WIND SAFE DOOR
First Claim
1. A motorized door for closing an area at least partially defined by a frame, said motorized door comprising:
- (A) a motorized driving mechanism suitable for moving a leading edge of a shutter between an open position (z=1) and a closed position (z=0) in a first direction (α
) to close said area defined within said frame and in a second direction (β
) to open said area;
(B) a detection cell suitable for detecting an accidental event (eI), wherein Iε
, during a moving of the leading edge of the shutter in the first direction (α
) to close said area, said accidental event a potential threat to a good functioning of the motorized door,(C) a processing unit programmed to trigger the following operations upon reception of a signal from the detection cell that an accidental event has occurred, during the moving in the first direction (α
) of the shutter from the open position (z=1) towards the closed position (z=0);
(a) define I=0 at t=0, wherein I is the number of accidental events (eI) detected by the detection cell during the moving of the leading edge of the shutter in the first direction (α
) to close said area, and t=0 defines the time the shutter starts moving from the open position (z=1);
(b) in case of a detection of an (M+i)th accidental event (e(M+i)), wherein Mε
, iε
, and i>
0, memorize the number of accidental events, I=(M+i), and(c) stop the movement of the leading edge in the first direction (α
), and reverse said movement into the second direction (β
); and
(i) if the number of accidental events, I=(M+N), wherein N is a predefined number of wind-like repetitions, continue the movement into the second direction (β
) until the leading edge reaches its open position (z=1) and keep the shutter in the open position;
or(ii) if the number of accidental events, I<
(M+N), after a brief reverse time, Δ
t, stop said movement in the second direction (β
) and reverse the movement back into the first direction (a) towards the closed position (z=0) of the shutter; and
(d) after step (c)(ii), in case an (M+i+1)th accidental event (e(M+i+1)) is detected during the movement of the leading edge into the first direction (α
), memorize the number of accidental events, I=M+i+1 and repeat step (c).
1 Assignment
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Accused Products
Abstract
The present invention concerns a motorized door for closing an area (3) at least partially defined by a frame, said Motorized door comprising: (A) a motorized driving mechanism (10) for moving a shutter between an open position (z=1) and a closed position (z=0) in a first direction (α) to close said area defined within said frame and in a second direction (β) to open said area; (B) a detection cell (5, 6) suitable for detecting an accidental event (eI), during the motion of the shutter. The motorized door further comprises a processing unit programmed to trigger a wind related safety function avoiding the yo-yo effect in case strong winds triggered the erroneous detection of an accidental event by the detection cell, said wind related safety function comprising the following steps: (C) a processing unit (CPU): (a) stop the movement of the shutter in the first direction (α), and reverse said movement into the second direction (β) and, after a brief reverse time, Δt, of the order of 0.8 to 3.0 s, (b) stop said movement in the second direction (β) and reverse the movement back into the first direction (α) towards the closed position (z=0) of the shutter.
14 Citations
11 Claims
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1. A motorized door for closing an area at least partially defined by a frame, said motorized door comprising:
-
(A) a motorized driving mechanism suitable for moving a leading edge of a shutter between an open position (z=1) and a closed position (z=0) in a first direction (α
) to close said area defined within said frame and in a second direction (β
) to open said area;(B) a detection cell suitable for detecting an accidental event (eI), wherein Iε
, during a moving of the leading edge of the shutter in the first direction (α
) to close said area, said accidental event a potential threat to a good functioning of the motorized door,(C) a processing unit programmed to trigger the following operations upon reception of a signal from the detection cell that an accidental event has occurred, during the moving in the first direction (α
) of the shutter from the open position (z=1) towards the closed position (z=0);(a) define I=0 at t=0, wherein I is the number of accidental events (eI) detected by the detection cell during the moving of the leading edge of the shutter in the first direction (α
) to close said area, and t=0 defines the time the shutter starts moving from the open position (z=1);(b) in case of a detection of an (M+i)th accidental event (e(M+i)), wherein Mε
, iε
, and i>
0, memorize the number of accidental events, I=(M+i), and(c) stop the movement of the leading edge in the first direction (α
), and reverse said movement into the second direction (β
); and(i) if the number of accidental events, I=(M+N), wherein N is a predefined number of wind-like repetitions, continue the movement into the second direction (β
) until the leading edge reaches its open position (z=1) and keep the shutter in the open position;
or(ii) if the number of accidental events, I<
(M+N), after a brief reverse time, Δ
t, stop said movement in the second direction (β
) and reverse the movement back into the first direction (a) towards the closed position (z=0) of the shutter; and(d) after step (c)(ii), in case an (M+i+1)th accidental event (e(M+i+1)) is detected during the movement of the leading edge into the first direction (α
), memorize the number of accidental events, I=M+i+1 and repeat step (c). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11)
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10. A motorized door according to wherein,
at least one lateral edge of the shutter comprises a bead or a series of adjacent teeth, slideably engaged in an opening of the corresponding guiding rail and which can be extracted therefrom under the action of a defined pulling force directed transversely to the guiding rail provoked for example by an impact upon closing the shutter, and wherein: the motorized door further comprises a means for reinserting into the guiding rail opening the bead series or adjacent teeth that has been extracted therefrom, this means comprising a guide member which is positioned facing the guiding rail opening and which is designed so that, while the shutter is being opened, it deflects toward the guiding rail opening the bead or series of adjacent teeth that has been extracted from this guiding rail opening, wherein the guide member comprises at least one pair of rollers having fixed axes of rotation which are located symmetrically on each side of the mid-plane of the shutter, in the same plane substantially perpendicular to said mid-plane of the shutter and are directed obliquely with respect to said mid-plane of the shutter so that the rollers converge toward the bottom of the guiding rail opening and roll, as the shutter is moved in the opening direction, along the bead which has been extracted from the guiding rail opening, pushing it into the guiding rail opening.
Specification