FR2686122A1 - ELASTIC SEALING CORD FOR DOORS, WINDOWS OR THE LIKE. - Google Patents

Abstract

Only the end zone 8 on the head side of the back of the profile 6 with the partition part 9, projecting towards the transverse partition 10, is made of a material much harder than all the other parts 2, 3, 5 to 7, 10, 12, 15, 16 of the sealing bead. In the unstressed state thereof, starting from the point 11 of maximum curvature of the transverse partition 10, the profile part (a), extending towards the head end of the back 6, is longer than the profile portion extending towards the head end of the first outer side wall 12, the end (head side) connected to the transverse wall 10, of the first outer side wall 12 being offset by at least equal distance to the wall thickness d of the end zone 8, in harder material, of the back 6.

Description

Elastic sealing cord for doors 2 windows or similar La

  present invention relates to an elastic sealing bead for doors, windows or the like, comprising a foot part to be anchored in a retaining groove and comprising a head part connecting to the first, connected to the latter by a profile back , forming a closed hollow cross section, in which a covering lip of the retaining groove, projecting from the back of the profile, extends between the foot part and the head part, a transverse partition leaves from the side end head of the back of the profile, on the side, transverse partition which has a curved path towards the interior of the head portion and the other end of which is connected with a first lateral partition, extending in the direction of the lip covering, and which ends in a round profile chamber, forming a closed hollow cross-section, on its side opposite the back of the profile, in which of the profile chamber é, on its side facing the back of the profile, a second external lateral partition leaves in the direction of the covering lip, by which, in the event of sealing engagement, the chamber of the profile is supported towards the covering lip, the profile chamber can be applied against the back, in the case of a sealing engagement, this leads, in its upper end zone (head side), to a part of the partition projecting from the transverse partition and this included part is made of a material much harder than the remaining areas of the head part, in which the transverse partition is attached to the end of the projecting partition part and, in the event of sealing engagement, the second external lateral partition is inclined, when the profile chamber is applied against the back of the profile, at a greater angle relative to the plane of the back than in the unsolicited state of the sealing bead. In a known sealing bead of this type (German utility model 91 11 213, FIG. 3), there is provided, at the end (upper) on the head side of the back of the profile, a part of the partition projecting from that -this, which leaves at approximately a right angle to the back and has a length, approximately equal to the distance between the starting point of the external lateral partition, deviating towards

  the top of the cover lip, and the back of the profile.

  At the end of this projecting partition part, there is provided, transverse to its longitudinal direction, the transverse partition which protrudes, first almost parallel to the plane of the back of the profile, inside the hollow cross section of the head area, is deflected at the point of maximum curvature by a rounded curvature then extends again obliquely upwards,

  towards the first external lateral partition.

  But in the known sealing bead, the retaining rib, provided at the end on the foot side of the back of the profile, and which serves to anchor the foot area in the retaining groove, is made in one piece against the back of

  profiled and in the same hard material as this.

  Thanks to the very hard configuration, in relation to the other parts of the profile in the head area of the sealing bead, of the entire back of the profile and thanks to the formation of a projection, extending at an angle straight relative thereto, at the end on the head side of the back, this known sealing bead makes it possible to install it easily and mechanically in a corresponding retaining groove of an appropriate frame The force necessary to mechanically push the sealing bead in the retaining groove, can be introduced at the head side end of the back of the profile, in the latter, by the hard profile part, placed at this location, which offers a sufficiently large attack surface and rigid for

  absorb the pressure forces produced mechanically.

  This ensures easy insertion of the foot portion of the

  known sealing profile in the retaining groove.

  However, the configuration of this known sealing bead also allows, on the frame side, the production of a continuous sealing frame, without welding or without the use of miter cuts, the parts of the bead on the different sides of the frame can be pre-cut to length and

  placed end to end to form the closed frame.

  The known sealing bead certainly has the advantages indicated, but is only suitable to a limited extent for producing a continuous frame, in a conventional manner, with welded angles (which still gives the best seal with all frame configurations) and in particular, it is less suitable when the sealing frame is to be mounted in the retaining groove of a sash opening from a window, a door, etc. In fact, in such an assembly, the profile, in the form of a closed sealing frame, or slightly elongated to be introduced into the groove, so that it can be turned over But in the case of a hard sealing back over its entire length (as in the bead of known sealing), this necessary elasticity is very often prevented. According to a recent technique, closed, continuous sealing frames are also produced in a form which provides, in the area of each angle of the frame, a V-shaped miter cutout of the sealing bead, such that the sealing bead is not completely cut but only enough so that the point of the V-cutout is still a short distance from the head end of the sealing back This makes it possible to produce closed sealing frames without welding the cutting edges in the corners of the frame, but it is then important to press the cutting edges well against each other and d avoid undesirable deformations in the corners of the frame The continuous frames thus produced have a completely sufficient and practically sealed assembly of the cutting edges in the corners of the frame, which certainly does not give the same total tightness as a welded frame, but which in many cases guarantees a sufficient seal for practical use Since this new technique allows a significantly faster manufacturing of closed sealing frames as in the case of welded angles, it is also readily applied and very often requested, so that the new profiles must also be adapted

to this app.

  The document EP-A 436 810 describes a sealing profile proposed specifically for this application. In this, a reinforcement lining is inserted, along the back of the profile. This lining ends at a certain distance, before the head end end of the back of the profile, a specific reinforcement cord being provided at this point, in a material which is

  significantly harder than the rest of the sealing bead.

  The upper end of the sealing back is connected in this case, by a transverse partition, curved in the direction of the interior of the head area, with an external lateral partition on which the sealing surface is formed, in case sealing engagement But if to form a closed sealing frame with the known sealing bead, we practice, according to the new technique mentioned, miter cutting intended to form a frame angle, it remains at head end end of the back of the profile and of the outer side wall, partitions of roughly the same size by which the profile cords on the sides of the frame meet at this point in the corner area, otherwise separated by the miter cut, are still assembled together The partition still remaining after the miter cut, at the head end of the sealing bead, is relatively hard due to the reinforcing bead applied to this th right, while the partition remaining on the external lateral partition, is made of a flexible material Gold in practical application, it happens that precisely the softer partition, remaining on the external lateral partition, tends, when its dimensions increase, to bend more and more strongly towards the outside in the corner of the frame, which hinders the formation of a continuous sealing plane in the area of the corner of the frame The more the part remaining on the partition lateral or lateral, made of more flexible material, is large or thick, the greater the curvature which is established in the area of the corner of the frame, which can lead to the leaf, when it is in abutment, not no longer apply as desired against the sealing bead, in the corner area In addition, for the same reasons as those mentioned for the known sealing bead, this sealing bead is ill-suited to the production of frames continuous sealing with welded angles, at least in cases where the closed frame must undergo a certain elongation, when it is placed in the retaining groove, in order to be able to be introduced (turning over on the

leaf rebate).

  Starting from the above, the invention aims to improve the aforementioned sealing bead so that it is suitable for the production of continuous sealing frames having welded angles, as well as for the implementation of the new manufacturing process described above, without welding the corners, better sealing or overall sealing effect at the same time

  time be obtained in the area of the corners of the frame.

  According to the invention, this object is achieved with a sealing bead of the aforementioned type in that only the end zone, on the head side, of the back of the profile with the partition part, projecting from the transverse partition, is produced in a material significantly harder than all the other parts of the sealing bead and in that in the unsolicited state of the sealing bead, starting from the point of maximum curvature of the transverse partition, the section part extending towards the head end of the back of the profile, is longer than the profile part extending towards the end (upper), head side, of the first outer lateral partition, the end (upper), head side, connected to the transverse partition, of the first external lateral partition, being offset, in the direction of the foot zone of the sealing bead, by a distance which is at least equal to the thickness of the wall of the terminal zone of the back of profile, made in

harder material.

  The sealing bead according to the invention is surprisingly good for producing closed sealing frames with welded angles. This is due in particular to the fact that the use of the material which is significantly harder and less elastic is limited only to the end zone on the head side of the back of the profile and to the part of the partition projecting from the transverse partition This results, over the entire height of the sealing bead, still sufficient elasticity, such as is necessary for easy mounting of sealing frames

  closed and welded angles, in the retaining grooves.

  But the sealing bead according to the invention can also very well be used for the manufacture of continuous, closed sealing frames, at non-welded angles,

  according to the recent manufacturing technique described above

  above, particularly good results can be obtained by the specific cooperation of different individual characteristics. It is thus that thanks to the fact that the end (upper) on the head side of the first part of the partition (made of relatively flexible material), turned, the assembled state of the sealing bead, towards the counter-surface to be sealed is offset, relative to the position of the end on the head side of the back of the profile (which at this point is made of a material much harder than the external lateral partition), in the direction of the base area of the sealing bead, by a distance corresponding at least to the thickness of the wall of the end region of the back of the profile, that is to say ( in other words) that it is "lower", by this distance, than the end (upper) on the head side of the back of the profile, the partition remaining at the upper end of the back of the profile (made of hard material ) is clearly larger or "thicker" than the partition remaining at the upper end of the external lateral partition, when the notch is cut

  miter cut, due to this difference in height.

  The considerably smaller thickness of the partition remaining after the miter cut on the outer side partition (more flexible) is first of all quite possible because, when the angle is notched and not welded, the harder part at the end on the head side of the back of the profile anyway absorbs the main load of the assembly The relatively small size of the partition remaining on the external side partition, due to the difference in height, means that in the corner area of the frame there is no deformation, or only very small deformation, so that this results in the corner area the formation of a continuous sealing plane of the beads lateral sealing, connecting to each other, and therefore a good sealing effect, as well as the formation of an optically "clean" angle with a relatively uniform distribution of the pressure This constitutes a remarkable improvement in the manufacturing n of sealing frames closed with the new technique exposed, intended to produce non-welded frame angles The height offset provided according to the invention, which corresponds at least to the thickness of the material of the area

  hard end of the profile back, guarantees with certainty -

  whatever the height of the miter cut in the profile (it is understood, however, that there must remain on the external lateral partition a remaining part to serve as an assembly partition) that in each case, the remaining partition is large enough, at the head end of the back of the profile, to form a satisfactory assembly wall that transmits all the

  stresses that occur in the corner of the frame.

  In addition, thanks to the specific configuration of the upper transverse bulkhead, such that (in the non-stressed state of the sealing bead) starting from the point of maximum curvature of the transverse bulkhead, the assembly wing (section part ), extending to the upper end of the back of the profile, is longer than the assembly wing extending on the other side to the upper end of the outer side wall, in connection with the characteristic that, in sealing engagement, the second external lateral partition is inclined at a greater angle relative to the plane of the back of the profile than in the unsolicited state of the sealing, when the chamber s applied against the back of the profile, we obtain that the oblique lateral surfaces of the miter cut are slightly offset downwards, in sealing engagement or when the sealing end position is reached with respect to the covering lip, and thereby against the side surfaces applying each other, of the miter are pressed against each other This results in a further improved sealing effect. In a preferred variant of the sealing bead according to the invention, the end zone, made of a significantly harder material, is designed so as to extend along the back to the point where the wall of the chamber can s '' apply against the back, in sealing engagement Preferably, the harder end zone of the back of the profile and all the remaining parts of the head zone also have a thickness less (wall thickness) than the zone head, the cover lip and the remaining part of the back of the profile, which allows a saving of material, although reduced, in particular as regards the end zone of the back of the profile It is particularly preferred in this case that the thickness of the wall of the remaining parts of the head area and that of

  the end zone of the back of the profile, are equal.

  The arrangement and orientation of the different partitions and parts of the head area can be chosen in different ways, depending on the specific application. But in a particularly preferred manner, the first and / or the second external lateral partition is extends or extends, in the unassembled or unsolicited state of the sealing bead, however always approximately parallel to the back of the profile, but if the first external lateral partition is not oriented parallel to the back of the profile, it it is recommended to design it so that in the unassembled or unsolicited state of the sealing bead, it is inclined at an angle of less than 1 °, towards the back of the profile

(down).

  The chamber formed inside the hollow profile of the head cross section, which, when it comes to bear against the back of the profile in sealing engagement, not only gives reinforced support for the first external lateral partition, but is also favorable with regard to the soundproofing properties of the profile, has a cross section of

preferably circular or oval.

  It is also preferably provided that the first and / or the second external lateral partition open / open tangentially in the wall of the

profile chamber.

  Another preferred variant of the sealing bead according to the invention resides in the fact that the second external lateral partition opens directly into the covering lip, in which case it is again preferred that the second external lateral partition is supported at one point, between its mouth in the covering lip and its mouth in the wall of the profile chamber, by a support partition, relative to the back of the profile In this case, the location of this mouth point can be chosen at a height different from that of the second external lateral partition, but in many cases it is particularly favorable that the location of the mouth point is chosen in the middle of the second external lateral partition or in the area of the central third of its total extension In a particularly preferred manner, the support partition extends, starting from the second external lateral partition, oblivion cement, moving away from the covering lip,

  upwards towards the back of the profile.

  Another variant, also advantageous, of the sealing bead according to the invention, which is particularly recommended for its use as overlapping sealing, resides in the fact that the second external lateral partition does not open directly into the lip of overlap, but in a supporting partition which extends obliquely, from the back, towards the covering lip, downwards as well as beyond the mouth of the second external lateral partition, and is connected, at its end, by a third external lateral partition, offset laterally with respect to the second external lateral partition, with the covering lip. This gives a particularly high configuration of the head area, in which case it is preferred that the third external lateral partition, in the non-stressed state of the cord, either parallel to the first and / or to the second partition

  lateral lateral and / or to the plane of the back of the profile.

  In the case where the second external lateral partition opens directly into the covering lip and is supported by a support partition, it is particularly recommended to provide a hollow groove at the height of the mouth point of the support partition, on the opposite side thereof, from the second external lateral partition, which hollow groove facilitates pivoting of the part, situated above the latter, of the second external lateral partition, relative to

  the part lying below the hollow throat.

  Another particularly preferred variant of the sealing bead according to the invention also resides in the fact that the second or third external lateral partition, opening into the covering lip, opens into the covering lip, in the end zone thereof. ci, opposite the back of the profile, which makes it possible to make a lateral stop for a window edge mechanism, if necessary also by an additional allowance at this same location, in the

mouth point area.

  As regards the choice of the "softer" and "markedly harder" material used for the sealing bead according to the invention, it is preferred that the harder material in the end region of the back of the profile and its protruding bulkhead has a Shore A hardness of 85 or more and the softer material of the remaining profile parts has a Shore A hardness of 55 or less. It is particularly preferred that the back of the profile of the sealing bead according to the invention extends approximately in a straight line and the part of the partition, projecting from the transverse partition, has a section

  transverse round, preferably in an arc.

  The transition between the transverse partition and the first external lateral partition is also preferably curved, in particular preferably in an arc of a circle. Thanks to the curved configuration of the various transitions between the transverse partition and the first external lateral partition or the back of the profile, a particularly favorable deformation behavior is obtained, in sealing engagement, as regards bringing the first external lateral partition closer together

with the back of the profile.

  It is further preferred that the length of the end part, made of a harder material, from the back of the profile, be greater than the maximum curvature of the transverse partition, in the event of sealing engagement, which is particularly favorable when the harder end part of the sealing bead has a

  wall thickness less than the remaining part of the back.

  In the area of the hard end portion of the back of the sealing bead, it is thus produced, due to its reduced thickness, a greater housing width for the transversely domed transverse partition, in full sealing engagement, and therefore the possibility of a relatively reduced total width, in full sealing engagement, of the head of the sealing bead or the possibility of accepting a particularly large tolerance width for the sealing slot, a width which can still be covered

  with the sealing bead according to the invention.

  Various other benefits and features of

  the invention will emerge from the detailed description which

  follows Embodiments of the invention are shown by way of non-limiting examples on the

attached drawings.

  Figures 1, 2, 3 and 4 show different embodiments of the cross section of a sealing bead according to the invention, Figures 5 to 7 are schematic mounting views of the sealing bead according to the invention of Figure 1, at the start of the sealing engagement (Figure), in an intermediate position (Figure 6) and when the final sealing position is reached (Figure 7), Figures 8 and 10 are views of schematic assembly of the sealing bead according to the invention according to FIG. 2, in the form of a covering sealing bead, at the start of the sealing engagement (FIG. 8), in a central position (FIG. 9 ) and in the final sealing position (FIG. 10), FIGS. 11 to 13 are schematic assembly views of the sealing bead according to FIG. 5, at the start of the sealing engagement (FIG. 11), in an intermediate position (figure 12) and when a reaches the final position of the sealing engagement (Figure 13) and Figure 14 is a schematic view of part of a sealing bead according to Figure 2, showing

  a miter cut for making a frame angle.

  In the figures, the same elements or the equivalent elements of the sealing beads shown,

  have the same references.

  The views of Figures 1 to 4 show four different embodiments of the cross section of a sealing bead 1 Each of the four views generally shows a foot part 2 and a head part 4, under the shape of a closed hollow cross section Between the head part 4 and the foot part 2, there is provided a covering lip 5 which, in the assembled state of the sealing bead (see FIGS. 5 to 13), covers, on the upper side, the housing or retaining groove 21 in which the head part is anchored

  2, by means of at least one sealing rib 3.

  The foot part 2 and the head part 4 are assembled together by a profile back 6 which extends practically in a straight line, only the foot part 2 in the unassembled state having a slight bend, visible on the

Figures 1 to 4, back 6.

  In all the cross-sectional views shown of the profile, the back 6 also consists of an upper end zone 8 and of a remaining, lower part 7, which is connected to it The expressions "above" and "in bottom "are understood in the present embodiments, only in the direction of the views of FIGS. 1 to 4, that is to say that" up "or" up "means the side opposite to the foot area or towards the side opposite the foot area and "down" or "down" means the side opposite the head area or

  toward the side opposite the head area.

  At the upper end of the terminal zone 8 of the back 6 of the profile, the latter is extended, after a change of direction in a circle, by a partition part 9 projecting laterally to which is attached (and this in the same direction as this) a transverse partition 10 As the figures show, the transverse partition 10 is curved in the direction of the interior side of the hollow cross section of the head area (that is to say "downwards") , the path of the transverse partition 10 having roughly the shape of a V, in its

  cross section, in the views of Figures 1 to 4.

  The point of the transverse partition 10 at which, in the unsolicited state, the sealing bead 1 bends the furthest downward, is designated in the figures by the reference 11 The length a of the total assembly partition , between this point 11 of maximum curvature and the upper end of the terminal area 8 of the back 6, is however greater than the length b of the total intermediate partition, between point 11 of maximum curvature and the upper end of a first external lateral partition 12, connected to the transverse partition 10, which lateral partition 12 extends downwards, from the upper end, opposite the back 6, of the transverse partition 10, as shown in the figures The area transition 13, between the transverse partition 10 and the first external lateral partition 12, is rounded, preferably in an arc of a circle, as the

also show figures 1 to 4.

  Due to the difference between the lengths a and b of the intermediate partitions, between the point II of maximum curvature of the transverse partition 10 and the respective upper end of the terminal zone 8 of the back 6 of the profile or of the first external lateral partition 12, a height offset A is formed between the transition zones which form the transition between the transverse partition 10 and the terminal zone 8 of the back 6 or the first external lateral partition 12 The upper end of the external lateral partition 12 ( more precisely, the upper end of the transition zone 13 between the transverse partition 10 and the outer lateral partition 12) is thus offset by the distance A, downwards, relative to the upper end of the back 6 of the profile ( more precisely, the transition zone in the form of a projecting partition part 9, rounded) The offset A, in the non-stressed state of the sealing bead 1, is at m oins equal to the thickness (wall thickness) d of the terminal zone 8 of the back 6 of the profile, which is at the same time also the wall thickness or thickness of the partition part 9 projecting from the zone

  terminal 8, towards the transverse partition 10.

  In all the cross-sectional views of the profile, represented in FIGS. 1 to 4, the first external lateral partition 12 further extends downwards, until it ends in a hollow cross section in the form of a closed pipe, which delimits a profile chamber 14, of circular cross section The first external lateral partition 12 arrives in this case, as clearly shown in FIGS. 1 to 4, tangentially in the wall 15 surrounding the chamber 14 of the profile and this

  on its side opposite to the back 6 of the profile.

  All the cross-sectional views of the profile, represented in FIGS. 1 to 4, also have in common that, on the side facing the back 6 of the profile, of the chamber 14 of the profile, a second external lateral partition 16 extends obliquely downwards, towards the back of the profile, at a small angle, which in the practical embodiment must not exceed approximately 10, with respect to the direction of the plane of the back 6 (the view in FIG. 1 represents this angle larger, only for clarity), until the second external lateral partition opens from the top into the covering lip 5 On both sides of the mouth point of the second external lateral partition 16 , hollow grooves 17 are provided which facilitate the pivoting of the second external lateral partition 16,

in sealing engagement.

  In the profile shapes, shown in FIGS. 2, 3 and 4, the second external lateral partition 16, starting from the chamber 14 of the profile, extends

parallel to the back 6.

  In the cross-sectional view of the profile, shown in FIG. 2, the second external lateral partition 16 (as in the view in FIG. 1) extends far enough to open, from the top, into the covering lip 5 In the profile of FIG. 2, the second external lateral partition 16 is however considerably longer than in the view in FIG. 1, even longer than the first external lateral partition 12, while the length of the second external lateral partition 16 in the profile of Figure 1, is significantly smaller (about half the size) than the first exterior side wall 12 The second exterior side wall 16 is made up, in the profile according to Figure 2, of two parts of partition 16 A , 16 B, a hollow groove 17 being provided at their point of assembly At the point where the partition parts 16 A, 16 B meet, a support partition 18, which connects the side partition 16 and the back 6 of the profile, extends obliquely upwards, on the side, opposite the back 6, of the second external lateral partition 16 The area of the second external lateral partition 16, which is located above the point mouth of the support partition 18 in this second external lateral partition, is designated by 16 A and opens at the top, in the wall 15 of the chamber 14 of the profile, while the zone of the lateral partition, located at below the mouth point of the support partition 16, is designated by 16 B and opens, from the top, into the covering lip 5 In this variant, the lower zone 16 B of the second external lateral partition 16, the support partition 18, the back 6 of the profile and the covering lip form a closed hollow cross section 26, of stable shape, which also does not vary in sealing engagement If, in sealing engagement, the first exterior side wall 12 is d moved more and more, against the counter-sealing surface, towards the back 6 of the profile, only the partition part 16 A, situated above the mouth point of the support partition 18, pivots in this case, as shown in the schematic views of FIGS. 8 to 10, in the direction of the back 6 of the profile, while the closed hollow cross section 26 practically does not change

  shape, due to its great rigidity.

  In the cross-sectional views of the profile, shown in Figures 3 and 4, a difference exists compared to the cross-sectional view of the profile of Figure 2, in the sense that here (in the non-stressed state of the bead sealing), the second external lateral partition 16, parallel to the back 6 of the profile, does not extend to the mouth in the covering lip 5, but opens, from the top, into the partition support 18 extending obliquely downwards, from the back 6 of the profile, the support partition 18 extending beyond the opening point of the first external lateral partition 16 (see view of FIGS. 3 and 4) and extending, only at its end, located behind this mouth point, by a third external lateral partition 19, again parallel to the back 6 of the profile, which lateral partition opens on its side, from the top, into the covering lip 5, at its free end The forms of he profiles of Figures 3 and 4 differ only in that in the view of Figure 4, at the lower end of the third outer side wall 19, that is to say in the region of its mouth in the cover lip 5, there is an additional stiffening thickness which does not exist in the profile of Figure 3 and which, in the assembled state of the sealing bead, forms a stop, sealing side, for a mechanism edge

  window (see figures II to 13).

  The shapes of the profiles of Figures 2 to 4 are particularly suitable as a cover sealing bead for leaves; in the profile of Figure 2, as shown in Figures 8 to 10, the sash wood forms the lateral stop for the window edge mechanism, while in the shapes of the profiles of Figures 3 and 4, the edge stop window mechanism operates on the side of the sealing bead, i.e. at the end of the

cover lip 5.

  All the sealing cords shown in the figures also have in common that only the upper end zone 8 and the projection 9 connecting to it or projecting therefrom in the direction of the transverse partition 10, are made of 'integral with each other and are made of a material much harder than all the other parts or partitions of the sealing bead 1 This is represented in the figures by more tightly hatched hatches. Plastic is preferably used in this case. having a Shore A hardness of at least 85 and for the softer material of the remaining parts of the profile, a plastic material with a Shore A hardness of at most 55. In this case, particularly suitable weldable thermoplastics are used,

of suitable hardness.

  In Figures 5 to 7, the profile of Figure 1, in Figures 8 to 10, the profile of Figure 2 and in Figures 11 to 13, the profile of Figure 4 are shown in the assembled state, in three positions, in each case the selected view showing the mounting of the profiles in the retaining groove 21 of the leaf 22 of a window or a door In the views of FIGS. 5 to 7, the mounting of the cord is shown sealing of FIG. 1, in the rebate of the leaf, in the views of FIGS. 8 to 13, the mounting of the sealing bead of FIGS. 2 or 4,

  in the covering of a leaf 22.

  In each case, the sealing profile concerned is anchored, with its foot portion, in the retaining groove 21, by means of retaining ribs 3 which, when introduced into the retaining groove, are more strongly deformed than the views in Figures 5 to 13 show, to get the effect in practice

anchor wanted.

  The back 6 of the sealing bead extends in each case along a corresponding application surface of the leaf 22, the covering lip 5 completely covering the retaining groove 21, on its upper side, and extending still a little over the width of the groove 21; in the views of FIGS. 11 to 13, it even forms, due to the thickness 20 made at the end of the covering lip 5, a stop for a window edge mechanism 25 (shown in

  dotted only in Figures 11 to 13).

  As shown in the views of FIGS. 5 to 13, in the shapes of sections shown, at the start of the sealing engagement (see FIGS. 5, 8 and 11), the head part 2 still has its unsolicited shape (not deformed) in which it does not yet exert any elastic pressure or restoring force, to produce a sealing effect In the initial position, shown in FIGS. 5, 8 and 11, at the start of the sealing engagement, the counter-surface 23 ensuring the sealing of a sleeping frame 24, comes in a first application contact with the lateral partition 12, in the region of its upper end. The sealing engagement continuing, it occurs while increasing compression of the head portion of the sealing bead, the first external lateral partition 12 being pressed more and more

  more towards the back 6 of the profile, by the counter

  surface 23 ensuring the tightness of the sleeping frame 24 In doing so, the surface 23, which is applied against the outside of the first external side wall 12, of the sleeping frame 24, moves at the same time along the first side wall outside 12, downwards, and the sealing slot decreases more and more, as shown in FIGS. 5 to 13 At the same time, the transverse partition 10 is bulging more and more, on the upper side of the part of head 4 The chamber 14 in the form of a pipe, of the profile, is also pressed further and further, in the direction of the back 6 of the profile and the first lateral partition 16, starting from this, is increasingly

  more folded down towards the back 6.

  In the views of FIGS. 8 to 13, the transverse partition 16 is only folded down insofar as it is located above the point of opening of the support partition 18 In the views of FIGS. 8 to 10, this means that only the upper part 16 A of the second external lateral partition, made up as a whole of parts 16 A and 16 B, performs the forced folding movement, by bringing the chamber 14 and the back 6 together, while the part of the lower partition 16 B of the second external lateral partition 16 or the hollow cross section 26, formed by the third external lateral partition 19, the covering lip 5 and the back 6, remains stable in its shape Figures 6, 9 and 12 represent this central position during sealing engagement. Finally, the closed cross-section in pipe of the chamber 14 of the profile, reaches, on its side facing the back 6, in application contact against the back 6, at a point B (FIG. 7) Figures 7 and 13 represent this situation in which the final position of the sealing engagement and therefore the narrowest sealing slot width S (see FIG. 7) is already

often reached.

  But in the view of FIG. 10, for the profile of FIG. 3, the final position of the sealing engagement (with minimum slot S) is only reached after another reconciliation of the standing frame 24 and the leaf 22, the initial circular cross-section of the pipe-shaped chamber 14 (see FIGS. 8 and 9) being

crushed in oval.

  As shown in Figure 10 (which also applies to all other views of the figures), the length L of the terminal region 8 of the back 6 of the profile is slightly greater than the maximum length of curvature 1, occurring when the slot S is the smallest of the transverse bulkhead 10 Due to the reduced thickness of the wall of the end portion 8 of the back 6, a particularly large housing volume is made for the transverse bulkhead, precisely in the area in which the bulkhead convex transverse must be housed, in the final sealing position In this case, the length L of the terminal part 8 of the back 6 is chosen just enough so that it does not reach the point of application B (FIG. 7) or the highest point of application B (FIG. 10), which means that the chamber 4 in the form of a pipe, applying against the back 6, is applied against the even thicker (and more flexible) part 7 ) at this point, from the back 6 of the profile, so it results in overall insulation properties

particularly good phonic.

  To use the sealing beads, shown in the figure, for the manufacture of continuous, closed sealing frames, not welded in the corners, according to the new process described above, miter cuts 27 are made in V, at the points, corresponding to the angles of the frame, of the continuous sealing bead, as shown, in principle only, in FIG. 14 for a sealing bead of general shape according to FIG. 2 FIG. 14 represents a miter section 27 of this type in dotted lines In this case, starting from the foot area of the sealing bead, the miter cut 27 to be practiced, with its apex, is carried out at a height which corresponds to the level line SS represented in dotted in FIG. 2 This means that the sealing bead is cut, by the miter cut 27, from its foot upwards, just before the upper end of the first external lateral partition 12, which means that the go ie partition, still remaining at its upper end, has only a small residual height Xl, roughly corresponding to its wall thickness, while the partition portion remaining at the upper end of the back 6, made of material significantly harder, has a residual thickness X 2 much larger than the first The remaining flexible part of the side wall 12 is so small that after removing the miter cut 27 (Figure 14) during pivoting of the sealing bead 1, to form the angle and for the application of the miter surfaces 28, 29 against each other, resulting from the cut 27, it causes practically no deformation on the upper side, facing the waterproofing surface to be sealed, the sealing bead The much thicker remaining partition of the upper end portion 8 of the hard back 6 absorbs the main load, exerted during assembly, and provides a bond is sufficiently strong between the side partitions of the sealing frame, folded down one

  towards each other, meeting in the corner.

  The end portion 8, made of a significantly harder material, of the back 6, has a wall thickness d significantly smaller than the (remaining) area 7 of the back 6 of more flexible material, the wall thickness of which is substantially more important, as shown in the figures (Dl) The thickness D 2 of the covering lip 5 and the thickness D 3 of the retaining rib 3 are also greater than the thickness d of the end portion 8 On the other hand , it is entirely advantageous that the thickness of all the other partitions of the head zone, that is to say the wall thickness of the transverse partition 10, of the transition zone 13, of the first , the second and third external lateral partition 12, 16 or 16 A, 16 B and 19 as well as the wall 15 of the chamber 14 of the profile and of the support partition 18, is approximately equal to the thickness of the terminal part

8 of the back 6 of the profile.

  For all the embodiments shown in the figures, in the unsolicited state of the sealing profile, the second external lateral partition 16 or 16 A, 16 B is inclined, at an angle a, relative to the flank of the back 6 (see Figure 5), which is less than the angle of inclination f (Figure 7) formed relative to the plane of the back 6 of the profile, when the chamber 14 in the form of a pipe is applied with its wall 15 against the back 6, 7 of the profile We thus obtain that in relation to the covering lip 5 the height position of the chamber 14 in the form of a pipe is greater than the start of

  the sealing commitment to what it is at the end, that is

  that is to say that at the end of the sealing engagement, the chamber 14 is lower than at the start, with the consequence that the first external lateral partition 12 is therefore also slightly displaced downwards. with the geometry of the transverse partition 11, this means that when the sealing position is reached, the miter cutting surfaces 28, 29, formed at the corners, are moved towards each other and therefore more firmly pressed together against others, which makes it possible to obtain a particularly good sealing effect, in

the frame corner area.

Claims (15)

  1 Elastic sealing cord for doors, windows or the like, comprising a foot part to be anchored in a retaining groove and comprising a   head part connecting to the first, connected to it   ci by a profile back, forming a closed hollow cross section, in which a covering lip of the retaining groove, projecting from the back of the profile, extends between the foot part and the head part, a transverse partition starting from the end on the head side of the back of the profile, on the side, transverse partition which has a curved path towards the interior of the head portion and from the other end from which extends a first lateral partition outer, in the direction of the covering lip, which ends in a profile chamber, forming a hollow hollow cross section, closed, on its side opposite to the back, from the side, facing the back, of the profile chamber, a second external lateral partition leaves in the direction of the covering lip, by which, in the event of sealing engagement, the chamber is supported towards the covering lip, the chamber can be applied c ontre the back of the profile, in the case of a sealing engagement, it leads, in its end zone on the head side, to a part of the partition projecting from the transverse partition and this included part is made of a material clearly harder than the remaining areas of the head part, in which the transverse partition is attached to the end of the protruding partition part and, in the event of sealing engagement, the second external lateral partition is inclined, when the profile chamber is applied against the back of the profile, at a greater angle to the plane of the back than in the unsolicited state of the seal, characterized in that only the end zone (8) on the head side of the back of the profile (6) with the partition part (9), projecting towards the transverse partition (10), is made of a material much harder than all the other parts (2, 3, 5 to 7, 10, 12 , 15, 16, 18 to 20) of   sealing bead (1) and in the unsolicited state thereof   ci, starting from the point (11) of maximum curvature of the transverse partition (10), the profile part (a), extending towards the head end of the back (6), is longer than the profile part (b) extending towards the head end of the first external side wall (12), the end (head side) connected to the transverse wall (10) of the first external side wall (12) being offset by '' a distance (A), relative to the head end of the back (6), towards the foot part (2) of the sealing bead (1), distance (A) which is at least equal to the wall thickness (d) of the area   terminal (8), made of harder material, back (6).   2 elastic sealing cord according to claim 1, characterized in that the end region (8), made of a significantly harder material, does not extend along the back (6) to point (B) o the wall (15) of the chamber (14) can be applied against the   back (6), in sealing engagement.   3 Elastic sealing cord according to one   any one of claims 1 or 2, characterized in that   the foot part (2), the covering lip (5) and the back (6) (without the end zone 8)) have wall thicknesses (DI, D 2, D 3) greater than the end zone ( 8) harder on the back (6) and that all the remaining parts (10, 12, 15, 16, 18, 19) of the part of head (4).   4 elastic sealing cord according to claim 3, characterized in that the wall thickness of the remaining parts of the head part (4) and the thickness (d) of the end region (8) of the back (6) are equal. Elastic sealing cord according to one   any one of claims 1 to 4, characterized in that   the first and / or second external lateral partition (12; 16; 16 a, 16 b) in the unsolicited state of the cord (1), extends / extend approximately parallel to the back (6) of the streamlined. 6 Elastic sealing cord according to one   any of claims 1 to 5, characterized in that   the first external lateral partition (12), in the non-stressed state of the sealing bead (1), is inclined at an angle less than 10, in the direction of the back (6) of the profile. 7 Elastic sealing cord according to one   any one of claims 1 to 6, characterized in that   the cross section of the profile chamber (14) is circular or oval.   8 Elastic sealing cord according to one   any of claims 1 to 8, characterized in that   the first and / or the second external lateral partition (12; 16; 16 a, 16 b) opens / opens tangentially   in the wall (15) of the profile chamber (14).   9 Elastic sealing cord according to one   any of claims 1 to 8, characterized in that   the second external lateral partition (12) opens out   directly into the cover lip (5).   10 Elastic sealing cord according to one   any of claims 1 to 9, characterized in that   the second external lateral partition (12) is supported at a point, between its mouth in the covering lip (5) and its mouth in the wall (15) of the profile chamber (14), by a support partition (18), by relative to the back (6) of the profile.   11 elastic sealing cord according to claim 10, characterized in that the support partition (18) opens into the second external side partition (12), approximately in the middle or in the area of the   central third of its total extension.   12 Elastic sealing cord according to one   any of claims 10 or 11, characterized in   that the support partition (10) extends, from the second external lateral partition <12), obliquely, moving away from the covering lip (5), upwards,   towards the back (6) of the profile.   13 Elastic sealing cord according to one   any of claims 1 to 12, characterized in that   the second external lateral partition (12) opens into a support partition (18) which extends obliquely, from the back (6), towards the covering lip (5), downwards as well as at beyond the mouth of the second external lateral partition (12), and is connected, at its end, by a third external lateral partition (19), offset laterally with respect to the second external lateral partition (12), with the lip of cover (5).   14 elastic sealing cord according to claim 13, characterized in that the third external lateral partition (19), in the non-stressed state of the cord (1), is parallel to the first and / or to the second lateral partition   outside (12; 16) and / or on the plane of the back (6) of the profile.   Elastic sealing cord according to one   any of claims 10 to 12, characterized in that   hollow groove (17) is formed facing the mouth point of the support partition (18), on the opposite side thereof, of the   second external lateral partition (16 a, 16 b).   16 Elastic sealing cord according to one   any one of claims i to 15, characterized in that the   second (12) or third (16) external lateral partition, opening into the covering lip (5), opening into the covering lip (5), in the end zone thereof, opposite the back (6) of the profile.   17 Elastic sealing cord according to one   any one of claims 1 to 16, characterized in that the   harder material of the end zone (8) of the back (6) of the profile and of its projecting part of partition (9) has a Shore A hardness of at least 85 and the softer material of the remaining profile parts (3, 7 , 10, 12, 15, 16, 16 a, 16 b, 18, 19) presents a Shore A hardness of maximum 55.   18 Elastic sealing cord according to one   any of claims 1 to 16, characterized in   that the back (6) of the profile extends approximately in a straight line and the partition part (9), projecting from the transverse partition (10), has a round cross section, of preferably in an arc.   19 Elastic sealing cord according to one   any of claims 1 to 18, characterized in that   the transition (13) between the transverse partition (10) and the first external lateral partition (12) is curved, preferably in an arc.   Elastic sealing cord according to one   any one of claims 1 to 19, characterized in that   the length (L) of the end part (8), made of a harder material, from the back (6) of the profile, is greater than the maximum curvature (1) of the partition   transverse (10), in case of sealing engagement.