← Back to Patent Explorer
US3751891A Expired / Lapsed US ⏱️ 0.0 years remaining

Implement transport structure

Assignee: Case LLC
•
Filing: 1972-08-01
•
Granted: 1973-08-14
•
Expires: 1992-08-01
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A pull-type crop harvester having a crop harvesting platform mounted on a wheeled frame. The platform is elongated transversely to the normal forward direction of travel during a crop harvesting operation. The frame includes a hitch tongue connectible to the towing tractor. The hitch tongue is pivotable to a position transverse to the forward direction of travel. A transport wheel is carried on the hitch tongue for engaging the ground when the hitch tongue is in the transverse position whereby the crop harvester may be towed in an endwise direction. An auxiliary hitch pole is connectible between an end of the harvester and the tractor for the endwise transport.

Inventors

  • 👤 H Molzahn
  • 👤 D Tashiro
  • 👤 H Ralph

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 18:55
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/005; A01D; A01D67/00; A01D67/005; A01D75/00; A01D75/002

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 134 words
In a crop harvester having a wheel-supported L-shaped main frame which includes a first leg disposed longitudinally of the forward direction of travel of the harvester and a second leg extending transversely to said direction from the rear of the first leg, a crop harvesting platform supported from said frame adjacent to said first and second legs thereof, wherein the improvement comprises: a hitch tongue pivotally connected to the forward end of said first leg for pivotable movement between a first position extending forwardly from said first leg and a second position extending substantially parallel to said second leg; and a transport wheel mounted on said hitch tongue for rollably supporting said harvester for transport in a direction transverse to the forward direction of travel when said hitch tongue is in said second position.
Claim 2
Dependent Claim 134 words
In a crop harvester having a wheel-supported L-shaped main frame which includes a first leg disposed longitudinally of the forward direction of travel of the harvester and a second leg extending transversely to said direction from the rear of the first leg, a crop harvesting platform supported from said frame adjacent to said first and second legs thereof, wherein the improvement comprises: a hitch tongue pivotally connected to the forward end of said first leg for pivotable movement between a first position extending forwardly from said first leg and a second position extending substantially parallel to said second leg; and a transport wheel mounted on said hitch tongue for rollably supporting said harvester for transport in a direction transverse to the forward direction of travel when said hitch tongue is in said second position.
Claim 3
Dependent Claim 23 words
The subject matter of claim 1, wherein said hitch tongue in said second position is disposed along the forward portion of said platform.
Claim 4
Dependent Claim 163 words
In a crop harvester adapted for towing behind a tractor, the harvester including a generally horizontal L-shaped frame consisting of a forwardly extending first leg and a transversely extending second leg joined to the rear of said first leg, a pair of ground wheels supporting said frame, a crop harvesting platform supported on said frame forwardly of said second leg, wherein the improvement comprises: a hitch tongue connected to the forward end of said first leg and having a forward end adapted to be coupled to the tractor for towing the harvester forwardly during a harvesting operation; means mounting said hitch tongue on said first leg for pivotable movement about a generally vertical axis to a transport position generally parallel to said second leg and along the front of said platform; and a transport wheel mounted on said hitch tongue for rollably supporting the harvester for movement transversely to the forward direction of travel when said hitch tongue is in said transport position.
Claim 5
Dependent Claim 163 words
In a crop harvester adapted for towing behind a tractor, the harvester including a generally horizontal L-shaped frame consisting of a forwardly extending first leg and a transversely extending second leg joined to the rear of said first leg, a pair of ground wheels supporting said frame, a crop harvesting platform supported on said frame forwardly of said second leg, wherein the improvement comprises: a hitch tongue connected to the forward end of said first leg and having a forward end adapted to be coupled to the tractor for towing the harvester forwardly during a harvesting operation; means mounting said hitch tongue on said first leg for pivotable movement about a generally vertical axis to a transport position generally parallel to said second leg and along the front of said platform; and a transport wheel mounted on said hitch tongue for rollably supporting the harvester for movement transversely to the forward direction of travel when said hitch tongue is in said transport position.
Claim 6
Dependent Claim 29 words
The subject matter of claim 3, including a transport hitch pole connectable to one of said ground wheels for towing the harvester transversely to the forward direction of travel.
Claim 7
Dependent Claim 26 words
The subject matter of claim 3, including means for raising and lowering said transport wheel relative to said hitch tongue between raised and ground-engaging positions, respectively.
Claim 8
Dependent Claim 37 words
The subject matter of claim 4, including means for selectively retaining the other of said pair of ground wheels in a position parallel to said transport wheel when said hitch tongue is disposed in said transpOrt position.
Claim 9
Dependent Claim 173 words
