JP6418909B2 - Switch device - Google Patents

Description

  The present invention relates to a switch device.

  Patent Document 1 discloses a switch device including both a rotary knob and a push knob.

Japanese Patent No. 5359828

  6A and 6B are diagrams for explaining a switch device 100 according to a conventional example disclosed in Patent Document 1, FIG. 6A is a cross-sectional view, and FIG. 6B is a perspective view of a holding member 101 and a dial holder 104. FIG.

As illustrated in FIG. 6, the switch device 100 includes a holding member 101 that is fixed to the back surface of the case 150.
A ring-shaped dial 105 that is operated by an operator and rotates about the central axis X is attached to the cylindrical wall portion 102 of the holding member 101 via a dial holder 104. A push knob 106 is provided so as to be movable back and forth in the central axis X direction.
The dial 105 and the push knob 106 are arranged so as to penetrate a circular opening 151 of a case 150 provided around the driver's seat in the vehicle interior from the back side to the vehicle interior side, and can be operated by a passenger in the vehicle interior. Placed in position.

  Here, the switch device 100 is a holding member 101 fixed to the back surface of the case 150 so as to receive stress when the dial 105 or the push knob 106 is operated. The rigid strength of the holding member 101 is increased by forming a bottomed cylindrical shape in which one end of the portion 102 is closed by the bottom wall portion 103.

  In the switch device 100 having such a configuration, since the dial 105 is rotatably provided around the central axis X using a plurality of parts, the cost for creating the switch device increases as much as the assembly work of the switch device 100 is increased. End up.

  Therefore, there is a demand for a switch device with fewer assembly steps.

The present invention includes a rotary knob that is extrapolated to a support portion and is rotatably supported, and a case having a receiving hole that can receive the rotary knob, and operates according to an angular position around the rotary shaft of the rotary knob. In the configured switch device,
The case is provided with a peripheral wall portion that surrounds the outer periphery of the rotary knob accommodated in the accommodation hole, and a connection wall that connects the peripheral wall portion and the support portion inside the peripheral wall portion, and the support portion is formed integrally with the case ,
On the inner periphery of the cylindrical wall portion of the rotary knob that is externally inserted into the support portion, there is provided a moderation groove in which a plunger that can be projected and retracted from the outer periphery of the support portion is elastically engaged,
A switch device having a configuration in which an index that is detected by a sensor that detects an angular position around the rotation axis of the rotary knob is provided at an end of the cylindrical wall on the connection wall side .

  By integrally forming the support part and the case, the rigidity strength of the support part is improved, and the rotary knob is supported by the case only through the support part, so the number of parts necessary for supporting the rotary knob is reduced. It is possible to reduce the cost of creating a switch device by the number of parts reduced.

It is a disassembled perspective view of the switch apparatus concerning embodiment. It is the disassembled perspective view which showed the principal part of the switch apparatus concerning embodiment by the cross section. It is sectional drawing of the switch apparatus concerning embodiment. It is sectional drawing of the switch apparatus concerning embodiment. It is sectional drawing of the switch apparatus concerning embodiment. It is a figure explaining the switch apparatus concerning a prior art example.

Embodiments of the present invention will be described below.
FIG. 1 is an exploded perspective view of the switch device 1, and FIG. 2 is an exploded perspective view showing the push knob 2, the rotary knob 3, and the case 4 of the switch device 1 in cross section.
3 is a cross-sectional view of the switch device 1. FIG. 3A is a cross-sectional view of the entire switch device 1 when the case 4 is cut along a plane A in FIG. 1, and FIG. FIG. 3 is a cross-sectional view of the entire switch device 1 when the case 4 is cut along a plane B.
4A and 4B are cross-sectional views of the switch device 1. FIG. 4A is a cross-sectional view taken along line AA in FIG. 3B, and FIG. 4B is a cross-sectional view taken along line BB in FIG. (C) is CC sectional drawing in (B) of FIG.
FIG. 5 is a cross-sectional view of the switch device 1 and is a cross-sectional view taken along the line AA in FIG.

As shown in FIG. 1, the switch device 1 has a push knob 2, a rotary knob 3, a case 4, and a printed circuit board 5, and detects the operation of the push knob 2 on the printed circuit board 5. And a light sensor (LED) 53 for illuminating the operation unit 22 of the push knob 2 are provided.
Further, the switch device 1 has a moderation mechanism 6 (see FIGS. 3 and 4B) for imparting a moderation feeling to the operation of the rotary knob 3. In FIG. A spring Sp and plungers 61, 61 which are part of the element are shown.

In the switch device 1, a cylindrical support portion 48 that supports the push knob 2 and the rotary knob 3 is formed integrally with the case 4 that is fitted into a panel in which switches in the vehicle compartment are arranged.
As shown in FIG. 2 and FIG. 3A, in the case 4, the knob housing portion 42 having a circular shape in plan view is below the plate-like base portion 41 on the printed circuit board 5 side (hereinafter referred to as the lower portion). A support portion 48 is provided at the center of the knob housing portion 42.
The knob housing part 42 is composed of an annular peripheral wall part 43 and a bottom wall part 44 that closes an end part of the peripheral wall part 43 on the printed circuit board 5 side.
As shown in FIG. 3A, the inner diameter D1 of the peripheral wall portion 43 is reduced in two steps in the direction away from the base portion 41. The peripheral wall portion 43 includes a large-diameter portion 431 on the base portion 41 side, The small-diameter portion 432 on the printed circuit board 5 side, and a ring-shaped wall portion 433 connecting the large-diameter portion 431 and the small-diameter portion 432 are configured.

As shown in FIG. 4C, the small-diameter portion 432 and the bottom wall portion 44 of the knob housing portion 42 and a part of the support portion 48 include a push switch 51 on the printed circuit board 5, an optical sensor 52, and The cylindrical support portion 48 is cut out to avoid interference with the light source 53, and the cylindrical support portion 48 is connected to the bottom wall portion 44 via a portion other than the cutout portion.
As shown in FIG. 3A, the support portion 48 extends in a direction away from the printed circuit board 5 (hereinafter referred to as “upper”), and an upper end 48 a of the support portion 48 is a base portion 41 of the case 4. It is arranged at a position spaced a predetermined height h1 from above.

  The support portion 48 is formed with the same outer diameter D4 over the entire length in the longitudinal direction (axial direction of the central axis X), and the base portion 21 of the push knob 2 is inserted into the support portion 48 and attached. In addition, the inner wall 33 of the rotary knob 3 is attached by extrapolation.

[Push knob 2]
As shown in FIG. 3A, the push knob 2 has a bottomed cylindrical shape in which one end of a cylindrical base portion 21 is sealed with a disk-shaped operation portion 22.
The operation portion 22 has an outer diameter D2 larger than the base portion 21, and a peripheral wall portion 23 extending in the same direction as the base portion 21 is provided on the outer peripheral edge of the operation portion 22 in the circumferential direction around the central axis X. The rigidity of the operation unit 22 is increased.

As shown in FIG. 1, a guide portion 211 is provided on the outer periphery of the base portion 21 so as to protrude outward in the radial direction. The guide portions 211 are provided so as to extend linearly in the direction of the central axis X, and three guide portions 211 are provided at intervals of 90 degrees in the circumferential direction around the central axis X on the outer periphery of the base portion 21 (see FIG. 4 (A)).
As shown in FIGS. 1 and 2, in the embodiment, a notch 212 for avoiding interference with the spring Sp of the moderation mechanism 6 and the plunger 61 described later is provided in the lower part of the base portion 21 on the printed circuit board 5 side. Each of the guide portions 211 is provided in a range from the operation portion 22 on one end side of the base portion 21 to the notch 212 on the other end side.

