JP2018130225A - Discharge nozzle member - Google Patents
Discharge nozzle member Download PDFInfo
- Publication number
- JP2018130225A JP2018130225A JP2017025028A JP2017025028A JP2018130225A JP 2018130225 A JP2018130225 A JP 2018130225A JP 2017025028 A JP2017025028 A JP 2017025028A JP 2017025028 A JP2017025028 A JP 2017025028A JP 2018130225 A JP2018130225 A JP 2018130225A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- discharge nozzle
- nozzle member
- liquid
- discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000007788 liquid Substances 0.000 claims abstract description 80
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 58
- 239000003479 dental cement Substances 0.000 claims description 7
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000000178 monomer Substances 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 239000002685 polymerization catalyst Substances 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 239000003814 drug Substances 0.000 description 3
- 229940124597 therapeutic agent Drugs 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
Description
本発明は、液体を収容した容器に適用される吐出ノズル部材、特に、それに限定されるものではないが、揮発性有機溶媒、重合性単量体及び重合触媒を含む歯科用接着剤或いは治療剤を収容した容器に好都合に適用することができる吐出ノズル部材、に関する。 The present invention relates to a discharge nozzle member applied to a container containing a liquid, in particular, but not limited thereto, a dental adhesive or therapeutic agent containing a volatile organic solvent, a polymerizable monomer and a polymerization catalyst. The present invention relates to a discharge nozzle member that can be conveniently applied to a container that contains a container.
下記特許文献１には、特に揮発性有機溶媒、重合性単量体及び重合触媒を含む歯科用接着剤或いは治療剤の如き液体のための容器として好都合に使用することができる容器が開示されている。かかる容器は、外容器、この外容器内に収納される内容器及び外容器に装着される蓋部材を具備している。液体を収容する内容器は上端が開口された口頸部を有し、この口頸部には吐出ノズル部材が装着されている。外容器に蓋部材が装着されると内容器に装着されている吐出ノズル部材が蓋部材によって覆われる。内容器に収容されている液体を使用する際には、蓋部材を外容器から離脱して吐出ノズル部材を露呈せしめ、容器全体を傾動して吐出ノズル部材の先端を下方に向け、しかる後に外容器の主部を押圧して外容器の主部と共に内容器の主部を圧縮して吐出ノズル部材の排出孔を通して液体を排出する。 Patent Document 1 listed below discloses a container that can be advantageously used as a container for a liquid such as a dental adhesive or a therapeutic agent, particularly including a volatile organic solvent, a polymerizable monomer, and a polymerization catalyst. Yes. Such a container includes an outer container, an inner container accommodated in the outer container, and a lid member attached to the outer container. The inner container for storing the liquid has a mouth and neck portion whose upper end is opened, and a discharge nozzle member is attached to the mouth and neck portion. When the lid member is attached to the outer container, the discharge nozzle member attached to the inner container is covered with the lid member. When using the liquid contained in the inner container, the cover member is detached from the outer container to expose the discharge nozzle member, the entire container is tilted so that the tip of the discharge nozzle member faces downward, and then the outer cover is removed. The main part of the container is pressed to compress the main part of the inner container together with the main part of the outer container, and the liquid is discharged through the discharge hole of the discharge nozzle member.
上記吐出ノズル部材は、下端から上端まで貫通する排出孔が形成されている略円筒形状のノズル部、このノズル部の下端から半径方向外方に延出する円環状底壁、底壁の外周縁から上方に延びる円筒形状の外側壁、及び外側壁の上端から半径方向外方に延びる円環状フランジ壁を含み、ノズル部の外周面、底壁の上面及び外壁の内周面によって液溜が規定されている。排出孔を通して流出したがノズル部材から離脱することなくノズル部材の外周面に流動した液体は、容器が正立状態に戻されると、ノズル部の外周面に沿って流下して液溜に流入する。 The discharge nozzle member includes a substantially cylindrical nozzle portion in which a discharge hole penetrating from the lower end to the upper end is formed, an annular bottom wall extending radially outward from the lower end of the nozzle portion, and an outer peripheral edge of the bottom wall A cylindrical outer wall extending upward and an annular flange wall extending radially outward from the upper end of the outer wall, and a liquid reservoir is defined by the outer peripheral surface of the nozzle portion, the upper surface of the bottom wall, and the inner peripheral surface of the outer wall Has been. The liquid that has flowed out through the discharge hole but has flowed to the outer peripheral surface of the nozzle member without leaving the nozzle member flows down along the outer peripheral surface of the nozzle portion and flows into the liquid reservoir when the container is returned to the upright state. .
特許文献１に開示されている上記のとおりの容器は、液体が揮発性有機溶媒を含む場合でも、所謂噴きこぼれやボタ落ちが可及的に防止される優れたものであるが、未だ充分に満足し得るものではなく、その吐出ノズル部材に関して、次のとおりの解決すべき問題がある。第一に、液溜に流入しそこに滞留した液体が、蓋部材を離脱し容器全体を傾動して吐出ノズル部材の先端を下方に向けた時に、液溜から流出して吐出ノズル部材から離脱して落下してしまう傾向がある。第二に、液溜から流出した液体がフランジ壁の表面に流動し、次いで外容器の上端部外周面に流動してしまう虞がある。特に、液体が重合性単量体及び重合触媒を含む歯科用接着剤である場合、外容器の上端部外周面に流動した液体が外容器と蓋部材との間で硬化し、これに起因して蓋部材の離脱が困難になることがある。第三に、排出孔の主部に比べて排出孔の先端部（上端部）は口径が著しく小さく設定されていることに起因して、特に液の粘性が比較的高い場合に排出孔の先端部が液によって閉塞されてしまうことがある。 The container as described above disclosed in Patent Document 1 is excellent in that so-called spilling or dropping of a liquid is prevented as much as possible even when the liquid contains a volatile organic solvent. The discharge nozzle member is not satisfactory and has the following problems to be solved. First, when the liquid that flows into and stays in the liquid reservoir leaves the lid member, tilts the entire container and turns the tip of the discharge nozzle member downward, it flows out of the liquid reservoir and leaves the discharge nozzle member. And tend to fall. Secondly, there is a possibility that the liquid flowing out from the liquid reservoir flows to the surface of the flange wall and then flows to the outer peripheral surface of the upper end portion of the outer container. In particular, when the liquid is a dental adhesive containing a polymerizable monomer and a polymerization catalyst, the liquid that has flowed to the outer peripheral surface of the upper end of the outer container is cured between the outer container and the lid member, resulting in this. Therefore, it may be difficult to remove the lid member. Thirdly, the tip of the discharge hole (upper end) is set to be extremely small compared to the main part of the discharge hole, particularly when the viscosity of the liquid is relatively high. The part may be blocked by the liquid.
本発明は上記事実に鑑みてなされたものであり、本発明の第一の技術的課題は、吐出ノズル部材の先端を下方に向けても液溜に滞留した液体が液溜から流出することが可及的に防止される、新規且つ改良された吐出ノズル部材を提供することである。本発明の第二の技術的課題は、上記第一の技術的課題の達成に加えて、液溜からフランジの表面に液体が流動しても外容器の上端部外周面に流動してしまうことが確実に防止される、新規且つ改良された吐出ノズル部材を提供することである。本発明の第三の技術的課題は、上記第一の技術的課題の達成に加えて、液の粘性が比較的高い場合でも排出孔が閉塞されることがない、新規且つ改良された吐出ノズル部材を提供することである。 The present invention has been made in view of the above-mentioned fact, and the first technical problem of the present invention is that the liquid retained in the liquid reservoir flows out of the liquid reservoir even when the tip of the discharge nozzle member is directed downward. It is to provide a new and improved discharge nozzle member which is prevented as much as possible. In addition to the achievement of the first technical problem, the second technical problem of the present invention is that even if liquid flows from the liquid reservoir to the surface of the flange, it flows to the outer peripheral surface of the upper end portion of the outer container. It is an object of the present invention to provide a new and improved discharge nozzle member in which the above-described problem is reliably prevented. A third technical problem of the present invention is a novel and improved discharge nozzle which, in addition to achieving the first technical problem, does not block the discharge hole even when the viscosity of the liquid is relatively high. It is to provide a member.
本発明者等は、鋭意研究及び実験の結果、ノズル部の外周面に周方向に間隔をおいて上下方向に延びる複数個の突条を配設することによって、上記第一の技術的課題を達成することができることを見出した。また、上記複数個の突条の配設に加えて、フランジ壁の外周縁から上方に突出する円筒形状の直立壁を付設すると共に、フランジ壁の上面外周縁部に環状溝部を形成することによって、上記第二の技術的課題を達成することができることを見出した。更に、横断面形状が円形である排出孔を、上端部を除いて同一の直径を有し且つ上端部においては上方に向かって直径が漸次増大する形態にすることによって、上記第三の技術的課題を達成することができることを見出した。 As a result of intensive studies and experiments, the inventors have arranged the first technical problem by arranging a plurality of protrusions extending in the vertical direction at intervals in the circumferential direction on the outer peripheral surface of the nozzle portion. I found that I can achieve it. In addition to the arrangement of the plurality of protrusions, a cylindrical upright wall projecting upward from the outer peripheral edge of the flange wall is provided, and an annular groove is formed on the outer peripheral edge of the upper surface of the flange wall. The present inventors have found that the second technical problem can be achieved. Further, the discharge hole having a circular cross-sectional shape has the same diameter except for the upper end portion, and the diameter is gradually increased upward at the upper end portion. I have found that I can achieve the task.
即ち、本発明によれば、上記第一の技術的課題を達成する吐出ノズル部材として、下端から上端まで貫通する排出孔が形成されている筒状ノズル部、該ノズル部の下端乃至下部から半径方向外方に延在する環状底壁、及び該底壁の外周縁から上方に延びる筒状外側壁を含み、該ノズル部の外周面、該底壁の上面及び該外側壁の内周面によって環状液溜が規定されている吐出ノズル部材において、
該ノズル部の外周面には、周方向に間隔をおいて上下方向に延びる複数個の突条が配設されている、ことを特徴とする吐出ノズル部材が提供される。
That is, according to the present invention, as a discharge nozzle member that achieves the first technical problem, a cylindrical nozzle portion in which a discharge hole penetrating from the lower end to the upper end is formed, and a radius from the lower end to the lower portion of the nozzle portion. An annular bottom wall extending outward in the direction, and a cylindrical outer wall extending upward from the outer peripheral edge of the bottom wall, the outer peripheral surface of the nozzle portion, the upper surface of the bottom wall and the inner peripheral surface of the outer wall In the discharge nozzle member in which the annular liquid reservoir is defined,
A discharge nozzle member is provided in which a plurality of protrusions extending in the vertical direction are arranged on the outer peripheral surface of the nozzle portion at intervals in the circumferential direction.
好ましくは、該突条は該底壁の上面に接続された下端縁から上方に延在し且つ半径方向突出量は上方に向かって漸次減少せしめられているのが好適である。該突条の下端外縁は該外側壁の内周面に近接乃至接続されているのが望ましい。該突条は周方向に等間隔をおいて６乃至１０個配設されているのが好ましい。該外側壁は該ノズル部の上下方向中間部まで上方に延びており、該突条の上端は該ノズル部の上端よりも下方であるが該外側壁の上端よりも上方であるのが好適である。上記第三の技術的課題は、該排出孔の横断面形状は円形であり、上端部を除いて同一内径を有し、該上端部においては上方に向かって内径が漸次増大する形態にすることよって達成される。特に、該排出孔の該上端部を除く主部の内径が１．０乃至２．０ｍｍであり、且つ該主部の上下方向長さが１０．０乃至１９．０ｍｍであるのが望ましい。上記第二の技術的課題は、該外側壁の上端から半径方向外方に延びる環状フランジ壁、及び該フランジ壁の上面外周縁から上方に突出する筒状直立壁が付設されており、該フランジ壁の外周縁部には環状溝部が形成されている形態にすることによって達成される。本発明の吐出ノズルは、特に、歯科用接着剤を収納する容器の口頸部に適用するのに好適である。 Preferably, the ridge extends upward from a lower end edge connected to the upper surface of the bottom wall, and the radial protrusion amount is gradually decreased upward. It is desirable that the outer edge of the lower end of the ridge is close to or connected to the inner peripheral surface of the outer wall. It is preferable that 6 to 10 protrusions are arranged at equal intervals in the circumferential direction. The outer wall extends upward to the middle in the up-down direction of the nozzle portion, and the upper end of the ridge is preferably lower than the upper end of the nozzle portion but higher than the upper end of the outer wall. is there. The third technical problem is that the discharge hole has a circular cross-sectional shape, has the same inner diameter except for the upper end, and the inner diameter gradually increases upward at the upper end. This is achieved. In particular, the inner diameter of the main portion excluding the upper end of the discharge hole is preferably 1.0 to 2.0 mm, and the vertical length of the main portion is preferably 10.0 to 19.0 mm. The second technical problem is that an annular flange wall extending radially outward from the upper end of the outer wall and a cylindrical upright wall protruding upward from the outer peripheral edge of the upper surface of the flange wall are attached. This is achieved by forming an annular groove on the outer peripheral edge of the wall. The discharge nozzle of the present invention is particularly suitable for application to the mouth and neck of a container for storing a dental adhesive.
本発明の吐出ノズル部材においては、突条の存在によって液溜に滞留している液体と吐出ノズル部材との接触面積が大幅に増大され、それ故に液体の表面張力による液溜からの流出阻止力が大幅に増大され、かくして吐出ノズル部材の先端を下方に向けても液溜に滞留した液が液溜から流出することが可及的に防止される。外側壁の上端から半径方向外方に延びる環状フランジ壁、及びフランジ壁の上面外周縁から上方に突出する筒状の突出壁が付設されており、フランジ壁の外周縁部には環状溝部が形成されている形態においては、液溜からフランジ壁の上面に液体が流動したとしても、フランジ壁の表面を流動する液体が溝部に収容されると共に突出壁の存在によってフランジ壁を越えて流動することが阻止され、かくして液溜からフランジの表面に液体が流動しても外容器の上端部外周面に流動してしまうことが充分に防止される。排出孔の横断面形状は円形であり、上端部を除いて同一直径を有し、上端部においては上方に向かって直径が漸次増大する形態においては、横断面積が過小な部分が回避されていると共に先端部においては横断面積が漸次増大されている故に、上記第一の技術的課題の達成に加えて、液の粘性が比較的高い場合でも排出孔が閉塞されることがない。 In the discharge nozzle member of the present invention, the contact area between the liquid staying in the liquid reservoir and the discharge nozzle member is greatly increased due to the presence of the protrusion, and hence the outflow prevention force from the liquid reservoir due to the surface tension of the liquid. Thus, even if the tip of the discharge nozzle member is directed downward, the liquid remaining in the liquid reservoir is prevented from flowing out of the liquid reservoir as much as possible. An annular flange wall extending radially outward from the upper end of the outer wall and a cylindrical projecting wall projecting upward from the outer peripheral edge of the upper surface of the flange wall are attached, and an annular groove is formed on the outer peripheral edge of the flange wall. In the embodiment, even if the liquid flows from the liquid reservoir to the upper surface of the flange wall, the liquid flowing on the surface of the flange wall is accommodated in the groove and flows beyond the flange wall due to the presence of the protruding wall. Thus, even if liquid flows from the liquid reservoir to the surface of the flange, it is sufficiently prevented from flowing to the outer peripheral surface of the upper end portion of the outer container. In the form in which the cross-sectional shape of the discharge hole is circular and has the same diameter except for the upper end portion, and the diameter gradually increases upward at the upper end portion, a portion having an excessively small cross-sectional area is avoided. At the same time, since the cross-sectional area is gradually increased at the tip, in addition to achieving the first technical problem, the discharge hole is not blocked even when the viscosity of the liquid is relatively high.
以下、本発明の吐出ノズルの好適実施形態と共にかかる吐出ノズル部材が適用された容器を図示している添付図面を参照して、更に詳述する。 Hereinafter, it will be described in further detail with reference to the accompanying drawings illustrating a container to which the discharge nozzle member is applied together with a preferred embodiment of the discharge nozzle of the present invention.
図１及び図２を参照して説明すると、本発明に従って構成された吐出ノズルを好都合に適用することができる典型例である図示の容器は外容器２、内容器４及び蓋部材６を具備している。 Referring to FIGS. 1 and 2, the illustrated container, which is a typical example to which the discharge nozzle constructed according to the present invention can be advantageously applied, includes an outer container 2, an inner container 4, and a lid member 6. ing.
比較的軟質の適宜の合成樹脂から形成することができる外容器２は、主部８と肩部１０を介して主部８に接続されている口頸部１２とを有する。主部８は有底楕円筒形状であり、口頸部１２は円筒形状である。外容器２の少なくとも主部８は指で押圧すると撓む柔軟性を有している。外容器２の主部８の一対の広幅外側面には、主部８を押圧する際に指を掛ける部位を表示する縦長楕円形状の凹部１４（その一方を図１に図示している）が形成され、一対の狭幅外側面には、上下方向に細長く延びる矩形凹部１６（その一方を図１に図示している）が形成されている。肩部１０の上面には楕円環状段部１８が形成されている。上端が開放されている口頸部１２の内周面下部には下方を向いた肩面２０が形成されており、内周面下端部の内径はそれより上方の部分の内径よりも若干大きい。口頸部１２の外周面には雄螺条２２が形成されている。 The outer container 2 that can be formed from a relatively soft appropriate synthetic resin has a main portion 8 and a mouth and neck portion 12 connected to the main portion 8 via a shoulder portion 10. The main portion 8 has a bottomed elliptical cylindrical shape, and the mouth and neck portion 12 has a cylindrical shape. At least the main portion 8 of the outer container 2 has flexibility to bend when pressed with a finger. On the pair of wide outer surfaces of the main portion 8 of the outer container 2, there are vertically elongated oval-shaped recesses 14 (one of which is shown in FIG. 1) for displaying a portion on which a finger is put when the main portion 8 is pressed. A rectangular recess 16 (one of which is shown in FIG. 1) that is elongated in the vertical direction is formed on the pair of narrow outer surfaces. An elliptical annular step 18 is formed on the upper surface of the shoulder 10. A shoulder surface 20 facing downward is formed at the lower part of the inner peripheral surface of the mouth and neck portion 12 whose upper end is open, and the inner diameter of the lower end portion of the inner peripheral surface is slightly larger than the inner diameter of the portion above it. A male thread 22 is formed on the outer peripheral surface of the mouth and neck portion 12.
同様に比較的軟質の適宜の合成樹脂から形成することができる内容器４も、主部２４と肩部２６を介して主部２４に接続された口頸部２８を有し、主部２４は有底円筒形状であり、口頸部２８は円筒形状である。内容器４の少なくとも主部２４も指で押圧すると撓む柔軟性を有している。主部２４の外周面上端には環状突条３０が形成されている。口頸部２８の上端には半径方向外方に延在する環状フランジ壁３２が付設されている。内容器４の口頸部２８には本発明に従って構成された吐出ノズル部材３４が装着される。この吐出ノズル部材３４について後に更に詳述する。 Similarly, the inner container 4, which can be formed from a relatively soft appropriate synthetic resin, also has a main part 24 and a mouth / neck part 28 connected to the main part 24 via a shoulder part 26. It has a bottomed cylindrical shape, and the mouth and neck portion 28 has a cylindrical shape. At least the main portion 24 of the inner container 4 also has flexibility to bend when pressed with a finger. An annular ridge 30 is formed at the upper end of the outer peripheral surface of the main portion 24. An annular flange wall 32 extending outward in the radial direction is attached to the upper end of the mouth / neck portion 28. A discharge nozzle member 34 configured according to the present invention is attached to the mouth / neck portion 28 of the inner container 4. The discharge nozzle member 34 will be described in detail later.
比較的硬質の適宜の合成樹脂から形成することができる蓋部材６は略楕円形状の天面壁３６とこの天面壁３６の周縁から垂下するスカート壁３８とを有する。スカート壁３８の外周面は楕円筒形状であるが、内周面は円筒形状である。スカート壁３８の一対の狭幅外側面には上下方向に細長く延びる矩形状の凹部４０が形成されている。スカート壁３８の内周面には雌螺条４２が形成されている。スカート壁３８の下端面には楕円環状段部４４が形成されている。天面壁３６の下面中央部にはシール突起４６が形成されている。 The lid member 6, which can be formed from a relatively hard appropriate synthetic resin, has a substantially elliptical top wall 36 and a skirt wall 38 that hangs down from the periphery of the top wall 36. The outer peripheral surface of the skirt wall 38 has an elliptic cylindrical shape, but the inner peripheral surface has a cylindrical shape. A pair of narrow outer sides of the skirt wall 38 are formed with rectangular recesses 40 that are elongated in the vertical direction. A female thread 42 is formed on the inner peripheral surface of the skirt wall 38. An elliptical annular step 44 is formed on the lower end surface of the skirt wall 38. A seal projection 46 is formed at the center of the lower surface of the top wall 36.
図２を参照することによって明確に理解されるとおり、例えば揮発性有機溶媒を含む歯科用接着剤或いは治療剤である液体を収容した内容器４は外容器２内に収納される。内容器４の口頸部２８に付設されているフランジ壁３２の外周縁部は外容器２の口頸部１２の上端上に載置され、内容器４の主部２４の外周面上端に形成されている突条３０は外容器２の口頸部１２の内周面下部に形成されている肩面２０に係合され、かくして外容器２に対して内容器４が所要とおりに位置せしめられる。蓋部材６は外容器２の口頸部１２に被嵌し、蓋部材６のスカート壁３８の内周面に形成されている雌螺条４２を外容器２の口頸部１２の外周面に形成されている雄螺条２２に螺合せしめることによって外容器２の口頸部１２に装着される。外容器２の口頸部１２に蓋部材６が装着されると、内容器４の装着されている吐出ノズル部材３４が蓋部材６によって覆われる。吐出ノズル部材３４に形成されている排出孔（これについて後に更に詳細に説明する）の先端部に進入して排出孔をシールする。 As clearly understood by referring to FIG. 2, for example, an inner container 4 containing a liquid which is a dental adhesive or a therapeutic agent containing a volatile organic solvent is accommodated in the outer container 2. The outer peripheral edge of the flange wall 32 attached to the mouth / neck part 28 of the inner container 4 is placed on the upper end of the mouth / neck part 12 of the outer container 2 and formed at the upper end of the outer peripheral surface of the main part 24 of the inner container 4. The projected ridge 30 is engaged with a shoulder surface 20 formed at the lower part of the inner peripheral surface of the mouth-and-neck portion 12 of the outer container 2, and thus the inner container 4 is positioned with respect to the outer container 2 as required. . The lid member 6 is fitted on the mouth / neck portion 12 of the outer container 2, and a female thread 42 formed on the inner circumferential surface of the skirt wall 38 of the lid member 6 is attached to the outer circumferential surface of the mouth / neck portion 12 of the outer container 2. It is attached to the mouth and neck portion 12 of the outer container 2 by being screwed into the formed male thread 22. When the lid member 6 is attached to the mouth / neck portion 12 of the outer container 2, the discharge nozzle member 34 to which the inner container 4 is attached is covered with the lid member 6. The discharge hole is formed in the discharge nozzle member 34 (which will be described in more detail later), and the discharge hole is sealed.
内容器４内に収容されている液体を使用する際には、外容器２の口頸部１２から蓋部材６を離脱し、吐出ノズル部材３４を露呈せしめる。次いで、容器の全体を傾動して吐出ノズル部材３４の先端を下方に向け、外容器２の主部８に形成されている凹部１４に指を当接して押圧し、外容器２の主部８と共に内容器４の主部２４を圧縮し、かくして吐出ノズル部材３４を通して液体を排出する。 When the liquid stored in the inner container 4 is used, the lid member 6 is detached from the mouth / neck portion 12 of the outer container 2 and the discharge nozzle member 34 is exposed. Next, the entire container is tilted so that the tip of the discharge nozzle member 34 is directed downward, the finger is brought into contact with and pressed against the recess 14 formed in the main part 8 of the outer container 2, and the main part 8 of the outer container 2 is pressed. At the same time, the main portion 24 of the inner container 4 is compressed, and thus the liquid is discharged through the discharge nozzle member 34.
而して、上述したとおりの容器における吐出ノズル部材３４以外の構成は、本発明に従って構成された吐出ノズル部材３４が適用される容器の典型例を示すものであり、かかる構成は上記特許文献１に開示されている構成に近似乃至実質上同一のものでよく、それ故にかかる構成の詳細についての説明は上記特許文献１に委ね、本明細書においては省略する。 Thus, the configuration other than the discharge nozzle member 34 in the container as described above shows a typical example of a container to which the discharge nozzle member 34 configured according to the present invention is applied. Therefore, the description of the details of the configuration is left to the above-mentioned Patent Document 1 and is omitted in this specification.
次に、図１及び図２と共に図３乃至図６を参照して、本発明に従って構成された吐出ノズル部材３４について詳細に説明する。 Next, the discharge nozzle member 34 configured according to the present invention will be described in detail with reference to FIGS. 3 to 6 together with FIGS.
ポリプロピレン又はポリエチレンの如き適宜の合成樹脂から形成することができる吐出ノズル部材３４は、筒状ノズル部４８を有する。図示の実施形態においては、ノズル部４８の外周面は全体として直立円筒形状であり、図３及び図６を参照することによって明確に理解される如く、上部には円錐台形状部５０が存在し、円錐台形状部５０よりも上方の上端部５２の直径は円錐台形状部５０よりも下方の主部５４の直径よりも幾分小さい。ノズル部４８には、その下端から上端まで貫通する、換言すればその下端から上端まで連続して延びる、排出孔５６が形成されている。排出孔５６は実質上鉛直に延在しており、その横断面形状は円形であり、上端部を除いて同一の内径を有する。排出孔５６の上端部内周面は逆円錐台形状であり、上方に向かって内径が漸次増大している。上記内容器４内に収容される液体の粘度にもよるが、液体の温度が２３℃における粘度が０．０００３乃至５Ｐａｓ程度である場合、排出孔５６における液体の流動が阻害され排出孔５６が液体によって閉塞されてしまうことを回避するために、排出孔５６の主部（上端部を除く部分）の内径Ｄは１．０乃至２．０ｍｍであるのが好ましく、１．２乃至１．７ｍｍであるのがより好ましい。排出孔５６の上端部内周面の鉛直に対する傾斜角度αは３０乃至６０度程度でよい。一方、吐出ノズル部材３４を略倒立状態にした時に液体が排出孔５６を自由に流下して所謂ボタ落ちが発生するのを回避するために、排出孔５６の主部（上端部を除く部分）の長手方向長さ即ち上下方向長さＬは１０．０乃至１９．０ｍｍであるのが好ましく、１３．０乃至１６．０ｍｍであるのがより好ましい。排出孔５６の主部の内径Ｄ及び上下方向長さＬを上記範囲に設定することによって、高粘度の液体においても排出孔５６が液体によって閉塞され難く、粘度の低い液体においてもボタ落ちが生じ難く、従って広範囲の粘度の液体を収納し多容器に好適に用いることができる。 The discharge nozzle member 34 that can be formed from an appropriate synthetic resin such as polypropylene or polyethylene has a cylindrical nozzle portion 48. In the illustrated embodiment, the outer peripheral surface of the nozzle portion 48 has an upright cylindrical shape as a whole, and as is clearly understood by referring to FIGS. The diameter of the upper end 52 above the frustoconical portion 50 is somewhat smaller than the diameter of the main portion 54 below the frustoconical portion 50. The nozzle portion 48 is formed with a discharge hole 56 that penetrates from the lower end to the upper end, in other words, extends continuously from the lower end to the upper end. The discharge hole 56 extends substantially vertically, has a circular cross-sectional shape, and has the same inner diameter except for the upper end. The inner peripheral surface of the upper end portion of the discharge hole 56 has an inverted frustoconical shape, and the inner diameter gradually increases upward. Although depending on the viscosity of the liquid stored in the inner container 4, when the liquid temperature is about 0.0003 to 5 Pas at 23 ° C., the flow of the liquid in the discharge hole 56 is inhibited and the discharge hole 56 is In order to avoid being blocked by the liquid, the inner diameter D of the main portion (portion excluding the upper end portion) of the discharge hole 56 is preferably 1.0 to 2.0 mm, and 1.2 to 1.7 mm. It is more preferable that The inclination angle α with respect to the vertical of the inner peripheral surface of the upper end portion of the discharge hole 56 may be about 30 to 60 degrees. On the other hand, in order to prevent the liquid from freely flowing through the discharge hole 56 when the discharge nozzle member 34 is in an inverted state and causing so-called dripping, the main part (portion excluding the upper end part) of the discharge hole 56. The length in the longitudinal direction, that is, the length L in the vertical direction is preferably 10.0 to 19.0 mm, and more preferably 13.0 to 16.0 mm. By setting the inner diameter D and the vertical length L of the main portion of the discharge hole 56 within the above ranges, the discharge hole 56 is not easily blocked by the liquid even in the high-viscosity liquid, and the liquid drop occurs even in the low-viscosity liquid. Therefore, it is difficult to store liquids with a wide range of viscosities and can be suitably used for multiple containers.
上記ノズル部４８には、その下端から半径方向外方に延在する環状底壁５８が付設されている。図示の実施形態においては、底壁５８は円環状であり、実質上水平に半径方向外方に延在している。所望ならば、底壁５８をノズル部４８の下端からではなく下端部（下端よりも幾分上方の部位）から半径方向外方に延在し、従ってノズル部４８は底壁５８を超えて下方に突出する形態にすることもできる。吐出ノズル部材３４は、更に、底壁５８の外周縁から上方に延びる筒状外側壁６０も含んでおり、ノズル部４８の下半部外周面、底壁５８の上面及び外側壁６０の内周面によって環状液溜６２が規定されている。図示の実施形態においては、外側壁６０の内周面は円筒形状であり、円環形状の液溜６２が規定されている。外側壁６０は底壁５８から上方にノズル部材４８の上下方向中間部に対応する高さまで延びているのが好都合である。外側壁６０の外周面も円筒形状であり、かかる外周面には環状シール突条６３が形成されている。 The nozzle portion 48 is provided with an annular bottom wall 58 extending radially outward from the lower end thereof. In the illustrated embodiment, the bottom wall 58 is annular and extends substantially horizontally and radially outward. If desired, the bottom wall 58 extends radially outward from the lower end (partially above the lower end) rather than from the lower end of the nozzle portion 48 so that the nozzle portion 48 extends below the bottom wall 58 and down. It is also possible to have a form that protrudes into the area. The discharge nozzle member 34 further includes a cylindrical outer wall 60 extending upward from the outer peripheral edge of the bottom wall 58. The lower half outer peripheral surface of the nozzle portion 48, the upper surface of the bottom wall 58, and the inner peripheral surface of the outer wall 60. An annular liquid reservoir 62 is defined by the surface. In the illustrated embodiment, the inner peripheral surface of the outer wall 60 has a cylindrical shape, and an annular liquid reservoir 62 is defined. Conveniently, the outer wall 60 extends upward from the bottom wall 58 to a height corresponding to the middle in the vertical direction of the nozzle member 48. The outer peripheral surface of the outer wall 60 is also cylindrical, and an annular seal protrusion 63 is formed on the outer peripheral surface.
吐出ノズル部材３４には、更に、上記外側壁６０の上端から半径方向外方に延びる環状フランジ壁６４、及びフランジ壁６４の外周縁から上方に突出する筒状の突出壁６６が付設されており、フランジ壁６４の上面には環状の溝部６８が形成されている。図示の実施形態においては、フランジ壁６４は実質上水平に半径方向外方に延びる円環形状であり、突出壁６６は実質上鉛直に上方に突出する円筒形状である。そして、溝部６８は円環形状であり、溝部６８の横断面形状は矩形である。外側壁６０の内周面とフランジ壁６４の上面との境界領域は円弧状であり、突出壁６６の内周面上端部は上方に向かって半径方向外方に傾斜する逆円錐台形状である。 The discharge nozzle member 34 is further provided with an annular flange wall 64 extending radially outward from the upper end of the outer wall 60 and a cylindrical protruding wall 66 protruding upward from the outer peripheral edge of the flange wall 64. An annular groove 68 is formed on the upper surface of the flange wall 64. In the illustrated embodiment, the flange wall 64 has an annular shape that extends substantially radially outward in the radial direction, and the protruding wall 66 has a cylindrical shape that protrudes substantially vertically upward. And the groove part 68 is annular shape, and the cross-sectional shape of the groove part 68 is a rectangle. The boundary region between the inner peripheral surface of the outer wall 60 and the upper surface of the flange wall 64 is arcuate, and the upper end portion of the inner peripheral surface of the projecting wall 66 has an inverted frustoconical shape that is inclined outward in the radial direction. .
本発明の吐出ノズル部材３４においては、上記ノズル部４８の外周面には、周方向に間隔をおいて上下方向に延びる複数個、好ましくは６乃至１０個程度の突条７０が配設されていることが重要である。特に図４乃至図６を参照して説明を続けると、図示の実施形態においては、ノズル部４８の外周面には周方向に等間隔をおいて上下方向に、好ましくは実質上鉛直に、延びる８個の突条７０が配設されている。突条７０の各々の厚さ（周方向寸法）は下方に向かって漸次増大せしめられている。所望ならば、突条７０の各々の厚さを均一にすることもできる。突条７０の各々の半径方向外側縁は、上方に向かって漸次半径方向内側に傾斜して延びる、換言すれば下方に向かって漸次半径方向外方に傾斜して延びる、直線或いは若干の凹条曲線でよく、突条７０の各々の半径方向突出量は上方に向かって漸次減少せしめられている、換言すれば下方に向かって漸次増大せしめられている、のが好都合である。突条７０の各々の半径方向外側縁部の横断面形状は半円形状であるのが好都合である（図３を参照されたい）。突条７０の各々の下端縁は底壁５８に接続されていると共に、突条７０の各々の下端外縁（下端縁の半径方向外側端）は外側壁６０の内周面に近接乃至接続されている。突条７０の各々の上端は、ノズル部４８の上端よりも下方であるが外側壁６０の上端よりも上方に位置するのが好ましく、図示の実施形態においては突条７０の上端はノズル部４８の上記円錐台形状部５０の下端に合致せしめられている。 In the discharge nozzle member 34 of the present invention, on the outer peripheral surface of the nozzle portion 48, a plurality of, preferably about 6 to 10 protrusions 70 extending in the vertical direction are arranged at intervals in the circumferential direction. It is important that In particular, referring to FIGS. 4 to 6, in the illustrated embodiment, the outer peripheral surface of the nozzle portion 48 extends in the up-down direction, preferably substantially vertically, at equal intervals in the circumferential direction. Eight ridges 70 are provided. The thickness (circumferential dimension) of each protrusion 70 is gradually increased downward. If desired, the thickness of each of the protrusions 70 can be made uniform. The radially outer edge of each of the protrusions 70 extends obliquely inward in the radial direction toward the upper side, in other words, extends linearly or slightly concavely in a downwardly inclined direction outward in the radial direction. It may be a curve, and it is convenient that the radial protrusion amount of each of the protrusions 70 is gradually decreased upward, in other words, gradually increased downward. Conveniently, the cross-sectional shape of each radially outer edge of the ridge 70 is semicircular (see FIG. 3). The lower end edge of each protrusion 70 is connected to the bottom wall 58, and the lower end outer edge (radially outer end of the lower end edge) of each protrusion 70 is close to or connected to the inner peripheral surface of the outer wall 60. Yes. The upper end of each of the protrusions 70 is preferably lower than the upper end of the nozzle portion 48 but higher than the upper end of the outer wall 60. In the illustrated embodiment, the upper end of the protrusion 70 is the nozzle portion 48. And the lower end of the truncated cone-shaped portion 50.
図２を参照することによって明確に理解されるとおり、上述したとおりの吐出ノズル部材３４は、その外側壁６０を内容器４の口頸部２８内に嵌入することによって内容器４の口頸部２８に装着される。外側壁６０の外周面に形成されているシール突条６３が内容器４の口頸部２８の内周面に密接せしめられる。吐出ノズル部材３４のフランジ壁６４の下面は内容器４の口頸部２８の上端に配設されているフランジ壁３２の上面に当接され、これによって内容器４の口頸部２８の対する吐出ノズル部材３４の上下方向位置が規制される。 As clearly understood by referring to FIG. 2, the discharge nozzle member 34 as described above has the outer wall 60 fitted into the mouth neck portion 28 of the inner container 4 to fit the mouth neck portion of the inner container 4. 28. A seal protrusion 63 formed on the outer peripheral surface of the outer wall 60 is brought into close contact with the inner peripheral surface of the mouth / neck portion 28 of the inner container 4. The lower surface of the flange wall 64 of the discharge nozzle member 34 is brought into contact with the upper surface of the flange wall 32 disposed at the upper end of the mouth / neck portion 28 of the inner container 4, thereby discharging the mouth / neck portion 28 of the inner container 4. The vertical position of the nozzle member 34 is restricted.
上述したとおり、外容器２の口頸部１２から蓋部材６を離脱して吐出ノズル部材３４を露呈せしめ、次いで外容器２及び内容器４を傾動して吐出ノズル部材３４の先端を下方に向け、しかる後に外容器２の主部８を押圧して外容器２の主部８と共に内容器４の主部２４を圧縮して内容器４に収容されている液体を吐出ノズル部材３４の排出孔５６を通して排出する際には、排出孔５６から排出された液体が吐出ノズル部材３４から離脱することなくノズル部４８の外周面に流動することがある。かような液体は、容器の全体が正立状態に戻されると、ノズル部４８の外周面に沿って流下して液溜６２内に流入する。外容器２の口頸部１２から蓋部材６を離脱せしめて再び外容器２及び内容器４を傾動せしめて吐出ノズル部材３４の先端を下方に向けると、液溜６２内の液体はノズル部４８の外周面又は外側壁６０の内周面に沿って流下せんとするが、本発明の吐出ノズル部材３４においては、ノズル部材４８の外周面に周方向に間隔をおいて上下方向に延びる複数個の突条７０が形成されている故に、液溜６２内の液体と吐出ノズル部材３４の表面との接触面積が大幅に増大され、これによって液体の表面張力に起因する液溜６２からの液体流出阻止力（液体流出抵抗）が大幅に増大され、液溜６２からの液体の流出が可及的に防止される。 As described above, the lid member 6 is detached from the mouth / neck portion 12 of the outer container 2 to expose the discharge nozzle member 34, and then the outer container 2 and the inner container 4 are tilted so that the tip of the discharge nozzle member 34 faces downward. Thereafter, the main portion 8 of the outer container 2 is pressed to compress the main portion 24 of the inner container 4 together with the main portion 8 of the outer container 2, thereby discharging the liquid contained in the inner container 4 to the discharge hole of the discharge nozzle member 34. When the liquid is discharged through the discharge hole 56, the liquid discharged from the discharge hole 56 may flow to the outer peripheral surface of the nozzle portion 48 without leaving the discharge nozzle member 34. Such liquid flows down along the outer peripheral surface of the nozzle portion 48 and flows into the liquid reservoir 62 when the entire container is returned to the upright state. When the lid member 6 is detached from the mouth / neck portion 12 of the outer container 2, the outer container 2 and the inner container 4 are tilted again, and the tip of the discharge nozzle member 34 is directed downward, the liquid in the liquid reservoir 62 becomes the nozzle portion 48. In the discharge nozzle member 34 of the present invention, a plurality of nozzles 48 extending in the vertical direction are spaced apart from each other in the circumferential direction on the outer circumferential surface of the nozzle member 48. Since the protrusions 70 are formed, the contact area between the liquid in the liquid reservoir 62 and the surface of the discharge nozzle member 34 is greatly increased, thereby causing the liquid outflow from the liquid reservoir 62 due to the surface tension of the liquid. The blocking force (liquid outflow resistance) is greatly increased, and the outflow of liquid from the liquid reservoir 62 is prevented as much as possible.
更に、本発明の吐出ノズル部材３４においては、液溜６２から液体が流出してフランジ壁６４の上面に流動したとしても、フランジ壁６４の上面を半径方向外方に流動する液体はフランジ壁６４の上面に形成されている溝部６８内に補足され、そしてまた溝部６８から更に流出したとしても突出壁６６によって半径方向外方向への流動が阻止される。かくして、液体が外容器２の口頸部１２の外周面まで流動してしまうことが充分確実に回避される。そのため、液体が重合性単量体及び重合触媒を含む歯科用接着剤の場合でも、外容器２の口頸部１２と蓋部材６との間で液体の硬化が生じることによって蓋部材６の離脱が困難になることがない。 Further, in the discharge nozzle member 34 of the present invention, even if the liquid flows out from the liquid reservoir 62 and flows to the upper surface of the flange wall 64, the liquid flowing radially outward on the upper surface of the flange wall 64 is the flange wall 64. The protrusion wall 66 prevents the flow outward in the radial direction even when the groove 68 is further discharged from the groove 68. Thus, it is possible to reliably and reliably prevent the liquid from flowing to the outer peripheral surface of the mouth neck portion 12 of the outer container 2. Therefore, even when the liquid is a dental adhesive containing a polymerizable monomer and a polymerization catalyst, the liquid is cured between the mouth / neck portion 12 of the outer container 2 and the lid member 6 so that the lid member 6 is detached. Will not be difficult.
２：外容器
４：内容器
６：蓋部材
３４：吐出ノズル部材
４８：ノズル部
５６：排出孔
５８：底壁
６０：外側壁
６４：フランジ壁
６６：突出壁
６８：溝部
７０：突条
2: Outer container 4: Inner container 6: Lid member 34: Discharge nozzle member 48: Nozzle part 56: Discharge hole 58: Bottom wall 60: Outer wall 64: Flange wall 66: Projection wall 68: Groove part 70: Projection
Claims (9)
該ノズル部の外周面には、周方向に間隔をおいて上下方向に延びる複数個の突条が配設されている、ことを特徴とする吐出ノズル部材。 A cylindrical nozzle portion in which a discharge hole penetrating from the lower end to the upper end is formed, an annular bottom wall extending radially outward from the lower end or the lower portion of the nozzle portion, and a cylinder extending upward from the outer peripheral edge of the bottom wall In the discharge nozzle member including the outer wall, the annular liquid reservoir is defined by the outer peripheral surface of the nozzle portion, the upper surface of the bottom wall, and the inner peripheral surface of the outer wall.
A discharge nozzle member, characterized in that a plurality of protrusions extending in the vertical direction are arranged on the outer peripheral surface of the nozzle portion at intervals in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017025028A JP6830241B2 (en) | 2017-02-14 | 2017-02-14 | Discharge nozzle member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017025028A JP6830241B2 (en) | 2017-02-14 | 2017-02-14 | Discharge nozzle member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2018130225A true JP2018130225A (en) | 2018-08-23 |
| JP6830241B2 JP6830241B2 (en) | 2021-02-17 |
Family
ID=63247841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017025028A Active JP6830241B2 (en) | 2017-02-14 | 2017-02-14 | Discharge nozzle member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6830241B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09286452A (en) * | 1996-04-20 | 1997-11-04 | Kao Corp | Cap for liquid container |
| JPH10218219A (en) * | 1997-02-03 | 1998-08-18 | Kao Corp | Liquid-applying cap |
| JP2000176355A (en) * | 1998-12-15 | 2000-06-27 | Kao Corp | Coating cap |
| CN104249851A (en) * | 2013-06-28 | 2014-12-31 | 颜晋钦 | Sealing cover for tea canister |
| JP2015157643A (en) * | 2014-02-24 | 2015-09-03 | 株式会社トクヤマデンタル | liquid container |
-
2017
- 2017-02-14 JP JP2017025028A patent/JP6830241B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09286452A (en) * | 1996-04-20 | 1997-11-04 | Kao Corp | Cap for liquid container |
| JPH10218219A (en) * | 1997-02-03 | 1998-08-18 | Kao Corp | Liquid-applying cap |
| JP2000176355A (en) * | 1998-12-15 | 2000-06-27 | Kao Corp | Coating cap |
| CN104249851A (en) * | 2013-06-28 | 2014-12-31 | 颜晋钦 | Sealing cover for tea canister |
| JP2015157643A (en) * | 2014-02-24 | 2015-09-03 | 株式会社トクヤマデンタル | liquid container |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6830241B2 (en) | 2021-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DK169503B1 (en) | Packaging for storing and dispensing liquids or fluidized materials | |
| ES2912470T3 (en) | Spray cap for spray container | |
| JP2016501163A (en) | Multiflow dose cap | |
| JP6478564B2 (en) | Pouring spout | |
| JP2018130225A (en) | Discharge nozzle member | |
| RO121335B1 (en) | Squeeze spray device | |
| JP2017154772A (en) | Extraction cap | |
| US6095374A (en) | Closure for supporting a container of viscous liquid | |
| JP2007145353A (en) | Cap | |
| JP2007145352A (en) | Cap | |
| JP6921639B2 (en) | Discharge cap | |
| JP4756955B2 (en) | Discharge cap | |
| JP6942650B2 (en) | Injection container | |
| JP6706240B2 (en) | Squeeze container cap | |
| JP6294609B2 (en) | Squeeze container with nozzle cap | |
| JP6797678B2 (en) | Injection container | |
| JP6465717B2 (en) | Application container | |
| JP6632801B2 (en) | Compound liquid cap that can be dispensed | |
| JP2021155085A (en) | Plastic cap excellent at liquid drainage | |
| JP7199862B2 (en) | cap for squeeze container | |
| JP6456797B2 (en) | Squeeze foamer container | |
| JP6890143B2 (en) | Refill container and lid | |
| JP7289685B2 (en) | cap | |
| JP6730179B2 (en) | Cap with comb | |
| JP6183846B2 (en) | Refill container stopper |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191125 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20200918 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200929 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20201111 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210105 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210112 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 6830241 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |