DE2220812A1 - DISPLAY BUTTON - Google Patents

Description

Rudolf Schadow, Berlin-Frohnau, Königsbacher line 25

Display button

The invention applies to an indicator button, particularly for Push button holder, with two swiveling, through one Frontal window visible, the ambient light reflecting panels.

Such display buttons in which two defined button positions Different embodiments are known mechanically and optically, i.e. without built-in incandescent lamps. In general, these known display pushbuttons have the following disadvantages:

1. The area used for the display is in proportion to the size the button front is too small, which is due in particular to the complicated mechanical switching mechanism;

2. The display is too far away from the viewing window of the pushbutton, so that no unequivocal determination is possible, especially when viewed from an angle;

3. The display surfaces are curved, which makes labeling difficult.

The invention is based on the object of creating an indicator pushbutton with position indicator while avoiding these disadvantages, which is clearly recognizable even when viewed from an angle and which works reliably over long periods of time.

309845/0216

ORIGINAL INSPECTED

According to the invention, this object is achieved in that the face plates are individually rotatable in the button housing near the Windows are arranged and at least one of them is mounted in a pivot lever which is actuated by the stroke of a slide switch controlled, assumes two defined angular positions and one of the two faceplates in the field of view of the Window swivels.

According to the invention, two relatively large viewing panels can accordingly be pivoted alternately into the field of view of the button will. Since they fold inwards during the period of turning, . The pivoting takes place in the smallest of spaces and the radius of the pivot lever can still be dimensioned large. Did you want that known position indicators that work with a square display drum or pairs of display surfaces arranged at right angles own, equip with comparably large display areas, the button would have to be designed many times larger, if you wanted to have about the same radius on the head. With a smaller radius, the Aostand from the viewing window would be larger will.

Embodiments of the invention are described below with reference to FIG Drawing described, show in the drawing:

Fig. 1 is a perspective view of an inventive Display button, partly broken open,

2 shows an axial section of an unpressed pushbutton,

Fig. J) a sectional view of an approximately half-pressed push button,

4 is a sectional view of a fully depressed pushbutton,

5 shows a section of another embodiment of the invention with button not pressed,

FIG. 6 shows a section of the exemplary embodiment shown in FIG with half-pressed button,

FIG. 7 shows a sectional view corresponding to FIG. 5 with complete pressed button.

309845/021 6

Pig. 1 leaves the spatial design of the faceplates 11 and Ij5, the bearing 10, the pivot lever 8, the bearing 9 and the control of the faceplates through control grooves 15, 15 'recognize. The working method is mainly based on the schematics Illustrations of the other figures explained.

In the pig. 2 to 7, the following parts are generally known and of minor importance for the invention: The key switch 1 with its key tappet 2 and the return spring j5, the switch frame or the chassis 4, the button housing 5 and the button plunger fastening 6 on or in the button housing.

The button housing is through a window 7 on the front interrupted, it could of course also be practical or be provided at an angle at the front if the button front is designed accordingly. The window 7 allows a look into the button, and although on one of the two face plates A = 11 and B = Γ5, like it Figures 2 and 4 show.

The Face panels should be as close as possible to the window. This succeeds all the better, the larger the radius R that the pivot lever 8 has describes the pivot point 9.

The face plates A and B in turn have the common bearing 10 in the pivot lever and can therefore move when the pivot lever is rotated Adjust 8 to the available space and make an angle to each other (Fig.?) That is less than 90 °.

The angle control of the viewing flaps A and B can be different Way. In Figs. 1 to 4 two possibilities are shown. /

309845/0216

In the event that the inside of the button housing 5 control grooves 15 and 15 "are attached laterally, which describe a corresponding curve, so that laterally protruding pins 12, 14 can be attached the sides of the viewing flaps opposite the bearing 10 are guided. In the two defined end positions (Fig. 2 and 4) the pins 12 or 14 are located on the front guide edge 18 and ensure that the faceplate concerned is positioned parallel to one another to the window 7.

The button housing can be produced more easily when the reversal of the viewing flaps only takes place along the outer guide curve 16, 16 ', the pins 12, 14 being omitted if the guide curve l6, l6 'extends over an appropriate or the entire width of the button interior. To erect the However, a spring 30 is then to be provided in front of the window 7, which is located on the one hand in the button housing, for example in the Point 32, is supported and with the leg 31 presses the respective faceplate against the window 7.

Fig. 2 shows the display button in the unpressed position, and the control slide 9 fixed in its position in the switch frame 4 with the hook 20 is located with its cam 21 at the level of the bearing 9 on the pivot lever edge 22 initially outside of the effectiveness. The pivot lever 8 is through a Compression spring 24, which is supported on the one hand on the housing base and on the other hand in the receiving pin 23, in a defined starting position Hold: The faceplate 11 appears in window 7.

When the pushbutton is pressed, the pivot lever 8 moves towards the stationary control slide I9 as shown in FIG. 3 and the cam 21 slides on the edge 22 and thus rotates the pivot lever 8 about the bearing 9. The window 7 appears Temporarily both faceplates 11 and 13 at a more or less acute angle.

• A 309845/0216

When the button is finally pushed in (Fig. 4), it rotates the pivot lever 8 in its defined end position, the faceplate I ^ appears in the window 7 and the pivot lever edge 22 poses parallel to the Schufo directionj when pressing further of the pushbutton, the control cam 21 can no longer change the position of the pivot lever 8, whereby the faceplate Ij5 in window 7 cannot respond to the overstroke of a switch with a change in position.

Often the cramped space conditions inside a pushbutton do not allow the two faceplates to be pivoted the pivot lever 8, and it is sufficient to arrange a face plate 15 in the bearing 10 (FIGS. 5 to 7), while the second face plate 25 is rotatably mounted directly in the housing base, for example at point 26. This face plate 25 is by a spring 28 in the direction of the window 7 is loaded, the spring being supported in the receiving pin 27 of the button housing 5. The resilient face plate 25, the Incidentally, it can also be designed to be self-resilient in the form of a leaf spring, at the same time takes over the task of the spring 30 of the Fig. 2 to 4, i.e. it springs in the off position of the push button (Fig. 5) itself against the window 7, in the impression position (Fig. 7) but also against the viewing flap 15.

FIGS. 5 to 7 again show the operation of the arrangement in the three phases: Off position Fig. 5 * half depressed Fig. 6, fully pressed Fig. 7 · The swivel lever 8 can without spring load (Spring 24 in Fig. 2 to 4) get by when the pivot lever edge 22 describes a bend above the bearing 9 and the cam 21 · of the control spool I9 resting on the angled part 22 * defines the off position of the pivot lever.

It is expedient to move the pivot point 9 of the pivot lever 8 on one side in the direction of the housing bottom (where the bearing 26 is located) laid so that both faceplates are as close as possible to the window

309845/021 6

bring up. In FIG. 6 it can be seen how the viewing flap 25 resiliently deviates inward to the space-saving window IjJ Allow pivoting to the top button housing wall.

A rounding of the sliding edges on the face plates has pure practical reasons, furthermore a slightly angled extension 29 on the faceplate 15 mounted in the pivot lever 8 is special attached to the pivot point 9 displaced towards the housing base, around the upper edge of the faceplate 25 (FIG. 5) in the off position not to lose the engagement.

The faceplates can be given different contrasting colors and / or lettering. On the other hand, a transparent insert in window J can also be labeled and the contrasting colors behind it indicate the push-in or off position.

Claims

309845/021 8

Claims (7)

Patent claims: 1. Display pushbutton, especially for pushbutton switches, with two pivotable, visible through a front window, face plates reflecting the ambient light, characterized in that the face plates (11, 13) are individually rotatable in the button housing (5) are arranged in the vicinity of the window (7) and at least one of them is mounted in a pivot lever (8) which is through controlled the stroke of a slide switch, two defined Assumes angular positions and each one of the two viewing plates pans into the field of view of the window. 2. display button according to claim 1,
characterized in that the face plates have different contrasting colors and / or different lettering. 3. display button according to claims 1 and 2, characterized, that both face plates have the same dimensions and are mounted in a common pivot point of the pivot lever. tast 4. display button according to claims 1 to 3, characterized, that the pivoting of the faceplate in the button housing is guided by control grooves (15, 15 ') in which those located on the faceplates The pins (12, 14) slide. 5. display button according to claims 1 to 3, thereby gekennzei chnet that the faceplate pivoting along the outer curved edges 309845/0 216 (l6, l6 ') steered and the faceplate lying in the field of view by the pressure of a spring (JO) in the direction of the window (7; is erected. 6. display button according to claims 1 and 2, characterized thereby marked chnet, that only one faceplate (11) rotatably mounted in the pivot lever (8) and the second faceplate (25) in a bearing (26) of the button housing is arranged, which either springs itself in the 'direction of the window (7) or with an additional Spring (28) is loaded. 7. display ta st button according to claims 1 to ¹ J, characterized in that the pivoting lever edge (22) extends in one of the or both end positions parallel to the direction of actuation of the control slide (19, 21). 3 0 9845/0216