JP2009012789A - Wide-mouthed container and oriented rod - Google Patents

Wide-mouthed container and oriented rod Download PDF

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Publication number
JP2009012789A
JP2009012789A JP2007173532A JP2007173532A JP2009012789A JP 2009012789 A JP2009012789 A JP 2009012789A JP 2007173532 A JP2007173532 A JP 2007173532A JP 2007173532 A JP2007173532 A JP 2007173532A JP 2009012789 A JP2009012789 A JP 2009012789A
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container
wide
rod
bottom wall
tip
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JP5035676B2 (en
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Ko Sugisaki
巧 杉崎
Michihiro Kono
道裕 河野
Masaaki Sasaki
正昭 佐々木
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Yoshino Kogyosho Co Ltd
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Yoshino Kogyosho Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/08—Biaxial stretching during blow-moulding
    • B29C49/10—Biaxial stretching during blow-moulding using mechanical means for prestretching
    • B29C49/12—Stretching rods
    • B29C49/121—Stretching rod configuration, e.g. geometry; Stretching rod material
    • B29C49/1215—Geometry of the stretching rod, e.g. specific stretching rod end shape

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  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To favorably achieve the rubbing-off of a content by a finger or the like by preventing the rotation and displacement of the content which is prone to be solidified to a wide-mouthed container. <P>SOLUTION: In the wide-mouthed container formed of a synthetic resin which has a low height and is bi-axially blow-molded, a plurality of hooking recessed parts 7 for locking and holding the filling content which is stored and prone to be solidified so as not to be turnable and displaced are aligned and formed at the central part of the approximately flat inner face of a bottom wall 6 whose outer face is smooth, and rotation and displacement are prevented by locking the content to the hooking recessed parts 7. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、比較的固化し易い内容物を収容する２軸延伸ブロー成形された合成樹脂製広口容器と、この広口容器の成形に使用される延伸ロッドに関するものである。   The present invention relates to a biaxial stretch blow-molded synthetic resin wide-mouth container that contains a content that is relatively easy to solidify, and a stretch rod used for molding the wide-mouth container.

２軸延伸ブロー成形された合成樹脂製広口容器、およびこの広口容器を成形する２軸延伸ブロー成形装置を開示する従来技術として特開平１１−１５７５２４号公報（特許文献１）がある。
特開２０００−２４６７８９号公報 Japanese Patent Application Laid-Open No. 11-157524 (Patent Document 1) discloses a conventional technique for disclosing a biaxial stretch blow molded synthetic resin wide-mouth container and a biaxial stretch blow molding apparatus for molding the wide-mouth container.
JP 2000-246789 A

この特許文献１に示された従来技術から明らかなように、２軸延伸ブロー成形された壜体状の合成樹脂製広口容器は、短円筒状の口部の下に、高さの低い円筒状の胴部を連設し、この胴部の下端に底部を連設して構成され、底部は、主体部分である底壁の外面である下面の周端部に脚壁を膨出状に設けて構成され、底壁の上面である内面は、わずかに球弧状に盛り上がった平滑面となっている。   As apparent from the prior art disclosed in Patent Document 1, a biaxial stretch blow molded box-shaped synthetic resin wide-mouthed container has a cylindrical shape with a low height under a short cylindrical mouth portion. The bottom part of the bottom part is connected to the bottom part, and the bottom part is provided with a leg wall in a bulging shape at the peripheral end part of the lower surface, which is the outer surface of the bottom wall as the main part. The inner surface that is the upper surface of the bottom wall is a smooth surface that is slightly raised in a spherical arc shape.

そして、この広口容器は、広口であることを利点として、各種のクリーム状内容物および固化し易い内容物の収納容器として、広く利用されている。   And this wide-mouthed container is widely used as a storage container for various cream-like contents and easily solidified contents, with the advantage of being a wide-mouthed container.

しかしながら、上記した従来技術の広口容器にあっては、装飾性に欠けると共に、固化し易い内容物を収容した場合、水分蒸発とか溶剤揮散等により内容物がわずかに固化収縮すると、広口容器の内周面と内容物との間の摺動抵抗力が低下し、このため内容物を指先等で擦り取る際に、擦り取り力の作用により、固化収縮した内容物が、広口容器に対して不正に回動変位してしまい、内容物の擦り取り動作が不良となる、と云う問題があった。   However, in the above-described prior art wide-mouth container, when the contents which are not decorative and easily solidify are contained, the contents of the wide-mouth container are slightly solidified and contracted due to water evaporation or solvent evaporation. The sliding resistance between the peripheral surface and the contents decreases, so when the contents are scraped off with a fingertip etc., the contents that have solidified and contracted due to the action of the scraping force are illegal against the wide-mouthed container. There is a problem that the content is scraped off and the contents are scraped off.

これは、広口容器内に充填収容された内容物の固化収縮変形が、縮径変形を主体として発生するためで、固化収縮した内容物と底壁内面との間の接触抵抗は、内容物の重量の作用により、殆ど低下することがないのに比べ、固化収縮した内容物と胴部内周面との間の接触抵抗は、縮径変形することにより、大幅に低下するからである。   This is because solidification shrinkage deformation of the contents filled and accommodated in the wide-mouthed container mainly occurs due to shrinkage deformation, and the contact resistance between the solidified shrinkage contents and the inner surface of the bottom wall is This is because the contact resistance between the solidified and contracted contents and the inner peripheral surface of the body portion is greatly reduced by the diameter-reducing deformation, as compared with the case where it hardly decreases due to the effect of the weight.

そこで、本発明は、上記した従来技術における問題点を解消すべく創案されたもので、広口容器に対する固化し易い内容物の回動変位を阻止することを技術的課題とし、もって指先等による内容物の擦り取りを、良好に達成できるようにすることを目的とする。   Therefore, the present invention was devised to solve the above-described problems in the prior art, and it is a technical problem to prevent the rotational displacement of the content that is easily solidified with respect to the wide-mouthed container. The object is to make it possible to achieve good scraping of objects.

本発明による広口容器は、２軸延伸ブロー成形された合成樹脂成形品であり、高さの低い円筒状の胴部を有すると共に、底部の主体部である底壁の内面および外面は、略平坦面となっている。   The wide-mouth container according to the present invention is a synthetic resin molded product that is biaxially stretched and blow-molded, and has a cylindrical body portion with a low height, and the inner surface and outer surface of the bottom wall that is the main portion of the bottom portion are substantially flat. It is a surface.

底壁の内面には、充填収容した固化し易い内容物を、回動変位不能に係止保持する複数の係止凹部を、配列形成している。   On the inner surface of the bottom wall, a plurality of locking recesses for locking and holding the filled and contained contents that are easy to solidify are arranged so as not to be rotationally displaced.

固化し易い内容物は、流動性の高い状態で容器内に注入充填されるが、充填後の冷却等による定常化により、容器の内表面を型面として固化する。   The contents that are easily solidified are poured and filled into the container in a highly fluid state, but solidify by using the inside surface of the container as a mold surface by regularization such as cooling after filling.

このため、底壁内面に接触している、固化した内容物の下面には、底壁内面に陥没形成された係止凹部に嵌合する凸部が一体に成形される。   For this reason, on the lower surface of the solidified content that is in contact with the inner surface of the bottom wall, a convex portion that fits into a locking concave portion that is recessed and formed on the inner surface of the bottom wall is integrally formed.

複数の係止凹部は、底壁内面に配列形成されているので、この係止凹部に嵌合している内容物の凸部は、内容物が容器内で回転変位しようとする際に、係止凹部に対して回動方向から係止することになり、これにより固化し易い内容物は、容器内に回動変位不能に収納保持されることになる。   Since the plurality of locking recesses are arranged on the inner surface of the bottom wall, the convex portions of the contents fitted in the locking recesses are engaged when the contents are about to be rotationally displaced in the container. The contents that are easily solidified are locked and retained in the container so as not to be rotationally displaced.

