Abstract: A powered adjustable jaw wrench comprises a wrench body having a handle portion and a head portion defining a stationary jaw, a movable jaw reciprocally mounted to the head portion, a driven mechanism operably connected to the movable jaw, and a drive mechanism mounted to the body member and including a power source and an indexing mechanism. The driven mechanism includes a worm driving the movable jaw and an indexing wheel operably connected to the worm gear. The indexing mechanism is driven by the power source and includes an oscillating pallet member. The pallet member incrementally drives the indexing wheel so as to convert an oscillating movement of the pallet member into an incremental rotatable movement of the indexing wheel.

Abstract: A device and method for rapid hardware sizing includes a ruler-like body having a fixed end and a distal end, a fixed jaw at the fixed end, and a sliding jaw opposite the fixed jaw being slidably connected to the body such that the sliding jaw slides there along from a point immediately adjacent to the fixed jaw to the distal end. A digital logic calculation and display means is secured to the sliding jaw such that it moves along the body with the sliding jaw. A measuring means is in communication with the digital logic calculation and display means, and measures a distance between the fixed and sliding jaws. The distance is then communicated to the digital logic calculation and display means and selectively displayed thereon.

Abstract: An open ended adjustable clamping device useful as a wrench comprised of a supported jaw movably attached to a supporting jaw. Attached to one or both jaws is an additional sliding jaw movable along a separate axis and driven either simultaneously in a synchronized relationship with the movement of the supported jaw or by a separate unsynchronized movement in order to close upon a hexagonal fastener from two axes. Each jaw has two clamping faces configured to match two sides of a hexagon. Each jaw is positioned in relationship to one another in order to form a hexagon. The two axis movement is driven by a single application of force by the user and may transmitted from one jaw to the next by a system of ramps and wedges or other transmission means capable of maintaining the correct ratio of movement so as to maintain the geometric relationship of the jaws. Alternatively the user applied force may be used to cause movement along one axis first, and then redirected to mobilize jaws along a second axis.

Abstract: An adjustable spanner comprises a handle; one end of the handle having an enlarged head; an upper side of the head being formed with a sliding surface; a fixing jaw extended from one end of the head; the fixing jaw having a fixing surface; a fixing protrusion being formed at a lower side of the fixing surface; a movable jaw installed in the sliding trench; the movable jaw having a movable surface; a directional control element being installed in the receiving groove and engaged to the movable jaw; a movable protrusion being formed at a lower side of the movable surface; a line being defined from a top end of the fixing surface to the sliding surface; a line X being defined to be an axial line of the sliding trench, the angel ? between the line Y and the line X is between 65°˜85°, preferably is 74°.

Abstract: An adjustable wrench for quickly adjusting the width of a jaw thereof, comprising a stationary body (1), having a chamber (12) at an upper portion thereof; a movable body (2), having a worm (13) at a lower portion thereof, being movable transversely inside the chamber (12); a driving mechanism (100) located within the chamber (12), including a worm gear (10) with a worm gear shaft (20), engaging the worm (13), a first gear (3) mounted at an end of the worm gear shaft (20) of the worm gear (10), a connection shaft (9) located under the worm gear shaft (20) in parallel, and a second gear (4) mounted at an end of the connection shaft (9) to engage with the first gear (3); and a traction mechanism (200) connected to the connection shaft (9), the traction mechanism (200) driving the second gear (4) to rotate by driving the connection shaft (9), which drives the first gear (3) to rotate, hereby rendering the worm (13) to move inside the chamber (12).

Abstract: A pipe wrench having a movable arm mounted thereon. The arm is pivotally attached to the back of the wrench and may be foldable for storage or pivoted to an in-use, support-stand position to allow the wrench to be self-supporting when desired.

Abstract: A locating structure of an adjustable open wrench including: a main body having a handle and a head section, a first end of the head section being fixedly connected with the handle; a first jaw disposed on a second end of the head section; a second jaw slidably disposed on the second end of the head section and linearly reciprocally movable relative to the first jaw for changing a pitch between two opposite faces of the second and first jaws; an adjustment member including a second rack fixedly disposed at one end of the second jaw, a driving threaded rod with a predetermined guide travel being pivotally located in the head section and engaged with the second rack, whereby via the second rack, the driving threaded rod can be rotated to drive the second jaw to linearly move; and a locating member including a locating body disposed in the head section and reciprocally movable between a locating position and a releasing position.

Abstract: The wrench comprises a handle that is pivotably connected to a body portion. The body portion supports a fixed jaw. A movable jaw is slidably supported on the body portion such that the movable jaw can move relative to the fixed jaw to vary the spacing between the jaws. When the handle is rotated in a first direction the spacing between the jaws increases to allow the jaws to slip over a work piece and provide a ratchet function. When the handle is rotated in a second direction opposite to the first direction the movable jaw is moved towards the fixed jaw to close on and grip the workpiece. In one embodiment a link moves the movable jaw relative to the fixed jaw and forms part of an dead/over-center locking mechanism.

Abstract: An electric wrench comprises a main body with a head portion, a handle and a neck portion, a worm gear disposed in a receptacle in the head portion and engaged with a movable jaw on top of the head portion, a flexible member disposed between the worm gear and a major gear wheel, a motor housed in a first open space in the main body and connected to a minor gear wheel below the major gear wheel through a second transmission member electrically connected to a battery in a second open space in the main body, a switch unit electrically connected the motor for controlling the activation of the motor and a side cover detachable for covering the first and the second open spaces. Thereby, the motor can drive a slide motion of the movable jaw through the various transmission parts so as to change the clip size of the electric wrench.

Abstract: A one-way monkey wrench includes a handle, a stationary jaw, a movable jaw, a worm and a one-way mechanism. The handle defines a groove, an opening in communication with a section of the groove and a tunnel. The stationary jaw is formed on the handle. The movable jaw is movably installed on the handle, and includes a rack movably positioned in the groove. The worm is rotationally positioned in the opening and engaged with the rack. The one-way includes a tongue movably positioned in the tunnel. The tongue includes an end, a sliding facet near the end and a pushing facet near the sliding facet. The sliding facet slides on an object when the one-way monkey wrench is rotated in a direction. The pushing facet pushes the object when the one-way monkey wrench is rotated in an opposite direction.

Abstract: An adjustable wrench comprising a handle, a fixed jaw non-movably attached to the handle and a movable jaw slidably attached to the handle. One of the fixed jaw and the movable jaw has a generally V-shaped recess. The other of the fixed jaw and the movable jaw has a protrusion aligned with a center line of the V-shaped recess.

Abstract: A adjustable spanner includes a main body formed with a fixed jaw and a slideway, an adjustment screw rotatably mounted in the main body, a movable jaw movably mounted on the main body and formed with a neck portion having a rack slidably mounted in the slideway and engaged with the adjustment screw, and two magnetic members mounted between the slideway and the movable jaw. Thus, the movable jaw is movable in the slideway smoothly by the repulsive effect between the magnetic members and the movable jaw or the main body, thereby facilitating the user operating the adjustable spanner.

Abstract: An adjustable wrench comprises a handle, a head portion formed at one end of the handle, and an adjusting unit. The head portion further includes a fixed jaw and a movable jaw, which forms a clip surface for clipping a screwed part. The movable jaw is provided with a slide rod at a bottom side thereof that is retained along a slot extended transversely across the head portion. The adjusting unit controls the displacement of the movable jaw along the slot. The ratio of a maximal outer width to a maximal inner width is selected from three ranges so that the operation of the wrench within a limited space can be facilitated, attaining the goal of quickly loosening the screwed part.

Abstract: A tool for aligning a door hinge with the edge of the door to which it is mounted comprising a bar having a wrench on each end of the bar. The faces of each jaw of the respective wench are contoured to fit around a single knuckle of the hinge. The bar has a slit arranged to permit the jaws to open or close around the surface of a knuckle of the door hinge. A screw through the bar is arranged to permit tightening the jaws onto the knuckle when it is required to apply force to the hinge or loosen the tool when it is required to slip the tool off the hinge.

Abstract: An adjustable wrench includes a fixed body having a first end formed with a fixed jaw, a mediate portion formed with a mounting portion and a second end formed with a receiving recess, and a movable body movably mounted on the fixed body and having a first end formed with a movable jaw facing the fixed jaw and a second end formed with a mounting edge slidably mounted on the mounting portion. Thus, the fixed body has a substantially H-shaped mounting portion, and the movable body has a substantially C-shaped mounting edge slidably mounted on the mounting portion of the fixed body, so that the movable body is mounted on the fixed body rigidly and stably.

Abstract: An adjustable wrench including a fixed jaw, a movable jaw, a handle, a shaft member and a stopper pin. The front end of the handle is pivotally connected with the fixed jaw. When the handle is reciprocally pivotally swung, the stopper pin is driven by the handle to reciprocally move toward the stopper section or away from a stopper section of the shaft member. Also, by means of the spring fitted on the shaft member disposed in the main passage of the fixed jaw, after the movable jaw is slightly opened, the movable jaw will be immediately restored to hold the bolt or nut. Therefore, the bolt or nut can be continuously wrenched at one time without troublesome operation. The adjustable wrench has fewer components which are easier to process and assemble.

Abstract: An adjustable wrench 10 comprises a body 12 including a stationary jaw 22, an adjustable jaw 32, a recess 28 and a handle 27. A knurl 30 including a worm 42 is rotatably mounted on an axle 38 within recess 28. The adjustable jaw 32 includes a plurality of teeth 52 that mesh with worm 42 for driving the adjustable jaw 32 towards or away from stationary jaw 22. The adjustable wrench 10 further includes a receiving channel 52 formed at an angle to the knurl 30 within body 12. A means for braking 54 is inserted within the receiving channel 54 for removably engaging directly with worm 42 thus restricting the worm 42 from rotating and preventing the adjustable jaw 32 from moving. A means for locking 70, 76 is mounted on body 12 and interfaces with the means for braking 54 for preventing the means for braking 54 from moving. One embodiment of the means for braking 54 comprises a thumbwheel 58 and friction stop 60.

Abstract: A multi-functional tool comprising an extendable power tool handle unit with an interchangeable connect feature able to receive and power various size interchangeable, adaptable adjustable wrench head units and other adaptable tool attachments. The interchangeable wrench head units are easily connected and disconnected to the power tool handle unit. Each interchangeable adjustable wrench head unit has a self-contained transmission connectible to and powered by the adaptive power handle unit. The interchangeable wrench head units comprise of a moveable jaw, a stationary jaw, and a worm gear. The worm gear is meshed with a rack of the moveable jaw and the worm gear is driven by a motor and transmission. Activation of the motor produces linear reciprocating motion of the adjustable jaw. A power source from the handle provides the power to a control switch. The switch controls the function of the adjustable wrench heads and other powered tool attachments.

Abstract: The specification discloses a modified nut assembly and locking assembly for locking the shank of a wrench in place. The nut assembly preferably includes a nut for engaging and disengaging the shank of the wrench and a spring for biasing the nut to a position where the shank of the wrench is locked in place. Threads internal to the nut matingly engage threads on the shank of the wrench when in a locked position, and grooves internal to the nut allow the shank of the wrench to slide freely through the nut when in an unlocked position. The locking assembly preferably includes a housing, a sliding portion, a locking portion, and a spring. The sliding portion and locking portion preferably abut each other within the housing. The spring is preferably located in the sliding portion and extends from the sliding portion to the shank of the wrench.

Abstract: A display device is connected to a head of a wrench including a fixed jaw and a movable jaw. A variable electric resistor is connected to a side of the head and electrically connected to the display device. The movable jaw has a contact member which is movably in contact with the variable electric resistor. The changes of the value of electric resistance of the variable electric resistor is transformed into digitals to show the distance between the fixed jaw and the movable jaw, that is, the size of an object clamped between the fixed jaw and the movable jaw.

Abstract: A bi-directional adjustable spanner with a driving roller comprises a head and a handle. The head includes a movable jaw slidably received within a sliding groove of the head; an adjustable sliding rod; a retaining jaw and a driving roller. The retaining jaw haS a receiving chamber; one side of the receiving chamber having an opening facing the movable jaw. The receiving chamber has a straight receiving groove with a U shape end; the receiving chamber being communicated to the straight receiving groove. The driving roller is received in the receiving chamber of the retaining jaw; and a part of the driving roller protruding out of the opening of the receiving chamber towards the movable jaw. An elastomer is received within the receiving groove. A resisting pin of the elastomer resists against the driving roller. A cover sheet is screwed to the opening of the retaining jaw by a screw.

Abstract: An adjustable wrench comprising a moveable jaw, a stationary jaw, and a worm gear driving the moveable jaw. The worm gear is, in turn, meshed with a rack of the moveable jaw and is driven by a reversible servomotor. Activation of the servomotor produces linear reciprocating motion of the moveable jaw. The adjustable wrench further includes a positioning device provided for limiting a travel of the moveable jaw in at least one direction away from or toward the stationary jaw. Preferably, the positioning device includes a first preset stop for limiting a travel of the moveable jaw in the direction toward the stationary jaw to define an inward limit of travel of the moveable jaw and a second preset stop for limiting a travel of the moveable jaw the directions away from the stationary jaw to define an outward limit of travel of the moveable jaw.

Abstract: A side-entry, adjustable, ratcheting wrench has a first jaw member having an interior portion, a second jaw member slidingly engaged with the first jaw member, a spool disposed in the interior portion of the first jaw member, the spool having a worm gear along a first lengthwise outer portion and a series of concentric grooves along a second lengthwise outer portion, the worm gear for adjustment of the second jaw member, and a handle having a series of first projections engaged with the concentric grooves when the wrench is at a working position and disengaged from the concentric grooves when the wrench is at a ratcheting position.

Abstract: An adjustable spanner comprises a holding portion installed at one end of the spanner body; a retaining jaw installed at another end of the spanner body; a movable jaw installed to the retaining jaw; the movable jaw being slidable along a slide track at a head portion of the spanner body. Two sides of the upper end of the slide track are formed with respective auxiliary projecting track. Two lower sides of a lower edge of the movable jaw are formed with respective slopes so as to enhance the strength of the structure. The slopes are configured to be matchable to the two auxiliary projecting tracks. Each auxiliary projecting track is extended from a respective upper surface of the slide track with an angle between 60 to 85 degrees so as to enhance the strength of the adjustable spanner.

Abstract: Adjustable wrenches have been in use for more than 100 years. They have been “slipping out of adjustment” for the same time frame. Many solutions to this problem have been proposed, some have been patented. This is my offering.

Abstract: An adjustable wrench includes a handle with a fixed jaw extending from a head of the wrench and a groove is defined in an end of the head and communicates with a through hole defined transversely through the head. The through hole forms a circular hole in an outer surface of the head and located beside a root portion of the fixed jaw. A movable jaw has a cylindrical rack piece which is movably inserted in the groove and the through hole. A flange is connected between the movable jaw and the rack piece. A thumb screw is rotatably engaged with a hole defined through the head and engage with the rack piece.

Abstract: The wrench uses a spring driven locking mechanism to lock the movable lower jaw into position. A release bar enables the locking mechanism to be rotated, against the spring tension, to a position that releases the lower jaw for movement. Once released the spring tension returns the locking mechanism to a position that prevents movement of the lower jaw. A spring extending from the top of the stationary jaw into the lower jaw maintains the lower jaw adjacent to the upper jaw. By releasing the locking mechanism, repositioning the wrench without completed removal and then relocking the locking mechanism, the wrench can be used in a ratchet style. The locking mechanism is a multi-toothed semi circle that interacts with the teeth on the lower jaw shaft to engage and disengage the lower jaw.

Abstract: Utility is enhanced by an adjustable wrench including a fixed jaw fixedly formed at the body, an adjustable jaw adjustable relative to the fixed jaw, and a fastening unit disposed at one or each of the fixed jaw and the adjustable jaw, the fastening unit including a plurality of sprags such that one end of each of the sprags is linearly aligned facing the opposite jaw.

Abstract: An improved structure of a pair of pipe pliers with an auxiliary pressurizing mechanism, to drive both of a movable jaw at the inner side of a curved, movable block provided with a toothed section and a fixed jaw at the output of a handle to execute firmly holding a work object by pressurizing in opposite direction characterized by that the auxiliary pressurizing mechanism includes an additional auxiliary handle, or alternatively, a lateral adjusting screw structure to achieve the function by pressurizing to hold the work object.

Abstract: A hinge adjusting tool includes a rigid elongated member having a first end and a second end. A tubular member is attached to the first end of the elongated member. The tubular member is orientated substantially perpendicular to the elongated member. The tubular member has an upper end and a lower end. The tubular member has a slot extending therethrough. The slot extends between and through the upper and lower ends. A hinge may be selectively positioned in the tubular member such that the hinge may be repositioned.

Abstract: An adjustable wrench comprising a moveable jaw, a stationary jaw, and a worm gear driving the moveable jaw. The worm gear is, in turn, meshed with a rack of the moveable jaw and is driven by a reversible servomotor. Activation of the servomotor produces linear reciprocating motion of the moveable jaw. The adjustable wrench further includes a positioning device provided for limiting a travel of the moveable jaw in at least one direction away from or toward the stationary jaw. Preferably, the positioning device includes a first preset stop for limiting a travel of the moveable jaw in the direction toward the stationary jaw to define an inward limit of travel of the moveable jaw and a second preset stop for limiting a travel of the moveable jaw the directions away from the stationary jaw to define an outward limit of travel of the moveable jaw.

Abstract: A slide switch adjustable wrench uses a laminated steel construction method that includes a stepped surface to form a guide for the worm gear driven moving jaw. A molded or similarly formed body is sandwiched between the steel housing sides to form a sturdy structure. The body provides cavities, bearings and other features to support and guide moving parts within. A rack and pinion drive system uses simple molded gears to amplify about 2 inches of switch travel into about 6 turns of the worm gear. An overmolded rubber edge grip bonds to the body to create a recess in the body; this recess seamlessly fits the steel sides to form a smooth continuously contoured grip surface.

Abstract: A reversible adjustable wrench comprises a handle, which has a fixed jaw and a guiding groove at an end thereof. The fixed jaw has a gap and two cover pieces secured at lateral sides of the fixed jaw to form a chamber having an opening. The chamber has a guiding face therein, which has a stop portion at an end thereof closing to the tip end of the fixed jaw. A movable jaw has an end thereof slidable received in the guiding groove of the handle. An adjusting worm is pivoted at the handle for driving the movable jaw moving toward and away from the fixed jaw.

Abstract: A ratcheting adjustable wrench is disclosed. The wrench has a main body defining a wrench head, handle and fixed jaw. The main body is fabricated of hardened sheet metal formed from laminations. The adjustable wrench has a pin/slot guide mechanism to retain and provide position adjustment for an adjustable jaw. A locking mechanism allows the adjustable jaw to ratchet over the corners of a fastener being tightened. In a locked position, the wrench operates like a standard adjustable wrench. Moving a trigger to an unlocked position allows the worm gear mechanism to shift axially for additional travel. The movable jaw engaged to the worm gear is thereby also allowed to shift position so that the adjustable jaw wrench can rotate over the points of the fastener being torqued.

Abstract: An adjustable, open end wrench is described having a wrench head for turning a variety of different size fasteners. The wrench head comprises two jaws each having an engaging surface for engaging with the fasteners. One jaw is generally fixed and connected to a gripping portion formed as a wrench lever and the other jaw is movable relative to the fixed jaw. The wrench head comprises an adjustable mechanism by which the jaws may be spaced apart including a defined maximum spacing dimension between the jaws. The wrench head further comprises an imaginary centerline intersecting both of the jaws through a midpoint of a length of the jaws substantially perpendicular to the engaging surfaces of the jaws as viewed from a side view thereof And further wherein, each jaw has a width dimension measured at the centerline, and the width dimension of both jaws combined is also defined.

Abstract: A ratcheting adjustable wrench, having a handle assembly and a head assembly. The handle assembly is pivotally attached to the head assembly. The head assembly includes a fixed jaw and a movable jaw which together may engage a nut. An opening, having an opening top and an opening bottom extends laterally through the fixed jaw. A shaft spans the opening from the opening top to the opening bottom. A rack having teeth is rigidly attached to the movable jaw. A worm gear is slidably mounted on the shaft, which is attached to the fixed jaw and engages the rack. The handle has a contact point which selectively urges the worm gear against the opening top of the fixed jaw to maintain the position of the fixed jaw with respect to the movable jaw to torque the nut.

Abstract: A wrench structure with a multiple-thread worm includes a main body having a handle extending from the main body. A fixed jaw projects from one end of the main body opposite to the handle. The main body is formed with a slide channel and a movable is partially received in the channel and moved corresponding to the fixed jaw. The movable jaw has a rack extending therefrom and slidably received in the channel. A receiving hole is defined in the main body and communicating with the channel. The multiple-thread worm is rotatably received in the receiving hole and engaged to the rack of the movable jaw. The multiple-thread worm has multiple parallel spirals spaces from each other.

Abstract: An adjustable wrench including a main body, a slide block, a movable jaw and a handle. The main body is formed with a hollow section in which the slide block is transversely slidably disposed. An adjustment bolt is pivotally disposed on the slide block and engaged with the movable jaw. One side of the slide block adjacent to the handle is formed with a dented section. The handle has at least one stop member corresponding to the dented section for abutting against the slide block. When the handle is wrenched, the stop member abuts against and locate the slide block so as to fix the movable jaw. At this time, the fixed jaw and movable jaw can clamp and wrench a work piece. When the handle is wrenched in reverse direction, the stop member is disengage from the slide block, whereby the slide block and the movable jaw are pushed open by the work piece and idle. Accordingly, the adjustable wrench can one-way wrench the work piece.

Abstract: An adjustable wrench has a ratcheting feature by which its movable jaw retracts away from its fixed jaw when the handle is pulled in one direction, enabling the wrench to slip over the facets of a polygon-shaped nut, but which locks the jaws in position when the wrench handle is turned in the opposite direction. A jaw adjustment screw is positioned for rotation in the wrench head and is axially movable with the lower jaw, but only when a support wedge is slidingly retracted out from its normal position supporting the bottom end of the adjustment screw. The tool can have a ruled edge adjacent to the jaw for indicating jaw opening size. Another feature is a slidable fence device on the fixed jaw, to be moved slidably over a face of the nut when the wrench is in place, providing a stop against sliding of the wrench off the nut.

Abstract: A wrench structure including a main body having a handle extending therefrom. A fixed jaw projects from one end of the main body opposite to the handle. A movable jaw is disposed at the end of the main body and slidable relative to the fixed jaw. The main body is formed with a receiving hole. A worm is disposed in the receiving hole and engaged with a rack of the movable jaw. The worm is a multiple-thread worm having multiple parallel spirals spaced from each other. The multiple-thread worm has an elongated pitch, whereby when turning the worm, the movable jaw can be quickly moved to adjust the position thereof.

Abstract: An adjustable, open end wrench is described which has a wrench head for turning a variety of different size fasteners. The wrench head comprises two jaws each having an engaging surface for engaging with the fasteners. One jaw is generally fixed and connected to a gripping portion formed as a wrench lever and the other jaw is movable relative to the fixed jaw. The wrench head comprises an adjustable mechanism by which the jaws may be spaced apart including a maximum spacing dimension between the jaws. The wrench head further comprises an imaginary centerline intersecting both of the jaws substantially perpendicular to the engaging surfaces of the jaws as viewed from a side view thereof. And further wherein, each jaw has a width dimension measured at the centerline, and the width dimension of both jaws combined is relative to the maximum spacing dimension between the jaws.

Abstract: An adjustable crowfoot device removably attachable to an extension device, for gripping and either loosening or tightening an object in response to a turning motion of the extension device, and having a fixed claw member with a pinion receiving hole, an adjustable claw member, rack and pinion for slidably connecting the adjustable claw member to the fixed claw member where the pinion is rotatably connected within the pinion receiving hole and where the adjustable claw member has a rack having teeth connected to the pinion such that the teeth extend away from the flat surface between the two flat surfaces of the claw so as to provide a continuity of mating area.

Abstract: An adjustable jaw end power wrench, in which the adjustable jaw is operated by a worm gear, the worm gear is meshed with the rack of the movable jaw and the worm gear is driven by a reversible electric servomotor. Activation of the servomotor produces linear reciprocating motion of the adjustable jaw. Batteries in a wrench handle provide the power for the electric movement and a control switch controls the function of the wrench. The powered adjustable jaw wrench includes an anti-jamming coupling device provided for un-jamming the wrench when “binding” occurs between the adjustable jaw gear rack and the worm gear.

