The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 2006
Filed:
May. 13, 2005
Tadashi Yamamoto, Sakado, JP;
Tadashi Yamamoto, Sakado, JP;
Kotobuki & Co., Ltd., Kawagoe, JP;
Abstract
A composite writing utensil for housing a plurality of writing members, at least one of which is a propelling pencil writing member, comprises a front shaft, a rear shaft which is rotatable relative to the front shaft, and a guide shaft for guiding the writing member in the back-and-forth direction. An annular engaging stepped portion projecting in the direction of inner diameter is formed on an inner peripheral surface of the rear shaft, and a plurality of engaging pieces formed at the rear end portion of the guide shaft to pass through an inner diameter-side hollow portion defined by the annular engaging stepped portion of the rear shaft and to be engaged with the engaging stepped portion of the rear shaft. A lead guiding member rotatable relative to the rear shaft is disposed between the plurality of the engaging pieces. The lead guiding member includes a lead guiding portion which further extends forward and communicates to an aperture at the rear end of the lead case of the propelling pencil writing member, and is formed with a plurality of concave portions on its peripheral surface to be fitted with the plurality of the engaging pieces.