Title:
UTILITY KNIFE HAVING LOCK NUT
Document Type and Number:
WIPO Patent Application WO/2020/047891
Kind Code:
A1
Abstract:
A utility knife having a lock nut, comprising a casing (1), a blade holder (2), a blade (3), a push button (4), and a locking device (5). A front end of the casing (1) is provided with a blade extension and retraction opening (11) for extending and retracting the blade (3), and a side of the casing (1) is provided with a slide groove for moving the push button (4). The blade (3) is fitted in the casing (1) by means of the blade holder (2). The push button (4) is used to control extension and retraction movements of the blade (3) at the blade extension and retraction opening (11). The locking device (5) comprises a locking rod (51) and an adjustment device (52). The adjustment device (52) is used to adjust the locking rod (51) such that the locking device (5) locks the blade (3).
Inventors:
ZHOU XIAOGANG (CN)
Application Number:
PCT/CN2018/105711
Publication Date:
March 12, 2020
Filing Date:
September 14, 2018
Export Citation:
Assignee:
NINGBO HONGDI MEASURING TAPE IND CO LTD (CN)
International Classes:
B26B1/08
Foreign References:
| CN101659061A | 2010-03-03 | |||
| CN206748479U | 2017-12-15 | |||
| CN106272568A | 2017-01-04 | |||
| US20030150117A1 | 2003-08-14 | |||
| US5005290A | 1991-04-09 |
Other References:
See also references of EP 3674042A4
Attorney, Agent or Firm:
DAN, SAMS & ASSOCIATES (CN)
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