TWI552186B - Switch - Google Patents

Description

switch

The present invention relates to switches, and more particularly to switches mounted on the surface of structures such as walls.

In the past, there has been provided a switch comprising: a switch body having a contact in the body; and an operation portion disposed to cover the front surface of the switch body and to turn the contact ON/OFF according to the pressing operation Switching is made (for example, refer to Patent Document 1). Such a switch is attached to the crucible wall via a mounting frame in a state in which the switch main body is fixed to the mounting frame and the rear portion of the switch main body is housed in the embedding hole formed in the wall surface.

Further, in the switch of Patent Document 1, the switch body further includes a light source that is subjected to display control in accordance with the on/off state of the contact. In this case, a hole penetrating in the front-rear direction is formed in a portion of the operation portion facing the light source, and the hole is fitted with a display portion, which is defined as a transparent synthetic resin molded article. The light emitted from the light source is led to the front side of the operation unit via the display portions arranged to face each other. Therefore, the user can confirm the ON/OFF of the load connected to the contact via the display unit of the operation unit and the position of the operation unit. [Prior Technical Literature] [Patent Literature]

Patent Document 1: Japanese Patent Laid-Open Publication No. 2003-317562

[The problem that the invention wants to solve]

However, in order to achieve an improvement in the appearance of the operation portion, when the light transmitting portion formed of the light transmissive material is disposed on the front side of the base portion of the operation portion, the hole for embedding and exposing the display portion must be formed in the light transmission. unit. However, in this case, the light emitted from the display unit has a problem that it is not only spread to the front side of the operation portion but also to the side through the surrounding light transmission portion, and is blurred. Therefore, in the conventional switch, if only the light transmitting portion is simply provided in order to improve the appearance, there is a problem that the user has difficulty in recognizing the display portion.

The present invention has been made in view of the above points, and an object of the present invention is to provide a switch which can improve the visibility of a display portion while achieving an improvement in appearance. [The way to solve the problem]

The switch of the present invention comprises: a switch body including a contact and a light source; and an operation portion disposed on a front surface of the switch body and switching on/off of the contact in accordance with a pressing operation. The operation unit includes a base portion: a light transmitting portion formed of a light transmissive material, and is provided on a front surface of the base portion; and a light guiding portion. The light guiding portion has a display portion exposed at least from a front surface of the light transmitting portion, and guides light emitted from the light source to a front side of the light transmitting portion. The base has a first hole through which the display portion is inserted. The light transmitting portion has a second hole through which the display portion is inserted. An air layer is provided along the entire circumference of the display portion between the inner circumferential surface of the second hole and the display portion.

In the switch, the operation portion preferably has a first end portion rotatably held by the switch body, and a second end portion located on a side opposite to the first end portion. The front surface of the operation portion preferably has a first region closer to the first end side than the center of the first end portion and the second end portion, and a second region closer to the second end portion side than the center . The display unit is preferably disposed in the second region.

In the switch, the operating portion preferably has a first end portion rotatably disposed on the switch body, and a second end portion positioned on a side opposite to the first end portion. The front surface of the operation portion preferably has a first region closer to the first end side than the center of the first end portion and the second end portion, and a second region closer to the second end portion side than the center . The light source is preferably disposed at a position overlapping the first region when the operation portion is viewed from the front.

In the switch, it is preferable that the display portion is disposed in the second region, and the light guiding portion has an extending portion that extends from the light source toward the display portion along a rear surface of the base portion. [Effects of the Invention]

According to the present invention, since the air layer is provided along the entire circumference of the display portion between the inner peripheral surface of the second hole of the light transmitting portion and the display portion, the light emitted from the display portion toward the side is on the side of the display portion and the air. The interface of the layers will be easily reflected. Therefore, the diffusion of the light to the side by the light transmitting portion is suppressed, and the visibility of the display portion can be improved while achieving an improvement in appearance.

[Preferred form of implementing the invention]

Hereinafter, a switch device including the switch 10 of the present embodiment will be described in detail with reference to Figs. 1(a) to 6 .

The switch 10 of the present embodiment is a buried type switch that is attached to the surface of a structure such as a wall surface. As shown in FIG. 2, the switch 10 includes a switch body 1 and an operation handle 2 (operation portion). Further, the switch device of the present embodiment includes a switch 10, a mounting frame 3, and a plate 4. In the present embodiment, the switch 10 is exemplified by a wide handle switch (so-called piano key switch), but a switch other than the wide handle shape may be used. In addition, unless otherwise indicated in the following description, each direction of up, down, left, and right is defined in FIG. That is, the direction after the present embodiment coincides with the direction in which the user presses the operation handle 2 (operation portion).

As shown in FIG. 2, the switch body 1 is formed in a rectangular box shape. The size of the switch body 1 has been standardized, and it is formed to be able to mount up to three to the size of the mounting frame 3 (hereinafter, this size is referred to as one module size). On the front surface of the switch body 1, a button handle 11 is attached in a state of being freely movable in the front-rear direction. Further, a switching mechanism having a contact 200 is formed so that the contact 200 (refer to FIG. 4) accommodated inside the switch body 1 is turned ON/OFF (OFF) each time the button handle is pushed into the rear. ) Switch it.

On the left side of the front surface of the switch body 1, as shown in FIG. 2, a translucent mask 12 is attached to the center part of the up-down direction. As shown in FIG. 4, the inside of the switch body 1 houses point light sources L1 and L2 that are controlled to be turned on and off in accordance with the on/off state of the contact 200, and the light of the light source L1 or L2 is radiated forward through the mask 12. Further, inside the switch body 1, a resistor R1, a current transformer CT1, a diode D1, and the like are housed, and circuit components are provided to illuminate the light sources L1 and L2.

Hereinafter, the light source L1, the light source L2, and the contact 200 (refer to FIG. 4) will be specifically described. The switch 10 is connected such that the contact 200 is inserted between the power source and the load for use in an ON (ON)/OFF (OFF) of a load (for example, a lighting fixture) not shown. When the contact 200 is in the ON state, the light source L1 is lit, for example, in red, indicating that the load is ON. At this time, the light source L2 is not lit. Further, when the contact 200 is in the OFF state, the light source L2 is lit, for example, to green, indicating that the load is OFF. At this time, the light source L1 is not lit. In addition, the switch body 1 may include only one of the light source L1 and the light source L2.

Further, the switch 10 is not limited to the configuration in which the light source L1 and the light source L2 are subjected to the blinking control in accordance with the on/off state of the contact 200 inside the switch body 1. That is, in the case of a load-based lighting fixture, the intensity of the light source may be changed in accordance with the degree of dimming of the lighting fixture.

Further, the switch 10 of the present embodiment may be a so-called three-way switch in addition to the single-cut switch shown in FIG. In this case, for example, two switches 10 are used for one lighting fixture. The configuration is such that even if the contacts inside one of the two switches 10 are not switched, but the contacts inside the other switch are switched, the lighting states of the light sources of the two switches are switched. That is, the lighting state of the light source of each switch 10 is switched in accordance with the open/close state of the circuit to which the load is connected. Further, since the configuration of such a three-way switch is conventionally known, detailed description thereof will be omitted.

On the left side surface and the right side surface of the switch body 1, two mounting claws 13 (only the right side surface is illustrated in FIG. 2) are provided one by one to mount the switch body 1 to the mounting frame 3. Among the right side walls of the switch body 1, a slit is formed around the portion where the two hooking claws 13 are provided, and two places where the hook claws 13 are attached (this portion is referred to as a movable piece 14) are provided at the front end side thereof. The switch body 1 is cantilevered. Therefore, the two attachment hooks 13 provided on the movable piece 14 can be pulled into the inside of the switch body 1 by pressing the projections 15 provided at the rear portion of the movable piece 14.

The left side of the front side of the switch body 1 is as shown in FIG. 2, and the two cylindrical shafts 16 are arranged to sandwich the cover 12 and are arranged on the upper and lower sides for the first end of the operating handle 2. The (left end) 23 side is held to be rotatable.

In the rear portion of the switch body 1, as shown in Fig. 3, two wire insertion holes 17 are provided one by one in the left and right for inserting electric wires (not shown). Inside the switch body 1, a connection terminal of a quick-connect structure electrically connected to the terminals on both sides of the contact 200 is housed, and a core wire of the electric wire inserted from the electric wire insertion hole 17 is connected to the connection terminal.

Further, since such a switch body 1 is conventionally known, the illustration and description of the detailed structure are omitted.

As shown in FIG. 1(b), the operation handle 2 includes a base portion 21, a light transmitting portion 22, a front surface of the base portion 21, and a light guiding portion 7. Further, the base portion 21 and the light transmitting portion 22 are formed as a two-color molded article. The light transmitting portion 22 is formed of a light transmissive material such as polycarbonate to improve the appearance of the operating handle 2. As shown in FIG. 2, the operating handle 2 is formed in a rectangular plate shape having a size sufficiently larger than the front surface of the button handle 11. Further, the base portion 21 and the light transmitting portion 22 are formed in a rectangular shape of approximately the same size when viewed from the front. On the right side of the front surface of the operation handle 2, an elliptical hole penetrating the operation handle 2 in the front-rear direction is provided in the center portion in the up-and-down direction, and the display portion 71 is inserted into the hole, and is a part of the light guiding portion 7. Specifically, as shown in FIG. 1(b), the base portion 21 has a first hole 21a penetrating in the front-rear direction, and the light transmitting portion 22 has a second hole 22a facing forward and backward at a position facing the first hole 21a. Through. The hole is configured such that the first hole 21a communicates with the second hole 22a, and the display portion 71 is exposed from the front surface of the operation handle 2 by inserting the first hole 21a and the second hole 22a. As shown in FIG. 1(b), the rear surface of the operation handle 2 is provided with an extending portion 72 which is a part of the light guiding portion 7, and guides the light irradiated from the mask 12 of the switch body 1 to the display portion 71. Further, since the display unit 71 is caused to emit light by the light beams of the light sources L1 and L2 housed in the switch main body 1 in accordance with the on/off state of the contact 200, the user can confirm the position of the switch 10 and the state of the load. In addition, the light guide unit 7 (the display unit 71 and the extension unit 72) will be described in detail later.

Further, as shown in FIGS. 1(a), 1(b) and 2, the operating handle 2 has a first end portion (left end portion) 23 that is rotatably held by the switch body 1 and a second end portion (right end portion). The portion 24 is located on the opposite side of the first end portion 23. The back surface (back side) of the first end portion 23 of the operation handle 2 is provided with a bearing portion 27 (see FIG. 1(b)) at a portion facing the shaft 16 of the switch body 1, and is rotatably mounted. Axis 16. The operation handle 2 is rotatably supported on the front side of the switch body 1 at the first end portion 23 side (left side) by holding the shaft 16 to the bearing portion 27. When the second end portion 24 side (right side) of the front surface of the operation handle 2 is pushed rearward, the operation handle 2 is rotated by the portion supported by the shaft 16 as a fulcrum. Further, a projection 28 (see FIG. 1(b)) is provided on the back surface of the operation handle 2, and the projection 28 is configured to press the button handle 11 in accordance with the rotation of the operation handle 2. That is, the second end portion 24 of the front surface of the operation handle 2 is switched on and off by the button handle 11 every time the button end 11 is pressed, thereby turning on/off the contact 200 housed inside the switch body 1.

Next, as shown in FIG. 2, the mounting frame 3 is formed of a synthetic resin or a metal plate in a rectangular frame shape, and has a window hole 31 to which the switch body 1 is attached. The mounting frame 3 includes a pair of first beam portions 32 that face each other with the window hole 31 interposed therebetween in the longitudinal direction (the vertical direction of FIG. 2), and a pair of second beam portions 33, and a pair of The direction in which the opposing directions of the beam portions 32 intersect (the horizontal direction) is opposed to each other with the window hole 31 interposed therebetween. That is, the window hole 31 is formed by the space surrounded by the pair of first beam portions 32 and the pair of second beam portions 33. The window hole 31 has a rectangular shape and is formed to have a size slightly larger than the size of the front surface in the case where the three switch bodies 1 are arranged in the vertical direction.

As shown in FIG. 2, each of the first beam portions 32 is provided with an insertion hole 34 into which a screw (not shown) is inserted to abut against the wall surface 100 on the back side of the first beam portion 32 (see FIG. 5). The first beam portion 32 is fixed to the wall surface 100 in a state of the first beam portion 32. Further, each of the first beam portions 32 is provided with a screw hole 35 outside the insertion hole 34 and at the center in the left-right direction.

As shown in FIG. 2, each of the second beam portions 33 is provided with a plurality of through holes as a holding portion for opening and closing the mounting positions at both side portions and the center portion of the longitudinal direction (up-and-down direction) of the window hole 31. The body 1 is held. In other words, two through holes 36 are provided in the central portion of the longitudinal direction of each of the second beam portions 33 as a holding portion. The two through holes 36 are formed to be spaced apart from the two mounting claws 13 positioned on one side of the switch body 1. Further, in the present embodiment, when the switch body 1 is held at the attachment position of the central portion of the mounting frame 3, the two attachment claws 13 of the switch body 1 are inserted into the two through holes 36, respectively.

Further, as shown in FIG. 2, one end side (upper side) of the longitudinal direction of each of the second beam portions 33 is provided with a through hole 37 and a through hole 38 as a holding portion. Further, when the switch body 1 is held at the mounting position of the upper side portion of the mounting frame 3, the two mounting hooks 13 of the switch body 1 are inserted into the through holes 37 and the through holes 38, respectively.

Further, as shown in FIG. 2, the other end side (lower side) of the longitudinal direction of each of the second beam portions 33 is also provided with a through hole 37 and a through hole 38 as a holding portion. Further, when the switch body 1 is held at the attachment position of the lower side portion of the mounting frame 3, the two attachment hooks 13 of the switch body 1 are inserted into the through holes 37 and the through holes 38, respectively.

In other words, the holding portion of each of the second beam portions 33 is composed of two through holes 36 in the center portion, the through hole 37 in the upper portion and the through hole 38, and the through hole 37 through the lower portion. Hole 38. In the present embodiment, in a state where the front end portion of the switch body 1 protrudes from the window hole 31 toward the front side, one switch body 1 is attached to the center portion of the mounting frame 3 via the holding portion.

In the state in which the back surface (back surface side) of the first beam portion 32 is placed on the peripheral edge portion of the hole for burying provided in the wall surface 100 (see FIG. 5), the mounting frame 3 is attached to the wall surface. A switch box (not shown) of 100 is fixed to the wall surface 100. That is, a screw (not shown) that passes through the insertion hole 34 of each of the first beam portions 32 is screwed to the screw hole of the switch cassette. In the case where the switch cassette is not embedded, the mounting frame 3 may be fixed to the wall surface using a conventionally known metal clip (not shown).

As shown in FIG. 2, the panel 4 for beautification has a sheet body 5 attached to the mounting frame, and a sheet mask 6 which is detachably attached to the sheet body 5 so as to cover the sheet body 5.

As shown in FIG. 2, the sheet body 5 is formed of a synthetic resin material in a rectangular frame shape, and has a pair of lateral sheets 51 and a pair of longitudinal sheets 52. Here, the window 53 surrounded by the pair of the horizontal sheets 51 and the pair of the longitudinal sheets 52 is attached to the window frame 31 of the mounting frame 3 in the front-rear direction in a state in which the sheet body 5 is attached to the mounting frame 3. Overlapping locations.

An insertion hole 54 is provided in a central portion of each of the lateral pieces 51 in the left-right direction for inserting a screw. Further, a rectangular through hole 55 is provided in a central portion and both side portions of the longitudinal direction (up-and-down direction) of each of the longitudinal sheets 52.

As shown in FIG. 2, the front plate 62 and the side wall 63 are integrally formed as a synthetic resin molded body. The front wall 62 is formed in a curved shape in which the four corners are curved from the front-rear direction and are swollen from the periphery toward the center toward the front. Further, a rectangular window hole 61 is formed in the center of the front wall 62. Further, the back surface of the front wall 62 is provided with a hook portion (not shown) corresponding to each of the plurality of through holes 55 provided in the sheet body 5, and is inserted into the through hole 55 and hooked thereto. The peripheral portion of the front wall 62. The side wall 63 is formed in an annular shape whose front end is connected to the periphery of the front wall 62. This side wall 63 is configured to be inclined outward toward the front.

Next, the light guiding portion 7 of the operating handle 2 will be described in detail. As shown in FIGS. 1( a ) and 1 ( b ), the light guiding unit 7 is configured to guide light emitted from the light source L1 or L2 of the switch body 1 to the front side of the operation handle 2, and includes a display unit 71. And an extension 72.

As shown in Fig. 1 (a) and Fig. 1 (b), the display portion 71 is a molded article made of a light transmissive material such as acryl resin, and has a flange portion 71a fixed to the back side of the base portion 21. The periphery of the first hole 21a; and the body portion 71b project forward from the flange portion 71a.

The main body portion 71b is formed in an elliptical shape having the same shape as the first hole 21a and the second hole 22a as viewed from the front-rear direction. The body portion 71b is inserted through the first hole 21a and the second hole 22a, and the front surface of the body portion 71b is exposed from the front surface of the operation handle 2. Further, as shown in FIG. 1(a), the front surface of the main body portion 71b is provided with a groove portion 71c having a plurality of grooves extending in the vertical direction. Since the light is diffused and reflected by the groove portion 71c, the glare can be suppressed.

As shown in FIG. 1(b), the extending portion 72 extends from the front side of the light sources L1 and L2 of the switch body 1 toward the display portion 71 along the back surface of the base portion 21. Specifically, the extending portion 72 is an elongated plate-shaped crucible that extends in the left-right direction, and is disposed along the back surface of the base portion 21 between the base portion 21 and the switch body 1 . The extending portion 72 has an incident surface 72a that faces the mask 12 of the switch body 1 on the left end side, and an exit surface 72b that faces the display portion 71 on the right end side. The light emitted from the light source L1 or L2 of the switch body 1 through the mask 12 is incident from the incident surface 72a, and is refracted on the first refractive surface 72c to be directed to the right. Further, the light directed to the right is refracted forward on the second refracting surface 72d, and is emitted toward the display portion 71 from the exit surface 72b.

Here, between the entire circumference of the main body portion 71b of the display portion 71 of the present embodiment and the inner peripheral surface of the second hole 22a, as shown in Figs. 1(a) and 1(b), the air layer 8 is provided. . In other words, the main body portion 71b of the display portion 71 is disposed to be separated from the light transmitting portion 22 along the entire circumference of the main body portion 71b. Here, with respect to the refractive index system 1 of the air layer 8, the refractive indices of the display portion 71 and the light transmitting portion 22 of the resin molded article are both about 1.5 to 1.6. Therefore, by providing the air layer 8, the critical angle is reduced, and the light emitted from the display portion 71 toward the side (toward the light transmitting portion 22) is easy to be at the interface between the side surface of the display portion 71 and the air layer 8. Total reflection occurs. That is, by providing the air layer 8, the diffusion of light to the light transmitting portion 22 is suppressed. Then, even if the appearance of the operation handle 2 is improved by providing the light transmitting portion 22, the diffusion of light to the light transmitting portion 22 is suppressed, and the visibility of the display portion 71 can be improved.

Further, the thickness of the air layer 8 (that is, the size of the slit when viewed from the front) is preferably 0.5 mm or less. Further, in the present embodiment, as shown in Fig. 1(b), an air layer is also provided between the main body portion 71b and the inner peripheral surface of the first hole 21a of the base portion 21 in connection with the air layer 8. However, between the main body portion 71b and the inner peripheral surface of the first hole 21a of the base portion 21, it is more preferable that the main body portion 71b and the first hole 21a are in contact with each other along the entire circumference without providing an air layer. In this case, stable positioning of the display unit 71 can be performed, and the thickness of the air layer 8 can be kept more uniform throughout the entire circumference.

Further, when the front surface of the operation handle 2 is divided into the first region 25 and the second region 26 as shown in FIG. 1(a), the display portion 71 of the present embodiment is disposed in the second region 26. The first region 25 referred to herein is defined as a region closer to the first end portion 23 than the center C1 of the first end portion 23 and the second end portion 24 (the broken line of FIG. 1(a)) (in this embodiment) The second region 26 is defined as follows: a region closer to the second end portion 24 than the center C1 (in the present embodiment, the right half of the front surface). That is, when the ON/OFF of the contact 200 is switched, the user presses the second region 26 on the front side of the operation handle 2 backward, and the display portion 71 is also disposed in the second region 26. Therefore, when the user switches the ON/OFF of the contact 200, the light of the display unit 71 is targeted, and the display unit 71 or its periphery can be pushed backward. Therefore, the operability is improved as compared with the case where the display portion is disposed in the first region 25 on the side of the first end portion 23 where the switch body 1 is held to be rotatable. Further, as shown in FIG. 1(a), the display unit 71 is preferably disposed in the second region 26 in the vicinity of the second end portion 24 from the center C1.

Further, when the operation handle 2 is viewed from the front, the button handle 11 of the switch body 1 is disposed slightly closer to the second region 26 with respect to the center C1. Therefore, in terms of structure, the light sources L1 and L2 and the mask 12 of the switch body 1 are disposed at positions overlapping the first region 25 when the operation handle 2 is viewed from the front. Here, as described above, the light guiding portion 7 of the present embodiment has the extending portion 72 that extends from the front side of the light sources L1 and L2 of the switch main body 1 toward the display portion 71 along the back surface of the base portion 21. Therefore, even when the operation handle 2 is disposed from the front as in the present embodiment, when the positional relationship between the light sources L1 and L2 of the switch body 1 and the display unit 71 is different, the extension portion 72 can be used. The light beams of the light sources L1 and L2 are guided to the display portion 71.

Further, the operation handle 2 shown in FIGS. 1(a) to 5 is used for attaching one switch body 1 to the central portion of the mounting frame 3, and the operation handle 2 is sized to be covered with the plate. The apertures 61 of 6 are approximately the same size. On the other hand, for example, when three switch bodies 1 are attached to the mounting frame 3, three operating handles 2A (operation portions) as shown in FIG. 6 may be provided. The size of each of the operating handles 2A is formed to be approximately the same size as the size in which the window holes 61 are equally divided in the longitudinal direction. In this case, one switch body 1 and one operation handle 2A constitute one switch. Further, since the operation handle 2A has the same configuration as the operation handle 2 except for the size, the description thereof will be omitted. Further, although not shown, when two switch bodies 1 are attached to the mounting frame 3, two operation handles (operation portions) may be provided. In this case, the size of each of the operating handles is formed to be approximately the same size as the size in which the window holes 61 are equally divided in the longitudinal direction.

The switch 10 of the present embodiment described above includes a switch body 1 including a contact 200 and light sources L1, L2, and an operation portion (operation handle 2). The operation unit (operating handle 2) is disposed to cover the front surface of the switch body 1, and switches the on/off of the contact 200 in accordance with the pressing operation. The operation unit (operation handle 2) includes a base portion 21, a light transmitting portion 22 formed of a light transmissive material, and is disposed on the front surface of the base portion 21, and a light guiding portion 7. The light guiding portion 7 has a display portion 71 exposed at least from the front surface of the light transmitting portion 22, and guides light emitted from the light source L1 and the L2 to the front side of the light transmitting portion 22. The base portion 21 has a first hole through which the display portion 71 is inserted. The light transmitting portion 22 has a second hole 22a through which the display portion 71 is inserted. An air layer 8 is provided along the entire circumference of the display portion 71 between the inner circumferential surface of the second hole 22a and the display portion 71.

Further, among the switches 10, the operation portion (operation handle 2) preferably has a first end portion 23 that is rotatably supported at the switch body 1, and a second end portion 24 that is located opposite to the first end portion 23 . The front surface of the operating portion (operating handle 2) preferably has a first region 25 that is closer to the first end portion 23 than the center C1 of the first end portion 23 and the second end portion 24, and a second region 26 that is more centered C1 is closer to the second end portion 24 side. The display unit 71 is preferably disposed in the second area 26.

Further, among the switches 10, the operation portion (operation handle 2) preferably has a first end portion 23 that is rotatably supported at the switch body 1, and a second end portion 24 that is located opposite to the first end portion 23 . The front surface of the operating portion (operating handle 2) preferably has a first region 25 that is closer to the first end portion 23 than the center C1 of the first end portion 23 and the second end portion 24, and a second region 26 that is more centered C1 is closer to the second end portion 24 side. It is preferable that the light sources L1 and L2 are disposed at positions overlapping the first region 25 when the operation portion (operation handle 2) is viewed from the front. In this case, it is preferable that the display unit 71 is disposed in the second region 26, and the light guiding portion 7 has an extending portion 72 that extends from the light sources L1 and L2 toward the display portion 71 along the back surface of the base portion 21. [Description of component symbols]

1‧‧‧Switch body
2‧‧‧Operation Department
2A‧‧‧Operation handle
3‧‧‧Installation box
4‧‧‧ plates
5‧‧‧ plate body
6‧‧‧Slab mask
7‧‧‧Light Guide
8‧‧‧ air layer
10‧‧‧ switch
11‧‧‧ button handle
12‧‧‧ mask
13‧‧‧Installation claws
14‧‧‧ movable piece
15‧‧‧ Protrusion
16‧‧‧Axis
17‧‧‧Wire insertion hole
21‧‧‧ base
21a‧‧‧ first hole
22‧‧‧Transmission Department
22a‧‧‧ second hole
23‧‧‧ First end
24‧‧‧second end
25‧‧‧First area
26‧‧‧Second area
27‧‧‧ Bearing Department
28‧‧‧Protrusion
31‧‧‧ window hole
32‧‧‧First Beam Department
33‧‧‧ Second Beam
34‧‧‧Into the hole
35‧‧‧ screw holes
36,37,38‧‧‧through holes
51‧‧‧ Horizontal film
52‧‧‧Longitudinal film
53‧‧‧ window hole
54‧‧‧Insert hole
55‧‧‧through holes
61‧‧‧ window hole
62‧‧‧ front wall
63‧‧‧ side wall
71‧‧‧Display Department
71a‧‧‧Flange
71b‧‧‧ Body Department
71c‧‧‧Ditch
72‧‧‧Extension
72a‧‧‧Incoming surface
72b‧‧‧Outlet
72c‧‧‧1st refractive surface
72d‧‧‧2nd refractive surface
100‧‧‧ wall
200‧‧‧Contacts
C1‧‧ Center
CT1‧‧‧ converter
D1‧‧‧ diode
L1, L2‧‧‧ light source
R1‧‧‧Resistors

Fig. 1 (a) is a front view of a main portion of an operation handle of the switch gear of the embodiment, and Fig. 1 (b) is a cross-sectional view taken along line A-A of Fig. 1 (a). Fig. 2 is an exploded perspective view of the switch device of the embodiment as seen from the front. Fig. 3 is a perspective view of the switch device of the embodiment as seen from the rear of the switch body and the mounting frame. Fig. 4 is a circuit diagram of a switch of the switching device of the embodiment. Fig. 5 is a front view showing a state in which the switch device of the embodiment is attached to a wall surface. Fig. 6 is a front elevational view showing a state in which another switch device of the embodiment is attached to a wall surface.

2‧‧‧Operation Department

7‧‧‧Light Guide

8‧‧‧ air layer

21‧‧‧ base

21a‧‧‧ first hole

22‧‧‧Transmission Department

22a‧‧‧ second hole

23‧‧‧ First end

24‧‧‧second end

25‧‧‧First area

26‧‧‧Second area

27‧‧‧ Bearing Department

28‧‧‧Protrusion

71‧‧‧Display Department

71a‧‧‧Flange

71b‧‧‧ Body Department

71c‧‧‧Ditch

72‧‧‧Extension

72a‧‧‧Incoming surface

72b‧‧‧Outlet

72c‧‧‧1st refractive surface

72d‧‧‧2nd refractive surface

C1‧‧ Center

Claims (4)

A switch comprising: a switch body having a contact and a light source; and an operation portion disposed to cover a front surface of the switch body and switching an ON/OFF of the contact according to a pressing operation; The switch is characterized in that: the operation portion includes: a base portion; a light transmitting portion formed of a light transmissive material and disposed on a front surface of the base portion; and a light guiding portion having a display exposed at least from a front surface of the light transmitting portion a portion, and directing light emitted from the light source to a front side of the light transmitting portion; and the base portion has a first hole through which the display portion is inserted, the light transmitting portion having a second hole through which the display portion is inserted An air layer is provided between the inner circumferential surface of the second hole and the display portion along the entire circumference of the display portion. The switch of claim 1, wherein the operating portion has: a first end portion rotatably held by the switch body; and a second end portion located on a side opposite to the first end portion And the front surface of the operating portion has a first region closer to the first end side than a center of the first end portion and the second end portion, and a second region closer to the second end than the center portion a portion side; and the display portion is disposed in the second region. The switch of claim 1, wherein the operating portion has: a first end portion rotatably held by the switch body; and a second end portion located on a side opposite to the first end portion And the front surface of the operating portion has a first region closer to the first end side than a center of the first end portion and the second end portion, and a second region closer to the second end than the center portion The light source is disposed at a position overlapping the first region when the operation portion is viewed from the front. The switch of claim 3, wherein the display portion is disposed in the second region, and the light guiding portion has an extending portion extending from the light source toward the display portion along a back surface of the base portion.