Abstract: A locating and clamping apparatus can prevent spatter from entering the clamp body through a spatter discharge hole. A longitudinal groove is formed in a side surface of the clamp body so as to communicate with both a spatter discharge hole and a hole for supporting a fulcrum pin. A spatter protecting cover having an upper cover member and a lower cover member is fitted in the longitudinal groove. The upper cover member of the spatter protecting cover prevents the fulcrum pin from coming off, and the lower cover member of the spatter protecting cover opens or closes the spatter discharge hole.

Abstract: A pair of throttle valves are installed to first and second installation holes of a cylinder tube, respectively. The throttle valve comprises a rotatable member, a needle which is engaged with the rotatable member and which controls the flow rate of a pressure fluid flowing through first and second bypass passages formed in each of the first and second installation holes, a covering member which covers each of said first and second installation holes, and a stopper ring which prevents the displacement of the rotatable member.

Abstract: A locating and clamping apparatus can prevent spatter from entering the clamp body through a spatter discharge hole. A longitudinal groove is formed in a side surface of the clamp body so as to communicate with both a spatter discharge hole and a hole for supporting a fulcrum pin. A spatter protecting cover having an upper cover member and a lower cover member is fitted in the longitudinal groove. The upper cover member of the spatter protecting cover prevents the fulcrum pin from coming off, and the lower cover member of the spatter protecting cover opens or closes the spatter discharge hole.

Abstract: A pair of throttle valves are installed to first and second installation holes of a cylinder tube, respectively. The throttle valve comprises a rotatable member, a needle which is engaged with the rotatable member and which controls the flow rate of a pressure fluid flowing through first and second bypass passages formed in each of the first and second installation holes, a covering member which covers each of said first and second installation holes, and a stopper ring which prevents the displacement of the rotatable member.

Abstract: A clamp apparatus comprises a single driving unit for displacing a piston rod in the axial direction, clamp arms which are rotatable by predetermined angles in accordance with the displacement action of the piston rod, a positioning pin which is displaceable in the axial direction in accordance with the displacement action of the piston rod, and a driving force-transmitting mechanism for operating the clamp arms and the positioning pin substantially simultaneously by transmitting the driving force of the driving unit to the clamp arms and the positioning pin respectively.

Abstract: A first cylinder of a smaller diameter and a second cylinder of a larger diameter are connected in a coaxially intercommunicating state. A first piston of a smaller diameter which is hermetically slidable within the first cylinder is mounted on a rod which is commonly passed through the two cylinders in such a way as to permit the first piston to move also in the second cylinder. Received in the second cylinder is a second piston which is hermetically slidable only in the second cylinder and which is adapted to be integrally coupled with the first piston during movements within the second cylinder.