EP3132714A1 - Device for moving a movable furniture part in an opening direction relative to a furniture body of a piece of furniture - Google Patents

Abstract

A device (1, 58, 62) for moving a movable furniture part (53) in an opening direction relative to a furniture body (51) of a piece of furniture (50) is proposed, wherein the movable furniture part (53) is guided by guide means (52) in the opening direction and can be brought in a closing direction, wherein the device (1, 58, 62) has a force storage device (3), so that the movable furniture part (53) in an opening operation under the action of the energy storage device (3) can be brought in the opening direction, wherein during a movement of the movable furniture part (53) in the closing direction, a charging process of the energy accumulator (3), and wherein the charging by a power transmission from the ejector via a coupling device (4) on the energy storage (3). According to the invention, the coupling device (4) comprises a guide lever (34), a connecting element and a tensioning lever (30), such that the connecting element and the tensioning lever (30) are arranged on the guide lever (34) such that a translation of the force of the force accumulator during the charging process of the energy store Ejectors via the coupling device (4) takes place on the energy storage.

Description

The invention relates to a device for moving a movable furniture part in an opening direction with respect to a furniture body of a piece of furniture and a piece of furniture with such a device.

State of the art

In furniture parts, such as drawers, furniture doors or furniture flaps, which are movably received on a furniture body of a furniture, guide units, hinges and fittings come to influence the movement of the respective furniture part used.

In some embodiments of the respective device, an additional function for influencing the one is provided. This concerns, for example, systems for providing an opening function of the furniture part with a loading function of the opening system present in the closing operation of the furniture part.

Task and advantages of invention

The invention has for its object to provide a device of the type described in the introduction, which is a has improved charging function.

This object is solved by the features of claim 1.

In the dependent claims advantageous and expedient embodiments of the invention are given.

The invention relates to a device for moving a movable furniture part in an opening direction with respect to a furniture body of a piece of furniture, wherein the movable furniture part can be brought via guide means in the opening direction and in a closing direction opposite to the opening direction. The device has a force storage, so that with the mounted on the furniture device, the movable furniture part can be brought in an opening operation under the action of the energy storage in the opening direction, wherein upon movement of the movable furniture part in the closing direction, a loading process of the energy storage takes place, and wherein the Charging takes place by a power transmission from the ejector via a coupling device to the energy storage.

Preferably, the movable furniture part is designed as a drawer or flap and the drawer or flap on the furniture body via guide means, e.g. Pull-out rails or hinges, movably guided on the furniture carcass.

Advantageously, the device is arranged on the movable furniture part, in particular on an underside of a drawer bottom. The device may also be formed on guide means of the furniture and / or on the furniture body.

The ejector of the device interacts in particular with a driver of the movable furniture part and / or the guide means of the furniture part and / or the furniture body during an opening and / or closing operation.

If the device is arranged on the movable furniture part, then the driver on the guide means of the furniture and / or on Furniture body designed, advantageous fixed position to the furniture body. If the device on the guide means of the furniture and / or on the furniture body advantageous positionally fixed to the furniture body arranged, the driver is formed on the movable furniture part.

The coupling device can be made of metal and / or steel and / or sheet metal and / or wood and / or glass and / or plastic or a combination of the materials.

The essential aspect of the invention is now to be seen in that the coupling device comprises a guide lever, a connecting element and a clamping lever, that the connecting element and the clamping lever are arranged on the guide lever, that during the loading process of the energy storage, a translation of the force of the ejector on the coupling device takes place on the energy storage.

As a result, charging of the force accumulator via the ejector and the coupling device is effected with a lower force than the unloading process of the force accumulator.

In a preferred variant of the invention, the coupling device is configured such that the force introduced into the ejector is amplified via the coupling device in the sense of a reduction transferred to the energy storage.

The force is applied, for example by a user from the outside to the drawer, for example, by an impulse, such as a shock and transmitted in a closing movement of the movable furniture part on the ejector. About the ejector then takes place a charging of the energy storage device via the coupling device during the closing movement of the movable furniture part.

Moreover, it is advantageous that a first articulation point of the connecting element and a first articulation point of the clamping lever are formed on the guide lever such that they are at a Opening and / or closing operation of the movable furniture part with a pivoting movement of the guide lever describe a circular movement in a plane of movement of the coupling device.

In an advantageous embodiment of the invention, the device is designed such that the first articulation point of the clamping lever in the circular motion travels a greater distance than the first articulation point of the connecting element.

The plane of movement of the guide lever, the clamping lever and the connecting element of the coupling device is advantageously aligned parallel to a plane of movement of the movable furniture part.

Advantageously, the guide lever is configured such that the lever ratio, for example the lever length of the first articulation point of the clamping lever, to the lever length of the first articulation point of the connecting element on the guide lever in a range of 2: 1 to 4: 3, in particular 4.7: 3.

Thereby, a force amplification can be realized, for example, a force transmission ratio of the coupling means, i. an acting force on the energy accumulator to an effective force on the ejector to be generated when loading the force accumulator in a range between 2: 1 to 3: 1.

In a preferred variant of the invention, a second articulation point is formed on the connecting element and the clamping lever, wherein the connecting element and the clamping lever are arranged at second articulation points on the device such that during an opening and / or closing operation of the movable furniture part every second articulation point parallel to Opening and / or closing direction of the movable furniture part is moved in a plane of movement of the coupling device.

