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US 2002/0000347 A1Published application
Tension member for an elevator
AssigneeOtis Elevator Company
InventorsPedro S. Baranda, Ary O. Mello, Hugh J. O'Donnell, Karl M. Prewo
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AssigneeOtis Elevator Company
InventorsPedro S. Baranda, Ary O. Mello, Hugh J. O'Donnell, Karl M. Prewo
Estimating the term…
A tension member for an elevator system has an aspect ratio of greater than one, where aspect ratio is defined as the ratio of tension member width w to thickness t (w/t). The increase in aspect ratio results in a reduction in the maximum rope pressure and an increased flexibility as compared to conventional elevator ropes. As a result, smaller sheaves may be used with this type of tension member. In a particular embodiment, the tension member includes a plurality of individual load carrying ropes encased within a common layer of coating. The coating layer separates the individual ropes and defines an engagement surface for engaging a traction sheave.
A tension member for providing lifting force to an car of an elevator system, the tension member being engageable with a rotatable sheave of the elevator system, the tension member having a width w, a thickness t measured in the bending direction, and an engagement surface defined by the width dimension of the tension member, wherein the tension member has an aspect ratio, defined as the ratio of width w relative to thickness t, greater than one.
A traction drive for an elevator system, the elevator system including a car and a counterweight, the traction drive including a traction sheave driven by a machine and a tension member interconnecting the car and counterweight, the tension member having a width w, a thickness t measured in the bending direction, and an engagement surface defined by the width dimension of the tension member, wherein the tension member has an aspect ratio, defined as the ratio of width w relative to thickness t, of greater than one, the traction sheave including a traction surface configured to receive the engagement surface of the tension member such that the traction between the sheave and tension member moves the car and counterweight.
A sheave for an elevator system, the elevator system including one or more tension members, each tension member having a width w, a thickness t measured in the bending direction, and an engagement surface defined by the width dimension of the tension member, wherein the tension member has an aspect ratio, defined as the ratio of width w relative to thickness t, of greater than one the traction sheave including a surface configured to receive the engagement surface of the tension member.
A liner for a sheave of an elevator system, the elevator system including one or more tension members, each tension member having a width w, a thickness t measured in the bending direction, and an engagement surface defined by the width dimension of the tension member, wherein the tension member has an aspect ratio, defined as the ratio of width w relative to thickness t, of greater than one, the liner disposed in a fixed relationship to the sheave and including a surface configured to receive the engagement surface of the tension member.
Dependencies are inferred from the claim text.