Switch device, wiring accessory system, and outer handle

Abstract

The purpose of the present disclosure is to provide a switch device, a wiring accessory system, and an outer handle capable of improving usability.　A switch (1) according to the present disclosure comprises an inversion handle (4), a first middle handle (7A), and a second middle handle (7B). A first protrusion (65) and a second protrusion (66) of an outer handle (6) have mutually different shapes as seen from a second direction, which is orthogonal to a first direction (DR1). In the first protruding part (65), a first contact surface capable of contacting a first contact part (71) of the first middle handle (7A) is inclined with respect to a third direction (DR3). In the second protruding part (66), a second contact surface capable of contacting a second contact part (72) of the second middle handle (7B) is inclined with respect to the third direction (DR3).

Description

Switch device, wiring fixture system, and outer handle

[0001] The present disclosure relates to a switch device, a wiring fixture system, and an outer handle. More specifically, the present disclosure relates to a switch device, a wiring fixture system, and an outer handle in which a contact portion is opened or closed by operating an outer handle.

[0002] In recent years, the market has demanded switches with larger handles as highly designed switches. On the other hand, when the handle of a switch is enlarged, the protrusion amount of the handle from the wall increases, which deteriorates designability.

[0003] Patent Document 1 discloses a seesaw-type switch module. The switch module includes a swing rod, a first transmission link, a second transmission link, and a main body. The first transmission link and the second transmission link are rotatably supported by the main body. The first transmission link and the second transmission link are disposed on both sides of the swing rod. A panel is rotatably disposed relative to the main body, and the first transmission link and the second transmission link rotate in accordance with the rotation of the panel. When the swing rod rotates in accordance with the rotation of the first transmission link and the second transmission link, the contact portion is opened or closed. Here, the rotation angle of the first transmission link and the second transmission link is smaller than the swing angle of the swing rod, and the rotation angle of the panel is smaller than the rotation angle of the first transmission link and the second transmission link.

[0004] In the switch module of Patent Document 1, the rotation direction is opposite between the inclination angle at which the panel inclines relative to the main body when the contact portion is open and the inclination angle at which the panel inclines relative to the main body when the contact portion is closed, but the magnitude of the inclination angle is the same.

[0005] Description of Chinese Utility Model No. 214068620

[0006] An object of the present disclosure is to provide a switch device, a wiring fixture system, and an outer handle that can improve usability.

[0007] A switch device according to one aspect of the present disclosure comprises a switch and an outer handle. The switch has a body housing a fixed contact and a movable contact. The outer handle is positioned to overlap the switch in a first direction and is rotatable about a first axis of rotation parallel to a second direction perpendicular to the first direction. The switch comprises a reversing handle, a first middle handle, and a second middle handle. The reversing handle has a swinging part, a first arm part, and a second arm part. The swinging part is held in the body in a state in which it is rotatable about a second axis of rotation parallel to the second direction. The first arm part and the second arm part protrude from the swinging part in opposite directions along a third direction perpendicular to the first and second directions, respectively. The first middle handle is held in the body in a state in which it is rotatable about a third axis of rotation parallel to the second direction. The first middle handle is capable of contacting the first arm portion on the side opposite to the third rotation axis in the third direction, and a first contact portion is provided on the side opposite to the reversing handle in the first direction. The second middle handle is held in the body in a state in which it can rotate about a fourth rotation axis parallel to the second direction. The second middle handle is capable of contacting the second arm portion on the side opposite to the fourth rotation axis in the third direction, and a second contact portion is provided on the side opposite to the reversing handle in the first direction. The outer handle has a first projection and a second projection. The first projection protrudes toward the first middle handle from the opposing surface facing the switch in the first direction, and is capable of contacting the first contact portion of the first middle handle. The second projection protrudes toward the second middle handle from the opposing surface, and is capable of contacting the second contact portion of the second middle handle. When viewed along the second direction, the shapes of the first projection and the second projection are different from each other. The first contact surface of the first projection that can contact the first contact portion is inclined with respect to the third direction, and the second contact surface of the second projection that can contact the second contact portion is inclined with respect to the third direction.

[0008] A wiring device system according to one aspect of the present disclosure comprises a switch device and a mounting frame that can hold the body of the switch device and be attached to an object to be mounted.

[0009] An external handle in one embodiment of the present disclosure is provided on the switch device. The external handle has a handle body that is rotatably positioned relative to the device body. The handle body has a first projection and a second projection on the opposing surface facing the switch in the first direction.

[0010] Figure 1 is a cross-sectional view of a wiring device system equipped with a switch device according to one embodiment of the present disclosure in a first switching state. Figure 2 is a cross-sectional view of the same wiring device system in a second switching state. Figure 3 is an exploded perspective view of the switch constituting the switch device, viewed from the lower right. Figure 4 is a perspective view of the same wiring device system. Figure 5 is an explanatory diagram showing the installation state of the same wiring device system. Figure 6 is a perspective view of the same wiring device system with the outer handle removed from the switch. Figure 7 is a perspective view of the same wiring device system with the outer handle and mounting frame removed from the switch. Figure 8 is a perspective view of the same wiring device system, viewed from the rear with the outer handle and mounting frame removed from the switch. Figure 9 is a side view of the same wiring device system with the outer handle and mounting frame removed from the switch. Figure 10 is a side view of the same wiring device system with the mounting frame removed. Figure 11 is a partially broken side view of the same switch viewed from above. Figure 12 is a cross-sectional view of the same outer handle. Figure 13 is a cross-sectional view of a wiring device system equipped with a switch device according to Modification 1 in the off state. Figure 14 is a cross-sectional view of a wiring device system equipped with a switch device according to Modification Example 1, in the ON state.

[0011] Hereinafter, a switch device, a wiring device system equipped with the switch device, and an external handle provided with the switch device according to the embodiments will be described in detail with reference to the drawings. However, the figures described in the following embodiments are schematic diagrams, and the dimensional ratios of the size of each component do not necessarily reflect the actual dimensional ratios. Furthermore, the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0012] (Embodiments) (1) Overview Below, a switch device and a wiring device system equipped with a switch device according to the embodiments will be described in detail with reference to Figures 1 to 12. However, the figures described in the following embodiments are schematic diagrams, and the dimensional ratios of the size of each component do not necessarily reflect the actual dimensional ratios. Furthermore, the configurations described in the following embodiments are merely examples of the present disclosure. The present disclosure is not limited to the following embodiments, and various modifications are possible depending on the design, etc., as long as the effects of the present disclosure can be achieved.

[0013] As shown in Figures 1, 2, and 4 to 8, the switch device 100 of this embodiment comprises a switch 1 and an external handle 6.

[0014] The switch 1 has a body 2 that houses a fixed contact 10 and a movable contact 11.

[0015] The outer handle 6 is positioned to overlap with the switch 1 in the first direction DR1, and is rotatable about a first rotation axis AX1 which is parallel to the second direction DR2, which is perpendicular to the first direction DR1.

[0016] As shown in Figures 1 to 3, switch 1 includes a reversing handle 4, a first middle handle 7A, and a second middle handle 7B.

[0017] The reversing handle 4 has a swinging part 40, a first arm part 41, and a second arm part 42. The swinging part 40 is held in the body 2 in a state that it can rotate about a second rotation axis AX2 which is parallel to the second direction DR2 (see Figure 11). The first arm part 41 and the second arm part 42 protrude from the swinging part 40 in opposite directions along a third direction DR3 which is perpendicular to the first direction DR1 and the second direction DR2, respectively.

[0018] The first central handle 7A is held in the body 2 in a state that it can rotate about a third rotation axis AX3 which is parallel to the second direction DR2. The first central handle 7A can contact the first arm portion 41 on the side opposite to the third rotation axis AX3 in the third direction DR3, and the first contact portion 71 is provided on the side opposite to the reversing handle 4 in the first direction DR1.

[0019] The second central handle 7B is held in the body 2 in a state that it can rotate about the fourth rotation axis AX4 which is parallel to the second direction DR2. The second central handle 7B can contact the second arm portion 42 on the side opposite to the fourth rotation axis AX4 in the third direction DR3, and the second contact portion 72 is provided on the side opposite to the reversing handle 4 in the first direction DR1.

[0020] The outer handle 6 has a first projection 65 and a second projection 66. The first projection 65 protrudes from the opposing surface S1 facing the switch 1 in the first direction DR1 toward the first middle handle 7A and is capable of contacting the first contact portion 71 of the first middle handle 7A. The second projection 66 protrudes from the opposing surface S1 toward the second middle handle 7B and is capable of contacting the second contact portion 72 of the second middle handle 7B. When viewed along the second direction DR2, the shapes of the first projection 65 and the second projection 66 are different from each other. The first contact surface 651 of the first projection 65 that is capable of contacting the first contact portion 71 is inclined with respect to the third direction DR3, and the second contact surface 661 of the second projection 66 that is capable of contacting the second contact portion 72 is inclined with respect to the third direction DR3.

[0021] Furthermore, the wiring device system A1 of this embodiment includes a switch device 100 and a mounting frame 8 that can hold the body 2 of the switch 1 and be attached to the object 300 (see Figure 5).

[0022] Furthermore, the external handle 6 of this embodiment is provided on the switch device 100 described above. The external handle 6 has a handle body 60 that is rotatably positioned relative to the device body 2. The handle body 60 has a first projection 65 and a second projection 66 on the opposing surface S1 that faces the switch 1 in the first direction DR1.

[0023] In this embodiment, the object 300 to which the switch body 2 of the switch 1 is attached via the mounting frame 8 is, for example, an interior or exterior wall of a building. The planar shape of the mounting frame 8 is rectangular, having a short side and a long side, as shown in Figure 6. In this embodiment, for the sake of explanation, we will describe the case in which the mounting frame 8 is attached to the surface of the object 300 in a orientation in which the short side of the mounting frame 8 is parallel to the horizontal direction (Y-axis direction) and the long side of the mounting frame 8 is parallel to the vertical direction (Z-axis direction). More specifically, we will describe the case in which the switch device 100 is installed on the object 300 in an orientation in which the second direction DR2 is parallel to the Z-axis direction (longitudinal direction of the mounting frame 8) and the third direction DR3 is parallel to the Y-axis direction (short side of the mounting frame 8). In this case, the first direction DR1 is parallel to the X-axis direction, which is perpendicular to the Y-axis direction and the Z-axis direction, respectively. Furthermore, the third direction DR3 is parallel to the surface of the mounting object 300. When the outer handle 6 is rotated so that its front surface is parallel to the surface of the mounting object 300, the third direction DR3 is parallel to the front surface of the outer handle 6 and to the surface S1 of the outer handle 6 facing the switch 1. In the following explanation, the X-axis direction is defined as the front-to-back direction (depth direction), the Y-axis direction as the left-to-right direction, and the Z-axis direction as the up-and-down direction. The positive direction in the X-axis direction is defined as the front, the positive direction in the Y-axis direction as the right side, and the positive direction in the Z-axis direction as the up side. However, these directions are merely examples and are not intended to limit the direction in which the switch 1 and switch device 100 are used. The arrows indicating each direction in the drawings are for illustrative purposes only and do not represent actual objects.

[0024] Furthermore, in this embodiment, the statement that two directions are "orthogonal" is not limited to a state where the intersection angle of the two directions is 90 degrees, but the angle between the two directions may deviate from 90 degrees by an amount corresponding to manufacturing tolerances. The statement that two directions are "orthogonal" may include, for example, a state where the angle between the two directions is 80 degrees or more and 100 degrees or less. Also, the statement that two directions are "parallel" is not limited to a state where two directions on the same plane do not intersect each other. The statement that two directions are "parallel" may include a state where two directions on the same plane intersect at an angle of ±10 degrees or less. Furthermore, the statement that the first contact surface 651 of the first projection 65 is inclined with respect to the third direction DR3 means that, in the plane (XY plane) that is orthogonal to the first direction DR1 and the third direction DR3 respectively, the direction parallel to the tangential direction of the first contact surface 651 is inclined with respect to the third direction DR3. Furthermore, when we say that the second contact surface 661 of the second projection 66 is inclined with respect to the third direction DR3, we mean that in a plane (XY plane) perpendicular to the first direction DR1 and the third direction DR3, the direction parallel to the tangential direction of the second contact surface 661 is inclined with respect to the third direction DR3.

[0025] In the switch device 100 of this embodiment, the outer handle 6 is positioned outside the device body 2 so as to be rotatable with respect to the device body 2 around a first rotation axis AX1 (see Figures 7, 9, and 10) which is parallel to the second direction DR2.

[0026] When the outer handle 6 is pushed along the first direction DR1 with respect to the first rotation axis AX1, the portion on the side of the first projection 65 (the right side in Figure 1) pushes the first contact portion 71 of the first middle handle 7A, causing the first middle handle 7A to rotate around the third rotation axis AX3 (see Figure 1). As the first middle handle 7A rotates, it pushes the first arm portion 41, causing the reversing handle 4 to rotate around the second rotation axis AX2 in the first rotation direction (for example, clockwise in Figure 1), thereby closing or opening the movable contact 11 and the fixed contact 10. The position of the outer handle 6 at this time (the position of the outer handle 6 in Figure 1) is called the first rotation position, and the state of the reversing handle 4, the first middle handle 7A, and the second middle handle 7B when the outer handle 6 is rotated to the first rotation position is called the first state.

[0027] Furthermore, when the outer handle 6 is pushed along the first direction DR1 with respect to the first rotation axis AX1, the portion on the side of the second projection 66 (the left end in Figure 2) pushes the second contact portion 72 of the second middle handle 7B, causing the second middle handle 7B to rotate around the fourth rotation axis AX4 (see Figure 2). As the second middle handle 7B rotates, it pushes the second arm portion 42, causing the reversing handle 4 to rotate around the second rotation axis AX2 in the second rotation direction (for example, counterclockwise in Figure 2), thereby opening or closing the movable contact 11 and the fixed contact 10. The position of the outer handle 6 at this time (the position of the outer handle 6 in Figure 2) is called the second rotation position, and the state of the reversing handle 4, the first middle handle 7A, and the second middle handle 7B when the outer handle 6 is rotated to the second rotation position is called the second state.

[0028] In order to stabilize the opening and closing operation of the fixed contact 10 and the movable contact 11, it is preferable that the angle of inclination of the reversing handle 4 with respect to the third direction DR3 in the first state and the angle of inclination of the reversing handle 4 with respect to the third direction DR3 in the second state are opposite in direction but equal in angle.

[0029] Here, we assume a switch device in which the shape of the first projection 65 and the shape of the second projection 66 of the outer handle 6 are the same when viewed along the second direction DR2. In such a switch device, the angle of inclination of the outer handle 6 with respect to the third direction DR3 when the outer handle 6 is in the first rotation position and the angle of inclination of the outer handle 6 with respect to the third direction DR3 when the outer handle 6 is in the second rotation position are opposite to each other and are equal angles. Note that the angle of inclination of the outer handle 6 with respect to the third direction DR3 refers to the angle of inclination of the line segment LN1 (see Figure 5) connecting the two opposing ends of the outer handle 6 in the third direction DR3 with respect to the third direction DR3.

[0030] In contrast, in the switch device 100 of this embodiment, the shapes of the first projection 65 and the second projection 66 of the outer handle 6 are different when viewed along the second direction DR2. As a result, in this embodiment, the inclination angle at which the outer handle 6 is tilted with respect to the third direction DR3 when the outer handle 6 is in the first rotation position, and the inclination angle at which the outer handle 6 is tilted with respect to the third direction DR3 when the outer handle 6 is in the second rotation position, can be set to desired angles, thereby improving the usability of the switch device 100.

[0031] In this embodiment, the shapes of the first projection 65 and the second projection 66 are designed to be predetermined, so that the orientation of the surface of the outer handle 6 at the first rotation position (parallel to the line segment LN1) is parallel to the third direction DR3 (see Figures 1 and 5). As a result, the outer handle 6 rotates between a first rotation position where the orientation of the surface of the outer handle 6 is parallel to the third direction DR3, and a second rotation position where the orientation of the surface of the outer handle 6 is inclined diagonally with respect to the third direction DR3. At the first rotation position, the orientation of the surface of the outer handle 6 is parallel to the third direction DR3, making it easier for the user to determine whether the outer handle 6 is at the first or second rotation position, thereby improving the usability of the switch device 100.

[0032] (2) Details The details of the switch device 100 and the wiring device system A1 equipped with the switch device 100 according to the embodiment will be described in detail below with reference to Figures 1 to 11.

[0033] (2.1) Switch Configuration The switch 1 according to this embodiment will be described with reference to Figures 1 to 11. As described above, the switch 1 comprises a body 2, a fixed contact 10, a reversing handle 4, a first middle handle 7A, and a second middle handle 7B. The switch 1 according to this embodiment has two fixed contacts 10. When describing the two fixed contacts 10 separately, they will be referred to as the first fixed contact 10a and the second fixed contact 10b. In the switch device 100 according to this embodiment, when the outer handle 6 is in the first rotation position, the movable contact 11 contacts the first fixed contact 10a, and when the outer handle 6 is in the second rotation position, the movable contact 11 contacts the second fixed contact 10b. In other words, the switch 1 of this embodiment has c-contact type contacts. The switch 1 according to this embodiment further comprises a coil spring 49 and a movable contact plate 33 on which the movable contact 11 is provided. Furthermore, the switch 1 according to this embodiment further comprises a first terminal member 9A, a second terminal member 9B, and a third terminal member 9C.

[0034] (2.1.1) Body Body 2 houses, as described above, two fixed contacts 10 (including the first fixed contact 10a and the second fixed contact 10b), a movable contact 11, a reversing handle 4, a first middle handle 7A, and a second middle handle 7B. Body 2 also houses a movable contact plate 33, a coil spring 49, a first terminal member 9A, a second terminal member 9B, and a third terminal member 9C.

[0035] The device body 2 has a box-shaped body 21 with an opening on the front and a cover 22. Both the body 21 and the cover 22 are made of synthetic resin. The device body 2 is assembled by attaching the cover 22 to the front side of the body 21 so as to cover the opening on the front of the body 21.

[0036] The body 21 has a plurality (for example, four) of assembly protrusions 21a. The plurality of assembly protrusions 21a are provided on the outer surfaces of two opposing side walls of the body 21 in the short direction, spaced apart in the longitudinal direction of the body 21.

[0037] The cover 22 has a plurality (for example, four) of assembly pieces 22a that protrude rearward from the rear end of the cover 22.

[0038] The assembly holes 22b provided in each of the four assembly pieces 22a and the assembly projections 21a of the body 21 are fitted together, thereby joining the body 21 and the cover 22 to each other.

[0039] The body 21 has a first storage compartment 23a in the center in the left-right direction. The body 21 also has a second storage compartment 23b to the right of the first storage compartment 23a, and a third storage compartment 23c to the left of the first storage compartment 23a.

[0040] The first housing chamber 23a houses a part of the first terminal member 9A, a part of the second terminal member 9B on which the first fixed contact 10a is provided, a part of the third terminal member 9C on which the second fixed contact 10b is provided, a movable contact plate 33 on which the movable contact 11 is provided, and the like. The second housing chamber 23b houses the second terminal member 9B, the third terminal member 9C, two locking springs 110, and a release button 120. The third housing chamber 23c houses the first terminal member 9A, two locking springs 110, and a release button 120.

[0041] The first terminal member 9A comprises a terminal portion 91 to which an electric wire is connected, and a support plate 92 provided integrally with the terminal portion 91. The terminal portion 91 is arranged in the third housing chamber 23c together with two locking springs 110 and a release button 120. The support plate 92 is arranged along the rear wall of the first housing chamber 23a. The support plate 92 is provided with a groove 93 into which the rear end of the movable contact plate 33 fits. With the rear end of the movable contact plate 33 inserted into the groove 93, the movable contact plate 33 can rotate using the contact point between the rear end of the movable contact plate 33 and the support plate 92 as a pivot point (see Figures 1 and 2).

[0042] The second terminal member 9B includes a terminal portion 96 to which an electric wire is connected, and a contact plate 97 provided integrally with the terminal portion 96. The terminal portion 96 is housed in the second housing chamber 23b together with a locking spring 110. The contact plate 97 is provided with a first fixed contact 10a, and the first fixed contact 10a on the contact plate 97 is positioned at the left end of the first housing chamber 23a (see Figures 1 and 2).

[0043] The third terminal member 9C includes a terminal portion 94 to which an electric wire is connected, and a contact plate 95 provided integrally with the terminal portion 94. The terminal portion 94 is housed in the second housing chamber 23b together with the locking spring 110. A release button 120 is disposed in the second housing chamber 23b so as to be arranged between the two locking springs 110. A second fixed contact 10b is provided on the contact plate 95, and the second fixed contact 10b provided on the contact plate 95 is disposed at the right end of the first housing chamber 23a (see FIGS. 1 and 2).

[0044] Two wire insertion holes (not shown) communicating from the outside of the housing body 2 to the second housing chamber 23b are provided on the rear wall of the body 21. When two electric wires are inserted into the second housing chamber 23b through the two wire insertion holes from the outside of the housing body 2, one of the two electric wires is inserted between the terminal portion 96 of the second terminal member 9B and the locking spring 110, and the other of the two electric wires is inserted between the terminal portion 94 of the third terminal member 9C and the locking spring 110, respectively. At this time, the edge of the end portion of the locking spring bites into the conductor portion of the electric wire, thereby preventing the electric wire from coming off, and the state where the two electric wires are connected to the second terminal member 9B and the third terminal member 9C respectively is maintained. In addition, an operation hole (not shown) communicating from the outside of the housing body 2 to the second housing chamber 23b is provided on the rear wall of the body 21. When a tool such as a flat-head screwdriver is inserted from the outside of the housing body 2 into the second housing chamber 23b through the operation hole, the release button 120 is pushed and moved forward by the tool. When the release button 120 is pushed forward, the end portion of the locking spring 110 is deflected by the release button 120 in a direction away from the electric wire. Thereby, the electric wire held between the locking spring 110 and the second terminal member 9B and the electric wire held between the locking spring 110 and the third terminal member 9C can be removed respectively.

[0045] Similarly, the rear wall of the body 21 is provided with two wire insertion holes (not shown) that connect to the third storage chamber 23c from the outside of the device body 2. When a wire is inserted into the third storage chamber 23c from the outside of the device body 2 through the wire insertion holes, the wire inserted into the third storage chamber 23c is inserted between the terminal portion 91 of the first terminal member 9A and the locking spring 110. At this time, the edge of the end of the locking spring 110 bites into the conductor portion of the wire, preventing the wire from coming out and maintaining the state in which the wire is connected to the first terminal member 9A. In addition, the rear wall of the body 21 is provided with an operation hole (not shown) that connects to the third storage chamber 23c from the outside of the device body 2. When a tool such as a flathead screwdriver is inserted into the third storage chamber 23c from the outside of the device body 2 through the operation hole, the release button 120 is pushed forward by the tool. When the release button 120 is pressed forward, the release button 120 bends the end of the locking spring 110 away from the electric wire, allowing the electric wire held between the locking spring 110 and the first terminal member 9A to be released.

[0046] The movable contact plate 33 is, for example, a metal plate formed in the shape of a rectangular plate. The movable contact plate 33 is provided with movable contacts 11 at the portion facing the first fixed contact 10a and at the portion facing the second fixed contact 10b. The front end of the movable contact plate 33 is inserted into the second spring end 492 of the coil spring 49. As the direction of the coil spring 49 changes in response to the rotation of the reversing handle 4, the movable contact plate 33 swings (rotates) around the contact position between the rear end of the movable contact plate 33 and the groove 93 as the center of rotation. Here, the movable contact plate 33 is able to swing between a position in which the movable contact 11 contacts the first fixed contact 10a and a position in which the movable contact 11 contacts the second fixed contact 10b. In other words, as the movable contact plate 33 rotates in response to the rotation of the reversing handle 4, the movable contact 11 switches between a state in which it contacts the first fixed contact 10a and a state in which it contacts the second fixed contact 10b.

[0047] As shown in FIGS. 1 to 3, 5 and 7, the cover 22 includes a pair of first wall portions 221 opposing each other in the Z-axis direction, and a pair of second wall portions 222 opposing each other in the Y-axis direction. A recess 223 surrounded by the pair of first wall portions 221 and the pair of second wall portions 222 is provided on the front surface of the cover 22, and at least a part of the reversing handle 4 and at least parts of the first intermediate handle 7A and the second intermediate handle 7B are disposed in the recess 223. A rectangular through-hole 225 penetrating the bottom wall in the X-axis direction is provided on the bottom wall of the recess 223. A part of the reversing handle 4 (more specifically, a cylindrical portion 44 described later) is inserted into the through-hole 225.

[0048] Furthermore, in each of the pair of first wall portions 221, a bearing portion 24A that rotatably supports the first intermediate handle 7A is provided at a first end in the Y-axis direction (for example, the right end), and a bearing portion 24B that rotatably supports the second intermediate handle 7B is provided at a second end in the Y-axis direction (for example, the left end).

[0049] The first intermediate handle 7A has a rectangular plate shape, and a shaft projection 73 is provided at a first end (right end) in the third direction DR3. By inserting the shaft projection 73 into a shaft hole 241 provided in the bearing portion 24A, the first intermediate handle 7A is supported by the cover 22 in a state rotatable about the shaft projection 73. A first end portion 701 of the first intermediate handle 7A protrudes toward the swinging portion 40 side in the third direction DR3, and opposes the first arm portion 41 of the reversing handle 4 in the first direction DR1.

[0050] The second intermediate handle 7B has a rectangular plate shape, and a shaft projection 75 is provided at a first end (left end) in the third direction DR3. By inserting the shaft projection 75 into a shaft hole 242 provided in the bearing portion 24B, the second intermediate handle 7B is supported by the cover 22 in a state rotatable about the shaft projection 75. A second end portion 702 of the second intermediate handle 7B protrudes toward the swinging portion 40 side in the third direction DR3, and opposes the second arm portion 42 of the reversing handle 4 in the first direction DR1.

[0051] Furthermore, each of the pair of first wall portions 221 is provided with a support portion 25 that protrudes forward from the central portion in the left-right direction. In other words, the cover 22 has a pair of support portions 25 that face each other in the Z-axis direction with a recess 223 in between.

[0052] The pair of support portions 25 each protrude forward from the front end of the pair of first wall portions 221. Each of the inner surfaces of the pair of support portions 25 (more specifically, the surface facing the oscillating portion 40 of the reversing handle 4 located in the recess 223) is provided with a retaining groove 26 (see Figures 3 and 11) into which the axial projection 43 provided on the side wall of the oscillating portion 40 is inserted.

[0053] Here, the retaining groove 26 is provided on the inner surface of the support portion 25, extending forward from the rear end of the cover 22 to near the front end of the support portion 25. The front end portion of the retaining groove 26 is formed in a V-shape such that the groove width narrows towards the front end (see Figure 3). On the other hand, the front end portion of the axial projection 43 of the oscillating portion 40 is formed in a V-shape such that the width in the left-right direction narrows towards the front end (see Figure 3). Here, the tip of the axial projection 43 of the oscillating portion 40 that contacts the retaining groove 26 of the cover 22 becomes the second rotation axis AX2 (see Figure 11), and the oscillating portion 40 rotates around the second rotation axis AX2. In this way, the device body 2 (cover 22 in this embodiment) has a retaining groove 26 that supports the axial projection 43 of the reversing handle 4 in a rotatable state.

[0054] (2.1.2) Reversing Handle The reversing handle 4 is attached to the body 2 in a manner that allows it to rotate around the second rotation axis AX2 (see Figure 11). More specifically, the reversing handle 4 has a swinging part 40 that is attached to the cover 22 in a manner that allows it to rotate. The swinging part 40 is positioned between the first middle handle 7A and the second middle handle 7B in the third direction DR3 (see Figures 1 and 2). The swinging part 40 is provided with axial projections 43 at the portions facing each of the pair of support parts 25 provided on the cover 22, which are inserted into retaining grooves 26 provided on the support parts 25.

[0055] When the two shaft projections 43 of the reversing handle 4 are inserted into the two retaining grooves 26 provided in the two support parts 25, the reversing handle 4 can swing within a predetermined angular range with the contact point between the retaining grooves 26 and the shaft projections 43 as the center of rotation. Here, the front end portion of the shaft projection 43 is formed in a V shape, and the front end portion of the retaining groove 26 is formed in a V shape with a larger angle than the shaft projection 43. Therefore, the front end portion of the shaft projection 43 that contacts the front end portion of the retaining groove 26 becomes the second axis of rotation AX2 when the reversing handle 4 rotates. In other words, the reversing handle 4 is attached to the device body 2 in a state in which it can rotate around the second axis of rotation AX2 which is parallel to the second direction DR2.

[0056] The oscillating portion 40 of the reversing handle 4 has a cylindrical portion 44 that protrudes in the first direction DR1 on the opposite side from the outer handle 6 (see Figures 1 and 2). The cylindrical portion 44 is a cylindrical part that protrudes rearward from the oscillating portion 40. In this embodiment, the oscillating portion 40 and the cylindrical portion 44 are formed integrally, for example. However, the oscillating portion 40 and the cylindrical portion 44 may be formed separately.

