JP3083266B2 - Writing instrument tip - Google Patents

Writing instrument tip

Info

Publication number
JP3083266B2
JP3083266B2 JP09142069A JP14206997A JP3083266B2 JP 3083266 B2 JP3083266 B2 JP 3083266B2 JP 09142069 A JP09142069 A JP 09142069A JP 14206997 A JP14206997 A JP 14206997A JP 3083266 B2 JP3083266 B2 JP 3083266B2
Authority
JP
Japan
Prior art keywords
tank
tip
liquid tank
spring
transfer ball
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP09142069A
Other languages
Japanese (ja)
Other versions
JPH10329475A (en
Inventor
真一 石川
義彦 筑後
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zebra Co Ltd
Original Assignee
Zebra Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zebra Co Ltd filed Critical Zebra Co Ltd
Priority to JP09142069A priority Critical patent/JP3083266B2/en
Publication of JPH10329475A publication Critical patent/JPH10329475A/en
Application granted granted Critical
Publication of JP3083266B2 publication Critical patent/JP3083266B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明が属する技術分野】本発明は、ボールペン、或い
は塗布具等に使用される筆記具用チップに係り、特に先
端内部に回転可能に抱持させた転写ボールを、スプリン
グにて前方に付勢せしめて内向き先端縁に接触させ且つ
一部を先端から突出させてなる構造のチップに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing tool chip used for a ball-point pen or an applicator, and more particularly to a transfer ball held rotatably in the tip thereof by a spring. The present invention relates to a chip having a structure in which the tip is in contact with the inward leading edge and a part of the tip is projected from the leading edge.

【0002】[0002]

【従来の技術】従来、液タンクの先端開口に対するチッ
プの接続は、チップの後部に形成したタンク接続部を圧
入する手法にて行っているのが一般的である。例えば、
ボールペンのリフィールのように、合成樹脂材料からな
るチューブ状の液タンク(通称、インク収容管と称され
ている)の先端開口を外側に変形せしめながら圧入せし
めて該先端にチップのタンク接続部を接続している。然
るに、従来におけるチップと液タンクとの接続は圧入
力、つまり、液タンクの先端開口の内面とチップのタン
ク接続部の外面との圧接力(密着力)による保持構造で
ある(例えば、特開平7−276877号等参照)。
2. Description of the Related Art Conventionally, the connection of a chip to the opening of the tip of a liquid tank is generally performed by a method of press-fitting a tank connection formed at the rear of the chip. For example,
As ballpoint pen refill, synthetic tubular liquid tank made of a resin material (commonly known are referred to as ink containing tube) container chip connection to the tip of the distal end opening allowed pressed while allowed deformation outside the Parts are connected. However, the connection between the chip and the liquid tank in the related art is a pressure input, that is, a holding structure based on a press-contact force (adhesion force) between the inner surface of the front end opening of the liquid tank and the outer surface of the tank connecting portion of the chip (for example, 7-276877 etc.).

【0003】[0003]

【発明が解決しようとする課題】ところで、前述したボ
ールペンのリフィールの製法は液タンクの先端開口から
同内部にインクを充填した後に、同先端開口にチップを
接続し、然る後、遠心分離機に掛けてインクの充填時に
液タンク内に入り込んだエア抜きを行うものであるが、
このエア抜き時の遠心力によってチップが液タンクの先
端開口から抜け外れて脱落する虞れがあった。
By the way, in the above-mentioned method for manufacturing a ballpoint pen refill, after filling the inside of the liquid tank with ink from the front end opening, a chip is connected to the front end opening, and then the centrifugal separator is used. To remove the air that has entered the liquid tank when filling with ink.
Due to the centrifugal force at the time of bleeding the air, there is a possibility that the chip may come off the tip end opening of the liquid tank and fall off.

【0004】そこで、本願出願人はこのような問題点に
鑑み、その原因を追及すべく数々の研究を重ねてきた結
果、その原因の一つ目としてチップの接続時に液タンク
の内面に付着していたインクが圧接する液タンクとチッ
プとの両者接続間に取り除かれずに該両者接続間に残留
し、この残留するインクが該両者接続間の圧接力(密着
力)を低下させる潤滑剤として作用すること、二つ目と
してチップを接続する場合に金属材料からなるチップと
合成樹脂材料からなる液タンクとの材質の違い関係等か
ら芯ズレが生じ易い等の原因に着目し、本発明に至った
ものであり、その目的とする処は、インクの残留による
前記両者接続間の圧接力(密着力)の低下や該接続間に
芯ズレ等が生じていても液タンクから脱落する虞れがな
い該液タンクとの係止構造を備え、しかも、この係止構
造を形成する加工を施す事によって転写ボールを付勢す
るスプリングを内在保持するその保持構造を同時に形成
し得るようにした筆記具用チップを提供することにあ
る。
[0004] In view of such problems, the applicant of the present invention has conducted a number of studies in pursuit of the causes. One of the causes is that the liquid adhered to the inner surface of the liquid tank when the chips were connected. The remaining ink is not removed between the two connections of the liquid tank and the chip to be pressed and remains between the two connections, and the remaining ink acts as a lubricant to reduce the pressure contact (adhesion) between the two connections. Second, when connecting the chips, focusing on the cause of misalignment or the like due to the material difference between the chip made of a metal material and the liquid tank made of a synthetic resin material, etc. The purpose is to reduce the pressure contact force (adhesion force) between the two connections due to the residual ink and to drop from the liquid tank even if there is misalignment between the connections. Not with the liquid tank It is another object of the present invention to provide a writing instrument chip having a locking structure and capable of simultaneously forming a retaining structure for internally retaining a spring for urging a transfer ball by performing processing for forming the locking structure. .

【0005】[0005]

【課題を達成するための手段】課題を達成するために本
発明の請求項1は、液タンクの先端に圧入にて接続され
るチップ本体の先端内部に転写ボールを回転可能に抱持
させ、該転写ボールをスプリングにて前方に付勢せしめ
て内向き先端縁に接触させてなる筆記具用チップに於い
て、チップ本体のタンク接続部にカシメ部を設け、該カ
シメ部が、タンク接続部の外面において液タンクの先端
開口の内面を該液タンクの変形により嵌合係止させるタ
ンク係止凹部と、タンク接続部の内面においてスプリン
グの後端を係止するバネ係止凸部とでなる事を特徴とす
る。又、カシメ部が、タンク接続部の周方向数カ所又は
環状に形成されている事である。斯る技術的手段によれ
ば、チップ本体内に、その後端開口から転写ボールを前
方に付勢するスプリングを組み込み内在させることで、
その後端をタンク接続部の内面において突出するバネ係
止凸部に係止された状態でスプリングを内在保持させる
事ができる。そして、チップ本体のタンク接続部を液タ
ンクの先端開口に圧入すると、該タンク接続部に設けた
カシメ部のタンク係止凹部に液タンクの先端開口の内面
が嵌合係止される。それにより、液タンクとチップ本体
との接続が両者接続間の圧入による圧接力(密着力)に
加えて液タンクのタンク係止凹部に対する嵌合係止力に
て図られる。また、請求項2では、液タンクの先端に圧
入にて接続されるチップ本体の先端内部に転写ボールを
回転可能に抱持させ、該転写ボールをスプリングにて前
方に付勢せしめて内向き先端縁に接触させてなる筆記具
用チップに於いて、チップ本体のタンク接続部にカシメ
部を設け、該カシメ部が、タンク接続部の外面において
液タンクの先端開口の内面の嵌合凸部を嵌合係止させる
タンク係止凹部と、タンク接続部の内面においてスプリ
ングの後端を係止するバネ係止凸部とを有する事を特徴
とする。
According to a first aspect of the present invention, a transfer ball is rotatably held inside a tip end of a chip body connected by press-fitting to a tip end of a liquid tank. In a writing instrument chip in which the transfer ball is urged forward by a spring and brought into contact with the inward leading edge, a caulking portion is provided at a tank connecting portion of the chip body, and the caulking portion is formed at the tank connecting portion. The tip of the liquid tank on the outside
A tab for fitting and locking the inner surface of the opening by deformation of the liquid tank.
Spring on the inner surface of the tank connection
And a spring locking projection that locks the rear end of the
You. Further, the caulking portion is formed at several places in the circumferential direction of the tank connecting portion or in an annular shape. According to such a technical means, by incorporating a spring for urging the transfer ball forward from the rear end opening inside the chip body,
The spring can be held internally while the rear end is locked by a spring locking projection projecting from the inner surface of the tank connection portion. Then, when the tank connecting portion of the chip body is pressed into the front end opening of the liquid tank, the inner surface of the front end opening of the liquid tank is fitted and locked in the tank locking concave portion of the caulking portion provided in the tank connecting portion. Thus, the connection between the liquid tank and the chip body is achieved by the fitting and locking force of the liquid tank with respect to the tank locking recess in addition to the press-contact force (adhesion) due to press-fitting between the two connections. In the second aspect, a pressure is applied to the tip of the liquid tank.
Transfer ball inside the tip of the chip body
Hold the transfer ball with a spring
Writing instrument that is urged in the direction to contact the inward leading edge
Caulking on the tank connection of the chip body
Part is provided, and the caulking part is formed on the outer surface of the tank connection part.
Fits and locks the fitting projection on the inner surface of the tip opening of the liquid tank
Split the tank locking recess and the inner surface of the tank connection.
And a spring locking projection that locks the rear end of the ring
And

【0006】[0006]

【発明の実施の形態】本発明の実施の具体例を図面に基
づいて説明する。図面はボールペンのリフィールの例を
示し、チップ本体1は金属等から形成され、その後部の
タンク接続部1-2 を、変形に富んだ合成樹脂材料からな
るチューブ状の液タンク2(通称、インク収容管と称さ
れている)の先端開口に圧入により接続せしめて、該液
タンク2からインクMが液通路1-3 に導入され、この液
通路1-3 を流動させて先端内部に回転可能に抱持されて
いる転写ボール3へと供給される周知の構造を呈する。
又、液通路1-3 には転写ボール3を前方へ所要の弾発力
にて付勢せしめて内向き先端縁1-1 に接触させるスプリ
ング4を同軸状に内在してなる。即ち、転写ボール3を
内向き先端縁1-1 に所要の弾発力にて接触させて、転写
ボール3と内向き先端縁1-1 とで弁構造を構成し、不使
用時にインクMが不用意に吐出するのを防ぐようになっ
ている。そして、チップ本体1のタンク接続部1-2 には
カシメ部5を設けてなる。
Embodiments of the present invention will be described with reference to the drawings. The drawings illustrate examples of ballpoint pen refill, the chip body 1 is formed from a metal or the like, a tank connection portion 1-2 of the rear rich deformation synthetic resin material consisting of a tube-like liquid tank 2 (aka, Ink M is introduced into the liquid passage 1-3 from the liquid tank 2 by press-fitting, and the liquid M is introduced into the liquid passage 1-3, and the ink M is rotated into the inside of the front end. It has a well-known structure that is supplied to a transfer ball 3 that is held as possible.
In the liquid passage 1-3, a spring 4 for urging the transfer ball 3 forward with a required elastic force and making contact with the inward leading edge 1-1 is coaxially provided. That is, the transfer ball 3 is brought into contact with the inward leading edge 1-1 with a required resilient force to form a valve structure with the transfer ball 3 and the inward leading edge 1-1. Inadvertent ejection is prevented. A caulking portion 5 is provided in the tank connecting portion 1-2 of the chip body 1.

【0007】カシメ部5は、チップ本体1のタンク接続
部1-2 の根元近傍におけるその周方向に、外部からのカ
シメ加工により数か所又は環状に形成され、タンク接続
部1-2 の内面においてスプリング4が脱落しないように
その後端を衝合係止せしめるバネ係止凸部5-1 を備え、
そして、タンク接続部1-2 の外面においては液タンク2
の先端開口から抜け外れないように該先端開口の内面を
嵌合係止させるタンク係止凹部5-2 を備えてなる。
The caulking portion 5 is formed in several places or in an annular shape in the circumferential direction near the base of the tank connecting portion 1-2 of the chip body 1 by external caulking, and the inner surface of the tank connecting portion 1-2 is formed. And a spring engagement projection 5-1 for abutment engagement of the rear end of the spring 4 so that the spring 4 does not fall off.
Then, the liquid tank 2 is provided on the outer surface of the tank connection portion 1-2.
And a tank locking recess 5-2 for fitting and locking the inner surface of the tip opening so as not to come off from the tip opening.

【0008】因みに、スプリング4はその前端側にチッ
プ本体1の軸芯に沿わせて直線的に形成した棒状の押し
子4-1 を一体に備え、この押し子4-1 の先端を転写ボー
ル3が抱持されているボールハウス6に連通する液誘導
孔7を遊挿させてその先端を転写ボール3に衝合当接さ
せた状態で該転写ボール3を所要の弾発力にて付勢する
ようになっている。そして、押し子4-1 が突出するその
螺旋前部4-2 とバネ係止凸部5-1 に衝合係止させる螺旋
後部4-3 とのバネ線条同士を密着させた筒状形態とし、
この螺旋前後部4-2 ,4-3 間においては筆圧で撓む程度
の質量の弾発力が付与されるように所要の螺旋ピッチと
してなる。
Incidentally, the spring 4 is integrally provided with a rod-shaped pusher 4-1 linearly formed along the axis of the chip body 1 at the front end thereof, and the tip of the pusher 4-1 is transferred to a transfer ball. The transfer ball 3 is attached with a required elastic force in a state where the liquid guide hole 7 communicating with the ball house 6 in which the transfer ball 3 is held is loosely inserted and its tip is brought into contact with the transfer ball 3. It is going to take off. A cylindrical form in which the spring filaments of the spiral front part 4-2 from which the pusher 4-1 protrudes and the spiral rear part 4-3 for abutting and locking to the spring locking convex part 5-1 are brought into close contact with each other. age,
A required spiral pitch is provided between the spiral front and rear portions 4-2 and 4-3 so that a resilient force having a mass that is deflected by writing pressure is applied.

【0009】而して、転写ボール3を前方に付勢するス
プリング4をチップ本体1の後端開口から液通路1-3 に
組み込み内在させることでその螺旋後部4-3 は液通路1-
3 の路壁に突出するカシメ部5のバネ係止凸部5-1 に衝
合係止されて、スプリング4を脱落しないようにチップ
本体1の液通路1-3 に内在保持させる事ができる(図2
の状態)。そして、液タンク2にインクMを充填した後
に、その先端開口にチップ本体1のタンク接続部1-2 を
圧入すると、該タンク接続部1-2 に設けたカシメ部5の
タンク係止凹部5-2 に液タンク2の先端開口の内面が変
形により嵌合係止される(図1の状態)。それにより、
液タンク2とチップ本体1との接続がその先端開口の内
面と圧接力(密着力)に加えてタンク係止凹部5-2 に対
する液タンク2の内面の嵌合係止力により図られること
から、仮に液タンク2に対するチップ本体1の接続時に
その両者接続間にインクMが残留し、この残留するイン
クMにより該両者接続間の圧接力(密着力)が低下した
としても、或いは前記両者接続間に芯ズレ等が生じてい
てもチップ本体1が液タンク2の先端開口から抜け外れ
て脱落する事はない。尚、カシメ部5のタンク接続部1-
2 への加工はチップ本体1内にスプリング4を組み込み
内在させた後に行うも良く、自由である。
A spring 4 for urging the transfer ball 3 forward is incorporated into the liquid passage 1-3 from the rear end opening of the chip body 1 so that the spiral rear part 4-3 is formed in the liquid passage 1-3.
3 is abutted and locked by the spring locking projection 5-1 of the caulking portion 5 protruding from the road wall, so that the spring 4 can be retained inside the liquid passage 1-3 of the chip body 1 so as not to fall off. (Figure 2
State). Then, after filling the liquid tank 2 with the ink M, the tank connecting portion 1-2 of the chip body 1 is press-fitted into the opening at the tip thereof, and the tank engaging recess 5 of the caulking portion 5 provided in the tank connecting portion 1-2 is formed. At -2, the inner surface of the front end opening of the liquid tank 2 is fitted and locked by deformation (the state of FIG. 1). Thereby,
The connection between the liquid tank 2 and the chip body 1 is established by the fitting and locking force of the inner surface of the liquid tank 2 to the tank locking recess 5-2 in addition to the press contact force (adhesion force) with the inner surface of the tip opening. Even if the ink M remains between the chip body 1 and the liquid tank 2 when the chip body 1 is connected to the liquid tank 2 and the residual ink M lowers the pressure contact force (adhesion force) between the two connections, Even if there is a misalignment between them, the chip body 1 does not come off the tip end opening of the liquid tank 2 and fall off. The caulking portion 5 has a tank connection portion 1-
The processing into 2 may be performed after the spring 4 is built into the chip main body 1 and made to be internal.

【0010】図3は他の実施例を示し、斯る実施例にお
いてはカシメ部5のタンク係止凹部5-2 に嵌合係止させ
る嵌合凸部8を、液タンク2の先端開口の内面に形成せ
しめて、該先端開口へのチップ本体1のタンク接続部1-
2 の圧入によりその外面のタンク係止凹部5-2 と液タン
ク2の嵌合凸部8とが互いに嵌合係止するように形成し
てなるものである。
FIG. 3 shows another embodiment. In this embodiment, a fitting projection 8 fitted and locked in the tank locking recess 5-2 of the caulking portion 5 is provided at the front end opening of the liquid tank 2. It is formed on the inner surface, and the tank connecting portion 1- of the chip body 1 is connected to the tip opening.
2 is formed so that the tank locking recess 5-2 on the outer surface thereof and the fitting projection 8 of the liquid tank 2 are fitted and locked to each other by press-fitting.

【0011】尚、上記した実施例においてはボールペン
のリフィールの例を詳述したが、化粧液や粘度が比較的
に高い造膜性塗布液を塗布する塗布具等においても本発
明は対象としていることは言うまでもない。つまり、チ
ップ本体1の先端内部に転写ボール3を回転可能に抱持
させ、該転写ボール3をスプリング4にて前方に付勢せ
しめて内向き先端縁1-1 に接触させて、転写ボール3と
内向き先端縁1-1 とで弁構造を構成し、不使用時にイン
クMが不用意に吐出するのを防ぐ構造を有する全てのチ
ップを対象としているものである。
In the above-mentioned embodiment, the example of refill of a ball-point pen has been described in detail. However, the present invention is also applicable to an applicator for applying a cosmetic liquid or a film-forming coating liquid having a relatively high viscosity. Needless to say. That is, the transfer ball 3 is rotatably held inside the tip of the chip body 1, and the transfer ball 3 is urged forward by the spring 4 so as to come into contact with the inward leading edge 1-1. And the inward leading edge 1-1 is intended for all chips having a structure for preventing the ink M from being inadvertently ejected when not in use.

【0012】[0012]

【発明の効果】本発明の筆記具用チップは叙上の如く構
成してなるから、下記の作用効果を奏する。チップ本体
内に、その後端開口から転写ボールを前方に付勢するス
プリングを組み込み内在させることで、その後端をタン
ク接続部に設けたカシメ部のバネ係止凸部に衝合係止さ
せた状態でスプリングを内在保持させる事ができる。そ
して、チップ本体のタンク接続部を液タンクの先端開口
に圧入すると、該タンク接続部に設けたカシメ部のタン
ク係止凹部に液タンクの先端開口の内面が嵌合係止され
る。それにより、液タンクとチップ本体との接続が接続
両者間の圧入による圧接力(密着力)に加えてタンク係
止凹部に対する液タンクの内面の嵌合係止力にて図られ
る。
Since the writing instrument tip of the present invention is constructed as described above, the following effects are obtained. A state in which a spring that urges the transfer ball forward from the rear end opening is built into the chip body, and the rear end is abutted and locked to the spring locking convex part of the caulking part provided in the tank connection part. The spring can be held internally. Then, when the tank connecting portion of the chip body is pressed into the front end opening of the liquid tank, the inner surface of the front end opening of the liquid tank is fitted and locked in the tank locking concave portion of the caulking portion provided in the tank connecting portion. Thus, the connection between the liquid tank and the chip main body is achieved by the fitting and locking force of the inner surface of the liquid tank with respect to the tank locking recess in addition to the press-contact force (adhesion) due to press-fitting between the two.

【0013】従って、本発明の筆記具用チップによれ
ば、液タンクに対するチップ本体の接続時にその両者接
続間にインクが残留し、この残留するインクにより該両
者接続間の圧接力(密着力)が低下したとしても、或い
は前記両者接続間に芯ズレ等が生じていてもチップ本体
が液タンクの先端開口から抜け外れて脱落する事はな
い。しかも、チップ本体の脱落を防ぐタンク係止凹部と
転写ボールを付勢するスプリングが脱落しないように内
在保持するバネ係止凸部とを同時に形成し得るようにし
てなることから、生産性においても優れた効果が期待で
きる。
Therefore, according to the writing instrument tip of the present invention, when the tip body is connected to the liquid tank, ink remains between the two connections, and the remaining ink causes a pressure contact (adhesion) between the two connections. Even if it is lowered, or even if there is a misalignment between the two connections, the chip body does not come off the tip opening of the liquid tank and fall off. In addition, since the tank locking concave portion for preventing the chip body from dropping and the spring locking convex portion for internally retaining the spring for biasing the transfer ball so as not to fall off can be formed at the same time, the productivity is also improved. Excellent effect can be expected.

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

【図1】 ボールペンのリフィールの例を示した本発明
筆記具用チップの縦断面図
FIG. 1 is a longitudinal sectional view of a writing instrument tip according to the present invention showing an example of a refill of a ballpoint pen.

【図2】 チップ本体を液タンクに接続する前の状態を
示した同縦断面図
FIG. 2 is a longitudinal sectional view showing a state before a chip body is connected to a liquid tank.

【図3】 チップ本体を液タンクに接続する前の他の実
施例を示した同縦断面図
FIG. 3 is a longitudinal sectional view showing another embodiment before connecting the chip body to the liquid tank.

【符号の説明】[Explanation of symbols]

1…チップ本体 1-1 …内向
き先端縁 1-2 …タンク接続部 2…液
タンク 3…転写ボール 4…スプ
リング 5…カシメ部 5-1 …バネ
係止凸部 5-2 …タンク係止凹部
DESCRIPTION OF SYMBOLS 1 ... Tip body 1-1 ... Inward front edge 1-2 ... Tank connection part 2 ... Liquid tank 3 ... Transfer ball 4 ... Spring 5 ... Crimping part 5-1 ... Spring locking convex part 5-2 ... Tank locking Recess

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) B43K 1/08 B43L 19/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) B43K 1/08 B43L 19/00

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 液タンクの先端に圧入にて接続されるチ
ップ本体の先端内部に転写ボールを回転可能に抱持さ
せ、該転写ボールをスプリングにて前方に付勢せしめて
内向き先端縁に接触させてなる筆記具用チップに於い
て、 チップ本体のタンク接続部にカシメ部を設け、該カシメ
部が、タンク接続部の外面において液タンクの先端開口
の内面を該液タンクの変形により嵌合係止させるタンク
係止凹部と、タンク接続部の内面においてスプリングの
後端を係止するバネ係止凸部とでなる事を特徴とする筆
記具用チップ。
1. A transfer ball is rotatably held inside a tip of a chip body connected by press-fitting to a tip of a liquid tank, and the transfer ball is urged forward by a spring to form an inward leading edge. In the writing instrument tip that is brought into contact, a caulking portion is provided at the tank connection portion of the tip body, and the caulking portion is opened at the outer surface of the tank connection portion at the tip end of the liquid tank.
Tank for fitting and locking the inner surface of the liquid tank by deformation of the liquid tank
The locking recess and the inner surface of the tank connection
A writing instrument tip comprising a spring engaging projection for engaging a rear end .
【請求項2】 液タンクの先端に圧入にて接続されるチ2. A press-fit connection to a tip of a liquid tank.
ップ本体の先端内部に転写ボールを回転可能に抱持さThe transfer ball is rotatably held inside the tip of the
せ、該転写ボールをスプリングにて前方に付勢せしめてAnd urge the transfer ball forward with a spring.
内向き先端縁に接触させてなる筆記具用チップに於いIn the writing instrument tip contacting the inward edge
て、hand, チップ本体のタンク接続部にカシメ部を設け、該カシメA caulking part is provided at the tank connection part of the chip body, and the caulking
部が、タンク接続部の外面において液タンクの先端開口Is the opening of the tip of the liquid tank on the outer surface of the tank connection.
の内面の嵌合凸部を嵌合係止させるタンク係止凹部と、A tank locking recess for fittingly locking the fitting projection on the inner surface of the
タンク接続部の内面においてスプリングの後端を係止すLock the rear end of the spring on the inner surface of the tank connection
るバネ係止凸部とを有する事を特徴とする筆記具用チッA writing tool tip having a spring engaging projection
プ。H.
JP09142069A 1997-05-30 1997-05-30 Writing instrument tip Expired - Lifetime JP3083266B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP09142069A JP3083266B2 (en) 1997-05-30 1997-05-30 Writing instrument tip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09142069A JP3083266B2 (en) 1997-05-30 1997-05-30 Writing instrument tip

Publications (2)

Publication Number Publication Date
JPH10329475A JPH10329475A (en) 1998-12-15
JP3083266B2 true JP3083266B2 (en) 2000-09-04

Family

ID=15306714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP09142069A Expired - Lifetime JP3083266B2 (en) 1997-05-30 1997-05-30 Writing instrument tip

Country Status (1)

Country Link
JP (1) JP3083266B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149399A (en) * 2008-12-25 2010-07-08 Zebra Pen Corp Ball-point pen chip

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4798777B2 (en) * 2006-03-30 2011-10-19 三菱鉛筆株式会社 Ballpoint pen
JP4878217B2 (en) * 2006-05-29 2012-02-15 三菱鉛筆株式会社 Ballpoint pen tip and ballpoint pen refill
JP4311684B2 (en) 2006-09-01 2009-08-12 三菱鉛筆株式会社 Ballpoint pen tip and ink refill
JP4906104B2 (en) * 2007-08-01 2012-03-28 三菱鉛筆株式会社 Ballpoint pen refill
JP5271057B2 (en) * 2008-11-28 2013-08-21 ゼブラ株式会社 Ballpoint pen tip
JP7407575B2 (en) * 2019-12-02 2024-01-04 三菱鉛筆株式会社 Ballpoint pen tips and ballpoint pens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010149399A (en) * 2008-12-25 2010-07-08 Zebra Pen Corp Ball-point pen chip

Also Published As

Publication number Publication date
JPH10329475A (en) 1998-12-15

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