JP3601867B2

JP3601867B2 - Applicator

Info

Publication number: JP3601867B2
Application number: JP01060995A
Authority: JP
Inventors: 松平外山
Original assignee: Zebra Co Ltd
Current assignee: Zebra Co Ltd
Priority date: 1995-01-26
Filing date: 1995-01-26
Publication date: 2004-12-15
Anticipated expiration: 2019-12-15
Also published as: JPH08196977A

Description

【０００１】
【産業上の利用分野】
本発明は、誤記等の上に正しい文字を書く際に該誤記部分（訂正部分）に修正液を塗布する塗布具に係り、特にキャップが液タンクの先端口外周に密接してチップを密封する構成で、キャップの装着時に加圧縮せしめたキャップ内の圧縮空気を液タンク内に送り込んで該液タンクの内圧を上昇させる様に構成された塗布具に関するものである。
【０００２】
【従来の技術】
従来、液タンクの先端口に対するキャップの装着時においてキャップ内の空気を加圧縮せしめると共に、加圧縮された圧縮空気を液タンク内に送り込んで該液タンクの内圧を上昇させる構成の塗布具としては図６に示したものが知られている（実開平６−３９１６９号）。
【０００３】
然るに、この従来塗布具は公開明細書第７頁の段落番号（００１３）から段落番号（００１５）に記載されている様に、キャップ２０を先端口２１に装着する過程において、キャップ２０内の内筒２２を先端口２１の外周に密接させて該内筒２２内を空気漏れを防いだ密封空間とし、この密封空間の容積が減少する事で内筒２２内の空気が加圧縮される。そして、内筒２２内の空気が加圧縮された時点でキャップ２０内の可撓性に富んだ開弁部材２３の筒壁から内側に弾性起倒自在に切り起こされている舌片２４にチップ２５から突出する球状塗布体２６が当接し、舌片２４の反発力で球状塗布体２６を接触するチップ２５先端の液塗布口から離間させる如くスプリングに抗して後退させ、それにより、球状塗布体２６と液塗布口の口縁との間にできた隙間から内筒２２内の圧縮空気が液タンク２７に送り込まれ、液タンク２７の内圧が上昇される様にしたものである。
【０００４】
【発明が解決しようとする課題】
しかし乍ら、従来の塗布具はキャップの装着が完了した時に弾性起倒自在な舌片が球状塗布体から離れ、チップの先端縁側部に当接して開弁部材の筒方向に起されることで、球状塗布体がスプリングによりチップの先端縁に接触せしめて液塗布口を閉弁する構造であることから、キャップを装着する過程において、当接する球状塗布体をスプリングのバネ力に打ち勝ってチップの先端縁から離間するチップ内方に押す舌片の反発力所謂弾性作用が短期間で衰え、その開弁作用を発揮し得なくなる。
【０００５】
従って、従来の塗布具はキャップの装着時に圧縮空気を液タンク内に送り込むためにチップ先端の液塗布口を開弁する舌片の反発力が短期間で駄目になり、開弁作用を発揮し得なくなることから、圧縮空気を液タンク内に確実に送り込むことができなくなり、結果として従来から行われている液タンク自体を指先で押して凹ませる（変形させる）如く外部から力を加えて液タンク内の内圧を高める方法を採らなければならず、実用性に欠ける。
【０００６】
本発明はこの様な従来事情に鑑みてなされたもので、キャップの装着時に加圧縮せしめたキャップ内の圧縮空気を液タンク内に送り込んで液タンクの内圧上昇を図ることは勿論、圧縮空気を液タンクに送り込むためのチップ先端の液塗布口の開弁作用を長期に亘り安定良く維持し得、しかも液タンクを振ることで液塗布口を開弁し得る様にした塗布具を提供する事を目的とする。
【０００７】
【課題を達成するための手段】
上記目的を達成するために本発明が講じる技術的手段は、液タンクに先端口を介して装着されるチップの先端内部に、スプリングで弾発されて先端縁に接触し且つ一部を先端から突出させた状態で球状塗布体が抱持され、チップを保持する先端口の外周に密接して該先端口にキャップが装着されてチップを密封する構成の塗布具に於いて、
前記キャップ内に筒方向移動可能に開弁部材を配設し、該開弁部材は液タンクを振る動作によりチップから突出する球状塗布体に衝突せしめて該球状塗布体をスプリングに抗して先端縁から後退離間せしめる程度の重量を有し、更に、前記キャップ内に、開弁部材をキャップの内部底方向に向けて弾発支持するスプリングを配設し、該スプリングは開弁部材の自重よりも強く且つ液タンクに振る動作が付与されることで開弁部材の自重により圧縮せしめる程度のバネ力に設定した事を要旨とする。
【０００８】
又、上記キャップ内に、先端口の先端側外周に密接してチップを密封する内キャップを設けて、この内キャップ内に筒方向移動可能に上記開弁部材を配設したことを事を要旨とする。
【０００９】
更に、上記キャップ内には、上記開弁部材をチップ先端の口縁に当接しない位置で受け止める様に、係止鍔が設けられていることを要旨とする。
【００１０】
【作用】
而して、上記した本発明の請求項１に記載の技術的手段によれば、キャップを先端口に装着した後に液タンクを振ると、キャップ内の開弁部材が筒方向に移動を繰り返してチップ先端から突出する球状塗布体に衝突し、球状塗布体をスプリングに抗して先端縁から離間させる如くチップ内方に向けて後退せしめて液塗布口を開弁する。それにより、装着時に加圧縮されたキャップ内の圧縮空気は液塗布口から液タンク内に送り込まれ、該液タンクの内圧を上昇させる。
【００１１】
請求項２に記載の技術的手段によれば、開弁部材はスプリングによりチップの先端から離れるキャップの内部底方向に弾発支持されていることで、不使用時等において、開弁部材がチップの先端から突出する球状塗布体に衝突せしめて該球状塗布体を不用意にチップの内方に向けて押動せしめることはない。即ち、液タンクに振る動作が付与されない限り開弁部材が球状塗布体に衝突せしめて液塗布口を不用意に開弁することはない。
【００１２】
請求項３に記載の技術的手段によれば、キャップを先端口に装着する過程において内キャップが先端口の先端外周に密接せしめることから、内キャップで効果的に加圧縮された圧縮空気を開弁部材により開弁せしめられた液塗布口から液タンク内に送り込むことができる。
【００１３】
【実施例】
本発明の実施の一例を図面に基づいて以下説明すると、液タンク１は樹脂等により適宜の太さと長さを有する筒状（ペンタイプ）、或いは容器状（ボトルタイプ）に成形される周知の形状（構造）を成し、先端にはチップ２を保持する先端口３が圧入やネジ込み等の適宜の接続により、或いは一体に装着されており、この先端口３には外周に密接した状態でチップ２を密封する構成のキャップ４が装着される。この様にキャップ４が先端口３に密接した状態で装着されることで、キャップ４内の空気は加圧縮される様になっている。そして、キャップ４を装着した後に液タンク１を振ることで、後述する開弁部材５がチップ２先端に一部を液塗布口６から突出させた状態で抱持されている球状塗布体７に衝突せしめて、該球状塗布体７をスプリング８に抗して液塗布口６の口縁６−１から離間させる如くチップ２内方へ向けて後退させて液塗布口６を開弁し、加圧縮されたキャップ４内の圧縮空気を液タンク１内に送り込んで同液タンク１の内圧を上昇させる様に構成してなる。
【００１４】
チップ２、先端口３は周知の構造を成す。即ち、チップ２は適宜の金属材にてパイプ状に形成され、先細く形成した先端開口縁を内側にカシメ等により絞り込んで同先端に液塗布口６を設けると共に内部にはブローチ加工により形成した放射状の縦溝９を設けて、この縦溝９と液塗布口６との先端内部に押し子１０を介してスプリング８により弾発されて液塗布口６の口縁６−１に接触し且つ一部を液塗布口６から外部に突出させた状態で球状塗布体７が抱持される。先端口３は液タンク１と同様に合成樹脂等により後端から先端に向けて漸次先細状の段付き筒状に別体、或いは液タンク１と一体に成形され、その先端にチップ２を圧入により保持すると共に、そのキャップ装着基端３−１側の外周にはキャップ４が装着された時点でキャップ４内周の後述する環状突起１１が嵌合する環状突起１２を設ける。
【００１５】
キャップ４は、周知の如く合成樹脂等の所望な材料により成形され、その開口部の内周面に先端口３の外周に密接すると共に、先端口３外周の環状突起１２に嵌合する環状突起１１を設ける。そして、内部には開弁部材５を筒方向に移動可能に配設する内筒４−１を設ける。
【００１６】
内筒４−１は、キャップ４の内部底４−２から開口部側に向けて適宜の内径にて同心状に形成され、その開口縁には開弁部材５を内在保持する係止鍔１３を内向きに設ける。尚、内筒４−１の突出長さ（高さ）Ｌはキャップ４を先端口３に装着した状態においてキャップ４内に内在するチップ２の先端部位に位置する程度に形成する。係止鍔１３は液タンク１を振った際に開弁部材５がチップ２先端の液塗布口６から突出する球状塗布体７に衝突せしめて該球状塗布体７をスプリング８に抗して液塗布口６の口縁６−１から離間させる如くチップ２内方へ向けて後退させて該液塗布口６を確実に開弁する様に、そして液塗布口６を開弁した状態でその口縁６−１には当接（衝突）しない位置で開弁部材５を受け止める様に内筒４−１の開口縁に設ける（図３参照）。即ち、開弁した液塗布口６が開弁部材５により塞がれない位置で該開弁部材５を受け止める様に設ける。
【００１７】
開弁部材５は、液タンク１を振る動作により内筒４−１内を筒方向に移動せしめて液塗布口６から突出する球状塗布体７に衝突し、該球状塗布体７をスプリング８に抗して液塗布口６の口縁６−１から離間するチップ２内方へ向けて押動後退させて液塗布口６を開弁する役目を成すもので、内筒４−１の内径と略同径とする外径で該内筒４−１内を筒方向に移動し得る程度の長さを有する柱状（棒状）に形成され、内筒４−１に筒方向移動可能に配設される。そして、この開弁部材５の重量は球状塗布体７を液塗布口６方向に弾発するスプリング８のバネ力よりも軽く、しかも液タンク１に振る動作が付与された場合には該スプリング８のバネ力に打勝って球状塗布体７を液塗布口６から離間するチップ２内方に向けて押動後退せしめる程度に形成する。即ち、開弁部材５は液タンク１が振られた際に作用する慣性力による移動が助長されて球状塗布体７をスプリング８のバネ力に打勝ってチップ２内方へ向けて押動後退せしめる重量に形成する。
【００１８】
尚、この開弁部材５は柱状に限らず、球状等の適宜の形状であっても良い。要は液タンク１を筒方向に振った際にキャップ４内の内筒４−１内を筒方向に往復移動せしめてチップ２先端の液塗布口６から突出する球状塗布体７をスプリング８に抗して液塗布口６の口縁６−１から離間するチップ２内方へ向けて押動後退し得る形状であれば自由である。又、開弁部材５は液タンク１を振らない状態でチップ２先端の液塗布口６から突出する球状塗布体７上に載っても該球状塗布体７が液塗布口６から離間するチップ２内方に向けて移動しない程度、即ち、スプリング８のバネ力よりも軽く、液タンク１を振る動作が付与された状態ではスプリング８のバネ力に打勝って球状塗布体７を液塗布口６の離間するチップ２内方に向けて押動後退せしめることができる適宜の重量を有する様に形成できるのであれば、金属、樹脂等の所望な材料にて形成するも良く、自由である。
【００１９】
次に、以上の如く構成した本実施例塗布具の使用例を説明すると、キャップ４を先端口３に押し込み装着した後に、液タンク１を筒方向に振る。即ち、液タンク１内に内在されている撹拌子１４により修正液Ｍを撹拌すべく液タンク１を振ると、内筒４−１内の開弁部材５が筒方向に移動せしめてチップ２先端の液塗布口６から突出する球状塗布体７に衝突し、該球状塗布体７をスプリング８に抗して液塗布口６の口縁６−１から離間させる如くチップ２内方へ向けて押動後退せしめて液塗布口６を開弁する（図３の状態）。従って、液塗布口６の開弁が開弁部材５の衝突により確実に成される。それにより、キャップ４を装着する過程で加圧縮されたキャップ４内の圧縮空気は開弁せしめた液塗布口６の口縁６−１と球状塗布体７との隙間から液タンク１内に送り込まれて該液タンク１の内圧を確実に上昇させることができる。そして、液タンク１を振る動作を止めることで、球状塗布体７はスプリング８により液塗布口６の口縁６−１に接触せしめて該液塗布口６を閉弁する（図２の状態に戻される）。
【００２０】
図４は、キャップ４の内部に、先端口３に対する装着時にその先端側外周部位に密接せしめてチップ２を密封すると共に、空気を効果的に加圧縮する内キャップ４−３を一体に設けて、この内キャップ４−３で加圧縮された圧縮空気を開弁部材５の衝突により開弁された液塗布口６の口縁６−１と球状塗布体７との隙間から液タンク１内に送り込んで該液タンク１の内圧を効果的に上昇させる様に構成した他の実施例である。
【００２１】
内キャップ４−３は、先端口３の先端側外径にて内筒４−１の開口縁をキャップ４の開口部に向けて延設せしめることで該内筒４−１に一体に連設形成され、キャップ４を先端口３に装着する過程で該先端口３の先端側外周に密接してチップ２を密封すると共にキャップ４内の空気を効果的に加圧縮せしめる役目を成す。
【００２２】
図５は、内筒４−１内の開弁部材５をキャップ４の内部底４−２側に向けて弾発する。即ちチップ２先端の液塗布口６から開弁部材５を離間する方向に向けて弾発するスプリング１５を内筒４−１内に配設して、不使用時等において球状塗布体７が開弁部材５によりチップ２内方に向けて押動されて液塗布口６が不用意に開弁しない様に構成した他の実施例である。
【００２３】
スプリング１５は、開弁部材５を常時、キャップ４の内部底４−２方向に弾発支持する役目を成すもので、開弁部材５の自重よりも強く且つ液タンク１に振る動作が付与されることで圧縮せしめる程度のバネ力に設定し、太さを変えた段付き状に形成した開弁部材５と内筒４−１の係止縁１３との間に弾装せしめて、開弁部材５をキャップ４の内部底４−２方向に弾発支持する様にしてなる。
【００２４】
而して、斯る実施例の塗布具によれば、不使用時等において、開弁部材５がチップ２先端の液塗布口６から突出する球状塗布体７に衝突せしめて該球状塗布体７を不用意にチップ２内方に向けて押動せしめることはない。即ち、液タンク１内に内在されている撹拌子１４により修正液Ｍを撹拌すべく液タンク１を上述した実施例の如く振らない限り開弁部材５が球状塗布体７をチップ２内方に向けて押動する衝突力により該球状塗布体７に衝突せしめて液塗布口６を不用意に開弁することはない。従って、修正液Ｍが液塗布口６から不用意に流出する等の虞れはない。
【００２５】
【発明の効果】
本発明の塗布具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。
キャップを先端口に装着した後に液タンクを振ると、キャップ内の開弁部材が筒方向に移動を繰り返してチップ先端から突出する球状塗布体に衝突し、球状塗布体をスプリングに抗して先端縁から離間せしめるチップ内方に向けて後退させて液塗布口を確実に開弁する。
【００２６】
又、開弁部材はスプリングによりチップの先端から離れるキャップの内部底方向に弾発支持されていることから、不使用時等において、開弁部材がチップの先端から突出する球状塗布体に衝突せしめて該球状塗布体を不用意にチップの内方に向けて押動後退せしめることはない。即ち、液タンクに振る動作を付与しない限り開弁部材が球状塗布体に衝突せしめて液塗布口を不用意に開弁することはない。ひいては修正液が不用意に流出する等を防ぐ流出防止効果が期待できる。
【００２７】
更に、キャップを先端口に装着する過程において内キャップが先端口の先端外周に密接せしめることから、内キャップで効果的に加圧縮された圧縮空気を開弁部材の衝突により開弁せしめた液塗布口から液タンク内に送り込むことができる。
【００２８】
従って、本発明の塗布具によれば、キャップの装着時に加圧縮せしめたキャップ内の圧縮空気を液タンク内に送り込んで液タンクの内圧上昇を図ることは勿論、液タンク内に内在されている撹拌子により修正液を撹拌すべく液タンクを振る動作によって、チップ先端の液塗布口を確実に開弁せしめてキャップ内の圧縮空気を液タンクに確実に送り込むことができる。よって、圧縮空気による液タンクの内圧上昇の確実性が図られる。又、従来の塗布具の弾性作用による開弁構造に対して液タンクを振る動作により開弁部材を衝突させて行う開弁構造であることから、長期に亘り開弁作用を安定良く維持し得る。よって、実用性に優れ且つ取扱性においても優れた塗布具となる。
【図面の簡単な説明】
【図１】請求項１に係る本発明塗布具の実施の一例を示した断面図
【図２】要部を示した拡大断面図
【図３】開弁部材が球状塗布体に衝突せしめて該球状塗布体を押動後退させた状態（開弁状態）を示した同拡大断面図
【図４】請求項３に係る本発明塗布具の実施の一例を示した断面図
【図５】請求項２乃至３に係る本発明塗布具の実施の一例を示した断面図
【図６】従来の塗布具を示した断面図
【符号の説明】
１…液タンク２…チップ
３…先端口４…キャップ
４−１ …内筒４−２ …内部底
４−３ …内キャップ５…開弁部材
６…液塗布口６−１ …口縁
７…球状塗布体８…スプリング
１５…スプリング[0001]
[Industrial applications]
The present invention relates to an applicator for applying a corrective liquid to a erroneous portion (correction portion) when writing correct characters on a typographical error or the like, and in particular, a cap closely contacts an outer periphery of a tip end of a liquid tank to seal a chip. The present invention relates to an applicator configured to send compressed air in a cap compressed and compressed at the time of mounting the cap into a liquid tank to increase the internal pressure of the liquid tank.
[0002]
[Prior art]
Conventionally, when a cap is attached to the tip end of a liquid tank, the air in the cap is compressed and compressed, and the compressed air that has been compressed is fed into the liquid tank to increase the internal pressure of the liquid tank. The one shown in FIG. 6 is known (Japanese Utility Model Laid-Open No. 6-39169).
[0003]
However, as described in paragraphs (0013) to (0015) of page 7 of the published specification, this conventional applicator is used in the process of mounting the cap 20 on the distal end port 21, in which the inside of the cap 20 is removed. The cylinder 22 is brought into close contact with the outer periphery of the distal end port 21 to form a sealed space that prevents air leakage inside the inner cylinder 22, and the air in the inner cylinder 22 is compressed by reducing the volume of the sealed space. At the time when the air in the inner cylinder 22 is compressed and compressed, the tongue piece 24 which is cut and raised elastically upside down from the cylinder wall of the highly flexible valve-opening member 23 in the cap 20 is inserted into the tip. The spherical coating 26 protrudes from the tip 25 and retreats against the spring by the repulsive force of the tongue piece 24 so as to separate the spherical coating 26 from the liquid application port at the tip of the contact tip 25, whereby the spherical coating 26 The compressed air in the inner cylinder 22 is sent to the liquid tank 27 from a gap formed between the body 26 and the edge of the liquid application port, and the internal pressure of the liquid tank 27 is increased.
[0004]
[Problems to be solved by the invention]
However, in the conventional applicator, when the cap is completely mounted, the tongue that can be resiliently moved away from the spherical applicator is abutted against the tip end side of the chip and is raised in the cylinder direction of the valve opening member. In the process of attaching the cap, the spherical application body comes into contact with the tip edge of the chip by a spring and the liquid application port is closed. The repulsive force of the tongue piece pushed inward away from the tip edge of the tongue piece, the so-called elastic action, decreases in a short period of time, and the valve opening action cannot be exhibited.
[0005]
Therefore, in the conventional applicator, the repelling force of the tongue that opens the liquid application port at the tip of the tip in order to send compressed air into the liquid tank when the cap is attached becomes useless in a short period of time, and exhibits the valve opening action. Therefore, compressed air cannot be reliably fed into the liquid tank, and as a result, the liquid tank itself is pressed by a fingertip to apply a force from outside such that the liquid tank itself is depressed (deformed). It is necessary to adopt a method of increasing the internal pressure in the interior, which is not practical.
[0006]
The present invention has been made in view of such conventional circumstances, and of course, the compressed air in the cap compressed and compressed when the cap is mounted is sent into the liquid tank to increase the internal pressure of the liquid tank. To provide an applicator capable of maintaining the valve opening action of the liquid application port at the tip of the tip for feeding into the liquid tank stably for a long time, and opening the liquid application port by shaking the liquid tank. With the goal.
[0007]
[Means for achieving the object]
The technical measures taken by the present invention to achieve the above object are as follows: the inside of the tip of the chip attached to the liquid tank through the tip port is resiliently spring-loaded and comes into contact with the tip edge, and partly from the tip. In a coating tool having a configuration in which the spherical coating body is held in a protruded state, a cap is attached to the distal end port in close contact with the outer periphery of the distal end port for holding the chip, and the chip is sealed.
A valve opening member is disposed in the cap so as to be movable in the cylinder direction, and the valve opening member collides with a spherical coating body protruding from the chip by an operation of shaking the liquid tank, and the spherical coating body has a tip against a spring. It has a weight enough to allowed to retract away from the edge, further, in said cap, is disposed a spring for supporting elastically toward the opening member inside the bottom direction of the cap, the spring than the own weight of the valve opening member The gist of the invention is that the spring force is set to be strong enough to be compressed by the own weight of the valve opening member by imparting a swinging operation to the liquid tank .
[0008]
In addition, it is essential that an inner cap for sealing the chip is provided in close contact with the outer periphery of the distal end of the distal end port in the cap, and the valve opening member is disposed in the inner cap so as to be movable in the cylinder direction. And
[0009]
The gist of the present invention is that a locking flange is provided in the cap so as to receive the valve-opening member at a position where the valve-opening member does not come into contact with the edge of the tip of the tip .
[0010]
[Operation]
Thus, according to the technical means of the first aspect of the present invention, when the liquid tank is shaken after the cap is attached to the distal end port, the valve opening member in the cap repeatedly moves in the cylinder direction. The liquid application port is opened by colliding with the spherical coating body protruding from the tip of the chip, retracting the spherical coating body toward the inside of the chip so as to separate the spherical coating body from the distal end edge against the spring. Thereby, the compressed air in the cap compressed and compressed at the time of mounting is sent into the liquid tank from the liquid application port, and the internal pressure of the liquid tank is increased.
[0011]
According to the technical means described in claim 2, the valve-opening member is resiliently supported by the spring toward the inner bottom of the cap away from the tip of the tip, so that the valve-opening member can be closed when not in use. The spherical coating body does not collide with the spherical coating body protruding from the tip of the chip and is inadvertently pushed toward the inside of the chip. That is, as long as the liquid tank is not shaken, the valve opening member does not collide with the spherical coating body and the liquid application port does not open carelessly.
[0012]
According to the technical means of the third aspect, since the inner cap is brought into close contact with the outer periphery of the distal end of the distal end in the process of attaching the cap to the distal end, the compressed air effectively compressed and compressed by the inner cap is opened. The liquid can be fed into the liquid tank from the liquid application port opened by the valve member.
[0013]
【Example】
An example of an embodiment of the present invention will be described below with reference to the accompanying drawings. The liquid tank 1 has a well-known shape formed of a resin or the like into a cylindrical shape (pen type) or a container shape (bottle type) having an appropriate thickness and length. A tip port 3 for holding the chip 2 is attached to the tip by an appropriate connection such as press-fitting or screwing, or integrally with the tip port 3. A cap 4 configured to seal 2 is attached. By mounting the cap 4 in close contact with the distal end port 3 in this manner, the air in the cap 4 is compressed and compressed. Then, the liquid tank 1 is shaken after the cap 4 is attached, so that the valve-opening member 5, which will be described later, is brought into contact with the spherical coating body 7 held in a state where a part of the tip 2 protrudes from the liquid coating port 6. The spherical coating body 7 is retracted toward the inside of the chip 2 such that the spherical coating body 7 is separated from the edge 6-1 of the liquid coating port 6 against the spring 8 to open the liquid coating port 6. The compressed air in the cap 4 is sent into the liquid tank 1 to increase the internal pressure of the liquid tank 1.
[0014]
The tip 2 and the tip 3 have a known structure. That is, the chip 2 is formed in a pipe shape from an appropriate metal material, and the tapered tip opening edge is squeezed inward by caulking or the like to provide a liquid application port 6 at the tip and formed by broaching inside. A radial vertical groove 9 is provided, and the tip of the vertical groove 9 and the liquid application port 6 is repelled by a spring 8 via a pusher 10 via a pusher 10 to contact the edge 6-1 of the liquid application port 6 and The spherical application body 7 is held with a part of the spherical application body 7 protruding from the liquid application port 6 to the outside. The front end port 3 is formed separately from the rear end to the front end by a synthetic resin or the like in the same manner as the liquid tank 1 in a gradually tapered stepped cylindrical shape, or is integrally formed with the liquid tank 1, and the tip 2 is pressed into the front end. In addition to the above, an annular projection 12 is provided on the outer periphery of the cap mounting base end 3-1 side, into which an annular projection 11 described later on the inner circumference of the cap 4 is fitted when the cap 4 is mounted.
[0015]
As is well known, the cap 4 is formed of a desired material such as a synthetic resin, and has an inner peripheral surface of an opening thereof which is in close contact with the outer periphery of the distal end port 3 and which is fitted to an annular projection 12 on the outer peripheral side of the distal end port 3. 11 is provided. Further, an inner cylinder 4-1 for arranging the valve opening member 5 movably in the cylinder direction is provided inside.
[0016]
The inner cylinder 4-1 is formed concentrically with an appropriate inner diameter from the inner bottom 4-2 of the cap 4 toward the opening, and has a locking flange 13 for holding the valve opening member 5 therein at the opening edge. Is provided inward. The protruding length (height) L of the inner cylinder 4-1 is formed so as to be positioned at the distal end portion of the chip 2 inside the cap 4 when the cap 4 is attached to the distal end opening 3. When the liquid tank 1 is shaken, the locking flange 13 causes the valve-opening member 5 to collide with the spherical coating 7 protruding from the liquid coating port 6 at the tip of the chip 2, and the spherical coating 7 is pressed against the spring 8 by the liquid. The liquid application port 6 is retracted toward the inside of the chip 2 so as to be separated from the rim 6-1 of the application port 6 so that the liquid application port 6 is reliably opened. The edge 6-1 is provided at the opening edge of the inner cylinder 4-1 so as to receive the valve opening member 5 at a position where it does not abut (collide) (see FIG. 3). That is, the valve application member 5 is provided so as to receive the valve opening member 5 at a position where the liquid application port 6 is not closed by the valve opening member 5.
[0017]
The valve-opening member 5 moves the inside of the inner cylinder 4-1 in the cylinder direction by the action of shaking the liquid tank 1 and collides with the spherical coating body 7 protruding from the liquid coating port 6, and the spherical coating body 7 is The opening of the liquid application port 6 is pushed and retracted toward the inside of the chip 2 away from the edge 6-1 of the liquid application port 6 in opposition to the inner surface of the inner cylinder 4-1. It is formed in a column shape (rod shape) having an outer diameter approximately the same diameter and having a length such that it can move in the inner cylinder 4-1 in the cylinder direction, and is disposed in the inner cylinder 4-1 so as to be movable in the cylinder direction. You. The weight of the valve-opening member 5 is smaller than the spring force of the spring 8 that repels the spherical coating body 7 in the direction of the liquid application port 6. The spherical coating body 7 is formed so as to be pushed back toward the inside of the chip 2 which is separated from the liquid coating port 6 by overcoming the spring force. That is, the movement of the valve opening member 5 due to the inertial force acting when the liquid tank 1 is shaken is promoted, and the valve opening member 5 pushes the spherical coating body 7 inward of the chip 2 by overcoming the spring force of the spring 8 and retreats. Form to the required weight.
[0018]
Note that the valve opening member 5 is not limited to a columnar shape, and may have an appropriate shape such as a spherical shape. In short, when the liquid tank 1 is shaken in the cylinder direction, the inside of the inner cylinder 4-1 in the cap 4 is reciprocated in the cylinder direction, and the spherical application body 7 projecting from the liquid application port 6 at the tip of the tip 2 is applied to the spring 8. Any shape can be used as long as it can be pushed and retracted toward the inside of the chip 2 away from the edge 6-1 of the liquid application port 6 in opposition. Further, even when the valve-opening member 5 is placed on the spherical coating body 7 protruding from the liquid coating port 6 at the tip of the chip 2 without shaking the liquid tank 1, the chip 2 where the spherical coating body 7 separates from the liquid coating port 6 To the extent that it does not move inward, that is, it is lighter than the spring force of the spring 8, and in a state where the operation of swinging the liquid tank 1 is given, it overcomes the spring force of the spring 8 and causes the spherical application body 7 to move the liquid application port 6. If it can be formed so as to have an appropriate weight that can be pushed and retracted toward the inside of the separated chip 2, it can be formed of a desired material such as a metal or a resin, and can be freely used.
[0019]
Next, a description will be given of an example of use of the applicator according to the present embodiment configured as described above. After the cap 4 is pushed into the distal end port 3 and mounted, the liquid tank 1 is shaken in the cylinder direction. That is, when the liquid tank 1 is shaken by the stirrer 14 provided in the liquid tank 1 to stir the correction liquid M, the valve-opening member 5 in the inner cylinder 4-1 moves in the cylinder direction and the tip 2 of the tip 2 Collides with the spherical coating body 7 protruding from the liquid coating port 6 of the liquid application port 6 and pushes the spherical coating body 7 inward against the spring 8 so as to separate from the edge 6-1 of the liquid coating port 6 against the spring 8. The liquid application port 6 is opened by retreating (the state of FIG. 3). Therefore, the opening of the liquid application port 6 is reliably performed by the collision of the valve opening member 5. Thereby, the compressed air in the cap 4 compressed and compressed in the process of mounting the cap 4 is sent into the liquid tank 1 from the gap between the rim 6-1 of the liquid application port 6 and the spherical application body 7 which have been opened. As a result, the internal pressure of the liquid tank 1 can be reliably increased. When the operation of shaking the liquid tank 1 is stopped, the spherical coating body 7 is brought into contact with the rim 6-1 of the liquid application port 6 by the spring 8 to close the liquid application port 6 (to the state shown in FIG. 2). Returned).
[0020]
FIG. 4 shows that the inside of the cap 4 is integrally provided with an inner cap 4-3 for sealing the chip 2 by bringing the tip 2 into close contact with the outer peripheral portion at the time of attachment to the distal end opening 3 and for effectively compressing and compressing air. The compressed air compressed and compressed by the inner cap 4-3 is injected into the liquid tank 1 from the gap between the rim 6-1 of the liquid application port 6 opened by the collision of the valve opening member 5 and the spherical application body 7. This is another embodiment in which the internal pressure of the liquid tank 1 is increased by feeding the liquid tank 1 effectively.
[0021]
The inner cap 4-3 is integrally connected to the inner cylinder 4-1 by extending the opening edge of the inner cylinder 4-1 toward the opening of the cap 4 at the outer diameter on the distal end side of the distal port 3. When the cap 4 is attached to the distal end port 3, the tip 4 is in close contact with the outer periphery of the distal end side of the distal end port 3 to seal the chip 2 and to effectively compress and compress the air in the cap 4.
[0022]
In FIG. 5, the valve opening member 5 in the inner cylinder 4-1 is resiliently directed toward the inner bottom 4-2 of the cap 4. That is, a spring 15 that resiliently moves in a direction away from the valve opening member 5 from the liquid application port 6 at the tip of the tip 2 is disposed in the inner cylinder 4-1 so that the spherical application body 7 opens when not in use. This is another embodiment in which the liquid application port 6 is prevented from being carelessly opened by being pushed inward by the member 5 toward the inside of the chip 2.
[0023]
The spring 15 always serves to resiliently support the valve-opening member 5 in the direction of the inner bottom 4-2 of the cap 4. The spring 15 is stronger than its own weight and swings the liquid tank 1. The spring force is set to such an extent that the valve can be compressed, and the spring is elastically mounted between the stepped valve-opening member 5 having a changed thickness and the locking edge 13 of the inner cylinder 4-1 to open the valve. The member 5 is resiliently supported in the direction of the inner bottom 4-2 of the cap 4.
[0024]
Thus, according to the applicator of this embodiment, the valve-opening member 5 collides with the spherical coating body 7 protruding from the liquid coating port 6 at the tip of the tip 2 when not in use, etc. Is not inadvertently pushed toward the inside of the chip 2. That is, unless the liquid tank 1 is shaken as in the above-described embodiment in order to stir the correction liquid M by the stirrer 14 provided in the liquid tank 1, the valve opening member 5 moves the spherical coating body 7 toward the chip 2. The liquid application port 6 is not carelessly opened by colliding with the spherical application body 7 by the collision force pushing toward the spherical application body. Therefore, there is no fear that the correction liquid M flows out of the liquid application port 6 carelessly.
[0025]
【The invention's effect】
Since the applicator of the present invention is constituted as described above, the following effects are obtained.
When the liquid tank is shaken after the cap is attached to the tip opening, the valve-opening member in the cap repeatedly moves in the cylinder direction and collides with the spherical coating body protruding from the tip of the chip, and the spherical coating body is moved against the spring to the tip. The liquid application port is reliably opened by retracting toward the inside of the chip separated from the edge.
[0026]
Also, since the valve-opening member is resiliently supported by the spring toward the bottom of the inside of the cap away from the tip of the tip, the valve-opening member collides with the spherical coating body protruding from the tip of the tip when not in use. Thus, the spherical coated body is not inadvertently pushed and retracted toward the inside of the chip. That is, the valve opening member does not collide with the spherical coating body and does not inadvertently open the liquid coating port unless the liquid tank is shaken. As a result, an effect of preventing the correction fluid from inadvertently flowing out can be expected.
[0027]
In addition, since the inner cap is brought into close contact with the outer periphery of the distal end of the distal port during the process of mounting the cap on the distal port, the liquid application that has caused the compressed air effectively compressed and compressed by the inner cap to be opened by the collision of the valve opening member. It can be fed into the liquid tank through the mouth.
[0028]
Therefore, according to the applicator of the present invention, the compressed air in the cap that has been compressed and compressed when the cap is mounted is sent into the liquid tank to increase the internal pressure of the liquid tank. By the operation of shaking the liquid tank to stir the correction liquid by the stirrer, the liquid application port at the tip of the chip can be reliably opened, and the compressed air in the cap can be reliably sent to the liquid tank. Therefore, it is ensured that the internal pressure of the liquid tank rises due to the compressed air. Further, since the valve opening member is made to collide with the valve opening member by the action of swinging the liquid tank with respect to the conventional valve opening structure by the elastic action of the applicator, the valve opening effect can be stably maintained for a long period of time. . Thus, the applicator is excellent in practicality and excellent in handling.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing an embodiment of the applicator of the present invention according to claim 1. FIG. 2 is an enlarged cross-sectional view showing a main part. FIG. FIG. 4 is an enlarged cross-sectional view showing a state in which the spherical coating body is pushed and retracted (valve-opened state). FIG. 4 is a cross-sectional view showing an embodiment of the coating tool of the present invention according to claim 3; FIG. 6 is a cross-sectional view showing an example of an embodiment of the applicator according to the present invention according to 2 or 3. FIG. 6 is a cross-sectional view showing a conventional applicator.
DESCRIPTION OF SYMBOLS 1 ... Liquid tank 2 ... Tip 3 ... Tip port 4 ... Cap 4-1 ... Inner cylinder 4-2 ... Inner bottom 4-3 ... Inner cap 5 ... Valve opening member 6 ... Liquid application port 6-1 ... Edge 7 ... Spherical coated body 8 ... Spring 15 ... Spring

Claims

A spherical coating body is held inside the tip of the chip mounted on the liquid tank through the tip port with the spring being repelled by the spring and in contact with the tip edge and partially protruding from the tip to hold the tip. In an applicator having a configuration in which a cap is attached to the distal end port so as to closely seal the chip in close contact with the outer periphery of the distal end port,
A valve opening member is disposed in the cap so as to be movable in the cylinder direction, and the valve opening member collides with a spherical coating body protruding from the chip by an operation of shaking the liquid tank, and the spherical coating body has a tip against a spring. have a weight of the extent to which allowed to retreat away from the edge,
Further, a spring for resiliently supporting the valve-opening member toward the bottom of the inside of the cap is disposed in the cap, and the spring is stronger than its own weight and swings to the liquid tank. An applicator characterized in that the spring force is set to such a degree that the valve is compressed by its own weight .

In the applicator according to claim 1,
An applicator characterized in that an inner cap for sealing the chip is provided in close contact with the outer periphery of the distal end of the distal end port in the cap, and the valve opening member is disposed in the inner cap so as to be movable in the cylinder direction. .

In the writing instrument according to claim 1 or 2,
An applicator characterized in that a locking flange is provided in the cap so as to receive the valve-opening member at a position where the valve-opening member does not abut the edge of the tip of the tip .