Switching device

Abstract

A switch device according to one aspect of the invention comprises a changeover contact member, a common contact member, a movable contact member, and a holding member. When a direction along the direction of movement of the movable contact member is defined as a first direction, a direction orthogonal to the first direction is defined as a second direction, and a direction orthogonal to both the first direction and the second direction is defined as a third direction, the movable contact member has a main body portion, a pair of contact pieces arranged in the third direction so as to be able to sandwich the changeover contact member therebetween, and a common contact portion that comes into contact with the common contact member, the holding member has a housing portion capable of housing a portion to be housed of the main body portion, and by the portion to be housed being snap-fit to the housing portion, with regard to the main body portion, the holding member restricts a displacement in the first direction and / or a displacement in the second direction while allowing a predetermined displacement in the third direction, thereby making it possible to easily and reliably perform relative alignment between the changeover contact member and the movable contact member.

Description

Technical Field

[0001] The present invention relates to a switch device.

Background Art

[0002] Patent Document 1 discloses a switch device including a housing having a storage portion, an operation member that receives a pressing operation, a plurality of fixed contacts arranged in parallel in the storage portion with a predetermined interval, a plurality of movable contacts having contact portions that slidably contact the fixed contacts, and a snap action mechanism that drives the movable contacts when the operation member is pressed to a predetermined position.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] In a switch device, since the connection state is switched by the movement of the movable contact member with respect to the switching contact member, the relative positional relationship between the switching contact member and the movable contact member is important for performing a reliable switching operation. For this reason, the movable contact member and its holding member are integrally formed by insert molding, but a configuration that can easily and surely align the relative positions of the switching contact member and the movable contact member without using insert molding is desired.

[0005] An object of the present invention is to provide a switch device that can easily and surely align the relative positions of a switching contact member and a movable contact member.

Means for Solving the Problems

[0006] A switch device according to one aspect of the invention comprises a switching contact member having at least two contacts, a common contact member, a movable contact member disposed between the switching contact member and the common contact member and capable of electrically connecting the switching contact member and the common contact member, and a holding member for holding the movable contact member, wherein the movable contact member moves relative to the switching contact member, enabling switching between a first connection state and a second connection state, and in the first connection state, the direction along the direction of movement of the movable contact member is the first direction, the direction along the direction in which the movable contact member extends and perpendicular to the first direction is the second direction, and the first direction and When the third direction is defined as a direction perpendicular to both the first and second directions, the movable contact member has a main body, a pair of contact pieces provided on the main body that extend along the second direction and are arranged in the third direction so as to be able to clamp the switching contact member, and a common contact portion provided on a part of the main body different from the part where the pair of contact pieces are provided and that contacts the common contact member. The holding member has a housing portion that can accommodate the housing portion provided on the main body, and the housing portion snaps into the housing portion, thereby the holding member is a switch device that restricts at least one of the displacement in the first direction or the displacement in the second direction while allowing a predetermined displacement of the main body in the third direction.

[0007] With this configuration, the receiving portion of the main body snaps into the receiving portion of the retaining member, thereby restricting the displacement of the main body relative to the retaining member. In this snap-fit, the direction in which the main body is moved relative to the retaining member to perform the snap-fit ​​is perpendicular to the direction in which the receiving portion moves when it is received into the receiving portion by the snap-fit. Therefore, since no third direction is involved in the series of movements for the snap-fit, the main body can still be displaced in a third direction relative to the retaining member even after snap-fitting.

[0008] In the above-described switch device, the retaining member may further include a slit portion that restricts the displacement of the main body portion in the direction of movement of the portion to be housed when the portion to be housed is housed in the housing portion. With the insertion portion, which is a part of the main body portion different from the portion to be housed, inserted into the slit portion, the portion to be housed snap-fits into the housing portion, thereby restricting the displacement of the main body portion in a first direction and a second direction relative to the retaining member. In this way, by inserting the insertion portion into the slit portion and snap-fitting with the displacement of the main body portion in the direction of movement of the portion to be housed restricted, the possibility of the portion to be housed detaching from the housing portion is reduced.

[0009] In the above-described switch device, the direction of movement of the housing portion when it snaps into the housing portion may be configured to follow the first direction. This restricts the movement of the movable contact member in the second direction when it snaps into place.

[0010] In the above-described switch device, the direction of movement of the housing portion when it snaps into the housing portion may be configured to follow the second direction. This restricts the movement of the movable contact member in the first direction when it snaps into place.

[0011] In the above-described switch device, the configuration may also include a biasing structure that biases the housed portion and the housing portion to elastically contact each other while the housed portion is snap-fitted to the housing portion. When the housed portion and the housing portion are elastically contacted in this way, a force exceeding the frictional force due to the elastic contact is required for the housed portion to displace within the housing portion. As a result, the main body does not displace relative to the holding member even when subjected to some vibration, and contact instability due to vibration is avoided.

[0012] In the above-described switch device, the housing portion and the housing portion may be configured to be elastically in contact along the first direction. By having the biasing direction align with the first direction, the influence of sliding resistance during switching operation is suppressed.

[0013] In the above-described switch device, the retaining member may have multiple housing sections, and the main body may have multiple receiving sections corresponding to each of the multiple housing sections, and each of the multiple receiving sections may snap-fit ​​into the corresponding housing section, thereby restricting the displacement of the main body relative to the retaining member in a first direction and a second direction. In this way, the main body may be held by the retaining member by multiple snap-fits.

[0014] In the above-described switch device, the retaining member may be configured to include a restricting portion that limits the range of displacement of the movable contact member relative to the retaining member in a third direction. Since the movable contact member is displaceable in the third direction, separation in this direction is suppressed by restricting the range of displacement in the third direction with the restricting portion.

[0015] In the above-described switch device, the restricting portion may consist of an intervening portion located in the gap between a pair of contact pieces in a third direction. The intervening portion contacts the contact pieces, thereby restricting the displacement of the movable contact member in the third direction.

[0016] In the above-described switch device, the biasing structure may have a protrusion provided on the holding member and an engaging piece provided on the main body to which the receiving portion is connected. When the receiving portion snaps into the receiving portion, the movement of the receiving portion causes the protrusion and the engaging piece to engage, and elastic deformation occurs in the engaging piece due to the protrusion. This elastic deformation biases the receiving portion connected to the engaging piece in a first direction. As a result, the receiving portion is biased in a first direction when snap-fitting, and rattling of the movable contact member in the first direction after snap-fitting is suppressed.

[0017] In the above-described switch device, the protrusion may have an inclined surface, and as the receiving portion moves when the receiving portion snaps into the receiving portion, the engaging piece slides along the inclined surface, thereby increasing the degree of elastic deformation of the engaging piece. As a result, the biasing force received by the engaging piece increases as the receiving portion moves during snap-fitting.

[0018] In the above-described switch device, the main body may be configured to preferentially undergo elastic deformation when the housing portion snaps into the housing portion. This makes it easier for the main body to elastically deform preferentially to the housing portion when snapping together.

[0019] In the above-described switch device, the movable contact member may be made of a springy metal-based material. When the movable contact member is made of a springy metal-based material, the main body is more likely to undergo preferential elastic deformation when snap-fitting.

[0020] In the above-described switch device, the holding member may be configured to hold a plurality of movable contact members arranged in a third direction. The configuration in which the holding member holds a plurality of movable contact members increases the redundancy of the switch operation.

[0021] In the above-described switch device, the switching contact member may have two independent contact portions, and the first connection state is a first conductive state in which one of the two contacts is electrically connected to the movable contact member, and the second connection state is a second conductive state in which the other of the two contacts is electrically connected to the movable contact member. In this configuration, switching between the first conductive state and the second conductive state is performed by switching the contact between the movable contact member and the two contact portions.

[0022] The above-described switch device may also be configured to include a snap-action mechanism. This snap-action mechanism allows for instantaneous switching between the first connection state and the second connection state.

[0023] In the above-described switch device, the first connection state may be a conductive state in which the contacts of the movable contact member are electrically connected, and the second connection state may be a non-conductive state in which there is no electrical connection to the contacts. This allows switching between the conductive state and the non-conductive state. [Effects of the Invention]

[0024] According to the present invention, it is possible to provide a switch device that can easily and surely perform relative alignment between a switching contact member and a movable contact member.

Brief Description of the Drawings

[0025] [Figure 1] It is an external perspective view of a switch device according to an embodiment. [Figure 2] It is a side view of a switch device according to an embodiment. [Figure 3] It is a plan view of a switch device according to an embodiment. [Figure 4] It is an exploded perspective view of a switch device according to an embodiment. [Figure 5] It is a perspective view of a holding member and a movable contact member. [Figure 6] It is a perspective view showing the holding member and the movable contact member upside down. [Figure 7] It is an exploded perspective view of a holding member and a movable contact member. [Figure 8] It is a diagram for explaining the attachment of the movable contact member to the holding member. [Figure 9] It is a cross-sectional view showing a state where a movable setting member is held by a holding member. [Figure 10A] It is a schematic diagram exemplifying the form of a snap fit. [Figure 10B] It is a schematic diagram exemplifying the form of a snap fit. [Figure 11A] It is a schematic diagram exemplifying the form of a snap fit. [Figure 11B] It is a schematic diagram exemplifying the form of a snap fit. [Figure 12A] It is a schematic diagram exemplifying the form of a snap fit. [Figure 12B] It is a schematic diagram exemplifying the form of a snap fit. [Figure 13A] It is a schematic diagram exemplifying the form of a snap fit. [Figure 13B] It is a schematic diagram exemplifying the form of a snap fit. [Figure 13C] This is a schematic diagram illustrating the snap-fit ​​configuration. [Figure 14A] This is a schematic diagram illustrating the snap-fit ​​configuration. [Figure 14B] This is a schematic diagram illustrating the snap-fit ​​configuration. [Figure 15] This is a schematic diagram illustrating the operation of a switch device. [Figure 16] This is a schematic diagram illustrating the operation of a switch device. [Figure 17] This is a schematic diagram illustrating the operation of a switch device. [Figure 18] This is a schematic diagram illustrating the operation of a switch device. [Figure 19] This is a schematic diagram illustrating the operation of a switch device. [Figure 20] This is a schematic diagram illustrating the operation of a switch device. [Figure 21] This is a schematic diagram illustrating the operation of a switch device. [Figure 22] This is a schematic diagram illustrating the operation of a switch device. [Figure 23] This is a schematic diagram illustrating the operation of a switch device. [Figure 24] This is a schematic diagram illustrating the operation of a switch device. [Figure 25] This is a schematic diagram illustrating the operation of a switch device. [Figure 26] This is a schematic diagram illustrating the operation of a switch device. [Best Mode for Carrying Out the Invention]

[0026] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, the same reference numerals will be used for identical components, and components that have already been described will be omitted from the description as appropriate.

[0027] (Overview of the switch device) Figure 1 is an external perspective view of a switch device according to one embodiment. Figure 2 is a side view of a switch device according to one embodiment. Figure 3 is a plan view of a switch device according to one embodiment. Figure 4 is an exploded perspective view of a switch device according to one embodiment. For convenience, in the following explanation, the Z1-Z2 direction in the diagram will be considered the Z-axis direction (up and down direction), the X1-X2 direction will be considered the X-axis direction (front and back direction), and the Y1-Y2 direction will be considered the Y-axis direction (left and right direction). Furthermore, the Z-axis direction will be considered an example of the "first direction," the X-axis direction an example of the "second direction," and the Y-axis direction an example of the "third direction."

[0028] As shown in Figures 1 to 3, the switch device 100 comprises a case 110, a slider 130, and a holder 150. The case 110 has a hollow structure with an open top and a rectangular parallelepiped shape. The top opening of the case 110 is closed by a flat plate-shaped lid 112.

[0029] As shown in Figure 4, the lid 112 has a circular opening 112A through which the slider 130 passes. A columnar pivot portion 112B is provided on the lower surface of the lid 112, hanging downward. At the lower end of the pivot portion 112B, a first shaft portion 112C is formed, which is downwardly convex with a curved tip. The first shaft portion 112C abuts against the upper bearing surface 161A of the first actuator 161 of the movable unit 160, thereby pivotally supporting the first actuator 161 from above.

[0030] The slider 130 is a generally cylindrical member that is pressed down. The slider 130 is provided through the opening 112A of the lid 112, with a portion of it protruding above the upper surface of the lid 112. The slider 130 is also provided so as to be slidable in the vertical direction (Z-axis direction) relative to the case 110.

[0031] The switch device 100 can switch between conductive and non-conductive states when the slider 130 is pressed. Specifically, the switch device 100 is in a first connected state when the slider 130 is not pressed. When the slider 130 is pressed, the switch device 100 switches to a second connected state. The first connected state may be a first conductive state and the second connected state may be a second conductive state, or the first connected state may be a conductive state and the second connected state may be a non-conductive state.

