Patent ID: 9140317
Filing Date: 2015-09-22
Classification: B25B,F16D

Abstract:
1. A wrench ratchet mechanism comprising: a driven member; a housing defining a chamber in which said driven member is at least partially received; a plurality of drive transmitting members disposed in respective recesses between said driven member and housing to transmit a drive force between said housing and driven member; and a force applying member extending at least partially around said driven member and movable in a circumferential direction thereof to apply a circumferentially directed force to said drive transmitting members to move said drive transmitting members in said recesses from a non-drive transmitting position towards a drive transmitting position, wherein said drive transmitting members are wedging elements that wedge between said housing and driven member when in said drive transmitting position; said wedging elements each have a first side and a second side and in said circumferential direction increase in thickness between said first and second sides; and said force applying member comprises respective first engagement members engageable with the respective first sides of said wedging elements to apply said circumferentially directed force to said wedging elements.