WO2022255879A1

WO2022255879A1 - A hanging system for hanging canvases

Info

Publication number: WO2022255879A1
Application number: PCT/NO2022/050120
Authority: WO
Inventors: Hans-Henrik USTVEDT
Original assignee: DYRNES, Ralph P.; Ellingsen, Birgitte Hjelde
Priority date: 2021-05-25
Filing date: 2022-05-25
Publication date: 2022-12-08
Also published as: EP4348628A1

Abstract

The present invention relates to a hanging system for banners, tarpaulins, or canvases (21) comprising members such as an elongate tubular body (10) mounted to the banner, tarpaulin, or canvas (21). Elongate profiles (30) are used together with securing means to prevent or restrict the banner, tarpaulin, or canvas (21) from moving in an axial or horizontal direction.

Description

A HANGING SYSTEM FOR HANGING CANVASES

Field of the Invention

[001] The present invention relates to canvases hung from a horizontal beam having open longitudinal tracks along the narrow long side thereof, and to the manner in which the canvases are fastened to the beam. Alternatively, the invention relates to canvases stretched out between two horizontal beams having open longitudinal tracks along the narrow long side thereof, and to the manner in which the canvases are fastened to the beams.

Background Art

[002] Hanging posters are made of tarpaulin, such as PVC canvases, paper canvases, fabric canvases, and the like. Such tarpaulin posters can be hung on walls by providing them with grommets or by attaching keders attached to a keder flap, which keder flap is in turn fixed to the tarpaulin poster, commonly by sewing or welding the keder flap to the tarpaulin poster. The keder mounted on the keder flap can then be inserted into longitudinal tracks of keder rails arranged horizontally and parallel to each other and directly above each other vertically.

[003] The keder flaps are made of plastic, as are the keder and tarpaulin poster, and the keder flaps are sewn or welded to the upper and lower sides of the tarpaulin poster.

[004] Commonly, canvases and tarpaulins are stretched between keder rails. The canvas is then typically provided with at least one keder, although generally keders are provided on two opposite sides of the canvas. However, keders may also be provided on more than two sides of the canvas. At its sides to be provided with keders, the canvas is fitted with keder flaps for keder attachment. The keders are adapted for being mounted in keder tracks of keder rails.

[005] It is a desire to limit the use of resources in the production of advertising banners, and to eliminate the need for keders with tarpaulins such as advertising banners.

[006] It is an object of the present invention to provide an alternative solution to the use of plastic tarpaulins. Moreover, it is desirable to prevent or restrict axial or horizontal movement of the advertising banner, while at the same time it is desirable to allow for a certain or given movement of the advertising banner in a vertical direction.

Summary of the Invention

[007] The main features of the present invention will be apparent from the independent claim. Further features of the invention are set out in the dependent claims. The object of the invention is achieved by the use of a hanging system for hanging canvases. The hanging system comprises: a canvas having at least one straight upper terminal edge, said at least one upper terminal edge being folded inwards and said terminal edge being fixed to the canvas so as to form a loop; at least one elongate tubular body; at least one elongate profile having an upper side and a lower side, said at least one elongate profile comprising at least one elongate cavity extending along the entire length of the profile on the lower side thereof, and said cavity comprising a longitudinal opening extending along the entire length of the profile, wherein said at least one elongate tubular body is disposed in the loop of the canvas and said canvas with said elongate tubular body is arranged inside said at least one elongate cavity in said at least one elongate profile so that the canvas extends from said longitudinal opening; and securing means disposed at a distance B from an end of said at least one elongate tubular body, the securing means being configured for preventing or restricting axial or horizontal movement of the body with the canvas and further being configured for allowing a certain movement of the body with the canvas in a vertical direction, with the degree of freedom of movement of the vertical movement of said at least one tubular elongate body being determined by the height H of said at least one cavity minus the diameter A of said at least one tubular elongate body. The securing means may be located on at least one of: said at least one elongate tubular body and/or said at least one elongate profile. The securing means is in the form of a headed bolt or screw and one or more holes. Said bolt or screw can be inserted through a hole created through and at a distance B from an end of the upper short longitudinal side of said at least one cavity in such a manner that the externally threaded body of the bolt or screw is suitable for being inserted through this hole to be screwed into another, internally threaded hole created in said tubular elongate body. The internal threads of the second hole in said tubular elongate body may match or fit the external threads of the bolt or screw. The hole in the upper short longitudinal side of said at least one cavity has a given diameter, so that this hole prevents or restricts axial or horizontal movement of said tubular elongate body with a certain axial or horizontal play determined by the diameter of the hole minus the outer diameter of the externally threaded body of the bolt or screw. The second hole of the body can be drilled partially through the body, and a portion of the bolt or screw can be screwed therein. Alternatively, the second hole of the body may be drilled entirely through the body, and a nut can be screwed or securely fixed to the bolt at the lower side of the second through hole of the body. Further, according to another embodiment, the securing means may be in the form of a headed or headless rivet and one or more holes. The rivet is suitable for being threaded partially through a hole created through and at a distance B from an end of the upper short longitudinal side of said at least one cavity to finally be nailed or hammered into a second hole in said tubular elongate body. The hole in the upper short longitudinal side of said at least one cavity has a given diameter, so that this hole prevents or restricts axial or horizontal movement of the tubular elongate body with a certain axial or horizontal play determined by the diameter of the hole minus the diameter of the elongate body of the rivet. The diameter of the second hole in the body is slightly smaller than the diameter of the elongate body of the rivet, thereby ensuring fixation of part of the rivet (that is, part of the elongate body of the rivet) into or onto the body. Furthermore, according to a further embodiment, the securing means may be in the form of a headed rivet and one or more holes, said rivet being suitable for being threaded partially through a hole created through and at a distance B from an end of the upper short longitudinal side of the at least one cavity and then being threaded further through a through hole in said tubular elongate body, with a second head being formed by hammering on the opposite side of the rivet and on the lower side of the through hole of the body. According to another embodiment, the securing means may be in the form of securing fittings and locking grooves. In this case, the object of the invention is achieved by using at least one elongate tubular body for use in hanging canvases, said elongate tubular body comprising a locking groove adjacent to one end of the tubular body or both ends of the tubular body, said locking groove or two locking grooves being disposed at a distance B from the end of the tubular body, and said locking groove or two locking grooves being endless recessions so that a diameter of the tubular body at the recessions is E, with E < A, A being the diameter of the tubular body, said locking groove having a width C.

[008] Further, the object of the invention is achieved by securing means in the form of a securing fitting for releasable engagement with a locking groove of an elongate tubular body for use in hanging canvases, and for releasable engagement with an elongate profile, said securing fitting comprising: a) a right securing leg and a left securing leg parallel to the right securing leg, said securing legs each having a free end and being connected at the end opposite to the open end, said opposite and parallel securing legs having a distance L between them and being adapted to function as a locking ring with unrestricted movement parallel to the straight and opposite lateral edges of the securing legs for a custom member provided with a locking groove, and b) at least one of said securing legs being provided with means of engagement at one or two lateral edges thereof.

[009] In an embodiment, the securing fitting is shaped as an elongate U-profile for engaging with an elongate tubular body for use in hanging canvases, said securing fitting having a rectangular bottom having a height M, P and a width N, R, said securing fitting further including a right securing leg and a left securing leg, said securing legs having a distance L between them, said securing legs being parallel and forming two lower terminal edges of the rectangular bottom, said opposite securing legs having a distance L between them being adapted to function as a locking ring with unrestricted movement parallel to the opposite lateral edges of the securing legs for a custom member provided with a locking groove. Said left securing leg may include a lower left leg protruding from said left securing leg and said right securing leg may include a lower right leg protruding from said right securing leg, said right and left legs including means of engagement. The upper terminal edge of the rectangular bottom may include an upper leg protruding from the upper terminal edge of the rectangular bottom, said upper leg comprising means of engagement.

[0010] In an aspect of the invention, the rectangular bottom of the U-shaped securing fitting comprises a longitudinal left leg protruding from the left lateral edge of the U-shaped securing fitting by a length M, P and a longitudinal right leg protruding from the left lateral edge by a length M, P, said right and left legs comprising means of engagement.

[0011] The securing fitting can be made of a resilient material such as spring steel. To ensure a frictionless movement of the tubular body, the thickness of the securing fitting must be smaller than C.

[0012] In one embodiment, the means of engagement forms gripping claws.

[0013] A further object of the invention is achieved by a hanging system for hanging canvases, comprising: a) a canvas having at least one straight upper terminal edge, wherein: i. said at least one upper terminal edge is folded inwards and said terminal edge is fixed to the canvas so as to form a loop, b) at least one elongate tubular body, said elongate tubular body at least comprising one locking groove at the one end of the tubular body located at a distance B from the end of the tubular body, said locking groove being an endless recession, c) at least one elongate profile having an upper side and a lower side, at least comprising one cavity extending along the entire length of the profile on the lower side thereof, said cavity comprising a longitudinal opening extending along the entire length of the profile, d) at least one securing fitting shaped as an elongate U-profile, said securing fitting having a rectangular bottom of a height M, P and of a width N, R, comprising: i. two parallel securing legs having a distance L between them, said securing legs comprising lower means of engagement for engaging the lower side of said elongate profile, and an upper leg comprising upper means of engagement for engaging the upper side of the elongate profile, or ii. two parallel securing legs having a distance L between them, a longitudinal left leg protruding from the left lateral edge of the U- shaped securing fitting by a length M, P and a longitudinal right leg protruding from the left lateral edge by a length M, said right and left legs comprising means of engagement, wherein said at least one elongate tubular body is disposed inside a loop in the canvas and the canvas with the elongate tubular body is arranged in an elongate cavity of said at least one elongate profile so that the canvas extends from the longitudinal opening, and wherein one securing fitting is disposed in engagement with one locking groove and the means of engagement of the securing fitting is engaged with the elongate profile.

[0014] In one embodiment, the elongate tubular body is provided with two locking grooves, one adjacent to each end of the elongate tubular body.

[0015] The elongate tubular body has a diameter A and the locking grooves have a diameter E and a width C.

[0016] The at least one loop has a circumference of at least ATT.

[0017] The at least one longitudinal opening has a maximum aperture of G, with G < A.

[0018] In one embodiment, the securing fitting may be shaped as an elongate U- profile for engaging with the at least one elongate tubular body, said securing fitting further having a rectangular bottom of a height M and a width N, said securing legs forming a right securing leg and a left securing leg, said securing legs forming two lower terminal edges of the rectangular bottom, said left securing leg comprising a lower left leg protruding from the left securing leg and the right securing leg comprising a lower right leg protruding from the right securing leg, said right and left legs comprising said means of engagement, said upper terminal edge of said rectangular bottom comprising the upper leg protruding from the upper terminal edge of the rectangular bottom, said upper leg comprising the upper means of engagement.

[0019] Said at least one elongate profile has a height F, with F < M.

[0020] According to the invention, A > L > E.

[0021] Further features and advantages will be apparent from the appended claims.

Brief Description of the Drawings [0022] In the following, a brief description of the drawings is provided in order to facilitate the understanding of the present invention. The discussion below refers to the accompanying drawings, in which:

[0023] Fig. 1 A shows a side view of a section of an elongate tubular body,

[0024] Fig. 1 B shows an axial view of the elongate tubular body,

[0025] Fig. 2 shows a canvas having loops at the upper and lower end thereof, each loop surrounding a separate elongate tubular body,

[0026] Fig. 3A shows an axial view of an elongate profile having a tubular elongate body surrounded by a canvas arranged in a cavity of the elongate profile, [0027] Fig. 3B shows a perspective view of the elongate profile,

[0028] Fig. 3C shows a sectional view of a lower cavity of the elongate profile,

[0029] Fig. 4a shows an axial view of the elongate profile and, to the right, the same elongate profile including securing means in the form of a securing fitting mounted on the front end of the elongate profile,

[0030] Fig. 4b shows a side view of a section of the elongate profile and elongate tubular body together with the securing fitting of Fig. 4a,

[0031] Fig. 4c shows a side view of the securing fitting of Figs. 4a and 4b being engaged with the elongate tubular body and elongate profile,

[0032] Fig. 4d shows the same as Fig. 4c, but in a perspective view,

[0033] Fig. 4e shows a hanging system seen from the same side as in Figs. 4b - 4d, with the securing fitting being mounted on the elongate profile and being "locking ring engaged" with the elongate tubular body, and with a canvas being mounted to the elongate tubular body,

[0034] Fig. 4f shows a hanging system similar to that in Fig. 4e having securing fittings being engaged with both ends of the elongate profile and being locking ring engaged with both ends of the tubular elongate body,

[0035] Fig. 5a shows an axial view of the elongate profile and, to the right, the same elongate profile including a securing fitting mounted on the front end of the elongate profile, with the securing fitting extending to the lower surface of an upper elongate inner cavity of the elongate profile,

[0036] Fig. 5b shows a side view of a section of the elongate profile and elongate tubular body together with the securing fitting of Fig. 5a having a height P corresponding to the securing fitting of Fig. 5a, [0037] Fig. 5c shows a side view of the securing fitting of Figs. 5a and 5b, being engaged with the elongate tubular body and elongate profile,

[0038] Fig. 5d shows the same as Fig. 5c, but in a perspective view,

[0039] Fig. 5e shows a hanging system seen from the same side as in Figs. 5b - 5d, with the securing fitting being mounted on the elongate profile and being locking ring engaged with the elongate tubular body, and with a canvas being mounted to the elongate tubular body,

[0040] Fig. 5f shows a hanging system similar to that in Fig. 5e with the securing fitting engaged with both ends of the elongate profile and locking ring engaged with both ends of the tubular elongate body,

[0041] Fig. 6a shows a securing fitting having a height M and width N configured for engagement with an upper side and lower side of the elongate profile,

[0042] Fig. 6b shows a securing fitting having a height P and width N configured for engagement with a lower surface of an upper cavity of the elongate profile and a lower side of the elongate profile,

[0043] Fig. 6c shows a securing fitting having a height corresponding approximately to the height of the elongate profile and a width equal to R, said width including protruding legs having means of engagement for engaging the lateral surfaces of the elongate profile,

[0044] Fig. 6d shows a securing fitting having a small height corresponding approximately to the height of the lower cavity of the elongate profile and a width equal to R, said width including protruding legs having means of engagement for engaging the lateral surfaces of the elongate profile,

[0045] Fig. 7 shows an exemplary elongate profile,

[0046] Fig. 8 shows another exemplary elongate profile,

[0047] Fig. 9 shows a second embodiment of the hanging system according to the present invention,

[0048] Fig. 10 shows a third embodiment of the hanging system according to the present invention,

[0049] Fig. 11 shows a fourth embodiment of the hanging system according to the present invention.

Detailed Description of the Invention [0050] In the following, first a general embodiment of the present invention is discussed. Then specific embodiments are discussed with reference to the drawings.

[0051] The present invention aims to provide a hanging system for tarpaulins or canvases which is gentle on the canvas and therefore places low demands on the robustness thereof. Consequently, the canvas does not have to be made of plastic, so more environmentally friendly materials can be used for such a canvas.

[0052] A canvas according to the present invention is rectangular having upper and lower terminal edges. By pulling the upper and lower terminal edges inwards onto the canvas, upper and lower loops can be obtained. The folded-in edge can be sewn to the canvas, be glued to the canvas, or be fastened on the canvas in another careful manner.

[0053] An elongate tubular body having a length greater than the upper and lower terminal edges of the canvas can be threaded into the loops of the canvas, cf. Fig. 2.

[0054] If an elongate tubular body is threaded into the upper loop and another elongate tubular body is threaded into the lower loop, then a ready-to-mount canvas is obtained.

[0055] The lower end of the ready-to-mount canvas can be threaded into a longitudinal track of an elongate profile, and similarly the upper end of the ready-to-mount canvas can be threaded into a longitudinal track of another elongate profile so that the longitudinal tracks are opposite to each other.

[0056] The elongate tubular bodies must be slightly longer than the elongate profiles so that the one end of the elongate tubular bodies projects from the one side of the elongate profiles.

[0057] In the absence of a locking arrangement, the elongate tubular bodies would be able to move in the longitudinal tracks, which is undesirable, and therefore such a longitudinal horizontal movement must be prevented. On the other hand, unrestricted movement parallel to the lateral edges of the securing legs for the tubular elongate bodies is required.

[0058] A securing fitting may act as a locking arrangement to prevent axial movement of an upper tubular body disposed in an elongate profile, and a second securing fitting may act as a locking arrangement to prevent axial movement of a lower tubular body disposed in a second elongate profile, thereby also preventing horizontal movement of the canvas. In some cases, one may have a hanging system in which there is only an upper elongate profile having an elongate tubular body with a canvas mounted thereon in a cavity. In such a system, one securing fitting may be sufficient.

[0059] Each securing fitting comprises means for engaging with the elongate profiles and also for engaging with the elongate tubular bodies so that axial movement of the canvas and tubular body is prevented or substantially prevented. The securing fittings can be replaceable and reusable, and may also be attached permanently but then only in a configuration in which only one securing fitting is used for caging one elongate tubular body.

[0060] In one embodiment, the elongate tubular bodies are provided with locking grooves near the ends thereof, the diameters of said locking grooves being adapted for engaging with the securing fitting in that the securing fitting, at an end thereof, has an opening providing for a locking ring engagement between the securing fitting and tubular body in the same manner as a locking ring in a locking groove. The opening at the end of the securing fitting is rectangular having a horizontal upper lateral edge and vertical opposite lateral edges so that engagement between the securing fitting and locking grooves occurs between the vertical lateral edges of the opening, thereby achieving freedom of movement in the vertical direction. The term vertical refers to the views in the drawings.

[0061] Canvases to be mounted on walls, for example, may also need to be stretched horizontally. This can be achieved in that elongate profiles having internal elongate tubular bodies are fixed to a canvas at the vertical sides thereof.

[0062] The invention will now be described in more detail with reference to the accompanying drawings.

[0063] Fig. 1 a shows a tubular elongate body 10 such as a tube or tubular rod. The drawing only shows an end section of such a tubular elongate body. Near the end of the tubular elongate body 10 a locking groove 11 is seen, which locking groove has a depth D and width C. The locking groove has a diameter E which is necessarily smaller than the diameter of main body 10. The diameter of the main body is A, with A typically being between 5 and 20 mm, more specifically between 5 and 10 mm. In practical tests, the elongate tubular body 10 has been an 8.5 mm diameter tube.

[0064] A tubular elongate body 10 according to the invention is provided with a locking groove 11 at both ends.

[0065] Fig. 1 b shows an axial view of a tubular elongate body of diameter A.

[0066] Fig. 2 shows a ready-to-mount canvas, that is, a canvas 20 having a loop 22 at two opposite lateral edges. The drawing shows that a tubular elongate body 10 is located inside the loops 22. The ready-to-mount canvas with the elongate tubular bodies 10 is shown in an axial direction. It can be seen from the drawing that there is an overlap flap 23 from the loop that is fastened to the canvas. The overlap flap can be fastened by adhesive binding or sewing, or a combination thereof. It is essential that the fastening is gentle and hence does not place prohibitively strict requirements of a robust canvas.

[0067] Fig. 3A shows an exemplary elongate profile 30 that can be used for mounting a ready-to-mount canvas. In the drawing, a ready-to-mount canvas including an upper elongate tubular body 10 located in a cavity can be seen. The ready-to-mount canvas is threaded into the cavity from the side parallel to the longitudinal direction of the elongate profile, which is possible since the cavity extends along the entire length of the elongate profile and is provided with a longitudinal opening.

[0068] The elongate profile 30 has a height F.

[0069] Fig. 3b shows a perspective view of the elongate profile 30. It appears from the drawing that the elongate profile is provided with two cavities. The longitudinal opening 33 is seen as an slot in the lower cavity 31. The opening, also shown in Fig. 3a, is suitable for inserting a canvas 21 , as shown in Fig. 3a.

[0070] Fig. 3c shows a sectional view of the lower section of the elongate profile.

The width of the longitudinal opening is G. The height FI inside the cavity must be greater than A, as must the width J of the cavity.

[0071] The elongate profile 30 shown in Figs. 3a - 3c can be replaced by other elongate profiles 100, 110.

[0072] Fig. 4a, left side, shows an axial view of the elongate profile 30 of Fig. 3a with a tubular elongate body 10 in the lower cavity. To simplify the drawing, canvas 20 is not shown in Fig. 3a. [0073] On the right side of the drawing, the terminal edge of the elongate profile is partially covered by a securing fitting 40. The securing fitting has a substantially rectangular main section 42 having a left lateral edge 44v and a right lateral edge 44h. The width of the securing fitting and the rectangular main section is N. In the lower part of main section 42 two legs are seen, a left securing leg 45v and a right securing leg 45h. Between said securing legs can be seen a tubular elongate body 10. The distance between the securing legs is L. The drawing shows that L is smaller than the diameter of the tubular elongate body, which is possible because the elongate tubular body has a locking groove 11 having a diameter smaller than L. As a result of this design, the lateral edges of securing legs 45v, 45h will enter into locking ring engagement with locking groove 11 of the elongate tubular body 11 during assembly, as shown in the right part of Fig. 4a.

[0074] In the drawing, the width N is approximately equal to the width of the elongate profile 30 and lateral edges 44v and 44h are shown to be parallel. N may be smaller than the width of the elongate profile. An absolute requirement on the securing fitting is that L is smaller than A and that the securing legs, when engaged with the elongate profile, are sufficiently sturdy to prevent horizontal movement of the elongate tubular body.

[0075] In one embodiment, the securing fitting can be envisioned to be designed in such a manner that there will be gaps between lateral edges 44v and 44h of the securing fitting and the inner vertical side walls of the elongate profile to ensure drainage, so that water does not collect in the cavities of the elongate profile. Such drainage can also be obtained in that the securing fitting has openings allowing water to drain from the upper cavity. The lateral edges of the securing fitting may have a convex shape so that the lateral edges 44v, 44h are narrower than J in the area at the bottom of the upper cavity.

