EP1761731B1 - Linear guide system for a sliding shelf - Google Patents

Description

The present invention relates to a linear guide system for a drawer in a drawer system, an oven or the like.

The linear guide system according to the invention is suitable for any type of extracts, such as drawers, computer racks and other bays, which 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 in the sense of this invention is an extract, is understood as meaning all inserts which are commonly used in ovens, such as baking trays, grates, baking trays, drip pans and holders for such trays, e.g. Frame in which such food support can be used or to which they can be placed.

In the context of this application, the guide system according to the invention is described for an extract primarily for food supports or similar inserts in an oven. It will be understood, however, that the present invention is not limited to guide systems for ovens, but in the scope of the appended claims also encompasses other applications in which corresponding guide systems can be suitably used.

Insertion guide systems for food carriers in ovens are known in many forms. In simple 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 texture of the surfaces sliding on each other and the load of the food support and is relatively poor. In other systems, instead of the grooves on the muffle side walls, grids are fastened with horizontal bars on which the food supports are guided. Due to the smaller contact surface, the sliding behavior is slightly improved compared to grooves. Both systems have the disadvantage that the food support can only be pulled out of the oven to a certain extent, without having to tilt down or front must be supported. In improved ovens, telescopic guides are provided on the muffle side wall or on a grid, each having a stationary and one or more movable rails which are slidably mounted longitudinally relative to the stationary rail and out of the oven. A food support is placed on the movable rails, so that it can be pulled out by pulling the telescopic guides out of the oven can. Telescopic guides are characterized in that the individual mutually displaceably mounted rail elements 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 the fully retracted Status. When so-called full extension two or more movable rail elements relative to the stationary rail element are slidably mounted. 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 is substantially over the full length of the stationary outer rail (minus the length of the carriage) movable. The sliding bearing of the carriage on the stationary outer rail is carried out as in known telescopic guides via a plain bearing, a roller or roller bearings or a ball bearing, the latter having the best sliding properties.

The 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 substantially parallel to the respective side edges of the Food support extend, and with telescopic rails, each having a fixed to or behind the side wall of the oven muffle stationary rail and relative to the stationary rail out of the oven displaceable inner rail, wherein on the inner rail extending substantially over the length of the inner rail and is provided with this unit forming a receiving tube, which is open in the direction of the oven opening and formed for receiving the retaining clip by insertion, wherein the headband a hook and the receiving tube a detent in the form of a recess or opening against sliding out of the retaining clip from the receiving tube. This system offers a reasonably priced structure, which allows the food carrier to be pulled out and up to the oven in a stable, easy sliding manner and without tilting the food carrier. The telescopic rails are protected in this system as far as possible from contamination of food and splashing or vaporizing grease or other liquids. However, the system has the disadvantage that the entire 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 receiving tube while it is retracted, there is a risk that the receiving tube is pulled out of the oven due to its ease when pulling out the retaining clip and then also has to be inserted again after removal of the food support. Since a receiving tube is provided on both sides of the food support, there is the further problem that when inserting the food support a receiving tube further out of the oven and another is driven further or this results when inserting the food support, which is the onset of Gargutträgers considerably more difficult.

This in EP-A-0998 865 disclosed linear guide system represents the closest prior art.

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.

• einem Auszug, der ein Trägerelement und zwei sich seitlich des Trägerelementes nach hinten erstreckende, längliche Führungen umfaßt,
• wenigstens einem Paar stationärer Außenschienen, die in horizontaler Erstreckung auf der Innenseite einer Korpuswand montiert sind, und an jeder Außenschiene einem Schlitten, der entlang der Länge der Außenschiene verfahrbar an dieser gelagert ist,
• Eingriffsmitteln zum Ineingriffbringen der Führung des Auszuges mit dem Schlitten,
• Verriegelungsmitteln zum Verriegeln des Schlittens gegen ein Verfahren entlang der Außenschiene, welche für ein Verriegeln des Schlittens in einer bezüglich des Verfahrweges des Auszuges ausgezogenen Stellung ausgelegt sind,
• wobei die Verriegelungsmittel zum Verriegeln des Schlittens gegen ein Verfahren entlang der Außenschiene so ausgelegt sind, daß sie den Schlitten gegen ein Verfahren verriegeln, wenn die Führung des Auszuges mit dem Schlitten außer Eingriff gebracht wird, und den Schlitten für ein Verfahren entlang der Außenschiene entriegeln, wenn die Führung des Auszuges mit dem Schlitten in Eingriff gebracht wird.

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 rearwardly of the support element,
• at least one pair of stationary outer rails mounted horizontally on the inside of a body wall, and on each outer rail a carriage movably supported along the length of the outer rail thereon,
• Engaging means for engaging the guide of the drawer with the carriage,
• Locking means for locking the carriage against a method along the outer rail, which are designed for locking the carriage in a retracted with respect to the travel of the extract position,
• wherein the locking means for locking the carriage against a process along the outer rail are adapted to lock the carriage against a process when the guide of the drawer is disengaged from the carriage and unlock the carriage for a process along the outer rail, when the guide of the drawer is brought into engagement with the slide.

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 are the guides when inserting into a carcass or oven with the carriage engaged so that they are securely supported on the carriage or attached components. 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 therefore is cheaper to manufacture. 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 solid with respect to the travel path of the extract position. This locking of the carriage in the front portion of the outer rail against a method of carriage takes place when removing the extract or food support from the body or oven, i. when you detach the extract or food support from the carriage. The two carriages, which are provided on one level in the body or oven for the mutual holders of the drawer, thus remain locked in the front portion of the outer rail until an extract is again inserted into the carcass or oven and engaged with the carriages. Only then the lock is released and the carriage can be moved to insert the extract along the outer rails. As a result, it is effectively prevented that one or both slides are moved or dodge at the onset of the extract and the insertion of the extract is considerably more difficult.

Another advantage of the system according to the invention is that the engagement means for engaging the guide of the drawer with the carriage and the locking means for locking the carriage against a method along the outer rail are constructed and matched so that the locking means for locking the carriage always be solved when the guides of the drawer are brought into engagement with the carriage via the engagement means, ie when inserting the drawer in the body or oven. Conversely, the slide is locked against a process along the outer rail when the guides of the drawer are separated from the slide, ie the engagement means on the guide and the slide are released. 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 possibly dangerous in the case of a baking oven due to the heat.

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 elongated guides extend beyond the boundary of the carrier element to the rear, the further the carrier element of the drawer can extend to the front of the carcass or oven. Alternatively, the elongated guides can extend only to the rearward boundary of the support member or even less, but the drawer can not then fully extend to the carcass or oven since the end portion of the elongate guides is approximately the length of the length of the support Schlittens corresponds, remains in the body or oven in engagement 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 inventively advantageous if a receptacle is provided on the carriage, which is preferably designed as a in the longitudinal direction of the carriage extending and fixed thereto pipe profile or U-profile. 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 insertion of the guide on the pullout.

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 guide system according to the invention, the latching lug or latching tab is led out of the latching recess when the drawer is lifted in the front region and thereby tilted. This embodiment prevents in normal operation, ie when the extract is moved horizontally in the body or oven or moved out that the extract from the carriage dissolves. But it also allows a very easy-to-handle release of the extract from the carriage and removal from the body or oven, without additional handles to solve any fasteners are required. Thus, an operator can grab an extract with both hands and simply remove it from the carcass or oven and, if necessary, put it back in another plane.

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 a locking pin and on the stationary outer rail or a solidly connected part comprising a locking or bolt hole, in which the locking pin for a Locking the carriage is immersed against a process along the outer rail. 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. Appropriately, the locking pin is resiliently biased in the direction of the locking recess or locking bore by means of 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 knowledge of the invention, the linear guide system described herein and defined in the appended claims, and in particular the function and cooperation of the engagement means and locking means according to the invention can be made constructive in various ways. Those skilled in the art will be able to construct embodiments falling within the scope of the linear guide system of the present invention without departing from the invention. The scope of this application therefore also encompasses those embodiments which are not described herein in every detail of the design. Hereinafter, some particularly preferred embodiments of the linear guide system according to the invention are given.

version 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 on a slide-mounted bolt guide and a slidably guided on the bolt guide latch, from which a locking pin protrudes on. Latch guide, latch and latch pins 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, the locking pin the latch recess or latch bore is lifted out. 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. With the drawer removed, the latch is vertically in a down position, and the latch pin is inserted into the latch recess or latch hole, so that the carriage is locked against a procedure with respect to the outer rail.

When inserting the statement this is brought to the end portion of the guide in a slightly oblique position on the bolt and enters this example, via the aforementioned recess on the bolt into engagement. 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 latch recess or bolt hole, so that the locking of the carriage relative to the outer rail is released and the carriage 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 dive when tilting the extract together with the guides in the horizontal position in the recesses on the end portions of the guide. Thereby, the extract or the end portions of the guides are brought to the extract when inserting the extract with the carriage engaged and secured against withdrawal from the receptacle or a release of the carriage.

The slidably guided on the bolt guide bar may conveniently be biased downward by a spring in the vertical direction, so that the locking pin when removing the extract safely pressed into the designated bolt recess or bolt hole. 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 outer rail on the carriage or in the receptacle have a spring support mounted on the carriage and a leaf spring attached to the spring support, from which extends a locking pin, on. The free end of the leaf spring, which is opposite to the fixed to the spring support end of the leaf spring, has 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 it introduces the end portion of the guide in the manner of introducing the guide into the receptacle in the manner of the free end of the leaf spring, that the leaf spring is deformed against its bias, thereby lifting the locking pin from the locking recess or bolt hole.

The free end portions of the guides of the drawer have a latching recess on its upper side in the vertical direction. In order to engage the guide of the drawer with the slide, 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 first embodiment described above, also in this variant of the extract is slightly tilted when inserted into the body or oven with the end portions of the guides inserted into the receptacles on the carriage. 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 leaf spring 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 depth of insertion of the free end of the guide of the drawer is limited by a stop, so that the locking 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 portion of the insertion dipped into the recess and brings the guide of the drawer with the carriage in engagement. The drawer is now secured to the slide, and the slide is unlocked from the outer rail so that the drawer can be moved into the carcass 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 is rotatably mounted on a lever carrier and resiliently biased by a spring in the locking direction, wherein the Locking lever has a stop surface for the end portion of the guide, which is arranged so that the end portion of the guide upon insertion into the receptacle while tilting the locking lever abuts against the spring bias against the stop surface. The locking means further comprise a latch recess or latch bore disposed on the outer rail or other stationary part. The locking lever has a free end which is engageable with the latch recess or latch bore against a movement 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 locking 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 rocker arm 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 it by tilting of the rocker arm can be brought into engagement with a latching recess on the guide.

Furthermore, a Entriegelungsschräge is expediently provided on the stationary outer rail or a part fixedly connected therewith, which is designed and arranged so that the latching tab opposite free end of the rocker arm, when the carriage is moved to the front travel position, auffährt on the Entriegelungsschräge and the rocker arm is tilted in a direction in which the latching tab on the rocker arm is disengaged from the latching recess on the guide. By driving the free end of the rocker arm on the Entriegelungsschräge and thereby caused tilting of the rocker arm is the leadership of the drawer released, and the extract can be removed from the carriage or the receptacle and removed from the body 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 insertion direction, the one free end of the rocker arm, which is provided for engaging the guide with the carriage, led down from the Entriegelungsschräge and tilted by a spring bias in such a way that the locking tab at the opposite free end of the Rocker lever is pressed in the direction of the guide. The free end of the guide has on the latching tab side facing a corresponding recess, in which the locking tab then dips and brings the leadership of the drawer with the carriage against accidental withdrawal in engagement. 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 easily tipped over. Otherwise, the free end of the rocker arm would already drive in completely horizontal method of the statement on the Entriegelungsschräge and solve the leadership of the drawer from the carriage. This would mean that the extract would already be released from the carriage during normal horizontal operation in the extended position 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 at the front of the free end of the rocker arm is raised 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 first leaf spring attached to the spring holder , Which at its free end a Entriegelungsschräge and a 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 inter-locking pin and an oppositely extending latching tab for engagement with the Rastaufnehmung at the end portion of the guide of the drawer 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 leaf spring is thereby lifted and led out of the leaf spring in the vertical direction downwardly locking bolt from 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 in the vertical direction downwardly projecting intermediate locking pin is provided, which dips when driving over the locking tab and depressing the second leaf spring 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 dips into the latching recess, the intermediate latching pin is lifted out of the intermediate latching recess or intermediate latching bore again. 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.

Figur 1

zeigt im Querschnitt von oben einen Backofen mit erfindungsgemäßem Linearführungssystem mit entnommenem Auszug und mit eingefahrenem Auszug.

Figur 2

zeigt die Außenwand des Backofens aus Figur 1 mit mehreren daran angeordneten Linearführungssystemen gemäß einer ersten Ausführungsvariante (Variante 1) der vorliegenden Erfindung von der Seite.

Figur 3

zeigt Detailansichten der ersten Ausführungsvariante (Variante 1) des erfindungsgemäßen Linearführungssystems gemäß Figur 2 in verschiedenen Stufen beim Einsetzen eines Auszugs.

Figur 4

zeigt Detailansichten einer zweiten Ausführungsvariante (Variante 2) des erfindungsgemäßen Linearführungssystems in verschiedenen Stufen beim Einsetzen eines Auszugs.

Figur 5

zeigt Detailansichten einer dritten Ausführungsvariante (Variante 3) des erfindungsgemäßen Linearführungssystems in verschiedenen Stufen beim Einsetzen eines Auszugs.

Figur 6

zeigt Detailansichten einer vierten Ausführungsvariante (Variante 4) des erfindungsgemäßen Linearführungssystems in verschiedenen Stufen beim Einsetzen eines Auszugs.

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

FIG. 1

shows in cross section from above an oven with inventive linear guide system with extracted extract and retracted extract.

FIG. 2

shows the outside wall of the oven FIG. 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 guide system according to the invention according to FIG. 2 in different stages when inserting an extract.

FIG. 4

shows detailed views of a second embodiment (variant 2) of the linear guide system according to the invention in different stages when inserting an extract.

FIG. 5

shows detailed views of a third embodiment (variant 3) of the linear guide system according to the invention in different stages when inserting an extract.

FIG. 6

shows detailed views of a fourth embodiment (variant 4) of the linear guide system according to the invention in different stages when inserting an extract.

FIG. 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 between them define a gap 8, which is also referred to as cold area. The linear guide system according to the invention is arranged in the cold region 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 hand is not exposed to the high temperatures in the Cooking chamber of the oven prevail. 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, can be used for the ball bearings between the outer rail and the carriage greases that decompose at too high temperatures or at least lose their good lubricating properties. The linear guide system according to the invention is in FIG. 1 shown only schematically, with the mounted on the outer wall 7 outer rail 9 and the carriage 10 movably mounted therein can be seen.

Further shows FIG. 1 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, which extend from the front of the support member 2 to beyond the rear side parallel to the support member 2. The guides 3 are connected in the front region with the carrier element via a U-shaped connecting piece. The upper illustration in FIG. 1 shows the extract and the oven separately, and in the lower part of FIG. 1 the extract is used and retracted in the oven or the linear guide system according to the invention.

The Figures 2 and 3 show a first embodiment variant according to the variant 1 described above of the linear guide system according to the invention, which is particularly preferred. In FIG. 2 is the outer wall 7 of a carcass or oven, as in FIG. 1 is shown. On the outer wall 7 three linear guide systems according to the invention in different traversing and locking states are shown one above the other. From the excerpt, as in FIG. 1 is shown in is FIG. 2 only the guide 3 shown. At its free end, the guide 3 on the top a latching recess 11 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 middle illustration in FIG. 2 shows the state when inserting the guide in the linear guide system, and the lower illustration in FIG. 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 the first embodiment when inserting the guide 3 a statement, each left a schematic side view of the carriage 10 and the outer rail 9 and each right a corresponding view are shown from the front.

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 designed in this embodiment as a U-profile, in which the respective free ends of the U-legs attached to the back of the carriage are 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 tab 14 for the engagement of the guide 3 of the drawer with the carriage 10. In the upper illustration in FIG. 3 the latching 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 bolt 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 locking a corresponding latch recess or bolt hole 15 is provided on a stationary plate, in which the locking pin for locking the carriage 10 relative to the outer rail 9 can retract, as shown in the middle and lower illustration in FIG. 3 is shown. The latch 17 is on the in FIG. 3 provided on the left side with a recess into which the free end of the guide 3 retract and with the latch 17 can engage.

The upper illustration in FIG. 3 shows the state of the linear guide system, in which the guide 3 with the carriage 10 is engaged and the locking pin 16 is lifted out of the locking recess or bolt hole 15 so that the carriage can be moved along with the extract along the outer rail 9 and the guide 3 at the same time is secured to the carriage 10 against pulling out of the receptacle 13. By engaging the free end of the guide 3 with the latch 17, the latch 17 is held against the bias of the spring 19 above, so that the locking pin 16 does not retract into the locking hole 15 or in the process of Carriage 10 along the outer rail 9 not on the stationary plate in which the locking hole 15 is provided, can grind.

The middle illustration in FIG. 3 shows the process when locking the carriage 10 relative to the outer rail 9 and the disengagement of the guide 3 with the carriage 10. For this, the guide 3 is slightly tilted by lifting the drawer at the front end, the latch 17 is guided vertically downwards and the locking pin 16th in the designated locking recess or bolt hole 15 moves. At the same time, the latching tab 14 is brought out of engagement with the latching recess 11 at the free end of the guide 3. As it is in FIG. 3 is shown 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 method along the outer rail 9. This prevents the carriage from being moved unintentionally, such as when reinserting the statement, to the rear and makes it difficult to insert the drawer.

FIG. 4 shows in the various stages, as well as in FIG. 3 a second embodiment according to the above-described variant 2 of the linear guide system according to the invention, in which the locking means for locking the carriage 10 against a method along the outer rail 9 include a spring support 22 with a leaf spring 23 attached thereto. 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 representation in FIG. 4 Above shows the state in which the guide 3 with the carriage 10 against accidental removal is engaged 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 lead-in bevel 20 is formed and arranged to engage the detent recess 11 at the free end of the guide 3 for securing the guide 3 to the carriage 10, as shown in FIG FIG. 4 is shown 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 view of FIG. 4 is shown. The leaf spring 23 follows its bias and lowers down to the Stop 21 from, wherein the locking pin 25 retracts 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 statement is done in reverse order, ie as shown in FIG. 4 from the bottom up.

FIG. 5 shows a third embodiment according to the above-described variant 3 of the linear guide system according to the invention, wherein the locking means for locking the carriage 10 against a method along the outer rail 9 comprises a rotatably mounted on a lever carrier 36 locking lever 30 which is biased by a spring (not shown) , The locking lever 30 has in the extension direction on a stop against which the guide 3 presses when inserting the drawer and tilted the locking lever 30 against its spring bias. 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. On the stationary plate, a Entriegelungsschräge 35 is further provided, on which the locking tab 32 opposite free end of the rocker arm 33 ascends when the carriage is fed in the extension direction of the end of the outer rail. When driving the free end of the rocker arm 33 on the Entriegelungsschräge 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 rocker arm 33 is effected by tilting the guide 3 by lifting the extract in the front region, the free end of the guide 3 presses on the locking tab 32, the rocker arm 33 is tilted against the bias by the spring 39 and the opposite free end for overcoming the step on the Entriegelungsschräge 35 lifts.

When pulling out the guide 3 from the receptacle 13, as shown in the middle and lower illustration of FIG. 5 is shown, the locking lever 30 is in the direction of its spring bias tilted, moves with its free end in the latch recess or latch bore 38 and secures the carriage 10 against a method along the outer rail. 9

FIG. 6 shows a fourth embodiment according to the above-described variant 4 of the linear guide system according to the invention, in which the locking means on a spring holder 47 mounted first and second leaf springs 40 and 48 include. The first leaf spring 40 has a locking pin 41 protruding downwards in the vertical direction, which can be moved into a corresponding locking recess or locking bore 42 for locking the carriage against a movement along the outer rail 9. The first leaf spring 40 has further at its free end on a Entriegelungsschräge 46, to which the free end of the guide 3 abuts when inserting the first leaf spring 40 lifts against its spring bias and thereby leads the locking pin 41 from the latch recess or bolt hole 42. 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 is engageable 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 FIG. 6 is shown. 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, an interlocking by retraction of the intermediate pin 43 into the intermediate bolt hole 44, to prevent the carriage 10 can move in this insertion already out of position. As soon as the latching tab 45 on the second leaf spring 48 dips into the latching recess 11 on the guide 3, the intermediate latching pin 43 is lifted out of the intermediate latch bore 44 again. The guide 3 is then engaged and secured with the carriage 10 via the latching tab 45 and the latching recess 11, and the carriage can be moved along with the drawer along the outer rail 9.

When taking out the guide 3 from the receptacle 13, the free end of the guide 3 is led away from the Entriegelungsschräge 46 of the first leaf spring 40 so that the leaf spring 40 yielding to their bias and the latch pin 41 can press down into the latch recess or bolt hole 42, as it in FIG. 6 shown below. In this position, the carriage 10 is locked against a process along the outer rail 9.

