EP2690367B2 - Covering - Google Patents

Description

The present invention relates to a telescopic rail with a first and at least one further rail element, the first rail element being able to be pulled out of the household appliance when the telescopic rail is fastened in a household appliance and having a tab at its end pointing towards the opening of the household appliance, which is perpendicular to the Extension direction of the telescopic rail extends.

Telescopic rails of the type mentioned are known in the prior art. They are used in various household appliances, including dishwashers, microwaves, ovens, steamers, etc. Such telescopic rails are used in these appliances to hold and pull out inserts, for example food supports, including baking trays and grates. In household appliances that are used to heat objects, especially food, the entire interior of the household appliance is usually heated. The telescopic rails mentioned at the outset usually consist of a metal or a metal alloy, optionally with a coating, with the telescopic rail also heating up when the interior of the household appliance is heated.

When using telescopic rails of this type in an oven, for example, a baking tray resting on a pair of telescopic rails can be completely or partially moved outside of the oven with the aid of the telescopic rails. The baking tray can be easily removed in this state, it being necessary to move the extended rail elements of the telescopic rail back into the oven interior before closing the oven door. The rail elements, which are also heated by the high temperatures inside the oven, including the adjoining brackets, which may also be made of a metal or a metal alloy, can cause burn injuries to a user when the rail elements are pushed back, especially if a pot holder or similar heat protection is used.

the DE 20 2008 014 790U1 relates to a pull-out guide, in particular for ovens, with a guide rail on which at least one further rail is movably mounted via rolling bodies, the rolling bodies being guided along raceways on the rails. A plug is fixed to the running rail.

the EP 2 314 934 relates to a device for receiving a food support for a household appliance, a household appliance, in particular an oven, with such a device and a method for operating such a device. A front stop for the food support can be formed at the front end of the second rail, which is a cover cap that is placed on the second rail. This cover cap is preferably made of a plastic, in particular a poorly or non-thermally conductive plastic, and as a result contact points between the rail and a part thereof and the food support can be made to be weakly or non-thermally conductive, so that excessive heating via these contact points can be avoided.

Proceeding from this state of the art, the present invention is based on the object of providing a telescopic rail, the handling of which does not involve any risk of burns, or the risk of burns is reduced.

According to a first aspect, this object is achieved in that the tab has a cover on at least one surface facing the opening of the household appliance, which consists of a material that is less thermally conductive than the material from which the tab is made, the cover having a or has a plurality of fastening sections which/which extend/extend at least in sections over a surface of the lug facing away from the opening of the household appliance. This object is also achieved according to a second aspect in that the tab has a cover on at least one surface facing the opening of the household appliance, which consists of a material that is less thermally conductive than the material from which the tab is made, the cover consists of silicone. This object is also achieved according to a third aspect in that the tab has a cover on at least one surface facing the opening of the household appliance, which is made of a material that is less heat-conducting than the material from which the tab is made, the cover has a material thickness of about 1 mm to about 3 mm.

By providing a tab on a first rail element of a telescopic rail with such a cover, the surface that is usually touched by a user of the household appliance to fully insert the telescopic rail into the household appliance is completely or partially covered with a material that reduces the risk of burns in the household appliance Compared to a material with good thermal conductivity such as metal or a metal alloy, from which the rail elements and the bracket of a telescopic rail are usually made, reduced. Although such a material is also heated, since it is also located in the household appliance during heating, it prevents a strong transfer of heat to the skin. This effectively reduces the risk of burns.

In addition, the part of a telescopic rail that protrudes furthest out of the household appliance when the telescopic rail is pulled out is covered by the cover on the surface of a tab on a first rail element of a telescopic rail that faces the opening of the household appliance. When the oven door is closed, this cover prevents the telescopic rail from coming into direct contact with a door of the household appliance, despite the telescopic rail being extended. As a result, in addition to the effect described above, damage to the door of the household appliance by the telescopic rail can also be prevented.

In addition, such a cover at least partially covers a surface of the tab on a telescopic rail that is in the user's field of vision when the household appliance is in use. As a result, discolorations that occur in telescopic rails and tabs on telescopic rails when heated to higher temperatures are at least partially covered and the visual impression is improved.

In one embodiment, the cover completely covers the surface of the tab pointing towards the opening of the household appliance. This makes a special effective protection against burns guaranteed. In another embodiment, the cover partially covers the surface of the tab facing the opening of the household appliance. As a result, on the one hand material of the cover is saved and on the other hand the application of the cover to the tab can be facilitated.

A cover according to the invention can be applied to the lug of the first rail element of the telescopic rail by means of different configurations. In certain embodiments, this is done by a special design of the cover, the cover having sections that engage behind the tab at least in sections. Such sections are also referred to as undercuts. On the one hand, these undercuts can be guided around an outer edge of the tab or, on the other hand, can be passed through openings or openings located in the tab.

In one embodiment, the cover is bonded to the tab by gluing. In one embodiment, the cover is produced by injection molding, with the tab being overmolded directly while the cover is being produced in the injection molding process. Such an embodiment provides a particularly stable connection between the cover and the tab. In one embodiment, the cover is made of a material that is in a liquid form and hardens to assume its final shape. In such an embodiment, the cover and tab can be connected by dipping the tab into the still liquid material. This embodiment also provides a particularly stable connection between the tab and the cover.

In one embodiment, the cover has a thermal conductivity of less than 5 W/(m*K), preferably less than 3 W/(m*K), particularly preferably less than 1 W/(m*K). The rail elements usually made of metal or a metal alloy and the bracket connected to them or formed in one piece generally have a thermal conductivity coefficient of approximately 40 W/(m*K) to 100 W/(m*K) or even significantly higher. For example, pure iron has a thermal conductivity of around 80 W/(m*K) and aluminum has a thermal conductivity of around 236 W/(m*K). The information on thermal conductivity given here applies to a temperature of 0°C and represents a material constant.

Covering materials having such thermal conductivities as noted above are known to those skilled in the art. These include various plastics, including silicone and polyetheretherketone (PEEK). Particularly preferred materials have a thermal conductivity of about 0.5 W/(m*K) or about 0.3 W/(m*K) or less.

According to the invention according to claim 2 and in an embodiment of the invention according to claim 1 or 3, the cover consists of a silicone or comprises a silicone. For the purposes of the present invention, silicones are synthetic polysiloxanes. The advantage of silicones in the context of the present invention is that these materials can be manufactured with desired properties including certain temperature resistance and elasticity. It is preferably a crosslinked silicone, in particular a silicone rubber or silicone elastomer, the crosslinking preferably taking place by a platinum-catalyzed reaction. A preferred silicone is a methyl vinyl silicone rubber, most preferably a platinum catalyzed crosslinked methyl vinyl silicone rubber. Silicones of this type have a high temperature resistance and, at the same time, still have sufficient elasticity, so that when the cover is subjected to stress, for example by hitting the oven door, the forces acting are damped.

In one embodiment, the cover has a side facing the tab and a side facing away from the tab, having projections and/or indentations on its side facing away from the tab and/or on its side facing the tab. The projections and/or depressions are preferably incorporated on or into the base material of the cover. Such projections and/or depressions can have different shapes. In certain embodiments, the protrusions are in the form of rounded nubs, elongated ribs, oval nubs, and combinations thereof, and the indentations are in the form of circular or oval indentations, or elongated grooves, or combinations thereof. In certain embodiments, the cover has a combination of indentations and protrusions. In certain embodiments, the cover has projections, these increasing the material thickness at the thickest point of the projection by 1 mm to 2.5 mm.

As used herein, the terms "tab-facing side" and "tab-remote side" refer to a portion or portions of the cover that covers the tab on its surface facing the opening of a household appliance .

In certain embodiments, the cover has projections and/or indentations only on its side facing away from the tab. In certain embodiments, the cover has projections and/or indentations both on the side facing away from the tab and on the side facing the tab.

The advantage of such designs of covers is that there is no direct contact between the cover and the hand of the user or between the cover and the tab at the points where there are gaps between projections or where there are depressions. The air cushion provided in these areas reduces the risk of burns when handling the telescopic rails reduced even further.

In one embodiment, the side of the cover facing away from the tab is essentially flat or smooth. Due to this configuration of this surface, the cover in the area of this surface is particularly easy to clean.

In one embodiment, the cover lies flat against the tab with its side facing the tab. This design reduces the risk of the cover shifting relative to the tab.

According to the invention according to claim 3 and in an embodiment of the invention according to claim 1 or 2, the cover has a material thickness of approximately 1 mm to approximately 3 mm, preferably from approximately 1.5 mm to approximately 2.5 mm. It has been shown that material thicknesses of this type only slightly increase the thickness of the tab and thus only slightly reduce the space that the telescopic rail can take up inside the household appliance. On the other hand, with such a material thickness, the heat transfer from the rail element to the user is well reduced. In addition, covers with such a material thickness can be produced from a weakly elastic material in such a way that they can easily be applied to a tab with the aid of undercuts. The material thickness here refers to the base material without any projections or depressions that may be present.

According to the invention as claimed in claim 1 and in an embodiment of the invention as claimed in claim 2 or 3, the cover has one or more fastening sections which extend/extend at least in sections over a surface of the tab facing away from the opening of the household appliance. Such a configuration, in which attachment takes place by attachment sections that provide undercuts of the tab, makes it possible to provide a telescopic rail in which a cover can be stably attached and is detachably connected to the rail. This allows for easy replacement of the cover, for example when the material of the cover has deteriorated due to multiple heating and cooling cycles. On the other hand, this prevents the cover from being unintentionally removed from the telescopic rail.

In one embodiment, the cover has exactly one fastening section. In one embodiment, the cover has two, three, four or more fastening sections.

Different configurations of such fastening sections are covered by the invention. In particular, such fastening sections can be adapted to the special design of the strap and the connection of rail element and strap.

In one embodiment, the cover preferably lies against the tab in a form-fitting manner, but without prestressing the material. Such a configuration of the cover, in which it rests against the tab without prestressing, increases the service life of the cover in comparison to prestressed covers.

In one embodiment, fastening sections are connected to the cover in such a way that, in the case of a substantially rectangular tab, which can have rounded corners, they encompass the tab at all four corners and, moreover, do not grip the area of the tab facing away from the opening of the household appliance from the cover or their attachment sections is covered.

In one embodiment, the cover essentially has two fastening sections which, in the case of an essentially rectangular tab, in which the corners can be rounded off, extend around the narrow sides of the rectangular tab. In this embodiment, the surface of the tab facing away from the opening of the household appliance can otherwise remain uncovered by the cover or its fastening sections.

The fastening sections are preferably formed in one piece with the cover and consist of the same material as the cover.

In one embodiment, the cover has a fastening section which, in the case of a rectangular cover, extends from one narrow side or long side of the cover to the opposite narrow side or long side of the cover. With such a configuration of the cover with a fastening section, it is possible to slide the cover, which in this embodiment together with the fastening section takes the form of a loop, onto a tab that has a free end, via the free end.

In one embodiment, the cover has lateral webs which run perpendicularly to a surface of the tab facing the opening of the household appliance and rest against the tab but do not reach behind it. Webs of this type prevent the cover from shifting relative to the tab.

In one embodiment, the cover has a damping section, which protrudes beyond the plane of the surface of the tab facing away from the opening of the household appliance in a direction facing away from the opening of the household appliance, with a further rail element, when the telescopic rail is pushed completely together, having a first end with the Damping section comes into touching engagement. The damping section prevents the first end of the further rail element from actually coming into contact with the tab and, if necessary, dampens the forces that occur as a result of the telescopic rail being pushed together vigorously. In this embodiment, the damping section serves as a shock absorber and prevents the generation of shock noises when the telescopic rail is pushed together completely. Furthermore, the damping section prevents metal parts of the rail elements from colliding when pushed together and bouncing of the rail members from each other is reduced.

In certain embodiments, the cushioning portion is an element of the cover that performs no other function. In other embodiments, the cushioning section has yet another function, in whole or in part. In certain embodiments, the fastening section is designed in such a way that it also functions completely or at least partially as a damping section.

In one embodiment, the cover has a peg on its side facing the lug, which is guided through an opening in the lug, with a section of the lug bearing against a surface of the strap facing away from the opening of the household appliance. In this embodiment, too, the cover is fastened to the tab with the aid of an undercut on the cover, which is provided in the form of a pin. The pin is thus a special embodiment of a fastening section. The peg is preferably mushroom-shaped and is pressed through the opening of the tab with elastic deformation of the peg and then preferably lies in a form-fitting manner on the surface of the tab facing away from the opening of the household appliance. In this embodiment, the cover cannot be detached from the tab, or can be detached only with difficulty, without destroying the cover. This provides a stable connection between the cover and the tab, which prevents the cover from inadvertently detaching from the tab. In addition, the pin protrudes beyond the plane of the surface of the tab facing away from the opening of the household appliance in a direction away from the opening of the household appliance and at the same time forms a damping section, the pin partially touchingly engages a first end of a further rail element when the telescopic rail is fully retracted.

In one embodiment, the lug has an opening and the cover has a damping section on its side facing the lug, which protrudes from the cover by more than the material thickness of the lug and is guided through the opening in the lug. In this embodiment, the opening in the bracket is preferably arranged such that when the telescopic rail is pushed together, an end of the other rail element pointing in the direction of the opening of the household appliance would strike the bracket in the area of the opening. In this embodiment, too, the damping section, which is guided through the opening in the lug, prevents the first end of the further rail element from coming into contact with the lug, and forces that may occur as a result of vigorously pushing together the telescopic rail are damped.

In one embodiment, the first rail element has a support surface for supporting a food support and the cover extends at least partially over the surface of the bracket facing away from the opening of the household appliance, the cover on the side of the bracket facing away from the opening of the household appliance having a surface on the support surface of the first rail element resting support portion. Such a configuration provides a support for a food support, for example a baking tray, through the support section, so that it does not rest directly on the rail element. In the case of coated rail elements and/or coated baking sheets in particular, it is advantageous if there is no direct contact between metal on metal or coated metal on metal or coating on coating, since frequent contact between these surfaces can damage the coating. Furthermore, noise is minimized when the food support is placed on the rail element. In one embodiment, the support section preferably has a material thickness of 2 to 20 mm.

In one embodiment, the first rail element has a support surface for supporting a food support and the cover extends at least partially over the surface of the strap facing away from the opening of the household appliance, with the cover on the side of the strap facing away from the opening of the household appliance extending from the support surface of the first rail element has spaced holding portion. With a cover designed in this way, the holding section is provided for holding a food support. This holding section is preferably designed in the form of a latching lug, wherein when the food support is placed on the rail element, the edge of a food support is introduced below the holding section and this fixes the food support on the rail element. The holding section is preferably located at a distance from the support surface of the rail element or, if a support section is present, at a distance from the support section that essentially corresponds to the thickness of the food support at this point. In certain embodiments, this distance can be in a range of 2 to 10 mm.

• Figur 1: eine erste Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 2: eine zweite Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 3: eine dritte Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 4: eine vierte Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 5: eine fünfte Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 6: eine sechste Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 7: eine siebte Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung,
• Figur 8: eine achte Ausführungsform einer erfindungsgemäßen Teleskopschiene mit Abdeckung und
• Figur 9: verschiedene Ausgestaltungen der von der Lasche abgewandten Seite einer Abdeckung.

Further advantages, features and application possibilities of the present invention become clear on the basis of the following description of preferred embodiments and the associated figures. Show it:

• figure 1 : a first embodiment of a telescopic rail according to the invention with a cover,
• figure 2 : a second embodiment of a telescopic rail according to the invention with cover,
• figure 3 : a third embodiment of a telescopic rail according to the invention with cover,
• figure 4 : a fourth embodiment of one according to the invention telescopic rail with cover,
• figure 5 : a fifth embodiment of a telescopic rail according to the invention with a cover,
• figure 6 : a sixth embodiment of a telescopic rail according to the invention with a cover,
• figure 7 : a seventh embodiment of a telescopic rail according to the invention with a cover,
• figure 8 : an eighth embodiment of a telescopic rail according to the invention with cover and
• figure 9 : Different configurations of the side of a cover facing away from the tab.

For reasons of clarity, only sections are shown in the figures of rail elements described below. The same applies to food carriers resting on the rail elements.

In figure 1 an embodiment of a telescopic rail according to the invention with a cover is shown in three different views. Figure 1a ) shows the first rail element 1 of the telescopic rail with the tab 2 before the cover 10 is applied in a side view. In this view, the surface of the tab 4 facing away from the opening of the household appliance and the side of the cover 11 facing the tab are visible. On its side 11 facing the tab, the cover 10 has fastening sections 14 which, when the cover 10 is attached to the tab 2, cover the narrow sides of the essentially rectangular tab. In other words, the attachment sections 14 provide undercuts which, when the cover is applied to the tab, bear against the surface 4 of the tab 2 facing away from the opening of the household appliance. In addition, the cover in the in figure 1 shown embodiment lateral webs that connect the attachment portions 14 together. These webs do not reach behind the tab 2 and only prevent the cover 10 from slipping off the tab 2 to the side.

In Figure 1b ) the embodiment is off Figure 1a ) also shown in a side view with the cover 10 applied to the tab 2.

In figure 2 an embodiment according to the invention of a telescopic rail with a cover is shown, which essentially corresponds to that in figure 1 illustrated embodiment corresponds. In addition, however, the telescopic rail shown in this embodiment has an opening 7 on the bracket 2 of the first rail element 1 , through which a damping section 18 is guided when the cover 10 is applied to the bracket 2 . When the telescopic rail is pushed together completely, during which at least a first end 9 of another rail element 8 generally comes into contact with the surface 4 of the tab 2 facing away from the opening of the household appliance, there is no such contact in this embodiment. Rather, the damping section 18 protrudes beyond the surface 4 of the tab 2 facing away from the opening of the household appliance in a direction away from the opening of the household appliance, so that the first end 9 of the further rail element 8 comes into contact with this damping section 18 . As a result, damping is provided which, among other things, minimizes the noise that occurs when the rails are pushed together.

the Figures 2a) and 2b ) correspond to the illustrations 1a) and 1b) described above, with an opening 7 also being provided in each case in the tab 2 and a damping section 18 being located on the cover 10.

Figure 2c ) shows the embodiment in a longitudinal section, which runs parallel to the pull-out direction and essentially centrally from top to bottom through the cover, only a portion of the first rail element 1 and the further rail element 2 being shown. In the state shown, the telescopic rail is not fully pushed together. In this view it is clear that the fastening sections 14 engage the tab 2 from behind. The cover 10 rests with its side 11 facing the tab on the surface 3 of the tab 2 pointing towards the opening of the household appliance. In addition, it rests with the fastening sections 14 on the surface 4 of the tab 2 facing away from the opening of the household appliance. The cross section also clearly shows that the side 12 of the cover 10 facing away from the tab has a corrugation formed by projections 13 . It is also clearly visible that when the telescopic rail is pushed together completely, the further rail element 8 comes into contact with the damping section 18 with its first end 9 and not with the bracket 2 itself.

In figure 3 another embodiment of a telescopic rail according to the invention with a cover is shown in two different views. In Figure 3a ) the embodiment is shown in a side view with the cover separated from the tab 2. In this embodiment, the cover 10 has an attachment portion 14 connected to the cover at two locations. This provides an overall looped coverage. This cover 10 can be pushed laterally onto the tab 2 on a first rail element 1 . For this purpose, indentations are provided in the fastening section at the points at which the tab 2 is connected to the first rail element 1.

In Figure 3b ) the embodiment is off Figure 3a ) also shown in a side view, with the cover 10 applied to the flap 2. The side 11 of the cover facing the tab rests against the surface 3 of the tab 2 facing the opening of the household appliance, and the fastening section 14 rests against the surface 4 of the tab 2 facing away from the opening of the household appliance, with this surface not being completely separated from the Fixing section covered will.

