LIP SEALING PROFILE AND BUILDING JOINERY CONTAINING SUCH A LIP SEALING PROFILE

Abstract

A lip seal profile (16) for a window or door frame (10), the lip seal profile (16) being formed in one piece and having an elongated shape along an axis (X2), comprising: - a longitudinal fixing flange (18), and - at least one longitudinal sealing lip (20) extending along the axis (X2), characterized in that the body (22) of the flange (18) has a general H-shaped cross-section to define two longitudinal grooves (26, 28) located on two opposite sides of the body (22), and in that the flange (18) further comprises a longitudinal shimming member (38) which is integral with the body (22) and which projects inside the first groove (26), said member (38) being elastically deformable inside the first groove (26). Figure for the abbreviation: Figure 2

Description

Title of the invention: LIP SEALING PROFILE AND BUILDING JOINERY COMPRISING SUCH A LIP SEAL PROFILE Technical field of the invention

[0001] The present invention relates to a lip seal or sealing profile and to building joinery comprising such a lip seal or sealing profile. The invention further relates to a method for mounting the lip seal or sealing profile and a method for replacing a brush seal with a lip seal. Technical background

[0002] Typically, a building joinery comprises a frame and at least one sash. The sash is mounted pivoting or sliding relative to the frame.

[0003] In the case of the present invention, we are particularly interested in sliding frame joinery. This type of frame is generally equipped with brush-type seals or profiles which ensure airtightness and watertightness between the sash and the frame.

[0004] Another function of these seals / profiles is to remain in contact with the frame when the opening sash slides and therefore to slide in contact with the frame at the same time as the opening sash.

[0005] A second application for the present invention is the guidance of the slats of roller shutters, ensuring the sliding of the slats in the aluminium tracks for example.

[0006] A brush seal typically comprises two parts: a mounting portion and a brush portion. The brush seal is mounted in a longitudinal groove of the sash, and its mounting portion is shaped to fit into this groove. In practice, this mounting is carried out before the sash is assembled by engaging one longitudinal end of the seal's mounting portion into one longitudinal end of the groove of a sash profile, and then sliding or sliding the mounting portion into the groove until the entire mounting portion is housed within the groove or until the mounting portion fills the entire length of the groove. A brush seal can be mounted in this way on several sash profiles, and then the profiles are assembled to form the sash. The sash can then be mounted in the frame of the window or door.

[0007] A brush seal has several disadvantages. First, it is likely to wear out after several years of use of the joinery. It is also susceptible to loss of sealing efficiency, ease of operation, and light obstruction. With current technology, there is no solution to replace this type of seal. Indeed, the solution of removing a brush seal and replacing it with a new one is not feasible because the new seal would not be suitable for installation on the opening after assembly.

[0008] Another drawback is the unsightly appearance of this type of seal after several years of use. The seal's brush can become dirty and deformed, which is unattractive for joinery.

[0009] The present invention proposes a solution to at least some of these problems, which is simple, effective and economical. Summary of the invention

[0010] The present invention is a lip seal profile for joinery, the lip seal profile being formed from a single piece and having an elongated shape along an axis, the lip seal profile comprising:

[0011] - a longitudinal fixing lug that extends along the axis and comprises a longitudinal body made from a first material, and

[0012] - at least one longitudinal sealing lip which extends along the axis and which includes a core made of a second material that is more flexible than the first material, with the longitudinal lip being connected to the heel,

[0013] characterized in that the heel body has in cross-section a general H shape to define two longitudinal grooves located on two opposite sides of the body, a first of these grooves being delimited by first and second longitudinal branches of the body, respectively upper and lower, and a second of these grooves being delimited by third and fourth longitudinal branches of the body, respectively upper and lower, the longitudinal lip being connected to an upper end of the heel body,

[0014] and in that the heel further comprises a longitudinal shimming member which is integral with the body and which protrudes inside the first groove, said member being elastically deformable inside the first groove.

[0015] The invention thus proposes the use of a lip seal or profile rather than a brush seal commonly used in current technology. The seal is thus provided by a lip rather than a brush. Advantageously, this lip is flexible and elastically deformable and able to cooperate by sliding with a window or door frame.

[0016] In this application, the term "fixed frame" generally refers to a fixed frame. The term "opening" refers to a movable element relative to the fixed frame. The opening may to be a window, a door, a French window, a shutter, a gate, a roller shutter box, etc.

[0017] The lip seal profile according to the invention has a special base comprising a body and a shim. The body is H-shaped and includes two lateral longitudinal grooves. One of these grooves accommodates the shim, which is elastically deformable and acts as a spring to hold the lip seal profile in position after assembly, which will be described in more detail below.

[0018] The lip seal profile is more aesthetically pleasing than a brush seal, even after several years of use, particularly because it is less likely to retain dust and dirt. Furthermore, due to the specific shape of its base, it is easier to install in a groove of a joinery element, even when the joinery is already assembled or even already installed in a building.

[0019] The sealing profile is advantageously mounted in a groove by elastic snap-fit, also called clipping or clipping.

[0020] The H-shaped base allows the lip seal profile to be mounted by tilting. A first lateral edge of the groove is engaged in the first groove and bears against the component, which is elastically deformed. Then, a second lateral edge of the groove can cooperate by elastic snap-fit ​​with the fourth arm and be engaged in the second groove. The component, by elastic return, forces the remainder of the lip seal profile towards the second lateral edge to laterally wedge the lip seal profile.

[0021] The lip seal profile according to the invention may comprise one or more of the following features, which may be considered independently of each other or in combination with each other:

[0022] - the first groove has a depth greater than the depth of the second groove, each depth being measured in a direction perpendicular to a median plane of the body passing between the first and second grooves.

[0023] — the median plane passes at equal distances from the grooves;

[0024] - the fourth branch has a shorter transverse dimension than the third branch, and / or the second branch has a shorter transverse dimension than the first branch, each transverse dimension being measured in a direction perpendicular to a median plane of the body passing between the first and second grooves.

[0025] - each of the first and second grooves comprises a longitudinal bottom extending between two longitudinal flanks which are respectively defined by the two branches delimiting the corresponding groove,

[0026] - the bottoms of the first and second grooves are flat and parallel,

[0027] - the flanks of the first groove are parallel to the flanks of the second groove, and are preferably aligned transversely with the sides of the second groove,

[0028] - the sides of the first groove have an identical height to within + / -10%, each height being measured in a direction perpendicular to a median plane of the body passing between the first and second grooves,

[0029] - the sides of the second groove have different heights, each height being measured in a direction perpendicular to a median plane of the body passing between the first and second grooves,

[0030] - the fourth branch has a free pointed end,

[0031] - the fourth branch comprises an inclined lower face forming a ramp,

[0032] - the free pointed end of the fourth branch is at the intersection of the face lower inclined and of the flank of the fourth branch,

[0033] - the second branch has a free pointed end,

[0034] - the first branch has a free end which is inclined upwards with respect to to the rest of the first branch,

[0035] - the first branch comprises an inclined lower face forming a ramp,

[0036] - the organ has a generally flat shape and comprises two flat lateral faces oriented in opposite directions,

[0037] - the organ is inclined with respect to a median plane of the body passing between the first and second grooves,

[0038] - the organ has a free longitudinal edge oriented outwards from the first groove, and an opposite longitudinal edge for connection to the body,

[0039] - the opposite edge of the organ is connected to the bottom of the first groove,

[0040] - one face of the organ is oriented towards the bottom of the first groove, and the other The faces of the organ are oriented outwards from the first groove,

[0041] — the lip is connected to the apex of a fifth longitudinal branch projecting from the body,

[0042] — the organ is made of said second material,

[0043] — the first and second materials are TPE-based,

[0044] — the first material is chosen from PP and TPO,

[0045] — the first material preferably has a Shore A hardness greater than or equal to 70, and / or an elongation at break greater than or equal to 500%, and preferably greater than or equal to 600%,

[0046] — the second material is chosen from PP and TPV,

[0047] — the second material has a CRD (Compression Residual Deformation) less than or equal to 40%, in order to ensure contact between the latter and the frame or sash of the window or door. This contact allows the window or door to be airtight.

[0048] — the second material is made of cellular material with a density of less than 1;

[0049] — the second material preferably has a Shore A hardness less than or equal to 70, and / or an elongation at break greater than or equal to 200%, and preferably greater than or equal to 300%,

[0050] — the core is covered with a sliding layer,

[0051] — the sliding layer is chosen from PE and PER, to have a low coefficient of friction, i.e. a coefficient of friction less than 0.1 (measured according to ISO 8295 standard),

[0052] — the sliding layer has a Shore A hardness greater than or equal to 80, and of preference greater than or equal to 90,

[0053] — the lip has a generally flat shape and is formed by a succession of ridges longitudinal adjacent and joined to each other,

[0054] — the ridges are delimited by longitudinal grooves formed on two opposite and parallel faces of the lip, formed in the sliding layer and also in the core,

[0055] — the number of ridges is between 2 and 5 and preferably between 3 and 4.

[0056] The present invention also relates to a building joinery, comprising a frame and an opening mounted sliding in the frame, at least one of the elements chosen from the opening and the frame carrying at least one lip sealing profile as described above, the lip sealing profile being mounted in a longitudinal groove of the element by its fixing heel and cooperating by sliding with the other element by its sealing lip.

[0057] Lip sealing profiles can extend over at least two opposite sides of the element, or even over four sides of the element.

[0058] The present invention also relates to a method for mounting a lip seal profile as described above in a longitudinal groove of a window or door frame, comprising the following steps:

[0059] a) engage the second longitudinal branch of the body in the throat, and

[0060] b) tilt the lip seal profile until the fourth arm engages in the groove by elastic snap-fit.

[0061] The method according to the invention comprises one or more of the following steps or features, which may be considered independently of each other or in combination with each other:

[0062] - the tilting is carried out around an axis which is an axis of elongation of the profile lip seal,

[0063] - during step a), a first lateral edge of the throat is engaged in the first groove and rests on the organ which is elastically deformed,

[0064] - during step b), a second lateral rim of the groove cooperates by snapping elastic with the fourth branch and is engaged in the second groove, and

[0065] - after step b), the component exerts elastic recoil on the rest of the profile lip seal towards the second lateral rim to laterally wedge the lip seal profile.

[0066] The present invention further relates to a method for replacing a brush seal with a lip seal profile on a window or door frame, comprising the following steps:

[0067] i) removal of a brush seal, the brush seal being extracted from a longitudinal groove in the sash or frame, and

[0068] ii) mounting of a lip seal profile as described above in said groove. Brief description of the figures

[0069] The invention will be better understood and other details, features and advantages of the invention will become apparent upon reading the following description, given by way of non-limiting example with reference to the accompanying drawings, in which:

[0070] [Fig-1] Fig. 1 is a partial schematic cross-sectional view of a joinery and particular of an opening and a fixed part of this joinery, the opening here having two lip sealing profiles conforming to the invention,

[0071] [Fig.2] Fig.2 is a schematic cross-sectional view of a lip seal profile according to a first embodiment of the invention,

[0072] [Fig.3] Fig.3 is a schematic cross-sectional view of the lip seal profile of Fig.2 mounted in a longitudinal groove of a joinery element,

[0073] [Fig.4] [Fig.4] is a view similar to that of [Fig.3] and shows a second embodiment of the invention,

[0074] [Fig.5] [Fig.5] is a view similar to that of [Fig.3] and shows a third embodiment of the invention,

[0075] [Fig. 6a-6f] Figures 6a to 6f are views similar to that of [Fig. 3] and show a kinematic of mounting by tilting a lip seal profile according to the invention in a groove of a joinery element. Detailed description of the invention

[0076] Fig. 1 shows a building joinery 10.

[0077] In a conventional manner, a joinery 10 comprises a frame 12 and at least one sash 14. The sash 14 is mounted pivoting or sliding vis-à-vis the frame 12.

[0078] In the example shown, the opening 14 is mounted to slide along an axis marked XL

[0079] In current technology, this type of joinery 10 or opening 14 carries one or more brush seals and the present invention proposes, on the contrary, to equip it with lip sealing profile(s) 16.

[0080] A first function of a lip sealing profile 16 according to the invention is to ensure air and water tightness between the opening 14 and the fixed 12.

[0081] Another function of the lip sealing profile 16 is to allow the frame 12 to slide on the lip of the sealing profile 16, or conversely of the sash 4 on the lip when the sealing profile 16 is carried by the frame 12.

[0082] In the example shown, the opening 14 has two lip seal profiles 16 on the same side of the opening. Lip sealing profiles 16 can be located on two opposite sides of an opening 14, or even on all sides of the opening 14. Lip sealing profiles 16 can therefore extend along the vertical lateral edges, and the upper and lower horizontal edges, of the opening 14. The frame 12 could be equipped in the same way.

[0083] The lip seal profile 16 is formed from a single piece and has an elongated shape along an axis X2. Figure 1 illustrates a first embodiment of the lip seal profile 16, its elongation axis X2 being perpendicular to the drawing plane. It is therefore understood that Figure 1 is a cross-sectional view of the lip seal profile 16.

[0084] The sealing profile 16 essentially comprises two parts, namely a heel 18 and at least one lip 20.

[0085] The heel 18 is a longitudinal fixing heel which extends along the axis X2 and which includes a longitudinal body 22 made of a first material.

[0086] The lip 20 is a longitudinal sealing strip extending along the axis X2 and comprising a core 24 made of a second material more flexible than the first material. The lip 20 is connected to the heel 18.

[0087] The particularity of the body 22 of the heel 18 is that in cross-section it has a general H shape.

[0088] The heel 18 or its body 22 comprises two opposite lateral sides, an upper end and a lower end.

[0089] The body 22 includes two longitudinal grooves 26, 28 located on two opposite sides of the body 22. The H-shaped body is reversed or flattened so that the grooves 26, 28 are located on the sides of the heel or the body.

[0090] The first groove 26, on the left in the drawing, is delimited by first and second longitudinal branches 30, 32 of the body 22, respectively upper and lower.

[0091] The second groove 28 is delimited by third and fourth longitudinal branches 34, 36 of the body 22, respectively upper and lower.

[0092] The lip 20 is connected to the upper end of the body 22 of the heel 18.

[0093] The heel 18 further comprises a longitudinal shimming member 38 which is integral of the body 22 and which protrudes inside the first groove 26. This component 38 is elastically deformable inside the first groove 26 as will be described in more detail below.

[0094] The first groove 26 preferably has a depth PI greater than a depth P2 of the second groove 28, as can be seen in [Fig.2]. Each depth PI, P2 is measured in a direction perpendicular to a median plane Z of the body passing between the grooves 26, 28, and preferably at equal distances from the grooves.

[0095] The fourth branch 36 preferably has a smaller transverse dimension H4 than that H3 of the third branch 34.

[0096] The second branch 32 preferably has a smaller transverse dimension H2 than that H1 of the first branch 30.

[0097] Each transverse dimension H1, H2, H3, H4 is measured in a direction perpendicular to the median plane Z.

[0098] Each groove 26, 28 comprises a longitudinal bottom 26a, 28a extending between two longitudinal sides 26b, 26c, 28b, 28c, which are respectively defined by the two branches delimiting the corresponding groove. Thus, groove 26 has sides 26b, 26d defined respectively by branches 30, 32, and groove 28 has sides 28b, 28c defined respectively by branches 34, 36.

[0099] The bottoms 26a, 28a of the grooves 26, 28 are preferably flat and parallel.

[0100] The sides 26b, 26c of the first groove 26 are preferably parallel to each other and to the sides 28b, 28c of the second groove 28.

[0101] Advantageously and as in the example shown, the flanks 26b, 26c of the first groove 26 are aligned transversely with the flanks 28b, 28c of the second groove 28.

[0102] The sides 26b, 26c of the first groove 26 can have a height RI, R2 identical to + / -10%.

[0103] The flanks 28b, 28c of the second groove 28 preferably have different heights R3, R4.

[0104] Each height RI, R2, R3, R4 is measured in a direction perpendicular to the median plane Z.

[0105] In the example shown, the heights R2, R3, and R4 can be identical to the transverse dimensions H2, H3, and H4, respectively. The height RI can be less than the transverse dimension H1, as in the example shown. The height RI can be close to the height R2 or identical to the height R2.

[0106] The fourth branch 36 preferably has a free pointed end.

[0107] The fourth branch 36 preferably comprises an inclined lower face 36a forming a ramp whose function will be specified below.

[0108] The free pointed end of the fourth branch 36 is preferably at the intersection of the inclined lower face 36a and the flank 28c of the fourth branch 36.

[0109] The second branch 32 may have a free pointed end.

[0110] The first branch 30 may have a free end 30a which is inclined upwards relative to the rest of the first branch 30.

[0111] The first branch 30 preferably comprises an inclined lower face 30b forming a ramp whose function will be specified below.

[0112] The organ 38 preferably has a general planar shape and may comprise two planar lateral faces 38a, 38b oriented in opposite directions.

[0113] The organ 38 can be inclined with respect to the median plane Z of the body 22.

[0114] The organ 38 may have a free longitudinal edge 38c oriented outwards from the first groove 26, and an opposite longitudinal edge 38d of connection to the body 22. The edge 38d of the organ 38 is here connected to the bottom 26a of the first groove 36a.

[0115] One face of the organ 38, and in particular face 38a in the example shown, is oriented towards the bottom 38d of the first groove 26, and the other face of the organ 38, in particular face 38b, is oriented towards the outside of the first groove 26.

[0116] As regards the lip 20, it is preferably connected to the top of a fifth longitudinal branch 40 projecting from the body 22. This branch 40 is located on the upper end of the body 22.

[0117] The core 24 of the lip is preferably covered with a sliding layer 42.

[0118] In the example shown, the lip 20 has a general flat shape and is formed by a succession of longitudinal ridges 20a, 20b, 20c adjacent and joined to each other.

[0119] The ridges 20a, 20b, 20c are delimited by longitudinal grooves 44 formed on two opposite and parallel faces of the lip 20 and formed in the sliding layer 42 or even also in the web 24.

[0120] The number of ridges 20a, 20b, 20c is for example between 2 and 5 and preferably between 3 and 4. It is 3 in the example shown.

[0121] The organ 38 and the core 24 of the lip 20 are preferably made of the same material. This material may be TPE-based.

[0122] The material of the body 22 can also be TPE-based.

[0123] Figure 3 shows the lip sealing profile 16 of Figure 2 mounted in a longitudinal groove 50 of an opening 14 or fixed 12 of joinery 10.

[0124] The lip sealing profile 16 is mounted in the groove 50 by its fixing heel 18 and cooperates by sliding by its sealing lip 20, as mentioned above.

[0125] The groove 50 has a generally elongated shape and is laterally delimited by two lateral rims 52, 54. Each rim 52, 54 has an elongated shape and is suitable for engaging in one of the grooves 26, 28 of the lip sealing profile 16. The rim 52 is configured to be engaged in the groove 26, and the rim 54 is configured to be engaged in the groove 28.

[0126] The rims 52, 54 preferably have a thickness Bl, B2 close or identical, which is less than the width B3, B4 of the grooves 26, 28. These measurements are taken in directions parallel to the aforementioned median plane Z.

[0127] The width B3, B4 of the grooves corresponds to the distance between the flanks of the grooves and is identical in the example shown.

[0128] The edges 52, 54 are at a distance Y1 from each other which is greater than the transverse thickness Y2 of the body 22 of the heel. These measurements are taken in directions perpendicular to the median plane Z. The thickness Y2 is measured between the bottoms of the grooves 26, 28.

[0129] The distance Y3 between the bottom of the groove 28 and the free end 38c of the member 38 is greater than the distance Y1 so as to ensure that the member 38 is well compressed in the groove 26 when mounting the lip sealing profile 16 in the groove 50.

[0130] The mounting clearances between the heel 18 and the rims 52, 54, in directions perpendicular to the Z plane and parallel to this Z plane, are advantageously designed to facilitate the mounting of the sealing profile 16 in the groove 50 and the removal of the sealing profile 16 from the groove 50.

[0131] The arms 30, 32 are able to bear on the rim 52, respectively when the sealing profile 16 moves downwards in the groove 50, and upwards in the groove 50. The arms 34, 36 are able to bear on the rim 54, respectively when the sealing profile 16 moves downwards in the groove 50, and upwards in the groove 50.

[0132] Similarly, the bottom of the groove 28 is able to bear against the rim 54 when the sealing profile 16 moves towards the rim 54 in the groove 50. When the sealing profile 16 moves towards the rim 52 in the groove, this results in additional compression of the member 38 which tends to pull the sealing profile back to the opposite side, i.e. towards the rim 54. In this way, the member 50 ensures the positioning of the sealing profile 16 in the groove 50, particularly in the transverse direction.

[0133] Advantageously, as will be described in more detail below with reference to Figures 6 and following, the arm 36 is configured to cooperate by elastic snap-fit ​​with the rim 54 when the sealing profile 16 is tilted into the groove 50. For this purpose, the ramp formed by the inclined face 36a of the arm 36 is able to take hold and slide on the rim 54 until its free end engages in the groove 50 by passing under the rim 54.

[0134] Similarly, advantageously, the arm 30 is configured to cooperate by support and sliding with the rim 52, when the sealing profile 16 is inserted by tilting into the groove 50. For this purpose, the ramp formed by the inclined face 30b of the arm 30 is able to bear and slide on the rim 52 when the arm 32 engages in the groove 50 and passes under the rim 52.

[0135] Figures 4 and 5 illustrate alternative embodiments of the lip sealing profile.

[0136] The lip seal profile 16 of [Fig.4] differs from that described above in that its lip 18 has four ridges 20a, 20b, 20c, 20d instead of three.

[0137] The lip sealing profile 16 of [Fig.5] differs from that described above in that its body 22 includes an internal cavity 60 which extends longitudinally along the sealing profile 16.

[0138] The embodiment variants of Figures 3 to 5 may also differ in their dimensions. The choice among these variants and the choice among their dimensions depends, for example, on the width of the groove 50 (distance Y1 mentioned above) and the distance between the sash and the frame which must be filled and sealed by the sealing profile 16.

[0139] Regarding the materials, the core 24 and the organ 38 are preferably made of a material, for example, based on TPE.

[0140] The soul 24 and the organ 38 are for example made in PP or TPV.

[0141] The material of the core 24 and of the organ 38 preferably has a DRC (Deformation Compression set) less than or equal to 40%.

[0142] The material of the core 24 and of the organ 38 preferably has a Shore A hardness less than or equal to 70, and / or an elongation at break greater than or equal to 200% and preferably greater than or equal to 300%.

[0143] The body 22 of the heel 18 can be made of PP or TPO for example.

[0144] The body material 22 preferably has a Shore A hardness greater than or equal to 70, and / or an elongation at break greater than or equal to 500% and preferably greater than or equal to 600%.

[0145] The sliding layer 42 is for example made of PE or PER.

[0146] The sliding layer preferably has a Shore A hardness greater than or equal to 80, and preferably greater than or equal to 90.

[0147] The present invention also relates to a method of mounting a lip seal profile 16 as described above in a longitudinal groove 50 of an opening 14 or fixed 12 of joinery 10.

[0148] The process includes the following steps, which are illustrated by Figures 6a to 6f.

[0149] The method includes a first step a) consisting of engaging the second branch 32 of the body 22 in the groove 50.

[0150] The method includes a second step b) consisting of tilting the lip seal profile 16 until the fourth arm 36 engages in the groove 50 by elastic snap-fit.

[0151] As can be seen in the drawings, the tilting is preferably carried out around the elongation axis X2 of the lip sealing profile 16.

[0152] During step a), the first lateral rim 52 of the groove 50 is engaged in the first groove 26 and bears against the member 38 which is elastically deformed.

[0153] During step b), the second lateral rim 54 of the groove 50 cooperates by elastic snap-fit ​​with the fourth branch 36 and is engaged in the second groove 28.

[0154] After step b), the member 38 exerts elastic return stress on the rest of the lip sealing profile 16 towards the second lateral rim 54 to laterally wedge the lip sealing profile 16 (see arrow in figure 6f).

[0155] The present invention further relates to a method for replacing a brush seal with a lip seal profile 16 on a window or door frame, comprising the following steps:

[0156] i) removal of the brush seal, the brush seal being extracted from a longitudinal groove 50 of the sash or frame, and

[0157] ii) mounting of a lip seal profile 16 as described above in said groove.

[0158] Advantageously, the 16 mm lip seal profile must allow the movement of a sash within a frame and not generate forces exceeding 10 kg / m (according to standard NF EN 13115). The 16 mm lip seal profile can be installed without removing the sash from the frame. The 16 mm lip seal profile can be mounted on the vertical stiles and top and bottom rails by tilting, without disassembling the sash stiles and rails. The 16 mm lip seal profile can be installed in different groove widths and adapt to different frame / sash clearances. The 16 mm lip seal profile can be installed on all types of window and door frame materials: aluminum, PVC, and wood. The 16 mm lip seal profile can improve the aesthetics of the window and door frame compared to a brush seal. The 16 mm lip seal profile can be recycled. The 16 mm lip seal profile can be fitted by hand or with a tool.

Claims

Demands

1. A lip seal profile (16) for a window or door frame (10), the lip seal profile (16) being formed in one piece and having an elongated shape along an axis (X2), the lip seal profile (16) comprising: - a longitudinal fixing flange (18) extending along the axis (X2) and comprising a longitudinal body (22) made of a first material, and - at least one longitudinal sealing lip (20) extending along the axis (X2) and comprising a core (24) made of a second material more flexible than the first material, the longitudinal lip (20) being connected to the flange (18), characterized in that the body (22) of the flange (18) has a general H-shaped cross-section to define two longitudinal grooves (26, 28) located on two opposite sides of the body (22), a first of these grooves (26) being delimited by first and second longitudinal branches (30, 32) of the body, respectively upper and lower,and a second of these grooves (28) being delimited by third and fourth longitudinal branches (34, 36) of the body, respectively upper and lower, the longitudinal lip (20) being connected to an upper end of the body (22) of the heel (18), and in that the heel (18) further comprises a longitudinal wedge member (38) which is integral with the body (22) and which projects inside the first groove (26), said member (38) being elastically deformable inside the first groove (26).

2. Lip sealing profile (16) according to claim 1, wherein the first groove (26) has a depth (PI) greater than a depth (P2) of the second groove (28), each depth (PI, P2) being measured in a direction perpendicular to a median plane (Z) of the body (22) passing between the first and second grooves (26, 28).

3. Lip sealing profile (16) according to claim 1 or 2, wherein the fourth arm (36) has a shorter transverse dimension (H4) than the third arm (34), and / or the second arm (32) has a shorter transverse dimension (H2) than the first arm (30), each transverse dimension (H2, H4) being measured in a direction perpendicular to a median plane (Z) of the body (22) passing between the first and second grooves (26, 28).

4. Lip sealing profile (16) according to any one of the preceding claims, wherein each of the first and second grooves (26, 28) comprises a longitudinal bottom (26a, 28a) extending between two longitudinal flanks (26b, 26c, 28b, 28c) which are respectively defined by the two branches (30, 32, 34, 36) delimiting the corresponding groove (26, 28).

5. Lip sealing profile (16) according to claim 4, wherein the bottoms (26a, 28a) of the first and second grooves (26, 28) are flat and parallel.

6. Lip sealing profile (16) according to claim 4 or 5, wherein the flanks (26b, 26c) of the first groove (26) are parallel to the flanks (28b, 28c) of the second groove (28), and are preferably aligned transversely with the flanks (28b, 28c) of the second groove (28).

7. Lip sealing profile (16) according to any one of claims 4 to 6, wherein the flanks (26b, 26c) of the first groove (26) have a height (RI, R2) identical to within + / -10%, each height (RI, R2) being measured in a direction perpendicular to a median plane (Z) of the body (22) passing between the first and second grooves (16, 28).

8. Lip sealing profile according to any one of claims 4 to 7, wherein the flanks (28b, 28c) of the second groove (28) have different heights (R3, R4), each height (R3, R4) being measured in a direction perpendicular to a median plane (Z) of the body (22) passing between the first and second grooves (26, 28).

9. Lip sealing profile (16) according to any one of the preceding claims, wherein the fourth arm (36) has a free pointed end.

10. Lip sealing profile (16) according to any one of the preceding claims, wherein the fourth branch (36) comprises an inclined lower face (36a) forming a ramp.

11. Lip sealing profile (16) according to all claims 9 and 10, depending on any one of claims 4 to 8, wherein the free pointed end of the fourth arm (36) is at the intersection of the inclined lower face (36a) and the flank (28c) of the fourth arm (36).

12. Lip sealing profile (16) according to any one of the preceding claims, wherein the second arm (32) has a free pointed end.

13. Lip sealing profile (16) according to any one of the preceding claims, wherein the first arm (30) has a free end which is inclined upwards relative to the rest of the first arm (30).

14. Lip sealing profile (16) according to any one of the preceding claims, wherein the first branch (30) comprises an inclined lower face (30a) forming a ramp.

15. Lip sealing profile (16) according to any one of the preceding claims, wherein the member (38) has a generally planar shape and comprises two planar lateral faces (38a, 38b) oriented in opposite directions.

16. Lip sealing profile (16) according to any one of the preceding claims, wherein the member (38) is inclined with respect to a median plane (Z) of the body (22) passing between the first and second grooves (26, 28).

17. Lip sealing profile (16) according to any one of the preceding claims, wherein the member (38) has a free longitudinal edge (38c) oriented outwards from the first groove, and an opposite longitudinal edge (38d) connecting to the body (22).

18. Lip sealing profile (16) according to the preceding claim, depending on any one of claims 4 to 8 or 11, wherein the opposite edge (38d) of the member (38) is connected to the bottom (28a) of the first groove (28).

19. Lip sealing profile (16) according to the preceding claim, depending on claim 15, wherein one of the faces (38a) of the member (38) is oriented towards the bottom (26a) of the first groove (26), and the other of the faces (38b) of the member (38) is oriented towards the outside of the first groove (26).

20. Building joinery (10), comprising a frame (12) and a sash (14) mounted to slide within the frame (12), at least one of the elements selected from the sash (12) and the frame (14) having at least one lip seal profile (16) according to any one of the preceding claims, the lip seal profile (16) being mounted in a longitudinal groove (50) of the element by its base fixing (18) and cooperating by sliding with the other element by its sealing lip (20).

21. Method of mounting a lip seal profile (16) according to any one of claims 1 to 19 in a longitudinal groove (50) of a sash (14) or frame (12) of joinery (10), comprising the following steps: a) engaging the second longitudinal arm (32) of the body in the groove (50), and b) tilting the lip seal profile (16) until the fourth arm (36) engages in the groove (50) by elastic snap-fit.

22. Method according to the preceding claim, wherein the tilting is carried out around an axis (X2) which is an elongation axis of the lip sealing profile (16).

23. A method according to claim 21 or 22, wherein: - during step a), a first lateral rim (52) of the groove (50) is engaged in the first groove (26) and bears against the member (38) which is elastically deformed, - during step b), a second lateral rim (54) of the groove (50) cooperates by elastic snap-fit ​​with the fourth arm (36) and is engaged in the second groove (28), and - after step b), the member (38) exerts by elastic return the remainder of the lip sealing profile (16) towards the second lateral rim (54) to laterally wedge the lip sealing profile (16).

24. A method for replacing a brush seal with a lip seal profile (16) on a sash (14) or frame (12) of joinery (10), wherein it comprises the following steps: i) removal of a brush seal, the brush seal profile being extracted from a longitudinal groove (50) of the sash (14) or frame (12), and ii) mounting of a lip seal profile (16) according to any one of claims 1 to 19 in said groove (50).