| CPC B25B 21/005 (2013.01) [B25B 21/002 (2013.01)] | 25 Claims |
|
1. A limited clearance hydraulic tool that provides torque to an associated threaded fastener assembly, the limited clearance hydraulic tool comprising:
a housing that receives hydraulic fluid and defines a piston cylinder, the piston cylinder defining a cylinder axis;
a piston slidingly disposed within the piston cylinder of the housing that outputs force and travels between a retracted position and an extended position;
a ratchet wheel rotatably received in the housing, the ratchet wheel defining a ratchet axis and being configured to engage the associated threaded fastener assembly;
a drive plate disposed within the housing so as to at least partially radially surround the ratchet wheel;
a piston rod extending between the drive plate and the piston;
a connection pin that defines a first point of contact between the piston rod and the drive plate, the connection pin continuously connecting the piston rod and the drive plate together to always drive and retract the drive plate by transmitting the force from the piston to the drive plate; and
a push plate that defines a second point of contact between the piston rod and the drive plate, the push plate being separate and unique from the first point of contact, wherein the push plate selectively contacts the drive plate for driving the drive plate.
|