Abstract:
A motorized door opener for a vehicle (such as a military or security vehicle), featuring a sensor system that determines door position to prevent door damage while the opener is in operation. The opener features an offset gear system that effectively changes the door's rotation point. Mechanical advantage is gained by using a lengthened lever arm with the gear system, providing increased leverage and allowing the motor to provide enough force to open and close a heavily armored door. The opener can use existing door hinges, and can be provided so as not to protrude into the door space, in order to facilitate passenger and equipment entry/exit through the doors. A safety release mechanism is included in some embodiments, allowing the door to be manually opened or closed.
Abstract:
A safety release mechanism for use with a ball screw type linear motor, featuring a lock lever that can be manually engaged or disengaged. Engaging the lock lever rigidly fixes a telescoping arm, allowing the motor to retract or extend the arm into a cover tube. Disengaging the lock lever allows the telescoping arm to rotate freely in the cover tube. One embodiment of the safety release mechanism is used with a motorized door assist mechanism, however, the release mechanism has many applications beyond a door opener, and can be used in any application requiring a linear motor with a telescoping arm, where in order for the motor to extend or retract the arm, one end of the arm must be fixedly held in place.
Abstract:
A barrier operating system having a diagnostic performance feature includes a motorized barrier movable between limit positions and a counterbalance system coupled to the barrier. A disconnect mechanism may be interposed between the motor and the counterbalance system so that the barrier can be moved manually without assistance from the motor. A position detection device is coupled to either the barrier or the counterbalance system and generates a barrier position signal. One of the motor and the position detection device generates operational parameter values for the barrier moving in either direction. A controller receives the operational parameter values and the barrier position signal, and as the barrier is manually moved, the controller compares operational parameter values for each direction of movement at a given position and generates a diagnostic signal based upon the comparison.
Abstract:
A system for re-synchronizing an access barrier with a barrier operator comprises an access barrier, and a barrier operator to profile and monitor the manual and automatic movements of the access barrier. The barrier operator comprises a controller, a memory, a motor pivot encoder, and a counting encoder. The memory contains a primary counter to store the distance measured by the counting encoder, while a secondary counter maintains a value equal to the travel of the access barrier as determined by a profiling operation initiated prior to operating the barrier operator. The controller takes into account the counts of the primary and secondary counters, along with the stored profile information, allows the re-synchronization system to determine the proper amount of movement to be applied to open or close the access barrier, in the event the access barrier has been manually moved.
Abstract:
A door, especially a sectional door, is operated with the use of a drive unit with a drive gear, a clutch, and a position-detecting unit. The position-detecting unit detects the direction of rotation of the drive gear, detects the number of revolutions of the drive gear by pulses, and stores the pulses, taking the direction of rotation into consideration, in a nonvolatile memory. A data-processing unit is present in which different variable sequence programs are stored, which include not only safety-relevant programs but also a learning program. Reference values are determined by the position-detecting unit for a variable open position of the door, which position can be set as desired, and for a completely open position, which is limited by a stop, as well as for a closed position of the door are stored in a nonvolatile memory and are processed during automatic travel of the door. A door drive consists essentially of a drive unit with a drive gear and a running rail, wherein the drive unit can be moved along the running rail by a motor. The position of the drive unit is detected by a position-detecting unit and stored in a nonvolatile memory, and the drive unit and the drive gear are equipped with a clutch with a status monitor.
Abstract:
The present invention relates to a door drive for garage, garden, hall or factory doors, comprising a motor unit which comprises a drive motor and a motor output shaft, an output transmission, which on the input end can be connected with the motor output shaft and on the output end includes a transmission output shaft for driving a door moving element, in particular a door shaft, a release clutch for releasing the motor output shaft with respect to the door moving element as well as at least one damping element for damping drive shocks. In accordance with the invention, the door drive is characterized in that the output transmission includes a transmission housing formed separate from the motor unit and together with the release clutch and the damping element forms a separate, modular drive attachment, which can be connected on the one hand to the motor unit and on the other hand to the door moving element.
Abstract:
An unlock mechanism for a rotary door operator of a transit vehicle includes a pivotally disposed unlock member adapted for rotating a lock member into an unlock position and activating a valve for discharging the fluid pressure from the drive cylinder to enable manual opening of the door. A spring is provided for biasing the unlock member to a non-activated position. The unlock member may be activated either with a cable or a lever handle. A lock sensing switch provides a feedback on the lock condition to the transit vehicle control system. Additionally, a guiding bracket is provided for securing the cable in proximity of the unlock member.
Abstract:
The invention relates to an emergency release device for a building closure operator for decoupling a motorized building closure from a motor operator assembly under emergency conditions. To diminish the risk of injury by free-fall of a decoupled building closure wing by a simple and cost-effective design the invention proposes providing a safety or securing unit which safeguards or secures the emergency release device against unintentional or unauthorized actuation.
Abstract:
In an electric motorized hinge apparatus, a biasing means maintains a concavo-convex engagement state between a third rotating member and a second engagement portion in a second rotating member, and thus the second rotating member rotates to follow the third rotating member. Furthermore, the biasing means maintains a concavo-convex holding state between a first engagement portion in the second rotating member and a first rotating member, and thus the first rotating member rotates to follow the second rotating member. Furthermore, as the first rotating member rotates, a lid portion rotates to follow it. During manual rotation of the lid portion, a motor is maintained in an off state and the second rotating member is kept at a stop by a lock means. Therefore, the engagement state at the first concavo-convex engagement part is released by the manual rotation of the lid portion, so that the lid portion can be freely rotated by hand.
Abstract:
An emergency unlocking device for locking and unlocking systems for swinging sliding doors, in particular of rail vehicles. The emergency unlocking device has a traction device that engages on a first spring-loaded pivoted lever that is connected via a second lever to a third lever. The third lever is attached to the axial shaft of a spring-loaded rotary magnet and has elongate holes in which a bolt is displaceably mounted. When the traction device is subjected to tensile stress, the bolt engages with a fourth lever that is pivotably mounted on a shaft, and moves the fourth lever. The fourth lever is operatively connected via a coupling rod and deflection unit to a locking rod that moves the vertical direction. A rod, via which a force component that brings about the locking and unlocking of the door leaves can be applied, engages on the fourth lever.