CA2487979A1 - Human power amplifier for lifting load including apparatus for preventing slack in lifting cable - Google Patents
Human power amplifier for lifting load including apparatus for preventing slack in lifting cable Download PDFInfo
- Publication number
- CA2487979A1 CA2487979A1 CA002487979A CA2487979A CA2487979A1 CA 2487979 A1 CA2487979 A1 CA 2487979A1 CA 002487979 A CA002487979 A CA 002487979A CA 2487979 A CA2487979 A CA 2487979A CA 2487979 A1 CA2487979 A1 CA 2487979A1
- Authority
- CA
- Canada
- Prior art keywords
- load
- operator
- lifting
- effector
- power amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
A human power amplifier assist device (10) includes an end-effector (14) that is grasped by a human operator and applied to a load (25). The end-effector (14) is suspended, via a line (13), from a take-up pulley (11), winch or drum that is driven by an actuator (12) to lift or lower the load (25). The end-effector (14) includes a force sensor (31) that measures the vertical force imposed on the end-effector (14) by the operator and delivers a signal to a controller (20). The controller (20) and actuator (12) are structured in such a way that a predetermined percentage of the force necessary to lift or lower the load (25) is applied by the actuator (12), with the remaining force being supplied by the operator. The load (25) thus feels lighter to the operator, but the operator does not lose the sense of lifting against both the gravitation and inertial forces originating in the load (25).
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13400299P | 1999-05-13 | 1999-05-13 | |
US60/134,002 | 1999-05-13 | ||
US14653899P | 1999-07-30 | 1999-07-30 | |
US14654199P | 1999-07-30 | 1999-07-30 | |
US60/146,538 | 1999-07-30 | ||
US60/146,541 | 1999-07-30 | ||
US09/443,278 US6386513B1 (en) | 1999-05-13 | 1999-11-18 | Human power amplifier for lifting load including apparatus for preventing slack in lifting cable |
US09/443,278 | 1999-11-18 | ||
CA002373247A CA2373247C (en) | 1999-05-13 | 2000-02-17 | Human power amplifier for lifting load including apparatus for preventing slack in lifting cable |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002373247A Division CA2373247C (en) | 1999-05-13 | 2000-02-17 | Human power amplifier for lifting load including apparatus for preventing slack in lifting cable |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2487979A1 true CA2487979A1 (en) | 2000-11-23 |
CA2487979C CA2487979C (en) | 2009-06-02 |
Family
ID=34139840
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002487979A Expired - Lifetime CA2487979C (en) | 1999-05-13 | 2000-02-17 | Human power amplifier for lifting load including apparatus for preventing slack in lifting cable |
CA002487992A Expired - Lifetime CA2487992C (en) | 1999-05-13 | 2000-02-17 | Human power amplifier for lifting load including apparatus for preventing slack in lifting cable |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002487992A Expired - Lifetime CA2487992C (en) | 1999-05-13 | 2000-02-17 | Human power amplifier for lifting load including apparatus for preventing slack in lifting cable |
Country Status (1)
Country | Link |
---|---|
CA (2) | CA2487979C (en) |
-
2000
- 2000-02-17 CA CA002487979A patent/CA2487979C/en not_active Expired - Lifetime
- 2000-02-17 CA CA002487992A patent/CA2487992C/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2487992C (en) | 2008-05-20 |
CA2487979C (en) | 2009-06-02 |
CA2487992A1 (en) | 2000-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20200217 |