(57) The invention relates to a device for protecting against burglary, of the type, with
which a bolt catching case mounted on or in a frame and cooperating with a rock in
or on a hinged panel, is connected with an active element by means of a core line
protected by an outer sheath, said core line extending through a guide opening in
said lock catching case towards a fixed anchoring location, in such a way, that In
case of a displacement of the bolt catching case as a result of an attempt at burglary
the active element will be moved to close an alarm circuit, whereby the core line
is arranged to hold the active element against spring action in an inoperative position,
an auxiliary element being mounted on the frame adjacent the guide opening for the
core line, said auxiliary element cooperating, in case of a forced displacement of
the bolt catching case, with the portion of the bolt catching case delimiting said
guide opening so as to perform a scissor action onto said core line.
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