Jidosha Denki Kogyo Kabushiki Kaisha

Nissan Motor Company Limited

Jidosha Denki Kogyo K.k.

Kyoji Kobayashi

Takeo Furuya

Kiyoshi Konishi

Masaru Kato

Atsushi Inagaki

Noboru Kaneko

Yujiro Tsutsui

Koichi Fujisawa

Junichi Sato

Kouichi Suzuki

Yasuo Ohashi

Toshio Iwaoka

Fumio Nakajima

Yoshinori Nagamine

Yuji Hirohama

Hayao Itoh

Yoshimi Takano

Takanori Saito

Ekiro Hidaka

A small-sized electric motor includes a yoke formed by bending a rectangular metallic plate into an oval shaped tube having a pair of flat parts and a pair of arcuate parts and joining opposite ends of the metallic plate. An end cap is secured on one end of the yoke and a gear casing is secured to the yoke by a tab formed on another end of the yoke. The joining faces of the metallic plate are located away from the center line of an arcuate part of the yoke and jagged faces are formed on the joining faces. The jagged faces are composed only of curved parts and straight parts having inclinations to the axis of the yoke. The end cap is secured by crimping a bendable tab formed on one end of the yoke by burring. A tab for securing the yoke to a gear box is formed by bending a tongue provided on the metallic plate together with notches on both sides of the tongue.

Sheet metal casing for a small electric motor

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.

Constant-speed cruising control apparatus for vehicles

A seat belt apparatus for use in the restraining of a person on a seat of the vehicle includes a take-up mechanism, a webbing strap having one end secured to the take-up mechanism windably and the other end secured to the vehicle body by pulling it out from the take-up mechanism, a webbing detection mechanism provided near the take-up mechanism for detecting the pulled-out amount of the webbing strap and a restraining mechanism for restraining the movement of the webbing strap. The restraining mechanism may be released for a given time by a switch or the sensing of a shock. A webbing strap fold-up mechanism for folding-up the webbing strap in the direction of the length is provided and acts upon the sensing of shock so as to fold up excess strap when the webbing strap detecting mechanism detects that the webbing strap is pulled-out an amount more than a predetermined amount.

Seat belt apparatus

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.

Wiper arm

An automatic car-speed controller is disclosed, which is provided with an actuator having a solenoid clutch comprising a sector wheel rotatable around a shaft and an output pulley rotatable independently from the sector wheel around the shaft coaxially. The sector wheel consists of a gear portion, a solenoid, and a sector arm alienating the solenoid from a rotational center thereof. The output pulley consists of a pulley portion attached with a throttle cable nearly to the rotational center, a magnetic body attracted by the solenoid of the sector wheel, and an arm connecting the magnetic body with the pulley portion.

Actuator and an automatic car-speed controller

A system and method for automatically controlling a vehicle speed to a desired cruising speed in which after a vehicular engine is set in an acceleration state for the vehicle through an actuator under an acceleration control of the vehicle speed in response to a command operation of an acceleration switch, the vehicular engine is set so that the vehicle speed is reduced and arrives at a set cruising speed at a time of a reset of the command operation of the acceleration switch. At this time, in the vehicle speed controlling system and method, a duration in which the vehicle speed is one abruptly reduced is calculated on the basis of a control duration for which the vehicle speed is in the acceleration state under the acceleration control so that the vehicle speed is smoothly reduced and reaches the set cruising speed. The acceleration state of the vehicle speed is such that the actuator actuates a throttle valve to angularly displace toward an open direction so that the rate of increase in the vehicle speed with respect to time (i.e., acceleration value) is increased to match with a predetermined rate.

System and method for automatically controlling a vehicle speed to a

A reduction gearing device for automobile accessory motor comprises first and second worms coaxially formed on a worm shaft in different thread directions, a pair of first and second intermediate gears each composed of two gear members, with one gear of each pair being engaged with a respective worm, and a common output gear engaged with the other gear member of each of the intermediate gears. The engagement of one intermediate gear with the first worm is in phase with the engagement of the other intermediate gear with the second worm while the engagement of one intermediate gear with the common output gear is in phase with the engagement of the other intermediate gear with the common output gear.

Reduction gearing device for an automobile accessory motor

A wiper control system controls an automotive wiper in accordance with rain conditions. Rain conditions are detected by means of a rain sensor which has a vibrator adapted to vibrate at an amplitude corresponding to rain conditions. The vibrator is adapted to produce a sensor signal having an amplitude corresponding to its vibration. The vibrator vibrates at a resonant frequency outside of the audible frequency range and has adequate sensitivity for detecting rain conditions.

Vibration noise suppressive rain sensor for a wiper control system

A reduction motor shaft used, for example, in a wiper motor is disclosed, which is provided with screw type double worms constituting a reduction mechanism part. In this reduction motor shaft, right-handed and left-handed screw type worms are coaxially formed in one end side of the shaft as plural-thread screws at a linked state of tooth profiles of both worms, and further an annular protrusion is formed in a threading boundary between the worms.

Reduction motor shaft provided with screw type double

A rain sensor for an automotive wiper control system detects rain conditions to produce a rain condition indicative signal. The rain sensor includes a vibrator, the outer surface of which is exposed to rain drops and which vibrates or oscillates at an amplitude and frequency corresponding to the energy applied by rain drops. The rain sensor is adapted to produce the rain condition indicative signals corresponding to the vibration amplitude of the vibrator. The vibrator is resiliently suspended within a sensor casing by means of a resilient member which is adapted to allow vibration of the vibrator as rain drops hit the outer surface and to absorb vibrational noises transmitted through the vehicle body. The resilent member simultaneously serves to waterproof the components within the sensor casing.

Rain sensor in an automatic wiper drive control system for an automotive

In an automotive windshield wiper control system, a rain sensor provides a rain condition-indicative signal useful in controlling the wiper in its intermittent operation mode. That signal is integrated to yield a value representing rain accumulation on the windshield, and when the integrated value exceeds a given threshold, the wiper is reciprocated once to clear the windshield. In order to prevent arhythmic wiper operation, the signal integrator is disabled during wiper operation so that the integrated value will not approach the threshold too soon after or even before the end of the preceding wiper operation cycle.

Rain condition dependent wiper control system for an automotive vehicle

A device for detecting a revolution number of a connection shaft is disclosed. The device comprises a permanent magnet body attached to the connection shaft and a pulse generating means disposed apart from the magnet body, wherein the pulse generating means is arranged in a housing isolated from a casing for the connection shaft.

Revolution detecting device

An automatic speed control device for a vehicle or a stationary generator for emergency use is disclosed. The device comprises a speed signal detector means for generating speed pulses of a frequency proportional to a speed, a constant time generator means connected to the detector, a speed pulse counter means for counting the speed pulses received within the constant time, an auxiliary pulse generator means for generating auxiliary pulses of a constant period from the leading edge of each speed pulse, an auxiliary pulse counter means for counting from the leading edge of each speed pulse auxiliary pulse of constant period sufficiently smaller than a period of the speed pulse at the highest speed, an actual speed computing means connected to both counters for computing an actual speed from the counted result of speed pulses at the end of the constant time and the counted result of auxiliary pulse, a setting speed memory means connected to the actual speed computing means, a speed comparator means for comparing the actual speed and the setting thereby to generate an output signal corresponding to the difference thereof, and an electromechanical transducer means connected to receive the output signal of actual speed computing means for driving an adjustable speed mechanism of a prime mover.

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Chigasaki, Japan

Kyoji Kobayashi