Toshiba Elevator Kabushiki Kaisha

Kabushiki Kaisha Toshiba

Shigeo Nakagaki

Takayuki Kikuchi

Yoshinobu Ishikawa

Kenichi Fujii

Satoshi Yamaguchi

Hideo Takahashi

Tadashi Munakata

Yoshio Ogimura

Kosei Kamimura

Kazuhisa Hara

Hitoshi Kawamoto

Yoshifumi Ikeda

Nobuhiko Teshima

Yoshiaki Fujita

Shin Murakami

Hideya Kohara

Tadashi Shudo

Kazuaki Miyakoshi

Yukihiko Kazao

Kazuo Shimane

Tomohiko Matsuura

Masaru Tateyama

An escalator step includes a tread having a body section on which a plurality of convex sections are arranged in parallel, a riser connected to a rear end portion of the tread and having thereon a plurality of convex sections and a plurality of concave sections formed between the adjacent convex sections, and a shock absorbing cleat provided on a corner at which the riser and tread are connected to each other. The shock absorbing cleat includes a plurality of long convex sections which are arranged in parallel and a plurality of short convex sections which are arranged in parallel between the adjacent long convex sections. The shock absorbing cleat is formed of a polymeric material having a Young's modulus of 1000 MPa or less.

Escalator step and escalator having thereof

An escalator step includes: a tread that includes a body section wherein a plurality of convex sections, which are parallel in a travelling direction, are arranged in a width direction; a riser that is coupled at a rear end portion of the body section of the tread and on which a plurality of convex sections are arranged in a width direction, with troughs being formed between adjacent convex sections; and a shock absorbing cleat located in a notch formed in a corner portion where the riser and the tread are coupled together. On the shock absorbing cleat, a plurality of convex sections, arranged in a width direction and parallel to the travelling direction, rear end surfaces are flush with troughs of the riser, each of the convex sections of the shock absorbing cleat is shifted a half pitch from each of the convex sections of the riser.

A footstep guide rail () (rail body) is arranged so that a level H of a horizontal surface is set at the position obtained by adding a designated offset &#x3b4; to a tangential line L of a drive sprocket () and the footstep guide rail () is provided, at its one end on an introductory side of the drive sprocket (), with a curved part (). At a reference position closest to the drive sprocket (), the horizontal surface of the footstep guide rail () is changed to the curved part (). Consequently, it is possible to absorb velocity unevenness of one footstep roller approaching the drive sprocket ().

Conveyer apparatus

A mountainous or valley-shaped curved partis provided in a part of a footstep guide railfor guiding a movement of footstep rollerslinked by a footstep chain, the part being positioned in the vicinity of a drive sprocket. Consequently, owing to meshing of the footstep rollerswith the drive sprocket, an unevenness in velocity of the footstep rollersis absorbed by the curved part, so that a moving velocity of the footstep rollersmoving on the downstream of the curved partis maintained constantly, suppressing vibrating of the footsteps

Conveyer apparatus having footsteps

An elevator including a cage for accommodating passengers configured to move up and down in a shaft along a guide rail, a support base attached to a lower portion of the cage, a plurality of car sheaves rotatably secured to the support base through respective axles, a cable placed around the car sheaves and configured to suspend the cage, and at least one damper coupled to the cage and configured to attenuate vibration transferred from the cable to the cage.

Elevator having vibration damping to attenuate vibration transfer to an elevator cage

An elevator installed in an elevator shaft has a cage, a counterweight, hoist cables suspending the cage and the counterweight, and a driving unit disposed outside a space in which the cage moves vertically in the elevator shaft, and provided with drive sheaves around which the hoist cables are wound to move the cage and the counterweight in the elevator shaft by the driving unit. The hoist cables are wound around the drive sheaves and sheaves supported on the cage and the counterweight in two-to-one roping arrangement such that the driving unit is at a level below the ceiling of the cage as located at its uppermost position. The cage-side sheaves are disposed at four positions on the lower portion of the cage respectively and symmetrically with respect to a center of gravity of the cage in a top plan view.

Elevator

Vibration control apparatus for elevator

Growing community of inventors

Saitama, Japan

Shigeo Nakagaki