Abstract: An adjustable wrench comprises a frame having a handle, a fixed jaw and a guiding slot. An adjusting jaw has a neck at bottom side thereof. The neck receiving in the guiding slot of said frame whereby the adjusting jaw could slide along said guiding slot. An adjusting worm mounts at the frame for driving the adjusting jaw sliding, and a substantially U-shaped elastic piece mounting at one lateral end of the neck of the adjusting jaw. The U-shaped elastic piece has two suspended against portions respectively locating at two sides of the neck of the adjusting jaw whereby the against portions of the U-shaped elastic piece being against on the sidewalls of the guiding slot respectively.

Abstract: A ratcheting adjustable wrench is disclosed. The wrench has a main body defining a wrench head, handle and fixed jaw. The main body is fabricated of hardened sheet metal formed from laminations. The adjustable wrench has a pin/slot guide mechanism to retain and provide position adjustment for an adjustable jaw. A locking mechanism allows the adjustable jaw to ratchet over the corners of a fastener being tightened. In a locked position, the wrench operates like a standard adjustable wrench. Moving a trigger to an unlocked position allows the worm gear mechanism to shift axially for additional travel. The movable jaw engaged to the worm gear is thereby also allowed to shift position so that the adjustable jaw wrench can rotate over the points of the fastener being torqued.

Abstract: A slide switch adjustable wrench uses a laminated steel construction method that includes a stepped surface to form a guide for the worm gear driven moving jaw. A molded or similarly formed body is sandwiched between the steel housing sides to form a sturdy structure. The body provides cavities, bearings and other features to support and guide moving parts within. A rack and pinion drive system uses simple molded gears to amplify about 2 inches of switch travel into about 6 turns of the worm gear. An overmolded rubber edge grip bonds to the body to create a recess in the body; this recess seamlessly fits the steel sides to form a smooth continuously contoured grip surface.

Abstract: A wrench includes a handle, a first jaw block pivotally connected a head of the handle, a second jaw block movably connected to the first jaw block to define a variable clamp space between them, and a rotating unit mounted on the first jaw block for adjusting an openness of the clamp space. When using the wrench to tighten or loosen a hex bolt to a certain degree, a user needs only to pull the handle in a direction opposite to that in which a force is applied on the handle to tighten or loosen the hex bolt, so that the clamp space on the first jaw block is caused to instantaneously slip and turn relative to the clamped hex bolt, allowing the user to apply a force on the handle again without the need of repeatedly removing and replacing the wrench from and onto the hex bolt.

Abstract: An adjustable wrench includes a frame, having a handle, a fixed jaw and a track at one end of the handle. An adjusting worm pivoted to the frame for free rotation. An adjustable jaw, having one end received in the track and meshed with the adjusting worm for moving relative to the fixed jaw upon rotating the adjusting worm. Two spaces defined at the two sides of the adjustable jaw within the track. At least one packing device provided in each of the two spaces, having one end fastened to the adjustable jaw and the other end being against the frame.

Abstract: An adjustable wrench including a main body, a slide block, a movable jaw and a handle. The main body is formed with a hollow section in which the slide block is transversely slidably disposed. An adjustment bolt is pivotally disposed on the slide block and engaged with the movable jaw. One side of the slide block adjacent to the handle is formed with a dented section. The handle has at least one stop member corresponding to the dented section for abutting against the slide block. When the handle is wrenched, the stop member abuts against and locate the slide block so as to fix the movable jaw. At this time, the fixed jaw and movable jaw can clamp and wrench a work piece. When the handle is wrenched in reverse direction, the stop member is disengage from the slide block, whereby the slide block and the movable jaw are pushed open by the work piece and idle. Accordingly, the adjustable wrench can one-way wrench the work piece.

Abstract: A reversible adjustable wrench having a main body on which a slidable first jaw and a pivotally rotatable second jaw are disposed. In normal state, a leaning section of the second jaw is leant against a stop block to prevent the second jaw from being pivotally rotated. By means of rotating a spiral rod, the gap between the first and second jaws can be adjusted to snugly clamp different sizes of nuts or bolts. After moving the stop block, the second jaw has a space for pivotal rotation, permitting the wrench to be reversely wrenched.