JPH0648112U - Fixing structure of thin metal plate in vehicle lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a fixing structure for a thin metal plate in a vehicular lamp that can reduce the number of parts and the number of work steps. [Structure] Resin lamp upper protrusion 12c on the lamp housing 12
Are protruded toward the lens 14 side, and a fixing hole 15a is formed in a thin metal plate 15 formed in a predetermined shape.
A fixing hole 15 is formed by forming a slit 15b whose one end faces 5a.
A fixing piece 15e that can be raised including the peripheral edge portion 15f of a is formed, and the fixing piece 15e is raised by pushing the upper protrusion 12c into the fixing hole 15a, and at the same time, the fixing piece 1
Due to the restoring force of 5e, the shade 15 causes the lamp housing 1 to
At the same time when the shade 15 is fixed to 2, the peripheral edge 15f is made to bite into the upper protrusion 12c so as to prevent the shade 15 from coming off in the axial direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicular lamp in which a lens is fixed to a lamp housing and a thin metal plate having a predetermined shape is disposed between the lamp housing and the lens in the lamp housing. It relates to the fixing structure of thin metal plates.

[0002]

[Prior art]

 Conventionally, for example, as shown in FIG. 4, a lamp housing 2 supporting a bulb 1 and having a fitting portion 2a formed along an opening edge portion, and a hot melt material 3 filled in the fitting portion 2a with legs. There is a side light 6 having a lens 4 to which a portion 4a is fixed and a shade 5 provided between the bulb 1 and the lens 4.

The shade 5 is provided from the bulb 1 when the lens 4 becomes larger or narrower than its original intended range as the design weight of the lamps in recent years has diversified and the design specific gravity has increased. It plays a role of blocking a part of the emitted luminous flux. For example, a thin metal plate having a high light-shielding property such as an aluminum plate which is bent and reinforced at the outer peripheral edge is used. It is fixed via a screw 7 to a fixed portion 2b protrudingly provided on the inner surface.

[0004]

[Problems to be solved by the device]

 By the way, since the shade 5 configured as described above is fixed by the screw 7, not only the number of parts and the weight increase, but also the problem that the work man-hour when mounting the shade 5 rises occurs. It was

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a fixing structure for a thin metal plate in a vehicular lamp, which can reduce the number of parts and the number of working steps. Is.

[0006]

[Means for Solving the Problems]

 According to the present invention, a lens is fixed to a lamp housing, and a thin metal plate, which is formed between the lamp housing and the lens and has a predetermined shape, is provided in the lamp housing. A structure for fixing a thin metal plate in a vehicle lamp provided, wherein a resin projection is provided on the lamp housing so as to project toward the lens side, and a fixing hole is formed in the thin metal plate. A slit whose one end faces is formed in the fixing hole to form a stand-up fixing piece including a peripheral portion of the fixing hole, and the fixing piece is started by pushing the protrusion into the fixing hole, and The thin metal plate is fixed to the lamp housing by the restoring force of the fixing piece, and at the same time, the peripheral edge portion is bited into the protrusion to prevent the thin metal plate from coming off in the axial direction. The gist of the Rukoto.

[0007]

[Action]

 In such a configuration, the fixing piece is raised by simply pushing the projection into the fixing hole, and the fixing piece can fix the thin metal plate to the lamp housing.

[0008]

【Example】

 Next, an embodiment of a fixing structure for a thin metal plate in a vehicular lamp according to the present invention will be described with reference to FIGS.

(First Embodiment) FIGS. 1 and 2 show a first embodiment of the present invention. FIG. 1 (A) is a front view of a thin metal plate of the present invention, and FIG. FIG. 1 (C) is an enlarged front view, FIG. 1 (C) is a perspective view of an essential part with a thin metal plate fixed, and FIG.

