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 (a) 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 I∈
, during a moving of the leading edge of the shutter in the first direction (a) 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 M∈
, i∈
, 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-related events and wherein N>
0, 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 (α
) 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 (e1), 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.
20 Citations
12 Claims
-
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 (a) 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 I∈
, during a moving of the leading edge of the shutter in the first direction (a) 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 M∈
, i∈
, 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-related events and wherein N>
0, 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 (α
) 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, 10, 11, 12)
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Specification