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Title:
SHAPE RETENTION TOOL FOR FOOTWEAR
Document Type and Number:
Japanese Patent JP2016047187
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shape retention tool for footwear which has high strength in an insertion opening, does not leave a pressing mark or flaw on an inner sole face of footwear, and has an excellent shape retention property.SOLUTION: The shape retention tool for footwear includes: (i) a front shape retention part, (ii) an insertion port shape retention part, and (iii) a heel shape retention part. (i) The front shape retention part includes: a valley fold line crossing in a width direction; a mountain fold line positioned in a rear side of the valley fold line, crossing in the width direction, and curved so as to protrude backward; and at least two mountain fold lines extending longitudinally toward a toe side with the valley fold line as a starting point. (ii) The insertion port shape retention part includes: a pair of base points symmetrical with respect to a center line and a mountain fold line connecting the base points, positioned on a boundary with the front shape retention part; two pairs of straight-line-shaped folds symmetrical with respect to the center line from each base point to a lateral side edge, the front fold being a mountain fold line and the rear fold being a valley fold line; and a pair of mountain fold lines extending longitudinally from each base point to a boundary with the heel shape retention part. (iii) The heel shape retention part is connected with the insertion port shape retention part via a mountain fold line crossing in the width direction and includes notch lines on both sides of the mountain fold line.SELECTED DRAWING: Figure 1

Inventors:
SUNAGA YASUHIRO
Application Number:
JP2014173555A
Publication Date:
April 07, 2016
Filing Date:
August 28, 2014
Export Citation:
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Assignee:
ACHILLES CORP
International Classes:
A43D3/14; A47G25/00
Domestic Patent References:
JPS6435910U1989-03-03
JP5479137B22014-04-23
JPS5722309U1982-02-05
JPS6321287U1988-02-12
JPS60120610U1985-08-14
Foreign References:
CH695876A52006-10-13
Attorney, Agent or Firm:
Tomoyuki Totsuka
Toshiko Hiraishi