また、この固化し易い内容物の容器に対する回動変位不能な収容組付きは、固化し易い内容物下面と、容器の底壁内面との間で達成されるものであるので、内容物が径時によりわずかに収縮変形しても、この係止凹部と凸部との係止状態は、内容物の重さの作用により、解除されることはなく、容器に対する内容物の回動変位不能な収容組付きは、安定して維持される。   In addition, the container assembly of the easily solidified contents with respect to the container that cannot be displaced is achieved between the bottom surface of the easily solidified contents and the inner surface of the bottom wall of the container. Even if it is slightly contracted and deformed from time to time, the locking state between the locking concave portion and the convex portion is not released by the action of the weight of the contents, and the contents cannot be rotated and displaced with respect to the container. The housing assembly is stably maintained.

本発明の別の構成は、係止凹部が形成される底壁内面の中央部分の最大範囲を、口部の口径の８０％の径寸法範囲とした、ことにある。   Another configuration of the present invention resides in that the maximum range of the central portion of the inner surface of the bottom wall where the locking recess is formed is a diameter size range of 80% of the diameter of the mouth portion.

係止凹部が形成される底壁内面の中央部分の最大範囲を、口部の口径の８０％の径寸法範囲としたものにあっては、係止凹部が形成される底壁内面の中央部分の範囲が、口部の口径の８０％を越えると、容器の２軸延伸ブロー成形の成形性の低下、２軸延伸ブロー成形に使用される各構成部分の機械部品の肉厚に対する制限の厳格化、延伸ロッドとプリフォームとのクリアランスがきわめて小さくなる等の不都合を生じることになるが、この不都合の発生を未然に防止する。   If the maximum range of the central portion of the inner surface of the bottom wall where the locking recess is formed is a diameter range of 80% of the diameter of the mouth portion, the central portion of the inner surface of the bottom wall where the locking recess is formed If the range exceeds 80% of the diameter of the mouth, the moldability of the biaxial stretch blow molding of the container is lowered, and the restrictions on the thickness of the machine parts of each component used in the biaxial stretch blow molding are severe. Inconveniences such as the reduction of the clearance between the stretching rod and the preform become extremely small, but this inconvenience is prevented in advance.

また、本発明の別の構成は、各係止凹部の平面形状を、花弁状として、放射状に配列した、ことにある。   Another configuration of the present invention resides in that the planar shapes of the respective locking recesses are arranged radially as petals.

各係止凹部の平面形状を、花弁状として放射状に配列したものにあっては、複数の係止凹部の集まりが、一輪の花に似た模様を形成し、内容物さらには容器が透明である場合には、この花に似た模様が装飾模様として現出される。   In the case where the planar shape of each locking recess is arranged radially as a petal shape, a collection of a plurality of locking recesses forms a pattern resembling a single flower, and the contents and the container are transparent. In some cases, a pattern resembling this flower appears as a decorative pattern.

本発明の延伸ロッドは、合成樹脂製広口容器を２軸延伸ブロー成形する際に使用される延伸ロッドであって、ロッド本体の先端に、平板状の本体部を同軸心状に設け、この本体部の先端面に複数の凸型部を配列形成して構成したものである。   The stretching rod of the present invention is a stretching rod used when biaxial stretching blow molding of a synthetic resin wide-mouthed container, and a flat body portion is provided coaxially at the tip of the rod body. A plurality of convex portions are arranged and formed on the tip surface of the portion.

延伸ロッドの先端面は、プリフォームから２軸延伸ブロー成形された容器の底壁内面の中央部分の成形型面を提供する部分であるが、この延伸ロッドの先端面を形成する本体部の先端面に、複数の凸型部を配列形成したので、延伸ロッドは、その延伸動作により、容器の底壁内面の中央部分に、複数の係止凹部を配列形成することになる。   The distal end surface of the stretching rod is a portion that provides a molding die surface of the center portion of the inner surface of the bottom wall of the container biaxially stretch blow molded from the preform, and the distal end of the main body that forms the distal end surface of the stretching rod Since the plurality of convex portions are arranged on the surface, the extending rod forms a plurality of locking recesses in the central portion of the inner surface of the bottom wall of the container by the extending operation.

延伸ロッドの本体部は、ロッド本体の径寸法に制限されることなく、凸型部の配置範囲を設定することが可能となる。   The main body portion of the stretching rod is not limited by the diameter of the rod main body, and the arrangement range of the convex portion can be set.

