EP4048122B1 - Combination of movement device and synchronisation device for pull-out guides for a drawer - Google Patents

Description

The present invention relates to an arrangement of two pull-out guides for a drawer that can be mounted on opposite sides of a furniture body, with a body rail that can be arranged on one side of a furniture body, a drawer rail that is movably mounted on the body rail in the opening and closing directions and can be attached to a drawer, wherein the drawer rail has an upper side facing the drawer and an underside spaced from the upper side by at least one side web, and a storage device for a synchronization rod of a synchronization device of the arrangement, wherein the storage device has a fastening area for the synchronization rod, the fastening area below the underside of the drawer rail is arranged. The invention also relates to a piece of furniture with a drawer and a stated arrangement.

In order to move movable furniture parts, in particular drawers, relative to a furniture body, they are usually mounted so that they can move in the opening and closing directions via pull-out guides comprising a body rail and a drawer rail. With such furniture fittings, synchronization devices are often used, which enable even opening and closing on both sides and help prevent the drawer from tilting and thus jamming.

An example of such furniture fittings can be found in the EP 3 282 895 B1 out. The disadvantage of this furniture fitting is that the drive devices arranged on both sides in the form of ejection devices are relatively wide and take up a lot of space.

Pull-out guides are already known from the prior art in the writings US 2008/036345 A1 , CN 105 433 618 A , EP 2 636 340 B1 as well as EP 2 644 052 B1 known.

The object of the present invention is therefore to create an alternative or improved arrangement to the prior art. In particular, the space requirement should be as small as possible.

This is achieved by an arrangement with the features of claim 1.

Accordingly, it is provided according to the invention that the fastening area (preferably horizontal in the installed position) is arranged below the underside of the drawer rail. This makes it possible for the synchronization bar to bridge the shutter rail. This in turn means that the at least one drive device can be arranged between the drawer rail and the furniture body. According to the invention it is provided that at least one drive device is provided for the drawer and the drawer and the synchronization device is a synchronization device comprising the synchronization rod for synchronizing movements of the drawer rail or movements of the at least one drive device, the at least one drive device being between the drawer rail and the body rail is arranged.

The terms "horizontal", "vertical", "top" and "bottom" always refer to the installed state of the pull-out guide or furniture fitting in the furniture body.

Preferred embodiments are set out in the dependent claims. According to a preferred exemplary embodiment, it is provided that the fastening area is arranged between the drawer rail and the body rail. This means that any drive device that may be present can also be used between These two rails can be arranged, which is why the entire unit can be very narrow. This means that the maximum width of the pull-out guide consisting of the body rail, drawer rail, storage device and any drive device, measured in the horizontal direction and at right angles to the opening direction, is less than 100 mm, preferably less than 75 mm. This width is particularly preferably in a range between 40 mm and 70 mm.

In order to enable movement transfer from the synchronization rod to other components, the invention provides that the fastening area is the area in which the synchronization rod contacts the bearing device.

The storage device must be designed in such a way that the synchronization rod can be stored on it and fastened in the fastening area. It is preferably provided that the storage device has a carrier attached to the body rail or to the drawer rail and a receiving part for the synchronization rod that is movably, preferably rotatably, mounted on the carrier.

If the receiving part is rotatably mounted, it is preferably provided that the axis of rotation runs in a horizontal direction and at right angles to the opening direction of the drawer.

It can be provided that the synchronization rod can be connected to the bearing device, for example via a snap connection. Other detachable connection variants are also possible. In itself, it is possible for the fastening area to be designed in the form of a projection to which the synchronization rod can be fastened. However, it is preferably provided that the fastening area is designed as a recess in the receiving part.

Furthermore, it is preferably provided that the synchronization rod has two ends and is mounted via its ends in the fastening areas of the storage devices, with the synchronization rod running below the drawer rails. This means that the synchronization rod does not run between the drawer rails or above the drawer rails, but completely below these drawer rails. It is particularly preferred for this purpose that the synchronization rod is aligned horizontally when installed and runs completely vertically below the shutter rails in the installed position.

According to the invention, the arrangement has at least one drive device for the drawer, preferably mounted on one of the body rails. It is preferably provided that the arrangement has two drive devices for the drawer (each mounted on one of the body rails).

It is possible for the at least one drive device to be designed as a retraction device for retracting the drawer from an open position into the closed position. According to a preferred exemplary embodiment, however, it is provided that the at least one drive device is designed as an ejection device for ejecting the drawer, wherein the ejection device can be unlocked by pressing on the drawer in the closed position and the drawer can be moved by the unlocked ejection device from the closed position in the opening direction and in an open position can be brought.

According to a specific exemplary embodiment, it is preferably provided that the at least one drive device designed as an ejection device has a housing, an ejection carriage movably mounted in the housing, an ejection force accumulator attached to the housing and the ejection carriage, a heart-shaped guide track formed in the housing, a locking pin which can be locked in a locking recess of the guide track and one on Ejection slide has movably mounted control lever having the locking pin.

For a simple and space-saving construction, it is preferably provided that the housing forms the carrier of the bearing device. The receiving part of the bearing device is therefore movably mounted directly in the housing.

For a simple transmission of movement between the synchronization rod and the drive device, it is preferably provided that a, preferably gear-shaped, coupling element is attached or formed on the receiving part, which can be coupled in a motion-transmitting manner to a, preferably rack-shaped, coupling element. Particularly preferably, the coupling element is attached or formed on a synchronization carriage which is movably mounted on the housing, preferably linearly.

The exact alignment and position of the synchronization rod is arbitrary, as long as a synchronizing transfer of movement between the two sides of the pull-out guide is possible. It is preferably provided that the synchronization rod is oriented (horizontally when installed and) at right angles to the opening and closing directions.

Finally, protection is also sought for a piece of furniture with a furniture body, at least one drawer (movable in the opening direction) and a said arrangement.

Fig. 1

schematisch ein Möbel mit mehreren bewegbaren Möbelteilen in Form von Schubladen,

Fig. 2

perspektivisch eine Schublade mit Schubladenausziehführungen und Antriebsvorrichtungen für ein bewegbares Möbelteil,

Fig. 3

eine Anordnung aus zwei über eine Synchronisierungsstange synchronisierten Antriebsvorrichtungen,

Fig. 4

perspektivisch eine Korpusschiene,

Fig. 5

perspektivisch eine Aufziehführung samt Lagervorrichtung und noch nicht angebrachter Synchronisierungsstange,

Fig. 6

ein Detail auf Fig. 5,

Fig. 7

die eine Aufziehführung samt Lagervorrichtung mit angebrachter Synchronisierungsstange,

Fig. 8

ein Detail aus Fig. 7,

Fig. 9

eine andere Perspektive der Ausziehführung,

Fig. 10

eine Seitenansicht der Ausziehführung,

Fig. 11

ein Detail aus Fig. 10 und

Fig. 12

eine Draufsicht auf eine Antriebsvorrichtung samt Lagervorrichtung.

Further details and advantages of the present invention are explained in more detail below based on the description of the figures with reference to the exemplary embodiments shown in the drawings. Show in it:

Fig. 1

schematically a piece of furniture with several movable furniture parts in the form of drawers,

Fig. 2

perspectively a drawer with drawer pull-out guides and drive devices for a movable furniture part,

Fig. 3

an arrangement of two drive devices synchronized via a synchronization rod,

Fig. 4

perspectively a body rail,

Fig. 5

in perspective a winding guide including a bearing device and a synchronization rod that has not yet been attached,

Fig. 6

a detail Fig. 5 ,

Fig. 7

which has a winding guide including a bearing device with an attached synchronization rod,

Fig. 8

a detail Fig. 7 ,

Fig. 9

a different perspective of the pull-out guide,

Fig. 10

a side view of the pull-out guide,

Fig. 11

a detail Fig. 10 and

Fig. 12

a top view of a drive device including storage device.

In Fig. 1 In general, a piece of furniture 8 is shown with a furniture body 9 and a total of four movable furniture parts in the form of drawers 2. Each drawer 2 consists of at least a drawer 10 and a front panel 11. The drawers 2 are attached to the furniture body 9 via a (drawer) pull-out guide 20, consisting of a drawer rail 13 and a body rail 14 (and possibly a middle rail, not shown).

A drive device 1 is shown schematically in the top drawer. The drive device 1 has a housing 3. In this case, this housing 3 is attached to the drawer rail 13 (in the schematic representation according to Fig. 1 the housing 3 corresponds to the drawer rail 13). The drive device 1 has an ejection device 4, the ejection carriage 41 and the ejection force accumulator 42 of this ejection device 4 being shown schematically. The locking device 5 has a guide track 52 formed in the housing 3 and in the (in this case heart-shaped) guide track 52 guided locking pin 51. A driver 15 is arranged on the body rail 14 (or on the furniture body 9 itself), with which the ejection device 4 engages at least in sections. However, the arrangement can also be reversed: That is, the drive device 1 is assigned to the body rail 14, while the driver 15 is assigned to the movable furniture part. This top drawer 2 is in the open position OS.

When the drawer 2 is moved from this open position OS in the closing direction SR, the locking pin 51 moves in a closing section of the guide track 52. The ejection force accumulator 42 is tensioned by a relative movement between the ejection carriage 41 and the housing 3.

In the closed position SS (third drawer from the top), the ejection force accumulator 42 is fully tensioned. This closed position SS can be achieved by a purely manual closing movement. Alternatively, the drawer 2 - if present - can be moved or retracted into the closed position SS by the retraction device 16, which is only shown schematically and is integrated into the pull-out guide 20.

Starting from this closed position SS, the drawer 2 reaches the push-over position ÜS (bottom drawer in.) by pressing on the drawer 2 Fig. 1 ). This results in the unlocking of the locking device 5. After the overpressing carried out in the closing direction SR - as soon as the user no longer presses on the drawer 2 - the drawer 2 is ejected by the drive device 1 in the opening direction OR. As a result, the drawer 2 reaches the open position OS according to the second drawer 2 from above. In this position the drawer 2 can z. B. can be gripped over the front panel 11 and moved further by hand into the position according to the first drawer 2 from above.

In Fig. 2 A drawer 2 with a drawer 10 and a front panel 11 is shown in perspective. In addition, an arrangement of two pull-out guides 20, each with two drawer rails 13 and two body rails 14, is shown, with one drawer rail 13 and one body rail 14 of the pull-out guide 20 being provided on both sides of the drawer 2. Further shows Fig. 2 a drive device 1. The drive device 1 is attached to the body rail 14. This drive device 1 (or its housing 3) extends in the closing direction SR of the drawer 2. Especially in the case of smaller or narrower drawers 2, it is sufficient if only one drive device 1 is assigned to the drawer 2. This can (as shown) be assigned to the right-hand pull-out guide 20 (but also to the left-hand pull-out guide 20).

For wider or larger drawers 2, it is advantageous - especially to avoid tilting or jamming of the drawer 2 in the furniture body 9 - if drive devices 1 and 1 'synchronized with one another are provided on both sides of the drawer 2. This is suitable in Fig. 3 an arrangement 7 consisting of a (first) drive device 1 and a second drive device 1 'is shown. These two drive devices 1 and 1 'are connected to one another via a synchronization rod 65. (This arrangement 7 is part of a higher-level arrangement consisting of two pull-out guides 20 and the arrangement 7) Specifically, sections of the opening movement and the closing movement of the drive devices 1 and 1 'are synchronized with one another. The first drive device 1 is designed to be mirror-symmetrical to the second drive device 1'. Otherwise, the drive devices 1 and 1 'are identical.

Fig. 4 shows a perspective view of a profile-shaped body rail 14. This body rail 14 can be mounted on a side wall of a furniture body 9 via the vertical side web V. The body rail 14 has a guide area F, on which a drawer rail 13 is movably mounted and guided (for example via corresponding rollers).

The body rail 14 has a recess A in one end region. In the area of this recess A, a bearing device 17 can be connected to the body rail 14. When installed, this recess A is located on a side of the body rail 14 facing away from the front panel 11.

Fig. 5 shows a perspective view of the body rail 14 together with the drawer rail 13 movably mounted on it. In one end region, the drawer rail 13 has a connecting device 23 for releasably connecting a drawer 2 to this drawer rail 13. In the other end area it can be seen that a storage device 17 is attached to the body rail 14. A synchronization rod 65 is also shown, but is not yet connected to the bearing device 17 or is in contact.

In Fig. 6 is a detail Fig. 5 shown. For example, the (horizontally oriented) top side O and the (vertically oriented) side web S of the drawer rail 13 can be seen. Furthermore, the carrier 18 and the receiving part 19 are shown, which together form the storage device 17. The drawer rail 13, the body rail 14 and the storage device 17 together form a pull-out guide 20. A recess is formed in the receiving part 19. The surface of this recess forms the fastening area B, which contacts this synchronization rod 65 when the synchronization rod 65 is attached. The fastening area B is located between the drawer rail 13 and the body rail 14.

In Fig. 7 the synchronization rod 65 is shown in this position attached to the bearing device 17. Specifically, there is a positive hold between the synchronization rod 65 and the receiving part 19.

In Fig. 8 is a detail Fig. 7 shown. In addition to the top side O and the side bar S, the (horizontally oriented) underside U of the drawer rail 13 can also be seen. The side bar S connects the top O with the Underside U. The synchronization rod 65 contacts the fastening area B of the receiving part 19 of the storage device 17. The fastening area B is arranged (horizontally in the installed position) below the underside U of the drawer rail 13. As a result, the synchronization rod 65 also runs (entirely) below the drawer rail 13. The carrier 18 of the storage device 17 is part of a housing 3 of a drive device 1, 1 '.

Fig. 9 shows a pull-out guide 20 in perspective from a different point of view. In addition to the two rails 13 and 14 and the synchronization rod 65, a drive device 1, 1 'can also be partially seen. This drive device 1, 1' is arranged between the drawer rail 13 and the body rail 14.

In Fig. 10 the pull-out guide is in accordance with Fig. 9 shown in a side view.

Fig. 11 shows a detail Fig. 10 , which shows the area of the storage device 17. The synchronization rod 65 shown in cross section is held in the fastening area B of the receiving part 19 of the bearing device 17. Outer surfaces of the synchronization rod 65 contact the fastening area B. The carrier 18 is part of the housing 3. Can be seen in Fig. 11 also the body rail 14 and the drawer rail 13. It is essential that the fastening area B (as well as the synchronization rod 65) is arranged below the underside U of the store receipts 13. As a result, the synchronization rod 65 runs below the drawer rail 13 and "bridges" it. The drive device 1, 1' can thus be arranged between the body rail 14 and the drawer rail 13, which requires less space. This means that the drive device 1, 1' does not have to be arranged on a side of the drawer rail 13 facing away from the body rail 14, which would lead to an overall wider construction.

Fig. 12 shows a top view of part of a drive device 1, 1 'including bearing device 17. Specifically, the heart-shaped guide track 52 formed in the housing 3 is shown. The locking pin 51 is in a position after overpressing and after unlocking in which the ejection movement takes place. The locking pin 51 contacts the driving element 64 of the synchronization carriage 63. As a result, that area of the synchronization carriage 63 on which the rack-shaped coupling element 22 is arranged also moves. According to the representation Fig. 12 the individual teeth of this rack-shaped coupling element 22 are not visible because the teeth protrude downwards from the plane of the sheet. In contrast, at least one tooth of the gear-shaped coupling element 21 can be seen. By linearly moving the coupling element 22, the teeth mesh with one another, whereby the gear-shaped coupling element 21 is rotated. Since the gear-shaped coupling element 21 is connected to the receiving part 19, the receiving part 19 rotates accordingly relative to the carrier 18 of the bearing device 17. In the exemplary embodiment shown, the carrier 18 is formed in one piece with the housing 3 of the drive device 1, 1 '. The synchronization carriage 63 (including the driving element 64), together with the two coupling elements 21 and 22 and the synchronization rod 65, not shown here, forms the synchronization device 6. In this case, the synchronization device 6 serves to synchronize two drive devices 1 and 1 'arranged on both sides of a drawer 2 .

However, it is also possible for the synchronization device 6 to serve only to synchronize the movement of the two drawer rails 13. This corresponds to so-called lateral stabilization.

List of reference symbols:

1

Drive device

2

Drawer

3

Housing

4

ejection device

41

Ejection carriage

42

Ejection force storage

5

Locking device

51

Locking pin

52

guideway

53

Control lever

6

Synchronization device

63

Synchronization carriage

64

Driving element 64

65

Synchronization rod

7

arrangement

8th

Furniture

9

Furniture body

10

Push container

11

Front panel

13

Shop rail

14

Body rail

15

taker

16

Retraction device

17

Storage device

18

carrier

19

Recording part

20

Pull-out guide

21

Coupling element

22

Coupling element

23

Connection device

O.S

open position

SS

Closed position

O.S

overpressure position

S.R

Closing direction

OR

Opening direction

O

Top

S

side bridge

U

bottom

b

Fastening area

v

vertical side bar

A

recess

Claims (14)

1. An arrangement of two pull-out guides (20) for a drawer (2) being configured to be mounted to opposing sides of a furniture carcass (9), comprising:

   - a carcass rail (14) configured to be arranged on a side of a furniture carcass (9),

   - a drawer rail (13) configured to be arranged on a drawer (2), the drawer rail (13) being displaceably supported on the carcass rail (14) in an opening- and closing direction (OR, SR), wherein the drawer rail (13) has an upper side (O) facing towards the drawer (2) and a lower side (U) spaced from the upper side (O) by at least one side limb (S), and

   - a bearing device (17) for a synchronization rod (65) of a synchronization device (6) of the arrangement, wherein the bearing device (17) includes a fastening region (B) for the synchronization rod (65),

   wherein

   at least one drive device (1, 1') for the drawer (2) is provided and the synchronization device (6) is a synchronization device (6) comprising the synchronization rod (65) for synchronizing movements of the drawer rail (13) or of movements of the at least one drive device (1, 1'), wherein the at least one drive device (1, 1') is arranged between the drawer rail (13) and the carcass rail (14), wherein the fastening region (B) is that region in which the synchronization rod (65) contacts the bearing device (17),

   characterized in that the fastening region (B) is arranged below the underside (U) of the drawer rail (13).
2. The arrangement according to claim 1, characterized in that the fastening region (B) is arranged between the drawer rail (13) and the carcass rail (14).
3. The arrangement according to claim 1 or 2, characterized in that that the bearing device (17) includes a carrier (18) arranged on the carcass rail (14) or on the drawer rail (13), and a receiving portion (19) for the synchronization rod (65), the receiving portion (19) being movably, preferably pivotally, arranged on the carrier (18).
4. The arrangement according to claim 3, characterized in that the fastening region (B) is configured as a recess in the receiving portion (19).
5. The arrangement according to one of the preceding claims, characterized in that the synchronization rod (65) has two ends and is supported via its ends in the fastening regions (B) of the bearing devices (17), wherein the synchronization rod (65) extends below the drawer rails (13).
6. The arrangement according to claim 5, characterized in that the synchronization rod (65), in an installed condition, is aligned horizontally and extends vertically below the drawer rails (13).
7. The arrangement according to one of the preceding claims, characterized by at least one drive device (1, 1') for the drawer (2) mounted on one of the carcass rails (14).
8. The arrangement according to one of the preceding claims, characterized in that the drive device (1, 1') is configured as an ejection device (4) for ejecting the drawer (2), wherein the ejection device (4) is configured to be unlocked by applying pressure to the drawer (2) located in the closed position (SS), and the drawer (2) can be moved from the closed position (SS) in the opening direction (OR) and can be brought into an open position (OS) by the unlocked ejection device (4) .
9. The arrangement according to claim 8, characterized in that the at least one drive device (1, 1') configured as an ejection device (4) each has a housing (3), an ejection slider (41) movably supported in the housing (3), an ejection energy storage member (42) fixed to the housing (3) and to the ejection slider (41), a heart-shaped guide track (52) formed in the housing (3), a locking pin (51) configured to be locked in a locking recess of the guide track (52), and a control lever (53) movably supported on the ejection slider (41), the control lever (53) having the locking pin (51).
10. The arrangement according to claim 9, characterized in that the housing (3) forms the carrier (18) of the bearing device (17) .
11. The arrangement according to claim 9 or 10, characterized in that a, preferably gear-shaped, coupling element (21) is formed or arranged on the receiving portion (19), the coupling element (21) being configured to be coupled to a, preferably tooth racked-shaped, coupling element (22) in a movement-transmitting manner, wherein the coupling element (22) is formed or arranged on a synchronization slider (63) movably, preferably linearly, supported on the housing (3).
12. The arrangement according to one of the preceding claims, characterized in that the synchronization rod (65) is aligned perpendicular to the opening- and closing direction (OR, SR).
13. An item of furniture (8) comprising a furniture carcass (9), at least one drawer (2), and the arrangement according to one of the claims 1 to 12.
14. The item of furniture according to claim 13, characterized in that the fastening region (B), in an installation position of the pull-out guides (20), is arranged horizontally below the underside (U) of the drawer rail (13).

Images