摘要:
The present invention relates to a precharge/discharge nonvolatile memory circuit for detecting signals output from two bit lines on read-cell and dummy cell sides using a flip-flop circuit, comprising a first row decoder on the read-cell side, a second row decoder on the dummy-cell side, a first column decoder on the read-cell side, a second column decoder on the dummy-cell side, a read cell selected by the first row decoder and the first column decoder, a dummy cell selected by the second row decoder and the second column decoder, first and second precharge transistors for performing a precharge operation, first and second discharge transistors for performing a discharge operation, the flip-flop circuit, a discharge control circuit for generating a discharge signal, and a precharge control circuit for generating a precharge signal after the discharge signal is generated from the discharge control circuit.
摘要:
An idle position detection switch, in which a fixed contact, a terminal for transmitting an idle position signal to an external terminal, and a support disc firmly attaching both the fixed contact and the terminal are insert-molded into a connector made of a resin. As a result of the construction, not only the switch can be fabricated with less components and less cost, but also each contact portion has such an improved rigidity as to allow the incidence of false contacts to be reduced.
摘要:
A return spring assembly for use in an engine intake throttle valve return device comprising a spring holder sleeve (17) including an inner and outer sleeves (18,20) placed over a throttle valve shaft (3) and connected at one end to each other so that the inner and outer sleeves (18,20) are spacedly and concentrically held. Inner and outer torsion coil springs (8,9) are supported on the inner and outer sleeves (18,20), respectively, and connected between an intake barrel (1) and the valve shaft (3) for urging the throttle valve (2) to its closed position. An eccentric radial flange (22) which may be circular, oval or polygonal is provided on the outer sleeve (20) for holding the outer torsion coil spring (9). The eccentric flange (22) extends continuously over the entire circumference of the outer sleeve (20) and has a maximum outer diametrical dimension substantially equal to the inner diameter of the outer torsion coil spring (9). The eccentric flange (22) is eccentric with respect to the outer sleeve (20) by an amount effective to prevent the outer coil spring (9) from being disclocated from the outer sleeve (20).
摘要:
A cup-shaped spring holder having a flange on the outer periphery on the open end side is secured on the end portion of a valve shaft which protrudes outwardly from a carburetor barrel, with a clearance for coil insertion provided between the barrel and the open-end side. An outer torsion coil spring is fitted in the aforementioned spring holder to restrain an axial shift of the spring. And one end of an inner torsion coil spring fitted on the aforementioned shaft end portion is led out through the aforementioned clearance and retained by a spring retainer on the aforesaid barrel. Because of the above-described constitution, this invention features simple construction, easy manufacture, increased mechanical strength, a less number of components parts required, easy assembly, and improved valve shaft strength.
摘要:
An idling position detecting switch for an internal-combustion engine, comprising a conductive tubular housing mounted on a throttle body of a throttle valve for regulating fuel-air mixture supply rate provided on an intake manifold for supplying a mixture to the combustion chamber of an internal-combustion engine, a push rod axially slidably supported in the housing and having one end projecting from one end of the housing so as to be in contact with a stopper connected to a valve shaft of the throttle valve, and the other end disposed within the housing and provided at the extremity thereof with a movable contact, a fixed contact disposed opposite to the movable contact within the housing, and a spring urging the push rod toward the stopper so that the movable contact is separated from the fixed contact and absorbing shocks applied to the push rod by the stopper of the throttle valve. The spring has one end firmly fixed to the push rod at a position near the movable contact and the other end firmly fixed to an inner surface of the housing. A detention mechanism is provided to prevent the turning motion of the spring within the housing due to a turning effect resulting from an axial sliding movement of the push rod.
摘要:
A hydraulic buffer of the type in which a damping force can be controlled has a piston rod projecting from a cylinder, and a bracket attached to the projecting end of the piston rod. The bracket has at least two claws which are bent inwardly to face each other. A retainer is provided with at least two fitting portions having flukes and the fitting portions are adapted to engage with respective claws of the bracket. An actuator is attached to the retainer to control the damping force of the buffer. A spring device is provided for biasing the retainer to prevent the flukes from being disengaged from the corresponding claws of the bracket, and the spring device supports the retainer on the bracket.
摘要:
An apparatus for recording pits and grooves on the surface of a recording medium such as an optical disk in which the pits and grooves are formed by separate light sources, thereby providing accurate control over the dimensions of both the pits and grooves. Light beams of separate wavelengths suitable for forming the pits and grooves are passed through respective optical modulators and continuously variable beam expanders, and then combined and applied through a focusing lens to the recording medium. A beam monitor and a focus monitor receive part of the light reflected from the surface of the disk to control the focus and beam size conditions.
摘要:
A fuel injection control apparatus for an internal combustion engine using a hot-wire type air flow sensor wherein, even during a low engine speed and in a fully opened condition of the throttle valve of the engine, the output of the air flow sensor is corrected corresponding to the opening of the throttle valve and the engine speed on the basis on a predetermined relationship therebetween, thereby providing a proper A/F ratio.
摘要:
A synchronized dog clutch according to the invention comprises a clutch shaft, a coupling sleeve splined to the clutch shaft and having dog claws at its end, a synchronizer ring slidably fitted to outer periphery of the coupling sleeve, said synchronizer ring having a conical face for frictional engagement and being rotatable together with the coupling sleeve, and a gear wheel coaxially and rotatably arranged with respect to the clutch shaft and having teeth at its outer periphery. The gear wheel is provided with a conical face and claws respectively engagable with the conical face of the synchronizer ring and the claws of the coupling sleeve. The conical face of the gear wheel is disposed closely and radially inside the teeth, and the claws of the gear wheel are arranged inside the conical face, and thereby torque transmitted through the conical faces for synchronization is increased.
摘要:
A sheet-feed roller system that employs an annular deformable resilient roller eccentrically mounted on a shaft for rotation whereby rotation of the shaft brings the roller into contact with sheets only when they are to be fed by the roller in order to increase the feed force while minimizing the pressing force on the sheets to thereby reduce sheet misfeed.