| 摘要 |
A ratchet wrench structure includes a main body provided therein with a ratchet wheel, an actuating member and a restraining block positioned between the ratchet wheel and the actuating member. The restraining member has one side provided with two recessed portions, and the actuating member is provided with a position-limiting groove corresponding with the recessed portion, and an elastic member. When the actuating member is rotated, the elastic member will be actuated to push the recessed portion to have its front edge longitudinally and evenly pressing the recessed portion to enable the elastic member to support the restraining block in its entirety. Further, when the restraining block is stressed by rotation of the ratchet wheel, the restraining block can carry out reciprocating movement because of extension and contraction of the elastic member. Thus, the ratchet wrench structure can be simplified in number of components. |
| 主权项 |
1. A ratchet wrench structure comprising: a main body provided with an acting end, said acting end formed therein with an accommodating groove and an insert groove, said accommodating groove having a ratchet wheel assembled in the interior, said ratchet wheel having a circumferential side annularly provided with gear teeth, a stop groove formed between said accommodating groove and said insert groove, said accommodating groove and said stop groove and said insert groove communicating with one another, an restraining block slidably received in said stop groove, said restraining block having one side adjacent to said ratchet wheel provided with gear teeth, said restraining block having another side disposed with two longitudinal and juxtaposed recessed portions, said recessed portions and said restraining block being the same in height, and characterized by an actuating member pivotally assembled in said insert groove, said actuating member formed with a position-limiting groove corresponding to said recessed portion of said restraining block, said position-limiting groove being a rectangular recessed groove with a longitudinal long side, said position-limiting groove received therein with an elastic member, said elastic member being rectangle-shaped corresponding with said position-limiting groove, a longitudinal height of said elastic member approximately corresponding with a longitudinal height of said recessed portion; thus, said elastic member actuated to optionally push against one of said two recessed portions of said restraining block, said elastic member having a longitudinal front edge evenly pressing against said recessed portion to enable said restraining block and said ratchet wheel to produce better engagement effect, further, said restraining block able to evenly exert force to press against said elastic member when said restraining block is stressed by rotation of said ratchet wheel, said restraining block able to carry out reciprocating movement because of extension and contraction of said elastic member. |
