Abstract: A hand tool with vibration-damping sleeve is provided. The vibration-damping sleeve is set between a hammering body and a handle of the tool to buffer the hand tool from vibrating. The vibration-damping sleeve is wrapped around and joined with the handle of the hand tool by injection molding and is set in the through hole of the hammering body. Thus, the vibration-damping sleeve is tightly connected to the hammering body, thereby blocking the vibration transmission at hammering. The sleeve is made of a hard PP plastic slightly in the form of an awl, one end of which is sealed and the other end is open; the front exterior wall is divided into upper and lower caves and two convex sides.

Abstract: A hammer includes a handle including a shaft section, a pivoting device connected to an end of the shaft section to allow the hammer to the pivoted and a head and claw member including a sleeve section adapted to be movable along the shaft section of the handle. The head and claw member includes a body, an impact plate and a hammerhead. The sleeve section includes a elongate shaft passage to cooperate with the shaft, and the shaft section includes an outward projecting member to cooperate with the sleeve section and an aperture to cooperate with the outward projecting member. The pivot member includes a surface coated with a flexible material.

Abstract: A manually operable impact tool is provided that includes an elongated rigid handle and an impact head disposed at one longitudinal end portion of the handle structure. A cushioning grip is disposed over a second longitudinal end portion of the handle structure. The cushioning grip includes an inner layer of thermoplastic rubber having a Shore A durometer in the range of about 10 to about 40, and an outer layer of thermoplastic rubber disposed over the inner layer having a Shore A durometer in the range of about 55 to about 90.

Abstract: Shock dampener incorporated into a hammer handle. Using a counter weight attached with a hinge pin to provide extreme shock dampening when striking solid objects with a hammer tool. Shock travels in waves known as vibration. When striking an object with the hammer's head, a shock wave is created and travels down the handle. The shock wave travels through the whole hammer handle at one time in an instant. This allows for energy of the shock to transfer into the counterbalance dampener hinge pin and vibrate the dampening member that is buffered with a form of rubber diffusing 95% of the shock energy with the dampening member.

Abstract: A striking implement, such as a maul, to reduce the impact force on the handle used with the member. The device is fabricated of metal and has two elongated parallel supports, a base, and a two angled end portions joining together one end of each parallel support, the interior of the device being hollow. Preferably, the device is formed integral with the head of the member, the handle extending through the device and being secured to the head member.

Abstract: An impact instrument for delivering an impulse to an object. The impact instrument may include an impact surface for contacting the object and an elongated member extending from the impact surface that terminates in an end. The elongated member may include a grasping region in the vicinity of the end. When the instrument is grasped within the grasping region, the center of percussion of the instrument preferably coincides with the impact surface. The instrument may also contain pivoting grasping member disposed on the elongated member. A cavity is preferably formed between the grasping member and the elongated member and may contain compressible material. The grasping member may rigidly contact the elongated member at an ideal pivot point. The grasping member is preferably adapted to pivot with respect to the elongated member at the ideal pivot point.

Abstract: A composite hammer comprising a head having a periphery and a longitudinal axis, a collar disposed substantially about the periphery and having an inner surface and a neck tube projecting radially outwardly therefrom, the neck tube being inclined relative to the longitudinal axis, and a handle having a proximal working end received in the neck tube and a distal end.

Abstract: A striking and pulling tool, such as a hammer, having separate head elements secured to opposing sides of a handle. The tool may be part of a system with interchangeable components.

Abstract: Deadblow hammers capable of minimizing or eliminating recoils when the hammers impact their targets are discussed which have easy access anti-recoil chambers and which have open sockets for receiving handles that extend the length of the hammerhead body. These hammers incorporate filler materials, which function to negate the effects of the hammer recoils, with improved filling port(s) for filling the filler materials. Golf clubs with anti-recoil chamber and insert elements are also discussed.

Abstract: An ergonomic handle for a hand tool includes a main portion extending in a longitudinal direction between a gripping portion and a tool head supporting portion opposite the gripping portion. Both the gripping portion and the tool head supporting portion are offset at an inclination in relation to the longitudinal direction of the main portion at a compound angle including a lateral angle and a vertical angle to ensure proper alignment while improving the line of sight to the tool head. The handle is suited for a hammer system in which removable fastening means secure the tool head to the handle to permit various adjustments to be made to the tool head. A tension member is also received through the handle under tension so that the handle is pre-stressed under compression for added strength.

