MANUFACTURE OF WHOLLY LEATHER-WRAPPED STEERING WHEEL

PURPOSE:To simultaneously perform two processes to cover a core metal with expandable resin and with outer leather by a method wherein the expandable resin is poured in the interior of a ring-like leather tubular body covering the whole ring part of the core metal so as to reaction-mold the resin th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	IMAEDA KIYOHIDE
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRAILERS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To simultaneously perform two processes to cover a core metal with expandable resin and with outer leather by a method wherein the expandable resin is poured in the interior of a ring-like leather tubular body covering the whole ring part of the core metal so as to reaction-mold the resin therein. CONSTITUTION:A cavity 8, which corresponds to the finished shape of a steering wheel main body 1, is provided in a molding die 7. A core metal 2 is fairly and correctly set to the cavity by utilizing a steering wheel shaft connecting part 2c. Vent holes 13 are provided at the upper and lower ends of the molding die 7. Vent holes 14 are also provided at the upper and lower ends of a leather tubular body 4. In addition, gates 10 and the vent holes 13 and 14 are arranged on the back side of the steering wheel main body so as to prevent gate marks and vent marks from developing on the front side of the steering wheel main body. Thus, expandable resin is poured through the gates 10 and the air is exhausted through the vent holes 13 and 14 so as to fill the interior of the leather tubular body 4 in order to perform the reaction molding of a steering wheel.