EP1533464B1 - Profiled guiding device for limiting air leakage of an industrial screen door - Google Patents

Description

The present invention relates to a guiding device for an industrial building handling door comprising a flexible curtain, horizontal stiffening crosspieces and drive means for rapidly moving the flexible curtain between a closed position and a position. opening.

It is known from the patent FR 2 804 160 a guiding device comprising on the upright and opposite uprights of the door semi-rigid blades which are arranged opposite one another to form on each upright a guide rail of the flexible curtain and horizontal crosspieces.

The semi-rigid blades of the guide device are each retained between two end points secured to the uprights by an axis of rotation and a retaining guide to allow each blade, under the pressure of an external force, to eject the guide retainer by pivoting about the axis of rotation.

Note that the bottom of each guide rail delimited laterally by the semi-rigid blades is constituted by the wall of the corresponding vertical upright of the handling door.

It is found that there is a functional clearance between the bottom of each slide and the corresponding vertical edge of the flexible curtain to allow the latter to move between a closed position and an open position.

It is known from the patent of invention DE 2421368 , a guiding device for shielded roller shutter having on one of the parallel walls a magnetic element cooperating with another complementary magnetic element integral with the rigid curtain during the closing of the latter.

It is also known from the patent FR 2,266,790 , a guide rail for roller shutters having at least one compartment for receiving for its guidance the free end of a rigid roller shutter. The guide compartment or the free end of the roller shutter cooperates with sliding linings.

The guiding device according to the present invention aims to reduce the functional clearance of the flexible curtain with the bottom and the side walls of each guide rail to limit and reduce the phenomenon of air leakage between the two premises separated by the handling door.

The guiding device according to the present invention is defined in claim 1 in the appendix. It comprises semi-rigid blades whose profile makes it possible to determine for each guide rail a zone of reduced dimensions and a bottom curved profile reducing the functional clearance of the flexible curtain with the bottom and the semi-rigid blades of each guide rail to limit and reduce the phenomenon of air leakage between the two premises separated by the handling door.

The guiding device according to the present invention advantageously comprises semi-rigid blades which are joined together by a web and which extend from this web towards the main axis XX 'of the slideway in order to determine in any the height of the guiding device an entry of reduced dimension which is less than that internal of the veil.

The guiding device according to the present invention advantageously comprises semi-rigid blades which are joined together by a web and which extend from this web along a curved profile so that the guide slide comprises a zone Z1 of dimensions. reduced which is lower than those internal to the veil.

The guiding device according to the present invention advantageously comprises semi-rigid blades which are joined together by a web and which extend from this web according to a broken profile so that the guide slide comprises a zone Z2 of dimensions reduced which is lower than those internal to the veil.

The guiding device according to the present invention advantageously comprises a web which is integral between the semi-rigid blades of an added element having a convex face.

The guiding device according to the present invention advantageously comprises an insert element comprising a flat face which abuts against the inner face of the web and opposite the flat face a domed face.

The guiding device according to the present invention advantageously comprises an insert which is pierced over its entire height with several holes allowing the passage of screws for the simultaneous fixing of said insert against the web and the guiding device against the corresponding face of the upright.

The guiding device according to the present invention advantageously comprises a guide rail comprising an inlet whose dimensions vary according to the profile of the semi-rigid blades.

The guiding device according to the present invention advantageously comprises semi-rigid blades comprising at the level of the inlet and over the entire height of the guiding device a reinforcing bead.

• Figure 1 est une vue de face montrant une porte à rideau souple à enroulement pourvue d'un dispositif de guidage à lames semi-rigides suivant la présente invention.
• Figures 2 et 3 sont des vues illustrant un premier exemple de réalisation du dispositif de guidage suivant la présente invention.
• Figure 4 est une vue représentant un second exemple de réalisation du dispositif de guidage et plus particulièrement en ce qui concerne le profil de lames semi-rigides suivant la présente invention.
• Figure 5 est une vue montrant un troisième exemple de réalisation du dispositif de guidage et plus particulièrement en ce qui concerne le profil des lames semi-rigides suivant la présente invention.
• Figures 6 à 8 sont de vues illustrant différents exemples de positionnement du rideau souple à l'intérieur du dispositif de guidage en fonction de la direction de l'effort extérieur de pression.

