JPH1187935A - Operation panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the productivity of an operation panel by assembling the operation panel only by the slide of a printed board without the use of a screw. SOLUTION: On the back surface of the panel plate 2 of this operation panel 1, a clearance column 21 abutted to the surface of the printed board 4 at an appropriate interval, a supporting column 22 provided with a pawl part 22a provided along the opposing two sides of the printed board 4 for detouring to the back surface for clamping the printed board with the clearance column 21 and a positioning pin 23 fitted to a locking hole 41 provided in the printed board 4 for blocking the movement of the printed board are provided. Thus, the operation panel 1 can be assembled only by the slide of the printed board 4, without the use of screws, and can be disassembled only by the slide of the printed board similarly to the time of assembly also at the time of abandonment.

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 for operating OA equipment such as copiers, printers, and facsimile machines, or home appliances such as audio equipment and microwave ovens. .

[0002]

2. Description of the Related Art FIGS. 2 and 3 show examples of the configuration of a conventional operation panel 90 of this type. For example, a key top 91 is provided on a panel plate 91 formed in a box shape having one open side.
a, an indicator light 91b is provided to enable the operation of the equipment provided with the operation panel 90 and to notify the operation state.

A switch body 92 is provided on the back of the panel plate 91 at a position corresponding to the key top 91a.
a, a lamp or LE at the position corresponding to the indicator light 91b
A printed circuit board 92 in which a light source 92b such as D is mounted on a surface facing the panel board 91 is mounted with a predetermined space therebetween.

In mounting the panel board 91 and the printed board 92, a plurality of bosses 91c are provided on the back surface of the panel board 91 to keep a predetermined distance from the printed board 92, and a side of the printed board 92 is provided. Has 9 holes
2c is provided, and a screw 93 is fixed to the boss 91c through the hole 92c. Electronic components and the like are attached to the printed circuit board 92 as needed, and a dustproof sheet 94 for protecting the switch body 92a from water droplets and dust is provided as needed.

[0005]

However, in the operation panel 90 having the above-mentioned structure, a plurality of screws 93 are fixed at the time of assembling. When the OA equipment and the like are discarded due to increased momentum for use and the like, it is desired that the resin member and the metal member are separated and treated so that the resources can be easily reused.

This demand is not an exception in the operation panel 90 which is a part of the OA equipment. Therefore, the operation panel 90 having the conventional structure requires a very troublesome operation such as removal of the screw 93 even at the time of disposal. But
If it takes too much time, resources to be reused become costly, causing a problem that the purpose of resource reuse is hindered, and solving these points is an issue.

[0007]

According to the present invention, as a specific means for solving the above-mentioned conventional problems, there is provided a printed circuit board in which a switch body is mounted on a back surface of a panel-shaped panel plate on which a key top is mounted. A plurality of gap posts for abutting against the surface of the printed circuit board and maintaining an appropriate distance from the back surface of the panel board on the back surface of the panel board; A plurality of support posts, which are provided along two opposing sides of the printed circuit board, are provided along two opposite sides of the printed circuit board, and have a claw portion which is turned to the rear surface. A positioning pin is provided for fitting the printed circuit board in a state of being sandwiched between the gap support and the support support and for preventing movement of the printed circuit board in a direction parallel to the panel board. It solves the problem by providing a control panel.

[0008]

Next, the present invention will be described in detail based on an embodiment shown in the drawings. 1 is an operation panel according to the present invention.
Is formed, for example, in a box shape with an opening on the back side, a panel plate 2 on which a key top 3 is attached and an indicator light portion 2a is provided, and a switch body 5 and an indicator light portion 2a at positions corresponding to the key tops 3. Lamp or LE at the corresponding position
It is the same as the conventional example in that it comprises a printed circuit board 4 on which a light source 6 such as D is mounted.

Here, in the present invention, a gap support 21, a support support 22, and a positioning pin 23 are provided on the back surface of the panel plate 2.
In addition, the printed circuit board 4 is provided with a locking hole 41. The printed circuit board 4
Is provided with a notch 42 for a claw portion and an initial position hole 43 as necessary. The switch body 5
Is provided with a dustproof sheet 7 as required.

The gap support 21 projects from the back of the panel plate 2 as a column, a prism, or the like. At this time, the height of the gap support 21 is between the panel plate 2 and the printed board 4. The gap D is to be held between them. Further, when forming the gap support 21, it may be formed as a separate member from the panel plate 2, but it is preferable to form the gap support 21 at the same time as the panel plate 2 from the viewpoint of reducing the number of assembling steps.

At this time, a plurality of the gap posts 21 are provided on the back surface of the panel plate 2 as appropriate arrangements. By doing so, the surface of the printed board 4 (confronting the panel plate 2) is provided. When the front end of the gap support 21 is brought into contact with the surface on the side where the gap is formed, the panel plate 2 and the printed circuit board 4 face each other in parallel with a predetermined gap D.

The support columns 22 are provided along two opposing sides of the printed circuit board 4. The support columns 22 have a substantially inverted L-shape having a claw portion 22a. It is provided as a direction to turn around on the back surface of the printed circuit board 4. In addition, also in this support column 22,
For example, a plurality of such as four places are provided.
It is similar to the above-described gap support 21 in that it is preferable to perform integral molding with the panel plate 2.

The claw 22a of the support column 22
Is formed so as to be in contact with the back surface of the printed circuit board 4 in a state where the surface thereof is in contact with the gap support 21 and has a predetermined gap D with the panel board 2. And the support column 22 between the front and back surfaces, so that a specified gap D is securely held.

Therefore, the printed circuit board 4 is fixed in the direction near and far from the panel plate 2, but can still be moved in the direction parallel to the panel plate 2. The positioning pins 23 are provided to project from the rear surface of the panel plate 2.
And the locking holes 41 provided in the printed circuit board 4. When the positioning pins 23 and the locking holes 41 are fitted with each other, the panel plate 2 and the printed circuit board 4 are provided in a specified position. ing.

At this time, the positioning pins 23 are provided on the back surface of the panel plate 2 in the same manner as the gap support 21 described above.
For example, it is formed to project as a columnar shape,
The gap support 21 is formed appropriately longer than the gap support 21.
And the support column 22 are fitted into the locking holes 41 of the printed circuit board 4 where the gap D is maintained, thereby locking the movement in the direction parallel to the printed circuit board 4.

Here, in order to fit the positioning pins 23 into the locking holes 41, the printed circuit board 4 is brought into contact with the positioning pins 23 while the printed circuit board 4 is held between the gap support 21 and the support support 22. The printed board 4 may be bent so as not to be bent and moved in parallel, and the bending of the printed circuit board 4 may be returned when the positioning pin 23 and the locking hole 41 coincide with each other. However, it cannot be denied that the distance for the parallel movement becomes long.

Therefore, according to the present invention, when the distance for performing the parallel movement is to be reduced, the printed circuit board 4 is not required.
And a notch 42 for a claw portion and an initial position hole 43 are provided at appropriate distances from a predetermined mounting position of the panel board 2 and the printed board 4. Support column 2 when approaching in two directions
The second claw portion 22a is formed to pass therethrough.

The initial position hole 43 is located at a position corresponding to the positioning pin 23 of the printed circuit board 4 when the claw notch 42 and the claw 22a of the support post 22 are aligned. When the initial position hole 43 is provided, it is preferable that the top of the positioning pin 23 has an appropriate shape for the movement of the printed circuit board 4 described later, for example, a hemisphere.

When mounting the panel board 2 and the printed board 4 having the above-described configuration, first, the printed board 4 is sandwiched between the gap support 21 and the claw 22a of the support support 22, and the printed board 4 is mounted in this state. The positioning pin 23 is slid over the top of the positioning pin 23 in a predetermined parallel direction with the panel board 2 by temporarily bending or the like.

When the locking hole 41 reaches the position where the positioning pin 23 is provided, the printed circuit board 4 is elastically restored to the bent state, and the positioning pin 23 is fitted into the locking hole 41, and Reference numeral 4 indicates that the locking in the direction parallel to the panel plate 2 is performed.

At this time, if the claw notch 42 and the initial position hole 43 are provided in the printed circuit board 4, the claw 22
a is aligned with the notch 42 for the claw portion,
Reference numeral 3 fits into the initial position hole 43, and the initial position is set in a state where the printed circuit board 4 is flat.

In this state, when the printed board 4 is pushed in a predetermined direction in a direction parallel to the panel board 2, the positioning pins 23 bend the printed board 4 and escape from the initial position holes 43,
Then, it is fitted into the locking hole 41 by appropriate parallel movement.
At this time, the printed circuit board 4 is clamped by the gap support 21 and the claw 22a of the support support 22, so that the printed circuit board 4 is fixed.

By configuring the operation panel 1 as described above, the operation panel 1 can be assembled without using a metal member such as a screw. In addition, since the printed circuit board 4 is merely slid during assembly, the process can be simplified without using any tools or the like.

It should be noted that the operation panel 1 of the present invention assembled as described above does not cause any difference in the form on the front side (see FIG. 2 of the conventional example) which can be seen by the user. There is no difference in the use procedure and the like, so that the user does not feel uncomfortable.

Furthermore, when the operation panel 1 is to be sorted by material before being discarded, the printed circuit board 4 may be slid in a direction opposite to the direction of assembly, so that the processing is simplified and, in addition, the screws are removed. Is not used, and there is no possibility that the metal member may be mixed at all after the treatment, so that the separation of the material can be surely performed.

[0026]

As described above, according to the present invention, on the back surface of the panel board, a gap support for abutting against the surface of the printed board and maintaining an appropriate gap with the back surface of the panel board, and A support post is provided along two opposing sides and has a claw portion that turns around to the back and a support post that sandwiches the printed circuit board between the front and back surfaces with a gap support. The operation panel is provided with positioning pins that are fitted in a state of being sandwiched between the support columns and prevent movement of the printed circuit board in a direction parallel to the panel board, so that only the printed circuit board slides without using screws. This makes it possible to assemble the operation panel, and has an extremely excellent effect in improving the productivity of this type of operation panel.

Also, at the time of disposal, disassembling can be performed only by sliding the printed circuit board as in the case of assembling, so that there is an effect that the processing cost can be reduced at the time of disposal, and since no screws are used, metal members are used at the time of processing. There is also an effect that the resources can be reliably reused without fear of being mixed at all.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an operation panel according to the present invention in a partially exploded state.

FIG. 2 is a perspective view showing a conventional example in a use state of an operation panel.

FIG. 3 is a perspective view showing a configuration of a conventional example in a partially exploded state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Operation panel 2 ... Panel board 21 ... Gap strut 22 ... Support strut 22a ... Claw part 23 ... Positioning pin 3 ... Key top 4 ... Printed circuit board 41 ... Locking hole 42 ... Claw Notch 43 for part Initial position hole 5 Switch body 6 Light source 7 Dustproof sheet

Claims (1)

[Claims] 1. An operation panel in which a printed board on which a switch body is mounted is locked to a back surface of a panel-shaped panel plate on which a keytop is mounted, wherein the front surface of the printed board is provided on the back surface of the panel plate. A plurality of gap struts for abutting against the back face of the panel board and maintaining an appropriate gap with the back face of the panel board, and the gap struts having claw portions provided along two opposing sides of the printed circuit board and turning around to the back face. A plurality of support posts for holding the printed circuit board on the front and back surfaces, and a fitting hole provided on the printed circuit board fitted with the printed circuit board sandwiched between the gap support and the support posts. An operation panel having a positioning pin for preventing movement in a direction parallel to the plate.