ES2274304T3 - PANEL FOR SECTIONAL DOORS. - Google Patents

Abstract

A panel ( 1, 1 ') for sectional doors presents a body having: a first longitudinal end ( 6 ) having a more outer substantially circular profile part ( 5 ) and a more inner narrow connecting part ( 10, 11, 17, 18, 19 ), and a second longitudinal end ( 7 ) opposite the first ( 6 ) and presenting a recess ( 8 ) of substantially circular narrow-mouthed shape ( 8 A) arranged to matchingly receive the more outer part ( 5 ) of another panel having identical ends such as to couple and hinge the panels ( 1 ) together by simply inserting them manually and thrusting them in the direction of the panel height, or by inserting the the ends of the individual panels into each other by simply sliding them mutually in the direction of the panel length.

Description

Panel for sectional doors.

The present invention relates to a panel for sectional doors.

Sectional doors currently represent the maximum quality standard to close an access space to a residential or industrial building.

The panels for sectional doors are formed currently from two metal plates properly profiled sandwiched between them and enclosing polyurethane foamed as insulating agent.

The panels are usually articulated between they using intermediate and / or lateral hinges mounted on the ends of the panels by suitable fixing means.

The disadvantages of the current panels for Sectional doors are as follows:

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the hinges that fix the panels between them are subjected to tensile, bent, shear and torsion forces during operation of the door and transmit these efforts to fixing means, which consequently require a constant maintenance and constitute a critical point, in particular under the action of the wind;

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To allow the articulation of two consecutive doors to rotate perfectly, the centers of rotation of the various hinges positioned along them must be concentric and aligned. Such alignment is difficult to achieve on site and even if achieved, it would be imperfect due to the efforts that exist in the door and, therefore, in the panels during operation. For this reason, the articulation is always imperfect, resulting in this imperfection with the passage of time an undesirable grinding during the movement of the door leaf while the door is opened or closed;

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he balance on the contact points between two panels Consecutive is generally unstable due to the fact that the contact zone between them is not symmetric around the center of hinge articulation, thus generating curvatures unsightly and lack of alignment of the panel profiles in the longitudinal direction, which become appreciably larger when the panel length increases;

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the production, assembly and installation times of the current panels they are long, making these operations expensive due to the presence of said intermediate fixing hinges, of the which at least three in number with four screws each are present for each pair of panels.

EP-A-0623724 describes a panel for sectional doors in which the adjacent panels are articulated to each other by means of hinge parts that are part of the panel. In fact, the latter has a first longitudinal end with a more outer circular profile part and a longitudinal end opposite the first and with a circular narrow mouth shaped recess arranged to receive said circular profile part of another panel coincidentally It has identical ends, such as to couple and articulate the panels between them. Said circular profiled part and said circular recess have the same center, which is offset with respect to the middle plane of each panel. To insert the circular profile part of a panel into the circular recess of an adjacent panel, it is necessary that the middle planes of the panels form an angle
suitable.

In the document FR-A-2045563 a door is described folding slide comprising a plurality of panels, being articulated each panel to the adjacent panel similarly to the used to articulate the panels in the document EP-A-0623724. However, in the document FR-A-2045563, each panel can rotate around a vertical axis that is in the middle plane of the panel. Also, in this case, for the rotating coupling of two adjacent panels, it is necessary that the middle planes of the two panels form an appropriate angle.

The drawbacks of the known technique are evident from the above considerations, since, in In particular, the current panels do not fully satisfy the requirements for ease of installation and reliability with the weather.

The main object of the present invention is provide a panel for sectional doors in which the joint between adjacent panels do not depend on hinges approximate fixed to the panels.

In a first embodiment, the present invention provides a panel for sectional doors, which comprises a profiled outer metal plate and a plate metal profiled inside, connected to each other to form a interspace occupied by a means of isolation, such as foamed polyurethane, characterized by presenting: a first longitudinal end having a substantially profile part more outer circular and a narrower connection part more inside, and a second longitudinal end opposite the first and that  has a substantially circular narrow mouth recess arranged to receive said outermost part of another panel that it has identical ends, such as to couple and articulate the panels between them.

In a second embodiment of the invention, the panel is formed from extruded profile bars, one of the which forms the first longitudinal end that has one more part exterior of a substantially circular profile and a part of narrow innermost connection, forming the second profiled bar extruded the second longitudinal end opposite the first and that It has a substantially circular recess with a narrow mouth.

The features of the invention will be more evident from the following description and from the drawings that they are accompanied, referring to some embodiments of non-character limiting, in which:

Figures 1A and B show a first preferred embodiment of the panel in sectional view, mounted and decomposed into its component elements, respectively;

Figures 2A, B, C are sectional views with relative external presentations of three preferred configurations  respective panels of figure 1;

Figure 3 is a section showing the shape particular of the ends of the panel of figure 1, together with a section through an anti-friction half-ring that can join the panel;

Figures 4A, B, C show, respectively, two sections and a front view referring to the modalities of assembly of the anti-friction half-rings;

Figures 5A, B are a section and a view front showing the two panel mounting modes consecutive of figure 1;

Figures 6A, B, C are three sections through of the part of the upper ends coupled to two panels consecutive, shown respectively in the normal position, in an inclined position in \ pi / 6 radians and in a position inclined in π / 3 radians;

Figures 7A, B and C are respective sections through another preferred embodiment of the invention using extruded profile bars; in particular: Figure 7A shows the point of attachment (articulation) of two profiled bars that they belong to two consecutive panels; Figure 7B shows the separation at this junction point (with omission of the half-ring antifriction); Figure 7C shows two profile bars used in the ends (upper and lower) of the sectional door;

Figures 8A and 8B represent general views of two panels formed from the profiled bars, attached to a plurality of interchangeable commercial elements that can Obtain from the market, such as glass and aluminum supports For single and double glazing, external rubber sealing strips and internal and aluminum separators;

Figures 9A, B, C and D represent four general sections through possible doors that can be formed  with the panels of the preceding figures.

In particular, Figure 1 shows a section a through panel 1 and its main component elements, to know: a profiled metal plate that forms the profiled part in the outer side 2 of the sectional door, a metal plate profiled differently that forms the profiled part in the inner side 4, and an internal space limited by said plates profiled 2 and 4, and filled with foamed polyurethane 3.

Panel 1 for sectional doors obtained from according to the present invention by coupling said plates together profiled metal 2 and 4 and insulated with foamed polyurethane 3, which also acts as a binder, understand (see Figure 4 in particular):

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a first longitudinal end 6 (which is the upper end when it is in use and is called like this) that has a profiled part 5 substantially outermost circular formed by the union of two circumferential arcs 12 and 16 joined together by means of a pair of folded tabs 13 and 14 and joined by rounding to upper end of panel 6 with the help of connection profiles conformed 10-11 and 17-18-19 that define the part narrow innermost of the upper end 6 of the panel;

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a lower end 7 having a particular recess profile 8 of substantially circular shape formed by the union of two arches circumferentials 24 and 28 joined together by means of a pair of bent tabs 26, 27 and joined by rounding to the end bottom of panel 7 with the help of fixing profile portions conformed 20-21-22-23 and 29-30-31-32;

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a semi-ring 9 of seated anti-friction material (see figure 4) in portions 23, 24, 28 and 29 of rebate 8. As shown in Figure 4, the half rings are of limited longitudinal extension and involve only localized points.

Said ends 6 and 7 of each individual panel 1 can be attached and articulated to the matching ends of others 1 'identical panels to be simply inserted by hand and pushed in the direction of the height axis without the help of hinges or other connection means (see the top of the Figure 5) or when inserting said matching ends of the panels individual one in another by simply sliding them between them in the direction of the panel length.

This joint between the panels, achieved by virtue of the concentricity of the two matching ends 6 and 7 having said particular matching profiles 5 and 8, is such as to generate an always perfect rotation of them during the opening and closing of the sectional door.

Said fixing profile portions conformed 20-21-22-23 and 29-30-31-32 present at the lower end 7 are shaped in such a way that the initial portions 22-23 and 29-30 forming the access mouth 8A to recess 8, are positioned below the center 25 of said recess 8 and they have a minimum distance between them that is less than diameter of the outermost part 5 of the upper end 6, such as to embrace said part 5 when inserted and avoid its easy decoupling during normal door operation sectional

In a preferred embodiment, said part more exterior 5 of the upper end 6 inclines towards the interior of the space closed by sectional door to avoid (both during the closing movement as during the opening movement) which fingers are crushed on the outside of the door, which could occur otherwise between the profiled portion of 20-21 shaped fastener (figure 6) of the end bottom 7 and the 10-11 junction portion by rounding of the upper end 6 during their mutual rotation.

