Invention Grant
US08136637B2 Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
失效
用于确保检查的电梯井的顶部或底部的最小空间的安全装置，以及具有这种安全装置的电梯
- Patent Title: Safety device for securing minimum spaces at the top or bottom of an elevator shaft being inspected, and elevator having such safety devices
- Patent Title (中): 用于确保检查的电梯井的顶部或底部的最小空间的安全装置，以及具有这种安全装置的电梯
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Application No.: US12305785Application Date: 2006-06-30
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Publication No.: US08136637B2Publication Date: 2012-03-20
- Inventor: Thomas Coquerelle , Frédéric Beauchaud , Nicolas Fonteneau , Dominique Goulet , Olivier Dukacz , Gérard Sirigu , Pascal Rebillard
- Applicant: Thomas Coquerelle , Frédéric Beauchaud , Nicolas Fonteneau , Dominique Goulet , Olivier Dukacz , Gérard Sirigu , Pascal Rebillard
- Applicant Address: US CT Farmington
- Assignee: Otis Elevator Company
- Current Assignee: Otis Elevator Company
- Current Assignee Address: US CT Farmington
- Agency: Carlson, Gaskey & Olds PC
- International Application: PCT/IB2006/003103 WO 20060630
- International Announcement: WO2008/004021 WO 20080110
- Main IPC: B66B1/34
- IPC: B66B1/34
Abstract:
A safety device for an elevator system includes a retractable element mounted on a support. The retractable element has a stopping position in which a catch portion of the retractable element projects from the support to engage a triggering member of a safety brake associated with an elevator car as the elevator car traveling in a selected direction approaches a selected vertical position, and a retracted position. An actuator selectively controls the position of the retractable element. A position sensor is responsive to the position of the retractable element to make sure that it is in its stopping position when needed.
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