JPH08164770A - Meter unit - Google Patents

Abstract

PURPOSE: To improve a working property for assembling an inner apparatus such as a speedometer to a meter case. CONSTITUTION: This meter unit is equipped with a driving part 23 of a meter, a dial 17 for displaying, and a light guiding plate 19 being integrally engaged on the back of this dial 17 and having a positioning hole 25 to be fitted in a locating pin 27 of a meter case 1 in a peripheral edge, and two exposed parts 29a and 29b exposing the positioning hole 25 are installed in the dial 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a meter device such as an automobile meter cluster.

[0002]

2. Description of the Related Art A conventional meter device of this type is shown in FIG. 4, for example. That is, this meter device comprises a meter case 1, an internal unit 3, a dial plate 5, a windshield 7, and a substrate 9.

The internal unit 3 is, for example, a speedometer 11
And a tachometer 13 and a gauge meter 15,
The meter case 1 is assembled so as to be positioned at a predetermined position. Further, the dial plate 5, the windshield 7, and the substrate 9 are further attached to the meter case 1, respectively.

Assembling of the inner unit 3 to the meter case 1 is shown by a speedometer 11 as a typical example.
It is as shown in FIGS. That is, the speedometer 11 has a dial 17 for displaying the meter and a dial 17
Prism 19 as a light guide plate integrally bonded to the back of the
And a pointer 21 positioned and assembled to the prism 19.
Drive mechanism 23. The dial plate 17 and the prism 19 are integrally joined beforehand with a double-sided tape or the like. The prism 19 is provided with positioning holes 25 diagonally to the upper right and diagonally to the lower left when viewed from the front. On the other hand, a positioning pin 27 is projectingly provided on the meter case 1. The electrical connection between the drive mechanism 23 and the substrate 9 is omitted in the figure.

Then, when assembling, the positioning pin 27 is used.
The positioning hole 25 of the prism 19 to the positioning pin 2
7 is to be fitted. As a result, the speedometer 11 is accurately positioned and attached to the meter case 1, and accurate assembly can be performed.

[0006]

However, with the above-mentioned structure, the workability may be impaired remarkably, although the assembly can be performed properly. That is, the positioning hole 25 provided in the prism 19 is hidden behind the dial 17 as shown in FIG. 6, and when the speedometer 11 is assembled to the meter case 1, the operator confirms the positioning hole 25 of the prism 19. It was impossible to work while. For this reason, considerable skill is required for the assembling work, and the workability is significantly impaired.

In order to solve such a problem, it is conceivable that the portion of the positioning hole 25 of the prism 19 is projected from the peripheral portion of the dial 17 as shown in FIG. According to this structure, the operator can attach the speedometer 11 and the like to the meter case 1 while checking the positioning hole 25, so that the workability is improved. However, the speedometer 11 becomes large by the amount of the positioning hole 25 of the prism 19 protruding from the dial plate 17, making it difficult to assemble the speedometer 11 into the meter case 1 whose space is extremely limited. There was a fear that the wearability would deteriorate.

[0008] Therefore, an object of the present invention is to provide a meter device which has a good assembling property of the inner unit to the meter case and does not require any skill in working.

[0009]

In order to solve the above-mentioned problems, the invention of claim 1 is such that the meter drive portion 23, the dial for displaying the meter, and the back of the dial are integrally joined. A light guide plate having a positioning hole that fits with a positioning pin of the meter case is provided on a peripheral edge portion, and the dial plate is provided with an exposed portion that exposes the positioning hole.

A second aspect of the present invention is the meter device according to the first aspect, wherein the exposed portion is a notch provided in a peripheral portion of the dial.

A third aspect of the present invention is the meter device according to the first aspect, wherein the exposed portion is a transparent portion provided on a peripheral portion of the dial.

A fourth aspect of the present invention is the meter device according to the first aspect, wherein the exposed portion is a through hole provided in a peripheral portion of the dial.

A fifth aspect of the present invention is the meter device according to any one of the first to fourth aspects, wherein the exposed portion is provided in an area for writing a color-coded symbol or the like on a dial. To do.

[0014]

According to the invention of claim 1 of the above means, it is possible to fit the positioning pin of the meter case while checking the positioning hole of the light guide plate by the exposed portion provided on the dial plate.

According to the invention of claim 2, in addition to the operation of the invention of claim 1, the positioning pin of the light guide plate is fitted into the positioning pin of the meter case while confirming the positioning hole of the light guide plate from the notch provided in the peripheral portion of the dial plate. be able to.

According to the invention of claim 3, in addition to the operation of the invention of claim 1, it is possible to fit the positioning pin of the meter case while checking the positioning hole by the transparent portion provided on the peripheral portion of the dial.

According to the invention of claim 4, in addition to the effect of the invention of claim 1, it is possible to fit the positioning pin of the meter case while checking the positioning hole by the through hole provided in the peripheral portion of the dial.

According to the invention of claim 5, in addition to the operation of the invention of claim 1, the exposed portion can be provided in an area for writing a color-coded symbol on the dial.

[0019]

Embodiments of the present invention will be described below. In addition,
The same components as those in the above configuration will be described with the same reference numerals,
Moreover, the duplicated description is omitted.

1, FIG. 2, and FIG. 3 relate to an embodiment of the present invention. FIG. 1 is a front view of a speedometer 11 which is an internal unit, and FIG. 2 shows a relationship between the speedometer 11 and a meter case 1. The perspective view shown in FIG. 3 is an enlarged cross-sectional view of the main part of the speedometer 11 fitted and attached to the meter case 1.

First, the speedometer 11 is also shown as a representative of the internal unit in one embodiment of the present invention. However, tachometers and gauge meters other than the speedometer 11 have the same mounting structure.

In the speedometer 11, similarly to the above structure, the dial plate 17 and the prism 19 which is the light guide plate are integrally joined beforehand with a double-sided tape or the like, and the driving portion 23 of the pointer 21 is positioned on the prism 19. Installed.

Particularly in the embodiment of the present invention, the exposed portions 29a, 29b for exposing the positioning hole 25 in the dial plate 17 are provided.
Is provided. The exposed portions 29a and 29b are formed by notches in this embodiment. Therefore, the exposed portion 29
a, 29b from the surface of the dial 17 to the positioning hole 2
5 and the positioning pin 27 can be confirmed.

One of the exposed portions 29a is provided on the character 17 formed on the dial 17 and outside the marking area 17a. This area 17a is a portion for entering, for example, a color code, a product number (number), a bar code and the like. The exposed portion 29a is provided using such an area 17a. Since the fitting structure of the positioning hole 25 with respect to the positioning pin 27 is the same for both exposed portions 29a and 29b, a cross section of the lower exposed portion 29b, that is, a cross section taken along the line AA of FIG. 1 is shown. 3 will be described.

That is, as shown in this section, the prism 19
The positioning hole 25 of is the positioning pin 27 of the meter case 1.
And the exposed portion 29b is located at the position of the positioning hole 25 and the positioning pin 27.

Therefore, when assembling, the exposed portion 29
By checking the positioning holes 25 and the positioning pins 27 from a and 29b and fitting them together, the internal unit such as the speedometer 11 can be assembled to the meter case 1. Therefore, the workability of assembling the inner machine can be significantly improved.

Further, since the dial plate is provided with the exposed portions 29a and 29b to expose the positioning hole 25, the internal unit such as the speedometer 11 does not become large and the assembling property in the space for the meter case 1 is impaired. Nothing.

In the above embodiment, the dial plate 17, the prism 19 and the drive unit 23 are integrated into the meter case 1. However, only the drive unit is installed before the meter case. It can be applied to a structure in which the dial plate 17 and the prism 19 are integrated and then assembled to the meter case 1 later. The exposed portion is not limited to the notch, but may be formed by printing out the dial 17 to form a transparent portion. Also,
The exposed portion may be formed by a through hole provided in the peripheral portion of the dial.

[0029]

As is apparent from the above, according to the invention of claim 1, it is possible to assemble while checking the positioning holes and the positioning pins from the surface of the dial during assembly.
No skill is required for assembly work, and workability is significantly improved. Further, the dial plate and the prism are not particularly increased in size, and the assembling property in the space for the meter case is not impaired.

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, it is possible to obtain the effect of improving workability and the like only by providing the notch, and the structure is extremely simple.

According to the third aspect of the invention, the transparent portion can be provided by printing out the dial plate or the like, no special processing is required, and the manufacturing is further facilitated.

According to the fourth aspect of the present invention, the through hole can provide the effect of improving workability and the like, and can suppress the decrease in the strength of the peripheral portion of the dial itself as compared with the notch.

According to the fifth aspect of the invention, since the exposed portion is provided by using the area having the function of writing the color-coded symbols of the dial, it is possible to reliably suppress the enlargement of the dial.

[Brief description of drawings]

FIG. 1 is a front view of a speedometer according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a relationship between a speedometer and a meter case according to an embodiment of the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG. 1;

FIG. 4 is an overall exploded perspective view of a meter device according to a conventional example.

FIG. 5 is a perspective view showing a relationship between a speedometer and a meter case according to a conventional example.

FIG. 6 is a front view of a speedometer according to a conventional example.

FIG. 7 is a front view of a speedometer having a possible structure.

[Explanation of symbols]

 1 Meter Case 3 Internal Machine 17 Dial 17a Area 19 Prism (Light Guide Plate) 23 Drive 25 Positioning Hole 27 Positioning Pin 29a Exposed 29b Exposed

Claims (5)

[Claims] 1. A light guide plate having a driving portion of a meter, a dial for displaying the meter, and a positioning hole which is integrally joined to the back of the dial and which is fitted to a positioning pin of a meter case in a peripheral portion. And a meter device, wherein the dial plate is provided with an exposed portion that exposes the positioning hole. 2. The meter device according to claim 1, wherein the exposed portion is a notch provided in a peripheral portion of the dial. 3. The meter device according to claim 1, wherein the exposed portion is a transparent portion provided on a peripheral portion of the dial. 4. The meter device according to claim 1, wherein the exposed portion is a through hole provided in a peripheral portion of the dial. 5. The meter device according to any one of claims 1 to 4, wherein the exposed portion is provided in an area for writing a color-coded symbol or the like on a dial.