EP3918165A1

EP3918165A1 - Flap fitting for furniture

Info

Publication number: EP3918165A1
Application number: EP20703187.3A
Authority: EP
Inventors: Martin NORDIEKER; Jens Poischbeg; Ralf TOFALL
Original assignee: Hettich ONI GmbH and Co KG
Current assignee: Hettich ONI GmbH and Co KG
Priority date: 2019-01-31
Filing date: 2020-01-30
Publication date: 2021-12-08
Anticipated expiration: 2040-01-30
Also published as: CA3121600A1; AU2020215770A1; US11851927B2; CN113227524B; KR20210121086A; WO2020157180A1; EP3918165B1; DE102019102491A1; US20220098910A1; CN113227524A; PL3918165T3

Abstract

The invention relates to a flap fitting (10) for furniture, having a lever mechanism (16) comprising multiple levers (17, 19) for guiding a flap of the furniture, wherein the lever mechanism (16) is retracted at least partly into a housing (11) of the lever fitting (10) in a closed position. The flap fitting (16) is characterized in that an auxiliary element (20) is releasably secured to one of the levers (17, 19) of the lever mechanism (16). The auxiliary element (20) has a locking section (22) which blocks a movement of the lever (17, 19) relative to the housing (11) in a locking position. After the lock of the auxiliary element is released, the auxiliary element is pivotally secured to one of the levers (17, 19) of the lever mechanism (16) in order to extend the lever mechanism (16) out of the opening (12) by pulling the auxiliary element (20).

Description

Flap fitting for furniture

The invention relates to a flap fitting for a piece of furniture, which has a lever mechanism with a plurality of levers for guiding a flap of the piece of furniture, the lever mechanism being at least partially moved into a housing of the flap fitting in a closed position.

Flap fittings are used in furniture, for example kitchen furniture and in particular wall cabinets, in order to be able to close a body of furniture, which is usually open to the front, with a guided flap. A flap differs from a door by the orientation of its swivel axis, which is vertical for doors and horizontal for flaps. The flap can be in one piece or consist of several individual parts, such as in a folding flap, in which different parts of the flaps move relative to each other in the movement sequence.

As a rule, door hinges are used to guide doors, which are arranged on the side of the pivot axis between the furniture body and the door. A comparable arrangement of hinges can in principle also be used with flaps. However, it is often desirable to open the flaps of a combined swivel and slide movement in order to obtain the greatest possible access to the interior, for example in the case of a wall cabinet, without the flap having to be pivoted to a horizontal position in which it moves from User to close is difficult or impossible to reach. For this reason, certain flap fittings have been established, which are not arranged along the pivot axis between the furniture body and the flap, but are arranged laterally on (usually both) side areas of the furniture body.

From the document DE 10 2017 104 169 A1, a furniture body with flaps is known which is not set up on a side wall of the furniture body, but rather is integrated into the side wall of the furniture body. The flap fittings are characterized on the one hand by a very compact, in particular very thin design, and on the other hand by the fact that the entire lever mechanism of the flap fitting that guides the mounted flap completely or almost completely into a housing when the flap fitting is closed of the flap fitting retracts. As In the context of this application, the closed state of the flap fitting is understood to be a state in which the opening of the furniture body is closed by an anchored flap.

Such a flap fitting (or a furniture body in which the flap fitting is integrated) is delivered in its closed state. Characterized in that the lever mechanism is essentially completely retracted into an opening of the housing of the fitting, there is then the difficulty of moving the lever mechanism of the flap fitting out of the housing in order to be able to mount the flap. Often there is also an automatic locking system for the flap fitting, which pulls the lever mechanism under spring force into the closed position from a certain closing angle. The lever mechanism is then held in the closed state with spring force in the housing, which additionally makes it difficult to move the lever mechanism out. In addition, there is a risk that the lever mechanism is inadvertently moved out of the housing due to unintentional application of force to the lever mechanism or due to acceleration forces during transport or when installing the flap fitting. If the flap fitting is provided with an automatic closing mechanism and an automatic opening mechanism that moves the lever mechanism into a fully open position when a certain opening angle is exceeded, unintentional removal of the lever mechanism can be dangerous.

