EP1090205B1 - Lifting gate - Google Patents

Abstract

An upright for a goods-handling door, said upright including a slideway (1) and being formed in one piece by extrusion or in two mutually snap-fastenable pieces. The upright includes a plane surface (14F) serving to be placed against a wall, so as to position the door and the slideway appropriately, so that space is left on either side of the door for receiving the curtain if it comes out of the slideway.

Description

The present invention relates to the handling doors.

Handling doors are the doors installed in factories, warehouses, sheds, shops, etc. to enable communication and ensure isolation for temperature and noise, between different volumes or vis-à-vis outside.

In general, they must be able to be opened and closed clearing or closing a bay formed in a wall, to allow the passage of persons and vehicles, and limit the duration of opening during which the isolation is no longer insured.

One type of these doors has a panel that can go up and down between two amounts. In a usual embodiment, a door has a curtain which can curl or collapse at the top (or on either side of the bay), the curtain can generally be a flexible sheet, or be formed of panels articulated. A rotary shaft is arranged for example above the bay, to wind the curtain, or straps for lifting the curtain. The curtain is usually reinforced by least a rigid bar, the ends of which slide with the edges of the curtain in vertical rails (possibly horizontal) arranged in the uprights, or formed by them.

The slides are used to guide the edges of the curtain and to ensure the best sealing possible.

The present invention relates to an amount or a slide for this kind of door. Known slideways are made of folded sheet metal and mechanical welding or may be made by extrusion (see e.g. German patent applications ^Nos. 74 11596, 74 12450 and 13 279 295). It is usually necessary to bring the slide on carrying posts, to fix the uprights or the slides to a console or a crossbar at the top, to weld a plate to receive the driving organs and to fix the bottom to a base. The blank must be stripped and painted.

The invention relates to an amount carrying a slide, or a slide multifunctional, simpler, more precise, faster and more economy while having superior rigidity and strength. The invention also for object a door built with such amounts.

FIG. 13 is a perspective view of a curtain-type handling door collapsible of a fairly general classic kind, placed against a wall 10, to seal or clear a bay formed in this wall between two interior volumes or between a volume inside and outside. It comprises a curtain 61 moving between uprights 62, 63, containing slides in which the edges of the curtain move, as well as the ends of stiffening bars 64. The bars 64 are housed in sleeves horizontal formed in the curtain. Amounts 62, 63 are collected at their parts by a horizontal crossbar 65. The uprights and / or the cross are fixed on the wall by any appropriate means. The horizontal top edge of the curtain is attached appropriate way inside the transom. The movement of the curtain is ensured by vertical straps 66 whose lower ends are attached to a bar of lower stiffening 67 itself fixed along the lower horizontal edge of the curtain, which, in the closed position, rests against the ground, or is nearby.

To raise the curtain, the straps can be wound on a tree arranged 65. The shaft is driven by an electric motor, and a electrical installation makes it possible to realize the various movements and automatisms of the curtain. To drive the various bars, the straps pass in stirrups 68 fixed at the bars 64, windows being provided in the sleeves of the bars 64 to leave take out the stirrups. Well known devices can be provided to control automatically opening the door when approaching a vehicle.

He is known in particular by the German Utility Model 7 411 596 amount with a slide, the amount being constituted by two elements that can be made by extrusion. This amount being formed with grooves and ribs for various fasteners: fastening together the two elements of the upright, fastening strips sliding to protect the slide from wear and promote sliding.

The present invention relates to a door amount of handling according to claim 1.

In an advantageous embodiment of the invention, the amount has a closed section, defining an interior volume that can receive accessories, various organs, such as, for example, electrical wires, controls, pipes, cables, a counterweight.

According to one characteristic of the invention, the amount is realized in a single surgery. We prefer an operation that realizes the amount completely and permanently to the use and mounting ratings: extrusion, pultrusion, spinning, rolling, thermoforming, continuous forming, stamping.

In one embodiment of the invention, the amount is obtained by assembly or snap-fastening of at least two parts of which at least one is obtained by a single operation.

According to a feature of the invention, at least one of the parts is obtained extrusion, pultrusion, spinning, rolling, thermoforming, continuous forming, stamping.

The invention also relates to a door comprising at least one such amount, preferably two symmetrical amounts. Advantageously, such a door comprises for each amount a base to directly receive the amount in support against the ground.

In an interesting application, the door panel has at least one curtain comprising at least two flexible sheets juxtaposed vertically together between them by a stiffening bar, at least one edge of each sheet forming a horizontal oversize and the bar with two channels that open on the outside by a slit with close edges to hold the thickened edges of the edges of each sheet.

When the panel has one or two soft curtains, the wall of the slide may have a thickness such that the outer face of this wall is substantially in the plane of the curtain.

In one embodiment, the panel comprises at least one flexible curtain, reinforced by at least one horizontal bar whose end is provided at its end a guide shoe having a guide pin provided for penetrating and slide in the slide, and at least one slide stop arranged to slide against the outer surface of a wall of the slide. The guide pin can be equipped with a roller.

Other features and advantages of the invention will become apparent during the description which follows, given by way of non-limiting example with reference to the accompanying drawings, and which will make it clear how the invention can be realized.

• la figure 1 est une vue en coupe d'un exemple de montant multifonctionnel conforme à la présente invention,
• la figure 2 est une vue en perspective d'un élément conforme à la figure 1,
• la figure 3 est une vue en coupe partielle d'une variante,
• la figure 4 est en vue en coupe partielle d'une autre variante,
• la figure 5 est une vue en perspective d'un piétement pour un montant selon la présente invention,
• la figure 6 représente en coupe par un plan horizontal une autre forme de montant selon l'invention,
• la figure 7 est une coupe par un plan horizontal représentant en section deux montants appliqués contre un mur sur chacun des deux bords d'une baie,
• la figure 8 représente en coupe par un plan horizontal encore une autre forme de montant selon l'invention,
• la figure 9 est une vue en perspective de l'extrémité d'une barre de raidissement d'un rideau, avec des morceaux de rideau de part et d'autre,
• la figure 10 est une vue de dessus de l'extrémité d'une barre de raidissement de rideau, munie d'un patin de guidage, adapté à la glissière de l'invention,
• la figure 11 est une vue en plan d'une variante de patin de guidage,
• la figure 12 est une vue en coupe par un plan horizontal d'un bord d'une porte, au-dessus d'une barre de raidissement, avec une partie arrachée, et
• la figure 13 est une vue en perspective d'une porte de manutention classique.

On the drawings:

• FIG. 1 is a sectional view of an example of multifunctional upright according to the present invention,
• FIG. 2 is a perspective view of an element according to FIG. 1,
• FIG. 3 is a partial sectional view of a variant,
• FIG. 4 is a view in partial section of another variant,
• FIG. 5 is a perspective view of a base for an amount according to the present invention,
• FIG. 6 represents in section through a horizontal plane another form of post according to the invention,
• Figure 7 is a section through a horizontal plane showing in section two uprights applied against a wall on each of the two edges of a bay,
• FIG. 8 represents in section through a horizontal plane another form of post according to the invention,
• Figure 9 is a perspective view of the end of a stiffening bar of a curtain, with pieces of curtain on both sides,
• FIG. 10 is a plan view of the end of a curtain stiffening bar, provided with a guide shoe, adapted to the slide of the invention;
• FIG. 11 is a plan view of a variant of a guide shoe,
• FIG. 12 is a sectional view through a horizontal plane of an edge of a door, above a stiffening bar, with a part torn off, and
• Figure 13 is a perspective view of a conventional handling door.

The slide 20 shown in FIGS. 1 and 2 is constituted in this example of two pieces 1 and 2 extruded, provided with ribs allowing assembly by snap. Piece 1 forms a rigid upright due to its curved shape and folds. A part of the amount, between the zones marked A and B, has in section horizontal a W shape whose angles are rounded or the shape of two U juxtaposed whose adjacent legs are joined to their upper parts by a 4C bar, forming the bottom of the slide, the two U leaving between them the width required for guiding the edge of the curtain. The two Vs constituting the W constitute each wall 4A, 4B of the slide 4. These walls have inner faces 14A and 14B and outer faces 14D and 14E. The slide can have the bottom open or closed. In this example, the bottom 4C of the slide is closed. The inner faces 14A and 14B have a substantially uniform distance between them and delimit a volume of sliding for the edge of the movable panel of the door. This sliding volume defines a sliding plane, which is substantially the plane 16 of the door panel (FIG 7), when this sign came down. In this example, the walls of the slide have a significant thickness and are hollow. The outer faces 14D and 14E of the slideways define sliding planes useful for certain elements of the panel, for example example of the reinforcing bar ends of the panel or elements of guide. We will see later the importance of this provision. Exhibit 2 forms a cover. Advantageously, according to the present invention, there is a cleaning between the amount and the hood a free volume sufficient to allow the movement of a counterweight 3. When manufactured by extrusion, the profiles can be produced in large lengths, and cut to order. They can be light alloy, aluminum, plastic material. We thus have light pieces, of good resistance, not sensitive to the corrosion, which does not require treatment or painting, which is economical manufacturing and maintenance. But, without going beyond the invention, the amounts can also be made by other processes such as pultrusion, spinning, rolling, thermoforming, continuous forming or stamping. It is advantageous to apply a method which allows the amount to be manufactured in a single operation or if it consists of two parts, at least one of these parts.

In the example shown in FIGS. 1 and 2, the amount is formed with a 14F flat surface, parallel to the plane of the movable panel of the door. This flat surface 14F is intended to be placed against the wall, on the edge of the opening of the bay, that the door is used to seal or clear. This surface is placed at a distance d from the surface 14E of the adjacent slide wall and the central edge 14G of this surface is located at a distance e sufficient from the opening of the slide to release between the planes of these two surfaces 14E and 14F a volume 15 for receiving the edge of the panel when it is out of the slide (see Fig. 7).

The slide is cut to the desired length and standing on a base, advantageously molded which may be of the type shown at 11 in FIG. has a base 12 and a vertical profile 13 adapted to receive the slide on the outside 1, 2. There is no hole or weld to do: you gain in speed while avoiding mistakes. There is no need to worry about painting, not about making maintenance. We avoid the approximations of the mechanosoldering technique, which frequently lead to rework, drilling, etc.

In an alternative embodiment of the invention, provision can be made in the one and / or the other part of the slide a groove for attaching an accessory, itself profiled or not. In the partial view of Figure 3, two grooves 5, 6 are provided. In the application where the panel is formed of a curtain that folds accordion to the party superior, it is advantageous to provide, on one side of the slideway, a wall which push back the folds of the curtain on the other side. There is shown an extruded part 7 snapped into the groove 5 formed on an outer edge of the slide, a bar 8 of the curtain and folds 9 which accumulate on the opposite side to the extruded part. The slide according to the invention can therefore be used for a roll-up door in which the curtain is wound on the winding shaft, or for a folding door, or accordion.

Grooves can be provided at different locations, to fix on the slide any accessory such as a control cabinet, a release zipper counterweight, etc. For example, a sealing strip can be housed in such a groove, arranged so that the strip bears against the curtain in the lowered position to seal.

FIG. 4 shows, on a partial section, an application of the slide according to the invention to a security system. The sliding cavity 4 constituted by its sides 14A, 14B and the bottom 4C, is cut vertically, and after cutting, is replaced in its place by means of flexible fasteners 17, 18. The cavity thus acquires a some elastic mobility around a central position. With electrical contacts appropriate, can be detected a force exerted on the slide by the curtain and thus detect a strain on the curtain. It is then possible to transmit an alarm signal and trigger a command, for example raising the curtain, stopping the descent and lift, siren alarm, etc.

The shape of the walls of the slide, with a certain gap between the two faces 14A and 14D, or 14B and 14E of the same wall has for a first object to confer the rigidity, both at the walls of the slide and the entire amount. The wall of a slide can also be full and have a reduced thickness as shown on Figure 8, if the overall dimensions of the door to accept it. The amounts shown in Figures 6 and 8 can also receive a counterweight in the volume 15, behind the slide and this volume can possibly be closed by a cover. The amounts of Figures 1 and 6 each have a flat surface 14F, provided to be applied against the wall, on the edge of the opening, in order to position the slide 4 so as to leave clear a volume 15 to receive the curtain, when it came out of the slide, on the side of the wall. The amount shown in section in FIG. does not have such a flat surface. For this amount, the positioning is determined by the edges 21, 22 of the two longitudinal edges 23 and 24, which are applied against the wall 10.

As can be seen, both in FIG. 1 and in FIGS. Slider walls protrude from the body of the upright. This leaves cleared outer faces 14D and 14E of the walls of the slide. The outer face 14E of the slideway, on all embodiments, must remain unobstructed, over a distance corresponding at least to the depth of the slide, to define the volume 15 of reception of the curtain, when it came out of the slide, on the side of the wall. Similarly, the face 14D, the opposite side to the wall must also remain unobstructed, to allow receive the edge of the curtain, when it came out the opposite side to the wall.

When at least one wall of the slide has a certain thickness, this provision can be put to use to use curtains whose edges can apply against these faces, or whose ends of the reinforcing bars may have sliding or guiding members against these faces.

An embodiment of a door is partially shown with regard to Figures 9, 10 and 12. Figure 9 shows in perspective the edge of a curtain at near the end of a reinforcing bar.

The bar 30 is a plastic profile, remarkable in particular by two channels 35, 36 which open on the outside by a narrowed slot, with close edges, provided to receive and retain thickened edges 37, 38 of strips 31A, 31B of the curtain. In this example, the curtain may consist of several strips of flexible sheets 31A, 31B arranged horizontally and joined to each other via stiffening bars. On the horizontal edges, the strips have a thickness 37, 38. This can be obtained by means of a rod, surrounded by the edge folded of the band. One can thus engage an edge of a band in a channel 35 or 36 a stiffening bar. The edge can not be released if you exercise on the band a steering traction force perpendicular to the bar.

