US3707303A - Means for securing an insert to a base piece - Google Patents

Means for securing an insert to a base piece Download PDF

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US3707303A
US3707303A US122947A US3707303DA US3707303A US 3707303 A US3707303 A US 3707303A US 122947 A US122947 A US 122947A US 3707303D A US3707303D A US 3707303DA US 3707303 A US3707303 A US 3707303A
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Prior art keywords
bore
shank
base piece
punch
opposite side
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US122947A
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Nello J Petri
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PETRI JOHNSON Inc
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PETRI JOHNSON Inc
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/165—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with balls or rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/10—Details of socket shapes
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17128—Self-grasping
    • Y10T279/17171—One-way-clutch type
    • Y10T279/17188—Side detent
    • Y10T279/17196—Ball or roller
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/60—Biased catch or latch
    • Y10T403/602—Biased catch or latch by separate spring
    • Y10T403/604—Radially sliding catch

Definitions

  • the invention as disclosed solves the problem of securing an insert element such as a punch to a larger base piece such as a punch ring.
  • the invention is particularly applicable to a rotary punch of the type having a rotating punch ring with punch elements removably secured around the periphery of said ring.
  • quick releasable means is provided for fixedly but removably securing the shank of a punch or the like within a bore in the punch ring.
  • the cross sectional contour of the shank or the bore is formed so that the shank engages the bore at two points in cross section.
  • the shank is forced against said two points by means of a spring pressed ball so that the insert is urged simultaneously against the bottom of the bore and against the two points.
  • I-Ieretofore paper punches of the type which include a ring rotatably supported relative to a moving web of paper have been provided with replaceable punches which are fixedly secured in radially outwardly opening bores in the ring periphery.
  • replaceable punches which are fixedly secured in radially outwardly opening bores in the ring periphery.
  • the procedure in the past has been to employ a set screw threadedly secured within the ring and which screw may be tightened against the shank of the punch. Since such punches must be replaced quite frequently it has been a time consuming operation to release each one of the screws securing the punch elements and then tighten such screws after the new punch elements have been replaced.
  • the main object of the present invention is the provision of means for fixedly securing punch elements within the periphery of a rotatable punch ring without the use of set screws and similar devicesrequiring manual loosening and tightening.
  • Another object of the invention is the provision of a relatively simple holding device which not only secures the removableelement in place relative to the base piece but also insures a high degree of accuracy in locating the element relative to the bore within which it is received thus adding to the life of the punch.
  • FIG. l' is a fragmentary side view of a punch ring showing a plurality of punch elements in the periphery thereof.
  • FIG. 2 is a greatly enlarged cross sectional view of the punch ring showing the insert in place and the holding means therefor.
  • FIG. 3 is a transverse cross .sectional view through the bore showing the shank or the punch element received therein.
  • the clearance between the shank of the punch element and the bore in which it is received is greatly exaggerated for clarity.
  • FIG. 4 is a view similar to FIG. 3 showing a modified form of the invention.
  • FIG. 5 is a view similar to FIG. 3 showing another modified form of the invention.
  • a punching apparatus for punching holes in a web of paper or the like.
  • Such an apparatus includes a punch ring generally designated 1 carried by a shaft 2 which is rotatably supported in suitable bearings (not shown).
  • the punches 3 Upon rotation of the ring 1 over a moving web of paper the punches 3 on the periphery thereof cooperate with dies on a die ring (not shown) to punch holes in the paper at predetermined spaced points along the length of the latter. After a period of use the punches 3 become worn and must be replaced.
  • the periphery of ring 1 is provided with a plurality of radially extending outwardly opening bores 5 each of which is provided with a bottom 6.
  • the punch generally designated 3 is provided with an elongated shank portion 7 which may be'a fe'w thousandths of an inch less in diameter than the diameter of bore 5.
  • a transversely extending opening 9 is drilled to receive a ball 10 and a strong compression spring 11. All of the springs may be secured in place by a single annular spring retainer 12 fixed to ring 1 by bolts (not shown).
  • the spring 11 urges the ball 10 toward the adjacent side of the shank 7 and the inner end of hole 9 may be made frustoconical or spherical as indicated at 14 to retain the ball within the hole 9 when the shank 7 is removed.
  • the ball 10 cooperates with a V-shaped groove 15 extending around the periphery of shank 7 and having a pair of straight intersecting sides l6, 17.
  • the length of shank 7 and the location of hole 9 is predetermined so that the ball 10 engages the camming surface 17 thus urging the inner end of shank 7 against the bottom 6 of the bore.
  • the force of the spring 11 also urges the shank 7 against the side of the bore 5 that is opposite the ball 10.
  • said opposite side of the bore 5 is enlarged, preferably by milling, as indicated at 19.
  • the depth of such enlargement 19 need not be very great but merely sufficient to cause the shank 7 to engage the inner side of the bore 5 along lines A and B (FIG.
  • the inner end of the shank 7 may be tapered as indicated at 21 to facilitate the insertion of the shank within the bore.
  • the three point support noted above is of course actually brought about by the engagement of the shank 7 along two lines and the point at which the ball l0 engages the camming surface 17.
  • the term three point support as used herein is not exactly accurate but describes the important principle that by engaging the shank -7 at three different locations optimum stability is achieved.
  • the efficacy of the structure is further enhanced by the presence of groove which divides each of the lines of engagements A, B into two spaced parts so that there are, in effect, four lines of engagement on one side and point engagement on the opposite side.
  • FIG.'4 Another form of the invention which also provides the so called three point support is shown in FlG.'4 wherein the ring 1' is provided with a side 30 spaced from the center line of the bore 5' a distance less than the radius ofthe latter so that the bore breaks out through said side 30.
  • the shank 7 engages the inner side of the bore at points A and B thus achieving a comparable stable support for the shank 7.
  • FIG. 5 An analogous structure is shown in FIG. 5 wherein the ring 1" is provided with a bore 5 of circular cross section and the shank 7' is formed to provide a flat 32 along the side opposite the side engaged by the ball 10.
  • the stability of the punch 3 relative to the ring 1 is further enhanced by the fact that the ball 10 urges the shank 7 against the bottom of the bore. Since the punching forces acting on the shank 7 tend to tilt it in a plane normal to the plane of the paper (FIG. 2) the cooperation of the inner end of the shank '7 with the bottom 6 also assists in resisting such tilting.
  • said base piece being formed with a bore opening outwardly of one face thereof
  • said element including a shank adapted to be received in said bore through the open end thereof, spring urged force means on one side of said bore urging said shank transversely of said bore toward the opposite side thereof,
  • said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side,
  • the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece,
  • said bore being provided with a bottom rigid with said base piece and said shank being provided with a camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged toward said opposite side,
  • said bore and shank being circular in cross section and said bore being enlarged at the side opposite said force means to provide a pair of junctures at said points extending axially of said bore.
  • said base piece being formed with a bore opening outwardly of one face thereof
  • said element including a shank adapted to be received in said bore through the open end thereof,
  • said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side,
  • said bore being provided with a bottom rigid with said base piece and said shank being provided with a camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged toward said opposite side,
  • the radius of said bore being less than the distance from the center of the bore to another face of said base piece whereby the bore intersects said other face to provide said points of engagement.
  • said base piece being formed with a bore opening outwardly of one face thereof
  • said element including shank adapted to be received in said bore through the open end thereof,
  • spring urged force means having a substantially spherical camming surface on one side of said bore urging said shank transversely of said bore toward the opposite side thereof,
  • said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side,
  • the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece,
  • said bore being provided with a bottom rigid with said base piece and said shank being provided with an angled camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged against said opposite side,
  • said camming surface being formed at such an angle so as to provide a component of the force of said force means urging said shank against said opposite side which is greater than the component urging said shank against said bottom.

Abstract

Means for removably securing an insert element to a larger base piece. The invention as disclosed solves the problem of securing an insert element such as a punch to a larger base piece such as a punch ring. The invention is particularly applicable to a rotary punch of the type having a rotating punch ring with punch elements removably secured around the periphery of said ring. In lieu of the usual set screw method of securing the punches to the punch ring quick releasable means is provided for fixedly but removably securing the shank of a punch or the like within a bore in the punch ring. The cross sectional contour of the shank or the bore is formed so that the shank engages the bore at two points in cross section. The shank is forced against said two points by means of a spring pressed ball so that the insert is urged simultaneously against the bottom of the bore and against the two points. The ''''three point support'''' thus achieved insures not only optimum stability of the insert with respect to the punch ring but also permits extremely accurate positioning of the punch relative to the punch ring.

Description

United States Patent Petri [54] MEANS FOR SECURING AN INSERT TO A BASE PIECE [72] Inventor: Nello J. Petri, San Francisco, Calif.
[73] Assignee: Petri-Johnson, Inc., San Jose, Calif.
[22] Filed: March 10, 1971 [21] Appl. No.: 122,947
Primary Examiner-Andrew V. Kundrat Attorney-Gordon Wood 51 3,707,303 [451 Dec. 26, 1972 57 I ABSTRACT Means for removably securing an insert element to a larger base piece. The invention as disclosed solves the problem of securing an insert element such as a punch to a larger base piece such as a punch ring. The invention is particularly applicable to a rotary punch of the type having a rotating punch ring with punch elements removably secured around the periphery of said ring. In lieu of the usual set screw method of securing the punches to the punch ring quick releasable means is provided for fixedly but removably securing the shank of a punch or the like within a bore in the punch ring. The cross sectional contour of the shank or the bore is formed so that the shank engages the bore at two points in cross section. The shank is forced against said two points by means of a spring pressed ball so that the insert is urged simultaneously against the bottom of the bore and against the two points. The.three point support thus achieved insures not only optimum jstability of the insert with respect to the punch ring but also permits extremely accurate positioning of the punch relative to the punch ring.
3 Claims, 5 Drawing Figures PATENTEDUEEZS 1912 I 3,707,303
MEANS FOR SECURING AN INSERT TO A BASE PIECE This invention relates to means for accurately and firmly positioning a replaceable element with respect to a larger member or base piece. The invention will be described with respect to replaceable punch elements which are insertedin the periphery of a rotatable punch ring for the purpose of punching holes in a paper strip or the like. However it will be apparent that the invention herein'disclosed is applicable to many other situations wherein it is desired to fixedly secure an element with respect to a base piece so that such element may be removed and a similar element replaced with a minimum loss of time.
I-Ieretofore paper punches of the type which include a ring rotatably supported relative to a moving web of paper have been provided with replaceable punches which are fixedly secured in radially outwardly opening bores in the ring periphery. In order to fixedly secure said punches relative to the ring the procedure in the past has been to employ a set screw threadedly secured within the ring and which screw may be tightened against the shank of the punch. Since such punches must be replaced quite frequently it has been a time consuming operation to release each one of the screws securing the punch elements and then tighten such screws after the new punch elements have been replaced. The reason for employing such screw means for holding the punch elements is that a high degree of accuracy is desired in punching apparatus and-the set screws provide means for not only holding the punch element in a fixed position with reference to the punch ring bore but, since the punch element is urged against one side of the bore a high degree of accuracy is ensured.
The main object of the present invention is the provision of means for fixedly securing punch elements within the periphery of a rotatable punch ring without the use of set screws and similar devicesrequiring manual loosening and tightening.
Another object of the invention is the provision of a relatively simple holding device which not only secures the removableelement in place relative to the base piece but also insures a high degree of accuracy in locating the element relative to the bore within which it is received thus adding to the life of the punch.
Other objects and advantages will be apparent from the following specification and from the drawings:
FIG. l'is a fragmentary side view of a punch ring showing a plurality of punch elements in the periphery thereof.
FIG. 2 is a greatly enlarged cross sectional view of the punch ring showing the insert in place and the holding means therefor.
FIG. 3 is a transverse cross .sectional view through the bore showing the shank or the punch element received therein. The clearance between the shank of the punch element and the bore in which it is received is greatly exaggerated for clarity.
FIG. 4 is a view similar to FIG. 3 showing a modified form of the invention.
