专利摘要:
The present invention relates to a grid (1) comprising tubular elements (2,3,6), arranged in at least two directions (4,5) substantially perpendicular, each element (2) arranged in one direction being assembled integrally to one or more elements (3) arranged in another direction, said grid comprising tampering detection means. Said grid being characterized in that at least one tubular element (6) arranged in each of the two directions is equipped with a wire or cable (7) capable of transmitting a signal or information, said cable being connected to a means ( 8) detecting said signal or said information. The present invention also relates to a method of manufacturing such a grid.
公开号:BE1019499A5
申请号:E2010/0178
申请日:2010-03-19
公开日:2012-08-07
发明作者:Frederic Fournier;Roland Gauthier
申请人:Dirickx Groupe Sa;
IPC主号:
专利说明:

GRID WITH DETECTION OF THE SECTION
The present invention relates to a protective grid. More particularly, the present invention relates to a grid for making fences, including burglar-proof fences.
It is known to provide the fencing means for remote detection of a break-in. It is in particular known to equip the elements of a grid with means for detecting the sectioning of at least one of said elements.
Γ
For example, the document FR2737747 describes a grid consisting essentially of longitudinal son, welded to vertical elements. At least one longitudinal wire contains an electrically conductive cable, connected to a means of detecting a break in electrical continuity.
The cutting of a longitudinal element of the grid containing a cable then triggers a burglar signal.
This system can provide effective protection when the vertical elements of the grid have a significant resistance to an attempt to sectioning.
However, it is common to make grids from longitudinal and vertical son of similar section. It is then as easy to cut the vertical son as the longitudinal son.
On the other hand, it is common for the wires forming the grids, in particular the metal wires, to have a low resistance to elastic and / or plastic deformation.
In the event of a break-in, it is therefore easy to cut only the vertical threads, then to discard the longitudinal threads in order to allow the passage to an intruder. Longitudinal son not being cut, the burglar alarm is not triggered.
The present invention solves this problem. The present invention relates to a grid comprising tubular elements, arranged in at least two substantially perpendicular directions, each element arranged in one direction being integrally joined to one or more elements arranged in another direction, said grid comprising means for detecting burglary, said grid being characterized in that at least one tubular element disposed in each of the two directions is equipped with a wire or cable capable of transmitting a signal or information, said wire or cable being connected to a means for detecting said signal or said information.
According to a preferred form of the invention, at least one wire or cable is capable of transmitting an electrical signal.
According to a preferred form of the invention, at least one wire or cable is able to transmit a light signal.
According to a preferred embodiment of the invention, elements arranged in the same direction are located on two substantially parallel planes, elements arranged in another direction being located between said planes.
According to a preferred form of the invention, tubular elements arranged in one direction are parallel and coplanar with solid cylindrical elements of similar section to said tubular elements.
The present invention also relates to a method of manufacturing a grid, comprising the following steps: - assembly of the tubular elements and possibly solid cylindrical elements, - insertion of a wire or cable into at least one of said tubular elements arranged in each direction, the insertion being effected by the ends of said tubular element.
The invention will be better understood on reading the description which follows and on examining the figures which accompany it. These are given as an indication and in no way limitative of the invention. The figures show:
Figure 1: a grid according to one embodiment of the invention Figure 2: a grid according to another embodiment of the invention.
Figure 1 shows a grid 1, composed of horizontal cylindrical elements 2 and cylindrical element 3 vertical. The elements 2 are substantially parallel to each other and arranged in a horizontal direction 4. Similarly, the elements 3 are substantially parallel to each other and arranged in a vertical direction. The number of horizontal elements 2 can be even or odd, as can the number of vertical elements 3.
In the example shown in Figure 1, the horizontal elements 2 are coplanar. The vertical elements 3 are also coplanar. The elements 2 and the elements 3 are located in two parallel planes.
The elements (2, 3) are made of a substantially rigid material. For example, it is possible to use metal, or else plastic, in particular of the PVC type. The elements 2 can be assembled to elements 3 by any known fastening means. They can be assembled by welding, gluing or by means of a screw-type fastening means, or by an elastic interlocking system.
Some elements (2, 3) have a tubular shape. The inside of the tube 6 accommodates a cable 7 able to transmit a signal or information. The cable 7 is connected to a means 8 for detecting the signal or information conveyed by said cable. When the cable 7 breaks, the means 8 can trigger an alert signal, which highlights a possible break-in.
According to one form of the invention, the cable 7 is a single-core, or multicore, or coaxial electric cable. According to another form of the invention, the cable 7 is of the fiber or optical cable type.
It is possible to have in the same grid 1 several types of cables 7. For example, the cables 7 passing through the vertical elements 3 are electrical cables and the cables 9 passing through the horizontal elements 2 are optical fibers.
An advantage of using an optical cable 9 is that said cable, by a wave reflection phenomenon, can transmit by means 8 information on the position of the breaking point of the cable. In case of elements 2 of great length, which can constitute the fence of an extended area, such a system is useful to know the place of possible break-in.
The same cable 7 can pass through several tubular elements (10, 11). According to another form of the invention, each cable 12 passes through a single element 13 of the grid 1. Each cable 12 must then be connected to a means 8 for detecting the signal.
It is possible to equip a cable 9 all the elements 2 arranged in the same direction. In the example shown in Figure 2, each horizontal element 2 is equipped with a cable.
However, in order to limit the production costs, it is also possible to equip only part of the tubular elements 6. The elements (6, 10, 11, 13) equipped with a cable (7, 12) can be randomly distributed among the elements 3 arranged in the same direction. Elements equipped with a cable can also be periodically distributed among the elements 3 arranged in the same direction. For example, it is possible to equip one consecutive element 3 out of two or one consecutive element 3 out of three. Thus, the probability remains high that an element 3 equipped with a cable 7 is severed in case of break-in and that the warning signal is triggered.
The grid 1 may consist solely of tubular elements 6, with or without cables 7. In order to improve the strength of the grid 1, it is also possible to make certain elements 14, not equipped with cables, in the form of cylinders full.
Preferably, the tubes 6 and 14 cylinders full have the same external shape, including the same section. Thus, an outside observer is not able to detect which element is likely to be equipped with a cable 7.
Figure 2 shows another embodiment of the invention. The grid 1 represented in FIG. 2 comprises horizontal elements 2 and vertical elements 3. A cable 15 passes through both horizontal tubular elements 2 and vertical tubular elements 3. The ends (16, 17) of this cable 15 are connected to means (not shown) for detecting the signal or information conveyed by the cable 15.
In the example shown in Figure 2, the vertical elements 3 are located in two substantially parallel planes. Said planes are located on either side of a parallel plane, comprising the horizontal elements 2. More particularly, the elements 2 are sandwiched between pairs (18, 19) of vertical elements 3. It is also possible to make a grid in which vertical elements are sandwiched between pairs of horizontal elements.
The use of pairs (18, 19) of elements arranged in the same direction provides better rigidity and better strength to the grid 1. It is possible to equip a cable 15 the two elements (18, 19) of the pair. According to the example shown in Figure 2, a single element 18 of the pair is equipped with a cable. The element 19, not equipped with a cable, may consist of a tube or a solid cylinder.
In the example shown in Figure 2, the elements (18, 19) of a pair are both located in a plane perpendicular to the plane of the grid. It is also possible to arrange the elements of the same pair differently (18, 19). In particular, the elements (18, 19) may be staggered along the horizontal elements 2.
The grids 1 shown in FIGS. 1 and 2 can be produced according to various methods. It is possible to introduce a cable 15 into one or more tubular elements 6, passing through the ends (20, 21) of said elements. Said elements 6 are then arranged in the desired position, possibly with other tubular or solid elements constituting the grid 1. The elements of the grid are then fixed to each other by one or more means as defined above.
According to a variant of the invention, it is possible to first assemble the elements of the grid 1, before introducing one or cables 15 in some of its elements 6 through the ends (20, 21) of said elements.
It is also possible to equip the elements 6 with a cable 7 without passing through the ends of said elements 6. One can for example introduce the cable 7 by a groove formed laterally in an element 6, this groove being then filled with a material filling. Such a method is described in the document FR2737747.
For reasons of safety and aesthetics, the parts (22, 23) of cable 15 remaining bare between the elements 6 are then protected and / or camouflaged, possibly by additional parts attached to horizontal elements 2 and / or 3 vertical elements. The protection of bare cable parts (22, 23) can be made at the stage of manufacture of the grid 1 or at the stage of installation of said grid in a fence.
In the examples shown in Figures 1 and 2, the elements (2, 3) have a substantially rectilinear shape. It is also possible to form stiffening folds, for example in vertical elements. Specifically, some vertical elements 3, with or without a cable 15, may have a curved portion.
It is also possible to make a grid 1 of the lattice type, in which elements 2 and elements 3 are woven with each other. The tubular elements 6 accommodating a cable 15 then have a wavy shape.
权利要求:
Claims (8)
[1]
1. Grid (1) comprising tubular elements (2, 18, 19) disposed in at least two substantially perpendicular directions (4, 5), at least one tubular element arranged in each of the two directions being equipped with a wire or cable (7) adapted to transmit a signal or information, said cable being connected to means (8) for detecting said signal or said information in order to detect a break-in, said gate being characterized in that elements (18, 19 ) tubular disposed in the same direction are located in two substantially parallel planes and integrally assembled to one or more tubular elements (2) arranged in another direction and located between said planes.
[2]
2. Grid according to claim 1, characterized in that at least one wire or cable is able to transmit an electrical signal.
[3]
3. Grid according to claim 1 or claim 2, characterized in that at least one wire or cable is capable of transmitting a light signal.
[4]
4. -Grille according to one of the preceding claims, characterized in that tubular elements equipped with a wire or a cable are distributed randomly among tubular elements arranged in the same direction.
[5]
5. Grid according to one of the preceding claims, characterized in that tubular elements equipped with a wire or a cable are distributed periodically among tubular elements arranged in the same direction.
[6]
6. Grid according to one of the preceding claims, characterized in that a single wire or cable (7) passes through several tubular elements (10, 11).
[7]
7. Grid according to one of the preceding claims, characterized in that tubular elements arranged in one direction are parallel and coplanar with solid cylindrical elements (14) of similar section to said tubular elements.
[8]
8. A method of manufacturing a grid according to one of claims 1 to 7, comprising the following steps: - assembly of the tubular elements and possibly solid cylindrical elements, - insertion of a wire or cable in one to at least one of said tubular elements arranged in each direction, the insertion being effected by the ends of said tubular element.
类似技术:
公开号 | 公开日 | 专利标题
BE1019499A5|2012-08-07|GRID WITH DETECTION OF THE SECTION.
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FR2733624A1|1996-10-31|ELEMENT INTRODUCING ELECTRICAL FENCE AND CLOSURE OF CONCERTINA TYPE IMPLEMENTING SUCH ELEMENTS
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CN101886896A|2010-11-17|Optical fiber-containing barbed wire
CH642186A5|1984-03-30|Device for monitoring an object or a site
BE1025231A1|2018-12-10|Electrical protection system
WO2007026096A1|2007-03-08|Linear element for an electric fence
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FR2938402A1|2010-05-21|Adapter for installation of screw insulator on fencing picket in electric fence, has main part receiving picket, rectangular plate intended to be fixed to main part, and threaded opening receiving screw insulator
同族专利:
公开号 | 公开日
ES2388301B1|2013-04-25|
FR2943446A1|2010-09-24|
ES2388301A1|2012-10-11|
FR2943446B1|2016-07-01|
MA31747B1|2010-10-01|
CN101839085A|2010-09-22|
引用文献:
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DE102006009796A1|2006-03-01|2007-09-06|Feldhaus-Uhlenbrock Sicherheit & Technik Gmbh|Barrier with alarm-secured stopper grid used in highly-secure areas, has two hollow sections that form cross, and cables arranged inside respective hollow sections and following cross shape formed by two hollow sections|
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IL83634A|1987-08-25|1992-06-21|Ispra Israel Prod Res Co Ltd|Railing|
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CN2534635Y|2002-01-20|2003-02-05|刘子杰|Antitheft net|
AT427396T|2005-03-01|2009-04-15|Sorbello Rene|GRID WALL FRAME|
CN201159037Y|2008-02-22|2008-12-03|李砚泰|Protection fence for embedded door and window|CN105225381B|2015-10-14|2018-02-13|国家电网公司|A kind of intruding detection system based on optical fiber fence|
CN109247117B|2017-07-14|2021-02-09|苏州宝时得电动工具有限公司|Method and device for automatically detecting boundary line breakage and intelligent mower|
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法律状态:
优先权:
申请号 | 申请日 | 专利标题
FR0951752|2009-03-19|
FR0951752A|FR2943446B1|2009-03-19|2009-03-19|GRID WITH DETECTION OF THE SECTION|
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