JPH0587710U - Shade mounting structure for automotive lighting - Google Patents

Abstract

(57) [Abstract] [Purpose] To improve the structure for attaching a shade that controls light distribution to a vehicle lamp so that it can be attached to a predetermined position with high accuracy, quickly and easily with a simple structure. To do. [Structure] The shade 6 is provided with mounting legs 6b. On the other hand, a mounting seat 7 having a positioning function is provided on the reflector 3. The leg 6b is fixed to the mounting seat 7 by the rivet 8. Since the legs 6b are positioned and fixed, the shade main body 6a is accurately fixed at a predetermined position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure created so that a light distribution control shade for a vehicle lamp can be easily and highly accurately mounted on a reflector.

[0002]

[Prior Art]

 FIG. 4 is a sectional view showing a conventional example of a vehicle lamp. A lens 2 is mounted so as to cover the front opening of the lamp housing 1. However, in the present invention, the designations of front and rear refer to the direction of light projection of the lamp and have no relation to the front and rear of the vehicle body on which the lamp is mounted. A reflector 3 and a light source bulb 4 are disposed in an equal room surrounded by the lamp housing 1 and the lens 2. For example, in the case of projecting a colored light flux like a fog lamp, a color cap 5 is provided to cover the light source bulb 4. The reflector 3 has a structure in which a standing wall portion (a surface parallel to the optical axis Z) 3b is continuously provided around a rotary parabolic mirror 3a. The light emitted from the light source bulb 4 as shown by the arrow a is reflected by the rotary parabolic mirror 3a of the reflector in parallel with the optical axis Z as shown by the arrow b, diffused right and left by the lens 2 and projected forward.

[0003]

[Problems to be solved by the device]

 The parallel light flux represented by the arrow b is spread left and right (in the direction perpendicular to the paper surface) by the lens 2 to form a desired light distribution pattern, but is not reflected by the reflector 3 as shown by the arrow c and is moved forward. The direct light is not controlled. Therefore, the direct light of the arrow c is not only ineffective to form a desired light distribution pattern, but also harmful. The shade 6 shown by an imaginary line is arranged so as to block the direct light of the arrow c to prevent the harmful effect of the direct light. However, a simple and easy-to-assemble mounting structure for highly accurately mounting the shade 6 at the position shown by the phantom line in FIG. 4 has not yet been developed. The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a simple and inexpensive structure capable of quickly and easily installing a shade at a predetermined position.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a shade with mounting legs and a reflector with a mounting seat. The above-mentioned mounting seat is formed in a shape that allows the legs to be positioned. In the present invention, the positioning means to restrain the movement in the directions of the three orthogonal axes and to restrain the rotation around the three orthogonal axes to determine a predetermined three-dimensional position. For example, when the mounting surface of the leg is square, the mounting seat may be a U-shaped protrusion or a rectangular recess. As a modification, a combination of ridges and protrusions is possible. This mounting seat is conveniently provided on the vertical wall of the reflector.

[0005]

[Action]

 According to the above configuration, since the legs of the shade are positioned with respect to the mounting seat of the reflector, the shade is fixed at a predetermined position quickly and easily with high accuracy.

[0006]

【Example】

FIG. 1 is a vertical cross-sectional view of an automotive lamp equipped with an embodiment of a shade mounting structure according to the present invention, and FIG. 2 is a front view thereof. A lens 2 is mounted so as to cover a front opening of the lamp housing 1, and a reflector 3 is provided in a lamp chamber surrounded by the lamp housing 1 and the lens 2. A light source bulb 4 is attached to the reflector 3, and a color cap (shown by a phantom line) 5 for covering the light source bulb 4 is provided if necessary. The shade 6 includes a main body 6a that covers the front side of the light source bulb 4, and legs 6b fixed to the main body 6a. On the other hand, a positioning attachment seat 7 that engages with the leg 6b is formed on the standing wall portion below the reflector 3. The vicinity of the shade leg 6b and the positioning attachment seat 7 is shown in FIG. This figure (A) is an exploded perspective view, and (B) is a perspective view of an assembled state. The mounting surface 6b ₁ of the shade leg 6b in this example is square. The positioning mounting seat 7 is composed of a U-shaped ridge formed by press-molding the reflector 3 and has a shape and dimensions that fit with the rectangular mounting surface 6b ₁ . When carrying out the present invention, the positioning attachment seat 7 is not limited to the U-shaped protrusion, but may be any shape as long as it can be engaged with the legs for shade attachment and positioned. Denoted at 8 is a rivet for fixing the shade leg 6b to the reflector 3. Since the shade leg is positioned with respect to the reflector by the above-mentioned configuration, any known means (for example, screws, caulking, gluing, etc.) can be applied to the means for fixing these two members. The position of the shade 6 is fixed as described above by using any fixing means, so that the shade 6 can be fixed to a predetermined position with high accuracy, quickly and easily.

[0007]

[Effect of the device]

 As described above, according to the shade mounting structure of the present invention, the shade can be mounted at a predetermined position quickly, easily and highly accurately with a simple and inexpensive structure.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an automotive lamp including an embodiment of a shade mounting structure according to the present invention.

FIG. 2 is a schematic front view in which a part of the automobile lamp including the above embodiment is cut away and drawn.

FIG. 3 is a perspective view showing a main part of the above embodiment, (A) showing a disassembled state, and (B) showing an assembled state.

FIG. 4 is a diagram showing a conventional example of a vehicle lamp, in which a light path is entered in a schematic vertical sectional view.

[Explanation of symbols]

1 ... Lamp housing, 2 ... Lens, 3 ... Reflector,
3a ... Rotating parabolic mirror, 3b ... Standing wall part, 4 ... Light source bulb,
5 ... Color cap, 6 ... Shade, 6a ... Shade body, 6b ... Shade leg, 7 ... Positioning mounting seat, 8 ... Rivet.

Claims (1)

[Scope of utility model registration request] 1. A vehicular lamp having a light source bulb and a reflector and having a shade for covering the front of the light source bulb to control light distribution, wherein the shade is provided with mounting legs. A shade mounting structure for a vehicle lamp, wherein a mounting seat for positioning the leg is formed on the reflector.