[0032] The holder 150 is an annular member that covers the upper surface of the lid 112 and surrounds the slider 130. The holder 150 has a pair of hooks 152 that hang downward from its outer peripheral edge. The holder 150 is attached to the case 110 by each of the pair of hooks 152 engaging with each of a pair of claws 114 provided on each of a pair of parallel sides of the case 110. In this way, the holder 150 secures the lid 112 to the case 110. For example, the holder 150 is formed by processing a metal plate.

[0033] (Configuration of the switch device) The switch device 100 comprises a holder 150, a cover 112, a slider 130, a movable unit 160, and a case 110. In other words, in addition to the configuration described in Figures 1 to 3, the switch device 100 includes the movable unit 160 shown in Figure 4 inside the case 110.

[0034] The case 110 has a space 110A with an open top. A portion of the lower side (Z2 side) of the slider 130 and the movable unit 160 are housed within the space 110A. For example, the case 110 is formed by injection molding using a relatively rigid insulating material (e.g., rigid resin).

[0035] The movable unit 160 is composed of multiple movable parts. The movable unit 160 operates in conjunction with the up-and-down movement caused by the pressing operation of the slider 130, thereby switching the switch device 100 between a first connection state and a second connection state by a snap action.

[0036] The movable unit 160 includes a switching contact member 170, a movable contact member 165, and a holding member 166. Figure 5 is a perspective view of the retaining member and the movable contact member. Figure 6 is a perspective view showing the holding member and the movable contact member inverted (rotated 180° around the X-axis). As shown in Figures 5 and 6, the movable contact member 165 and the retaining member 166 are movably mounted relative to the switching contact member 170. For example, the movable contact member 165 and the retaining member 166 are pivotably supported in the case 110 and are mounted to slide relative to the switching contact member 170 by the vertical movement accompanying the pressing operation of the slider 130.

[0037] The base member 180, formed of an insulating material, is provided with at least two contacts (first contact 171, second contact 172) of the switching contact member 170, a common contact member 173, and terminals 175. Each of the two contacts (first contact 171, second contact 172) of the switching contact member 170 and the common contact member 173 is electrically connected to one of the multiple terminals 175. When the movable unit 160 is housed in the space 110A of the case 110, the multiple terminals 175 are arranged to be exposed from the bottom surface of the case 110.

[0038] The movable contact member 165 is positioned between the switching contact member 170 and the common contact member 173, and is provided to electrically connect the switching contact member 170 and the common contact member 173. The two contacts of the switching contact member 170 (first contact 171 and second contact 172) are spaced apart from each other in the Z-axis direction, and the movable contact member moves (for example, slides) in the Z-axis direction (first direction) between the two contacts (first contact 171 and second contact 172), thereby switching the electrical connection between the common contact member 173 and either of the two contacts (first contact 171 and second contact 172).

[0039] For example, when the movable contact member 165 is in contact with the first contact 171, it is a first connection state in which the first contact 171 and the common contact member 173 are electrically connected via the movable contact member 165. On the other hand, when the movable contact member 165 is in contact with the second contact 172, it is a second connection state in which the second contact 172 and the common contact member 173 are electrically connected via the movable contact member 165. This switching of connection states is performed by the up and down movement of the slider 130 when it is pressed.

[0040] The movable contact member 165, which switches the connection state, is held by a retaining member 166 made of an insulating material. The retaining member 166 is pivotably supported relative to the case 110, and this pivoting motion switches the connection position of the movable contact member 165 with respect to the switching contact member 170.

[0041] The movable contact member 165 has a main body portion 165C extending along the X-axis direction (second direction), a pair of contact pieces 165A, and a common contact portion 165B. The pair of contact pieces 165A are provided on one end side of the main body portion 165C (X1 side in the X1-X2 direction), extend along the X-axis direction, and are arranged side by side in the Y-axis direction (third direction) so as to be able to clamp the switching contact member 170. The common contact portion 165B is the portion that contacts the common contact member 173 and is provided on a different part of the main body portion 165C from the portion where the pair of contact pieces 165A are provided (for example, on the other end side of the main body portion 165C (X2 side in the X1-X2 direction)). The common contact portion 165B may have a pair of clamping pieces 165Ba. The pair of clamping pieces 165Ba of the common contact portion 165B are arranged side by side in the Y-axis direction so as to be able to clamp the common contact member 173.

[0042] The movable contact member 165 is formed, for example, by press-forming a springy metallic material. The movable contact member 165 is a separate component from the retaining member 166, which is made of an insulating material, and is assembled to the retaining member 166. Multiple movable contact members 165 may be attached to a single retaining member 166.

[0043] In this embodiment, two movable contact members 165 are arranged side by side in the Y-axis direction on the holding member 166. In addition, two switching contact members 170, two common contact members 173, and two terminals 175 are provided corresponding to each movable contact member 165. By providing two movable contact members 165 etc. on one holding member 166, the redundancy of the switch operation is increased. Note that the number of movable contact members 165 etc. provided on one holding member 166 is not limited to two; it may be one or three or more.

[0044] (Holding member and movable contact member) Figure 7 is an exploded perspective view of the retaining member and the movable contact member. Figure 8 illustrates the attachment of the movable contact member to the holding member. Figure 9 is a cross-sectional view showing the state in which the movable setting member is held by the holding member. For the sake of explanation, Figures 7 to 9 show the relationship between the holding member 166 and one movable contact member 165.

[0045] The retaining member 166 has a housing portion 166D capable of accommodating the housing portion 165D of the main body portion 165C of the movable contact member 165. In this embodiment, for example, a convex housing portion 165D protruding in the second direction (X1-X2 direction X2) is provided at the end of the main body portion 165C on the common contact portion 165B side, and the retaining member 166 is provided with a concave housing portion 166D capable of accommodating this housing portion 165D. The housing portion 165D of the main body portion 165C is provided to snap fit into the housing portion 166D of the retaining member 166. As shown in Figures 7 to 9, the housing portion 166D is recessed toward the Z1-Z2 direction Z1 side than the surrounding area (specifically, the part toward the X2 side in the X1-X2 direction). Therefore, when the movable contact member 165 moves towards X1 in the X1-X2 direction, the receiving portion 165D moves so as to enter this recess, that is, in the direction Z1 in the Z1-Z2 direction, and is housed in the receiving portion 166D. As a result, the holding member 166 restricts the displacement of the main body portion 165C in the X direction while allowing a predetermined displacement in the Y direction. Specifically, when the main body portion 165C is displaced towards X2 in the X1-X2 direction, the receiving portion 165D comes into contact with the step on the X2 side in the X1-X2 direction created by the receiving portion 166D, thus restricting further displacement of the main body portion 165C towards X2 in the X1-X2 direction.

