摘要:
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.
摘要:
In a vehicular head lamp wherein a synthetic resin reflector having a light source is tiltably supported in a synthetic resin lamp body by an aiming mechanism interposed between the reflector and the lamp body, an elastic engagement strip which projects forwards and has a side surface provided with an engagement concave portion, is formed integrally with an interior of the lamp body, and an engagement convex portion that can engage the engagement concave portion of the lamp body is formed integrally with a back face of the reflector. The engagement convex portion is brought to engage the engagement concave portion so that the engaged engagement convex and concave portions constitute an aiming fulcrum.
摘要:
An automobile headlamp is equipped with a lamp body that can deal with different aiming specifications. An automobile headlamp such that a light source unit in a lamp body is made tiltable vertically and horizontally by an aiming mechanism, and rotatable portions of a vertical and a horizontal aiming screw as members of the aiming mechanism, are provided outside the lamp body, so that these rotatable portions are turned to adjust the light source unit by tilting the light source vertically and horizontally. A cap can be fitted to the rotatable portion of at least the horizontal adjustable aiming screw in order to cover the rotatable portion thereof where horizontal aiming is unnecessary according to specifications applicable to the headlamp. Thus, horizontal aiming is made ineffective by not allowing a rotatable tool to engage with the rotatable portion of the horizontal aiming screw.
摘要:
A self-locking nut fitted into a fitting hole of a reflector with which an aiming screw engages for adjusting an inclination angle of a reflector of a vehicular lamp, the self-locking nut comprising: a nut leading portion having slits extending in radius direction; a flange arranged below said nut leading portion; a fitting portion formed below said flange, said fitting portion having slits extending in radius direction and a pair of legs for fitting into the fitting hole of the reflector, said pair of legs being elastically expandable and having a wedge shape; a shaft hole having an inner surface, said shaft hole passing through the nut leading portion, the flange and the fitting portion in vertical direction; and a threaded portion formed on the inner surface of said shaft hole engageable with the aiming screw, the threaded portion comprising: first grooves extending from said slit of said fitting portion; second grooves positioned perpendicular to said slit of said fitting portion; a divided circumferential portion divided in the circumferential direction by said first and second grooves; and an entire circumferential portion having a circular shape in section, said entire circumferential portion being positioned at said fitting portion, wherein a pitch diameter of said entire circumferential portion being slightly smaller than that of the aiming screw.
摘要:
A reflector with an electric lighting bulb mounted thereto is coupled to a lamp body via a ball-and-socket connection and a vertical and a horizontal aiming screw. Each aiming screw comprises a threaded shank engaged with a nut on the back of the reflector, a journal joined to the threaded shank and rotatably received in a bearing sleeve formed on the lamp body, and a head portion joined to the journal and projecting rearwardly from the bearing sleeve. The aiming screw is formed to include two collars for engaging the bearing sleeve therebetween and so the aiming screw is restrained from axial displacement relative to the sleeve. The diameters of the various parts of the aiming screw and of the bearing sleeve are so determined in relation to one another that, in the assemblage of the headlamp, the aiming screw can be inserted, with its head portion foremost, into and through the bearing sleeve from inside the lamp body, either before or after coupling the aiming screw to the reflector via the nut.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.