Die and method for manufacturing core

Details Die and method for manufacturing core Die and method for manufacturing core

2005-03-29

2008-10-07

Mackey, James (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Female mold type means

C425S121000, C425S128000, C425S129100, C425S324100

Reexamination Certificate

active

07431577

ABSTRACT:
An object of the present invention is to provide a die and a method for manufacturing a core, wherein the core includes a ring-shaped supporting member16that is formed by a plate-like member, that is disposed inside a pneumatic tire, and that supports a pneumatic tire by allowing an inner side of a tread portion of the pneumatic tire to be brought into contact with an outer peripheral surface of the supporting member at the time of a deformation of the pneumatic tire due to a decrease of an internal pressure of the tire, and ring-shaped rubber portions that are joined respectively to both widthwise direction edge portions of the supporting member. A pressing machine10includes a ring-shaped core die26that is brought into contact with the supporting member16from a radial direction inner side thereof to support the supporting member16while maintaining a non-contact state with the both widthwise direction edge portions of the supporting member16, and an upper intermediate die28and a lower intermediate die30that are disposed so as to hold the core die26therebetween from a widthwise direction of the core die26and that form cavities42A and42B for the rubber portions between the upper intermediate die28and the core die26as well as between the lower intermediate die30and the core die26. The rubber material G contained in the pod portions46A1, 46A2, 46B1and46B2formed at the dies28and30are transferred from runners44A1, 44A2, 44B1and44B2into cavities42A and42B.

REFERENCES:
patent: 2914800 (1959-12-01), Morin
patent: 4362490 (1982-12-01), Machida et al.
patent: 101 61 365 (2003-06-01), None
patent: 102 08 613 (2003-06-01), None
patent: 103 34 438 (2005-02-01), None
patent: 48-21765 (1973-03-01), None
patent: 62-32038 (1987-02-01), None
patent: 62-68711 (1987-03-01), None
patent: 62-240519 (1987-10-01), None
patent: 4-267117 (1992-09-01), None
patent: 6-312432 (1994-11-01), None
patent: 2004-1022 (2004-01-01), None
patent: 2004-189214 (2004-07-01), None
patent: 2005/014310 (2005-02-01), None
European Search Report dated May 28, 2008.

Affiliated with

Also associated with

Rating

Die and method for manufacturing core does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Die and method for manufacturing core, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Die and method for manufacturing core will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4019724