JP5484143B2

JP5484143B2 - Knock-type applicator

Info

Publication number: JP5484143B2
Application number: JP2010066526A
Authority: JP
Inventors: 博明小山
Original assignee: Mitsubishi Pencil Co Ltd
Current assignee: Mitsubishi Pencil Co Ltd
Priority date: 2010-03-23
Filing date: 2010-03-23
Publication date: 2014-05-07
Anticipated expiration: 2030-03-23
Also published as: JP2011194820A

Description

本発明は、ノック操作によって化粧料、修正液、インキ等、特に、高粘度の化粧液等の液状の内容物を繰出して塗付体に供給するノック式塗布具に関する。 The present invention relates to a knock-type applicator that dispenses liquid contents such as cosmetics, correction liquids, inks, etc., in particular, high-viscosity cosmetic liquids, and supplies them to a coated body by a knocking operation.

従来、ノック式化粧品、ノック式筆記具等のノック式繰出し容器では、軸筒内の収容部に内容物を収容して、使用者がノックすることによって、その内容物の繰出しを行っている。その繰出しの際には、軸筒後端に設けたノック部をノックすることによってカム体を介してネジ棒を前進させ、ネジ棒前端のピストンを前進させることによって、上記の内容物を塗付体に向けて繰出している。 Conventionally, in knock-type dispensing containers such as knock-type cosmetics and knock-type writing instruments, the contents are housed in a housing portion in the shaft tube, and the contents are fed by being knocked by the user. At the time of feeding, the above-mentioned contents are applied by advancing the screw rod through the cam body by knocking the knock portion provided at the rear end of the shaft cylinder, and advancing the piston at the front end of the screw rod. It is paying out toward the body.

ノック式塗布具に関して、例えば、特開２００１−２３２２７３号（特許文献１）では、ノック体をノックさせることにより傾斜溝に沿ってノックカムを回転させ、ノックカムの回転によって回転カムを介してネジ棒を回転させる。そして、そのネジ棒の前端に設けたピストンをタンク内で前進させてタンク内の液体を先端塗付体に向けて押し出す構造になっている。 Regarding a knock type applicator, for example, in Japanese Patent Application Laid-Open No. 2001-232273 (Patent Document 1), a knock cam is rotated along an inclined groove by knocking a knock body, and the screw rod is rotated via the rotating cam by rotation of the knock cam. Rotate. The piston provided at the front end of the screw rod is advanced in the tank to push the liquid in the tank toward the tip coating body.

また、特開２００５−２０６１６５号（特許文献２）では、本体に対して着脱可能に装填されたカートリッジと、カートリッジ内のピストンを前方に押し出す操作体とを設け、チャック内面の雌ネジに螺合したネジ棒の先端にピストンを設けて、操作体の回転によってネジ棒を回転させて前進させ、これによってピストンを前進させて内容物を繰出す構造となっている。 In Japanese Patent Application Laid-Open No. 2005-206165 (Patent Document 2), a cartridge that is detachably mounted on the main body and an operating body that pushes the piston in the cartridge forward are provided and screwed into a female screw on the inner surface of the chuck. A piston is provided at the tip of the screw rod, and the screw rod is rotated and moved forward by rotation of the operating body, whereby the piston is advanced to feed out the contents.

また、国際公開ＷＯ２００９／１２５８６８号（特許文献３）では、天冠の力を回転の力に変換する機構部と、軸本体に固定したネジ体と、ネジ体に螺合したネジ棒を有し、上記機構部が変換した回転の力（カムの回転の力）でネジ体を介してネジ棒を前進させ、収容部内の内容物をピストンで繰出す構造になっている。 Further, International Publication No. WO2009 / 125868 (Patent Document 3) has a mechanism portion that converts the crown force into a rotational force, a screw body fixed to the shaft body, and a screw rod screwed into the screw body. The structure is such that the screw rod is advanced through the screw body by the rotational force (cam rotational force) converted by the mechanism portion, and the contents in the housing portion are fed out by the piston.

なお、特開２００８−１７９０００号（特許文献４）は、ノック機構を備えた筆記具において、ノック部内と軸筒の間に外界から密閉され、かつノック部の押し出し操作により容積が変化するダンパー空間を設けて、通常の動作を妨げずに衝撃緩衝作用を実現可能な筆記具を開示している。 Japanese Patent Laid-Open No. 2008-179000 (Patent Document 4) is a writing instrument provided with a knock mechanism, in which a damper space that is sealed from the outside between the inside of the knock part and the shaft tube and whose volume is changed by the pushing operation of the knock part. There is disclosed a writing instrument that is provided and can realize an impact buffering action without disturbing normal operation.

特開２００１−２３２２７３号公報JP 2001-232273 A 特開２００５−２０６１６５号公報JP 2005-206165 A 国際公開ＷＯ２００９／１２５８６８号公報International Publication WO2009 / 125868 特開２００８−１７９０００号公報JP 2008-179000 A

しかしながら、高粘度の内容物の繰出しの場合に、ノック力の損失を防ぎつつ操作感をさらに軽くし、それと共に、部品点数を削減しかつ製造を容易化するという要請があり、従来はその要請に充分に応えなかった。 However, in the case of feeding high-viscosity contents, there is a request to further reduce the feeling of operation while preventing loss of knocking force, and to reduce the number of parts and facilitate manufacturing. I did not respond enough.

本発明は、斯かる実情に鑑み、高粘度の内容物の繰出す際に、ノック力の損失を防ぎつつ操作感をさらに軽くでき、それと共に、部品点数を削減しかつ製造を容易化できるノック式塗布具を提供しようとするものである。 In view of such circumstances, the present invention makes it possible to further reduce the feeling of operation while preventing loss of knocking force when feeding high-viscosity contents, and to reduce the number of parts and facilitate manufacturing. It is intended to provide a formula applicator.

本発明は、塗布液を軸筒内に貯蔵して、軸筒内を摺動するピストンの後部に周面が雄ネジのネジ軸を係合させ、繰出し機構への繰出し操作によってネジ軸を介してピストンを前進させて軸筒内の塗布液を軸筒先端の塗付体に供給するようにしたノック式塗布具において、
前記繰出し機構は、
前部および後部にカム部が形成された回転カム体と、
回転カム体の後部のカム部に噛合うためのカム部が前部に形成され、かつ、側面部に突起部の形成された伝達カム体と、
前記伝達カム体の突起部をガイドするガイド溝が軸方向に対して斜めに形成され、かつ、前記軸筒との相対回転が規制された繰出し体と、
前記繰出し体を後向きに弾発しおよび伝達カム体を前向きに弾発するスプリングと、
後方向きのカム部が形成され、かつ、軸筒との相対回転の規制された固定カム体とを有したものであって、
前記回転カム体および固定カム体のうちの一方にネジ軸との相対回転が規制される係止構造を形成し、他方に前記ネジ軸に螺合するネジ部を設けて、前記回転カム体の回転を係止構造、ネジ部およびネジ軸の協働によって前記ネジ軸を軸筒に対して前進させる運動に変換してピストンを前進させるものであり、
ノック操作により前記繰出し体を前進させたときは、前記ガイド溝および突起部によって当該前進動作を伝達カム体の一方向への回転動作に変換し、伝達カム体のカム部が回転カム体の後部のカム部に噛合って、前記伝達カム体の回転で回転カム体を回転作動させることによって、前記ネジ軸を前進させてピストンを前進させ、
一方、前記ノック操作で前記繰出し体を前進させた後に当該ノック操作を解除したことにより、繰出し体がスプリングの弾発力で後退し、前記ガイド溝および突起部によって当該後退動作を伝達カム体の他方向への回転動作に変換して原位置に復帰し、それと共に、回転カム体の前部のカム部が前記固定カム体のカム部に噛合って、前記回転カム体の回転作動が規制されて前記ネジ軸およびピストンの作動が規制されており、
前記固定カム体の後部にはそのカム部を囲んで後方に向かう筒状部が延在し、この筒状部内に回転カム体、伝達カム体、繰出し体およびスプリングを配置したことを特徴とするノック式塗布具である。 The present invention stores a coating liquid in a shaft cylinder, engages a screw shaft having a male thread on the rear part of a piston that slides in the shaft cylinder, and moves the screw shaft through the screw shaft by a feeding operation to a feeding mechanism. In the knock type applicator that advances the piston to supply the coating liquid in the shaft cylinder to the coating body at the tip of the shaft cylinder,
The feeding mechanism is
A rotating cam body with cam portions formed at the front and rear, and
A transmission cam body in which a cam portion for meshing with a rear cam portion of the rotating cam body is formed at a front portion, and a projection is formed on a side surface portion;
A feeding body in which a guide groove for guiding the protrusion of the transmission cam body is formed obliquely with respect to the axial direction, and relative rotation with the shaft cylinder is restricted;
A spring that repels the feeding body backward and a transmission cam body forwards;
A rear-facing cam portion is formed, and a fixed cam body whose relative rotation with the shaft cylinder is restricted,
One of the rotating cam body and the fixed cam body is formed with a locking structure that restricts relative rotation with the screw shaft, and the other is provided with a screw portion that is screwed onto the screw shaft, The rotation is converted into a movement to advance the screw shaft with respect to the shaft cylinder by the cooperation of the locking structure, the screw portion and the screw shaft, and the piston is advanced.
When the feeding body is advanced by a knocking operation, the forward movement is converted into a rotational movement in one direction of the transmission cam body by the guide groove and the projection, and the cam portion of the transmission cam body is the rear portion of the rotation cam body. The rotary cam body is rotated by the rotation of the transmission cam body, the screw shaft is advanced to advance the piston,
On the other hand, by releasing the knocking operation after the feeding body has been advanced by the knocking operation, the feeding body is retracted by the spring force of the spring, and the retraction operation is performed by the guide groove and the protruding portion of the transmission cam body. It is converted into rotational movement in the other direction and returned to the original position, and at the same time, the cam portion of the front portion of the rotating cam body meshes with the cam portion of the fixed cam body, and the rotational operation of the rotating cam body is restricted. And the operation of the screw shaft and the piston is restricted ,
A cylindrical portion extending rearward around the cam portion extends at the rear portion of the fixed cam body, and a rotating cam body, a transmission cam body, a feeding body, and a spring are disposed in the cylindrical portion. It is a knock type applicator.

