Abstract: A torque tool with a segmented warning effect includes: a tool body having a sensing unit, a processing unit for receiving a sensed value of the sensing unit and comparing the sensed value with a predetermined value to output a comparison value; at least two warning intervals formed by the comparison value of at least two different warning ranges; a warning assembly for providing warning by a primary warning unit and at least one secondary warning unit; the primary warning unit uses at least two colors for different warning intervals, and at least two illuminators of each secondary warning unit to warn at least two stages, the primary warning unit provides a primary warning for the warning interval, and the secondary warning unit at each warning interval forms secondary warnings to let users know about the operating torque quickly.

Abstract: A setting method for an electronic torque tool is disclosed. The electronic torque tool includes a tool body that stores at least one operation set. The operation set includes at least one adjustable operation parameter of the electronic torque tool. The setting method can be used to adjust the operation parameter in the operation set and includes a setting step and a storing step. The setting step includes entering the operation set and adjusting the operation parameter therein. The storing step includes storing the adjusted operation parameter in the operation set directly after an operator quits the operation set or turns off the electronic torque tool during the setting step. The setting method allows the operation parameter in the operation set to be easily and rapidly set or adjusted, thereby making the electronic torque tool easy to use and operate.

Abstract: An electronic wrench includes a base body, at least one sensing element, a processor and at least one prompting unit. The base body includes a working head, and the sensing element is disposed at the base body to detect a working status of the working head so as to provide a sensing signal. The sensing signal includes at least one sensing value. The processor is electrically connected to the sensing element, and the processor includes at least one prompting lower limit value. The prompting unit is electrically connected to the processor and provides a working status prompt. When the sensing value is less than the prompting lower limit value or the sensing value is equal to the prompting lower limit value, the working status prompt is a first nonnumeric prompt.

Abstract: A ratchet wrench with a pushrod includes a base body, a ratchet and the pushrod. The base body includes a driving portion and a sliding path. The driving portion is disposed at one end of the base body, and includes a receiving space. The ratchet is disposed in the receiving space, and includes a continuous tooth-shaped structure. The pushrod is disposed in the sliding path, and includes two tooth portions and a pushrod cross section. One of the tooth portions is engaged to the continuous tooth-shaped structure. The pushrod cross section includes a first cross section and a second cross section. The first cross section is a rectangular shape. The second cross section is an arc shape and connected to the first cross section. The pushrod cross section has a first horizontal length and a first vertical length. The first vertical length is greater than the first horizontal length.

Abstract: A jointing structure includes a jointing member and at least two abutting members. The at least two abutting members are disposed on the jointing member. The jointing member includes a surface and a plurality of side surfaces surrounding the surface, and the at least two abutting members are disposed on at least two of the side surfaces respectively.

Abstract: An inertial rotational tightening device includes: a rotationally drivable main body, an annular engagement section being disposed on a circumference of the main body; an inertial member having an engagement hole axially formed through the inertial member, the engagement hole of the inertial member being detachably engaged with the engagement section of the main body, a retaining groove being formed on a circumference of the engagement section or a hole wall of the engagement hole, an insertion groove being formed on the hole wall of the engagement hole or the circumference of the engagement section; and an elastic retainer member inlaid and buckled in the retaining groove and the insertion groove. The inertial member is detachably connected with the main body. Different inertial members with different mass can be selectively mounted on the main body to change the moment of inertia and the rotational torque of the rotational tightening device.

Abstract: A torque tool for identifying locking state of torque adjustment mechanism includes: a tubular body; a tool head having a stem body fitted in the tubular body, a torque adjustment mechanism being used to adjust the torque of the torque tool, a handle with at least one display window being fitted around the tubular body; a locking mechanism for selectively locking the torque adjustment mechanism; a push unit positioned behind the locking mechanism; and a first identification area and a second identification area respectively formed on the locking mechanism and the push unit. When the locking mechanism is not pushed by the push unit, the first identification area is displayed through the display window. When the push unit pushes the locking mechanism to lock the torque adjustment mechanism, it is impossible to adjust the torque of the torque tool and the second identification area is displayed through the display window.

Abstract: A lock threaded assembly includes a bolt including a shank formed with a bolt head and having a threaded portion; at least one groove formed on the threaded portion; a nut including a threaded hole configured to secure to the threaded portion of the bolt; at least one trough formed on the threaded hole; and at least one engagement member being an elongated elastic strip body having a securing section and a received section, the securing section and the received section being able to elastically get closer to each other or move away from each other. When the groove is not aligned with the trough, the bolt and the nut are not locked by the engagement member; when the groove is aligned with the trough, the bolt and the nut are elastically locked by the engagement member.

Abstract: A rotatable fastening device disclosed in the present disclosure includes a rotating seat and an impact element. The impact element is one-way pivoted at the rotating seat. The rotating seat is rotated along a rotation axis and detachably connected between a driving tool and an element to be rotated. The weight and kinetic energy of the impact element will provide a one-way tangential impact force around the rotation axis with of rotation.

Abstract: A torque wrench with torque adjustment mechanism includes a tubular body and a torque adjustment mechanism disposed in the tubular body. The torque adjustment mechanism includes an abutting member, an adjustment member and an adjustment button. The abutting member has a first slope disposed at rear end of the abutting member in contact with a second slope disposed at a front end of the adjustment member. When adjusting the set torque value of the torque wrench, the adjustment button is rotated to drive the adjustment member to displace in a transverse direction of the tubular body. By means of the cooperation between the first and second slopes, the abutting member is displaced in a longitudinal direction of the tubular body to compress or release an elastic member positioned in front of the abutting member.

Abstract: A torque wrench with elastic member includes a tubular body in which an elastic member is disposed for adjusting the torque value of the torque wrench. The elastic member is in the form of a plate body having a front connection section, a rear connection section and at least one bent section positioned between the front and rear connection sections. The front and rear connection sections of the elastic member respectively abut against a click mechanism disposed in front of the elastic member and an adjustment mechanism disposed behind the elastic member, whereby the elastic member can be compressed or released to adjust the torque value of the torque wrench. The elastic member has a novel structure and can ensure the stability of the torque wrench in use and enhance the utility of the torque wrench.

Abstract: A rotatable fastening device includes a rotatable base and an impact member. The rotatable base rotates along a pivoting axis, and the rotatable base is removably connected with and driving a rotatable member. The impact member is removably connected to an outside of the rotatable base, and the impact member has at least one gravity unit projected outwardly therefrom. The gravity unit is driven by the rotatable base to rotate around the pivoting axis for generating a tangent impact force.

Abstract: A detachable fastening device includes a socket, a hollow disk and a positioning mechanism. The socket includes an external mounted base and at least one first depression located at the external mounted base. The hollow disk is detachably connected to the socket and includes an inner engaged wall coordinated with the external mounted base and at least one second depression located at the inner engaged wall. The positioning mechanism is received between the at least one first depression and the at least one second depression to position the socket and the hollow disk.

Abstract: A torque socket is provided. The torque socket includes a release mechanism that can be released when a torque thereof reaches a pre-determined value. The torque socket also includes a transmission module. The transmission module includes transmission members and a transmission shaft that are coupled with the release mechanism. The transmission members are cooperated with the release mechanism to determine the transmission shaft transfer torque or not to automatically release the torque.

Abstract: A folding torque wrench includes a bar body, a connection rod the front end of which is pivotally connected with the bar body, a tubular body fitted on the connection rod and a torque adjustment mechanism having at least one elastic member and an adjustment member. A threaded section of rear end of the connection rod is screwed in a threaded hole of the adjustment member. The threaded section of the connection rod and the threaded hole of the adjustment member are formed as a first threaded section and a second threaded section. The first threaded section is at least double-start threads. When rotating the adjustment member by one circle, the adjustment member is moved in the longitudinal direction of the connection rod by a travel, which is over two time the pitch of the first threaded section. The torque value of the wrench can be quickly greatly adjusted only by means of rotating the adjustment member by few circles.

Abstract: A one-way inertial rotational device includes: a rotary seat; an inertial member pivotally rotatably disposed on the circumference of the rotary seat via a pivot hole, a circumference of the rotary seat and a hole wall of the pivot hole of the inertial member being defined as a first circumferential face and a second circumferential face; and a one-way transmission mechanism having at least one one-way transmission tooth, at least one elastic member and multiple engagement teeth. The engagement teeth are annularly disposed on the second circumferential face. The transmission tooth is displaceably disposed on the first circumferential face. The elastic member keeps the transmission tooth engaged with the engagement teeth. Each engagement tooth has a tooth crest and a tooth height. The width of the tooth crest is larger than the tooth height so that the loss of the rotational energy is reduced to achieve greater rotational torque.

Abstract: An impact spinning hand tool includes a hollow body, a first lever and a first elastic member. The hollow body includes a first position-limiting structure. The first lever includes a driving end exposed outside the hollow body, a spinning structure and a forcing end contained in the hollow body. The forcing end has a second position-limiting structure that is detachably limited by the first position-limiting structure. The first elastic member is pushed against the forcing end and the first position-limiting structure through two ends thereof. The first lever is located at a first position and presses the first elastic member to store an elastic restoring force when being connected with the hollow body. When the second position-limiting structure is released, the elastic restoring force drives the first lever to move to a second position so as to allow the spinning structure to perform an impact spinning action.

Abstract: A hand tool includes a handle, a press member, a shank body and multiple latch assemblies. The handle is formed with a receiving cavity and a locating hole in communication with the receiving cavity. The press member is movably disposed in the locating hole. The shank body is fitted in the receiving cavity and movable relative to the handle. The shank body is formed with multiple sockets. The latch assemblies are respectively mounted in the sockets. When the shank body is moved, (for example, slid or rotated) relative to the handle to make one of the sockets aligned with the locating hole, the latch assembly latches the shank body with the handle. When pressing the press member, the latch assembly unlatches the shank body from the handle, the shank body is movable relative to the handle.

Abstract: An inertial rotational tightening device includes: a rotationally drivable main body, an annular engagement section being disposed on a circumference of the main body; an inertial member having an engagement hole axially formed through the inertial member, the engagement hole of the inertial member being detachably engaged with the engagement section of the main body, a retaining groove being formed on a circumference of the engagement section or a hole wall of the engagement hole, an insertion groove being formed on the hole wall of the engagement hole or the circumference of the engagement section; and an elastic retainer member inlaid and buckled in the retaining groove and the insertion groove. The inertial member is detachably connected with the main body. Different inertial members with different mass can be selectively mounted on the main body to change the moment of inertia and the rotational torque of the rotational tightening device.

Abstract: A hand tool includes a handle, a press member, a shank body and multiple latch assemblies. The handle is formed with a receiving cavity and a locating hole in communication with the receiving cavity. The press member is movably disposed in the locating hole. The shank body is fitted in the receiving cavity and movable relative to the handle. The shank body is formed with multiple sockets. The latch assemblies are respectively mounted in the sockets. When the shank body is moved, (for example, slid or rotated) relative to the handle to make one of the sockets aligned with the locating hole, the latch assembly latches the shank body with the handle. When pressing the press member, the latch assembly unlatches the shank body from the handle, the shank body is movable relative to the handle.