EP1761731A1

EP1761731A1 - Linear guide system for a sliding shelf

Info

Publication number: EP1761731A1
Application number: EP05752819A
Authority: EP
Inventors: Friedhelm Petri
Original assignee: Accuride International GmbH
Current assignee: Accuride International GmbH
Priority date: 2004-06-25
Filing date: 2005-06-07
Publication date: 2007-03-14
Anticipated expiration: 2025-06-07
Also published as: US20070261199A1; WO2006000523A1; US7942486B2; EP1761731B1; DE102004030899A1

Abstract

The invention relates to a linear guide system for a sliding shelf in a sliding shelf system, a baking oven or the like having such a sliding shelf comprising a support element and two elongate guides (3) that extend rearwards laterally from the support element, a least one pair of stationary outer rails (9) that are mounted in the horizontal plane of the inside of the base wall, and one slide (10) on every outer rail (9), which is received on the outer rail (9) so as to be displaced along the same, engaging means (11, 14) for engaging the guide (3) of the sliding shelf with the slide (10), locking means (15, 16) for locking the slide (10) against a displacement along the outer rail (9) and adapted to lock the slide (10) in an extended position with respect to the path of travel of the sliding shelf. The aim of the invention is to provide a guide system for a sliding shelf, especially for a support for products to be cooked in a baking oven, which overcomes the known disadvantages of the prior art. The inventive system is characterized in that the locking means (15, 16) for locking the slide (10) against a displacement along the outer rails (9) is designed in such a manner as to lock the slide (10) against such a displacement when the guide (3) of the sliding shelf is disengaged from the slide (10) and as to unlock the slide (10) so as to be displaced along the outer rail (9) when the guide (3) of the sliding shelf is engaged with the slide (10).

Description

Accuride International GmbH

Linear guide system for an extract

The present invention relates to a linear guide system for an extract in a Schubka¬ stensystem, an oven or the like.

The linear guide system according to the invention is suitable for any type of extensions, such as Schubla¬ the computer racks and other bays that are mounted in a cabinet or carcass and retracted and extended. However, the invention is particularly suitable for holding and guiding food supports in ovens. The term "food support", which represent an extract for the purposes of this invention, is understood to mean all inserts which are usually used in ovens, such as baking trays, grates, baking trays, drip pans and holders for such trays, such as e.g. Frame in which such food support can be used or to which they can be placed auf¬.

In the context of this application, the guide system according to the invention for an extract is described primarily for food carriers or similar drawers in an oven. However, it is clear that the present invention is not limited to guide systems for ovens, but in the scope of the appended claims also includes other applications in which ent ent speaking guide systems can be used in a suitable manner, r

Insertion guide systems for food carriers in ovens are known in many forms. In simp chen known ovens the food support is guided in grooves which are formed in different heights or levels in the muffle side wall. The sliding behavior of the food support in such grooves depends on the surface condition of the surfaces sliding on each other and the load of the food support and is comparatively poor. In other systems, instead of the grooves on the muffle side walls, grids are fastened with horizontal bars on which the cooking carriers are guided. Due to the smaller contact surface, the sliding behavior is slightly improved here over grooves. Both systems have the disadvantage that the food support can be pulled out of the oven only to a certain extent, without him down. tilts or front must be supported. In the case of improved ovens, telescopic guides are provided on the muffle side wall or on a grid, each having one stationary and one or more movable rails which are slidably mounted in the longitudinal direction relative to the stationary rail and out of the oven. A food support can be placed on the movable rails, so that it can be pulled out of the oven by pulling out the telescopic guides. that can. Telescopic guides are characterized in that the individual rail elements displaceable relative to each other have substantially the same or at least similar length. In the so-called partial extension, which includes a stationary and a movable rail, the telescopic guide can not be separated from each other due to the existing ball bearings and thus the individual rail elements, extend only to a length which is less than twice the length of the rail in completely retracted state. In the so-called full extension, two or more movable rail elements are displaceably mounted relative to the stationary rail element. A trained as a full extension telescopic guide can be extended to twice the length of the fully inserted state or beyond.

A linear guide system as object of the present invention differs from the telescopic guide system described above in having a long stationary rail member referred to herein as an outer rail and a very short movable rail member referred to herein as a carriage. The carriage can be moved substantially over the full length of the stationary outer rail (minus the length of the carriage). The sliding bearing of the carriage on the stationary outer rail takes place as in be¬ knew telescopic guides via a sliding bearing, a roller or roller bearings or a ball bearing, the latter having the best sliding properties.

DE 101 51 899.4 A1 describes a rail system for food support in an oven with ^■ a food support having on both sides each retaining bracket, which are connected in the front portion of the food support via a substantially U-shaped connecting portion with the food support and in extend substantially parallel to the respective side edges of the food support, and with telescopic rails, each having a fixed to or behind the side wall of the baking oven muffle stationary rail and relative to the stationary rail out of the oven displaceable inner rail, wherein on the inner rail a is provided over the length of the inner rail extending and forming a unit with this receiving tube, which is open in the direction of the oven opening and for receiving the retaining clip by insertion, the headband a hook and the receiving tube a R having in the form of a recess or opening against a Herausglei¬ th of the retaining clip from the receiving tube. This system provides an inexpensive producible structure which allows the food support to be pulled out and up to the oven in a stable, easy sliding manner and without tilting of the food support. The Teieskopschienen are protected in this Sy¬ system as far as possible from contamination of food and splashing or evaporating grease or other liquids. However, the system has the disadvantage that the Gesam¬ te receiving tube, in which the headband is locked, when removing the food support moves out of the oven and protrudes from this. If the food support for removal from the oven is first pulled out with the receiving tube and then removed from this, so remains stand the receiving tube in front of the oven and must be pushed back to close the oven by hand. If the food support is removed for removal from the oven from the Auf¬ nahmetubus while it is retracted, there is a risk that the receiving tube is pulled out due to its ease when pulling out of the holding bracket with out of the oven and then also pushed back after removal of the food support must become. Since a receiving tube is provided in each case on both sides of the food support, there is the further problem that when the food support is inserted, a receiving tube will continue to move out of the oven and another will move in or this will result upon insertion of the food support the food support considerably more difficult.

The object of the present invention was to provide a guide system for an extract, in particular for a food support in an oven, which overcomes the known disadvantages of the prior art.

This object is achieved by a linear guide system for an excerpt in a drawer system, an oven or the like with

an extract comprising a support element and two elongate guides extending laterally from the support element, at least one pair of stationary outer rails mounted horizontally on the inside of a carcass wall, and at each outer rail a carriage extending along the length of the outer rail is movably mounted thereon, engagement means for engaging the guide of the drawer with the carriage, locking means for locking the carriage against a procedure along the outer rail, which is for locking the carriage in a retracted position relative to the travel of the drawer are designed, wherein the locking means for locking the carriage against a method along the outer rail are designed so that they lock the carriage against a method when the guide of the extract is disengaged from the carriage, and the carriage for a Ve Move along the outer rail unlock when the leadership of Aus¬ to the carriage is brought into engagement.

In the context of elongate guides, "rearwardly extending" means that these elongated guides are secured in the front region or anywhere laterally on the support element and extend substantially in the insertion direction, ie towards the rear wall of the body or oven. The ends of the elongated guides, ie the ends opposite the attachment of the guides to the support member, project freely rearwardly. In the area of these rear free ends, the guides are inserted in a carcass or oven with the Schiit- - A -

engaged, so that they are ge on the carriage or attached components securely held ge. The engagement of the leadership of the drawer with the carriage is done so that the extract with the carriage along the length of the outer rail safely into the body or oven hinein- and can be moved out again without being accidentally detached when pulling out of the slide and falling.

A particular advantage of the linear guide system according to the invention over conventional telescopic rail systems is the use of a carriage which is short compared to the long rail elements of a telescopic rail system, consumes less material and is therefore cheaper to produce. In addition, the carriage has the advantage that it remains in the body or oven and is not moved out of this. He therefore can not stand out from the body or oven.

It is particularly advantageous in the linear guide system according to the invention that locking means are provided for locking the carriage against a method along the outer rail, which are designed for locking the carriage in a position extended relative to the travel path of the drawer. This locking of the carriage in the front section of the outer rail against a movement of the carriage takes place when the extract or food support is removed from the carcass or oven, ie when the extract or food support is released from the carriage. The two carriages, which are provided on a plane in the body or for the oven bei¬ supplied building holders of the drawer remain thus locked ßenschiene in the front portion of the Au¬ until again an extract into the cabinet or oven used and the ^'sledge is engaged. Only then the lock is released and the carriage can be moved to insert the extract along the outer rails. This effectively prevents one or both carriages from being displaced or displaced when the drawer is inserted and making insertion of the drawer considerably more difficult.

A further advantage of the system according to the invention is that the engagement means for engaging the guide of the drawer with the slide and the locking means for locking the slide against a method along the outer rail are constructed and matched to one another such that the locking means are for locking of the carriage are always solved when the guides of the drawer with the carriage via the engagement means are ge introduced into engagement, ie when inserting the drawer in the body or oven. Conversely, when the guides of the extension are separated from the carriage, ie the engagement means on the guide and the carriage are released, the carriage is locked against a process along the outer rail. The locking and unlocking of the carriage relative to the outer rail thus takes place automatically when removing or inserting the drawer in the body or oven. An additional locking or unlocking of the carriage, which would require additional handles and for The user would be uncomfortable and in the case of a baking oven possibly dangerous because of the heat, thus eliminating.

Conveniently, the carriage of the linear guide system according to the invention is movably mounted along the outer rail by means of a sliding guide, a roller or roller bearing or a ball bearing, wherein the use of a ball bearing is particularly preferred.

In a preferred embodiment of the linear guide system according to the invention, the elongate guides are formed as rods or tube profiles with a circular or polygonal cross-section and extend rearwardly parallel to the side edges of the carrier element.

In a further particular embodiment of the linear guide system according to the invention, the elongate guides extend beyond the rear boundary of the carrier element to the rear. The farther the elongate guides extend rearwardly beyond the boundary of the carrier element, the further the carrier element of the drawer can be extended to the front of the cage or oven. Alternatively, the elongate guides can extend only to the rear boundary of the support element or even less, but the extract can then not fully extend to the carcass or oven, since the Endab¬ section of the elongated guides in a length which is about the Length of the carriage corresponds to remain in the carcass or oven engaged with the carriage.

The shorter the carriage is designed in relation to the length of the outer rail, the greater the travel of the carriage along the outer rail. It is therefore expedient according to the invention if the length of the carriage is at most 1/3, preferably at most 1/4, particularly preferably at most 1/5 of the length of the outer rail.

For the introduction and engagement of the guide with the carriage, it is advantageous according to the invention if a receptacle is provided on the carriage, which is preferably formed as a tubular profile or U-profile extending in the longitudinal direction of the carriage and attached thereto. If the receptacle is designed as a U-profile, then the free ends of the U-legs facing the carriage and form with this a tube or a tube for the introduction of Füh¬ tion of the extract.

In a further preferred embodiment of the linear guide system according to the invention, the engagement means for engaging the guide of the drawer with the slide comprise a latching recess on the guide and a latching lug or latching tab which is fixedly connected to the slide and can be brought into engagement with the latching recess. The latching recess is expediently a notch arranged in the region of the free end of the guide. For the engagement of the guide with the carriage immerses the locking lug or latching tab, which is in firm connection with the slide, into this latching recess and prevents the drawer from being released from the carriage and falling out, for example, when it is pulled out of the carcass or oven. In particularly preferred embodiments of the linear guidance system according to the invention, the latching lug or latching tab is brought out of the latching recess when the drawer is lifted in the front region and thereby tilted. This embodiment prevents during normal operation, ie when the drawer is moved in or out horizontally into the carcass or oven, that the drawer detaches itself from the carriages. But it also allows a very easy to handle release of the extract from the carriage and removing it from the body or oven, without additional handles for solving any Befestigungsmit¬ tel are required. Thus, an operator can grab an extract with both hands and simply remove it from the body or oven and, if necessary, replace it in another level.

In a further preferred embodiment of the linear guide system according to the invention, the locking means for locking the carriage against a method along the outer rail on the carriage comprise a locking pin and on the stationary outer rail or ei¬ nem in a solidly connected part of a locking recess or bolt hole in wel¬ che the locking pin for locking the carriage against a process along the outer rail dips. As already stated above, these locking means always engage when the guides of the drawer are released from the carriage and the drawer is removed from the carcass or oven. Conveniently, the locking pin in the direction of Rie¬ gelausnehmung or bolt hole is resiliently biased by a spring. Alternatively, the locking means may be configured so that the locking pin undergoes a force in the direction of the locking recess or bolt hole by gravity. Both alternatives ensure that the latch pin securely retracts into the latch recess or latch bore to lock the carriage against a process along the outer rail when the extract is removed from the carcass or oven.

With the knowledge of the invention, the linear guide system defined herein and defined in the appended patent claims and in particular the function and cooperation of the engagement means and locking means according to the invention can be designed constructively in various ways. Those skilled in the art will be able to construct embodiments falling within the scope of the linear guidance system of the present invention without departing from the invention. The scope of protection of this application therefore also encompasses forms of embodiment which are not described here in every detail of the design. Hereinafter, some particularly preferred embodiments of the linear guide system according to the invention are given. Variant 1 In a very particularly preferred embodiment of the linear guide system according to the invention, the locking means for locking the carriage against a method along the outer rail comprise a bolt guide mounted on the carriage and a bolt slidably guided on the bolt guide, from which a locking pin protrudes. Latch guide, latch and locking pin are arranged and designed so that the bolt on the bolt guide slidably between positions is displaceable, in which on the one hand, the locking pin for locking the carriage against a process along the outer rail in a locking recess or bolt hole dips and on the other hand Latch pin is lifted out of the latch recess or latch bore. Appropriately, in this embodiment, the latch on a recess which is designed for engagement with the end portion of the guide. The slidably guided bolt is displaceable on the bolt guide in the vertical direction. The latch pin protrudes downwardly from the latch where a corresponding latch recess or latch hole is provided on the outer rail, a component attached to the outer rail, or a sheet metal secured to the wall. When the drawer is removed, the latch is located vertically in a lower position, and the latch pin is inserted into the latch recess or latch hole, so that the slide is locked against a procedure with respect to the outer rail.

When the drawer is inserted, it is brought into contact with the end section of the guide in a slightly oblique position and engages with it, for example via the aforesaid recess on the latch. When the drawer is then lowered at the front end and thus brought into a horizontal position, press the end portions of the guide, the bolt in a vertical upward direction, wherein the bolt is slidably guided on the bolt guide. In this case, the locking pin is raised and led out of the locking recess or bolt hole, so that the locking of the carriage relative to the outer rail is canceled and the Schlit¬ th can be retracted together with the extract in the body or oven.

The end portions of the guides on the drawer expediently have on the upper side latching recesses. On the carriage or on the receptacle which is fastened to the carriage, a corresponding latching tab is provided, which dips together with the guides in the horizontal position into the latching recesses at the end portions of the guide when tilting the drawer. As a result, the drawer or the end sections of the guides on the drawer are brought into engagement with the slide when the drawer is inserted and secured against being pulled out of the holder or released from the slide.

The slidably guided on the bolt guide bar may conveniently be biased by a spring in the vertical direction downwards, so that the locking pin when removing the zugs sure in the designated locking recess or bolt hole is pressed. In the case of a corresponding embodiment, it may alternatively be sufficient if the bolt experiences a force in the direction of the locking recess or locking bore as a result of the force of gravity.

Variant 2 In a second preferred embodiment of the linear guide system according to the invention, the locking means for locking the carriage against a method along the Au¬ ßenschiene on the carriage or in the receptacle mounted on the carriage spring support and attached to the spring support leaf spring, of which a latch pin extends, on. The free end of the leaf spring, which is opposite the end of the leaf spring fastened to the spring support, points in the extension direction of the carriage.

Appropriately, in the linear guide system of this embodiment, an insertion bevel is further provided on the carriage or in the receptacle for insertion of the guide. The insertion bevel is arranged so that when inserting the guide into the receptacle, the end section of the guide approaches the free end of the leaf spring in such a way that the leaf spring is deformed against its pretension and thereby the locking pin from the locking recess or bolt hole lifts.

The free end portions of the guides of the drawer have a latching recess on its upper side in the vertical direction. For engaging the guide of the drawer with the Schlit¬ th a portion of the insertion bevel is formed and arranged so that it is immersed in an insertion of the guide into the receptacle in the recess on the end portion of the guide.

As in the case of the first embodiment described above, the Aus¬ train when inserted into the body or oven slightly tilted with the end portions of the Füh¬ ments introduced into the recordings on the carriage in this variant. Each end portion of a guide is then guided under the insertion bevel along to the leaf spring arranged in the insertion direction behind the insertion bevel. The free end of the leaf spring is held so far bent by a stop in the receptacle that the free end of the guide is guided under the free end of the leaf spring and pushes it further upwards. A locking pin projecting downwardly from the leaf spring dips into a locking bore on the outer rail or on another stationary part. When inserting the end portions of the guide of the extract and bending up the Blattfe¬ against its bias of the locking pin is lifted out of the bolt hole and thus repealed the lock between the carriage and the outer rail. The insertion depth of the free end of the guide of the drawer is limited by a stop, so that the Rast¬ recess comes to rest at the free end of the guide at the end of the insertion under the portion of the insertion, which should dive into the recess. Once the extract is then brought together with the guides in a horizontal position, this Ab¬ cut the insertion into the recess and brings the leadership of the drawer with the carriage into engagement. The drawer is now secured to the slide, and the slide is unlocked from the outside rail, so that the drawer can be moved into the cabinet or oven. The removal of the extract takes place in the reverse sequence of movements.

Variant 3 In a third embodiment of the linear guide system according to the invention, the locking means for locking the carriage against a method along the outer rail on the carriage or in the receptacle on a locking lever which rotatably mounted on a Hebeiträger ger and resiliently biased by a spring in the locking direction is, wherein the locking lever has a stop surface for the end portion of the guide, which is arranged so an¬ that the end portion of the guide upon insertion into the receptacle under tilting of the locking lever abuts against the spring bias against the stop surface. The locking means further comprise a locking recess or locking bore, which is arranged on the outer rail or another stationary part. The locking lever has a free end which can be brought into engagement with the Rie¬ gelausnehmung or bolt bore against a method of the carriage along the outer rail. If the free end of the locking lever is located above the locking recess or locking bore, the locking lever, if no force is exerted on it by the free end of the guide, is tilted by means of the spring force such that the free end of the locking lever engages in the locking recess or bar bore dips. As a result, the carriage is locked against a process along the outer rail.

For engaging the guide of the drawer with the slide a Kipphebelträger and a rotatably mounted Kipphe¬ bel is expediently provided on the carriage or on the receptacle, wherein the rocker arm at a free end has a latching tab which is designed so that they can be brought by tilting the rocker arm with a recess on the guide into engagement.

Furthermore, an unlocking bevel is expediently provided on the stationary outer rail or a part fixedly connected therewith, which is designed and arranged such that the free end of the rocker arm opposite the latching tab when the carriage is moved to the front travel position, is raised on the Entriegelungsschräge and the Kipphe- is tilted in a direction in which the locking tab on the rocker arm out of engagement with the latching recess on the guide. By moving the free end of the rocker arm onto the unlocking slope and thereby causing the rocker arm to tilt, the guidance of the zugs released, and the extract can be removed from the carriage or the receptacle and removed from the carcass or oven.

When inserting the extract in the body or oven, the guide is inserted into the receptacle on the carriage until it abuts against the stop surface of the locking lever and thereby tilted against its spring bias. During this tilting, the free end of the locking lever is led out of the locking recess or locking bore and the slide is released for a procedure with respect to the outer rail in the direction of insertion. During the first short travel of the carriage in the direction of insertion, the one free end of the tilting lever, which is provided for engaging the guide with the carriage, is led down from the unlocking slope and tilted by means of a spring bias in such a way that the latching tab engages on the latching lug opposite free end of the rocker arm is pressed in the direction of the guide. The free end of the guide has, on the side facing the latching tab, a corresponding latching recess, into which the latching tab then plunges and engages the guide of the pull-out with the slide against unintentional withdrawal. The extract is now secured to the carriage and the carriage relative to the outer rail freely movable, so that the extract can be moved into the body or oven.

The removal of the extract takes place in the reverse sequence of movements, advantageously a start-up stage is provided on the insertion, which can only overcome the free end of the rocker arm when the rocker arm by lifting the extract and exerting a downward force on the arranged at the opposite end latching tab already is slightly tilted vor¬. Otherwise, the free end of the rocker arm would already approach the unlocking bevel when the drawer is completely horizontal and the guide of the drawer is released from the carriage. This would mean that the drawer would already be released from the slide in the extended position during normal horizontal operation and could fall out. This is prevented by the fact that the free end of the rocker arm strikes in the horizontal movement of the extract to the level of Entriegelungsschräge and can not rely on this. Only by the slight lifting of the drawer on the front side of the free end of the rocker arm is raised ben and guided over the step, so that the complete release of the guide by removing the locking tab from the recess on the guide.

Variant 4 In a further embodiment of the linear guide system according to the invention, the locking means for locking the carriage against a method along the outer rail and the engagement means for engaging the guide of the drawer with the carriage on the carriage or in the receptacle, a spring holder with a fixed to the spring holder first leaf spring, which at its free end a Entriegelungsschräge and from the leaf spring comprising extending latch pin, and having a spring mounted on the second leaf spring, which has an extending from the leaf spring between the locking pin and an extending in the opposite direction latching tab for engagement with the Rastaufneh- tion at the end portion of the guide of the statement, on.

When inserting the guide of the drawer in the recording on the carriage, the free end of the guide is guided under and against the Entriegelungsschräge to the first leaf spring. The first Blatt¬ spring is thereby lifted and led out of the leaf spring in the vertical direction downwards locking pin out of a corresponding latch recess or bolt hole. As a result, the carriage is unlocked relative to the outer rail.

The second leaf spring, which is arranged in the vertical direction below the first leaf spring, has an upwardly projecting latching tab which is provided for engagement with a corresponding latching recess on the underside of the free end of the guide. The free end of the guide is suitably bevelled for overrunning and depressing the locking tab against the bias of the second leaf spring. When inserting the guide of the drawer into the receptacle, the free end of the guide passes over the latching tab and pushes it downwards. At the free end of the second leaf spring a downwardly projecting in the vertical direction Zwischenrie¬ gelzapfen is provided which dips when passing the locking tab and depressing the second Blattfe- in a corresponding Zwischenriegelausnehmung or Zwischenriegelbohrung. As soon as the latching recess is arranged on the guide over the latching tab and the latching tab is inserted into the latching recess, the intermediate latching pin is again lifted out of the latching latch recess or intermediate latching bore. This interlock serves to ensure that the carriage is not already released for a procedure against the outer rail before the locking tab with the recess on the guide for securing the extract on the carriage is engaged.

The invention will now be further explained with reference to the following description of preferred Ausführungsva¬ variants (variants 1 to 4) and the associated figures.

FIG. 1 shows in cross-section from above an oven with inventive linear guidance system with extract removed and with retracted extract. Figure 2 shows the outer wall of the oven of Figure 1 with a plurality of linear guide systems arranged thereon according to a first embodiment (variant 1) of the present invention from the side. FIG. 3 shows detailed views of the first embodiment (variant 1) of the linear guidance system according to the invention according to FIG. 2 in different stages when an extension is used. FIG. 4 shows detailed views of a second variant (variant 2) of the linear guide system according to the invention in various stages when inserting an extension. FIG. 5 shows detailed views of a third variant (variant 3) of the linear guidance system according to the invention in various stages when inserting an extension. FIG. 6 shows detailed views of a fourth embodiment (variant 4) of the linear guidance system according to the invention in various stages when an extension is inserted.

Figure 1 shows schematically in cross-section from above a baking oven 4 with a muffle side wall 5, a muffle rear wall 6 and an outer wall 7, wherein the muffle side wall and the outer wall 7 define between them a gap 8, which is also referred to as cold area. The er¬ inventive linear guide system is disposed in the cold area 8, which has the advantage that it is not in contact with the cooking chamber and therefore not contaminated by splashes or vapors of the food and on the other is not exposed to high temperatures, the prevail in the cooking chamber of the oven. Due to this arrangement in the cold region 8 materials can be used for the linear guide system, which would not withstand the high temperatures in the cooking chamber. For example, for the ball bearings between the outer rail and the slide greases can be used, which would decompose at too high temperatures or at least lose their good lubricating properties. The inventive linear guide system is shown only schematically in FIG. 1, wherein the outer rail 9 mounted on the outer wall 7 and the carriage 10 movably mounted therein can be seen.

Furthermore, Figure 1 shows an excerpt 1, consisting of a support element or inner frame 2, which is suitable for example for placing a food support, and guides 3, extending from the front of the support member 2 to beyond the rear side out parallel to the Trä¬ extend element 2. The guides 3 are connected in the front region with the carrier element via a U-shaped connecting piece. The upper view in Figure 1 shows the extract and the oven separately, and in the lower view of Figure 1, the extract is inserted and retracted into the oven or the linear guide system according to the invention.

FIGS. 2 and 3 show a first embodiment variant according to the variant 1 described above of the linear guidance system according to the invention, which is particularly preferred. In Figure 2, the outer wall 7 of a body or oven, as shown in Figure 1, shown. On the outer wall 7, three linear guide systems according to the invention in different travel and locking states are shown one above the other. From the extract, as shown in Figure 1, only the guide 3 is shown in Figure 2. At its free end, the guide 3 on the top a latching recess 1 1 for engaging with the carriage 10 of the linear guide system. The carriage 10 is movably connected via a ball bearing with the outer rail 9. The mitt¬ lere representation in Figure 2 shows the state when inserting the guide in the Linearführungssy- system, and the lower view in Figure 2 shows the guide 3 and the linear guide system with retracted extract.

FIG. 3 shows one above the other three different states of the linear guide system according to the invention of inserting the guide 3 of an extension, with a schematic side view of the carriage 10 and the outer rail 9 on the left and a corresponding view from the front on the right.

The linear guide system of the first embodiment comprises an outer rail 9, a carriage 10 and an attached to the carriage 10 receptacle 13, which is executed in this Ausführungsva¬ variant as a U-profile, in which the respective free ends of the U-legs at the back of the Are mounted carriage and thus form a tube for introducing the guide 3. The guide 3 has on its upper side in the vicinity of the free end a latching recess 11. The receptacle 13 has a correspondingly bent latching lug 14 for the engagement of the guide 3 of the drawer with the carriage 10. In the upper illustration in Figure 3, the locking tab 14 is immersed in the recess 11, so that the guide 3 is secured against being pulled out of the receptacle 13. The linear guide system of this first embodiment variant has locking means for locking the carriage 10 against a method along the outer rail 9. These locking means comprise a latch 17 which is slidably mounted in the vertical direction on a latch guide 18 fixed to the carriage 10. By means of a spring 19, the latch 17 is biased downward in the vertical direction. At the bottom, the latch 17 has a locking pin 16. For the locking, a corresponding locking recess or locking bore 15 is provided on a stationary plate into which the locking pin can retract for locking the slide 10 relative to the outer rail 9, as shown in the middle and lower representation in FIG. The latch 17 is provided on the left side in FIG. 3 with a recess into which the free end of the guide 3 can retract and engage with the latch 17.