In FIG. 2, a vehicle width light 10 includes a lamp housing 12 that supports a bulb 11 and has a fitting portion 12a formed along an opening edge portion thereof, and a hot melt material 13 filled in the fitting portion 12a. A lens 14 having a leg portion 14a fixed thereto and a shade 15 as a thin metal plate provided between the bulb 11 and the lens 14 are provided.

The lamp housing 12 and the lens 14 are positioned by engaging a positioning hole 12b formed in the fitting portion 12a with a lance 14b projecting integrally with the leg portion 14a. . Further, resin upper and lower protrusions 12c and 12d are integrally formed on the inner surface of the lamp housing 12 toward the lens 14 side.

The shade 15 is, for example, a thin metal plate having a high light-shielding property such as an aluminum plate and having an outer peripheral edge portion bent and reinforced, and is used. The fixing portion 16 is press fitted and fixed to the upper protrusion 12 c of the lamp housing 12. Are integrally formed.

As shown in FIG. 1A, the fixing portion 16 is integrally formed with a substantially rhombic fixing hole 15a formed in a predetermined portion of the shade 15 and slits 15b and 15b.

As shown in FIG. 1B, in the fixing hole 15a, one of the facing corners 15c, 15c and the facing corners 15d, 15d has one facing corner 15c, 15c within the end surface of the upper protrusion 12c. And the other opposite corner portions 15d, 15d are set outside the end surface of the upper protrusion 12c. Therefore, a part of the peripheral edge portion 15f of the fixing hole 15a is located within the end surface of the upper protrusion 12c.

The slits 15b, 15b are located at the corners 15d, 15d, one end faces the fixing hole 15a, and the other end is located outside the end surface of the upper protrusion 12c. The line connecting the adjacent slits 15b and the corners 15d is a bent line 17 for raising the fixing pieces 15e, 15e ... When fixing the shade 15 to the lamp housing 12, as shown in FIG. 1 (C). Has become. Therefore, the position of the corner portion 15d and the extension length of the slit 15b are set so that the fold lines 17, 17 ... Are located outside the end surface of the upper protrusion 12c.

In the above structure, when fixing the shade 15 to the lamp housing 12, the fixing portion 16 is simply opposed to the end surface of the upper protrusion 12c, and the shade 15 is applied toward the lamp housing 12 side from this state. The fixing pieces 15e, 15e ... Are forcibly started up using the lines 17, 17 ... as broken lines only by pressing, and as shown in FIG. 1C, the restoring force of the fixing pieces 15e, 15e. The shade 15 is fixed.

At this time, a part of the peripheral edge portion 15f bites into the upper protrusion 12c, so that the effect of preventing the shade 15 from coming off in the axial direction can be made more reliable.

Moreover, since the fixing hole 15a has a rhombic shape and the peripheral edge portions 15f contacting the upper protrusions 12c are inclined in the directions intersecting with each other, part of the peripheral edge portion 15f bites into the upper protrusions 12c. In combination with this, it is possible to give the shade 15 a screw action. For example, even if the shade 15 tries to rotate about the upper protrusion 12c as an axis due to vibration of the vehicle body or the like, the rotation is hindered by the lower protrusion 12d. It does not rotate. Therefore, the fixing portion 16 formed on the shade 15 can secure the fixing strength by one.

Further, since the upper protrusion 12c is formed integrally with the lamp housing 12, there is no discomfort when the lens is seen through, and the appearance is improved as compared with the conventional screw 7. You can

(Second Embodiment) FIG. 3 is an enlarged perspective view of a main part of a second embodiment of the present invention. In the above embodiment, of the facing corners 15c, 15c and the corners 15d, 15d, one facing corner 15c, 15c is located in the end face of the upper protrusion 12c and the other facing corner 15d, 15d. Although the fixing hole 15a is set so that 15d is located outside the end surface of the upper protrusion 12c, for example, as shown in FIGS. 3 (A) and 3 (B), all of the fixing holes 25a and 35a are arranged on the upper protrusion 12c. It may be located in the end face of the.

The shape of the fixing holes 15a, 25a, 35a is a rhombus shown in FIG. 1 (B), a square fixing hole 25a shown in FIG. 3 (A), or a regular hexagonal fixing shown in FIG. 3 (B). Other than the hole 35a, etc., it is not particularly limited to a perfect circle, an ellipse, a triangle, or the like.

A plurality of slits 25b, 25b ..., Slits 35b, 35b ... Are radially formed from the respective corners of the respective fixing holes 25a, 35a. Each of the slits 25b and 35b has an extension length so that the lines 17, 17 ... Connecting the outer ends of the adjacent slits 25d and 35d are located outside the end surface of the upper protrusion 12c.

Even with such a configuration, not only the same effect as in the above-described embodiment can be obtained, but also the gap between the outer periphery of the upper protrusion 12c and the fixing holes 25a and 35a after the start-up can be reduced. In addition, as is clear from FIG. 3 (B), the greater the number of corners, the shorter the distance from the peripheral end face of the upper protrusion 12c to the outer end of the slit 35b. The shade 15 can be fixed in a state where the gap is small.

In FIGS. 3A and 3B, the same components as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. Further, the fixed structure of the thin metal plate in the vehicular lamp of the present invention is not limited to the vehicle width lamp 10 shown in the above-mentioned embodiment, and for example, for a vehicle such as a projector type headlamp or a rear combination lamp. Of course, it can be applied to all lighting fixtures.

[0025]

[Effect of device]

 As described above, in the fixing structure for the thin metal plate in the vehicular lamp of the present invention, the resin housing is provided with the resin protrusion projecting toward the lens side, and the thin metal plate is provided with the fixing hole. Then, a slit whose one end faces is formed in the fixing hole to form a fixing piece that can be raised including the peripheral portion of the fixing hole, and the fixing piece is raised by pushing the protrusion into the fixing hole. At the same time, the thin metal plate is fixed to the lamp housing by the restoring force of the fixing piece, and at the same time, the peripheral edge portion is bitten into the protrusion to prevent the thin metal plate from coming off in the axial direction. It is possible to reduce the number of parts and work man-hours.

[Brief description of drawings]

1A and 1B show a fixing structure for a thin metal plate in a vehicular lamp according to the present invention, where FIG. 1A is a front view of the thin metal plate, FIG. 1B is an enlarged view of a main part, and FIG. It is a perspective view of the principal part of a state.

FIG. 2 is likewise a sectional view of a side lamp.

3A and 3B show a second embodiment of the present invention, in which FIG. 3A is an enlarged view of a main portion having a square fixing hole, and FIG. 3B is an enlarged view of a main portion having a regular hexagonal fixing hole. .

FIG. 4 is a cross-sectional view of a side lamp showing a conventional fixing structure for a thin metal plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Car width light (vehicle lamp) 12 ... Lamp housing 12c ... Upper protrusion (projection) 14 ... Lens 15 ... Shade (thin metal plate) 15a ... Fixing hole 15b ... Slit 15e ... Fixing piece 15f ... Peripheral part

Claims (1)

[Scope of utility model registration request] 1. A vehicle lamp in which a lens is fixed to a lamp housing, and a thin metal plate formed in a predetermined shape is disposed between the lamp housing and the lens in the lamp housing. In the fixing structure of a thin metal plate in, a protrusion made of resin is projected toward the lens side in the lamp housing, a fixing hole is formed in the thin metal plate,
A slit having one end facing the fixing hole is formed to form a stand-up fixing piece including a peripheral portion of the fixing hole, and the fixing piece is started by pushing the protrusion into the fixing hole, A vehicle characterized in that the thin metal plate is fixed to the lamp housing by a restoring force of a fixing piece, and at the same time, the peripheral edge portion is bited into the protrusion to prevent the thin metal plate from coming off in the axial direction. Fixing structure of thin metal plate in lighting equipment.