JPH086350Y2 - Touch operation device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contact operation device for inputting operation information simply by touching an operation surface with a finger.

[0002]

2. Description of the Related Art Conventionally, a touch panel device in which a numeric keypad or the like is displayed on an operation surface and operation data is input by pressing the displayed operation surface has been widely used. An example of this touch panel device is shown in FIG. FIG. 10 is a partial cross-sectional view showing a cross section of the touch panel device. A touch panel device 1 shown in the figure closes an opening 3 formed in a casing 2 of an operation unit, a frame-shaped support member 4 fixed to the opening 3, and an opening of the support member 4. The contacted member 5 thus arranged and the circuit board 6 that supports the contacted member 5 so as to be sandwiched between the contacted member 5 and the support member 4 are provided. The circuit board 6 is screwed to a female screw portion 2a formed on the back surface of the casing 2 of the operation portion via a bolt 10. The circuit board 6 has an opening in the center thereof, and a frame-shaped element supporting member 7 for supporting the light receiving element 8 and the light transmitting element 9 is fixed around the opening. In the touch panel device 1 as described above, the light emitted from the light transmitting element 9 arranged on the side of the contacted member 5 enters the light receiving element 8 arranged opposite thereto. . Such a set of the light transmitting / receiving elements 8 and 9 is the contacted member 5
Are arranged side by side in a matrix. Therefore, when the contacted member 5 is pressed with, for example, a finger or the like, the light from any one of the two sets of the light-transmitting and receiving elements is blocked, and thereby the corresponding operation information is input.

[0003]

However, in the touch panel device 1 having the above structure, the contacted member 5 is supported by the circuit board 6. Therefore, the force pressing the contacted member 5 directly acts on the circuit board 6. As a result, the circuit board 6 is subjected to a distributed load as shown by P in the figure to be bent and deformed, which comes into contact with the cathode ray tube 11 arranged further on the inner side to exert an adverse effect, and further, the circuit board 6 itself. The problem of possible breakage remained unsolved.

Therefore, an object of the present invention is to provide a contact operation device in which a force applied to a contacted member does not directly act on the circuit board itself, thereby preventing the circuit board from being bent or deformed.

The structure of the present invention for achieving the above-mentioned object is to provide a contacted member which is arranged on the inner side of an opening formed in an operating portion and on which an operating force is applied in response to an input operation. A member, a support member whose one end is attached to a fixed portion in the operating portion, supports the contacted member at the open end, and elastically deforms in a direction intersecting with the direction in which the operating force acts, and the contacted member A circuit board that is spaced apart from the inner side of the circuit board and arranged substantially in parallel, and an element support member that is attached to the circuit board and that supports the light-transmitting and receiving elements facing the side of the contacted member. I am trying.

[0005]

According to the operation of the present invention having the above-mentioned structure, the contacted member is attached to the back side of the operating portion through the supporting member made of an elastic member. Therefore, when the operating force acts on the contacted member, the supporting member elastically deforms in the direction intersecting the operating force by this acting force. When the deformation of the supporting member reaches a certain amount of deformation, the supporting member contacts the element supporting member. Thereby, the deformation of the support member is restricted. Further, since the contacted member is supported by the supporting member, no force is applied in the thickness direction of the circuit board. In this way, the circuit board is prevented from being bent and deformed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 is an external perspective view of a contact operation device as one embodiment, FIG. 2 is an exploded perspective view of the contact operation device shown in FIG. 1, and FIG.
FIG. 2 is an enlarged cross-sectional view of the arrow AA portion shown in FIG. The contact operation device 20 shown in FIGS. 1 and 2 has a box-shaped case 21 made of synthetic resin, a frame member 22 in which a contacted member 23 is attached to the lower side in the drawing, and a cover member described later. The contact member 23 and the four fixing fittings 2 for fixing the contacted member 23 and the frame member 22 to the case 21.
4, 24, 25, 25, light transmitting element 28 and light receiving element 29
(As shown in FIG. 3), an element support member 2 for supporting and opposing
6 and a circuit board 27 on which the element supporting member 26 is attached on the upper surface in the drawing. Case 2
Reference numeral 1 is a box-shaped member having a substantially rectangular parallelepiped shape, and a rectangular opening 21a is formed on the upper surface. This opening 21
The frame member 22 is attached to the back surface of a. Illustrated frame member 2
2 is made of synthetic resin, and is made of a material that transmits the light transmitted / received between the light transmitting / receiving elements 28, 29 arranged on the side thereof. Then, the contacted member 23
Is arranged. The contacted member 23 is a synthetic resin plate-shaped member made of a material that transmits the light emitted from the cathode ray tube 30 (shown in FIG. 3) arranged further inside the circuit board 27.

FIG. 4 shows details of the fixing metal fittings 24, 25. FIG. 4 is an exploded perspective view showing a state in which the fixing metal fittings 24, 25 are attached to each other. The illustrated fixing metal fitting 24 and the fixing metal fitting 25 are both made of a conductive metal material having elasticity. The fixing metal fittings 24, 25 are
Attachment ends 24b and 25 to the back surface of the case 21 respectively
b, a supporting portion 24c for commonly supporting the contacted member 23,
And 25c. Of these, bolt holes 24d and 25d into which the bolts 21b are inserted are formed at predetermined intervals in the mounting end portions 24b and 25b, respectively, and are attached to the back surface of the case 21 through the bolt holes 24d and 25d. Of these, bent portions 25a, 25a are formed at both ends of the fixing metal fitting 25. The bent portion 25a is adapted to be elastically deformed by being pressed from below in the figure by one end portion 24a of the fixing metal fitting 24 when the fixing metal fitting 25 is attached to the case 21 together with the fixing metal fitting 24.

The frame member 22 is fixed to the back surface of the case 21 via bolts 21b by fixing metal fittings 24, 24 (25, 25) shown in detail in FIGS. One end of the fixing metal fitting 24 (25) is fixed by a bolt 21b together with the flange portion 21a (shown in FIG. 3) of the frame member 22, and the edge of the contacted member 23 described above is provided on the support portion 24c (25c). Section is placed. Thus, the contacted member 23 is fixed by the fixing metal fittings 24, 24 (25, 25).
The supported member 23 is supported by the frame member 22.
The lower end surface 22b of FIG.

FIG. 5 is an explanatory view showing a conductive connection state between the cathode ray tube and the fixing metal fitting, FIG. 6 is an enlarged detailed view of a portion indicated by reference symbol B in FIG. 5, and FIG. 7 is a mounting of the portion shown in FIG. It is explanatory drawing which shows a state. It should be noted that, in and after FIG. 5, the same components as those described in each of the drawings are given the same reference numerals and the description thereof will be omitted. Each fixing metal fitting 24
On (or the fixing metal fitting 25), a connecting metal fitting indicated by reference numeral 32 in FIG. 5 is attached. This connection fitting 32
Is for electrically connecting the fixing metal fitting 24 (25) and the connection piece 31 attached to the housing of the cathode ray tube 30 shown by the reference numeral 30a. The housing 30a is grounded as shown in FIG. Connection fitting 32
In this embodiment, as shown in FIG. 6, the metal is substantially J-shaped and is attached to the fixing metal fitting 24 by the bolt 21b so that the lower end 21c of the side wall of the case 21 can scratch the open end 32a. Elastic member. on the other hand,
As shown in FIG. 7, a connecting piece 31 having a bent portion 31a formed at its upper end is attached to a portion of the housing 30a facing the connecting fitting 32. The horizontal portion of the bent portion 31a of the connecting piece 31 shown in the drawing comes into contact with the metal fitting 32 for connection.

In the case of using the connecting fitting 32 and the connecting piece 31 as described above, as shown in FIG. 7, as the connecting piece 31 is moved upward in the drawing in the assembly process or the like,
The open end portion 32a of the connecting fitting 32 is elastically deformed from the state shown in FIG. 6 to the state shown in FIG. 7 (angle changes from θ1 to θ2). Then, as shown in FIG. 7, when the elastic deformation is completed due to the completion of the assembly or the like, the connecting fitting 32 and the connecting piece 31
Is in line contact at two points indicated by a contact point F and a contact point E, and the conductive state can be surely maintained at this portion by the elastic force of the connecting fitting 32. in this case,
In a display device that generates static electricity by itself like the above-mentioned CRT, it is possible to effectively remove the static electricity.
The closer the CRT and the fitting 32 for connection are, the more effective it is. The details of the element support member are shown in FIG. This figure is an enlarged perspective view of the element support member. The element support member 26 shown in the figure is formed with a plurality of insertion grooves 26a into which the light transmitting / receiving elements 28 and 29 for transmitting and receiving the light are inserted. The signals from the light-transmitting / receiving elements 28 and 29 inserted into the insertion groove 26a are transmitted to the circuit board 2 described above.
It is connected to the processing circuit via the circuit (not shown) formed in 7.

Operation of the contact operation device having the above structure,
The effect will be described with reference to FIG. In the same figure, an operation force is exerted in the direction of the downward arrow C (for example by a finger)
When is applied, the fixing metal fitting 24 is displaced from the position shown in (a) to the position shown in (b) according to this acting force. Further, the contacted member 23 is displaced from the position shown in (c) to the position shown in (d). Even in the state shown in (d),
The contacted member 23 and the cathode ray tube 30 arranged below the drawing are separated from each other. When the operating force is further increased from the state where the fixing metal fitting 24 is displaced to the position indicated by (b), the fixing metal fitting 24 tends to be further displaced in response to the increasing operating force. However, in this embodiment, since the element support member 26 is arranged on the left side of the fixing metal fitting 24 in the drawing, the fixing metal fitting 24 abuts on the element supporting member 26 and its displacement is restricted.
Further, due to this contact, a force acts on the circuit board 27 in the direction of arrow D, but in this case, the force acts in the direction intersecting with the direction of arrow C, so that the component force of the operating force acting in the direction of arrow C is very small. . Therefore, the circuit board 27 that cannot be avoided in the past
It is possible to prevent bending deformation and damage of itself. Further, it is possible to prevent the contact between the circuit board 27 and the cathode ray tube 30 caused by the bending deformation. It should be noted that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the gist thereof. For example, in the above-described embodiment, the case where the cathode ray tube is arranged on the inner side of the circuit board is illustrated, but the same effect can be obtained even when the contacted member itself is a display section made of liquid crystal.

[0012]

According to the present invention described in detail above, it is possible to provide a contact operation device in which the force applied to the contacted member does not directly act on the circuit board itself and the circuit board is not bent or deformed.

[Brief description of drawings]

FIG. 1 is an external perspective view of a contact operation device as one embodiment.

FIG. 2 is an exploded perspective view of the contact operation device shown in FIG.

FIG. 3 is an enlarged cross-sectional view of an arrow AA portion shown in FIG.

FIG. 4 is an exploded perspective view showing a state in which fixing metal fittings 24, 25 are attached to each other.

FIG. 5 is an explanatory diagram showing a conductive connection state between a cathode ray tube and a fixing metal fitting.

6 is an enlarged detailed view of a portion indicated by reference sign B in FIG.

FIG. 7 is an explanatory view showing a mounting state of a portion shown in FIG.

FIG. 8 is an enlarged perspective view of an element support member.

FIG. 9 is an explanatory diagram showing the operation of the present apparatus.

FIG. 10 is a partial cross-sectional view showing a cross section of a conventional touch panel device.

[Explanation of symbols]

 21a Opening 23 Contacted member 24,25 Supporting member 26 Element supporting member 27 Circuit board 28,29 Transmitting / receiving element

Claims (1)

[Scope of utility model registration request] 1. A contacted member, which is arranged on the inner side of an opening formed in the operation section and on which an operation force acts in response to an input operation, and an open end which is attached at one end to a fixed section in the operation section. A supporting member that supports the contacted member at a portion thereof and that is elastically deformed in a direction intersecting with the direction in which the operating force acts, and a circuit board that is arranged on the back side of the contacted member so as to be spaced apart and substantially in parallel An element support member mounted on the circuit board and supporting the light-transmitting and receiving elements facing each other on the side of the contacted member, the element support member being arranged at a position for restricting deformation of the support member. A contact operation device characterized in that.