ESCALATOR - HITACHI LTD

Title:

ESCALATOR

Document Type and Number:

WIPO Patent Application WO/2000/064799

Kind Code:

A1

Abstract:

An escalator (1) moving with a plurality of steps (2) joined to an endless chain (8), wherein front wheel guide means are provided which are adapted to increase a distance in straight line, which is going to decrease when the chain (8) moves arcuately at both end portions (11, 12) of the escalator, between front wheels (23) of two adjacent steps (2). The escalator is also provided with means for shifting paths (23a) followed by front wheels (23) of the turning steps at both end portions (11, 12) of the escalator from paths (8a) followed by the turning portions of the chain (8) which are at both end portions of the escalator toward outer edges of the end portions of the escalator. Owing to this arrangement, even when the radius of turning movements of the steps (2) at both end portions (11, 12) of the escalator is reduced, the interference between adjacent steps (2) rarely occurs. This enables the radius of turning movements of the steps (2) to be set smaller than that of turning movements of the steps of a conventional escalator, and a distance (H) between upper and lower portions of the escalator (1) to be reduced.

More Like This:

WO/2012/161691	POLYGON COMPENSATION COUPLING FOR CHAIN AND SPROCKET DRIVEN SYSTEMS
JPS63112390	DRIVE FOR ESCALATOR

Inventors:

UTSUNOMIYA HIROFUMI (JP)
SAITOH CHUICHI (JP)
OJIMA KAZUHIRA (JP)

Application Number:

PCT/JP1999/002210

Publication Date:

November 02, 2000

Filing Date:

April 26, 1999

Export Citation:

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Assignee:

HITACHI LTD (JP)
HITACHI BUILDING SYS CO LTD (JP)
UTSUNOMIYA HIROFUMI (JP)
SAITOH CHUICHI (JP)
OJIMA KAZUHIRA (JP)

International Classes:

B66B23/02; B66B23/14; (IPC1-7): B66B23/02; B66B23/14

Foreign References:

JPS58207207A

1983-12-02

Other References: