JPH0245900Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a bulb chamber for a display panel illumination light.

(Prior art) In a display panel for a vehicle sound system or an audio device, light from an illumination lamp placed at the end of the light guide plate is transmitted through a light guide plate such as an acrylic resin plate arranged on the back side of the display surface. A structure is used to illuminate and illuminate a predetermined display section. Conventionally, in this type of display panel, a bulb chamber 51 in which an illumination light 55 is fixedly installed is shown in FIG. Under cut (arrow
), and if it must be molded separately, there is a structure 52 that uses the elasticity of the molded product to fit together.
A structure in which the valve chamber 51 is fixed to the body 50 by screws 54 as shown in FIG. 8 has been adopted.

(Problems to be Solved by the Invention) However, in the above-mentioned conventional structures, the valve chamber 51 in the one shown in FIG. The one shown in Fig. 8 requires post-work such as heat caulking or screw-fastening work, and has problems such as a rise in production costs.

The present invention was devised in view of the above-mentioned problems, and aims to provide a valve chamber structure that allows a separately formed valve chamber to be reliably integrated with a body without requiring post-work. It is.

(Means for Solving the Problems) The valve chamber according to the present invention has a key structure of the valve chamber that is fitted with the body by separately forming the mounting member for the illumination light that is attached to the valve chamber. In a structure in which the illumination lamp is inserted and fitted from the back side of the display panel, a fitting structure is formed in which the valve chamber is fitted from the side of the body, and the corresponding position of the back plate of the valve chamber and the back plate of the body is formed. The mounting member for the lighting lamp is fitted across the mounting hole drilled in the mounting hole.

(Function) In other words, the valve chamber that is fitted from the side of the body will fall off to the side, but the mounting member of the illumination light fixed to the back plate of the valve chamber will be attached to the back plate of the body. It engages with the fitting hole drilled in the hole in the radial direction of the hole and prevents it from being pulled out.

(Example) Hereinafter, an example of a bulb chamber for a display panel illumination light according to the present invention will be described with reference to the drawings.

Figures 1 and 2 show a first embodiment, in which 1 is the body of a display panel molded from a non-transparent synthetic resin, which is attached to the front of a vehicle acoustic system a, etc. . A light guide plate 2 made of transparent acrylic resin or the like is arranged in parallel on the front surface of the body 1, and a front lens plate 3 made of transparent synthetic resin is arranged and fixed on the front side of the light guide plate 2.
In place of the non-transparent covering material 4, parts other than the display section 5 are covered. Further, a fitting step 6 which is opened laterally is formed on the side of the body 1, and the end of the light guide plate 2 is positioned toward the fitting step 6. A separately molded valve chamber 7 made of a non-transparent synthetic resin is inserted into the valve chamber 6 to form a valve chamber 8. The valve chamber 7 is
A front plate part 9 having an insertion end 9a inserted along the rear surface of the end of the front lens plate 3 and a back plate 1 of the fitting stepped part 6
The cross section is formed into a substantially U-shape by a back plate part 11 inserted along the line 0 and a side plate part 12 that connects the two. A through hole 15 is bored in the back plate 10 in correspondence with the circular fitting hole 14 of the figure. Further, at the end of the back plate portion 11 of the valve chamber 7,
A plurality of locking ends 16 are provided protruding in the direction of the plate, and an engaging hole 17 is formed in the fitting step 6 corresponding to the locking ends 16. An engagement structure is configured in which both engage.

When attaching the illumination lamp 19 to the display panel having the above configuration, first fit the valve chamber 7 into the fitting step 6 of the body 1 from the side thereof, and then engage the engagement structure 18. , the valve chamber 7
An illumination light bulb mount member 13 with an illumination light 19 attached thereto is inserted and fitted into the circular hole 14 of the back plate 10 through the through hole 15. The illumination light 19 is attached to the end portion 2a of the light guide plate 2. To position.

When the illumination lamp 19 is turned on in this state, the light beam input from the end 2a of the light guide plate 2 advances into the entire plate surface along the plate thickness, and the light guide plate 2 has a diffusion structure such as a V-notch formed in the light guide plate 2. The light is diffused and diffused by the object 2b, and illuminates the display section 5 of the front lens plate 3 from the back side.

Next, FIGS. 3 and 4 show another engagement structure 18a showing a second embodiment of the present invention, and only the parts different in structure from the first embodiment will be described.

In this embodiment, a locking end 16a is provided perpendicularly to the end of the back plate 11 of the valve chamber 7, and an engagement hole 17a is bored in the back plate 10 of the body 1. and the engagement structure 18a
The structure is such that the body 1 and the valve chamber 7 are engaged by elasticity of both members.

Further, FIG. 5 shows another engaging structure 18b showing a third embodiment of the present invention, and only the parts different in structure from the first embodiment will be described.

In this embodiment, locking ends 16b, 16b extending outward from the fitting stepped portion 6 of the body 1 are provided on both left and right sides of the side plate portion 12 of the valve chamber 7, and the locking ends 16b are provided so as to protrude toward the body 1 side. Engagement edge 17 of screw boss, etc.
b, 17b from the side, locking end 16
b, 16b have a structure in which they are engaged by elasticity.

According to the bulb chamber for a display panel illumination light having the above configuration, when assembling it, it can be fitted into the fitting step 6 from the side of the body 1, engaging the engagement structure, and being assembled in one-touch. However, since the bulb mount member 13 for the illuminating light is installed in a state that crosses the body 1 after assembly, the valve chamber 7 will not come off from the body 1.

(Effect of the invention) The bulb chamber for a display panel illumination light according to the invention can be used in a display panel with a design in which the bulb chamber is undercut, without requiring post-processing. It has the feature that it can be reliably integrated into the body with one touch, and the practical effects after implementation of this invention are extremely large.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of a main part of a display panel showing a first embodiment of a bulb chamber for a display panel illumination light according to the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG. The figure is a plan sectional view of the main part of the display panel showing the second embodiment, and FIG. 4 is the B--B in FIG.
A sectional view taken along the line B, FIG. 5 is a plan view of the main part showing the third embodiment, and FIGS. 6 to 8 are plan sectional views showing the conventional structure, respectively. DESCRIPTION OF SYMBOLS 1... Body, 2... Light guide plate, 3... Surface lens plate, 6... Fitting step part, 7... Valve chamber, 13... Valve mount member, 14... Circular hole, 15... Transparent Hole, 16, 16a, 16b...Locking end, 17, 17a...Engagement hole, 17b...Engagement edge, 18, 18a, 18b...Engagement structure, 19...
...Illumination light.

Claims (1)

[Scope of utility model registration request] In a display panel, an illumination light is positioned at the end of a light guide plate arranged in parallel on the front side of the body, and illuminates a desired position of the display screen arranged in parallel on the front side of the light guide plate from the back side thereof. A fitting stepped portion is formed that opens to the side, and the end portion of the light guide plate is positioned in the fitting stepped portion, and the end portion of the light guide plate is fitted from the side to the fitting stepped portion to form a side plate portion of the body. The circular hole for fixing the illumination lamp, which is made in the back plate of the member whose cross section is approximately U-shaped, is made to correspond to the through hole made in the back plate of the fitting step, and the fitting 1. A bulb chamber for a display panel illumination light, characterized in that the mount member to which the illumination light is attached can be fitted into the circular hole through the through hole after the joint part is fitted.