JPH08161970A - Remote control device - Google Patents

Abstract

PURPOSE: To provide a remote control device that has high strength and no malfunction and is easy to manufacture. CONSTITUTION: This remote control device is provided with a hollow resin case 15 consisting of an upper case 12 and a lower case 14, etc., and support portions such as support walls 40 projected from the interior wall surface of the back of the lower case 14 or supporting projections 42. The remote control device is provided with a printed board 16 supported by the support portions 41, 42 at its back and having push switches 18 provided on its front, and is also provided with a grating frame 44 placed on the printed board 16, formed in such a way as to surround each push switch 18 on the printed board 16, and separated from the resin case 15. The remote control device has pressing members 24 provided on the front of the upper case 12 of the resin case 15 to press the push switches 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote controller provided separately from an electronic device for operating the electronic device.

[0002]

2. Description of the Related Art Conventionally, for example, a remote control device such as a television is provided in a rectangular resin case separately from the television device, and channel numbers and other changeover switches are formed on the surface side of the resin case. There is. In this resin case, push switches are arranged on the back side of each changeover switch portion, and the push switches are soldered on the printed circuit board. And, this printed circuit board, on the support wall protruding from the inner wall surface of the resin case,
It is stored with the front and back sides supported.

[0003]

In the case of the above-mentioned conventional technique, since the printed circuit board is held by the supporting wall formed integrally with the resin case of the remote controller, as shown in FIG. On the surface side facing the support wall 2, after molding, a thin portion 3 of the thick wall portion was generated, and the surface condition of the case 1 was deteriorated. Further, there is a problem that the cover material having the channel numbers and the like attached to the surface of the resin case 1 and other attachment members cannot be attached tightly due to the shrinkage 3. Also, this support wall 2
If the number of the holes is reduced or the thickness thereof is reduced, the unevenness of the surface due to the shrinkage 3 is reduced, but the strength is weakened, and when the changeover switch on the surface of the resin case 1 is pressed for the switch operation, the resin The other parts of the case also bend,
There is also a problem of pushing other switches, and a problem of damaging the printed circuit board, the push switch, or the resin case itself when the user accidentally steps on the switch.

The present invention has been made in view of the above-mentioned prior art, and an object thereof is to provide a remote control device having high strength, no malfunction, and easy to manufacture.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a hollow resin case consisting of an upper case, a lower case, etc., a support wall or a support projection protruding from an inner wall surface of the resin case on the back side of the lower case, etc. And a printed circuit board having a switch such as a push switch provided on the front surface and a back surface supported by the support, and the resin formed on the printed circuit board so as to surround each switch of the printed circuit board. A spacer member such as a lattice-shaped frame body separate from the case,
The remote control device is provided with a pressing member that is provided on the front surface side of the upper case of the resin case and presses each of the switches. The supporting portion and the lattice of the lattice-shaped frame body are arranged at positions facing each other with the printed circuit board in between. The frame body is arranged so as to surround the switch and is in contact with the back surface of the resin case so as to surround the periphery of the pressing member.

[0006]

In the remote controller of the present invention, the printed circuit board in the resin case is supported by the spacer member so as to surround each switch, so that the pressing force from the pressing member directly acts only on the switch therebelow. The other switches are not affected by the deformation of the resin case or the like. Moreover, since it is supported so as to surround the switch on the printed circuit board by a lattice-shaped frame separate from the resin case,
It is possible to make the surface of the resin case highly flat without the need for a supporting protrusion on the surface of the resin case, and without causing the surface part to be thinned by the supporting portion.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The remote control device 10 of this embodiment has a hollow rectangular resin case 15 composed of an upper case 12 and a partial case 14, and a printed circuit board 16 made of glass epoxy resin, phenol resin or the like is housed inside the resin case 15. There is. A plurality of push switches 18 are soldered and surface-mounted on the surface of the printed circuit board 16 at predetermined intervals.

The upper case 12 is provided with a printed circuit board 16 on the front surface thereof in a state where each push switch 18 is provided.
A through hole 20 is formed so as to face the through hole 20.
A pair of swinging pieces 22 integrally projects from one side wall in the same direction along the surface. A pressing piece 24, which is a pressing member, is formed integrally with the rocking piece 22 at the tip of the rocking piece 22 and is located substantially in the center of the through hole 20.
Further, a cover material 26 having numbers or the like is attached to the surface of the upper case 12 in correspondence with each of the through holes 20 of the case 12. The cover member 26 is formed with a bulging portion 28 that bulges slightly upward corresponding to each through hole 20 of the upper case 12 so as to be elastically deformable.

The pressing piece 24 formed in each through hole 20 of the upper case 12 is formed at a position where the convex portion 24a on the front surface side is almost in contact with the back surface of the bulging portion 28 of the cover member 26. Further, the convex portion 24b on the back surface side of the pressing piece 24 projects so as to come into contact with the push button 18a of the push switch 18 of the printed circuit board 16 in the resin case 15.

The printed circuit board 16 has a circuit pattern (not shown) formed on the front and back surfaces, and the push switch 18 is connected to the circuit pattern. Further, the control IC 30, the chip resistor 32, and other electronic components such as a capacitor are soldered to the back surface of the printed board 16. A display element 34 and a transmission LED 36 are attached to the front end of the printed circuit board 16.

On the inner peripheral surface of the lower case 14 of the remote control device 10 of this embodiment, there are provided a support wall 40 and a support projection 42, which are a support portion for supporting the printed circuit board 16 in contact with a predetermined position of the printed circuit board 16. It is formed integrally. The support wall 40 and the support protrusion 42 are formed in the through hole 20 of the upper case 12.
It is formed so as not to face with.

Between the upper case 12 and the printed circuit board 16, a lattice-shaped frame body 44 which is a spacer member is formed so as to surround each push switch 18 of the printed circuit board 16.
Is arranged. The lattice-shaped frame body 44 is provided in the resin case 15.
Is formed separately from the resin. The width of the lattice 45 of the lattice-shaped frame body 44 is such that the printed circuit board 16 is placed on the support wall 40 or the like of the lower case 14, the lattice-shaped frame body 44 is placed on the printed circuit board 16, and the upper case 12 is It is formed to have a width that is substantially equal to the height of the space between the upper case 12 and the printed circuit board 16 in a state of being closed according to the lower case 14. In addition, the lattice-shaped frame body 4
4 is housed in the resin case 15 in such a manner that each lattice 45 is positioned so as to face the tip ends of the support wall 40 and the support protrusion 42 with the printed circuit board 16 interposed therebetween.

The operation of the remote control device 10 of this embodiment is as follows.
When a desired button is pressed from the surface of the cover material 26, the pressing piece 24 is pushed down via the bulging portion 28, and the pressing piece 24
The lower convex portion 24b pushes down the push button 18a, and the push switch 18 is turned on by a click. At this time, the push button 18 is pressed by the grid 45 of the grid frame 44.
Since the upper case 12 is elastically deformed and the pressing force does not reach the other push switches 18, there is no risk of malfunction. Further, by using the lattice-shaped frame body 44 that is separate from the resin case 15 and surrounds and protects the push switch 18 on the printed circuit board 16, it is not necessary to form a supporting projection on the front surface side and the back surface of the upper case 12. It is possible to make the surface of the upper case 12 highly flat without any shrinkage on the surface side of the thick portion due to the support member, and without any recess on the surface of the upper case 12. Further, since the support wall 40 and the support protrusions 42 and the lattices 45 of the lattice-shaped frame body 44 are arranged at the positions facing each other with the printed circuit board 16 interposed therebetween, the resin case 15 has extremely high strength, and the resin case 15 is very strong.
However, it is less likely to be damaged by the force from the front and back surfaces.

In the remote control device of the present invention, a spacer member, which surrounds the switch, is provided as a support member between the resin case of the printed circuit board and the resin case. The shape of the grid may be circular or polygonal other than the grid, and each spacer may be surrounded by a spacer member. Further, the number of surrounding portions such as lattices and circles can be set appropriately.

[0015]

According to the present invention, since the printed circuit board housed in the remote controller is supported by the spacer member which is separate from the resin case, the supporting member is integrally projected at a specific portion of the resin case which needs to be supported. There is no need to do so, the surface of the resin case is not thinned, and the flatness can be improved. Further, since each switch is surrounded by each lattice such as a lattice-shaped frame body as a spacer member, the pressing operation of pushing the switch does not affect other switches,
It does not cause malfunction. Moreover, since the strength of the lattice-shaped frame is extremely high, the resin case of the remote control device is not damaged, and the durability of the remote control device is greatly improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a remote control device of the present invention.

FIG. 2 is a partially cutaway vertical sectional view of this embodiment.

FIG. 3 is a vertical cross-sectional view showing a state of a resin case of a conventional remote control device.

[Explanation of symbols]

 10 Remote Control Device 12 Upper Case 14 Lower Case 15 Resin Case 16 Printed Circuit Board 18 Push Switch 24 Pressing Piece 40 Support Wall 42 Support Protrusion 44 Lattice Frame (Spacer Member) 45 Lattice

Claims (3)

[Claims] 1. A hollow resin case, a support portion protruding from an inner wall surface of the back surface of the resin case, and a printed circuit board having a back surface supported by the support portion and a plurality of switches provided on the surface. A spacer member that is mounted on the printed circuit board and that surrounds each switch of the printed circuit board, and is a separate member from the resin case, and a pressing member that is provided on the front surface side of the resin case and presses each of the switches And a remote control device. 2. The spacer member is a frame body formed in a lattice shape, and the supporting portion and each lattice of the lattice frame body are arranged at positions facing each other with the printed circuit board interposed therebetween. The remote control device according to item 1. 3. The remote control device according to claim 2, wherein the lattice-shaped frame body is arranged so as to surround the switch and is in contact with the back surface of the resin case so as to surround the periphery of the pressing member.