EP3281553B1 - Slide mechanism - Google Patents

Description

The present invention relates to an at least two-rail or at least three-rail pull-out guide for guiding a pull-out slide that can be pulled out of a body, comprising an outer rail, an inner rail mounted on rolling elements and optionally at least one central rail mounted on rolling elements.

Such pull-out guides are, for example, from DE 10 2008 011 481 A1 , the US 2011/0101839 A1 or the DE 20 2010 008 079 U1 known.

The present invention is based on the object of creating a pull-out guide which enables a high load-bearing capacity and / or a large pull-out path as well as reliable locking in a pushed-in state.

This object is achieved according to the invention by a pull-out guide according to claim 1.

The pull-out guide serves to guide a pull-out that can be pulled out of a body in one pull-out direction.

The pull-out guide comprises an outer rail and an inner rail mounted on rolling elements.

The inner rail is mounted on the outer rail, in particular displaceably, for example by means of the rolling elements.

The rolling bodies are in particular designed spherically.

It can be advantageous if the pull-out guide comprises at least one central rail.

The middle rail is preferably mounted on rolling elements on the outer rail. The inner rail is then preferably mounted on rolling elements on the at least one center rail.

The pull-out guide comprises a self-retracting device for pulling in the pull-out guide from an at least partially extended state.

The pull-out guide can in particular be brought into a completely pushed-in state by means of the self-closing device.

The pull-out guide further comprises a control element arranged on the inner rail and a driver arranged on an energy store of the self-closing device.

The control element and the driver can be releasably coupled to one another, in particular in order to releasably couple the inner rail and the energy store to one another.

According to the invention it is provided that the control element is pivotably fixed on the inner rail. Compared to the pull-out guides known in the prior art, in which the control element is fixed immovably on the inner rail or is formed by the inner rail, a pivotable fixing of the control element on the inner rail results in a separation of the coupling on the one hand and the particularly load-related movement or Deformation of the inner rail on the other hand.

In particular, a reliable actuation of the self-retracting device can also be ensured by a pivotable fixing of the control element on the inner rail when the inner rail is, for example, due to too high a load in the extension is undesirably deformed or deflected, in particular deflected vertically.

The pivotable fixing of the control element on the inner rail can preferably make it possible to use a single design of the pull-out guide for a pair of pull-out guides for receiving and guiding a pull-out on a body.

A pair of pull-out guides then preferably comprises two identically designed pull-out guides.

Since the two pull-out guides of a pair of pull-out guides are preferably each mounted or can be mounted with the inner rail pointing in the direction of the pull-out, when using two identical pull-out guides for the pair of pull-outs, one of the pull-out guides can be mounted or mounted upside down and / or upside down. This can result in asymmetrical deflections and / or deformations of the pair of drawer guides and / or uneven and / or asynchronous actuation of the self-closing devices and / or damping devices, especially when the pull-out guides have to absorb a high load. By means of the pivotable control element, a reliable and at least approximately synchronous actuation of the self-retracting device and / or damping device can preferably also be ensured in this case.

It can be advantageous if the control element can be pivoted about a pivot axis which is at least approximately perpendicular to the pull-out direction. The pivot axis is preferably aligned at least approximately perpendicular to a rail back of the inner rail.

The control element is pivotably fixed in particular on an inner side of a rail back of the inner rail.

In particular, the control element is partially or completely arranged between two legs of the inner rail, on which rolling element raceways are formed for receiving and guiding rolling elements.

It can be provided that the control element comprises one or more guide projections which in particular protrude beyond one or two legs of the inner rail.

In the assembled state of the pull-out guide, the one or more guide projections preferably protrude in the vertical direction, in particular upwards and / or downwards, beyond one or two legs of the inner rail.

It can be favorable if the control element comprises an inlet section, a control channel and an end section for guiding and receiving a driver pin of the driver.

The inlet section, the control channel and / or the end section are preferably arranged between two guide projections of the control element in a direction running perpendicular to the extension direction and parallel to a rail back of the outer rail.

It can be provided that the one or more guide projections each have one or more deflecting surfaces running obliquely to the pull-out direction.

The one or more deflection surfaces preferably bring about a pivoting movement of the control element upon contact with a further component of the pull-out guide.

As a result of this pivoting movement of the control element, the control element can in particular be brought into a desired orientation relative to a driver, a guide plate, a guide channel, a guide channel and / or a guide surface.

As an alternative or in addition to this, one or more deflection surfaces can also be formed and / or arranged on components of the pull-out guide other than the one or more guide projections of the control element.

The one or more guide projections then strike these deflecting surfaces in particular in order to bring about a pivoting movement of the control element and in particular to bring it into a target position relative to a driver, a guide plate, a guide channel, a guide channel and / or a guide surface.

The pull-out guide preferably comprises one or more guide surfaces on which one or more guide projections of the control element can be placed in order to position the control element relative to the driver.

By means of the one or more guide surfaces, in particular a translational movement of the control element running parallel to the pull-out direction and / or push-in direction can be achieved. In particular, a reliable coupling between the control element and the driver can be achieved by means of the one or more guide surfaces independently of a deflection of an end of the inner rail facing the self-retracting device, for example, independently of a height position of this end of the inner rail.

The control element preferably assumes different pivoting orientations relative to the inner rail, in particular depending on a height position of an end of the inner rail facing the self-retracting device relative to the driver and / or a guide plate and / or a guide channel and / or a guide channel and / or one or more guide surfaces.

It can be provided that the control element comprises two guide projections, which protrude in opposite directions beyond two legs of the inner rail, with opposite outer ends of the guide projections being at a distance from one another in a direction perpendicular to the extension direction and parallel to a rail back of the outer rail, which at least approximately corresponds to a distance between two guide surfaces, in particular two mutually facing guide surfaces.

By means of the guide projections, the control element can thereby, in particular, be guided between the two guide surfaces with a precise fit in order to ultimately achieve reliable positioning of the control element.

It can be provided that one or more guide surfaces are formed by one or more boundary walls of the energy store.

As an alternative or in addition to this, it can be provided that one or more guide surfaces are formed by one or more boundary walls of a damping device of the pull-out guide.

In addition, as an alternative or in addition to this, it can be provided that one or more guide surfaces are formed by a guide plate for guiding the driver.

A boundary wall of the energy store is in particular a wall of a spring receptacle for receiving an energy store designed as a spring.

A boundary wall of a damping device is in particular a wall of a damper receptacle for receiving a damping element of the damping device.

The guide plate for guiding the driver extends in particular essentially flat on an inside of the outer rail. In particular, however, provision can also be made for the formation of one or more guide surfaces be that the guide plate comprises one or more projections, webs, etc. serving as guide surfaces.

One end of the inner rail facing the self-closing device is preferably free-running.

"Freely running" is to be understood in particular as a guide for the inner rail in such a way that it is not supported, in particular not indirectly and / or not directly, on other components of the pull-out guide in the area of the self-closing device.

An end of the inner rail facing the self-closing device is therefore in particular not supported and / or guided on other components of the pull-out guide.

It can be favorable if an end of the inner rail facing the self-closing device, in a completely inserted and unloaded state of the pull-out guide, has a vertical and / or horizontal distance from one or more guide surfaces, in particular from all guide surfaces, which is at least approximately 2 mm, for example at least about 3 mm.

These values are preferably also obtained with a normally loaded state of the drawer slide, that is to say in a state of normal use, in which a drawer guided by means of the drawer slide experiences a load lying within the structural specifications.

In one embodiment of the invention it can be provided that the pull-out guide comprises a guide channel, by means of which the control element can be held and / or guided at least during a retraction movement of the inner rail by means of the self-retracting device at an at least approximately constant distance from the rolling element raceways of the outer rail.

The guide channel is formed in particular by two guide surfaces that run parallel to one another.

In particular, the guide channel runs essentially parallel to the pull-out direction and / or pull-in direction.

Furthermore, it can be provided that the guide channel has guide surfaces oriented at least approximately perpendicular to the back of the rail of the inner rail and / or perpendicular to the back of the rail of the outer rail, or is formed therefrom.

The guide surfaces are in particular flat surfaces, that is to say surfaces each running in one plane.

It can be provided that the pull-out guide comprises a stop element for limiting a pivoting movement of the control element relative to the inner rail.

The stop element is in particular formed and / or arranged on the control element itself.

By means of the stop element, in particular a pivoting movement of the control element relative to the inner rail is limited or can be limited in such a way that the one or more guide projections always come into contact or engagement with at least one guide surface when the pull-out guide is pushed in. In particular, an undesired excessive deflection of the control element, which could lead to a blocking of the drawer guide during the insertion movement, can thereby be effectively prevented.

The stop element is in particular a stop projection of the control element.

The stop projection protrudes in particular into a recess in a rail back of the inner rail.

A maximum range of motion of the control element relative to the inner rail can be set by suitable dimensioning of the stop projection and / or the recess.

In one embodiment of the invention it can be provided that one leg of the inner rail is shortened at an end of the inner rail facing the self-retracting device.

A shortened design is to be understood here in particular as the fact that this leg does not extend completely to the end of the inner rail facing the self-retracting device, but rather ends beforehand.

The further leg of the inner rail preferably extends up to the end of the inner rail facing the self-retracting device or at least approximately up to this end of the inner rail.

As a result of the shortened design of a leg of the inner rail, in particular optimized accessibility of a latching element for coupling the control element to a damping device of the pull-out guide can be achieved.

It can preferably be provided that the outer rail is arranged on the body side and the inner rail is arranged on the extension side. However, it is also possible to arrange the outer rail on the extension side and the inner rail on the body side.

It can be favorable if, in the assembled state of the pull-out guide, a plane running essentially vertically and in the pull-out direction intersects all of the rolling element raceways of the pull-out guide and the at least one damping device. In particular if all rolling element tracks of the pull-out guide and the at least one damping device are installed In the state of the pull-out guide are arranged essentially one above the other, when the pull-out guide is loaded in the direction of gravity, slight torsional forces act on the pull-out guide so that the pull-out guide is largely torsion-free during operation.

It can be advantageous if the outer rail, the at least one central rail and / or the inner rail have an essentially C-shaped cross section - taken in a direction perpendicular to the extension direction.

It can be particularly advantageous if the outer rail, the at least one central rail and / or the inner rail have an essentially C-shaped cross section taken in a direction perpendicular to the extension direction. A nested and therefore particularly compact arrangement of the rails relative to one another is thus possible.

It can be favorable if at least one center rail is surrounded by the outer rail at least in sections on at least three sides when the pull-out slide is completely pushed in. The at least one middle rail can thus be guided on the outer rail of the pull-out guide in a particularly stable and space-saving manner.

According to an advantageous embodiment of the invention, when the pull-out guide is completely pushed in, the inner rail is surrounded on at least three sides by the at least one central rail. As a result, the inner rail can be guided on the at least one central rail in a particularly stable and space-saving manner.

According to a further advantageous embodiment of the invention it is provided that the pull-out guide is designed as a fully pull-out guide. In this way, the pull-out guide has a particularly large pull-out path. The pull-out can in particular be pulled out completely from the body.

In one embodiment of the invention it can be provided that the at least one damping device can be actuated by means of the inner rail and / or a control element arranged on the inner rail. Optionally, an actuating element can be provided on which the inner rail and / or the control element arranged on the inner rail engages directly and / or which is used to actuate the at least one damping device.

The movement damping by means of the damping device can be implemented, for example, by a movement damping fluid arranged in a housing of the damping device, the movement damping fluid comprising, for example, a gas or a gas mixture, in particular air.

As an alternative or in addition to this, it can be provided that the movement damping fluid comprises a liquid, in particular an oil, silicone or the like.

In one embodiment of the invention it can be provided that the damping device comprises two interior spaces which are separated from one another by means of a piston and in which the movement damping fluid is arranged. The damping effect of the damping device is then achieved in that the piston is displaced relative to the housing of the damping device, for example by means of a piston rod. As a result, the volume of the interior spaces and the pressure prevailing therein are changed, with the movement damping fluid flowing from one interior space into the other interior space, for example through openings in the piston, due to the pressure difference. The flow rate is determined by the size of the openings in the piston and the viscosity of the motion damping fluid. Due to the flow resistance, in particular due to the friction occurring during the flow through the openings, and / or due to the friction between the piston and a boundary wall of one in the housing The cylinder provided for the damping device which receives the piston, the movement of the piston and the components engaging the piston is braked, and the kinetic energy of the piston and the components engaging the piston is converted into thermal energy.

According to a further development of the invention, it can be provided that an actuating element for actuating the at least one damping device by means of the inner rail and / or by means of a control element arranged on the inner rail is arranged in the extension direction behind the inner rail and / or the control element arranged on the inner rail.

In one embodiment of the invention it can be provided that an actuating element for actuating the at least one damping device by means of the inner rail and / or by means of a control element arranged on the inner rail is designed as a web or projection running transversely or perpendicularly to the extension direction. In this description, a “web” is to be understood as an elongated thin element.

The at least one damping device is preferably arranged at least partially outside the outer rail or at least approximately completely inside the outer rail.

In a preferred embodiment of the invention, a pair of pull-out guides can be provided, one pull-out guide being arranged on a side of the pull-out on the left in the pull-out direction and the other pull-out guide on a right-hand side of the pull-out in the pull-out direction.

In a further development of the invention it can be provided that the damping devices of the pair of drawer guides are arranged mirror-symmetrically to a vertical center plane of the drawer running in the extension direction in the assembled state of the drawer guides. Alternatively, it can also be provided that, in the assembled state of the pair of pull-out guides, the damping device of one pull-out guide is arranged on an upper edge of the pull-out guide and the damping device of the other pull-out guide is arranged on a lower edge of the pull-out guide.

It can be provided that the pull-out guide has a latching device by means of which the at least one damping device and the inner rail can be detachably coupled to one another. Thus, the damping device can easily be returned to its initial state, especially when the pull-out guide is pulled out.

According to a development of the invention it can be provided that the locking device comprises a damper-side and an inner-rail-side locking element, wherein a locking part of the damper-side locking element interacts with a control cam which is arranged on a side of the locking part facing away from the inner-rail-side locking element, and wherein the locking part of the damper-side Latching element can be brought out of engagement with the inner rail-side latching element by moving the damper-side latching element in the extension direction along the control cam. Such a latching device enables, in particular, a simple return of the damping device to its initial state, which is less prone to failure.

In a particularly preferred embodiment of the invention, it can be provided that the latching part of the latching element on the damper side is pretensioned against the control cam.

The pull-out guide preferably has a self-retracting device for automatically retracting the pull-out guide from an at least partially extended state to the fully retracted state, the self-retracting device comprising at least one energy store and at least one driver engaging the at least one energy store. Such a self-closing device ensures that the Pull-out guide always reaches the fully pushed-in end position when pushing in the pull-out.

It can advantageously be provided that the at least one driver and an actuating element for actuating the at least one damping device when the pull-out guide is pushed in and / or pulled out are designed to be movable relative to one another in the pull-out direction.

According to a further development of the invention, it is provided that the at least one driver and an actuating element for actuating the at least one damping device are designed to be movable relative to one another in the pull-out direction both when inserting and when pulling out the pull-out guide. This ensures that the individual components are decoupled from one another.

A preferred embodiment of the invention provides that when the pull-out guide is pulled out, the at least one driver of the self-retracting device can be brought from the fully inserted position into a second position and locked in the second position.

In a further development of the invention it is provided that when the pull-out guide is pushed in before the at least one driver is unlocked, the at least one damping device can be actuated by means of the inner rail and / or a control element arranged on the inner rail. As a result, the actuation of the damping device is decoupled from the actuation of the at least one driver and thus the actuation of the pull-out guide is less prone to failure.

A preferred embodiment of the invention provides that the at least one driver and an actuating element for actuating the at least one damping device are designed to be movable relative to one another in a direction transverse to the pull-out direction of the pull-out guide when inserting and pulling out the pull-out guide. This way there is a decoupling ensures the movement of the at least one driver and the actuating element in a direction transverse to the pull-out direction. In particular, this enables the driver to be moved transversely to the pull-out direction into a locking position when the pull-out guide is pulled out, in which the driver remains until it is unlocked again by pushing in the pull-out guide.

The at least one damping device is preferably not moved back into its initial state by means of the at least one driver of the self-retracting device, but by means of a separate latching device.

According to a further development of the invention, it is provided that the damping device can be displaced from a first position into a second position by means of the separate locking device when the pull-out guide is pulled out of the fully inserted state, the locking elements of the locking device being able to be disengaged from one another in the second position and so that the damping device remains in the second position despite the further extension of the pull-out device.

This embodiment can offer the advantage that the control of the damping device by the inner rail is independent of the function of the self-closing device and thus larger installation tolerances between the position of the self-closing device and the position of the damping device are permissible. In this way, the damping device is preferably always safely pulled along by the inner rail when the pull-out guide is pulled out.

In an advantageous embodiment of the invention it is provided that the at least one damping device and / or the at least one self-closing device are arranged at least partially, preferably completely, outside or inside the pull-out guide.

According to a further development of the invention, it is provided that a latching element on the damper side is arranged on the at least one damping device, which latching element comprises a latching part in the form of a hammer, for example. This latching part is preferably controlled during the insertion movement and / or the extraction movement by a cam track in a base housing in such a way that it can be brought into engagement at least temporarily with a hook of a latching element on the inner rail side.

Further preferred features and / or advantages of the invention are the subject matter of the following description and the graphic representation of exemplary embodiments.

Fig. 1

eine schematische perspektivische Darstellung einer nicht erfindungsgemäßen Auszugführung in einem vollständig eingeschobenen Zustand, mit Blickrichtung auf eine Außenseite der Innenschiene der Auszugführung;

Fig. 2

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 in einem teilweise ausgezogenen Zustand, mit Blickrichtung auf die Außenseite der Innenschiene der Auszugführung;

Fig. 3

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 im teilweise ausgezogenen Zustand, mit Blickrichtung auf eine Innenseite der Innenschiene der Auszugführung, wobei zur übersichtlicheren Darstellung die Außenschiene und die Mittelschiene nicht dargestellt sind;

Fig. 4

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 in einem bis zur Betätigung einer Selbsteinzugsvorrichtung eingeschobenen Zustand, mit Blickrichtung auf die Außenseite der Innenschiene der Auszugführung;

Fig. 5

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 im bis zur Betätigung der Selbsteinzugsvorrichtung eingeschobenen Zustand, mit Blickrichtung auf die Innenseite der Innenschiene der Auszugführung, wobei zur übersichtlicheren Darstellung die Außenschiene und die Mittelschiene nicht dargestellt sind;

Fig. 6

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 in einem teilweise mittels der Selbsteinzugsvorrichtung eingezogenen Zustand, mit Blickrichtung auf die Außenseite der Innenschiene der Auszugführung;

Fig. 7

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 im teilweise mittels der Selbsteinzugsvorrichtung eingezogenen Zustand, mit Blickrichtung auf die Innenseite der Innenschiene der Auszugführung, wobei zur übersichtlicheren Darstellung die Außenschiene und die Mittelschiene nicht dargestellt sind;

Fig. 8

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 im vollständig eingeschobenen Zustand, mit Blickrichtung auf die Außenseite der Innenschiene der Auszugführung;

Fig. 9

eine schematische perspektivische Darstellung des in Auszugsrichtung hinteren Bereichs der Auszugführung aus Fig. 1 im vollständig eingeschobenen Zustand, mit Blickrichtung auf die Innenseite der Innenschiene der Auszugführung, wobei zur übersichtlicheren Darstellung die Außenschiene und die Mittelschiene nicht dargestellt sind;

Fig. 10

eine schematische perspektivische Darstellung eines Teils einer zweiten Ausführungsform einer Auszugführung, bei welcher ein schwenkbar an einer Innenschiene festgelegtes Steuerelement vorgesehen ist;

Fig. 11

eine schematische Seitenansicht des in Fig. 10 dargestellten Teils der zweiten Ausführungsform der Auszugführung;

Fig. 12

eine vergrößerte Darstellung des Bereichs XII in Fig. 11; und

Fig. 13

eine der Fig. 12 entsprechende schematische Darstellung der zweiten Ausführungsform der Auszugführung, wobei die Innenschiene etwas weiter in der Auszugsrichtung ausgezogen wurde.

In the figures show:

Fig. 1

a schematic perspective illustration of a pull-out guide not according to the invention in a fully inserted state, looking towards an outside of the inner rail of the pull-out guide;

Fig. 2

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 in a partially extended state, looking towards the outside of the inner rail of the pull-out guide;

Fig. 3

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 in the partially extended state, looking towards an inner side of the inner rail of the pull-out guide, the outer rail and the central rail not being shown for the sake of clarity;

Fig. 4

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 in one pushed in until a self-closing device is actuated, looking at the outside of the inner rail of the pull-out guide;

Fig. 5

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 in the pushed-in state until the self-closing device is actuated, looking towards the inside of the inner rail of the pull-out guide, the outer rail and the central rail not being shown for the sake of clarity;

Fig. 6

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 in a partially retracted state by means of the self-closing device, looking towards the outside of the inner rail of the pull-out guide;

Fig. 7

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 in the partially retracted state by means of the self-closing device, looking towards the inside of the inner rail of the pull-out guide, the outer rail and the middle rail not being shown for the sake of clarity;

Fig. 8

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 when completely pushed in, looking towards the outside of the inner rail of the pull-out runner;

Fig. 9

a schematic perspective illustration of the rear area of the pull-out guide in the pull-out direction Fig. 1 when fully pushed in, looking towards the inside of the inside rail of the pull-out runner, for a clearer view Representation, the outer rail and the central rail are not shown;

Fig. 10

a schematic perspective illustration of a part of a second embodiment of a pull-out slide, in which a control element which is pivotably attached to an inner rail is provided;

Fig. 11

a schematic side view of the in Fig. 10 illustrated part of the second embodiment of the pull-out guide;

Fig. 12

an enlarged view of the area XII in Fig. 11 ; and

Fig. 13

one of the Fig. 12 corresponding schematic representation of the second embodiment of the pull-out guide, the inner rail being pulled out a little further in the pull-out direction.

Identical or functionally equivalent elements are provided with the same reference symbols in all figures.

One in the Figures 1 to 9 The drawer slide shown as a whole, designated 100, comprises an outer rail 102, a central rail 104 and an inner rail 106.

For example, the outer rail 102 can be arranged on the body side and the inner rail 106 on the pull-out side. However, it is also possible to arrange the outer rail 102 on the extension side and the inner rail 106 on the body side.

The outer rail 102, the middle rail 104 and the inner rail 106 each have a C-shaped cross section taken in a direction perpendicular to the extension direction A.

The outer rail 102, the middle rail 104 and the inner rail 106 each comprise an upper and a lower limb, which in the assembled state of the pull-out guide 100 runs essentially horizontally, the surfaces of which are at least partially designed as rolling element raceways 108, and one each of the upper and lower limbs connecting rail back 110, which in the assembled state of the pull-out guide 100 runs essentially vertically ( Figures 1 to 9 ).

The pull-out guide 100 has rolling elements which are designed, for example, as spherical rolling elements and are held in a rolling element cage.

Rolling bodies of this type are arranged between the rolling body raceways 108 of the outer rail 102 and the rolling body raceways 108 of the central rail 104 in order to be able to move the central rail 104 in a guided manner on the outer rail 102.

Furthermore, such rolling elements are arranged between the rolling element raceways 108 of the central rail 104 and the rolling element raceways 108 of the inner rail 106 in order to be able to move the inner rail 106 in a guided manner on the central rail 104.

The inner rail 106 is arranged on the central rail 104 in such a way that, when the pull-out slide 100 is completely pushed in, the central rail 104 surrounds the inner rail 106 from three sides, namely from above, from below and on the inside of the inner rail 106, the back of the rail 110 being the Inner rail 106 is arranged facing away from the rail back 110 of the central rail 104.

The center rail 104 is arranged on the outer rail 102 in such a way that, when the pull-out guide 100 is completely pushed in, the outer rail 102 has at least one section of the center rail 104 lying at the front in the pull-out direction A from three sides, namely from above, from below and on the Outside of the central rail 104, the rail back 110 of the central rail 104 being arranged facing the rail back 110 of the outer rail 102.

In the rear area of the pull-out guide 100 in a pull-out direction A, along which the inner rail 106 and the central rail 104 can be pulled out relative to the outer rail 102, a combined pull-in and damping device 112 is arranged. The pull-in and damping device 112 comprises a damping device 114 and a self-closing device 116.

The pull-in and damping device 112 also preferably comprises a plate designed as a guide plate 118 and is arranged with the same on the inside of the rail back 110 of the outer rail 102, with a recess 120 in the lower leg of the outer rail 102 and thus also in the rolling element raceway 108b of the outer rail 102 can be provided through which the pull-in and damping device 112 extends.

In the embodiment according to Figures 1 to 9 The damping device 114 comprises a housing 122 and a piston on which a piston rod 124 projecting into the housing 122 is arranged, both the housing 122 and the piston rod 124 of the damping device 114 outside the outer rail 102, in the assembled state of the pull-out guide 100 below or below above the outer rail 102 can be arranged. However, an arrangement can also be provided completely within the outer rail 102, that is to say between the legs of the outer rail 102.

The piston rod 124 of the damping device 114 is preferably firmly connected to the guide plate 118 arranged on the outer rail 102.

The damping device 114 comprises, for example, two interior spaces separated from one another by means of the piston, in which a movement damping fluid, for example air, is arranged. The damping effect of the damping device 114 is achieved in that the piston is displaced relative to the housing 122 by means of the piston rod 124.

In an embodiment not shown, it can be provided that the housing 122 of the damping device 114 is firmly connected to the guide plate 118 and the piston rod 124 is movable relative to the housing 122 in the pull-out direction A or against the pull-out direction A, i.e. in the push-in direction E. is trained.

To move the housing 122 of the damping device 114 by means of the inner rail 106, an actuating element 126 is provided in the present exemplary embodiment, which is designed, for example, as a web or projection.

The actuating element 126 for actuating the damping device 114 is arranged in particular at the rear end of the housing 122 of the damping device 114 in the pull-out direction A. In this way, when the pull-out guide 100 is pushed in, the actuating element 126 can be moved far into a rear region of the pull-out guide 100 in the pull-out direction A by means of the inner rail 106. The damping device 114 with the actuating element 126 takes up only a very small amount of space. The middle rail 104 and the inner rail 106 can therefore be designed to be particularly long, which enables a large extension path and / or a particularly high load capacity of the extension guide 100.

The actuating element 126 has a front stop surface 130 in the pull-out direction A, on which the inner rail 106 can engage with its rear end in the pull-out direction A. The stop surface 130 of the actuating element 126 is formed from a material comprising an elastomer or a thermoplastic material.

The actuating element 126 for actuating the damping device 114 also has a latching element 132 on the damper side, for example in the form of a hammer, with a latching part 134. The latching part 134 of the latching element 132 on the damper side is pretensioned or can be pretensioned against a control cam 136 by the elasticity of the shape of the latching element 132 on the damper side and, when displaced in the extension direction A along the control cam 136, can be moved in a direction transverse to the extension direction A.

The control cam 136 has a ramp 137 and two sections 139a, 139b connected by means of the ramp 137, running parallel to the pull-out direction A and horizontally aligned in the assembled state of the pull-out guide 100, the section 139a being offset towards the locking element 138 on the inner rail side and the section 139b is arranged offset away from the inner rail-side latching element 138.

The section 139a of the control cam 136 offset towards the locking element 138 on the inner rail side is arranged in the insertion direction E in front of the section 139b offset away from the locking element 138 on the inner rail side.

The ramp 137 of the control cam 136 is a section of the control cam 136 that runs obliquely between the horizontal sections 139a, 139b.

The control cam 136 is consequently designed such that the damper-side latching element 132 is pretensioned towards the inner-rail-side latching element 138 by means of the section 139a of the control cam 136 offset towards the inner-rail-side latching element 138 when the pull-out guide 100 is fully pushed in.

The latching element 138 on the inner rail side is provided, in particular formed, on a control element 140 which is arranged on the inner rail 106.

The inner rail-side latching element 138 is designed to be flexible in a direction transverse to the extension direction A, so that the inner-rail-side latching element 138 can also be guided past the damper-side latching element 132 in the insertion direction E when the damper-side latching element 132 is in a position in which the damper-side Latching element 132 is in engagement with the inner rail-side latching element 138 during normal operation of the pull-out guide 100.

In the fully inserted state of the pull-out slide 100, the latching element 132 on the damper side is in engagement with the inner-rail-side latching element 138 during normal operation of the pull-out slide 100. The latching element 132 on the damper side and the latching element 138 on the inner rail side together form a latching device 142, which enables a releasable coupling between the damping device 114 and the inner rail 106.

The self-retracting device 116 comprises an energy store 144, designed for example as a spring, in particular a tension spring 143, and a driver 146 on which the energy store 144 engages.

The energy store 144 is guided via a deflection device 148, which is arranged by means of the guide plate 118 in the vertical direction essentially in the center and in the insertion direction E at the front end of the rail back 110 of the outer rail 102, and extends in particular starting from a fastening device 150, which for example is arranged at a front end in the extension direction A of the guide plate 118 and / or adjacent to a front end in the extension direction A of the recess 120 in the lower leg of the outer rail 102, initially in the insertion direction E and after the deflection by means of the deflection device 148 in Essentially in the pull-out direction A up to the driver 146.

The driver 146 has a guide pin 152 facing, for example, the outer rail 102 and one facing the inner rail, in Fig. 2 , 4th and 6th driving pin 154 shown. The guide pin 152 is guided in particular in a guide channel 156 of the guide plate 118.

The guide channel 156 is subdivided into a guide section 158, which runs at least approximately horizontally when the pull-out guide 100 is installed, and a latching section 160, which at the front end of the guide section 158 in the pull-out direction A transversely to the same, for example when the pull-out guide 100 is installed vertically downwards or vertically upwards.

In particular when using two identical pull-out guides 100 for a pair of pull-out guides 100 for receiving and guiding a pull-out, one of the pull-out guides 100 is then mounted in such a way that the latching section 160 protrudes vertically downward from the guide section 158, while the other of the pull-out guides 100 then is mounted in such a way that the latching section 160 protrudes vertically upwards from the guide section 158.

By means of the guide pin 152, the driver 146 can be moved in the pull-out direction A along the guide section 158 and then guided transversely to the pull-out direction A along the latching section 160.

Since the force exerted on the driver 146 by means of the energy store 144 acts essentially parallel to the insertion direction E, the driver 146 can be brought into a latching position by moving the guide pin 152 into the latching section 160 of the guide channel 156 ( Fig. 2 and 3 ).

The driver 146 can be actuated by means of the control element 140, which is arranged on the inner rail 106. The control element 140 comprises an inlet section 162, a control channel 164 and an end section 166.

The pull-out slide 100 described above works as follows:
When inserting the pull-out guide 100 from the fully extended state ( Fig. 2 and 3 ) the inner rail 106 is moved relative to the outer rail 102 and relative to the central rail 104 towards the pull-in and damping device 112 arranged at the front end of the outer rail 102 in the insertion direction E until the front end of the inner rail 106 in the insertion direction E is at the Stop surface 130 of the actuating element 126 engages.

As a result, when the pull-out guide 100 is pushed in further, the housing 122 of the damping device 114 is displaced in the insertion direction E.

By shifting the housing 122 of the damping device 114 in the insertion direction E, the volume of the two interior spaces of the housing 122 and the pressure prevailing therein are changed, the movement damping fluid due to the pressure difference, for example through openings in the piston, from one interior space to the other interior space flows. The flow rate is determined by the size of the openings in the piston and the viscosity of the motion damping fluid. As a result of the friction occurring during the flow through the openings, the kinetic energy of the inner rail 106 and the extension arranged on it is converted into thermal energy. As a result, an insertion movement of the pull-out guide 100 is braked.

The actuation of the damping device 114 takes place preferably before or during or after the start of the actuation of the self-closing device 116.

When the inner rail 106 is pushed in, the driver 146 is actuated by means of the control element 140 in that the driver pin 154 of the driver 146 is in the control element 140 by means of the inlet section 162 and is guided along the control channel 164 into the end section 166 of the control element 140 ( Fig. 4 and 5 ). Due to the shape of the control channel 164 and the end section 166 of the control element 140, during normal operation when the pull-out guide 100 is pushed in, the driver 146, which is then arranged in the detent position, is unlocked from this detent position by means of the control element 140. The guide pin 152 of the driver 146 is guided out of the latching section 160 of the guide channel 156 and guided into the guide section 158 of the guide channel 156.

Due to the force which is exerted on the driver 146 in the insertion direction E by means of the energy store 144, both the driver 146 and the inner rail 106 latched to the driver 146 by means of the driver pin 154 and the control element 140 are moved from the latching position to the fully inserted Pulled position of the pull-out guide 100 ( Fig. 1 , 8th and 9 ).

The actuation of the damping device 114 by means of the actuation element 126 takes place preferably only by moving the inner rail 106. The driver 146 and the actuation element 126 preferably do not come into contact with one another.

In particular, it can be provided that the control element 140 and / or the inner rail 106 acts directly on the actuating element 126 and moves it in the insertion direction E, in particular pushing it.

When the pull-out guide 100 is pulled out from the completely pushed-in state, the initial state of the damping device 114 is restored by moving the housing 122 relative to the piston rod 124 in the pull-out direction A by means of the latching device 142.

The housing 122 of the damping device 114 is pulled out when the inner rail 106 is pulled out by means of the latching device 142 from a first position in which the piston rod 124 is maximally inserted into the housing 122, to a second position in which the piston rod 124 is maximally extended out of the housing 122 is moved, wherein in the second position the damper-side latching element 132 disengages from the inner-rail-side latching element 138, so that the housing 122 of the damping device 114 remains in the second position despite a further extension of the inner rail 106.

In detail, the locking device 142 functions in such a way that by moving the damper-side locking element 132 of the pull-out guide 100 in the pull-out direction A, the locking part 134 is shifted along the control cam 136 and thus initially horizontally along the section 139a of the control cam 136 offset towards the locking element 138 on the inner rail side . By further displacement of the damper-side latching element 132 in the extension direction A, the latching part 134 is then due to its bias along the ramp 137 of the control cam 136 and thus during the movement in the extension direction A also perpendicular to the same in the vertical direction, in particular downwards or upwards, moved away from the inner rail-side latching element 138 and thus brought out of engagement with the inner-rail-side latching element 138 ( Fig. 2 and 4th ).

When pulling out the pull-out guide 100 from the fully inserted state, the self-closing device 116 is returned to its initial state in that the driver 146 is displaced along the guide channel 156 by means of the driver pin 154, which is located in the end section 166 of the control element 140, by pulling out the inner rail 106 becomes. The driver 146 is stopped at the end of the guide section 158 of the guide channel 156 in its movement in the extension direction A and, due to the shape of the control element 140, is moved by means of the driver pin 154 along the latching section 160 of the guide channel 156 in the vertical direction, in particular downwards or upwards .

With this movement of the driver 146 from the completely pushed-in position into the latching position, the energy store 144 is charged at the same time, that is to say the spring is tensioned.

When the pull-out guide 100 is pushed in and pulled out, the movement of the driver 146 is essentially independent of the movement of the actuating element 126.

One in the Figures 10 to 13 The illustrated embodiment of a pull-out slide 100 according to the invention differs from that in FIG Figures 1 to 9 The embodiment shown essentially in that the self-closing device 116 is arranged together with the damping device 114 essentially completely within the outer rail 102.

In particular, the self-closing device 116 and the damping device 114 are arranged between two legs 170 of the outer rail 102. The pull-out guide 100 according to Figures 10 to 13 also differs from the pull-out guide 100 described above in particular in that the control element 140 is arranged pivotably on the inner rail 106. The control element 140 is arranged on an inner side of the inner rail 106, in particular so as to be pivotable about a pivot axis 172.

The pivot axis 172 is in particular perpendicular to the rail back 110 of the inner rail 106 and thus also perpendicular to the extension direction A and perpendicular to the insertion direction E.

For the pivotable arrangement, for example, a fastening opening 174 arranged centrally between the two legs 170 of the inner rail 106 is provided in the inner rail 106. The control element 140 be fixed movably for example by means of a pin, a screw, a rivet connection or the like.

The control element 140 further preferably comprises a stop element 176.

In particular, freedom of movement of the control element 140 can be restricted by means of the stop element 176. In particular, a maximum pivoting range of the control element 140 can be specified.

The stop element 176 is formed in particular by a stop projection 178.

The stop projection 178 projects in particular away from the control element 140 in the direction of the rail back 110 of the inner rail 106.

In particular, the stop projection 178 extends into a recess 180.

The recess 180 is formed in particular in the rail back 110 of the inner rail 106.

The stop projection 178 is preferably dimensioned smaller than the recess 180, which ultimately dictates the freedom of movement of the control element 140.

The control element 140 further comprises one or more, in particular two, guide projections 182.

The guide projections 182 protrude beyond one or both legs 170 of the inner rail 106 in a direction perpendicular to the pull-out direction A and perpendicular to the insertion direction E and at the same time parallel to the rail back 110 of the inner rail 106.

However, it can also be provided that only a single guide projection 182 projects beyond a leg 170 of the inner rail 106.

As an alternative or in addition to this, it can be provided that one or more guide projections 182 protrude in the insertion direction E beyond an end 184 of the inner rail 106 facing the self-retracting device 116.

The pull-out guide 100 according to Figures 10 to 13 preferably includes one or more baffles 186.

The one or more guide surfaces 186 are used in particular to abut and / or guide the control element 140.

The one or more guide surfaces 186 can in particular be brought into engagement with the one or more guide projections 182 of the control element 140.

The pull-out guide 100 preferably comprises two or more guide surfaces 186 which form a guide channel 188.

By means of such a guide channel 188, in particular two guide projections 182 of the control element 140 arranged opposite one another can be received and guided.

The ends 190 of the guide projections 182 facing away from one another preferably have a distance from one another which essentially corresponds to the distance between the guide surfaces 186 which form the guide channel 188 or is slightly smaller than this distance.

In this way it can be ensured that the control element 140 by means of the guide projections 182 and the guide surfaces 186, for example, as possible is moved exactly parallel to the direction of insertion E and / or parallel to the direction of extraction A.

The control element 140 can thus, in particular, be reliably positioned relative to the driver 146.

As a result of the pivotable arrangement of the control element 140 on the inner rail 106, reliable coupling and decoupling of the control element 140 with the driver 146 can be ensured, in particular independently of a load-dependent deformation or deflection of the end 184 of the inner rail 106 facing the self-retracting device 116.

How in particular Fig. 13 As can be seen, the control element 140 is arranged completely outside of the guide channel 188 in different pull-out positions of the pull-out guide 100.

When the pull-out guide 100 is pushed in, it must therefore be ensured that the control element 140 reliably gets into the guide channel 188.

For this purpose, the pull-out guide 100 comprises one or more deflection surfaces 192 which, when the control element 140 comes into contact with one or more other components of the pull-out guide 100, lead to a pivoting movement of the control element 140 about the pivot axis 172 and thus bring the control element 140 into a pivoting position which Insertion of the control element 140 into the guide channel 188 allows.

One or more deflection surfaces 192 are arranged and / or formed on the control element 140, in particular on the one or more guide projections 182, for example.

As an alternative or in addition to this, it can be provided that one or more deflection surfaces 192 on further components of the pull-out guide 100, for example a spring receptacle 194 and / or a damper receptacle 196 are arranged.

The spring receptacle 194 is in particular a housing for receiving an energy store 144 of the self-closing device 116, which is used, for example, as a tension spring 143.

The damper receptacle 196 is in particular a receptacle for the damping device 114, in particular for the housing 122 of the damping device 114.

The spring receptacle 194 can also have or form a guide surface 186, for example.

Furthermore, the damper receptacle 196 can preferably have or form a guide surface 186.

In particular, two guide surfaces 186 for forming the guide channel 188 are formed by means of mutually facing boundary walls 198 of the spring receptacle 194 on the one hand and the damper receptacle 196 on the other hand.

Like the one in particular Fig. 12 and 13th As can be seen, a leg 170 of the inner rail 106 is shortened, so that the end 184 of the inner rail 106 facing the self-retracting device 116 is formed asymmetrically. In particular, this enables simple accessibility of the control element 140.

The control element 140 can thereby be brought into engagement in particular with the damping device 114 in order to actuate it.

For this purpose, the control element 140 has in particular a latching element 138 on the inner rail side, which is formed by a guide projection 182 and can be brought into engagement with the latching element 132 on the damper side.

In terms of functionality, the one in the Figures 10 to 13 The illustrated embodiment of the pull-out guide 100 from the in the Figures 1 to 9 illustrated embodiment essentially by the pivotable arrangement of the control element 140. The actuation of the pull-out guide 100 does not change for a user. However, there is increased functional reliability under various load conditions, for example if a drawer guided by means of the drawer guide 100 is too heavily loaded, which can result in undesired deformation and / or deflection of the inner rail 106.

For example, in the Figures 1 to 9 The illustrated embodiment of the pull-out guide 100 can result in excessive deformation and / or deflection of the inner rail 106, a blockage of the self-closing device 116 and / or the damping device 114 if the associated components of the pull-out guide 100 wedge or otherwise strike one another.

The pivotable control element 140 of the pull-out guide 100 according to FIGS Figures 10 to 13 this undesirable effect can at least be reduced or completely eliminated.

In particular, the deflection surfaces 192 can ensure that the control element 140 is pivoted into a position when the pull-out guide 100 is pushed in, which enables it to be introduced into the guide channel 188.

