Patent ID: 6212977
Filing Date: 2001-04-10
Classification: B25B

Abstract:
A spring chuck comprising:first and second handles, and a locking mechanism provided between said first and second handles;said locking mechanism including a sleeve, a shaft, a brake, and a compression spring;said sleeve being fixedly connected at an upper end to a predetermined point on an inner side surface of said first handle and defining an inner space;said brake slidably attached along the shaft and positioned outside of the sleeve;said shaft being fixedly connected at a lower end to a predetermined point on an inner side surface of said second handle with an upper end thereof movably located in said inner space of said sleeve via a lower open end of said sleeve; andwherein the locking mechanism is always positioned between said handles and the compression spring exerts pressure on one side of said brake such that said brake releasably locks onto said shaft.