摘要:
A commutator for electrical machines and a method of manufacture of the commutator is disclosed which consists of a lamination assembly held together by a pair of shrink-rings. One of the rings serves to support the commutator on a commutator hub and comprises first and second ring portions having between them a decoupling portion. The first ring portion is in the form of a shrink-ring and holds together the lamination assembly. The second ring portion is secured to the commutator hub. The other shrink-ring also holds together the lamination assembly. In the method of manufacture of the commutator, both the first and second ring portions are simultaneously shrunk on to the lamination assembly and commutator hub respectively.
摘要:
A roller guide for use with sliding elevator doors may include elements for effecting quieter sliding door running by reducing noise associated with the rollers running along the roller guide. The roller guide may by formed by a convex running surface made from a hose-like covering of sheet metal producing a spring effect. The hose-like covering may be dimensioned to utilize the spring effect within an elastic range or limit of the sheet metal, with the optimum spring effect occurring when a radius of the rail running surface is slightly less than a radius of a running surface. An elastic material, to dampen running noise, may be inserted between the hose-like covering and a carrier section. The carrier section may also include spaces for clamping respective ends of the hose-like covering.
摘要:
An elevator shaft door frame has posts of a basic configuration that can be combined with cladding profile members of different shape and size. The posts include a plate-like profile member with two U-shaped corrugations and a plate fastened to the profile member and covering the open rear side of the corrugations. A decorative cladding profile member is fastened to the post and has one U-shaped profile member abutting and fastened to the plate and another U-shaped profile member abutting and fastened to the one U-shaped profile member.
摘要:
Threshold profile member for the guidance of door leaves. The threshold profile member is built in a modular manner and comprised of guide profile members, spacers and separators, with two oppositely directed guide profile members and a spacer together forming a guide groove, with the separators serving for adjustment relative to the door leaf, the latter being provided with slide members and supports, in a recess provided in a building, with the guide profile members, spacers and separators being frictionally interconnected with the door leaf thickness and door gap being adjusted via the use of different separators, with the spacers being arranged only in the region of a screw connection, in order to ensure maintenance of the guide groove width, with the spacers and the separators being horizontally inclinable relative to a door frame side and the separators optionally being comprised of a tough transparent material for the mounting thereunder of lighting and/or information display purposes.
摘要:
An elevator door system includes a motor, a vertical reel, and a door attached at a first end to the vertical reel for winding and unwinding thereupon. A force transmission device interconnects a second end of the door and a compensation device whereby the motor simultaneously drives the vertical reel and the compensation device having a variable diameter. In use, as the door is unwound from the vertical reel, the force transmission device is simultaneously wound upon the compensation device. Hence, not only is a thrust exerted on the door by the vertical reel, but a drag is exerted thereupon by the force transmission device. Furthermore, the compensation device has a variable diameter to compensate for, amongst other things, the changes in the diameter the door wound on the vertical reel. Hence, the tension in the force transmission device and the door can be kept substantially constant during operation.
摘要:
Method and device for stopping of an elevator cage due to a deviation of the elevator position, acceleration, or speed from a travel curve in excess of a certain predetermined safety margin. Travel parameters, computed by the elevator control, may be passed on to a drive control of a cage drive for moving and positioning of the elevator cage, and may also be passed on to a drive control of a reference drive for moving and positioning a trigger part. Accordingly, each of the elevator cage and the trigger part may be driven by individual discrete drivers, but, due to each driver receiving the same travel parameters, the elevator cage and the trigger part move in synchronization. The trigger part may be coupled to the elevator cage to be movable when the elevator cage deviates from the computed travel curve. When the deviation from the travel curve exceeds a predetermined safety margin, the trigger part may actuate a safety switch to stop the cage or reference drivers or to arrest movement of the elevator cage.
摘要:
A door safety circuit for monitoring of story doors in lift installations. The door safety circuit includes a transmitter that produces a non-electrical signal which is guided by a series of conductor portions. The non-electrical signal may be transmitted through a first conductor partial portion to a latching device of a first story door, depending upon the latched state of the first story door, the signal may be either transmitted to a second conductor partial portion, which may be included within the latching device, or no longer transmitted. If the signal is similarly transmitted through a plurality of conductor partial portions and serially connected story door latching devices, the circuit may indicate that each story door is properly latched. The circuit may also include a plurality of sensors coupled to a failure recognition circuit for monitoring each conductor partial portion.
摘要:
An elevator door system includes a motor rotating a vertical reel, and an elevator door. The door can be formed of a plurality of vertically aligned rigid panels or can be a sheet of material which is rigid or reinforced in the vertical direction or can have any other appropriate form making it suitable for being wound upon and unwound from the reel. The door is mounted to a flexible force transmission member provided along an entire width of the door and interconnected to the reel. Accordingly, the forces generated by the motor for opening and closing the door are substantially transmitted through the transmission member rather than being imparted onto the door itself Hence, in use the strain on the door is greatly reduced and therefore the quantity of material used for the door and consequently its cost and mass can be reduced without deteriorating performance.
摘要:
A device moves a door seal for a displaceable door panel of an elevator car in an elevator installation with an elevator shaft having shaft doors. The movable door seal is arranged so that the door panel in a closed state is sealed off. The device includes an entrainer unit connected with the door panel and upon stopping of the elevator car at a floor executes a part movement. The device also includes a coupling mechanism mechanically connecting the entrainer unit with the door seal to bring the door seal out of a sealing position into an open position when the entrainer unit executes the part movement.
摘要:
An elevator installation has a sealing element that is movable by an electromagnetic actuator from a first position to a second position. The sealing element includes a seal carrier that is movably arranged at a door leaf of a door of the elevator installation. An electromagnetic actuator is fastened in the region of the door and upon actuation acts on the seal carrier to move it from the first position to the second position. An electrical circuit triggers the actuation before the door leaf executes an opening movement.