The upper illustration in FIG. 3 shows the state of the linear guide system in which the guide 3 engages with the carriage 10 and the locking pin 16 is lifted out of the locking recess or locking bore 15, so that the carriage together with the extension along the outer rail 9 can be moved and the guide 3 is secured to the carriage 10 against pulling out of the receptacle 13 at the same time. Due to the engagement of the free end of the guide 3 with the latch 17, the latch 17 is held up against the bias of the spring 19, so that the latch pin 16 does not retract into the latch bore 15 or during the process of FIG Carriage 10 along the outer rail 9 not on the stationary plate in which the Riegelboh¬ tion 15 is provided, can grind.

The middle view in Figure 3 shows the process of locking the carriage 10 relative to the outer rail 9 and the disengagement of the guide 3 with the carriage 10. For this purpose, the guide 3 is slightly tilted by lifting the drawer at the front end, the latch 17 vertically downwards is guided and the locking pin 16 moves into the designated locking recess or bolt hole 15. At the same time, the latching lug 14 is brought out of engagement with the latching recess 11 at the free end of the guide 3. As shown in Figure 3 below, the guide can now be pulled out of the receptacle 13, and the carriage 10 is locked by the engagement of the locking pin 16 in the locking recess or bolt bore 15 against a Ver¬ drive along the outer rail 9. This prevents the carriage from being disregarded, such as e.g. when re-inserting the statement, is moved to the rear and Ein¬ set the statement difficult.

FIG. 4 shows in the various stages, as also shown in FIG. 3, a second embodiment variant according to the variant 2 of the inventive linear guidance system described above, in which the locking means for locking the slide 10 against a method along the Outer rail 9 a spring support 22 with an attached leaf spring 23 include. On the leaf spring 23, a downwardly extending locking pin 25 is provided which locks the carriage against a process when it dips into the corresponding locking recess or locking bore 24 in a stationary plate. The illustration in Figure 4 above shows the state in which the guide 3 with the carriage 10 against accidental removal in Ein¬ handle and the carriage 10 is unlocked relative to the outer rail 9 for a process. The free end of the guide 3 has on the upper side a latching recess 11. An insertion bevel 20 for insertion of the guide 3 is provided on the carriage 10. One edge of the insertion bevel 20 is formed and arranged to engage with the detent recess 11 at the free end of the guide 3 for securing the guide 3 to the carriage 10, as shown in Figure 4 above. The free end of the leaf spring 23 is located on a stop 21 when the guide 3 is not inserted. When introducing the guide 3, this is guided along the insertion bevel 20 under the free end of the leaf spring 23 and pushes the free end of the leaf spring 23 against the spring bias upwards. In this case, the locking pin 25 is lifted out of the locking recess or locking bore 24 and the slide 10 is released for a method relative to the outer rail 9.

To remove the extract from the body or oven, the guide 3 is slightly tilted by lifting the drawer at the front and pulled back, as shown in the middle Dar¬ position of Figure 4. The leaf spring 23 follows its bias and lowers down to the Stop 21 from, wherein the locking pin 25 ein¬ moves into the locking recess or bolt bore 24 and the carriage 10 is locked against displacement along the outer rail 9. The insertion of the separation takes place in the reverse order, that is to say in accordance with the illustrations in FIG. 4 from bottom to top.

FIG. 5 shows a third embodiment variant according to variant 3 of the linear guidance system according to the invention described above, wherein the locking means for locking the carriage 10 against a method along the outer rail 9 comprise a locking lever 30 rotatably mounted on a lever carrier 36, which by means of a spring (not shown) is biased. The locking lever 30 has in the extension direction a stop against which the guide 3 presses when inserting the drawer and the locking lever 30 is tilted against its Federvor¬ voltage. The opposite free end of the locking lever 30 is designed so that it can retract for locking the carriage 10 against a process along the outer rail 9 in a corresponding locking recess or locking bore 38 on a stationary plate.

As in the case of the first embodiment variant according to FIGS. 2 and 3, this variant also has a U-shaped profile which, together with the rear side of the carriage 10, forms the receptacle 13. At the bottom of the receptacle 13, a rocker arm 33 is rotatably supported on a Kipphebelträger 34. The one free end of the rocker arm forms a latching tab 32, which can be brought into engagement with a corresponding latching recess 11 at the free end of the guide 3. The rocker arm 33 is biased by a spring 39 in such a manner that the locking tab 32 is pushed up into the recess 11 on the guide 3. An unlocking bevel 35 is further provided on the stationary plate, onto which the free end of the tilting lever 33 opposite the latching tab 32 ascends, when the carriage is fed in the direction of extension to the end of the outer rail. When driving the free end of the rocker arm 33 on the Entriegelungs¬ obliquely 35 of the rocker arm 33 is tilted and the locking tab 32 led out of the recess 11 on the guide 3. In this case, the guide 3 is brought out of engagement with the carriage 10 and can be pulled out of the receptacle 13. The Entriegelungsschräge 35 is provided with a step over which the free end of the rocker arm 33 must be lifted over before it can continue on the Entriegelungsschräge 35. The lifting of the free end of the Kipphe¬ lever 33 is carried out by tilting the guide 3 by lifting the extract in the front area, the free end of the guide 3 presses on the locking tab 32, the rocker arm 33 tilted against the bias by the spring 39 and raises the opposite free end for overcoming the step on the Entriegelungsschräge 35.

