JP2012123923A - Switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To commonalize switches disposed in a symmetric positional relationship.SOLUTION: A switch comprises a switch base 10, a first contact part 21 and a second contact part 22 provided on the switch base 10, and an operation knob 30 for performing a changeover operation of these contact parts. On one of the switch base 10 and the operation knob 30, there is provided a rotational support shaft 122 rotationally supporting the operation knob 30 on the switch base 10. Seeing from a planar direction of the switch base 10, a distance between the center of the first contact part 21 and the center of the second contact part 22 is set to be equal to a distance between the center of the second contact part 22 and the center of the rotational support shaft 122. The operation knob 30 includes a contact connection part 32 to which one of the first contact part 21 and the second contact part 22 is connected, and does not contact to one of the contact parts in a rotation range for performing the changeover operation of the other of the contact parts by the contact connection part 32.

Description

  The present invention relates to a switch suitably used for a device installed in a symmetrical positional relationship.

  2. Description of the Related Art There is known a power seat device that adjusts the backrest and seating portion of a vehicle seat to an arbitrary angle and position. The switch used in this type of power seat device is usually provided on the right side of the seat in the right seat and on the left side of the seat in the left seat. In this case, in order to make the operability of the right and left seat switches common, the operation knobs and the like must be arranged symmetrically. In other words, two types of parts, such as those for the right seat and those for the left seat, are necessary for the parts and the like that are displaced from the central axis of the switch body.

  Japanese Patent Application Laid-Open No. 2004-151561 discloses a switch used in this type of power seat device, in which a main body case of a left seat (left handle) switch and a right seat (right handle) switch is shared. ing. In such a configuration, the main body is configured so that a member referred to as a small case with which the switch element (contact point) can be engaged can be selectively disposed at any one of two positions (symmetrical) with respect to the central axis of the main body case. A case is formed. According to this, a switch that can be used for the left seat is obtained when the small case is arranged in one position, and a switch that can be used for the right seat is obtained when arranged in the other position. It is done.

Japanese Utility Model Publication 2-69436

  However, the configuration described in Patent Document 1 can only make the main body case of the switch for the left seat and the switch for the right seat, and cannot share all the other members (about that point) There is no specific disclosure). In addition, it is necessary to add a new member called a small case, which is insufficient as a cost reduction effect.

  In view of the above circumstances, the problem to be solved by the present invention is to share switches installed in a symmetrical positional relationship.

  In order to solve the above problems, a switch according to the present invention includes a switch base, a first contact portion and a second contact portion provided on the switch base, and an operation knob for performing a switching operation of the contact portion. One of the switch base and the operation knob is provided with a rotation support shaft that rotatably supports the operation knob on the switch base, and when viewed in a planar direction of the switch base, the first The distance between the center of the contact portion and the center of the rotation support shaft is set equal to the distance between the center of the second contact portion and the center of the rotation support shaft, and the operation knob includes the first contact portion and the center of the rotation support shaft. It has a contact connecting part to which one of the second contact parts is connected, and is in non-contact with the other contact part within a rotation range in which the switching operation of one contact part is performed by this contact connecting part. And effect.

  The switch according to the present invention uses one of two contact portions (a first contact portion and a second contact portion). Since the first contact portion and the second contact portion are equidistant from the rotation support shaft that rotatably supports the operation knob, either contact portion can be used. In addition, since the contact portion that is not used (the other contact portion) is not in contact with the operation knob within the rotation range of the operation knob, it may interfere with the operation of the contact portion that is used (one contact portion). There is no. That is, the switch according to the present invention uses the first contact portion in one (right side) device and the other (left side) device with respect to a device installed in a symmetrical positional relationship, such as a power seat device for a vehicle seat. In the apparatus, it is possible to switch the contact portion to be used, such as using the second contact portion. That is, the switch can be applied to both apparatuses having a symmetrical positional relationship.

  Further, when viewed in the planar direction of the switch base, the center of the first contact portion and the center of the second contact portion may be set point-symmetrically with respect to the center of the rotation support shaft. .

  When the center of the first contact portion and the center of the second contact portion are point-symmetric with respect to the center of the rotation support shaft, the center of the first contact portion, the center of the second contact portion, and the rotation support The center of the axis is on a straight line. Therefore, the other contact portion that is not used can be covered with the operation knob. In this way, the appearance is good, and the other contact portion does not obstruct the mounting of the switch.

  Each of the first contact portion and the second contact portion is provided with an operation shaft protruding toward the operation knob, and the contact connection portion of the operation knob has an operation shaft of the first contact portion and Any one of the operation shafts of the second contact portion may be connected, and the operation knob may be formed with a space that keeps a non-contact state with the other operation shaft within the rotation range.

  Thus, if the operation shaft is provided in advance in the first contact portion and the second contact portion, the operation knob can be easily assembled to the contact portion to be used. In this case, in the operation knob, a space for allowing the operation shaft to escape is formed within the rotation range of the operation knob in order to cover the operation shaft of the contact portion that is not used.

  According to the present invention, it is possible to selectively use either the first contact portion or the second contact portion that is provided in advance in the switch base, so that the switches that are installed in a symmetrical positional relationship can be shared. Can be achieved.

It is the top view of the switch concerning 1st embodiment of this invention, Comprising: It is the figure which showed the aspect by which a 1st contact part is used as a contact part. It is the top view of the switch concerning 1st embodiment of this invention, Comprising: It is the figure which showed the aspect by which a 2nd contact part is used as a contact part. It is the sectional view on the AA line in FIG. 1 (hatching is abbreviate | omitted). FIG. 2 is a sectional view taken along line BB in FIG. 1 (hatching is omitted). It is CC sectional view taken on the line in FIG. 1 (hatching is abbreviate | omitted). It is the DD sectional view taken on the line in FIG. 1 (hatching is abbreviate | omitted). FIG. 7 is a schematic diagram for explaining the movement of the operation shaft and the like when the operation knob is rotated in the configuration shown in FIG. 1, FIG. 7A is a state in which the operation knob is in its original position, FIG. FIG. 7B shows a state in which the operation knob is turned leftward, and FIG. 7C shows a state in which the operation knob is turned rightward. It is the top view of the switch concerning 2nd embodiment of this invention, Comprising: It is the figure which showed the aspect by which a 1st contact part is used as a contact part. It is the top view of the switch concerning 2nd embodiment of this invention, Comprising: It is the figure which showed the aspect by which a 2nd contact part is used as a contact part. It is sectional drawing (hatching is abbreviate | omitted) of the modification (modification of 1st embodiment) in which the operation knob itself was provided with the rotation support shaft.

  Hereinafter, a switch according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the axial direction simply refers to the longitudinal direction of the switch base (X-axis direction in FIGS. 1 and 2), and simply the width direction refers to the short direction of the switch base (Y in FIGS. 1 and 2). (Axial direction). The vertical direction simply refers to the direction (vertical direction in FIGS. 3 to 6) orthogonal to the axial direction and the width direction (the side on which the operation knob is arranged is up).

  The switch 1 concerning 1st embodiment of this invention is a switch applied to the power seat apparatus of a vehicle seat. The switch 1 is applicable to both the power seat device for the left seat (attached to the left side surface of the left seat) and the power seat device for the right seat (attached to the right side surface of the right seat). A reclining switch unit 2 (switch 1 according to the embodiment of the present invention) used for angle adjustment (reclining operation) of the backrest and a slide switch unit 90 that performs a sliding operation and an angle adjustment of the seating portion of the seat are provided.

  The reclining switch unit 2 includes a switch base 10 that is common to the slide switch unit 90, a first contact part 21 and a second contact part 22 provided on the switch base 10, and an operation knob 30 that performs a switching operation of the contact part. .

  The switch base 10 is a rectangular parallelepiped box-shaped member in which a space of a predetermined size is formed, and as shown in each cross-sectional view, a base plate 11, a main body portion 12 covering the base plate 11, Have A substrate 111 is disposed on the base plate 11. A first contact portion 21 and a second contact portion 22 are disposed on the substrate 111. An operation knob 30 is disposed above the main body 12.

  Two through holes 121 are formed in the upper wall of the main body 12, and the operation shafts 214 and 224 of the first contact portion 21 and the second contact portion 22, which will be described in detail later, pass through the through holes 121 and the main body portion. 12 protrudes upward from the upper wall. The through hole 121 is formed in a size that matches the movable range of the operation shafts 214 and 224. Therefore, the gap between the through hole 121 and the operation shafts 214 and 224 is covered with a cover (not shown) so that dust and the like do not enter the switch base 10. This cover is made of a flexible material that does not hinder the movement of the operation shafts 214 and 224.

  Further, a rotation support shaft 122 is formed to protrude upward from the upper surface of the main body 12 of the switch base 10. In the present embodiment, the rotation support shaft 122 is formed so that its center is located on a straight line L that bisects the width direction of the switch base 10.

  The first contact portion 21 and the second contact portion 22 have the same configuration except for their arrangement positions. The first contact portion 21 and the second contact portion 22 include fixed contacts 211 and 221 fixed on the substrate 111 and movable contacts 212 and 222 provided so as to be swingable with respect to the fixed contacts 211 and 221. Have. The contact operation convex portions 213 and 223 are in contact with the movable contact points 212 and 222, and the contact operation convex portions 213 and 223 move to the left side in FIGS. Inclination, the left side of the fixed contacts 211 and 221 and the left side of the movable contacts 212 and 222 come into contact with each other and the contact is turned on. Further, when the contact operation convex portions 213 and 223 are moved to the right side in FIGS. 3 and 4, the movable contacts 212 and 222 are tilted to the right side, and the right side of the fixed contacts 211 and 221 and the right side of the movable contacts 212 and 222 are in contact with each other. The contact is turned on. The first contact portion 21 and the second contact portion 22 have operation shafts 214 and 224 extending upward. Contact operation convex portions 213 and 223 are fixed to lower ends of the operation shafts 214 and 224. Therefore, the contact operation convex portions 213 and 223 move together with the operation shafts 214 and 224. That is, by operating the operation shafts 214 and 224, the switching of the contacts (switching of the three states; the left contact is in the on state / the right contact is in the on state / off state) is possible.

  In the power seat device equipped with the switch 1 according to the present embodiment, the backrest tilts backward when one of the left contact and the right contact is turned on, and the back rest when the other is turned on. Is set to stand forward.

  Further, when viewed in the plane (XY plane) direction of the switch base 10, the center P1 of the first contact portion 21 and the center P2 of the second contact portion 22 are the center P3 of the rotation support shaft 122 (the rotation support shaft 122). They are set to be symmetrical with respect to each other about the center of symmetry of the axis line and the XY plane. The “center of the contact portion” means a point equidistant from the left side of the fixed contacts 211 and 221 and the right side of the fixed contacts 211 and 221 in the XY plane (hereinafter the same). In the present embodiment, the centers P1 and P2 are located on the axes of the operation shafts 214 and 224. The center P1 of the first contact portion 21 and the center P2 of the second contact portion 22 are also symmetrical with respect to a straight line L that bisects the switch base 10 in the width direction. Therefore, the distance M1 between the center P1 of the first contact portion 21 and the center P3 of the rotation support shaft 122 is equal to the distance M2 between the center P2 of the second contact portion 22 and the center P3 of the rotation support shaft 122. The center P1 of the one contact portion 21, the center P2 of the second contact portion 22, and the center P3 of the rotation support shaft 122 are located on a straight line. In the present embodiment, the straight line connecting the center P1 of the first contact portion 21, the center P2 of the second contact portion 22, and the center P3 of the rotation support shaft 122 is a straight line that bisects the switch base 10 in the width direction. Orthogonal to L.

  The operation knob 30 has a rotation support hole 31 formed at the center thereof. When the rotation support shaft 122 formed on the switch base 10 is engaged with the rotation support hole 31, the operation knob 30 is supported to be rotatable about the axis of the rotation support shaft 122. . That is, the operation knob 30 is rotatably supported at the center position in the width direction of the switch base 10.

  Further, the operation knob 30 is formed with a contact connecting portion 32 on one side of the rotation support hole 31. The contact connecting portion 32 is connected to one of the operation shaft 214 of the first contact portion 21 and the operation shaft 224 of the second contact portion 22 (in the configuration shown in FIG. 1, the operation shaft of the first contact portion 21 is connected). 214, and is connected to the operation shaft 224 of the second contact portion 22 in the configuration shown in FIG. The contact connecting portion 32 in the present embodiment is formed in a groove shape having a width slightly larger than the diameter of the operation shafts 214 and 224. When the operation knob 30 is rotated, the operation shafts 214 and 224 are moved by being pushed by the side walls constituting the grooves. Thereby, a contact is switched. Since the operation shafts 214 and 224 are inserted through the through holes 121, the size of the through holes 121 is within the range (the range in which the operation shafts 214 and 224 are restricted from moving by the inner surface of the through holes 121). It is possible to move with. That is, the rotation range of the operation knob 30 is regulated by the size of the through hole 121, and the contact point can be switched within the rotation range.

  Further, the operation knob 30 is provided with a shaft escape space 33 on the other side of the rotation support hole 31 (opposite side of the contact connecting portion 32 sandwiching the rotation support hole 31). Inside the shaft escape space 33, the other of the operation shaft 214 of the first contact portion 21 and the operation shaft 214 of the second contact portion 22 (the operation shaft that is not the operation shaft connected to the contact connecting portion 32; shown in FIG. In the configuration shown, the operation shaft 224 of the second contact portion 22 is located, and in the configuration shown in FIG. 2, the operation shaft 214) of the first contact portion 21 is located. As shown in FIG. 7, the shaft escape space 33 is formed in such a size that the other 224 (214) of the operation shaft does not contact the operation knob 30 within the rotation range of the operation knob 30. Specifically, the distance (the distance indicated by F in FIG. 4) between the center axis of the other operation shaft 224 (214) and the inner surface of the operation knob 30 is the center axis of the operation shaft one 214 (224) and the through hole 121. It is formed larger than the distance from the inner surface (the distance indicated by E in FIG. 3). Further, since the operation knob 30 rotates about the rotation support shaft 122, the shaft escape space 33 also moves in an arc shape (see FIG. 7). Accordingly, the shaft escape space 33 is larger by a predetermined amount than the diameter of the other operation shaft 224 (214) so that the other surface 224 (214) of the operation shaft does not contact a surface facing the shaft escape space 33 in the width direction. It is formed to have a width. In the present embodiment, the two wall portions 331 that construct the shaft escape space 33 also function as reinforcing ribs that reinforce the operation knob 30. In other words, when a reinforcing rib for reinforcing the operation knob 30 is provided, the reinforcing rib may be designed so as not to contact the other 224 (214) of the operation shaft within the rotation range of the operation knob 30.

  If the shaft relief space 33 is formed in such a size, the other operation shaft 224 (214) does not contact the inner surface of the operation knob 30 within the rotation range of the operation knob 30. Rotation operation of the operation knob 30 is not hindered by the other 224 (214). In addition, the other 224 (214) of the operation shaft does not operate, that is, the other contact portion that is not used does not perform switching operation (ON / OFF operation).

  As described above, in the switch 1, the center P <b> 1 of the first contact portion 21 and the center P <b> 2 of the second contact portion 22 are set point-symmetrically with respect to the center P <b> 3 of the rotation support shaft 122. Since the distance M1 between the center P1 of the portion 21 and the center P3 of the rotation support shaft 122 is equal to the distance M2 between the center P2 of the second contact portion 22 and the center P3 of the rotation support shaft 122, the operation knob The 30 contact connecting portions 32 can be connected to the first contact portion 21 (the operation shaft 214), or can be connected to the second contact portion 22 (the operation shaft 224). In any case, since the operation knob 30 is rotatably supported by the rotation support shaft 122, the rotation center is the same. Thus, the contact part to be used can be arbitrarily selected by changing the mounting direction of the operation knob 30 among the two contact points provided in advance. Therefore, the switch 1 according to the present embodiment can be applied to both the power seat device for the left seat and the power seat device for the right seat that are in a symmetrical positional relationship by changing the mounting direction of the operation knob 30. . That is, the switch 1 having the configuration using the first contact portion 21 is applied to one power seat device, and the second contact portion 22 is used to the other power seat device symmetrical to the one power seat device. Switch 1 can be applied. In this case, in either power seat device, the upper part of the operation knob 30 is set to be the movable side end. That is, in either power seat device, when the contact switching operation is performed, the operation knob 30 is rotated (swinged) by holding the upper portion of the operation knob 30. Thus, according to this embodiment, the common operation direction (operability) of the operation knob 30 is also achieved.

  In the present embodiment, the operation knob 30 is provided with a shaft escape space 33 for maintaining a non-contact state with the other operation shaft 224 (214) that is not used. If the shaft escape space 33 is formed in the operation knob 30 in this manner, the contact portion that is not used (the through hole 121 on the contact portion side that is not used) can be covered with the operation knob 30, which is excellent in design. Further, the other operation shaft 224 (214) which is not used does not obstruct the mounting of the switch 1.

  Hereinafter, the slide switch unit 90 included in the switch 1 according to the present embodiment will be briefly described. As shown in FIGS. 1, 2, and 6, the slide switch portion 90 has three contact portions. The first contact portion 91 closest to the reclining switch portion 2 and the farthest third contact portion 93 are switched by moving the operation shafts 914 and 934 to draw an arc in the width direction. On the other hand, the second contact portion 92 located between the first contact portion 91 and the third contact portion 93 is switched by moving the operation shaft 924 in the axial direction. The operation knob 94 is attached so as to cover the first to third contact portions 91, 92, 93.

  In such a configuration, when the entire operation knob 94 is slid in the axial direction, the second contact portion 92 (operation shaft 924) slides in the axial direction, and the contact of the second contact portion 92 is switched. Thereby, the seating portion of the vehicle seat slides in the front-rear direction. On the other hand, when the operation knob 94 is rotated about the operation shaft 924 of the second contact portion 92, the first contact portion 91 and the third contact portion 93 slide in the width direction, and the first contact portion 91 and the first contact portion The contacts of the three contact portions 93 are switched. Thereby, the inclination angle of the seating portion of the vehicle seat changes.

  The centers of the first to third contact portions 91, 92, 93 (centers of the operation shafts 914, 924, 934) of the slide switch portion 90 are formed on a straight line L that bisects the switch base 10 in the width direction. That is, the center P3 of the rotation support shaft 122 of the reclining switch unit 2 is located on the same straight line L. Further, the operation direction of the operation knob 94 (the movement path of each operation shaft 914, 924, 934) is line symmetric with respect to the straight line L as an axis of symmetry. Therefore, the slide switch unit 90 can be applied as it is to both the left seat power seat device and the right seat power seat device which are in a symmetrical positional relationship. Therefore, if it sees as the switch 1 whole, it becomes a structure applicable to both the power seat apparatus which has a symmetrical positional relationship only by switching the direction of the operation knob 30 of the reclining switch part 2. FIG. In this embodiment, the slide switch unit 90 is on the front side of the seat and the reclining switch unit 2 is on the rear side of the seat, regardless of whether the power seat device is for the left seat or the right seat. Located in. Therefore, the common operation direction (operability) of both switches (the slide switch unit 90 and the reclining switch unit 2) can be achieved.

  Hereinafter, a second embodiment of the present invention will be described. Note that the following description will focus on differences from the first embodiment.

  The switch 2 according to the second embodiment of the present invention shown in FIGS. 8 and 9 is different from the switch 1 according to the first embodiment in the arrangement positions of the first contact portion 51 and the second contact portion 52. . Specifically, the center Q1 of the first contact portion 51 and the center Q2 of the second contact portion 52 are not point-symmetric with respect to the center Q3 of the rotation support shaft 422. However, also in this embodiment, the distance between the center Q1 of the first contact portion 51 and the center Q3 of the rotation support shaft 422 is the same as the distance between the center Q2 of the second contact portion 52 and the center Q3 of the rotation support shaft 422. It is. The center Q1 of the first contact portion 51 and the center Q2 of the second contact portion 52 are line symmetric with respect to a straight line L that bisects the switch base 40 in the width direction.

  The operation knob 60 is provided with a rotation support hole 61 and a contact connecting portion 62. The rotation support shaft 422 is engaged with the rotation support hole 61. Accordingly, the operation knob 60 is rotatably supported by the rotation support shaft 422. The contact connecting portion 62 is connected to one of the operation shaft 514 of the first contact portion 51 and the operation shaft 524 of the second contact portion 52. When the operation shaft 514 of the first contact portion 51 is connected to the contact connecting portion 62, the movable side end portion of the operation knob 60 faces obliquely upward as shown in FIG. On the other hand, when the operation shaft 524 of the second contact portion 52 is connected to the contact connecting portion 62, the movable side end portion of the operation knob 60 faces obliquely downward as shown in FIG.

