Stapler anvil

• US 4,717,063 A
• Filed: 08/25/1986
• Issued: 01/05/1988
• Est. Priority Date: 12/16/1985
• Status: Expired due to Fees

• Current Assignee: Etona Company Limited
• Original Assignee: Etona Company Limited
• Inventors: Ebihara, Yoshiyuki
• Primary Examiner(s): Kazenske, E. R.
• Assistant Examiner(s): Wolfe, James L.
• Application Number:
  US06/899,678
• Time in Patent Office: 498 Days
• Field of Search: 227/120, 227/155, 227/131, 227/156
• US Class Current: 227/155
• CPC Class Codes: B25C 5/025 the plunger being manually operated

Abstract

The present invention provides a stapler including a base, a frame pivotally mounted on the base as its rearward end, a handle pivotally mounted on the frame at its rearward end, at least the handle being made of a plastic material, the base including a recess formed on its surface facing the frame at the forward end, and a metallic anvil element being pressed into the recess on the base, the anvil element having at least one pointed projection extending outwardly from the side wall of the anvil element, the pointed projection biting into the material of the base at the corresponding side wall of the recess to hold the anvil element within the recess.

Claims

1. A stapler comprising a base, a frame, and a handle with each having a forward end portion, an intermediate portion and a rearward end portion, the frame being pivotally mounted on said base at substantially the intermediate portion of said base, the handle being pivotally mounted on said frame at the rearward end portion thereof, at least said base being made of a plastic material, said base having a surface facing said frame at the forward end portion thereof, said base having a recess formed in said surface, said recess being defined by plural walls, and a metallic anvil element being pressed into said recess on said base, said anvil element having at least one side wall and having at least one pointed projection extending outwardly from said side wall of said anvil element, said pointed projection biting into the material of said base at a corresponding side wall of said recess to hold said anvil element within said recess.

2. A stapler as defined in claim 1 wherein said anvil element has a relatively large thickness.

3. A stapler as defined in claim 1 wherein said anvil element has two pointed projections extending forwardly from a forward side wall of said anvil element and a pointed projection extending rearwardly from an opposite side wall of said anvil element.