DE2025229C3 - Splashproof push button switch - Google Patents

Description

Installation wall a sleeve is arranged; f return

which at one end form-fit with the wiro * »** released and can evaporate. Operator panel is connected and at its other ^ste "^. ^W VrL arrangement is prevented that

fi dn J ^ SL _e j _ner push button the cuff

_BeDa chbarte, also to be pressed, warped and this jammed folds. The

Operator panel is connected
ren end has a sealing bead which is pressed against the installation wall by a compression spring, characterized in that a cap (7) with its opening (19) is placed over the operating element (4) and with its side wall (15) the form-fit connection (11) and that the cuff (6) along its entire circumference has a given, single, bellows-like constriction (17) au "w" u kink folds (18) which surfs near the opening (7) di S.

This is caused by the fact that the Manschethidene Having thicknesses.

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(19) of the cap (7) is arranged.

rectangular operating elements ^^. ^^^ expediently so ge-sealing bead circular ausüu _the ^, _ichtfmc he the built-in wall Sg Lo is very simple, the other parts of the cuff arrangement, however, are rectangular.

With this design, the cuff arrangement is suitable for use in rows of pressure switches also with illuminated display and a small number of keys

Sg

It

ti g- * a _{partially in section}

ter arrangement in side view, partly in section,

^ the working position too

in

The invention relates to a surge water-tight push button switch, in particular with
Illuminated display in which between 3 "
the operating element of the push button switch and the
Eiubauwandung a cuff is arranged, which
at one end formsch.ü.sig mk is connected to the control element and at the other end
has a sealing bead, which is supported by a pressure 35 Fig l. Push button switch arrangement

spring is printed on the installation wall. L »ie oaiguiemc uiu _A ,, _rr x. j _io , "i"

Arrangements of individual tchwall water densities essentially consist of emem du ^ ± c ₂ cylm pushbuttons are already known. This is how, for example, a drische borehole! In the installation wall2 the USA patent specification 2 430 064 hm the push-button continuous shaft 3 with a rectangular, Bed limit switch with a sleeve, which is between a 40 element 4, a compression spring 5 of a M ^ chetitn-on control element and the cover plate of the push button 6 and one is arranged via the control element 4. and on the one hand positively with
the cover plate and, on the other hand, is connected to the control element via a compression spring. This
The compression spring also serves to return
the push button switch to its rest position. the
The cuff is designed as a bellows that is bent several times.

_forms

For the task of a seal between an operating element of a push button switch Row of push button switches and a built-in wall through which the push button switches protrude, is the described bellows arrangement of the sealing collar because of the small dimensions il T d d i

ment 4, a ^

Order 6 and a cap 7 slipped over the control element 4. The shaft 3 is stuck through a foot piece. 1 8 completed that to connect with eme LampeQ is set up to illuminate a between cap? and operating element4 inserted foil-shaped writer 10 through transparent Shaft 3 and control element 4 serve ^ The same transparent or translucent cap 7 allows the writer 101 to be viewed.

The cuff assembly 6 is on the one hand over a form-fitting connection 11 connected to the control element 4, on the other hand with an integrally formed, conical sealing bead 12 through which Compression spring 5, on a sealing surface 13 of the installation

Sealing sleeve because of the small size of the compression spring,

pressed between the individual keys and because of the small 5S wall 2 The compression spring 5 stops outside

gen distance between the compression spring and the edge of the push button switch in its rest position, they

dil ih db Shb 14

Control element not applicable.

It is an object of the present invention to provide a push button switch assembly of the foregoing Art to create that is also applicable to push button switch rows with small key spacing and the an independent actuation of individual pushbuttons of the pushbutton switch row is not hindered.

According to the invention, this object is achieved by d dß i K i ih öff über d

the the D g

engages the shaft 3 and a support disk 14 for pressing the sealing bead 12 of the cuff arrangement 6.

The form-fitting connection 11 is firmly pressed by the cap 7 with its side wall 15.

A bellows-like constriction 17 of the cuff arrangement 6 between the positive connection 11 and the sealing bead 12, with a b Kikflt 18 rt for a disruption

According to the invention, this object is achieved by bing g

been that a cap with its opening over the 63 predetermined kink 18 ensures a disturbance

The control element is turned over and the form-fitting buckling of the cuff arrangement is 6 m

bid i ih Sid fß i öff 19 d cap 7 when pressing the

gp

sige connection with its side wall and that the sleeve along their entire ge around free Eg

an opening 19 of the cap 7 when pressing the push button switch.

1 sheet of drawings

Claims (1)

Patent entitlement: SchwaU-watertight Dnicktastenscnatter, in particular pushbutton switch with light indicator, in which to seal between the control panel of the Drucktasienscbalters and the the catch has a given etazige bellows artise So-Sg els KnMfalten, which is close to the open Catch a crease that is placed near the off-top of each cap. Di ^! Of sleeve leads the Driiknrocktastenschaiters to Einknickimg _"nd J ₆₈ total bellows into the public areas-case through the outer wall""t" circumstances trapped water returning the pushbutton in the rest * b d k earthed dieneleroent of the printing tai