DE29508699U1 - Door lock - Google Patents

Description

23 May 1995

Gu/mg Andrea A. Lubliner

The invention relates to a door lock with a rod of adjustable length, which rests with its lower end on the floor and with its upper end under a movable part of a door lock, preferably a door handle, so that this part can no longer be moved when the door lock is in place and the door is secured.

A door lock with these features is known. The manufacturer states that it is 76 cm long when put together. It is therefore so unwieldy that it will be difficult to fit it into your luggage. It also weighs a relatively high amount, namely 520 g according to the manufacturer.

The exact design of this well-known door lock cannot be ascertained from the available documents. It probably consists essentially of two telescopically movable partial rods that can be locked together at certain fixed points. In this context, the manufacturer speaks of a total of ten locking stages. The length of the rod cannot therefore be continuously adjusted and a fine adjustment of the rod length is therefore not possible. However, such a fine adjustment is often required, for example when the door lock is to be used to secure doors of different systems, for example in train compartments of trains in different countries, where there is no European standard for the height of the door locks.

Apparently, this known door lock has a rubber plate at the bottom of the bar, which supports the bar on the floor, and the upper end is fork-shaped so that a door handle can be inserted into the fork from above.

which is then locked in place. Round doorknobs cannot be secured with this well-known door lock.

The invention avoids these disadvantages. Its aim is to propose a door lock with the features mentioned above, which is particularly handy and is characterized by its low weight, and which can also be easily adapted to the most diverse door lock systems, in particular door lock heights.

This object is achieved according to the invention in that the rod consists of at least three partial rods of approximately equal length

which can be easily detachably connected to one another, and 15

that a thread is provided for fine adjustment of the length of the rod.

Door locks are usually at a height between 105 and

120 cm above the ground. Assuming a maximum of 20

Height of 12 0 cm, then with a total of three partial poles, each of these partial poles has a height of approx. 40 cm. They can therefore easily be stored in your luggage or carried in your hand.

Because a threaded part is provided for fine adjustment of the length of the rod, the door lock according to the invention can be easily adapted to any door lock height.

An important embodiment of the invention is characterized in that the thread is provided at the upper end of the uppermost part of the rod, onto which an end piece with a pressure plate is screwed.

So for the fine adjustment of the length you only have to turn the end piece out or in accordingly.

End piece ends at the top with the mentioned pressure plate, i.e. in this preferred embodiment, the fork-shaped end of the mentioned stand of the

technique, although the end can also be designed that way. The 5

The pressure plate provided here according to the invention is placed under any movable part of a door handle, i.e. with the door lock according to the invention, both conventional door handles and (rotating) doorknobs etc. can be blocked.

It is preferred if the pressure plate can rotate freely relative to the end piece in order to prevent damage to the moving part of the door lock when the end piece is rotated.

For the same reason, it is preferred if the upper and/or lower end of the rod is provided with a rubber plate.

Another important aspect of the invention is

characterized in that at the connection between two of the

Partial rods have a coarse adjustment for the length of the rod. Using this coarse adjustment, the approximate length of the rod can be preset and the fine adjustment is then carried out via the threaded connection. 25

Furthermore, it is preferred if the partial rods can be inserted into one another, with a spring-loaded button being provided in one of the partial rods, which can snap into at least one corresponding hole in the other partial rod.

To increase the stability of the door lock according to the invention when the partial bars are plugged into one another, it is also preferred if the partial bars are provided with grooves and corresponding springs for guiding the partial bars when plugging them together.35

are provided with ken.

· Φ

The invention is explained in more detail below using an exemplary embodiment, from which further important features emerge. The figure shows an exploded view of a door lock according to the invention, consisting of three partial bars, which are shown separated from one another and laterally offset from one another for better understanding.

The door lock according to the invention consists of a total of three partial bars, namely a lower partial bar 1, a middle partial bar 2 and an upper partial bar 3. These three partial bars can be inserted into one another and locked together at the desired height. For this purpose, a spring-loaded button 4 and 5 are provided at the lower end of the middle partial bar 2 and the upper partial bar 3.

These buttons are assigned to holes 6 and 7 at the upper end of the lower part of the rod 1 and the middle part of the rod 2 respectively.

The partial rods are inserted into each other in such a way that the

Button 4 goes through the corresponding hole 6 and button 5 goes through one of the holes 7 on top of each other in the middle part of the rod 2. In the embodiment shown, a total of four of these holes 7 are provided. The rod is then

put together.
25

A thread is provided at the upper end of the upper part of the rod 2 and a threaded piece 8 is screwed onto this thread, at the upper end of which a freely rotating pressure plate 9 is provided. By turning the threaded piece

the height of the pressure plate is adjusted accordingly and thus also the length of the entire rod.

On the inner walls of the partial rods 1,2,3 a projection - not shown in the drawing - can be provided, which

a groove indicated at position 10 engages in the longitudinal direction of the three sectional rods. This creates a tongue and groove system for

Guiding the partial rods when they slide into each other, ensuring that the buttons 4,5 can work together with their holes 6,7.

At the lower end of the lower part rod 1 and at the upper end of the pressure plate 9, rubber plates 11,12 are shown.

It is therefore clear that the door lock according to the invention ends at the top in a flat plate 9, 11. This can be circular, rectangular, square or otherwise profiled. A square profile is preferred so that handles or similar movable door lock parts that are only a short distance from the door can also be blocked. In the prior art, this was not possible due to the fork provided at the upper end of the door lock.

To use, put the three rods together at the desired height and slide the door lock under the handle of the door to be secured. Now turn the threaded piece 8 until

the rubber plate 12 rests firmly on the door handle (doorknob or similar). The door is then secured.

To release the safety device, simply press one of the buttons 4,5, preferably the lower button 4, because this releases the

total length of the rod remains unchanged when re-locked.

Claims (9)

23 May 1995 Gu/mg Andrea A. Lubliner Protection claims: 1. Door lock with a rod of adjustable length, which rests on the floor with its lower end ^O and with its upper end under a movable part of a door lock, preferably a door handle, so that this part can no longer be moved when the door lock is in place and the door is secured,
characterized, that the rod consists of at least three partial rods (1,2,3) of approximately equal length, which can be easily detachably connected to one another, and that a thread is provided for fine adjustment of the length of the rod. 2. Door lock according to claim 1, characterized, that the thread at the top of the top part rod (3) is provided, onto which an end piece (8) with a Pressure plate (9) is screwed on.
25 3. Door lock according to claim 2,
characterized, that the pressure plate (9) is free from the end piece (8) is rotatable.
30 4. Door lock according to one of claims 1 - 3,
characterized, that the upper and lower ends of the rod are provided with a rubber plate {11, 12).
35 5. Door lock according to one of claims 1-4, characterized in that a coarse adjustment (5,7) for the length of the bar is provided at the connection between two of the partial bars (2,3). 6. Door lock according to one of claims 1-5, characterized in that the partial bars (1, 2, 3) can be inserted into one another, with a spring-loaded button (4, 5) being provided in at least one of the partial bars (2, 3), which can snap into at least one corresponding hole (6, 7) in the other partial bar (1, 2). 7. Door lock according to one of claims 1-6, characterized in that the partial rods (1, 2, 3) are provided with grooves (10) and springs corresponding thereto for guiding the partial rods (1, 2, 3) when they are put together. 8. Door lock according to one of claims 3-7, characterized in that the upper side of the pressure plate (9) is flat or trough-shaped. 9. Door lock according to one of claims 1-8, characterized in that the pressure plate (9) is round or rectangular.