[0076] The right part of Fig. 4a shows that elongate tubular body 10 has a freedom of movement parallel to the lateral edges of the securing legs, which is desirable, whereas at an angle that is not parallel to the securing legs, the elongate tubular body 10 will be fixed. This is also the case axially for the elongate tubular body as a result of securing fitting 40.

[0077] Fig. 4b shows a side view of the elongate profile 30 with the elongate tubular body 10 disposed inside the longitudinal lower cavity 31. The drawing further shows securing fitting 40 having a height M of the bottom, with M being slightly larger than F. The securing fitting is a U-profile having an elongate (M) bottom and three lateral legs, one upper and two lower lateral legs. The upper leg 43a is provided with upper means of engagement 41a for engaging the upper lateral edge of elongate profile 30. The means of engagement are intended to make sure that the securing fitting is securely anchored in the elongate profile. The means is shown as claws, which is one of a large number of options. For example, screws can be used, alone or in combination with claws, adhesives can be used, or combinations thereof.

[0078] From Fig. 4b, in combination with Fig. 4a, it can be deduced that there are two lower legs, one right leg 43bh with associated right means of engagement 41 bh and one left leg 43bv with associated left means of engagement 41 bv.

[0079] The lower means of engagement 41 bv, 41 bh are designed for engaging with the lower side of the elongate profile.

[0080] Fig. 4c shows securing fitting 40 anchored to the elongate profile 30. The drawing is a strict side view. Securing fitting 40 is locking ring engaged with the elongate tubular body 10.

[0081] Fig. 4d shows the same as Fig. 4c, but in a perspective view.

[0082] Fig. 4e shows a hanging system including components as shown in Figs. 1a - 4d. At the top of the drawing, to the left, the elongate profile is seen as shown in Figs. 4c and 4d, with the elongate tubular body 10 being shown locking ring engaged with securing fitting 40. The elongate tubular body has a canvas mounted thereon as shown in Fig. 2, but in this case seen perpendicularly to the longitudinal axis of elongate tubular body 10. The canvas 21 must have an upper edge that is cut sufficiently straight in the top to enable creation of a loop 22 adapted for the elongate tubular body 10. If the canvas does not use a lower elongate profile, then no geometrical requirements are placed on canvas 21 other than that said loop 22 can be formed. Canvas 21 extends from the longitudinal opening 31 of the elongate profile 30. The right part of Fig. 4e shows the right terminal edge of the tubular elongate body 10 and the right end of the elongate profile 30. No securing fitting 40 is mounted at this end since axial movement of the tubular elongate body will normally be prevented by a securing fitting. [0083] As regards obtaining the desired effect, it is indifferent whether the securing fitting is mounted on the right or left side in Fig. 4e.

[0084] Fig. 4f is similar to Fig. 4e, with the exception that Fig. 4f shows the use of both a right and a left securing fitting 40.

[0085] Figs. 5a - 5f corresponds essentially to Figs. 4a - 4f, except from the design of securing fitting 50.

[0086] The securing fitting shown in Figs. 5a - 5f has a height P, with P being sufficient for the upper leg 53a to be able to engage with the lower surface of the upper cavity of the elongate profile 30 while at the same time the two lower legs 43bv, 43bh are able to engage with the lower side of elongate profile 30. The requirements on securing fitting 50 are similar to those on securing fitting 40 and the dimensions of securing fitting 50 are similar to those of the lower part of securing fitting 40.

[0087] Figs. 6a through 6d show a non-exhaustive selection of securing fittings. Fig. 6a shows securing fitting 40 used in the examples shown in Figs. 4a - 4f. The securing fitting is shown to include means of engagement, which means of engagement does not prevent the securing fitting from being replaceable and reusable.

[0088] Fig. 6b shows securing fitting 50 used in the examples shown in Figs. 5a - 5f.

[0089] Fig. 6c shows securing fitting 80, which has a width R. Securing fitting 80 employs the same locking ring principle between the securing fitting and elongate tubular body as securing fittings 40, 50 described above. The same requirements apply as regards the ability to prevent axial movement of elongate tubular body 10. As in this case the securing legs are not shown to include lower legs 43bv, 43bh, the requirements on the material of the legs will be stricter than for securing fittings 40 and 50. This is because the securing legs are free ends of securing fitting 80.

[0090] Securing fitting 80 differs substantially from securing fittings 40 and 50 in that it is provided with lateral legs 83v and 83h which both include means of engagement on the insides thereof for engaging with the lateral surfaces of elongate profile 30. Lateral legs 83v and 83h may extend along the entire length of securing fitting 80. Flowever, it is sufficient for them to extend far enough for the intended function of the securing fitting to be achieved. It would be advantageous if the lateral legs at least protrude beyond the securing legs, so as to strengthen the securing legs.

[0091] A solution incorporating lateral legs does not place any requirements on the height other than that the intended effect is obtained. Fig. 6d shows a securing fitting 90 for which the ratio between the width R and height differs substantially from that in Fig. 6c. As indicated, the length of securing fittings having lateral legs can be varied and there is therefore no fundamental differences between securing fitting 80 and securing fitting 90.

[0092] Figs. 6a through 6d show securing fittings having lateral legs or legs at the top and bottom. Flowever, a combination that includes lateral legs on three or four sides of the securing fitting is conceivable.

[0093] Fig. 7 shows an exemplary elongate profile 100 having an elongate cavity 102 adapted for receiving a ready-to-mount canvas with an elongate tubular body 10. The lateral edges of cavity 102 are larger than the diameter A of the elongate tubular body 10. Also shown is a longitudinal opening from which canvas 20 will extend. In the drawing, the cavity is shown facing upwardly, which is a configuration adapted for the lower part of a ready-to-mount canvas. Figs. 4a-4f show a configuration adapted for the upper part of a ready-to-mount canvas. The same elongate profile can be used for the upper and lower parts of a ready-to-mount canvas.

[0094] The design of securing fittings can easily be adapted to the elongate profile 100.

[0095] Fig. 8 shows another exemplary elongate profile 110. If a profile like this is used, then the securing fitting must be designed differently in that the upper and lower lateral edges are curved and that the means of engagement are correspondingly able to engage with a curved upper side.

[0096] Supplemental^ to the first embodiment with the two variant securing means in the form of (locking) grooves in body 10 and two different securing fitting designs, Figs. 9, 10, and 11 show other embodiments of securing means for the hanging system. The securing means provides for or ensures a certain vertical movement of the tubular elongate body 10 carrying canvas 21 , and at the same time prevents or restricts axial or horizontal movement of the tubular elongate body 10 in the hanging system. In Fig. 9, securing means in the form of a bolt or screw 36 and holes are illustrated. A first hole is created (e.g. drilled) through at least an end of the outer short longitudinal side 35 of elongate profile 30 in such a manner that the headed bolt or screw 36 is insertable completely through the first hole to then be inserted through a second hole created (e.g. drilled) through the end of at least the same profile 30 to the middle short longitudinal side 34 in such a manner that the externally threaded body of the bolt or screw 36 is insertable through the second hole to then be screwed into a third, internally threaded hole, which has been created in tubular elongate body 10. The internal threads of the third hole in tubular elongate body 10 must match or fit the external threads of bolt or screw 36. The second hole must be shaped (i.e. must have a certain diameter) in such a manner that this second hole prevents or restricts axial or horizontal movement of tubular elongate body 10 with a certain axial or horizontal play (being determined by the diameter of the second hole minus the outer diameter of the externally threaded body of bolt or screw 36). It is preferable for the axes of the first and second holes to be coincident to allow for an easy mounting of bolt or screw 36 to the tubular elongate body 10. The degree of freedom of movement of the vertical movement of tubular elongate body 10 is determined by the height H of the lower cavity 31 minus the diameter A of tubular elongate body 10. The third hole in the tubular elongate body 10 may be drilled partially or entirely through body 10. Fig. 10 shows another embodiment of the second hanging system according to the present invention. In this example, the securing means is in the form of a rivet 37 and hole. The rivet 37 may be headed or headless. In this case, rivet 37 is inserted through the first hole in the outer short longitudinal side 35 and then threaded partially through the second hole in the middle short longitudinal side 34 to finally be nailed or hammered into the third hole in tubular elongate body 10. In this case, the second hole must be shaped (i.e. must have a certain specific diameter) in such a manner that this second hole prevents or restricts axial or horizontal movement of tubular elongate body 10 with a certain axial or horizontal play (being determined by the diameter of the second hole minus the diameter of rivet 37 (i.e. the elongate body of the rivet)). In this example, the diameter of the third hole must be slightly smaller than the diameter of rivet 37 to thereby ensure a fixed anchoring of rivet 37 to body 10. Bolt or screw 36 (Fig. 9) and rivet 37 (Fig. 10) should be perpendicular/vertical to body 10. The same should be true for the holes. In the two embodiments, it is preferred that the third hole, threaded or not, be drilled partially into tubular elongate body 10. Other securing means that provides for a certain vertical movement of tubular elongate body 10 with canvas 21 and at the same time prevents or restricts axial or horizontal movement of tubular elongate body 10 in the hanging system are also possible. Fig. 11 shows a fourth embodiment in which the third hole has been drilled completely through body 10, i.e. extends entirely through body 10. In a first variant a headed bolt 38 is threaded through the third hole from above, and a screw 39 is screwed or otherwise securely fastened to the headed bolt 38 on the lower side of the third hole in body 10. In this case, the third hole can be internally threaded. In a second alternative variant, a headed rivet 38 is threaded through the third hole from above, and when rivet 38 has been put in place, a second head 39 is formed or created by hammering on the lower side of the third hole in body 10. In this case, the third hole can be unthreaded. Herein, reference numerals 38 and 39 are used to indicate either a bolt or a rivet, and a screw or a formed rivet head, respectively.

[0097]

