Abstract: A reversible ratchet wrench includes a moveable pawl connected to a handle via a linkage such that the pawl cannot become disengaged from the hand during operation of the wrench. The handle is pivotally attached to housing forming a portion of a head of the wrench, where pivoting of the handle between a first position and a second position switches a position of a pawl between a first position and a second position to thereby change an operating direction of the wrench. A distance of movement of a proximal end of the handle, opposite a head of the wrench, during switching is confined to a limited range by elongating the wrench head and extending a distance between a connection point of the handle to the pawl and the pivotal connection of the handle to the housing.

Abstract: A wrench device includes a handle having two pivoting holes opened, a clamp member having an enclosing portion and two extension portions, the enclosing portion enclosing a driving member, the two extension portions having a gap communicating with the enclosing portion and two openings, a pivoting rod being inserted into each corresponding opening and pivoting hole, the driving member having an adapting hole and a fastening groove, the enclosing portion engaged with the fastening groove. Under this arrangement, when the handle is rotated in one direction, the enclosing portion of the clamp member tightly clamps the driving member, so that the driving member is rotated by the rotation of the handle; when the handle is rotated in another direction, the driving member is not rotated by the enclosing portion of the handle.

Abstract: A wrench device includes a handle having two pivoting holes opened, a clamp member having an enclosing portion and two extension portions, the enclosing portion enclosing a driving member, the two extension portions having a gap communicating with the enclosing portion and two openings, a pivoting rod being inserted into each corresponding opening and pivoting hole, the driving member having an adapting hole and a fastening groove, the enclosing portion engaged with the fastening groove. Under this arrangement, when the handle is rotated in one direction, the enclosing portion of the clamp member tightly clamps the driving member, so that the driving member is rotated by the rotation of the handle; when the handle is rotated in another direction, the driving member is not rotated by the enclosing portion of the handle.

Abstract: A hand tool includes a head in which a driving member is received and a pawl is engaged with the driving member. A handle has a substantially round driving end which is rotatably received in a pivoting recess in the head and a pushing member protrudes from the driving end and is engaged with the pawl. The handle includes two contact sides which alternatively contact two outward tapered sidewalls of a driving recess in the driving end when operating the handle. The pawl is shifted to contact the driving member by the teeth at different positions of the pawl when operating the handle to change the driving direction of the driving member. No switching member is connected to the pawl and protrudes from the top surface of the head of the hand tool.

Abstract: A reversible ratchet wrench includes a drive shank having a support base, an open shell pivotally mounted on the support base, a ratchet wheel having a plurality of ratchet teeth, a pawl member having a sliding face slidably mounted on the support base and a toothed engaging face meshing with the ratchet teeth, and a cover to cover the ratchet wheel, the pawl member and the support base of the drive shank. The shell is pivoted relative to the support base to change the operation direction of the ratchet wheel. Thus, the user only needs to hold and pivot the shell relative to the support base to change the operation direction of the ratchet wheel, so that the user can change the operation direction of the ratchet wheel easily and quickly.

Abstract: The present invention discloses a ratchet wrench comprising a head (1) having a driving aperture (2) for engaging a drive means (4) rotatable therein. A handle (3) mounted for tilting movement in relation to said head (1), providing a first state where the drive means (4) is allowed to freely rotate and a second state where said drive means is engaged by said ratchet wrench for driving of the drive means. Said handle (3) is movable, into and out from a mounting position in the longitudinally direction of the handle (3). One end of said handle (3) is moveable through a first aperture (6) and further through a second aperture (7) of the head (1), said first and second apertures (6, 7) extending laterally relative the longitudinal axis of the driving aperture (2).

Abstract: The present invention provides a wrench having a handle integral with a ratchet head. The ratchet head defines a chamber having a generally circular sidewall. An annular rotor having radial teeth about an outer surface thereof is located in the chamber. The rotor teeth engage a set of teeth extending radially inward from the sidewall of the chamber. A biasing element, such as a leaf spring, is provided to urge the rotor teeth into engagement with the sidewall teeth. Preferably, the sidewall teeth will be configured having progressively increasing heights in the direction in which the rotor turns during ratcheting.

Abstract: A ratchet tool includes a ring-shaped head having a toothed member rotatably received therein and a first end of a handle is pivotally inserted in the ring-shaped head. A pawl is connected to the first end of the handle and pivotally engaged with the toothed member. Two springs are received in the ring-shaped head and contact two sides of the handle.

Abstract: A ratchet tool includes a head having a hole for a driving member being engaged therewith and an open end in which an end of a handle is pivotably engaged. A cover plate is mounted to the head for retaining the driving member. Two sets of spring and bead are respectively installed in an underside of the cover plate and a surface of the head and the two beads are respectively engaged with two protrusions extending from two opposite sides of the end of the handle. A pawl is connected to the end of the handle and has two groups of engaging teeth no two ends thereof so to be alternatively engaged with the teeth in the driving member. The protrusions are forced to move over the two beads by pivoting the handle and two sides of the end of the handle contact against the two insides of the open end of the head so as to effectively drive the driving member.

Abstract: A leverage-release type silent wrench structure comprised of a ratchet wheel and a torsion handle having a hinge section at one end that is situated next to the ratchet wheel. A clutch block curves upward from one side of the hinge section and a toothed surface consisting of a plurality of teeth is disposed along the arc-shaped inner side of the clutch block that provides for enmeshment with the ratchet wheel. A mounting base and a protective cover in an aligned arrangement accommodate the positioning of the ratchet wheel and the hinge section of the torsion handle within them. A linkage component pivotably conjoins the mounting base, the protective cover, and the hinge section of the torsion handle and, furthermore, such that the linkage component serves as the center point of rotation of the torsion handle.

Abstract: A ratchet tool includes a ring-shaped head having a toothed member rotatably received therein and a first end of a handle is pivotally inserted in the ring-shaped head. A pawl is connected to the first end of the handle and pivotally engaged with the toothed member. Two springs are received in the ring-shaped head and contact two sides of the handle.

Abstract: A leverage wrench includes a frame seat having a guide seat which is provided with a position-confining hole. The guide seat is pivoted with two inner support plates such that a guide bolt of the inner support plates is received in the position-confining hole. The frame seat is pivoted with two outer support plates which are in turn pivoted with the inner support plates. The inner support plates are jointly fastened to a movable lever. The outer support plates are jointly fastened to a fixed handle.

Abstract: A leverage-release type silent wrench structure comprised of a ratchet wheel and a torsion handle having a hinge section at one end that is situated next to the ratchet wheel. A clutch block curves upward from one side of the hinge section and a toothed surface consisting of a plurality of teeth is disposed along the arc-shaped inner side of the clutch block that provides for enmeshment with the ratchet wheel. A mounting base and a protective cover in an aligned arrangement accommodate the positioning of the ratchet wheel and the hinge section of the torsion handle within them. A linkage component pivotably conjoins the mounting base, the protective cover, and the hinge section of the torsion handle and, furthermore, such that the linkage component serves as the center point of rotation of the torsion handle.

Abstract: A screwdriver grip including a tool section, a connecting section and a grip. A front end of the tool section is disposed with a working section and a rear end of the tool section is formed with a pivot section pivotally connected with a pivot cavity of the connecting section, whereby the tool section can be pivotally rotated relative to the connecting section. The grip is back and forth sliably fitted on the connecting section. A locating member is disposed between the connecting section and the grip. When the grip is moved forward or rearward to a certain position, the locating member fixedly locates the grip on the connecting section. The grip can be moved rearward and the connecting section can be pivotally rotated by a certain angle for a user to easily hold the grip. Alternatively, the grip can be moved forward to shorten the length of the screwdriver.

Abstract: A leverage wrench comprises a frame seat having a guide seat which is provided with a position-confining hole. The guide seat is pivoted with two inner support plates such that a guide bolt of the inner support plates is received in the position-confining hole. The frame seat is pivoted with two outer support plates which are in turn pivoted with the inner support plates. The inner support plates are jointly fastened with a movable lever. The outer support plates are jointly fastened with a fixed handle.