BALL-POINT PEN TIP AND METHOD FOR MANUFACTURE THEREOF

PROBLEM TO BE SOLVED: To provide a ball-point pen tip which prevents the feel of catch occurring during writing with the ball-point pen, especially a feel of catch which is apt to occur when the ball diameter is small. SOLUTION: A contour line, in the longitudinal section, of a point where the outsi...

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Bibliographic Details
Main Author NAKATANI YASUNORI
Format Patent
LanguageEnglish
Published 30.09.2003
Edition7
Subjects
BUREAU ACCESSORIES
IMPLEMENTS FOR WRITING OR DRAWING
PERFORMING OPERATIONS
TRANSPORTING
WRITING OR DRAWING IMPLEMENTS
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Summary:PROBLEM TO BE SOLVED: To provide a ball-point pen tip which prevents the feel of catch occurring during writing with the ball-point pen, especially a feel of catch which is apt to occur when the ball diameter is small. SOLUTION: A contour line, in the longitudinal section, of a point where the outside of a housing of the ball-point pen tip comes into contact with a plane for writing when the ball-point pen is tilted, is curved or straight-line or polygonal at more than 150°. In addition, the contour line, in the longitudinal section, of the housing on the tip side beyond said contact point, is curved or straight-line or polygonal at more than 150°. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20020082907