CA2206883A1 - Cap for split press wheel of agricultural vehicle - Google Patents
Cap for split press wheel of agricultural vehicleInfo
- Publication number
- CA2206883A1 CA2206883A1 CA 2206883 CA2206883A CA2206883A1 CA 2206883 A1 CA2206883 A1 CA 2206883A1 CA 2206883 CA2206883 CA 2206883 CA 2206883 A CA2206883 A CA 2206883A CA 2206883 A1 CA2206883 A1 CA 2206883A1
- Authority
- CA
- Canada
- Prior art keywords
- cap
- wheel
- fastener
- split
- assembled
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B73/00—Means or arrangements to facilitate transportation of agricultural machines or implements, e.g. folding frames to reduce overall width
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B29/00—Rollers
- A01B29/04—Rollers with non-smooth surface formed of rotatably-mounted rings or discs or with projections or ribs on the roller body; Land packers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
- A01C5/068—Furrow packing devices, e.g. press wheels
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transplanting Machines (AREA)
Abstract
Press wheels are used for rolling over and packing the soil of seed furrows. Split press wheels have an axial gap, and are used when the crop is of the kind that fares best when the soil actually over the seeds is loose. The cap is in two components, which together encircle the split press wheel. When in place, the cap closes thegap, and the split press wheel then functions like a one-piece press wheel. The two components are releasable, being fastened together by bolts. The bolts lie in deformed recesses in the cap, encroaching into the gap, internally of the cap. The act of tightening the bolts stretches the cap over the wheel, whereby the cap grips the wheel, and no mechanical connection to the wheel is required.
Description
CA 02206883 l997-06-02 Title: CAP FOR SPLIT PRESS WHEEL OF AGRICULTURAL VEHICLE
4 This invention relates to agricultural vehicles, of the kind in which a press wheel is rolled over the ground, to condition the ground for promoting the emergence of 6 seedlings and shoots.
g BACKGROUND TO THE INVENTION
Press wheels are used generally in agricultural machines, for conditioning the soil of 12 furrows into which a line of seeds has been placed. Some crop seeds fare best 13 when the soil above the seeds is packed fairly tightly, and in that case it is 14 customary to pack the soil of the seeded furrow by rolling the vehicle wheel thereover.
17 Other crop seeds fare best when the soil over the seeds is quite loose. In that case, 18 it is conventional to provide split press wheels on the vehicle. These split press 19 wheels take the form of two wheel-halves or wheel-rim-portions fixed together side by side, with a gap of, say, 2.5 or 3 cm therebetween. The wheel-halves pack the21 soil down, in the margins to the right and left of the seeded furrow, but the soil in 22 between, i.e the soil actually over the seeds, is not rolled, and is not packed.
GENERAL FEATURES OF THE INVENTION
27 The invention lies in providing a set of caps for a vehicle with split press wheels, 28 whereby the caps can be easily and quickly assembled onto the split wheels.
When the caps are present, the press wheels have a single wide packing surface, 31 for use with those crops in which the seedlings fare best when the soil above the 32 planted seeds is packed. When the caps are not present, the press wheel is split, 33 and the soil is packed only on the left and right margins of the seeded furrow, for 34 use with those crops in which the seedlings fare best when the soil above the CA 02206883 l997-06-02 planted seeds is loose.
3 In a preferred form of the invention, the farmer can readily bolt the caps onto the 4 split press wheels, and can readily take the caps off; therefore, the same wheels on the same vehicle can be used for either type of crop.
7 In a preferred form of the invention, the apparatus includes a fastener, for fastening 8 the cap components together. The fastener is located, as to its axial location, g centrally within the cap, and in the gap between the two wheel-halves of the split-press-wheel. The apparatus includes an operable means for hoop-stretching the assembled cap tightly over the rim of the split-press-wheel, which is effective, when 12 operated, to grip the assembled cap tightly to the wheel, and to hold same to the 13 wheel by frictional engagement. Preferably, the said hoop-stretching means is 14 provided by the means for fastening the cap components together. The fastener is releasable, whereby, when the fastener is released, the caps can be removed from16 the split-press-wheel.
18 It is recognised that the space between the rims of the split press wheel is available 19 to accommodate the fasteners of the components of the cap.
24 By way of further explanation of the invention, exemplary embodiments of theinvention will now be described with reference to the accompanying drawings, in 26 which:
28 Fig 1 is a front elevation of a split press wheel for an ayricultural vehicle;
29 Figs 1 a and 1 b are corresponding views of the two components of a two-component cap for the split press wheel of Fig 1, shown in position ready for 31 assembling to the split press wheel;
32 Fig 2 is a pictorial view corresponding to Fig 1;
33 Figs 2a,2b are pictorial views corresponding to Figs 1 a, 1 b;
34 Fig 3 is a view corresponding to Fig 1 of the split press wheel with the cap CA 02206883 l997-06-02 assembled thereto;
4 This invention relates to agricultural vehicles, of the kind in which a press wheel is rolled over the ground, to condition the ground for promoting the emergence of 6 seedlings and shoots.
g BACKGROUND TO THE INVENTION
Press wheels are used generally in agricultural machines, for conditioning the soil of 12 furrows into which a line of seeds has been placed. Some crop seeds fare best 13 when the soil above the seeds is packed fairly tightly, and in that case it is 14 customary to pack the soil of the seeded furrow by rolling the vehicle wheel thereover.
17 Other crop seeds fare best when the soil over the seeds is quite loose. In that case, 18 it is conventional to provide split press wheels on the vehicle. These split press 19 wheels take the form of two wheel-halves or wheel-rim-portions fixed together side by side, with a gap of, say, 2.5 or 3 cm therebetween. The wheel-halves pack the21 soil down, in the margins to the right and left of the seeded furrow, but the soil in 22 between, i.e the soil actually over the seeds, is not rolled, and is not packed.
GENERAL FEATURES OF THE INVENTION
27 The invention lies in providing a set of caps for a vehicle with split press wheels, 28 whereby the caps can be easily and quickly assembled onto the split wheels.
When the caps are present, the press wheels have a single wide packing surface, 31 for use with those crops in which the seedlings fare best when the soil above the 32 planted seeds is packed. When the caps are not present, the press wheel is split, 33 and the soil is packed only on the left and right margins of the seeded furrow, for 34 use with those crops in which the seedlings fare best when the soil above the CA 02206883 l997-06-02 planted seeds is loose.
3 In a preferred form of the invention, the farmer can readily bolt the caps onto the 4 split press wheels, and can readily take the caps off; therefore, the same wheels on the same vehicle can be used for either type of crop.
7 In a preferred form of the invention, the apparatus includes a fastener, for fastening 8 the cap components together. The fastener is located, as to its axial location, g centrally within the cap, and in the gap between the two wheel-halves of the split-press-wheel. The apparatus includes an operable means for hoop-stretching the assembled cap tightly over the rim of the split-press-wheel, which is effective, when 12 operated, to grip the assembled cap tightly to the wheel, and to hold same to the 13 wheel by frictional engagement. Preferably, the said hoop-stretching means is 14 provided by the means for fastening the cap components together. The fastener is releasable, whereby, when the fastener is released, the caps can be removed from16 the split-press-wheel.
18 It is recognised that the space between the rims of the split press wheel is available 19 to accommodate the fasteners of the components of the cap.
24 By way of further explanation of the invention, exemplary embodiments of theinvention will now be described with reference to the accompanying drawings, in 26 which:
28 Fig 1 is a front elevation of a split press wheel for an ayricultural vehicle;
29 Figs 1 a and 1 b are corresponding views of the two components of a two-component cap for the split press wheel of Fig 1, shown in position ready for 31 assembling to the split press wheel;
32 Fig 2 is a pictorial view corresponding to Fig 1;
33 Figs 2a,2b are pictorial views corresponding to Figs 1 a, 1 b;
34 Fig 3 is a view corresponding to Fig 1 of the split press wheel with the cap CA 02206883 l997-06-02 assembled thereto;
2 Figs 3a,3b are side and top elevations corresponding to Fig 3;
3 Fig 4 is a view corresponding to a portion of Fig 3a, showing a detail of the
4 construction of the cap;
Fig 4a is a front elevation of the detail of Fig 4;
6 Fig 5 is a view corresponding to another portion of Fig 3a, showing another detail of 7 the construction of the cap;
8 Fig 6 is a front elevation of a component of another cap;
g Figs 6a,6b are side and top elevations corresponding to Fig 4.
The apparatuses shown in the accompanying drawings and described below are 12 examples which embody the invention. It should be noted that the scope of the 13 invention is defined by the accompanying claims, and not necessarily by specific 14 features of exemplary embodiments.
16 The spilt press wheel 20 shown in Figs 1 and 2 is one of several similar ground-17 engaging press wheels on a seed planter vehicle. The press wheels are arranged to 18 run along the seed furrows, as part of the seed planting operation.
The split press wheel 20 comprises left and right wheel-halves 23,24. Each wheel-21 half has a respective rim 25,26. The rims have a diameter of about 55 cm, and the 22 gap 27 between the rims is about 28 mm. For certain crop seeds, it is appropriate 23 for the soil directly over the seeds to be loose, in which case the split press wheel 24 20 is used in the condition as shown in Fig 1.
26 For other crop seeds, it is appropriate for the soil above the seeds to be packed 27 more tightly, and then caps are placed over the split press wheels. In respect of 28 each split press wheel, the cap 28 completely encircles the wheel, and bridges the 29 gap 27 between the two wheel halves 23,24. The caps are secured to the wheels in a manner that is quick and easy as regards assembly of the caps to the wheels, 31 and as regards disassembly from the wheels.
33 The components of the cap 28 are shown in Figs 1a,1b,2a,2b. The split press 34 wheel 20 with the cap 28 assembled thereto is shown in Figs 3,3a,3b. The CA 02206883 l997-06-02 components of the cap 28 are shown assembled together (but without the wheel) in 2 Figs 4,4a,5.
4 The first cap component 29 (Figs 1 a,2a) has a lug 30, protruding inwards. The lug iS welded to the curved shell 32 of the first component 29. The second cap 6 component 34 (Figs 1 b, 2b) has a tab 35, which is welded to the inside of the 7 curved shell 36 of the second component 34. When assembled, the lug 30 is 8 received in an aperture 30a in the tab 35 (Figs 4,4a).
At its other end, the shell 32 of the first cap component 29 is partially deformed inwards, at 37, and a spacer 38 is welded into the recess thereby created. The 12 second cap component 34 is provided with a nut 39, which is welded into position 13 on the shell 36 of the second component such that a bolt 40 passing through the 14 spacer 38 engages with, and can be threaded into, the nut 39. A guide 42 keeps the nut 39 and the spacer 38 aligned for easy thread-engagement of the bolt 40.
17 Figs 6,6a,6b are three views of another type of cap component. In this case, the 18 two components 45 of the cap are identical. A plate 46 is welded at each end of 19 the shell 47. The plate 46 follows the contour of the deformed-inwards recess 48 in the shell 47. The plate 46 has a hole for receiving a fastening bolt.
22 In both cases, the shells are provided with inwards-protruding tabs 49. These tabs 23 are dimensioned to fit into the gap 27 between the two rims 25,26, and to thereby 24 locate the caps correctly in the axial sense relative to the wheels.
26 The caps are not fixed mechanically to the wheel-halves, other than by friction.
27 When the components of the cap are assembled around the press wheel, and the 28 bolts are tightened, the cap is subjected to a hoop tension, whereby the cap grips 29 the wheel. When the cap is tightened against the rims, the length of the metal-to-metal engagement is considerable; therefore, only a light hoop force is needed to 31 lock the caps to the wheels very tightly and effectively.
33 Nothing need be done to the structure of the split press wheel 20 to prepare the 34 wheel for the caps to be assembled thereto. The caps are simply tightened around CA 02206883 l997-06-02 the circumference. of the wheel.
3 It should be noted that the task of assembling the caps to the split press wheels is 4 very simple. Just one or two bolts need be assembled, per cap. The components are light in weight; are easy to handle; are self-locating on the wheels (by virtue of 6 the tabs 49); and are virtually impossible to assemble in an incorrect manner.
7 Assembly takes just a few seconds, per cap.
g Disassembly of the caps is just as easy. When the caps are removed, the components may be stacked for compact storage.
12 The designer should see to it that the circumference of the cap is a little less than 13 the circumference of the wheel, to ensure the cap components are stretched around 14 the wheel before the cap components can bottom together. On the other hand, the permitted amount of stretch, i.e the difference between the circumference of the16 cap and the circumference of the rims, should be small enough that if the caps are 17 assembled by a person who is rather clumsy or casual, the caps cannot be distorted 18 by over-tightening the bolts. Thus, the designer should arrange that the cap 19 components will bottom together after just a small amount of stretching over the wheel.
22 Of course, it is not suggested that it is absolutely impossible for the components to 23 be mis-assembled, or damaged by abuse; rather, it is suggested that the design of 24 the components is such that, if the caps are assembled to, and taken off, the split press wheels with the reasonable skill and care of the kind commonly encountered26 in farm machinery users, the caps will always fit correctly, and will have a long 27 service life.
29 The compound-curved shape of the components makes the caps rigid and strong, even though the caps may be of light-gauge metal.
32 The distorted areas of the caps, where the bolts are assembled, of course means 33 that the soil is not rolled quite evenly. However, this unevenness is small enough to 34 be immaterial. It is recognised that, even though the cap is recessed in the regions near the fasteners, and therefore the capped wheel is not of a constant radius, that 2 does not matter in a press wheel, which rolls over soil (whereas the bumps caused 3 by the recesses of course would matter in a road wheel, for example).
Fig 4a is a front elevation of the detail of Fig 4;
6 Fig 5 is a view corresponding to another portion of Fig 3a, showing another detail of 7 the construction of the cap;
8 Fig 6 is a front elevation of a component of another cap;
g Figs 6a,6b are side and top elevations corresponding to Fig 4.
The apparatuses shown in the accompanying drawings and described below are 12 examples which embody the invention. It should be noted that the scope of the 13 invention is defined by the accompanying claims, and not necessarily by specific 14 features of exemplary embodiments.
16 The spilt press wheel 20 shown in Figs 1 and 2 is one of several similar ground-17 engaging press wheels on a seed planter vehicle. The press wheels are arranged to 18 run along the seed furrows, as part of the seed planting operation.
The split press wheel 20 comprises left and right wheel-halves 23,24. Each wheel-21 half has a respective rim 25,26. The rims have a diameter of about 55 cm, and the 22 gap 27 between the rims is about 28 mm. For certain crop seeds, it is appropriate 23 for the soil directly over the seeds to be loose, in which case the split press wheel 24 20 is used in the condition as shown in Fig 1.
26 For other crop seeds, it is appropriate for the soil above the seeds to be packed 27 more tightly, and then caps are placed over the split press wheels. In respect of 28 each split press wheel, the cap 28 completely encircles the wheel, and bridges the 29 gap 27 between the two wheel halves 23,24. The caps are secured to the wheels in a manner that is quick and easy as regards assembly of the caps to the wheels, 31 and as regards disassembly from the wheels.
33 The components of the cap 28 are shown in Figs 1a,1b,2a,2b. The split press 34 wheel 20 with the cap 28 assembled thereto is shown in Figs 3,3a,3b. The CA 02206883 l997-06-02 components of the cap 28 are shown assembled together (but without the wheel) in 2 Figs 4,4a,5.
4 The first cap component 29 (Figs 1 a,2a) has a lug 30, protruding inwards. The lug iS welded to the curved shell 32 of the first component 29. The second cap 6 component 34 (Figs 1 b, 2b) has a tab 35, which is welded to the inside of the 7 curved shell 36 of the second component 34. When assembled, the lug 30 is 8 received in an aperture 30a in the tab 35 (Figs 4,4a).
At its other end, the shell 32 of the first cap component 29 is partially deformed inwards, at 37, and a spacer 38 is welded into the recess thereby created. The 12 second cap component 34 is provided with a nut 39, which is welded into position 13 on the shell 36 of the second component such that a bolt 40 passing through the 14 spacer 38 engages with, and can be threaded into, the nut 39. A guide 42 keeps the nut 39 and the spacer 38 aligned for easy thread-engagement of the bolt 40.
17 Figs 6,6a,6b are three views of another type of cap component. In this case, the 18 two components 45 of the cap are identical. A plate 46 is welded at each end of 19 the shell 47. The plate 46 follows the contour of the deformed-inwards recess 48 in the shell 47. The plate 46 has a hole for receiving a fastening bolt.
22 In both cases, the shells are provided with inwards-protruding tabs 49. These tabs 23 are dimensioned to fit into the gap 27 between the two rims 25,26, and to thereby 24 locate the caps correctly in the axial sense relative to the wheels.
26 The caps are not fixed mechanically to the wheel-halves, other than by friction.
27 When the components of the cap are assembled around the press wheel, and the 28 bolts are tightened, the cap is subjected to a hoop tension, whereby the cap grips 29 the wheel. When the cap is tightened against the rims, the length of the metal-to-metal engagement is considerable; therefore, only a light hoop force is needed to 31 lock the caps to the wheels very tightly and effectively.
33 Nothing need be done to the structure of the split press wheel 20 to prepare the 34 wheel for the caps to be assembled thereto. The caps are simply tightened around CA 02206883 l997-06-02 the circumference. of the wheel.
3 It should be noted that the task of assembling the caps to the split press wheels is 4 very simple. Just one or two bolts need be assembled, per cap. The components are light in weight; are easy to handle; are self-locating on the wheels (by virtue of 6 the tabs 49); and are virtually impossible to assemble in an incorrect manner.
7 Assembly takes just a few seconds, per cap.
g Disassembly of the caps is just as easy. When the caps are removed, the components may be stacked for compact storage.
12 The designer should see to it that the circumference of the cap is a little less than 13 the circumference of the wheel, to ensure the cap components are stretched around 14 the wheel before the cap components can bottom together. On the other hand, the permitted amount of stretch, i.e the difference between the circumference of the16 cap and the circumference of the rims, should be small enough that if the caps are 17 assembled by a person who is rather clumsy or casual, the caps cannot be distorted 18 by over-tightening the bolts. Thus, the designer should arrange that the cap 19 components will bottom together after just a small amount of stretching over the wheel.
22 Of course, it is not suggested that it is absolutely impossible for the components to 23 be mis-assembled, or damaged by abuse; rather, it is suggested that the design of 24 the components is such that, if the caps are assembled to, and taken off, the split press wheels with the reasonable skill and care of the kind commonly encountered26 in farm machinery users, the caps will always fit correctly, and will have a long 27 service life.
29 The compound-curved shape of the components makes the caps rigid and strong, even though the caps may be of light-gauge metal.
32 The distorted areas of the caps, where the bolts are assembled, of course means 33 that the soil is not rolled quite evenly. However, this unevenness is small enough to 34 be immaterial. It is recognised that, even though the cap is recessed in the regions near the fasteners, and therefore the capped wheel is not of a constant radius, that 2 does not matter in a press wheel, which rolls over soil (whereas the bumps caused 3 by the recesses of course would matter in a road wheel, for example).
Claims (13)
- CLAIM 1. Cap apparatus for a split-press-wheel of an agricultural vehicle, wherein:
the split-press-wheel is of the kind which comprises two wheel-halves placed side by side, having a gap therebetween;
the apparatus is in a plurality of circumferentially-separable cap components, which are assemblable together to form a complete circumferential encirclement of the split-press-wheel;
when assembled around the split-press-wheel, the cap is circumferentially complete;
the apparatus includes a fastener, for fastening the cap components together;
the fastener is located, as to its axial location, centrally within the cap;
the fastener is located, as to its axial location when the cap is assembled on the split-press-wheel, in the gap between the two wheel halves;
the apparatus includes an operable means for hoop-stretching the assembled cap tightly over the rim of the split-press-wheel, which is effective, when operated, to grip the assembled cap tightly to the wheel, and to hold same to the wheel byfrictional engagement;
the fastener is releasable, whereby, when the fastener is released, the caps can be removed from the split-press-wheel. - Claim 2. Apparatus of claim 1, wherein the cap is compound-curved, being convex both radially and axially with respect to the wheel, when assembled thereto.
- Claim 3. Apparatus of claim 1, wherein the cap components are formed with inwards-protruding tags, which engage the tags, engage the gap between the wheel-halves, and which thereby position the cap axially with respect to the wheel halves.
- Claim 4. Apparatus of claim 1, wherein the operable means for hoop-stretching the cap assembled cap comprises the fastener.
- Claim 5. Apparatus of claim 4, wherein the fastener includes a first tightenable screw-threaded connection.
- Claim 6. Apparatus of claim 5, wherein the cap halves are circumferentially slightly shorter than the circumference of the rim of the split-press-wheel, whereby, when the fastener tightens the cap components together over the split-press-wheel, the cap components become hoop-stretched.
- Claim 7. Apparatus of claim 6, wherein the cap halves include means for bottoming the cap components together circumferentially, thereby limiting the amount of hoop-stretching of the cap.
- Claim 8. Apparatus of claim 1, wherein the cap is in two separable components, each occupying roughly half the circumference of the wheel.
- Claim 9. Apparatus of claim 8, wherein the fastener includes a first tightenable screw-threaded connection, and includes a second fastener, which is a self-engaging fastener, located diametrically opposite the first fastener.
- Claim 10. Apparatus of claim 8, wherein the fastener includes a first tightenable screw-threaded connection, and includes a second fastener, which is also a tightenable screw-threaded connection, located diametrically opposite the first fastener.
- Claim 11. Apparatus of claim 1, wherein the cap is formed with a recess therein, in the region of the fastener, whereby the assembled cap, in the said region, is of a radius that is different from the radius of the rest of the assembled cap, away from the region of the fastener.
- Claim 12. Apparatus of claim 1, wherein:
the cap is compound-curved, being convex both radially and axially with respect to the wheel, when assembled thereto;
the cap components are formed with inwards-protruding tags, which engage the tags, engage the gap between the wheel-halves, and which thereby position the cap axially with respect to the wheel halves;
the operable means for hoop-stretching the assembled cap comprises the fastener;the cap is in two separable components, each occupying roughly half the circumference of the wheel;
the fastener includes a first tightenable screw-threaded connection, and includes a second fastener, which is a self-engaging fastener, located diametrically opposite the first fastener;
the cap halves are circumferentially slightly shorter than the circumference of the rim of the split-press-wheel, whereby, when the fastener tightens the cap components together over the split-press-wheel, the cap components become hoop-stretched;
the cap halves include means for bottoming the cap components together circumferentially, thereby limiting the amount of hoop-stretching of the cap;
the cap is formed with a recess therein, in the region of the fastener, whereby the assembled cap, in the said region, is of a radius that is different from the radius of the rest of the assembled cap, away from the region of the fastener. - Claim 13. Apparatus of claim 1, wherein:
the cap is compound-curved, being convex both radially and axially with respect to the wheel, when assembled thereto;
the cap components are formed with inwards-protruding tags, which engage the tags, engage the gap between the wheel-halves, and which thereby position the cap axially with respect to the wheel halves;
the operable means for hoop-stretching the assembled cap comprises the fastener;the cap is in two separable components, each occupying roughly half the circumference of the wheel;
the fastener includes a first tightenable screw-threaded connection, and includes a second fastener, which is also a tightenable screw-threaded connection, located diametrically opposite the first fastener;
the cap halves are circumferentially slightly shorter than the circumference of the rim of the split-press-wheel, whereby, when the fastener tightens the cap components together over the split-press-wheel, the cap components become hoop-stretched;
the cap halves include means for bottoming the cap components together circumferentially, thereby limiting the amount of hoop-stretching of the cap;
the cap is formed with a recess therein, in the region of the fastener, whereby the assembled cap, in the said region, is of a radius that is different from the radius of the rest of the assembled cap, away from the region of the fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2206883 CA2206883A1 (en) | 1997-06-02 | 1997-06-02 | Cap for split press wheel of agricultural vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2206883 CA2206883A1 (en) | 1997-06-02 | 1997-06-02 | Cap for split press wheel of agricultural vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2206883A1 true CA2206883A1 (en) | 1998-12-02 |
Family
ID=4160809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2206883 Abandoned CA2206883A1 (en) | 1997-06-02 | 1997-06-02 | Cap for split press wheel of agricultural vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2206883A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3207784A1 (en) * | 2016-02-16 | 2017-08-23 | Horsch Maschinen GmbH | Seed pressing roller |
-
1997
- 1997-06-02 CA CA 2206883 patent/CA2206883A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3207784A1 (en) * | 2016-02-16 | 2017-08-23 | Horsch Maschinen GmbH | Seed pressing roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |