JP2009035288A - Double barrel injector - Google Patents

Double barrel injector Download PDF

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JP2009035288A
JP2009035288A JP2007200144A JP2007200144A JP2009035288A JP 2009035288 A JP2009035288 A JP 2009035288A JP 2007200144 A JP2007200144 A JP 2007200144A JP 2007200144 A JP2007200144 A JP 2007200144A JP 2009035288 A JP2009035288 A JP 2009035288A
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syringe
base
contents
wall
elastic tongue
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JP4878011B2 (en
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Toru Toma
當麻　　徹
Satoshi Sakamoto
智 坂本
Yoshiyuki Tsunoda
義幸 角田
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a double barrel injector suitable for mixing contents of different kinds just before use and discharging the mixture, and attached to/detached from a syringe. <P>SOLUTION: The double running type spouting instrument is constituted by being equipped with the syringe 1 equipped with space regions M1 filling different contents and arranged in parallel, pistons 2a slidably pressing in respective space regions M1, plungers 3a and 3b whose back end parts are integrally connected by a flange part 4 so as to be synchronously operable, and a spouting nozzle 5 at the front end part of the syringe 1. A base 5a having passages S1 connected to respective cylindrical bodies 1a and 1b of the syringe 1, and a single cylindrical body 5b with a fine diameter provided on the top wall of the base 5a, joins respective passages S1 of the base 5a, mixes the contents therein and forms an outlet side passage, is provided on the spouting nozzle 5. An elastic tongue piece 7a which has a pawl part linked with the outer side wall of the syringe 1 and fixes and holds the spouting nozzle 5 on the syringe 1 is provided on the opposing side wall of the base 5a, and a lever 8a for separating the elastic tongue piece 7a from the outer side wall of the syringe 1 and releasing the linking with the nail part is provided on the syringe 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、種類の異なる内容物を使用直前で混合、排出するのに適した2連式注出器に関するものである。   The present invention relates to a double dispenser suitable for mixing and discharging different types of contents immediately before use.

歯科診療等においては、充填剤や接着剤等、粘性の高いペースト状の材料が頻繁に使用されており、通常は、プランジャーを押圧して細径のノズルから該材料を注出する注射器タイプの注出器が使用されている。   In dental practice etc., highly viscous paste-like materials such as fillers and adhesives are frequently used. Usually, a syringe type that pushes a plunger and pours out the material from a small-diameter nozzle The dispenser is used.

係る注出器は、シリンダーに充填した内容物を複数回に分けて注出するのが普通（材料を一度の治療でもって使い切ることはない。）であるが、近年では、種類の異なる材料をノズル部において混合して使用する商品も開発されてきており、これに対応する注出器として2連タイプの注出器が多数提案されている（例えば、特許文献1参照）ところ、この種の注出器にあっては、混合された内容物がノズル部において残存するのが避けられないため、使用状態のままで注出器を保管した場合に、残存した材料がノズル部内で固化してしまうことがあり、次回の使用に際しては内容物を注出することができないおそれがあった。
特開2003-341749号公報 In such a dispenser, the contents filled in the cylinder are usually dispensed in multiple times (the material is not used up by a single treatment), but in recent years, different types of materials have been used. Products that are mixed and used in the nozzle section have been developed, and a number of double-type dispensers have been proposed as corresponding dispensers (see, for example, Patent Document 1). In the dispenser, it is inevitable that the mixed contents remain in the nozzle part. Therefore, when the dispenser is stored in the used state, the remaining material solidifies in the nozzle part. There was a possibility that the contents could not be poured out at the next use.
JP2003-341749

本発明の課題は、上記のような従来の問題を回避し得る新規な2連式注出器を提案するところにある。   An object of the present invention is to propose a novel double dispenser capable of avoiding the conventional problems as described above.

