JPH09164546A - Operation panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation panel hard to generate the molding irregularity caused by the filling inferiority of a resin and beautiful in finish. SOLUTION: In an operation panel made of a resin having a panel main body 10 and the button part integrally connected to the panel main body 10 by elastic pieces 21, 21a, resin injection ports G1, G11 at a time of the molding of the operation panel are arranged to both of the panel main body 10 and the button part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation panel provided in an operation section of equipment or the like. More specifically, the present invention relates to a resin operation panel including a panel main body and a button portion integrally connected to the panel main body. It is related to the operation panel that can clean the.

[0002]

2. Description of the Related Art As a conventional operation panel, Japanese Patent Publication No. 7-6
The one described in Japanese Patent Publication No. 0947 is known.

FIG. 8 is a partial plan view of the operation button device described in Japanese Patent Publication No. 7-60947.

In the figure, 1 is a panel body, and 2 is an operation button. Reference numeral 3 is an elastic piece that connects the panel body 1 and the button 2. A resin injection port 4 is provided on a side portion of the button 2, and a resin material is injected from a portion of the mold corresponding to the resin injection port 4 at the time of molding. The resin injected from the resin injection port 4 forms the button 2, and then flows through the elastic piece 3 toward the panel body 1 side to form the panel body 1.

According to such an operation panel, since the resin flows toward the panel body 1 side after the button 2 is molded at the time of molding, the resin flow in the button 2 becomes stable and the surface of the button is The advantage is that it looks beautiful.

[0006]

The above-mentioned conventional operation panel has the following problems.

At the time of molding, the resin was designed to flow from the button 2 side through the elastic piece 3 to the panel body 1 side, so the elastic piece 3 having a small cross-sectional area was likely to become a bottleneck against the flow of resin. For this reason, it is difficult for the resin to flow to the corners of the panel body 1, and uneven formation due to defective filling of the resin is likely to occur.

An object of the present invention is to solve the above-mentioned problems,
An object of the present invention is to provide an operation panel in which unevenness in the formation due to defective filling of the resin hardly occurs and the finish is beautiful.

[0009]

In order to achieve the above object, an operation panel of the present invention is a resin operation panel having a panel body and a button portion integrally connected to the panel body with an elastic piece. A resin injection port for molding the operation panel is arranged on both the panel body and the button portion.

[0010]

According to the operation panel of the present invention, since the resin injection port for molding the operation panel is arranged on both the panel body and the button portion, at the time of molding, the panel is directly injected from each resin injection port. Resin is supplied to the main body and the button portion.

Therefore, according to the operation panel of the present invention, it is not necessary to flow the resin from the button side to the panel body side through the elastic piece having a small sectional area to mold the panel body as in the conventional case, and the filling failure of the resin is caused. Formation unevenness is less likely to occur. As a result, the finish of each of the panel body and the button portion becomes beautiful.

[0012]

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

FIG. 1 is a plan view showing an embodiment of an operation panel according to the present invention, FIG. 2 is a bottom view, and FIG. 3 is III-III of FIG.
A line sectional view, and FIG. 4 is a rear view.

In these drawings, the operation panel of the present embodiment includes a resin panel body 10, a first button portion 20 integrally connected to the panel body 10 by an elastic piece 21, and a panel body. 10 and a second button portion 30 integrally connected by an elastic piece 21a.
Resin injection ports G1 (see FIG. 1), G1 for molding the operation panel on both the first and second button portions 20 and 30.
1 (see FIGS. 1 and 2) is arranged.

First, the panel body 10 will be described.

The panel body 10 is formed in such a shape that it can be fitted into an operation portion (not shown) of an office automation equipment or the like. As shown in FIGS. 5, 6 (a) and 6 (b), the panel body 10 has a lower portion. A print substrate P including a tact switch SW having a small stroke is arranged.

Two resin injection ports G1 are provided on the left and right sides of the panel body 10 in total.

1 to 4, reference numerals 10a and 10a denote engaging pieces provided on both left and right sides of the panel body 10, and a panel body 1 is provided at an operation portion of an OA device (not shown) at a lower end portion.
Hooks 10b and 10b for fixing and fixing 0 are provided.

In FIGS. 1, 3 and 6 (a), reference numeral 11 is a shallow recess provided in the upper surface of the panel body 10, and this recess 11 has the first and second button portions 20, 30. A thin resin sheet 40 on which functions and the like are displayed is attached by an adhesive. Reference numeral 12 is a window for displaying a pilot lamp.

Next, the first and second button portions 20 and 30 will be described.

First button section 20 and second button section 30
Since they are basically formed in the same structure, the first button portion 20 will be mainly described.

As shown in FIGS. 5 and 6A and 6B, the button portion 20 includes a resin injection port G11, a key top 22, a protrusion 23, and a pin 24.

The resin injection port G11 is formed between the elastic pieces 21 and 21 connecting the key top 22 and the panel body 10. When the resin is injected from such a resin injection port G11, the resin is injected into the key top 22, the protrusion 23,
After the pins 24 are formed, the elastic pieces 21 and 21 are formed to reach the panel body 10 side and join the resin injected from the resin injection port G1 of the panel body 10.

The key top 22 is formed in a substantially kamaboko shape and has a shape that can be easily operated with a finger. The projecting piece 23 is vertically provided directly below the key top 22, and the printed board P
The button B of the tact switch SW arranged above is directly pushed down.

A pair of pins 24 are vertically provided on the left and right sides of the projecting piece 23 below the tip of the first button portion 20.
As shown in FIG. 6A, a gap n is provided between the tip portion 24a of the pin 24 and the upper surface of the print substrate P, and the first button portion 20 can be pushed down by the gap n. Has become. This prevents the first button portion 20 from being pushed down more than necessary, and prevents the tact switch SW from being damaged. The size of the gap n is set to be equal to or slightly smaller than the stroke of the button B of the tact switch SW.

Furthermore, since the pins 24 are arranged on both the left and right sides of the first button portion 20, the first button portion 20 is less likely to wobble in the left-right direction even when the first button portion 20 is strongly pressed. ing.

Next, the second button section 30 will be described.

Since the second button portion 30 is basically formed in the same structure as the first button portion 20, different portions will be described here.

That is, the second button portion 30 is different from the first button portion 20 in that the resin injection port G11 is the first.
Compared to the button portion 20 of FIG.

As described above, since the resin injection port G11 is formed so as to widen toward the key top 22, the resin can be easily spread.

Next, the elastic pieces 21 and 21a connecting the panel body 10 and the first and second button portions 20 and 30 will be described.

First, the elastic piece 21 will be described with reference to FIGS. 5 and 6A and 6B.

A pair of elastic pieces 21 are provided on the left and right sides and are formed thin and flat. Reference numeral 25 is a connecting portion between the elastic piece 21 and the panel body 10, and is formed to be thicker than the elastic piece 21. 26 is a step formed on the upper surface side of the connecting portion 25, 27 is an inclined surface formed on the lower surface side of the connecting portion 25, and 28 is a boundary portion between the elastic piece 21 and the connecting portion 25.

The step 26 is provided at a position displaced to the panel body 10 side (arrow X1 side in FIG. 6A) from the boundary portion 28, and when the first button portion 20 is operated, the boundary portion It serves to prevent stress from concentrating on 28. Even when the step 26 is provided at a position displaced from the boundary portion 28 toward the first button portion 20 side, the boundary portion 2
It is possible to prevent stress from concentrating on 8. However, in this case, the elastic piece 21 becomes thicker by the amount that the step 26 is displaced toward the first button portion 20 side.
The feel when operating the first button portion 20 becomes stiff. Therefore, it is preferable that the step 26 is provided at a position displaced toward the panel body 10 side with respect to the boundary portion 28 as in this embodiment.

As shown in FIG. 6A, the elastic piece 21 is
Due to this step 26, the resin sheet mounting surface 13 of the recess 11 is
It is placed one step lower than. Thereby, the recess 11
A gap m is formed between the resin sheet 40 and the elastic piece 21 adhered to each other. By forming such a gap m, the following advantages are obtained.

Assuming that the elastic piece 21 is the resin sheet mounting surface 13
If the adhesive is present between the resin sheet 40 and the elastic piece 21 for some reason when the resin sheet 40 is adhered (for example, the adhesive is applied to the outside of a predetermined area). In the case where it has been applied) or after the resin sheet 40 has been adhered and the adhesive has spread between the resin sheet 40 and the elastic piece 21,
The resin sheet 40 and the elastic piece 21 are joined by an adhesive, which causes a problem that the operability of the first button portion 20 is impaired.

On the other hand, according to the operation panel of the present embodiment, the elastic piece 21 is arranged one step lower than the resin sheet mounting surface 13, and the gap m is formed between the resin sheet 40 and the elastic piece 21. Therefore, even if the adhesive is present between the resin sheet 40 and the elastic piece 21, the resin sheet 40 and the elastic piece 21 are not joined, and therefore the operability of the first button portion 20 is reduced. Is never compromised.

The inclined surface 27 is formed so as to be inclined downward from the elastic piece 21 side toward the panel body 10 side. As a result, the connecting portion 25 moves from the elastic piece 21 side to the panel body 10
It gradually becomes thicker toward the side. By providing the inclined surface 27 in the connecting portion 25, it is possible to more effectively prevent the stress from being concentrated on the boundary portion 28. It should be noted that the inclined surface 27 is not limited to the one formed in a straight line as in the present embodiment, and may be formed in a curved line.

Next, the elastic piece 21a will be described with reference to FIGS. 1, 2 and 7. In these drawings, the same parts as those of the elastic piece 21 are designated by the same reference numerals.

As shown in FIGS. 1 and 2, the second button portion 3
0s are arranged side by side in the depth direction of the panel body 10. For this reason, the space in the depth direction is small, and it is impossible to provide the second button portion 30 with the same shape as the elastic piece 21 of the first button portion 20. If an elastic piece 21 having the same shape as the elastic piece 21 of the first button portion 20 is provided, the elastic piece becomes short, and the feel when the button portion is operated becomes stiff.

Therefore, in this embodiment, as shown in FIG. 1, the elastic piece 21a of the second button portion 30 is substantially L-shaped in plan view.
It is formed in the shape of a letter. With such a shape, the length of the elastic piece can be ensured by the amount of bending in the L shape, and the feel when operating the second button portion 30 is the same as when operating the first button portion 20. It can be similar to feel.

According to the operation panel of the present embodiment described above, since the resin injection ports G1 and G11 are arranged in both the panel body 10 and the button portions 20 and 30, the respective resin injection ports are molded at the time of molding. The resin is supplied to the panel body 10 and the button portions 20 and 30 directly from the inlets G1 and G11.

Therefore, according to the operation panel of the present embodiment, there is no need to flow the resin from the button portion side to the panel body side through the elastic piece having a small sectional area to mold the panel body, unlike the conventional case. Unevenness due to defective filling is less likely to occur. As a result, the panel body 10,
The finish of each of the button portions 20 and 30 becomes beautiful.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and various modifications can be appropriately made within the scope of the gist of the present invention.

For example, it is not always necessary to provide a pair of elastic pieces 21, 21a, and the first and second button portions 20, 3 are not necessarily provided.
One may be provided for 0, or three or more may be provided.

The resin injection port G11 of the first and second button portions 20 and 30 is not limited to the one formed between the elastic pieces 21 and 21a as in the above-described embodiment, It can be formed at any position of the first and second button portions 20 and 30.

[0047]

According to the operation panel of the present invention, unevenness in the formation due to defective filling of the resin is less likely to occur, and the panel body,
The finish of each button part is beautiful.

[0048]

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an operation panel according to the present invention.

FIG. 2 is a bottom view of the same.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a rear view of the same.

FIG. 5 is a partially enlarged perspective view of a button portion.

6A is an enlarged cross-sectional view taken along the line aa in FIG.
1B is an enlarged cross-sectional view taken along the line bb in FIG. 1.

7 is an enlarged cross-sectional view taken along line cc in FIG.

FIG. 8 is a plan view of a main part of an operation button device according to Japanese Patent Publication No. 7-60947.

[Explanation of symbols]

 10 Panel body 20,30 Button part 21,21a Elastic piece G1, G11 Resin injection port

Claims (1)

[Claims] 1. An operation panel made of resin having a panel main body and a button portion integrally connected to the panel main body by an elastic piece, wherein the operation panel is provided on both the panel main body and the button portion. An operation panel characterized by arranging a resin injection port for molding.