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Moulding element for a tyre mould comprising a porous area

一种模制元件、轮胎模具的技术，应用在生产所述模制元件领域，能够解决减小元件材料密度、机械负荷易损坏、易损坏等问题

Active Publication Date: 2015-06-10
SOCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the presence of a large number of pores in the molded element reduces the material density of the element and makes it more vulnerable to mechanical loads
Therefore, the venting solution disclosed in documents DE102004028462 and DE102004052766 if applied to the molded element of document WO2010 / 076502 would make the latter element too fragile due to its small thickness

Method used

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  • Moulding element for a tyre mould comprising a porous area
  • Moulding element for a tyre mould comprising a porous area
  • Moulding element for a tyre mould comprising a porous area

Examples

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Embodiment Construction

[0033] In the following description, substantially the same or similar elements will be denoted by the same reference numerals.

[0034] figure 1 is a perspective view of a molded element 1 made of metal powder fused together layer by layer. Said molding element comprises a body 3 and projections 4A, 4B protruding from said body 3 . In particular, among these protrusions, the strips 4A are distinguished from the sipe blades (blades) 4B which in this case are perpendicular to the strips 4A. A "strip" means a protrusion whose width is greater than or equal to 2 mm. The strips are intended to mold the grooves in the tread of the tyre. By "sipe blade" is meant a protrusion whose width is less than 2 mm. The sipe blade is intended for molding the sipe in the tread of a tyre.

[0035] The body 3 also includes a first surface 5 and a second surface 7 opposite to the first surface 5 . The first surface 5 is intended for molding all or part of the tread surface of the tyre, and t...

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Abstract

The invention relates to a luggage piece (1) or container having wheels (2), which comprises a braking device and a plurality of pivotable wheels (2). The braking device comprises a manual control means (3) that controls at least one Bowden cable (4), passing through at least one flexible tensioning sheath (5, 6), and controls, via each end, a means for actuating the braking of a pivotable wheel, mounted in a housing (8) connected to a pivotal axis of the pivotable wheel (2). The manual control means (3) has a first button, referred to as the activation button (3a), and a second button, referred to as the deactivation button (3b).

Description

technical field [0001] The invention relates to a molded element obtained by sintering and comprising a specific venting member. Said molding element is intended to be placed in a tire mold, in particular of the segmented type. The invention also relates to a method of producing said molded element. Background technique [0002] A segmented mold comprises several separate parts that when relatively brought together define a generally annular molding space. In particular, the segmented mold comprises two side shells for molding the sidewalls of the tyre, and several peripheral segments located between said shells for molding the tread of the tyre. All these parts are brought together by defined mechanisms with suitable dynamics. [0003] For molding the tread, said mold segments comprise molding elements. By molding element is meant an element of the mold comprising a molding surface which allows part of the tire tread to be molded. [0004] Molded elements can be produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D30/06
CPCB29D30/0629B29D2030/0614B29D2030/0617B29D30/0606Y02P10/25B22F10/28B29C33/10B29C33/3814B29D2030/0612
Inventor R·卡尔韦尔E·布朗切特
Owner SOCIETE DE TECH MICHELIN
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