Coulter chisel tillage tool
First Claim
1. In a farm implement having a frame adapted to carry tools, a rockshaft rotatably mounted on the frame and at least one disc gang attached to the rockshaft, the improvement comprising:
- a mounting bracket having one end attached to a rockshaft and extending radially from a longitudinal axis of the rockshaft;
a spring means having one end coupled to an opposite end of said mounting bracket;
a rod having one end coupled to an opposite end of said spring means;
a bracket having one end rotatably attached to an opposite end of said rod and an opposite end rotatably attached to the rockshaft;
a yoke mounted on said opposite end of said bracket for rotation about a generally vertical axis; and
a plurality of discs rotatably attached to said yoke.
1 Assignment
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Accused Products
Abstract
A coulter chisel tillage tool includes a mounting apparatus for attaching a disc gang to a rockshaft. A bracket extends radially from the rockshaft and is connected to one end of a spring having its other end positioned in a retainer cup. The retainer cup is attached to one end of a rod which extends longitudinally through the spring and through an aperture formed in the mounting bracket with the other end of the rod rotatably attached to a bracket assembly. The bracket assembly includes a pair of bearing caps which rotatably engage the rockshaft and are positioned between a pair of plates which are maintained together by bolts. One of the bolts also extends through a yoke of a disc gang for rotatably mounting the disc gang for rotation about a generally vertical axis. The spring and bracket assembly permits the disc gang to rotate about the rockshaft when an obstacle is struck during normal operation.
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Citations
16 Claims
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1. In a farm implement having a frame adapted to carry tools, a rockshaft rotatably mounted on the frame and at least one disc gang attached to the rockshaft, the improvement comprising:
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a mounting bracket having one end attached to a rockshaft and extending radially from a longitudinal axis of the rockshaft; a spring means having one end coupled to an opposite end of said mounting bracket; a rod having one end coupled to an opposite end of said spring means; a bracket having one end rotatably attached to an opposite end of said rod and an opposite end rotatably attached to the rockshaft; a yoke mounted on said opposite end of said bracket for rotation about a generally vertical axis; and a plurality of discs rotatably attached to said yoke. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for mounting a disc gag on a rockshaft in a coulter chisel implement comprising:
spring means having one end coupled to a mounting bracket radially extending from a rockshaft and an opposite end coupled to one end of a bracket, an opposite end of said bracket being rotatably attached to the rockshaft by a pair of bearing caps rotatably mounted on the rockshaft and retained between a pair of plates fastened together by fasteners at least one of said fasteners adapted to rotatably mount said disc gang means attached to said bracket for mounting a disc gang for rotation about a generally vertical axis. - View Dependent Claims (12, 13)
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14. A disc gag for mounting on a rockshaft in a coulter chisel implement comprising:
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a plurality of discs separated by spools and rotatably mounted on an axle; a yoke having said axle rotatably attached thereto; means for rotatably mounting said yoke for rotation about a generally vertical axis and adapted to be mounted on a rockshaft for rotation about a longitudinal axis of the rockshaft said means for rotatably mounting including a pair of bearing caps adapted to rotatably engage the rockshaft, said bearing caps being retained between a pair of generally parallel extending plates on®
of said spring means; andspring means a having one end coupled to said means for rotatably mounting and an opposite end adapted to be coupled to a rockshaft. - View Dependent Claims (15, 16)
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Specification