Title:
DRAWING DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/045797
Kind Code:
A1
Abstract:
Provided is a drawing device capable of suppressing and preventing the generation of wrinkles when a film-like material is drawn, and with which it is possible to obtain a molded body having good shape accuracy.
The configuration comprises: a punch (11); a die (12); a first actuator (10) which generates a first pressing force (F1) for performing drawing; second actuators (14) which generate second pressing forces (F2) for pressing a film-like material (1), in a region at the periphery of a recessed portion of the die; a wrinkle controlling member (13) which suppresses the generation of wrinkles in the film-like material by pressing the film-like material toward the die, in a region at the periphery of the recessed portion of the die; a pressing force transmitting plate (15) for transmitting the second pressing forces to the wrinkle controlling member; and pressing position adjusting blocks (20) disposed in plurality between the wrinkle controlling member and the pressing force transmitting plate, in a region corresponding to a region at the periphery of the recessed portion of the die as viewed in the direction in which the first actuator presses.
Inventors:
SASAI HIDEKAZU (JP)
NAKAO OSAMU (JP)
NAKAO OSAMU (JP)
Application Number:
PCT/JP2014/073464
Publication Date:
April 02, 2015
Filing Date:
September 05, 2014
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
B21D24/10; B21D22/20
Foreign References:
| JPH07290162A | 1995-11-07 | |||
| CH213959A | 1941-03-31 | |||
| JP2002178046A | 2002-06-25 | |||
| JPH0623616U | 1994-03-29 | |||
| JP2009279626A | 2009-12-03 | |||
| JP2005186154A | 2005-07-14 | |||
| JP2004290992A | 2004-10-21 | |||
| JP2006289392A | 2006-10-26 | |||
| JP2008212995A | 2008-09-18 |
Attorney, Agent or Firm:
NISHIZAWA, HITOSHI (JP)
Hitoshi Nishizawa (JP)
Hitoshi Nishizawa (JP)
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