JP2681533B2 - Vehicle lighting - Google Patents

Description

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

A. Industrial field of use B. Outline of invention C. Prior art [Fig. 5] D. Problem to be solved by the invention [Fig. 5] E. Means for solving the problem F. Example [Chapter 5] 1 to 4] G. Effect of the Invention (A. Field of Industrial Application) The present invention relates to a novel vehicular lamp. Specifically, in a vehicular lamp having two or more lamp chambers each having a reflecting surface and a light bulb, the front surface of a lamp body formed by partition walls separating the lamp chambers from each other is covered with a lens. It is intended to provide a new vehicular lamp that is easy to carry out the secondary processing, expands the choice of materials for the lamp body, and has excellent vibration resistance and heat dissipation. is there.

(B. SUMMARY OF THE INVENTION) A vehicular lamp of the present invention accommodates a lamp body, a first body portion in which a reflecting surface portion and a partition wall are integrally formed of synthetic resin, and the first body portion. Since it is composed of the second body part that forms the outer shell, only the partition wall is attached to the reflective surface part, which facilitates the formation of the reflective surface by reflective coating or metal deposition. Since the material of the second body portion can be changed, for example, a material that can easily provide surface accuracy is used for the first body portion, and an inexpensive or highly weather-resistant material for the second body portion. The use of materials expands the scope of material selection. Further, the partition wall is a rear partial partition wall which is composed of a plate-shaped main partition wall extending substantially horizontally, a plate-shaped main part formed at a rear portion of the main partition wall and extending substantially horizontally, and a connecting portion protruding from a front edge of the main part. And a front partial partition formed of a plate-shaped main part formed in the front part of the main partition wall and extending substantially horizontally, and a connecting part protruding from the rear edge of the main part. The property is also improved.

(C. Prior art) [Fig. 5] Each lamp room has two or more lamp chambers, each of which has a reflecting surface and a light bulb. As the vehicle lamp, for example, there is one as shown in FIG.

a is a vehicle lamp, for example, a rear combination lamp for an automobile.

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

The lamp body b has two upper and lower lamp chambers c with an open front,
c ', and the inner surfaces of the lamp chambers c, c'are reflective surfaces d,
d '.

The lower side wall e of the upper lamp chamber c and the upper side wall e'of the lower lamp chamber c'are positioned vertically with a small gap therebetween, and a position approximately midway between these walls e and e'in the front-rear direction. Is the connecting wall f
The two lamp chambers c and c'are integrally formed.

The walls e and e ′ serve as a partition wall between the two lamp chambers c and c ′, and a fitting groove g which is open toward the front is formed at the front end thereof.

h is a lens portion i that covers the front surface of each of the lamp chambers c and c ′,
i'is a lens integrally formed, and is attached to the lamp body b, and the ridge j projecting on the inner surface between the two lens portions i and i'is the above-mentioned lamp body b. Fitting groove g
Is fitted inside.

It should be noted that k and k ′ are light bulbs separately arranged in the respective lamp chambers c and c ′.

(D. Problem to be Solved by the Invention) [FIG. 5] Meanwhile, in the above-described conventional vehicle lamp a,
Since the depths of the lamp chambers c and c'are large and the reflecting surfaces d and d'are extremely deep, the reflecting surfaces d and d'are coated with a reflective paint or metal vapor deposition is performed. However, there is a problem that the workability of the work is poor and the adhesion of the paint and the vapor deposition film is not good.

Further, in the lamp body b, the reflecting surfaces d and d'need to have good surface accuracy, and the outer side surface should have excellent weather resistance and mechanical strength. As described above, the properties of the materials required for the respective parts are different, but in the above-described conventional vehicle lamp a, since the lamp body b is molded as a single member, either one of them is used. The only choice was to use materials that met the requirements and ignore the other requirements, or to compromise the two choices of the materials and both tolerate some deficiency.

In addition, the space l between the connecting wall f and the rear walls e and e'has a small vertical width and is long in the front-rear direction, and the strength of the portion of the molding die located at this portion l is weak. It also has the problem of being easily damaged.

(E. Means for Solving the Problem) In order to solve the above-mentioned problems, the vehicular lamp of the present invention has a first body in which the reflecting surface portion and the partition wall are integrally formed of synthetic resin. Part and a second body part forming an outer shell for accommodating the first body part, and the partition wall is a plate-shaped main partition wall extending substantially horizontally and a substantially horizontal plate formed at the rear part of the main partition wall. A rear partial partition consisting of a plate-shaped main part extending to the front and a connecting part protruding from the front edge of the main part, a plate-shaped main part formed in the front part of the main partition and extending substantially horizontally, and the rear part of the main part. The front partial partition wall is composed of a connecting portion protruding from the edge.

Therefore, in the vehicular lamp of the present invention, since there is no wall extending in the front-rear direction on the side opposite to the partition surface of the reflecting surface portion, it is easy to perform work such as reflective coating and metal deposition on the reflecting surface, and dye or vapor deposition. The film adheres well. In addition, there are parts that are required to have weather resistance and mechanical strength because they are exposed to the outside air, and parts that do not require weather resistance because they are not exposed to the outside air, but there are parts that require surface accuracy such as reflective surfaces. Since they are molded as separate members, it is possible to use materials that are suitable for their respective purposes, and the scope for selecting the material for the lamp body is greatly expanded. Further, the structure of the partition wall significantly improves the vibration resistance and heat dissipation of the lamp.

(F. Embodiment) [FIGS. 1 to 4] The details of the vehicular lamp of the present invention will be described below with reference 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 includes a first body portion and a second body portion.

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

Reference numeral 4 denotes a main partition wall, which has a plate shape extending substantially horizontally, a front edge of which has a shape along the front surface of the lamp body 2, and a rear edge of which has a substantially parabolic shape except for one end, and a rear edge of the rear edge. The one end portion extends straight from the one end of the parabolic portion obliquely rearward.

Reference numeral 5 denotes an upper reflecting surface portion, which extends in a band shape to the left and right when viewed from the front, and a front surface 6 except one end portion thereof is a reflecting surface and has a shape forming a part of a paraboloid of revolution. The one end portion 7 of the reflecting surface portion 5 is formed in a substantially flat plate shape extending obliquely rearward from one end of the remaining portion.

Further, a circular insertion hole 8 is formed substantially in the center of the reflection 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 reflection surface portion, which extends in a band shape to the left and right when viewed from the front, and a front surface 10 except one end portion thereof is a reflection surface and forms a part of a paraboloid of revolution. The one end 11 of the reflecting surface 9 is formed in a substantially flat plate shape extending obliquely rearward from one end of the remaining portion.

In addition, a circular insertion hole 12 is formed in the approximate center of the reflecting surface portion 9.

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

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

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

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

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

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

And, such a front partial partition 14 has its connecting portion 14b.
The upper edge of the main partition wall 4 is integrally connected to a position closer to the front end of the lower surface of the main partition wall 4, and the front edge of the main portion 14a is positioned slightly forward of the front edge of the main partition wall 4. A fitting groove 15 that is open forward is formed by 14 and the front end portion of the main partition wall 4.

Reference numerals 16 and 16 denote engaging pieces integrally projecting rearward from a portion between the other ends of the reflecting surface portions 5 and 9 and the insertion holes 8 and 12, respectively. Protruding engagement claws 16a, 16a are provided.

Reference numerals 17 and 17 denote mounting bosses integrally projecting rearward from one end of the paraboloid of revolution of the reflecting surfaces 5 and 9, and these mounting bosses 17 and 17 have tapping pilot holes opened at their rear end surfaces.
17a and 17a are formed.

The first body portion 3 as described above is formed by molding a synthetic resin, and the connecting portion 13b of the rear partial partition wall 13 is formed.
The part between the connecting part 14b of the front part partition 14 and the connecting part 14b becomes an undercut part, and a slide mold is required for molding this part, but conversely, the rear end part and the rear part of the main partition 4 are required. The length of the narrow portion between the partition wall 13 and the partition 13 is not shortened, and the portion of the mold located in this portion is not weakened in strength.

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

The second body portion 18 has a rear wall portion 19 having a shape substantially along the rear surface of the first body portion 3, and upper and lower side wall portions 20.
21, 22, and 23 are integrally formed.

24 and 24 are engagement pieces 1 of the first body portion 3 of the rear wall portion 19.
Engagement holes 25 and 25 formed at positions corresponding to 6 and 16 are also mounting bosses 17 and 17 of the first body portion 3 of the rear wall portion 19.
It is an insertion hole formed at a location corresponding to the tapping pilot holes 17a, 17a opened on the rear end surface of the.

Then, the first body part 3 is inserted into the second body part 18 from the front side, and the engaging claws 16 of the first body part 3,
16 is inserted into the engaging holes 24, 24 of the second body portion 18, the engaging claws 16a, 16a are engaged with the rear opening edges of the engaging holes 24, 24, and the tapping screws 26, 26 Is the second body part 18
Through the insertion holes 25, 25 of the first body portion 3 and are screwed into the tapping pilot holes 17a, 17a provided in the mounting bosses 17, 17 of the first body portion 3, whereby the first body portion 3 and the second body portion 3 The lamp body 2 is formed by being joined to the body portion 19 of the above.

Reference numerals 27 and 27 denote insertion holes formed in the rear wall portion 19 of the second body portion 18 at positions corresponding to the insertion holes 8 and 12 of the first body portion 3.

A surrounding wall 28 is provided so as to surround the area where the through holes 27, 27 are formed on the rear surface of the rear wall portion 19, and the surrounding wall 28 is formed.
Engagement pieces 28a, 28a projecting to the other side are formed at the rear ends of the one side of 28 facing each other, and the engagement hole 28a is formed on the other side.
b and 28b are formed. In addition, holes 29, 29 are formed in the portion of the rear wall portion 19 located on the front side of the engaging pieces 28a, 28a.

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

Socket cylinders 31, 31 are integrally projectingly provided at vertically spaced positions on the front surface of the back cover 30.
Socket fittings and other required members (not shown) are disposed in the insides of 1, 31 and the light bulbs 32a, 32a are detachably attached thereto.

Reference numerals 33 and 33 denote engagement pieces projecting from one side edge of the back cover 30 toward the front. The engagement pieces 33 and 33 have engagement claws.
33a and 33a are projected.

Reference numerals 34 and 34 denote elastic engaging pieces that extend forward from the other side edge of the back cover 30 and are then folded back and have a substantially U-shape when viewed from above, and outer side pieces 34a and 34a thereof. Engaging claws 34b, 34b are provided on the outer surface of the projecting portion.

Then, the light bulb 32a supported by the socket tubes 31 and 31 is sequentially inserted into the insertion holes 27 and 8, and the light bulb 32b is inserted into the insertion hole 2.
Engaging piece 3 of back cover 30 while inserting it into 7 and 12 in order
The engaging claws 33a and 33a of the third and the third 33 are connected to the surrounding wall 28 of the second body portion 18.
When the other side of the back cover 30 is pressed toward the lamp body 2 by engaging the front side of the engagement pieces 28a, 28a provided on the front side of the engagement piece 28a, 28a, the elastic engagement pieces 34, The outer pieces 34a, 34a of 34 are bent inward to enter the inner side of the surrounding wall 28, and the engaging claws 34b, 34b are formed in the engaging hole 28 formed in the surrounding wall 28.
engaged with b, 28b. In this way, the back cover 30 is attached to the lamp body 2, and the light bulb 32a is attached to the first body portion 3.
An upper lamp chamber 35 formed by being surrounded by the main partition wall 4 and the reflecting surface portion 5 of the second body portion 18, the upper side wall portion 20 and the left and right side wall portions 22 and 23 of the second body portion 18.
The light bulb 32b is disposed inside the main body partition wall 4, the reflection surface portion 9, the rear partition wall portion 13, the front partial partition wall 14 of the first body portion 3, and the lower side wall portion 21 and the left and right side wall portions 22 of the second body portion 18. , 37 is arranged in a lower lamp chamber 36 surrounded by 23, and 37 is a substantially bell-shaped colored globe made of a colored transparent synthetic resin, and an engaging piece 38 from the rear opening edge. , 38
Are projected rearward, and engaging claws 38a, 38a are provided on the outer surfaces of the engaging pieces 38, 38 in a protruding manner.

The colored globe 7 is attached to the light bulb 32a arranged in the upper lamp chamber 35, and the engaging pieces 38, 38 of the colored globe 7 are attached to the reflecting surface portion 5.
Through the engaging cutouts 8a, 8a formed in the insertion hole 8, the engaging claws 38a, 38a are engaged with the rear edges of the engaging cutouts 8a, 8a, and the rear end of the colored glove 37 is inserted through the insertion hole. The colored globe 37 is attached to the reflecting surface portion 5 in a state of covering the light bulb 32a.

