CN214411032U - Switching device - Google Patents

Abstract

The utility model provides a switching device realizes having suppressed the waterproof construction that the cost rises when avoiding undercutting the structure. The panel portion of the switch main body is formed with a through hole penetrating in the front-rear direction, and the through hole is disposed opposite to the connecting shaft in the front-rear direction. Therefore, the through-holes can prevent the panel portion and the connecting shaft from being arranged to face each other in the front-rear direction. Further, an opening-enlarging portion that enlarges the front-side opening portion of the through-hole downward is formed below the through-hole, and a lower surface of the opening-enlarging portion is configured as an inclined surface that inclines downward toward the front side when viewed from the left-right direction. Thus, even when the liquid adhering to the front surface of the panel portion enters the through-hole, the liquid can be discharged to the front side of the through-hole by the inclined surface.

Description

Switching device

Technical Field

The utility model relates to a switching device.

Background

In the switchgear disclosed in patent document 1, a cylindrical portion protruding to the front surface side is formed in a holding body (panel portion), and a claw portion protruding to the outside is formed in a side wall of the cylindrical portion. Further, an operating body (operating knob) is inserted into the cylindrical portion so as to be relatively movable, and a through hole into which the claw portion is inserted is formed in the operating body. The switch is pushed by the operating body by moving the operating body in the axial direction of the cylindrical portion.

Here, when the holder is formed by injection molding, the holder is formed by moving a mold in the axial direction of the tube portion. However, in the above-described switch device, the holding body and the claw portion are arranged to face each other in the axial direction of the cylindrical portion. That is, the retainer forms a so-called undercut (undercut) structure. Therefore, when the holder is molded by injection molding or the like, there is a problem that the mold becomes complicated.

In contrast, in the switch device described in patent document 2, a holding portion that protrudes toward the front surface side is formed in a case (panel portion), and a holding protrusion that protrudes in a direction orthogonal to the protruding direction of the holding portion is formed in the holding portion. The operating body is rotatably supported by the holding projection.

Here, the housing is formed with a through hole, and the through hole is disposed to face the holding projection in the protruding direction of the holding portion. This can prevent the case from having an undercut structure. Therefore, the housing can be injection molded while suppressing complication of the mold.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 2012-134098

Patent document 2: japanese patent laid-open publication No. 2013-239361

SUMMERY OF THE UTILITY MODEL

Problem to be solved by the utility model

However, in the switch device described in patent document 2, since the through hole for avoiding the undercut structure is formed in the case as described above, there is a possibility that a liquid such as water flows from the through hole to the wiring substrate side and the wiring substrate is wetted. Therefore, in the above switch device, the cover is provided between the wiring substrate and the case, thereby preventing the wiring substrate from being wetted. Therefore, the switchgear has a problem that the switchgear cost is increased because a waterproof member such as a cover needs to be added. Therefore, the switchgear is desired to be provided with a waterproof structure in which cost increase is suppressed even if an undercut structure is avoided.

In view of the above, an object of the present invention is to provide a switch device that can realize a waterproof structure that suppresses cost increase while avoiding undercut structures.

Means for solving the problems

One or more embodiments of the present invention are a switching device, including: a substrate which is disposed with a first direction orthogonal to the vertical direction as a plate thickness direction and is provided with a switch on one side surface; an operation knob provided on one side of the substrate in the first direction and directly or indirectly pressing the switch by being operated; and a switch main body having a panel portion disposed between the substrate and the operation knob, and a support portion that supports the operation knob so as to be operable, the support portion including: a support body extending from the panel portion to one side in a first direction; and a protrusion portion that protrudes from the support body in a second direction orthogonal to the vertical direction and the first direction and is coupled to the operation knob, wherein a through hole that penetrates in the first direction and is disposed opposite to the protrusion portion in the first direction is formed in the panel portion, an opening enlargement portion that enlarges an opening portion of the through hole on the first direction side toward the lower side is formed on the lower side of the through hole, and an inclined portion that inclines downward as it goes toward the first direction side when viewed from the second direction is formed on the opening enlargement portion.

One or more embodiments of the present invention are directed to a switch device, wherein the operation knob is rotatably coupled to the protrusion portion with the second direction as an axial direction.

One or more embodiments of the present invention provide a switch device, wherein the operation knob is supported by the support main body to be relatively movable in a first direction, and the operation knob is formed with a coupling hole into which the protrusion is inserted to be relatively movable.

One or more embodiments of the present invention provide a switchgear in which a surrounding portion having a cylindrical shape protruding toward the other side in the first direction is formed in the panel portion, an electric component provided on one side surface of the substrate is disposed inside the surrounding portion, and the through hole is formed outside the surrounding portion.

One or more embodiments of the present invention are a switch device, wherein the through hole is configured to be lower than the electric component.

One or more embodiments of the present invention provide a switching device, wherein a protruding portion protruding to the other side of the first direction is formed at the panel portion, and the through hole is formed in the protruding portion.

One or more embodiments of the present invention provide a switch device, wherein an end portion of the inclined portion on the other side of the first direction is disposed closer to the other side of the first direction than an end portion of the upper surface of the through hole on the other side of the first direction.

Effect of the utility model

According to the switching device having the above configuration, a waterproof structure in which an undercut structure is avoided and cost increase is suppressed can be realized.

Drawings

Fig. 1 is a perspective view of the switch device according to the first embodiment, viewed from diagonally right and forward.

Fig. 2 is an exploded perspective view of the switching device shown in fig. 1.

Fig. 3A is an enlarged perspective view of the switch body shown in fig. 2, and fig. 3B is a perspective view of the switch body of fig. 3A as viewed from the rear side.

Fig. 4 is a cross-sectional view (cross-sectional view taken along line 4-4 in fig. 1) showing a center portion in the left-right direction of the switchgear shown in fig. 1, as viewed from the right side.

Fig. 5 is a cross-sectional view (cross-sectional view taken along line 5-5 in fig. 1) showing a right end portion of the switch device shown in fig. 1, as viewed from the right side.

Fig. 6A is a cross-sectional view for explaining the flow of liquid when liquid adheres to the front surface of the panel portion in the switchgear according to the first embodiment, and fig. 6B is a cross-sectional view for explaining the flow of liquid when liquid adheres to the front surface of the panel portion in the switchgear according to the comparative example.

Fig. 7 is a perspective view of the switch device according to the second embodiment, viewed from diagonally right and forward.

Fig. 8 is an exploded perspective view of the switching device shown in fig. 7.

Fig. 9A is an enlarged perspective view of the switch body shown in fig. 8, and fig. 9B is a perspective view of the switch body of fig. 9A as viewed from the rear side.

Fig. 10 is a cross-sectional view (cross-sectional view taken along line 10-10 of fig. 7) showing a front-rear direction intermediate portion of the switchgear shown in fig. 7, as viewed from the front side.

Fig. 11 is a cross-sectional view (cross-sectional view taken along line 11-11 in fig. 7) showing a left-right direction center portion of the switch device shown in fig. 7, as viewed from the right side.

Fig. 12 is a cross-sectional view (cross-sectional view taken along line 12-12 in fig. 7) showing a right end portion of the switch device shown in fig. 7, as viewed from the right side.

Fig. 13A is a side sectional view showing a modification of the undercut avoiding portion, fig. 13B is a side sectional view showing a modification of the opening enlarging portion, and fig. 13C is a side sectional view showing another modification of the opening enlarging portion.

Description of the symbols

10 switching device

20 switch main body

21 panel part

22A supporting sheet (supporting body)

22B connecting shaft (projection)

23 Upper side surrounding part (surrounding part)

24 lower surrounding part (surrounding part)

31 projection

32 through hole

33 opening enlarging part

33A inclined plane (inclined part)

40 knob (operating button)

42A connecting hole

60 base plate

62 LED for indicator (electric parts)

64 Lighting part LED (electric component)

66 switch (electric parts)

100 switching device

110 support part

111 supporting cylinder part (supporting body)

112 first connecting hook (projection)

120 sliding button (operation button)

122C first connecting hole (connecting hole)

Detailed Description

(first embodiment)

The switching device 10 according to the first embodiment will be described below with reference to fig. 1 to 6B. The switch device 10 is fixed to an instrument panel or the like of a vehicle (automobile), and is configured as a device for performing various operations of the vehicle. In the drawings, arrow UP, arrow FR, and arrow RH indicate the upper side, the front side, and the right side of the switch device 10, respectively. In the following description, when directions of up and down, front and back, and left and right are used for description, the up and down direction, the front and back direction, and the left and right direction of the switch device 10 are indicated unless otherwise specified. In addition, the fore-and-aft direction corresponds to the utility model discloses a "first direction", left right direction corresponds to the utility model discloses a "second direction", the front side corresponds to the utility model discloses a "first direction one side".

As shown in fig. 1 and 2, the switch device 10 includes a switch main body 20, a knob 40 as an "operation knob", an indicator lens 46, an indicator light guide lens 50, an illumination light guide lens 52, an actuator pin 54, and a base plate 60. The following describes each configuration of the light splitting device 10.

(with respect to the switch main body 20)

As shown in fig. 1 to 4, the switch main body 20 is made of a resin material. The switch main body 20 has a panel portion 21, and the panel portion 21 is formed in a substantially rectangular plate shape with the front-rear direction being the plate thickness direction.

A pair of right and left support portions 22 for supporting a knob 40 described later are formed on the panel portion 21. The support portion 22 has a support piece 22A as a "support main body". The support piece 22A is formed in a substantially elongated plate shape having a plate thickness direction in the left-right direction and a longitudinal direction in the front-rear direction, and extends forward from both end portions in the left-right direction of the upper portion of the panel portion 21. A coupling shaft 22B as a "projection" is formed at the distal end of the support piece 22A, and the coupling shaft 22B projects outward from the support piece 22A in the left-right direction. That is, the right coupling shaft 22B protrudes rightward from the support piece 22A, and the left coupling shaft 22B protrudes leftward from the support piece 22A. The coupling shaft 22B is formed in a substantially race track shape having a longitudinal direction in the front-rear direction when viewed from the left-right direction.

An upper surrounding portion 23, which is a "surrounding portion", is formed on the rear side of the pair of support portions 22 in the panel portion 21. The upper surrounding portion 23 is formed in a substantially rectangular cylindrical shape having an axial direction in the front-rear direction, and protrudes rearward from the panel portion 21. Further, the right side surface of the right support piece 22A in the left-right direction coincides with the right side surface of the upper surrounding portion 23, and the left side surface of the left support piece 22A coincides with the left side surface of the upper surrounding portion 23.

The panel portion 21 has a lower surrounding portion 24 as a "surrounding portion" formed below the upper surrounding portion 23. The lower surrounding portion 24 is formed in a substantially rectangular cylindrical shape having an axial direction in the front-rear direction, similarly to the upper surrounding portion 23, and protrudes rearward from the panel portion 21. The rear end portion of the upper wall of the lower surrounding portion 24 is notched, and the rear end portion of the upper wall of the lower surrounding portion 24 is disposed on the front side of the rear end portions of the side wall and the lower wall of the lower surrounding portion 24.

An upper lens housing portion 25 for housing a front portion of an indicator light guide lens 50, which will be described later, is formed in the panel portion 21 between the pair of support portions 22 and on the front side of the upper surrounding portion 23. The upper lens housing portion 25 is formed in a substantially rectangular cylindrical shape with the front-rear direction as the axial direction, and protrudes forward from the panel portion 21. The inside of the upper lens housing portion 25 communicates with the inside of the upper surrounding portion 23.

The panel portion 21 has a lower lens housing portion 26 formed below the upper lens housing portion 25 for housing a light guide lens 52 for illumination, which will be described later. The lower lens housing portion 26 is formed in a substantially rectangular cylindrical shape with the front-rear direction as the axial direction, and protrudes from the panel portion 21 to the front side and the rear side, respectively. The rear portion of the lower lens housing portion 26 (the portion protruding rearward from the panel portion 21) is sandwiched vertically between the upper surrounding portion 23 and the lower surrounding portion 24. Specifically, the lower wall of the upper surrounding portion 23 also serves as the upper wall of the rear portion of the lower lens housing portion 26, and the upper wall of the lower surrounding portion 24 also serves as the lower wall of the rear portion of the lower lens housing portion 26. Further, fixing claws 27 extending in the front-rear direction are formed at the rear end portions of the left and right side walls of the lower lens housing portion 26, and the fixing claws 27 are configured to be elastically deformable in the left-right direction. A fixing hook 27A (see fig. 3B) protruding inward in the left-right direction is formed at a distal end side (rear end side) portion of the fixing claw 27.

Further, a pin housing portion 28 for housing an actuator pin 54 described later is formed on the lower side of the lower lens housing portion 26 of the panel portion 21. The pin housing portion 28 is formed in a substantially cylindrical shape with the front-rear direction as the axial direction, and protrudes from the panel portion 21 to the front side and the rear side. The front portion of the pin receiving portion 28 is connected to the lower wall of the front portion of the lower lens receiving portion 26. On the other hand, the rear portion of the pin receiving portion 28 is disposed inside the lower surrounding portion 24 and connected to the upper wall of the lower surrounding portion 24.

In addition, the switch main body 20 has an undercut avoiding portion 30 for avoiding an undercut structure of the switch main body 20. The structure of the undercut avoiding portion 30 will be described later.

(about knob 40)

As shown in fig. 1, 2, 4, and 5, the knob 40 is formed in a concave shape that is open to the rear side as a whole, and is formed in a substantially trapezoidal shape in side view. The knob 40 is divided into two in the up-down direction. Specifically, the knob 40 includes: a knob body 42 constituting a lower portion of the knob 40; and a knob cover 44 constituting an upper portion of the knob 40.

The button main body 42 is made of resin, and is formed in a concave shape open to the upper side and the rear side. A coupling hole 42A is formed through the rear end portion of the side wall of the knob body 42 at the upper end portion. The coupling shaft 22B of the switch body 20 is inserted into the coupling hole 42A, and the knob body 42 is rotatably supported by the switch body 20. That is, the coupling hole 42A is coupled to the coupling shaft 22B so as to be relatively movable (rotatable), and the knob 40 is rotatably supported by the switch main body 20 with the left-right direction as the axial direction.

The knob body 42 is provided with a knob side lens housing portion 42B for housing an indicator lens 46 described later between the left and right side walls. The knob side lens housing portion 42B is formed in a concave shape that is open to the upper side and the rear side, and is erected on the upper end portion of the side wall of the knob body 42.

A button-side pressing portion 42C is formed at a left-right direction center portion of a rear end portion of the lower wall of the button main body 42 (see fig. 4). The button-side pressing portion 42C is formed in a substantially semicircular shape protruding rearward when viewed from the left-right direction, and extends in the left-right direction. Engagement claws 42D are formed at both ends in the left-right direction of the lower wall of the knob body 42. The engagement claw 42D is formed in a substantially rectangular columnar shape extending rearward from the rear end portion of the knob body 42, and is configured to be elastically deformable in the vertical direction. An engagement hook portion 42E that engages with an engagement portion 39 of the switch body 20 described later is formed at a rear end portion of the engagement claw 42D, and the engagement hook portion 42E protrudes downward from the engagement claw 42D.

The button cover 44 is formed in a concave shape open to the lower side and the rear side. The button cover 44 is fixed to the button body 42 by fitting with a claw, and covers the inside of the button body 42 from above.

An indicator hole 44A is formed through the upper wall of the knob cover 44 above the knob-side lens housing portion 42B. The indicator hole 44A is formed in a substantially rectangular shape whose longitudinal direction is the left-right direction. Further, an illumination portion 44B is formed on the upper wall of the button cover 44 at the center in the left-right direction and on the front side of the indicator hole 44A. The illumination portion 44B is formed in a substantially rectangular shape and configured to be illuminated by light emitted from an illumination portion LED64 described later. Specifically, the button cover 44 is made of a transparent resin material, and black paint or the like is applied to the surface of the button cover 44 except for the illumination portion 44B.

The knob 40 is exposed to the panel portion 21 of the switch body 20 on the cab side of the vehicle so as to be rotatable. Specifically, the knob 40 is disposed at the initial position (the position shown in fig. 1, 4, and 5), and by pressing the knob 40 downward, the knob 40 rotates about one side (the arrow a direction side in fig. 5) in the axial direction rotation direction of the coupling shaft 22B. Thereby, when the knob 40 is operated at the initial position, the knob-side pressing portion 42C is displaced to the rear side.

(with respect to indicator lens 46)

As shown in fig. 1, 2, and 4, the indicator lens 46 is made of a transparent resin material that can transmit light. The indicator lens 46 has a substantially rectangular parallelepiped block-shaped lens body 46A, and the lens body 46A is assembled from above to the knob side lens housing portion 42B of the knob body 42. A lens inclined surface 46A1 is formed at a lower corner portion on the front end surface of the lens main body 46A, and the lens inclined surface 46A1 is inclined upward toward the front side in side view.

The indicator lens 46 has an indicator portion 46B of a substantially rectangular parallelepiped shape protruding upward from the distal end portion of the lens main body 46A. The indicator portion 46B is inserted into the indicator hole 44A of the button cover 44 from the lower side, and is exposed from the indicator hole 44A.

(light guide lens for indicator 50)

As shown in fig. 2 and 4, the indicator light guide lens 50 is made of a transparent resin material that can transmit light, like the indicator lens 46. The light guide lens 50 for indicator is formed in a substantially elongated plate shape extending in the front-rear direction with the vertical direction being the plate thickness direction. Further, the indicator light guide lens 50 is set such that the dimension in the width direction (left-right direction) of the rear portion is larger than the dimension in the width direction of the front portion. Specifically, the width of the rear portion of the light guide lens for indicator 50 is set to be larger toward the rear side, and the rear portion of the light guide lens for indicator 50 is formed in a substantially trapezoidal shape in a plan view.

The indicator light guide lens 50 is inserted into the upper surrounding portion 23 of the switch body 20 from the rear side. Specifically, the front portion of the light guide lens 50 for indicator is housed in the upper lens housing portion 25 of the switch body 20, and the rear portion of the light guide lens 50 for indicator is housed in the upper surrounding portion 23. A housing recess 50A that opens to the rear side is formed in the center in the left-right direction at the rear end of the indicator light guide lens 50. The front end surface of the indicator light guide lens 50 is disposed close to the rear side of the indicator lens 46.

(light guide lens for illumination 52)

The illumination light guide lens 52 is made of a transparent resin material that can transmit light, similarly to the indicator light guide lens 50. The illumination light guide lens 52 is formed in a substantially rectangular columnar shape extending in the front-rear direction. The illumination light guide lens 52 is inserted from the front side into the lower lens housing portion 26 of the switch body 20, and is housed in the lower lens housing portion 26.

A stepped portion 52A is formed in a portion on the distal end side of the illumination light guide lens 52, the stepped portion 52A abuts against the distal end surface of the lower lens housing portion 26, and the distal end portion of the illumination light guide lens 52 is disposed on the front side of the lower lens housing portion 26. Specifically, the distal end portion of the illumination light guide lens 52 is housed inside the knob body 42 below the knob-side lens housing portion 42B of the knob body 42. A pair of left and right fixing projections 52B are formed on the rear end portion of the illumination light guide lens 52. The fixing projection 52B projects outward in the left-right direction from the illumination light guide lens 52, and engages with the fixing hook 27A of the switch body 20. This restricts the movement of the illumination light guide lens 52 to the front side.

A first inclined surface 52C is formed at a lower corner portion on the distal end surface of the illumination light guide lens 52, and the first inclined surface 52C is inclined upward toward the front side in a side view. Further, a second inclined surface 52D is formed at an upper corner portion of the distal end portion of the illumination light guide lens 52. The second inclined surface 52D is inclined downward toward the front side in a side view, and is disposed below the illumination portion 44B of the button cover 44.

(with respect to actuating pin 54)

The actuator pin 54 is formed in a substantially round bar shape with the front-rear direction as the axial direction. The actuator pin 54 is inserted into the pin receiving portion 28 of the switch body 20 from the rear side, and is thereby received in the pin receiving portion 28. The distal end surface of the actuator pin 54 is disposed adjacent to the rear side of the knob-side pressing portion 42C of the knob 40. Thereby, the following structure is formed: when the knob 40 is operated, the actuation pin 54 is pressed by the knob-side pressing portion 42C to be displaced rearward. A pin-side pressing portion 54A is formed at the rear end portion of the actuator pin 54, and the pin-side pressing portion 54A is formed in a substantially cylindrical shape having a larger diameter than the other portion of the actuator pin 54.

(with respect to the base plate 60)

The substrate 60 is formed in a substantially rectangular plate shape whose plate thickness direction is the front-rear direction, and is adjacently disposed on the rear side of the switch main body 20. That is, the panel portion 21 of the switch body 20 is configured as a wall portion that separates the knob 40 from the substrate 60.

An indicator LED62 as an "electrical component" is provided on the front surface (one side surface) of the substrate 60 on the rear side of the indicator light guide lens 50. The indicator LED62 is disposed inside the upper surrounding portion 23 of the switch main body 20 and in the housing recess 50A of the indicator light guide lens 50. The indicator LED62 irradiates emitted light to the front side. Thereby, the following structure is formed: the light emitted from the indicator LED62 passes through the indicator light guide lens 50 and the indicator lens 46, and is reflected upward by the lens inclined surface 46a1 of the indicator lens 46, thereby illuminating the indicator portion 46B.

An illumination portion LED64 as an "electrical component" is provided on the front surface of the substrate 60 on the rear side of the illumination light guide lens 52. The illumination section LED64 emits the emitted light to the front side, similarly to the indicator LED 62. Thus, the light emitted from the illumination portion LED64 passes through the illumination light guide lens 52, and is reflected upward by the first inclined surface 52C of the illumination light guide lens 52. Further, the following structure is provided: the light reflected upward is irradiated from the second inclined surface 52D of the illumination light guide lens 52 to the illumination portion 44B of the knob 40, thereby illuminating the illumination portion 44B.

On the front surface of the base plate 60, a switch 66 as an "electrical component" is provided on the rear side of the actuating pin 54. That is, the switch 66 is disposed inside the lower surrounding portion 24. The switch 66 is configured as a push switch that is operated by being pushed rearward. Further, the following structure is provided: in the initial position of the knob 40, the pin-side pressing portion 54A of the actuator pin 54 is disposed adjacent to the front side of the switch portion of the switch 66, and the switch 66 is pressed and operated by rotating the knob 40. That is, the knob 40 is configured to indirectly press the switch 66 via the actuation pin 54.

(about undercut avoidance 30)

Next, the undercut avoiding portion 30 formed in the switch main body 20 will be described. As shown in fig. 3A, 3B and 5, the undercut avoiding portion 30 is formed in the upper portion and the lower portion of each of the left and right end portions of the panel portion 21. That is, the switch main body 20 is formed with 4 undercut avoiding portions 30. The two undercut avoiding portions 30 formed in the upper portion of the panel portion 21 are paired, and the two undercut avoiding portions 30 formed in the lower portion of the panel portion 21 are paired. Therefore, in the following description, for convenience, the reference numeral of the undercut avoiding portion formed in the upper portion of the panel portion 21 is 30U, and the reference numeral of the undercut avoiding portion formed in the lower portion of the panel portion 21 is 30L.

< undercut avoiding part 30U >

The pair of undercut avoiding portions 30U are formed symmetrically with respect to the center portion in the left-right direction of the switch body 20. Therefore, in the following description, the right undercut avoiding portion 30U will be described, and the left undercut avoiding portion 30U will not be described.

The undercut avoiding portion 30U has a protruding portion 31 protruding rearward from the panel portion 21 on the right side of the upper surrounding portion 23, and the protruding portion 31 is formed in a substantially rectangular tubular shape and is disposed adjacent to the right side of the upper surrounding portion 23. Specifically, the right wall of the upper surrounding portion 23 also serves as the left wall of the protruding portion 31. The inside of the protruding portion 31 is configured as a through hole 32, and the through hole 32 penetrates in the front-rear direction.

The left inner circumferential surface of the through hole 32 is disposed flush with the right side surface of the right support piece 22A, and the through hole 32 and the coupling shaft 22B are disposed to face each other in the front-rear direction. That is, the coupling shaft 22B is disposed to overlap the through hole 32 in the front view. Specifically, the coupling shaft 22B overlaps the middle portion in the vertical direction of the through hole 32.

An opening enlargement 33 is formed at the lower side of the front portion of the through hole 32, and the front opening of the through hole 32 is enlarged downward by the opening enlargement 33. Specifically, the front portion of the lower wall of the protruding portion 31 is inclined downward toward the front side, and the opening expanding portion 33 is formed below the through hole 32. The lower surface of the opening enlarging portion 33 is an inclined surface 33A as an "inclined portion". Thus, the lower surface 32A of the through-hole 32 is constituted by the inclined surface 33A constituting the front portion of the lower surface 32A and the rear lower surface 32A1 constituting the rear portion of the lower surface 32A. Inclined surface 33A and rear lower surface 32a1 are formed continuously in the front-rear direction, and the front end of inclined surface 33A is connected to the front surface of panel portion 21. The rear end of the inclined surface 33A is located on the rear end side of the protruding portion 31 and is disposed on the rear side of the rear surface of the panel portion 21.

< undercut avoiding part 30L >

The undercut avoiding portion 30L is disposed below the undercut avoiding portion 30U and on the right side of the lower surrounding portion 24. Specifically, in the undercut avoiding portion 30L, the protruding portion 31 is disposed adjacent to the right side of the lower surrounding portion 24, and the right wall of the lower surrounding portion 24 also serves as the left wall of the protruding portion 31. In the undercut avoiding portion 30L, the vertical dimension of the protruding portion 31 (i.e., the through hole 32) is set slightly larger than the vertical dimension of the undercut avoiding portion 30U.

Further, an engaging portion 39 is formed in the front surface of the panel portion 21 at the opening of the through hole 32 of the undercut avoiding portion 30L. The engaging portion 39 is formed in a substantially rectangular parallelepiped block shape extending in the left-right direction, and both ends in the left-right direction of the engaging portion 39 are connected to the edge of the through hole 32. That is, the engagement portion 39 is disposed to overlap with the vertical intermediate portion of the through hole 32 in the front view. Thus, in the undercut avoiding portion 30L, the engaging portion 39 and the through hole 32 are disposed to face each other in the front-rear direction.

The engagement claw 42D of the knob 40 is disposed adjacent to the upper side of the engagement portion 39, and the engagement hook portion 42E is disposed adjacent to the rear side of the engagement portion 39 (see fig. 5). Thereby, the rotation of the knob 40 at the initial position to the other side in the rotational direction is restricted.

As shown in fig. 6A, in the mounted state of the switch device 10 mounted on the vehicle, the switch device 10 is disposed in a state of being slightly inclined upward as it goes toward the front side.

(Effect)

In the switch device 10 configured as described above, the knob 40 is rotatably supported by the switch body 20 in the left-right direction as an axial direction. Further, a substrate 60 is provided on the rear side of the switch main body 20, and a switch 66 is provided on the front surface of the substrate 60. The switch main body 20 further includes: a plate-like panel portion 21 having a plate thickness direction in the front-rear direction; and a support portion 22 for rotatably supporting the knob 40.

Thus, the panel portion 21 is configured as a wall portion that separates the knob 40 from the base plate 60. Therefore, when a liquid such as water enters from the front side of the switchgear 10, the liquid can be prevented from adhering to the front surface of the panel unit 21 and causing the substrate 60 to be wetted.

Further, the support portion 22 includes a support piece 22A extending from the panel portion 21 toward the front side. Therefore, when the switch main body 20 is formed by injection molding, the switch main body 20 is formed by moving the mold in the front-rear direction. On the other hand, the support portion 22 has a coupling shaft 22B projecting outward in the left-right direction from the support piece 22A, and the knob 40 is rotatably coupled to the coupling shaft 22B. Therefore, the panel portion 21 and the coupling shaft 22B are disposed to face each other in the front-rear direction, and the switch body 20 may have a so-called undercut structure. That is, the mold for molding the switch body 20 may become complicated.

Here, the panel portion 21 is formed with a through hole 32 penetrating in the front-rear direction, and the through hole 32 is disposed to face the coupling shaft 22B in the front-rear direction. Therefore, the through-hole 32 can avoid the panel portion 21 and the coupling shaft 22B from being arranged to face each other in the front-rear direction. That is, the switch main body 20 can be prevented from having an undercut structure. This can suppress complication of a mold for molding the switch body 20.

On the other hand, as described above, the panel portion 21 is a wall portion for suppressing the substrate 60 from being wetted. Therefore, when the through-holes 32 are formed in the panel portion 21, the liquid adhering to the front surface of the panel portion 21 may flow from the through-holes 32 toward the substrate 60, and the substrate 60 may be wetted.

Here, an opening-enlarging portion 33 is formed below the through hole 32, and the front opening of the through hole 32 is enlarged downward by the opening-enlarging portion 33. The lower surface of the enlarged opening portion 33 is formed as an inclined surface 33A inclined downward toward the front side when viewed in the left-right direction. Thus, even when the liquid adhering to the front surface of the panel portion 21 enters the through-hole 32, the liquid can be discharged to the front side of the through-hole 32 by the inclined surface 33A. This point will be described below while comparing with the switch device of the comparative example in which the inclined surface 33A is omitted from the through hole 32.

That is, as shown in fig. 6B, in the switch device of the comparative example, the inclined surface 33A is omitted in the through hole 32. When the liquid W adhering to the front surface of the panel portion 21 descends along the panel portion 21 and reaches the upper edge of the opening of the through-hole 32, the liquid W falls from the upper edge of the opening of the through-hole 32 to the lower surface 32A of the through-hole 32. Thereby, the liquid W flows toward the substrate 60 along the lower surface 32A of the through hole 32, and the substrate 60 may be wetted.

In contrast, in the switch device 10 of the present embodiment, as shown in fig. 6A, an opening-enlarging portion 33 that enlarges the front-side opening portion of the through hole 32 downward is formed below the through hole 32. The lower surface of the enlarged opening portion 33 is formed as an inclined surface 33A inclined downward toward the front side when viewed in the left-right direction. That is, the front portion of the lower surface 32A of the through hole 32 is formed as the inclined surface 33A. Therefore, when the liquid W adhering to the front surface of the panel portion 21 descends along the panel portion 21 and reaches the upper edge of the opening of the through-hole 32, the liquid W falls down from the upper edge of the opening of the through-hole 32 to the inclined surface 33A. Since the inclined surface 33A is inclined downward toward the front side, the liquid W dropped on the inclined surface 33A flows toward the front side by the inclined surface 33A and is discharged toward the front side of the through hole 32. This can suppress the liquid W from flowing toward the substrate 60.

As described above, according to the switch device 10 of the present embodiment, the through-hole 32 is formed in the panel portion 21 of the switch main body 20, whereby the undercut structure of the switch main body 20 can be avoided. Even when the through hole 32 is formed in the panel portion 21, by forming the enlarged opening portion 33 below the through hole 32, the liquid W adhering to the front surface of the panel portion 21 can be dropped onto the inclined surface 33A of the enlarged opening portion 33, and the dropped liquid W can be discharged to the front side of the through hole 32 by the inclined surface 33A. Thus, for example, the substrate 60 can be prevented from being wetted without separately providing a waterproof member such as a cover for preventing the substrate 60 from being wetted. As described above, in the switch main body 20, a waterproof structure that suppresses an increase in cost while avoiding an undercut structure can be realized.

The switch main body 20 is provided with an upper surrounding portion 23, and the upper surrounding portion 23 is formed in a cylindrical shape protruding rearward from the panel portion 21. The indicator LED62 provided on the front surface of the board 60 is disposed inside the upper surrounding portion 23, and the through hole 32 is formed outside the upper surrounding portion 23. Therefore, even if the liquid W adhering to the front surface of the panel portion 21 flows out from the through-holes 32 of the undercut avoiding portions 30U and 30L toward the substrate 60, the upper surrounding portion 23 can suppress the indicator LED62 from being wetted with water. Therefore, the reliability of the switchgear 10 can be improved.

The switch body 20 is provided with a lower surrounding portion 24, and the lower surrounding portion 24 is formed in a cylindrical shape protruding rearward from the panel portion 21. The switch 66 provided on the front surface of the substrate 60 is disposed inside the lower surrounding portion 24, and the through hole 32 that undercuts the avoidance portions 30U and 30L is formed outside the lower surrounding portion 24. Therefore, even if the liquid W adhering to the front surface of the panel portion 21 flows out from the through hole 32 toward the substrate 60, the lower surrounding portion 24 can suppress the switch 66 from being wetted. Therefore, the reliability of the switchgear 10 can be improved.

The undercut avoiding portions 30U and 30L have a protruding portion 31, and the protruding portion 31 is formed in a rectangular tubular shape and protrudes rearward from the panel portion 21. The inside of the protruding portion 31 is formed as a through hole 32. Therefore, in the undercut avoiding portions 30U and 30L, the length of the inclined surface 33A in the front-rear direction can be set longer than in the case where the protruding portion 31 is omitted. This allows the liquid W adhering to the front surface of the panel portion 21 to reliably fall from the upper edge of the opening of the through-hole 32 to the inclined surface 33A of the enlarged opening 33, and to be discharged to the front side of the through-hole 32.

Further, an engagement portion 39 that engages with the knob 40 is provided at the front opening of the through hole 32 of the undercut avoiding portion 30L. Therefore, the liquid W that has entered the through hole 32 of the undercut avoiding portion 30L can be discharged to the front side of the through hole 32 by the inclined surface 33A while avoiding the undercut structure of the switch body 20 by the engaging portion 39.

(second embodiment)

The switching device 100 according to the second embodiment will be described below with reference to fig. 7 to 12. The switchgear 100 is configured in the same manner as the switchgear 10 of the first embodiment, except for the points described below. In the following description, the same reference numerals are given to the same components as those of the switch device 10.

That is, as shown in fig. 7 and 8, the indicator lens 46 and the illumination light guide lens 52 of the first embodiment are omitted from the switch device 100. The switch device 100 includes a switch main body 20, an indicator light guide lens 50, and a substrate 60, and has a slide knob 120 as an "operation knob" instead of the knob 40, as in the first embodiment. The following describes each configuration of the light splitting device 100.

(with respect to the switch main body 20)

As shown in fig. 7 to 12, in the switch body 20 of the second embodiment, the upper lens housing portion 25, the lower lens housing portion 26, the fixing claw 27, and the pin housing portion 28 of the first embodiment are omitted. In the second embodiment, the undercut avoiding portions 30 are formed at both ends in the left-right direction of the lower portion of the panel portion 21. That is, the switch body 20 has two undercut-avoiding portions 30.

A notch 21A that opens upward is formed in the upper end portion of the panel portion 21 at the center in the left-right direction. In addition, instead of the support portion 22 of the first embodiment, a support portion 110 for supporting a slide knob 120 described later is formed on the panel portion 21. The support portion 110 has a support tube portion 111 as a "support body", and the support tube portion 111 is formed in a substantially rectangular tube shape having the front-rear direction as the axial direction, and protrudes forward from the panel portion 21 below the notch portion 21A. Guide grooves 111A for guiding a slide knob 120 described later are formed in upper portions of the left and right side walls of the support cylinder portion 111. The guide groove 111A is open to the left and right outside and extends in the front-rear direction. A partition wall 111B for vertically partitioning the inside of the support tube portion 111 is formed inside the support tube portion 111.

First coupling hooks 112 as "protrusions" are formed on the left and right side walls of the support tube portion 111 below the guide groove 111A, and the first coupling hooks 112 protrude outward in the left-right direction from the side walls of the support tube portion 111. Further, a second coupling hook 113 is formed at the center portion in the left-right direction on the upper wall of the support tube portion 111, and the second coupling hook 113 protrudes upward from the upper wall of the support tube portion 111 and is disposed opposite to the notch portion 21A of the panel portion 21 in the front-rear direction.

The upper surrounding portion 23 extends rearward from the upper portion of the panel portion 21. Further, an upper communication hole 21B (see fig. 11) is formed through the panel portion 21, and the upper communication hole 21B communicates the inside of the upper surrounding portion 23 with the inside of the upper portion (the portion above the partition wall 111B) of the support tube portion 111. The lower surrounding portion 24 extends rearward from the panel portion 21 below the upper surrounding portion 23. Further, a lower communication hole 21C (see fig. 11) is formed through the panel portion 21, and the lower communication hole 21C communicates the inside of the lower surrounding portion 24 with the inside of the lower portion (the portion below the partition wall 111B) of the support tube portion 111.

The two undercut avoidance portions 30 are disposed on the left-right direction outer side of the lower surrounding portion 24 and at positions overlapping the first coupling hooks 112 in the front-rear direction (see fig. 10). In the second embodiment, the protruding portion 31 is formed in a substantially U shape that is open to the upper side. That is, the front end of the through hole 32 is formed in a rectangular hole shape, and a portion of the through hole 32 on the rear side of the front end is formed in a groove shape which is open to the upper side. That is, the upper surface 32B of the through-hole 32 is formed only at the tip end of the through-hole 32. The rear end of the inclined surface 33A is disposed at a portion on the rear end side of the protruding portion 31 and is disposed on the rear side of the upper surface 32B of the through hole 32.

(with respect to the slide knob 120)

As shown in fig. 7, 8, and 10 to 13C, the slide knob 120 includes a knob body 122 and a knob cover 124. The button main body 122 is made of a resin material. The knob main body 122 is formed in a substantially rectangular tubular shape that is open to the rear side, and the support cylindrical portion 111 of the switch main body 20 is inserted into the knob main body 122. A guide rib 122A is formed on the inner peripheral surface of the side wall of the knob body 122. The guide rib 122A extends in the front-rear direction, and is inserted into the guide groove 111A of the switch main body 20 so as to be movable in the front-rear direction. Thereby, the button main body 122 (i.e., the slide button 120) is coupled to the switch main body 20 so as to be slidable in the front-rear direction.

First coupling pieces 122B are formed at positions corresponding to the first coupling hooks 112 of the switch body 20 on the left and right side walls of the knob body 122, and the first coupling pieces 122B are configured to be elastically deformable in the left-right direction. The first coupling piece 122B has a first coupling hole 122C as a "coupling hole" formed therethrough, and the first coupling hole 122C is arranged in a substantially rectangular shape having a longitudinal direction in the front-rear direction. The first coupling hook 112 is inserted into the first coupling hole 122C so as to be relatively movable in the front-rear direction. That is, the first coupling hook 112 is coupled to the first coupling hole 122C so as to be relatively movable.

Further, a second coupling piece 122D is formed on the upper wall of the knob body 122 at a position corresponding to the second coupling hook 113 of the switch body 20, and the second coupling piece 122D is configured to be elastically deformable in the vertical direction. The second connecting piece 122D has a second connecting hole 122E formed therethrough, and the second connecting hole 122E is arranged in a substantially rectangular shape with the longitudinal direction in the front-rear direction, similarly to the first connecting hole 122C. The second coupling hook 113 is inserted into the second coupling hole 122E so as to be relatively movable in the front-rear direction.

Further, in the initial position (the position shown in fig. 7, 11, and 12) of the slide knob 120, the first coupling hook 112 is disposed at the rear end portion of the first coupling hole 122C, and the second coupling hook 113 is disposed at the rear end portion of the second coupling hole 122E, whereby the movement of the slide knob 120 to the front side is restricted. Further, the following structure is provided: by pressing the operation slide knob 120 to the rear side, the first coupling hole 122C is relatively moved with respect to the first coupling hook 112, and the second coupling hole 122E is relatively moved with respect to the second coupling hook 113.

An operation base 122F is formed on an upper wall of the knob body 122. The operation base 122F is formed in a substantially U shape open to the front side in a plan view, and protrudes upward from the upper wall of the button main body 122, and the second coupling hole 122E is disposed inside the operation base 122F. The knob body 122 has an operation portion 122G. The operation portion 122G is formed in a columnar shape protruding rearward from the operation base portion 122F, and is formed in a substantially inverted T-shape when viewed from the rear side. Operation portion 122G is disposed in notch 21A of switch body 20, and a rear end portion of operation portion 122G protrudes rearward from panel portion 21.

Further, a lens housing tube portion 122H for housing a light guide lens 50 for an indicator described later is provided in the upper portion of the knob body 122 at the center portion in the left-right direction. The lens housing tube section 122H is formed in a substantially rectangular tube shape having an axial direction in the front-rear direction, extends from the front wall of the knob body 122 to the rear side, and is inserted into the upper portion of the support tube section 111. The lens housing tube portion 122H has an interior penetrating in the front-rear direction. Thus, a lens hole 122J is formed through the front wall of the knob body 122. The lens hole 122J and the upper communication hole 21B of the switch body 20 are disposed at positions overlapping in the front-rear direction.

Further, an illumination hole 122K is formed in the front wall of the knob body 122 so as to penetrate below the lens hole 122J. The illumination hole 122K is formed in a substantially cross shape in a plan view, and is disposed at a position overlapping with the lower communication hole 21C of the switch main body 20 in the front-rear direction.

The button cover 124 is made of a transparent resin material. The button cover 124 is formed in a concave shape that is open to the rear side. The button cover 124 is disposed to cover the front end of the button body 122 from the outside and is fixed to the button body 122. The button cover 124 has an indicator hole 124A formed therethrough at a position corresponding to the lens hole 122J of the button body 122.

Further, an illumination mark 124B is formed on the button cover 124 below the lens hole 122J. The illumination mark 124B is formed by, for example, applying white paint or the like to the surface of the button cover 124, and applying black paint or the like in which a mark corresponding to the illumination mark 124B is omitted. The illumination mark 124B is disposed opposite to the illumination hole 122K in the front-rear direction.

(light guide lens for indicator 50)

The indicator light guide lens 50 is formed in a substantially elongated plate shape having a plate thickness direction in the vertical direction and a longitudinal direction in the front-rear direction. The indicator light guide lens 50 is inserted into the lens housing tube portion 122H of the knob body 122 from the rear side, and is assembled to the knob body 122. Further, an indicator portion 50B is formed at the distal end portion of the indicator light guide lens 50. The indicator portion 50B protrudes forward from the lens hole 122J of the button main body 122, and is disposed in an indicator hole 124A of the button cover 124.

(with respect to the base plate 60)

The substrate 60 is disposed adjacent to the rear side of the switch main body 20 with the front-rear direction being the plate thickness direction. The indicator LED62 is disposed behind the indicator light guide lens 50 and inside the upper surrounding portion 23 (see fig. 11). Thereby, the following structure is formed: the light emitted from the indicator LED62 passes through the indicator light guide lens 50 to illuminate the indicator portion 50B.

The illumination portion LED64 is disposed behind the illumination mark 124B and the illumination hole 122K of the slide knob 120, behind the lower communication hole 21C of the switch body 20, and inside the lower surrounding portion 24 (see fig. 11). Thereby, the following structure is formed: the illumination mark 124B is illuminated by light emitted from the illumination portion LED64 passing through the lower communication hole 21C and the illumination hole 122K and passing through the button cover 124.

Switch 66 is disposed adjacent to the rear side of operation portion 122G of slide knob 120. Thereby, the following structure is formed: by pressing the slide knob 120 rearward, the operation portion 122G presses the switch 66, and the switch 66 operates.

In the second embodiment, the vertical position of the through hole 32 of the switch main body 20 is set such that the through hole 32 is located below the indicator LED62, the illumination portion LED64, and the switch 66.

As described above, in the second embodiment, the switch body 20 is formed with the support cylindrical portion 111 extending forward from the panel portion 21, and the slide knob 120 is supported by the support cylindrical portion 111 so as to be relatively movable in the forward and backward direction. Further, a pair of left and right first coupling hooks 112 projecting outward in the left-right direction are formed on the support tube portion 111, and the first coupling hooks 112 are coupled to the first coupling holes 122C of the slide knob 120 so as to be relatively movable.

In the second embodiment, the through hole 32 of the undercut avoiding portion 30 is also formed to penetrate the panel portion 21, and the through hole 32 is disposed to face the first coupling hook 112 in the front-rear direction. Therefore, the through-hole 32 can prevent the panel portion 21 and the first coupling hook 112 from being arranged to face each other in the front-rear direction. This can avoid the switch body 20 from having an undercut structure.

Further, an opening expanding portion 33 that expands the front opening of the through hole 32 downward is formed below the through hole 32. The lower surface of the opening enlarging portion 33 is formed as an inclined surface 33A, and the inclined surface 33A is inclined downward toward the front side when viewed from the left-right direction. Thus, even when the liquid adhering to the front surface of the panel portion 21 enters the through-hole 32, the liquid can be discharged to the front side of the through-hole 32 by the inclined surface 33A. As described above, also in the second embodiment, as in the first embodiment, the switch main body 20 can realize a waterproof structure that suppresses an increase in cost while avoiding an undercut structure.

In the second embodiment, the through hole 32 of the switch body 20 is set so that the through hole 32 is located below the indicator LED62, the illumination portion LED64, and the switch 66. Therefore, even when the liquid W adhering to the front surface of the panel portion 21 flows from the through-hole 32 toward the substrate 60, the liquid W moves down along the substrate 60 below the indicator LED62, the illumination portion LED64, and the switch 66. That is, the indicator LED62, the illumination section LED64, and the switch 66 can be configured to be less prone to water. Therefore, the reliability of the switching device 100 can be effectively improved.

In the second embodiment, the protruding portion 31 of the undercut avoiding portion 30 is formed in a substantially U shape that is open upward. Thus, the distal end of the through hole 32 is formed in a rectangular hole shape, and the portion of the through hole 32 other than the distal end is formed in a groove shape which is open upward. Therefore, the rear end of the inclined surface 33A can be disposed on the rear side of the upper surface 32B of the through hole 32. As a result, even when the liquid W adhering to the front surface of the panel portion 21 enters the through-hole 32 along the upper surface 32B of the through-hole 32, the liquid W can be reliably dropped from the rear end of the upper surface 32B of the through-hole 32 to the inclined surface 33A. This effectively suppresses wetting of the substrate 60.

In the switch devices 10 and 100 according to the first and second embodiments, the undercut avoiding portion 30 includes the protruding portion 31 protruding rearward from the panel portion 21, but the protruding portion 31 may be omitted from the undercut avoiding portion 30. That is, as shown in fig. 13A, for example, when the thickness of the panel portion 21 in the front-rear direction is relatively thick, the protruding portion 31 may be omitted from the undercut avoiding portion 30, and the through hole 32 and the opening expanding portion 33 may be formed in the panel portion 21.

In the switch devices 10 and 100 according to the first and second embodiments, the lower surface of the enlarged opening portion 33 in the undercut avoiding portion 30 is formed by the inclined surface 33A, but the configuration of the lower surface of the enlarged opening portion 33 is not limited thereto.

For example, the lower surface of the opening enlarging portion 33 may be formed by a plurality of inclined surfaces. For example, as shown in fig. 13B, the opening-enlarging portion 33 may be formed such that the lower surface 32A of the through-hole 32 has a substantially crank shape in a side view. That is, the enlarged opening portion 33 may be formed such that a connection surface 33B connecting the rear end of the inclined surface 33A and the front end of the rear lower surface 32a1 extends in the vertical direction in side view. This can further suppress the liquid W falling down on the inclined surface 33A from flowing to the rear end of the through hole 32. As shown in fig. 13C, the inclined surface 33A may be formed as an inclined surface curved in a curved shape in a side view.

In the first and second embodiments, the lower surface 32A of the through hole 32 of the undercut avoiding portion 30 is formed by the inclined surface 33A and the rear lower surface 32A1, but the opening enlarging portion 33 may be formed such that the lower surface 32A of the through hole 32 is only the inclined surface 33A. That is, the opening enlargement portion 33 may be formed such that the rear end of the inclined surface 33A coincides with the rear end of the protrusion 31.

In the first embodiment, the protruding portion 31 is formed in a rectangular tubular shape in the undercut avoiding portion 30, but the protruding portion 31 may be formed in a U-shape that is open upward when viewed from the rear side, as in the second embodiment.

In the first embodiment, the coupling shaft 22B is configured to protrude outward in the left-right direction from the support piece 22A, and in the second embodiment, the first coupling hook 112 is configured to protrude outward in the left-right direction from the support tube portion 111. Instead, the coupling shaft 22B may be configured to protrude inward in the left-right direction from the support piece 22A, and the first coupling hook 112 may be configured to protrude inward in the left-right direction from the support tube portion 111. In this case, the position of the undercut avoiding portion 30 may be appropriately set according to the positions of the coupling shaft 22B and the first coupling hook 112.

In the first embodiment, the knob 40 is configured to indirectly push the switch 66 via the actuating pin 54, but the knob 40 may be configured to directly push the switch 66. In the second embodiment, the slide knob 120 is configured to directly push the switch 66 through the operation portion 122G, but the slide knob 120 may be configured to indirectly push the switch 66 through another member.

Claims (7)

1. A switch device is characterized by comprising:

a substrate which is disposed with a first direction orthogonal to the vertical direction as a plate thickness direction and is provided with a switch on one side surface;

an operation knob provided on one side of the substrate in the first direction and directly or indirectly pressing the switch by being operated; and

a switch main body having a panel portion disposed between the substrate and the operation knob, and a support portion for supporting the operation knob in an operable manner,

the support portion includes:

a support body extending from the panel portion to one side in a first direction; and

a protrusion portion protruding from the support body in a second direction orthogonal to the vertical direction and the first direction and coupled to the operation knob,

the panel portion is formed with a through hole penetrating in a first direction and arranged opposite to the protrusion portion in the first direction,

an opening enlargement portion that enlarges an opening portion on one side in the first direction of the through hole toward a lower side is formed on a lower side of the through hole, and an inclined portion that inclines downward as it goes toward the one side in the first direction when viewed from the second direction is formed on the opening enlargement portion.

2. The switching device according to claim 1,

the operation knob is rotatably coupled to the protrusion in a second direction as an axial direction.

3. The switching device according to claim 1,

the operation knob is supported by the support body so as to be relatively movable in a first direction, and a coupling hole into which the protrusion is relatively movably inserted is formed in the operation knob.

4. The switching device according to any one of claims 1 to 3,

a cylindrical surrounding portion protruding toward the other side in the first direction is formed on the panel portion,

the electric component provided on one side surface of the substrate is disposed inside the surrounding portion, and the through hole is formed outside the surrounding portion.

5. The switching device according to claim 4,

the through hole is disposed below the electric component.

6. The switching device according to any one of claims 1 to 3,

a protruding portion protruding toward the other side in the first direction is formed on the panel portion,

the through hole is formed in the protruding portion.

7. The switching device according to any one of claims 1 to 3,

the end portion of the inclined portion on the other side in the first direction is arranged on the other side in the first direction than the end portion on the other side in the first direction on the upper surface of the through hole.

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