FR2291145A1 - Electric jack operation system - uses motor of low power running off twelve volt DC supply with variable speed drive or high ratio reduction gear - Google Patents
Electric jack operation system - uses motor of low power running off twelve volt DC supply with variable speed drive or high ratio reduction gearInfo
- Publication number
- FR2291145A1 FR2291145A1 FR7424725A FR7424725A FR2291145A1 FR 2291145 A1 FR2291145 A1 FR 2291145A1 FR 7424725 A FR7424725 A FR 7424725A FR 7424725 A FR7424725 A FR 7424725A FR 2291145 A1 FR2291145 A1 FR 2291145A1
- Authority
- FR
- France
- Prior art keywords
- supply
- reduction gear
- speed drive
- high ratio
- low power
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/44—Devices, e.g. jacks, adapted for uninterrupted lifting of loads with self-contained electric driving motors
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Electric Motors In General (AREA)
- Earth Drilling (AREA)
Abstract
The system is particularly for use with car batteries, and the jack or ram is coupled to an electric motor designed to run on a 12V dc supply and suitable for operation from a very low-powered source. The electric motor can be coupled direct to the ram via a reduction gear of very high ratio, or via a variable-speed drive designed to give constant torque. With a 45 ampere-hour capacity battery and lifting 1 1/2 tons 0.5 metres 173 complete lifting and lowering operations can be typically carried out before battery recharging is necessary. To change from lifting to lowering the polarity of the motor is reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7424725A FR2291145A1 (en) | 1974-07-16 | 1974-07-16 | Electric jack operation system - uses motor of low power running off twelve volt DC supply with variable speed drive or high ratio reduction gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7424725A FR2291145A1 (en) | 1974-07-16 | 1974-07-16 | Electric jack operation system - uses motor of low power running off twelve volt DC supply with variable speed drive or high ratio reduction gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2291145A1 true FR2291145A1 (en) | 1976-06-11 |
Family
ID=9141340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7424725A Withdrawn FR2291145A1 (en) | 1974-07-16 | 1974-07-16 | Electric jack operation system - uses motor of low power running off twelve volt DC supply with variable speed drive or high ratio reduction gear |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2291145A1 (en) |
-
1974
- 1974-07-16 FR FR7424725A patent/FR2291145A1/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE7407546L (en) | ||
| ES8403167A1 (en) | Anode positioning system. | |
| GB1524880A (en) | Winch | |
| GB1088434A (en) | Compact power unit for golf bag cart | |
| CA1009347A (en) | Electric vehicle drive utilizing a torque converter in conjunction with a field controlled motor | |
| GB1463750A (en) | Friction-drive electricity generating method and equipment enabling electricity to be generated utilising the driving wheel of a motor vehicle | |
| GB1516068A (en) | Agitator unit with lift mechanism | |
| CN207890533U (en) | A kind of drive part by part formula heavy type single track crane system | |
| ES414046A1 (en) | Drive arrangement using electric motor with variable hydraulic transmission set in predetermined relationship to minimize battery drain | |
| FR2291145A1 (en) | Electric jack operation system - uses motor of low power running off twelve volt DC supply with variable speed drive or high ratio reduction gear | |
| GB1415258A (en) | Electrically powered land vehicles | |
| CN205172110U (en) | Driven wheel centre gripping formula car carrier of worm gear | |
| SE8005729L (en) | VEHICLE | |
| FR2408775A1 (en) | Hydrostatic transmission for automobile - has energy store with accumulator in high pressure feed between pump and drive motor | |
| AU2042683A (en) | Frequency controlled asynchronous motor | |
| GB1461716A (en) | Method for manoueuvering the driving unit of a tracked vehicle | |
| CN210554860U (en) | Bogie and vehicle power-assisted vehicle mover | |
| NL7614360A (en) | Freight container lifting equipment - has rope reeved round pulley driving power generator supplying accumulator for actuating mechanism | |
| FR2265614A1 (en) | Glider with auxillary power drive - using high efficiency accumulators and electric motor powering propeller | |
| FR2299263A1 (en) | Motor driven pulley block for load lifting - has chain pinion between separate housings for motor and speed reducer | |
| GB1061305A (en) | An overhead crane | |
| CN217804992U (en) | Electrically-driven crawler walking system | |
| JPS5247215A (en) | Converter system for use in battery-driven vehicles | |
| JPS5583402A (en) | Mobile power supply car | |
| FR2250655A1 (en) | Drive system for vehicles on high slope lines - has hydraulic motors with pumps driven by AC motors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |