JPH09320395A - Key switch structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a key switch which can use switches of the same specification of the high and the like as two tact switches, can prevent an error loading of the tact switches, and can facilitate the production management and the like. SOLUTION: Pressing rods 34 and 35 to press two tact switches 11 and 12 are hung down at the positions separated to the lower side and the upper side from the centers of the first and the second pressing operation surfaces 31 and 32 of a side surface operation key 30 which is provided inclining at the side surface 1B of an apparatus main body 1, and the two tact switches 11 and 12 are provided at the positions passing the crossing point of the center line in the vertical direction and the center line in the lateral direction of the operation key 30, and separating the same distance α from the surface S vertical to a wiring base plate 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring board horizontally arranged in a device main body by an operation key having two pressing operation surface portions in front and rear and arranged obliquely on the side surface of the device main body such as a remote controller. The present invention relates to a key switch structure configured to press two tact switches mounted on a switch to switch their operating states.

[0002]

2. Description of the Related Art Recently, in devices such as remote controllers, in order to improve operability and the like, a device body such as a remote controller in which various operation keys 24 are provided on an upper surface 23 as schematically shown in FIG. On the side surface 13 of the pressing operation surface portion 21,
It is considered to arrange the operation keys 20 having two front and rear 22 incliningly.

[0003]

As described above, when the operation key 20 is arranged to be inclined with respect to the side surface of the device body 10, the operation key 20 is pressed to switch its operating state (ON-OFF). The wiring board 16 on which a tact switch (not shown) is mounted is the device body 10
Since it is usually arranged horizontally inside, the operation keys are arranged obliquely with respect to the wiring board 16.

However, when the operation key is arranged obliquely with respect to the wiring board, there is a problem in which part of the wiring board the tact switch is arranged. That is, in order to arrange the tact switch just below (right next to) the pressing operation surface portion provided at two positions on the operation key, the separation distance in the height direction (vertical direction) between the pressing operation surface portion at the two positions and the wiring board is set. Therefore, it is necessary to prepare two types of tact switches having different heights as the tact switch.

However, if two tact switches having different heights are mounted on the wiring board,
There is a risk of erroneous mounting such as reversing the mounting positions of these tact switches, and it is not preferable to use a plurality of types of tact switches for production control and inventory control.

The present invention has been made in order to solve the above-mentioned problems, and its purpose is to operate the inside of the main body of an apparatus such as a remote controller by operating the operation keys that are inclined and arranged on the side surface of the main body. In the key switch structure in which the two tact switches mounted on the wiring board horizontally arranged in the horizontal direction are pressed, two tact switches having the same height can be used, and the tact switch can be used. The purpose of this is to prevent erroneous mounting of switches and to facilitate production management and inventory management.

[0007]

In order to achieve the above object, the key switch structure according to the present invention is basically an operation key having a first pressing operation surface portion and a second pressing operation surface portion in front and rear. Is arranged on the side surface of a device body such as a remote controller, and the operation keys are pressed to switch two operation modes by pressing two tact switches mounted on a wiring board horizontally arranged in the device body. To be done.

Then, a push rod portion for pushing the two tact switches is vertically provided at a portion deviated from the center of the first and second pushing operation surface portions to the lower side and the upper side. It is characterized in that the two tact switches are arranged at positions separated by the same distance from a plane perpendicular to the wiring board, which passes through an intersection of a vertical center line and a horizontal center line.

[0009] In a preferred aspect of the present invention, the operation key is arranged in a curved overhanging portion which is curved so as to project outward on a side surface of the device body, and the first and second pressing operation surface portions are provided. The lengths of the pressing rod portions provided on the are different.

[0010] In another aspect, the outline C is provided at both ends of an intermediate portion of the first and second pressing operation surface portions of the operation key.
Both ends of the character-shaped return elastic hinge member are connected.

As described above, in the switch button mounting structure of the present invention, the pressing rod portion is located below and above the center of the first and second pressing operation surface portions, that is, in the vertical direction of the operation key. It is provided so as to be located on the lower side and the upper side of the center line of, according to the position of this pressing rod part,
Since the two tact switches are arranged at specific positions on the wiring board, even if two tact switches having the same specifications such as height are used, the tilted operation is performed. By pressing the pressing operation surface of the key, the two tact switches can be selectively turned on and off, and as a result, erroneous mounting of the tact switch can be prevented,
For convenience of production control and inventory control.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a device body 1 such as a remote controller to which the position embodiment of the key switch structure according to the present invention is applied. A large number of operation keys (not shown) are arranged on the upper surface 1A of the device body 1 shown in the figure, and a curved overhanging portion 2 is formed on the side surface 1B thereof so as to project outward. As can be seen by referring to FIG. 2, the oval key mounting hole 3 is provided in a state of being inclined in the vertical direction and the inner and outer directions, and the key mounting hole 3 is provided in the key mounting hole 3 as shown in FIG.
The side operation key 30 having the spherical first and second pressing operation surface portions 31 and 32 in the front and back and having an oval plan view is mounted.

On the bottom surface side of the first and second pressing operation surface portions 31, 32 of the side operation key 30, the center Ca located on the center line V in the vertical direction (direction in which the pressing operation surface portions 31, 32 are arranged). , Cb, which are located on the lower side and the upper side, that is, on the lower side and the upper side of the center line V, the pressing rod portions 34 and 35 having different cross-shaped cross sections are vertically provided. The lengths of the pressing rod portions 34 and 35 are adapted to the amount of protrusion of the key mounting hole 3 provided in the curved overhanging portion 2 in the inward and outward directions. Has been longer.

Further, the first of the side operation keys 30
Further, both ends of an intermediate C-shaped return elastic hinge member 40 having a substantially C shape are integrally connected to both ends of an intermediate portion (on the lateral centerline U) of the second pressing operation surface portions 31 and 32. The hinge member 40 includes a curved arm portion 41 connected to the intermediate portion, an L-shaped arm portion 42, and a linear base portion 43 connecting them, and the arm portions 41, 42 have Thin portions 44 and 45 are provided to facilitate elastic deformation.

On the other hand, in the device body 1, the wiring board 1
6 is arranged horizontally, and is pressed against the lower surface side of the wiring board 16 by the pressing rod portions 34, 35 protruding from the first and second pressing operation surface portions 31, 32 of the side operation key 30. The tact switches 11 and 12 whose operating states are switched (ON-OFF) are mounted.

The tact switches 11 and 12 have the same specifications, and as shown in FIG. 2 and FIG.
The center of the wiring board 16 passes through the center O (intersection point of the center lines U and V) of the operation keys 30 and is arranged side by side at the same distance α from the plane S perpendicular to the wiring board 16. Is arranged in the
a and 12a are pressing rod portions 34 provided on the lower surfaces of the first and second pressing operation surface portions 31 and 32 of the operation key 30,
It is located just below (immediately next to) 35.

Further, in the equipment body 1, when the side operation key 30 is attached to the key attachment hole 3, an L for holding the base portion 43 of the hinge member 40 so as to be sandwiched between it and the side surface 1B. -Shaped cross section holding part 6 and hinge member 40
Support portion 7 for receiving the thin portion 45 of the arm portion 42 of the arm 42 and two pressing operation surface portions 31, 32 of the side operation key 30.
Of the side operation key 30, which is brought into contact with an intermediate part (a center line U portion in the lateral direction passing through the center O of the operation key 30) of the side operation key 30, serves as a fulcrum when the operation operation part 31, 32 of the side operation key 30 is pressed. And a section 8 are provided.

The side operation key 30 is swingably held like a seesaw by the holding portion 6, the support portion 7, and the support portion 8, and the pressing operation surface portions 31 and 32 are hinge members 40.
Since it is pressed against the elasticity of, the stable operability is obtained, and when it is released after the pressing operation, the elasticity of the hinge member 40 causes it to return to its original position.

As described above, in the key switch structure of the present embodiment, the length of the pressing rod portion 3 is made different according to the protruding amount of the key mounting hole 3 in the inner and outer directions.
4, 35 are located on the lower and upper sides of the center of the first and second pressing operation surface portions 31, 32, that is, on the lower side and the upper side of the vertical center line V of the operation key 30. Since the two tact switches 11 and 12 are arranged at specific positions on the wiring board in accordance with the positions of the pressing rods 34 and 35, the two tact switches 11 and 12 are used as back switches. Even if the same specifications such as the height H (height from the wiring board mounting surface) of the same are used, the first and second pressing operation surface portions 31 and 32 of the operation keys 30 which are inclined and arranged. By pressing, the two tact switches 11, 12 can be selectively turned on and off, and as a result, erroneous mounting of the tact switch can be prevented, which is convenient for production control and inventory control. .

[0021]

As can be understood from the above description, in the key switch structure according to the present invention, the pressing rod portion has the first and second pressing rod portions.
Since the two tact switches are arranged at specific positions on the wiring board in accordance with the position of the pressing rod portion, the two tact switches are provided at positions deviating downward and upward from the center of the pressing operation surface portion of
Even if two tact switches with the same specifications such as height are used, two tact switches are selected by pressing the pressing operation surface portion of the operation keys that are inclined and arranged. It can be turned on and off as a result, and as a result, the erroneous mounting of the tact switch can be prevented, and the convenience of production management and inventory management can be achieved.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view schematically showing a front half of a device body such as a remote controller to which an embodiment of a key switch structure according to the present invention is applied.

FIG. 2 is a partially cutaway side view schematically showing the front half of the device body shown in FIG.

FIG. 3 is a view showing a side operation key used in the key switch structure shown in FIG.

FIG. 4 is a diagram provided for explaining a conventional key switch structure.

[Explanation of symbols]

 1 Equipment main body 1B Side part 2 Overhang part 3 Key installation opening 11, 12 Tact switch 16 Wiring board 30 Side operation keys 31, 32 Pressing operation surface part 34, 35 Pressing bar part 40 Hinge member U Horizontal center line V Vertical direction Center line O Center of operation keys Ca, Cb Center of pressing operation surface H Height of tact switch

Claims (3)

[Claims] 1. An operation key having a first depressing operation surface portion and a second depressing operation surface portion at the front and the back is inclinedly arranged on a side surface of a device body such as a remote controller, and is horizontally arranged in the device body by the operation key. In a key switch structure configured to press two tact switches mounted on a wiring board arranged in the above to switch their operating states, A push rod portion for pushing the two tact switches is vertically provided at a portion deviated to the upper side, and passes through an intersection of a vertical center line and a horizontal center line of the operation key. A key switch structure, wherein the two tact switches are arranged at the same distance from a vertical surface. 2. The pressing key provided on the first and second pressing operation surface parts, wherein the operation key is arranged on a curved overhanging part that is curved so as to project outward on a side surface of the device body. The key switch structure according to claim 1, wherein the rod portions have different lengths. 3. The elastic hinge member for return having a substantially C shape is connected to both ends of an intermediate portion of the first and second pressing operation surface portions of the operation key, respectively. The key switch structure described in 2.