Said inclination of the outermost part 5 (due to the innermost shaped part formed by the joints rounding 17, 18, 19 and 10, 11) into the space closed by the sectional door, also prevents fingers from being crushed inside the door, which could occur from another way between the shaped shaped fixing portion 31-32 of the lower end 7 and the internal profile 17-18-19 union by rounding of the upper end 6 during their mutual rotation. With with respect to the opening movement of the door, the crushing of the fingers inside the door until the angle between the panels is \ pi / 6 radians and, in any case, even if said contained angle reaches its maximum value of \ pi / 3 radians, at whose angle such profiles contain 31-32 and 17-18-19 already butt against each other, thus avoiding their additional mutual turn and ensuring that no single pair of panels 1 and 1 'can fall by separation and that a mutual rotation that exceeds said angle of \ pi / 6 radians does not generally occur at a height less than 2.50 meters, and hence the difficulty that can be achieved by fingers of a man. If the articulation of the panel is arranged by below 2.50 meters from the ground, there could be a risk of flattening. This risk may be: a) accepted by the manufacturer, which must be displayed by means of a warning at the door and in the manual operation and maintenance; b) or eliminated by applying a semi-rigid joint near the inner bottom edge 7 of the panel. Said meeting must extend properly beyond the Edge 19 of the consecutive panel.

In a second preferred embodiment, the panel sectional 1 for doors comprises aluminum profile bars extruded as shown in figures 7, 8, 9, being formed each individual panel 1 by the mutual union of a profiled bar upper 37, a lower profile bar 38 and a possible bar of reinforcement 39, and by a plurality of commercial elements interchangeable such as glass and aluminum holders 41, 42 for single and double crystals 40, rubber gasket supports external and internal 43, 42 and aluminum separators 45. As in the case of the previously described embodiment, the profile bar upper 37 has a substantially outermost circular part 5 'and a more inner narrow connection part 10', 11 ', 17', 18 ', 19'. The same applies to the lower profile bar 38 conformed as said recess profile (indicated here by 8). The arrangement is such that said ends 37, 38 can be coupled and articulate to matching ends of other aluminum panels identical extruded by a simple push fit or insert  one in another by longitudinal sliding, without the help of hinges or Other means of connection.

The profiled bar of soul stop and the bar profiled resting on the ground are indicated by 46 and 47, respectively, in Figure 7C.

To further facilitate the sealing of said panels (whether of profiled metal plate or, for example, of modified or not extruded aluminum or elastic material modified) and their mutual articulation, a plurality of elastic half rings 9 of self-lubricating material in said recess profiles 8, 38 for all or part of the panel length, being separated by a distance approximately equal to the height of panel 1.

As can be seen from figures 9A, B, the invention allows sectional doors to be formed of different composition (homogeneous or non-homogeneous). Specifically:

- Figure 9A shows an insulated door 53 (composed entirely of panels 1) with extreme elements lower and upper 57 formed from profiled bars of steel, housing, respectively, the contact gasket 58 with the floor and upper seal 59 core seal, both constructed soft rubber;

- Figure 9B shows an insulated door 54, but with a transparent chamber glass insert (composed of panels 1 and one or more profiled bar panel inserts of aluminum as in figures 8A, B) with lower end elements and upper 57 formed from profiled steel bars that respectively house the floor contact seal 58 and the upper sealing core gasket 59, both constructed of rubber soft;

- Figure 9C shows a door completely transparent not insulated 55 with a single glass (composed of aluminum panels with a single glass as in figure 8A), with lower and upper end elements 57 formed from profiled aluminum bars that respectively house the board 58 ground contact and upper sealing core gasket 59, both constructed of soft rubber;

- Figure 9D shows an insulated door fully transparent 56 with a camera glass (composite of the extruded aluminum insulated panels of figure 8B), with lower and upper aluminum end elements 57 housing respectively the floor contact gasket 58 and the gasket upper sealing core 59, both constructed of rubber soft.

A feature of the present invention is that each pair of consecutive panels, located in one position vertical, they are always in a state of equilibrium because the contact points within the mutual joint of the ends Profiles are symmetrical around the center of rotation, of what is derives a second advantage, although no less important, represented by the fact that the intrinsic weight of the panels It is discharged to the ground without generating transverse components undesirable to misalign profiles, as with panels current sectionals. In addition, when lateral forces arise additional panels generated by the external wind, these they spread evenly throughout the mutual joint of the panels to result in a smaller uniform deviation than that of the current panels. All this allows them to be built more resistant and durable doors over time.

In addition, with respect to aluminum panels extruded, if a pedestrian gate is to be built between constituent panels of a larger door, this will be easier of getting and will look better, since they can't have misalignment place between aluminum profile bars mounted along the perimeter of the pedestrian gate. Other advantage, although not least, is that the mounting of the blade Mobile sectional door is faster than with technique known current, which includes the assembly of the panels by of intermediate hinges, each fixed with four screws

The panel of the present invention allows it to be build sectional doors with improved features of air and water permeability, since the mutual articulation of panels, when in their normal vertical position, presents contact points in the mutual end portions 12, 22 and 16, 30 that always adhere longitudinally along the length full panel. This prevents the free passage of air and water between The exterior and the interior. In particular, although they could happen water particles through said portions 12, 22, these they would then fall out by gravity due to the arched shape of the joint located at a level higher than the point of water inlet

The thermal insulation provided by a door constructed with panels of the present invention is greater than the current commercial standard, since there are no thermal bridges in the joint between the
panels.

Due to its constructive simplicity, the invention presents few problems during the acquisition, construction, transport, handling, installation or lifting and offers simplicity of maintenance and lower costs compared to the standards
current.

The simplicity of production, the absence of intermediate hinges and the reduced assembly time on site result in an economy in the cost of the finished product, although at the same time ensuring better results in terms of appearance, performance, durability and safety.

Numerous modifications can be made to the previously described embodiments and their parts may be replaced by functionally equivalent ones, without departing of the scope of protection of the following claims.

Claims (8)

1. Panel (1, 1 ') for sectional doors, which it comprises a first profiled metal plate (2) and a second profiled metal plate (4) connected to each other to form a interspace (3) filled with an insulator, such as polyurethane foamed, and that has a body that has: a) a first longitudinal end (6) with a substantially outermost circular profiled part (5) and a innermost narrow connection part (10, 11, 17, 18, 19), and b) a second longitudinal end (7) opposite the first (6) and having a recess (8) of substantially circular narrow mouth shape (8A), centered in the middle plane of the panel (1, 1 ') and arranged for receiving said outermost part (5) of another panel coincidentally having identical ends, such as for coupling and articulating the panels (1) between them by simply inserting them by hand and pushing them in the direction of the panel height, characterized in that the recess (8) is symmetrical to said middle plane. 2. Panel (1) for sectional doors according to claim 1, characterized in that its first longitudinal end (6) for the union of two circumferential arcs (12) and (16) of the profiled plates joined together is obtained by a pair of tabs (13, 14) and connected by rounding to the panel body with the help of the shaped connection portions (10-11 and 17-18-19). 3. Panel (1) for sectional doors according to claim 1, characterized in that the end (7) provided with the recesses (8) is formed by the union of two circumferential arches (24) and (28) joined together by means of a pair of tabs (26, 27) and connected by rounding to the lower end of the panel (7) with the help of a plurality of portions of shaped fixing profiles (20-21-22-23 and 29-30-31-32) . 4. Panel (1) for sectional doors according to claim 1, characterized in that said shaped fixing profile portions (20-21-22-23 and 29-30-31-32) present in said second end (7) are shaped such that the initial portions (22-23 and 29-30) that form the access mouth are positioned below the center (25) of said recess (8) and have between them a minimum distance that is smaller than the diameter of the circumference of the outermost part (5), to embrace said part (5) when inserted and avoid its easy decoupling during normal operation of the sectional door. 5. Panel (1) for sectional doors according to claim 1, characterized in that said outermost part (5) is slightly inclined towards the interior of the space closed by the sectional door to avoid, when in said position, the crushing of the fingers on the outside of the door between a shaped shaped fixing portion (20-21) of the second end (7) and the rounding profile (10-11) of the first upper end (6) during their mutual rotation. 6. Panel (1) for sectional doors according to claim 1, characterized in that said more outer part (5) are inclined inwardly closed by the sectional door space, preventing in said position the crushing of the fingers by the inside of the door between the shaped shaped fixing portion (31-32) of the lower end (7) and the internal profile (17-18-19) of rounding of the upper end (6) during their mutual rotation, avoiding said crushing of the fingers until the angle between the panels is \ pi / 6 radians, said angle assuming at most the value of \ pi / 3 radians, at whose angle said profiles (31-32) and (17-18-19) they stop and against each other, thus avoiding their additional mutual turn and ensuring that the panels (1) cannot possibly fall. 7. Panel (1) for sectional doors according to claim 1, characterized in that a plurality of half - rings (9) of self - lubricating material can be inserted into the recess (8, 38) by simple fitting manual thrust in the direction of height panel, being spaced at a distance approximately equal to the height of the panel (1). 8. Sectional door formed from panels according to one or more of the preceding claims.