The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 25, 1998

Filed:

Oct. 30, 1996
Applicant:
Inventors:

Hisashi Mitamura, Takasago, JP;

Kashiro Ureshino, Takasago, JP;

Hiroyuki Takebayashi, Takasago, JP;

Hisaaki Onishi, Takasago, JP;

Shogo Sarumaru, Takasago, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
425 29 ; 425 48 ; 425 52 ;
Abstract

In a center mechanism of a tire press, which the tire size is changed, the lower limit position of an upper clamp ring is changed to a shaping height corresponding to the size of the exchanged tire only by changing a setting of a controller. Consequently, the work related to the tire size change is facilitated. A bladder is inflated and tightly comes into contact with the inner face of a green tire while lowering the upper periphery of the bladder to the shaping height corresponding to the tire size. The center mechanism includes: an upper clamp mechanism such as an upper clamp ring, that holds the upper periphery of the bladder; a first cylinder for vertically moving the upper clamp mechanism by the reciprocating movement of a piston; a linear sensor for sensing the travel amount of the piston of the first cylinder; and a controller for setting the shaping height as the lower limit position of the upper clamp mechanism and for controlling the reciprocating movement of the piston on the basis of the travel amount.


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