FR2844541A1 - DEVICE FOR SEALING A SLIDING DOOR - Google Patents

Abstract

The present invention relates to a device allowing the tight closing of a sliding door (1) for closing an opening made in a wall (2), comprising motor means (4) and sliding means, characterized in that that said sliding means comprise two parallel fixed suspension elements (5, 6), offset in a direction transverse to the wall (2) and / or the door (1), and on each of which is capable of resting and resting moving two movable members linked to the door and in that the sliding elements comprise two parallel rails (5, 6) on each of which is able to roll a roller (7, 8) integral with the door (1).

Description

DEVICE FOR SEALING A SEALED DOOR

  The present invention relates to a device for sealing a sliding door in the form of a leaf moving parallel to a wall in which an opening is made

  intended to be closed by the door.

  This type of door is commonly used for example in operating or refrigeration rooms, where it is necessary both to obtain a tight closure by pressing the door against the wall on the edge of the opening, and to allow passage on the ground free of any obstacle for the

  movement of carts or other vehicles on the ground.

  These known closing devices comprise an upper rail located above the door and on which rolls a pair of rollers connected to the door. When moving, the door is supported on the one hand on the upper rail by the rollers, and on the other hand on one or more free rollers 20 in rotation, fixed to the ground on one side of the opening (the rollers leaving free

the passage on the ground of the opening).

  Once the door has arrived in front of the opening, the door is only supported on the upper rail. To access its closed position, pressed against the 25 edges of the opening, the door must be moved vertically on the one hand

  downwards and horizontally towards the wall where the opening is made.

  In known manner, this double movement is made possible by two notches provided on the upper rail. The passage of each roller 30 in the corresponding notch causes a double vertical and horizontal movement of the door, which presses it against the wall, thus closing

hermetically opening.

  However, it is necessary to provide sufficient spacing between the two notches to prevent a first roller from rolling in

  a notch for the second.

  Therefore, in known devices, the upper rail is longer than the

double the width of the door.

  Thus, this limits the possibilities of installing such for reasons of space. The present invention proposes to solve this problem by presenting a sealed sliding door closing device, the sliding means of which have a reduced bulk, while responding

  the criteria of tightness and free passage on the ground.

  To this end, according to the invention, the device for sealingly closing a sliding door 20 for closing an opening made in a wall, comprising motor means and sliding means, is characterized in that said sliding means comprise two parallel fixed suspension elements, offset in a direction transverse to the wall and / or the door, and on each of which 25 is able to bear and move two movable members linked to the door.

  Advantageously, the sliding elements comprise two parallel rails on which each of which is capable of rolling a roller 30 secured to the door.

  Preferably, the rails have a length twice the width of the door.

  Advantageously, each rail has a notch, one of the notches is provided in the center of the corresponding rail and the other notch is provided on one of the ends of the other rail. More particularly, the motor means and the sliding means are integral with means for suspending said door and the suspension means comprise a suspension element having, along its length, said two rails and a sliding zone for the motor means. Preferably, the drive means allow the door to be opened by

  simple pressure on the front of the door.

  Advantageously, the watertight closure of said door is produced by means of a leaktight seal in the form of a single profile, made of elastically deformable material, and secured on the periphery of the face of the

door next to the opening.

  The invention will now be better understood in the light of the description which follows, relating to an illustrative and in no way limiting example of

  the invention, with reference to the accompanying drawings in which: - Figure 1 shows a side sectional view of the device according to the invention; - Figure 2 shows a front perspective view of the two sliding rails; FIG. 3 represents a front perspective view of the two sliding rails 30 with the two rollers, and

  - Figure 4 shows a cross section of the sliding door.

  With reference to FIG. 1, the device according to the invention allows the tight closure of a sliding door 1, represented in the form of a leaf capable of closing an opening (not shown) intended for the passage of people, vehicles, carts, stretchers or others, and

practiced in a wall 2.

  The leaf 1 is associated with suspension means in the form of a suspension element 3 fixed by any known means to the wall 2, io above the sliding door 1.

  The concepts "upper" and "lower" express a situation far or near the ground, respectively. Likewise, the terms "horizontal" and

  "vertical" means a layout or orientation relative to the ground.

  The suspension element 3 is in the form of a long profile comprising two parts: an upper part in which a motor system 4 can move and a lower rolling part composed of two rails 5, 6 parallel to each other and to the plan of the wall 2.

  The rail closest to the wall 2 on which the suspension element 3 rests is called proximal rail 5 and distal rail 6 the most

away from the wall 2.

  The proximal rail 5 is therefore located between the distal rail 6 and the wall wall 2.

  On each rail 5, 6 can roll a caster. Thus, on the proximal rail 5 moves a proximal caster 7, and on the distal rail 6 a distal caster 30 8 (not shown in FIG. 1).

  The rails 5, 6 are generally in the form of an elongated blade, with a rectangular section, and the plane of which is inclined relative to the vertical, or

  relative to the plane of the wall 2.

  The leaf 1 has on the edge of its lower edge (facing the ground), a groove 9 in which can roll one or more roller (s) 10 mounted (s) free (s) in rotation on a support (not shown) fixed (s) on the ground. The roller (s) 10 and the groove 9 have complementary shapes, preferably trapezoidal. The leaf 1 also has on the periphery of the face facing the wall 2, a protruding flange 11, on which is fixed a joint 1i1A in

  elastically deformable material.

  i5 When leaf 1 is pressed on the wall, more precisely on the edges of the opening, the joint I is deformed and thus ensures

the tightness of the closure.

  The distal 8 and proximal 7 rollers are each connected to leaf 1 by a U-shaped angle 12, 13. Thus, the proximal angle 12 (respectively distal 13) connects the proximal roller 7 (respectively

distal 8) to leaf 1.

  The U-shaped distal angle 13 has one of the branches of the U 25 that is larger than the same branch of the U of the proximal angle 12.

  The motor system 4 operates using a belt 14 which is wound up

around a pulley 15.

  The motor system 4 drives the belt 14 around the pulley 15; the motor system 4 then moves thanks to a carriage 16, which causes

  the rolling of the rollers on the rails 5, 6.

  Connection means between the motor system 4 and the door 1, which is moved in translation, are provided (not shown) and of any type known per se, for example a metal bar between the motor system 4

  and the proximal 12 and distal 13 angles.

  FIG. 2 represents a front perspective view of the two rails 5, 6.

  For clarity, the suspension element 2 and the rollers 7, 8 do not

are not shown.

  The proximal rail 5 has, over part of its length, a so-called notch

proximal notch 17.

  It is the same for the distal rail 6 which has a distal notch 18.

  The two notches are of the same profile and are offset

  longitudinally relative to each other.

  Each notch 17, 18 is in a downward curve, has a length of about twenty centimeters, and ends in a shoulder where the roller 7 25 or 8 which is associated therewith abuts.

  Each notch 17, 18 has a drop (relative to the upper level of the rail) sufficient to allow the door 1 to move without

  sudden movement on the two rails 5 and 6.

  The distance in length (in the direction of the rails) between the two notches 17 and 18 is at most equal to the width of the leaf 1,

  measured in the plane of the wall 2.

  Thus, the length of all of the rails 5, 6 and of the motor system 4 measures at most twice the width of the leaf 1.

  Ideally, the distal notch 18 is located in the middle of the distal rail 6, and the proximal notch 17 is located at one end of the proximal rail 5.

  FIG. 3 represents a front perspective view of the two rails 5, 6 with the rollers 7, 8 associated with the leaf 1, part of the two rails

only being shown.

  i5 The planes of each rail 5, 6 are slightly inclined with respect to a

  vertical plane (perpendicular to the ground).

  Thus, during the rolling of the rollers 7, 8 in the notches 17, 18, the leaf 1 undergoes a double vertical and horizontal movement, that is to say a downward movement directed towards the wall wall 2.

  This operation presses the door against the wall and therefore

  to close door 1 tightly.

  Figure 4 shows a cross section (in a horizontal plane)

leaf 1.

  Note the particular shape of the 1i1A seal which, due to its structure, does not

  has no part where dust can collect.

  In addition, a single joint 11A, in the form of a long profile, can be used over the entire periphery 11 of the proximal face of the leaf 1.

Claims (10)

  1. Device for sealingly closing a sliding door (1) for closing an opening made in a wall (2), comprising motor means (4) and sliding means, characterized in that said sliding means comprise two parallel fixed suspension elements (5, 6), offset in a direction transverse to the wall (2) and / or the door (1), and on each of which is capable of bearing and moving two organs mobiles linked to the door (1).   2. Device according to claim 1, characterized in that the sliding elements comprise two parallel rails (5, 6) on each   which is adapted to roll a roller (7, 8) integral with the door (1).   3. Device according to claim 2, characterized in that the rails (5, 6)   have a length twice the width of the door (1).   4. Device according to claim 3, characterized in that each rail 20 (5, 6) has a notch (17, 18).   5. Device according to claim 4, characterized in that one of   notches (17, 18) is provided in the center of the corresponding rail (5, 6).   6. Device according to claim 5, characterized in that the other notch (17, 18) is provided on one of the ends of the other rail (5, 6).   7. Device according to one of; previous claims, characterized in that the drive means (4) and the sliding means are   integral with means for suspending said door (1).   8. Device according to claim 7, characterized in that the suspension means comprise a suspension element (3) having along its length said two rails (5, 6) and a sliding zone of the motor means (4).   9. Device according to one of the preceding claims, characterized in   what the drive means (4) allow the door (1) to open   by simple pressure on the front of the door (1).   10. Device according to one of the preceding claims, characterized in   that the sealed closure of said door (1) is achieved by means of a tight seal (11A) in the form of a single profile, made of elastically deformable material, and secured on the periphery (11) of the face 15 of the door next to the opening.