JPH0229641Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improved small two-color illuminated switch, and more specifically to a switch that operates a movable handle equipped with an illuminating body. In a type of switch that opens and closes contacts and an illumination circuit, when operating the converter for opening and closing the main contact provided at the end of the movable handle, it has two lead wires and converts the conductivity to two colors. It is possible to alternately illuminate the light emitter in two colors by using a single light emitter that can provide 200% of illumination, and moreover, the lead wires, contacts, and fixed contact pieces for the illumination circuit can be placed within the allowable space of the switch housing. Improved two-color illumination that is rationally arranged in the switch housing, makes extremely effective use of the limited space inside the switch housing, and makes the entire switch equipped with the illumination circuit smaller and simpler. This relates to small type switches.

[Prior art]

Hitherto, as a two-color illumination type switch, a switch as seen in, for example, Japanese Utility Model Application Publication No. 55-56719 has been proposed.

[The problem that the idea attempts to solve]

However, in such conventional devices, at least three lead wires are required for the light emitting body, which increases the size of each part, making the switch large and inconvenient to handle, and is also disadvantageous in terms of manufacturing cost. It was the economy.

The purpose of the present invention is to provide a two-color illuminated small switch that overcomes the above-mentioned drawbacks, and which converts the conducting polarity when operating the main contact opening/closing converter provided at the end of the movable handle. This makes it possible to alternately illuminate the light emitter in two colors using only two lead wires using a single light emitter, which can provide two-color illumination. Improvements in which the fixed contact piece and fixed contact piece are arranged rationally within the allowable space of the switch housing, the limited volume within the switch housing is utilized extremely effectively, and the entire switch is made smaller and simpler. The purpose of the present invention is to provide a two-color illuminated small switch.

Another purpose of the present invention is that it is not only economically advantageous since it does not require a separate contact point for converting the polarity of the illumination emitter, but also makes wiring from an external power source to the switch terminal complicated. The diameter of the hollow part of the movable handle is extremely simple, and by using a light emitting body with two lead wires as a light emitting body, compared to, for example, a light emitting body using three or more lead wires, the diameter of the hollow part of the movable handle can be reduced. An object of the present invention is to provide a two-color illumination type small switch which can be made smaller and the handle itself can be made thinner accordingly, which makes it easier to downsize the switch.

[Means to solve the problem]

The present invention consists of a light emitting body that has two lead wires and is disposed at one end of a movable handle, and whose color changes through forward/reverse conversion of conducting polarity, and a main contact that can be opened/closed by operating the movable handle. In order to do this, a converter provided at the other end of the movable handle, three fixed terminals for the light emitter provided on the switch housing, and a tilting of the movable handle correct the polarity of the conduction to the light emitter. A conversion switch is provided between the fixed terminal and the converter for reverse conversion, and the conversion switch includes a conductive coil spring inserted into a pair of hollow portions formed in the converter. two contacts that respectively energize the two lead wires through the
three fixed contact pieces respectively communicating with the three fixed terminals and selectively contacting the contact pieces, and when the movable handle is in one tilted position, one of the contact pieces When the fixed contact piece in the center is in contact with the other contact piece and the other fixed contact piece is in contact with each other, and when the movable handle is in the other tilted position, one of the contact pieces and the remaining contact piece are in contact with each other. A two-color illumination type small switch, characterized in that the contactor and the fixed contact piece are arranged so that the other contact piece and the center fixed contact piece are in contact with each other, respectively. .

〔Example〕

Embodiments of the present invention will be described with reference to the drawings.

In the embodiments shown below, the movable handle,
In particular, the lower handle is constructed separately from the converter, but this is done in consideration of convenience in manufacturing and assembly, and there is no doubt that the two can be integrally molded.

Further, although these embodiments show examples of paddle switches, the present invention is not necessarily limited to this, and it is possible to use a toggle switch, a waveform switch, or a slide switch.

Furthermore, although a rectangular light emitting body is used for two-color illumination in these embodiments, it is possible to select a desired shape such as a round shape.

The present invention will now be described in conjunction with preferred embodiments shown in the accompanying drawings.

FIG. 1 is a schematic cross-sectional view of a switch according to the present invention, and FIG. 2 is an exploded perspective view of the main parts thereof. In these figures, reference numeral 1 has an open end surface 1a;
A central partition wall 1b (shown in the fourth diagram) of a predetermined height is provided.
The housing for storing the switch body is shown. On the open end surface 1a of this housing 1,
A cover 2 and a mounting plate 23 are provided as coverments that substantially cover the housing 1, and a sleeve 3 is provided to cover the cover 2 and the mounting plate 23, respectively.