[0046] The retaining member 166 further includes a slit portion 166E that restricts the displacement of the main body portion 165C in the direction of movement of the receiving portion 165D when the receiving portion 165D is housed in the receiving portion 166D. An insertion portion 165E is provided in the portion of the main body portion 165C that is different from the receiving portion 165D, and this insertion portion 165E is inserted into the slit portion 166E.

[0047] The gap in the Z-axis direction of the slit portion 166E is provided to be approximately the same as the thickness of the insertion portion 165E. As a result, as shown in Figure 8, when the insertion portion 165E moves toward the X1 side in the X1-X2 direction and is inserted into the slit portion 166E, the displacement of the main body portion 165C connected to the insertion portion 165E in the Z-axis direction is restricted. Furthermore, since the X1 side in the X1-X2 direction of the slit portion 166E is closed, any further displacement of the main body portion 165C toward the X1 side in the X1-X2 direction is restricted by the insertion portion 165E contacting the slit portion 166E. Moreover, when the receiving portion 165D connected to the main body portion 165C snaps into place with the insertion portion 165E inserted into the slit portion 166E, the displacement of the main body portion 165C toward the X2 side in the X1-X2 direction is restricted, as described above. In this way, the displacement of the main body 165C in the Z-axis direction and the X-axis direction is restricted relative to the holding member 166.

[0048] To snap-fit ​​the movable contact member 165 onto the retaining member 166, as shown in Figures 7 and 8, the main body portion 165C of the movable contact member 165 is placed on the mounting surface 166A of the retaining member 166 with the retaining member 166 inverted, and the main body portion 165C is slid forward (in the X1-X2 direction, X1 direction) (see arrow in Figure 8). This inserts the insertion portion 165E provided on the main body portion 165C into the slit portion 166E.

[0049] Then, with the insertion portion 165E inserted into the slit portion 166E, the receiving portion 165D of the main body portion 165C is pushed into the receiving portion 166D of the retaining member 166. Since the movable contact member 165 is made of a springy metallic material, the main body portion 165C preferentially undergoes elastic deformation, causing the receiving portion 165D to be fitted into the receiving portion 166D. As a result, the movable contact member 165 snaps into place on the retaining member 166.

[0050] In this embodiment, in this snap-fit, the direction in which the main body portion 165C is moved relative to the holding member 166 for snap-fitting (X-axis direction) and the direction in which the received portion 165D is moved when it is received in the receiving portion 166D by snap-fitting (Z-axis direction) are orthogonal. Therefore, the Y-axis direction is not involved in the series of movements for snap-fitting, and even after snap-fitting, the main body portion 165C may be displaced in the Y-axis direction relative to the holding member 166.

[0051] Here, the movable contact member 165 elastically contacts the switching contact member 170 and the common contact member 173 by clamping them in the Y-axis direction. Specifically, the pair of contact pieces 165A of the movable contact member 165 elastically contacts the contacts (first contact 171, second contact 172) of the switching contact member 170 by clamping them, and the pair of clamping pieces 165Ba of the movable contact member 165 elastically contacts the common contact member 173 by clamping it. Therefore, if a misalignment occurs in the relative position of the movable contact member 165 and the switching contact member 170 and the common contact member 173 in the Y-axis direction, the balance of stress on the pair of pieces (the pair of contact pieces 165A, the pair of clamping pieces 165Ba) in the elastic contact of the movable contact member 165 will be disrupted.

[0052] As in this embodiment, the holding member 166 is configured to hold the movable contact member 165 while allowing displacement of the main body portion 165C of the movable contact member 165 in the Y-axis direction. As a result, even if a misalignment occurs in the relative position of the movable contact member 165, the switching contact member 170, and the common contact member 173 in the Y-axis direction, the movable contact member 165 can move in the Y-axis direction to align with the positions of the switching contact member 170 and the common contact member 173 in a self-aligning manner, thereby suppressing an imbalance in the stress balance of the pair.

[0053] Furthermore, even if the movable contact member 165 and the holding member 166 are made of separate parts rather than being integrally molded by insert molding, they can be easily manufactured because they are assembled by snap-fit.

[0054] In this snap-fit ​​configuration, a biasing structure 190 may be provided to bias the receiving portion 165D and the receiving portion 166D so that they elastically contact each other when the receiving portion 165D is snap-fitted to the receiving portion 166D. In this embodiment, as a specific example, the biasing structure 190 includes a protrusion 166F provided on the holding member 166 and an engaging piece 165F provided on the main body portion 165C to which the receiving portion 165D is connected. The protrusion 166F has an inclined surface 166Fa, and as the receiving portion 165D moves when it snap-fits to the receiving portion 165D, the engaging piece 165F slides along the inclined surface 166Fa, thereby increasing the degree of elastic deformation of the engaging piece 165F.

[0055] Specifically, when the insertion portion 165E is inserted into the slit portion 166E and the main body portion 165C is slid in the X-axis direction (X1-X2 direction, towards X1), the engaging piece 165F extending from the main body portion 165C in the Y-axis direction slips under the protrusion 166F (below the holding member 166 when it is inverted upside down), and as the main body portion 165C is slid forward (towards X1 in the X1-X2 direction), the engaging piece 165F slides along the inclined surface 166Fa, gradually pushing down the engaging piece 165F. This increases the degree of elastic deformation of the engaging piece 165F, and consequently the receiving portion 165D of the main body portion 165C is biased in the Z-axis direction (Z1-Z2 direction, towards Z1). Eventually, the receiving portion 165D snaps into the housing portion 166D, and the elastic contact between the receiving portion 165D and the housing portion 166D is maintained.

[0056] When the receiving portion 165D and the receiving portion 166D are in elastic contact in this manner, a force exceeding the frictional force due to the elastic contact is required for the receiving portion 165D to be displaced within the receiving portion 166D. As a result, even when subjected to some vibration, the main body portion 165C does not displace relative to the holding member 166, and contact instability due to vibration is avoided.

[0057] Furthermore, the receiving portion 165D and the receiving portion 166D should be elastically in contact along the Z-axis direction. By having the biasing direction of the biasing structure 190 align with the Z-axis direction, the effect of sliding resistance during switching operation (the movable contact member 165 receiving a force in the direction that separates it from the holding member 166, causing the movable contact member 165 to become unstable) is suppressed.

[0058] Furthermore, the retaining member 166 may be configured to include a restricting portion 200 that restricts the range of displacement of the movable contact member 165 in the Y-axis direction relative to the retaining member 166. The restricting portion 200 may be configured to have an intervening portion 210 located in the gap between the pair of contact pieces 165A in the Y-axis direction. For example, the intervening portion 210 is the side surface 166B (a surface perpendicular to the mounting surface 166A) provided on both sides of the mounting surface 166A of the main body portion 165C in the Y-axis direction. Between the pair of contact pieces 165A of the movable contact member 165 and the main body portion 165C, there are bent portions 165Aa that are bent from both sides of the main body portion 165C in the Y-axis direction toward the Z-axis direction (Z1-Z2 direction Z1 direction).

[0059] When the movable contact member 165 is snap-fitted onto the retaining member 166, the bent portion 165Aa is positioned to cover the outside of the side surface 166B of the retaining member 166. A gap is provided in the Y-axis direction between the bent portion 165Aa and the side surface 166B. This bent portion 165Aa and the side surface 166B constitute a restricting portion 200, and the Y-axis movement of the movable contact member 165 relative to the retaining member 166 is restricted by the amount of the gap in the Y-axis direction between the bent portion 165Aa and the side surface 166B. As another example of the specific structure of the restricting portion 200, a recess is provided on one of the main body portion 165C and the retaining member 166, and a protrusion provided on the other is loosely fitted into the recess.

[0060] (Snap-fit ​​type) Figures 10A to 14B are schematic diagrams illustrating the snap-fit ​​configuration. In the snap-fit ​​configuration shown in Figure 10A, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the X-axis direction (X1-X2 direction, X1 direction) as indicated by arrow A, the insertion portion 165E is inserted into the slit portion 166E, and the receiving portion 165D is housed in the housing portion 166D to snap-fit. In the snap-fit, the receiving portion 165D is housed in the housing portion 166D by moving in the Z-axis direction (Z1-Z2 direction, Z1 direction) as indicated by arrow B. That is, when the movable contact member 165 moves in the X1-X2 direction, X1 direction, as indicated by arrow A, the portion of the holding member 166 that protrudes towards the X1-X2 direction X2 side from the housing portion 166D comes into contact with the tip of the receiving portion 165D. This contact causes at least one of the following to occur: the protruding portion of the holding member 166 elastically deforms and tilts toward the Z1 side in the Z1-Z2 direction, and a part of the movable contact member 165 elastically deforms and the tip of the housed portion 165D moves toward the Z2 side in the Z1-Z2 direction. When the movable contact member 165 moves toward the X1 side in the X1-X2 direction in this state, the housed portion 165D moves into the housed portion 166D, and the above-mentioned elastic deformation recovers accordingly, suppressing the displacement of the housed portion 165D toward the X2 side in the X1-X2 direction.

[0061] Thus, in the snap-fit ​​configuration shown in Figure 10A, when the receiving portion 165D snaps into the receiving portion 166D, the direction of movement of the receiving portion 165D is in the Z-axis direction, and therefore the movement of the movable contact member 165 in the X-axis direction is restricted by the snap-fit. Also, when the insertion portion 165E is inserted into the slit portion 166E, the direction of movement of the insertion portion 165E is in the X-axis direction, and therefore, when the insertion portion 165E is inserted into the slit portion 166E, the movement of the movable contact member 165 in the Z-axis direction is restricted.

[0062] In the snap-fit ​​configuration shown in Figure 10B, in addition to the configuration shown in Figure 10A, a biasing structure 190 is provided that biases the receiving portion 165D and the receiving portion 166D to elastically contact each other. That is, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the X-axis direction (X1-X2 direction X1 direction) as shown by arrow A, the insertion portion 165E is inserted into the slit portion 166E, and the receiving portion 165D is housed in the receiving portion 166D to snap-fit.

[0063] In the snap-fit ​​state, the biasing structure 190 biases the receiving portion 165D in the X-axis direction (X1-X2 direction X2 direction) as indicated by arrow C, and the receiving portion 165D and the receiving portion 166D are in elastic contact. As a result, similar to the configuration shown in Figure 10A, the movement of the movable contact member 165 in the Z-axis and X-axis directions is restricted, and the elastic contact between the receiving portion 165D and the receiving portion 166D by the biasing structure 190 enhances the holding stability of the movable contact member 165 by the holding member 166.

[0064] In the snap-fit ​​configuration shown in Figure 11A, the retaining member 166 is provided with multiple housing sections 166D, and the movable contact member 165 is provided with multiple receiving sections 165D. As a result, each of the multiple receiving sections 165D snaps into the corresponding housing section 166D.

[0065] When snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the Z-axis direction (Z1-Z2 direction, Z1 direction) as indicated by arrow A, and each of the multiple receiving portions 165D is accommodated in the corresponding receiving portion 166D to achieve snap-fitting. During snap-fitting, the receiving portion 165D is accommodated in the receiving portion 166D by moving in the X-axis direction as indicated by arrow B. In the snap-fitted state, the movable contact member 165 is restricted in the X-axis direction by the multiple receiving portions 166D and is also restricted in the Z-axis direction.

[0066] In the snap-fit ​​configuration shown in Figure 11B, in addition to the configuration shown in Figure 11A, a biasing structure 190 is provided that biases the receiving portion 165D and the receiving portion 166D to elastically contact each other. That is, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the Z-axis direction (Z1-Z2 direction, Z1 direction) as shown by arrow A, so that each of the multiple receiving portions 165D is accommodated in the corresponding receiving portion 166D and snap-fitted.

[0067] In the snap-fit ​​state, the biasing structure 190 biases the receiving portion 165D in the Z-axis direction (Z1-Z2 direction, Z2 direction) as indicated by arrow C, and the receiving portion 165D and the receiving portion 166D are in elastic contact. As a result, similar to the configuration shown in Figure 11A, the movement of the movable contact member 165 in the Z-axis and X-axis directions is restricted, and the elastic contact between the receiving portion 165D and the receiving portion 166D by the biasing structure 190 enhances the holding stability of the movable contact member 165 by the holding member 166.

[0068] In the snap-fit ​​configuration shown in Figure 12A, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the Z-axis direction (Z1-Z2 direction, Z1 direction) as indicated by arrow A, the insertion portion 165E is inserted into the slit portion 166E, and the receiving portion 165D is housed in the housing portion 166D to complete the snap-fit. In the snap-fit, the receiving portion 165D is housed in the housing portion 166D by moving in the X-axis direction (X1-X2 direction, X2 direction) as indicated by arrow B.

[0069] When the receiving portion 165D snaps into the receiving portion 166D, the direction of movement of the receiving portion 165D is in the X-axis direction, so the movement of the movable contact member 165 in the Z-axis direction is restricted by the snap-fit. Also, when the insertion portion 165E is inserted into the slit portion 166E, the direction of movement of the insertion portion 165E is in the Z-axis direction, so when the insertion portion 165E is inserted into the slit portion 166E, the movement of the movable contact member 165 in the X-axis direction is restricted.

[0070] In the snap-fit ​​configuration shown in Figure 12B, in addition to the configuration shown in Figure 12A, a biasing structure 190 is provided that biases the receiving portion 165D and the receiving portion 166D to elastically contact each other. That is, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the Z-axis direction (Z1-Z2 direction, Z1 direction) as shown by arrow A, the insertion portion 165E is inserted into the slit portion 166E, and the receiving portion 165D is housed in the receiving portion 166D to snap-fit.

[0071] In the snap-fit ​​state, the biasing structure 190 biases the receiving portion 165D in the Z-axis direction (Z1-Z2 direction, Z2 direction) as indicated by arrow C, and the receiving portion 165D and the receiving portion 166D are in elastic contact. As a result, similar to the configuration shown in Figure 12A, the movement of the movable contact member 165 in the Z-axis and X-axis directions is restricted, and the elastic contact between the receiving portion 165D and the receiving portion 166D by the biasing structure 190 enhances the holding stability of the movable contact member 165 by the holding member 166.

[0072] In the snap-fit ​​configuration shown in Figures 13A and 13B (Figure 13B is a plan view of Figure 13A), the movable contact member 165 has two receiving portions 165D extending to both sides in the Y-axis direction from approximately the center, and the holding member 166 has two receiving portions 166D corresponding to these two receiving portions 165D from approximately the center. When snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the X-axis direction (X1-X2 direction, X1 direction) as indicated by arrow A, and the two receiving portions 165D are accommodated in the corresponding receiving portions 166D to snap-fit. In the snap-fit, the two receiving portions 165D are accommodated in the receiving portions 166D by moving in the Z-axis direction (Z1-Z2 direction, Z2 direction) as indicated by arrow B.

[0073] When the two receiving portions 165D snap into the receiving portion 166D, the direction of movement of the receiving portions 165D is in the Z-axis direction, so the movement of the movable contact member 165 in the X-axis direction is restricted by the snap-fit. Also, when the two receiving portions 165D snap into the receiving portion 166D, the direction of movement is in the X-axis direction, so the movement of the movable contact member 165 in the Z-axis direction is restricted when the snap-fit ​​is in place.

[0074] In the snap-fit ​​configuration shown in Figure 13C, in addition to the configurations shown in Figures 13A and 13B, a biasing structure 190 is provided that biases the receiving portion 165D and the receiving portion 166D to elastically contact each other. That is, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the X-axis direction (X1-X2 direction X1 direction) as shown by arrow A to accommodate the two receiving portions 165D in the corresponding receiving portions 166D and snap-fit ​​them together.

[0075] In the snap-fit ​​state, the biasing structure 190 biases the receiving portion 165D in the Z-axis direction (Z1-Z2 direction, Z2 direction) as indicated by arrow C, and the receiving portion 165D and the receiving portion 166D are in elastic contact. As a result, as in the configurations shown in Figures 13A and 13B, the movement of the movable contact member 165 in the Z-axis and X-axis directions is restricted, and the elastic contact between the receiving portion 165D and the receiving portion 166D by the biasing structure 190 enhances the holding stability of the movable contact member 165 by the holding member 166.

[0076] In the snap-fit ​​configuration shown in Figure 14A, the retaining member 166 is provided with two housing sections 166D, and the movable contact member 165 is provided with two receiving sections 165D corresponding to each of these housing sections 166D. One housing section 166D is provided on the upper surface on the front side of the retaining member 166, and the other housing section 166D is provided on the side surface on the rear end side of the retaining member 166. As a result, each of the two receiving sections 165D snaps into the corresponding housing section 166D.

[0077] When snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the direction indicated by arrow A (diagonally downward and forward) to accommodate each of the two receiving portions 165D into the corresponding receiving portion 166D and snap-fit. In the snap-fit, one receiving portion 165D is accommodated in the receiving portion 166D by moving in the X-axis direction (X1-X2 direction, X2 direction) indicated by arrow B1, and the other receiving portion 165D is accommodated in the receiving portion 166D by moving in the Z-axis direction (Z1-Z2 direction, Z2 direction) indicated by arrow B2. In the snap-fit ​​state, the movable contact member 165 is restricted in the Z-axis and X-axis directions by the two receiving portions 166D.

[0078] In the snap-fit ​​configuration shown in Figure 14B, in addition to the configuration shown in Figure 14A, a biasing structure 190 is provided that biases the receiving portion 165D and the receiving portion 166D to elastically contact each other. That is, when snap-fitting the movable contact member 165 to the holding member 166, the movable contact member 165 is moved in the direction indicated by arrow A (diagonally downward and forward) to accommodate each of the two receiving portions 165D in the corresponding receiving portion 166D and snap-fit ​​them together.

[0079] In the snap-fit ​​state, the biasing structure 190 biases one of the receiving portions 165D in the Z-axis direction (Z1-Z2 direction, Z2 direction) as indicated by arrow C1, and the other receiving portion 165D biases in the X-axis direction (X1-X2 direction, X2 direction) as indicated by arrow C2, so that the two receiving portions 165D and the two receiving portions 166D are elastically in contact with each other. As a result, similar to the configuration shown in Figure 14A, the movement of the movable contact member 165 in the Z-axis and X-axis directions is restricted, and the elastic contact between the receiving portion 165D and the receiving portion 166D by the biasing structure 190 enhances the holding stability of the movable contact member 165 by the holding member 166.

[0080] In any of the embodiments shown in Figures 10A to 14B, the movable contact member 165 is held by the retaining member 166 by a snap fit, and at least one of the displacements in the Z-axis direction or the X-axis direction can be restricted while allowing a predetermined displacement of the movable contact member 165 in the Y-axis direction.

[0081] (Operation of the switch device) Figures 15 to 26 are schematic diagrams illustrating the operation of the switch device.

[0082] <First state> Figure 15 shows the state in which the slider 130 is not pressed (first state). In this first state, the pressing surface 130A provided at the lower end of the slider 130 is in contact with the cam peak 162C provided at the tip of the cam 162. Also in this first state, the movable contact member 165 held by the second actuator 164 is in a horizontal position, with a pair of contact pieces 165A in contact with the first contact 171 and the common contact portion 165B in contact with the common contact member 173. In other words, the switch device 100 is in the first connected state.

[0083] <Second state> When the slider 130 is pressed from the first state shown in Figure 15, the pressing surface 130A of the slider 130 pushes the cam peak 162C of the cam 162 downward, as shown in Figure 16. As a result, the cam 162 begins to rotate downward around the pivot shaft 162B, which is pivotally supported by the pivot support 164A of the second actuator 164.

[0084] Then, as shown in Figure 16, when the slider 130 has slid slightly downward after it has started to slide downward, the pressing portions 130B (see Figure 4) on both sides of the slider 130 in the left-right direction (Y-axis direction) come into contact with the upper contact surfaces 161B on both sides of the first actuator 161 in the left-right direction (Y-axis direction). As a result, the slider 130 starts to push down the first actuator 161 in addition to pushing down the cam 162. The first actuator 161, pushed down by the pressing portions 130B of the slider 130, starts to rotate downward around the first shaft portion 112C (see Figure 4) as the pivot point.

[0085] <Third state> Furthermore, when the slider 130 slides slightly downward from the second state shown in Figure 16, the lower inclined surface 161C of the first actuator 161 comes into contact with the cam peak 162C of the cam 162, as shown in Figure 17. Thereafter, the cam peak 162C of the cam 162 separates from the pressing surface 130A of the slider 130 and is pushed down by the lower inclined surface 161C of the first actuator 161.

[0086] <Fourth state> Then, as shown in Figure 18, when the first actuator 161 rotates downward to a predetermined angle, the rotation of the first actuator 161 is restricted. At this time, the biasing force from the torsion spring 163 causes the cam peak 162C of the cam 162 to slide upward along the lower inclined surface 161C of the first actuator 161. This force exceeds the frictional resistance between the cam peak 162C and the lower inclined surface 161C, causing the cam peak 162C to instantly slide upward along the lower inclined surface 161C towards its top 161D, and to enter and stop at the top 161D. At this time, because the top 161D is a gently curved surface, the contact noise between the cam peak 162C and the top 161D is suppressed.

[0087] <The fifth state> As a result, as shown in Figure 19, the pivot shaft portion 162B of the cam 162 instantly pulls the pivot portion 164A of the second actuator 164 upward. At this time, the second actuator 164 rotates upward using the contact point between the common contact portion 165B of the movable contact member 165 held by the second actuator 164 and the common contact member 173 (i.e., the bent portion of the common contact member 173) as the pivot point. As a result, the contact position of the pair of contact pieces 165A of the movable contact member 165 held by the second actuator 164 instantly switches from the first contact 171 to the second contact 172. Consequently, the second contact 172 and the common contact member 173 become electrically connected to each other via the movable contact member 165, that is, the switch device 100 switches to the second connected state. This enables the switch device 100 to perform instantaneous switching operations by snap action.

[0088] <Sixth state> Furthermore, as shown in Figure 20, when the slider 130 is pushed down further by an overstroke after the switching operation, the first actuator 161 slides downward together with the slider 130, while pushing down the cam peak 162C of the cam 162, with its rotation angle fixed. At this time, the sliding of the first actuator 161 is guided by the guide rib 110C provided on the inner wall surface of the case 110 on the positive X-axis side. Also at this time, the first actuator 161 gradually moves downward away from the first shaft portion 112C of the lid 112, which was the center of rotation.

[0089] <Seventh state> Then, as shown in Figure 21, when the slider 130 is pushed down until its lower end 130E (see Figure 4) contacts the bottom 110B of the case 110, the downward sliding of the slider 130 and the first actuator 161 stops. In other words, Figure 21 shows the state in which the slider 130 is pushed down to its lowest point due to the overstroke of the slider 130.

[0090] Subsequently, when the pressing operation of the slider 130 is released, the slider 130 is pushed upward by the biasing force from the torsion spring 163, by the cam 162 and the first actuator 161, and returns to the initial position shown in Figure 15.

[0091] <The 8th state> Specifically, from the seventh state shown in Figure 21, as shown in Figure 22, the biasing force from the torsion spring 163 causes the cam peak 162C of the cam 162 to push the first actuator 161 upward. As a result, the first actuator 161 slides upward while pushing up the slider 130, with its rotation angle fixed. At this time, the sliding of the first actuator 161 is guided by the guide rib 110C provided on the inner wall surface of the case 110 on the positive X-axis side. Then, as shown in Figure 22, when the first actuator 161 comes into contact with the first shaft portion 112C of the lid 112, the upward sliding of the first actuator 161 stops.

[0092] <Ninth state> Subsequently, as shown in Figure 23, when the first actuator 161 is pushed up by the cam peak 162C of the cam 162, it rotates upward while being pivotally supported by the first shaft portion 112C of the lid 112, pushing up the slider 130. Figure 24 shows how the first actuator 161 is pivotally supported by the first shaft portion 112C of the lid 112. Then, due to the biasing force from the torsion spring 163, the force that causes the cam peak 162C of the cam 162 to slide up the lower inclined surface 161C of the first actuator 161 exceeds the frictional resistance between the cam peak 162C and the lower inclined surface 161C, causing the cam peak 162C to instantly slide up the lower inclined surface 161C toward the tip of the first actuator 161. Consequently, the upward movement of the pivot point 164A of the second actuator 164 by the pivot shaft portion 162B of the cam 162 is eliminated, and the second actuator 164 rotates instantaneously downward with the contact point between the common contact portion 165B of the movable contact member 165 and the common contact member 173 as the pivot point.

[0093] <The 10th state> Then, as shown in Figure 25, when the second actuator 164 rotates downward instantaneously, the contact position of the pair of contact pieces 165A of the movable contact member 165 held by the second actuator 164 instantly switches from the second contact 172 to the first contact 171. As a result, the first contact 171 and the common contact member 173 become electrically connected to each other via the movable contact member 165, that is, the switch device 100 instantly switches to the first connected state. Thus, because the switch device 100 has a snap action mechanism, it is possible to instantly switch between the first connected state and the second connected state. Furthermore, as shown in Figure 25, when the contact position of the cam peak 162C of the cam 162 switches from the lower inclined surface 161C of the first actuator 161 to the pressing surface 130A of the slider 130, the upward rotation of the first actuator 161 ends, and the cam peak 162C of the cam 162 biases the pressing surface 130A of the slider 130 upward, directly causing the slider 130 to slide upward.

