Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
FELT NEEDLE
Document Type and Number:
Japanese Patent JPH07331575
Kind Code:
A
Abstract:

PURPOSE: To provide a felt needle serviceable for a longer period by designing the wear of respective barb parts to be made uniform.

CONSTITUTION: This felt needle has an axial part, a second blade, blade 13. The blade 13 is provided with plural barbs 14 each having a trapezoidal press surface 14a tilted at an angle α with the vertical axis rectangular to the blade axial line. And, the envelope angle θ for these barbs 14, i.e., the tilt angle of both the sides of the press surface 14a is set at ≤55° correspondingly to the tilt angle α of the press surface 14a, and based on this angle θ, the bottom width dimension and tip width dimension of the press surface 14a and the height dimension H of the barbs 14 are specified.


Inventors:
Mitsui, Yoshikazu
Totani, Yutaka
Application Number:
JP1994000144055
Publication Date:
December 19, 1995
Filing Date:
June 03, 1994
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
ORGAN NEEDLE CO LTD
International Classes:
D04H18/00; D04H18/02; (IPC1-7): D04H18/00
Attorney, Agent or Firm:
薬師 稔 (外1名)