Wheelwright machines – Grooving – slitting and/or lacerating of rubber tires
Patent
1989-11-06
1991-04-09
Smith, James G.
Wheelwright machines
Grooving, slitting and/or lacerating of rubber tires
B29H 2108
Patent
active
050056280
ABSTRACT:
A method and an apparatus for compensating a radial deflection and/or a lateral deflection in tire grooving wherein a cutter movement is controlled by a plurality of operating shafts and a desired pattern grooves are formed in a tire surface, wherein the radial deflection in a direction along diameter of the tire, which is supported by a tire supporting shaft, and/or the lateral deflection in a direction along diameter of the tire are detected before or during tire grooving, an a radially driving member, which moves a cutter in a direction along diameter of the tire, and/or a laterally driving member, which moves a cutter in a direction along width of the tire, are actuated in accordance with a reference program, and concurrently a movement of the radially driving member and/or a movement of the laterally driving member are adjusted in accordance with a correction program based on the detected deflection value in order to follow the radial deflection and/or the lateral deflection. The method and apparatus forms a groove having a desired constant depth and a desired constant width at a desired constant position from the tire tread center and simplifies the structure of the program to allow a smaller size of the apparatus.
REFERENCES:
patent: 3426828 (1969-02-01), Neilsen
patent: 4147196 (1979-04-01), Jarry
patent: 4237955 (1980-12-01), Clayton
patent: 4782881 (1988-11-01), Brinkley et al.
Kinuhata Satoru
Shibata Eiji
Takami Masao
Tamura Tadahiko
Smith James G.
Sumitomo Rubber Industries Inc.
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