EP1522058A1

EP1522058A1 - Safety lock

Info

Publication number: EP1522058A1
Application number: EP02742636A
Authority: EP
Inventors: Dieter GRÖNER
Original assignee: Stoba AG
Current assignee: Stoba AG
Priority date: 2002-07-16
Filing date: 2002-07-16
Publication date: 2005-04-13
Anticipated expiration: 2022-07-16
Also published as: DE50206425D1; DK1522058T3; AU2002344919A1; WO2004008420A1; EP1522058B1; ATE323314T1

Abstract

The invention relates to a safety lock which is essentially composed of retaining means (2) which are inserted in a preferably hollow or shell-type housing (1). The shackle (3), when closed, is nondetachably locked with the retaining means (2) by snap-in means (4, 7, 8, 5, 9, 10) and the safety lock cannot be opened without destroying it at the same time. Preferably, the retaining means (2) cover an insertion channel (16) which receives characterizing elements such as label plates (18), so that these label plates (18), too, cannot be separated from the safety lock without destroying them.

Description

safety lock

The present invention relates to a security lock according to the preamble of claim 1. Security locks, also called seals or seals, are known in a large number and different embodiments. Depending on their application, they are sized differently and consist of different materials. With such closures, the closing elements of sealed containers are sealed in order to indicate any inadmissible or undesired attempts to open or manipulate them.

Such closures are used for freight containers, which are closed and transported after being filled as intended. The container may and should only be opened at the destination, whereby any attempt to open it or even an opening that has been carried out should be displayed simply and reliably.

W09837531 discloses a trailer designed as a safety lock with a lockable bracket. There is described a slidably arranged slide in a housing with a hook-shaped curved free temple end. In the closed state of the bracket resp. the slider engage resilient retaining means in the housing in the bracket respectively. the slide trained recesses and thus prevent non-destructive opening of the Trailer. The resilient retaining means is supported in the interior of the housing against a retaining cam which is connected to the housing wall via a predetermined breaking point. If too much pulling force is exerted on the stirrup during a manipulation attempt, it breaks

A predetermined breaking point in the housing wall and thus indicates an attempted manipulation to the outside without the trailer having already been opened.

The object of the present invention was to find a L0 security lock of the type mentioned, which is easy to use, can be reliably closed and which is highly secure against manipulation.

This object is achieved according to the invention by a safety lock having the features of claim 1 L5.

Further embodiments according to the invention result from the features of claims 2 to 17.

The design of the restraint means that it can be inserted into the housing and cannot be detached from the housing

.0 engaging part, which in the inserted state forms at least part of the corresponding outer surface of the safety closure itself through its end faces, becomes a simply constructed, simple and quick to operate and reliable in operation

15 manipulation-proof means created. The bracket itself in turn snaps both in the open position and in the closed position via locking means in the housing. the restraint. The housing is advantageously designed as a hollow body and has a rectangular cross section. Such a housing can also be easily and inexpensively manufactured in large numbers and cannot be opened non-destructively, 5 even if it is composed of two or more parts, preferably by welding and / or riveting.

Detachable locking means are advantageously formed on the outside of the housing. This allows you to use several

L0 Put safety locks equipped in such housings together in a group. This has advantages both in terms of storage and shipping, as well as when using the security locks, where there are usually several such security locks as quickly as possible

.5 must be used in succession.

The housing preferably also has an insertion channel provided with a recess on the outside. A label or identification plate can be inserted into this insertion channel, for example, which can be viewed from the outside via the recess. In this case, the recess can, for example, be additionally covered by a transparent pane, or it can also be of an open design.

Advantageously, the insertion channel is only accessible laterally on one side 5 via an insertion opening, which is advantageously covered in the inserted state by an appropriately designed plate or edge of the retaining means. This allows you to insert the required data before inserting the restraint and prepared label in the insertion channel, which after inserting and latching resp. Locking the restraint in the housing can no longer be replaced or removed 5 non-destructively. This leads to an additional security element of the security lock according to the invention.

The rest or Fixing elements of the retaining means with respect to the closing bracket can preferably be realized either by tongues formed directly on the retaining means, or by means of separate latching means, the resilient tongues of which engage in corresponding openings of the closing bracket and which are embedded in the retaining means.

L5 Preferably, instead of latching means with a defined latching position and accordingly defined closure size of the closure bracket, it is also possible to arrange clamping elements which, within certain limits, make any closure size of the closure bracket possible.

.0 Such clamping elements also reliably prevent a subsequent opening of the closure bracket, the effect of profile of the corresponding areas of the legs of the closure bracket is reinforced or. can be supported.

! 5 The locking bracket is preferably made of metal, whereas the housing and the retaining means can be made of plastic. The separate locking means are advantageously also made of metal, but can also consist of another suitable material. Exemplary embodiments of the present invention are described in more detail below with reference to the figures. Show it

1 shows the longitudinal section through an inventive safety lock in the open state;

Fig. 2 shows the longitudinal section through a

Safety lock similar to Figure 1 in the closed state;

Fig. 3 shows the longitudinal section through an alternative variant of an inventive

Safety lock in closed condition;

4 shows the external view of the safety closure according to FIG. 3 in the open state;

5 shows the view of a plurality of detachable L5 safety closures according to FIGS. 3 and 4;

6 shows the view of the individual parts of the safety lock according to FIGS. 3-5;

7 shows the schematic longitudinal section through a further alternative embodiment of a security lock according to the invention;

8 shows the longitudinal section through a further alternative embodiment of a safety closure according to the invention;

9 shows the view of the closed safety lock according to FIG. 8; 10 shows the front view of a further alternative embodiment of a security lock according to the invention; and

11 shows the rear view of the safety closure according to FIG. 10.

1 shows the longitudinal section through an embodiment of a security lock according to the invention with a housing 1, retaining means 2 inserted therein and locking bracket 3 in the open position.

The bracket 3 is bent in a U-shape and has a shorter leg 3 'and a longer leg 3' '. The free end of the longer leg 3 '"is already inserted into the channel formed between the retaining means 2 and the housing 1. A tongue 4 protruding downwards and outwards from the retaining means 2 here engages in a first recess 5 in the leg 3' ' of the bracket 3. This prevents the bracket 3 from being pulled out of the safety lock, since with such a movement the tip of the tongue 4 comes into abutment against the lower, lateral edge of the cutout 5 and thus blocks this movement but are pushed further down into the housing 1, as a result of which the free end of the shorter leg 3 'also penetrates into the channel formed accordingly between the housing 1 and the retaining means 2 and the safety lock is thus closed.

This movement can up to the stop of the free end of the leg 3 '' on a stop 6 on the inside of the Housing 1 are executed. The tongue 4 is pressed inward by the upper inner edge of the recess 5 of the leg 3 ^r 'and does not prevent this movement.

When the fully closed position is reached, as shown in longitudinal section in FIG. 2, further tongues 7 and 8 engage in the recesses 5 and 5 respectively. 9 of the bracket 3, as well as the tongue 4 engages in the further recess 10 of the bracket 3. So that the bracket 3 in the housing 1, respectively. fixed in the restraint 2 and L0 can no longer be released without damaging the entire safety lock. This fixation is carried out by the tongues 4, 7, 8 and the stop 6 of the retaining means 2 and. the housing 1.

The retention means 2 is designed such that it forms part of the bottom surface of the safety lock L5 through its one end face 11 and forms part of the closing surface of the safety lock through its other end face 12.

The retaining means 2 is inserted into the housing 1, which is advantageously designed as a hollow body! 0, and is fixed by a further tongue 13, which comes into abutment against a recess 14 on the inner surface of the housing. A further upward movement is prevented by the rear abutment surfaces of the end face 11 of the retaining means 2, which comes into abutment against the corresponding recess in the housing 1. This design of the end face 11 also reliably attempts to manipulate a thin, flat object from below through the gap between restraint 2 and housing 1 prevented. A non-destructive loosening of the connection between the retaining means 2 and the housing 1 is therefore impossible.

In Figure 3 is the longitudinal section through a further 5 embodiment of an inventive

Security lock shown, again in the closed position.

The retaining means 2 is again designed as an insert in the housing 1, the fixation in turn also 10 via a tongue 13 projecting resiliently outwards

Retention means 2 takes place, which comes into contact with a recess 14 on the inside of the housing 1.

The bracket 3 in turn has two legs 3 'of different lengths. 3 '' with a recess 9 respectively. two

L5 recesses 5, 10 on. In the present example, the tongues 4, which spring into these recesses 9, 10, respectively. 8 formed by the free ends of an expansion bracket 15. The expansion bracket 15 is inserted in a corresponding recess in the retaining means 2, and the bracket ends 4 and 4 respectively. 8th

.0 can also deflect towards the middle or in the

Spring out recesses 9, 10 and thus fix the bracket 3 so that it cannot be detached.

By appropriately dimensioning the recess in the retaining means 2, the expansion bracket 15 can be easily moved back and forth in the longitudinal direction of the safety lock and thus the bracket 3, but not opened!

Furthermore, an insertion channel 16 with a recess 17 open to the outside is now formed on a side wall of the housing 1. The insertion opening 16 'is at the bottom of the Housing 1 is formed and is closed by that part 11 'of the inner edge of the end face 11 of the retaining means 2 which serves as a closing plate. For example, a labeling plate 18 can be inserted into the insertion channel 16 before the

Retention means 2 is inserted into the housing 1. This inscription panel 18 can have indicators relating to the security lock, such as an ID number or barcode for simple electronic L0 detection and registration of the ID of the security lock.

After the retention means 2 has been pushed in and thus the insertion opening 16 'has been closed, this inscription panel 18 can no longer be removed from the L5 security lock without being destroyed. Such panels can advantageously be prefabricated on a separate device and, if necessary, the security lock can be equipped with the corresponding panel 18.

FIG. 4 also shows the view of the safety lock according to FIG. 3 in an open form. The bracket 3 protrudes in its open position far beyond the closing surface of the retaining means 2. In this figure, the locking means, which are preferably formed on the outside of the housing 1, in the form of webs 19 and grooves 20, which are formed by an outwardly projecting attachment on the outer wall of the housing 1, can now be seen. By means of these latching means 19, 20, a plurality of security locks can be strung together, as can be seen from FIG. 5. In order to Advantageously, rows of 5 or 10 security locks can be simply put together and easily removed from these rows for use. The storage and transportation of larger quantities of such security closures can also be simplified by these latching means 19, 20.

In FIG. 6, the structure of such a security lock according to the invention is shown in perspective as a compilation. The labeling plate 18 is inserted in advance into the insertion channel 16 of the housing 1 before the retaining means 2 equipped with the expansion bracket 15 is inserted into the housing 1. After the retaining means 2 has been latched into the housing 1, the bracket 3 can be pushed into the housing 1 from above until the first latching position, and the safety lock is ready for use in the open position.

Another variant of a security closure according to the invention is shown in longitudinal section in FIG. The basic structure of housing 1 and retaining means 2 is essentially analogous to the previously described variants. One difference here is the design of the tongue 13 as a latching means between the housing 1 and the retaining means 2, which in this embodiment is connected to the housing 1. The tip of the tongue 13 snaps into a stop 21 formed on the retaining means.

The bracket 3 is also alternatively solved. In this embodiment variant, the bracket 3 is not fixed via resilient tongues, but by means of cylinders or. roll-shaped - 1 * 1 -

Clamping elements 22 held on to friction. These clamping elements 22 are preferably connected to each other via a resilient bracket 23 and thus form the locking or. Friction means for the bracket 3. The surfaces 24 of the retaining means 2 facing the 5 clamping elements are obliquely in the direction of the inlet opening of the bracket 3, the distance to the legs 3 'and. 3 '' designed to be smaller and thus form an upwardly tapering wedge opening for the clamping elements 22

L0 this construction can now the legs 3 ', respectively. 3 '' of the bracket 3 are inserted down into the housing 1, with a reverse movement the clamping elements 22 are pressed into the wedge opening and thus clamp the legs 3 'res. 3 '', which makes it impossible to open the bracket 3. The

L5 advantage with this solution is that the

Closing opening of the bracket 3 with respect to the housing 1 is variable within certain limits, and thus the safety lock is tight-fitting, for example by rsp. can be attached to a rod or mandrel 25.

10 To increase or increase the clamping effect. to guarantee, the legs 3 'resp. 3 ″ of the bracket 3 advantageously have a profiled surface at least in the region of the clamping elements 22. For example, the surface can only be roughened or provided with angular profiles.

FIG. 8 shows a further variant of a security closure according to the invention in longitudinal section. The design of the housing 1 and the retaining means 2 are designed in accordance with the variant of FIG. 7. As a fixative for the legs 3 ' respectively. 3 '' of the bracket 3 are here again resilient tongues 4 respectively. 8 formed, which are formed by the free ends of a bow 26 bent downward.

FIG. 9 also shows the view of the safety closure according to FIG. 8 in the closed position.

The cube-shaped housing 1, which essentially has a rectangular cross section, is particularly well visible here, as is the end face 12 of the retaining means 2, which forms part of the closing surface of the safety closure. The housing 1 can either be made in one piece from a single piece, or welded together and / or riveted from two parts. Both the housing 1 and the retaining means 2 are preferably made of plastic and are advantageously produced using injection molding technology. The bracket 3 is preferably made of metal and has, for example, rounded edges.

FIGS. 10 and 11 show yet another variant of a safety closure according to the invention in the front or Rear view shown. Here are now as releasable connecting means for two adjacent security closures on the outside of the housing 1 on one side cams 27, advantageously circular cams with a slightly conical shape tapering outwards, and on the other side frame or. Recess channels 28 are formed, in which the cams 27 can engage frictionally. Analogous to the arrangement shown in FIG. 5, several security locks can thus be put together to form a group. The security closures according to the invention can advantageously be implemented simply, quickly and reliably against tamper-evident closures.

Claims

Pa claims

1. Safety fastener with retaining means (2), a locking bracket (3) that can be displaced and latched relative to these retaining means (2) and a housing (1) that at least partially surrounds the retaining means (2), characterized in that the retaining means (2) in the housing (1) is designed to be insertable and in

LO inserted state itself forms part of the externally visible housing wall (11; 12), resilient latching means (13) being formed on the inside of the housing (1) and / or on the retaining means (2), which in the inserted state of the retaining means ( 2) in the housing

L5 (1) lock them against each other, and that further

Locking means (4, 7, 8; 5, 9, 10) are formed between the retaining means (2) and the locking bracket (3), which lock the locking bracket (3) in the closed state with respect to the retaining means (2).

! 0

2. Safety closure according to claim 1, characterized in that the housing (1) is designed as a hollow body, preferably with a substantially rectangular cross section and cuboid shape.

5

3. Safety closure according to claim 1 or 2, characterized in that the housing (1) on the outside releasable locking means (19, 20; 27, 28), which the Allow detachable connection of several housings to one another, preferably in one plane.

4. Safety lock according to claim 3, characterized in that the latching means are in the form of webs (19) and a corresponding groove (29) forming double webs.

5. Safety closure according to claim 3, characterized in that the latching means are designed in the form of a wedge and spring.

6. Safety lock according to claim 3, characterized in that the latching means in the form of cams (27), preferably circular cams, and frame respectively. Grooves (28) are formed.

7. Safety closure according to one of claims 1 to 6, characterized in that the housing (1) has at least on one side an outwardly open insertion channel (16) via a recess (17), preferably with one end of the housing (1 ) open insertion opening (lβ ^? ).

8. Safety closure according to claim 7, characterized in that the retaining means (2) partially the insertion opening (16 ') in the inserted state or preferably has a completely covering closure plate.

9. Safety closure according to one of claims 1 to 8, characterized in that the retaining means (2) is designed as a substantially rectangular cross-section part, the end edges (11, 12) of which are at least a part of both the lower and the upper outer side of the safety closure form.

10. Safety lock according to one of claims 1 to 9, characterized in that the latching means are formed both on the housing (1) and the locking bracket (3) directly on the retaining means (2), preferably integrally formed from the retaining means (2) are, preferably as resilient tongues (4,7,8,13) projecting outwards from the retaining means at an acute angle.

11. Safety lock according to one of claims 1 to 9, characterized in that the locking means acting between the retaining means (2) and the locking bracket (3) are designed as a separate locking means (15) which is held in the retaining means (2) and at the same time in the closed state of the Locking bracket (3) on resp. in both legs (3 ', 3'') of the locking bracket (3) on or. is designed to be able to intervene.

12. Safety lock according to claim 11, characterized in that the latching means is designed as a spread or rounded spring clip (15), in which on both sides - one at an acute angle in the direction of insertion of the legs (3 ', 3' ') of the locking clip (3 ) protruding tongues (4,8) are formed.

13. Safety closure according to claim 11, characterized in that the latching means is designed as a frictional connection between the retaining means (2) and the closure bracket (3), preferably in the form of two cylindrical clamping elements (22) which are connected to one another to form a common latching means and in each case one side against an inclined in relation to the insertion direction of the locking bracket (3)

Ramp (24) of the restraining means (2) is at the stop and on the other side against the legs (3 ', 3' ') of the locking bracket (3), the legs (3', 3 '') of the locking bracket (3) preferably have a profiled surface in the stop area of the clamping elements (22), preferably have a tooth-shaped profiled surface.

14. Safety lock according to one of claims 1 to 12, characterized in that the locking bracket (3) has a u-shaped shape with two parallel legs (S '^' ¹ ), wherein one leg (3 '') is longer than the other leg (3 ') and two spaced apart receiving openings (5,10) for the Engagement of the respective locking means (4,7), wherein in a first locking position the free end of the other, shorter leg (3 ') from the retaining means (2) or. Housing (1) comes to lie at a distance and the safety lock is only closed in the second latching position.

15. Safety lock according to claim 14, characterized in that the locking bracket (3) made of metal

10, preferably consists of bent and punched strip material or rolled flat wire.

16. Safety closure according to one of claims 1 to 15, characterized in that the retaining means (2)

L5 is made of plastic, preferably made as a two-part injection molded part and then welded and / or riveted.

17. Safety lock according to one of claims 1 to -0 16, characterized in that the housing (1)

Plastic consists, preferably made of a two-part injection molded part and then welded and / or riveted.

15