Ground sill

EP4735717A1Pending Publication Date: 2026-05-06MACO TECHNOLOGIE GMBH
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Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
MACO TECHNOLOGIE GMBH
Filing Date
2024-09-05
Publication Date
2026-05-06

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Abstract

A ground sill for supporting a frame and a fixed leaf or casement of a door or window on a building structure comprises an elongate sill body which is intended to be directly or indirectly secured to the building structure and has a surface, and at least one connecting element to be inserted between the surface of the sill body and an underside of the frame or of the fixed leaf or casement, wherein the connecting element has an underside designed to be placed on the surface of the sill body, wherein, in the underside of the connecting element, a groove is formed which extends along a peripheral region of the underside, wherein a sealing element made of an elastic material has been injected into the groove, and wherein the sealing element adheres in the groove and projects out of the groove at least in an uncompressed state.
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Description

[0001] speed bump

[0002] The invention relates to a threshold for supporting a frame and a fixed panel sash of a door or a window on a building structure, with an elongated threshold body which is provided for direct or indirect fastening to the building structure and has a surface, and with at least one connecting element to be inserted between the surface of the threshold body and an underside of the frame or the fixed panel sash, wherein the connecting element has an underside designed to be placed on the surface of the threshold body.

[0003] The threshold of a door or window is typically embedded in the floor slab of a building in such a way that the surface of the sill or an intermediate profile attached to it is as flush as possible with the surface of the floor slab. The fixed panel sash can rest directly on the sill or on the aforementioned intermediate profile, which transfers the weight of the fixed panel sash to the sill. A guide rail can also be arranged on the sill, along which a movable sash can be slid in front of the fixed panel sash to create a passage.

[0004] Connecting elements such as frame corner connectors, center sealing blocks, or similar attachments are designed for thresholds of this type to provide a connection between the components of the frame or fixed-panel sash and the threshold body, and in particular to prevent moisture penetration into the building structure. For this purpose, a sealing foil or sealing plate is typically inserted between the connecting element and the threshold body during installation. Alternatively or additionally, the joints can be sealed after installation by applying sealant. Both sealing options are time-consuming and burdensome for the person entrusted with the installation.

[0005] It is an object of the invention to facilitate the sealing of speed bumps without compromising quality.

[0006] The problem is solved by a threshold having the features of claim 1.

[0007] According to the invention, a groove is formed in the underside of the connecting element, which groove extends along an edge region of the underside, wherein a sealing element made of an elastic material is injected into the groove, wherein the sealing element adheres in the groove and protrudes from the groove at least in an uncompressed state.

[0008] The assembly personnel do not need to carry a sealing element and position it correctly because the connecting element is already equipped with one at the factory. Since the sealing element protrudes from the groove and thus extends beyond the contact surface, it is compressed when the connecting element is pressed against the surface of the sleeper body. This, in conjunction with the elasticity of the sealing material, results in a particularly reliable sealing effect. It has been shown that a suitable injected seal eliminates the need for separate sealing films or sealing plates.

[0009] Preferably, the sealing element protrudes from the groove over the entire length of the groove, in particular by a uniform compression allowance to ensure a consistent sealing effect. The sealing element can be made of a foamed sealing material. A foamed seal has been shown to be particularly efficient and cost-effective. Foamed sealing material can be applied directly to the component in question in a freely dosable manner, without the need for tools, seamlessly, and with precise contours. During or after application, foam formation can occur chemically, i.e., it can react to form an elastic foam seal. The foamed sealing material can be a two-component material.

[0010] According to a special embodiment of the invention, the sealing element is formed from a polymer material, preferably from a silicone material or from a polyurethane material.

[0011] The sealing element may have a round cross-section, in particular a circular or elliptical cross-section. Such a sealing element is easily manufactured by injection molding. It is preferred that the cross-section of the sealing element be uniform along the length of the groove.

[0012] The groove can be completely circumferential. This means the groove can extend along the entire outer edge of the underside of the connecting element. This reliably prevents moisture from penetrating between the connecting element and the sleeper body.

[0013] The groove's course isn't necessarily limited to the underside of the fastener. For example, the groove could run around a corner and thus extend to a side surface of the fastener.

[0014] The groove can be provided with at least one closed loop. For example, exactly one closed loop can be provided, running close to the edge of the underside. According to one embodiment of the invention, the groove has two closed loops arranged on either side of a drainage channel formed in the underside. The drainage channel can serve to drain water to the front of the threshold. This is particularly important for central sealing blocks. The loops arranged on either side of the drainage channel securely support and seal such a central sealing block against the threshold body.

