WO2007068135A1

WO2007068135A1 - Theft protection device

Info

Publication number: WO2007068135A1
Application number: PCT/CH2006/000693
Authority: WO
Inventors: Othmar Brühwiler
Original assignee: Pataco Ag, Industrie- Und Unterhaltungselektronik
Priority date: 2005-12-13
Filing date: 2006-12-12
Publication date: 2007-06-21

Abstract

In the case of a theft protection device for a flat object, such as a CD or DVD case, with a container which is intended to receive the object and comprises a container lower part (10) and articulated lid, and with a lock between container lower part and lid, the lock can be released by transverse displacement of a special tool inserted initially perpendicular thereto into the container through openings by means of a plurality of L-shaped fingers. According to the invention, the lock comprises latching means (17) which are integrally formed in the container lower part and in the lid and come into mutual engagement when the container is closed.

Description

DESCRIPTION TITLE

Anti-theft device

TECHNICAL AREA

The present invention relates to an anti-theft device for a flat object such as a CD or DVD case, with a specific container for receiving the container consisting of container base and hinged lid and with a lock between the container base and lid, which lock by transversely moving a first perpendicular to it with several L-shaped fingers through openings in the container inserted special tool is solvable.

For the use of the device in a retail store equipped with an electronic anti-theft system, a transponder is placed in the container, in addition to the object to be protected, in an attempt to steal the container containing the article from the electronic anti-theft system e.g. is detected at the outlet of the store and triggers an alarm. With proper payment, the item is removed by the sales staff from the container in which the transponder remains and thus can no longer trigger an alarm at the outlet of the store. The unlocking of the container is done with the mentioned special tool, which is available only to the sales staff.

PRIOR ART In a device of this type known from EP 0 616 103, the lock comprises a metallic locking band and a displaceable bolt cooperating with the locking band and with stops on the cover. This device has proven itself in practice, especially in terms of their safety, quality and longevity. In their capacity as securing means and therefore only They are subject to sales aids, like similar devices, but they are subject to considerable price pressure.

The object of the invention was therefore to provide a device of the type defined above, which can be made even more cost-effective due to their training at least undiminished quality. This object is achieved by a device as characterized in patent claims 1. In essence, the invention thus consists in that the locking consists of integrally formed in the container base and in the lid locking means which come into mutual engagement when closing the container.

In an injection molding production of container base and lid, the locking results without any additional effort.

Preferred embodiments of the inventive locking are characterized in the dependent claims.

Thus, the latching means in the container bottom and in the lid, for example. comprise molded walls which come in mutual overlap when closing the container in mutual overlap and with integrally formed locking means.

The latching means may on the one hand comprise resilient tongues with latching pawls formed thereon and, on the other hand, recesses for a resilient engagement of the latching pawls.

The resilient tongues preferably extend in this case towards their free end in a longitudinal direction which is opposite to the direction of the transverse displacement of the special tool for releasing the lock. They are further preferably provided at their free ends with an oblique ramp surface for the attack of the L-shaped fingers of the special tool. For the safety of the lock, it is advantageous if at least one of the resilient tongues is provided in the region of its free end with a pair of latches which are arranged in the longitudinal direction of the tongue at a mutual distance substantially side by side and which with a pair of substantially co-located recesses cooperate. In this case, an unlocking namely requires a straight, ie untwisted deflection of the corresponding tongue, which is very difficult to accomplish except with the special tool provided for this purpose.

Thus, in this case latching pawls with their respective recesses and not the "wrong" pawls with the "wrong" recesses, the adjacent pawls and recesses may each be formed differently long, so that when closing the container, the longer latch on first the shorter recess and then meets the longer recess, where they can engage only in the longer recess.

If certain tolerances are met, it is ensured by the above-mentioned special designs that the special tools used for the previous devices according to EP 0 616 103 can still be used for unlocking the device according to the invention.

From the above-mentioned special training also results in the advantage of an automatic locking when closing the container, without the need for another action such as moving a bolt would have to be performed. As a result, the safety of the device is increased, because in practice in the prior art device to be executed after closing extra displacement of the bolt ever forgotten or incomplete.

With regard to the automatic locking, it is finally preferred, when closing and locking the container after reaching a Vorschliessstellung a resistance must be overcome, which is caused by the locking means and / or at least one preferably formed in the container base or in the lid spring. The resistance should be such that at least ten containers (approx. 35 g) can be stacked in the closed position, without that it comes to a locking of a container. In practice, unwanted self-locking of empty containers and the necessity of unlocking them prior to filling can thus be largely avoided.

