Abstract: In an endless belt type grinding tool, a tension bar includes a front portion and a rear portion which are divided from each other in a tubular holding portion. The front portion and the rear portion forcibly abut against each other when the endless grinding belt wound around the drive pulley and the idle pulley is applied with a tension by the spring. The endless belt type grinding tool includes a locking member which, when the tension bar is pushed into the tubular holding portion against the spring, engages with the rear portion of the tension bar to retain the rear portion at the pushed position against the urging force of the spring. Thus, in a state in which the grinding belt is removed, it is possible to reduce damage even if the tension bar, which is being pushed in, accidentally jumps out.

Abstract: A pneumatic tool which can be easily assembled. This pneumatic tool includes a tool housing and an air supply pipe. The tool housing includes a motor housing having a tubular wall, and a tubular air supply/exhaust portion connected to the side surface of the tubular wall and extending rearwardly of the pneumatic tool. The air supply pipe has a valve unit, and is inserted into and set in the air supply/exhaust portion. The air supply/exhaust portion has an air supply passage extending from the motor housing. When the air supply pipe is inserted into and fixed to the air supply/exhaust portion, the forward end portion of the air supply pipe is communicated with a rear end opening of the air supply passage of the air supply/exhaust portion, whereby a compressed air supply passage to an air motor is formed.

Abstract: In an endless belt type grinding tool, a tension bar 18 includes a front portion 18-3 and a rear portion 18-4 which are divided from each other in a tubular holding portion 16. The front portion 18-3 and the rear portion 18-4 forcibly abut against each other when the endless grinding belt wound around the drive pulley and the idle pulley is applied with a tension by the spring. The endless belt type grinding tool includes a locking member 26 which, when the tension bar is pushed into the tubular holding portion 16 against the spring 24, engages with the rear portion 18-4 of the tension bar 18 to retain the rear portion 18-4 at the pushed position against the urging force of the spring 24. Thus, in a state in which the grinding belt is removed, it is possible to reduce damage even if the tension bar, which is being pushed in, accidentally jumps out.

Abstract: A pneumatic tool which can be easily assembled. This pneumatic tool includes a tool housing (18) and an air supply pipe (36). The tool housing (18) includes a motor housing (16) having a tubular wall (14), and a tubular air supply/exhaust portion (34) connected to the side surface of the tubular wall and extending rearwardly of the pneumatic tool. The air supply pipe (36) has a valve unit, and is inserted into and set in the air supply/exhaust portion. The air supply/exhaust portion (34) has an air supply passage (56) extending from the motor housing (16). When the air supply pipe (36) is inserted into and fixed to the air supply/exhaust portion (34), the forward end portion of the air supply pipe is communicated with a rear end opening (56c) of the air supply passage (56) of the air supply/exhaust portion (34), whereby a compressed air supply passage to an air motor is formed.

Abstract: The invention of this application provides a pneumatic tool with a simple structure. The tool has a tubular housing, a stationary shaft, a first piston slidable along the stationary shaft, a second piston, a tool attachment member drivingly connected to the second piston, a compressed air supply path extending through the stationary shaft to supply compressed air between the first and second pistons, and an air discharge path for discharging the compressed air supplied between the first and second pistons to the outside of the housing when the first and second pistons are separated by a predetermined distance. The compressed air supply path has an axial portion in the stationary shaft and a radial portion, a compressed air inlet recess in the inner wall surface of a shaft sliding hole, and a supply outlet extending forward from the forward end of the compressed air inlet recess and communicating with a portion between the first and second pistons.

Abstract: The invention of this application provides a pneumatic tool with a simple structure. The tool has a tubular housing (50), a stationary shaft (52), a first piston (56) slidable along the stationary shaft, a second piston (58), a tool attachment member (60) drivingly connected to the second piston, a compressed air supply path (70) extending through the stationary shaft to supply compressed air between the first and second pistons, and an air discharge path (76) for discharging the compressed air supplied between the first and second pistons to the outside of the housing when the first and second pistons are separated by a predetermined distance. The compressed air supply path has an axial portion (70a) in the stationary shaft and a radial portion (70b), a compressed air inlet recess (70c) in the inner wall surface of a shaft sliding hole, and a supply outlet (70d) extending forward from the forward end of the compressed air inlet recess and communicating with a portion between the first and second pistons.

Abstract: A remedial device for hand insufficiency includes a device body having an obverse surface and a reverse surface, a compressed air supply source and an air supply-discharge hose interconnecting the device body and the compressed air supply source. Each of the obverse and reverse surfaces of the device body is provided thereon with a plurality of air sacks inflated and shrunken by the action of compressed air supplied and discharged for expanding and elongating the fingers and for elongating the wrist and arm joint. The air supply-discharge hose constitutes an air supply-discharge circuit provided with two branched circuits for compressed air which are disposed independently on an air supply-discharge side for the air sacks for elongating and expanding the fingers and on an air supply-discharge side for the air sacks for elongating the wrist and arm joint.

Abstract: A nozzle with sucker comprises a nozzle body having a jet hole for hot water, a sucker attached to a rear face portion of the nozzle body and adapted to fix the nozzle body to the surface of a wall of a bathtub by suction, and an angle adjusting member for adjusting the angle of the nozzle body compared to the surface of hot water in the bathtub. Thus, the nozzle can be easily attached to and detached from the wall surface of the bathtub.

Abstract: A massage-action shower head comprising a housing provided with a hot water entrance, a plurality of bores through which hot water is showered and a hole through which mixture of hot water and air is jetted, a first passage line formed in said housing and being capable of communicating the hot water entrance with the plural hot water showering bores, a second passage line formed in said housing and being capable of communicating the hot water entrance with the hot water jetting hole, an air introducing means provided in said housing to supply air from outside to said second passage line, and a changeover means provided under water for communicating said hot water entrance with at least one of the first and second passage lines.