DEVICE

Abstract

Device (100), comprising: a case (110); a substrate (131) provided inside the housing (110); a light-emitting object (133) attached to one side of the substrate (131); and an elastic film (132) covering one side of the substrate (131) and the light-emitting object (133) to direct the light from the light-emitting object (133), wherein a through-hole (110E) is formed through the housing (110) to communicate with the interior, wherein the elastic film (132) has a mirror part (132D) on a section of a surface at a position which overlaps the through-hole (110E) at least in a top view, in order to totally reflect light transmitted through an inside of the elastic film (132), wherein the elastic film (132) has a structured section which is provided on a section outside the mirror part (132D) and has a lower reflectivity than the mirror part (132D).

Description

[Technical field]

[0001] The present invention relates to a device. [Background of the invention]

[0002] Conventionally, a technique has been developed in which the surface of a substrate provided within a housing is covered with a cover made of a material with optical transparency to protect the surface of the substrate and to cause light emitted by a light-emitting object attached to the substrate to pass through the cover to be guided to a predetermined light-emitting part exposed by the surface of the housing.

[0003] For example, patent document 1 cited below discloses a technique in which a cover element for a switch is formed integrally with a push button which has optical transparency so that light emitted from a light source provided on the underside of the push button can be directed to the top section of the push button, and a light-shielding layer is provided on the inner wall surface of a space formed on the underside of the push button to prevent light emitted from the light source from leaking in the directions of the side surfaces of the push button. [Related prior art][Patent documents]

[0004] Patent document 1: JP 2007 - 80 763 A

[0005] Document JP 2001 - 155 576 A describes a component for an illuminated push button that is reduced in height and weight and has high brightness and uniform illumination. [Summary of the invention][Problem to be solved by the invention]

[0006] The inventors of the present invention have found that light emitted by the light-emitting object mounted on the substrate may not pass completely through the cover and may be guided through the inside of the cover to escape from a through-hole formed in the housing, and therefore conventional techniques cannot suppress such escape of light; therefore, there is a need for techniques to suppress the escape of light from a through-hole, including the escape of light as mentioned above. [Means of solving the problems]

[0007] The invention is defined by the independent claim.

[0008] A device of one embodiment comprises a housing; a substrate provided within the housing; a light-emitting object attached to one side of the substrate; and an elastic film covering one side of the substrate and the light-emitting object to direct light from the light-emitting object, wherein a through-hole is formed in the housing corresponding to one side of the substrate, and wherein the elastic film has a mirror portion on a section on the surface corresponding to the through-hole to completely reflect light passing through an inner side of the elastic film. [Effects of the invention]

[0009] According to one embodiment, the emission of light from a through-hole formed in a housing can be suppressed. [Brief description of the characters] Fig. Figure 1 is a perspective external view of a switch for the electric seat according to one embodiment; Fig. Figure 2 is a perspective exploded view of a switch for the electric seat according to one embodiment; Fig. 3 is a diagram showing a configuration of a substrate provided in a switch for an electrical seat according to one embodiment; Fig. Figure 4 is a partially enlarged view showing a mounting structure of a plate in an electric seat switch according to one embodiment; Fig. 5 is a cross-sectional view of the in Fig. 1. Switch shown for the electric seat along a line AA; Fig. 6 is a schematic diagram showing a structure for suppressing scattered light from the Fig. The switch shown in Figure 5 is for the electric seat; and Fig. Figure 7 is a diagram showing a surface configuration of a rubber plate provided in an electric seat switch according to one embodiment. [Means of carrying out the invention]

[0010] The following describes embodiments with reference to the figures. Note that, for the sake of simplicity, in the following description the positive direction of the Z-axis in the figures is defined as the top (an example of the "one side" described in the claims) and the negative direction of the Z-axis in the figures is defined as the bottom (an example of the "other side" described in the claims). (Summary of the switch for the electric seat 100)

[0011] Fig. Figure 1 is a perspective exterior view of a switch for the electric seat 100 according to one embodiment. The in Fig. The switch 100 shown in Figure 1 for the electric seat is an example of a "device" and a "control unit" (also called an operating device) described in the claims and is a device for operating an electric seat in a vehicle. The electric seat switch 100 is, for example, arranged at a predetermined position in a vehicle (e.g., on the inside of a door on the driver's side).

