Continuous plastic tire body and tire

• US 4,033,395 A
• Filed: 03/06/1975
• Issued: 07/05/1977
• Est. Priority Date: 03/06/1975
• Status: Expired due to Term

• Current Assignee: Winfred M BERG Incorporated
• Original Assignee: Daniel T. Berg, Winfred M. Berg
• Inventors: Berg, Daniel T., Berg, Winfred M.
• Primary Examiner(s): Hoffman, Drayton E.
• Application Number:
  US05/555,783
• Time in Patent Office: 852 Days
• Field of Search: 152/157, 152/310-314, 152/323-325, 152/327-329, 152/318, 152/339, 152/379, 152/381, 152/DIG. 12
• US Class Current: 152/323
• CPC Class Codes: B29D 30/02 Solid tyres ; Moulds therefor
• CPC Class Codes: B60C 5/007 made from other material than rubber
• CPC Class Codes: B60C 7/1015 using foam material
• CPC Class Codes: B60C 7/24 characterised by means for securing tyres on rim or wheel body
• CPC Class Codes: Y10T 152/10378 Casing enclosed core

Abstract

A tire suitable for all types of wheels, including vehicles and wheels, such as in automobiles, motorcycles or bicycles, in which the tire body is an extruded or molded plastic material formed in indeterminate length complete with conventional tread and shape means to fit the usual rim of a wheel. The tire is completed by cutting a length from the indeterminate length of tire body equivalent to the rim size of the wheel for which it is intended, then bonding the ends together. The finished tire may then be stretched and snapped on the wheel frame or rim.

Claims

1. A tire, sized to be stretch-snapped over a rim, comprising a selected cut portion of tire body material in finished form, having a first end and a second end, said selected cut portion having been cut from a strip of flexible heat spliceable plastic tire body material of indeterminate length comprising tread means and rim fit means, said selected cut of material having been curved into an annular shape with said first end and said second end held in abutting relationship and spliced with means comprising a thin hot blade held temporarily between said abutting ends.

2. The tire as claimed in claim 1, in which the tread means comprise a tread pattern and the rim fit means is shaped in cross section in at least one portion to conform to at least one portion of the cross section of a wheel rim.

3. The tire as claimed in claim 2, in which the tread pattern comprises at least one longitudinal groove.

4. The tire as claimed in claim 3, in which the surface of the tread pattern forms a plurality of geometric pattern details.

5. The tire as claimed in claim 2, in which the tread pattern comprises a plurality of recessed areas.

6. The tire as claimed in claim 2, in which the rim fit means comprises shoulder element means positioned for contacting relationship to the edge means of the rim for which it is intended.

7. A tire as claimed in claim 6 in which the rim fit means is further shaped in cross section to include shelf element means positioned to extend laterally and be in spaced facing position to the shoulder means.

8. A tire as claimed in claim 7, in which there are spaces in the rim fit means.

9. A tire as claimed in claim 8 comprising a plurality of materials.

10. A tire as claimed in claim 8 comprising a plurality of materials of different durometers.

11. The tire as claimed in claim 2, in which the rim fit means is shaped in cross section to include shelf element means positioned to extend laterally and in facing relationship to inner rim edges of a wheel rim having a U-shaped inner cross section.

12. The tire as claimed in claim 1, in which the rim fit means comprises means to fit within the U-shaped portion of a rim in combination with lip means provided to overlap the outer portion of a rim.

13. The tire as claimed in claim 2 comprising a medial longitudinal groove in the rim fit portion located to be in facing relationship to the inner medial portion of a rim.

14. The tire as claimed in claim 2 comprising at least one outer side wall cavity.

15. The tire as claimed in claim 14, in which the cavities comprise snap-in accessories.

16. The tire as claimed in claim 15, in which the accessories are reflector means.

17. The tire as claimed in claim 14, in which the outer side wall cavity is continuous.

18. A tire as claimed in claim 17 which comprises an annular braking means in the cavity.

19. The tire as claimed in claim 1, in which the tread means comprises a tread pattern and the rim fit means comprises lip means to overlap the outer portions of a rim.

20. The tire as claimed in claim 2, in which the body material is provided with transverse spaces in the rim fit means.

21. The tire as claimed in claim 20, in which the spaces are in the form of notches.

22. The tire as claimed in claim 1, made of a single principal material.

23. The tire as claimed in claim 1 made of a plurality of materials of different durometers.

24. The tire as claimed in claim 1 comprising an outer material surrounding at least one air pocket.

25. A tire as claimed in claim 1, in which the outer portion of the tire body is made of a first material which covers at least partially a core made of a second material.

26. A tire as claimed in claim 1, in which the second material core is completely enclosed by the first material.

27. A tire as claimed in claim 1 being stretched and snapped over to fit in combination with a wheel rim, comprising an inner core made of foamed material.

28. A tire as claimed in claim 27, in which the inner core foamed material has been formed from a supply of plastic material having the property of foaming upon application after the tire was stretch-shaped over the rim.

30. A tire as claimed in claim 1 in which the means for holding said ends in abutting relationship during the heat splicing with the thin hot blade comprises a clamp.

29. A tire as claimed in claim 38, in which the supply of plastic material is in a plurality of portions which foam when mixed together for application.