Patent ID: 8984994
Filing Date: 2015-03-24
Classification: B23D,B25F,B25G

Abstract:
1. A hand tool comprising: a handle having a holding member connected to a front end thereof; a first part connected to one end of the holding member and having a first recess, a second recess and a third recess, the first recess defined transversely through the first part, the second recess located beside the first recess and communicating with the first recess, the third recess defined in a side of the first part and communicating with the second recess which is located between the first and third recesses, two respective inner diameters of the second and third recesses being larger than an inner diameter of the first recess, a first opening defined in an end of the first part and communicating with the first and second recesses, a second opening defined in the end of the first part and communicating with the third recess, a width of the first opening being at least equal to the inner diameter of the first recess and being smaller than the inner diameter of the second recess, a width of the second opening being larger than the inner diameter of the third recess; a second part connected to the front end of the handle and having a space defined therein, the second part having an entrance which communicates with the space so that the first part is accommodated in the space via the entrance, a first hole and a second hole respectively defined in two sides of the second part; a control unit having a first pin, a second pin, a ring and a spring, the spring mounted to the first pin and the first pin extending through the first hole, the spring being biased between a first head of the first pin and an outside of the first hole, the second pin extending through the second hole and connected to the first pin, the ring being clamped between the first and second pins, the ring being movably engaged with the second recess in the first part, the ring being removed from the second recess and moved into the third recess when the first pin being pushed and the first part is disengaged from the second part.