This allows a parallel to the direction of movement of the drawer force from the ejector in the coupling device and a parallel power output from the coupling device to the energy storage can be realized.

Preferably, the connecting element and the clamping lever at the second pivot point are movable, in particular rotatably arranged.

Advantageously, the connecting element at the second articulation point is connected to the energy accumulator and the tensioning lever at the second articulation point with the ejector.

The connecting element can be designed such that it can transmit tensile forces, in particular exclusively tensile forces, which act on the connecting element due to the guide lever and / or the force accumulator.

Preferably, the device has a base plate, which has, for example, a first guide slot.

For example, the second end, in particular the second articulation point of the connecting element is arranged on the energy storage and slidably mounted on the first guide slot of the base plate.

The first guide slot can be designed such that when loading and / or unloading the force accumulator, the second end of the connecting element is movable parallel to the opening and / or closing direction of the movable furniture part.

For example, the second end of the connecting element, connected to a carriage of the energy accumulator, in particular at the second pivot point, wherein the carriage is guided on the base plate in the first guide slot, for example, parallel to the opening and / or closing direction of the movable furniture part. As a result, it is possible to achieve an always equalized introduction of force into the energy accumulator.

Advantageously, the clamping lever is designed such that it compressive forces, in particular exclusively compressive forces, transmits to the guide lever, which act on the clamping lever in the opening and / or closing direction due to a movement of the ejector. The guide lever and the connecting element are in particular designed such that the pressure forces of the ejector are converted into tensile forces on the energy storage.

In addition, the ejector may have a guide slot on which, for example, the clamping lever is arranged with its second end, in particular its second pivot point such that the second end of the clamping lever during a movement of the force accumulator, in particular when unloading the force accumulator, guided by the guide slot of the ejector becomes.

Advantageously, the clamping lever with its second end and / or the ejector can be arranged to be displaceable directly on a second guide slot of the base plate. The second guide slot is preferably configured such that when loading and / or unloading the force accumulator, the second end of the clamping lever and / or the ejector is guided in parallel to the opening and / or closing direction of the movable furniture part.

Due to the guide slot of the ejector and / or the second guide slot of the base plate, a force of equal design can always be achieved in the coupling device.

It is also advantageous that the coupling device is designed such that a translation of the force of the ejector on the coupling device is variable to the energy storage, in particular in dependence on the path of movement of the elements of the coupling device during the charging process of the energy storage.

Advantageously, the tensioning lever is designed to be longer than the connecting element.

For example, the distance between the first and second Linkage point of the clamping lever and / or the lever length of the clamping lever comparatively larger than the distance between the first and second articulation point of the connecting element and / or the lever length of the connecting element.

It is further proposed that the coupling device is designed as a cam gear.

If the coupling device is configured as a cam gear, a particularly reinforcing force transmission from the ejector to the energy accumulator can be realized, wherein a transmission of a linear force component or a linear movement of the ejector via a pivoting movement of the guide lever takes place on a linear movement of the energy accumulator or a linear force component acts on the energy storage.

For example, due to the configuration as a cam gear during the closing operation of the movable furniture part, the linear movement of the ejector or the second Anlenkpunkts the clamping lever via a pivoting movement of the guide lever in a circular movement of the first articulation points of the clamping lever and the connecting element transmitted and further into a linear movement of the second Anlenkpunkts the connecting element and / or the energy accumulator, which in particular runs parallel to the movement of the ejector implemented.

Advantageously, the coupling device is designed as a coupling mechanism.

Due to the configuration of the coupling device as a coupling gear, a force translation from the ejector to the energy storage, in particular a power-boosting translation can be realized.

In an advantageous embodiment of the device, the guide lever is arranged on the housing of the device. For example, the guide lever is pivotally mounted on a third articulation point on the device.

In an advantageous variant of the device, the guide lever is arranged on the base plate of the housing of the device, in particular on a cover component of the housing.

The cover member may be provided to cover the base plate of the device over a substantial area, i. more than 50% of the surface of the base plate.

In addition, the cover member may be provided to attach the device to the movable furniture part and / or the guide means of the furniture and / or a furniture body. In particular, the cover member is stably formed, for example, from a metal sheet.

The base plate is advantageously formed from its plastic and / or a metal sheet.

Advantageously, the coupling device is designed such that a lever axis of the guide lever has a pivoting range between 0 and 90 degrees, in particular between 0 and 80 degrees, advantageously around the third point of articulation of the guide lever.

In an advantageous embodiment of the device, the first articulation point of the clamping lever and / or the first articulation point of the connecting element pivot about the same center of rotation, wherein the third articulation point of the guide lever forms the center of rotation.

It is also advantageous that a longitudinal axis of the clamping lever to a first lever axis of the guide lever has a first angle and that a longitudinal axis of the connecting element to a second lever axis of the guide lever has a second angle, wherein the first and the second angle during the charging of the Force accumulator due to the design of the Reduce the coupling device.

Due to the configuration of two lever axes on the guide lever, a force transmission during a closing movement of the movable furniture part and thus a charging process of the energy storage can be realized by the ejector on the power storage additionally reinforcing.

Optionally, the guide lever has only one lever axis for all articulation points on the guide lever.

In a further variant of the invention, the coupling device is designed such that the first angle in each position of the coupling device is greater than the second angle.

Advantageously, the coupling device is designed such that the force transmission ratio of the coupling device increases during the loading process of the movable furniture part at the end of the charging process.

Moreover, it is preferred if the lever ratios or angular relationships of the guide lever to the clamping lever or the connecting element to the coupling device are such that the ratio of the two angles to each other in the course of the charging of the energy storage in a manner that the power transmission ratio of the coupling device From the ejector on the energy storage initially remains approximately the same and increases toward the end of the charging process.

This has the advantage that the loading movement of the energy storage is extended. This makes it possible to arrange a comparatively weak spring assembly on the force accumulator, whereby a smaller force must be spent on the ejector in the charging process for charging the force accumulator, compared to a spring assembly of the energy accumulator with a higher spring constant and thus a shorter charging path.

If the force of the ejector during the charging of the energy storage is not sufficient to overcome, for example, a spring force of the energy storage, the charging process is not performed or not completed. The movable furniture part can not reach its closed position on the furniture then.

It is also advantageous that the energy accumulator is designed such that it acts directly and directly on the ejector during the opening process of the movable furniture part, in particular without a force transmission.

Advantageously, the coupling of the energy accumulator with the ejector is configured such that the force transmission during the opening process of the movable furniture part from the energy storage on the ejector follows at least approximately a linear function.

It is also advantageous that the ejector couples exclusively with the energy storage device during the closing operation of the movable furniture part via the coupling device.

In this case, the ejector and the energy storage are not coupled via the coupling device during the opening operation of the movable furniture part.

For example, a retaining member is arranged and / or formed on the power storage. The holding member is provided to hold the energy storage in the discharged state to the device under a bias.

Optionally, the holding member of the energy accumulator abuts in the partially discharged state of the force accumulator on a holding element of the force accumulator and / or the device. As a result, the energy storage is held in a partially discharged state under bias.

Advantageously, a locking element is arranged and / or formed on the guide lever.

The locking element is intended to hold the charged energy storage via the coupling device in its charged state.

In an advantageous variant of the device, a stop element is arranged and / or formed on the guide lever.

The stop element may be configured such that the energy storage device is held under a bias after its discharge by the coupling device in a partially discharged state.

Advantageously, the stop element is designed in such a way that a noise disturbing a user of the device, for example during the opening process, e.g. a clicking sound is reduced when striking the stop element and / or the guide lever to a stop member of the device or does not arise.

Advantageously, the stop element can also be formed on the housing of the device, advantageously on the base plate of the housing and / or on the cover component of the housing.

The stop element can be configured as an elastic element, for example as a spring element and / or of an elastic rubber. The stop element can have a springy and / or damping effect.

Description of the embodiment

Further features and advantages of the invention are explained in more detail with reference to exemplary embodiments illustrated schematically in the figures.

Figur 1

ein erfindungsgemäßes Möbel perspektivisch von schräg oben mit einer Schublade im vollständig geöffneten Zustand an einem Möbelkorpus,

Figur 2

eine erfindungsgemäße Vorrichtung ohne ein Abdeckbauteil in Explosionsdarstellung,

Figur 3 bis 8

die Vorrichtung gemäß Figur 2 im zusammengesetzten Zustand in einer Aufsicht einer ersten Hauptseite in unterschiedlichen Betriebszuständen,

Figur 9

die Vorrichtung gemäß Figur 5 mit dem Abdeckbauteil perspektivisch schräg von unten mit Blick auf eine zweite Hauptseite der Vorrichtung,

Figur 10

ein Diagramm des Kraftverlaufs zum Spannen eines Kraftspeichers am Auswerfer der Vorrichtung aus Figur 2 und

Figur 11

eine Skizze der Bewegung der Lagerzapfen des Führungshebels aus Figur 10.

In detail shows:

FIG. 1

an inventive furniture in perspective from obliquely above with a drawer in the fully open state on a furniture body,

FIG. 2

a device according to the invention without a cover component in exploded view,

FIGS. 3 to 8

the device according to FIG. 2 in the assembled state in a plan view of a first main page in different operating states,

FIG. 9

the device according to FIG. 5 with the cover component in perspective obliquely from below with a view of a second main side of the device,

FIG. 10

a diagram of the force curve for tensioning a force accumulator on the ejector of the device FIG. 2 and

FIG. 11

a sketch of the movement of the bearing pin of the guide lever FIG. 10 ,

An inventive furniture 50 with a box-shaped furniture body 51 and a guide means 52 movably guided drawer 53 is in FIG. 1 shown. The drawer 53 comprises a drawer bottom 54, a drawer front 55, two opposite side walls 56 and a drawer rear wall 57. For guiding the drawer 53, two equally acting guide means 52 are provided between each side wall 56 of the drawer 53 and an associated body side wall 59. On an underside of the drawer bottom 54 is an inventive device 58 (shown in phantom) for moving or ejecting the as Drawer 53 trained furniture part arranged in the opening direction M1.

FIG. 2 shows the exploded view of the device 58, which is designed as an ejector unit 1 for the drawer 53.

The ejector unit 1 is used for power-assisted ejection of the drawer 53 over a first part of the opening movement of the drawer 53 from a closed position relative to the furniture body 51 in the opening direction M1 of the drawer 53rd

The drawer 53 is slidably mounted on the furniture body 51 in the direction of M1 and M2 via the guide means 52, for example, two similar partial or full extension. The ejector unit 1 may alternatively be arranged on the furniture body 51 or on the guide means 52 of the furniture 50.

The ejector unit 1 comprises, inter alia, a base plate 2, a force accumulator 3, a coupling device 4, an ejector 5, a trigger element designed as a trigger 6 and a locking member 7.

A housing of the ejector unit 1 comprises the base plate 2 and a cover component 9, which consists of FIG. 9 is apparent. The ejector unit 1 can be arranged via the housing or via the cover component 9 and / or the base plate 2 on the underside of the drawer bottom 54 and / or on the guide means 52.

On the base plate 2 holding sections, guide contours, stop members and / or receiving portions for connection of the individual components of the ejector unit 1 are formed. The base plate 2 is designed essentially as a rectangular, elongated or strip-shaped component with a comparatively small height h of, for example, approximately 5 to 15 millimeters. The base plate 2 further has a width b of about 4 to 10 centimeters and a length g.

According to the embodiment shown, the energy accumulator 3 comprises two parallelly arranged similar spiral springs 10, 11, which form a spring assembly. At a first end 12 of the force accumulator 3, the coil springs 10, 11 are arranged on an adjustable fixed bearing 13. The fixed bearing 13 comprises a movable bearing part 14, on which the coil springs 10, 11 are detachably but firmly received and an adjusting member 15 with an operating section 16, via which a user can set a position of the end 12 of the energy accumulator 3 from the outside variable fixed position. As a result, a force effect of the energy accumulator 3 can advantageously be preset on the drawer 53 during the opening process of the drawer 53.

At a second end 17 of the energy accumulator 3, the associated ends of the coil springs 10, 11 are fixed to a carriage-like moving element 18. The slide-like movement element 18 is guided via an associated guide contour 19 on the base plate 2 movable in a direction of movement P1 and an opposite direction of movement P2 linear.

The directions of movement P1 and P2 of the moving element 18 (see FIG. FIGS. 2, 3 ) run parallel to the opening direction M1 of the drawer 53 and a closing direction M2 opposite thereto.

If the ejector unit 1 is fixedly arranged on the furniture body 51 and / or on a stationary part of the guide means 52, the opening direction of the drawer 53 corresponds to the direction P1 and the closing direction of the drawer 53 to the direction P2.

In addition, it is assumed that a mounting state of the ejector unit 1 on the drawer bottom 54.

The Figures 3 . 7 . 8th show the ejector unit 1 in a clamping state of the energy accumulator 3, in which the coil springs 10, 11 stretched or stressed on train, in this case the moving member 18 is offset relative to a retracted in the direction P2 position on the base plate 2 in the direction of P1 and held in a clamping position.
The Figures 5 . 6 show the ejector unit 1 in a discharged basic state of the energy accumulator 3, in which the coil springs 10, 11 are further biased to train, but with a smaller amount, and have a length L1.

In the clamping state of the force accumulator 3, the coil springs 10, 11 have a length L2 which is greater than L1.

On the movement element 18, a holding member 32 with a stop element 26 is present. The stop element 26 is in a force-assisted opening operation in contact with an ejector. 5

The ejector 5 is in particular only linearly movable or parallel to the direction of movement of the moving element 18 in the directions P1 and P2 through the coupling device 4, the force memory 3 and the movement member 18 preferably exclusively during the closing operation of the drawer 53 - and movable. For this purpose, a linear guide 20 is formed on the base plate 2, which on guide portions z. B. is tuned on one side of the ejector 5.

An effected by the ejector unit 1 opening operation of the drawer 53 takes place exclusively on a direct operative connection of the energy accumulator 3 via the movement in the direction of P2 moving member 18 on the ejector 5. For this purpose, a stop member 26 is formed on the movement element 18, which is advantageously designed elastically and thus prevents a user disturbing noise when hitting the movement member 18 on the ejector 5 in the opening operation of the drawer 53 or at least dampens ( FIG. 3 . 4 . 5 ).

A front gap adjusting arrangement 8, which is formed on the ejector 5, comprises a housing 45 and an adjusting screw 22 with a contact section 21. The adjusting screw 22 has an external thread which cooperates with an internal thread on the housing 45. By manually rotating an operating section 46 of the adjusting screw 22 by a user, a position of the contact section 21 of the adjusting screw 22 in the direction of P1 or P2 is adjustable depending on the direction of rotation. The adjusting screw 22 is in particular designed to be self-locking relative to the housing 45. By the position specification of the adjusting screw 22, a measure of a front gap between the drawer front 55 of the furniture body 51 closed drawer 53 and end faces of the furniture body 51 is predetermined.

The contact portion 21 of the screw 22 is in the tensioned or charged state of the energy accumulator 3 to a driver 23, which forms a stop for the contact portion 21 in corresponding operating states. The in the FIGS. 3 to 8 only indicated by dashed lines driver 23 may for example be present on a fixed rail of the guide means 52 or be attached to the furniture body 51 when the ejector unit 1 is arranged on the drawer 53.

If, however, the ejector unit 1 is arranged on the furniture carcass 51 or on a positionally fixed part of the guide means 52 of the furniture 50, the driver 23 can be present on the drawer 53 and thus movably on the furniture carcass 51.

Is starting from the basic position of the ejector unit 1 according to FIG. 3 a lock on the ejector unit 1 canceled, which FIG. 4 shows and is explained in more detail below, the tensioned or loaded energy storage 3 pulls the moving member 18 in the direction P2, which pushes the ejector 5 in the direction P2 relative to the base plate 2 via the stop member 26 and pushes.

As soon as the ejector 5 moves on the base plate 2 in the direction P2, a pawl component 24 of the ejector unit 1, which is mounted pivotably on the ejector 5, becomes a swiveled-in position that is completely sunk to an outer edge of the base plate 2 FIG. 4 placed in a with a nose partially over the outer edge of the base plate 2 projecting swung-out position ( FIG. 5 ), which is realized via a loop-shaped closed guide track 25 in the base plate 2 and a guide pin 24 a engaging on the pawl component 24.

To illustrate the pawl member 24 whose hidden by other components, in particular by the ejector 5 outline in the FIGS. 3 to 8 indicated by dashed lines.

In the in FIG. 5 illustrated basic state, the energy storage device 3 is in an end position of the discharge state, the energy storage device 3 can not move the ejector 5 in the direction P2.

The ejector 5 is then due to the kinetic energy of the drawer 53, which is due to the previous Auswerfbewegung, and / or moved by a manual movement of the drawer 53 in the opening direction M1 by a user in the direction P2 relative to the base plate 2. This is possible because the pawl component 24 pivoted outwards on the ejector 5 abuts on the driver 23, so that the ejector 5 reaches its end position shifted maximally far in the direction P2 on the base plate 2 in the further movement of the drawer. The pawl member 24 is fully pivoted again upon reaching the end position on the ejector 5, which is predetermined by the interaction of the guide track 25 with the guide pin 24 a engaging therein on the pawl component 24.

If the drawer 53 is moved further in the opening direction M1 after an unloading operation of the energy accumulator 3, the ejector unit 1 separates from the driver 23 and the contact between the driver 23 and the contact portion 21 of the screw 22 is canceled ( FIG. 6 ).

From the end position described above, which occupies the ejector only briefly, the ejector 5 is urged by spring elements 33 on the base plate 2, for example by a few millimeters in the direction of P1. The spring elements 33 have compared to the coil springs 10, 11 of the energy accumulator 3, a comparatively small force. With the movement of the ejector 5 in the direction P1 by the force of the spring elements 33, a contact portion 29 of the latch member 24 in a waiting position of the ejector 5 in direct, play-free contact with a bearing pin 31 of a clamping lever 30 of the coupling device 4 is brought ( FIG. 6 ). The bearing journal 31 is arranged at a first end of the clamping lever 30 and can move freely along the guide track 27 and / or a linear guide 63, which is formed on the ejector 5, in particular within an opening operation of the drawer 53 until the latch member 24 holds the bearing pin 31 and / or the clamping lever 30 in direct, play-free contact with the ejector 5.

The waiting position of the ejector 5, which in FIG. 6 is shown, is also a start position of the ejector 5 for a charging of the energy storage device 3 via the coupling device. 4

The coupling device 4 comprises in addition to the clamping lever 30, a guide lever 34 and a connecting element 35. The clamping lever 30 is articulated at a second end via a bearing pin 36 on the guide lever 34. The connecting element 35 is likewise articulated on the guide lever 34 at a second end via a bearing journal 37 which is at a distance from the bearing journal 36 and at its first end via a further bearing journal 38 on the movement element 18. The guide lever 34 is movable at a first end via a bearing pin 39, in particular pivotally arranged on the base plate 2. The bearing pin 39 is preferably received both on the base plate 2 and the cover member 9.

A longitudinal axis A1 of the clamping lever 30, which passes through the bearing pins 31, 36 of the clamping lever 30, has an angle α to a first longitudinal axis A2 of the guide lever 34, which runs through the bearing pins 36, 39.

A longitudinal axis A3 of the connecting element 35, which passes through the bearing pins 37, 38 of the connecting element 35, has an angle β to a second longitudinal axis A4 of the guide lever 34, which passes through the bearing pins 37, 39.

The guide lever 34 of the coupling device 4 comprises at a second end a lever attachment 40. On the lever attachment 40, a locking element 41 and a stop element 42 are formed.

The end position of the discharge state of the energy storage 3 ( FIG. 5 ) is predetermined by a stop of the stop element 42 of the guide lever 34 on a wall portion 28 of the base plate 2 and / or abutment of the stop member 42 on a wall portion 47 on a web-like wall 48 of the base plate 2. The wall portion 47 is formed, for example, from an annular portion of a damping element. If the stop element 42 of the guide lever 34 abuts the wall section 47 after a discharge operation of the force accumulator 3, a tensile force in the direction P2 is transmitted from the movement element 18 via the connecting element 35 to the guide lever 34 due to a remaining bias of the spiral springs 10, 11. Due to the rigid design of the coupling device 4 and the abutment of the stop member 42 on the wall portion 47, the moving member 18 is prevented from further movement in the direction P2, the force storage 3 is held with the moving member 18 without play in the end position of the discharge.

In particular, the stop element 42 and / or the wall section 47 can be made elastic or damping be, with which stop noise can be reduced or prevented.

The guide lever 34 can transmit a force with a translation of the clamping lever 30 on the connecting element 35 during clamping of the energy accumulator 3 due to its configuration.

The gear ratio is formed on the one hand by the ratio of the distance of the bearing pins 39 and 36 to the distance of the bearing pins 39 and 37 on the guide lever 34, on the other hand by the combined circular and linear movement of the clamping lever 30 and / or the connecting element 35 to each other during the charging of the Force accumulator 4.

• Der Lagerzapfen 31 und somit das erste Ende des Spannhebels 30 kann sich aufgrund seiner Lagerung in der Führungsbahn 27 ausschließlich parallel zu einer Bewegungsrichtung des Auswerfers 5 insbesondere parallel zu einer Bewegungsrichtung des bewegbaren Möbelteils 53 bewegen.

The elements of the coupling device 4 can move as follows due to their arrangement on the ejection unit 1:

• The bearing pin 31 and thus the first end of the clamping lever 30 can move due to its storage in the guide track 27 exclusively parallel to a direction of movement of the ejector 5 in particular parallel to a direction of movement of the movable furniture part 53.

The bearing pin 38 and thus the first end of the connecting element 35 can move due to its storage on the carriage-like movement element 18 and thus advantageously in the guide contour 19 exclusively parallel to a direction of movement of the moving member 18 and the ejector 5, in particular parallel to the direction of movement of the movable furniture part 53 ,

The bearing pin 36 thus the second end of the clamping lever 30 can move due to its storage at the second end of the guide lever 34 exclusively in a circular path about a center of rotation of the bearing pin 39 of the guide lever 34.

The bearing pin 37 of the connecting element 35 and thus the second end of the connecting element 35 may be due to its storage in a central region of the guide lever 34 move only in a circular path about a center of rotation of the journal 39 of the guide lever 34.

Due to the above-mentioned embodiment, the coupling device 4 can transmit a force for tensioning the energy accumulator 3 from the ejector 5 via the tension lever 30 and the guide lever 34 to the connecting element 35 and thus the energy accumulator 3, in particular the coupling device 4 suppresses the force exerted by the ejector 5 This means that when loading the force accumulator 3, a user has to apply less force to the ejector 5 than he would have to apply if he wanted to load the energy accumulator 3 without a reduction or directly the end 17 of the energy accumulator 3 in Would draw direction P1.

The beginning and the end of the charging of the energy accumulator 3 and the coil springs 10 and 11 are in the FIGS. 6 and 7 illustrated.

The tensioning of the energy accumulator 3 takes place with a movement of the drawer 53 when closing or on a partial path of the closing movement of the drawer 53. The starting position of the ejector unit 1, in which it is prepared for tensioning the energy accumulator 3 and waiting for a closing operation of the drawer, shows FIG. 6 ,

If the drawer 53, for example, closed by a user from the outside, the ejector unit 1 moves towards the driver 23 in the direction of M2. For example, due to the inertia of the drawer 53 relative to the base plate 2, the ejector 5 is moved by striking the driver 23 in the direction of P1.

By the coupling of the ejector 5 via the coupling device 4 with the energy storage device 3 while the moving member 18 of the energy accumulator 3 is also in the direction Pl shifted relative to the base plate 2 and the second end 17 of the coil springs 10, 11 are displaced in the direction P1 and thus the coil springs 10, 11 protracted in length.

At the end of the tensioning process of the energy accumulator 3, the ejector 5 is in a loading end position, this is in FIG. 7 shown. In the clamping state of the energy accumulator 3, the ejector unit 1 is in a locked state.

In the locked state, the locking element 41 of the coupling device 4 and the locking member 7, which is configured as a flap, determine a locking state, wherein a discharge movement of the coupling device 4 is blocked by the locking member 7.

The tensioning of the force accumulator 3 is completely completed before, for example, an automatic retraction for force-assisted retraction of the drawer 53 in the fully closed closed position on the furniture body 51 is effective. The automatic retraction is not part of the ejector unit 1 and integrated, for example, in the guide means 52 or the partial or full extension.

In the Y-axis of the diagram FIG. 10 a force (dimensionless) is plotted and in the X-axis, a path (mm) of the ejector 5 in the course of the tensioning or unloading process of the energy accumulator 3, wherein the position of the force curves K1 and K2 along the X-axis, in particular To see the positions I and II along the X-axis as an example. A unit X on the X axis corresponds to eg 20 mm.

The curve K2 describes a force curve of a force which must be applied to the ejector 5 during the tensioning process of the energy accumulator 3 in order to load the energy accumulator 3 via the coupling device 4. The curve K1 describes a force curve of a force which the force accumulator 3 exerts on the ejector 5 in the course of the unloading process.

