FR2812320A1 - METAL HANGER FOR THE DESIGN OF ARCS OR VOUTS IN THE BUILDING INDUSTRY - Google Patents

Abstract

The present invention relates to a metal hanger comprising a pallet 1 made of a metal sheet in an arc of a circle connected to a chassis. The hanger according to the invention is essentially characterized in that, starting from a predetermined length value, its length is of variable and adjustable palletizing.

Description

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  METAL HANGER FOR MAKING ARCS OR ARCHES

IN THE BUILDING INDUSTRY.

  The present invention relates to a metal hanger for the production of arches or vaults in the building industry. The hangers for this use are generally made of wood and have a floor or pallet in an arc conforming to the shape of the lower surface of the arc or

  of the vault to be made which is supported by a frame of beams and trusses.

  These wooden hangers are invariable in size and therefore suitable for a

o0 only type of arch or vault.

  In the case of arches or vaults with a different bending arc, it is

  necessary to use other hangers.

  In fact, it appears that these wooden hangers are practically produced on demand depending on the site and that they are of reduced reuse as far as they are subject to deterioration, in particular disassembly and

  deformations for example due to humidity.

  The present invention proposes to remedy the drawbacks mentioned below.

  above by the design of a hanger as defined in a material which is not sensitive to humidity, which can be metal or synthetic materials and / or a combination of different materials of this type and which is adaptable in size from a given basic dimension, so as to be reusable to obtain arcs or arches with different lengths, which makes them

  versatile and reusable.

  To this end, the hanger according to the invention comprising a primary pallet consisting of a wall in an arc supported by a chassis is essentially characterized in that the curved pallet and its chassis have a length

  variable from a predetermined basic value.

  According to another characteristic of the invention, the curved pallet is carried by a chassis with longitudinal lower uprights extendable from

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  of a given length and with vertical lateral uprights, at each end of the longitudinal uprights, which are also extensible from a given height. According to yet another characteristic of the invention, under the primary pallet is articulated transversely to two extensible parallel vertical uprights, at least one pallet extension which is extracted from the pallet

  primary by extension of the longitudinal uprights of the chassis.

  According to yet another characteristic of the invention, under the primary pallet, a pallet extension is articulated to each of the two vertical uprights of each of the ends of the chassis, the two extensions being extracted by extension of the parallel longitudinal uprights of the chassis to

each of their ends.

  Other advantages and characteristics of the invention will become apparent on

  reading of the description below of an embodiment of the invention

  given by way of nonlimiting example and illustrated by the accompanying drawings in which: - Figure 1 is a view of a hanger according to the invention without its extensions; - Figure 2 is a sectional view of the hanger according to Figure 1; - Figures 3 and 4 are views of the extensions with adjustment in the high position (fig. 3) and low (fig. 4); - Figure 5 is a sectional view of the hanger with extensions in the closed position; - Figure 6 is a view of the hanger in the extended position; - Figure 7 is a perspective view of a formwork adaptable to the hanger according to the invention;

  - Figures 8 and 9 show the formwork according to Figure 7 adapted to the hanger.

  As shown in the accompanying drawings, the hanger according to the invention (Figures 1 and 2) has a floor or pallet 1 in an arc of a value

  corresponding to the hanger or lower surface to be produced.

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  The pallet 1 is connected by vertical sides 2 parallel forming a self-supporting shell.

carrier at a horizontal bottom 3.

  On the bottom 3 are arranged two parallel square tubes, one on each wall forming the sides; the bottom and the longitudinal and horizontal uprights of the chassis as well as the tubes 4 constitute with the pallet 1 the first

  chassis elements supporting the pallet 1 said primary pallet.

  In Figures 3, 4 and 5 is shown all of the essential components

of the hanger according to the invention.

  o In FIG. 3 is shown a pallet extension 5 made up of a wall which can be bent in a curved arc, one end 6 of which is free and the other end 7 of which is connected by a hinge 8 to two vertical parallel posts 9, which are fixed at the end of two parallel uprights

horizontal 10.

  1s The vertical uprights 9 and horizontal 10 consist of square tubes.

  The horizontal uprights 10 engage and slide in the uprights 4

  horizontal parallels of the hanger frame.

  The amount 4 is provided with a series of holes on the same line intended to come opposite one another when the amounts 10 are extracted from the amounts 4 or vice versa when they are returned in the amounts 4. These holes allow adjustment by means of through pins not shown. The upright 9 consists of two vertical square tubular elements of which one 9A is welded to the end of the corresponding upright 10, the other 9B

  slides in the first and carries the hinge 8 of the pallet extension.

  The position of 9A in 9B is adjustable by holes with which they are provided, which

receive pins.

  This arrangement makes it possible to adjust the height of the upright 9 between a position

  low (Figure 4) and a high position (Figure 5).

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  At each end of the two tubes 4 correspond two uprights

  sliding 10 with their corresponding amounts 9.

  The amounts 10 and 9 are joined in any known manner for example by a

  spacer sheet joining two fixed vertical uprights 9A.

  At each end of the primary chassis of FIG. 1, there is a pallet extension system with two vertical uprights 9, sliding, and

two horizontal uprights 10.

  As shown in FIGS. 1 and 2, at each end of the primary chassis between the sidewalls 2 and at a short distance from the fixed pallet 1, a transverse welded log 11 which is arranged parallel to the hinge axis 8 of the

  extension 5 and at a level higher than this axis.

  The logs 11 serve both to support the extensions 5 and to slide them during extraction from below, the primary palletizing. This organization of the hanger according to the invention allows at will as shown in Figure 6 to increase the length of the hanger from a predetermined base length which is the length of the primary pallet as

shown in figure 1.

  It is important that the extension or extensions 5, during their extraction, remain in alignment with the arc of the primary hanger 1, that the height at the end of the extensions defined by the vertical uprights 9 is adjustable between a maximum height which corresponds to the position in which the extension is completely in the primary chassis, the height of the upright 9 being equal to the height of the sidewalls 2 at the end (FIG. 5) and a minimum height which is that

  of the complete extraction of the extensions as shown in Figure 6.

  For this purpose, the adjustment is carried out jointly on the length by

  lengthening thereof and over the height by reduction thereof.

  Otherwise, there will be misalignment of the surfaces of the arch of the hanger.

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  The hanger according to the invention and in particular the pallet is made of all suitable materials having the qualities of mechanical resistance required and

moisture resistance.

  Preferably, the hanger according to the invention is made of stainless metal or aluminum but it can also be made of all synthetic materials or

  in a combination of metal and synthetic materials.

  In Figures 7, 8 and 9 is shown a formwork element for the hanger according to the invention, said formwork element also forming part of

io the invention.

  This formwork element consists of a folded sheet, preferably of metal, for example aluminum in the shape of a "U" with an upper wall 12, two

  parallel sides 13 and a lower opening 14.

  As illustrated in Figures 8/9, the sides 13 of the formwork have a height

greater than the sides 2 of the hanger.

  The formwork fits on the hanger and is provided on its sides with horizontal lights 15 along a same line through which penetrate bolts

  horizontal transverse to the sides 2 of the hanger.

  Locking in position is obtained by fin screens 16.

  The upper wall 12 is provided with openings 16 which allows the casting of the

  concrete after placing the reinforcing elements.

  In the embodiment, the formwork is shown in one

length.

  However, in the context of the invention of the extendable hanger, said formwork is also designed in at least two sections, one sliding in the other in order to

  adjust the length to that of the hanger.

  The hangers according to the invention are of suitable dimensions, length, width and height and they can be coupled by their sides or

  formwork to achieve large arch or vault widths.

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Claims (10)

CLAIMS:   1. Hanger for the production of arches or arches in the building industry, said hanger comprising a primary pallet (1) consisting of a wall in the form of an arc of a circle supported by a chassis characterized in that the pallet (1) curved and its chassis have a variable length and height   from a predetermined value.   2. Hanger according to claim 1 characterized in that the curved pallet (1) io is carried by a frame comprising sides (2) and two parallel longitudinal lower uprights (4) extendable from the given base length, said frame comprising at each end said parallel extendable longitudinal uprights (4) parallel vertical uprights (9) extendable in height.   3. Hanger according to claim 2 characterized in that under the primary pallet (1) is articulated transversely to two vertical uprights (9) extendable a curved extension of pallet (5) which is extracted from under the primary pallet by extension of the longitudinal uprights horizontal (4) of frame.   4. Hanger according to claim 1 and any one of claims   previous characterized in that on each side of the primary pallet (1) and under it is articulated to the vertical uprights (9) an extension (5) of curved palletizing.   5. Hanger according to claim 1 and any one of claims   2, 3 and 4 characterized in that at each end of the horizontal and parallel longitudinal uprights (4) slides slidingly in an upright (10) of which   The end carries a vertical upright (9). 7 2812320   6. Hanger according to claim 5 characterized in that the uprights (10)   and (9) on the same side of the hanger are connected by a spacer.   7. Hanger according to claims 5 and 6 characterized in that the   vertical uprights (9) comprise a part (9A) fixed at the end of each   horizontal upright (10) and a sliding part (9B) adjustable in height.   8. A hanger according to claim 2 and any one of claims   previous characterized in that the fixed (4) and mobile (10) and (9A -   io (9B) are provided with means for adjusting their length and / or height.   9. Hanger according to claim 1 and any one of claims   previous characterized in that between the parallel flanks (2) of the frame is arranged a log (11) parallel to each of the articulations (8) of the extension (5) of palettage, said log being above the level of the articulation (8) and used to hold the extension (5) in the hanger and to slide it during its extraction.   10. Hanger according to claim 1 characterized in that it comprises a formwork with two parallel sides (13) and an upper wall (12) which fits on the hanger and is fixed thereto, said formwork comprising openings (16) in its upper wall and said formwork being extensible in   length to adapt to the chosen length of the hanger.