JPH0414079B2 - - Google Patents

Description

【発明の詳細な説明】 この発明は、筆記部材の筆記部を収納状態にお
いたとき筆記部を自動的に良好にシールするよう
にした、筆記具に関する。この発明は、たとえば
万年筆、サインペン、ボールペン等の筆記具に適
用できるが、特にサインペン、水性ボールペンの
ような筆記具に適用した場合に、最大の効果を発
揮するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a writing instrument in which a writing part of a writing member is automatically and well sealed when the writing part is placed in a stored state. The present invention can be applied to writing implements such as fountain pens, felt-tip pens, and ballpoint pens, but is most effective when applied to writing implements such as felt-tip pens and water-based ballpoint pens.

内部に筆記部材を収納した摺動筒の先端付近内
部にシールキヤツプを配置しておいて、シールキ
ヤツプを筆記部材の先端にはめてシール状態にし
たり、シールキヤツプを筆記部材先端から外して
筆記部材先端を摺動筒の先端開口部から突出させ
て筆記状態にしたりする筆記具については、この
出願の出願人がすでにいろいろと出願をしている
（特願昭56−102238号（特開昭58−5299号）、特願
昭56−137779号（特開昭58−39499号）、実願昭56
−167110号（実公昭62−27425号）、実願昭57−
55014号（実公昭62−27426号））。ところで、これ
らのものはほとんど筆記部材の先端部の位置でシ
ールするようになつているので、筆記部材の内部
と外部とを連通させるための空気孔等は筆記部材
の先端位置に設けなければならかつた。このた
め、筆記部材として空気孔等を先端位置に設けた
特別のものを用意しなければならなくなるし、そ
うしたものは作りにくいだけでなくコストも高く
つくものとなり、もつと作りやすく安価な筆記部
材を使用できないおそれがあつた。 A seal cap is placed inside near the tip of the sliding tube that houses the writing member inside, and the seal cap can be placed on the tip of the writing member to create a seal, or the seal cap can be removed from the tip of the writing member to remove the writing member. The applicant of this application has already filed various applications for writing instruments whose tip protrudes from the opening at the tip of a sliding tube for writing purposes (Japanese Patent Application No. 102238/1983). 5299), Japanese Patent Application No. 137779 (Sho 56-137779) (Japanese Unexamined Patent Publication No. 58-39499), Utility Application No. 1983
−167110 (Jitko No. 62-27425), Jitsugan No. 1983-
No. 55014 (Jitko No. 62-27426)). By the way, most of these devices are designed to seal at the tip of the writing member, so an air hole or the like must be provided at the tip of the writing member to communicate the inside and outside of the writing member. It was. For this reason, it is necessary to prepare a special writing member with air holes etc. at the tip position, and such a writing member is not only difficult to make but also expensive, whereas a writing member that is easy to make and inexpensive There was a risk that the product could not be used.

この発明は、一般に市販されている筆記部材又
はそれに近いものを利用できるようにした、この
種筆記具を提供することを目的とする。 An object of the present invention is to provide a writing instrument of this kind that can use a writing member that is generally available on the market or something similar to it.

つぎに、この発明の構成を図面を参照しながら
説明する。 Next, the configuration of the present invention will be explained with reference to the drawings.

第１図は、この発明の第１実施態様を示す断面
図である。１は円筒状をした軸筒である。軸筒１
の後方寄り内部に、内方へ向けて２本の脚２，２
を対向させて形成し、２本の脚２，２の内端に円
筒体３を取付けている。 FIG. 1 is a sectional view showing a first embodiment of the invention. 1 is a cylindrical shaft tube. Shaft tube 1
Two legs 2, 2 facing inward inside the rear
are formed to face each other, and a cylindrical body 3 is attached to the inner ends of the two legs 2, 2.

別体の摺動筒４を用意するが、摺動筒４は軸筒
１内にちようどはまる大きさをした円筒状をして
おり、後方から対向した位置に２本のスリツト
５，５を入れている。それらスリツト５，５に脚
２，２を通しながら軸筒１内に前方から摺動筒４
をはめる。そして、別体の筆記部材６の後端中央
に後方からくぼみ７を設けておいて、摺動筒４の
前方から筆記部材６を挿入して筆記部材６のくぼ
み７に円筒体３の前方部分をはめ込んで、軸筒１
と筆記部材６とを連結している。筆記部材６の前
方位置には、筆記部材６の内部と外部とを連通さ
せる空気孔８を設け、また筆記部材６の前方部分
は小径部９とし、小径部９の先端に筆記部１０を
形成している。 A separate sliding tube 4 is prepared, and the sliding tube 4 has a cylindrical shape that is sized to fit inside the shaft tube 1, and has two slits 5, 5 at opposing positions from the rear. is included. The sliding tube 4 is inserted into the shaft tube 1 from the front while passing the legs 2, 2 through the slits 5, 5.
Put on. Then, a recess 7 is provided from the rear at the center of the rear end of the separate writing member 6, and the writing member 6 is inserted from the front of the sliding tube 4 into the recess 7 of the writing member 6 in the front part of the cylindrical body 3. Insert the shaft cylinder 1
and the writing member 6 are connected. An air hole 8 is provided in the front position of the writing member 6 to communicate the inside and outside of the writing member 6, and the front part of the writing member 6 is a small diameter part 9, and a writing part 10 is formed at the tip of the small diameter part 9. are doing.

