CN103921623A - Intelligent trundle with freely rotating function - Google Patents
Intelligent trundle with freely rotating function Download PDFInfo
- Publication number
- CN103921623A CN103921623A CN201310008695.3A CN201310008695A CN103921623A CN 103921623 A CN103921623 A CN 103921623A CN 201310008695 A CN201310008695 A CN 201310008695A CN 103921623 A CN103921623 A CN 103921623A
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- CN
- China
- Prior art keywords
- wheel
- wheel hub
- madial wall
- brake shoe
- detent
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- Legal status (The legal status 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 status listed.)
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Abstract
The invention relates to an intelligent trundle with a freely rotating function. The intelligent trundle comprises a wheel portion and a braking portion, the wheel portion is provided with a wheel hub which can be in a rotatable axle connection with a wheel axle after a bearing is inserted into the wheel axle, the braking portion is in the rotatable axle connection with the wheel axle, thereby, the braking portion is in contact with the inner side wall of the wheel hub in a stopped state to provide braking force for a wheel, when the wheel rolls, contact of the braking portion with the inner side wall of the wheel hub is removed so as to relieve the braking force on the wheel, and when an unpowered conveyor with the wheel stops, the braking portion is in contact with the inner side wall of the wheel hub so as to provide the braking force. Therefore, when the unpowered conveyor stops, the braking force can be generated even without operation of a user, using conveniences are improved, rolling which is not required by the user can be prevented, and the safety of the unpowered conveyor is remarkably improved.
Description
Technical field
The present invention relates to not possess the wheel of the conveyer of propulsive effort, be specifically related to prevent under halted state the rotation irrelevant with conveyer's intention, thereby improve the intelligent castor with the function of rotating freely of safety.
Background technology
Generally speaking, the unpowered conveyers such as perambulator, hand barrow, in order to reduce loading in transit, possess lightweight small wheels (Wheel or Caster).
The unpowered conveyer that possesses small wheels of this type of prior art, does not possess other drg, in the time of therefore need maintaining halted state, in order to prevent the rotation of wheel, possesses brake gear.
Brake gear described above is divided into be carried out by user's bearing circle operation the brake gear failing and is installed on castor and can maintains the brake gear of the halted state under halted state when driving.
The example of unpowered conveyer of the prior art of brake function is carried out in bearing circle operation by user, the Korea S's login utility model of can giving an example announce No. 20-210491 ' drg perambulator '.
The perambulator of above-mentioned prior art, the brake band centering control ring arranging on brake band is arranged to left and right brake handle central authorities, a side that connects brake handle band at this place, and opposite side is fixed on the brake operating shaft being arranged on brake handle, thereby, catch left and right sides brake handle simultaneously or only catch a side handle, can both make brake strip operate simultaneously, and can prevent that brake band is wound around.
And, directly be installed on castor and carry out an example of the prior art of brake function, No. 2010-0072442nd, the Korea S's publication of can giving an example ' brake for castor, it consists of identical shaped Rotary District setting up and down and upper decline district, described Rotary District is rotated by the manipulation lever that turns round, and decline district and depression bar is declined, and exert pressure to wheel, rotational force by described running lever declines depression bar, presses thus fixedly wheel.
That is, above-mentioned prior art in order to maintain the halted state of unpowered conveyer, while stopping, all needing the other brake gear on the wheel of castor etc. to operate and become halted state at every turn, therefore very loaded down with trivial details.
And, in dip plane etc., while brake gear not being operating as to halted state as user, can there is safety misadventure in the unpowered conveyer of prior art.
And the brake gear of the unpowered conveyer of above-mentioned prior art, has and makes to carry out the problem that the structure of brake function becomes complicated.
Summary of the invention
Thereby, the present invention proposes in order to solve the problem of above-mentioned prior art, it is a kind of when unpowered conveyer stops that its object is to provide, to wheel, automatically give braking force, and in the movement of unpowered conveyer, can automatically terminate the intelligent castor with the function of rotating freely of the braking force that gives wheel.
Technical solution of the present invention is
In order to achieve the above object, the intelligent castor with the function of rotating freely of the present invention, is characterized in that, comprising: wheel portion, and possess at wheel shaft and insert bearing is installed, and the wheel hub that rotatably carries out axle connection; Detent, rotatably carries out axle with described wheel shaft and connects, thereby, under halted state, contact and give braking force to wheel with described wheel hub madial wall, when the rolling action of wheel, remove contacting between the madial wall with wheel hub, and the braking force of releasing wheel.
Described detent comprises: brake shoe, one end is articulated with described wheel shaft, rotatably be arranged between described wheel hub madial wall and described axle, so that under the halted state of wheel, contact with described wheel hub madial wall, and give braking force to wheel, during the rolling action of wheel, remove contacting between the madial wall with wheel hub, and the braking force of releasing wheel; Elastic body, it is combined with described wheel shaft and described brake shoe, so that when the halted state of wheel, makes described brake shoe be positioned at the direction vertical with the direction of principal axis of described wheel shaft.
Described brake shoe also comprises: detent bumps, it protrudes and contact to wheel hub madial wall direction, so that easily contact and remove contact with wheel hub with the contact surface of described wheel hub madial wall.
Described detent bumps consists of the material different from described brake shoe, so that the friction force between increase and wheel hub madial wall.
Described detent also comprises carrier ring, it is combined with the axle of described wheel shaft, the hinged described brake shoe of lateral surface with described wheel shaft end in opposite directions, and in conjunction with being formed with described elastic body, this elastic body respectively described in elastic support each both sides of brake shoe and with each hinged both sides of described carrier ring.
Described carrier ring also comprises elastic supporting part, and its protrusion is formed at the both sides of the position hinged with described brake shoe.
In the both sides of described wheel hub, be combined with a pair of described detent with the both sides of described wheel shaft, so that the wheel hub madial wall contact forming in the both sides of described wheel hub respectively.
Invention effect
The intelligent castor with the function of rotating freely of the present invention with said structure, when user's walking machine, the unpowered conveyer that holds power car, hand barrow etc. become halted state, the detent bumps of brake shoe maintains the state contacting with wheel hub madial wall, thereby braking force can be provided.Thus, when the stopping of unpowered conveyer, prevent the rotation of the wheel irrelevant with user's intention, thereby improve the safety under the halted state of unpowered conveyer.This safety improves effect, when user handles unpowered conveyer in dip plane, prevents that the aspect of rolling movement of loath unpowered conveyer is more outstanding.
And, when the unpowered conveyer of the present invention becomes halted state, by brake shoe, automatically give braking force, therefore the walking machine of prior art, when holding power car, hand barrow etc. and stopping unpowered conveyer in dip plane, without the other brake snap close operation of castor brake etc., therefore significantly improved user's ease of use.
And the drg of the braking force when providing the unpowered conveyer of the present invention to become halted state, than the remarkable simplification of prior art, therefore can provide the number of components that reduces drg, the effect that can save thus cost of production.
Accompanying drawing explanation
Fig. 1 is for preventing from rotating freely according to an embodiment of the invention the right flank block diagram of wheel;
Fig. 2 is the left surface exploded perspective view of the wheel (100) of Fig. 1;
Fig. 3 is the right flank exploded perspective view of the wheel (100) of Fig. 1;
Fig. 4 is the driving condition figure that stops brake action of the brake shoe (55) of the halted state of the wheel (100) for execution graph 1;
Fig. 5 is for the driving condition figure of braking releasing effect during direction rotation between the inverse time of the wheel (100) of execution graph 1;
Fig. 6 is for the driving condition figure of the braking releasing effect in clockwise direction when rotation of the wheel (100) of execution graph 1.
