EP0862675B1 - Device for lifting a framework and any construction supported thereon - Google Patents

Abstract

PCT No. PCT/FR96/01770 Sec. 371 Date Feb. 18, 1997 Sec. 102(e) Date Feb. 18, 1997 PCT Filed Nov. 8, 1996 PCT Pub. No. WO97/19238 PCT Pub. Date May 29, 1997A device for lifting a framework (65) optionally together with a portion of a building resting on said framework (65), and in particular a roof, relative to underlying walls. The device (63) is designed to be used as one of a plurality of such devices distributed around the framework (65) and it includes a wall plate (1) suitable for being fixed to the wall (3) and connected to guides (64) for guiding a cursor (76) suitable for co-operating with the framework (65), and controlled thruster (108) for said cursor (76) by common connections (42) that ensure they are identically oriented. The device is particularly applicable to lifting two-slope or four-slope roofs, or floors, or bare frameworks, by suitable adaptations to the cursor (76).

Description

The present invention relates to a device for lifting of a frame and, if necessary, part of construction based on this framework, in particular a roof, relative to the underlying walls, intended to be used in multiple copies spread around the frame.

We already know lifting devices taking support either on the surrounding ground of the building including the roof is to be lifted, either on a floor or a floor of this building. We can for example refer to documents WO-A-94 11596 and FR-A-2 540 543 which describe lifting devices using jacks supported on a building floor whose roof is to be lifted.

These known devices are not designed to be able to be fixed to a wall surface, structure is extremely bulky and cost high manufacturing.

• des moyens d'appui, susceptibles d'être fixés à une surface sensiblement verticale, notamment extérieure, d'un mur,
• une console susceptible d'être placée sensiblement à la verticale des moyens d'appui, au-dessus de ceux-ci, et de coopérer avec un élément de la charpente pour le soutenir,
• des moyens de guidage de la console à la translation par rapport aux moyens d'appui, suivant une direction susceptible d'être orientée sensiblement verticalement,

   ceci dans une application au levage d'une toiture et dans un mode de réalisation dans lequel les moyens d'appui sont constitués par trois platines murales distinctes, fixées au mur indépendamment l'une de l'autre, à raison d'une platine basse servant d'appui à un vérin constituant des moyens commandés de poussée, et de platines respectivement haute et intermédiaire coopérant avec des chandelles portant la console pour constituer les moyens de guidage de celle-ci.Although not part of the state of the art within the meaning of Article 54 (2) and (3) EPC, the document FR-A-2 720 430, published on 1 December 1995 is mentioned insofar as it describes a lifting device of the aforementioned type, comprising:

• support means, capable of being fixed to a substantially vertical, in particular external, surface of a wall,
• a console capable of being placed substantially vertically above the support means, and of cooperating with an element of the frame to support it,
• means for guiding the console in translation relative to the support means, in a direction capable of being oriented substantially vertically,

this in an application for lifting a roof and in an embodiment in which the support means consist of three separate wall plates, fixed to the wall independently of one another, at the rate of a low plate serving as a support for a jack constituting controlled means of thrust, and respectively high and intermediate plates cooperating with candles carrying the console to constitute the means for guiding the latter.

This embodiment of a lifting device a roof has the drawback of being complex, expensive to manufacture, long and tedious to fix and adjust to the surface of a wall, long to dismantle after lifting the roof up to a chosen level and completed the wall up to the roof thus raised, and particularly harmful to the appearance of the wall since it is necessary to drill into it many holes to fix the different plates.

The closest state of the art is illustrated by document US-A-4 980 999 which describes a device for lifting supported on the surrounding ground, and constituted either lifting towers incorporating a winching system, either cylinders mounted on a support resting on the ground.

The lifting device described in this document includes all the features of the preamble to the claim 1.

The "support means" of this lifting device, constituted by the lower part of lifting towers in vertical support on the ground, are certainly in contact with the wall of the building and therefore likely to be attached to a substantially vertical surface, in particular external, of a wall: however, it is clear that the supporting forces are taken up by the ground and not by the vertical wall.

Because of its support on the ground, the said lifting is relatively bulky because it is supported over the entire part of the ground surrounding the building, the roof is to be lifted.

The object of the present invention is to remedy these drawbacks and, to this end, the present invention offers a device of the type indicated in the preamble, characterized in that the support means comprise a plate wall common to the guide means and to the controlled means thrust, and common means of connecting means guide and controlled means of thrust with the plate mural, ensuring an identical orientation.

Thanks to this design of the support means, using a single wall plate, the installation, the adjustment and removal of the device are carried out a lot more easily and much faster, and the device leaves less unsightly traces after removal, which means that the work of re-fitting the pre-existing wall is In addition, this device lends itself to a realization particularly simple and economical, which will stand out clearly from the following description for a Man of job.

Such a person skilled in the art will moreover easily understand that a device according to the invention can find its application in the lifting of any type of frame, possibly naked but most often wearing part of construction, which will usually consist of a roof as described in the aforementioned French patent application, but may also consist of another component of a construction, such as a floor, in which case the term "lifting" should be interpreted in a broad sense, implying not only an elevation movement but also a downward movement. Naturally, the choice of surface vertical of the walls on which the plates will be fixed of the various devices according to the invention will be carried out depending on the nature of the frame and the part of the construction it carries, an external surface being most often chosen in the case of a roof and an interior surface in the case of a floor.

When it comes to adjustment, we consider here essentially an adjustment such as the orientation of the means guide and controlled means of thrust is identical for all lifting devices of the same frame, this which is essential if we want to avoid consoles tend to move towards or away from each other as as it lifts, imposing constraints on the frame likely to destroy it, or that of some of the lifting devices.

Such an adjustment can be carried out exclusively by a positioning adjustment of the wall plate relative to to the wall that carries it, when it is fixed against it, but we prefer an embodiment of the device according to the invention according to which the connection means comprise means for adjusting said identical orientation.

For example, for this purpose, the connection means have a support plate for guiding means and controlled means of thrust in an orientation identical and means of articulation of the retaining plate relative to the wall plate, around an axis likely to be arranged substantially horizontally and substantially parallel to said surface, as well as, preferably, means for temporarily immobilizing the holding plate by compared to the wall plate, in a determined range of relative angular positions around said axis.

We can thus limit the positioning settings from the wall plate to the wall to a simple horizontal adjustment of the articulation axis of the platform hold in relation to this wall plate, what we can perform in a particularly simple way by doing slightly turn it on itself against the surface of the wall, using any appropriate means of monitoring leveling, such as a spirit level or a range finder before attaching it firmly to the wall.

This adjustment can be facilitated if, according to a variant implementation of the present invention, no do not fix the wall plate directly to the wall but we plan that the support means comprise an intermediate template of fixing the wall plate to the wall surface, susceptible to be attached to said surface and to receive removable the wall plate in a relative position determined. It may indeed be easier to position rigorously then attach to the wall, keeping the setting rigorous obtained, such a template which can be lighter and easier to handle than the wall plate, before placing it on this template. In addition, such a template, suitably dimensioned, allows to fix a wall plate opposite of an area of a wall which, in itself, does not present a sufficient mechanical strength to allow attachment direct, by authorizing a postponement of fixings to areas more resistant to the wall, such as high and low chains or posts, if, according to a preferred embodiment, the template is likely to be attached to the surface of the wall at minus a location offset from the wall plate occupying said determined relative position.

We can possibly foresee that the different devices according to the invention, distributed around a frame to lift it and, with it, a construction part resting on it, namely by example a roof or a floor, are actuated individually, in which case they can be of a free type chosen but require an abundant workforce to control their operation, the synchronism of this operation remaining doubtful, however, at the risk of causing deterioration of the frame.

We therefore prefer to choose the means thrust controlled in a group comprising the jacks electromechanical cylinders, and associate them to remote control means common to other devices lifting, preferably all devices used to lift the frame, in order to synchronize a set of lifting devices, from a point of single order. Here we mean by "remote control means" both means associated with a single source of fluid pressurized hydraulics or electricity, respectively, connected respectively by a bundle of hydraulic lines or electric cables to the different cylinders, only radio control means acting on autonomous cylinders as for the supply of hydraulic fluid or electricity, respectively.

Whatever their conception, the means push commands can be used to lift the frame in a single operation on the entire desired height, and then be used to maintain the frame at the level reached during all the time necessary at the height of the wall up to this level.

However, this requires space cylinders important and, if you want them to maintain the frame during all the time necessary for the elevation of the wall, involves a significant expenditure in energy, on the one hand, and a long-term immobilization of the jacks, when they could be used on other sites, on the other hand.

We therefore prefer an embodiment according to which the controlled means of thrust are independently removable guide means which can thus be left in place to perform their function after a certain run lifting of the frame, when the desired level is reached, to allow to permanently dismantle the means commanded to push and assign them to another job site.

To this end, too, provision is made for the device according to the invention comprises means, independent of thrust means, for the temporary immobilization of the console at least one level of lift determined from to the common means of connection.

These means of temporary immobilization of the console can come in different forms, in depending on the design of the guide means.

So in one embodiment where these the latter have at least one guide rod arranged following said direction and guided to the following translation this in relation to the common means of connection and the console is integral with said guide rod, in number at least one, the means of temporary immobilization of the console advantageously include immobilization means provisional of the guide rod, at least in number one, against a translation in said direction compared to the common means of connection. We can by example provide for this purpose a keying by means of holes distributed along the guide rod and provided holes in the connection means for example constituted by the aforementioned holding plate or in the wall plate, this which, at the same time, produces a temporary immobilization particularly effective, simple to carry out then to undo, and requires few additional organs, in practice a single pin engaged in suitably selected holes guide rods and, simultaneously, in the holes of the connection means or wall plate.

According to another embodiment, according to which the guide means comprise at least one guide rod arranged in said direction and immobilized against of a translation according to this with respect to the means common connection, the console then being mounted in translation in said direction on the guide rod, at least one, the means of immobilization the console may advantageously include means of temporarily immobilizing it against of a translation in said direction relative to the guide rod, at least one in number. A man of profession will easily understand that this temporary immobilization can also be done for example by keying, by means of holes distributed along the guide rod and holes provided in the console, in conditions of simplicity and efficiency analogous to those that have been previously described. Naturally, in such a case, we may have to pass through the guide rods the construction part resting on the frame, in particular a roof, but this only requires the installation of some localized passages easy to close again, know, in the example of a roof, the dismantling of some roofing elements such as tiles or slates, easy to replace afterwards.

When, according to the embodiment described in last, at least one guide rod is fixed in translation relative to the common connection means, provision may be made for the guide rod to bear integrally, opposite common means of connection by compared to the console and at a distance common means of connection compatible with a predetermined maximum stroke for lifting the roof, a connection box with tie rods for connection to the connection box of at least one other lifting device. This arrangement allows connect all or part of the guide rods together devices according to the invention, distributed around a framework to be lifted and, in particular, to constitute by means a static belt connecting each other guide rods of all these devices, above the frame and the construction part which it carries, and creating with these guide rods and with the walls, by through the wall plates, a rigid set of perfectly determined geometry, in which the rods of guide remain well parallel to each other to avoid any application of tensile or compressive stress to the frame as the consoles go up along guide rods, and thus avoid any deformation, or any damage to the frame and the part of construction it carries.

The constitution of such a static belt is particularly effective in the case of four-roofs sides, where it is easy to arrange all tie rods horizontally to make it a rectangular frame, being understood that it can also be used in the case of other roof conformations.

Regardless of the embodiment of the means of guidance, it can also be provided that the console includes mechanical connection means with the console of at least one other lifting device, for example in the form of at at least one cantilever arm, perpendicular to said orientation and likely to be placed in the extension the arm of the console of another lifting device, in a substantially horizontal alignment and substantially parallel to said surface, and rigidly connected to this other arm by a rectilinear beam disposed along said substantially horizontal alignment. A skilled person will easily understand that the rectilinear beam thus connecting the brackets of two lifting devices according to the invention, in practice two neighboring consoles, can take support under the frame in the same way as the consoles themselves, know between them, which allows to distribute the supports of the frame and therefore to avoid deformations of it between supports. To avoid having recourse to this indeed, to shims to make up for any differences level between the consoles, it is advantageously expected that any console includes means for adjusting the level of said arm, at least one in number, in said direction.

It is understood that, preferably, each console can have two of these arms, respectively on either side of the guide means, which allows have this continuity of support on a part also as large as possible from the perimeter of the walls.

In the case of two-slope roofs, you can get this support distribution at the bottom of each of the two slopes. However, it can be completed on along gable walls and, where applicable, cross walls by providing that a console can carry, if necessary, more than one arm thus authorizing a connection between the device consoles according to the invention arranged at the bottom a roof pitch, a connection device with a farm, in particular adjustable, capable of being brought under the frame along a gable wall or a cross wall and to be connected, by a similar connecting device, to the console of at least one other lifting device, which allows to form a support belt on the entire perimeter of the roof, this belt being dynamic in this sense that it goes up with the consoles to maintain a support distribute the frame whatever the lifting level of the roof. Preferably, the console includes means for adjustment of the level of this connecting device according to said direction and / or orientation adjustment means of this connecting device around an axis oriented along this direction.

In the case of a four-pitched roof or a roof of complex shape, providing that the console further includes means for adjusting the orientation of said arms, at least one in number, around an oriented axis following said direction, and providing two arms as well likely to be placed at 90 ° to each other, in particular, one can also form such a belt dynamic support on the entire perimeter of the roof.

In the case of a floor, you can choose one or the other solution depending on whether, respectively, the frame rests on only two load-bearing walls or rests on four load-bearing walls.

In all cases, it is understood that we limit installation of devices according to the invention on walls load-bearing, whether external walls or walls of split.

Preferably, to facilitate the establishment of this distributed support of the frame, it is expected that the console includes means of adaptation to the conformation of the structural element that it must carry, these means of adaptation being advantageously suitable for allowing the use of a lifting device according to the invention not only at the bottom of the slopes of a roof or under a floor but also on gable walls, in the case of roofs with two slopes, or on cross walls.

In all cases, the support of the consoles, arms cantilevered from these, parts connecting mutual < these arms, and the aforementioned means of adaptation, under the frame, can be direct if the conformation of the frame lends itself to it, just as it can be indirect and take place through rigid beams running along, in the example of roofs whatever they are, breakdowns sand pits and, in the case of two-slope roofs, the crossbowmen. In addition, this support can be carried out by through a cushion of an elastically material compressible such as natural or synthetic rubber, it providing flexibility to compensate for tolerances in the geometry of the frame, in the positioning of the lifting devices and their synchronization.

In addition, if no level adjustment, i.e. no fine correction of the horizontality of the axis of tilting of the holding plate, is not provided for this lifting device, it is necessary to provide a very precise hanging of the wall plate, checking that the upper edge of it is perfectly horizontal, this which is not always possible in practice. In this indeed, the invention also relates to an embodiment more elaborate, in which the lifting device is arranged to allow level adjustment, while simplifying the general structure of the device, in order to reduce its weight and the manufacturing cost.

An advantageous embodiment is thus provided. of the aforementioned lifting device, according to which said lifting device further comprises adjustment means plumb according to the aforementioned identical orientation of the means of guidance and controlled means of thrust, and means of level adjustment, said plumb adjustment and level linking support means to common means of connection.

These level adjustment means allow thus very precise positioning of the guide means and thrust of each lifting device, ensuring perfect verticality of these means, so that the lifting proper can be achieved with total reliability by the simultaneous use of all the lifting.

Preferably, the support means comprise a intermediate support plate mounted to slide in a substantially vertical direction in an integral slide of the wall plate, said intermediate plate having means for fixing the plumb adjustment and level. Sliding mounting of the intermediate plate in particular allows precise initial adjustment of the base height of the support means, and the intermediate plate support made independent of the wall plate also simplifies the assembly and disassembly of the device.

Advantageously then, the intermediate plate support is suspended by a threaded rod from a cross the wall plate, so as to allow fine adjustment of height for said intermediate support plate, and the wall plate has a bracket above allow direct support of said wall plate on a wall chain.

More preferably, the fixing means are arranged to allow pivoting of the adjustment means around an axis capable of being arranged horizontally and parallel to the wall surface.

It is also interesting that the common means connection include a holding plate on which the guide means and the controlled means are supported thrust, and that this holding plate is crossed by the plumb and level adjustment means, presenting in particular of the associated oblong passage openings authorizing the angular deflections corresponding to the plumb and level settings.

In accordance with a particular embodiment, the plumb and level adjustment means have an axis threaded on which an adjustment sleeve is screwed.

Advantageously then, the threaded axis of the means of plumb adjustment is integral with a cylindrical head received in a hollow profile forming the associated fixing means of the intermediate support plate, and the threaded axis of level adjustment means is integral with a hinge head articulated connection to the intermediate plate of support by a tenon which crosses squares forming the associated fixing means of said intermediate plate support.

Preferably finally, each adjustment sheath has an end head passing through the openings aforementioned oblongs and forming an operating member for make the corresponding settings.

• La figure 1 montre, en une vue en perspective, l'ensemble formé par une platine murale, fixée en position d'utilisation sur un mur, et un plateau de maintien monté sur cette platine murale, également en position d'utilisation.
• Les figures 2 et 3 montrent, en des vues en perspective, respectivement la platine murale et le plateau de maintien également dans leur position d'utilisation.
• La figure 4 montre, en une vue en perspective, l'utilisation de dispositifs selon l'invention pour effectuer le levage d'une toiture à deux pentes, dont seule la charpente correspondant à une pente a été illustrée, et ceci en position basse, c'est-à-dire avant levage ; cette figure ne montre que deux dispositifs selon l'invention, mais il est bien entendu que de tels dispositifs sont répartis en un nombre supérieur d'exemplaires tout autour de la toiture à lever.
• La figure 5 montre un détail de la figure 4.
• La figure 6 montre le même détail sous une orientation différente.
• La figure 7 illustre, en une vue analogue à celle de la figure 4, l'étape finale du levage de la toiture, occupant ainsi une position haute.
• La figure 8 illustre, en une vue en perspective, l'utilisation de dispositifs selon l'invention pour le levage d'une toiture à quatre pentes, dont seule la charpente a été illustrée.
• La figure 9 montre un détail de la figure 8.
• La figure 10 illustre un mode particulier de réalisation d'une console de levage, adaptable à diverses configurations de charpente.
• La figure 11 montre, en une vue en perspective, un autre mode d'utilisation de dispositifs selon l'invention pour effectuer le levage d'une toiture à quatre pentes ; seuls deux de ces dispositifs ont été illustrés, mais d'autres sont répartis autour de la toiture, dans les mêmes conditions que dans le cas du mode d'utilisation illustré à la figure 8.
• La figure 12 montre, en une vue en perspective, un accessoire intermédiaire de fixation de la platine murale sur un mur, utilisable facultativement.
• Les figures 13 à 15 montrent, en des vues en perspective correspondant à des détails de la figure 4 ou de la figure 7, des dispositifs de liaison entre une console d'un dispositif selon l'invention et une ferme, notamment réglable, rapportée sous la charpente au niveau d'un mur pignon dans le cas d'une toiture à deux pentes, de façon illustrée, ou d'un mur de refend d'une toiture à deux ou quatre pentes , de façon non illustrée mais similaire.
• Les figures 16 et 17 montrent, en des vues en perspective, deux modes de liaison entre un entrait et un arbalétrier de ladite ferme rapportée, et une panne intermédiaire de la charpente.
• La figure 18 illustre en vue frontale une variante du dispositif de levage selon laquelle il est notamment prévu des moyens de réglage de niveau, les colonnes de guidage étant ici coupées pour mieux distinguer la structure de la platine murale, et la console de levage coulissant sur ces deux tiges n'étant illustrée que schématiquement en contact avec le bord inférieur (symbolisé en traits mixtes) de la charpente à lever.
• La figure 19 est une coupe selon XIX-XIX de la figure 18, permettant de mieux distinguer l'agencement des moyens de réglage d'aplomb et de maintien.
• La figure 20 est une coupe selon XX-XX de la figure 19, illustrant notamment de façon schématique deux types d'agencements possibles de vérins constituant les moyens commandés de poussée.
• La figure 21 est une vue en perspective éclatée permettant de mieux distinguer les composants du dispositif de levage des figures 18 à 20.

Other characteristics and advantages of the invention will appear more clearly in the light of the description which follows and of the appended drawings, relating to particular embodiments, with reference to the figures in which:

• Figure 1 shows, in a perspective view, the assembly formed by a wall plate, fixed in the position of use on a wall, and a retaining plate mounted on this wall plate, also in the position of use.
• Figures 2 and 3 show, in perspective views, respectively the wall plate and the holding plate also in their position of use.
• FIG. 4 shows, in a perspective view, the use of devices according to the invention for lifting a roof with two slopes, of which only the frame corresponding to a slope has been illustrated, and this in the low position, that is to say before lifting; this figure shows only two devices according to the invention, but it is understood that such devices are distributed in a greater number of copies all around the roof to be lifted.
• Figure 5 shows a detail of Figure 4.
• Figure 6 shows the same detail in a different orientation.
• Figure 7 illustrates, in a view similar to that of Figure 4, the final step of lifting the roof, thus occupying a high position.
• FIG. 8 illustrates, in a perspective view, the use of devices according to the invention for lifting a roof with four slopes, of which only the framework has been illustrated.
• Figure 9 shows a detail of Figure 8.
• FIG. 10 illustrates a particular embodiment of a lifting console, adaptable to various frame configurations.
• FIG. 11 shows, in a perspective view, another mode of use of devices according to the invention for carrying out the lifting of a roof with four slopes; only two of these devices have been illustrated, but others are distributed around the roof, under the same conditions as in the case of the mode of use illustrated in FIG. 8.
• Figure 12 shows, in a perspective view, an intermediate accessory for fixing the wall plate on a wall, optionally usable.
• Figures 13 to 15 show, in perspective views corresponding to details of Figure 4 or Figure 7, connecting devices between a console of a device according to the invention and a farm, including adjustable, reported under the frame at the level of a gable wall in the case of a roof with two slopes, in an illustrated manner, or of a cross wall of a roof with two or four slopes, in a manner not illustrated but similar.
• Figures 16 and 17 show, in perspective views, two modes of connection between a beam and a crossbowman of said attached farm, and an intermediate failure of the frame.
• FIG. 18 illustrates in front view a variant of the lifting device according to which level adjustment means are in particular provided, the guide columns being here cut to better distinguish the structure of the wall plate, and the lifting console sliding on these two rods being illustrated only schematically in contact with the lower edge (symbolized in phantom) of the frame to be lifted.
• Figure 19 is a section along XIX-XIX of Figure 18, to better distinguish the arrangement of the plumb adjustment and holding means.
• Figure 20 is a section along XX-XX of Figure 19, illustrating in particular schematically two types of possible arrangements of cylinders constituting the controlled means of thrust.
• FIG. 21 is an exploded perspective view making it possible to better distinguish the components of the lifting device of FIGS. 18 to 20.

For reasons of convenience, the different components of a device according to the invention will be described with reference to the position they occupy, within the limit of allowable tolerances, when in use for lifting a roof, where by roofing not only roofing elements but also the frame that carries them. It is understood that the present invention also applies to the lifting of other parts of a structure with a framework, for example example to floors, with relevant adaptations normal skills of a skilled person.

In all the applications illustrated, the devices according to the invention denoted 63, used in all number required to distribute the lifting efforts as well as possible, advantageously comprise an identical wall plate 1 and an identical holding plate 42, which will be described in first place with reference to Figures 1 to 3.

In its illustrated embodiment, the plate wall 1 has a vertical plate 2 for fixing to the wall 3, this plate 2 being delimited by two flat faces 4, 5, mutually parallel and vertical, the first of which is attached to an approximately vertical surface 112, notably but not exclusively an exterior face of the wall 3. These two faces 4, 5 are for example square, and connected mutually by a song 6 presenting two zones vertical, or vertical edges of plate 2, and two areas horizontal, or horizontal edges of plate 2, usable advantageously to adjust the orientation and level of the wall plate 1 when it is fixed to the wall 3, such so that the horizontal edges, respectively upper and lower, plates 2 for fixing the plates 1 corresponding to all of the devices according to the invention distributed around a roof are respectively arranged along the same horizontal plane. Fixing the plate 2 to wall 3 is removable and for example provided by screwing through holes 7 passing right through it, perpendicularly at its faces 4 and 5, and arranged for example at four corners of the plate 2.

In general, side 5 applies in its entirety on the surface 112 and is thus fixed there, but in the case of a device 63 implanted near an angle coming out of wall 3, it may not apply and be fixed on the surface 112 only over part of its extent, and apply and also be fixed on an angle 113 extending this and itself fixed to the wall 3, as illustrated in Figures 4, 5, 7.

Instead of being fixed directly to the wall 3 by screwing through the holes 7, especially when the area of the wall 3 to which plate 2 is attached does not have a sufficient mechanical strength for this purpose, plate 2 can also be fixed to wall 3 via a accessory or fixing template 115, illustrated in the figure 12 which distributes the load on the wall plate 1 and, through it, the entire device 63 and the corresponding part of the roof to be lifted, on more mechanically resistant areas, especially on the high chain and, according to a variant, the low chain of the wall, or on poles of it.

Figure 12 illustrates two alternative embodiments of the fixing template 115, one of which is shown in solid line and the other has, compared to the first, complements illustrated in dashed line, the gauge 115 being in both cases produced under the form of a rigid flat mesh, for example metallic or composite material, in particular defining a flat face 208 by which the template 115 is attached flat to the surface 112 from wall 3, in a determined position of use in which it is removably attached to it and in which the template 115 will now be described.

In the variant illustrated in line full, intended to suspend the wall plate 1, and with it the entire device 63, in the chain top not shown of the wall 3, the template 115 comprises two rectilinear uprights 116, mutually parallel, vertical and respectively attached to the surface 112 of the wall 3 if one refers to the predetermined position of use of the template 115.

With reference to this predetermined position, the two uprights 116 have an upper end section 117 respective placed at a level higher than that of the wall plate 1 and intended for fixing template 115 to the top chain of the wall 3. For this purpose, the two uprights 116 are pierced, in their upper end section 117, with 118 holes for fixing screws to the chain top, which holes are provided in several copies distributed along each of the sections 117, in the direction of the height, and oriented perpendicular to the face 208 of the gauge 115, defined in particular by the two uprights 116.

Downwards, each upright 116 further presents a lower end section 119, which is intended for lean freely, flat, against the face 112 of the wall 3.

Between their upper end sections 117 and lower end 119, the two uprights 116 have intermediate sections 120 braced by two sleepers horizontal, respectively greater 121, to the junction with the upper end sections 117, and lower 122, at the junction with the end sections lower 119, and by a strut 123 connecting the junction of one of the uprights 116 with the upper crossmember 121 at the junction of one of the other uprights 116 with the lower cross member 122. Preferably, the strut 123 and the two crosspieces 121, 122 define with the two uprights 116 the flat face 208 attached flat to the face 112 of the wall 3 when the template 115 is fixed against the latter, as well as another planar face 209 parallel to the face 208 and consequently oriented identically to the face 112 of the wall 3.

The two crosspieces 121 and 122 are spaced, vertically, from a distance close to that which separates the horizontal edges, respectively upper and lower, of plate 2, and each of them carries integrally, in protrusion on the face 209, a respective horizontal slide 124, 125, defining with this face 209 a horizontal groove respective 126, 127. The groove 126 corresponding to the upper cross member 121 is open downwards and the groove 127 corresponding to the lower cross member 122 is open upwards, the two grooves 126, 127 also being open on both sides in a horizontal direction parallel to the face 209 of the template 115. The two grooves 126, 127 are positioned, one with respect to the other, and dimensioned so that we can introduce it, by a horizontal slide parallel to the face 209 and without play, with the exception of a functional play allowing a such sliding respectively a marginal area of the plate 2 adjoining the upper horizontal edge thereof as well as this upper horizontal edge itself and an area edge of plate 2 adjoining the horizontal bottom edge of it as well as this horizontal edge itself, then that the face 4 of the plate 2 is vertical and slides, flat, against the face 209 of the template 115. The grooves 126 and 127 retain plate 2 against movement in all directions except a horizontal direction parallel to face 209, in particular in a position of the plate 2 illustrated in phantom in Figure 12, position in which its upper and lower edges are horizontal, its vertical edges are mutually symmetrical by compared to an unreferenced average plane of the gauge 115, which is vertical and forms a plane of mutual symmetry for two uprights 116, and its face 4 rests flat against the face 209 of the template 115, between the two slides 124 and 125, being parallel to the face 112 of the wall 3 due to the conformation and orientation of grooves 126 and 127, and more precisely rests flat against the intermediate sections 120 of the two uprights 116, against the two crosspieces 121 and 122 and against the strut 123 which thus ensure an intermediary for supporting the plate 2 flat against the face 112 of the wall 3.

To releasably object to the plate 2 thus positioned escapes from the slides 124, 125 by a horizontal sliding, parallel to the face 209, the two slides 124, 125 have holes 128 arranged identically to holes 7 so that when the plate 2 occupies the position illustrated in Figure 2, each of these holes 128 coincides with a respective hole 7 of such so that we can engage in the coincident holes a pin or other immobilizer removable from the plate 2 relative to the slides 124 and 125.

A skilled person will readily understand that the use of the template 115 allows the plate 2 to be arranged in locations of a wall 3 which do not in themselves present the mechanical resistance necessary for direct anchoring of this plate 2 by screws engaged in the holes 7 thereof. A Those skilled in the art will also readily understand that templates 115 can be made in a lot form lighter than wall plate 1, and can be therefore much easier to be rigorously positioned so that grooves 126 and 127 are horizontal before being fixed to the wall 3, positioning rigorous of wall plate 1 then simply resulting of the engagement of its plate 2 in the two grooves 126 and 127 before it is immobilized therein by pinning, or analogous, coincident holes 128 and 7.

The other variant of the template 115 illustrated in Figure 12 shows the elements of it which just described but the lower end sections 119 of the two uprights 116 extend vertically, simply shown schematically in phantom in the figure 12, to the level of a lower chain not shown in the wall 3, being rigidified by horizontal crosspieces and oblique struts, fully comparable respectively at crosspieces 121 and 122 and at strut 123. The lower end sections 119 thus extended present, at a level corresponding to that of the low chain from wall 3, holes at all points comparable to holes 118, distributed like these in the direction of the height, for receive fixing screws to the bottom chain of the wall 3. This attachment is added to the attachment to the top chain thereof, which stiffens the support of the wall plate 1 on the wall 3 through the template 115.

Naturally, other embodiments of a such template can be chosen without leaving for as much of the scope of the present invention.

On its face 5, the plate 2 has integrally, cantilevered, a flat, horizontal cradle 8, propped opposite of the wall plate 1 by gussets 9 and struts 10 and also part of the wall plate 1. When viewed in plan, i.e. in a direction vertical, the cradle 8 has a generally rectangular shape, one of whose long sides is defined by its junction with the face 5 of the fixing plate 2 and of which the others sides are defined by an edge 11 formed of planar facets, vertical and perpendicular two by two, not referenced. Downwards, the cradle 8 is delimited by a lower face 12 of indifferent shape, for example planar and horizontal while, upwards, it is delimited by a upper face 13 which, while having a conformation general flat and general horizontal orientation, has a concave shape which will now be described.

Along edge 11, this upper face 13 has the shape of a plane, horizontal, delimited edge 14 on the one hand by the edge 11 and on the other hand by a shoulder 15 parallel to song 11, that is to say defined like him by plane, vertical and perpendicular facets two to two, and like him defining a rectangular plane with the side 5 of the wall plate 1. The shoulder 15 is connected to the edge 14 up while it connects down to three sides 16, 17, 18 of the upper face 13 by defining a rim around the assembly formed by these panels 16, 17, 18 with face 5 of the wall plate 1. Pan 16 is flat, horizontal, and runs along side 5 of the wall plate 1. It is rectangular, one of its long sides being defined by its connection with face 5 and its two short sides being defined by its connection with the shoulder 15, and it connects by its second long side, in the direction of a distance from face 5 of the wall plate 1, perpendicular to this face 5, to the pan 17 which has meanwhile a concave shape, and more precisely the shape of a part of cylinder of revolution around an axis horizontal 19, parallel to face 5 of wall plate 1 and located on the same side of it as the cradle 8, above of it. The angular development of pan 17, in reference to axis 19, is less than 180 °, and for example of around 45 °, evenly distributed on both sides of a vertical plane 20 including axis 19, i.e. also parallel to side 5 of wall plate 1. Pan 17 so also when viewed in plan, a shape rectangular with a large side defined by its connection with pan 16, along one long side of it, and the two short sides by its connection with the shoulder 15. By its other large side, in the sense of a distance relative to the face 5 of the wall plate 1, perpendicularly on this face 5, the pan 17 is connected to the pan 18 which is planar and coplanar with pan 16, and presents, when is seen in plan, a rectangular shape with a large side is defined by its connection with pan 17 while the other long side as well as the two short sides are defined by its connection with the shoulder 15.

In a vertical plane 21 perpendicular to the axis 19 and to plane 20 and constituting a plane of symmetry for the wall plate 1, i.e. for mounting plate 2 and the cradle 8 thereof, as well as for the device lifting according to the invention considered as a whole, the cradle 8 has a notch 22 opening into its edge 11 as well as in its lower 12 and upper faces 13 but not reaching the wall plate 1. More precisely, the notch 22 is delimited by two lateral flanks 23, planes, vertical, mutually parallel and mutually symmetrical with respect to the plane 21, which flanks 23 are connect to edge 11 in the direction of a distance by relative to face 5 of wall plate 1, perpendicularly to this face 5, to the lower face 12 downwards and at the edge 14, at the shoulder 15 and at the pan 18 upwards. In the direction of approximation vis-à-vis side 5 of the wall plate 1, perpendicular to this face, both sidewalls 23 are connected to the same sidewall 24 at the bottom of notch 22, which is concave and semi-cylindrical revolution around a vertical axis 25 located in the plane 21 and passing at least approximately through the junction between the sides 17 and 18 of the upper face 13 of the cradle 8. This bottom flank 24 thus connects downwards to the face lower 12 and upwards in pan 17 of the upper face 13, approximately on the half of the dimension that this pan 17 is perpendicular to face 5 of the plate wall 1, from the connection between panels 17 and 18.

Furthermore, along two vertical axes 26 quant to them located in the plane 20, perpendicular to the axis 19, and mutually symmetrical with respect to plane 21, the cradle 8 is drilled right through, that is to say between the pan 17 of its upper face 13 and its lower face 12, of two lights 27 delimited by an inner peripheral face respective 28 cylindrical of revolution around the axis 26 respective, with a diameter approximately equal to the dimension that the pan 17 presents perpendicular to the side 5 of the wall plate 1, between its connections respectively with pan 16 and with pan 18.

Above the cradle 8, the face 5 of the plate fixing 2 has removable fixing means for two mutually symmetrical yokes 29 with respect to plane 21, for example in the form of respective vertical slides 30 receiving screeds 29 vertically sliding on along face 5 of the fixing plate 2. Two stops not shown limit the sliding of the yokes 29 towards the down, so that they stay spaced up, from the upper face 13 of the cradle 8, and holes 31 are arranged in the fixing plate 2 and pass through it side by side, between its faces 4 and 5, to receive pins not shown of removable immobilization of clevis 29 against sliding upwards in the slides 30. When they are thus immobilized at against a sliding with respect to the slides 30, upwards and downwards, the yokes 29 occupy the fixing plate 2 a determined position, in which they will be described.

Each yoke 29 has a flat, vertical core 32, attached to face 5 of wall plate 1 and cooperating with the slides 30 for guiding the yoke 29 at vertical sliding relative to the fixing plate 2, and two wings 33 also flat and vertical, but perpendicular to the core 32 and to the face 5 of the plate attachment 2, so as to be cantilevered above from the upper face 13 of the cradle 8, being spaced apart this upper side up as we said more high. The two yokes 29, mutually symmetrical by with respect to plane 21, are respectively symmetrical by relative to a respective unreferenced plan, parallel to this plane 21 and including the axis 26 of a respective light 27. In in other words, the two wings 33 of each yoke 29 are mutually symmetrical about a plane including the axis 26 of the inner peripheral face 28 of a light 27 respective, which plane is perpendicular to axis 19.

Each of the wings 33 is dimensioned so as to intersects axis 19 and is present mainly above from it, a respective light 34 passing through it right through right parallel to this axis 19. Each of the lights 34, which are mutually identical, presents the shape of a portion of ring of revolution around the axis 19, with an angular development which, in the example illustrated, is of the order of 120 °; however, this figure is indicated as a nonlimiting example.

The lights 34 of the two wings 33 of the same yoke 29 receive and guide, with respect to a rotation around the axis 19 with respect to the yoke 29 and therefore by compared to wall plate 1, a straight pin 35 axis 36 parallel to axis 19 and thus shifted upwards relative to this one. We will observe that the two pins 35, corresponding to the two yokes 29, are mutually independent, but a skilled person will understand, at the reading the rest of the description, that they are in fact coaxial when in use. The two pins 35 are immobilized against sliding in parallel to their axis 36 or to the axis 19 relative to the wings 33 of the corresponding clevis 29 respectively, for example at means of appropriate shoulders, bearing on the wings 33 around the lights 34, but their mounting is removable, each of them being for example produced by assembly of several parts screwed mutually along the axis 36, in a manner not described in detail but easily understandable by a skilled person.

Finally, below the cradle 8, respectively on either side of the vertical of it, the plate of fixing 2 door, integrally, two yokes 37 in overhang on its face 5, and these two yokes 37 carry, at pivot around the same axis 38 parallel to axis 19 and located in the immediate vicinity of side 5, with no other possibility relative displacement, a respective threaded rod 39 of respective axis 40 perpendicular to axis 38. Each of the threaded rods 39 can receive two nuts 41 whose utility will emerge from the rest of the description.

To cooperate with the wall plate 1 as well designed, the retaining plate 42 has a structure which will now be described.

This holding plate 42 is intended to take support on the cradle 8 and has for this purpose a plate support 43 intended to be housed partially between the shoulder 15 of the cradle 8 and the face 5 of the plate attachment 2 with limited relative tilting possibility around axis 19, intended to allow adjustment of horizontality of plate 43 in case a defect in the verticality of the wall 3 would cause a defect in the verticality of face 5, a horizontality adjustment of axis 19 resulting in turn from above-mentioned horizontal adjustment of the upper zones and lower edge 6 of fixing plate 2.

More specifically, the support plate 43, supposed horizontal, has a planar upper face 44 and horizontal, of general rectangular plan defined by its connection to a vertical edge 45, connecting as for him down to a underside 46 which certainly presents a rectangular plane identical to that of the upper face 44 but is not planar, and more precisely has a conformation in relation to that of sections 16 to 18 of the upper face 15 of the cradle 8 in order to provide guidance mentioned above with respect to the relative tilting around the axis 19.

To allow this switchover, the shape of the support plate 43, in plan, that is to say the shape of its upper 44 and lower 46 faces, in plan, is substantially identical to the shape, in plan, that the shoulder 15 of the upper face 13 of the cradle 8 defined with the face 5 of the fixing plate 2, however with slightly lower so as to spare with the edge 45 of the plate support 43 and the assembly formed around sections 16 to 18 by the shoulder 15 and the face 5 of the fixing plate 2 a functional clearance which may be less than 1 mm.

To cooperate with sections 16 to 18 of the face upper 13 of the cradle 8, the lower face 46 of the support plate 43 also has three sides 47, 48, 49 of which the first and the last are planes, mutually coplanar, parallel to face 44 and arranged respectively on either side of the second, which presents a convexity in relation to the concavity of the pan 17 of the upper face 13 of the cradle 8.

More specifically, the pan 48 has the shape of a part of cylinder of revolution about an axis which, when the retaining plate 42 cooperates with the wall plate 1, merges with axis 19 so that it has been designated by the same reference number. Pan 48 thus presents a identical diameter to that of pan 17, but its development angular is slightly higher, for example of the order of 60 ° and each of the sections 47, 49 present between its connection with the pan 48 and the edge 45 of the support plate 43 a dimension respectively smaller than that of pan 16 between the pan 17 and the face 5 of the fixing plate 2, and to that of pan 18 between pan 17 and shoulder 5, so that, when the holding plate 42 is in service, it rests by pan 48 on pan 17, with tilting guide relative around the axis 19, and its sections 47 and 49 are placed opposite sides 16 and 18, respectively, in presenting with respect to these a certain possibility of clearance, authorizing the aforementioned tilting, at during which one of the sections 47, 49 can come into contact with the respectively corresponding pan 16, 18, which corresponds to a limitation of the aforementioned tilting, but the other two of these sections are then separated.

Note that the positioning of the yokes 29 relative to cradle 8 is such that there is no contact between these yokes and the upper face 44 of the plate support 43, that is to say limitation of tilting due to of these yokes 29. This positioning is however such that the yokes 29 prevent the backing plate 43 from escaping from the cradle 8 upwards, removable mounting on face 5 intended to authorize the assembly and disassembly of the retaining plate 42 relative to the wall plate 1.

When the retaining plate 42 cooperates with the wall plate 1, the plane 21 of symmetry thereof constitutes also a plane of symmetry for him, and the plateau of support 42 present, immediately above the notch 22 of the cradle 8, a notch 50 of the same shape in plan, also symmetrical with respect to plane 21. More precisely, this notch 50 is delimited by two sides lateral 51 planes, mutually parallel and mutually symmetrical with respect to plane 21, from which they are spaced of a distance identical to that which separates from this plane the lateral flanks 23 of the notch 22, so as to extend upwards respectively one and the other of these flanks 23. The lateral flanks 51 thus open on the one hand into the edge 45 of the support plate 43 and on the other hand in the face upper 44 of it and in the pan 49 of its face lower 46. The notch 50 is further delimited by a concave bottom flank 52, also vertical, to which the side blanks 51 are connected in the direction of a distance compared to their connection with edge 45. This flank of bottom 52 is for example cylindrical of revolution around a vertical axis 53 of plane 21, which axis 53 is located on the same side of axis 19 as axis 25 and, depending on the position tilting of the retaining plate 42 around the axis 19 compared to wall plate 1, can be confused with axis 25 or cut it. The respective diameters of bottom flanks 52 and 24 are identical, so that the flank bottom 52 extends the bottom flank 24 upward when the axis 53 coincides with the axis 25. The bottom flank 52 opens out upwards in the upper face 44 of the support plate 43 and down into the convex pan 48 of the underside 46 thereof.

Around the bottom flank 52 of the notch 50 are distributed, at the same distance from the axis 53, tapped holes 54 with respective axis 55 parallel to axis 53, axes 55 being equidistant from it. As will appear later, these tapped holes 54, opening into the upper face 44 at less, are intended to receive fixing bolts, on the support plate 43, of a lifting cylinder arranged as follows the axis 52 and engaged in the notch 50 of the support plate 43 as well as in the notch 22 of the cradle 8 to form a protrusion below the latter.

Furthermore, along two axes 56 parallel to axis 53 but intersecting axis 19, mutually symmetrical relative to the plane 21 when the retaining plate 42 cooperates with the wall plate 1 and located at the same distance from plane 21 than axes 26, so that coincide respectively with these when the plate holding 42 occupies around the axis 19, relative to the wall plate 1, an orientation such that axis 52 coincides with the axis 25, two holes 57 which pass right through it part and extend downward inside a sleeve respective coaxial 58, each of the sleeves 58 being delimited in the direction of a distance from the respective axis 56 by a cylindrical outer peripheral face 59 of revolution around this axis 56 with a diameter less than that of the inner peripheral face 28 of a light 27 so that each sleeve 59 can pass through apart the cradle 8 by a respective light 27 without that this constitutes an obstacle to the tilting of the holding 42 around the axis 19 relative to the plate wall 1. Internally, each hole 57 and the sleeve 58 which the downward extension are delimited by a peripheral face inner 60 cylindrical of revolution around the axis 56 respective, with a diameter smaller than that of the outer peripheral surface 59. The sleeves 58 can be fully or partially closed down, which is the case in the application more particularly described and illustrated, or be open down, which could be the case in this application, described later, if we want to avoid giving the sleeves 58 a dimension important parallel to their axis 56. In the example illustrated, this dimension is such that the bottom of the sleeve 58 either roughly located at the same level as the lower zone, horizontal, from edge 6 of wall plate 1.

The two sleeves 58 are identical, mutually symmetrical about plane 21, and each of them door by its outer peripheral face 59, in the direction a distance from this plane 21, an eyelet 61 which can be fixed or, preferably, is movable by rotation relative to the corresponding sleeve 58, around an axis 62 parallel to axes 19 and 38 and located approximately at same level as the latter so that each eyelet 61 can receive a respective threaded rod 39, the axis of which 40 then cuts the axis 62 perpendicularly, and that the gold can immobilize the retaining plate 42 against pivoting about the axis 19 relative to the plate mural 1, in a determined orientation corresponding to a rigorous verticality of axes 53 and 56, immobilizing each eyelet 61 on the threaded rod 39 corresponding to the by means of the two nuts 41 thereof, tightened respectively on either side of the eyelet 61. In order not to constitute obstructing the passage of the sleeves 58 in the lights 27 of the cradle 8 for mounting and dismounting the retaining plate 42 with respect to wall plate 1 without being forced to oversize for this purpose the lights 27, the eyelets 61 are preferably removably mounted on the sleeves 58, for example by interlocking, so illustrated but easily conceivable by a skilled person.

Figures 4 to 8 and 11 illustrate the assembly formed by a wall plate 1 and a retaining plate 42 in various conditions of use.

In all these conditions of use, several devices according to the invention 63, each of which has a wall plate 1 and a retaining plate 42, and the compositions may be partly different, are fixed by their respective wall plate 1 on the outside faces 112 different exterior walls 3 of a building including we want to raise the roof, through the frame 65 thereof, it being understood that one could also make provision for devices according to the invention 63 interior walls, namely cross walls. various devices of the invention 63 are installed from so that the axes 19, parallel to the face 112 respective due to the application of side 4 of the plate 2 respective flat against it, are horizontal, what an appropriate orientation adjustment is obtained for each wall plate 1 against the face 112 of the wall 3 during its fixing on the latter, and that axes 53 and 56 are vertical even if axes 25 and 26 are not exactly due to a certain defect in the verticality of the face 112 of the wall 3, and which is effected by tilting the tray holding 42 around the axis 19 relative to the plate mural 1, and immobilization in the position obtained by means eyelets 61 and nuts 41.

In each of the applications illustrated, each assemblies formed by a hole 57 and the corresponding sleeve 58 integrally receives a straight rod respective coaxial 64, abutting down inside the respective sleeve 58 and projecting upwards, above the upper face 44 of the support plate 43, on a height greater than the desired lifting height for the roof, taking into account that even if we fix the wall plates 1 of the various devices according to the invention 63 as close as possible to the roof, i.e. as high as possible on the walls 3, some components of each of these devices according to the invention 63 must come between the retaining plate 42 and the roof.

Each of the rods 64 is retained against a extraction, upwards, out of the corresponding sleeve 58, as well as against a fall inside this last if open down, by means of one, respective, of pins 35. For this purpose, each rod 64 engages between the two wings 33 of a respective yoke 29 and is drilled right through, perpendicular to its axis confused with axis 56, of a hole not illustrated, susceptible to receive coaxially one of the pins 35, engaged by elsewhere in the respective lights 34 of the two wings 33 of the corresponding clevis 29 respectively. The shape of these lights 34 allows movement of pins 35 by relative to the wings 33, in relation to the orientation of the axes 56 with respect to the axes 36, during adjustment tilting orientation of the retaining plate 42 around the axis 19 relative to wall plate 1.

Each rod 64 passes through the roof which, at this point, effect, removed some tiles or slates, and presents above of this roof a respective free end 66. Both free ends 66 of the two rods 64 are secured mutually by coaxial socket in a blind bore respective, not referenced, of a connection box or connection 67 specific to these two rods, on which this box 67 can also be fixed by any suitable means, and in particular by pinning or screwing.

The connection box 67 present in the example illustrated the general shape of a parallelepiped rectangle, defined in particular by a flat lower face 68, horizontal, in which the bores are arranged blind, an upper face 69 also flat and horizontal, to which the bores in question are closed, two front faces 70 plane, vertical, parallel to a plane not referenced defined by the two axes 56, and two faces side 71 also flat and vertical, meanwhile perpendicular to this plane and mutually symmetrical by compared to plan 21, as well as rods 64 due to their coaxial mounting in the sleeves 58.

The two front faces 70 and the two faces lateral 71 each carry, in solidarity, a yoke respective 72, 73 suitable for receiving and retaining, for example by pinning along a respective axis parallel to the axes 56, a rigid tie 74, 75 for connection with the box connecting a neighboring lifting device 63, respectively. In depending on the position of the two connection boxes to connecting each other by a tie 74 or 75, the Man trade will choose, on each of these connection boxes, the most suitable screed among the 72 screeds on the faces frontal and the yokes 73 of the lateral faces.

Thus the tie rods 74, 75 connecting together the connection boxes 67 of the various devices according to invention 63 spread around a roof form above from it a static belt, preferably continuous, stiffening at this level the structure in particular defined by guide rods 64, also stiffened by their connection with walls 3, through holding plates 42 and wall plates 1, which allows to maintain a rigorous parallelism of the different guide rods 64 of the various devices 63, on the entire length of these rods 64, that is to say even in their areas furthest from their liaison with walls 3.

For this purpose, not illustrated but easily conceivable by a person skilled in the art, one can also provide a link by adjustable tie rods between each box of connection 67 and the wall plates 1 of the devices according to the neighboring invention, for example between the yoke 72 of the box of connection and rings fixed on the face 5 of the plate of fixing 2 of the wall plate 1 of these neighboring devices, due to a ring near the lower corners of this face 5.

Along the pair of guide rods 64 of each lifting device 63 is mounted in translation along the axes 56 thereof, that is to say in translation vertical, a console common to these two rods 64, one of which first exemplary embodiment, referenced 76, has been illustrated Figures 4, 5, 6, 7, 8, 9, 11, including a second example embodiment, referenced 77, has been illustrated in FIG. 10.

In its first embodiment, the console 76 shows, as best shown in Figure 9, the shape general of a rectangular parallelepiped defined by faces lower 78, upper 79, front 80 and side 71 of connection box 67, as to their respective orientation.

Along each of the axes 56, which therefore cross the lower 78 and upper 79 faces, perpendicularly, the console 76 is pierced right through respective bore 82 whose internal section perpendicularly to the respective axis 56 is closely complementary of the outer section of a rod 64 perpendicular to this axis, so that, by each of these bores 82, the console 76 is slidably mounted on the two rods 64, in a direction parallel to the axis 56, that is to say vertical. This section can be cylindrical of revolution around the respective axis 56, as well as the interior section holes 57 and sleeves 58 and those of the bores blinds not referenced from the connection box 67, which interior sections are also closely complementary of the outer section of the rods 64, but it's fine understood that other sections, also closely complementary, could be chosen and that, in particular, the rods 64, externally, and the holes 57, bores 82, and unreferenced blind bores of the connection box 67, internally, could also have a section different, for example a fluted section allowing index the rods 64 around the axis 56 respective, especially to properly orient the holes crossing these rods 64 perpendicularly to the axis 56 to receive the respective pin 35 retaining with respect to the wall plate 1.

On each of its lateral faces 81, the console 76 carries jointly, projecting, a respective bearing 83 articulation around a respective axis 84 parallel to the axes 56 and located in a plane, not referenced, common to both axes 56, the two bearings 83 being mutually symmetrical compared to a plan confused with plan 21. In addition, the two bearings 83 are set back respectively towards the high relative to the underside 78 of the console 76 and downwardly relative to the upper face 79 thereof.

By the bearings 83, the console 76 can receive different types of accessories, adapted to the shape of the frame 65 of the roof to be lifted and at the position of the device according to the invention 63 relative to the frame 65 thus conformed.

A first of these accessories, consisting of a bracket 85, is illustrated in FIG. 9 in two copies, each of which is carried by a respective bearing 83 and which are thus arranged respectively on either side of the console 76, while FIGS. 4, 5, 6, 11 illustrate a single copy of such a bracket 85 for such a console 76.

Each bracket 85 has three straight arms 86, 87, 88 rigid and forming a rigid assembly, the first is parallel to axis 84 and runs along it, the second is perpendicular to this axis 84 and cantilevered relative to this one from one end by which this arm 87 is connected to the upper end of the arm 86, and the third of which obliquely connects the end free from the second arm 87 at the lower end of the first arm 86 to constitute a strut between the two arms 86 and 87, reference being made to a position of assembly of the bracket 85 to the console 76.

For the purposes of this assembly, the arm 86 carries in solidarity, opposite the overhang formed by the arm 87, a yoke 89 comprising two arms projecting perpendicularly at axis 84 and intersecting therefrom, at the rate of a lower arm 90 located under the corresponding bearing 83 and an upper arm 91 located above this bearing and extending arm 87. These two arms 90 and 91 are mutually spaced, along axis 84, of a dimension greater than that of the bearing 83 along this axis, and receive so integral but removable, along this axis 84, a common rod 92 of articulation of the square 85, around the axis 84, in this bearing 83. For this purpose, the rod 92 has a shape cylindrical outer of revolution around the axis 84, and the bearing 83 and the arms 90 and 91 are drilled along this axis a respective bore internally having the same section. To ensure removable mounting, the rod 92 is for example constituted by a screw having a head that we rest down on the upper arm 91 and a threaded end that receives a nut or assembly nut - lock nut under the lower arm 90.

Along axis 84, the upper arm 91 of the yoke 89 and the bearing 83 are positioned and dimensioned in such a way so that, if we let the set of square 85 rest down, by the upper arm 91, on the bearing 83, the arm 87 of square 85 is level with the face upper 79 of console 76, as an extension of this upper face 79, a flat upper face 93 perpendicular at axis 84, as shown in the left half of the figure 9. So there remains a space between the bearing 83 and the lower arm 90 of the yoke 89. This makes it possible to place also square 85 in a higher position by compared to console 76, as illustrated in the section on the right of this figure 9. For this purpose, in a non shown, just insert shims of thickness between the bearing 83 and the upper arm 91 of the yoke 89, but other means of adjusting the level of the square 85 by compared to the console 76 could be provided without that so far from the scope of the invention, in particular rack and ratchet systems, or with threaded rod, nut and cylinder lock nut, if electrically controlled to provide substantially the same level to the arms 87 of the different brackets 85.

Such an assembly also makes it possible to place the square 85 in a general orientation angularly offset, in particular by 90 °, around the axis 84 relative to the console 76, that is to say with respect to the common plane not referenced axes 56, in the case where the device according to invention 63 is placed near a nip point or protruding from wall 3, as also shown in half of right of Figure 9, it being understood that the settings of level of brackets 85 are mutually independent when two brackets are thus provided on the same console 76, of even that their settings are mutually independent orientation to it.

This makes it possible to best offer elements of the frame 65 of the roof to be lifted, support distributed over the upper face 79 of the console 76 and on the upper faces 93 arms 87 brackets 85.

In addition, the arms 87 of the brackets 85 are shaped so that they can be rigidly linked together, bracket 85 carried by a console 76 to a bracket 85 carried by a neighboring console 76, to constitute around the frame 65 a dynamic belt, that is to say offering a support as continuous as possible for structural elements 65 during lifting and after lifting, while raises walls 3 to the desired level.

To this end, as will also appear from the examination in Figure 9, the arm 87 is constituted by a profile hollow, U-section open upwards, i.e. towards its face 93, in order to be able to receive internally a straight, rigid beam 94 for connection with the upper arm 87 from another bracket 85, corresponding to a console 76 neighbor, so that this beam 94 extends horizontally arm 87 and also provides support for elements of the frame 65, by an upper face 95 perpendicular to axis 84 and approximately coplanar with the face 93 of the arm 87.

The beam 94 has been illustrated in FIGS. 5 and 6, in particular, in the form of an I-profile, one of the wings of which defines the upper face 95, but other modes of achievement could be chosen without going out for as much of the scope of the present invention.

Preferably, the beam 94 is retained so removable on the two arms 87 which it connects by means allowing limited vertical tilting, compatible with possible race deviations between consoles 76 or 77 during the raising of the roof; as an example no limitative, we can accept a tolerance of 3% in this regard over a meter of travel in the case of the use of cylinders, described later, for moving consoles 76 or 77 along the guide rods 64, this tolerance can be reduced to 0% by using electronic rules correction.

For example, the beam 94 is fitted inside U-shaped profile constituting each arm 87. It is there retained on the one hand by engagement of its extreme section, received inside the profile, under a horizontal pin 96 which runs along the upper face 93 of the arm 87 near the free end of it and goes right through profiled, perpendicular to it, in a position as there remains vis-à-vis the beam 94 a vertical clearance limited allowing the aforementioned limited vertical tilting as well as a sliding of the beam 94 inside the streamlined. It is also retained by engagement of a another horizontal pin 97, removable, parallel to the pin 96 but placed outside the arm 87 and connected to it last by tie rods such as 98 hinged around it an axis 129 parallel to the pin 96 and adjustable in length, in a suitably chosen hole, horizontally, beam 94 in locations regularly distributed along it, at least near the section extreme above.

The aforementioned race deviations between the consoles 76 or 77 result in a variation of the distance separating the axes 129 corresponding to two arms 87 receiving the same beam 94, and each tie rod 98 preferably comprises means allowing a limited elastic variation of the distance mutually separating axis 129, fixed with respect to arm 87 corresponding, and the pin 97, fixed relative to beam 94. For example, for this purpose, each tie rod such that 98 has the shape of a straight rod 210, of section constant and direction perpendicular to the axis 129. At a end, this rod 210 integrally carries a sleeve 133 coaxially engaged on pin 97 and retained so removable thereon, by any appropriate means and by example by pinning. By a section adjoining its end opposite, the rod 210 is received and guided to slide, perpendicular to the axis 129, in a sleeve 130 itself articulated around axis 129 on arm 87. On both sides other of the sleeve 130, respectively, the rod 210 carries a adjustable fixed stop 131, 132, for example produced under the shape of a split ring fixed by tightening on the rod 120, the mutual spacing of the two stops 131, 132 in the direction of the length of the rod 210 being greater than the dimension corresponding of the sleeve 130 to authorize said variation, and a helical spring 134, coaxial with the rod, is maintained in compressive stress between the sleeve 130 and one of the stops, for example the stop 132 located opposite sleeve 133 for connecting each beam 94 to the two arms 87 who wear it.

The use of brackets 85, in one or two copies, together with a console 76 and with beams 94 connecting between the respective arms 87 of these brackets 85 are particularly suitable when the frame 65 of the roof to be lifted has elements distributed along a horizontal line, as it can be the case for example along a sand break, at the bottom of slope of a roof with two or four slopes.

The lifting of a roof with four slopes can thus only be carried out using consoles 76 fitted brackets 85 themselves provided with connecting beams 94 mutual, taking support under the sand pits or under the crossbowmen, along these, as illustrated Figures 8 and 11.

In the case of a two-slope roof, for example against, it is better to act also under the rafters gable walls or under purlins along these crossbowmen, and we use for this purpose, together with a console 76 possibly provided with a single bracket 85, if the device according to the invention 63 is at the angle of two walls, as shown in Figures 4 to 7, a device 99 of connection which accommodates the slope of the roof. A montage any similar point can advantageously be used at level of cross walls, whether to raise a roof with two slopes or to raise a roof with four slopes, not illustrated but easily transposable, by a Man of the trade, from the assembly which will be described.

The connecting device 99 can be mounted on the bearing 83 of console 76 in a manner identical to that of bracket 85, via a base 100 provided for this effect of a yoke 114 in every way comparable to yoke 89.

This base 100 defines an articulation bearing, around an axis 101 perpendicular to the two axes 56, that is to say horizontal, for a cradle 102 for receiving a rigid beam 103, straight and perpendicular in direction to axis 101, which we have along the crossbowman of so as to be supported either under it or under the frame 65 failures, if any through of suitable shims, and that one rests on at least two cradles 102, corresponding to two devices according to the invention 63 distributed over the pinion. Beam 103 is by example consisting of an I-shaped metal profile, one of which wing, for example the upper wing, is received and guided to the sliding in its direction perpendicular to the axis 101 in a zone that is complementary to the cradle 102. Advantageously, the beam 103 is part of a farm 136, preferably adjustable of which it constitutes a crossbowman and that we just brought under the frame 65 along the pinion, removably, to ensure continuity, at this level, of the dynamic belt otherwise formed by brackets 85 and beams 94. Such an adjustable truss can also be provided along cross walls, preferably in two copies arranged respectively on the part and other side of each cross wall, to ensure at this level the same load recovery functions, during lifting, and dynamic belt continuity link. In a way easily conceivable by a skilled person, such a farm 136 advantageously consists of an assembly of straight metal profiles, with two rafters such as 103 hinged together, and each connected by a device 99 to the console 76 of at least one device according to the respective invention and at least one entry 135, of preferably telescopic, articulated on these two rafters to allow an adaptation of the geometry of the farm to that of frame 65 and ensure support from each breakdown on the adjustable truss, if necessary via suitable wedging devices; the different articulation axes, such as 137, defined for example by yokes such as 138, are mutually parallel and perpendicular to an average plane, not referenced, of the farm 136, which is oriented substantially parallel to the wall gable or associated cross wall; crossbowmen such that 103 can themselves be telescopic, or be cut to length on site but you can also plan to allow a length to protrude from the roof larger or smaller depending on the dimensions of the roof, the where appropriate by savings arranged for this purpose in the walls.

A skilled person will readily understand that the joint of each cradle 102 around an axis 101 by compared to the console 76, allows to adapt to each installation conditions, and in particular to orient if necessary the axis 101 perpendicular to the non-referenced plane of the axes 56, as illustrated in the right half of Figures 4 and 7, in the case of a device according to the invention 63 placed on a gable wall or on a cross wall, for example near the ridge failure.

It will be observed that, when several devices according to the invention are distributed on a gable wall, in the case of a roof with two slopes, or on a cross wall, in the case of a roof with two or four slopes, it is not not essential to ensure a rigid connection between the beam 103 of adjustable truss 136 and console 76 of device according to the invention 63 closest to the gable wall or the cross wall, respectively. On the contrary, it can be better to use a device which while ensuring a connection between the beam 103 and this console 76, allows a slight mutual movement in the direction of the height, in particular, in order to absorb any differences between the consoles 76 or 77.

Under these conditions, the device 99, which provides a rigid connection between the beam 103 and the console 76, by a connecting device 139 which goes now be described with reference to Figure 13.

This device is designed to position itself on either of the bearings 83 of the console 76, in a way identical to device 99, and for this purpose has a flat base 140, vertical in use position, fitted a screed not visible in Figure 13 but at all points comparable with clevis 114 or clevis 89, to ensure the mounting of the device 139 on the corresponding bearing 83 of the console 76. The device 139 as a whole has symmetry with respect to an unreferenced vertical plane which also constitutes a plane of symmetry for the screed ensuring its mounting on the bearing 83 of the console 76 and includes axis 84 of this bearing 83 as well as axis 53, after mounting the device 139 on the console 76, so that the same device 139 can be used indifferently to right and left of a console 76, if one faces such a console.

The base 140 of the device 139 has the form general of a rectangular frame, comprising two uprights vertical 141, mutually symmetrical about the plane of aforementioned symmetry of this device, and two crosspieces horizontal 142, respectively upper and lower, rigidly connecting the two uprights 141 respectively to their upper part and their lower part, perpendicularly to this plane of symmetry.

Advantageously, the base 140 is adjusted in the direction of height in relation to console 76, by means similar to those which have been cited in connection with brackets 85, so that its upper cross member 142 is place at a distance compatible with mutual travel cited above under the sandblast of the frame 65 of the roof to be lifted.

Inside the frame thus defined by the base 140 are rigidly mounted vertical rods 143 one of which is located in the plane of symmetry of the device 139 and the other two are mutually symmetrical by relation to this plan; the rods 143 thus link together the two crosspieces 142, rigidly. On the three rods 143 is mounted for free vertical sliding, relative to the base 140, a slide 144 which bears integrally, in overhang opposite the articulation clevis of the base 140 on the console 76, a shaft 145 bearing itself, with guide to relative rotation about an axis 146 horizontal and in the aforementioned plane of symmetry of the device 139, as well as limited sliding possibility parallel at this axis, a cradle 147 at every point similar to the cradle 102 and cooperating in a similar manner with the beam 103; however, in the example illustrated in Figure 13, this is the lower wing thereof which is received and guided to the sliding, in a direction perpendicular to the axis 146, which is also the direction of beam 103, in a profiled area complementary to the cradle 147, being understood that it is the upper wing of the beam 103 which, in the case of this example of figure 13, like that of Figures 4 to 7, is supported under the purlins of the frame 65 to apply a lifting effort per action devices according to the invention 63 distributed on the wall gable or, as the case may be, on the cross wall.

Such a device 63 can advantageously be used to act on the two beams 103, forming a crossbowman, of the adjustable truss 136, at their articulation mutual, as well as under the blackout, as we have illustrated in figure 4.

In this case, a device according to the invention 63 is located immediately below the rim, so that its axis 53 is secant from the ridge failure and, as much as possible, that the plane of symmetry 21 of the wall plate 1 and retaining plate 42 coincides with a vertical median plane of symmetry thereof, like the shows figure 14.

The console 76, not visible in FIG. 14, of this device according to the invention 63 carries, by its two bearings 83 also not visible in this figure, a device 148 connection comprising a base 149 at any comparable point to the base 142 as to its conformation in a rectangular frame comprising two mutually symmetrical vertical uprights 150 relative to a mean plane of symmetry of the base 149, including axis 53 and merged with plane 21 in this case, and of two horizontal sleepers 151 perpendicular to it plan, at the rate of an upper cross connecting mutually the upper ends of the uprights 150 and a lower crossmember connecting ends lower of these. However, unlike base 142, base 150 has two mutually clevis symmetrical with respect to its plane of symmetry, to allow the rigid connection, but with the possibility of adjustment in the direction of the height, of the base 150 with the console 76, by the two bearings 83 thereof simultaneously; the adjustment in the height direction is such that the crosspiece upper 151 takes support under the ridge fault. These two screeds are not related to figure 14, but their design falls within the normal skills of a person skilled in the art; they are identical in all respects to the yokes 158 illustrated in the FIG. 15 about another device 155 for linking a console 76 and a beam 103.

Opposite the two yokes, that is to say also of the console 76, the base 149 integrally carries a tableau 152 plane, vertical, parallel to a plane defined by the axes 56 of the two guide rods 64, the table 152 being bordered by the two uprights 150 and the two crosspieces 151.

Cantilevered opposite the base screeds 149 as well as console 76, table 152 carries so joined together two mutually symmetrical 153 trees by relative to the mean plane of symmetry of the base 149 and located at the same level; in the height direction, relative to sleepers 151, these two shafts 153 ensuring the mounting of a respective cradle 154, on the one hand to the rotation of an axis horizontal 155 'parallel to the mean plane of symmetry of the base 149, with respect to which the two axes 155 'are mutually symmetrical, and on the other hand to the translation limited parallel to this respective axis 155 '.

Each cradle 154 has the general shape of a radial sleeve with respect to the respective axis 155 ′ in which is fitted and retained in a solid but removable manner, by example by keying not shown, an extreme section of one, respectively, of beams 103 constituting the rafters of the adjustable truss 136, so that the joint mutual of these beams 103 is carried out through their articulation around the respective axis 155 'on the table 152.

If necessary, provision may be made for table 152 limited travel in the height direction relative to the base 149, for example by means of a guide sliding at any point similar to that of the slide 144, through rods 143, relative to the base 140 of the device 139 described with reference to the figure 13.

A somewhat similar arrangement can be used under intermediate failures, as shown in Figure 15 where there is illustrated in particular a device according to the invention 63 mounted on a gable wall or on a cross wall, under a intermediate failure of frame 65 and more specifically in a position, in relation to this intermediate breakdown identical to the position occupied by the device 63 described in reference to Figure 14, with respect to the ridge failure.

To ensure the connection between the console 76 and the intermediate failure, on the one hand, and the beam 103 forming crossbowman from farm 136, on the other hand, on both bearings 83 of the console 76 is mounted a device for link 155 including in particular a base 156 at any point identical to base 149, and fitted like this, on its amounts 157 in all respects identical to amounts 150, respective clevis 158 of connection with one, respective, of bearings 83 of console 76, with possibility of adjustment in height so that the upper one of the crosspieces 159 from base 156, identical at all points to the sleepers 151 of base 149, take support under the intermediate failure considered.

By a set of vertical rods 160 in all point conforming to the rods 143 of the device 139 described in reference to FIG. 13, and connecting the two sleepers 159, base 156 carries, with possibility of limited vertical sliding, a slide not shown but in all respects to slide 144, bearing itself jointly a shaft 161 projecting opposite the yokes 158, along a horizontal axis 162 located in the plane means of symmetry of the base 156, passing through the axis 53 and coinciding with plane 21 as well as, at least approximately, with a median longitudinal plane of the intermediate breakdown in question.

This tree 161 carries itself, with the possibility of limited sliding along axis 162, and guide in rotation around the axis 162, with respect to the slide a cradle 163 'in all respects similar to cradle 147, in particular as regards upon reception and sliding guide of the beam 103 by the lower wing of the I-section constituting the latter.

By each of the devices 139, 148, 155 which have just been described with reference to FIGS. 13 to 15, the or each cradle 147, 154, 163 'is free to move, from in a limited way, both vertically and horizontally, namely in the sense of a distance or a rapprochement relative to the gable wall or the associated cross wall, if although the use of an adjustable truss 136 is compatible with the tolerances in the upward race of different 76 consoles, on the one hand, and with tolerances in the flatness of the gable wall or the bearing wall bearing the devices according to the invention 63, on the other hand. Of in preference to some of the connecting devices 139, 148, 155 or only one of them, especially when this is the device 148 constituting the mutual articulation of the two beams 103 and ensuring the lifting of the beam ridge by direct action on the latter, as it is the case in the embodiment of this device 148 described with reference to FIG. 14, may be associated with means of immobilizing the or each corresponding cradle, in the height direction, relative to the base corresponding, this immobilization can be carried out by wedging or by any other means.

The connecting devices 139, 148, 155 can be used jointly, in association with a farm adjustable 136, or separately; in particular, devices 99 can replace devices 139 by association with devices 148 and / or 155.

It will be observed that, when using devices of connection 139, 148, 155, these are the bases 149, 156 of these who are supported under the breakdowns to ensure the lifting of frame 65 at the gable walls or cross walls, while beams 103 do not come into principle not in contact with the frame and ensure simply the continuity of the aforementioned dynamic belt at level of gable walls and cross walls.

We can also plan to have the beams 103 of the adjustable truss 136 directly with the breakdowns, in particular intermediate breakdowns, preferably in providing that it is near them that is located the articulation of an entry 135 of the adjustable truss 136 with the beam 103 considered. So, advantageously, it's a device constituting the yoke 138 of mutual articulation of the entry 135 and of the beam 103 which also ensures the connection of the latter with the breakdown considered, as it is shown in Figures 16 and 17 which illustrate two modes of realization of such a device, referenced respectively 163 and 164. On each of these figures 16 and 17, the entry 135 is illustrated as the beam 103 in the form of a profile metallic I-shaped, with a vertical core and two wings, upper and lower respectively, one and the other horizontal in the case of entry 135 while they are inclined with respect to the horizontal in the case of the beam 103 forming a crossbowman. Naturally, a Man of profession will adapt the arrangements which will be described in other embodiments of entry 135 and beam 103 without difficulty, and without leaving the part of the present invention.

We will first refer to Figure 16, where we see that the connecting device 163 comprises a rigid sleeve 165 engaged on beam 103, by sliding along it, and comprising for this purpose two flat side walls, vertical, mutually parallel 166, arranged respectively on either side of the beam 103 and forming the yoke 138 below it, a wall planar top 167 integrally connecting the two walls side 166 and resting on the upper wing of the beam 103, and a lower wall 168 running along the lower wing, so that the walls 166, 167, 168 define between they a channel 169 in which the beam 103 is guided at sliding lengthwise, without other play than a functional game allowing this sliding. However, 5 between each of the upper 167 and lower 168 walls and the corresponding wing of the beam 103 are interposed, at inside channel 169, two respective pads such as 170, 171 than a respective clamping screw such as 172, crossing respectively the upper wall 167 or the wall lower 168 and cooperating by screwing with this wall respectively higher or lower, allows, at will, either to tighten on the corresponding wing of the beam 103, to completely immobilize it inside the canal 169, relative to the sleeve 165, in any position 5 relative desired, either to loosen to release the beam 103 and the sleeve 165 with respect to a relative sliding in the direction of the length of the beam 103.

Below the bottom wall 168, the two side walls 166 define the axis 137 by a shaft 173 connecting them mutually, in solidarity, according to this axis 137 and bearing, with possibility of rotation around this axis 137, a rectilinear arm 174, radial with reference to axis 137. In a non-referenced mean plane, perpendicular at this axis 137, the arm 174 has a continuous slit 5 175 which subdivides it into two mutually symmetrical legs 176 relative to this plane and each of which is radial in reference to axis 137, as shown in figure 17 where we finds arm 174 identically. Slot 175 and legs 176 are sized so that the soul of the profile constituting the entry 135 also engages precisely as possible in the slot 175, between the legs 176, and that the latter, thus arranged respectively on the one hand and other of this soul, apply at best, flat, against the upper wing and the lower wing of the profile. Holes 177 arranged opposite in the two legs 176, perpendicularly in the mean plane of symmetry between them, receive unrepresented screws passing through holes correspondents, suitably furnished for this purpose in the core of the profile constituting the entry 135, to ensure a securing of the latter with the arm 174, in a radial orientation of the profile relative to the axis 137. This orientation can be freely chosen, depending on the slope of the roof to be lifted, by pivoting the integral assembly formed by the entry 135 and the arm 176 around the axis 137 relative to the sleeve 165 itself secured to the beam 103, it being understood that entry 135 is in principle horizontal whatever the inclination of the beam 103, adapted to that of the roof, relative to the horizontal.

To immobilize each other the beam 103 and entered it 135 in the desired angular position, around axis 137, to device 163 is associated a separate device 178 of blocking, which comprises a lower slide 179 slidably mounted along entry 135, by the wing upper of it, an upper slide 180, mounted at sliding along the beam 103, by the lower wing thereof, and a straight strut 181 connecting mutually these two slides 179, 180 and articulated on each of them around a respective axis 182, 183 parallel to axis 137. This device 178, arranged inside of the acute angle formed by the entry 135 and the beam 103 with reference to axis 137, can be immobilized by friction of parts 179 and 180 on the profile wing respectively associated, namely the entry 135 and the beam 103, or again by pinching effect applied at each part 179, 180 to the wing respectively associated, for example thanks to skids controlled by screws, similar in all respects on pads 170, 171.

The strut 181 may have a length constant, in which case setting the relative orientation of the entry 135 of the beam 103 by rotation about the axis 137 is accompanied by a sliding of parts 179 and 180 on the associated wing respectively. We can also foresee that the strut 181 has an adjustable length between axes 182 and 183, and is for example produced in the form a screw jack, in which case parts 179 and 180 are immobilized respectively on entry 135 and on beam 103 during the relative orientation adjustment of these last around axis 137, and this adjustment is made by adjustment of the length of the strut 181. The realization of these different variants of the device 178 falls normal skills of a skilled person and will not be detailed further.

To support an intermediate failure not shown in Figure 16, and apply a lifting force to it by lifting of the adjustable truss 136, the upper wall 167 of the scabbard 165 carries securely, in an extreme zone higher if we take into account the joint slope of this wall 167 and the beam 103, assumed to be in position under the frame 65 to be raised, a screed 184 receiving and guiding, to rotation about an axis 186 parallel to the axis 137, a coaxial shaft 185 carrying itself in an integral manner, upwards, a bracket 187 intended to serve as a support to the intermediate breakdown on the one hand vertically downwards, and on the other hand in a horizontal direction in which the slope of the roof as well as the beam 103 is descending.

For this purpose, the bracket 187 has a flat wing 188, showing a free edge at the top of the slope near which it is secured, downwards, with tree 185, and down the slope a bearing edge jointly another wing 189 perpendicular to wing 188 and parallel to axis 186, rising from its connection with wing 188.

So that, whatever the slope of the beam 103 and the roof itself with respect to the horizontal, wing 188 can be placed horizontally and wing 189 vertically, to rest flat against the intermediate failure assumed to be vertical, or to present an orientation suitable to be applied flat against a breakdown having a different orientation compared to the horizontal, and for example an orientation perpendicular to the beam 103, means for adjusting the angle are provided 187 in orientation, around axis 186, in relation to scabbard 165, which will now be described.

These means comprise, on the upper wall 167 sheath 165, two rectilinear rods 190 radial in reference to axis 186 and parallel to wall 167, that is to say to the general direction of channel 169 and the beam 103. Each of these rods 190 presents, taking into account the slope it presents as well, an upper end facing up the slope and secured to the wall 167 by means of a respective stop 191 that this wall 167 carries securely in the immediate vicinity of its lower edge, that is to say its edge facing the bottom of the slope.

On each of these rods 190 is slidably mounted, with possibility of immobilization in any position set desired along the rods 190, for example via a respective clamping sleeve 192 on the rod 190, a respective eyelet 193 of a hoof 194 thus guided to the sliding relative to the wall 167 of the sleeve 165, the along the rods 190. Optionally, not visible to the figures, this guide of the shoe 194 can be supplemented by the engagement of a lug thereof in a fitted groove, parallel to the rods 190, in the upper wall 167 of the scabbard 165.

The shoe 194 is thus disposed between the bracket 187 and the stops 191, that is to say shifted down the slope relative to the square 187, and present towards this last, that is to say towards the top of the slope, a 195 pan plane, parallel to axis 186 and inclined with respect to the wall 167 so as to form an angle with it upwards preferably greater than 90 ° and for example of the order of 135 °, this figure being indicated only as an example not limiting. According to a mean plane of symmetry which coincides with that of the adjustable truss 136 and also constitutes a average plane of symmetry for the entire sheath 165 and the square 187, the pan 195 is hollowed out of a groove 197 in which engages a lug 196 that the bracket 187 carries jointly, down the slope, at the junction between its two wings 188 and 189. Respectively on both sides of the throat 197 is arranged in the shoe 194 a light 198 parallel to the pan 195 and in which a lug engages respective 199 of post 196, so that post 196 either guided along the light 198 and either likely to turn further on itself inside this light 198; for this purpose, the two pins 199 have advantageously a cylindrical shape of revolution around the same axis 200 parallel to the axis 186.

• dans une position limite du sabot 194, dans laquelle le oeillets 193 viennent buter contre les butées 191, les ailes 188 et 189 de l'équerre 187 soient respectivement parallèle à la paroi 167 et perpendiculaire à celle-ci, comme le montre la figure 17 dans la mesure où le dispositif 174 est identique au dispositif 163 à cet égard, ce qui permet d'adapter l'équerre 187 à une panne intermédiaire perpendiculaire à la pente du toit, c'est-à-dire perpendiculaire à la poutre 103, les ergots 199 du tenon 196 de l'équerre 187 étant alors placés à la limite des lumières 198 du sabot 194 la plus proche de la paroi 167,
• dans une position limite opposée du sabot 194, dans laquelle celui-ci est placé par son pan 195 à proximité immédiate de l'arbre 185, ce qui correspond à une position des ergots 199 du tenon 196 de l'équerre 187 directement adjacente à l'extrémité des lumières 198 la plus éloignée de la paroi 167, les ailes 188 et 189 de l'équerre 187 soient respectivement horizontale et verticale pour la plus grande valeur envisageable raisonnablement pour la pente du toit, c'est-à-dire également de la poutre 103, par rapport à l'horizontale, étant entendu que la figure 16 présente une position proche de cette position limite et correspondant à une valeur plus faible que la pente du toit, avec une orientation respectivement horizontale et verticale des ailes 188 et 189.

A skilled person will easily understand that by sliding the shoe 194 along the rods 190, it causes by cooperation between the lugs 199 of the post 196 and the lights 198 a pivoting movement of the bracket 187 around the axis 186 with respect to the sleeve 165. It falls within the normal abilities of a person skilled in the art to conform and size all of the elements carried by the upper wall 167 of the sleeve 165, as they have just been described under the numerical references 184 to 200, so that:

• in a limit position of the shoe 194, in which the eyelets 193 abut against the stops 191, the wings 188 and 189 of the bracket 187 are respectively parallel to the wall 167 and perpendicular thereto, as shown in Figure 17 insofar as the device 174 is identical to the device 163 in this respect, which makes it possible to adapt the bracket 187 to an intermediate breakdown perpendicular to the slope of the roof, that is to say perpendicular to the beam 103, the lugs 199 of the lug 196 of the bracket 187 then being placed at the limit of the lights 198 of the shoe 194 closest to the wall 167,
• in an opposite limit position of the shoe 194, in which the shoe is placed by its flap 195 in the immediate vicinity of the shaft 185, which corresponds to a position of the lugs 199 of the lug 196 of the bracket 187 directly adjacent to the end of the lights 198 furthest from the wall 167, the wings 188 and 189 of the bracket 187 are respectively horizontal and vertical for the greatest value that can reasonably be envisaged for the slope of the roof, that is to say also the beam 103, with respect to the horizontal, it being understood that FIG. 16 presents a position close to this limit position and corresponding to a value lower than the slope of the roof, with a respectively horizontal and vertical orientation of the wings 188 and 189 .

We will now refer to Figure 17, which shows a device 164 having great analogies with the device 163, as noted above, in the measure where we find identical and under the same numerical references all of the elements described in reference to FIG. 16, with the exception of device 178, then absent, and of an embodiment different from the articulation of the arm 174 around the axis 137 relative to the yoke 138 defined by the side walls 166 of the sheath 165.

Indeed, in the case of this embodiment of FIG. 17, the shaft 173 with axis 137 is integral with the arm 174 being guided in rotation about axis 137 relative to to the side walls 166 of the sheath 165, and bears integrally, outside the yoke 138 defined by these walls side 166, a coaxial pinion 201, in permanent engagement with a worm screw 202 that the corresponding side wall 166 door, to rotation about a parallel axis 203 to this wall 166, by means of a yoke 204. A outside of the yoke 204, the worm 202 is connected by a universal joint 205 to a shaft 206 which itself carries a handwheel 207, which allows you to rotate will, one way or the other, the worm 202 around its axis 203 relative to the yoke 204. Given of the permanent engagement of the worm 202 with the pinion 201, this rotation, in one direction or the other, is accompanied by a pivoting of the arm 174, and with it the entry 135, around the axis 137 relative to the sheath 165 and to beam 103, in the direction of opening or closing of the angle formed between them by beam 103 and the entry 135, which allows to adjust the slope of the beam 103 with respect to the horizontal while preserving the horizontality of entry 135, in order to adapt the slope of beam 103 to that of the roof. The irreversibility of its assured transmission by the mutual meshing of the pinion 201 and the worm 202 ensures immobilization of entry 135 and beam 103 in the relative orientation thus adjusted.

A skilled person will readily understand that the mode embodiment, which has just been described, of an adjustable truss 136 as well as its mode of cooperation, which also comes to be described, with the frame to be lifted 65 does not constitute that nonlimiting examples of means allowing to distribute the lifting efforts of the roof over the purlins at the gable walls, in the case of a double roof slopes, or at the level of the cross walls, in the case of a roof with two or four slopes, as well as ensuring that level the continuity of the dynamic belt previously described.

In particular, instead of being made up of I-sections, the beams 103 forming rafters and the 135 ties could be made in other forms, and for example be made up of tubes of circular section, the shape of cradles, channels, or other components or parts of components which cooperate with them being adapted accordingly, without difficulty, by a Man of job ; it could be the same for beams 94.

We could also refrain from reporting a such a farm under the frame 65 to be lifted as soon as level of gable walls and cross walls, we would act under each failure by means of a device according to the invention 63 respective, provided that you can synchronize with precision the operation of the various devices 63, at same title that we could dispense in certain cases of the beam connection 94 between the brackets 76 at the bottom of the roof slopes.

A skilled person will further understand easily than a set of horizontal beams completely encircling or partially the building whose roof is to be raised and based on consoles 76, for example through of 99 devices, could completely replace or partially to the brackets 85 and to the connecting beams 94 mutual to constitute the aforementioned dynamic belt either when the use of brackets 85 and beams 94 is made impossible by the conditions for setting up the device according to the invention, either due to a choice deliberate.

In addition, certain installation conditions of a device according to the invention 63 may require to use console 77 rather than console 76 illustrated in figure 10, which is identical to the console 76 in particular as to the possibilities of receiving one or more two brackets 85 and a device 99 or 139, but is in further shaped to receive, in solidarity but removable, for example by fitting and pinning, on its upper surface 104 and / or its front face 105 turned to the opposite of wall 3, corresponding respectively to faces 79 and 80 of the console 76, specific accessories 106, 107 removable securing of a respective frame element, including a farmhouse or a crossbowman, respectively, having ends cantilevered by relation to the wall 3. The configuration of these accessories 106, 107, for example fitted into the console 77 and retained by pinning, can vary to a large extent depending on the installation conditions and will not be further detailed, to the extent that it falls within the normal capabilities of a Tradesman. The upper face 79 of the console 76 could also be designed to receive the accessory 106 of receipt of a farm entry. We will observe that, for have a console 76 or 77 receive and carry an entry farmhouse not projecting sufficiently from wall 3, we can extend this entry by a metallic fur coming position on the upper side 79 or 104 of the console and attach to an accessory 106 suitably mounted on this upper face 79 or 104, not shown but easily understood by a person skilled in the art.

Consoles 76 or 77 of devices 63 depending on the invention being equipped with the most suitable means for cooperate with the elements of the roof frame 65 to be lifted, namely brackets 85 and / or devices 99, 139, 148, 155 associated with adjustable trusses 130 and / or accessories 106, 107, and after fixing the wall plates 1 on wall 3, directly or through a respective gauge 115, while respecting horizontality axes 19 as good as possible then vertical adjustment axes 56 and connection between the guide rods 64 corresponding to the various devices 63 by tie rods 74, 75, on the one hand, and between the brackets 85 and the cradles 102, respectively, by beams 94, 103, while the consoles 76, 77 occupy a position as low as possible on guide rods 64, being naturally arranged above the yokes 29, a lifting is caused simultaneous, synchronized from the different consoles 76, 77 on the guide rods 64 by pushing means, advantageously constituted by hydraulic 108 or electromechanical jacks, associated with common remote control means 111 to the lifting devices 63 to synchronize the lifting of the roofing by the various devices 63.

Each device according to the invention 63 comprises thus a single jack 108, removably mounted on the retaining plate 42, by threaded holes 54 distributed around the notch 50 thereof.

More precisely, each jack 108 comprising a body 109 and a coaxial rod 110, the body 109 is engaged in the coincident notches 50 and 22, respectively, the retaining plate 42 and the cradle 8 of the plate mural 1 and screwed, by a flange not illustrated, on the face upper 44 of the retaining plate 42 by the holes threaded 54 thereof, which ensures its positioning along axis 53, that is to say its perfect parallelism with respect to guide rods 64. Its rod 110, also thus arranged along the axis 53, is then placed in abutment upwards against console 76 or 77, from the underside such as 78 thereof to which this rod 110 is possibly fixed.

It will be observed that it is not necessary for the cylinders 108 have a rod stroke 110 as large as the height over which you want to raise the roof.

Indeed, if this stroke is less than the lifting height, we can first lift, from the position of the roof in which the frame 65 of it rests on the walls 3, bring the roof 65 in an intermediate lifting position, in which immobilizes the consoles 76 or 77 on the rods 64, provisionally, by engagement of keys in respective holes, not shown, then placed in coincidence mutual. We then lower the rods 110 of the cylinders 108 to insert between each of them and the console corresponding 76 or 77 a shim having a height corresponding to the initial lifting height. Then, after having separated the consoles 76, 77 opposite sliding along the rods 64, the lifting by means of jacks 108, to the desired height, repeating this operation if necessary. Once the desired height reached, we immobilize the brackets 76, 77 on the rods 64, for example by pinning as indicated above, and we can disassemble the cylinders 108 to assign them to another site, during that we complete wall 3, upwards, up to the frame 65 of the roof in its new position. Once the walls 3 thus completed, it is possible to disassemble the devices according to the invention 63. Alternatively, it is also possible provisionally support frame 65 with a framework waiting time, for example metallic or wooden, as soon as the desired height is reached, and then disassemble immediately the devices according to the invention 63 in their entirety, before completing wall 3; the waiting frame can then be disassembled, or even be integrated into the complement from the wall 3.

If necessary, a retention of the frame 65, downwards, in a succession of positions reached during lifting can also be obtained automatically, by cooperation of a snap device provided on each console 76, 77 with a rack parallel to the rods guide 64 and fixed relative thereto, and for example fitted directly along one of them, so not illustrated but easily conceivable by a Man of job.

It will be observed that a method of setting up has been described. work of the invention according to which the guide rods 64 are fixed relative to the sleeves 58 which receive them, while the brackets 76, 77 slide on the rods of guide 64.

The invention can also be implemented by providing that the guide rods 64 slide coaxially in the sleeves 58 and carry the consoles together corresponding 76 or 77. In such a case, the jacks 108 do not cause the consoles 76, 77 to slide on the guide rods 64, but an overall lifting of the brackets and guide rods, which slide in the sleeves 58 to provide the desired guidance. In such case, of course, the pins 35 must be removed during the lifting operations, and put back in place, then that holes provided on the rods 64 coincide with the lights 34 of the screeds 29, whenever we want interrupt the lifting and in particular when raising the cylinders 108 and at the end of lifting, during the raising of the wall 3. A latching device mounted on the holding 42 and cooperating with a rack of the indicated type previously can also be provided for this purpose.

This variant embodiment has not been illustrated, but it emerges from the normal aptitudes of a Man of profession taking cognizance of the above.

We will now describe another variant of the invention with reference to FIGS. 18 to 21. The components common to the previously described device will be assigned the same references.

Figures 18 to 21 show a wall 3 with its substantially vertical surface 112, which is here the exterior surface of the wall, it being understood that the lifting can also be fixed against an interior surface of this wall.

A lifting device, noted 300, is fixed to the wall 3 by support means which are essentially constituted by two basic components, namely a wall plate 301 and an intermediate support plate 308. It is advisable to note that in some particular applications, by example industrial buildings with a steel frame, the lifting device will be fixed to a pole and not to a wall, this then requires an adaptation relating to aptitudes normal of a skilled person for mounting on pole.

Wall plate 301 could be attached to the face 112 from wall 3 either directly by bolting or by through a template, as in the embodiment previously described. However, support has been provided here. direct from the wall plate 301 on a chain of the wall 3, that is to say on the upper face denoted 212 of this chain. For this purpose, the wall plate 301 has above a square 302 bearing on the face 212 of the chain of wall, the front face noted 303 of this square 302 presenting holes 304 used for the passage of fixing bolts 304.1 (shown only in Figure 21) anchored in the face 112 of the wall 3. In a variant (not shown), the unitary horizontal part of the square can be replaced by two independent support shoes, whose position by ratio to the vertical part is adjustable, allowing a wall plate orientation adjustment by mounting support shoes on a respective perpendicular horizontal axis to this vertical part: this is in particular interesting when supported on an inclined chain.

The wall plate 301 also has a pair vertical uprights 305 extending downward from square 302, and which have the particularity of forming a slide thanks to their U-shaped section whose opening is turned inward. In the lower part of each of vertical uprights 305 is provided a lower plate support, which may or may not be bolted to the wall 112.

The intermediate support plate 308 is it essentially formed of a front plate 311 and of two horizontal crosspieces 312 and 313 whose ends pass inside the vertical uprights 305 for a vertical sliding guide for this intermediate plate support 308. A system of holes could be provided and pins associated with the vertical uprights to have successive heights for the intermediate plate 308 support. However, here we preferred a mounting in suspension which allows a finer adjustment before initiating the proper lifting of the frame. To this end, the wall plate 301 has a crossbar above horizontal 307 in the center of which hangs a rod threaded 309 thus extending in the vertical plane of symmetry of the slide formed by the uprights 305, up to a low level close to the lower support plates 306. The upper cross member 312 and lower cross member 313 of the intermediate support plate 308 then have a hole central allowing the passage of the threaded rod 309, and the support of the intermediate plate 308 at the desired height is ensured by a visible lower locking nut 310 only in Figures 18 and 19. The front plate 311 has two pairs of brackets 314 below which are fixed by a respective wing 315, the other wing 316 extending projecting substantially perpendicular to the plane of the front plate 311. The wings 316 each have a hole 317, the holes being all aligned on an axis common 19, which we will see later that this axis is no other that the axis around which the connecting retaining plate pivots the guide means and the controlled means of thrust with wall plate 301. The upper cross member 312 of the intermediate plate 308 also carries two small hollow sections 321 extending in a direction parallel to that of the slide formed by the vertical uprights 305, and arranged symmetrically with respect to the median plane of the intermediate support plate 308. Each hollow profile 321 has an oblong light on its front face opening 322 whose function will be explained below. In a variant (not shown), we can arrange the attachment means 321, 322 on the back of a front plate 311 of greater height, between the horizontal crosspieces 312, 313 which are then more distant from each other: this reduces the overturning torque (thanks to lowering the fulcrum, and increasing the distance between the tear-off points in the slide), and also avoids having a through opening in the upper part profiles 321, which could be closed off with debris.

In case of pole mounting, the intermediate plate support 308 will be fitted with a clamping device adapted within the normal knowledge of Man loom, for example a self-clamping flange, the tightening torque increases with the load lifted (the load is then blocked in all directions thanks to upset corners and diamond-headed skates).

The lifting device 300 further comprises a holding plate 342 supporting the guide means 64 of the console 76, the latter means being produced here under the shape of two parallel rods, on which can slide the lifting console 76 parallel to its plane which is brought into contact with the lower edge of the frame 65, edge which is represented schematically by a line in dashed lines in Figure 18. Rods 64 could be received below in sleeves integral with the tray holding 342 as is the case in the mode of realization previously described, but we have provided here a variant according to which each rod 64 has below a portion 323 of smaller diameter, allowing a direct support of each rod 64 on the upper face of the retaining plate 342, this portion opening out from the face lower of said retaining plate and allowing a locking for example by means of a wedge 324, as well as this is shown in figure 18. The holding plate 342 further presents here a central notch 352 associated with the passage of the body 109 of the lifting cylinder 108, the rod 110 of said cylinder being represented only by its upper end in FIG. 18, pressing against the underside of the lifting console 76. In a variant (not shown), the console 76 may be formed of two sliding sleeves on the rods 64, joined by a housing connected below to the push cylinder rod and fitted a horizontal transverse axis on which a plate pivots adjustable tilt support: this is interesting for metal-framed industrial buildings, because the support plate can be linked directly, for example by bolting, to a horizontal or inclined beam of the frame. It will then be interesting to provide a plate additional guide at the top of the beam, cooperating with the vertical rods 64.

We can of course alternatively provide a other type of controlled means of thrust, for example under the shape of a screw jack actuated by a ratchet system pneumatically controlled, this cylinder, shown schematically at 108 'in FIG. 20, bearing at the center of the upper face of the retaining plate 342, in which case the aforementioned notch 352 becomes unnecessary. In Figure 21, there are 354 holes associated with the fixing of the jack 108 or 108 'by bolts (not shown).

According to a very advantageous characteristic of this embodiment of the invention, the device lifting 300 also comprises means for adjusting the plumb, denoted 325, and level adjusting means, denoted 335, these adjustment means 325 and 335 connecting the support means constituted by the wall plate 301 and the intermediate plate support 308 to the common connection means formed by the retaining plate 342.

The plumb adjustment was already provided in the mode previously described, in the form of a tilting around an axis by pressing on a cylindrical cradle. In this case, the means of adjustment plumb are arranged differently, which simplifies and considerably lighten the structure of the device.

Plumb adjustment means 325, better visible in the exploded view of FIG. 21, essentially comprise (in duplicate) a plumb adjustment element 326 and a plumb adjustment sheath 329. The setting element plumb 326 consists of a cylindrical head 327 and a threaded pin 328. The cylindrical head 327 is shaped to be received inside one of the two hollow profiles associated 321, so that the associated threaded axis 328 passes through the notched opening 322 extending projecting from the intermediate support plate 308. The adjustment sleeve plumb 329 has a threaded body 330 internally to screw onto the threaded pin 328, and a rear support flange 331 provided at the end of the sheath 329. At its front end, the sheath 329 has a shaped end 332, for example under the shaped like a hexagon, this end thus forming a operation to be able to rotate the sheath 329 around of its axis. Intermediate plate 308 thus presents means 321 for fixing the plumb adjustment means 325, which are here constituted by the hollow sections 321. When the assembly is assembled, we have a pair of elements 326 and associated sleeves 329, which cross the plateau of holding 342 in a substantially horizontal direction, in protruding through front openings 333 of said plate which are made oblong in a vertical direction of so as to authorize the angular movement corresponding to a plumb adjustment of the retaining plate 342. It will be noted that the fixing means 321 are arranged to allow a pivoting of the adjustment means 325 about an axis capable to be arranged horizontally and parallel to the surface 112 of the wall 3.

The level adjustment means 335 comprise as for them, also according to a pair, elements 336 of level adjustment and level adjustment sleeves 339. A level adjustment element 336 is provided here comprising a head 337 of articulation 337 surmounted by a threaded axis 338. For mounting the retaining plate 342 on the support means 301, 308, the articulation head 337 of each leveling element 336 is placed between a pair of brackets 314, and this head has an opening with axis 334 allowing the passage of a hinge pin 318. To facilitate the placement or removal of this post 318, here we have provided a larger post head 319 diameter which comes to bear against the outside face of a square of the pair of squares concerned, the other end of the stud crossing the opposite square and receiving a locking pin, and the post head 319 is further equipped with an operating handle 320 facilitating setting rapid positioning of said tenon. Each pair of elements 336 and leveling sleeves 339 crosses the plate holding 342 while coming out at the level of the upper face of this one by oblong passage openings 343, these openings being arranged in a direction parallel to the pivot axis 19 defined by the hinge pins 318. As with the plumb adjustment means, each level adjustment sheath 339 has a body 340 internally threaded to screw onto the 338 threaded axis, a support flange 344 at the lower end, and, at the other end, for example a hexagonal operating head 341.

FIGS. 18 to 20 also show, for the plumb adjustment means 325, a support washer 345 coming against the front face of the retaining plate 342 and held by a pin or circlip not shown associated with the adjustment sleeve 329, and, for the means 335 level adjustment, lower support shims 346 and upper 347, as well as a terminal support washer 348.

When the assembly is in place, the adjustment plumb is carried out by maneuvering the heads 332 of the sheaths plumb adjustment 329, which produces tilting desired around the axis 19 for the retaining plate 342, and therefore for the jack 108 or 108 ′ and the guide rods 64 supported by said holding plate. This plumb adjustment is shown diagrammatically by arrow 400 in FIG. will observe that, during a plumb adjustment, the lights oblong 333 do not interfere with the end of the adjusting means 325.

The level adjustment is carried out in an analogous manner, by intervening on one and / or the other of the two heads of maneuver 341 coming out of the associated oblong openings 343, this intervention aimed at turning one or both sheaths 339 operated in such a way as to vary the level of the holding plate 342, as shown by the arrows 401 in FIG. 18. We are thus assured, even if the support face 212 of wall 3 is not perfectly horizontal, to have a level adjustment by means 335 of adjustment which guarantees perfect horizontality for the upper side of the retaining plate 342, and therefore a perfect verticality for guide rods 64 and for the main axis of the actuated cylinder 108 or 108 '. As we could see, the intermediate support plate 308 has means 314, here in the form of brackets, for fixing the level adjusting means 335. In addition, these means of fixing 314 are arranged to allow pivoting of the level adjusting means 335 around the axis 19 which is can be arranged horizontally and parallel on the surface 112 of wall 3. It will also be noted that the 343 oblong passage openings allow travel angles of the retaining plate 342 during an adjustment level.

The invention is not limited to the embodiment which has just been described, but on the contrary includes all variant described in the claims.

In particular, the lifting device according to the invention can be used not only to raise the frame of an existing building, but also to lift the frame of a building under construction after installation in place of stabilized and braced straight posts. The device then makes it possible to maintain the frame at a intermediate stroke thanks to a clamping system within the normal knowledge of a skilled person: can then go up one level each time the means connection and thrust, consider a complete lifting of the frame from a low height (two meters from the ground for example) until its final positioning, which allows mounting of the frame at ground level where a significant time savings and a considerable decrease in risks for personnel operating on the construction site.

Claims (30)

1. A device for lifting a framework (65), and where appropriate a portion of a building resting on said framework (65), in particular a roof, relative to underlying walls (3), the device being attended for use with a plurality of such devices distributed around the framework (65), the device comprising:

   support means (1, 42, 115 ; 301, 308) suitable for being fixed to a substantially vertical surface (112) of a wall (3), in particular an outside surface thereof;

   a cursor (76, 77) suitable for being placed substantially vertically above the support means (1, 42, 115 ; 301, 308) and for co-operating with an element of the framework (65) resting thereon;

   guide means (64) for guiding the cursor (76, 77) in translation relative to the support means (1, 42, 115 ; 301, 308), in a direction that is capable of being oriented substantially vertically; and

   controlled thrust means (108) interposed functionally between the cursor (76, 77) and the support means (1, 42, 115; 301, 308) in a direction that is suitable for being oriented substantially vertically,

      the device being characterized in that the support means (1, 42, 115 ; 301, 308) include a wall plate (1 ; 301) common to the guide means and to the controlled thrust means (108), and common connection means (42 ; 342) for connecting the guide means (64) and the controlled thrust means (108) with the wall plate (1 ; 301), ensuring identical orientation therefor.
2. A device according to claim 1, characterized in that the connection means (42) include means (17, 48, 39, 41, 61) for adjusting said identical orientation.
3. A device according to claim 2, characterized in that the connection means (42) include a holding tray (43) for holding the guide means (64) and the controlled thrust means (108) in an identical orientation, and hinge means (17, 48) for hinging the holding tray (43) relative to the wall plate (1) about an axis (19) suitable for being disposed substantially horizontally and substantially parallel to said surface (112).
4. A device according to claim 3, characterized in that the connection means (42) further include temporary immobilization means (39, 41, 61) for immobilizing the holding tray (42) relative to the wall plate (1) within a determined range of relative angular positions about said axis (19).
5. A device according to any one of claims 1 to 4, characterized in that the support means (1, 42, 115) include an intermediate jig (115) for fixing the wall plate (1) to said surface (112), and suitable itself for being fixed to said surface (112) and for removably receiving the wall plate (1) in a determined relative position.
6. A device according to claim 5, characterized in that the jig (115) is suitable for being fixed to said surface (112) in at least one location that is offset from the wall plate (1) occupying said determined relative position.
7. A device according to any one of claims 1 to 6, characterized in that the controlled thrust means (108) are selected from a group comprising hydraulic jacks and electromechanical jacks, associated with remote control means (111) in common with other lifting devices (63) in order to synchronize a set of lifting devices (63).
8. A device according to any one of claims 1 to 7, characterized in that the controlled thrust means (108) are removable independently of the guide means (64).
9. A device according to any one of claims 1 to 8, characterized in that it includes means (35) independent of the thrust means (108) for temporarily immobilizing the cursor (76, 77) at at least one lift position that is determined relative to the common connection means (42).
10. A device according to any one of claims 1 to 9, characterized in that the guide means (64) include at least one guide rod (64) disposed along said direction and guided in translation therealong relative to the common connection means (42), and in that the cursor (76, 77) is rigidly secured to said at least one guide rod (64).
11. A device according to claim 10 in combination with claim 9, characterized in that the means for temporarily immobilizing the cursor (76, 77) include means (35) for temporarily immobilizing the at least one guide rod (64), against translation in said direction relative to the common connection means (42).
12. A device according to any one of claims 1 to 9, characterized in that the guide means (64) include at least one guide rod (64) disposed along said direction and immobilized against translation therealong relative to the common guide means (42), and in that the cursor (76, 77) is mounted to move in translation along said direction on said at least one guide rod (64).
13. A device according to claim 12 in combination with claim 9, characterized in that the means for temporarily immobilizing the cursor (76, 77) include means (35) for temporarily immobilizing the cursor (76, 77) against translation along said direction relative to the at least one guide rod (64).
14. A device according to claim 13 or 14, characterized in that the guide rod (64) is secured to a link box (67) at the end thereof, relative to the cursor (76, 77), that is remote from the common connection means (42), and at a distance from the common connection means (42) which is compatible with a predetermined maximum lifting stroke for the roof (65), the link box (67) providing links with ties (74, 75) for connection to the link box (67) of at least one other lifting device (63).
15. A device according to any one of claims 1 to 14, characterized in that the cursor (76, 77) includes mechanical link means (85, 94, 99, 136, 148, 155) for linking with the cursor (76, 77) of at least one other lifting device.
16. A device according to claim 15, characterized in that the cursor (76, 77) carries at least one cantilevered-out arm (87) perpendicular to said orientation and suitable for being placed in line with the arm (87) of the cursor (76, 77) of another lifting device (63) in an alignment that is substantially horizontal and substantially parallel to said surface (112), and rigidly connected to said other arm (87) by a rectilinear beam (94) disposed along said substantially horizontal alignment.
17. A device according to claim 15 or 16, characterized in that the cursor (76, 77) carries a link device (99, 139, 148, 155) for linking with a truss (136), in particular an adjustable truss, suitable for being placed beneath the framework (65) over a gable wall or a structural inside wall, and for being connected via a similar link device, to the cursor (76, 77) of at least one other lifting device (63).
18. A device according to claim 16 or 17, characterized in that the cursor (76, 77) includes level adjustment means (89, 90, 91, 92) for adjusting the level of said at least one arm (87) and/or of said link device (99, 139, 148, 155) in said direction.
19. A device according to any one of claims 16 to 18, characterized in that the cursor (76, 77) includes orientation adjusting means (89, 90, 91, 92) for adjusting the orientation of said at least one arm (87) and/or of said link device (99, 139) about an axis (84) oriented along said direction.
20. A device according to any one of claims 1 to 19, characterized in that the cursor (77) includes means (99, 106, 107) for adapting the shape of said element to the framework (65).
21. A device according to claim 1, characterized in that said lifting device further includes adjustment means (325) for adjusting verticality along said identical orientation and adjustment means (335) for adjusting, said means (325, 335) for adjusting verticality and level connecting the support means (301, 308) to the common connection means (342).
22. A device according to claim 21, characterized in that the support means (301, 308) include an intermediate support plate (308) mounted to slide along a substantially vertical direction in a slideway (305) secured to the wall plate (301), said intermediate plate having means (321; 314) for fixing to the adjustment means for adjusting verticality (325) and for adjusting level (335).
23. A device according to claim 22, characterized in that the intermediate support plate (308) is suspended by a threaded rod (309) from a cross-member (307) of the wall plate (301) so as to enable the height of said intermediate support plate (308) to be adjusted, and the wall plate (301) has at its top a bracket (302) to enable said wall plate to be supported directly on a wall tie beam (3).
24. A device according to claim 22, characterized in that the fixing means (321, 314) are organized to allow the adjustment means (325; 335) to pivot about an axis suitable for being disposed horizontally and parallel to the surface (112) of the wall (3).
25. A device according to any one of claims 21 to 24, characterized in that the common connection means include a holding tray (342) on which the guide means (64) and the controlled thrust means (108) are supported.
26. A device according to claim 25, characterized in that the holding tray (342) has the adjustment means for adjusting verticality (325) and for adjusting level (335) passing therethrough, and has associated through oblong openings (337; 343) allowing the angular displacements that correspond to said adjustments of verticality and of level.
27. A device according to any one of claims 21 to 26, characterized in that the adjustment means for adjusting verticality (325) and for adjusting level (335) comprise respective threaded shafts (328; 338) on which respective adjustment bushes (329; 339) are screwed.
28. A device according to claims 24 and 27, characterized in that the threaded shaft (328) of the verticality adjustment means (325) is secured to a cylindrical head (327) received in a hollow bar (321) forming the associated fixing means of the intermediate support plate (308).
29. A device according to claims 24 and 27, characterized in that the threaded shaft (338) of the level adjustment means (335) is secured to a hinge head (337) connected in hinged manner to the intermediate support plate (308) by a hinge pin (318) passing through brackets (315) forming the associated fixing means of said intermediate support plate (308).
30. A device according to claim 26 or 27, characterized in that each adjustment bush (329; 339) has an end head (332; 341) passing through one of the oblong openings (333; 343) and forming a drive member for performing the corresponding adjustments.

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