To ensure the guidance of the curtain, sliding pads 40 adapted to the slide according to the invention are attached to the ends of the bars. This skate includes four functional parts: a base 43 (Figs 10 and 12) that carries the other three parts: a guide pin 44, 58 provided for penetrating and sliding in the slide 4; a bar support tip 45 shown in phantom, for receive a bar, provided at each of its end faces with a cavity 39 (FIG 9) to receive said tip, and a slide catch 46, which in cooperation with the pin 44 and sliding against the outer face 14D of the wall 4A of the slideway, ensures precise guidance of the bar 30 and the edge of the curtain 1 (see Fig. 12). Incidentally, the base 13 of the guide shoe can be reinforced for example by a or two squares.

Advantageously, the wall 4A of the slide has a thickness such that the face 14D exterior of this wall is approximately in the plane 16 of the curtain. This is obtained by horizontally shifting the plane of the curtain, with respect to the axis of the slide. So, it can be seen in FIGS. 10 and 12 that the channel 35 for housing the curtain is substantially aligned with the outer face 14D of the slide. When using this provision, the The edge of the curtain 31A (Fig. 12) can then extend beyond the end of the bar and come to be placed, when the curtain is stretched, that is to say in the low position, against the said 14D surface which provides a good seal of the door. The base 43 of the skate slip can be placed in height between the bottoms of channels 35, 36 or be formed with one or two indentations to receive the thickened edges of the curtain panels, which protrude beyond the ends of the bars. The lower edge of pan 31A can also be engaged in a channel formed on the slip stop 46.

In FIG. 10, the curtain is placed on the side of the outer face 14D of the slide, away from the wall. However, with the arrangement according to the present invention, the curtain could be placed on the other side of the slide, against the outside face 14E of the slide adjacent to the flat face 14F of the upright, placed against the wall, since space 15 enough to accommodate the curtain is reserved between the outer face 14E and the wall 10. Figure 11 shows in plan a guide shoe 150 which offers the possibility of place two curtains in the same amounts with the same slides. This skate comprises a base 51, a guide pin 52, two rod support ends 53 and 54 and two sliding catches 55 and 56. It can advantageously be realized with a plane of horizontal symmetry, which simplifies the assembly of the door.

It is thus possible to use a shoe adapted to receive two bars, with a curtain in two layers, called double skin. In a manner known per se, the lifting straps can be arranged between the two sides.

FIG. 12 represents a variant of the sliding shoe in which the ankle of guide is constituted by a roller 58, rotatably mounted on an axis 59 fixed on the base of the skate. The roller can thus roll against one or the other of the inner faces 14, 14B of slide 4. This reduces wear and noise. The roller can be easily replaced.

Claims (6)

1. Upright (1) for a goods-handling door comprising a flexible panel able to move up and down between two uprights, said upright comprising

   a guide rail (4) for guiding one edge of the panel, the guide rail (4) being defined by two walls (4a, 4b), each wall having an external face and an internal face, the two internal faces defining between them a slide volume, centred on a slide plane and

   a bearing surface (14f) capable of being applied against a wall such that the slide plane is parallel to said wall, characterised in that

   the walls (4a, 4b) have the shape of two juxtaposed U shapes of which the adjacent branches are joined to one another by a web (4c) and

   the external surface (14e) of one of the walls (4b) defines, with the plane passing through the bearing surface (14f), a volume (15) allowing the edge of the panel to be received when said edge is disengaged from the guide rail (4).
2. Upright according to claim 1, characterised in that a cover (2) is fixed on the upright (1) and creates therewith a free volume capable of receiving accessories, such as a counterweight (3), controls or ducts.
3. Goods-handling door comprising two uprights (1) according to one of claims 1 to 2 and a flexible curtain comprising at least one stiffener bar (30), characterised in that a guide shoe (40) is fixed to each end of at least one stiffener bar (30) placing the plane of the curtain substantially in the plane passing through the external faces (14d) of the walls (4a) of each of the uprights (1).
4. Goods-handling door according to claim 3, characterised in that the guide shoe (40) comprises a base (43) carrying

   a guide element (44, 58) capable of penetrating and sliding in the guide rail (4)

   an end piece (45) capable of engaging in a cavity (39) made in the end of a stiffener bar (30)

   a slide tab (46) sliding against the external face (14d) of the wall (4a).
5. Goods-handling door according to claim 4, characterised in that the guide element is a peg (44).
6. Goods-handling door according to claim 4, characterised in that the guide element is a roller (58) rotatably mounted on a pin (59) fixed on the base (43) of the guide shoe.

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