FIG. 5 is a view similar to FIG. 3 showing another modified form of the invention.
In detail, and first with reference to FIG. 1, the invention will be disclosed with reference to a punching apparatus for punching holes in a web of paper or the like. Such an apparatus includes a punch ring generally designated 1 carried by a shaft 2 which is rotatably supported in suitable bearings (not shown). Upon rotation of the ring 1 over a moving web of paper the punches 3 on the periphery thereof cooperate with dies on a die ring (not shown) to punch holes in the paper at predetermined spaced points along the length of the latter. After a period of use the punches 3 become worn and must be replaced. Although such replaceable punches are relatively inexpensive the operation of removing the old punches and replacing them with new ones is a time consuming one since it is required to release and tighten set screws for holding such elements in place. The present invention is not concerned with the punching operation itself but is concerned merely with the step of removing the old punch elements and replacing them with new ones.
' As best seen in FIG. 2 the periphery of ring 1 is provided with a plurality of radially extending outwardly opening bores 5 each of which is provided with a bottom 6. The punch generally designated 3 is provided with an elongated shank portion 7 which may be'a fe'w thousandths of an inch less in diameter than the diameter of bore 5. On one side of the bore 5 a transversely extending opening 9 is drilled to receive a ball 10 and a strong compression spring 11. All of the springs may be secured in place by a single annular spring retainer 12 fixed to ring 1 by bolts (not shown). The spring 11 urges the ball 10 toward the adjacent side of the shank 7 and the inner end of hole 9 may be made frustoconical or spherical as indicated at 14 to retain the ball within the hole 9 when the shank 7 is removed.
The ball 10 cooperates with a V-shaped groove 15 extending around the periphery of shank 7 and having a pair of straight intersecting sides l6, 17. As seen in FIG. 2 the length of shank 7 and the location of hole 9 is predetermined so that the ball 10 engages the camming surface 17 thus urging the inner end of shank 7 against the bottom 6 of the bore. The force of the spring 11 also urges the shank 7 against the side of the bore 5 that is opposite the ball 10. As best seen in FIG. 3 said opposite side of the bore 5 is enlarged, preferably by milling, as indicated at 19. The depth of such enlargement 19 need not be very great but merely sufficient to cause the shank 7 to engage the inner side of the bore 5 along lines A and B (FIG. 3) extending longitudinally of the bore. By this structure it will be apparent that the shank 7 is subjected to a three point support in the sense that the ball 10 and the lines of engagement A, B are the only external means in engagement with the punch shank 7 (neglecting the effect of the bottom 6 of the bore on the inner end of the shank). It will be understood that the clearances between the shank 7 and the bore 5 and the enlargement 19 are exaggerated in FIG. 3 for clarity. Actually in practice only a few thousandths of an inch clearance is required between the shanks 7 and the bore 5 in order to simplify the insertion and removal of the shank 7 relative to the bore 5.
It has been found that the desired stability of the shank 7 relative to the drum 1 cannot be achieved merely by urging the shank against the opposite cylindrical side of the bore 5. In other words if the lines of engagement indicated at A and B are not clearly defined as by providing the enlargement 19 the shank 7 tends to rock within the bore 5 thus making it impossible to keep the punch located with the desired degree of accuracy.
The inner end of the shank 7 may be tapered as indicated at 21 to facilitate the insertion of the shank within the bore.
The three point support noted above is of course actually brought about by the engagement of the shank 7 along two lines and the point at which the ball l0 engages the camming surface 17. Thus the term three point support" as used herein is not exactly accurate but describes the important principle that by engaging the shank -7 at three different locations optimum stability is achieved. The efficacy of the structure is further enhanced by the presence of groove which divides each of the lines of engagements A, B into two spaced parts so that there are, in effect, four lines of engagement on one side and point engagement on the opposite side.
Another form of the invention which also provides the so called three point support is shown in FlG.'4 wherein the ring 1' is provided with a side 30 spaced from the center line of the bore 5' a distance less than the radius ofthe latter so that the bore breaks out through said side 30. By this structure the shank 7 engages the inner side of the bore at points A and B thus achieving a comparable stable support for the shank 7.
An analogous structure is shown in FIG. 5 wherein the ring 1" is provided with a bore 5 of circular cross section and the shank 7' is formed to provide a flat 32 along the side opposite the side engaged by the ball 10. By this structure it will be apparent that similar supporting lines A", B" are provided so as to effect a situation analogous to that shown in FIG. 3.
The stability of the punch 3 relative to the ring 1 is further enhanced by the fact that the ball 10 urges the shank 7 against the bottom of the bore. Since the punching forces acting on the shank 7 tend to tilt it in a plane normal to the plane of the paper (FIG. 2) the cooperation of the inner end of the shank '7 with the bottom 6 also assists in resisting such tilting.
The very specific description of the invention herein disclosed should not be taken as restrictive as it will be apparent that various modifications in design may be resorted to by those skilled in the art without departing from the scope of the following claims.
I claim:
1. In the combination that includes a base piece and an element secured thereto:
said base piece being formed with a bore opening outwardly of one face thereof,
said element including a shank adapted to be received in said bore through the open end thereof, spring urged force means on one side of said bore urging said shank transversely of said bore toward the opposite side thereof, I
said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side,
the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece,
said bore being provided with a bottom rigid with said base piece and said shank being provided with a camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged toward said opposite side,
said bore and shank being circular in cross section and said bore being enlarged at the side opposite said force means to provide a pair of junctures at said points extending axially of said bore.
2. in the combination that includes a base piece and an element secured thereto: 7
said base piece being formed with a bore opening outwardly of one face thereof,
said element including a shank adapted to be received in said bore through the open end thereof,
spring urged force means on one side of said bore urging said shank transversely of said bore toward the opposite side thereof,
said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side,
the cross sectional. contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece,
said bore being provided with a bottom rigid with said base piece and said shank being provided with a camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged toward said opposite side,
the radius of said bore being less than the distance from the center of the bore to another face of said base piece whereby the bore intersects said other face to provide said points of engagement.
3. in the combination that includes a base piece and an element secured thereto:
said base piece being formed with a bore opening outwardly of one face thereof,
said element including shank adapted to be received in said bore through the open end thereof,
spring urged force means having a substantially spherical camming surface on one side of said bore urging said shank transversely of said bore toward the opposite side thereof,
said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side,
the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece,
said bore being provided with a bottom rigid with said base piece and said shank being provided with an angled camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged against said opposite side,
said camming surface being formed at such an angle so as to provide a component of the force of said force means urging said shank against said opposite side which is greater than the component urging said shank against said bottom.

Claims (3)

1. In the combination that includes a base piece and an element secured thereto: said base piece being formed with a bore opening outwardly of one face thereof, said element including a shank adapted to be received in said bore through the open end thereof, spring urged force means on one side of said bore urging said shank transversely of said bore toward the opposite side thereof, said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side, the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece, said bore being provided with a bottom rigid with said base piece and said shank being provided with a camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged toward said oppoSite side, said bore and shank being circular in cross section and said bore being enlarged at the side opposite said force means to provide a pair of junctures at said points extending axially of said bore.
2. In the combination that includes a base piece and an element secured thereto: said base piece being formed with a bore opening outwardly of one face thereof, said element including a shank adapted to be received in said bore through the open end thereof, spring urged force means on one side of said bore urging said shank transversely of said bore toward the opposite side thereof, said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side, the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece, said bore being provided with a bottom rigid with said base piece and said shank being provided with a camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged toward said opposite side, the radius of said bore being less than the distance from the center of the bore to another face of said base piece whereby the bore intersects said other face to provide said points of engagement.
3. In the combination that includes a base piece and an element secured thereto: said base piece being formed with a bore opening outwardly of one face thereof, said element including shank adapted to be received in said bore through the open end thereof, spring urged force means having a substantially spherical camming surface on one side of said bore urging said shank transversely of said bore toward the opposite side thereof, said shank and bore being formed in cross section to provide two spaced points of engagement between said shank and said bore at said opposite side, the cross sectional contour of said shank being smaller than the cross sectional contour of said bore to provide clearance therebetween whereby the periphery of said shank is engaged only by said force means and said bore at said two points to provide stability of said element relative to said base piece, said bore being provided with a bottom rigid with said base piece and said shank being provided with an angled camming surface acted upon by said spring urged force means to urge said shank against said bottom at the same time it is urged against said opposite side, said camming surface being formed at such an angle so as to provide a component of the force of said force means urging said shank against said opposite side which is greater than the component urging said shank against said bottom.
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FR2495988A2 (en) * 1979-08-03 1982-06-18 Scoa Machine to cut hard fruit esp. pineapple into segments - with pneumatically vibrated toothed blades arranged radially all round fruit
US4362412A (en) * 1979-08-14 1982-12-07 Firma Kunz Maschinen-U. Apparatebau Gmbh Coupling for removably connecting a rod to a driving shaft
US4557124A (en) * 1983-05-10 1985-12-10 Norman Russ Power key turner
DE3431174A1 (en) * 1984-08-24 1986-03-06 Lieder Maschinenbau GmbH & Co KG, 3033 Schwarmstedt DRIVING DEVICE FOR CONTAINERS TO BE PROCESSED IN A FILLING PACKING MACHINE
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US9414870B2 (en) 2003-09-03 2016-08-16 DePuy Synthes Products, Inc. Translatable carriage fixation system
US9463097B2 (en) 2003-02-06 2016-10-11 DePuy Synthes Products, Inc. Intervertebral implant
US9572681B2 (en) 2002-02-19 2017-02-21 DePuy Synthes Products, Inc. Intervertebral implant
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US9867718B2 (en) 2014-10-22 2018-01-16 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US10512548B2 (en) 2006-02-27 2019-12-24 DePuy Synthes Products, Inc. Intervertebral implant with fixation geometry
US11125525B2 (en) * 2019-03-12 2021-09-21 KNS Precision, Inc. Modular quick-change shooting platform feet
US11213984B2 (en) 2017-03-27 2022-01-04 Technocrats Corporation Undercut processing mechanism and molding die assembly
US11345071B2 (en) 2017-04-17 2022-05-31 Technocrats Corporation Retaining unit, and ejection mechanism of molding die assembly including retaining unit
USD959254S1 (en) * 2020-03-26 2022-08-02 Olivier Industrie Nv Accessory for drilling tools
US20220410278A1 (en) * 2021-06-28 2022-12-29 Kennametal Inc. Modular drill and method for using a modular drill

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FR2495988A2 (en) * 1979-08-03 1982-06-18 Scoa Machine to cut hard fruit esp. pineapple into segments - with pneumatically vibrated toothed blades arranged radially all round fruit
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US4557124A (en) * 1983-05-10 1985-12-10 Norman Russ Power key turner
US4587888A (en) * 1984-02-09 1986-05-13 Allied Corporation Extensible piston with breakable or displaceable coupler
US4778045A (en) * 1984-08-24 1988-10-18 Lieder-Mashinenbau GmbH & Co. KG Apparatus for transporting receptacles in filling machines
DE3431174C2 (en) * 1984-08-24 1998-12-17 Lieder Maschinenbau Gmbh & Co Driving device for at least one container to be filled in a filling packaging machine by a filling device
