JPH0555430U - Multi-stage seesaw switch with click - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a multi-stage seesaw switch with a click that can turn on and off a multi-step switch and produces a click sensation when any switch is turned on. [Structure] A key top 30 axially supported so as to be swingable right and left around a central axis and provided with pressing portions 34 and 35 on its lower surface.
And an elastic plate 40 in which only the central portion is fixed to the back surface of the key top 30 and pressing portions 41 and 42 are provided on the lower surfaces near both ends thereof.
And the pressing portions 3 of the key top 30 and the elastic plate 40, respectively.
Substrate 20 provided with switch contacts 21, 23, 22, 24 at positions facing 4, 41, 35, 42, and click plates 26, 28, 27, mounted on switch contacts 21, 23, 22, 24, respectively. And 29. When the key top 30 is pressed, the pressing portions 41, 4 of the elastic plate 40
After the switch 2 turns on the switch contacts 21 and 22, the pressing portions 34 and 35 of the key top 30 are connected to the other switch contacts 23 and 24.
Arrange each member to turn on.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a multi-stage seesaw switch, and more particularly to a multi-stage seesaw switch with a click that produces a click sensation when any switch is turned on.

[0002]

[Problems to be Solved by Prior Art and Invention]

 Conventionally, some seesaw switches have a structure in which when the end of the key top that can be swung like a seesaw is pressed, the first-stage switch is turned on first, and when it is pressed with a stronger force, the second-stage switch is turned on. There is a two-stage seesaw switch. This kind of two-stage seesaw switch is used, for example, as a zoom switch of a video camera.

However, the conventional two-stage seesaw switch has a problem in that its structure is complicated, the manufacturing cost is increased, and the thickness thereof is increased. In addition, there is no conventional two-stage seesaw switch that is configured to generate a click sensation when the first-stage switch is turned on and when the second-stage switch is turned on. The advent of seesaw switches with clicks was desired.

Conventionally, there is no three-stage seesaw switch in which the third-stage switch is turned on by pressing the key top after the second-stage switch is turned on. For example, the zoom speed of a video camera is set to three stages. The development was requested to switch to.

The present invention has been made in view of the above points, and an object thereof is to enable multistage switch on / off, a click feeling when any switch is turned on, and a simple structure. It is to provide a multi-stage seesaw switch with a click that can be made thinner.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, a multi-stage seesaw switch 10 with a click according to the present invention is pivotally supported so as to be swingable right and left around a central axis, and a pressing portion 34 (at a lower surface on at least one side of the central axis). 35) provided with a key top 30 and a predetermined portion thereof is fixed to a predetermined position on the back surface of the key top 30 so that the end portion becomes a free end, and a pressing portion 41 (42) is provided on the lower surface near the end portion. Elastic plate 40 and the switch contacts 21, 23 (positioned below the key top 30 and facing the pressing portions 34, 41 (35, 42) of the key top 30 and elastic plate 40, respectively. 22 and 24) and a click plate 26, 28 (27, 29) mounted on each switch contact 21, 23 (22, 24) of the substrate 20. Thirty When the pressing portion 41 (42) of the elastic plate 40 turns on the switch contact 21 (22) when pressed, the pressing portion 34 (35) of the key top 30 turns on the other switch contact 23 (24). Each member was arranged.

Further, the multi-stage seesaw switch 50 with a click according to the present invention is pivotally supported so as to be able to swing left and right about a central axis, and has three pressing portions 83, 85, on the lower surface on at least one side of the central axis. A key top 80 including 87 (84, 86, 88), and one end fixed to a predetermined stationary member and the other end being a free end, and a pressing portion 95 (96) provided on the lower surface of the key top 80. The elastic plate 93 (94) that is pressed by the pressing portion 87 (88) provided on the key 80, and the two pressing portions 83 of the key top 80 that are arranged below the key top 80 and the elastic plate 93 (94). , 85 (84, 86) and a position where switch contacts 71, 69, 67 (72, 70, 68) are provided at positions facing the pressing portion 95 (96) of the elastic plate 93 (94), respectively. 60 and , Click plates 76, 65, 63 (77, 66, 64) mounted on the switch contacts 71, 69, 67 (72, 70, 68), and the keys when the key top 80 is pressed. After one pressing portion 83 (84) of the top 80 turns on the switch contact 71 (72), the pressing portion 95 (96) of the elastic plate 93 (94) changes the other switch contact 67 (68). The switch which is first turned on by the key top 80 is arranged so that the other pressing portion 85 (86) of the key top 80 is turned on and then the other switch contact 69 (70) is turned on. The click plate 76 (77) disposed on the contact 71 (72) is made of a rubber material.

[0008]

[Action]

 If the clickable multi-stage seesaw switch 10 is constructed as described above and one end of the keytop 30 is pressed, the keytop 30 swings and the pressing portion 42 of the elastic plate 40 first presses the click plate 27. Then, the click plate 27 is inverted and the switch contact 22 of the flexible board 20 is turned on. Next, when the key top 30 is further strongly pressed to further swing the key top 30, the pressing portion 35 presses the click plate 29, the click plate 29 is also inverted, and the switch contact 24 is also turned on. R. At this time, the elastic plate 40 further swings and tries to press the click plate 27 and the switch contact 22 with an excessive pressing force by the pressing portion 42, but since the elastic plate 40 has an elastic force, the elastic plate 40 is Bending upward by the excessive swing angle prevents excessive pressing of the click plate 27.

On the other hand, when the multi-stage seesaw switch with click 50 is constructed as described above and one end of the key top 80 is pressed, the key top 80 swings and the pressing portion 84 presses the click plate 77 first. Then, a click feeling is generated and the switch contact 72 is pressed to turn it on. Next, if the key top 80 is further strongly pressed, the pressing portion 88 presses the elastic plate 94 downward and bends it downward, whereby the pressing portion 96 of the elastic plate 94 presses the click plate 64. Reverse this. At this time, a click feeling occurs and the switch contact 68 is turned on. At this time, the click plate 77 is further crushed by the pressing portion 84. Next, when the key top 80 is further strongly pressed, the pressing portion 86 presses the click plate 66, reverses it, and turns on the switch contact 70. At this time, the elastic plate 94 further swings and tries to excessively press the click plate 64 by the pressing portion 96. However, since the elastic plate 94 has an elastic force, the elastic plate 94 has an excessive swing angle. Tilt, which prevents excessive pressing of the click plate 64. On the other hand, at this time, the click plate 77 is further crushed.

[0010]

【Example】

 [First Invention] FIG. 1 is an exploded perspective view showing a two-stage seesaw switch 10 with a click according to the first invention of the present application. FIG. 2 is a sectional view taken along the line AA shown in FIG. 1 when the two-step seesaw switch with click 10 is assembled.

As shown in both figures, in this two-stage seesaw switch with click 10, a flexible substrate 20 having flexibility is placed on a base 15, and four click plates 26, 27 are mounted on the flexible substrate 20. , 28, 29 are placed, and a key top 30 is arranged on the key top 28. The central portion of the elastic plate 40 is fixed to the lower surface of the key top 30. Each component will be described below.

The base 15 is a flat plate made of synthetic resin.

The flexible substrate 20 has a circuit pattern (not shown) formed on each of two flexible synthetic resin films, and a spacer layer (not shown) with the surface provided with the circuit pattern inside. ) Are superimposed on each other. Then, four switch contacts 21, 22, 23, 24 are formed by facing contact patterns (not shown) provided at predetermined positions of both circuit patterns.

Each of the click plates 26, 27, 28, 29 is made of an elastic metal plate, and is formed in a shape with a disc-shaped plate.

The key top 30 is made of a synthetic resin and is formed in a shape in which a lower surface of a substantially rectangular box body is opened, and support bars 31 and 31 project from both side surfaces of the center thereof outward in the width direction. There is. Further, two triangular plate-shaped projecting plates 32 and 33 project from one side surface of the key top 30, and projecting pressing portions 34 and 35 project from the lower surface thereof. The pressing portions 34 and 35 are provided at positions facing the switch contacts 23 and 24.

The elastic plate 40 is formed by elongating a thin plate made of synthetic resin, and the lower surfaces of both ends thereof are provided with projecting pressing portions 41 and 42 for pressing the switch contacts 21 and 22, respectively. It is provided. Further, two through holes 43 and 44 are provided in the center thereof. As shown in FIG. 2, the through holes 43 and 44 are inserted into two protrusions 36 and 36 (however, one protrusion 36 is not shown) protruding downward from the center of the lower surface of the key top 30. .. The elastic plate 40 is fixed to the lower surface of the key top 30 by caulking the tips of the protrusions 36, 36 with heat. In other words, the elastic plate 40 is in a state where the central portion is fixed and both ends are free ends.

Next, in order to assemble the two-step seesaw switch 10 with click, as shown in FIG. 1, first, the flexible board 20 having the click plates 26, 27, 28, 29 mounted on the base 15 is placed. (Adhesive tape is used to fix the click plate, but it is not shown). Next, the keytop 30 having the elastic plate 40 fixed thereon is placed on the flexible substrate 20. Then, a case (not shown) is covered on the key top 30, and the support shafts 31 and 31 of the key top 30 are swingably attached to a supporting portion (not shown) provided on the case, and then the assembling work is completed. To do.

As a result, the pressing portions 41, 42, 34 and 35 are arranged on the click plates 26, 27, 28 and 29, respectively. The size of each component is set so that the gap between the pressing portions 34 and 35 and the click plates 28 and 29 after assembly is larger than the gap between the pressing portions 41 and 42 and the click plates 26 and 27.

Next, the operation of the clickable two-stage seesaw switch 10 will be described. Here, FIG. 3 is a diagram showing an operation when the right end of the key top 30 shown in FIG. 2 is pressed in the direction of arrow B.

First, when the key top 30 is pressed in the direction of arrow B from the state shown in FIG. 2 to swing the key top 30, as shown in FIG. 3A, the pressing portion 42 of the elastic plate 40 is first closed. The lick plate 27 is pressed, the click plate 27 is inverted, and the switch contact 22 of the flexible substrate 20 is turned on. That is, the first stage switch is turned on. At this time, although not shown, the pressing portion 35 shown in FIG. 1 is close to the click plate 29.

Next, if the key top 30 is further strongly pressed in the direction of the arrow B to further swing the key top 30, the pressing portion 35 shown in FIG. 1 presses the click plate 29, and the click plate 29 is pressed. 29 is also reversed, and the switch contact 24 of the flexible board 20 is also turned on. That is, the second stage switch is turned on. At this time, as shown in FIG. 3B, the key top 30 is further swung by a predetermined angle, and the pressing portion 42 of the elastic plate 40 tries to press the click plate 27 with a stronger force excessively. In the present invention, since the elastic plate 40 is provided with elasticity, the elastic plate 40 is curved upward by the excessive swing angle θ thereof, thereby preventing the click plate 27 from being excessively pressed. The pressing force for pressing the step switch can be made appropriate. Further, in this embodiment, since the click plates 27 and 29 made of the same metal plate are used for both the first-stage switch and the second-stage switch, the click sensation does not occur when any switch is turned on. It will be similar.

When the pressing of the keytop 30 in the B direction is released, the state shown in FIG. 3B is returned to the states shown in FIGS. 3A and 2. Also at this time, a click sensation occurs at each stage.

The case where the opposite end of the key top 30 shown in FIG. 2 is pressed is similar to the above case.

In the above-described embodiment, the arrangement position of the pressing portions 34, 35 of the key top 30 and the switch contacts 23, 24 is not on the outside on the straight line connecting the switch contacts 21, 22. This is to reduce the size of the seesaw switch 10 in the longitudinal direction.

By the way, in the above embodiment, the two-stage seesaw switch is configured by fixing only one elastic plate 40 to the lower surface of the key top 30, but by increasing the number of the elastic plates, a multi-stage seesaw is further provided. Switches can be configured.

That is, for example, two elastic plates having different elastic forces are attached to the lower surface of the key top (the elastic plates can be changed in length or thickness or width in order to have different elastic forces). This seesaw switch can be made into a three-stage seesaw switch by providing a pressing portion at the tip and attaching a switch contact and a click plate on the flexible substrate under each elastic plate. In this case, if the key top is swung, the pressing portion of the elastic plate with the weaker elastic force first turns on the first switch contact, and the pressing portion of the elastic plate with the stronger elastic force then moves to the second switch. The contact is turned on, and finally the pressing portion directly provided on the key top turns on the third switch contact.

[Second Invention] FIG. 4 is an exploded perspective view showing a three-stage seesaw switch 50 with a click according to a second invention of the present application. As shown in the figure, in this clickable three-stage seesaw switch 50, a flexible substrate 60 having flexibility is placed on a base 55, and six click plates 76, 77, 63, 64, 65, 66 and a case 90 are attached, and a key top 80 is arranged on the case 90. Each component will be described below.

The base 55 is composed of a flat plate made of synthetic resin, and support plates 56 and 57 are erected on the upper surfaces of the central portions of both sides thereof, and the support plates 56 and 57 are provided with holes 58 and 59. It is being done.

The key top 80 is formed in a shape in which the lower surface of a substantially rectangular box body is opened, and support rods 81 and 82 project from the center portion thereof in the width direction. On the other hand, pressing portions 83, 84 projecting downward are provided at central portions on both sides of the lower surface of the keytop 80, and downward surfaces are provided on lower surfaces of both longitudinal ends of the keytop 80. Protruding pressing portions 85 and 86 are provided, and further pressing portions 87 and 88 protruding downward are provided on the lower surface of one side of the key top 80.

FIG. 5 is an exploded perspective view showing a state in which the click plates 76, 77, 63, 64, 65, 66 and the case 90 are mounted on the flexible substrate 60.

In the figure, the flexible substrate 60 is constructed in the same structure as the flexible substrate 20 shown in FIG. 1, and six switch contacts 67, 68, 69, 70, 71, 72 are formed at predetermined positions thereof. Has been done.

The click plates 76 and 77 are formed integrally with both ends of the rubber plate 75 having a rectangular elasticity, and the shapes thereof are bowl-shaped. Here, FIG. 6 is a cross-sectional view of the rubber plate 75 taken along the line CC. As shown in the figure, these click plates 76 and 77 are provided with cylindrical pressing portions 76a and 77a on their upper surfaces, respectively, and cylindrical projections 76b and 77b are provided on the lower surface central portions of the pressing portions 76a and 77a. It is provided. Here, in this embodiment, the inner diameters of the pressing portions 76a and 77a are slightly larger than the outer diameters of the protrusions 76b and 77b. Further, the side walls 76c and 77c of the click plates 76 and 77 are formed thin so as to be bendable. The click plates 63, 64, 65, 66 are the same as the click plate 26 shown in FIG.

Next, the case 90 is made of synthetic resin, and two circular holes 91 and 92 penetrating the click plates 76 and 77 are provided on the surface thereof, and one side surface of the case 90 projects from the substantially central portion thereof. Two elastic plates 93, 94 extending on opposite sides in the longitudinal direction are formed integrally with the case 90. The elastic plates 93 and 94 are provided on their lower surfaces with pressing portions 95 and 96 that project downward. The tips of the elastic plates 93, 94 are free ends.

Next, in order to assemble the three-step seesaw switch with click 50, first, as shown in FIG. 5, click plates 63, 64, respectively on the switch contacts 67, 68, 69, 70 on the flexible substrate 60. 65 and 66 are placed and fixed (adhesive tape is used to fix the click plate, but not shown). Next, the rubber plate 75 is placed on the switch contacts 71 and 72 so that the click plates 76 and 77 are respectively positioned, and the case 90 is covered thereon, and the case 90 is fixed by a predetermined fixing means (not shown) on the flexible substrate. Fixed on 60. As a result, the pressing portions 95 and 96 of the elastic plates 93 and 94 are arranged on the click plates 63 and 64, respectively.

Next, as shown in FIG. 4, the flexible substrate 60 is placed on the base 55. Then, the key top 80 is covered so as to cover the case 90, and the support shafts 81 and 82 thereof are inserted into the holes 58 and 59 of the base 55, whereby the clickable three-stage seesaw switch 50 is completed.

FIG. 7 is a view showing the assembled three-stage seesaw switch with click 50. FIG. 7A is a schematic plan view (however, only the relationship between each click plate, the case 90, and the key top 80 is shown. ), The same figure (b) is a partially cutaway side view (a cross section is a cross section taken along line D-D of the same figure (a)). As shown in the figure, the pressing portions 83 and 84 of the key top 80 are located close to the click plates 76 and 77, respectively, and the pressing portions 87 and 88 are respectively upper portions near the tips of the elastic plates 93 and 94. And the pressing portions 85 and 86 are located on the click plates 65 and 66, respectively, at a distance larger than the distance between the pressing portions 87 and 88 and the elastic plates 93 and 94. There is.

Next, the operation of the clickable three-stage seesaw switch 50 will be described. Here, FIG. 8 is a diagram showing the operation when the right end of the key top 80 shown in FIG. 7 (b) is pressed, and FIGS. 8 (a), (b), and (c) are 1, 2 and 3 respectively. FIG. 6 is a side view of a main part showing a state when a tiered switch is turned on. Further, FIGS. 9A, 9B, and 9C are side sectional views showing the state of the click plate 77 when the first, second, and third stage switches are turned on.

When the key top 80 is pressed in the direction of the arrow E from the state shown in FIG. 7B, the key top 80 swings as shown in FIG. 9A, the side wall 77c of the click plate 77 is deformed to move the pressing portion 77a downward. At this time, when a click feeling is generated, the protrusion 77b of the click plate 77 presses the switch contact 72 of the flexible substrate 60 to turn it on. At this time, as shown in FIG. 8A, the pressing portion 88 of the key top 80 is close to the upper surface near the tip of the elastic plate 94.

Next, when the key top 80 is further strongly pressed, the pressing portion 88 presses the vicinity of the tip end of the elastic plate 94 downward and bends it downward, which is shown in FIG. As described above, the pressing portion 96 of the elastic plate 94 presses the click plate 64 and reverses it. At this time, a click feeling occurs, and the lower surface of the click plate 64 presses the switch contact point 68 (see FIG. 5) to turn it on.

At this time, as shown in FIG. 9B, the click plate 77 is further pressed by the pressing portion 84, but since the click plate 77 is made of elastic rubber, the switch contact 72 is turned on. It will be further crushed. Particularly, in this embodiment, the pressing portion 77a of the click plate 77 is formed in a cylindrical shape, and the protrusion 77b provided on the lower surface of the pressing portion 77a is provided in the central portion of the cylinder (particularly in this embodiment). In the example, the inner diameter of the pressing portion 77a is made larger than the outer diameter of the protrusion 77b.) Therefore, when the click plate 77 is crushed, the pressing portion 77a easily bends outward, and the upper end of the protrusion 77b is It becomes easy to be pushed into the inside of the pressing portion 77a. That is, the pressing force for crushing the click plate 77 can be set to an appropriate value, and even if an excessive pressing force is applied, the switch portion will not be destroyed.

Next, when the key top 80 is further strongly pressed, as shown in FIG. 8C, the pressing portion 86 presses the click plate 66 and reverses it, so that the switch contact 70 (see FIG. 5) is opened. Turn on. At this time, if the elastic plate 94 has no elastic force, the pressing portion 96 further swings and excessively presses the click plate 64 with a strong force to destroy it. However, also in the present invention, since the elastic plate 94 has elasticity, as shown in FIG. 8 (c), only the portion from the pressing portion 96 to the tip of the elastic plate 94 is inclined in the pressing direction, which causes Excessive pressure on the click plate 64 is prevented. On the other hand, at this time, the click plate 77 is further crushed, but as shown in FIG. 9C, the click plate 77 is easily crushed further. Therefore, the pressing force when turning on the third-stage switch can be made appropriate.

When the pressing on the key top 80 is released, the state shown in FIG. 8 (c) is reversed to the state shown in FIG. 8 (b), FIG. 8 (a), and FIG. 7 (b). At this time also, a click feeling occurs at each stage.

Although the embodiments of the clickable multi-stage seesaw switch according to the first and second inventions of the present application have been described above, the present invention is not limited to these, and the following modifications are possible. In the embodiments of the above inventions, a flexible substrate is used as the substrate, but a substrate having a structure in which a switch contact is directly provided on a hard substrate may be used as the substrate.

In the embodiments of the above inventions, the multi-step switches are provided on both sides of the support shaft of the key top, but the multi-step switch may be provided only on one side of the support shaft of the key top.

Further, in each of the embodiments of the above inventions, an example in which the click plate is arranged on the switch contact has been shown, but the click plate itself may be used as one of the switch contacts, that is, the movable contact plate. good. That is, the point is that a click plate or a click plate with a movable contact that produces a click sensation when pressed from above is sufficient.

[0046]

[Effects of the Invention] As described in detail above, according to the multi-stage sea source switch with click according to the present invention, the following excellent effects are obtained.

A multi-step switch can be turned on / off according to the pressing force, and a click feeling is generated at each step.

The structure is simple, the number of parts is small, and the thickness can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a two-step seesaw switch with a click 10 according to a first invention of the present application.

FIG. 2 is a sectional side view taken along the line AA shown in FIG. 1 when the clickable two-stage seesaw switch 10 is assembled.

FIG. 3 is a diagram showing an operation when the right end of the key top 30 shown in FIG. 2 is pressed in the direction of arrow B.

FIG. 4 is an exploded perspective view showing a 3-step seesaw switch with a click 50 according to a second invention of the present application.

FIG. 5: Click plates 76, 7 on the flexible substrate 60
It is an exploded perspective view showing the state where 7, 63, 64, 65, 66 and case 90 are attached.

FIG. 6 is a cross-sectional view of the rubber plate 75 taken along the line C-C.

FIG. 7 is a view showing a three-stage seesaw switch with click 50.

FIG. 8 is a diagram showing an operation of the keytop 80.

FIG. 9 is a side sectional view of an essential part showing a state of the click plate 77 when the first, second and third stage switches are turned on.

[Explanation of symbols]

 10 2-step seesaw switch with click 20 Substrate 21, 22, 23, 24 Switch contact 26, 27, 28, 29 Click plate 30 Key top 34, 35, Pressing part 40 Elastic plate 41, 42 Pressing part 50 3-step seesaw with click Switch 60 Substrate 63, 64, 65, 66, 76, 77 Click plate 67, 68, 69, 70, 71, 72 Switch contact 80 Key top 83, 84, 85, 86, 87, 88 Pressing part 93, 94 Elastic plate 95, 96 Pressing part

Claims (2)

[Scope of utility model registration request] 1. A key top having a pressing portion provided on a lower surface on at least one side of the central shaft so as to be swingable right and left around the central shaft, and a key top having a free end. An elastic plate having a predetermined portion fixed to a predetermined position on the back surface of the key top and provided with a pressing portion on the lower surface near the end portion; A substrate provided with switch contacts at opposite positions, and a click plate mounted on each switch contact of the substrate, the pressing portion of the elastic plate turned on the switch contact when the key top was pressed. A multi-stage seesaw switch with a click, wherein each member is arranged so that the pressing portion of the key top later turns on another switch contact. 2. A key top, which is pivotally supported to the left and right about a central axis and has three pressing portions on the lower surface of at least one side of the central axis, and one end of which is fixed to a predetermined stationary member. And an elastic plate whose other end is a free end and a pressing part is provided on the lower surface thereof and whose upper surface is pressed by one of the pressing parts provided on the key top, and which is arranged below the key top and the elastic plate. And a substrate provided with switch contacts at a position facing two pressing parts that do not press the elastic plate of the key top and a position facing the pressing part of the elastic plate, and mounted on each switch contact of the substrate. A click plate, wherein when the key top is pressed, one pressing part of the key top turns on the switch contact, the pressing part of the elastic plate turns on another switch contact, and then a key is pressed. Each member is arranged so that the other pressing portion of the top turns on the other switch contact, and the click plate arranged on the switch contact which is turned on first by the key top is made of a rubber material. Multi-stage seesaw switch with a click.