JPS6321043Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a vehicle lamp.

Conventionally, in this type of lamp, the reflector provided inside the housing has reflector stays b, b' welded to the back of reflector a, and aiming bolts attached to housing c, as shown in FIG. d and joint pin e through a nylon nut f and a nylon holder g, respectively, so that the angle can be changed and the optical axis can be adjusted.

However, in the conventional system described above, two types of supports with different shapes are used to connect the aiming bolt and the joint pin to the reflector, namely, a nylon nut and a nylon holder. Because at least two types of reflector stays are required due to differences in the mounting holes of However, the nylon nut was installed by sliding it into the mounting hole, and the nylon holder was inserted into the mounting hole and rotated to lock and install, making the reflector installation work complicated.

The present invention was made in consideration of the above-mentioned conventional drawbacks, and is a vehicle lamp in which a reflector in a housing is supported by a joint pin and an aiming bolt via a support to enable adjustment of the optical axis. In this, the support has a female screw part on the same axis into which the aiming bolt is screwed and a receiving part into which the joint pin is rotatably fitted so as to be shared by the aiming bolt and the joint pin,
The outer periphery has a fitting groove with a substantially V-shaped cross section and a fitting groove with a substantially V-shaped cross section into which the peripheral edge of the mounting hole of the reflector can fit, and the reflector is fitted into the fitting groove with a substantially V-shaped cross section. The aiming bolt and the reflector are connected through a support fitting that fits into the mounting hole, and the joint pin and the reflector are connected through a support fitting that fits the mounting hole of the reflector into a fitting groove having a roughly shaped cross section. Because they are connected, the purpose is to reduce the number of parts involved in supporting the reflector and to streamline the work of attaching the reflector.

Next, the present invention will be explained in detail based on an embodiment shown in FIGS. 2 to 4.

Aiming bolts 2 are attached to the upper left and lower right (sections A and C in the figure) of the rear surface of the housing 1, a joint pin 3 is attached to the upper right (section B in the figure), and the reflector 4 is attached to the fulcrum. The angle can be changed at one point and two movable points. As shown in FIG. 3, the aiming bolt 2 is fixed to the housing 1 by a nylon bush h and washers i and j. The joint pin 3 is fixed to the housing 1 by screwing into a mounting hole k provided on the rear surface.

Reference numeral 5 denotes a support device, in which a female screw portion 50 into which the aiming bolt 2 is screwed and a receiving portion 51 into which the spherical head 30 of the joint pin 3 is rotatably fitted are provided on the same axis. It is commonly used by the aiming bolt 2 and the joint pin 3, and the outer periphery corresponding to the female threaded portion 50 has a cross section of approximately
A fitting groove 52 having an E555 shape and a fitting groove 53 having a substantially V-shaped cross section are provided. Then, the support 5 with the receiving part 51 facing the rear side of the housing 1 is pushed into the mounting hole 40 of the reflector 4 which is drilled corresponding to the joint pin 3, and the fitting groove 52 is fitted to the periphery of the mounting hole 40. and fix the support 5 to the reflector 4 by bringing the tongue piece 54 protruding laterally from between the fitting groove 52 and the fitting groove 53 into close contact with the reflector 4, and attaching the joint pin 3 to this receiving part 51.
By fitting the head 30 of the joint pin 3 and the support 5 together, a pivot joint is formed. In addition, the support 5 is pushed into the mounting hole 41 drilled corresponding to the aiming bolt 2 in an inverted state, contrary to the case in which the joint pin is fitted, and the periphery of the mounting hole 41 is fitted into the fitting groove 53. Then, the fitting groove 53 widens to allow the support 5 to tilt relative to the reflector 4, and the aiming bolt 2 is screwed into the female threaded portion 50, and by adjusting the screwing of the aiming bolt 2, the reflector 4 can be moved. As a result, when the aiming bolt 2 is screwed and adjusted, the head 30 of the joint pin 3 serves as a fulcrum and the reflector 4 is tilted, thereby making it possible to adjust the optical axis. Each of the fitting grooves 52 and 53 is provided with a locking protrusion, and the locking protrusion is fitted into a key groove provided in the mounting holes 40 and 41 to prevent the support 5 from rotating. .

In addition, multiple reflector stays formed in the same shape and size are welded to the back of the reflector in correspondence with aiming bolts and joint pins, and supports are fitted into the mounting holes drilled in each reflector. The reflector stay may be connected to the mixing bolt and the joint pin.

Therefore, according to the present invention, the support has a female screw portion into which the aiming bolt is screwed, and a receiving portion into which the joint pin is rotatably fitted, so that the support is commonly used for the aiming bolt and the joint pin. on the same axis, and the outer periphery has a fitting groove with a roughly V-shaped cross section into which the periphery of the mounting hole of the reflector can fit, and a fitting groove with a roughly V-shaped cross section.
It has an E555-shaped fitting groove, and the aiming bolt and reflector are connected through the support, and the joint pin and the reflector are respectively connected, so that the support and the joint pin into which the aiming bolt is screwed are fitted. The matching support has the same shape, and the reflector mounting hole into which the support is inserted has the same shape, reducing the number of types of reflector support parts and reducing the production cost of support parts. The mounting method is also the same, and it has excellent practical effects, such as streamlining the work of installing the reflector and, by extension, the manufacturing work of the lamp.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a conventional example, FIG. 2 is a front view of the housing of the vehicle lamp according to the present invention, and FIG. 3 is an explanatory diagram showing the mounting state of the aiming bolt in the vehicle lamp according to the present invention. FIG. 4 is an explanatory diagram showing how the joint pin is attached to the vehicle lamp. 1...Housing, 2...Aiming bolt,
3...Joint pin, 30...Head, 4...Reflector, 5...Support, 50...Female screw part,
51... Receiving part.

Claims (1)

[Scope of utility model registration request] In a vehicle lamp in which a reflector in a housing is supported by a joint pin and an aiming bolt via a support to enable optical axis adjustment, the support is shared by the aiming bolt and the joint pin. It has a female screw part into which the aiming bolt is screwed and a receiving part into which the joint pin is rotatably fitted on the same axis, and the outer periphery has a roughly V-shaped cross section into which the periphery of the mounting hole of the reflector can fit. The aiming bolt and the reflector are connected to each other through a support having a fitting groove having a substantially V-shaped cross section and a fitting hole of the reflector fitted into the fitting groove having a substantially V-shaped cross section. A vehicular lamp characterized in that a joint pin and a reflector are connected via a support in which a mounting hole of the reflector is fitted into a fitting groove having a substantially shaped cross section.