別体の口金１１を用意するが、口金１１は摺動
筒４の前方に螺合して連結し、摺動筒４の１部を
構成させるものである。口金１１の前方部分は先
細り状に形成して先端には透通孔１２を形成して
いる。口金１１の内部には透通孔１２の後方に段
部１３を形成し、段部１３に当ててシールリング
１４を取付けている。そして、口金１１内には透
通孔１２へ向けて先細り状に形成した収納室１５
を形成しているが、収納室１５内にはキヤツプ体
１６を収納している。キヤツプ体１６が収納室１
５内で前進したときは、キヤツプ体１６の前面が
シールリング１４に密着して透通孔１２をふさい
でシールするようにしている。キヤツプ体１６の
中央には後方から小さい孔をあけて、筆記部材６
の筆記部１０を収納するための収納孔１７とし、
収納孔１７の後方に段部１８を設けて段部１８よ
り後方をやや直径の大きな孔としている。その孔
内にゴムなどの弾性材で製作した保持片１９をは
めて取付けている。第１図の−線拡大断面図
である第２図が示すように、保持片１９はリング
状をしていて内方へ向けて４つの突片を形成した
ものである。このようにしたため、収納孔１７の
内部とキヤツプ体１６の外部とは、保持片１９の
〓間を介して連通することとなる。上記収納孔１
７と収納孔１７の後方のやや大径の孔との間は、
たとえば段部１８に溝や切欠き等を設けて連通さ
せてもよい。 A separate cap 11 is prepared, and the cap 11 is screwed and connected to the front of the sliding tube 4 and constitutes a part of the sliding tube 4. The front part of the base 11 is formed into a tapered shape, and a through hole 12 is formed at the tip. Inside the cap 11, a step 13 is formed behind the through hole 12, and a seal ring 14 is mounted against the step 13. A storage chamber 15 is formed in the cap 11 in a tapered shape toward the through hole 12.
However, a cap body 16 is housed in the storage chamber 15. Cap body 16 is storage chamber 1
5, the front surface of the cap body 16 comes into close contact with the seal ring 14 to close the through hole 12 and seal it. A small hole is made from the rear in the center of the cap body 16, and the writing member 6 is inserted into the center of the cap body 16.
A storage hole 17 for storing the writing part 10 of
A step part 18 is provided behind the storage hole 17, and the part behind the step part 18 is a hole with a slightly larger diameter. A holding piece 19 made of an elastic material such as rubber is fitted into the hole. As shown in FIG. 2, which is an enlarged cross-sectional view taken along the line - in FIG. 1, the holding piece 19 is ring-shaped and has four protruding pieces directed inward. As a result, the inside of the storage hole 17 and the outside of the cap body 16 communicate with each other through the gap between the holding pieces 19. Above storage hole 1
7 and a slightly larger diameter hole behind the storage hole 17,
For example, a groove, a notch, or the like may be provided in the stepped portion 18 for communication.

口金１１内には後方から円板状をした区画体２
０をはめて取付け、区画２０の前方を収納室１５
としているのである。区画体２０の中央には孔２
１をあけているが、孔２１は筆記部材６の小径部
９がちようどはまる大きさとしている。そして、
摺動筒４の前端付近内周に、その内周が筆記部材
６の外周に接するよう弾性材で作成したシールリ
ング２２をはめて、口金１１の外周にも弾性材で
作成したシールリング２３をはめた後に、摺動筒
４の前方に口金１１をねじ込んで連結すると、シ
ールリング２２は口金１１と摺動筒４との間でや
や圧縮されながら保持されて筆記部材６の外周と
の間をシールするように取付けられ、またシール
リング２３も口金１１と摺動筒４との間でやや圧
縮されながら保持されて、両者の連結部分をシー
ルするように取付けられる。 Inside the cap 11, there is a disc-shaped compartment 2 from the rear.
0 and install it, and connect the front of the compartment 20 to the storage chamber 15.
It is said that A hole 2 is provided in the center of the partition body 20.
1, but the hole 21 is sized to fit the small diameter portion 9 of the writing member 6. and,
A seal ring 22 made of an elastic material is fitted on the inner circumference near the front end of the sliding tube 4 so that its inner circumference contacts the outer circumference of the writing member 6, and a seal ring 23 made of an elastic material is also placed on the outer circumference of the base 11. After fitting, when the cap 11 is screwed into the front of the sliding tube 4 and connected, the seal ring 22 is held while being slightly compressed between the cap 11 and the sliding tube 4, and the seal ring 22 is held between the cap 11 and the sliding tube 4 and the outer periphery of the writing member 6. The seal ring 23 is also held while being slightly compressed between the base 11 and the sliding tube 4, and is attached so as to seal the connecting portion between the two.

別体のノツク部材２４を用意するが、ノツク部
材２４は円筒状をしていて軸筒１内にはまる外径
として、摺動筒４の外周にはまる内径としてい
る。そして、軸筒１の脚２，２とノツク部材２４
との間にスプリング２５を位置させて、それをや
や圧縮させながらノツク部材２４を摺動筒４の外
周にはめ込んで一体に取付けると、全部の組立て
が完了して第１図に示す状態となる。 A separate knob member 24 is prepared, and the knob member 24 has a cylindrical shape and has an outer diameter that fits into the shaft tube 1 and an inner diameter that fits into the outer periphery of the sliding tube 4. Then, the legs 2, 2 of the shaft cylinder 1 and the knob member 24
When the spring 25 is positioned between the spring 25 and the spring 25 is slightly compressed, the knob member 24 is fitted onto the outer periphery of the sliding tube 4 and attached as one piece.The entire assembly is completed and the state shown in FIG. 1 is obtained. .

第１図はシール状態を示しているが、スプリン
グ２５の力により摺動筒４、口金１１等が後退し
ていて、筆記部材６の小径部９は口金１１の区画
体２０の孔２１にはまつている。そして、筆記部
材６の先端部分は口金１１の先端付近内面に押さ
れて後退してきたキヤツプ体１６にはまつてい
て、筆記部材６の小径部９の先端はキヤツプ体１
６の段部１８に当り、筆記部材１０は収納孔１７
内にはまつている。このとき、スプリング２５に
より口金１１に加えられている後退方向の力で口
金１１のシールリング１４がキヤツプ体１６の前
面に押し付けられて口金１１の透通孔１２とキヤ
ツプ体１６との間をシールすることにより、口金
１１の透通孔１２をシールしてしまつている。そ
して、キヤツプ体１６の保持片１９は筆記部材６
の小径部９の外周に弾性的に接触している。な
お、このとき口金１１と摺動筒４との間に取付け
たシールリング２２が筆記部材６の外周に接触し
て、筆記部材６との間をシールしている。すなわ
ち、このシール状態においては、筆記部材６の空
気孔８や筆記部１０のシールは、シールリング１
４の位置とシールリング２２の位置との間で行な
われているのである。しかも、筆記部１０がある
収納孔１７の空気と、空気孔８を通つて筆記部材
６内にある空気とは連通できるようになつている
ので、気圧の差が生じない。 Although FIG. 1 shows the sealed state, the sliding tube 4, the cap 11, etc. have moved back due to the force of the spring 25, and the small diameter portion 9 of the writing member 6 is not inserted into the hole 21 of the compartment 20 of the cap 11. It is worshiped. The tip of the writing member 6 is stuck to the cap body 16 which has been pushed back by the inner surface near the tip of the mouthpiece 11, and the tip of the small diameter portion 9 of the writing member 6 is stuck to the cap body 16.
6, the writing member 10 is placed in the storage hole 17.
There is a shrine inside. At this time, the seal ring 14 of the cap 11 is pressed against the front surface of the cap body 16 by the force in the backward direction applied to the cap 11 by the spring 25, thereby sealing between the through hole 12 of the cap 11 and the cap body 16. By doing so, the through hole 12 of the cap 11 is sealed. The holding piece 19 of the cap body 16 is attached to the writing member 6.
It is in elastic contact with the outer periphery of the small diameter portion 9 of. At this time, the seal ring 22 attached between the cap 11 and the sliding tube 4 comes into contact with the outer periphery of the writing member 6 and seals between the writing member 6 and the writing member 6. That is, in this sealed state, the air hole 8 of the writing member 6 and the seal of the writing part 10 are not connected to the seal ring 1.
This is done between the position 4 and the position of the seal ring 22. Furthermore, since the air in the storage hole 17 in which the writing section 10 is located can communicate with the air inside the writing member 6 through the air hole 8, no difference in air pressure occurs.

シール状態から筆記状態にもつていくには、筆
記具を水平又は水平に近い状態にして、ノツク部
材２４をノツクする。スプリング２５を押し縮め
ながらノツク部材２４が前進すると、摺動筒４を
介して口金１１も前進する。しかし、キヤツプ体
１６は、保持片１９が筆記部材６の小径部９の外
周に弾性的に接触していて小径部９に保持された
ままとなつて口金１１の先端部内面と離れ、口金
１１の前進につれて区画体２０も前進してきてキ
ヤツプ体１６を小径部９や筆記部１０から押し出
してしまつたときに、キヤツプ体１６は収納室１
５内で落下して小径部９の前方位置を外れ、第３
図に示す状態となる。ここで、ノツク部材２４の
押しを解除すると、スプリング２５がノツク部材
２４を後方へ押す力により摺動筒４や口金１１が
後退していつて、筆記部材６の先端部分が口金１
１の透通孔１２から突出して、第４図に示す筆記
状態となる。この筆記状態で筆記をつづける。 To change from the sealed state to the writing state, the writing instrument is placed in a horizontal or nearly horizontal state, and the knocking member 24 is clicked. When the knock member 24 moves forward while compressing the spring 25, the cap 11 also moves forward via the sliding tube 4. However, since the holding piece 19 is in elastic contact with the outer periphery of the small diameter portion 9 of the writing member 6, the cap body 16 remains held by the small diameter portion 9 and separates from the inner surface of the tip end of the cap 11. When the compartment body 20 also moves forward and pushes the cap body 16 out of the small diameter part 9 and the writing part 10, the cap body 16 is pushed out of the storage chamber 1.
5, it fell out of the front position of the small diameter part 9, and the third
The state shown in the figure will be reached. Here, when the push of the knob member 24 is released, the sliding tube 4 and the cap 11 move backward due to the force of the spring 25 pushing the knob member 24 backward, and the tip of the writing member 6 is pushed back to the cap 1.
The pen protrudes from the through hole 12 of No. 1 and enters the writing state shown in FIG. Continue writing in this writing state.

筆記状態からシール状態に帰すには、筆記具の
先端側を下に向けてノツク部材２４をノツクす
る。摺動筒４や口金１１が前進すると。筆記部材
６の小径部９が収納室１５内から失くなり、キヤ
ツプ体１６は収納室１５内で落下して透通孔１２
の後方位置にきて透通孔位置１２をふさいだ、第
５図に示す状態となる。ここでノツク部材２４の
押しを解除すると、摺動筒４、口金１１、キヤツ
プ体１６が後退していつて、キヤツプ体１６が筆
記部材６の先端部分にはまつた、第１図に示す状
態に帰る。 To return from the writing state to the sealed state, the tip of the writing instrument is directed downward and the knock member 24 is tapped. When the sliding tube 4 and the cap 11 move forward. The small diameter portion 9 of the writing member 6 is lost from inside the storage chamber 15, and the cap body 16 falls inside the storage chamber 15 and falls into the through hole 12.
The state shown in FIG. 5 is reached, in which the through hole position 12 is blocked. When the push of the knob member 24 is released, the sliding tube 4, the cap 11, and the cap body 16 move back, and the cap body 16 is attached to the tip of the writing member 6, as shown in FIG. I'm going home.

つぎに、この発明の第２実施態様を第６図によ
り説明する。第２実施態様においては、摺動筒４
の先端部分内面に形成した段部に弾性材で作成し
たシールリング２２を当てた後、摺動筒４の前方
から口金１１を圧入して摺動筒４の段部と口金１
１の後端との間にシールリング２２を取付け、シ
ールリング２２により口金１１と摺動筒４との連
結部分をシールすると同時に、口金１１や摺動筒
４と筆記部材６との間をシールするようにしてい
る。なお、口金１１は、圧入でなしに螺合により
摺動筒４の前方に連結するようにしてもよい。シ
ールリング２２は、口金１１や摺動筒４と筆記部
材６との間をシールすると同時に、口金１１と摺
動筒４との連結部分もシールするようになつてい
るので、口金１１と摺動筒４とは螺合により連結
してもその連結部分は十分にシールできるのであ
る。 Next, a second embodiment of the present invention will be explained with reference to FIG. In the second embodiment, the sliding tube 4
After applying the seal ring 22 made of an elastic material to the stepped portion formed on the inner surface of the tip portion of the slide tube 4, the cap 11 is press-fitted from the front of the sliding tube 4 to connect the stepped portion of the sliding tube 4 and the cap 1.
A seal ring 22 is attached between the rear end of the cap 11 and the sliding tube 4, and the seal ring 22 seals the connecting portion between the cap 11 and the sliding tube 4, and at the same time seals between the cap 11, the sliding tube 4, and the writing member 6. I try to do that. Note that the base 11 may be connected to the front of the sliding tube 4 by screwing instead of being press-fitted. The seal ring 22 seals between the cap 11 and the sliding tube 4 and the writing member 6, and at the same time seals the connecting portion between the cap 11 and the sliding tube 4. Even if it is connected to the cylinder 4 by screwing, the connected portion can be sufficiently sealed.

