Invention Grant
- Patent Title: Shock absorbing hitch
- Patent Title (中): 减震搭扣
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Application No.: US10564873Application Date: 2003-08-06
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Publication No.: US08047335B2Publication Date: 2011-11-01
- Inventor: Richard Fargo , Richard L. Hollowell
- Applicant: Richard Fargo , Richard L. Hollowell
- 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/US03/24542 WO 20030806
- International Announcement: WO2005/016812 WO 20050224
- Main IPC: B66B7/10
- IPC: B66B7/10 ; B66B7/08 ; B66B11/08

Abstract:
A shock-absorbing hitch termination (40) includes a terminating member (52) that moves against a first bias (62) responsive to a first level of tension on a load bearing member (26) associated with a car (22) and counterweight (24) in an elevator system (20). A support member (60) moves with the terminating members (52) against a second, passive bias (70) responsive to increased tension on the load bearing member (26). In one example, the second bias is provided by mechanical springs (70). In another example the second bias is provided by air springs. In still another example the second bias is provided by pressurized actuators (82). The shock-absorbing hitch termination may be supported for movement with the car, counterweight or both. In another example, the shock-absorbing hitch termination is provided in a stationary structure (90) within the elevator system.
Public/Granted literature
- US20060175152A1 Shock absorbing hitch Public/Granted day:2006-08-10
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