EP3281553A1 - Slide mechanism - Google Patents

Abstract

In order to create a pullout guide, which allows a high load and / or a large pull-out path and a reliable locking in an inserted state, it is proposed that the pullout guide for guiding a pull-out in a pull-out from a body extract an outer rail and mounted on rolling elements Inner rail comprises, wherein the pullout guide comprises a Selbsteinzugsvorrichtung for pulling the pullout guide from an at least partially extended state, wherein the pullout guide comprises a arranged on the inner rail control and an arranged on an energy storage of Selbsteinzugsvorrichtung driver, wherein the control and the driver are releasably coupled to each other wherein the control is pivotally fixed to the inner rail.

Description

The present invention relates to an at least double-railed or at least three-railed slide-out guide for guiding a pull-out of a body extract, comprising an outer rail, an inner rail mounted on rolling elements and optionally at least one mounted on rolling elements center rail.

Such slide guides are for example from the DE 10 2008 011 481 A1 known.

The present invention has for its object to provide a slide-out, which allows a high load and / or a large Auszugsweg and a reliable locking in an inserted state.

This object is achieved by a pullout guide according to claim 1.

The pullout guide is used in particular for guiding a pull-out in a pull-out direction from a body extract.

Preferably, the pullout guide comprises an outer rail and an inner rail mounted on rolling elements.

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

The rolling elements are in particular spherical.

It may be advantageous if the pullout guide comprises at least one center 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 middle rail.

It can be advantageous if the pull-out guide comprises a self-closing device for pulling in the pull-out guide from an at least partially extended state.

By means of the self-closing device, the drawer guide can be brought in particular into a completely inserted state.

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

The control and the driver are preferably releasably coupled to each other, in particular to the inner rail and the energy storage releasably coupled together.

In one embodiment of the invention it is provided that the control is pivotally fixed to the inner rail. Compared to the known in the art pullout guides, in which the control particular immovably fixed to the inner rail or formed by the inner rail, resulting in a pivotal fixing of the control on the inner rail, a separation of the coupling on the one hand and the particular load-related movement or Deformation of the inner rail on the other.

In particular, can be ensured by a pivotal fixing of the control on the inner rail reliable operation of the self-closing device even if the inner rail, for example due to too high a load in the extract undesirably deformed or deflected, in particular vertically deflected is.

By the pivotal fixing of the control on the inner rail, it may preferably be possible to use a single embodiment of the pullout guide for a pair of pullout guides for receiving and guiding a statement on a carcass.

A pair of pullout guides then preferably comprises two identical trained pullout guides.

Since the two pullout guides of a pair of pullout guides are preferably mounted or mountable respectively with the inner rail in the direction of the pullout, one of the pullout guides is inverted and / or inverted mounted or mountable when using two identical pullout guides for the pair of pullouts. As a result, unbalanced deflections and / or deformations of the pair of pullout guides and / or uneven and / or asynchronous actuations of the self-closing devices and / or damping devices can result, in particular when the pullout guides have to absorb a high load. The pivotable control element can also be used to guarantee a reliable and at least approximately synchronous actuation of the self-closing device and / or damping device.

It may be advantageous if the control element is pivotable about a pivot axis aligned at least approximately perpendicular to the extension direction. The pivot axis is preferably aligned at least approximately perpendicular to a rail back of the inner rail.

The control is in particular pivotally fixed to an inner side of a rail back of the inner rail.

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

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

In the assembled state of the pullout guide, the one or more guide projections preferably project in the vertical direction, in particular upwards and / or downwards, beyond one or two limbs of the inner rail.

It may be favorable if the control 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 in a direction perpendicular to the extension direction and parallel to a rail back of the outer rail extending direction between two Leitvorsprüngen the control.

It can be provided that the one or more guide projections each have one or more obliquely extending to the extension direction baffles.

The one or more deflection surfaces preferably cause a pivoting movement of the control element when in contact with a further component of the drawer guide.

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

One or more deflection surfaces may alternatively or additionally be formed on other components of the drawer guide as the one or more Leitvorsprüngen the control and / or arranged.

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

The pullout guide preferably comprises one or more guide surfaces on which one or more guide projections of the control element for positioning the control element relative to the driver can be applied.

By means of the one or more baffles, in particular a translation movement of the control element running parallel to the extension direction and / or insertion 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 the inner rail facing the self-closing device, for example independently of a height position of this end of the inner rail.

The control preferably assumes different pivotal orientations relative to the inner rail, in particular depending on a height position of the inner rail facing the self-closing 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 over two legs of the inner rail, wherein opposite outer ends of the guide projections in a direction perpendicular to the extension direction and parallel to a rail back of the outer rail extending direction spaced from each other, which at least approximately corresponds to a distance between two guide surfaces, in particular two mutually facing guide surfaces.

By means of the Leitvorsprünge the control is characterized in particular accurately fit between the two guide surfaces feasible to ultimately achieve a reliable positioning of the control.

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

Alternatively or additionally, it may be provided that one or more baffles are formed by one or more boundary walls of a damping device of the drawer guide.

In addition, as an alternative or in addition thereto, provision can be made for one or more guide surfaces to be formed by a guide plate for guiding the driver.

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

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

The guide plate for guiding the driver extends in particular substantially flat on an inner side of the outer rail. However, in particular for the formation of one or more fins can also be provided be that the guide plate comprises one or more serving as guide surfaces projections, webs, etc.

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

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

One of the self-closing device facing the end of the inner rail is thus not supported and / or guided in particular on other components of the pullout guide.

It may be favorable if a self-closing device facing the end of the inner rail in a fully inserted and unloaded state of the pullout guide of one or more vanes, in particular of all vanes, a vertical and / or horizontal distance which at least about 2 mm, for example at least about 3 mm.

These values preferably also result in a normally loaded state of the drawer guide, that is to say in the case of a state of normal use in which an excerpt guided by means of the drawer guide experiences a load lying within design specifications.

In one embodiment of the invention can be provided that the pullout guide comprises a guide channel, by means of which the control element at least at a retraction movement of the inner rail by means of Selbsteinzugsvorrichtung in at least approximately constant distance to the Wälzkörperlaufbahnen the outer rail durable and / or feasible.

The guide channel is formed in particular by two mutually parallel guide surfaces.

In particular, the guide channel runs essentially parallel to the extension direction and / or feed direction.

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

The baffles are in particular flat surfaces, that is, in each case in a plane extending surfaces.

It can be provided that the pullout 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 on the control element itself and / or arranged.

By means of the stop element is in particular a pivoting movement of the control relative to the inner rail limited or limited such that the one or more Leitvorsprünge always come with the insertion of the pullout guide with at least one guide surface in contact or engagement. In particular, an undesirable too strong deflection of the control, which could lead to a blocking of the pullout guide during the insertion movement, can be effectively prevented.

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

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

By suitable dimensioning of the stop projection and / or the recess a maximum range of motion of the control can be adjusted relative to the inner rail.

In one embodiment of the invention can be provided that a leg of the inner rail, formed on one of the self-closing device facing the end of the inner rail shortened.

Under a shortened training is to be understood in particular that this leg does not extend completely to the self-closing device facing the end of the inner rail, but previously ends.

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

Due to the shortened design of a leg of the inner rail can be achieved in particular an optimized accessibility of a locking element for coupling the control element with a damping device of the pullout guide.

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

It may be favorable if, in the assembled state of the pullout guide, a plane running essentially vertically and in the direction of extension intersects all rolling body raceways of the pullout guide and the at least one damping device. In particular, when all rolling element raceways of the pullout guide and the at least one damping device mounted in the State of the pullout guide are arranged substantially one above the other, act under a load of the pullout guide in the direction of gravity on the pullout guide low torsional forces, so that the pullout guide is largely torsion free in operation.

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

It can be particularly advantageous if the outer rail, the at least one middle rail and / or the inner rail have a substantially C-shaped cross-section taken in a direction perpendicular to the pull-out direction. Thus, a nested and thus particularly compact arrangement of the rails relative to each other is possible.

It may be favorable if at least one middle rail in the fully inserted state of the pullout guide is surrounded at least in sections by the outer rail on at least three sides. Thus, the at least one center rail is particularly stable and space-saving on the outer rail of the pullout guide feasible.

According to an advantageous embodiment of the invention, the inner rail is surrounded in the fully inserted state of the pullout guide on at least three sides of the at least one center rail. As a result, the inner rail is particularly stable and space-saving on the at least one middle rail feasible.

According to a further advantageous embodiment of the invention it is provided that the pullout guide is designed as a full extension guide. In this way, the drawer guide on a particularly large extract path. The extract 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 may be provided on which the inner rail and / or the control element arranged on the inner rail directly engages and / or which serves to actuate the at least one damping device.

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

Alternatively or additionally, 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 separate by means of a piston inner spaces 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. Thereby, the volume of the internal spaces and the pressure prevailing therein are changed, wherein the movement damping fluid flows due to the pressure difference, for example through openings in the piston from one interior to the other interior. The flow rate is dictated by the size of the openings in the piston and the viscosity of the motion damping fluid. By the flow resistance, in particular due to the friction occurring during the passage of the openings, and / or by the friction between the piston and a boundary wall in the housing the damper device provided cylinder which receives the piston, the movement of the piston and the components acting on the piston is braked, and there is a conversion of the kinetic energy of the piston and the components acting on the piston into thermal energy.

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

In one embodiment of the invention it can be provided that an actuating element for actuating the at least one damping device is formed by means of the inner rail and / or by means of a arranged on the inner rail control as a transverse or perpendicular to the extension direction extending web or projection. A "web" in this description is an elongate thin element to understand.

Preferably, the at least one damping device is arranged at least partially outside the outer rail or at least approximately completely within the outer rail.

In a preferred embodiment of the invention, a pair of pullout guides may be provided, wherein a pullout guide is disposed on a left side of the pullout in the extension direction and the other pullout guide on a right side of the pullout in the extension direction.

In a further development of the invention it can be provided that the damping devices of the pair of pullout guides in the assembled state of the pullout guides are arranged mirror-symmetrically to a longitudinal center plane of the pullout extending vertically and in the pullout direction.

Alternatively, however, it may also be provided that in the assembled state of the pair of extension guides, the damping device of a pull-out guide at an upper edge of the pullout guide and the damping device of the other pullout guide is arranged on a lower edge of the pullout guide.

It can be provided that the pullout guide has a latching device, by means of which the at least one damping device and the inner rail are releasably coupled to one another. Thus, the damping device, in particular when pulling out the pullout guide is easily returned to its initial state.

According to a development of the invention 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 cooperates with a control cam which is disposed on a side facing away from the inner rail locking element side of the locking part, and wherein the locking part of the damper side Locking element by moving the damper-side locking element in the extension direction along the control cam out of engagement with the inner rail-side locking element can be brought. Such a locking device in particular allows a simple and less prone to error return of the damping device in its initial state.

In a particularly preferred embodiment of the invention can be provided that the locking part of the damper-side locking element is biased against the control cam.

The pull-out guide preferably has a self-pull-in device for automatically pulling the pull-out guide from an at least partially extended state into the completely inserted state, wherein the self-pull-in device comprises 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 when inserting the drawer always reaches the fully inserted end position.

Advantageously, it can be 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 during insertion and / or when the drawer guide is pulled out in the extension direction.

According to a 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 both during insertion and when pulling out the extension guide in the extension direction. This ensures a decoupling of the individual components from each other.

A preferred embodiment of the invention provides that when pulling out the pullout guide, the at least one driver of the self-closing device from the fully inserted position can be brought into a second position and latched in the second position.

In a further development of the invention, it is provided that upon insertion of the pullout guide against unlatching of the at least one driver, the at least one damping device can be actuated by means of the inner rail and / or a control 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 operation of the pullout guide little susceptible to interference.

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 in a direction transverse to the extension direction of the pullout guide during insertion and when pulling the pullout guide are designed to be movable relative to each other. In this way is a decoupling ensures the movement of the at least one driver and the actuating element in a direction transverse to the extension direction. In particular, this makes it possible to move the driver when pulling the drawer guide transversely to the extension direction in a locking position in which the driver remains until it is unlocked by the insertion of the drawer guide again.

Preferably, the at least one damping device is not moved back by means of the at least one driver of the self-closing device, but by means of a separate locking device in its initial state.

According to a development of the invention, it is provided that the damping device by means of the separate locking device when pulling out the pullout guide from the fully inserted state is displaceable from a first position to a second position, wherein the locking elements of the latching device in the second position can be brought out of engagement with each other and so that the damping device remains in the second position despite the further extension of the extension 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 Selbsteinzugsvorrichtung and thus larger tolerances between the position of the Selbsteinzugsvorrichtung and the position of the damping device are allowed. The damping device is preferably always safely pulled along by the inner rail when pulling out the pullout guide in this way.

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 pullout guide.

According to a development of the invention, it is provided that a damper-side latching element is arranged on the at least one damping device, which comprises a latching part formed, for example, in the form of a hammer. Preferably, this locking part is controlled during the insertion movement and / or the pull-out movement by a curved path in a base housing so that it is at least temporarily engageable with a hook of an inner rail-side locking element.

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

Fig. 1

eine schematische perspektivische Darstellung einer 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 view of an extension guide according to the invention in a fully inserted state, looking towards an outer side of the inner rail of the pullout guide;

Fig. 2

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in a partially extended state, looking towards the outside of the inner rail of the pullout guide;

Fig. 3

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in the partially extended state, looking towards an inner side of the inner rail of the pullout guide, wherein the outer rail and the center rail are not shown for clarity of illustration;

Fig. 4

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in one until the operation of a self-closing device inserted state, looking towards the outside of the inner rail of the pullout guide;

Fig. 5

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in up to the operation of the self-closing device inserted state, looking towards the inside of the inner rail of the pullout guide, the outer rail and the center rail are not shown for clarity of illustration;

Fig. 6

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in a partially retracted by means of Selbsteinzugsvorrichtung state, looking towards the outside of the inner rail of the pullout guide;

Fig. 7

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in partially retracted by means of Selbsteinzugsvorrichtung state, looking towards the inside of the inner rail of the pullout guide, the outer rail and the center rail are not shown for clarity of illustration;

Fig. 8

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in the fully inserted state, looking towards the outside of the inner rail of the pullout guide;

Fig. 9

a schematic perspective view of the rear in the extension direction range of the pullout guide Fig. 1 in the fully inserted state, with a view towards the inside of the inner rail of the pullout guide, with the clearer Representation of the outer rail and the center rail are not shown;

Fig. 10

a schematic perspective view of a portion of a second embodiment of an extension guide in which a pivotally mounted on an inner rail control is provided;

Fig. 11

a schematic side view of the in Fig. 10 shown part of the second embodiment of the pullout 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 pullout guide, wherein the inner rail has been pulled slightly further in the extension direction.

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

One in the Fig. 1 to 9 illustrated, as a whole with 100 drawer slide comprises an outer rail 102, a middle rail 104 and an inner rail 106th

For example, the outer rail 102 on the body side and the inner rail 106 can be arranged on the side. However, it is also possible to arrange the outer rail 102 on the exhaust 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 include an upper and a lower, in the assembled state of the pullout guide 100 substantially horizontally extending legs whose surfaces are at least partially formed as Wälzkörperlaufbahnen 108, and one each of the upper and the lower leg connecting, in the assembled state of the pullout guide 100 substantially vertically extending rail back 110 ( Fig. 1 to 9 ).

The drawer guide 100 has rolling elements, which are formed for example as spherical rolling elements and 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 middle rail 104 in order to be able to displace the middle rail 104 on the outer rail 102.

Further, such rolling elements between the Wälzkörperlaufbahnen 108 of the center rail 104 and the Wälzkörperlaufbahnen 108 of the inner rail 106 are arranged to move the inner rail 106 guided on the center rail 104 can.

The inner rail 106 is arranged on the middle rail 104 such that in the fully inserted state of the pullout guide 100, the center rail 104 surrounds the inner rail 106 from three sides, namely from above, from below and on the inside of the inner rail 106, wherein the rail back 110 of the Inner rail 106 is disposed facing away from the rail back 110 of the center rail 104.

The center rail 104 is arranged on the outer rail 102 so that in the fully inserted state of the pullout guide 100, the outer rail 102 at least one lying in the extension direction A portion of the center rail 104 from three sides, namely from above, from below and on the Outside of the middle rail 104 surrounds, wherein the rail back 110 of the center rail 104 is disposed facing the rail back 110 of the outer rail 102.

In a pull-out direction A, along which the inner rail 106 and the middle rail 104 are extendable relative to the outer rail 102, the rear portion of the pullout guide 100, a combined intake and damping device 112 is arranged. The intake and damping device 112 comprises a damping device 114 and a self-retraction device 116.

The intake and damping device 112 preferably further comprises a plate formed as a guide plate 118 and is disposed with the same on the inside of the rail back 110 of the outer rail 102, wherein a recess 120 in the lower leg of the outer rail 102 and thus also in the Wälzkörperlaufbahn 108b of the outer rail 102nd may be provided through which the retraction and damping device 112 extends therethrough.

In the embodiment according to the Fig. 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, wherein 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 pullout guide 100 below or above the outer rail 102 may be arranged. However, it may also be an arrangement completely within the outer rail 102, ie between the legs of the outer rail 102 may be provided.

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

The damping device 114 comprises, for example, two internal spaces separated by 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 of the invention, not shown, it can be provided that the housing 122 of the damping device 114 is fixedly connected to the guide plate 118 and the piston rod 124 relative to the housing 122 in the extension direction A or against the extension direction A, that is in the insertion direction E. , is designed to be movable.

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 embodiment, which is formed for example as a web or projection.

The actuating element 126 for actuating the damping device 114 is arranged in particular on the rear end of the housing 122 of the damping device 114 in the extension direction A. Thus, the actuator 126 can move when inserting the pullout guide 100 by means of the inner rail 106 far into a rear in the extension direction A region of the pullout guide 100. The damping device 114 with the actuator 126 occupies only a very small space. The center rail 104 and the inner rail 106 can therefore be made particularly long, which allows a large Auszugsweg and / or a particularly large load of the pullout guide 100.

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

The actuating element 126 for actuating the damping device 114 also has a damper-side latching element 132, which is designed, for example, in the form of a hammer and has a latching part 134. The locking part 134 of the damper-side locking element 132 is biased by the elasticity of the damper-side locking element 132 against a cam 136 or biased and movable in displacement in the extension direction A along the control curve 136 in a direction transverse to the extension direction A.

The control cam 136 has a ramp 137 and two connected by the ramp 137, parallel to the extension direction A and in the assembled state of the pullout guide 100 horizontally oriented portions 139a, 139b, wherein the portion 139a offset to the inner rail side locking element 138 and the section 139b is offset away from the inner rail-side locking element 138 away.

The offset to the inner rail side locking element 138 toward portion 139a of the control cam 136 is disposed in the insertion direction E in front of the inner rail side locking element 138 offset away portion 139b.

The ramp 137 of the control cam 136 is an obliquely extending between the horizontal portions 139 a, 139 b portion of the control curve 136th

The cam 136 is thus designed so that the damper-side locking element 132 is biased in the fully inserted state of the pullout guide 100 by means of the section 139a of the control cam 136 staggered towards the inner rail side locking element 138 to the inner rail-side locking element 138.

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

The inner rail side locking element 138 is resilient in a direction transverse to the extension direction A, so that the inner rail side locking element 138 is also past the damper side locking element 132 in the insertion direction E, when the damper side locking element 132 is in a position in which the damper side Locking element 132 in normal operation of the pullout guide 100 with the inner rail-side locking element 138 is engaged.

In the fully inserted state of the pullout guide 100, the damper-side locking element 132 with the inner rail-side locking element 138 in normal operation of the pullout guide 100 is engaged. The damper-side latching element 132 and the inner rail-side latching element 138 together form a latching device 142, which enables a releasable coupling between the damping device 114 and the inner rail 106.

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

The energy store 144 is guided via a deflection device 148, which is arranged in the vertical direction substantially centrally by means of the guide plate 118 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, for example is arranged at a front in the extension direction A end of the guide plate 118 and / or adjacent to an extension in the direction A front end of the recess 120 in the lower leg of the outer rail 102, first in the insertion direction E and after the deflection by means of the deflection device 148 in Essentially in the extension direction A to the driver 146th

The driver 146 has an example of the outer rail 102 facing guide pin 152 and one of the inner rail facing in Fig. 2 . 4 and 6 shown driving pin 154. 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 extends in the assembled state of the pullout guide 100 at least approximately horizontally, and a latching section 160, which at the front in the extension direction A front end of the guide portion 158 transverse to the same, in the assembled state of the pullout guide 100, for example vertically downwards or vertically upwards.

In particular, when using two identical pullout guides 100 for a pair of pullout guides 100 for receiving and guiding a statement then one of the pullout guides 100 is mounted such that the latching portion 160 protrudes vertically downwards from the guide portion 158, while the other of the pullout guides 100 then is mounted such that the latching portion 160 protrudes vertically upward from the guide portion 158.

By means of the guide pin 152 of the driver 146 in the extension direction A along the guide portion 158 and then guided transversely to the extension direction A along the locking portion 160 is movable.

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

The driver 146 is 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 pullout guide 100 described above functions as follows:

When inserting the pullout guide 100 from the fully extended state ( Fig. 2 and 3 ), the inner rail 106 relative to the outer rail 102 and relative to the center rail 104 to the arranged in the insertion direction E front end of the outer rail 102 retraction and damping device 112 is moved to the front in the direction of insertion E end of the inner rail 106 at the Stop surface 130 of the actuating element 126 engages.

As a result, upon further insertion of the pullout guide 100, the housing 122 of the damping device 114 is displaced in the insertion direction E.

By this displacement of 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 is changed, wherein the movement damping fluid due to the pressure difference, for example, through openings in the piston from one interior to the other interior flows. The flow rate is dictated by the size of the openings in the piston and the viscosity of the motion damping fluid. Due to the friction occurring during the passage of the openings, a conversion of the kinetic energy of the inner rail 106 and the extract arranged thereon into thermal energy takes place. As a result, an insertion movement of the pullout guide 100 is braked.

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

When inserting the inner rail 106 of the driver 146 is actuated by means of the control element 140 in that the driving pin 154 of the driver 146 by means of the inlet portion 162 in the control 140th is received and guided along the control channel 164 in the end portion 166 of the control element 140 ( Fig. 4 and 5 ). Due to the shape of the control channel 164 and the end portion 166 of the control element 140, the catch 146, which is then arranged in the latching position, is unlatched by means of the control element 140 during normal operation during insertion of the pullout guide 100. The guide pin 152 of the driver 146 is guided out of the latching portion 160 of the guide channel 156 and guided into the guide portion 158 of the guide channel 156.

Due to the force exerted by means of the energy storage 144 on the driver 146 in the insertion direction E, both the driver 146 and the means of the driving pin 154 and the control element 140 with the catch 146 latched inner rail 106 from the detent position in the fully inserted Position of pullout guide 100 pulled ( Fig. 1 . 8th and 9 ).

The actuation of the damping device 114 by means of the actuating element 126 is preferably carried out only by moving the inner rail 106. The driver 146 and the actuator 126 preferably do not come into contact with each other here.

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

When the pull-out guide 100 is pulled out of the fully inserted state, the starting state of the damping device 114 is restored by displacing the housing 122 relative to the piston rod 124 in the extension direction A by means of the latching device 142.

The housing 122 of the damping device 114 is extended by pulling the inner rail 106 by means of the latching device 142 from a first position in which the piston rod 124 is pushed into the housing 122 in a second position in which the piston rod 124 from the housing 122 maximum is moved, wherein in the second position, the damper-side locking element 132 with the inner rail-side locking element 138 is disengaged, so that the housing 122 of the damping device 114 remains despite a further extension of the inner rail 106 in the second position.

In detail, the locking device 142 works so that by moving the damper-side locking element 132 of the pullout guide 100 in the extension direction A, the locking member 134 along the control cam 136 and thus initially horizontally along the displaced to the inner rail side locking element 138 portion 139a of the control cam 136 is moved , By further displacement of the damper-side locking element 132 in the extension direction A, the locking part 134 is due to its bias then along the ramp 137 of the cam 136 and thus during movement in the extension direction A also perpendicular to the same in the vertical direction, in particular down or up, moved away from the inner rail-side locking element 138 and thus brought out of engagement with the inner rail-side locking element 138 ( Fig. 2 and 4 ).

The self-retraction device 116 is thereby returned to its initial state when pulling out the drawer guide 100 from the fully inserted state that the driver 146 by means of the driving pin 154, which is located in the end portion 166 of the control element 140, moved by pulling the inner rail 106 along the guide channel 156 becomes. The driver 146 is stopped at the end of the guide portion 158 of the guide channel 156 in its extension direction A and due to the shape of the control element 140 by means of the driving pin 154 along the locking portion 160 of the guide channel 156 in the vertical direction, in particular down or up, moves ,

With this movement of the driver 146 of the fully inserted position into the detent position of the energy storage 144 is loaded simultaneously, that is, the spring tensioned.

Upon insertion and removal of the pullout guide 100, the movement of the dog 146 is substantially independent of the movement of the actuator 126.

One in the Fig. 10 to 13 illustrated second embodiment of an extension guide 100 differs from that in the Fig. 1 to 9 illustrated embodiment essentially in that the Selbsteinzugsvorrichtung 116 is arranged together with the damping device 114 substantially completely within the outer rail 102.

In particular, the Selbsteinzugsvorrichtung 116 and the damping device 114 between two legs 170 of the outer rail 102 are arranged.

The pullout guide 100 according to the Fig. 10 to 13 Further differs in particular by the previously described pullout guide 100 that the control element 140 is pivotally mounted on the inner rail 106.

