DE1890267U - ELECTRIC SWITCHING DEVICE. - Google Patents

Description

RA 067 919 * 29.1.6Ί

DR.-ING. DR.-ING. BIPL.-INS. M.SC. * HÖGER - EUG. MAIER - LEGAL LAW

PATENT LAWYERS IN STUTTGART

A 33 170 h

Ii - ta
22oJan "1964

H.Eduard H β r m 1 e "leuhausen / filäer, Kirchs.tr ο 20 ο

Electrical switching device

The invention affects an electrical switching device,

Ss siaö already electrical Sehaltvorriohtungen with one a switching element receiving housing become known? öas sur leadership, at least one switch & töesels an on

1Oi V. ". 3000 Im.

A 33170 h Jan 22, 1964

β ν approx

Btüek has j to which a membrane is attached in a sealed manner by pressing the outer rim _? . This membrane is then with its inner part against the switch plunger. Sealed by appropriate pressing in such a way that overall the switching device on the plunger side is completely sealed against the ingress of liquid and dust «;

With this known construction, however, the following problems arise ^: the sealing points in the membrane and an oily seal is not guaranteed in all cases ^. stead ";

These parts of the known constructions are avoided in the above-mentioned electrical switching devices according to the invention in that the JJe / mbran has an outer ring bead on its outer circumference and an inner ring bead at a distance from it ₉ , the outer ring bead against parts of the housing and the inner ring bead is sealed against the ram, "this design of the membrane, a complete and secure Abdie-ht'u.ng- both the housing can now and gege'aüb the ram" be achieved ER, _a so UNAE is against "Bindringen The electrical switching device on the plunger side, which is sensitive to liquids and dust, is completely sealed off and can now be used for a long time. Tent-.practical;

A 33 170 h
'h - ta

_o 1964

for the full service life of the electric ropes work trouble-free "

The annular bulges of the membrane can now engage on at least one side in a corresponding annular bulge of a plunger or a housing part, or these annular bulges can also be pressed into a corresponding annular groove on both sides =, in some cases this results in a particularly favorable one and safe construction if only on one side of these bulges of the membrane corresponding annular grooves are provided in the press-on parts _§ and the annular bulges are pressed against flat end faces opposite, these annular bulges flatten out so that a large sealing surface is created which is certain a penetration τοη liquid and dust-Prevents. This latter type has the advantage that _nine major © h the flat presses one side of the Riagwulst .these .so. printed broad _s wirö that iiese broadening ;, now .aw © iJ "-about the edge of the ring nut · = engages the opposing part in question and is ersielt so also on the opposite side of the particularly favorable sealing"

The membrane can be used as a solid membrane or as a ring room bran atta-formed., In the latter case it is expedient

A 33 '170 h
fa - ta

22 _e Jaiul964 '

ÖAS center hole of the ffleiabrais so large that the inner annular bead ₉ the inneren.Abschluss.bildet "In this case, the switching tappet sweckmäspig _s have a coaxial stud attachments of this circular hole of the membrane passes through,""the ZWY. Membranb." Zum.Anpressen its inner annular bead can now be a plunger cap. Be used "oils with their flat or with a Ringaut Tersehenea A & ssenranä against the ä®t a page ^l 'inner annular bead - = suppressed OCE membrane" and the äureh retaining means _9, gehalten_ist for example, a cross pin on, switching plunger _β

In order to avoid damaging the membrane ₉ it is. advantageous ρ if the. Outer edge and / or the _interior: this cap ridge is rounded correspondingly, but exitv between öierseii rounded edges Eder remains an annular end face or ehene swischen these rounded edges is arranged a lingnut ₀

A ring shoulder becomes a ring shoulder on the ram through the attachment pin formed, for example, an annular groove sur Aufnähme the inner annular shoulder of the membrane according to the invention can have »■" · '■ ·

% vüp Sealing of the outer ring shoulder can be aas approach =

A 52 170 h

h - ta ■ - Jan 22, 1964

piece of a flat Stirnfläche'oder a provided with an annular groove face have _p in which case the outer-.Ringwulst the membrane is pressed against this end face _β The pressing advantageous canoe done by a Ringstüok _t ä as by retaining means _p example Sehrauben, with the housing or »Whose extension piece is connected * This ring piece can have a flat inner end face or a ring ή αϊ on its end face, which then serves to accommodate © the annular bead of the membrane«,

if the membrane is a full membrane _s d _e h <, if it has no central hole _s so. passes through the Mem ~ bran practical the ram between an inner mu äusserexi a plunger part, in which case these parts may be connected to the membrane by Verschweiseen or gluing.

The two plunger parts advantageously each have an annular recess on the opposite edges into which the inner annular bead of the membrane is approximately zxxi? Half engages ^ whereby in particular damage to the membrane at this bending point is avoided

Ib äer drawings are embodiments of the

■ - 6

A 35 170 II

la - ta

22 Jan "1944

shown ₉ "on its own

Fig.l shows a partially cut, horizontally broken plan view of a holding device according to the invention.

J ¹ Ig.2-'a partial section through the plunger seal

'' Vegetable Pig "Ι but 'to a greater extent than this $

• ■ S ³ Xg “3 Partial section through a variant of the?

• .V

A message in accordance with lig _e 2 _e

Iigo4 a partial section through the ram together with another embodiment of the memtean, wherein the other parts of the switching device have been omitted "

In the embodiment according to Fig.l and 2 that is .; Housing of the inventive switching device indicated as a whole with 10 and in this housing there is an electrical switch H ₉ of a Schalt.stössel 12 has "On the other details of is ßehäusesj namely, the supply of the electric! Lines so? De attachment of the housing ₉ no further details ^ since these parts are -an check known and form no part of the invention _β

A cylindrical extension piece 15 is arranged on the housing

- ■? e.

A 33 170
ΐι - ta

in which engages a designated as a whole with 18 plunger assembly, "The electrical switch to the lug 15 sealed by a sealing membrane 20 ₉ through which you can move the plunger assembly is transmitted to the electrical switch ·"

In the following, the plunger assembly will now be explained in more detail in connection with the housing _: In a recess 22 of the extension piece, a bushing 25 is pressed into which a plunger 30 is guided in a longitudinally displaceable manner. The transmission of a pressure exerted on the plunger 30 takes place via a pressure which is arranged inside the plunger

34
Compression spring / and a pressure pin 33 "

The above-mentioned plunger 30 has at its outer end a cylindrical extension pin which is coaxial with the plunger 40g formed by a ring shoulder on the ram ■ "As" becomes particularly clear from Fig. 2, has' this ring shoulder an annular groove 42 "in the with a inner Hingwulst 44 designated as a whole with 46 Membrane engages »

AEN on ram 30 or "whose Ansatzzapfea 40 is a plunger cap 50 placed over the ₉ engages with its annular peripheral this Änsatazapfen and having a planar

A 33 170 h

h - ta

22. Jail ο 1964 '<~ 8

the annular end face 52 against the inner annular bead 44 OCE membrane presses 46 "is this case, this annular bead initially a circular cross-section having flattened corresponding to ₉ as is seen clearly in FIG _o 2 * The edges su" both sides of the annular end face 52 are ,, as in the Pig, 2 shown p rounded in order to avoid damage to the annular bead 44 ο

The attachment of the plunger cap can by screwing, or particularly accomplished simply by ,, that em ^ uer · = * pin driven through ά η @ Umfängst ecause the-Sjtjösselkappe uni of Ansatzaapfens • 40 55

The aforementioned membrane 46 is next to the ianeren Ringwvlst still an outer annular bead 6O ₉ is pressed by means of a ring piece 62 against the flat end face 64 of the endpiece 15 _o This annular portion can have an L "shaped cross-section ₉ 'in which case the inner leg 66, a corresponding annular groove having 67, can in which the outer annular ring 60 of the diaphragm engages with the outer leg 68 engages over this Ringstücl: the endpiece 15. the Presser "of the ring piece 62 ge" splints with the aid of a Abdeekseheibe 7O _9, the medium- . ". Corresponding parts 72 are pressed with the help of υοώ screws 74, which are screwed into the housing _o

A 53 17.0 h

h ~ ta

Jan 22, 1964 -JL

Between the Aböeek disc 70 and the ring piece 62 channels are provided ^ so that any on The exterior of the device is dripping liquid afoflies-sen can.

As can be seen particularly clearly from FIG. 2, the outer annular bead βθ of the membrane 46 is flattened by pressing it against the flat end face 64 of the extension piece 15 so strongly that the outer edge can touch the hand of the annular groove 6? overlaps ₉ so that a particularly favorable seal is achieved at this point

In KLg ₈ ? a variant of the Ausfüfarungsforni according to i ^J ig _c 2 is shown and as far as the parts have remained unchanged j the same designations are used »

Difference to the design according to E ¹ Ig "2, the seeding piece marked 80 here has a ring" = roughened 8I ₉ into which the outer annular bead 60 of the membrane 46 engages "

In a similar way here has also designated with 84 Nete cap on its inner end face an annular groove designated 85, into which the 'lesser Hingwulst 44 of Membrane 46 engages "

- 10 -

A 55 170 th
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Ιϊι the embodiment according to Fig, 4 is only .the plunger and the membrane are drawn in. The remaining ' files can then be added according to Figo2 or 3 «,

The membrane designated as a whole with 90 has an outer ring bead 91 ₉ an inner ring bead 92 and a jlitteX "ötüek 95.9 which has a circular shape"

The tappet designated as a whole with 95 has an inner tappet part 96 and an outer tappet part, and between these two tappet parts the membrane and in particular its center piece 93 is now arranged. in such a way that the inner annular bead 92 of the membrane etmo. can reach halfway into these recesses "

The attachment of the outer Stösael part 97 and the inner plunger part 96 with the membrane can through 7 welding. and / or sticking happened «

Claims (1)

RA 067919-29.1.B ^ A 33 170 h 1 »Electrical switching device with a housing _P which accommodates at least one switching _{element and which has an attachment piece 9} on which the outer edge of a membrane is sealed by pressing the outer edge and which presses with its inner part against the holding rod sealed iat _? characterized gekennaeichnets that the membrane at its outer periphery an outer-Hingwulst and spaced apart therefrom an inner Hingwulst a iifwei St ₁ JF ⁵ ton which the former against the housing τ _u; nd "the second named against the holding ram» ■ "■" is sealed , Side device according to claim 1. characterized by _s % @, bb the bulges on at least one side engage in a corresponding singing groove of a plunger = or housing part » 3 o Switching device according to claim 1 or ⁵ 2 ₉ characterized in that the annular beads are pressed against a flat surface of a plunger on at least one side,? A 35 170 hh, - ta Jan 22, 1964 - December 12 Switching device according to one of the previous languages j, cladureso characterized, that öer Sehaltetössel ■ with an attachment pin through a ffiittellocii of the membrane- 5. Switching device naeh one of the preceding claims, characterized in that the Sehaltstössel © ine switch cap, the pressure with its flat or provided with an annular groove outer edge against one side of the inner annular bead of the membrane by retaining means, - for example, a cross pin "on the plunger g _e is ehalten 6. Switching device according to claim 5s> characterized that the outer and / or inner edge of the plunger cap rounded is »· ■ · 7β Sehaltvorrichtung according to any one of the preceding claims characterized in that the _s Schal'tstössel Hing a shoulder having the EIA-e annular groove for receiving the inner - ^ ingwulst the Merabraö has " 8 ", switching device: according to one of the preceding claims, characterized ₉ that the extension piece has a plane or a face provided with a groove ₉ against which the outer bead of the membrane is pressed" A 35 170 h
h - ta Jan 22, 1964 - XX 9ο S-öbalt-rörriobtung according to one of the preceding statements Proverbs, characterized by _äasa oils outer bulge through a ring piece against the extension piece de © Housing is pressed * IQO "Schaltvorrichtung'nach claim 9 ₅ characterized gekennzeldb" net j that ^e: IUE inner end surface of the piece Hing an annular groove for receiving the outer annular bead of the diaphragm has ο 11. · Holding device according to one of the preceding claims, characterized in that · that the membrane is a membrane and extends through the plunger _β 12 «Switching device according to claim H _9, characterized in that the inner and outer tappet parts are connected to the intermediate membrane by welding or gluing« 13β .Schaltvorriehtung according to claim 11 or 12, characterized markedy dasa the two ram parts on the Each of the opposite edges has a ring recess have, in which the inner annular bead of Membrane engages approximately halfway "