From the document DE 20 2014 103 519 U1 a flap fitting with a locking pin is known, which can be inserted into a housing opening and prevents an unintentional removal of a lever. The safety pin itself is locked in the housing so that it does not fall out during transport. The locking pin can be locked by moving the lever manually. Such a locking mechanism is mus with a flap fitting, in which the lever mechanism essentially moves into an opening of the housing, due to the described difficulty of pulling the lever mechanism out of the housing as long as no flap is installed, but is unsuitable.

It is therefore an object of the present invention to provide a flap fitting of the type mentioned at the outset, the lever mechanism of which can easily be extended manually even without the flap attached. This task is solved by a flap fitting of the independent claim. Advantageous refinements and developments are subject to the dependent claims.

A flap fitting according to the invention of the type mentioned at the outset is characterized in that an auxiliary element with a connecting section is fastened detachably and pivotably to one of the levers of the lever mechanism in order to pull the lever mechanism out of the opening by pulling on the auxiliary element.

The auxiliary element thus represents a tool with which the lever mechanism can be simply pulled out of the housing of the flap fitting. By attaching the auxiliary element to one of the levers, preferably the outer one of the levers, a pull can be applied directly to the lever mechanism without slipping off the danger that exists, for example, if an attempt is made to use a pair of pliers or the like to force the lever mechanism. to grab. This is preferred

Auxiliary element as well as the lever mechanism in the delivery state are arranged inside the housing in such a way that it does not protrude beyond the housing edges in order not to interfere with the installation or transport of the flap fitting. However, the pivoting connection with the lever mechanism means that the auxiliary element can easily be in this case are moved out of the housing - in contrast to the lever mechanism itself, which is usually spring-loaded by a locking mechanism. The releasable connection of the auxiliary element to the lever mechanism means that the auxiliary element can be removed as soon as the lever mechanism has been pulled out of the housing and the auxiliary element thus has its service has fulfilled.

It is noted that in the context of the application, each element surrounding the lever mechanism in the closed state is to be regarded as a housing of the flap fitting. For example, side plates of the flap fitting which are spaced apart from one another and arranged parallel to one another can form its housing. If the flap fitting is integrated into a furniture panel in such a way that its lever mechanism extends from an opening in the front of the furniture panel, the furniture panel also represents a housing of the flap fitting or is part of the housing of the flap fitting.

In an advantageous embodiment of the flap fitting, the auxiliary element has a locking section which blocks movement of the lever relative to the housing in a locking position. In this way, the auxiliary element also takes on its function as a pull-out aid another safety function to prevent the lever mechanism from extending unintentionally. Since the auxiliary element, unlike the securing elements known from the prior art, is not fastened to the housing, but is conversely fastened to the lever itself, it can block a movement of the lever relative to the housing with a locking section. On the other than in the known securing elements, there is the advantage that after a manual release of the lock relative to the housing, the auxiliary element itself, which is then still attached to the lever, can be used as a pull-out aid for the lever and thus the lever mechanism.

In one configuration, the connecting section can be articulatedly connected to the locking section. Preferably, the Verbindungsab section and the locking portion are aligned in a locking position substantially parallel to each other, the locking portion engaging behind a portion of the housing. If the lock is then released, the connecting section and the locking section are aligned transversely to one another in a removal position in which the lever mechanism on the auxiliary element can be extended from the housing. Preferably, the connecting portion and the locking portion in the locking position with each other. This prevents accidental unlocking. For latching, the connecting section or the locking section has a latching mechanism which e.g. comprises a resilient tab with a latch.

In a further advantageous embodiment of the flap fitting, an unlocking opening for introducing a tool is present in order to release the locking. The unlocking opening can be adjacent to the resilient tab, for example, in order to use the tool to move the tab away from a locking partner. The fact that a tool must be used means that the risk of unintentional unlocking is particularly low.

The entire auxiliary element, including the locking mechanism, can be arranged inside the housing by providing the unlocking opening. As an alternative to the unlocking opening into which the tool is inserted, the resilient tab can also be positioned such that the locking can be released directly or indirectly without tools, for example by pressure with a finger.