Due to the predetermined lever arrangement of the coupling device 4, the ratio of the two angles .alpha., .Beta. To one another and thus the transmission ratio of the coupling device 4 changes in the course of the tensioning process of the force accumulator 3. The course of the ratio of the two angles to one another or the transmission ratio of the coupling device 4 results in FIG the curve K2 according to FIG. 10 ,

Starting from the beginning of the instep I of the energy accumulator 3 (K2), the ejector 5 is moved in the clamping operation of the energy accumulator 3 in the direction P1 in its Spannendposition II. Here, the transmission ratio of the coupling device 4 changes such that initially an ever greater force must be applied through the drawer 53 to the ejector 5 to load the energy storage. In this state, the gear ratio is e.g. approximately constant. The coupling device 4 is formed, for example, further that at the end of the charging process of the energy accumulator 3, the transmission ratio of the coupling device 4 is greater and the force on the ejector 5, which is necessary to load the energy storage 3, is reduced.

The journal 31 sets in the tensioning and / or unloading of the energy accumulator 3 a comparatively greater distance, about 67 mm, back than the bearing pin 38, which covers approximately 39 mm.

Starting from the unloading start position III (K1), the force from the energy accumulator 3, which is transferred directly to the ejector 5 in the unloading process decreases in direction P2 to the discharge end IV of the energy accumulator 3, the force curve is linear at a relatively higher level of force for charging, it finds thus no force transmission takes place (K1, FIG. 10 ).

After tensioning of the energy accumulator 3 is due to the contact with the driver 23 in the direction P1 relative to the base plate by the further closing movement of the drawer 53 of the ejector 2 moves. Here, the operative connection between the pawl member 24 of the ejector 5 and the bearing pin 31 of the clamping lever 30 is released. This is done by an interaction of the guide track 25 with the guide pin 24a on the pawl member 24, wherein the pawl member 24 is pivoted away by the guide of the guide pin 24a in the guide track 25 from the bearing pin 31 ( FIG. 8 ). In this state, the ejector 5 is decoupled from the coupling device 4 and so far moved in the direction P1, in particular by a automatic feed until the drawer 53 is completely closed on the furniture body 51 and the ejector 5 on the trigger 6 in the normal position according to FIG. 3 pending.

In the basic position of the ejector unit 1 according to FIG. 3 it is possible for a user to manually pull the drawer 53 in the opening direction M1 without an ejector function or without previously canceling the locking state. In this case, the energy storage 3 of the ejector unit 1 remains unactuated or charged.

In order to eject the drawer 53 with the ejector unit 1 from the position completely pushed in or closed on the furniture body 51, a user must act on the drawer from the outside in the direction of M2 in an oppressive manner. For this purpose, the ejector unit 1 has a so-called touch-latch functionality which knows a locked state which can be unlocked by moving the inserted drawer 53 closed on the furniture body 51 in the closing direction M2. This closing movement or the inward pushing of the drawer 53 in the direction of M2 takes place until reaching a stop position corresponding to a front gap, which in the closed state of the drawer 53 in particular by a distance between an inside of the drawer front 55 and a front end or the side walls 56 of the furniture body 51 is predetermined. The front gap is usually a few millimeters, for example, about 1 to 10 millimeters.

Accordingly, the unlocking of the ejector unit 1 is tuned such that a closing movement of the drawer 53 in Direction M2 of a few millimeters or at most by the amount of the front gap is sufficient to specify the unlocking and thus the power assisted ejection of the drawer 53 safe.

Starting from the basic position according to FIG. 3 the ejector unit 1 is moved with the drawer 53 in the direction M2. Since the set screw 22 is present on the driver 23, the ejector 5 is moved relative to the base plate 2 in the direction P1, whereby a contact portion 44 presses on the ejector 5 against the trigger 6 and pushes it in the direction P1 accordingly. The trigger 6 is limited linearly in the direction of P1 and P2 slidably provided on the base plate 2, usually by a few millimeters or less than the dimension of the front gap.

The trigger 6 is preferably coupled directly to the locking member 7, which is designed as a flap 43, such that the linear release movement of the trigger 6 in the direction P1, the flap 43 in a rotational movement about a pivot axis D is added. For rotation or pivoting of the flap 43, this has on the underside a line-shaped elevation, which is convexly bent outward or projecting downwards, which lies suitably in a correspondingly complementary concave-shaped or recessed straight groove in the base plate 2.

By the rotational movement, the flap 43 is released from a locking position, in which the flap 43 is urged by a trained as a leaf spring 49 spring member. In the locked state of the ejector unit 1, the flap 43, which is in the locking position, blocks the guide lever 34 or the lever cap 40 such that the energy accumulator 3 remains in its charged state.

With the rotational movement of the flap 43, the blockage of the guide lever 34 is released. The lever attachment 40 with the prestressed by a leg spring 60 locking element 41 come when moving past the flap 43 in such Appendix, that the locking element 41 is pressed against the spring force of the leg spring 60 on the lever cap inside.

The protruding on the lever cap 40 locking element 41 moves with the pivoting operation of the guide lever 34 below the flap 43 of this past and leads initiated by the trigger 6 rotational movement of the flap 43 about the pivot axis D without interruption. As a result, a rotational angle of the flap 43 is advantageously increased from the locking position. By the movement of the lever cap 40 under the flap 43 over and continued by the swinging out locking element 41, the ejector unit 1 is unlocked safely. For this purpose, a comparatively very small linear release movement of the trigger 6 in the direction P1 is advantageously necessary. By the leaf spring 49, the cap 43 is then pushed back into its locked position.

When tensioning the energy accumulator 3 comes that, swung out on the lever cap 40, existing locking element 41 again in abutment with a front edge of the flap 43. The locking element 41 deviates against the spring force of the leg spring 60 back so that it so far on an edge of the lever cap 40th sunk that the guide lever 34 can pivot past the flap 43 with the lever cap 40.

Behind the flap 43, the locking element 41 is swung out again by the spring force of the leg spring 60. After the clamping operation, the guide lever 34 is pressed with the protruding locking element 41 against the locking spring 43 held by the leaf spring 49, whereby the energy accumulator 3 is in the locked state.

The rotational movement of the flap 43 of the ejector unit 1 or the device 58 is transmitted via a synchronous rod 61, which is arranged non-rotatably on the flap 43, on a second advantageous equivalent device 62, which is arranged on the drawer 53.

Advantageously, the synchronizing rod 61 connects the locking member 7 with a second locking member provided on the second device 62. The two locking members are thus motion-coupled directly and / or synchronously. This represents a contrary principle of synchronization to a connection between trigger elements of two ejector devices on a furniture part. <U> REFERENCE LIST: </ u> 1 ejector 36 pivot 2 baseplate 37 pivot 3 power storage 38 pivot 4 coupling device 39 pivot 5 ejector 40 Lifting run rate 6 trigger 41 locking element 7 locking member 42 stop element 8th Front gap setting arrangement 43 flap 44 Contact section 9 cover member 45 casing 10 spiral spring 46 operating section 11 spiral spring 47 wall section 12 The End 48 wall 13 fixed bearing 49 leaf spring 14 bearing part 50 Furniture 15 adjusting part 51 furniture body 16 operating section 52 guide means 17 The End 53 drawer 18 mover 54 drawer base 19 guide contour 55 drawer front 20 linear guide 56 Side wall 21 Contact section 57 Drawer rear wall 22 screw 58 contraption 23 takeaway 59 Body side wall 24 latch member 60 Leg spring 24a spigot 61 synchronous rod 25 guideway 62 contraption 26 stop element 63 linear guide 27 guideway 28 - 29 contact section 30 clamping lever 31 pivot 32 holding member 33 spring element 34 guide lever 35 connecting element

Claims (11)

Device (1, 58, 62) for moving a movable furniture part (53) in an opening direction with respect to a furniture body (51) of a piece of furniture (50), the movable furniture part (53) being guided by guide means (52) in the opening direction and in one of the opening direction opposite closing direction can be brought, wherein the device (1, 58, 62) has a force storage device (3), so that with the mounted on the furniture (50) device (1, 58, 62), the movable furniture part (53) at an opening operation under the action of the energy storage device (3) in the opening direction can be brought, wherein a movement of the movable furniture part (53) in the closing direction, a charging process of the energy storage (3), and wherein the charging process by a power transmission from the ejector (5) via a coupling device (4) takes place on the energy store (3), characterized in that the coupling device (4) has a guide lever (34), a connecting element (35) and a tensioning lever (3 0), that the connecting element (35) and the clamping lever (30) are arranged on the guide lever (34) that during the charging process of the energy accumulator (3) a translation of the force of the ejector (5) via the coupling device (4) on the Power storage (3) takes place. Device (1, 58, 62) according to claim 1, characterized in that a first articulation point (37) of the connecting element (35) and a first articulation point (36) of the clamping lever (30) are formed such that these at an opening and / or closing operation of the movable furniture part (53) describe a circular movement in a plane of movement of the coupling device (4). Device (1, 58, 62) according to one of the preceding claims, characterized in that on the connecting element (35) and on the clamping lever (30) a second articulation point (31, 38) is formed, wherein the connecting element (35) and the clamping lever ( 30) are arranged at second articulation points (31, 38) on the device (1, 58, 62) such that at a Opening and / or closing operation of the movable furniture part (53) every second articulation point (31, 38) is moved parallel to the opening and / or closing direction of the movable furniture part (53). Device (1, 58, 62) according to one of the preceding claims, characterized in that the coupling device (4) is designed such that a translation of the force of the ejector (5) via the coupling device (4) on the energy storage device (3) changeable is. Device (1, 58, 62) according to one of the preceding claims, characterized in that the coupling device (4) is designed as a cam gear. Device (1, 58, 62) according to one of the preceding claims, characterized in that the guide lever (34) on the housing (2, 9) of the device (1, 58, 62) is arranged. Device (1, 58, 62) according to one of the preceding claims, characterized in that a longitudinal axis of the clamping lever (30) to a first lever axis of the guide lever (34) has a first angle, that a longitudinal axis of the connecting element (35) to a second Lever axis of the guide lever (34) has a second angle, wherein the first and the second angle during the charging of the force accumulator (3) due to the design of the coupling device (4) decrease. Device (1, 58, 62) according to one of the preceding claims, characterized in that the coupling device (4) is designed such that the first angle in each position of the coupling device (4) is greater than the second angle. Device (1, 58, 62) according to one of the preceding claims, characterized in that the coupling device (4) is designed such that the Power transmission ratio of the coupling device (4) during the loading process of the movable furniture part (53) increases at the end of the charging process. Device (1, 58, 62) according to one of the preceding claims, characterized in that the energy accumulator (3) is designed such that it acts directly and directly on the ejector (5) during the opening process of the movable furniture part (53). Furniture (50) with a device (1, 58, 62) according to one of the preceding claims.

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