Adjustable spanner


Application Number: 00124336
Application Date: 2000.09.08
Publication Number: 1342545
Publication Date: 2002.04.03
Priority Information:
International: B25B13/10
Applicant(s) Name: Dong Zhigang
Address:
Inventor(s) Name: Dong Zhigang
Patent Agency Code: 00000
Patent Agent:
Abstract An adjustable spanner is composed of movable jaw, shapnner body, two lock blocks, small switch knob and spring, and flat-head screw. The movable jaw is matched with spanner body by convex slot track. The greater the force applied to the movable jaw, the greater the locking force of jamming blocks and lock blocks acting on the surface of the said slot, so not releasing the movable jaw. Its advantages are quick adjusting, no relaxation, and high reliability and efficiency.