CA2140801A1 - Seed delivery system for a planter - Google Patents
Seed delivery system for a planterInfo
- Publication number
- CA2140801A1 CA2140801A1 CA 2140801 CA2140801A CA2140801A1 CA 2140801 A1 CA2140801 A1 CA 2140801A1 CA 2140801 CA2140801 CA 2140801 CA 2140801 A CA2140801 A CA 2140801A CA 2140801 A1 CA2140801 A1 CA 2140801A1
- Authority
- CA
- Canada
- Prior art keywords
- hose
- spout
- hopper
- boot
- unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Abstract
An agricultural planting machine has a large main seed hopper and a smaller seed hopper on each of the individual row units. Each row unit hopper is fed from the main seed hopper by an air delivery system that includes a flexible hose that is inserted into a tubular inlet spout mounted on the side of the row unit hopper. A flexible tubular boot is clamped to the lower end of each hose and is mountable over the exterior surface of the inlet spout, which is provided with a pair of annular ribs that hold the boot over the connection during normal operation of the machine, while permitting separation of the hose and boot from the spout when a substantial axial pull is applied to the hose.
Description
21~0801 SEED DELIVERY SYSTEM FOR A PLANTER
BACKGROUND OF THE INVENTION
This invention relates to an agricultural planting machine, and more particularly, to such machine having a plurality of row units with individual seed hoppers and a main seed hopper with an air delivery system for delivering seeds from the main seed hopper to the respective row unit hoppers.
Such a planter is described in U.S. patent 5,161,473, which is also assigned to the assignee herein, and a further improvement of the device shown in said U.S. patent is also described in pending application serial number 08/049,890, which is also assigned to the assignee herein.
As described in said patent and pending application, an air delivery system is provided for moving seeds from a central main hopper to the smaller hoppers on the respective planter row unit, the air delivery system including a flexible hose extending from the main hopper to each of the row unit hoppers.
SUMMARY OF THE INVENTION
According to the present invention, an improved connection is provided for connecting the respective seed and air delivery hoses to the row unit hoppers.
An important feature of the invention resides in the fact that the improved connection does not in any way restrict the flow of air and/or seed through the connection. Another feature of the invention resides in the fact that a weather tight connection is provided that does not permit the introduction of undesirable moisture into the unit seed hoppers. Also according to the invention, the improved connection provides a secure connection that will not separate during operation in the field, but which can be readily separated by an operator by simply pulling firmly on the hose when the system that needs to be maintained.
Still another feature of the invention resides in the fact that the connection is very simple and inexpensive to produce.
21~0801 BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic view of the seed delivery system for a planter embodying the invention.
Figure 2 is an enlarged partly sectional side view of one of the unit seed hoppers showing the improved hose connection.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As is well known, a conventional agricultural planter includes a mobile main frame, and a large main seed hopper 10 is mounted on the mainframe for travel therewith across the field. Also mounted on the mainframe are a plurality of individual row units, only one of which is shown in Figure 1 and indicated generally by the numeral 11. As is well known, the row units are essentially the same, and only one unit is described herein. As is conventional, each row unit 11 is provided with a smaller seed hopper 12, and seeds are conveyed from the main hopper 10 to the row unit hoppers 12 by a plurality of flexible hoses 14, only one of which is shown in the drawing.
The air delivery system for conveying the seeds from the main hopper 10 to the row unit hoppers 12 includes a blower 16 connected to an air manifold 18 by an air supply line 20. The manifold 18 has a number of outlets 21, each hose 14 being connected to an outlet 21, the illustrated planter including 10 outlets to supply seeds to a ten row planter, although obviously the system can be modified to supply any number of row units. As is apparent, the seeds in the main hopper 10 move into the manifold 18 and are conveyed by an air stream through the outlets 21 and the hoses 14 to the row units 11.
As is well known, each row unit includes a seed meter 22 that selects seed from the row unit hopper 12 and delivers it to a furrow through a seed delivery tube 24. A hose connecting device indicated in its entirety by the numeral 25 connects the outlet end of each hose 14 to an internal air separation tube 26, which separates the seeds from the air stream inside the hopper 12.
21~0801 The hose connector 25 includes a generally cylindrical tubular spout 30 having a cylindrical body 32 that extends upwardly and outwardly from a side wall of the unit hopper 12.
The connector includes a vertical plate 34 attached to the 5 periphery of the cylindrical body 32 and mounted over an opening in the side wall of the hopper 12 by a plurality of fasteners 36. The lower or inner end 38 of the spout is located inside the hopper and connects to the upper end of the air separating tube 26.
The inner diameter 40 of the outer portion of the spout is substantially the same as the outer diameter of the hose 14, which is inserted into the outer end of the spout and tightly engages the inner diameter of the spout. The inner diameter of the spout inside the hopper adjacent the end 38 is 15 substantially the same as the inner diameter of the tube 14 so as not to restrict the air flow through the connector. The outer or upper end of the spout body 32 is provided with a pair of annular ribs or barbs 42 of conventional construction, such ribs or barbs being frequently used in connecting hoses 20 having a smooth inner diameter. A flexible annular boot 44 is mounted on the end of the hose 14 and has an enlarged flexible lower end that is expandable to tightly engage the barbs 42 when the hose 14 is inserted into the spout body 32. The upper end 48 of the boot 44 has substantially the same 25 diameter as the outer diameter of the hose 14 and a conventional hose clamp 50 tightly secures the boot to the hose.
As is apparent, the hose 14 is simply connected to the hopper 12 by inserting the end of the hose 14 into the 30 interior of the spout 30 while sliding the boot 44 over the barbs 42 on the outside of the spout. The above provides a weather type connection that does not restrict the air flow through the hose connection. The boot holds the hose in the spout during normal operation of the machine, but the boot is 35 sufficiently flexible that a strong axial pull on the hose 14 will permit easy separation of the hose 14 from the spout.
BACKGROUND OF THE INVENTION
This invention relates to an agricultural planting machine, and more particularly, to such machine having a plurality of row units with individual seed hoppers and a main seed hopper with an air delivery system for delivering seeds from the main seed hopper to the respective row unit hoppers.
Such a planter is described in U.S. patent 5,161,473, which is also assigned to the assignee herein, and a further improvement of the device shown in said U.S. patent is also described in pending application serial number 08/049,890, which is also assigned to the assignee herein.
As described in said patent and pending application, an air delivery system is provided for moving seeds from a central main hopper to the smaller hoppers on the respective planter row unit, the air delivery system including a flexible hose extending from the main hopper to each of the row unit hoppers.
SUMMARY OF THE INVENTION
According to the present invention, an improved connection is provided for connecting the respective seed and air delivery hoses to the row unit hoppers.
An important feature of the invention resides in the fact that the improved connection does not in any way restrict the flow of air and/or seed through the connection. Another feature of the invention resides in the fact that a weather tight connection is provided that does not permit the introduction of undesirable moisture into the unit seed hoppers. Also according to the invention, the improved connection provides a secure connection that will not separate during operation in the field, but which can be readily separated by an operator by simply pulling firmly on the hose when the system that needs to be maintained.
Still another feature of the invention resides in the fact that the connection is very simple and inexpensive to produce.
21~0801 BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 is a schematic view of the seed delivery system for a planter embodying the invention.
Figure 2 is an enlarged partly sectional side view of one of the unit seed hoppers showing the improved hose connection.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As is well known, a conventional agricultural planter includes a mobile main frame, and a large main seed hopper 10 is mounted on the mainframe for travel therewith across the field. Also mounted on the mainframe are a plurality of individual row units, only one of which is shown in Figure 1 and indicated generally by the numeral 11. As is well known, the row units are essentially the same, and only one unit is described herein. As is conventional, each row unit 11 is provided with a smaller seed hopper 12, and seeds are conveyed from the main hopper 10 to the row unit hoppers 12 by a plurality of flexible hoses 14, only one of which is shown in the drawing.
The air delivery system for conveying the seeds from the main hopper 10 to the row unit hoppers 12 includes a blower 16 connected to an air manifold 18 by an air supply line 20. The manifold 18 has a number of outlets 21, each hose 14 being connected to an outlet 21, the illustrated planter including 10 outlets to supply seeds to a ten row planter, although obviously the system can be modified to supply any number of row units. As is apparent, the seeds in the main hopper 10 move into the manifold 18 and are conveyed by an air stream through the outlets 21 and the hoses 14 to the row units 11.
As is well known, each row unit includes a seed meter 22 that selects seed from the row unit hopper 12 and delivers it to a furrow through a seed delivery tube 24. A hose connecting device indicated in its entirety by the numeral 25 connects the outlet end of each hose 14 to an internal air separation tube 26, which separates the seeds from the air stream inside the hopper 12.
21~0801 The hose connector 25 includes a generally cylindrical tubular spout 30 having a cylindrical body 32 that extends upwardly and outwardly from a side wall of the unit hopper 12.
The connector includes a vertical plate 34 attached to the 5 periphery of the cylindrical body 32 and mounted over an opening in the side wall of the hopper 12 by a plurality of fasteners 36. The lower or inner end 38 of the spout is located inside the hopper and connects to the upper end of the air separating tube 26.
The inner diameter 40 of the outer portion of the spout is substantially the same as the outer diameter of the hose 14, which is inserted into the outer end of the spout and tightly engages the inner diameter of the spout. The inner diameter of the spout inside the hopper adjacent the end 38 is 15 substantially the same as the inner diameter of the tube 14 so as not to restrict the air flow through the connector. The outer or upper end of the spout body 32 is provided with a pair of annular ribs or barbs 42 of conventional construction, such ribs or barbs being frequently used in connecting hoses 20 having a smooth inner diameter. A flexible annular boot 44 is mounted on the end of the hose 14 and has an enlarged flexible lower end that is expandable to tightly engage the barbs 42 when the hose 14 is inserted into the spout body 32. The upper end 48 of the boot 44 has substantially the same 25 diameter as the outer diameter of the hose 14 and a conventional hose clamp 50 tightly secures the boot to the hose.
As is apparent, the hose 14 is simply connected to the hopper 12 by inserting the end of the hose 14 into the 30 interior of the spout 30 while sliding the boot 44 over the barbs 42 on the outside of the spout. The above provides a weather type connection that does not restrict the air flow through the hose connection. The boot holds the hose in the spout during normal operation of the machine, but the boot is 35 sufficiently flexible that a strong axial pull on the hose 14 will permit easy separation of the hose 14 from the spout.
Claims (5)
1. In a seed planting machine having a main seed hopper and a plurality of planting units each unit being adapted to plant seeds in a row as the machine advances and having a unit hopper, and an air delivery system operative to deliver seeds from the main hopper to the unit hoppers including a plurality of seed conveying hoses respectively extending from the main hopper to the unit hoppers, an improved means for releasably connecting one end of each hose to the unit hopper comprising:
a tubular inlet spout attached to an upper portion of the unit hopper and extending outwardly therefrom in fluid communication with the unit hopper interior, the spout having an inner diameter substantially the same as the outer diameter of the discharge end of the hose, which is insertable into the outer end of the spout, the spout also including at least one external annular rib adjacent its outer end;
a flexible annular boot mounted on the end of the hose and being adapted to slide over and tightly engage the rib when the end of the tube is inserted into the spout; and clamping means connected to the boot for releasably securing the boot to the hose adjacent the discharge end.
a tubular inlet spout attached to an upper portion of the unit hopper and extending outwardly therefrom in fluid communication with the unit hopper interior, the spout having an inner diameter substantially the same as the outer diameter of the discharge end of the hose, which is insertable into the outer end of the spout, the spout also including at least one external annular rib adjacent its outer end;
a flexible annular boot mounted on the end of the hose and being adapted to slide over and tightly engage the rib when the end of the tube is inserted into the spout; and clamping means connected to the boot for releasably securing the boot to the hose adjacent the discharge end.
2. The invention described in claim 1 wherein the inner diameter of the hose is substantially constant throughout its length.
3. The invention described in claim 1 wherein a plurality of axially spaced ribs are arranged on the outer end of the spout.
4. The invention described in claim 1 wherein the boot and hose respectively engage the outer and inner diameters of the outer end of the spout to resist axial separation of the hose from the spout until a substantial axial pulling force is applied to the hose.
5. The invention described in claim 4 wherein the pulling force necessary to separate the hose and boot from the spout is less than the force required to separate the boot from the hose.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US22006494A | 1994-03-30 | 1994-03-30 | |
| US220,064 | 1994-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2140801A1 true CA2140801A1 (en) | 1995-10-01 |
Family
ID=22821901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2140801 Abandoned CA2140801A1 (en) | 1994-03-30 | 1995-01-23 | Seed delivery system for a planter |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR9501224A (en) |
| CA (1) | CA2140801A1 (en) |
-
1995
- 1995-01-23 CA CA 2140801 patent/CA2140801A1/en not_active Abandoned
- 1995-03-27 BR BR9501224A patent/BR9501224A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR9501224A (en) | 1995-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |