FR2919659A1 - Construction installation for lift-up garage door, has chamber allowing extended positioning of lintel, reception of motor unit formed by reversible moto-reducer, and insertion of transmission control unit to allow lifting of apron of door - Google Patents

Abstract

The installation (E) has two vertical uprights shaped and arranged to independently receive a metallic horizontal lintel (22) and a tubular transmission shaft (23) in their upper parts, where the lintel has an elastomer band. The upright (20) has vertical chambers separated by a parallel intermediate wall. The chambers respectively authorize the positioning of the lintel and insertion of a transmission control unit to allow lifting of an apron of a lift-up door. One of the chambers allows extended positioning of the lintel and reception of a motor unit formed by a reversible moto-reducer (27).

Description

CONSTRUCTION INSTALLATION FOR UP AND DOWN GARAGE DOORS

  The invention relates to the technical sector garage doors and the like used in the context of any type of building constructions.

  It will be recalled beforehand that each installation comprises a bearing structure of the door with a frame (1) consisting of two vertical uprights (2 to 3) profiled connected by a horizontal upper lintel (4). This frame is fixed position with respect to an existing construction such as a garage or the like. The door (5) is made in any known manner from rigid metal sections held in a frame, the assembly constituting the deck. To ensure the tilting of the deck in a raising or lowering direction, the latter is arranged in the upper part of its side edges with rolling means of the roller type capable of moving along profiled rails (7 to 8). 20 forming a guide rail disposed on either side of the door opening on a support plane. ceiling or wall in high position. Furthermore, the apron has, along its side edges, other guide means associated with lifting or lowering means. One of the lateral uprights is arranged with a supporting structure of a geared motor unit (9) whose drive axis is horizontal. This axis is coupled to a transmission shaft (10) of great length disposed from and along the upper lintel. This transmission shaft protrudes at the end of the lintel and cooperates with endless conveyor chains disposed on either side of the door, the latter being connected to a fixed point to the deck.

  In order to take account of the heaviness of the deck and the thrust load necessary to make the closing opening phases easy, either a counterweight or, and around the transmission shaft, a torsion spring (11) is available. , and more particularly an energy absorber means in the form of a prestressed spring which allows easy handling. Such provisions have been described in French Patent No. 2,630,491 operated by the applicant. This operation by the applicant is very satisfactory in terms of the technical quality of the installation and the safety of use, and the use of low-power geared motor group.

  On the other hand, and independently of the fulfillment of the aforementioned technical criteria, a new constraint appears to be that of the economic cost of the installation and the installation time required for the installation.

  Another disadvantage lies in the fact that the new European standards 13241 and following, which replaced the French standards in 2005, oblige to protect the secondary edges against the risks of shears. Current techniques are particularly unsuitable in the case of door motor swing with respect to this risk.

  Another disadvantage lies in the fact that, in this type of engine equipped with reversible gear motor, the lock is provided by a strike or electric lock or suckers whose implementation is often difficult.

  Another disadvantage lies in the fact that, in view of the curvature of the rail at the end of closing of the deck, the weighed counterweight no longer balances the weight of the deck, the latter before, in this final position, to support the entire weight of the deck. apron while, when the roller rolls in the horizontal part of the rail, it supports only half.

  Another disadvantage is the complexity of certain mechanisms related to driving the drive shaft and the need to use load compensation springs.

  With the exception of the energy absorber device described in French Patent No. 2,630,491, all equipment of the same type operates in a similar manner.

  Another disadvantage also lies in the conditions of transport and storage of all the components of the installation which generates a large footprint.

  The applicant's approach was therefore, based on all these considerations, to rethink the conditions of the installation of the overhead door, in order to save money, simplify assembly, reduce the weight of off-deck installation, an improvement in the storage and transportation of the components of the installation.

  Another goal sought is the improvement of the assembly in terms of time reduction and maneuverability.

  These and other goals will be apparent from the rest of the description.

  According to a first characteristic, the construction system for garage doors and the like with a view to their lifting or tilting of the type comprising profiled vertical uprights connected by a horizontal lintel, the door apron comprising means in the form of rollers capable of move along profiled rails forming guide ramp disposed on either side of the door opening in the up position, the apron having along its side edges guide means associated with lifting means or lowering comprising cables and counterweight, a motorized transmission shaft disposed along the lintel being associated with the lifting and lowering mechanism of the door leaf characterized in that it comprises two vertical profiled uprights and arranged to receive, in their part superior and independently, a horizontal lintel and a tubular transmission shaft disposed parallel to the lintel, and in that the vertical upright is arranged with two vertical chambers separated by a parallel intermediate wall, the first chamber being arranged to allow, on the one hand, the positioning of the lintel and, on the other hand, the insertion of transmission control means to allow lifting and lifting of the deck of the overhead door, and in that the second chamber allows positioning in extension of the upper lintel, receiving a reversible gear motor group.

  These and other characteristics will be apparent from the rest of the description.

  For fixing the object of the invention illustrated in a non-limiting manner to the figures of the drawings in which: - Figure 1 is a view of a building installation for garage doors according to the prior art defined by French Patent No. 2,630. 491. Figure 2 is a partial view in perspective of one side of the building installation for garage doors according to the invention. - Figure 3 is a partial view on a large scale according to Figure 2 of a part of the building installation before assembly. Figure 4 is a view according to Figure 3 after assembly. FIG. 5 is a plan view according to FIG. 3. FIG. 6 is a rear view of the part of the building installation of FIG. 3. FIG. 7 is a schematic view illustrating the other side. of the installation including the mechanism for lifting or lowering the deck. - Figure 8 is a side view showing the movement kinematics of the deck. - Figure 9 is a partial view illustrating the upper part of the lifting mechanism of the deck being in relation with the nacelle acting counterweight. - Figure 10 is a partial view on a large scale showing, in close phase of the closure of the deck, the position of a locking member of the transmission chain. - Figure 11 is a view according to Figure 10 showing the beginning of the blocking of the transmission chain. - Figure 12 is a view according to Figure 11 showing the final blocking of the transmission chain and final closing of the door leaf. In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in the figures of the drawings.

  To facilitate understanding of the invention, the apron is not shown and is designed in any known manner.

  The building installation for garage doors, according to the invention, is referenced as a whole by (E). It comprises two vertical uprights (20-21) which are made of aluminum profiles and arranged to receive, in their upper part and independently, a horizontal lintel (22) and a tubular transmission shaft (23) arranged parallel to the lintel . Advantageously, the two amounts are of identical configuration. The vertical upright (20) is more particularly arranged with two vertical chambers (C1-C2) separated by a parallel intermediate wall (24), the first chamber (C1) being arranged to allow, on the one hand, the positioning of the lintel (22) and, on the other hand, the insertion of transmission control means to allow the lifting and lifting of the deck of the overhead door. The second chamber (C2) allows positioning in extension of the upper lintel 25, the reception of a motor group consisting of a reversible gear motor (27) and also complementary means, lighting for example.5 More particularly, said part upper panel (20) has on its front wall, a cutout (20a) profiled for the passage of the lintel, then a window (24a) on the intermediate wall (24), and a window (20b) on the bottom face . Thus, the lintel (22) is perfectly maintained. Said lintel is thus made from a section of square or rectangular section of metal material or other hollow internally. Said lintel can be arranged from its underside with a strip of elastomeric material (45), for example, acting as a seal and also noise damper when the door apron is in the raised vertical position.

  According to an essential characteristic of the invention, the transmission shaft (23) is tubular, that is to say hollow inside, which gives it a great lightness in laying and handling. This transmission shaft is fitted at each of its ends on guide bearings (25). These guide bearings (25) are arranged with a keying for example to allow, after introduction of the transmission shaft, itself arranged with an inner groove, its rotation drive. One of the bearings (25) is itself mounted on a drive shaft (26) being keyed (25a) or the like. This shaft (26) is associated with the aforementioned motor unit (27) by any known transmission means, these being integrated in the chamber (C2) of the upright (20), the intermediate wall (24) being arranged with openings and cutting passage of the transmission elements. The engine block is itself fixedly mounted on a fixed support (28) secured in any appropriate manner in the upright (20). The drive shaft (26) thus receives, adjacent to the bearing, a pinion (29) which is capable of cooperating with a toothed wheel (30) associated with the lifting or lowering mechanism of the deck. This mechanism uses means known in their function with transmission cables and counterweight and, for general understanding of the invention, it has been illustrated in Figure 8 of the drawings.

  In a manner known also, the lifting or lowering mechanism of the deck is integrated in the upright (20) vertical, while in the amount (21) can be arranged the same mechanism or only the tow rope depending on the counterweight basket used.

  Referring to Figure 8, the toothed wheel (30) is mounted on an axis allowing the meshing of a chain (31). It has a first end (31.a) fixed in the upper part of the upright (20 or 21) and another end (31.b) in the lower part of said upright. A strand of the chain is secured to a hooking means (32) connected to the lower part of the deck so as to cause the movement thereof during the movement of said chain. A counterbalance nacelle (33) is movable along the vertical post. A return means (34) is associated with the nacelle and allow the passage of the chain and, therefore, the suspension of said nacelle. A tensioning damper (35) is provided in the lower part of the nacelle. A sprocket (36) of the chain is in the lower part of the amount. Conventionally, the situation of the reversible geared motor unit (27) drives the rotation of the transmission shaft (23) and the operation of the lifting or lowering mechanism of the deck by the movement of the chain (31). and also the counterbalance nacelle (33). Figure 7 shows the vertical upright (21) with a guide ramp (37) of the rollers associated with the apron in its upper part. The ramp is curved at its end (37a) in a known manner to facilitate the movement of the deck. It is also shown, schematically, the electronic card (38) and lighting and / or safety means (39) integrated in the vertical upright.

  According to a particular characteristic of the invention, in relation to the counterbalance nacelle, FIGS. 9 to 12 show a blocking member (47) whose function is to transfer the weight of the counterbalance nacelle (33) on the strand. chain balancing the apron and eliminating at the same time the assembly moufflage classic. For this purpose, in extension of the axis of the return means (34) constituted by a pinion is arranged, hinged, a rocker (44) with two parallel wings (44a) of triangular configuration and whose lower part receives an axis of link (46) secured by welding or otherwise. Furthermore, on the strand (31c) of chain, defined between the end (3la) of attachment and the pinion (34), is provided the locking member in the form of a lug (47) constituting, in a way , a link in the chain (31).

  This lug (47) externally has a ramp profile (47a) and, internally, a hook shape (47b). During the closing movement of the deck, causing the lifting up of the nacelle, said lug comes closer to the rocker articulated on the pinion and, by contact with the axis (46), causes pivoting of the rocker and the inserting its hook portion (47b) into the adjacent link of the chain (31). This lug locks on the pinion (34) of the nacelle and allows the transfer of the weight of the counterbalance nacelle on the chain (31).

  This arrangement is particularly advantageous. Figure 6, the gear motor unit (27) is shown as a whole. Its particular characteristics are technology known to those skilled in the art. However, according to a particular provision of the invention, there is installed on the output shaft of the rotor, a current-driven electric brake and an electronic detection system for controlling the rotation or not of the rotor. These means have been integrated in the geared motor group (27). It is represented by (41) the support of a cell (42) or detector which can thus be positioned at the location of the referenced amount (43).

  The advantages of the installation according to the invention are very numerous. First of all, because of its design, it is very easily removable, by its amounts (20 to 21), its lintel (22) and transmission shaft (23). It is lighter and largely due to the new and unexpected choice to make the drive shaft with a hollow profile. In the context of storage and transport, it is even possible to protect the drive shaft (23) by inserting it into the lintel (22) hollow too to protect it. This implementation of the invention thus makes it possible to eliminate the energy absorption spring and the complex associated mechanical means to be used and of a consequent weight.

  The solution provided by the invention makes it possible to offer customers a less expensive installation. In addition, it offers other possibilities of storage and arrangement of mechanisms with better protection to the external environment. The editing time is also improved and reduced.

Claims (1)

  -1- Installation of construction for garage doors and the like for their lifting or tilting of the type comprising shaped vertical uprights connected by a horizontal lintel, the door apron comprising means in the form of rollers capable of moving along profiled rails forming guide ramp disposed on either side of the door opening in the up position, the deck having along its side edges guide means associated with lifting or lowering means comprising cables and counterweight, a motorized transmission shaft disposed along the lintel being associated with the lifting and lowering mechanism of the door leaf characterized in that it comprises two vertical uprights (20 to 21) profiled and arranged to receive, in their top and independently, a horizontal lintel (22) and a tubular transmission shaft (23) arranged parallel to the lintel, and in that the vertical upright (20) is arranged with two vertical chambers (C1-C2) separated by a parallel intermediate wall (24), the first chamber (C1) being arranged to allow, on the one hand, the positioning of the lintel (22) and, secondly, the insertion of transmission control means to allow lifting and raising of the apron of the overhead door, and in that the second chamber (C2) allows positioning in extension the upper lintel, the reception of a motor unit of the reversible gear motor type.- 2 - Installation, according to claim 1, characterized in that the upper portion of the upright (20) has, on its front wall, a cutout (20a ) profiled for the passage of the lintel, then a window (24a) on the intermediate wall (24), and a window (20b) on the bottom face for holding the lintel (22). 3-installation, according to claim 2, characterized in that the lintel is made from a section of square or rectangular section of metal material or other hollow internally. -4Installation according to claim 2, characterized in that the lintel is arranged from its underside with a strip of elastomeric material (45) acting as a seal and also damping noise when the door apron is in raised vertical position. - 5Installation according to claim 1, characterized in that the uprights (20 to 21) are identical configuration and profile. -6 Installation according to claim 1, characterized in that the transmission shaft (23) is tubular and fits at each of its ends on guide bearings (25), and in that these guide bearings (25) are arranged with a keying to allow, after placement of the drive shaft, itself arranged with an internal groove, its rotational drive, and in that one of the bearings (25) is itself mounted on a drive shaft (26) by being keyed (25a) or the like, and in that this shaft (26) is associated with the engine block (27) by any known transmission means integrated in the chamber (C2) of the upright (20), the intermediate wall (24) being arranged with openings and cut-out passage of the transmission elements. 7-installation, according to claim 6, characterized in that the drive shaft (26) thus receives, adjacent to the bearing, a pinion (29) which is capable of cooperating with a toothed wheel (30) associated with the mechanism of lifting or lowering the apron. - 8- Installation, seilon claim 7, characterized in that the toothed wheel (30) is mounted on an axis by allowing the meshing of a chain (31) whose first end (31.a) fixed in the part upper of the upright (20 or 21) and another end (31 .b) in the lower part of said upright, and in that one strand of the chain is secured to an attachment means (32) connected to the lower part. of the apron, and in that a counterbalance nacelle (33) is movable along the vertical upright, and in that a return means (34) is associated with the nacelle and allows the passage of the chain and the suspension of said nacelle, and in that a pinion gear (36) of the chain is in the lower part of the upright. 9-installation, according to claim 1, characterized in that the reversible gear motor group includes, on the output shaft of the rotor, a current-driven electric brake and an electronic detection system to control the rotation or direction of the rotor.-10- Installation according to claim 8, characterized in that it comprises a locking member (47) mounted on the strand (31c) of the chain (31) between the upper end wall (3la) and the return means (34) consisting of a pinion, said member being capable of cooperating with a rocker (44) mounted articulated on the axis of the return means (34) to ensure, in the situation of complete closure of the deck, the transfer weight of the counterbalance nacelle (33) on the chain strand balancing the apron. -11- Installation according to claim 10, characterized in that the latch (44) mounted on the axis of the deflection means (34) comprises two parallel wings (44a) of triangular configuration and whose lower part receives an axis of link (46), and in that the locking member is a pin constituting a chain link (31) having, externally, a ramp profile (47a) for being in contact with the connecting pin (46). and, internally, a hook shape (47b) for anchoring in the adjacent link of the chain in the final closing phase of the deck. -12- Installation, according to claim 10, characterized in that it comprises a tensioning cooler (35) in the lower part of the counterbalance nacelle (33).