US3011534A - Fastener holding and driving device - Google Patents
Fastener holding and driving device Download PDFInfo
- Publication number
- US3011534A US3011534A US836259A US83625959A US3011534A US 3011534 A US3011534 A US 3011534A US 836259 A US836259 A US 836259A US 83625959 A US83625959 A US 83625959A US 3011534 A US3011534 A US 3011534A
- Authority
- US
- United States
- Prior art keywords
- fastener
- tool head
- cam
- work
- members
- Prior art date
- 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.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/02—Arrangements for handling screws or nuts
- B25B23/08—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation
- B25B23/10—Arrangements for handling screws or nuts for holding or positioning screw or nut prior to or during its rotation using mechanical gripping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/001—Article feeders for assembling machines
- B23P19/006—Holding or positioning the article in front of the applying tool
Definitions
- Ciairns. (Cl. 144-32) of a machine including a fastener holding arrangement in accordance with the invention 1
- FIG. 2 is a sectional view of the fastener holding device taken along the plane 22 of FIG.'1, I
- FIG. 3 is an end elevation of a portion of FIG. 1,
- FIGS. 4, 5 and 6 are views similar to FIG. 3 with the machine and the holding device in various operated positions, and
- FIG. 7 is an enlarged, broken-away showing of cam rod end 58 and followers 46.
- the driving or tool head portion of the machine comprising the spindle and the spindle holding bracket together with the spindle driving motor and the head motor.
- Two plates 10 and 12 of the framework are shown as being spaced and mounting an axial drive motor 14.
- This motor 14 being of a conventionally known type, is in the form of an expansible piston andcylinder arrangement'wherein the cylinder 15 is held between plates 11 and 1.2 of the machine and the movable pistontnot shown) has its rod end 17 connected to a bracket 20 which is connected to a movable tool head 21.
- the spindle drive motor 16 is of a commonly known rotary type and is mounted on top of the bracket 20 and extends through an opening in the plate 12.
- the tool head 21 comprises a tubular portion 22 which houses a part of the spindle 18.
- the spindle 18 extends downwardly from the forward end of the tool head 21 and carries a driver D adapted to engage and rotate a fastener F.
- a carrier 26, in the form of a sleeve, is slidably received on the tubular portion 22 and is limited in its upward travel by the bracket portion 26, and in its downward travel by a stop 24 at the end of the tubular housing.
- the carrier 26 has a lug 28 which receives the end of a stroke rod 30.
- the rod 36 extends upwardly through from one another and causes yoke portions 40 and legs 38 to pivot about pivots'36 toward one another.
- Each of the yoke arms 43 of yoke portions 46 is provided with inwardly directed extensions cooperating with each other to form an adjustable cam follower 46.
- At the bottom of the legs 38 are flanges forming feet portions 48 turned in toward one another in face to face relationship, each having a profile to form a keyhole slot type opening 50.
- a cam rod 52 having three stepped'cam surfaces 54', 56 and 58 at its lower extremity extends upwardly through openings in the bracket 20 and the plates 10 and 12.
- the lower end of the rod 52 may be continuously tapered in place of having the three progressively reducing surfaces.
- a collar 62 is spaced upwardly from the bracket 20 and retains one end of a spring 60 which encircles the rod 52 and abuts the top of the bracket at its lower end.
- the spring 60" tends to urge the cam rod 52 upwardly, the upward movement of the rod beinglimited by a second .collar 64 which abuts the bottom of the plate 10 of the machine structure. With the collar 64 abutting the plate started to rotate the driver D.
- the motor 14 is energized spaced from the bottom of the bracket 20.
- the motor 14 With the tool head in the inoperative position,.as shown in FIGS. 1 and 3, the motor 14 is ,deenergized with the bracket 26 drawn upwardly to the'plate 12.
- the spring 34 encircling the stroke rod 30 is-holding the carrier 26 against the stop 24 while the spring 60 hearing against the top of the bracket 26 and the collar 62 urges the cam rod to its uppermost position in which the collar 64 abuts the plate 10 and the collar 66 is spaced from the bottom of the bracket 20 withthe cam follower 4-6 riding on the intermediateqcamsurface 56.
- the motor 16- is to move the tool head 21 downwardly. Due to the force of the spring 34 hearing against the bottom of the bracket 20 and the lug 28, the complete device (carrier 26 and legs 38) movesdownwardly with the bracket 20.
- the cam rod 52 due to the force of the spring 60 maintains its original position until the bracket 29 engages the collar 66. When this position is reached, the carrier 26 and legs 38 have moved relative to the cam rod 52 such that the cam followers 46 have now moved to the smallest cam surface 54. Since the cam surface 54 is smaller in diameter than the cam surface 56, the force of the spring 44 urges the legs '38 towards one another openings in the bracket 20 and the plates 16 and 12.
- the rod 36 has an adjustable collar 32 near the end remote from the lug 28 to limit the movement of the carrier 26.
- a pair of legs 38 is positioned forwardly of carrier 26- in face to face relationship with each other and provided with cooperating profilesv to form an/opening therebetween in axial alignment with spindle 18 to permit spindle 1 8 to move longitudinally between legs 33.
- Each leg 38 extends rearwardly into a yoke portion 40, the latter having opposing arms 41, 43 pivotally connected to carrier 26 by pivot pins or trunnions 36, see FIGS.,13.
- Each of and closes the opening 519 sufficiently to reduce the neck portion thereof to keep the fastener F from sliding out.
- Raising of the tool head 21 including the bracket 26* causes the cam rod 52 to raise while the spring 34 holds the collar 32 in contact with the plate lltl until the carrier 26 again abuts the stop 24.
- the cam rod 52 also is carried upwardly due to the force of the spring 66 until the collar 64 abuts the plate 10. At that point, the cam rod stops and the bracket 29, carrier 26 and legs 38 continue to move upwardly until the bracket engages the plate 12. At that point, the cam followers again have moved on to the cam surface 56 opening the slot 5th to permit the entry of another fastener F.
- a tool head movable toward the work having a fastener driver extending from. the forward end of said tool head adapted to drive fasteners, a sleeve longitudinally movably connected to the tool head and having a stop to limit the forward movement of said sleeve, spring means urging said sleeve in the direction of the work, a pair of members pivotally connected to said sleeve and having portions in face to face relationship and so profiled as to form an opening therebetween for the reception of a fastener, a rod connected to the machine having an abutment spaced from the tool head and a cam portion reducing in size in the direction of the work, said cam portion positioned such to engage said pair of members, said pair of members being movable toward the Work with the tool head and relative to said cam portion to pivot such members toward one another to reduce the opening to hold a fastener therein as said tool head moves to contact said abutment, said rod and said pair of members movable towards
- a tool head movable toward the work having a fastener driver rotatable relative to said tool head and extending from the forward end of said tool head adapted to drive fasteners, a pair of members movably connected to the tool head and having portions in spaced face to face relationship forming an opening for the reception of a fastener, biasing means to constantly urge said portions of said members towards each other, a cam positioned for engaging said members, said members movable in the direction of movement of said tool head and relative to said cam to hold a fastener,
- said cam being movable in the direction of movement of said tool head and movable relative to said members to urge said portions of said members away from each other against the action of said biasing means to release the fastener.
- a tool head movable toward the work having a fastener driver rotatable relative to said tool head and extending from the forwardend of said tool head adapted to drive fasteners, a sleeve carried by the tool head and having limited slidable movement relative to said tool head, spring means urging said sleeve in the direction of the work, a pair of members being pivotally connected to said sleeve and having portions in face to face relationship forming an opening therebetween for the reception of a fastener, a cam memher having a cam portion engaging said pair of members and an abutment spaced from and adapted to contact the tool head, and said cam portion and said pair of members adapted to move relative to one another by the movement of the tool head toward the work to control the relative positions of said portions to hold and release a fastener.
- a tool head movable toward the work having a fastener driver extending from the forward end of said tool head adapted to drive fasteners, a sleeve connected to the tool head, members pivotally connected to said sleeve and having portions in face to face relationship disposed in the path of movement of the fastener driver forming an opening therebetween for the reception of a fastener, biasing means to constantly urge said portions of said members towards each other, a cam member having a' can portion reduced in size in the direction of the work and positioned to engage said members, and said cam portion being adapted to move toward the work with the tool head to pivot said members away from each other against the action of said biasing means to release the fastener.
- a tool head movable toward the work having a fastener driver extending from the forward end of said tool head adapted to drive fasteners, a carrier connected to the tool head, spring means urging said carrier in the direction of the work, a pair of members pivotally connected to said carrier and having portions so profiled as to form an opening therebetween for the reception of a fastener, a cam movable in the direction of movement of said tool head positioned for engaging said members for pivoting the members to .vary the size of the opening, and said members movable in the direction of movement of said tool head and relative References Cited in the file of this patent UNITED STATES PATENTS 434,215 Unbehend Aug.
Description
Dec. 5, 1961 J. B. VILMERDING 3,011,534
FASTENER HOLDING AND DRIVING DEVICE HIS ATTORNEY United States Patent (3 3,011,534' FASTENER HOLDING AND DRIVING DEVICE John B. Vihnerding, Moorestowu, N.J., assignor to Ingersoll-Rand Company, New York, N.Y., a corporation of New Jersey v Filed Aug. 26, W59, Ser. No. 836,259
Ciairns. (Cl. 144-32) of a machine including a fastener holding arrangement in accordance with the invention, 1
FIG. 2 is a sectional view of the fastener holding device taken along the plane 22 of FIG.'1, I
FIG. 3 is an end elevation of a portion of FIG. 1,
FIGS. 4, 5 and 6 are views similar to FIG. 3 with the machine and the holding device in various operated positions, and
FIG. 7 is an enlarged, broken-away showing of cam rod end 58 and followers 46.
Only the driving or tool head portion of the machine is shown comprising the spindle and the spindle holding bracket together with the spindle driving motor and the head motor. Two plates 10 and 12 of the framework are shown as being spaced and mounting an axial drive motor 14. This motor 14, being of a conventionally known type, is in the form of an expansible piston andcylinder arrangement'wherein the cylinder 15 is held between plates 11 and 1.2 of the machine and the movable pistontnot shown) has its rod end 17 connected to a bracket 20 which is connected to a movable tool head 21. The spindle drive motor 16 is of a commonly known rotary type and is mounted on top of the bracket 20 and extends through an opening in the plate 12. The tool head 21 comprises a tubular portion 22 which houses a part of the spindle 18. The spindle 18 extends downwardly from the forward end of the tool head 21 and carries a driver D adapted to engage and rotate a fastener F. A carrier 26, in the form of a sleeve, is slidably received on the tubular portion 22 and is limited in its upward travel by the bracket portion 26, and in its downward travel by a stop 24 at the end of the tubular housing.
' The carrier 26 has a lug 28 which receives the end of a stroke rod 30. The rod 36 extends upwardly through from one another and causes yoke portions 40 and legs 38 to pivot about pivots'36 toward one another. Each of the yoke arms 43 of yoke portions 46 is provided with inwardly directed extensions cooperating with each other to form an adjustable cam follower 46. At the bottom of the legs 38 are flanges forming feet portions 48 turned in toward one another in face to face relationship, each having a profile to form a keyhole slot type opening 50.
A cam rod 52 having three stepped'cam surfaces 54', 56 and 58 at its lower extremity extends upwardly through openings in the bracket 20 and the plates 10 and 12. The lower end of the rod 52 may be continuously tapered in place of having the three progressively reducing surfaces. A collar 62 is spaced upwardly from the bracket 20 and retains one end of a spring 60 which encircles the rod 52 and abuts the top of the bracket at its lower end. The spring 60" tends to urge the cam rod 52 upwardly, the upward movement of the rod beinglimited by a second .collar 64 which abuts the bottom of the plate 10 of the machine structure. With the collar 64 abutting the plate started to rotate the driver D. The motor 14 is energized spaced from the bottom of the bracket 20.
With the tool head in the inoperative position,.as shown in FIGS. 1 and 3, the motor 14 is ,deenergized with the bracket 26 drawn upwardly to the'plate 12. The spring 34 encircling the stroke rod 30 is-holding the carrier 26 against the stop 24 while the spring 60 hearing against the top of the bracket 26 and the collar 62 urges the cam rod to its uppermost position in which the collar 64 abuts the plate 10 and the collar 66 is spaced from the bottom of the bracket 20 withthe cam follower 4-6 riding on the intermediateqcamsurface 56. When'the cam followers 46 ride on the cam surface 56, the legs 38 are spread slightly from one another sumcient to open the keyhole slot type opening 5%} to, allow the passage of a fastener from the chute 68 through the neck portion of the slot (see FIG. 2).
To drive a fastener into the work, the motor 16- is to move the tool head 21 downwardly. Due to the force of the spring 34 hearing against the bottom of the bracket 20 and the lug 28, the complete device (carrier 26 and legs 38) movesdownwardly with the bracket 20. The cam rod 52, however, due to the force of the spring 60 maintains its original position until the bracket 29 engages the collar 66. When this position is reached, the carrier 26 and legs 38 have moved relative to the cam rod 52 such that the cam followers 46 have now moved to the smallest cam surface 54. Since the cam surface 54 is smaller in diameter than the cam surface 56, the force of the spring 44 urges the legs '38 towards one another openings in the bracket 20 and the plates 16 and 12. A 7
Further movement of the tool head moves the spindle 18, the carrier 26 and legs 38 as well as the cam rod 52 forwardly toward thework until the fastener F initially engages such work. As the fastener engages the work, the fastener stops and with further forward motion of the rotating spindle, the driver D engages the fastener and rotates it (see FIG. 4).
Further driving of the tool head 21 towardsthe work 7 by the motor 14 and rotation of the driver D by the motor 16 causes the fastener F to start. to thread into the Work W, and, move the cam rod, carrier 26 and legs 38 forward towards the work until the collar 32 engages the plate 10 and stops the advancement of the carrier 26 and legs 38 just prior to contact of the work W by the feet portions 48. Continued advancement of the tool head 21 towards the work causes the bracket 20 to move downwith the work W (see FIG.
Further driving by the tool head 21 to completely drive the fastener F into the work W advances the cam rod 52 together'with the bracket 20 and the spindle housing 22 towards the work and causes the largest cam surface 58 to enter between the cam followers 46. Since the surface 58 is larger in diameter than is the surface 56, the legs 38 are moved still further away from one another until the sides of the feet portions 48 are removed from under the fastener head and out of the path of the driver D so the driver can fully drive the fastener F into the work (see FIG. 6).
Raising of the tool head 21 including the bracket 26* causes the cam rod 52 to raise while the spring 34 holds the collar 32 in contact with the plate lltl until the carrier 26 again abuts the stop 24. The cam rod 52 also is carried upwardly due to the force of the spring 66 until the collar 64 abuts the plate 10. At that point, the cam rod stops and the bracket 29, carrier 26 and legs 38 continue to move upwardly until the bracket engages the plate 12. At that point, the cam followers again have moved on to the cam surface 56 opening the slot 5th to permit the entry of another fastener F.
Having described the invention, I claim:
1. In a fastener driving machine, a tool head movable toward the work having a fastener driver extending from. the forward end of said tool head adapted to drive fasteners, a sleeve longitudinally movably connected to the tool head and having a stop to limit the forward movement of said sleeve, spring means urging said sleeve in the direction of the work, a pair of members pivotally connected to said sleeve and having portions in face to face relationship and so profiled as to form an opening therebetween for the reception of a fastener, a rod connected to the machine having an abutment spaced from the tool head and a cam portion reducing in size in the direction of the work, said cam portion positioned such to engage said pair of members, said pair of members being movable toward the Work with the tool head and relative to said cam portion to pivot such members toward one another to reduce the opening to hold a fastener therein as said tool head moves to contact said abutment, said rod and said pair of members movable towards the work with said tool head such that the said stop contacts said sleeve to limit the movement of said pair of members towards the work, and said cam portion is movable relative to said pair of members to pivot such members away from one another to enlarge the opening to release a fastener as said tool head moves toward the work and relative to said sleeve to drive such fastener.
2. In a fastener driving machine, a tool head movable toward the work having a fastener driver rotatable relative to said tool head and extending from the forward end of said tool head adapted to drive fasteners, a pair of members movably connected to the tool head and having portions in spaced face to face relationship forming an opening for the reception of a fastener, biasing means to constantly urge said portions of said members towards each other, a cam positioned for engaging said members, said members movable in the direction of movement of said tool head and relative to said cam to hold a fastener,
and said cam being movable in the direction of movement of said tool head and movable relative to said members to urge said portions of said members away from each other against the action of said biasing means to release the fastener.
3. In a fastener driving machine, a tool head movable toward the work having a fastener driver rotatable relative to said tool head and extending from the forwardend of said tool head adapted to drive fasteners, a sleeve carried by the tool head and having limited slidable movement relative to said tool head, spring means urging said sleeve in the direction of the work, a pair of members being pivotally connected to said sleeve and having portions in face to face relationship forming an opening therebetween for the reception of a fastener, a cam memher having a cam portion engaging said pair of members and an abutment spaced from and adapted to contact the tool head, and said cam portion and said pair of members adapted to move relative to one another by the movement of the tool head toward the work to control the relative positions of said portions to hold and release a fastener.
4. In a fastener driving machine, a tool head movable toward the work having a fastener driver extending from the forward end of said tool head adapted to drive fasteners, a sleeve connected to the tool head, members pivotally connected to said sleeve and having portions in face to face relationship disposed in the path of movement of the fastener driver forming an opening therebetween for the reception of a fastener, biasing means to constantly urge said portions of said members towards each other, a cam member having a' can portion reduced in size in the direction of the work and positioned to engage said members, and said cam portion being adapted to move toward the work with the tool head to pivot said members away from each other against the action of said biasing means to release the fastener.