Abstract: A hammer includes a handle, a hammer body mounted on an end of the handle and having a side formed with a combination bar inserted into the handle, and a protective jacket integrally formed on the handle to encompass a periphery of the combination bar and a mediate portion of the hammer body entirely. Thus, the protective jacket of the handle encompasses the periphery of the combination bar and the mediate portion of the hammer body entirely, so that the handle and the hammer body are combined with each other rigidly and stably, thereby enhancing the combination strength of the hammer.

Abstract: An impact device has a handle attached to an impact head. A weight is reciprocatably mounted on a guideway on the impact head. The weight can move along the guideway between a first position and a second position in response to motion of the head. A yielding member such as a spring or elastomeric element can be mounted at the impact head. The weight can recoil against the yielding member in response to motion of the head. The impact head can hit an object in such a manner as to move the weight in a straight line from the first position to the second position.

Abstract: A striking device including a head having a striking surface and a base mounted on an end of a handle for reciprocation in a linear motion. A rail structure is carried by the end of the handle. A rail receiving structure is carried by the base and receives the rail structure for reciprocating linear motion of the head between a forward position and a rearward position. A biasing structure biases the head into the forward position.

Abstract: Deadblow hammers capable of minimizing or eliminating recoils when the hammers impact their targets are discussed which have easy access anti-recoil chambers and which have open sockets for receiving handles that extend the length of the hammerhead body. These hammers incorporate filler materials, which function to negate the effects of the hammer recoils, with improved filling port(s) for filling the filler materials. Golf clubs with anti-recoil chamber and insert elements are also discussed.

Abstract: A hammer useful for working rock, stone, and other hardened substrates is provided. The hammer head defines an acoustic chamber which resonates tones when the hammer is used to strike an object. Variations in the tones alert the user to changes in the rock substrate. Optionally, a pin extends from a striking surface of the hammer and extends part way into the acoustic chamber.

Abstract: Vibrations in the tubular handle of an object striking implement such as a hand tool or ball bat are damped by a vibration damper having a support portion positioned in and engaged with the handle. The vibration damper also has a resilient second portion which cushions contact of the damper with the handle wall and which moves inwardly of the handle in a direction generally transverse to a longitudinal axis of the handle.

Abstract: An impact instrument for delivering an impulse to an object. The impact instrument may include an impact surface for contacting the object and an elongated member extending from the impact surface that terminates in an end. The elongated member may include a grasping region in the vicinity of the end. When the instrument is grasped within the grasping region, the center of percussion of the instrument preferably coincides with the impact surface. The instrument may also contain a pivoting grasping member disposed on the elongated member. A cavity is preferably formed between the grasping member and the elongated member and may contain compressible material. The grasping member may rigidly contact the elongated member at an ideal pivot point. The grasping member is preferably adapted to pivot with respect to the elongated member at the ideal pivot point.

Abstract: A hammer adapted to its head and handle at least with a resilient swivel pivoted joint so to swing with the swivel point as the pivot in the same direction as that of the striking to release the counter force instantaneously generated as the hammer strikes a work piece, so to avoid hurting the user's fingers and limbs.

Abstract: Deadblow hammers capable of minimizing or eliminating recoils when the hammers impact their targets are discussed which have easy access anti-recoil chambers and which have open sockets for receiving handles that extend the length of the hammerhead body. These hammers incorporate filler materials, which function to negate the effects of the hammer recoils, with improved filling port(s) for filling the filler materials. Golf clubs with anti-recoil chamber and insert elements are also discussed.

Abstract: A hammer adapted to its head and handle at least with a resilient swivel pivoted joint so to swing with the swivel point as the pivot in the same direction as that of the striking to release the counter force instantaneously generated as the hammer strikes a work piece, so to avoid hurting the user's fingers and limbs.

Abstract: A hammer comprises a metal bar extended from a head, the bar including forward and rearward apertures; a soft sleeve including spaced lengthwise internal ribs, the ribs being fastened across the bar, forward and rearward staged holes disposed corresponding to the apertures respectively; two forward fastening elements each including a catch inserted into one aperture for preventing the bar from disengaging from the sleeve; a rearward fastening assembly including a left fastener including a bore in a shank and spaced recessed rings around the bore and a right fastener including spaced collars on a shank thereof, the collars being disposed matingly with respect to the recessed rings so that the bar and the sleeve are fastened together by snapping the collars into the rings through the rearward staged hole and the rearward aperture; and a hard handle formed on the sleeve. The ribs and the sleeve can absorb shock.

Abstract: A handle cover is made of soft material and includes a central longitudinal compartment for receiving a handle of a tool. A plurality of first holes and a plurality of second holes are defined in an upper portion of the handle cover. The first holes and the second holes are alternately disposed along a longitudinal direction of the handle cover with each first hole extending in a direction transverse to the longitudinal direction of the handle cover and having an opening in a left side of the upper portion of the handle cover and with each second hole extending in the direction transverse to the longitudinal direction of the handle cover and having an opening in a right side of the upper portion of the handle cover. The lower portion of the handle cover has an identical arrangement.

Abstract: A dead blow hammer has a skeleton including a cylindrical head tube and a cylindrical neck tube fixed to the head tube and projecting laterally therefrom and receiving therein a disk-like plastic spacer and the working end of an elongated plastic handle core, which is adhesively secured in the neck tube. The head tube contains shot and the ends thereof are closed by end caps having cylindrical, longitudinally-slotted flanges press-fitted in the ends of the head tube. The entire skeleton is encapsulated in an overmolded plastic sheath which includes an inner covering and a flexible and resilient grip further overmolded on the inner covering adjacent to the distal end of the handle member.

Abstract: A dead blow hammer has a skeleton including a cylindrical head tube and a cylindrical neck tube fixed to the head tube and projecting laterally therefrom and receiving therein a disk-like plastic spacer and the working end of an elongated plastic handle core, which is adhesively secured in the neck tube. The head tube contains shot and the ends thereof are closed by end caps having cylindrical, longitudinally-slotted flanges press-fitted in the ends of the head tube. The entire skeleton is encapsulated in an overmolded plastic sheath which includes an inner covering and a flexible and resilient grip further overmolded on the inner covering adjacent to the distal end of the handle member.

Abstract: A tool comprised of two or more components each composed of differing materials with one component being less dense and the other component having working surface characteristics. The first component may be made of a titanium alloy.

Abstract: A hammer has an impact head, a handle and an elastomeric grip cover. The free end of the grip cover includes a tuned vibration absorber. In one design, the tuned vibration absorber is integral with the grip cover and may or may not include a higher density mass portion. In other designs, a mass is located within a pocket formed in the grip cover. The pocket may be open or closed.

Abstract: An impact tool having a head structure including first head piece, a second head piece and an elongated handle structure. With a lengthwise section of the handle structure being arranged in operative association with and maintaining the first and second head piece of the head structure in operative combination relative to each other. A woven fiber material is arranged about and epoxied to the lengthwise section of the handle structure arranged in operative association with the first and second heads to enhance the interface therebetween.

Abstract: A hammer includes a composite material handle having a connecting portion formed on one end of the composite material handle. A head is encircled in the connecting portion of the handle and has a flat working face formed on one end. An annular groove is defined in a middle portion of the head to receive the connection portion of the handle. A through hole is transversely defined in the middle portion of the head and communicates with the annular groove. A cushion core is securely inserted in the through hole in the head to absorb the shock generated when the hammer is used.

Abstract: A hammer having a hammer head and a cap removably slidably fitted to the hammer head. A biasable pad for absorbing shock is positioned between the cap and the hammer head. A cross-pin connects the cap and hammer head while permitting slidable movement therebetween.

Abstract: The present invention provides a vibration reducing grip material that includes a closed-cell poly(vinyl chloride) foam material having a Shore durometer of about 50 to about 70. According to one embodiment of the present invention, there is provided a vibration reducing handle cover for an impact tool.

Abstract: A handle cover is made of soft material and includes a central longitudinal compartment for receiving a handle of a tool. A plurality of first holes and a plurality of second holes are defined in an upper portion of the handle cover. The first holes and the second holes are alternately disposed along a longitudinal direction of the handle cover with each first hole extending in a direction transverse to the longitudinal direction of the handle cover and having an opening in a left side of the upper portion of the handle cover and with each second hole extending in the direction transverse to the longitudinal direction of the handle cover and having an opening in a right side of the upper portion of the handle cover. The lower portion of the handle cover has an identical arrangement.

Abstract: Retaining means for holding a fastening cross-pin that holds a removable cap mounted to a pole of a hammer thus providing a selected type of cap impact face for the hammer head. The cap forms a chamber and the pole is removably slidably fitted into the pole chamber. The fastening cross-pin is removably positioned in cap pin holes in the cap cylindrical wall and to a pole pin hole so as to removably secure the cap to the pole and also so as to allow the pole to move relative to the cap in the longitudinal dimension between an impact mode position of the cap impact face against a workpiece and a static mode position of the cap impact face remote from the workpiece. A biasable pad for absorbing shock is positioned within the chamber formed in the cap between the cap impact face and the pole. The fastening cross-pin extends through the pole pin hole and is connected to the cap side walls.

Abstract: A hammer with shock-reduction structure includes an integrally formed hammer body and a handle cover. A rear section of the handle is formed with an H shaped rod for being engaged by the handle cover made of plastic or rubber. A plurality of front holes is installed on the lateral side of a front section of the H shaped rod and a plurality of rear holes is installed on the lateral side of a rear section of the H shaped rod. The number of the rear holes is larger than or equal to the number of front holes. A gap between the front holes and rear holes is larger than a gap between two adjacent holes. A tilt reduction portion is installed at the lower distal end of the H shaped rod. The H shaped rod at a rear section of the handle of the hammer is inserted into the handle cover which encloses the tilt reduction portion. A hollow space is formed between the opening and tilt reduction portion.

Abstract: A recoil reducing apparatus that is attachable to a striking tool includes a resilient strap having a first aperture which is configured to accept an extension of the striking tool, and a second aperture spaced from the first aperture along a major axis of the strap and configured to accept a striking portion of the striking tool. The strap also includes a flap which extends from the second aperture. The strap is generally planar and of a resilient elastomeric material, such as urethane rubber. When used with a hammer, an extension of the hammer, such as the claw, is inserted through the first aperture of the strap. The second aperture is pulled over the striking head of the hammer resulting in a tight fit with the hammer head.

Abstract: A manually operable impact tool that includes an elongated rigid interior handle structure extending longitudinally with respect to the tool, an impact head disposed at one longitudinal end portion of the handle structure and an exterior impact cushioning gripping structure affixed to a second longitudinal end portion of the elongated interior handle structure in surrounding relation thereto. The exterior impact cushioning gripping structure is formed of inner and outer layers of molded material. The inner layer is a foamed material that is selected from a group consisting of polyvinyl chloride, polypropylene, and thermoplastic elastomer and is molded in surrounding relation to the elongated interior handle structure. The outer layer is constructed of a solid nonfoamed material that is chemically compatible with the inner layer and is molded in surrounding abutting relation to the inner layer.

Abstract: A system for absorbing shock including a resilient member positioned between a portion of the head and a portion of the shaft of the tool. The resilient member dampens and absorbs vibration travelling from the head to the shaft and reverberations travelling through the tool. The system also includes a shock-absorbing member having an internal portion positioned within a cavity in the head of the tool and an external portion positioned on an upper surface of the head that dampens and absorbs vibration travelling within the head and reverberations travelling through the tool. The system further includes a bonding material filling spaces with the cavity and a channel within the head that further dampens and absorbs vibration travelling from the head to the shaft and reverberations travelling through the tool. The system includes a handle portion that has a soft elastomeric outer coating that provides a comfortable grip to the user and hinders vibration from travelling from the shaft to the hand of the user.

Abstract: A pounding tool comprises a pounding head and a handle fastened at one end thereof with the pounding head. The handle is provided in two opposite longitudinal sides thereof with a shock-absorbing block having a plurality of through holes for mitigating the shock wave that is transmitted to the handle from the pounding head at the time when the pounding head strikes an object.

Abstract: A pounding tool comprises a head, and a handle which is connected at one end thereof with the head and is provided with a protective jacket fitted thereover to facilitate the gripping of the handle with hand. The protective jacket is provided with a plurality of shock-absorbing through holes which are arranged in rows along the longitudinal direction of the protective jacket. The handle has a top side and a bottom side, and a direction formed from the top side to the bottom side. The head has a pounding direction which is the same as the direction which is formed from the top side to the bottom side of the handle. The through holes are located over the top side and under the bottom side of the handle.

Abstract: A hammer protective device, used in conjunction with a hammer having a handle portion and a head portion. The head portion has a shank portion for mounting the handle. The invention comprises a diametrically expandable rubber sheath having a generally cylindrical configuration. The rubber sheath has a relaxed diameter which is slightly less than a diameter of the handle portion. The rubber sheath has an open upper end and an open lower end. The rubber sheath includes an embedded pull cord assembly disposed interiorly thereof. The embedded pull cord assembly is arranged in a coil type arrangement and is rigid, resisting compression and thus holding the sheath in an expanded position. The embedded pull cord assembly has a central lumen which is larger in diameter than the handle portion.

Abstract: A shock absorbing claw hammer consisting of a head with a striking face and a claw portion and having a chamber extending through the head. In a first embodiment, an inset step is formed at one end of the chamber to receive a cover plate and an aperture is formed at the opposite end to receive a handle. and The handle is affixed to the head with an epoxy base. The aperture is incompletely filled with shot and a cover plate is affixed to the head. The entire head assembly is cleaned and finished to produce a smooth finish. In a second embodiment, a hole is formed at the top of the chamber, which is sealed and finished after the shot is loaded in the chamber.

Abstract: The invention relates to a tool handle having a core that has a tool engaging end, an intermediate section, and a grip end. One or more rigid molded layers at least partially cover at least the intermediate section. The rigid molded layers include an outermost rigid layer having an undulated outer surface. The outermost rigid layer can include a portion that at least partially surrounds the grip end. In one aspect, that portion of the outermost rigid layer that surrounds the intermediate section is undulated and that portion of the outermost rigid layer that surrounds the grip end is free of undulations. The tool handles according to the invention dampen vibration that is transmitted from the impact end of the tool handle to the grip end that is held by the user. The invention also relates to impact tools having tool handles that dampen vibration before it is transmitted from the head to the grip section of the handle.

Abstract: An improved nonrecoil or deadblow hammer and related production method are provided, wherein the hammer has a tool head of hardened steel or the like formed with a hollow socket containing a filler material adapted to shift in the direction of an impact blow struck by the hammer to absorb or dissipate shock forces and thereby substantially reduce or eliminate tool head rebound. The tool head comprises a central body having, for example, a conventional impact member and a nail removal claw formed at opposite ends thereof. The hollow socket is formed in the central body and is upwardly open for seated reception of a hollow canister containing the filler material, such as a flowable and relatively high mass filler material in the form of small steel pellets. In a preferred configuration, the canister is preassembled with a tool handle which extends downwardly from the tool head through a handle port formed at the base or lower end of the socket.

Abstract: A shock-proof structure of the handle cover of a hand tool for improving the shock-proof ability of the handle cover Wherein the handle cover is made of soft elastic material and has a hollow handle shape The center portion of the handle cover has an axial engaging hole for being engaged by an inserting portion of the hand tool. Characterized in that. banks of vents are formed at sides of the upper and lower portions of the handle cover, each vent has a certain depth within the handle cover without penetrating the handle cover Thereby, the vents is formed as air bags in the upper and lower portions of the handle cover and as a shock-proof structure of the handle cover Wherein when a react impact is induced from an object due to the hand tool, since user's hand holds the periphery of the vents, thus, the vents will be compressed and pinched so as to reduce the volume thereof.

