JP2013026093A - Switch device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a switch device with a pre-sense function, in which a first contact is connected by a slight pressing operation and then a second contact is connected by a pressing operation with a clear feeling.SOLUTION: A switch device according to the present invention comprises: a movable contact 2; an elastic body 3 arranged on the movable contact 2; an operation body 4 that is press-operated to actuate the elastic body 3; and a case 1 that is provided with a housing part 1a for housing the movable contact 2, the elastic body 3 and the operation body 4, and has a first stationary contact 1b, a second stationary contact 1c and a third stationary contact 1d at an inner bottom part of the housing part 1a. By press-operating the operation body 4, the elastic body 3 moves almost in parallel, and the first stationary contact 1b and the second stationary contact 1c are in electric contact via the movable contact 2, and therefore, a first contact is connected. By further press-operating the operation body 4, the dome part 3c is reversed to press a tongue piece part 2c, and the first stationary contact 1b, the second stationary contact 1c and the third stationary contact 1d are in electric contact via the movable contact 2, and therefore, a second contact is connected.

Description

  The present invention relates to a pressing operation type switch device used as an input means of various electronic devices, and in particular, the first contact is connected with a very small amount of pressing operation, and then the pressing operation with a clear touch is performed. The present invention relates to a switch device with pre-sense to which a second contact is connected.

  Conventionally, there have been proposed various small switch devices configured such that when a dome-shaped movable contact is pressed, the movable contact is reversed with a click feeling and is electrically connected to a fixed contact.

  In such a switch device, the center fixed contact and the outer fixed contact are usually arranged apart from each other on the inner bottom surface of the case, and the dome-shaped movable contact faces the center fixed contact with the center fixed contact. It is mounted on the inner bottom surface of the housing in a state where the peripheral portion is always in contact with the outer fixed contact. When the central portion of the movable contact is pressed, the movable contact is reversed, the central fixed contact and the outer fixed contact are conducted through the movable contact, and a click feeling is generated by the reversing operation of the movable contact. It is like that.

  This type of switch device is used in various applications as an input means for electronic equipment. In some applications, the first contact is connected when the switch device is touched, and then the switch device is pressed. Therefore, a switch device to which the second contact is connected is required. Hereinafter, a switch device that performs such an operation is referred to as a switch device with pre-sense.

The switch device with a sense is used for various operation switches of an automobile center console, a remote control switch for a visually impaired person, and the like.
In such an application, since the operator operates the device without recognizing the display on the operation surface of the device, the first contact is connected when the operator touches the switch lightly. It is considered that an operation method in which the function is read out to the operator by, for example, a method such as a voice, and the operator can press the switch to perform the intended operation when it is confirmed that the key is intended for the operation is effective.

  In order to realize the operation method as described above, in the switch device with pre-sense, the first contact is connected with a very small operation amount of the pressing operation, and then the first operation is performed with a pressing operation with a clear movement amount. Two contacts are required to be connected. As a switch device that performs such an operation, for example, a switch device described in Patent Document 1 is known.

  As shown in FIG. 11, the conventional switch device described in Patent Document 1 has first contact patterns 102a and 102b and second contact patterns 103a and 103b formed on a substrate 101. A first ring-shaped rubber 104 is enclosed and mounted on the substrate 101, and a first dome-shaped rubber 105 whose upper end is released integrally with the first ring-shaped rubber 104 is projected, and the first dome-shaped rubber 105 is A two-ring rubber 106 is attached, a second dome-shaped rubber 107 is projected from the second ring-shaped rubber 106, and an operation button 108 is projected integrally from the ceiling wall of the second dome-shaped rubber 107. The first movable contact 109 is attached to the bottom surface of the second ring-shaped rubber 106, and the second movable contact 110 is attached to the ceiling surface of the second dome-shaped rubber 107.

When the operation button 108 is pressed by applying an external force, the first dome-shaped rubber 105 is first folded back so that the first movable contact 109 comes into contact with the first contact patterns 102a and 102b, and then the second dome-shaped rubber 107 is moved. The second movable contact 110 is folded and comes into contact with the second contact patterns 103a and 103b.
Thereby, it is supposed that the operation amount is increased to easily identify the two-step click feeling.

JP-A-8-111134

  As described above, in the conventional switch device described in Patent Document 1, the first contact is connected by the first pressing operation, and then the second contact is connected by further pressing operation. Stage switch operation is possible. However, in the conventional switch device, the dome-shaped rubber is folded back at the time of the pressing operation so that the movable contact comes into contact with the fixed contact, and it is necessary to press a large amount in order to connect the first contact. In addition, a large operating force was required.

  On the other hand, by reducing the thickness of the dome-shaped rubber or softening the material of the dome-shaped rubber, the first contact can be connected with a light operating force with very little pressing operation. However, in this case, the strength of the dome-shaped rubber is reduced, and when the switch device is repeatedly pressed, the dome-shaped rubber is repeatedly folded, and the rubber may be broken at the folded portion.

  The present invention has been made in view of the actual situation of the prior art. The purpose of the present invention is to connect the first contact point with a very slight pressing operation, and then press the second contact point with a clear touch. It is an object to provide a switch device with pre-sense to which contacts are connected.

In order to solve this problem, in the switch device according to claim 1 of the present invention, a movable contact, an elastic body disposed on the movable contact, an operating body that operates the elastic body by being pressed, A first fixed contact, a second fixed contact, which is provided with a housing portion for housing the movable contact, the elastic body, and the operating body, and which can be brought into and out of contact with the movable contact, and is electrically independent from an inner bottom portion of the housing portion. In a switch device comprising a case having a fixed contact and a third fixed contact,
The movable contact includes a placement portion on which the elastic body can be placed horizontally, a plurality of legs that hold the placement portion away from the inner bottom portion of the case, and the third fixed contact. And a tongue piece
The elastic body includes a standing part arranged in the mounting part, a tongue piece operating part that has a dome part on the top part of the standing part and operates the tongue piece part on a top part of the dome part,
By the pressing operation to the operation body, the elastic body arranged in the mounting portion moves substantially in parallel, and the first fixed contact and the second fixed contact are electrically connected via the movable contact. The dome portion is reversed and the tongue piece operation portion is moved by the further pressing operation on the operation body, and the tongue piece portion is pressed to contact the third fixed contact and the tongue piece portion. The first fixed contact, the second fixed contact, and the third fixed contact are in electrical contact with each other through the movable contact.

  According to this configuration, when the operating body is not pressed, the mounting portion of the movable contact is separated from the inner bottom portion of the case by the plurality of legs, and the movable contact is the first fixed contact and the second fixed contact. However, when the operating body is slightly pressed, the elastic body is moved downward and the movable contact is also moved downward. Thereby, the mounting portion of the movable contact comes into contact with the first fixed contact and the second fixed contact, the first fixed contact and the second fixed contact are electrically connected via the movable contact, and the first fixed contact and the second fixed contact are connected. A first contact constituted by a fixed contact is connected. When the operating body is further pressed, the elastic dome part reverses to cause a click feeling, the operating body and the tongue operating part of the elastic body greatly move downward, and the tongue operating part is a movable contact. By pressing down the tongue piece, the tongue piece comes into contact with the third fixed contact while the mounting portion of the movable contact is in contact with the first fixed contact and the second fixed contact, and is electrically connected. A second contact composed of one fixed contact, a second fixed contact, and a third fixed contact is connected. As a result, it is possible to configure a switch device with a sense, in which the first contact is connected by a very slight pressing operation, and then the second contact is connected by a pressing operation with a clear touch.

  In the switch device according to claim 2 of the present invention, the case is provided with a guide portion, and the guide portion guides at least a part of the elastic body when the elastic body moves substantially in parallel. It is characterized by.

  With this configuration, when the operating body is slightly pressed and the elastic body is moved downward, the elastic body can stably move in parallel, so that the first contact can be reliably connected.

  In the switch device according to a third aspect of the present invention, the case and the operation body have a locking portion for restricting the operation body from moving upward, and the elastic body and the operation body face each other. At least one of the surfaces is provided with an elastic protrusion for urging the operation body in the counter-operation direction.

  With this configuration, it is possible to prevent the operating body from slipping out in the anti-pressing direction, and even when a gap is generated between the locking portion of the case and the locking portion of the operating body, at least one of the elastic body and the operating body. Since the provided elastic protrusion urges in the opposite direction until the locking part of the operating body engages with the locking part of the case, it can be avoided that the operating body becomes unstable when not pressed. A stable pressing operation is possible.

  According to the present invention, it is possible to configure a switch device with a sense, in which the first contact is connected by a very slight pressing operation, and then the second contact is connected by a pressing operation with a clear feel. Become.

It is a disassembled perspective view which shows the structure of the switch apparatus which concerns on embodiment of this invention. FIG. 3A is a plan view of the switch device according to the embodiment of the present invention, and FIG. 2B is a cross-sectional view taken along line AA in FIG. 2A is a cross-sectional view of the switch device according to the embodiment of the present invention taken along the line AA in FIG. 2A, FIG. 2A is a cross-sectional view showing a state where a first contact is connected, and FIG. It is sectional drawing which shows the state which two contacts connected. It is sectional drawing of the AA position of (a) of FIG. 2 which shows the structure of the switch apparatus which concerns on the modification of embodiment of this invention. It is a block diagram of the switch apparatus of the prior art example shown by patent document 1. FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to FIG.

  FIG. 1 is an exploded perspective view showing a configuration of a switch device according to an embodiment of the present invention. As shown in FIG. 1, the switch device includes a case 1, a movable contact 2, an elastic body 3, and an operation body 4.

  The case 1 is a substantially box-shaped part that is formed of a molding material or the like and is open at the top. The opened hollow portion serves as a housing portion 1 a that houses the movable contact 2, the elastic body 3, and the operation body 4. The first fixed contact 1b has a third fixed contact 1d at a substantially central portion of the inner bottom surface of the accommodating portion 1a, and the third fixed contact 1d is sandwiched between the central portion of the inner bottom surface and the inner side surface. And a second fixed contact 1c. Furthermore, it has the substantially ring-shaped seat surface part 1f which protrudes slightly from an inner bottom face on the outer side of the 1st fixed contact 1b and the 2nd fixed contact 1c.

  The first fixed contact 1b, the second fixed contact 1c, and the third fixed contact 1d each extend inside the case 1 and project outside the case 1, thereby forming a terminal portion 1g.

  The movable contact 2 is a part in which a metal material such as stainless steel is formed in a substantially disk shape. The movable contact 2 has a disk-like tongue piece 2c at the center, and a ring-shaped placement portion 2a so as to surround the tongue piece 2c. The tongue piece 2c and the mounting portion 2a are connected by a substantially rectangular connecting portion 2d. A ring-shaped outer peripheral portion 2e is provided on the outer side of the mounting portion 2a, and the outer peripheral portion 2e and the mounting portion 2a are connected by a plurality of leg portions 2b.

  The mounting portion 2a has a plurality of small contact protrusions at portions facing the first fixed contact 1b and the second fixed contact 1c, and also at a portion facing the third fixed contact 1d of the tongue piece portion. It has a plurality of small contact protrusions. In addition, the connection part 2d which connects the tongue piece part 2c and the mounting part 2a is bent in the direction in which the tongue piece part 2c separates from the 3rd fixed contact 1d.

  The elastic body 3 is a part formed of a material rich in elasticity such as rubber. The lower surface side is a substantially cylindrical standing portion 3a, and a hollow substantially conical dome portion 3c is provided above the standing portion 3a. Above the dome portion is a disc-shaped top plate portion 3d. On the lower surface of the top plate portion 3d exposed in the hollow portion of the dome portion 3c, there is a substantially columnar tongue piece operation portion 3b protruding downward.

  The operation body 4 is a substantially box-shaped part formed of a molding material or the like with the lower part opened, and is provided with a substantially cylindrical pressing part 4a projecting downward from the top surface of the opened hollow part.

  Next, an assembly configuration of the switch device according to the embodiment of the present invention will be described with reference to FIG. 2A is a plan view of the switch device according to the embodiment of the present invention, and FIG. 2B is a cross-sectional view taken along line AA of FIG. 2A.

  In this switch device, the movable contact 2 is placed on the seat surface portion 1 f of the inner bottom surface of the housing portion 1 a of the case 1, and the elastic body 3 is mounted so that the standing portion 3 a is in contact with the placement portion 2 a of the movable contact 2. It is assembled by inserting the operating body 4 above the elastic body 3 of the housing portion 1a of the case 1.

  The movable contact 2 is in contact with the seat surface portion 1f whose outer peripheral portion 2e slightly protrudes from the inner bottom surface of the case 1, and the mounting portion 2a is connected to the outer peripheral portion 2e by a plurality of leg portions 2b. 2a is separated from the first fixed contact 1b and the second fixed contact 1c. The tongue piece 2c connected to the placement portion 2a is also separated from the third fixed contact 1d.

  Since the operation body 4 is inserted into the housing portion 1 a of the case 1 and can move in the vertical direction, the top plate portion 3 d of the elastic body 3 placed on the placement portion 2 a of the movable contact 2 and the operation body 4. The operation body 4 is stopped at a position where the lower surface of the pressing portion 4a contacts.

  Next, the behavior when the switch device is pressed will be described with reference to FIG. 2B and FIGS. 3A and 3B.

  FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2A for explaining the contact state of the switch device according to the embodiment of the present invention. FIG. FIG. 3B is a cross-sectional view illustrating a state in which the operating body 4 is further pressed and the second contact point is connected.

  FIG. 2B shows the state before the pressing operation, and the first fixed contact 1b and the second fixed contact 1c constituting the first contact and the mounting portion 2a are separated from each other, and the first fixed contact 1b and the first fixed contact 1b Since the 2 fixed contacts 1c are not electrically connected, the first contact is not connected.

  When the operating body 4 is slightly pressed, the operating body 4 moves downward in the housing portion 1a of the case 1 as shown in FIG. 3A, and the pressing portion 4a is the top plate portion of the elastic body 3. Since 3d is pushed down, the standing portion 3a of the elastic body 3 pushes down the placing portion 2a of the movable contact 2 downward. At this time, the leg portion 2b of the movable contact 2 is elastically deformed, the mounting portion 2a moves downward, and the mounting portion 2a comes into contact with the first fixed contact 1b and the second fixed contact 1c. Thus, the first fixed contact 1b and the second fixed contact 1c are electrically connected by the movable contact 2, and the first contact constituted by the first fixed contact 1b and the second fixed contact 1c is connected.

  By the way, since the leg portion 2b of the movable contact 2 has a shape that can be easily elastically deformed, when the operating body 4 is slightly pressed, as shown in FIG. Since the mounting portion 2a moves downward and contacts the first fixed contact 1b and the second fixed contact 1c, the first contact can be connected with a slight operating force.

  Further, since the outer diameter of the standing portion 3a of the elastic body 3 is guided by the guide portion 1e of the case 1, the elastic body 3 can move in parallel without being inclined, and the first operation can be performed stably. Contacts can be connected. In addition, since the dome portion 3c of the elastic body 3 is not inverted when the first contact is connected, a non-click pre-sense operation can be realized.

That is, in the switch device according to the embodiment of the present invention, the case 1 is provided with the guide portion 1e, and the guide portion 1e guides at least a part of the elastic body 3 when the elastic body 3 moves substantially in parallel. With this configuration, the elastic body 3 can stably move in parallel when the operating body 4 is slightly pressed and the elastic body 3 is moved downward, so that the first contact point Can be reliably connected.

  When the operation body 4 is further pressed, as shown in FIG. 3B, the operation body 4 moves further downward in the housing portion 1a of the case 1, and the pressing portion 4a further pushes down the top plate portion 3d. Eventually, the dome 3c is reversed. A click sensation is generated with the reversing operation of the dome portion 3c, and the tongue piece operating portion 3b is largely moved downward while the placement portion 2a is in contact with the first fixed contact 1b and the second fixed contact 1c. The part 2c is pushed down, and the tongue piece 2c comes into contact with the third fixed contact 1d. Thus, the third fixed contact 1d, the first fixed contact 1b, and the second fixed contact 1c are electrically connected via the movable contact 2, and the first fixed contact 1b and the second fixed contact 1c that are electrically connected are connected. Then, the second contact constituted by the third fixed contact 1d is connected.

  As described above, by the further pressing operation of the operating body 4, the second contact is connected with a clear feeling due to the click feeling associated with the reversing operation of the dome portion 3c and the downward movement of the tongue piece operating portion 3b.

As described above, the switch device according to the embodiment of the present invention includes the movable contact 2, the elastic body 3 disposed on the movable contact 2, and the operating body 4 that operates the elastic body 3 by being pressed. And a movable contact 2, an accommodating portion 1a for accommodating the elastic body 3 and the operating body 4, and a first fixed contact 1b which can be brought into and out of contact with the movable contact 2 and is electrically independent from the inner bottom portion of the accommodating portion. A case 1 having a second fixed contact 1c and a third fixed contact 1d,
The movable contact 2 includes a placement portion 2a on which the elastic body 3 can be placed horizontally, a plurality of legs 2b that hold the placement portion 2a away from the inner bottom portion of the case 1, and a third fixed contact 1d. A tongue piece portion 2c that comes in contact with and leaves,
The elastic body 3 has a standing portion 3a disposed on the placing portion 2a, a dome portion 3c on the top of the standing portion 3a, and a tongue piece operating portion for operating the tongue piece portion 2c on the top of the dome portion 3c. 3b,
By the pressing operation on the operating body 4, the elastic body 3 arranged on the mounting portion 2 a moves substantially in parallel, and the first fixed contact 1 b and the second fixed contact 1 c are electrically connected via the movable contact 2. The dome portion 3c is reversed and the tongue piece operation portion 3b is moved and the tongue piece portion 2c is pushed by the further pressing operation on the operation body 4, and the third fixed contact 1d and the tongue piece portion 2c are brought into contact with each other. Thus, the first fixed contact 1b, the second fixed contact 1c, and the third fixed contact 1d are in electrical contact via the movable contact 2.

  According to this configuration, when the operating body 4 is not pressed, the mounting portion 2a of the movable contact 2 is separated from the inner bottom portion of the case 1 by the plurality of legs 2b, and the movable contact 2 is the first fixed. Although the contact 1b, the second fixed contact 1c, and the third fixed contact 1d are not in contact with each other, when the operating body 4 is slightly pressed, the elastic body 3 is moved downward and the movable contact 2 is also moved downward. Be made. Thereby, the mounting portion 2a of the movable contact 2 comes into contact with the first fixed contact 1b and the second fixed contact 1c, and the first fixed contact 1b and the second fixed contact 1c are electrically connected via the movable contact 2. A first contact constituted by the first fixed contact 1b and the second fixed contact 1c is connected. When the operating body is further pressed, the dome portion 3c of the elastic body 3 is inverted to cause a click feeling, and the operating body 4 and the tongue piece operating portion 3b of the elastic body 3 are largely moved downward, and the tongue piece When the operating portion 3b pushes down the tongue piece 2c of the movable contact 2, the tongue piece 2c is fixed to the third position while the placement portion 2a of the movable contact 2 is in contact with the first fixed contact 1b and the second fixed contact 1c. A second contact configured by the first fixed contact 1b, the second fixed contact 1c, and the third fixed contact 1d, which are in contact with the contact 1d and are electrically connected, is inserted.

  As a result, according to the embodiment of the present invention, the first contact is connected by a very slight pressing operation, and then the second contact is connected by a pressing operation with a clear touch. Can be configured.

<Modification>
Hereinafter, a modification of the embodiment of the present invention will be described with reference to FIG. In addition, about the structure same as embodiment, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  FIG. 4 is a cross-sectional view taken along the line AA of FIG. 2A showing the structure of a switch device according to a modification of the embodiment of the present invention.

  In the switch device according to the modification of the embodiment of the present invention, as shown in FIG. 4, the locking portion 1 h protruding from the inner surface is provided near the upper end of the housing portion 1 a of the case 1 on the two inner surfaces facing each other. Further, in the vicinity of the lower end of the side surface of the operating body 4, the engaging portion 4 b protruding from the side surface is provided on two opposing side surfaces.

  Further, a substantially cylindrical elastic protrusion 3e is provided on the top surface of the top plate portion 3d of the elastic body 3, and the elastic protrusion 3e is inserted into the pressing portion 4a of the operating body 4 facing the top plate portion 3d. A recessed portion 4c is provided. At this time, the depth of the recess 4c is set slightly shallower than the height of the elastic protrusion 3e.

  The operating body 4 is inserted into the housing portion 1a of the case 1 and can be moved in the vertical direction. However, when the operating body 4 moves upward, the engaging portion 1h of the case 1 and the engaging portion 4b of the operating body 4 are eventually used. Are engaged, and the operating body 4 cannot move upward any further. As a result, the operating body 4 can be prevented from coming out of the case 1.

  Further, when the movable contact 2, the elastic body 3 and the operating body 4 are incorporated in the case 1 with the above structure, the elastic protrusion 3e is slightly elastically deformed while the upper surface of the elastic protrusion 3e is the inner bottom surface of the recess 4c. By setting the height of the elastic protrusion 3e so as to abut against the operating body 4, the operating body 4 is urged upward by the elastic protrusion 3e of the elastic body 3, and the engaging portion 4b contacts the locking portion 1h of the case. Stop in contact.

In the switch device according to the present invention, when the movable contact 2, the elastic body 3, and the operation body 4 are incorporated in the case 1, is the engagement portion 1 h of the case 1 and the engagement portion 4 b of the operation body 4 just engaged? The height of each part must be set so that there is a slight gap. This is because if there is no gap between the engaging portion 1h and the operating body 4, the engaging portion 1h and the engaging portion 4b of the operating body 4 are engaged while the operating body 4 is pushed down, so that the movable contact 2 is elastically deformed. This is because, in the worst case, the movable contact 2 comes into contact with the first fixed contact 1b and the second fixed contact 1c, and the switch device may malfunction.
Therefore, it is inevitable that a gap is generated between the engaging portion 1h and the engaging portion 4b.

  For this reason, if there is no structure for urging the operating body 4 upward by the elastic protrusion 3e, there is a gap between the engaging portion 1h and the engaging portion 4b, so that the operating body is operated when the switch device is vibrated. 4 rattles up and down, preventing stable operation.

  On the other hand, in the switch device according to the modification of the embodiment of the present invention, the operating body 4 is biased upward by the elastic protrusion 3e, so that the operating body 4 receives the upward biasing force and is engaged. Since the portion 4b is stopped while being pressed against the locking portion 1h, even when the switch device is vibrated, no rattling or the like occurs and stable operation is possible.

As described above, in the switch device according to the modification of the embodiment of the present invention, the case 1 and the operation body 4 each have the locking portion 1h and the engagement portion 4b for restricting the operation body 4 from moving upward. In addition, since the elastic body 3 and the operation body 4 face each other, the elastic protrusion 3e for biasing the operation body 4 in the counter-operation direction is provided on the upper surface of the elastic body 3,
The operating body 4 can be prevented from slipping out in the counter-pressing direction, and is provided in at least one of the elastic body and the operating body even when a gap is generated between the locking portion 1h of the case 1 and the locking portion of the operating body. Since the elastic protruding portion urged in the counter-pressing direction until the locking portion of the operating body engages with the locking portion of the case, it can be avoided that the operating body becomes unstable when the pressing operation is not performed. A stable pressing operation is possible.

In the modification of the above embodiment, the elastic protrusion 3 e is provided on the upper surface of the elastic body 3. However, the elastic protrusion is provided on the operating body 4 or on both the elastic body 3 and the operating body 4. However, the same effect can be obtained.
Furthermore, even if an urging member for urging the elastic body 3 and the operating body 4 in the separating direction is provided between the elastic body 3 and the operating body 4 as a separate part, it is equivalent to the modification of the embodiment of the present invention. The effect is obtained.

DESCRIPTION OF SYMBOLS 1 Case 1a Accommodating part 1b 1st fixed contact 1c 2nd fixed contact 1d 3rd fixed contact 1e Guide part 1f Seat surface part 1g Terminal part 1h Locking part 2 Movable contact 2a Mounting part 2b Leg part 2c Tongue piece part 2d Connection part 2e Outer peripheral part 3 Elastic body 3a Standing part 3b Tongue piece operation part 3c Dome part 3d Top plate part 3e Elastic protrusion part 4 Operation body 4a Press part 4b Engagement part 4c Indentation part

Claims (3)

A movable contact; an elastic body disposed on the movable contact; an operating body that operates the elastic body by being pressed; and a housing portion that houses the movable contact, the elastic body, and the operating body. And a switch device comprising a case having a first fixed contact, a second fixed contact, and a third fixed contact that can be brought into and out of contact with the movable contact and is electrically independent on the inner bottom of the housing portion.
The movable contact includes a placement portion on which the elastic body can be placed horizontally, a plurality of legs that hold the placement portion away from the inner bottom portion of the case, and the third fixed contact. And a tongue piece
The elastic body includes a standing part arranged in the mounting part, a tongue piece operating part that has a dome part on the top part of the standing part and operates the tongue piece part on a top part of the dome part,
By the pressing operation to the operation body, the elastic body arranged in the mounting portion moves substantially in parallel, and the first fixed contact and the second fixed contact are electrically connected via the movable contact. The dome portion is reversed and the tongue piece operation portion is moved by the further pressing operation on the operation body, and the tongue piece portion is pressed to contact the third fixed contact and the tongue piece portion. The first fixed contact, the second fixed contact, and the third fixed contact are in electrical contact via the movable contact.   The switch device according to claim 1, wherein the case is provided with a guide portion, and the guide portion guides at least a part of the elastic body when the elastic body moves substantially in parallel. .   The case and the operation body have a locking portion for restricting the operation body from moving upward, and the operation body is placed on at least one of the surfaces of the elastic body and the operation body facing each other. The switch device according to claim 1, further comprising an elastic protrusion for urging in a counter-operation direction.