[0057] The cylindrical portion 44 is inserted into the through hole 225 of the cover 22. The first spring end 491 of the coil spring 49 is inserted into the cylindrical portion 44 and fixed to the cylindrical portion 44. The second spring end 492 of the coil spring 49 is exposed from the rear end of the cylindrical portion 44. The front end of the movable contact plate 33 is inserted into the coil spring 49 from the second spring end 492. In this way, the first spring end 491 of the coil spring 49 is positioned inside the cylindrical portion 44, and a part of the movable contact plate 33 is inserted into the second spring end 492 of the coil spring 49. As the position of the second spring end 492 of the coil spring 49 changes in response to the rotation of the reversing handle 4, the open and closed state of the movable contact 11 and the fixed contact 10 (including the first fixed contact 10a and the second fixed contact 10b in this embodiment) provided on the movable contact plate 33 is switched. In other words, the fixed contact 10 that the movable contact 11 contacts switches to either the first fixed contact 10a or the second fixed contact 10b.

[0058] As shown in Figures 1 to 3, the first arm portion 41 and the second arm portion 42 protrude from the oscillating portion 40 to both sides in the third direction DR3, respectively. In this embodiment, the oscillating portion 40, the first arm portion 41, the second arm portion 42, and the cylindrical portion 44 are realized as a single molded resin product. The right first arm portion 41 and the left second arm portion 42 are formed in a symmetrical shape with respect to the oscillating portion 40, and the right first arm portion 41 and the left second arm portion 42 are formed in the same shape.

[0059] The right-side first arm portion 41 faces the first end portion 701 of the first middle handle 7A in the first direction DR1. The first end portion 701 of the first middle handle 7A is provided with a projection 74 that protrudes toward the first arm portion 41. The surface of the projection 74 is formed as a convex curved surface that is convex toward the first arm portion 41. The end portion 411 of the first arm portion 41 opposite to the swing portion 40 is located between the first end portion 701 of the first middle handle 7A and the first contact portion 71 in the third direction DR3 (see Figures 1 and 2). In other words, the end portion 411 of the first arm portion 41 is located between the first end portion 701 of the first middle handle 7A that contacts the first arm portion 41 and the first contact portion 71 in the third direction DR3. On the front surface of the first arm portion 41, a rectangular projection 45 is provided that extends along the third direction DR3 at a position that contacts the projection 74 of the first middle handle 7A. The projection 74 contacts the protruding portion 45 of the first central handle 7A, which allows the first central handle 7A and the first arm portion 41 to rotate smoothly.

[0060] The left-side second arm portion 42 faces the second end portion 702 of the second middle handle 7B in the first direction DR1. The second end portion 702 of the second middle handle 7B is provided with a projection 76 that protrudes toward the second arm portion 42. The surface of the projection 76 is formed as a convex curved surface that is convex toward the second arm portion 42. The end portion 421 of the second arm portion 42 opposite to the swing portion 40 is located between the second end portion 702 of the second middle handle 7B and the second contact portion 72 in the third direction DR3 (see Figures 1 and 2). In other words, the end portion 421 of the second arm portion 42 is located between the second end portion 702 of the second middle handle 7B that contacts the second arm portion 42 and the second contact portion 72 in the third direction DR3. On the front surface of the second arm portion 42, a rectangular projection 45 is provided that extends along the third direction DR3 at a position that contacts the projection 76 of the second middle handle 7B. The projection 76 contacts the ridge 45 of the second central handle 7B, which allows the rotation of the second central handle 7B and the second arm 42 to proceed smoothly.

[0061] (2.1.3) The first middle handle and the second middle handle switch 1 include a first middle handle 7A that pushes the first arm portion 41 when the right end (first projection 65 side) of the outer handle 6 is pressed, and a second middle handle 7B that pushes the second arm portion 42 when the left end (second projection 66 side) of the outer handle 6 is pressed. The first middle handle 7A and the second middle handle 7B have the same shape.

[0062] The first middle handle 7A is formed in the shape of a rectangular plate. At the right end of the first middle handle 7A, cylindrical shaft projections 73 are provided on both sides in the second direction DR2. The first middle handle 7A is attached to the cover 22 in a state in which it can rotate around the third rotation axis AX3, which is the central axis of the shaft projection 73, with the shaft projection 73 inserted into the shaft hole 241 of the bearing portion 24A. The first end portion 701 of the first middle handle 7A is positioned between the outer handle 6 and the first arm portion 41 of the reversing handle 4 in a state in which it can move in the first direction DR1.

[0063] The first intermediate handle 7A is provided with a projection 74 on the surface facing the first arm portion 41. The first intermediate handle 7A contacts the first arm portion 41 at its first end 701 opposite to the third rotation axis AX3, and more specifically at the projection 74 on the surface facing the first arm portion 41. The surface of the projection 74 is a convex curved surface that protrudes toward the first arm portion 41. Because the surface shape of the projection 74 is formed as a curved surface, the projection 74 can move smoothly when it moves while contacting the surface of the first arm portion 41.

[0064] A first contact portion 71 is provided on the surface of the first middle handle 7A facing the outer handle 6, which is capable of contacting the first projection 65 provided on the outer handle 6. The first contact portion 71 is formed in a semi-cylindrical shape, for example, with its axial direction parallel to the second direction DR2. The surface of the first contact portion 71 is a convex curved surface that protrudes toward the first projection 65. Because the surface shape of the first contact portion 71 is formed in a curved shape, the first contact portion 71 can move smoothly when it moves while in contact with the first contact surface 651 of the first projection 65.

[0065] The second middle handle 7B is formed in the same rectangular plate shape as the first middle handle 7A. The left end of the second middle handle 7B is provided with cylindrical shaft projections 75 on both sides in the second direction DR2. The second middle handle 7B is attached to the cover 22 in a state in which it can rotate around the fourth rotation axis AX4, which is the central axis of the shaft projection 75, with the shaft projection 75 inserted into the shaft hole 242 of the bearing portion 24B. The second end portion 702 of the second middle handle 7B is positioned between the outer handle 6 and the second arm portion 42 of the reversing handle 4 in a state in which it can move in the first direction DR1.

[0066] The second intermediate handle 7B is provided with a projection 76 on the surface facing the second arm portion 42. The second intermediate handle 7B contacts the second arm portion 42 at the second end 702 opposite to the fourth rotation axis AX4, and more specifically at the projection 76 on the surface facing the second arm portion 42. The surface of the projection 76 is a convex curved surface that protrudes toward the second arm portion 42. Because the surface shape of the projection 76 is formed as a curved surface, the projection 76 can move smoothly when it moves while contacting the surface of the second arm portion 42.

[0067] A second contact portion 72 is provided on the surface of the second middle handle 7B facing the outer handle 6, which is capable of contacting the second projection 66 provided on the outer handle 6. The second contact portion 72 is formed in a semi-cylindrical shape, for example, with its axial direction parallel to the second direction DR2. The surface of the second contact portion 72 is a convex curved surface that protrudes toward the second projection 66. Because the surface shape of the second contact portion 72 is formed in a curved shape, the second contact portion 72 can move smoothly when it moves while in contact with the second contact surface 661 of the second projection 66.

[0068] In this embodiment, in the first intermediate handle 7A, the distance L6 between the third rotation axis AX3 and the first end portion 701 is greater than the distance L5 between the third rotation axis AX3 and the first contact portion 71 (see Figure 9). Also, in the second intermediate handle 7B, the distance L8 between the fourth rotation axis AX4 and the second end portion 702 is greater than the distance L7 between the fourth rotation axis AX4 and the second contact portion 72 (see Figure 9). As a result, when the outer handle 6 rotates, the amount of movement of the first end portion 701 that pushes the first arm portion 41 of the reversing handle 4 can be made greater than the amount of movement of the first contact portion 71 that is pushed by the first projection 65. Similarly, when the outer handle 6 rotates, the amount of movement of the second end portion 702 that pushes the second arm portion 42 of the reversing handle 4 can be made greater than the amount of movement of the second contact portion 72 that is pushed by the second projection 66. Therefore, when the outer handle 6 rotates, the rotation angle of the reversing handle 4 can be made greater than the rotation angle of the outer handle 6. In other words, the rotation angle of the outer handle 6 can be made smaller compared to the rotation angle of the reversing handle 4 when closing or opening the fixed contact 10 and the movable contact 11.

[0069] In this embodiment, when the outer handle 6 is in the first rotation position, the orientation of the surface of the outer handle 6 is parallel to the third direction DR3 (see Figures 1 and 5), and when the outer handle 6 is in the second rotation position, the orientation of the surface of the outer handle 6 is inclined with respect to the third direction DR3 (see Figure 2). As described above, the rotation angle of the outer handle 6 is smaller than the rotation angle of the reversing handle 4 when closing or opening the fixed contact 10 and the movable contact 11, so the amount of movement of the end of the outer handle 6 in the first direction DR1 in response to the rotation of the outer handle 6 can be reduced. Therefore, the distance from the surface of the mounting object 300 to the surface of the outer handle 6 can be reduced, and the protrusion of the switch device 100 from the surface of the mounting object 300 can be reduced, thus improving the aesthetic appearance.

[0070] (2.2) Wiring device system The switch device 100 of this embodiment comprises a switch 1 and an external handle 6, as described above. The wiring device system A1 of this embodiment comprises the switch device 100 and a mounting frame 8 (see Figures 1, 2 and 4 to 9).

[0071] (2.2.1) External Handle The external handle 6 provided in the switch device 100 of this embodiment is a single-unit external handle 6 used when only one switch 1 is mounted on the mounting frame 8.

[0072] The external handle 6 is subjected to a pushing force by the operator. The external handle 6 has a handle body 60 that is operated by the operator. The handle body 60 has a rectangular plate-shaped front wall 601 and a side wall 602 that protrudes rearward from the outer circumference of the front wall 601. The handle body 60 is formed in a rectangular plate shape that is sufficiently larger than the size of the switch 1 when viewed from the front or rear direction. In the case of a single external handle 6, the size of the handle body 60 when viewed from the front is approximately the same as the size of the mounting frame 8 when viewed from the front. The switch 1 is mounted on the mounting frame 8 in an orientation such that the longitudinal direction of the device body 2 is parallel to the short direction of the mounting frame 8. The external handle 6 is then positioned on the front side of the device body 2 in an orientation such that the longitudinal direction of the device body 2 of the switch 1 and the short direction of the external handle 6 are parallel.

[0073] The handle body 60 has a rectangular shape when viewed from the front, and the handle body 60 covers at least a part of the device body 2 when viewed from the first direction DR1. In this embodiment, the handle body 60 covers the entire device body 2 when viewed from the first direction DR1. The handle body 60 has an operating surface (the front surface of the front wall 601) that receives input from the operator. On the rear surface of the handle body 60 (the surface S1 facing the reversing handle 4), four gripping portions 62 are provided in the center of the short-side direction (third direction DR3) of the handle body 60 (see Figure 8). The four gripping portions 62 are spaced apart from each other in the longitudinal direction of the handle body 60. The mounting frame 8 has four projections 86 (see Figures 7 and 8) spaced apart from each other in the longitudinal direction of the mounting frame 8. The four projections 86 are cylindrical in shape with the second direction DR2 as their axial direction, and the four gripping parts 62 each grip the four projections 86, thereby mounting the outer handle 6 to the mounting frame 8 in a rotatable manner. As a result, the outer handle 6 is mounted to the mounting frame 8 in a manner that allows it to rotate around the first rotation axis AX1, which is the central axis of the four projections 86.

[0074] Furthermore, on the rear surface (opposing surface S1) of the handle body 60, three first protrusions 65 are provided at the center in the longitudinal direction, opposite to the first contact portion 71 of the first intermediate handle 7A (see Figures 8 and 12). The three first protrusions 65 have a trapezoidal shape when viewed along the longitudinal direction (second direction) of the handle body 60. The tip surfaces of the first protrusions 65 become the first contact surfaces 651 that contact the first contact portion 71 of the first intermediate handle 7A. The first contact surfaces 651 of the first protrusions 65 are inclined such that, when viewed from the longitudinal direction (second direction DR2) of the handle body 60, the amount of protrusion from the rear surface (opposing surface S1) increases as it approaches the center in the short direction of the handle body 60 (see Figures 1, 2 and 12). The outer handle 6 has a first projection 65 that protrudes from the handle body 60 toward the first middle handle 7A, and the first projection 65 is capable of contacting the first contact portion 71 of the first middle handle 7A.

[0075] Furthermore, on the rear surface (opposing surface S1) of the handle body 60, three second protrusions 66 are provided at the center in the longitudinal direction, opposite to the second contact portion 72 of the second intermediate handle 7B (see Figures 8 and 12). The three second protrusions 66 have a trapezoidal shape when viewed along the longitudinal direction (second direction) of the handle body 60. The tip surfaces of the second protrusions 66 become second contact surfaces 661 that contact the second contact portion 72 of the second intermediate handle 7B. The second contact surfaces 661 of the second protrusions 66 are inclined such that, when viewed from the longitudinal direction (second direction DR2) of the handle body 60, the amount of protrusion from the rear surface (opposing surface S1) increases as it approaches the center in the short direction of the handle body 60 (see Figures 1, 2, and 12). The outer handle 6 has a second projection 66 that protrudes from the handle body 60 toward the second middle handle 7B, and the second projection 66 is capable of contacting the second contact portion 72 of the second middle handle 7B.

[0076] Since the outer handle 6 is equipped with a first projection 65 and a second projection 66, the pushing force applied to the outer handle 6 can be transmitted to the reversing handle 4 via the first middle handle 7A or the second middle handle 7B.

[0077] The outer handle 6 stops when the first projection 65 contacts the first contact portion 71 of the first middle handle 7A, and the second projection 66 contacts the second contact portion 72 of the second middle handle 7B. As the reversing handle 4 rotates, the position of the first contact portion 71 of the first middle handle 7A and the position of the second contact portion 72 of the second middle handle 7B in the first direction DR1 change. As a result, the stopping position of the outer handle 6 (the first rotation position and the second rotation position described above) changes according to the open / closed state of the movable contact 11 and the fixed contact 10.

[0078] Here, the reversing handle 4 rotates by equal angles to the left and right with respect to a center line that passes through the second rotation axis AX2 and is parallel to the first direction DR1.

[0079] When the right end of the outer handle 6 is pressed while the movable contact 11 is in contact with the second fixed contact 10b (see Figure 2), the outer handle 6 rotates clockwise in Figure 1, and the first projection 65 pushes the first contact portion 71 of the first middle handle 7A backward. As a result, the projection 74 of the first middle handle 7A pushes the first arm portion 41 backward, and the reversing handle 4 rotates clockwise in Figure 2, switching the movable contact 11 to a state where it is in contact with the first fixed contact 10a. Also, when the reversing handle 4 rotates clockwise in Figure 2, the second arm portion 42 pushes the projection 76 of the second middle handle 7B forward, and the second contact portion 72 of the second middle handle 7B pushes the second projection 66 of the outer handle 6 forward, causing the outer handle 6 to move to the first rotation position (see Figure 1).

[0080] Furthermore, when the movable contact 11 is in contact with the first fixed contact 10a, the second contact portion 72 of the second middle handle 7B is positioned further forward than the first contact portion 71 of the first middle handle 7A. Here, since the amount of protrusion of the second projection 66 is set to be smaller than the amount of protrusion of the first projection 65, the orientation of the outer handle 6 is parallel to the third direction DR3 and parallel to the surface of the mounting object 300 to which the device body 2 is attached.

[0081] When the left end of the outer handle 6 is pressed while the movable contact 11 is in contact with the first fixed contact 10a (see Figure 1), the outer handle 6 rotates counterclockwise in Figure 1, and the second projection 66 pushes the second contact portion 72 of the second middle handle 7B backward. As a result, the projection 76 of the second middle handle 7B pushes the second arm portion 42 backward, and the reversing handle 4 rotates counterclockwise in Figure 1, switching the movable contact 11 to a state where it is in contact with the second fixed contact 10b. Also, when the reversing handle 4 rotates counterclockwise in Figure 1, the first arm portion 41 pushes the projection 74 of the first middle handle 7A forward, and the first contact portion 71 of the first middle handle 7A pushes the first projection 65 of the outer handle 6 forward, causing the outer handle 6 to move to the second rotation position (see Figure 2).

[0082] Furthermore, when the movable contact 11 is in contact with the second fixed contact 10b, the first contact portion 71 of the first middle handle 7A is positioned further forward than the second contact portion 72 of the second middle handle 7B. Here, since the protrusion amount of the first projection 65 is set to be greater than the protrusion amount of the second projection 66, the orientation of the outer handle 6 is inclined with respect to the surface of the mounting object 300 such that the left end of the outer handle 6 is closer to the surface of the mounting object 300 than the right end.

[0083] Thus, in this embodiment, when the movable contact 11 is in contact with the first fixed contact 10a, the outer handle 6 is positioned parallel to the surface of the mounting object 300 to which the device body 2 is attached. When the movable contact 11 is in contact with the second fixed contact 10b, the outer handle 6 is tilted such that the end (left end) closer to the second arm portion 42 in the third direction DR3 is closer to the surface of the mounting object 300 than the end (right end) closer to the first arm portion 41.

[0084] In this embodiment, the shapes of the first projection 65 and the second projection 66 are different when viewed along the second direction DR2. In this embodiment, the shapes of the first projection 65 and the second projection 66 are trapezoidal when viewed along the second direction DR2, but the amount of protrusion of the first projection 65 and the second projection 66 are different, and the inclinations of the first contact surface 651 and the second contact surface 661 are also different. As a result, the first projection 65 and the second projection 66 are formed in an asymmetric shape with respect to a plane passing through the first rotation axis AX1 and parallel to the first direction DR1.

[0085] Furthermore, the first contact surface 651 of the first projection 65 that can contact the first contact portion 71 is inclined with respect to the third direction DR3, and the second contact surface 661 of the second projection 66 that can contact the second contact portion 72 is inclined with respect to the third direction DR3.

[0086] More specifically, the first contact surface 651 is inclined such that the amount of protrusion of the first projection 65 decreases as it moves away from the first rotation axis AX1, and the second contact surface 661 is inclined such that the amount of protrusion of the second projection 66 decreases as it moves away from the first rotation axis AX1.

[0087] As a result, when the right end of the outer handle 6 is pressed, as the rotation angle of the outer handle 6 increases, the amount of protrusion of the portion of the first projection 65 that contacts the first contact portion 71 of the first middle handle 7A increases, so that the rotation angle of the first middle handle 7A can be increased. Also, when the left end of the outer handle 6 is pressed, as the rotation angle of the outer handle 6 increases, the amount of protrusion of the portion of the second projection 66 that contacts the second contact portion 72 of the second middle handle 7B increases, so that the rotation angle of the second middle handle 7B can be increased.

[0088] Furthermore, the inclination angle θ1 of the first contact surface 651 with respect to the third direction DR3 and the inclination angle θ2 of the second contact surface 661 with respect to the third direction DR3 are different from each other. By making the inclination angle θ1 of the first contact surface 651 with respect to the third direction DR3 and the inclination angle θ2 of the second contact surface 661 with respect to the third direction DR3 different, the position of the outer handle 6 at the first rotation position and the position of the outer handle 6 at the second rotation position can be set to desired positions. In this embodiment, the inclination angle θ2 of the second contact surface 661 with respect to the third direction DR3 is larger than the inclination angle θ1 of the first contact surface 651 with respect to the third direction DR3.

