An torque warning structure is adapted for a rotary hand tool, and the rotary hand tool contains at least one rotatable pulling bar, one of the at least one rotatable pulling bar includes a fulcrum portion and at least one forcing portion. The torque warning structure contains at least one resilient element which is solely mounted or is jointly stacked on the at least one forcing portion, and each of the at least one resilient element has a pushing portion and a contacting portion between which a height difference is defined, the contacting portion contacts the at least one forcing portion, wherein the pushing portion drives the rotary hand tool to rotate, and when a pushing force of the pushing portion of said each resilient element is more than a deformation resistance of said each resilient element, said each resilient element deforms and makes warning sound.

Provided is an apparatus for applying a specific amount of torque, comprising a body, a torque wheel, rotationally affixed to the body, comprising a plurality of teeth around an outer edge and a central spring mechanism affixed to and enclosed within the body, the central spring mechanism, comprising a spring stop and a torque spring, the torque spring comprising a torque spring end wherein the torque spring end engages the plurality of teeth and wherein, in a first rotational direction, the engagement of the torque spring end in the plurality of teeth prevents the torque wheel from rotating with respect to the body below a specified amount of torque and wherein, above the specified amount of torque in a second rotational direction, the torque spring flexes enabling the torque spring end to disengage from the plurality of teeth and enabling the torque wheel to rotate with respect to the body.

A vibrating wrench includes a housing, a driving head, a handle and a vibrating structure. The housing includes a hollow space. The driving head is disposed at one end of the housing. The handle is disposed at the other end of the housing and includes an inner wall and a containing space. The containing space is communicated with the hollow space. The vibrating structure is disposed in the containing space of the handle and includes a vibrating motor and a medium element. The medium element is fully connected or partially connected to an outer surface of the vibrating motor. The inner wall of the handle is fully connected or partially connected to the medium element.

By way of non-limiting example, the present approaches use a combination of at least a load cell sensor and a strain gauge sensor to provide near real time and real time data to a microprocessor for evaluation of the torque applied to a work piece. The microprocessor is further configured to communicate data obtained from the at least two sensors to a remote data monitoring, storage or analysis platform. In one or more implementations, the data obtained by the microprocessor from the at least two sensors include the ability to track if any adjustments are erroneously made to the torque application tool itself or if the torque application tool is configured to send an incorrect signal that corresponds to the amount of torque applied to a workpiece.

A programmable screw driver and method for affixing screws into bone is disclosed. The screw driver includes a torque sensor for measuring torsional input during screw insertion, a rotational motion sensor for measuring the rotation of the screw driver, and a microprocessor. Once a surgeon rotates a screw to be affixed to the bone, the torque sensor measures the torque and sends this information to the microprocessor. Once a predetermined torque level is attained, the microprocessor begins to measure subsequent rotation of the screw driver until a predetermined rotational limit, thereby causing a signal to be sent to alert the surgeon to stop tightening.

A tool and method of securing a clamp is provided. The tool includes a first handle having a first jaw portion on one end. An arm is pivotally coupled to the first handle, the having a second jaw portion on one end. A second handle is adjacent the first handle. A force adjustment mechanism is rotatably coupled between the arm and the second handle. The force adjustment mechanism has a biasing member operably coupled between the arm and an adjustment member, the force adjustment mechanism further having at least one bearing member disposed between the arm and the adjustment member. The second handle is arranged to rotate relative to the arm based at least in part on a force applied on the second handle by the biasing member via the at least one bearing member.

A torque wrench is provided that includes a radio frequency identification (RFID) or near field communication (NFC) sensing mechanism that enables the wrench to receive information regarding the different attributes of a shaft that is operably connected to the wrench. The sensing mechanism can communicate with a corresponding RFID/NFC tag located in a shaft that is releasably connected to the wrench in order to receive information from the tag on the status of the shaft and set points for the application of torque using the shaft. Information can also be written and stored on the tag concerning the length of time the shaft has been in use.

A hand tool for fastening a fastener, such as a screw. The hand tool comprises a handle and a rotatable fastening head connected to a first end of the handle, and engaged with a manually driven actuator. The hand tool further comprises a fixed fastening head connected to a second end of the handle, which is configured to apply a configurable fastening torque to the fastener The fixed fastening head is selectively pivotable with respect to the handle about an axis parallel to the center axis of the fixed fastening head.

Use of multiple-slope and/or multiple-offset mechanism or equivalent to address the issues with current mechanical clickers that have single-slope spring mechanism. The varying-slope can be a continuously varying-slope non-linear spring, or a combination of discretely varying multiple-slope springs. This invention is useful for clicker type torque wrenches, clicker type torque screw drivers, beam type torque wrenches, beam type torque screw drivers and shock absorbers. The present invention is equally applicable to clickers that click in both the CW (clockwise) and CCW (counterclockwise) directions or clickers that click only in one direction. The invention is generally characterized by placing a non-linear spring or combination of springs in the tool body to achieve multiple slope operation rather than using one single slope spring.

A torque wrench as a ratchet instrument for medical technology, including receiving opening which has head region, neck region adjoining head region, rod-shaped actuating lever fastened to neck region for application of torque to the head region, and enclosure forming receiving opening of head region. Furthermore, torque wrench includes spring clip and latching lug formed thereon. The latching lug in rest position of latching lug protrudes into receiving opening and in entraining portion of latching lug is intended to interact with counterpart surface of insertion instrument inserted into enclosure during rotation in tightening direction of actuating lever in entraining position. The latching lug is intended to move into release position during rotation contrary to tightening direction against force of spring clip, in order to provide free running between head region and insertion instrument. The enclosure has break extending over entire cross-section of enclosure and forms spring clip.