JPH04240491A - Operation panel device for instrument - Google Patents

Abstract

PURPOSE:To provide an operation panel device for instrument in which there is no space between a decorated plate and an operation panel, the decorated panel does not swell on or peel off an operation panel surface in the use throughout summer and winter. CONSTITUTION:An inner side wall 4 of a recessed part 3 provided in an operation panel 1 and an outer peripheral wall 4a of a decorated plate 2 mounted on the recessed part 3 are formed in inclined surfaces. A plurality of fixed pins 5 are provided on a rear surface of the decorated plate 2. When the decorated plate 2 is placed in the recessed part 3 of the operation panel 1, the outer peripheral wall 4a and the inner side wall 4 are brought contact into with each other on the inclined surfaces. A tip end of the fixed pin 5 passing through the operation panel 1 has a brim 5a to engage with a rear surface of the operation panel 1, so that a space (a) is left between the rear surface and the brim 5a. It is so designed that a depth of the recessed part 3 is larger than the thickness of the decorated plate 2, and that a difference between the depth of the recessed part 3 and thickness of the decorated plate 2 is larger than the space (a). As a result, if the decorated plate 2 swells because of thermal expansion, the both ends can move upward along the inclined surfaces, so that the decorated plate 2 does not go out of the surface of the operation panel 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel device for equipment, such as a washing machine, equipped with an operation panel for switches.

0002

2. Description of the Related Art The structure of a conventional operation panel device for this type of equipment will be explained using a washing machine as an example, with reference to FIGS. 2 and 3. As shown in FIG. 2, a washing and dehydrating tub 8 is rotatably provided in the receiving tube 7, and the receiving tube 7 and the washing and dehydrating tub 8 are suspended and supported on the washing machine main body 6 by a hanging rod 11. 12 is a top plate that covers the main body 6, and a lid 13 is attached to the center part. 14 is an operation panel, and a decorative plate 15 is pasted on the surface thereof. Note that 16 is a panel back plate, 9 is a rotary blade, and 10 is a motor.

FIG. 3(A) shows the operation panel section of FIG.
In the plan view seen in the direction of the arrow, this BB cross section is shown in FIG. 3(B).
It is. The decorative plate 15 is attached to the operation panel 14 with a gap C provided therebetween.

0004

[Problems to be Solved by the Invention] However, in the configuration of such a conventional panel device, although it is desired to reduce the gap C between the decorative plate 15 and the operation panel 14 on the plane from the perspective of appearance, If there is a difference in the coefficient of thermal expansion, that is, there is a difference in the expansion and contraction of both parts in summer and winter, and if the gap C is made too small, the decorative plate 15 will become tight at both ends, and the dotted line in Figure 3 (B) The state shown in is reached, and the final plaque 15
There was a problem of peeling off.

[0005] In view of the above problems, the present invention provides an operation panel device for equipment that eliminates the gap between the decorative plate and the operation panel, and prevents the decorative plate from swelling or peeling off from the operation panel surface during use, summer or winter. This is what we provide.

[0006]

[Means for Solving the Problems] In order to achieve the above object, an operation panel device for equipment according to the present invention includes an operation panel in which an inner wall forms a concave portion with an inclined surface, and an outer peripheral wall formed with an inclined surface and a plurality of recesses on the back surface. and a decorative plate provided with fixing pins, and when the decorative plate is installed in the recess, the inner wall and the outer peripheral wall touch on both slopes, and the tip of the fixing pin is attached to the operation panel. A flange that locks on the back surface is formed, and a gap is provided between the back surface of the operation panel and the flange, and the depth of the recess is greater than the thickness of the decorative plate, and the depth of the recess and the The difference in the thickness of the decorative plates is made larger than the gap.

[0007]

[Function] According to the above-described structure of the present invention, the inner wall of the concave portion of the operation panel and the outer circumferential wall of the decorative plate in contact with the inner wall of the concave portion of the operation panel are made to be sloped surfaces. Due to the difference in linear expansion coefficient, when the expansion of the dimensions of the decorative plate becomes large, the decorative plate can be slid upward along the slope without being strained.

[0008]Furthermore, in order to fix the decorative plate to the recess provided in the operation panel, after passing the fixing pin through the operation panel, the tip of the fixing pin is pressed or heat welded to form a brim, and the brim is engaged. At this time, a gap is provided between the operation panel and the brim to prevent the decorative plate from falling off and to allow upward movement. Further, by making the difference between the depth of the recess and the thickness of the decorative plate larger than the gap, the decorative plate does not rise above the surface of the operation panel, which is a consideration in terms of appearance. Here, the gap is approximately 50°C (-5°C to 45°C) between each material of the operation panel and the decorative plate.
It is necessary that the difference in coefficient of linear expansion is greater than the difference in linear expansion coefficient at .

[0009]

[Example] Hereinafter, an example of the present invention will be described as 1(A) and 1.
The explanation will be based on (B). In FIG. 1(A), 1 is an operation panel of the present invention, 2 is a decorative plate, and 5 is a fixing pin provided on the decorative plate 2. The AA cross section in FIG. 1(A) is shown in FIG.
In B), the decorative plate 2 is attached to the recess 3 provided in the operation panel 1. After the fixing pin 5, which is simultaneously molded on the lower surface of the decorative plate 2, is passed through the operation panel 1, it is pressed or heat-welded. The tip of the fixing pin 5 is formed in the shape of a flange 5a. At this time, a gap a is provided between the upper surface of the brim 5a and the lower surface of the operation panel 1, allowing the decorative plate 2 to move up and down by the dimension a. Reference numeral 4 denotes a side wall surface of the recess 3 of the operation panel 1, which is an inclined surface, and an outer circumferential side surface 4a of the mounted decorative plate 2 is also formed into an inclined surface and is in contact with the inclined surface of the side wall surface 4. H1 is the depth of the recess 3, H2 is the thickness of the decorative plate 2, and H1>H2,
The difference (H1-H2) is b.

To explain the operation of the above structure, the fixing pin 5
By forming the flange 5a at the tip of the panel, it is possible to prevent the decorative plate 2 from separating from the operation panel 1.
Since the outer circumferential side surface 4a of the decorative plate 2 is an inclined surface, when the decorative plate 2 is stretched significantly due to thermal expansion due to temperature difference, the operation panel 1 is attempted to be pulled at both ends, but the inclined surfaces contact each other. It can be moved upward by sliding. At the same time, it is the gap a between the collar 5a and the operation panel 1 that allows this upward movement.

Furthermore, H1>H2 and b>a ensure that the decorative plate 2 does not protrude from the operation panel 1 and maintains its appearance value under any usage conditions. Here a is operation panel 1
It is necessary that the difference in linear expansion coefficient at approximately 50°C (-5°C to 45°C) between the materials of the decorative plate 2 and The above action prevents the decorative plate 2 from peeling off from the operation panel 1 even if both parts expand and contract throughout summer and winter.

0012

[Effects of the Invention] As is clear from the above description, according to the present invention, there is provided an operation panel in which the inner wall forms a concave portion with a slope, and the outer peripheral wall has a slope with a plurality of fixing pins provided on the back surface. and a decorative plate, and when the decorative plate is attached to the recessed portion, the inner wall and the outer circumferential wall are in contact with each other at both slopes, and the tip of the fixing pin has a collar that engages with the back surface of the operation panel. and a gap is provided between the back surface of the operation panel and the brim, the depth of the recess is greater than the thickness of the decoration plate, and the difference between the depth of the recess and the thickness of the decoration plate is By configuring the gap to be larger than the above-mentioned gap, the operation panel device of the equipment has a stable appearance quality in which the decoration plate does not peel off from the operation panel even if the operation panel and the decoration plate expand and contract throughout summer and winter. can be provided.

[Brief explanation of the drawing]

FIG. 1 (A) is a plan view of an operation panel device of a device according to an embodiment of the present invention; FIG. 1 (B) is a sectional view taken along line AA in (A);

[Figure 2] Cross-sectional view of a conventional washing machine

[Fig. 3] (A) is a plan view of the operation panel section in Fig. 2 taken along line X-X; (B) is a sectional view taken along line B-B in (A);

[Explanation of symbols]

1 Operation panel 2　　　　　Palmet 3 Recessed part 4 Side wall surface (inner wall) 4a　　　　Outer peripheral side (outer peripheral wall) 5 Fixed pin 5a　　　Brim

Claims (1)

[Claims] 1. An operation panel having a recess formed with an inner wall having a slope, and a decorative plate having an outer circumferential wall having a slope and a plurality of fixing pins provided on the back surface, and the decorative plate is attached to the recess. At this time, the inner wall and the outer peripheral wall are in contact with each other at both slopes, and the tip of the fixing pin is formed with a collar that engages with the back surface of the operation panel, and there is a gap between the back surface of the operation panel and the collar. An operation panel for an apparatus configured such that a gap is provided between the two, the depth of the recess is larger than the thickness of the decorative plate, and the difference between the depth of the recess and the thickness of the decorative plate is larger than the gap. Device.