[0089] Furthermore, in this embodiment, as shown in Figure 12, the amount of protrusion L1 of the first projection 65 near the first rotation axis AX1 and the amount of protrusion L3 of the second projection 66 near the first rotation axis AX1 are different from each other. Also, the amount of protrusion L2 of the first projection 65 far from the first rotation axis AX1 and the amount of protrusion L4 of the second projection 66 far from the first rotation axis AX1 are different from each other. By adjusting these protrusion amounts L1 to L4, the inclination angle θ1 of the first contact surface 651 with respect to the third direction DR3 and the inclination angle θ2 of the second contact surface 661 with respect to the third direction DR3 can be set to desired angles. Then, the orientation of the outer handle 6 when it is in the first rotation position and the orientation of the outer handle 6 when it is in the second rotation position can be set to desired orientations.

[0090] In this embodiment, the outer handle 6 rotates to the first rotation position when the portion on the side of the first projection 65 is pushed relative to the first rotation axis AX1, and rotates to the second rotation position when the portion on the side of the second projection 66 is pushed relative to the first rotation axis AX1. When the outer handle 6 is rotated to the first rotation position, the outer handle 6 is parallel to the third direction DR3. When the outer handle 6 is rotated to the second rotation position, the outer handle 6 is inclined relative to the third direction DR3. The amount of protrusion L1 of the portion of the first projection 65 closest to the first rotation axis AX1 is greater than the amount of protrusion L3 of the portion of the second projection 66 closest to the first rotation axis AX1, so that the outer handle 6 is parallel to the third direction DR3 at the first rotation position and inclined relative to the third direction DR3 at the second rotation position. Furthermore, the amount of protrusion L2 of the first projection 65 at the portion furthest from the first rotation axis AX1 is greater than the amount of protrusion L4 of the second projection 66 at the portion furthest from the first rotation axis AX1.

[0091] Thus, in the first state, when the outer handle 6 is in the first rotation position, the outer handle 6 is parallel to the third direction DR3. On the other hand, in the second state, when the outer handle 6 is rotated to the second rotation position, the outer handle 6 is inclined with respect to the third direction DR3. Therefore, the user can determine the switching state between the movable contact 11 and the fixed contact 10 based on whether or not the outer handle 6 is inclined with respect to the third direction DR3, which has the advantage of improving usability.

[0092] (2.2.2) The mounting frame switch device 100 further comprises a mounting frame 8 that holds the device body 2 and can be attached to the object to be mounted 300. More specifically, the mounting frame 8 has a frame body 80 made of synthetic resin material or metal material, which is formed in a rectangular plate shape when viewed from the front (see Figures 6 to 9).

[0093] Recesses 83 are provided at both ends of the frame body 80 of the mounting frame 8 in the longitudinal direction. At the bottom of the recesses 83 are a plurality of insertion holes 84, 85 into which screws (not shown) for fixing the mounting frame 8 to the installation surface are inserted. For example, if a switch box is embedded in the wall which is the object to be mounted 300, the mounting frame 8 can be fixed to the object to be mounted 300 by screwing screws through the insertion holes 85 into the screw holes of the switch box. Also, if the object to be mounted 300 is a wall material such as gypsum board, the mounting frame 8 can be fixed to the object to be mounted 300 by screwing tapping screws through the insertion holes 84 into the wall material.

[0094] The frame 80 of the mounting frame 8 has two fitting holes 87 (see Figures 6 and 7) arranged in the longitudinal direction in the center of the frame, into which two mounting claws 226, each provided on a pair of second wall portions 222 of the switch 1, are fitted. The body 2 of the switch 1 is attached to the mounting frame 8 by fitting the mounting claws 226 of the switch 1 into the fitting holes 87 of the mounting frame 8.

[0095] Furthermore, the frame body 80 of the mounting frame 8 is provided with three window holes 81a, 81b, and 81c in the center in the longitudinal direction. The three window holes 81a, 81b, and 81c are rectangular holes, and the front end of the swinging part 40 of the reversing handle 4 is inserted into the window hole 81a, which is in the center in the short direction. The first middle handle 7A and the second middle handle 7B are positioned in the window holes 81b and 81c on both sides in the short direction, respectively (see Figure 6).

[0096] Furthermore, in the frame body 80 of the mounting frame 8, projections 86 are provided on the inner walls of recesses 83 provided on both sides in the longitudinal direction, which are gripped by the gripping portion 62 of the outer handle 6. Also, projections 86 are provided in the window hole 81a of the mounting frame 8, which are gripped by the gripping portion 62 of the outer handle 6. The projections 86 are formed in a cylindrical shape with their central axis oriented in a direction parallel to the longitudinal direction of the mounting frame 8 (second direction DR2). The inner surface of the gripping portion 62 of the outer handle 6 follows the cylindrical side surface of the projection 86. When the gripping portion 62 of the outer handle 6 grips the projection 86 of the mounting frame 8, the outer handle 6 becomes pivotable with the projection 86 as the fulcrum. More specifically, the multiple projections 86 are arranged in a line in the second direction DR2, and the central axis of the cylindrical projections 86 becomes the first rotation axis AX1 (see Figure 7) parallel to the second direction DR2. In this manner, the outer handle 6 is mounted on the mounting frame 8 in a rotatable manner. When the outer handle 6 is mounted on the mounting frame 8, the outer handle 6 is pivotable around the first rotation axis AX1.

[0097] Furthermore, when the outer handle 6 is attached to the mounting frame 8, the first projection 65 of the outer handle 6 is inserted into the window hole 81b of the mounting frame 8, and the first projection 65 contacts the first contact portion 71 of the first middle handle 7A. Also, when the outer handle 6 is attached to the mounting frame 8, the second projection 66 of the outer handle 6 is inserted into the window hole 81c of the mounting frame 8, and the second projection 66 contacts the second contact portion 72 of the second middle handle 7B.

[0098] When the outer handle 6 rotates in response to a pushing force from the operator, the pushing force applied to the outer handle 6 is transmitted to the reversing handle 4 via the first middle handle 7A or the second middle handle 7B, causing the reversing handle 4 to rotate and the movable contact 11 and the fixed contact 10 to open or close.

[0099] (2.3) Operation of the switch device The operation of the switch device 100 will be described below. In the following description, it will be assumed that in the initial state, as shown in Figure 1, the outer handle 6 is parallel to the third direction DR3 and the movable contact 11 and the first fixed contact 10a are in contact.

[0100] When the movable contact 11 is in contact with the first fixed contact 10a (see Figure 1), the movable contact plate 33 is tilted to the left with the contact point with the support plate 92 as the pivot point. At this time, the reversing handle 4 is rotated clockwise around the second rotation axis AX2, and the coil spring 49 inserted into the cylindrical portion 44 of the reversing handle 4 maintains the movable contact plate 33 in a tilted state to the left. Furthermore, the second arm portion 42 of the reversing handle 4 pushes the second end portion 702 of the second middle handle 7B forward, causing the second contact portion 72 of the second middle handle 7B to push the second projection 66 forward, and the outer handle 6 becomes parallel to the third direction DR3.

[0101] When the operator pushes the part of the outer handle 6 on the side of the second projection 66 (left side in Figure 1) backward relative to the first rotation axis AX1, the outer handle 6 rotates (oscillates) counterclockwise around the first rotation axis AX1. As the outer handle 6 rotates counterclockwise around the first rotation axis AX1, the second projection 66 pushes the second contact portion 72 of the second middle handle 7B backward. As a result, the second middle handle 7B rotates (oscillates) clockwise around the fourth rotation axis AX4, and a pushing force is transmitted from the projection 76 of the second middle handle 7B to the second arm portion 42 of the reversing handle 4. Here, in the third direction DR3, the end portion 421 of the second arm portion 42 is located between the second end portion 702 of the second middle handle 7B and the second contact portion 72, so a sufficient distance is secured between the second end portion 702 of the second middle handle 7B and the end portion 421 of the second arm portion 42. As a result, the second end portion 702 of the second central handle 7B is less likely to detach from the second arm portion 42, and the pushing force is reliably transmitted from the second central handle 7B to the second arm portion 42 of the reversing handle 4. Consequently, the reversing handle 4 rotates (oscillates) counterclockwise around the second rotation axis AX2.

[0102] As the reversing handle 4 rotates counterclockwise, the second spring end 492 of the coil spring 49 inserted inside the cylindrical portion 44 of the reversing handle 4 moves to the right. Here, since the end of the movable contact plate 33 is inserted into the second spring end 492 of the coil spring 49, the movable contact plate 33 rotates clockwise around the contact point with the support plate 92 as the pivot point. As a result, the movable contact 11 moves away from the first fixed contact 10a and to a position where it contacts the second fixed contact 10b (see Figure 2).

[0103] Subsequently, with the movable contact 11 in contact with the second fixed contact 10b (see Figure 2), when the operator pushes the part of the outer handle 6 on the side of the first projection 65 (right side in Figure 2) backward relative to the first rotation axis AX1, the outer handle 6 rotates (oscillates) clockwise around the first rotation axis AX1. As the outer handle 6 rotates clockwise around the first rotation axis AX1, the first projection 65 pushes the first contact portion 71 of the first middle handle 7A backward. As a result, the first middle handle 7A rotates (oscillates) counterclockwise around the third rotation axis AX3, and a pushing force is transmitted from the projection 74 of the first middle handle 7A to the first arm portion 41 of the reversing handle 4. Here, in the third direction DR3, the end 411 of the first arm portion 41 is located between the first end 701 of the first central handle 7A and the first contact portion 71, so that a sufficient distance is secured between the first end 701 of the first central handle 7A and the end 411 of the first arm portion 41. As a result, the end 411 of the first central handle 7A is less likely to come off the first arm portion 41, and the pushing force is reliably transmitted from the first central handle 7A to the first arm portion 41 of the reversing handle 4. As a result, the reversing handle 4 rotates (oscillates) clockwise around the second rotation axis AX2.

