JPH01156992U

JPH01156992U -

Info

Publication number: JPH01156992U
Application number: JP5349488U
Authority: JP
Priority date: 1988-04-22
Filing date: 1988-04-22
Publication date: 1989-10-30

Description

[Brief explanation of the drawing]

図は本考案の一実施例を示したもので、第１図
は本考案の実施例を示す透視断面図、第２図はそ
のガイド筒の要部縦断面図、第３図は第２図のＤ
―Ｄ矢視図、第４図は同じくＣ―Ｃ矢視図、又、
第５図は第２図のＡ―Ａ断面図、第６図は同じく
Ｂ―Ｂ断面図、更に、第７図はガイド筒のボス部
の展開図に相当し円筒カムのツバ部との位置関係
を示す説明図である。１……ガイド筒、２……先軸、３……円筒カム
、４……キヤツプ、５，５ａ，５ｂ……摺動コマ
、６……シヤープペンシル筆記体、７ａ，７ｂ…
…ボールペン筆記体、８，８ａ，８ｂ……案内溝
、９……ボス部、１０……縦溝、１１……周溝、
１２……係合部、１３……溝、１４……リブ、１
５……カム斜面、１６……切欠、１７，１７ａ，
１７ｂ……リターンスプリング、１８……リター
ンスプリング、１９……芯パイプ、２０ａ，２０
ｂ……受け棒、２１……突起、２２……溝、２３
……突起、２４……クリツプ、２５……クリツプ
取付け部、２６……消しゴム止具、２７……消し
ゴム、２８……ノツクカバー、２９……ツバ部、
３０，３０ａ，３０ｂ……挿通孔、３１……段部
、３２……当接部、３３……筒部、３４……フラ
ンジ部、３５，３６……筒部、３７……リブ、３
８……係合部、３９……突起。 The figures show an embodiment of the present invention. Fig. 1 is a perspective sectional view showing the embodiment of the invention, Fig. 2 is a longitudinal sectional view of the main part of the guide tube, and Fig. 3 is the same as Fig. 2. D
-D arrow view, Figure 4 is also a C-C arrow view, and
Fig. 5 is a cross-sectional view taken along line AA in Fig. 2, Fig. 6 is a cross-sectional view taken along line B-B, and Fig. 7 is a developed view of the boss portion of the guide cylinder, and its position with respect to the collar portion of the cylindrical cam. It is an explanatory diagram showing a relationship. 1... Guide tube, 2... Tip shaft, 3... Cylindrical cam, 4... Cap, 5, 5a, 5b... Sliding piece, 6... Sharp pencil cursive, 7a, 7b...
... Ballpoint pen cursive, 8, 8a, 8b ... Guide groove, 9 ... Boss part, 10 ... Vertical groove, 11 ... Circumferential groove,
12... Engaging portion, 13... Groove, 14... Rib, 1
5...Cam slope, 16...Notch, 17, 17a,
17b... Return spring, 18... Return spring, 19... Core pipe, 20a, 20
b...Receiver rod, 21...Protrusion, 22...Groove, 23
... protrusion, 24 ... clip, 25 ... clip attachment part, 26 ... eraser stopper, 27 ... eraser, 28 ... knob cover, 29 ... collar part,
30, 30a, 30b...Insertion hole, 31...Step part, 32...Abutting part, 33...Cylinder part, 34...Flange part, 35, 36...Cylinder part, 37...Rib, 3
8...Engagement portion, 39...Protrusion.

Claims

[Scope of utility model registration request]

A guide tube with three guide grooves is arranged inside the tip shaft, and at least one is a sharp pencil.
A sliding piece is attached to the rear end of each writing body of the book, and each of these writing pieces is fitted into the guide groove of the guide tube so as to be movable in the axial direction, and a cam slope displacing in the axial direction is attached to the front end of the book. A cylindrical cam is provided in the shape of a cylindrical shape and has a rear end as a notch portion, and is movable in the axial direction with respect to the cap, and rotates integrally in the circumferential direction, and is attached with the notch portion protruding toward the rear of the cap. It is rotatable within a range of approximately 240° in the circumferential direction with respect to the tip shaft, and the cam slope of the cylindrical cam is brought into contact with the sliding piece of each writing font, and the collar provided on the cylindrical cam is connected to the rear end boss of the guide cylinder. By inserting the cap into the circumferential groove provided in the shaft, rotating the cap along with the cylindrical cam approximately 120 degrees with respect to the tip shaft, and blocking the collar from rotating at the stepped portion, sharp pencil cursive writing and other cursive writing can be read at the tip of the shaft. The cap can be selectively moved in and out, and an elastic body is positioned between the guide cylinder and the end face of the cap, so that the cap can move axially relative to the guide cylinder as appropriate, so that the collar part separates from the stepped part and is approximately 120 mm deep.
In a compound writing instrument that rotates and allows other writing bodies to appear and retract, the guide tube, tip, and cap are made of resin molding, and the guide tube is integrated with the engagement part of the tip and cap. A characteristic double writing instrument.