EP2955301A1 - Container lock - Google Patents

Abstract

The invention relates to a container door lock for securing a container door (1), comprising a latch (2) which is suitable for abutment against an inner side (1a) of the container door (1) and at least one first counterpart (3) which abuts against an outside (1 b) of the container door (1) is suitable. The container lock according to the invention is characterized in that the first counterpart (3) has a base plate (4) and one or more molded sleeves (5) with an inner diameter (I) and that through openings (6) in the base plate (4). Securing means (7) are completely insertable into the sleeves (5), by which the first counterpart (3) and the bolt (2) are firmly connected to each other, wherein the sleeves (5) spaced from the base plate (4) abutment surfaces (8) for the positive engagement of heads (9) of the securing means (7) and the distance (A) between the base plate (4) and the contact surfaces (8) at least the inner diameter (I) of the sleeves (5). The invention also relates to a container with such a container lock.

Description

The invention relates to a container door lock for securing a container door, comprising a bolt which is suitable for bearing against an inner side of the container door, and at least one first counterpart, which is suitable for engagement on an outer side of the container door.

For the transport and storage of goods containers are used worldwide, which are available in different, usually standardized sizes. Thanks to their standardized shape, the containers can be transported and handled quickly using a variety of means of transport such as ships, trains and trucks.

Such containers are usually equipped with one or more doors through which access to the containers is possible. In particular, transport containers often have a double door, the wings of both can be fully opened for easier loading and unloading of the container. However, there are also containers in which only one wing is pivotable and the other wing is designed as a fixed wall element.

For the purposes of the invention containers are also truck superstructures and semitrailers of all kinds to understand, which include a door accessible via a cargo space in which goods can be transported.

Due to rising commodity values such containers are increasingly the target of burglary and theft, which can be associated with considerable damage to the owner of the goods and the freight forwarder.

Various locking mechanisms have therefore already been developed in the past, by means of which the doors of a container can be locked more effectively in order to make unauthorized access to the loading space of the container more difficult.

The DE 602 25 324 T2 discloses a container locking device having a locking rod guided in a sleeve, which extends on the inside over the door elements to be locked and can be secured by means of an eyebolt guided through a door element via a provided on the outside padlock.

In the DE 38 84 308 T2 a container locking arrangement is described, which comprises a front-mounted rod to be arranged on the outside of the door to be locked, which has at its one end a housing in which a padlock is located. The padlock locks the feeder bar with a door-mounted counterpart.

The US 4,627,248 describes a locking device which engages a pivot rod of a conventional espagnolette closure of a container or truck door. The locking device comprises a housing which is fastened to the outside of the door via fastening means guided through the door. A guided in the housing locking pin can be inserted via a locking mechanism in an opening in the rotary rod and lock them so.

All said locking mechanisms have a special locking mechanism, which is expensive to install, susceptible to wear and maintenance. In addition, the respective devices from the door to be locked to the outside sometimes considerably protruding Components that offer potential burglars, equipped with a suitable tool such as an angle grinder, an ideal point of attack.

The object of the present invention is therefore to provide a container door lock and a container with such a container door lock, by which the disadvantages of the devices known from the prior art are overcome.

This object is achieved by a container door lock with the features of patent claim 1 and by a container with a container door lock according to claim 12.

Advantageous embodiments and modifications of the invention are the subject of the dependent claims.

The container door lock according to the invention for securing a container door, comprising a latch which is suitable for bearing against an inner side of the container door, and at least one first counterpart which is suitable for bearing on an outer side of the container door, is characterized in that the first counterpart a Base plate and one or more molded sleeves having an inner diameter and that through openings in the base plate securing means are completely inserted into the sleeves, through which the first counterpart and the bolt are firmly connected to each other, the sleeves spaced from the base plate bearing surfaces for the have positive engagement of heads of the securing means and the distance between the base plate and the contact surfaces at least equal to the inner diameter of the sleeves.

In other words, the container door lock has a latch to be mounted on the inside of the door to be locked and at least one first counterpart to be mounted on the outside of the door to be locked. The inner latch extends in the use position over areas of a door element to be locked as well as adjoining areas. The first counterpart according to the invention has a base plate and thereon molded sleeves, which can be passed through openings in the door to be locked, such that the base plate comes to lie flat on the outside of the door.

The base plate and the sleeves may be integrally formed, for example, as a casting. Baseplate and sleeves may also be multi-piece, with the sleeves being connected, for example, by welding or other joining techniques.

In the sleeves securing means are completely inserted, through which the first counterpart and the bolt are firmly connected to each other. Spaced from the base plate, the sleeves have inner contact surfaces for the positive engagement of heads of the introduced securing means, wherein the distance between the base plate and the contact surfaces corresponds at least to the inner diameter of the sleeves. In other words, the securing means in the insert position sunk in such a way in the sleeves that attacking the securing means and a release of the same is difficult.

At the same time, the container door lock according to the invention is characterized by a very flat structure, which does not include any clearly projecting elements that would be easily separable with common tools.

According to one embodiment of the invention, the distance between the base plate and the contact surfaces corresponds to at least twice or at least three times the inner diameter of the sleeves. In this way, the securing means lie in the insert even deeper in the sleeve, which further complicates an attack on the heads of the securing means. The ratio of distance to inner diameter is preferably in a range of 2 to 4.

The sleeves may have a circular cross-section, said inner diameter of the sleeves corresponding to the inner diameter of the circular cross-sectional area. However, it is according to the invention In principle also possible that the cross-sectional area of the sleeves deviates from the circular shape. The inner diameter of a sleeve is then to be understood as meaning the diameter of a circle whose area corresponds to the cross-sectional area of the sleeve.

In a further embodiment of the container door lock according to the invention, a second counterpart is provided, wherein the second counterpart is formed as a plate. This second counterpart is firmly connected via fasteners with the bolt and fixes this addition. The second counterpart can also be connected with the aid of corresponding further fastening means with a rotary rod of an espagnolette lock of the container door.

It can also be provided that the latch is formed in two parts, comprising a first latch portion and a second latch portion, wherein the first latch portion and the second latch portion having closed container door adjacent edges. In adjoining edges then the locking portions are in a plane, which is ensured by the abutment of the edges accurate positioning of the locking portions to each other. This is important in order to be able to reliably connect the first locking section with the first counterpart even in the case of, for example, slightly distorted door elements, by means of the securing means.

In particular, the second locking portion can engage around a portion of the first locking portion. In two-part design of the bolt usually the second latch portion is fixed to a first door element on the inside of the container door and the first latch portion on a second door element on the inside of the container door or on a fixed, adjacent to the first door element wall element of the container on the Inside fixable. When using two counterparts on the outside can be connected by means of appropriate fasteners each have a counterpart with a latch portion. A formed on the first latch portion web can in use position with the container door closed on the second door element or the fixed wall element protrude into the region of the first door element and can be encompassed in this area by the second latch section.

According to the invention, the first counterpart is connectable by means of the securing means to the web of the first locking section projecting beyond the second door element or the stationary wall element.

The first counterpart can be connected by means of first fastening means with the second locking portion and the second counterpart be connected by means of second fastening means with the first locking portion. For fixing the first and second fastening means, first and second locking means can be provided.

To the two, each fixed to the inside of a door element or wall element latch sections when closing the container door to each other so that they rest against each other in the closed state of the container door, have the first latch portion and / or the second latch portion according to an embodiment of the invention her in the closed state of the container door abutting edges at least one chamfer.

The securing means insertable into the sleeves may be screws, which according to a proposal of the invention have individualized screw heads. In the context of the invention, individualized screw heads are screw heads which are not to be tightened and loosened using standard tools, such as conventional screwdrivers or conventional hexagon socket wrenches. In particular, it may be asymmetrical screw heads, which can be solved only by applying a corresponding tool. Such asymmetrical screw heads are known in the field of rim locks to protect an automobile rim from theft.

Due to the insertion of the securing means deep within the sleeve, it is difficult for a potential burglar to attack the securing means. In addition, the concrete profile of the head of the securing means would have to be recognized in order to obtain a suitable tool. This too is made difficult by the sunk position of the securing means.

Furthermore, at least one of the screws may have a left-hand thread. The combination of left-handed and right-handed screws further complicates a potential burglar with access to the container. The burglar then does not know in which direction the screw is to be solved.

The invention further provides a container with a container door lock having the above-mentioned features.

Figur 1:

Draufsicht von oben auf eine Ausgestaltung der erfindungsgemäßen Containertürverriegelung in Einsatzlage an einer Containertür in Schnittdarstellung;

Figur 2:

Die Containertürverriegelung aus Figur 1 in Innenansicht;

Figur 3:

Die Containertürverriegelung aus Figur 1 in Außenansicht;

Figur 4:

Draufsicht von vorne auf einen ersten Riegelabschnitt;

Figur 5:

Draufsicht von vorne auf einen zweiten Riegelabschnitt;

Figur 6:

Draufsicht von vorne auf ein zweites Gegenstück;

Figur 7:

Draufsicht von vorne auf ein erstes Gegenstück;

Figur 8:

Draufsicht von oben auf das erste Gegenstück aus Figur 7;

Figur 9:

Ein vergrößerter Ausschnitt des ersten Gegenstücks aus Figur 8 in Schnittdarstellung;

Figur 10:

Ein Ausschnitt aus Figur 1 in detaillierterer Darstellung.

In the following, the description will be explained with reference to an embodiment and with reference to the accompanying drawings. Show it:

FIG. 1:

Top view from above of an embodiment of the container door lock according to the invention in use position on a container door in a sectional view;

FIG. 2:

The container door lock off FIG. 1 in interior view;

FIG. 3:

The container door lock off FIG. 1 in exterior view;

FIG. 4:

Top view from the front of a first latch portion;

FIG. 5:

Top view from the front of a second latch portion;

FIG. 6:

Top view from the front of a second counterpart;

FIG. 7:

Top view from the front of a first counterpart;

FIG. 8:

Top view from above of the first counterpart FIG. 7 ;

FIG. 9:

An enlarged section of the first counterpart FIG. 8 in sectional view;

FIG. 10:

A section from FIG. 1 in more detail.

FIG. 1 shows in section from above the rear part of a transport container T with a container door 1, which is designed as a double door and a first door member 12 and a second door member 13 includes. The two door elements 12, 13 are connected via only schematically illustrated hinges 25 with the side walls 14, 15 of the container T. To open the container door 1 is due to the provided stop between the two door elements 12, 13, first the door element 12 and then the door element 13 according to the arrows 26 and 27 aufzuschwenken to the outside.

In the presentation of the FIG. 1 the container door 1 is locked by means of a container door lock according to the invention, which comprises a bolt 2 mounted on an inner side 1a of the container door 1 and a first counterpart 3 and a second counterpart 10. The two counterparts 3, 10 are mounted on an outer side 1 b of the container door 1.

The latch 2 extends on the inside 1a of the container door 1 transversely to the axes of rotation of the hinges 25 over portions of the first door member 12 and the second door member 13. The first counterpart 3 is on the outside 1 b of the container door 1 in the region of the first door member 12th mounted, the second counterpart 10 is mounted in the region of the second door member 13.

The first counterpart 3 comprises a base plate 4 and two sleeves 5 formed thereon, which have an inner diameter I (see FIG FIG. 8 ) exhibit. The two sleeves 5 are located in bushings 16, which are formed in the first door member 12, wherein the base plate 4 is flat on the outside 1 b of the container door 1 comes to rest.

About in FIG. 1 not shown fastening means of the bolt 2 with the counterparts 3 and 10 are connectable. The counterpart 3 is also characterized by in FIG. 1 securing means, not shown, which can be inserted into the sleeves 5 from the outside 1 b, can be connected to the bolt 2. This will be explained in more detail with reference to the other figures.

FIG. 2 shows a view of the inside 1 a of the locked container door 1 with the door elements 12, 13. In this view, the special design of the bolt 2 is clearly visible. It is made in two parts and comprises a first latch portion 2a and a second latch portion 2b. The two bolt sections are individually in the FIGS. 4 and 5 shown. The first latch portion 2a has a web 11, which is encompassed in the insert position when the container door is closed by the second latch portion 2b. The first locking portion 2a is mounted substantially in the region of the second door element 13, but the web 11 projects beyond the second door element 13 and lies in the insertion position in the region of the first door element 12. The second locking portion 2b encompassing the web 11 is in the region of the first Door element 12 mounted and has a horseshoe-shaped shape with a recess 17 in which the web 11 comes to rest in the insert position.

Both the first and the second latch portion 2a, 2b have holes 18 for the implementation of in FIG. 2 Not shown fastening means. These can be passed, for example, from the outer side 1 b of the container door 1 first through corresponding holes in the door elements 12, 13 and then through the holes 18 and be fixed on the inside 1a by means of suitable locking means. In this way, the locking portions 2a, 2b are fixedly connected to the door elements 12, 13. The fastening means may be, for example, screws with a smooth lens head, which are not easy to solve from the outside.

In FIG. 2 a total of eight holes 18 are shown. The two holes 19 also shown, which additionally with an internal thread are provided, not the above-described implementation of fasteners but the implementation of securing means, which will be explained in more detail.

If, when the container door 1 is opened, the door element 12 is first opened, the web 11 of the first latching section 2a mounted on the door element 13 projects into the area released by the door element 12. Accordingly, when closing the container door 1, the web 11 is again introduced into the recess 17 of the second locking portion 2b. In order to facilitate this insertion during the closing operation, the first locking portion 2a and the second locking portion 2b at their in-use position abutting edges 22, 23, see FIGS. 4 and 5 , corresponding bevels on.

FIG. 3 shows a view of the outside 1 b of the locked container door 1 with the door elements 12, 13. On the first door member 12, the first counterpart 3 is mounted, of which in the illustration of FIG. 3 only the base plate 4 is visible. The second counterpart 10 is mounted on the second door element 13. Both the first and the second counterpart 3, 10 each have four holes 20 for the implementation of fasteners, not shown. These are the ones already related to FIG. 2 explained fasteners. In the use position of the container door lock, the holes 20 in the counterparts 3, 10 are aligned with the holes 18 in the locking portions 2a, 2b and with corresponding holes in the door elements 12, 13, so that said fastening means from the outside 1 b through the holes 20, can be passed through the holes provided in the door elements and through the holes 18 and on the inside 1 a by corresponding locking means, here nuts can be set. In this way, both the counterparts 3, 10 and the latch sections 2a, 2b are fixedly connected to the door elements 12, 13. Specifically, the first latch portion 2a and the second counterpart 10 are connected to the second door member 13 by the fixing means, and the second latch portion 2b and the first counterpart 3 are connected to the first door member 12. The fastening means, for example screws, can be designed in this way be that they are not solvable from the outside 1 b ago with conventional tools. For example, the screw heads can be designed as smooth lens heads.

In FIG. 3 are also two rods 21 to see. These are part of the usually on generic containers existing espagnolette locks and extend in the vertical direction over the two door elements 12, 13. The two counterparts 3, 10 can, as in FIG. 3 shown, between the door elements 12, 13 and the rotary rods 21 may be arranged.

In the FIGS. 6 to 8 the two on the outside 1 b of the container door 1 arranged counterparts 3, 10 are shown. The second counterpart 10 is designed as a plate and has four holes 20 for the above-described implementation of fasteners. In addition, the counterpart four further holes 28, which serve to establish a connection with one of the rotary rods 21. For this purpose, for example, a clip not shown in the figures can be provided, which surrounds the rotary rod 21 and by means of suitable fastening means via the holes 28 with the counterpart 10 and the door member 13 is connectable.

The first counterpart 3 comprises a base plate 4 and two vertically formed on both sides sleeves 5. The sleeves 5 each have an inner diameter I and aligned with openings 6 in the base plate 4, through which securing means 7 are inserted into the sleeves 5, see also FIG. 9 , At a distance A from the base plate 4, the sleeves 5 have contact surfaces 8 for the positive engagement of heads of the introduced securing means. In the area of the contact surfaces 8, the inner diameter I of the sleeves is reduced accordingly, resulting from FIG. 9 is apparent.

FIG. 10 shows the first counterpart 3 in use position. For this purpose, the sleeves 5 are inserted into corresponding bushings 16 in the first door element 12 such that the base plate 4 comes to lie flat on the outside 1 b of the container door 1. By means of the fastening means described above, which through the four holes 20, see FIG. 7 , are passed through, the counterpart 3 is firmly connected to the voltage applied to the inside 1a of the container door latch 2 and at the same time with the door member 12.

When inserted into the sleeves 5 securing means 7 are screws. These screws have heads 9, with which the screws rest against the contact surfaces 8 of the sleeves 5. The threaded shaft 24 of the screws extends beyond the sleeves 5 and is screwed into the likewise threaded holes 19 in the web 11 of the first locking portion 2a. About this connection by means of the securing means 7, the first counterpart 3 with the first latch portion 2a is firmly connected. Thus, the first counterpart 3 is connected on the one hand via the fastening means with the horseshoe-shaped locking portion 2b and on the other via the securing means 7 with the first locking portion 2a of the bolt 2.

The contact surfaces 8 and the base plate 4 have a distance A from each other. This distance A is at the in FIG. 10 Because of this distance A are the heads 9 of the screws with respect to the plane of the base plate 4 as far as sunk within the sleeves 5 that it is difficult to approach them from the outside 1 b. A simple separation of the screw heads with an angle grinder is not possible. Rather, a tool is required to loosen the screws, which must be inserted through the openings 6 in the sleeves 5.

This process of loosening the screws is further complicated by the fact that the heads 9 of the screws are not standard screw heads, but have an individualized, in particular asymmetrical profile. To release such screws a corresponding key is necessary. Due to the back lying of the screw heads but the concrete profile of the same from the outside is very difficult to see. The recessed position of the screws together with the individualized screw head thus represents a double hurdle for potential burglars.

Another particular advantage of the described container door lock is that its mechanism is initially not visible from the outside. Thus, a potential burglar is probably first on the outside clearly visible fasteners by means of which the counterparts 3, 10 are connected to the door elements 12, 13 and the bolt 2, try to solve. This is not possible in a simple way. However, even if this succeeds, initially only the counterpart 10 would fall off. The first counterpart 3 and the bolt 2 would still be firmly connected to each other via the securing means 7, whereby the container door 1 would remain locked even with dissolved counterpart 10. In particular, both latch portions 2a, 2b on the inside 1a of the container door 1 remained in their positions, since the first latch portion 2a would be held over the securing means 7 and the second latch portion 2b would be held by the web 11 of the first latch portion 2a located in the recess 17. Even if the second latch portion 2b would fall off due to broken fasteners, the container door would still be locked.

A distinction is therefore between the fasteners and lying deep in the sleeves securing means. While the fasteners can be solved by destruction with a certain effort, this is in the case of fasteners due to their protected position in the sleeves only with a much greater effort or not at all possible. However, the fasteners are not critical to effective locking of the container door 1.

A release of the container door lock and opening the container door is only possible if the sunk in the sleeves 5 lying screws are released. However, this is due to the special operating position of the screws clearly spaced from the plane of the base plate 4 only difficult and in particular due to the special design of the heads 9 of the screws to accomplish only with special tools. Thus, the described container door lock provides excellent protection against burglars with at the same time simple and less maintenance-intensive construction.

Claims (12)

Container door lock for securing a container door (1), comprising a latch (2) which is suitable for bearing against an inner side (1a) of the container door (1), and at least one first counterpart (3) which is adapted to rest on an outer side (1b ) of the container door (1), characterized in that the first counterpart (3) has a base plate (4) and one or more sleeves (5) formed thereon with an inner diameter (I) and that through openings (6) in the Base plate (4) securing means (7) are completely inserted into the sleeves (5) through which the first counterpart (3) and the bolt (2) are firmly connected to each other, the sleeves (5) spaced from the base plate (4) Have contact surfaces (8) for the positive engagement of heads (9) of the securing means (7) and the distance (A) between the base plate (4) and the contact surfaces (8) at least the inner diameter (I) of the sleeves (5). Container door lock according to claim 1, characterized in that the distance (A) between the base plate (4) and the contact surfaces (8) at least three times the inner diameter (I) of the sleeves (5). Container door lock according to claim 1 or 2, characterized in that a second counterpart (10) is provided, wherein the second counterpart (10) is formed as a plate and fixed to the bolt (2) is connectable. Container door lock according to claim 3, characterized in that the bolt (2) is formed in two parts, comprising a first latch portion (2a) and a second latch portion (2b), wherein the first latch portion (2a) and the second latch portion (2b) at closed container door (1) abutting edges (22, 23). Container door lock according to claim 4, characterized in that the first counterpart (3) by means of the securing means (7) with the first latch portion (2a) of the bolt (2) is connectable. Container door lock according to claim 4 or 5, characterized in that the first counterpart (3) by means of first fastening means with the second latch portion (2b) is connectable and the second counterpart (10) by means of second fastening means with the first latch portion (2a) is connectable. Container door lock according to claim 6, characterized in that first and second locking means are provided for fixing the first and second fastening means. Container door lock according to one of claims 4 to 7, characterized in that the first latch portion (2a) and / or the second latch portion (2b) at their abutting edges (22, 23) have a chamfer. Container door lock according to one of claims 1 to 8, characterized in that the securing means (7) are screws. Container door lock according to claim 9, characterized in that the screws have individualized screw heads. Container door lock according to claim 9 or 10, characterized in that at least one screw has a left-hand thread. Container with a container door lock according to one of claims 1 to 11.

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