FR2814490A1 - SECTIONAL DOOR - Google Patents

Abstract

The present invention relates to a sectional door of the type which essentially comprises a leaf (10) consisting of a plurality of panels (11 to 15) articulated with respect to one another, each of said panels (11 to 15) comprising slides (21a to 25a, 21b to 25b) identical designed to be able to slide along two slides (30a and 30b) respectively provided on the sides of the bay that said door is intended to close, each of said slides (30a and 30b) having a part of rest (31a, 31b) in the closed position of the leaf (10) and a rest part (32a, 32b) in the open position of the leaf (10) inside the room that said door is intended to close. the present invention, each of said slides (30a and 30b) is tubular and in that each of said slides (21a to 25a, 21b to 25b) comprises rollers with horizontal axes lying substantially in the plane of the corresponding panel and provided to be able to to roll on the tube constituting each slide (30a and 30b), at least one roller being turned, with respect to said slide (30a, 30b), towards the outside of said room while at least one other roller is turned towards inside said room.

Description

The present invention relates to a sectional door.

  Sectional doors are already known and the patent document FR-A-2 467 952 will be cited by way of illustration. In this document, the sectional door described is of the type which essentially comprises a leaf consisting of a plurality of panels hinged relative to each other, each of said panels having identical slides provided for being able to slide along two slides

  respectively provided on the sides of the bay that said door is intended to close.

  Each of said slides has a substantially vertical part and a substantially horizontal part inside the room that said door is intended to close.

  connected together by a curved part.

  The slides are hollow and the slides are provided with rollers for

  being able to roll inside said slides.

  However, it turns out that such a door arrangement is not necessarily very healthy due in particular to the water which can stagnate inside the slides. In addition, the pebbles

  are difficult to access and therefore difficult to clean.

  The object of the present invention is to propose a sectional door which does not

not have these drawbacks.

  To this end, a sectional door according to the present invention is characterized in that each of said slides is tubular and in that each of said slides comprises rollers with horizontal axes lying substantially in the plane of the corresponding panel and provided for being able to roll on the constituent tube of each slide, at least one roller being turned, relative to said slide, towards the outside of said room while at least one other roller is facing

inside said room.

  According to an advantageous characteristic of the invention, each slide

has two rollers.

  According to another characteristic of the present invention, each roller is mounted

on axes that are removable.

  According to another characteristic of the invention, the constituent tube of each slide is of circular section and each roller comprises two curved frustoconical parts which have a radius of said tube so as to be able to rest therein and which are

  placed on either side of a recessed part.

  According to another characteristic of the invention, said rollers of a slide are mounted on a yoke so as to be able to rotate there freely while enclosing said tube, said yoke being pivotally mounted on the corresponding panel according to a

  horizontal axis in the plane of said panel.

  According to another characteristic of the invention, the sectional door includes

  means for compensating for the weight of said panels constituting said leaf.

  According to another characteristic of the invention, said compensation means comprises a cable which is connected by one end in the lower part of said leaf and

  the other end of which passes through a hauling system.

  According to another characteristic of the invention, each slide of the bottom panel has its yoke which is pivotally mounted on said panel along a pivot axis being offset relative to the plane of symmetry of said slide, said yoke being provided with a plate designed to be able to pivot along an axis parallel to said pivot axis of said fork, said fork and said plate by pivoting being able to take

  the shape of a V while being braced on said corresponding slide.

  According to another characteristic of the invention, said plate has a U-shaped notch whose legs are parallel to its pivot axis, the width between said two legs being close to the diameter of the tube constituting

each slide.

  According to another characteristic of the invention, each slide of the bottom panel has a sleeve provided to be able to pivot freely along the pivot axis of said yoke, lashing means being provided on said sleeve to be able to

  secure the cable of the compensation means.

  According to another characteristic of the invention, a spring is provided to assist the pivoting of said plate and thus the triggering of the bracing of said

screed and said plate.

  According to another characteristic of the invention, a tab is mounted integral with said sleeve and has, at its free end, an oblong hole in which is

engaged a nipple of said yoke.

  The features of the invention mentioned above, as well as others,

  will appear more clearly on reading the following description of an example of

  realization, said description being made in relation to the attached drawings, among

  which: Fig. 1 is a perspective view of a sectional door according to the present invention, FIG. 2 is a perspective view of a slide according to the present invention, FIG. 3 is a sectional view along the plane III / III of FIG. 2 of the slide shown in FIG. 2, Fig. 4 is a sectional view of a drop-stop fitting a sectional door according to the present invention, and FIGS. 5a and 5b are plan views of a drop-stop fitting a sectional door according to the present invention respectively shown in operation

  sectional door normal and in fall arrest operation.

  The sectional door shown in FIG. 1 essentially consists of a leaf 10 itself consisting of a plurality of panels 11 to 15 (in FIG. 1 the number of panels is five but it will be understood that this number is given by way of example and that it could be lower or higher without fundamentally modifying the invention) articulated relative to each other by means of hinges 16. On each of the panels 11 to 15, are mounted, at their ends, slides 21a to a, 21b to 25b identical which are provided to slide along two slides 30a

and 30b.

  In Fig. 1, the front plane is inside the room, while the background is

found outside the room.

  Each slide 30a, 30b essentially consists of a rest part 31a, 31b in the closed position of the leaf 10 (so-called closed rest part), a generally substantially vertical part (in reality, as will be understood below, this part 31a , 31lb is slightly inclined from the inside to the outside to allow better closing of the leaf 10 on its embrasure) and of a rest part 32a, 32b in the open position of the leaf 10 (called open rest part), part which is, in the embodiment shown, substantially horizontal but which could be an extension of the previous part. In the embodiment shown, these two rest parts are connected to each other by means of a curved part 33a, 33b. Each closed rest part 3 1a, 3 lb is fixed, on the one hand, to a plate 34a, 34b on the ground and, on the other hand, to the upright (not shown) of

  the opening that the door closes by means of supports 35a (35b is not visible in Fig. 1).

  As for each open rest part 32a, 32b, it is intended to be inside the room closed by the door and it is fixed to the ceiling of the room closed by the

  door by means of supports 36a, 36b.

  As will be readily understood, by exerting an ascending vertical force on at least one of the panels 11 to 15, it is possible to slide the assembly of said panels 11 to 15, by means of the sliders 21a to 25a. , 21b to 25b on the slides 30a and 30b, first on the closed rest parts 31 la and 3 lb, then on the

open rest parts 32a and 32b.

  When the set of panels 11 to 15 is supported by the open rest parts 32a and 32b, the sectional door is open. Then, when it is open, by the exercise of a horizontal force turned towards the outside of the room, it is possible to slide the assembly of said panels 11 to 15 first on the open rest parts 32a and 32b then on the closed rest parts 31 la and 3 lb. When the set of panels 11 to 15 is supported by the closed rest parts 3 a and 3 lb (as shown in FIG. 1), the sectional door is closed. It will be noted that the exercise of the vertical or horizontal forces can be done manually and, in this case, at least one panel comprises for example an appropriate handle (not shown) or, on the contrary, in a motorized manner, for example by means of an electric motor and a system, such as a rack, an endless cable, etc. (also not shown). This is not described in more detail,

  insofar as this is not the object of the present invention.

  To "lighten" the leaf 10, there are provided, on each side of the sectional door, means for compensating for the weight of said panels 11 to 15 consisting of a return means, such as a spring, a counterweight, etc. In the embodiment shown, each return means is a spring 40a, 40b which is connected to the leaf 10 by means of a hauling system 41a, 41b. This hauling system 41a, 4 lb is made up, in the embodiment shown in FIG. 1, a set of pulleys 42a, 42b fixed on the upright of the rack and a pulley 43a, 43b at the upper end of the corresponding spring 40a, 40b. A cable 44a, 44b is fixed on the bottom panel 15, passes through the sheaves of the pulleys 42a, 42b, then through the sheave in the pulley 41a to come and fix themselves on the upright of the bay. The lower end of each spring 40a, 40b is fixed

  on the corresponding plate 34a, 34b.

  It will be understood that the spring 40a, 40b exerts an ascending vertical force on the leaf 10 which decreases with the number of panels 11 to 15 which are in the horizontal position resting on the open rest parts 32a and 32b. By choosing an appropriate stiffness of each spring 40a, 40b and possibly adjusting it by means of right / left systems 45a, 45b, the vertical force exerted by the springs a, 40b largely compensate for the weight of the panels 11 to 15 which are in a vertical position resting on the closed rest parts 31a and 3 lb. There is shown in FIG. 2 a slide 50 in position on a slide 30. In this FIG. 2, we also see the lower part of a panel 10, and the upper part of a panel 102. The slide 50 is also fixed for example by screwing to the panel

  102 via a plate 51.

  There is shown in FIG. 3 the same slide 50 but cut along plane III / III of FIG. 2. We recognize, in this Fig. 3, the slide 30 which, according to a characteristic of the present invention, has a circular section. Here it consists of a circular section tube. We also recognize the panel 102 already shown in FIG. 2 as well as the plate 51. The means for fixing the plate 51

  on the panel 102 are not shown.

  The slide 50 further comprises two rollers 52a and 52b which are mounted on a double yoke 53 (hereinafter called yoke 53) so as to be able to rotate freely while enclosing the tube constituting the slide 30. These rollers 52a and 52b are located on either side of the slideway 30, respectively on the side facing the inside of the room in which the sectional door is installed and on the side facing towards the outside of this

  local, this when the leaf 10 is in a vertical position.

  Each roller 52 therefore comprises two curved frustoconical parts 52, which have a radius of curvature equal to the radius of the tube of the slide 30 so as to be able to rest on this tube and which are placed on either side of a recessed part , here also cylindrical, curved with a radius of curvature less than that of the tube of the slideway 30. In this way, each roller 52 rolls on the tube of the slideway 30 by bearing on it (by the parts 521) only on a limited area. Beyond each part 521, there is a straight cylindrical part 523 having at its

end of a chamfer.

  The yoke 53 has a section in the form of two U whose souls 53, face each other, the legs 532 on one side being combined while the legs 533 on the other side are distinct. The latter carry axle supports 54 (see also FIG. 2) which are secured (for example by elastic washers fitted at the end of the axes 55) and respectively support the axes 55 around which the rollers rotate.

52a and 52b.

  The yoke 53 has a pin 56 which is pivotally mounted in a sleeve 57 itself secured to the plate 51. Thus, the yoke 53 is pivotally mounted on the corresponding panel 11 to 15 along a horizontal axis in the plane

said panel.

  Note that, in the advantageous embodiment shown, the pivot axis of said yoke 53 is located substantially in the plane of symmetry of the corresponding slide. As can be seen in FIG. 1, the bottom panel 15 has in its lower part special slides 26a and 26b which are intended to stop the fall of the leaf 10 when the springs 40a and 40b are no longer connected to the leaf 10, following, for example, the cut damaged cables 44a and 44b. Such a slide is named

  below stop-fall 60 and is shown in perspective in FIG. 4.

  It has similarities with the slides 50. In fact, the rollers 62 are identical to the rollers 52 and are mounted in the same way, in particular with supports of axis 64 and axes identical to the supports of axes 54 and axes 55. The yoke 63 is substantially identical to yoke 53 although the journal 66, unlike the journal 56, is offset relative to the axis of symmetry of the yoke 63 (see Figs. 5a

and 5b) and therefore of the stop-fall 60.

  The plate 61 is arranged in the form of a square in order to be able to be fixed, on the one hand, on the lateral edge of the bottom panel 15 and, on the other hand, on the lower edge of the bottom panel 15. On the plate 61 , a sleeve 67 is mounted rotating on and relative to the plate 61, unlike the sleeve 57 which was integral with the

  plate 51. A stop 68 is provided to limit the rotation of the sleeve 67.

  The pin 66 is fitted into the sleeve 57 in which it can pivot.

  On the sleeve 67, means 69 are provided for securing the cable 44a, 44b connected to the corresponding spring 40a, 40b. In normal operation, this cable 44a, 44b exerts a force which generates a torque which makes the sleeve rotate in the direction shown by arrow A in FIG. 4. A return means, such as a helical spring (not

  shown) tends to rotate the sleeve 67 in the opposite direction (see arrow B).

  A tab 70 is integral with the sleeve 67 and has, at its free end, an oblong hole 70a in which is engaged a stud 71 integral with the yoke 63. In a particular embodiment, the stud 71 is constituted by the axis of the corresponding roller 62. A plate 72, reinforced on its periphery by a bead 72a, is pivotally mounted on the yoke 63 along an axis X which is parallel to the axis of the journal 66. A hinge 73 is provided on the yoke 63 so as to materialize the axis X. At rest, this plate 72 rests on the yoke 63 and it has a hole 72b which receives a centering lug 74 secured to the yoke 63. As will be seen later, in action, that is to say say when the fall stopper is active, the plate 72 forms an angle with the

yoke 63.

  The plate 72 also has a U-shaped notch 75 whose legs are parallel to the pivot axis X and whose core is in a semi-circular

  radius slightly greater than the outside radius of the tube which constitutes the slide 30.

  Thus, the width between said legs of the U is close to the outside diameter of the

slide 30.

  We will now explain the operation of a fall-arrest according to the

  present invention, and this with reference to Figs. 5a and 5b.

  In Figs. 5a and 5b, we can recognize the slide 30, the yoke 63, the journal 66, the plate 72 provided with its notch 75, the sleeve 67 to which are fixed, on the one hand, the means 69 for securing the cable 44a, 44b and, on the other hand, the tab 70 and its oblong hole 70a as well as the stud 71. We also see the axis X. We will also notice the rollers 62 which are represented in dotted lines by the only traces of their

  parts 62, of radius equal to that of the slide 30.

  In Fig. Sa, the cable 44a, 44b is stretched The rollers 62 can move freely on the slide 30 and the notch 75 of the plate 72 does not come into contact with the tube of the slide 30. The tab 70 is in equilibrium and is located thus substantially horizontal. In this position, the stud 71 is substantially in the center of the oblong hole

has paw 70.

  In Fig. 5b, the cable 44a, 44b is cut. This situation is given by way of example but the person skilled in the art will understand that the stop-fall described here

  will become active in other situations equivalent to this.

  The spring (not shown) whose action is no longer offset by that of the cable 44a, 44b acts on the assembly consisting of the sleeve 66, of the tab 70 to rotate it as shown by an arrow A at the Fig. 5b. When the oblong hole 70a abuts on the stud 71, the yoke 63 pivots about its axis 66 and the plate 72 pivots relative to its axis X. They then take the form of a V while being braced on said corresponding slide 30. The edges of the notch then come into contact with the tube of the slideway 30. The plate 72 is then in a corner position and any additional action on the leaf 10 which tends to do so

  going down leads to an increase in this jamming effect.

Claims (10)

  1) Sectional door of the type which essentially comprises a leaf (10) consisting of a plurality of panels (11 to 15) hinged with respect to each other, each of said panels (11 to 15) comprising slides (21a to 25a, 21b to 25b) identical provided to be able to slide along two slides (30a and 30b) respectively provided on the sides of the opening that said door is intended to close, each of said slides (30a and 30b) having a rest part (31 la, 3 lb) in the closed position of the leaf (10) and a rest part (32a, 32b) in the open position of the leaf (10) inside the room that said door is intended to close, characterized in that each of said slides (30a and 30b) is tubular and in that each of said slides (21a to 25a, 21b to 25b) comprises rollers (52a, 52b) of horizontal axes lying substantially in the plane of the corresponding panel and provided for being roll on the consti tube guard of each slide (30a and 30b), at least one roller (52a) being turned, relative to said slide (30a, 30b), towards the outside of said room while at least one other roller (52b) is find turned to inside said room.   2) Sectional door according to claim 1, characterized in that each slide has two rollers.   3) Sectional door according to claim 1 or 2, characterized in that each   roller is mounted on a removable axle.   4) Sectional door according to one of the preceding claims, characterized in   that the constituent tube of each slide (30a, 30b) is of circular section and in that each roller (52a, 52b) comprises two curved frustoconical parts (521) which have a radius of said tube so as to be able to rest therein and which are placed from   on either side of a recessed part.   5) Sectional door according to one of the preceding claims, characterized in   that said rollers (52a, 52b) of a slide are mounted on a yoke (53) so as to be able to rotate there freely while enclosing said tube, said yoke (53) being pivotally mounted on the panel (11 to 15 ) corresponding along an axis   horizontal in the plane of said panel.   6) Sectional door according to one of the preceding claims, characterized in   what it includes means for compensating for the weight of said panels (11 to 15) constituting said leaf (10).   7) Sectional door according to claim 6, characterized in that said compensation means comprise a cable which is connected by one end in the lower part of said leaf (10) and the other end of which passes through a hauling system.   8) Sectional door according to one of the preceding claims, characterized in   that each slide of the bottom panel (15) has its yoke (63) which is pivotally mounted on said panel (15) along a pivot axis being offset relative to the plane of symmetry of said slide, said yoke (63) being provided with a plate (72) designed to be able to pivot along an axis parallel to said pivot axis of said yoke (63), said yoke (63) and said plate (72) by pivoting being able to take the form of a V while being braced on said corresponding slide. 9) Sectional door according to claim 8, characterized in that said plate (72) has a notch (75) in the form of U whose legs are parallel to its pivot axis (X), the width between said two legs being close to the diameter   of the constituent tube of each slide.   ) Sectional door according to claim 8 or 9, characterized in that each slide of the bottom panel (15) has a sleeve (67) provided to be able to pivot freely along the pivot axis of said yoke (63), means of stowage (69) being provided on said sleeve to be able to stow the cable (44a, 44b) means of compensation.   11) Sectional door according to claim 10, characterized in that a lug (70) is mounted integral with said sleeve (67) and has, at its free end, a hole   oblong in which is engaged a stud (71) of said yoke (63).   12) Sectional door according to one of claims 8 or 11, characterized in   that a spring is provided to assist in the pivoting of said plate (72) and in the arc-   bracing of said yoke (63) and of said plate (72).