EP3358989B1 - Movement device for drawers - Google Patents

Description

The invention relates to a movement device for drawers with a sliding mechanism, wherein a locking element can be moved from a retracted position into an open position or a partially open position by means of the sliding mechanism, wherein the sliding mechanism is held in the retracted position by means of an over-stroke mechanism, wherein the over-stroke mechanism has a switching element which is held by a locking member in the retracted position on a stop and can be lifted off the switching element in a first switching movement when an over-stroke is applied to the switching element.

Movement devices for drawers are used to simplify the operation of drawers. After applying an overstroke, the drawer can be moved from a closed position to an open position or a partially open position. As a rule, a lock is released after applying the overstroke. An energy storage device, such as a pre-tensioned spring, can then discharge, with the spring force being transferred to the drawer. The drawer can then be grasped and moved to an open position. In this way, drawer designs can be created that do not require a drawer handle. The drawer can be unlocked and opened simply by manually applying pressure to the drawer panel.

Particularly with wide drawer fronts, the problem is that the pressure must be applied in the area of the front where the movement device is mounted. For example, if a movement device is mounted on the left-hand side, it is recommended that the pressure be applied there as well. If the right-hand side of the front is pressed, the problem is that the movement device is sometimes not triggered. People have therefore switched to mounting movement devices on both sides of the drawer. There are also solutions where a movement device which is then synchronized to both sides of the drawer. Complex mechanisms are installed on the underside of the drawer.

Out of EP 2 279 680 A1 an opening and closing device for a drawer is known. A guide device is used which has a driver. The driver can be adjusted along a guide track against the pre-tension of a spring. In the closed position of the driver, it is held by a locking mechanism. When the locking mechanism is unlocked, the driver can be moved into an open position by means of the spring. This movement is used to move a drawer into the open position. A self-closing mechanism is also used, with which the drawer is automatically retracted when it is moved into the closed position.

WO 2013/096980 A1 discloses a drive device for a movable furniture part. Here too, an ejection device is installed in a furniture fitting, which serves to eject the movable furniture part. In order to be able to pull the furniture part in the opposite direction, a force accumulator is used.

WO 2013/073489 A1 discloses an ejection device for a drawer with an ejection spring that pre-tensions a driver. In the closed position of the drawer, the driver is locked in a heart curve. By applying an overstroke to the drawer, the driver is unlocked and the drawer is then ejected. The device from the WO 2007/028177 A1 known ejection device.

It is an object of the invention to provide a movement device which triggers reliably, in particular even with wide drawer fronts.

This object is solved by the features of claim 1.

In addition to the release direction used in the prior art, which usually runs opposite to the opening direction of the drawer, according to the invention an additional movement direction of the locking member is superimposed, namely, for example, transverse to the over-stroke direction. In this way, the switching path required to unlock the locking member can be significantly reduced. This ensures that the movement device is triggered even with short strokes. Even if a movement device is only installed on one side of wide drawer fronts, it can still be reliably switched, even if the pressure is exerted on the side of the panel opposite the mounting position. In this way, the parts and assembly effort can also be significantly reduced. Of course, within the scope of the invention it is also possible to mount movement devices on both sides of the drawer, for example if particularly heavy drawers are to be moved. A particularly reliable function is guaranteed according to the invention if it is provided that the switching lever is held spring-loaded on the stop and that the preload is reduced or eliminated when the locking member moves from the retracted position to the offset position.

According to an advantageous embodiment of the invention, it can be provided that the path of the first switching movement is less than or equal to 1 mm. The drawer is then released after the first switching movement has been overcome, simply by switching the locking element transversely to the first switching movement. This switching sequence enables reliable triggering of the movement device, particularly for all drawer widths.

According to the invention, a step is provided next to the stop, into which the locking member is deflected and is disengaged from the stop. The step achieves a clear switching position for the locking member and prevents the locking member from accidentally returning to the locking position.

According to the invention, it is further provided that a deflection slope is provided which works together with a deflection part of the switching element, and that the switching element deflected into the shoulder can be deflected with the deflection slope transversely to the overstroke direction into a return area. When an overstroke is applied, the switching element switches into the shoulder and comes into contact with the deflection slope. It is thus forcibly adjusted in the shoulder so that a targeted deflection of the switching element into the return area can take place. In this way, the switching element is adjusted in a defined manner. Following the return area, the switching element can then, for example in one variant of the invention, be specifically moved out of the lock in order to be able to open the drawer.

Conversely, so that when the drawer is closed the switching element can be brought into its locking position in a targeted manner, a variant of the invention provides that a guide track is provided which has a deflection slope and that the deflection part cooperates with the deflection slope in order to move the switching element into the area of the stop.

A simple design results from the fact that the stop is part of a switching module, which forms a cavity into which the switching element can be inserted through an insertion area.

In particular, it can be provided that the switching element has a deflection section which is adjusted on a counter element when the switching element is moved in order to move the switching element into the pre-tension position. When the switching element is moved into the locking position, the pre-tension is built up. This means that this process is integrated into the normal movement sequence without additional measures having to be taken.

The switching element can be pivoted on a pivot bearing so that it can be moved reliably between the individual switching and setting positions.

A particularly preferred variant of the invention is such that the over-travel mechanism couples the ejection mechanism with a retraction mechanism. In this way, a movement device is created with which the drawer can not only be moved automatically from the closed position to the open position. Rather, it is also possible to close the drawer automatically from the open position or the partially open position to the closed position. In particular, it can be provided that an energy storage device, for example a retraction spring, is discharged to implement this closing movement. Furthermore, it can advantageously be provided that the closing movement is dampened with a damper.

To further simplify the structural design, the switching module can be coupled directly or indirectly to the retraction mechanism.

The object of the invention is also achieved with a method for moving a drawer from a retracted position into an open position or partially open position, wherein a locking element can be moved by means of a sliding mechanism, wherein the sliding mechanism is held in the retracted position by means of an overstroke mechanism, wherein a switching element rests against a stop in order to hold the switching element in the retracted position, and wherein the switching element is lifted off the stop when an overstroke is applied. According to the invention, it is provided that the locking element is displaced transversely to the overstroke direction when the overstroke is applied.

The invention is explained in more detail below with reference to embodiments shown in the drawings.

Figur 1:

Eine Bewegungseinrichtung für eine Schublade in Seitenansicht,

Figur 2:

Ein der Figur 1 entnommenes Detail,

Figur 3 und 4:

die Darstellung gemäß Figur 2 jedoch in einer veränderten Schaltdarstellung,

Figur 5 - 8:

Die Bewegungseinrichtung gemäß Figur 1 in verschiedenen Schaltstellungen,

Figur 9:

ein der Figur 8 entnommenes Detail in vergrößerter Darstellung,

Figur 10:

Eine weitere Schaltstellung der Bewegungseinrichtung,

Figur 11:

Ein der Figur 10 entnommenes Detail in vergrößerter Darstellung,

Figur 12 und 13:

Die Darstellung gemäß Figur 11, jedoch in einer veränderten Schaltstellung,

Figur 14:

Eine weitere Darstellung der Bewegungseinrichtung gemäß Figur 1,

Figur 15:

In vergrößerter perspektivischer Darstellung eine Teil-Baugruppe der Bewegungseinrichtung nach Figur 1,

Figur 16:

Die Bewegungseinrichtungen gemäß Figur 1 in einer speziellen Schaltstellung,

Figur 17 und 18:

Eine weitere Alternative einer Bewegungseinrichtung in Teildarstellung und Seitenansicht,

Figur 19:

Ein Einstellteil der Bewegungseinrichtung gemäß Figur 18 in verschiedenen perspektivischen Ansichten,

Figur 20:

Ein Detail der Bewegungseinrichtung nach Figur 18 in Seitenansicht.

They show:

Figure 1:

A movement device for a drawer in side view,

Figure 2:

One of the Figure 1 taken detail,

Figure 3 and 4:

the representation according to Figure 2 but in a modified circuit representation,

Figure 5 - 8:

The movement device according to Figure 1 in different switching positions,

Figure 9:

one of the Figure 8 taken detail in enlarged view,

Figure 10:

Another switching position of the movement device,

Figure 11:

One of the Figure 10 taken detail in enlarged view,

Figure 12 and 13:

The representation according to Figure 11 , but in a different switching position,

Figure 14:

Another illustration of the movement device according to Figure 1 ,

Figure 15:

In enlarged perspective view a partial assembly of the movement device according to Figure 1 ,

Figure 16:

The movement facilities according to Figure 1 in a special switching position,

Figure 17 and 18:

Another alternative of a movement device in partial representation and side view,

Figure 19:

An adjustment part of the movement device according to Figure 18 in different perspective views,

Figure 20:

A detail of the movement device after Figure 18 in side view.

Figure 1 shows a movement device with a housing 10, wherein the housing consists of two housing halves that are connected to each other. To illustrate the mechanics of the movement device, Figure 1 One half of the housing is not shown in order to provide an insight into the inner workings of the movement device. As this illustration shows, the housing 10 has a wall 11. Fastening receptacles 12 are arranged in the side areas of the wall 11. The fastening receptacles 12 Fastening screws can be passed through and used to screw the movement arrangement onto a piece of furniture, for example a drawer to be moved. The wall 11 is equipped with sliding guides, whereby the sliding guides in this case can be designed as webs. Furthermore, a guide 13 is provided on the housing 10, which can be designed in the form of a groove. It is also conceivable that instead of the groove, an openwork guide 13 is introduced into the wall element of the housing 10. The guide 13 has a guide section 13.4 that runs in the longitudinal direction of the housing 10. At its left-hand end, the guide section 13.4 merges into a parking section 13.1. The parking section 13.1 can be formed from an angled guide track geometry, as shown here. In particular, it can be designed with an undercut, as shown. A further parking section 13.2 is provided in the area between the parking section 13.1 and the opposite end of the guide section of the 13.4. This parking section 13.2 is intended as a lateral extension of the guide section of 13.4. In the area of this parking section 13.2, the guide section 13.4 has a spring part 13.3.

How Figure 1 shows, a slide 20 is arranged in the housing 10. The slide 20 can be moved in the longitudinal direction of the housing 10 on the sliding guides of the wall elements of the housing 10. The slide 20 has a carrier 21 which is equipped with guides 22. The guides 22 work together with the actuator 60. The slide has a projection 23. This can be molded in one piece in order to reduce the number of parts. The projection 23 forms a spring holder 24 and a damper holder 25. The left-hand end of a spring serving as an energy store 30 can be attached to the spring holder 24. The opposite end of the spring is attached to a spring holder 14 of the housing 10. A damper 130 is attached to the damper holder 25. In particular, a piston rod 132 of the damper 130 can be attached there. The damper 130 can be designed as a linear fluid damper. In particular, it can have a damper body 131, for example in the form of a cylinder. In the damper body 131, a piston can be mounted on the piston rod 132. against the pressure of the fluid held in the damper body 131. Advantageously, the fluid is air, so that the damper 130 is maintenance-free and. In particular, in the event of a leak, there is no risk of harmful fluid escaping, as is the case with oil dampers, for example.

The end of the damper 130 opposite the damper holder 25 is attached to a damper holder 16 on the housing side. The slide 20 also has a support bearing 26. A mandrel 26.3 protrudes from this support bearing 26, which can be molded onto the slide 20. An energy storage device designed as a spring is attached to this; the spring rests on the end of the support bearing 26. A pressure piece 26.2 is also held on the mandrel 26.3 so that it can move in the longitudinal direction of the mandrel 26.3. The pressure piece 26.2 is used to engage an actuator 60, as will be explained in more detail later.

The slide 20 also has an abutment 27. A spring 27.1 is mounted against this abutment 27. The opposite end of the spring 27.1 is placed against a positioning unit 110. In Figure 11 the positioning unit 110 is shown in an enlarged view. As can be seen from this illustration, the positioning unit 110 has a locking lever 111 which is pivotably mounted about a pivot bearing 112. Opposite the pivot bearing 112, the locking lever 111 has a locking hook 113. The positioning unit 110 also has a blocking piece 114 which is part of a slide. Furthermore, a projection 115 is provided on the slide and the slide also has a support section 116. By means of the support section 116, the slide is pre-tensioned against the spring 27.1. The slide of the positioning unit 110 is in Figure 11 horizontally adjustable in the image plane from left to right and vice versa. It can be pressed against the preload of the spring 27.1.

Figure 1 further shows that the slide 20 carries a locking part 28 on a projection 28.1. This locking part 28 works together with a holder 41, the holder 41 is guided linearly adjustable on a guide of the housing 10. The holder 41 can be adjusted in the image plane according to Figure 1 from left to right and The holder 41 has a projection 42. An energy storage device 40, in this case a spring, is attached to this. The opposite end of the energy storage device 40 is attached to the housing 10 by means of a spring holder 15. The holder 41 also has a hook 43 which is formed on the holder 41. Finally, the holder 41 also includes a stop 44.

How Figure 1 As can be further seen, an actuator 60 is held linearly displaceably on the slide 20. For this purpose, guides acting between the slide 20 and the actuator 60 are provided. The actuator 60 comprises a holder 61, which has a bearing pin 61.1 of a bearing 61.2. A locking element 50 is pivotably attached to the bearing 61.2, the pivot plane in Figure 1 perpendicular to the image plane. The locking element 50 has two stops 51, 52 which are arranged at a distance from one another. Furthermore, a guide piece 53 is provided on the locking element 50. The locking element 50 is fastened to the bearing 61.2 with a bearing section 54. For example, it is conceivable that the bearing bolt 61.1 extends through an opening in the bearing section 54.

The actuator 60 is equipped with a further bearing 62.1. A lever 70 is pivotably attached to the bearing 62.1. The pivoting direction is again perpendicular to the image plane. A guide 62.2 is provided in the actuator 60, which works together with a guide element of the lever 70. During an interlocking of the lever 70, the guide element can be guided in the guide 62.2. The lever 70 carries a blocking piece 71 and also has a spring 72. The spring 72 is supported against a support section of the actuator 60 and applies a preload to the lever 70.

How Figure 1 shows, the actuator 60 comprises a holder 63. This carries a stop 63.1. The stop 63.1 is designed to work together with the positioning unit 110, as will be explained in more detail later.

As already mentioned above, the actuator 60 has a stop 64. This works together with the pressure piece 26.2. Alternatively, the pressure piece 26.2 can be omitted. The spring 26.1 then works directly together with the stop 64.

A fastening section 65 with a pivot bearing 65.1 is arranged on the actuator 60. A switching element 80 is pivotally attached to the pivot bearing 65.1. The switching element 80 can be designed as a lever, for example, as shown in Figure 1 The design of the switching element 80 can also be described in more detail Figure 2 As this illustration shows, the switching element 80 has a projecting area, onto which a deflection section 81 is formed in particular. At its free end, the switching element 80 has a locking member 82. The locking member 82 can be equipped with an undercut 83 and has a deflection part 84. The switching element 80 works together with a switching module 90. The switching module 90 is formed by two housing parts which, when assembled, enclose a cavity. The two housing parts can be constructed mirror-symmetrically, in particular at least in the area of the cavity. It is also conceivable that the switching module 90 is formed by only one housing half. As Figure 2 shows, the switching module 90 has an insertion area 91. This insertion area 91 merges into a guide track 92. The guide track 92 is equipped with a deflection slope 93. A stop 94 is also provided on the switching module 90. According to a preferred embodiment of the invention, as Figure 2 This shows that a locking edge 94.1 is provided adjacent to the stop 94. The locking edge 94.1 is at an angle to the stop 94. Preferably, the stop 94 and the locking edge 94.1 enclose the same or an approximately equal angle as the undercut 83. A deflection slope 95 is provided on a web 98 of the switching module 90. As Figure 15 shows, the switching module 90 has a shoulder 96. The shoulder 96 is provided after the stop 94. Finally, the switching module 90 has a return area 97, which, starting from the shoulder 96, flows back into the guide track 92.

The function of the movement device is explained in more detail below. The movement device can be attached to a piece of furniture, for example a drawer. A driver 120 that works together with the movement device is fixed to the corresponding piece of furniture, for example a furniture body. For this purpose, the driver 120 has two fastening receptacles 122. Using these, the driver 120 can be screwed to the furniture body using fastening screws. Of course, the driver 120 can also be mounted on the drawer and the movement device on the furniture body. A driver element 121 is formed on the driver 120. The driver element 121 is in Figure 1 held between the two stops 51,52.

When the drawer is closed, the movement device is in the Figure 1 shown basic position. If an overstroke is now applied to the drawer front, the driver 120 moves relative to the locking element 50. In detail, the locking element 50 is in the image plane according to Figure 1 shifted from left to right. Figure 2 shows the assignment of the switching element 80 to the switching module 90. As this illustration shows, in the basic position the switching element 80 is blocked on the switching module 90. In particular, the undercut 83 rests securely on the stop 94 and the locking edge 94.1. Due to this blockage, the switching element 80 is prevented from moving out of the switching module 90. Since the switching element 80 is attached to the actuator 60, an offset of the actuator 60 is also prevented. The actuator 60 is now preloaded against the energy storage device 26.1. For this purpose, the pressure piece 26.2 rests on the stop 64. If an overstroke is applied, as already indicated above, the locking element 50 is released from the position shown in Figure 1 shown position to the right. This reduces the size of the Figure 3 gap marked S. When the gap S is completely closed, the actuator 60 rests with its holder 61 on a wall of the housing 10, whereby further displacement of the actuator 60 is prevented.

Like the sequence of figures from Figure 2 after Figure 3 shows, when the overstroke is applied, the locking member 82 of the switching element 80 is lifted off the stop 94 in a first actuating movement. After a short travel in the direction of the overstroke, the locking member 82 is moved transversely to the overstroke direction, in Figure 3 perpendicular to the image plane in the depth direction, laterally deflected into the shoulder 96. Due to this combined movement of the locking member 82, on the one hand along the first actuating movement and transversely thereto into the shoulder 96, the switching path of the overtravel mechanism is significantly reduced and the locking member 82 moves past the locking edge 94.1. Advantageously, the first switching movement extends less than or equal to 1 mm up to the point at which the locking member 82 is laterally deflected. The lateral offset of the locking member 82 is made possible according to the present embodiment as follows. The switching element 80 is supported with its deflection section 81 on an associated housing contour of the switching module 90. The switching element 80 is deflected in a spring-elastic manner. In this respect, a preload is applied to the switching element 80. Due to this preload, the locking member 82 snaps laterally into the shoulder 96 when it travels over the step of the shoulder 96. This position shows Figure 3 . the locking member 82 is thus released and can reach the return area 97. However, if the overstroke is continued, for example if a user continues to press on the drawer panel, the locking member 82 comes into contact with the deflection slope 95. Since the locking member 82 is released, it can be deflected further downwards on the deflection slope 84 until it reaches the return area. If the drawer panel is now relieved of pressure, the energy storage device 26.1 can relax. The pressure piece 26.2 pushes out the actuator 60. Figure 5 shows a setting position of the actuator 60 in which it is no longer in contact with the pressure piece 26.2. Accordingly, the energy storage 26.2 has transferred its energy to the actuator 60 and it can move freely. Depending on the energy introduced, the actuator 60 can be moved freely until it comes to rest on a stop on the carrier 21. The drawer is now in a partially opened position. It can now be grasped by the panel, for example, and pulled out. The actuator 60 is locked together with the slide 20 via the locking element 50. The actuator 60, which strikes the carrier 21, pulls the slide 20 in the image plane according to Figure 7 from right to left. The two energy storage units 40 and 30 are charged, for example two springs are tensioned. Figure 7 shows a partial clamping coupling of the two springs. The locking element 50 can be adjusted via the driver 120 until it reaches the area of the parking section 13.1 of the guide 13. When offset from the position according to Figure 1 up to representation according to Figure 8 the locking element 50 is guided by means of the guide piece 53 on the particularly linear guide section 13.4 of the guide 13. As soon as the guide piece 53 reaches the transition area between the guide section 13.4 and the parking section 13.1, it forces the locking element 50 into its tilted position, as shown in Figure 8 In particular, an arc contour is provided on the guide 13, on which the guide piece 53 is deflected and moved into the parking position of the parking section 13.1. As Figure 8 As can be seen, in the tilted position of the locking element 50 the driver 120 is released. The drawer can now be pulled out freely. In the tilted position the locking element 50 blocks the movement device. In particular the guide piece 53 blocks the actuator 60 and thus also the slide 20.

How Figure 8 shows, when the slider 20 is adjusted, both energy storage devices 30 and 40 are initially tensioned simultaneously. However, it is a special feature that the energy storage device 40 is first released during the travel movement. This is shown by Figure 9 explained in more detail. As this illustration shows, the holder 41 is adjusted together with the slide 20 during the travel movement. The energy storage device 40 applies a torque acting in an anti-clockwise direction to the holder 41 via the projection 42. The holder 41 slides along a guide track 17 of the housing 10 until the stop 44 reaches the area of a recess 17.1 of the guide track 17. Due to the acting torque, the stop 44 is deflected into the recess 17.1. This causes the holder 41 to tip over. This also causes the holder 41 to disengage from the projection 28.1; in particular, the holder 43 moves out of a holder receptacle 28.1 so that the locking part 28 is released. The holder 41 is pulled against the rear boundary edge of the recess 17.1 and is held there taut due to the acting torque and with the energy storage device 14. The energy storage device 40 is thus deposited. The slide 20 can be moved further to the left. Figure 10 shows the movement device in an intermediate position between depositing the energy storage device 40 and transferring the locking element of the 50 into its tilted position. As can be seen from this illustration, when the slide 20 is moved to this position, the positioning unit 110 mounted on the slide 20 is also moved. The locking lever 111 of the positioning unit 110 is guided along a guide track 18 of the housing 10. The guide track 18 has a locking edge 18.1. The locking lever 111 locks onto this with its locking hook as soon as it reaches the Figure 10 shown position. The locking hook 113 is secured in this position with the projection 115 of the blocking piece 114. Accordingly, the locking lever 111 can no longer move clockwise and thus can no longer disengage from the locking edge 18.1.

If the movement device is now in the Figure 8 shown, both energy stores 30 and 40 are preloaded, the energy store 26.1 is discharged, the switching element 80 is moved out of the switching module 90 and the locking lever 111 is locked. The damper 130 is in its extended position.

If the drawer is now moved back in opposite directions from its open position, the driver 120 hits the locking element 50. Since the point of impact of the driver 120 is arranged at a distance from the pivot axis of the bearing 61.2, a torque is introduced into the locking element 50. This torque acting in a clockwise direction rotates the locking element 50 from the Figure 8 shown parking position until the guide piece 53 reaches the area of the guide section 13.4 of the guide 13. Then the driver 120 is caught between the two stops 51 and 52, as shown Figure 10 Since the guide piece 53 is no longer blocked, the locking element 50 can be adjusted from left to right in freewheel mode. the locking element 50, the actuator 60 on the slide 20 then moves from left to right. During this adjustment movement, the actuator 60 hits the pressure piece 26.2 with its stop 64 as shown in Figure 11 As this illustration further shows, the switching element 80 moves into the switching module 90. When the drawer is pushed further shut, as shown Figure 12 the stop 63.1 points to the blocking piece 114. The switching element 80 also moves with its locking member 82 against the deflection slope 93. With a further movement of the drawer, the locking member 82 is moved past the deflection slope 93 and brought into the locking position so that it rests against the stop 94. At the same time, the stop 63.1 also pushes the blocking piece 114 against the preload of the spring 27.1. As a result, the projection 115 of the blocking piece 114 comes into a position offset to the right so that the locking lever 111 is released, as shown in Figure 12 shows. This allows the locking lever 111 to be released from the step 10.13. However, if the locking lever 111 is released from the step 10.13, the slide 20 is also released. This allows the two energy storage devices to be triggered one after the other in a cascade. When the locking lever 111 is released, the energy storage device 30 is triggered first and can pull the slide 20 from left to right. This happens against the force of the extended damper 130. In order to prevent the actuator 60 from moving in the Figure 13 shown locking position in which the switching element 80 holds on the stop 94 and can be moved relative to the slide 20, a locking edge 19 is provided on the housing 10. This locking edge 19 works together with the lever 70. As Figure 13 shows, the lever 70 is held pre-tensioned in the position shown by means of the spring 72. The blocking piece 71 of the lever 70 hooks onto the locking edge 19. This prevents the actuator 60 from being offset relative to the slide 20 in the retraction direction. This means that the overstroke mechanism cannot be moved into overstroke and thus ensures that the blockage in the switching module 90 cannot be released. This danger exists in particular if vibrations occur or if a user were to press on the drawer again during the automatic retraction movement. The locking of the actuator 60 relative to the slide 20 with a switchable lever 70 for blocking the locking of the switching element 80 during the closing movement represents an independent inventive concept.

Figure 14 shows that when the drawer is closed further using the energy storage device 30, the energy storage device 40 can also be triggered. In detail, the locking part 28 of the slide 20 acts on the stop 44 of the holder 41 and deflects this clockwise against the torque induced by the energy storage device 40. The stop 44 of the holder 41 is thus lifted out of the recess 17.1 and the second energy storage device 40 is released, allowing it to discharge. In this way, a cascade connection of the two energy storage devices 30, 40 is created. The maximum force required to open the drawer can be reduced by means of the cascade connection. In particular, the force required when opening can be reduced by putting down the energy storage device 40, which makes opening the drawer more comfortable. On the other hand, the energy storage device 40 then supports the closing process, ensuring that the drawer is closed safely. During part of the closing movement, both energy storage devices 30 and 40 pull the slide 20 in the direction of the closing position. The closing position is again in Figure 1 As can be seen from this illustration, the blocking piece 71 of the lever 70 has moved over the step 10.13 and is there held in place by means of a deflection bevel 73 (see Figure 12 ). The actuator 60 is now no longer blocked relative to the slide 20. The movement device is thus released so that a new overstroke can be applied to open the drawer.

During the transfer of energy from the two energy storage devices 30 and 40 when closing the drawer, not only the slide 20 with the actuator 60 is pulled by the two energy storage devices 30 and 40. Rather, these two energy storage devices 30 and 40 also pull the actuator 60 against the pressure piece 26. In this way, the Figure 1 shown basic position can be reached again.

It can happen that a user wants to open the drawer without applying an overstroke to the drawer panel. In other words, he can open the drawer without over-travel. In order to prevent damage to the movement device and to enable the drawer to be opened, the movement device provides the second parking section 13.2 in the area of the guide. If the drawer is pulled, the locking element 50 is pulled by the driver 120. This is in Figure 16 shown. As this illustration shows, the locking element 50 also pulls the actuating element 60 coupled to it. Since the slide 20 is now coupled to the actuating element 60 via the switching element 80 and the switching module 90, the slide 20 is also pulled. When the slide 20 is adjusted, the two energy stores 30, 40 are also tensioned. Due to the pretension of the energy stores 30 and 40, a tensile force is introduced into the locking element 50 which acts in the opposite direction to the pull-out direction of the drawer. At the same time, the driver 120 in the contact area of the driver element 122 with the stop 52 of the locking element 50 introduces a force into the locking element 50 which acts in the opposite direction to the pull-out direction. This force induces a torque which rotates counterclockwise around the bearing 61.2. As soon as the locking element 50 is pulled into the area of the spring part 13.3 of the guide 13, this torque causes a deflection of the spring element 13.3. The locking element 50 is thus deflected into the 2nd parking position 13.2. How Figure 16 can be seen, the driver 120 is then released and the drawer can be pulled out. When the drawer is now closed again, the driver element 122 moves against the stop 51 of the locking element 50. This introduces a clockwise torque into the locking element 50. This rotary element lifts the locking element 50 out of its tilted position so that the guide piece 53 can return to the area of the guide section 13.4. The two energy stores 30 and 40 pull the locking member 50 back into the Figure 1 Return to the starting position shown.

In the Figures 17 and 20 is one of the Figures 1-16 modified movement device shown. This in the Figures 17-20 The movement device shown is fully in accordance with the prescribed Movement device, except for the differences described below.

How Figure 17 shows, an adjustment device 26.5 is arranged in the area of the energy storage device 26.1. In particular, this adjustment device 26.5 can be arranged in the area between the support bearing 26 and the energy storage device 26.1. The adjustment device 26.5 essentially consists of two components, namely an adjustment part 26.4 and a counter bearing 26.51
With reference to Figure 19 the shape of the adjustment part 26.4 is explained in more detail. As this illustration shows, the adjustment part 26.4 has a handle 26.41. The handle 26.41 has a surface structure that makes it easier to operate the adjustment part 26.4. A projection 26.42 is formed on the handle 26.41. The projection 26.42 forms an adjustment curve 26.43. This adjustment curve 26.43 has support sections 26.45 that are connected to one another by means of transition sections 26.44. The adjustment part 26.41 can in particular be designed in the form of a sleeve, as Figure 19 shows. How Figure 18 illustrated, the counter bearing 26.51 is attached to the slide 20. In particular, it can be connected to the slide 20 in one piece in order to reduce the number of parts. The counter bearing 26.51 has an adjustment contour 26.52 corresponding to the adjustment curve 26.43 of the adjustment part 26.4. As Figure 18 As can be seen, the adjusting part 26.4 is threaded onto the mandrel 26.3. The mandrel 26.3 has locking grooves which are distributed over the circumference of the mandrel 26.3 in accordance with the number of support sections 26.45. Alternatively, locking grooves evenly distributed all around the mandrel 26.3 can also be provided, with the circumferential distance between the individual locking grooves corresponding to the circumferential distance between two support sections 26.45. The locking grooves run in the longitudinal direction of the mandrel 26.3. As Figure 19 shows, the adjusting part 26.4 has locking elements 26.46. When the adjusting part 26.4 is threaded onto the mandrel 26.3, the locking elements 26.46 engage in the associated locking grooves. The adjusting part 26.4 is supported by its adjusting curve 26.43 on the adjusting contour 26.52. Opposite the adjusting curve 26.43, the adjusting part 26.4 has a support surface 26.47. If the adjusting part 26.4 is now rotated, the adjusting curve 26.43 slides on the adjusting contour 26.52. This achieves an axial adjustment of the adjusting part 26.4 in the direction of the longitudinal extension of the mandrel 26.3. Since the energy storage device 26.3 rests on the support surface 26.47 at its end facing the adjusting part 26.4, the energy storage device 26.3 can be adjusted in the Figure 1 shown position by turning the adjusting part 26.4. This allows the preload of the energy storage device 26.1 to be varied. As a result of the change in the preload, the available pushing-out force for moving the drawer can also be changed. The movement device can therefore be adapted to the weight of a drawer, for example. For a lighter drawer, the preload is reduced and for a heavier one, it is increased. When turning the adjusting part 26.4, it is always held securely in the individual setting positions, since the locking elements 26.46 engage in the locking grooves of the mandrel 26.3. As Figure 20 As can be seen, the adjusting part 26.4 is accessible from the outside so that it can be conveniently operated. For this purpose, a recess is provided in a housing part of the housing 10, which provides access to the handle 26.41 of the adjusting part 26.4.

For the movement facilities according to the Figures 1-20 the position of the locking element 50 can be varied. In this way, the position of the panel in relation to the furniture body can also be varied. This is particularly important if, for example, several drawers are mounted next to each other in a kitchen. Then all panels should be aligned with each other. According to the invention, an adjustment element 100 is therefore used. As Figure 1 shows, the adjusting element 100 has an eccentric 101. The adjusting element 100 is rotatably mounted in the housing 10, wherein the axis of rotation is perpendicular to the image plane according to Figure 1 The adjustment element 100 also has a tool holder 102. This tool holder 102 is accessible through an opening in the housing 10. As Figure 1 As can be further seen, the actuator 60 rests against the eccentric 101 with a support surface. In the present case, the eccentric 101 is supported on the support surface in the area of the support bearing 26. If the adjusting element 100 is now rotated on its tool holder 102 by means of a tool, the eccentric 101 adjusts the actuator 60 in the image plane according to Figure 1 horizontally to the left or right depending on the direction of rotation. In this way, the position of the drawer panel can be varied. While the invention variant according to the Figures 1-16 a stepless eccentric 101, is in the invention variant according to the Figures 17-20 a stepped eccentric 101 is used. The individual steps of this eccentric 101 lie flat on the support surface in the corresponding setting position.

Claims (10)

1. A movement device for drawers having a sliding-open mechanism, wherein by means of the sliding-open mechanism a blocking element (50) is movable from a closed position into an open position or a part-open position, wherein the sliding-open mechanism is held in the closed position by means of an overstroke mechanism, wherein the overstroke mechanism comprises a switching element (80) which is held on a stop (94) in the closed position by way of a blocking member (82) and, when an overstroke is applied to the switching element (80), is liftable from said switching element in a first switching movement,
   characterized in that
   when the overstroke is applied, the blocking member (82) is offset transversely to the first switching movement, wherein a shoulder (96), into which the blocking member (82) is deflected and is not engaged with the stop (94), connects to the stop (94), wherein a deflection bevel (95) is provided which interacts with a deflection part (84) of the switching element (80), and wherein the switching element (80) deflected into the shoulder (96) is deflectable with the deflection bevel (95) transversely to the overstroke direction in a return region (97), characterized in that the switching element (80) is held in a spring-prestressed manner on the stop (94), and in that when the blocking member (82) transfers from the closed position into the offset position, the prestressing is reduced or removed.
2. The movement device as claimed in claim 1,
   characterized in that
   a guide track (92) is provided which comprises a deflection bevel (93), and in that the deflection part (84) interacts with the deflection bevel (93) in order to move the switching element (80) in the region of the stop (94).
3. The movement device as claimed in one of claims 1 or 2,
   characterized in that
   the stop (94) is part of a switching module (90) which forms a cavity into which the switching element (80) is introducible through a lead-in region (91).
4. The movement device as claimed in one of claims 1 to 3,
   characterized in that
   the switching element (80) comprises a deflection portion (81) which is adjusted at a counter element when the switching element (80) moves in order to move the switching element (80) into the prestressing position.
5. The movement device as claimed in one of claims 1 to 4,
   characterized in that
   the switching element (80) is pivotably mounted on a pivot bearing (65.1).
6. The movement device as claimed in one of claims 1 to 5,
   characterized in that
   the overstroke mechanism couples the sliding-open mechanism with a closing mechanism.
7. The movement device as claimed in one of claims 1 to 6,
   characterized in that
   the switching element (80) is held on an actuating member (60) which is held prestressed in the closed position directly or indirectly against an energy storing means (26.1).
8. The movement device as claimed in one of claims 1 to 7,
   characterized in that
   the switching module (90) is coupled directly or indirectly to the closing mechanism.
9. A method for moving a drawer from a closed position into an open or part-open position, wherein a blocking element (50) is movable by means of a sliding-open mechanism, wherein the sliding-open mechanism is held in the closed position by means of an overstroke mechanism, wherein a switching element (80) abuts against a stop (94) in order to hold the switching element (80) in the closed position, and wherein when an overstroke is applied, the switching element (80) is lifted from the stop (94) in a first switching movement,

   wherein, when the overstroke is applied, the blocking member (82) is offset transversely to the overstroke direction, wherein a shoulder (96), into which the blocking member (82) is deflected and is not engaged with the stop (94), connects to the stop (94), wherein a deflection bevel (95) is provided which interacts with a deflection part (84) of the switching element (80), and wherein the switching element (80) deflected into the shoulder (96) is deflectable with the deflection bevel (95) transversely to the overstroke direction in a return region (97),

   characterized in that

   the switching element (80) is held in a spring-prestressed manner on the stop (94), and in that when the blocking member (82) transfers from the closed position into the offset position, the prestressing is reduced or removed.
10. Use of a movement device as claimed in one of claims 1 to 8 in a method as claimed in claim 9.

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