また、第２実施態様においては、摺動筒４の後
端部分内周又はノツク部材２４の内周に円筒体２
６をはめて、スリツト５，５を入れた摺動筒４の
後方部分を補強している。そして摺動筒４の後端
付近外周には後方からノツク部材２４をねじ込ん
でいる。その他の構成は第１実施態様と同じであ
る。 Further, in the second embodiment, a cylindrical body 2 is provided on the inner periphery of the rear end portion of the sliding tube 4 or on the inner periphery of the knob member 24.
6 is fitted to reinforce the rear part of the sliding tube 4 in which the slits 5, 5 are inserted. A knob member 24 is screwed into the outer periphery near the rear end of the sliding tube 4 from behind. The other configurations are the same as the first embodiment.

つぎに、この発明の第３実施態様を第７図によ
り説明する。第３実施態様においては、口金１１
を使用せずに摺動筒４の前方部分を先細り状に形
成して、第１実施態様の口金１１と摺動筒４とを
連結したものの形状や構造とほぼ同じものとして
いる。そして、弾性材で作成された円筒状をした
シール筒２７の内面中央に突条を形成していてシ
ールリング２２としたものを摺動筒４の内面には
め込んで固定し、シールリング２２により筆記部
材６の外周との間をシールするようにしている。
その他の構成は第１実施態様と同じである。 Next, a third embodiment of the present invention will be explained with reference to FIG. In the third embodiment, the base 11
The front part of the sliding tube 4 is formed into a tapered shape without using the sliding tube 4, so that it has almost the same shape and structure as the one in which the cap 11 and the sliding tube 4 are connected in the first embodiment. Then, a cylindrical seal tube 27 made of an elastic material has a protrusion formed at the center of its inner surface to serve as a seal ring 22, and is fitted into the inner surface of the sliding tube 4 and fixed. A seal is formed between the outer periphery of the member 6 and the outer periphery of the member 6.
The other configurations are the same as the first embodiment.

つぎに、この発明の第４実施態様を第８図によ
り説明する。第４実施態様においては、第３実施
態様のように摺動筒４の前端部分を先細り状に形
成しているが、キヤツプ体１６の外周に段部を設
けて、シール状態においてはその段部が摺動筒４
の先端部内面に取付けたシールリング１４に当接
してシールするようにしている。なお、シールリ
ング１４はキヤツプ体１６の外周段部に取付けて
もよい。 Next, a fourth embodiment of the present invention will be explained with reference to FIG. In the fourth embodiment, the front end portion of the sliding tube 4 is formed into a tapered shape as in the third embodiment, but a stepped portion is provided on the outer periphery of the cap body 16, and in the sealed state, the stepped portion is formed in a tapered shape. is the sliding tube 4
The sealing ring 14 is attached to the inner surface of the tip end of the sealing ring 14 for sealing. It should be noted that the seal ring 14 may be attached to the outer peripheral stepped portion of the cap body 16.

つぎに、この発明の第５実施態様を第９図によ
り説明する。第９図はキヤツプ体１６の後方部分
の断面図であるが、キヤツプ体１６にはめた弾性
材製の保持片１９として、中央に星形状の孔をあ
けたものを使用している。 Next, a fifth embodiment of the present invention will be explained with reference to FIG. FIG. 9 is a cross-sectional view of the rear portion of the cap body 16, and the holding piece 19 made of an elastic material fitted to the cap body 16 is a piece having a star-shaped hole in the center.

つぎに、この発明の第６実施態様を第１０図に
より説明する。これまでの実施態様においてはキ
ヤツプ体１６の内部に保持片１９を使用している
が、第６実施態様においては保持片１９を使用せ
ずに、キヤツプ体１６に後方から何本かのスリツ
ト２８を入れたものを使用している。筆記部材６
先端部分にキヤツプ体１６がはまつたときには、
キヤツプ体１６の後方部分がスリツト２８のため
にやや拡開し、このためキヤツプ体１６が筆記部
材６先端部分に弾性的に保持されるようになる。 Next, a sixth embodiment of the present invention will be described with reference to FIG. 10. In the previous embodiments, the holding piece 19 is used inside the cap body 16, but in the sixth embodiment, the holding piece 19 is not used and several slits 28 are inserted into the cap body 16 from the rear. I'm using one that has . Writing member 6
When the cap body 16 is fitted to the tip,
The rear portion of the cap body 16 is slightly expanded due to the slit 28, so that the cap body 16 is elastically held at the tip portion of the writing member 6.

以上この発明の実施態様をいくつか示したが、
この発明の実施態様としては以上のものに限られ
るわけではない。たとえばノツク式筆記具にした
実施態様を示したが、軸筒１と摺動筒４とを相対
的に回動させるとき摺動筒４が前進後退できるよ
うにしてもよい。このときの軸筒１と摺動筒４と
の間に設ける前進後退機構としてはカム機構、ね
じ送り機構等が採用可能である。また、回動式に
する場合も、軸筒１を前軸と後軸とに分割して両
軸を相対的に回動できるようにし、両軸を相対的
に回動させるときに摺動筒４を前進後退させるよ
うにしてもよい。とにかくどこかをどのようにか
操作するときに、摺動筒４が軸筒１や筆記部材６
に対して前進したり後退したりするようになつて
いればよい。 Although some embodiments of this invention have been shown above,
The embodiments of this invention are not limited to those described above. For example, although an embodiment has been shown in which the writing instrument is a knob type writing instrument, the sliding barrel 4 may be made to be able to move forward and backward when the shaft barrel 1 and the sliding barrel 4 are rotated relative to each other. At this time, a cam mechanism, a screw feed mechanism, etc. can be employed as the forward and backward mechanism provided between the shaft tube 1 and the sliding tube 4. In addition, when using a rotating type, the shaft tube 1 is divided into a front shaft and a rear shaft so that both shafts can be rotated relative to each other, and when the two shafts are relatively rotated, the sliding tube 4 may be moved forward and backward. In any case, when operating somewhere in any way, the sliding tube 4 is connected to the shaft tube 1 or the writing member 6.
It is sufficient if the robot moves forward or backward relative to the target.

軸筒１としては、図示したような長いものとす
る必要は必ずしもなく、きわめて短いものとして
もよい。摺動筒４としても同様であり、摺動筒４
を短いものとして軸筒１の前方部分内にはまるも
のとしてもよい。 The barrel 1 does not necessarily have to be as long as shown in the drawings, but may be extremely short. The same applies to the sliding tube 4.
It is also possible to make it shorter so that it fits inside the front part of the shaft cylinder 1.

透通孔１２と区画体２０との間に形成する収納
室１５はほぼじょうご形の空間をしていればよ
く、とにかく筆記具先端側を下に向けたときには
収納室１５内に収納したキヤツプ体１６が落下し
て、透通孔１２と筆記部材６先端部とを結ぶ線の
位置にきて、筆記具を水平又は水平に近い状態に
したときはその線から外れた位置にくるようにな
つていればよい。収納室１５の内面に円弧状にく
り抜いたガイド溝をいくつか形成したものとして
もよい。ガイド溝は後方側が深く、前方へいくほ
ど浅くなつていくものとして、筆記状態において
はキヤツプ体１６がガイド溝の１つにはまり込
み、シール状態にもつていくために筆記具先端を
下に向けて摺動筒４を前進させたときには、キヤ
ツプ体１６がガイド溝にガイドされながら落下し
ていくようにするのである。 The storage chamber 15 formed between the through hole 12 and the partition body 20 only needs to be a substantially funnel-shaped space, and in any case, when the tip of the writing instrument is facing down, the cap body 16 stored in the storage chamber 15 will be closed. When the writing instrument falls and comes to the position of the line connecting the through hole 12 and the tip of the writing member 6, and the writing instrument is placed in a horizontal or nearly horizontal state, it should be in a position away from that line. Bye. The inner surface of the storage chamber 15 may have several arcuate guide grooves formed therein. Assuming that the guide groove is deep at the rear and becomes shallower toward the front, the cap body 16 fits into one of the guide grooves in the writing state, and the tip of the writing instrument is turned downward in order to achieve a sealing state. When the sliding tube 4 is moved forward, the cap body 16 is caused to fall while being guided by the guide groove.

区画体２０の形状、構造等は任意である。区画
体２０をやや長い円筒状としてその後方部分の内
面にシールリング２２をはめて、筆記部材６との
間のシールをさせるようにしてもよい。なお、後
方位置のシール手段にしても、以上に示したもの
以外のいろいろなやり方が可能であり、設ける箇
所も任意である。 The shape, structure, etc. of the partition body 20 are arbitrary. The partitioning body 20 may have a slightly elongated cylindrical shape and a sealing ring 22 may be fitted on the inner surface of the rear portion thereof to provide a seal between the partitioning body 20 and the writing member 6. It should be noted that various methods other than those shown above are possible for the sealing means at the rear position, and the sealing means can be provided at any location.

キヤツプ体１６に保持片１９を取付ける場合
も、保持片１９の形状、構造、材質等は任意であ
る。たとえば磁石を利用することも考えられる。
保持片１９を使用せずにキヤツプ体１６に弾力を
もたせるような細工をして、その弾力により筆記
部材６の先端部にかるく保持させるやり方の１例
を第６実施態様として紹介したが、そのやり方と
してはそれ以外にもいろいろと考えられる。筆記
部材６の先端部分の方に保持片１９等の保持手段
を設けるようにしてもよい。 When attaching the holding piece 19 to the cap body 16, the shape, structure, material, etc. of the holding piece 19 are arbitrary. For example, it is possible to use magnets.
An example of a method in which the cap body 16 is made to have elasticity without using the holding piece 19 and the tip of the writing member 6 is lightly held by the elasticity was introduced as the sixth embodiment. There are many other possible ways to do this. A holding means such as a holding piece 19 may be provided at the tip of the writing member 6.