5. In a fastener driving machine, a tool head movable toward the work having a fastener driver extending from the forward end of said tool head adapted to drive fasteners, a carrier connected to the tool head, spring means urging said carrier in the direction of the work, a pair of members pivotally connected to said carrier and having portions so profiled as to form an opening therebetween for the reception of a fastener, a cam movable in the direction of movement of said tool head positioned for engaging said members for pivoting the members to .vary the size of the opening, and said members movable in the direction of movement of said tool head and relative References Cited in the file of this patent UNITED STATES PATENTS 434,215 Unbehend Aug. 12, 1890 529,701 Briggs Nov. 27, 1894 1,515,025 Foy Nov. 11, 1924 1,945,741 Gray Feb. 6, 1934 2,373,992 Billinghurst Apr. 17, 1945 2,519,811 Alexander Aug. 22, 1950 2,625,967 Stull Jan. 20, 1953 2,696,855 Seegers Dec. 14, '1954
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US836259A US3011534A (en) | 1959-08-26 | 1959-08-26 | Fastener holding and driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US836259A US3011534A (en) | 1959-08-26 | 1959-08-26 | Fastener holding and driving device |
Publications (1)
Publication Number | Publication Date |
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US3011534A true US3011534A (en) | 1961-12-05 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US836259A Expired - Lifetime US3011534A (en) | 1959-08-26 | 1959-08-26 | Fastener holding and driving device |
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US (1) | US3011534A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3200863A (en) * | 1961-07-01 | 1965-08-17 | Feldpausch & Co | Screw driving machines |
US3279045A (en) * | 1964-08-03 | 1966-10-18 | Paul H Dixon | Assembling mechanism |
US3642039A (en) * | 1969-06-02 | 1972-02-15 | Hill Rockford Co | Power screwdriver |
US3662797A (en) * | 1970-06-18 | 1972-05-16 | Behring Corp | Screwdriving apparatus |
US3965950A (en) * | 1975-03-20 | 1976-06-29 | Macdonald Murdo A | Fastener driver and fastener holding nosepiece |
US4003417A (en) * | 1975-07-28 | 1977-01-18 | Leroy Cornwell | Self locking and unlocking clamp for automatic fastener driving tools |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US434215A (en) * | 1890-08-12 | Jacob j | ||
US529701A (en) * | 1894-11-27 | Machine for driving screws into wood | ||
US1515025A (en) * | 1922-07-08 | 1924-11-11 | John C Foy | Screw-driving machine |
US1945741A (en) * | 1933-02-09 | 1934-02-06 | Winfleld E Gray | Screw driver |
US2373992A (en) * | 1943-06-18 | 1945-04-17 | Charles Handler | Self-feeding power-driven screw driver or like tool |
US2519811A (en) * | 1948-01-13 | 1950-08-22 | Roy H Alexander | Screw holding screw driver |
US2625967A (en) * | 1949-12-19 | 1953-01-20 | Illinois Tool Works | Screw-holding and screw-driving tool |
US2696855A (en) * | 1953-11-02 | 1954-12-14 | Illinois Tool Works | Screw gripping jaw |
-
1959
- 1959-08-26 US US836259A patent/US3011534A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US434215A (en) * | 1890-08-12 | Jacob j | ||
US529701A (en) * | 1894-11-27 | Machine for driving screws into wood | ||
US1515025A (en) * | 1922-07-08 | 1924-11-11 | John C Foy | Screw-driving machine |
US1945741A (en) * | 1933-02-09 | 1934-02-06 | Winfleld E Gray | Screw driver |
US2373992A (en) * | 1943-06-18 | 1945-04-17 | Charles Handler | Self-feeding power-driven screw driver or like tool |
US2519811A (en) * | 1948-01-13 | 1950-08-22 | Roy H Alexander | Screw holding screw driver |
US2625967A (en) * | 1949-12-19 | 1953-01-20 | Illinois Tool Works | Screw-holding and screw-driving tool |
US2696855A (en) * | 1953-11-02 | 1954-12-14 | Illinois Tool Works | Screw gripping jaw |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3200863A (en) * | 1961-07-01 | 1965-08-17 | Feldpausch & Co | Screw driving machines |
US3279045A (en) * | 1964-08-03 | 1966-10-18 | Paul H Dixon | Assembling mechanism |
US3642039A (en) * | 1969-06-02 | 1972-02-15 | Hill Rockford Co | Power screwdriver |
US3662797A (en) * | 1970-06-18 | 1972-05-16 | Behring Corp | Screwdriving apparatus |
US3965950A (en) * | 1975-03-20 | 1976-06-29 | Macdonald Murdo A | Fastener driver and fastener holding nosepiece |
US4003417A (en) * | 1975-07-28 | 1977-01-18 | Leroy Cornwell | Self locking and unlocking clamp for automatic fastener driving tools |
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