Fastener driving device with multiple bits

• US 4,440,048 A
• Filed: 07/09/1981
• Issued: 04/03/1984
• Est. Priority Date: 07/03/1980
• Status: Expired due to Fees

• Current Assignee: MIC Manufacturing and Machine Works Limited
• Original Assignee: MIC Manufacturing and Machine Works Limited
• Inventors: Sweet, Edmund G. F., Vresk, Franklin V., Stevens, Larry G. H.
• Primary Examiner(s): Schmidt, Frederick R.
• Assistant Examiner(s): Zatarga, J. T.
• Application Number:
  US06/281,785
• Time in Patent Office: 999 Days
• Field of Search: 145/62, 145/63, 145/61 L, 81/437, 81/439, 81/440, 81/450, 81/436
• US Class Current: 81/440
• CPC Class Codes: B25B 23/18 Devices for illuminating the head of the screw or the nut
• CPC Class Codes: B25F 1/04 wherein the elements are brought into working positions by a pivoting or sliding movement
• CPC Class Codes: B25G 1/085 for screwdrivers, wrenches or spanners

Abstract

A screwdriver comprises a handle having four screwdriver blades pivotally connected adjacent one end. The blades may be pivoted from a stored position alongside the handle to an operative position in advance of the handle. A locking device locks the blade in an operative position and comprises a disc rotatably mounted on the one end of the handle with a slot to engage the blade. The slot has a radial portion and a circumferential position so that the blade first enters the radial portion and the disc is then rotated to hold the blade in the circumferential portion.

Claims

1. A driving device for driving rotatable fasteners, said driving device comprising a handle, a plurality of driving bits spaced about said handle, pivot means pivotally connecting each of said bits to said handle adjacent to one end thereof for movement of each of said bits from a stored position in which said bit lies alongside said handle to an operative position in which said bit extends beyond said one end of said handle and lock means rotatably supported on said handle and operable between said bit and said handle to lock said bit in said operative position, said lock means including a passageway selectively alignable with each of said bits by rotation of said lock means relative to said handle, said bit passing through said passageway in moving from said stored to said operative position said lock means having an abutment surface adjacent said passageway, rotation of said lock means relative to said handle moving said abutment surface into alignment with said bit to prevent pivotal movement thereof about said pivot means, said pivot means being located on said handle relative to said lock means for movement of said bits from said stored position toward said operative position regardless of the position of said lock means.

2. A driving device according to claim 1 wherein said bits are located within recesses in said handle in said stored position.

3. A driving device according to claim 1 wherein said lock means comprises a slotted cap rotatably mounted on one end of said handle, said cap including said passageway and said abutment surface whereby rotation of said cap moves said bit and said abutment surface into alignment to hold said bit in said operative position.

4. A driving device according to claim 3 wherein said slot includes a radial portion and a circumferential portion, said abutment surface defining a radial outer edge of said circumferential portion, said bit initially entering said radial portion and entering said circumferential portion upon rotation of said cap.

5. A driving device according to claim 1 wherein said pivot means are spaced from the axis of said handle and said blades are cranked intermediate their ends to extend alongside said longitudinal axis in said operative position.

6. A driving device according to claim 2 wherein said lock means comprises a cap rotatably mounted on one end of said handle and having said passageway and said abutment surface formed therein, said abutment surface extending circumferentially around said cap for movement with said cap into alignment with said bit to hold said bit in said operative position.

7. A driving device according to claim 6 wherein said lock means comprises a cap rotatably mounted on one end of said handle and having said passageway formed therein, said cap being rotatable upon entry of said bit in said passageway to move a circumferential wall into alignment with said bit to hold said bit in said operative position.

8. A driving device according to claim 7 wherein said cap is in the form of a ring and said passageway includes a slot extending radially through said ring.

9. A driving device according to claim 8 wherein said circumferential wall defines a cam surface which engages said bit upon rotation of said cap.

10. A driving device according to claim 7 wherein said handle includes a bore and a light source is mounted in said bore, said light source being located radially inwardly of said ring so as to remain uncovered at all positions of said ring.

11. A driving device according to claim 10 wherein said light source is generated from a switch mounted on said handle.

12. A driving device according to claim 11 wherein said bore extends generally parallel to the longitudinal axis of said handle and is arranged to house an electric battery.

13. A driving device according to claim 1 wherein said pivot means includes pins extending between opposed walls of said recesses and passing through one end of said bit.

14. A driving device according to claim 1 wherein said lock means comprises a cap rotatably mounted on one end of said handle and having said passageway formed therein, said cap being rotable upon entry of said bit in said passageway to move a circumferential wall into alignment with said bit to hold said bit in said operative position.

15. A driving device for driving rotatable fasteners, said device comprising a handle, a plurality of bits spaced about said handle, pivot means pivotally connecting each of said bits to said handle for pivotal movement from a stored position in which said bit lies alongside said handle to an operative position in which said bit extends in advance of one end of said handle, lock means to hold said bit in said operative position, and a flashlight assembly located in said handle and producing a beam of light in advance of said handle to illuminate a bit in said operative position, a plurality of said bits being moveable about said pivot means to a position intermediate said stored position and said operative position to project outwardly from said handle, said plurality of bits and said handle constituting a tripod, to provide a stable support for said handle, in an inclined position on the ground and permit said beam of light to illuminate an elevated location and permit use thereof as a flashlight.

16. A driving device according to claim 15 wherein said bits are pivotally located adjacent said handle one end.

17. A driving device according to claim 16 wherein said flashlight assembly includes a bore located in said handle to receive a source of electrical energy and a bulb located in said bore at said one end of handle.

18. A driving device according to claim 17 wherein said handle includes at said one end a generally planar surface and said bore intersects said surface to provide a location for said bulb.

19. A driving device according to claim 18 wherein switch member is located on the exterior surface of said handle to operate said flashlight.

20. A driving device according to claim 19 wherein said flashlight assembly includes a conductor extending along said bore and moveable into engagement with said bulb by said switch member to complete the circuit between said electrical source and said bulb.

21. A driving device according to claim 20 wherein said switch member includes a cam pivotally connected to said handle and extending into said bore to engage said conductor.

22. A driving device according to claim 21 wherein said cam member is connected to said handle for pivotal movement about an axis generally parallel to the longitudinal axis of said handle.

23. A driving device according to claim 18 wherein said lock means includes an annular ring encompassing said planar surface and having a discontinuity therein to permit a bit to move from said stored to said operative position when said discontinuity is aligned therewith.

24. A driving device for driving rotatable fasteners, said device comprising a handle, a plurality of bits connected to said handle adjacent one end thereof and moveable from a stored position in which said bits lie alongside said handle to an operative position in which said bits extend beyond said one end of said handle, a flashlight assembly located in said handle and providing a source of light to illuminate a bit in said operative position, and lock means to hold said bits in said operative position.

25. A driving device according to claim 24 wherein said bits are connected to said handle at locations spaced from the longitudinal axis of said handle and each includes a crank to position a terminal position thereof on said longitudinal axis when in said operative position.

26. A driving device according to claim 25 wherein said flashlight assembly includes a bore located in said handle and extending from said one end to a location intermediate the ends of said handle, the axis of said bore being displaced to one side of said longitudinal axis and generally parallel thereto with a bulb being positioned in the bore adjacent said one end to illuminate a bit in said operative position.

27. A driving device according to claim 26 wherein said lock means includes an annular ring rotatably mounted on said handle adjacent said one end and having a discontinuity therein to permit said bit to move from said stored to said operative position, said bulb being located within the central aperture of said annular ring to permit illumination of a bit in said operative position.

28. A driving device according to claim 27 wherein said bits are pivotally connected to said handle by pivot means and said lock means is located between said one end and said pivot means to permit movement of a plurality of said bits to a position intermediate said stored and operative positions.