AU641530B2

AU641530B2 - An improved sowing boot

Info

Publication number: AU641530B2
Application number: AU81403/91A
Authority: AU
Inventors: Gregory R. Haydon
Original assignee: JOHN DEERE Ltd
Current assignee: JOHN DEERE Ltd
Priority date: 1990-07-27
Filing date: 1991-07-26
Publication date: 1993-09-23
Anticipated expiration: 2003-06-23
Also published as: AU8140391A

Description

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AUSTRALIA

Patents Act 1990 COMPLETE SPECIFICATION PATENT OF ADDITION TO BE COMPLETED BY APPLICANT Name of Applicant; Actual Inventor Address for Service: JOHN DEERE LIMITED GREGORY R HAYDON WRAY ASSOCIATES, Primary Industry House, Terrace, Perth, Western Australia, 6000.

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Attorney code: WR Invention Title: "Al' 1MPROVED SOWING BOOT" Details of Associated Provisional Application: No: P14 PK1448 The f ollowing statement is a full description of thisinvention, including the best method of performing it known to

US:-

-1 2 THIS INVENTION relates to sowing implements and in particular relates to a sowing boot.

Australian Patent No. 553854 is directed to a sowing boot which facilitates the sowing of the seed in a band rather than in a row which had been the conventional practice at that point in time.

The present invention relates to an improvement to the sowiug boot of the general form defined in claim in Australian Patent No. 553854 which defines a sowing boot for a seeder where the sowing boot is intended to be mounted behind a cultivating tool such that its outlet is located lowermost behind the tine and where said sowing boot is of a substantially arcuate configuration about an axis or axes which when the sowing boot is in position is Soo.

0!04 transverse to the direction of travel whereby when in position the rear wall curves forwardly to intercept the flow of material therein on movement of the material to the outlet, said rear wall having an enlarged transverse dimension in the region of the outlet and a central upwardly extending rib extending rearwardly from said outlet. Throughout the specification the term "sowing boot" shall be taken as being a sowing boot of the form defined in the previous sentence.

A sowing boot for a seeder wherein said sowing boot is intended to be mounted behind a cultivating tool such that the outlet is located lowermost behind the tine wherein said sowing boot is of a substantially arcuate configuration about an axis or axes which when the sowing boot is in position is transverse to the direction of travel and whereby when in position the rear wall curves forwardly to intercept material flowing thereinto the outlet, said rear wall having an enlarged transverse 3 dimension in the region of the outlet and a central upwardly extending rib extending rearwardly from said outlet, the mouth of the sowing boot supporting a member having the configuration of a channel with ar inverted V-shaped profile and loriated such that its axis is parallel to the direction of travel to define two flow path ways to each side of the sowing boot.

The invention will be more fully understood in the light of the following description of one specific embodiment. The description is made with reference to the accompanying drawing which is a schematic exploded view of the sowing assembly according to the embodiment.

The embodiment is directed to an improvement to a sowing boot 11 of the form described above. The sowing boot is of 0*.

a tubular configuration and the central axis of the tube is curved about axis substantially transverse to the intended direction of travel of the sowing boot and on the implement such that the lower end 12 of the sowing boot 11 is located forward of the upper end 13 of the sowing boot. The upper end of sowing boot 13 is adapted to be connected to a delivery hose 14 by a suitable claim 15 which is fixed to a too. sowing tine 16. The lower end 12 of the sowing boot 11 is supported form the tine 16 by the attachment which comprises a shield 17 which serves to surround the leading edges of the lower portion of the sowing boot to protect it from abrasion. The shield 17 is fixed to the lower end of the tine 16 together with the cultivating point (not shown) by a bolt or similar fixing means which passes through an aperture 21 in the shield.

The improvement comprises a member having an inverted V shaped profile which is formed of sheet metal and has a length corresponding substantially to the spacing between 4 the front and rear lower edges of the sowing boot ii. The forward face 19 of the member is formed with an aperture which is aligned with the fixing aperture 21 in the shield 17 such that the member can be fixed to the tine by the same fixing bolt which retains the shield and cultivating point to the tine 16. The aperture 20 is located such that when member 18 is mounted to the shield 17 it lies directly below the outlet 12 of the sowing boot 11 and serves to define two diverging flow paths for the seed passing from the seed sowing boot.

As a result of the embodiment the member provides a means of producing two bands of seed in the ground which are sufficiently spaced from each other to facilitate a greater crop density upon germination.

0 0 It should be appreciated that the scope of the present invention need not be limited to the particular scope of the embodiment described above.

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Claims

1. A sowing boot f a seeder wherein said sowing boot is intended to be mounted behind a cultivating tool such that the outlet is located lowermost behind the tine wherein said sowing boot is of a substantially arcuate configuration about an axis or axes which when the sowing boot is in position is transverse to the direction of travel and whereby when in position the rear wall curves forwardly to intercept material flowing thereinto the outlet, said rear wall having an enlarged transverse dimension in the region of the ouclet and a central upwardly extending rib extending rearwardly from said outlet, the mouth of the sowing boot supporting a member having the configuration of a channel with an inverted V-shaped profile and located such that its axis is parallel to the direction of travel to define two flow path ways to each side of the sowing boot.

2. The sowing boot as claimed at claim 1 wherein the length of the member corresponds substantially to the spacing between the front and rear edges of the sowing boot.

3. A sowing boot as claimed at claim 1 or 2 wherein the member is associated with a shield which surrounds and supports the lower portion of the sowing boot, said shield being adapted at its forward side to be attached to a cultivating tool by an attachment means.

4. A sowing boot as claimed at claim 3 wherein the member is adapted to be attached to the shield by said attachment means. Tvr^ 6 b. sowing boot substantially as herein described with reference to the accompanying drawings. DATED this SECOND day of JULY 1993. JOHN DEERE LIMITED Applicant. Wray Associates Perth, Western Australia, Patent Attorneys for the Applicant. 7 ABSTRACT A sowing boot for a seeder wherein said sowing boot (11) is intended to be mounted behind a cultivating tool such that the outlet is located lowermost behind the tine wherein said sowing boot (11) is of a substantially arcuate configuration about an axis or axes which when the sowing boot is in position is transverse to the direction of travel and whereby when in position the rear wall curves forwardly to intercept material flowing thereinto the outlet, said rear wall having an enlarged transverse dimension in the region of the outlet and a central upwardly extending rib extending rearwardly from said outlet, the mouth (12) of the sowing boot supporting a member (18) having the configuration of a channel with an inverted V-shaped profile and located such that its axis is parallel to the direction of travel to define two flow path ways to each side of the sowing boot. 0 0e 00 o 6 *i 00 0 0 0* 0