主权项 |
1. A hand tool with an angle adjusting mechanism, comprising:
a handle having two pivot ears defined at one end thereof, a receiving groove defined between the two pivot ears, a transverse hole defined in one lateral side thereof and an longitudinal hole defined in a bottom of the receiving groove, the longitudinal hole communicating with the transverse hole; a tool head having a pivoting portion received in the receiving groove of the handle, the tool head assembled with the two pivot ears by a pivot shaft passing through, the pivoting portion having a row of teeth formed at an outer periphery thereof and arranged in an arc; a controlling rod being movable in the transverse hole of the handle, the controlling rod defining a recess corresponding to the longitudinal hole and an inclined plane sloped toward the recess; an engaging member having a post extending through the longitudinal hole of the handle and an engaging head corresponding to the arc teeth face of the pivoting portion, the inclined plane of the controlling rod abutting against the post, the engaging head having an inner tooth part defined at a top side thereof and two side teeth disposed at opposite sides of the inner tooth part, the two side teeth being higher than the inner tooth part to form a substantially concave shape so that the inner tooth part and the two side teeth of the engaging head are engaged with the teeth of the pivoting portion, each of the two side teeth having an abutting face defined at a top side thereof, each abutting face being a horizontal plane which abuts against one of the teeth of the pivoting portion corresponding thereto; and a spring disposed in the longitudinal hole of the handle and mounted around the post of the engaging member, the spring having a diameter larger than a width of the inner tooth part; wherein, the inner tooth part and the two side teeth form a substantially concave shape to engage with the teeth of the pivoting portion. |