US4147262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Excavating and loading machine mounted on a wheeled type vehicle
Assignee: Komatsu Ltd
•
Filing: 1977-06-24
•
Granted: 1979-04-03
•
Expires: 1997-06-24
Abstract
Abstract An excavating and loading machine mounted on a wheeled type vehicle comprising front and rear frames having wheels rotatably mounted thereon, said front and rear frames being adapted to rotate relative to each other, and a vehicle body having an implement for effecting excavation and loading operations which is rotatably mounted on either of said front and rear frames. A pair of hydraulically operated cylinders are provided between said front and rear frames for controlling steering of the vehicle.
Inventors
- 👤 Haruhiko Umeda
- 👤 Masaru Uenoyama
- 👤 Kotoshige Ishizuki
- 👤 Hideo Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:57
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/358; E02F9/00; E02F9/08; E02F9/0841; E02F9/10; E02F9/12; E02F9/121
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
200 words
An excavating and loading machine mounted on a wheeled type vehicle comprising: a rear frame having wheels rotatably mounted thereon at both ends thereof, said rear frame having an axial cylinder formed thereon; first bearing means mounted on a lower part of the outer periphery of said axial cylinder; second bearing means mounted on an upper part of the outer periphery of said axial cylinder; a front frame having wheels rotatably mounted thereon at both ends thereof, said front frame being rotatably mounted on said axial cylinder of said rear frame about said first bearing means; a vehicle body having an implement for effecting excavation and loading operations, said vehicle body being rotatably mounted on said axial cylinder of said rear frame about said second bearing means; first rotating means for rotating said front frame relative to said rear frame about said axial cylinder; and second rotating means for rotating said vehicle body about said axial cylinder wherein said second means comprises a ring gear fixedly secured to the inner surface of said axial cylinder, and a motor having a pinion attached thereto and fixedly secured to said vehicle body, said ring gear being adapted to mesh with said pinion.
Claim 2
Dependent Claim
200 words
An excavating and loading machine mounted on a wheeled type vehicle comprising: a rear frame having wheels rotatably mounted thereon at both ends thereof, said rear frame having an axial cylinder formed thereon; first bearing means mounted on a lower part of the outer periphery of said axial cylinder; second bearing means mounted on an upper part of the outer periphery of said axial cylinder; a front frame having wheels rotatably mounted thereon at both ends thereof, said front frame being rotatably mounted on said axial cylinder of said rear frame about said first bearing means; a vehicle body having an implement for effecting excavation and loading operations, said vehicle body being rotatably mounted on said axial cylinder of said rear frame about said second bearing means; first rotating means for rotating said front frame relative to said rear frame about said axial cylinder; and second rotating means for rotating said vehicle body about said axial cylinder wherein said second means comprises a ring gear fixedly secured to the inner surface of said axial cylinder, and a motor having a pinion attached thereto and fixedly secured to said vehicle body, said ring gear being adapted to mesh with said pinion.
Claim 3
Dependent Claim
48 words
The excavating and loading machine of claim 1 wherein said first rotating means comprises a pair of hydraulically operated cylinders interconnecting said front frame and said rear frame, whereby steering can be made by selectively extending or contracting a piston rod of either of said pair of cylinders.
Claim 4
Dependent Claim
42 words
The excavating and loading machine of claim 1 wherein said first rotating means comprises a ring gear fixedly secured to the inside of said axial cylinder, and a motor having a pinion attached thereto and being fixedly secured to said front frame.
Claim 5
Dependent Claim
184 words
An excavating and loading machine mounted on a wheeled type vehicle, comprising a front frame having wheels rotatably mounted thereon at both ends thereof; a rear frame having wheels rotatably mounted thereon at both ends thereof; an intermediate frame having an axial cylinder formed thereon, said intermediate frame being pivotally connected to said front and rear frames; a vehicle body having an implement for effecting excavation and loading operations which is rotatably mounted on said axial cylinder; a pair of hydraulically operated cylinders mounted on both sides of said intermediate frame for interconnecting said front frame and said rear frame; rotating means for rotating said vehicle body about said axial cylinder, said rotating means including a ring gear fixedly secured to the inside of said axial cylinder, and a motor having a pinion attached thereto and being fixedly secured to said vehicle body, said ring gear being adapted to mesh with said pinion; a bracket fixedly secured to said intermediate frame; a bell crank pivotally mounted on said bracket; and a linkage interconnecting said front frame and said rear frame through said bell crank.
Claim 6
Dependent Claim
184 words
An excavating and loading machine mounted on a wheeled type vehicle, comprising a front frame having wheels rotatably mounted thereon at both ends thereof; a rear frame having wheels rotatably mounted thereon at both ends thereof; an intermediate frame having an axial cylinder formed thereon, said intermediate frame being pivotally connected to said front and rear frames; a vehicle body having an implement for effecting excavation and loading operations which is rotatably mounted on said axial cylinder; a pair of hydraulically operated cylinders mounted on both sides of said intermediate frame for interconnecting said front frame and said rear frame; rotating means for rotating said vehicle body about said axial cylinder, said rotating means including a ring gear fixedly secured to the inside of said axial cylinder, and a motor having a pinion attached thereto and being fixedly secured to said vehicle body, said ring gear being adapted to mesh with said pinion; a bracket fixedly secured to said intermediate frame; a bell crank pivotally mounted on said bracket; and a linkage interconnecting said front frame and said rear frame through said bell crank.
References Cited (Backward Citations)
SU235654A1
Cited
US2284237A
Cited
US2408359A
Cited
US2598863A
Cited
US3237781A
Cited
US3439937A
Cited
DE1957285A1
Cited
DE2117529A1
Cited
US3807586A
Cited
DE2321383A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |