Device for moving a movable part of furniture, and furniture with a device for moving a movable part of furniture

Description

[0001] The invention relates to a device for moving a movable part of furniture according to the preamble of claim 1 and to a piece of furniture with a device for moving a movable part of furniture. State of the art

[0002] Various embodiments of a device for moving a movable furniture part relative to a furniture carcass are known from the prior art. In these embodiments, the movable furniture part can be moved by means of guides in an opening direction and in a closing direction opposite to the opening direction. The devices include a power storage device. Under the action of the power storage device, it is possible to eject the movable furniture part in the opening direction via an ejector, i.e., to move it into an open position. Such a device is known, for example, from WO 2014 / 165873 A1.

[0003] The energy storage unit can be charged both when the movable part of the furniture is fully opened and when it is closed in relation to the furniture body. Purpose and advantages of the invention

[0004] The invention is based on the objective of providing a device for moving a movable part of furniture or a piece of furniture in which the charging process of a power storage device is improved.

[0005] This problem is solved by the features of claim 1.

[0006] The dependent claims specify advantageous and expedient further developments of the invention.

[0007] The invention relates to a device for moving a movable furniture part in an opening direction in relation to a furniture body of a piece of furniture, wherein the movable furniture part can be moved by means of guide means in the opening direction and in a closing direction opposite to the opening direction and wherein the device has a power storage device, so that with the device mounted on the furniture the movable furniture part can be moved into an opening position by means of an ejector under the action of the power storage device during an opening process.

[0008] The core of the invention lies in the fact that a coupling arrangement is provided which is effective between the ejector and the energy storage device during the charging process, and that the ejector is designed in such a way that it couples with the coupling arrangement via a switching element in the area of ​​the end of a path during the opening process.

[0009] This measure makes it possible to ensure that the ejector, via the coupling arrangement with the power storage device, is in operative contact with the power storage device for a preferential power transmission from the ejector to the power storage device during a closing movement of the movable furniture part after an opening of the movable furniture part.

[0010] The coupling arrangement amplifies the charging force acting on the ejector and transferring it to the energy storage device. This is achieved, for example, through an amplification effect via a lever arrangement within the coupling mechanism.

[0011] The ejector represents an opening process of the movable furniture part in direct contact with the energy storage device, with no coupling arrangement active during this phase. This means the energy storage device acts directly, without the intervening coupling arrangement and thus without any force reduction that would otherwise be effective in this direction. Instead, the force is transferred directly from the energy storage device to the movable furniture part, specifically via the ejector.

[0012] For example, the coupling arrangement comprises several levers that are operatively connected to each other. The movable piece of furniture could be, for example, a drawer or a cabinet door.

[0013] In a further preferred embodiment of the invention, the switching element on the ejector is designed in such a way as to the device that the ejector can be brought into operative connection with the coupling arrangement for a charging process of the energy storage device when a driver to the ejector assumes a predetermined position.

[0014] For example, the ejector can be brought into operative contact with the coupling arrangement if a driver of the guide means on the furniture body or on the movable furniture part, or a driver attached directly to the furniture body, leaves the ejector during the opening process.

[0015] Advantageously, the switching element is designed on the ejector in such a way that it interacts with the driver in such a way that, during a movement in the opening direction, the ejector is carried along by the driver.

[0016] Advantageously, the switching element is further designed on the ejector in such a way that the switching element can only couple with the driver in an opening movement of the movable furniture part.

[0017] It is also conceivable that the switching element is located on the coupling assembly.

[0018] Furthermore, it is advantageous if the ejector assumes a locking position with the coupling arrangement when the ejector returns from an end position during the opening process to a waiting position in the closing direction.

[0019] For example, the waiting position forms a starting position for the movement of the ejector during the closing process of the movable furniture part to charge the energy storage device via the coupling arrangement, especially when the ejector comes into contact with the driver.

[0020] The ejector can reach the waiting position, for example, when the driver leaves the ejector, which can be achieved by appropriate positioning of the switching element, for example via a cam guide, and then travels a predetermined distance, especially a few mm, in the closing direction until the switching element comes into operative contact with the coupling arrangement.

[0021] In a further advantageous embodiment of the invention, the ejector is under a preload in the waiting position.

[0022] The ejector may be under pressure in the waiting position.

[0023] Advantageously, the entire coupling arrangement is in the waiting position under a preload; in particular, a coupling element, for example a lever, is under a pressure-loaded preload.

[0024] Furthermore, it is preferred if the ejector is coupled to the coupling arrangement for a loading process in such a way that a pressure force is transmitted from the ejector to the coupling arrangement.

[0025] In this way, the entire system of ejector, coupling arrangement and energy storage is integrated into one unit. e.g. slightly pressure-loaded ready position for charging the energy storage device, so that without any "free movement" the system can immediately transfer a force from the driver to the energy storage device, thereby avoiding, for example, clicking noises or other noises that occur when a "loose" system is quickly brought into preload.

[0026] Furthermore, it is preferred if the switching element has a hook section that serves as a stop for a driver in order to move the ejector into a final position during the opening process.

[0027] This measure ensures the ejector is positioned unambiguously. It can preferably only detach from a drive pin once it has reached its final position.

[0028] In this state, the hook section with which the driver is in contact is advantageously moved away, so that the driver can come out of engagement with the ejector.

[0029] The appropriate positioning of the switching element, particularly its hook section, on the ejector can be achieved, for example, by moving the switching element along a guide track, such as a guide cam. This ensures that the position of the switching element relative to the ejector is positively controlled; that is, a predetermined position of the ejector results in a predetermined position of the switching element on the ejector.

[0030] Furthermore, it is preferred if the switching element is pivotably arranged on the ejector.

[0031] This procedure allows the switching element to be disengaged from or engaged with a driver by means of a simple pivoting movement.

[0032] On the other hand, the switching element in a pivoting position can ensure a coupling of the coupling arrangement with the ejector, for example when the ejector returns from its end position during the opening process to a waiting position in the closing direction.

[0033] Advantageously, the switching element pivots in such a way that a certain return travel of the ejector is allowed, but then the ejector comes into contact with an element of the coupling arrangement through the appropriately positioned switching element, and further movement is only possible by charging the energy storage device, for example by tensioning springs in the energy storage device.

[0034] In a preferred embodiment of the invention, the switching element is a latching element. A latching element can be easily pivoted, particularly on the ejector, and its position can be controlled accordingly. Furthermore, to control the switching element, it is proposed that, during movement of the ejector, the switching element is guided by guide means on a base part.

[0035] For example, the switching element, in particular the latching element, is guided or moved into a predetermined desired position by a cam track when the ejector moves. The cam track is preferably formed on the base part.

[0036] Furthermore, it is advantageous if the guidance system comprises a closed track.

[0037] This measure allows the folding and unfolding of the switching element, in particular the latching element, to be controlled in a simple way during a "back and forth movement" of the ejector, so that the latching element assumes a desired predetermined position in every movement position of the ejector, whereby the positioning is repeated after a completed, for example linear, back and forth movement, preferably in a circular direction on the path. Description of the exemplary implementations

[0038] Further features and advantages of the invention are explained in more detail with reference to exemplary embodiments shown schematically in the figures.

[0039] In detail: Figure 1 shows a piece of furniture according to the invention in perspective from an oblique top view with a drawer in the fully open state on a furniture body; Figure 2 shows a device according to the invention without a cover component in exploded view; Figures 3 to 8 show the device according to Figure 2 in the assembled state in a top view of a first main page in different operating states and Figure 9 the device according to Figure 5 with the cover component viewed from below at an oblique angle, looking towards a second main side of the device.

