FR2694590A1 - Device for fixing wall facing plates. - Google Patents

Abstract

The device comprises a dowel (4) which, by one of its ends (11), is anchored in a hole (12) drilled in the wall and which, by its other end (9), clamps a plate (1) towards the wall. wall, with the interposition of a layer of insulation 3. It further comprises a strut (5) which (14) rests in the wall (2), extends through the facing plate (1) and is inclined on the peg (4) which clamps the facing plate (1) through it. The invention applies well to the renovation of facades.

Description

1 - Device for fixing plates to a wall

  The invention relates to a fastening device, with a vertical support wall, a facing plate, or a facade, spaced from the wall, comprising an anchor which, at one of its ends, is anchored in a hole drilled in the wall and which , by his other

  end, squeeze the plate toward the wall.

  Such devices are used, especially in the context of the renovation of facades, to maintain facing plates poorly attached to a wall, spaced from it by a layer of insulation, and which tend to detach from the wall. distance between the outer surface of the facing plates and the bottom of the anchor holes is

so relatively large.

  We use either pins for which the range is too large and may cause their flexion,

  either ankles too big.

  The present invention proposes to provide a solution

elegant to this problem.

  To this end, the present invention relates to a device of the type mentioned above, characterized in that it comprises a strut which bears in the wall, extends through the facing plate and is inclined on the ankle that squeezes the

  facing plate through it.

  The strut being inclined on the ankle, the clamping force is decomposed into a force parallel to the leg, which can only accentuate its support in the wall, and especially in a force perpendicular to the leg -2 and pointing towards the up to constrain the plate towards

  the top, which was the goal.

  Preferably, the strut is inclined at 45 degrees on the vertical. In this case, the weight of the facing plate breaks down into a force parallel to the leg and an ankle pulling force equal to the weight of the plate

  and therefore independent of the length of the ankle.

  In a preferred embodiment of the

  the invention, the ankle is an ankle for counter

  strut, comprising a rod, with a clamping end and an expansion end, an expandable anchoring ring in the undercut and a spacer tube, around the rod, for causing expansion of the ring around the 'end

expansion of the stem.

  Advantageously, the strut is secured to a vertical clamping plate with which the clamping end of the pin of the dowel cooperates, preferably without acting on the expansion tube of the

ankle.

  In the latter case, the play, which could originally exist between the deforce leg and the hole, in the face plate, through which the strut extends, is canceled in the direction of the force. of

  lifting the facing plate exerted by the ankle.

  Advantageously, the strut is pierced with a passage hole of the clamping pin which

  can play a role of ankle pose template.

  The invention will be better understood by means of the

  following description of the preferred embodiment

  of the device of the invention, with reference to FIG.

  unique in the appendix which represents it in section.

  The device that will be described serves to maintain a facing plate, or facade, 1 at a fixed distance from a supporting wall 2, here, between the wall and the plate, an insulating layer 3 The holding device, or fixing, includes an ankle 4, here for hole to

  undercut, and one leg 5.

  The anchor 4, which is otherwise known, comprises a traction and fixing rod 6, an expansion and anchoring ring 7 and a tube 8 for expanding the ring. The rod 6 comprises a clamping end 9, male type, in this case threaded and intended to cooperate with a clamping nut 10, and another end 11, of frustoconical shape flared outwardly to cause, with the tube 8, the expansion of the ring 7 The ring 7 consists of a plurality of elements with expandable tab which deviate from each other under the combined action of the conical end 11 of the rod 6 and tube 8 moving them, itself under the action a striking tool, in the direction of flaring

from the end 11.

  For the anchoring of the ankle 4, and a hole 12 against

  formerly drilled in the wall 2, the pin is inserted into the hole 12 until the end of the rod comes into abutment against the bottom of the hole Then, with the aid of a tool strikes, the tube 8 is pressed around the rod 6, to drive the expandable elements of the ring 7 along the end 11 and spread them until they come to marry the wall of the hole 12 against the clearance For -4 -

  further details, see for example FR-A-

2,638,794 -

  The strut 5 here comprises a large tube 13, with a bearing end 14 open and a clamping end 15 closed by a clamping plate 16, here welded to the tube 13 and inclined at 45 degrees on the axis 17 of the tube 13 The length of the tube 13 is such that, when the plate 16 is flush with the outer surface 18 of the facing plate 1, the bearing end 14 can be driven into the wall 2 The tube 13 is pierced with a hole elliptical 20 passage of the pin 4, here of small axis substantially equal to the diameter of the tube 8 and major axis substantially equal to this diameter multiplied by 5 The plate 16 is also pierced with an orifice 23 for the passage of the pin 4 La laying of the device

can now be absorbed.

  Since the hole 12 has been drilled in the wall 2, with a horizontal axis 19, a hole 21 of diameter approximately corresponding to that of the tube 13 and of axis 17 inclined here at 45 degrees to the hole 13 is drilled in the facing plate 1. axis 19 In the extension of the hole 21, is drilled in the wall 2 an annular trench 22, substantially the same inside and outside diameters as those of the tube 13, to receive its open end 14, and depth determined for the plate 16 is flush the outer surface of the facing plate 1 is then introduced the tube 13 of the strut 5, by its support end 4, through the plate 1 and the insulating layer 3 into the trench 22 of the wall 2 On the bottom of which it comes into abutment, the pin 4 is then passed through the orifices 23, the plate 16, and 20 of the tube 13, serving as a laying template, and it is anchored in the hole 12 of the wall 2 its clamping end 9 protruding out of the clamping plate 1 6 of the strut 5 is then passed around the tube 8 of the pin 4, spacer rings 24, in sufficient number, here two, so that, in abutment against the plate 16, the sum of their thickness is greater than the length of the tube portion 8 projecting out of the plate 16 With this, the attachment of the strut will not cause action on the expansion tube and therefore will not act on the anchoring of the ankle We pass after a last clamping washer 25 around the rod 6 projecting from the washers 24, which is pushed against the washers 24 and screw the nut 10 on the end 9 of the rod 8 of the ankle 4 which presses the washer 25 against the washers 24 and the plate 16 and finally forces the plate 16 towards the anchoring end of

ankle.

  Through the plate 16, the pin 4 constrains the leg 5, and therefore the facing plate 1, upwards, while ensuring a proper spacing

between plate 1 and wall 2.

-6-

Claims (7)

  1 Fixing device, to a vertical support wall (2), a facing plate (1), spaced from the wall, comprising an anchor (4) which, at one of its ends (11), is anchored in a hole (12) drilled in the wall and which, by its other end (9), clamps the plate (1) to the wall, characterized in that it comprises a strut (5) which (14) is supported in the wall (2) extends through the facing plate (1) and is inclined to the peg (4) which clamps the facing plate (1) by his intermediary.   2 Device according to claim 1, wherein the strut (5) is inclined at 45 degrees on the vertical.   3 Device according to one of claims 1 and 2,   wherein the peg (4) is an undercut peg, comprising a pin (6), with a clamping end (9) and an expansion end (11), an expandable ring (7) for anchoring in the undercut (12) and a spacer tube (8) around the shank (6) to cause expansion of the ring (7) around the expansion end (11) of the rod (6).   4 Device according to one of claims 1 and 3,   in which the strut (5) is secured to a vertical clamping plate (16) with which the clamping end (9) of the rod (6) cooperates with the ankle (4).   5 Device according to claim 4, wherein the cooperation of the clamping end (9) of the rod -7 - (6) of the dowel (4) and the clamping plate (16) of the strut ( 51 is done by   via spacer washers (24).   6 Device according to claim 5, wherein the cooperation of the clamping end (9) of the rod (6) of the peg (4) and the clamping plate (16) of the strut (5) s effected by means of a clamping washer (25) in   support against spacer washers (24).   7 Device according to one of claims 1 to 6, in   wherein the strut (5, 13) is pierced with a hole (20) for the passage of the clamping pin (4), act as a template for fitting the peg (4).