Stapler

• US 10,603,811 B2
• Filed: 10/18/2017
• Issued: 03/31/2020
• Est. Priority Date: 10/31/2016
• Status: Active Grant

• Current Assignee: Max Co Limited
• Original Assignee: Max Co Limited
• Inventors: Shimizu, Toshio, Kameda, Futoshi, Sugihara, Shinpei
• Primary Examiner(s): Long, Robert F
• Application Number:
  US15/786,662
• Publication Number:
  US 20180117788A1
• Time in Patent Office: 895 Days
• Field of Search: 227 81- 82, 227107-156
• CPC Class Codes: B27F 7/21 with means for forming the staples in the machine
• CPC Class Codes: B27F 7/36 operated by electric power
• CPC Class Codes: B27F 7/38 Staple feeding devices
• CPC Class Codes: B65H 2403/51 Cam mechanisms
• CPC Class Codes: G03G 15/6541 Binding sets of sheets, e.g. by stapling, glueing
• CPC Class Codes: G03G 15/6544 Details about the binding means or procedure

Abstract

The staple receiving portion includes a clamping portion exposed to the paper clamping portion and configured to clamp the sheets of paper, and a staple guide portion provided on an end portion of the clamping portion at a side thereof, on which the staple striking portion is located, and configured to guide the staple struck by the staple striking portion. The clamping portion is made configured of a resin material. The staple guide portion includes a staple leg support member provided on a side of the clamping portion opposite to a side thereof, on which the sheets of paper are clamped, and configured to support the staple legs of the staple struck by the staple striking portion, and a guide member provided to oppose the staple leg support member, the staple leg support member and the guide member are made configured of a metal material.

Claims

1. A stapler, comprising:

a staple striking portion configured to strike a staple so as to penetrate sheets of paper;

a staple receiving portion attached on the staple striking portion and configured to receive the staple before being struck out from the staple striking portion;

a binding portion configured to bind the sheets of paper by bending staple legs of the staple penetrating the sheets of paper; and

a paper clamping portion configured to clamp the sheets of paper between the staple striking portion and the binding portion,

wherein the staple receiving portion comprises;

a clamping portion exposed to the paper clamping portion and configured to clamp the sheets of paper; and

a staple guide portion provided on an end portion of the clamping portion at a side thereof on which the staple striking portion is located, and configured to guide the staple struck by the staple striking portion,

wherein the clamping portion is configured of a resin material,

wherein the staple guide portion comprises;

a staple leg support member provided on a side of the clamping portion opposite to a side thereof on which the sheets of paper are clamped, and configured to support the staple legs of the staple struck by the staple striking portion; and

a guide member provided to oppose the staple leg support member, and

wherein the staple leg support member and the guide member are configured of a metal material.

2. The stapler according to claim 1, wherein the staple leg guide member is provided to be movable in directions approaching and separating from the guide member and is urged in the direction approaching the guide member.

3. The stapler according to claim 1, wherein the staple leg guide member is configured to be stationary in a state where a gap allowing one staple to pass therethrough is formed between the staple leg guide member and the guide member.