The cover 2 has hanging pieces 2a (second
It is fixed to the housing 1 by bending and caulking the claw piece 2b at the lower end of the figure into a corresponding recess (not shown) in the housing 1. Also, the mounting plate 23 is attached to the bottom plate 2.
3a, an upright piece 23c that is bent upward at right angles from both left and right ends, a flange 23b that is bent outward from each of its upper ends, and an upright piece that is further bent upward at right angles from both front and rear ends. 23d. Tsuba 23b
is the member used to attach this switch to the panel. The base plate 3a of the sleeve 3 is placed on the bottom plate 23a of the mounting plate 23, and the projecting piece 3b protruding downward from the base plate 3a is attached to the bottom plate 23a of the mounting plate 23.
The lower end portion thereof is bent and caulked by passing through each hole (not shown) provided in the bottom plate 23a and the cover 2. Thereby, the sleeve 3 is fixed to the cover 2 together with the mounting plate 23.

A movable handle 4, which is a switch operator, is provided between the left and right upright pieces 23c, 23c of the mounting plate 23 so as to be tiltable left and right. That is, the movable handle 4 disposed inside the housing 1 and protruding from the upper end surface 3c of the sleeve 3 has a cylindrical lower handle 4B having a hollow portion 4h and an upper end of the lower handle 4B. 4B and an upper handle 4A that is operatively connected to the upper handle 4B. Further, short shafts 4k, 4k are provided at the center of the lower part of the front and rear surfaces of the upper handle 4A.
(Fig. 2) are provided in a protruding manner, and a shaft bearing hole 23e in the upper part of the upright piece portions 23d, 23d on the front and rear sides of the mounting plate 23,
A shaft 4k is inserted through and supported by 23e. As shown in FIG. 1, a rolling pin portion 4a formed approximately at the center of the lower handle 4B is attached to a rolling pin receiving portion 3d provided on the upper inner wall surface of the sleeve 3, and a coil spring 8 (shown in the second drawing) to be described later. As a result, the handle 4 is tilted smoothly from side to side in the figure using the pivot receiving portion 3d as a fulcrum.

The upper end of a converter 5 is fixed to the lower end of the movable handle 4, and a through hole 5a (FIG. 3) for guiding a lead wire, which will be described later, is formed approximately in the center of the converter 5.
At one side 5A of the side wall surfaces parallel to the tilting direction of the handle 4, a guide groove 5h (see FIG. 3), which will be described later, is connected to the through hole 5a, which will be described later. A pair of cutout portions 5b and 5c for mounting a contactor is further provided at one end in the longitudinal direction of the central portion of the lower surface of the converter 5 (on the opposite side of the contactor).
Hollowouts 5d for mounting sliders, which will be described later, are provided nearby.

The converter 5 and the handle 4 are connected to each other by fitting the lower end of the handle 4 into a through hole 5a (FIG. 3) provided in the center of the converter 5. Therefore, the converter 5 can be similarly swung left and right by manual operation of tilting the handle 4 left and right in FIG.
A slider 9 is inserted into the hollow 5d formed on the lower surface of the converter 5 through a coil spring 8.
The slider 9 is inserted and held so as to protrude from the end face of the converter 5, and is elastically abutted against a movable contact piece 10 so as to open and close the main contact, as will be described later. That is, as shown in FIG. 4, a main contact is provided in a half section partitioned by a central partition wall 1b provided in the housing 1, and a pair of ears 10a of the movable contact piece 10 forming the main contact is housing 1
A pair of support walls 1e, 1e provided to protrude inward
The lower center portion of the movable contact piece 10 is in contact with a terminal 12 provided through the bottom wall of the housing 1 . In this way, the movable contact piece 10
is supported so as to be tiltable with the terminal 12 as a fulcrum so that it can selectively abut the fixed contact piece/terminal 11 or 13 provided through the bottom wall of the housing 1 in the same manner as the terminal 12. On the other hand, the slider 9 is placed on its upper surface while being pressed against it by a coil spring 8, as shown in FIG. The upward reaction force of the coil spring 8 presses the rolling pin portion 4a of the handle 4 against the rolling pin receiving portion 3d on the inner wall surface of the sleeve 3 via the converter 5.

Further, the pair of hollows 5b and 5c formed in one end surface 5A of the converter 5 has a contactor 1.
5b and 15c are also conductive coil springs 14
b, 14c, the contactor is inserted and held so as to protrude from the side end surface 5A of the converter 5, and as described later, this contactor has three fixed contact pieces 16, 17, 18 so as to open and close the illumination circuit. make sliding contact with.

A light emitting body such as a lamp or a light emitting diode is disposed at the inner upper end of the center knob 4m of the upper handle 4A constituting the movable handle 4, and the light emitting body 6 is
Two pin-shaped terminals 6a, 6 protrude downward on the bottom surface.
It has b. The upward radiation of the light emitter 6 is
It is formed from the upper end surface (4)c of the upper handle 4A of the handle 4. Two lead wires 7A, 7B electrically lead out the terminals 6a, 6b directly connected to the light emitting body 6 to the fixed terminals 19, 20, 21 for the light emitting body below. It descends through the entire length of the shaped part and reaches the converter 5. The two lead wires 7A and 7B that have reached the converter 5 have their lower ends inserted downward into the through hole 5a provided in the converter 5, and then
The exposed tip portions 7a and 7b are bent through the respective guide grooves 5h, and the side end surface 5A of the converter 5 is bent.
The contact 15b is connected to one end of conductive coil springs 14b and 14c inserted in the hollows 5b and 5c, respectively, and the contact 15b is energized to the lead wire 7A via the conductive coil spring 14b, and the contact The child 15c energizes the lead wire 7B via the conductive coil spring 14c (see FIG. 3). In addition, the rear surface of the converter 5 of the conductive coil springs 14b and 14c (the side end surface opposite to the side end surface 5A)
The reaction force in the direction supports the converter 5 together with the coil spring 8 of the slider 9 in a well-balanced and stable state within the housing 1, and thereby the movable handle 4
ensures smooth operation.

Note that a conduction plate having a U-shaped cross section or the like may be interposed at the connection between the lead wire 7 and the conductive coil spring 14, and in this case, electrical contact can be made more accurately.

Three fixed contact pieces 16, 17, 18 of similar shape are attached along the inner wall surface of the housing 1 so that the contacts 15b, 15c selectively come into contact with each other. As shown in Figure 4,
For example, the fixed contact piece 16 is formed into a structure as shown in the figure, including a vertical piece 16a, a horizontal piece 16b, and a rectangular hole 16c. A light emitter fixed terminal 19 having a shape substantially similar to the terminal 12 is inserted into the rectangular hole 16c from above, and the fixed terminal 19 penetrates the bottom wall of the housing 1 and is fixed thereto. Fixed terminals 20 and 21 are respectively inserted into the other fixed contact pieces 17 and 18 from above in the same manner as described above, and these fixed terminals 20 and 21 pass through the bottom wall of the housing 1 and are fixed thereto. Thus, the fixed contact piece 16
is attached to the fixed terminal 19, and the fixed contact piece 17 is attached to the fixed terminal 20.
In addition, the fixed contact pieces 18 are connected to the fixed terminals 21, respectively. In this embodiment, the contacts 15c and 15c are arranged so that the polarity of the light-emitting body 6 is changed at the left and right tilted positions of the movable handle 4.
The arrangement of the fixed contact pieces 16, 17, and 18 is selected. That is, when the movable handle 4 is tilted to the right as shown in FIG.
However, the other contact 15c and the central fixed contact piece 17
When the movable handle 4 is tilted to the left, the contact 15b and the fixed contact piece 17 in the center are brought into sliding contact, and the other contact 15c and the fixed contact piece 18 are brought into sliding contact with each other. Contact 1 to make sliding contact, respectively.
5 and the fixed contact pieces 16, 17, 18 are selected. Therefore, it becomes possible to change the conducting polarity of the light emitter 6 by operating the handle 4. That is, the contacts 15c, 15c and the fixed contact pieces 16, 17, 18
This constitutes a conversion switch capable of converting the polarity of the light-emitting element 6 between forward and reverse directions by tilting the handle 4.

By tilting the handle 4 and changing the conductivity of the two-color light emitting body having two lead wires as shown in FIG. Illumination can be easily obtained. That is, as shown in FIG. 6, when a current flows through the light emitter in the _F1 direction, it becomes illuminated in red, for example, and
When a current flows in the _F2 direction, illumination of colors other than red, such as green, is achieved, resulting in two-color illumination depending on the tilted state of the handle. Reference numeral 40 represents a power source, and reference numeral 50 represents a resistor that controls the current flowing through the light emitter.

In the above embodiment, the contactor is provided on the side end surface of the converter, and the corresponding fixed contact piece is provided on the inner wall surface of the switch body. Fig. 7 shows another embodiment of the present invention. shows. In this embodiment, two contacts 35b and 35b are used as elements constituting the conversion switch.
35c is provided on the lower surface of the converter, and the three fixed contact pieces 3
6, 37, 38 are fixed terminals 39, 40,
41 and provided on the inner bottom surface of the switch body. In this embodiment, substantially equal upward reaction forces of the coil spring 8 for the slider and the two conductive coil springs 34b and 34c for the contacts are applied to the handle 24 via the converter 25. By pressing the switching point against the switching point receiving section on the inner wall surface of the sleeve, the converter can swing even more smoothly.

[Effect of idea]

The present invention is constructed as described above and operates as described above, using one light emitting body that can obtain two-color illumination by changing the conductivity.
This makes it possible to alternately illuminate the light emitter in two colors using only two lead wires, and the diameter of the hollow part of the movable handle can be reduced compared to, for example, a light emitter with three or more lead wires. The switch can be made smaller, and the handle itself can also be made smaller, making it easier to downsize the switch. In addition, the lead wires, contacts, and fixed contact pieces for the lighting circuit are arranged rationally within the allowable space of the switch housing, making the limited space inside the switch housing extremely effective, and reducing the overall size of the switch. It also contributes to the formation of cylindrical elements, does not require separate contacts for opening and closing the light emitter, and is extremely advantageous economically.

In addition, the connection from the external power source to the switch terminal is not complicated and is extremely simple.

[Brief explanation of the drawing]

FIG. 1 is a schematic cross-sectional view of a two-color illuminated small switch according to the present invention, FIG. 2 is an exploded perspective view of the main components, and FIG. 3 is a partial cross-sectional view showing the internal mechanism of the switch. Figure 4 is a plan view showing the inside of the switch body, Figure 5 is a diagram explaining the principle of the two-color illumination emitter of the present invention, and Figure 6 is a diagram showing the switch of the present invention in use when connected to a power source. The diagram showing the circuit, Figure 7, is
FIG. 3 is a schematic cross-sectional view showing another embodiment of the two-color illumination type small switch according to the present invention. 1... Switch housing, 4, 24... Movable handle, 4A... Upper handle, 4B... Lower handle,
5, 25... converter, 6... luminous body, 7A, 7B
...Lead wire, 15b, 15c, 35b, 35c
... Contact, 16, 17, 18, 36, 37, 3
8... Fixed contact piece, 19, 20, 21, 39, 4
0,41...Fixed terminal.

Claims (1)

[Claims for Utility Model Registration] (1) A light-emitting body having two lead wires and disposed at one end of a movable handle, the color of which changes by forward/reverse conversion of conducting polarity; and the movable handle. a converter provided at the other end of the movable handle in order to open and close the main contact by the operation; three fixed terminals for the light emitter provided on the switch housing; a conversion switch provided between the fixed terminal and the converter in order to convert the polarity of the current to the converter into a forward or reverse direction, and the conversion switch is inserted into a pair of hollow portions formed in the converter. two contacts that respectively energize the two lead wires through conductive coil springs, and three contacts that respectively communicate with the three fixed terminals and selectively contact the contacts. and a fixed contact piece, and when the movable handle is in one tilted position, one of the contacts and the central fixed contact piece are also connected to the other contact piece and the other fixed contact piece. are in contact with each other, and when the movable handle is in the other tilted position, one of the contacts and the remaining fixed contact piece are in contact with each other, and the other contact member and the center fixed contact piece are in contact with each other. A two-color illumination type small switch, characterized in that the above-mentioned contactor and fixed contact piece are arranged. (2) A two-color illuminated small switch according to claim 1, wherein the movable handle and the converter are integrated into a continuous unit. (3) The handle is composed of an upper handle that locks the light emitter and a cylindrical lower handle that has a hollow part that guides the lead wire of the light emitter to the converter, and the lower handle is interlocked with the upper handle. A two-color illuminated small switch according to claim 2 of the registered utility model, which is possibly connected to each other. (4) The contactor is disposed on a side end surface of the converter in a direction parallel to the tilting direction of the handle, while the three fixed contact pieces are attached along an inner wall surface of the switch housing. A two-color illuminated small switch according to claim 2 of the utility model registration claim. (5) The utility model registration claim 2, wherein the contactor is disposed on the lower surface of the converter, and the three fixed contact pieces are disposed on the inner bottom surface of the switch housing. Color-illuminated small switch.