Claims
- 1. A green tire charging apparatus for a tire vulcanizing machine, comprising: holders having holder arms projected horizontally from bottom ends thereof; an inner cylinder for operating a metal mold having an upper bead ring and a lower bead ring; a chuck elevator cylinder fixed to an inside of said inner cylinder; a chuck body which is insertable into a tire; a chuck upper plate mounted to a bottom end of said chuck elevator cylinder; posts connecting said chuck body with said chuck upper plate, said holders being elevatably and rotatably fitted around said posts; a plurality of chuck segments, which are synchronously slidable in radial directions, provided on said chuck body; centering rods vertically slidably mounted in said chuck segments at positions inwardly of outer ends thereof, respectively, said entering rods having upper portions projecting above upper surfaces of said chuck segments and lower portions projecting below lower surfaces of said chuck segments, respectively; means for radially expanding said chuck segments by causing them to synchronously slide radially outwardly; wherein said upper portions of said centering rods constitute means for concentrically holding an upper bead portion of the tire when said chuck segments are expanded; wherein said lower portions of said centering rods constitute means for concentrically holding a lower bead portion of the tire; wherein said chuck elevator cylinder constitutes a means for raising and lowering said chuck body; and wherein means are provided for causing said holder arms to swing up and rise; whereby said chuck body is raised to insert the upper bead portion of the tire into the upper bead ring of the metal mold, subsequently said holder arms are made to swing out and rise to hold the upper bead portion, and then said chuck body is lowered to cause said means defined by said lower portions of said centering rods to concentrically hold a lower bead portion of the tire and to insert the lower bead portion of the tire into a lower bead ring of the metal mold.
- 2. A green tire charging apparatus for a tire vulcanizing machine as claimed in claim 1, wherein said means for radially expanding said chuck segments comprises: a chuck opening cylinder fixed to said chuck upper plate, said chuck opening cylinder having a piston rod; a cam plate fixedly secured to said piston rod; and levers having first ends engaged with said chuck segments, respectively, and second ends engaged with said cam plate.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2-124296[U] |
Nov 1990 |
JPX |
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Parent Case Info
This application is a continuation of now abandoned application Ser. No. 07/798,604, filed on Nov. 26, 1991, abandoned.
US Referenced Citations (12)
Foreign Referenced Citations (4)
Number |
Date |
Country |
2176503 |
Nov 1973 |
FRX |
2239435 |
May 1977 |
FRX |
2-200405 |
Aug 1990 |
JPX |
1177617 |
Jan 1970 |
GBX |
Continuations (1)
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Number |
Date |
Country |
Parent |
798604 |
Nov 1991 |
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