The invention discloses a spring-assisted folding knife and a method for biasing a blade within a folding force. The folding knife includes a blade, a pad and a handle. The blade includes a first groove for receiving the pivot pin. The blade includes a second groove offset from the axis of rotation. The locking cam with the offset pin is placed relative to the second groove. The gasket includes an arc-shaped groove in which the biasing pin of the locking cam is placed. The arcuate slot in the liner or handle also includes a convex extension slot. The spring is configured to provide a force in the blade opening direction, and provide a force in the entire range of blade movement. In the closed position, the spring exerts its force on the biasing pin to bias the blade until the blade reaches a predetermined angle. The spring then biases the blade to the open position.
Date of application: February 6, 2004
Open day: June 2006 14.
Date of authorization announcement:
Applicant/patentee: Booker Tools Co., Ltd.
Applicant's address: California, USA
Inventor: E·P· Lynn; P. naranjo; P. Casa; B. hache
Patent agency: Shanghai Patent and Trademark Office.
Authorized Agent: Gu Junfeng.
Patent type: invention patent
Classification number: B26B 1/02
Locking lining: This special locking system was invented by tool manufacturer Michael Walker, hence its name, because its locking device is integrated with the lining of the handle. The principle of thread lock is that when the folding knife is opened, the lining metal sheet will bend and press against the end of the blade installed in the handle, locking it in this open state. When the liner is opened by hand, the blade will be released so that it can be folded inward and closed. Separate locks allow users to open folding knives with the thumb of one hand, which saves unnecessary actions and time, so they are widely used in tactical folding knives, tools and hand knives. In fact, "lock lining" should be translated into "lining lock" instead of "thread lock", and "lining" means lining. )