| 摘要 |
<p>Socket wrenches are equipped with sockets fitted to various bolt heads for fastening bolts while exchanging socket wrenches according to situations. Accordingly, a worker has problems such as wasting time exchanging sockets at an aerial work or an underground work, difficulty of managing several scores of socket types and missing sockets. To resolve the above problems, the present invention comprises: a bent plate which is cut at a certain angle and has a tilted jaw and a support pin; a bent plate support ring which supports the bent plate and a triangular or a trapezoidal pole which fills the vacant space between bent plates when the size of a socket increases at the movement of the bent plate in the diametric direction; a support spring which supports the inside of the bent plate; a control bucket which moves the bent plate while overcoming the elasticity of the control spring by moving the bent plate and pressurizing a tilted jaw of the bent plate; and a variable socket wrench body with which all parts are combined. According to the present invention, all sizes of socket wrenches can be realized between a state of extending the variable socket to the maximum and a state of constricting the variable socket to the minimum, thereby removing the inconvenience of managing sockets and reducing the waste of resources required for manufacturing and supplying a lot of sockets.</p> |
