Disclosed herein is a grip comprising an internal bore with an opening having an internal tapered edge. The grip can engage with a tool or a piece of sports equipment. Further disclosed herein is a method of installing a grip onto a tool or piece of sports equipment, including providing a grip having a tubular body; grinding an open first end of the body, wherein the open first end comprises a greatest diameter closest to the exterior of the bore and tapers internally at an angle towards the interior of the bore; providing a shaft or handle; applying an adhesive to a top portion of the handle; sliding the handle into the grip bore until the shaft contacts the a capped second end of the grip; and coupling a surface of the bore to the handle by allowing the adhesive to dry.

A hand-held tool comprises a tool part and a handle surrounding a section of the tool part and connected to same in a torque-transmitting manner. The tool part comprises a connection contour used to connect the handle in a torque-transmitting manner at least in some areas, in a section surrounded by the handle. The handle comprises an inner handle piece which can be connected to the connection contour and surrounds same in a torque-transmitting manner. With the inner handle piece slid onto the connection contour, one or more outwardly-open casting channels are provided between the two parts. The handle further comprises an outer handle piece made of plastic, which during the course of a plastic moulding process is moulded around the unit comprising the tool part which has an inner handle piece connected to the connection contour thereof, wherein the at least one casting channel is at least partially filled with the plastic material which forms the outer handle piece. A method is also described for producing such a hand-held tool.

A hand-held tool comprises a tool part and a handle surrounding a section of the tool part and connected to same in a torque-transmitting manner. The tool part comprises a connection contour used to connect the handle in a torque-transmitting manner at least in some areas, in a section surrounded by the handle. The handle comprises an inner handle piece which can be connected to the connection contour and surrounds same in a torque-transmitting manner. With the inner handle piece slid onto the connection contour, one or more outwardly-open casting channels are provided between the two parts. The handle further comprises an outer handle piece made of plastic, which during the course of a plastic moulding process is moulded around the unit comprising the tool part which has an inner handle piece connected to the connection contour thereof, wherein the at least one casting channel is at least partially filled with the plastic material which forms the outer handle piece. A method is also described for producing such a hand-held tool.

A hand tool may include a head having a bell and a face for delivering an impact, and a handle operably coupled to the head and extending linearly away from the head along an axis. The handle may include a grip portion proximate to a distal end of the handle. The grip portion may include a core material, an anti-vibration layer disposed around a periphery of the core material in a radial direction substantially perpendicular to the axis, and an outer layer disposed around a periphery of the anti-vibration layer. The anti-vibration layer is made of a first elastomeric polymeric material and the outer layer may be made of a second elastomeric polymeric material. The first elastomeric polymeric material may be softer than the second elastomeric polymeric material. A maximum acceleration ratio between the head and the handle is 0.075.

A hand tool may include a head having a bell and a face for delivering an impact, and a handle operably coupled to the head and extending linearly away from the head along an axis. The handle may include a grip portion proximate to a distal end of the handle. The grip portion may include a core material, an anti-vibration layer disposed around a periphery of the core material in a radial direction substantially perpendicular to the axis, and an outer layer disposed around a periphery of the anti-vibration layer. The anti-vibration layer is made of a first elastomeric polymeric material and the outer layer may be made of a second elastomeric polymeric material. The first elastomeric polymeric material may be softer than the second elastomeric polymeric material. A maximum acceleration ratio between the head and the handle is 0.075.

A joined body is formed by joining end surfaces of two joining members to each other by a friction welding. The joined body includes a hollow portion formed on at least one of the two joining members, the hollow portion being configured to have an opening at the joining face between the two joining members. The joined body also includes an annular groove portion formed on an inner circumferential surface of the hollow portion at a position separated from a joining face in an axial direction.

A welded structure makes a relationship between one intermittent weld which fixes a long member to a base material and the other intermittent weld which fixes a plate-shaped member to the long member appropriately respond to a type of a load which dominantly acts on the long member. A lower long side edge of a beam member which serves as the long member is fixed onto a machine body frame which serves as the base material by intermittent welds. A top plate which serves as the plate-shaped member is fixed onto an upper long side edge of the beam member by the other intermittent welds. In a region where a load which twists the top plate dominantly acts on the beam member, a parallel weld portion in which the intermittent welds and the intermittent welds are welded in a parallel weld form is employed, and in a region where a bending load from the top plate dominantly acts on the beam member, the zigzag weld portion in which the intermittent weld and the intermittent weld are welded in a zigzag weld form is employed.

A linerless adhesive carry handle. The carry handle can include a single layer of substrate material having a substantially elongated shape, two separate adhesive areas disposed at opposite ends of the substrate material, on the bottom surface thereof, a central non-adhesive area disposed on the bottom surface of the substrate between the two separate adhesive areas, and a release coating disposed on the top surface of the substrate, wherein the carry handle does not include a second layer of material covering the adhesive.

A linerless adhesive carry handle. The carry handle can include a single layer of substrate material having a substantially elongated shape, two separate adhesive areas disposed at opposite ends of the substrate material, on the bottom surface thereof, a central non-adhesive area disposed on the bottom surface of the substrate between the two separate adhesive areas, and a release coating disposed on the top surface of the substrate, wherein the carry handle does not include a second layer of material covering the adhesive.

A method of press-shaping a handle grip includes the steps of: providing an unshaped handle grip having a body portion, a middle hole, and an end head; providing an insertion rod having a body insertion portion for being inserted into the middle hole of the unshaped handle grip; providing a lower die and an upper die which can be pressed together, wherein the lower die and the upper die have body cavities, respectively, for receiving the body portion of the unshaped handle grip, and escape cavities adapted to communicate with the body cavities, respectively, and receive, but not press against, the end head of the unshaped handle grip; pressing together, then heating, and finally cooling the lower die and the upper die; and performing a mold-opening process to take a shaped handle grip thus obtained.