Modular chain newel with standard bearing

US8931615B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Ke Ye · 流花街道, CN
• Yanying Chen · 流花街道, CN
• Coliu Wu · Tangxia, CN
• Shouhong Wang · 流花街道, CN
• Qingdong Jiang · 流花街道, CN

Key dates

• Filing date: Mar 10, 2009
• Grant date: Jan 13, 2015
• Expiry date: May 25, 2030

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49947
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

A roller bearing and newel guide assembly (30) for a newel (24) in an escalator (10) has a newel guide (32), a roller chain (34), and a spring (40) connected between the roller chain (34) and the newel guide (32) to provide tension to the roller chain (34). The roller chain (34) comprises a series of interlinked chain units (36). Each chain unit (36) includes a frame (78), at least one roller bearing (72), and a pin (76) for connecting the roller bearing (72) to the frame (78). Each chain unit (36) has a female connector (62) and a male connector (64), which allow each chain unit (36) to connect to an adjacent chain unit (36) to form the roller chain (34).