Fastener driving device with multiple bits

• US 4,327,790 A
• Filed: 07/03/1980
• Issued: 05/04/1982
• Est. Priority Date: 07/03/1980
• Status: Expired due to Term

• Current Assignee: Bernard B. Corkum
• Original Assignee: MIC Manufacturing and Machine Works Limited
• Inventors: Sweet, Edmund G. F., Vresk, Franklin V., Stevens, Larry G. H.
• Primary Examiner(s): Kunin, Stephen G.
• Assistant Examiner(s): Zatarga, J. T.
• Application Number:
  US06/165,707
• Time in Patent Office: 670 Days
• Field of Search: 145/62, 145/63, 145/61 L, 81/437, 81/439, 81/440, 81/450
• US Class Current: 81/177.4
• 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 one end of said handle to permit 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 and being locked in said operative position by rotation of said lock means to move said bit and said passageway out of alignment.

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 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.

4. A driving device according to claim 3 wherein said passageway includes a radial portion and the circumferential wall is part of a connecting circumferential slot, said bit initially entering said radial portion and being held in said circumferential slot 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.