Title:
ELBOW MATERIAL AND PRODUCTION DEVICE AND PRODUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2008/069269
Kind Code:
A1
Abstract:
A method and a device for bending a metal hollow thick-walled member to a specified
angle without deviation of the bending center position and without separation
from a semi-die when an extrusion die moves up. With a pair of guide plates turnably
attached to a center pin CP kept horizontal and the axis center of the center pin
intersecting with the axis center of the metal hollow thick-walled member PM,
the member PM is mounted on a semi-die (82a).When metal die holding members fixed
to the above guide plates and kept horizontal are inclined and separated from
each other as the center pin lowers, the member PM is bent to a specified angle and
held on a semi-die (82b). When the center pin that can be moved vertically by a
guide member moves down to a specified bending position, a contact portion (96b)
contacts the inclined surface of a stopper (92b) to allow a base plate (16) to receive
a pressurizing force from an upper die via the stopper.
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Inventors:
BANDOU, Takeyasu (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
坂東 健康 (〒14 東京都品川区大井４丁目１３番１７号 イハラサイエンス株式会社内 Tokyo, 1400014, JP)
FUKAYA, Shinji (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
深谷 信二 (〒14 東京都品川区大井４丁目１３番１７号 イハラサイエンス株式会社内 Tokyo, 1400014, JP)
坂東 健康 (〒14 東京都品川区大井４丁目１３番１７号 イハラサイエンス株式会社内 Tokyo, 1400014, JP)
FUKAYA, Shinji (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
深谷 信二 (〒14 東京都品川区大井４丁目１３番１７号 イハラサイエンス株式会社内 Tokyo, 1400014, JP)
Application Number:
JP2007/073583
Publication Date:
June 12, 2008
Filing Date:
December 06, 2007
Export Citation:
Assignee:
IHARA SCIENCE CORPORATION (13-17, Oi 4-chome Shinagawa-k, Tokyo 14, 1400014, JP)
イハラサイエンス株式会社 (〒14 東京都品川区大井４丁目１３番１７号 Tokyo, 1400014, JP)
BANDOU, Takeyasu (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
坂東 健康 (〒14 東京都品川区大井４丁目１３番１７号 イハラサイエンス株式会社内 Tokyo, 1400014, JP)
FUKAYA, Shinji (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
イハラサイエンス株式会社 (〒14 東京都品川区大井４丁目１３番１７号 Tokyo, 1400014, JP)
BANDOU, Takeyasu (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
坂東 健康 (〒14 東京都品川区大井４丁目１３番１７号 イハラサイエンス株式会社内 Tokyo, 1400014, JP)
FUKAYA, Shinji (13-17 Oi 4-chome,Shinagawa-k, Tokyo 14, 1400014, JP)
International Classes:
B21D7/06; B30B1/10
Attorney, Agent or Firm:
HAMADA, Haruo (Wisdom House, 4-12 Minami-Aoyama 3-chom, Minato-ku Tokyo 62, 1070062, JP)
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