JPS60206744A - Optical axis adjusting device for head lamp - Google Patents

Abstract

PURPOSE:To easily adjust an optical axis of a head lamp without reducing an installation space for other equipments, by mounting knobs of thin disc at rear ends of adjusting screws in the vicinity of a back surface of a head lamp body, and forming a plurality of recesses along a circumference of the disc. CONSTITUTION:Adjusting screws 11 and 12 are provided with knobs 15 of thin disc 16 at rear ends thereof in the vicinity of a back surface of a head lamp body 7. Accordingly, the knobs 15 occupies only a thin space along the back surface, and does not largely reduce an installation space for other equipments such as a meter. Further, as the disc 16 is formed with a plurality of recesses 18 along a circumference thereof, the disc 16 may be rotated by engaging a tip of a screwdriver with the recesses 18 in many directions of insertion of the screwdriver. In addition, as a point of action for adjustment is located at a position far away from a screw shaft of a screw 11a, the screw may be operated with a relatively small force to render adjustment of the optical axis easy.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an optical axis adjusting device for a headlamp attached to a vehicle, and particularly to an optical axis adjusting device suitable for a headlamp of a motorcycle.

[Prior art]

Generally, the optical axis adjustment device of a headlamp is made by screwing an adjustment screw into a part of the headlamp body, and rotating the adjustment screw forward and backward using a screwdriver inserted from the axial direction. The tilting state of the light body is changed to adjust its tip axis.

By the way, if the driver is inserted from the front side of the headlamp, the insertion hole becomes conspicuous and spoils the appearance of the vehicle, so some vehicles are designed to insert the driver from the rear side of the headlamp.

However, if the driver is inserted from the rear side of the headlight in this way, the adjustment will not be possible in vehicles such as motorcycles where the rear of the headlight is closely filled with equipment such as meters. Several turning knobs are installed at the rear end of the screw, which reduces the installation space for the above-mentioned equipment, and because of the above-mentioned equipment, it becomes difficult to insert the screwdriver in the axial direction of the adjustment screw, making operation difficult. The problem is that it becomes difficult to do.

[Purpose of the invention]

An object of the present invention is to prevent the adjustment screw knob from narrowing the space for the above-mentioned equipment even in a vehicle in which equipment such as meters is arranged in a densely packed state behind the headlight, and to adjust the adjustment screw. An object of the present invention is to provide an optical axis adjustment device for a headlamp that allows easy adjustment of the optical axis of a headlamp.

[Structure of the invention]

To achieve the above object, the present invention is a headlamp in which an adjustment screw is screwed into a headlamp main body, and the optical axis is adjusted by tilting the main body by forward and reverse rotation of this δ) one-bar screw. , after the adjustment screw θ11. ) is characterized by a thin disc-shaped knob placed close to the back side of the headlamp body, and a plurality of notches provided along the circumferential surface of the disc.

[Embodiments of the invention]

The present invention will be explained below with reference to embodiments shown in the drawings.

In the motorcycle shown in FIG. 1, 1 is sea 1 to . 2 is a handle. A meter 3 is attached to the front of the handle 2 along with a headlamp 4 in the space sandwiched between them, and a cowling 5 is removed to cover the front of these.

As shown in FIGS. 2 to 4, the headlight 4 has a lens 6 attached to the front of a main body 7, and the main body 7 is supported by J stays 8. It is fixed to the cowling 5 via a mounting portion 8a provided in the cowling 5.

In the front view of the mounting stay 8, at the upper right corner position,
A pivot 9 made of a ball joint is provided between the headlamp body 7 and the headlamp 4 to be swingable relative to the mounting stay 8 via the pivot 9. On this pivot 9b, a ball 9a is fixed to the mounting stay 8 side, and a catch 9b is fixed to the headlamp main body 7 side via a bracket 10, and the above-mentioned pivot 9a is rotated to this catch 9b. It is constructed by freely fitting together.

On the other hand, when the mounting stay 8 is viewed from the front, there are adjustment screws 1 at the upper left corner and lower right corner, respectively, between the headlight body 7 and the upper left corner.
1.12 has been established. The image adjustment screws 1112 have the same structure, so to explain one of the adjustment screws 1, a male threaded portion 11a is rotatably supported on the mounting stay 8 side, and a male threaded portion 11a is rotatably supported on the headlight body 7 side. The above male threaded part 11a
A female threaded portion 11b that is screwed together is fixed via a bracket 13, and a spring 14 is stretched between the female threaded portion 11b and the χJ stay 8. The rear αlit of the male screw portion 11a protrudes toward the back side of the stay 8, and a knob 15 for rotational operation is fixed to the protrusion.

This knob 15 is formed with a thin disc-shaped disc part 16 and a hexagonal head 17 having three pairs of widths across flats parallel to each other in the screw axis direction, and the peripheral surface of the disc part 16 is multiple notches 1
8 is formed.

When the adjusting screw 11 is adjusted, the headlamp main body 7 rotates in the front-rear direction about the pivot 9, and this tilting change allows the optical axis of the headlamp 4 to be changed upward. Further, when the adjusting screw 12 is adjusted, the headlamp main body 7 is tilted left and right about the pivot point 9, and the optical axis of the headlamp 4 can be changed in the left and right directions by this change in tilt.

In the optical axis adjustment device described above, the adjustment screws 11゜12j&e
The MA knob 15 is a thin disc 16 and is installed close to the back side of the headlamp body 7, so that the knob 1
5 only occupies a thin space along the back side,
It does not significantly reduce the space for other equipment such as the meter 3.

Further, since the disc 16 is provided with a large number of notches 18 along its circumferential surface, the disc 16 can be rotated by hooking the tip of the driver to these notches 18, and the driver The insertion direction can be operated in any state with respect to the screw axis direction of the male screw lla. Moreover, by providing the notch 18 on the circumferential surface of the disc 15, the point of force application can be located far from the screw shaft of the male screw Ila, so the screw can be rotated with a relatively small operating force. can be operated dynamically.

Therefore, in the above-mentioned optical axis adjustment device, even if the space behind the headlight 4 is densely packed with equipment such as the meter 3, the above-mentioned driver for operation can be inserted into the disc by selecting an arbitrary space where it can be easily inserted. 16, the optical axis adjustment operation is extremely easy.

Further, as in the above embodiment, if the hexagonal head 17 having the width across flats attached to the disc 16 is rotated using a spanner, the spanner can also be rotated in any direction intersecting the screw axis. Since it can be inserted and operated from the front, the degree of freedom in operation can be further increased.

[The fruit of invention]

As described above, the optical axis adjustment device of the present invention is a headlamp in which an adjustment screw is screwed into a headlamp main body, and the optical axis is adjusted by tilting the main body by forward and reverse rotation of the adjustment screw. In this case, a thin disc-shaped knob is attached to the rear end of the adjustment screw in close proximity to the back side of the headlamp body, and a plurality of notches are provided along the circular surface of the disc, so that, Even if other equipment is placed behind the headlamp in a close-packed state, the above-mentioned operating knob only occupies a thin space along the back of the headlamp body, and does not interfere with the operation of other equipment. There is no need to narrow down the installation space. In addition, since the rotation of the screw can be performed using the notch on the circumferential surface of the disc, it can be operated by inserting the operating driver into the screw shaft from any direction, making it easy to adjust the optical axis. can do.

[Brief explanation of the drawing]

Fig. 1 is a side view of a motorcycle equipped with a headlamp optical axis adjustment device according to the present invention, Fig. 2 is a side view showing a main part of the headlamp section of the motorcycle in cross section, and Fig. 3 4 is a front view of the same headlamp portion, and FIG. 4 is a view taken in the direction of the ■ arrow in FIG. 2. 4... Headlight, 7... Body, 11.12...
Adjustment screw, Ila...male thread part, llb...female thread part, 15...knob, 16...yen (reverse, 8...notch. Agent: Patent Attorney Nobuo Ogawa - Patent Attorney Ken Noguchi, Patent Attorney Kazuhiko Saishita

Claims (1)

[Claims] In a headlamp in which an adjustment screw is screwed into the headlamp body, and the optical axis is adjusted by tilting the main body by forward and reverse rotation of the adjustment screw, there is a screw on the rear end of the adjustment screw of the headlamp body. An optical axis adjustment device for a headlamp, characterized in that a thin disc-shaped knob is disposed close to the back side, and a plurality of notches are provided along the circumferential surface of the disc.