JP2515827Y2 - 2-stage seesaw switch with click - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a two-stage seesaw switch, and more particularly to a two-stage seesaw switch with a click that produces a click sensation when any switch is turned on.

[0002]

2. Description of the Related Art Conventionally, in a seesaw switch, when an end portion of a seesaw-like swingable key top is pressed, first of all,
There is a two-stage seesaw switch having a structure in which the second-stage switch is turned on when the second-stage switch is turned on and pressed with a stronger force. This type of two-stage seesaw switch is used, for example, as a zoom switch of a video camera.

[0003]

However, the conventional two-stage seesaw switch of this type has a problem that its structure is complicated and its manufacturing cost is high.

In the conventional two-stage seesaw switch described above, there is no one configured to generate a click sensation when the first-stage switch is turned on and when the second-stage switch is turned on. The appearance of such a two-stage seesaw switch with a click has been demanded.

The present invention has been made in view of the above points, and an object of the present invention is to provide a two-step seesaw switch with a click which has a click feeling when any switch is turned on and has a simple structure. .

[0006]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention proposes that a plate body is pivotally supported at a substantially central portion thereof, and two inner projections (click pressing force) are provided on both lower surfaces of the shaft.
Part) 31, 32 and outer protrusion (click pressing part) 33, 3
4, a key top 3 provided with 4, and the inner protrusions 31 and 32 and the outer protrusions 33 and 34 arranged below the key top 3.
Switch contacts 11, 12, 1 at positions facing each other.
A substrate (flexible substrate 1) provided with 3, 14 and respective switch contacts 11, 12, 13, 14 of the substrate.
A click plate 21 provided with click plates 21, 22, 23, 24 mounted on the switch contacts 11, 12 which is turned on first when pressing both sides of the key top 3 respectively. , 22 is a bowl shape
And provide substantially cylindrical pressing portions 211 and 221 on the upper surface thereof
Further, the pressing portion 2 is provided at the center of the lower surface of the pressing portion 211, 221.
Protrusion 21 having an outer diameter smaller than the inner diameters of 11 and 221
The click plates 23 and 24 provided on the switch contacts 13 and 14 to be turned on next are made of elastic rubber provided with Nos. 2 and 222, and are made of metal plates curved upward.

[0007]

When the end portion of the key top 3 is pressed, the inner protrusion 31 (or 32) provided on the lower surface of the key top 3 presses the click plate 21 (or 22), and the flexible substrate 1 of the flexible substrate 1 is generated while generating a click feeling. Switch contact 11 (or 1
2) Press to turn it on. If the key top 3 is pressed further, the outer protrusion 33 (or 34) of the key top 3 is pressed.
Presses the click plate 23 (or 24) to generate a click feeling, and the switch contact 1 of the flexible substrate 1
Press 3 (or 14) to turn it on. At this time, the click plate 21 (or 22) has the inner protrusion 31 (or 32).
Is further pressed by the projections 212 (or 222) of the click plate 21 (or 22) is press pressure portion 211 (also
221) is inserted into the hollow inside, so switch contact
The pressing force of the key top 3 when turning on 13 (or 14) can be moderate and not so strong. It should be noted that a click sensation occurs when either the first stage switch or the second stage switch is turned on.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a view showing a two-stage seesaw switch 1 with a click according to the present invention, wherein FIG. 1 (a) is a schematic side sectional view and FIG. 1 (b) is a perspective view. As shown in the figure, the clickable two-stage seesaw switch 1 has a flexible substrate 1 having flexibility on a base 8 made of synthetic resin.
Is placed, four click plates 21, 22, 23, 24 are placed on the flexible substrate 1, and a key top 3 which can be swung in the direction of arrow A is placed thereon. . And if you press, for example, the right end of the key top 3,
The inner protrusion 31 provided on the lower surface of the key top 3 presses the click plate 21, and when the key top 3 is further pressed, the outer protrusion 33 presses the click plate 23. Hereinafter, each component will be described.

FIG. 2 is an exploded perspective view of the clickable two-stage seesaw switch 1. As shown in the figure,
The base 8 is made of a synthetic resin plate, and support plates 81 and 82 are provided upright in the central portions of both side edges thereof.
There are holes 83, 84 for rotatably supporting the support shafts 35, 36 of the key top 3 described below.

The key top 3 is formed in a shape in which the lower surface of a substantially rectangular box body is opened, and support bars 35 and 36 project from the central portion in the width direction. In addition, cylindrical inner protrusions (click pressing portions) 31 and 32 respectively project downward in central portions on both sides of the lower surface of the key top 3. Further, column-shaped outer protrusions (click pressing portions) 33 and 34 project downward in both corners of the lower surface of the key top 3, respectively.

FIG. 3 is an exploded perspective view showing a state in which the click plates 21, 22, 23 and 24 are mounted on the flexible substrate 1. In FIG. 3, the flexible substrate 1
Forms a circuit pattern (not shown) on each of two flexible synthetic resin films (1b and 1c shown in FIG. 5), and a spacer layer (see FIG. It is constructed by superimposing via 1a) shown in FIG. Then, the contact patterns (1d, 1e, 1f, 1g shown in FIG. 5) provided at predetermined positions of the circuit pattern are made to face each other so that four switch contacts 11, 12, 13, 1 are formed.
4 are formed. Notches 15 and 16 for penetrating the support plates 81 and 82 of the base 8 are provided on the side edges thereof.

The click plates 21 and 22 are integrally formed at both end portions of a rubber plate 25 having a rectangular elasticity, and each of them has a bowl-like shape. 4 is shown in FIG.
5 is a cross-sectional view of the rubber plate 25 shown in FIG. As shown in the figure, these click plates 21 and 22 are provided with cylindrical pressing portions 211 and 221 on their upper surfaces, respectively, and a cylindrical projection 2 is formed at the center of the lower surface of the pressing portions 211 and 221.
12, 222 are provided and configured. Here, in this embodiment, the inner diameters of the pressing portions 211 and 221 are the protrusions 2
It is configured to be slightly larger than the outer diameter of 12,222.
Moreover, the side walls 213 and 223 of the click plates 21 and 22 are formed thin so as to be bendable. A cover 26 shown in FIG. 3 is placed on the rubber plate 25. The cover 26 has two circular holes 26 penetrating the click plates 21 and 22.
1, 262 are provided.

Next, the click plates 23 and 24 are made of an elastic metal plate, and are formed in the shape of a disk-shaped dish, as shown in FIG.

Next, a method for assembling the clickable two-stage seesaw switch 1 will be described.

First, as shown in FIG. 3, the click plate 2 is provided on each of the switch contacts 13 and 14 of the flexible substrate 1.
3, 24 are placed, and these are fixed with adhesive tapes 27, 28.

Next, the switch contact 1 of the flexible substrate 1
The rubber plate 25 is placed so that the click plates 21 and 22 are positioned on the plates 1 and 12, and the cover 26 is covered on the rubber plate 25, and the cover 26 is fixed onto the flexible substrate 1 by a predetermined fixing means (not shown).

Next, as shown in FIG. 2, the click plate 21,
The flexible substrate 1 to which 22, 23 and 24 are attached is placed on the base 8.

By covering the key top 3 on the cover 26 and inserting the support shafts 35, 36 into the holes 83, 84 of the base 8, the two-step seesaw switch with click 1 shown in FIG. 1 is completed. At this time, as shown in FIG. 1A, the inner protrusions 31 and 32 provided on the key top 3 are close to the upper surfaces of the pressing portions 211 and 221 of the click plates 21 and 22, respectively, and the outer protrusions 33 and 34 are also disposed. Are opposed to the upper portions of the click plates 23 and 24 with a predetermined space therebetween.

Next, the operation of the clickable two-stage seesaw switch 1 will be described. Here, FIGS.
It is a figure for demonstrating operation | movement when pressing the right end of the key top 3 shown to Fig.1 (a) in the arrow C direction, FIG. 5 is a principal part side sectional view which shows the state before pressing, FIG. 6 is a key. FIG. 7 is a cross-sectional view of an essential part showing a state in which the top switch 3 is pressed to turn on the first-stage switch, and FIG. 7 is a main-part side view showing a state of further pressing to turn on the second-step switch.

First, when the key top 3 is pressed in the direction of arrow C from the state shown in FIG. 5, the inner protrusion 31 of the key top 3 is pushed.
Presses the pressing portion 211 of the click plate 21, and the side wall 213 of the click plate 21 is deformed as shown in FIG.
11 is moved downward. At this time, a click feeling occurs, and the projection 212 of the click plate 21 presses the switch contact 11 of the flexible substrate 1 to cause the spacer 1a to move.
The contact patterns 1d and 1e provided on the opposing films 1b and 1c are turned on (that is, the first-stage switch is turned on). Also at this time, the outer protrusion 3 of the key top 3
3 is close to the upper surface of the click plate 23.

Next, when the key top 3 is further strongly pressed in the direction of arrow C, the outer protrusion 33 of the key top 3 presses the click plate 23, and the click plate 23 is inverted as shown in FIG. At this time, a click feeling occurs, and
The lower surface of the click plate 23 presses the switch contact 13 to turn on between the contact patterns 1f and g provided on the films 1b and 1c (that is, the second-stage switch turns on). At this time, the click plate 21 is further pressed by the inner protrusion 31, but since the click plate 21 is made of elastic rubber, the click plate 21 is further crushed with the switch contact 11 turned on as shown in FIG. Become. Particularly, in this embodiment, the pressing portion 211 of the click plate 21 is formed in a cylindrical shape, and the projection 212 provided on the lower surface of the pressing portion 211 is provided in the central portion of the cylinder (particularly in this embodiment). Since the inner diameter of the pressing portion 211 is made larger than the outer diameter of the protrusion 212), the pressing portion 211 easily bends outward when the click plate 21 is crushed, and the upper end portion of the protrusion 212 has a pressing portion. It becomes easy to sink into the inside of 211. That is, the pressing force for crushing the click plate 21 can be set to an appropriate value, and thus the pressing force for turning on the second-stage switch can be set to an appropriate value.

When the pressing of the key top 3 in the C direction is released, the state of FIG. 7 is returned to the states of FIGS. 6 and 5. At this time also, a click feeling occurs at each stage.

The same applies to the case where the opposite end of the key top 3 shown in FIG. 1 is pressed.

Although the flexible substrate 1 is used as the substrate in the above embodiment, the present invention is not limited to this, and a structure in which switch contacts are provided on a hard substrate may be used.

In the above embodiment, the click plate is arranged above the switch contact, but the click plate itself may be used as one of the switch contacts.

Further, in the above embodiment, the click plate 2
The arrangement positions of 3, 24 are not on the outside of the straight line connecting the click plates 21, 22 in order to reduce the dimension of the two-stage seesaw switch with click 1 in the longitudinal direction.

Further, in the above embodiment, the key top 3
2 according to the present invention on both sides of the support shafts 35, 36 of
Although the step switch is provided, the two-step switch may be provided only on one side of the support shafts 35 and 36 of the key top 3.

[0028]

As described in detail above, the two-step seesaw switch with a click according to the present invention has the following excellent effects.

A click sensation is generated both when the first-stage switch is pressed and when the second-stage switch is pressed.

The structure is simple, the number of parts is small, the assembly is easy, and the cost can be reduced. The click plate for the switch in the first step is the switch in the second step.
When you try to turn on the
Crushed. For this reason, turn on the second-stage switch.
For the pressing force of the key top for
Generally, a fairly strong force is required because the crushing force is superimposed.
Not only that, but in the worst case, the first-stage switch
The crushed click plate after turning on works as a stopper
It becomes difficult to press the second-stage switch. Because of this
A key top strobe for pressing the second switch
You can't make the talk longer. However, in the case of the present invention,
Inner diameter of the substantially cylindrical pressing part provided on the elastic rubber click plate
Since a protrusion with an outer diameter smaller than the
When turning on the chi, the upper end of the protrusion of the first click plate
It fits into the hollow inside of the pressing part, and
If the pressing force of the key top when turning on the
Not only there, but also the key to press the second switch
The pressing stroke of the top can be lengthened.

[Brief description of drawings]

1A and 1B are views showing a two-step seesaw switch with a click 1 according to the present invention, wherein FIG. 1A is a schematic side sectional view and FIG. 1B is a perspective view.

FIG. 2 is an exploded perspective view of a two-step seesaw switch 1 with a click.

[Fig. 3] Click plates 21 and 2 on the flexible substrate 1
It is a disassembled perspective view which shows the state which attaches 2,23,24.

FIG. 4 is a cross-sectional view of the rubber plate 25 shown in FIG. 3, taken along the line BB.

FIG. 5 is a diagram for explaining the operation of the clickable two-stage seesaw switch 1.

FIG. 6 is a diagram for explaining the operation of the clickable two-stage seesaw switch 1.

FIG. 7 is a view for explaining the operation of the clickable two-stage seesaw switch 1.

[Explanation of symbols]

 1 Flexible substrate (substrate) 11, 12, 13, 14 Switch contact 21, 22, 23, 24 Click plate 3 Key top 31, 32 Inner protrusion (projection) 33, 34 Outer protrusion (projection)

Claims (1)

(57) [Scope of utility model registration request] 1. A key top provided with two click pressing portions on at least one side of the shaft so that a substantially central portion of the plate body can be rocked, and the key arranged below the key top. A top plate provided with switch contacts at positions facing the respective click pressing parts of the top, and a click plate mounted on the switch contacts of the board, and pressing one side of the key top. almost your first click is provided on the switch contacts of the person to be on board when
The click pressing part is formed on the upper surface of the bowl
A substantially cylindrical pressing portion to be pressed by
Has an outer diameter smaller than the inner diameter of the pressing part in the center of the lower surface of
A two-stage seesaw switch with a click, characterized in that it is made of elastic rubber provided with a protrusion, and that the click plate provided on the switch contact of the one to be turned on next is made of a metal plate curving upward.