DE7142981U - Electric safety mat - Google Patents

Description

Werner Hirachler
5 K ö 1 η 5o, Eailstr. 54

Franz Rudolph

5 Cologne 1, Da83el8tr. 85

Electrical safetya - Schtj.jaatte

The electrical safety switchgear serves as a command device for all uses, "where by entering or Loading a certain area requires an electrical signal. The electrical signal is in the safety shell switched directly.

The main purpose of the safety switching mat is its use as a safety device on machines and devices with dangerous movements.

As we know, there are currently switchgears that are pneumatic Deliver signals that are then converted into an electrical signal. These pressure sensitive mats need valves, which bring about pressure equalization in the event of temperature fluctuations. There is also a switching unit with membrane switches and electrical Auxiliary guards required. Bie responsiveness is difficult to vary. The switch mat is embedded in a metal frame, which when several switch mats are combined forms a walkway which does not guarantee unconditional protection of the laid out area. These pressure sensitive mats are Often failed in the test operation of a large automobile plant, they do not meet the conditions that are required for the unconditional protection of people, as they can only be monitored with great effort are. Electrical safety mats made of PTC with built-in lamellar contacts (make Herion) have a fundamentally different one Structure, they are not flexible enough and cannot be monitored for errors. They are therefore not to be called safety mats, as they only have a simple working contact correspond.

The safety mat developed by us closes all of the aforementioned Disadvantages from

The electrical safety switch mat can sue Gunni. or Plastic can be manufactured, made to measure and laid as a combination of several mats, without being walkable To form webs. You sensitivity is guaranteed up to the edge of the mat.

The mat is flexible and versatile. With a four-wire connection with an electrical one developed by us for this purpose or logic circuit, our switching chain is checked for power failure or short circuit, it is therefore intrinsically safe.

The function of the 2atte corresponds to a simple electrical one Working contact, which is soft thanks to its 4-piece is closed; "close Can be monitored for wire breaks and short circuits by simple electrical or logic circuits.

W. Hirschler
F. Rudolph

Electrical Sioherhelts - switching chain

Construction :

The switching chain consists essentially of two guaai or Plastic plates (1) with or without a surface profile, which are provided on one side with a metal mesh or a metal foil (2). Both plates are old of their metallic ones Side to each other and are separated from each other by elastic guaai or plastic knobs or strips (3) · The distance between the Hopping or stripping affects the sensitivity of the safety switch under pressure. As a connection, a cable (4) can be inserted into the enclosure, which is made of rubber or plastic or a plug connection can be installed, which is connected to the metal thread.

You electrical safety switchgear was mentioned in this fora manufactured and electrical safety and production faohleutea of a large industrial company and declared as an absolutely useful safety device.

Section C t reproduces the section through the mat. View D: shows the inside widths of both parts of the mat. View A: shows the finished mat.

Claims (3)

«) W. Hirachler 5 K ö 1 η 3o, Emilstr. 54 P. Rudolph 5 Cologne 1, Dasselstr. 85 claims for protection 1. Safety switch atte, characterized in that as Contact material metal mesh or metal foil is used. 2. Safety switch according to claim 1), characterized in that that the basic material is gumai or plastic. 3. Safety switch according to claim 1), characterized in that that an animal leader connection is available. 4 · Safety switch according to claim 1), characterized in that that the switch suspension made of Schauaguaai or Schauastoff consists.