BRIEF EXPLANATION OF THE FIGURES

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it:

Fig. 1, the lower part of a container for receiving a CD case of an inventive anti-theft device in perspective

Representation with insight into its inside;

Figure 2 shows the upper part of the container in perspective view with an insight into its inside.

Fig. 3 is a partial sectional view A - A (Fig. 4) of the lower part;

4 is a sectional view B - B (FIG. 3) of the lower part;

Fig. 5 is a sectional view C - C (Fig. 3) of the lower part; and

Fig. 6 in view of a special tool for unlocking the container.

DETAILED DESCRIPTION OF THE INVENTION FIG. 1 shows the lower part 10 and FIG. 2 the lid 20 of a container of an anti-theft device according to the invention. Both parts 10 and 20 are made of a transparent plastic material, e.g. UV-stabilized, clear polycarbonate. In the ready state, the lower part and the cover are hinged to each other by means of the hinge eyes 13a on the lower part and 23a on the cover and two metal pins, not shown, inserted into the hinge eyes.

The resulting from the illustrated parts container is mainly intended for receiving a CD case. For taking a slightly larger DVD case or other protected item, such as a memory card, A USB sticker or other memory cards can or must be adapted to the dimensions of the container. In the context of this description, however, otherwise explained training of the container, however, has no influence.

The lower part 10 has the shape of a flat shell with a bottom plate 11, a front wall 12, a rear wall 13, and two side walls 14 and 15. On the rear wall 13, the already mentioned hinge eyes 13a are formed. Parallel to the front wall 12 and with some distance from this, a first wall 16 is formed standing upright on the bottom plate 11 and connected via a plurality, somewhat lower transverse walls 19 with the front wall 12.

In the first wall 16 as a first locking means three resilient tongues 17 are formed, which extend in Fig. 1 from left to right to its free end respectively parallel to the bottom plate 11 and the front wall 12 along. In Fig. 3, the free ends of the three tongues are designated 17a. In Fig. 3a is also seen that the free ends are provided with an oblique ramp surface the attack of the L-shaped fingers of a special tool, as shown in Fig. 6.

As can also be seen from Figures 4 and 5, the tongues 17 are provided on their directed against the rear wall 13 side each with a pair of molded latching pawls 17b and 17c, which in the longitudinal direction of the tongues 17 each arranged at a mutual distance side by side and in this longitudinal direction are each formed differently long. The lower in Figs. 1 and 2 - 5, i. closer to the bottom plate 11 arranged latching pawls 17c are respectively the shorter, the upper 17c respectively corresponding to the longer latching pawls. In all latches 17, the upper edge in the same sense is chamfered, as can be seen in particular from Figures 1 and 4.

As in the case of the lower part, the cover 20 has the shape of a flat shell with a cover plate 21, a front wall 22, a rear wall 23, and two side walls 24 and 25. The already mentioned hinge eyes 23a are formed on the rear wall 23. Parallel to the front wall 22 and with some distance from this is a second wall 26 m upright standing on the cover plate 21st formed and connected via two end transverse walls 29 with the front wall 22. In the second wall 26, a plurality of elongated recesses 27 are provided as second locking means, which correspond with respect to their pairwise arrangement, alignment and length with the mentioned detents 17b and 17c of the lower part 10. There are therefore longer, closer to the cover plate arranged recesses 27b and shorter recesses 27c available.

When the container is closed, the walls of lower part 10 and lid 20 overlap including the first 16 and second wall 26, the first wall 16 between the second wall 26 and the front wall 22 of the lid engages. In addition, the latching pawls 17b engage in the recesses 27b and the latching pawls 17c engage in the recesses 27c.

When closing the container, the pawls 17b and 17c are run over by the free edge 26a of the second wall 26 and thereby deflected elastically in the direction of the front wall 12 due to their bevelled front edges. In this case, the longer detent pawls 17b, when the container is not yet completely closed, initially strike the shorter recesses 27c in which they can not engage. This ensures that the closing process can be continued. Only when the container is completely closed, the longer detent pawls 17b hit the longer recesses 27b in which they can engage. At the same time meet the shorter pawls 17c on the shorter recesses 27c in which they can also engage.

In order to release the illustrated locking of the container, the latching engagement of all the pawls 17b and 17c in all the recesses 27b and 27c must be canceled at the same time. This is possible only with a special tool 30, as shown in principle in FIG. 6. The SpezialWerkzeug 30 consists for example of a flat metal plate and has three L-shaped fingers with bevelled free ends 31 a, with which it can be inserted through openings in the bottom plate 11 between the front wall 12 and the first wall 16 of the lower part 10. The corresponding openings can be seen in Figures 3 and 4 and designated 18. The mentioned transverse walls 19 in this case form a guide such that the special tool initially only vertically to the bottom plate 11 can be inserted. Only in the fully inserted state, when the base edge 32 of the SpezialWerkzeugs 30 abuts against the bottom plate 11, a small transverse movement parallel to the bottom plate 11 and against the longitudinal extent of the resilient tongues 17 is possible. In this transverse movement, the tapered ends 31a of the L-shaped fingers 31 engage the oppositely tapered ramp surfaces at the free ends 17c of the resilient tongues 17 and lift them or the latching pawls formed on them out of their engaged position with the recesses 27 in the second one Wall 26 out. The container is then unlocked and can be opened.

The angle of the opposing bevel of the free ends 17c of the resilient tongues 17 on the one hand and the free ends 31a of the L-shaped fingers 31 of the special tool 30 on the other hand is preferably between 20 ° and 35 °. The chamfers must fit fairly closely to each other, so that the latches on the available displacement of the special tool from its engaged position really completely lifted.

As mentioned, the locking blades 17 must be elastically deflected to close the container. As a result, a certain force for definitive closure and locking of the container is required. This makes it possible to use several e.g. To stack empty containers in the Vorschliessstellung one above the other, without resulting in a self-locking of the container. The closing resistance can be further increased if necessary by a spring, which like the spring 28, e.g. in the lid can be easily molded with.

It is understood that the material used for the lower part 10 and possibly for the lid 20 with respect to the resilient tongues 17 and possibly the spring 28 must be sufficiently elastic.

For the use of the above-described container in a shop equipped with an electronic anti-theft security system, a flat transponder (not shown) is glued into the container, for example in the recess 21a provided for this purpose in the cover plate. NAME LIST

10 container base

11 base plate

12 front wall

13 rear wall

13a hinged eyelets

14 sidewall

15 side wall

16 first wall

17 springy tongues

17a free ends of the tongues 17

17b long latches

17c short latches

18 openings in the floor 11

19 transverse walls

20 lids

21 cover plate

21a recess in the cover plate

22 front wall

23 rear wall

23a hinged eyelets

24 side wall

25 side wall

26 second wall

26a free edge of the second wall

27 recesses

27b short recesses

27c long recesses

28 spring

29 transverse walls

30 special tools

31 L-shaped fingers

31 a free ends of the fingers 31

32 base edge

Claims

1. Anti-theft device for a flat object such as a CD or DVD case, with a specific container for receiving the container consisting of container base and hinged lid and with a lock between the container base and lid, which locking by transverse displacement of a first perpendicular thereto a plurality of L-shaped fingers inserted through openings in the container special tool is detachable, characterized in that the lock consists of integrally formed in the container base and in the lid locking means which come into mutual engagement when closing the container.

2. Apparatus according to claim 1, characterized in that the latching means comprise in the container base and in the lid molded walls, which come into mutual engagement when closing the container in mutual overlap and with integrally formed locking means.

3. Apparatus according to claim 1 or 2, characterized in that the latching means on the one hand comprise resilient tongues with detents formed thereon and on the other recesses for a resilient engagement of the detents.

4. The device according to claim 3, characterized in that the resilient tongues extend towards their free end in a longitudinal direction which is opposite to the direction of the transverse displacement of the special tool for releasing the lock.

5. Apparatus according to claim 4, characterized in that the resilient tongues are provided at their free ends with an inclined ramp surface for the attack of the L-shaped fingers of the special tool, wherein the angle of the ramp surface relative to the longitudinal direction between 20 ° and 35 ° ,

6. Device according to one of claims 3 - 5, characterized in that at least one of the resilient tongues is provided in the region of its free end with a pair of latching pawls, which in the longitudinal direction of the tongue with mutual Spacing are arranged substantially side by side and which cooperate with an associated pair of recesses.

7. The device according to claim 6, characterized in that the two detents of the pair of detents in the longitudinal direction of the tongue and the cooperating recesses are formed differently long in such a way that when closing the container, the longer latch first to the shorter recess and only then meets the longer recess, where they can only intervene in this longer recess.

8. Device according to one of claims 1-7, characterized in that when closing and locking the container after reaching a Vorschliessstellung a resistance must be overcome, which causes by the latching means and / or at least one preferably formed in the container base or in the lid spring is and which resistor is dimensioned so that at least ten containers can be stacked in Vorschliessstellung each other, without causing a locking of a container.