FR2694952A1 - System for fixing a curtain wall stiffener on a building element. - Google Patents

Abstract

The invention relates to a system for fixing a curtain wall stiffener to a building element. This fixing system is characterized in that it comprises a connecting piece (4) which can be made integral with the stiffener and which laterally comprises at least one T-shaped groove; at least one square (15a), each wing (14a, 18a) of which has an elongated hole perpendicular to its edge; at least a first bolt (10a), the head (9a) of which is housed with a slight clearance in said groove, however-that its threaded part passes through the elongated hole which is made in one (14a) of said wings of said square ( 15a); and at least a second bolt (19a) which fixes the other wing of said bracket (15a) on said building element (3). Application to building.

Description

The present invention relates to a fixing system

  for mounting a curtain wall stiffener on a building element which may be a slab nose, a

  facade, a metal structure or the like.

  Such fastening systems are known in which the stiffener is screwed onto an intermediate piece which

  extends parallel to the building element, for the purpose

  felt, and whose ends are bent at right angles, being directed away from the building element, to form a kind of legs A bracket is bolted by one of its wings on each of these legs, 'other

  wing of each square being in turn bolted to the

  The bolt that fixes each bracket to

  the intermediate piece passes through an elongated vertical hole

  in one of these elements and through a horizontal elongated hole in the other, which allows, before

  the tightening of the bolt, a limited adjustment in these two

tions -

  In practice, however, it is desirable to

  to be able to make such an adjustment in three ortho-

  between them, which is not the case in the known fastening system. Moreover, this known device does not allow

  not to fix the stiffener closer to the element of con-

  truction, because its minimum distance from the latter is determined from the beginning by the position of the elongated hole

  horizontal position in the intermediate piece

  or in the corresponding square.

  Also, an object of the present invention is to

  to relate the disadvantages of the known device and to provide a fastening system of the kind specified above which allows adjustment in three orthogonal directions and which allows

  to mount the stiffener at a very short distance from the

  construction on which it is to be fixed.

  According to the invention, this purpose, as well as others which

  will appear later, such as those

  an extremely solid attachment and ease of assembly with simple, robust and inexpensive parts,

  achieved by a fixation system of the specific kind

  characterized in that it comprises a connecting piece which can be secured to the fixator to be fixed and which laterally comprises at least one T-shaped groove in cross-section, which is vertical in position mounting and open to the outside;

  at least one bracket whose each wing has a hole allon-

  ge perpendicular to its edge; at least a first bolt whose head is housed with a small clearance in the aforementioned groove and which is substantially prevented from rotating about its axis, while its threaded portion passes through the hole

  lying in one of the wings of the special square.

  cified above, and that his nut is tight on the face of

  the latter which is opposed to the connecting part of the system.

  tem; and at least one second bolt that secures the other wing

  of the square on the building element on which the rai-

  deur must be fixed, and this, by crossing the elongated hole

  which is arranged in this other garlic and the square.

  We understand that these provisions make it possible

  to adjust in three orthogonal directions the position of

  In fact, the first bolt specified above is intended to fix a bracket on a connecting piece, and this fixing can take place at any level of the latter in the vertical direction, since the head of the bolt, before its

  tightening, may be placed at any point in the

  T-shaped vertical niche which is provided in the

  This ensures the adjustment in the vertical direction

  down. On the other hand, the square specified above is provided on each of its wings with an elongated hole, so

  that, by construction, these two elongated holes are horizontal

  One of them is intended for the passage of the first bolt specified above which fixes one wing of the bracket to the connecting piece, while the other serves for the passage of a second bolt which fixes the other wing of the square on the building element thus fixing on

  the latter the whole formed by the square, the connecting piece

  sound and the stiffener attached to the curtain wall As each

  these two fixings can be achieved by blocking the

  concerned at any point in the extended hole corresponding to

  laying, it is clear that one can thus achieve an adjustment of the relative position of the square relative to the room

  link, on the one hand, and in relation to the element of con-

  truction, on the other hand, which provides two directions of

  These two directions are horizontally

  and perpendicular to each other, as are the elongated holes of the square in question, and each of them is perpendicular to the vertical adjustment direction which has been mentioned above, which provides the adjustment in three

  orthogonal directions that was referred to.

  In fact, the fixing system according to the invention is advantageously symmetrical with respect to the median vertical plane of the stiffener that is to be fixed, so that its connecting piece comprises two T-shaped grooves which

  are symmetrical on both sides of this plane and which

  Each of these two bolts attaches a square to the connecting piece, and so there are two symmetrical brackets which fix the assembly on the bolt. element of construction It is clear that this provision increases

  considerably the strength of the fixation, and this, at least

  because they are identical organs which are

  used on both sides of the connecting piece.

  Advantageously, the connecting piece which connects the stiffener to the building element via the brackets specified above is a profiled piece which

  has the shape of a U at right angles in transverse section

  dirty and which closely matches the outer contours of the stiffener The latter is enclosed by the wings of the U of the profiled connecting piece and, preferably, a bolt

  transverse, that is to say perpendicular to the stiffener,

  pours holes in it and in the wings of the

U to make the whole together.

  According to an advantageous embodiment of the system,

  according to the invention, the special connecting piece

  cified above extends outward in one piece by a vertical rib which extends over its entire height and in which is formed the vertical groove T-shaped which has been mentioned above Compared to a provision o this groove would be formed in a wing of rectangular cross section of the profiled connecting piece, this embodiment has the advantage of requiring less material, and therefore to be less expensive,

  since the extra thickness that is necessary to accommodate the reason-

  T-piece and the bolt head it contains is limited to

  part of the wing of the profiled piece, namely the

long specified above.

  On the other hand, it is advantageous that the surfaces of the connecting piece and the square which are intended to be clamped against each other by the first bolt specified above are each provided with a vertical notch.

  The combined benefits serve, on the one hand, to increase the

  contact faces of the bracket and the profiled connecting piece, and therefore the friction between these two members, which makes the connection more solid, and, secondly, to ensure the relative positioning of the two parts in question, so

  that the verticality of the connecting piece is necessary to

  by the horizontality of the elongated holes in the

re.

  As for the first bolt specified above that serves

  tighten the connecting piece together and affix it to the

  re specified above, it is preferably a simple bolt with square head As this square head is housed with a small clearance in the bottom of the T-shaped groove of which it has been mentioned above, it is clear that the bolt in

  question is prevented from rotating around its axis, this

  tightening his nut on the corresponding wing without problems

  On the other hand, the small clearance between the bolt head and the bottom of the T-shaped groove makes it possible to slide the bolt vertically along the rim.

  before tightening, and thus to fix at will the posi-

  the bolt, and therefore the square, in the direction

  tical. To prevent the head of this first bolt from escaping from its groove, the latter is advantageously provided, at least at one of its ends, with a stop which can be in the form of a boss, 'an ankle,

of a screw or the like.

  According to one variant, two superposed stiffeners are made integral with the same connecting piece and,

  preferably at least one of these stiffeners is made

  the connecting piece by means of a transverse bolt

  sal, the latter through the corresponding stiffener through holes that are elongate in the vertical direction, which allows to absorb thermal expansion.

  The following description, which does not present

  no limiting character, will make it possible to understand

  The present invention may be practiced. It should be read with reference to the accompanying drawings, in which: The figure shows a horizontal sectional view of the fastening system according to the invention in a first embodiment;

  FIG. 2 represents an exploded perspective view

  of the object of Figure 1 from which the stiffness

  the element of construction to which it must be attached; and: Figure 3 is similar to Figure 1, but

  represents another embodiment of the fastening system

according to the invention.

  In all that follows, it will be assumed that this

  fastening system is in its normal position of use

  this is to say as shown, but in exploded view, in Figures 1 and 3, this gives all their meaning

  to expressions like "horizontal" and "vertical" or -sup-

  The directions "transverse" and "longitudinal" are the horizontal directions which are respectively perpendicular and parallel to the stiffener to be fixed, and that these directions are

  respectively indicated by the arrows X and Y in the figures

res 1 and 2.

  In its embodiment shown in Figures 1 and 2, the fastening system according to the invention is intended to connect a single stiffener 1 of a curtain wall 2 to a slab nose, a facade, a metal structure or a similar building element that is suggested in 3

  in Figure 1 and which will be called "slab nose" by the following

  for reasons of simplification, although the invention

  not be limited to this particular type of building element.

  For its part, the assembly of the stiffener 1 and the

  Curtain wall 2 is classic, and it will not be described here.

  As seen in Figure 1, the stiffener 1 is embolted, virtually without play, in a profiled connecting piece 4 whose general shape is that of a U at right angles in cross section, and it is made integral

  with a bolt 5 that crosses the rim

  disseur 1 and the wings 4a and 4b of the connecting piece 4.

  On the other hand, each of these wings 4a and 4b is

  runs in one piece to the outside of the profiled piece

  4, over the entire height of the latter, by a vertical rib

  Sa or 6b, respectively, this one, seen in horizontal section

  tale, extending from the face of the profiled piece 4 which faces the slab nose 3 to the middle of the wing

  corresponding 4a or 4b of the profiled piece 4.

  As the system of the invention is perfectly symmetrical with respect to the median vertical plane P of the piece

  link 4, we will be content to describe the

  which is to the left of this plane P in Figures 1 and 2 and

  which belongs to the lateral extension in the form of

  vertical vane Sa of the wing 4a of the profiled piece 4.

  The lateral extension Sa is traversed vertically from one end to the other by a passage 7a of rectangular cross-section which opens outwards through a groove 8a, also vertical, thus constituting a T-shaped groove in section. transverse The square head Ga of a bolt 1 Oa is inserted with a small clearance in the vertical passage 7a, and its stroke is limited by stops lla which are located respectively at the upper part and the

  lower part of the passage 7a, of which only the upper stop

  is shown in Figure 2 and can be

  by bosses, screws, plugs or

  For its part, the threaded portion 12a of the bolt Oa protrudes from the vertical groove 8a of the profiled piece 4 to cross a horizontal elongated hole 13a which

  is formed in a vertical wing 14a of a square 15a.

  The nut 16 has bolt Oa therefore allows to tighten the latter.

  re, by its wing 14a, on the profiled part 4 or, more precisely

  This operation is facilitated by the fact that the threaded rod 12 has bolt 10a is prevented from rotating, since it is with a weak game that its square head Sa is housed in the passage

vertical 7 a.

  Furthermore, a vertical notch 17a is present on the faces in contact with the wing 14a of the square 15a and the

  extension Sa of the profiled part 4.

  It is by its other wing 18a that the bracket 15a is fixed to the slab nose 3, and this, by means of a bolt 19a which

  is only indicated by its axis in Figure 2 and which

  pours a horizontal elongated hole 20 formed in the wing 18 a

  at the same level as the elongate hole 13a of the other wing 14a.

  For reasons of symmetry that have been mentioned above, a bracket 15b can be fixed by a bolt.

  to the profiled piece 4, on the other side of it with

  square bracket 15a, its wing 18b which is attached to the nose of

  slab 3 extending of course opposite the corresponding wing.

18% of the square 15 a.

  It is understood that the relative position of the profiled part 4 and the bracket 15a can be modified in the vertical direction Z of FIG. 2 by sliding the head 9a of the bolt Oa into the vertical passage 7a before clamping. The same applies to the bracket 15b which is normally fixed on the profiled part 4 to the same

height than square 15 a.

  In the longitudinal direction Y, that is to say horizontally and parallel to the plane of the stiffener 1, the relative position of the profiled part 4 and the bracket 15a can be modified, always before the tightening of the nut 16 a, by changing the location of the elongate hole 13a through which the threaded rod 12a of the bolt 1a Oa The relative position of the other bracket 15b with respect to the profiled part 4 in the Y direction is generally adjusted by such that the wings 18a and 18b of the two brackets 15a and 15b are

located in the same plane.

  Finally, the relative position of the assembly formed by the profiled connecting piece 4 and by the two brackets 15a and 15b with respect to the slab nose 3 can be modified in the transverse direction X, that is to say horizontally and perpendicularly to the plane of the stiffener 1, by changing, before the tightening of the bolts 19a and 19b, the location of the elongate holes 20a and 20b that these bolts pass through in the

squares 15 a and 15 b.

  It is clear that this adjustment possibility is limited in the vertical direction Z by the distance between

  the abutments 11a and, in the transverse directions X and lon-

  longitudinal Y, by the length of the elongate holes 13a, 13b and,

respectively, 20 a and 20 b.

  Note that the adjustment is continuous in the transverse directions X and vertical Z, while it is slightly discontinuous in the longitudinal direction Y, since it can take place only with a step equal to the width

  Notches of notches 17a, 17b This disadvantage is wide-

  This is compensated by the fact that this avoids any risk of sliding in the longitudinal direction Y once the nut 16a or 1bb has been tightened. In addition, the contact surfaces between the profiled part 4 and the brackets 15 a and 15 b

  are increased, which reduces the risk of slipping

  in the vertical direction Z Finally, the notches 17a, 17b automatically position the brackets a and 15b, so that the elongated holes thereof

  take themselves a perfectly horizontal position.

  Note also that, as seen in Figure 1 which corresponds to an extreme position of adjustment in the Y direction, the stiffener can be mounted at a very short distance from the slab nose 3, which was one of the goals

covered by the present invention.

  The embodiment according to FIG. 3 differs from that of FIGS. 1 and 2 in that the connecting profiled piece 4 has in its wings 4 a and 4 b, not a

  pair of aligned holes allowing the passage of a single bolt

  than 5, but two pairs of such aligned holes 21 a, 21 b and

  22 a, 22 b, the holes of each wing being arranged one to-

  The pair of aligned holes 21a, 21b allows the passage of a horizontal bolt 23, and the other pair 22a, 22b is crossed by a pair of aligned holes 21a, 21b. other horizontal bolt 24 The upper bolt 23 serves to lock in the profiled part 4 an upper stiffener 1 ', while the lower bolt 24 clamps in the same profiled part 4 a lower stiffener 1 "Finally, the holes that are formed in the stiffeners 1 'and 1 "for the passage of the bolts 23 and 24 can be elongated in the vertical direction Z, as seen on the lower stiffener 1"

  of Figure 3 for the holes 25, in order to absorb the dilat-

thermal origin.

  It goes without saying that without departing from the framework of

  In this invention, various modifications could be made to the embodiments which have just been described. Thus, the heads 9a and 9b of the bolts 1a and 1b of FIG. 1 could be, not square, but polygonal. , and for example rectangular, or they could even have a cylindrical shape provided with flats

  diametrically opposed, or any other form

  the threaded part of the bolt concerned to turn around

its axis.

  On the other hand, the T-shaped groove that each wing of the profiled connecting piece 4 has could be formed, not in a lateral extension of the latter, but in its proper wing which would then have a face

  If the result would be an increase in

  the amount of material needed, the profiled part would be reinforced, which could be

in some cases.

  Moreover, the fact that part 4 is qualified as "profiled" does not necessarily imply that it is manufactured by extrusion, and, on the contrary, it could also

  well be a molded piece or machined in another way.

  Note also that if the fixing system of the invention has been described as being symmetrical with respect to the plane P, it would nevertheless be possible to deviate from this

  symmetry in certain particular circumstances, by giving

  for example different lengths at the brackets 15a

  and 15 b Similarly, it is not necessary for both

  15 a and 15 b are fixed at the same level on the

  4, and their wings 18a and 18b may be located in a different plane, for example if the slab nose 3 to which they are attached has a step or a recess at this point.

in law -

1 l

Claims (11)

CLAIMS -   1 System for fixing a wall stiffener   curtain on a building element, characterized in that it comprises a connecting piece (4) which can be   made integral with said stiffener (1; 1 ', 1 ") and which com-   laterally takes at least one T-shaped groove (7a, 8a; 7b, 8b) in cross-section, which is vertical in the mounting position and open outwardly; at least one square (15 a, 15 b) of which each wing (14 a, 18 a; 14 b, 18 b)   has an elongated hole (13a, 20a, 13b, 20b) perpendicularly   at its edge; at least one first bolt (10a, 1bb) whose head (9a, 9b) is housed with a small clearance in said   T-shaped groove (7a, 8a, 7b, 8b) and which is sensitive to   prevented from rotating about its axis, while its threaded portion (12a, 12b) passes through the elongated hole (13a, 13b) which is formed in one (14a, 14b) of said wings of said square (15 a, - 15 b), and that its nut (16 a, 16 b) is clamped on the face thereof which is opposite to said connecting piece (4); and at least one second bolt (19a, 19b) which secures the other flange (18a, 18b) of said bracket (15a, 15b) on said construction member (3) through the elongated hole (20 a, 20 b) which is formed in this other wing (18 a,   18 b) of said bracket (15 a, 15 b).   2 System according to claim 1, characterized in that it is symmetrical with respect to the vertical plane   median (P) of said stiffener (1; 1 ', 1 ").   3 System according to any one of claims 1   and 2, characterized in that said connecting piece (4) is a profiled piece which has the shape of a U at right angles in cross section and which closely matches the   outer contours of said stiffener (1; 1 ', 1 ").   4 System according to claim 3, characterized in that said stiffener (1; 1 ', 1 ") is secured to said connecting piece (4) by means of at least one bolt transverse (5; 23, 24). > 12   System according to any one of claims 1   to 4, characterized in that said connecting piece (4) extends outwardly in one piece by a vertical rib (6a, 6b) which extends over its entire height and in which is arranged said T-shaped groove (7a, 8a; 7b, 8b).   System according to any one of claims 1   at 5, characterized in that the surfaces of said piece   link (4) and said bracket (15 a, 15 b) which are   designed to be clamped against each other by said first   bolts (10 a, lob) are each provided with a vertical notch cal (17a, 17b).   System according to any one of claims 1   at 6, characterized in that said first bolt (10 a,   l Ob) is a square bolt.   System according to any one of claims 1   at 7, characterized in that said T-shaped groove   (7a, 8a, 7b, 8b) is provided with at least one of its   of a stop (11a, 11b) which is intended to stop the   head (9a, 9b) of said first bolt (1 Oa, 1bb).   System according to any one of claims 1   to 8, characterized in that an upper stiffener (1 ')   and a lower stiffener (1 ") are both made   daires of the same connecting piece (4).   10 system according to claim 9, characterized in that at least one of said stiffeners (1 ', 1 ") is secured to said connecting piece (4) by means of a   transverse bolt (23, 24), the latter traversing the stiffening   corresponding line (1 ', 1 ") through holes (25) which   are lying in the vertical direction.