NOVEL DRILL CHUCK - WEIHAI DAWANG HARDWARE PRODUCTS LTD

Title:

NOVEL DRILL CHUCK

Document Type and Number:

WIPO Patent Application WO/2014/012215

Kind Code:

A1

Abstract:

A novel drill chuck comprises a front body (1), a rear body (8), and a clamping jaw (5). A thread is provided on the clamping jaw (5). The rear body (8) is provided with a drive gear (19). A driven gear (3) is provided between the clamping jaw (5) and the rear body (8). The drive gear (19) is engaged with the driven gear (3). The driven gear (3) is provided therein with a thread engaged with the thread of the clamping jaw (5). The present invention solves the problem that the drill chuck is not easily opened due to an excessive clamping force and a cutter is easily damaged, and can be widely applied to the mechanical processing field.

Inventors:

LIU YAOTING (CN)
YU ZUOZI (CN)

Application Number:

PCT/CN2012/078743

Publication Date:

January 23, 2014

Filing Date:

July 17, 2012

Export Citation:

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Assignee:

WEIHAI DAWANG HARDWARE PRODUCTS LTD (CN)
LIU YAOTING (CN)
YU ZUOZI (CN)

International Classes:

B23B31/165; B23B31/11

Domestic Patent References:

WO2011095725A1

2011-08-11

Foreign References:

CN201023137Y	2008-02-20
CN201055921Y	2008-05-07
CN200967095Y	2007-10-31
CN101412117A	2009-04-22
CN101032759A	2007-09-12
US20050242531A1	2005-11-03

Other References: