Row crop cultivator

Claim 2

In an earth working implement having a frame means connectable to a tractor, tool bar means, linkage means connecting the tool bar means with the frame means, a plurality of spaced earth working tools mounted on the tool bar means for working the soil adjacent rows of crops, the improvement of: means mounted on the tool bar means for making a lOngitudinal furrow in the soil between adjacent rows of crops, said means mounted on the tool bar means comprising furrowing tool means, and shield means having a pair of rearwardly converging generally upright members located between adjacent rows of crops, one of said members located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means, said furrowing tool means and upright members of the shield means forming on movement of the implement a longitudinal furrow in the soil between adjacent rows of crops.

Claim 3

The implement of claim 1 wherein: said means mounted on the tool bar means includes a longitudinal member mounted on the tool bar means, said furrowing tool means having a generally upright standard mounted on the rear portion of the longitudinal member.

Claim 4

The implement of claim 2 wherein: said shield means is mounted on the standard to confine the worked soil to the space between the adjacent rows of crops.

Claim 5

The implement of claim 1 wherein: said shield means includes means to adjustably support the upright members whereby the converging relationship between the upright members can be changed.

Claim 6

The implement of claim 1 wherein: said shield means has top members and means to adjustably mount the upright members on the top members whereby the converging relationship between the upright members can be changed.

Claim 7

The implement of claim 4 wherein: the furrowing tool means includes a generally upright standard, said top members being mounted on said standard.

Claim 8

In an earth working implement having a frame means connectable to a tractor, tool bar means, linkage means connecting the tool bar means with the frame means, a plurality of spaced earth working tool means mounted on the tool bar means for working the soil adjacent rows of crops, the improvement of: row guide assembly means mounted on the tool bar means for controlling the transverse position of the tool bar means to maintain the positions of the earth working tools adjacent the rows of crops; said row guide assembly means comprising forward wheel means adapted to follow a longitudinal furrow located between adjacent rows of crops, a furrowing tool means longitudinally aligned behind the wheel means, and shield means having a pair of rearwardly converging members located between adjacent rows of crops; one of said members of the shield means located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means: said furrowing tool means and converging members of the shield means forming on movement of the implement a furrow in the soil longitudinally aligned with the wheel means.

Claim 9

In an earth working implement having a frame means connectable to a tractor, tool bar means, linkage means connecting the tool bar means with the frame means, a plurality of spaced earth working tool means mounted on the tool bar means for working the soil adjacent rows of crops, the improvement of: row guide assembly means mounted on the tool bar means for controlling the transverse position of the tool bar means to maintain the positions of the earth working tools adjacent the rows of crops; said row guide assembly means comprising forward wheel means adapted to follow a longitudinal furrow located between adjacent rows of crops, a furrowing tool means longitudinally aligned behind the wheel means, and shield means having a pair of rearwardly converging members located between adjacent rows of crops; one of said members of the shield means located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means: said furrowing tool means and converging members of the shield means forming on movement of the implement a furrow in the soil longitudinally aligned with the wheel means.

Claim 10

The implement of claim 7 wherein: said row guide assembly includes a longitudinal member mounted on the tool bar means, means mounting the wheel means on the forward portion of the member, said furrowing tool means having a generally upright standard mounted on the rear portion of the longitudinal member.

Claim 11

The implement of claim 7 wherein: said shield means include means to adjustably support the upright members whereby the converging relationship between the upright members can be changed.

Claim 12

The implement of claim 7 wherein: said shield means has top members and means to adjustably mount the upright members on the top members whereby the converging relationship between the upright members can be changed.

Claim 13

The implement of claim 10 wherein: the furrowing tool means includes a generally upright standard, said top members being mounted on said standard.

Claim 14

An earth working implement mountable on a tractor comprising: main frame means connectable to a tractor, tool bar means, linkage means connecting the tool bar means with the main frame means, a plurality of spaced earth working tools mounted on the tool bar means for working the soil adjacent rows of crops, and row guide assembly means mounted on the tool bar means for controlling the transverSe position of the tool bar means to locate the earth working tools adjacent the rows of crops, said row guide assembly means having a forward wheel means adapted to follow a longitudinal furrow located between adjacent rows of crops, a rear furrowing tool means longitudinally aligned with the wheel means, and shield means having a pair of rearwardly converging generally upright members located between adjacent rows of crops, one of said members located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means, said furrowing tool means and upright members of the shield means forming on movement of the implement a furrow in the soil longitudinally aligned with the wheel means.

Claim 15

An earth working implement mountable on a tractor comprising: main frame means connectable to a tractor, tool bar means, linkage means connecting the tool bar means with the main frame means, a plurality of spaced earth working tools mounted on the tool bar means for working the soil adjacent rows of crops, and row guide assembly means mounted on the tool bar means for controlling the transverSe position of the tool bar means to locate the earth working tools adjacent the rows of crops, said row guide assembly means having a forward wheel means adapted to follow a longitudinal furrow located between adjacent rows of crops, a rear furrowing tool means longitudinally aligned with the wheel means, and shield means having a pair of rearwardly converging generally upright members located between adjacent rows of crops, one of said members located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means, said furrowing tool means and upright members of the shield means forming on movement of the implement a furrow in the soil longitudinally aligned with the wheel means.

Claim 16

The implement of claim 1 wherein: said row guide assembly means includes a longitudinal member mounted on the tool bar means, means mounting the wheel means on the forward portion of the member, said furrowing tool means having an upright standard mounted on the rear portion of the member, and a shovel mounted on the lower portion of the standard.

Claim 17

The implement of claim 13 wherein: said shield means is mounted on the standard to confine the worked soil to the space between adjacent rows of crops.

Claim 18

The implement of claim 13 including: adjustable means connecting the standard to the longitudinal member, said adjustable means comprising a block means having an upright convex face and an upright flat edge opposite the face, means on the longitudinal member engageable with the convex face, said standard engageable with the flat edge of the block means, sand holding means engageable with the standard to hold the standard in engagement with the block means and to hold the block means in engagement with the means on the longitudinal member.

Claim 19

The implement of claim 15 wherein: the means on the longitudinal member comprise vertically spaced cylindrical members and the holding means comprise vertically spaced bolts engaging vertically spaced portions of the standard.

Claim 20

The implement of claim 1 wherein: the main frame means has a section mountable on the tractor, a beam adjacent an end of the section, arm means pivotally mounting the beam to the section and holding means releasably connecting an end of the beam to the center section, second tool bar means, linkage means connecting the second tool bar means to said beam, a plurality of spaced earth working tools mounted on the second tool bar means for working the soil adjacent rows of crops, and row guide assembly means mounted on the second tool bar means for controlling the transverse position of the second tool bar means to locate the earth working tools adjacent the rows of crops, said row guide assembly means having a forward wheel means adapted to follow a longitudinal furrow located between adjacent rows of crops, a rear furrowing tool means longitudinally aligned with the wheel means, and shield means having a pair of rearwardly converging generally upright members located between adjacent rows of crops, one of said members located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means, said furrowing tool means and upright members of the shield means forming on movement of the implement a furrow in the soil longitudinally aligned with the wheel means.

Claim 21

The implement of claim 17 wherein: the arm means comprise an upper arm and a lower arm, first means pivotally connecting the upper arm and lower arm to a midportion of the beam, and second means pivotally mounting the upper arm and lower arm to the section.

Claim 22

The implement of claim 17 including: a second beam located adjacent the opposite end of the section, second arm means pivotally mounting the second beam to the section, and second holding means releasably connecting an end of the second beam to the section, third tool bar means, linkage means connecting the third tool bar means to said second beam, a Plurality of spaced earth working tools mounted on the third tool bar means for working the soil adjacent rows of crops, and row guide assembly means mounted on the third tool bar means for controlling the transverse position of the third tool bar means to locate the earth working tools adjacent the rows of crops, said row guide assembly means having a forward wheel means adapted to follow a longitudinal furrow located between adjacent rows of crops, a rear furrowing tool means longitudinally aligned with the wheel means, and shield means having a pair or rearwardly converging generally upright members located between adjacent rows of crops, one of said members located adjacent one side of said furrowing tool means and the other of said members located adjacent the other side of said furrowing tool means, said furrowing tool means and upright members of the shield means forming on movement of the implement a furrow in the soil longitudinally aligned with the wheel means.

Claim 23

The implement of claim 17 including: pivot means connecting the arm means to a midportion of the beam, whereby the outer end of the beam can be moved adjacent the end of the section and connected thereto with the holding means.

Claim 24

The implement of claim 1 wherein: said shield means include means to adjustably support the upright members whereby the converging relationship between the upright members can be changed.

Claim 25

The implement of claim 1 wherein: said shield means has top members and means to adjustably mount the upright members on the top members whereby the converging relationship between the upright members can be changed.

Claim 26

The implement of claim 22 wherein: the furrowing tool means includes a generally upright standard, said top members being mounted on said standard.