Center mechanism of tire press
US5798123A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Oct 30, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D30/0645
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.