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:
Apr. 30, 2019
Filed:
Feb. 07, 2018
Man Kung Enterprise Co., Ltd., Taichung, TW;
Fu-Hui Chu, Taichung, TW;
Ching-Chi Hung, Taichung, TW;
Man Kung Enterprise Co., Ltd., Taichung, TW;
Abstract
In trigger labor-saving structure of a crossbow, the crossbow includes a body, an arcuate limb, and a trigger assembly. The limb is mounted adjacent to a front end of the body and intersects with the body, and the limb includes a bowstring. The trigger assembly includes: a trigger seat arranged on the body, a trigger partially accommodated in the trigger seat and downward extending out of the trigger seat, with the trigger having a stop face; a string hook member housed in the trigger seat and including an engagement face corresponding to the stop face; and at least one concave portion formed on the engagement face of the string hook member and defined between a first periphery and a second periphery of the engagement face. Thus, frictional resistance between the stop face and the engagement face reduces.