FR3130868A1 - Motorized overhead door set with vertical opening - Google Patents

Abstract

The invention relates to a motorized and vertically opening overhead door assembly (1) comprising: - a door (2) movable between an open position and a closed position, said door comprising:- a first upright (3) and a second upright (4), between which the door (2) is movable;- a motor (5) driving in rotation a connecting rod (6) connected to a lower part of the door (2) for the passage from the open position to the closed position of the door (2);- guide means (7) of an upper part of the door (2) along rails (8) extending orthogonally from an upper end of the uprights (3, 4). the invention, the motor (5) comprises an output shaft (51) positioned along and against a rear face of the first upright (3) and within the template of said first upright (3). Figure for abstract: Fig. 8

Description

Motorized overhead door set with vertical opening

The present invention relates to the technical field of motorized overhead door assemblies for opening, closing, locking and unlocking the door assembly, in particular for garage or box doors.

Prior art

It is known from document FR3020085 a so-called overflow overhead door assembly, such as garage doors in order to adopt an open position or a closed position, providing a small footprint.

However, this type of set is simply manually operated, making their use laborious and inconvenient.

In addition, there is a garage door assembly comprising a rotary motor called an operator or conveyor fixed to the ceiling, in the axis of the door leaf, in order to carry out the automatic opening and/or closing operations of the door. .

In practice, we find that such a set is bulky and requires increasing the space available between the garage ceiling and the frame of the door or apron. In addition, the installation requires two operations, one for installing the door, and then one for installing the operator.

The need for a minimum height to install devices according to the prior art prevents the installation of these assemblies in certain structures, in particular due to a lack of space.

Thus, to solve this problem, the document CN214303490 proposes to install the motorization driving the apron of the garage or box door parallel to the guide rails between the crosspiece located above the apron, and the crosspiece maintaining the rails at the back of the garage door.

In addition, the assembly comprises a rotary motor whose output shaft is positioned horizontally and in a plane perpendicular to the plane of the apron to directly actuate a connecting rod connected to the apron in order to carry out the automatic opening and closing operations of the apron. .

However, such an assembly has a size going beyond the frame of the frames, so as to cause, for lack of space, an impossibility of installation of the assembly.

In addition, the use of a motorized door assembly requires the installation of a cumbersome and complex locking and unlocking system which adds to the volume and cost of the assembly.

In addition, the opening and closing movements of the door exert a force with too great a lever arm on the motor shaft, reducing its reliability, all the more in the event of an unauthorized opening attempt.

One of the aims of the invention is therefore to propose a motorized overhead door assembly with vertical opening, in particular for a garage or box, which can meet all of the drawbacks mentioned above in the prior art.

In particular, the objective of the present invention is to provide an overhead door assembly having the smallest possible size, not exceeding the size of the door frames, while having a reliable, durable and economical mechanical design.

To this end, a motorized overhead door assembly with vertical opening has been developed comprising, in a known manner, a first upright and a second upright, between which the door is mounted to move between an open position and a closed position. .

The assembly further comprises a motor rotating a connecting rod connected to a lower part of the apron for passage from the open position to the closed position of the door, and means for guiding an upper part of the door along of rails extending orthogonally from an upper end of the uprights.

According to the invention, the motor comprises an output shaft positioned along and against a rear face of the uprights, heard on the rail side, and in the template of said first upright.

In this way, the fact of using a motor that does not exceed the template of the upright of the garage door or box, makes it possible to reduce the size of the assembly, and to install it when the available width is reduced. In addition, the fact that the motor output shaft is positioned along the upright increases its reliability, especially when opening the door manually, a situation in which the user tends to force the door. and consequently on the motor, all the more so in the event of a break-in attempt.

Finally, the use of a reduced number of parts and the incorporation of motorization makes it possible to reduce the overall cost of manufacturing and installing the invention.

By the expression, "positioned along and against a rear face of the first upright", is meant to designate the fact that the motor is positioned vertically and behind the door, on the side of the rails.

According to a particular embodiment, and in order to be able to lock and unlock the assembly automatically, the first upright comprises a U-shaped cross-section, and the motor is a linear motor driving a rack mounted sliding in the U-shaped section of the first amount, and intended to rotate a pinion integral with the connecting rod. The rack and the linear motor are then positioned, at least in part, in the U-section of the upright, which further reduces the size of the assembly.

According to a preferred embodiment, the motor and the rack form an assembly mounted with the ability to slide in the U-shaped section of the first upright, said sliding being lockable by a locking element mounted pivoting between a locking position in which it serves sliding abutment, and an unlocking position.

This makes it possible in particular to be able to disengage the motor and manually tilt the door.

According to a particular embodiment, the blocking element is connected to a lock by means of a cable, the actuation of the lock causing the blocking element to pivot into the unlocked position.

Thus, the user can directly unlock the assembly manually from the outside without requiring other access.

Preferably, the blocking element is automatically returned to the locking position, in particular by means of a counterweight.

According to another particular embodiment, the blocking element is pivoted into the unlocking position by being pushed by a bar connected to a lock.

In this embodiment, the blocking element is preferably held both in the unlocked position and in the locked position by means of an elastic return member. Said elastic return member is attached, on the one hand, to the first upright and, on the other hand, to the blocking element. The elastic return member extending along an axis orthogonal to the pivot axis of the locking element and so as to pass on either side of the pivot axis of the locking element, when the passage of the blocking element from a locking position to an unlocking position.

In order to obtain a greater torque to facilitate the driving in rotation of the connecting rod, the pinion is fixed to the connecting rod by means of a C-shaped part comprising a first branch fixedly inserted in the pinion and defining a axis of rotation of the connecting rod, and a second branch connected to one end of the connecting rod, which makes it possible to obtain a lever arm effect.

To retain the weight of the door when it is closed, the second leg of the C-shaped piece is connected to a spring system attached to the lower part of the first upright.

In a preferred embodiment, the sliding of the rack is guided by suitable guide means, such as rollers.

In a particular embodiment, the assembly comprises a second motor rotating a second connecting rod connected to a lower part of the door. The second motor also includes an output shaft positioned along the second post, at a rear face of the second post.

Thus, the two motors contribute to the opening and closing of the door of the assembly. The two motors and their operations are synchronized via an electronic card.

Other advantages and characteristics will emerge better from the following description, given by way of non-limiting example, of the device according to the invention, from the appended drawings in which:

is a representation, in perspective, of the overhead and vertically opening door assembly according to the present invention, with the door closed.

is a representation, similar to the , with the door open.

is a representation in perspective, in detail on one of the uprights representing the blocking element and the motor, in the unlocked position.

is a representation, similar to the , in locked position.

is a perspective representation of the door assembly, in detail on the parts actuating the opening and closing of the door, with the door closed and locked.

is an isolated perspective representation of an upright with the parts for opening and closing the door, in door closing mode.

is an isolated perspective representation of the rack and pinion with a depiction of their respective movement.

is a representation similar to the , in the door open position.

is a representation of a second embodiment of the invention.

is a representation similar to that of the and illustrates in detail the drive of the pinion connected to the connecting rod.

is a representation similar to that of the , in detail on the motor sliding blocking element

Claims (11)

Set (1) of motorized overhead door with vertical opening comprising:
- a first upright (3) and a second upright (4), between which the door (2) is movably mounted a door (2) between an open position and a closed position;
- a motor (5) driving in rotation a connecting rod (6) connected to a lower part of the door (2) for the passage from the open position to the closed position;
guide means (7) of an upper part of the door (2) along rails (8) extending orthogonally from an upper end of the uprights (3, 4);
characterized in that the motor (5) comprises an output shaft (51) positioned along and against a rear face of the first upright (3) and within the template of said first upright (3). Assembly (1) according to Claim 1, characterized in that the first upright (3) comprises a U-shaped cross-section, and the motor (5) is a linear motor driving a rack (9) slidably mounted in the U-shaped section of the first upright (3), and intended to rotate a pinion (10) secured to the connecting rod (6). Assembly (1) according to Claim 2, characterized in that the motor (5) and the rack (9) form an assembly mounted with the ability to slide in the U-shaped section of the first upright (3), said sliding being lockable by a locking element (11) pivotally mounted between a locking position in which it acts as a sliding stop, and an unlocking position. Assembly (1) according to Claim 3, characterized in that the locking element (11) is connected to a lock by means of a cable, the actuation of the lock causing the pivoting of the locking element (11) in unlocked position. Assembly (1) according to Claim 4, characterized in that the locking element (11) is automatically returned to the locking position, in particular by means of a counterweight (112). Assembly (1) according to Claim 3, characterized in that the blocking element (11) is pivoted into the unlocking position by being pushed by a bar connected to a lock. Assembly (1) according to Claim 3, characterized in that the blocking element (11) is held both in the unlocking position and in the locking position by means of an elastic return member attached to one hand to the first upright (3) and, on the other hand to the blocking element (11); the elastic return member (15) extending along an axis orthogonal to the pivot axis (115) of the blocking element and passes on either side of said pivot axis (115) during the passage of the blocking element (11) from a locking position to an unlocking position. Assembly (1) according to Claim 2, characterized in that the pinion (10) is integral with the connecting rod (6) by means of a C-shaped part (13) comprising a first branch (131) fixedly inserted in the pinion (10) and defining an axis of rotation of the connecting rod (6), and a second branch (132) connected to one end of the connecting rod (6) Assembly (1) according to Claim 8, characterized in that the second branch (132) of the C-shaped part (13) is connected to a spring system (14) attached to the lower part of the first upright (3). Assembly (1) according to Claim 2, characterized in that the sliding of the rack (9) is guided by guide means, preferably rollers (92). Assembly (1) according to one of the preceding claims, characterized in that a second motor (5) rotating a second connecting rod connected to a lower part of the door (2), comprises an output shaft positioned along the second upright (4), at a rear face of the second upright (4).