A tubing connector wrench having a rotating hub held by two independent pawls. An open end of the hub and casing of the wrench allows it to engage over a piece of tubing and thereafter be engaged on a tubing connector. The wrench may be employed to turn tubing connectors without removing it for repositioning. The two pawls insure that the hub remains engaged for one way turning of the connector.

A screwdriver, including driver bit sleeve, revolving wheel-shaped driver bit holder and pushrod, the revolving wheel-shaped screwdriver bit holder is rotatably arranged at the rear side of the driver bit sleeve, the revolving wheel-shaped driver bit holder is distributed with axial containing hole containing driver bit and the containing hole can be turned to axially coincide with the inner hole of the driver bit sleeve; pushrod is arranged at the rear side of the revolving wheel-shaped driver bit holder and axially coincides with the inner hole of the driver bit sleeve, the inner hole of the driver bit sleeve includes torque transmission segment at the front part and guiding segment at the rear part, the hole wall of the guiding segment is arranged as guiding surface; and it can also include handle, pushbutton set, pushrod which extends into one of containing holes of driver bit holder when pushbutton set is positioned at first positioning portion of the front part of slideway on the handle, pushing the driver bit in the containing hole toward the driver bit sleeve on the handle until the driver bit extends out of the driver bit sleeve, and the pushrod is positioned at the rear side of the driver bit holder when the pushbutton set is positioned at the rear part of the slideway on the handle and take the corresponding driver bit back into the corresponding containing hole. Fewer constituent parts, simple structured, easy to replace the driver bit.

A spring component for a ratcheting mechanism, such as a ratchet wrench. The spring component is shaped to be retained in a recess without any special machining. For example, the spring component can be retained at three abutment points. A leaf of the spring component can abut a pawl, and a base portion opposite the leaf can abut the drive gear. Support arms can abut the sidewall of the recess to retain the spring component within the recess without the need for special machining or tooling.

A torque wrench (100, 400) may include a body (410), a force detector (420) operably coupled to the body and configured to detect a bending force applied to the body, and a user interface (140) operably coupled to the body and the force detector. The user interface may be configured to include a setting mode in which a variable feature of the torque wrench is adjustable. The user interface may be further configured to, when in the setting mode, adjust the variable feature based on the bending force applied to the body and detected by the force detector.

The present disclosure relates to a ratchet and, specifically, a ratchet head arrangement, or assembly, for a ratchet. The ratchet head arrangement, or assembly, of the present disclosure is directed to the features of a ratchet pawl that balance and transfer the loads and stresses on the internal components of ratchet head mechanism across the components of the assembly to avoid premature failure, or fracture, or avoid isolated point loads on the internal components. Specifically, a ratchet pawl of the present disclosure includes a recessed area dividing sets of teeth for engaging teeth of a ratchet gear in combination with opposing substantially flat stop walls that fully mate with the sidewalls of the interior housing of a ratchet head.

A driving shank assembly includes a tube, a drive head, a connector, and two quick release nuts. The tube has two enlarged portions each having a mounting recess and an external thread. Each of the enlarged portions has a plurality of slits and a plurality of elastic clamping pieces between the slits. The drive head has a driving recess and a mounting shaft. The mounting shaft of the drive head is inserted into the mounting recess of the tube. The connector has a mounting shaft and a connecting shank. The mounting shaft of the connector is inserted into the mounting recess of the tube. The connecting shank of the connector has a retaining groove for mounting an actuating tool. Each of the quick release nuts has an internal thread screwed onto the external thread of the tube.

A ratchet wrench system and kit enable users thereof to enhance grip and mechanical advantage in applying torque to either (a) rotate rotary fasteners or (b) prevent rotary fastener rotation. The ratchet wrench system and kit include at least one ratchet wrench assembly and at least one ratchet interface. The ratchet wrench assembly has a ratchet head and a lever arm. The ratchet head has a male side and a female side. The female side includes both deep and shallow sections. Long and short ratchet interface elements both include a male interface end and a female interface end. The male and female interface ends are respectively matable with the female and male sides of the ratchet wrench assembly. The long and short ratchet interfaces are interchangeably matable with the ratchet wrench assembly for enabling a secondary wrench to grip and enhance mechanical advantage via the ratchet wrench assembly.

A ratchet wrench comprising a ratchet head with a cylindrical bore having a central axis; a handle; a drive member (26) with a rotation axis (W-W) retained within the cylindrical bore for rotation about the central axis; and a toothed ratchet pawl (42); a cylindrical array of straight ratchet teeth arranged about one of the cylindrical bore or the drive member; and a pawl recess (36) arranged to support the pawl. The pawl may mesh with the ratchet teeth for transmission of rotation of the handle in a first direction to the drive member about the rotation axis or disengage from the ratchet teeth to decouple rotation of the handle in a second direction from the drive member. Support (37a, 37b, 46, 48, 50) for the pawl in the recess is shaped to accommodate divergence between the central axis and the rotation axis.

A wrench structure with a variable driving state includes a rod and a sleeve connected to the rod. An outer surface of the rod includes an accommodating slot, an engaging block, an elastic element, and a connecting portion. The engaging block and the elastic element are disposed in the accommodating slot. The connecting portion is adjacent to the accommodating slot and surrounds the outer surface of the rod. The sleeve includes a first ratchet portion, a second ratchet portion, and a non-ratchet portion located between the two ratchet portions. The sleeve can be selectively displaced relative to the rod to a first position, where the connecting portion is connected with the second ratchet portion, or a second position, where the connecting portion is adjacent to the non-ratchet portion. By controlling the relative positions of the rod and the sleeve, the driving state of the wrench structure can be switched.

The present invention may be used for rotating a polygonal object. A first wrench member may have a handle with two ends with a fixed jaw attached at a first end and with a cavity formed in the fixed jaw and first end. A second wrench member may be a movable jaw with a curved jaw attached to a ratcheting element. The ratcheting element may be slidably positioned in the cavity to position the curved jaw opposite the fixed jaw. The second wrench member may be constrained by the cavity and a cavity insert member to slide in said cavity about the center of an arc. The cavity insert member is positioned between a rearward wall of the cavity and the ratcheting element and retains the ratcheting element within the cavity.