SE543492C2

SE543492C2 - A drawer sliding system

Info

Publication number: SE543492C2
Application number: SE1950140A
Authority: SE
Inventors: Johan Northfell; Stefan Brendel
Original assignee: Ikea Supply Ag
Priority date: 2019-02-06
Filing date: 2019-02-06
Publication date: 2021-03-09
Also published as: EP3920753A1; WO2020162821A1; SE1950140A1; CN113423307A; US20220117391A1; EP3920753A4

Abstract

A drawer sliding system (100) for a drawer (500), comprising a drawer member (200) mountable to the drawer (500) and a rail (300) fixedly mountable to an associated support (600) of a furniture (1000), the drawer member (200) comprises at least one contact surface (212), wherein the drawer member (200) is arranged to be moveable relative to the rail (300), wherein the contact surface (212) and the rail (300) are adapted for together forming a sliding connection between the drawer (500) and the associated support (600) such that the drawer (500) and the drawer member (200) are moveable in relation to the support (600) along the rail (300), wherein at least one drawer sliding system (100) attaches each drawer (500) to the support (600).

Description

A DRAWER SLIDING SYSTEM Technical Field The present invention relates to the technical field of drawers and to slidingsystems for allowing movement of the drawer in relation to a supporting structure. Theinvention also relates to a drawer comprising such a system and to a furniture comprising drawers mounted with said sliding system.

Prior Art Drawers and chest of drawers are common household items that have existedfor a long time. Usually, drawers are mounted to a support structure being a part of acabinet, a table or some sort of frame etc. To enable smooth and effortless motion of thedrawer in relation to the supporting structure are norrnally some type of guiding systemprovided. Such guiding systems are most commonly fitted with wheel rollers incooperation with some sort of rail on the drawer and/or on the supporting structure.Other examples are also known, such as telescope guiding systems but these usuallyrely on rollers as well to achieve the desired functionality. More recently has slidingsystems been suggested, which provides low friction interfaces between the drawer andits supporting structure. One example of such a sliding system is disclosed inWO20l7/042228 by the same applicant.

A common problem with existing solutions is that they are often spaceconsuming, in that they take up relatively large space on the drawer and/or on thesupporting structure. While this often provides benefits in the load capacity of thedrawer, this may result in constraints in how the drawer needs to be mounted to thesupporting structure. Additionally, existing guiding systems may in some applicationsaffect the aesthetic appearance a drawer and/or of the supporting structure to which it ismounted.

Consequently, it is desired to provide an improved drawer sliding system thatalleviates at least one of the problems described above, while providing a reliable androbust construction that is cost effective and easy to assemble for the end user.

Related prior art can be found in US 4580851.

SummagvIt is therefore an object of the invention to at least partly overcome one or more of the above-identified limitations of the prior art. In particular, it is an object to provide a drawer sliding system for a drawer, a drawer comprising such a sliding system and afurniture to Which at least one drawer is mounted using said sliding system whichalleviates some of the problems with prior art.

In a first aspect is a drawer sliding system provided, comprising a drawermember mountable to the drawer and a rail ﬁxedly mountable to an associated supportof a fumiture. The drawer member comprises at least one contact surface, and thedrawer member is arranged to be moveable relative the rail. The contact surface and therail are adapted for together forrning a sliding connection between the drawer and theassociated support such that the drawer and the drawer member are moveable in relationto the support along the rail. At least one drawer sliding system attaches each drawer tothe support. The drawer member is configured to be mounted to a rear portion of thedrawer and the drawer member via at least one contact surface is arranged to be insliding contact with the rail during the entire sliding movement of the drawer, andwherein a force from gravity excerted on the rail by the at least one contact surface isessentially constant during the entire sliding movement of the drawer. The drawermember can consequently be made smaller, thus using less material and facilitatinghiding the drawer sliding system from view even when the drawer is in an openposition. The entire sliding movement preferably includes any position of the drawer atleast when the drawer is not in or adj acent to its closed position or rearrnost positionrelative the rail.

A distance between a front end of a rail engagement portion of the drawermember and a rear end of a drawer engagement portion of the drawer member may beless than half of the length the drawer side panel, preferably approximately 1A of the thedrawer side panel. With the rear end of the drawer engagement portion mounted as farrearward on the drawer as possible, preferably adj acent to a rear panel thereof, thedrawer will be extractable to between half the length of the drawer side panel,preferably to approximately 3A of the length of the side panel.

The drawer sliding system may further comprise a stopper member mountableto a front end of the rail. The stopper member is configured to carry a part of the load ofthe drawer when the drawer is in or adj acent to its closed position relative the rail. Thestopper member will relieve some of the load from the drawer member, for instancewhen the drawer is in its closed position, improving the durability of the sliding system.

The stopper member may comprise a protrusion conﬁgured to be received in arecess in the drawer when the drawer is in or adjacent to its closed position relative the rail, the protrusion transfers part of the load of the drawer to the rail.

The stopper member may further be configured to limit an opening motion ofthe drawer and/or limit a closing motion of the drawer in relation to the rail and thedrawer member may be made in one piece.

The rail may be configured to be attached to a downward facing surface of thesupport such that the drawer is supported in a hanging manner by the engagement of thedrawer member and the rail of each sliding system being attached to the drawer.

The drawer member may be configured to be attached to an inwards facingside surface of a side panel of the drawer. The drawer member will thus not be Visiblefrom when observing the drawer from the side.

In one embodiment, the drawer member is attachable to a side surface of adrawer side panel by means of a first attachment member and a second attachmentmember receivable in corresponding openings in the side wall. The first attachmentmember is arranged on the drawer member farther away from a rear end of a drawerengagement portion and farther away from a rail engagement portion than the secondattachment member. The first attachment member is thus arranged forward of thesecond attachment member, and will be subj ected to higher loads as a result. By placingit farther away from the rail engagement portion and thus also from the rail, which areboth preferably parallel with the upper edge of the side panel, is the amount of materialin the drawer side panel that absorbs the loads increased.

The rail engagement portion may further have an oblong shape with twoopposite laterally facing longitudinal tracks into which the rail is slidingly receiVable.The longitudinal tracks facilitate transfer of Vertical loads as well as rotational forcesfrom the drawer to the rail.

Furthermore, contact surfaces may be arranged in the tracks at least at eachlongitudinal end thereof The tracks may further comprise guiding protrusions at least inthe proximity of the contact surfaces on the front end of the drawer member. Theguiding protrusions facilitates insertion of the drawer member into the rail, and preVentsdamage to contact surfaces during this process.

Further still, each track may at each end of the drawer member comprise alateral facing contact surface an upper contact surface , providing low-friction guidancein the Vertical and lateral/horizontal direction.

A guiding protrusion may be arranged at least in the proximity of the upper andlower contact surfaces on the front end of the drawer member.

In one embodiment of the drawer sliding system, the drawer member comprises wall extending from the rail engagement portion such that is arranged parallel With the side Wall When the draWer member is attached thereto. The first attachmentmember and the second attachment member protrudes from the Wall, and the Wall isessentially aligned With a center axis through the draWer member. The Wall facilitateseven load distribution/ load transfer from the first and second attachment members intothe rail engagement member, and by its abutment against the side of the draWer it alsoimproves stability of the draWer.

Further, each contact surface may be configured as a blade extending in thesliding direction, preferably the length of the blade, as seen along the sliding directionof the draWer member, is 2-50 mm, more preferably 5-30 mm.

In one embodiment, the contact area of each individual contact surface is lessthan 3 mmz, more preferably less than l.5 mmz, and most preferably less than 0.75mmz.

In one embodiment, the contact pressure in each contact surface is at least 4N/mmz, preferably at least 8 N/mmz, and more preferably at least l2 N/mmz. Preferably,the contact pressure is lower than the strain at yield of the material of the draWermember at each the contact surface.

In one embodiment, the rail comprises ledges having sliding surfaces forsliding contact With the contact surfaces of the draWer member. At least the slidingsurfaces are coated With a lacquer comprising a resin, the lacquer in tum is at leastpartly coated With a lipophilic composition coating to provide a slide layer With aloWered friction.

In a second aspect is a draWer provided, Which is configured to be attached to asupport. The draWer comprises at least one draWer sliding system according to the firstaspect.

The draWer may comprise one draWer sliding system attached to each sidepanel of the draWer, the draWer sliding systems sharing and distributing the loads of thedraWer evenly into the support.

In a third aspect is a fumiture provided comprising a support and at least onedraWer according to the second aspect mounted to the support.

In one embodiment, the fumiture is a table.

Brief Description of the DraWingsThe present invention Will be described further below by Way of example and With reference to the enclosed draWings. In the drawings: Fig. 1 shows a perspective view of a drawer comprising two drawer slidingsystems according to one embodiment, Fig. 2 shows a cross-sectional side view of a drawer a drawer sliding systemaccording to one embodiment, Fig. 3 shows a side view of a drawer member being inserted into a rail of thesliding system according to one embodiment, Fig. 4 shows a side view of a drawer member partially inserted into a rail of thesliding system according to one embodiment, Fig. 5 shows a forward View of a drawer member according to oneembodiment, Fig. 6 shows a perspective view of a stopper member being inserted into a railaccording to one embodiment, Fig. 7 shows a perspective view of a sliding system and a drawer according toone embodiment, and Fig. 8 shows a perspective view of a fumiture according to one embodiment.

Detailed Description of Embodiments The disclosed embodiments will now be described more fully hereinafter withreference to the accompanying drawings, in which certain embodiments of the inventionare shown. Like numbers refer to like elements throughout. Throughout the applicationis reference made to directions, such as forward, rearward etc. A forward direction inthe context of this application is the direction in which the drawer 500, and all theretoattached components, moves during an opening motion. Consequently, the rearwarddirection is opposite the forward and thus the direction of a closing motion of thedrawer 500.

Fig. 1 shows a drawer 500 comprising a drawer sliding system 100. The drawer500 preferably comprises a front panel 504, two side panels 502, a rear panel 506 and abottom panel 508. Typically, drawer panels are made to a large extent from wood basedmaterials such as particle board, f1bre board or solid wood. The teachings herein arehowever not limited to use only with fumiture of wood based materials but could justas well be used with for instance aluminium fumiture or stainless steel fumiture.

In a preferred embodiment is one sliding system 100 mounted to each sidepanel 502 of the drawer 500, but it is also feasible that a single drawer sliding system100 alone supports each drawer 500. The sliding system 100 is intended to be mountedto the drawer 500 and to a supporting structure 600 (shown in Fig. 8), thus supporting the draWer 500 such that it can be moved in relation to the support 600. Preferably is arail 300 of the sliding system 100 configured to be attached to a downward facingsurface 602 of the support 600 such that the draWer 500 is supported in a hangingmanner by the cooperation of the draWer member 200 and the rail 300 of each slidingsystem 100. However, it is also possible that the rails 300 are mounted to inclinedsurfaces, or to an upWard facing horizontal surface.

The rail 300 has an elongated shape and is configured to be mounted to thesupport 600 by means of a plurality of fasteners such as screWs or snap-lock fastenersetc. The rail 100 is preferably made of metal, such as aluminium or steel.

The draWer member 200 is configured to be mounted to the rear portion 512 ofthe draWer 500, each draWer member 200 being in sliding engagement With a respectiverail 300.

The draWer member 200 is preferably made in one piece out of plastic, and thesliding engagement With the rail 300 is preferably a loW-friction system such asdescribed in previous patent application WO2017/ 044032 A1, Which is incorporatedherein by reference. The rail 300 and/or the draWer member 200 may at least partiallybe coated With a lacquer comprising a resin, Wherein said lacquer in tum is at leastpartly coated With a lipophilic composition coating to provide a sliding surface/ contactsurface With a loWered friction. Examples of such surface treatments are disclosed inWO2017/044032 A1.

The draWer member 200 moves With the draWer 500 and guides this motion byits interaction With the rail 300. In Fig. 1 and Fig. 2, the draWer 500 is seen in an openposition Where the draWer members 200 are arranged close to the front end 302 of therespective rail 300. Each rail 300 may be f1tted With a stopper member 400 mounted tothe front end 302. The stopper member 400 may limit the motion of the draWer member200 in each rail 300 by its interaction With the front panel 504 and/or the draWermember 200. The stopper member 400 Will be described in further detail in relation toFigs 6 and 7.

What can be further seen in the preferred embodiment shown in Figs 1 and 2 isthat the draWer members 200, While only being mounted to the rear portion of thedraWer 500 and having an extension being signicantly less than the length of the sidepanel 502 thereof, preferably supports the full Weight of the draWer 500 When thedraWer 500 is open. The draWer member 200 comprises at least one contact surface 212,and is via at least one contact surface 212 arranged to be in sliding contact With the rail300 during the entire sliding movement of the draWer 500. As Will further elaborated on below, the drawer member 200 may comprise a plurality of contact surfaces 212. It notnecessary that all of these are in contact with the rail 300 at all times during the slidingmotion, as this varies depending on the load of the drawer 500 etc.

A force from gravity, i.e. the entire or a part of the weight of the drawer 500,excerted on the rail 300 by the at least one contact surface 212 is however essentiallyconstant during the entire sliding movement of the drawer 500. The entire slidingmovement comprises any position of the drawer at least when the drawer is not in oradj acent to its closed position relative the rail.

While it is preferred that each sliding system 100 comprises one drawermember 200 attachable to the side of the drawer 500, it is also envisoned that eachsliding system 100 may comprise more than one drawer member 200, thus distributingthe load from the drawer 500 through more drawer members 200 to the rail 300. Theforce from gravity excerted on the rail 300 by the drawer members 200 of each slidingsystem 100 would still be essentially constant during the sliding motion of the drawer500, as the drawer members 200 are fixed to and thus moves with the drawer 500.

The drawer 500 may be connected to the rail 300 only via the drawer member200 of each drawer sliding system 100 at least when the drawer 500 is not in or adj acentto its closed position relative the rail 300, i.e. during the entire sliding movement of thedrawer 500. This is benef1cial as many conventional drawer guiding systems rely on anadditional support member mounted to a forward portion of for instance a cabinet. Thesliding system 100 herein removes the need for such a support member, thus achievinga constant force on the rail 300 from the drawer member 200 during the sliding motionof the drawer 500.

Consequently, and as the drawer member 200 is mounted to a rear portion 512of the drawer 500, the drawer member 200 of each sliding system 100 needs not only toable to withstand a vertical load, but also to be able to transfer a rotational force thatmay arise due to the center of gravity of the drawer 500 possibly being located forwardof where the drawer members 200 are attached to the respective rail 300.

Fig. 3 shows a side view of the drawer member 200 as it is about to bemounted to the rail 300. The drawer member 200 may comprise a rail engagementportion 202 which is the portion of the drawer member 200 that connects to the rail 600.The length of the rail engagement portion 202 along with the contact surfaces 212arranged thereon allows it to not only absorb vertical and lateral forces, but also withstand the rotational forces mentioned above.

The rail engagement portion 202 length along with the length of the rail 300defines the distance which the drawer member 200 can be moved in relation to the rail300, and thus also the distance the drawer 500 can be moved in relation to the support600. Preferably, the length of the rail 300 is kept as short as possible to save materialand costs. Consequently, the rail 300 should essentially correspond to the length of theside panel 502 of the drawer 500 or only be slightly longer, such that the rail 300 doesnot excessively extend rearward of the drawer 500 when the drawer 500 is closed.

The drawer member 200 may further comprise a first and a second attachmentmember 206, 208 attachable to the drawer 500. The attachment members 206, 208 arepreferably in the shape of press-lock connectors having circumferential extemal ribsthat will secure the drawer member 200 to the drawer 500. The attachment members206, 208 may further be expandable by the introduction of for instance a screw orsimilar in the central opening in each member 206, 208, upon which the four sectionsinto which each attachment member 206, 208 is divided will be pushed apart andagainst the material of the drawer 500.

The first attachment member 206 and the second attachment member 208 arereceivable in corresponding openings 502c, 502d in the drawer 500, preferably in eachside wall 502 thereof Even more preferred, the openings are arranged in an inwardsfacing surface 502a (shown in Fig. l) of each side panel 502.

The first attachment member 206 is arranged on the drawer member fartheraway from a rear end 224 of the drawer engagement portion 204 and farther away fromthe rail engagement portion 202 than the second attachment member 208. In otherwords, the attachment members 206, 208 are arranged such that when the drawermember 200 is mounted to the rail 300, the first attachment member 206 is arrangedfarther away from a rear end 506 of the rail 300 and farther away from the railengagement portion 202 than the second attachment member 208.

It is the first attachment member 206 that will be subjected to the largest loadfrom the drawer 500, as it is arranged forward of the second attachment member 208.With the drawer member 200 attached to a side surface 502a, 502b of the side panel 502will the first attachment member 206, in most load cases, subject the side panel 502with a reaction force directed towards the rail 300. Depending on the material used inthe side panel 502, the side panel 502 itself may be the critical component in terms ofthe amount of load that the drawer 500 can be subj ected to. By arranging the first attachment member 208 at a larger distance from the rail attachment member 202 is the amount of draWer side Wall 502 material that absorbs forces from the first attachmentmember 206 increased.

The second attachment member 208 is less likely to be subj ected to such highvertical forces in the direction of the rail 300, and can consequently be arranged closerto the rail engagement portion 202. The varying distance from the rail engagementportion 202 of the first and second draWer attachment members 206, 208 further bringsthe beneficial effect of reducing or to some extent optimizing the amount of materialrequired for manufacturing each draWer member 200.

Preferably is each draWer attachment member 206, 208 protruding from a Wall2l0 extending from the rail engagement portion 202. The Wall 2l0 is conf1gured to bearranged parallel With the side Wall 502 of the draWer 500 When the draWer member 200is attached thereto. The Wall 2l0 and the draWer attachment members 206, 208 togetherforms the draWer engagement portion 204 of the draWer member 200, i.e. the portion204 of the draWer member 200 being configured to form the attachment to the draWer500.

It is to be realized that While the Wall 2l0 is shown as a single common Wall toWhich both attachment members 206, 208 are attached, the Wall 2l0 may also bedivided in tWo separate Walls each comprising one of the attachment members 206, 208.

The Wall 2l0 is preferably arranged aligned With a center axis A, a centerline,through the draWer member 200. This is benef1cial in terms of the load capacity andstructural integrity of the draWer member 200.

However, it is also envisioned that the Wall may be offset from the center axisA in the direction opposite the protrusion of the first attachment member 206 and thesecond attachment member 208. The rail engagement portion 202 of the draWer member200, and also the rail 300, Will consequently be arranged at least partially above the sideWall 502 of the associated draWer 500. This is benef1cial in that it gives the draWer 500and the associated sliding system(s) l00 an integrated appearance.

Further still, the distance L defined between the front end 220 of the railengagement portion 220 and a rear end 224 of the draWer engagement portion 204defines the maximum extraction of the draWer 500 in relation to the rail 300. Thedistance L should be less than half the length of the draWer side panel 502, preferablyapproximately 1A of the length thereof. The distance L essentially corresponds to theportion of the draWer side panel 502, or the draWer 500 as a Whole, that cannot beextended outside of the front end 302 of the rail 300.

The drawer member 200 should preferebly be mounted to the drawer 500 suchthat the rear end 224 is as close as possible to the rear panel 506, while the front end220 will limit the movement of the drawer member 200 in relation to the rail 300 by itscontact with the stopper member 400.

With a reduction in the distance L will the drawer member 200 and theassociated drawer 500 be able to be extracted, or opened, further in relation to the rail300. However, the drawer member 200 and the rail 300 will consequently also beexcerted to higher rotational forces for a given weight of the drawer 500 as the distancefrom the first attachment member 206, which is attached to the wall 2l0, to the rearpanel 506 decreases.

The rail engagement portion 202 of the drawer member 200 must transfer theloads of the drawer 500 to the rail 300 and it consequently has an oblong shape with twoopposite laterally facing longitudinal tracks 2l4 into which the rail 300 is slidinglyreceivable. The oblong shape of the rail engagement portion 202 and the longitudinallaterally facing tracks 2l4 provides secure guiding of the sliding motion of the drawer500. The rail engagement portion 202 may have a rectangular cross-sectional shape as isseen Fig. 5, but other shapes are also possible.

In one embodiment, the material of the rail engagement portion 202 betweenthe contact surfaces 2l2 on the respective ends 220, 222 of the drawer member 200 isomitted. This forms a rail engagement portion 202 that is discontiuous, and in which thetracks 2l4 are only present at the front end 220 and the rear end 222 of the drawermember 200. The material needed for manufacturing of the drawer member 200 canthus be reduced.

At each longitudinal end 220, 222, i.e. the front end 220 and the rear end 222,of the rail engagement portion 202 are the, preferably raised, contact surfaces 2 l2arranged, which are conf1gured to be in sliding engagement with the rail 300. Thecontact surfaces 2l2 are preferably of the type disclosed in WO20l7/044032 Al,forrning individual contact points between the drawer member 200 and the rail.

As is also visible from Fig. 5, each track 2l4 may at each end 220, 222 of thedrawer member 200 comprise a lateral facing contact surface 2l2, a lower contactsurface and an upper contact surface. The upper and lower contact surfaces 2l2 arepreferably opposite and vertically facing.. The lateral facing contact surfaces 2l2 guidesthe movement of the drawer 500 in the lateral or horizontal direction, while the upperand lower contact surfaces 2l2 carries the vertical load as well as the rotational loads that the drawer member 200 may be subj ected to. ll The contact surfaces 212 are configured to interact with the rail 300, morespecifically with oppositely arranged ledges 306 thereof. The rail 300 is preferablyhollow having an essentially rectangular cross-sectional shape. The ledges 306 areformed by a longitudinal slit along the length of the rail 300 on the side intended to facethe drawer 500, such that the rail engagement member 202 can be inserted into the rail300 with the ledges 306 being arranged in a respective track 214.

The ledges 306 may have sliding surfaces 310 (shown in Fig. 6) for slidingcontact with the contact surfaces 212 of the drawer member 200. The sliding surfaces310 on the ledges 306 may be coated with a lacquer comprising a resin, the lacquer intum is at least partly coated with a lipophilic composition coating to provide a slidelayer with a lowered friction. As mentioned, such surface treatments are describedfurther in WO2017/044032 A1. The sliding surfaces 310 may be arranged on theupward facing and/or on the downward facing and/or on the laterally facing surface ofeach ledge 306.

The raised contact surfaces 212 are susceptible to being damaged duringinsertion of the rail engagement portion 202 into the rail 300. To mitigate this may thetracks 214 comprise guiding protrusions 218 at least in the proximity of the contactsurfaces 212 on the front end 220 of the drawer member 200. The guiding protrusions218 are configured to steer the ledges 306 of the rail 300 such that they, during insertionof the drawer member 200, does not cause damage to the contact surfaces 212.Preferably, the guiding protrusions 218 has a height from the surrounding surface of thetracks 214 which is less than the height of the contact surfaces 212.

Material of the rail engagement member 202 between the guiding protrusions218 on the front end 220 and the contact surfaces and/or the guiding protrusion on therear end 222 may be omitted to form a discontinuous rail engagement portion 202, asdescribed above.

In Figs 3 and 4 it is shown that the guiding protrusions 218 are arranged to therear of and in close proximity to the contact surfaces 212 on the front end 220 of the railengagement portion 202. These protect the forward contact surfaces 212 when thedrawer member 200 is inserted into the front end 302 of the rail 300. Naturally, guidingprotrusions 218 may be arranged also, or instead, forward of and in close proximity tothe contact surfaces 212 on the rear end 222 of the rail engagement portion 202. Thesewill protect the rear contact surfaces 212 when the drawer member 200 is inserted intothe rear end 302 of the rail 300. The guiding protrusions 218 may also be arranged directly adj acent to the respective contact surfaces 212. 12 What is also Visible is that the guiding protrusions 218 are preferably ramp-shaped having an increasing height towards the contact surface 212 which it is arrangedin close proximity of, further facilitating insertion of the drawer member 200 into therail 300.

Furthermore, the tracks 214 may comprise chamfered surfaces 216 on the frontend 220 and/or on the rear end 222 of the rail engagement portion 202. The chamferedsurfaces 216 facilitates insertion of the drawer member 200 into the rail 300.

Tuming now to Figs 6 and 7, which shows the stopper member 400 which inone embodiment is mounted to the rail 300 of each sliding system 100. The stoppermember 400 is made from a material having elastic properties such as a polymericmaterial e.g. plastic and has a shape essentially corresponding to the shape of the rail300 when observed from the front.

Preferably, the stopper member 400 is mountable to the front end 302 of therail 300 in a snap-locking manner. The stopper member 400 thus comprises two lateralprotrusions 404 being arranged on flexible walls 404. The protrusions 404 are partlyramp-shaped towards the insertion direction into the rail 300. I.e. the protrusions 404have a tapering shape towards the insertion direction into the rail, as visible whenobserved from above or below. The ramp-shape of the protrusions 404 will cause thewalls 406 to elastically deforrn upon insertion of the stopper member 400 into the rail300, and when the protrusions 404 reach the corresponding openings 308 in the rail 300will the walls 406 resiliently force the protrusions 404 into a locking engagement withthe openings 308.

The stopper member 400 is configured to limit the rearward or closing motionof the drawer 500 by its contact with the front panel 504 thereof. This may alsofacilitate assembly of the sliding system 100, as the stopper members 400 will bepushed into the correct locked position when the drawer 500 is closed.

The stopper members 400 will furtherrnore also limit the forward or openingmotion of the drawer 500. The front end 220 of the rail engagement portion 202 on thedrawer member 200 will come into contact with the walls 406, preventing the drawer500 from unintentionally becoming detached from the rail 300.

Two protrusions 408 may also be provided on the side of the stopper member400 intended to face the front end 302 of the rail 300. The protrusions 308 has a shapeessentially corresponding to the interior of the rail 302, aligning the stopper member400 therewith. 13 In one embodiment, the stopper member 400 is configured to carry a part of theload of the drawer 500 when the drawer 500 is in or adjacent to its closed positionrelative the rail 300. The stopper member 400 may for this purpose comprise aprotrusion 402 configured to be received in a recess 510 in the drawer 500, morespecifically the front panel 504, when the drawer 500 is in or adjacent to its closedposition relative the rail 600. Consequently, the protrusion 402 may transfer part of theload of the drawer 500 to the rail 300 and the protrusions 408 by their interaction withthe rail 300 will facilitate this. The protrusion 402 also provides improved alignment ofthe drawer 500, especially the front panel 504 thereof, in relation to the support 600 orto other drawers 500 in for instance a chest of drawers.

In the embodiment referred to above, the full weight of the drawer 500 willonly have to be supported by the drawer members 200 when the drawer 500 is not in, orclose to, its closed position in relation to the rail 300. In other words, the force fromgravity excerted on the rail 300 by the at least one contact surface 212 is essentiallyconstant when the drawer 200 is not in or adj acet to its closed position relative the rail300. When the drawer 500 is in its closed position or sufficiently close to its closedposition to allow the protrusion 402 to be received in the recess 510, this interaction willalleviate some of the load on the rail 300 from the contact surface(s) 212 on the drawermember(s) 200. This is benef1cial as drawers 500 are usually kept closed when not inuse, which means that the drawer member 200 will be alleviated of some of the load ofthe drawer 500 for substantial periods of time, improving the durability of the slidingsystem 100.

Tuming now to Fig. 8, in which a fumiture 1000 in the shape of a table isshown. The table 1000 comprises a drawer 500 being attached to the tabletop whichthus forms the support 600 for the drawer 500. A table 1000 is shown, but the teachingsherein are also applicable to for instance cabinets and other types of fumiture as well.

As can also be seen, the drawer 500 is attached in a hanging manner below thetabletop 600, such that the rails 300 are attached to a downward facing surface 602.Preferably are two drawer sliding systems 100 provided for attaching the drawer 500 tothe tabletop 600, one attached to each side panel 502 of the drawer 500 respectively.

It should be mentioned that the inventive concept is by no means limited to theembodiments described herein, and several modifications are feasible without departingfrom the scope of the appended claims. In the claims, the term “comprises/comprising”does not exclude the presence of other elements or steps. Additionally, although individual features may be included in different claims, these may possibly 14 advantageously be combined, and the inclusion in different clain1s does not iniply that acombination of features is not feasible and/or advantageous. In addition, singularreferences do not exclude a plurality. The terrns “a”, “an”, “f1rst”, “second” etc. do notpreclude a plurality. Reference signs in the clain1s are provided nierely as a clarifying example and shall not be construed as liniiting the scope of the clainis in any Way.

Claims

1. A draWer sliding system (100) for a draWer (500), comprising a draWermember (200) mountable to the draWer (500) and a rail (3 00) fixedly mountable to anassociated support (600) of a furniture (1000), the draWer member (200) comprises atleast one contact surface (212), Wherein the draWer member (200) is arranged to bemoveable relative to the rail (300), Wherein the contact surface (212) and the rail (300)are adapted for together forrning a sliding connection between the draWer (5 00) and theassociated support (600) such that the draWer (5 00) and the draWer member (200) aremoveable in relation to the support (600) along the rail (300), Wherein at least onedraWer sliding system (100) attaches each draWer (500) to the support (600),characterized in that the draWer member (200) comprises a first and a secondattachment member (206, 208) attachable to the draWer (5 00), by Which the draWermember (200) is configured to be mounted to a rear portion (512) of the draWer (500),Wherein the draWer member (200) via at least one contact surface (212) is arranged tobe in sliding contact With the rail (3 00) during the entire sliding movement of thedraWer (5 00), and Wherein a force from gravity exerted on the rail (3 00) by the at leastone contact surface (212) is essentially constant during the entire sliding movement ofthe draWer (5 00) as the draWer member (200) is fixed to and thus moves With the draWer(5 00).

2. DraWer sliding system according to claim 1, Wherein a distance (L) betweena front end (220) of a rail engagement portion (202) of the draWer member (200) and arear end (224) of a draWer engagement portion (204) of the draWer member (200) is lessthan half of the length the draWer side panel (5 02), preferably approximately 1A of thethe draWer side panel (502).

3. DraWer sliding system (100) according to claim 1 or 2, further comprising astopper member (400) mountable to a front end (3 02) of the rail (3 00), Wherein thestopper member (400) is configured to carry a part of the load of the draWer (500) Whenthe draWer (5 00) is in or adj acent to its closed position relative the rail (3 00).

4. DraWer sliding system (100) according to claim 3, Wherein the stoppermember (400) comprises a protrusion (402) configured to be received in a recess (510) in the draWer (500) When the draWer (500) is in or adjacent to its closed position relative 16 the rai1 (3 00), Wherein the protrusion (402) transfers part of the load of the draWer (500)to the rai1 (300).

5. DraWer s1iding system (100) according to c1aim 3 or 4, Wherein the stoppermember (400) is configured limit an opening motion of the draWer (5 00) and/or limit ac1osing motion of the draWer (5 00) in relation to the rai1 (3 00).

6. DraWer s1iding system (100) according to any one of the preceding c1aims, Wherein the draWer member (200) is made in one piece.

7. DraWer s1iding system (100) according to any one of the preceding c1aims,Wherein the rai1 (300) is configured to be attached to a doWnWard facing surface (602)of the support (600) such that the draWer (5 00) is supported in a hanging manner by theengagement of the draWer member (200) and the rai1 (300) of each s1iding system (100)being attached to the draWer (500).

8. DraWer s1iding system (100) according to any one of the preceding c1aims,Wherein the draWer member (200) is conf1gured to be attached to an inWards facing sidesurface (502a) of a side pane1 (502) of the draWer (500).

9. DraWer s1iding system (100) according to c1aim 7 or 8, Wherein the draWermember (200) is attachable to a side surface (502a, 502b) of a draWer side pane1 (502)by means of the first attachment member (206) and the second attachment member(208) receivable in corresponding openings (502c, 502d) in the side Wa11 (502), andWherein the first attachment member (206) is arranged on the draWer member (200)farther away from a rear end (224) of a draWer engagement member (204) and farther away from a rai1 engagement portion (202) than the second attachment member (208).

10. DraWer s1iding system (100) according to any one of the preceding c1aims, Wherein the rai1 engagement portion (202) has an ob1ong shape With two opposite 1atera11y facing 1ongitudina1 tracks (214) into Which the rai1 (3 00) is s1iding1y receivable.

11. DraWer s1iding system (100) according to c1aim 10, Wherein the contactsurfaces (212) are arranged in the tracks (214) at 1east at each 1ongitudina1 end (220,222) thereof, and Wherein the tracks (214) comprises guiding protrusions (218) at 1east 17 in the proximity of the contact surfaces (212) on the front end (220) of the drawermember (200).

12. Drawer sliding system (100) according to claim 10 or 11, wherein eachtrack (214) at each end (220, 222) of the drawer member (200) comprises a lateralfacing contact surface (212), an upper contact surface (212) and a lower contact surface(2 12).

13. Drawer sliding system (100) according to claim 12, wherein a guidingprotrusion (218) is arranged in at least in the proximity of the upper and lower contactsurfaces (212) on the front end (220) of the drawer member (200).

14. Drawer sliding system (100) according to claim 9, further comprising awall (210) extending from the rail engagement portion (202) such that is arrangedparallel with the side panel (5 02) when the drawer member (200) is attached thereto,wherein the first attachment member (206) and the second attachment member (208)protrudes from the wall (210), and wherein the wall (210) is essentially aligned with acenter axis (A) through the drawer member (200).

15. Drawer sliding system (100) according to any one of the preceding claims,wherein the each contact surface (212) is configured as a blade extending in the slidingdirection, preferably the length of the blade, as seen along the sliding direction of the drawer member (200), being 2-50 mm, more preferably 5-30 mm.

16. Drawer sliding system (100) according to any one of the preceding claims,wherein the contact area of each individual contact surface (212) being less than 3 mmz, more preferably less than 1.5 mmz, and most preferably less than 0.75 mmz.

17. Drawer sliding system (100) according to any one of the preceding claims,whererin the contact pressure in each contact surface (212) is at least 4 N/mmz,preferably at least 8 N/mmz, and more preferably at least 12 N/mmz, and whereinpreferably the contact pressure is lower than the strain at yield of the material of the drawer member (200) at each the contact surface (212). 18

18. A draWer sliding system (100) according to any one of the precedingclaims, Wherein the rail comprises ledges (306) having sliding surfaces (310) for slidingcontact With the contact surfaces (212) of the draWer member (200), Wherein at least thesliding surfaces (310) being coated With a lacquer comprising a resin, Wherein saidlacquer in turn is at least partly coated With a lipophilic composition coating to provide a slide layer With a loWered friction.

19. A draWer (500) configured to be attached to a support (600), the draWer comprising at least one draWer sliding system (100) according to claim 1.

20. DraWer (500) according to claim 19, comprising one draWer sliding system(100) attached to each side panel (502) of the draWer (500).

21. A fumiture (1000) comprising a support (600) and at least one draWer (500)according to claim 19 mounted to the support (600).

22. Fumiture (1000) according to claim 21, Wherein the fumiture (1000) is atable.