LIST OF REFERENCE NUMBERS

1

abstract

2

Carrier element or inner frame

3

guide

4

Body or oven

5

Cabinet side wall or muffle side wall

6

Carcass back or muffle back wall

7

outer wall

8th

Gap or cold area

9

Outer rail (stationary)

10

Sleigh (mobile)

11

recess

12

ball-bearing

13

admission

14

snap tab

15

Bar recess or bar bore

16

locking pin

17

bars

18

bolt guide

19

feather

20

chamfer

21

attack

22

spring support

23

leaf spring

24

Bar recess or bar bore

25

locking pin

30

locking lever

32

snap tab

33

rocker arm

34

Kipphebelträger

35

Entriegelungsschräge

36

lever support

38

Bar recess or bar bore

39

feather

40

first leaf spring

41

locking pin

42

Bar recess or bar bore

43

Between locking pin

44

Between bolt hole

45

snap tab

46

Entriegelungsschräge

47

penholder

48

second leaf spring

Claims (19)

1. A linear guide system for a slide-out member (1) in a drawer system or a baking oven, comprising

   - a slide-out member (1) which includes a support element (2) and two elongate guides (3) extending rearwardly laterally of the support element (2),

   - at least one pair of stationary outer rails (9) which are mounted in a horizontally extending position on the inside of a carcass wall (7) and at each outer rail (9) a slide (10) which is supported on the outer rail (9) slidably along the length thereof,

   - engagement means (11, 14, 20, 32, 45) for bringing the guide (3) of the slide-out member (1) into engagement with the slide (10), and

   - locking means (15, 16, 24, 25, 30, 38, 41, 42) for locking the slide (10) to prevent displacement along the outer rail (9), which are adapted for locking the slide (10) in an extended position with respect to the displacement travel of the slide-out member (1), characterised in that
   the locking means (15, 16, 24, 25, 30, 38, 41, 42) for locking the slide (10) to prevent displacement along the outer rail (9) are so adapted that they lock the slide (10) against displacement when the guide (3) of the slide-out member (1) is brought out of engagement with the slide (10) and unlock the slide (10) for displacement along the outer rail (9) when the guide (3) of the slide-out member (1) is brought into engagement with the slide (10).
2. A linear guide system according to claim 1 characterised in that the slide (10) is mounted slidably along the outer rail (9) by means of a sliding guide, a rolling or roller bearing or a ball bearing (12).
3. A linear guide system according to one of the preceding claims characterised in that the elongate guides (3) are in the form of rods or tube profile members of circular or polygonal cross-section, which extend rearwardly in parallel relationship with the side edges of the support element (2).
4. A linear guide system according to one of the preceding claims characterised in that the elongate guides (3) extend rearwardly beyond the rear boundary of the support element (3).
5. A linear guide system according to one of the preceding claims characterised in that the length of the slide (10) is at most 1/3, preferably at most 1/4, particularly preferably at most 1/5 of the length of the outer rail (9).
6. A linear guide system according to one of the preceding claims characterised in that provided on the slide (10) is a receiving means (13) which is preferably in the form of a tube profile member or U-shaped profile member which extends in the longitudinal direction of the slide (10) and which is fixed to the slide, for introduction of the guide (3) and engagement thereof with the slide (10).
7. A linear guide system according to one of the preceding claims characterised in that the engagement means (11, 14, 20, 32, 45) for bringing the guide (3) of the slide-out member (1) into engagement with the slide (10) include a latching opening (11) on the guide (3) and a latching nose or latching tongue (14, 20, 32, 45) which is fixedly connected to the slide (10) and which can be brought into engagement with the latching opening (11).
8. A linear guide system according to one of the preceding claims characterised in that the locking means (15, 16, 24, 25, 30, 38, 41, 42) for locking the slide (10) to prevent displacement along the outer rail (9) include on the slide (10) a locking pin (16, 25, 41) and on the stationary outer rail (9) or a part fixedly connected thereto a locking opening or locking bore (15, 24, 38, 42) into which the locking pin (16, 25, 41) engages for locking the slide (10) to prevent displacement along the outer rail (9).
9. A linear guide system according to claim 8 characterised in that the locking pin (16, 25, 41) is spring-biased by means of a spring (19, 23, 37, 40) in the direction of the locking opening or locking bore (15, 24, 38, 42) or under the force of gravity is subjected to a force in the direction of the locking opening or locking bore (15, 24, 38, 42).
10. A linear guide system according to one of claims 1 to 9 characterised in that the locking means for locking the slide (10) to prevent displacement along the outer rail (9) have a locking guide (18) mounted to the slide (10) and a locking member (17) which is guided slidably on the locking guide (18) and from which a locking pin (16) projects, wherein the locking guide (18), the locking member (17) and the locking pin (16) are so arranged and designed that the locking member (17) is displaceable slidably against the locking guide (18) between positions in which on the one hand the locking pin (16) engages into a locking opening or locking bore (15) for locking the slide (10) to prevent displacement along the outer rail (9) and on the other hand the locking pin (16) is lifted out of the locking opening or locking bore (15).
11. A linear guide system according to claim 10 characterised in that the locking member (17) has an opening which is designed for engagement with the end portion of the guide (3).
12. A linear guide system according to one of claims 1 to 9 characterised in that the locking means for locking the slide (10) to prevent displacement along the outer rail (9) have on the slide (10) or in the receiving means (13) a spring support (22) mounted to the slide (10) and a leaf spring (23) which is fixed to the spring support (22) and from which a locking pin (25) extends, wherein the free end of the leaf spring (23) which is in opposite relationship to the end of the leaf spring (23) that is fixed to the spring support (22) faces in the pull-out direction of the slide (10).
13. A linear guide system according to claim 12 characterised in that provided on the slide (10) or in the receiving means (13) there is further an inclined introduction portion (20) for introduction of the guide (3), wherein the inclined introduction portion is so arranged that upon introduction of the guide (3) into the receiving means (13) it moves the end portion of the guide (3) to the free end of the leaf spring (23) in such a way that the leaf spring (23) is deformed in opposite relationship to its bias and in so doing lifts the locking pin (25) out of the locking opening or locking bore (25).
14. A linear guide system according to claim 13 characterised in that a part of the inclined introduction portion (20) is so designed and arranged that upon introduction of the guide (3) into the receiving means (13) said part engages into the latching opening (11) at the end portion of the guide (3) for bringing the guide (3) of the slide-out member (1) into engagement with the slide (10).
15. A linear guide system according to one of claims 1 to 9 characterised in that the locking means for locking the slide (10) to prevent displacement along the outer rail (9) have on the slide (10) or in the receiving means (13) a locking lever (30) which is mounted rotatably on a lever carrier (36) and is resiliently biased in the locking direction by means of a spring (37), wherein the locking lever (30) has an abutment surface for the end portion of the guide (3), which is so arranged that the end portion of the guide (3) upon introduction into the receiving means (13) bears against the abutment surface with tilting of the locking lever (30) in opposite relationship to the spring bias.
16. A linear guide system according to claim 15 characterised in that the locking means further include a locking opening or locking bore (38) and the locking lever has a free end which to prevent displacement of the slide (10) along the outer rail (9) can be brought into engagement with the locking opening or locking bore (38).
17. A linear guide system according to claim 15 or claim 16 characterised in that it further includes on the slide (10) or the receiving means (13) a tilting lever carrier (34) and a tilting lever (33) mounted rotatably thereto, wherein at one free end the tilting lever has a latching tongue (32) which is so designed that by tilting movement of the tilting lever (33) it can be brought into engagement with a latching opening (11) on the guide (3) for bringing the guide (3) of the slide-out member (1) into engagement with the slide (10).
18. A linear guide system according to claim 17 characterised in that an inclined unlocking portion (35) is further provided on the stationary outer rail (9) or a part fixedly connected thereto, which inclined unlocking portion is so designed and arranged that the free end of the tilting lever (33), that is opposite to the latching tongue (32), passes onto the inclined unlocking portion (35) when the slide (10) is moved into the front displacement position and the tilting lever (33) is tilted in a direction in which the latching tongue (32) on the tilting lever (33) is out of engagement with the latching opening (11) on the guide (3).
19. A linear guide system according to one of claims 1 to 9 characterised in that the locking means for locking the slide (10) to prevent displacement along the outer rail (9) and the engagement means for bringing the guide (3) of the slide-out member (1) into engagement with the slide (10) include on the slide (10) or in the receiving means (13) a spring holder (47) with a first leaf spring (40) which is fixed to the spring holder (47) and which at its free end has an inclined unlocking portion (46) and a locking pin (41) extending from the leaf spring, and with a second leaf spring (48) which is fixed to the spring holder (47) and which has an intermediate locking pin (43) extending from the leaf spring and a latching tongue (45) extending in the opposite direction for engagement with the latching opening (11) at the end portion of the guide (3) of the slide-out member (1).

Images