JPS5872085U - ballpoint pen - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示すボールペンの要部断面
図、第２図は第１図の■−■線に沿う拡大断面図、第３
図は第１図の■−■線に沿う拡大断面図、第４図は第１
図のＩＶ−ＩＶ線に沿う拡大断面図、第５図は本考案の
他の実施例を示すボールペンの要部断面図である。 １・・・合成樹脂製のホルダ、２・・・インキ導入穴、
６・・・小口径筒状部（筒状部）、８・・・ステンレス
細管（金属細管）、９・・・第１の小孔、１０・・・合
成樹脂製のボール受は部、１１・・・合成樹脂製の筒状
連結体、１２・・・合成樹脂製の架橋体、１３・・・イ
ンキ流通穴、１４・・・第２の小孔、１５・・・突起部
、１７−・・・ボール。Fig. 1 is a sectional view of the main parts of a ballpoint pen showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is an enlarged sectional view taken along the line
The figure is an enlarged sectional view taken along the line ■-■ of Figure 1, and Figure 4 is an enlarged cross-sectional view of
FIG. 5 is an enlarged cross-sectional view taken along the line IV--IV in the figure, and FIG. 5 is a cross-sectional view of essential parts of a ballpoint pen showing another embodiment of the present invention. 1... Synthetic resin holder, 2... Ink introduction hole,
6... Small diameter cylindrical part (cylindrical part), 8... Stainless steel capillary tube (metal capillary tube), 9... First small hole, 10... Synthetic resin ball holder part, 11 ... Cylindrical connecting body made of synthetic resin, 12... Crosslinked body made of synthetic resin, 13... Ink circulation hole, 14... Second small hole, 15... Protrusion, 17- ···ball.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] インキ導入穴を有する合成樹脂製のホルダと、このホル
ダの筒状部に先端側が所定長さ突出するように挿着され
た金属細管と、前記筒状部の先端付近で覆われた前記金
属細管の側壁部分に穿設された少なくとも１つ以上の第
１の小孔と、前記金属細管の先端部近傍の内部に埋設さ
れた合成樹脂製のボール受は部と、前記金属細管内に埋
設され、一端が前記ボール受は部の後面に一体化される
と共に他端側面が前記第１の小孔を有して前記筒状部と
一体化された内部に空洞孔を有する合成樹脂製の連結体
と、前記ボール受は部に金属細管の軸方向に貫通された
インキ流通穴と、前記金属細管の後端側の側壁部分に穿
設された少な（とも１つ以上の第２の小孔と、前記筒状
部の内側面に一体的に設けられ該第２の小孔内に突出す
る合成樹脂製の突起部と、前記金属細管の先端部に該細
管及び前記ボール受は部により回転自在に抱持されたボ
ールとを具備したことを特徴とするボールペン。a holder made of synthetic resin having an ink introduction hole; a thin metal tube inserted into a cylindrical portion of the holder so that its tip side protrudes a predetermined length; and the thin metal tube covered near the tip of the cylindrical portion. at least one first small hole drilled in a side wall portion of the metal tube; a synthetic resin ball receiver buried inside near the tip of the metal tube; a connection made of synthetic resin, one end of which is integrated with the rear surface of the ball receiver, and the other end of which has a hollow hole inside and is integrated with the first small hole and the cylindrical portion; The body and the ball receiver have an ink flow hole penetrated in the axial direction of the metal capillary tube, and a small (both one or more) second small hole drilled in the side wall portion on the rear end side of the metal capillary tube. a protrusion made of synthetic resin that is integrally provided on the inner surface of the cylindrical portion and projects into the second small hole; A ballpoint pen characterized by comprising a freely held ball.