WO2018074332A1

WO2018074332A1 - Switch device

Info

Publication number: WO2018074332A1
Application number: PCT/JP2017/037069
Authority: WO
Inventors: 良子中野
Original assignee: 株式会社東海理化電機製作所
Priority date: 2016-10-21
Filing date: 2017-10-12
Publication date: 2018-04-26
Also published as: JP2018067512A

Abstract

The present invention is structured so as to have a body part 10, and a rotational operation part 50 that is housed in the body part 10 and can rotate with a rotational axis CL as the center. The body part 10 is structured so as to have, in a side wall section 16 and a bottom surface section 17 thereof that face the rotational operation part 50 housed in the body part 10, display parts (first display part 11, second display part 12) that are positioned around the rotational axis CL and display information. A switch device is structured such that the rotational operation part 50 has, around the rotational axis CL, a reflection surface 51 that reflects all or a portion of the display of a display part (first display part 11) to display the same on a display surface 55 of the rotational operation part 50.

Description

Switch device

Cross-reference of related applications

This application claims the priority of Japanese Patent Application No. 2016-207093, and the entire contents of Japanese Patent Application No. 2016-207093 are incorporated herein by reference.

The present invention relates to a switch device.

A switch device having an illumination mark for illumination display on the surface of a switch knob is known (see, for example, Patent Document 1).

This switch device includes a substrate on which a pushbutton switch and a light source are mounted, a switch knob for operating the pushbutton switch, and an illumination display switch device that illuminates the display rotation operation portion of the switch knob from the back surface by the light source. The switch knob includes an illumination mark embedded in the display rotation operation portion with a translucent resin, a non-display design portion surrounding the illumination mark and formed with a non-translucent resin, and a center of the display rotation operation portion. A lock arm that is suspended from the light source and whose tip is connected to the switch part, a light guide that is suspended from the display rotation operation part and whose tip surface is disposed in the vicinity of the light exit surface, and the light guide and the base of the lock arm and the illumination The light guide includes a connection light guide that connects the marks, and the lock arm, the light guide, and the connection light guide are formed integrally with the illumination mark. With such a configuration, it is supposed that the illumination mark on the surface of the switch knob can be illuminated and displayed by making the illumination light incident on the light guide.

JP 2013-254597 A

In the switch device of Patent Document 1, a lock arm, a light guide, and a connection light guide are formed integrally with an illumination mark inside a switch knob. However, there is a problem in that it is difficult to display only a part of the illumination display on the surface of the switch knob or to display a plurality of displays in an overlapped manner, and to make the display diverse.

An object of the present invention is to provide a switch device capable of providing a variety of displays.

The present invention provides the following switch devices [1] to [9] as an embodiment.

[1] A main body part, a rotation operation part accommodated in the main body part so as to be rotatable around a rotation axis, and the rotation shaft in a side wall part or a bottom part of the main body part facing the accommodated rotation operation part And a display unit that displays information, and the rotation operation unit reflects part or all of the display on the display unit and displays the reflection surface on the display surface of the rotation operation unit A switch device having around the rotating shaft.

[2] The switch device according to [1], wherein the reflection surface is an inclined surface formed of a cone centered on the rotation axis.

[3] The switch device according to [1] or [2], wherein the reflection surface is formed over the entire periphery of the rotation shaft.

[4] The switch device according to [3], wherein the reflecting surface is formed such that the inclined surface continuously changes over the entire circumference of the rotation shaft.

[5] The switch device according to [3], wherein the reflecting surface is formed such that the inclined surface changes stepwise over the entire circumference of the rotation shaft.

[6] The switch device according to [4] or [5], wherein a part of the reflection surface reflects the display unit toward the display surface.

[7] When at least a part of the reflection surface has an incident angle with respect to a normal at a reflection point that reflects a display from the display unit on the side wall of the main body, the refractive index of the rotation operation unit is n. In any one of [1] to [6] above, the critical angle θc for total reflection includes a surface set to be equal to or larger than an angle obtained by θc = Arcsin (1 / n). Switch device.

[8] The switch device according to [7], wherein the rotation operation unit is made of a transparent acrylic material, and the reflection surface is set so that the incident angle is 42 ° or more.

[9] The rotation operation unit includes a knob display formed on the display surface on the display surface, a first display unit formed on the side wall, or a second display unit formed on the bottom surface. The switch device according to any one of [1] to [8], wherein the two are displayed in an overlapping manner.

According to one embodiment of the present invention, it is possible to provide a switch device capable of providing a variety of displays.

FIG. 1 is an external perspective view of a switch device according to an embodiment of the present invention. FIG. 2A is a cross-sectional view passing through the rotation axis CL of FIG. 1, and is a cross-sectional view when the reflecting surface is an inclined surface. FIG. 2B is a cross-sectional view through the rotation axis CL of FIG. 1, and is a cross-sectional view when the reflecting surface has no inclination. FIG. 3 is an explanatory diagram showing a state of internal reflection inside the light guide. 4A is the first embodiment, and is a perspective view of the rotation operation unit as viewed from the A direction of FIG. 1, that is, from the bottom (back). FIG. 4B is a first embodiment, and is a top plan view of the rotation operation unit as viewed from the B direction of FIG. 1, that is, from the top (table). FIG. 5A is a second embodiment, and is a perspective view of the rotation operation unit as viewed from the A direction of FIG. 1, that is, from the bottom (back). FIG. 5B is a cross-sectional view showing the rotation operation section cut along line CC in FIG. 5A. FIG. 5C is a cross-sectional view showing the rotation operation section cut along line DD in FIG. 5A. FIG. 5D is a plan view of the rotation operation unit when viewed from the B direction in FIG. 1, that is, from above (table). FIG. 6A is a perspective view of the rotation operation unit as viewed from the direction A in FIG. 1, that is, from the bottom (back), according to the third embodiment. 6B is a top plan view of the rotation operation unit as viewed from the B direction in FIG. 1, that is, from the top (table). FIG. 7A is an explanatory diagram illustrating an example in which marks are arranged on the first display unit. FIG. 7B is an explanatory diagram illustrating an example in which marks are arranged on the second display unit. FIG. 8 is a perspective view showing an example in which the knob display formed on the display surface and the first display unit or the second display unit are displayed in an overlapping manner.

(Embodiment of the present invention)
As shown in FIG. 1, the switch device 1 according to the embodiment of the present invention is a rotary switch in which a knob-shaped rotation operation unit 50 is accommodated in a main body 10 so as to be rotatable around a rotation axis CL. As shown in FIGS. 2A and 2B, the rotation operation unit 50 can be rotated with respect to the main body unit 10, and the display surface 55 on the upper surface of the rotation operation unit 50 is displayed along with the rotation operation. Various displays are made.

The switch device 1 according to the embodiment of the present invention is configured to include a main body unit 10 and a rotation operation unit 50 accommodated in the main body unit 10 so as to be rotatable about a rotation axis CL. The main body 10 is arranged around the rotation axis CL on the side wall 16 or the bottom surface 17 of the main body 10 facing the accommodated rotation operation unit 50, and displays a display unit (first display unit 11, The second display unit 12) is configured. The rotation operation unit 50 has a reflection surface 51 that reflects part or all of the display on the display unit (first display unit 11) and displays the reflection surface 51 on the display surface 55 of the rotation operation unit 50 around the rotation axis CL. It is configured.

(First display unit 11)
The 1st display part 11 is a display part provided in the side wall part 16 of the accommodating part 15 for accommodating the rotation operation part 50 rotatably. The first display unit 11 displays, for example, a predetermined color, mark, character, figure, and the like. This display may be displayed in the area of the first display section 11 of the side wall section 16 by direct printing or the like. Further, a member such as a sheet may be formed in a region of the first display portion 11 of the side wall portion 16 in a state where a predetermined color, mark, character, or the like is displayed.

Moreover, the 1st display part 11 may be the structure which arrange | positions and displays, for example, light sources, such as LED, a liquid crystal display board. A predetermined color may be displayed by a light source such as an LED, and a predetermined mark, character, figure, or the like may be displayed by a liquid crystal display panel.

(Second display unit 12)
The 2nd display part 12 is a display part provided in the bottom face part 17 of the accommodating part 15 for accommodating the rotation operation part 50 rotatably. The second display unit 12 displays, for example, predetermined colors, marks, characters, graphics, and the like. This display may be displayed in the area of the second display unit 12 on the bottom surface unit 17 by direct printing or the like. Further, a member such as a sheet may be formed in a region of the second display portion 12 of the bottom surface portion 17 in a state where a predetermined color, mark, character, or the like is displayed.

Moreover, the 2nd display part 12 may be the structure which arrange | positions and displays, for example, light sources, such as LED, a liquid crystal display board. A predetermined color may be displayed by a light source such as an LED, and a predetermined mark, character, figure, or the like may be displayed by a liquid crystal display panel.

(Rotation operation unit 50)
As shown in FIGS. 1, 2A, and 2B, the rotation operation unit 50 is formed in a knob shape so as to function as a rotation operation unit of a rotation switch. The rotation operation unit 50 is formed of a light guide unit 53 that is entirely light transmissive. For the light guide 53, for example, a transparent acrylic material of a light transmitting member can be used.

As shown in FIG. 2A, the rotation operation unit 50 has a shape in which the light guide unit 53 is cut out by a space 54.

In the light guide portion 53, as shown in FIGS. 2A and 2B, the reflective surface 51 is formed corresponding to the first display portion 11 and the second display portion 12.

As shown in FIG. 2A, the reflection surface 51 is formed as an inclined surface with respect to the side wall portion 16, that is, the first display portion 11. The reflecting surface 51 is an inclined surface formed of a cone (cone) centered on the rotation axis CL. The reflecting surface 51 reflects light from the first display unit 11 inside the light guide unit 53. This reflection is internal reflection inside the light guide unit 53.

FIG. 3 is a diagram illustrating a state of internal reflection inside the light guide unit 53. With respect to the normal N at the reflection point P, the incident angle from the first display unit 11 is θ ₁ and the reflection angle is θ ₂ . In addition, the refractive index of the transparent acrylic material used as the light guide unit 53 in this embodiment is n = 1.49. In this case, the critical angle θc satisfying the total reflection condition is obtained by the critical angle θc = Arcsin (1 / n). The critical angle θc is about 42 °.

As shown in FIG. 2A, when the incident angle theta ₁ of the reflecting surface 51 is formed as an inclined surface above the critical angle θc is the display surface is totally reflected by the reflecting surface 51 the light from the first display unit 11 55. The light from the second display unit 12 is transmitted through the reflection surface 51, but the light from the first display unit 11 is mainly displayed on the display surface 55.

On the other hand, as shown in FIG. 2B, when the reflecting surface 51 is horizontal, that is, when the incident angle θ ₁ shown in FIG. 3 is 0 (zero), the reflecting surface 51 is horizontal (the incident angle θ ₁ is 0). (Zero)) to the critical angle θc, the light from the first display unit 11 is transmitted without being reflected by the reflection surface 51, and the light from the second display unit 12 is formed. Is transmitted through the reflecting surface 51 and displayed on the display surface 55.

From the above, when the incident angle θ ₁ of the reflecting surface 51 is formed as an inclined surface having a critical angle θc or more, the display of the first display unit 11 is reflected by the reflecting surface 51 and displayed on the display surface 55. The display of 1 display unit 11 is displayed. On the other hand, when the reflecting surface 51 is formed as an inclined surface in a range from the horizontal (incident angle θ ₁ is 0 (zero)) to the critical angle θc, the display of the second display unit 12 is displayed on the display surface 55. .

(First embodiment)
In the first embodiment, as shown in FIG. 4A, in the rotation operation unit 50, as shown in FIG. 2A, a constant reflecting surface 51 is formed over the entire circumference of the rotation axis CL. is there.

Therefore, when the incident angle θ ₁ of the reflecting surface 51 is formed as an inclined surface having a critical angle θc or more, the display on the first display unit 11 is reflected by the reflecting surface 51 and displayed on the display surface 55. The display on the display unit 11 is displayed. Further, when the reflecting surface 51 is formed as an inclined surface in a range from the horizontal (incident angle θ ₁ is 0 (zero)) to the critical angle θc, the display of the second display unit 12 is displayed on the display surface 55. .

As shown in FIG. 4B, the display on the first display unit 11 or the display on the second display unit 12 displayed on the display surface 55 is not a direct viewing display, but a display internally reflected on the reflection surface 51 or a light guide unit. 53 is a display seen through 53. Thereby, it becomes the display form excellent in the designability, and the appearance of the switch apparatus 1 improves.

(Second Embodiment)
In the second embodiment, as shown in FIG. 5A, in the rotation operation unit 50, the reflection surface 51 shown in FIG. 2A has a continuous inclination angle (incident angle θ ₁ ) over the entire circumference of the rotation axis CL. It is formed by changing to.

As shown in FIGS. 5B and 5C, the inclination angle (incident angle θ ₁ ) of the reflecting surface 51 has a different value in each cross section.

As shown in FIG. 5A, in the state where the reflection surface 51 is continuously changing in inclination angle (incident angle θ ₁ ) over the entire circumference of the rotation axis CL, the inclination angle (incident angle θ ₁ ) is the critical angle θc. The region having the inclined surface and the region having the inclined surface having an inclination angle (incident angle θ ₁ ) of not more than the critical angle θc are divided into two or more regions.

As shown in FIG. 5D, in the region 55a where the inclination angle (incident angle θ ₁ ) is an inclined surface having a critical angle θc or more, the display of the first display unit 11 is displayed on the display surface 55, and the inclination angle (incident angle) In the region 55 b where the angle θ ₁ ) is an inclined surface having a critical angle θc or less, the display of the second display unit 12 is displayed on the display surface 55. That is, by changing the reflecting surface 51 of the rotation operation unit 50, the display displayed on the display surface 55 can be switched between the display on the first display unit 11 and the display on the second display unit 12. Further, the display displayed on the display surface 55 rotates and moves in accordance with the rotation operation of the rotation operation unit 50.

(Third embodiment)
In the third embodiment, as shown in FIG. 6A, in the rotation operation unit 50, the reflection surface 51 shown in FIG. 2A has a stepwise inclination angle (incident angle θ ₁ ) over the entire circumference of the rotation axis CL. It is formed by changing to.

As shown in FIG. 6A, the inclination angle (incident angle θ ₁ ) of the reflecting surface 51 has a different value in each step.

As shown in FIG. 6A, in the state in which the reflection surface 51 changes in the inclination angle (incident angle θ ₁ ) stepwise over the entire circumference of the rotation axis CL, the inclination angle (incident angle θ ₁ ) is the critical angle. The region can be divided into two or more regions: a region having an inclined surface of θc or more and a region having an inclined angle (incident angle θ ₁ ) of less than the critical angle θc.

As shown in FIG. 6B, in the region 55a where the inclination angle (incident angle θ ₁ ) is an inclined surface having a critical angle θc or more, the display of the first display unit 11 is displayed on the display surface 55, and the inclination angle (incident angle) In the region 55 b where the angle θ ₁ ) is an inclined surface having a critical angle θc or less, the display of the second display unit 12 is displayed on the display surface 55. That is, by changing the reflecting surface 51 of the rotation operation unit 50, the display displayed on the display surface 55 can be switched between the display on the first display unit 11 and the display on the second display unit 12. Further, the display displayed on the display surface 55 rotates and moves in accordance with the rotation operation of the rotation operation unit 50.

FIG. 7A is an example of a mark in which the first display portion 11 formed on the side wall portion 16 of the main body portion 10 is developed. On the other hand, FIG. 7B is an example of a mark in which the second display portion 12 formed on the bottom surface portion 17 of the main body portion 10 is developed. This mark is an example when applied to a vehicle heat-con. In these displays, in the first to third embodiments, the conditions of reflection or transmission by the reflection surface 51 change according to the change in the inclination angle of the reflection surface 51. As a result, the display displayed on the display surface 55 can be switched between the display on the first display unit 11 and the display on the second display unit 12. Further, the display displayed on the display surface 55 rotates and moves in accordance with the rotation operation of the rotation operation unit 50.

Further, as shown in FIG. 8, the knob display 57 formed on the display surface 55 and the first display unit 11 or the second display unit 12 projected on the display surface 55 can be displayed in an overlapping manner. is there. Thereby, the display of the rotation operation unit 50 on the movable side and the display of the first display unit 11 or the display of the second display unit 12 on the non-movable side can be displayed in an overlapping manner, and it is easy to bring out novelty. Has an effect.

(Effect of the embodiment of the present invention)
The switch device 1 according to the present embodiment has the following effects.
(1) The switch device 1 according to the embodiment of the present invention includes a main body portion 10 that supports a rotation operation, and a rotation operation portion 50 that is accommodated in the main body portion 10 so as to be rotatable about a rotation axis CL. Then, the main body unit 10 includes display units (first display unit 11 and second display unit 12) arranged around the rotation axis CL on the side wall unit 16 or the bottom surface unit 17 of the main body unit 10 that accommodates the rotation operation unit 50. ), And the rotation operation unit 50 reflects a part or all of the display unit (first display unit 11) to display the reflection surface 51 on the display surface 55 of the rotation operation unit 50 around the rotation axis CL. It is comprised so that it may have. Thereby, the display displayed on the display surface 55 can be switched between the display of the first display unit 11 and the display of the second display unit 12.
(2) It is also possible to display the knob display 57 formed on the display surface 55 and the first display unit 11 or the second display unit 12 projected on the display surface 55 in an overlapping manner. Thereby, the display of the rotation operation part 50 which is a movable side, and the display of the 1st display part 11 which is a non-movable side, or the display of the 2nd display part 12 can be displayed superimposed, and it is easy to give a novelty. Furthermore, innumerable arrangements are possible in combination with the knob-shaped design of the rotation operation unit 50.

As mentioned above, although some embodiment of this invention was described, these embodiment is only an example and does not limit the invention which concerns on a claim. These novel embodiments can be implemented in various other forms, and various omissions, replacements, changes, and the like can be made without departing from the scope of the present invention. In addition, not all the combinations of features described in these embodiments are essential to the means for solving the problems of the invention. Furthermore, these embodiments are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Switch apparatus 10 Main-body part 11 1st display part 12 2nd display part 16 Side wall part 17 Bottom face part 50 Rotation operation part 51 Reflective surface 55 Display surface 57 Knob display

Claims

The main body,
A rotation operation unit housed in the main body unit so as to be rotatable about a rotation axis;
A display section that displays information and is arranged around the rotation axis in a side wall or a bottom surface of the main body that faces the accommodated rotation operation section;
The said rotation operation part has a reflective surface which reflects a part or all of the display in the said display part, and displays it on the display surface of the said rotation operation part around the said rotating shaft.
The switch device according to claim 1, wherein the reflection surface is an inclined surface formed of a cone having the rotation axis as a center.
The switch device according to claim 1, wherein the reflection surface is formed over the entire circumference of the rotation shaft.
The switch device according to claim 3, wherein the reflecting surface is formed such that the inclined surface continuously changes over the entire circumference of the rotation axis.
The switch device according to claim 3, wherein the reflecting surface is formed such that the inclined surface changes stepwise over the entire periphery of the rotation axis.
6. The switch device according to claim 4, wherein a part of the reflection surface reflects the display on the display unit toward the display surface.
At least a part of the reflecting surface is totally reflected when an incident angle with respect to a normal point at a reflection point that reflects a display from the display unit on the side wall portion of the main body unit is n. The switch device according to any one of claims 1 to 6, including a plane set so as to be equal to or greater than an angle obtained by θc = Arcsin (1 / n) as a critical angle θc for performing the operation.
The rotation operation unit is a transparent acrylic material,
The switch device according to claim 7, wherein the reflection surface is set so that the incident angle is 42 ° or more.
The rotation operation unit overlaps the display surface with a knob display formed on the display surface and a first display unit formed on the side wall or a second display unit formed on the bottom surface. The switch device according to any one of claims 1 to 8, wherein the switch device is displayed.