| 摘要 |
The wrench base structure includes a positioning stage 20 and an outward-spreading arm 30. The positioning stage and the outward-spreading arm are formed with positioning holes 21 and restricting holes 31 respectively. One end of the outward-spreading arm is connected to the positioning stage by an elastic section 32. The elastic section keeps the outward-spreading arm slanted outward at a predetermined angle. The force of the outward-spreading arm is utilized to make the restricting holes stagger with respect to the positioning holes and position the wrench 40 which is inserted through both the holes. The outward-spreading arm may be pressed down to cause deformation of the elastic section, a reduction of the angle and alignment of the restricting holes with the positioning holes. |
