JPH0574988U - Car interior light - Google Patents

Abstract

(57) [Abstract] [Purpose] For example, by improving interior lamps for automobiles such as map lamps, etc., to improve compatibility of parts when applied to various types of automobiles, and to simplify the lens configuration, In addition, it gives the appearance of the internal structural parts that appear in the exterior appearance. A reflector 3, a socket 4 for mounting a light source bulb 5, and a reflector side bracket 7 fixed to the back of the reflector 3 constitute an assembly part unit, and a housing side corresponding to the reflector side bracket 7 is formed. Bracket 11 to lamp housing 1
Fix at 4. The brackets 7 and 11 are pivotally mounted by a mounting screw 12 so as to be rotatable relative to each other, and the rotational angle position is automatically adjusted by the engagement grooves 9a to 9d and the protrusion 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an interior light installed in the interior of an automobile, such as a map lamp, and more particularly, to an interior light unit that can be fitted to the interior of each type of automobile. The present invention relates to a vehicle interior light with improved compatibility.

[0002]

[Prior Art]

 FIG. 3 is a cross-sectional view showing a conventional example of a map lamp as an example of a vehicle interior light. This type of room light is constructed as described below because its projected light flux must have directivity. That is, a lamp housing 2 is fixed to a vehicle body (specifically, a ceiling portion of a vehicle compartment) 1 of an automobile, a reflector 3 is fixed to the lamp housing 2, and a socket 4 is provided near the center of the reflector 3. The light source bulb 5 is fixedly mounted and supported. The reflector 3 is formed in the shape of a paraboloid of revolution and reflects the light flux emitted from the light source bulb 5 as shown by arrows a and a'in parallel as shown by arrows b and b '. Then, a lens 6 is formed and attached to the opening of the lamp housing 2 in order to direct this parallel light beam (arrows b, b ') in a desired light projecting direction (arrows c, c').

[0003]

[Problems to be solved by the device]

 The position where the map lamp is mounted on the ceiling of the passenger compartment of an automobile differs depending on the type of the automobile. Then, the direction of projection of this map lamp must be directed to the hand of the person sitting in the driver's seat or the passenger seat. For this reason, map lamps are designed and manufactured according to the vehicle type, and there is no compatibility between different vehicle types. Forming a reflector dedicated to each vehicle model to a different lamp housing for each vehicle model and integrally fixing the reflectors increased the manufacturing cost and had a structural problem. Further, as shown in the conventional example of FIG. 3, since the light beams in the directions of the arrows b and b'are refracted in the directions of the arrows c and c ', the prism portion of the lens 6 must be made thick, which is difficult to manufacture. .. This is because when a thick prism is injection-molded with a synthetic resin material, a sink mark occurs and the prism is distorted from a desired shape. In addition, the components inside the lamp housing 2 appear through the lens 6, and the internal configuration is different for each model, so the appearance is not uniform and the commercial value is reduced. The present invention has been made in view of the above circumstances, and provides an interior lamp for an automobile in which the compatibility of parts between models is large, the lens configuration is simple, and the appearance of the internal components appearing in the exterior is uniform. The purpose is to provide.

[0004]

[Means for Solving the Problems]

 The basic principle of the present invention created to solve the above problems constitutes a lamp unit that is common to all vehicle types. As a concrete configuration based on the above principle, the interior lamp for an automobile according to the present invention has a bracket fixed to the back of a reflector equipped with a socket for a light source bulb, and a separate lamp housing fixed to the vehicle body. The brackets, and the two brackets are abutted against each other so that they can rotate relative to each other, and the two brackets are attached to the surfaces in contact with the mating brackets. It is characterized in that it is provided with irregularities for locking the relative rotation of the. However, in the present invention, the names of the front and the rear are referred to as the light projecting direction of the lamp and the opposite, respectively, and have no relation to the traveling direction of the vehicle equipped with this lamp.

[0005]

[Action]

 According to the above-mentioned means, the reflector, the socket and the light source bulb form a unit of a main component of the lamp, and this unit is rotatably supported by the bracket. Since the above-mentioned rotation is locked by the unevenness of the bracket, if the concave and convex are configured so as to be adapted to the relevant vehicle type (vehicle type of vehicle with symmetrical interior light equipment), the unit of each vehicle type Compatibility is obtained.

[0006]

【Example】

 FIG. 1 shows an embodiment of a vehicle interior light according to the present invention, and FIG. 1 (A) is an exploded perspective view of a main part. A socket 4 is mounted near the center of the inner surface of the reflector 3, and a light source bulb 5 is supported by the socket 4. A plate-shaped reflector-side bracket 7 is integrally connected and fixed to the back of the reflector 3, and the reflector 3, the light source bulb socket 4, the light source bulb 5 and the reflector-side bracket 7 form an assembly unit unit. Is formed. The bracket 7 on the reflector side is provided with a through hole 8 for axial support, and engaging grooves 9a to 9d are radially formed around the through hole 8. The reflector-side bracket 7 is superposed on a plate-shaped housing-side bracket 11 provided with a through hole 10 for a shaft support, and a nut 13 is screwed into a mounting screw 12 inserted through both the through holes 8 and 10. Be tightened. As shown in FIG. 1B, the housing side bracket 11 is fixed to a lamp housing 14, and the lamp housing 14 is attached to a ceiling 1 of a vehicle compartment of an automobile. A lens 15 is attached to cover the front opening of the lamp housing 14. The housing side bracket 11 is provided with a protrusion 16 that engages with any one of the engagement grooves 9a to 9d. When the protrusion 16 is engaged with the engagement groove 9d, a mounting screw is attached. The rotation angle position of the assembly unit unit (consisting of the reflector 3, the socket 4, the light source bulb 5 and the bracket 7) centering on 12 is restricted to the state shown in FIG. 1 (B). In the present embodiment, the reflector side bracket 7 is provided with a plurality of engaging grooves 9a to 9d and the housing side bracket 11 is provided with one engaging projection. However, when the present invention is implemented, the reflector side bracket is projected. It is also possible to provide the raised portion and to provide an engaging groove in the housing side bracket. In addition, an engaging groove and a protrusion may be provided on each of the reflector-side bracket and the housing-side bracket. Further, the number of engaging grooves and the number of protrusions provided on both brackets can be set arbitrarily.

Although FIG. 2 shows an embodiment different from the above-mentioned embodiment, an assembly unit composed of the reflector 3, the socket 4, the light source bulb 5 and the reflector side bracket 7 is shown in FIG. 1 (B). It is the same assembly part unit as in an Example. The housing side bracket 11 of this example is a similar member corresponding to the housing side bracket 11 in the above-described embodiment (FIG. 1 (B)), but the housing side bracket 11 fixed to the lamp housing 18 of this example. The projection 16 'provided on the ′ is arranged so that the optical axis of the reflector 3 is directed in a desired direction (arrow D). That is, when the reflector 3 faces the desired direction (arrow D), it engages with any one of the engagement grooves 9a to 9d (see FIG. 1A) provided in the reflector-side bracket 7, A protrusion 16 'is provided. In this way, the same assembly unit (reflector 3, socket 4, light source bulb 5 and reflector-side bracket 7) is made compatible, and the mounting angle (for example, as shown in FIG. The angle θ) is automatically adjusted and can be adapted to various vehicle types. Further, in both the embodiment of FIG. 1 (B) and the embodiment of FIG. 2, the reflector 3 is automatically mounted in a desired direction, so that the lens 15 in FIG. The lens 17 in 2 does not need to change the direction of the passing light beam. Therefore, it is not necessary to construct a thick lens like the lens 6 of the conventional example shown in FIG. 3, the lens is lightweight and inexpensive, and there is no fear of sink marks due to the thick thickness. Further, the internal structure appearing through the lens 15 in the embodiment of FIG. 1 (B) and the internal structure appearing through the lens 17 in the embodiment of FIG. 2 are similar in appearance and have a uniform appearance. High commercial value.

[0008]

[Effect of the device]

 As described above, the interior light for an automobile according to the present invention has a large compatibility with the main constituent parts when it is applied to each type of automobile. Moreover, the lens construction is simple and sufficient, and the appearance is uniform, and the product value is high.

[Brief description of drawings]

FIG. 1A is an exploded perspective view of an essential part showing one embodiment of the present invention, and FIG. 1B is a vertical sectional view of the same.

FIG. 2 is a cross-sectional view of an embodiment different from the above using the same assembly part unit as in the above embodiment.

FIG. 3 is a cross-sectional view showing a conventional vehicle interior light, illustrating a structure and problems.

[Explanation of symbols]

1 ... Ceiling of automobile compartment, 2 ... Lamp housing, 3 ...
Reflector, 4 ... Socket, 5 ... Light source bulb, 6 ... Lens, 7 ... Reflector side bracket, 8 ... Through hole, 9a-9
d ... Engagement groove, 10 ... Through hole, 11 ... Housing side bracket, 12 ... Mounting screw, 13 ... Nut, 14 ... Lamp housing, 15 ... Lens, 16, 16 '... Protrusion, 17 ... Lens, 18 ... Lamp housing ..

Claims (1)

[Scope of utility model registration request] 1. A bracket is fixed to the back of a reflector equipped with a socket for a light source bulb, a bracket separate from the above is fixed to a lamp housing fixed to a vehicle body, and both brackets are opposed to each other. Both sides of the bracket are attached so as to be rotatable relative to each other, and unevenness for locking the relative rotation of the both brackets is provided on the surface where each of the brackets is in contact with the mating bracket. A characteristic interior light for automobiles.