JPH043229Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a lighting device that is mainly installed in instruments such as automobiles and motorcycles.

[Conventional technology]

This type of lighting device illuminates display parts such as display boards and dials by lighting lamps attached to the housing. Light adjustment plates are arranged corresponding to areas such as display boards and dials that are likely to become locally bright due to the illumination light source of the illumination lamp, and the light adjustment plates are configured to illuminate the display section almost uniformly. are doing.

As a lighting device in which the light adjustment plate that illuminates the display section almost uniformly can be easily fixed to the housing, the applicant of the present invention has previously filed an application filed in 1983.
As disclosed in Publication No. 65404, a lamp socket with an illumination light attached is attached to a mounting hole formed in the housing, a guide is integrally installed in the housing, and the insertion guide is placed above the illumination light. The light adjusting plate is attached and fixed by elastically fitting an insertion piece vertically disposed on the light adjusting plate disposed on the light adjusting plate.

[Problem that the invention attempts to solve]

By the way, in recent years, while vehicle models have become more diverse, in order to simplify the manufacturing process, even if the models are different, common parts are used as much as possible, and the assembly process of instruments is standardized to increase work efficiency. There is. For example, there are instruments that differ only in design, such as the shape of the dial or the form of display printed on the dial, but the dial or the instrument itself is changed and other components, especially the housing, are used in common. In some cases, it is formed so that it can be done.
At this time, for example, if only the dial that makes up the display has changed, the lighting effect on the dial can be adjusted by changing the mounting direction of the light adjustment plate depending on the shape of the dial and the position of the display. I try to do that.

By the way, in the conventional configuration, the shape of the insertion guide is approximately rectangular, and the mounting position of the light adjustment plate is fixed, so it is necessary to form a housing for each model.

[Means for solving problems]

The feature of this invention is that a light adjustment plate is arranged above the illumination lamp attached to the housing, and when the illumination lamp is turned on, the display part such as the display board or dial plate is illuminated through the light adjustment plate etc. In the device, a cylindrical insertion guide is provided upright in the housing with the illumination light position as the axis substantially centered, and an insertion piece is formed on the light adjustment plate that is vertically disposed on the light source adjustment plate and engages with the insertion guide. In addition, locking portions are formed at both ends of the insertion piece and approximately in the middle of the insertion piece to prevent the insertion piece from falling down.

〔Example〕

Figures 1 and 2 show a first embodiment of this invention, in which a lamp socket 4 with an illuminating lamp 3 is installed in a mounting hole 2 formed in a housing 1, and a light adjustment device is installed above the illuminating lamp 3. A light adjustment plate 5 is arranged to adjust the irradiation light beam of the illumination lamp 3 so that a display portion such as a display board or a dial 6 can be illuminated almost uniformly.

Further, a cylindrical insertion guide 7 consisting of double rising walls 7A and 7B is integrally formed in the housing 1 and protrudes from the outer peripheral edge of the mounting hole 2, with the mounting hole 2 as its axis. This insertion guide 7 is provided with an insertion piece 8 that is vertically disposed on the light adjustment plate 5 and that is fitted into the insertion guide 7.
Locking portions 9, 10, and 11 for preventing falling are formed at both ends of the insert piece 8 and approximately in the middle of the insert piece 8, respectively.

In this case, the locking parts 9 and 10 provided on both ends of the insertion piece 8 are locked to the upper end surface of the insertion guide 7, and the light adjusting plate 5 is connected to the mounting hole 2 provided in the housing 1.
A locking portion 11 provided approximately in the middle of the insertion piece 8 is locked to the upper end surface of the insertion guide 7 to prevent the light adjustment plate 5 from falling to the side in the mounting hole 2 provided in the housing 1. This is to prevent falling to the opposite side.

With the above configuration, the light adjustment plate 5 is attached and held on the housing 1 side by fitting the insertion piece 8 into the cylindrical insertion guide 7. At this time, the locking parts 9, 10, 11 provided on the insertion piece 8
is brought into contact with the upper end surface portion of the rising wall 7B of the insertion guide 7, so that the position of the light adjustment plate 5 itself is regulated and its collapse is prevented.

In addition, since the insertion guide 7 is a cylindrical body whose axis is approximately centered on the mounting hole 2, it is possible to arbitrarily select the attachment position of the insertion piece 8 along the circumference of the insertion guide 7, and thereby the light adjustment plate 5
It is possible to appropriately set the mounting position and direction of the illumination lamp 3, and it is also possible to easily adjust the irradiation light beam from the illumination lamp 3.

Figure 3 shows a second embodiment of this invention.
Here, a configuration is shown in which a part of the insertion guide 27 is also used by a rising wall 27A forming the mounting hole 2, and a concentric circle is formed on the outer edge of the cylindrical rising wall 27A, which also serves as the mounting hole 2 part. Two rising walls 27B are erected, and a gap between the two rising walls 27A and 27B forms an insertion guide 27 into which the insertion piece 28 of the light adjusting plate 25 is fitted.

Further, in this case, locking portions 29 and 30 are provided protruding from both ends of the insertion piece 28 provided on the light adjustment plate 25, and two locking portions 31 and 31A are formed approximately in the middle of the insertion piece 28. has been done.

Therefore, the locking parts 29 and 30 provided at both ends of the insertion piece 28 are locked to the upper end surface of the insertion guide 27, and the locking parts 31 and 31A provided approximately in the middle of the insertion piece 28 are locked to the upper end surface of the insertion guide 27. Since it is locked to the upper end surface of the light adjustment plate 27, the light adjustment plate 25 is prevented from falling down.

Although not shown, in order to increase the strength of attachment between the insertion guide of the housing and the insertion piece of the light adjustment plate, the attachment strength may be increased by applying an adhesive.

[Effect of idea]

As described in detail above, it is possible to prevent the light adjustment plate from collapsing and to simplify the assembly work, and the mounting position of the light adjustment plate can also be arbitrarily selected, which is highly effective.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the first embodiment of the present invention, Fig. 2 is an exploded perspective view showing the main parts of Fig. 1, and Fig. 3 is an exploded perspective view of the main parts showing the second embodiment of the invention. It is a diagram. Housing...1, Mounting hole...2, Lighting light...
3.Lamp socket...4.Light adjusting plate...5,2
5, Dial board...6, Insertion guide...7,2
7, Insert piece...8,28, Locking part...9,1
0, 11, 29, 30, 31, 31A.

Claims (1)

[Scope of utility model registration request] In an illumination device in which a light adjustment plate is disposed above the illumination lamp attached to the housing, and a display part such as a display board or a dial is illuminated through the light adjustment plate when the illumination lamp is turned on, the above-mentioned illumination lamp A cylindrical insertion guide is erected on the housing with the position approximately centered on the axis, and an insertion piece is formed on the light adjustment plate that is vertically disposed on the light adjustment plate and engages with the insertion guide, and both ends of the insertion piece are formed on the light adjustment plate. A lighting device characterized in that locking portions for preventing falling are formed on the sides and approximately in the middle of the insertion piece.