DE7615220U1 - SECURING DEVICE, ESPECIALLY FOR ARTWORKS - Google Patents

Description

12 108 B / sw

Siegfried Körner
Industriestrasse 15 7025 Plattenhardt

Safety device, in particular for works of art

The invention relates to a securing device for fixedly attached objects, in particular works of art, like statues, pictures and the like. In recent times, regrettably, art theft is becoming more common more often, with churches and museums being particularly affected. For this reason it is necessary to do this

often priceless and mostly irreplaceable art objects to be secured accordingly. This is that too Object of this invention. The safety device according to the invention but can also be used for all other objects that are attached to any fixed stands that are in a fixed location and that have not been taken away by unauthorized persons should be.

Various designs of security devices are already known, but these are mostly room security devices that give an alarm at the moment when a person unauthorizedly enters a room via a door, window, light shaft or the like. There are also security devices known that ansnrechen when the thief od through his body a visible or invisible beam directed against the object to be protected. Dpi. interrupts. If, however, the figure can be easily removed in such a case, the thief manages to flee with the work of art or, more generally speaking, with the object to be protected, in spite of the alarm system being triggered.

The object of the present invention is therefore seen in the provision of a safety device for stationary

brought objects, especially for works of art, to create that directly protect the object, the This means that an alarm is triggered the moment it is unauthorizedly moved away from its location. The sighting device should be neither be visible from the outside nor can they be undermined by any manipulation, As is the case, for example, with security devices with a light beam and a photocell or in analog Way working safety devices is the case.

To solve this problem, a safety device according to the preamble of claim 1 is proposed and it is according to the invention according to the characterizing part of claim 1 formed. Depending on its cross-section, the sliding member can either only one Perform a longitudinal movement or, in the case of a circular cross-section, also perform a rotary movement. The switching device is designed so that it both in a rotation and a longitudinal movement of the sliding member responds, with a minimal angle of rotation or a slight displacement movement being sufficient. The switching device is connected to an alarm device, which is triggered by the undesired movement of the person to be protected Object caused switching process accordingly

utilized in its construction. For example, an optical and / or acoustic alarm can be triggered will. It is also conceivable to automatically lock all entrances to the room or to take other measures Prevention of escape and / or to be triggered automatically to establish the identity of the thief. Normalerveise the switching device has working contacts, so that the alarm is also triggered when the electrical Feed lines to the switching device is triggered. Additionally or alternatively, idle contacts are also conceivable or the attachment of a switching device with changeover contacts. Which contacts and how much to use, depends on the type of alarm device (s) or other means controlled by the switching device. It is It is easily conceivable to have several such safety devices, each of which secures an object a common monitoring electronics are connected, which in turn provide the necessary to ward off theft Measures initiated.

The construction of the sliding element can be adapted to the object to be monitored and it is quite conceivable that it is formed in two or more parts, so that the one to be connected directly to the object to be protected

Part of the displacement member can be designed according to the object. The same applies to training of a housing or the like on the other hand, it should nevertheless not be visible or attackable from the outside. For example, it can be walled into a wall, screw tight or hold by other known means. In addition, the switching path must be comparatively short, so that the safety device responds to cautious theft actions. On the On the other hand, however, it must also be prevented that any unavoidable vibrations cause an alarm is triggered.

A preferred embodiment of the invention exists in that to form the switching device, the sliding member preferably has a magnet at its free end, especially permanent magnets, which carries with at least a stationary reed relay attached to the switching device interacts. As soon as the distance of the Magnet of the assigned reed relay or relays changes, it performs or they perform a switching process that either used directly for the alarm or else to an electronic monitoring system for evaluation

can be given. Due to the rigid connection between the object to be protected and the sliding member, each longitudinal displacement and / or rotation of the sliding member has a relative movement of the magnet to its reed relay and thus the response of the latter to the FoI ^ e. If you place the safety device, for example, in a console and fasten the sliding member inside a statue standing on the console, the alarm can be triggered when the figure to be protected is raised the slightest. Here, the alarm ^T abe quite another room done so that at r thief "arnicht is conscious because" he alarm has been triggered. Jas is particularly advantageous if one provides a further development of the invention, which is characterized by "; the displacement"! IecL at least partially made of Lisen or a ferrous material and thickened his inner hands or stranded with an outer collar or the like is further dais the thinner shaft portion of the _shippin:; ove ~ song at least one transverse he his Verschieberichtun ^'1 ^ e-Barer magnet, preferably permanent magnet, but in particular two 180 ° staggered magnets are associated with the or its holder with the thickened internal charging of the displacement member a mechanical protection against complete withdrawal form. Here must at least

but that part of the shaft to which the magnet or magnets are assigned consist of iron or ferrous material. As a result, the two magnets adhere to the associated shaft part and thereby prevent or make it more difficult to pull the sliding element out of the safety device. As already explained, the switching function comes into operation after a short displacement path of the displacement element. If you now pull the sliding member out indirectly via the object to be secured, the thickened end finally strikes against the magnet or magnets or their holders, which are anchored in the securing device in such a way that they act as a purely mechanical lock for the vprrH r. ktp FnHp dp? Vpr <; rh i phpal i *> r) p <; hiirlpTi Rs needs some time and effort, possibly complete destruction of the safety device, in order to overcome this mechanical resistance and also to get the thickened end out of the rest of the safety device. The time required for this should generally be sufficient to catch the thief. If the alarm system is designed in such a way that the thief can determine the alarm himself, he will let go of the object at the moment when he notices that, in addition to the alarm system, there is also a mechanical object security device. It is particularly useful that

the magnets in one or one guide each of the safety device are displaceably guided and in particular each fastened in a holder. The sliding guide allows the magnet or magnets to be brought out of the path of movement of the thickened inner sliding link end and thereby allowing an authorized person to completely pull out the sliding member from the safety device to enable. Of course, the switching device will also respond in this case, so be it because that it was switched off beforehand. Should the object to be protected then be reinstalled then you put the sliding link back into the

then automatically back to the thinner shaft part.

Another variant of the invention is characterized in that the displacement member is at least partially tubular is formed and made of magnetically neutral material that is also inside the sliding member at least one reed relay is located, which is connected to at least one magnet fixed to the housing, preferably permanent magnet, forms the switching device. So here we have exactly the opposite version, namely at least one stationary magnet installed in the safety device and a reed that can be moved together with the sliding element

Relay. When the object to be protected is shifted or rotated, there is a relative movement between the reed relay and the magnet, which triggers the switching or switching. In in this case, of course, the electrical connections connected to the reed relay must control the movements and, if necessary, also allow the intended complete pulling out of the sliding member. At this point it should also be added that all other known switching devices are also used in all embodiments can be used. So it is easily conceivable, in the simple case, the inner end of the To let the sliding member rest on the actuator of a switch, which in the moment a circuit takes place in which the sliding member is moved away from the switch by a predetermined amount. In the same way Known proximity switches and other known switches working on an inductive or capacitive basis can also be used, Find use. Even the use of pneumatic or hydraulic switching devices is not excluded, however, the latter only come into question if compressed air or hydraulic fluid is at the location of the object to be protected is available anyway.

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Another embodiment of the invention consists in that the sliding member thickens at its inner end Or with an outer collar Device inner collar forms a mechanical safeguard against complete pulling out of the sliding member. This mechanical safeguard is comparable with the one already explained above in terms of its mode of operation.

According to an expedient development of the invention, the cover or the like also forms a holder for the or the magnets of the switching device. In this case, too, the holder can move the or the Allow magnets perpendicular to the longitudinal axis of the sliding element. Another feature of the invention is in that the thickened end of the sliding member in the normal position by means of a locking device is fixed is held. The holding force of the latter is to be chosen so that the sliding member only when relatively strong force can be disengaged. In addition, this embodiment has the advantage that starting from the locked position, the switching device both when pushing in and pulling out the Shifting member responds. This can also be done with the

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Reach the safety device described above, in which a stationary reed relay with a magnet cooperates, but then the reed relay must not lie in the path of movement of the displacement member, rather it must be attached to the side of it. The magnet must then also be installed accordingly.

According to another embodiment of the invention, the latching device is characterized in that it is like a snap formed, in particular in the thickened sliding member end a spring-loaded ball in the radial direction is displaceable, which with a recess, primarily an annular groove of the bearing sleeve for the sliding member end, cooperates. Accordingly, this locking device is still effective even when the locking member is rotated, although the switching device already responds or can respond.

A more preferred embodiment of the invention is seen in the fact that the free, in particular thickened End of the sliding element of a first securing device, in the housing or the like of a second securing device intervenes, the displacement member offset by about PO to that of the first safety device is movable, the first safety device with

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a wall mounting device and the second with a fastening device for the object to be secured are provided. Such a double safety device is used, for example, when the object to be protected is on a console that has is attached to a wall. The wall then receives the first securing device while in the console the second safety device is installed. The sliding member of the first safety device penetrates while the part of the console located between the two securing devices, while the sliding member the second securing device, as described, with the object to be secured, for example a statue, is firmly connected. Both when lifting the object to be protected and when trying to remove the console from the wall pulling out, at least one of the safety devices will respond each time. With oblique The action of force on the object and the console can easily both safety devices in action step.

A further development of the invention provides that the thickened end of the sliding member of the first safety device by means of a compression spring in the housing of the second

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Safety device supported against the pull-out direction is. It is proposed in particular that the thickened end of the sliding member of the first Sicnerungsvorrichtung is assigned to an inner surface of the second securing device at a small distance or rests against it and that both associated or abutting surfaces are in particular flat, that of the first securing device and that of the second securing device runs parallel to the longitudinal axis of its displacement member. As soon as you have the second securing device or at least the part, the inner surface of which is the free end of the sliding member assigned to the first safety device, rotates or tilted, presses this inner surface onto the free End of the Vevschiebeglieds the first safety device, and this then gives way against the force of its compression spring the end. The switching device is then activated in the first safety device.

Two exemplary embodiments of the invention are shown in the drawing. Show it:

Figure 1 ejnen vertical Länpsmit.tel section through a

first embodiment of the invention, FIG. 2 shows a section along the line H-II of FIG. 1,

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FIG. 3 two combined into one unit Security devices of various Type of execution in a vertical longitudinal section,

FIG. 4 shows a section along line IV-IV of Fijr. 3.

In the exemplary embodiment in FIG. 1, there is the one to be secured Object 1, for example a statue, on a console or a: base. The console can be attached to a wall, for example. The safety device 3 has a clay-shaped housing 4, which is

r.ian es - as in the exemplary embodiment - with circumferential Annular grooves or in some other way provided with an irregular surface, so you can the housing in the console also fix by means of casting resin or the like, in which case the hole in the console must be larger than the outer diameter of the housing 4. In the internal thread 5 of the housing 4, a cover 6 is screwed, which the Has the shape of an upside-down pot. It has a central bore 7 for the sliding member 8, the inner end of which has an enlarged cross-section, preferably of circular shape. The diameter of the Bohrun? 7 is chosen so that this thickened inner

The end 9 of the sliding member 8 can be pushed through. That- }

The same applies to the inner diameter 10 of a pot-shaped device part 11, which is located on the underside its edge of the pot is supported on a ring 12 which is snapped into a groove in the cover 6. In the gap between the The upper end of the device part 11 and the inner surface of the cover 6 parallel thereto are two magnets 14 and 15 mounted displaceably transversely to the longitudinal axis of the sliding member 8. These are permanent magnets of disk-shaped shape with an arcuate recess adapted to the cross section of the sliding member 8 18 and 19. The gap 13 has, as FIG. 2 shows, two parallel flanks 20 and 21, which are a sliding guide for the magnet holders 16 and 17 and thus also the magnets 16 and 15 form. In this sliding guide, the Move magnets in the direction of arrows 22 and 2.3 so far that they are out of the range of motion of the thickened inner The end of the sliding member 8 come. Since the sliding link is made of iron, the magnets usually take the 1 position shown in FIG. Accordingly, they can only be released by mechanical or magnetic action move outwards. The safety device according to the invention includes, in a very advantageous manner, an auxiliary device with two magnets whose force is sufficiently great

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is to act even through the console, the housing 4 and the edge of the cover 6 on the magnets and win To pull them outwards due to the corresponding polarity. One use of this auxiliary device is of course only provided when the object to be secured, for example a figure of a saint, is for restoration purposes Or should be removed from the console for other reasons. In any other case one can use the object raise only until the thickened inner end 9 comes to rest on the holder 16 or 17. So form the thickened inner end 9 and the magnets or their holders 16 and 17 a mechanical safeguard for the object 1. The latter is also firmly connected to the sliding member 8

neither directly into a thread of the object or else can be screwed into a threaded bushing 25 (Fig. 3) firmly connected to the object. From Fig. 1 is still possible Another fastening option emerges, the construction of which does not require any further explanation and which can easily be exchanged for another.

The sliding member 8, the thickened inner end 9 in the bore 10 of the securing device 3 in the sense

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of the double arrow 26 is slidably mounted, forms with the reed relay 27 together a switching device The reed relay has, for example, normally open contacts that remain open as long as the distance between the Underside 29 of the sliding member 8 from the reed relay 27 does not change. However, if anyone has that to be secured Object 1 increases, the distance between the bottom 29 and the reed relay 27 increases, whereby the latter carries out a switching process, so for example its contacts close. The reed relay can be in the circuit an optical and / or acoustic alarm system that triggers an alarm when the switching process mentioned. Suitable electrical means can be used to prevent the The circuit is reopened and the alarm is set. In addition, the reed relay can also be used Make contacts equipped or designed as a changeover relay. It is also provided that the reed relay is connected to a monitoring electronics, which at the same time still has to be secured with several Objects can be connected. It is easy to see that one is a rotation initiated switching operation can also be achieved if the magnet is attached eccentrically to the thickened inner end or is designed accordingly. aside from that

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the reed relay 27 can also easily be mounted to the side of the thickened inner end 9. Through this Unwanted lifting and turning movements of the object to be protected can simultaneously be included in an alarm message realize. Thus, ring magnets, bar magnets, surface magnets and any other shape can be used Magnets come into use.

In the embodiment of Figures 3 and 4, two safety devices of the type described above combined to form a double safety device. The 'drawn in the right half of the picture corresponds to Unit about the safety device according to Figures 1 and 2, so that a more detailed description is unnecessary One recognizes in this right half of the picture in Fig. 3 the plate-like inserted into the thickened inner end 9 " Permanent magnets 30. In addition, the connecting wires to the reed relay and the electrical lead out to the outside Line 31 is shown, it being easy to see that the right half of the figure is a cut acts, which runs perpendicular to the plane of FIG. 1 LJm the electrical part against moisture and the To protect mechanical parts against contamination, a sealing ring 33 is inserted into an annular groove in the disk 32

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• till ·· · «

It I I * ■

Il ti · · * ·

I. | ι · · · · CII

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which rests on the inner wall of the housing 4. The disc 32 is supported on a shoulder of the sliding member

The sliding member 34 of the left securing device is drilled through centrally from both sides. In the in Fig. 3 left hole is a reed relay 27, which with a permanent magnet designed as an annular disc 30 cooperates, which concentrically surrounds the sliding member 34, but is held stationary in the housing 4 is. In this case, the reed relay is moved relative to the magnet, in contrast to the execution of the right half of Fig. 3 or the embodiments shown in Figures 1 and 2. For this reason this securing device is preferably mounted in a corresponding hole or receptacle in a wall 35. If the free end 36 is connected to the object to be secured, the securing device responds as soon as one tries to tear the object to be secured from the wall. When using a differently designed permanent magnet nan can also trigger an alarm if the object to be protected is attempted to rotate.

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«···· ■ ·« ■ ft · ■. f-

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The thickened inner end 9 of the sliding member 34 receives a spring-loaded ball 37, which has an annular groove 38 of the housing 4 together form a snap-in locking device 39. This is important to an accurate Assignment of the reed relay 27 to the magnet 30 to be achieved. Incidentally, you can also see the in the left half of the picture electrical line 40 with its corresponding connections to the reed relay 27. There is also the sealing ring relocated to the sliding member 34.

A thread 41 is cut into the right-hand central bore of the sliding member 34 and has a bolt 42 records. This penetrates a shoulder 43 of the housing of the right safety device. At the inner end of the Bolt 42 is a disk 44, which from the surrounding in the sliding link end 9 sleeve-like device part 45 has a small distance. Furthermore, between the disc 44 and the inner collar 46 of the Approach 43 a compression spring 47 is used. This means that these two safety devices are mechanically connected to one another coupled. In this particular case, as already mentioned, the left safety device is located, for example, in FIG a building wall, while the right one is embedded in a console on which the object to be protected stands.

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From the outside there is neither one nor the other safety device and no electrical lines to be seen either.

This double safety device speaks practically? r.ch on

any unwanted movement of the object to be protected. Even if the object tilts, it can to that extent come to the alarm, as the device part 45 on the disk 44 pushes, which in turn causes a longitudinal displacement of the sliding member 34 and thus a triggering of the switching device 48 caused. The latter speaks both with the back and forth movement of its sliding member 34 at. The thickened end 9 of the sliding plate 34 forms with the frame 49 for the permanent magnet 30 mechanical protection against complete pulling out of the sliding member with the mechanical protection the right safety device is comparable. The receptacle 49 is held by the snap ring SO, which is compressed into an inner groove of the housing 4. In between there is still no disc to accommodate the already mentioned seal 35.

Claims (1)

Expectations 1. Securing device for fixed objects, especially works of art such as statues, Pictures and the like, characterized by a connectable to the object (1) to be secured, in a stationary guide (10) protruding displacement member (8, 34) with a in the area the guide attached switching device (28, 48) throws together, the normal position of the object one switching position and one shifting and / or twisting position of the object has another switching position are assigned to the switching device. 2. Apparatus according to claim 1, characterized in that to form the switching device (28, 48) the Displacement member (8) preferably a magnet, in particular permanent magnet, at its free end (J) (30) carries with at least one reed relay fixedly attached to the switching device (28) (27) cooperates. - 23 - 3. Apparatus according to claim 1 or 2, characterized in that the displacement member (8) at least partially consists of iron or a ferrous material and its inner end (9) is thickened or with an outer collar or the like is provided that furthermore the thinner shaft part of the sliding member at least a magnet that can be moved transversely to its direction of displacement (26), preferably a permanent magnet, in particular but two magnets (14, 15) arranged offset by 180 are associated with the or their holder with the thickened inner end of the sliding member a mechanical security against se ^ n complete Pull out form. 4. Apparatus according to claim 3, characterized in that the magnets (14, 15) in one or one each Guide (20, 21) of the safety device guided displaceably and in particular each in a holder (16, 17) are attached. 5. The device according to claim 1, characterized in that the displacement member (54) is at least partially tubular is formed and made of magnetically neutral material that is also inside the sliding member at least one reed relay (27) is located, - 24 - which with at least one magnet fixed to the house (30), preferably. »Auermagneten, the switching device; (4 8J forms. 6. Apparatus according to claim 5, characterized in that that the sliding ring led (34) at its inner end (9) thickened or uit an outer band or d ^ l. Mistake is the one interspersed with a shift ;> eckcl (4 9) or device inner collar one mechanical lock can be pulled out completely of the shipping member forms. 7. Apparatus according to claim 6, characterized in that da. ", the lid (49) or the like. At the same time a holder for the Me.nneten (30) of the switching device Γ4S). S. Vorricr.tune according to claim 6 or 7, characterized in that the thickened end (9) of the sliding member (45) is held in a non-sliding manner in the normal position by means of a locking device f39). 3. Apparatus according to claim 8, characterized in that the latching device (39) is designed like a snap, - 25 - in particular in the thickened sliding member end (9) a spring-loaded ball (37), in the radial direction is displaceable, which has a recess, primarily an annular groove (38) of the bearing sleeve (4) for the end of the sliding member (9) cooperates. 10. Device according to one or more of the preceding claims, characterized in that the free, in particular thickened linden (44) of the sliding member (34) of a first safety device in the housing (4) or the like, engages a second safety device; the sliding member (8) offset by about 90 to that 1. ^ 4y of the first oicnerungsvuniuaung is movable, wherein the first securing device with a wall mounting device and the second are provided with a fastening device for the object to be secured (1). 11. The device according to claim 10, characterized in that the thickened end (44) of the displacement member (8, 34) dor the first safety device by means of a compression spring (47) in the housing (4) of the second safety device is supported. - 26 - 12. The device according to claim 11, characterized in that the thickened linden tree (44) of the displacement member (34) the first securing device of an inner surface (Sl) of the second securing device with a small distance is assigned or rests on it and that both associated or abutting surfaces are in particular flat, with that of the first safety device being perpendicular and that of the second securing device runs parallel to the longitudinal axis of its displacement member (34 or 8).