Invention Grant
US07992684B2 Device for sealing escalator or moving walkway drives 有权
用于密封自动扶梯或移动式走道驱动装置

  • Patent Title: Device for sealing escalator or moving walkway drives
  • Patent Title (中): 用于密封自动扶梯或移动式走道驱动装置
  • Application No.: US11489727
    Application Date: 2006-07-20
  • Publication No.: US07992684B2
    Publication Date: 2011-08-09
  • Inventor: Alfred Thiel
  • Applicant: Alfred Thiel
  • Applicant Address: FI Helsinki
  • Assignee: Kone Corporation
  • Current Assignee: Kone Corporation
  • Current Assignee Address: FI Helsinki
  • Agency: Venable LLP
  • Agent Robert Kinberg; Ryan M. Flandro
  • Priority: DE102004002836 20040120
  • Main IPC: F16N25/00
  • IPC: F16N25/00
Device for sealing escalator or moving walkway drives
Abstract:
The invention relates to an escalator or moving walkway that includes a drive shaft rotating at a relatively low peripheral speed around a horizontal axis and at least one sealing element associated with the drive shaft. Lubricant is supplied to the drive shaft and can escape from leakages at the one sealing element. A device is provided for a permanent recirculation of the lubricant escaping from the leakages. The device includes at least one conveyor element arranged downstream of the sealing element, seen in the direction of the leakage, and at least one recirculation element for the lubricant. The recirculation element cooperates with the conveyor element to return the lubricant into a region upstream of the at least one sealing element.
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