Arrangement with at least one profile for at least one cover element and with said at least one cover element

The integration of a C-shaped guide rail into window profiles addresses aesthetic and functional issues by enhancing structural integrity and thermal insulation while maintaining a compact design and harmonious movement.

EP4665935B1Active Publication Date: 2026-03-04JULIUS BLUM GMBH
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-04-10
Publication Date
2026-03-04

AI Technical Summary

Technical Problem

Existing window profiles have aesthetic and functional issues, including visible fittings, requirement of installation space, and reduced torsional stiffness, particularly in plastic profiles.

Method used

A profile design with a C-shaped guide rail integrated into the profile body for attachment to a fixed structure, allowing for a compact and aesthetically pleasing installation, enhanced torsional stiffness, and harmonious movement patterns, using materials like aluminum or plastic, with optional seals and insulation layers.

Benefits of technology

The integrated guide rail enhances the profile's structural integrity and aesthetic appeal while saving installation space, providing improved thermal insulation and harmonious movement of cover elements.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a profile (1) for at least one cover element (2), preferably for a window, for covering at least one opening (40) in a fixed structure (5), comprising at least one interface (3) for fastening the at least one cover element (2) and at least one profile body (6) facing the fixed structure (5) in the assembled state, wherein the at least one profile body (6) has at least one guide rail (7), which is substantially C-shaped in cross section, for guiding at least one carriage (8).
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Description

[0001] The present invention relates to an arrangement with at least one profile for at least one cover element, preferably for a window, for covering at least one opening in a stationary structure and at least one, preferably substantially rectangular, cover element, according to the preamble of claim 1.

[0002] Profiles, for example for windows, are well-known from the prior art. However, these have a number of disadvantages: The profiles are connected to the fixed structure via fittings, which, for example, allow a pivoting movement around a vertical axis. The fittings are visible to the user in every pivoting position of the profile, which diminishes the aesthetic impression created by the profile and any associated cover element. Furthermore, installation space is required for attaching the fitting to both the profile and the fixed structure, space which is then lost to the surface area of ​​the cover element.

[0003] Another problem, especially with plastic profiles, is that they have reduced torsional stiffness.

[0004] The object of the present invention is to provide a profile that is improved compared to the prior art and in which the disadvantages known from the prior art are at least partially eliminated. Furthermore, an arrangement comprising at least one such improved profile and at least one cover element is to be provided.

[0005] This problem is solved by the features of claim 1.

[0006] Accordingly, it is provided that the profile for at least one cover element, preferably for a window, for covering at least one opening in a fixed structure, comprises at least one interface for fastening the at least one cover element and at least one profile body facing the fixed structure in the assembly state, wherein the at least one profile body has at least one guide rail, which is substantially C-shaped in cross-section, for guiding at least one carriage.

[0007] Because the profile includes at least one guide rail, a connection interface is provided through which the profile can be attached to the fixed structure. Furthermore, the integration of the guide rail into the profile body results in a compact design, saving installation space that can then be used for the surface area of ​​the cover element. At the same time, the guide rail is at least partially concealed by the profile body, allowing for aesthetically pleasing architectural designs. Another significant advantage, particularly with plastic profile bodies, is that the guide rail can be used to stiffen the profile body, thus fulfilling an additional function besides its primary role of guiding a carriage.Furthermore, compared to tilt fittings, the guide rail allows the user to experience harmonious movement patterns of at least one cover element.

[0008] Advantageous embodiments consist in the at least one guide rail being formed integrally within the at least one profile body and / or being integrated into the at least one profile body in the form of at least one insert. In a one-piece design, for example, a channel can be provided in the profile body, which functions as a guide rail. The use of an insert is particularly advantageous when the profile body and the guide rail are made of different materials, e.g., aluminum / steel or plastic / steel.

[0009] Preferably, at least one profile body is made of aluminum, preferably an extruded aluminum profile, and / or of at least one plastic, and / or wherein the profile body is designed as a hollow profile body. Aluminum conveys a high-quality impression, especially in window construction. Plastic has advantageous thermal insulation properties. The use of a hollow profile body is also advantageous from a thermal insulation perspective, as insulation made of air cushions and / or insulating materials can be integrated.

