EP2182154B1 - Guiding device for sliding doors - Google Patents

Abstract

The device has a linear damper (9) for decelerating an opening movement of sliding doors (2), where the sliding doors are movably supported at a rail and are movable from a closed position to an opened position. The linear damper has a tappet (11) inserted into a damper housing (10), where the sliding doors cover each other in the opened position and an area of the sliding doors is releasable. The housing is connected with one of the sliding doors by a holder (19). A piston rod is movable relative to the damper housing. The tappet is prestressed by a spring in a withdrawn position.

Description

The present invention relates to a guide device for sliding doors, in particular for furniture, according to the preamble of claim 1.

From the WO 2006/114352 a damping device for sliding doors is known in which a driver can be coupled with a movable furniture part. During a closing movement, the driver is coupled to the furniture part shortly before an end position and then braked in the movement, for which purpose an eddy-current brake is provided. The damping device can be coupled with a self-closing, so that the sliding door can be easily moved to the closed position. This results in the problem that the most heavy sliding doors can be moved in the opening direction to an end position and are braked relatively abruptly there, since no damping device is provided there.

From the DE 20 2006 017402 U a sliding door is known, which is mounted horizontally movable on a rail, wherein a shock absorber is provided on a furniture body. When the sliding door is moved from the open position to the closed position, this shock absorber can cause deceleration, avoiding an abrupt stop.

The GB 2 416 380 , which discloses all features of the preamble of claim 1, discloses a fluid damper with a cylindrical housing in which a plunger is movably mounted. The plunger is biased by a spring in the extended position and can be retracted for damping in the housing. The housing can be mounted on doors or other moving components.

Further, the EP 1 700 985 a damper for sliding doors to avoid hitting the sliding doors.

It is therefore an object of the present invention to provide a guide device for sliding doors, which avoids a hard striking a sliding door in a movement in the opening direction.

This object is achieved with a guide device having the features of claim 1.

According to the invention, the guide device for braking an opening movement of a sliding door comprises a linear damper, which has a plunger which can be pushed into a housing. As a result, a sliding door can also be braked in the opening direction before reaching an end position in order to avoid a hard impact. This reduces the material load and avoids loud impact noises.

According to the invention the housing is connected via a holder with a sliding door and another sliding door forms a stop for the plunger. For most sliding doors are used in furniture that are movable in the opening direction in a covering position, so that the still closed sliding door can serve as a stop. In particular, if three sliding doors are provided, a stop can be provided on the middle sliding door, which considerably simplifies the construction and assembly of the guiding device.

On a sliding door, a fitting plate with a roller is fixed and the housing is mounted on the fitting plate. As a result, existing guide devices for sliding doors can be easily retrofitted with a linear damper. According to the invention, two projecting pins are provided for this purpose on the fitting plate and the holder has two openings which are penetrated by the pins. The pins are used in existing guide devices as a fastening device for sleeve-shaped rubber buffer. As a result, the linear damper can be retrofitted very easily.

Preferably, in the housing, a linear damper, for example, designed as a gas or fluid damper with a damper housing and a movable relative to the damper housing piston rod. Such fluid damper can cause a high damping force at high impact speeds, while at low speeds only a small damping force is present, as then threatens no hitting the sliding door at high speed. The plunger of the linear damper can be biased by a spring in an extended position, so that automatically a retraction of the plunger takes place in the starting position when the sliding door is closed again. The force of the spring is so dimensioned that the sliding door is not moved in the fully open end position by the plunger, but this remains in the depressed position. Only when the sliding door is closed, the plunger is then moved back into the extended position.

Preferably, an angle is provided for guiding a sliding door, in particular the middle sliding door, which engages over another sliding door, wherein the angle forms a stop for the plunger. As a result, no additional component must be mounted for the formation of a stop.

Preferably, the guide device comprises three sliding doors, wherein two of the sliding doors on the same plane are movably held on the rail. Most of the middle rail is mounted in a second level, so that the sliding doors can be moved to open in a covering position.

Figur 1

eine Draufsicht auf eine erfindungsgemäße Führungsvor- richtung für Schiebetüren;

Figuren 2A und 2B

zwei Ansichten eines ersten Lineardämpfers der Führungs- vorrichtung der Figur 1;

Figur 3

eine perspektivische Ansicht des Lineardämpfers der Figur 2 in der Anschlagposition;

Figuren 4A und 4B

zwei Ansichten eines zweiten Lineardämpfers der erfin- dungsgemäßen Führungsvorrichtung;

Figur 5

eine perspektivische Ansicht des zweiten Lineardämpfers in der Anschlagposition; und

Figuren 6A und 6B

zwei Ansichten eines Lineardämpfers einer nicht erfin- dungsgemäßen Fühnmgsvorrichtung.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it:

FIG. 1

a plan view of a guide device according to the invention for sliding doors;

FIGS. 2A and 2B

two views of a first linear damper of the guide device of FIG. 1 ;

FIG. 3

a perspective view of the linear damper of FIG. 2 in the stop position;

FIGS. 4A and 4B

two views of a second linear damper of the inventive guide device;

FIG. 5

a perspective view of the second linear damper in the stop position; and

Figures 6A and 6B

two views of a linear damper of a non-inventive Fühnmgsvorrichtung.

A guide device 1 comprises three sliding doors 2, 3 and 4, which are mounted on a rail 5 with two tracks according to movable in two planes. The rail 5 is fixed to a furniture body 30, in particular a cabinet furniture. Further, 5 damping devices 6, 7 and 8 are provided on the rail, which provide in a process of the sliding doors 2, 3 and 4 in the closed position for damping, in addition, a self-closing device may be provided. The damping devices 6, 7 and 8 may be formed as shown in the WO 2006/114352 is described.

In order to make a damping in a method of sliding doors 2, 3 and 4, when they are moved to a maximum open position in which overlap the sliding doors 2 and 3 or 3 and 4, on the outer sliding door 2, a linear damper 9 with a housing 10 and a displaceably arranged to the housing 10 plunger 11 ( Fig. 2A and 2 B ). The housing 10 is connected via a holder 19 with a fitting plate 12, on which a roller 13 is rotatably mounted. On opposite sides of the roller 13 projecting pins 14 and 15 are provided, on which annular rubber buffers can be mounted. When using a linear damper with the housing 10 and the plunger 11 but can be dispensed with appropriate rubber buffer. The holder 19 for the housing 10 has two protruding bolts 20 which are insertable into corresponding openings 21 on the fitting plate 12, so that the holder 19 is stably held on the fitting plate 12. The holder 19 can be formed integrally with the housing 10 or be connected by mechanical fastening means with this.

In FIG. 3 a stop position for the linear damper 9 is shown. The middle sliding door 3 has an angle 16, which can overlap one of the outer sliding doors 2 or 4 and on which a roller 17 is mounted. At a maximum opening position of the middle sliding door 3 or the outer sliding door 2, an end edge 18 of the angle 16 engages with the displaceably mounted plunger 11 and presses it into the housing 10. In the housing 10, a linear damper 9 is provided, so that the opening movement is damped. The plunger 11 is biased by a spring in the housing 10 in the open position, wherein the force of the spring is so small that the central sliding door 3 is not moved in the maximum open position in the closed direction.

In the FIGS. 4A and 4B a second embodiment of a linear damper 9 is shown, which is mounted on the fitting plate 12 on the outer sliding door 2. The housing 10 of the linear damper 9 is fixed on the fitting plate 12 via a modified holder 19 ', the holder 19' having two spaced-apart openings 20 ', which are designed such that they are attached to the pins 14 and 15 on the fitting plate 12 can be. In this case, the holder 19 'can be clamped to the fitting plate 12, so that no further fastening means are necessary. Further, on the holder 19 'pins 21' are formed, which can be inserted into corresponding openings 21 on the fitting plate 12. As a result, the linear damper 9 can be mounted without tools on the fitting plate 12, especially when retrofitting.

In the FIGS. 6A and 6B a not erfindungdgemäßes embodiment of a linear damper 9 is shown, which is mounted on a housing 10 'on an outer sliding door 4. The linear damper 9 comprises a housing 10 ', on which a protruding plate 25 is provided, are provided on the openings 26 for screws. The housing 10 'of the linear damper 9 is mounted so that it is aligned with a side edge of the outer sliding door 4 frontally. From the housing 10 ', the plunger 11 protrudes to the side.

In the maximum opening position of the outer sliding door 2 or the outer sliding door 4, the linear damper 9 can be operated. For this purpose, a stop 10 'is mounted on the outer sliding door 2, which has the shape of the housing 10', but no plunger 11 identifies. The stop 10 'also has a protruding plate 25 which is fixed by screws on the outer sliding door 2. The stopper 10 'is designed to be flush with the outer sliding door 2 on the edge side towards the plunger 11, so that when the outer sliding doors 2 and 4 move together, the plunger 11 is pressed into the housing 10'. Again, a linear damper 9 is moved in the housing 10 'for damping.

As a linear damper 9 known fluid damper can be used, in which a damper housing is provided, in which an oil is arranged, which is moved by the movement of a piston in the damper housing. The piston can be moved via a piston rod, which is coupled to the plunger or the housing 10, 10 '.

Further, in the housing 10 and 10 may be provided a spring with a small spring force, which moves the plunger 11 against the force of the linear damper 9 in the extended position.

In the embodiment shown, three sliding doors 2, 3 and 4 are provided, which are damped by a linear damper 9 when moving in the opening direction before the maximum opening position. It is of course also possible to provide only two sliding doors 2 and 3 or more than three sliding doors 2, 3 and 4 on the guide device. In addition, the number of levels for the sliding doors 2, 3 and 4 of two can be increased even more, especially if several sliding doors are to be moved.

LIST OF REFERENCE NUMBERS

1

guiding device

2

Outer sliding door

3

Middle sliding door

4

Outer sliding door

5

rail

6

damping device

7

damping device

8th

damping device

9

linear damper

10

casing

10 '

casing

11

tappet

12

fitting plate

13

caster

14

spigot

15

spigot

16

angle

17

caster

18

front edge

19

holder

19 '

holder

20

bolt

20 '

openings

21

opening

21 '

spigot

25

plate

26

openings

30

furniture body

Claims (6)

1. Guiding mechanism (1) for sliding doors (2, 3, 4), in particular for furniture, having at least two sliding doors (2, 3, 4) which are mounted in a displaceable manner on at least one rail (5) and are moveable from an adjacent closed position into an opened position in which they cover one another and in which a field of a sliding door (2, 3, 4) is exposed, wherein, in order to brake an opening movement of a sliding door (2, 3, 4), there is provided a linear damper (9) which has a plunger (11) that can be pushed into a housing (10, 10'), wherein a fitting plate (12) having a running roller (13) is fixed to the sliding door (2, 4), characterized in that the housing (10, 10') is connected to the sliding door (2, 3, 4) via a holder (19, 19'), the holder (19, 19') is mounted on the fitting plate (12), and in that two protruding pins (14, 15) are provided on the fitting plate and the holder (19') has two openings (20') through which the pins (14, 15) engage, or the holder (19) for the housing (10) has two protruding bolts (20) which are inserted into corresponding openings (21) in the fitting plate (12).
2. Guiding mechanism according to Claim 1, characterized in that the other sliding door (2, 3, 4) forms a stop (10', 18) for the plunger (11).
3. Guiding mechanism according to Claim 1 or 2, characterized in that a gas or fluid damper having a damper housing and a piston rod that is moveable in relation to the damper housing is provided in the housing (10, 10').
4. Guiding mechanism according to one of Claims 1 to 3, characterized in that the plunger (11) is preloaded by a spring in an extended position.
5. Guiding mechanism according to one of Claims 1 to 5, characterized in that a bracket (16), which engages over the sliding door (2, 4), is provided to guide an other sliding door (3), and the bracket (16) forms a stop (18) for the plunger (11).
6. Guiding mechanism according to one of Claims 1 to 8, characterized in that the guiding mechanism comprises three sliding doors (2, 3, 4) and two of the sliding doors (2, 4) are held on the rail (5) such as to be displaceable in the same plane.

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