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Patent Searching and Data


Title:
MOLDING ELEMENT FOR MANUFACTURING A NOISE REDUCING TREAD
Document Type and Number:
WIPO Patent Application WO/2017/056458
Kind Code:
A1
Abstract:
Present invention provide a molding element for a mold used for manufacturing a tread of a tire having a plurality of contacting element, a plurality of grooves and a connecting member connecting two side faces of adjacent contacting elements, the molding element having a molding surface and a rib for forming the groove between adjacent contacting elements and at least two rib side faces, the rib having a notching portion, a guiding member made of a material different from a material of the molding element being received in the notching portion and has two opposite side faces and a top face configured to form a part of a bottom of the groove, the material of the guiding member having a modulus at 10% elongation lower than that of the molding element, the guiding member having a guiding slit, the top face of the guiding member being partly covered by a pair of rib projecting members projecting from opposed side faces of the notching portion, and a rib projection opening portion being formed between the pair of rib projecting members, a distal end of the rib projecting member has a chamfered surface facing to an obliquely upward direction for guiding the connecting member toward the guiding slit.

Inventors:
CALVEL ROMAIN (FR)
PENGSALOONG KHOTCHAKORN (JP)
KHAOYABUT SUPRADIT (JP)
Application Number:
PCT/JP2016/004287
Publication Date:
April 06, 2017
Filing Date:
September 20, 2016
Export Citation:
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Assignee:
MICHELIN & CIE (FR)
MICHELIN RECH TECH (CH)
CALVEL ROMAIN (FR)
PENGSALOONG KHOTCHAKORN (JP)
KHAOYABUT SUPRADIT (JP)
International Classes:
B29C33/42; B29C35/02; B29D30/06
Domestic Patent References:
WO2013178473A12013-12-05
WO2002060705A12002-08-08
Foreign References:
JP2002331526A2002-11-19
JP2010253694A2010-11-11
KR20130078562A2013-07-10
US20080152744A12008-06-26
US6484772B12002-11-26
JP2015086150W2015-12-17
EP0858875A11998-08-19
Other References:
See also references of EP 3356106A4
Attorney, Agent or Firm:
WADA, Yukihiro (JP)
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