The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Feb. 13, 2018
Guangdong Mingmen Locks Industry Co., Ltd., Guangdong, CN;
Qian Xiao, Guangdong, CN;
Guangrui Ran, Guangdong, CN;
Abstract
A latch bolt buffer structure is disclosed for lock body, including outer lining board for lock body, latch bolt assembly, damper, connecting rod, latch bolt poking mechanism, dead bolt mechanism, box cover and box bottom assembly for lock body. Latch bolt assembly includes latch bolt, friction bolt, pull rod, spring, limiting silencing ring, and slider. The box bottom assembly includes an inner lining board for the lock body, a silencing block for the dead bolt, a silencing block for the latch bolt, a box bottom, a positioning plate, a spring, a fixing nail and a damper. Manufacturing parts made of sound-absorbent plastic material is adopted to replace metal parts, or separating metal parts by sound-absorbent plastic material is adopted to reduce noise generated by friction. At the same time, the damper buffer function is used to reduce sound generated by parts collision when lock body is working.