JPS5857221A - 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 that is equipped with a lighting element that illuminates the front end surface of a push-button operation body from the rear.

Conventionally, in this type of switch, the operating body, the illumination element, the contact structure that can be switched in response to the operating body, etc. are all built into a single frame, and the contact structure is entirely the switch part. The structure made it impossible to separate them. One reason for this was that in addition to each contact terminal board, a terminal board for connecting the lighting element to the outside had to be provided, but because of this integrated structure, the shape of the operating body and
Combinations K with switch part types such as the number of poles and opening/closing capacity are unreasonable as each type must be stocked in advance. However, since the wiring work is carried out after the installation, a problem arises in that the panel installation and wiring work cannot be separated.

The present invention has been made in view of these points, and its two purposes are to provide an illumination system that allows the switch unit to be freely separated, thereby simplifying the configuration of each type of product, and facilitating wiring work and repair/inspection. There are K types that provide pushbutton switches.

The present invention will be explained in detail below based on illustrated embodiments. The embodiment shown in Fig. 1 and Fig. 5 is one in which a lighting element 14) is arranged and fixed in a push-button operation type operating body ill that can freely slide back and forth within a cylindrical frame (2). The body has seven lunges at the front end, and the rear end is closed by a back plate.
In addition, a through hole (2) is provided in the center of this back plate, and an elastic piece protrudes from the same side of the rear end. The operating body (3) has a screwdriver (3) and a screen center (3) removably attached to its front surface, and has an illumination element (14) in a recess opened in this curved surface. Lighting element +4
1 is an operating body (3) and a pair of connection terminals (I) fixed to K.
K
It is connected. Further, the operating body ts+ is provided with a protrusion located in the through hole (2) at the center of the rear surface, and the other ends of the connection terminals ti) protrude into a pair of recesses provided on the rear surface. . On the other hand, a pair of recesses are also provided on the back plate @υ side of the frame body (riichi), and a conductive material is placed between the recesses of the frame body (2) and the recesses on the rear surface of the operating body (3). A coil spring (111) is arranged, and the coil spring (11) is in contact with the connection terminal fl.
) is smaller than the width of the connecting terminal (6),
The end of the connecting terminal is press-fitted into the opening at one end of the coil spring (U). Note that this operating body (3) is attached to the frame body (2
), forward withdrawal is prohibited.

(1) is a switch unit, which has locking protrusions on both sides that engage with the retaining holes at the tips of the elastic pieces, respectively, and is configured to be detachable from the frame body (K). .

There is a plunger (1m) and a pair of terminal boards (a
)16) One end protrudes. Both terminal plates Ial are the fourth
As shown in Figure (a), it is fixed by penetrating the switch 1 unit (1) in the front and back, and the other end protrudes rearward. The plunger 031 is fixed at the center of a movable contact plate 04 integrally formed with a reversing spring (1@), and has two pairs of fixed contacts facing the movable contacts at both ends of the movable contact plate 04. A'6 is disposed in the switch unit 11), and the contact is switched by the reversing operation of the movable contact plate 04 by sliding back and forth in response to the operating body +81. Control is a return spring, (1- is a contact terminal plate.

Therefore, the operating body (!1) incorporating the illumination element 14)
is attached together with the coil spring (If) in the frame (2) to form a main body, and the switch unit 1 is attached to this main body.
) is assembled by attaching it. If the switch unit (1) is attached to the rear end of the frame (2) so that its locking protrusion locks into the engagement hole (241) of the elastic piece (to) of the frame (2), the terminal board +61 The front end of telO protrudes into the frame (2) from the recess through the insertion hole - of the back plate Ql) of the frame (2).At this time, as shown in Fig. 5, the diameter d of the coil spring Ql) If the width l of the end of the sumo terminal plate 11 is slightly increased and the operating body (3) is pushed in with the switch unit (1) attached, the coil spring Qt) Vi
Their axial directions are in a substantially close contact state, and the diameter expands in accordance with the width of the terminal plate 1) by the pressing force of the operating body (3), so that the terminal plate +al and the coil spring (Il) are completely engaged. In addition, since the coil spring (IL) is in contact with step green F21 of the terminal board +8) by its own spring force, sufficient stability can be obtained during electrical repair. implementation. In this case, the frame body (2) K connection terminal (rll and lighting element +4
1 are fixedly arranged, and the rear end of each connection terminal 111 is made to penetrate the back plate of the frame (2) and protrude rearward. ())Fi operating body 181 and switch unit +i)
The interlocking body that interlocks the pump and the pump, - is a return spring. In addition, the switch unit 11) has a switch cover G4'A K that covers the switch case λ← and one side of the switch case 0.
The container body is composed of a link (8) rotatably arranged between the switch cover and the bottle, and the switch case (B) is shown in the fourth example in K11fl.
The same contact mechanism as shown in the figure is supplied in the bag. The terminal plate ts+ for the lighting element is f! as shown in FIGS. 8 and 9. A protruding piece (2) with a protrusion on the ri part is cut and raised, and the terminal holder is made up of two pieces on both sides, and the elastic protruding piece IItIll extends outward. It is bent and comes into elastic contact with the inner surface of the link 18). 10th
As shown in detail in the figure, the link +81 is provided with an engaging recess i4η in a part of its inner surface, and the front edge of the protruding piece - rotates the link (8). Engagement recess t4? ), the protrusions expand outward by their own elastic force. In this state, insert the rear end of the connection terminal I61 protruding from the rear surface of the main body into the switch unit (1) as shown in FIG.
When the protrusion (8) is rotated, the protrusion (-) is pushed by the inner surface of the link (S) and bends inward, causing the protrusion (-) on one side to be attached to the connection terminal (6) as shown in Fig. 11(b). At the same time, the terminal plate 161 elastically clamps the connection terminal I6 between the side piece 1 and the protruding piece (41).The mechanical connection between the main body and the switch unit +11 At the same time as the connection, the terminal plate (6) and the connection terminal f61, that is, the lighting element +4
Electrical coupling with 1 is also performed. Note that the fixing protrusion provided on the terminal plate tel shown in Fig. 9 is attached to the terminal plate (6
) is for fixing to the switch case t41). To release the connection, rotate the link jll and insert the protrusion into the engagement recess 14ηKm.

In Figure 12 and below, the shapes of the terminal board (-) and link (8) in the above embodiment were changed, and the link (-) was made to be able to slide back and forth between the switch cover (6) and the switch case t42. The link (8) has an inclination lX1n at the rear of the inner surface, and the terminal plate 11 has an engaging pawl with an inclined part corresponding to the inclined surface l from the bent protrusion 4. The projecting piece 4 of the terminal plate +61 is an extended one.
44 has outward elasticity. Therefore, with only the switch unit 11), the link) 8) is moved forward by the elasticity of the protrusion, as shown in FIG. 14 (@). When connecting the main body and the switch unit Ixl, insert the connecting terminal area into the switch unit (1). After this wire bundle, the protruding piece, is bent nine times inward, Fig. 114(c)
As shown in , the protrusion is inserted into the locking hole 18 of the connection terminal (6).
The protruding piece returns elastically to be engaged with the connecting terminal 16), and at this time, the protruding piece comes into surface contact with the connecting terminal 16). Mechanical connection and electrical connection are made at the same time. To unlink, use the 14th
As shown in figure (b), move the link) and ) backward and the protrusion ■
As described above, in the present invention, the switch unit is made removable and is disposed within the frame. Since the terminal board for the lighting element used in the switch unit is also provided in the switch unit, it is not necessary to produce and stock each one for every combination of the shape of the operating body and the type of the switch part, which allows for rationalization and recombination. It is also easy to perform
-Installation at the user can completely separate the installation to the JS panel from the circuit wiring work, as well as repair and maintenance.
It is easy to inspect.

[Brief explanation of drawings]

Figure 1 is a cutaway front view of one embodiment of the present invention, Figure 2 is a cutaway m-plane view of the same as the above, Figures 3(a) and (b) are front and side views of the same switch unit, and Figure 4 ( m) (b) (
c) is a vertical sectional view, a horizontal sectional view, and a horizontal sectional view of the switch unit same as above, FIG. 5 is an exploded side view of the terminal plate and coil spring same as above, FIG. Figure 7 is an exploded perspective view of the switch 1: +9 to the same as above, No. 8vA
A perspective view of the terminal board on the U.S.
Figure 0 (a) (b) (c) (d) is a perspective view, a plan view, a longitudinal cross-sectional view, and a cross-sectional view of the same link as above, Fig. 11 6)
(b) Fig. 12 is a perspective view of the terminal board of another embodiment; Fig. fJ13 is a perspective view of the link of the same as above; Fig. 14 (axis)) FIG. 2 is a cross-sectional view of the main parts of , (1) is a switch unit, (2) is a frame body,
(3) is an operating body, +4) is a lighting element, (6) is a connection terminal, and (6) is a terminal board. Agent Patent Attorney Ishi 1) Chief 7 Figure 1 Figure 2 Figure 12 b Figure 5 Figure 6 Figure 7 Figure 8 Figure 11 Figure 13 Figure 14

Claims (2)

[Claims] (1) It consists of a nine-push button operation body that is held in a frame and can be slid back and forth, and a switch unit that is connected to the rear of the frame. A switch unit that switches the built-in contacts in response to the sliding of the operating body is provided with a connection terminal that is connected and protrudes rearward, and has a connection part with the connection terminal in the front part and an external connection part in the rear part. An illuminated push button switch, characterized in that it is provided with a terminal plate for an illuminating element having a portion. (2) The connection terminal is fixedly arranged within the frame, and the connection between the connection terminal and the terminal plate for the lighting element in the switch unit also serves as a mechanical connection between the frame and the switch unit. An illuminated push button switch according to claim 1.