EP1257005A1 - Clamping device for fixing plates in particular transparent glass plates - Google Patents

Abstract

The glass panel (2) has a surface coating of electrically conductive material that forms two tracks (10,11). On both sides are clamping elements (1). Built into these are spring electrical contacts that engage the surface tracks on the glass. The contacts connect to an alarm should the glass be broken.

Description

The invention relates to a clamping device for fastening plates and in particular transparent glass panes according to the preamble of Claim 1.

Glass panes and glass partitions on banisters and So far, balustrades have mainly been used to prevent falls. When attaching the glass plates, the main thing is that the clamping devices used the glass pane or Hold the glass partition securely between your jaws without the Risk of damage to the glass panes due to the clamping effect of the There are jaws.

The clamping devices are therefore on the inside of the jaws Upholstery made of an elastomeric material attached to the two Hold the sides of the glass panes flat and hold them securely.

If the glass panes or partitions consist of toughened safety glass, so if it is used in traffic zones, because of a possible spontaneous break as a precaution on the attack side be equipped with a splinter-binding film.

In practice, these safety requirements are met by prudent specialists already taken into account. It is therefore also a revised version of the Glazing regulations to be expected, which are in line with those of the Fall protection function when using safety glass panes problems that arise and must be observed.

For security reasons, the possibilities have so far remained which is characterized by a coating of the glass surface with electrically conductive Materials.

The invention has for its object a clamping device according to the Preamble of claim 1 for the attachment of plates and in particular transparent panes of toughened safety glass or Design multi-pane laminated glass so that through the coating on the one hand, additional safety functions can be taken over and also special electrical functions in the form of optical ones and / or acoustic signal and alarm devices and optically variable Luminous and light effects and the like are made possible.

This object is achieved in a device according to the preamble of Claim 1 according to the invention in that the plate or Glass pane at least one thin coherent electrically conductive layer Metal, metal oxide or a conductive plastic doped with foreign atoms has, and that on at least one cushion of the two jaws Clamping device is arranged a number of electrical contact surfaces make a conductive contact with the layer on the glass pane.

The fact that the clamped between the jaws or Glass pane has at least one electrically conductive layer, and that also on at least one cushion of the clamping devices used electrical contact surfaces are arranged, which make conductive contact with the or the electrically conductive layers on the plate, glass pane, Manufacture glass partition or the like, there are many Possibilities to add to the glass panes or glass partitions fall protection functions also for further safety measures as well as for optical and / or acoustic information, signal and To use alarm devices as well as advertising information media. So can the electrical contact surfaces, for example with electrical and / or acoustic safety and alarm devices. The Glass panes can be coated with electrically conductive materials be divided into several fields, for example on touches respond to access permissions or the like at entrances and Check gates. Can also by the electrically conductive Layers of information taken from disks and be forwarded, the electrical contact between the conductive layers and those present on the clamping devices electrical contact surfaces are of particular importance to a perfect signal transmission without impairing the mechanical Ensure properties of the clamping devices.

Particularly advantageous developments of the invention result from the Claims 2 to 24.

So it is extremely advantageous for a perfect contact if the Contacts or contact surfaces across the surface of the cushion against the Plate protrude only slightly, so that when tightening the Clamping jaws without impairing the clamping effect of the cushion in one come into conductive contact with the associated electrically conductive layer.

The contact surfaces are expediently designed to be resilient and engage fastening legs angled in relation to the contact plane in preferably slot-shaped recesses on the cushion.

The contact surfaces can be round, polygonal or strip-shaped.

The contact can also be improved in that the Contact surfaces are arched against the conductive layer.

The contact surfaces can be with the angled mounting legs have a U-shaped cross section.

But you can also use an angled mounting leg have a T or L-shaped or other shaped cross section and also have a contact tongue which resiliently lies against the conductive layer.

A particularly advantageous embodiment also results from the fact that the contact surfaces are glued to the pad on the jaw.

The contact surfaces can also partially in a recess on the cushion be let in and by the elasticity of the cushion against the conductive Layer to be pressed on the glass pane or plate.

In a first advantageous embodiment, the contact surfaces can be made of a thin self-adhesive conductor track made of copper or another suitable contact material, it being for connection to a Connection line is still advantageous if the conductor track on connection-side end of the pad is angled downwards as a soldering tab.

In a further advantageous embodiment modified in comparison to this can the contacts or contact surfaces on the pad from a consist of electrically conductive plastic and in one piece with the cushion be formed. This not only simplifies manufacture and assembly, but also significantly increases functional reliability.

A particularly advantageous embodiment of such clamping devices further results from the fact that the conductive layer on the glass pane or plate through separation slots in several independent from each other Baffles is divided, and that at the ends of the baffles Clamping devices with one corresponding to the number of guide surfaces electrical contact surfaces are arranged, which have an electrical Connection line and a switching device for a controlled, selective Wiring the individual control surfaces to an electrical power source in this way are connected so that the individual control surfaces are each independent can be switched on and off from each other. The conductive layer is preferred transparent, but can also be tinted or in another as required be trained appropriately, as far as the security requirements of connected consumers is sufficiently taken into account.

For plates made of an electrically conductive material, such as sheet steel or the like, the plate can be suitably with an electrically non-conductive Material, such as plastic in particular, as a carrier for the conductive layer be coated.

Fig. 1

eine zwischen zwei Klemmbacken eingespannte Glasscheibe aus Einscheiben-Sicherheitsglas, Verbundsicherheitsglas oder Verbundglas mit einer elektrisch leitfähigen Schicht, wobei die beiden Klemmvorrichtungen für die Befestigung der Glasscheibe an den Pfosten beispielsweise einer Brüstungskonstruktion montiert sind,

Fig. 2

einen vergrößerten Teilschnitt durch eine der beiden Klemmbacken einer Klemmvorrichtung mit der eingespannten Glasscheibe,

Fig. 3

einen gegenüber Fig. 2 nochmals vergrößerten Teilschnitt durch eine erste Ausführungsform eines Kontaktteiles mit einer elektrischen Kontaktfläche am Polster der Klemmbacke,

Fig.4

eine demgegenüber abgewandelte zweite Ausführungsform des Kontaktteiles,

Fig. 5

eine weitere abgewandelte Ausführungsform des Kontaktteiles,

Fig. 6

ein weiteres Kontaktteil mit einer gewölbten Kontaktfläche und einem seitlichen Befestigungsschenkel,

Fig. 7

ein im Querschnitt U-förmiges Kontaktteil mit einer ebenen Kontaktfläche und zwei seitlichen Befestigungsschenkeln,

Fig. 8

ein Fig. 6 entsprechendes Kontaktteil mit einer ebenen Kontaktfläche,

Fig. 9

ein im Querschnitt T-förmiges Kontaktteil mit einem mittigen Befestigungsschenkel und einer ebenen Kontaktfläche,

Fig. 10

ein Kontaktteil mit einem einseitigen Befestigungsschenkel und einer davon abgewinkelten federnden Kontaktfläche,

Fig. 11

ein aus zwei Kontaktteilen gemäß Fig. 10 bestehendes Kontaktteil mit mittigem Befestigungsschenkel und zwei davon T-förmig zur Seite gerichteten federnden Kontaktflächen,

Fig. 12

ein im Querschnitt U-förmiges Kontaktteil mit zwei parallelen Befestigungsschenkeln und einer von den Befestigungsschenkeln seitlich hervorstehenden ebenen Kontaktfläche,

Fig. 13

ein im Querschnitt T-förmiges Kontaktteil mit einer ebenen Kontaktfläche und einem mittigen, endseitig verdickten Befestigungsschenkel,

Fig. 14

einen Teilschnitt durch eine am Polster der Klemmbacke befestigte selbstklebende Leiterbahn aus Kupfer mit einer ebenen Kontaktfläche,

Fig. 15

einen Längsschnitt durch die selbstklebende Leiterbahn, die am rückwärtigen Ende des Polsters als Lötfahne zur Verbindung mit einer Anschlußleitung abgewinkelt ist,

Fig. 16

eine Draufsicht auf ein Polster mit mehreren unterschiedlich geformten Kontaktflächen und

Fig. 17

eine perspektivische Ansicht einer Klemmbacke einer Klemmvorrichtung mit mehreren elektrischen Kontaktflächen und Kabelanschluß, wobei das Kabel an der Basis der Klemmvorrichtung durch eine Zugentlastung gesichert ist,

Preferred embodiments of the invention are shown schematically in the drawing. Show it

Fig. 1

a glass pane of single-pane safety glass, laminated safety glass or laminated glass clamped between two clamping jaws with an electrically conductive layer, the two clamping devices for fastening the glass pane being mounted on the posts, for example of a parapet construction,

Fig. 2

an enlarged partial section through one of the two jaws of a clamping device with the clamped glass pane,

Fig. 3

2 a partial section enlarged again compared to FIG. 2 through a first embodiment of a contact part with an electrical contact surface on the pad of the clamping jaw,

Figure 4

a modified second embodiment of the contact part,

Fig. 5

another modified embodiment of the contact part,

Fig. 6

another contact part with a curved contact surface and a lateral fastening leg,

Fig. 7

a cross-sectionally U-shaped contact part with a flat contact surface and two lateral fastening legs,

Fig. 8

6 corresponding contact part with a flat contact surface,

Fig. 9

a cross-sectionally T-shaped contact part with a central fastening leg and a flat contact surface,

Fig. 10

a contact part with a one-sided mounting leg and an angled resilient contact surface,

Fig. 11

10, a contact part consisting of two contact parts according to FIG. 10 with a central fastening leg and two resilient contact surfaces of which are oriented in a T-shape,

Fig. 12

a cross-sectionally U-shaped contact part with two parallel fastening legs and a flat contact surface protruding laterally from the fastening legs,

Fig. 13

a cross-sectionally T-shaped contact part with a flat contact surface and a central fastening leg thickened at the end,

Fig. 14

a partial section through a self-adhesive copper conductor track attached to the pad of the clamping jaw with a flat contact surface,

Fig. 15

2 shows a longitudinal section through the self-adhesive conductor track, which is angled at the rear end of the cushion as a soldering lug for connection to a connecting line,

Fig. 16

a plan view of a cushion with several differently shaped contact surfaces and

Fig. 17

2 shows a perspective view of a clamping jaw of a clamping device with a plurality of electrical contact surfaces and a cable connection, the cable being secured to the base of the clamping device by a strain relief,

The clamping device 1 shown in the drawing is used to attach Plates and in particular transparent glass panes 2 with two on the side Edge of the glass pane 2 attachable pairs of jaws 3, which at their Pads 4 of elastomeric material which lie against the glass pane on the inside Have material and at least one clamping screw below Inclusion of the glass sheet 2 are clamped against each other.

For the sake of simplicity, only one of the two clamping jaws 3 is shown in FIG. 2 shown with a base part 5 standing at right angles to this clamping jaw, that by means of a fastening screw 6 on a vertical wall or on a post 7 or the like can be attached.

Place the pads 4 attached to the inside of the two jaws 3 to the edge of the glass pane 2 to be fastened from the outside.

As can also be seen in the drawing, the glass pane 2 has at least one thin, coherent, electrically conductive outer layer 8 made of metal, metal oxide or a conductive doped with foreign atoms Plastic on that according to the representations of FIGS. 1 and 2 by at least a longitudinal separation 9 into at least two interconnects separated from one another 10 and 11 is divided. The separations can be varied geometrically be trained so that depending on the variety of separations and created Contacts maximum actions in or on the glass pane 2 are possible.

As shown in particular in FIGS. 1 and 2, there are at least one cushion 4 of the jaws 3 contact parts with electrical contact surfaces 12, 12a or 13, 13a arranged, which have a conductive contact with the or Produce electrically conductive layers 8 on the glass pane 2.

The contact surfaces 12, 12a and 13, 13a are, as in Fig. 3 to 17 in individual can be seen on the surface of the cushion 4 against the Glass pane 2 only slightly, so that when tightening the Clamping jaws 3 without impairing the clamping effect of the cushion 4 in come into conductive contact with the associated conductive layer 8.

The contact parts with the contact surfaces 12, 12a and 13, 13a are in Wells 14 arranged on the cushion 4 and according to FIGS. 3 to 6 and 10 and 11 in a possible embodiment are resilient, so that they when clamping the two jaws 3 in a flat contact get with layer 8.

To ensure flawless and permanent contact with layer 8 ensure that the contact parts are also opposite to the Contact surfaces 12, 12a, 13, 13a angled legs 15, 15a in perforated or slot-shaped recesses 16, 17 embedded in the cushion 4.

The contact surfaces 12, 12a, 13, 13a are preferably strip-shaped but also trained in all other forms as needed and against that Layer 8 should be curved in such a way that when the clamping jaws are tightened 3 on the one hand with their legs 15, 15a in the recesses 16, 17 on the Cushions 4 pressed in, but also flattened in order to to further improve electrical contact to the layer 8.

The contact parts with the contact surfaces 12, 12a, 13, 13a have, as in FIG. 3 and 17 is shown, suitably a U, T, L-shaped or otherwise shaped suitable cross section.

4, the contact parts can also be adapted to the conductive ones Layer 8 have resilient contact tongue 18 and expediently so be designed so that they have at least one in the slotted cushion 4th engaging leg 15 with one of them parallel to the clamping surface of the Upholstery 4 have angled longitudinal web 19 which on the pad 4 in one Recess 14 laterally next to the slot-shaped recess 16 for the Leg 15 rests, the resilient contact tongue 18 preferably in an angle of approximately 170 to 180 ° against the longitudinal web 19 in the direction is bent back on the leg 15.

The conductive layer 8 can on the glass pane 2 through separation slots 9 in a plurality of mutually independent guide surfaces 10, 11 can be subdivided, with the ends of the guide surfaces each clamping devices 1 with one of the number the electrical contact surfaces 12, 12a, 13, 13a corresponding to the guide surfaces are arranged, which have an insulated connecting line 20 and Switching device for controlled, selective wiring of the individual Control surfaces can be connected to an electrical power source in such a way that the individual guide surfaces 10, 11 each independently can be switched off. This is only a particularly advantageous one Embodiment called, of course, the most varied practical designs are conceivable.

As can also be seen in FIG. 2, each clamping device 1 instructs a base part 5 on a jaw 3 at least one bushing 21 for at least one fastening screw 6 and laterally offset one further implementation 22 for a connecting line 20 for the power supply to the contact parts arranged on the cushion 4 of the relevant jaw 3 on. A wide variety of cable entries are also possible here, whereby it is mainly important that the cable entry during assembly the clamping device on a post or the like is not a hindrance and does not appear visually disruptive.

In the further exemplary embodiments shown in FIGS. 6 to 13, the Contact parts formed with the contact surfaces 12 similar to those in FIGS. 3 and 5. 6 shows a contact part with a curved contact surface 12 and one lateral fastening leg 15 in a recess 14 on the pad 4. In Fig. 7 is the contact part in cross section U-shaped with two parallel Fastening legs 15, 15a and a flat contact surface 12 also in a recess 14 on the cushion 4 shown. 8 and 9 are both Contact parts with flat contact surfaces 12 arranged in depressions 14 and with angled fastening legs 15 in hole or slot-shaped Cutouts on the cushion 4 secured.

