JPH0734511U - Vehicle lighting - Google Patents

Abstract

(57) [Summary] [Purpose] The overall cost of the lamp will not rise significantly,
Provided is a vehicle lighting device capable of preventing a short circuit of a bulb. [Constitution] A valve holding portion 3c for holding a bulb 2 is formed in a reflector 3, and a housing 6 covers the reflector 3 together with a leg portion 4a of a lens 4 which closes a front opening 3a of the reflector 3 so that the valve holding portion 3c is covered. The reflector 3 is formed by the water drop blocking portion 3d integrally formed on the outer wall surface.
Water droplets that have propagated on the outer wall surface of the valve are blocked at a midway portion of the valve holding portion 3c.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicular lamp in which a bulb is held by a bulb holding portion formed in a reflector, and the reflector is covered with a housing together with a leg portion of a lens that closes a front opening of the reflector.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, for example, some vehicular lamps such as fog lamps have a bulb holding portion formed in a reflector that holds a bulb, and a reflector is covered with a housing together with a leg portion of a lens that closes a front opening of the reflector.

[0003]

[Problems to be solved by the device]

 By the way, in the vehicular lamp configured as described above, unless the airtightness between the outside and the space formed by the housing and the reflector is ensured, water droplets intrude from this space and the outside of the reflector. There was a problem that the valve was short-circuited due to water droplets flowing along the wall to the valve held by the reflector.

Therefore, it is conceivable to provide a seal member between the outside and the space, but not only the number of parts is increased, but also the assembling work takes time, which significantly increases the cost of the entire lamp. New problems arise.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a vehicular lamp capable of preventing a short circuit of a bulb without significantly increasing the cost of the entire lamp. To do.

[0006]

[Means for Solving the Problems]

 In order to achieve the object, the present invention provides a vehicle in which a valve is held by a valve holding portion formed on a reflector, and the reflector is covered with a housing together with a leg portion of a lens that closes a front opening of the reflector. In the lighting device, a gist is that a water droplet blocking portion that blocks a water droplet that has propagated along the outer wall surface of the reflector at an intermediate portion of the valve holding portion is integrally formed on the outer wall surface of the valve holding portion.

[0007]

[Action]

 In such a configuration, the bulb holding portion that holds the bulb is formed on the reflector, and the housing covers the reflector together with the leg portion of the lens that closes the front opening of the reflector, and is integrated with the outer wall surface of the bulb holding portion. The water drop blocking portion formed blocks the water droplets that have propagated along the outer wall surface of the reflector in the middle of the valve holding portion.

[0008]

【Example】

 Next, an embodiment of the vehicular lamp according to the present invention will be described with reference to FIGS. 1 to 11 by applying it to a fog lamp.

1 to 5, a vehicular lamp 1 includes a reflector 3 holding a bulb 2, a lens 4 held by the reflector 3 so as to close a front opening 3 a of the reflector 3, and a bulb 2. It includes a shade 5 provided in the front and a housing 6 covering the leg 4a of the lens 4 to the rear of the reflector 3.

The rear portion of the housing 6 is detachably fixed to the bracket 7. A packing 8 is provided between the outer flange 3b formed on the outer wall of the reflector 3 and the end surface 4b of the lens 4 along the opening edge of the front opening 3a. Water droplets are prevented from entering the interior of the lamp chamber 9 that is formed in Step 1. The packing 8 also plays the role of an adhesive for holding the lens 4 on the reflector 3.

At the rear portion of the reflector 3, as shown in FIGS. 6A and 6B, the optical axis P1 of the bulb 2 is slightly different from the axis P2 orthogonal to the edge of the front opening 3a (for example, 3 °) A cylindrical valve holding portion 3c for holding the valve 2 in a tilted state is formed so as to project rearward.

As shown in FIGS. 7 (A) and 7 (B), a water drop blocking portion 3d is integrally provided on the outer wall surface of the valve holding portion 3c near the rear portion so as to protrude from the housing 6. It is set so that invading water droplets will not be transmitted to the socket 2a of the valve 2 (see FIG. 1). The water drop blocking portion 3d may be a groove instead of a protrusion.

The surface of the shade 5 that blocks the light beam that directly travels from the bulb 2 to the lens 4 (the surface that faces the lens 4 in FIG. 1) is similar to the reflective film deposited on the reflective surfaces 3e and 3e of the reflector 3. The reflective coating of is deposited. In addition, as shown in FIGS. 1, 5, 8 and 9A to 9C, a ridge line R having an arcuate shape facing the boundary portion of the reflecting surfaces 3e, 3e is opposed to a ridge line R parallel to the ridge line R. The surface portions 5a, 5a of the shade 5 facing the edge portion are formed in an object-shaped umbrella shape which is curved outwards along the reflecting surfaces 3e, 3e of the reflector 3 and is expanded rearward. Further, the opposing edge portions 5b, 5b intersecting the ridgeline R of the shade 5 extend to the edge portion of the front opening 3a. Flat flanges 5c and 5c are provided on the opposite edges 5b and 5b so as to project therefrom.

As shown in FIG. 10, the flanges 5c and 5c are sandwiched between the reflector 3 and the lens 4 while being positioned in the shade holding grooves 3f and 3f formed in the reflector 3, and the shade 5 is held by the sandwiching. Is fixed.

Therefore, in the shade 5, the surface portions 5a, 5a for covering the tip of the bulb 2 are shaped so as to follow the reflecting surfaces 3e, 3e of the reflector 3 as a whole, and the opposite edges 5b, 5b are formed in the front opening 3a. Since it is extended to the inside, when you see the interior of the lamp room through the lens 4, it looks good with a sense of unity that there is no shade 2 as well as the bulb 2. ing. Moreover, since no screws or the like for fixing are required, not only can the number of parts and the work man-hours for tightening the screws be reduced, but also the screws cannot be seen from the outside, resulting in a better appearance. It is possible to improve.

The housing 6 includes a front housing 10 and a rear housing 11, and the front and rear housings 10 and 11 are combined by a pair of left and right screws 12 and 12. The inner circumference of the front housing 10 is determined by this combined state. The leg 4a of the lens 4 is press-fitted into the surface, and the reflector 3 and the lens 4 are held by the housing 6.

Recesses 13, 14, 15 (see FIG. 5) are formed in the rear portion of the rear housing 11. Further, the recess 14 and the recess 15 are partitioned by a flange 11a which is integral with the rear housing 11. A screw hole 11b is formed in the flange 11a. Further, the rear housing 11 is fitted with a grommet 17 which holds wiring cords 16 for supplying power to the valve 2. Moreover, the outer wall surface of the rear housing 11 is provided with multi-striped collars 18, 18 ... In order to prevent water droplets from being guided along the outer wall surface to the grommet 17.

As shown in FIG. 3, the recess 13 is formed by an upright wall portion 11c having a circular arc shape at the front and opening rearward. Like the recess 13, the recess 14 is also formed by an upright wall portion 11d that has an arcuate shape at the front and opens rearward. Further, a projection 11e is provided on an outer wall surface which is a bottom wall of the recess 13 of the rear housing 11.

As shown in FIGS. 11A to 11C, the bracket 7 has a substantially U shape having wall surfaces 7a and 7b facing each other on the left and right sides thereof. Further, the tips of the wall surfaces 7a and 7b are arcuate along the standing wall portions 11c and 11d of the recesses 13 and 14, respectively. Further, the wall surface 7a is formed with a screw hole 7c which is screwed with a screw 19 for mounting the bracket 7 to the rear housing 11, and is coaxial with the screw hole 11b, and the wall surface 7b is engaged with the protrusion 11e. Are formed. The holes 7c and 7d are formed coaxially.

In such a configuration, first, the lens 3 is held by the reflector 3 via the packing 8 with the projections 5c, 5c of the shade 5 being sandwiched between the reflector 3 and the lens 4.

Next, the rear portion of the reflector 3 is inserted into the rear housing 11 with the valve 2 held by the reflector 3, and the wiring cords 16 and 16 are held by the rear housing via the grommets 17.

Further, from this state, the front housing 10 is inserted from the front of the lens 4 to hold the lens 4 integrally with the reflector 3, and the front housing 10 is fixed to the rear housing 11 with screws 12 and 12. Assemble the lamp body.

Then, after the projection 11e is engaged with the engagement hole 7d so that the wall surface 7a is located in the recess 14, the screw holes 7c and 11b are aligned and the bracket 7 is attached to the rear housing 11 with the screw 19. To do.

When the vehicle lighting device 1 is mounted on a vehicle body (not shown), the bracket 7 is mounted on the vehicle body. At this time, the main body of the lamp can be rotated about the screw 19 and the protrusion 11e by the shape of the tips of the wall surfaces 7a and 7b of the bracket 7 and the shapes of the standing wall portions 11c and 11d of the recesses 13 and 14, respectively. It is possible to adjust the vertical direction of the illumination light.

[0025]

[Effect of device]

 As described above, in the vehicular lamp of the present invention, the water drop shutoff portion that shuts off the water droplets transmitted through the outer wall surface of the reflector at a middle portion of the valve holding portion is integrally formed on the outer wall surface of the valve holding portion. By doing so, it is possible to prevent a short circuit of the bulb without significantly increasing the cost of the entire lamp.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view of a main part of a vehicle lamp of the present invention.

FIG. 2 is likewise a plan view of the lamp body.

FIG. 3 is likewise a side view of the lamp body.

FIG. 4 is likewise a front view of the lamp body with the lens removed.

FIG. 5 is likewise a rear view of the lamp body.

[FIG. 6] Similarly, (A) is a horizontal sectional view of the reflector,
(B) is a front view of the reflector.

[FIG. 7] Similarly, (A) is a side view of the reflector,
(B) is a longitudinal sectional view of the reflector.

FIG. 8 is a sectional view of the waist showing the relationship between the shade and the reflector.

9A is a front view of the shade, FIG. 9B is a side view of the shade, and FIG. 9C is a bottom view of the shade.

FIG. 10 is likewise an enlarged cross-sectional view of a main part with a shade attached.

11A is a side view of one side of the bracket, FIG. 11B is a plan view of the bracket, and FIG. 11C is a side view of the other side of the bracket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Vehicle lamp 2 ... Bulb 3 ... Reflector (bulb holder) 3a ... Front opening 3c ... Bulb holding portion 3d ... Water drop blocking portion 4 ... Lens 6 ... Housing

Claims (1)

[Scope of utility model registration request] 1. A vehicular lamp in which a bulb is held by a bulb holding portion formed in a reflector, and the reflector is covered with a housing together with a leg portion of a lens that closes a front opening of the reflector, the exterior of the reflector. The vehicular lamp is characterized in that a water drop blocking part for blocking water drops transmitted along a wall surface at an intermediate part of the valve holding part is integrally formed on an outer wall surface of the valve holding part.