JP2506707Y2 - Instrumentation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an instrument device for accommodating an instrument main body such as a vehicle speedometer or a tachometer, and an electronic device.

[Conventional technology]

Conventionally, this type of instrument device that has been used for vehicle instrument devices, etc., is fixed by attaching the instrument body to the inside of the instrument case with the front side open, and attaching the display board to the upper part of the instrument body with screws etc. A transparent cover, which is a front case, is attached to the front side of the instrument case via a dial plate. It is necessary to position and assemble the instrument case, the display plate, the dial plate and the transparent cover so that their mounting positions do not deviate from each other. And a first protrusion that engages with the cutout groove is formed at the end of the dial plate, a recess is formed on the outer surface of the first protrusion, and the recess is formed on the inner surface of the peripheral wall of the transparent cover. A second protrusion that engages is formed, and at the time of assembly, the first protrusion of the dial plate is fitted in the notch groove of the instrument case to position the two, and the concave portion of the dial plate has a front surface. An instrument device is disclosed that fits the second protrusion of the transparent cover to position the two.

[Problems to be solved by the device]

In the above-mentioned prior art, although the dial plate and the transparent cover can be positioned and assembled with respect to the instrument case, the dial plate and the display plate that is viewed from the front side of the front transparent cover are especially for the dial plate. Since they are not positioned, there is a possibility that the visibility of the display portion of the display plate may be deteriorated due to the positional deviation between the dial plate and the display plate. Furthermore, the display plate is attached and fixed to the front of the instrument body with screws etc., but the display plate that is stored in the instrument case and attached to the instrument body is a scale provided on the surface of the instrument plate compared to the size of the instrument body. The display board is formed with a relatively large area in consideration of the visibility of the display part such as characters and symbols.

Therefore, there is a problem that the display plate fixed on the instrument main body by the screw easily resonates at a position located on the outer side of the fixed position due to the vibration from the outside, and a creaking noise is generated.

Therefore, an object of the present invention is to provide an instrument device that can prevent the display plate from swaying and ensure the positioning of each member.

[Means for solving the problem]

The present invention is an instrument device in which an instrument main body having a display plate on the front surface is disposed in an instrument case, and a dial plate and a front case are sequentially assembled on the front side of the instrument case. And a step portion that abuts the lower surface of the display plate is formed on the positioning pin, and a positioning cylindrical body is projected rearward on the lower surface of the front case corresponding to the positioning pin. The positioning tubular body is inserted into the positioning pin by inserting the positioning holes formed in the display plate and the dial plate into the positioning pin, and the front case is assembled to the instrument case, Further, the dial plate is sandwiched and fixed between the step portion and the positioning cylindrical body.

[Action]

The positioning pin positions the display plate, the dial plate, and the front case in the instrument case, and by assembling the front case to the instrument case, the dial plate and the display plate are attached to the stepped portion of the positioning pin and the positioning tubular body. It is sandwiched and the display plate is fixed by steadying.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 3 show a first embodiment of the present invention, in which a vehicle instrument case 1 made of synthetic resin or the like has an opening 2 at the front.
In the instrument case 1, an instrument main body 3 such as a tachometer and a speedometer is housed, and is fixed by a screw 5 inserted through a bottom wall 4 of the instrument case 1. In addition, the instrument body 3
A display plate 6 having substantially the same shape as the opening 2 is attached and fixed to the front surface of the with a screw 7.

Numerals 8 and 9 are positioning pins projecting from the bottom wall 4 of the instrument case 1 and arranged at appropriate intervals, and these positioning pins 8 and 9 are steps with which the lower surface of the display plate 6 abuts. Portions 10 and 11 are formed. Also, the instrument case 1
A plurality of receiving ribs 13 with which the lower surface of the peripheral edge of the display plate 6 abuts are formed on the inner periphery of the side wall 12. In addition, the display plate 6
A positioning hole 14 and an elongated positioning hole 15 are formed in each of the positioning pins 8 and 9, respectively.

Reference numeral 16 is a dial plate having a frame-shaped window portion 17 corresponding to the display portion of the display plate 6, and is made of an opaque material, and its peripheral edge is overlapped with the opening portion 2 of the instrument case 1. At the same time, the peripheral edge of the window portion 17 is disposed so as to overlap the front surface of the display plate 6. Further, on the rear surface of the dial plate 16, cylindrical portions 18 and 19 are provided so as to correspond to the positioning pins 8 and 9,
The positioning pins 8 and 9 are provided on the rear portions of the tubular portions 18 and 19, respectively.
A positioning hole 18A through which the hole is inserted and an elongated hole-shaped positioning hole 19A are formed. Further, a through hole 21 is formed in the dial plate 16 so as to correspond to the mounting boss portion 20 of the instrument case 1.

Reference numeral 22 is a transparent cover which is made of a transparent material and is a front case. The transparent cover 22 covers the opening 2 of the instrument case 1 and the dial plate 16 arranged in the opening 2, and the rear surface thereof is formed of the above-mentioned material. Positioning tubular bodies 23, 24 are provided so as to project rearward corresponding to the positioning pins 8, 9, and these positioning tubular bodies 23, 24 are respectively loosely inserted into the tubular portions 18, 19 of the dial plate 16. Positioning holes 23A into which the positioning pins 8 and 9 are inserted and elongated positioning holes 24A are formed in the positioning cylindrical bodies 23 and 24, respectively. Further, the transparent cover 22 is formed with a through hole 25 corresponding to the mounting boss portion 20 of the instrument case 1. In addition, the transparent cover 22
An engaging step portion 27 is formed on the outer peripheral portion of the instrument case 1 so as to engage with an elastic claw piece 26 protruding from the outer periphery of the side wall 12 of the instrument case 1. Reference numeral 28 in the drawing denotes a screw which is inserted from the front side of the transparent cover 22 through the through holes 21 and 25 and screwed to the mounting boss portion 20.

To assemble the instrument device of the present invention configured as described above, the instrument body 3 is housed in the instrument case 1 and the screw 5 is used.
And the positioning pins 8 and 9 are inserted through the positioning holes 14 and 15 of the display plate 6, and then the positioning holes 18A and 19A of the dial plate 16 are inserted into the positioning pins 8 and 9 to measure the dial plate 16. Attached to the opening 2 of the case 1, and also a transparent cover
The positioning tubular bodies 23 and 24 of 22 are inserted into the positioning pins 8 and 9, and the elastic claw piece 26 is engaged with the engaging step portion 27 to temporarily fix the transparent cover 22, and finally the screw 28 is fixed. The transparent cover 22 is assembled and fixed to the instrument case 1. And by this fixing, the display board 6
Further, the dial plate 16 is sandwiched between the step portions 10 and 11 and the positioning cylindrical bodies 23 and 24, so that the display plate 6 is fixed by steadying.

As described above, in this embodiment, the positioning pin 8 is provided in the instrument case 1 so as to project toward the front, and the positioning pin 8 is formed with the step portion 10 that abuts the lower surface of the display plate 6 to form a transparent cover as a front case. A positioning tubular body 23 is provided on the lower surface of the projection 22 so as to project rearward so as to correspond to the positioning pin 8.
And the positioning holes 14 and 18A formed in the dial plate 16 are inserted into the positioning pin 8, and the transparent tubular body 22 is attached to the instrument case 1, so that the positioning tubular body 23 is inserted into the positioning pin 8 and the display plate 6 is attached. And facing plate 16
Since it is fixed by sandwiching it between 10 and the positioning cylindrical body 23, by inserting the positioning holes 14, 18A, 23A into the positioning pin 8, the instrument case 1 is provided with a display plate 6, a dial plate 16, and a dial plate 16.
The transparent cover 22 can be assembled in a positioned state, and by further assembling and fixing the transparent cover 22 to the instrument case 1, the positioning tubular body 23 of the transparent cover 22 simultaneously comes into contact with the dial plate 16, and the dial plate 16 The display plate 6 is sandwiched between the step portion 10 and the step portion 10 and fixed to the steady state.

Further, in this example, the positioning pin 9 is provided separately from the positioning pin 8, so that the two positioning pins 8 and 9 prevent the display plate 6, the dial plate 16 and the transparent cover 22 from rotating. Prevents misalignment and therefore screw 28
Can be more easily screwed, and the workability of assembling can be improved.

4 and 5 show a second embodiment of the present invention. The same parts as those of the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. A larger display plate 6A is used in comparison with the above, positioning pins 8 and 9 are provided in a square shape in the instrument case 1A that does not have a receiving rib, and the display plate 6A has positioning holes 14 and elongated positioning holes. A hole 15 is provided, the dial plate 16A is formed in a flat plate shape without a cylinder portion, a positioning hole 18A and an elongated hole-like positioning hole 19A are provided, and a transparent cover 22A has a positioning hole 23A. A positioning cylindrical body 24 having a body 23 and a long hole-shaped positioning hole 24A is provided. Further, a plurality of elastic claw pieces 26 are provided on the outer periphery of the side wall 12 of the instrument case 1A, and in this case, the transparent cover 22A is formed by the engagement of the elastic claw pieces 26 and the engagement step portion 27 of the transparent cover 22A. Attached and fixed to instrument case 1A.

As described above, in the present embodiment, a plurality of positioning pins 8 and 9 are provided in the instrument case 1A so as to project toward the front, and the positioning pins 8 and 9 are provided with the step portions 10 and 11 which are in contact with the lower surface of the display plate 6A. Positioning cylindrical bodies 23, 24 are formed on the lower surface of the transparent cover 22A, which is the front case, so as to project rearward corresponding to the positioning pins 8, 9, and positioning holes formed in the display plate 6A and the dial plate 16A. Insert the positioning cylinders 23 and 24 into the positioning pins 8 and 9 by inserting 14 and 18A into the positioning pins 8 and 9 and by assembling the transparent cover 22A into the instrument case 1A, and
6A and facing plate 16A with step portions 10 and 11 and positioning tubular body 23 and 2
Since it is sandwiched between and fixed to 4, the display board 6A,
The dial plate 16A and the transparent cover 22A can be accurately positioned and attached to the instrument case 1A, and at the same time, the deflection of the peripheral edge of the display plate 6A can be prevented. Further, since the transparent cover 22A is attached and fixed to the instrument case 1A by using the engagement between the elastic claw piece 26 and the engaging stepped portion 27 without using a screw, the workability of assembling the instrument device can be improved.

The present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the present invention. For example, the size, shape, size, etc. of the instrument case can be appropriately selected. Positioning pin 8 provided on the instrument case
Can be in only one place.

[Effect of device]

The present invention is an instrument device in which an instrument main body having a display plate on the front surface is disposed in an instrument case, and a dial plate and a front case are sequentially assembled on the front side of the instrument case. And a step portion that abuts the lower surface of the display plate is formed on the positioning pin, and a positioning cylindrical body is projected rearward on the lower surface of the front case corresponding to the positioning pin. The positioning tubular body is inserted into the positioning pin by inserting the positioning holes formed in the display plate and the dial plate into the positioning pin, and the front case is assembled to the instrument case, And a dial plate which is sandwiched and fixed between the step portion and the positioning cylindrical body, and which can prevent the display plate from swaying and reliably position each member. It is possible to provide a location.

[Brief description of drawings]

1 to 3 show a first embodiment of the present invention, FIG. 1 is an exploded perspective view, FIG. 2 is a sectional view, FIG. 3 is a sectional view of an essential part, FIG. 4 and FIG. Shows a second embodiment, FIG. 4 is an exploded perspective view, and FIG. 5 is a sectional view. 1,1A …… Instrument case, 3 …… Instrument body 6,6A …… Display plate, 8,9 …… Positioning pin 10,11 …… Step portion, 14,15 …… Positioning hole 16,16A …… Lookout plate , 18A, 19A …… Positioning hole 22, 22A …… Transparent cover (front case) 23, 24 …… Positioning cylinder 23A, 24A …… Positioning hole

Claims (1)

(57) [Scope of utility model registration request] 1. A measuring device in which an instrument main body having a display plate on the front surface is disposed in an instrument case, and a dial plate and a front case are sequentially assembled on the front side of the instrument case, and a positioning pin is provided in the instrument case. Is formed so as to project toward the front, a step portion that abuts the lower surface of the display plate is formed on the positioning pin, and a positioning cylindrical body is projected rearward on the lower surface of the front case corresponding to the positioning pin. The positioning cylindrical body is inserted into the positioning pin by inserting the positioning hole formed in the display plate and the dial plate into the positioning pin and by assembling the front case to the instrument case, An instrument device characterized in that a display plate and a dial plate are sandwiched and fixed between the step portion and the positioning cylindrical body.