[0010] Additionally, the profile can have at least one outer seal for contact with the stationary structure, preferably at the front.

[0011] It has proven advantageous that the at least one interface has at least one, preferably two, seals, preferably made of silicone, and / or at least one support profile, preferably made of aluminum, for supporting the at least one cover element, and / or at least one, preferably material-bonded, holding device, preferably in the form of a double-sided adhesive tape.

[0012] Soft materials, not just silicone, are suitable for the at least one seal. For example, the at least one seal could also be made of EPDM (ethylene propylene diene monomer rubber) or rubber.

[0013] Additionally, the profile may have at least one support structure arranged between the at least one interface and the at least one profile body, preferably comprising at least one insulation layer and / or being made of at least one plastic. The support structure can serve as a thermal break.

[0014] According to the invention, the arrangement comprises at least one profile and at least one, preferably substantially rectangular, cover element, wherein the at least one cover element is attached to the at least one profile via the at least one interface. Preferably, the at least one cover element is designed as a window, in particular comprising triple insulating glass.

[0015] According to an advantageous embodiment of the arrangement, the at least one cover element has at least one, preferably two, outer edge, at least one, preferably substantially cuboid, recess into which the at least one profile is inserted, preferably wherein the at least one profile is covered by the at least one cover element on at least two side surfaces. This embodiment has a particularly appealing shape, since the at least one profile can be substantially completely covered outwards by the at least one cover element, at least in one closed state.

[0016] Additionally, it may be provided that the at least one cover element has two essentially horizontal outer edges in the mounting position, along each of which at least one profile is arranged.

[0017] According to the invention, the arrangement comprises at least one, preferably more than one, guide device, wherein the at least one guide device has at least one carriage, preferably with at least one rolling element, for slidable mounting in the at least one guide rail of the profile, preferably in a longitudinal direction of the at least one guide rail, and at least one support body for attaching the at least one guide device to the stationary structure. By means of such a guide device, the profile and the cover element arranged thereon can be attached to the stationary structure in a technically simple and compact form. Preferably, more than one such guide device is used, e.g., two or four guide devices.In the case of an essentially rectangular cover element, the use of one guide device per corner is advantageous, preferably wherein two of the four guide devices are arranged in a mirror-symmetrical manner to the other two guide devices, so that in two guide devices the support body is arranged on the stationary structure and in the other two guide devices the support body is arranged on at least one cover element.

[0018] According to the invention, the at least one carriage and the at least one support body are connected to each other via at least one articulated lever mechanism, wherein the at least one articulated lever mechanism has at least two support levers articulated to each other via a first articulated axis, and at least two drive levers articulated to each other via a second articulated axis, preferably wherein the first articulated axis and the second articulated axis are essentially orthogonal to each other.

[0019] Additionally, the arrangement may include at least one stock profile body for attachment to the stationary structure, preferably wherein the at least one stock profile body includes at least one stock guide rail for guiding at least one carriage, and particularly preferably wherein the at least one stock guide rail, which is substantially C-shaped in cross-section, is arranged substantially parallel to the at least one guide rail of the at least one profile. The at least one stock guide rail may be formed integrally within the at least one stock profile body and / or be integrated into the at least one stock profile body in the form of at least one insert.

[0020] It is advantageous for the at least one frame profile body to have at least one central seal for contact with the at least one profile body of the at least one profile, and / or to be made of aluminum and / or at least one plastic, and / or to have at least one frame support body, preferably made of at least one plastic, and / or to comprise at least one outer partial profile facing the at least one cover element and at least one inner partial profile, preferably wherein the two partial profiles are connected or connectable to each other via at least one connector, preferably made of at least one plastic, and / or to have at least one insulation layer. By providing at least one outer partial profile facing the at least one cover element and at least one inner partial profile, the frame profile body can be modularly adapted to different installation depths.

[0021] It can be advantageously provided that the arrangement has at least one reveal which covers the at least one stock profile body, preferably wherein the at least one reveal is made of aluminium and / or at least one plastic, and / or has at least one inner seal for contact with the at least one profile body of the at least one profile.

[0022] It has proven particularly advantageous that the arrangement comprises at least one fixed structure with at least one opening, wherein the at least one cover element is movably mounted between a closed position in which the cover element substantially covers the at least one opening and an open position in which the at least one cover element is substantially orthogonally spaced from the at least one opening, and preferably a sliding position in which the at least one cover element is arranged laterally offset from the at least one opening, preferably wherein the at least one cover element is recessed substantially flush with the surface in the fixed structure in the closed position.

[0023] Further details and advantages of the invention are explained in more detail below with reference to the figures and the drawings. These show: Fig. 1 shows a first embodiment of an arrangement with a stationary structure and a cover element in a perspective view; Figs. 2 to 4 show the first embodiment in a side view. Fig. 2 ) and a cross-sectional view along the cross-sectional plane 49 ( Fig. 3 ), whereby the Fig. 4 Fig. 5 shows an enlarged section 50 of the cross-sectional view, Fig. 5 a second embodiment in a cross-sectional view, wherein the section 50 is shown enlarged, Figs. 6 to 8 a further embodiment of an arrangement with a stationary structure and a cover element, wherein the cover element is in a closed position ( Fig. 6 ), a disclosure ( Fig. 7 ) and in a shift position ( Fig. 8 ) is arranged, each in a perspective view, Figs. 9 to 11 show an embodiment of an arrangement consisting of two guide rails and two stock guide rails, which are connected to each other via four guide devices, wherein the arrangement is in Fig. 9 in the closed position, in Fig. 10 in the disclosure and in Fig. 11 Figures 12 to 14 show an embodiment of a guide device in the closed position, each in a perspective view, with the section 51 shown enlarged, and Figures 12 to 14 show an embodiment of a guide device in the closed position ( Fig. 12 ), the disclosure ( Fig. 14 ) and an intermediate position ( Fig. 13 ), each in a perspective view.

[0024] Only the embodiments shown in Figures 6-14 are part of the present invention.

[0025] Fig. 1 bis 4 Figure 1 shows a first embodiment of an arrangement 15 with at least one profile 1 and at least one, preferably substantially rectangular, cover element 2, wherein the at least one cover element 2 is attached to the at least one profile 1 via the at least one interface 3, preferably wherein the at least one cover element 2 is designed as a window, in particular comprising triple insulating glass. In the case of triple insulating glass, three panes of glass 46 are provided.

[0026] The cover element 2 is designed to cover an opening 40 in the fixed structure 5.

[0027] The profile 1 comprising at least one interface 3 for fastening the at least one cover element 2 and at least one profile body 6 facing the fixed structure 5 in the assembly state, wherein the at least one profile body 6 has at least one guide rail 7, which is substantially C-shaped in cross-section, for guiding at least one carriage 8.

[0028] The at least one guide rail 7 is integrated into the at least one profile body 6 in the form of at least one insert.

[0029] The at least one profile body 6 is made of aluminium, preferably of an aluminium extrusion profile and is designed as a hollow profile body.

[0030] The profile 1 has at least one outer seal 9 for contact, preferably at the end face, with the stationary structure 5.

[0031] The at least one interface 3 for attaching the at least one cover element 2 has seals 10, preferably made of silicone, wherein a first seal 10 is arranged between an end face of the cover element 2, preferably an end face of a front glass element of the cover element 2, and at least one support profile 11, and a further seal 10 is arranged between a side face of the cover element 2, preferably a side face of a front glass element of the cover element 2, and the at least one support profile 11. The two seals 10 are separated from each other.

[0032] The at least one support profile 11, preferably made of aluminium, is designed to support the at least one cover element 2.

[0033] The interface 3 has at least one, preferably material-bonded, holding device 12, preferably in the form of a double-sided adhesive tape, preferably wherein the holding device 12 is arranged between the seals 10.

[0034] The profile 1 has at least one support structure 13, which is arranged between the at least one interface 3 and the at least one profile body 6, wherein the at least one support structure 13 comprises at least one insulation 14 and is made of at least one plastic.

[0035] The at least one cover element 2 has at least one, preferably two, outer edges 16, 17, at least one, preferably substantially cuboid, recess 18 into which the at least one profile 1 is inserted, preferably wherein the at least one profile 1 is covered by the at least one cover element 2 on at least two side surfaces 19, 20. In this way, the profile 1 is integrated into an imaginary substantially cuboid volume of the cover element 2, resulting in a compact design and an aesthetic appearance.

[0036] In the specific embodiment shown, the at least one cover element 2 has two essentially horizontal outer edges 16, 17 at the top and bottom in the mounting position, along which at least one profile 1 is arranged.

[0037] The arrangement 15 has at least one frame profile body 29 for attachment to the fixed structure 5, in particular to a window frame of a fixed structure 5, wherein the at least one frame profile body 29 has at least one frame guide rail 30 for guiding at least one carriage 8, wherein the at least one frame guide rail 30, which is substantially C-shaped in cross-section, is arranged substantially parallel to the at least one guide rail 7 of the at least one profile 1.

[0038] The at least one stock profile body 29 has at least one central seal 31 for contact with the at least one profile body 6 of the at least one profile 1, is made of aluminium and at least one plastic and has at least one stock support body 32, preferably made of at least one plastic.

[0039] The at least one stock profile body 29 comprises at least one outer partial profile 33 facing the at least one cover element 2 and at least one inner partial profile 34, preferably wherein the two partial profiles 33, 34 are connected or connectable to each other via at least one connector 35, preferably made of at least one plastic.

[0040] At least one stock profile body 29 has at least one insulation 36.

[0041] The arrangement 15 has at least one reveal 37 which covers the at least one stock profile body 29, wherein the at least one reveal 37 is made of aluminum and has at least one inner seal 39 for abutting the at least one profile body 6 of the at least one profile 1. Insulation 45 can be arranged in the reveal 37. Alternatively or additionally, the reveal 37 can comprise at least one end strip 47, preferably made of aluminum, preferably wherein the end strip 47 faces an inner side of the fixed structure 5.

[0042] Overall, for example, three sealing levels can be provided, formed by an outer seal 9, a middle seal 31, and an inner seal 39. In this embodiment and the embodiment described below, all seals act in the same direction transversely to the at least one cover element.

[0043] On the fixed structure 5, a facade cladding 41, preferably made of aluminum, and / or facade insulation 42 can be arranged on one exterior side. Alternatively or additionally, an interior cladding 43, preferably made of aluminum, and / or insulation 44 can be arranged on one interior side.

[0044] Fig. 5 Figure 1 shows a second embodiment of an arrangement 15. The profile 1 and the assembly on the stationary structure 5, comprising the stock profile body 29, are designed similarly to the first embodiment, so that only the essential differences are mentioned below.

[0045] The at least one profile body 6 is formed from at least one plastic material. The support structure 13 is formed integrally with the profile body 6. Air-filled hollow chambers are formed in the support structure 13, which act as insulation 14.

[0046] The stock profile body 29 is made of at least one plastic and is integrally connected to the stock support body 32.

[0047] The guide rail 7 and the stock guide rail 30 are, for example, made of steel and, in addition to guiding at least one carriage 8 each, serve to... (cf. the Fig. 9 ff.) the elevation of the profile body 6 or the stock profile body 29.

[0048] The reveal 38 can be formed, for example, from a board, preferably made of wood or a wood-like material.

[0049] The Fig. 6 bis 8 show a further embodiment of an arrangement 15 with a stationary structure 5 and a cover element 2. For example, the elements shown in the Fig. 4 or those in the Fig. 5 The profiles shown (1) and / or stock profile body (29) must be installed.

[0050] The arrangement 15 has at least one fixed structure 5 with at least one opening 40, wherein the at least one cover element 2 is located between a closed position ( Fig. 6 ), in which the cover element 2 substantially covers the at least one opening 40 and an open position ( Fig. 7 ), in which the at least one cover element 2 is substantially orthogonally spaced from the at least one opening 40, and preferably in a sliding position ( Fig. 8 ), in which the at least one cover element 2 is arranged laterally offset from the at least one opening 40, is movably mounted, preferably wherein the at least one cover element 2 is recessed essentially flush with the surface in the fixed structure 5 in the closed position.

[0051] The Fig. 9 bis 11 show an embodiment of an arrangement consisting of two guide rails 7 and two stock guide rails 30, which are connected to each other via four guide devices 21, wherein the arrangement is Fig. 9 in the closed position, in Fig. 10 in the disclosure and in Fig. 11 shown in the shift position. Fig. 12 bis 14 show an embodiment of the guide device 21 in the closed position ( Fig. 12 ), the disclosure ( Fig. 14 ) and an intermediate position ( Fig. 13 ).

[0052] The in the Fig. 9 bis 11 The arrangement shown can be used in the Fig. 2 bis 4 or the Fig. 5 The embodiment shown can be used to mount the profile 1 movably on the stationary structure 5. A first pair consisting of a guide rail 7 and a stock guide rail 30 can be arranged at the upper outer edge 16 of the cover element 2, and a second pair consisting of a guide rail 7 and a stock guide rail 30 can be arranged at the lower outer edge 17 of the cover element 2.

[0053] The four guide devices 21 can be essentially identical, with one guide device 21 being motion-coupled to the guide rail 7 and one guide device 21 being motion-coupled to the stick guide rail 30, resulting in a mirror-symmetrical arrangement of the guide devices 21. In the specific case shown, the right-hand guide devices 21 move with the cover element 2 during a lateral displacement movement, while the left-hand guide devices 21 are fixed to the stationary structure 5.

[0054] The guide devices 21 arranged on the stationary structure 5 each comprise at least one carriage 8, preferably with at least one rolling element 4, for slidable mounting in the at least one guide rail 7 of the profile 1, preferably in a longitudinal direction 22 of the at least one guide rail 7, and at least one support body 23 for fastening the guide devices 21 to the stationary structure 5.

[0055] The guide devices 21, which are coupled to the cover element 2 in terms of movement, each comprise at least one carriage 8, preferably with at least one rolling element 4, for slidable mounting in the at least one guide rail 30 of the profile body 30, preferably in a longitudinal direction 22 of the at least one guide rail 30, and at least one support body 23 for fastening the guide devices 21 to the cover element 2 or to the profile 1.

[0056] Movements of the guide devices 21, in particular during a movement of the cover element 2 from the closed position to the open position, can be synchronized with each other via at least one synchronization device.

[0057] For this purpose, for example a drive shaft 48 can be provided, which can be coupled to at least one, preferably electric, drive device.

[0058] As can be seen particularly from the Fig. 12 bis 14As can be seen, the at least one carriage 8 and the at least one support body 23 can be connected to each other via at least one articulated lever mechanism 24, preferably wherein the at least one articulated lever mechanism 24 has at least two support levers 26 articulated to each other via a first articulated axis 25, and at least two drive levers 28 articulated to each other via a second articulated axis 27, particularly preferably wherein the first articulated axis 25 and the second articulated axis 27 are essentially orthogonal to each other.

Claims

1. An arrangement (15) comprising at least one profile (1) for at least one cover element (2), preferably for a window, for covering at least one opening (40) in a fixed structure (5), and at least one, preferably substantially quadrangular, cover element (2), the profile (1) comprising at least one interface (3) for fastening the at least one cover element (2) and at least one profile body (6) facing towards the fixed structure (5) in a mounted condition, wherein the at least one profile body (6) includes at least one guide rail (7), which is substantially C-shaped in a cross section, for guiding at least one running carriage (8), wherein the at least one cover element (2) is fastened to the at least one profile (1) via the at least one interface (3), wherein the arrangement (15) includes at least one, preferably more than one, guide device (21), wherein the at least one guide device (21) includes at least one running carriage (8), preferably having at least one roller body (4), for displaceably supporting in the at least one guide rail (7) of the profile (1), preferably in a longitudinal direction (22) of the at least one guide rail (7), and at least one support body (23) for fastening the at least one guide device (21) to the fixed structure (5), wherein the at least one running carriage (8) and the at least one support body (23) are connected to one another via at least one hinge lever mechanism (24), characterized in that the at least one hinge lever mechanism (24) includes at least two support levers (26) hingedly to one another via a first hinge axis (25), and at least two drive levers (28) hingedly to one another via a second hinge axis (27).

2. The arrangement (15) according to claim 1, wherein the at least one guide rail (7) is formed integrally in the at least one profile body (6), and / or is integrated in the form of at least one insert portion in the at least one profile body (6) .

3. The arrangement (15) according to claim 1 or 2, wherein the at least one profile body (6) is made of aluminum, preferably of an aluminum extruded profile, and / or of at least one plastic, and / or wherein the profile body (6) is designed as a hollow profile body.

4. The arrangement (15) according to one of the claims 1 to 3, wherein the profile (1) includes at least one outer seal (9) configured to bear against the fixed structure (5), preferably against a front-side thereof.

5. The arrangement (15) according to one of the claims 1 to 4, wherein the at least one interface (3) - includes has at least one, preferably two, seal(s) (10), preferably made of silicone, and / or - includes at least one support profile (11), preferably made of aluminum, for supporting the at least one cover element (2), and / or - includes at least one, preferably materially-bonded, holding device (12), preferably in the form of a double-sided adhesive tape.

6. The arrangement (15) according to one of the claims 1 to 5, wherein the profile (1) includes at least one support structure (13) arranged between the at least one interface (3) and the at least one profile body (6), preferably wherein the at least one support structure (13) comprises at least one insulation (14), and / or is formed from at least one plastic.

7. The arrangement (15) according to one of the claims 1 to 6, wherein the at least one cover element (2) is a window, in particular comprising triple insulating glass.

8. The arrangement (15) according to one of the claims 1 to 7, wherein the at least one cover element (2) includes at least one, preferably substantially cuboid, recess (18) on at least one, preferably on two, outer edges (16, 17), into which the at least one profile (1) is inserted, preferably wherein the at least one profile (1) is covered by the at least one cover element (2) on at least two side surfaces (19, 20).

9. The arrangement (15) according to one of the claims 1 to 8, wherein the at least one cover element (2) has two outer edges (16, 17) which are substantially horizontal in the mounted position and along which at least one profile (1) according to one of claims 1 to 6 is arranged.

10. The arrangement (15) according to one of the claims 1 to 9, wherein the first hinge axis (25) and the second hinge axis (27) extend substantially orthogonally to one another.

11. The arrangement (15) according to one of the claims 1 to 10, wherein the arrangement (15) includes at least one frame profile body (29) for fastening to the fixed structure (5), preferably wherein the at least one frame profile body (29) includes at least one frame guide rail (30) for guiding at least one running carriage (8), preferably wherein the at least one frame guide rail (30), which is substantially C-shaped in cross section, is arranged substantially parallel to the at least one guide rail (7) of the at least one profile (1).

12. The arrangement (15) according to claim 11, wherein the at least one frame profile body (29) - includes has at least one central seal (31) configured to bear against the at least one profile body (6) of the at least one profile (1), and / or - is made of aluminum and / or at least one plastic, and / or - includes at least one frame support body (32), preferably made of at least one plastic, and / or - includes at least one outer partial profile (33) facing towards the at least one cover element (2), and at least one inner partial profile (34), preferably wherein the two partial profiles (33, 34) are connected or are configured to be connected to one another via at least one connector (35), preferably made of at least one plastic, and / or - includes at least one insulation (36).

13. The arrangement (15) according to claims 11 to 12, wherein the arrangement (15) includes at least one reveal (37, 38) which covers the at least one frame profile body (29), preferably wherein the at least one reveal (37, 38) is formed from aluminum and / or at least one plastic, and / or includes at least one inner seal (39) configured to bear against the at least one profile body (6) of the at least one profile (1).

14. The arrangement (15) according to one of the claims 1 to 13, wherein the arrangement (15) includes at least one fixed structure (5) having at least one opening (40), wherein the at least one cover element (2) is mounted so as to be movable between a closed position, in which the cover element (2) substantially covers the at least one opening (40), and an open position, in which the at least one cover element (2) is spaced apart substantially orthogonally from the at least one opening (40), and preferably a displacement position, in which the at least one cover element (2) is arranged laterally offset with respect to the at least one opening (40), preferably wherein the at least one cover element (2), in the closed position, is recessed substantially flush with the surface in the fixed structure (5).

Citation Information

Patent Citations

  • Sliding door for closing building apertures has at least one door panel with guide arrangement and guide rail for fixture in building aperture

    CH695276A5

  • Dustproof garage door guide rail

    CN107916860A

  • Armoured sliding door

    EP0718458A1

  • Frameless door or window wing arrangement with insulated glazing, and process for the manufacture thereof

    EP0910720B1