Abstract:
This invention concerns about an electric device for opening or shutting automotive doors, which comprises a transmitting device controlling opening or shutting the door and an electromagnetic coil controlling the door lock. The transmitting device uses a motor and an electromagnetic clutch which are able to operate to open or close the door by pushing of a rack and attain the aim of automatically controlling the opening or closing of the door.
Abstract:
A device for securing the locked position of a motor-vehicle door activated by a rotating post and that is locked or unlocked by raising and lowering the post has a disk attached to the post and a rotating support in the form of a double-armed lever mounted below the disk on a stationary section of the frame so that the support can be displaced into a position in which the disk rests on the top of one of the lever arms. The axis of rotation of the support is positioned on the frame section and lies in a plane that is perpendicular to the direction in which the rotating post is raised and lowered. The bottom of the second lever arm of the support rests on and is forced by a compression spring against a stop on the frame section and the bottom of the first arm of the support has a recess. A rotating locking element, which is also a double-armed lever with two support surfaces on one arm, engages the recess. The axis of rotation of the support, which is positioned on the frame section, parallels the axis of rotation of the support and the support surfaces are adjacent and essentially perpendicular to each other, with one extending essentially radially to the axis of rotation of the locking element and the other essentially tangential to the direction in which the locking element rotates. The recess in the support has two adjacent and perpendicular contact surfaces against which the support surfaces of the locking element rest in the locking state, and the second lever arm of the locking element is connected to at least one activating mechanism.
Abstract:
What is disclosed is a new and novel fume hood sash operator system and a fume hood containing such a system. The sash operator is constructed to operate with a belt drive and a clutch mechanism so that the sash member can be stopped, started, moved up or down to accommodate changes in the flow or air moving through the hood structure and to provide a safe, durable, energy-saving sash operating system.
Abstract:
A door is provided having an automatic opening means for the door and a key locking facility for mechanically locking the door in a door closed position and electric circuit means connected with the motor means to sense a change in the electrical operating conditions of the motor above that which is normal for operation of the motor and to remove the above normal power thereby supplied to the motor in such circumstances.The sensing means preferably comprises a means which switches off the power once the electrical operating conditions are sensed above that which is normal and whereby it returns the power some time later and should the motor then reexperience electrical operating conditions above that which is normal the sensing means will again switch off the power to the motor.The sensing means desirably comprise a bimetallic cut out switch means.
Abstract:
A roller shutter or door drum driving mechanism of the kind comprising a pivotally mounted electric motor, a gear train fixedly associated with said motor terminating in a pinion, a ring gear on the drum and manually operable, is furnished with releasable latch means which secure said motor and train in an operative position wherein the pinion meshes with the ring gear but, when released, permit the motor to move to an in-operative position wherein the pinion is clear of the ring gear.
Abstract:
A lock and safety release for power operated doors of the type in which the door is normally connected to a door operator for movement thereby, and in which the connection of the door to the door operator can be released to enable manual movement of the door. The lock and safety release includes inner and outer emergency release handles at opposite sides of the door which are selectively operable to disconnect the door from the door operator, and a lock mechanism for locking the outer emergency handle to prevent its operation to disconnect the door from the door operator and to also disable the door operator to prevent powered movement of the door by the door operator. The inner release handle remains operative to disconnect the door from the door operator to enable manual operation of the door when the outer handle is locked and the power operator is disabled.
Abstract:
A sliding automobile door is actuated by a rack and pinion driven by an electric motor through a worm and worm wheel. In the event of failure of the motor the worm and worm wheel can be disengaged by a control slide accessible both from the interior of the vehicle and from beneath the bonnet, hood or other cover of another compartment of the vehicle.
Abstract:
A traveler for an overhead garage door operator with a linear power shuttle, a guide track and an actuator arm for raising and lowering a door. The traveler is connected to the actuator arm and carried by the track for reciprocating movement thereon. A biased latch connects the traveler to the power shuttle to open and close the door in normal operation, releases the traveler from the shuttle to facilitate manual opening and closing of the door, and automatically re-connects the traveler with the shuttle.
Abstract:
A closure operator particularly adapted for use with a station wagon tailgate type closure and adapted to permit randomly interchangeable operation of the tailgate in either one of a power mode and a manual mode, the closure operator including a driving member movable from a center position in opening and closing directions corresponding to movement of the closure toward an open position and a closed position, means defining a slot in the driving member, a driven member connected to the closure for moving the latter in the power mode and having a pin thereon engageable on the driving member in the slot, a reversible electric motor for moving the driving member in either one of the opening and closing directions, and a control circuit having a first manually actuable switch for energizing the motor to move the driving member away from the center position in either the opening or closing directions and a second switch responsive to the position of the driving member for reversing the motor to bring the driving member back to the center position and sequencing means for preventing reversing of the motor through the second switch until the first switch is deactuated. In the center position of the driving member the pin is located adjacent one or the other of the ends of the slot when the closure is in the open and closed positions so that movement of the closure in the manual mode effects lost motion between the driving and driven members as the pin traverses the length of the slot while movement of the driving member effects engagement between an end of the slot and the pin to effect movement of the driven member and the closure in the power mode.
Abstract:
A station wagon tailgate type vehicle closure system operable in a randomly interchangeable manner in either one of a power mode and a manual mode, the system including a closure, an operator movable from a center position in opening and closing directions, a pin and slot connection between the closure and the operator effecting movement of the closure in the power mode during movement of the operator in either direction away from the center position while permitting lost motion between the closure and the operator during movement of the operator back to the center position, the lost motion also permitting movement of the closure in the manual mode when the operator is in the center position, a manual switch for energizing a motor adapted to drive the operator in either direction away from the center position, a reversing and stopping circuit responsive to deactuation of the manual switch for temporarily energizing the motor to return the operator to the center position, a striker mounted on the vehicle and movable between a center position and an extended position synchronously with movement of the operator, and a latch assembly on the closure engageable on the striker. When the operator is in the center position the striker is in its center position and the closure is movable in the normal manual mode. When the operator is actuated to move the closure toward a closed position the striker moves to the extended position for engagement with the latch assembly whereafter the striker during movement back to the center position pulls the closure to a fully closed position synchronously with movement of the operator back to its center position.