Koito Manufacturing Company, Ltd.

Koito Seisakusho Co., Ltd.

Hideharu Mochizuki

Katutada Shirai

Hironori Tsukamoto

Hiroyuki Makita

Osamu Sato

Akira Saijo

Hidehiko Nagasawa

Kenji Miyazawa

Junji Toki

Katsutada Shirai

Fusakiyo Matsune

Yasushi Ohtuska

A headlight for a motor vehicle incorporation devices for measuring the amount of deviation of the beam of light produced thereby from the desired axis. The first deviation measuring device, which is used for measuring the amount of deviation of the beam in the horizontal direction, includes a calibrated rod extending between either the reflector and the headlight body, in the case of a movable reflector type headlight, or between the vehicle body and the headlight body, in the case of a movable unit type headlight. The second deviation measuring device, which is used for measuring the amount of deviation in the vertical direction, includes a level secured to the reflector or headlight body.

Motor vehicle headight including device for measuring deviation and

Motor vehicle headlight including device for measuring deviation and

A vehicular headlamp assembly with a tilt measuring device of small height, which is difficult to damage, requires a decreased number of parts, and is easy to assemble. The tilt measuring device is interposed between a protruding portion of a horizontal aiming screw protruding rearward of a reference member and the reference member. The tilt measuring device includes a fixed holder fixed to the reference member and covering the protruding portion of the horizontal aiming screw protruding rearward of the reference member, an elongated groove being formed in said fixed holder extending parallel to the horizontal aiming screw. A slidable nut member is received in the fixed holder in such a manner as to be longitudinally slidable relative to the fixed holder. The nut member threadedly engages the protruding portion of the horizontal aiming screw. A portion of the nut member is exposed through the elongated groove of the fixed holder. A scale cooperates with the portion of the nut member exposed through the elongated groove for indicating the amount of displacement of the nut member relative to the fixed holder.

Vehicular headlamp assembly

An aiming level device for a motor vehicle headlamp which has a short longitudinal length, requires a small number of components, and is simple to assemble. The inventive aiming level device includes a body member or base, a bubble vial supporting frame pivotable with respect to the body member, and a zero-point adjusting screw for holding a sideward extending part of the supporting frame. The bubble vial supporting frame, which is formed by cutting and bending a single thin metal plate, holds the bubble vial with parts continuously formed at a side region of the front-rear extending region of the frame to support the bubble vial at front and rear portions thereof, and the front and rear end portions of the front-rear extending region are held by the zero-point adjusting screw so that it is adjustable upward and downward by rotating the screw.

Aiming level device for motor vehicle headlamp

A headlight for a motor vehicle incorporation devices for measuring the amount of deviation of the beam of light produced thereby from the desired axis. The first deviation measuring device, which is used for measuring the amount of deviation of the beam in the horizontal direction, includes calibrated rod extending between either the reflector and the headlight body, in the case of a movable reflector type headlight, or between the vehicle body and the headlight body, in the case of a movable unit type headlight. The second deviation measuring device, which is used for measuring the amount of deviation in the vertical direction, includes a level secured to the reflector or headlight body.

A headlight for a motor vehicle having a level for adjusting the direction of light emission from the headlight in the vertical direction in which the quantities of heat transmitted to the respective regions of the casing of the level which face the bubble vial of the level are made substantially equal to each other, even if the temperature around the level changes due to the lighting or extinction of the bulb of the headlight or the like, so that the accuracy of the measurement performed with the level is maintained despite changes in the temperature around the level.

Headlight for motor vehicle

An automobile headlamp which indicates the inclination of the tilting member of the headlamp (the reflector in a movable-reflector type headlamp and the lamp body and reflector unit in a movable-unit type headlamp) in relation to the base member (the lamp body in a movable-reflector type headlamp and the lamp housing in a movable-unit type headlamp) in terms of a change on the scale on an inclination measuring device installed between an aiming screw and the base member. The inclination measuring device includes a guide member supported on the base member and extending approximately in parallel with a protruding portion of the rightward-leftward direction aiming screw. A sliding member is threadedly engaged with the protruding portion of aiming screw such that the sliding member slides relative to the guide member as the aiming screw is rotated. A linear scale formed on the guide member indicating an amount of relative displacement between the guide member and a reference mark on the sliding member. If desired, a similar inclination measuring device can be provided on the upward-downward direction aiming screw to indicate the amount of inclination of the tilting member in the upward-downward direction.

Headlamp for automobiles

An automobile headlamp wherein a level for measuring the tilt of the illumination angle of the headlamp in the up/down direction is attached to a horizontally extending portion of a socket fixture attached in a bulb insertion hole of a tiltable reflector or lamp body so as to extend toward the back of the lamp. The conventionally required level-mounting space on the upper portion of the headlamp is therefor not required, and hence the height of lamp in the up/down direction can be reduced and the headlamp made thin.

Automobile headlamp

A motor vehicle headlamp provided with a leveling gauge for determining whether or not the angle of irradiation of the light beam emitted by the headlamp is properly oriented in upward and downward directions which permits easy adjustment of the angle of irradiation of the headlamp beam. In the case of a movable reflector type headlamp, the headlamp is provided with a leveling gauge for measuring the amount of inclination of the irradiating angle of the headlamp in the upward and downward directions having a casing mounted on the upper wall area of the reflector in the front part of the headlamp unit in such a manner as to permit observation thereof through the exterior wall of the headlamp lens. One end part of the cover is supported elastically and held securely with an indented lance coupler formed in the juncture with the casing, while the other end part of the cover is held securely with a vertical screw threadedly engaged in the casing and is also supported elastically with a spring member installed between the cover and the casing.

Headlamp for motor vehicles

The vehicular lamp assembly housing of the present invention is integrally formed of a synthetic resin, and in a plane shape thereof there is constituted an annular structure having a through hole for insertion therein of the rear end portion of a vehicular lamp assembly and at least a portion thereof is retracted in the depth direction to form a three-dimensional curved surface. The inner and outer peripheral portions of the annular structure are respectively formed with inner and outer peripheral edges bent backwards approximately perpendicularly from the plane portion of the annular structure. Further, between the said inner and outer peripheral edges there is formed an annular or generally annular, continuous reinforcing rib, and also formed a large number of connecting ribs at suitable intervals in a crossing relation to the reinforcing rib.

Housing for vehicular lamp assembly

A mounting device for mounting a replaceable lamp assembly having a flanged plug portion on a reflector enclosure. A generally tubular mounting tube is integrally projecting rearwards of the enclosure for receiving the lamp assembly and has a plurality of radially outwardly extending and circumferentially spaced projections on the rear end. An annular retaining ring having a radially inwardly extending retaining rim for abutting with the rear surface of a flange of the flanged plug portion of the lamp assembly, and a plurality of circumferentially spaced and radially inwardly projecting engaging rims to engage with the front surface of the projections on the mounting tube when the retaining ring is fitted on the mounting tube from the rear end and is rotated relative to the mounting tube.

Mounting device for replaceable lamp assembly on reflector enclosure

A lamp socket assembly for an automotive headlamp, wherein a mount is formed at the back of the headlamp reflector. A socket fixture is screwed to the reflector at a rear surface of the lamp. The mount has a plurality of partial circumferential depressions. The socket fixture has corresponding cuts about its central hole. However, the cuts extend over only a portion of the depressions. A lamp has an integral socket with a focal point plate having a plurality of radially extending tongues. The tongues can be inserted through the cuts into the depressions and be engaged therein. In a dual lamp unit, one of the depressions of the mount for the auxiliary lamp can have a protrusion not present in the main lamp. The tongues for the main and auxiliary lamp sockets differ so that the main lamp socket cannot be engaged with the mount for the auxiliary lamp.

Growing community of inventors

Shizuoka, Japan

Hideharu Mochizuki