Abstract: A modular plug attaching and detaching tool includes a first holder configured to accommodate a plurality of modular plugs in an aligned state and a second holder configured to press unlocking claws of the plurality of modular plugs when the second holder is attached to the first holder. The first holder includes an engagement groove extending in an inserting direction of the modular plug. The second holder includes an engagement part configured to engage with the engagement groove of the first holder by being moved in the inserting direction.

Abstract: A modular plug attaching and detaching tool includes a first holder configured to accommodate a plurality of modular plugs in an aligned state and a second holder configured to press unlocking claws of the plurality of modular plugs when the second holder is attached to the first holder. The first holder includes an engagement groove extending in an inserting direction of the modular plug. The second holder includes an engagement part configured to engage with the engagement groove of the first holder by being moved in the inserting direction.

Abstract: A communication apparatus which occupies small space and yet can be connected with numerous external cables and which permits a cooling arrangement to be constructed at low cost. An information processing device constituting the communication apparatus has external cable connection ports provided on both top and bottom surfaces thereof, and thus, more external cables can be connected than in the case of connecting the cables to the side surfaces. Also, the external cables connected to the ports are guided along the top and bottom surfaces toward the front of the communication apparatus with their heights restricted by external cable covers and, therefore, do not occupy substantial space above and below the device. Further, since the external cables are connected to the top and bottom surfaces, the front and rear surfaces of the device have spare space, making it possible to construct a ventilation arrangement such as vent holes and fans.

Abstract: A connector mounting structure is disclosed that includes a connector mounted on a substrate. The connector includes plural connector rows that are arranged into a laminated structure. The connector rows include plural connector units that are arranged into rows. The positions of the connector units of a first connector row of the laminated connector rows are shifted with respect to the positions of the connector units of a second connector row that is arranged above the first connector row.

Abstract: A communication apparatus which occupies small space and yet can be connected with numerous external cables and which permits a cooling arrangement to be constructed at low cost. An information processing device constituting the communication apparatus has external cable connection ports provided on both top and bottom surfaces thereof, and thus, more external cables can be connected than in the case of connecting the cables to the side surfaces. Also, the external cables connected to the ports are guided along the top and bottom surfaces toward the front of the communication apparatus with their heights restricted by external cable covers and, therefore, do not occupy substantial space above and below the device. Further, since the external cables are connected to the top and bottom surfaces, the front and rear surfaces of the device have spare space, making it possible to construct a ventilation arrangement such as vent holes and fans.

Abstract: A cooling structure for electronic equipment including a plurality of electronic devices superposed on each other, each of the electronic devices having a lower part where an air ventilation part configured to ventilate air so as to cool the electronic device is provided, the cooling structure includes an air intake and exhaust hole forming part which is formed at an upper part of a first one of the electronic devices and below the air ventilation part of a second one of the electronic devices provided on the first electronic device. Air outside of the electronic equipment is taken into an inside of the second electronic device or air inside of the first electronic device is exhausted to the outside of the electronic equipment via the air intake and exhaust hole forming part, so that an amount of the air ventilated inside of the first electronic device is controlled.

Abstract: A connector mounting structure is disclosed that includes a connector mounted on a substrate. The connector includes plural connector rows that are arranged into a laminated structure. The connector rows include plural connector units that are arranged into rows. The positions of the connector units of a first connector row of the laminated connector rows are shifted with respect to the positions of the connector units of a second connector row that is arranged above the first connector row.

Abstract: A cooling structure for electronic equipment including a plurality of electronic devices superposed on each other, each of the electronic devices having a lower part where an air ventilation part configured to ventilate air so as to cool the electronic device is provided, the cooling structure includes an air intake and exhaust hole forming part which is formed at an upper part of a first one of the electronic devices and below the air ventilation part of a second one of the electronic devices provided on the first electronic device. Air outside of the electronic equipment is taken into an inside of the first electronic device or air inside of the second electronic device is exhausted to the outside of the electronic equipment via the air intake and exhaust hole forming part, so that an amount of the air ventilated inside of the first electric device is controlled.

Abstract: An ultrasonic motor capable of being accurately step-driven comprises a vibrating member piezoelectrically vibrated for driving and halting a movable member. A driving wave is generated for vibrating the vibrating member to drive the movable member, and a halting wave is generated for vibrating the vibrating member to halt the movable member. The driving wave can be either a travelling wave or a standing wave, and the halting wave is a standing wave. The movable member is divided into a plurality of portions, and when the vibrating member is driven by the halting wave, the portions of the movable member become centered at respective nodal portions of the standing halting wave, causing the movable member to stop rotating so that the ultrasonic motor can be accurately step-driven.

Abstract: A warp prevention structure for a printed circuit board, capable of serving also to perform the slack handling of cables. The warp prevention structure includes a first warp prevention fitting mounted on the printed circuit board in the vicinity of an upper edge thereof so as to extend along the upper edge, and a second warp prevention fitting mounted on the printed circuit board in the vicinity of a lower edge thereof so as to extend along the lower edge. Each of the first and second warp prevention fittings is integrally formed with a plurality of cable holders arranged at equal intervals.

Abstract: An ultrasonic motor comprises a traveling wave generating circuit for generating a traveling wave signal effective to drive a moving member, and a standing wave generating circuit for generating at least one type of standing wave signal effective to stop movement of the moving member. A switching circuit is receptive of the traveling wave signal and the standing wave signal for selecting one of the traveling wave and the standing wave signals as an output signal. A piezoelectric vibrator drive circuit is receptive of the output signal of the switching circuit for producing a high-frequency voltage signal. At least one piezoelectric vibrator includes an electrode pattern and is adapted to be driven by the voltage signal to undergo expansion and compression. A vibrating member is fixed to the piezoelectric vibrator and vibrationally driven by the expansion and compression movement of the piezoelectric vibrator.

Abstract: A traveller having two ultrasonic motors, each of which movable member drives the driving wheel respectively. The ultrasonic motor comprises a vibrating member, a moving member and a pressure regulating member. The driving circuit sends signals to turn the ultrasonic motor, which turn the moving memeber to turn the driving wheel. With the driving wheel turning, the traveller travels freely in any direction. Each of two ultrasonic motors receives respective signals to travel freely in any direction as a effect.

Abstract: An ultrasonic motor utilizing flexural travelling wave components. A ball bearing is constituted by the inner ring, the balls, and an outer ring provided with a groove similar to the ball positioning groove of the inner ring, at a position where the ball are interposed. A rotor is provided inside the amplifying projections which are formed in the vibration member. A coil spring is provided in order to bring the rotor and the projections of the vibration member into pressure contact with each other. A spring pressing seat having a groove for receiving the other end of the coil spring is fixed to the support pin, with the coil spring and the support pin centered. The coil spring receiving groove of the inner ring and the coil spring are positioned so as not to share the same vertical plane with the ball. In this manner the thickness of the ultrasonic motor can be reduced.