US3640345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable harrow cart
Assignee: Noble Manufacturing Co
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Filing: 1969-09-08
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Granted: 1972-02-08
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Expires: 1989-09-08
Abstract
Abstract A foldable sectional tow-type implement, including a wheel cart having a centrally located drawbar revolvably mounted on a horizontal axis extending transversely of the direction of travel, and a pair of outboard sections interconnected to the centrally located drawbar and each being revolvable with the drawbar and swingable in a fore-and-aft direction relative thereto when revolved to a vertical transport position. Each of the drawbars serves to support an earthworking tool so that when the drawbars are in an operative position, the earthworking tools engage the surface of the ground and when the drawbars are swung to an inoperative position, the associated earthworking tools are raised to an inoperative or transport position. Flexible retaining members connect and support the outboard sections to the cart forward of the sections when the implement is in its operative position. The retaining members may be released when the tools are in the raised inoperative position to permit the outboard sections to be folded. The mechanism for revolving the drawbars and raising the tools is wholly independent of the release mechanism for the retaining members. The flexible retaining members are connected to an elongate release member pivotally connected to the cart in front of the sections. The elongate member has a hinge intermediate the ends thereof to permit the member to fold at least partially during folding movement of the end sections to prevent the flexible retaining members from rising into entanglement with portions of the tools in their folded positions.
Inventors
- 👤 Harry Sosalla
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:44
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/02
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
268 words
In a mobile foldable sectional implement which includes a mobile cart for travel over the ground, said cart being adapted for connection to a prime mover and including a frame having tool-carrying means and revolvably mounted on the cart and extending transversely of the direction of travel and being revolvable about an axis transversely of the direction of travel for movement between a generally horizontal operative position and a generally vertical inoperative or transport position with the tools extending upwardly from said axis, said tool-carrying means having a central section and a pair of end sections, the end sections being hinged to the central section for swinging movement relative to the central section to a rearward folded position in angular relation to the central section when the frame is in said vertical transport position, and power means on said cart for revolving said frame about said axis to permit folding said end sections, the improvement comprising retaining means connected between said end sections and a release member on said cart forward of said sections to support the end sections in a horizontal direction against rearward movement when the end sections are in said horizontal operative position, and means totally independent of said power means for releasing said retaining means and said release member to permit said end sections to be folded when in said vertical transport position without disconnecting the retaining means from the cart or the end sections, folding of said end sections relative to said cart pulling on and moving said retaining means and said release member after release thereof totally independently of said power means.
Claim 2
Dependent Claim
268 words
In a mobile foldable sectional implement which includes a mobile cart for travel over the ground, said cart being adapted for connection to a prime mover and including a frame having tool-carrying means and revolvably mounted on the cart and extending transversely of the direction of travel and being revolvable about an axis transversely of the direction of travel for movement between a generally horizontal operative position and a generally vertical inoperative or transport position with the tools extending upwardly from said axis, said tool-carrying means having a central section and a pair of end sections, the end sections being hinged to the central section for swinging movement relative to the central section to a rearward folded position in angular relation to the central section when the frame is in said vertical transport position, and power means on said cart for revolving said frame about said axis to permit folding said end sections, the improvement comprising retaining means connected between said end sections and a release member on said cart forward of said sections to support the end sections in a horizontal direction against rearward movement when the end sections are in said horizontal operative position, and means totally independent of said power means for releasing said retaining means and said release member to permit said end sections to be folded when in said vertical transport position without disconnecting the retaining means from the cart or the end sections, folding of said end sections relative to said cart pulling on and moving said retaining means and said release member after release thereof totally independently of said power means.
Claim 3
Dependent Claim
93 words
The implement of claim 1 wherein said retaining means includes a pair of flexible cables connected between said cart forward portions and said end sections, first latch means on said cart forward portions and cooperating second latch means on the forward end of said retaining means to releasably connect the cables to the cart forward positions, said second latch means being mounted on the cart for front to rear movement to correspondingly move the front ends of said cables and thereby permit folding and unfolding said end sections independently of said power means.
Claim 4
Dependent Claim
27 words
The implement of claim 2 including means causing said second latch means to move forwardly on said cart automatically as a result of unfolding said end sections.
Claim 5
Dependent Claim
30 words
The implement of claim 3 including means operative from an operator''s position on said prime mover to unlatch said first and second latch means to permit folding said end sections.
Claim 6
Dependent Claim
277 words
In a mobile foldable sectional implement which includes a mobile cart for travel over the ground, said cart being adapted for connection to a prime mover and including a tool-carrying means revolvably mounted on the cart and extending transversely of the forward direction of travel and being revolvable about an axis transversely of the direction of travel for movement between a generally horizontal operative position and a generally vertical inoperative or transport position with the tools extending upwardly from said axis, said tool-carrying means having a central section and a pair of end sections, the end sections being hinged to the central section for swinging movement relative to the central section to a rearward folded position in angular relation to the central section when the frame is in vertical transport position, and a pair of elongate, flexible members each having one end thereof connected with one of said end sections, the improvement comprising an elongate rigid release member pivotally connected at one end to said cart in front of said sections and connected at the other end to the other end of at least one of said flexible members, said release member being pivotable generally between a horizontal position forward of said pivotal connection to retain the end sections in said unfolded position and a generally vertical position above said pivotal connection when the end sections are completely folded, said release member having hinge means intermediate the ends thereof to permit the release member to fold at least partially during folding movement of said end sections to avoid raising said flexible members into entanglement with portions of the tools in the folded position of the end sectioNs.
Claim 7
Dependent Claim
277 words
In a mobile foldable sectional implement which includes a mobile cart for travel over the ground, said cart being adapted for connection to a prime mover and including a tool-carrying means revolvably mounted on the cart and extending transversely of the forward direction of travel and being revolvable about an axis transversely of the direction of travel for movement between a generally horizontal operative position and a generally vertical inoperative or transport position with the tools extending upwardly from said axis, said tool-carrying means having a central section and a pair of end sections, the end sections being hinged to the central section for swinging movement relative to the central section to a rearward folded position in angular relation to the central section when the frame is in vertical transport position, and a pair of elongate, flexible members each having one end thereof connected with one of said end sections, the improvement comprising an elongate rigid release member pivotally connected at one end to said cart in front of said sections and connected at the other end to the other end of at least one of said flexible members, said release member being pivotable generally between a horizontal position forward of said pivotal connection to retain the end sections in said unfolded position and a generally vertical position above said pivotal connection when the end sections are completely folded, said release member having hinge means intermediate the ends thereof to permit the release member to fold at least partially during folding movement of said end sections to avoid raising said flexible members into entanglement with portions of the tools in the folded position of the end sectioNs.
Claim 8
Dependent Claim
25 words
The implement of claim 5 including biasing means connected between the cart and said release member urging said release member toward said forward horizontal position.
Claim 9
Dependent Claim
71 words
The implement of claim 5 wherein said hinge means defines an elbow on said release member when the end sections are folded, with a lower portion of said release member disposed vertically above said pivotal connection with the cart and an upper portion extending rearwardly at an angle to the lower portion, and with the flexible members connected to the free rear end of the upper portion of the release member.
Claim 10
Dependent Claim
35 words
The implement of claim 7 including biasing means connected between the cart and the lower portion of said release member urging the release member toward said forward horizontal position with the release member straightened out.
Claim 11
Dependent Claim
39 words
The implement of claim 8 including latch means for holding the upper portion of said release member down against the cart when said end sections are unfolded and thereby retain and support the end sections against horizontal rearward movement.
References Cited (Backward Citations)
US2095417A
Cited
US2828597A
Cited
US2778182A
Cited
US3162459A
Cited
US3491836A
Cited
US3539016A
Cited
US3428333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-07 | 1975-08-09 | 1976-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-07 | 1979-08-09 | 1980-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-07 | 1983-08-09 | 1984-02-08 | $7700.00 | Window Closed / Lapsed |