JP2002160578A - Protection structure of aiming control section in vehicular lighting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance workability when a vehicular lighting tool is installed to a car body. SOLUTION: The protection structure of an aiming control section in the vehicular lighting tool comprises a reflection mirror mounted slidably to a housing, and an aiming control section 20 to adjust the slide movement of the reflection mirror and an aiming device equipped with a protection cover for the aiming control section. The protection cover has a coating part to coat the slide adjustment part, an engaging part to rotatably install the protection cover, and a connection part to connect both of these parts. The aiming control part 20 comprises an engaging hook 27 to engage the engaging part of the protection cover, a control prevention ribs 25a, 25b to hold and fix the connection part from both sides when the slide adjusting part is covered with the protection cover, and a temporary installation parts 26a, 26b to temporarily fix the protection cover by rotating the protection cover. Thus, the protection structure is easily constituted without using a tool or the like so as to enhance workability and reduce a cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective structure for a headlamp of an automobile, for example, which prevents a user or the like from adjusting an operation section of the aiming apparatus. The present invention relates to a protection structure for making the operation section of the aiming device inaccessible after the optical axis is adjusted by the operation.

[0002]

2. Description of the Related Art Conventionally, a headlamp provided with an aiming device is configured as shown in FIGS. 4 and 5, for example.

In FIG. 4, a headlamp 1 includes a housing 2 attached to a front portion of a vehicle body (not shown) of an automobile, a lens 3 for covering an open front surface of the housing 2, and a light chamber in the housing 2. 4 includes a reflecting mirror 5 having a light source (not shown) therein, and an aiming device 6 disposed on the back of the reflecting mirror 5. Aiming device 6
Has a fulcrum 7 having a spherical surface, and an aiming screw 8 having a head 8a fixed to the housing 2.
By rotating the aiming screw from the operation unit 9 outside the housing, the distance between the housing 2 and the reflecting mirror 5 is adjusted, whereby the reflecting mirror 5 can be tilted, and the optical axis of the headlamp 1 is adjusted. I am adjusting.

In FIG. 5, an operating section 9 of the aiming device 6 includes a fixing section 2a provided on the outer surface of the housing 2, an emig screw head 8a fixed in the fixing section 2a,
Consists of The fixing portion 2a includes a peripheral wall portion 2b surrounding the emig screw head 8a and a tool 90 such as a screwdriver.
And a tool insertion hole 2d. A gear 8b is attached to the head 8a of the aiming screw.
Is attached.

[0005] According to the headlamp 1 having such a configuration, the fulcrum 7 is fixed at the distance between the housing 2 and the reflecting mirror 5 by rotating the aiming screw head 8a using the tool 90. In this state, the reflection mirror can be tilted and the optical axis of the headlamp 1 can be adjusted.

In the meantime, since the vehicle lamp having such a configuration may have a manufacturing error or the like, the optical axis of the headlamp 1 is adjusted so as to satisfy a predetermined light distribution characteristic in a state where the lamp is mounted on the vehicle body. Must be adjustable.
Therefore, the aiming device 6 is provided so as to be adjustable. However, even after the headlamp 1 is attached to the vehicle body and adjusted at the same time, it can be easily adjusted by an automobile user or the like. Therefore, depending on the specification of the destination of the automobile, it is required to provide a protective structure having an incorrosive mechanism that makes it difficult for the automobile user or the like to operate the aiming device 6.

Therefore, it has been proposed to attach a protective cover 10 for covering the operation unit 9 as shown in FIG. 4 as such a protective structure. After attaching the headlamp 1 to the vehicle body and completing the optical axis adjustment on the producer side, the protective cover 10 is fixed to the housing 2 with the mounting screws 11 or the like so that the aiming operation cannot be performed thereafter. Things.

[0008]

However, in the above-described protection structure for the aiming device, the protection cover 10 must be attached while the headlamp is attached to the vehicle body. Generally, there is only a narrow space between the vehicle body and the headlamp 1, and therefore, the work of fixing the protective cover as described above is extremely difficult and time-consuming. Further, since the protective cover 10 and the mounting screws 11 are separate from the headlamp 1, when performing the mounting work on the vehicle body, each part must be prepared separately, and Workability was poor. Therefore, problems such as a decrease in productivity and an increase in cost have occurred.

In view of the above, the present invention provides a protection structure for an aiming operation unit in a vehicle lamp, which can provide a protection structure with a small number of parts, and is excellent in productivity and can reduce costs. It is intended to be.

[0010]

SUMMARY OF THE INVENTION According to a first aspect of the present invention, there is provided a housing mounted on a front portion of a body of an automobile, and a housing mounted on an open inner surface of the housing so as to be tiltable with respect to the housing. The aiming operation part protection structure for a vehicle lamp, comprising: a reflecting mirror provided, an aiming operation part for adjusting the tilt of the reflection mirror, and an aiming device having a protective cover for protecting the aiming operation part. The cover has a covering portion that covers the tilt adjustment portion, an engagement portion that is rotatably mounted, and a connecting portion that connects the two, and the aiming operation portion is configured to cover the tilt adjustment portion with the protective cover. An operation preventing rib for holding and fixing the connecting portion from both sides, and a temporary installation portion for temporarily fixing the protective cover by rotating the protective cover. Characterized by a protective structure of the aiming operation unit, it is achieved.

In the first aspect, since the protective cover is temporarily fixed to the vehicular lamp in a rotatable state, workability at the time of mounting work on a vehicle body or the like is improved, and cost is reduced. Can be done.

According to a second aspect of the present invention, there is provided a protection structure for an aiming operation portion in a vehicle lamp, wherein the aiming operation portion fixes an aiming screw for tilting and adjusting a reflecting mirror and the aiming screw to a housing. Aiming screw fixing portion, the aiming screw fixing portion, the surrounding wall portion surrounding the aiming screw, a guide portion provided with a tool insertion hole formed in the surrounding wall portion, and the protective cover is rotatable. An attachment portion to be attached, the operation preventing rib formed between the attachment portion and the peripheral wall portion, and the temporary installation portion are formed integrally with the housing, and the temporary installation portion mounts the connection portion. A rib that is placed and temporarily fixed. According to the second aspect, since the aiming screw fixing portion is formed integrally with the housing, the cost can be further reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to FIGS. Note that portions having the same structure as a conventional vehicle lamp are denoted by the same reference numerals, and a description thereof is partially omitted.

FIG. 1 shows the configuration of an embodiment of a protection structure for an aiming operation section in a vehicle lamp according to the present invention. FIG. 2 is a perspective view showing the embodiment of the aiming operation unit 20 with the protective cover 30 removed. In the drawing, an aiming operation section 20 includes a housing 2 attached to a front portion of a vehicle body (not shown) of an automobile, an aiming screw fixing section 21 provided on an outer surface of the housing 2, and a rotatable inside the fixing section. , And a protective cover 30 that covers them. FIG. 1 shows a state before the aiming screw head 8a is covered with the protective cover 30, that is, a state before the aiming operation is performed after the head is attached to the vehicle body.

The aiming screw fixing part 21 is
A peripheral wall portion 22 surrounding the aiming screw head 8a and the gear 8b, a guide portion 23 for guiding a tool (not shown) for rotating the aiming screw, and a peripheral wall portion 22 for inserting a tool guided by the guide portion. And a tool insertion hole 24 provided.

The above configuration is substantially the same as that of the conventional vehicular lamp 1 shown in FIG. 4. However, in the aiming device operation section according to the embodiment of the present invention, the aiming operation is further performed by the above-described protective cover 30. Operation preventing ribs 25a, 25 for making the aiming screw inoperable so that it cannot be operated when the screw head 8a and the gear 8b are covered.
b and a protective cover 3 for attaching the vehicle lamp to the vehicle body.
And a temporary installation rib 26a, 26b for temporarily fixing the protective cover 0 and an engagement hook 27 for rotatably mounting the protective cover. It is molded into.

As shown in FIG. 3, the protective cover 30 includes a covering portion 31 for covering the head 8a of the aiming screw, an engaging portion 32, and a connecting portion 33.
The engaging portion 32 has an engaging hole 34 for engaging with the engaging hook 27. Note that the protective cover 30 is also formed of, for example, PP resin or the like, and has appropriate elasticity.

When the vehicle lamp provided with the aiming operation section protection structure of the embodiment of the present invention is mounted on the vehicle body, the engagement hole 34 of the protection cover 30 is hooked on the engagement hook 27,
Further, as shown in FIG. 1, by rotating about the engagement hook 27, the temporary installation ribs 26a, 26
The connecting portion 33 is temporarily fixed as being located between 6b. With the protection cover 30 temporarily fixed, the vehicle lamp is mounted on the vehicle body, and after performing the aiming operation, the protection cover 30 is attached to the engagement hook 27 as the rotation center and the operation preventing rib 25a below the engagement hook 27. , 25b to cover the aiming screw head 8a.

Here, the aiming screw fixing portion 21
Will be described with reference to FIG. The peripheral wall 22
Is formed on a wall surface having substantially the same height as the aiming screw head 8a and the gear 8b, and is configured to surround the periphery of the protective cover 30 so that the protective cover 30 can be fitted therein. On the inner surface of the wall, a fixing member (not shown) such as a protrusion or a hook is provided to further improve the fitting property with the protective cover 30 so that the protective cover 30 inserted therein cannot be easily removed. Is preferred. Also,
A tool insertion hole 24 is formed in a part of the peripheral wall portion, and an upright wall constituting the guide portion 23 is provided from both side peripheral wall portions of the tool insertion hole 24, and a part of the tip is expanded to be used for a driver or the like. Tools are easier to insert.

The temporary installation ribs 26a and 26b are provided diagonally below the engagement hook 27, and are provided on the lower peripheral wall 22 side.
As shown in FIG. 1, between the temporary installation rib 26a and the second temporary installation rib 26b, the protection cover connecting portion 33 can be temporarily fixed. At this time, the first temporary installation rib 2
The height of the upright wall 6a is smaller than the height of the upright wall of the second temporary installation rib 26b, so that the protective cover 30 rotatably attached to the engaging hook 27 is unlikely to rotate in the opposite direction to the aiming screw 8a. In other words, when rotating from the position covering the head 8a of the aiming screw, etc., it rotates over the first temporarily installed rib 26a, but the second temporarily installed rib 26b is provided with a difference in collision height. ing. Specifically, the difference between the heights of the standing walls may be about 1.5 to 3 mm. Further, it is preferable that the surface of the first temporary installation rib 26a is rounded so that the protection cover connecting portion 33 can easily get over the surface.

The operation preventing ribs 25a and 25b connect the engaging hook 27 and the peripheral wall portion 22 and protrude from the outer surface of the housing 2 so as to surround the connecting portion 33 of the protective cover 30 attached to the engaging hook 27. It is a standing wall. The height of the operation preventing rib is such that the connecting portion 33 is operated by the operation preventing ribs 25a and 25a in a state where the protective cover is fitted to the peripheral wall portion 22.
The height should not be higher than b. This makes it difficult to remove or rotate the protective cover 30 after the fitting. The first operation preventing rib 25a on the first temporary installation rib 26a side is connected to the second operation preventing rib 25a on the opposite side.
When the operation prevention rib is rotated toward the temporary installation ribs 26a and 26b as a standing wall higher than the operation prevention rib 25b, the protection cover 30 is hard to rotate unless it is rotated with a clear intention.

The engaging hook 27 is composed of a pair of hook pieces that can be inserted into the engaging hole 34 of the protective cover 30, and has a hook 27b protruding from the protective cover locking surface 28 and a drop-off prevention formed at the tip. Piece 27a. Hook 27b
The length of the protective cover 30 is such that the protective cover 30 can move in the front-rear direction. When the protective cover 30 is pushed in to fit the peripheral wall 22, the engaging portion 32 contacts the protective cover locking surface 28. It is configured to touch.

In the vehicular lamp provided with the aiming operation section 20 having such a structure, the protective cover 30 is engaged with the engaging hooks 27 before the mounting work on the vehicle body is performed.
Rotatably mounted on the temporary installation ribs 26a,
It is carried into the mounting work place while being temporarily fixed between 26b. Therefore, the protective cover is prevented from falling off during the movement after the vehicle lamp is manufactured. In addition, when the vehicle lamp mounting step is performed, the protective cover, which is a separate member, can be prepared together with the vehicle lamp, so that the setup work is simplified and the workability of assembling the vehicle lamp is improved.

After the work of assembling into the vehicle body, the light distribution is confirmed and the aiming work is performed. After the end of the aiming operation, the protection cover 30 engaged with the engagement hook 27 is fixed to the vehicle body by using the engagement hook 27 as a fulcrum from the installation ribs 26a, 26b to prevent the operation preventing rib 25a. , 25b (rotating from the right to the bottom in the drawing) and then pushing it into the housing, so that the covering portion 31 is fitted into the peripheral wall portion 22 and the aiming screw head 8a, etc. Cover. In addition, since the protection structure can be formed only by the work of turning and pushing,
Workability in a narrow space is significantly improved.

At this time, the engaging portion 32 comes into contact with the protective cover mounting surface 28 of the engaging hook 27, the connecting portion 33 is fitted between the operation preventing ribs 25a and 25b, and the covering portion 31 is inserted into the peripheral wall portion 22. Fitted and fixed. This makes it difficult to remove or rotate the protective cover 30, and an inaccessible mechanism is formed. Therefore, for example, even if a car user or the like attempts to operate the aiming operation unit, the operation cannot be performed, and the adjusted aiming is protected.

An engaging hole 34 provided in the protective cover 30 is provided.
In a state where the protective cover 30 is attached to the locking hook 27 so as to fit to the peripheral wall portion 22, the pair of hook portions 2
As a polygonal shape having a width slightly larger than the width between both ends of 7b, a click feeling is generated when rotated. In the present embodiment, for example, the width between both ends of the hook portion 27b is 4.95 mm, and the width d1 of the fitting hole 34 is 5.
0 mm, and the connecting portion 33 is provided between the temporary installation ribs 26a and 26b.
Is temporarily fixed, and the distance d2 between the engagement hole sides 34a, 34b with which the side surfaces at both ends of the pair of hook portions 27b abut is 5.0 mm.

Although the above-described embodiment is a preferred specific example of the present invention, various technically preferable limitations are given. However, the scope of the present invention is not limited to these embodiments. Absent. For example, the protective cover 30 may be fitted so as to cover not the inside of the peripheral wall but the outside.
Various applications such as providing a hole in place of the engaging hook 27 and providing a projection on the protective cover engaging portion 32 are also included in the present invention.

[0028]

As described above, according to the present invention, the protection structure of the aiming operation section temporarily fixed to the vehicle lamp from the state before the protection cover is attached to the vehicle body, and the protection cover is rotated. The workability when attaching the vehicle lamp to the vehicle body or the like is remarkably improved because the structure is such that the vehicle lamp can be fixed without using a tool such as pushing.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of an embodiment of an aiming operation section of a vehicular lamp according to the present invention.

FIG. 2 is a perspective view showing an aiming screw fixing part of FIG. 1;

FIG. 3 shows the protective cover of FIG. 1 (a) front view,
(B) It is sectional drawing.

FIG. 4 is a cross-sectional view illustrating a vehicular lamp provided with a conventional aiming device protection structure.

FIG. 5 is a schematic perspective view showing an aiming device operation unit of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Head lamp 2 Housing 3 Lens 4 Light room 5 Reflecting mirror 6 Aiming device 7 Support 8 Aiming screw 8a Head 8b Gear 9, 20 Aiming operation part 2a, 21 Aiming screw fixing part 2b, 22 Perimeter wall part 2c, 23 Guide Part 2d, 24 Tool insertion hole 10, 30 Protective cover 25a, 25b Operation prevention rib 26a, 26b Temporarily installed rib 27 Engagement hook 30 Protective cover 31 Cover part 32 Engagement part 33 Connection part 34 Engagement hole 90 Tool

Claims (2)

[Claims] 1. A housing attached to a front part of a vehicle body of an automobile, a reflecting mirror attached to an open inner surface of the housing so as to be tiltable with respect to the housing, and an aiming operation unit for adjusting the tilting of the reflecting mirror. And an aiming device provided with a protective cover that protects the aiming operation unit, and an aiming operation unit protection structure for a vehicle lamp including: a covering unit that covers a tilt adjustment portion;
It has an engaging portion that is rotatably attached, and a connecting portion that connects the two, and the aiming operation portion fixes and fixes the connecting portion from both sides when the tilt adjustment portion is covered with the protective cover. A protection structure for an aiming operation section, comprising: an operation prevention rib; and a temporary installation section for temporarily fixing the protection cover by rotating the protection cover. 2. The aiming operation section comprises: an aiming screw for adjusting the tilt of the reflecting mirror; and an aiming screw fixing section for fixing the aiming screw to the housing. A surrounding wall portion, a guide portion having a tool insertion hole formed in the surrounding wall portion, a mounting portion for rotatably mounting the protective cover, and the operation preventing rib formed between the mounting portion and the peripheral wall portion. And the temporary installation section,
The protection structure for an aiming operation section according to claim 1, wherein the temporary installation section is formed integrally with the housing, and the temporary installation section includes a rib on which the connection section is mounted and temporarily fixed.