SECURITY MATERIAL HAVING A WEB-LIKE INTERLACED FABRIC

• US 20100097215A1
• Filed: 09/24/2009
• Published: 04/22/2010
• Est. Priority Date: 10/22/2008
• Status: Abandoned Application

• Current Assignee: Sefar AG
• Original Assignee: Sefar AG
• Inventors: Locher, Ivo
• Application Number:
  US12/566,256
• Publication Number:
  US 20100097215A1
• Time in Patent Office: Days
• US Class Current: 340/550
• CPC Class Codes: E05G 1/024 Wall or panel structure
• CPC Class Codes: G08B 13/126 for a housing, e.g. a box, a safe, or a room
• CPC Class Codes: G08B 13/22 Electrical actuation

Abstract

The invention relates to a security material having a web-like interlaced fabric and insulated, electrically conductive wires integrated therein. Provision is made for a first wire to be arranged in the longitudinal direction of the web-like interlaced fabric and for a second wire to extend in a meandering manner across the width of the web-like interlaced fabric in the longitudinal direction thereof.

Claims

1. Security material having a web-like interlaced fabric and insulated, electrically conductive wires integrated therein,

wherein

a first wire is arranged in the longitudinal direction of the web-like interlaced fabric and

a second wire extends in a meandering manner across the width (B) of the web-like interlaced fabric in the longitudinal direction thereof.

2. Security material according to claim 1,

wherein

the first wire is arranged on a periphery of the interlaced fabric.

3. Security material according to claim 1,

wherein

on at least one side surface of the interlaced fabric the wires do not protrude from the said side surface for protection against damage.

4. Security material according to claim 1,

wherein

the spacing (D) of two adjacent sections of the second wire to each other lies in the range of millimeters, in particular 2.3 mm.

5. Security material according to claim 1,

wherein

the wires are enamel-insulated metal wires, in particular copper wires, the diameters of which lie in the range of some 50 micrometers, in particular between 100 and 150 μ

m.

6. Security material according to claim 1,

wherein

each wire has a respective connecting element for electrically connecting the wires to a measurement electronics.

7. Security material according to claim 1,

wherein

the first wire and the second wire are electrically connected to each other at their adjacent ends and the two other ends of the wires are connected to the measurement electronics for measuring the conductivity of the connected wires.

8. Security material according to claim 6,

wherein

the electrical connection of the wires to the measurement electronics is effected through soldering, welding or by means of insulation displacement connectors.

9. Security material according to claims 6,

wherein

the electrical connection of the wires to the measurement electronics is effected by way of a printed circuit board fixed on the interlaced fabric.

10. Security material according to claim 9,

wherein

the printed circuit board is flexible.

11. Security material according to claim 1,

wherein

the meanders of the second wire protrude laterally in the form of wire loops from the web-like interlaced fabric.

12. Security material according to claim 1,

wherein

for protection of the wire loops the lateral interlaced fabric edges and the wire loops are embedded in a seam tape, in particular having a thickness of 250 μ

m.

13. Security material according to claim 1,

wherein

the interlaced fabric has an opening for passing through lines, feed-throughs, connecting and fixing elements or the like, without interrupting wire connections at the place of the opening,

whereby on the interlaced fabric a printed circuit board is fixed above the opening, which is larger than the opening and whose conductor paths connect the respective ends of each wire connection to each other.

14. Security material according to claim 1,

wherein

the interlaced fabric has a slot-shaped opening for passing through lines, connecting elements or the like, without interrupting wire connections at the place of the opening,

whereby the slot extends along the sections of the second wire and the interlaced fabric in the vicinity of the slot is reinforced by a seam tape.

15. Security material according to claim 1,

wherein

the interlaced fabric has at regular intervals in the longitudinal direction, in particular every 25 mm, a marker line in the form of a missing thread that extends along the width.