DE1490270A1 - Explosion-proof switch - Google Patents

Description

S rEHENS-SCHDCIERT.YERO Erlangen, February 13, 1962 Aktiengesellschaft Werner-von-Siemens-Str. 50

PLA 62/1102

Bxploaions-insulated container

For installation in rooms at risk, it is necessary Use switching devices that comply with the safety regulations for explosion protection ». Be a loan τοη Sehalteinrichtungen are known, which are designed in a special design that meets these requirements. The application of such Switching devices, however, offers many in terms of their Relatively speaking, hem requirements raised difficulties.

According to the invention, a switching device is provided which the above-mentioned requirements are met by pouring a commercially available small holder, in particular a small holder, by pouring is made explosion-proof in a paseendee housing "

BAO OB) QiNAL 909827/0128

PIA 62/1102

A switch design can be used for this kit with particular advantage which is designed for pushbutton actuation, and "was previously a single boom shape in which the connection terminals for the lead wires on one and the same side, but opposite lying on the push button "

for the installation of special bit is "pie 11, an approximately prismatic Oehäuse aue Preßetoff or metal rerwendet _f dae after five sides closed and after the sixth page for bypassing commercial switching elements dee let open. A special shaft is arranged on one of the sealed sides, in which a sliding plunger can be guided in a sealed manner.

This is an example of the implementation of a switching device after the fire let la shown in the drawing. With 1 let here a trade Ublloher Druckknopfsohalter called, the old help a · Druokknopfee 4 can be actuated. On the side opposite the push button, there are oewlndebores 10 which For the screwing in of very screws to clamp the cables in place.

For the accommodation of the switch "in exploslonsgcechUtster foim let a" weokeäig on a step-bedded Oehäuee 2 aue PreBetoff gate way, because there is a floor 21 eowle also four land 22 to 25 "JDtLeeea has a reohteok-shaped cavity 26 on Switching element 1 can be inserted. At the remote everyone, eyes 27 are set which are intended for securing. In addition, there are service positions 28, for example

909827/0128

BATHROOM - 2 -

PLA 62/1102

provided in the form of pressed-in laittarn, to which the switching element itself can be attached with the help of screws 3. In the middle, the base has a shark-like extension 7, in which a guide tube 6 can be cast or pressed in, which is used to guide a plunger 8 determined 1st. 5 is a sealing ring which is inserted into an annular groove 29 in the bottom and rests against the end wall of the switch 1, so that a perfect seal is achieved when the screws 3 are tightened by adjusting the switch to the housing. _Λ

In the connection bores 10 of the switch columns 11 are as conductive intermediate piece screwed in, dl old at its upper end Servings sum of terminals of the connections by means of connection screws · At the end of the open side of the housing there is a dachshund 9 made of insulating material with holes for the pillars and provided with projections 91 which are in guide grooves of the housing 92 engage and then swiach openings 93 for leasing lie. The entire cavity swisehen the switch 1 unl The Gthftuse 2 is filled with an insulating outer material, dl · f an adhesive tight connection heretelit. Through the insulating filling, a complete seal is achieved and, in doing so, also On the same side a twisting achuts for the pillars 11 are provided. Oiacshar or epoxy resin, for example Araldlt, can be used as the filling. be used.

By «Ine Kapp · 71, which can be placed on the neck and with a drill «- fartngeran Dttrchaaeaers vereehea 1st, by dl · that leads to the remote · Ende 4 ·· StOaaals is “in shame against falling out. An dl · on the Bückocita from the

909827/0128

PU 62/1102

Cover harauaragandan pillars 11 can dl aneohloaedräht old help τοη normal fastening hoods are disconnected · BIa holes In the Deokel there are eo formed, that ·· the dachshund - that yes dureh dl · Yerguaamaaa · is held - also duroh dl · line · » anachltta ·· still lured let.

Baa Sohalteleaent old Mmflea τοη about 3x2x2 ca let here with swal SchaltbrOolcan with gladly ina amer operation and each awei Anaohlttaaan auagattthrtf eo das · ea belepielevrelce al · swelpollger Unterbreeher can be used

Ba dl · Use of serially manufactured switches smaller Design is possible, aan can be obtained with little effort and if there is little need for baia "in · 0ohaltelnrl« ht «ng, dl · b« ieplel · - white ·· of the Bonderaohuta species "S" entepreoheniS TBX 0171 / 9.57, type (Bz) d2 09 »enteprloht.

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909827/0128 B ^ P original

Claims (1)

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