Patent ID: 8640572
Filing Date: 2014-02-04
Classification: B25B

Abstract:
1. A wrench, comprising: a transmitting device, comprising a rotor, a first working member, a second working member, a first linking member and a second linking member, the rotor comprising an upside driving portion and an underside driving portion, the first working member having at least one head, the second working member having at least one head, the first linking member being disposed between the first working member and the upside driving portion, the second linking member being disposed between the second working member and the underside driving portion; and a shell, the shell having a containing room, the transmitting device being disposed in the containing room; wherein the shell comprises a first section, a second section, and a middle section, the middle section has a first end and a second end, the first end extends upwardly to connect with the first section, the second end extends downwardly to connect with the second section, one stair portion of different horizontal section is formed between the first section and the middle section, another stair portion of different horizontal section is formed between the second section and the middle section; wherein the first section has a penetrating hole, the first working member is disposed in the first section, the head of the first working member protrudes from the penetrating hole, the second section has a penetrating hole, the second working member is disposed in the second section, the head of the second working member protrudes from the penetrating hole; wherein the middle section comprises a top surface and a bottom surface, the top surface has one through hole, the bottom surface has another through hole, the rotor comprises two heads, the linking member is disposed in the middle section, the two heads of the rotor are respectively disposed in the through holes.