WO2016032979A1 - Robotic grippers including finger webbing - Google Patents

Robotic grippers including finger webbing Download PDF

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Publication number
WO2016032979A1
WO2016032979A1 PCT/US2015/046603 US2015046603W WO2016032979A1 WO 2016032979 A1 WO2016032979 A1 WO 2016032979A1 US 2015046603 W US2015046603 W US 2015046603W WO 2016032979 A1 WO2016032979 A1 WO 2016032979A1
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WO
WIPO (PCT)
Prior art keywords
robotic gripper
web portion
fingers
pair
web
Prior art date
Application number
PCT/US2015/046603
Other languages
French (fr)
Inventor
Paul Ekas
Original Assignee
Paul Ekas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Paul Ekas filed Critical Paul Ekas
Publication of WO2016032979A1 publication Critical patent/WO2016032979A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J9/00—Programme-controlled manipulators
    • B25J9/10—Programme-controlled manipulators characterised by positioning means for manipulator elements
    • B25J9/104—Programme-controlled manipulators characterised by positioning means for manipulator elements with cables, chains or ribbons
    • B25J9/1045—Programme-controlled manipulators characterised by positioning means for manipulator elements with cables, chains or ribbons comprising tensioning means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/0009—Gripping heads and other end effectors comprising multi-articulated fingers, e.g. resembling a human hand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/08—Gripping heads and other end effectors having finger members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
    • B25J15/00—Gripping heads and other end effectors
    • B25J15/08—Gripping heads and other end effectors having finger members
    • B25J15/10—Gripping heads and other end effectors having finger members with three or more finger members
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S901/00—Robots
    • Y10S901/19—Drive system for arm
    • Y10S901/21—Flaccid drive element

Definitions

  • the present invention relates in general to mechanical robotic grippers. More particularly, the present invention relates to appendages for use in robotics applications and to apparatus and methods for improved grasping by robotic fingers.
  • the mechanical robotic grippers of an industrial robot often utilize "fingers" assembled from links and joints as the primary grasping mechanism of the manipulator.
  • a robotic gripper grasps an object, it places its fingers onto the object with the intent to secure a good grasp.
  • a challenge in robotic grasping systems is to obtain a good grasp on an object so that it is stable and does not slip while being grasped.
  • One aspect of the challenge for achieving a good grasp is the high computational complexity involved in identifying how to grasp an object. Placing the "fingers" onto the object in the correct locations to achieve good stability requires computing the positions of multiple joints of the robotic gripper so that there is an adequate surface contact and complementary forces to achieve a stable grasp.
  • Another challenge in achieving a good grasp is the mechanical complexity of having many independently motorized joints. This increases weight, cost and reliability challenges in the robotic grippers.
  • a class of robotic grippers has been previously implemented that provide a significant reduction in both the computational complexity and mechanical complexity of robotic grippers while still achieving a good grasp on objects.
  • This class of robotic grippers is known as under- actuated robotic grippers.
  • the key attribute of under- actuated robotic grippers is that multiple joints of the robotic gripper are dependent on a single actuator and provides a finger wrapping action onto objects to achieve high quality grasps. This operating modality requires less computational processing to define the grasp as compared to fully articulated robotic grippers.
  • Another challenge with robotic grippers is providing a grasp configuration that can allow multiple fingers to grasp objects having different sizes and shapes.
  • a simple example is a robotic gripper that needs to pick up both a large ball, such as a softball and a small ball such as a golf ball or ping-pong ball or another relatively small object. To optimally grasp each of these objects, the fingers of the robotic gripper will need a wider placement for the large ball and a narrower placement for the small ball.
  • Robotic grippers have been developed that are able to adjust their finger spacing to accommodate these types of differences, but with a trade-off in increased weight, complexity, and cost, as well as reduced reliability.
  • a web in the form of, for example, a flexible membrane or sheet, or a gridlike structure, is provided between the fingers (webbed fingers).
  • the web can be spread across more than two fingers.
  • the web is spread across two pairs of two adjacent fingers where both sets of adjacent fingers have membrane between them.
  • the web can be applied across the full range of fully articulated and under- articulated fingers.
  • the web is in the form of a membrane fabricated from an elastomeric material such as a rubber sheet and may have a gripping surface on the palm side.
  • the web is implemented as a glove that slides onto the robotic gripper and is replaceable.
  • the web can be shaped to achieve different grasp advantages.
  • the web fully encloses the space between the adjacent fingers and has a linear shape connecting the adjacent fingertips.
  • the conforming properties of the web may be non-uniform.
  • the web is provided with a stiff edge between the tips of the fingers while the rest of the web is more flexible. This is useful when picking up small objects between the adjacent fingers, for example a marble.
  • FIG. 1 is a diagram showing a prior art robotic gripper.
  • FIG. 2 is a diagram showing a robotic gripper having a web member spanning two adjacent fingers in accordance with one aspect of the invention.
  • FIG. 3 is a diagram showing a robotic gripper having a web member spanning two opposed pairs of adjacent fingers in accordance with another aspect of the invention.
  • FIG. 4 is a diagram showing an isometric view of a web member for use with robotic fingers according to an illustrative embodiment of the invention.
  • FIG. 5 is a diagram showing a view from the inside-facing surface of a web member for use with robotic fingers incorporating a stiffening member at its opposite ends according to an illustrative embodiment of the invention.
  • FIG. 6 is a diagram showing a view from the inside-facing surface of a web member for use with robotic fingers incorporating multiple stiffening members in the region between fingers according to an illustrative embodiment of the invention.
  • FIG. 7 is a top view of a robotic gripper including a web member between its fingers with a ball in its grasp.
  • FIG. 8 is a top view of a robotic gripper including a web member between its fingers with a small object in its grasp.
  • FIG.l shows a side view of a prior- art robotic gripper 10 having opposed sets of two fingers each formed from links 12 and 14 coupled together by joints 16 and connected by a joint 18 to a robotic gripper palm or base 20.
  • the robotic gripper 10 of FIG. 1 is satisfactory for its intended purpose but it is not particularly good at providing a grasp configuration that can allow multiple fingers to grasp objects having different sizes and shapes.
  • a simple example is a robotic gripper that needs to pick up both a large ball, such as a softball and a small ball such as a golf ball or ping-pong ball or another relatively small object. To optimally grasp each of these objects, the fingers of the robotic gripper will need a wider placement for the large ball and a narrower placement for the small ball.
  • Robotic grippers have been developed that are able to adjust their finger spacing to accommodate these types of differences, but with a trade-off in increased weight, complexity, and cost, as well as reduced reliability. Placing the fingers onto the object in the correct locations to achieve good stability requires computing the positions of multiple joints of the robotic gripper so that there is an adequate surface contact and complementary force to achieve a stable grasp.
  • FIG. 2 a diagram shows a robotic gripper 30 similar to the robotic gripper shown in FIG. 1.
  • robotic gripper 30 has opposed sets of two fingers each formed from links 12 and 14 coupled together by joints 16 and connected by a joint 18 to a robotic gripper palm 20.
  • an under- actuated robotic gripper While not necessary, it is particularly advantageous according to the present invention to employ an under- actuated robotic gripper.
  • This type of gripper provides a significant reduction in both the computational complexity and mechanical complexity while still achieving a good grasp on objects.
  • the key attribute of under- actuated robotic grippers is that multiple joints of the robotic gripper are dependent on a single control motor and provides a finger wrapping action onto objects to achieve high quality grasps. This operating modality requires less computational processing to define the grasp as compared to fully articulated robotic grippers.
  • Robotic gripper 30 of FIG. 2 is equipped with a web member 32 spanning two adjacent fingers in accordance with one aspect of the invention.
  • FIG. 3 a diagram shows a robotic gripper 40 similar to the robotic gripper shown in FIG. 1.
  • robotic gripper 30 has opposed sets of two fingers each formed from links 12 and 14 coupled together by joints 16 and connected by a joint 18 to a robotic gripper palm 20.
  • Robotic gripper 30 is equipped with a web member 32 spanning both sets of the two adjacent fingers in accordance with one aspect of the invention.
  • FIG. 4 a diagram shows an isometric view of a web member for use with robotic fingers according to an illustrative embodiment of the invention.
  • web member 32 is formed from a sheet of an elastomeric material such as rubber.
  • web member 32 is formed from a material having a grid structure.
  • web member 32 is formed in the nature of a glove and includes mounting sleeves 34 for attaching the web to robotic fingers.
  • Other attachment means such as but not limited to mating tabs and slots, Velcro, zip ties, etc., may be used to fasten the web member 32 between the robotic fingers. According to this feature of the invention, the web member 32 is easily replaceable.
  • the size of the inside diameter or other cross sectional area is selected to provide a snug fit over the links 12 and 14 that form the robotic fingers onto which it is to be installed without overly restricting movement of the fingers.
  • the spacing of the mounting sleeves may be selected based on the spacing between the adjacent fingers of the robotic gripper to which the web member is to be attached as well as the desired degree of at-rest tension, if any, desired for the sheet or webb 36 when it is not grasping an object.
  • the choice of materials for the web member 32 depends on the application needs and could include requirements for various textures, durability, cost, weight, pliability, permeability, allergenic, temperature and chemical resistance. Examples include using soft material, such as, but not limited to, silk and lamb's wool, for touching humans, synthetic gripping material, such as 3M GM640 for warehouse pick and place, disposable latex gloves for hospital and food preparation. When under water, it is useful to use mesh fabrics that the water can flow through to minimize currents induced by the gripper movements. Across various industrial applications, the material of the webbing may need to be chemical proof such as Teflon 500 or temperature proof, such as leather for welding.
  • the pliability of the web member 32 can be optimized for different applications.
  • the objective is to equalize force distribution across the web and robot fingers, for example in picking up an egg, it is important that the material is stiff enough to transmit the force of the fingers across it onto the full surface of the object, and not exert the majority of the pressure on the egg through the fingers.
  • a very pliable material can be used, for example, when picking up a mouse.
  • the mouse would be contained within the very pliable sheet or web 36 between the closed fingers.
  • the fabric it would also be useful for the fabric to be breathable.
  • the web member 32 could be used for non-grasping purposes, such as sanding wood or scrubbing dishes.
  • the surface of the sheet or web 36 could be made of abrasive materials.
  • web member 32 may include features on its gripping surface (i.e., its "palm facing" surface) to enhance gripping and durability.
  • a diagram shows a view from the inside-facing surface of a web member for use with robotic fingers incorporating stiffening members 38 at its opposite ends according to an illustrative embodiment of the invention.
  • Stiffening members 38 may be integral with the sheet or web 36, formed for example, by providing a mold including thicker features at the ends of the sheet or web 36, or may be otherwise attached to the sheet or web 36.
  • web member 32 is formed from a rubber sheet having a textured or otherwise featured gripping surface on the palm side
  • the membrane fully encloses the space between the adjacent fingers and has a linear shape connecting the adjacent fingertips.
  • FIG. 6 a diagram show a view from the inside-facing surface of a web member for use with robotic fingers incorporating multiple stiffening or grip enhancing members 38 in the region between fingers according to an illustrative embodiment of the invention.
  • the stiffening or grip enhancing members 38 may be different in nature at and away from the ends of the web member to perform different functions such as stiffening, durability, and/or gripping enhancement.
  • other features may be incorporated into web member 32 to improve the grasp of the robotic fingers on specifically shaped items.
  • FIG. 7 is a top view of a robotic gripper like robotic gripper 40 of FIG. 3 including a web member between its fingers with a ball in its grasp. Where elements of FIG. 7 are present in other drawing figures, they will be referred to using the same reference numerals used in the other drawing figures.
  • Distal finger segments comprising links 12 extend from gripper base 20 (through finger segments 12 not shown).
  • a web member 32 is mounted on both sets of adjacent fingers by inserting the links 12 and 14 into the mounting sleeves 34 on the web member 32.
  • the sheet or web 36 is shown extending between the distal link 12 of each set of adjacent fingers.
  • the robotic gripper is seen grasping a ball 42.
  • the sheet or web 36 spanning each set of adjacent robotic fingers can be seen conforming to the shape of the ball 42.
  • FIG. 7 shows how the web member 32 wraps around the contours of the ball 42 to increase surface area coverage on the ball. This significantly improves the grasp of the robotic gripper.
  • FIG. 8 is a top view of a robotic gripper like robotic gripper 50 of FIG. 3 including a web member between its fingers.
  • the robotic gripper 50 is shown grasping a small object 44 that is too small to be grasped by the links 12 and 14 of all four of its fingers 17.
  • FIG. 8 shows that the web member 32 has wrapped the object for a reliable grasp.
  • the flexible web member 32 provides additional surface area to the robotic gripper and follows the surface contours of the object to significantly improve grasp stability and strength.
  • the web member 32 can also provide stability to the fingers when wrapping around smaller objects that might tend to push the adjacent fingers away from each other around the object. These benefits come with a minimal increase in complexity, cost and power.
  • the resulting grasp requires an equal or less amount of computational power than utilizing alternative "finger" based robotic grippers.
  • the web member 32 is stretched across one or more sets of adjacent fingers. In this case, a web is stretched across each pair of adjacent fingers.
  • This example uses a single actuator to control all four under- actuated fingers.
  • the robotic gripper closes on a non-uniform shape, each finger closes and wraps around the object uniquely resulting in a solid four-finger grasp.
  • the web member 32 additionally wraps around the object providing a substantial increase in contact between the object and the robotic gripper which provides additional stability and surface grip.
  • Another benefit of the web member 32 is when the size of the object is too small to be grasped by the adjacent fingers, it can be easily grasped using the web member 32 between the fingers.
  • An example is using the four-finger robotic gripper described in FIGS 1-3 above. If the adjacent fingers are spaced wide enough to pick up a large ball, such as a softball, then a small ball such as a ping-pong or golf ball can fall between the fingers. In this case the web member 32 will grasp the small ball even if all of the links of the four fingers are not in contact with the ball. In addition, the grasp will be very secure because the web member 32 will wrap around the ball.

Abstract

A robotic gripper includes a gripper palm, a first pair of adjacent fingers extending from the palm, each finger in the first pair of fingers including a first link coupled to a second link by a rotatable joint, and a second pair of adjacent fingers extending from the palm, each finger in the second pair of fingers including a first link coupled to a second link by a rotatable joint. A web member is attached to the first pair of adjacent fingers, the web member having a web portion having a gripping face, the web portion disposed between a first one of the first pair of adjacent fingers and a second one of the second pair of adjacent fingers.

Description

ROBOTIC GRIPPERS INCLUDING FINGER WEBBING
[0001] This international patent application claims the benefit of United States Provisional Patent Application No. 62/041,332 for "Cable Guide System for Robotic Mechanical Manipulator Structure," filed August 25, 2014; Provisional Patent Application No. 62/087,664 for "Tendon Configuration for Under-Actuated Robotic Manipulator With Progressive Wrapping Links," filed December 4, 2014; Provisional Patent Application No. 62/165,080 for "Tendon Configuration for Under-Actuated Robotic Manipulator With Progressive Wrapping Links," filed May 21, 2015; and Provisional Patent Application No. 62/165,074 for "Apparatus and Method for Attaching Apparatus to Robotic Fingers," filed May 21, 2015 the contents of all of which are incorporated in this disclosure by reference in their entirety.
BACKGROUND
Field of the invention
[0002] The present invention relates in general to mechanical robotic grippers. More particularly, the present invention relates to appendages for use in robotics applications and to apparatus and methods for improved grasping by robotic fingers.
The Prior Art
[0003] The mechanical robotic grippers of an industrial robot often utilize "fingers" assembled from links and joints as the primary grasping mechanism of the manipulator. When a robotic gripper grasps an object, it places its fingers onto the object with the intent to secure a good grasp. A challenge in robotic grasping systems is to obtain a good grasp on an object so that it is stable and does not slip while being grasped.
[0004] One aspect of the challenge for achieving a good grasp is the high computational complexity involved in identifying how to grasp an object. Placing the "fingers" onto the object in the correct locations to achieve good stability requires computing the positions of multiple joints of the robotic gripper so that there is an adequate surface contact and complementary forces to achieve a stable grasp. [0005] Another challenge in achieving a good grasp is the mechanical complexity of having many independently motorized joints. This increases weight, cost and reliability challenges in the robotic grippers.
[0006] A class of robotic grippers has been previously implemented that provide a significant reduction in both the computational complexity and mechanical complexity of robotic grippers while still achieving a good grasp on objects. This class of robotic grippers is known as under- actuated robotic grippers. The key attribute of under- actuated robotic grippers is that multiple joints of the robotic gripper are dependent on a single actuator and provides a finger wrapping action onto objects to achieve high quality grasps. This operating modality requires less computational processing to define the grasp as compared to fully articulated robotic grippers.
[0007] Another challenge with robotic grippers is providing a grasp configuration that can allow multiple fingers to grasp objects having different sizes and shapes. A simple example is a robotic gripper that needs to pick up both a large ball, such as a softball and a small ball such as a golf ball or ping-pong ball or another relatively small object. To optimally grasp each of these objects, the fingers of the robotic gripper will need a wider placement for the large ball and a narrower placement for the small ball. Robotic grippers have been developed that are able to adjust their finger spacing to accommodate these types of differences, but with a trade-off in increased weight, complexity, and cost, as well as reduced reliability.
SUMMARY
[0008] According to a first aspect of the invention, in a robotic gripper with "fingers" a web in the form of, for example, a flexible membrane or sheet, or a gridlike structure, is provided between the fingers (webbed fingers).
[0009] According to a second aspect of the invention, the web can be spread across more than two fingers. According to one embodiment of the invention, the web is spread across two pairs of two adjacent fingers where both sets of adjacent fingers have membrane between them.
[0010] According to a third aspect of the invention, the web can be applied across the full range of fully articulated and under- articulated fingers.
[0011] According to a fourth aspect of the invention, a range of materials can be utilized to implement the web. According to one embodiment of the invention, the web is in the form of a membrane fabricated from an elastomeric material such as a rubber sheet and may have a gripping surface on the palm side.
[0012] According to a fifth aspect of the invention, a variety of methods may be used to attach the web to the robotic gripper. According to one embodiment of the invention, the web is implemented as a glove that slides onto the robotic gripper and is replaceable.
[0013] According to a sixth aspect of the invention, the web can be shaped to achieve different grasp advantages. According to one embodiment of the invention, the web fully encloses the space between the adjacent fingers and has a linear shape connecting the adjacent fingertips.
[0014] According to a seventh aspect of the invention, the conforming properties of the web may be non-uniform. According to one embodiment of the invention, the web is provided with a stiff edge between the tips of the fingers while the rest of the web is more flexible. This is useful when picking up small objects between the adjacent fingers, for example a marble.
BRIEF DESCRIPTION OF THE DRAWING FIGURES [0015] FIG. 1 is a diagram showing a prior art robotic gripper.
[0016] FIG. 2 is a diagram showing a robotic gripper having a web member spanning two adjacent fingers in accordance with one aspect of the invention.
[0017] FIG. 3 is a diagram showing a robotic gripper having a web member spanning two opposed pairs of adjacent fingers in accordance with another aspect of the invention.
[0018] FIG. 4 is a diagram showing an isometric view of a web member for use with robotic fingers according to an illustrative embodiment of the invention.
[0019] FIG. 5 is a diagram showing a view from the inside-facing surface of a web member for use with robotic fingers incorporating a stiffening member at its opposite ends according to an illustrative embodiment of the invention.
[0020] FIG. 6 is a diagram showing a view from the inside-facing surface of a web member for use with robotic fingers incorporating multiple stiffening members in the region between fingers according to an illustrative embodiment of the invention.
[0021] FIG. 7 is a top view of a robotic gripper including a web member between its fingers with a ball in its grasp. [0022] FIG. 8 is a top view of a robotic gripper including a web member between its fingers with a small object in its grasp.
DETAILED DESCRIPTION
[0023] Persons of ordinary skill in the art will realize that the following description of the present invention is illustrative only and not in any way limiting. Other embodiments of the invention will readily suggest themselves to such skilled persons.
[0024] Referring first to FIG. 1, FIG.l shows a side view of a prior- art robotic gripper 10 having opposed sets of two fingers each formed from links 12 and 14 coupled together by joints 16 and connected by a joint 18 to a robotic gripper palm or base 20. The robotic gripper 10 of FIG. 1 is satisfactory for its intended purpose but it is not particularly good at providing a grasp configuration that can allow multiple fingers to grasp objects having different sizes and shapes. A simple example is a robotic gripper that needs to pick up both a large ball, such as a softball and a small ball such as a golf ball or ping-pong ball or another relatively small object. To optimally grasp each of these objects, the fingers of the robotic gripper will need a wider placement for the large ball and a narrower placement for the small ball. Robotic grippers have been developed that are able to adjust their finger spacing to accommodate these types of differences, but with a trade-off in increased weight, complexity, and cost, as well as reduced reliability. Placing the fingers onto the object in the correct locations to achieve good stability requires computing the positions of multiple joints of the robotic gripper so that there is an adequate surface contact and complementary force to achieve a stable grasp.
[0025] Referring now to FIG. 2, a diagram shows a robotic gripper 30 similar to the robotic gripper shown in FIG. 1. Like robotic gripper 10 of FIG. 1, robotic gripper 30 has opposed sets of two fingers each formed from links 12 and 14 coupled together by joints 16 and connected by a joint 18 to a robotic gripper palm 20. While not necessary, it is particularly advantageous according to the present invention to employ an under- actuated robotic gripper. This type of gripper provides a significant reduction in both the computational complexity and mechanical complexity while still achieving a good grasp on objects. The key attribute of under- actuated robotic grippers is that multiple joints of the robotic gripper are dependent on a single control motor and provides a finger wrapping action onto objects to achieve high quality grasps. This operating modality requires less computational processing to define the grasp as compared to fully articulated robotic grippers.
[0026] Robotic gripper 30 of FIG. 2 is equipped with a web member 32 spanning two adjacent fingers in accordance with one aspect of the invention.
[0027] Referring now to FIG. 3, a diagram shows a robotic gripper 40 similar to the robotic gripper shown in FIG. 1. Like robotic gripper 10 of FIG. 1, robotic gripper 30 has opposed sets of two fingers each formed from links 12 and 14 coupled together by joints 16 and connected by a joint 18 to a robotic gripper palm 20. Robotic gripper 30 is equipped with a web member 32 spanning both sets of the two adjacent fingers in accordance with one aspect of the invention.
[0028] Referring now to FIG. 4, a diagram shows an isometric view of a web member for use with robotic fingers according to an illustrative embodiment of the invention. In one illustrative embodiment of the present invention, web member 32 is formed from a sheet of an elastomeric material such as rubber. In another illustrative embodiment of the invention, web member 32 is formed from a material having a grid structure. In this embodiment, web member 32 is formed in the nature of a glove and includes mounting sleeves 34 for attaching the web to robotic fingers. Other attachment means, such as but not limited to mating tabs and slots, Velcro, zip ties, etc., may be used to fasten the web member 32 between the robotic fingers. According to this feature of the invention, the web member 32 is easily replaceable.
[0029] The size of the inside diameter or other cross sectional area is selected to provide a snug fit over the links 12 and 14 that form the robotic fingers onto which it is to be installed without overly restricting movement of the fingers. A sheet or web 36 of the web member 32 disposed between the mounting sleeves 34. The spacing of the mounting sleeves may be selected based on the spacing between the adjacent fingers of the robotic gripper to which the web member is to be attached as well as the desired degree of at-rest tension, if any, desired for the sheet or webb 36 when it is not grasping an object.
[0030] The choice of materials for the web member 32 depends on the application needs and could include requirements for various textures, durability, cost, weight, pliability, permeability, allergenic, temperature and chemical resistance. Examples include using soft material, such as, but not limited to, silk and lamb's wool, for touching humans, synthetic gripping material, such as 3M GM640 for warehouse pick and place, disposable latex gloves for hospital and food preparation. When under water, it is useful to use mesh fabrics that the water can flow through to minimize currents induced by the gripper movements. Across various industrial applications, the material of the webbing may need to be chemical proof such as Teflon 500 or temperature proof, such as leather for welding.
[0031] The pliability of the web member 32 can be optimized for different applications. When the objective is to equalize force distribution across the web and robot fingers, for example in picking up an egg, it is important that the material is stiff enough to transmit the force of the fingers across it onto the full surface of the object, and not exert the majority of the pressure on the egg through the fingers.
[0032] When the objective is to contain an object between the fingers and without much force, a very pliable material can be used, for example, when picking up a mouse. The mouse would be contained within the very pliable sheet or web 36 between the closed fingers. In this example, it would also be useful for the fabric to be breathable.
[0033] The web member 32 could be used for non-grasping purposes, such as sanding wood or scrubbing dishes. In this case, the surface of the sheet or web 36 could be made of abrasive materials.
[0034] Referring now to FIGS. 5 and 6, web member 32 may include features on its gripping surface (i.e., its "palm facing" surface) to enhance gripping and durability. As a non-limiting example, referring to FIG. 5, a diagram shows a view from the inside-facing surface of a web member for use with robotic fingers incorporating stiffening members 38 at its opposite ends according to an illustrative embodiment of the invention. Stiffening members 38 may be integral with the sheet or web 36, formed for example, by providing a mold including thicker features at the ends of the sheet or web 36, or may be otherwise attached to the sheet or web 36. Providing a stiffer edge between the tips of the fingers while the rest of the membrane is more flexible is useful when picking up small objects between the adjacent fingers, for example a marble. According to one embodiment, web member 32 is formed from a rubber sheet having a textured or otherwise featured gripping surface on the palm side According to another embodiment the membrane fully encloses the space between the adjacent fingers and has a linear shape connecting the adjacent fingertips.
[0035] According to another non-limiting example, referring to FIG. 6, a diagram show a view from the inside-facing surface of a web member for use with robotic fingers incorporating multiple stiffening or grip enhancing members 38 in the region between fingers according to an illustrative embodiment of the invention. The stiffening or grip enhancing members 38 may be different in nature at and away from the ends of the web member to perform different functions such as stiffening, durability, and/or gripping enhancement. As will be readily appreciated by persons of ordinary skill in the art, other features may be incorporated into web member 32 to improve the grasp of the robotic fingers on specifically shaped items.
[0036] FIG. 7 is a top view of a robotic gripper like robotic gripper 40 of FIG. 3 including a web member between its fingers with a ball in its grasp. Where elements of FIG. 7 are present in other drawing figures, they will be referred to using the same reference numerals used in the other drawing figures.
[0037] Distal finger segments comprising links 12 extend from gripper base 20 (through finger segments 12 not shown). A web member 32 is mounted on both sets of adjacent fingers by inserting the links 12 and 14 into the mounting sleeves 34 on the web member 32. The sheet or web 36 is shown extending between the distal link 12 of each set of adjacent fingers. The robotic gripper is seen grasping a ball 42. The sheet or web 36 spanning each set of adjacent robotic fingers can be seen conforming to the shape of the ball 42. FIG. 7 shows how the web member 32 wraps around the contours of the ball 42 to increase surface area coverage on the ball. This significantly improves the grasp of the robotic gripper.
[0038] FIG. 8 is a top view of a robotic gripper like robotic gripper 50 of FIG. 3 including a web member between its fingers. The robotic gripper 50 is shown grasping a small object 44 that is too small to be grasped by the links 12 and 14 of all four of its fingers 17. FIG. 8 shows that the web member 32 has wrapped the object for a reliable grasp.
[0039] The flexible web member 32 provides additional surface area to the robotic gripper and follows the surface contours of the object to significantly improve grasp stability and strength. The web member 32 can also provide stability to the fingers when wrapping around smaller objects that might tend to push the adjacent fingers away from each other around the object. These benefits come with a minimal increase in complexity, cost and power. The resulting grasp requires an equal or less amount of computational power than utilizing alternative "finger" based robotic grippers.
[0040] In an example implementation of a four-finger under-actuated robotic gripper with two pairs of opposing fingers, the web member 32 is stretched across one or more sets of adjacent fingers. In this case, a web is stretched across each pair of adjacent fingers. This example uses a single actuator to control all four under- actuated fingers. When the robotic gripper closes on a non-uniform shape, each finger closes and wraps around the object uniquely resulting in a solid four-finger grasp. In this example, the web member 32 additionally wraps around the object providing a substantial increase in contact between the object and the robotic gripper which provides additional stability and surface grip.
[0041] Another benefit of the web member 32 is when the size of the object is too small to be grasped by the adjacent fingers, it can be easily grasped using the web member 32 between the fingers. An example is using the four-finger robotic gripper described in FIGS 1-3 above. If the adjacent fingers are spaced wide enough to pick up a large ball, such as a softball, then a small ball such as a ping-pong or golf ball can fall between the fingers. In this case the web member 32 will grasp the small ball even if all of the links of the four fingers are not in contact with the ball. In addition, the grasp will be very secure because the web member 32 will wrap around the ball.
[0042] Although the invention has been described in detail by illustrative embodiments, it is to be understood that such detail is solely for that purpose and that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover modifications and equivalent arrangements. For example, it is to be understood that the present invention contemplates that, to the extent possible, one or more features of any embodiment can be combined with one or more features of any other embodiment.

Claims

What is claimed is:
1. A robotic gripper comprising:
a gripper palm;
a first pair of adjacent fingers extending from the palm, each finger in the first pair of fingers including a first link coupled to a second link by a rotatable joint;
a second pair of adjacent fingers extending from the palm, each finger in the second pair of fingers including a first link coupled to a second link by a rotatable joint; and a web member attached to the first pair of adjacent fingers, the web member having a web portion having a gripping face, the web portion disposed between a first one of the first pair of adjacent fingers and a second one of the second pair of adjacent fingers.
2. The robotic gripper of claim 1 wherein the web member comprises a web disposed between a first sleeve enveloping a first one of the adjacent fingers and a second sleeve enveloping a second one of the adjacent fingers.
3. The Robotic gripper of claim 2 wherein the first sleeve and the second sleeve each comprise two axially aligned segments separated to define an inter- segment space therebetween and the rotatable joints of the adjacent fingers are disposed in the inter-segment spaces between the axially aligned segments of the sleeves.
4. The robotic gripper of claim 1 wherein the web portion is formed from an elastomeric material.
5. The robotic gripper of claim 4 wherein the web portion is formed from rubber.
6. The robotic gripper of claim 1 wherein the web portion is formed from a hypo- aller genie material.
7. The robotic gripper of claim 1 wherein the web portion is formed from a chemical resistant material.
8. The robotic gripper of claim 1 wherein the web portion is formed from a synthetic gripping material.
9. The robotic gripper of claim 1 wherein the web portion is formed from disposable latex gloves.
10. The robotic gripper of claim 1 wherein the web portion is formed from a mesh fabric.
11. The robotic gripper of claim 1 wherein the web portion is formed from a high- temperature resistant material.
12. The robotic gripper of claim 1 wherein the web portion is formed from a material having a pliability and/or stiffness selected for the application it is to handle.
13. The robotic gripper of claim 1 wherein the web portion is formed from a fabric sheet.
14. The robotic gripper of claim 1 wherein the web portion is formed from an abrasive material.
15. The robotic gripper of claim 1 wherein the web portion includes features on its gripping face to enhance gripping and durability.
16. The robotic gripper of claim 1 wherein the web portion includes stiffening members disposed thereon.
17. The robotic gripper of claim 1 wherein the web portion is formed from a rubber sheet having a featured gripping surface on the gripping face.
18. The robotic gripper of claim 1 wherein the web portion includes multiple stiffening and/or grip enhancing members between the adjacent pair of fingers.
19. The robotic gripper of claim 1, further comprising:
a web member attached to the second pair of adjacent fingers, the web member having a web portion having a gripping face, the web portion disposed between a first one of the second pair of adjacent fingers and a second one of the second pair of adjacent fingers.
PCT/US2015/046603 2014-08-25 2015-08-24 Robotic grippers including finger webbing WO2016032979A1 (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201462041332P 2014-08-25 2014-08-25
US62/041,332 2014-08-25
US201462087664P 2014-12-04 2014-12-04
US62/087,664 2014-12-04
US201562165080P 2015-05-21 2015-05-21
US201562165074P 2015-05-21 2015-05-21
US62/165,074 2015-05-21
US62/165,080 2015-05-21

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PCT/US2015/046603 WO2016032979A1 (en) 2014-08-25 2015-08-24 Robotic grippers including finger webbing
PCT/US2015/046596 WO2016032976A1 (en) 2014-08-25 2015-08-24 Link structure and assembly for manipulator structure
PCT/US2015/046606 WO2016032980A1 (en) 2014-08-25 2015-08-24 Concave bearing outer race for robotic joints
PCT/US2015/046780 WO2016033101A1 (en) 2014-08-25 2015-08-25 Link structure and assembly for manipulator structure

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PCT/US2015/046606 WO2016032980A1 (en) 2014-08-25 2015-08-24 Concave bearing outer race for robotic joints
PCT/US2015/046780 WO2016033101A1 (en) 2014-08-25 2015-08-25 Link structure and assembly for manipulator structure

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Families Citing this family (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10046461B2 (en) * 2014-08-25 2018-08-14 Paul Ekas Link structure and assembly including cable guide system for robotic mechanical manipulator structure
CN106573382B (en) * 2014-08-25 2020-12-01 保罗·埃卡斯 Shock absorbing and self realigning robot finger
US9914214B1 (en) * 2016-02-22 2018-03-13 X Development Llc Preshaping for underactuated fingers
CN105773607B (en) * 2016-03-17 2017-12-29 清华大学 Surface two dimension movable machine finger cell arrangement
CN105881565B (en) * 2016-05-23 2018-02-02 清华大学 The flat folder adaptive robot finger apparatus of double leval jib
CN105881571B (en) * 2016-05-27 2018-01-23 燕山大学 Flexible couplings list drives human-imitated finger
CN106113024B (en) * 2016-06-30 2018-12-14 北京空间飞行器总体设计部 A kind of three freedom degree manipulator of tendon-connecting rod mixed drive refers to and control method
CN106113071A (en) * 2016-08-08 2016-11-16 清华大学 Motor is put five gear coupling adaptive robot finger apparatus
CN106476023B (en) * 2016-08-31 2018-11-09 清华大学 Horizontalization presss from both sides adaptive robot finger apparatus in seven wheel idle running motors
CN106363664B (en) * 2016-11-03 2018-10-23 清华大学深圳研究生院 A kind of power plant of mechanical arm
US11104011B2 (en) * 2016-11-10 2021-08-31 Robert Chisena Mechanical robot arm assembly
CN106863271B (en) * 2017-03-06 2019-06-25 温州泓呈祥科技有限公司 A kind of robot arm based on optical signal control
US11019862B1 (en) 2017-04-06 2021-06-01 United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Grasp assist system with triple Brummel soft anchor
CN107097243B (en) * 2017-05-10 2019-09-24 泰州市晨虹数控设备制造有限公司 A kind of robot based on gimbal suspension
JP6545768B2 (en) * 2017-10-02 2019-07-17 スキューズ株式会社 Finger mechanism, robot hand and control method of robot hand
CN107553511A (en) * 2017-10-09 2018-01-09 联想(北京)有限公司 mechanical hand
CN107838941A (en) * 2017-10-13 2018-03-27 江苏捷帝机器人股份有限公司 A kind of multidirectional fixed bit active machine person joint's casting
CN107825449A (en) * 2017-11-30 2018-03-23 南京邮电大学 Tendon is driving singly to refer to Dextrous Hand and its control system and control method
US10759062B2 (en) 2017-12-08 2020-09-01 Dishcraft Robotics, Inc. Article of dishware gripping systems
US10759063B1 (en) * 2017-12-15 2020-09-01 X Development Llc Reusable mechanically fused dovetail retainer mechanisms
JP6629826B2 (en) 2017-12-25 2020-01-15 ファナック株式会社 Robot and its striatum processing structure
CN108583713B (en) * 2018-05-02 2019-09-13 北京林业大学 A kind of bionic type standing tree climbing robot and its application method
US11000948B2 (en) * 2018-05-29 2021-05-11 General Electric Company Robotic arm assembly
US11305420B2 (en) * 2018-05-31 2022-04-19 Virginia Tech Intellectual Properties, Inc. Articulated multi-link robotic tail systems and methods
US11433557B2 (en) * 2018-08-28 2022-09-06 Divergent Technologies, Inc. Buffer block apparatuses and supporting apparatuses
US11787071B2 (en) * 2018-10-25 2023-10-17 Wink Robotics Detachable end effectors for cosmetics robotics
CN109278061B (en) * 2018-10-31 2020-09-29 深圳市优必选科技有限公司 Robot and finger transmission structure thereof
CN109202937B (en) * 2018-11-19 2020-07-14 河北科技大学 Modular multi-joint line control robot
WO2020106134A1 (en) * 2018-11-23 2020-05-28 Hernando Ortega Carrillo Robotic limb, link of a robot limb and method for supporting a robotic limb, with adjustable anthropomorphic movement
JP7066875B2 (en) * 2018-11-30 2022-05-13 オリンパス株式会社 Gripping mechanism
CN109909988B (en) * 2019-01-29 2021-01-19 西安交通大学 Multistable rigidity-variable robot structure
WO2020156414A1 (en) * 2019-01-31 2020-08-06 The University Of Hong Kong A compact dental robotic system
DE102019201628B4 (en) * 2019-02-08 2022-02-17 Kuka Deutschland Gmbh robot structure element
WO2020235706A1 (en) * 2019-05-21 2020-11-26 엘지전자 주식회사 Action robot
WO2020235707A1 (en) * 2019-05-21 2020-11-26 엘지전자 주식회사 Action robot
WO2020235705A1 (en) 2019-05-21 2020-11-26 엘지전자 주식회사 Action robot
CN110271020B (en) * 2019-05-29 2021-04-27 浙江大学 Bionic mechanical kinematics optimization method
KR102220191B1 (en) * 2019-08-01 2021-02-25 엘지전자 주식회사 Hand of robot and control method of the same
CN111113416A (en) * 2019-12-19 2020-05-08 郑州宇恒环保技术有限公司 Machine vision-based bearing online detection system
KR102279668B1 (en) * 2020-07-17 2021-07-20 재단법인 대구경북첨단의료산업진흥재단 Wire driving part for joints of robot
US11890071B2 (en) 2020-08-31 2024-02-06 John A Cordasco Robotic systems, devices and methods for performing dental procedures on patients
CN112809719A (en) * 2021-02-02 2021-05-18 珞石（北京）科技有限公司 Flexible underactuated dexterous manipulator based on linear transmission and modular fingers
CN114193503B (en) * 2021-12-30 2024-01-23 山东大学 Manipulator finger joint and underactuated manipulator
DE102022124068A1 (en) 2022-09-20 2024-03-21 Festo Se & Co. Kg Robot fingers for a robot hand

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050102037A1 (en) * 2001-01-23 2005-05-12 Hiroshi Matsuda Multi-finger hand device
US20050218679A1 (en) * 2002-06-24 2005-10-06 Kazuo Yokoyama Articulated driving mechanism, method of manufacturing the mechanism, and holding hand and robot using the mechanism
US20090018670A1 (en) * 2005-12-20 2009-01-15 Ottto Bock Healthcare Ip Gmbh & Co. Kg Finger and hand prosthesis
JP2010110846A (en) * 2008-11-05 2010-05-20 Panasonic Corp Robot hand and control device used for the same
US20110068595A1 (en) * 2009-09-22 2011-03-24 Gm Global Technology Operations, Inc. Robotic finger assembly

