Disclosed is a door system comprising: at least one travelable door element; at least one running rail for guiding the door element; and at least one light barrier element for detecting a free travel path of the door element, wherein the at least one running rail has a cut-out at or in which the at least one light barrier element is fastened.

An electric apparatus and a control method thereof The electronic apparatus including a housing; a first door rotationally arranged on one side of the housing; a second door rotationally arranged on the other side of the housing; a first motor operationally connected to the first door; a second motor operationally connected to the second door; a first motor driver electrically connected to the first motor; a second motor driver electrically connected to the second motor; and a processor electrically connected to the first motor driver and the second motor driver, wherein the processor may control the first motor driver to drive the first motor to close the first door at a time different than a time the second door that is connected to the second motor driven by the second motor driver closes.

An example retention assembly has a motor assembly and a self-locking worm drive coupled thereto. A cam is fixed to a worm gear of the worm drive. The retention assembly has an actuation shaft including a follower. The actuation shaft is displaceable over a displacement range via rotation of the cam. The retention assembly has a securement member with a securement member follower, the securement member coupled to a portion of the actuator shaft. The retention assembly has a housing cam included as part of the retention assembly housing and against which the securement member follower is biased. The securement member are in an open state when the actuation shaft is in a first position. The securement member swings outward to a retaining position as the actuation shaft is moved to a second position.

A refrigerator comprising a door rotatable about a hinge shaft. A door opening and closing apparatus comprises a drive motor, a first gear configured to receive power from the drive motor, a second gear, spaced apart from the first gear, configured to transmit a rotational force to the hinge shaft, a clutch gear configured to be rotatable around a rotation axis of the first gear, and configured to transmit power of the first gear to the second gear based on a position of the clutch gear around the rotation axis of the first gear, and a position detection sensor configured to detect the position of the clutch gear so that while the clutch gear is at the position, the clutch gear transmits the power received from the first gear to the second gear which transmits the rotational force to the hinge shaft to open and close the door.

The present invention relates to a method for determining the door position in a door system which has a rail for guiding a movable door element and a sensor element (10) for detecting a free movement path of the door element (50), the method comprising the steps of: detecting the state of the at least one sensor element (10), which can either be free of the door element (50) or covered by the door element (50), such that, in the event of a change in the state of the sensor element (10), the arrangement position of the sensor element (10) corresponds to the door element (50), and a door control lines the door position with the aid of this information.

A retention assembly may comprise a motor assembly and a self-locking worm drive coupled thereto. A cam may be fixed to a worm gear of the worm drive. The retention assembly may further comprise an actuation shaft including a follower. The actuation shaft may be displaceable over a displacement range via rotation of the cam. The retention assembly may further comprise a securement member with a securement member follower, the securement member coupled to a portion of the actuator shaft. The retention assembly may further comprise a housing cam included as part of the retention assembly housing and against which the securement member follower may be biased. The securement member may be in an open state when the actuation shaft is in a first position. The securement member may swing outward to a retaining position as the actuation shaft is moved to a second position.

An improved method and an improved apparatus for operating an automatic door system are distinguished by the following features, inter alia: — a sensor device (9) is used, which implements a monitoring region (19) assigned to and/or disposed upstream of the leaves (1; 1a, 1b) for the detection of objects (P, G) which are situated and/or moving in said monitoring region (19), — by means of the sensor device (9) and/or by means of the control and/or evaluation device (11), an object (P, G) situated in the monitoring region (19) is detected with regard to the position and direction of movement of said object and also with regard to the width, size and/or contour (K) or overall contour (23) of said object, and — depending on the movement-dependent position and direction of movement (21) and also the width, size and/or contour (K) or overall contour (23) of the detected object (P, G), the at least one leaf (1; 1a; 1b) is moved, in particular opened, readjusted and/or closed, in an object-related manner.

A sectional door operator system (1) for opening and closing an opening (2) is provided herein. The sectional door operator system (1) comprises a door (8) arranged to be moved between an open (O) and closed (C) position and comprising a plurality of horizontal and interconnected sections (9a-e), and a door frame (3) comprising a first frame section (4) at a first side (5) of the opening (2) and a second frame section (6) at a second side (7) of the opening (2), wherein the plurality of horizontal and interconnected sections (9a-e) are connected to the door frame (3). The sectional door operator system (1) further comprises a drive unit system (100) mounted on a section (9e) of the plurality of horizontal and interconnected sections (9a-e), wherein the drive unit system (100) is arranged to move the sectional door (8) from the closed position (C) to the open position (O), wherein the drive unit system (100) comprises at least a first drive unit (10a) comprising a first motor (11a) and at least a second drive unit (10b) comprising a second motor (11b), and wherein the first drive unit (10a) and the second drive unit (10b) are mounted at different vertical sides of the horizontal and interconnected section (9e). Further, the sectional door operator system (1) comprises at least one sensor device (40a, 40b) mounted on a section (9e) of the plurality of horizontal and interconnected sections (9a-e), and at least one control unit (20a, 20b) being in operative communication with the drive unit system (100) and configured to control the operation of the drive unit system (100) at least based on sensor data (42) from the at least one sensor device (40a, 40b), wherein the sensor data (42) relates to an angle (φ) of the door (8) in relation to a true horizontal plane of the sectional door operator system (1).

Embodiments of systems and methods for operating a power tailgate system are disclosed. A vehicle includes a rotatable element structured for operable connection with, and disconnection from, a tailgate when the rotatable element resides in a predetermined tailgate removal orientation. A motor is connected with the rotatable element for interdependent movement, and a motor circuit is provided for the motor. During a driving event, the system identifies when no tailgate is connected with the rotatable element. If no tailgate is connected with the rotatable element, the system determines if the rotatable element resides in the predetermined tailgate removal orientation. If the rotatable element resides in the predetermined tailgate removal orientation, the system may check the rotatable element against rotation during the driving event by operating a motor circuit to electrically brake the motor to prevent the rotatable element from rotating out of the predetermined tailgate removal orientation.

Provided is a swing door operator (110) for moving a door leaf (120) between a first position and a second position. The swing door operator (110) is arranged to operate in a powered and a powerless mode and comprises a permanent magnet DC motor (310). The motor (310) is arranged to move the door leaf (120) at least from the second position to the first position in the powered mode. The swing door operator (110) further comprises a mechanical drive unit (320), arranged to move the door leaf from the first position to the second position in the powerless mode. In the powerless mode, at least one resistive device is electrically connected in parallel with the motor (310) and arranged to limit a current generated by the motor (310) in response to the movement of the door leaf (120) from the first position to the second position by means of the mechanical drive unit (320). A method for controlling the swing door operator is also provided.