Online Extras
Online Extras for January 2012
Bonus photos from “Peelle Hosts Consultants for Elevator-Door Modernization Seminar”
Steve Romnes of Vertitron Midwest, Inc. (black shorts) in the 2011 Ringside Championships Masters: part 1; part 2; part 3
The best Interlift 2011 photos we couldn’t fit into the magazine
Patents
ELEVATOR AND TRACTION SHEAVE OF AN ELEVATOR
Esko Aulanko of Kerava, Simo Makimattila of Espoo, and Jorma Mustalahti and Pekka Rantanen of Hyvinkää, all of Finland, have assigned KONE Corp. of Helsinki, Finland, U.S. Patent No. 8,069,955 dated December 6, 2011.
An elevator may include an elevator car, a counterweight, a set of hoisting ropes, and one or more rope pulleys. The car and counterweight may be suspended on the hoisting ropes. At least one rope pulley may include a solid surface including a plurality of rope grooves configured to receive at least one hoisting rope. Each rope groove may generally conform to a semi-circular shape and may include a groove bottom and sides. The at least one rope pulley may include a coating adhesively bonded to it. The coating may directly contact the at least one hoisting rope. A coating thickness may be less than or equal to about 3 mm. At the groove bottom of each rope groove, the coating thickness may be substantially less than half a thickness of the at least one hoisting rope. The coating may cover the groove bottom and sides of each rope groove.
ELEVATOR SPEED GOVERNOR AND DEVICE
Mineo Okada of Tokyo, Japan, has assigned Mitsubishi Electric Corp. of Tokyo, Japan, U.S. Patent No. 8,069,956 dated December 6, 2011.
An elevator governor capable of setting first overspeeds different between a rising time and a descending time by a simple configuration and at a low cost without the need for electric power supply from the outside. For this purpose, a weight that is moved in a predetermined direction by receiving a centrifugal force according to a travel speed at the rising time and the descending time of a car, an elastic body urged by movement of the weight having received the centrifugal force, and an actuating device actuates a stop switch when the weight having received the centrifugal force moves to a predetermined position against an urging force of the elastic body are provided, and also a switching device driven by the rising/descending operation of the car is provided. By the switching device, the length of the elastic body at the time when the actuating devices actuates the stop switch is switched to a length different according to the rising/descending direction of the car.
BELT DEVICE FOR DRIVING ELEVATOR
Kazayuki Yuasa, Yasunori Ishikiriyama and Atsuhito Wake, all of Yamatokohriyama, Japan, have assigned Nitta Corp. of Osaka, Japan, U.S. Patent No. 8,066,101 dated November 29, 2011.
A belt device for driving an elevator is provided, the rest retaining capability of which is improved in order to retain the stopped state of an elevator cage if oil or water adheres to between a belt and a pulley. In the belt device for driving an elevator in which a belt 4 is stretched over a plurality of pulleys 1, 2, and 3, and the belt 4 is rotated by the rotations of the pulleys 1, 2, and 3, wherein the coefficient of friction of a contact surface with at least a driving pulley in the belt 4 is set to 0.6 to 3.0, and the contact surface is constructed of a rubber having a hardness (IRHD) of 65 to 95, and a wear resistance of 5 to 300 mm3 in Taber wear (ISO 547-1-1999, under conditions: a wear ring of H18; a load of 1 kg; and 1,000 rpm).
