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Impact tool

A technology for impact tools and housings, applied in the field of impact tools, can solve problems such as hindering applications

Active Publication Date: 2007-05-30
NITTO KOHKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the size of the annular elastic member will not increase, which would hinder its application in operations requiring large forces on the workpiece

Method used

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Experimental program
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Effect test

Embodiment Construction

[0041] Embodiments of an impact tool according to the present invention will be described below with reference to the accompanying drawings.

[0042] As shown in the accompanying drawings, the impact tool 10 according to the present invention has a housing 12 containing a needle drill 16 (described later), a needle drill holder 18 (refer to FIG. The driving device of the support 18.

[0043] The shell 112 is cylindrical in shape as a whole. The housing 112 has a front cover 114 extending rearwardly from the front end of the housing 112 . The housing 118 is detachably connected to the rear end of the front cover 114 .

[0044] The front cover 114 has an annular fastening portion 120 (see FIGS. 3-6 ) which is placed onto and clamped to the reduced diameter front edge portion 118 - 1 of the housing 118 (see FIGS. 3 and 7 ). On the outer peripheral surface, it can be connected with the outer peripheral surface. The front cover 114 also has a cylindrical portion 122 extending f...

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PUM

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Abstract

An impact tool enables a front cover part to be easily attached to and detached from a housing body, with a device having a simplified structure. The front cover part has an annular fastening portion clamped to the outer peripheral surface of a front edge portion of the housing body, a cylindrical portion extending from the front end of the housing to the region of the fastening portion, and a connecting portion connecting together the cylindrical portion and the fastening portion. The fastening portion is split at a circumferential part thereof to form a pair of circumferentially opposing tongue-shaped portions. A clamping device is provided between the tongue-shaped portions, which is movable between a clamping position where it pulls the tongue-shaped portions toward each other and an unclamping position where the tongue-shaped portions are released from being pulled toward each other.

Description

[0001] This application is a divisional application of the invention patent application with the application number 200410087456.2, the application date being May 12, 2004, and the invention name being "impact tool". technical field [0002] The present invention relates to an impact tool, which has a reciprocating punch, an anvil arranged in front of the punch, a needle-shaped drill support, and an air cylinder capable of accommodating the above-mentioned punch, anvil and needle-shaped drill support arranged coaxially with each other . The cutting board is used to bear the impact force from the punch, and the needle drill support can be used to carry a plurality of longitudinally movable needle drill bits, and bear the impact force transmitted from the punch through the cutting board. The impact tool is adapted to apply an impact to a workpiece by pressing the front end of a needle drill against the surface of the workpiece. Background technique [0003] The traditional im...

Claims

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Application Information

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IPC IPC(8): B25F5/02B25F5/00B25D9/00B25D17/24B25D17/04B25D17/02B25D9/04
Inventor 御器谷俊雄大木泰正铃木保全
Owner NITTO KOHKI CO LTD