JP2001153687A - Fixing structure of facing plate to instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the cost, simplify the assembling work, minimize the generation of defectives, and ensure the fixation of a surface glass and a facing plate to an instrument case. SOLUTION: When a facing plate 23 is set to an instrument case 25, a cutout 43 between flanges 41 of the facing plate 23 is matched with a fitting hole 39 of an instrument case 25. When a fitting claw 37 is fitted to the fitting hole 39 in order to install a surface glass 27 to the instrument case 25 in this state, a projection 47 of the surface glass 27 is allowed to abut on the flange 41 of the facing plate 23, whereby the facing plate 23 is laid in the state nipped and fixed between the instrument case 25 and the surface glass 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument case in which an instrument case such as a speedometer or a tachometer is attached, and a front glass is attached to the instrument case via a facing.

[0002]

2. Description of the Related Art FIG. 5 is an exploded perspective view of a conventional automotive instrument provided with a counter-fixing structure for an instrument.
Is assembled while being arranged between the instrument case 3 and the front glass 5. The instrument case 3 is provided with instrument devices such as a speedometer 7 and a tachometer 9 and various warning display units 11, and the like, and the facing 1 has a through hole 13 corresponding to these devices and display units. The driver looks at the instrument and display unit through the transparent hole 5 through the transparent cover glass 5.

[0003] The facing 1 is provided with a plurality of fitting claws 15 along the outer peripheral edge, and the front glass 5 is provided with a plurality of fitting claws along the outer peripheral edge at a position that does not interfere with the fitting claw 15. A claw 17 is provided. Fitting holes 19 and 21 are provided on the instrument case 3 side corresponding to the fitting claws 15 and 17, respectively.

FIG. 6 is a cross-sectional view of a portion where the fitting claw 15 of the facing 1 is fitted into the fitting hole 19 of the instrument case 3 in a state where the facing 1 and the front glass 5 are sequentially assembled to the instrument case 3. FIG.

[0005]

However, the conventional counter-fixing structure of the above-described instrument has the following problems.

(1) Since the fitting claw 15 provided on the facing 1 is fitted into the fitting hole 19 of the instrument case 3, the shape of both the facing 1 and the instrument case 3 becomes complicated, and the molding As the mold becomes more complicated, the amount of resin material increases, leading to an increase in cost.

(2) In addition to the work of fitting the fitting claw 17 of the front glass 5 to the instrument case 3, the work of fitting the fitting claw 15 to the instrument case 3 is also necessary for the facing 1, and the assembling work is required. Is complicated.

(3) The fitting claws 15, 17 are protruded and are subject to stress, so that breakage such as breakage or cracking is apt to occur. Since it is also provided in the counterpart 1, the frequency of occurrence of defective products increases.

(4) When the fitting claw 17 of the front glass 5 is set at an optimum position for fixing the fitting claw 17 to the instrument case 3,
As shown in FIG. 5, the fitting claw 15 of the facing 1
Since it must be arranged at a position deviated from the fitting claw 17 so as not to interfere with the fitting claw 17, an optimal fitting position cannot be obtained for the facing 1 and the fixing of the facing 1 to the instrument case 3 is insufficient. Becomes In order to set the two fitting claws 15 and 17 at the optimum positions, the fitting claws 17 are arranged outside the fitting claws 15 at the optimum positions, and the fitting holes 19 and 21 of the instrument case 3 are correspondingly arranged. Can be considered as a two-stage method. In this case, however, the fitting portion has a shape protruding outward, and interference with surroundings is also considered, which is not preferable.

It is an object of the present invention to reduce the cost and simplify the assembling work, to reduce the occurrence of defective products, and to securely fix the front glass and the return to the instrument case.

[0011]

In order to achieve the above object, according to the first aspect of the present invention, a front glass is attached to an instrument case in which instrument devices such as a speedometer and a tachometer are attached via a facing. In the face-down fixing structure of the instrument, the front glass is provided with a plurality of fitting claws that fit into fitting holes formed in the instrument case, and the fitting claws are fitted in the fitting holes. A projection that abuts against the flange formed in the opposite direction and clamps and fixes the opposite side between the instrument case and the front glass,
Each is provided with a configuration.

According to the instrument counter-fixing structure having such a configuration, when the fitting claw of the face glass is fitted into the fitting hole of the instrument case, the projection of the face glass is abutted against the facing flange, As a result, the facing is assembled while being sandwiched between the front glass and the instrument case.

According to a second aspect of the present invention, in the configuration of the first aspect, the protrusion is provided near the fitting claw.

According to the above configuration, the projection of the front glass is abutted against the flange in the vicinity of the fitting claw fitted into the fitting hole of the instrument case.

According to a third aspect of the present invention, in the configuration of the second aspect of the invention, the projections are provided on both sides of the fitting claw.

According to the above configuration, the projection of the front glass is abutted against the counter flange on both sides near the fitting claw fitted into the fitting hole of the instrument case.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view of an automotive instrument provided with a counter-fixing structure for an instrument according to an embodiment of the present invention. As in the case of the above-mentioned conventional instrument, the facing 23 is assembled in a state where the facing 23 is disposed between the instrument case 25 and the front glass 27. Instrument case 2
5 is provided with instrument devices such as a speedometer 29 and a tachometer 31 and various warning display portions 33. The facing 23 has a through hole 35 corresponding to these devices and display portions. The driver looks at the instrument and display unit through the through hole 35 through the front glass 27.

The front glass 27 is provided with a plurality of fitting claws 37 along the outer peripheral edge, similarly to the conventional example, and fitting holes 39 are formed in the instrument case 25 corresponding to the fitting claws 37. Is provided. The position of the fitting claw 37 is set to an optimum position for fitting and fixing the fitting claw 37 into the fitting hole 39 of the instrument case 25, whereby the front glass 27 is moved relative to the instrument case 25. Securely fixed.

On the other hand, a flange 41 is provided on the outer peripheral edge of the facing 23 at a position corresponding to between the fitting claws 37 of the front glass 27. That is, the fitting claw 37 enters the notch 43 between the flanges 41 at the time of assembling. At this time, the flange 41 comes into contact with the outer peripheral end surface 45 of the instrument case 25.

In the vicinity of both sides of the fitting claw 37, protrusions 47 are provided.
Is provided. 2 and FIG. 2 are plan views showing a state in which the fitting claw 37 is fitted in the fitting hole 39.
As shown in FIG. 3, which is a cross-sectional view taken along line A-A of FIG. FIG.
Is an enlarged view of the main part of FIG. 2, where a ≦ b, where a is the gap between the front glass 27 and the facing 23 and b is the height of the projection 47 during manufacturing.

When the facing 23 is set at a predetermined position of the instrument case 25, the flange 41 is
5 comes into contact with the outer peripheral end surface 45, and the notch 43 between the flanges 41 is aligned with the fitting hole 39. When the front glass 27 is assembled to the instrument case 25 from above the facing 23 in this state, the fitting claws 37 of the front glass 27
Through the notch 43 of the instrument case 25.

At this time, the front glass 27 is
As shown in FIG. 4, butting is performed so as to bite into the flange 41 of the facing 23, whereby the facing 23
Is sandwiched between the instrument case 25 and the front glass 27 and is fixed without play.

According to the above-mentioned facing fixing structure, the facing 23 does not have the fitting claws as in the conventional example, and the fitting hole of the instrument case 25 also has the fitting hole of the front glass 27 correspondingly. Since only the one corresponding to the claw 37 is provided, the molding die for the facing 23 and the instrument case 25 can be simplified, the amount of resin material can be reduced, and the cost can be reduced. In addition, as the facing 23 is not provided with the protruding fitting claws, the handling is facilitated, and there is no possibility of the fitting claws being damaged, thereby reducing the frequency of defective products.

Further, since the facing 23 only needs to be set on the instrument case 25, the assembling workability is improved. The fitting claw 37 of the front glass 27 is set at an optimal position for fitting and fixing the fitting claw 37 into the fitting hole 39 of the instrument case 25. 2
Since the projections 47 that abut against the flange 41 of the third case are arranged, the fixing portion of the facing 23 to the instrument case 25 by the projections 47 is at an optimal position. Instrument case 2 as in 27
5 is securely fixed.

[0026]

As described above, according to the first aspect of the present invention, the dial has no fitting claw for fitting into the instrument case. Since the holes are only those corresponding to the fitting claws of the front glass, it is possible to simplify the molding die for the return and the instrument case, to reduce the amount of resin material, and to reduce the cost. Further, regarding the return, the absence of the protruding fitting claws facilitates handling and eliminates the possibility of damage to the fitting claws, thereby reducing the frequency of defective products. Further, since the facing is only required to be set on the instrument case, the assembling workability is improved.

According to the second aspect of the invention, since the projection of the front glass is provided near the fitting claw, the fitting claw is set at an optimum position for fitting into the fitting hole of the instrument case. In this case, the protrusions are also located at almost optimal positions for fixing the facing to the instrument case, and the front glass and the facing are securely fixed to the instrument case.

According to the third aspect of the present invention, the projections on the front glass are provided near both sides of the fitting claw, so that the fitting claw is located at an optimum position for fitting into the fitting hole of the instrument case. When set, the protrusions are also located at almost the optimal position for fixing the facing to the instrument case, ensuring that the front glass is fixed to the instrument case and that the facing is fixed to the instrument case more securely. Become.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an automotive instrument provided with an instrument counter-fixing structure according to an embodiment of the present invention.

FIG. 2 is a plan view of a portion where a fitting claw of the front glass is fitted into a fitting hole of the instrument case in a state where the facing and the front glass of FIG. 1 are assembled to the instrument case.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is an enlarged plan view of a main part of FIG. 2;

FIG. 5 is an exploded perspective view of an automotive instrument provided with a counter-fixing structure for an instrument according to a conventional example.

FIG. 6 is a cross-sectional view of a portion where a facing fitting claw is fitted into a fitting hole of the instrument case in a state where the facing and face glass of FIG. 5 are assembled to an instrument case.

[Explanation of symbols]

 23 Look back 25 Instrument case 27 Front glass 29 Speedometer 31 Tachometer 37 Fitting claw 39 Fitting hole 41 Flange 47 Projection

Claims (3)

[Claims] 1. A face-top fixing structure of an instrument in which an instrument glass such as a speedometer or a tachometer is attached to the instrument case through which a face glass is attached, wherein:
A plurality of fitting claws to be fitted into the fitting holes formed in the instrument case, and the fitting claws are abutted against the flanges formed in the facing manner in a state fitted in the fitting holes, and the facing is an instrument case. A counter-fixing structure for an instrument, wherein projections for clamping and fixing between the front glass and the front glass are provided. 2. The counter-fixing structure for an instrument according to claim 1, wherein the projection is provided near the fitting claw. 3. The counter-fixing structure for an instrument according to claim 2, wherein the projections are provided on both sides of the fitting claw.