Abstract:
A system for raising and lowering a sectional overhead door between an open position and a closed position including, a counterbalance system adapted to be connected to the door, an operator motor assembly mounted proximate to the sectional overhead door in the closed position of the sectional overhead door, at least a portion of the operator motor assembly movable between a door operating position and a door locking position, and a locking assembly (370) having an engaged position to hold the motor assembly in the operating position and a disengaged position to release the motor assembly allowing it to move to the door locking position. The system may be provided with a remote light assembly having a switchable light source in sensing communication with the operator motor such that operation of the motor activates the light source. The system is further provided with a handle assembly (515) operatively engaging the motor assembly (40) and counterbalance system (30) to selectively disconnect the motor assembly (40) from the counterbalance system (30), whereby urging of a rotatable handle (516) to a disconnect position (516′) allows the door (D) to be manually freely moveable with the aid of the counterbalance system (30).
Abstract:
A universal power operator for shifting a movable barrier, such as a gate, and a circuit control system for operation thereof, is shown that allows the operator to be assembled for both a left-hinged or right-hinged movable barrier. The universal power operator includes generally an actuator arm, a housing assembly, a gear assembly, and a modular drive motor. The housing assembly contains generally symmetrical portions allowing the user to interchangeably assemble the motor in one of two positions for use with a left-hinged or right-hinged movable barrier.
Abstract:
A door operator and related method of setting custom limits on movable barrier travel, includes a motor for moving the movable barrier between two travel limit positions, an operator for controlling operation of the motor, and a disconnect system coupled between the motor and the operator. The disconnect system is switchable between a connected position and a disconnected position, wherein the motor can engage the operator only when the disconnect system is in the connected position. The operator is connected to a potentiometer for ascertaining movable barrier position, regardless of the position of the disconnect system, and provides position information to the operator. A travel limit is set by placing the disconnect system in the disconnected position and manually moving the door to a desired position whereupon the disconnect system is moved to the connected position so that the operator can detect a positional location to be designated as one of the travel limits. An installation switch may be connected to the operator, wherein the operator determines a custom lower limit or a custom upper limit from the desired position as detected by the potentiometer, wherein actuation of the installation switch establishes the custom limit. An up/down switch may also be connected to the operator. Actuation of the up/down switch during setting of the operational profile and after setting of the custom lower limit sets a custom upper limit.
Abstract:
A manual release mechanism of a power actuated sliding door used typically for van applications, includes a bullet assembly interconnected between the ends of a pull member, or cable, of a powered pulley system. The bullet assembly engages and disengages within a passage of a hinge roller assembly which rides within a track of the vehicle. When disengaged, the door is free to slide without causing movement of the bullet assembly or powered pulley system. When engaged, the hinge roller assembly supports a pin which projects into the passage when in a rest position. If the bullet assembly is in the passage, the pin also projects into a groove of the bullet assembly, thereby, locking the bullet assembly within the passage and causing the hinge rolling assembly, which is pivotally connected to the door to move via operation of the powered pulley system. Disengagement of the pin or retraction of the passage way via a manual release handle causes the hinge roller assembly to disengage from the bullet assembly and therefore from the powered pulley system allowing for manual operation of the door independent of the pulley system.
Abstract:
An electric door operator for controlling the opening and closing of a door pivotally mounted to a door frame of a multi-passenger mass transit vehicle is provided. The electric door operator comprises a gear sector having an aperture extending through a center portion thereof. The gear sector is mounted for rotation in opposite directions through opening and closing cycles of the door. A first supporting ring having a aperture extending through a center portion thereof is positioned adjacent to the gear sector such that the aperture of the first supporting ring is in alignment with the aperture of the gear sector to form an actuating assembly. A shaft member extends through the apertures of the gear sector and the first supporting ring. A push bar is suspended from the first supporting ring and is pivotally secured to a door lever. A driving means is provided for driving the actuating assembly such that the actuating assembly rotates about the shaft member and applies a force to the push bar for one of opening and closing the door. The operator is also designed such that it is capable of sequentially releasing a latching mechanism and then opens the door through the use of a single gear motor.
Abstract:
This sliding sash drive assembly includes a rack gear for the sash and a drive unit adapted to be mounted on the window frame and having a driven spur gear. An L-shaped engagement lever is mounted at its vertex on the housing and carries on its short leg a rack guide adapted to embrace the rack gear so that, as the long leg of the lever is moved, the guide moves the rack to a position at which the rack meshes with the spur.
Abstract:
A powered window regulator for use with a horizontally sliding window assembly may be disconnected from a sliding pane to permit manual operation of the window. The regulator has a tubular guide rail mounted adjacent and parallel to the lower edge of the window assembly by pivot brackets which engage the respective ends of the guide rail such that the guide rail is rotatable about the pivot brackets. A carrier block slides within the guide rail, and a portion of the block extends out through a longitudinal slot extending along the length of the guide rail to engage a pane attachment affixed to the sliding pane. The carrier block is moved reciprocally along the guide rail by a motor-driven cable to slide the sliding pane between open and closed positions. Rotation of the guide rail about the pivot brackets through approximately ninety degrees moves the carrier block between an upright position wherein it engages the pane attachment and a depressed position wherein it is disengaged from the pane attachment. Each pivot bracket comprises a bearing pin which fits into the end of the tubular guide rail and a conduit end fitting for receiving the end of a protective conduit which surrounds the drive cable.
Abstract:
A power door for a transit vehicle includes a door panel, a base and hanger unit, a door support, a drive member and a motor. The door support is attached to the door panel and includes at least one roller which engages a hanger portion of the base and hanger unit for motion along the base and hanger unit. The hanger portion includes a longitudinal cavity and a slot communicating with the cavity. The drive member is disposed within the cavity and a drive member connector passes through the slot to connect the drive member to the door support.
Abstract:
A mechanism for the powered opening and closing of household panels such as windows and doors comprises a worm drive screw, small enough to be mounted within and along the upper track of a sliding panel. A nut threaded on the drive screw moves axially along the screw when the screw is rotated. Motion of the nut is transmitted to the panel by means of a coupling bolt, slidingly mounted within a cavity in the top of the panel. The bolt slides up to engage the nut for powered operation, and slides down to disengage from the nut during manual operation. The position of the bolt can be secured through locking means. A resilient, dielectric transmission accouplement between the drive screw and the motor provides electrical and vibrational isolation, and scalability. A second extendible bolt mounted on an opposite end of the frame hinders pitch deflection of the panel during powered operation. Worm gearing and a solenoid based brake locks the motor and the position of the nut when no power is applied.
Abstract:
An assembly for opening and closing a window sash from and against a window frame including a motor mounted to a window sash and having an output drive shaft, an operator arm having one portion pivotally connected to the sash and a second portion operably connected to the frame, and a drive train operably connecting the motor drive shaft to the output arm for controlling pivotal movement thereof in relation to the sash. A clutch mechanism permits the operator arm to be selectively disconnected from the drive train to allow the sash to be manually opened. A housing, disposable in a cavity defined in a generally rectangular box shape on a sash side, encloses the motor, drive train, and clutch mechanism. The housing has finger-jointed ends which are adhesively bonded to matching finger-joints formed on opposite sides of the sash cavity.