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Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

Anti-theft device

The invention relates to an anti-theft device for securing objects such as cars, otorbicycleε and other valuable durables against theft.

Vehicles are a sought-after object for thieves. The owners of cars, motor bicycles, mopeds and bicycles etc. have to take more and more care to protect their vehicle from theft. For this end burglar alarms are built into cars or lock bars are installed between the gear lever and a fixed point in the car and motor bicycles, mopeds and bicycles are ensured against removal with at least two locking systems (cable or chain with lock) . These locking systems always have to be carried along with the vehicle. In the case of cars the consequence is that there are objects lying around the passenger space in an annoying way. In the case of motor-bicycles the limited luggage-space has to be used for temporarily storing the locking system. Luggage-space of that kind is usually not found in mopeds or bicycles, so that the locking systems have to then be hung onto the bicycle and often form an annoying object for the user. Besides, securing a moped/bicycle with several locking systems is quite a bother, especially if the moped/bicycle has to be fastened to a rack. In these cases the user often has to crawl in between other mopeds/bicycles, in the course of which clothing can easily be damaged or soiled. Moreover, the inconvenience which the user experiences when carrying several locking systems can result in the user choosing lighter locking systems designs, in spite of them being less effective.

It is now an object of the invention to provide an anti- theft device, which can offer a solution for the problems mentioned above.

For this purpose the invention provides an anti-theft device for objects, in particular vehicles, comprising an oblong flexible means that is provided with an attaching means, in particular an eye, at the engagement end which the user takes hold of, for attachment by means of a lock to the object, and a base member, which is intended to be attached in an anchored way to a fixed body such as a ground provided with a paving or as a wall and is provided with a receiving space for the flexible means, wherein the flexible means is incorporated with its other end in the receiving space in a permanent way and is situated with its engagement end at a location which is within reach of the user.

In the anti-theft device according to the invention the largest part of the locking systems, such as they are usually carried along by the user, are replaced by a flexible means, which is permanently attached or retained at the place of storage and which can be a cable or a chain. The user only has to have a padlock with him to be able to lock his vehicle. The cable or chain which is present in the anti-theft device according to the invention does not have to be moved and can, as a result, be a very strong construction.

In the anti-theft device according to the invention it is preferred that at the user's side the receiving space is limited by a wall, which is provided with an opening for the passage of the flexible means, wherein the engagement end of the flexible organ is shaped in relation to the passage opening so as to remain on the user's side of the wall. The engagement end will then not find its way into the receiving space and will therefore be always available to be grasped by the user. The other end is inaccessible for thieves .

It can be desirable to reduce the number of parts of the anti-theft device according to the invention which are in view or in the way as far as possible. Aesthetic reasons can underlie this, but it particularly a situation can be considered in which the anti-theft device according to the invention is incorporated in a paving, the receiving space only projecting to a small extent from the pavement. Al-though this would form an aesthetically very acceptable arrangement, the engagement ends of the flexible means which extend up to the street surface could form a risk of tripping up. To solve this the anti-theft device according to the invention is preferably made such that the base member further comprises a chamber for the engagement end of the flexible means. This chamber is preferably provided with a locking means which can be operated by the user, such as a lid, which can be placed between a position in which the engagement end is in the user's reach, and a position in which the chamber is at least substantially locked. The user only has to bend down to open the chamber and then to grasp and lift up the engagement end.

So as to reduce the danger of tripping up even further and to as far as possible preserve the aesthetic value of an (ornamental) paving, the base member with receiving space and chamber is completely recessed in the fixed body. The upper side of the chamber is then flush with the remaining ground surface. A corresponding application is possible for walls. Particularly in the embodiment of the anti-theft device according to the invention incorporated in the paving, the pavement remains substantially level, without parts projecting.

This recessed arrangement of the anti-theft device according to the invention can also be used in other situations, in which projecting parts are not desired. Here the anchoring of fencing can be considered, in which there would be no additional obstacles in the opening of the fence as a result of the recessed arrangement of the anti-theft device. Use on (historic) squares for securing stacks of terrace chairs in the summer season can also be considered. Furthermore, large public areas where objects are displayed before an event and remain unattended for a long period are worth considering. Other applications can be found in securing containers and use as cheap and handy alternative for wheel clamps for wrongly parked cars.

Preferably the chamber and the receiving space initially form loose parts, which are assembled in the anti-theft device and are therein connected to each other in a perma-nent way in the using mode. In particular if the chamber itself has the wall of the receiving space which is provided with a passage opening, the manufacture of the base member can then be easy. Moreover, a reduced number of different base members can suffice, as only the chamber, within certain ranges, has to be geared to a certain weight/strength of the flexible means, which is reflected in the desired cross section of the passage opening.

At its other end the flexible means can be fixedly attached to the base member. It is preferable, however, to have the flexible means substantially separate from the base part, to which purpose the other end of the flexible means is designed in relation to the passage opening so as to remain on the side of the wall turned away from the user's side. Hereby almost the complete length of the flexible means can be used, while installation operations and means can be saved on.

To prevent the flexible means coming to rest for a large part of its length outside the receiving space and then forming a risk for, among others, pedestrians, preferably in the anti-theft device according to the invention means are provided for teήsioning or urging the flexible means in a direction towards the receiving space. In case the receiving space is directed substantially vertically, the flexible means can be provided with an additional weight, but in most cases using the own weight of the flexible means, especially if this has the form of a chain, will suffice. If the receiving space is incorporated in a wall and then in most cases projects horizontally, the force of gravity cannot be utilized, and the tensioning means will be designed as a spring, of which the one end is attached to the base member and the other end is attached to the flexible means.

The invention will now be explained on the basis of the following discussion of a number of merely exemplary embodiments shown in the accompanying drawing, in which:

figure 1 is a vertical cross section of a first preferred embodiment of the anti-theft device according to the invention;

figure 2 is a detail of the device shown in figure 1, relating to the chamber located at the top;

figure 3 is a schematic example of an application of the device according to figure 1;

figure 4 is a partially cut-away perspective view of a second embodiment of the device according to the inven-tion; and

figure 5 is a partially cut-away view of a third embodiment of the device according to the invention.

The anti-theft device 1 which is shown in figure 1 is accommodated in the ground 2, which can, for example, be built up of sand and is covered by pavement 3, for example paving brick. The anti-theft device 1 comprises a base member 1', which comprises a concrete body 4 and a vertical steel sleeve 7 accommodated therein. The concrete body 4 is made of one piece and comprises a frusto-conical or pyramid shaped lower part 5, which for anchoring purposes is provided with a casing surface turned slantwise upwards, and a plate-shaped upper member 6, the top of which is flush with the top of the paving bricks 3.

The steel sleeve 7, which can be square or circular in cross section, is treated against rust and is attached to a baseplate 8, which projects laterally so as to engage behind the lower side of the concrete lower member 4 and thus prevent the sleeve from being pulled up out of the concrete body, and is provided with drainage holes 9, for drainage of rainwater which has got into the sleeve to the ground 2.

In the side walls of the sleeve 7 holes 32 are arranged, through which one or two steel rods 31 extend. These rods 31 extend through the concrete member 5 and into the ground for providing an anchorage.

Alternatively, the plate 8 could be omitted, in which case the rods 31 would then ensure that the sleeve is retained in relation to the concrete body.

On the top the sleeve-shaped receiving space 7 is bounded by a box or upper chamber which itself is bounded by a bottom 11 and a peripheral wall 15. Vide also figure 2. The bottom 11 is provided with a hole 12 and extended to beyond the peripheral wall 15 by projecting rib 19. On the lower side of the bottom 11 two ears 16 are integrally formed, which are provided with holes for receiving a bolt. On the top the upper opening 13 of the chamber 10 is lockable by means of lid 14, which is provided with a hole 27, in which a user's finger can be inserted, and which is provided on both sides, at a level with the hinge pin, with bearing blocks 29 formed thereon, through which the hinge pin 20 extends to be journalled into bearing holes in the peripheral wall 15. Below the hole 27 there is a small plate 33, which is attached with a wall 34 to the underside of the lid 14 to thus prevent water and dirt falling into the chamber 10. If so desired the lid 14 can itself be lockable.

By means of a helical coil spring 28, which is attached with its one end to the underside of the lid 14 and with its other end attached to the inner surface of the peripheral wall 15, the lid 14 is biassed to a position closing off the upper opening 13 of the chamber 10. The lid 14 then rests on the upper edge 30 of the peripheral wall 15 and also flush with the upper surface of the concrete upper member 6 of the base member 1 ' . Instead of the spring 28 a hinge with built-in spring can be used.

The chamber shown in figure 2 can be manufactured and treated as loose part. When assembling the anti-theft device of figure 1 the chamber, with the rib 19 ahead, is inserted in the top of the sleeve 7 to have its rib 19 accommodated in the transverse slot 18 which is arranged for that purpose in the sleeve 7. Then the other side of the chamber 10 is lowered until the ears 16 formed onto the bottom 11 are aligned with their holes in corresponding holes which are made in the wall of the sleeve 7. After that a through going bolt with countersunk head 17 is inserted through these holes and secured by a nut, so that the chamber is locked in position in the top of the sleeve 7. Then the assembly of the sleeve 7 with chamber 10 is inserted from below in the prefabricated concrete member 4, until the baseplate 8 abuts the underside of the lower member 5. In this position the anti-theft device 1 is placed in an excavation in the ground 2, after which the ground is then replenished. For an improved anchoring of the device use can furthermore be made of the above mentioned rods extending in transverse direction, which project from the concrete member 4.

Instead of using the concrete prefabricated body 4 it is also possible to pour concrete in situ, after the sleeve has been placed in an excavation. When using rods these are then inserted through the sleeve and are also poured into the concrete. If so desired they can come to rest on the under side of the concrete body. Should the occasion arise the concrete members can also be omitted, by making the anchoring rods sufficiently long and thick or by providing them with special anchoring means such as baffle plates. The anti-theft device, in which the sleeve then forms the base member, will then only take up a very modest surface area (sleeve cross section) of the road surface.

A chain 21 hangs in the sleeve 7 the lowest link 22 of which is provided with a transverse pin 23 which is welded to it and has a length (in the direction transverse to the plane of the drawing) , which is larger than the diameter of the hole 12 in the bottom 11 of the chamber 10. Consequently it is not possible to pull. the chain 21 entirely out of the sleeve 7. At the upper end, the engagement end 24, 25 of the chain 21 the link 24 is also provided with a transverse pin 26 which is welded onto it and which has a length (seen in a direction perpendicular to the plane of the drawing) that is larger than the diameter of the hole 12. As a result the link 24 cannot fall through the hole to below, and the user can at any time engage the above located link 25, after the user has flipped open the lid. In this embodiment one of both transverse pins 23, 26 is welded to the link in question after the chain 21 has been led through the hole 12. When assembling the chamber 10 is placed in the sleeve 7 at the same time as the chain 21.

The uppermost link 25 is equal to the other link (or can, alternatively, have a larger diameter) and can be pulled by the user to the object to be secured. If this object to be secured is a car (vide figure 3) then there will be a tow eye. This tow eye can be joined with the engagement eye 25 by means of a padlock or the like.

If no eye of that kind is at hand on the object to be secured, the chain-shaped character of the flexible means 21 can be used, and the chain 21 can be put around a part of the object to be secured, in the case of a motor cycle or moped/bicycle about one of the frame tubes, to bring the link 25 to another, possibly enlarged link 21, after which both parts can be joined together by means of a padlock or the like.

It is also possible to use a padlock with a large arch and to then put this arch around part of the object to be secured and put it through the eye 25 and then to close the lock. The box 10 is moreover suitable for storing the lock, for example a padlock, secured to the link 25. In that case the user or the (joint) users of the anti-theft device do not even need to carry a lock with them, just a key for it.

The anchoring device 101 shown in figure 4 comprises a foot 102 in the shape of a square metal sleeve, which projects somewhat and is closed at the top and is provided with anchoring means 103 which comprise a piece of con-crete 104 as well as anchoring rod 105, 106. Preferably the device 101 is the size of a paving stone T, in most cases with a dimension of 30 cm x 30 cm. The metal sleeve 102 is undetachably attached to the piece of concrete 104. On the otherwise closed top openings are provided for allowing the chains 107, 108 to pass, which chains are arranged on the inside of the sleeve 102, and which are attached with the help of screw bolts 109, 110 to the sleeve 102 and to a piece of concrete 104. At their other end the chains 107, 108 are each provided with eyes, which prevent the whole chain falling into the sleeve 102. On each of these eyes locks 111, 112 may be attached, which the user of the device would have to carry with him for putting the chain around his vehicle and securing the chain to itself with the help of a lock, after having pulled the chain out of the sleeve 102.

The embodiment of the anti-theft device 220 according to the invention shown in figure 5 comprises a foot 221 and a plate 222 attached thereto, which is attachable in the ground B with the help of screw bolts 223. After attaching the plate 222, the heads of the screw bolts 223 are prefe-rably ground down in a way not shown to a round shape, so that they cannot in any way be removed by an unauthorized person. In the inside of a raised pipe 224 a chain 225 is accommodated, here provided with an (additional) counterweight 226. The bicycle R is secured against theft with the help of the chain 225 and a lock 227, to which the owner of the bicycle R has a key.