A tire for planting equipment is disclosed, the tire composed of a tire material and comprising: a rim-mounting surface, a first side wall having a thickness, a second side wall having a thickness, and a contact wall having a thickness and defining a contact area; the first, second, and contact walls defining a hollow channel, and the second side wall having a tapered portion and disc contact portion. A method for manufacturing a seeder tire of variable hardness is also disclosed, the method comprising the steps of: introducing a first polyurethane compound having a first hardness value into a first portion of a tire mold; allowing an amount of time to elapse wherein the first polyurethane compound will gel; and introducing a second polyurethane compound having a second hardness value into a second portion of the mold.
Seeder tire
2017-05-09
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen / B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B29K Index-Schema für Formmassen oder Materialien für Verstärkungen, Füllstoffe oder vorgeformte Teile, z.B. Einlagen in Verbindung mit den Unterklassen B29B, B29C oder B29D , INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS |
Wheat seeder tire leveling device for wet and rotten fields
European Patent Office | 2021
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