EP0784304B1 - Door, particularly for outside enclosure - Google Patents

Description

The invention relates to a door device, particularly well suited to equip, in particular, advertising or informative display boxes, or display cases, installed on the public highway.

The door devices intended to equip the display cases installed outside, for example on the public road, being exposed to bad weather, must have a good seal against water and dust, be easy to maneuver for their opening and closing, and of course be reliable, inexpensive, and allow good visibility object behind the door, such as a poster.

These advantages are very rarely brought together by known door devices, in particular because of the large number of parts that compose them.

Two relevant examples of display boxes are published in DE-U-8 813 016 and in DE-U-9 421 183. The latter document shows the state of the art closest to the invention, which is also represented in the preamble to the independent claim.

The object of the invention is to remedy these disadvantages and to this end relates to a device for door of the type comprising a frame and a leaf connected by solidarisation bodies, the frame comprising a frame comprising uprights and curved sleepers whose convexity is turned towards the outside, the leaf being elastically deformable between an open position in which it is not subject at no constraint and determines an access between itself and the door frame, and a closed position in which it is under stress against the door frame with a form curved.

According to the invention, this device is characterized in that the leaf is secured to the door frame on the outside of it on the one hand at means of fixed securing members distributed along amounts respectively of the door frame and the leaf and rigidly joining these two elements, and other part by means of removable securing members distributed along the respective opposite amounts of the door frame and the leaf, and comprising means for stress the leaf in traction towards circumferential and to press in radial direction beating it against the frame.

Thanks to the curved shape of the frame chassis doorframe, the door, for example hovers at rest, takes, in the closed position, itself a form curved ensuring a natural contact favorable to sealing. In addition, this curved shape gives the glazing, when under stress, good rigidity, great resistance to the forces exerted by the convex side to the concave side, and a good regularity on the surface of the glass; also, the curved shape, combined with the flexibility of the glazing when at rest, frees itself from the use of hinges.

• la figure 1 est une coupe transversale schématique d'un dispositif de porte selon l'invention, en position de fermeture,
• la figure 2 est une coupe transversale schématique du dispositif de porte de la figure 1, en position d'ouverture,
• la figure 3 est une coupe agrandie plus détaillée d'une partie du dispositif de la figure 1, représentant un mode de réalisation des organes de solidarisation fixe ;
• la figure 4 est une coupe agrandie plus détaillée d'une autre partie du dispositif de la figure 1, représentant un mode de réalisation des organes de solidarisation amovible ;
• la figure 5 est une vue semblable à la figure 4, le battant étant représenté à faible distance de l'huisserie ;
• la figure 6 est une vue semblable à la figure 4, la serrure étant représentée dans sa position ouverte ;
• la figure 7 est une vue partielle selon VII-VII à la figure 6 ;
• la figure 8 est une vue semblable à la figure 6, la serrure étant représentée dans sa position fermée ;
• la figure 9 est une vue partielle suivant IX-IX à la figure 8.

Other characteristics and advantages of the invention will emerge from the description which follows of an embodiment of the invention given by way of nonlimiting example and represented in the attached drawings in which:

• FIG. 1 is a schematic cross section of a door device according to the invention, in the closed position,
• FIG. 2 is a schematic cross section of the door device of FIG. 1, in the open position,
• Figure 3 is a more detailed enlarged section of a portion of the device of Figure 1, showing an embodiment of the fixed fastening members;
• Figure 4 is a more detailed enlarged section of another part of the device of Figure 1, showing an embodiment of the removable securing members;
• Figure 5 is a view similar to Figure 4, the leaf being shown at a short distance from the frame;
• Figure 6 is a view similar to Figure 4, the lock being shown in its open position;
• Figure 7 is a partial view along VII-VII in Figure 6;
• Figure 8 is a view similar to Figure 6, the lock being shown in its closed position;
• FIG. 9 is a partial view along line IX-IX in FIG. 8.

The device according to the invention illustrated by the Figures 1 to 4, in section along a horizontal plane in the embodiment shown, includes a frame 1 fitted with a framework frame which can be in one or more pieces, consisting of two uprights 11a, 11b and two crosspieces 12 connecting the uprights. While the uprights 11a, 11b are preferably straight and parallel, the crosspieces 12 are curved for example in the form of arcs of circles extending in two parallel planes, so that the chassis extends over a portion of surface cylindrical in this case with cross section approximately circular with convexity outward facing.

It also includes a door leaf 2 provided a frame of flexible elastically deformable material can be a synthetic material or an alloy metallic or even a metal, for example from aluminum, plane at rest (Figure 2), made up (Figures 3 and 4) of two uprights and two crosspieces connecting the uprights, here parallel two by two, and at least one window 23 consisting of a sheet of synthetic material also flexible and deformable elastically, flat at rest, secured to the frame and extending inside thereof; matter constituting the glass 23 is for example polymethyl methacrylate (PMMA); the side edges of the glass 23 are inserted with clearance between the wings parallels of rebates 24a, 24b of the leaf frame, extending along parallel uprights normally approximately vertical to it, or constituting as here these amounts, deep enough that the glass and the rebate can slide together freely against each other during bending allowing the frame of leaf 2 to follow the shape curved frame structure of the frame 1 or by following their differential expansion. These rebates have a U-shaped cross section, both of which parallel branches 25, 26 are of unequal length, the longest branch 26 being on the outer side of the door.

The rebates 24a, 24b are joined to their ends with strips 27 protecting the edges corresponding transverse of the window 23. These strips do not significantly change the flexibility of the glass 23.

The device also includes fixed attachment of door leaf 2 to the chassis the frame 1, each fixed on these two elements and distributed along one of the uprights 11a, 24a thereof (Figure 3), and removable securing members from the leaf to the chassis, at least one of which is fixed to the chassis and at least one other is fixed to the leaf (figure 4).

The fixed fastening members include bolts 31 whose rod crosses the two wings of the rebate 24a and the window 23 inserted between them, with a clearance, as well as the upright 11a of the frame, and nuts 32 screwed respectively around the rod each bolt 31 so as to pinch the assembly between the bolt head and nut, leaf 2 and frame door frame 1 being braced with silicone seals 5 very flexible tubulars forming part of the frame and running along the two uprights 11a, 11b and upper and lower cross members 12 of the framework this one; for this purpose, the uprights and these crosspieces of the door frame each have a slide 13 opening opposite the leaf 2 and having lateral edges folded towards each other so as to constitute retaining means for a heel 51 with which the tubular joint 5, which heel is inserted into the slide 13 by one end and positioned longitudinally therein by sliding.

The removable securing members are consisting of a group of organs carried by the rebate 24b of the leaf and by the amount 11b of the frame opposite to those carrying the joining bodies fixed, or of several groups distributed along this rebate and this amount, respectively. Each group comprises on the one hand a cylinder 41a of lock 41 threaded through the two wings 25, 26 of the rebate 24b and the glass 23 inserted between them, pinched between members 42 such as nuts and / or washers immobilized around the cylinder, this cylinder 41a containing a barrel to which a finger is secured pivoting 43 extending prominently towards inside the box and itself carrying a bolt 44 pivoting directed radially, and on the other hand a keeper constituted by a core 48 of the upright 11b of the frame. The upright 11b also includes a slide 13 for a silicone seal 5 at heel 51 as described more high. The bolt 44 is pivotable here by a quarter turn between an open position shown in Figures 6 and 7 in which it is arranged opposite an opening 47 of a core 48 of the upright 11b and a closed position shown in Figures 8 and 9 in which it is face of core region 48 forming strike plate, side internal housing, for locking.

When unlocking, thanks to the curved shape of the frame structure of the door frame, to the shape normally flat at rest of the deformable leaf elastically due to the choice of materials constituting its frame and its glass, and in the mode of rigid connection without hinges adopted for the upright 11a, 24a opposite to that 11b, 24b carrying the latch, leaf 2 returns elastically to its shape plane 2a by automatically determining a space of access to the interior of the box between itself and the door frame, likely to be further increased in bending the leaf in the opposite direction to the framework frame (long dashed lines 2b on the figure 2), usable for the passage of the person attendant for placing or removing a poster or decor, or cleaning the interior of the box.

On the other hand, for closing, the leaf is applied against the frame frame by deformation elastic, the lock (or locks) 41 acting by radial mode (arrow 56) for locking and in axial (arrow 55) for compression of seals, made of a drawing action obtained by the coming in end stop 44a of the bolt 44 of the lock 41 on the wall 46 substantially perpendicular to the core 48 during of the bolt rotation 44.

More specifically, we will now describe with reference to FIGS. 5 to 9, what happens during closing the leaf and locking the locks 41.

In the position shown in Figure 5, the leaf 2 is close to its closed position, the amount 24b being in the vicinity of amount 11b frame correspondent. In the event that the uprights 24b, 11b are vertical and where the cutting plane transverse is horizontal, the bolt 44 is in a substantially vertical position to be able to penetrate in the opening 47, which extends vertically, formed in the core 48 of the upright 11b. A handle 58 adapted to engage with lock 41, is intended to provide the necessary torque closing the lock 41 and the bolt 44.

the handle 58, of any known type, for example has at its free end an opening square section female adapted to engage with a male element, not shown, of square section corresponding to lock 41.

In the position shown in Figures 6 and 7, leaf 2 is substantially against the upright 11b of the door frame. The end 44a of the bolt 44 has penetrated by the opening 47 of the core 48 of the upright 11b, and has passed substantially inward of the inner face 48a of this soul 48.

The lock 41 is preferably a latch with commercially available compression which is manufactured for example by the American company SOUTHCO. We know that such a compression latch, actuated by a tool such as the handle 58, allows, by a rotation about a quarter turn (75 ° rotation in some known models) to bring together by an effect of cam the free end 44a of the bolt 44 of the body 41a of the lock from a distance of the order of several millimeters, for example from 4 to 6 mm.

Figures 8 and 9 show the amounts 11b and 24b and the lock 41 in the closed position of the latter. This closed position was obtained by the rotation of a quarter turn (arrow 54) of finger 43 and the bolt 44 of the lock 41. In this rotation, the bolt 44 is brought closer to the body or cylinder 41a of the lock 41, as shown by arrow 55 at the figure 8. The end 44a bearing on the surface 48a of the core 48 thus exerts on the lock 41 and the upright 24b of wing 2 an opposite force shown by arrow 57, which presses leaf 2 against joint 5. Due to the substantially Z shape of the bolt 44, this force 57 is elastic and is compensated by the crushing of the seal 5 and by the support at the end of the stroke, from amount 24b to amount 11b.

Also, during this quarter shift about a turn, the end 44a of the bolt 44 is supported on the wall portion 46 directed radially by compared to the door frame, and thus exercises on the lock 41 and the amount 24b a force in direction circumferential or tangential, represented by the arrow 56, which exerts traction on the upright 24b towards the outside and which puts tension on the window 23. The movement of lock 41 in tangential direction can represent several millimeters, for example 6 to 8 mm.

Note that the internal wing 25 of the uprights 24a and 24b, which is shorter in the direction transverse as the outer wing 26 of the same uprights, allows the glass to be directly in contact with the seal 5 and pressing on it in the closed position leaf 2.

The elastic bending of the door against the frame structure with convex profile ensures, thanks to the compression of flexible tubular silicone seals extending along the four sides of the chassis, a natural contact favorable to sealing, and this the absence of a lip seal or the like.

The extremely simple structure described above, which allows direct support of the seal on the inner surface 23a of the glass 23, allows the use of a simple, economical flange seal, resistant and reliable and avoids all other types of seals fragile, for example with lip. In addition, the contact direct from the gasket and the glass 23 makes it possible to remove any joint between the glass 23 and the rebates 24a, 24b and the strips 27 constituting the frame of this window 23.

In case of rain, water can eventually penetrate the vertical rebates, but it is then drained down, the depth of the rebates being sufficient so that this water is not brought to bypass the glass, the device being more intended to allow a natural flow of water, that his restraint.

In addition, the bending of the glass gives it good rigidity and regularity favoring good visibility of the poster or more generally of the object placed in the box.

Of course, the invention is not limited to the embodiment described and shown above, and we can provide other forms without leaving its frame.

You can remove the banners 27 and the rebates 24 or replace them by means equivalent. You can replace the compression latch by equivalent means making it possible to exercise times a tensile force 56 in tangential direction outward and a pressing force 57 pressing the glass 23 on the gasket 5.

For a regular tension of the glass 23 in closed position, a bolt 31 and a lock 41 per meter along the uprights 24a and 24b.

Claims (10)

1. A door system of the kind comprising a frame (1) and a leaf (2) connected by securing means (31, 32; 41, 42, 43, 44), the frame having a skeleton comprising uprights (11a, 11b) and curved cross-members (12) with their convexity facing the exterior, the leaf (2) being resiliently deformable between an open position in which it is not subjected to any stress and gives access between itself and the frame (1), and a closed position in which it is under stress against the frame and has a curved shape with interposition of a seal (5), characterised in that the leaf (2) is secured to the frame (1) on the outside thereof, on the one hand via fixed securing means (31, 32) distributed along the uprights (11a, 24a) of the frame (1) and the leaf (2) respectively and rigidly securing the said two components, and on the other hand via movable securing means (41, 42, 43, 44) distributed along the respective facing uprights (11b, 24b) of the frame (1) and the leaf (2) and comprising means for pulling the leaf (2) in the circumferential direction (56) and pressing the leaf (2) in the radial direction (57) against the frame (1).
2. A door system according to claim 1, characterised in that the leaf comprises at least one pane (23) made of flexible and resiliently deformable material.
3. A door system according to claim 2, characterised in that the edges of the pane (23) are inserted with clearance between the sides (25, 26) of rebates (24a, 24b) constituting the uprights of the leaf (2).
4. A door system according to any of claims 1 to 3, characterised in that the frame (1) comprises a flexible seal (5) adapted to change shape when the leaf (2) is stressed against the frame.
5. A device according to any of claims 1 to 4, characterised in that the leaf (2) extends approximately in one plane when at rest.
6. A device according to any of claims 1 to 5, characterised in that the fixed securing means comprise at least one bolt-type component (31) and one nut-type component (32).
7. A door system according to any of claims 1 to 6, characterised in that the movable securing means (21, 22, 23, 24) comprise at least one quarter-turn type lock (41) fixed to the upright (24b) of the leaf (2) and comprising a pivoting axial lug (43) bearing a radially extending latch (44).
8. A door system according to claim 7, characterised in that the end (44a) of the latch (44) when in the closed position bears against a radially extending wall part (46) of the upright (11b) so as to pull the leaf (2) in the circumferential direction (56) when the lock (41) pivots through a quarter-turn in the closing direction (54).
9. A door system according to claim 7 or 8, characterised in that the quarter-turn type lock (41) is of the compression type so that when in the closed position the upright (24b) of the leaf (2) is pressed in the radial direction (57) towards the interior against the seal (5) of the upright (11b).
10. A system according to any of claims 1 to 9, characterised in that the seal (5) is placed in a position on the frame (1) such that it is directly in contact with the inner surface (23a) of the pane (23) when the leaf (2) is in the closed position.

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