EP3434144A1 - Slide rail - Google Patents

Abstract

Pull-out guide (1) for a furniture part which can be pulled out and pushed back into it, in particular a drawer, wherein the pull-out guide (1) has at least one carcass rail (2) for attachment to the furniture carcass and at least one drawer rail (4) for attachment to the furniture part and at least a middle rail (3), wherein the middle rail (3) is mounted longitudinally displaceably on the carcass rail (2) and the drawer rail (4) is longitudinally displaceably mounted on the middle rail (3), and wherein the pull - out guide (1) comprises at least one damper (5 ) for damping an insertion movement of the furniture part, wherein the at least one damper (5) is mounted floating on the middle rail (3).

Description

The present invention relates to a pull-out for a pull-out of a furniture body and retractable in this furniture part, in particular a drawer, wherein the pull-out at least one carcass rail for attachment to the furniture body and at least one drawer rail for attachment to the furniture part and at least one middle rail, wherein the middle rail is mounted longitudinally displaceable on the carcass rail and the drawer rail is mounted longitudinally displaceable on the center rail, and wherein the pull-out comprises at least one damper for damping a Einschiebbewegung of the furniture part.

Pull-out guides of the type mentioned are known in the prior art in a variety of embodiments. They serve to furniture parts, such. Drawers, drawers and pull-outs are to be stored in a furniture carcass in such a way that they can be pulled out of the furniture carcass and inserted into them again. When inserting or pulling out the furniture parts, the rails of the pull-out guide are pushed into each other or pulled apart.

An example of a pull-out guide of the type mentioned is in the EP 2 129 260 B1 shown. The pull-out guide shown in this document has a retraction device for retracting the drawer rail in the furniture body. Furthermore, the retraction device has a damper, which dampens the retraction movement of the pull-out guide or of the furniture part in the last section of the insertion path. The damper ensures a gentle braking of the furniture part at the end of the insertion path, whereby force peaks are avoided when reaching the fully inserted position of the pull-out or at least greatly reduced.

When using pull-out guides, which are provided in particular for drawers for receiving heavy objects or heavy loads, the case may arise in a load case in which the furniture part is loaded only slightly or not at all, that upon insertion of the furniture part, the middle rail abuts an end stop of the carcass rail and spring back from this against the insertion direction before the furniture part is fully inserted into the furniture body. The occurring recoil of the center rail may be acoustically perceptible to the user and affect the smoothness of the pull-out guide, since the insertion movement is influenced due to the jerky snap back of the center rail.

The object of the invention is to provide an improved pull-out guide of the type mentioned, in which a good smoothness of the pull-out is guaranteed.

According to the invention, this is achieved by a pull-out guide with the features of claim 1.

In a pull-out according to the invention is thus provided that the at least one damper is mounted floating on the center rail. Under a floating storage is understood in the context of this document, a bearing of the damper on the center rail, in which the damper is mounted as a whole movable relative to the center rail. That is, the entire damper has at least one degree of freedom with respect to the center rail as a whole. For the purposes of the invention, the at least one degree of freedom may be a translational degree of freedom and / or a rotational degree of freedom. In particular, it is conceivable and possible for the damper as a whole to have more than one degree of freedom with respect to the middle rail, for example a degree of translational freedom and a rotational degree of freedom.

Conveniently transmits the at least one damper during a damping process, at least with respect to a direction of insertion of the Pull-out, essentially no or only small forces to the middle rail.

The pull-out guide according to the invention thus makes it possible to transmit longitudinal forces from the drawer rail via the damper mounted floatingly on the middle rail to the carcass rail. As a result, the smoothness of the pull-out, especially at a low load of the furniture part can be improved. The floating mounting of the damper on the center rail allows in particular an automatic averaging the position of the damper with respect to the drawer rail and the cabinet rail.

In a preferred embodiment according to the invention it is provided that the damper comprises a first damper part and a second damper part, wherein the first damper part and the second damper part are movable relative to each other to form a damping effect in a damping operation, and the first damper part and the second damper part jointly movable relative to the central rail, in particular longitudinally displaceable, are mounted on the center rail. In other words, the first and second damper part are conveniently relative to each other and both damper parts together relative to the central rail movable, in particular longitudinally displaceable.

It can be provided that the damper as a whole, i. the first damper part and the second damper part, together in and opposite to the insertion direction relative to the central rail are longitudinally displaceable. Conveniently, the middle rail is formed longitudinally parallel to the insertion direction, wherein the damper is then mounted as a whole longitudinally displaceable parallel to the longitudinal extent of the center rail on the center rail.

The pull-out guide according to the invention could also be referred to as a full extension. A trained as a full extension pull-out allows the complete removal of the furniture part of the furniture body out.

The carcass rail may be a component initially separate from the furniture body, which is then secured in the furniture body with known in the prior art means. But just as well, the carcass rail can already be integrated into a furniture carcass or part of it. This also falls under the concept of attachment of the carcase rail on the furniture body. The same applies to the shop rail. These may also be a rail initially executed separately, which is then attached to the furniture part. But the drawer rail can also already in the furniture part, such as. the drawer, be integrated and thus attached to this.

It is expediently provided that a first stop is arranged on the carcass rail and a second stop on the drawer rail, wherein a first counterstop of the first damper part can be brought into contact with the first stop and a second counterstop of the second damper part can be brought into contact with the second stop. It is preferably provided that, in the damping operation of the pull-out guide, in which the insertion movement of the furniture part is damped, the first counter-stopper contacts the first stop and the second counter-stopper contacts the second stopper.

The term "stop" or "counter stop" is to be understood in the context of this document. For example, the stop or the counter-stop can each have at least one surface, which can be brought into contact with each other. The striking of the stop on the counter-stop then blocks a further relative movement in a direction of movement. In other embodiments, the stop may be an edge or a plurality of flanks of a toothed rack, wherein a component having a toothing can be brought into contact with the toothed rack. At least one tooth flank of the toothing then forms the counter stop in the sense of this document. In a further relative movement of the toothing with respect to the rack having the stop, it can lead to a rolling of the toothing on the rack. In this sense, a rolling of the toothing on the rack, in which different flanks of the rack with different tooth flanks of the toothing in Intervention are referred to as an abutment of the stop on the counter-stop.

It could be provided that the first stop is formed on the carcass rail and / or that the second stop is formed on the drawer rail. In other words, the first stop and the carcass rail could be formed in one piece material. Similarly, the second stop and the drawer rail could be formed materialeinstückig. In other embodiments, it is also possible that the respective stop is otherwise attached to the carcass rail or the drawer rail, for example, materially by means of welding, gluing etc. or by means of connecting elements, such as. Screws, rivets or the like.

It can be provided that the damper is designed as a linear damper and one or the first damper part and one or the second damper part to form the damping effect in an axial direction are movable relative to each other. For example, the linear damper could be a fluid damper, wherein the first damper part forms a piston and the second damper part forms a cylinder of the damper. But the structure of the damper could also be reversed, for example, the second damper part forms the piston and the first damper part of the cylinder designed as a fluid damper damper. In a damper designed as a fluid damper, a fluid flows through a flow opening arranged in the piston and / or between the piston and the cylinder, whereby the relative movement between the piston and the cylinder is damped. Such dampers are known per se in the prior art. Conveniently, the axial direction in which the first damper part and the second damper part are movable relative to one another extends parallel to the insertion direction of the rails.

In a preferred embodiment it can be provided that the pull-out guide has a sliding sleeve arranged on the middle rail for longitudinally displaceable mounting of the damper. For example, designed as a cylinder damper part could be mounted longitudinally displaceable in the sliding sleeve his. The damper is conveniently parallel to a longitudinal extent of the sliding sleeve, relative to the sliding sleeve longitudinally displaceable. The sliding sleeve preferably surrounds the cylinder, at least in regions, in a plane which is orthogonal to the insertion direction. The sliding sleeve is preferably fixed to the middle rail. Conveniently, the sliding sleeve with respect to the middle rail is stationary. As an alternative to a sliding sleeve, the damper could be mounted longitudinally displaceable on the middle rail, for example by means of a linear guide, in particular a linear sliding guide, such as a tongue and groove guide. Other rails for longitudinally displaceable mounting of the damper on the center rail could be used. In a further alternative, for example, a rolling guide could be used for longitudinally displaceable mounting of the damper on the middle rail.

The floating bearing of the damper is conveniently limited. That is, then, the displacement travel of the floating damper relative to the center rail is limited to a predetermined amount. For example, captive securing devices may be arranged on the sliding sleeve and / or on the damper which limit the displacement path of the damper relative to the middle rail, preferably in and against the insertion direction. This can prevent the damper from falling out of the linear sliding guide, for example the sliding sleeve mentioned. The Verliersicherungen could be formed, for example, arranged on the sliding sleeve and / or damper attacks.

In a possible embodiment, the damper could be designed as a rotary damper and one or the first damper part and one or the second damper part to form the damping effect relative to each other rotatable. As dampers designed as dampers are also known in the art.

Preferably, the first damper part or the second damper part, in particular in such rotary dampers, a toothing, which with a arranged on the drawer rail or on the carcass rail in Intervention can be brought. At least one of the tooth flanks of the toothing, preferably a plurality of tooth flanks of the toothing, then forms or form one of the counterstops. At least one edge of the rack, preferably a plurality of flanks of the rack, thereby forming one of the stops. The toothing of the damper part can be brought into engagement with the rack to form the damping effect.

It can be provided that the pull-out guide has a pull-in device, preferably arranged on the carcass rail, for pulling the drawer rail into the furniture carcass. Various embodiments of retractors are known in the art. For example, the retraction device could comprise a pull-in spring for performing a pull-in movement of a tilting slide of the pull-in device. At the drawer rail or at the middle rail a driver is conveniently arranged, which cooperates with the tilting slide for carrying out the drawing-in movement. Preferably, the retractor is attached to the carcass rail and / or carried by the carcass rail. In other embodiments, the retraction device could also be arranged on another rail, for example the drawer rail of the pull-out guide, and cooperate with a catch arranged on the carcass rail for carrying out the pull-in movement. In principle, the driver could then also be arranged on the middle rail, for example if the pull-out guide has a device for positive coupling of the movement of the middle rail and the drawer rail.

In a possible embodiment of the pull-out guide can be provided that it has a means for positive coupling of the movement of the center rail and the drawer rail during insertion and withdrawal of the piece of furniture. Such trained pull-out could, as known in the art, also be referred to as Differentialausziehführung. In a differential pull-out guide, the movement of the center rail and the drawer rail is controlled by a synchronization device known per se synchronized, ie positively coupled. For example, at least one rotatably mounted load-transmitting differential roller could be arranged on the middle rail, whereby a synchronous or differential running of the rails is achieved. In a differential extension guide, the middle rail only covers half the path of the drawer rail with respect to the cabinet rail. Various modified embodiments of such differential extension guides are also already known. For example, it is also possible to provide a positive forced coupling. For this purpose, for example, a gear could be provided on the center rail, which engages in arranged on the carcass rail and the drawer rail racks.

In other embodiments, means for positively coupling the movement of the center rail and the drawer rail could be eliminated. Such an embodiment of a pull-out guide could, as known per se in the prior art, also be referred to as a telescopic extension guide.

• Fig. 1 bis 12 Darstellungen zu einem ersten erfindungsgemäßen Ausführungsbeispiel in Form einer Differentialausziehführung;
• Fig. 13 bis 24D Darstellungen zu einem zweiten erfindungsgemäßen Ausführungsbeispiel in Form einer Teleskopausziehführung, und
• Fig. 25A bis 25E Darstellungen zu einem dritten erfindungsgemäßen Ausführungsbeispiel.

Further features and details of preferred embodiments of the invention will be explained by way of example with reference to the description of the figures. Show it:

• Fig. 1 to 12 Representations of a first embodiment of the invention in the form of a differential extension guide;
• Figs. 13 to 24D Representations of a second embodiment of the invention in the form of a telescopic extension, and
• Figs. 25A to 25E Representations of a third embodiment of the invention.

In Fig.1 the first embodiment of a pull-out according to the invention is shown in a state in which the drawer rail 4 of the pull-out 1 is completely inserted together with the middle rail 3 in the insertion direction 22 in the body rail 2. Fig. 2 shows the detail A of the Fig. 1 , In Fig. 3 are the drawer rail 4 and the middle rail 3 completely pulled out against the insertion direction 22 of the body rail 2. Fig. 4 shows that Detail B the Fig. 3 , The Fig. 5 to 8 show isometric views of the pull-out guide 1 from a different perspective, the carcass rail is shown partially sectioned. The 6 and 8 show the details C and D of the FIGS. 5 and 7 , In the Figs. 9A to 9F Different relative positions of the carcass rail 2, the middle rail 3 and the drawer rail 4 are shown. The 10 and 11 show a view analogous to Fig. 1 , wherein the carcass rail 2 and the middle rail 3 are shown partially sectioned. Fig. 11 shows the detail E of the Fig. 10 , In Fig. 12 is a view of the pull-out guide is shown with a viewing direction in the insertion direction 22.

For completeness, it should be noted that in the figures neither the furniture body nor by means of the pull-1 in this insertable and removable from this furniture part are shown. The arrangement and attachment of the pull-out guide 1 with its rails, i. the carcass rail 2, the middle rail 3 and the drawer rail 4, between furniture body and furniture part, can be carried out as known per se. Usually located on opposite sides of the furniture part in each case a pull-out 1. In the drawings drawn here, only one of these two pull-out guides 1 is shown, which together store a furniture part in accordance with the furniture body.

In the first embodiment according to the invention, the pull-out guide 1 is designed as a differential pull-out guide, in particular as a differential roller pull-out guide. The carcass rail 2, the middle rail 3 and the drawer rail 4 are guided by means of rollers 13 slidably into each other. The drawer rail 4 is longitudinally displaceable on or in the middle rail 3 and the middle rail 3 is mounted longitudinally displaceable in the carcass rail 2 together with the drawer rail 4. The insertion of the furniture part takes place in the insertion direction 22, the extraction of the furniture part of the furniture body in the insertion direction 22 opposite direction.

In the Fig. 7 partially visible and partially hidden synchronization roller 23 together with the roller 13 arranged above it for the synchronization, ie the positive coupling, the relative movement between the drawer rail 4 and the center rail 3, as is known per se and need not be explained further. For the sake of completeness, it is pointed out that pull-out guides 1 according to the invention do not necessarily have to be roll-based. Instead of the rollers 13, for example, ball bearings or plain bearings can be used, just to name a few examples. The synchronization of drawer rail 4 and center rail 3 may be designed differently, for example, with a gear arranged on the center rail, which meshes with arranged on the drawer rail and on the carcass rail racks.

The extension guide 1 according to the first embodiment has a retraction device 10 for retracting the drawer rail 4 in the furniture body. The retraction device 10 is arranged on the carcass rail 2. In the prior art, various variants of retracting devices 10 are known, which in principle could also be used in a pull-out guide 1 according to the invention. Finally, the retractor 10 ensures that the furniture part is completely retracted into the furniture body.

The retraction device 10 shown in the figures has a tilting slide 15 which cooperates with a driver 18 arranged on the middle rail 3. The driver 18 is not shown separately. The tilting slide 15 is spring-loaded in the exemplary embodiment, wherein the spring 14 of the retraction device 10 causes the retraction of the middle rail 3 and the drawer rail 4 forcibly coupled to the middle rail 3. Such retractors 10 are known per se. At this point, however, it is noted that in a possible embodiment, a retraction device 10 could be dispensed with.

The pull-out guide 1 further comprises a damper 5 for damping the insertion movement of the furniture part. The damper 5 is for this purpose according to the invention floatingly mounted on the center rail 3. In the embodiment is provided that the entire damper 5 is movable relative to the central rail, in particular longitudinally displaceable, is. In particular, the damper 5 as a whole in and against the insertion direction 22 relative to the central rail 3 is longitudinally displaceable. The damper 5 thus has as a whole with respect to the center rail 3 a translational degree of freedom in and against the insertion direction 22.

In the exemplary embodiment, the damper 5 is designed as a linear damper, in particular as a fluid damper. The damper 5 has a first damper part 6, which comprises a, not separately shown, the piston of the fluid damper. The first damper part 6 further comprises a piston rod adjoining the piston, as shown in the Fig. 7 is apparent. Furthermore, the damper 5 designed as a fluid damper comprises a second damper part 7, which is designed as a cylinder. The first damper part 6 and the second damper part 7 are movable relative to each other to form a damping effect in a damping operation in an axial direction. In the exemplary embodiment, the axial direction in which the first damper part 6 and the second damper part 7 are movable relative to one another is aligned parallel to the insertion direction 22.

As already described at the outset, the principle of a fluid damper in the prior art is known per se. For example, the fluid damper may be an oil or silicone damper. In principle, it would also be conceivable and possible for the damper 5 to be designed as a gas pressure damper. In the non-loaded state, the damper 5 in the exemplary embodiment on an extended rest position, wherein the moving apart of the damper parts 6, 7 could be effected for example by an integrated into the fluid damper return spring.

In the exemplary embodiment, it is provided that the first damper part 6 and the second damper part 7 of the damper 5 are jointly longitudinally displaceable relative to the center rail 3. For this purpose, the pull-out guide 1 has a sliding sleeve 16 attached to the middle rail 3 for the floating mounting of the damper 5. In the exemplary embodiment, the second damper part 7, ie the cylinder of the Fluid damper, mounted longitudinally displaceable in the sliding sleeve 16. The sliding sleeve 16 thereby surrounds the second damper part 7, ie the cylinder, relative to a direction orthogonal to the insertion direction 22 preferably completely. Other embodiments of the floating mounting of the damper on the middle rail are also conceivable, for example, the second damper part could have a slider, which is displaceable in a groove introduced on the center rail. For example, a slider arranged on the damper part could have a dovetail-shaped cross-section which engages in a corresponding groove cross-section of a groove introduced on the center rail. Other embodiments of Lineargleitführungen for longitudinally displaceable mounting of the damper 5 to the center rail 3 are basically possible, as already explained.

The sliding sleeve 16 of the embodiment has a mounting plate 17 for fixing the sliding sleeve 16 to the center rail 3. The sliding sleeve 16 is fixed relative to the center rail 3. For fixing the mounting plate 17 to the center rail 3, the sliding sleeve 16 protruding from the mounting plate 17 mounting surveys 19, see. Fig. 11 , In Fig. 11 the middle rail 3 is shown omitted in the region of the mounting plate 17, so that the mounting projections 19 are better visible. Fig. 3 shows a view with the middle rail 3, wherein the mounting projections 19 are received in corresponding unspecified receiving holes of the center rail 3. The sliding sleeve 16 could be fastened to the middle rail 3, for example by means of screws. A local melting of the mounting elevations 19 for positive Anformung to the center rail 3 is basically conceivable and possible. Such joining techniques are well known.

On the carcass rail 2, a first stop 8 and the loading rail 4, a second stop 9 is arranged. In the first embodiment, it is provided that the first stop 8 is integrally formed on the carcass rail 2, cf. Fig. 11 , The stopper 8 is here made by punching and bending from the base material, such as a steel sheet, the carcass rail 2. The second Stop 9 is in the first embodiment of the drawer rail 4, for example by means of fasteners, such as screws or rivets attached. In another embodiment, but it would also be conceivable and possible to perform the second stop 9 materialeinstückig with the drawer rail 4 or, for example, firmly bonded by gluing, welding or soldering to the drawer rail 4.

The first damper part 6 has a first counter-stop 11, which can be brought into contact with the first stop 8. At the second damper part 7, a second counter-stop 12 is arranged, which is engageable with the second stopper 9 in contact. The first counter-stop 11 is fastened in the exemplary embodiment to the piston rod of the first damper part 6. The first counter-stop 11 could for example be pressed onto the piston rod. Other embodiments are conceivable, for example, an adhesive connection, a snap connection or the like. The second counter-stop 12 is formed in the embodiment of an outer surface of the damper part 7, as for example in Fig. 8 is apparent.

During the damping process of the pull-out guide 1, in which the insertion movement of the furniture part is damped, the first counter-stop 11 contacts the first stop 8 and the second counter-stop 12 touches the second stop 9 Fig. 9A shown.

Fig. 9A shows the pull-out guide 1 in the fully inserted position. The damper 5 is, apart from an optionally remaining residual stroke of the damper 5, completely compressed, that is, the first damper part 6 and the second damper part 7 are, at least substantially, pushed completely into one another.

In Fig. 9B an extended state of the damper 5 is shown, that is, the first damper part 6 and the second damper part 7 are shown in the fully extended position of the damper 5. The first counter-attack 11 touches in this illustrated operating state of the pull-out guide 1, the stop 8 and the second counter-stop 12 the second stop. 9

In a push-in operation in the insertion direction 22, starting from Fig. 9B in the direction Fig. 9A Deploys the damper 5 a damping effect, in which, upon insertion of the furniture part in the insertion direction 22 into the furniture body, the insertion movement of the furniture part is damped.

Fig. 9C shows an operating state in which the drawer rail 4 or the furniture part is further pulled out of the furniture body than in Fig. 9B , The stops 8, 9 are spaced from the counter-attacks 11, 12. The damper 5 is then due to the floating bearing as a whole relative to the central rail 3 in and against the insertion direction 22 longitudinally displaceable.

In the Figs. 9D to 9F the floating bearing of the damper 5 is shown by way of example. In all these figures, the relative position of the carcass rail 2 to the center rail 3 and the middle rail 3 to the drawer rail 4 is identical. In Fig. 9D the damper 5 is shown in an averaged position, ie the distance of the first counter-stop 11 from the first stop 8 and the distance of the second counter-stop 12 from the second stop 9 are identical. In Fig. 9E the damper 5 is shifted in the insertion direction 22 relative to the center rail 3, that is, the distance between the first stop 8 and the first counter-stop 11 is smaller than the distance between the second stop 9 and the second counter-stop 12th Fig. 9F shows the opposite situation in which the damper 5 is displaced corresponding to the insertion direction 22 and the distance between the first stop 8 and the first counter-stop 11 is greater than the distance between the second stop 9 and the second counter-stop 12th

The floating mounting of the damper 5 on the center rail 3 causes a direct power flow from the drawer rail 4 via the damper 5 to the carcass rail 2 is transferable during insertion. This can cause a snap back Middle rail 3 are avoided during rapid insertion due to the onset of damping effect of the damper 5. In other words, the damper 5 is automatically mediated between the first stop 8 and the second stop 9. As a result, a good smoothness of the pull-out guide 1 can be achieved.

