Abstract: Provided is a belt-type grinding tool allowing an endless grinding belt replacement operation to be performed without requiring a large force. A belt-type grinding tool has an endless grinding belt wound around a drive pulley provided in a tool body and an idler pulley rotatably supported by a pulley support bar. The grinding tool has a spring urging the pulley support bar forward relative to the tool body, thereby causing the idler pulley to press the endless grinding belt forward to apply a tension to the endless grinding belt, and a spring support member movably attached to the tool body to support and compress the spring, the spring support member being movable between a first position where the idler pulley applies a tension to the endless grinding belt and a second position where the spring support member is displaced from the first position to reduce the amount of compression of the spring to reduce the tension.

Abstract: A system for handling valuable documents is provided that comprises a validator 2 for validating authenticity of a valuable document, and a printer 3 for printing on a card 20 information in validator 2 and an interface 4 for connecting validator 2 and printer 3 for their intercommunication. Automatically or after a certain period of time, validator 2 transmits its stored validation information to printer 3 through interface 4. Otherwise, receiving a transmission instruction signal of validation information given upon turning a trigger switch on or receiving a retrieval instruction signal from printer 3, validator 2 transmits its stored validation information to printer 3 through interface 4 to print the validation information on card 20.

Abstract: Provided is a belt-type grinding tool allowing an endless grinding belt replacement operation to be performed without requiring a large force. A belt-type grinding tool has an endless grinding belt wound around a drive pulley provided in a tool body and an idler pulley rotatably supported by a pulley support bar. The grinding tool has a spring urging the pulley support bar forward relative to the tool body, thereby causing the idler pulley to press the endless grinding belt forward to apply a tension to the endless grinding belt, and a spring support member movably attached to the tool body to support and compress the spring, the spring support member being movable between a first position where the idler pulley applies a tension to the endless grinding belt and a second position where the spring support member is displaced from the first position to reduce the amount of compression of the spring to reduce the tension.

Abstract: A film-forming apparatus capable of discharging a feedstock gas and a reactive gas to an inner side of the vacuum chamber by more effectively cooling the gases without mixing them in comparison with the conventional art. A discharge plate having a first face exposed inside the vacuum chamber is provided with a plurality of feedstock gas introduction holes and a plurality of reactive gas introduction holes penetrating the discharge plate. A plurality of grooves having the feedstock gas introduction holes located on the bottom face are formed in the second face opposite to the first face of the discharge plate, a top plate that covers the groove is arranged over the second face, and the feedstock gas through-hole formed in the top plate and the feedstock gas introduction hole are connected to each other with the first auxiliary pipe.

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: A rotationally driven air tool configured to be capable of retaining a lubricant in a gear of a rotation transmitting mechanism as long as possible has an air motor (14), a rotation transmitting mechanism (18) transmitting rotational driving force from a rotational output shaft (12) of the air motor to a rotary tool member (15), e.g. an abrasive disc, and a housing (28) having a motor chamber (20), a rotation transmitting chamber (22), a partition (24) between the motor chamber and the rotation transmitting chamber, and an air blow port (72) provided to extend through the partition to blow air discharged from the air motor toward a peripheral wall surface of the rotation transmitting chamber.

Abstract: A system for handling valuable documents is provided that comprises a validator 2 for validating authenticity of a valuable document, and a printer 3 for printing on a card 20 information in validator 2 and an interface 4 for connecting validator 2 and printer 3 for their intercommunication. Automatically or after a certain period of time, validator 2 transmits its stored validation information to printer 3 through interface 4. Otherwise, receiving a transmission instruction signal of validation information given upon turning a trigger switch on or receiving a retrieval instruction signal from printer 3, validator 2 transmits its stored validation information to printer 3 through interface 4 to print the validation information on card 20.

Abstract: A rotationally driven air tool configured to be capable of retaining a lubricant in a gear of a rotation transmitting mechanism as long as possible has an air motor (14), a rotation transmitting mechanism (18) transmitting rotational driving force from a rotational output shaft (12) of the air motor to a rotary tool member (15), e.g. an abrasive disc, and a housing (28) having a motor chamber (20), a rotation transmitting chamber (22), a partition (24) between the motor chamber and the rotation transmitting chamber, and an air blow port (72) provided to extend through the partition to blow air discharged from the air motor toward a peripheral wall surface of the rotation transmitting chamber.

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 serial communication device capable of reducing the load on the CPU is provided for a system using the serial communications such as the car navigation system. The attention is focused on the control method of the serial communication, in which a DMA controller is used for the data reception in the serial communication, and a number larger than the number of data received at a time is set in advance as the number of transfers of the receive DMA controller, and further, the function to generate the timeout interrupt when data is not received for a certain period is added to the serial interface, so that the serial communication can be controlled and performed without applying the load on the CPU.

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 storage control device of bank structure is provided which comprises a CPU 1 and a storage 2 connected to CPU 1. Storage 2 detects and temporarily holds one of the bank addresses 0DF00h-7DF07h of the bank memories 9 to be read out next by CPU 1 when one of the bank memories 9 is read out by CPU 1 so that storage 2 supplies the held bank address 0DF00h-7DF07h to a memory control device 3 which thereby is switched to a next bank memory when CPU 1 produces a next retrieval signal. Accordingly, CPU 1 of small capacity reads information from storage of larger capacity to operate a controlled system connected to CPU 1 of the storage control device.

Abstract: An impact tool enables a front cover part to be easily attached to and detached from a housing body, with a device having a simplified structure. The front cover part has an annular fastening portion clamped to the outer peripheral surface of a front edge portion of the housing body, a cylindrical portion extending from the front end of the housing to the region of the fastening portion, and a connecting portion connecting together the cylindrical portion and the fastening portion. The fastening portion is split at a circumferential part thereof to form a pair of circumferentially opposing tongue-shaped portions. A clamping device is provided between the tongue-shaped portions, which is movable between a clamping position where it pulls the tongue-shaped portions toward each other and an unclamping position where the tongue-shaped portions are released from being pulled toward each other.

Abstract: An impact tool enables a front cover part to be easily attached to and detached from a housing body, with a device having a simplified structure. The front cover part has an annular fastening portion clamped to the outer peripheral surface of a front edge portion of the housing body, a cylindrical portion extending from the front end of the housing to the region of the fastening portion, and a connecting portion connecting together the cylindrical portion and the fastening portion. The fastening portion is split at a circumferential part thereof to form a pair of circumferentially opposing tongue-shaped portions. A clamping device is provided between the tongue-shaped portions, which is movable between a clamping position where it pulls the tongue-shaped portions toward each other and an unclamping position where the tongue-shaped portions are released from being pulled toward each other.

Abstract: An impact tool enables a front cover part to be easily attached to and detached from a housing body, with a device having a simplified structure. The front cover part has an annular fastening portion clamped to the outer peripheral surface of a front edge portion of the housing body, a cylindrical portion extending from the front end of the housing to the region of the fastening portion, and a connecting portion connecting together the cylindrical portion and the fastening portion. The fastening portion is split at a circumferential part thereof to form a pair of circumferentially opposing tongue-shaped portions. A clamping device is provided between the tongue-shaped portions, which is movable between a clamping position where it pulls the tongue-shaped portions toward each other and an unclamping position where the tongue-shaped portions are released from being pulled toward each other.

Abstract: A storage control device of bank structure is provided which comprises a CPU 1 and a storage 2 connected to CPU 1. Storage 2 detects and temporarily holds one of the bank addresses 0DF00h-7DF07h of the bank memories 9 to be read out next by CPU 1 when one of the bank memories 9 is read out by CPU 1 so that storage 2 supplies the held bank address 0DF00h-7DF07h to a memory control device 3 which thereby is switched to a next bank memory when CPU 1 produces a next retrieval signal. Accordingly, CPU 1 of small capacity reads information from storage of larger capacity to operate a controlled system connected to CPU 1 of the storage control device.

Abstract: An impact tool enables a front cover part to be easily attached to and detached from a housing body, with a device having a simplified structure. The front cover part has an annular fastening portion clamped to the outer peripheral surface of a front edge portion of the housing body, a cylindrical portion extending from the front end of the housing to the region of the fastening portion, and a connecting portion connecting together the cylindrical portion and the fastening portion. The fastening portion is split at a circumferential part thereof to form a pair of circumferentially opposing tongue-shaped portions. A clamping device is provided between the tongue-shaped portions, which is movable between a clamping position where it pulls the tongue-shaped portions toward each other and an unclamping position where the tongue-shaped portions are released from being pulled toward each other.