In a further embodiment of the flap fitting, the connecting section has a fork head with which the auxiliary element is inserted into a pin-like fastening element is attached to the lever chain for fastening in the closed position. Such a fastening element is often present on the lever chain in order to hang in or snap in a mounting plate on which the flap to be guided is mounted. This fastening element is well suited for pivotally connecting the auxiliary element to the lever chain. The fork head is then preferably designed such that it can be detached from the fastening element by a rotary movement. The rotational movement differs from the pulling movement with which the lever chain is pulled out of the housing, so that there is no danger that the auxiliary element will come loose while the pull is being exerted.

The invention is explained in more detail below on the basis of exemplary embodiments with the aid of figures. The figures show:

Fig. 1 is a side view of a flap fitting with a

Auxiliary element in a delivery state;

Fig. 2a-2i an illustration of the flap fitting with auxiliary element ana log to Figure 1 in different stages of a process for unlocking and extending the lever mechanism.

Fig. 3 is a representation of the flap fitting with auxiliary element ana log to Figure 1 in a release with the lever retracted.

4a is an isometric representation of an auxiliary element for a

Flap fitting in a locked state; and

4b is an isometric representation of an auxiliary element for a

Flap fitting in an unlocked state.

In Fig. 1, an embodiment of a proposed Klappenbe beat 10 is shown in a side view.

In the description, terms such as above, below, left, right, rear or in front exclusively relate to the exemplary representation selected in the respective figures. The terms front and rear are generally related to an opening movement of a guided flap. The front side is a side facing the user. The flap fitting 10 has a housing 11 with an end opening 12. The housing 11 of the flap fitting 10 is essentially cuboid, the thickness of the housing in the viewing direction of FIG. 1 being small compared to the visible dimensions in the plane of the drawing in FIG. 1. In this respect, the housing 11 has the geometry of a flat plate. In the illustrated embodiment, three of the four corners of the housing 11 visible in FIG. 1 are rounded and the fourth corner is additionally flattened. This un difference serves, inter alia, to make it easier to see the orientation of the flap fitting 10 during its locking position or assembly.

The housing 11 of the flap fitting 10 is in the present case formed from two side plates 13, which are spaced apart from one another by a partially circumferential frame 14 and are aligned parallel to one another. The side plates 13 and the frame 14 can be held together, for example, by rivets or screws, not shown here. In Fig. 1 not visible components of the flap fitting 10 can also be mounted on the side plates and / or the frame 14 with the aid of rivets or other fastening elements. Rivets or bolts that lead through both side plates 13 can both serve to hold the housing 11 together and also act as fastening elements or axes of rotation for the further components of the flap fitting 10. The side plates 13 are preferably sheet metal and the frame 14 is an injection molded plastic part. However, other material combinations are also possible.

The flap fitting 10 has a fleece mechanism 16 which, in the illustrated closed state of the flap fitting 10, completely in the housing 11, i.e. is positioned between the side plates 13. From the Flebelwerk 16 in the Dar position of FIG. 1, only an outer Flebel 17 can be partially recognized by the side plate 13 facing the viewer being partially broken open.

Installed, the flap fitting 10 is preferably inte grated in a furniture board, the front opening 12 of the housing 11 being accessible through a front opening of the furniture board.

On the illustrated outer fleece 17 of the Flebelwerk 16 is, usually via a mounting plate, which is guided by the flap fitting 10 flap is arranged. When the flap is opened, the Flebelwerk 16 moves in a combined Pushing and pivoting movement out of the housing 11 of the flap fitting 10 in order to guide the flap into an open state. Analogous to

In the closing state, the position of the lever mechanism 16 in which a mounted flap is fully open is referred to as the opening state of the flap fitting.

In the delivery state of the flap fitting 10, an auxiliary element 20 is connected to the outer lever 17. The auxiliary element 20 is shown in more detail in conjunction with FIGS. 4a and 4b below. It is constructed in several parts and has a connecting section 21 and a locking section 22, which are pivotally connected to one another about an axis of rotation 23. The axis of rotation 23 lies in an end region of the connecting section 21 and a central region of the locking section 22.

In the use situation of the auxiliary element 20 in the delivery state of the flap fitting 10, the connecting portion 21 and the locking portion 22 run essentially parallel to one another, so that the auxiliary element 20 assumes an elongated geometry. In this arrangement of the two sections 21, 22 to one another, the auxiliary element 20 is locked by a locking mechanism 221, which is formed at an end region of the locking section 22. It engages with the connecting section 21. An opposite, free end of the locking section 22 extends to the frame 14, specifically the locking section 22 engages behind an undercut 15 of the frame 14.

In the illustrated state, the extended auxiliary element 20 is an extension of the outer lever 17 of the lever mechanism 16. The outer lever 17 has a pin-like fastening element 18 for a mounting element of the flap to be brought. It can be provided, for example, that the mounting element is hooked into the fastening element 18 or locked to the sem. The auxiliary element 20 is also fastened to the pin-like fastening element 18, in the present case with a slotted fork head 211 (see, for example, FIGS. 4a and 4b).

Reaching out of the undercut 15 prevents the outer lever 17 and thus the lever mechanism 16 from pivoting out. An unintentional swiveling of the lever mechanism 16 during transport and / or during Assembly, for example due to high acceleration forces, is prevented by the auxiliary element 20 used.

2a to 2i, an unlocking and extending sequence is shown with which the flap fitting 10 is unlocked and its lever mechanism 16 will move out. The individual partial images of the sequence are each designed in the manner of FIG. 1, that is to say as a side view of the partially broken flap fitting 10. For the sake of clarity, the flap fitting 10 is only partially shown. 2a and 2b, the auxiliary element 20 is additionally shown in section in order to make the unlocking process more transparent.

To unlock the auxiliary element 20, a tool 1 is first inserted with its tip 2 into an unlocking opening 222 of the locking section 22, as shown in FIG. 2a. In the example shown, a multi-tooth screwdriver is used as tool 1, that is to say a tool which is usually present, not a special tool. Other tools with a comparable tip 2, e.g. a hexagon key, who can use the.

As FIG. 2b shows, the latching mechanism 221 is then released by a tilting movement of the tool 1 and thus also the fixing of the auxiliary element

20 in the stretched geometry. The auxiliary element 20 can then be angled out of the stretched orientation on the axis of rotation 23, as shown in FIG. 2c. From this moment on, tool 1 is no longer required. Due to the angled position of the locking section 22 relative to the connecting section 21, the end of the locking section 22 is moved out of the region of the undercut 15, as a result of which the lever mechanism 16 is no longer secured. This is shown in FIGS. 2d and 2e.

From the position shown in Fig. 2e, the lever mechanism 16 can be pulled out of the housing 11 by pulling on the locking section 22 which is now free and outside the side plates 13. When applying a train force in the direction of the connecting portion 21 in Fig. 2e, the auxiliary element 20 remains connected to the outer lever 17. This is due to the design of a slotted fork head 211 at the connecting section

21 and the pin-like fastening element 18 on the outer lever 17. As can be seen from Fig. 2f, an unintentional loosening of the connection between the connecting portion 21 and the outer lever 17 in the ge shown orientation of the connecting portion 21 relative to the outer lever 17 is not possible. Accordingly, the lever mechanism 16 can be safely and safely pulled out with the aid of the auxiliary element 20 against the tensile forces of an automatic closing mechanism of the lever mechanism 16 via a partially open position (FIG. 2g) to the fully open position (FIG. 2h). 2g and 2h, further levers 19 of the lever mechanism 16 are visible in addition to the outer lever 17. Finally, as shown in Fig. 2i, the auxiliary element 20 can be removed by turning it counterclockwise.

Fig. 3 shows that the auxiliary element 20 can be removed even after unlocking has been carried out without the lever mechanism 16 using the

Auxiliary elements 20 is extended. For this purpose, the unlocking sequence of FIGS. 2a to 2e is first run through. Starting from the state shown in Fig. 2e Darge, the auxiliary element 20 is rotated counterclockwise until the fork head 211 can be removed from the pin-like fastener 18. So that this is possible with the given geometry of the outer lever 17 in the area of the fastening element 18, the fork head 211 is provided with a flat 213 at a suitable point.

4a and 4b, the auxiliary element 20 is shown separately in each case in an isometric representation. 4a shows the auxiliary element 20 in the extended, locked geometry. 4b shows the auxiliary element 20 in the opened position in which the lever mechanism 16 can be extended with the aid of the auxiliary element 20.

The latching mechanism 221 can be seen in more detail in the figures. It is formed by a resilient tab 223, on the free end of which a detent 224 is formed. In the stretched and locked state shown in FIG. 4a, the locking lug 224 matures over part of the connecting section 21. The locking section 22 is preferably made in one piece from a plastic injection molded part. The resilient tab 223 can be integrally formed. Likewise, the axis of rotation 23 can also be formed integrally from molded projections.

The connecting section 21 is preferably produced from a sheet metal in a stamping and bending process. Its basic structure is U-shaped with one Base and legs, the two legs are perpendicular to the axis of rotation 23. In the stretched and locked state of the auxiliary element 20, the u-shaped connecting portion 21 partially engages the locking portion 22. The latching lug 224 of the locking section 22 engages over an edge of the base of the U-shaped connecting section 21. The fork head 211 is formed in both parallel legs of the connecting section 21. The slots 212 in the fork head 211 which have already been mentioned are identified in FIGS. 4a and 4b by the reference number 212. At the locking mechanism 221 opposite end of the locking portion 22, a latch 225 is formed with which the locking portion 22 for locking the lever mechanism 16 is positioned behind the undercut 15 of the flap fitting 10. In order to be able to grip the locking section 22 well when pulling out the lever mechanism 16, recessed grips 226 are also formed on the back of the locking section 22.

Reference numerals

1 tool

2 tip

10 flap fitting

11 housing

12 front opening

13 side plate

14 frames

15 undercut

16 lever mechanism

17 outer lever

18 fastener

19 additional levers

20 auxiliary element

21 connecting section

211 clevis

212 slot

213 flattening

22 locking section

221 locking mechanism

222 release opening

223 tab

224 latch

225 bars

226 recessed grip

23 axis of rotation

Claims

Expectations

1. flap fitting (10) for a piece of furniture, comprising a lever mechanism (16) with a plurality of levers (17, 19) for guiding a flap of the piece of furniture, the lever mechanism (16) at least partially in a closed position in a housing (11) of the Flap fitting (10) is retracted and the lever mechanism (16) of the flap fitting (10) can be reached in the assembled state through an end-side opening (12) of the housing (11), characterized in that an auxiliary element (20) with a connecting section ( 21) detachable and pivotable on one of the levers (17, 19) of the lever mechanism (16) is fastened in order to extend the lever mechanism (16) from the opening (12) by pulling on the auxiliary element (20).

2. Flap fitting (10) according to claim 1, wherein the auxiliary element (20) has a locking portion (22) which blocks a movement of the lever (17, 19) relative to the housing (11) in a locking position.

3. flap fitting (10) according to claim 2, wherein the connection from

cut (21) is articulated to the locking section (22).

4. flap fitting (10) according to claim 3, wherein the connection from

cut (21) and the locking section (22) in a locking position are aligned substantially parallel to one another, the locking section (22) engaging behind a section of the housing (11).

5. flap fitting (10) according to claim 3 or 4, wherein the connecting portion (21) and the locking portion (22) in a removal position, in which the lever mechanism (16) on the auxiliary element (20) from the Ge housing (11th ) can be extended, aligned transversely to each other.

6. flap fitting (10) according to any one of claims 2 to 5, in which the connecting section (21) and the locking section (22) latch together in the locking position.

7. flap fitting (10) according to claim 6, in which for locking Ver connecting portion (21) or the locking portion (22) has a locking mechanism (221).

8. flap fitting (10) according to claim 7, wherein the locking mechanism (221) comprises a resilient tab (223) with a locking lug (224).

9. flap fitting (10) according to claim 7 or 8, wherein an unlocking opening (222) for introducing a tool (1) is present to release the latching.

10. flap fitting (10) according to claim 8 and 9, wherein the unlocking opening (222) of the resilient tab (223) is adjacent to the tool (1) the tab (223) from a locking partner to be because of.

11. flap fitting (10) according to claim 8, wherein the resilient tab (223) is positioned so that the locking can be released directly or indirectly without tools.

12. flap fitting (10) according to any one of claims 1 to 11, wherein the connecting portion (21) has a fork head (211) with which the auxiliary element (20) in a pin-like fastening element (18) on a lever chain of the lever mechanism (16 ) is attached for fastening in the closed position.

13. flap fitting (10) according to claim 12, wherein the fork head (211) is designed such that it can be detached from the fastening element (18) by a rotary movement.

14. flap fitting (10) according to any one of claims 1 to 13, wherein the lever to which the auxiliary element (20) is attached is the outer lever (17) of the lever chain (16).