Work device and its moveable claw

• US 6,202,997 B1
• Filed: 02/02/1998
• Issued: 03/20/2001
• Est. Priority Date: 02/02/1998
• Status: Expired due to Term

• Current Assignee: Yasuda Seisakusho Company Limited
• Original Assignee: Yasuda Seisakusho Company Limited
• Inventors: Yasuda, Yoshikazu
• Primary Examiner(s): Eley, Timothy V.
• Assistant Examiner(s): WILSON, LEE D
• Application Number:
  US09/017,419
• Time in Patent Office: 1,142 Days
• Field of Search: 269/212, 269/43, 269/55, 269/89, 269/139, 269/195, 269/208, 269/122, 269/138, 269/190, 269/217, 269/147
• US Class Current: 269/212
• CPC Class Codes: B25B 1/103 with one screw perpendicular to the jaw faces, e.g. a differential or telescopic screw
• CPC Class Codes: B25B 1/125 with one screw perpendicular to the jaw faces
• CPC Class Codes: B25B 1/2436 around a vertical axis B25B1/2447 takes precedence
• CPC Class Codes: B25B 1/2463 Supports for the workpiece
• CPC Class Codes: B25B 1/2468 Lateral positioning arms
• CPC Class Codes: B25B 1/2473 with pull-down action on the workpiece

Abstract

A work vice of a work includes a first moving base slidably attached to a slide guide arranged in parallel with an elongated fundamental base in a longitudinal direction of the fundamental base, a second moving base capable of approaching an advancing direction side of the first moving base and being separated on the advancing direction side and sent out toward an advancing direction of the first moving base by a feed screw attached to the first moving base, a plurality of positioning means arranged at a predetermined pitch in the fundamental base to position and fix a leg portion side of the first moving base, a movable claw arranged on an advancing direction side of the second moving base and gripping one end of a work, and a pent roof portion having a gate shape and integrally formed with an upper portion of the second moving base on the first moving base side, a lower face of the pent roof portion slidably coming in contact with the first moving base on a sliding face parallel to the slide guide.

Claims

1. A vice for mounting on an elongated base comprising a slide guide mounted on said base in parallel longitudinal directions:

a first moving base having an upper portion and a lower leg portion, said lower leg portion slidably attached to said slide guide;

a second moving base capable of moving in an advancing direction of said first moving bases, being separated from said first moving base and sent out toward an advancing direction of said first moving base by a feed screw means attached to said first moving base for advancing and retracting said second moving base relative to said first moving base;

a plurality of cooperating positioning means arranged at a predetermined pitch in said elongated base and the lower surface of said second moving base to selectively position said first moving base;

a movable claw arranged on an advancing direction side of said second moving base and gripping one end of a work; and

an arched roof portion integrally formed with an upper portion of said second moving base and extending over the upper portion of said first moving base, a lower face of said roof portion slidably coming in contact with said first moving base forming a sliding face parallel to said slide guide said roof portion protecting said first and second movable bases from entry of foreign material.

2. A work vise of a work s claimed in claim 1, wherein said roof portion covers said upper portion of said first moving base such that the roof portion is longer than an interval of said positioning means, and said arched roof portion has legs with an in per surface, said inner surface being in sliding contact with an outside surface of said upper portion of said first movable base forming a guide face.

3. A work vice of a work as claimed in claim 1 or 2, wherein worm screw means in said first moving base advances said feed screw relative to said first moving base.

6. A work vice as claimed in claim 1, wherein said movable claw comprises:

a base block having a multistage sawtooth shape on its front face which is constructed by a pushing-down face included slantingly downward with respect to reaction fore from a work and a receiving face crossing said pushing-down face;

a claw block having a multistage sawtooth shape on its rear face which is constructed by a downward moving face coming in side contact with said pushing-down face and a contact face opposed to said receiving face; and

a rubber sheet interposed between said receiving face and said contact face, wherein said base block and said claw block are fastened to each other through a resilient member.

7. A work vice as claimed in claim 6, wherein said pushing-down face of said base block and said downward moving face of said claw block are set to multistage cylindrical faces rotatably adjustable in a horizontal direction with one central axis.

8. A work vice as claimed in claim 7, further comprising means for securing an adjustable vertical position of said base block relative to said claw block.

9. A work vice as claimed in claim 1, wherein said lower leg portion of said first moving base has a width larger than a width of said upper portion of said first movable base forming a shoulder portion forming said sliding face.

4. A movable claw of a work vice comprising:

a base block having a multistage sawtooth shape on its front face which is constructed by a pushing-down face inclined slantingly downward with respect to reaction force from a work and a receiving face crossing said pushing-down face;

a claw block having a multistage sawtooth shape on its rear face which is constructed by a downward moving face coming in slide contact with said pushing-down face and a contact face opposed to said receiving face; and

a rubber sheet interposed between said receiving face and said contact face, wherein said the base block and said claw block are fastened to each other through a resilient member.

5. A movable claw as claimed in claim 4, wherein said pushing-down face of said base block and said downward moving face of said claw block are set to multistage cylindrical faces rotatably adjustable in a horizontal direction with one central axis.