JPS58131613A - Illumination type pushbutton switch - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an illuminated push button switch in which a light emitting diode is lit inside the translucent push button to indicate the oscillation off status, etc. This figure shows the structure of a conventional illuminated pushbutton switch. There is an incandescent lamp inside the transparent or semi-transparent push button (1).
(s) The incandescent lamp is held by the electrode (4) (11) and is turned on by the voltage supplied from the lamp terminal (＠l f d+). .The push button (1) is connected to the switch mechanism section (
・)K line up and press button (1) to suppress)
The terminals (tot) (tow) (10m) are designed so that the on/off state can be switched between them. In such an illuminated pushbutton switch, remove the incandescent lamp (11 is cut out, first remove the pushbutton (1) from the switch body (1K)), and point the grip of the lamp base (1) in the direction indicated by the arrow AK. The elastic fIR shape is applied to the lamp to release the engagement between the locking center piece and the locking step →, and the lamp fabric J (S) is centered around the shaft fitted to the pivot part α. Move the upper K (I), remove the incandescent lamp (with 11) and replace the incandescent lamp (with 11).

The lamp book 4(s) can be stored in the switch body (Kawauchi) again. However, it is a hassle to set up a replacement set for such an incandescent lamp (replacement), so It is strongly desired to use a long-life light-emitting diode as the illumination means.However, when using a light-emitting diode, it is necessary to connect a current limiting resistor of an appropriate value in series. However, there is a problem that assembly becomes difficult.

The present invention has been made to solve these problems of the conventional example, and it is an object of the present invention to provide an illuminated push button switch that uses a light emitting diode as a light source and is equipped with an illumination unit that is difficult to assemble and replace. This is the purpose.

The structure of the present invention will be explained below with reference to illustrated embodiments. 11
This shows the appearance of the 1111KII & black light type push button switch published by Zusha Honsha), switch body (1K)
A transparent or translucent push button (S) is attached to the top of the switch so that it can move up and down.The movement of the push button (1) is transmitted to the switch mechanism section (11K) via the leg piece (8),
) Terminal (lot) that can be brought out in the center - (IQg)
The on/off state can be switched. (−
) (Ma) This is an expanding amplifier terminal, which supplies point q voltage to the illumination unit I via the electrode (4) (1). Sanhaku is a display filter, and is made of a translucent plastic plate that can be freely engraved with characters and symbols. Further, the holder is an elastic mounting spring, which is attached to the lower part of the 7 lunge, and is used when the switch body (-) is installed in the panel of the device and is fitted and fixed into the opening.

Next, Figure I shows the structure of the illumination unit (1'6), and the holding frame (B) has a shaft part that fits into the pivot part of the switch body (11). , a locking piece is provided which is engaged with the locking stepped portion I. (2) is a support piece for supporting both sides of the shaft portion α, and the fist is not engaged. This is a gripping piece that is used to release the engagement between the stop center piece ll field and the locking step repair ◆. This center plate is press-fitted into a rectangular engagement hole 6!IIIK formed on the resistor base 4. 9 conductive parts (get) (118m) (
24b), and one end of each conductive part (!L) (H Xi!a
Printed resistance II (!γ1) (!71) (!m) connected to
γ,) and each printed resistance part (!7r) (!γ*Xgys)
Conductive part-1 and holding frame I whose other ends are connected to each other by K11l! A round conductive part is formed by soldering one lead of the light emitting diode 4 mounted on the upper surface of the light emitting diode. The other lead I11@ of the light emitting diode is separated from each other and has a conductive part (HItX!@□) (01)
It is soldered to the conductive part (26g) in the center. The resistance value of each printed resistance section (tytXiy□) (27m) is different depending on the voltage (usually sv, 12v%uv, etc.) applied between 1 resistor is connected in series with the light emitting diode. Next, there is a terminal plate, and the conductive portion of the resistor board is soldered to this terminal plate. In addition, this terminal board has a terminal part (goods) that contacts the electrode (6) and a press-fit piece that is press-fitted into the holding frame UK.
It has One lead of the light emitting diode (4) is in contact with the electrode (4)K as shown in the 11g exposure diagram)
When a suitable lighting voltage is applied between the lamp terminals 1 and 1, the current limited by the printed resistor (!f*) flows to the light emitting diode and the light emitting diode lights up. For something. In addition, even if the voltage applied to the lamp terminals (. - It is possible to supply an appropriate lighting current to the

A notch (Us)^(liem) is formed in the holding frame for allowing the lead to pass through.

The zero switch is constructed as described above, and is engaged and fixed to the upper inner wall surface of the switch body by means of an illuminated push button switch K, which is formed by disposing a transparent or translucent push button lower part Kjll1 unit. A holding frame, a resistor board with an engagement hole press-fitted into the central boss located east of the holding frame, a mark on the resistor board, and a light emitting diode with one lead wire connected to one end of the sub-resistance part. This structure constitutes an illumination unit, and a pair of electrodes are provided inside the switch body, which make contact with the other end of the printed resistor and the other lead wire of the light emitting diode, respectively, so it has a relatively short life as an illumination means. A long light emitting diode can be used, and by simply press-fitting the retaining hole of the resistor board into the protruding boss of the holding frame, the resistor can be added to the lighting unit and combined with the light emitting diode into one unit. This has the advantage that the lighting unit is easy to assemble and replace, and can be replaced with a similar lighting unit if necessary.

As described in the explanation of the embodiment of the present invention @, if a plurality of printed resistor parts with different resistance values are provided on the resistor substrate, the limit of the light emitting diode can be adjusted according to the lighting voltage applied to the lamp terminal. This is very convenient because the flow resistance value can be set to an appropriate value.

[Brief explanation of the drawing]

Figure 4M2 is a partially cutaway side view of an illuminated pushbutton switch according to an embodiment of the present invention, Figure 8 is an exploded side view of the illumination unit used in the same, and Figures 1114 and 5 are the illumination units of the same. FIG. 6 is a side view and a bottom view of the assembled state IIIK, and FIG. 6 is a perspective view of the terminal board used in the same. (1) is a push button, (4) (exposure 1 is an electrode, (11 pieces), (
1) is the switch mechanism, 0) is the switch body, Of
I is a lighting unit, @phantom is a holding frame, - is a boss, (Treasury)
is the resistor board, - is the retention hole, (gyt) # (gym)
is the printed resistance section. Agent Patent Attorney Ishi 1) Chief 7 Figure 2 ll3a 4 Figure 4 116 Figure 4 Procedural amendment (spontaneous) March 23, 1981 Chikaken No. 13631 2 Name of the invention Type pushbutton switch 3, relationship with the case of the person making the amendment ￥# liver Applicant Address 1048 Kadoma, Kadoma City, Osaka Name Name (583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4 Agent postal code 530 J (1.5, date of amendment order 6, number of inventions not increased by amendment 7, description and drawings to be amended 8, correction of bent contents of amendment document Application number: Japanese Patent Application No. 13631/1982) No. 1, the full text of lines 13 to 18 on page 5 of the specification of the present application is corrected as follows: "Any one of the three conductive parts (261) (also 2) (26 m) By this, if any one of the printed resistor parts (27t) (27t) (27m) is connected in series to the light emitting diode 4, it becomes K. However, and each printed resistance section (27,
) (27s) (27g) have different resistance values, and can supply a suitable current to the light emitting diode according to the voltage (usually 5V, 12V; z4v, etc.) applied between the rasp terminals (61+71). 2. In the attached drawings, Figure 3 has been corrected as shown in the attached sheet. Agent Patent Attorney Ishi 1) Choshichi

Claims (1)

[Scope of Claims] (1) A switch mechanism is housed in the lower part of a rectangular cylindrical switch body, and the push button of the transparent beak is attached to the upper opening of the switch body so as to be movable up and down. An illuminated push button switch consisting of a nine-legged piece connected to a switch mechanism and an illumination unit placed under the push button. A holding frame is engaged and fixed to the inner surface of the upper part of the switch body, and an engagement hole is provided in the center of the holding frame and press-fitted into the nine-center boss. One lead is connected to one end of the printed resistor part, and the nine light emitting diodes and K constitute an illumination unit, and a pair of leads are connected to the other end of the printed resistor part and the other lead of the first diode. An illuminated push button switch characterized by an electrode provided inside the switch body. (11) The illuminated push button switch according to item 1 of the patent application, characterized in that a plurality of printed resistor parts having different resistance values are provided on a resistor substrate.