DE3431174A1 (en) * 1984-08-24 1986-03-06 Lieder Maschinenbau GmbH & Co KG, 3033 Schwarmstedt DRIVING DEVICE FOR CONTAINERS TO BE PROCESSED IN A FILLING PACKING MACHINE
US4767337A (en) * 1985-06-18 1988-08-30 Sharp Kabushiki Kaisha Power-connection/car-mounting device
US4921426A (en) * 1985-06-18 1990-05-01 Sharp Kabushiki Kaisha Power-connection/car-mounting device and connection system for a car-mountable apparatus
US4691988A (en) * 1985-11-26 1987-09-08 Tekna Recherche & Developpment Inc. Pulling eye assembly
DE3739060A1 (en) * 1986-11-20 1988-07-14 Reinhold Erich Schmidt Mechanical cylinder closure
US4955749A (en) * 1989-06-19 1990-09-11 Vlatko Panovic Swivel connector
US5011324A (en) * 1990-05-14 1991-04-30 Snap-On Tools Corporation Detent structure having a retaining lip with a smooth continuous outer surface free from stress-concentrating corners
US5746416A (en) * 1993-06-21 1998-05-05 Paylor; Christopher John Adaptor tools and method to expose valve
EP0696685A3 (en) * 1994-08-09 1996-09-25 Salice Arturo Spa Fastening element
US5569123A (en) * 1995-07-18 1996-10-29 Creatchman; Jeff Device for exercising in a doorframe
EP0869034A1 (en) * 1997-04-03 1998-10-07 Happich Fahrzeug-Dachsysteme GmbH Roofrails for vehicles
DE19713772A1 (en) * 1997-04-03 1998-10-08 Happich Fahrzeug Dachsysteme Roof rails for vehicles
US7927076B1 (en) 1997-05-05 2011-04-19 Chien Luen Industries Co., Ltd., Inc. Quick assembly blades for ceiling fans
US7281899B1 (en) 1997-05-05 2007-10-16 King Of Frans, Inc. Quick assembly blades for ceiling fans
US6171059B1 (en) * 1997-05-05 2001-01-09 King Of Fans, Inc. Quick assembly blades for ceiling fans
US7766622B1 (en) 1997-05-05 2010-08-03 Chien Luen Industries Co, Ltd. Inc. Quick assembly blades for ceiling fans
US6802694B2 (en) 1997-05-05 2004-10-12 King Of Fans, Inc. Quick assembly blades for ceiling fans
US6336792B1 (en) 1997-05-05 2002-01-08 King Of Fans, Inc. Quick assembly blades for ceiling fans
US8408876B2 (en) 1997-05-05 2013-04-02 Chien Luen Industries Co., Ltd., Inc. Quick assembly blades for ceiling fans
US5911364A (en) * 1997-07-29 1999-06-15 Wagner Spray Tech Corporation Reversible tip detent
US6053675A (en) * 1998-06-26 2000-04-25 Black & Decker Inc. Quick-acting tool bit holder
US6186693B1 (en) * 1998-12-07 2001-02-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Passive capture joint with three degrees of freedom
WO2001053689A1 (en) * 2000-01-20 2001-07-26 Robert Bosch Gmbh Valve for controlling liquids
US6688610B2 (en) 2000-05-12 2004-02-10 Power Tool Holders Incorporated Chuck with quick change
US7040630B2 (en) 2000-05-12 2006-05-09 Jacobs Chuck Manufacturing Company Chuck with quick change
US7160065B2 (en) 2000-05-12 2007-01-09 Jacobs Chuck Manufacturing Company Chuck with quick change
US6722668B2 (en) 2001-02-14 2004-04-20 Power Tool Holders Incorporated Chuck having quick change mechanism
US6533291B2 (en) 2001-02-14 2003-03-18 Power Tool Holders Incorporated Chuck having quick change mechanism
US6834864B2 (en) 2001-10-24 2004-12-28 Power Tool Holders Incorporated Chuck having quick change mechanism
US20060169118A1 (en) * 2002-02-08 2006-08-03 Wilson Tool International, Inc. Ball-lock insert assemblies
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US10492922B2 (en) 2002-02-19 2019-12-03 DePuy Synthes Products, Inc. Intervertebral implant
US9572681B2 (en) 2002-02-19 2017-02-21 DePuy Synthes Products, Inc. Intervertebral implant
US10660765B2 (en) 2003-02-06 2020-05-26 DePuy Synthes Products, Inc. Intervertebral implant
US10064740B2 (en) 2003-02-06 2018-09-04 DePuy Synthes Products, LLC Intervertebral implant
US9463097B2 (en) 2003-02-06 2016-10-11 DePuy Synthes Products, Inc. Intervertebral implant
US20040200333A1 (en) * 2003-04-14 2004-10-14 Seeley David E. 360 Degree ball lock groove for a tool assembly
US9414870B2 (en) 2003-09-03 2016-08-16 DePuy Synthes Products, Inc. Translatable carriage fixation system