The following description with reference to the accompanying drawings, given by way of non-limiting examples, will provide a better understanding of the invention, the characteristics it has and the advantages that it is likely to provide:

• Figure 1 is a front view showing a flexible roll-up curtain door provided with a semi-rigid blade guide device according to the present invention.
• Figures 2 and 3 are views illustrating a first embodiment of the guiding device according to the present invention.
• Figure 4 is a view showing a second embodiment of the guide device and more particularly with regard to the profile of semi-rigid blades according to the present invention.
• Figure 5 is a view showing a third embodiment of the guide device and more particularly with regard to the profile of the semi-rigid blades according to the present invention.
• Figures 6 to 8 are views illustrating various examples of positioning the flexible curtain within the guide device according to the direction of the external pressure force.

We have shown in figure 1 a handling door 1 having two lateral uprights 2 and 3 which are generally fixed against the vertical walls of an opening to be obstructed.

The opposite and vertical uprights 2 and 3 are interconnected in the upper part of the door 1 by a winding drum 4 of a flexible curtain 5.

It is noted that the flexible curtain 5 comprises sleeves 6 in which are inserted horizontal reinforcing crosspieces 7 whose ends cooperate with a guide device 8 provided on each upright 2 and 3.

Thus, the uprights 2 and 3 are secured to a guiding device 8 allowing the flexible curtain 5 to move between a closed position and an open position.

Each guide device 8 comprises two semi-rigid blades 9 and 10 arranged facing each other to form on each upright 2 and 3, and over the entire height of the latter, a slide 11 for guiding the curtain 5 and horizontal crosspieces 7.

We have shown in Figures 2 and 3 a first embodiment of the guide device 8 and more particularly the profile of each semi-rigid blade 9, 10 determining the guide rail 11 for moving the flexible curtain 5.

In this non-limiting example of embodiment, the semi-rigid blades 9, 10 are obtained in an extruded plastic material so that said blades are joined together by a web 12 bearing against the fixing face of the vertical uprights 2, 3 .

The semi-rigid blades 9, 10 extend from the web 12 towards the center of the guide rail 11 and the main axis XX 'in order to determine the entire height of the guide device 8 an inlet 13 of dimension reduced and less than that internal of the veil 12.

Thus, the semi-rigid blades 9, 10 of each guide device 8 have a slightly inclined position relative to the web 12, forming the bottom of the guide rail 11, whose inclination is directed towards the main axis XX '.

The semi-rigid blades 9, 10 have at the inlet 13 and over the entire height of the guide device 8 a reinforcing bead 19 giving a certain vertical resistance to the slide 11.

The web 12 has, over the entire height of the guiding device 8, a convex inner profile which is obtained either directly during the manufacture of the guiding device 8 or by an inset 14 in the form of a longitudinal rod which is fixed inside. and over the entire height of said device.

The insert 14 has a planar face 15 which abuts against the inner face of the web 12 and opposite the flat face 15 a convex face 16 which is directed towards the entry 13 of the guide rail 11.

The insert 14 is pierced over its entire height with several holes 17 allowing the passage of screws 18 for the simultaneous fixing of said insert member 14 against the web 12 and the guide device 8 against the face of the corresponding amount 2, 3.

We have shown in figure 4 , a second embodiment of the guiding device 8 with particular regard to the profile of the semi-rigid blades 9, 10.

These latter have a curved profile so that the guiding slide 11 comprises a zone Z1 of reduced dimensions compared to the dimensions of the inlet 13 or those internal to the web 12.

In the same manner as described above, the web 12 has, over the entire height of the guiding device 8, a domed inner profile which is obtained either directly during the manufacture of the guiding device 8 or by an inset 14 in the form of a rod. longitudinal which is fixed inside and over the entire height of said device.

Indeed, the insert 14 is pierced over its entire height by several holes 17 allowing the passage of screws 18 for the simultaneous fixing of said insert member 14 against the web 12 and the guide device 8 against the face of the upright 2, 3 corresponding.

We illustrated in figure 5 , a third embodiment of the guiding device 8 with particular regard to the profile of the semi-rigid blades 9, 10.

The latter have a broken profile so that the guide rail 11 comprises a zone Z2 of reduced dimensions compared to the dimensions of the inlet 13 or those internal to the web 12.

Thus, the semi-rigid blades 9, 10 respectively comprise segments 20, 21 and 22, 23 arranged in opposite directions so as to constitute a connecting zone Z2 of reduced dimensions compared to the dimensions of the inlet 13 or those internal to the sail 12.

In the same manner as described above, the web 12 has, over the entire height of the guiding device 8, a domed inner profile which is obtained either directly during the manufacture of the guiding device 8 or by an inset 14 in the form of a rod. longitudinal which is fixed inside and over the entire height of said device.

Indeed, the insert 14 is pierced over its entire height by several holes 17 allowing the passage of screws 18 for the simultaneous fixing of said insert member 14 against the web 12 and the guide device 8 against the face of the upright 2, 3 corresponding.

We have shown in Figures 6 to 8 examples of different positions of the flexible curtain 5 inside the guide rail 11 according to the direction of the external pressure force F.

During operation of the handling door 1, it is noted that the flexible curtain 5 can move inside the slide 11 and with respect to the curved inner profile 16 of the insert 14.

When the flexible curtain 5 is offset laterally by an external thrust force F, it is noted that the extreme edge of said curtain moves relative to the center of the curved profile 16 of the element 14 which determines a functional clearance j of small dimensions ( Figures 6, 8 ).

Indeed, the flexible curtain 5 comes, under the thrust force F, bearing against the ends 19 of the inlet 13 of the semi-rigid blades 9, 10 or in abutment against the zones Z1 or Z2 of said blades preventing and limiting air leakage between the two rooms separated by the handling door 1 ( Figures 6, 8 ).

When the flexible curtain 5 is carried by the main axis XX 'of the guide rail 8 and is not subjected to an external thrust force, it is noted that the extreme edge of said curtain comes in the immediate vicinity of the profile curved 16 of the element 14 reducing and limiting air leakage between the two premises separated by the handling door 1 ( figure 7 ).

It should further be understood that the foregoing description has been given by way of example only and does not in any way limit the scope of the invention as claimed in the claims.

Claims (9)

1. Guide device for a goods-handling door (1) having two lateral jambs (2, 3) and a flexible curtain (5), said device having two guide tracks (11) intended to be secured respectively to one of said jambs (2, 3) in order to guide said flexible curtain (5) between an open position and a closed position, characterized in that each slideway (11) consists of two semi-rigid strips (9, 10) connected by a back wall (12, 14), each strip (9, 10) being in one piece; the profile of the semi-rigid strips (9, 10) makes it possible to define a guide track (11) having a region of small dimensions (13, Z1, Z2) combined with a back wall (12, 14) with a dome-shaped profile reducing the functional play of the flexible curtain (5) with the back wall (12, 14) and the semi-rigid strips (9, 10) of each guide track (11) in order to limit and reduce the phenomenon of air leakage between the two rooms separated by the goods-handling door (1).
2. Guide device for a goods-handling door according to Claim 1, characterized in that the semi-rigid strips (9, 10) are connected together by a web (12) and extend from this web (12) in the direction of the main axis (XX') of the slideway (11) in order to define, over the entire height of the guide device (8), an opening (13) of small dimensions which is less than the internal dimensions of the web (12).
3. Guide device for a goods-handling door according to Claim 1, characterized in that the semi-rigid strips (9, 10) are connected together by a web (12) and extend from this web (12) along a curved profile such that the guide track (11) has a region (Z1) of small dimensions which is less than the internal dimension of the web (12).
4. Guide device for a goods-handling door according to Claim 1, characterized in that the semi-rigid strips (9, 10) are connected together by a web (12) and extend from this web (12) along a broken profile such that the guide track (11) has a region (Z2) of small dimensions which is less than the internal dimension of the web (12).
5. Guide device for a goods-handling door according to any one of Claims 1 to 4, characterized in that the web (12) is secured between the semi-rigid strips (9, 10) to an inserted element (14) having a dome-shaped side (16).
6. Guide device for a goods-handling door according to Claim 5, characterized in that the inserted element (14) has a flat side (15) which is pressed against the internal side of the web (12) and a dome-shaped side (16) opposite the flat side.
7. Guide device for a goods-handling door according to Claim 6, characterized in that the inserted element (14) is pierced over its entire height by a plurality of holes (17) through which pass screws (18) for simultaneously fixing said inserted element (14) on the web (12) and the guide device (8) on the corresponding side of the jamb (2, 3).
8. Guide device for a goods-handling door according to Claim 1, characterized in that the guide track (11) has an opening (13) the dimensions of which vary depending on the profile of the semi-rigid strips (9, 10).
9. Guide device for a goods-handling door according to Claim 8, characterized in that the semi-rigid strips (9, 10) have a reinforcing bead (19) at the opening (13) and over the entire height of the guide device (8).

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