Soil cultivating machines

Information

  • Patent Grant
  • 4267891
  • Patent Number
    4,267,891
  • Date Filed
    Tuesday, May 31, 1977
    47 years ago
  • Date Issued
    Tuesday, May 19, 1981
    43 years ago
  • CPC
  • US Classifications
    Field of Search
    • US
    • 172 28
    • 172 32
    • 172 45
    • 172 50
    • 172 51
    • 172 52
    • 172 57
    • 172 60
    • 172 63
    • 172 70
    • 172 71
    • 172 72
    • 172 73
    • 172 112
    • 172 118
    • 172 123
    • 172 548
    • 172 549
    • 172 550
    • 172 556
    • 172 701
    • 172 713
    • 172 719
    • 172 747
    • 172 113
    • 308 DIG 10
  • International Classifications
    • A01B1700
    • A01B4904
Abstract
A cultivating machine has groups of soil working tines that are mounted on an elongated support that is driven to rotate about a horizontal axis. The tines are mounted in spaced apart groups and guide members converge at the rear of the groups to form ridges of worked soil. Each group includes tine units that are formed by opposing bracket portions clamped to the support. Strikers can be mounted on the support between groups of tines and the strikers are pivotable about respective horizontal axes spaced from the support's axis of rotation. The strikers are positioned to excise crop leaves or emerged growth on the ridges. Hoods and a grating ensure that the top layer of worked soil is free of debris. Screening plates having obliquely upwardly and inwardly inclined inner edges are located at the lower, front, outer corners of the hood to prevent the rearwardly adjacent time groups from displacing soil too far laterally.
Description
Claims
  • 1. A soil cultivating machine comprising a frame and a plurality of soil working members being mounted on elongated support means on said frame, said support means being rotatable about a horizontal transverse axis and driving means engaging said support means, said soil working members being arranged in spaced apart groups along the length of said support means and crop strikers being positioned on said support means between successive groups of soil working members, spaced apart convergent pairs of guide members being located rearwardly of said groups of soil working members with respect to the normal direction of machine travel and openings being formed between said pairs, said crop strikers being located in front of the openings between the pairs of guide members and said guide members being positioned to engage crop displaced by said crop strikers and soil working members to deposit same in swathes, said support means being an elongated substantially horizontal support which, together with said working members is partially surrounded by a screening hood, the leading edge of said hood being located below the longitudinal axis of said support, said leading edge having opposite ends with screening plates and said screening plates having obliquely upwardly and inwardly inclined inner edges.
  • 2. A machine as claimed in claim 1, wherein two of said strikers are positioned at opposite sides of the support means, between successive groups of soil working members, each of said strikers being pivoted to said support means.
  • 3. A machine as claimed in claim 1, wherein said working members comprise pairs of tines in groups and said pairs are diametrically opposed to one another on a support of said support means.
  • 4. A machine as claimed in claim 3, wherein two tines of each diametrically opposed pair are spaced apart from one another lengthwise along said support.
  • 5. A machine as claimed in claim 4, wherein each tine is substantially hook-shaped and comprises an inner portion that is substantially tangential with an imaginary circle centered upon the longitudinal axis of said support, the outer end of said inner portion adjoining an outer portion which extends forwardly from said inner portion with respect to the direction of operative rotation of said support.
  • 6. A machine as claimed in claim 3, wherein the inner portion of each tine extends rearwardly with respect to the direction on operative rotation of the support from a fastening to said support.
  • 7. A machine as claimed in claim 1, wherein flexible flaps are mounted on the rear of the hood and located in said openings.
Priority Claims (1)
Number Date Country Kind
7702108 Feb 1977 NLX
US Referenced Citations (13)
Number Name Date Kind
1447883 Peterson Mar 1923
2150839 Miller et al. Mar 1939
2351361 Ockrant et al. Jun 1944
2477662 Seaman Aug 1949
2754744 Hall Jul 1956
2795176 O'Hara Jun 1957
3347188 Richey Oct 1967
3532169 Lely et al. Oct 1970
3557880 Lely et al. Jan 1971
3765491 Lely et al. Oct 1973
3791322 Lely et al. Feb 1974
3882594 Jackson et al. May 1975
3970012 Jones Jul 1976
Foreign Referenced Citations (3)
Number Date Country
2145899 Mar 1972 DEX
45053 Sep 1961 PLX
275006 Aug 1927 GBX