EP2802239B1 - Pull-out guide - Google Patents

Description

The present invention relates to a pullout guide according to the preamble of claim 1.

The DE 199 45 781 discloses a pullout drawer slide in which a rotary damper is provided. The rotary damper is not effective over the entire travel of the pullout guide but only in the area of a self-closing. The rotary damper protrudes laterally from the running rail, so that the damping device can not be used for applications in which a compact space is required due to limited space.

The DE 11 2008 002 079 discloses a console box in which a lid is slidably mounted on a box body. The stability and the guidance accuracy in the storage of such a cover are usually limited. Especially with vehicles, it can quickly come to vibration noise when the leadership is done with too much play.

The US 2011/0187254 discloses a pullout guide comprising a first track rail, a second track rail, and a third track rail between the first and second track rails. Further, a braking device is provided, wherein a first support frame is fixed to the first track on which a rack is arranged, and a second support frame is attached to the second track rail. On the second support frame, a damper is provided, which engages with the rack.

It is therefore the object of the present invention to provide a pullout guide, which allows an exact and damped leadership of the track relative to the guide rail and also has a compact design.

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

According to the invention, a braking device is provided, by means of which the relative movement of the running rail to the guide rail can be braked and which is arranged between the running rail and the guide rail. This results in a particularly compact design and the ergonomics when moving the running rail is improved. By the braking device, a movement of the track is braked, which is advantageous especially when using pull-out guides in various fields of application, to avoid too fast movements of a guided component in the end positions. This minimizes impact noise and vibration, if not eliminates it. In addition, the life of the system is prolonged by the gentle effect of the pullout guide according to the invention.

The pull-out guide according to the invention can be used, for example, in a piece of furniture, in particular in a drawer system, a domestic appliance, in particular in a fume hood, or in a vehicle, in particular in the interior area. In the interior, the use is preferably in a center console, in which a mounted on a pullout guide cover is movable on. The cover may additionally be designed as an armrest and serve to complete a concealed container. Other applications for the pull-out guide according to the invention are possible.

Preferably, the brake device is completely surrounded by the running rail and the guide rail. The running rail and the guide rail can be made strip-shaped and include the braking device.

According to a further embodiment of the invention, the rack of the braking device is aligned parallel to the longitudinal direction of the running rail and fixed to the running rail or the guide rail.

Under guide elements sliding elements, rollers, rolling elements or the like can be understood.

For a stable guidance of the running rail on the guide rail, a C-shaped edge may be formed on opposite longitudinal sides of the guide rail or the running rail, on which two spaced webs of rolling elements are arranged, between which a web of the running rail or the guide rail is arranged. The arrangement of the rolling elements in different tracks an improved guidance is achieved, which also ensures a guide against lifting or in another direction perpendicular to the longitudinal direction of the track.

For a reliable deceleration, the brake device may include at least one rotatably mounted gear meshing with the rack and driving a rotary damper disposed on a carriage. In this case, the rotary damper can be effective over the entire travel of the track, provided that the rack also extends over the entire path of the track.

In order to lock the running rail at least in an end position, a locking receptacle is preferably formed on the carriage, in which a locking element is releasably held when reaching an end position to overcome a limit force. Under the limit force, that force is understood that must be overcome for releasing the locking element from the locking receptacle. Preferably, the carriage may have on opposite sides a locking receptacle, so that in two opposite end positions locking is made possible. As a locking element, for example, a pin, bolts or the like may be provided which can be inserted into the locking receptacle on the carriage.

For a simple assembly of the pullout guide, the carriage can be fixed with the rotary damper on the running rail or the guide rail.

The rotary damper can generate a uniform braking force in different directions of movement, but also generate a different braking force, for example by forming a freewheel. As a rotational damper known fluid damper can be used in which two relatively rotatable parts are provided, which are braked by a damping medium, such as silicone oil, during a movement relative to each other.

Preferably, the rack and / or the engaged gear are made of plastic, but may be made of other materials at higher loads. By a certain plastic combination or by the use of plastic with embedded lubricant or coated plastic (anti-friction coatings, etc.), the wear can be additionally minimized. As a result, the pullout guide can also be used in areas in which conventional lubricants, greases, oils must be dispensed with, for example in the high-quality interior sector.

Figur 1

eine perspektivische Ansicht einer erfindungsgemäßen Auszugsführung;

Figur 2

eine perspektivische Explosionsdarstellung der Auszugsführung der Figur 1;

Figur 3

eine geschnittene perspektivische Ansicht der Auszugsführung der Figur 1;

Figur 4

eine Vorderansicht der Auszugsführung der Figur 1, und

Figuren 5A bis 5C

mehrere Ansichten der Auszugsführung der Figur 1 in unterschiedlichen Positionen.

The invention will be explained in more detail below with reference to an embodiment with reference to the accompanying drawings. Show it:

FIG. 1

a perspective view of a pullout guide according to the invention;

FIG. 2

an exploded perspective view of the pullout guide of FIG. 1 ;

FIG. 3

a sectional perspective view of the pullout guide of FIG. 1 ;

FIG. 4

a front view of the pullout guide the FIG. 1 , and

FIGS. 5A to 5C

several views of the pullout of the FIG. 1 in different positions.

An extension guide 1 comprises a fixable guide rail 2 and a movably mounted running rail 3. Guide rail 2 and running rail 3 may be made of bent metal sheet, in particular sheet steel, and be installed, for example, on a center console of a vehicle to store a cover slidably.

As in the Figures 2 and 3 is shown, a plurality of guide elements in the form of spherical rolling elements 4 is provided for a slidable mounting of the running rail 3, which are held or positioned by a Wälzkörperkäfig 5. The guide rail 2 is strip-shaped and comprises on opposite sides a C-shaped edge 20 having an upper leg 21, a lower leg 22 and a bottom portion 23 formed therebetween. The two C-shaped edges 20 are connected to each other via an extension of the legs 22. At the transition between the legs 21 and 22 and the bottom 23 rounded raceways for the rolling elements 4 are formed.

The running rail 3 comprises a strip-shaped flat bottom portion 30, on which on opposite sides a substantially vertically projecting step 31 is arranged with an outwardly angled web 32. The webs 32 arranged on opposite sides extend approximately parallel to the floor 30. The webs 32 engage between the rolling elements 4 arranged in two webs, so that the running rail 3 is also guided in a direction perpendicular to the longitudinal direction of the running rail 3.

On the guide rail 2, a rack 6 form, force or cohesively fixed. The rack 6 is engaged with a gear 7, which drives a rotary damper 8. The rotary damper 8 comprises each other rotationally movable parts, for example a drum, which are braked relative to one another via a damping medium during a movement. The design of the rotary damper can vary, for example, the same braking force can be generated in a movement in different directions, or it can be generated in one direction, a lower braking force, such as a freewheel. The rotary damper 8 is held on a carriage 9 which is fixed to the running rail 3. For this purpose, the carriage 9 comprises a plurality of locking elements 10, which can be latched in recesses 33 on the running rail 3.

The carriage 9 is made of an elastic material, for example of plastic, and comprises on opposite sides latching receptacles 13 and 14, which serve to limit the movement of the running rail 3 and to releasably fix them in an end position. For releasably holding the running rail 3 in the end positions described below locking elements 11 and 12 can be added in the form of pins in the locking receptacles 13 and 14, which are fixed to the guide rail 2.

In FIG. 4 is the compact design of the pullout guide 1 recognizable. The braking device with the carriage 9, the rotary damper 8, the gear 7 and the rack 6 is completely received between the guide rail 2 and the running rail 3. For a good guide, the webs 32 engage the running rail 3 in the C-shaped edge 20 of the guide rail.

In the FIGS. 5A to 5C the pullout guide 1 is shown in different positions. In FIG. 5A the running rail 3 is shown in a central position, in which the Rastelelemente 11 and 12 spaced from the carriage 9 are arranged and the running rail 3 is movably held in opposite directions on the guide rail 2.

The end positions are characterized in that the running rail 3 has reached the maximum travel relative to the guide rail 2.

In FIG. 5B a first end position is shown, in which the running rail 3 was moved along the guide rail 2, wherein 7 corresponding braking forces were generated by the rotation damper 8 by the rotation of the gear. Upon reaching the end position, the locking element 12 engages in the locking receptacle 13 on the carriage 9, so that the running rail 3 is releasably fixed in the first end position. Only when overcoming the border forces can the Running rail 3 are moved over the center position maximum to the second end position, in FIG. 5C is shown. In this position, the locking element 11 is in the locking receptacle 14 on the opposite side of the carriage 9. As a result, the running rail 3 is also releasably fixed in a closed position on the guide rail 2. The amount of marginal forces in the locking receptacles 13 and 14 and the braking forces can be set differently depending on the application in the end positions and / or directions of movement.

LIST OF REFERENCE NUMBERS

1

pull-out guide

2

guide rail

3

runner

4

rolling elements

5

Rolling Element

6

rack

7

gear

8th

rotary damper

9

carriage

10

locking element

11

locking element

12

locking element

13

latching receptacle

14

latching receptacle

20

C-shaped edge

21

leg

22

leg

23

Floor / floor section

30

Floor / floor section

31

step

32

web

33

recess

Claims (15)

1. Pull-out guide (1) with a fixable guide rail (2) and a running rail (3) movably mounted on the guide rail (2), and a brake device comprising a rack (6) and a rotation damper (8), which is engaged with the rack (6) and which is actuable by movement of the running rail (3) relative to the guide rail (2), wherein the brake device is arranged between the running rail (3) and the guide rail (2), characterised in that the brake device is completely enclosed by the running rail (3) and the guide rail (2).
2. Pull-out guide according to claim 1, characterised in that the rack (6) of the brake device is fixed to the running rail (3) or the guide rail (3) parallel to the longitudinal direction of the running rail (3).
3. Pull-out guide according to claim 1 or 2, characterised in that a C-shaped edge (20), at which are arranged guide elements between which a web (32) of the running rail (3) or of the guide rail (2) is arranged, is formed at the guide rail (2) or the running rail (3) at opposite longitudinal sides.
4. Pull-out guide according to any one of the preceding claims, characterised in that the brake device comprises at least one rotatably mounted gearwheel (7) which is disposed in engagement with the rack (6) and drives a rotation damper (8) arranged at a slide (9).
5. Pull-out guide according to claim 4, characterised in that the rack (6) of the brake device is so constructed that the running rail (3) is coupled with the rotation damper (8) over the entire length of the travel path.
6. Pull-out guide according to claim 4 or 5, characterised in that the slide has at least one detent receptacle (13, 14) in which a detent element (11, 12) is releasably retained when an end position is reached.
7. Pull-out guide according to claim 6, characterised in that the slide (9) has a detent receptacle (13, 14) at opposite sides.
8. Pull-out guide according to claim 6 or 7, characterised in that detent elements (11, 12) releasably retained at the detent receptacle (13, 14) at the slide (9) until a limit force is overcome are fixed to the guide rail (2) or the running rail (3).
9. Pull-out guide according to claim 8, characterised in that the limit forces are formed to be different in the opposite detent receptacle.
10. Pull-out guide according to any one of the preceding claims, characterised in that the slide (9) is fixed to the running rail (3) or the guide rail (2).
11. Pull-out guide according to any one of the preceding claims, characterised in that the rotation damper (8) generates a different braking force in different directions of movement of the running rail (3).
12. Pull-out guide according to any one of the preceding claims, characterised in that the braking force of the rotation damper (8) is at least reduced in one direction of movement through formation of a freewheel.
13. Item of furniture with a displaceably arranged furniture part such as a drawer-bin, drawer or the like, characterised in that the furniture part is movably mounted by way of at least one pull-out guide (1) according to any one of the preceding claims.
14. Domestic appliance with a displaceably arranged component such as a fume extractor hood or the like, characterised in that the component is movably mounted by way of at least one pull-out guide (1) according to any one of claims 1 to 12.
15. Centre console of a vehicle with a displaceably mounted cover, particularly an armrest, characterised in that the cover is movably mounted by way of at least one pull-out guide (1) according to any one of claims 1 to 12.

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