本発明においては、ネジ軸は、横断面視で周の一部を切り欠いた異形形状を呈しており、
前記回転カム体には、ネジ軸を通してネジ軸との相対回転を規制しかつ軸方向移動可能にする異形孔が形成され、
伝達カム体のカム部および前記回転カム体の後ろ向きカム部は、互いが当接状態の際に、伝達カム体が一方向に回転したときに噛み合い、逆に、伝達カム体が他方向に回転したときに噛み合いが容易に外れる鋸歯形状に形成されており、
前記固定カム体には、中心軸部にネジ軸の雄ネジに螺合する雌ネジが形成され、後方向きのカム部に前記回転カム体の前向きカム部が対向し、
回転カム体の前向のカム部および前記固定カム体の後方向きのカム部は、互いが当接状態の際に、回転カム体が他方向に回転したときに噛み合い、逆に、回転カム体が一方向に回転したときに噛み合いが容易に外れる鋸歯形状に形成されており、
前記繰出し体が固定カム体との相対回転の規制された状態で、軸方向に一定範囲で移動可能に配設され、
前記繰出し体を前方向に押圧操作したときに、前記スプリングの弾発力に抗して前記繰出し体が前方に移動することによってガイド溝に沿って突起部が摺動して前記伝達カム体が一方向に回転し、
伝達カム体の一方向の回転が、伝達カム体および回転カム体の互いに当接するカム部同士が噛合い、かつ、回転カム体の前方向きのカム部および前記固定カム体の後方向きのカム部の噛み合いが外れることにより回転カム体の回転に伝達され、この回転カム体の回転によってネジ軸が回転して前記固定カム体の雌ネジの作用によって前進し、
前記繰出し体の押圧操作を解除したときに、前記スプリングの弾発力により繰出し体が後方に移動することによってガイド溝に沿って突起部が摺動して前記伝達カム体が他方向に回転し、
伝達カム体および回転カム体の互いに当接するカム部同士の噛合いが外れ、かつ、回転カム体の前方向きのカム部および固定カム体の後方向きのカム部同士が噛み合うことにより、伝達カム体の他方向への回転が回転カム体に伝達されないようにしたことが好適である。 In the present invention, the screw shaft has an irregular shape in which a part of the circumference is cut out in a cross-sectional view,
The rotating cam body is formed with a deformed hole that restricts relative rotation with the screw shaft through the screw shaft and is axially movable,
The cam portion of the transmission cam body and the rearward cam portion of the rotating cam body are engaged when the transmission cam body rotates in one direction when they are in contact with each other, and conversely, the transmission cam body rotates in the other direction. Is formed in a sawtooth shape that can be easily disengaged when
The fixed cam body is formed with a female screw that is threadedly engaged with a male screw of a screw shaft at a central shaft portion, and a forward cam portion of the rotating cam body is opposed to a rearward cam portion,
The forward cam portion of the rotating cam body and the rearward cam portion of the fixed cam body are engaged when the rotating cam body rotates in the other direction when they are in contact with each other. Is formed in a sawtooth shape that easily disengages when rotated in one direction,
In a state where the relative rotation with the fixed cam body is restricted, the feeding body is disposed so as to be movable within a certain range in the axial direction.
When the feeding body is pushed forward, the feeding body moves forward against the spring force of the spring, so that the protrusion slides along the guide groove and the transmission cam body Rotate in one direction,
Rotation in one direction of the transmission cam body is such that the cam portions of the transmission cam body and the rotating cam body that are in contact with each other mesh with each other, and the front cam portion of the rotating cam body and the rear cam portion of the fixed cam body. Is transmitted to the rotation of the rotating cam body, the screw shaft rotates by the rotation of the rotating cam body, and advances by the action of the female screw of the fixed cam body,
When the pressing operation of the feeding body is released, the feeding body is moved rearward by the elastic force of the spring, so that the protruding portion slides along the guide groove and the transmission cam body rotates in the other direction. ,
The transmission cam body and the rotating cam body are disengaged from each other, and the cam portion facing the front of the rotating cam body and the cam portion facing the rear of the fixed cam body are engaged with each other. It is preferable that the rotation in the other direction is not transmitted to the rotating cam body.

本発明において、ネジ軸は、横断面視で周の一部を切り欠いた異形形状を呈しており、
前記回転カム体には、ネジ軸を通してネジ軸との相対回転を規制しかつ軸方向移動可能にする異形孔が形成され、
前記固定カム体には、前方部に中心軸部にネジ軸の雄ネジに螺合する雌ネジ部が前方に突出形成された概略筒状を呈し、
その雌ネジ部は前端から後方向きに切り込みが形成されたものであって、ネジ軸の装着の際に雌ネジ部は切り込みが開くように弾性変形して全体が拡径するものであることが好適である。 In the present invention, the screw shaft has an irregular shape in which a part of the circumference is cut out in a cross-sectional view,
The rotating cam body is formed with a deformed hole that restricts relative rotation with the screw shaft through the screw shaft and is axially movable,
The fixed cam body has a substantially cylindrical shape in which a female screw portion that is screwed into a male screw of a screw shaft on a central shaft portion is protruded forward at a front portion ,
The female threaded portion has a notch formed rearward from the front end, and when the screw shaft is mounted, the female threaded portion is elastically deformed so that the notch is opened and the entire diameter is expanded. Is preferred.

本発明において、前記繰出し体のガイド溝は、当該ガイド溝に突起部を嵌めて周方向に伝達カム体を回転させる範囲が、伝達カム体および回転カム体の後ろ向きのカム部と、前記回転カム体の前向きのカム部および前記固定カム体の後ろ向きのカム部とにおける各カム部の歯のピッチよりも長くなるように形成したことが好適である。
本発明において、伝達カム体および回転カム体の後ろ向きのカム部と、前記回転カム体の前向きのカム部および前記固定カム体の後ろ向きのカム部とにおける各カム部の歯のピッチが同じであり、かつ、回転カム体の後ろ向きのカム部と前向きのカム部の歯の位相がズレていることが好適である。
本発明において、繰出し体の外周と固定カム体の筒状部内周との間にリング状の弾性体が周状に位置していることが好適である。 In the present invention, the guide groove of the feeding body has a range in which a protrusion is fitted in the guide groove and the transmission cam body is rotated in the circumferential direction. It is preferable that the cam portion is formed so as to be longer than the tooth pitch of each cam portion between the cam portion facing forward of the body and the cam portion facing backward of the fixed cam body.
In the present invention, the pitches of the teeth of the cam portions in the rearward cam portions of the transmission cam body and the rotary cam body, and the forward cam portion of the rotary cam body and the rearward cam portion of the fixed cam body are the same. In addition, it is preferable that the teeth of the rear cam portion and the front cam portion of the rotating cam body are out of phase.
In the present invention, it is preferable that a ring-shaped elastic body is located in a circumferential shape between the outer periphery of the feeding body and the inner periphery of the cylindrical portion of the fixed cam body.

本発明のノック式塗布具によれば、繰出し機構において、繰出し体のガイド溝が軸方向に対して角度を持って斜めに形成されていて、ノック操作により前記繰出し体を前進させたときは、前記ガイド溝および突起部によって当該前進動作を伝達カム体の一方向への回転動作に変換し、伝達カム体のカム部が回転カム体の後部のカム部に噛合って、前記伝達カム体の回転で回転カム体を回転作動させて前記ネジ軸の前進でピストンが前進し、一方、ノック操作の解除により、スプリングの弾発力で繰出し体を後退させたときは、前記ガイド溝および突起部によって当該後退動作を伝達カム体の他方向への回転動作に変換して原位置に復帰し、かつ、回転カム体の前部のカム部が前記固定カム体のカム部に噛合って、前記回転カム体の回転作動が規制されて前記ネジ軸およびピストンの作動が規制されたので、繰出し体のノック操作したときの力をピストンの押圧力に力のロス無く伝えることができ、高粘度の内容物の繰出しの場合に、ノック力の損失を防ぎつつ操作感をさらに軽くできる。 According to the knock type applicator of the present invention, in the feeding mechanism, the guide groove of the feeding body is formed obliquely with an angle with respect to the axial direction, and when the feeding body is advanced by a knock operation, The forward movement is converted into a rotational movement in one direction of the transmission cam body by the guide groove and the protrusion, and the cam portion of the transmission cam body meshes with the cam portion of the rear portion of the rotation cam body. When the rotating cam body is rotated to rotate and the piston is advanced by advancement of the screw shaft, on the other hand, when the knockout operation is released and the extension body is moved backward by the spring force of the spring, the guide groove and the protrusion To convert the backward movement into a rotational movement in the other direction of the transmission cam body and return to the original position, and the front cam portion of the rotary cam body meshes with the cam portion of the fixed cam body, The rotating operation of the rotating cam body Therefore, the operation of the screw shaft and the piston is restricted, so that the force when the feeding body is knocked can be transmitted to the pressing force of the piston without loss of force. The operation feeling can be further reduced while preventing loss of knocking force.

それと共に、固定カム体の後部に後方向きのカム部を設けたので、このカム部を別体に設けていないことから、別体に設けた従来品（例えば、特開２００１−２３２２７３号公報）に比較して部品点数を削減できかつ製造を容易化できる。 At the same time, since the rear cam portion is provided at the rear portion of the fixed cam body, this cam portion is not provided separately, so that a conventional product provided separately (for example, Japanese Patent Application Laid-Open No. 2001-232273). Compared to the above, the number of parts can be reduced and manufacturing can be facilitated.

なお、前記固定カム体の後部にはそのカム部を囲んで後方に向かう筒状部が延在し、この筒状部内に、回転カム体、伝達カム体、繰出し体およびスプリングを配置してコンパクト化および一体化を図ることができ、一体化できることから部組し易く、かつ、部組して軸筒に入れればよいので製造の容易化、生産コストの低減かを確実に図ることができる。 A cylindrical portion extending rearward and surrounding the cam portion extends at the rear portion of the fixed cam body, and a rotating cam body, a transmission cam body, a feeding body, and a spring are arranged in the cylindrical portion to make a compact. Since it can be integrated and can be integrated, it is easy to assemble, and it is only necessary to assemble the components and put them in the shaft cylinder. Therefore, it is possible to surely facilitate manufacture and reduce production costs.

また、繰出し体を前方向に押圧操作したときに、前記スプリングの弾発力に抗して前記繰出し体が前方に移動することによってガイド溝に沿って突起部が摺動して前記伝達カム体が一方向に回転し、伝達カム体の一方向の回転が、伝達カム体および回転カム体の互いに対向するカム部同士が噛合い、かつ、回転カム体の前方向きのカム部および前記固定カム体の後方向きのカム部の噛み合いが外れることにより回転カム体の回転に伝達され、この回転カム体の回転によってネジ軸が回転し前記ネジ部の雌ネジの作用によって前進し、
前記繰出し体の押圧操作を解除したときに、前記スプリングの弾発力により繰出し体が後方に移動することによってガイド溝に沿って突起部が摺動して前記伝達カム体が他方向に回転し、伝達カム体および回転カム体の互いに当接するカム部同士の噛合いが外れ、かつ、回転カム体の前方向きのカム部および固定カム体の後方向きのカム部が噛み合うようにしたことにより、伝達カム体の他方向への回転が回転カム体に伝達されないようにして繰出し体の押圧操作（ノック操作）の繰り返しによってピストンをスムーズに押し出すことができる。 Further, when the feeding body is pressed forward, the feeding cam body moves forward against the spring force of the spring, so that the projecting portion slides along the guide groove and the transmission cam body. Is rotated in one direction, the transmission cam body is rotated in one direction, the cam portions of the transmission cam body and the rotating cam body facing each other mesh with each other, and the forward cam portion of the rotating cam body and the fixed cam. Disengagement of the cam portion facing the rear of the body is transmitted to the rotation of the rotating cam body, the screw shaft rotates by the rotation of the rotating cam body, and advances by the action of the female screw of the screw section,
When the pressing operation of the feeding body is released, the feeding body is moved rearward by the elastic force of the spring, so that the protruding portion slides along the guide groove and the transmission cam body rotates in the other direction. The cam portions of the transmission cam body and the rotating cam body that come into contact with each other are disengaged, and the cam portion facing the front of the rotating cam body and the cam portion facing the rear of the fixed cam body are engaged with each other. The piston can be smoothly pushed out by repeating the pressing operation (knock operation) of the feeding body so that the rotation of the transmission cam body in the other direction is not transmitted to the rotating cam body.

本発明において、ネジ軸は、横断面視で周の一部を切り欠いた異形形状を呈しており、
前記回転カム体には、ネジ軸を通してネジ軸との相対回転を規制しかつ軸方向移動可能にする異形孔が形成され、前記固定カム体には、前方部に中心軸部にネジ軸の雄ネジに螺合する雌ネジが雌ネジ部が前方に突出形成された概略筒状を呈したものにして、その雌ネジ部は前端から後方向きに切り込みが形成されたものであって、ネジ軸の装着の際に雌ネジ部は切り込みが開くように弾性変形して全体が拡径するものにすれば、ネジ軸を回して雌ネジ部にネジ込む必要なく組付けができるので、製造ラインにおいて容易かつ確実な装着を可能にして作業負荷を格段に軽減させることができる。 In the present invention, the screw shaft has an irregular shape in which a part of the circumference is cut out in a cross-sectional view,
The rotating cam body is formed with a deformed hole that restricts relative rotation with the screw shaft through the screw shaft and is movable in the axial direction, and the fixed cam body has a male shaft of the screw shaft at the center shaft portion at the front portion. The female screw that is screwed into the screw has a substantially cylindrical shape in which the female screw part protrudes forward, and the female screw part has a notch formed rearward from the front end. If the female screw part is elastically deformed so that the notch is opened and the entire diameter is expanded, the assembly can be performed without the need to rotate the screw shaft into the female screw part. Easy and reliable mounting is possible, and the workload can be greatly reduced.

また、本発明において、伝達カム体および回転カム体の後ろ向きのカム部と、前記回転カム体の前向きのカム部および前記固定カム体の後ろ向きのカム部とにおける各カム部の歯のピッチが同じであり、かつ、回転カム体の後ろ向きのカム部と前向きのカム部の歯の位相がズレて形成すれば、繰出し体のノック操作前に回転カム体のカム歯が筒状部のカム歯に嵌り込んでいる状態であり、繰出し体のノック操作時に伝達カム体のカム部が回転カム体の後ろ向きの歯と位相がずれているので、繰出し体の前進で伝達カム体か回転する。そして、繰出し体のノック解除時に確実に回転カムとカム部同士が噛み合い、回転カムの戻り回転するのを確実に防ぐことができる。 Further, in the present invention, the tooth pitch of each cam portion is the same in the rearward cam portion of the transmission cam body and the rotary cam body, and the forward cam portion of the rotary cam body and the rearward cam portion of the fixed cam body. And the cam teeth of the rotating cam body are shifted to the cam teeth of the cylindrical portion before the knocking operation of the feeding body. Since the cam portion of the transmission cam body is out of phase with the rearward teeth of the rotating cam body when the feeding body is knocked, the transmission cam body rotates as the feeding body advances. And it can prevent reliably that a rotation cam and a cam part mesh | engage and the return rotation of a rotation cam at the time of knock release of a feeding body.

また、本発明において、繰出し体の外周と固定カム体の筒状部内周間にリング状の弾性体が周状に位置しているものにすれば、リング状の弾性体が繰出し体から後方への気密を確保して内容物の乾燥や変質を確実に防止することができる等の優れた効果を奏し得る。 In the present invention, if the ring-shaped elastic body is located between the outer periphery of the feeding body and the inner periphery of the cylindrical portion of the fixed cam body, the ring-shaped elastic body moves backward from the feeding body. It is possible to achieve excellent effects such as ensuring the airtightness of the contents and reliably preventing the contents from being dried and altered.

本発明の実施形態に係る塗布具のキャップ装着状態の全体図で、（ａ）が斜視図、（ｂ）が側方視図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a general view of the cap mounting state of the applicator which concerns on embodiment of this invention, (a) is a perspective view, (b) is a side view. 図１の塗布具のキャップを外した状態の全体図で、（ａ）が斜視図、（ｂ）が側方視図である。It is a general view in the state where the cap of the applicator of FIG. 1 was removed, (a) is a perspective view, (b) is a side view. 同塗布具の作動を説明する全体縦断面図で、（ａ）がピストンの前進限状態（塗付繰出し終了時状態）、（ｂ）が繰出し体の非ノック時の状態（通常時）、（ｃ）が繰出し体のノック時の状態をそれぞれ示す。It is the whole longitudinal cross-sectional view explaining the action | operation of the applicator, (a) is a forward limit state (state at the time of application | coating delivery completion | finish) of a piston, (b) is the state at the time of non-knocking of a delivery body (normal time), ( c) shows the state when the feeding body is knocked. 同塗布具の繰出し機構における、ピストン、ネジ体、ネジ軸、回転カム体、伝達カム体、スプリング、および繰出し体を部組した状態の説明図であって、（ａ）が一側面側から見た斜視図、（ｂ）が他側面側から見た斜視図、（ｃ）が（ａ）状態での縦断面図、（ｄ）が同側面図、（ｅ）が（ｂ）状態での縦断面図、（ｆ）が同側面図である。It is explanatory drawing of the state which assembled the piston, the screw body, the screw shaft, the rotation cam body, the transmission cam body, the spring, and the feeding body in the feeding mechanism of the applicator, where (a) is viewed from one side. (B) is a perspective view seen from the other side, (c) is a longitudinal sectional view in the (a) state, (d) is the side view, and (e) is a longitudinal section in the (b) state. A side view, (f) is the same side view. 同塗布具の繰出し機構における、（図４の状態からネジ体を除いた）ネジ軸、回転カム体、伝達カム体、スプリング、および繰出し体を部組した状態の説明図であって、（ａ）が前方側から見た斜視図、（ｂ）が縦断面図、（ｃ）が９０°回転させて側面図、（ｄ）さらに９０°回転させた側面図、（ｅ）が（ｄ）の状態の縦断面図、（ｆ）が後方側から見た斜視図である。FIG. 5 is an explanatory view of a state in which a screw shaft (excluding the screw body from the state of FIG. 4), a rotating cam body, a transmission cam body, a spring, and a feeding body are partly assembled in the feeding mechanism of the applicator; ) Is a perspective view seen from the front side, (b) is a longitudinal sectional view, (c) is a side view rotated 90 °, (d) is a side view further rotated 90 °, and (e) is a view of (d). The longitudinal cross-sectional view of a state, (f) is the perspective view seen from the back side. 同塗布具の繰出し機構におけるネジ体の説明図であって、（ａ）が前方視図、（ｂ）が前方側から見た斜視図、（ｃ）が縦断面図、（ｄ）が９０°回転させた側面図、（ｅ）がさらに９０°回転させた側面図、（ｆ）が（ｄ）の状態の縦断面図、（ｇ）が後方視図、（ｈ）が（ｃ）のＡ−Ａ線に沿う断面図、（ｉ）が後方側から見た斜視図である。It is explanatory drawing of the screw body in the feeding mechanism of the applicator, (a) is a front view, (b) is a perspective view seen from the front side, (c) is a longitudinal sectional view, and (d) is 90 °. Side view rotated, side view rotated 90 ° further, (f) is a longitudinal sectional view in the state of (d), (g) is a rear view, and (h) is A in (c). Sectional drawing which follows the -A line, (i) is the perspective view seen from the back side. 同塗布具の繰出し機構におけるカム動作を説明するネジ体、回転カム体、伝達カム体、および繰出し体の模式図による動作説明図であって、（ａ）が各部の説明図，（ｂ）が初期状態の図、（ｃ）のノックの開始時の状態の図をそれぞれ示す。FIG. 6 is an operation explanatory view of a screw body, a rotating cam body, a transmission cam body, and a schematic view of the feeding body for explaining a cam operation in the feeding mechanism of the applicator, wherein (a) is an explanatory diagram of each part, and (b) The figure of an initial state and the figure of the state at the time of the start of knock of (c) are each shown. 同塗布具の繰出し機構におけるカム動作を説明する図７に続く動作説明図であって、（ａ）がノックを最後までしたときの状態図、（ｂ）がノックを解除して戻り始めた状態の図、（ｃ）がノックが完全に戻って初期状態となった状態図をそれぞれ示す。It is operation | movement explanatory drawing following FIG. 7 explaining the cam operation | movement in the delivery mechanism of the applicator, Comprising: (a) is a state diagram when knocking is completed to the end, (b) is a state where the knock is released and begins to return (C) is a state diagram in which the knock is completely returned to the initial state.

以下、本発明の実施の形態を添付図面を参照して説明する。
図１〜図８は発明の実施形態に係る塗布具の説明図であって、図中、同一の符号を付した部分は同一物を表わす。 Embodiments of the present invention will be described below with reference to the accompanying drawings.
1-8 is explanatory drawing of the applicator which concerns on embodiment of invention, In the figure, the part which attached | subjected the same code | symbol represents the same thing.

図１は、本発明の実施形態に係る塗布具のキャップ装着状態の全体図、図２は、同塗布具のキャップを外した状態の全体図、図３は、同塗布具の作動を説明する全体縦断面図、で図４は、同塗布具のピストン、ネジ体、ネジ軸、回転カム体、伝達カム体、スプリング、および繰出し体からなる繰出し機構を部組した状態の説明図、図５は、同塗布具の繰出し機構における、（図４の状態からネジ体を除いた）ネジ軸、回転カム体、伝達カム体、スプリング、および繰出し体を部組した状態の説明図、図６は、同塗布具の繰出し機構におけるネジ体の説明図、図７は、同塗布具の繰出し機構におけるカム動作を説明するネジ体、回転カム体、伝達カム体、および繰出し体の模式図による動作説明図、図８は、同塗布具の繰出し機構におけるカム動作を説明する図７に続く動作説明図である。 FIG. 1 is an overall view of the applicator according to an embodiment of the present invention in a cap mounting state, FIG. 2 is an overall view of the applicator with the cap removed, and FIG. 3 illustrates the operation of the applicator. FIG. 4 is an overall longitudinal sectional view, and FIG. 4 is an explanatory view showing a state in which a feeding mechanism including a piston, a screw body, a screw shaft, a rotating cam body, a transmission cam body, a spring, and a feeding body of the same applicator is partly assembled, FIG. FIG. 6 is an explanatory diagram of a state in which the screw shaft (excluding the screw body from the state of FIG. 4), the rotating cam body, the transmission cam body, the spring, and the feeding body are partly assembled in the feeding mechanism of the applicator. FIG. 7 is an explanatory view of the screw body in the feeding mechanism of the applicator, and FIG. 7 is an explanation of the operation of the screw body, the rotating cam body, the transmission cam body, and the feeding body, illustrating the cam operation in the feeding mechanism of the applicator. Figures 8 and 8 are cams in the feeding mechanism of the applicator. Is an operation explanatory diagram subsequent to FIG describing the work.

実施形態に係るノック式塗布具は、図１〜図６に示すように、塗布液を貯蔵する軸筒（後軸）１０と、軸筒１０内を摺動するピストン１２と、周面に雄ネジが形成され当該ピストン１２の後部に係合させたネジ軸１４とを有して、使用者が繰出し機構について、軸筒１０内に没する方向へ繰出し体２０をノック操作（繰出し操作）することによってネジ軸１４を介してピストン１２を前進させて軸筒１０内の塗布液を軸筒１０先端の塗付体２４に供給するようにしたものである。 As shown in FIGS. 1 to 6, the knock type applicator according to the embodiment includes a shaft cylinder (rear shaft) 10 that stores a coating liquid, a piston 12 that slides in the shaft cylinder 10, and a male surface on a peripheral surface. A screw shaft 14 that is formed with a screw and is engaged with the rear portion of the piston 12, and the user knocks (feeds out) the feeding body 20 in a direction in which the feeding mechanism is submerged in the shaft tube 10. Thus, the piston 12 is advanced through the screw shaft 14 so that the coating liquid in the shaft tube 10 is supplied to the coating body 24 at the tip of the shaft tube 10.

前記ノック式塗布具は、繰出し機構Ａに、ネジ軸１４との相対回転が規制され、前部および後部にそれぞれカム部１６ａおよび１６ｂの形成された回転カム体１６と、回転カム体１６の後部のカム部１６ｂに噛合うためのカム部１８ａが前部に形成され、かつ、側面部に突起部１８ｂの形成された伝達カム体１８と、伝達カム体１８の突起部１８ｂをガイドするガイド溝２０ａを有し、かつ、前後動によってガイド溝２０ａおよび突起部１８ｂを介して前記伝達カム体１８を回動させる前記繰出し体２０と、前記繰出し体２０を後向きに弾発しおよび伝達カム体１８を前向きに弾発するスプリング１８ｃと、伝達カム体１８、回転カム体１６、スプリング１８ｃ、ネジ軸１４、および繰出し体２０を内蔵し、かつ、内部に後方向きのカム部２２ｃが一体形成された筒状部２２ａを後部に、および前記ネジ軸１４に螺合するネジ部２２ｂを前部に有するネジ体（「固定カム体」に相当）２２とを設けたものである。なお、ネジ体２２とネジ軸１４との相対回転を規制し、回転カム１６とネジ軸１４とを螺合する構成の繰出し機構にしてもよい。 In the knock type applicator, relative rotation with the screw shaft 14 is regulated by the feeding mechanism A, and the rotating cam body 16 having cam portions 16a and 16b formed at the front portion and the rear portion, respectively, and the rear portion of the rotating cam body 16 The cam portion 18a for engaging with the cam portion 16b is formed in the front portion, and the transmission cam body 18 having the projection portion 18b formed on the side surface portion, and the guide groove for guiding the projection portion 18b of the transmission cam body 18 The feeding body 20 having 20a and rotating the transmission cam body 18 through the guide groove 20a and the protrusion 18b by back and forth movement, and the feeding body 20 is elastically moved backward and the transmission cam body 18 is A spring 18c that springs forward, a transmission cam body 18, a rotary cam body 16, a spring 18c, a screw shaft 14, and a feeding body 20 are built in, and the cam portion 2 facing rearward is contained therein. A cylindrical body 22a in which c is integrally formed is provided in the rear part, and a screw body (corresponding to a "fixed cam body") 22 having a screw part 22b screwed to the screw shaft 14 in the front part is provided. . Note that a relative feeding mechanism between the screw body 22 and the screw shaft 14 may be restricted, and a feeding mechanism configured to screw the rotary cam 16 and the screw shaft 14 may be used.

そして、前記繰出し体２０のガイド溝２０ａが軸方向（塗布具の前後方向）に対して角度を持って斜めに形成されている。 The guide groove 20a of the feeding body 20 is formed obliquely with an angle with respect to the axial direction (front-rear direction of the applicator).

上記ノック式塗布具においては、繰出し機構Ａに対して、ノック操作により前記繰出し体２０を前進させたときは、前記ガイド溝２０ａおよび突起部１８ｂによって当該前進動作を伝達カム体１８の一方向（実施形態では軸前方向き右回転方向）への回転動作に変換し、伝達カム体１８のカム部１８ａが回転カム体１６の後部のカム部１６ｂに噛合って、前記伝達カム１８体の回転で回転カム体１６を回転作動させて前記ネジ軸１４の前進でピストン１２が前進し、一方、ノック操作の解除により、スプリング１８ｃの弾発力で繰出し体２０を後退させたときは、前記ガイド溝２０ａおよび突起部１８ｂによって当該後退動作を伝達カム体１８の他方向（実施形態では軸前方向き左回転方向）への回転動作に変換して原位置に復帰し、かつ、回転カム体１６の前部のカム部１６ａが前記筒状部２２のカム部２２ｃに噛合って、前記回転カム体１６の回転作動が規制されて前記ネジ軸１４およびピストン１２の作動が規制されたものである。 In the knock type applicator, when the feeding body 20 is moved forward by a knocking operation with respect to the feeding mechanism A, the forward movement is transmitted in one direction of the transmission cam body 18 by the guide groove 20a and the projection 18b ( In the embodiment, it is converted into a rotational motion in the direction of the shaft forward and to the right), the cam portion 18a of the transmission cam body 18 is engaged with the cam portion 16b at the rear of the rotary cam body 16, and the transmission cam 18 body rotates. When the rotary cam body 16 is rotated and the screw shaft 14 moves forward, the piston 12 moves forward. On the other hand, when the knocking operation is released, the feeding body 20 is moved back by the elastic force of the spring 18c. 20a and the projecting portion 18b convert the backward movement into a rotational movement in the other direction of the transmission cam body 18 (in the embodiment, the left front rotation direction), and return to the original position; and The cam portion 16a at the front portion of the rolling cam body 16 meshes with the cam portion 22c of the cylindrical portion 22, and the rotational operation of the rotating cam body 16 is restricted, and the operations of the screw shaft 14 and the piston 12 are restricted. It is a thing.

図１〜３に示すように、前記ノック式塗布具において、塗付体２４は先軸２６によって軸筒（後軸）１０の先端部１０ａに取り付けられている。塗付体２４は、樹脂製の繊維束または多孔質体等塗布液を含浸して塗付可能な材質なら特に指定しないが、実施形態では、その後端部が熔融によって束ねられてフランジ状を呈している。 As shown in FIGS. 1 to 3, in the knock type applicator, the application body 24 is attached to the distal end portion 10 a of the shaft cylinder (rear shaft) 10 by a front shaft 26. The coated body 24 is not particularly specified as long as it is a material that can be coated by impregnating a coating solution such as a fiber bundle made of resin or a porous body, but in the embodiment, its rear end portion is bundled by melting and has a flange shape. ing.

軸筒１０の塗布液収容部１０ｂに収容する塗布液は化粧液、筆記具用インク、薬品溶液であるが、特に高粘度（好ましくは粘度３００Ｐａ・ｓ以上）の化粧液の場合に繰出し性の容易差が大きい。 The coating liquid stored in the coating liquid storage section 10b of the shaft tube 10 is a cosmetic liquid, a writing instrument ink, and a chemical solution. However, especially in the case of a cosmetic liquid having a high viscosity (preferably a viscosity of 300 Pa · s or more), it is easy to feed. The difference is big.

また、軸筒（後軸）１０の先端部１０ａが軸筒１０内の塗布液収容部１０ｂの部分よりも段状に細径に形成されている。その先軸２６及び塗付体２４を覆って軸筒１０の先端部１０ａに着脱可能に自在にキャップ２８が嵌められる。先軸２６の軸筒１０先端部１０ａ内に嵌入している箇所の内側部に継手３０があり、継手３０の先端部と先軸２６内面部で前記塗付体２４の後端部のフランジを挟み付けて、塗付体２４を固定している。その継手３０の中央孔からＳＵＳや樹脂製のパイプ３２が塗付体２４内に延びて配置され、パイプ３２によって塗付体２４先端部に向けて塗布液を流通可能にしている。 In addition, the tip portion 10 a of the shaft cylinder (rear shaft) 10 is formed in a stepped diameter smaller than the portion of the coating liquid storage portion 10 b in the shaft cylinder 10. A cap 28 is detachably attached to the tip portion 10a of the shaft tube 10 so as to cover the tip shaft 26 and the coated body 24. A joint 30 is provided on the inner side of a portion of the front shaft 26 that is fitted into the front end portion 10a of the shaft tube 10. The coated body 24 is fixed by being sandwiched. A pipe 32 made of SUS or resin extends from the central hole of the joint 30 into the coating body 24, and the pipe 32 allows the coating liquid to flow toward the tip of the coating body 24.

前記軸筒１０の先端部１０ａの段状に細径に成る部分（段差部１０ｃ）の外周面側は、その前方向き面にキャップ２８が当接する。また、当該段差部１０ｃの内周面側は、その後方向き面が、塗布液収容部１０ｂ内に面しており、その後方向き面には、ピストン１２が前進端時に当接して位置規制する。 The cap 28 is in contact with the front-facing surface of the outer peripheral surface side of the stepped portion 10a of the tip 10a of the shaft tube 10 that has a small diameter. Further, on the inner peripheral surface side of the stepped portion 10c, a rearward face faces the inside of the coating liquid storage portion 10b, and the piston 12 abuts on the rearward face when the forward end is reached to restrict the position. .

前記軸筒１０の前方部内が上記の塗布液収容部１０ｂになり、後方部内に、当該塗布液収容部１０ｂ内でピストン１２を前進させて塗布液を塗付体２４に向けて繰出す機能を有する、ネジ体２２、ネジ軸、回転カム体１６、伝達カム体１８、スプリング１８ｃ、および繰出し体２０からなる繰出し機構Ａを配設している。 The front part of the shaft cylinder 10 is the coating liquid storage part 10b, and the piston 12 is advanced in the coating liquid storage part 10b in the rear part to feed the coating liquid toward the application body 24. A feeding mechanism A including a screw body 22, a screw shaft, a rotating cam body 16, a transmission cam body 18, a spring 18c, and a feeding body 20 is disposed.

以下に繰出し機構Ａの構造を説明する。 The structure of the feeding mechanism A will be described below.

前記繰出し体２０は、後端の閉鎖された概略筒状を呈し、その前部の二つの櫛歯状に延びた部分に内外周面を貫通してガイド溝２０ａが軸方向に対して角度を持って斜めに形成されている。繰出し体２０は、その閉鎖された後端面外周を使用者がノック操作することにより、前記繰出し体２０を前進させたときに前記ガイド溝２０ａおよび伝達カム体１８側面の突起部１８ｂによって当該前進動作を伝達カム体１８の回転動作に変換し、当該伝達カム体１８の回転によって回転カム体１６を回転作動させて前記ネジ軸１４を前進させて、ピストン１２を前進させるようにしたものである。 The feeding body 20 has a substantially cylindrical shape with the rear end closed, and the guide groove 20a has an angle with respect to the axial direction through the inner and outer peripheral surfaces of the front portion extending in the two comb teeth. It is formed diagonally. The feeding body 20 is moved forward by the guide groove 20a and the protrusion 18b on the side surface of the transmission cam body 18 when the user knocks the outer periphery of the closed rear end surface to advance the feeding body 20. Is converted into a rotation operation of the transmission cam body 18, the rotation cam body 16 is rotated by the rotation of the transmission cam body 18, the screw shaft 14 is advanced, and the piston 12 is advanced.

なお、繰出し体２０の後側の側部に弾性変形可能なカンチレバー状の腕部外側に突起２０ｂが形成されている。また、繰出し体２０の中央部の外周面には、全周にシール溝２０ｃが形成されていて、ゴム若しくはエラストマー、または、シリコーン製のＯリングなどの弾性体からなるリング状のシール体３４が嵌め込まれて、その繰出し体２０の外周とネジ体２２の筒状部２２ａ内周間に位置している。繰出し体２０および筒状部２２ａ間の気密を維持するようにしている。 In addition, the protrusion 20b is formed in the outer side of the cantilever-like arm part which can be elastically deformed in the rear side part of the feeding body 20. Further, a seal groove 20c is formed on the entire outer peripheral surface of the feeding body 20, and a ring-shaped seal body 34 made of an elastic body such as rubber, elastomer, or silicone O-ring is provided. It is fitted and located between the outer periphery of the feeding body 20 and the inner periphery of the cylindrical portion 22a of the screw body 22. The airtightness between the feeding body 20 and the cylindrical portion 22a is maintained.

前記回転カム体１６には、軸方向前方部および後方部のそれぞれに前向きおよび後ろ向きのカム部１６ａおよび１６ｂがそれぞれ形成されると共に、前記伝達カム体１８の前方部に形成されたカム部１８ａが前記回転カム体１６の後ろ向きカム部１６ｂに対向して配設されている。具体的には、回転カム体１６は、概略円柱状を呈し前方部端面に前向きカム部１６ａが形成され、後方部では筒状に前方に潜り込んだ途中部にカム部１６ｂが形成される。また、伝達カム体１８の前方部はやや細径になって回転カム体１６の筒状の後部内に差し込まれて伝達カム体１８前方部のカム部１８ａがカム部１６ｂに対向する。 The rotating cam body 16 has forward and rearward cam portions 16a and 16b formed at the front and rear portions in the axial direction, respectively, and a cam portion 18a formed at the front portion of the transmission cam body 18. The rotating cam body 16 is disposed to face the rearward facing cam portion 16b. Specifically, the rotating cam body 16 has a substantially columnar shape, a forward cam portion 16a is formed on the front end face, and a cam portion 16b is formed in the middle portion of the rear portion that has entered the tube. Further, the front portion of the transmission cam body 18 is slightly narrowed and inserted into the cylindrical rear portion of the rotating cam body 16, and the cam portion 18a at the front portion of the transmission cam body 18 faces the cam portion 16b.

伝達カム体１８のカム部１８ａおよび前記回転カム体１６の後ろ向きカム部１６ｂは、互いが当接状態の際に、伝達カム体１８が一方向に回転したときに噛み合い、逆に、伝達カム体１８が他方向に回転したときに噛み合いが容易に外れるように、鋸歯形状に形成されている。具体的には、後述の図７の概略示すように、伝達カム体１８のカム部１８ａが斜面の一方向（例：右回転方向）に傾いた三角状の山の複数形成された鋸歯であり、前記回転カム体１６の後ろ向きカム部１６ｂが斜面の他方向（例：左回転方向）に傾いた三角状の山の複数形成された鋸歯である。 The cam portion 18a of the transmission cam body 18 and the rearward cam portion 16b of the rotating cam body 16 are engaged when the transmission cam body 18 rotates in one direction when they are in contact with each other. It is formed in a sawtooth shape so that the engagement can be easily removed when the 18 rotates in the other direction. Specifically, as schematically shown in FIG. 7 to be described later, the cam portion 18a of the transmission cam body 18 is a sawtooth formed with a plurality of triangular peaks inclined in one direction of the inclined surface (example: clockwise rotation direction). The rear-facing cam portion 16b of the rotating cam body 16 is a sawtooth formed with a plurality of triangular peaks inclined in the other direction of the inclined surface (eg, left rotation direction).

ネジ体２２は、図６に示すように前後の開放した概略筒状を呈し、前方のネジ部（「雌ネジ部」に相当）２２ｂは筒状部２２ａよりも段状に細径になっている。ネジ部２２ｂは筒状部２２ａ前端から概略筒状に延びているが、軸方向に切り込まれた先割れ部２２ｂ１によって二股状に分かれて形成され、径方向に弾性変形可能になっている。ネジ部２２ｂの内周部にはネジ軸１４に螺合可能な複数条（例えば、１〜３条）の雌ネジ山２２ｂ２が内向きに突出形成されている。また、ネジ部２２ｂの外周部には、軸筒１０内周面に当接するためのフランジ状の羽根部２２ｂ３が形成されている。 As shown in FIG. 6, the screw body 22 has a substantially cylindrical shape that is open at the front and rear, and a front screw portion (corresponding to a “female screw portion”) 22 b has a smaller diameter in a step shape than the cylindrical portion 22 a. Yes. The screw portion 22b extends in a substantially cylindrical shape from the front end of the cylindrical portion 22a, but is formed in a bifurcated shape by a front crack portion 22b1 cut in the axial direction, and is elastically deformable in the radial direction. A plurality of (for example, 1 to 3) female screw threads 22b2 that can be screwed onto the screw shaft 14 project inwardly on the inner peripheral portion of the screw portion 22b. In addition, a flange-shaped blade portion 22b3 is formed on the outer peripheral portion of the screw portion 22b to contact the inner peripheral surface of the shaft tube 10.

前記筒状部２２ａの外周部には、軸筒１０に対して回り留めするためにスリット溝（またはスプライン溝）２２ａ２が軸方向に延在するように形成されている。なお、スリット溝２２ａ２途中に窓部２２ａ１が位置して形成されている。 A slit groove (or spline groove) 22a2 is formed on the outer peripheral portion of the cylindrical portion 22a so as to extend in the axial direction so as to be secured to the shaft tube 10. A window portion 22a1 is formed in the middle of the slit groove 22a2.

上記の先割れ部２２ｂ１でネジ部２２ｂが二股状になっているので、ネジ軸１４の組付けに際して、ネジ軸１４をネジ部２２ｂ内に押し込めばネジ部２２ｂが弾性変形して装着できる。したがって、ネジ軸１４を回してネジ部２２ｂにネジ込む必要なく組付けができるので、製造ラインにおいて容易かつ確実な装着を可能にして作業負荷を格段に軽減させることができる。 Since the threaded portion 22b is bifurcated at the above-mentioned cracked portion 22b1, when the threaded shaft 14 is assembled, the threaded portion 22b can be elastically deformed and mounted by pushing the threaded shaft 14 into the threaded portion 22b. Therefore, the screw shaft 14 can be assembled without having to be screwed into the screw portion 22b, so that it can be easily and surely attached on the production line, and the work load can be greatly reduced.

また、前記ネジ体２２には、ネジ部２２ｂより後方の筒状部２２ａ内に後方向きに傾斜面の複数からなるカム部２２ｃが形成されて、その後方向きのカム部２２ｃに前記回転カム体１６の前向きカム部１６ａが対向して配置されている。 Further, the screw body 22 is formed with a cam portion 22c having a plurality of inclined surfaces in the rearward direction in the cylindrical portion 22a behind the screw portion 22b, and the rotating cam body is formed on the rear cam portion 22c. Sixteen forward-facing cam portions 16a are arranged to face each other.

ネジ体２２の筒状部２２ａ内部に傾斜面によって後方向きのカム部２２ｃを形成するので、繰出し機構におけるカム体を別途に設けることなくカム部を形成でき、カム体を別途に設けた場合に比較して部品点数を削減できる。また、ネジ部２２ｂは、内側の雌ネジ山２２ｂ２がネジ軸１４と螺合し、外周部の羽根部２２ｂ３が軸筒１０内との接触部に当り、一部薄肉になっている羽根部２２ｂ３を形成することで、成形時に引けによるネジ体２２が開いてしまうのを防止している。羽根部２２ｂ３は軸筒１０内面全周と当接するように組付けている。羽根部２２ｂ３の枚数は、塗布液の充填量を満足しかつ開き防止の両立から２枚が好ましい。また、先割れ部２２ｂ１の形成により、成形金型の設計の自由度が向上するため、コストダウンに繋げることができる。 Since the rearward cam portion 22c is formed by an inclined surface inside the cylindrical portion 22a of the screw body 22, the cam portion can be formed without separately providing the cam body in the feeding mechanism, and when the cam body is provided separately. In comparison, the number of parts can be reduced. Further, the screw portion 22b has an inner female thread 22b2 screwed into the screw shaft 14, and the outer peripheral blade portion 22b3 hits the contact portion with the inside of the shaft tube 10 so that the blade portion 22b3 is partially thinned. This prevents the screw body 22 from being opened due to shrinkage at the time of molding. The blade portion 22b3 is assembled so as to be in contact with the entire inner periphery of the shaft tube 10. The number of blades 22b3 is preferably two in order to satisfy the filling amount of the coating liquid and to prevent the opening. Moreover, since the degree of freedom in designing the molding die is improved by forming the cracked portion 22b1, the cost can be reduced.

筒状部２２ａの窓部２２ａ１は、繰出し体２０の突起２０ｂと係止する構造となっており、繰出し体２０を押圧した際を押圧した際に、繰出し体２０が回らないようになっている。吐出不良を防ぐことができる。 The window portion 22a1 of the cylindrical portion 22a is structured to be engaged with the protrusion 20b of the feeding body 20, and when the feeding body 20 is pressed, the feeding body 20 does not rotate. . Discharge failure can be prevented.

スリット溝２２ａ２は、軸筒１０内に形成した突起とスプライン状に嵌合し係止する構造となっていて、ネジ体２２の回り止めすることによってノック時の回転不良を防止している。この構成はノック式塗布具でなく回転式、スライド式の塗布具にも応用できる。 The slit groove 22a2 has a structure in which the protrusion formed in the shaft tube 10 is fitted and locked in a spline shape, and the rotation of the screw body 22 is prevented to prevent rotation failure at the time of knocking. This configuration can be applied not only to a knock type applicator but also to a rotary or slide type applicator.

回転カム体１６の前向のカム部１６ａおよび前記ネジ体２２の筒状部２２ａ内の後方向きのカム部２２ｃは、互いが当接状態の際に、回転カム体１６が他方向に回転したときに噛み合い、逆に、回転カム体１６が一方向に回転したときに噛み合いが容易に外れる鋸歯形状に形成されている。具体的には、後述の図７の概略示すように、回転カム体１６の前向のカム部１６ａ斜面の一方向（例：右回転方向）に傾いた三角状の山の複数形成された鋸歯であり、前記ネジ体２２の筒状部２２ａ内の後方向きのカム部２２ｃが斜面の他方向（例：左回転方向）に傾いた三角状の山の複数形成された鋸歯である。 When the forward cam portion 16a of the rotating cam body 16 and the rearward cam portion 22c in the cylindrical portion 22a of the screw body 22 are in contact with each other, the rotating cam body 16 rotates in the other direction. In some cases, it is meshed, and conversely, when the rotary cam body 16 rotates in one direction, it is formed in a sawtooth shape that can be easily disengaged. Specifically, as schematically shown in FIG. 7 to be described later, a plurality of sawtooth formed with a plurality of triangular peaks inclined in one direction (eg, rightward rotation direction) of the slope of the forward cam portion 16a of the rotating cam body 16 The cam portion 22c facing rearward in the cylindrical portion 22a of the screw body 22 is a sawtooth formed with a plurality of triangular peaks inclined in the other direction of the slope (eg, left rotation direction).

前記筒状部２２ａ内に、前記繰出し体２０がネジ体２２との相対回転の規制された状態で、軸方向に一定範囲で移動可能に配設される。この相対回転の規制は、具体的には、図４、図５に示すように、繰出し体２０の側部に弾性変形可能なカンチレバー状の腕部外側に突起２０ｂが形成され、その突起２０ｂが筒状部２２ａの軸方向に長い窓部２２ａ１に前後動可能に嵌り込んでいる構成によるものである。また、伝達カム体１８の突起部１８ｂがガイド溝２０ａに嵌り、かつ、前記繰出し体２０及び伝達カム体１８との間にスプリング１８ｃが介装されて互いを弾発した構造になっている。スプリング１８ｃは、金属または樹脂等によって製作したコイルスプリングが好適である。 In the cylindrical portion 22a, the feeding body 20 is disposed so as to be movable within a certain range in the axial direction in a state where relative rotation with the screw body 22 is restricted. Specifically, as shown in FIGS. 4 and 5, the relative rotation is regulated by forming a protrusion 20 b on the outer side of the cantilever-like arm that can be elastically deformed on the side of the feeding body 20, and the protrusion 20 b This is due to the configuration in which the cylindrical portion 22a is fitted in the window portion 22a1 which is long in the axial direction so as to be movable back and forth. Further, the projecting portion 18b of the transmission cam body 18 is fitted in the guide groove 20a, and a spring 18c is interposed between the feeding body 20 and the transmission cam body 18 so as to repel each other. The spring 18c is preferably a coil spring made of metal or resin.

次に、上記した実施形態のノック式塗布具の作動を図３、図７〜図８を参照して説明する。 Next, the operation of the knock type applicator of the above-described embodiment will be described with reference to FIGS. 3 and 7 to 8.

図３（ｂ）と図７（ａ）および（ｂ）に示すものは、ノック式塗布具の非ノック時の状態（原位置）である。 3 (b) and FIGS. 7 (a) and 7 (b) show the non-knock state (original position) of the knock type applicator.

図７（ａ）に示すように、ノック式塗布具においては、繰出し体２０の後端面外周を使用者がノック操作することにより、図３（ｃ）に示すように、前記繰出し体２０を前進させる。そのときに前記ガイド溝２０ａおよび伝達カム体１８側面の突起部１８ｂによって当該前進動作を伝達カム体１８の回転動作（一方向：符号Ｆで示す）に変換する。伝達カム体１８の回転角が図中のθで示し、繰出し体２０のノックストロークを符号Ｌで示している。 As shown in FIG. 7 (a), in the knock-type applicator, when the user knocks the outer periphery of the rear end surface of the delivery body 20, the delivery body 20 is advanced as shown in FIG. 3 (c). Let At that time, the forward movement is converted into a rotational movement (one direction: indicated by F) of the transmission cam body 18 by the guide groove 20a and the protrusion 18b on the side surface of the transmission cam body 18. A rotation angle of the transmission cam body 18 is indicated by θ in the figure, and a knock stroke of the feeding body 20 is indicated by a symbol L.

当該伝達カム体１８の回転によって回転カム体１６を一方向に回転作動させて、前記ネジ軸１４を前進させて、ピストン１２を前進させる。一方、押圧の解除によって繰出し体２０が後方に戻り、かつ、伝達カム体１８が他方向に回転して原位置に戻る。 The rotating cam body 16 is rotated in one direction by the rotation of the transmission cam body 18 to advance the screw shaft 14 and advance the piston 12. On the other hand, when the pressing is released, the feeding body 20 returns to the rear, and the transmission cam body 18 rotates in the other direction and returns to the original position.

詳しくは、図７（ｂ）〜（ｃ）から図８（ａ）に示すように、まず、前記繰出し体２０を前方向に押圧操作したときに、前記スプリング１８ｃの弾発力に抗して前記繰出し体２０が前方に移動する。これによってガイド溝２０ａに沿って突起部１８ｂが摺動して前記伝達カム体１８が一方向に回転する。この伝達カム体１８の一方向への回転が、伝達カム体１８および回転カム体１６の互いに当接するカム部１８ａおよび１６ｂ同士が噛合って回転カム体１６が回転する。そして、図７（ｃ）に示すように、繰出し体２０が下死点に到達する前に、回転カム体１６の前方向きのカム部１６ａの歯が前記筒状部２２ａ内の後方向きのカム部２２ｃの歯を１ピッチ以上進んだところで乗り越えて、図８（ａ）に示すように、下死点に到達したら次のピッチの歯に嵌る。 Specifically, as shown in FIGS. 7 (b) to (c) to FIG. 8 (a), first, when the feeding body 20 is pressed forward, the resilient force of the spring 18c is resisted. The feeding body 20 moves forward. As a result, the protrusion 18b slides along the guide groove 20a, and the transmission cam body 18 rotates in one direction. The rotation of the transmission cam body 18 in one direction causes the cam portions 18a and 16b of the transmission cam body 18 and the rotating cam body 16 that are in contact with each other to mesh with each other, so that the rotary cam body 16 rotates. Then, as shown in FIG. 7C, before the feeding body 20 reaches the bottom dead center, the teeth of the cam portion 16a facing forward of the rotating cam body 16 are cams facing backward in the cylindrical portion 22a. As shown in FIG. 8 (a), when the tooth of the portion 22c is advanced by one pitch or more, it is fitted to the tooth of the next pitch when reaching the bottom dead center.

これにより、回転カム体１６の回転に伝達され、この回転カム体１６の回転によってネジ軸１４が回転し前記ネジ部２２ｂの雌ネジ（雌ネジ山）２２ｂ２の作用によって前進する。このネジ軸１４の前進によって、ピストン１２が塗布液収容部１０ｂ内を前進して塗布液を塗付体２４に向けて繰出す。 As a result, the rotation of the rotating cam body 16 is transmitted, and the rotation of the rotating cam body 16 causes the screw shaft 14 to rotate and advance by the action of the female screw (female screw thread) 22b2 of the screw portion 22b. As the screw shaft 14 advances, the piston 12 advances in the coating liquid storage portion 10 b and feeds the coating liquid toward the coating body 24.

一方、前記繰出し体２０の押圧操作を解除したときに、図８（ａ）〜（ｃ）の順に示すように、前記スプリング１８ｃの弾発力により繰出し体２０が後方に移動することによってガイド溝２０ａに沿って突起部１８ｂが摺動して前記伝達カム体１８が他方向（Ｆの反対方向）に回転する。この回転カム体１６の前方向きのカム部およびネジ体２２の筒状部２２ａ内の後方向きのカム部の歯同士が噛み合って、回転カム体１６の回転が規制されるので、伝達カムのみが回転する（図８（ｂ）〜（ｃ）参照）。そして、前記伝達カム体１８および回転カム体１６の互いに当接するカム部１８ａおよび１６ｂの歯同士の噛合いが外れて、歯を１ピッチ以上進んだところで乗り越えて次のピッチの歯に嵌ることにより、伝達カム体１８の他方向への回転が回転カム体１６に伝達されず、回転カム体１６において１ピッチ隣の歯に嵌る。その際は、図８（ｃ）に示す１ピッチ戻った初期状態になる。 On the other hand, when the pressing operation of the feeding body 20 is released, as shown in the order of FIGS. 8A to 8C, the feeding body 20 moves rearward due to the elastic force of the spring 18c, thereby guiding the groove. The protrusion 18b slides along 20a, and the transmission cam body 18 rotates in the other direction (the direction opposite to F). Since the teeth of the cam portion facing forward of the rotating cam body 16 and the teeth of the cam portion facing backward in the cylindrical portion 22a of the screw body 22 are engaged with each other, the rotation of the rotating cam body 16 is restricted. It rotates (see FIGS. 8B to 8C). The teeth of the cam portions 18a and 16b in contact with each other of the transmission cam body 18 and the rotating cam body 16 are disengaged, and the teeth are moved over by one pitch or more and are fitted into the teeth of the next pitch. The rotation of the transmission cam body 18 in the other direction is not transmitted to the rotation cam body 16 and fits to the tooth adjacent to one pitch in the rotation cam body 16. At that time, the initial state is returned by one pitch as shown in FIG.

ここで、上記回転角θについて条件を考える。
繰出し体２０のノックストロークＬだけノックすると、伝達カム体１８は回転角θ度回転する。伝達カム体１８と回転カム体１６（後部カム部１６ｂ）の１山の回転角をＢとすると、「θ＞Ｂ」の関係が必要である。 Here, conditions are considered for the rotation angle θ.
When the knocking stroke L of the feeding body 20 is knocked, the transmission cam body 18 rotates by a rotation angle θ degree. If the rotation angle of one crest of the transmission cam body 18 and the rotating cam body 16 (rear cam portion 16b) is B, the relationship of “θ> B” is necessary.

すなわち、回転角θが１山の回転角Ｂより大きくないと、カム部の山を乗り越えられないからである。
また、最後までノックしたとき回転カム体１６の前方向きのカム部１６ａがネジ体２２のカム部２２ｃを乗り越えて進んだ角度をＣとし、同様にノックを元に戻したときに回転カム体１６が伝達カム体１８を乗り越えてからさらに進んだ角度をＡとすると
θ＝Ａ＋Ｂ＋Ｃであり、余分に回転するＡやＣを適宜設定することで、「θ＞Ｂ」とすることができる。 That is, unless the rotation angle θ is larger than the rotation angle B of one mountain, the mountain of the cam portion cannot be overcome.
Further, the angle at which the cam portion 16a facing forward of the rotating cam body 16 gets over the cam portion 22c of the screw body 22 when knocking to the end is C, and the rotating cam body 16 is similarly restored when the knocking is restored. If the angle further advanced after overcoming the transmission cam body 18 is A, θ = A + B + C, and “θ> B” can be obtained by appropriately setting A and C that rotate excessively.

ＡやＣが小さいと（少ないと）部品の公差やバラツキでカムを乗り越えられない場合があり、多くしすぎると無駄にノックストロークを増やさねばならず効率的でない。
一つの実施例を考えると、カムは１６等配とすれば、Ｂ＝３６０／１６＝２２．５度となる。ＡとＣは５．５５度に設定すれば、ノックによる回転角はθ＝２２．５＋５．５５＋５．５５＝３３．６度になる。 If A and C are small (if it is small), the cam may not be able to get over due to component tolerances or variations, and if it is too large, the knock stroke must be increased unnecessarily, which is not efficient.
Considering one embodiment, if the cams are 16 equally spaced, B = 360/16 = 22.5 degrees. If A and C are set to 5.55 degrees, the rotation angle by knocking becomes θ = 22.5 + 5.55 + 5.55 = 33.6 degrees.