本発明は、種類の異なる内容物をそれぞれ充填する並列配置になる2つの空間領域を備えたシリンジと、このシリンジの各空間領域内にて摺動可能に配置され、内容物をシリンジの先端に設けた筒体に向けてそれぞれ押圧するピストンと、このピストンを支持するとともにその後端部分を鍔部にて一体連結して同期操作を可能としたプランジャーと、前記シリンジの先端部に配置され、シリンジの筒体を通して押し出された内容物を外界へ向けて排出する注出ノズルとを備え、
前記注出ノズルは、シリンジの各筒体につながる通路を有するベースと、このベースの天壁に設けられ、ベースの各通路を合流させてその内部にて内容物の出側通路を形成する単一の細径筒体からなり、
前記ベースの対向側壁に、シリンジの外側壁に連係する爪部を有し該注出ノズルをシリンジに固定保持する弾性舌片を設け、
前記シリンジに、弾性舌片をシリンジの外側壁から引き離す向きに押し上げて爪部との連係を解除するレバーを設けたことを特徴とする2連式注出器である。 The present invention is a syringe provided with two space regions that are arranged in parallel to fill different types of contents, and is slidably disposed in each space region of the syringe, with the contents at the tip of the syringe. A piston that presses each of the cylinders that are provided, a plunger that supports the piston and connects the rear end portion thereof integrally with the collar portion to enable synchronous operation, and is arranged at the distal end portion of the syringe, A dispensing nozzle for discharging the contents pushed out through the syringe barrel toward the outside,
The pouring nozzle is provided on a base having passages connected to the respective cylinders of the syringe, and the top wall of the base. The pouring nozzle joins the passages of the base to form an outlet passage for the contents therein. Consisting of a single thin tube,
On the opposite side wall of the base, there is provided an elastic tongue piece that has a claw portion linked to the outer wall of the syringe and holds the extraction nozzle fixed to the syringe,
The double dispenser is characterized in that the syringe is provided with a lever that lifts the elastic tongue piece away from the outer wall of the syringe and releases the linkage with the claw portion.

上記の2連式注出器において、前記レバーは、シリンジの外側壁に設けられたフレームと、このフレームに揺動可能に支持され、弾性舌片とシリンジとの相互間に介在する先端部を引き起こして弾性舌片をシリンジの外側壁から引き離す操作片にて構成するのが好ましい。   In the above-described double dispenser, the lever includes a frame provided on the outer wall of the syringe and a tip that is swingably supported by the frame and interposed between the elastic tongue piece and the syringe. It is preferable that the elastic tongue piece is constituted by an operation piece that causes the elastic tongue piece to be separated from the outer wall of the syringe.

レバーの操作のみで注出ノズルをシリンジから取り外すことが可能なので使用後における注出ノズルの洗浄を速やかに実施することによりズル内部に残存する内容物を確実に取り除くことができる。   Since the dispensing nozzle can be removed from the syringe only by operating the lever, the contents remaining in the inside of the nozzle can be surely removed by quickly cleaning the dispensing nozzle after use.

また、注出ノズルを取り外したシリンジの筒体にレフィルタイプのキャップを取り付けておくことにより内容物の品質を長期間安定的に保持できる。   Moreover, the quality of the contents can be stably maintained for a long period of time by attaching a refill-type cap to the syringe barrel from which the dispensing nozzle has been removed.

以下、図面を参照して本発明をより具体的に説明する。
図1〜5は本発明にしたがう2連式注出器の実施の形態を示したものであり、図1は正面図（中心線を境にして紙面左側が外観を示しており、右側が断面を示している。）、図2は図1の右側の側面図（中心線を境にして紙面左側が外観を示しており、右側が図1のX-X断面を示している。）、図3は図1の平面図、図4は注出ノズルの外観斜視図、そして図5はシリンジの先端部の外観斜視図である。 Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIGS. 1 to 5 show an embodiment of a double dispenser according to the present invention. FIG. 1 is a front view (the left side of the drawing shows the appearance with the center line as the boundary, and the right side is a cross-section) 2 is a side view of the right side of FIG. 1 (the left side of the drawing shows the appearance from the center line, and the right side shows the XX cross section of FIG. 1), FIG. FIG. 4 is a plan view of FIG. 1, FIG. 4 is an external perspective view of the dispensing nozzle, and FIG. 5 is an external perspective view of the distal end portion of the syringe.

図における番号1はシリンジである。このシリンジ1は種類の異なる内容物をそれぞれ充填する並列配置になる2つの空間領域M１、M２（図1、図2参照）を備えた単一部材からなっている。シリンジ1の先端部には空間領域M１、M２につながる筒体1a、1bが形成されており、その末端にはプランジャーを挿入する開口1c、1dが形成されている。 Number 1 in the figure is a syringe. The syringe 1 is composed of a single member having two space regions M 1 and M 2 (see FIG. 1 and FIG. 2) that are arranged in parallel and filled with different types of contents. Cylindrical bodies 1a and 1b connected to the space regions M 1 and M 2 are formed at the distal end portion of the syringe 1, and openings 1c and 1d for inserting a plunger are formed at the ends thereof.

また、2a、2bはシリンジ1の空間領域M１、M２内に摺動可能に配置されたピストン、3a、3bはピストン2a、2bを支持するプランジャー、4はプランジャー3a、3bの後端部分を一体連結して該プランジャー3a、3bの同期操作（同時押し込み）を可能とする鍔部、5はシリンジ1の筒体1a、1bを通して押し出された内容物を外界へ向けて排出する注出ノズルである。 Further, 2a, 2b is a piston disposed slidably in the spatial region M 1, M 2 of the syringe 1, 3a, 3b the piston 2a, the plunger supporting the 2b, the plunger 3a 4, after 3b The flange part 5 which enables the synchronous operation (simultaneous pushing) of the plungers 3a and 3b by integrally connecting the end parts, 5 discharges the contents pushed out through the cylinders 1a and 1b of the syringe 1 toward the outside. It is a dispensing nozzle.

注出ノズル5はシリンジ1の筒体1a、1bを取り囲むベース5aと、このベース5aの天壁5a１に一体連結して内容物の出側通路を形成する単一の細径筒体5bからなる。ベース5a内にはシリンジ1の筒体1a、1bにつながる通路S１、S２が設けられており（図1、2参照）、細径筒体5bの出側通路の入口（細径筒体5bの最下端）で合流している。 Pouring nozzle 5 of the syringe 1 cylindrical body 1a, a base 5a surrounding the 1b, from a single thin cylindrical body 5b to form the left side passage of the contents are integrally connected to the top wall 5a 1 of the base 5a Become. In the base 5a, there are provided passages S 1 and S 2 connected to the cylinders 1a and 1b of the syringe 1 (see FIGS. 1 and 2), and an inlet (small diameter cylinder) of the outlet side passage of the small diameter cylinder 5b. It merges at the bottom end of 5b.

6は細径筒体5bの出側通路内に配置されたスクリュー状のミキシング部材である。シリンジ1の各空間領域M１、M２内から押し出された内容物は細径筒体5bを通過する間にミキシング部材6により混合されてその先端部から外界へと排出される。 Reference numeral 6 denotes a screw-like mixing member disposed in the outlet side passage of the small-diameter cylindrical body 5b. The contents pushed out from the space areas M 1 and M 2 of the syringe 1 are mixed by the mixing member 6 while passing through the small-diameter cylindrical body 5b, and discharged from the tip portion to the outside.

さらに、7a、7bはベース5aの対向位置の下端に設けられた弾性舌片である（図2、4参照）。この弾性舌片7a、7bはその内壁面の上部にシリンジ1の先端部に形成した突起1ｅ、1ｆ（図5参照）に係合して注出ノズル5をシリンジ1に固定保持する爪部7a１、7b１を有している。 Furthermore, 7a and 7b are elastic tongue pieces provided at the lower ends of the opposing positions of the base 5a (see FIGS. 2 and 4). The elastic tongue pieces 7a and 7b are engaged with protrusions 1e and 1f (see FIG. 5) formed on the tip of the syringe 1 on the upper part of the inner wall surface thereof, and the claw portion 7a for fixing and holding the dispensing nozzle 5 to the syringe 1 1 and 7b 1 .

8a、8bは注出ノズル5を取り外すためのレバーである。このレバー8a、8bはシリンジ1の外側壁に設けられたフレーム8a１、8b１と、このフレーム8a１、8b１にばね片Pを介して弾性支持される操作片8a２、8b２からなっている（図1、5参照）。操作片8a２、8b２はシリンジ1の幅方向中央の外側壁に一体に設けられた突起tを支点に揺動可能になっており、該操作片8a２、8b２の先端部8a２′、8b２′は弾性舌片7a、7bとシリンジ1の外側壁との相互間に位置している。 Reference numerals 8a and 8b denote levers for removing the dispensing nozzle 5. The levers 8a and 8b include frames 8a 1 and 8b 1 provided on the outer wall of the syringe 1, and operation pieces 8a 2 and 8b 2 that are elastically supported by the frames 8a 1 and 8b 1 via spring pieces P. (See Figures 1 and 5). The operation pieces 8a 2 and 8b 2 are swingable with a protrusion t integrally provided on the outer wall at the center in the width direction of the syringe 1 as a fulcrum, and the distal ends 8a 2 ′ of the operation pieces 8a 2 and 8b 2 , 8b 2 ′ are located between the elastic tongues 7a, 7b and the outer wall of the syringe 1.

さらに、9はプランジャー3bの外表面にその軸芯に沿って設けられた凹凸（図2参照）、10はシリンジ1に設けられた弾性片である（図1参照）。この弾性片10の下端部の内壁面には凹凸9に適合する爪部10aが設けられており、プランジャー3a、3bの操作（押し込み操作）に際して該爪部10aを凹凸9に沿ってスライドさせることによりクリック感、クリック音を発生させる（クリック感、クリック音の回数を把握することで定量注出を可能とする。）。   Further, 9 is an unevenness provided on the outer surface of the plunger 3b along its axis (see FIG. 2), and 10 is an elastic piece provided on the syringe 1 (see FIG. 1). The inner wall surface of the lower end portion of the elastic piece 10 is provided with a claw portion 10a adapted to the unevenness 9, and the claw portion 10a is slid along the unevenness 9 when the plungers 3a and 3b are operated (pressing operation). To generate a click feeling and a click sound (by determining the number of click feeling and click sounds, quantitative dispensing is possible).

上記の構成になる2連式注出器は、弾性舌片7a、7bの爪部7a１、7b１を、シリンジ1の先端部に設けた突起1e、1ｆに係合させるだけで注出ノズル5をシリンジ1に装着することが可能であり、また、レバー8a、8bの操作片8a２、8b２を図6（図1のY-Y断面の要部拡大図）に示すように押圧するとともに注出ノズル7a、7bを引き上げるのみで該注出ノズル5を取り外すことができ、注出ノズル5の洗浄を簡単に行い得る。 The double-type dispenser having the above-described configuration is formed by simply engaging the claw portions 7a 1 and 7b 1 of the elastic tongue pieces 7a and 7b with the projections 1e and 1f provided at the tip of the syringe 1. 5 can be attached to the syringe 1, and the operating pieces 8a 2 and 8b 2 of the levers 8a and 8b are pressed as shown in FIG. 6 (enlarged view of the principal part of the YY cross section of FIG. 1). The dispensing nozzle 5 can be removed simply by pulling up the dispensing nozzles 7a and 7b, and the dispensing nozzle 5 can be easily cleaned.

前記弾性舌片7a、7bはそれぞれ異なる幅h１、h２（図4参照）とし、フレーム9a１、9b１の間口W１、W２（図5参照）を該弾性舌片7a、7bの幅h１、h２に応じた寸法に設定しておくことにより注出ノズル5の位置合わせ（位置合わせとは、注出ノズル5を取り付ける向けを常に一定とすることをいうものとする。すなわち、通路S１で筒体1aを嵌合させ、通路S２で筒体1bを嵌合させることをいうものとする。）が可能となる。注出ノズル5の位置合わせは弾性舌片7a、7bの厚さを変更することにより対応してもよい。 The elastic tongue pieces 7a and 7b have different widths h 1 and h 2 (see FIG. 4), and the openings W 1 and W 2 (see FIG. 5) of the frames 9a 1 and 9b 1 are formed on the elastic tongue pieces 7a and 7b. By setting the dimensions according to the widths h 1 and h 2 , the position of the pouring nozzle 5 is aligned (positioning means that the direction in which the pouring nozzle 5 is attached is always constant. the cylindrical body 1a is fitted in the passage S 1, it is assumed that means that fitting the cylindrical body 1b by passage S 2.) can be performed. The alignment of the dispensing nozzle 5 may be handled by changing the thickness of the elastic tongue pieces 7a and 7b.

シリンジ1内の内容物の品質を長期にわたって維持するためには図7（a）（b）に示すようなレフィルタイプのキャップを取り付けてシリンジ1の筒体1a、1bの先端開孔を密封する。   In order to maintain the quality of the contents in the syringe 1 over a long period of time, attach a refill-type cap as shown in FIGS. 7 (a) and 7 (b) to seal the tip openings of the cylinders 1a and 1b of the syringe 1. .

上掲図7（a）（b）に示したキャップはシリンジ1a、1bに嵌合する凹部11、12を備えたものであり、細径筒体5bを有しない他は基本的には注出ノズル5と同様の構成となる。   The caps shown in FIGS. 7 (a) and 7 (b) are provided with recesses 11 and 12 that fit into the syringes 1a and 1b, and are basically dispensed except that they do not have the thin cylindrical body 5b. The configuration is the same as that of the nozzle 5.

注出ノズルの着脱を簡便かつ迅速に行うことができる2連式注出器が提供できる。   It is possible to provide a double-type dispenser that can easily and quickly attach and remove the dispensing nozzle.

本発明にしたがう2連式注出器の正面図である。FIG. 2 is a front view of a double dispenser according to the present invention. 図1に示した注出器の側面図（断面部分は図1のX-X断面）である。FIG. 2 is a side view of the extractor shown in FIG. 図1の平面を示した図である。FIG. 2 is a view showing a plane of FIG. 図1に示した注出ノズルの外観斜視図である。FIG. 2 is an external perspective view of a dispensing nozzle shown in FIG. 図1に示したシリンジの先端部の外観斜視図である。FIG. 2 is an external perspective view of a distal end portion of the syringe shown in FIG. 図1に示した注出キャップの取り外し状況を示した図である（図1のY-Y断面の要部拡大図）。FIG. 2 is a view showing a removal state of the pouring cap shown in FIG. 1 (an enlarged view of the main part of the YY cross section of FIG. 1). (a)は本発明に適用し得るキャップの側面を示した図であり、（b）は（a）のA-A断面を示した図である。(a) is the figure which showed the side surface of the cap which can be applied to this invention, (b) is the figure which showed the AA cross section of (a).

符号の説明Explanation of symbols

1 シリンジ
2a、2b ピストン
3a、3b プランジャー
4 鍔部
5 注出ノズル
6 ミキシング部材
7a、7b 弾性舌片
8a、8b レバー
8a１、8b１ フレーム
8a２、8b２ 操作片
9 凹凸
10 弾性片
11 凹部
12 凹部
M１、M２ 空間領域
S１、S２ 通路 1 syringe
2a, 2b piston
3a, 3b plunger
4 Buttocks
5 Pouring nozzle
6 Mixing material
7a, 7b Elastic tongue
8a, 8b lever
8a 1 , 8b 1 frame
8a 2 , 8b 2 operation pieces
9 Concavity and convexity
10 Elastic piece
11 Recess
12 Recess
M 1, M 2 space area
S 1, S 2 passage

Claims (2)

種類の異なる内容物をそれぞれ充填する並列配置になる2つの空間領域を備えたシリンジと、このシリンジの各空間領域内にて摺動可能に配置され、内容物をシリンジの先端に設けた筒体に向けてそれぞれ押圧するピストンと、このピストンを支持するとともにその後端部分を鍔部にて一体連結して同期操作を可能としたプランジャーと、前記シリンジの先端部に配置され、シリンジの筒体を通して押し出された内容物を外界へ向けて排出する注出ノズルとを備え、
前記注出ノズルは、シリンジの各筒体につながる通路を有するベースと、このベースの天壁に設けられ、ベースの各通路を合流させてその内部にて内容物の出側通路を形成する単一の細径筒体からなり、
前記ベースの対向側壁に、シリンジの外側壁に連係する爪部を有し該注出ノズルをシリンジに固定保持する弾性舌片を設け、
前記シリンジに、弾性舌片をシリンジの外側壁から引き離して爪部との連係を解除するレバーを設けたことを特徴とする2連式注出器。 Syringe with two space regions that are arranged in parallel to fill different types of contents, and a cylinder that is slidably disposed in each space region of the syringe and that has the contents provided at the tip of the syringe A piston that presses each of the syringes, a plunger that supports the piston, and a rear end portion of which is integrally connected by a collar portion to enable a synchronous operation; and a syringe cylinder disposed at the distal end of the syringe. A discharge nozzle for discharging the content extruded through the outside to the outside,
The pouring nozzle is provided on a base having passages connected to the respective cylinders of the syringe, and the top wall of the base. The pouring nozzle joins the passages of the base to form an outlet passage for the contents therein. Consisting of a single thin tube,
On the opposite side wall of the base, there is provided an elastic tongue piece that has a claw portion linked to the outer wall of the syringe and holds the extraction nozzle fixed to the syringe,
A double dispenser characterized in that the syringe is provided with a lever that releases the elastic tongue from the outer wall of the syringe and releases the linkage with the claw portion. 前記レバーは、シリンジの外側壁に設けられたフレームと、このフレームに揺動可能に支持され、弾性舌片とシリンジとの相互間に介在する先端部を引き起こして弾性舌片をシリンジの外側壁から引き離す操作片からなる請求項1記載の2連式注出器。   The lever has a frame provided on the outer wall of the syringe, and is supported by the frame so as to be able to swing. The tip of the elastic tongue and the syringe is interposed between the lever and the outer tongue of the syringe. 2. The double dispenser according to claim 1, comprising an operation piece that is separated from the two-way type.
JP2007200144A 2007-07-31 2007-07-31 Double type dispenser Expired - Fee Related JP4878011B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0326776A (en) * 1989-06-19 1991-02-05 Minnesota Mining & Mfg Co <3M> Acrylic agglutinant
JPH0563066A (en) * 1991-08-30 1993-03-12 Shin Etsu Handotai Co Ltd Structure for engagement with wafer container
JP2006034960A (en) * 2004-07-16 2006-02-09 Dentaco Dentalindustrie & -Marketing Gmbh Multi-chamber ampoule for dosing mixture comprising a plurality of substances

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0326776A (en) * 1989-06-19 1991-02-05 Minnesota Mining & Mfg Co <3M> Acrylic agglutinant
JPH0563066A (en) * 1991-08-30 1993-03-12 Shin Etsu Handotai Co Ltd Structure for engagement with wafer container
JP2006034960A (en) * 2004-07-16 2006-02-09 Dentaco Dentalindustrie & -Marketing Gmbh Multi-chamber ampoule for dosing mixture comprising a plurality of substances

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