Title:
自動車用タイヤのカーカス構造体の製造方法及び自動車の車輪用タイヤのカーカス構造体
Document Type and Number:
Japanese Patent JP4294803
Kind Code:
B2
Abstract:
Formation of a carcass ply takes place by laying down onto a toroidal support (11), a first and a second series of strip-like sections (13, 14) cut to size from a continuous strip-like element (2a) and each comprising longitudinal thread-like elements (15) incorporated into a layer of elastomer material (18). The sections (13) of the first series are sequentially disposed at some circumferential distance from each other, to form side portions (19) to the end flaps (19a) of which primary portions (4a) of respective bead-reinforcing structures (4) are applied. The sections (14) of the second series are each interposed in the space defined between two sections of the first series (13), with the respective end flaps (20a) overlapping the primary portions (4a) of the annular structures (4). Additional portions (24) of the annular structures are applied to the end flaps (20a) of the sections (14) belonging to the second series.
Inventors:
Renato Caretta
Application Number:
JP21849799A
Publication Date:
July 15, 2009
Filing Date:
August 02, 1999
Export Citation:
Assignee:
Pirelli, Tire, Sochieta, Per, Azioni
International Classes:
B29D30/18; B29D30/00; B60C9/04; B29D30/08; B29D30/10; B29D30/16; B29D30/34; B29D30/48; B60C9/02; B60C9/08; B60C15/00; B60C15/04; B60C15/05; B60C15/06
Domestic Patent References:
| JP44020562B1 | ||||
| JP49076978A | ||||
| JP9183169A | ||||
| JP6171306A | ||||
| JP7215006A | ||||
| JP9024712A |
Foreign References:
| US1728957 |
Attorney, Agent or Firm:
Yoshiyuki Inaba
Katsuro Tanaka
Shinji Oga
Katsuro Tanaka
Shinji Oga
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