PNEUMATIC FURROW

• US 20170006768A1
• Filed: 06/21/2016
• Published: 01/12/2017
• Est. Priority Date: 07/10/2015
• Status: Active Grant

• Current Assignee: Otico
• Original Assignee: Otico
• Inventors: PHELY, Olivier
• Granted Patent: US 9,867,327 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A01B 29/043 Tire-packers
• CPC Class Codes: A01C 5/068 Furrow packing devices, e.g. press wheels
• CPC Class Codes: B60C 11/0311 Patterns comprising tread lugs arranged parallel or oblique to the axis of rotation
• CPC Class Codes: B60C 7/12 using enclosed chambers, e.g. gas-filled

Abstract

A tire for a furrow press roller comprises a sole via which the tire is mounted on a field roller support, a tread opposite to the sole, and two sidewalls connecting the tread to the sole. The sole, the tread and the sidewalls together delimit a non-inflatable chamber. The tread comprises at least one crest and two shoulders each connecting the crest to a respective sidewall. The chamber extends partially at least laterally under the shoulders and radially into the crest.

Claims

1. Tire for a furrow press roller of the type comprising:

a sole via which the tire is mounted on a field roller support,

a tread opposite to the sole, and

two sidewalls connecting the tread to the sole, the sole, the tread and the side walls together delimiting a non-inflatable chamber, wherein the tread comprises;

at least one crest-shaped portion, and

two shoulder portions each connecting the crest-shaped portion to a respective sidewall,

the chamber extending partially at least laterally under the shoulder portions and radially into the crest-shaped portion.

2. Tire according to claim 1, in which the shoulder portions are of convex overall shape.

3. Tire according to claim 1 in which an exterior surface of the crest-shaped portion bears at least one relief element.

4. Tire according to claim 1, in which the sole and/or the tread comprise at least one portion projecting into the chamber under the shoulder portions and arranged in such a way as to limit, through abutment, the extent to which the sole and the tread can move closer together.

5. Tire according to claim 1, in which at least one of the sidewalls has a frustoconical lateral surface.

6. Tire according to claim 1, in which at least one of the two shoulder portions is connected to a respective sidewall so that the overall direction of the shoulder portion and the overall direction of the respective sidewall form an angle (α

) of between 90° and

135°

.

7. Tire according to claim 1, in which the crest-shaped portion has inclined flanks such that the overall direction of each of the flanks forms an angle (β

) of between 0° and

45°

with respect to a radial direction.

8. Tire according to claim 1, in which at least one of the two shoulder portions is connected to the crest-shaped portion so that the overall direction of the shoulder portion and the overall direction of the crest-shaped portion form an angle (θ

) of between 90° and

120°

.

9. Tire according to claim 1, in which the crest-shaped portion extends radially beyond the shoulder portions over a height of between 30 and 120 millimeters.

10. Tire according to claim 1, in which the ratio of the width over which the crest-shaped portion extends to the total width of the tire is between 15% and 70%.

11. Furrow press roller comprising a support and at least one tire according to claim 1, that mounts on the support.