Abstract: A constant-speed cruising control apparatus for vehicles, which comprises a reed switch for generating a vehicle speed signal, a set switch for setting the cruising speed, a memory circuit for storing and outputting a cruising speed signal, a first comparing circuit for comparing the cruising speed signal with the vehicle speed signal, an actuator for actuating a throttle valve according to a signal output from the first comparing circuit, a first computing circuit for calculating expectation value of vehicle speed change on basis of the signal output from the first comparing circuit, a second computing circuit for calculating change of the vehicle speed signal, a second comparing circuit for comparing signals output from the first and the second computing circuits, and a down-shift circuit for shifting an automatic transmission into lower gear on basis of a signal output from the second comparing circuit.

Abstract: An actuator (1) of a diaphragm type which comprises an actuator case (2,3), a diaphragm (5) housed in the actuator case, a diaphragm plate (4) attached to the diaphragm for moving together with the diaphragm according to introduction of negative or atmospheric pressure into a negative pressure chamber (7) formed between the diaphragm and the actuator case (2) so as to actuate a device connected to the diaphragm plate. The diaphragm is formed with one or both of an annular rib (5e) having a thick-walled section and an annular expansive portion (5d) having a curved section. Therefore, the diaphragm is hard to be disengaged from the diaphragm plate even if an immoderate force is applied on the diaphragm.

Abstract: A wiper apparatus for wiping the windshield of a vehicle with a plurality of wiper blades operated by a plurality of wiper motors which comprises an intermittent switch, autostop switches disposed to the respective wiper motors, relays for operating the respective wiper motors in response to ON-states of the respective autostop switches, a relay driving circuit for driving the relays, a first timer circuit responsive to OFF-states of both the autostop switches for generating a first timer signal, a second timer circuit responsive to an intermittent signal from the intermittent switch and the ending edge of the first timer signal for generating a second timer signal, a third timer circuit responsive to an ON-state of either autostop switch for generating a third timer signal and holding the relay driving circuit to drive the relays, and a prohibiting circuit for forbidding and permitting the operation of the relay driving circuit according to the first timer signal and the second timer signal, respectively.

Abstract: An electric wiper motor, which comprises an armature housed in a motor casing, reduction gears housed in a gear casing coupled with the motor casing, an autostop mechanism for stopping a wiper blade at the predetermined position always, a cover member for covering an aperture of the gear casing, motor terminals having ends attached with brushes, and plural conductive plates disposed to the cover member in one body and forming an internal circuit for supplying an electric current to the armature through the autostop mechanism by connecting between an external circuit and the motor terminal or the autostop mechanism. According to this invention, it is easy to assemble the electric wiper motor with the autostop mechanism, and possible to improve the productivity.

Abstract: A steering wheel positioner for an automatic driving position system is provided with an actuator for driving a steering wheel shaft, a tilt sensor for detecting an inclination of the steering wheel shaft, a car speed sensor, a neutral-park relay for detecting the vehicle to be stepped and a controller for memorizing a steering wheel position suitable for the driver, for driving a steering wheel to the memorized steering wheel position through the actuator, for driving the steering wheel downwardly when the tilt sensor is abnormal, and for preventing the steering wheel from driving in the downward direction when the tilt sensor is abnormal and the neutral-park delay detects the vehicle to be traveling.

Abstract: A small-sized electric motor comprises a housing consisting of a motor case and a gear case, a pair of power terminals protruding outwardly from the housing to supply electric power to an armature of the motor and a connector housed with a pair of socket terminals for receiving the power terminals perpendicularly to the protruding direction of the power terminals. It is possible to connect the connector to the housing of the motor very easily and securely.

Abstract: A wiper apparatus is provided with a switching mechanism for spraying washing fluid in the leading direction of movement of a wiper blade at all times by actuating a valve synchronously with the oscillating movement of the wiper blade. The switching mechanism is composed mainly of a base member secured to the vehicle body and a casing member secured to the wiper arm which are disposed coaxially with a pivot shaft and coupled rotatably with each other to form a valve chest therebetween. A pair of valves attached to a disc member having an arcuate slot is disposed in the valve chest so as to alternately block ducts communicating with washer nozzles disposed on opposite sides of the wiper arm according to the engagement of opposite ends of the arcuate slot of the disc member with a contact piece on the base member every time the wiper blade arrives at the lower and the upper turning positions.

Abstract: A constant-speed cruising control system for vehicles comprises a car-speed sensor, a command switch group, a car-speed memory, an actuator for driving a throttle, and a control mechanism which has a cruising control function, a resuming control function after cancelling the cruising control and controls the vehicle speed so as to coincide with a reset cruising speed stored in reponse to a reset operation during the resuming control by driving the throttle in the decelerative direction of the vehicle for the time given by subtracting set initialize time from the sum total of time the throttle is controlled in the accelerative direction of the vehicle during the time from the operation of the resume switch till the reset operation. It is possible to solve the undershooting of the vehicle speed at the transitional time from the acceleration state to the cruising state at the constant-speed.

Abstract: A jet pump structure for a fuel tank having first and second chambers therein includes first, second and third fuel pipes all of which are connected to a vacuum chamber provided within the fuel tank. The first pipe returns oversupplied fuel into the vacuum chamber, the second pipe transfers fuel stored in the first chamber into the vacuum chamber, and the third pipe receives the fuel from the first and second pipes and discharge same into the second chamber. A flow guide member is provided within the first pipe, which receives the oversupplied fuel to form same into a swirl flow. The swirl flow is ejected from the first pipe as a jet flow into the vacuum chamber to provide a vacuum therearound within the vacuum chamber. The ejected swirl flow further works to seal the vacuum chamber against the third pipe so that the vacuum generated within the vacuum chamber is prevented from being released through the third pipe to effectively suck the fuel from the first chamber.

Abstract: A wiper control system includes measures an elapsed time of operation cycle, through which a wiper blade assembly performs one cycle of wiper operation. The wiper control system resets the measured elapsed time when ever the wiper blade assembly reaches a predetermined position. On the other hand, wiper control system detects the measured elapsed time exceeding a given period of time to initiate a predetermined fail-safe operation. In practice, the fail-safe operation is performed to intermittently drive the wiper motor with an interval which is long enough to sufficiently cooling off the wiper motor, when fail-safe operation is performed while wiper system is maintained ON, and to terminate driving of the wiper motor when the wiper system is turned OFF.

Abstract: An electromagnetic relay is provided with a movable contact sloped at a prescribed angle relative to an attracted face of an armature and a fixed contact sloped at a prescribed angle relative to an attracting face of a core. In this electromagnetic relay, it is possible to contact the movable and fixed contacts slidingly each other even when the armature is attached so as to be in contact with a frame.

Abstract: A motor driving device for rotating a motor in forward and reverse directions which includes a switching circuit arranged in an H-bridge connection with both terminals of the motor, a controlling circuit, and an interception device provided on the respective terminal sides of the motor. The switching circuit includes two sets of switching transistors. The interception device protects the switching circuit by preventing both transistor sets from entering the ON-state at the same time, and thereby prevent the switching means from breaking down.

Abstract: An automatic vehicle speed control device for controlling a running speed of a vehicle at a certain set speed includes a microcomputer having a vehicle speed memory for storing a vehicle speed upon operation of a command switch, a control circuit for adjusting a throttle valve through an actuator by calculating the difference between the stored vehicle speed of the vehicle speed memory and an actual vehicle speed, and a signal oscillating circuit for generating a watch dog pulse signal having a constant period under normal operation conditions. A monitor circuit having an exclusive NOR element for detecting watch dog pulses generated from the microcomputer senses whether or not the microcomputer has an abnormal operation and renders the actuator in a non-operated condition during the abnormal operation of the microcomputer.

Abstract: A motor driving device is provided with switches connected with both terminals of a motor in an H-bridge connection and malfunction detectors connected with both terminals of said motor. The malfunction detectors are comprised of an impression part and a detection part which can detect the breakdown of the respective switches caused by open breakage or short breakage according to an output signal from the detection part corresponding to an input signal from the impression part.

Abstract: A reduction gearing device of a windshield wiper motor is disclosed, which comprises a gearing mechanism having a high transmission efficiency and a stop-position controlling device. The gearing mechanism is provided with a unidirectional clutch, or an output shaft holding part comprising a bearing and a rotation controller provided with spring and roll for controlling the rotation in only one direction.

Abstract: A device for driving a roof-hatch includes a forwardly and reversely rotatable motor, an operation switch, a reduction mechanism having a friction clutch, and an auto-stopping device. The device makes it possible to facilitate the operation for opening or closing the roof-hatch and to prevent trouble in the running of the vehicle.

Abstract: A wiper arm is provided with a resinous intermediate member between a retainer made from an iron-based alloy and an arm head die cast from an aluminum alloy. The wiper arm is free from electrochemical corrosion because the retainer and the arm head are not in contact with each other due to said resinous intermediate member disposed therebetween.

Abstract: An electric windshield wiping apparatus, in which a unit for electrically changing the performance of the reverse rotation of wiper motor is selectively connected between the wiper control mechanism and wiper motor so that in the non-used state, the wiper is stored either at the lower turning position or a yet lower concealed position.

Abstract: A vehicular windshield washer system in combination with a windshield wiper having a wiper arm. The washer system is comprised of a pair of washer nozzles mountd on the wiper arm and so directed to eject washer fluid to opposite sides of the wiper arm upon being supplied with washer fluid. The washer fluid from a washer fluid source is selectively supplied to the washer nozzles in accordance with movement of the wiper arm. The washer fluid is suppliable to one of the washer nozzles upon rotational movement of the wiper arm in one direction and to the other washer nozzle upon rotational movement of the wiper arm in the other direction. The rotational movements turn at a turning position of the wiper arm.

Abstract: A bearing holder comprises a plurality of pawls engaged with an internal surface of the bearing containing part, a plurality of slots arranged in circumferences of the pawls, and bearing-contacting part in contact with an outer periphery of the bearing. It is used for holding the bearing supporting an armature shaft of a motor equipped with reduction gear, for example.