JP3381418B2 - Lens mounting structure for vehicle lighting - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided at a corner between a front end and a side (side) of a vehicle body and extends from the end to the side (side). The present invention relates to a lens mounting structure of a vehicular lamp that is wrapped around. 2. Description of the Related Art Conventionally, as a vehicle lamp of this type, for example, as shown in FIGS. 4 (a) and 4 (b), a rear end face 2 and a side (side face) 3 of a vehicle body 1 in the front-rear direction. There is a rear combination lamp 5 provided in the corner portion 4 of the above. The rear combination lamp 5 is provided in the corner portion 4 so as to extend from the rear end surface to the side (side surface). The rear combination lamp 5
As shown in FIGS. 5 (a) and 5 (b),
a lamp housing 6 fixed to the lamp housing 6, a bulb 7 provided in the lamp housing 6, and a lens 8 for closing an open end of the lamp housing 6. The lens 8 is airtightly mounted on the lamp housing 6 with the following mounting structure. [0004] That is, a channel portion 9 that opens rearward is provided in the peripheral edge of the open end side of the lamp housing 6, a lens mounting groove 10 is formed in the channel portion 9, and the peripheral edge of the lens 8 is formed. A lens mounting leg is formed along the lens mounting groove 10. In addition, the channel section 9
Is formed in a U-shaped cross section from the inner wall portion 9a, the outer wall portion 9b, and the bottom wall portion 9c. The lens mounting leg includes a lateral mounting leg 11 extending along the inner surface of the upper edge of the lens 8 and a lateral mounting leg 11.
Similarly, the lateral mounting leg (not shown) extending along the inner surface of the lower edge of the lens 8 and the lateral mounting leg 11 (not shown) protruding from the inner surface of the side edge of the lens 8. A vertical mounting leg portion 12 is provided continuously. As shown in FIG. 5 (b), the vertical mounting leg portion 12 has a rib-like base portion 12 protruding from the inner surface of the side edge of the lens 8.
a and a sealing leg 12b integrally provided on the rib base 12a toward the front. The lens mounting leg 11 is hermetically fixed in the lens mounting groove 10 via the hot melt seal member 13. Reference numeral 14 denotes a lamp room formed between the lamp housing 6 and the lens 8. (For example, this type of conventional technology is disclosed in
[0007] In such a mounting structure of the lens 8 to the lamp housing 6, the horizontal mounting leg 11 and the vertical mounting leg 12 from the surface side of the lens 8. When the part is visually recognized, the appearance of the two mounting leg parts 11 and 12 is different. That is, in the mounting portion of the upper and lower edges of the lens 8 to the lamp housing 6, the periphery of the lateral mounting leg portion 12 is shown in FIG.
As shown in FIG. 4A, since the channel 9 is surrounded by the inner wall 9a, the outer wall 9b, and the bottom wall 9c, FIG.
As shown in (b), the portions a and b of the upper and lower edges of the lens 8 are seen as black stripes 15. However, as shown in FIG. 5 (b), the vertical mounting leg portion 12 has a drawback due to die cutting during the injection molding of the lens 8.
It is configured to be bent from a rib-like base 12a and a sealing leg 12b. For this reason, at the mounting portion of the side edge of the lens 8 to the lamp housing 6, the rib base 12
Light enters the lamp chamber 14 from the inside of the lamp chamber 14 in the range of d in FIG. 5B, and the rib base 12a is viewed from the front side of the lens 8 when the rib base 12a is seen in FIG. ) In the area c. As described above, in the lens mounting structure as shown in FIG. 5, the peripheries of the lens 8 are different between the ranges a and b and the range c as shown in FIG. The appearance was impaired and it was not good. As a method for solving this problem, a coating is applied to the portion of the range d so that the portion of the range c has a black streak like the portions of the ranges a and b, so that the lens 8 as a whole is formed.
It is also conceivable that a uniform black streak is formed on the periphery of. [0012] However, in this method, in order to prevent the paint from adhering to the portion in the range e, it is necessary to apply the hand-painting to the portion in the range d. In order to prevent light from being incident on the rib base 12a from the tip, a housing wall 9d as shown by a broken line is extended on the inner side wall 9a, and the rib wall is formed by the housing wall 9d. It is also conceivable to cover the side of the base 12a with respect to the center of the lamp chamber 14. However, in this case, the housing wall 9
Since d can be seen through the vicinity of the peripheral edge of the lens 8, the appearance may be rather deteriorated. SUMMARY OF THE INVENTION An object of the present invention is to provide a lens mounting structure for a vehicle lamp in which the appearance of a mounting portion of a lens peripheral portion to a lamp housing is uniform with a simple configuration. In order to achieve this object, according to the present invention, a lamp housing is provided on a corner portion between a side surface of a vehicle body and an end surface in a front-rear direction, the lamp housing extending over both surfaces. A lens mounting groove that opens toward one side in the front-rear direction is formed in a peripheral edge portion on an open end side of the lamp housing, and the open end of the lamp housing is closed by a lens that curves across the side surface and the end surface, and the lens A lens mounting leg comprising a horizontal mounting leg extending along the inner surface of the upper and lower edges and a vertical mounting leg projecting from the inner surface of the side edge of the lens and connecting the horizontal mounting legs. The vertical mounting leg has a rib-like base protruding from the inner surface of the side edge of the lens, and a sealing leg extending in the front-rear direction with the tip of the rib-like base bent and extended. And the lens In a lens mounting portion structure of a vehicle lighting device in which a mounting leg is hermetically fixed in the lens mounting groove via a sealing member, the rib-shaped base is removed from a portion corresponding to the rib-shaped base on the outer surface of the lens. A notch concave portion provided with a refraction surface that allows the wall forming the lens mounting groove of the lamp housing to be seen from the front end of the rib-shaped base when viewed, the front end of the rib-shaped base and the sealing leg portion And a lens mounting structure for a vehicular lamp formed at a portion connected to the vehicle. According to such a configuration, the rib-like base is visually recognized from the portion corresponding to the rib-like base on the outer surface of the lens by the action of the refraction surface of the notch recess. The wall forming the lens mounting groove of the lamp housing can be seen from the front end of the base, and the portion of the lens peripheral edge that is attached to the lamp housing can be seen uniformly from the outer surface of the lens. An embodiment of the present invention will be described below with reference to FIGS. As shown in FIGS. 1 (a) and 1 (b), there is a rear combination lamp 5 provided at a corner portion 4 between a rear end surface 2 and a side (side surface) 3 of a vehicle body 1 in the front-rear direction. The rear combination lamp 5 extends from the rear end surface to the side (side surface).
The corner portion 4 is provided so as to go around to the side. The rear combination lamp 5
The rear panel 1 is attached to the vehicle body 1 as shown in FIGS.
a lamp housing 6 fixed to the lamp housing 6, a bulb 7 provided in the lamp housing 6, and a lens 8 for closing an open end of the lamp housing 6. The lens 8 is airtightly mounted on the lamp housing 6 with the following mounting structure. That is, a channel portion 9 that opens rearward is provided at the peripheral edge of the open end side of the lamp housing 6, a lens mounting groove 10 is formed in the channel portion 9, and the peripheral edge of the lens 8 is formed. A lens mounting leg is formed along the lens mounting groove 10. In addition, the channel section 9
Is formed in a U-shaped cross section from the inner wall portion 9a, the outer wall portion 9b, and the bottom wall portion 9c. The lens mounting leg includes a lateral mounting leg 11 extending along the inner surface of the upper edge of the lens 8 and a lateral mounting leg 11.
Similarly, the lateral mounting leg (not shown) extending along the inner surface of the lower edge of the lens 8 and the lateral mounting leg 11 (not shown) protruding from the inner surface of the side edge of the lens 8. A vertical mounting leg portion 12 is provided continuously. As shown in FIG. 1C, the vertical mounting leg 12 is a rib-like base 12 projecting from the inner surface of the side edge of the lens 8.
a and a sealing leg 12b integrally provided on the rib base 12a toward the front. The lens mounting leg 11 is hermetically fixed in the lens mounting groove 10 via the hot melt seal member 13. Reference numeral 14 denotes a lamp room formed between the lamp housing 6 and the lens 8. Further, as shown in FIG. 1 (d), a cutout recess 20 is formed in a continuous portion between the tip of the rib-like base portion 12a and the sealing leg portion 12b. This notch recess 20
Are formed in a V-shape from the refraction surface 20a and the reflection surface 20b. The refraction surface 20a is formed inside the lens housing groove 10 of the lamp housing 6 from the tip of the rib-like base 12a when the rib-like base 12a is visually recognized from a portion corresponding to the rib-like base 12a on the outer surface of the lens 8. The angle is set so that the wall 9a can be seen. Next, the operation of the lens mounting portion structure of the vehicle lamp having such a configuration will be described. According to such a configuration, by the action of the refraction surface 20a of the cutout recess 20, when the rib-like base 12a is visually recognized from the portion corresponding to the rib-like base 12a on the outer surface of the lens 8, The inner wall portion 9a forming the lens mounting groove 10 of the lamp housing 6 can be seen from the tip of 12a, and the mounting portion of the peripheral portion of the lens 8 to the lamp housing 6 is shown from the outer surface of the lens 8 in FIG. Black streak 1
It will look uniform as 5 '. The conventional vertical mounting leg 12 shown in FIG.
In the above structure, when coating is performed on the rear surface 12e side of the vertical mounting leg portion 12 and the inner peripheral surface 8a of the lens 8, the sealing leg portion 12b and the peripheral edge of the lens 8 are coated as shown in FIG. In the narrow space F between the side walls 21a of the masking plate 21
And it is necessary to engage the side wall 21a with the back surface of the sealing leg 12b, so that the masking operation is troublesome and not easy. However, according to the structure of FIG. 1 of the present invention, a masking plate (masking jig) is used.
By providing a side wall 22b near the side edge 22a of the base 22 and engaging the side edge 22a with the tip of the sealing leg 12b, the tip bending portion 22c of the side wall 22b is engaged with the notch recess 20. When setting the masking plate 22, it is not necessary to use the narrow space F as shown in FIG. 2A, so that the setting of the masking plate 22 can be easily performed. Further, as shown in FIGS. 3 (a) and 3 (b), a molding die for injection-molding the lens 8 is a first die 30,
The second mold 31, the slide core 32 and the like are provided, and the mold 3 is provided.
When the slide cores 32 are moved away from each other as indicated by arrows 33 and 34, the slide core 32 is slid in a diagonal right direction in the direction indicated by arrow 35 in conjunction with the first mold 30, thereby performing injection molding. The molds 30 and 31 and the slide core 32 can be released from the lens 8 to be molded. In the conventional molding die for injection-molding the lens 8 shown in FIG. 5, as shown in FIG. 3B, a parting line is formed at the corner D1 at the tip of the sealing leg 12b. When set, burrs are likely to occur at the corner D1. Even if the sealing leg portion 12b where the burr is generated is airtightly fixed in the lens mounting groove 10 by the hot melt seal member 13, the burr portion may impair the airtightness. In order to eliminate this, if a parting line is set at the corner D3 between the rib base 12a and the sealing leg 12b, the sealing leg 12b is formed by the first mold 30. . This sealing leg 12b has a total length L1.
Is required to be released from the first mold 30, so that the length for release is too long, and release is difficult. However, according to the structure of FIG. 1 of the present invention described above, the corner D2 of the reflection surface 20b of the notch 20 can be used as a parting line. The release length L2 of the sealing die 12b is sufficiently shorter than L1, and the sealing leg 12b is connected to the first mold 30.
From the mold. As described above, the present invention is provided on both corners between the side surface of the vehicle body and the end surface in the front-rear direction so as to straddle the both surfaces and protrude from the inner surface of the side edge of the lens. The vertical mounting leg portion includes a rib-shaped base portion protruding from the inner surface of the side edge portion of the lens, and a sealing leg portion that is bent and extended at the tip of the rib-shaped base portion and extends in the front-rear direction. In the lens mounting part structure of the vehicle lamp, the lens of the lamp housing is viewed from the tip of the rib-shaped base when the rib-shaped base is visually recognized from a portion corresponding to the rib-shaped base on the outer surface of the lens. A notch concave portion provided with a refraction surface for making the wall portion forming the mounting groove visible is formed at a continuous portion between the tip of the rib-like base portion and the sealing leg portion. To the lamp housing The appearance of the attachment can be made uniform with a simple configuration.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a perspective view of a vehicle provided with a vehicle lamp according to the present invention, (b) is an enlarged view of a main part of (a), and (c) is an enlarged view of (b). A-A
FIG. 3D is a cross-sectional view along the line, and FIG. 4D is a cross-sectional view along the line BB in FIG. 2 (a) is an explanatory diagram for coating the lens shown in FIG. 1 (d), and FIG. 2 (b) is an explanatory diagram for coating the lens shown in FIG. 5 (b). 3 (a) is an explanatory diagram for the lens molding die shown in FIG. 1 (d), and FIG. 3 (b) is an explanatory diagram for the lens molding die shown in FIG. 5 (b). is there. FIG. 4A is a perspective view of a vehicle provided with the vehicular lamp according to the present invention, and FIG. 4B is an enlarged view of a main part of FIG. 5A is a cross-sectional view taken along line CC of FIG. 4B, and FIG. 5B is a cross-sectional view taken along line DD of FIG. 4B. [Description of Signs] 1 ... Body 2 ... Rear end surface 3 ... Side (side surface) 4 ... Corner 6 ... Lamp housing 8 ... Lens 9 ... Channel 9c ... Inner side wall 10 ... Lens mounting groove 11 ... Lateral mounting leg 12 ... Vertical mounting leg 12a Rib base 12b Sealing leg 13 Hot melt seal member 20 Notch recess

Claims (1)

(57) [Claim 1] A lamp housing is provided at a corner between a side surface of a vehicle body and an end surface in a front-rear direction, the lamp housing extending over both surfaces,
A lens mounting groove that opens toward one side in the front-rear direction is formed at a peripheral edge of the open end side of the lamp housing, and the open end of the lamp housing is closed by a lens that curves across the side surface and the end surface. A lens mounting leg is provided comprising a horizontal mounting leg extending along the inner surface of the upper and lower edges of the lens and a vertical mounting leg projecting from the inner surface of the side edge of the lens and connecting the horizontal mounting legs. The vertical mounting leg is a rib-shaped base protruding from the inner surface of the side edge of the lens; and a sealing leg extending in the front-rear direction with the tip of the rib-shaped base bent and extended. Wherein the lens mounting leg is hermetically fixed in the lens mounting groove via a sealing member in a lens mounting portion structure of a vehicle lamp, wherein the lens mounting leg corresponds to the rib-shaped base on the outer surface of the lens. From the part A notch concave portion provided with a refraction surface that allows a wall portion forming a lens mounting groove of the lamp housing to be seen from the tip of the rib-shaped base portion when the rib-shaped base portion is visually recognized,
A lens mounting part structure for a vehicular lamp, wherein the lens mounting part is formed at a continuous portion between a tip of the rib-shaped base and the sealing leg.