Within the guide channel 188, the guidance of the guide projections 182 on the guide surfaces 186 then results in a reliable and always essentially identical positioning of the control element 140 relative to the driver 146 and / or relative to the guide plate 118.

The coupling of the control element 140 to the driver 146 is thereby less prone to failure.

In addition, a direction-dependent impairment of the coupling, in particular depending on an assembly of the pull-out guide 100 on a right or left side of a pull-out, can thereby preferably be avoided.

Incidentally, it is correct in the Figures 10 to 13 The illustrated embodiment of the pull-out guide 100 in terms of structure and function with that in FIGS Figures 1 to 9 illustrated embodiment that reference is made to the preceding description thereof.

List of reference symbols

100

Pull-out guide

102

Outer rail

104

Middle rail

106

Inner rail

108

Rolling element raceway

110

Rail back

112

Feeding and damping device

114

Damping device

116

Self-retracting device

118

Guide plate

120

Recess

122

casing

124

Piston rod

126

Actuator

130

Stop surface

132

Locking element

134

Locking part

136

Control curve

137

ramp

138

Locking element

139a

section

139b

section

140

Control

142

Locking device

143

Tension spring

144

Energy storage

146

Carrier

148

Deflection device

150

Fastening device

152

Guide pin

154

Driving pin

156

Guide channel

158

Guide section

160

Locking section

162

Inlet section

164

Control channel

166

End section

170

leg

172

Swivel axis

174

Mounting hole

176

Stop element

178

Stop protrusion

180

Recess

182

Leading edge

184

End of the inner rail

186

Guide surface

188

Guide channel

190

End of the leading edge

192

Deflector

194

Spring mount

196

Damper mount

198

Boundary wall

A.

Extension direction

E.

Direction of insertion

Claims (15)

1. Drawer guide (100) for guiding a drawer that can be pulled out of a carcass in a pull-out direction (A), comprising an outside rail (102) and an inside rail (106) mounted on rolling bodies
   wherein the drawer guide (100) comprises a self-closing device (116) for retracting the drawer guide (100) from an at least partially extended state,
   wherein the drawer guide (100) comprises a control element (140) arranged on the inside rail (106) and a catch (146) arranged on an energy store (144) of the self-closing device (116), wherein the control element (140) and the catch (146) are releasably coupleable to one another,
   characterized in that
   the control element (140) is pivotably fixed to the inside rail (106).
2. Drawer guide (100) in accordance with Claim 1, characterized in that the control element (140) is pivotable about a pivot axis (172) oriented at least approximately perpendicular to the pull-out direction (A).
3. Drawer guide (100) in accordance with either of Claims 1 or 2, characterized in that the control element (140) is pivotably fixed to an inside of a rail back (110) of the inside rail (106).
4. Drawer guide (100) in accordance with any one of Claims 1 to 3, characterized in that the control element (140) comprises one or more guide projections (182), which project beyond one or two legs (170) of the inside rail (106).
5. Drawer guide (100) in accordance with Claim 4, characterized in that the control element (140) comprises an entry portion (162), a control channel (164), and an end portion (166) for guiding and accommodating a catch pin (154) of the catch (146), wherein the entry portion (162), the control channel (164), and/or the end portion (166) are arranged between two guide projections (182) of the control element (140) in a direction running perpendicular to the pull-out direction (A) and parallel to a rail back (110) of the outside rail (102).
6. Drawer guide (100) in accordance with either of Claims 4 or 5, characterized in that the one or more guide projections (182) each have one or more deflecting faces (192) extending obliquely to the pull-out direction (A), wherein the one or more deflecting faces (192) cause a pivotal movement of the control element (140) upon contact with a further component of the drawer guide.
7. Drawer guide (100) in accordance with any one of Claims 1 to 6, characterized in that the drawer guide (100) comprises one or more guide faces (186) against which one or more guide projections (182) of the control element (140) are able to abut for positioning the control element (140) relative to the catch (146).
8. Drawer guide (100) in accordance with Claim 7, characterized in that the control element (140) comprises two guide projections (182), which project in mutually opposed directions beyond two legs (170) of the inside rail (106), wherein mutually opposed outer ends (190) of the guide projections (182) are at a distance from one another in a direction running perpendicular to the pull-out direction (A) and parallel to a rail back (110) of the outside rail (102), said distance corresponding at least approximately to a distance of two guide faces (186) from one another.
9. Drawer guide (100) in accordance with either of Claims 7 or 8, characterized in that one or more guide faces (186) are formed by one or more delimiting walls (198) of the energy store (144) and/or by one or more delimiting walls (198) of a damping device (114) of the drawer guide (100) and/or by a guide plate (118) for guiding the catch (146).
10. Drawer guide in accordance with any one of Claims 7 to 9, characterized in that an end (184) of the inside rail (106) facing toward the self-closing device (116), in a fully retracted and unloaded state of the drawer guide (100), is at a vertical and/or horizontal distance from the guide faces (186), said distance being at least about 2 mm, in particular at least about 3 mm.
11. Drawer guide in accordance with any one of Claims 1 to 10, characterized in that an end (184) of the inside rail (106) facing toward the self-closing device (116) is free-wheeling and/or is not supported on other components of the drawer guide (100).
12. Drawer guide (100) in accordance with any one of Claims 1 to 11, characterized in that the drawer guide (100) comprises a guide channel (188), by means of which the control element (140), at least upon a retracting movement of the inside rail (106) by means of the self-closing device (116), is holdable at an at least approximately constant distance from the rolling body tracks (108) of the outside rail (102).
13. Drawer guide (100) in accordance with any one of Claims 1 to 12, characterized in that the drawer guide (100) comprises a stop element (176) for delimiting a pivotal movement of the control element (140) relative to the inside rail (106).
14. Drawer guide (100) in accordance with Claim 13, characterized in that the stop element (176) is a stop projection (178) of the control element (140), which projects into a recess (180) in a rail back (110) of the inside rail (106).
15. Drawer guide (100) in accordance with any one of Claims 1 to 14, characterized in that a leg (170) of the inside rail (106) is of shortened configuration at an end (184) of the inside rail (106) facing toward the self-closing device (116).

Images