The control element 140 is arranged, in particular pivotable about a pivot axis 172 on an inner side of the inner rail 106.

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 centrally located between the two legs 170 of the inner rail 106 mounting opening 174 is provided in the inner rail 106. This may be the control 140th be determined for example by means of a pin, a screw, a rivet connection or the like movable.

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

By means of the stop element 176, in particular a freedom of movement of the control element 140 can be restricted. 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, whereby ultimately the range of motion of the control element 140 is predetermined.

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 particular in a direction perpendicular to the extension 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 protrudes beyond a leg 170 of the inner rail 106.

Alternatively or additionally, it can be provided that one or more guide projections 182 in the insertion direction E protrude beyond an end 184 of the inner rail 106 facing the self-closing device 116.

The pullout guide 100 according to the Fig. 10 to 13 preferably includes one or more fins 186.

The one or more guide surfaces 186 serve, in particular, for the installation and / or guidance of 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 opposite ends 190 of the facing away from each other guide projections 182 preferably have a distance from each other, which is substantially equal to the distance of the guide surfaces 186, which form the guide channel 188, or 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 insertion direction E and / or parallel to the extension direction A.

The control element 140 is thus in particular reliably positionable relative to the driver 146.

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

In particular Fig. 13 it can be seen, the control element 140 is disposed in different extension positions of the pullout guide 100 completely outside the guide channel 188.

When inserting the pullout guide 100, it must therefore be ensured that the control element 140 reliably enters the guide channel 188.

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

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

Alternatively or additionally, it may be provided that one or more deflection surfaces 192 on other components of the drawer 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 accommodating an energy accumulator 144 of the self-retraction device 116 serving, 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 may, for example, also have or form a guide surface 186.

Furthermore, the damper mount 196 may preferably have or form a guide surface 186.

In particular, 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, two guide surfaces 186 for forming the guide channel 188 formed.

As in particular the Fig. 12 and 13 can be seen, a leg 170 of the inner rail 106 is formed shortened, so that the self-closing device 116 facing the end 184 of the inner rail 106 is formed asymmetrically. This allows in particular easy accessibility of the control element 140.

The control element 140 can hereby be engaged in particular with the damping device 114 in order to actuate it.

For this purpose, the control element 140 has, in particular, an inner rail-side detent element 138 formed by a guide projection 182, which can be brought into engagement with the detent-side detent element 132.

Regarding the functioning differs in the Fig. 10 to 13 illustrated embodiment of the pullout guide 100 of the in the Fig. 1 to 9 illustrated embodiment, essentially by the pivotal arrangement of the control element 140. The operation of the pullout guide 100 does not change for a user. However, there is an increased reliability in different load conditions, for example, when too heavy loading of a guided by the pullout guide 100 statement, which may result in an undesirable deformation and / or deflection of the inner rail 106.

For example, in the in the Fig. 1 to 9 illustrated embodiment of the pullout guide 100 may result in excessive deformation and / or deflection of the inner rail 106 is a blockade of the self-closing device 116 and / or the damping device 114 when the associated components of the pullout guide 100 wedging or otherwise strike each other.

By the pivotable control element 140 of the drawer guide 100 according to the Fig. 10 to 13 This undesirable effect can at least be reduced or completely eliminated.

In particular, it can be ensured by the deflection surfaces 192 that the control element 140 is pivoted during insertion of the pullout guide 100 in a position which allows the introduction into the guide channel 188.

Within the guide channel 188, guiding the guide projections 182 on the guide surfaces 186 results in reliable and always substantially 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 with the driver 146 is thereby less susceptible to interference.

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

Incidentally, the right in the Fig. 10 to 13 illustrated embodiment of the pullout guide 100 in terms of structure and function with in the Fig. 1 to 9 illustrated embodiment that reference is made to the above description in this respect.

LIST OF REFERENCE NUMBERS

100

pull-out guide

102

outer rail

104

middle rail

106

inner rail

108

rolling body

110

seemed back

112

Retraction and damping device

114

damping device

116

Self-closing device

118

guide plate

120

recess

122

casing

124

piston rod

126

jig

130

stop surface

132

locking element

134

catch part

136

cam

137

ramp

138

locking element

139a

section

139b

section

140

control

142

locking device

143

mainspring

144

energy storage

146

takeaway

148

deflecting

150

fastening device

152

spigot

154

driver pin

156

guide channel

158

guide section

160

detent portion

162

inlet section

164

control channel

166

end

170

leg

172

swivel axis

174

fastening opening

176

stop element

178

stop projection

180

recess

182

guide projection

184

End of the inner rail

186

baffle

188

guide channel

190

End of the lead

192

deflecting

194

spring mount

196

shock mount

198

boundary wall

A

extraction direction

e

insertion direction

Claims (15)

Pull-out guide (100) for guiding an extension which can be pulled out of a carcass in a pull-out direction (A), comprising an outer rail (102) and an inner rail (106) mounted on rolling elements, wherein the pull-out guide (100) has a self-closing device (116) for pulling in the pull-out guide (11). 100) from an at least partially extended state,
wherein the pullout guide (100) comprises a control element (140) arranged on the inner 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 coupled with each other,
characterized,
in that the control element (140) is pivotally fixed to the inner rail (106). Pull-out guide (100) according to claim 1, characterized in that the control element (140) about an at least approximately perpendicular to the extension direction (A) aligned pivot axis (172) is pivotable. Pull-out guide (100) according to one of claims 1 or 2, characterized in that the control element (140) on an inner side of a rail back (110) of the inner rail (106) is pivotally fixed. Pull-out guide (100) according to one of claims 1 to 3, characterized in that the control element (140) one or more Leitvorsprünge (182) which protrude beyond one or two legs (170) of the inner rail (106). An extension guide (100) according to claim 4, characterized in that the control element (140) comprises an inlet section (162), a control channel (164) and an end section (166) for guiding and receiving a driving pin (154) of the driver (146), wherein the inlet portion (162), the control channel (164) and / or the end portion (166) in a direction perpendicular to the extension direction (A) and parallel to a rail back (110) of the outer rail (102) extending between two Leitvorsprüngen (182) of Control (140) are arranged. Pull-out guide (100) according to one of claims 4 or 5, characterized in that the one or more guide projections (182) each have one or more obliquely to the extension direction (A) extending baffles (192), wherein the one or more deflection surfaces ( 192) cause a pivoting movement of the control element (140) upon contact with another component of the drawer guide. Pull-out guide (100) according to one of claims 1 to 6, characterized in that the pull-out guide (100) comprises one or more guide surfaces (186) to which one or more guide projections (182) of the control element (140) for positioning the control element (140 ) relative to the driver (146) can be applied. Pull-out guide (100) according to claim 7, characterized in that the control element (140) comprises two guide projections (182) which protrude in opposite directions over two legs (170) of the inner rail (106), wherein opposite outer ends (190) the Leitvorsprünge (182) in a direction perpendicular to the extension direction (A) and parallel to a rail back (110) of the outer rail (102) extending direction spaced from each other, which at least approximately corresponds to a distance between two guide surfaces (186). An extension guide (100) according to any one of claims 7 or 8, characterized in that one or more guide surfaces (186) by one or more boundary walls (198) of the energy store (144) and / or by one or more boundary walls (198) of a damping device ( 114) of the pullout guide (100) and / or by a guide plate (118) for guiding the driver (146) are formed. Pull-out guide according to one of claims 7 to 9, characterized in that one of the Selbsteinzugsvorrichtung (116) facing the end (184) of the inner rail (106) in a fully inserted and unloaded state of the pullout guide (100) of the guide surfaces (186) has a vertical and / or horizontal distance which is at least about 2 mm, in particular at least about 3 mm. Pull-out guide according to one of claims 1 to 10, characterized in that one of the self-closing device (116) facing the end (184) of the inner rail (106) is free-running and / or not on other components of the pullout guide (100) is supported. Pull-out guide (100) according to one of claims 1 to 11, characterized in that the pull-out guide (100) comprises a guide channel (188), by means of which the control element (140) at least during a retraction movement of the inner rail (106) by means of the Selbsteinzugsvorrichtung (116) in at least approximately constant distance from the rolling body raceways (108) of the outer rail (102) is durable. Pull-out guide (100) according to one of claims 1 to 12, characterized in that the pull-out guide (100) is a stop element (176) for limiting pivotal movement of the control member (140) relative to the inner rail (106). Pull-out guide (100) according to 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 inner rail (106). Pull-out guide (100) according to one of claims 1 to 14, characterized in that a leg (170) of the inner rail (106) on one of the self-closing device (116) facing the end (184) of the inner rail (106) is formed shortened.

Images