Vulcanizing press for tire blanks provided with inductors

Patent metadata

Field	Value
Publication number	US-9387606-B2
Application number	US-201214366256-A
Country	US
Kind code	B2
Filing date	Dec 12, 2012
Priority date	Dec 19, 2011
Publication date	Jul 12, 2016
Grant date	Jul 12, 2016

Abstract

The vulcanizing press for curing green tire blanks having:
a component, at least one inductor comprising an armature having two free ends exhibiting soles which are able to close an electromagnetic loop through the component, and for each sole, at least one connecting element connecting the sole to the component and forming between the two of them at least one space, the connecting element or elements associated with the sole occupying in total less than half of a length of the sole.

First claim

The invention claimed is:

1. A vulcanizing press for curing green tire blanks, characterized in that it comprises:
a component,
at least one inductor comprising an armature having two free ends exhibiting soles which are able to close an electromagnetic loop through the component, and
for each sole, at least one connecting element connecting the sole to the component and forming between the two of them at least one space, the connecting element or elements associated with the sole occupying in total less than half of a length (L) of the sole.

2. The press according to claim 1 , wherein the or each space is occupied only by air.

3. The press according to claim 1 , wherein each sole comprises two separate connecting elements.

4. The press according to claim 1 , wherein the or each connecting element extends away from longitudinal ends of the sole.

5. The press according to claim 1 , wherein the or each connecting element extends away from a centre of the sole.

6. The press according to claim 1 , wherein at least one of the connecting elements of the inductor is of one piece with the armature.

7. The press according to claim 1 , wherein at least one of the connecting elements of the inductor is of one piece with the component.

8. The press according to claim 1 , wherein at least one of the connecting elements forms a member independent of the armature and of the component.

9. The press according to claim 1 , wherein at least one of the connecting elements is made of aramid.

10. The press according to claim 1 , wherein the armature comprises a core and two legs the free ends of which exhibit the soles, the armature being such that:
H J ≧1.1× I A

where:
H J denotes a height of each leg measured from the sole up to a face of the armature that is the opposite face to the sole; and
I A denotes a width of the core measured between the two legs.

11. An inductor, comprising:
a coil, and
an armature having two free ends exhibiting respective soles, each sole bearing at least one connecting element extending as a projection from the sole so that the connecting element or elements occupy in total less than half a length (L) of the sole.

Assignees

• Michelin & Cie
• Michelin Rech Tech
• Michelin Rech Tech

Inventors

• Ferrand Jean-Charles
• Aperce Jean-Claude
• Rochette Alain
• Valentin Didier

Classifications

• B29C33/06 Primary

  using radiation {, e.g. electro-magnetic waves, induction heating} · CPC title

• B29L2030/00

  Pneumatic or solid tyres or parts thereof {(conveyor belts B29L2031/7092; drive belts B29L2031/7094; fourdrinier belts B29L2031/733)} · CPC title

• B29D30/0629

  with radially movable sectors · CPC title

• B29D2030/0674

  Heating by using non-fluid means, e.g. electrical heating · CPC title

• H01F27/24

  Magnetic cores · CPC title