Plant transplanter

• US 5,159,887 A
• Filed: 11/13/1990
• Issued: 11/03/1992
• Est. Priority Date: 11/13/1990
• Status: Expired due to Fees

• Current Assignee: Howard B. Poll
• Original Assignee: Howard B. Poll
• Inventors: Poll, Howard B.
• Primary Examiner(s): Taylor, Dennis L.
• Assistant Examiner(s): WARNICK IV, SPENCER K
• Application Number:
  US07/613,227
• Time in Patent Office: 721 Days
• Field of Search: 111/109, 111/104, 111/111, 111/117, 172/747, 172/519, 172/538
• US Class Current: 111/109
• CPC Class Codes: A01C 11/02 for seedlings

Abstract

A transplanter is disclosed which provides uniform planting without damaging plants. The transplanter includes a rotating cup assembly having two-piece clam shell cups, one of which opens by lateral movement by the cup halves of the cup. The transplanter also includes a chute and kick plate which move together to position the plants received from the rotating cup assembly in the planting position. A unique means is provided for opening the cup halves at a position immediately above the chute to minimize any hang-up of the plants. A polymer furrow opening shoe is also disclosed which includes a protective member which prevents soil damage to the polymeric surface. Also novel packing wheels are disclosed.

Claims

1. A plant transplanter for mechanically planting seedlings comprising:

a furrow opening shoe for forming a furrow;

a cup assembly comprising a plurality of cups for receiving, holding and dispensing seedlings, said cups sequentially dispensing seedlings to be planted in said furrow;

each of said cups including first and second cup halves pivoted around a generally vertical axis to open and close, said cups pivoting laterally and horizontally away from one another to open and pivot laterally and horizontally toward one another to close;

whereby said cup halves of each of said cups form a cup including a bottom to support the roots of said seedlings and sides to receive and hold a seedling when closed and said cup halves are spaced to dispense seedlings when open;

an ejector having a kick plate and a chute which move together in timed sequence with the dispensing of seedlings from said cup assembly to eject seedlings dispensed by and received from said cup assembly into said furrow formed by said furrow opening shoe;

said chute of said ejector includes a top portion providing a funnel for receiving the seedlings, said chute having a cut-a-way portion extending downwardly from said top portion and into said shoe and merging with said kick plate; and

said chute and kick plate being movable in and out of said shoe in substantially the same timed sequence as the timed sequence of the dispensing of the seedlings by said cup assembly.

2. The plant transplanter as defined in claim 1, wherein said first cup half of each said cup includes a roller which is positioned against a cam for rotation around said cam as said cup assembly rotates, said cam including a detent which receives said rollers whereby a respective cup is opened when a respective roller is received in said detent.

3. The plant transplanter as defined in claim 2, further including a spring coupled to said second cup half of each cup to bias said roller on said first cup half against said cam.

4. The plant transplanter as defined in claim 3, further including a pair of gears for each cup of said cup assembly, said gears including teeth, each said cup half coupled to a respective gear, and the teeth of the gears coupled to the respective halves of each cup engaging one another, whereby said cup halves of each said cup pivot at the same rate.

5. The plant transplanter as defined in claim 4, wherein said cup halves pivot at substantially the same rate as said cup assembly when the cups open to discharge a plant, and wherein one cup half of each of said cups moves the same direction as the cup assembly when the respective cup opens, and the other cup half of each of said cups moves in the opposite direction of said cup assembly when the respective cup is opened, whereby said other cup half of each of said cups remains in substantially the same position as said respective cup opens whereby a plant in said respective cup is discharged into said ejector when said respective cup opens.

6. The plant transplanter as defined in claim 1 wherein said chute is attached to said kick plate by a fastener and said chute includes no moving parts.

7. The plant transplanter of claim 1 for mechanically planting seedlings comprising:

each of said cups for receiving, holding and dispensing a seedling to be planted in said furrow includes an element for engaging an outer perimeter of a cam while receiving, holding and dispensing said seedling, said cam including a recess in the perimeter thereof, and said cups dispensing said seedling held in said cups when said element engages said recess in said cam.

8. A plant transplanter for mechanically planting seedlings comprising:

a furrow opening shoe for forming a furrow;

a cup assembly comprising a plurality of cups for receiving, holding and sequentially dispensing seedlings in timed sequence to be planted in said furrow;

each of said cups including first and second cup halves pivoted around a generally vertical axis to open and close, said cups pivoting laterally and horizontally away from one another to open and pivot laterally and horizontally toward one another to close;

whereby said cup halves of each of said cups form a cup including a bottom to support the roots of said seedlings and sides to receive and hold a seedling when closed and said cup halves are spaced to dispense seedlings when open;

an ejector having a kick plate and a chute which move together in timed sequence with the dispensing of seedlings from said cup assembly to eject plant seedlings dispensed by and received from said cup assembly into said furrow formed by said furrow opening shoe, said ejector pivotally mounted;

said chute of said ejector includes a top portion providing a funnel for receiving the seedlings, said chute having a cut-a-way portion extending downwardly from said top portion and into said shoe and merging with said kick plate;

said chute and kick plate being movable in and out of said shoe in substantially the same timed sequence as the timed sequence of the dispensing of the seedlings by said cup assembly; and

cam means, said cam means operatively connected to said ejector for causing said ejector to be pivoted in and out of said shoe.

9. A plant transplanter for mechanically planting seedlings comprising:

a furrow opening shoe for forming a furrow;

a cup assembly comprising a plurality of cups for receiving, holding and dispensing seedlings, said cups sequentially dispensing seedings to be planted in said furrow;

an ejector having a kick plate and a chute which move together in timed sequence with the dispensing of seedlings from said cup assembly to eject seedlings dispensed by and received from said cup assembly into said furrow formed by said furrow opening shoe;

said chute of said ejector includes a top portion providing a funnel for receiving the seedling, said chute having a cut-a-way portion extending downwardly from said top portion and into said shoe and merging with said kick plate;

said chute and kick plate being movable in and out of said shoe in substantially the same timed sequence as the timed sequence of the dispensing of the seedlings by said cup assembly; and

said furrow opening shoe including a polymer outer layer which does not accumulate dirt thereon, said polymer outer layer carried by said shoe and including an outer surface, said furrow opening shoe further including a protecting shoulder adjacent said polymer outer layer which projects at least to the outer surface of said polymer layer along a bottom of the shoe whereby said projecting shoulder prevents soil or debris from separating the outer layer form the shoe during furrowing.

10. The plant transplanter as defined in claim 9, wherein said furrow opening shoe includes a bottom having slots therein for receiving said polymer outer layer, said slots formed between a metal structure of said shoe over which said polymer layers are positioned, and outer lips of said bottom.

11. The plant transplanter as defined in claim 10, wherein said polymer outer layer consists of high molecular weight plastic, and said bottom comprises a channel iron.

12. A plant transplanter for mechanically planting seedlings comprising:

a furrow opening shoe for forming a furrow;

a cup assembly comprising a plurality of cups for receiving, holding and dispensing seedlings, said cups sequentially dispensing seedings to be planted in said furrow;

an ejector having a kick plate and a chute which move together in timed sequence with the dispensing of seedlings from said cup assembly to eject seedlings dispensed by and received from said cup assembly into said furrow formed by said furrow opening shoe;

said chute of said ejector includes a top portion providing a funnel for receiving the seedlings, said chute having a cut-a-way portion extending downwardly from said top portion and into said shoe and merging with said kick plate;

said chute and kick plate being movable in and out of said shoe in substantially the same timed sequence as the timed sequence of the dispensing of the seedlings by said cup assembly; and

wheels positioned behind and on each side of the furrow opening shoe for packing soil around seedlings placed in said furrow by said ejector, said wheels having zero pressure openings in a rubber-like outer surface for permitting the escape of air from inside the tire and a flared outside edge in said rubber-like outer layer whereby said wheels push soil toward said furrow.

13. A plant transplanter for mechanically planting seedlings comprising:

a furrow opening shoe for forming a furrow;

a cup assembly comprising a plurality of cups for receiving, holding and sequentially dispensing seedlings in a timed sequence to be planted in said furrow wherein each of said cups is defined by two respective cup halves, and wherein said cup halves of each cup pivot around a substantially vertical axis to open and close, said cup halves pivoting laterally and horizontally away from one another to open and pivoting laterally and horizontally toward one another to close;

an ejector having a kick plate and a chute which move together in timed sequence to eject seedlings dispensed by and received from said cup assembly into said furrow formed by said furrow opening shoe;

said chute of said ejector includes a top portion providing a funnel for receiving the seedlings, said chute having a cut-a-way portion extending downwardly from said top portion and into said shoe and merging with said kick plate; and

said chute and kick plate being movable in and out of said shoe in substantially the same timed sequence with as the timed sequence of the dispensing of the seedlings by said cup assembly.

14. The plant transplanter as defined in claim 13, wherein a first cup half of each said cup includes a roller which is positioned against a cam for rotation around said cam as said cup assembly rotates, said cam including a portion which causes a respective roller at a rotational position thereof to open a respective cup.

15. A cup assembly for a mechanical plant transplanter for planting seedlings, said assembly including a plurality of cups which rotate for receiving and holding seedlings to be discharged for planting in a furrow, each of said cups comprising a first and second cup half;

and

wherein said first and second cup halves of each cup pivot around a generally vertical axis to open and close, said cups pivoting laterally and horizontally away from one another to open and pivot laterally and horizontally toward one another to close;

whereby said cup halves of each of said cups form a cup including a bottom to support the roots of said seedlings and sides to receive and hold a seedling when closed and said cup halves are spaced to dispense seedlings when open.

16. A cup assembly for a mechanical plant transplanter for planting seedlings, said assembly including a plurality of cups which rotate for receiving and holding seedlings to be discharged for planting in a furrow, each of said cups comprising a first and second cup half;

wherein said first and second cup halves of each cup pivot around a generally vertical axis to open and close, said cups pivoting laterally and horizontally away from one another to open and pivot laterally and horizontally toward one another to close; and

wherein said assembly includes a cam and said first cup half of each said cup includes a roller which is positioned against said cam of said transplanter for rotation around said cam as said cup assembly rotates, wherein said cam includes a portion which causes a respective roller to open a respective cup of said assembly.

17. A cup assembly for a mechanical plant transplanter for planting seedlings, said assembly including a plurality of cups which rotate for receiving and holding seedlings to be discharged for planting in a furrow, each of said cups comprising a first and second cup half;

wherein said first and second cup halves of each cup pivot around a generally vertical axis to open and close, said cups pivoting laterally and horizontally away from one another to open and pivot laterally and horizontally toward one another to close; and

wherein said assembly includes a cam and said first cup half of each said cup includes a roller which is positioned against said cam of said transplanter for rotation around said cam as said cup assembly rotates, wherein said cam includes a detent which receives a respective roller for opening a respective cup of said assembly.

18. The cup assembly as defined in claim 17, further including a spring coupled to said second cup half of each cup to bias said roller on said first cup half against said cam.

19. The cup assembly as defined in claim 18, further including a pair of gears for each cup of said cup assembly, said gears including teeth, each said cup half coupled to a respective gear of a respective pair of gears, and the teeth of each pair of gears interlocked, whereby said cup halves of each said cup pivot at the same rate.

20. The plant transplanter as defined in claim 19, wherein said cup halves pivot at substantially the same rate as said cup assembly when the cups open to discharge a seedling, and wherein one cup half of each of said cups moves in the same direction as the cup assembly when the respective cup opens, and the other cup half of each of said cups moves in the opposite direction of said cup assembly when the respective cup is opened, whereby said other of the cup half of each of said cups remains in substantially the same position as said respective cup opens whereby a plant in said respective cup is discharged into said ejector when said respective cup opens.

21. A plant transplanter for mechanically planting seedlings comprising:

a furrow opening shoe for forming a furrow;

means for receiving, holding and dispensing seedlings to be planted in said furrow, said means including at least one cup rotating around a first axis, said at least one cup including two cup sections which form said cup when said cup sections are in a closed position, said cup sections pivoting around a second axis to move between an open position and said closed position, said second axis being substantially parallel to said first axis; and

an ejector having a kick plate and a chute which move together to eject plants dispensed by and received from said means into said furrow formed by said furrow opening shoe.

22. The plant transplanter of claim 21 in which the said chute of said ejector includes a top portion providing a funnel for receiving the seedlings, said chute having a cut-a-way portion extending downwardly from said top portion and into said shoe and merging with said kick plate;

said chute and kick plate being movable in and out of said shoe in timed sequence with the dispensing of the seedlings by said cup assembly.

23. The plant transplanter of claim 22 in which the ejector is pivotally mounted;

and

cam means operatively connected to said ejector for causing said ejector to be pivoted in and out of said shoe.