EP4357563A1 - Lock for doors, compartments, flaps or the like. the like. furniture on furniture or similar and furniture with such a lock - Google Patents

Abstract

The invention relates to a lock (10) for doors, compartments, flaps or the like, hereinafter referred to as furniture part (50), on furniture or the like, which has a locking unit comprising a knob (20), a stator and a rotor connected to the knob (20) in a torque-transmitting manner, at least one locking element and means for converting the rotor movement into an opening movement of the locking element. The knob (20) has a casing (21) which encloses at least part of the knob (20). The invention now proposes that a sleeve (30) is provided into which the knob (20) can be inserted and held at least in some areas. Furthermore, the knob (20) is rotatably mounted in the sleeve (30) in order to enable the rotor to be actuated by turning the knob (20). The sleeve (30) can be inserted into the door (50) or the compartment or flap on the furniture or similar and stored there in a twist-proof manner (Fig. 3).

Description

The invention relates to a lock for doors, compartments and flaps on pieces of furniture and the like. Such locks are used primarily in locker systems, such as those provided in swimming pools and saunas, fitness centers, schools, universities, companies and the like, or in cabinets in offices, on lockers, compartments, flaps, drawers, etc. In known locks, the lock body is mounted on the furniture. This offers a relatively large amount of scope for vandalism and attempted break-ins, which can be problematic in schools, among other places, but also in other partially public facilities.

For this type of furniture, it is therefore advantageous if the lock has as flat a structure as possible in front of the furniture, i.e. it protrudes as little as possible from the door, flap or drawer. On the one hand, this has optical advantages; on the other hand, the lock is less susceptible to vandalism and attempted break-ins, as the lock body offers less surface area for attack.

The object of the invention is therefore to avoid the aforementioned disadvantages and to create a lock which only extends slightly in front of the furniture and whose lock body is largely accommodated in the furniture. Furthermore, the object of the invention is that the lock according to the invention can be easily mounted on a piece of furniture and/or that this piece of furniture can be converted. A further object of the invention is to provide a piece of furniture with a lock according to the invention. These objects are achieved by the characterizing features of claims 1 and 11, which have the following special significance.

The lock comprises a sleeve into which the knob can be inserted at least partially and can be held in place. The knob is held in the sleeve in such a way that it can be rotated in order to To activate the rotor and open the lock if there is authorization to do so. The sleeve can be inserted into the door, compartment, drawer or flap of the furniture (hereinafter referred to as the "furniture part" for simplicity) and stored there in a way that prevents it from twisting. Because the knob is at least partially inserted into the sleeve and this is arranged in the furniture part, the knob is also at least partially recessed into the furniture part and is less dependent on the furniture. The part of the lock body located in the sleeve is thus protected from damage and attempts to break in.

In a preferred embodiment, the knob in the sleeve is secured against being pulled out by a counter element. This can prevent the knob from being removed from the sleeve by unauthorized persons and thus gaining access to the interior of the furniture.

To make the sleeve easier to assemble and secure, it can preferably have an external thread. This is particularly advantageous when installing in furniture parts made of wood or similar materials, as will be described further down. It is therefore advantageous to provide a nut that secures the sleeve in the furniture part and that interacts with the external thread of the sleeve. It is particularly advantageous if the outer circumference of the nut has a structure such as knurling or ribbing so that the nut can be assembled and disassembled by an operator manually and without the aid of tools. This makes assembly of the lock according to the invention particularly simple and uncomplicated. The sleeve can have a projection with which it rests against the furniture part and is then countered by the nut when installed to secure the sleeve to the furniture part.

Preferably, a separating area is provided which separates the lock into different parts, whereby a part of the lock can be pulled out of the casing and/or the sleeve at least in parts. In order to make this possible, but at the same time to prevent accidental pulling out or pulling out by unauthorized persons, a An actuating opening can be provided in which a spring plate is arranged. Using a tool, the spring plate can then be elastically deformed in the actuating opening in order to release the partial area and to pull it at least partially out of the casing and/or the sleeve. The release can also be achieved by first rotating the casing through an angle after the spring plate has been actuated before the partial area can be pulled out, at least in part. The movement takes place in the manner of a bayonet lock. The pulled-out partial area can then contain a compartment for a battery or accumulator, which can then be accessed, for example to replace the battery. This can also be done when the lock is locked, so that an operator replacing the battery does not need to access the inside of the furniture locked with the lock. Changing the battery can therefore be carried out particularly easily and simply. This is particularly important for electronic or electromechanical locks.

The invention further relates to a piece of furniture with at least one of the locks described above. This lock can then be arranged on a piece of furniture such as a door, a flap, a compartment, a drawer or the like. The piece of furniture can have an opening to accommodate the sleeve. In order to hold the sleeve as simply and securely as possible, particularly in pieces of furniture made of wood and similar materials, the opening can be round with one or more flattened sides. The sleeve is then placed in this opening and locked on the other side of the piece of furniture. This means that the sleeve is held firmly in the piece of furniture.

Of course, it is also possible to arrange the lock according to the invention on the furniture part so that it penetrates the furniture part only with the rotor and/or the rotor and the stator.

Fig. 1:

ein erfindungsgemäßes Schloss mit Möbelteil in teilweiser Explosionsdarstellung,

Fig. 2:

das Schloss aus Fig. 1, in teilweiser Explosionsdarstellung in Seitenansicht,

Fig. 3:

das Schloss aus Fig. 1 und 2, in dem Möbelteil montiert in Seitenansicht im Teilschnitt,

Fig. 4:

das Schloss aus Fig. 1 bis 3 in dem Möbelteil montiert in Seitenansicht im Schnitt,

Fig. 5a-5d:

das Schloss aus Fig. 1 bis 4, im Teilschnitt bei der Freigabe und dem Herausziehen des Teilbereichs.

Further advantages and embodiments of the invention are shown in the dependent claims, the following description and the drawings. In the The invention is shown in several embodiments in the figures. They show:

Fig.1:

a lock according to the invention with furniture part in a partially exploded view,

Fig. 2:

the castle from Fig.1 , in partially exploded side view,

Fig. 3:

the castle from Fig. 1 and 2 , mounted in the furniture part in side view in partial section,

Fig.4:

the castle from Fig. 1 to 3 mounted in the furniture part in side view in section,

Fig. 5a-5d:

the castle from Fig. 1 to 4 , in the partial section when releasing and pulling out the partial area.

Fig.1 shows the lock 10 according to the invention and the furniture part 50 in a perspective exploded view. The lock 10 has a knob 20 and its casing 21 is inserted into a sleeve 30 which has an external thread 31. An opening 51 is made in the furniture part 50. This is round and has several flattened side surfaces 52 with which the external thread 31 interacts when the sleeve 30 is installed in the furniture part 50. If the sleeve 30 is installed in the opening 51 of the furniture part 50, it can be secured from the inside of the furniture by the nut 32. To simplify the installation of the nut 32, it has a structure 34, here a knurling, on its outer circumference 33. The nut 32 can therefore also be operated by hand without the aid of tools and the sleeve 30 can be secured in the furniture part 30.

Fig.2 shows the components again in side view. Here the casing 20 has not yet been inserted into the sleeve 30. To hold the knob 20 and the casing 21 in the sleeve 30, a counter element 22 is provided, with which the knob 20 can be fixed to the sleeve 30.

The built-in situation is from the Fig. 3 and 4 more clearly. In Fig.3 the furniture part 50 is shown in section. It can be seen that the sleeve 30 rests with its external thread 31 in the opening 51 in the furniture part 50. The sleeve 30 is countered by a nut 32 and thus secured in the furniture part 50. The nut 32 has a structure 34 on its outer circumference 33, which facilitates manual actuation of the nut 32. The sleeve 30 rests with its projection 35 on the furniture part 50 and is countered in this position by the nut 32.

Fig.4 shows the lock according to the invention in section. The knob and the locking mechanism located therein are shown only schematically here. One can see here the interaction of the projection 35 on the sleeve 30 and the external thread 31 with the nut 32 in order to fasten and secure the sleeve 30 to the furniture part 50. It is also clear how the counter element 22, which is arranged here on the stator of the lock 10, interacts with the sleeve 30 in order to fix the knob 20 to the sleeve 30.

In the Fig. 5a to 5d it is shown how a partial area 11 of the lock 10 in the separation area 40 can be separated from the rest of the lock 10 and partially pulled out of the lock 10. The lock 10 has an actuating opening 41 for this purpose, into which an operator can reach with a tool 60, here a pointed tool 60. A spring plate 42 is arranged in the actuating opening 41, on which the tool 60 acts, as in Fig. 5b shown. Here, the spring plate 42 is elastically deformed and thereby releases the partial area 11. This allows the casing 21 to be rotated by an angle, for example by 10°. The partial area 11 can then be pulled out of the casing 21. This situation shows Fig. 5d . The locking of the section 11 functions like a bayonet lock. By pulling out the section 11, the compartment 43 becomes accessible, in which a Battery or an accumulator are arranged. The battery can thus be easily replaced without having to open the lock 10 and make the contents of the furniture accessible. It is also possible to provide larger batteries, even if the lock 10 only protrudes slightly in front of the furniture part 50. In order to return the partial area 11 and return the lock 10 to its original state, the partial area 11 is first pressed back into the lock 10 and then the rotational movement is carried out in the other direction. The tool 60 no longer has to be used because the spring plate 42 automatically moves back to its original position. The partial area 11 is then securely arranged in the lock 10 again and can only be brought back into its extended position using the tool 60.

Fig.6 shows an installation situation in which the lock 10 according to the invention is positioned on the furniture part 50 and only its rotor and stator protrude through the furniture part 50. Here too, the lock 10 is secured to the furniture part 50 with the counter element 22 on the stator.

Finally, it should be noted that the embodiments shown here are merely exemplary embodiments of the invention. This is not limited to them. Rather, modifications and variations are possible. The lock can be installed on new furniture or retrofitted to existing furniture. It is possible to install the lock together with the sleeve without using tools. Of course, it is also conceivable to twist the section relative to the casing in order to be able to pull the section out.

List of reference symbols:

10

Lock

11

Subrange of 10

20

knob

21

Coat

22

Counter element

30

Sleeve

31

External thread

32

Mother

33

Outer circumference of 32

34

structure

35

head Start

40

Separation area

41

Operating opening

42

Spring plate

43

Academic subject

50

Furniture part

51

opening

52

Flattened side surface

60

Tool

Claims (14)

Lock (10) for doors, compartments, flaps or the like, hereinafter referred to as furniture part (50), on furniture or the like, with a locking unit comprising a knob (20), a stator and a rotor connected to the knob (20) in a torque-transmitting manner, at least one locking element and means for converting the rotor movement into an opening movement of the locking element, wherein the knob (20) has a casing (21) which encloses at least a part of the knob (20), characterized, that a sleeve (30) is provided into which the knob (20) can be inserted and held at least in some areas, that the knob (20) is rotatably mounted in the sleeve (30) to enable the rotor to be actuated by turning the knob (20) and that the sleeve (30) can be inserted into the door (50) or the compartment or the flap on the piece of furniture or the like and can be stored there in a twist-proof manner. Lock (10) according to claim 1, characterized in that the knob (20) in the sleeve (30) can be secured against being pulled out therefrom by a counter element (22). Lock (10) according to claim 1 or 2, characterized in that the sleeve (30) has an external thread (31). Lock (10) according to claim 3, characterized in that a nut (32) is provided which secures the sleeve (30) in the furniture part (50) with the interposition of the external thread (31). Lock (10) according to claim 4, characterized in that the nut (32) has a structure (34) such as knurling, fluting or the like on its outer circumference (33). Lock (10) according to one of claims 1 to 5, characterized in that the sleeve (30) has a projection (35) with which it rests on the furniture part (50) in the assembled state. Lock (10) according to one of claims 1 to 6, characterized in that a separating region (40) is provided at which a partial region (11) of the lock (10) can be pulled out of the casing (21) and/or the sleeve (30) at least in regions. Lock (10) according to claim 7, characterized in that an actuating opening (41) is provided in which a spring plate (42) is arranged, wherein the spring plate (42) in the actuating opening (41) can be elastically deformed by means of a tool (60) in order to release the partial region (11) and to pull it out of the casing (21) and/or the sleeve (30) at least in regions. Lock (10) according to claim 8, characterized in that after the elastic deformation of the spring plate (42), the casing (21) can be rotated relative to the partial region (11) by a fixed angle and only after the partial region (11) has been rotated can it be pulled out of the casing (21) and/or the sleeve (30) at least in some areas. Lock (10) according to one of claims 7 to 9, characterized in that in the partial area (11) a compartment (43) for at least one battery and/or at least one accumulator is provided, which is accessible from the outside when the partial area (11) is pulled out. Furniture with a lock (10) according to one of claims 1 to 10, characterized in that the lock (10) is in a furniture part (50) such as a door or a compartment or a flap or a drawer or the like of the furniture. Furniture according to claim 11, characterized in that an opening (51) for receiving the sleeve (30) is provided in the furniture part (50). Furniture according to claim 12, characterized in that the opening (51) is round with one or more flattened side surfaces (52). Furniture according to claim 11, characterized in that the lock (10) with the knob (20) and the casing (21) is arranged on a furniture part (50) and engages through the furniture part (50) only with the rotor or with the rotor and the stator.

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