A mobile implement adapted for towing behind a tractor in either a forward operative direction or an endwise transport direction, said implement comprising: a generally horizontal frame having a first leg disposed forwardly and a second leg disposed transversely from the rear of said first leg to define an L-shaped configuration for said frame; a first ground wheel supporting said frame proximate to the juncture of said first and second legs; a second ground wheel supporting said frame proximate to an end of said second leg disposed away from said juncture; a hitch tongue connected to the forward end of said first leg for coupling to the tractor for towing the implement in the forward direction; means mounting said hitch tongue on the forward end of the first leg for pivotable movement about a generally vertical axis to a transport position generally parallel to said second leg; and a transport wheel mounted on said hitch tongue for rollably supporting the implement for endwise transport when said hitch tongue is in said transport position.
Claim 10
Dependent Claim 173 words
A mobile implement adapted for towing behind a tractor in either a forward operative direction or an endwise transport direction, said implement comprising: a generally horizontal frame having a first leg disposed forwardly and a second leg disposed transversely from the rear of said first leg to define an L-shaped configuration for said frame; a first ground wheel supporting said frame proximate to the juncture of said first and second legs; a second ground wheel supporting said frame proximate to an end of said second leg disposed away from said juncture; a hitch tongue connected to the forward end of said first leg for coupling to the tractor for towing the implement in the forward direction; means mounting said hitch tongue on the forward end of the first leg for pivotable movement about a generally vertical axis to a transport position generally parallel to said second leg; and a transport wheel mounted on said hitch tongue for rollably supporting the implement for endwise transport when said hitch tongue is in said transport position.
Claim 11
Dependent Claim 33 words
The subject matter of claim 7, including means for shifting said first ground wheel to a position parallel to that of said transport wheel when said hitch tongue is in said transport position.
Claim 12
Dependent Claim 54 words
The subject matter of claim 7, including means mounting said second ground wheel for swinging movement about a generally vertical axis; and an auxiliary hitch pole connectable to said second ground wheel for controlling the direction thereof and connectable to the tractor, whereby the implement may be towed for transport in the endwise direction.
Claim 13
Dependent Claim 80 words
The subject matter of claim 7, including means for shifting said first ground wheel to a position parallel to that of said transport wheel when said hitch tongue is in said transport position; means mounting said second ground wheel for swinging movement about a generally vertical axis; and an auxiliary hitch pole connectable to said second ground wheel for controlling the direction thereof and connectable to the tractor, whereby the implement may be towed for transport in the endwise direction.
Claim 14
Dependent Claim 31 words
The subject matter of claim 7, including means for selectively retaining said transport wheel in raised and ground-engaging positions to provide for forward movement and endwise movement respectively of the implement.
Claim 15
Dependent Claim 119 words
In a harvester adapted for towing behind a tractor and having an elongated frame with its length transverse to the operative line of advance, a pair of wheels supporting said frame proximate to the rear thereof, a draft tongue extending forwardly from the frame proximate to one end of the frame and adapted for coupling to the tractor, wherein the improvement comprises: means mounting said draft tongue for repositioning to extend transversely to the line of advance and toward an end of the frame opposite to said one end; and a transport wheel mounted on said draft tongue for rollably supporting the forward portion of said frame when said draft tongue is disposed transversely to the line of advance.
Claim 16
Dependent Claim 119 words
In a harvester adapted for towing behind a tractor and having an elongated frame with its length transverse to the operative line of advance, a pair of wheels supporting said frame proximate to the rear thereof, a draft tongue extending forwardly from the frame proximate to one end of the frame and adapted for coupling to the tractor, wherein the improvement comprises: means mounting said draft tongue for repositioning to extend transversely to the line of advance and toward an end of the frame opposite to said one end; and a transport wheel mounted on said draft tongue for rollably supporting the forward portion of said frame when said draft tongue is disposed transversely to the line of advance.
Claim 17
Dependent Claim 43 words
The subject matter of claim 12, wherein said pair of wheels includes a first wheel proximate to said one end of said frame; and means for selectively retaining said first wheel for rolling movement in a transverse direction parallel to said transport wheel.
Claim 18
Dependent Claim 75 words
The subject matter of claim 12, wherein said pair of wheels includes a second wheel proximate to said opposite end of said frame; means mounting said second wheel for swinging movement about an upright pivot axis; a tow bar adapted to be connected to a tractor; and means for detachably connecting said tow bar to said second wheel for steerable control of the harvester for transport in directions transverse to the operative line of advance.
Claim 19
Dependent Claim 111 words
The subject matter of claim 12, wherein said pair of wheels includes a first wheel proximate to said one end of said frame; means for selectively retaining said first wheel for rolling movement in a transverse direction parallel to said transport wheel; said pair of wheels further including a second wheel proximate to said opposite end of said frame; means mounting said second wheel for swinging movement about an upright pivot axis; a tow bar adapted to be connected to a tractor; and means for detachably connecting said tow bar to said second wheel for steerable control of the harvester for transport in directions transverse to the operative line of advance.

References Cited (Backward Citations)

US3142144A Cited
US3240005A Cited
US3457709A Cited
US3515408A Cited
US3675725A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-08-13 1977-02-12 1977-08-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-08-13 1981-02-12 1981-08-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-08-13 1985-02-12 1985-08-14 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag