Title:
PACKAGE, PACKAGE MANUFACTURING METHOD AND YARN WINDING DEVICE
Document Type and Number:
Japanese Patent JP2023055344
Kind Code:
A
Abstract:
To reduce unwinding tension when unwinding a package.SOLUTION: A package 100 of the present disclosure includes a cone-shaped winding tube 120 and a thread layer 110. The winding tube 120 has a tapered winding surface inclined from a central axis C by a first angle θ. The thread layer 110 is obtained by winding yarn so that a winded surface is formed having the same inclination as the winding surface of the winding tube 120. The thread layer 110 includes: a first thread layer 111 being in contact with the winding tube 120 and having a first traverse width W1; a second thread layer 112 being on the first thread layer 111 and having a second traverse width W2 that decreases with the increase in distance from the first thread layer 111; and a third thread layer 113 being on the second thread layer 112 and having a third traverse width W3. The first traverse width W1 satisfies a relation of W1×1/2≤W3≤W1×2/3 with respect to the third traverse width W3 .SELECTED DRAWING: Figure 2
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Inventors:
TAKAYASU KOJI
Application Number:
JP2021164637A
Publication Date:
April 18, 2023
Filing Date:
October 06, 2021
Export Citation:
Assignee:
MURATA MACHINERY LTD
International Classes:
B65H54/32; B65H54/02; B65H54/28
Attorney, Agent or Firm:
Patent Attorney Corporation Shinju Global IP