  As described above, the switch 2 according to the second embodiment, like the switch 1 according to the first embodiment, changes the mounting direction of the operation knob 60 among the two contact points provided in advance. The contact part to be used can be arbitrarily selected. That is, as in the switch 1 according to the first embodiment, the center Q1 of the first contact portion 51 and the center Q2 of the second contact portion 52 are symmetric with respect to the center Q3 of the rotation support shaft 422. Even if they are not symmetrical, the distance between the center Q1 of the first contact portion 51 and the center Q3 of the rotation support shaft 422 is the same as the distance between the center Q2 of the second contact portion 52 and the center Q3 of the rotation support shaft 422. If so, a switch applicable to both the power seat device for the left seat and the power seat device for the right seat can be configured.

  Further, according to the second embodiment, the movable side end portion of the operation knob 60 can be positioned so as to face the oblique direction from the rotation center, so that the range of design is widened. That is, in consideration of the operability of the reclining operation, the operation knob 60 can be installed obliquely. However, in the point that the unused contact part (the operation axis) can be covered with the operation knob (excellent in design), and the unused contact part does not interfere with the switch mounting. One embodiment is advantageous.

  In addition, the slide switch part which the switch concerning 2nd embodiment has is the same structure as the slide switch part 90 already demonstrated (it abbreviate | omits in FIG. 8 and FIG. 9). The center of each contact portion constituting the slide switch portion 90 is located on the straight line L together with the center Q3 of the rotation support shaft 422.

  As mentioned above, although embodiment of this invention was described in detail, this invention is not limited to the said embodiment at all, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, it has been described that the switches 1 and 2 according to the above embodiment are applied to a power seat device for a vehicle seat, but can also be applied to switches of other devices installed in a symmetrical positional relationship. It is.

  Moreover, although the said embodiment demonstrated that the rotation support shaft 122 (422) which supports the operation knob 30 (60) rotatably was provided in the switch base 10 (40), it provided in the operation knob. It may be done. That is, for example, as shown in FIG. 10, a rotation support shaft 71 protruding downward is provided on the operation knob 70 itself, and the rotation support shaft 71 is engaged with a rotation support hole 81 formed in the switch base 80. The entire operation knob 70 may be rotatably supported by the switch base 80. It is also possible to form an operation shaft for operating the movable contact on the operation knob.

  Moreover, in the said embodiment, the contact connection part 32 (62) provided in the operation knob 30 (60) is formed in the groove | channel shape of a width a little larger than the diameter of the operation shafts 214 and 224 (514, 524). However, as long as the operation shaft can be moved by turning the operation knob, other configurations can be employed. For example, it is good also as a structure by which a contact connection part is made into a cylindrical shape and an operating shaft is connected with this cylindrical part by press injection. Note that the “connection” in the present invention includes all configurations in which the operation shaft moves in the rotation direction of the operation knob (configuration in which the operation knob acts on the operation shaft).

  Moreover, the structure of the slide switch part 90 which the switches 1 and 2 concerning the said embodiment have is an example. A switch whose operation direction (movement path of each operation axis) of the operation knob is axisymmetric with respect to the straight line L as a symmetry axis, and can be applied to both the left seat power seat device and the right seat power seat device. If so, the configuration can be appropriately changed.

DESCRIPTION OF SYMBOLS 1 Switch 10 Switch base 122 Rotation support shaft 21 First contact part 214 Operation shaft 224 Operation shaft 30 Operation knob 32 Contact connection part 33 Axis relief space

Claims (3)

A switch base, a first contact portion and a second contact portion provided on the switch base, and an operation knob for switching the contact portion;
One of the switch base and the operation knob is provided with a rotation support shaft that rotatably supports the operation knob on the switch base,
The distance between the center of the first contact portion and the center of the rotation support shaft is set equal to the distance between the center of the second contact portion and the center of the rotation support shaft when viewed in the planar direction of the switch base. ,
The operation knob has a contact connecting portion to which one of the first contact portion and the second contact portion is connected, and within a rotation range in which one contact portion is switched by the contact connecting portion. A switch characterized by being non-contact with the other contact part.   The center of the first contact portion and the center of the second contact portion are set point-symmetrically with respect to the center of the rotation support shaft when viewed in the planar direction of the switch base. The switch according to claim 1. Each of the first contact portion and the second contact portion is provided with an operation shaft protruding toward the operation knob side,
One of the operation shaft of the first contact portion and the operation shaft of the second contact portion is connected to the contact connecting portion of the operation knob,
The switch according to claim 2, wherein the operation knob is formed with a space that maintains a non-contact state with the other operation shaft within the rotation range.

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