10 and 11, the contact parts each have resilient contact surfaces 12 in Indentations 14 on the pad 4, while the contact parts in FIGS. 12 and 13 again have flat contact surfaces 12, once with a cross-section U-shaped angled fastening legs 15, 15a and the other with only a central fastening leg 15, which has an end Thickening 15b is secured in a holding slot on the cushion 4.

In the further exemplary embodiments of FIGS. 14 and 15, the Glued contact surface 12 on the pad 4. It consists of a thin one self-adhesive guiding surface or conductor track made of copper or another suitable contact material and is at the connection end of the cushion 4th angled downwards as a soldering lug for a connecting cable 20.

16 shows a cushion 4 with several contact surfaces of different sizes 12 and 13, of which the two larger contact surfaces 12 e.g. as Load contacts for lamps and the smaller contact surfaces 13 for Data transmission can serve. The number and size of the guide and Contact areas always depend on the application. The bigger the switched load, the larger the contact areas. The shape of the Contact areas can then be selected accordingly.

The contact surfaces 12, 13 on the cushion 4 can be in a special advantageous embodiment according to FIG. 16 also from an electrical conductive plastic exist and conveniently integrated into the pad 4 and be integrally formed with this.

17 finally shows a clamping jaw 3 of a clamping device 1 a plurality of narrow contact surfaces 13 which are connected to a connecting line 20 are connected, in a bushing 22 on the base part 5 by a Strain relief 22a, which clamps the connecting line Rubber sleeve is secured.

List of reference numbers

1

clamping device

2

Plate or sheet of glass

3

jaws

4

pad

5

base

6

fixing screw

7

Wall, post or the like

8th

electrically conductive layer

9

Longitudinal or separating slot

10

Guide surface (transparent)

11

Guide surface (transparent)

12

electrical contact surface

12a

electrical contact surface

13

electrical contact surface

13a

electrical contact surface

14

deepening

15

fastening leg

15a

fastening leg

15b

end thickening

16

slot-shaped recess

17

slot-shaped recess

18

contact tongue

19

longitudinal web

20

insulated connection cable, cable

21

execution

22

execution

22a

Strain relief

23

solder tail

Claims (24)

