Title:
DRILL CHUCK WITH HARDENED BODY
Document Type and Number:
WIPO Patent Application WO/2023/137751
Kind Code:
A1
Abstract:
A chuck for use with a powered driver having a rotatable drive shaft is provided. The chuck may include a body comprising a forward bore, a plurality of passageways, and a posterior bore. A plurality of jaws may be movably disposed within the plurality of passageways. The posterior bore may be disposed in a posterior section of the body and the posterior bore may be configured to receive the drive shaft to couple the drive shaft with the chuck. A hardened layer may be disposed at a posterior face of the body that surrounds the posterior bore. The hardened layer may have a hardened layer depth to a transitional interface with an internal region of the posterior section. The hardened layer may have a first hardness and the internal region may have a second hardness. The first hardness may be greater than the second hardness.
Inventors:
LI XINGLU (CN)
Application Number:
PCT/CN2022/073486
Publication Date:
July 27, 2023
Filing Date:
January 24, 2022
Export Citation:
Assignee:
JACOBS CHUCK MANUFACTUIRNG SUZHOU COMPANY LTD (CN)
APEX BRANDS INC (US)
APEX BRANDS INC (US)
International Classes:
B23B31/12
Foreign References:
| US5186478A | 1993-02-16 | |||
| US6540237B1 | 2003-04-01 | |||
| CN108361363A | 2018-08-03 | |||
| CN1249222A | 2000-04-05 | |||
| CN1853836A | 2006-11-01 | |||
| US20020053773A1 | 2002-05-09 |
Attorney, Agent or Firm:
BEIJING WANHUIDA LAW FIRM (CN)
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