Abstract:
A device for opening and closing a pivotally mounted door leaf (2) or the like comprises an actuator, which is displaceably and/or rotatingly arranged in a housing (10) and connected to the door leaf and which, during displacement rotation, actuates said door leaf, and a drive motor (27) which is connected to the actuator for providing displacement/rotation thereof.
Abstract:
In an opening-closing mechanism of a door member for shifting the door member from a closed position for closing an opening portion of a base member to an open position and vice versa, the door member includes a pair of arm portions. Each arm portion includes a circular arc shape gear and a rotary gear disposed in a center of the circular arc of the gear. The base member includes a first fixed gear portion with internal teeth engaging the circular arc shape gear portion, and a second fixed gear portion disposed inside the first fixed gear engaging the rotary gear. The arm portion is held to move vertically through engagements between the first fixed gear portion and the circular arc shape gear portion and between the rotary gear and the second fixed gear portion, so that the door member is shifted along a path corresponding to the first fixed gear portion.
Abstract:
A self-locking memory circuit for a tri state data bus having multiple bit lines. The circuit includes a non-inverting buffer chip for connection to each bit line and a resistor having a predetermined electrical resistance connected across the buffer chip. The chip and resistor provide a predetermined impedance to the flow of electrical current in the self-locking circuit. The circuit changes its state when the current of the latest information on a bit line builds or lowers above or below threshold levels of the self-locking circuit.
Abstract:
A passenger van is equipped with a drive mechanism for power operation of a slideable side door. The drive mechanism has a flexible drive member that travels in a closed loop which includes travel through a center track that supports and guides a hinge and roller assembly that is attached to the rear of the side door. The flexible drive member has a cogged portion that is driven by an electric motor to open and close the side door. The remaining portion is uncogged for economy o f manufacture and for releasing the flexible drive member from a clutch of the hinge and roller assembly to open the side door manually very easily. An electromagnetic clutch may also be included to reduce manual operating effort.
Abstract:
A powered sliding device for a sliding door comprises a wire drum rotated by a motor, a wire cable connecting the wire drum and the sliding door, a clutch mechanism provided between the wire drum and the motor. The clutch mechanism has a first coupling state for opening the door, a second coupling state for closing the door, and an uncoupling state. The wire drum has a cylindrical shape having a substantially closed end and an opposite open end, and an inner space formed inside thereof. The clutch mechanism is substantially provided within the inner space. The clutch mechanism is displaced into the first coupling state when the motor rotates in a given direction and displaced into the second coupling state when the motor rotates in a direction opposite to the given direction. The clutch mechanism is returned to the uncoupling state from the first coupling state when the motor is rotated in the opposite direction by a predetermined amount, and is returned to the uncoupling state from the second coupling state when the motor is rotated in the given direction by the predetermined amount.
Abstract:
A window equiped with heat effect automatic opening device is provided. The window comprises a rectangular casing composed of hollow interior frames, an exterior panel and an interior panel secured to the lower portion of the casing and a tempered glass for covering the upper portion slidably secured into the casing between the panel and suspended from a suspension system which includes a heat effect device therein to automatically open the window when the indoor temperature becomes higher than an infusion point, and a lift device disposed between the glass and the interior panel for manually opening or closing the window. The improvement is characterized in that when comes a fire alarm, the heat effect device will break off to set the glass free to open the window.
Abstract:
A rotation deceleration device used for a sanitary cleaning device which includes a toilet seat and a toilet cover and is attached to a toilet bowl, thereby injecting warm water in the toilet bowl. The rotation deceleration device includes a cylinder having a hydraulic chamber filled with a control oil; a rotation shaft inserted through the cylinder; a control wall radially projected from the rotation shaft to divide the hydraulic chamber into at least two sub chambers; a control valve provided between the control wall and an inner surface of the cylinder. The control valve has a closing wall opposed to a side surface of the control wall so as to be attachable thereto and also has an engaging member opposed to the other side of the control wall so as to be engageable therewith in accordance with the rotation of the rotation shaft. The control valve is formed of a material which has a higher coefficient of thermal expansion than that of a material forming the control wall and the cylinder.
Abstract:
A fail safe mechanism for power operated doors comprises an auxiliary power supply, an electric motor, a self operating clutch to connect the motor to the door's normal drive assembly and a relay/timer circuit to energize the motor in the event of a mains failure to enable the motor to drive the door open.
Abstract:
An inertia insensitive disconnectable drive linkage connects a power operator to a swinging door and comprises a door bracket fixed to the door and an arm operator pivoted thereto. A latch positively locks the operator arm to the bracket during normal powered swing of the door. A cam on the door frame releases the latch when the door is swung beyond the door closed position in the opposite direction of opening during emergency operation.