The present invention relates to a method for mounting a cover with slidable lids onto a refrigerated merchandising storage unit, such as a refrigerator or a freezer with a rectangular top opening, in such a way that the lids can be moved, preferably sideways or back and forth, for creating an opening into a cooled compartment.

BACKGROUND OF THE INVENTION

Refrigerated display and storage units used in supermarkets and the like for displaying food, typically have a top opening covered with transparent lids allowing the grocery of choice to be easily located by the customers. The lids may be displaced in different ways for making the displayed food accessible for the customer.

It is known to mount the lids in such a way that the compartment is accessible by displacing a lid like a door, for instance by attached one side of the lid to the storage unit using hinges. Other methods include the use of one or more slidable lids. These can be displaced either sideways or back and forth, sliding underneath or on top of a neighbouring lid or a stationary cover section of the compartment.

In general, such transparent lids are typically mounted in a frame, which is in turn slidably mounted in tracks. Examples hereof are shown, for instance, from

US 2002/0190619 and US 2009/0224544. The lids can, however, also be mounted directly in the tracks resting slidably on the surface of the track. In order to prevent dislocation of a lid from one or more tracks, the rails, in which the tracks are formed, can be pushed towards each other, so that two opposite edges of the lid are enclosed by the rails. In this case, the rails or at least a part thereof need to be moved before and after replacement of a lid. An example hereof is shown in WO 97/19621. If the lids are not properly retained within the tracks when mounted, there is a risk of separation of the lids from the tracks when in use. If the lids and the tracks can disconnect, the lid may fall into the storage unit, which is very inconvenient. BRIEF DESCRIPTION OF THE INVENTION

It is an object of the present invention is to provide a method for mounting a cover with slidable lids onto a refrigerated merchandising storage unit, which method enables an easy installation and replacement of the cover through a simple manoeuvre requiring only a minimum amount of labour.

Furthermore, it is a further object of the invention to provide a method for mounting the cover in such a way that the lids are slidably retained within tracks, thus eliminating the risk of separation of the lids from the tracks.

A particular cover is disclosed in international application WO 2018/069004 Al, which comprises a retainer arrangement with a latch and a protrusion provided for retaining the lids in the tracks.

The present invention relates to a method for mounting a cover with a plurality of slidable lids onto a storage compartment of a refrigerated merchandising storage unit for display and sale of foodstuff or the like, which storage compartment has a substantially rectangular top opening, wherein the method comprises the steps of: providing two or more cover cassettes, each comprising one or more slidable lids, two cross profiles arranged along two opposite sides of the cover cassette, respectively, and two base profiles arranged along two opposite ends of the cover cassette, respectively, perpendicularly to the cross profiles, each cross profile or each base profile comprising one or more elongated and generally EG-shaped tracks, each of which is arranged for receiving an edge of a slidable lid in such a way that the slidable lid can be slid along a longitudinal direction of the track mounting the two or more cover cassettes on top of the storage compartment in such a way that two opposite ends of each cover cassette rest upon two upwards-facing edges of the storage compartment, respectively, and in such a way that the two or more cover cassettes together form a cover of the refrigerated merchandising storage unit.

Mounting the cover using such a method is advantageous, among other reasons, because the cover cassettes can be assembled before being mounted under optimized conditions in a factory. This significantly increases the efficiency or the mounting procedure and reduces the cost and time consumption related to the mounting of the cover onto the storage compartment. In an embodiment of the invention, the method comprises, before the step of mounting the two or more cover cassettes on top of the storage compartment, a step of mounting along each of the two upwards-facing edges of the storage compartment, onto which the two or more cover cassettes are to rest, a spacer profile, which is arranged to be able to engage releasably with the base profiles of the two or more cover cassettes. In alternative embodiments, the base profiles of the cover cassettes are fastened, e.g. glued, directly onto the upward-facing edges of the storage compartment.

Such a construction enables for a simple and fast mounting of the cover cassettes onto the storage compartment and for a simple and fast replacement of two or more cover cassettes, should it be necessary.

In an embodiment of the invention, the method comprises, after the step of mounting the two or more cover cassettes on top of the storage compartment, a step of mounting along each the two upwards-facing edges of the storage compartment, onto which the two or more cover cassettes rest, a cover profile, which is arranged to be able to engage releasably with the base profiles of the two or more cover cassettes and, if present, with the spacer profiles.

The use of a cover profile is a simple and easy way of ensuring an aesthetically satisfying design of the refrigerated merchandising storage unit after the mounting of the cover.

In an embodiment of the invention, the releasable engagements between the base profiles of the two or more cover cassettes and the spacer profiles and/or the cover profiles are designed as click-together assemblies.

In an embodiment of the invention, the base profiles of the two or more cover cassettes rest upon the long sides of the storage compartment.

In an embodiment of the invention, the two or more slidable lids of each cover cassette are arranged to be slidable in a direction perpendicular to the longitudinal direction of the storage compartment.

In an embodiment of the invention, each of the two or more cover cassettes comprises two slidable lids being arranged to be slid, one above the other, away from the long sides of the storage compartment, respectively, towards the centre thereof for giving access to the interior thereof.

In an embodiment of the invention, each of the two or more cover cassettes further comprises a fixed lid arranged above the two slidable lids in a central part of the cover cassette.

In an embodiment of the invention, the fixed lid is arranged on top of the cross profiles of the cover cassette. In an embodiment of the invention, the one or more slidable lids of a cover cassette are arranged to be able to slide in a direction parallel to the longitudinal direction of the storage compartment. In an embodiment of the invention, the two or more cover cassettes and the cross profiles thereof are curved in a direction perpendicular to the longitudinal direction of the storage compartment.

In an embodiment of the invention, the dimension in one direction of the two or more cover cassettes is 0.94 meter or 1.25 meter.

This means that two, three or four of such cover cassettes together fit the opening of the storage compartment of refrigerated merchandising storage units with a standard length of e.g. 2.5 meter or 3.75 meter.

It is particularly advantageous that a retainer arrangement is provided near said one or more U-shaped tracks and said one or more lid for retaining the lid in that track, wherein the retainer arrangement comprises a latch fixed to the lid and a protrusion fixed to that track, the latch and the protrusion being arranged such that when lateral extraction forces are applied to the lid in a direction away from the track, the latch and the protrusion are forced into abutment producing a holding force so that a separation of the lid and the track is prevented, wherein either the protrusion or the latch is made of a resilient flexible material such that the edge of the lid can be inserted into the track, by bending either the latch towards a surface of the lid or the protrusion towards a side of the track on which it protrudes from. Such retainer arrangement is disclosed in international patent application WO 2018/069004 Al.

In an aspect of the invention, it relates to a refrigerated merchandising storage unit, a cover of which is mounted using the method according to any of the preceding claims. THE DRAWING

In the following, a few exemplary embodiments of the present invention are described in more detail with reference to the figures of the enclosed drawing, in which:

Fig. la illustrates a first step of a method for mounting a cover with a plurality of slidable lids onto a refrigerated merchandising storage unit according an embodiment of the invention,

Fig. lb illustrates a second step of the same method, Fig. lc illustrates a third step of the same method, Fig. ld illustrates a fourth step of the same method, Fig. le illustrates a fifth step of the same method,

Fig. lf illustrates a sixth step of the same method,

Fig. lg illustrates a refrigerated merchandising storage unit obtained by

performing the six steps illustrated in Figs la-lf,

Fig. 2 is a cross-sectional view of the assembly of two cross-profiles of two neighbouring cover cassettes of a refrigerated merchandising storage unit according to an embodiment of the invention,

Fig. 3a is a cross-sectional view of a spacer profile according to an embodiment of the invention, Fig. 3b is a cross-sectional view of a base profile according to an embodiment of the invention,

Fig. 3c is a cross-sectional view of a cover profile according to an embodiment of the invention, and

Fig. 3d is a cross-sectional view of a hand-rail assembly according to an

embodiment of the invention.

DETAILED DESCRIPTION OF EMBODIMENTS

Figs. 1 a- lf illustrate a number of steps of a method for mounting a cover with a plurality of slidable lids 7 onto a refrigerated merchandising storage unit 1 according an embodiment of the invention.

In Fig. la, it is illustrated how a spacer profile 5 is mounted onto the upward-facing edge of each of the two long sides 3 of a storage compartment 2 of a refrigerated merchandising storage unit 1. The spacer profiles 5 are arranged to be able to engage with the base profiles 11 (not shown in Fig. la) arranged at the ends of the two or more cover cassettes 6 (not shown in Fig. la) for fastening the cover cassettes 6 are fastened to the storage compartment 2. In the illustrated embodiment, the upward- facing edges of the two short sides 4 of the storage compartment 2 are curved. In other embodiments, they may be straight and horizontal just like the upward-facing edge of each of the two long sides 3.

Fig. lb illustrates how a first cover cassette 6 is mounted onto the storage

compartment 2 at one end thereof. In the illustrated embodiment, the cover cassette 6 is assembled with two slidable lids 7 and a fixed lid 8 in a frame comprising two curved cross profiles 10 along the sides thereof and two base profiles 11 along the ends thereof. The fixed lid 8 is arranged on top of the cross profiles 10 at the centre of the cover cassette 6, whereas the two slidable lids 7 are arranged to be able to slide in an upper track 14 and a lower track 15, respectively, arranged along the inner side of each cross profile 10. Thus, by pushing or pulling the lid handle 9 arranged on a slidable lid 7, the slidable lid 7 can be slid away from or towards the edge of the storage compartment 2, respectively, moving under or over the other slidable lid 7 and under the fixed lid 8 In this way, access to the interior of the storage

compartment 2 can be obtained and the opening can be closed again. In other embodiments, the cover cassette 6 can comprise other combinations of one or more slidable lids 7 and one or more fixed lids 8. By mounting two more such cover cassettes 6 like illustrated in Figs lc and ld, a full cover for the opening of the storage compartment 2 is obtained by means of the three cover cassettes 6 abutting one another. For each of the cover cassettes 6, the two base profiles 11 engage with the spacer profiles 5 mounted on the edges of the storage compartment 2, for instance through a click-together assembly.

Fig. le illustrates how a cover profile 13 may be mounted along each long side 3 of the storage compartment 2 for covering the spacer profile 5 and the base profiles 11, thus forming a hand-rail along the edge of the storage compartment 2. The cover profile 13 may engage to the spacer profile 5 and/or the base profiles 11, for instance by a click-together assembly.

Finally, Fig. lf illustrates how a gap profile 12 may be mounted to seal the gap between the abutting cross-profiles 10 of two neighbouring cover cassettes 6 for obtaining a tight cover consisting of the three cover cassettes 6. These gap profiles 12 may, for instance, be mounted using double-sided adhesive tape 16 (see Fig. 2).

Fig. lg illustrates a refrigerated merchandising storage unit 1 obtained by performing the steps illustrated in Figs la-lf. Fig. 2 is a cross-sectional view of the assembly of two cross-profiles 10 of two neighbouring cover cassettes 6 of a refrigerated merchandising storage unit 1 according to an embodiment of the invention assembled as described above. Each of the two cross profiles comprises two longitudinal and generally U-shaped tracks 14, 15, each of which is arranged for receiving an edge of a slidable lid 7 in such a way that the slidable lid 7 can be slid along the longitudinal direction of the track 14, 15, the opposite edge of the slidable lid 7 being received by a corresponding track 14, 15 of the cross profile 10 on the other side of the cover cassette 6 (not shown in this figure). Fig. 2 further illustrates how the gap between the two cross profiles 10 can be sealed by a gap profile 12, which may, for instance, be fastened to the two cross profiles 10 by means of double-sided adhesive tape 16.

Fig. 3a is a cross-sectional view of a spacer profile 5 according to an embodiment of the invention, comprising a number of interface features 18 for engagement with a base profile 11 (see Fig. 3d). Furthermore, in the illustrated embodiment, the spacer profile 5 is provided with a trimable wall 17, which can be cut for varying thicknesses of the side wall along the long side 3 of the storage compartment 2 (not shown in this figure). An appropriate cutting of this trimable wall 17 determines the correct positions of the base profiles 11 (not shown in this figure) relative to the storage compartment 2. Fig. 3a also illustrates how the spacer profile 5 may comprise a channel 19, for instance for a heater cable (not shown), at one end and a channel 20, for instance for a pin (not shown) for alignment of wall sections of the storage compartment 2 (not shown), at the other end. Typically, the spacer profiles 5 are glued onto the edge of the storage compartment 2 (and maybe secured with a few, small self-tapping screws, not shown) allowing for an instant positioning and mounting of the cover cassettes 6 onto the storage compartment 2 of the refrigerated merchandising storage unit 1.

Fig. 3b is a cross-sectional view of a base profile 11 according to an embodiment of the invention, comprising a number of interface features 21 for engagement with a spacer profile 5 and a number of interface features 24 for engagement with a cover profile 13 (see Fig. 3d). Furthermore, in the illustrated embodiment, the base profile 11 comprises a couple of tracks 22 for bumper sealings 25 (see Fig. 3d) and a couple of channels 23, for instance for pins and screws (not shown).

Fig. 3c is a cross-sectional view of a cover profile 13 according to an embodiment of the invention, comprising a couple of interface features 26 for engagement with a base profile 11 and a single interface feature 24 for engagement with a spacer profile 5 (see Fig. 3d).

Fig. 3d is a cross-sectional view of a hand-rail assembly according to an embodiment of the invention, comprising of a spacer profile 5, one or more base profiles 11 and a cover profile 13, which are clicked together using the interface features 18, 21, 24,

26, 27 designed therefore. The base profile(s) 11 may further be secured to the spacer profile 5 with a few, small self-tapping screws (not shown). A couple of bumper sealings 25 are arranged along the base profile 11 for softening the impact on the base profile 11, when a slidable lid 7 is closed by being drawn towards the base profile 7 until it bumps against it.

LIST OF REFERENCE NUMERALS

1. Refrigerated merchandising storage unit

2. Storage compartment

3. Long side of the storage compartment

4. Short side of the storage compartment

5. Spacer profile

6. Cover cassette

7. Slidable lid

8. Fixed lid

9. Lid handle

10. Cross profile

11. Base profile

12. Gap profile

13. Cover profile

14. Upper track

15. Lower track

16. Adhesive tape

17. Trimable wall

18. Interface feature for base profile

19. Channel for heating cable

20. Channel for pin

21. Interface feature for spacer profile

22. Track for bumper sealing

23. Channel for pins and screws

24. Interface for cover profile

25. Bumper sealing

26. Interface feature for base profile

27. Interface feature for spacer profile