[0104] As the reversing handle 4 rotates clockwise, the second spring end 492 of the coil spring 49 inserted inside the cylindrical portion 44 of the reversing handle 4 moves to the left. Here, since the end of the movable contact plate 33 is inserted into the second spring end 492 of the coil spring 49, the movable contact plate 33 rotates counterclockwise around the contact point with the support plate 92. As a result, the movable contact 11 moves away from the second fixed contact 10b and to a position where it contacts the first fixed contact 10a (see Figure 1).

[0105] (3) Modification The above embodiments are only one of many embodiments of the present disclosure. The above embodiments can be modified in various ways depending on the design, etc., as long as the objectives of the present disclosure are achieved.

[0106] The following lists some modifications of the above embodiment. The modifications described below can be combined and applied as appropriate.

[0107] In the above embodiment, switch 1 was a c-contact type switch, but it may also be a b-contact type switch or an a-contact type switch.

[0108] Figure 13 is a cross-sectional view of the b-contact type switch device 100 in the off state, and Figure 14 is a cross-sectional view of the b-contact type switch device 100 in the on state. The b-contact type switch 1 differs from the switch 1 of the above embodiment in that the fixed contact 10 consists only of the second fixed contact 10b. In the switch device 100 equipped with the b-contact type switch 1, when the outer handle 6 is in the first rotation position, the movable contact 11 is in the off state, separated from the fixed contact 10. When the outer handle 6 is in the second rotation position, the movable contact 11 is in contact with the fixed contact 10, in the on state. Therefore, in the off state, the orientation of the outer handle 6 is parallel to the third direction DR3, and in the on state, the orientation of the outer handle 6 is inclined with respect to the third direction DR3. Thus, the open / closed state of the movable contact 11 and the fixed contact 10 can be determined by whether or not the outer handle 6 is parallel to the third direction DR3, which has the advantage of improving usability.

[0109] In the above embodiment, one switch 1 is mounted on the mounting frame 8, but multiple switches (up to three) may be mounted on the mounting frame 8. When multiple switches 1 are mounted on the mounting frame 8, an external handle 6 should be attached to each of the multiple switches 1. When multiple switches 1 are mounted on the mounting frame 8, the mounting frame 8 should be provided with window holes 81a, 81b, and 81c, one for each switch 1, that expose the swinging part 40, the first middle handle 7A, and the second middle handle 7B of the multiple switches 1, respectively.

[0110] Furthermore, in the above embodiment, the outer handle 6 is attached to the mounting frame 8, but the outer handle 6 may be attached to both the mounting frame 8 and the device body 2, or it may be attached only to the device body 2.

[0111] Furthermore, in the above embodiment, the mounting frame 8 is attached to the surface of the object to be mounted 300 such that its longitudinal direction is parallel to the vertical direction and its short direction is parallel to the horizontal direction, but the mounting direction can be changed as appropriate. The mounting frame 8 may also be attached to the surface of the object to be mounted 300 in a orientation where its longitudinal direction is parallel to the horizontal direction and its short direction is parallel to the vertical direction.

[0112] In the above embodiment, the case where the mounting object 300 to which the mounting frame 8 is attached is a building wall was described as an example, but the mounting object 300 may also be equipment such as a desk placed inside the building. Furthermore, the mounting object 300 may also be a moving object such as a railway vehicle, ship, or aircraft.

[0113] In the above embodiment, the amount of protrusion of the first projection 65 from the opposing surface S1 of the handle body 60 may be a constant length in the third direction DR3. That is, the first contact surface 651 of the first projection 65 may be a flat surface parallel to the front surface of the handle body 60. Also, the amount of protrusion of the second projection 66 from the opposing surface S1 of the handle body 60 may be a constant length in the third direction DR3. That is, the second contact surface 661 of the second projection 66 may be a flat surface parallel to the front surface of the handle body 60.

[0114] In the above embodiment, when the outer handle 6 is in the first rotation position, the orientation of the outer handle 6 is parallel to the third direction DR3. However, the orientation of the outer handle 6 in the first and second rotation positions can be appropriately changed by changing the amount of protrusion of the first projection 65 and the second projection 66.

[0115] For example, the protrusion amounts of the first projection 65 and the second projection 66 may be set such that when the outer handle 6 is in the first rotation position, the orientation of the outer handle 6 is tilted in one direction with respect to the third direction DR3, and when the outer handle 6 is in the second rotation position, the orientation of the outer handle 6 is tilted in the opposite direction with respect to the third direction DR3.

[0116] (Summary) The following embodiments are disclosed from the embodiments described above. In the following, reference numerals are enclosed in parentheses solely to indicate the correspondence with the embodiments described above.

[0117] The switch device (100) of the first embodiment comprises a switch (1) and an outer handle (6). The switch (1) has a body (2) that houses a fixed contact (10) and a movable contact (11). The outer handle (6) is positioned to overlap with the switch (1) in a first direction (DR1) and is rotatable about a first rotation axis (AX1) parallel to a second direction (DR2) perpendicular to the first direction (DR1). The switch (1) comprises a reversing handle (4), a first middle handle (7A), and a second middle handle (7B). The reversing handle (4) has a swinging part (40), a first arm part (41), and a second arm part (42). The swinging part (40) is held in the body (2) in a state that it can rotate about a second rotation axis (AX2) parallel to the second direction (DR2). The first arm portion (41) and the second arm portion (42) protrude from the swing portion (40) in opposite directions along a third direction (DR3) which is perpendicular to the first direction (DR1) and the second direction (DR2), respectively. The first middle handle (7A) is held in the body (2) in a state in which it can rotate about a third rotation axis (AX3) which is parallel to the second direction (DR2). The first middle handle (7A) can contact the first arm portion (41) on the side opposite to the third rotation axis (AX3) in the third direction (DR3), and a first contact portion (71) is provided on the side opposite to the reversing handle (4) in the first direction (DR1). The second middle handle (7B) is held in the body (2) in a state in which it can rotate about a fourth rotation axis (AX4) which is parallel to the second direction (DR2). The second middle handle (7B) is capable of contacting the second arm portion (42) on the side opposite to the fourth rotation axis (AX4) in the third direction (DR3), and has a second contact portion (72) on the side opposite to the reversing handle (4) in the first direction (DR1). The outer handle (6) has a first projection (65) and a second projection (66). The first projection (65) protrudes from the opposing surface (S1) facing the switch (1) toward the first middle handle (7A) in the first direction (DR1), and is capable of contacting the first contact portion (71) of the first middle handle (7A). The second projection (66) protrudes from the opposing surface (S1) toward the second middle handle (7B), and is capable of contacting the second contact portion (72) of the second middle handle (7B).When viewed along the second direction (DR2), the shapes of the first projection (65) and the second projection (66) are different from each other. The first contact surface (651) of the first projection (65) that can contact the first contact portion (71) is inclined with respect to the second direction (DR2), and the second contact surface (661) of the second projection (66) that can contact the second contact portion (72) is inclined with respect to the second direction (DR2).

[0118] In this embodiment, when the outer handle (6) rotates to the first rotation position due to the first projection (65) side of the outer handle (6) being pushed, the first middle handle (7A) is pushed by the first projection (65) and rotates. At this time, the first end (701) of the first middle handle (7A) pushes the first arm (41), causing the reversing handle (4) to rotate, and thus the open / closed state of the movable contact (11) and the fixed contact (10) is switched. Also, when the outer handle (6) rotates to the second rotation position due to the second projection (66) side of the outer handle (6), the second middle handle (7B) is pushed by the second projection (66) and rotates. At this time, the second end (702) of the second middle handle (7B) pushes the second arm (42), causing the reversing handle (4) to rotate, and thus the open / closed state of the movable contact (11) and the fixed contact (10) is switched. Here, since the shapes of the first projection (65) and the second projection (66) are different when viewed along the second direction (DR2), the inclination angle at which the outer handle (6) tilts with respect to the third direction (DR3) in the first rotation position and the inclination angle at which the outer handle (6) tilts with respect to the third direction (DR3) in the second rotation position can be set to desired angles, thereby improving the usability of the switch device (100).

[0119] In the switch device (100) of the second embodiment, in the first embodiment, the first contact surface (651) is inclined such that the amount of protrusion (L1, L2) of the first projection (65) decreases as it moves away from the first rotation axis (AX1). The second contact surface (661) is inclined such that the amount of protrusion (L3, L4) of the second projection (66) decreases as it moves away from the first rotation axis (AX1).

[0120] According to this embodiment, the inclination angle at which the outer handle (6) is inclined with respect to the third direction (DR3) in the first rotation position and the inclination angle at which the outer handle (6) is inclined with respect to the third direction (DR3) in the second rotation position can be set to desired angles, thereby improving the usability of the switch device (100).

[0121] In the switch device (100) of the third embodiment, in the first or second embodiment, the inclination angle (θ1) of the first contact surface (651) with respect to the third direction (DR3) and the inclination angle (θ2) of the second contact surface (661) with respect to the third direction (DR3) are different from each other.

[0122] According to this embodiment, the inclination angle at which the outer handle (6) is inclined with respect to the third direction (DR3) in the first rotation position and the inclination angle at which the outer handle (6) is inclined with respect to the third direction (DR3) in the second rotation position can be set to desired angles, thereby improving the usability of the switch device (100).

[0123] In the switch device (100) of the fourth embodiment, in any of the first to third embodiments, the amount of protrusion (L1) of the first projection (65) near the first rotation axis (AX1) and the amount of protrusion (L3) of the second projection (66) near the first rotation axis (AX1) are different from each other. The amount of protrusion (L2) of the first projection (65) far from the first rotation axis (AX1) and the amount of protrusion (L4) of the second projection (66) far from the first rotation axis (AX1) are different from each other.

