US4096404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hoisting mechanism
Assignee: Individual
•
Filing: 1977-02-03
•
Granted: 1978-06-20
•
Expires: 1997-02-03
Abstract
Abstract The present invention relates to hoisting mechanisms and can be utilized to utmost effectiveness in electric hoists. The hoisting mechanism is provided with a rope drum enclosed within a casing and a driving unit of which the motor is accommodated within the rope drum and operatively connected with a reducing gear and a brake. The housing of the motor on the brake side is arranged in supports permitting angular displacement of the output shaft of the driving unit relative to the axis of symmetry of the mechanism and adapted to transmit to the reaction torque to the casing. The drum has one end thereof mounted in a support, the other end of the drum having a flange pivotally supported by the output shaft of the reducing gear of which the input shaft is axially aligned with the output shaft. The disclosed construction enhances reliability and durability of the hoist, facilitates its assembling, operating and maintenance and improves the ergonomic characteristics of the mechanism.
Inventors
- 👤 Donat Konstantinovich Sukhanov
- 👤 Sergei Ivanovich Blinov
- 👤 Leonid Leonidovich Bogoljubov
- 👤 Sergei Andreevich Kascheev
- 👤 Evgenia Nikolaevna Popova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:16
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/1004; H02K7/1012; H02K7/102; H02K7/1021; H02K7/1023; H02K7/1025
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A hoisting mechanism comprising: a casing; a rope-winding drum enclosed within said casing; a driving unit mounted coaxially with said drum and adapted to effect rotation of said drum to lift a load; a motor of said driving unit, accommodated within said drum and having a housing; a reducing gear of said driving unit, operatively connected with said motor and having an input shaft and an output shaft; the shafts of said reducing gear being axially aligned; a brake of said driving unit, operatively connected with said motor; the housing of said motor at the side of said brake being accommodated in supports mounted on said casing and permitting angular displacement of the output shaft of said driving unit relative to the axis of symmetry of the mechanism and adapted to transmit the reaction torque to said casing; one end of said drum being mounted in another support arranged between the external surface of said drum and said casing; a flange made on the other end of said drum and pivotally supported by the output shaft of said reducing gear.
Claim 2
Dependent Claim
180 words
A hoisting mechanism comprising: a casing; a rope-winding drum enclosed within said casing; a driving unit mounted coaxially with said drum and adapted to effect rotation of said drum to lift a load; a motor of said driving unit, accommodated within said drum and having a housing; a reducing gear of said driving unit, operatively connected with said motor and having an input shaft and an output shaft; the shafts of said reducing gear being axially aligned; a brake of said driving unit, operatively connected with said motor; the housing of said motor at the side of said brake being accommodated in supports mounted on said casing and permitting angular displacement of the output shaft of said driving unit relative to the axis of symmetry of the mechanism and adapted to transmit the reaction torque to said casing; one end of said drum being mounted in another support arranged between the external surface of said drum and said casing; a flange made on the other end of said drum and pivotally supported by the output shaft of said reducing gear.
Claim 3
Dependent Claim
41 words
A hoisting mechanism as claimed in claim 1, wherein said reducing gear is rigidly secured to said casing and has the input shaft thereof pivotally connected with the shaft of said motor, acting as the output shaft of the driving unit.
Claim 4
Dependent Claim
66 words
A hoisting mechanism as claimed in claim 1, wherein the housing of said motor is adapted to accommodate therein said reducing gear of said driving unit, the shaft of said motor being integral with the shaft of said reducing gear, the output shaft of the latter acting as the output shaft of the driving unit and having said flange of said drum directly pivotally supported thereby.
Claim 5
Dependent Claim
86 words
A mechanism as claimed in claim 1, wherein the supports of said housing are in the form of a pin-and-sleeve coupling of which the stationary member is said casing and the movable member is made up by lugs provided on said housing, the pins of the coupling being received in the lugs, one end of each pin being rigidly attached to said casing, and the other end of each pin being provided with a shoulder outside the respective lug, to limit axial displacement of said housing.
Claim 6
Dependent Claim
32 words
A mechanism as claimed in claim 4, wherein a clearance is left intermediate each pin and its respective lug, accommodating a resilient member preventing direct contact between said housing and said casing.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |