Method for correcting type deflection in tire grooving and appar

Details Method for correcting type deflection in tire grooving and appar Method for correcting type deflection in tire grooving and appar

1990-08-24

1991-11-26

Smith, James G.

Wheelwright machines

Grooving, slitting and/or lacerating of rubber tires

B29D 3068

Patent

active

050675397

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: 3835591 (1974-09-01), Cimprich
patent: 4095374 (1978-06-01), Ugo
patent: 4147196 (1979-04-01), Jarry
patent: 4237955 (1980-12-01), Clayton
patent: 4663889 (1987-05-01), Strand et al.
patent: 4782881 (1988-11-01), Brinkley et al.

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