EP4257788A2 - Furniture fitting - Google Patents

Abstract

Furniture fitting (4), comprising: - a carrier (5), which has at least one essentially flat fastening surface (5a, 5b) for fastening to a furniture part (2a), - at least one adjusting part (12) movable relative to the carrier (5) - an adjusting device (9) for adjusting a position of the adjusting part (12) relative to the carrier (5), the adjusting device (9) having at least one actuating element (16) which can be rotated about an axis of rotation (18), the adjusting part (12) can be adjusted relative to the carrier (5) by exerting a torque on the at least one actuating element (16), the axis of rotation (18) of the actuating element (16) having an angle (α) greater than 0° and less than 90° to the at least one fastening surface (5a , 5b) of the carrier (5), the actuating element (16) being coupled to the actuating part (12) via an angularly movable coupling device (20), which preferably comprises a ball joint.

Description

• einen Träger, welcher wenigstens eine im Wesentlichen ebene Befestigungsfläche zur Befestigung an einem Möbelteil aufweist,
• zumindest einen relativ zum Träger bewegbaren Stellteil,
• eine Einstellvorrichtung zur Einstellung einer Lage des Stellteiles relativ zum Träger, wobei die Einstellvorrichtung zumindest ein um eine Drehachse drehbares Betätigungselement aufweist, wobei das Stellteil durch Ausübung eines Drehmomentes auf das zumindest eine Betätigungselement relativ zum Träger einstellbar ist, wobei die Drehachse des Betätigungselementes einen Winkel größer 0° und kleiner 90° zur wenigstens einen Befestigungsfläche des Trägers einschließt.

The present invention relates to a furniture fitting comprising:

• a carrier which has at least one essentially flat fastening surface for fastening to a furniture part,
• at least one control part that can be moved relative to the carrier,
• an adjusting device for adjusting a position of the adjusting part relative to the carrier, the adjusting device having at least one actuating element rotatable about an axis of rotation, the adjusting part being adjustable relative to the carrier by exerting a torque on the at least one actuating element, the axis of rotation of the actuating element having an angle larger 0° and less than 90° to at least one fastening surface of the carrier.

The invention further relates to a piece of furniture with a furniture body, at least one furniture part that is movable relative to the furniture body and with at least one furniture fitting of the type to be described.

The adjustment device of a furniture fitting (for example furniture drives, furniture hinges or furniture dampers) can be used to specifically influence a large number of parameters of the furniture fitting. For example, it is possible for a position of the furniture fitting or a component of the furniture fitting to be adjustable relative to a furniture part using the adjusting device. It is also possible that one can be used as a furniture damper trained furniture fitting, a position of the furniture damper relative to a furniture part and / or a damping stroke of the furniture damper and / or a damping performance of the furniture damper can be adjusted. Furthermore, it is possible that in the case of a furniture fitting designed as a furniture drive, a force of a spring device on an actuating arm arrangement of the furniture drive can be adjusted to compensate for a weight force of the furniture part to be moved.

In the EP 0 952 290 A2 A furniture drive is shown, with a rotatable actuating element being arranged on a front end face of the housing, through which a spring force acting on the actuating arm arrangement can be adjusted. Also known are furniture drives in which the actuating element can be operated from the side using a tool, as is the case, for example, in FIG. 19a WO 2006/005086 A1 is shown.

In certain assembly situations, difficulties may arise when adjusting the actuating element. This is the case, for example, when the carrier of the furniture fitting is mounted on a side wall of the furniture body, set back from an end face of a furniture body. In such a case, when adjusting the actuating element using a screwdriver or a cordless screwdriver, a person's hand or the drill chuck of the cordless screwdriver would collide with the side wall of the furniture body. Especially with furniture fittings, which have become much narrower and therefore more compact in recent years, adjustment in such assembly situations is considerably more difficult.

Furniture fittings with a rotatably mounted actuating element, the axis of rotation of which runs obliquely to a fastening surface of the furniture fitting, are, for example, in WO 2018/060032 A1 , WO 2014/134642 A1 , EP 2 762 666 A1 and the EP 1 707 723 A2 shown.

The object of the present invention is to provide a furniture fitting of the type mentioned at the beginning while avoiding the disadvantages discussed above.

This is achieved according to the invention by the features of patent claim 1. Further advantageous embodiments of the invention are defined in the dependent claims.

According to the invention it is provided that the actuating element is coupled to the actuating part via an angularly movable coupling device, which preferably comprises a ball joint.

In this way, the actuating element can be rotatably mounted in three directions of movement and enables a variety of relative positions of the actuating element for comfortable and easily accessible actuation.

The axis of rotation of the actuating element can be arranged obliquely to a fastening surface of the carrier, with the actuating element being conveniently accessible and easy to operate in an assembled state of the furniture drive by positioning a tool obliquely on the actuating element.

It is preferably provided that the axis of rotation of the actuating element encloses an angle greater than 5° and less than 80°, preferably an angle greater than 10° and less than 50°, to at least one fastening surface of the carrier.

According to a preferred exemplary embodiment, it can be provided that the actuating element is movable by the angularly movable coupling device in such a way that the angle which the axis of rotation of the actuating element and the fastening surface of the carrier form to one another is, preferably continuously, adjustable. In other words, the actuating element - in addition to the rotational movement about the axis of rotation - is mounted movably relative to the carrier within predetermined limits, so that at least one or more relative positions of the actuating element are available for actuation of the actuating element.

The actuating element can be mounted to be infinitely movable relative to the carrier within predetermined limits. Alternatively, it is possible for the actuating element to be positionable at at least one or more predetermined or predeterminable positions.

The actuating element can have a tool holder for actuating the actuating element using a tool. The actuating element can be driven by exerting a torque on the tool holder using a tool, for example a screwdriver or a cordless screwdriver. The tool holder can, for example, have a cross slot shape (for example a Pozidriv profile), a square profile, a hexagonal profile or a hexagonal profile (for example a Torx profile).

The actuating element can be connected to a shaft which is mounted in a recess in a form-fitting manner with radial play.

The actuating element can have at least one friction surface, via which the actuating element is held in a self-locking manner in at least one relative position. To improve self-locking, a spring element can be provided which presses the friction surface of the actuating element against a corresponding stop surface.

Fig. 1a, 1b

zeigen ein Möbel mit einem bewegbaren Möbelteil in einer perspektivischen Ansicht sowie in einer Seitenansicht,

Fig. 2a, 2b

zeigen den am Möbelkorpus montierten Möbelbeschlag in einer Seitenansicht sowie eine vergrößerte Detaildarstellung hierzu,

Fig. 3a, 3b

zeigen den Möbelbeschlag in einer perspektivischen Ansicht sowie den am Möbelteil montierten Möbelbeschlag in einer Ansicht von vorne,

Fig. 4

zeigt den als Möbelantrieb ausgebildeten Möbelbeschlag in einer Explosionsansicht,

Fig. 5a-5c

zeigen verschiedene Ansichten des Betätigungselementes, welches über eine winkelbewegliche Kupplungsvorrichtung mit einem Gewindeabschnitt gekoppelt ist,

Fig. 6

zeigt die Ausführungsform gemäß den Fig. 5a-5c in einer Explosionsansicht.

Further details and advantages of the present invention result from the following description of the figures.

Fig. 1a, 1b

show a piece of furniture with a movable furniture part in a perspective view and in a side view,

Fig. 2a, 2b

show the furniture fitting mounted on the furniture body in a side view as well as an enlarged detailed view,

Fig. 3a, 3b

show the furniture fitting in a perspective view and the furniture fitting mounted on the furniture part in a view from the front,

Fig. 4

shows the furniture fitting designed as a furniture drive in an exploded view,

Figs. 5a-5c

show different views of the actuating element, which is coupled to a threaded section via an angularly movable coupling device,

Fig. 6

shows the embodiment according to Figs. 5a-5c in an exploded view.

Fig. 1a shows a perspective view of a furniture 1 with a furniture body 2 and a furniture part 3 that can be moved relative to the furniture body 2. In the exemplary embodiment shown, a furniture fitting 4 is shown, which is designed as a furniture drive 4a for moving the movable furniture part 3. Alternatively, the furniture fitting 4 can be designed as a furniture hinge, as a drawer pull-out guide, as a furniture damper (for example with a piston-cylinder unit) or as a mounting plate.

Fig. 1b shows the furniture 1 in a side view, with a carrier 5 of the furniture fitting 4 being attached to a vertically extending furniture part 2a in the form of a side wall of the furniture body 2. The furniture fitting 4 can have an actuating arm arrangement 6 with at least one actuating arm 6a, which is pivotally mounted on the carrier 5 about an axis of rotation 7. In the exemplary embodiment shown, the actuating arm arrangement 6 has a plurality of pivotable actuating arms 6a, 6b, 6c for moving the movable furniture part 3.

Fig. 2a shows the furniture fitting 4 attached to the vertical furniture part 2a in the form of the furniture drive 4a in a side view. To apply force to the actuating arm arrangement 6 is a spring device 8, preferably with at least one coil spring trained compression spring, provided. A torque of the spring device 8 acting on the actuating arm arrangement 6 can be adjusted by an adjusting device 9 of the furniture fitting 4. The spring device 8 engages an adjusting part 12, the position of the adjusting part 12 in relation to an axis of rotation 15 of an intermediate lever 14 being adjustable by actuating the adjusting device 9. The intermediate lever 14 can have a guide 13, for example in the form of an elongated hole, for adjustable mounting of the control part 12.

Fig. 2b shows the in Fig. 2a framed area in an enlarged view. The adjusting device 9 has at least one rotatably mounted actuating element 16, with rotation of the actuating element 16 using a tool 17 ( Fig. 3a, 3b ) a position of the control part 12 in or along the guide 13 of the intermediate lever 14 and thus an effective torque of the spring device 8 on the control arm arrangement 6 can be adjusted. The furniture fitting 4 has a transmission mechanism for transmitting a force from the spring device 8 to the actuating arm arrangement 6, the transmission mechanism having a control cam 10 and a pressure roller 11 loaded by the spring device 8. The pressure roller 11 can be moved along the control cam 10 when the actuating arm arrangement 6 moves. In the exemplary embodiment shown, the pressure roller 11 is rotatably mounted on the intermediate lever 14, while the control cam 10 is arranged or formed on the actuating arm 6a which can be pivoted about the axis of rotation 7. In a mechanical reversal, it is also possible to arrange the pressure roller 11 on the actuating arm 6a and the control cam 10 on the intermediate lever 14.

Fig. 3a shows the furniture fitting 4 in the form of the furniture drive 4a in a perspective view. The carrier 5 of the furniture fitting 4 is preferably essentially cuboid-shaped and has at least one fastening surface 5a, 5b for fastening to a furniture part 2a. The fastening surfaces 5a, 5b are each essentially flat and spaced apart from one another essentially parallel, with the furniture fitting 4 via the first fastening surface 5a on a first (right) furniture part 2a and via the second fastening surface 5b on a second one opposite the first furniture part 2a ( left) furniture part 2a is to be attached. In the exemplary embodiment shown, the actuating arm 6a, which can be pivoted about the axis of rotation 7, can be releasably locked with a further actuating arm 6b, 6c of the actuating arm arrangement 6, the further actuating arm 6b, 6c being to be connected to the movable furniture part 3. The actuating element 16 of the adjusting device 9 can be rotated using a tool 17, for example a screwdriver, whereby a torque of the spring device 8 acting on the adjusting arm arrangement 6 can be adjusted.

The carrier 5 can have a front end face and a lower long side, wherein the actuating element 16 can preferably be arranged in the area of the front end face, the lower long side or in the area of the fastening surfaces 5a, 5b.

Fig. 3b shows the furniture fitting 4, which is mounted on the furniture part 2a via the first fastening surface 5a of the carrier 5. The actuating element 16 is rotatably mounted about an axis of rotation 18, the axis of rotation 18 of the Actuating element 16 includes an angle (α) greater than 0° and less than 90°, preferably greater than 5° and less than 80°, preferably greater than 10° and less than 50°, to at least one fastening surface 5a of the carrier 5. In this way, it can be avoided that the handle of the tool 17 or the hand of a user, which encloses the handle of the tool 17 when the actuating element 16 is actuated, collides with the furniture part 2a. In this way, the ease of use of the actuating element 16 can be improved. This is particularly advantageous if the fastening surfaces 5a, 5b are at a relatively small distance from one another for reasons of a compact design of the furniture fitting 4.

The actuating element 16 is positioned or can be positioned at at least one or more predetermined or predeterminable positions within the angle (α). According to one exemplary embodiment, it can be provided that the actuating element 16 is infinitely movable within the defined angle (α), with a large number of positions being available to a user for rotating the actuating element 16 about the axis of rotation 18. The actuating element 16 can be connected to an angularly movable coupling device 20 ( Fig. 5a ), which preferably comprises a ball joint, be stored. So that the actuating element 16 is held self-locking in a relative position, at least one friction surface 23a ( Fig. 5a ) be provided.

When the furniture fitting 4 is in the intended assembled state, the actuating element 16 can face the movable furniture part 3 and be arranged in a front area of the carrier 5. This is the way it is Actuating element 16 can be easily operated from the front in an assembled state of the furniture fitting 4 using the tool 17.

Fig. 4 shows the furniture fitting 4 designed as a furniture drive 4a in an exploded view. The carrier 5 has two spaced-apart fastening surfaces 5a, 5b for fastening to a furniture part 2a, the spring device 8 for applying force to the adjusting arm 6a and the adjusting device 9 for adjusting a force of the spring device 8 on the adjusting arm 6a arranged between the fastening surfaces 5a, 5b are. The spring device 8 can have at least one or more compression springs, which are supported on an adjusting part 12 that can be adjusted by the adjusting device 9. By rotating the actuating element 16 about the axis of rotation 18 ( Fig. 3b ), the control part 12 can be moved in a first direction towards the axis of rotation 15 of the intermediate lever 14 and in a second direction away from the axis of rotation 15 of the intermediate lever 14. In this way, the torque exerted by the spring device 8 on the actuating arm 6a can be adjusted.

The actuating element 16 is connected to a threaded section 19 via an angularly movable coupling device 20, the threaded section 19 being rotatable by rotation of the actuating element 16. The control part 12 is in threaded engagement with the threaded section 19, the control part 12 being movable along the threaded section 19 by rotating the actuating element 16. The threaded section 19 has a longitudinal axis which is essentially parallel to the at least one Fastening surface 5a, 5b of the carrier 5 can be aligned. The pressure roller 11 is rotatably mounted on the intermediate lever 14 and can be moved along the control cam 10 of the adjusting arm 6a when the actuating arm 6a moves about the axis of rotation 7.

Fig. 5a shows the actuating element 16, which is coupled via the angularly movable coupling device 20 to the threaded section 19 for the adjustable mounting of the adjusting part 12. The actuating element 16 can have a tool holder 22 for actuating the actuating element 16 by means of a tool 17. To support the actuating element 16 in certain areas, a housing 21 is provided, in which the angularly movable coupling device 20 is accommodated.

Fig. 5b shows a cross section of the Fig. 5a in a first position of the actuating element 16. The actuating element 16 is connected to a shaft 24, which is mounted in a recess 25 in a form-fitting manner with radial play. The actuating element 16 can have at least one, preferably spherical segment-shaped, friction surface 23a, via which the actuating element 16 is held in a self-locking manner in at least one relative position. In the figure shown, the friction surface 23a connected to the actuating element 16 interacts with a corresponding stop surface 23b of the housing 21. To limit the angle of the actuating element 16, at least one stop 26a, 26b is provided, which are each arranged on the housing 21 in the exemplary embodiment shown.

The threaded section 19 has a longitudinal axis (L), with the axis of rotation 18 of the actuating element 16 and the longitudinal axis (L) of the threaded section 19 running non-parallel to one another. For example, it can be provided that the axis of rotation 18 of the actuating element 16 and the longitudinal axis (L) of the threaded section 19 enclose an angle between 10° and 60° to one another.

Fig. 5c shows a cross section of the Fig. 5a in a second position of the actuating element 16. In the figure shown, the actuating element 16 rests on the stop 26a, so that a further pivoting movement (ie exceeding the maximum permissible angle (α)) of the actuating element 16 is prevented. It can be seen that the position of the axis of rotation 18 in Fig. 5b and the position of the axis of rotation 18 in Fig. 5c differ from each other.

Fig. 6 shows the embodiment according to Figs. 5a-5c in an exploded view. The threaded section 19 has an end region with the recess 25, in which the shaft 24 of the actuating element 16 can be received in a form-fitting manner with radial play. The housing 21 has two interconnectable half-shells 21a, 21b, between which the actuating element 16 with the friction surface 23a is received. By means of a spring element 27, for example in the form of a compression spring, the friction surface 23a of the actuating element 16 can be pressed against the stop surface 23b of the housing 21, preferably the half-shells 21a, 21b, whereby the self-locking of the actuating element 16 is improved.

The present invention was based on the furniture fitting 4 in the form of the furniture drive 4a for adjusting a force the spring device 8 on the actuating arm arrangement 6 explained. However, it is of course possible to use the described mounting of the actuating element 16 also with other types of furniture fittings 4 (for example drawer pull-out guides, furniture hinges, furniture dampers, etc.). It can be provided, for example, that a position of the furniture hinge or a movably mounted component of the furniture hinge can be adjusted by rotating the actuating element 16. Alternatively, it is possible for a position of the furniture damper and/or a damping stroke of the furniture damper and/or a damping performance of the furniture damper to be adjustable by rotating the actuating element 16.

Claims (15)

Furniture fitting (4), comprising: - a carrier (5) which has at least one essentially flat fastening surface (5a, 5b) for fastening to a furniture part (2a), - at least one control part (12) that can be moved relative to the carrier (5), - an adjusting device (9) for adjusting a position of the adjusting part (12) relative to the carrier (5), the adjusting device (9) having at least one actuating element (16) which can be rotated about an axis of rotation (18), the adjusting part (12) being through Exertion of a torque on the at least one actuating element (16) can be adjusted relative to the carrier (5), the axis of rotation (18) of the actuating element (16) having an angle (α) greater than 0° and less than 90° to the at least one fastening surface (5a, 5b) of the carrier (5), characterized in that the actuating element (16) is coupled to the actuating part (12) via an angularly movable coupling device (20), which preferably comprises a ball joint. Furniture fitting according to claim 1, characterized in that the axis of rotation (18) of the actuating element (16) forms an angle (α) greater than 5° and less than 80°, preferably an angle (α) greater than 10° and less than 50°, to at least one fastening surface (5a, 5b) of the carrier (5). Furniture fitting according to claim 1 or 2, characterized in that the actuating element (16) can be moved by the angularly movable coupling device (20) in such a way that the angle (α) which the axis of rotation (18) of the actuating element (16) and the fastening surface (5a , 5b) of the carrier (5) include each other, preferably continuously, adjustable. Furniture fitting according to one of claims 1 to 3, characterized in that the actuating element (16) has a tool holder (22) for actuating the actuating element (16) by means of a tool (17). Furniture fitting according to one of claims 1 to 4, characterized in that the actuating element (16) is connected to a shaft (24) which is positively mounted in a recess (25) with radial play. Furniture fitting according to one of claims 1 to 5, characterized in that the actuating element (16) has at least one friction surface (23a) via which the actuating element (16) is held in a self-locking manner in at least one relative position. Furniture fitting according to one of claims 1 to 6, characterized in that at least one stop (26a, 26b) is provided for limiting the angle of the actuating element (16). Furniture fitting according to one of claims 1 to 7, characterized in that a housing (21) is provided for supporting the actuating element (16) in certain areas. Furniture fitting according to one of claims 1 to 8, characterized in that at least one spring element (27) is provided, through which the actuating element (16) can be pressed against a stop surface (23b). Furniture fitting according to one of claims 1 to 9, characterized in that the furniture fitting (4) is designed as a furniture drive (4a) for moving a furniture part (3) which is movably mounted relative to a furniture body (2), the furniture fitting (4) having: - an actuating arm arrangement (6) arranged on the carrier (5) with at least one movably mounted actuating arm (6a, 6b, 6c) for moving the movable furniture part (3), - a spring device (8) for applying force to the actuating arm arrangement (6), the spring device (8) interacting with the actuating part (12), - an adjusting device (9) for adjusting a force of the spring device (8) on the adjusting arm arrangement (6), the adjusting device (9) having the actuating element (16) and at least one threaded section (19) for adjustable mounting of the adjusting part (12), wherein the adjusting part (12) can be moved along the threaded section (19) to adjust a force of the spring device (8) on the adjusting arm arrangement (6) by rotating the actuating element (16) about the axis of rotation (18). Furniture fitting according to claim 10, characterized in that the threaded section (19) has a longitudinal axis (L) which is aligned essentially parallel to the at least one fastening surface (5a, 5b) of the carrier (5). Furniture fitting according to claim 10 or 11, characterized in that the axis of rotation (18) of the actuating element (16) and a longitudinal axis (L) of the threaded section (19) run non-parallel to one another, it is preferably provided that the axis of rotation (18) of the Actuating element (16) and the longitudinal axis (L) of the threaded section (19) form an angle between 10° and 60° to one another. Furniture fitting according to one of claims 10 to 12, characterized in that the furniture fitting (4) has a transmission mechanism for transmitting a force from the spring device (8) to the actuating arm arrangement (6), the transmission mechanism having a control cam (10) and one of the Spring device (8) loaded pressure roller (11), the pressure roller (11) being movable along the control cam (10) when the actuating arm arrangement (6) moves. Furniture fitting according to one of claims 10 to 13, characterized in that the spring device (8) has at least one helical spring, preferably at least one compression spring, for applying force to the actuating arm arrangement (6). Furniture (1) with a furniture body (2), at least one furniture part (3) movable relative to the furniture body (2) and at least one furniture fitting (4) according to one of claims 1 to 14, wherein the carrier (5) of the furniture fitting (4) is attached to the furniture body (2) via the essentially flat fastening surface (5a, 5b).

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