Clamping device for fastening plates and in particular transparent glass panes (2) with two pairs of clamping jaws (3) which can be attached to the side edge of the glass panes and which have pads (4) made of elastomeric material on the inner sides of the glass pane (2) and by at least a clamping screw including the glass pane (2) can be clamped against one another, characterized in that the plate or glass pane (2) has at least one thin, coherent electrically conductive layer (8) made of metal, metal oxide or a conductive plastic doped with foreign atoms, and in that At least one of the two clamping jaws (3) of the clamping device (1) has a number of electrical contact surfaces (12, 12a, 13, 13a) which make a conductive contact with the layer (8) on the glass pane (2). Clamping device according to claim 1, characterized in that the contact surfaces (12, 12a, 13, 13a) are located on at least one cushion (4) of the two clamping jaws (3). Clamping device according to claims 1 and 2, characterized in that the contact surfaces (12, 12a, 13, 13a) protrude only slightly from the surface of the cushion (4) against the glass pane (2), so that when the clamping jaws (3) are tightened come into conductive contact with the conductive layer (8) without impairing the clamping effect of the cushion (4). Clamping device according to one of claims 1 to 3, characterized in that the contact surfaces (12, 12a, 13, 13a) are resilient. Clamping device according to one of claims 1 to 4, characterized in that the contact surfaces (12, 12a, 13, 13a) with fastening legs (15 or 15a) angled with respect to the contact plane in preferably slot-shaped recesses (16 or 17) on the cushion ( 4) intervene. Clamping device according to one of claims 1 to 5, characterized in that the contact surfaces (12, 12a, 13, 13a) are round, polygonal or strip-shaped. Clamping device according to one of claims 1 to 6, characterized in that the contact surfaces (12, 12a, 13, 13a) are arched against the conductive layer (8). Clamping device according to one of claims 1 to 7, characterized in that the contact surfaces (12, 12a, 13, 13a) with the angled fastening legs (15, 15a) have a U-shaped cross section. Clamping device according to one of claims 1 to 7, characterized in that the contact surfaces (12, 12a, 13, 13a) each with an angled fastening leg (15) have a U-, T-, L-shaped or other shaped cross section. Clamping device according to one of claims 1 to 9, characterized in that the contact surfaces (12, 12a, 13, 13a) have a contact tongue (18) which resiliently lies against the conductive layer (8). Clamping device according to claim 10, characterized in that the contact surfaces (12, 12a, 13, 13a) have at least one fastening leg (15) engaging in the slotted cushion (4) with a longitudinal web (19) angled parallel to the clamping surface of the cushion (4) ) have, which rests on the pad (4) laterally next to the slot-shaped recess (16 or 17) for the fastening leg (15), and that the resilient contact tongue (18) at an angle of approximately 170 to 180 ° against the longitudinal web in Is bent back towards the mounting leg. Clamping device according to claim 10 or 11, characterized in that the resilient contact tongue (18) is arched against the conductive layer (8). Clamping device according to one of claims 1 to 12, characterized in that the contact surfaces (12, 12a, 13, 13a) are glued onto the cushion (4) on the clamping jaw. Clamping device according to one of claims 1 to 13, characterized in that the contact surfaces (12, 12a, 13, 13a) are partially let into a recess (14) on the cushion (4). Clamping device according to one of claims 1 to 14, characterized in that the contact surfaces (12, 12a, 13, 13a) are pressed against the conductive layer (8) on the plate (2) by the elasticity of the cushion (4). Clamping device according to one of claims 1 to 15, characterized in that the contact surfaces (12, 12a, 13, 13a) consist of a thin self-adhesive conductor track made of copper or another suitable contact material. Clamping device according to claim 16, characterized in that the conductor track at the connection-side end of the pad (4) is angled downwards as a soldering lug (23). Clamping device according to claim 1, characterized in that the contact surfaces (12, 13) on the cushion (4) consist of an electrically conductive plastic and are integrated in the cushion (4). Clamping device according to claim 18, characterized in that the contact surfaces (12, 13) are formed in one piece with the cushion. Clamping device according to Claim 1, characterized in that the conductive layer (8) on the glass pane (2) is divided into a plurality of mutually independent guide surfaces (10, 11) by separating slots (9), and in that clamping devices (1) at the ends of the guide surfaces with a number of electrical contact surfaces (12, 12a, 13, 13a) corresponding to the number of guide surfaces (10, 11), which are connected via an electrical connecting line (20) and a switching device for controlled, selective connection of the individual guide surfaces (10 , 11) are connected to an electrical power source in such a way that the individual guide surfaces can be switched on and off independently of one another. Clamping device according to one of the preceding claims, characterized in that the conductive layer (8) is transparent, tinted or in another suitable manner. Clamping device according to claim 1, wherein the plate (2) to be held consists of an electrically conductive material, such as sheet steel or the like, characterized in that the plate with an electrically non-conductive material, such as in particular plastic, as a carrier for the conductive layer ( 8) is coated. Clamping device according to the preceding claims, characterized in that each clamping device (1) on a base part (5) on one of the two clamping jaws (3) laterally next to at least one passage (21) for at least one fastening screw (6) has a further passage (22) for a connecting line (20) for the power supply to the contact surfaces (12, 12a, 13, 13a) arranged on the cushion (4) of the relevant clamping jaw (3). Clamping device according to claim 23, characterized in that the connecting line or the cable (20) in the feedthrough (22) is secured by a strain relief (22a).

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