Title:
SAFETY CONTACT STRIP
Document Type and Number:
WIPO Patent Application WO2001044611
Kind Code:
A3
Abstract:
The invention relates to a safety contact strip (1 ) that is regularly used as a closing edge safety device in squeeze and shear areas, for example, gates, machines or the like, having at least two conductive switch layers (2,3) in a non-conductive, closed switching chamber (4) located inside a profile (6) that forms an outer jacket (5). In order to enhance quality while preserving a relatively simple structure of said strip, the profile (6), the switching chamber (4) and the switch layers (2,3) are configured as a single piece having at least one built-in conductor (7,8). In order to ensure safe switching even in case of low switch loads and unexpected direction, the switching chamber (4) is kept free in a cross section by spoke-shaped webs (9,10,11). The invention also provides for a cap for closing the front side of the safety contact strip.
Inventors:
FRIEDRICH HELMUT (DE)
MEYER PAUL (DE)
MEYER PAUL (DE)
Application Number:
PCT/DE2000/004182
Publication Date:
February 28, 2002
Filing Date:
November 24, 2000
Export Citation:
Assignee:
ASO GMBH ANTRIEBS UND STEUERUN (DE)
FRIEDRICH HELMUT (DE)
MEYER PAUL (DE)
FRIEDRICH HELMUT (DE)
MEYER PAUL (DE)
International Classes:
E05F15/44; H01H3/14; E05F15/40; (IPC1-7): E05F15/00
Foreign References:
| DE3715871A1 | 1988-11-17 | |||
| US5481076A | 1996-01-02 | |||
| US5832665A | 1998-11-10 | |||
| DE9306553U1 | 1993-08-26 | |||
| US5780793A | 1998-07-14 |
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