[0015] A stop step can protrude from the surface of the sleeper body, extending along a longitudinal axis of the sleeper body, with a lateral contact surface of the connecting element being designed to engage the stop step of the sleeper body. The groove can extend into the lateral contact surface.

[0016] The underside of the connecting element can be flat. This allows for extensive contact with the corresponding flat surface of the sleeper body.

[0017] The invention also relates to a door system or window system, in particular a sliding door system or sliding window system, for example a lift-and-slide door system or lift-and-slide window system, with a frame, a fixed panel sash coupled to the frame, a sash movable relative to the fixed panel sash and a floor sill for supporting the frame and the fixed panel sash on a building structure.

[0018] According to the invention, the threshold is designed as described above.

[0019] Due to the innovative design of the threshold, no separate seals or sealant are required during installation. Keeping sealing foils, sealing plates, or dosing devices on hand is unnecessary.

[0020] The connecting element can be inserted between the surface of the sill body and a vertical beam of the frame. In particular, the connecting element can be a frame corner connector, which is arranged in the area of ​​a rear edge of the fixed-panel wing and transfers the weight of the vertical beam to the sill body.

[0021] Alternatively, the connecting element can be inserted between the surface of the threshold body and a free leading edge section of the fixed-field wing. Such a connecting element is commonly referred to as a "center seal block." It ensures a clean seal between the wing's leading edge and the ground and diverts water running down the leading edge.

[0022] A door system or window system according to the invention can also have a threshold with a frame corner connector and a central sealing block, wherein both the frame corner connector and the central sealing block have a groove and a sealing element injected into it as described above.

[0023] The invention also relates to a method for producing a threshold intended to support a frame and a fixed leaf of a door or window on a building structure, in particular a threshold designed as described above, comprising the steps:

[0024] (i) providing an elongated sleeper body intended for direct or indirect attachment to the structure and having a surface,

[0025] (ii) providing at least one connecting element which is to be inserted between the surface of the threshold body and an underside of the frame or the fixed field wing and has an underside designed to be placed on the surface of the threshold body, wherein a groove is formed in the underside of the connecting element which extends along an edge region of the underside,

[0026] (iii) injecting an elastic sealing material into the groove,

[0027] (iv) Applying the connecting element with the sealing material first to the surface of the sleeper body, and

[0028] (v) Fasten the connecting element to the sleeper body while compressing the sealing material.

[0029] The sealing element is created and correctly positioned before assembly, thus reducing the workload for assembly personnel.

[0030] Preferably, the sealing material is injected in a liquid or pasty state, for example by means of an automatic dosing device.

[0031] The sealing material may comprise a polymer material, in particular a silicone material or a polyurethane material.

[0032] During or after injection, the sealing material may "cure," a chemical reaction that transforms the liquid or pasty sealant into a fundamentally solid and dimensionally stable sealing element. However, such "curing" should not be understood to mean that the resulting sealing element is hard in the sense of "inelastic."

[0033] Further developments of the invention can also be found in the dependent claims, the following description and the attached drawings.

[0034] The invention is described below by way of example with reference to the drawings. Figure 1 shows a sliding door system according to the invention.

[0035] Fig. 2 is a perspective view of a fixed panel wing area of ​​the sliding door system according to Fig. 1 .

[0036] Fig. 3 shows a threshold of the sliding door system according to Fig. 1 in a perspective individual view.

[0037] Fig. 4 shows a frame corner connector of the threshold according to Fig. 3 from below.

[0038] Fig. 5 shows a central sealing block of the threshold according to Fig. 3 from below.

[0039] Fig. 1 shows a sliding door system 10 with a stationary frame 11, a sliding leaf 12 and a fixed field leaf 14, wherein the sliding leaf 12 can be pushed in a conventional manner from the illustrated closed position in front of the fixed field leaf 14 in order to release a passage opening of the sliding door system 10.

[0040] Like the fixed-panel sash 14, the sliding sash 12 comprises a glazing 16 and a sash frame 18 formed from a hollow chamber profile surrounding the glazing 16. The fixed-panel sash 14 has a front edge 20 facing the passage opening and an opposite rear edge 22.

[0041] The lower end of the sliding door system 10 is formed, as can be seen in Figs. 2 and 3, by a threshold 24, via which the frame 11, the sliding sash 12 and the fixed panel sash 14 are supported on a structural member not shown. The threshold 24 comprises a sill body 26 which has a longitudinal axis 28 and is fastened directly or indirectly to the structural member, for example by means of screw angles. The sill body 26 has a surface 30 which, when properly installed, faces upwards and from which a stop step 32 protrudes, extending along the longitudinal axis 28 over the entire sill body 26. The stop step 32 forms a raised region 34 of the sill body 26, into which a guide rail 36 for guiding the sliding sash 12 is embedded.

[0042] The rear edge 22 of the fixed-panel wing 14 adjoins a vertical beam 37 of the frame 11. The vertical beam 37 is supported on the sill body 26 via a first connecting element 40 in the form of a frame corner connector. As can be seen in Fig. 3, the first connecting element 40 is attached to the surface 30 of the sill body 26, for example by screwing, such that it rests against the stop step 32.

[0043] The fixed-field wing 14 does not rest directly on the sleeper body 26, but rather via an intermediate profile 38 that is attached to the surface 30 of the sleeper body 26. As shown in Fig. 2, the intermediate profile 38 does not extend to the front edge 20 of the fixed-field wing 14. Rather, in the area of ​​the front edge 20, a second connecting element 42, namely a central sealing block, is inserted between the surface 30 of the sleeper body 26 and the fixed-field wing 14.

[0044] Fig. 4 shows the first connecting element 40 in a detailed view from below. In the illustrated embodiment, the first connecting element 40 is designed as an injection-molded block. This has an underside 50 designed to be placed on the surface 30 of the sleeper body 26 and a lateral contact surface 52 designed to bear against the stop step 32 of the sleeper body 26. In the illustrated embodiment, the underside 50 of the first connecting element 40 is flat. Furthermore, a channel in the form of a groove 54 is formed in the underside 50 of the first connecting element 40 and is open towards the underside 50. The channel extends along the edge 56 of the underside 50. This means that the groove 54 forms a recess in the underside 50 of the first connecting element 40. The recess can have a semicircular cross-section.

[0045] As shown, the groove 54 runs completely around the underside 50 and has an extension 58, which is also open toward the lateral contact surface 52. A sealing element 62 made of an elastic material, formed from elongated sections 60, is injected into the groove 54. The elastic material can be a foamed polymer material, for example, based on silicone or polyurethane. The injected material adheres to the groove 54 and, in an uncompressed initial state, protrudes from the groove 54. In the illustrated embodiment, the sealing element 62 has a circular cross-section.

[0046] Including the extension 58, the groove 54 is thus designed as a closed loop. However, the sealing element 62 has an interruption in the area of ​​the extension 58 to provide space for a separate sealing element (not shown) to be inserted into the extension 58.

[0047] During installation of the threshold 24, the first connecting element 40 is placed on the surface 30 of the threshold body 26 and preferably screwed to it. The sealing element 62 is compressed, thereby providing a reliable sealing effect. This counteracts unwanted moisture creep through the joint between the threshold body 26 and the first connecting element 40.

[0048] The second connecting element 42 shown in Fig. 5 is designed similarly to the first connecting element 40 with regard to the seal against the surface 30 of the sleeper body 26. In particular, it also has an underside 50 and a lateral contact surface 52. Starting from the lateral contact surface 52, a drainage channel 66 open towards the underside 50 extends through the entire second connecting element 42. On both sides of the drainage channel 66, recesses 68 are formed in the underside 50, which together form a groove 54' as in the first connecting element according to Fig. 4. A sealing element 62' made of an elastic material is injected into the groove 54', which, in accordance with the two-part design of the groove 54', is not made in one piece as in the first connecting element 40, but is composed of two separate parts 71, 72. As shown, the parts 71, 72 form closed loops.

[0049] To produce the threshold 24 shown in Figs. 2 and 3, the threshold body 26, the first connecting element 40, the second connecting element 42, the intermediate profile 38, and the guide rail 36 are first prepared. Subsequently, a sealing material is injected into the groove 54 of the first connecting element 40 and into the groove 54' of the second connecting element 42 using an automatic dosing device. If necessary, a predetermined reaction time is then allowed until the injected sealing material has fully reacted, in particular by foaming, and forms the elastic sealing elements 62, 62'. In principle, the reaction can also be so rapid that it practically takes place during the injection process.

[0050] The first connecting element 40 and the second connecting element 42, with the sealing elements 62, 62' first, are then placed against the surface 30 of the threshold body 26 and fastened thereto. The intermediate profile 38 is also fastened to the threshold body 26. The guide rail 36 is also fastened to the threshold body 26. The fastening steps can be carried out during assembly, whereby neither the positioning of sealing films nor the injection of sealant into joints is required. The foamed sealing elements 62, 62' are advantageous not only for thresholds for sliding doors, but also for other types of thresholds in the field of building technology, for example, thresholds for revolving doors or gates.

[0051] List of reference symbols:

[0052] 10 Sliding door system

[0053] 11 frames

[0054] 12 sliding panels

[0055] 14 fixed field wings

[0056] 16 Glazing

[0057] 18 sash frames

[0058] 20 leading edge

[0059] 22 trailing edge

[0060] 24 speed threshold

[0061] 26 sleeper bodies

[0062] 28 Longitudinal axis

[0063] 30 Surface

[0064] 32 stop level

[0065] 34 raised area

[0066] 36 guide rail

[0067] 37 vertical beam

[0068] 38 intermediate profile

[0069] 40 first connecting element

[0070] 42 second connecting element

[0071] 50 subpage

[0072] 52 lateral contact surface

[0073] 54, 54' groove

[0074] 56 rand

[0075] 58 Extension

[0076] 60 elongated section

[0077] 62, 62' sealing element

[0078] 66 drainage channel

[0079] 68 Deepening

[0080] 71 Part of the sealing element

[0081] 72 Part of the sealing element

Claims

Claims 1 . Floor threshold (24) for supporting a frame (11) and a fixed panel sash (14) of a door or window on a building structure, with an elongated threshold body (26) which is provided for direct or indirect fastening to the building structure and has a surface (30), and with at least one connecting element (40, 42) to be inserted between the surface (30) of the threshold body (26) and an underside of the frame (11) or of the fixed panel sash (14), wherein the connecting element (40, 42) has an underside (50) designed to be placed on the surface (30) of the threshold body (26), wherein a groove (54, 54') is formed in the underside (50) of the connecting element (40, 42), which groove extends along an edge region (56) of the underside (50), wherein a sealing element (62, 62') made of an elastic material is inserted into the groove (54, 54') is injected, wherein the sealing element (62, 62') is in the groove (54,54') and protrudes from the groove (54, 54') at least in an uncompressed state.

2. A threshold according to claim 1, wherein the sealing element (62, 62') projects out of the groove (54, 54') over the entire length of the latter.

3. A threshold according to claim 1 or 2, wherein the sealing element (62, 62') is formed from a foamed sealing material.

4. A threshold according to any one of the preceding claims, wherein the sealing element (62, 62') is formed from a polymer material.

5. A threshold according to any one of the preceding claims, wherein the sealing element (62, 62') has a round cross-section.

6. A threshold according to any one of the preceding claims, wherein the groove (54, 54') extends completely around the underside (50).

7. A threshold according to any one of the preceding claims, wherein the groove (54, 54') has at least one closed loop.

8. A threshold according to claim 7, wherein the groove (54') has two closed loops arranged on either side of a drainage channel (66) formed in the underside (50).

9. A threshold according to any one of the preceding claims, wherein the underside (50) of the connecting element (40, 42) is flat.

10. Door system or window system, in particular sliding door system (10) or sliding window system, with a frame (11), a fixed field sash (14) coupled to the frame (11), a sash (12) movable relative to the fixed field sash (14) and a floor sill (24) for supporting the frame (11) and the fixed field sash (14) on a building structure, wherein the floor sill (24) is designed according to one of the preceding claims.

11. System according to claim 10, wherein the connecting element (40) is inserted between the surface (30) of the sleeper body (26) and a vertical beam (37) of the frame (11).

12. System according to claim 10, wherein the connecting element (42) is inserted between the surface (30) of the threshold body (26) and a free leading edge portion of the fixed field wing (14).

13. A method for producing a threshold (24) intended to support a frame (11) and a fixed leaf (14) of a door or window on a building structure, in particular a threshold according to one of claims 1 to 9, comprising the steps: (i) providing an elongated sleeper body (26) intended for direct or indirect attachment to the building structure and having a surface (30), (ii) providing at least one connecting element (40, 42) which is to be inserted between the surface (30) of the threshold body (26) and an underside of the frame (11) or of the fixed field wing (14) and has an underside (50) designed to be placed on the surface (30) of the threshold body (26), wherein a groove (54, 54') is formed in the underside (50) of the connecting element (40, 42) which extends along an edge region (56) of the underside (50), (iii) injecting an elastic sealing material into the groove (54, 54'), (iv) placing the connecting element (40, 42) with the sealing material first on the surface (30) of the sleeper body (26), and (v) Fastening the connecting element (40, 42) to the sleeper body (26) while compressing the sealing material.

14. The method according to claim 13, wherein the sealing material is injected in a liquid or pasty state.

15. The method of claim 13 or 14, wherein the sealing material comprises a polymer material.