延伸ロッドの別の構成は、本体部の後端面中央に組付き軸部を起立設して先端治具を構成し、この先端治具をロッド本体に対して、組付き軸部のロッド本体先端部への嵌着により、着脱自在に組付けた、ことにある。   Another configuration of the stretching rod is to construct a tip jig by erecting an assembled shaft part at the center of the rear end surface of the main body part, and this tip jig is connected to the rod body with the rod body tip of the assembled shaft part. It is that it was assembled detachably by fitting to the part.

本体部を有する先端治具を、ロッド本体先端部に着脱自在に組付け可能とした構成にあっては、得ようとする係止凹部の形状、大きさ、配列形態、配置範囲等の変更を、ロッド本体に対する先端治具を交換で達成する。   In the configuration in which the tip jig having the main body portion can be detachably assembled to the rod main body tip portion, the shape, size, arrangement form, arrangement range, etc. of the locking recess to be obtained can be changed. , Achieve by exchanging the tip jig for the rod body.

本発明は、上記した構成となっているので、以下に示す効果を奏する。
本発明の容器にあっては、容器と内容物の少なくとも一方が透明もしくは半透明である場合とか、固化し易い内容物の消費が進んで、係止凹部が透視される状態となると、係止凹部が模様として現出し、面白みのある装飾効果を得ることができ、また底壁内面の中央部分に形成された係止凹部に、内容物の凸部が嵌合することにより、内容物を回動変位不能に収容保持することができ、これにより内容物を指先等で擦り取る際に、内容物が不都合に回動変位して、内容物の擦り取りが不良となることがなく、安定して良好な内容物の擦り取り動作を得ることができる。 Since the present invention has the above-described configuration, the following effects can be obtained.
In the container of the present invention, when at least one of the container and the contents is transparent or translucent, or when consumption of the contents that are easily solidified progresses and the locking recess is seen through, The concave portion appears as a pattern, and an interesting decorative effect can be obtained. The convex portion of the content fits into the locking concave portion formed in the central portion of the inner surface of the bottom wall, so that the content can be rotated. It can be accommodated and held so that it cannot be displaced, so that when the contents are scraped off with a fingertip or the like, the contents are undesirably rotated and displaced, and the scraping of the contents does not become defective and is stable. Therefore, it is possible to obtain a good content scraping operation.

また、内容物の容器に対する回動変位不能な収容組付きは、内容物の径時収縮変形に関わりなく、安定して維持されるので、内容物をほぼ使い切るまで、良好な使用状態を得ることができる。   In addition, a container with a container that cannot be rotated and displaced with respect to the container of the contents is stably maintained regardless of the shrinkage deformation of the contents in diameter, so that a good use state can be obtained until the contents are almost used up. Can do.

係止凹部が形成される底壁内面の中央部分の最大範囲を、口部の口径の８０％の径寸法範囲としたものにあっては、容器の２軸延伸ブロー成形の成形性の低下、２軸延伸ブロー成形に使用される各構成部分の機械部品の肉厚に対する制限の厳格化、延伸ロッドとプリフォームとのクリアランスがきわめて小さくなる等の不都合の発生を未然に防止した状態で、有効な係止凹部を、安定して形成することができる。   In the case where the maximum range of the central portion of the inner surface of the bottom wall where the locking recess is formed is a diameter size range of 80% of the diameter of the mouth portion, the moldability of the biaxial stretch blow molding of the container is reduced, Effective with strict restrictions on the thickness of machine parts in each component used for biaxial stretch blow molding, and prevention of inconveniences such as extremely small clearance between stretch rod and preform. Such a locking recess can be formed stably.

各係止凹部の平面形状を、花弁状にして放射状に配列したものにあっては、複数の係止凹部の集まりが、一輪の花に似た模様を形成し、内容物さらには容器が透明もしくは半透明である場合には、この花に似た模様が装飾模様として現出されるので、特有で効果の大きい装飾効果を得ることができる。   In the case where the planar shape of each locking recess is petal-like and arranged radially, a collection of locking recesses forms a pattern resembling a single flower, and the contents and the container are transparent Alternatively, if it is translucent, a pattern resembling this flower appears as a decorative pattern, so that a unique and highly effective decorative effect can be obtained.

本発明の延伸ロッドは、先端面に複数の凸型部を配列形成したので、延伸動作により、容器の底壁内面の中央部分に、複数の係止凹部を配列形成することになるので、係止凹部成形のための特別な成形操作を要することがなく、簡単にかつ確実に係止凹部を成形することができる。   In the stretching rod of the present invention, since a plurality of convex portions are arranged on the front end surface, a plurality of locking recesses are arranged on the central portion of the inner surface of the bottom wall of the container by the stretching operation. The locking recess can be easily and reliably formed without requiring a special molding operation for forming the stop recess.

また、延伸ロッドの先端面は、ロッド本体の先端に設けた本体部が形成するので、ロッド本体の径寸法に束縛されることなく、その大きさを設定することができ、これにより係止凹部の形成範囲を、所望する大きさに設定することが、無理なく容易に達成することができる。   Further, the front end surface of the extending rod is formed by the main body provided at the front end of the rod main body, so that the size can be set without being constrained by the diameter of the rod main body. It can be easily and easily achieved to set the formation range of the desired size.

延伸ロッドにおいて、本体部を有する先端治具を、ロッド本体先端部に着脱自在に組付け可能とした構成にあっては、得ようとする係止凹部の形状、大きさ、配列形態、配置範囲等の変更を、ロッド本体に対する先端治具を交換で達成することができるので、係止凹部の変更が容易であると共に、この係止凹部の変更による経費の増大を、殆ど生じさせることがない。   In the configuration where the tip jig having the main body portion can be removably assembled to the rod main body tip portion in the extending rod, the shape, size, arrangement form, and arrangement range of the locking recess to be obtained Can be achieved by exchanging the tip jig with respect to the rod body, so that it is easy to change the locking recess, and there is almost no increase in costs due to the change of the locking recess. .

以下、本発明の実施形態例を、図面を参照しながら説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１は、ポリエチレンテレフタレート樹脂等による２軸延伸ブロー成形品としての広口容器である容器１の全体縦断正面図で、容器１は、外周面に螺条を刻設した短円筒状の口部２の下端に、幅の狭い外鍔状の肩部３を介して、高さの低い円筒状の胴部４を垂下連設し、この胴部４の下端に底部５を連設して構成されている。   FIG. 1 is an overall longitudinal front view of a container 1 which is a wide-mouthed container as a biaxially stretched blow-molded product made of polyethylene terephthalate resin or the like. The container 1 has a short cylindrical mouth part 2 in which a thread is engraved on the outer peripheral surface. A cylindrical body 4 having a low height is suspended from the lower end of the body 4 via a narrow outer shoulder 3 and a bottom 5 is connected to the lower end of the body 4. ing.

底部５は、略平円板状の底壁６の周端縁に、胴部４との連設部分である脚壁８を、下側に膨出させた形態で連設して構成され、外面を略平坦面とした底壁６の内面中央部分には、複数の陥没穴状の係止凹部７が放射状に配列形成されている。   The bottom portion 5 is configured by continuously providing a leg wall 8 that is a continuous portion with the body portion 4 in a form in which the bottom wall 5 bulges downward on the peripheral edge of the substantially flat disk-shaped bottom wall 6. A plurality of recessed recess-like locking recesses 7 are radially arranged in the central portion of the inner surface of the bottom wall 6 whose outer surface is a substantially flat surface.

図２は、係止凹部７の第一の構成例を示す、容器１の全体平面図で、細長四角穴状をした６個の係止凹部７を、等中心角毎に放射状に配列しており、この係止凹部７が形成されている底壁６の内面中央部の範囲は、口部２の口径の約６４％の径寸法範囲となっている。   FIG. 2 is an overall plan view of the container 1 showing a first configuration example of the locking recesses 7, in which six locking recesses 7 each having a shape of an elongated square hole are arranged radially at equal central angles. The range of the central portion of the inner surface of the bottom wall 6 where the locking recess 7 is formed is a diameter size range of about 64% of the diameter of the mouth portion 2.

