Abstract: A tool drive includes upper and lower coaxial manually rotatable drive members and a driven tool member at the bottom of the lower drive member. A reversible unidirectional transmissions rotatably couple both the upper and lower drive members to the driven member. The transmission coupling the lower drive member includes a peripheral ratchet formed in the lower inside face of the lower drive member. A double ended pawl rockably carried by the upper drive member with its opposite ends alternatively drive engaging the ratchet so as to provide a ratchet coupling driving in alternative opposite directions. A follower carried by the driven member engages a cam on the pawl to transfer the pawl between opposite drive positions in accordance with the angular directional relationship between the upper drive and driven members.

Abstract: A reversible ratchet wrench wherein the usual pawl member associated with the usual ratchet wheel located in the head end of an elongate, ratchet wrench body is rotated either clockwise or counterclockwise from one end position to an opposite end position for reverse wrench operation by an elongate, change-over finger that extends longitudinally of the wrench body to the handle end thereof and is pivotally mounted as a lever relative to the wrench body. The work arm end of the lever preferably freely engages a recess or notch in the pawl, while the power arm end of the lever preferably engages a resiliently urged ball detent for snap action in moving from one end position to the opposite end position, alternately, under the control of preferably opposite push button ends of a slide actuator located near the handle end of the wrench body for pressing by a finger of the one hand of a user holding the wrench by such handle end.

Abstract: A pin assembly for securing a tool socket in place and for effecting quick release of the tool socket from a socket engagement tang or boss of a ratchet drive wrench. The mechanical structure is specially adapted for use in a ratchet drive wrench of the type in which the drive direction is conveniently changed by simply applying digital pressure to a pivotally-supported toggle element projecting upwardly of the head of the wrench. A wrench of the type referred to is described in K. K. Chow, U.S. Pat. No. 4,280,379.

Abstract: A reversible ratchet wrench employing spaced plates which hold the sockets and ratchet mechanism in assembly has an offset handle to provide clearance for the hand of the user. The pawl of the ratchet mechanism is in the head portion of the wrench adjacent the socket and the spring-loaded plunger is supported in the handle portion. The pawl and plunger engage at an oblique angle at a juncture zone between the handle portion and the socket head portion, which juncture zone affords clearance for operative movement of the ratchet and plunger during use.

Abstract: The vehicle-carrying purpose wrench mainly comprises a housing assembly and a tool assembly wherein the housing assembly further includes a motor casing, a tool casing, a cover and a handle. The tool assembly disposed in the tool casing cooperates with a reversible motor received in the motor casing. By controlling the trigger assembly mounted in the handle, the rotation force can be transmitted to the tool assembly and hence to achieve the purpose of tightening or loosening the screws used for fixing a tire to a vehicle.

Abstract: A reversible ratchet wrench comprising an elongated housing whose head portion encloses a ratchet wheel and a pawl. The orientation of the pawl determines one of two driving directions of the ratchet wheel, to which is connected a square driving member. An elongated groove containing a control device and an arcuate spring strip is provided on the upper surface of the housing. The front end of the arcuate spring strip contacts with one lateral side of the pawl, and the rear end of the spring strip is retained by the control device. The control device comprises a control switch which is controlled by the thumb or other fingers of the hand grasping the wrench, with a fixing spring assembly enabling the control switch to be fixed in place. An upper cover plate and a lower cover plate enclose the elongated housing of the ratchet wrench.

Abstract: A power driven wrench includes a rotatable drive rotor journalled between fixed arms of a yoke affixed to one end of a wrench handle containing a motor. Disposed between the yoke arms is a ratchet head which is driven in reciprocal angular motion by the motor. The ratchet head is engaged with the drive rotor by means of a pawl in the ratchet head and a ratchet gear on the drive rotor. A direction switching lever within the ratchet head permits the direction of rotation of the drive rotor to be manually selected. The switching lever extends from the sides of the ratchet head, such that the direction of rotation of the wrench can be easily changed even if the wrench is inadvertently backed up against an immovable object while removing a nut or bolt. The location of the switching lever enables it be actuated with the same hand holding the wrench, and also results in the wrench having a thin profile which is useful in confined spaces.

Abstract: A handle member having at least one circular opening proximate an end, and having a ratchet pawl engageable proximate the opening, and having a spring biased link engageable into and out of the opening, and also engageable against the ratchet pawl for disengaging the ratchet pawl when the link is disengaged from the opening, and including a plurality of tools having a generally cylindrical construction for insertion into the opening, each tool having a surface thereabout for engagement of the link against the tool surface wherein the link holds the tool in the handle and permits ratcheting wrench action, and disengagement of the link also disengages the ratchet pawl and permits the tool to be released from the handle opening.

Abstract: A spinner ratchet wrench (10) having a normal ratcheting capability and a free-spinning mode used to easily and quickly pre-tighten a nut or bolt (device) prior to final tightening or to remove a device after it is initially loosened. This feature does not require the handle (18) to be oscillated and is particularly useful when devices are located in areas where finger manipulation is difficult or impossible. Free-spinning is achieved by a combination of a three-position pawl (22a) that includes a neutral position as well as the two standard ratchet positions, and a spinner drive shaft (18a) having at opposite ends a primary bevel gear (18b) and a spin knob (18p). When the pawl (22a) is placed in neutral it is disengaged from the ratchet gear (16f) allowing the shaft (18a) to be directly rotated by the knob (18p). As the shaft turns the primary bevel gear (18b) turns a secondary bevel gear (16d) connected to the socket shank (16k).

Abstract: A reversible ratchet wrench (10) includes a wrench body (11) having a unitary head (12) including an opening (20) with circular driver and pawl portions (22,24). A driver (26) has a ratchet portion (28) received within the driver portion (22) of the opening and includes ratchet teeth (30) that extend between oppositely facing surfaces (16,18) of the wrench head (12). A pawl (38) is received within the pawl portion (24) of the opening (20) and includes teeth (40a, 40b) that extend between the wrench head surfaces (16,18) and provide continuous engagement therebetween for selective locking of the driver in one direction and ratcheting in the other direction. Driver and pawl portions (22, 24) of the wrench head opening (20) have cylindrical shapes which facilitate manufacturing and the support of both the driver and the pawl upon assembling. A ball (34) of a releasable detent mechanism (35) is provided to secure a socket to a driving lug (32) of the driver (26).

Abstract: A handle member having at least one circular opening proximate an end, and having a ratchet pawl engageable proximate the opening, and having a spring biased finger engageable into and out of the opening, with mechanical linkage for disengaging the ratchet pawl when the finger is disengaged from the opening, and including a plurality of tools having a generally cylindrical construction for insertion into the opening, each tool having a circumferential stop thereabout for engagement by the finger, and having circumferential ratchet teeth engageable by the ratchet pawl, whereby engagement of the finger against the circumferential stop holds the tool in the handle and permits ratcheting wrench action, and disengagement of the finger from the stop also disengages the ratchet pawl and permits the tool to be released from the handle opening.

Abstract: A ratchet wrench usable in areas of limited access normally requiring an open-end wrench, but possessing the high torque characteristics of a closed-end socket wrench is disclosed. A handle member terminates in an expandable yoke containing a fixed upper half and an expandable lower half for movement from an expanded open position for receiving a socket to a closed position in driving engagement with the socket. A curved rib is formed transversely on the inner surface of each yoke half. A split ring-like nut driving socket contains exterior ratchet teeth and a circular bore formed transversely through the socket with a recessed counter bore forming a circular guide channel in the socket concentric with the transverse bore. The socket guide channel is received in rotational engagement with the curved ribs of the yoke halves. The socket contains a curved head having lands which in combination define a polygonal wrench opening.

Abstract: A torque-multiplying hand wrench incorporating the features of a standard ratchet wrench along with a lever action torque multiplying feature. A torque multiplying lever arm is attached to a cam element, the eccentric of which acts upon yoke-shaped actuator when the lever arm is rotated. The actuator interacts with a standard ratchet device to apply torque to a threaded fastener. The handle of the wrench acts either as a standard ratchet wrench handle or as a reaction arm in conjunction with use of the torque multiplying lever arm.

Abstract: Ratchet wrench apparatus includes a beveled gear arrangement for allowing the ratchet apparatus to operate through rotary movement of a portion of the handle as well as by a standard oscillating handle motion. Included is a neutral position for disengaging the beveled gearing to allow oscillation of the handle without feedback rotation.

Abstract: A dual-mode ratchet wrench usable in either a reciprocating or a nonreciprocating mode is disclosed. The ratchet wrench includes a wrench body having a head portion and a handle portion, a rotatable drive unit, a ratchet mechanism, and a sleeve assembly that is axially translatable along the handle portion. In the reicprocating mode, the sleeve assembly is moved to a disengaged position wherein the wrench is operated by swinging the handle back and forth through an arcuate path. Due to the action of the ratchet mechanism, the drive unit is forced to rotate when the handle portion is swung in one direction, but not the other. In the nonreciprocating mode, the sleeve assembly is moved to an engaged position, wherein the inner end of the sleeve assembly engages the drive unit through a bevel gear system. The wrench is operated by rotating the sleeve assembly about an axial centerline through the handle of the wrench.

Abstract: This invention relates a twist set ratchet handle characterized by manipulating two controlled bevel wheel assemblies which mesh with each other and run clockwise and counter clockwise so that the ratchet head can be operated by turning the handle only or by turning the handle and the ratchet holder together. So it is a new, exquisite, convenient, multi-purpose ratchet handle.

Abstract: Ratchet wrenches of the socket drive type with socket ejector incorporate improved structure and arrangement involving the control knob stub shaft portion, the ejector pin retainer plate, and assembly technique.

Abstract: Ratchet wrenches of the socket drive type with socket ejector incorporate improved structure and arrangement involving the control knob return means, socket ejector pins and ratchet pawl pivot pin, and assembly technique.

Abstract: In a ratchet wrench of the type having a head which is manually rotatably shiftable for reversing the driving direction or torque-transmitting mode of a socket carried by the wrench and in which the head is also manually depressible to effect release of a socket carried by a drive stud of the wrench, an improved control bar or lever for rotating the head of the wrench to effect socket drive reversal. The control bar surmounts and is attached to the head for pivotal manipulation thereof. An integral end portion of the control bar extends radially beyond a bounding periphery of the head to provide increased torque forces and enhanced ease of manual annular shifting of the head and of the socket drive direction control components coupled thereof. A free end of the control bar is spaced from the wrench to permit depressing the head manually to effect the release of a wrench-carried drive socket.

Abstract: A reversible ratchet wrench (10) includes a wrench body (11) having a unitary head (12) including an opening (20) with circular driver and pawl portions (22,24). A driver (26) has a ratchet portion (28) received within the driver portion (22) of the opening and includes ratchet teeth (30) that extend between oppositely facing planar surfaces (16,18) of the wrench head (12). A pawl (38) is received within the pawl portion (24) of the opening (20) and includes teeth (40a,40b) that extend between the planar wrench head surfaces (16,18) and provide continuous uninterrupted engagement therebetween for selective locking of the driver in one direction and ratcheting in the other direction. Driver and pawl portions (22, 24) of the wrench head opening (20) have cylindrical shapes which facilitate manufacturing and the support of both the driver and the pawl upon assembling.

Abstract: A ratchet wrench apparatus includes a housing body having a lever portion extending outwardly from one side thereof to apply a torque force. A gear assembly received in the housing consists of a universal gear, planetary gears and a sun gear which are rotatably driven in unison in response to a torque force exerted through a ratchet gear adjustably disposed in the handle and housing. An output torque force is transmitted from the gear assembly through a rotor body which is normally held in interlocking relationship with the sun gear in the gear assembly. The apparatus further includes a separate selector bar element which may be manually inserted in the gear assembly to enable the rotor body to rotate independently of the sun gear when a torque force is being exerted through the lever and remaining gears.

Abstract: A socket wrench tool set. A hollow drive ring is retained in an annular head of a socket wrench and is rotatable therein in both directions. The wheel has a ratcheted outer peripheral portion and an interior female drive ring portion with a prismatic driving inner periphery at one end and a circular cylindrical inner periphery at the other end joined by a flat shelf. The cylindrical inner periphery has a diameter greater than that of the largest bolt with which the wrench is to be used. A ratchet pawl is mounted on the handle for engagement with the ratcheted outer peripheral portion. A series of removable sockets is provided; each has at one end a prismatic outer periphery sized for fitting in the drive ring; an inner prismatic periphery at the other end drives a nut or bolt head, and a large circular cylindrical opening, nearly as large as the distance between the opposing walls of that inner prism, extends therethrough to enable passage of a bolt all the way therethrough.

Abstract: A reversing ratchet wrench employing spring biased linkage connecting a pivotally mounted pawl to a finger operated reciprocally worked finger piece mounted in the end of the wrench body opposite the ratcheting mechanism wherein the change of direction of the wrench action is accomplished by depressing a finger piece or by releasing the finger piece.

Abstract: A ratchet wrench of the socket drive type with a socket ejector has a control knob recessed within and reciprocable within a ratchet plug body for independently actuating both the ratchet reversing device and socket ejector.

Abstract: A ratchet wrench for supporting removable wrench sockets of simplified construction employing a two-chambered pear shaped housing journaling a ratchet gear and a one-piece combined pawl and pawl reversal lever which are supported on parallel axes for limited rotational movement in mutual bearing engagement; such ratchet gear and pawl receiving additional bearing support from the walls of their respective chambers and being maintained in their rotational operating positions by a single retaining ring.

Abstract: A reversible ratchet handle having a head portion and lever arm portion integrally formed. The head portion receives a rotatable tool driven in its upper section, the tool driven having a ratchet wheel with a toothed edge, and a pivotable circular switching member in its lower section. The switching member is provided with a pair of oppositely disposed toothed portions for selectively engaging the toothed edge of the ratchet wheel. In addition, the switching member is provided with a slot at its lower section, which slot defines a cam surface at the mid section of the switching member.The lever arm portion consists of an elongated tube and a rod telescopically and longitudinally disposed in the tube. The inner end of the rod extends into the slot of the switching member and is adapted to engage the cam surface thereof. A plunger-type push button is disposed at the outer end of the tube and is connected to the outer end of the rod.

Abstract: A torque wrench having an elongated hinge terminating in a ratchet ring with interiorally directed teeth has a work head for turning a workpiece and a pawl for selectively rotating the workpiece with rotational movement of the hinge. The pawl is provided with a lip directed radially outward from the axis of rotation of the work head. A corresponding annular groove is defined in the interior wall of the ratchet ring to receive the lip. Tilting or misalignment of the pawl within the cavity defined within the ratchet ring is thereby prevented. In its preferred embodiment, the pawl is equipped with a plurality of ratchet teeth with the lip extending outwardly from the generally convex surface into which the teeth are formed midway between the longitudinal extremities of the pawl perpendicular to the plane of the ratchet ring. The corresponding annular groove in the ratchet ring likewise divides the ratchet teeth into separate portions on either side of the pawl lip.

Abstract: A reversible ratchet wrench having a pivotable pawl element including a pair of pawls and a cam surface corresponding to each pawl. A resilient pusher member is eccentrically carried by a control rod and acts against the cam surfaces to pivot the pawl member when the rod is rotated. The rod is rotatably secured to a barrel located about and rotatably fixed to the body of the wrench in one axial position. The barrel has a detent positioned in one of two circumferentially spaced slots in the body in the first position, and in a circumferential notch in a second position. The slots open into the notch to allow axial movement and a spring urges the barrel toward the first position but is manually overcome to move the barrel to the second position for reversing.

Abstract: A remote socket release apparatus for wrenches wherein the release actuation operator is located on the outer end of the wrench handle.

Abstract: A ratchet wrench reversing mechanism which utilizes a finger spring to contact the reversing pawl. The finger spring is attached to or constrained by the reversing knob and is in concentric relationship with a central stem which effects socket release.

Abstract: An improvement in a ratcheting socket wrench wherein an elongated shaft is journalled in the handle and is provided with a knob at the outer end of the handle. The shaft is also reciprocally disposed in the handle where in one position it can be rotated thereby rotating the drive stud for starting or removing loose bolts and the like and in a second position it may be rotated to engage the ratcheting device for drive in either direction.

Abstract: There is disclosed an adjustable ratchet wrench including a disk member with ratchet teeth on its periphery and hub portions of reduced diameter on each side. A centrally disposed rectangular opening is provided in which a double acting lead screw is mounted. A pair of jaws are threadedly mounted on the lead screw for movement toward or away from each other dependent upon the direction of rotation of the lead screw. A two piece body is provided which defines an elongated handle and two parallel, spaced apart members which terminate in a generally circular, enlarged ratchet holding head having circular openings in which the hub portions of the ratchet disk are received. A pawl is provided for controlling the direction of ratchet movement.

Abstract: Ratchet wrench having a main body consisting of two body elements formed of stamped metal plate having handle portions that are riveted together and having head portions which are offset from the handle portion so as to lie in spaced, parallel relationship, the head portions supporting a ratchet and a pawl between them.

Abstract: A ratchet is provided in which a friction brake ring is employed to engage a pawl with the ratchet teeth in an annular ring or hinge extending from a ratchet tool handle. The friction brake ring carries the pawl into engagement when the tool handle is rotated in the direction in which it is desired to turn a workpiece. A spring within the ratchet returns the pawl to a position in which it is disengaged entirely when pressure on the tool handle in the rotational direction of engagement is released. Thus, the return of the tool handle before a subsequent engaging stroke is accomplished silently and without the characteristic clicking of the ratchet teeth of the hinge passing over the pawl.

Abstract: A ratchet is provided in which directional indexing is achieved by rotation of an indexing member in the rotational direction in which it is desired to rotate a workpiece. Locking in an indexing position is achieved by means of detent mechanisms situated in a channel extending through a guide element and biased radially outward therefrom to interact with said indexing member. A pawl is provided within a cavity defined between a guide element extending from a torque transmitting member and an encircling annular ring at the end of the work handle. One surface of the pawl is of arcuate configuration equipped with ratchet teeth engageable with corresponding ratchet teeth on the interior surface of the annular ring of the work handle. An opposing surface of the pawl is of overall convex configuration so that the pawl may be rolled across a planar bearing surface of the guide element under the influence of the directional indexing member.

Abstract: There is disclosed as the preferred embodiment of the invention an adjustable ratchet wrench including a disk member with ratchet teeth on its periphery and hub portions on each side of reduced diameter. A centrally disposed rectangular opening is provided in which a double acting lead screw is mounted. A pair of jaws are threadedly mounted on the lead screw of movement toward or away from each other dependent upon direction of rotation of the lead screw. A two piece body is provided which defines an elongated handle and two parallel, spaced apart members which terminate in a generally circular, enlarged ratchet holding head having circular openings in which the hub portions of the ratchet disk are received. A pall is provided for controlling the direction of ratchet movement.

Abstract: There is disclosed a ratchet wrench which can accommodate bolts having threaded portions which extend well beyond a nut and which are located in difficult to reach positions within mechanical equipment. The wrench has a long socket adapter for reaching such bolts. Adapter passageways extending through the socket, socket adapter and wrench handle provide a clearance opening to allow the wrench to accept bolts having threaded portions which extend well beyond a nut.

Abstract: An improved double acting ratchet wrench employing a cam actuated positive drive oscillatory pawl which is engageable by a slight movement of the wrench handle and held tightly engaged by hand pressure on the handle.