摺動筒４の先端部分を透明にしておけば、キヤ
ツプ体１６の動きや筆記部材６の先端部分がキヤ
ツプ体１６にちやんとはまつているかどうかの確
認が、外から見てできるので便利である。 If the tip of the sliding tube 4 is made transparent, it is convenient because it is possible to check the movement of the cap body 16 and whether the tip of the writing member 6 is properly attached to the cap body 16 from the outside. It is.

キヤツプ体１６自体を弾性材で作成して、シー
ルリング１４を省略したり保持片１９を一体に設
けたりしてもよい。 The cap body 16 itself may be made of an elastic material, and the seal ring 14 may be omitted or the holding piece 19 may be provided integrally.

以上からも明らかなように、この発明に係る筆
記具においては、筆記具を水平か水平にに近い状
態にして摺動筒４を前進させる操作をすれば、摺
動筒４が前進して摺動筒４の先端付近内面に取付
けた区画体２０も前進していつて、筆記部材６の
先端部分にはまつて保持されていたキヤツプ体１
６を押し出して外すと、キヤツプ体１６は収納室
１５内で落下して筆記部材６の先端部分の前方位
置を外れる。ここで摺動筒４が後退する操作をす
れば、摺動筒４が後退して筆記部材６先端の筆記
部１０が摺動筒４の透通孔１２から突出して筆記
状態になる。つぎに、筆記具先端側を下に向けな
がら摺動筒４を前進させる操作をすれば、摺動筒
４が前進していつて、透通孔１２の後方位置に筆
記部材６の先端部分が存在しなくなつて、キヤツ
プ体１６が落下しうる空間ができ、キヤツプ体１
６は落下して透通孔１２の後方位置にくる。ここ
で摺動筒４を後退させるための操作をすれば、摺
動筒４が後退していつて同時にキヤツプ体１６も
後退していつて、筆記部材６先端部分にはまつて
シール状態となる。したがつて、筆記状態にした
りシール状態にしたりする操作は簡単である。 As is clear from the above, in the writing instrument according to the present invention, when the writing instrument is placed in a horizontal or nearly horizontal state and the sliding tube 4 is moved forward, the sliding tube 4 moves forward. The partitioning body 20 attached to the inner surface near the tip of the writing member 6 also moved forward, and the cap body 1, which was still held at the tip of the writing member 6, moved forward.
When the writing member 6 is pushed out and removed, the cap body 16 falls within the storage chamber 15 and is removed from the position in front of the tip of the writing member 6. If the sliding tube 4 is operated to retreat at this point, the sliding tube 4 will retreat and the writing portion 10 at the tip of the writing member 6 will protrude from the through hole 12 of the sliding tube 4 to enter the writing state. Next, if you move the sliding tube 4 forward while facing the tip of the writing instrument downward, the sliding tube 4 will move forward and the tip of the writing member 6 will be located at the rear position of the through hole 12. When the cap body 16 disappears, a space is created in which the cap body 16 can fall, and the cap body 1
6 falls and comes to the rear position of the through hole 12. If an operation is performed to move the sliding tube 4 backward, the sliding tube 4 will move backward, and at the same time, the cap body 16 will also move back, and the tip of the writing member 6 will be in a sealed state. Therefore, it is easy to change the writing state or the sticker state.

シール状態においては、後退した摺動筒４の先
端部内面とキヤツプ体１６との間でシールが行な
われ、またその後方位置においても摺動筒４と筆
記部材６との間をシールするシール手段によりシ
ールが行なわれるので、両シール位置の間に存在
する筆記部材６の筆記部１０や空気孔８等は、十
分にシールされることになる。しかも、筆記部１
０や筆記部材６をとりまく空気の気圧に差を生じ
ることもない。そして、このようにしたため、筆
記部材６の内外を連通させるための空気孔８等は
必ずしも筆記部材６の先端位置に設ける必要はな
く、したがつて一般に市販されている筆記部材６
又はそれに近い筆記部材６を使用することもでき
るようになつて、便利である。 In the sealed state, sealing is performed between the inner surface of the tip of the retracted sliding tube 4 and the cap body 16, and also in the rear position, there is a sealing means for sealing between the sliding tube 4 and the writing member 6. Since the sealing is performed by this, the writing portion 10 of the writing member 6, the air hole 8, etc. existing between the two sealing positions are sufficiently sealed. Moreover, writing part 1
0 and the air pressure surrounding the writing member 6 do not differ. Since this is done, it is not necessary to provide the air holes 8 and the like for communicating the inside and outside of the writing member 6 at the tip of the writing member 6, and therefore it is not necessary to provide the air holes 8 and the like for communicating the inside and outside of the writing member 6.
It is now possible to use a writing member 6 that is similar to the writing member 6, which is convenient.

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

第１図、第３図、第４図及び第５図はそれぞれ
この発明の第１実施態様の作動を示す断面図、第
２図は第１図の−線拡大断面図、第６図は第
２実施態様の断面図、第７図は第３実施態様の要
部断面図、第８図は第４実施態様の要部断面図、
第９図は第５実施態様の要部断面図、第１０図は
第６実施態様の要部正面図である。 １……軸筒、４……摺動筒、６……筆記部材、
８……空気孔、１０……筆記部、１１……口金、
１２……透通孔、１４……シールリング、１５…
…収納室、１６……キヤツプ体、１７……収納
孔、２０……区画体、２１……孔、２２……シー
ルリング、２３……シールリング、２４……ノツ
ク部材、２５……スプリング。 1, 3, 4, and 5 are sectional views showing the operation of the first embodiment of the present invention, FIG. 2 is an enlarged sectional view taken along the - line in FIG. 1, and FIG. 7 is a sectional view of the main part of the third embodiment, FIG. 8 is a sectional view of the main part of the fourth embodiment,
FIG. 9 is a sectional view of the main part of the fifth embodiment, and FIG. 10 is a front view of the main part of the sixth embodiment. 1... Axial tube, 4... Sliding tube, 6... Writing member,
8... Air hole, 10... Writing part, 11... Cap,
12...Through hole, 14...Seal ring, 15...
... Storage chamber, 16 ... Cap body, 17 ... Storage hole, 20 ... Partition body, 21 ... Hole, 22 ... Seal ring, 23 ... Seal ring, 24 ... Knock member, 25 ... Spring.

Claims (1)

【特許請求の範囲】[Claims] １ 軸筒１内に摺動筒４を前進後退ができるよう
にはめ、摺動筒４内には先端に筆記部１０を設け
た筆記部材６を収容して筆記部材６は軸筒１側と
連結させ、そして摺動筒４の先端には筆記部材６
の筆記部１０が出没する透通孔１２をあけ、摺動
筒４の先端付近内面には区画体２０を取付けて区
画体２０には筆記部材６の先端部分が透通する孔
２１をあけ、また透通孔１２と区画体２０との間
にほぼじょうご形の空間とした収納室１５を形成
して収納室１５内にはキヤツプ体１６を収納して
いるが、キヤツプ体１６は、筆記部材６の先端部
分にはまることができるようにしていてしかも透
通孔１２からも区画体２０の孔２１からも抜け出
さない大きさとしており、かつキヤツプ体１６と
筆記部材６の先端部分との間にはキヤツプ体１６
が筆記部材６の先端部分にはまつたときには筆記
部材６の先端部分がキヤツプ体１６を一時的に保
持する保持手段を設け、さらにキヤツプ体１６が
筆記部材６の先端部分にはまつて摺動筒４により
前方から押し付けられた収納状態においてキヤツ
プ体１６と摺動筒４の内面との間をシールするシ
ール手段を設け、しかもこの収納状態において後
方位置においても摺動筒４と筆記部材６との間を
シールするシール手段を設けた、筆記具。1. The sliding tube 4 is fitted into the shaft tube 1 so that it can move forward and backward, and the writing member 6 with the writing part 10 at the tip is accommodated in the sliding tube 4, so that the writing member 6 is placed on the shaft tube 1 side. and a writing member 6 at the tip of the sliding tube 4.
A through hole 12 is made through which the writing part 10 appears, a partition 20 is attached to the inner surface near the tip of the sliding tube 4, and a hole 21 is made in the partition 20 through which the tip of the writing member 6 passes. Further, a storage chamber 15 having a substantially funnel-shaped space is formed between the through hole 12 and the partition body 20, and a cap body 16 is stored in the storage chamber 15. It is designed so that it can fit into the tip of the writing member 6, and is sized so that it does not slip out from the through hole 12 or the hole 21 of the partition 20, and there is no space between the cap 16 and the tip of the writing member 6. is cap body 16
When the tip of the writing member 6 is attached to the tip of the writing member 6, the tip of the writing member 6 is provided with a holding means for temporarily holding the cap 16, and furthermore, the cap 16 is slid onto the tip of the writing member 6. A sealing means is provided for sealing between the cap body 16 and the inner surface of the sliding tube 4 in the stored state in which it is pressed from the front by the tube 4, and furthermore, the sliding tube 4 and the writing member 6 are sealed even in the rear position in this stored state. A writing instrument equipped with a sealing means for sealing the space between the two.