Family Cites Families (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1297313B (en) * 1964-11-13 1969-06-12 Gressbach Arthur Self-gripping load carrying device
US3954194A (en) * 1974-10-15 1976-05-04 Caterpillar Tractor Co. Material grasping apparatus
US4921293A (en) * 1982-04-02 1990-05-01 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multi-fingered robotic hand
JPS59219182A (en) 1983-05-26 1984-12-10 有限会社友信開発 Joint robot
EP0156492B1 (en) * 1984-03-21 1988-11-02 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and An enveloping gripper
US4804220A (en) * 1986-01-21 1989-02-14 Rosheim Mark E Wrist tendon actuator
US4865376A (en) * 1987-09-25 1989-09-12 Leaver Scott O Mechanical fingers for dexterity and grasping
US4860864A (en) 1987-11-16 1989-08-29 General Motors Corporation Clutch for robot or like
US5447403A (en) * 1990-01-05 1995-09-05 Engler, Jr.; Charles D. Dexterous programmable robot and control system
JPH05253171A (en) * 1992-03-12 1993-10-05 Olympus Optical Co Ltd Multi-degree-of-freedom flexible pipe
JPH06114000A (en) * 1992-09-30 1994-04-26 Olympus Optical Co Ltd Medical manipulator
US5570920A (en) 1994-02-16 1996-11-05 Northeastern University Robot arm end effector
JPH09254078A (en) 1996-03-25 1997-09-30 Toshiba Corp Robot arm device
US6247738B1 (en) * 1998-01-20 2001-06-19 Daum Gmbh Robot hand
US5984394A (en) * 1998-06-26 1999-11-16 Bergeron; Raymond E. Power bucket
GB0020461D0 (en) 2000-08-18 2000-10-11 Oliver Crispin Consulting Ltd Improvements in and relating to the robotic positioning of a work tool to a sensor
WO2003013783A1 (en) 2001-08-09 2003-02-20 Pemstar, Inc. Magnetically attached robotic breakaway
JP4114568B2 (en) * 2003-08-18 2008-07-09 沖電気工業株式会社 Articulated device
JP2005351476A (en) 2004-05-10 2005-12-22 Gates Unitta Asia Co Slide ring for pulley
US9261172B2 (en) * 2004-09-30 2016-02-16 Intuitive Surgical Operations, Inc. Multi-ply strap drive trains for surgical robotic arms
JP2006123149A (en) 2004-11-01 2006-05-18 Sharp Corp Joint driving mechanism and robot hand
JP2006159320A (en) * 2004-12-03 2006-06-22 Sharp Corp Robot hand
US20060142102A1 (en) * 2004-12-23 2006-06-29 Mijo Radocaj Pulley assembly
US20080000317A1 (en) * 2006-05-31 2008-01-03 Northwestern University Cable driven joint actuator and method
US8016509B2 (en) * 2007-05-04 2011-09-13 Zhong Gao Robotic joint
JP2009056558A (en) * 2007-08-31 2009-03-19 Toshiba Corp Manipulator
US8402860B2 (en) 2007-10-10 2013-03-26 Panasonic Corporation Structure, manipulator and structure control system
JP4739386B2 (en) * 2007-10-10 2011-08-03 パナソニック株式会社 Structure, manipulator and structure control system
JP5128904B2 (en) * 2007-10-31 2013-01-23 株式会社東芝 manipulator
WO2009080373A1 (en) 2007-12-20 2009-07-02 Abb Research Ltd Industrial robot with magnetic safety coupling
KR20100030879A (en) * 2008-09-11 2010-03-19 삼성전자주식회사 Robot hand and humanoid robot having the same
CN101444918B (en) * 2008-12-26 2010-09-29 清华大学 Under-actuated bionic finger device with function of pre-bending grasping
JP2010214474A (en) * 2009-03-13 2010-09-30 Panasonic Corp Manipulator
KR101117253B1 (en) * 2009-06-25 2012-03-15 고려대학교 산학협력단 Robot Arm
US8424941B2 (en) * 2009-09-22 2013-04-23 GM Global Technology Operations LLC Robotic thumb assembly
WO2011036626A2 (en) * 2009-09-22 2011-03-31 Ariel - University Research And Development Company, Ltd. Orientation controller, mechanical arm, gripper and components thereof
CN102029609B (en) * 2009-09-30 2012-09-19 鸿富锦精密工业（深圳）有限公司 Mechanical hand
AU2010200035A1 (en) * 2010-01-06 2011-07-21 Artisans of Florence PTY LTD Reciprocating Mechanism
KR101706094B1 (en) * 2010-01-14 2017-02-14 삼성전자주식회사 Robot joint driving apparatus and robot having the same, cable linking method of robot joint driving apparatus
CN102821918A (en) * 2010-03-24 2012-12-12 株式会社安川电机 Robot hand and robot device
JP5545052B2 (en) * 2010-06-10 2014-07-09 セイコーエプソン株式会社 Electric actuator
CN102310405A (en) * 2010-07-05 2012-01-11 扬州大学 Angle amplification parallel mechanism
JP2012110971A (en) * 2010-11-19 2012-06-14 Yaskawa Electric Corp Robot
US8578810B2 (en) * 2011-02-14 2013-11-12 Intuitive Surgical Operations, Inc. Jointed link structures exhibiting preferential bending, and related methods
KR101186806B1 (en) 2011-03-16 2012-09-28 주식회사 이턴 Active universal joint apparatus with multi-degree of freedom
EP3954512A3 (en) * 2011-03-21 2022-03-02 SRI International Inc. Mobile robotic manipulator system
JP5804310B2 (en) * 2011-05-24 2015-11-04 学校法人東京理科大学 Upper arm holding device and upper arm assist device
JP2013123785A (en) * 2011-12-16 2013-06-24 Seiko Epson Corp Robot hand and robot
KR101357139B1 (en) * 2012-03-30 2014-02-12 한국과학기술원 Miniature Robot Hand
KR102023906B1 (en) * 2012-05-25 2019-09-24 삼성전자주식회사 Arm unit and robot having the same
KR101369515B1 (en) * 2012-08-08 2014-03-06 서울대학교산학협력단 Variable Stiffness Structure
CN102862160A (en) * 2012-10-04 2013-01-09 南京大五教育科技有限公司 Bionic manipulator based on drive of electromagnetic muscles and tendons
US8833827B2 (en) * 2012-10-09 2014-09-16 Willow Garage, Inc. Kinetic and dimensional optimization for a tendon-driven gripper
KR101427322B1 (en) 2013-01-31 2014-08-06 한국과학기술원 Joint device
US10046461B2 (en) * 2014-08-25 2018-08-14 Paul Ekas Link structure and assembly including cable guide system for robotic mechanical manipulator structure
CN106573382B (en) * 2014-08-25 2020-12-01 保罗·埃卡斯 Shock absorbing and self realigning robot finger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050102037A1 (en) * 2001-01-23 2005-05-12 Hiroshi Matsuda Multi-finger hand device
US20050218679A1 (en) * 2002-06-24 2005-10-06 Kazuo Yokoyama Articulated driving mechanism, method of manufacturing the mechanism, and holding hand and robot using the mechanism
US20090018670A1 (en) * 2005-12-20 2009-01-15 Ottto Bock Healthcare Ip Gmbh & Co. Kg Finger and hand prosthesis
JP2010110846A (en) * 2008-11-05 2010-05-20 Panasonic Corp Robot hand and control device used for the same
US20110068595A1 (en) * 2009-09-22 2011-03-24 Gm Global Technology Operations, Inc. Robotic finger assembly

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KR102004623B1 (en) 2019-07-26
US20160052142A1 (en) 2016-02-25
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US9446513B2 (en) 2016-09-20
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US20160052130A1 (en) 2016-02-25
US9469027B2 (en) 2016-10-18
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WO2016032976A1 (en) 2016-03-03
CN106573374A (en) 2017-04-19
US20160052143A1 (en) 2016-02-25
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KR20170047238A (en) 2017-05-04
JP2017525578A (en) 2017-09-07

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