[0094] <State 11> Then, as shown in Figure 26, when the slider 130 comes into contact with the lower surface of the lid 112, the upward sliding of the slider 130 stops. In other words, Figure 22 shows the slider 130 in its most pushed-up state (initial state).

[0095] Thus, according to this embodiment, it is possible to provide a switch device 100 that can easily and reliably perform relative alignment between the switching contact member 170 and the movable contact member 165.

[0096] Although the embodiments described above are examples, the present invention is not limited to these examples. For example, any additions, deletions, or design modifications of components to the aforementioned embodiments, or combinations of the features of the configuration examples of each embodiment, as appropriate by those skilled in the art, are also included within the scope of the present invention, as long as they retain the essence of the present invention. [Explanation of symbols]

[0097] 100…Switching device 110... Case 110A…Space 110B…Bottom 110C... Guide Rib 112…Lid 112A…Opening 112B…Axis branch 112C…1st shaft part 114... Nail area 130... Slider 130A...Pressure surface 130B...Pressing part 130E…Lower end 150... Holder 152... Hook 160... Movable Unit 161...First actuator 161A…Upper bearing surface 161B…Upper contact surface 161C…Lower slope 161D...Top 162... Cam 162B...Rotating shaft section 162C... Kamuyama Branch 163... Torsion spring 164...Second actuator 164A…Axis branch 165...Movable contact member 165A…Contact piece 165Aa...Folded part 165B... Common contact area 165Ba...Pinching piece 165C...Main body 165D…Accommodated part 165E... Insertion part 165F…Engagement piece 166…Retaining member 166A…Mounting surface 166B…Side 166D... Containment Unit 166E... Slit section 166F... protruding part 166Fa…Slope surface 170... Switching contact component 171...First contact point 172...Second contact point 173... Common contact component 175…Terminal 180... Base component 190...Biasing structure 200... Regulatory Department 210...intervening part

Claims

1. A switch device comprising: a switching contact member having at least two contacts; a common contact member; a movable contact member disposed between the switching contact member and the common contact member and capable of electrically connecting the switching contact member and the common contact member; and a holding member for holding the movable contact member, By moving the movable contact member relative to the switching contact member, it is possible to switch between a first connection state and a second connection state. In the first connection state, when the direction along the direction of movement of the movable contact member is defined as the first direction, the direction along the direction in which the movable contact member extends and perpendicular to the first direction is defined as the second direction, and the direction perpendicular to both the first and second directions is defined as the third direction, The movable contact member comprises a main body, a pair of contact pieces provided on the main body that extend along the second direction and are arranged in the third direction so as to be able to clamp the switching contact member, and a common contact portion provided on a part of the main body different from the part where the pair of contact pieces are provided and that contacts the common contact member. The holding member has a housing portion capable of housing the housing portion provided by the main body, The retaining member, by snapping the receiving portion into the receiving portion, allows a predetermined displacement of the main body portion in the third direction while restricting at least one of the displacements in the first direction or the second direction. A switch device characterized by the following.

2. The holding member further includes a slit portion that restricts the displacement of the main body portion in the direction of movement of the portion to be housed when the portion to be housed is housed in the housing portion, The switch device according to claim 1, wherein, with the insertion portion, which is a part of the main body different from the housing portion, inserted into the slit portion, the housing portion snaps into the housing portion, thereby restricting the displacement of the main body relative to the holding member in the first direction and the second direction.

3. The switch device according to claim 1, wherein the direction of movement of the receiving portion when the receiving portion snaps into the receiving portion is along the first direction.

4. The switch device according to claim 1, wherein the direction of movement of the housing portion when the housing portion snaps into the housing portion is along the second direction.

5. The switch device according to claim 1, further comprising a biasing structure that biases the receiving portion and the receiving portion to be elastically contacted when the receiving portion is snap-fitted to the receiving portion.

6. The switch device according to claim 5, wherein the housing portion and the housing portion are elastically in contact along the first direction.

7. The switch device according to claim 1, wherein the retaining member has a plurality of housing portions, the main body has a plurality of receiving portions corresponding to each of the plurality of housing portions, and each of the plurality of receiving portions snap-fits to the corresponding housing portion, thereby restricting the displacement of the main body with respect to the retaining member in the first direction and the second direction.

8. The switch device according to claim 1, wherein the retaining member includes a restricting portion that restricts the range of displacement of the movable contact member in the third direction relative to the retaining member.

9. The switch device according to claim 8, wherein the restricting portion consists of an intervening portion located in the gap between the pair of contact pieces in the third direction.

10. The aforementioned biasing structure is The protrusion provided on the retaining member, The main body is provided with an engaging piece connected to the receiving portion, The switch device according to claim 5, wherein the movement of the receiving portion when the receiving portion snaps into the receiving portion causes the protrusion and the engaging piece to engage, and elastic deformation of the engaging piece occurs due to the protrusion, and the receiving portion connected to the engaging piece is biased in the first direction by this elastic deformation.

11. The aforementioned protrusion has an inclined surface, The switch device according to claim 10, wherein the degree of elastic deformation of the engaging piece increases as the receiving portion moves when the receiving portion snaps into the receiving portion, the engaging piece slides along the inclined surface.

12. The switch device according to claim 1, wherein the main body preferentially undergoes elastic deformation when the housing portion snaps into the housing portion.

13. The switch device according to claim 12, wherein the movable contact member is made of a springy metallic material.

14. The switch device according to claim 9, wherein the holding member holds a plurality of the movable contact members arranged in the third direction.

15. The switching contact member has a first contact and a second contact that are independent of each other. The first connection state is a first conductive state in which the first contact and the movable contact member are electrically connected. The switch device according to claim 1, wherein the second connection state is a second conductive state in which the second contact and the movable contact member are electrically connected.

16. The switch device according to claim 15, comprising a snap action mechanism.

17. The first connection state is a conductive state in which the switching contact member and the common contact member are electrically connected via the movable contact member. The switch device according to claim 1, wherein the second connection state is a non-conductive state in which the switching contact member and the common contact member are not electrically connected.

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