EP3138444B1 - Device for opening and closing a movable furniture part - Google Patents

Device for opening and closing a movable furniture part Download PDF

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Publication number
EP3138444B1
EP3138444B1 EP16182726.6A EP16182726A EP3138444B1 EP 3138444 B1 EP3138444 B1 EP 3138444B1 EP 16182726 A EP16182726 A EP 16182726A EP 3138444 B1 EP3138444 B1 EP 3138444B1
Authority
EP
European Patent Office
Prior art keywords
joint
lever
furniture part
ejector
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP16182726.6A
Other languages
German (de)
French (fr)
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EP3138444A1 (en
Inventor
Markus Albrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grass GmbH
Original Assignee
Grass GmbH
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Filing date
Publication date
Application filed by Grass GmbH filed Critical Grass GmbH
Publication of EP3138444A1 publication Critical patent/EP3138444A1/en
Application granted granted Critical
Publication of EP3138444B1 publication Critical patent/EP3138444B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/16—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B46/00—Cabinets, racks or shelf units, having one or more surfaces adapted to be brought into position for use by extending or pivoting
    • A47B46/005—Cabinets, racks or shelf units, having one or more surfaces adapted to be brought into position for use by extending or pivoting by displacement in a vertical plane; by rotating about a horizontal axis
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/463—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-opening
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2210/00—General construction of drawers, guides and guide devices
    • A47B2210/0091—Drawer movement damping
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/218—Holders
    • E05Y2201/22—Locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/20—Brakes; Disengaging means, e.g. clutches; Holders, e.g. locks; Stops; Accessories therefore
    • E05Y2201/23—Actuation thereof
    • E05Y2201/244—Actuation thereof by manual operation
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/404—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function
    • E05Y2201/422—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening
    • E05Y2201/426—Motors; Magnets; Springs; Weights; Accessories therefore characterised by the function for opening for the initial opening movement
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/20—Application of doors, windows, wings or fittings thereof for furnitures, e.g. cabinets

Definitions

  • the invention relates to a device for opening and closing a movable furniture part, in particular a drawer, door or flap, with an ejector unit, which has at least one ejector element and a rechargeable energy storage device which is coupled to the ejector element via coupling means and which, when the movable furniture part is pushed in, by a predetermined amount or energy stored in the energy store can be provided as kinetic energy for ejecting the movable furniture part.
  • a device is for example from DE 20 2006 020 236 U1 known.
  • the device described there has an ejection unit, which in turn has a push-out element and a locking unit with at least one locking element.
  • the push-out element sits on the drawer rail and interacts with a stop arranged on the body rail.
  • the at least one locking element is screwed to the furniture body via an angle.
  • Another such device is, for example, from the DE 101 57 754 A1 known.
  • the movable furniture part In the case of movable furniture parts, for example drawers, which are equipped with an ejector unit, the movable furniture part is pressed in by a predeterminable or predetermined distance and then ejected by kinetic energy previously stored in an energy store. When the movable furniture part is then retracted, the energy storage device is recharged.
  • the object of the invention is to provide a device for opening and closing a movable furniture part which, with at least the same functionality, is more simply constructed than the ejection devices known from the prior art and can therefore be manufactured more cost-effectively.
  • the coupling means comprise a lever system with several levers articulated to one another via joints.
  • the lever system used makes it possible to adjust the energy, in particular the forces for ejecting and charging the energy storage device and thereby adapting it to the needs of the user. For example, it is possible to define the force that the user has to exert when retracting the movable furniture part to charge the energy storage device so that it is less than the force that he has to apply for the short ejection stroke. This is possible by choosing suitable lever lengths and lever arms around defined pivot points of the lever system. This allows significantly increase the comfort for the user.
  • the ejector unit has locking means which hold the ejector member in a locking position and which can be unlocked when the movable furniture part is pushed in by the predetermined or predetermined distance to initiate ejection.
  • the locking means are particularly preferably coupled to the ejector and the energy store via the lever system.
  • the lever system can thus transmit the actuating movement exerted on the ejector element both to the locking means and to the energy store.
  • the locking means have at least one locking element which is controllable via control means in such a way that when the movable furniture part is pushed in, it unlocks the ejector member via a forced guidance exercised by the control means.
  • the locking element is particularly preferably designed as a locking pawl mounted pivotably about a pivot axis.
  • the control means can have a guide track for forced guidance of the locking pawl.
  • the lever system is particularly preferably designed as a coupling gear, with a four- or seven-joint gear being preferably provided.
  • Four- or seven-link gears form statically determined kinematic chains with one degree of freedom, whereby a movement initiated on the kinematic chain inevitably leads to the movement of all joints or transmission links.
  • the lever system has a base lever which can be pivoted about a base joint that is stationary when the ejector member is tensioned or ejected and to which the energy store is articulated via a first joint and the ejector member is articulated via a second joint.
  • the pivotable base lever can be designed in the manner of a rocker, for example.
  • the levers of the lever system that is to say also the base lever, are levers made of flat material, for example of metal material.
  • the locking element is expediently articulated to the base lever via a third joint.
  • the distance between the base joint and the first joint is particularly preferably smaller than the distance between the base joint and the second joint.
  • the distance between the base joint and the third joint is greater than the distance between the base joint and the second joint.
  • the ejector prefferably be articulated on the base lever via a first connecting lever, the first connecting lever being articulated on the one hand to the base lever via the second joint and to the ejector via a fourth hinge.
  • the locking element in particular the locking pawl, is articulated on the base lever via a second connecting lever, the second connecting lever being articulated on the one hand on the third joint on the base lever and on the ejector member via a fifth joint.
  • the energy store is designed as a spring store equipped with at least one spring.
  • the spring accumulator is expediently designed as a spring assembly with several springs connected in parallel.
  • Such a spring accumulator has the advantage that it is inexpensive and easy to maintain.
  • the ejection force that acts on the movable furniture part when it is ejected can be varied by choosing different spring stiffnesses of the springs.
  • the at least one spring of the spring accumulator can be designed as a tension spring, for example, which can be tensioned when the movable furniture part is retracted via an actuating movement of the locking element and its coupling via the lever system.
  • the at least one spring is arranged on a spring carrier and is clamped there between a first and a second carrier parts which are arranged so as to be movable relative to one another.
  • the first carrier part is expediently arranged in an articulated manner on the base joint via the first joint.
  • an actuating member for actuating the ejector member is provided in such a way that pressing in the ejector member via the lever system results in unlocking of the locking element and from the Energy storage released stored energy can be guided to an ejection of the movable furniture part.
  • the actuating member has a driver element which can be brought into contact with the locking element when the movable furniture part is closed and which, while charging the energy store, preferably tensioning the at least one spring, transfers it into the locking position.
  • a mounting plate to be provided on which the energy store, the ejection element, the lever system and, if necessary, the locking element are arranged.
  • a mounting plate offers a subassembly that can be preassembled and can be easily assembled without the individual components having to be assembled individually in a possibly cramped space.
  • a damping device is provided for damping the movement of the movable furniture part into the closed position.
  • the invention also relates to a furniture part, in particular a drawer, characterized by a device according to one of Claims 1 to 18.
  • the invention further comprises a piece of furniture with a guide device for guiding a movable furniture part and at least one movable furniture part, characterized by a device according to one of Claims 1 to 18.
  • the mounting plate on the guide device or on the movable furniture part for example a drawer, and, corresponding to this, the actuator on the movable one Furniture part or are mounted on the guide device.
  • FIGS. 1 to 6 show a preferred embodiment of the device 11 according to the invention for opening and closing a movable furniture part 12 ( Fig. 2 ).
  • the device 11 is shown and described here by way of example when a movable furniture part 12 designed as a drawer is used. It is of course possible to use the device 11 on other movable furniture parts 12, for example on a door or on a flap.
  • the drawer is mounted displaceably relative to a furniture body (not shown) by means of a guide device (not shown).
  • the guide device comprises several guide units (not shown) which are arranged on opposite side edges of the drawer.
  • the guide units each have a cabinet rail 13 ( Fig. 2 ), which can be designed, for example, as a bent sheet metal component.
  • the carcass rail 13 is fixed in position by means of suitable fastening means on an associated side wall of a drawer receptacle formed in the furniture carcass.
  • a middle rail (not shown) is displaceably mounted on the body rail 13, on which in turn a pull-out rail (not shown) is guided displaceably by means of bearing means.
  • the pull-out rail which can also be referred to as a moving or running rail, is assigned to the drawer and extends below the bottom of the drawer in the depth direction.
  • the combination of cabinet rail 13, middle rail and pull-out rail is called full extension.
  • guide units without a central rail.
  • the device further comprises an ejector unit 14, which has at least one ejector member 15, via which the drawer can be pushed in a predetermined or predeterminable distance and then ejected.
  • the ejector element 15 is assigned a rechargeable energy store in the form of a spring store 16, which is coupled to the ejector element 15 in such a way that when the drawer is pushed in by the specified or specified distance in the energy store, energy stored in the energy store is made available as kinetic energy for ejecting the drawer .
  • the ejector unit 14 has locking means as a further main component, which hold the ejector element 15 in a locking position 17 and which can be unlocked when the movable furniture part is pushed in by the specified distance to initiate ejection.
  • the three main components of the ejection unit 14, the ejection element 15, the spring accumulator 16 and the locking means are mounted together on a mounting plate 18, which in turn is mounted on the drawer according to the preferred embodiment.
  • the three main components of the ejection unit 14, the ejection element 15, the spring accumulator 16 and the locking means are connected to one another via the coupling means.
  • the coupling means are designed as a lever system 19 which comprises a plurality of levers articulated to one another via joints.
  • the lever system 19 comprises a base lever 20, which is a flat lever, that is to say made of flat material, for example steel material, in particular sheet metal, which is mounted pivotably about a base joint 21 which is stationary with respect to the mounting plate 18.
  • the base hinge 21 is located in the area of one of the longitudinal sides 22a, 22b of the mounting plate.
  • the base lever 20 is functionally designed as a rocker arm and has more Joints for coupling the aforementioned three main components of the ejection unit 14.
  • the spring accumulator 16 in turn has a spring carrier 24, which in turn has two carrier parts 25a, 25b which are movable relative to one another and between which at least one spring 26, in the example several springs 26 connected in parallel, are clamped.
  • the springs 26 are designed as tension springs which are tensioned away from one another during the movement of the carrier parts 25a, 25b.
  • the first carrier part 25a is articulated on the base lever 20 via the first joint 23.
  • the second carrier part 25b is articulated on the mounting plate 18 via a further base joint 27, which is also stationary with respect to the mounting plate 18.
  • a third joint 29 is also provided on the base lever 20, which is arranged on the other end of the base lever 20, that is to say on the end of the base lever 20 which is opposite the end equipped with the base joint 21.
  • the distance between the base joint 21 and the third joint 29 is consequently greater than the distance between the first joint 23 and the base joint 21 and also greater than the distance between the second joint 28 and the base joint 21 created relatively large lever arm utilizing the total length of the base lever 20.
  • the connecting lever 30 which is also designed as a flat lever, is connected in an articulated manner to the base lever 20 via the second joint 28 and is connected to the ejector element 15 via a fourth joint 31.
  • the ejector element 15 is designed as a plunger which is guided so as to be linearly movable in a guide slot 32 designed in the longitudinal direction of the furniture panel 18 in the furniture panel 18.
  • the plunger-like ejector member 15 is therefore between the in Figure 1 locking position 17 shown and one in Figure 3 Ejection position 33 shown guided linearly movable.
  • the locking means comprise a locking element in the form of a locking pawl 34.
  • the locking pawl 34 is connected to the base lever 20 via a further connecting lever 35.
  • the further connecting lever 35 is also expediently designed as a flat lever.
  • the further connecting lever 35 is hinged on the one hand around the third joint 29 on the base lever 20 and on the other hand is articulated on the locking pawl 34 via a fifth joint 36.
  • the locking pawl 34 is assigned control means which, in the example, have a guide track 37 for positively guiding the locking pawl 34.
  • the guide track 37 which is expediently designed as a guide slot in the furniture board 18, extends in the longitudinal direction of the furniture board 18.
  • the locking pawl 34 has a guide pin (not shown) on its underside which dips into the guide track 37 and is positively guided there.
  • the locking pawl 34 also has a nose-like projection 38 which projects beyond the longitudinal edge of the furniture panel 18.
  • the link-like guide track 37 has a substantially parallel to Guide area 39 extending along the longitudinal edge of the furniture panel 18, to which functional areas are connected at each end.
  • One of these functional areas is designed as a locking groove 40, which runs obliquely to the guide area 39 of the guide track 37, namely increasing in the direction of the longitudinal edge of the furniture panel 18.
  • the guide pin In the locking position 17 of the locking pawl 34, the guide pin is positioned at the lowest point of the locking groove 40.
  • the device 11 further comprises an actuating member 41 which, in the example, is fastened to the carcass rail 13.
  • the actuating member 41 has an L-like configuration in longitudinal section, with a short transverse leg 42 which is assigned to the ejector member 15 and, in the closed position of the drawer, is in contact with an impact section of the ejector member 15.
  • a longitudinal leg 43 is provided which runs essentially parallel to the longitudinal edge of the furniture panel 18 and has a driver element 44 at its free end, which cooperates with the projection 38 on the locking pawl 34 in a manner which will be explained in more detail below.
  • the drawer and the attached furniture panel 18 with the ejector unit 14 are initially in the closed position.
  • the transverse leg 42 of the actuating member 41 is in contact with an actuating section of the ejector member 15.
  • the user now pushes the drawer in the closed position a predetermined and preset distance.
  • the distance between the transverse side of the furniture panel 18 and the transverse leg 42 of the actuating element 41 is reduced and the plunger-like ejector element 15 is moved further into the guide slot 32.
  • This actuation movement is via the fourth joint and the connecting lever 30 and the third Transfer joint 29 to the base lever 20, which is pivoted counterclockwise about the base joint 21.
  • the tension springs are tensioned and the locking pawl 34 is located with its driving pin in the locking groove 40.
  • the base lever 20 is now pivoted counterclockwise about the base joint 21, the third joint 29, which is also located on the base lever 20 is located, pivoted with.
  • the driver pin in the locking position is positively displaced obliquely outwards in the locking groove 40, whereby the locking is canceled.
  • the tension springs become effective, the spring force of which tends to shorten the distance between the two carrier parts 25a, 25b.
  • the spring force of the tension springs cause the base lever 20 to pivot in a clockwise direction about the base joint 21.
  • the ejector 15 is pushed out of the guide slot 32 via the coupling by means of the connecting lever 30, whereby the furniture panel 18 and the coupled drawer are pushed away from the actuating element 41 and the drawer is ejected.
  • the locking pawl 34 is guided on the straight guide area 39.
  • the projection 38 of the locking pawl 34 is moved past the stationary driver element 44.
  • the driver element 44 presses the locking pawl 34 with the projection 38 to the side, in which the locking pawl 34 is pivoted in a clockwise direction about the fifth joint 36.
  • a spring (not shown) ensures that the locking pawl 34 with the projection 38 after passing the Driver element 44 pivots back into its original position.
  • the projection 38 then meets the driver element 44 again, as will be described below.
  • the ejector 15 is ejected until the tension springs are relaxed. The drawer can then be extended further, detached from the actuating member 41.
  • FIGS. 5 and 6 show the retraction of the drawer into the closed position.
  • the projection 38 on the locking pawl 34 comes into contact with the stationary driver element 44 on the actuating member 41, whereby the locking pawl 34 is moved linearly in the guide area 39 in the direction of its locking position 17.
  • This retraction movement causes the base lever 20 to pivot about the base joint 21 in a counterclockwise direction.
  • the distance between the two support parts 25a, 25b of the spring accumulator 16 is increased and the tension springs are tensioned.
  • the distance between the first joint 23, at which the spring accumulator 16 is attached to the base lever 20 is coupled, to the base joint 21 is smaller than the distance between the second joint 28, to which the ejector 15 is coupled, to the base joint 21.
  • the largest is the distance between the third joint 29, to which the locking pawl 34 is coupled and the Base joint 21.
  • the relatively large tensile force of the tension springs acts on the base lever 20 by means of a small lever arm.
  • the lever arm between the ejection element 15 and the base joint 21 is larger, so that the tensile force of the springs translates into a slightly smaller force for ejection becomes.
  • a great advantage is the large lever arm between the third joint 29 and the base joint 21, as a result of which the tension springs can be tensioned with a relatively small force during retraction due to the large lever arm. The effort for the user to tension the tension springs is thus minimized. Nevertheless, the tension springs make a greater force available during ejection, which force is then released via the ejection element 15 and ensures that the drawer is ejected.

Description

Die Erfindung betrifft eine Vorrichtung zum Öffnen und Schließen eines bewegbaren Möbelteils, insbesondere Schublade, Tür oder Klappe, mit einer Ausstoßeinheit, die wenigstens ein Ausstoßorgan und einen mit dem Ausstoßorgan über Kopplungsmittel derart gekoppelten wiederaufladbaren Energiespeicher aufweist, das beim Eindrücken des bewegbaren Möbelteils um eine vorgegebene oder vorgebbare Wegstrecke im Energiespeicher gespeicherte Energie als kinetische Energie zum Ausstoßen des bewegbaren Möbelteils zur Verfügung stellbar ist. Eine derartige Vorrichtung ist beispielsweise aus der DE 20 2006 020 236 U1 bekannt. Die dort beschriebene Vorrichtung besitzt eine Ausstoßeinheit, die ihrerseits ein Ausschub-Element und eine Verriegelungseinheit mit wenigstens einem Verriegelungselement besitzt. Das Ausschub-Element sitzt an der Schubladenschiene und wirkt mit einem an der Korpusschiene angeordneten Anschlag zusammen. Das wenigstens eine Verriegelungselement ist dabei über einen Winkel am Möbelkorpus angeschraubt Eine weitere derartige Vorrichtung ist beispielsweise aus der DE 101 57 754 A1 bekannt.The invention relates to a device for opening and closing a movable furniture part, in particular a drawer, door or flap, with an ejector unit, which has at least one ejector element and a rechargeable energy storage device which is coupled to the ejector element via coupling means and which, when the movable furniture part is pushed in, by a predetermined amount or energy stored in the energy store can be provided as kinetic energy for ejecting the movable furniture part. Such a device is for example from DE 20 2006 020 236 U1 known. The device described there has an ejection unit, which in turn has a push-out element and a locking unit with at least one locking element. The push-out element sits on the drawer rail and interacts with a stop arranged on the body rail. The at least one locking element is screwed to the furniture body via an angle. Another such device is, for example, from the DE 101 57 754 A1 known.

Es ist ferner bekannt, bewegbare Möbelteile, beispielsweise Schubladen mit einer sogenannten Einzugsautomatik auszustatten, wodurch das bewegbare Möbelteil selbsttätig und gedämpft in die Schließstellung einfährt.It is also known to equip movable furniture parts, for example drawers, with a so-called automatic retraction system, as a result of which the movable furniture part moves automatically and attenuated into the closed position.

Bei bewegbaren Möbelteilen, beispielsweise Schubladen, die mit einer Ausstoßeinheit ausgestattet sind, wird das bewegbare Möbelteil um eine vorgebbare oder vorgegebene Wegstrecke eingedrückt und anschließend durch zuvor in einem Energiespeicher gespeicherte kinetischen Energie ausgestoßen. Beim anschließenden Einfahren des bewegbaren Möbelteils wird der Energiespeicher wieder aufgeladen.In the case of movable furniture parts, for example drawers, which are equipped with an ejector unit, the movable furniture part is pressed in by a predeterminable or predetermined distance and then ejected by kinetic energy previously stored in an energy store. When the movable furniture part is then retracted, the energy storage device is recharged.

Aufgabe der Erfindung ist es, eine Vorrichtung zum Öffnen und Schließen eines bewegbaren Möbelteils bereitzustellen, die bei mindestens gleicher Funktionalität gegenüber aus dem Stand der Technik bekannten Ausstoßvorrichtungen einfacher aufgebaut und daher kostengünstiger herstellbar ist.The object of the invention is to provide a device for opening and closing a movable furniture part which, with at least the same functionality, is more simply constructed than the ejection devices known from the prior art and can therefore be manufactured more cost-effectively.

Diese Aufgabe wird durch eine Vorrichtung mit den Merkmalen des unabhängigen Anspruchs 1 gelöst. Weiterbildungen der Erfindung sind in den Unteransprüchen dargestellt.This object is achieved by a device with the features of independent claim 1. Further developments of the invention are presented in the subclaims.

Erfindungsgemäß umfassen die Kopplungsmittel ein Hebelsystem mit mehreren über Gelenke gelenkig miteinander verbundenen Hebeln Durch das eingesetzte Hebelsystem ist es möglich, die Energie, insbesondere die Kräfte zum Ausstoßen und Aufladen des Energiespeichers einzustellen und dadurch an den Bedarf des Benutzers anzupassen. Beispielsweise ist es möglich, die Kraft, die beim Einfahren des bewegbaren Möbelteils zum Aufladen des Energiespeichers durch den Benutzer ausgeübt werden muss so zu definieren, dass sie geringer ist als die Kraft, die er für den kurzen Ausstoßhub aufwenden muss. Dies ist möglich durch die Wahl geeigneter Hebellängen und Hebelarme um definierte Drehpunkte des Hebelsystems. Dadurch lässt sich der Komfort für den Benutzer deutlicher erhöhen.According to the invention, the coupling means comprise a lever system with several levers articulated to one another via joints. The lever system used makes it possible to adjust the energy, in particular the forces for ejecting and charging the energy storage device and thereby adapting it to the needs of the user. For example, it is possible to define the force that the user has to exert when retracting the movable furniture part to charge the energy storage device so that it is less than the force that he has to apply for the short ejection stroke. This is possible by choosing suitable lever lengths and lever arms around defined pivot points of the lever system. This allows significantly increase the comfort for the user.

Bei einer Weiterbildung der Erfindung weist die Ausstoßeinheit Verriegelungsmittel auf, die das Ausstoßorgan in einer Verriegelungsstellung halten und die beim Eindrücken des bewegbaren Möbelteils um die vorgegebene bzw. vorgebbare Wegstrecke zum Einleiten des Ausstoßens entriegelbar sind.In a further development of the invention, the ejector unit has locking means which hold the ejector member in a locking position and which can be unlocked when the movable furniture part is pushed in by the predetermined or predetermined distance to initiate ejection.

Besonders bevorzugt sind die Verriegelungsmittel über das Hebelsystem mit dem Ausstoßorgan und dem Energiespeicher gekoppelt. Das Hebelsystem kann somit die auf das Ausstoßorgan ausgeübte Betätigungsbewegung sowohl auf die Verriegelungsmittel als auch auf den Energiespeicher übertragen. Durch die Wahl geeigneter Hebellängen der Hebel des Hebelsystems lassen sich die auf die Verriegelungsmittel und den Energiespeicher übertragene Kräfte variieren.The locking means are particularly preferably coupled to the ejector and the energy store via the lever system. The lever system can thus transmit the actuating movement exerted on the ejector element both to the locking means and to the energy store. By choosing suitable lever lengths of the lever of the lever system, the forces transmitted to the locking means and the energy store can be varied.

Bei einer Weiterbildung der Erfindung weisen die Verriegelungsmittel wenigstens ein Verriegelungselement auf, das über Steuermittel derart steuerbar ist, dass es beim Eindrücken des bewegbaren Möbelteils über eine mittels der Steuermittel ausgeübten Zwangsführung das Ausstoßorgan entriegelt.In a further development of the invention, the locking means have at least one locking element which is controllable via control means in such a way that when the movable furniture part is pushed in, it unlocks the ejector member via a forced guidance exercised by the control means.

Besonders bevorzugt ist das Verriegelungselement als um eine Schwenkachse schwenkbar gelagerte Verriegelungsklinke ausgebildet. Die Steuermittel können eine Führungsbahn zur Zwangsführung der Verriegelungsklinke aufweisen.The locking element is particularly preferably designed as a locking pawl mounted pivotably about a pivot axis. The control means can have a guide track for forced guidance of the locking pawl.

Besonders bevorzugt ist das Hebelsystem als Koppelgetriebe ausgebildet, wobei bevorzugt ein Vier- oder Sieben-Gelenk-Getriebe vorgesehen ist. Vier- oder Sieben-Gelenk-Getriebe bilden statisch bestimmte kinematische Ketten mit einem Freiheitsgrad, wodurch eine auf die kinematische Kette eingeleitete Bewegung zwangsläufig zur Bewegung aller Gelenke bzw. Getriebeglieder führt.The lever system is particularly preferably designed as a coupling gear, with a four- or seven-joint gear being preferably provided. Four- or seven-link gears form statically determined kinematic chains with one degree of freedom, whereby a movement initiated on the kinematic chain inevitably leads to the movement of all joints or transmission links.

Erfindungsgemäß weist das Hebelsystem einen um ein beim Spannen oder Ausstoßen des Ausstoßorgans ortsfestes Basisgelenk schwenkbaren Basishebel auf, an dem über ein erstes Gelenk der Energiespeicher und über ein zweites Gelenk das Ausstoßorgan angelenkt ist. Der schwenkbare Basishebel kann beispielsweise nach Art einer Schwinge ausgebildet sein. Zweckmäßigerweise handelt es sich bei den Hebeln des Hebelsystems, also auch bei dem Basishebel, um aus Flachmaterial, beispielsweise aus Metallmaterial, bestehende Hebel.According to the invention, the lever system has a base lever which can be pivoted about a base joint that is stationary when the ejector member is tensioned or ejected and to which the energy store is articulated via a first joint and the ejector member is articulated via a second joint. The pivotable base lever can be designed in the manner of a rocker, for example. Expediently, the levers of the lever system, that is to say also the base lever, are levers made of flat material, for example of metal material.

Zweckmäßigerweise ist das Verriegelungselement über ein drittes Gelenk an den Basishebel angelenkt.The locking element is expediently articulated to the base lever via a third joint.

Besonders bevorzugt ist der Abstand zwischen dem Basisgelenk und dem ersten Gelenk kleiner als der Abstand zwischen dem Basisgelenk und dem zweiten Gelenk.The distance between the base joint and the first joint is particularly preferably smaller than the distance between the base joint and the second joint.

Bei einer Weiterbildung der Erfindung ist der Abstand zwischen dem Basisgelenk und dem dritten Gelenk größer als der Abstand zwischen dem Basisgelenk und dem zweiten Gelenk.In a further development of the invention, the distance between the base joint and the third joint is greater than the distance between the base joint and the second joint.

Es ist möglich, dass das Ausstoßorgan über einen ersten Verbindungshebel gelenkig am Basishebel angelenkt ist, wobei der erste Verbindungshebel einerseits über das zweite Gelenk gelenkig am Basishebel und über ein viertes Gelenk gelenkig am Ausstoßorgan angelenkt ist.It is possible for the ejector to be articulated on the base lever via a first connecting lever, the first connecting lever being articulated on the one hand to the base lever via the second joint and to the ejector via a fourth hinge.

Ferner ist es möglich, dass das Verriegelungselement, insbesondere die Verriegelungsklinke, über einen zweiten Verbindungshebel gelenkig am Basishebel angeordnet ist, wobei der zweite Verbindungshebel einerseits über das dritte Gelenk gelenkig am Basishebel und über ein fünftes Gelenk gelenkig am Ausstoßorgan angelenkt ist.Furthermore, it is possible that the locking element, in particular the locking pawl, is articulated on the base lever via a second connecting lever, the second connecting lever being articulated on the one hand on the third joint on the base lever and on the ejector member via a fifth joint.

In besonders bevorzugter Weise ist der Energiespeicher als mit wenigstens einer Feder ausgestatteter Federspeicher ausgebildet. Zweckmäßigerweise ist der Federspeicher als Federpaket mit mehreren parallel geschalteten Federn ausgebildet. Ein derartiger Federspeicher hat den Vorteil, dass er kostengünstig und wartungsfreundlich. Ferner lässt sich die Ausstoßkraft die beim Ausstoßen auf das bewegbare Möbelteil wirkt durch die Wahl unterschiedlicher Federsteifigkeiten der Federn variieren. Die wenigstens eine Feder des Federspeichers kann beispielsweise als Zugfeder ausgebildet sein, die beim Einfahren des bewegbaren Möbelteils über eine Betätigungsbewegung des Verriegelungselements und dessen Ankopplung über das Hebelsystem gespannt werden kann.In a particularly preferred manner, the energy store is designed as a spring store equipped with at least one spring. The spring accumulator is expediently designed as a spring assembly with several springs connected in parallel. Such a spring accumulator has the advantage that it is inexpensive and easy to maintain. Furthermore, the ejection force that acts on the movable furniture part when it is ejected can be varied by choosing different spring stiffnesses of the springs. The at least one spring of the spring accumulator can be designed as a tension spring, for example, which can be tensioned when the movable furniture part is retracted via an actuating movement of the locking element and its coupling via the lever system.

Prinzipiell wären jedoch auch andere Arten von Energiespeicher einsetzbar. Beispielsweise wäre es denkbar, die beim Einfahren des bewegbaren Möbelteils vorhandene kinematische Energie in elektrische Energie umzuwandeln und als solche zu speichern, wobei dann beim Ausstoßvorgang die elektrische Energie wieder in die kinetische Energie umgesetzt werden könnte.In principle, however, other types of energy storage could also be used. For example, it would be conceivable to convert the kinematic energy present when the movable furniture part is retracted into electrical energy and to store it as such, the electrical energy then being able to be converted back into kinetic energy during the ejection process.

Bei einer Weiterbildung der Erfindung ist die wenigstens eine Feder an einem Federträger angeordnet und ist dort zwischen einem ersten und einem zweiten zueinander relativ beweglich angeordneten Trägerteilen eingespannt. Zweckmäßigerweise ist das erste Trägerteil über das erste Gelenk gelenkig am Basisgelenk angeordnet.In a further development of the invention, the at least one spring is arranged on a spring carrier and is clamped there between a first and a second carrier parts which are arranged so as to be movable relative to one another. The first carrier part is expediently arranged in an articulated manner on the base joint via the first joint.

Bei einer Weiterbildung der Erfindung ist ein Betätigungsorgan zum Betätigen des Ausstoßorgans vorgesehen, derart, dass ein Eindrücken des Ausstoßorgans über das Hebelsystem in ein Entriegeln des Verriegelungselements und über die aus dem Energiespeicher freiwerdende gespeicherte Energie zu einem Ausstoßen des bewegbaren Möbelteils führbar ist.In a further development of the invention, an actuating member for actuating the ejector member is provided in such a way that pressing in the ejector member via the lever system results in unlocking of the locking element and from the Energy storage released stored energy can be guided to an ejection of the movable furniture part.

Besonders bevorzugt weist das Betätigungsorgan ein Mitnehmerelement auf, das beim Schließen des bewegbaren Möbelteils in Kontakt mit dem Verriegelungselement bringbar ist und dieses unter Aufladung des Energiespeichers vorzugsweise Spannen der wenigstens eine Feder, in die Verriegelungsstellung überführt.Particularly preferably, the actuating member has a driver element which can be brought into contact with the locking element when the movable furniture part is closed and which, while charging the energy store, preferably tensioning the at least one spring, transfers it into the locking position.

Es ist möglich, dass eine Montageplatte vorgesehen ist, an der der Energiespeicher, das Ausstoßorgan, das Hebelsystem und gegebenenfalls das Verriegelungselement angeordnet sind. Eine solche Montageplatte bietet eine vormontierbare Baugruppe, die einfach montiert werden kann, ohne dass dabei in gegebenenfalls beengten Platzverhältnissen die einzelnen Komponenten jede für sich montiert werden müssen.It is possible for a mounting plate to be provided on which the energy store, the ejection element, the lever system and, if necessary, the locking element are arranged. Such a mounting plate offers a subassembly that can be preassembled and can be easily assembled without the individual components having to be assembled individually in a possibly cramped space.

Bei einer Weiterbildung der Erfindung ist eine Dämpfungseinrichtung zur Dämpfung der Einfahrbewegung des bewegbaren Möbelteils in die Schließstellung vorgesehen.In a further development of the invention, a damping device is provided for damping the movement of the movable furniture part into the closed position.

Die Erfindung betrifft ferner ein Möbelteil, insbesondere Schublade, gekennzeichnet durch eine Vorrichtung nach einem der Ansprüche 1 bis 18.The invention also relates to a furniture part, in particular a drawer, characterized by a device according to one of Claims 1 to 18.

Ferner umfasst die Erfindung ein Möbel, mit einer Führungseinrichtung zur Führung eines bewegbaren Möbelteils und wenigstens einen bewegbaren Möbelteil, gekennzeichnet durch eine Vorrichtung nach einem der Ansprüche 1 bis 18.The invention further comprises a piece of furniture with a guide device for guiding a movable furniture part and at least one movable furniture part, characterized by a device according to one of Claims 1 to 18.

Es ist möglich, dass die Montageplatte an der Führungseinrichtung oder am bewegbaren Möbelteil, beispielsweise Schublade, und korrespondierend hierzu das Betätigungsorgan am bewegbaren Möbelteil oder an der Führungseinrichtung montiert sind.It is possible that the mounting plate on the guide device or on the movable furniture part, for example a drawer, and, corresponding to this, the actuator on the movable one Furniture part or are mounted on the guide device.

Ein bevorzugtes Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im Folgenden näher erläutert. In der Zeichnung zeigen:

Figur 1
eine Draufsicht auf ein bevorzugtes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung zum Öffnen und Schließen eines bewegbaren Möbelteils, wobei sich das Möbelteil in der Schließstellung befindet,
Figur 2
eine Draufsicht auf die Vorrichtung von Figur 1, nach dem Ausstoßen des bewegbaren Möbelteils aus der Schließstellung,
Figur 3
eine Draufsicht auf die Vorrichtung von Figur 1, wobei das bewegbare Möbelteil noch weiter ausgefahren ist,
Figur 4
eine Draufsicht auf die Vorrichtung von Figur 1, bei der das Betätigungsorgan und die Montageplatte mit den verschiedenen Komponenten entkoppelt sind und das bewegbare Möbelteil frei bewegbar ist,
Figur 5
eine Draufsicht auf die Vorrichtung von Figur 1 beim Einfahren des bewegbaren Möbelteils, wobei das Verriegelungselement in Kontakt mit dem Betätigungsorgan kommt und
Figur 6
eine Draufsicht auf die Vorrichtung von Figur 1, bei dem das bewegbare Möbelteil noch weiter eingefahren ist, wobei der Federspeicher gespannt wird.
A preferred embodiment of the invention is shown in the drawing and is explained in more detail below. In the drawing show:
Figure 1
a plan view of a preferred embodiment of the device according to the invention for opening and closing a movable furniture part, wherein the furniture part is in the closed position,
Figure 2
a plan view of the device of Figure 1 , after ejecting the movable furniture part from the closed position,
Figure 3
a plan view of the device of Figure 1 , whereby the movable furniture part is extended even further,
Figure 4
a plan view of the device of Figure 1 , in which the actuator and the mounting plate are decoupled from the various components and the movable furniture part can be moved freely,
Figure 5
a plan view of the device of Figure 1 when the movable furniture part is retracted, the locking element coming into contact with the actuating member and
Figure 6
a plan view of the device of Figure 1 , in which the movable furniture part is retracted even further, the spring accumulator being tensioned.

Die Figuren 1 bis 6 zeigen ein bevorzugtes Ausführungsbeispiel der erfindungsgemäßen Vorrichtung 11 zum Öffnen und Schließen eines bewegbaren Möbelteils 12 (Fig.2). Die Vorrichtung 11 ist hier beispielhaft beim Einsatz eines als Schublade ausgebildeten bewegbaren Möbelteils 12 gezeigt und beschrieben. Es ist selbstverständlich möglich, die Vorrichtung 11 auch an anderen bewegbaren Möbelteilen 12, beispielsweise an einer Tür oder an einer Klappe einzusetzen.The Figures 1 to 6 show a preferred embodiment of the device 11 according to the invention for opening and closing a movable furniture part 12 ( Fig. 2 ). The device 11 is shown and described here by way of example when a movable furniture part 12 designed as a drawer is used. It is of course possible to use the device 11 on other movable furniture parts 12, for example on a door or on a flap.

Die Schublade ist mittels einer Führungseinrichtung (nicht dargestellt) relativ zu einem Möbelkorpus (nicht dargestellt) verschieblich gelagert. Die Führungseinrichtung umfasst mehrere Führungseinheiten (nicht dargestellt), die an einander entgegengesetzt liegenden Seitenrändern der Schublade angeordnet sind. Die Führungseinheiten besitzen jeweils eine Korpusschiene 13 (Fig.2), die beispielsweise als umgebogenes Blechbauteil ausgestaltet sein kann. Die Korpusschiene 13 ist über geeignete Befestigungsmittel an einer zugeordneten Seitenwand einer im Möbelkorpus ausgebildeten Schubladenaufnahme positionsfest befestigt. An der Korpusschiene 13 ist eine Mittelschiene (nicht dargestellt) verschieblich gelagert, an der wiederum eine Auszugsschiene (nicht dargestellt) mittels Lagermitteln verschieblich geführt ist. Die Auszugsschiene, die auch als Bewegungs- oder Laufschiene bezeichnet werden kann, ist der Schublade zugeordnet und verläuft unterhalb des Schubladen-Bodens in Tiefenrichtung. Die Kombination aus Korpusschiene 13, Mittelschiene und Auszugsschiene wird Vollauszug genannt. Es ist jedoch auch denkbar, Führungseinheiten ohne Mittelschiene zu verwenden.The drawer is mounted displaceably relative to a furniture body (not shown) by means of a guide device (not shown). The guide device comprises several guide units (not shown) which are arranged on opposite side edges of the drawer. The guide units each have a cabinet rail 13 ( Fig. 2 ), which can be designed, for example, as a bent sheet metal component. The carcass rail 13 is fixed in position by means of suitable fastening means on an associated side wall of a drawer receptacle formed in the furniture carcass. A middle rail (not shown) is displaceably mounted on the body rail 13, on which in turn a pull-out rail (not shown) is guided displaceably by means of bearing means. The pull-out rail, which can also be referred to as a moving or running rail, is assigned to the drawer and extends below the bottom of the drawer in the depth direction. The combination of cabinet rail 13, middle rail and pull-out rail is called full extension. However, it is also conceivable to use guide units without a central rail.

Die Vorrichtung umfasst ferner eine Ausstoßeinheit 14, die wenigstens ein Ausstoßorgan 15 aufweist, über das die Schublade eine vorgegebene oder vorgebbare Wegstrecke eindrückbar und anschließend ausstoßbar ist.The device further comprises an ejector unit 14, which has at least one ejector member 15, via which the drawer can be pushed in a predetermined or predeterminable distance and then ejected.

Dem Ausstoßorgan 15 ist ein wieder aufladbarer Energiespeicher in Form eines Federspeichers 16 zugeordnet, der mit dem Ausstoßorgan 15 derart gekoppelt ist, dass beim Eindrücken der Schublade um die vorgegebene oder vorgebbare Wegstrecke im Energiespeicher gespeicherte Energie als kinetische Energie zum Ausstoßen der Schublade zur Verfügung gestellt wird.The ejector element 15 is assigned a rechargeable energy store in the form of a spring store 16, which is coupled to the ejector element 15 in such a way that when the drawer is pushed in by the specified or specified distance in the energy store, energy stored in the energy store is made available as kinetic energy for ejecting the drawer .

Neben dem Ausstoßorgan 15 weist die Ausstoßeinheit 14 als weitere Hauptkomponente Verriegelungsmittel auf, die das Ausstoßorgan 15 in einer Verriegelungsstellung 17 halten und die beim Eindrücken des bewegbaren Möbelteils um die vorgegebene Wegstrecke zum Einleiten des Ausstoßens entriegelbar sind.In addition to the ejector element 15, the ejector unit 14 has locking means as a further main component, which hold the ejector element 15 in a locking position 17 and which can be unlocked when the movable furniture part is pushed in by the specified distance to initiate ejection.

Wie insbesondere in Figur 1 dargestellt, sind die drei Hauptkomponenten der Ausstoßeinheit 14, das Ausstoßorgan 15, der Federspeicher 16 und die Verriegelungsmittel gemeinsam an einer Montageplatte 18 montiert, die wiederum gemäß bevorzugtem Ausführungsbeispiel an der Schublade montiert ist.As in particular in Figure 1 shown, the three main components of the ejection unit 14, the ejection element 15, the spring accumulator 16 and the locking means are mounted together on a mounting plate 18, which in turn is mounted on the drawer according to the preferred embodiment.

Wie ebenfalls insbesondere in Figur 1 dargestellt, sind die drei Hauptkomponenten der Ausstoßeinheit 14, das Ausstoßorgan 15, der Federspeicher 16 und die Verriegelungsmittel über die Kopplungsmittel miteinander verbunden. Die Kopplungsmittel sind als Hebelsystem 19 ausgebildet, das mehrere über Gelenke gelenkig miteinander verbundene Hebel umfasst.As also especially in Figure 1 shown, the three main components of the ejection unit 14, the ejection element 15, the spring accumulator 16 and the locking means are connected to one another via the coupling means. The coupling means are designed as a lever system 19 which comprises a plurality of levers articulated to one another via joints.

Das Hebelsystem 19 umfasst einen als Flachhebel, d.h. aus Flachmaterial, beispielsweise aus Stahlmaterial, insbesondere Blech, bestehenden Basishebel 20, der um ein bezüglich der Montageplatte 18 ortsfestes Basisgelenk 21 schwenkbar gelagert ist. Das Basisgelenkt 21 befindet sich im Bereich einer der Längsseiten 22a, 22b der Montageplatte. Der Basishebel 20 ist funktionell als Schwinge ausgebildet und weist weitere Gelenke zur Ankopplung der vorerwähnten drei Hauptkomponenten der Ausstoßeinheit 14 auf.The lever system 19 comprises a base lever 20, which is a flat lever, that is to say made of flat material, for example steel material, in particular sheet metal, which is mounted pivotably about a base joint 21 which is stationary with respect to the mounting plate 18. The base hinge 21 is located in the area of one of the longitudinal sides 22a, 22b of the mounting plate. The base lever 20 is functionally designed as a rocker arm and has more Joints for coupling the aforementioned three main components of the ejection unit 14.

Es ist zunächst ein erstes Gelenk 23 in kurzem Abstand vom Basisgelenk 21 zu nennen, an dem der Federspeicher 16 angelenkt ist.First of all, there is a first joint 23 at a short distance from the base joint 21, to which the spring accumulator 16 is hinged.

Der Federspeicher 16 wiederum weist einen Federträger 24 auf, der wiederum zwei relativ zueinander bewegliche Trägerteile 25a, 25b besitzt, zwischen denen wenigstens eine Feder 26, im Beispielsfall mehrere parallel geschaltete Federn 26 eingespannt sind. Die Federn 26 sind als Zugfedern ausgestaltet, die bei der Bewegung der Trägerteile 25a, 25b voneinander weg gespannt werden. Das erste Trägerteil 25a ist über das erste Gelenk 23 gelenkig am Basishebel 20 gelagert. Das zweite Trägerteil 25b hingegen ist über ein weiteres Basisgelenk 27, das ebenfalls bezüglich der Montageplatte 18 ortsfest ist, gelenkig an der Montageplatte 18 gelagert.The spring accumulator 16 in turn has a spring carrier 24, which in turn has two carrier parts 25a, 25b which are movable relative to one another and between which at least one spring 26, in the example several springs 26 connected in parallel, are clamped. The springs 26 are designed as tension springs which are tensioned away from one another during the movement of the carrier parts 25a, 25b. The first carrier part 25a is articulated on the base lever 20 via the first joint 23. The second carrier part 25b, on the other hand, is articulated on the mounting plate 18 via a further base joint 27, which is also stationary with respect to the mounting plate 18.

Am Basishebel 20 befindet sich ein zweites Gelenk 28, dessen Abstand zum Basisgelenk 21 größer ist als der Abstand zwischen dem ersten Gelenk 23 und dem Basisgelenk 21. An dem zweiten Gelenk 28 ist das Ausstoßorgan 15 gelenkig gelagert.On the base lever 20 there is a second joint 28 whose distance from the base joint 21 is greater than the distance between the first joint 23 and the base joint 21. The ejector element 15 is articulated on the second joint 28.

Schließlich ist am Basishebel 20 noch ein drittes Gelenk 29 vorgesehen, das am anderen, also an dem mit dem Basisgelenk 21 ausgestatteten Ende gegenüberliegendem Ende des Basishebels 20 angeordnet ist. Der Abstand zwischen dem Basisgelenk 21 und dem dritten Gelenk 29 ist folglich größer als der Abstand des ersten Gelenks 23 zum Basisgelenk 21 und auch größer als der Abstand des zweiten Gelenks 28 zum Basisgelenk 21. Somit wird zwischen dem dritten Gelenk 29 und dem Basisgelenk 21 ein relativ großer, die Gesamtlänge des Basishebels 20 ausnutzender Hebelarm geschaffen.Finally, a third joint 29 is also provided on the base lever 20, which is arranged on the other end of the base lever 20, that is to say on the end of the base lever 20 which is opposite the end equipped with the base joint 21. The distance between the base joint 21 and the third joint 29 is consequently greater than the distance between the first joint 23 and the base joint 21 and also greater than the distance between the second joint 28 and the base joint 21 created relatively large lever arm utilizing the total length of the base lever 20.

Zurückkommend auf das Ausstoßorgan 15, ist dieses, wie insbesondere in Figur 1 gezeigt, über einen Verbindungshebel 30 mit dem Basishebel 20 verbunden. Der Verbindungshebel 30, der ebenfalls als Flachhebel ausgebildet ist, ist über das zweite Gelenk 28 gelenkig am Basishebel 20 verbunden und über ein viertes Gelenk 31 mit dem Ausstoßorgan 15 verbunden. Das Ausstoßorgan 15 ist als Stößel ausgebildet, der in einem in Längsrichtung der Möbelplatte 18 in der Möbelplatte 18 ausgebildeten Führungsschlitz 32 linear beweglich geführt ist. Das stößelartige Ausstoßorgan 15 ist daher zwischen der in Figur 1 gezeigten Verriegelungsstellung 17 und einer in Figur 3 gezeigten Ausstoßstellung 33 linear beweglich geführt.Coming back to the ejection member 15, this is, as in particular in FIG Figure 1 shown, connected to the base lever 20 via a connecting lever 30. The connecting lever 30, which is also designed as a flat lever, is connected in an articulated manner to the base lever 20 via the second joint 28 and is connected to the ejector element 15 via a fourth joint 31. The ejector element 15 is designed as a plunger which is guided so as to be linearly movable in a guide slot 32 designed in the longitudinal direction of the furniture panel 18 in the furniture panel 18. The plunger-like ejector member 15 is therefore between the in Figure 1 locking position 17 shown and one in Figure 3 Ejection position 33 shown guided linearly movable.

Wie insbesondere ebenfalls in Figur 1 gezeigt, weisen die Verriegelungsmittel ein Verriegelungselement in Form einer Verriegelungsklinke 34 auf. Die Verriegelungsklinke 34 ist über einen weiteren Verbindungshebel 35 mit dem Basishebel 20 verbunden. Auch der weitere Verbindungshebel 35 ist zweckmäßigerweise als Flachhebel ausgebildet. Der weitere Verbindungshebel 35 ist einerseits um das dritte Gelenk 29 gelenkig am Basishebel 20 gelagert und andererseits über ein fünftes Gelenk 36 an der Verriegelungsklinke 34 angelenkt. Der Verriegelungsklinke 34 sind Steuermittel zugeordnet, die im Beispielsfall eine Führungsbahn 37 zur Zwangsführung der Verriegelungsklinke 34 aufweisen. Wie insbesondere in Figur 2 gezeigt, erstreckt sich die Führungsbahn 37, die zweckmäßigerweise als Führungskulisse in der Möbelplatte 18 ausgebildet ist, in Längsrichtung der Möbelplatte 18. Die Verriegelungsklinke 34 besitzt an ihrer Unterseite einen Führungsstift (nicht dargestellt), der in die Führungsbahn 37 eintaucht und dort zwangsgeführt ist. Die Verriegelungsklinke 34 besitzt ferner einen nasenartigen Vorsprung 38, der über den Längsrand der Möbelplatte 18 hinaussteht. Die kulissenartige Führungsbahn 37 besitzt einen sich im Wesentlichen parallel zum Längsrand der Möbelplatte 18 erstreckenden Führungsbereich 39, an den sich endseitig jeweils Funktionsbereiche anschließen. Einer dieser Funktionsbereiche ist als Verriegelungsnut 40 ausgebildet, die schräg zum Führungsbereich 39 der Führungsbahn 37 verläuft, und zwar in Richtung zum Längsrand der Möbelplatte 18 ansteigend. In der Verriegelungsstellung 17 der Verriegelungsklinke 34 ist der Führungsstift an der tiefsten Stelle der Verriegelungsnut 40 positioniert.As in particular also in Figure 1 As shown, the locking means comprise a locking element in the form of a locking pawl 34. The locking pawl 34 is connected to the base lever 20 via a further connecting lever 35. The further connecting lever 35 is also expediently designed as a flat lever. The further connecting lever 35 is hinged on the one hand around the third joint 29 on the base lever 20 and on the other hand is articulated on the locking pawl 34 via a fifth joint 36. The locking pawl 34 is assigned control means which, in the example, have a guide track 37 for positively guiding the locking pawl 34. As in particular in Figure 2 As shown, the guide track 37, which is expediently designed as a guide slot in the furniture board 18, extends in the longitudinal direction of the furniture board 18. The locking pawl 34 has a guide pin (not shown) on its underside which dips into the guide track 37 and is positively guided there. The locking pawl 34 also has a nose-like projection 38 which projects beyond the longitudinal edge of the furniture panel 18. The link-like guide track 37 has a substantially parallel to Guide area 39 extending along the longitudinal edge of the furniture panel 18, to which functional areas are connected at each end. One of these functional areas is designed as a locking groove 40, which runs obliquely to the guide area 39 of the guide track 37, namely increasing in the direction of the longitudinal edge of the furniture panel 18. In the locking position 17 of the locking pawl 34, the guide pin is positioned at the lowest point of the locking groove 40.

Die Vorrichtung 11 umfasst ferner ein Betätigungsorgan 41, das im Beispielsfall an der Korpusschiene 13 befestigt ist. Das Betätigungsorgan 41 besitzt im Längsschnitt eine L-artige Ausgestaltung, mit einem kurzen Querschenkel 42, der dem Ausstoßorgan 15 zugeordnet ist und in der Schließstellung der Schublade in Anlage mit einem Beaufschlagungsabschnitt des Ausstoßorgans 15 liegt. Ferner ist ein im Wesentlichen parallel zum Längsrand der Möbelplatte 18 verlaufender Längsschenkel 43 vorgesehen, der an seinem freien Ende ein Mitnehmerelement 44 aufweist, das in nachfolgend noch näher ausgeführter Weise mit dem Vorsprung 38 an der Verriegelungsklinke 34 zusammenwirkt.The device 11 further comprises an actuating member 41 which, in the example, is fastened to the carcass rail 13. The actuating member 41 has an L-like configuration in longitudinal section, with a short transverse leg 42 which is assigned to the ejector member 15 and, in the closed position of the drawer, is in contact with an impact section of the ejector member 15. Furthermore, a longitudinal leg 43 is provided which runs essentially parallel to the longitudinal edge of the furniture panel 18 and has a driver element 44 at its free end, which cooperates with the projection 38 on the locking pawl 34 in a manner which will be explained in more detail below.

Wie insbesondere in Figur 1 dargestellt, befinden sich die Schublade und die daran befestigte Möbelplatte 18 mit der Ausstoßeinheit 14 zunächst in der Schließstellung. Dabei ist der Querschenkel 42 des Betätigungsorgans 41 in Anlage mit einem Betätigungsabschnitt des Ausstoßorgans 15. Der Benutzer drückt nun die Schublade in der Schließstellung eine vorgegebene und voreingestellte Wegstrecke nach innen. Dabei wird der Abstand zwischen der Querseite der Möbelplatte 18 und dem Querschenkel 42 des Betätigungsorgans 41 verringert und das stößelartige Ausstoßorgan 15 wird weiter in den Führungsschlitz 32 eingefahren. Diese Betätigungsbewegung wird über das vierte Gelenk und den Verbindungshebel 30 und das dritte Gelenk 29 auf den Basishebel 20 übertragen, der im GegenUhrzeigersinn um das Basisgelenk 21 verschwenkt wird. In der Verriegelungsstellung 17 sind die Zugfedern gespannt und die Verriegelungsklinke 34 befindet sich mit ihrem Mitnehmerstift in der Verriegelungsnut 40. Wird nun der Basishebel 20 im Gegen-Uhrzeigersinn um das Basisgelenk 21 verschwenkt, so wird auch das dritte Gelenk 29, das sich ebenfalls am Basishebel 20 befindet, mit verschwenkt. Über die Ankopplung des Basishebels 20 über den weiteren Verbindungshebel 35 mit der Verriegelungsklinke 34 führt dies dazu, dass der in der Verriegelungsposition befindliche Mitnehmerstift in der Verriegelungsnut 40 zwangsgeführt nach schräg außen verlagert wird, wodurch die Verriegelung aufgehoben wird.As in particular in Figure 1 shown, the drawer and the attached furniture panel 18 with the ejector unit 14 are initially in the closed position. The transverse leg 42 of the actuating member 41 is in contact with an actuating section of the ejector member 15. The user now pushes the drawer in the closed position a predetermined and preset distance. The distance between the transverse side of the furniture panel 18 and the transverse leg 42 of the actuating element 41 is reduced and the plunger-like ejector element 15 is moved further into the guide slot 32. This actuation movement is via the fourth joint and the connecting lever 30 and the third Transfer joint 29 to the base lever 20, which is pivoted counterclockwise about the base joint 21. In the locking position 17, the tension springs are tensioned and the locking pawl 34 is located with its driving pin in the locking groove 40. If the base lever 20 is now pivoted counterclockwise about the base joint 21, the third joint 29, which is also located on the base lever 20 is located, pivoted with. By coupling the base lever 20 via the further connecting lever 35 to the locking pawl 34, the driver pin in the locking position is positively displaced obliquely outwards in the locking groove 40, whereby the locking is canceled.

Nach Aufhebung der Verriegelung werden die Zugfedern wirksam, deren Federkraft bestrebt ist, den Abstand der beiden Trägerteile 25a, 25b zueinander zu verkürzen. Dies führt dazu, dass die Federkraft der Zugfedern den Basishebel 20 dazu veranlassen, in Uhrzeiger-Richtung um das Basisgelenk 21 zu verschwenken. Dabei wird das Ausstoßorgan 15 über die Ankopplung mittels des Verbindungshebels 30 aus dem Führungsschlitz 32 herausgestoßen, wodurch die Möbelplatte 18 und die angekoppelte Schublade vom Betätigungsorgan 41 weg gestoßen werden und die Schublade ausgestoßen wird.After the locking is canceled, the tension springs become effective, the spring force of which tends to shorten the distance between the two carrier parts 25a, 25b. As a result, the spring force of the tension springs cause the base lever 20 to pivot in a clockwise direction about the base joint 21. The ejector 15 is pushed out of the guide slot 32 via the coupling by means of the connecting lever 30, whereby the furniture panel 18 and the coupled drawer are pushed away from the actuating element 41 and the drawer is ejected.

Die Verriegelungsklinke 34 wird dabei auf dem geradlinigen Führungsbereich 39 geführt. Wie insbesondere in Figur 3 gezeigt, wird der Vorsprung 38 der Verriegelungsklinke 34 dabei am ortsfesten Mitnehmerelement 44 vorbeibewegt. Dabei drückt das Mitnehmerelement 44 die Verriegelungsklinke 34 mit dem Vorsprung 38 zur Seite, in dem die Verriegelungsklinke 34 in Uhrzeiger-Richtung um das fünfte Gelenk 36 verschwenkt wird. Eine Feder (nicht dargestellt) sorgt dafür, dass die Verrieglungsklinke 34 mit dem Vorsprung 38 nach Passieren des Mitnehmerelements 44 wieder in ihre Ausgangsstellung zurück schwenkt. Beim Wiedereinfahren trifft der Vorsprung 38 dann wieder auf das Mitnehmerelement 44, wie nachfolgend noch beschrieben. Wie insbesondere in Figur 3 gezeigt, wird das Ausstoßorgan 15 soweit ausgestoßen, bis die Zugfedern entspannt sind. Die Schublade kann dann losgelöst von dem Betätigungsorgan 41 weiter ausgefahren werden.The locking pawl 34 is guided on the straight guide area 39. As in particular in Figure 3 As shown, the projection 38 of the locking pawl 34 is moved past the stationary driver element 44. In doing so, the driver element 44 presses the locking pawl 34 with the projection 38 to the side, in which the locking pawl 34 is pivoted in a clockwise direction about the fifth joint 36. A spring (not shown) ensures that the locking pawl 34 with the projection 38 after passing the Driver element 44 pivots back into its original position. When retracting, the projection 38 then meets the driver element 44 again, as will be described below. As in particular in Figure 3 shown, the ejector 15 is ejected until the tension springs are relaxed. The drawer can then be extended further, detached from the actuating member 41.

Die Figuren 5 und 6 zeigen das Wiedereinfahren der Schublade in die Schließstellung. Beim Schließen der Schublade kommt der Vorsprung 38 an der Verriegelungsklinke 34 mit dem ortsfesten Mitnehmerelement 44 am Betätigungsorgan 41 in Kontakt, wodurch die Verriegelungsklinke 34 im Führungsbereich 39 in Richtung ihrer Verriegelungsstellung 17 linear verfahren wird. Diese Einfahrbewegung bewirkt ein Verschwenken des Basishebels 20 um das Basisgelenk 21 in Gegen-Uhrzeigerrichtung. Dabei wird der Abstand der beiden Trägerteile 25a, 25b des Federspeichers 16 vergrößert und die Zugfedern werden gespannt. Beim weiteren Einfahren der Schublade schnappt der Mitnehmerstift der Verriegelungsklinke 34 in die Verriegelungsnut 40 ein, wobei die Verriegelungsklinke 34 am fünften Gelenk 36 in Gegen-Uhrzeigerrichtung verschwenkt wird, sodass der Vorsprung 38 außer Kontakt zum Mitnehmerelement 44 gelangt, wodurch Vorsprung 38 und Mitnehmerelemnt 44 aneinander vorbeifahren können. Ab einer bestimmten Einfahrstellung kommt der Querschenkel 42 des Betätigungsorgans 41 wieder in Kontakt mit dem Betätigungsabschnitt des Ausstoßorgans 15, wodurch die in Figur 1 gezeigte Stellung erreicht ist. In dieser Stellung sind die Zugfedern des Federspeichers 16 gespannt, wodurch deren Federkraft für den anschließenden Ausstoßvorgang wieder zur Verfügung steht.The Figures 5 and 6 show the retraction of the drawer into the closed position. When the drawer is closed, the projection 38 on the locking pawl 34 comes into contact with the stationary driver element 44 on the actuating member 41, whereby the locking pawl 34 is moved linearly in the guide area 39 in the direction of its locking position 17. This retraction movement causes the base lever 20 to pivot about the base joint 21 in a counterclockwise direction. The distance between the two support parts 25a, 25b of the spring accumulator 16 is increased and the tension springs are tensioned. When the drawer is retracted further, the driver pin of the locking pawl 34 snaps into the locking groove 40, the locking pawl 34 on the fifth joint 36 being pivoted counterclockwise so that the projection 38 moves out of contact with the driver element 44, whereby the projection 38 and the driver element 44 come together can drive past. From a certain retracted position, the transverse leg 42 of the actuating member 41 comes into contact again with the actuating section of the ejector member 15, whereby the in Figure 1 position shown is reached. In this position, the tension springs of the spring accumulator 16 are tensioned, so that their spring force is available again for the subsequent ejection process.

Charakteristisch ist, dass der Abstand zwischen dem ersten Gelenk 23, an dem der Federspeicher 16 an den Basishebel 20 angekoppelt ist, zum Basisgelenk 21 kleiner ist, als der Abstand zwischen dem zweiten Gelenk 28, an dem das Ausstoßorgan 15 angekoppelt ist, zum Basisgelenk 21. Am größten ist der Abstand zwischen dem dritten Gelenk 29, an dem die Verriegelungsklinke 34 angekoppelt ist und dem Basisgelenk 21. Beim Ausstoßen wirkt also die relativ große Zugkraft der Zugfedern mittels eines kleinen Hebelarms auf den Basishebel 20. Der Hebelarm zwischen dem Ausstoßorgan 15 und dem Basisgelenk 21 ist jedoch größer, sodass die die Zugkraft der Federn in eine etwas kleinere Kraft zum Ausstoßen übersetzt wird. Ein großer Vorteil ist jedoch der große Hebelarm zwischen dem dritten Gelenk 29 und dem Basisgelenk 21, wodurch die Zugfedern beim Einfahren infolge des großen Hebelarms mit einer relativ geringen Kraft gespannt werden können. Der Kraftaufwand für den Benutzer zum Spannen der Zugfedern ist also minimiert. Trotzdem stellen die Zugfedern beim Ausstoßen eine größere Kraft zur Verfügung, die dann über das Ausstoßorgan 15 abgegeben wird und für das Ausstoßen der Schublade sorgt.It is characteristic that the distance between the first joint 23, at which the spring accumulator 16 is attached to the base lever 20 is coupled, to the base joint 21 is smaller than the distance between the second joint 28, to which the ejector 15 is coupled, to the base joint 21. The largest is the distance between the third joint 29, to which the locking pawl 34 is coupled and the Base joint 21. During ejection, the relatively large tensile force of the tension springs acts on the base lever 20 by means of a small lever arm. However, the lever arm between the ejection element 15 and the base joint 21 is larger, so that the tensile force of the springs translates into a slightly smaller force for ejection becomes. A great advantage, however, is the large lever arm between the third joint 29 and the base joint 21, as a result of which the tension springs can be tensioned with a relatively small force during retraction due to the large lever arm. The effort for the user to tension the tension springs is thus minimized. Nevertheless, the tension springs make a greater force available during ejection, which force is then released via the ejection element 15 and ensures that the drawer is ejected.

Claims (20)

  1. Device for the opening and closing of a movable furniture part, in particular a drawer, door or flap, with an ejector unit (14) which has at least one ejector organ (15) and rechargeable energy storage means so connected to the ejector organ (15) via connecting means that, on pressing-in of the movable furniture part (12) by a preset and presettable distance, energy stored in the energy storage means may be made available as kinetic energy to eject the movable furniture part (12), wherein the connecting means comprise a lever system (19) with several levers hinged to one another via joints, characterised in that the lever system (19) has a base lever (20) pivotable around a base joint (21), to which the energy storage means are hinged via a first joint (23) and the ejector organ (15) is hinged via a second joint (28).
  2. Device according to claim 1, characterised in that the ejector unit (14) has locking means which hold the ejector organ (15) in a locking position (17) and which, on pressing-in of the movable furniture part (12) by the preset or presettable distance, may be unlocked to initiate the ejection.
  3. Device according to claim 2, characterised in that the locking means are connected to the ejector organ (15) and the energy storage means via the lever system (19).
  4. Device according to claim 2 or 3, characterised in that the locking means have at least one locking element which may be controlled through control means in such a way that, on pressing-in of the movable furniture part (12), it may be unlocked by positive guidance of the ejector organ (15) exerted by means of the control means.
  5. Device according to claim 4, characterised in that the locking element is in the form of a locking catch (34) mounted pivotably around a pivot axis, and the control means have a guide track (37) for positive guidance of the locking catch (34).
  6. Device according to any of the preceding claims, characterised in that the lever system (19) is in the form of a four- or seven-joint linkage mechanism.
  7. Device according to any of the preceding claims, characterised in that the locking element is hinged to the base lever (20) via a third joint (29).
  8. Device according to any of the preceding claims, characterised in that the distance between the base joint (21) and the first joint (23) is less than the distance between the base joint (21) and the second joint (28).
  9. Device according to one of claims 7 or 8, characterised in that the distance between the base joint (21) and the third joint (29) is greater than the distance between the base joint (21) and the second joint (28).
  10. Device according to any of the preceding claims, characterised in that the ejector organ (15) is hinged to the base lever (20) via a first connecting lever (30), wherein the first connecting lever (30) is hinged on the one hand via the second joint (28) to the base lever (20) and via a fourth joint (31) to the ejector organ (15).
  11. Device according to any of the preceding claims, characterised in that the locking element, in particular locking catch (34), is hinged via a second connecting lever (35) to the base lever (20), wherein the second connecting lever (35) is hinged on the one hand via the third joint (29) to the base lever (20) and via a fifth joint (36) to the ejector organ (15).
  12. Device according to any of the preceding claims, characterised in that the energy storage means are in the form of a spring accumulator (16) equipped with at least one spring (26), wherein preferably a tension spring is provided as spring (26).
  13. Device according to claim 12, characterised in that at least one spring (26) is mounted on a spring carrier (24) where it is clamped between first and second carrier parts (25a, 25b), movable relative to one another, wherein preferably the first carrier part (25a) is hinged via the first joint (23) to the base lever (20).
  14. Device according to any of the preceding claims, characterised in that m actuating organ (41) is provided to actuate the ejector organ (15) in such a way that pressing-in of the ejector organ (15) via the lever system (19) may be guided into an unlocking of the locking element and, through the stored kinetic energy released from the energy storage means, into ejection of the movable furniture part (12).
  15. Device according to any of the preceding claims, characterised in that the actuating organ (41) has a driving element (44) which, on closing of the movable furniture part (12), may be brought into contact with the locking element so that the latter is transferred into the locking position (17), with charging up of the energy storage means, preferably tensioning of the spring or springs (26).
  16. Device according to any of the preceding claims, characterised in that there is provided a mounting plate (18), on which the energy storage means, the ejector organ (15), the lever system (19) and if applicable the locking element are mounted.
  17. Device according to any of the preceding claims, characterised by a damping device for damping the simple movement of the movable furniture part (12) into the closed position.
  18. Furniture part (12), in particular a drawer, characterised by a device according to any of claims 1 to 17.
  19. Piece of furniture with a guiding device for guiding a movable furniture part (12) into at least one movable furniture part (12), characterised by a device (11) according to any of claims 1 to 17.
  20. Piece of furniture according to claim 19, characterised in that the mounting plate (18) is mounted on the guiding device or on the movable furniture part (12) and, corresponding to this, the actuating organ (41) is mounted on the movable furniture part (12) or on the guiding device.
EP16182726.6A 2015-08-21 2016-08-04 Device for opening and closing a movable furniture part Active EP3138444B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202015005844.2U DE202015005844U1 (en) 2015-08-21 2015-08-21 Device for opening and closing a movable furniture part

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EP3138444A1 EP3138444A1 (en) 2017-03-08
EP3138444B1 true EP3138444B1 (en) 2021-02-24

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US (1) US10619393B2 (en)
EP (1) EP3138444B1 (en)
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Publication number Publication date
CN106466060B (en) 2020-05-19
EP3138444A1 (en) 2017-03-08
DE202015005844U1 (en) 2016-11-23
CN106466060A (en) 2017-03-01
US10619393B2 (en) 2020-04-14
US20170051547A1 (en) 2017-02-23

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