Title:
こぶ部を有する靴紐
Document Type and Number:
Japanese Patent JP6643788
Kind Code:
B2
Abstract:
In a conventional string with knobby portions, the diameters of the knob portions are substantially the same over the entire length of the string and therefore difficulty is involved when inserting all of the knobby portions into a string hole, as a large force is required and the task may cause pain in the fingers and hands. Moreover, if the string suddenly needs to be replaced, the installation requires time and effort to be expended. The present invention is characterized in that a string is provided with a plurality of elastically deformable knobby portions disposed at intervals in the axial direction, wherein the knobby portions are configured from two or more types of knobby portions having different diameters in a direction orthogonal to the axial direction of the string.
Inventors:
Takashi Kajiwara
Application Number:
JP2019504159A
Publication Date:
February 12, 2020
Filing Date:
March 07, 2017
Export Citation:
Assignee:
Twins Co., Ltd.
International Classes:
A43C1/02; A43C9/00; D04C1/12
Domestic Patent References:
| JP61239067A | ||||
| JP1014184A | ||||
| JP5056978A | ||||
| JP9206112A | ||||
| JP54116455A | ||||
| JP3160573U | ||||
| JP2017048491A |
Attorney, Agent or Firm:
Kenji Hidaka