Disclosed is a manual tool outputting torque bidirectionally. The manual tool includes a handle (100), a main shaft (200), a transmission device (300), a ratchet tooth device (400) and a ratchet wheel switching device (500), wherein when a ratchet wheel switching ring (501) of the ratchet wheel switching device (500) is located at a clockwise position, no matter whether the handle (100) rotates in a clockwise direction or in an anticlockwise direction, the main shaft (200) rotates in the clockwise direction to output torque from the handle (100); when the ratchet wheel switching ring (501) of the ratchet wheel switching device (500) is located at an anticlockwise position, no matter whether the handle (100) rotates in the clockwise direction or in the anticlockwise direction, the main shaft (200) rotates in the anticlockwise direction to output torque from the handle (100); and when the ratchet wheel switching ring (501) of the ratchet wheel switching device (500) is located at a fixed position, the main shaft (200) and the handle (100) rotate in the same direction to output torque from the handle (100), with the output torque being large. The manual tool outputting torque bidirectionally can output the torque by bidirectional rotation of the handle, with the output torque being large, while torque output by an existing screwdriver having bidirectional output is small.

A ratchet wrench assembly (10) is provided that includes a head (12), a ratchet gear (130), a yolk (100), one or more drive pins (122,120), a body (80), and a ratchet pawl (140). The body (80) may include one or more drive edges (84) and a fastener drive member (20). A first drive edge (84) may be engaged with a first drive pin (122) such that reciprocation of the yolk (100) causes rotation of the body (80) and the fastener drive member (20) about the axis of rotation via engagement of the first drive pin (122) between the inner surface of the yolk ring (102) and the first drive edge (84). The ratchet pawl (140) may include a first ratchet tooth (144) configured ratchet against gear teeth (132) of the ratchet gear (130) to permit movement of the body (80) relative to the head (12) in a first rotational direction and engage the gear teeth (132) to prevent movement of the body (80) relative to the head (12) in second, opposite rotational direction.

A ratchet wrench handle includes an operation piece which is composed of two partial members including a claw member and a receiving member. The ratchet wrench handle is configured such that, when positive rotation-aimed operation teeth of the claw member are engaged with ratchet teeth of a rotation member, a wedge effect produced by the positive rotation-aimed operation teeth of the claw member and a positive rotation-aimed sloping face of the claw member is configured to make the rotation member stop rotation, which allows an adapter to be rotated in a positive direction.

Various designs for a ratchet mechanism and tools incorporating a ratchet mechanism are described. One embodiment relates to a ratchet with each layer of the gear stack includes teeth rotationally offset from each other increasing the number of circumferentially spaced gear tooth surfaces that are available to engage with the pawl teeth. Another embodiment relates to a ratchet with multiple pawls placed in series such that the pawls are spaced circumferentially around the gear.

A wrench and a method for manufacturing the same are provided. The wrench includes a main body and a covering member. The main body includes a head portion and a handle. The head portion has a receiving groove. The covering member covers the receiving groove. One of the main body and the covering member has a first washer and a second washer integrally disposed thereon. The first washer and the second washer are abutted against and between the main body and the covering member. Therefore, shapes of the first washer and the second washer are designable and can be directly formed on any position of the wrench.

A wrench and a method for manufacturing the same are provided. The wrench includes a main body and a covering member. The main body includes a head portion and a handle. The head portion has a receiving groove. The covering member covers the receiving groove. One of the main body and the covering member has a first washer and a second washer integrally disposed thereon. The first washer and the second washer are abutted against and between the main body and the covering member. Therefore, shapes of the first washer and the second washer are designable and can be directly formed on any position of the wrench.

A torque wrench including a head, a handle, a primary beam, a secondary beam, and a torque adjustment mechanism. The primary beam couples the head and the handle for co-rotation about the rotational axis and the primary beam includes a first end adjacent the head and a second end adjacent the handle. The secondary beam is coupled to the head for rotation with the head about the rotational axis and the secondary beam is movable relative to the primary beam and the handle. The torque adjustment mechanism adjusts a torque setting of the primary beam relative to the secondary beam. The torque adjustment mechanism includes a thumb adjustment wheel that a user rotates about a first axis to adjust the torque setting by moving the second end of the primary beam relative to the handle along a second axis offset from the first axis.

A wrench may include a head, a drive tang that engages a work piece, a locking detent operably coupled to the drive tang, and a release button configured to control operation of the locking detent. The release button may be movable between a locked position where the locking detent locks the work piece to the drive tang and an unlocked position where the detent permits removal of the work piece from the drive tang. The wrench may also include a slide lock member configured to slide along a second direction between an engaged position and a disengaged position. In the engaged position, the slide lock member may prevent movement of the release button, and, in the disengaged position, the slide lock member may be disengaged from the release button to permit movement of the release button from the locked position to the unlocked position.

A ratchet wrench structure includes a body having a head portion with a first, second, and third housings connected; a ratchet block rotatably disposed in the first housing and peripherally provided with plural teeth; two locking members having a flat top surface with a pillar thereon and an opposite flat bottom surface, and disposed in the third housing and laterally movable for engaging the teeth, with a resilient member between the two locking members; a direction controller disposed in the second housing and having a direction controlling recess for receiving the pillars; and a positioning device. The direction controlling recess has an opening end expanding outward. The positioning device positions the direction controller, so as to drive the two locking members to engage the ratchet block. Therefore, the ratchet block is controlled to drive an object in clockwise or counterclockwise direction.

A rapid adjustable wrench includes a body, a movable jaw, and an engaging device. The body has a fixed jaw, a sliding groove, and a containing recess. The movable jaw includes a sliding portion movably arranged in the sliding groove and a first toothed portion adjacent to the sliding portion. The engaging device includes an engaging member and a toggle switch. The engaging member is arranged in the containing recess and has a second toothed portion selectively engaged with the first toothed portion. One end of the toggle switch is connected to the engaging member. The toggle switch is able to drive the engaging member to move between an engaging position and a releasing position.