Patent US3632906A successfully refreshed from Google Patents.
US3632906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cable winder on tractor
Assignee: Caterpillar Mitsubishi Ltd
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Filing: 1970-09-14
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Granted: 1972-01-04
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Expires: 1990-09-14
Abstract
Abstract A cable winder mounted on a tractor for a construction machine, which uses an electric motor as a prime mover. In the present invention is installed a reel driven with a torque motor. The tension of a hanging cable and the torque of the torque motor is balanced when the machine stands still; when it moves forward, the cable is tensioned and the torque motor reverses, and the cable is unwound from the reel. When the machine moves backward, cable tension decreases, the torque motor normally moves to wind the cable on the reel.
Inventors
- 👤 Toru Aihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:23
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4481; B65H75/4486; B60; B60L; B60L9/00; E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/7609; E02F3/7618; E02F9/00; E02F9/006; E02F9/20; E02F9/2058; E02F9/2095; H; H02; H02G; H02G11/00; H02G11/02; B60L2200/00; B60L2200/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
196 words
A cable winder mounted on a tractor in which motors are used as a prime mover comprising a reel assembly, the center of which is formed by a spiral case holding a connector of a group of lead wires between the outer and inner walls spirally bent and by a block which is fixed to the bottom of the spiral case and which has an opening to pass a group of lead wires through, and which is composed of a pair of upper and under rims prepared by mounting a plurality of stays horizontally and radially on the upper and under edges of the center of the reel assembly respectively; a shaft rotatably supporting the reel assembly, which is provided with an inner hole; a vertical torque motor driving the shaft through a chain; a plurality of sliprIngs vertically mounted on the lower part of the shaft; and a pulley assembly supporting the cable whereby the rotation of the torque motor is controlled only by the tension of the cable hanging on the ground from the reel and thereby the cable is adapted to follow the locus of, or to stop, the maneuver of the tractor.
Claim 2
Dependent Claim
196 words
A cable winder mounted on a tractor in which motors are used as a prime mover comprising a reel assembly, the center of which is formed by a spiral case holding a connector of a group of lead wires between the outer and inner walls spirally bent and by a block which is fixed to the bottom of the spiral case and which has an opening to pass a group of lead wires through, and which is composed of a pair of upper and under rims prepared by mounting a plurality of stays horizontally and radially on the upper and under edges of the center of the reel assembly respectively; a shaft rotatably supporting the reel assembly, which is provided with an inner hole; a vertical torque motor driving the shaft through a chain; a plurality of sliprIngs vertically mounted on the lower part of the shaft; and a pulley assembly supporting the cable whereby the rotation of the torque motor is controlled only by the tension of the cable hanging on the ground from the reel and thereby the cable is adapted to follow the locus of, or to stop, the maneuver of the tractor.
Claim 3
Dependent Claim
45 words
The cable winder according to claim 1 wherein the pulley assembly is fixed to the tip of a bar rotatably fixed to the periphery of the cable winder and composed of four gourd-shaped pulleys to form a cable path in the center of the pulleys.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-03 | 1975-07-05 | 1976-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-03 | 1979-07-05 | 1980-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-03 | 1983-07-05 | 1984-01-04 | $7700.00 | Window Closed / Lapsed |