Agricultural machine with plow having changeable penetrating angle
AssigneeSugano Farm Machinery Mfg. Co., Ltd.
InventorsMikio Tanimizu, Kouichi Kawano
Life of this patent
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Abstract
An agricultural machine including a fixed mast secured to a frame body so as to be projected from a front end portion of the frame body, a movable mast which is pivotably mounted to the fixed mast so as to be arcuately movable in an agricultural working direction relatively to the fixed mast and has a mount portion to which a top link of a tractor is mounted, and a mode selecting mechanism provided between the movable mast and the fixed mast for changing and fixing a positional relationship between the movable mast and the fixed mast interlockingly with a lifting operation of the agricultural machine to thereby freely change a penetrating angle of the agricultural machine into the soil.
Claims18
An agricultural machine having a frame and a mast through which a top link of a tractor is mounted to the frame to perform a plowing operation of soil through a running of the tractor, including:
- a fixed mast secured to said frame so as to be projected from a front end portion of said frame;
- a movable mast which is pivotably mounted to said fixed mast so as to be arcuately movable in an agricultural working direction relatively to said fixed mast and has a mount portion to which the top link is mounted;
- and
- means for changing a penetrating angle of said agricultural machine into the soil, said means for changing the penetrating angle comprising a mode selecting mechanism provided between said movable mast and said fixed mast for changing and fixing a positional relationship between said movable mast and said fixed mast interlockingly with a lifting operation of said agricultural machine, thereby to freely change the penetrating angle of said agricultural machine into the soil.
An agricultural machine having a frame and a mast through which a top link of a tractor is mounted to the frame to perform a plowing operation through a running of the tractor, including:
- a fixed mast secured to said frame so as to be projected from a front end portion of said frame;
- a movable mast which is pivotably mounted to said fixed mast so as to be arcuately movable in an agricultural working direction relatively to said fixed mast and has a mount portion to which the top link is mounted;
- and
- a mode selecting mechanism provided between said movable mast and said fixed mast for changing and fixing a positional relationship between said movable mast and said fixed mast interlockingly with a lifting operation of said agricultural machine to thereby freely change a penetrating angle of said agricultural machine into soil,
- wherein said fixed mast comprises a plate member having a U-shaped section, and said movable mast comprises a pair of plate members which are parallel linked to each other in an inner space of said fixed mast and has a pivot shaft which is rotatably mounted to said fixed mast, said movable mast being swingable around said pivot shaft in the inner space of said fixed mast.
An agricultural machine having a frame and a mast through which a top link of a tractor is mounted to the frame to perform a plowing operation through a running of the tractor, including:
- a fixed mast secured to said frame so as to be projected from a front end portion of said frame;
- a movable mast which is pivotably mounted to said fixed mast so as to be arcuately movable in an agricultural working direction relatively to said fixed mast and has a mount portion to which the top link is mounted;
- and
- a mode selecting mechanism provided between said movable mast and said fixed mast for changing and fixing a positional relationship between said movable mast and said fixed mast interlockingly with a lifting operation of said agricultural machine to thereby freely change a penetrating angle of said agricultural machine into soil, wherein said mode selecting mechanism includes a load receiving member fixed to said movable mast and a plate member which is rotatably secured to said fixed mast and has at one end portion thereof a curved surface engageable with said load receiving member, an arcuate motion of said movable mast being restricted or locked through the engagement between the curved surface of said plate member and said load receiving member.
Dependencies are inferred from the claim text.