WO2022038569A1

WO2022038569A1 - Storage device with vertically movable curtain and kit for attaching vertically movable curtain to storage device

Info

Publication number: WO2022038569A1
Application number: PCT/IB2021/057667
Authority: WO
Inventors: Stephanie Wong
Original assignee: Conteyor International Nv
Priority date: 2020-08-20
Filing date: 2021-08-20
Publication date: 2022-02-24
Also published as: BE1028553B1; BE1028553A1

Abstract

The present invention relates to a device (25) for storing components comprising a number of upper horizontal frame members (27), a number of lower horizontal frame members (26) and a number of vertical frame members (28), and a vertically movable flexible curtain (24), comprising a bottom edge (36) and a top edge (35), wherein the flexible curtain comprises a number of spaced apart sliding elements (5) on opposite side edges of the flexible curtain, located transversely to the bottom edge and top edge, wherein the sliding elements on a single side edge of the flexible curtain are slidably fixed in a longitudinal guide channel (10) of a guide rail, (6) wherein the guide rail is fixed to a vertical frame member and wherein the guide channel is at least partially coated with a polymer insert (12) or a coating, applied during a painting and/or anodising process. The invention also relates to a kit for attaching a vertically movable flexible curtain to a storage device.

Description

STORAGE DEVICE WITH VERTICALLY MOVABLE CURTAIN AND KIT FOR ATTACHING VERTICALLY MOVABLE CURTAIN TO STORAGE DEVICE

TECHNICAL FIELD

The invention relates to a device for storing components.

In a second aspect, the invention also relates to a kit for attaching a vertically movable flexible curtain to a storage device.

PRIOR ART

Such a device is known from US 20080047917, among others. US '917 describes a rack for storing components that can be loaded laterally. The rack comprises a rigid open frame, a matrix of side-access storage bins and a flexible curtain to protect the contents of the storage bins from dust and contamination. The flexible curtain falls down from the top of the frame and comprises multiple scattered guide assemblies, the ends of which are movable in guide rails, placed on vertical portions of the frame. A flexible band attached to the top of the curtain is used to influence the vertical movement of the curtain.

This known device has the following drawbacks or problems. The guide assemblies comprise tubular profiles extending through the flexible curtain from a first guide rail to an opposing second guide rail. These tubular profiles increase the weight of the flexible curtain, which is detrimental during the closing of the curtain, and increase the volume of the flexible curtain in the lowered position, leaving a part at the bottom of the rack shielded by the flexible curtain. The tubular profile is necessary to ensure that the guide assemblies are correctly positioned in the guide rail and do not block. However, due to the use of the tubular profile, the guide assemblies are susceptible to blocking when the flexible curtain is not manipulated in the centre. The use of the flexible band is disadvantageous in that it is attached in the middle at the top of the flexible curtain and in a lowered position it runs overthe full height of the open frame. This impedes the loading and unloading of the rack.

DE 20 2019 104 028 describes a guide rail and a transport container. WO 2017/076 516 discloses a guide rail having an intermediate material and a container provided with such a guide rail.

The present invention aims to solve at least some of the above problems or drawbacks.

SUMMARY OF THE INVENTION

In a first aspect, the present invention relates to a device according to claim 1.

The main advantage of a device according to the present invention is that the device comprises a flexible curtain, wherein at opposite side edges of the flexible curtain a number of sliding elements are spaced apart from each other, wherein the sliding elements are slidably fixed in a longitudinal guide channel of a guide rail, and wherein the guide channel is at least partially provided with a polymer insert or coating applied during a painting and/or anodising process. The polymer insert or coating lowers the friction between the sliding elements and the guide rail, allowing the sliding elements to move properly in the guide rail and making the flexible curtain easy to open. The low friction also makes it difficult for the sliding elements to block, making it unnecessary to apply tubular profiles that extend through the flexible curtain from a first sliding element in a first guide rail to an opposite second sliding element in a second guide rail. This results in a light and flexible curtain. Because the flexible curtain does not comprise tubular profiles, it takes up little space when lowered, so only a limited area of the interior is covered by the flexible curtain. An additional advantage is that the sliding elements do not block when the flexible curtain is not manipulated in the middle. The weight of the flexible curtain is so low that the curtain can be moved vertically without additional aids, so that loading and unloading of the device is not hindered by these aids, such as a flexible belt from the prior art.

Preferred embodiments of the device are set out in claims 2 to 13.

In a second aspect, the present invention relates to a kit according to claim 14. This kit has the advantage, among others, that a storage device can be equipped with a vertically movable flexible curtain with the aid of the kit, having the same advantages as a device according to the first aspect. This is particularly advantageous for the replacement of a flexible curtain according to the prior art, or for the protection of components in a storage device that does not comprise a flexible curtain. Preferred embodiments of the method are described in dependent claim 15.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 shows a cross-section of a guide rail according to an embodiment of the present invention.

Figures 2A-2B show a perspective view of a guide rail according to an embodiment of the present invention, further provided with an insert, a sliding element and a blocking element.

Figure 3 shows a perspective view of a device according to an embodiment of the present invention, with the movable flexible curtain in a closed position.

Figure 4 shows a perspective view of a device according to an embodiment of the present invention, with the movable flexible curtain in an open position.

Figure 5 shows a detail reproduction of sliding elements of a device according to an embodiment of the present invention, with the movable flexible curtain in a closed position.

Figure 6 shows a detail reproduction of sliding elements of a device according to an embodiment of the present invention, with the movable flexible curtain in an open position.

DETAILED DESCRIPTION

Unless otherwise defined, all terms used in the description of the invention, including technical and scientific terms, have the meaning as commonly understood by a person skilled in the art to which the invention pertains. For a better understanding of the description of the invention, the following terms are explained explicitly.

In this document, 'a' and 'the' refer to both the singular and the plural, unless the context presupposes otherwise. For example, 'a segment' means one or more segments. The terms 'comprise', 'comprising', 'consist of', 'consisting of', 'provided with', 'include', 'including', 'contain', 'containing', are synonyms and are inclusive or open terms that indicate the presence of what follows, and which do not exclude or prevent the presence of other components, characteristics, elements, members, steps, as known from or disclosed in the prior art.

Quoting numerical intervals by endpoints comprises all integers, fractions and/or real numbers between the endpoints, these endpoints included.

In a first aspect, the invention relates to a device for storing components.

According to a preferred embodiment, the device comprises a number of upper horizontal frame members, a number of lower horizontal frame members and a number of vertical frame members, wherein the upper and lower horizontal frame members are connected by the vertical frame members to form a rigid frame.

For example, a frame member is a metal, wood or plastic profile having a rectangular, round or other suitable cross-section. A frame member is, for example, a metal, wooden or plastic plate, whether or not layered. It will be apparent to one skilled in the art that the rigid frame can be formed by a combination of profiles, plates or other suitable elements.

The rigid frame is part of a beam-shaped or cube-shaped volume in which components can be stored. The lower frame members are part of a base, the upper frame members are part of a roof of the device. The base and roof are preferably closed surfaces for protecting the stored components from dust and contamination. The base is connected to the roof at least in two opposite corners along the same edge of the base by means of a vertical frame member. Preferably, the base is connected to the roof at each corner of the base by a vertical frame member. The base, the roof and connecting vertical frame members, which connect the base and the roof, at opposite corners along the same edge of the base, frame a side wall.

The device comprises a vertically movable flexible curtain, comprising a bottom edge and a top edge, wherein the flexible curtain is mounted in or on a plane formed by an upper frame member, a lower frame member and connecting vertical frame members. The flexible curtain can be transparent, opaque or semi-transparent. The flexible curtain may be formed of textile. Preferably the flexible curtain is coated. The flexible curtain may also be formed in one piece from a flexible plastic. The flexible curtain is preferably mounted in the plane so that it is protected by the rigid frame. The flexible curtain comprises a plurality of spaced sliding elements on opposite side edges. The side edges are situated transversely to the bottom edge and top edge of the flexible curtain. The sliding elements on a single side edge of the flexible curtain are slidably fixed in a longitudinal guide channel of a guide rail. To this end, the sliding elements comprise a foot that engages within the guide channel. The guide rail is fixed on a connecting vertical frame member. Thus, the device comprises at least two guide rails, at least one on each side edge of the flexible curtain, which are attached to opposite connecting vertical frame members.

The guide rail preferably extends in a longitudinal direction. In this regard, the guide rail may have a cross-section, generally invariant between the two ends thereof. Each transverse direction relative to the guide rail may refer to a direction contained in a plane perpendicular to the said longitudinal direction. The guide rail may comprise an extruded rail profile. The guide rail may comprise, for example, an aluminium or a composite extruded rail profile.

The guide rail encloses or clasps the longitudinal guide channel. According to a nonlimiting example, the cross-section of the guide rail may comprise two arms that clasp the guide channel. These arms are further separated by a slotted opening. The arms enclose the sliding elements within the guide channel. Preferably, the arms thereby prevent removal of the sliding elements from the guide channel, through its slotted opening, in the direction of the flexible curtain. This slotted opening is sufficiently narrow for this purpose. The slotted opening is narrower than the foot of a sliding element. The sliding elements extend through the slotted opening. For example, the guide rail may comprise a substantially U-shaped or C-shaped crosssection.

Because the sliding elements are slidably mounted in the guide channel, the sliding elements are fixed in the guide rail and at the same time able to slide along the guide channel. Of course, a certain tolerance may apply to the dimensions of the sliding element.

The sliding elements may be fixed directly within the guide channel. In this case, the guide channel is at least partially coated. The guide channel may be fully coated. The coating is applied during a painting and/or anodising process. The coating is applied in a layer with a thickness between 5 and 200 micrometres, preferably between 10 and 150 micrometres. The coating may comprise a polymer such as polytetrafluoroethylene (Teflon), WS2 (Tungsten disulphide) or a paint with lubricant. The use of the coating allows a sliding element to slide along the guide channel with little friction.

Alternatively, the sliding elements may be fixed in an insert provided within the guide channel. The insert is friction-reducing. The insert does not have to cover the entire length of the guide channel. The insert can cover the entire length of the guide channel. The insert may comprise one or more portions. The insert encloses or clasps an insert channel. The sliding elements are fixed slidingly inside the insert channel. The foot of the sliding elements engages within the insert channel. The insert may comprise two arms, separated by a slotted opening from the insert, and enclosing the sliding elements within the insert channel. Preferably, the insert thereby prevents removal of the sliding elements from the insert channel and thus the guide channel, through its slotted opening, in the direction of the flexible curtain. This slotted opening is sufficiently narrow for this purpose. The slotted opening is narrower than the foot of a sliding element. The insert preferably has a cross-section that is substantially unchanging along its length. The insert comprises a polymer. According to a non-limiting embodiment, the insert comprises a polymer selected from polyolefins, such as high-density polyethylene (HDPE), ultra-high molecular weight polyethylene (UHMWPE), medium-density polyethylene (MDPE), polypropylene, polyurethane, polystyrene, cross-linked polyethylene (PEX or XLPE), polyoxymethylene (POM), or lubricated or modified versions of any of the above polyolefins to create lower coefficients of friction.

The kinetic friction coefficient between the coating in the guide channel and the sliding element or between the polymer of the insert and the sliding element is between 0 and 0.12 in dry conditions. Preferably, the kinetic friction coefficient is between 0 and 0.1.

The flexible curtain forms a movable closure of a side wall of the device, the flexible curtain having an open and a closed position. The coating or polymer insert reduces the friction between the sliding elements and the guide rail, allowing the sliding elements to move properly in the guide channel of the guide rail and making the flexible curtain easy to open. The low friction also makes it difficult for the sliding elements to block, making it unnecessary to apply tubular profiles that extend through the flexible curtain from a first sliding element in a first guide rail to an opposite second sliding element in a second guide rail. This results in a light and flexible curtain. Because the flexible curtain does not comprise tubular profiles, it takes up little space when lowered, so only a limited area of the interior is covered by the flexible curtain. An additional advantage is that the sliding elements do not block when the flexible curtain is not manipulated in the middle. Due to the very low kinetic friction coefficient between the sliding elements and the coating or the insert, the flexible curtain slides almost automatically under the influence of gravity to the lowered position after opening.

According to an embodiment, the flexible curtain is attached at the bottom edge to a lower frame member of a plane formed by an upper frame member, a lower frame member, and connecting vertical frame members. This is advantageous when closing the curtain, moving the top edge towards the upper frame member of the plane to avoid the bottom edge moving up with it and not closing the plane.

According to an embodiment, the sliding elements are spaced at regular intervals along a side edge. This is advantageous for evenly distributing a load on the flexible curtain over the various sliding elements. Preferably, sliding elements on an opposite side edge are distributed along the opposite side edge such that a line through a sliding element on a side edge and the nearest sliding element on the opposite side edge is parallel to the top edge of the flexible curtain.

According to an embodiment, the device comprises at least two opposite side walls which can be closed with the aid of a flexible curtain. The flexible curtain is according to the above-described embodiment.

According to a further embodiment, all side walls of the device can be closed by means of a flexible curtain.

According to an embodiment, the sliding elements comprise an eye, wherein the sliding elements are attached to the flexible curtain by means of loops through the eye. The eye is a part of the sliding element that extends through the slotted opening. A loop is formed from a strip of textile or a piece of string, with the strip of textile or the piece of string attached to both ends of the flexible curtain. The loops are sewn, glued, stapled, riveted or bolted to the flexible curtain. Alternatively, the loops are removably attached to the flexible curtain. For example, the loops are removably attached to the curtain by means of press-studs or hook and loop fastener. Preferably, the loops are treated with a water-resistant and abrasion-resistant coating. Loops are advantageous for attaching the sliding elements to the flexible curtain because when the flexible curtain is lowered, the loops are sufficiently deformable to cause the flexible curtain to fold accordion-like.

According to one embodiment, both ends of a loop are attached to the flexible curtain at the same height. This is advantageous because both ends can be attached to the flexible curtain using the same stitching, staple, rivet or bolt and nut.

According to another embodiment, both ends of a loop are attached to the flexible curtain at different heights. Because both ends of the loop are attached to the flexible curtain at different heights, if the distance between the flexible curtain and the sliding element is the same, the loop has a larger surface area than a loop with both ends attached to the flexible curtain at the same height. Due to the larger surface of the loop, the loop can be twisted more easily. This is advantageous for minimising torsional force through the loop on the sliding element. If the loop is small and therefore stiff, the loop would exert a greater torsional force on the sliding element, which would result in the sliding elements sliding less smoothly in the guide rail.

According to a further embodiment, the opening of the eye of the sliding element is located in a plane transverse to the plane of the flexible curtain. This is advantageous for obtaining a compact flexible curtain in the lowered position, so that only a limited part of the interior is shielded by the flexible curtain. Regardless of the size of the eye opening, the sliding elements can be stacked compactly on top of each other.

According to an alternative embodiment, the eye is rotatably mounted. The eye is rotatable with respect to the foot of the sliding element, enclosed in the guide channel. This is advantageous in that, independent of the size of the loop, the flexible curtain can readily fold alternately in a first and second direction from a substantially vertical to a substantially horizontal position.

It will be apparent to one skilled in the art that in this embodiment the eye can also be attached directly to the flexible curtain, without the use of loops. In this case, the eye may be replaced by other suitable elements, such as a hook hooked into an opening of the flexible curtain, or a plate stapled, sewn, glued, bolted or riveted to the flexible curtain, or a press-stud removably pressed onto a complementary element fixed to the curtain, or any other suitable element.

According to one embodiment, both ends of the loops are attached to the same side of the flexible curtain. This is advantageous because the flexible curtain does not have to be turned around when attaching the sliding elements, which simplifies manufacture.

When a strip of fabric is used as a loop, sides of the strip which are closest to the flexible curtain at the level of the eye of the sliding element are turned towards each other at the point where the ends of the strip are attached to the flexible curtain. Opposite sides of the strip of fabric at this point form outer edges of the loop. This, in combination with an eye perpendicular to the plane of the flexible curtain, as in an embodiment described above, is advantageous for the accordion-like folding of the flexible curtain, where the flexible curtain emerges from the plane formed by the side wall primarily in one direction. Both ends of the loops can return to a horizontal position, in the plane of the eye, when the flexible curtain is folded-up. The flexible curtain will make a short bend around the sliding element. The short bend is located on the sides of the strip of fabric, which are closest to the flexible curtain at the level of the eye of the sliding element. The direction in which the flexible curtain emerges from the plane formed by the side wall may be chosen depending on the application, for example, towards the interior of the beam-shaped or cube-shaped volume in which components are stored to protect the flexible curtain in the lowered position from damage or, for example, towards the exterior of the beam-shaped or cubeshaped volume if this volume is divided into smaller compartments by dunnage which may hinder the movement of the flexible curtain.

According to one embodiment, folds are provided in the flexible curtain for promoting the accordion-like folding of the flexible curtain. For example, the pleats are pressed into the flexible curtain. For example, the pleats are stitched into the flexible curtain.

According to an alternative embodiment, the sliding elements comprise a coextruded flexible fastening member. The coextruded flexible fastening member is bendable relative to the foot of the sliding element. Preferably, the coextruded flexible fastening member is pivotally rotatable relative to the foot of the sliding element. This is advantageous when folding up the flexible curtain in an open position. Preferably, the coextruded flexible fastening member extends from the foot of the sliding element into the plane of the flexible curtain. The sliding elements are attached to the flexible curtain by the coextruded flexible fastening member. The coextruded flexible fastening member comprises a hook hooked into an opening of the flexible curtain, or a plate stapled, sewn, glued, bolted or riveted to the flexible curtain, or a press-stud removably pressed onto a complementary element fixed to the curtain, or any other suitable element.

According to one embodiment, the flexible curtain extends horizontally over substantially the entire length between two guide rails. This is advantageous for completely sealing off a side wall of the device so that components in the device are protected from dust and contamination.

An embodiment described above in which both ends of the loops are attached to the same side of the flexible curtain is in this case also advantageous in that it allows the flexible curtain to extend up to the guide rail, beyond a part of the sliding element passing through the slotted opening in the guide channel. Otherwise, the flexible curtain may only extend as far as the part of the sliding element which passes through the slotted opening in the guide channel. In this case, in order to allow the loop to have sufficient surface area so that the loop can twist sufficiently, it is necessary to have a distance between the flexible curtain and the part of the sliding element that protrudes through the slotted opening in the guide channel of at least 1 cm, preferably even at least 2 cm.

It will be apparent to one skilled in the art that a similar advantage is obtained if sliding elements with coextruded flexible fastening member according to an embodiment described above are used, where the coextruded flexible fastening elements are attached to the flexible curtain on the same side of the flexible curtain.

According to one embodiment, the flexible curtain is stretched substantially flat between horizontally opposing sliding elements. This is advantageous in that the opposing sliding elements are thereby pulled towards each other, making the sliding elements less likely to tilt in the guide channel and thereby block.

According to an embodiment, the flexible curtain comprises a closure at the top edge, configured to hold the flexible curtain closed against the upper frame member. This is advantageous to prevent the vertically movable flexible curtain from automatically sliding to a lowered position under the influence of gravity. According to a further embodiment, the closure comprises a magnet at the top edge of the flexible curtain and a ferromagnetic plate at the upper frame member. The magnet is attracted to the ferromagnetic plate in a closed position and keeps the flexible curtain in this position. It will be apparent to one skilled in the art that the position of the magnet and the ferromagnetic plate can be reversed. It will also be apparent to one skilled in the art that when using ferromagnetic material for the upper frame member, no separate ferromagnetic plate is required.

According to an alternative embodiment, the closure comprises a hook at the top edge of the flexible curtain and a complementary eye at the upper frame member. By hooking the hook into the eye, the flexible curtain is held in a closed position. It will be apparent to one skilled in the art that the position of the hook and the eye can be reversed.

According to an alternative embodiment, the closure comprises a profile and a first part of a hook and loop fastener at the top edge of the flexible curtain and a second complementary part of the hook and loop fastener at the upper frame member. In a closed position, the loops and hooks of the hook and loop fastener interlock, keeping the flexible curtain in the closed position. The profile is a metal or plastic profile. The profile preferably extends in a longitudinal direction. The profile is placed lengthwise in a casing parallel to the top edge. The casing is formed by folding over the flexible curtain at the top edge and fastening it. This is done by stitching, gluing, fusion welding or any other suitable technique. Preferably the profile is a plastic profile because of its low weight. Preferably, the profile extends across the full width of the flexible curtain, with the width measured in a direction parallel to the top edge. The profile has a rectangular or circular cross-section. Preferably, the profile has a circular cross-section, and the hook and loop fastener is arranged around the entire transverse circumference of the casing, the transverse circumference being in a plane perpendicular to the longitudinal direction of the profile. This is advantageous for the easy attachment of the first part of the hook and loop fastener against the second complementary part of the hook and loop fastener because, in a circular cross-section of the profile, a portion of the first part of the hook and loop fastener is always directed towards the second part.

The hook and loop fastener is preferably arranged on the casing and on the upper frame member near two ends of the profile. This is advantageous to keep the flexible curtain closed in corners formed by the upper frame member and connecting vertical frame members.

The hook and loop fastener is applied to the flexible curtain and the upper frame member over at least 40% of the length of the profile, preferably over at least 50% of the length, more preferably over at least 60% of the length, even more preferably over at least 70% and even more preferably over at least 80% of the length. Alternatively, the hook and loop fastener is applied over the entire length of the profile on the flexible curtain and the upper frame member.

