Endless track for a track-propelled vehicle
View Patent ↗The ground engaging outer side of an endless track of a track-propelled vehicle displays a series of longitudinally spaced profiles which are defined by a central portion and two opposite lateral portions; the rubber material of the lateral portions of the body has a hardness which is greater than the hardness of the rubber material of the central portion of the body.
1. An endless track for a track-propelled vehicle, comprising a body made of a reinforced rubber material, the body having a ground-engaging outer side on which are disposed a series of longitudinally spaced profiles, and an inner side; said body defining a laterally extending central portion and two opposite lateral portions; said track being characterized in that the rubber material of said lateral portions of said body has substantially a hardness which is greater than the hardness of the rubber material of the central portion of said body.
2. An endless track according to claim 1 , characterized in that the rubber material of the lateral portion of the body has an average hardness of between about 75 and about 90 duro A.
3. An endless track according to claim 1 , characterized in that the rubber material of the said lateral portions of the body has an average hardness of between about 80 duro A.
4. An endless track according to claim 1 , characterized in that the rubber material of the said central portion of the body has an average hardness of between about 55 and about 75 duro A.
5. An endless track according to claim 1 , characterized in that the rubber material of the central portion of the body has an average hardness of about 60 duro A.
6. An endless track according to claim 1 , wherein each profile has an identical configuration.
7. An endless track according to claim 1 , wherein some profiles vary in configuration.
8. An endless track according to claim 1 , wherein opposite lateral portions of each configuration have the same configuration.