ES2432238T3 - Extraction Lock Device - Google Patents

Abstract

Extraction locking device for at least two drawers (1), alternatively removable from a removable body (2) in an extraction direction (6) and can be introduced against the extraction direction (6), which comprises for each of the drawers (1) a locking bolt (7) displaced in the extraction direction (6) during drawer extraction (1) and against the extraction direction (6) during the introduction of the drawer (1), as well as It comprises for each of the drawers (1) a locking unit (9) that is movably guided in a vertical direction with respect to the furniture body (2) and has a first pushing element (11), with which the bolt collides lock (7), moved together with this drawer (1), during drawer removal (1) and thereby raising the locking unit (9) and, with it, all possible locking units (9) located above this locking unit (9) from a lowered position to an elevated position, characters because the upper locking unit of the blocking units (9) is connected to a damping element (26) which can apply a damping force that counteracts a lowering of this blocking unit (9) from the raised position to the lowered position, because if a drawer (1) is removed, on which at least one other drawer (1) is located, each of the blocking units (9), raised together during the extraction of this drawer (1), is coupled with the unit next upper locking device (9) respectively by means of an interlocking piece (20) that is in an interlocked position and because each of the locking units (9) has a second pushing element (12) which, during the extraction of the corresponding drawer, pulls downwards of the lock-out unit (9) which has this second thrust element (12) and, together with it, of all the possible block units (9), located above, against the damping force n damping element (26) when elperno lock (7) moved together with the drawer (1) collides with the second thrust element (12).

Description

Extraction Lock Device

[0001] The invention relates to an extraction locking device for at least two drawers, alternatively removable from a furniture body in an extraction direction and introducible against the extraction direction, which comprises for each of the drawers a locking bolt displaced in the extraction direction during the drawer extraction and against the extraction direction during the introduction of the drawer, as well as for each of the drawers comprises a blocking unit that is guided in a displaceable direction vertical with respect to the furniture body and has a first thrust element, with which the locking bolt collides, moved together with this drawer, during drawer removal and thus raising the locking unit and, with it, all the units of possible blocking, located above this blocking unit, from a lowered position to an elevated position.

[0002] The extraction blocking devices prevent the extraction of two or more drawers coupled to one another by means of the extraction blocking device. Consequently, the drawers can be removed only alternately, that is, in the state extracted from one of the drawers, the other drawers are locked against an extraction in its fully introduced state.

[0003] Extraction locking devices are known in different forms of configuration. The pushing elements of the blocking units for the vertical displacement of the blocking units can be formed here by inclined surfaces located in the blocking units or by abutment surfaces of pieces of blocking units that can rotate around horizontal axes and vertical, see, for example, documents EP1154107A2, GB2376043A and EP1500763A2. If a locking bolt installed in a drawer raises the interlocking unit assigned to the bolt during the exit of the drawer and, with it, the possible interlocking units located above and assigned to other drawers (if the upper drawer is not removed), the extraction of other drawers is then blocked. The drawers located under the extracted drawer cannot be removed, because the elevation of the interlocking unit assigned to it is blocked, and the drawers located above the extracted drawer cannot be removed, because the elevated interlocking unit blocks an exit of the bolt lock, installed in the drawer, in the direction of extraction.

[0004] For example EP1500763A2, for example, extraction locking devices are known, in which the introduction of an extracted drawer is damped in the last section of movement before reaching its fully inserted position. For this purpose, an own damping element is assigned to each of the drawers to be cushioned.

[0005] It is an object of the invention to make available an extraction blocking device of the type mentioned at the beginning, in which the entry of the drawers is cushioned and which saves costs with respect to the previously known extraction blocking devices.

[0006] This is achieved according to the invention by means of an extraction blocking device with the features of claim 1.

[0007] In the extraction locking device according to the invention, the upper unit of the blocking units is connected to a damping element that dampens the lowering of this upper blocking unit from its raised position to its lowered position. If the upper drawer is removed, the corresponding locking bolt, which moves at the same time in the extraction direction, actuates the thrust element of the upper locking unit assigned to the upper drawer and lifts it from its lowered position to its position high. During the introduction of the upper drawer, the locking bolt collides with the second thrust element, if this introduction is performed at a correspondingly high speed, and pulls the upper locking unit down against the damping force exerted by the damping element, which dampens the introduction of the drawer.

[0008] If a drawer located under the upper drawer is removed, then the locking bolt, moved together with the drawer, in turn raises the locking unit corresponding to the raised position. By means of the blocking unit displaced upwards, all the blocking units located above also move upwards and rise to the raised position. If the drawer is reintroduced and the locking bolt collides with the second thrust element during the introduction, the lock unit assigned to this drawer is pulled down and due to the coupling between the blocking units located above and this The locking unit by means of the interlocking elements also pulls down the blocking units located above, the traction downwards of all the blocking units being counteracted by the damping force of the damping element.

[0009] Therefore, in order to dampen the entry movement of any drawer, only a single damping element that interacts with the upper locking unit or with a part attached to it is needed, for example, a rocker lever rotated when raised and lowered The upper locking unit.

[0010] The first and second thrust elements, which interact with the corresponding locking bolt, of a respective locking unit are preferably formed by the first and second thrust surfaces. The first thrust surface points downwards and runs, seen in the direction of extraction, with a downward or downward inclination, that is, it is inclined both horizontally and vertically. The inclination with respect to the horizontal can be, for example, in the range of 10 ° to 40 °. The second thrust surface points upwards and rises inclined against the direction of extraction or runs inclined upwards, that is, it is inclined both horizontally and vertically. The inclination with respect to the horizontal is preferably in the range of 10 ° to 40 °.

[0011] In order to enable the lifting of a blocking unit with respect to one or more blocking units that are located below and remain in the lowered position, each of the interlocking pieces can be moved between the locked position, in the which joins or overlaps two overlapping blocking units, and the released position, in which the joint or coupling between these two blocking units is released, that is, in which it is possible to raise the upper blocking unit by being lower the lower lock unit. The interlocking part is conveniently moved here by means of the locking bolt, assigned to the upper locking unit of the two locking units that can be joined by the interlocking part, when the corresponding drawer is removed.

[0012] For the displacement between its locked position and its released position, a respective interlocking piece can preferably rotate around an axis of rotation arranged, for example, in the upper unit of the two locking units that can be joined by the interlocking piece. When the drawer is removed, the locking bolt collides with a first driving surface of the interlocking part and rotates it around its axis of rotation, which disengages an interlocking pivot, arranged in the other locking unit, of an interlocking pivot of the interlocking part. The lifting of the upper locking unit is preferably started during the rotation of the interlocking piece. When the interlocking part is released again from the locking bolt, it can turn back to the locked position, for example, by gravity or by a spring, but not engaged in the interlocking pivot of the other locking unit. blocking.

[0013] When this drawer is reintroduced, the locking unit must be reconnected to the blocking unit located below, if any, by the interlocking piece almost at the end of the descent of this blocking unit assigned to it. drawer. For this purpose, a second drive surface is preferably provided in the interlocking part which collides with the interlocking pivot or also with another part of the lower locking unit and rotates the interlocking part to its released position, until the unit upper locking low so that the interlocking heel can embrace the interlocking pivot if the descent continues. The interlocking part can then rotate to the locked position, for example, by the force of gravity and / or the approaching locking bolt and / or a spring, the interlocking heel embracing the interlocking pin.

[0014] In an advantageous embodiment of the invention, the length of the extension of a respective locking unit, seen in the direction of extraction, is only a part of the length of the path traveled by the locking bolt upon removal of a drawer, preferably less than a quarter of the length of the extraction path of the locking bolt. After this first part of its path, the locking bolt is disengaged from the rotation unit assigned to it. So that the blocking unit raised by the locking bolt and the rotating units located above and raised at the same time, if any, remain, however, in the elevated position, a spacer is provided for each blocking unit that before If the locking bolt is disengaged and the turning unit is moved by the locking bolt from a passive position to an active position, in which the spacer keeps the locking units elevated in their elevated position. During the introduction of the drawer, the spacer is moved again by means of the locking bolt to its passive position, in which it does not exert the function of keeping the locking units raised in their elevated position. In particular, the spacer moves between its active position and its passive position by a rotation of the spacer, preferably around a horizontal axis, the spacer being rotatably supported on the raised lower locking unit. The spacer could also be rotatably supported on the locking unit located below the elevated lower locking unit, if any, having to rotatably support the spacer on another part for the existing lower locking unit.

[0015] In the case of an extraction blocking device, according to the invention, an automatic introduction (= an automatic introduction system) can be advantageously easily implemented. For this purpose, an introduction spring is provided that requests the upper locking unit downwards in its raised position. In this way, all raised locking units are also requested downwards together with the upper locking unit, if a drawer has been removed under the upper drawer. When the locking bolt moved together with the inserted drawer arrives during the introduction of the drawer into the area, where it interacts with the first pushing element, this first pushing element is pressed against the locking bolt, thereby exerting a force which acts on the locking bolt in the direction of introduction and, therefore, on the drawer.

[0016] Other details and advantages of the invention are explained below by means of the attached drawing. They show:

Fig. 1 an inclined view of a part of a furniture body and of the drawers, which can be extracted from it, together with an extraction blocking device according to an embodiment of the invention, with all the drawers in an inserted state and locked by means of a central interlocking; Fig. 2 an inclined view in correspondence with Fig. 1 in the state extracted from one of the drawers; Fig. 3 an enlarged section of figure 1; Fig. 4 to 7 representations in correspondence with figure 3 in different phases of extraction of one of the drawers; Fig. 8 to 12 representations in the positions of the drawers in correspondence with figures 3 to 7, in view side; Fig. 13 a vertical section parallel to the direction of extraction, centrally through the locking units, with all drawers fully inserted; Fig. 14 a section analogous to figure 13, in the state extracted from one of the drawers; Fig. 15 and 16 representations in correspondence with figures 7 and 12, but in the state extracted from another drawer (the top drawer); Fig. 17 a view of the basic body of one of the locking pieces or distance pieces; Y Fig. 18 and 19 inclined views of the basic body, from the front and the rear.

[0017] An exemplary embodiment of an extraction locking device according to the invention is represented in figures 1 to 19.

[0018] The drawers 1 can only be removed alternately from the furniture body 2 due to the device extraction lock. If one of the drawers 1 has been removed, the extraction of the other drawers 1 is blocked.

[0019] The drawers 1 are moveably supported with respect to the furniture body 2 on both sides of the drawer by means of an extraction guide 3. In the figures they are schematically represented on one side of the drawers 1 body rails 4 fixed in the furniture body 2 and drawer rails 5 fixed in the respective drawer 1. In order to configure a complete extraction or an excessive extraction, it could also be arranged at least a central rail between body rail 4 and drawer rail 5.

[0020] A locking bolt 7 moves in each case together with the drawer 1 during the removal of a drawer respective 1 in the extraction direction 6 and during its introduction against the extraction direction 6. In the exemplary embodiment, the locking bolt 7 is located on an arm 8 that is fixed in the drawer rail 5 and protruding therefrom, that is, against the removal direction 6. The locking bolt 7 could be also located in a piece, fixed directly in drawer 1, or directly in drawer 1, if it correspondingly extend very far back.

[0021] A lock unit 9 is assigned to each drawer 1 that interacts with the moved lock bolt 7 together with this drawer 1, when the drawer is removed. The blocking units 9 are scrollable guided in the vertical direction on a rail 10 fixed to the furniture body 2. If all the drawers 1 are closed, the locking units 9 are located one above the other.

[0022] The blocking units 9 have in each case a first and a second pushing element 11, 12. In In the exemplary embodiment, the pushing elements 11, 12 are formed by first and second surfaces of push. The first thrust surface points down and is set down in the extraction direction 6. The second thrust surface points upwards and is also configured as way down in the direction of extraction, that is, upwards against the direction of extraction 6. Between the pushing surfaces there is, therefore, a guideway 18, which runs in a manner inclined, for the respective locking bolt 7. When a drawer 1 is removed, the corresponding locking bolt 7 interacts with the first pushing element 11, raising the blocking unit 9 assigned to drawer 1 (see the Figures 3 to 7 and 8 to 12). If the drawer extracted 1 is not the upper drawer, the at least one unit of lock 9 located above the drawer removed 1. The raised lock units 9 move from one position lowered to an elevated position.

[0023] Before the locking bolt 7 leaves the blocking unit 9, with which it interacts or in which gear, in the extraction direction 6, the bolt drives a spacer 13 assigned to the locking bolt respective. This spacer is rotatably supported around a horizontal axis 14 between a position passive and an active position in the blocking unit 9, with which the locking bolt 7 interacts. Before colliding the locking bolt 7, displaced in the removal direction 6, with the spacer (see the position removed from the central drawer in figures 5 and 8), the spacer 13 is in its passive position. As a result of the crash of the locking bolt 7, this then rotates to its active position, see Figures 6 and 9, in which the bolt of lock 7 can exit a gear notch 15 of the spacer 13. In the active position of the spacer 13, a front support surface 16 of the spacer 13 rests on a contact section 17 that is arranged in the blocking unit 9 located below, if any. If the drawer removed is the bottom drawer, the bearing surface 16 of the spacer 13, rotatably supported on the corresponding locking unit 9 and turned to its active position, it is supported by a contact section 17 ’which is fixed or arranged in a piece

intermediate 36, described below, or in another part that is held in a non-movable manner with respect to the furniture body 2, at least in the downward vertical direction.

[0024] The spacer 13, displaced to its active position, keeps the blocking unit 9 assigned to the drawer 1 and, if necessary, the blocking units 9 located above in its raised position, when the locking bolt 7 is disengaged of the locking unit 9.

[0025] The spacer 13 could also be rotatably supported in the locking unit 9 located below, if any, or in the case of the lower drawer 1, in another part located below the lower locking unit 9 and held in place. way not scrollable down. Spacers with other configurations are also possible, for example, spacers 13 rotatably supported about a vertical axis. In principle, the spacers 13 could be dispensed with if the blocking units 9 extend in the removal direction 6 along the entire path traveled by the blocking bolt 7 and if a surface of the next inclined thrust is connected contact for the locking bolt 7 that runs horizontally in the removal direction 6 and prevents a lowering of the locking unit 9.

[0026] When the extracted drawer 1 is reintroduced, the locking bolt 7, moved at the same time, enters the gear notch 15 of the assigned spacer 13 and rotates it from its active position to its passive position, in which the locking bolt 7 can again exit the gear notch 15. At the latest, when the spacer loses its function of holding the locking unit 9 assigned to the locking bolt 7, the locking bolt 7 engages in the locking unit 9, so that the locking bolt can support it against a descent. When the drawer 1 continues to be inserted, the blocking unit 9, which interacts with the blocking bolt 7, descends again to the lowered position and with it, if necessary, the blocking units 9 raised at the same time and positioned above.

[0027] If one of the drawers 1 has been removed and the corresponding locking unit 9 is in the raised position, all the drawers 1, if necessary, are located above, are locked against an extraction when the locking bolt is locked 7, moved together with these respectively, against a displacement in the extraction direction 6 by a locking surface 19 (see Figures 13 and 14). The blocking surface 19 can be located in the blocking unit 9, with which the pushing element 11 collides the locking bolt 7 when this drawer 1 is removed (if the extraction of this drawer 1 is not blocked by a lower drawer 1 already removed ) or also in the blocking unit 9, located below, that in the elevated position is so displaced upwards that the blocking bolt 7, moved together with this drawer 1, is located behind this blocking surface 19 with respect to the direction of extraction 6 and collides with this surface 19 if this drawer 1 is attempted to be removed. The last mentioned arrangement has been implemented in the present embodiment, as can be seen in particular in Figure 14 in the case of the locking bolt top 7.

[0028] If there is at least one other drawer 1 under an extracted drawer 1, it is locked against an extraction, since for the extraction of this drawer 1 the blocking unit 9 assigned thereto should be raised. This upward movement would have to be followed by all blocking units 9 located above, as well as at least one blocking unit already raised by the spacer 13 located in its active position. However, a further upward displacement of at least one already raised blocking unit 9 is blocked. Such blocking is configured by a corresponding stop for the upper blocking unit 9, which can be arranged, for example, in lane 10.

[0029] The drawers 1, located above an extracted drawer 1, can be locked against an extraction by blocking the subsequent elevation of the already elevated blocking units 9, instead of by the blocking surface 19 or additionally this.

[0030] In the entered state of all the drawers 1, all the blocking units 9 are coupled to each other by interlocking pieces 20 so that they cannot be separated from each other. A respective interlocking piece 20 joins two overlapping locking units 9 if it is in its locked position. When the removal of a drawer 1 begins, the interlocking piece 20, which attaches the blocking unit 9 assigned to this drawer 1 to the blocking unit 9 located below, is moved by means of the locking bolt 7 to a released position, in that the two mentioned blocking units 9 are decoupled from each other and the blocking unit 9, assigned to the drawer 1 removed, can be raised with respect to the blocking unit 9 located below. For this purpose, the locking bolt 7 collides with a first drive surface 21 of the interlocking piece 20 and rotates it around the horizontal axis 22 (see Figures 4 and 9).

[0031] The interlocking part 20 is rotatably supported around the axis 22 in the upper locking unit of the two interlocking locking units by means of the interlocking part 20 and embraces with the interlocking heel 23 a locking pivot arranged in the lower locking unit of the two locking units 9 attachable by the interlocking part 20, if the two locking units 9 are coupled 24 by means of the interlocking part 20. The interlocking part 20 could also have a pivot of interlocking that engages in an interlocking notch in the interlocking unit 9. The interlocking part 20 reaches its released position as a result of the rotation around the axis 22. During the rotation of its interlocked position to its released position, the unit of upper lock 9 slowly rises from the unit

of lower lock 9. The lifting of the upper lock unit 9 is started when the locking bolt 7 collides with the first thrust element 11 simultaneously with the rotation of the interlocking piece 20.

[0032] After disengaging the locking bolt 7 of the interlocking piece 20, it rotates to return to its locked position, and the upper locking unit 9 has been raised so much that the locking heel 23 no longer engages the pivot. interlocking 24.

[0033] If a drawer removed 1 is introduced slowly enough, the locking bolt 7 remains in contact after turning the spacer 13 with the pushing surface that forms the first pushing element 11, continuously lowering the locking units raised 9 when the drawer 1 is introduced. Regardless of the type of rotation of the interlocking part 20, the process is developed in reverse, as shown for the exit process in Figures 3 to 7 or 8 to 12. A faster entry process is described below, in which damping is applied.

[0034] Almost at the end of the introductory movement, the interlocking piece 20 collides by means of a second actuating surface 25 with the interlocking pivot 24 of the locking unit 9 located below, turning the interlocking part to its released position when following lowering the upper locking unit 9, until the two locking units 9 are so close to each other that the locking heel 23 can embrace the locking pin 24. This return turn to the locked position can be caused by force serious. The locking bolt 7 can additionally collide with the locking part 20 at the end of the introductory movement. A spring element could also be provided that pretends the locking part 20 in its locked position. The lowering of the upper locking unit 9 in the last section and the turning of the locking part 20 to its locked position take place at the same time.

[0035] A respective interlocking piece 20 could also be arranged in the lower locking unit of the two locking units 9 that can be joined by the interlocking piece 20, a spring element prestressing the interlocking part 20 in its position nestled

[0036] A damping element 26 interacts with the upper locking unit 9. For this purpose, in the embodiment shown, a lever 27 is provided which, when the upper locking unit 9 is raised and lowered, is rotated by it around its shaft 28. The lever 27 drives the damping element 26. The damping element 26 can be configured, for example, in the form of a piston and cylinder unit, engaging the lever 27 in the cylinder 29 and engaging the piston rod 30 in a fixing piece 31 fixedly attached to the body. It is also possible, for example, to drive the piston rod 30 and firmly hold the cylinder 29 in the body.

[0037] If an extracted drawer 1 is inserted with a corresponding speed, the locking bolt 7 moved together with the drawer comes into contact with the pushing surface that forms the second pushing element 12. Thus, the locking bolt pulls down from the locking unit 9 that interacts with it. If it is the upper drawer 1, this locking unit 9 is directly coupled to the damping element 26. If it is a drawer 1 located below, then the blocking units 9 located above are coupled by the interlocking pieces 20 to the locking unit 9, from which the locking bolt 7 pulls down and, consequently, is also coupled by the upper locking unit 9 to the damping element 26. In this way, the damping element 26 can apply a force of damping to counteract the introduction of any of the drawers 1.

[0038] The upper locking unit 9 is further coupled to the introduction spring 32 in the embodiment shown. For example, the insertion spring 32 can act, as shown, between the lever 27 and the fixing part 31 fixedly fixed in the body. If the upper locking unit 9 is in its raised position, the insertion spring 32 requests with an elastic force downwards this upper blocking unit 9 and the blocking units 9 located below and also raised. If a drawer removed 1 is not fully inserted, but its locking bolt 7, moved together with it, has already entered the corresponding blocking unit 9, then the blocking unit 9, which interacts with this locking bolt 7, it is pressed with its first thrust element 11 against the locking bolt 7, thus moving the locking bolt 7 against the extraction direction 6, until the drawer 1 is fully inserted. This automatic introduction is performed in a damped manner, because the insertion spring 32 acts against the damping element 26.

[0039] The damping element 26 and / or the insertion spring 32 could also interact directly or indirectly, differently than shown, with the upper locking unit 9, for example, acting directly on it. Likewise, the introduction spring 32 could be dispensed with or instead the body rail 4 with a descending section against the extraction direction 6 could be configured in the rear end zone to cause an automatic introduction by the weight of the drawer 1, as is known

[0040] In the state removed from the upper locking unit 9, the insertion spring 32 is in the stop, that is, as compressed as possible, the introducing spring 32 also forming the stop for the movement of the locking unit upper 9 up in the embodiment example.

[0041] A central interlocking is also provided in the embodiment shown. A central locking part 33 interacts with the upper locking unit 9 in a locked position such that it is locked against an elevation from its lowered position. For this purpose, the lever 27 may have, for example, a second lever arm 34, whose rotation is locked by the central locking part 33 in its locked position. In figures 1, 3 and 8 the centrally locked state is shown. Before one of the drawers 1 can be removed, the central locking part 33 of the lever arm 34 must be disengaged. In the figures, the central locking part 33 is configured as a bolt, arranged eccentrically in a shaft, which rotates around its shaft. axis for unlocking and locking operation. Other configurations are also possible.

[0042] A respective locking unit 9 comprises in the exemplary embodiment shown a locking piece 35 having the first and second thrust elements 11, 12 and, if necessary, one or more intermediate pieces 36 depending on the height of the drawers 1. The upper locking unit 9 can have, for example, a locking piece 35 and an intermediate piece 36 located above, with which the damping element 26 and the insertion spring 32 interact, and the control units lock 9 located below can have a lock piece 35 and two intermediate pieces 36 located above. Underneath the lower locking unit 9 there is also a separate intermediate piece 36 having the contact section 17 'for the bearing surface 16 of the spacer 13 of the lower locking unit 9.

[0043] The blocking pieces 35 and the intermediate parts 36 may have identically configured basic bodies, on which a spacer 13 may be rotatably supported or a contact section 17, 17 ′ may be located, depending on the use. Within a respective locking unit 9, the locking piece 35 is coupled to the intermediate piece 36 located above, if any, by means of an interlocking piece 20, analogously as in the case of two overlapping locking units 9. If a locking unit 9 has more than one intermediate piece 36, the overlapping intermediate pieces 36 are also coupled to each other by interlocking pieces 20.

[0044] A respective locking unit 9 preferably has a guide tongue 37 that projects upwards or downwards and engages in a guide notch 38 in the locking unit 9 located below or also located above. Accordingly, the blocking units 9 are also guided in a displaceable manner in a vertical direction, which counteracts a slope in the lane 20.

[0045] Depending on the size of the drawers, a larger or smaller number of intermediate pieces 36 can be used or the intermediate pieces 36 can be dispensed with completely. In this way a simple adaptation to different drawer heights 1 is achieved.

[0046] The base body of the locking pieces 35 and the intermediate pieces 36 is shown in Figures 17 to 19. This presents the first and second thrust elements 11, 12 formed by the inclined surfaces. Between these, the guide track 18 for the locking bolt 7 inclines in an inclined manner. Next to the rear end, with respect to the removal direction, there is a vertical guide track 39, into which the locking bolt can enter the raise the blocking unit 9, if the base body is used to configure a locking piece 35. At the upper end is another vertical guideway 40, into which a locking bolt 7, which is located above, can enter and leaves the guideway 39 of the locking piece 35 located above, during the subsequent lifting of the locking unit 9. The surface, which limits the guideway 40 in the extraction direction 6, forms the locking surface 19 .

[0047] The base body also has stumps 41, 42, on which the interlocking part 20 or the spacer 13 can be rotatably supported, if necessary. A body forming the contact section 17, 17 ’can be fitted to the pivot 43. The pivot 43 could also directly form the contact section 17, 17 ’.

[0048] The guide tongue 37 and the guide groove 38 serve to support each other in a movable manner two base bodies arranged one above the other. Also, guide ribs 44, 45 are provided which run vertically for the movable support of the base body in rail 10.

[0049] The locking pin 24 is used, if necessary, to interact with a locking piece 20.

[0050] The stop pivot 46 limits the rotation of an interlocking piece 20 rotatably supported, if necessary, on the stump 41.

[0051] Intermediate pieces 36 can also be used that have base bodies with different configurations than the locking pieces 35. The intermediate pieces 36 could also be dispensed with completely and locking pieces 35 of different height could be used for drawers of different height .

[0052] Other modifications of the embodiment shown are possible, without leaving the scope of the invention. Thus, for example, the locking bolts 7 do not have to have cross-sectional shapes

circular, but also, for example, square or rectangular cross-sectional shapes. List of reference numbers

5

one Drawer

2

Furniture body

3

Extraction Guide

4

Body rail

5

Drawer rail

10

6 Extraction Direction

7

Locking bolt

8

Arm

9

Locking unit

10

 Rail

fifteen

eleven First thrust element

12

Second thrust element

13

 Spacer

14

 Axis

fifteen

 Gear notch

twenty

16  Support surface

17, 17 ’

Contact section

18

 Guide way

19

 Lock surface

twenty

 Interlocking piece

25

twenty-one First drive surface

22

 Axis

2. 3

 Interlocking heel

24

 Interlocking pivot

25

Second drive surface

30

26  Damping element

27

 Lever

28

 Axis

29

 Cylinder

30

Piston rod

35

31 Fixing piece

32

Introduction spring

33

Center interlocking part

3. 4

Lever arm

35

 Locking piece

40

36  Intermediate piece

37

 Guide tongue

38

 Guide notch

39

 Guide way

40

 Guide way

Four. Five

41  Stump

42

 Stump

43

 Pivot

44

Guide nerve

Four. Five

Guide nerve

fifty

46  Butt Pivot

Claims (12)

one.

 Extraction locking device for at least two drawers (1), alternatively removable from a furniture body (2) in an extraction direction (6) and can be introduced against the extraction direction (6), which comprises for each of the drawers (1) a locking bolt (7) displaced in the extraction direction (6) during the drawer extraction (1) and against the extraction direction (6) during the introduction of the drawer (1), as well as for each of the drawers (1) it comprises a locking unit (9) that is movable in a vertical direction with respect to the furniture body (2) and has a first pushing element (11), with which the locking bolt (7) collides, moved together with this drawer (1), during removal of the drawer (1) and thereby raising the locking unit (9) and, with it, all possible locking units ( 9) located above this locking unit (9) from a lowered position to an elevated position , characterized in that the upper blocking unit of the blocking units (9) is connected to a damping element (26) which can apply a damping force that counteracts a lowering of this blocking unit (9) from the raised position to the lowered position, because if a drawer (1) is removed, on which at least one other drawer (1) is located, each of the locking units (9), raised together during the extraction of this drawer (1) , is coupled with the next upper locking unit (9) respectively by means of an interlocking piece (20) that is in an interlocked position and because each of the locking units (9) has a second pushing element (12) which, during the extraction of the corresponding drawer, pulls down the blocking unit (9) that presents this second pushing element (12) and, together with it, of all the possible blocking units (9), located above, against of the strength of damping the damping element (26) when the locking bolt (7) moved together with this drawer (1) collides with this second thrust element (12).

2.

 Extraction locking device according to claim 1, characterized in that each of the interlocking pieces (20) can be moved between its locked position, in which it joins or engages two superimposed blocking units (9), and a position released, in which the coupling between these two blocking units (9) is released, the displacement being executed by means of the blocking bolt (7), which interacts with the upper blocking unit of these two blocking units (9), when start the drawer removal (1), with which this locking bolt (7) moves together.

3.

 Extraction locking device according to claim 2, characterized in that a respective locking part (20) is rotatably supported around a horizontal axis (22) in one of the two locking units (9), attachable by means of the part interlocking (20), for the displacement between its interlocked position and its released position and because for the displacement of the interlocking part (20) from its interlocked position to its released position at the start of the drawer extraction (1), the bolt of Locking (7) collides with a first drive surface (21) of the interlocking part (20).

Four.

Extraction locking device according to claim 3, characterized in that the interlocking part

(20) is rotatably supported on the upper locking unit of the two locking units (9) attachable by means of the interlocking part (20).

5.

 Extraction locking device according to claim 3 or 4, characterized in that in the locked position of the interlocking part (20), an interlocking pivot (24) arranged in the other locking unit of the two locking units (9) attachable by means of the interlocking part (20) is embraced by an interlocking heel (23) of the locking part (20).

6.

Extraction locking device according to one of claims 2 to 5, characterized in that for locking two drive units (9), superimposed and separated first, when the upper locking unit (9) is lowered from its raised position to its lowered position, a second drive surface (25) of the interlocking part (20) collides with a part of that locking unit of the two locking units (9) which non-rotatably supports the interlocking part (20), and rotates thus the interlocking piece (20) of its locked position to its released position, and because the interlocking piece (20) in the lowered position of the upper locking unit (9) rotates back to its locked position.

7.

 Extraction locking device according to one of claims 1 to 6, characterized in that when a drawer (1) is removed, after a part of the total drainage path of the drawer (1), the locking bolt (7), moved together with this, it is disengaged from the corresponding blocking unit (9) and because this blocking unit (9), raised by the blocking bolt (7) during drawer removal (1), and the possible blocking units (9 ), located above and elevated together with it, are held in the raised position by a respective spacer

(13) that is in an active position and that during the extraction and introduction of the drawer (1) is moved by the locking bolt (7) between an active position and a passive position, in which it releases the locking unit high (9) or high blocking units (9).

8.

Extraction locking device according to one of claims 1 to 7, characterized in that in order to configure an automatic introduction, the upper locking unit of the blocking units (9) is requested by an introduction spring (32) from its raised position to Your position lowered.

9.

 Extraction locking device according to one of claims 1 to 8, characterized in that a rail (10), fixed with respect to the furniture body (2), supports the locking units (9) in a displaceable manner in a vertical direction.

10. Extraction locking device according to one of claims 1 to 9, characterized in that two superimposed blocking units are movably guided towards each other, engaging a guide tab (37) of one of the blocking units (9 ) in a guide notch (38) of the other locking unit (9). 11. Extraction locking device according to one of claims 1 to 9, characterized in that the first 10 pushing element (11) is a first pushing surface pointing downwards with a downward inclination in the direction of extraction (6). 12. Extraction locking device according to one of claims 1 to 11, characterized in that the Second pushing element (12) is a second pushing surface that points upwardly with an upward inclination 15 against the extraction direction (6). 13. Extraction locking device according to claims 11 and 12, characterized in that the first and second thrust surface respectively extend over more than three quarters of the extension of the blocking unit (9) measured in the extraction direction ( 6), preferably for the entire extent respectively of the 20 locking unit (9) measured in the extraction direction (6).