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. Then, the protrusion 40 is provided on the inner surface of the boundary between the portion of the lens 39 corresponding to the upper lamp chamber 35 and the portion corresponding to the lower lamp chamber 36, and is fitted into the fitting groove 15 of the lamp body 2. It

(G. Effects of the Invention) As is clear from the above description, the vehicular lamp of the present invention has two or more lamp chambers each provided with a reflecting surface and a light bulb, and a partition is provided between the lamp chambers. A vehicular lamp in which a front surface of a partitioned lamp body is covered with a lens, wherein the lamp body includes a first body portion in which a reflecting surface portion and a partition wall are integrally formed of synthetic resin, and the first body portion. And a second body portion that forms an outer shell in which the body portion is housed, and the partition wall has a plate-shaped main partition wall extending substantially horizontally and a plate-shaped main partition formed at the rear portion of the main partition wall and extending substantially horizontally. A rear partial partition wall consisting of a main part and a connecting part protruding from the front edge of the main part, a plate-shaped main part formed in the front part of the main partition wall and extending substantially horizontally, and a connection protruding from the rear edge of the main part. It is characterized in that it is constituted by a front part partition wall composed of parts.

Therefore, in the vehicular lamp of the present invention, since there is no wall extending in the front-rear direction on the side opposite to the partition surface of the reflecting surface portion, it is easy to perform work such as reflective coating and metal deposition on the reflecting surface, and dye or vapor deposition. The film adheres well. In addition, there are parts that are required to have weather resistance and mechanical strength because they are exposed to the outside air, and parts that do not require weather resistance because they are not exposed to the outside air, but there are parts that require surface accuracy such as reflective surfaces. Since they are molded as separate members, it is possible to use materials that are suitable for their respective purposes, and the scope for selecting the material for the lamp body is greatly expanded. Further, the structure of the partition wall significantly improves the vibration resistance and heat dissipation of the lamp.

Although the present invention is applied to the rear combination lamp for automobiles in the above embodiments, the scope of application of the present invention is not limited to this.
Further, it is possible to apply to all or a part of the one having three or more lamp chambers. Further, the light bulb is not limited to being attached via the back cover, but may be attached to, for example, the second body portion.

In addition, the specific shapes or structures shown in the above embodiments are merely examples of the implementation of the present invention, and the technical scope of the present invention is limitedly interpreted by these. Not something.

[Brief description of the drawings]

1 to 4 show one example of the embodiment of the vehicular lamp of the present invention. FIG. 1 is a horizontal sectional view, and FIG. 2 is II- of FIG.
Enlarged sectional view along line II, 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. DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp, 2 ... Lamp body, 3 ... First body part, 4 ... Main partition wall, 5 ... Reflecting surface part, 6 ... Reflecting surface, 9 ... Reflecting surface part, 10 ...... Reflecting surface, 13 ...... rear partial partition wall,
13a-main part, 13b-connecting part, 14-front partition wall, 14
a ...... main part, 14b ... connecting part, 15 ... fitting groove, 18 ... second
Body part of 32a …… light bulb, 32b …… light bulb, 35 …… light room, 36 …… light room, 39 …… lens

Claims (3)

(57) [Claims] 1. A vehicular lamp in which two or more lamp chambers each having a reflecting surface and a light bulb are provided, and a front surface of a lamp body formed by partitioning between the lamp chambers is covered with a lens. The lamp body is composed of a first body portion in which a reflecting surface portion and a partition wall are integrally formed of synthetic resin, and a second body portion forming an outer shell for accommodating the first body portion. The partition wall is a plate-shaped main partition wall extending substantially horizontally, and a rear part including a plate-shaped main portion formed at a rear portion of the main partition wall and extending substantially horizontally, and a connecting portion protruding from a front edge of the main portion. A vehicle comprising a partition wall and a front partial partition wall formed of a plate-shaped main portion formed in a front portion of the main partition wall and extending substantially horizontally, and a connecting portion protruding from a rear edge of the main portion. Lamp 2. The vehicular lamp according to claim 1, wherein a fitting groove is formed by the front end portion of the main partition wall and the front partial partition wall. 3. The vehicular lamp according to claim 1, wherein the lamp chambers are arranged side by side in the vertical direction.