JPH0331991U

JPH0331991U -

Info

Publication number: JPH0331991U
Application number: JP9156589U
Authority: JP
Priority date: 1989-08-03
Filing date: 1989-08-03
Publication date: 1991-03-28

Description

[Brief explanation of drawings]

第１図は本考案の付属部付きボールペンの分解
状態の断面図、第２図は同じく組立て状態の断面
図、第３図は同じく芯を出した状態の一部断面側
面図、第４図は同じく芯を後退させた状態の一部
断面側面図、第５図は芯構成体後部と円筒カムの
分解斜視図、第６図は芯構成体と円周カムの前進
状態での関係を示す斜視図、第７図は同じく後退
状態での関係を示す斜視図である。Ｂ……ボールペン部、Ａ……マーカーペン部、
２……キヤツプ、７……嵌合筒、１０……軸筒、
１１……芯構成体、１２……ボールペン芯、１３
……インキ収納芯体、１４……円筒フランジ、１
５……従動片、１６……嵌合ロツド、１８……先
端孔、１９……円筒カム、１９ｂ……フランジ部
、１９ｃ……カム縁、２１……前進カム縁部、２
２……斜縁部、２３……後退カム縁部、２６……
ばね。 Fig. 1 is a cross-sectional view of the ballpoint pen with an attached part of the present invention in an exploded state, Fig. 2 is a cross-sectional view of the same in an assembled state, Fig. 3 is a partially cross-sectional side view of the ballpoint pen with the lead exposed, and Fig. 4 is a cross-sectional view of the same in an assembled state. Similarly, a partially cross-sectional side view of the core in a retracted state, FIG. 5 is an exploded perspective view of the rear part of the core structure and the cylindrical cam, and FIG. 6 is a perspective view showing the relationship between the core structure and the circumferential cam in the forward state. 7 are perspective views showing the relationship in the retracted state. B...Ballpoint pen part, A...Marker pen part,
2... Cap, 7... Fitting tube, 10... Shaft tube,
11... Core structure, 12... Ballpoint pen core, 13
...Ink storage core, 14...Cylindrical flange, 1
5... Driven piece, 16... Fitting rod, 18... Tip hole, 19... Cylindrical cam, 19b... Flange portion, 19c... Cam edge, 21... Advance cam edge, 2
2... Beveled edge, 23... Backward cam edge, 26...
Spring.

Claims

[Scope of utility model registration request]

An ink storage core having a ballpoint pen core at the tip, a cam follower piece projecting radially outward from a part of the periphery of the rear end of the core, and a cam follower piece extending rearward from the rear end of the core integrally. It has a core structure consisting of a fitting rod protruding from the shaft, and a shaft cylinder for storing the core structure inside, and a cylindrical cam is integrated along the inner peripheral surface of the rear end of this shaft cylinder. The core structure has a distal end thereof facing the distal end hole of the shaft cylinder, a rear end of the fitting rod protrudes rearward from the rear end opening of the shaft cylinder, and a rear end of the core body faces the cylindrical cam. The cylindrical cam is rotatably inserted into the barrel in such a manner that it is slidably guided on the inner surface of the cylindrical cam, and the end surface of the cylindrical cam on the ballpoint pen core side is provided with a circumferential cam edge that acts on the cam follower; The cam edge includes, via a cam follower, a forward cam edge that presses the lead structure to an advanced position in which the ballpoint pen core protrudes from the tip hole of the barrel, and a forward cam edge that pushes the lead structure into the forward position where the ballpoint pen core retracts into the tip hole of the barrel. a retracting cam edge which allows the core structure to be biased by a spring such that the cam follower is pressed against the cam edge; A fitting cylinder formed in the above is removably friction-fitted, and by rotation of the attachment, the cam follower is engaged with the forward cam edge or the backward cam edge, and the ballpoint pen core is inserted through the tip hole of the barrel. It was configured so that it could be haunted,
A ballpoint pen with an attachment.