A force limiting device has a housing defining an axially extending chamber containing a working fluid. A force transmitting member may be mounted for linear reciprocable movement inside the chamber under the action of external loads. An axial array of plates is floatingly disposed in the chamber between the force transmitting member and an end wall of the chamber. At rest, each plate is spaced from an adjacent plate by a gap occupied by the working fluid. When the force transmitting member is displaced towards the array of plates, the fluid in the chamber causes the plates to be successively pushed against each other, thereby causing some of the fluid to be squeezed out from between the plates.

A deadblow tool, comprising a head with one or more striking surfaces; a handle joined to or molded as one with the head; a plurality of hollow chambers within the tool embodiment; a plurality of freely moveable material partially filling the hollow chambers; and an embodiment in the form of a hammer, mallet, axe, or annular maul. The tool has hollow chambers created as part of the tool embodiment or created separately as chamber cartridges to be inserted into the tool embodiment. The hollow chambers and chamber cartridges vary in size and shape and the freely moveable material varies in density and volume to accommodate mass distribution and the adjustments thereof provide facilitation to further tune the tool balance and strike performance. Construction methods of chamber cartridges and deadblow handles, hammers, mallets, axes, and mauls are also provided.

A deadblow tool, comprising a head with one or more striking surfaces; a handle joined to or molded as one with the head; a plurality of hollow chambers within the tool embodiment; a plurality of freely moveable material partially filling the hollow chambers; and an embodiment in the form of a hammer, mallet, axe, or annular maul. The tool has hollow chambers created as part of the tool embodiment or created separately as chamber cartridges to be inserted into the tool embodiment. The hollow chambers and chamber cartridges vary in size and shape and the freely moveable material varies in density and volume to accommodate mass distribution and the adjustments thereof provide facilitation to further tune the tool balance and strike performance. Construction methods of chamber cartridges and deadblow handles, hammers, mallets, axes, and mauls are also provided.

A force-limiting and damping device has a body, a tapping element, an elastic element, and a reinforcing element. The body has a connecting segment with a mounting hole. The tapping element is movably connected to the body and has a mounting segment, a tapping segment, a fixing segment, and a protrusion segment. The protrusion segment is formed on a connecting portion between the mounting segment and the tapping segment. The reinforcing element is mounted on the tapping element between the elastic element and the tapping segment of the tapping element and abuts against the protrusion segment. The force-limiting and damping device can improve structural strength, can prolong service life, and can avoid deflection during a tapping process.

A force-limiting and damping device has a body, a tapping element, an elastic element, and a reinforcing element. The body has a connecting segment with a mounting hole. The tapping element is movably connected to the body and has a mounting segment, a tapping segment, a fixing segment, and a protrusion segment. The protrusion segment is formed on a connecting portion between the mounting segment and the tapping segment. The reinforcing element is mounted on the tapping element between the elastic element and the tapping segment of the tapping element and abuts against the protrusion segment. The force-limiting and damping device can improve structural strength, can prolong service life, and can avoid deflection during a tapping process.

A hand tool with a buffering effect has a body, a working element, and at least one shock-absorbing element. The body has a holding end and a connecting end respectively disposed on two ends of the body. The working element is connected to the connecting end of the body. The least one shock-absorbing element is disposed on the body between the holding end and the connecting end and has a length being larger than a half of a length of the body and being less than or equal to the length of the body. A user holds the body and uses the working element, and a shock-absorbing and buffering effect is provided by the at least one shock-absorbing element.

A hand tool with a buffering effect has a body, a working element, and at least one shock-absorbing element. The body has a holding end and a connecting end respectively disposed on two ends of the body. The working element is connected to the connecting end of the body. The least one shock-absorbing element is disposed on the body between the holding end and the connecting end and has a length being larger than a half of a length of the body and being less than or equal to the length of the body. A user holds the body and uses the working element, and a shock-absorbing and buffering effect is provided by the at least one shock-absorbing element.

A hammer has a head connected to a lightweight handle with a center of gravity that is proximate to the head of the hammer and separated from the base of the handle by 85%-95% of the total hammer length, measured from the base of the handle to the top side of the head. The handle weight is between 10%-20%. Accordingly, the lighter handle allows the center of gravity of the hammer to be within 85%-95% of the total hammer length from the base of the handle while maintaining a comfortable head weight between 14 oz. and 25 oz. The hammer also has inflection point proximate to the base of the handle providing multiple gripping sections to allow a user to grip the handle in different locations and at different gripping angles that move relative to the longitudinal axis of the hammer.

A hammer has a head connected to a lightweight handle with a center of gravity that is proximate to the head of the hammer and separated from the base of the handle by 85%-95% of the total hammer length, measured from the base of the handle to the top side of the head. The handle weight is between 10%-20%. Accordingly, the lighter handle allows the center of gravity of the hammer to be within 85%-95% of the total hammer length from the base of the handle while maintaining a comfortable head weight between 14 oz. and 25 oz. The hammer also has inflection point proximate to the base of the handle providing multiple gripping sections to allow a user to grip the handle in different locations and at different gripping angles that move relative to the longitudinal axis of the hammer.

A damping return hammer includes a grip handle, a first elastic damping arm, a second elastic damping arm, and a hammer head provided at the fronts of the first elastic damping arm and the second elastic damping arm, respectively. The front ends of the first elastic damping arm and the second elastic damping arm are upper and lower respectively, and extend at a certain distance forward and are in the same longitudinal section. The two hammer heads are provided at the front ends of the first elastic damping arm and the second elastic damping arm respectively. A gap is between the two hammer heads and is fitted therein with a rubber energy-storage cushion block.