In order to prevent the damper 5 from falling out of the sliding sleeve 16, parallel to and against the insertion direction 22, captive securing devices could be provided which limit the displacement of the floating damper 5 relative to the sliding sleeve 16 in and against the insertion direction 22. For example, 5 stops could be arranged on the sliding sleeve 16 and / or the damper, which form the Verliersicherungen.

In the Fig. 13 to 22nd . 23A-D and 24A-D a second embodiment of a pull-out guide 1 according to the invention is shown. The structural configuration of the pull-out guide 1 has many similarities with those of the first embodiment, so that in the explanation of the second embodiment is mainly referred to the differences from the first embodiment. Apart from the differences mentioned below, the explanations on the first embodiment also apply in the second embodiment.

In the second embodiment, the pull-out guide 1 is designed as a telescopic extension guide. On the carcass rail 2, on the middle rail 3 and on the drawer rail 4 rollers 13 are rotatably mounted. When removing the furniture part, the drawer rail 4 and the center rail 3 are pulled out of the carcass rail 2 successively. In contrast to the differential design with this pull-out 1 no forced operation or synchronization of the rails is provided.

Also designed as a telescopic extension guide pull-out 1 of the second Embodiment has a arranged on the carcass rail 2 retraction device 10 for retracting the drawer rail 4 in the furniture body, see. Fig. 13 to 16 , In Fig. 13 the telescopic retraction guide is shown in the fully inserted state. Fig. 15 shows the detail F of Fig. 13 , The arranged on the drawer rail 4 driver 18 cooperates with the tilt slide 15.

In the Fig. 16 is the detail G according to Fig. 14 shown. In this situation, the pull-out guide 1 is completely pulled apart. The tilting slide 15 is in a locking position in which the spring, not shown, of the retraction device 10 is biased. Upon insertion of the drawer rail 4 in the furniture body of the driver 18 hits the tilt slide 15. In a further insertion of the furniture part moves or twisted the driver 18 the tilt slide 15 out of the locked position, in which case the Einziehwirkung the spring is deployed, the tilting the 15th moves with the driver 18 and the drawer rail 4 in the insertion direction 22. In the FIGS. 15 and 16 is also the unspecified guide groove of the retraction device 10 can be seen, in which the tilting slide 15 is positively driven.

In the second exemplary embodiment, the carcass rail 2 has a mounting bracket 24 for fastening the pull-in device 10 to the carcass rail 2. The first stop 8 is integrally formed on the mounting bracket 24 of the carcass rail 2, cf. Fig. 16 , In the FIGS. 17 and 18 are to the FIGS. 13 and 14 analogous representations shown, with a different perspective was chosen. Also from these figures, the just described construction of the mounting plate 24 and the arrangement of the first stop 8 on the carcass rail 2 shows.

Furthermore, the sliding sleeve 16 of the second embodiment is fastened to the middle rail 3 by means of a mounting bracket 25. The design of the sliding sleeve 16 is identical to that of the first embodiment, wherein, for example, the mounting projections 19 from the FIGS. 19 and 20 which the details H and I the FIGS. 17 and 18 show, emerge. The attachment of the sliding sleeve 16 to the Mounting bracket 25, which in turn is attached to the center rail 3, may be carried out analogously to the first embodiment.

On the drawer rail 4, a second stop 9 is arranged in the second embodiment. This can in turn be formed on the drawer rail 4. However, it is also conceivable and possible that the stop 9 is fastened in a different manner to the drawer rail 4, as has already been explained.

The damper 5 of the second embodiment is identical to the first embodiment, ie, the first damper part 6 is formed as a piston of a fluid damper and the second damper part 7 as a cylinder of a fluid damper. Furthermore, the damper 5 has a, for the first embodiment, identical, first counter-stop 11, which is arranged on the piston. The second counter-stop 12 is formed by an outer surface of the second damper part 7. During the damping operation of the pull-out guide 1, in which the insertion movement of the furniture part is damped, the first counter-stop 11 contacts the first stop 8 and the second counter-stop 12 contacts the second stop 9, as shown in FIG Fig. 22 is clearly visible.

In the Figs. 23A to 23D is a pull-out of the pull-out 1 is shown. In Fig. 23A the fully inserted state of the pull-out guide 1 is shown, wherein the first stop 8 and the first counter-stop 11, and the second stop 9 and the second counter-stop 12 touch. Fig. 23B shows a state in which the drawer rail 4 is pulled a little way out of the center rail 3. The driver 18 still interacts with the tilting slide 15 in this state shown. The stops 8, 9 and the counter-stops 11, 12 are still touching, the damper 5 has automatically taken a position between stops 8, 9. In Fig. 23C the driver 18 has already been pushed out of the tilt slide 15. The tilting slide 15 is secured in the locked position. The first stop 8 touches the second counter-stop 11, while the second stop 9 and the second counter-stop 12 are already spaced from each other. In Fig. 23D is the shop rail 4 even further pulled out. The middle rail 3 and the carcass rail 2 are still in the same starting position as in Fig. 23A is shown. The stop 8 and the counter-stop 11 are still at each other. Only with a further extension of the drawer rail 4 is carried along a co-movement of the center rail 3, in which case the first stop 8 and the first counter-stop 11 are lifted from each other, as for example Fig. 24A is shown.

In the Figs. 24A to 24D is the insertion of the pull-out guide 1, starting from the in Fig. 24A shown fully pulled out position in which the stops 8, 9 are spaced from the counter-attacks 11, 12. In the in Fig. 24B shown state, the drawer rail 4 is already fully inserted into the center rail 3, wherein the stop 9 abuts the counter-stop 12. The first stop 8 is spaced from the second counter-stop 11.

In Fig. 24C the situation is shown in which the driver 18, the tilting slide 15 just touches, wherein in a further insertion of the furniture part retraction by means of the retraction device 10 is triggered. The first stop 8 touches the first counter-stop 11 and the second stop 9 touches the second counter-stop 12. In this situation, the damper 5 deploys a damping effect, ie the insertion movement of the furniture part is damped by the damper 5. Fig. 24D again shows the fully inserted or retracted state of the pull-out guide 1 and corresponds to the figure Fig. 23A ,

In the Figs. 25A to 25E a third embodiment of a pull-out guide 1 according to the invention is shown. The structural design of the pull-out guide 1 is shown only schematically, ie the rollers and the pull-in device have been omitted. Otherwise, the structure of the pull-out guide 1 corresponds to the structure of the second embodiment. In the explanation of the third embodiment, reference is mainly made to the differences from the second embodiment. Apart from the differences mentioned below, the explanations on the second embodiment also apply in the third embodiment.

In the third embodiment, it is provided that the damper 5 is designed as a rotary damper and a first damper part 6 and a second damper part 7 for forming the damping effect are rotatable relative to each other. As already explained, rotational dampers are known per se in the prior art.

Also designed as a rotary damper damper 5 is floatingly mounted on the center rail 3. For this purpose, the first damper part 6, which forms the housing of the rotary damper, is mounted floating in a guide groove 21 of the middle rail 3. The second damper part 7 of the damper 5 has a toothing, cf. eg Fig. 25A , and could also be called a rotor. The housing formed as a first damper part 6 is longitudinally displaceable in the guide groove 21 relative to the center rail 3. The displacement of the damper 5 relative to the center rail 3 is limited by unspecified boundary surfaces which limit the guide groove in and against the insertion direction 22. The said boundary surfaces form stops or Verliersicherungen to prevent falling out of the damper 5.

The damper 5 is mounted on the center rail 3 so that falling out of the damper is prevented. For example, the engaging in the guide groove 21 first damper part 6 could have an undercut to prevent falling out of the damper 5. This is not shown separately in the schematic diagrams.

On the drawer rail 4, a rack 20 is arranged, which meshes with the toothing of the second damper part 7 during the damping process of the pull-out guide 1, in which the insertion movement of the furniture part is damped. The gear flanks of the toothing of the second damper part 7 form a second counter-stop 12 in the context of the invention. The first stop 9 is formed by tooth flanks of the toothing 20 of the second damper part 7.

Furthermore, the housing formed as a first damper part 6 has a first Counter-attack 11 on. On the carcass rail 2, a stop 8 is arranged analogously to the first embodiment, which may be embodied, for example materialeinstückig with the carcass rail 2.

Fig. 25A shows an extended position of the pull-out 1. The first stop 8 and the first counter-stop 11, and the second stop 9 and the second counter-stop 12 are spaced from each other.

When inserting the drawer rail 4, as in Fig. 25B is shown, there is a striking of the second stop 9 on the second counter-stop 12. The first counter-stop 11 is spaced from the first stop 8. In Fig. 25C is the middle rail 3 identical to in Fig. 25B shown position shown. From the comparison of these two mentioned figures it can be seen that the damper 5 is longitudinally displaceable relative to the center rail 3 and thus floating on this. In Fig. 25D a position of the pull-out guide 1 is shown, in which the first stop 8 and the first counter-stop 11 are posted and the second stop 9 now also touches the second counter-stop 12. In a further insertion of the drawer rail 4, therefore, a damping effect is achieved with which the insertion movement of the furniture part is damped. In Fig. 25E the fully inserted position of the pull-out guide 1 is shown, wherein the stops 8, 9 each contact the counter-stops 11, 12.

The in the Figs. 25A to 25E Pull-out guide 1 shown is formed in the form of a telescopic extension. A designed as a rotary damper damper 5 could also be used in a differential extension.

In a further embodiment variant of the third exemplary embodiment, for example, the first stop 8 on the drawer rail 4 and the rack 20, which has the stop 9, could be arranged on the cabinet rail 2.

Legend to the reference numbers:

1

pull-out

2

cabinet member

3

middle rail

4

drawer rail

5

damper

6

first damper part

7

second damper part

8th

first stop

9

second stop

10

retractor

11

first counter-attack

12

second counter-attack

13

role

14

feather

15

tilt slide

16

sliding sleeve

17

mounting plate

18

takeaway

19

installation survey

20

rack

21

guide

22

insertion

23

synchronization role

24

mounting bracket

25

mounting bracket

Claims (10)

Pull-out guide (1) for a furniture part which can be pulled out and pushed back into it, in particular a drawer, wherein the pull-out guide (1) has at least one carcass rail (2) for attachment to the furniture carcass and at least one drawer rail (4) for attachment to the furniture part and at least a middle rail (3), wherein the middle rail (3) is mounted longitudinally displaceably on the carcass rail (2) and the drawer rail (4) is longitudinally displaceably mounted on the middle rail (3), and wherein the pull - out guide (1) comprises at least one damper (5 ) for damping an insertion movement of the furniture part, characterized in that the at least one damper (5) is mounted floating on the middle rail (3). Pull-out guide (1) according to claim 1, characterized in that the damper (5) comprises a first damper part (6) and a second damper part (7), wherein the first damper part (6) and the second damper part (7) for forming a damping effect can be moved relative to one another in a damping operation, and the first damper part (6) and the second damper part (7) are mounted together, in particular longitudinally displaceable, on the middle rail (3) so as to be movable relative to the center rail (3). Pull-out guide (1) according to claim 2, characterized in that on the carcass rail (2) a first stop (8) and on the drawer rail (4) a second stop (9) are arranged, wherein a first counter-stop (11) of the first damper part (6) with the first stop (8) and a second counter-stop (12) of the second damper part (7) with the second stop (9) are brought into contact, wherein, in the damping operation of the pull-out guide (1), in which the Einschiebbewegung the furniture part is muffled, the first Counter stop (11) touches the first stop (8) and the second counter-stop (12) touches the second stop (9). Pull-out guide (1) according to claim 3, characterized in that the first stop (8) is integrally formed on the carcass rail (2) and / or that the second stop (9) is integrally formed on the drawer rail (4). Pull-out guide (1) according to one of claims 1 to 4, characterized in that the damper (5) is designed as a linear damper and one or the first damper part (6) and one or the second damper part (7) for forming the damping effect in an axial direction are movable relative to each other. Pull-out guide (1) according to one of Claims 1 to 5, characterized in that the pull-out guide (1) has a sliding sleeve (16) arranged on the middle rail (3) for the longitudinally displaceable mounting of the damper (5). Pull-out guide (1) according to one of claims 1 to 4, characterized in that the damper (5) is designed as a rotary damper and one or the first damper part (6) and one or the second damper part (7) for forming the damping effect relative are rotatable to each other. Pull-out guide (1) according to claim 7, characterized in that the first damper part (6) or the second damper part (7) has a toothing, and on the drawer rail (4) or on the carcass rail (2) a rack (20) is arranged wherein the toothing with the rack (20) is engageable. Pull-out guide (1) according to one of claims 1 to 8, characterized in that this one, preferably on the carcass rail (2) arranged, retracting device (10) for retracting the drawer rail (4) in having the furniture body. Pull-out guide (1) according to one of claims 1 to 9, characterized in that it has a device for positive coupling of the movement of the center rail (3) and the drawer rail (4) during insertion and removal of the piece of furniture.

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