JPH0731963B2 - Switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a switch device in which an on / off operation of a switch body is performed by an operating body having a large operation surface.

(Prior Art) A conventional switch device of this type is provided with an operating body on the front surface as shown in, for example, Japanese Patent Laid-Open Nos. Sho 58-94712 and Sho 62-12320 (hereinafter referred to as the prior art). Two switch bodies with a large operation surface are mounted on the mounting frame, and the plate body with the rectangular window facing the switch body is mounted on the mounting frame. It is known that the operating handle of (1) is arranged facing the window hole.

Further, Japanese Utility Model Laid-Open No. 61-29418 discloses a switch in which the operating body is smaller than the outer diameter of the switch body and is not attached to the mounting frame, but the operating body is provided with a light guide (guide member). Has been done.

(Problems to be Solved by the Invention) The switch main body of the above-described conventional switch device is provided with a base portion provided with an operating body and a light emitting display mechanism connected to the base portion, and the light emitting display mechanisms are mounted adjacent to each other. It is used for two switches that are mounted on the frame and provided with two switch bodies.

In this conventional switch device, since the switch body has the base portion and the light emitting display mechanism connected to the base portion, two switch bodies are used for upper and lower use, respectively. Since it is necessary to use a dedicated switch body, it becomes a dedicated instrument, which is not versatile and expensive.

That is, in the switch device disclosed in JP-A-58-94712, the switch body is provided with the light emitting display mechanisms adjacent to each other so that the ON and OFF operations can be performed in the same direction. If the switch body of the model is arranged so that the light emitting display mechanisms are adjacent to each other, the on and off operations will be opposite up and down, and there will be inconvenience such as inconsistency. A switch body will be provided, and it will be a dedicated type.

Since the light emitting display mechanism of the switch main body and the display window of the operation handle are directly opposed to each other, a predetermined display can be performed when the operation handle is attached to the switch main body.
However, this has a problem that a dedicated switch main body must be used for upper and lower parts, as described above.

In Japanese Utility Model Laid-Open No. 61-29418, the operating body cannot be made larger than the outer diameter of the switch body and cannot be mounted on the mounting frame simply by having the guide member.

The present invention has been made in view of the above circumstances, and in a switch device using an operating body with a large operation surface, even if a plurality of switch bodies provided with display elements are used in series, An object of the present invention is to provide a switch device that can be shared, and can display accurately at the central portion of the corresponding operating body, and can also share the operating body.

[Structure of Invention]

(Means for Solving the Problems) The present invention provides a mounting frame having an elongated instrument mounting hole in an intermediate portion; each has an operating portion on the front surface, and is displayed at a substantially central portion of the front surface in the longitudinal direction of the instrument mounting hole. A plurality of switch main bodies each having an element and mounted in an instrument mounting hole of a mounting frame; each having an outer diameter dimension larger than an outer diameter dimension of the switch body, and having a substantially central portion in a longitudinal direction of the instrument mounting hole And a guide member having a display window on the back side and having a light guiding section that faces the display window and a light guiding section that guides light from the display element of the switch body to the light guiding section, and
A plurality of operating bodies mounted on each switch body, each block body having a blocking portion for blocking mounting on the switch body at a position where the light guide portion of the guide member does not face the display element of the switch body; And a plate which has a window hole through which a body can be exposed and which is arranged in front of a mounting frame.

(Operation) According to the present invention, a plurality of switch bodies formed by facing a display element for displaying either one or both of ON and OFF on a substantially central portion of the front surface in the longitudinal direction of the window of the mounting frame are mounted on the mounting frame. In this case, since the operating body is formed to have a diameter larger than that of the switch main body, the shared operating body may be attached while being offset from the operating portion of the switch main body. However, the operating body is provided with a display window substantially in the center of the front surface in the longitudinal direction of the window hole of the mounting frame, and guides light from the light guiding portion facing the display window and the display element of the switch body to the light guiding portion. By providing a guide member having a light guide section and forming the light guide section of the guide member so as to face each display element when the operating body is mounted on the operation section of the switch body, the display window can be displayed. The display is surely made even at a position not facing the.

The operation body is provided with a blocking portion that prevents the light guide portion of the guide member from being attached to the switch body at a position where the light guide portion of the guide body does not face the display element of the switch body. Even if the operation body of the switch main body located at is deviated with respect to the switch main body, it is possible to share each switch without hindering the operation.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 to 10.
Reference numeral 1 denotes a mounting frame, which is made of, for example, a synthetic resin, has an elongated instrument mounting hole 2 in the middle portion, and has mounting portions 5 of a wiring box 4 embedded in a wall surface 3 of a construction or the like at both ends.
5 are provided with paired mounting holes 6 and 6 having a pitch capable of mounting, and plate mounting holes 7 and 7. The attachment frame 1 is elastically engaged with an engaging hole 8 that engages with one side of the instrument mounting hole 2 and a projecting piece that projects from one side of the instrument, and a projecting piece that projects from the other side of the instrument. There are provided three sets of device fixing means 10 formed with the locking holes 9.

The mounting frame 1 is generally called a one-touch support, but may be made of metal.

Reference numeral 11 denotes a switch main body, and the switch main body 11 has a swingable pair of operating portions 12 on the front surface thereof, and display elements 23, 24 are provided substantially in the center of the front surface in the longitudinal direction of the instrument mounting hole 2. , Is attached to the instrument mounting hole 2 of the mounting frame 1. In this embodiment, three switch bodies 11 are connected in series.

There are various types of on / off operations for the switch main body 11, but any type that operates the operating portion of the switch main body 11 may be used, and in the present embodiment, it is a swing type.

Details of the switch body 11 of this embodiment will be described with reference to FIGS. 8 and 9. The switch body 11 is a case 13 made of a synthetic resin in a box shape, and fixed contacts provided in the case 13.
Movable contact 16 that comes in contact with and separates from terminal portion 15 having 14 and fixed contact 14
A movable piece (17) having a spring, a movable handle (20) connected to the movable piece (17) via a spring (18) and having a leaf spring (19) and forming an operating section (12), a movable contact (16), and a terminal section (15). Locking piece 21, a release button 22 for releasing engagement of an electric wire connected to the locking piece 21, a printed circuit board 25 to which a neon lamp 23 as a display element and a light emitting diode 24 are connected, a current transformer 26, and an operating portion 12. Having a pair of holes 27, 27 facing each other, and a neon lamp 23 as a display element and a light-emitting diode in the front surface substantially in the center in the longitudinal direction of the instrument mounting hole 2.
A cover 29 having holes 28 facing the 24 and attached to the case 13 and a projecting piece engaging with the engaging hole 8 and the locking hole 9 of the mounting frame 1.
Mounting bracket 3 having 30,30 for fixing the case 13 and the cover 29 together
It is formed including 1.

Then, the cover 29 has a mountain-shaped shaft portion 32 at a substantially central portion in the short direction.
And holes 28, 28 are provided in both inclined surfaces of the shaft portion 32.

In the switch body 11 according to the present embodiment, the display element is turned on in any of the on and off states according to the detection signal of the current transformer 26, and the neon lamp 23 and the light emitting diode 24 of the display element display according to the difference in light color. Is formed in.

Reference numeral 33 denotes a plate, and the plate 33 has an elongated window hole 34 facing the instrument mounting hole 2 of the mounting frame 1 and a protrusion (not shown) fitted into the plate mounting holes 7, 7 of the mounting frame 1. Is provided
It is arranged in front of the mounting frame 1. This plate 33 has an opening 35 in this embodiment, and a recess is formed in the periphery of the opening 35.
It is formed by including a base portion 37 having a 36 formed therein, and a decorative frame portion 38 that is detachably fitted into the concave portion 36 of the base portion 37.

In addition, in this embodiment, the window hole 34 is formed in the decorative frame portion 38.

39 is an operating body, and this operating body 39 is the operating portion of the switch body 11.
12 is attached to the plate 12 and faces the window hole 34 of the plate 33.
Is formed so as to close the.

That is, the plate 33 has a window hole 34 through which the operating body 39 can be exposed and is formed in front of the mounting frame 1.

Further, three operation bodies 39 are provided corresponding to each switch body 11, and each is formed with an outer diameter dimension larger than the outer diameter dimension of the switch body 11.

Each operating body 39 is provided with a peripheral wall 40 and a pair of fitting pieces 41 which are fitted to the operating portion 12 of the switch body 11 are provided on the back surface. The fitting piece 41 has one end joined to one peripheral wall 40 and the other end separated from the other peripheral wall 40, and the fitting piece on the other end side.
A ridge blocking portion 42 is formed between 41.

Then, the fitting piece 41 is elastically fitted and attached to the leaf spring 19 provided on the rising portion 50 of the operating portion 12 and the holding portion 43 of the leaf spring 19 provided upright on the cover 29 and having the concave groove 51. Thus, two pairs of protrusions 52, 52 for positioning are provided on the outer side. Further, the blocking portion 42 is formed so as to prevent the light guide portion 46 of the guide member 47, which will be described later, from being mounted on the switch body 11 at a position where it does not face the display blocking 23, 24 of the switch body 11.

That is, when the operating body 39 is attached to the switch body, the blocking portion 42 is provided with the peripheral walls 40 located at both ends together with the switch body 11.
It can be formed in such a size as to come into contact with the shaft portion 32.

Then, in the present embodiment, the operating body used for three
When mounting the switch body 11 mounted on the intermediate portion of the mounting frame 1 with the fitting piece 41 on the operation portion 12, one of the positioning projections 52 is on the recessed groove 51 of the holding portion 43 from any direction. By fitting and mounting, one of the blocking portion 42 and the peripheral wall portion 40 comes into contact with the shaft portion 32, and the swing operation becomes possible. Also,
In this embodiment, when it is mounted on the switch body 11 located at the lower part of the mounting frame 1, the operating body 39 in FIG. By fitting the other one into the concave groove 51 of the holding portion 43 and mounting it on the operation portion 12, the blocking portion 42 and the peripheral wall 40 positioned above contact the shaft portion 32, and the swing operation becomes possible.

Further, in the present embodiment, when the blocking portion 42 is mounted on the switch body 11 located above the mounting frame 1, the blocking portion 42 is mounted on the operation portion 12 in the orientation shown in FIG.
Further, the peripheral wall 40 located at the lower part comes into contact with the shaft portion 32, and the rocking operation becomes possible.

Reference numeral 44 denotes a display window provided at a substantially central portion in the longitudinal direction of the instrument mounting hole 2 of the mounting frame 1 of the operation body 39. The display window 44 is a front surface in the longitudinal direction of the instrument mounting hole 2 of the mounting frame 1 of the switch body 11. Neon lamp 23 as a display element provided in the approximate center
And guiding light from the light emitting diode 24,
The display element is formed so as to display either one or both of ON and OFF. In this embodiment, the display element lights up in both the ON and OFF states, and the neon lamp 23 of the display element is displayed.
And the light emitting diode 24 is formed to display depending on the difference in light color.

Then, a plurality of switch bodies 11, three in this embodiment, are used.
In the case of individually connected switches, the switch body 11 located in the middle
The operating body 39 can position the display window 44 so as to face the display elements 23 and 24, but for the switch body 11 located at both ends, the display window 44 of the operating pair 39 can display the display element 23. It is difficult to display because the position does not face directly with 24 and 24.

Therefore, the operating body 39 in the case where a plurality of switch bodies 11 are connected in series is a light guiding portion facing the display window 44 provided in the substantially central portion.
A guide member 47 having a lead-out portion 46 for guiding light from the display elements 23 and 24 of the switch body 11 to the light lead-out portion 45 is provided. The guide member 47 is, for example, as shown in FIG. 10, a light guiding portion 45 and a light guiding portion 45 which is continuous with the light guiding portion 45.
And a first light guide portion 46a formed by being inclined at about 45 ° for guiding the light of the display elements 23, 24 in a substantially opposite position to the light guide portion 45 and continuous to the first light guide portion 46a. Then, the display device 23, 24 is opposed to the light derivation part 45 and the display device 23, 24 which is not in a facing position.
A second light guide portion 46b is formed which has an inclined surface of about 45 ° which guides and reflects light from the light source and reflects it by the first light guide portion 46a to guide it to the light guide portion 45. It is formed of a lens body including it.

The outer surface of the light guiding portion 45 may be formed as a diffusing surface by forming a plurality of grooves.

The guide member 47 has mounting holes 48 at both ends, and is fixed to the back surface of the operating body 39 by caulking or the like. Then, in the present embodiment, three switch bodies 11 are connected in series and configured for three, and by mounting the operating bodies 39 on the operating portions 12 of the respective switch bodies 11, the mounting frame 1 Of the switch body 11 located on both end sides of the switch, that is, on the upper and lower sides in this embodiment
Although the display elements 23 and 24 of FIG. 4 and the operation window 44 are not directly facing each other, the second light guide portion 46b of the guide member 47 has the respective display elements 23 and 24.
Since the light is emitted from the display elements 23 and 24, the light from the display elements 23 and 24 is introduced from the second light guide section 46b and the first light guide section 46b.
The light is reflected by the inclined surface of and is led out from the light guide portion 45, and the display is surely performed.

Further, in the switch body 11 arranged in the middle portion of the mounting frame 1, the display elements 23 and 24 and the display window 44 of the operating body 39 substantially face each other, so that the light incident from the first light guide portion 46a is light. The lead-out section 45 emits light.

Then, the operation body 39 guides light at the position where the light guide portion 46 of the guide member 47 does not face the display elements 23 and 24 of the switch body 11, that is, in the switch body 11 above and below the mounting frame 1 in this embodiment. If the display element 23, 24 is mounted in such a direction that the display elements 23, 24 do not face each other even when the portion 46 faces in the opposite direction, the blocking portion 42 abuts on the rising portion of the operation portion 12 as shown in FIG. Attachment to the operation unit 12 is prevented.

Therefore, at this time, as shown in FIG. 6, by mounting it on the operation portion 12 of the switch body 11 in the reverse direction,
The light lead-out portion 46 faces the display elements 23 and 24 of the switch body 11 to perform display.

In this way, the operating body 39 can be used as a single type for both the intermediate portion of the mounting frame 1 and the switch main body 11 arranged at both end portions, and can be made versatile. Moreover, since the operation body 39 is prevented from being attached to the switch body 11 at the position where the light guiding portion 46 of the guide member 47 does not face the display elements 23 and 24 of the switch body 11, the operation body 39 is attached in the opposite direction. , The inconvenience that it cannot be displayed is solved.

Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited thereto. For example, two or four switch bodies are connected in series, an operating body having a diameter larger than that of the switch body is provided, and a blocking portion is provided in a case where the display window of the operating body is not directly facing the display element of the switch body. Good.
Further, as for the relationship between the blocking portion and the operating portion of the switch body, other known reverse assembly preventing means may be applied.

〔The invention's effect〕

As described above in detail, the present invention has a plurality of switch bodies provided with display elements and an operation surface having a diameter larger than that of the switch body provided with a display window substantially in the center of the front surface in the longitudinal direction of the instrument mounting holes of the mounting frame. In a switch device including a switch composed of a plurality of operating bodies having a large size, a guide member having a light guiding portion facing the display window to the operating body and a light guiding portion for guiding light from the display element of the switch body. And
Since the blocking part is provided to prevent the light guide part of the guide member from being attached to the switch body at a position where it does not face the display element of the switch body, the operating body is made larger than the switch body to improve operability. In such a case, even if the operating body of the switch body in which the instrument mounting hole is located is deviated from the switch body, the switch bodies can be shared without any hindrance to the operation.

Further, the operation body is prevented from being attached to the switch body in the opposite direction, and the light guide portion of the guide member and the display element can be opposed to each other to perform accurate display.

[Brief description of drawings]

1 to 10 show one embodiment of the present invention, FIG. 1 is a partial sectional side view showing a use state, FIG. 2 is an exploded perspective view, and FIG. 3 is an enlarged sectional view of an essential part. , FIG. 4 is a rear view of the operating body, FIG. 5 is a perspective view of the same, FIG. 6 and FIG. 7 are sectional side views showing a state in which the operating body is mounted on the switch body, and FIG. 8 is an exploded view of the switch body. FIG. 9 is a partially cutaway perspective view showing the operating body and the switch body separately, and FIG. 10 is a sectional view of the guide member. 1 …… Mounting frame, 2 …… Device mounting hole, 11 …… Switch body, 12
...... Operating part, 23,24 …… Display element, 39 …… Operating body, 33 …… Plate, 47 …… Guide member, 44 …… Display window, 42 …… Blocking part

Claims (1)

[Claims] 1. An attachment frame having an elongated instrument attachment hole in an intermediate portion; and an attachment frame having an operation portion on the front surface and a display element substantially at the center in the longitudinal direction of the instrument attachment hole. A plurality of switch bodies mounted in the mounting holes; each having an outer diameter dimension larger than the outer diameter dimension of the switch body, and having a display window substantially in the center in the longitudinal direction of the instrument mounting hole and on the back side The light guide part has a light guide part that faces the display window and a light guide part that guides light from the display element of the switch body to the light guide part, and the light guide part of the guide member is the switch body. A plurality of operating bodies mounted on each switch body, which has a blocking portion for blocking mounting on the switch body at a position not facing the display element; and a window hole through which each operating body can be exposed Play placed in front of the mounting frame Switch device characterized in that it comprises a; If.