JP2004261720A - Suction pipe made of synthetic resin for jetting container, molding method of the same, and liquid jetting container using the same - Google Patents

Suction pipe made of synthetic resin for jetting container, molding method of the same, and liquid jetting container using the same Download PDF

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JP2004261720A
JP2004261720A JP2003055036A JP2003055036A JP2004261720A JP 2004261720 A JP2004261720 A JP 2004261720A JP 2003055036 A JP2003055036 A JP 2003055036A JP 2003055036 A JP2003055036 A JP 2003055036A JP 2004261720 A JP2004261720 A JP 2004261720A
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Prior art keywords
suction pipe
pipe
synthetic resin
container
cylindrical portion
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JP2003055036A
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JP4145682B2 (en
Inventor
Etsuo Iwasaki
悦夫 岩崎
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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 position a lower end of a suction pipe, which is made of a synthetic resin, formed in a V-shape, and hung down in a jetting container from a jetting apparatus, at a side portion of the front side of the bottom wall of the container even if the length of the casing of the jetting container or the length of the suction pipe is not necessarily constant by making the pipe easy to be bent. <P>SOLUTION: A plurality of grooves 5 are formed in the outer face of an approximately center part of a half cylindrical portion 4a along the axial line of a suction pipe 4 while the direction of the grooves being kept approximately at right angles to the pipe axial direction and the suction pipe 4 is bent to have a V-shape form by bending the pipe 4 along the grooves 5. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、トリガー式ないし縦形ポンプ式等の噴出容器の合成樹脂製吸上げパイプと、該合成樹脂製吸上げパイプの成形方法と、上記吸上げパイプを用いた液体噴出容器とに関する。
【０００２】
【従来の技術】
容器体上部へ装着させた、トリガー式液体噴出器の下端から容器体内へ吸上げパイプを垂下させ、トリガー操作で容器体内液体を液体噴出器内へ吸上げ、かつ該吸上げ液体を射出筒先端から噴出させることは、特許文献１等が示すように周知である。
【０００３】
【特許文献１】
特開２００１−１３７７４９号公報
【０００４】
【発明が解決しようとする課題】
上記噴出器の吸上げパイプは、くの字状に弯曲させて、容器前方へ開孔するノズル孔下方の容器体底壁の前方側外周部へ吸上げパイプ下端を位置させ、液体が少なくなったとき、容器体を前下方へ傾けて吸上げパイプ下端を水没させ、該状態での操作でほとんどの収納液体を噴出できるよう設けている。
【０００５】
しかし容器体の高さや、吸上げパイプの長さ等にはバラツキがあり、すると噴出器下端から垂下させた吸上げパイプ下端を上記所定位置へ位置させることが困難であった。
【０００６】
本発明はそのような問題点を解決できるよう設けたものである。
【０００７】
【課題を解決するための手段】
第１の手段として噴出容器の合成樹脂製吸上げパイプにおいて、該吸上げパイプの軸線を中心とする一方半筒状部分４ａ外面へ、複数の凹溝５を穿設させ、これ等凹溝を有する側を凹面として、吸上げパイプ４をくの字状に屈曲させた。
【０００８】
第２の手段として、上記第１の手段を有すると共に上記各凹溝底部６の肉厚を、各凹溝上端間部分７の肉厚よりも薄く形成した。
【０００９】
第３の手段として、上記第１又は第２の手段を有すると共に上記複数凹溝５を有する一方半筒状部分４ａと対向する他方半筒状部分４ｂへ、複数の厚肉部９と薄肉部８とを交互にパイプ軸線方向へ連続させて形成した。
【００１０】
第４の手段として、上記第３の手段を有すると共に上記吸上げパイプの一方半筒状部分４ａに穿設した各凹溝の底部６と、他方半筒状部分４ｂへ形成した薄肉部８とを、それぞれ対向させて設けた。
【００１１】
第５の手段として一方側面を押下げ面１２とし、かつ他方側面を、複数の突部１３と凹部１４とが交互に連続する圧接面とした押付け治具１１と、上面をほぼ滑らかとした台盤１５とを設けておき、
台盤１５上へ吸上げパイプ形成用の合成樹脂製パイプ１６を載置させ、かつ該載置面と対向するパイプ部分上面へ、上記押付け治具の各突部１３先端を押付け、該押付けられたパイプ部分を台盤１５上面と突部先端との間で圧延変形させて形成して請求項１、２、３又は４記載の吸上げパイプを成形する。
【００１２】
第６の手段として容器体上部へ装着させた液体噴出器から、容器体内へ吸上げパイプを垂下させた液体噴出器において、請求項１記載の吸上げパイプ４を液体噴出器３から垂下させて、該吸上げパイプ４下端を、上方からみて液体噴出器３が有するノズル突出方向側の容器体１底壁外縁部分近傍に位置させた。
【００１３】
【発明の実施の形態】
以下図面について説明する。まず従来公知の部分について説明すると、１は容器体、２はトリガー式液体噴出器３の下部外面へ回動可能に嵌合させた装着筒で、容器体口頸部外面へ着脱自在に螺合させている。トリガー式液体噴出器の下端部内からは嵌合筒を垂下させ、該嵌合筒へ上端部を嵌合させて吸上げパイプ４を容器体内へ垂下させている。吸上げパイプ４はくの字状に屈曲されており、その下端は、上方からみて液体噴出器３が有するノズル３ａ突出方向側の容器体底壁外縁部分近傍に位置させている。
【００１４】
本発明にあっては、上記吸上げパイプ４を、該吸上げパイプの軸線を中心とする一方半筒状部分４ａ外面へ、複数の凹溝５をパイプ軸線方向ほぼ直交させて穿設させ、これ等凹溝を有する一方半筒状部分を凹面として、吸上げパイプ４をくの字状に屈曲させた。
【００１５】
上記吸上げパイプは次のようにすることで容易に形成できる。
【００１６】
図２が示すように、一方側面を押下げ面１２とし、かつ他方側面を、複数の突部１３と凹部１４とが交互に連続する圧接面とした板状押付け治具１１と、やや凹状をなす滑らかな上面を有する台盤１５とを設けておき、台盤１５上へ真直な合成樹脂製パイプ１６を載置させ、該状態からそのパイプの上面側を上記押付け治具１１の突部１３先端面で強く圧接する。上記パイプが弾性復元可能な限度を越えて強く圧接されることで突部１３先端面と台盤１５上面との間で圧縮されたパイプ部分は、図４が示すように、突部先端面が圧接した半筒状部分に凹溝５を形成することとなる。これ等凹溝はその底部６の肉厚が、凹溝上端間部分７の肉厚よりも薄くなり、又それ等凹溝と対向する他の半筒状部分は、上記凹溝底部６と対向するパイプ部分が薄肉部８となり、又凹溝上端間部分７と対向するパイプ部分が厚肉部９となる。
【００１７】
上記のように複数凹溝５を穿設した合成樹脂製パイプ１６は、図４が示すように、凹溝５を有する側の一方半筒状部分４ａが凹状となってくの字状に屈曲する。尚突部１３先端部と台盤１５との厚み巾は、上記パイプの直径よりも大としている。
【００１８】
上記突部１３押下げ時においてパイプ１６が台盤１５上で転動してその押下げが難しくなることを防止するためには、台盤１５上へ上記パイプを入れるための溝を穿設しておき、該溝内へ入れた状態でパイプを押圧することも考えられる。
【００１９】
上記パイプ一端を既述噴出器の嵌合筒へ、パイプ下端が噴出器の前下方へ突出するよう嵌合させ、そのまま装着筒２を容器体口頸部へ螺合させて合成樹脂製パイプ１６を吸上げパイプ４とする。
【００２０】
図示例において、凹溝５を有する屈曲部分は吸上げパイプ中間部の下方寄り部分に位置させているが、中間又は上方寄り部分でもよく又屈曲部分を長く設けてもよい。
【００２１】
図示例にあっては液体噴出器をトリガー式としたが、縦形ポンプ式の噴出器でもよいことは当然である。
【００２２】
【発明の効果】
本発明は既述構成とするものであり、請求項１記載のように形成することで、複数の凹溝５を有する屈曲部分は、それ等各凹溝上端の開口巾が拡がり、又狭くなる方向に対して、つまり図示例において吸上げパイプ下端が下後方へ下降し、又上前方へ上昇する方向に対して容易に変形できることとなり、よって容器体の高さ、又吸上げパイプの長さに多少のバラツキがあっても、そのパイプ下端を容器体底壁前方側の側部へ位置させることが容易である。
【００２３】
請求項２、請求項３、又請求項４のようにすることで、上記吸上げパイプの屈曲角度の弾性変形はそれぞれ更に容易となる。
【００２４】
請求項５のようにすることで、請求項１、２、３又は４記載の吸上げパイプの成形を容易に行うことが出来る。
【００２５】
請求項６のようにすることで、請求項１記載の効果と同様の効果を有する。又上方からみてノズル突出方向側と吸上げパイプ下端突出方向とを同じとし、かつ吸上げパイプ下端を底壁外縁部分近傍へ位置させたから、吸上げパイプ下端側へ容器体を傾けての操作により収納液体を使い切ることができる。
【図面の簡単な説明】
【図１】本発明吸上げパイプを有するトリガー式液体噴出容器の側面図である。
【図２】本発明吸上げパイプを成形する方法の説明図である。
【図３】真直な合成樹脂製パイプを、台盤と押付け治具との間で強く挟んだ状態を示す断面図である。
【図４】図３の状態から押付け治具を上方へ離した状態を示す断面図である。
【図５】図４が示す合成樹脂製パイプの平面図である。
【符号の説明】
４…吸上げパイプ ５…凹溝
６…底部 ７…凹溝上端間部分
８…薄肉部 ９…厚肉部
１１…押付け治具 １３…突部
１５…台盤 １６…合成樹脂製パイプ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a synthetic resin suction pipe for a trigger type or vertical pump type ejection container, a method for forming the synthetic resin suction pipe, and a liquid ejection container using the suction pipe.
[0002]
[Prior art]
A suction pipe is suspended from the lower end of the trigger type liquid ejector attached to the upper part of the container body into the container body, the liquid in the container is sucked into the liquid ejector by the trigger operation, and the sucked liquid is discharged to the tip of the injection cylinder. It is well-known that the gas is blown out from the device as disclosed in Patent Document 1 and the like.
[0003]
[Patent Document 1]
JP 2001-137749 A
[Problems to be solved by the invention]
The suction pipe of the ejector is curved in a U-shape, and the lower end of the suction pipe is located at the outer peripheral portion on the front side of the bottom wall of the container body below the nozzle hole that opens to the front of the container to reduce the amount of liquid. When the container body is tilted forward and downward, the lower end of the suction pipe is submerged, and most of the stored liquid can be ejected by the operation in this state.
[0005]
However, there are variations in the height of the container body, the length of the suction pipe, and the like, so that it is difficult to position the lower end of the suction pipe suspended from the lower end of the ejector at the predetermined position.
[0006]
The present invention is provided to solve such a problem.
[0007]
[Means for Solving the Problems]
As a first means, in a synthetic resin suction pipe of a jetting container, a plurality of grooves 5 are formed in the outer surface of one half cylindrical portion 4a around the axis of the suction pipe, and these grooves are formed. The suction pipe 4 was bent in a dogleg shape with the side having the concave surface.
[0008]
As a second means, the first means is provided, and the thickness of each groove bottom 6 is formed to be thinner than the thickness of the upper portion 7 between the grooves.
[0009]
As a third means, a plurality of thick portions 9 and a thin portion are provided to the other half-cylindrical portion 4b having the first or second means and having the plurality of concave grooves 5 and facing the one-half cylindrical portion 4a. 8 were formed alternately and continuously in the axial direction of the pipe.
[0010]
As a fourth means, the bottom part 6 of each groove formed in the one half cylindrical part 4a of the suction pipe having the third means and the thin part 8 formed in the other half cylindrical part 4b is provided. Were provided facing each other.
[0011]
Fifth means is a pressing jig 11 having one side surface as a pressing surface 12 and the other side surface as a press contact surface in which a plurality of protrusions 13 and concave portions 14 are alternately continuous, and a base having a substantially smooth upper surface. Panel 15 is provided,
A synthetic resin pipe 16 for forming a suction pipe is placed on the base plate 15, and the tip of each projection 13 of the pressing jig is pressed against the upper surface of the pipe portion opposite to the mounting surface. The suction pipe of claim 1, 2, 3 or 4 is formed by rolling and deforming the pipe portion between the upper surface of the base 15 and the tip of the projection.
[0012]
As a sixth means, in a liquid ejector in which a suction pipe is suspended from a liquid ejector mounted on an upper part of a container body into a container body, the suction pipe 4 according to claim 1 is suspended from the liquid ejector 3. The lower end of the suction pipe 4 is located near the outer edge of the bottom wall of the container body 1 on the side of the nozzle projecting direction of the liquid ejector 3 when viewed from above.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the drawings will be described. First, a conventionally known part will be described. 1 is a container body, 2 is a mounting cylinder rotatably fitted to the lower outer surface of the trigger type liquid ejector 3, and is detachably screwed to the outer surface of the mouth and neck of the container body. Let me. The fitting tube is suspended from the lower end of the trigger type liquid ejector, and the upper end portion is fitted to the fitting tube to suspend the suction pipe 4 into the container. The suction pipe 4 is bent in a U-shape, and its lower end is positioned near the outer edge of the bottom wall of the container body on the side of the nozzle 3a protruding direction of the liquid ejector 3 when viewed from above.
[0014]
In the present invention, a plurality of concave grooves 5 are formed on the outer surface of the semi-cylindrical portion 4a around the axis of the suction pipe 4 in such a manner that the grooves 5 are substantially orthogonal to the pipe axis direction. The suction pipe 4 was bent in a V-shape with the half-cylindrical portion having the concave groove as a concave surface.
[0015]
The suction pipe can be easily formed as follows.
[0016]
As shown in FIG. 2, a plate-shaped pressing jig 11 in which one side surface is a pressing surface 12 and the other side surface is a pressing contact surface in which a plurality of protrusions 13 and recesses 14 are alternately continuous, A base plate 15 having a smooth upper surface is provided, and a straight synthetic resin pipe 16 is placed on the base plate 15. From this state, the upper surface side of the pipe is brought into contact with the projection 13 of the pressing jig 11. Press firmly on the tip surface. As shown in FIG. 4, the pipe portion compressed between the distal end surface of the projection 13 and the upper surface of the base 15 due to the above-mentioned pipe being strongly pressed beyond the elastically restorable limit, as shown in FIG. The concave groove 5 is formed in the half cylindrical portion pressed. The thickness of the bottom of these concave grooves is smaller than the thickness of the upper end portion 7 between the concave grooves, and the other semi-cylindrical portion facing the concave grooves faces the concave groove bottom 6. The pipe portion that becomes the thin portion 8, and the pipe portion that faces the concave groove upper end portion 7 becomes the thick portion 9.
[0017]
As shown in FIG. 4, the synthetic resin pipe 16 in which the plurality of concave grooves 5 are perforated as described above is bent in a U-shape in which one half cylindrical portion 4a on the side having the concave grooves 5 is concave. . The thickness width of the tip of the projection 13 and the base plate 15 is larger than the diameter of the pipe.
[0018]
In order to prevent the pipe 16 from rolling on the base plate 15 when the protruding portion 13 is pressed down and the pressing down becomes difficult, a groove for inserting the pipe onto the base plate 15 is formed. In addition, it is conceivable to press the pipe in a state of being inserted into the groove.
[0019]
The one end of the pipe is fitted to the fitting tube of the ejector described above so that the lower end of the pipe projects forward and downward of the ejector, and the mounting tube 2 is screwed into the mouth and neck of the container body as it is to make a synthetic resin pipe 16. Is the suction pipe 4.
[0020]
In the illustrated example, the bent portion having the concave groove 5 is located at the lower portion of the suction pipe middle portion, but may be at the middle or upper portion, or the bent portion may be long.
[0021]
In the illustrated example, the liquid ejector is a trigger type, but it is a matter of course that a vertical pump type ejector may be used.
[0022]
【The invention's effect】
According to the present invention, the bent portion having the plurality of concave grooves 5 has the opening width at the upper end of each of the concave grooves widened and narrowed by being formed as described in claim 1. Direction, that is, the lower end of the suction pipe in the illustrated example can be easily deformed in the direction of lowering and lowering, and also in the direction of rising upward and forward, so that the height of the container body and the length of the suction pipe It is easy to locate the lower end of the pipe to the front side of the bottom wall of the container even if there is some variation.
[0023]
According to the second, third and fourth aspects, the elastic deformation of the bending angle of the suction pipe is further facilitated.
[0024]
According to the fifth aspect, the suction pipe according to the first, second, third or fourth aspect can be easily formed.
[0025]
According to the sixth aspect, the same effect as that of the first aspect is obtained. Also, since the nozzle projecting direction side and the suction pipe lower end projecting direction are the same when viewed from above, and the lower end of the suction pipe is located near the outer edge of the bottom wall, the container body is tilted toward the lower end of the suction pipe by an operation. The stored liquid can be used up.
[Brief description of the drawings]
FIG. 1 is a side view of a trigger type liquid ejection container having a suction pipe according to the present invention.
FIG. 2 is an explanatory view of a method of forming a suction pipe according to the present invention.
FIG. 3 is a cross-sectional view showing a state in which a straight synthetic resin pipe is strongly sandwiched between a base plate and a pressing jig.
FIG. 4 is a cross-sectional view showing a state where a pressing jig is separated upward from the state of FIG. 3;
FIG. 5 is a plan view of the synthetic resin pipe shown in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 4 ... Suction pipe 5 ... Concave groove 6 ... Bottom part 7 ... Part between upper ends of concave grooves 8 ... Thin part 9 ... Thick part 11 ... Pressing jig 13 ... Protrusion 15 ... Base plate 16 ... Synthetic resin pipe

Claims (6)

噴出容器の合成樹脂製吸上げパイプにおいて、該吸上げパイプの軸線を中心とする一方半筒状部分４ａ外面へ、複数の凹溝５を穿設させ、これ等凹溝を有する側を凹面として、吸上げパイプ４をくの字状に屈曲させた
ことを特徴とする、噴出容器の合成樹脂製吸上げパイプ。In the synthetic resin suction pipe of the ejection container, a plurality of grooves 5 are formed in the outer surface of the half-cylindrical portion 4a around the axis of the suction pipe, and the side having these grooves is concave. A suction pipe made of synthetic resin for a jetting container, wherein the suction pipe 4 is bent in a U-shape. 上記各凹溝底部６の肉厚を、各凹溝上端間部分７の肉厚よりも薄く形成した
ことを特徴とする、請求項１記載の噴出容器の合成樹脂製吸上げパイプ。The synthetic resin suction pipe according to claim 1, wherein the thickness of each groove bottom (6) is smaller than the thickness of each groove upper end portion (7). 上記複数凹溝５を有する一方半筒状部分４ａと対向する他方半筒状部分４ｂへ、複数の厚肉部９と薄肉部８とを交互にパイプ軸線方向へ連続させて形成した
ことを特徴とする、請求項１又は２記載の液体噴出容器の吸上げパイプ。A plurality of thick portions 9 and thin portions 8 are alternately formed in the pipe axis direction on the other half-cylindrical portion 4b having the plurality of concave grooves 5 and facing the other half-cylindrical portion 4a. The suction pipe of the liquid ejection container according to claim 1. 上記吸上げパイプの一方半筒状部分４ａに穿設した各凹溝の底部６と、他方半筒状部分４ｂへ形成した薄肉部８とを、それぞれ対向させて設けた
ことを特徴とする、請求項３記載の液体噴出容器の吸上げパイプ。A bottom portion 6 of each groove formed in the one half cylindrical portion 4a of the suction pipe and a thin portion 8 formed in the other half cylindrical portion 4b are provided to face each other. A suction pipe for the liquid ejection container according to claim 3. 一方側面を押下げ面１２とし、かつ他方側面を、複数の突部１３と凹部１４とが交互に連続する圧接面とした押付け治具１１と、上面をほぼ滑らかとした台盤１５とを設けておき、
台盤１５上へ吸上げパイプ形成用の合成樹脂製パイプ１６を載置させ、かつ該載置面と対向するパイプ部分上面へ、上記押付け治具の各突部１３先端を押付け、該押付けられたパイプ部分を台盤１５上面と突部先端との間で圧延変形させて形成する
ことを特徴とする、請求項１、２、３又は４記載の合成樹脂製吸上げパイプの成形方法。A pressing jig 11 in which one side surface is a pressing surface 12 and the other side surface is a press contact surface in which a plurality of protrusions 13 and concave portions 14 are alternately continuous, and a base plate 15 having a substantially smooth upper surface are provided. In addition,
A synthetic resin pipe 16 for forming a suction pipe is placed on the base plate 15, and the tip of each projection 13 of the pressing jig is pressed against the upper surface of the pipe portion opposite to the mounting surface. 5. The method of molding a synthetic resin suction pipe according to claim 1, wherein the pipe portion is formed by rolling deformation between the upper surface of the base plate 15 and the tip of the projection. 容器体上部へ装着させた液体噴出器から、容器体内へ吸上げパイプを垂下させた液体噴出器において、請求項１記載の吸上げパイプ４を液体噴出器３から垂下させて、該吸上げパイプ４下端を、上方からみて液体噴出器３が有するノズル突出方向側の容器体１底壁外縁部分近傍に位置させた
ことを特徴とする液体噴出容器。2. A liquid ejector in which a suction pipe is suspended from a liquid ejector mounted on an upper portion of a container body into a container body, wherein the suction pipe 4 according to claim 1 is suspended from the liquid ejector 3 and said suction pipe. (4) A liquid ejection container characterized in that the lower end is located near the outer edge of the bottom wall of the container body 1 on the side of the nozzle ejecting direction of the liquid ejection device 3 when viewed from above.
JP2003055036A 2003-02-28 2003-02-28 Synthetic resin suction pipe for ejection container, molding method of the synthetic resin suction pipe, and liquid ejection container using the suction pipe Expired - Fee Related JP4145682B2 (en)

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