Old claims to become part of the description An elongate tubular body (10) for use in hanging canvases, the elongate tubular body comprising a locking groove adjacent to one end of the tubular body or both ends of the tubular body, said locking groove or two locking grooves (11) being located at a distance B from the end of the tubular body and said locking groove or two locking grooves being endless recesses so that a diameter of the tubular body at said one recess or two recesses is E, with E <A, A being the diameter of the tubular body, and the locking groove having a width C. A securing fitting (40,50,80,90) for releasable engagement with an elongate tubular body (30, 100) for use in hanging canvases, and for releasable engagement with an elongate profile, the securing fitting (40, 50, 80, 90) comprising: a) a right securing leg (45h) and a left securing leg (45v) parallel to the right securing leg, said securing legs each having a free end and being connected at the end opposite to the open end, said opposite and parallel securing legs having a distance L between them and being adapted to function as a locking ring with unrestricted movement parallel to the straight and opposite lateral edges of the securing legs for a custom member provided with a locking groove. b) at least one of said securing legs being provided with means of engagement at one or two lateral edges. The securing fitting (40, 50, 80, 90) according to claim 2, wherein securing fitting is shaped as an elongate U-profile, said securing fitting (40) having a rectangular bottom (42) having a height M or P and a width greater than L and less than or equal to N or R, the securing fitting (40) further comprising the right securing leg (45h) and the left securing leg (45v), said securing legs (45v, 45h) being parallel and forming two lower terminal edges of the rectangular bottom (42). The securing fitting according to claim 3, wherein the left securing leg comprises a lower left leg (43bv) protruding from the left securing leg (45v) and the right securing leg comprises a lower right leg (43bh) protruding from the right securing leg (45h), said right leg (43bh) and left leg (43bv) comprising means of engagement (41 bv, 41 bh), the upper terminal edge of said rectangular bottom (42) comprising an upper leg (43a) protruding from the upper terminal edge of the rectangular bottom (42), said upper leg (43a) comprising means of engagement (41a). The securing fitting according to claim 3, wherein the rectangular bottom (42) of the U-shaped securing fitting comprises: a) a longitudinal left (83v, 93v) leg protruding from a left lateral edge of the U-shaped securing fitting by a length M, P, and b) a longitudinal right leg protruding from the left lateral edge by a length M, P, said right leg and left leg comprising means of engagement. The securing fitting according to any one of claims 2 - 5, wherein the securing fitting is made of a resilient material such as spring steel. The securing fitting according to claims 2 - 6, wherein said means of engagement (41a, 41 bv, 41 bh) comprise gripping claws. A hanging system for hanging canvases, comprising: a) a canvas having at least one straight upper terminal edge, wherein: i. said at least one upper terminal edge is folded inwards and said terminal edge is fixed to the canvas so as to form a loop (22), b) at least one elongate tubular body, said elongate tubular body at least comprising one locking groove (11) adjacent to the one end of the tubular body located at a distance B from the end of the tubular body, the locking groove being an endless recession, c) at least one elongate profile (30, 100, 110) having an upper side and a lower side, at least comprising one cavity (31, 102, 112) extending along the entire length of the profile on the lower side thereof, said cavity (31 , 102, 112) comprising a longitudinal opening ( 33, 101 , 111 ) extending along the entire length of the profile (30, 100, 110), d) at least one securing fitting (40, 50, 80, 90) shaped as an elongate U- profile, said securing fitting having a rectangular bottom having a height M or P and a width greater than L and less than or equal to N or R, comprising: i. two parallel securing legs (45v, 45h) having a distance L between them, said securing legs comprising lower means of engagement (41 bv, 41 bh) for engaging the lower side of the elongate profile, and an upper leg ( 43a) comprising upper means of engagement (41a) for engaging the upper side of the elongate profile, or ii. two parallel securing legs having a distance L between them, a longitudinal left leg projecting from the left lateral edge of the U- shaped securing fitting by a length M or P and a longitudinal right leg protruding from the left lateral edge by a length M or P, said right leg and left leg comprising means of engagement, wherein said at least one elongate tubular body is arranged in a loop (22) in the canvas (20) and the canvas with the elongate tubular body (10) is disposed inside an elongate cavity in the at least one elongate profile so that canvas (20) extends from the longitudinal opening, and wherein one securing fitting (40) is arranged in engagement with one locking groove (11 ) and said means of engagement of the securing fitting is engaged with the elongate profile. The hanging system according to claim 8, wherein a second securing fitting (40) is arranged in engagement with a second locking groove (11) of an elongate tubular body and said means of engagement of the second securing fitting is engaged with the elongate profile. The hanging system according to claim 8 or 9, wherein: a) said elongate tubular body has a diameter A, and b) said locking groove or locking grooves (11 ) have a diameter E and a width C. The hanging system according to claim 8, where said at least one loop (22) has a circumference of at least ATT. The hanging system according to claims 7 - 11 , wherein said at least one longitudinal opening (33, 101 , 111) has a largest aperture G, with G < A. The hanging system according to any one of claims 7 - 12, wherein the securing fitting (40) is shaped as an elongate U-profile for engaging with the at least one elongate tubular body (30, 100), said securing fitting further having a rectangular bottom (42) having a height M and a width larger than L and less than or equal to N, said securing legs forming a right securing leg (45h) and a left securing leg (45v), said securing legs (45v, 45h) forming two lower terminal edges of the rectangular bottom (42), said left securing leg comprising a lower left leg (43bv) protruding from said left securing leg (45v) and said right securing leg comprising a lower right leg (43bh) protruding from said right securing leg (45h), said right leg (43bh) and left leg (43bv) comprising said means of engagement (41 bv, 41 bh), said upper terminal edge of said rectangular bottom (42) comprising the upper leg (43a) projecting from the upper terminal edge of the rectangular bottom (42), said upper leg (43a) comprising said upper means of engagement (41a). The hanging system according to claim 13, wherein said at least one elongate profile (30, 100, 110) has a height F, with F <M. The hanging system according to any one of claims 7 - 14, wherein A > L> E.

Claims

1. A hanging system for hanging canvases, comprising: a canvas (20, 21) having at least one straight upper terminal edge, said at least one upper terminal edge being folded inwards and said terminal edge being fixed to the canvas (20, 21) so as to form a loop (22), at least one elongate tubular body (10), at least one elongate profile (30, 100, 110) having an upper side and a lower side, said at least one elongate profile (30, 100, 110) comprising at least one elongate cavity 10 (31 , 102, 112) extending along the entire length of the profile on the lower side thereof, and said cavity (31 , 102, 112) comprising a longitudinal opening (33, 101, 111) extending along the entire length of the profile (30, 100, 110), said at least one elongate tubular body (10) being arranged in the loop (22) of canvas (20, 21), and said canvas (20, 21) with the elongate tubular body (10) being disposed inside said at least one elongate cavity (31 , 102, 112) in said at least one elongate profile (30, 100, 110) so that the canvas (20, 21) projects from said longitudinal opening (33, 101, 111), and securing means arranged at a distance (B) from an end of the at least one elongate tubular body (10) and located on at least one of said at least one elongate tubular body (10) and/or said at least one elongate profile (30, 100, 20 110), said securing means being configured to prevent or restrict axial or horizontal movement of body (10) with canvas (20, 21) and further being configured to allow for a certain movement of body (10) with canvas (20, 21) in a vertical direction, the freedom of movement of the vertical movement of the at least one tubular elongate body (10) being determined by the height (H) of said at least one cavity 25 ( 31 , 102, 112) minus the diameter (A) of said at least one tubular elongate body (10).

2. The hanging system according to claim 1 , wherein the securing means is in the form of a headed bolt or screw (36) and hole, said bolt or screw (36) being inserted through a hole 30 created through and at a distance (B ) from one end of the upper short longitudinal side (34) of the at least one cavity (31 , 102, 112) in such a manner that the externally threaded body of the bolt or screw (36) is suitable for being inserted through said hole to then be screwed into another, internally threaded hole created in said tubular elongate body (10), the internal threads of the second hole in the tubular elongate body (10) matching the external threads of the bolt or the screw (36), the hole in the upper short longitudinal side (34) of the at least one cavity (31 , 102, 112) having a certain diameter, so that this hole prevents or restricts axial or horizontal movement of the tubular elongate body (10) with a specific axial or horizontal play defined by the diameter of the hole minus the outer diameter of the externally threaded the body of bolt or screw (36).

3. The hanging system according to claim 2, wherein the second hole of the body (10) is drilled partially through the body (10), and part of the bolt or screw (36) is screwed therein.

4. The hanging system according to claim 2, wherein the second hole of the body (10) is drilled entirely through the body (10), and a nut (39) is screwed or securely fixed to the bolt (36, 38) at the lower side of the second through hole the body (10).

5. The hanging system according to claim 1 , wherein the securing means is in the form of a headed or headless rivet (37) and hole, said rivet (37) being suitable for being threaded partially through a hole created through and at a distance (B ) from one end of the upper short longitudinal side (34) of the at least one cavity (31 , 102,

112) to finally be nailed or hammered into a second hole in the tubular elongate body (10), said hole in the upper short longitudinal side (34) of the at least one cavity (31 , 102, 112) having a certain diameter, so that this hole prevents or restricts axial or horizontal movement of the tubular elongate body (10) with a certain axial or horizontal play determined by the diameter of the hole minus the diameter of the elongate body of the rivet (37), the diameter of the second hole in the body (10) being slightly smaller than the diameter of the elongate body of the rived (37) to thereby secure a fixed anchoring of part of the rivet (37) into the body (10).

6. The hanging system according to claim 1 , wherein the securing means is in the form of a headed rivet (38) and hole, the rivet (38) being suitable for being threaded partially through a hole created through and at a distance (B) from an end of the upper short longitudinal side (34) of the at least one cavity (31 , 102, 112), to then be threaded further through a through hole in said tubular elongate body (10), with a second head (39 ) being formed by hammering on the opposite side of the rivet (38) and on the lower side of the through hole of the body (10), the hole in the upper short longitudinal side (34) of the at least one cavity (31 , 102, 112) having a specific diameter so that this hole prevents or restricts axial or horizontal movement of the tubular elongate body (10) with a specific axial or horizontal play determined by the diameter of the hole minus the diameter of the elongate body of the rivet (38).

7. The hanging system according to claim 1 , wherein the securing means is in the form of securing fittings 10 and locking grooves, with at least one locking groove (11 ) being formed in the elongate tubular body (10), said at least one locking groove (11 ) being adjacent to the one end of the tubular body (19) and being arranged at a distance (B) from the end of the tubular body (10), and said locking groove being an endless recess, at least one securing fitting (40, 50, 80, 90) being arranged in engagement with the locking groove (11 ) and the means of engagement of the securing fitting (40) being engaged with the elongate profile (30, 100, 110), wherein said at least one securing fitting (40, 50, 80, 90) is shaped as an elongate U-profile, with said securing fitting having a rectangular bottom having a height (M) or (P) and a width greater than the distance (L) between two parallel securing legs and less than or equal the width (N) of the bottom of the U-shaped securing fitting (40, 50) or the width R of the bottom of the U-shaped securing fitting (80, 90) having lateral edges, said least one securing fitting (40, 50, 80, 90) comprising: two parallel securing legs (45v, 45h) having a distance (L) between them, the securing legs comprising lower means of engagement (41 bv, 41 bh) for engaging the lower side of said elongate profile, and an upper leg (43a) comprising upper means of engagement (41a) for engaging the upper side of said elongate profile, or two parallel securing legs having a distance (L) between them, a longitudinal left leg projecting from the left lateral edge of the U-shaped securing fitting by a length (M) or (P), and a longitudinal right leg projecting from the left lateral edge by a length (M) or (P), said right and left leg comprising means of engagement.

8. The hanging system according to claim 7, wherein the locking groove (11) has a diameter (E) and a width (C).

9. The hanging system according to any of claims 1 - 8, wherein the at least one loop (22) has a circumference of at least ATT.

10. The hanging system according to any of claims 1 - 9, wherein the longitudinal opening (33, 101, 111) has a largest aperture G, with G <A.

10. The hanging system according to any of claims 7 - 8, wherein the at least one elongate profile (30, 100, 110) has a height (F), with F < M.

11. The hanging system according to claim 8, wherein A > L > E.