[0040] A piece of furniture 50 according to the invention, comprising a box-shaped furniture body 51 and a drawer 53 movably guided by means of guide means 52, is in Figure 1The drawer 53 comprises a drawer base 54, a drawer front 55, two opposing side walls 56, and a drawer back wall 57. For guiding the drawer 53, two synchronously acting guide elements 52 are provided between each side wall 56 of the drawer 53 and a corresponding cabinet side wall 59. A device 58 according to the invention (shown in dashed lines) for moving or ejecting the furniture part designed as a drawer 53 in the opening direction M1 is arranged on an underside of the drawer base 54.

[0041] Figure 2 The exploded view of the device 58, which is designed as an ejector unit 1 for the drawer 53, is shown.

[0042] The ejector unit 1 serves to force-assisted ejection of the drawer 53 over a first partial section of the opening movement of the drawer 53 from a closed position relative to the furniture body 51 into the opening direction M1 of the drawer 53.

[0043] The drawer 53 is mounted on the furniture body 51 so as to be slidable in the directions M1 and M2 via the guide elements 52, for example, two identical partial or full extension slides. The ejector unit 1 can alternatively be arranged on the furniture body 51 or on the guide elements 52 of the furniture 50.

[0044] The ejector unit 1 includes, among other things, a base plate 2, a power storage device 3, a coupling device 4, an ejector 5, a release element designed as a trigger 6 and a locking device 7.

[0045] A housing of the ejector unit 1 comprises the base plate 2 and a cover component 9, which consists of Figure 9 The ejector unit 1 can be arranged on the underside of the drawer base 54 and / or on the guide means 52 via the housing or via the cover component 9 and / or the base plate 2.

[0046] The base plate 2 incorporates retaining sections, guide contours, stop elements, and / or receiving sections for connecting the individual components of the ejector unit 1. The base plate 2 is essentially designed as a rectangular, elongated, or strip-shaped component with a relatively low height h of, for example, approximately 5 to 15 millimeters. Furthermore, the base plate 2 has a width b of approximately 4 to 10 centimeters and a length g.

[0047] According to the illustrated embodiment, the energy storage device 3 comprises two identical spiral springs 10 and 11 arranged in parallel, forming a spring assembly. At a first end 12 of the energy storage device 3, the spiral springs 10 and 11 are arranged on an adjustable fixed bearing 13. The fixed bearing 13 comprises a movable bearing element 14, on which the spiral springs 10 and 11 are detachably but firmly mounted, and an adjusting element 15 with an operating section 16, by means of which a user can variably and fixedly adjust the position of the end 12 of the energy storage device 3 from the outside. This advantageously allows the force exerted by the energy storage device 3 on the drawer 53 to be preset during the opening process of the drawer 53.

[0048] At a second end 17 of the energy storage device 3, the corresponding ends of the coil springs 10, 11 are attached to a slide-like movement element 18. The slide-like movement element 18 is guided linearly on the base plate 2 via a corresponding guide contour 19 in one direction of movement P1 and in the opposite direction of movement P2.

[0049] The directions of movement P1 and P2 of the movement element 18 (see Figures 2 , 3 ) run parallel to the opening direction M1 of the drawer 53 and an opposite closing direction M2.

[0050] If the ejector unit 1 is fixed in position 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 direction P1 and the closing direction of the drawer 53 corresponds to direction P2.

[0051] In the following, it is assumed that the ejector unit 1 is mounted on the drawer bottom 54.

[0052] The Figures 3 , 7 , 8 The ejector unit 1 is shown in a tensioned state of the energy storage device 3, in which the spiral springs 10, 11 are elongated or tensioned, the moving element 18 is offset towards P1 relative to a position withdrawn towards P2 on the base plate 2 and is held in a tensioned position.

[0053] The Figures 5 , 6 The ejector unit 1 is shown in an unloaded ground state of the energy storage device 3, in which the spiral springs 10, 11 are still under tension, but with a smaller amount and have a length L1.

[0054] In the tensioned state of the energy storage device 3, the spiral springs 10, 11 have a length L2 which is greater than L1.

[0055] The movement element 18 has a holding element 32 with a stop element 26, which is in contact with an ejector 5 during the ejection process of the furniture part.

[0056] Via the coupling device 4, the energy storage device 3 or the motion element 18 is preferably only operatively connected to the ejector 5 during the closing process of the drawer 53. The ejector 5 is, in particular, exclusively linearly movable or reciprocating parallel to the direction of movement of the motion element 18 in directions P1 and P2. For this purpose, a linear guide 20 is formed on the base plate 2, which is aligned with guide sections, e.g., on one side of the ejector 5.

[0057] The opening process of the drawer 53, initiated by the ejector unit 1, takes place exclusively via a direct connection between the energy storage device 3 and the moving element 18, which moves towards P2, and the ejector 5. For this purpose, the stop element 26 is formed on the moving element 18. This stop element is advantageously designed to be elastic, thus preventing or at least dampening any noise that might be disturbing to a user when the moving element 18 strikes the ejector 5 during the opening process of the drawer 53. Figure 3 , 4 , 5 ).

[0058] A front gap adjustment device 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 interacts with an internal thread on the housing 45. By manually turning an operating section 46 of the adjusting screw 22, a user can adjust the position of the contact section 21 of the adjusting screw 22 in the direction of P1 or P2, depending on the direction of rotation. The adjusting screw 22 is designed to be self-locking relative to the housing 45. By setting the position of the adjusting screw 22, a dimension of the front gap between the drawer front 55 of the drawer 53, which is closed against the furniture carcass 51, and the end faces of the furniture carcass 51 can be predetermined.

[0059] The contact section 21 of the adjusting screw 22 rests against a driver 23 when the energy storage device 3 is tensioned or charged, and this driver forms a stop for the contact section 21 in corresponding operating states. The Figures 3 to 8 The driver 23, indicated only by dashed lines, may, for example, be present on a fixed rail of the guide means 52 or be attached to the furniture body 51 if the ejector unit 1 is arranged on the drawer 53.

[0060] If, on the other hand, the ejector unit 1 is arranged on the furniture body 51 or on a fixed part of the guide means 52 of the furniture 50, the driver 23 can be located on the drawer 53 and thus be movable relative to the furniture body 51.

[0061] Starting from the initial position of ejector unit 1 according to Figure 3 a locking mechanism on ejector unit 1 was released, which Figure 4As shown and explained in more detail below, the tensioned or charged energy storage device 3 pulls the movement element 18 towards P2, which pushes or moves the ejector 5 towards P2 relative to the base plate 2 via the stop element 26.

[0062] As soon as the ejector 5 moves towards P2 on the base plate 2, a latch component 24 of the ejector unit 1, pivotably mounted on the ejector 5, is raised from a pivoted position fully recessed towards an outer edge of the base plate 2 according to Figure 4 brought into a pivoted position with a nose partially protruding beyond the outer edge of the base plate 2 ( Figure 5 ), which is achieved via a loop-shaped closed guide track 25 in the base plate 2 and a guide pin 24a engaging therein on the latch component 24.

[0063] To illustrate the latch component 24, its outline, which is obscured by other components, in particular by the ejector 5, is shown in the Figures 3 to 8 Indicated by dashed lines.

[0064] In the Figure 5 In the basic state shown, the energy storage device 3 is in an end position of the discharge state, whereby the energy storage device 3 cannot move the ejector 5 further in the direction of P2.

[0065] The ejector 5 is subsequently moved towards P2 relative to the base plate 2 due to the kinetic energy of the drawer 53, resulting from the preceding ejection movement, and / or by manual movement of the drawer 53 in the opening direction M1 by a user. This is possible because the latch component 24, which is pivoted outwards on the ejector 5, abuts the driver 23, causing the ejector 5 to reach its maximum end position towards P2 on the base plate 2 during the further movement of the drawer. Upon reaching this end position on the ejector 5, the latch component 24 is fully pivoted back in, a process determined by the interaction of the guide track 25 with the guide pin 24a engaging therein on the latch component 24.

[0066] If the drawer 53 is moved further in the opening direction M1 after an unloading process of the energy storage device 3, the ejector unit 1 separates from the driver 23 and, in particular, the contact between the driver 23 and the contact section 21 of the adjusting screw 22 is also broken ( Figure 6 ).

[0067] From the end position described above, which the ejector only assumes briefly, the ejector 5 is pushed towards P1, for example by a few millimeters, by spring elements 33 on the base plate 2. The spring elements 33 have a comparatively low force compared to the coil springs 10, 11 of the energy storage unit 3. With the movement of the ejector 5 towards P1 by the force of the spring elements 33, a contact section 29 of the latch component 24 in a waiting position of the ejector 5 is brought into direct, backlash-free contact with a bearing pin 31 of a clamping lever 30 of the coupling device 4 ( Figure 6The bearing pin 31 is arranged at a first end of the clamping lever 30 and can move freely along, for example, a linear guide track 27 and / or a linear guide 63, which is formed on the ejector 5, particularly during an opening process of the drawer 53, until the latching component 24 holds the bearing pin 31 and / or the clamping lever 30 in direct, backlash-free contact with the ejector 5.

[0068] The waiting position of ejector 5, which is in Figure 6 The figure shown also represents a starting position of the ejector 5 for a charging process of the energy storage device 3 via the coupling device 4.

[0069] 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 one end to the guide lever 34 via a bearing pin 36. The connecting element 35 is also articulated at one end to the guide lever 34 via a bearing pin 37 spaced apart from the bearing pin 36, and at its first end to the movement element 18 via a further bearing pin 38. The guide lever 34 is movable at one end via a bearing pin 39, in particular pivotably arranged on the base plate 2. The bearing pin 39 is preferably received on both the base plate 2 and the cover component 9.

[0070] 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 passes through the bearing pins 36, 39.

[0071] 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.

[0072] The guide lever 34 of the coupling device 4 comprises a lever attachment 40 at a second end. A locking element 41 and a stop element 42 are formed on the lever attachment 40.

[0073] The final position of the discharge state of the energy storage device 3 ( Figure 5The position of the guide lever 34 is determined by the stop element 42 of the guide lever 34 abutting a wall section 47 on a web-like wall 48 of the base plate 2. The wall section 47 is formed, for example, by an annular section of a damping element. When the stop element 42 of the guide lever 34 is in contact with the wall section 47 after a discharge process of the energy storage device 3, a tensile force in direction P2 is transmitted from the movement element 18 via the connecting element 35 to the guide lever 34 due to a remaining preload of the coil springs 10, 11. Due to the rigid design of the coupling device 4, or the abutment of the stop element 42 against the wall section 47, the movement element 18 is prevented from moving further in direction P2, whereby the energy storage device 3 is held without play in the end position of the discharge state with the movement element 18.

[0074] In particular, the stop element 42 and / or the wall section 47 can be designed to be elastic or damping, thereby reducing or preventing impact noise.

[0075] Due to its design, the guide lever 34 can transmit a force with a transmission from the tensioning lever 30 to the connecting element 35 when tensioning the energy storage device 3.

[0076] The transmission ratio is formed, firstly, by the ratio of the distance between the bearing pins 39 and 36 to the distance between the bearing pins 39 and 37 on the guide lever 34, and secondly, by the combined circular and linear movement of the clamping lever 30 and / or the connecting element 35 relative to each other during the charging process of the energy storage device 4.

[0077] The elements of the coupling device 4 can move as follows due to their arrangement on the ejector unit 1: The bearing pin 31 and thus the first end of the clamping lever 30 can, due to its bearing in the guide track 27, move 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.

[0078] The bearing pin 38, and thus the first end of the connecting element 35, can, due to its bearing on the slide-like movement element 18 and thus advantageously in the guide contour 19, move exclusively parallel to a direction of movement of the movement element 18 or of the ejector 5, in particular parallel to the direction of movement of the movable furniture part 53.

[0079] The bearing pin 36, thus the second end of the clamping lever 30, can, due to its bearing at the second end of the guide lever 34, move exclusively in a circular path around a center of rotation of the bearing pin 39 of the guide lever 34.

[0080] The bearing pin 37 of the connecting element 35, and thus the second end of the connecting element 35, can, due to its bearing in a central area of ​​the guide lever 34, move exclusively in a circular path around a center of rotation of the bearing pin 39 of the guide lever 34.

[0081] Due to its design described above, the coupling device 4 can transmit a force for tensioning the energy storage device 3 from the ejector 5 via the tensioning lever 30 and the guide lever 34 to the connecting element 35 and thus to the energy storage device 3. In particular, the coupling device 4 reduces the force exerted by the ejector 5 on the energy storage device 3. This means that when loading the energy storage device 3, a user has to apply less force to the ejector 5 than would be required if they wanted to load the energy storage device 3 without reduction or if they were to pull the end 17 of the energy storage device 3 directly towards P1.

[0082] The beginning and end of the charging process of the energy storage device 3 or of the coil springs 10 and 11 are in the Figure 6 and 7 illustrated.

[0083] The tensioning of the energy storage device 3 occurs with a movement of the drawer 53 during closing or during a portion of the closing movement of the drawer 53. The starting position of the ejector unit 1, in which it is prepared to tension the energy storage device 3 and awaits a closing operation of the drawer, is shown. Figure 6 .

[0084] When the drawer 53 is closed, for example by a user from the outside, the ejector unit 1 moves towards M2 towards the driver 23. The charging process of the energy storage device 3 begins when the contact section 21 of the adjusting screw 22 of the ejector 5 strikes the driver 23. For example, due to the inertia of the drawer 53 relative to the base plate 2, the ejector 5 is moved towards P1 by striking the driver 23.

[0085] By coupling the ejector 5 via the coupling device 4 with the energy storage device 3, the movement element 18 of the energy storage device 3 is also moved in the direction of P1 relative to the base plate 2 and the second end 17 of the coil springs 10, 11 is moved in the direction of P1 and thus the coil springs 10, 11 are stretched.

[0086] At the end of the tensioning process of the energy storage device 3, the ejector 5 is in a loading end position; this is in Figure 7 shown. In the tensioned state of the energy storage device 3, the ejector unit 1 is in a locked state.

[0087] In the locked state, the locking element 41 of the coupling device 4 and the locking element 7, which is designed as a flap, determine a locking state, whereby an unloading movement of the coupling device 4 is blocked by the locking element 7.

[0088] The tensioning of the energy storage device 3 is fully completed before, for example, a soft-close mechanism for the power-assisted retraction of the drawer 53 into the fully closed position on the furniture body 51 becomes effective. The soft-close mechanism is not part of the ejector unit 1 and is integrated, for example, into the guides 52 or the partial or full extensions.

[0089] After tensioning the energy storage device 3, the ejector 5 is moved towards P1 relative to the base plate 2 by the further closing movement of the drawer 53 due to its contact with the driver 23. This releases the operative connection between the latch component 24 of the ejector 5 and the bearing pin 31 of the tensioning lever 30. This occurs through the interaction of the guide track 25 with the guide pin 24a on the latch component 24, whereby the latch component 24 is pivoted away from the bearing pin 31 by the guidance of the guide pin 24a in the guide track 25. Figure 8In this state, the ejector 5 is decoupled from the coupling device 4 and can be moved in the direction of P1, in particular by means of an automatic retraction mechanism, until the drawer 53 is completely closed against the furniture body 51 and the ejector 5 is in the home position at the trigger 6 according to Figure 3 is pending.

[0090] In the home position of ejector unit 1 according to Figure 3 Is it possible for a user to manually pull drawer 53 in the opening direction M1 without an ejector function or without first releasing the locking state? In this case, the energy storage device 3 of the ejector unit 1 remains unactuated or charged.

[0091] To eject the drawer 53 with the ejector unit 1 from the fully retracted or closed position on the furniture carcass 51, a user must apply external pressure towards the drawer in the direction of M2. For this purpose, the ejector unit 1 features a touch-latch function, which has a locked position that can be unlocked by moving the retracted drawer 53, which is closed on the furniture carcass 51, in the closing direction M2. This closing movement, or the inward pushing of the drawer 53 towards M2, continues until a stop position is reached, corresponding to a front gap. This front gap, when the drawer 53 is closed, is defined in particular by the distance between an inner surface of the drawer front 55 and a front end or the side walls 56 of the furniture carcass 51. The front gap is typically a few millimeters, for example, approximately 1 to 10 millimeters.

[0092] Accordingly, the unlocking of the ejector unit 1 is designed such that a closing movement of the drawer 53 in the direction of M2 of a few millimeters or at most by the amount of the front gap is sufficient to reliably trigger the unlocking and thus the power-assisted ejection of the drawer 53.

[0093] Starting from the basic position according to Figure 3 The ejector unit 1 is moved towards M2 with the drawer 53. Since the adjusting screw 22 rests against the driver 23, the ejector 5 is moved relative to the base plate 2 towards P1, causing a contact section 44 on the ejector 5 to press against the trigger 6 and thus push it towards P1. The trigger 6 is linearly displaceable on the base plate 2 to a limited extent in the directions of P1 and P2, typically by a few millimeters or less than the front gap.

[0094] The trigger 6 is preferably directly coupled to the locking element 7, which is designed as a flap 43, such that the linear release movement of the trigger 6 in the direction of P1 causes the flap 43 to rotate about a pivot axis D. This rotation releases the flap 43 from a locking position into which it is forced by a spring element designed as a leaf spring 49. 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 attachment 40 such that the energy storage device 3 remains in its charged state.

[0095] The rotational movement of the flap 43 releases the blockage of the guide lever 34. Preferably, the locking element 41, pre-tensioned by a torsion spring 60, pivots out on the lever attachment 40.

[0096] The locking element 41, projecting from the lever attachment 40, moves past the flap 43 below it as the guide lever 34 pivots, thus continuously transmitting the rotational movement of the flap 43 about the pivot axis D initiated by the trigger 6. This advantageously increases the rotational angle of the flap 43 from the locked position. The ejector unit 1 is reliably unlocked by the movement of the lever attachment 40 past the flap 43 and by the pivoting locking element 41. This requires a comparatively very small linear release movement of the trigger 6 in the direction of P1. The leaf spring 49 then forces the cap 43 back into its locking position.

[0097] When the energy storage device 3 is tensioned, the locking element 41, which is pivoted out on the lever attachment 40, again comes into contact with a leading edge of the flap 43. In doing so, the locking element 41 retracts against the spring force of the torsion spring 60, so that it is recessed so far against an edge of the lever attachment 40 that the guide lever 34 with the lever attachment 40 can pivot past the flap 43.

[0098] Behind the flap 43, the locking element 41 is pivoted out again by the spring force of the torsion spring 60. After the tensioning process, the guide lever 34 with the protruding locking element 41 is pressed against the flap 43, which is held in a locking position by the leaf spring 49, thus locking the energy storage device 3.

[0099] The rotary movement of the flap 43 of the ejector unit 1 or of the device 58 is transmitted via a synchronizing rod 61, which is arranged non-rotatably on the flap 43, to a second advantageously co-acting device 62, which is arranged on the drawer 53.

[0100] Advantageously, the synchronizing rod 61 connects the locking element 7 with a second locking element located on the second device 62. The two locking elements are thus directly and / or synchronously coupled in their movement. This represents a synchronization principle contrary to that used for connecting the release elements of two ejector devices on a furniture component. Reference symbol list: 1 ejector unit 32 Holding device 2 Base plate 33 spring element 3 Energy storage 34 Guide lever 4 Coupling device 35 Connecting element 5 ejector 36 bearing journal 6 trigger 37 bearing journal 7 locking mechanism 38 bearing journal 8 Front gap adjustment arrangement 39 bearing journal 40 Lever attachment 9 Cover component 41 locking element 10 coil spring 42 Stop element 11 coil spring 43 flap 12 End 44 Contact section 13 Fixed camp 45 Housing 14 bearing part 46 Control section 15 Control unit 47 Wall section 16 Control section 48 Wall 17 End 49 leaf spring 18 Movement element 50 Furniture 19 Leadership contour 51 Furniture carcass 20 Linear guide 52 Management tools 21 Contact section 53 Drawer 22 Adjustment screw 54 drawer bottom 23 drive 55 drawer front 24 Jack component 56 side wall 24a guide pin 57 Drawer back panel 25 Guide track 58 device 26 Stop element 59 Carcass side panel 27 Guide track 60 leg spring 28 - 61 Synchronizer rod 29 Plant section 62 device 30 Tension lever 63 Linear guide 31 bearing journal

Claims

1. Device (1) for moving a movable furniture part (53) in an opening direction in relation to a basic furniture structure (51) of an item of furniture (50), wherein the movable furniture part (53) by way of guide means (52) is capable of being put in the opening direction and in a closing direction which is counter to the opening direction, wherein the device (1) has a force accumulator (3) such that by way of the device (1) which is fitted to the item of furniture (50) the movable furniture part (53) in the case of an opening procedure under the action of the force accumulator (3) by way of an ejector (5) of the device (1) is capable of being put in an opening position, characterized in that a coupling assembly (4) which in the case of the charging procedure of the force accumulator (3) is effective between the ejector (5) and the force accumulator (3) is provided, so that an amplification of a charging force acting at the ejector (5) on the force accumulator (3) is achieved by way of the coupling assembly (4), and in that the ejector (5) is designed in a manner that the latter in the region of the end of the path thereof in the case of the opening procedure by way of a switch element (24) of the device (1) couples to the coupling assembly (4), wherein the force accumulator (3) is in direct contact with the ejector (5) during the opening procedure, and a force of the force accumulator (3) is transmitted directly, without any reduction of force, by way of the ejector (5) to the movable furniture part (53), and the coupling assembly (4) is not effective in this phase.

2. Device according to Claim 1, characterized in that the switch element (24) on the ejector (5) in relation to the device is configured in a manner that the ejector (5) is capable of being operationally connected to the coupling assembly (4) for a charging procedure of the force accumulator (3) when an entrainment element (23) assumes a predefined position in relation to the ejector (5).

3. Device according to one of the preceding claims, characterized in that the ejector (5) assumes an arrested position with the coupling assembly (4) when the ejector (5) in the case of the opening procedure returns in the closing direction from a terminal position to a standby position.

4. Device according to the preceding Claim 3, characterized in that the ejector (5) in the standby position is under a bias.

5. Device according to Claim 1, characterized in that the switch element (24) has a hooked portion which serves as a stop for an entrainment element (23), so as to be able to displace the ejector (5) to a terminal position in the case of the opening procedure.

6. Device according to one of the preceding claims, characterized in that the switch element (24) is pivotably disposed on the ejector (5).

7. Device according to one of the preceding claims, characterized in that the switch element (24) comprises a latch element (5).

8. Device according to one of the preceding claims, characterized in that the switch element (24) in the case of a movement of the ejector (5) is guided by guide means on a basic part (2).

9. Device according to the preceding Claim 8, characterized in that the guide means comprise a closed track (25).

10. Item of furniture (50) having a device according to one of the preceding claims.