Abstract: An improved nonrecoil or deadblow hammer and related production method are provided, wherein the hammer has a tool head of hardened steel or the like formed with a hollow socket containing a flowable filler material adapted to absorb or dissipate shock forces and thereby substantially reduce or eliminate rebound when an impact blow is struck by the hammer. The tool head comprises a central body having, for example, a conventional impact member and a nail removal claw formed at opposite ends thereof. The hollow socket is formed in the central body and is upwardly open for seated reception of a hollow canister containing the flowable filler material, such as small steel pellets. In the preferred form, the canister is preassembled with a tool handle which extends downwardly from the tool head through a handle port formed at the base or lower end of the socket.

Abstract: An anti-shock structure of a hammer handle comprises a main rod, a handle sleeve, an elastic element, and a plug. A longitudinal storing slot is disposed inside the handle sleeve. The elastic element is disposed in the longitudinal storing slot. One end of the elastic element has a U-shaped portion. The elastic element's cross-sectional width is less than the longitudinal storing slot's cross-sectional width. So, during the swinging movement before knocking, the U-shaped portion of the elastic element will resist the reactive force so as to ensure the excellent holding effect. After the knocking, an opened portion of the elastic element will absorb the shock. That is, both excellent holding effect and the anti-shock function are achieved.

Abstract: A handle of a hand impact tool includes a pair of axial passages defined therein and a first row of axially spaced transverse openings defined in an outer periphery thereof and communicated with one of the axial passages. A second row of axially spaced transverse openings are defined in the outer periphery and communicates with the other axial passage. The axial passages are located in upper and lower end portions of the handle and are semi-circular or crescent in cross section. When hammering an object, the handle deforms not only in the axial direction but also in the radial direction due to provision of the transverse openings to effectively absorb shock resulting from hammering.

Abstract: A hammer includes a rigid elongated support structure, a head carried at one end of the support structure, and a manually engageable gripping portion. An end of the elongated support structure includes a pair of vibration-receiving portions terminating in spaced apart relation with respect to each other and spaced from each other in a direction parallel to a swing plane of the hammer. The manually engageable gripping portion is formed from a resiliently deformable material molded around a portion of the support structure including the vibration-receiving portions so as to fill the space between the vibration-receiving portions. Vibration forces acting in a direction parallel to the swing plane of the hammer are generated by striking a striking surface of the head against an object.

Abstract: A shock-proof structure of the handle cover of a hand tool for improving the shock-proof ability of the handle cover. Wherein the handle cover is made of soft elastic material and has a hollow handle shape. The center portion of the handle cover has an axial engaging hole for being engaged by an inserting portion of the hand tool. Characterized in that: banks of vents are formed at sides of the upper and lower portions of the handle cover, each vent has a certain depth within the handle cover without penetrating the handle cover. Thereby, the vents is formed as air bags in the upper and lower portions of the handle cover and as a shock-proof structure of the handle cover. Wherein when a react impact is induced from an object due to the hand tool, since user's hand holds the periphery of the vents, thus, the vents will be compressed and pinched so as to reduce the volume thereof. Meanwhile, the react impact from the hand tool is buffered.

Abstract: A system for absorbing shock including a resilient member positioned between a portion of the head and a portion of the shaft of the tool. The resilient member dampens and absorbs vibration travelling from the head to the shaft and reverberations travelling through the tool. The system also includes a shock-absorbing member having an internal portion positioned within a cavity in the head of the tool and an external portion positioned on an upper surface of the head that dampens and absorbs vibration travelling within the head and reverberations travelling through the tool. The system further includes a bonding material filling spaces with the cavity and a channel within the head that further dampens and absorbs vibration travelling from the head to the shaft and reverberations travelling through the tool. The system includes a handle portion that has a soft elastomeric outer coating that provides a comfortable grip to the user and hinders vibration from travelling from the shaft to the hand of the user.

Abstract: A shock-absorbing claw hammer includes a handle, a claw and a striking head. Vibrations in the handle caused by the striking head striking an object are at least partially reduced by shock-absorbing means. In one embodiment, the head includes a top surface and a lower surface, with the lower surface of the head coupled to the handle. The claw includes a first slit for pulling nails, and the head further defines a second slit extending from the top surface of the head towards the lower surface of the head situated generally between the striking head and the claw. In another embodiment, tension and compression rebars are positioned within the handle, with the striking head coupled to the compression rebar and the claw coupled to the tension rebar such that the striking head and the claw move relative to one another upon striking an object.