The push knob 2 is assembled to the case 4 by inserting the cylindrical base portion 21 into the cylindrical support portion 48 of the case 4. At this time, the guide portion 211 on the outer periphery of the base portion 21 is attached to the support portion. It engages with a guide groove 481 provided on the inner periphery of 48 (see FIG. 4A).
Therefore, the push knob 2 supported by the support portion 48 of the case 4 has the center axis X of the center axis X by the guide portion 211 engaged with the guide groove 481 in a state where movement in the circumferential direction around the center axis X is restricted. It is provided so as to be movable in the axial direction.

Further, as shown in FIG. 5, the base 21 of the push knob 2 is inserted into the cylindrical support 48 of the case 4, and the push knob 2 is assembled to the case 4. The engaging claw 48b protruding to the side engages with the engaging groove 21a provided in the base 21 of the push knob 2, so that the push knob 2 is prevented from falling off from the support portion 48.
In the embodiment, the engagement groove 21a is formed with a predetermined length h2 in the central axis X direction, and the movement range of the push knob 2 in the central axis X direction is engaged with the engagement groove 21a. Defined by the engaging claws 48b.

  As shown in FIG. 4A, a pressing portion 212 is provided on the inner periphery of the base portion 21 so as to protrude radially inward. The pressing portion 212 is located on the inner diameter side of the guide portion 211 located between the guide portions 211 and 211 located on the diameter line Ln, and is provided so as to protrude in a direction orthogonal to the diameter line Ln.

The pressing portion 212 is placed on the push switch 51 on the printed circuit board 5 when the push knob 2 is supported by the support portion 48 of the case 4 (see FIG. 3A). When the push knob 2 is pressed and moved downward on the printed circuit board 5 side, the pressing portion 212 depresses the push switch 51 to turn it on.
When the pressing operation to the push knob 2 is finished, the push knob 2 moves upward in the direction away from the printed circuit board 5 by the urging force of the urging member (not shown) on the push switch 51 side. It returns to the position.

As shown in FIG. 3A, the rotary knob 3 that is attached by being extrapolated to the support portion 48 of the case 4 includes a cylindrical inner wall portion 33 that is extrapolated to the support portion 48 and supported rotatably. The inner wall 33 is formed integrally with a cylindrical outer wall 34 surrounding the outer periphery of the inner wall 33 at a predetermined interval.
The inner wall portion 33 extends downward from the intermediate position in the longitudinal direction of the outer wall portion 34 toward the printed circuit board 5, and a portion where the inner wall portion 33 is not provided on the inner diameter side of the outer wall portion 34 is defined by the operator as the rotary knob 3. The operation unit 341 is gripped when operating.

In the outer wall portion 34, the radial thickness W1 of the central axis X of the operation portion 341 (see FIG. 3B) is thicker than the thickness of the portion 342 where the inner wall portion 33 is not located on the inner diameter side.
The operation portion 341 is formed with an outer diameter D3 that is slightly larger than the outer diameter D2 of the operation portion 22 of the push knob 2 described above. Inside the operation portion 341, the push knob 2 is in the axial direction of the central axis X. It is arranged to be movable.

The outer wall 34 surrounding the inner wall 33 at a predetermined interval has an end 34a on the printed circuit board 5 side in contact with the wall 433 of the case 4 from the axial direction of the central axis X, and the rotary knob 3 has a wall portion. The outer wall 34 is placed on the case 433 and is installed in the case 4.
In the embodiment, when the rotary knob 3 supported by the support portion 48 on the case 4 side rotates around the central axis X, the position of the end 34a of the outer wall portion 34 is displaced in the circumferential direction around the central axis X, and the case An end 34 a of the outer wall 34 that is in contact with the four-side wall 433 slides on the wall 433.
Therefore, in the embodiment, the sliding resistance is reduced by applying curved surface processing to the end 34 a of the outer wall 34 that slides on the wall 433.

  In the embodiment, when viewed from the axial direction of the central axis X, the gap between the inner periphery of the large diameter portion 431 of the knob housing portion 42 provided in the case 4 and the outer periphery of the outer wall portion 34 of the rotary knob 3 is crossed. A wall portion 433 is provided. For this reason, the gap between the inner circumference of the large-diameter portion 431 and the outer circumference of the outer wall portion 34 prevents other parts arranged in the case 4 from being visually recognized. 4 is difficult to enter.

The inner wall portion 33 is formed with an inner diameter D4 that matches the outer diameter of the support portion 48 on the case 4 side. The rotary knob 3 is assembled to the support portion 48 with the inner wall portion 33 mounted on the support portion 48. In this state, the rotary knob 3 is rotatable about the central axis X.
Here, the support portion 48 on the case 4 side is provided with arm portions 483 and 483 that are elastically deformable in the radial direction of the central axis X (see FIGS. 4A and 5). When the assembly to the support portion 48 is completed, the claw portion 483a provided at the upper end of the arm portion 483 engages with the protrusion 33a provided at the upper end of the inner wall portion 33, and the support portion 48 of the rotary knob 3 (inner wall portion 33). Dropping from is prevented.

The inner wall portion 33 extends linearly along the central axis X, and the inner wall portion 33 has an end portion 331 on the printed circuit board 5 side below the end portion 34a of the outer wall portion 34 on the printed circuit board 5 side. It has a length to be positioned.
The end 331 of the inner wall 33 is provided with a notch 332 as an index for detection by the optical sensor 52 on the printed circuit board 5 (see FIGS. 1 and 2).
The notches 332 are provided over the entire circumference at predetermined intervals in the circumferential direction around the central axis X. When the rotary knob 3 is supported by the case 4, the light emitting element and the light receiving element (see FIG. (See (B) of FIG. 3).

  In the embodiment, when the rotary knob 3 is rotated around the central axis X, the end portion 331 and the notch 332 of the inner wall portion 33 alternately pass between the light emitting element and the light receiving element of the optical sensor 52. Thus, the optical sensor 52 can specify the angular position and the operation amount in the circumferential direction around the central axis X of the rotary knob 3 from a predetermined pulse signal that is detected by passing through the notch 332 and output. .

Further, as shown in FIGS. 2 and 3, a moderation groove 333 constituting a moderation mechanism 6 described later is provided on the inner periphery of the inner wall portion 33 on the printed board 5 side.
The moderation groove 333 is a groove extending linearly along the central axis X from the midway position in the longitudinal direction of the inner circumference of the inner wall portion 33 toward the end portion 331 on the printed circuit board 5 side. In the circumference, the moderation grooves 333 are provided at predetermined intervals over the entire circumference in the circumferential direction around the central axis X.

As shown in FIGS. 3B and 4B, the moderation mechanism 6 includes a moderation groove 333 provided on the inner periphery of the inner wall 33, a spring Sp, and plungers 61 and 61. The
In the support portion 48 of the case 4, a rod support portion 482 is provided at the lower portion on the printed circuit board 5 side so as to protrude toward the inner diameter side. The rod support portion 482 is provided at a target position across the central axis X on the diameter line Ln. The rod support portion 482 penetrates the rod support portion 482 in the radial direction and passes through the hole. 482a is formed.

Inside the support portion 48, a spring Sp is arranged along the diameter line Ln. The shaft portions 611 and 611 of the plunger 61 are inserted and attached to one end and the other end of the spring Sp in the longitudinal direction. .
One end and the other end of the spring Sp are in pressure contact with the flange portions 612 and 612 extending in the radial direction from the shaft portions 611 and 611 of the plunger 61 from the axial direction of the diameter line Ln.
The plungers 61 and 61 are biasing forces acting from the spring Sp, and the tip 611a of the shaft portion 611 penetrating the through hole 482a is inserted into the moderation groove 333 positioned radially outside the through hole 482a and the spring Sp biasing force. It is pressed with.

  In this state, the plungers 61, 61 can be protruded and retracted from through holes 482 a provided in the rod support part 482 of the support part 48, and when the rotary knob 3 rotates in the circumferential direction around the central axis X, the plungers 61, 61 are moved. The moderation feeling is imparted to the rotational operation of the rotary knob 3 by elastically sequentially engaging with the moderation groove 333 that is displaced in the circumferential direction around the central axis X.

Here, the inner wall 33 provided with the moderation groove 333 on the inner periphery is connected to the outer wall 34 at the end opposite to the printed circuit board 5, and the inner wall 33 is cantilevered by the outer wall 34. ing.
Therefore, the inner wall portion 33 can be displaced in the radial direction of the central axis X on the printed circuit board 5 side where the moderation groove 333 is provided, and when the rotary knob 3 is rotated around the central axis X, the inner wall portion 33 is By displacing the central axis X in the radial direction, the rotary operation of the rotary knob 3 can be smoothly performed while ensuring a moderation feeling.

  As shown in FIG. 3, a stopper 49 for preventing buckling of the spring Sp in a direction away from the printed circuit board 5 (upward in the drawing) is spaced upward from the spring Sp. It is provided at the position.

As described above, in the embodiment,
(1) a rotary knob 3 that is extrapolated to the support portion 48 and supported so as to be rotatable around the central axis X;
A case 4 having a knob accommodating portion 42 (accommodating hole) capable of accommodating the rotary knob 3;
In the switch device 1 configured to operate according to the angular position around the central axis (rotation axis) of the rotary knob 3,
The case 4 includes a peripheral wall portion 43 surrounding the outer periphery of the rotary knob 3 accommodated in the knob accommodating portion 42, and a bottom wall portion 44 (connection wall) that connects the peripheral wall portion 43 and the support portion 48 inside the peripheral wall portion 43. A switch device having a structure in which the support portion 48 is formed integrally with the case 4 is provided.

  If comprised in this way, since the support part 48 and the case 4 were integrally formed, while the rigidity strength of the support part 48 improved, the rotary knob 3 is supported by the case 4 only through the support part 48, and the rotary knob Since the number of parts required for supporting 3 is reduced, the production cost of the switch device 1 can be reduced by the reduced number of parts.

  Here, the peripheral wall portion 43 constituting the knob housing portion 42 connects the large diameter portion 431 on the base 41 side of the case 4, the small diameter portion 432 on the printed circuit board 5 side, and the large diameter portion 431 and the small diameter portion 432. A ring-shaped wall portion 433, and the wall portion 433 has a gap between the inner periphery of the knob housing portion 42 and the outer periphery of the rotary knob 3 as viewed from the axial direction of the central axis X. It was set as the structure provided for crossing to radial direction.

  With this configuration, foreign matter can be prevented from entering the case 4 from the gap between the inner circumference of the knob housing portion 42 and the outer circumference of the rotary knob 3, and the structure in the case 4 can be seen from the gap. The appearance of the device 1 does not deteriorate.

(2) On the inner periphery of the cylindrical inner wall portion 33 of the rotary knob 3 that is externally inserted into the support portion 48, a plunger 61 that can be projected and retracted in the radial direction of the central axis X from the outer periphery of the support portion 48 is elastically elastic. Engaging moderation grooves 333 are provided;
The end portion 331 of the inner wall portion 33 is provided with a notch 332 as an index detected by the optical sensor 52 that detects the angular position around the central axis X of the rotary knob 3.

If comprised in this way, since the moderation groove | channel 333 and the notch 332 are provided in the rotary knob 3 itself, the dial holder 104 used with the switch apparatus 100 concerning a prior art example will demonstrate moderation feeling, and the rotary knob 3 of There is no need to provide an angular position around the central axis X.
Therefore, since the number of parts is reduced by the amount of the dial holder 104, the production cost of the switch device 1 can be reduced by that amount.
In addition, the thickness of the switch device 1 in the direction of the central axis X can be made thinner than when the plunger 61 is provided so as to be able to protrude and retract in the axial direction of the central axis X.
Therefore, when the switch device 1 is used by being fitted into a panel in which switches in the vehicle interior are arranged, a large space for providing the switch device 1 is secured on the back side of the panel in the vehicle interior. There is no need to do. Therefore, the space on the back side of the panel can be minimized and the space in the vehicle compartment can be widened.

(3) The support portion 48 has a cylindrical shape. In the support portion 48, the through hole 482 a penetrating in the diameter line Ln direction of the support portion 48 as viewed from the central axis X direction is formed with the diameter line Ln. Is provided on the rod support 482 at the crossing position of
The plunger 61 is attached to one end and the other end of the spring Sp disposed along the diameter line Ln inside the support portion 48, and is configured to be able to protrude and retract from the through hole 482a.

If comprised in this way, sufficient rigidity intensity | strength is securable even if the support part 48 is used as a cylindrical member because the support part 48 is integrally formed with the case 4. FIG. Therefore, the support part 48 can be formed in a cylindrical shape, and a space for arranging the spring Sp inside the support part 48 can be secured.
In the switch device 100 according to the conventional example, the holding member 101 corresponding to the support portion 48 of the present application is formed in a bottomed cylindrical shape in order to ensure rigidity and strength, and the cylindrical wall constituting the holding member 101 One end of the portion 102 is sealed by the bottom wall portion 103.
Therefore, in the switch device 100 according to the conventional example, a groove 103a in which the spring Sp and the plunger P are disposed is provided in the bottom wall portion 103, and the spring Sp and the plunger P are disposed in the groove 103a. It was.
In the switch device 1 according to the embodiment, the spring Sp is accommodated in the cylindrical support portion 48 and attached to one end and the other end of the spring Sp from the through hole 482a penetrating the support portion 48 in the diameter line Ln direction. Since the plunger 61 can be moved in and out, the spring Sp with the plunger 61 attached to one end and the other end is bent so as to be substantially U-shaped. After that, the plungers 61 and 61 are moved into the through holes 482a and 482a by the biasing force of the spring Sp only by aligning the positions of the plungers 61 and 61 with the positions of the through holes 482a and 482a provided in the rod support portion 482. Since it can be inserted, the spring Sp constituting the moderation mechanism 6 and the plunger 61 are installed according to the switch device 1 according to the conventional example. It can also be carried out easily.

(4) In the cylindrical support portion 48, the push knob 2 having the cylindrical base portion 21 inserted in the support portion 48 is provided so as to be movable back and forth in the axial direction of the central axis X.
In the base portion 21, a notch 212 (slit) for avoiding interference with the spring Sp and the plunger 61 is formed in the central axis X direction at the intersection position with the diameter line Ln of the base portion 21 as viewed from the axial direction of the central axis X. Along the line,
The end portion on the printed circuit board 5 side of the pressing portion 212 provided on the base portion 21 is configured to be placed on the push switch 51 provided on the printed circuit board 5 inside the support portion 48.

  If comprised in this way, since the number of parts required for support of the push knob 2 will decrease, the production cost of the switch apparatus 1 can be reduced by the amount corresponding to the reduced number of parts.

(5) Provided on the printed circuit board 5 at a position offset from the spring Sp disposed along the diameter line Ln of the support portion 48 inside the cylindrical support portion 48 as viewed from the axial direction of the central axis X. The light source 53 is arranged.

If comprised in this way, the light source 53 can be arrange | positioned using the space inside the cylindrical support part 48. FIG.
In the switch device 100 according to the conventional example, the holding member 101 corresponding to the support portion 48 of the present application is formed in a bottomed cylindrical shape in order to ensure rigidity and strength, and the cylindrical wall constituting the holding member 101 One end of the portion 102 is sealed by the bottom wall portion 103.
For this reason, an opening 103b that allows light from a light source that illuminates the push knob 106 to pass therethrough is provided in the bottom wall 103, and the machining cost increases by the amount of forming the opening 103b. In particular, when a plurality of push knobs 106 are provided as in the switch device 100, it is necessary to form a plurality of openings 103b, which further increases the processing cost.
In the switch device 1 according to the embodiment, the light source 53 can be arranged inside the cylindrical support portion 48, and it is not necessary to form the opening 103b unlike the switch device 1 according to the conventional example. Only the creation cost can be reduced.
Even if the number of push knobs to be illuminated increases, the degree of freedom of installation of the light source 53 in the cylindrical support 48 is high, so that a plurality of push knobs can be appropriately illuminated without increasing the processing cost. It becomes like this.
In addition, since the light source 53 can be arranged inside the cylindrical base 21 of the push knob 2, the outer diameter of the push knob 2 and the rotary knob 3 can be reduced, so that the switch device 1 can be further downsized and the push knob 2 Even if the diameter is reduced, the push knob 2 can be reliably illuminated by irradiating the operation portion 22 of the push knob 2 with light from the light source 53.

DESCRIPTION OF SYMBOLS 1 Switch apparatus 2 Push knob 3 Rotary knob 4 Case 5 Printed circuit board 6 Moderation mechanism 21 Base part 22 Operation part 23 Peripheral wall part 33 Inner wall part 34 Outer wall part 34a End part 341 Operation part 41 Base part 42 Knob accommodating part 43 Perimeter wall part 44 Bottom wall part 48 Support part 48a Upper end 48b Engaging claw 49 Stopper 51 Push switch 52 Optical sensor 53 Light source 61 Plunger 211 Guide part 212 Press part 321 End part 331 End part 333 Moderation groove 431 Large diameter part 432 Small diameter part 433 Wall part 481 Guide groove 482 Rod Support part 482a Through-hole 483 Arm part 483a Claw part 611 Shaft part 612 Flange part Ln Diameter line Sp Spring X Center axis

Claims (4)

A rotary knob that is extrapolated to the support and supported rotatably;
A switch device configured to operate according to an angular position around a rotation axis of the rotary knob, and a case having an accommodation hole capable of accommodating the rotary knob.
In the case,
A peripheral wall portion surrounding the outer periphery of the rotary knob accommodated in the accommodation hole, and a connection wall connecting the peripheral wall portion and the support portion inside the peripheral wall portion are provided, and the support portion is formed integrally with the case. and,
On the inner periphery of the cylindrical wall portion of the rotary knob that is externally inserted into the support portion, there is provided a moderation groove in which a plunger that can freely protrude and retract from the outer periphery of the support portion is elastically engaged,
A switch device characterized in that an indicator for detecting an angular position of the rotary knob around the rotation axis of the rotary knob is provided at an end of the cylindrical wall on the connection wall side. The support portion has a cylindrical shape, and in the support portion, a through-hole penetrating in the diameter line direction of the support portion when viewed from the rotation axis direction is provided at an intersection with the diameter line. And
2. The plunger according to claim 1, wherein the plunger is attached to one end and the other end of a spring disposed along the diameter line inside the support portion, and is provided so as to be able to protrude and retract from the through hole. The switch device described. In the support portion, a push knob having a cylindrical base portion inserted in the support portion is provided so as to be movable forward and backward in the rotation axis direction.
In the base portion, a slit for avoiding interference with the spring is provided along the rotation axis direction at a position intersecting with the diameter line as viewed from the rotation axis direction.
The switch device according to claim 2, wherein a distal end portion of the base portion is placed on a push switch provided on a printed board inside the support portion. The light source provided on the printed circuit board is disposed at a position offset from a spring disposed along the diameter line inside the support portion when viewed from the rotation axis direction. 3. The switch device according to 3.

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