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Reinforced semi-pneumatic tire

  • US 5,499,669 A
  • Filed: 07/14/1994
  • Issued: 03/19/1996
  • Est. Priority Date: 07/14/1994
  • Status: Expired due to Fees
First Claim
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1. A semi-pneumatic tire, comprising:

  • a radially inner wall;

    first and second side walls operatively coupled with the inner wall;

    a radially outer wall operatively coupled with the first and second side walls, said outer wall being adapted to shift radially inwardly under operating loads caused by ground contact;

    at least a pair of rib portions extending radially inwardly from the outer wall and toward the inner wall for generally rigidifying said outer wall under operating loads;

    wherein said side walls include a radially outer portion and a radially inner portion, said inner portion being thicker and more rigid than the outer portion such that the radially outer wall abuts against the inner portion of the side walls when the outer wall shifts radially inwardly under operating loads, said shifting of the outer wall being thereby limited; and

    wherein said ribs reinforce the outer wall for generally hindering the inward shifting of the outer wall, said ribs being spaced from the side walls and radially inner wall for generally acting as T-beams when the radially outer wall abuts against the inner portion of the side walls for generally hindering further inward shifting when the outer wall abuts against the inner portion of the side walls.

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