US10368927B2 (en) 2003-09-03 2019-08-06 DePuy Synthes Products, Inc. Bone plate with captive clips
US9220548B2 (en) 2003-09-03 2015-12-29 DePuy Synthes Products, Inc. Bone plate with captive clips
US9408646B2 (en) 2003-09-03 2016-08-09 DePuy Synthes Products, Inc. Bone plate with captive clips
US11696837B2 (en) 2006-02-27 2023-07-11 DePuy Synthes Products, Inc. Intervertebral implant with fixation geometry
US10512548B2 (en) 2006-02-27 2019-12-24 DePuy Synthes Products, Inc. Intervertebral implant with fixation geometry
US10137003B2 (en) 2007-11-16 2018-11-27 DePuy Synthes Products, Inc. Low profile intervertebral implant
US9744049B2 (en) 2007-11-16 2017-08-29 DePuy Synthes Products, Inc. Low profile intervertebral implant
US10543102B2 (en) 2007-11-16 2020-01-28 DePuy Synthes Products, Inc. Low profile intervertebral implant
US11612492B2 (en) 2008-11-07 2023-03-28 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US11517444B2 (en) 2008-11-07 2022-12-06 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US9414935B2 (en) 2008-11-07 2016-08-16 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US9192419B2 (en) 2008-11-07 2015-11-24 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US9402735B2 (en) 2008-11-07 2016-08-02 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US10433976B2 (en) 2008-11-07 2019-10-08 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US10531960B2 (en) 2008-11-07 2020-01-14 DePuy Synthes Products, Inc. Zero-profile interbody spacer and coupled plate assembly
US9039377B2 (en) 2010-08-09 2015-05-26 Lowe's Companies, Inc. Fan assemblies and methods for assembling same
US9241809B2 (en) 2010-12-21 2016-01-26 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US9848992B2 (en) 2010-12-21 2017-12-26 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US11458027B2 (en) 2010-12-21 2022-10-04 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US9220604B2 (en) 2010-12-21 2015-12-29 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US10507117B2 (en) 2010-12-21 2019-12-17 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US20140367048A1 (en) * 2013-07-15 2014-12-18 Bps Engineering, Llc Mechanical assembly for urging the circumferential segments of a tire-building drum into fully-expanded positions
US20140374027A1 (en) * 2013-07-15 2014-12-25 Bps Engineering, Llc Mechanical assembly for urging the circumferential segments of a tire-building drum into fully-expanded positions
US20150137052A1 (en) * 2013-11-15 2015-05-21 Michael T. DeKeuster Removable floor jack saddle
CN109592616A (en) * 2013-11-15 2019-04-09 施耐宝公司 Dismountable Horizontal jack saddle
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US10130492B2 (en) 2014-10-22 2018-11-20 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
US10702394B2 (en) 2014-10-22 2020-07-07 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
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US9867718B2 (en) 2014-10-22 2018-01-16 DePuy Synthes Products, Inc. Intervertebral implants, systems, and methods of use
CN104455046A (en) * 2014-11-10 2015-03-25 江苏荣基重工科技有限公司 Locking disc and locking disc taper sleeves for wind generating set
US11213984B2 (en) 2017-03-27 2022-01-04 Technocrats Corporation Undercut processing mechanism and molding die assembly
US11345071B2 (en) 2017-04-17 2022-05-31 Technocrats Corporation Retaining unit, and ejection mechanism of molding die assembly including retaining unit
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US11125525B2 (en) * 2019-03-12 2021-09-21 KNS Precision, Inc. Modular quick-change shooting platform feet
USD959254S1 (en) * 2020-03-26 2022-08-02 Olivier Industrie Nv Accessory for drilling tools
US20220410278A1 (en) * 2021-06-28 2022-12-29 Kennametal Inc. Modular drill and method for using a modular drill
US11839920B2 (en) * 2021-06-28 2023-12-12 Kennametal Inc. Modular drill and method for using a modular drill

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