FR2409224A1 - Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load - Google Patents
Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of loadInfo
- Publication number
- FR2409224A1 FR2409224A1 FR7735054A FR7735054A FR2409224A1 FR 2409224 A1 FR2409224 A1 FR 2409224A1 FR 7735054 A FR7735054 A FR 7735054A FR 7735054 A FR7735054 A FR 7735054A FR 2409224 A1 FR2409224 A1 FR 2409224A1
- Authority
- FR
- France
- Prior art keywords
- cam
- load
- hook
- gravity
- crane
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
A crane sling (12) has an attachment (10) which ensures that the load remains level when being lifted. A central plate (25) has a bell crank lever (27) pivoted on each side. The bell crank levers (27) support plates (30) which, in turn, support an oval cam (35) with a groove for the rope (15) of the sling (12). A spring (39) holes the cam (35) clear of the plate (25) so that the rope (15) can run freely over the cam (35) until the hook is vertically over the centre of gravity of the load (19). The resultant tensions in the ropes (14, 15) then lock the cam (35) against the plate (25).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7735054A FR2409224A1 (en) | 1977-11-22 | 1977-11-22 | Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7735054A FR2409224A1 (en) | 1977-11-22 | 1977-11-22 | Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2409224A1 true FR2409224A1 (en) | 1979-06-15 |
FR2409224B1 FR2409224B1 (en) | 1981-03-06 |
Family
ID=9197895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7735054A Granted FR2409224A1 (en) | 1977-11-22 | 1977-11-22 | Lifting sling attachment for crane - has cam to lock rope when hook is over centre of gravity of load |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2409224A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0207418A1 (en) * | 1985-06-26 | 1987-01-07 | Riley, Keith | Lifting device |
WO2021064535A1 (en) * | 2019-10-03 | 2021-04-08 | Nexter Systems | Wheel-handling device and method using such a device |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR322847A (en) * | 1902-05-27 | 1903-02-16 | Chevenier Louis | Improvements in hoists |
US1346243A (en) * | 1919-12-05 | 1920-07-13 | V L Ney Hay Tool Company | Hay-carrier |
FR677148A (en) * | 1929-06-20 | 1930-03-04 | Hoist for goods, bicycles, etc. | |
GB624753A (en) * | 1942-06-15 | 1949-06-15 | Leslie Meek Caldwell | Improvements in or relating to lifting slings |
FR948982A (en) * | 1943-03-11 | 1949-08-17 | Felco Hoists Ltd | self-balancing sling for lifting devices |
US2661231A (en) * | 1948-08-25 | 1953-12-01 | Leslie M Caldwell | Sling |
FR1094658A (en) * | 1953-07-21 | 1955-05-23 | ||
FR1105779A (en) * | 1954-07-28 | 1955-12-07 | Davaine Fils Et Cie | slinging |
GB805264A (en) * | 1954-01-12 | 1958-12-03 | Archer Jean Francois | Improvements in or relating to rope slings |
GB1360190A (en) * | 1971-06-14 | 1974-07-17 | Harland Wolff Ltd | Lifting beam |
-
1977
- 1977-11-22 FR FR7735054A patent/FR2409224A1/en active Granted
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR322847A (en) * | 1902-05-27 | 1903-02-16 | Chevenier Louis | Improvements in hoists |
US1346243A (en) * | 1919-12-05 | 1920-07-13 | V L Ney Hay Tool Company | Hay-carrier |
FR677148A (en) * | 1929-06-20 | 1930-03-04 | Hoist for goods, bicycles, etc. | |
GB624753A (en) * | 1942-06-15 | 1949-06-15 | Leslie Meek Caldwell | Improvements in or relating to lifting slings |
FR948982A (en) * | 1943-03-11 | 1949-08-17 | Felco Hoists Ltd | self-balancing sling for lifting devices |
US2661231A (en) * | 1948-08-25 | 1953-12-01 | Leslie M Caldwell | Sling |
FR1094658A (en) * | 1953-07-21 | 1955-05-23 | ||
GB805264A (en) * | 1954-01-12 | 1958-12-03 | Archer Jean Francois | Improvements in or relating to rope slings |
FR1105779A (en) * | 1954-07-28 | 1955-12-07 | Davaine Fils Et Cie | slinging |
GB1360190A (en) * | 1971-06-14 | 1974-07-17 | Harland Wolff Ltd | Lifting beam |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0207418A1 (en) * | 1985-06-26 | 1987-01-07 | Riley, Keith | Lifting device |
WO2021064535A1 (en) * | 2019-10-03 | 2021-04-08 | Nexter Systems | Wheel-handling device and method using such a device |
FR3101574A1 (en) * | 2019-10-03 | 2021-04-09 | Nexter Systems | WHEEL HANDLING DEVICE AND METHOD USING SUCH A DEVICE |
Also Published As
Publication number | Publication date |
---|---|
FR2409224B1 (en) | 1981-03-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |