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1115results about "Door arrangement" patented technology

Device for connecting a displaceable element to a guide device

PCT No. PCT/CH98/00274 Sec. 371 Date Feb. 23, 1999 Sec. 102(e) Date Feb. 23, 1999 PCT Filed Jun. 23, 1998 PCT Pub. No. WO98/59140 PCT Pub. Date Dec. 30, 1998Device for connecting a displaceable element, especially a glass, metal or wooden panel to a guiding device that is guided in a rail. The device includes first and second fixing members which each contain outer panels and fitting, elements which can be interconnected by an axle. The fitting elements are inserted into a cutout section on the edge of the displaceable element and interconnected. The fitting elements encompass a connection screw which can be connected to the guide device, the connection screw having a screw shaft with a screw head, a locking element and a thread. The fitting element of the first fixing member has a channel for receiving the screw shaft, the channel having channel walls, a trough for receiving the screw head and a cavity for receiving the securing element. The locking element can be stopped by a stop screw. The fitting element of the second fixing member has a recess for receiving the channel walls and an opening through which the screw head can be accessed. The assembled device can be adjusted by loosening the stop screws by a few turns and turning the connection screw until the displaceable element is set at the desired height. The stop screws are then re-tightened. The locking element is part of the connection screw and is encompassed in the device so that the top edge of the displaceable element can be drawn practically up to the rail.
Owner:HAWA AG

System for detection of obstructions in a motorized door system

Method of detecting obstructions encountered by a motorized door. The method includes providing a signal processor with one or more signals indicative of a predetermined door trajectory profile for at least a segment of a stroke of the door, the door trajectory profile providing an ideal speed and / or position versus an elapsed time since a beginning of the segment of the stroke. A door position signal from a position encoder for the door is received into the signal processor. The method includes generating one or more signals indicative of the velocity and / or position of the door from the door position signal and generating a trajectory discrepancy signal based on the velocity and / or position in relation to the ideal speed and / or position. A motor control signal is generated based on the trajectory discrepancy signal and the motor control signal is connected to motor control circuits connected to drive the motor for the door. The method further includes performing one or more tests on either the trajectory discrepancy, the velocity of the door or the position of the door to determine whether the door has encountered an obstruction, in which case an obstruction detection signal is generated. The obstruction detection signal is for stopping the door.
Owner:WESTINGHOUSE AIR BRAKE CO

Cross slider type sliding plug door mechanism

The invention discloses a cross slider type sliding plug door mechanism, relates to an opening / closing and sealing mechanism of a sliding plug door for a high-speed train, and is particularly applied to opening / closing and sealing the door of a subway or the high-speed train. The cross slider type sliding plug door mechanism consists of a stepping motor, a screw rod, a screw rod nut, a support, a main shaft, a cross slider, a guide rod, a sliding plug door body, a guide wheel and a guide slot. The main shaft is fixed on the support. One hole in the cross slider matches the main shaft and can slide along the main shaft, and another hole of the cross slider perpendicular to the hole is matched with the guide rod. The sliding plug door body is fixedly coupled to the guide rod through a bolt. The guide wheel is arranged on the guide rod, and is limited in the guide slot to move. The guide slot is made into a shape of a line and a circular arc. When the guide wheel is driven by the cross slider to move along the guide slot, the guide wheel drives the sliding plug door to open and close and the sliding plug movement is realized. The movement of the cross slider is realized by driving the screw rod to rotate through the stepping motor, so the screw rod nut moves linearly, and the screw rod nut is fixedly coupled to the cross slider.
Owner:NANJING KANGNI MECHANICAL & ELECTRICAL +1

Hidden sealed door for railway vehicle

The invention discloses a hidden sealed door for a railway vehicle. The hidden sealed door comprises a driving mechanism, a bearing mechanism, door leaves, a sealing frame and a doorsill, wherein the driving mechanism comprises a lead screw nut mechanism; the bearing mechanism comprises bearing trolleys, and two upper guide rails and two lower guide wheels which are used for performing guidance for the translation, sliding and plugging movement of the door leaves; nuts of the lead screw nut mechanism are connected with each bearing trolley through a hinge mechanism; and when opened, the doorsill is located within the wall body of the railway vehicle. According to the hidden sealing door for the railway vehicle, provided by the invention, jiggle sliding and plugging movement is additionally arranged based on the original hidden translation door; adhesive tape sealing is adopted to replace the brush sealing structure, so that the sealing effect of the railway vehicle door system is improved; meanwhile, electrically controlled door is used, and the acoustic and thermal insulation property is good, so that the comfort requirement of a passenger can be satisfied; and the structure is simple, the sliding and plugging movement can be achieved without an air supply, and the time required for shutting the door is short.
Owner:NANJING KANGNI MECHANICAL & ELECTRICAL

Control unit for controlling a synchronous motor

A control unit is provided that controls a motor that opens and closes a door of an electric train such that, if an abnormality is detected by a position sensor, continuation of its open/closing operation can be maintained. The control unit includes an arrangement for computing the actual rotation speed and the magnetic polar position of the motor; a position sensor abnormality-detecting identifier unit for detecting abnormalities in the output of the position sensor; and a first controlling arrangement that generates voltage-instructing values by applying the magnetic polar position so as to cause a speed detection value to correspond to the speed instruction value. The control unit further includes a second controlling arrangement, which in turn includes an F/V arithmetic unit 24 and integrator 25; and a switcher unit 27. The F/V arithmetic unit 24 generates a voltage instruction value having a specific magnitude and phase corresponding to the speed instruction value by utilization of magnetic polar position data that is obtained via integration of a frequency corresponding to the speed instruction value. The switcher unit 27 selects either of the first and second controlling arrangements so as to generate voltage-instructing values for a power converter 3. When the output of the position sensor is normal, the switcher unit 27 selects a specific voltage-instructing value delivered from the first controlling arrangement, whereas if the position of the sensor 5 is abnormal, the switcher unit 27 selects a specific voltage-instructing value delivered from the second controlling arrangement.
Owner:FUJI ELECTRIC CO LTD
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