以上のように実施形態のノック式塗布具によれば、繰出し体２０のガイド溝２０ａが軸方向に対して角度を持って斜めに形成されていて、ノック操作により前記繰出し体２０を前進させたときは、前記ガイド溝２０ａおよび突起部１８ｂによって当該前進動作を伝達カム体１８の一方向への回転動作に変換し、伝達カム体１８のカム部が回転カム体１６の後部のカム部に噛合って、前記伝達カム体１８の回転で回転カム体１６を回転作動させて前記ネジ軸１４の前進でピストン１２が前進し、一方、ノック操作の解除により、スプリング１８ｃの弾発力で繰出し体２０を後退させたときは、前記ガイド溝２０ａおよび突起部１８ｂによって当該後退動作を伝達カム体１８の他方向への回転動作に変換して原位置に復帰し、かつ、回転カム体１６の前部のカム部が前記筒状部２２ａのカム部に噛合って、前記回転カム体１６の回転作動が規制されて前記ネジ軸１４およびピストン１２の作動が規制されたので、繰出し体２０のノック操作したときの力をピストン１２の押圧力に力のロス無く伝えることができ、高粘度の内容物の繰出しの場合に、ノック力の損失を防ぎつつ操作感をさらに軽くできる。 As described above, according to the knock type applicator of the embodiment, the guide groove 20a of the feeding body 20 is formed obliquely with an angle with respect to the axial direction, and the feeding body 20 is advanced by a knocking operation. When the guide groove 20a and the protrusion 18b convert the forward movement into a rotational movement in one direction of the transmission cam body 18, the cam portion of the transmission cam body 18 meshes with the rear cam portion of the rotary cam body 16. Thus, the rotating cam body 16 is rotated by the rotation of the transmission cam body 18 and the piston 12 advances by the advancement of the screw shaft 14, while the release body is released by the elastic force of the spring 18c by releasing the knocking operation. When 20 is retracted, the retracting motion is converted into the rotational motion of the transmission cam body 18 in the other direction by the guide groove 20a and the protrusion 18b, and the rotating cam body 1 is returned to the original position. Since the front cam portion of the cylindrical portion meshes with the cam portion of the cylindrical portion 22a, the rotation operation of the rotating cam body 16 is restricted and the operations of the screw shaft 14 and the piston 12 are restricted. The force at the time of the knocking operation can be transmitted to the pressing force of the piston 12 without any loss of force, and in the case of feeding the highly viscous content, the operational feeling can be further reduced while preventing the loss of the knocking force.

それと共に、内部に後方向きのカム部２２ｃが一体形成された筒状部２２ａを後部にネジ体２２に設けたので、このカム部を別体に設けていないことから、別体に設けた従来品（例えば、特開２００１−２３２２７３号公報）に比較して部品点数を削減できかつ製造を容易化できる。 At the same time, the cylindrical portion 22a in which the rearward cam portion 22c is integrally formed is provided in the screw body 22 at the rear portion. Therefore, since this cam portion is not provided separately, the conventional portion provided separately. Compared to a product (for example, Japanese Patent Application Laid-Open No. 2001-232273), the number of parts can be reduced and manufacturing can be facilitated.

また、繰出し体２０を前方向に押圧操作したときに、前記スプリング１８ｃの弾発力に抗して前記繰出し体２０が前方に移動することによってガイド溝２０ａに沿って突起部１８ｂが摺動して前記伝達カム体１８が一方向に回転し、伝達カム体１８の一方向の回転が、伝達カム体１８および回転カム体１６の互いに対向するカム部同士が噛合い、かつ、回転カム体１６の前方向きのカム部および前記筒状部２２ａ内の後方向きのカム部の噛み合いが外れることにより回転カム体１６の回転に伝達され、この回転カム体１６の回転によってネジ軸１４が回転し前記ネジ部２２ｂの雌ネジの作用によって前進し、前記繰出し体２０の押圧操作を解除したときに、前記スプリング１８ｃの弾発力により繰出し体２０が後方に移動することによってガイド溝２０ａに沿って突起部１８ｂが摺動して前記伝達カム体１８が他方向に回転し、伝達カム体１８および回転カム体１６の互いに当接するカム部同士の噛合いが外れ、かつ、回転カム体１６の前方向きのカム部およびネジ体２２の筒状部２２ａ内の後方向きのカム部が噛み合うことにより、伝達カム体１８の他方向への回転が回転カム体１６に伝達されないようにして繰出し体２０の押圧操作に繰り返しによってピストン１２をスムーズに押し出すことができる。 Further, when the feeding body 20 is pressed forward, the feeding body 20 moves forward against the elastic force of the spring 18c, so that the protrusion 18b slides along the guide groove 20a. The transmission cam body 18 is rotated in one direction, the rotation of the transmission cam body 18 in one direction is such that the cam portions facing each other of the transmission cam body 18 and the rotary cam body 16 mesh with each other, and the rotation cam body 16 The forward cam portion and the rearward cam portion in the cylindrical portion 22a are disengaged to transmit the rotation of the rotary cam body 16, and the rotation of the rotary cam body 16 causes the screw shaft 14 to rotate. When the advancement is performed by the action of the female screw of the screw portion 22b and the pressing operation of the feeding body 20 is released, the feeding body 20 moves rearward by the elastic force of the spring 18c. The projection 18b slides along the groove 20a, the transmission cam body 18 rotates in the other direction, and the cam portions of the transmission cam body 18 and the rotating cam body 16 that come into contact with each other are disengaged, and The forward cam portion of the rotating cam body 16 and the rearward cam portion in the cylindrical portion 22a of the screw body 22 mesh with each other so that the rotation of the transmission cam body 18 in the other direction is not transmitted to the rotating cam body 16. Thus, the piston 12 can be smoothly pushed out by repeating the pressing operation of the feeding body 20.

また、伝達カム体１８のカム部１８ａおよび回転カム体１６の後ろ向きのカム部１６ｂと、前記回転カム体１６の前向きのカム部１６ａおよび前記ネジ体２２の筒状部２２ａ内の後ろ向きのカム部２２ｃとにおける各カム部の歯のピッチが同じであり、かつ、回転カム体１６の後ろ向きのカム部１６ｂと前向きのカム部１６ａの歯の位相がズレて形成すれば、繰出し体２０のノック操作前に回転カム体１６の（前方向きのカム部１６ａの）カム歯が筒状部２２ａの（カム部２２ｃの）カム歯に嵌り込んでいる状態であり、繰出し体２０のノック操作時に伝達カム体１８のカム部が回転カム体１６の後ろ向きの歯と位相がずれているので、繰出し体２０の前進で伝達カム体１８が回転する。
そして、繰出し体２０のノック解除時に確実に回転カム体１６（の前方向きのカム部１６ａ）と筒状部２２ａとのカム部同士が噛み合い、回転カム体１６の戻り回転するのを確実に防ぐことができる。 Further, the cam portion 18a of the transmission cam body 18 and the rearward cam portion 16b of the rotary cam body 16, the forward cam portion 16a of the rotary cam body 16, and the rearward cam portion in the cylindrical portion 22a of the screw body 22 are provided. If the tooth pitch of each cam part in 22c is the same and the phase of the teeth of the rearward cam part 16b and the forward cam part 16a of the rotating cam body 16 are shifted, the knocking operation of the feeding body 20 is performed. The cam teeth ( of the cam portion 16a facing forward) of the rotating cam body 16 are fitted into the cam teeth (of the cam portion 22c) of the cylindrical portion 22a before the transmission cam when the feeding body 20 is knocked. the cam portion of the body 18 rearward of the teeth and the phase of the rotary cam member 16 is shifted, the transmission cam member 18 rotates in the forward of the feeding member 20.
When the knockout of the feeding body 20 is released, the rotating cam body 16 (the cam portion 16a facing forward) and the tubular portion 22a are reliably engaged with each other, and the rotating cam body 16 is reliably prevented from returning and rotating. be able to.

また、繰出し体２０の外周とネジ体２２の筒状部２２ａ内周間にリング状のシール体（弾性体）３４が周状に位置しているものにすれば、リング状のシール体３４が繰出し体２０から後方への気密を確保して内容物の乾燥や変質を確実に防止することができる等の優れた効果を奏し得る。 If a ring-shaped seal body (elastic body) 34 is located between the outer periphery of the feeding body 20 and the inner periphery of the cylindrical portion 22a of the screw body 22, the ring-shaped seal body 34 is It is possible to obtain excellent effects such as ensuring the airtightness from the feeding body 20 to the rear and preventing the contents from being dried and altered.

ここで、本発明では、軸筒１０の塗布液収容部１０ｂに収容する塗布液は化粧液、筆記具用インク、薬品溶液であるが、特に高粘度の粧液の場合に繰出し性の容易性が従来に比較して顕著に大きい。そこで、その効果を確認するため、従来品の容器と本発明品のノック式塗布具の塗布液収納部に市販のリップグロー化粧品を一定量充填し、各温度条件下で２４時間放置後の使用性について評価した。評価結果を下表に示す。

Here, in the present invention, the coating liquid stored in the coating liquid storage portion 10b of the shaft tube 10 is a cosmetic liquid, a writing instrument ink, and a chemical solution. However, in the case of a high-viscosity cosmetic liquid, it is easy to pay out. It is significantly larger than before. Therefore, in order to confirm the effect, a certain amount of a commercially available lip glow cosmetic product is filled in the container of the conventional product and the coating solution storage part of the knock type applicator of the present invention, and the product is used after being left for 24 hours under each temperature condition Sexuality was evaluated. The evaluation results are shown in the table below.

表から分かるように、従来品では５℃〜０℃において、ノック動作できず、使用できない状態であったが、本発明品では、５℃〜０℃においてもノック動作できて、使用可能な状態であった。本発明の顕著な効果が確認されたものである。 As can be seen from the table, in the conventional product, the knock operation could not be performed at 5 ° C. to 0 ° C., but in the present invention product, the knock operation could be performed even at 5 ° C. to 0 ° C. Met. The remarkable effect of the present invention has been confirmed.

なお、本発明は上記実施形態のノック式筆記具に限定されず、本発明の範囲内で種々に変形実施ができる。 In addition, this invention is not limited to the knock type writing instrument of the said embodiment, A various deformation | transformation implementation can be carried out within the scope of the present invention.

本発明のノック式塗布具は、化粧品、薬品、インクにおいて高粘度の塗布液を塗布するための塗布具に利用することができる。 The knock type applicator of the present invention can be used as an applicator for applying a high-viscosity coating liquid in cosmetics, medicines, and inks.

１０軸筒（後軸）
１０ａ軸筒の先端部
１０ｂ塗布液収容部
１０ｃ段差部
１２ピストン
１４ネジ軸
１６回転カム体
１６ａ前方向きのカム部（前部のカム部）
１６ｂ後方向きのカム部（後部のカム部）
１８伝達カム体
１８ａカム部
１８ｂ突起部
１８ｃスプリング
２０繰出し体
２０ａガイド溝
２０ｂ突起
２０ｃシール溝
２２ネジ体
２２ａ筒状部
２２ａ１窓部
２２ａ２スリット溝
２２ｂネジ部
２２ｂ１先割れ部
２２ｂ２雌ネジ山
２２ｂ３羽根部
２２ｃカム部
２４塗付体
２６先軸
２８キャップ
３０継手
３２パイプ
３４シール体
Ａ繰出し機構 10 Shaft cylinder (rear shaft)
10a Front end portion 10b of the shaft tube Coating liquid storage portion 10c Step portion 12 Piston 14 Screw shaft 16 Rotating cam body 16a Front-facing cam portion (front cam portion)
16b Rear-facing cam part (rear cam part)
18 Transmission cam body 18a Cam portion 18b Protruding portion 18c Spring 20 Feeding body 20a Guide groove 20b Protrusion 20c Seal groove 22 Screw body 22a Tubular portion 22a1 Window portion 22a2 Slit groove 22b Screw portion 22b1 Tip crack portion 22b2 Female thread 22b3 Blade portion 22c Cam part 24 Coated body 26 Lead shaft 28 Cap 30 Joint 32 Pipe 34 Seal body A Feeding mechanism

Claims

塗布液を軸筒内に貯蔵して、軸筒内を摺動するピストンの後部にネジ軸を係合させ、繰出し機構への繰出し操作によってネジ軸を介してピストンを前進させて軸筒内の塗布液を軸筒先端の塗付体に供給するようにしたノック式塗布具において、
前記繰出し機構は、
前部および後部にカム部が形成された回転カム体と、
回転カム体の後部のカム部に噛合うためのカム部が前部に形成され、かつ、側面部に突起部の形成された伝達カム体と、
前記伝達カム体の突起部をガイドするガイド溝が軸方向に対して斜めに形成され、かつ、前記軸筒との相対回転が規制された繰出し体と、
前記繰出し体を後向きに弾発しおよび伝達カム体を前向きに弾発するスプリングと、
後方向きのカム部が形成され、かつ、軸筒との相対回転の規制された固定カム体とを有したものであって、
前記回転カム体および固定カム体のうちの一方にネジ軸との相対回転が規制される係止構造を形成し、他方に前記ネジ軸に螺合するネジ部を設けて、前記回転カム体の回転を係止構造、ネジ部およびネジ軸の協働によって前記ネジ軸を軸筒に対して前進させる運動に変換してピストンを前進させるものであり、
ノック操作により前記繰出し体を前進させたときは、前記ガイド溝および突起部によって当該前進動作を伝達カム体の一方向への回転動作に変換し、伝達カム体のカム部が回転カム体の後部のカム部に噛合って、前記伝達カム体の回転で回転カム体を回転作動させることによって、前記ネジ軸を前進させてピストンを前進させ、
一方、前記ノック操作で前記繰出し体を前進させた後に当該ノック操作を解除したことにより、繰出し体がスプリングの弾発力で後退し、前記ガイド溝および突起部によって当該後退動作を伝達カム体の他方向への回転動作に変換して原位置に復帰し、それと共に、回転カム体の前部のカム部が前記固定カム体のカム部に噛合って、前記回転カム体の回転作動が規制されて前記ネジ軸およびピストンの作動が規制されており、
前記固定カム体の後部にはそのカム部を囲んで後方に向かう筒状部が延在し、この筒状部内に回転カム体、伝達カム体、繰出し体およびスプリングを配置したことを特徴とするノック式塗布具。 The coating liquid is stored in the shaft cylinder, the screw shaft is engaged with the rear portion of the piston sliding in the shaft cylinder, and the piston is advanced through the screw shaft by the feeding operation to the feeding mechanism, so that the inside of the shaft cylinder is In the knock type applicator that supplies the coating liquid to the coating body at the tip of the shaft tube,
The feeding mechanism is
A rotating cam body with cam portions formed at the front and rear, and
A transmission cam body in which a cam portion for meshing with a rear cam portion of the rotating cam body is formed at a front portion, and a projection is formed on a side surface portion;
A feeding body in which a guide groove for guiding the protrusion of the transmission cam body is formed obliquely with respect to the axial direction, and relative rotation with the shaft cylinder is restricted;
A spring that repels the feeding body backward and a transmission cam body forwards;
A rear-facing cam portion is formed, and a fixed cam body whose relative rotation with the shaft cylinder is restricted,
One of the rotating cam body and the fixed cam body is formed with a locking structure that restricts relative rotation with the screw shaft, and the other is provided with a screw portion that is screwed onto the screw shaft, The rotation is converted into a movement to advance the screw shaft with respect to the shaft cylinder by the cooperation of the locking structure, the screw portion and the screw shaft, and the piston is advanced.
When the feeding body is advanced by a knocking operation, the forward movement is converted into a rotational movement in one direction of the transmission cam body by the guide groove and the projection, and the cam portion of the transmission cam body is the rear portion of the rotation cam body. The rotary cam body is rotated by the rotation of the transmission cam body, the screw shaft is advanced to advance the piston,
On the other hand, by releasing the knocking operation after the feeding body has been advanced by the knocking operation, the feeding body is retracted by the spring force of the spring, and the retraction operation is performed by the guide groove and the protruding portion of the transmission cam body. It is converted into rotational movement in the other direction and returned to the original position, and at the same time, the cam portion of the front portion of the rotating cam body meshes with the cam portion of the fixed cam body, and the rotational operation of the rotating cam body is restricted. And the operation of the screw shaft and the piston is restricted ,
A cylindrical portion extending rearward around the cam portion extends at the rear portion of the fixed cam body, and a rotating cam body, a transmission cam body, a feeding body, and a spring are disposed in the cylindrical portion. Knock type applicator.

ネジ軸は、横断面視で周の一部を切り欠いた異形形状を呈しており、
前記回転カム体には、ネジ軸を通してネジ軸との相対回転を規制しかつ軸方向移動可能にする異形孔が形成され、
伝達カム体のカム部および前記回転カム体の後ろ向きカム部は、互いが当接状態の際に、伝達カム体が一方向に回転したときに噛み合い、逆に、伝達カム体が他方向に回転したときに噛み合いが容易に外れる鋸歯形状に形成されており、
前記固定カム体には、中心軸部にネジ軸の雄ネジに螺合する雌ネジが形成され、後方向きのカム部に前記回転カム体の前向きカム部が対向し、
回転カム体の前向のカム部および前記固定カム体の後方向きのカム部は、互いが当接状態の際に、回転カム体が他方向に回転したときに噛み合い、逆に、回転カム体が一方向に回転したときに噛み合いが容易に外れる鋸歯形状に形成されており、
前記繰出し体が固定カム体との相対回転の規制された状態で、軸方向に一定範囲で移動可能に配設され、
前記繰出し体を前方向に押圧操作したときに、前記スプリングの弾発力に抗して前記繰出し体が前方に移動することによってガイド溝に沿って突起部が摺動して前記伝達カム体が一方向に回転し、
伝達カム体の一方向の回転が、伝達カム体および回転カム体の互いに当接するカム部同士が噛合い、かつ、回転カム体の前方向きのカム部および前記固定カム体の後方向きのカム部の噛み合いが外れることにより回転カム体の回転に伝達され、この回転カム体の回転によってネジ軸が回転して前記固定カム体の雌ネジの作用によって前進し、
前記繰出し体の押圧操作を解除したときに、前記スプリングの弾発力により繰出し体が後方に移動することによってガイド溝に沿って突起部が摺動して前記伝達カム体が他方向に回転し、
伝達カム体および回転カム体の互いに当接するカム部同士の噛合いが外れ、かつ、回転カム体の前方向きのカム部および固定カム体の後方向きのカム部同士が噛み合うことにより、伝達カム体の他方向への回転が回転カム体に伝達されないようにしたことを特徴とする請求項１に記載のノック式塗布具。 The screw shaft has an irregular shape with a part cut off in the cross-sectional view.
The rotating cam body is formed with a deformed hole that restricts relative rotation with the screw shaft through the screw shaft and is axially movable,
The cam portion of the transmission cam body and the rearward cam portion of the rotating cam body are engaged when the transmission cam body rotates in one direction when they are in contact with each other, and conversely, the transmission cam body rotates in the other direction. Is formed in a sawtooth shape that can be easily disengaged when
The fixed cam body is formed with a female screw that is threadedly engaged with a male screw of a screw shaft at a central shaft portion, and a forward cam portion of the rotating cam body is opposed to a rearward cam portion,
The forward cam portion of the rotating cam body and the rearward cam portion of the fixed cam body are engaged when the rotating cam body rotates in the other direction when they are in contact with each other. Is formed in a sawtooth shape that easily disengages when rotated in one direction,
In a state where the relative rotation with the fixed cam body is restricted, the feeding body is disposed so as to be movable within a certain range in the axial direction.
When the feeding body is pushed forward, the feeding body moves forward against the spring force of the spring, so that the protrusion slides along the guide groove and the transmission cam body Rotate in one direction,
Rotation in one direction of the transmission cam body is such that the cam portions of the transmission cam body and the rotating cam body that are in contact with each other mesh with each other, and the front cam portion of the rotating cam body and the rear cam portion of the fixed cam body. Is transmitted to the rotation of the rotating cam body, the screw shaft rotates by the rotation of the rotating cam body, and advances by the action of the female screw of the fixed cam body,
When the pressing operation of the feeding body is released, the feeding body is moved rearward by the elastic force of the spring, so that the protruding portion slides along the guide groove and the transmission cam body rotates in the other direction. ,
The transmission cam body and the rotating cam body are disengaged from each other, and the cam portion facing the front of the rotating cam body and the cam portion facing the rear of the fixed cam body are engaged with each other. The knock type applicator according to claim 1, wherein rotation in the other direction is not transmitted to the rotating cam body.

ネジ軸は、横断面視で周の一部を切り欠いた異形形状を呈しており、
前記回転カム体には、ネジ軸を通してネジ軸との相対回転を規制しかつ軸方向移動可能にする異形孔が形成され、
前記固定カム体には、前方部に中心軸部にネジ軸の雄ネジに螺合する雌ネジ部が前方に突出形成された概略筒状を呈し、
その雌ネジ部は前端から後方向きに切り込みが形成されたものであって、ネジ軸の装着の際に雌ネジ部は切り込みが開くように弾性変形して全体が拡径するものであることを特徴とする請求項１または２に記載のノック式塗布具。 The screw shaft has an irregular shape with a part cut off in the cross-sectional view.
The rotating cam body is formed with a deformed hole that restricts relative rotation with the screw shaft through the screw shaft and is axially movable,
The fixed cam body has a substantially cylindrical shape in which a female screw portion that is screwed into a male screw of a screw shaft on a central shaft portion is protruded forward at a front portion ,
The female threaded portion has a notch formed rearward from the front end, and when the screw shaft is mounted, the female threaded portion is elastically deformed so that the notch is opened and the entire diameter is expanded. The knock type applicator according to claim 1 or 2 , characterized in that:

前記繰出し体のガイド溝は、当該ガイド溝に突起部を嵌めて周方向に伝達カム体を回転させる範囲が、伝達カム体および回転カム体の後ろ向きのカム部と、前記回転カム体の前向きのカム部および前記固定カム体の後ろ向きのカム部とにおける各カム部の歯のピッチよりも長くなるように形成したことを特徴とする請求項１から３のうちの１項に記載のノック式塗布具。 The guide groove of the feeding body has a range in which a protrusion is fitted in the guide groove and the transmission cam body is rotated in the circumferential direction, the rear cam portion of the transmission cam body and the rotating cam body, and the forward cam portion of the rotating cam body. The knock type application according to any one of claims 1 to 3 , wherein the knock part coating is formed to be longer than a tooth pitch of each cam part between the cam part and the cam part facing backward of the fixed cam body. Ingredients.

伝達カム体および回転カム体の後ろ向きのカム部と、前記回転カム体の前向きのカム部および前記固定カム体の後ろ向きのカム部とにおける各カム部の歯のピッチが同じであり、かつ、回転カム体の後ろ向きのカム部と前向きのカム部の歯の位相がズレていることを特徴とする請求項１から４のうちの１項に記載のノック式塗布具。 The teeth of the cam portions of the rear cam portion of the transmission cam body and the rotating cam body, the front cam portion of the rotating cam body, and the rear cam portion of the fixed cam body have the same tooth pitch, and rotate. knock-type applicator according to one of claims 1, characterized in that the teeth of the phase of the cam portion of the backward and forward cam portion of the cam member is displaced 4.

繰出し体の外周と固定カム体の筒状部内周との間にリング状の弾性体が周状に位置していることを特徴とする請求項１に記載のノック式塗布具。 2. The knock type applicator according to claim 1 , wherein a ring-shaped elastic body is located circumferentially between the outer periphery of the feeding body and the inner periphery of the cylindrical portion of the fixed cam body.