JPH0439802A - Lighting tool for vehicle - Google Patents

Abstract

PURPOSE:To use a material suitable for a purpose, and to widen the range of choice of the material for a lamp tool body by forming the lamp tool body out of a first body part formed in such a way that a reflecting surface part and a bulkhead are integrated with each other with a synthetic resin, and of a second body part which serves as an outer shell for storing the first body part. CONSTITUTION:A lamp tool body 2 is composed of a first body part 3 formed in such a way that a reflecting surface part 5 and bulkheads 4, 13, 14 are integrated with each other with a synthetic resin, and of a second body part 18 that serves as an outer shell for storing the first body part 3. Since there is no wall body extended to and for in the reverse side of the bulkhead of the reflecting surface body 5, the work process such as reflection paint or metal deposition on the reflecting surface is facilitated, while a paint and a depositing film are adhered to the surface well. Parts having a part for which weatherproof or mechanical strength are required because of the exposure to the outside air, and a part for which profile irregularity is required as for a reflecting surface, even though the weatherproof is not required because of no exposure to the outside air, are formed separately. The material for each purpose can thus be used, and the range of choice of the material for the lamp tool body 2 is thus widened.

Description

DETAILED DESCRIPTION OF THE INVENTION The vehicle lamp of the present invention will be described in detail according to the following items.

A. Industrial field of application B1 Overview of the invention C5 Prior art [Figure 5 C D Problem to be solved by the invention [Figure 5 C E Means for solving the problem Figure 4] G. Effects of the invention (A. Field of industrial application) The present invention relates to a novel vehicular lamp. Specifically, in a vehicle lamp, the front surface of the lamp body is covered with a lens and has two or more lamp chambers each equipped with a reflective surface and a light bulb, and each lamp chamber is partitioned by a partition wall. The object of the present invention is to provide a new vehicular lamp in which secondary processing of the lamp body can be easily carried out and the scope for selecting materials for the lamp body is expanded.

(B. Summary of the Invention) The vehicular lamp of the present invention includes a lamp body including a first body portion in which a reflective surface portion and a partition wall are integrally formed of synthetic resin.
Since the first body part is configured with a second body part forming an outer shell in which the first body part is housed, only a partition wall is attached to the reflective surface part, making it easy to form a reflective surface by reflective coating or metal vapor deposition. In addition, since the materials of the first body part and the second body part can be changed, for example, a material that can easily achieve surface accuracy can be used for the first body part, and an inexpensive material can be used for the 342 body part. This expands the scope for material selection, such as the use of materials with excellent weather resistance.

(C, Prior Art) [Figure 5] Having two or more light chambers each equipped with a reflective surface and a light bulb,
For example, there is a vehicle lamp shown in FIG. 5, in which the front surface of the lamp body is covered with a lens and each lamp chamber is partitioned by a partition wall.

A is a vehicular lamp, for example, a combination lamp for an automobile.

b is a lamp body, which is formed by molding a synthetic resin.

Light body b has two upper and lower light chambers c and c" with an open front.
The inner surfaces of the lamp chambers C and e' are reflective surfaces d and d'.
It is said that

The lower wall e of the upper lamp chamber C and the upper wall e' of the lower lamp chamber C'
are located at slight intervals vertically, and these walls e
, e' are connected to each other by a connecting wall f at substantially intermediate positions in the front-rear direction, thereby forming two lamp chambers C and e' integrally.

The wall e%e' serves as a partition between the two lamps IC, C, and a fitting groove g opening forward is formed at its front end.

h is the lens part i, i' that covers the front surface of the multi-light IC, C'.
is an integrally formed lens, which is attached to the lamp body b, and a protrusion j protruding from the inner surface between the two lens parts i and i' is attached to the above-mentioned fitting of the lamp body b. It is fitted into the matching groove 8.

Note that k and ni' are light bulbs placed separately in each of the light chambers c and c''.

(D. Problem to be Solved by the Invention) [Figure 5] By the way, in the above-mentioned conventional vehicle lamp a, the depth of each light chamber c, c' is large, and its reflective surfaces d, d' are Because it is located in a very deep position, it is difficult to apply reflective paint or metal vapor deposition to the reflective surfaces d, d'', and the adhesion of paint and vapor deposited films is poor. The problem is that it's not good.

In addition, the reflective surfaces d and d' of the lamp body b need to have good surface precision, and the outer surface needs to have excellent weather resistance and mechanical strength. Although the characteristics of the required materials are different, in the conventional vehicle lamp a mentioned above, the lamp body b is molded as a single member, so it is necessary to use a material that satisfies one of the requirements. and ignore the other's request, or
Alternatively, both sides had to compromise on the material and both sides had to accept some level of inadequacy.

In addition, the space 1 between the connecting wall f and the rear walls e and e' has a small vertical width and a long longitudinal shape, and the strength of the part located in this part 1 of the molding die is weak. It also has the problem of being easily damaged.

(E. Means for Solving the Problems) In order to solve the above problems, the vehicle lamp of the present invention has the following features:
The lamp body is composed of a first body part in which a reflective surface part and a partition wall are integrally formed of synthetic resin, and a second body part forming an outer shell in which the first body part is housed. It is.

Therefore, in the vehicle lamp of the present invention, since there is no wall extending in the front-rear direction on the side opposite to the bulkhead of the reflective surface, it is easy to perform work such as reflective painting or metal vapor deposition on the reflective surface, and The film also adheres well.

In addition, there are parts that are exposed to the outside air and therefore require weather resistance and mechanical strength, and parts that are not exposed to the outside air and therefore do not require weather resistance but require surface precision such as reflective surfaces. Since the lamps are molded as separate members, it is possible to use materials suitable for each purpose, greatly expanding the range of material selection for the lamp body.

(F. Embodiment) [FIGS. 1 to 4] Details of the vehicle lamp of the present invention will be described below according to the illustrated embodiment.

The illustrated embodiment is one in which the present invention is applied to a rear combination lamp 1 for an automobile.

Reference numeral 2 denotes a lamp body, which is composed of a first body part and a second body part.

Reference numeral 3 designates a first body portion, which is formed by molding a synthetic resin.

Reference numeral 4 denotes a main bulkhead, which is plate-shaped and extends approximately horizontally, its front edge is shaped to follow the front surface of the lamp body 2, and its rear edge is approximately parabolic except for one end; One end portion extends straight diagonally rearward from one end of the parabolic portion.

Reference numeral 5 denotes an upper reflective surface section, which extends in the form of a band from side to side when viewed from the front, and the front surface 6, excluding one end thereof, is a reflective surface and has a shape that forms part of a paraboloid of revolution. And the reflective surface part 5
One end portion 7 is formed into a substantially flat plate shape extending diagonally rearward from one end of the remaining portion.

Further, a circular insertion hole 8 is formed approximately at the center of the reflective surface portion 5, and engagement notches 8a, 8a are formed in the insertion hole 8.

The lower edge of the reflective surface portion 5 is integrally connected to the rear edge of the main partition wall 4 .

Reference numeral 9 denotes a lower reflective surface section, which extends in the form of a band from side to side when viewed from the front, and the front surface 10, excluding one end thereof, is a reflective surface and has a shape that forms part of a paraboloid of revolution. One end portion 11 of the reflective surface portion 9 is formed into a substantially flat plate shape extending diagonally rearward from one end of the remaining portion.

Furthermore, a circular insertion hole 12 is formed approximately in the center of the reflective surface portion 9 .

Reference numeral 13 denotes a rear partial partition wall, which is integrally formed with a plate-shaped main portion 13a extending substantially horizontally and a connecting portion 13b projecting upward from the front edge of the raw portion 13a.

The rear edge of the main portion 13a has approximately the same shape as the rear edge of the main partition wall 4, and the front edge is formed approximately parallel to the rear edge.

The rear partial bulkhead 13 is connected to its connecting portion 13.
The upper edge of b is integrally connected to the lower surface of the main partition wall 4 at a position approximately midway between the center and the rear end in the front-rear direction, and the upper edge of the main partition wall 4 is
The rear edge is positioned slightly forward of the rear edge of the main partition wall 4.

The upper edge of the lower reflective surface portion 9 is integrally connected to the rear edge of the main portion 13a of the rear partition wall 13.

Reference numeral 14 denotes a front partial partition wall, which is integrally formed with a plate-shaped main part 14a extending substantially horizontally and a connecting part 14b projecting upward from the rear edge of the main part 14a.

The front edge of the main portion 14a has approximately the same shape as the front edge of the main partition wall 4, and the rear edge is formed approximately parallel to the front edge.

And, such a front partial partition wall 14 has a connecting portion 14 thereof.
The upper edge of the main part 14a is connected to a position near the front end of the lower surface of the main partition wall 4, and the front edge of the main part 14a is positioned slightly forward of the front edge of the main partition wall 4. Partition wall 14
and the front end of the main partition wall 4.
5 is formed.

16.16 is the other end of each reflective surface part 5.9 and the insertion hole 8.12
It is a retaining piece that integrally protrudes rearward from the part between the two, and the rear end has an engaging claw 16a that protrudes toward the other end.
, 16a are provided.

Reference numeral 17.17 denotes a mounting boss that integrally projects rearward from one end of the paraboloid of revolution of the reflecting surface 5.9, and these mounting bosses 17.17 have a pre-tapping hole 17a opened at the rear end surface. , 17a are formed.

The first body portion 3 as described above is formed by molding a synthetic resin, and the connecting portion 13 of the rear partial partition wall 13
b and the connecting portion 14b of the front partial bulkhead 14 becomes an undercut portion, and a slide mold is required to mold this portion. The length of the narrow part between the partial partition walls 13 is shortened, and the strength of the part of the mold located in this part is not weakened.

Reference numeral 18 denotes a second body portion forming an outer shell portion of the lamp body 2, and this body portion is also formed by molding of synthetic resin.

The second body portion 18 includes a rear wall portion 19 shaped approximately along the rear surface of the body portion 3 of *X, and upper and lower and left and right side wall portions 2.
0.21.22.23 are integrally formed.

24.24 is an engagement hole formed in the rear wall portion 19 at a position corresponding to the engagement piece 16.16 of the first body portion 3;
．． Reference numeral 25 denotes a tapped pilot hole 1 opened in the rear end surface of the mounting boss 17 and 17 of the first body part 3 in the rear wall part 19.
This is an insertion hole formed at a location corresponding to 7a and 17a.

Then, the first body part 3 is inserted into the second body part 18 from the front side, and the engaging claw 16 of the first body part 3 is inserted into the second body part 18 from the front side.
．． 16 is inserted into the engagement hole 24.24 of the second body portion 18, the engagement claws 16a, 16a are engaged with the rear opening edge of the engagement hole 24.24, and the tapping screw 26.
26 is inserted through the insertion hole 25.25 of the second body part 18 and screwed into the tapping pilot hole 17a517a provided in the mounting boss 17.17 of the first body part 3, whereby the first The body part 3 and the body part 19 of 'iJ2 are combined to form the lamp body 2.

27.27 is an insertion hole formed in the rear wall portion 19 of the second body portion 18 at a location corresponding to the insertion holes 8, 12 of the first body portion 3.

A surrounding wall 28 is provided to protrude so as to surround the area in which the insertion hole 27.27 is formed on the rear surface of the rear wall portion 19, and at the rear end of one side facing each other of the surrounding wall 28, the other side is formed. Engagement pieces 28a, 28a protruding toward the side are formed, and engagement holes 28b, 28b are formed on the other side. Also,
Holes 29 and 29 are formed in a portion of the rear wall portion 19 located in front of the engaging pieces 28a, 28a.

Reference numeral 30 denotes a back cover, which is formed by molding synthetic resin and has a shape that covers the rear surface of the portion surrounded by the surrounding wall 28.

Socket tubes 31.31 are integrally protruded at positions spaced apart vertically on the front surface of the back cover 30, and socket fittings and other necessary members (not shown) are arranged inside the socket tubes 31.31. Light bulbs 32a and 32b are detachably attached.

Reference numeral 33.33 denotes an engagement piece protruding forward from one side edge of the back cover 30, and engagement claws 33a, 33a are protruded from the engagement piece 33.33.

34. 34 is an elastic engagement piece that extends forward from the other side edge of the back cover 30 and is then folded back to form a generally horizontal U-shape when viewed from above, and its outer piece 34a
, 34a have engaging claws 34b, 34b protruding from the outer surfaces thereof.

Thus, the light bulb 32 supported by the socket tube 31, 31
While sequentially inserting the bulbs 32b into the insertion holes 27.8 and the light bulbs 32b into the insertion holes 27.12, insert the back cover 3.
The engagement claws 33a, 33a of the engagement pieces 33.
28a, and press the other side of the back cover 30 toward the lamp body 2 using the engaged portion as a rotational fulcrum, the outer pieces 34a, 34 of the elastic engagement pieces 34.34
a bends inward and enters the inside of the surrounding wall 28, and the engaging claws 34b, 34b are formed in the engaging hole 28 formed in the surrounding wall 28.
b, engaged with 28b. In this way, the back cover 30 is attached to the lamp body 2, and the light bulb 32a is attached to the main partition wall 4 and the reflective surface part 5 of the first body part 3 and the second body part 1.
The light bulb 32b is disposed in an upper light chamber 35 surrounded by the upper wall 20 and the left and right side walls 22.
It is disposed in a lower lamp chamber 36 surrounded by the front partial partition wall 14, the lower wall 21, and the left and right side walls 22, 23 of the second body part 18.

37 is a colored glove made of colored transparent synthetic resin and shaped like a bell, and an engaging piece 38.37 extends from the rear opening edge.
38 protrudes rearward, and the engagement piece 38.3
Engagement pawls 38a, 38a are provided on the outer surface of 8 to protrude.

The colored globe 37 is attached to a light bulb 32a disposed in the upper lamp chamber 35, and its engagement pieces 38, 38 pass through engagement notches 8a, 8a formed in the insertion hole 8 of the reflective surface portion 5. The engaging claws 38a, 38a are connected to the engaging notch 8.
a, 8a, and the rear end of the colored globe 37 is brought into contact with the front opening edge of the insertion hole 8, whereby the colored globe 37 is attached to the reflective surface part 5 while covering the light bulb 32a. It will be worn.

Reference numeral 39 denotes a lens, which is attached to the lamp body 2 by appropriate means while covering the front opening of the lamp body 2. A protrusion 40 protruding from the inner surface of the boundary between a portion of the lens 39 corresponding to the upper lamp chamber 35 and a portion corresponding to the lower lamp chamber 36 is fitted into the fitting groove 15 of the lamp body 2. be done.

(G. Effects of the Invention) As is clear from the above description, the vehicle light of the present invention has two or more light chambers each equipped with a reflective surface and a light bulb, and each light chamber is partitioned by a partition wall. This is a vehicular lamp in which the front surface of the lamp body is covered with a lens, and the lamp body is comprised of a first body part in which a reflective surface part and a partition wall are integrally formed of synthetic resin; It is characterized by being composed of a body part of ¥S2 which forms an outer shell in which the body part is housed.

Therefore, in the vehicle lamp of the present invention, since there is no wall extending in the front-rear direction on the side opposite to the bulkhead of the reflective surface, it is easy to perform work such as reflective painting or metal vapor deposition on the reflective surface, and The film also adheres well.

In addition, there are parts that are exposed to the outside air and therefore require weather resistance and mechanical strength, and parts that are not exposed to the outside air and therefore do not require weather resistance but require surface precision such as reflective surfaces. Since they are molded as separate parts, it is possible to use materials suitable for each purpose, greatly expanding the range of materials available for the lamp body.

In the first embodiment, the present invention is applied to a rear combination lamp for an automobile, but the scope of the present invention is not limited to such a lamp. Moreover, it is possible to apply to all or part of a lamp chamber having three or more lamp chambers. Furthermore, the light bulb is not limited to being attached through the back cover, and may be attached to the second body portion, for example.

In addition, the specific shapes and structures shown in the above embodiments are merely examples of embodiments of the present invention, and the technical scope of the present invention should not be construed as limited by these. It's not something you can do.

[Brief explanation of the drawing]

1 to 4 show an example of the implementation of the vehicle lamp of the present invention, in which FIG. 1 is a horizontal sectional view, and FIG.
3 is a partially cutaway front view, FIG. 4 is a rear view, and FIG. 5 is a vertical sectional view showing an example of a conventional vehicle lamp. Explanation of symbols 1...Vehicle light fixture, 2...Light fixture body, 3...
1st body part, 4.13.14... Partition wall, 5... Reflective surface part, 6... Reflective surface, 9... Reflective surface part, 10... Reflective surface, 18... Second body part, 32a... light bulb, 32b... light bulb, 35...
Light chamber, 36...Light chamber, 39...Lens Applicant: Yuji Komatsu, Patent Attorney, Koito Seisakusho Co., Ltd. - Enlarged sectional view (n-It line) Vertical sectional view (example) Diagram

Claims (1)

[Claims] Having two or more light chambers each equipped with a reflective surface and a light bulb,
A vehicular light having a front surface of a light body which is partitioned by a partition between each light chamber and covered with a lens, the light having a reflective surface portion and a partition wall formed integrally with a synthetic resin. A vehicle lamp comprising a body portion and a second body portion forming an outer shell in which the first body portion is housed.