Process for manufacturing a wheel of a roller skate

Details Process for manufacturing a wheel of a roller skate Process for manufacturing a wheel of a roller skate

1996-11-19

1998-02-03

Kuhns, Allan R.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

Composite article making

264154, 264263, 2642711, 2643281, 29894351, B29C 4406, B29C 4412, B29C 4514

Patent

active

057141002

ABSTRACT:
A process for manufacturing a wheel of a roller skate with a hub and a wheel body fixed around the hub is disclosed. The wheel body has a soft inner portion which is mounted around the hub and a hard outer portion which is fixed around the soft inner portion. The process includes: connecting two ends of a rubber tube in order to form a molding loop; forming a radial hole in the molding loop; charging a foamable rubber material into the molding loop via the radial hole; allowing the foamable rubber material to foam and fill the molding loop in order to form the inner portion of the wheel body; mounting the molding loop around an outer periphery of the hub; and injection molding a rubber material in a mold in order to form the outer portion of the wheel body around the molding loop and the outer periphery of the hub and in order to melt the molding loop and interconnect the foamable rubber material and the outer portion.

REFERENCES:
patent: 2932856 (1960-04-01), Rockoff
patent: 4040670 (1977-08-01), Williams
patent: 4603025 (1986-07-01), Landay et al.
patent: 4908170 (1990-03-01), Kurimoto
patent: 5004572 (1991-04-01), Kurimoto
patent: 5120279 (1992-06-01), Rabe

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