[0012] As in Fig. As shown in Figure 1, the electric seat switch 100 is provided with a housing 110 (an example of a "housing" as described in the claims). A base 110A and a base 110B are formed on the top of the housing 110, which can be partially raised. The base 110A is provided with a control panel unit 120A. The base 110B is provided with a control panel unit 120B.

[0013] The control panel unit 120A comprises a control panel 121, an operating knob 122, a light-emitting part 123, and an aperture 125 (an example of a "fastening element" described in the claims). The control panel 121 is an element with a horizontal, flat shape. The operating knob 122 is provided on the surface of the control panel 121. The operating knob 122 is an actuating element by means of which switching operations (e.g., pushing, sliding, tilting) on ​​switches 136 (see Fig. 3) can be performed to make various adjustments to the electric seat (e.g. recline adjustment, height adjustment, tilt adjustment, adjustment of back and forward position).

[0014] The light-emitting part 123 is a belt-shaped element that surrounds the control knob 122. The light-emitting part 123 is optically transparent and transmits the light from the LEDs 134 provided inside the housing 110 (see Fig. 3) emitted light and radiates the light; this makes it possible to improve the recognizability of the position of the control knob 122.

[0015] The cover plate 125 is an element that surrounds the control panel unit 120A along its outer circumference. The cover plate 125 has a three-dimensional shape or a decorative function when finished with chrome plating or similar, and features a snap-lock mechanism for removable attachment to the base 110A.

[0016] The control panel unit 120B has several control objects 124 and a cover 126 (an example of a “fastening element” described in the claims). The multiple control objects 124 are operating elements via which switching operations (e.g., a pressing operation) are carried out on switches 135 (see Fig. 3) to save and recall the settings of the electric seat for each user.

[0017] On the surface of each of the control objects 124, a light-emitting part 124A with a character or figure shape is provided. The light-emitting part 124A is optically transparent, transmits light emitted by an LED 133 provided inside the housing 110, and emits the light; this makes it possible to improve the recognizability of the position and function of each control object 124.

[0018] The cover plate 126 is an element that surrounds the control panel unit 120B along its outer circumference. The cover plate 126 has a three-dimensional shape or a decorative function when it is finished with a chrome plating or similar process, and has a snap-lock mechanism for removable attachment to the base 110B.

[0019] The switch 100 for the electrically adjustable seat has an output (not shown) provided on a side surface of the housing 110 and is electrically connected to a control unit installed in the vehicle via a connector (not shown) and a cable. Through this connection, the switch 100 for the electrically adjustable seat can output an electrical signal to the control unit in response to a switch actuation performed on the actuating button 122 or the actuating object 124, causing the control unit to operate the electrically adjustable seat. (Configuration of the switch for the electric seat 100)

[0020] Fig. Figure 2 is a perspective exploded view of the electric seat switch 100 according to one embodiment. As shown in Fig. As shown in Figure 2, the electric seat switch 100 is configured to include the control panel unit 120A, the control panel unit 120B, the housing 110 and a substrate unit 130, in that order from top to bottom.

[0021] The housing 110 is a container-like element with an interior space 110C and an opening at the bottom. The housing 110 is formed, for example, by injection molding with a resin material. As in Fig. As described in 1, the sockets 110A and 110B, which are formed on the top of the housing 110, are equipped with the control panel units 120A and 120B.

[0022] The interior 110C contains the substrate unit 130. The substrate unit 130 is configured to have a flat substrate 131 (an example of a "substrate" as described in the claims) on which several electronic components (e.g., the switches 135 and 136, the LEDs 133 and 134, and the like) are mounted. The switches 135 and 136 mounted on the substrate 131 are connected via openings formed in the upper sections of the sockets 110A and 110B of the housing 110 to the corresponding control knob 122 and the control objects 124, thereby enabling switching operations to be performed via the control knob 122 and the control objects 124.

[0023] The surface of the carrier 131 is completely covered with a rubber plate 132 to improve water resistance. Note that the opening of the housing 110 is closed at the bottom when a bottom plate (not shown) is attached. (Configuration of substrate 131)

[0024] Fig. Figure 3 is a diagram showing a configuration of a substrate 131 provided in the switch for the electric seat 100 according to one embodiment. As in Fig. As shown in Figure 3, substrate 131 is a flat element on which several electronic components are mounted. For example, a printed circuit board (PWB) made of an insulating material such as glass epoxy is used for substrate 131. The multiple LEDs 133, the multiple LEDs 134, the multiple switches 135, and the multiple switches 136 are mounted on the surface of substrate 131. Note that in Fig. 3 For a better understanding of the arrangement of the LEDs 133 and 134 and the switches 135 and 136 on the surface of the substrate 131, some parts mounted on the surface of the substrate 131 are not shown.

[0025] The multiple LEDs 133 are arranged on the underside of the control objects 124. Each of the LEDs 133 is an example of a "light-emitting object" that emits light from the underside towards the light-emitting part 124A provided on the control object 124, thereby causing the light-emitting part 124A to emit light. The multiple LEDs 134 are arranged on the underside of the control panel 121. Each of the LEDs 134 sends light to the light-emitting part 123 provided on the control panel 121, thereby causing the light-emitting part 123 to emit light.

[0026] The multiple switches 135 are arranged on the underside of the operating objects 124. Each switch 135, in conjunction with a switching operation performed on each operating object 124, performs a switching operation to save and recall energy seat settings for each user. The multiple switches 136 are arranged on the underside of the control panel 121. Each switch 136 performs a switching operation in conjunction with a switching operation performed on the operating knob 122 to make various settings of the electric seat.

[0027] The surface of the substrate 131 is completely covered by the rubber sheet 132 when the electronic components are mounted. The rubber sheet 132 is an example of an "elastic sheet" as described in the claims and is a plate-shaped element with flexibility. The rubber sheet 132 is formed, for example, by compression molding an elastic material such as rubber, silicone, or the like. Viewed from above, the rubber sheet 132 has essentially the same shape as the substrate 131. Therefore, the rubber sheet 132 can completely cover the surface of the substrate 131. The substrate 131 is covered by the rubber sheet 132, which improves its water resistance. Note that the rubber sheet 132 is made of an elastic material with optical transparency. Therefore, the rubber sheet 132 can transmit the light emitted by the LEDs 133 and 134 upwards when the LEDs 133 and 134 are covered.

[0028] The rubber plate 132 is formed in one piece with projecting parts 132A that extend upwards at positions overlapping with the LEDs 133 and 134. In a state where the LEDs 133 and 134 are contained in a space in which the undersides of the projecting parts 132A are open, light from the LEDs 133 and 134 can be emitted upwards from the surface of the projecting parts 132A. Furthermore, the rubber plate 132 has projecting parts 132B that extend upwards at positions overlapping with the switches 135 and 136. The switches 135 and 136 are contained in a space in which the lower sides of the projecting parts 132B are open. Each of the switches 135 and 136 causes an elastic deformation of the corresponding protruding part 132B in response to an actuation performed on the actuating button 122 or the actuating object 124, and thereby an actuation can be performed. (Street light suppression structure of the switch for the electric seat 100)

[0029] The following describes a structure for suppressing stray light at the switch for the electric seat 100. Fig. Figure 4 is a partially enlarged view showing a fastening structure of the cover 126 in the switch for the electric seat 100 according to one embodiment.

[0030] The 126 aperture is connected to the 110B base by a so-called snap-fit ​​mechanism. In particular, as shown in Fig. As shown in Figure 4, the side surfaces of the aperture 126 are provided with hooks 126A that hang downwards. On the other side, engagement claws 110D are provided on the side surfaces of the base 110B. Each of the hooks 126A is provided with the corresponding engagement claw 110D in a state in which it is expanded in a direction corresponding to the shape of the engagement claw 110D in order to engage with the engagement claw 110D. In this way, the aperture 126 is securely and removably attached to the base 110B provided on the top of the housing 110. Note that the aperture 125 is attached to the base 110A by a similar snap-fit ​​mechanism.

[0031] As in Fig. As shown in Figure 4, a through-hole 110E (an example of the "through-hole" described in the claims) is formed on the surface of the housing 110 at a position directly below each of the engagement claws 110D. In other words, the engagement claw 110D is positioned above the through-hole 110E, corresponding to the through-hole 110E. The through-holes 110E penetrate the upper part of the housing 110 in a vertical direction to communicate with the interior 110C. The through-holes 110E are designed to allow the extraction of a mold for forming the engagement claws 110D during the forming process. The through-holes 110E can cause light emitted by the LEDs 133 and 134 to escape to the outside. The electric seat switch 100 of the present embodiment has a structure for suppressing light leakage in order to prevent the occurrence of light leakage from the through holes 110E.

[0032] Note that the apertures 125 and 126 are attached to the sockets 110A and 110B, respectively, by means of a snap-in mechanism at several points along their outer circumferences. In other words, the multiple through-holes 110E are formed on the upper part of the housing 110 along the outer circumferences of the sockets 110A and 110B. Therefore, the electrical seat switch 100 of the present embodiment has a light leak suppression structure to prevent light leakage from each of the multiple through-holes 110E.

[0033] Fig. 5 is a cross-sectional view showing the Fig. Figure 1 shows the switch for the electric seat 100 along a line AA, and is a diagram to illustrate a structure for suppressing stray light from the switch for the electric seat 100. Fig. Figure 6 is a schematic diagram illustrating the structure for suppressing scattered light from the Fig. 5 shown switch for the electric seat 100.

[0034] As in Fig. 5 and Fig. As shown in Figure 6, on the side of the interior 110C of the upper wall part of the housing 110, a cylindrical part 110F, surrounding the through-hole 110E, is provided at the location where the through-hole 110E is formed and extends downwards. Configured in this way, The electric seat switch 100 of the present embodiment shields the light passing through the interior of the chamber 110C to prevent the light from entering the through-hole 110E through the cylindrical part 110F. Therefore, the electric seat switch 100 of the present embodiment can suppress the emission of light from the through-holes 110E.

[0035] Note that, although the lower edge of the cylinder part 110F in the electric seat switch 100 of the present embodiment is located close to the surface of the rubber sheet 132, the lower edge of the cylinder part 110F is configured so that it does not touch the surface of the rubber sheet 132 in order to accommodate dimensional errors. However, the configuration is not limited as such, and the lower edge of the cylinder part 110F may be configured so that it does touch the surface of the rubber sheet 132. This configuration may also suppress the entry of light through the interior of the chamber 110C into the through-hole 110E.

[0036] Furthermore, as in Fig. 5 and Fig. As shown in Figure 6, a wall section 132C is provided between the through-hole 110E and the projecting part 132A on the surface of the rubber plate 132, and this wall section is positioned vertically. Configured in this way, the electric seat switch 100 of the present embodiment can shield light emitted by the LEDs 133 and 134 and directed through the interior of the chamber 110C towards the through-hole 110E by means of the wall section 132C, thus preventing the light from reaching the vicinity of the through-hole 110E. Therefore, the electric seat switch 100 of the present embodiment can suppress the emission of light from the through-holes 110E.

[0037] Note that in the switch for the electric seat 100 of the present embodiment, although the upper end of the wall part 132C is located near the upper wall part of the housing 110, the upper end of the wall part 132C is configured so that it does not touch the upper wall part of the housing 110 in order to accommodate dimensional errors. However, the configuration is not limited as such, and the upper end of the wall part 132C may be configured so that it does touch the wall part of the housing 110. This configuration may also suppress the entry of light through the interior of the chamber 110C into the vicinity of the through-hole 110E.

[0038] Furthermore, as in Fig. 5 and Fig. Figure 6 shows that a mirror part 132D (examples of a "mirror part" are described in the claims) is provided on a section of the rubber plate 132 corresponding to the through-hole 110E. In particular, the mirror parts 132D are provided on the upper surface (a surface on the side of the through-hole 110E) and on the lower surface (a surface on the side of the substrate 131) of the rubber plate 132 in the sections of the rubber plate 132 corresponding to the through-holes 110E.

[0039] The mirror parts 132D, which are provided on the upper surface of the rubber plate 132, can completely reflect the light emitted by the LEDs 133 and 134 and guided through the interior of the rubber plate 132; and thereby the electrical seat switch 100 of the present embodiment can, at the position where the mirror part 132D is formed, suppress the emission of light from the upper surface of the rubber plate 132 due to the refraction of the light guided through the interior of the rubber plate 132 at the upper surface of the rubber plate 132.

[0040] The mirror parts 132D, which are provided on the underside of the rubber plate 132, can completely reflect the light emitted by the LEDs 133 and 134 and guided through the interior of the rubber plate 132; and thereby the electrical seat switch 100 of the present embodiment can, at the position where the mirror part 132D is formed, suppress the emission of light from the top of the rubber plate 132 due to the scattering of the light guided through the interior of the rubber plate 132 on the underside of the rubber plate 132.

[0041] It is advantageous to provide the mirror part 132D in a position that overlaps the through-hole 110E, at least in the top view; and it is also advantageous that the mirror part 132D has a shape and size to cover the entirety of the through-hole 110E.

[0042] Note that a surface texture (an example of a “textured section” as described in the claims) is applied to the surfaces of the rubber sheet 132 on flat sections other than the mirror parts 132D (including a section between the mirror parts 132D and the protruding parts 132A). For example, the mirror parts 132D can be formed using a mold for compression molding the rubber sheet 132 in which irregularities for surface texturing are partially omitted.Although the mirror parts 132D have a lower mold release performance compared to the sections on which the surface texturing is applied, the electrical seat switch 100 of the present embodiment is configured such that the mirror parts 132D are partially provided on the surface of the rubber plate 132; therefore, the configuration has a higher mold release performance compared to a configuration in which the mirroring is applied to the entire surface of the rubber plate 132.

[0043] Furthermore, in the electric seat switch 100 of the present embodiment, reflection is also applied to the surfaces of the projecting parts 132A of the rubber plate 132; and thereby the electric seat switch 100 of the present embodiment can cause the light emitted by each of the LEDs 133 and 134 to be emitted upwards from the projecting part 132A and the light to be efficiently directed to a part to be illuminated (the light-emitting part 123 or 124A) without the light being scattered at the surface of the projecting part 132A. This can suppress the amount of light directed from the projecting part 132A to the through-hole 110E, and thus the emission of light from the through-hole 110E can be suppressed. Note that the surface of the projecting part 132A of the rubber plate 132 is designed as a very thin film, which further improves the upward light transmission.

[0044] Note that each of the components (the cylinder parts 110F, the wall parts 132C, the mirror parts 132D and the projecting parts 132A) of the structure described above is formed integrally with the rubber plate 132 or the housing 110 to suppress light leakage, and that no additional work is required for attachment to the rubber plate 132 or the housing 110; and as a result, the electrical seat switch 100 of the present embodiment has improved ease of assembly. (Surface configuration of the rubber sheet 132)

[0045] Fig. Figure 7 is a diagram illustrating a surface configuration of a rubber plate 132 provided in an electric seat switch 100 according to one embodiment. Fig. Figure 7 shows a configuration of the upper surface of the rubber plate 132.

[0046] As in Fig.As shown in Figure 7, the mirror parts 132D are provided on the upper side of the rubber plate 132 in several sections, each corresponding to one of the several through holes 110E formed in the housing 110; and thereby the electrical seat switch 100 of the present embodiment can prevent the light guided through the interior of the rubber plate 132 from escaping from the through holes 110E for each of the several through holes 110E.

[0047] Furthermore, in the rubber plate 132, for each of the several sections corresponding to each of the several through-holes 110E, the mirror part 132D is provided not only on the upper surface (the surface of the side of the through-hole 110E) but also on the lower surface (the surface of the side of the substrate 131); and thereby the power seat switch 100 of the present embodiment can prevent the light guided through the interior of the rubber plate 132 from exiting the through-holes 110E, which would be caused by scattering of the light on the lower surface of the rubber plate 132 and by a portion of the scattered light emitted from the upper surface of the rubber plate 132 for each of the several through-holes 110E.

[0048] Furthermore, the projecting parts 132A are provided on several sections of the upper surface of the rubber plate 132, covering the multiple LEDs 133 and 134. A reflective coating is applied to the surface of each of the projecting parts 132A; this allows the electrical seat switch 100 of the present embodiment to control the scattering of the emitted light. suppress the light caused by the surface of the protruding part 132A and suppress the amount of light directed from the protruding part 132A onto the through-hole 110E for each of the multiple LEDs 133 and 134, and can consequently suppress the emission of light from the through-hole 110E.

[0049] Furthermore, a wall part 132C, which stands vertically, is provided on the upper surface of the rubber plate 132 at each of several positions between the mirror part 132D and the projecting part 132A; and thereby the electrical seat switch 100 of the present embodiment can shield light from the projecting part 132A into the vicinity of the through-hole 110E through the wall part 132C and consequently suppress the emission of light from the through-hole 110E.

[0050] As described above, according to one embodiment, the electric seat switch 100 has mirror parts 132D that completely reflect the light passed through the interior of the rubber plate 132 onto the surface of the sections corresponding to the through-holes 110E on the rubber plate 132; and thus, according to one embodiment, the electric seat switch 100 can suppress the light passed through the interior of the rubber plate 132 from exiting the surface of the sections corresponding to the through-holes 110E. Therefore, according to one embodiment, the electric seat switch 100 can suppress the emission of light from the through-holes 110E.

[0051] In particular, according to one embodiment, the electric seat switch 100 has the mirror parts 132D on the upper and lower surfaces of the rubber sheet 132 at the sections corresponding to the through-holes 110E; and thereby, according to one embodiment, the electric seat switch 100 can suppress light passing through the interior of the rubber sheet 132 from exiting directly from the upper surface at the sections corresponding to the through-holes 110E, and can suppress the scattering of light at the lower surface at the sections corresponding to the through-holes 110E in order to be emitted from the upper surface of the sections corresponding to the through-holes 110E. Therefore, according to one embodiment, the electric seat switch 100 can suppress the emission of light from the through-holes 110E.

[0052] Furthermore, in the electric seat switch 100 according to one embodiment, a surface texturing is applied to sections on the surface of the rubber plate 132, with the exception of the mirror parts 132D, in order to equip the sections with a lower reflectivity than the mirror parts 132D; and thereby the electric seat switch 100 according to one embodiment can improve the separation performance of the rubber plate 132 from a mold without impairing the effect of suppressing light emission achieved by the mirror parts 132D.

[0053] Furthermore, in the electric seat switch 100 according to one embodiment, a mirror coating (an example of a “light transmission part” described in the claims) is applied to the projecting parts 132A in the rubber plate 132 in order to transmit light emitted by the LEDs 133 and 134 from the underside to the top with minimal loss; and thereby the electric seat switch 100 of the present embodiment can cause light emitted by each of the LEDs 133 and 134 to be emitted upwards from the projecting part 132A and efficiently direct the light to the corresponding light-emitting part 123 or 124A without the light being scattered in the projecting part 132A. Therefore, the electric seat switch 100 of the present embodiment can suppress the amount of light directed from the protruding parts 132A to the through holes 110E, and thereby suppress the emission of light from the through holes 110E.

[0054] Furthermore, according to one embodiment, the electric seat switch 100 has cylindrical parts 110F inside the housing 110, each of which surrounds the corresponding through-hole 110E and extends from the through-hole 110E to the interior 110C; and thus, the electric seat switch 100 of the present embodiment can shield the light passing through the interior of the housing 110 to prevent the light from entering the through-hole 110E through the cylindrical part 110F. Therefore, the electric seat switch 100 of the present embodiment can suppress the emission of light from the through-holes 110E.

[0055] Furthermore, according to one embodiment, the electric seat switch 100 has wall sections 132C, each of which is positioned on the surface of the rubber plate 132 between a position corresponding to the through-hole 110E and a position corresponding to the LED 133 or 134; and thus, the electric seat switch 100 of the present embodiment can shield light directed towards the through-holes 110E from the LEDs 133 and 134 by means of the wall section 132C. Therefore, the electric seat switch 100 of the present embodiment can suppress the emission of light from the through-holes 110E.

[0056] Furthermore, in one embodiment of the electric seat switch 100, a surface texturing is applied to the rubber plate 132 between the mirror parts 132D and the protruding parts 132A, which cover the LEDs 133 and 134; and thereby the electric seat switch 100 of the present embodiment can improve the release performance of a mold from the rubber plate 132 without impairing the effect of suppressing light emission.

[0057] As described above, embodiments according to the present invention have been described; note that the present invention is not limited to these embodiments and various changes and modifications can be made within the scope of the present invention as described in the claims.

[0058] For example, in the embodiments mentioned above, although examples have been described in which the present invention is applied to an electrical seat switch, the present invention is not limited as such and can be applied to all devices and all switching devices, as long as at least the assumption of a configuration that causes a light-emitting object to emit light in a housing.

[0059] Even though in the above embodiments the mirror parts are provided on both the top and bottom sides of the sections corresponding to the through holes in the rubber plate, the configuration as such is not limited, and the mirror parts can be provided only on the top side of the sections corresponding to the through holes in the rubber plate.

[0060] Even if, for example, in the above embodiments the through-holes are provided as parts of the light leakage suppression structure as through-holes for forming engagement claws of the snap structure, the configuration as such is not limited, and the through-holes as parts of the light leakage suppression structure can be any type of through-hole formed in the housing.

[0061] The present international application claims priority over Japanese patent application No. 2018-233636, which was filed on December 13, 2018 and is incorporated herein in its entirety by reference. [Description of reference symbols] 100 switches for electric seats (device, control unit, control unit, seat switches) 110 cases 110A, 110B socket 110C Interior 110D Intervention Claw 110E Through hole 110F Cylinder part 131 Substrat 132 Rubber sheet (elastic sheet) 132A protruding part (a part that covers a light-emitting object) 132B protruding part 132C Wall section 132D mirror part 133,134 LED (light-emitting object)

Claims

[1] Device (100) comprising: a case (110); a substrate (131) provided inside the housing (110); a light-emitting object (133) attached to one side of the substrate (131); and an elastic film (132) covering one side of the substrate (131) and the light-emitting object (133) to direct the light from the light-emitting object (133), wherein a through-hole (110E) is formed through the housing (110) to communicate with the interior, wherein the elastic film (132) has a mirror part (132D) on a section of a surface at a position which overlaps the through-hole (110E) at least in a top view, in order to totally reflect light transmitted through an inside of the elastic film (132), wherein the elastic film (132) has a structured section which is provided on a section outside the mirror part (132D) and has a lower reflectivity than the mirror part (132D). [2] Device (100) according to claim 1, wherein the mirror part (132D) is provided on the surface on one side of the elastic film (132), and a further mirror part is provided on a surface on another side of the elastic film (132). [3] Device (100) according to one of claims 1 or 2, wherein the elastic film (132) has a light transmission part on a section covering the light-emitting object (133) in order to transmit light from the light-emitting object (133) with low loss from another side of the elastic film (132) to one side. [4] Device (100) according to any one of claims 1 to 3, wherein the housing (110) has a cylindrical part that surrounds a region of the through-hole (110E) and extends towards one side of the substrate (131). [5] Device (100) according to one of claims 1 to 4, wherein the elastic film (132) has a wall part which is located on one side between the mirror part (132D) and a section covering the light-emitting object (133). [6] Device (100) according to any one of claims 1 to 5, further comprising: a fastening element which is attached to one side of the housing (110) by engaging with an engagement claw (110D) provided on the housing, the engagement claw (110D) is provided above the through hole (110E). [7] Device (100) according to claim 1, wherein the elastic film (132) is provided with the structured section between the mirror part (132D) and a section covering the light-emitting object (133).

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