Curing press for a tire blank, comprising a tie rod

Patent metadata

Field	Value
Publication number	US-10603856-B2
Application number	US-201616060884-A
Country	US
Kind code	B2
Filing date	Dec 8, 2016
Priority date	Dec 10, 2015
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

The curing press for a tire blank includes a frame and a plurality of circumferentially distributed segments which are capable of forming a tread for the tire. Each of the segments has at least one opening. For each segment, at least one tie rod is mounted slidably and rotatably in the opening of the segment on the one hand and hinged to the frame on the other hand. The mounting and hinging form the only connections of the tie rod to elements of the press other than the tie rod.

First claim

The invention claimed is:

1. A curing press for a tire blank, the press comprising:
a frame,
a plurality of circumferentially distributed segments capable of forming a tread of the tire, each of these segments having at least one opening, and
for each segment, at least one tie rod mounted slidably and rotatably in the opening of the segment, and the at least one tie rod being hinged to the frame, this mounting and hinging forming the only connections of the tie rod to elements of the press other than the tie rod.

2. The press according to claim 1 , wherein each tie rod remains housed at one end of the opening of the corresponding segment during more than half of a sliding movement of the segment.

3. The press according to claim 1 , wherein each tie rod slides in the opening of the corresponding segment during a sliding movement of the segment.

4. The press according to any of the preceding claims, wherein each segment has two openings facing one another, wherein the corresponding tie rod is mounted in these two openings.

5. The press according to claim 1 , further including at least one plate carrying a shell capable of forming a tire blank, and wherein the frame comprises ramps arranged to make the segments slide relative to the plate as a result of an upward sliding movement of the plate relative to the frame.

6. The press according to the claim 5 , wherein each ramp of the frame is inclined upwards.

7. The press according to claim 5 , wherein each ramp of the frame is curved.

8. The press according to claim 5 , wherein each ramp of the frame is concave.

9. The press according to claim 5 , wherein the ramps of the frame are upper ramps and wherein the frame further comprises lower ramps against which the segments can bear.

10. The press according to claim 9 , wherein each lower ramp is rectilinear and inclined over more than half of its length.

11. The press according to claim 5 , wherein each segment is trapped in an opening of the frame delimited, at least partially, by one or more of the ramps.

Assignees

• Michelin & Cie

Inventors

• Massoptier-David Michaël
• Chaland Stéphane

Classifications

• B29D30/0605

  Vulcanising presses characterised by moulds integral with the presses having radially movable sectors · CPC title

• B30B11/007

  using a plurality of pressing members working in different directions · CPC title

• B29D30/0629 Primary

  with radially movable sectors · CPC title

• B29C33/26

  by pivotal movement · CPC title

• B29C33/48

  with means for collapsing or disassembling · CPC title