Set of molding elements and mold

Patent metadata

Field	Value
Publication number	US-10315339-B2
Application number	US-201615579493-A
Country	US
Kind code	B2
Filing date	Jun 3, 2016
Priority date	Jun 11, 2015
Publication date	Jun 11, 2019
Grant date	Jun 11, 2019

Abstract

The invention provides for a set of molding elements (4, 5) adapted to be attached in a mold for molding tires, each molding element being able to mold a cut in a tire tread, wherein the set of molding elements comprises complex shaped molding elements, each molding element being able to connect to another molding element from the set of molding elements along a generally straight interface (54) defined between connecting molding elements The invention also provides for a mold for molding tires, said mold comprising a set of molding elements as described above attached to a main cast aluminum body.

First claim

What is claimed is:

1. A set of molding elements adapted to be attached in a mold for molding tires, each molding element being able to mold a cut in a tire tread, comprising:
a circumferential molding element and a transverse molding element, the circumferential molding element being able to connect to the transverse molding element from the set of molding elements along a generally straight interface defined between the circumferential molding element and the transverse molding element;
wherein the generally straight interface is defined on lateral walls of the circumferential and transverse molding elements;
wherein the generally straight interface has a slot arranged in a protruding part from the lateral wall of the circumferential molding element.

2. A set of molding elements according to claim 1 , wherein the set of molding elements having the transverse molding element that comprises an undulated blade having a generally straight blade edge for connection to the circumferential molding element.

3. A set of molding elements according to claim 1 wherein the protruding part is a forming post extending along a full molding height of the lateral wall of the circumferential molding element.

4. A set of molding elements according to claim 1 , wherein the set of molding elements having the circumferential molding element and the transverse molding element obtained by a laser sintering process.

5. A set of molding elements according to claim 4 wherein all molding elements are obtained by a laser sintering process.

6. A mold for molding tires, said mold comprising a set of molding elements according to claim 1 attached to a main cast aluminum body.

7. A set of molding elements adapted to be attached in a mold for molding tires, each molding element being able to mold a cut in a tire tread, comprising:
a circumferential molding element and a transverse molding element, the circumferential molding element being able to connect to the transverse molding element from the set of molding elements along a generally straight interface defined between the circumferential molding element and the transverse molding element,
wherein the circumferential molding element having a void arranged in a bar portion of the circumferential molding element, said void being able to receive a bar portion from the transverse molding element in connecting the circumferential molding element and the transverse molding element.

8. A set of molding elements adapted to be attached in a mold for molding tires, comprising a plurality of molding elements that have a circumferential molding element and a transverse molding element each able to mold a cut in a tire tread, wherein the circumferential molding element and the transverse molding element being able to connect to one another along a generally straight interface defined between the circumferential molding element and the transverse molding element,
wherein the generally straight interface is arranged on lateral walls of the circumferential and transverse molding elements and is a slot in the lateral wall of the circumferential element and an edge of the lateral wall of the transverse molding element received by the slot.

Assignees

• Michelin & Cie

Inventors

• Jenkins Brian William
• Constantin Lazar

Classifications

• B29D2030/0613

  Means, e.g. sipes or blade-like elements, for forming narrow recesses in the tyres, e.g. cuts or incisions for winter tyres · CPC title

• B29D30/0606

  Vulcanising moulds not integral with vulcanising presses (for solid tyres B29D30/02) · CPC title

• B29C33/42

  characterised by the shape of the moulding surface, e.g. ribs or grooves · CPC title

• B29C33/302 Primary

  Assembling a large number of mould elements to constitute one cavity · CPC title