Figure 3c ) shows the in the Figures 3a) and 3b ) illustrated embodiment in a longitudinal section, the section running parallel to the extension direction of the telescopic rail and essentially centrally from top to bottom through the cover 10. Also shown in this representation is a further rail element 8 which can be displaced relative to the first rail element 1 . In the state shown, the telescopic rail is not fully pushed together. When the telescopic rail is pushed together completely, the first end 9 of the other rail element 8 strikes the fastening section 14 of the cover 10 . The central part of the fastening section 14 therefore serves at the same time as a damping section 18 which prevents the first end 9 of the further rail element 8 from coming into contact with the tab 2 when it is pushed together.

figure 4 shows a further embodiment of a telescopic rail according to the invention with a cover in different views. Figure 4a ) shows the embodiment in a side view, with the cover separated from the tab in this view. In this embodiment, the tab 2 has a special configuration, with an opening 5 being provided. A pin 15 is provided on the side 11 of the cover 10 facing the bracket for fastening the cover to the bracket 2 of the first rail element 1 . This is passed through the opening 5 of the tab 2 when the cover is attached, being elastically deformed and compressed as it is passed through.

Figure 4b ) shows the embodiment Figure 4a ) also in a side view, with the cover 10 applied to the flap 2. After passing the peg 15 through the opening 5, the peg has expanded again due to elastic properties of the material from which the cover and peg are made and provides a secure connection between the cover 10 and the flap 2. The pin rests against the surface 4 of the tab 2 facing away from the opening of the household appliance and the cover 10 rests with its surface 11 facing the tab on the surface 3 of the tab 2 pointing towards the opening of the household appliance. It can be clearly seen that the cover 10 in this embodiment not only covers the surface 3 completely, but also protrudes beyond it.

In Figure 4c ) is the embodiment from the Figures 4a) and 4b ) is shown in a longitudinal section, with a further rail element being shown in addition. In this view it is clearly visible that the peg 15 guided through the opening 5 has a mushroom-shaped cross section, which on the one hand allows the peg to be pushed through the opening 5 and on the other hand largely prevents it from being pulled back. In addition, the pin 15 is also a damping section 18, since when the telescopic rail is pushed together, metal parts of the first and a further rail element do not meet through this pin and in particular the first end 9 of the further rail element 8 comes into contact with the pin. In this embodiment, too, projections 13 are provided on the side 12 of the cover 10 facing away from the tab, which projections provide a corrugation.

figure 5 shows yet another embodiment of a telescopic rail according to the invention with a cover. In Figure 5a ) shows a side plan view, in which the cover 10 is separated from the tab 2 of the first rail element 1. On its side 11 facing the tab, the cover 10 has a fastening section 14 which, when the cover 10 is attached to the tab 2, covers a narrow side and a long side of the essentially rectangular tab. Due to this special configuration, the cover 10 can be pushed onto the tab 2 from above. The cover also has a web which, when applied to the tab 2 , does not reach behind it and runs along the otherwise free longitudinal side of the tab, thus preventing the cover 10 from slipping off the tab 2 to the side.

In Figure 5b ) the embodiment is off Figure 5a ) is also shown in a side view, with the cover 10 being slid onto the tab 2.

Figure 5c ) represents a sectional view through the tab 2 with the cover, the sectional plane running parallel to the plane in which a baking tray resting on the rail element 1 would run. In this view it can be clearly seen that the cover 10 has an asymmetrical fastening section 14 which engages behind the tab 2 on one longitudinal side. On the other longitudinal side there is a web, which however does not engage behind the flap 2 .

figure 6 shows a further embodiment of a telescopic rail according to the invention with a cover. In this embodiment, a tab 2 is attached to the first rail element 1, which is essentially rectangular, but on the narrow sides of which sections are bent away from the rail element.

In Figure 6a ) shows a side view of a cover 10 which is applied to a tab 2 on a rail element 1. In this embodiment, the cover 10 has incisions on its side 11 facing the tab, through which fastening sections 14 are provided. These incisions correspond to the bent-away sections of the lug 2. On its side 12 facing away from the lug, the cover 10 has a corrugation formed by projections 13. FIG.

In Figure 6b ) the embodiment is off Figure 6a ) is shown with cover 10 removed from tab 2. FIG. In this representation, the design of the fastening sections 14 can be clearly seen through incisions in the side of the cover facing the tab.

figure 7 shows a further embodiment of a telescopic rail according to the invention with a cover. To illustrate the special design of the cover, this is in the Figures 7a) and 7b ) shown without the tab and rail member.

In Figure 7a ) the cover is shown in a side view. The cover has a fastening section 14 which is connected to the cover at two points, with the cover and fastening section 14 forming a loop which can be pushed laterally onto a tab 2 . The cover 10 has on its side facing away from the tab 12 projections 13 in the form of knobs and grooves. This is clearer in the illustration in Figure 6b ) which is a plan view of side 12 of cover 10. FIG.

In Figure 7c ) is a side view of the in the Figures 7a) and 7b ) shown cover 10 is shown, wherein the cover is applied to a tab 2 on a first rail element 1. This figure also shows a further rail element 8 of the telescopic rail, the telescopic rail being shown in a fully collapsed state. In addition, this depiction also shows a product support 20 which rests on the first rail element 1 . The cover extends through the fastening section 14 to the surface 4 of the tab 2 facing away from the opening of the household appliance and has a support section 16 and a holding section 17 there Bearing surface 6 of the first rail element 1 rests and when the food support 20 is applied prevents the food support 20 from directly resting on the rail element 1 . This prevents metallic materials of the rail element and the food support from rubbing against one another. The fastening section 14 also prevents the food support from rubbing against the bracket 2 . Also provided on the cover 10 is a holding section which runs above the support surface 6 of the first rail element at a distance from the support section 16 which essentially corresponds to the thickness of the food support 20 at this point. This configuration prevents the food support from being unintentionally removed from the telescopic rail. Furthermore, the cover 10 extends with its attachment section 14 over a large part of the surface 4 of the tab 2 facing away from the opening of the household appliance Figure 7c ) is shown, the first end 9 of a further rail element 8 rests against the telescopic rail in the fully collapsed state or with which this end comes into contact.

In figure 8 a further embodiment of a telescopic rail with a cover is shown, the cover 10 being separated from the bracket 2 of the first rail element 1 in order to simplify the illustration. In this embodiment, the cover has a particularly simple design and provides a side 11 facing the tab, which has a surface which corresponds to the surface of the surface 3 of the tab 2 facing the opening of the household appliance. In this embodiment, the cover 10 is attached to the flap 2 by gluing.

In figure 9 different configurations of the side 12 of covers 10 facing away from the tab are shown. The configuration of the surface of this page 12 is independent of the rest of the shape of the cover and the surfaces shown in FIGS Figures 9a), 9b) and 9c ) can be combined as desired with any of the embodiments described above and other embodiments not explicitly described here.

In Figure 9a ) shows a cover with transverse ribbing, which is formed by rib-shaped projections 13.

Figure 9b ) shows a cover with longitudinal projections 13.

Figure 9c ) shows a cover with projections 13 in the form of knobs.

For the purposes of the original disclosure, it is pointed out that all features, as they are apparent to a person skilled in the art from the present description, the drawings and the dependent claims, even if they were specifically described only in connection with certain further features, both individually and can be combined in any combination with other features or feature groups disclosed here, unless this has been expressly excluded or technical circumstances make such combinations impossible or pointless. The comprehensive, explicit presentation of all conceivable combinations of features and the emphasis on the independence of the individual features from one another are omitted here only for the sake of brevity and legibility of the description.

Reference list:

1

first rail element

2

tab

3

surface of the tab pointing towards the opening of the household appliance

4

surface of the tab facing away from the opening of the household appliance

5

opening in the flap

6

Bearing surface of the first rail element

7

breakthrough

8th

another rail element

9

first end of the further rail element

10

cover

11

the side of the cover facing the tab

12

side of the cover away from the tab

13

protrusions

14

Attachment Section(s)

15

cones

16

support section

17

holding section

18

cushioning section

20

food carrier

Claims (15)

1. A telescopic rail having a first (1) and at least one further rail element, wherein the first rail element (1) in a condition of the telescopic rail, in which it is fixed in a domestic appliance, can be pulled out of the domestic appliance, and at its end facing towards the opening of the domestic appliance has a tab (2) extending perpendicularly to the direction in which the telescopic rail can be pulled out, the tab (2) at least at a surface (3) facing towards the opening of the domestic appliance has a cover (10) comprising a material which is worse heat-conducting than the material which the tab (2) comprises, characterised in that the cover (10) has one or more fixing portions (14) which extends/extend at least portion-wise over a surface (4) of the tab (2), that faces away from the opening of the domestic appliance.
2. A telescopic rail having a first (1) and at least one further rail element, wherein the first rail element (1) in a condition of the telescopic rail, in which it is fixed in a domestic appliance, can be pulled out of the domestic appliance, and at its end facing towards the opening of the domestic appliance has a tab (2) extending perpendicularly to the direction in which the telescopic rail can be pulled out, the tab (2) at least at a surface (3) facing towards the opening of the domestic appliance has a cover (10) comprising a material which is worse heat-conducting than the material which the tab (2) comprises, characterised in that the cover (10) comprises a silicone or includes a silicone.
3. A telescopic rail having a first (1) and at least one further rail element, wherein the first rail element (1) in a condition of the telescopic rail, in which it is fixed in a domestic appliance, can be pulled out of the domestic appliance, and at its end facing towards the opening of the domestic appliance has a tab (2) extending perpendicularly to the direction in which the telescopic rail can be pulled out, the tab (2) at least at a surface (3) facing towards the opening of the domestic appliance has a cover (10) comprising a material which is worse heat-conducting than the material which the tab (2) comprises, characterised in that the cover (10) is of a material thickness of about 1 mm to about 3 mm.
4. A telescopic rail according to claim 1, 2 or 3 characterised in that the cover (10) has a thermal conductivity of less than 5 W/(m*K), preferably less than 3 W/(m*K), particularly preferably less than 1 W/(m*K).
5. A telescopic rail according to claim 1, 3 or 4 in as far as dependent on claim 1 or 3 characterised in that the cover (10) comprises a silicone or includes a silicone.
6. A telescopic rail according to one of the preceding claims characterised in that the cover (10) has a side (11) facing towards the tab and a side (12) facing away from the tab, wherein it has projections (13) and/or recesses on its side facing away from the tab and/or on its side facing towards the tab.
7. A telescopic rail according to one of the preceding claims characterised in that the cover (10) bears flat against the tab (2) with the cover side (11) that faces towards the tab.
8. A telescopic rail according to one of the preceding claims in as far as dependent on claim 1 or 2 characterised in that the cover (10) is of a material thickness of about 1 mm to about 3 mm, preferably about 1.5 mm to about 2.5 mm.
9. A telescopic rail according to one of claims 4 to 8 in as far as dependent on claim 3 characterised in that the cover (10) is of a material thickness of about 1.5 mm to about 2.5 mm.
10. A telescopic rail according to one of the preceding claims in as far as dependent on claim 2 or 3 characterised in that the cover (10) has one or more fixing portions (14) which extends/extend at least portion-wise over a surface (4) of the tab (2), that faces away from the opening of the domestic appliance.
11. A telescopic rail according to one of the preceding claims characterised in that the cover (10) has a damping portion (18) which projects beyond the plane of the surface (4) of the tab (2), that faces away from the opening of the domestic appliance, in a direction away from the opening of the domestic appliance, wherein when the telescopic rail is completely pushed together a further rail element (8) comes into contacting engagement with a first end (9) with the damping portion.
12. A telescopic rail according to one of the preceding claims characterised in that on its side (11) facing towards the tab the cover (10) has a projection (15) which is passed through an opening (5) in the tab, wherein a portion of the projection bears against a surface (4) of the tab, that faces away from the opening of the domestic appliance.
13. A telescopic rail according to one of the preceding claims characterised in that the tab (2) has an aperture (7) therethrough and at its side (11) facing towards the tab the cover (10) has a damping portion (18) which projects from the cover by more than the material thickness of the tab and is passed through the aperture in the tab.
14. A telescopic rail according to one of the preceding claims characterised in that the first rail element (1) has a support surface (6) for supporting a carrier for food to be cooked and the cover extends at least partially over the surface (4) of the tab, that faces away from the opening of the domestic appliance, wherein on the side of the tab, that faces away from the opening of the domestic appliance, the cover has a support portion (16) which rests on the support surface of the first rail element.
15. A telescopic rail according to one of the preceding claims characterised in that the first rail element (1) has a support surface (6) for supporting a carrier for food to be cooked and the cover extends at least partially over the surface (4) of the tab, that faces away from the opening of the domestic appliance, wherein on the side of the tab, that faces away from the opening of the domestic appliance, the cover has a holding portion (17) spaced from the support surface of the first rail element.

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