According to an embodiment, the flexible curtain comprises a closure at the bottom edge, configured for attaching the flexible curtain to the lower frame member. The closure is as in the embodiments described above of the closure at the top edge of the flexible curtain. A closure at the bottom edge of the flexible curtain is advantageous for removably attaching the flexible curtain to the lower frame member. This allows a flexible curtain to be detached from the lower frame member quickly and without the use of tools in the event of damage. This is additionally advantageous for placing components in or removing components from the device in the event that the top edge of the flexible curtain is not accessible.

According to an embodiment, the flexible curtain comprises a loop near the top edge for moving the flexible curtain vertically. The loop is formed from a strip of textile or a piece of string. Preferably, the loops are treated with a water-resistant and abrasion-resistant coating. The loop has a length of at least 10 cm, preferably at least 15 cm, more preferably at least 20 cm and even more preferably at least 25 cm. The loop is preferably positioned in the middle of the top edge of the flexible curtain. This automatically manipulates the flexible curtain vertically in the middle, minimising the chance of sliding elements blocking. This is also advantageous for opening flexible curtains where the top edge is difficult to reach

According to an embodiment, the guide rail comprises an engagement opening for engaging sliding elements within the guide channel and/or disengaging sliding elements from the guide channel.

According to a further embodiment, the engagement opening is arranged in a transverse direction with respect to the guide rail. An advantage is that the sliding elements can be transversely engaged with, and disengaged from, the guide channels. For example, sliding elements can still be replaced in devices with a base or roof that cover the ends of the guide rails. It is not necessary to dismantle the base or the roof of the device.

The engagement opening may or may not be arranged as a widening of the slotted opening. The engagement opening may be formed, for example, by a recess extending from the slotted opening and through a side wall of the guide rail.

According to an embodiment, the guide rail comprises a blocking element. The blocking element has a blocking portion for blocking a passage of the sliding elements along the guide channel. The blocking portion is movable between a first and a second position. In a first position, the blocking portion blocks the passage of the sliding elements. In a second position, the blocking portion allows passage. Preferably, moving the blocking portion between the first and second position does not affect the coupling of the blocking element to the guide rail.

A blocking element is an alternative to closing the flexible curtain in a closed position.

A blocking element is an alternative to attaching the flexible curtain near the lower frame member.

A blocking element is advantageous for partially opening or closing the flexible curtain. For example, a blocking element can be placed in a guide rail halfway between the base and roof, allowing the flexible curtain to be held in a semi-closed position. This is additionally advantageous in combination with an embodiment described above where the flexible curtain comprises a closure at the bottom edge or with an embodiment where the flexible curtain is not fixed at the bottom edge, because the curtain can now also have an open position, where a bottom part of the flexible curtain is open.

According to a further embodiment, the blocking element is adapted so that the blocking portion thereof is resiliently movable away from the engagement opening between a first untensioned position and a second tensioned position.

This is advantageous for preventing sliding elements from inadvertently sliding out of the guide rail via the engagement opening. This is also advantageous because sliding elements can be easily pushed out of the guide rail by moving the blocking element from the first position to the second position via the engagement opening. This allows a flexible curtain to be replaced quickly and easily after damage or wear, without the use of tools.

In a second aspect, the invention relates to a kit for attaching a vertically movable flexible curtain to a storage device.

According to a preferred embodiment, the kit comprises a flexible curtain and at least two guide rails. The flexible curtain comprises a bottom edge and a top edge. The flexible curtain comprises a plurality of spaced sliding elements on opposite side edges. The side edges are situated transversely to the bottom edge and top edge of the flexible curtain. The sliding elements are preferably regularly spaced along a side edge.

The guide rails preferably extend in a longitudinal direction. In this regard, the guide rails may have a cross-section, generally invariant between the two ends thereof. Each transverse direction relative to the guide rails may refer to a direction contained in a plane perpendicular to the said longitudinal direction. The guide rails may comprise an extruded rail profile. The guide rails may comprise, for example, an aluminium or a composite extruded rail profile. The guide rails have a length of at least 1 m, preferably at least 1.5 m, more preferably at least 1.75 m and more preferably at least 2 m. The guide rails can be sawn so that the length of the guide rails can be adjusted to a storage device.

The guide rails enclose or clasp a longitudinal guide channel. The sliding elements comprise a foot configured to engage within the guide channel. According to a nonlimiting example, the cross-section of the guide rails may comprise two arms that clasp the guide channel. These arms are further separated by a slotted opening. The arms are configured to enclose the sliding elements within the guide channel. Preferably, the arms thereby prevent removal of the sliding elements, after engagement of the sliding elements, from the guide channel, through its slotted opening, in the direction of the flexible curtain. This slotted opening is sufficiently narrow for this purpose. The slotted opening is narrower than the foot of a sliding element. The sliding elements are configured to extend through the slotted opening. For example, the guide rail may comprise a substantially U-shaped or C-shaped cross-section. The sliding elements may be slidably mounted in the guide channel. This allows the sliding elements to be fixed in the guide rail while being able to slide along the guide channel. Of course, a certain tolerance may apply to the dimensions of the sliding element.

The sliding elements can be fixed directly within the guide channel. In this case, the guide channel is at least partially coated. The guide channel may be fully coated. The coating is applied during a painting and/or anodising process. The coating is applied in a layer with a thickness between 5 and 200 micrometres, preferably between 10 and 150 micrometres. The coating may comprise a polymer such as polytetrafluoroethylene (Teflon), WS2 (Tungsten disulphide) or a paint with lubricant. The use of the coating allows a sliding element to slide along the guide channel with little friction.

Alternatively, the sliding elements may be fixed in an insert provided within the guide channel. The insert is friction-reducing. The insert does not have to cover the entire length of the guide channel. The insert can cover the entire length of the guide channel. The insert may comprise one or more portions. The insert encloses or clasps an insert channel. The sliding elements are configured to be slidingly attached within the insert channel. The insert may comprise two arms, separated by a slotted opening from the insert, and configured to enclose the sliding elements within the insert channel. Preferably, the insert thereby prevents, after engagement of the sliding elements, removal of the sliding elements from the insert channel and thus the guide channel through its slotted opening, in the direction of the flexible curtain. This slotted opening is sufficiently narrow. The insert preferably has a cross-section that is substantially unchanging along its length. The insert comprises a polymer. According to a non-limiting embodiment, the insert comprises a polymer selected from polyolefins, such as high-density polyethylene (HDPE), ultra-high molecular weight polyethylene (UHMWPE), medium-density polyethylene (MDPE), polypropylene, polyurethane, polystyrene, cross-linked polyethylene (PEX or XLPE), polyoxymethylene (POM), or lubricated or modified versions of any of the above polyolefins to create lower coefficients of friction.

The kinetic friction coefficient between the coating in the guide channel and the sliding element or between the polymer of the insert and the sliding element is between 0 and 0.12 in dry conditions. Preferably, the kinetic friction coefficient is between 0 and 0.1. This kit has the advantage, among others, that a storage device can be equipped with a vertically movable flexible curtain with the aid of the kit, having the same advantages as a device according to the first aspect. This is particularly advantageous for the replacement of a flexible curtain according to the prior art, or for the protection of components in a storage device that does not include a flexible curtain.

According to an embodiment, the flexible curtain comprises a profile and a first part of a hook and loop fastener at the top edge. The kit comprises the second complementary part of hook and loop fastener, for attachment to the storage device. The first part and the second complementary part of the hook and loop fastener are configured to form a closure for the flexible curtain. The second complementary part of the hook and loop fastener is preferably self-adhesive, allowing the second part to be easily adhered to, for example, an upper frame member of a storage device. The profile is a metal or plastic profile. The profile preferably extends in a longitudinal direction. The profile is placed lengthwise in a casing parallel to the top edge. The casing is formed by folding over the flexible curtain at the top edge and fastening it. This is done by stitching, gluing, fusion welding or any other suitable technique. Preferably the profile is a plastic profile because of its low weight. Preferably, the profile extends across the full width of the flexible curtain, with the width measured in a direction parallel to the top edge. The profile has a rectangular or circular crosssection. Preferably, the profile has a circular cross-section, and the hook and loop fastener is arranged around the entire transverse circumference of the casing, the transverse circumference being in a plane perpendicular to the longitudinal direction of the profile. This is advantageous for the easy attachment of the first part of the hook and loop fastener against the second complementary part of the hook and loop fastener.

The first part of the hook and loop fastener is preferably attached to the casing near two ends of the profile.

The first part of the hook and loop fastener is applied to the flexible curtain over at least 40% of the length of the profile, preferably over at least 50% of the length, more preferably over at least 60% of the length, even more preferably over at least 70% and even more preferably over at least 80% of the length. Alternatively, the first part of the hook and loop fastener is applied to the entire length of the profile on the flexible curtain. A person skilled in the art will appreciate that the kit is preferably configured for obtaining a device according to the first aspect and that consequently the device of the first aspect can be obtained with a kit according to the second aspect. Each feature described herein, above as well as below, may therefore relate to both aspects of the present invention.

In what follows, the invention is described by means of non-limiting figures illustrating the invention, which are not intended or should be interpreted to limit the scope of the invention.

DETAILED DESCRIPTION OF THE DRAWINGS

Figure 1 shows a cross-section of a guide rail (6) according to an embodiment of the present invention.

The guide rail (6) comprises an insert (12) and a sliding element (5). Both the insert

(12) and the guide channel (10) of the guide rail (6) are substantially C-shaped or U-shaped. The arms (1) of the insert (12) fold inward toward the insert channel (13) of the insert (12) and are bent along the insert channel (13). The arms (1) prevent that the foot (14) of the sliding element (5) can be removed from the insert channel

(13), whereby the sliding element (5) is slidably fastened in the insert (12) and the guide rail (6). The arms (3) of the guide rail (6) fold inwards towards the guide channel (10). The arms (3) prevent the foot (14) of the sliding element (5) from being removed from the guide channel (10). The sliding elements (5) extend through a slotted opening (11') of the insert (12) and a slotted opening (11) of the guide rail (6). The sliding element (5) comprises an eye (15) through which a loop (4) is attached. The loop (4) is in turn attached to the flexible curtain (24). The flexible curtain (24) is not shown in this figure. The eye (15) is a part of the sliding element (5) which extends through the slotted openings (11') and (11). The guide rail (6) further comprises two anchoring channels (18) which are intended to anchor a cover (19) which closes one end of a guide rail (6) so that sliding elements (5) at the end of the guide rail (6) cannot slide out of the guide channel (10). The cover (19) is not shown in the figure. Figures 2A-2B show a perspective view of a guide rail (6) according to an embodiment of the present invention, further provided with an insert (12), a sliding element (5) and a blocking element (9).

The figures show an end portion (8) of the guide rail (6). The guide rail (6) is omitted from Figure 2B. The guide rail (6) forms a longitudinal guide channel (10), not which is indicated, with a slotted opening (11). The blocking element (9), coupled to the open end portion (8), further comprises a transverse cover (19). As such, this covers the guide channel (10) at the end portion (8). The blocking element (9) further has two expansion anchors (17), only one of which is visible in Figure 2A. These extend into two corresponding anchoring channels (18), only one of which is visible in Figure 2A, formed by the guide rail (6). The expansion anchors (17) have expandable casings. They are further provided to accommodate threaded fasteners (16), expanding outward and transversely. The expansion anchors (17) thus provide a coupling mechanism. A friction-reducing insert (12) is further provided within the guide channel (10). This insert (12) forms an insert channel (13) which also has a slotted opening (11')- At least one sliding element (5) is in sliding engagement within the insert channel (13), and thus also within the guide channel (10). For this purpose, the sliding element (5) is provided with a foot (14). The sliding element (5) is thus capable of moving back and forth along the longitudinal direction (23), along the guide channel (10). The sliding element (5) simultaneously provides an eye (15) for the loop (4), through the previously mentioned slotted openings (11) and (11'). Preferably, the slotted opening (11') of the insert (12) is sufficiently narrow to hold the sliding elements (5). As such, it does not allow the sliding elements (5) to be disengaged from the insert channel (13). However, the insert (12) does not extend over the entire length of the guide rail (6). It has a cut-off (20). Furthermore, in the embodiment shown, the slotted opening (11) of the guide channel (10) is wider than the slotted opening (11') of the insert channel (13). By providing a wider opening, the slotted opening (11) of the guide channel (10) allows engagement and disengagement of the sliding elements (5). As such, the slotted opening (11) of the guide channel (10) provides an engagement opening (21) at/beyond said cut-off (20). The cut-off (20) is more clearly visible in Figure 2B, with the guide rail (6) omitted. As shown in Figures 2A and 2B, the blocking element (9) has a blocking portion (22) that blocks a passage of the sliding element (5). More specifically, it prevents the sliding element (5) from sliding beyond the cut-off (20) where the engagement opening (21) is provided. As such, the sliding element (5) cannot be disengaged unless the blocking portion (22) has been moved from its first position, shown in Figures 2A and 2B, to a second position, in which it allows this passage.

In general, the blocking element (9) preferably remains coupled to the guide rail (6) for engaging/disengaging a sliding element (5). At the same time, it is designed so that the blocking portion (22) thereof can be brought into a second, non-blocking position.

Figure 3 shows a perspective view of a device (25) according to an embodiment of the present invention, with the movable flexible curtain (24) in a closed position.

The device (25) comprises lower frame members (26), upper frame members (27) and vertical frame members (28), the lower frame members (26) and the upper frame members (27) being connected by the vertical frame members (28) to form a rigid frame. The lower frame members (26) are part of a base (29). The upper frame members (27) are part of a roof (30). The base (29), the roof (30) and connecting vertical frame members (28), which connect at opposite corners along the same edge of the base (29), the base (29) and the roof (30), frame a side wall. A vertically movable flexible curtain (24) is fixed in the plane of the side wall. The flexible curtain (24) comprises side edges (34), a top edge (35) and a bottom edge (36). The top edge (35) and the bottom edge (36) are substantially parallel to each other. The side edges (34) are located transversely to the top edge (35) and the bottom edge (36). The flexible curtain (24) comprises a number of spaced out sliding elements (5) on opposite side edges (34). The sliding elements (5) are attached to the flexible curtain (24) my means of loops (4). The sliding elements (5) are slidingly fixed in the guide channel (10) of a guide rail (6). The guide rails (6) are attached to opposite vertical frame members (28). The guide rails (6) are not shown in Figure 3. The flexible curtain (24) comprises a closure at the top edge (36). The closure is suitable for holding the flexible curtain (24) in a closed position. The closure comprises a profile (31) arranged in a casing. The casing is formed by folding over the flexible curtain (24) at the top edge (35) and fastening it. The closure further comprises a first part of a hook and loop fastener (32). A second complementary part is attached to an upper frame member (27). The second complementary part is not shown in Figure 3. The first part of the hook and loop fastener (32) is arranged near two ends of the profile (31) around the entire transverse circumference of the casing. The flexible curtain (24) comprises on its bottom edge (36) a second closure similar to the one on its top edge (35). With this, the flexible curtain is removably attached to a lower frame member (26). Near the top edge (35), the flexible curtain (24) comprises a loop (33) for moving the flexible curtain (24) vertically.

Figure 4 shows a perspective view of a device (25) according to an embodiment of the present invention, with the movable flexible curtain (24) in an open position.

The embodiment is similar to the embodiment in Figure 3. The flexible curtain (24) is in an open position near the base (29) of the device (25). The flexible curtain (24) is folded up accordion-like. Due to the absence of profiles through the flexible curtain (24) and due to the limited dimensions of the sliding elements (5), the flexible curtain (24) takes up little space in the lowered position, so that only a limited portion of the device (25) is shielded by the flexible curtain (24).

Figure 5 shows a detail reproduction of sliding elements of a device (25) according to an embodiment of the present invention, with the movable flexible curtain (24) in a closed position.

The figure shows a vertical frame member (28) comprising a guide rail (6). A sliding element (5) is fixed slidingly in the guide channel (10) of the guide rail (6). A loop (4) is arranged through the eye (15) of the sliding element (5). The loop (4) is arranged at two ends on the same side of the flexible curtain (24), but at different heights. This allows the flexible curtain (24) to extend horizontally over substantially the entire length between two guide rails (6), where a side edge (34) of the flexible curtain (24) is located near the guide rail (6). The loop (4) is formed by a textile strip. Sides of the strip of fabric, which are closest to the flexible curtain (24) at the level of the eye (15) of the sliding element (5), are turned towards each other at the point where the ends of the strip of fabric are attached to the flexible curtain (24). Opposite sides of the strip of fabric will then form outer edges of the loop (4).

Figure 6 shows a detail reproduction of sliding elements (5) of a device (25) according to an embodiment of the present invention, with the movable flexible curtain (24) in an open position.

The embodiment is similar to the embodiment shown in Figure 5. The detail reproduction is viewed from a direction perpendicular to the plane of the guide rail (6). The flexible curtain (24) is folded up accordion-like. The sliding elements (5) have limited dimensions, which allows the flexible curtain (24) to fold compactly, partly due to the absence of profiles through the flexible curtain (24), and only a limited portion of the device (25) is shielded by the flexible curtain (24). Both ends of the loops (4) are returned to a horizontal position, in the plane of the eye (15). The flexible curtain (24) will make a short bend around the sliding element (5). The short bend is located on the sides of the strip of fabric, which are closest to the flexible curtain (24) at the level of the eye (15) of the sliding element (5). This attachment of the loops (4) is advantageous for the accordion-like folding of the flexible curtain (24), wherein the flexible curtain (24) extends mainly in one direction from the plane formed by the side wall.

Claims

22 CLAIMS

1. A device for storing components comprising a number of upper horizontal frame members, a number of lower horizontal frame members and a number of vertical frame members, wherein the upper and lower horizontal frame members are connected by the vertical frame members to form a rigid frame, and a vertically movable flexible curtain comprising a bottom edge and a top edge, wherein the flexible curtain is mounted in or on a plane formed by an upper frame member, a lower frame member and connecting vertical frame members, wherein the flexible curtain comprises a number of spaced apart sliding elements on opposite side edges of the flexible curtain, located transversely to the bottom edge and top edge, wherein the sliding elements on a single side edge of the flexible curtain are slidably fixed in a longitudinal guide channel of a guide rail and wherein the guide rail is fixed to a connecting vertical frame member characterised in that the guide channel is at least partially coated with a polymer insert or a coating, applied during a painting and/or anodising process.

2. Device according to claim 1, characterised in that the sliding elements comprise an eye, the sliding elements being attached to the flexible curtain by means of loops through the eye.

3. Device according to claim 2, characterised in that the opening of the eye is located in a plane transverse to the plane of the flexible curtain.

4. Device according to claim 3, characterised in that both ends of a loop are attached to the flexible curtain at different heights.

5. Device according to claim 2, characterised in that the eye is rotatably mounted.

6. Device according to claim 1, characterised in that the sliding elements comprise a coextruded flexible fastening member, wherein the sliding elements are attached to the flexible curtain by the coextruded flexible fastening member.

7. Device according to any of the preceding claims 1-6, characterised in that the flexible curtain is stretched substantially flat between horizontally opposed sliding elements.

8. Device according to any of the preceding claims 1-7, characterised in that the flexible curtain comprises at its top edge a closure configured to hold the flexible curtain closed against the upper frame member.

9. Device according to claim 8, characterised in that the closure comprises a profile and a first part of a hook and loop fastener at the top edge of the flexible curtain and a second complementary part of the hook and loop fastener at the upper frame member.

10. Device according to any of the preceding claims 1-9, characterised in that the flexible curtain comprises a loop near the top edge for moving the flexible curtain vertically.

11. Device according to any of the preceding claims 1-10, characterised in that the guide rail comprises arms for preventing removal of a sliding element from the guide channel in the direction of the flexible curtain.

12. Device according to any of the preceding claims 1-11, characterised in that the guide rail comprises an engagement opening for engaging sliding elements within the guide channel and/or disengaging sliding elements from the guide channel.

13. Device according to any of the preceding claims 1-12, characterised in that the guide rail comprises a blocking element, wherein the blocking element has a blocking portion for blocking a passage of the sliding elements along the guide channel and wherein the blocking portion is movable between a first and a second position, wherein the blocking portion blocks and enables the passage of the sliding elements, respectively.

14. Device according to claims 12 and 13, characterised in that the blocking element is adapted so that the blocking portion thereof is resiliently movable away from the engagement opening between a first untensioned position and a second tensioned position. Device according to any of the preceding claims 1-14, characterised in that the flexible curtain extends horizontally over substantially its entire length between two guide rails. Kit for attaching a vertically movable flexible curtain to a storage device, comprising a flexible curtain and at least two guide rails, wherein the flexible curtain comprises a bottom edge and a top edge, wherein the flexible curtain comprises a number of spaced apart sliding elements on opposite side edges of the flexible curtain, located transversely to the bottom edge and top edge, wherein the guide rails comprise a longitudinal guide channel configured for slidably mounting the sliding elements, characterised in that the guide channel is at least partially coated with a polymer insert or a coating, applied during a painting and/or anodising process. Kit according to claim 16, characterised in that the flexible curtain comprises a profile and a first part of a hook and loop fastener at the top edge and that the kit comprises the second complementary part of the hook and loop fastener, for attachment to the storage device.