[0124] According to this embodiment, the inclination angle at which the outer handle (6) is inclined with respect to the third direction (DR3) in the first rotation position and the inclination angle at which the outer handle (6) is inclined with respect to the third direction (DR3) in the second rotation position can be set to desired angles, thereby improving the usability of the switch device (100).

[0125] In the switch device (100) of the fifth embodiment, in any of the first to fourth embodiments, the outer handle (6) rotates to the first rotation position when the portion on the side of the first projection (65) is pressed against the first rotation axis (AX1), and rotates to the second rotation position when the portion on the side of the second projection (66) is pressed against the first rotation axis (AX1). When the outer handle (6) is rotated to the first rotation position, the outer handle (6) is parallel to the third direction (DR3). When the outer handle (6) is rotated to the second rotation position, the outer handle (6) is inclined with respect to the third direction (DR3).

[0126] According to this embodiment, it becomes easier to determine whether the outer handle (6) is in the first rotation position or the second rotation position based on whether or not the outer handle (6) is parallel to the third direction (DR3), which has the advantage of improving usability.

[0127] In the switch device (100) of the sixth embodiment, in the fifth embodiment, the amount of protrusion (L1) of the first projection (65) near the first rotation axis (AX1) is greater than the amount of protrusion (L3) of the second projection (66) near the first rotation axis (AX1). The amount of protrusion (L2) of the first projection (65) farther from the first rotation axis (AX1) is greater than the amount of protrusion (L4) of the second projection (66) farther from the first rotation axis (AX1).

[0128] According to this embodiment, it becomes easier to determine whether the outer handle (6) is in the first rotation position or the second rotation position based on whether or not the outer handle (6) is parallel to the third direction (DR3), which has the advantage of improving usability.

[0129] In the seventh embodiment of the switch device (100), in any of the first to sixth embodiments, the surface of the first contact portion (71) is a convex curved surface that is convex toward the first projection (65). The surface of the second contact portion (72) is a convex curved surface that is convex toward the second projection (66).

[0130] According to this embodiment, the movement of the first projection (65) and the second projection (66) that contact the first contact portion (71) and the second contact portion (72), respectively, becomes smoother, so that the operation of the outer handle (6) becomes smoother.

[0131] In the eighth embodiment of the switch device (100), in any of the first to seventh embodiments, the end (411) of the first arm portion (41) opposite to the swing portion (40) is located in the third direction (DR3) between the first end (701) that contacts the first arm portion (41) of the first central handle (7A) and the first contact portion (71). The end (421) of the second arm portion (42) opposite to the swing portion (40) is located in the third direction (DR3) between the second end (702) that contacts the second arm portion (42) of the second central handle (7B) and the second contact portion (72).

[0132] According to this embodiment, the possibility of the first end (701) of the first intermediate handle (7A) detaching from the end (411) of the first arm portion (41) can be reduced, and the possibility of the second end (702) of the second intermediate handle (7B) detaching from the end (421) of the second arm portion (42) can be reduced.

[0133] The ninth embodiment of the switch device (100) further comprises, in any of the first to eighth embodiments, a coil spring (49) and a movable contact plate (33) on which a movable contact (11) is provided. The oscillating part (40) has a cylindrical part (44) that protrudes in the first direction (DR1) on the side opposite to the outer handle (6). The first spring end (491) of the coil spring (49) is positioned inside the cylindrical part (44). A part of the movable contact plate (33) is inserted into the second spring end (492) of the coil spring (49). As the position of the second spring end (492) of the coil spring (49) changes in response to the rotation of the reversing handle (4), the open and closed state of the movable contact (11) and the fixed contact (10) provided on the movable contact plate (33) is switched.

[0134] According to this embodiment, it becomes possible to suitably perform the switching operation between the movable contact (11) and the fixed contact (10).

[0135] The wiring device system (A1) of the tenth embodiment comprises a switch device (100) of any of the first to ninth embodiments and a mounting frame (8) that can hold the body (2) of the switch device (100) and attach it to an object (300).

[0136] According to this embodiment, a wiring device system (A1) equipped with a switch device (100) that can improve usability can be realized.

[0137] The external handle (6) of the eleventh embodiment is provided on a switch device (100) of any of the first to ninth embodiments. The external handle (6) has a handle body (60) that is rotatably positioned relative to the device body (2). The handle body (60) has a first projection (65) and a second projection (66) on the opposing surface (S1) that faces the switch (1) in a first direction (DR1).

[0138] This embodiment has the advantage of improving the usability of the switch device (100) equipped with an external handle (6).

[0139] The configurations relating to the second to ninth aspects are not essential to the switch device (100) and can be omitted as appropriate.

[0140] 1 Switch 2 Body 4 Reversing handle 6 Outer handle 7A First middle handle 7B Second middle handle 8 Mounting frame 10 Fixed contact 11 Movable contact 33 Movable contact plate 40 Swiveling part 41 First arm part 42 Second arm part 49 Coil spring 60 Handle body 65 First projection 66 Second projection 71 First contact part 72 Second contact part 100 Switch device 300 Mounting object 411, 421 End part 491 First spring end 492 Second spring end 651 First contact surface 661 Second contact surface 701 First end part 702 Second end part A1 Wiring device system AX1 First rotation axis AX2 Second rotation axis AX3 Third rotation axis AX4 Fourth rotation axis DR1 First direction DR2 Second direction DR3 Third direction L1, L2, L3, L4 Projection amount S1 Opposing surface θ1, θ2 Inclination angle

Claims

1. A switch comprising a body housing fixed contacts and movable contacts, and an outer handle positioned to overlap the switch in a first direction and rotatable about a first rotation axis parallel to a second direction perpendicular to the first direction, wherein the switch comprises a swinging part held in the body so as to be rotatable about a second rotation axis parallel to the second direction, and a reversing handle having a first arm and a second arm that protrude in opposite directions from the swinging part along a third direction perpendicular to the first and second directions, respectively, and a first middle handle held in the body so as to be rotatable about a third rotation axis parallel to the second direction, capable of contacting the first arm on the side opposite to the third rotation axis in the third direction, and having a first contact portion on the side opposite to the reversing handle in the first direction, A switch device comprising: a second middle handle held in the body so as to be rotatable about a fourth rotation axis parallel to the second direction, capable of contacting the second arm portion on the side opposite to the fourth rotation axis in the third direction, and having a second contact portion on the side opposite to the reversing handle in the first direction, wherein the outer handle has a first projection that protrudes toward the first middle handle from the opposing surface facing the switch in the first direction and is capable of contacting the first contact portion of the first middle handle, and a second projection that protrudes toward the second middle handle from the opposing surface and is capable of contacting the second contact portion of the second middle handle, wherein the shapes of the first projection and the second projection are different when viewed along the second direction, the first contact surface of the first projection capable of contacting the first contact portion is inclined with respect to the third direction, and the second contact surface of the second projection capable of contacting the second contact portion is inclined with respect to the third direction.

2. The switch device according to claim 1, wherein the first contact surface is inclined such that the amount of protrusion of the first projection decreases as it moves away from the first rotation axis, and the second contact surface is inclined such that the amount of protrusion of the second projection decreases as it moves away from the first rotation axis.

3. The switch device according to claim 1 or 2, wherein the inclination angle of the first contact surface with respect to the third direction and the inclination angle of the second contact surface with respect to the third direction are different from each other.

4. The switch device according to any one of claims 1 to 3, wherein the amount of protrusion of the portion of the first projection close to the first rotation axis and the amount of protrusion of the portion of the second projection close to the first rotation axis are different from each other, and the amount of protrusion of the portion of the first projection far from the first rotation axis and the amount of protrusion of the portion of the second projection far from the first rotation axis are different from each other.

5. The switch device according to any one of claims 1 to 4, wherein the outer handle rotates to a first rotation position when the portion on the side of the first projection is pressed relative to the first rotation axis, and rotates to a second rotation position when the portion on the side of the second projection is pressed relative to the first rotation axis, and when the outer handle is rotated to the first rotation position, the outer handle is parallel to the third direction, and when the outer handle is rotated to the second rotation position, the outer handle is inclined with respect to the third direction.

6. The switch device according to claim 5, wherein the amount of protrusion of the portion of the first projection closer to the first rotation axis is greater than the amount of protrusion of the portion of the second projection closer to the first rotation axis, and the amount of protrusion of the portion of the first projection further from the first rotation axis is greater than the amount of protrusion of the portion of the second projection further from the first rotation axis.

7. The switch device according to any one of claims 1 to 6, wherein the surface of the first contact portion is a convex curved surface that is convex toward the first projection, and the surface of the second contact portion is a convex curved surface that is convex toward the second projection.

8. The switch device according to any one of claims 1 to 7, wherein the end of the first arm portion opposite to the swinging portion is located in the third direction between the first end of the first central handle that contacts the first arm portion and the first contact portion, and the end of the second arm portion opposite to the swinging portion is located in the third direction between the second end of the second central handle that contacts the second arm portion and the second contact portion.

9. The switch device according to any one of claims 1 to 8, further comprising a coil spring and a movable contact plate on which the movable contact is provided, wherein the oscillating portion has a cylindrical portion that protrudes in the first direction opposite to the outer handle, the first spring end of the coil spring is disposed inside the cylindrical portion, a part of the movable contact plate is inserted into the second spring end of the coil spring, and the position of the second spring end of the coil spring changes in accordance with the rotation of the reversing handle, thereby switching the open / closed state of the movable contact and the fixed contact provided on the movable contact plate.

10. A wiring device system comprising: a switch device according to any one of claims 1 to 9; and a mounting frame capable of holding the body of the switch device and attaching it to an object to be mounted.

11. An external handle for a switch device according to any one of claims 1 to 9, comprising a handle body positioned so as to be rotatable with respect to the device body, wherein the handle body has a first projection and a second projection on the opposing surface facing the switch in the first direction.

Images