(description of reference numerals)
100,100A: wheel, 110: wheel portion, 10: elasticity wheel 20: wheel hub,
23: wheel hub madial wall 30: wheel shaft, 40: bearing, 50: detent,
50A: the 1st detent, 50B: the 2nd detent 51: carrier ring, 52: hinged support portion,
53: elastic supporting part, 55: brake shoe 56: detent bumps, 57: hinge axis,
59: elastic body
The specific embodiment
Referring to the accompanying drawing that shows embodiments of the invention, the present invention will be described in more detail.
Fig. 1 is for having according to an embodiment of the invention the right flank block diagram of the intelligent castor of the function of rotating freely; Fig. 2 is the left surface exploded perspective view of the wheel (100) of Fig. 1; Fig. 3 is the right flank exploded perspective view of the wheel (100) of Fig. 1.
As Fig. 1 to Fig. 3, described wheel (100) comprises possessing the wheel portion (50) that is formed with the wheel hub (20) of the elasticity wheel (100) that carries out axle connection at the upper insertion installation bearing of wheel shaft (30) at outer peripheral face; The detent (50) that possesses the brake shoe (55) of being rotatably combined with wheel shaft (30).
Described wheel portion (110), bearing (40) axle is connected on wheel shaft (30), wheel hub (20) axle is connected in the position of bearing (40) afterwards, thus, wheel hub (20) can be rotated centered by wheel shaft (30).
The two sides of described wheel hub (20) form by cylindrical shape is recessed, have respectively wheel hub madial wall (23) in both sides.Described wheel hub madial wall (23) also can make the two sides of wheel hub (20) by cylindrical shape, be protruded and form.Described wheel hub madial wall (23) is carried out the function of the brake disk surface be equivalent to produce Braking, while stopping with the unpowered conveyer of box lunch, prevents the rotation of wheel (100).
Described detent (50) is included in the both sides of bearing (40) and carries out with described wheel shaft (30) carrier ring (51) that axle connects; One end and carrier ring (51) are hinged, and other end arranges and the brake shoe (55) of rotation to wheel hub madial wall (23); For brake shoe (55) is placed in, the elastic body of elastic force (59) is provided with wheel shaft (30) vertical direction and forms.
In the outer axial face of described carrier ring (51), vertically protruding to be formed with the direction of principal axis of wheel shaft (30) makes an end of brake shoe (55) by the hinged hinged support portion (52) of hinge axis (57).The both sides of described hinged support portion (52) are protruded and are formed with a pair of elastic supporting part (53).
Described brake shoe (55) and center wheel hub madial wall (23) forward surface, be formed with when being positioned at the position vertical with wheel shaft (30) detent bumps (56) contacting with wheel hub madial wall (23).Described detent bumps (56) is formed by friction means, so that can give the braking to the rotation of wheel hub (20) under halted state, brake shoe (55) except detent bumps (56), in order to make easily to rotate by hinge axis (57), and the friction force when contacting with wheel hub madial wall reduce minimum, can be by separated formation of low friction means of PP etc.
As Fig. 1 to Fig. 3, the brake shoe of described formation (55), one end and hinged support portion (52) are hinged, combination is carried out with the other end of the elastic body (59) of elastic supporting part (53) combination respectively with one end respectively in both sides, and can reset into the position with wheel shaft (30) vertical direction when carrier ring (51) is rotatably combined and stops.In an embodiment of the present invention, illustrate the formation that described elastic body (59) is connected with the both sides of brake shoe (55), but described elastic body (59), can have with brake shoe (55) and be integrally formed, thereby elastic force is provided, makes brake shoe (55) be positioned at all the time single formation or a plurality of formation of the position vertical with wheel shaft (30).That is, described elastic body (59) can be formed by various shapes such as Compress Spring, coil tension spring, coil spring, wire spring, laminated springs, to the elastic force that can make brake shoe (55) be positioned at the position vertical with wheel shaft (30) is provided.
