Abstract:
A opening and closing device 10 for sunroofs of an automobile, which has a pair of rails 17a and 17b, a lid 13 for opening and closing an opening 12, right and left cables 26 engaged to a lid 14 and arranged along the rails 17a and 17b, and a drive mechanism 36 for driving the cables in a reciprocating manner. The cables 26 construct a closed loop arrangement with bypassing the opening 12 of the loof of the automobile. One of the cable 26 coming out of the drive mechanism 36 is arranged to the right-side rails 17b, bridged to the left side lail 17b, reversed at the base end of the left side lail 17a and returned along the same route to the drive mechanism 36.
Abstract:
A window lifter comprises a cable, a window linkage driven by the cable, a fixed device and a cable redirecting device. The cable redirecting device is rotatably mounted on the fixed device and adapted to automatically lock onto the fixed device upon reaching a predetermined angular position. In addition, the cable redirecting device has a cable guiding portion which is not a figure of revolution about the axis of rotation relative to the fixed device. This window lifting mechanism provides a simple structure with few elements. Its assembly is also simple: the cable-redirecting device is rotatably mounted on the fixed device; it is thereafter rotated for tensioning the cable and then locked in a position where the cable is tensioned.
Abstract:
An automatic door operator for swing doors which uses a worm gear transmission to connect the motor to a belt and pulley which in turn is connected to a spur gear and drive gear. The door arm of the swing door is connected to a double-ended shaft which is part of the drive gear. A rack and pinion gear and spring are used to provide the closing force to the door arm. The motor is mounted over the spring and the belt and pulleys are located alongside the motor which results in a compact non-handed design.
Abstract:
A brake mechanism for slowing elevator car doors in an elevator system during an emergency power outage or electrical control malfunction includes a brake shoe activated by a solenoid. During normal operation of the elevator car doors, the solenoid is in activated mode and maintains the brake shoe spaced away from the door pulley. During a power outage or electrical controls malfunction, the solenoid is deactivated and, in cooperation with a compression spring, forces the shoe brake to engage the door pulley to slow down the movement of elevator car doors.
Abstract:
A window regulator apparatus includes a guide rail fixed within a vehicle door, a bracket including a window mounted on the guide rail, a driving mechanism fixed within the door for moving the window up and down the guide rail, and a resilient member mounted on the guide rail for preventing the guide rail and window glass from contacting and thereby preventing the window glass from being damaged.
Abstract:
A driver unit for use in a window regulator for raising and lowering a panel of window glass has a drum case to be mounted on a fixed member such as a door panel, a drum rotatably supported in the drum case for winding a wire thereon and feeding the wire therefrom upon rotation thereof, the drum having an axial shank, a spiral spring having one end engaging the shank, and a spring cover supported on the drum case and accommodating the spiral spring therein, the other end of the spiral spring being fixed to the spring cover, the shank of the drum being rotatably supported on the spring cover. The spring cover is securely locked on the drum case by a reliable locking arrangement which can easily be assembled.
Abstract:
As a driving power source for an automatic door, a brushless D.C. motor is employed, and the position and the speed of a door member are determined by making use of detection pulses issued from magnetic pole position detectors which are associated with the brushless D.C. motor without providing any additional detector means separately. On the basis of the current position and the current speed of the door as determined from the detection pulses and of a programmed sequence of opening and closing operations for the door as stored in a control system, the opening and closing movements of the door member are controlled.
Abstract:
A control apparatus and method are disclosed for controlling the output torque of a multiple phase stepper motor, by turning OFF the normally excited phases for predetermined periods.