Patent ID: 9061404
Filing Date: 2015-06-23
Classification: B25B

Abstract:
1. A ratchet mechanism comprising: a plurality of rotating drive members having teeth, one of the drive members being a stationary drive member having a fixed rotational axis and another of the drive members being a movable intermediate drive member, said movable intermediate drive member being engaged directly or indirectly with said stationary drive member such that rotation of said movable intermediate drive member rotates said stationary member; said stationary drive member comprising an anvil adapted to impart rotational force to another object; a first pawl member having teeth, said first pawl member being movable in a reciprocating manner in a first direction and a second direction, wherein during movement of said first pawl member in a first direction said first pawl member is engaged with one of said rotating drive members and rotates said stationary drive member in a first rotational direction; and a second pawl member having teeth, said second pawl member movable in a reciprocating manner in said first direction and said second direction alternating with said first pawl member, such that with said first pawl moving in said first direction said second pawl is moving in said second direction and with said first pawl moving in said second direction said second pawl is moving in said first direction, wherein during movement of said second pawl member in said first direction said second pawl member is engaged with another of said rotating drive members and rotates said stationary drive member in said first rotational direction.