EP3055473A1

EP3055473A1 - Closure arrangement

Info

Publication number: EP3055473A1
Application number: EP14781070.9A
Authority: EP
Inventors: Andreas Rückert; Peter Zielke; Günther SCHMIRGER
Original assignee: Rehau GmbH; Rehau AG and Co
Current assignee: Rehau Automotive SE and Co KG
Priority date: 2013-10-10
Filing date: 2014-10-02
Publication date: 2016-08-17
Anticipated expiration: 2034-10-02
Also published as: ES2881853T3; WO2015051892A1; DE202013104589U1; EP3055473B1

Abstract

The invention relates to a closure arrangement for an opening in a wardrobe, in a cooling unit, in a building and the like, having at least one closure element arranged so as to be movable at the opening, wherein at least one free end of the closure element has at least one profile element functionally connected to a guide element, having the feature that the material of the profile element and/or the guide element includes 0.1% by weight to 30% by weight, based on the total weight of the material, of a component (K) corresponding to the general formula R¹R²R³Si-[O-Si R⁴R⁵]_n-O-SiR⁶R⁷R⁸ where R¹ to R⁸ are the same or different and are selected from the group consisting of hydrogen atoms and C₁-C₁₀-alkyl groups, and where n has a value from 1 to 8000.

Description

closure assembly

The invention relates to a closure arrangement for an opening of a cupboard cabinet, a refrigerator, a building and the like according to the features of the preamble of claim 1. Such closure arrangements are already known in the prior art.

For example, DE 102009016208 A1 discloses a closure arrangement for refrigerators. This closure arrangement has a first and a second cover part, of which at least one cover part is designed to be movable and wherein the cover parts are in a closed state in a plane.

In this sliding lid system, the guide of the movable lid part is realized via rollers which run in one or more roller conveyors. This should reduce the friction when moving a cover part and the possibility of optimal sealing and a precise cover guide be possible.

The closure assemblies are designed so that they are manually operated by the user by the respective openable lid part by hand from a closed position to an open position is movable.

A disadvantage of this closure arrangement for refrigerators is seen that the manual movement of the lid parts from a closed position to an open position, the goods in the refrigerator can indeed be removed, but that in the movement caused by the rollers used very high displacement forces for the closure elements occur that make it difficult for the user to easily or easily move the individual lid parts of the closure assembly.

Another disadvantage of the prior art closure assembly is seen in that an improvement in the movement of the lid parts through use increase the cost of such a cooling device mounted rollers with ball bearings, without the displacement forces for closure elements are significantly reduced.

A further disadvantage is that, with prolonged use, the roller conveyors can become dirty by dust or even fine-grained materials such as sugar, salt and the like entering into them and leading to an increase in the displacement forces for closure elements up to the blocking of the rollers.

Another disadvantage of the refrigerators is that for filling the behind or over positioned shelves, the staff is on the closure assembly and this burden with a high weight. Due to the weight of the people and the goods on the closure assemblies, the rollers are exposed to very high forces, which on the one hand to damage or deterioration of the rollers or the roller conveyors and on the other hand can lead to damage of the lid parts and a risk of accidents for the staff themselves ,

Another closure arrangement for cabinet furniture is disclosed in DE 29907856 U1. It is described a closure assembly for receiving sliding and sliding elements, such as blinds, shutters or sliding doors, in at least one U-shaped track on furniture with a base body attachable to the furniture profile and a connectable with this cover profile to cover the attachment of the base profile on furniture body.

This closure arrangement for generic furniture cabinets should be able to be produced inexpensively, as well as easily adaptable to the particular application and thus basically allow an option for receiving various sliding or sliding elements. This is to be realized in that the slide is formed in a separate rail member which is releasably inserted in a recess of the base profile. The base profile may have a front and a further rear recess.

A disadvantage of this guide device for cabinet furniture is seen that the provision of a base profile and a cover profile and an additional rail element leads to high manufacturing and assembly costs, as well as to a considerable logistics effort in storage. This is particularly true given the fact that different cabinet dimensions in different decors must be equipped with such guiding devices.

Another disadvantage is seen in the fact that the base profile and the associated rail element can only be used for a defined width of sliding and sliding elements.

This closure arrangement can disadvantageously also be mounted only on such cabinet furniture in which the sliding and sliding elements are movable in front of the body of the cabinet furniture. When installing sliding and sliding elements such as blinds or shutters, which should be movable within the corpuses of the cabinet furniture, these closure arrangements are not applicable.

A further disadvantage of the prior art is seen that, in particular when using sliding and sliding elements such as blinds or shutters with the closure assembly certain deflectors must be mounted, in which these sliding and sliding elements must be received in the cabinet interior, such as Guide screws or angle elements.

When using the closure assembly according to the prior art, a high assembly and Konfektionsaufwand to realize in order to realize an adaptation of the guide device to the corresponding sliding and sliding elements and the body of the cabinet furniture. This concerns both the base profile, as well as the cover profile and the separately used rail elements and also to be used at the free ends of the guide device end pieces.

Also disadvantageous is seen that the forces for displacement of the sliding and sliding elements in the closure assembly are very high and due to the abrasion of the individual elements or due to contamination caused by lubricant in the guide rails, have the same disadvantages as the closure arrangements in refrigerators ,

This is where the invention, which has set itself the task of overcoming the disadvantages of the prior art and to show a closure assembly that can be produced economically and inexpensively, the quiet, fast and gentle Closing movement of the closure elements allows and has a long life without additional maintenance.

According to the invention, this object is solved by the features of claim 1. Further advantageous embodiments of the invention are described in the subclaims.

The closure arrangement according to the invention for an opening of a cupboard furniture, a refrigerator, a building and the like with at least one closure element, which is arranged movably on the opening, wherein at least one free end of the closure element has at least one profile element operatively connected to a guide element, is characterized characterized in that the material of the profile element and / or the guide element 0, 1 wt .-% to 30 wt .-%, based on the total weight of the material has a component (K), the general formula R ¹ R ² R ³ Si - [0-SiR R ⁵ ] _n -Ö-SiR ⁶ R ⁷ R ⁸ , wherein R to R ^{8 are} identical or different from one another and are selected from the group consisting of hydrogen atoms and C 1 -C ₁₀ -alkyl groups and where n has a value of 1 to 8,000. This can advantageously be achieved that the required displacement forces for the closure elements are significantly reduced in the order of about 20 to 95%, preferably 40 to 80%.

Another advantage is seen in that the closure arrangement according to the invention has a significantly reduced wear of the individual elements. Furthermore, the closure arrangement according to the invention is designed so that R ¹ to R ⁸ in the general formula of component (K) has methyl groups (-CH ₃ ). This advantageously leads to the fact that a migration of the component (K) from the individual elements of the closure arrangement according to the invention is almost impossible.

It has also been found to be advantageous that the component (K) has a molecular weight of about 200 to 600,000 g / mol. This advantageous embodiment makes it possible to design both the profile elements and the guide elements in such a way that the required displacement forces of the closure arrangement according to the invention are very low. Also advantageous in the context of this invention is that the component (K) has a molecular weight of about 100,000 to 600,000 g / mol, in particular from about 300,000 to 600,000 g / mol. In this advantageous embodiment, the profiled elements, the guide elements, the sealing elements and the sliding elements are configured in this way. det that the displacement forces of the closure assembly according to the invention again lower and their production costs are lower.

It has also been found to be advantageous that the material of the profile element and / or the guide element has a sliding friction coefficient μ according to DIN EN

ISO 8295 from 0.01 to 0.06, preferably 0.02 to 0.05 on smooth surfaces. Thus, closure arrangements according to the invention can be made available, which can always realize an optimal and easy movement of the closure arrangement depending on the size or the weight.

In a further advantageous embodiment, the closure arrangement according to the invention is designed so that the material of the profile element and / or the guide element after about 80,000 friction movements a sliding friction μ according to DIN EN ISO 8295 from 0.01 to 0.06, preferably 0.02 to 0, 05 with smooth surfaces. The closure assembly according to the invention thus has a much higher wear resistance compared to the prior art and is further characterized by the fact that it has a long life without additional maintenance measures, without the sliding friction coefficient μ changes significantly. The closure arrangement according to the invention is further characterized in that the profile element and / or the guide element is made of a polymeric material. By polymeric material is meant materials such as polyvinyl chloride (PVC); Polyolefin, such as polypropylene (PP) or polyethylene (PE); styrene-based polymer such as polystyrene (PS) or styrene-butadiene copolymer predominantly styrene (SB) or acrylonitrile-styrene-acrylic ester copolymers (ASA) or acrylonitrile-butadiene-styrene copolymers (ABS) or styrene-acrylonitrile (SAN); Polybutylene terephthalate (PBT); Polyethylene terephthalate (PET); Polyoxymethylene (POM); Polyamide (PA); Polymethyl methacrylate (PMMA); Poly (phenylene oxide) (PPO); Polyetheretherketone (PEEK); Polyphenylene sulfide (PPS); Liquid Crystal Polymer (LCP); Polyamide-imides (PAI); Polyvinylidene fluoride (PVDF); Polyphenylsulfon

(PPSU); Polyaryletherketone (PAEK); Polyacrylonitrile (PAN); Polychlorotrifluoroethylene (PCTFE); Polyether ketone (PEK); Polyimide (PI); Polyisobutene (PIB); Polyphthalamide (PPA); Polypyrrole PPY); polytetrafluoroethylene (PTFE); Polyurethane (PUR); Polyvinyl alcohol (PVA); Polyvinyl acetate (PVAC); Polyvinylidene chloride (PVDC); and mixtures of at least two of these materials. In this case, the polymer material of the profile element and / or the guide element can be admixed with suitable fillers and / or reinforcing substances which are the same In particular, glass fibers, glass spheres but also fillers such as chalk, Teflon and the like positively influence mechanical properties. The fillers and / or reinforcing materials are contained in amounts of about 5 to 50 wt .-%, preferably 10 to 35 wt .-%, based on the total mass.

The closure arrangement according to the invention furthermore has at least one spacer element on the profile element and / or on the guide element. This makes it possible to provide a closure arrangement according to the invention which, in addition to a full-surface contact of the closure elements on the guide elements, also permits punctiform contact with even further reduced displacement forces for closure elements.

In a further advantageous embodiment of the closure arrangement according to the invention, at least one sliding element is arranged on the profile element and / or on the guide element. This advantageously leads to the fact that the displacement forces of the closure arrangement according to the invention required for the movement of the closure elements are reduced.

Another advantage of the closure arrangement according to the invention is seen in the fact that at least one sealing element is arranged on the profile element and / or on the guide element. This advantageously leads to the fact that, for example when using the closure assembly in a refrigerator, the cooled air in the interior can not escape via the closure assembly in the warm sales room.

It has also been found to be advantageous that the sealing element a gap between the profile element and the guide member hermetically and / or liquid-tight manner, which for example reduces the energy costs when using the closure assembly according to the invention in a refrigerator.

Furthermore, it proves to be advantageous that the sliding element and / or the spacer element and / or the sealing element is at least partially made of an elastic material.

It has been found to be particularly advantageous that the sliding element and / or the spacer element and / or the sealing element is made of a flexible, polymeric material comprising a mixture, the at least one na natural rubber, polyisoprene rubber, poly (styrene-co-butadiene) rubber (SBR), polybutadiene rubber (BR), poly (isoprene-co-butadiene) rubber (IBR), styrene-isoprene-butadiene rubber (SIBR), ethylene-propylene Rubber (EPR), ethylene-propylene-diene rubber (EPDM), polysulfide, isobutylene / cyclopentadiene copolymer rubber,

Isobutylene / methylcyclopentadiene copolymer rubber, nitrile rubber,

Propylene oxide polymer, star-branched butyl rubber and halogenated star-branched butyl rubber, brominated butyl rubber, chlorinated butyl rubber, star-branched polyisobutylene rubber, star-branched, brominated butyl (polyisobutylene / isoprene copolymer) rubber, poly (isobutylene-co-p-methylstyrene) and halogenated

Poly (isobutylene-co-p-methylstyrene), halogenated poly (isobutylene-co-isoprene-co-p-methylstyrene), poly (isobutylene-co-isoprene-co-styrene), halogenated poly (isobutylene-co-isoprene-co -styrene), poly (isobutylene-co-isoprene-co-a-methylstyrene), halogenated

Poly (isobutylene-co-isoprene-co-a-methylstyrene) or mixtures thereof.

This results in addition to the simple and cost-effective production of such sealing elements to optimum sealing functions and also reduced displacement forces of the closure elements.

However, it is also within the scope of the invention that the sliding element and / or the spacer element and / or the sealing element is made of a thermoplastic elastomer such as a cured elastomeric composition selected from the group of thermoplastic elastomers, for example. On olefin-based and / or urethane-based , the crosslinked olefin-based thermoplastic elastomers, the thermoplastic copolyester, the styrene block copolymers (SBS, SEBS, SEPS, SEEPS and MBS) and the thermoplastic copolyamides, the plasticized materials and mixtures thereof.

The closure arrangement according to the invention is also advantageously designed so that the material of the spacer element and / or the sliding element and / or the sealing element at least partially 0.1 wt .-% to 30 wt .-%, preferably 1 wt .-% to 15 wt. -%, based on the total weight of the material, a component (K), which corresponds to the general formula RR ² R ³ Si [0-Si R ⁴ R ⁵ ] _n -O-SiR ⁶ R ⁷ R ⁸ , wherein R ¹ to R ^{8 are the} same or different from each other and are selected from the group consisting of hydrogen atoms and CrCio-alkyl groups, wherein (n) has a value of 1 to 8,000. By this advantageous embodiment, a closure arrangement according to the invention can be made available, the individual elements are each economic and inexpensive to produce, which allow a low-noise fast and gentle closing movement of the closure elements and without additional Maintenance measures have a long life, so far known from the prior art closure arrangements.

The closure assembly according to the invention will now be described in more detail on embodiments which do not limit the invention.

Show it:

1 shows a perspective view of a cooling device with a closure arrangement according to the invention;

2 shows a sectional view of a wall of a refrigerator with a closure arrangement according to the invention;

3 shows a sectional view of a wall of a further cooling device with a closure arrangement according to the invention;

Fig. 4: perspective view of a cabinet cabinet with a closure arrangement according to the invention. 1, a closure arrangement 1 for an opening 2 of a refrigerator is shown.

The per se known cooling device has a total of four outer walls 1 1, which form each other by their rectangular arrangement the storage space for the refrigerated goods. The opening 2 of the cooling device is covered by a closure assembly 1, which consists in this embodiment of two mutually displaceable closure elements 4, which are guide-mounted in guide elements 3. The guide elements 3 are arranged in mounted on the outer walls 11 frame members 14.

The closure elements 4 are formed in this embodiment so that the arranged on the left side of the refrigerator closure element 4 consists of a frame 5, which comprises a plate 40 made of a transparent material, for example made of glass.

The closure element 4 on the right side of the refrigerator has a frame 5, which is made of four cohesively connected profile elements 9, wel- rather comprises a plate 40 made of the transparent polymeric material polycarbonate. In this exemplary embodiment, the closure elements 4 are arranged horizontally on the guide elements 3 such that they can move relative to one another, so that the closure element 4 shown on the right side of the cooling device can be moved when opening via the closure element 4 shown on the left side of the cooling device.

FIG. 2 shows a sectional view of a wall 10 of a cooling device according to FIG. 1 with a closure arrangement 1 according to the invention.

The wall 10 of the refrigerator consists of an outer wall 1 1, an inner wall 12 and an insulating element 13 arranged therebetween. At the upper narrow side of the

Wall 10, a frame member 14 is arranged, which engages in this embodiment, the free end of the outer wall 1 1 and 12 is arranged at the front end of the free end of the inner wall. The closure arrangement 1 for the opening 2 of the cooling device has two closure elements 4, which are guided on the opening 2 movable in the guide element 3. The guide element 3 is formed in this embodiment, that it has two juxtaposed, approximately U-shaped guideways 31, 32.

At the free ends of the closure element 4 profile elements 9 are arranged, which are arranged movable in the U-shaped guideways 31, 32 of the guide member 3, respectively.

The closure elements 4 are formed in this embodiment so that the profile element 9 has an approximately U-shaped receptacle for the plate 40, wherein the plate 40 is formed as a transparent glass.

In this exemplary embodiment, the closure arrangement 1 according to the invention is furthermore embodied such that the profile element 9 has a spacer element 6 on at least one of its side facing the guide element 3. This spacer element 6 is designed and arranged such that this side of the profile element 9 is arranged at a distance from the guide element 3.

Furthermore, the spacer element 6 is approximately circular in cross-section and has a thickness of about 0.5 to 2.5 mm. Over the length of the profile element 9 a plurality of juxtaposed spacer elements 6 are arranged in each case. In this embodiment, the profile element 9 is made of the polymeric material acrylonitrile-butadiene-styrene (ABS) and has about 5 wt .-%, based on the total weight of a component (K), the general formula R ¹ R ² R ^{3 is} Si - [O-Si RR ⁵ ] _n - O-SiR ⁶ R ⁷ R ⁸ , wherein R ¹ to R ^{8 are the} same and are selected from the group consisting of hydrogen atoms and C 1 -C ₁₀ -alkyl groups, where n has a value greater than 1000. In this embodiment, the component (K) further has a molecular weight of about 300,000 g / mol.

Furthermore, the closure assembly 1 according to the invention in this embodiment is formed so that the material of the spacer element 6 at least partially 1 wt .-% based on the total weight of a component (K), the general formula R ¹ R ² R ³ Si [0 -Si R ⁴ R ⁵ ] _n -O-SiR ⁶ R ⁷ R ⁸ wherein R ¹ to R ^{8 are} different from each other and selected from the group consisting of hydrogen atoms and C ¹ -C ₁₀ alkyl groups, where n is a value of greater than 1000.

The guide element 3 is made in this embodiment, the polymeric material polyvinyl chloride (PVC).

The closure element 4 of the closure arrangement 1 according to the invention is advantageously designed so that the closure elements 4 can be moved back and forth in the proper use of the cooling device with little displacement forces.

It is also advantageous in the case of the closure arrangement 1 according to the invention in this exemplary embodiment that the opening or closing of the opening 2 of the cooling device over a long period is possible without any additional maintenance measures on the closure element 4, the guide element 3 and the like.

In this exemplary embodiment, the material of the profile element 9 has a sliding friction coefficient μ according to DIN EN ISO 8295 of 0.02 for smooth surfaces.

The closure assembly 1 according to the invention is characterized by its intended use in this cooling device in that the material of the profile element 9 has a coefficient of sliding friction μ according to DIN EN ISO 8295 of 0.04 after about 80,000 friction movements. In this way, an economically and cost-producible, inventive closure assembly 1 can be realized, which has a long life without additional maintenance and in which the opening or closing of the opening 2 of the refrigerator with significantly reduced displacement forces possible. is lent. In this embodiment, a reduction of the displacement forces of the closure element 4 of about 40 to 50% can be realized.

FIG. 3 shows a sectional view of a wall 10 of a further cooling device with a closure arrangement 1 according to the invention.

In this exemplary embodiment, the cooling device has a single-walled wall 10, which has guide elements 3 which are arranged in a staircase-like manner approximately at their free end.

The closure assembly 1 is formed in this embodiment so that it has two superposed closure elements 4, which close an opening 2 of the cooling device and which are mounted displaceably in the guide element 3.

The closure assembly 1 according to the invention has two approximately identically formed closure elements 4, which have a plate 40 made of the transparent polymeric material polymethyl methacrylate (PMMA), which are arranged at their free ends in each case on a profile element 9.

The profile element 9 is formed in this embodiment in cross-section approximately U-shaped and engages with its two legs each have a free end of the plate 40 of the closure element 4th

The guide element 3 is also formed in this embodiment in cross section U-shaped and covers the profile element 9 of the closure element 4 over its entire surface. The profile element 9 of the closure element 4 is materially connected in this embodiment via known per se bonding with the plate 40 of the closure element 4 and has at its plate 40 opposite free ends a sealing element 7 and a sliding member 8. The sealing element 7 of the profile element 9 is made in this embodiment of the polymeric material polyethylene (PE) and arranged over the entire length of the profile element 9 at this. The sealing element 7 is arranged in a form-fitting manner on the profile element 9 and designed as a hollow chamber profile with a hollow chamber 70. At the opposite end of the sealing element 7 free end of the profile element 9 of the closure element 4, a sliding element 8 is arranged, which is also arranged over the entire length of the profile element 9 at this and in cross section is approximately semicircular.

The sliding element 8 has 2 wt .-%, based on the total weight of the material, of a component (K), the general formula R ¹ R ² R ³ Si [0-Si RR ⁵ ] _n -0-SiR ⁶ R ⁷ R ⁸ , wherein R ¹ -R ^{8 are the} same and are selected from the group consisting of water atoms and dC ₁₀ alkyl groups, wherein n has a value of greater than 1000. The component (K) of the material of the sliding element 8 has a molecular weight of about 400,000 g / mol.

The sealing element 7 has in this embodiment about 4 wt .-%, based on the total weight of the material, a component (K), the general formula R ¹ R ² R ³ Si [0-Si RR ⁵ ] _n -0- SiR ⁶ R ⁷ R ⁸ , wherein R ¹ -R ^{8 are} different from each other and are selected from the group of hydrogen atoms and Alkyl groups, wherein n has a value of greater than 1000. The component (K) of the material of the sealing element 7 has a molecular weight of about 500,000 g / mol.

Furthermore, in this embodiment, the guide element 3 made of the polymeric material polyvinyl chloride (PVC) and has 5 wt .-%, based on the total weight, of the material of the guide member 3, a component (K), the general formula R ¹ R ² R ^{3 is} -Si- [O-SiR ⁴ R ⁵ ] _n -O-SiR ⁶ R ⁷ R ⁸ wherein R ¹ -R ^{8 are the} same and have methyl groups (CH ₃ ), where n is greater than 1000. The component (K) of the material of the guide element 3 has a molecular weight of about 600,000 g / mol.

Due to this advantageous embodiment, the material of the guide element 3 has a sliding friction coefficient μ according to DIN EN ISO 8295 of 0.03.

Furthermore, the closure assembly 1 according to the invention in this embodiment is formed so that the material of the sliding member 8 after about 80,000 rubbing movements has a sliding friction μ according to DIN EN ISO 8295 of about 0.03 with smooth surfaces.

FIG. 4 shows a perspective view of a cabinet cabinet with a closure arrangement 1 according to the invention. The cabinet furniture has a lower floor 24 to which the side wall 21, the side wall 23 and the rear wall 25 are attached. At the lower bottom 24 opposite free ends of the side wall 21, 23 and the rear wall 25 of the topsoil 22 is arranged. The subfloor 24, the side wall 21, 23 and the topsoil 22 define an opening 2 of the cabinet furniture.

At the opening 2 of the cabinet furniture, a closure assembly 1 according to the invention is arranged, which has a closure element 4.

The closure element 4 is arranged movable in this embodiment in a guide element 3, wherein the guide element 3 is disposed both in the lower floor 24 and in the upper floor 22 of the cabinet furniture.

The closure element 4 is formed in this embodiment of a plurality of mutually movably connected second profile elements 42 and formed as known per se rolling shutter mat. The closure element 4 is arranged horizontally in the opening 2 of the cabinet furniture in the guide elements 3 movable and movable from a closed position, not shown, on the side wall 23 in the illustrated open position. The guide element 3 is formed in this embodiment in cross-section U-shaped and receives the respective free ends of the profile elements 42 of the closure element 4.

The closure arrangement 1 for the opening 2 of a cupboard furniture is designed so that the material of the guide element 3 about 5 wt .-%, based on the total weight of the material, a component (K) having the general formula

R ¹ R ² R ³ Si- [0-SiR ⁴ R ⁵ ] _n -O-SiR ⁶ R ⁷ R ⁸ , wherein R ¹ -R ³ are selected differently from each other and are selected from the group consisting of hydrogen atoms and Ci - C ₁₀ alkyl groups, wherein n has a value of greater than 1000.

The guide element 3 is made in this embodiment of the polymeric material polypropylene, wherein R ¹ -R ³ in the general formula of component (K) has methyl groups (CH ₃ ) and a molecular weight of about 100,000 g / mol.

It has turned out to be extremely advantageous that the material of the guide element 3 has about 5% by weight of the component (K), since, given intended use, consumption of the cupboard furniture and the opening or closing of the closure element 4, the material of the guide element 3 after about 80,000 friction movements still has a coefficient of sliding friction μ according to DIN EN ISO 8295 of 0.06 with smooth surfaces, while in the prior art such guide elements we- have significantly higher coefficients of sliding friction or have increased abrasive material wear.

However, it is also within the scope of the invention that the material of the profile element 42 of the closure element 4 about 10 wt .-%, based on the total weight of the material, a component (K), the general formula RR ² R ³ Si - [0-Si RR ⁵ ] _n - 0-SiR ⁶ R ⁷ R ⁸ , where R ¹ -R ^{8 are the} same or different and are selected from the group consisting of hydrogen atoms and C 1 -C 10 -alkyl groups. By the closure assembly 1 according to the invention, which can be produced economically and inexpensively, thus a quiet, fast and gentle closing movement of the closure elements 4 of cabinet furniture, refrigerators, buildings and the like is possible, which have a long life without additional maintenance.

The closure assembly 1 according to the invention is further distinguished by the fact that it has a much higher wear resistance and almost no change in the coefficient of sliding friction μ according to DIN EN ISO 8295 at a continuous load, for example, after about 80,000 friction movements is detectable.

A further advantage of the closure arrangement 1 according to the invention is that, when used as intended, in particular refrigerators by the application of detergents or chemicals no impairment of the sliding friction coefficient μ according to DIN EN ISO 8295 and the closure elements 4 even after mehrmo-atatlast load still with very small displacement forces are operable.

Claims

claims

Closure arrangement (1) for an opening (2) of a cupboard unit, a refrigerator, a building and the like, having at least one closure element (4) which is movably arranged on the opening (2), wherein at least one free end of the closure element (4) at least one, with a guide element (3) in operative connection standing profile element (9), characterized in that the material of the profile element (9) and / or the guide element (3) 0.1 wt% to 30 wt .-% , based on the total weight of the material, a component (K) having the general formula

R ¹ R ² R ³ Si - [0-SiR ⁴ R ⁵ ] _n -O-SiR ⁶ R ⁷ R ⁸ wherein R ¹ to R ^{8 are the} same or different and are selected from the group consisting of hydrogen atoms and Ci - C ₁₀ alkyl groups, wherein n has a value of 1 to 8,000.

Closure arrangement (1) according to claim 1, characterized in that R to R ⁸ in the general formula of component (K) has methyl groups (-CH ₃ ).

Closure arrangement (1) according to one of the preceding claims, characterized in that component (K) has a molecular weight of about 200 to 600,000 g / mol.

Closure arrangement (1) according to one of the preceding claims, characterized in that the material of the profile element (9) and / or the guide element (3) has a sliding friction coefficient μ according to DIN EN ISO 8295 of 0.01 to 0.06, preferably 0.02 to 0.05, on smooth surfaces.

5. closure assembly (1) according to any one of the preceding claims, characterized in that the material of the profile element (9) and / or the guide element (3) after about 80,000 friction movements a sliding friction μ according to DIN EN ISO 8295 from 0.01 to 0, 06, preferably 0.02 to 0.05, has on smooth surfaces.

6. closure assembly (1) according to any one of the preceding claims, characterized in that at least one spacer element (6) is arranged on the profile element (9) and / or on the guide element (3).

7. closure assembly (1) according to any one of the preceding claims, characterized in that on the profile element (9) and / or on the guide element (3) at least one sliding element (8) is arranged. 8. closure assembly (1) according to any one of the preceding claims, characterized in that on the profile element (9) and / or on the guide element (3) at least one sealing element (7) is arranged.

9. closure arrangement (1) according to claim 8 to 10, characterized in that the material of the spacer element (6) and / or of the sliding element (8) and / or the

Sealing element (7) at least partially 0.1 wt .-% to 30 wt .-%, based on the total weight of the material, a component (K), the general formula RR ² R ³ Si [0-Si R ⁴ R ^5] _n -0-SiR ⁶ R ⁷ R corresponds to ^8, wherein R to R ⁸ are identical or different and are selected from the group consisting of hydrogen atoms and C _\ - C ₁₀ alkyl groups, wherein n has a value of 1 to 8,000.