When pulling out the guide 3 from the receptacle 13, as shown in the middle and lower Dar¬ position of Figure 5, the locking lever 30 is in the direction of its Federvorspan tilted tion, moves with its free end in the locking recess or bolt bore 38 and secures the carriage 10 against a method along the outer rail. 9

FIG. 6 shows a fourth embodiment according to variant 4 described above of the linear guide system according to the invention, in which the locking means comprise first and second leaf springs 40 and 48 secured to a spring holder 47. The first leaf spring 40 has a locking pin 41 protruding downwards in the vertical direction, which can be inserted into a corresponding locking recess or locking hole 42 for locking the carriage against a method along the outer rail 9. The first leaf spring 40 furthermore has at its free end an unlocking bevel 46, against which the free end of the guide 3 abuts when inserted, raises the first leaf spring 40 against its spring preload and thereby locks the latch pin 41 from the latch recess or latch bore 42 out leads. The second leaf spring 48 is arranged in the vertical direction below the first leaf spring 40 and has an upwardly projecting latching tab 45, which can be brought into engagement with a corresponding latching recess 11 on the underside of the guide 3 for securing the guide to the carriage.

At its free end, the second leaf spring 48 also has an intermediate locking pin 43 which, when the second leaf spring 48 is pressed down, enters a corresponding intermediate bolt bore 44, as shown in the middle illustration of FIG. The free end of the guide 3 has a slope which is guided when inserting the guide 3 via the locking pin 41 of the second leaf spring 48 and this presses it down. In this case, as soon as an intermediate locking takes place by retracting the intermediate latch pin 43 in the intermediate locking hole 44, to avoid that the carriage can move is already out of its position in this insertion. ^"10, the locking tab 45 to the second leaf spring 48 into the locking recess 11 on the guide 3, the intermediate latching pin 43 is again lifted out of the intermediate latching bore 44. The guide 3 is then engaged and secured with the slide 10 via the latching tab 45 and the latching recess 11, and the slide can be moved along with the drawer along the outside rail 9 are moved.

When guiding out the guide 3 from the receptacle 13, the free end of the guide 3 is led away from the unlocking bevel 46 of the first leaf spring 40, so that the leaf spring 40 give way to its initial tension and push the locking pin 41 downwards into the locking recess or locking bore 42 can, as shown in Figure 6 below. In this position, the carriage 10 is locked against a method along the outer rail 9. Bθzugszeichenliste

1 Excerpt 2 Carrier element or inner frame 3 Guide 4 Carcass or oven 5 Carcass side wall or muffle side wall 6 Carcass rear wall or muffle rear wall 7 Outer wall 8 Gap or cold area 9 Outer rail (stationary)

10 carriages (movable) 11 latching recess 12 ball bearings 13 receptacle 14 latching tab 15 latch recess or latch bore 16 latch pin 17 latch 18 latch guide 19 spring

20 insertion bevel 21 stop 22 spring support 23 leaf spring 24 locking recess or locking bore 25 locking pin

30 locking lever 32 latching tab 33 rocker arm 34 rocker arm carrier 35 Entriegelungsschräge 36 lever carrier 38 latch recess or bolt hole 39 spring

40 first leaf spring 41 locking pin 42 locking recess or locking hole 43 intermediate locking pin 44 between locking bore 45 locking tab 46 Entriegelungsschräge 47 spring holder 48 second leaf spring

Claims

1. Linear guide system for a drawer (1) in a drawer system, an oven or the like with - an excerpt (1) comprising a support member (2) and two laterally of the support element (2) rearwardly extending, elongate guides (3) - at least one pair of stationary outer rails (9) mounted horizontally on the inside of a body wall (7), and on each outer rail (9) a carriage (10) movable along the length of the outer rail (9) this is mounted, - engaging means (11, 14, 20, 32, 45) for engaging the guide (3) of the drawer (1) with the carriage (10), - locking means (15, 16, 24, 25, 30, 38 , 41, 42) for locking the carriage (10) against a process along the outer rail (9), which are designed for locking the carriage (10) in a position extended with respect to the travel of the drawer (1), the locking means (15, 16, 24, 25, 3 0, 38, 41, 42) for locking the carriage (10) against a process along the outer rail (9) are designed so that they lock the carriage (10) against a process when the guide (3) of the extract (1 ) is disengaged from the carriage (10) and unlocking the carriage (10) for a process along the outer rail (9) when the guide (3) of the drawer (1) engages the carriage (10) is brought.

2. Linear guide system according to claim 1, characterized in that the carriage (10) by means of a sliding guide, a roller or roller bearing or a ball bearing (12) along the outer rail (9) is movably mounted.

3. Linear guide system according to one of the preceding claims, characterized gekennzeich¬ net, that the elongate guides (3) are formed as rods or tubular profiles with a circular or polygonal cross-section, which extend parallel to the side edges of the support element (2) to the rear.

4. Linear guide system according to one of the preceding claims, characterized gekennzeich¬ net, that extend the elongated guides (3) beyond the rear boundary of the Trägerelemen¬ tes (3) also to the rear.

5. Linear guide system according to one of the preceding claims, characterized gekennzeich¬ net, that the length of the carriage (10) is at most 1/3, preferably at most 1/4, more preferably at most 1/5 of the length of the outer rail (9).

6. Linear guide system according to one of the preceding claims, characterized gekennzeich¬ net, in that on the carriage (10) has a receptacle (13), preferably as a in Längs¬ direction of the carriage (10) extending and fixed to this tube profile or U- Profile is designed for the insertion and engagement of the guide (3) with the carriage (10) is provided.

7. Linear guide system according to one of the preceding claims, characterized gekennzeich¬ net, that the engagement means (11, 14, 20, 32, 45) for engaging the guide (3) of the drawer (1) with the carriage (10) has a latching recess (11 ) on the guide (3) and one with the carriage (10) in a fixed connection and with the latching recess (11) engageable latching nose or latching tab (14, 20, 32, 45).

8. Linear guide system according to one of the preceding claims, characterized in that the locking means (15, 16, 24, 25, 30, 38, 41, 42) for locking the Schlit¬ least (10) against a process along the outer rail ( 9) on the carriage (10) has a locking pin (16, 25, 41) and a locking recess or locking bore (15, 24, 38, 42) on the stationary outer rail (9) or a part in contact therewith which the latch pin (16, 25, 41) for locking the carriage (10) against a process along the outer rail (9) dips include.

9. Linear guide system according to claim 8, characterized in that the locking pin (16, 25, 41) in the direction of the latch recess or locking bore (15, 24, 38, 42) by means of a spring (19, 23, 37, 40) is resiliently biased or by gravity, a force in the direction of the latch recess or bolt bore (15, 24, 38, 42) experiences.

10. Linear guide system according to one of claims 1 to 9, characterized in that the locking means for locking the carriage (10) against a method along the Au¬ ßenschiene (9) mounted on the carriage (10) bolt guide (18) and an the bolt guide (18) slidably guided bolt (17) from which a locking pin (16) her¬ protruding, with bolt guide (18), bolt (17) and locking pin (16) are arranged and designed so that the bolt ( 17) on the bolt guide (18) slidable between positions, in which on the one hand the locking pin (16) for locking the carriage (10) against a process along the outer rail (9) in a locking recess or bolt hole (15) is immersed and on the other hand the latch pin (16) is lifted out of the latch recess or latch bore (15).

11. Linear guide system according to claim 10, characterized in that the latch (17) has a recess which is designed for engagement with the end portion of the guide (3).

12. Linear guide system according to one of claims 1 to 9, characterized in that the locking means for locking the carriage (10) against a method along the Au¬ ßenschiene (9) on the carriage (10) or in the receptacle (13) a a spring support (22) mounted on the carriage (10) and a leaf spring (23) secured to the spring support (22), from which a locking pin (25) extends, the free end of the leaf spring (23) the end of the leaf spring (23) fastened to the spring support (22) rests opposite in the extension direction of the carriage (10).

13. Linear guide system according to claim 12, characterized in that on the carriage (10) or in the receptacle (13) further comprises an insertion bevel (20) for introducing the guide (3) is provided, wherein the insertion bevel is arranged so that when inserting the guide (3) into the receptacle (13), it brings the end section of the guide (3) to the free end of the leaf spring (23) in such a way that the leaf spring (23) counteracts its preload is deformed and thereby raises the locking pin (25) from the locking recess or bolt hole (25).

14. Linear guide system according to claim 13, characterized in that a portion of the insertion bevel (20) is formed and arranged so that it upon insertion of the Füh¬ tion (3) in the receptacle (13) in the recess (11) on the the end portion of the guide (3) for engaging the guide (3) of the drawer (1) with the carriage (10) is immersed.

15. Linear guide system according to one of claims 1 to 9, characterized in that the locking means for locking the carriage (10) against a method along the Au¬ ßenschiene (9) on the carriage (10) or in the receptacle (13) a Locking lever (30) which is rotatably mounted on a lever carrier (36) and resiliently biased by a spring (37) in the locking direction, wherein the locking lever (30) ei¬ ne stop surface for the end portion of the guide (3), the so is arranged so that the end portion of the guide (3) upon insertion into the receptacle (13) under tilting of the locking lever (30) against the spring bias against the stop surface abuts.

16. Linear guide system according to claim 15, characterized in that the Verriegelungs¬ medium further comprise a locking recess or bolt bore (38) and the Verrie¬ gelungshebel has a free end against a method of the carriage (10) along the outer rail (9) can be brought into engagement with the locking recess or locking bore (38).

17. Linear guide system according to claim 15 or 16, characterized in that it further comprises on the carriage (10) or on the receptacle (13) a Kipphebelträger (34) and a rotatably mounted thereon rocker arm (33), wherein the rocker arm at a free end a latching tab (32) which is designed so that it by tilting the Kipphe¬ lever (33) with a latching recess (11) on the guide (3) for engaging the Füh¬ tion (3) of the extract (1) engageable with the carriage (10).

18. Linear guide system according to claim 17, characterized in that further on the stationary outer rail (9) or a stationary connection therewith a Entriegelungsschräge (35) is provided, which is designed and arranged so that the latching tab (32) opposite free end of the rocker arm (33), when the carriage (10) is moved to the front travel position, on the Entriegelungsschräge (35) ascends and the rocker arm (33) is tilted in a direction in which the locking tab (32) at the tilt ¬ lever (33) out of engagement with the latching recess (11) on the guide (3).

19. Linear guide system according to one of claims 1 to 9, characterized in that the locking means for locking the carriage (10) against a method along the Au¬ ßenschiene (9) and the engagement means for engaging the guide (3) of the extract (1). with the carriage (10) on the carriage (10) or in the receptacle (13) a spring holder (47) having a spring holder (47) attached to the first leaf spring (40), which at its free end a Entriegelungsschräge (46 ) and a latching pin (41) extending from the leaf spring, and having a second leaf spring (48) attached to the spring holder (47), which has a latching pin (43) extending from the leaf spring and an opposite one Direction extending latching tab (45) for engagement with the latching recess (11) at the end portion of the guide (3) of the drawer (1).