Abstract:
Control systems including control circuitry and optional communications systems for operating a slding power-operated member of an automotive vehicle. A powered sliding door in an automotive vehicle, such as a van, moves along a predetermined path of travel between a closed position and a fully open position relative to the body of the vehicle. Such a sliding door may be provided with one or more electrically-operated actuators for performing functions associated with the door, such as power opening and closing the door, power unlatching the door, power locking and unlocking the door, and power clamping, and unclamping the door in a soft or low-momentum manner. The invention is directed toward improved control systems and circuitry for operating such power-sliding door systems. One such control system employs a wireless communications link between the door and body, which is preferably implemented using radio frequency communication signals containing digitally encoded control signals. Control circuitry is preferably provided in the body and the door of the vehicle for supervising and carrying out the foregoing functions in an orderly manner in response to requests generated locally at the door or remotely by the driver from the console of the vehicle. A second, simpler, control system provides electrically-actuated mechanisms for unlatching the door and operating the door lock without the use of either a wireless communication system or a retractable electrical cable interconnecting the sliding door to the vehicle body.
Abstract:
A drive mechanism for an industrial door. A rotatable drive member is operably connected to the door and rotation of the drive member in one direction through operation of a motor will move the door to the closed position while rotation of the member in the opposite direction will move the door to the open position. A clutch mechanism interconnects the motor and the drive member and is movable between an engaged and disengaged position. The clutch mechanism is biased to the engaged position, and by manually pivoting an actuating member that is connected to the clutch mechanism, the clutch mechanism can be moved to the disengaged position, and is retained in the disengaged position until manually released. A switch is operably connected to the motor, and when the actuating member is pivoted to a position to disengage the clutch, the switch will be actuated to shut off power to the motor.
Abstract:
A motorized window operator for opening and closing a window having a mechanical drive system including a rotatable drive axle. A housing contains a motor which is in operative engagement with a gear train having an output gear. The output gear is engageable with an engagement means mounted upon the drive axle of the window. For engaging the output gear train with the engagement means, operation of the motor will rotate the drive axle to either open or close the window according to desire. The gear train is dissengageable from the engagement means which at the same time dissengages power to the motor. The drive axle can then be manually operated.
Abstract:
A power door operator for transit vehicles utilizing a rodless pneumatic cylinder as a prime mover in opening and closing doors in the sidewall of a transit vehicles. Door movement having a controlled, predetermined door edge force is achieved through mechanical coupling an external piston of the rodless cylinder and vehicle doors through an endless toothed belt. Magnetic coupling between internal and external pistons of the cylinder provide controlled force having a maximum or breakaway value applied to the operated door. A novel reaction lock operated by admission of pressurized air to the cylinder latches or unlatches the operated door in its closed position subsequent or prior to door closing or opening. Control of door motion at the ends of its travel is achieved through the use of a novel differential area internal piston in the pneumatic cylinder. Available internal piston force is modified for predetermined piston positions on approaching either end of the cylinder through the use of a sliding rod contained by the pressure sensitive internal position. Movement of the sliding rod adjust the effective piston area so as to modify available force to controlling door motion.
Abstract:
A door operator for a slide door that is slidingly supported relative to a door opening in a side panel of a vehicle body is disclosed. The door is supported adjacent its forward end on at least one forward guide member and is supported adjacent its rear end on a rear guide member. The guide members guide the door through (i) an initial closing movement generally parallel to the side panel, (ii) a final closing movement generally parallel to the side panel, (iii) at least a portion of its final closing movement generally toward the plane of the door opening, and (iv) at least a portion of its initial opening movement generally away from the plane of the door opening. The door operator comprises means including a cable member coupled to the rear end of the door for driving the door along the guide members to thereby move the door through its initial and final opening and closing movements. When used as part of a system, the powered sliding door operating system also includes a clamping means including a rotatable striker plate mounted on the vehicle body and having an eccentrically mounted striker pin thereon engagable by a latch bolt member on the door for clamping the door to the vehicle body with the door in a finally closed position in the door opening.
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:
An automatic sliding door system for vehicles to operate opening and closing movements of a sliding door of a vehicle automatically and safely from a driver's seat as well as outside of the vehicle, comprises a guide rail affixed to the body so that the sliding door can be guided along the rail by sending wires firmly connected to the door by an electric motor, an operating device consisting of two parts, one being mounted near the driver's seat and another being mounted inside the body adjacent to the sliding door, a door lock releasing device mechanically or electrically connecting a door lock of the sliding door at one end and the operating device at another end through a coupling which is joint when the door is closed but separated when the door is opened, and a control device connected to the operating device to control movements of the sliding door in accordance with operation of the operating device.
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:
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 sliding door of the type employed in public transport vehicles and driven by an electric motor comprises at least one door-leaf coupled with a nut mounted on an endless screw which is driven in rotation in order to open and/or close the door. The nut is displaced in translational motion within a guide which prevents rotational motion. The locking device comprises means for interrupting the translational displacement of the guided nut at the end of travel and for permitting angular rotation of the nut with the endless screw, means for limiting the angular displacement of the nut and finally means for limiting the translational motion of the nut if it is displaced along the endless screw and no longer engaged in the guide.