JPH0654012U - Lens mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to prevent the mounting body from floating because it has a good appearance and the lens is firmly mounted. A lens 3 is provided with a mounting leg portion 34 having a constant length, an engaging convex portion 35 is provided on the mounting leg portion 34, a mounting wall portion 13 is provided on the mounting body 1, and an engaging hole is provided in the mounting wall portion 13. 14 is provided,
The mounting wall portion 13 is provided with the positioning wall portion 15, and the positioning wall portion 15 is provided with the locking convex portion 16. As a result, the fitting protrusion 35
Is fitted into the fitting hole 14, the end surface 36 of the mounting leg portion 34 is brought into contact with the positioning wall portion 15, and the engaging convex portion 16 is attached to the mounting leg portion 34.
Lock. Then, the lens 3 is attached to the attachment body 1. At this time, since the length of the mounting leg portion 34 is constant, no blackish object can be seen in some places on the edge of the lens 3, and the appearance is improved. The fitting of the lens 3 is ensured by the fitting between the fitting convex portion 35 and the fitting hole 14 and the contact between the end surface 36 of the mounting leg portion 34 and the positioning wall portion 15. Locking protrusion 1
By locking 6 to the mounting leg portion 34, it is possible to prevent the mounting body 1 from floating.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for a lens such as a vehicle lighting device such as a high mount stop lamp or a vehicle decoration device such as a rear finisher. The present invention relates to a lens mounting structure capable of preventing the body from floating.

[0002]

[Prior art]

 A conventional vehicle lamp of this type will be described with reference to FIGS. This example illustrates a high mount stop lamp. In the figure, 1 and 2 are a front side housing (front side cover) and a rear side housing (rear side cover) as a lens mounting body. The front housing 1 and the rear housing 2 have a cover shape and are fitted and fixed to each other to form a horizontally elongated hollow body having an open bottom. A horizontally long opening 10 is provided in the upper part of the housing 1 on the front side. A mounting portion 11 is integrally projected at a predetermined position on the edge of the opening 10, and a fitting hole 12 is formed in the mounting portion 11.

In the figure, 3 is a lens. The lens 3 has a horizontally long shape, and a fish-eye prism element group 30 is provided on the inner surface thereof. A mounting leg portion 32 is integrally projectingly provided at a predetermined position on the edge of the lens 3 so as to correspond to the mounting portion 11 of the front housing 1, and a fitting convex portion 33 is provided on the mounting leg portion 32. It is provided so as to correspond to the fitting hole 12 of the front housing 1. The lens 3 is press-fitted into the opening 10 of the front side housing 1 so that the fitting convex portion 33 of the lens 3 is fitted into the fitting hole 12 of the front side housing 1 to move the lens 3 to the front side. It is attached to the opening 10 of the housing 1. As a result, the lamp chamber 31 is defined by the front housing 1, the rear housing 2 and the lens 3.

In the figure, 5 is a valve holder. The bulb holder 5 is fixed to the front-side housing 1 and the rear-side housing 2 with a screw 52 or the like, and disposed in the lamp chamber 31. The front housing 1, the rear housing 2, the lens 3, and the bulb holder 5 constitute a lamp body.

In the figure, 4 is a light source bulb. The light source bulb 4 includes a glass tube 40, a filament (not shown) arranged in the glass tube 40, a base 41 provided at the rear of the glass tube 40, and an intermediate portion of the base 41. The collar portion 42 is integrally provided. The light source bulb 4 is detachably attached to the bulb holder 5, and the filament of the light source bulb 4 is positioned in the vicinity of a focal point F of a reflecting surface 60 of a reflector 6 which will be described later, and the light source bulb 4 is attached to the lamp chamber 31. Place inside. For example, three light source bulbs 4 are arranged side by side in the lateral direction. The light source bulb 4 is connected to a power source (battery) via a foot break switch.

In the figure, reference numeral 6 is a reflector made of an elastic member such as a thin steel plate. In this reflector 6, a reflective paraboloidal reflective surface 60 as a reflective surface portion is formed by, for example, drawing, and three, for example, are arranged side by side, and the fixed portion 61 is bent from the lower end of the reflective surface 60. To be integrated. The fixing portion 61 of the reflector 6 is fixed to the valve holder 5 with the screw 62, and the reflector 6 is arranged in the lamp chamber 31. The reflective surface 60 is vapor-deposited with aluminum. In addition to the screw 62, the fixing means of the reflector 6 has a pin integrally protruding from the valve holder 5, and the pin is heat-tightened to fix the reflector 6 to the valve holder 5. Is also good.

Thus, when the foot brake is applied, the foot brake switch is turned on, the light source bulb 4 is turned on, the light from the light source bulb 4 is reflected by the reflecting surface 60 of the reflector 6, and the reflected light (in the figure, A is indicated by a broken line.) A is radiated to the front of the vehicular lamp (the rear of the vehicle) through the lens 3 to alert the following vehicle.

[0008]

However, in the conventional lens mounting structure described above, the mounting leg portion 32 provided in the lens 3 is fitted into the fitting hole 12 of the mounting portion 11 provided in the front housing 1. The lens 3 is attached to the front housing 1 by fitting the fitting convex portion 33. Therefore, the length (depth) of the mounting leg portion 32 as shown in FIG. 6 is different from the length (depth) of the other portion as shown in FIG. 7 at the periphery of the lens 3. . As a result, when viewed from the front of the lens 3, as shown in FIG. 5, the portion of the edge of the lens 3 where the mounting leg portions 32 are provided looks darker than the surroundings, which is unsightly. Further, since the fitting convex portion 33 of the lens 3 is only fitted into the fitting hole 12 of the front housing 1, the fitting convex portion 33 is disengaged from the fitting hole 12, and the lens 3 is It may come off from the opening 10 of the front housing 1. On the other hand, there is a problem that the front housing 1 may float above the lens 3.

An object of the present invention is to provide a lens mounting structure that is good in appearance, can firmly mount the lens, and can prevent the mounting body from floating.

[0010]

[Means for Solving the Problems]

 According to the present invention, in order to achieve the above-mentioned object, a mounting leg having a constant length is provided on the entire peripheral edge of a lens, and an engaging projection is provided on the mounting leg, while the entire peripheral edge of the opening of the mounting body is provided. Is provided with a mounting wall portion facing the mounting leg portion of the lens, and an engaging hole is provided in the mounting wall portion so as to correspond to the engaging convex portion of the lens, and the entire circumference of the mounting wall portion is provided. A positioning wall is provided at the tip to abut the end surface of the mounting leg to determine the mounting position of the lens, and the positioning wall is locked to the end of the mounting leg to float the mounting body. It is characterized in that a locking convex portion for preventing the above is provided.

[0011]

[Action]

 According to the present invention, with the above structure, the lens is press-fitted into the opening of the mounting body, the fitting convex portion of the lens is fitted into the fitting hole of the mounting body, and the end surface of the mounting leg of the lens is mounted on the mounting body. The mounting position of the lens is determined by contacting the positioning wall of the lens, and the locking projection of the mounting body is locked to the end of the mounting leg of the lens. Then, the lens is attached to the opening of the mounting body. At this time, the length of the mounting leg of the lens is constant over the entire circumference, so even when viewed from the front of the lens, there are no blackish spots on the edges of the lens, so it looks good. Is improved. Further, the fitting convex part of the lens and the fitting hole of the mounting body and the contact between the end surface of the mounting leg of the lens and the positioning wall part of the mounting body firmly mount the lens on the mounting body. Can be installed. Furthermore, by locking the locking projection of the mounting body to the end of the mounting leg of the lens, it is possible to prevent the mounting body from floating above the lens.

[0012]

【Example】

 An embodiment of a lens mounting structure according to the present invention will be described below with reference to FIGS. This example describes a high mount stop lamp. In the figure, the same reference numerals as those in FIGS. 5 to 7 indicate the same components. In the figure, 34 is a mounting leg of the lens 3. The mounting leg portion 34 is integrally formed on the entire peripheral edge of the lens 3 so as to project inward. The length of the mounting leg portion 34 is constant over the entire peripheral edge of the lens 3. A fitting convex portion 35 is integrally projected at a predetermined position on the outer side surface of the intermediate portion of the mounting leg portion 34. As shown in FIG. 4, the fitting convex portion 35 is gently curved from the rear portion side to the intermediate portion, and the front surface side is substantially vertically raised.

In the figure, 13 is a mounting wall portion of the front housing 1. The mounting wall portion 13 is integrally formed on the entire periphery of the opening 10 of the front housing 1 so as to project inward. The length (depth) of the mounting wall portion 13 is constant over the entire periphery of the opening 10 of the front housing 1. A fitting hole 14 is provided at a predetermined position in the middle portion of the mounting wall portion 13 so as to correspond to the fitting convex portion 35 of the lens 3. In the figure, reference numeral 15 is a positioning wall portion of the front housing 1. The positioning wall portion 15 is integrally projected at the tip of the entire circumference of the mounting wall portion 13 of the front housing 1 so as to contact the end surface 36 of the mounting leg portion 34 of the lens 3 to determine the mounting position of the lens 3. Set up. The thickness of the positioning wall portion 15 is constant over the entire periphery of the opening 10 of the front housing 1 and the mounting wall portion 13. In the figure, 16 is a locking projection of the front housing 1. The locking projection 16 is locked to the inner surface of the end of the mounting leg 34 of the lens 3 at a predetermined position of the tip of the positioning wall 15 of the front housing 1 so that the front housing 1 floats. To prevent this, install it integrally.

Since the lens mounting structure of the present invention in this embodiment has the above-described structure, the mounting leg portion 34 of the lens 3 is press-fitted into the mounting wall portion 13 of the opening 10 of the front housing 1. Fit the fitting convex portion 35 of the lens 3 into the fitting hole 14 of the front housing 1 and bring the end surface 36 of the mounting leg portion 34 of the lens 3 into contact with the positioning wall portion 15 of the front housing 1. Then, the mounting position of the lens 3 is determined, and the locking projection 16 of the front housing 1 is locked to the inner surface of the end of the mounting leg 34 of the lens 3. Then, the lens 3 can be attached to the opening 10 of the front housing 1. At this time, the length of the mounting leg portion 34 of the lens 3 is constant over the entire circumference, and the thickness of the positioning wall portion 15 of the front housing 1 is constant over the entire circumference. Even when viewed from the front of the lens 3, no blackish object can be seen in places on the edge of the lens 3, as shown in FIG. Therefore, the appearance is improved. Further, as shown in FIG. 4, the vertical surface on the front surface side of the fitting convex portion 35 of the lens 3 and the vertical surface on the front surface side of the fitting hole 14 of the front housing 1 are fitted and pressure-welded to each other. On the other hand, the end surface 36 of the mounting leg portion 34 of the lens 3 and the vertical surface on the front surface side of the positioning wall portion 15 of the front housing 1 are brought into contact pressure contact. As a result, the lens 3 can be firmly attached to the front housing 1. In this embodiment, the end surface 36 of the mounting leg portion 34 of the lens 3 and the vertical surface on the front side of the positioning wall portion 15 of the front housing 1 are directly brought into contact with each other. An interposition may be interposed between the end surface 36 of 34 and the vertical surface of the positioning wall portion 15, or on either or both of the end surface 36 of the mounting leg portion 34 and the vertical surface of the positioning wall portion 15. A small convex portion may be provided. Further, the horizontal surface of the locking convex portion 16 of the front housing 1 and the horizontal surface of the end portion of the mounting leg portion 34 of the lens 3 are locked. Therefore, it is possible to prevent the front housing 1 from rising above the lens 3. In this embodiment, the horizontal plane of the locking projection 16 of the front housing 1 and the horizontal plane of the end of the mounting leg 34 of the lens 3 are directly brought into contact with each other. An intervening substance may be interposed between the horizontal plane of 34 and the horizontal plane of the locking projection 16, or one or both of the horizontal plane of the mounting leg 34 and the horizontal plane of the locking projection 16 may be provided. Small convex portions may be provided. Although the high mount stop lamp has been described in the above embodiment, the present invention is not limited to this high mount stop lamp, and is also used for mounting vehicle lenses such as a vehicle decoration device such as a rear finisher. It can also be applied to structures. Further, the positions and the numbers of the fitting holes 14 of the front housing 1 and the locking projections 16 and the engagement projections 35 of the lens 3 are not particularly limited.

[0015]

[Effect of device]

 As is clear from the above, the lens mounting structure of the present invention has a good-looking appearance, allows the lens to be firmly mounted, and prevents the mounting body from floating.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a lens mounting structure according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a partial cross-sectional view of a main part.

FIG. 5 is a front view showing a conventional lens mounting structure.

6 is a sectional view taken along line VI-VI in FIG.

7 is a sectional view taken along line VII-VII in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Front side housing, 10 ... Opening part, 13 ... Mounting wall part, 14 ... Fitting hole, 15 ... Positioning wall part, 16 ... Locking convex part, 2 ... Rear surface side housing, 3 ... Lens, 31 ... Lamp room ,
34 ... Attachment leg part, 35 ... Fitting convex part, 36 ... End face, 4 ... Light source bulb, 5 ... Bulb holder, 6 ... Reflector.

Claims (1)

[Scope of utility model registration request] 1. A lens mounting structure for mounting a lens in an opening of a mounting body, comprising: a mounting leg portion provided on an entire peripheral edge of the lens and having a constant length; and an engaging convex portion provided on the mounting leg portion. A mounting wall portion provided on the entire peripheral edge of the opening of the mounting body so as to face the mounting leg portion of the lens; an engagement hole provided in the mounting wall portion, with which the engagement convex portion engages; A positioning wall that is provided at the tip of the entire circumference of the mounting wall and that abuts on the end surface of the mounting leg to determine the lens mounting position, and is provided on the positioning wall and locked to the end of the mounting leg. A lens mounting structure, comprising: a locking projection that prevents the mounting body from floating.