Wheel (100), above inserts bearing (40) afterwards at wheel shaft (30) as constituted above, and wheel hub (20) carries out axle with bearing (40) and connects.Afterwards, by the carrier ring (51) in connection with having brake shoe (55) and an elastic body (59) and wheel shaft (30), carry out combination, carry out combination with wheel (100) and install, make detent (50) be positioned at wheel shaft (30) and wheel hub madial wall (23) between region.
Now, described carrier ring (51) is combined with described wheel shaft (30) interference-fit type or is fixed by other anchor fittings such as pins, and support ring is not rotated with respect to wheel shaft (30).
As described above, with the detent (50) of wheel (100) combination, as shown in Figure 1, at a side and the wheel shaft (30) of wheel (100), carry out combination.Unlike this, as shown in Figures 2 and 3, the two sides that also can be produced on wheel hub (20) form respectively the 1st detent (50A) and the 2nd detent (50B) and the wheel (100A) of the other structure of combination.
Below, with reference to Fig. 4 to Fig. 6, the function of the braking force that gives to prevent that wheel of the present invention (100) is rotated under halted state and the brake off power function under slew mode are described.
Fig. 4 is the driving condition figure that stops brake action of the brake shoe (55) of the halted state of the wheel (100) for execution graph 1; Fig. 5 is for the driving condition figure of braking releasing effect during direction rotation between the inverse time of the wheel (100) of execution graph 1; Fig. 6 is for the driving condition figure of the braking releasing effect in clockwise direction when rotation of the wheel (100) of execution graph 1.
As shown in Figure 4, when the unpowered conveyer (not shown) of applicable wheel of the present invention (100) becomes halted state, be positioned at the elastic body (59) of both sides of brake shoe (55) by the elastic force pulling to two directions is provided, make brake shoe (55) be positioned at the position vertical with wheel shaft (30).Thus, make detent bumps (56) be contacted with wheel hub madial wall (23), and can carry out braking function.Thereby, make unpowered conveyer that the loath movement of user not occur.
From above-mentioned different, when the unpowered conveyer of user's tethered sliding, make wheel (100) rotation, thereby, as shown in Figures 5 and 6, by the friction force between detent bumps (56) and wheel hub madial wall (23), brake shoe (55) is centered by hinge axis (57), hand of rotation to wheel (100 (100A)) is rotated, contacting between brake off projection (56) and wheel hub madial wall (23), brake off power, makes wheel (100) freely carry out rolling movement thus.
As mentioned above, wheel of the present invention, when unpowered conveyer becomes halted state, automatically gives braking force, and when unpowered conveyer moves, automatically terminates the braking force of wheel (100).Thereby, can improve the convenience that utilizes of unpowered conveyer of the present invention, also significantly improved and has utilized safety simultaneously.
Claims (7)
1. an intelligent castor with the function of rotating freely, is characterized in that, comprising:
Wheel portion, possesses at wheel shaft and inserts the wheel hub of bearing being installed and rotatably being carried out axle connection;
Detent, rotatably carries out axle with described wheel shaft and connects, thereby, under halted state, contact and give braking force to wheel with described wheel hub madial wall, when there is the rolling action of wheel, by removing contacting between the madial wall with wheel hub, and the braking force of releasing wheel.
2. the intelligent castor with the function of rotating freely according to claim 1, is characterized in that,
Described detent comprises:
Brake shoe, one end is articulated with described wheel shaft, rotatably be arranged between described wheel hub madial wall and described axle, so that under the halted state of wheel, contact with described wheel hub madial wall, and give braking force to wheel, when there is the rolling action of wheel, by removing contacting between the madial wall with wheel hub, and the braking force of releasing wheel;
Elastic body, it is combined with described wheel shaft and described brake shoe, so that when the halted state of wheel, makes described brake shoe be positioned at the direction vertical with the direction of principal axis of described wheel shaft.
3. the intelligent castor with the function of rotating freely according to claim 2, is characterized in that,
Described brake shoe also comprises detent bumps, and it protrudes and contact to wheel hub madial wall direction, so that easily contact and remove contact with wheel hub with the contact surface of described wheel hub madial wall.
4. the intelligent castor with the function of rotating freely according to claim 3, is characterized in that,
Described detent bumps consists of friction means, so that the friction force between increase and wheel hub madial wall.
5. the intelligent castor with the function of rotating freely according to claim 3, is characterized in that,
Described detent also comprises carrier ring,
It is combined with the axle of described wheel shaft, the hinged described brake shoe of lateral surface with described wheel shaft end in opposite directions, and in conjunction with being formed with described elastic body, this elastic body respectively described in elastic support each both sides of brake shoe and with each hinged both sides of described carrier ring.
6. the intelligent castor with the function of rotating freely according to claim 5, is characterized in that,
Described carrier ring also comprises elastic supporting part, and its protrusion is formed at the both sides of the position hinged with described brake shoe.
7. according to a certain the described intelligent castor with the function of rotating freely in claim 1 to 6, it is characterized in that,
Described detent, in the both sides of described wheel hub, is combined with a pair of described detent with the both sides of described wheel shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008695.3A CN103921623A (en) | 2013-01-10 | 2013-01-10 | Intelligent trundle with freely rotating function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310008695.3A CN103921623A (en) | 2013-01-10 | 2013-01-10 | Intelligent trundle with freely rotating function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103921623A true CN103921623A (en) | 2014-07-16 |
Family
ID=51140120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310008695.3A Pending CN103921623A (en) | 2013-01-10 | 2013-01-10 | Intelligent trundle with freely rotating function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103921623A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3532301A4 (en) * | 2016-10-31 | 2020-12-02 | Maidbot, Inc. | Wheel assembly, methods, and applications |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2253824A (en) * | 1939-02-03 | 1941-08-26 | Townsend Charles Ralph | Caster for application to vehicles |
| US5244062A (en) * | 1989-04-27 | 1993-09-14 | Scantrolley Aps | Wheel and brake device for means of transportation |
| US5465986A (en) * | 1993-05-24 | 1995-11-14 | Macrae; Elwyn F. | Wheel restraining device for a shopping cart or a portable vehicle |
| CN1171854A (en) * | 1994-12-30 | 1998-01-28 | 阿克托戴恩通用股份有限公司 | Anti-theft vehicle system |
| KR19990032143U (en) * | 1997-12-31 | 1999-07-26 | 오상수 | Drum brake of car brake system |
| CN1295521A (en) * | 1998-03-11 | 2001-05-16 | 斯马特卡特公司 | Cart automatic brake mechanism |
| US20100263164A1 (en) * | 2009-04-20 | 2010-10-21 | Ching-Sung Lin | Caster with a Brake Structure |
-
2013
- 2013-01-10 CN CN201310008695.3A patent/CN103921623A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2253824A (en) * | 1939-02-03 | 1941-08-26 | Townsend Charles Ralph | Caster for application to vehicles |
| US5244062A (en) * | 1989-04-27 | 1993-09-14 | Scantrolley Aps | Wheel and brake device for means of transportation |
| US5465986A (en) * | 1993-05-24 | 1995-11-14 | Macrae; Elwyn F. | Wheel restraining device for a shopping cart or a portable vehicle |
| CN1171854A (en) * | 1994-12-30 | 1998-01-28 | 阿克托戴恩通用股份有限公司 | Anti-theft vehicle system |
| KR19990032143U (en) * | 1997-12-31 | 1999-07-26 | 오상수 | Drum brake of car brake system |
| CN1295521A (en) * | 1998-03-11 | 2001-05-16 | 斯马特卡特公司 | Cart automatic brake mechanism |
| US20100263164A1 (en) * | 2009-04-20 | 2010-10-21 | Ching-Sung Lin | Caster with a Brake Structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3532301A4 (en) * | 2016-10-31 | 2020-12-02 | Maidbot, Inc. | Wheel assembly, methods, and applications |
| US11485174B2 (en) | 2016-10-31 | 2022-11-01 | Tailos, Inc. | Wheel assembly, methods, and applications |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140716 |