JPH039876U - - Google Patents

Description

Translated fromJapanese

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

第１図は、本考案のボールペンペン先の通常時
における先端部の拡大断面図、第２図は本考案の
過大筆圧が加わつた時における同上断面図、第３
図はＡ−Ａ断面図、第４図は本考案のボールペン
の断面図。 １：書写用ボール、２：カシメ部、３：受座の
インク導溝、４：チツプ本体のインク誘導孔、５
：調節体の棒状突設部、６：調節体のインク溝ス
リツト、７：チツプ本体、８：受座、９：ボール
と受座との間隙、１０：チツプ本体と調節体との
形成する間隙、１１…ボールとカシメ部とが形成
する関隙、１２…調節体の胴部、１３：インク収
容管。 Fig. 1 is an enlarged cross-sectional view of the tip of the ballpoint pen nib of the present invention under normal conditions, Fig. 2 is a cross-sectional view of the same when excessive writing pressure is applied according to the present invention, and Fig. 3
The figure is a sectional view taken along the line A-A, and FIG. 4 is a sectional view of the ballpoint pen of the present invention. 1: Writing ball, 2: Caulking part, 3: Ink guide groove in catch seat, 4: Ink guide hole in tip body, 5
: Rod-like protruding part of the adjusting body, 6: Ink groove slit of the adjusting body, 7: Chip body, 8: catch seat, 9: Gap between the ball and the catch seat, 10: Gap formed between the chip body and the adjusting body , 11: A gap formed between the ball and the caulking portion, 12: Body portion of the adjusting body, 13: Ink storage tube.

Claims (1)

Translated fromJapanese

【実用新案登録請求の範囲】[Scope of utility model registration request] 回動可能にボールを先端部に抱持したボールペ
ンのペン先に関する、そのボール抱持孔に続くイ
ンク導入孔とチツプ本体内に後方開口端より嵌挿
される調節体において、ボールの受座が形成する
内接円径よりやや小さい径でボールの一部受座よ
りインク導入孔へ突出するボールの底部に接触す
る棒状突設部と、その基部から胴部へのテーパー
部に放射状にインキ供給のため付設された調節体
の中心部のインク導入孔と通じるスリツト状イン
ク溝とボールペンのペン先内孔部に嵌着のための
胴部本体とからなる構造を有し、この調節体の棒
状突設部の下方からの衝合によりボールはカシメ
部に発生した材料の弾性域内でのもどり分だけ受
座より浮き上がりカシメ部分に接合する。筆記す
る際のボールへの筆圧が衝合する棒状突設部に伝
わりテーパー部のスリツトの開きを可変とするこ
とによりインキの流出量を調節する構造を特徴と
するインク流出量調節機構を備えたボールペンの
ペン先。 Regarding the nib of a ballpoint pen that rotatably holds a ball at its tip, a seat for the ball is formed in the ink introduction hole following the ball holding hole and the adjustment body that is inserted into the tip body from the rear open end. A part of the ball with a diameter slightly smaller than the diameter of the inscribed circle that protrudes from the seat into the ink introduction hole and contacts the bottom of the ball, and a tapered part from the base to the body that supplies ink radially. It has a structure consisting of a slit-shaped ink groove that communicates with the ink introduction hole in the center of the adjustment body attached to the body, and a body body for fitting into the inner hole of the nib of a ballpoint pen. Due to the collision from below of the installation part, the ball rises from the catch by the amount of rebound within the elastic range of the material generated in the caulking part and joins to the caulking part. Equipped with an ink outflow adjustment mechanism characterized by a structure in which the pressure applied to the ball when writing is transmitted to the abutting bar-shaped protrusion, and the opening of the slit in the tapered part is made variable to adjust the ink outflow amount. The tip of a ballpoint pen.