図３は、係止凹部７の第二の構成例を示す、容器１の全体平面図で、開口形状が細長花弁状をした１２個の係止凹部７を、等中心角毎に放射状に配列して、一輪の花状の形態を現出させており、この係止凹部７が形成されている底壁６の内面中央部の範囲は、口部２の口径の約８０％の径寸法範囲となっている。   FIG. 3 is an overall plan view of the container 1 showing a second configuration example of the locking recess 7, and 12 locking recesses 7 whose openings are in the shape of elongated petals are arranged radially at equal central angles. Thus, a flower-like form of a single ring appears, and the range of the central portion of the inner surface of the bottom wall 6 in which the locking recess 7 is formed is a diameter size range of about 80% of the diameter of the mouth 2. It has become.

図２の構造例の場合、係止凹部７は、内容物の回動変位を阻止することだけを目的として構成されているのに対し、図３の構造例の場合は、係止凹部７は、内容物の回動変位を阻止することは当然として、この係止凹部７の集まりが、装飾を目的とする模様を現出することができるものとなっている。   In the case of the structural example of FIG. 2, the locking recess 7 is configured only for the purpose of preventing the rotational displacement of the contents, whereas in the case of the structural example of FIG. As a matter of course, the rotational displacement of the contents is prevented, and the gathering of the locking recesses 7 can reveal a pattern intended for decoration.

それゆえ、図３の構造例の場合は、容器１全体と、収容される内容物の一方または両方を透明若しくは半透明とすると、係止凹部７の集まりが現出する模様は、立体感のあるものとなる。   Therefore, in the case of the structural example of FIG. 3, when the entire container 1 and one or both of the contents to be contained are made transparent or semi-transparent, the pattern in which the locking recesses 7 appear appears three-dimensionally. There will be something.

図４と図５は、容器１の２軸延伸ブロー成形動作を説明するもので、図４に示すように、所望温度に加熱された深皿状をしたプリフォーム１ａを、２軸延伸ブロー成形金型装置（図示省略）に、その口筒部２ａで組付けた状態で、延伸ロッド９を前進させながら、図５に示すように、容器１に延伸ブロー成形する。   4 and 5 illustrate the biaxial stretch blow molding operation of the container 1, and as shown in FIG. 4, a deep dish-shaped preform 1a heated to a desired temperature is biaxial stretch blow molded. As shown in FIG. 5, stretch blow molding is performed on the container 1 while the stretching rod 9 is advanced in a state where it is assembled to the mold apparatus (not shown) with the mouth tube portion 2 a.

このプリフォーム１ａから容器１への延伸ブロー成形に際して、プリフォーム１ａの胴筒部４ａの下端に連設された底壁部６ａには、前進してきた延伸ロッド９の先端面が真っ先に押圧接触するので、この底壁部６ａは殆ど延伸変形することなく、底壁６の中央部分に成形される。   At the time of stretch blow molding from the preform 1a to the container 1, the front end surface of the stretch rod 9 that has advanced is first pressed into contact with the bottom wall portion 6a that is connected to the lower end of the barrel portion 4a of the preform 1a. Therefore, the bottom wall portion 6a is formed at the center portion of the bottom wall 6 with almost no deformation.

そして、延伸ロッド９の先端面には、係止凹部７を成形するための凸型部１３が設けられているので、プリフォーム１ａが容器１に２軸延伸ブロー成形された図５図示状態では、底壁６の内面中央部分には、係止凹部７が陥没成形されていりことになる。   And since the convex part 13 for shape | molding the latching recessed part 7 is provided in the front end surface of the extending | stretching rod 9, in the state shown in FIG. In the center portion of the inner surface of the bottom wall 6, the locking recess 7 is depressed and formed.

この図４および図５の図示構成例の場合、延伸ロッド９は、通常の延伸ロッドのロッド本体と同じであるロッド本体１０と、このロッド本体１０の先端に、組付けピン１５により着脱自在に組み付けられる先端治具１１とから構成されている。   4 and 5, the extending rod 9 is detachably attached to the rod body 10 which is the same as the rod body of a normal extending rod, and to the tip of the rod body 10 by an assembly pin 15. It is comprised from the front-end | tip jig | tool 11 assembled | attached.

先端治具１１は、先端面が、延伸ロッド９の先端面を形成する平円板状の本体部１２と、この本体部１２の後端面の中央に起立設され、ロッド本体１０の先端面に嵌合穴部に嵌入して、組付けピン１５等の着脱手段によりロッド本体１０に組付けられる組付き軸部１４とから構成されており、本体部１２の先端面には、係止凹部７を成形する複数の凸型部１３が、放射状に配列突設されている。   The tip jig 11 is erected at the center of the flat disc-shaped main body portion 12 that forms the front end surface of the extending rod 9 and the rear end surface of the main body portion 12. It is comprised from the assembly | attachment shaft part 14 which is inserted in a fitting hole part, and is assembled | attached to the rod main body 10 by attaching / detaching means, such as the assembly | attachment pin 15, etc. A plurality of convex mold portions 13 are formed so as to project radially.

本体部１２は、ロッド本体１０よりも大きい径寸法を有しているのが良く、延伸ロッド９の駆動部分における構造的な寸法規制、すなわちロッド本体１０の径寸法規制に関わりなく、凸型部１３の形成範囲を所望する大きさとすることができ、これにより係止凹部７の形成範囲の径寸法を、最大で、口部２の口径の８０％まで大きくすることができる。   The main body 12 preferably has a larger diameter than the rod main body 10, and the convex portion regardless of the structural dimensional regulation in the driving portion of the extending rod 9, that is, the diameter dimensional regulation of the rod main body 10. The formation range of 13 can be set to a desired size, whereby the diameter of the formation range of the locking recess 7 can be increased up to 80% of the diameter of the mouth portion 2 at the maximum.

この先端治具１１は、本体部１２の先端面に突設した凸型部１３の形状、大きさ、配列形態等を異なるものとした複数が予め用意されており、要求され係止凹部７に対応した凸型部１３を有する先端治具１１をロッド本体１０に組付けて、容器１を２軸延伸ブロー成形する。   A plurality of tip jigs 11 having different shapes, sizes, arrangements and the like of the protruding portion 13 projecting from the tip surface of the main body portion 12 are prepared in advance. A tip jig 11 having a corresponding convex portion 13 is assembled to the rod body 10 and the container 1 is biaxially stretch blow molded.

容器の一実施形態例を示す、全体縦断正面図である。It is a whole longitudinal front view which shows one embodiment of a container. 係止凹部の第一構造例を示す、容器の全体平面図である。It is the whole container top view which shows the 1st structural example of a latching recessed part. 係止凹部の第二構造例を示す、容器の全体平面図である。It is the whole container top view which shows the 2nd structural example of a latching recessed part. 容器の２軸延伸ブロー成形開始時の、説明用断面図である。It is sectional drawing for description at the time of the biaxial stretch blow molding start of a container. 容器の２軸延伸ブロー成形完了時の、説明用断面図である。It is sectional drawing for description at the time of biaxial stretch blow molding completion of a container.

符号の説明Explanation of symbols

１ ；容器
２ ；口部
３ ；肩部
４ ；胴部
５ ；底部
６ ；底壁
７ ；係止凹部
８ ；脚壁
９ ；延伸ロッド
１０；ロッド本体
１１；先端治具
１２；本体部
１３；凸型部
１４；組付き軸部
１５；組付きピン
１ａ；プリフォーム
２ａ；口筒部
４ａ；胴筒部
６ａ；底壁部 DESCRIPTION OF SYMBOLS 1; Container 2; Mouth part 3; Shoulder part 4; Trunk part 5; Bottom part 6; Bottom wall 7; Locking recessed part 8; Leg wall 9; Convex portion 14; Assembly shaft portion 15; Assembly pin 1a; Preform 2a; Mouth tube portion 4a;

Claims (5)

高さの低い円筒状の胴部を有する２軸延伸ブロー成形された合成樹脂製広口容器であって、底壁の下面を平滑面とし、充填収容した内容物を、回動変位不能に係止保持する複数の係止凹部を、底壁の略平坦な内面に配列形成して成る広口容器。 A biaxial stretch blow-molded synthetic resin wide-mouthed container with a low-profile cylindrical body, with the bottom wall of the bottom wall being a smooth surface that locks the filled contents in an unrotatable manner. A wide-mouth container formed by arranging a plurality of retaining recesses to be held on a substantially flat inner surface of a bottom wall. 係止凹部が形成される底壁内面の中央部分の最大範囲を、口部の口径の８０％の径寸法範囲とした請求項１記載の広口壜体。 The wide-mouthed housing according to claim 1, wherein the maximum range of the central portion of the inner surface of the bottom wall where the locking recess is formed is a diameter size range of 80% of the diameter of the mouth portion. 各係止凹部を放射状に配列すると共に、平面形状を、花弁状とした請求項１または２記載の広口容器。 The wide-mouthed container according to claim 1 or 2, wherein the locking recesses are arranged radially and the planar shape is a petal shape. 合成樹脂製広口容器を２軸延伸ブロー成形する際に使用される延伸ロッドであって、ロッド本体の先端に、平板状の本体部を同軸心状に設け、該本体部の先端面に複数の凸型部を配列形成した延伸ロッド。 A stretch rod used for biaxial stretch blow molding of a synthetic resin wide-mouth container, wherein a flat plate-like body portion is provided coaxially at the tip of a rod body, and a plurality of pieces are provided on the tip surface of the body portion. Stretched rod with convex parts arranged. 本体部の後端面中央に組付き軸部を起立設して先端治具を構成し、該先端治具をロッド本体に対して、前記組付き軸部のロッド本体先端部への嵌着により、着脱自在に組付けた請求項４記載の延伸ロッド。 The assembled shaft portion is erected at the center of the rear end surface of the main body portion to constitute a tip jig, and the distal end jig is attached to the rod body tip portion of the assembled shaft portion to the rod body, The extending | stretching rod of Claim 4 assembled | attached so that attachment or detachment was possible.
JP2007173532A 2007-06-29 2007-06-29 Wide mouth container and stretching rod Active JP5035676B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3022824A1 (en) * 2014-11-13 2016-01-01 Sidel Participations STRETCH ROD FOR A STRETCH MOLDING DEVICE FOR BLOWING CONTAINERS, ESPECIALLY BOTTLES OF PLASTIC MATERIAL
WO2022196658A1 (en) * 2021-03-15 2022-09-22 日精エー・エス・ビー機械株式会社 Resin container manufacturing method and manufacturing apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0353805U (en) * 1989-09-29 1991-05-24
JP2000246789A (en) * 1998-12-28 2000-09-12 Aoki Technical Laboratory Inc Bottom section molding of wide mouth container by draw- blow molding
JP2003001697A (en) * 2001-06-27 2003-01-08 Tachibana Yoki Kk Method for manufacturing injection blow-molded container and injection blow-molded container
JP2004161366A (en) * 2002-11-11 2004-06-10 Aska Company Container having binding performance for gel food
JP2006282260A (en) * 2005-04-04 2006-10-19 Naris Cosmetics Co Ltd Cosmetic container

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0353805U (en) * 1989-09-29 1991-05-24
JP2000246789A (en) * 1998-12-28 2000-09-12 Aoki Technical Laboratory Inc Bottom section molding of wide mouth container by draw- blow molding
JP2003001697A (en) * 2001-06-27 2003-01-08 Tachibana Yoki Kk Method for manufacturing injection blow-molded container and injection blow-molded container
JP2004161366A (en) * 2002-11-11 2004-06-10 Aska Company Container having binding performance for gel food
JP2006282260A (en) * 2005-04-04 2006-10-19 Naris Cosmetics Co Ltd Cosmetic container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3022824A1 (en) * 2014-11-13 2016-01-01 Sidel Participations STRETCH ROD FOR A STRETCH MOLDING DEVICE FOR BLOWING CONTAINERS, ESPECIALLY BOTTLES OF PLASTIC MATERIAL
WO2022196658A1 (en) * 2021-03-15 2022-09-22 日精エー・エス・ビー機械株式会社 Resin container manufacturing method and manufacturing apparatus

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