JP5584929B2 - Resin container - Google Patents

Resin container Download PDF

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Publication number
JP5584929B2
JP5584929B2 JP2010282306A JP2010282306A JP5584929B2 JP 5584929 B2 JP5584929 B2 JP 5584929B2 JP 2010282306 A JP2010282306 A JP 2010282306A JP 2010282306 A JP2010282306 A JP 2010282306A JP 5584929 B2 JP5584929 B2 JP 5584929B2
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Japan
Prior art keywords
projecting
resin container
groove
recesses
region
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JP2010282306A
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JP2012126449A (en
Inventor
剛 吉良
泰彦 赤沼
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Suntory Holdings Ltd
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Suntory Holdings Ltd
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Priority to JP2010282306A priority Critical patent/JP5584929B2/en
Application filed by Suntory Holdings Ltd filed Critical Suntory Holdings Ltd
Priority to PCT/JP2011/078934 priority patent/WO2012081627A1/en
Priority to ES11848677.8T priority patent/ES2640454T3/en
Priority to PT118486778T priority patent/PT2653400T/en
Priority to NZ611711A priority patent/NZ611711A/en
Priority to AU2011342160A priority patent/AU2011342160B2/en
Priority to EP11848677.8A priority patent/EP2653400B1/en
Priority to CN201110424989.5A priority patent/CN102556461B/en
Priority to TW100146837A priority patent/TWI462860B/en
Publication of JP2012126449A publication Critical patent/JP2012126449A/en
Priority to HK12111930.6A priority patent/HK1170994A1/en
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Publication of JP5584929B2 publication Critical patent/JP5584929B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
    • B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
    • B65D1/0261—Bottom construction
    • B65D1/0284—Bottom construction having a discontinuous contact surface, e.g. discrete feet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/40—Details of walls
    • B65D1/42—Reinforcing or strengthening parts or members
    • B65D1/44—Corrugations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2501/00—Containers having bodies formed in one piece
    • B65D2501/0009—Bottles or similar containers with necks or like restricted apertures designed for pouring contents
    • B65D2501/0018—Ribs
    • B65D2501/0036—Hollow circonferential ribs

Description

本発明は、キャップが着脱自在な口部と、口部に連設される肩部と、肩部に連設される胴部と、胴部に連設して最下部に位置する底部とを備える樹脂製容器に関する。   The present invention includes a mouth part in which a cap is detachable, a shoulder part provided continuously with the mouth part, a trunk part provided continuously with the shoulder part, and a bottom part provided continuously with the trunk part and positioned at the lowest part. The present invention relates to a resin container.

ペットボトルに代表される樹脂製容器は、成形が容易で大量生産に適している。また、ある程度の機械的強度があり、且つ軽量であるといった優れた特性を有していることから、各種の液体等を充填する容器として広い分野で用いられている。特に近年では、お茶やミネラルウォータ等の飲料用容器として大量に使用されており、店頭における販売だけでなく自動販売機用としても使用されている。   Resin containers represented by PET bottles are easy to mold and suitable for mass production. Moreover, since it has a certain level of mechanical strength and has excellent properties such as being lightweight, it is used in a wide range of fields as a container for filling various liquids. Particularly in recent years, it has been used in large quantities as containers for beverages such as tea and mineral water, and is used not only for sales at stores but also for vending machines.

近年、環境問題の意識が高まり、樹脂製容器の軽量化が積極的に進められている。しかし、軽量化により容器の肉厚が薄くなると、強度が全体的に低下するため、流通時に加えられる衝撃や荷重に耐えられなくなり、さらに消費者が飲用時に持ち難くなるという問題が生じている。   In recent years, awareness of environmental problems has increased, and weight reduction of resin containers has been actively promoted. However, when the container thickness is reduced due to weight reduction, the strength decreases as a whole, so that it becomes impossible to withstand the impact and load applied during distribution, and further, it becomes difficult for consumers to hold when drinking.

このような問題を解決するために発明された従来の樹脂製容器として、例えば、特許文献１に示すものが知られている。ここでは、胴部の全周にわたる溝を、胴部の上下方向の複数箇所に設けて樹脂製容器の強度を確保しようとしている（特許文献１参照）。   As a conventional resin container invented to solve such a problem, for example, the one shown in Patent Document 1 is known. Here, the groove | channel over the perimeter of a trunk | drum is provided in the several places of the up-down direction of a trunk | drum, and it is going to ensure the intensity | strength of a resin container (refer patent document 1).

特開２００９−１５４９５９号公報JP 2009-154959 A

しかしながら、従来の樹脂製容器では、上下方向から加えられる衝撃や荷重に対して必ずしも十分な強度を確保できるものではなかった。例えば、従来の樹脂製容器に飲料等を充填した商品を、縦にした状態で積み上げていくと、積み上げられた商品の荷重によって、下方の商品が座屈することがあった。
従って本発明の目的は、容器の上方又は下方から加えられる衝撃や荷重に対して座屈し難く、尚且つ軽量化が図れる樹脂製容器を提供することにある。 However, conventional resin containers cannot always ensure sufficient strength against impacts and loads applied from above and below. For example, when a product in which a conventional resin container is filled with a beverage or the like is stacked in a vertical state, the lower product may buckle due to the load of the stacked product.
Accordingly, an object of the present invention is to provide a resin container that is not easily buckled against an impact or load applied from above or below the container and that can be reduced in weight.

本発明の樹脂製容器の第１特徴構成は、キャップが着脱自在な口部と、口部に連設される肩部と、肩部に連設される胴部と、胴部に連設して最下部に位置する底部とを備える樹脂製容器において、前記胴部の上下方向の中心よりも下側に、径方向外側ほど幅広となる溝を全周にわたって有する上下方向に弾性変形可能なクッション部を備え、前記クッション部が、前記径方向外側ほど幅広となる溝の上下のそれぞれに、全周にわたる別の溝を１以上備え、前記径方向外側ほど幅広となる溝の深さが、前記別の溝の深さよりも深く構成される点にある。 The first characteristic configuration of the resin container according to the present invention includes a mouth part in which a cap is detachable, a shoulder part connected to the mouth part, a trunk part connected to the shoulder part, and a trunk part. A cushion that is elastically deformable in the vertical direction, and has a groove that is wider toward the outer side in the radial direction, below the center in the vertical direction of the body portion. Each of the upper and lower sides of the groove that becomes wider toward the outer side in the radial direction is provided with one or more other grooves over the entire circumference, and the depth of the groove that becomes wider toward the outer side in the radial direction is It lies in the fact that will be deeper configuration than the depth of another groove.

〔作用及び効果〕
本構成のごとく、胴部の下端部分に、上下方向に弾性変形可能なクッション部を備えるものであれば、容器に対して上下方向から衝撃や荷重が加えられても、クッション部がその径方向外側ほど幅広となる溝を中心として弾性変形してその荷重を吸収するため、容器の座屈を防止することができる。また、クッション部が、胴部の上下方向の中心よりも下側に位置するため、飲料等を本樹脂製容器に充填した場合、その重心付近か又は重心よりも低い位置で弾性変形するようになり、より安定して衝撃又は荷重を吸収することができる。
本構成によれば、クッション部が三段以上のバネ構造を備えることになるため、より確実に荷重を吸収することができる。
本構成によれば、正面視におけるクッション部の形状が、径方向外側ほど幅広となる溝の付近が最も縮径したくびれ形状となる。これにより、上下方向から荷重等が加えられた場合に径方向外側ほど幅広となる溝に対して応力が集中し易くなるため、よりスムーズに弾性変形し得る。 [Action and effect]
As in this configuration, if the lower end portion of the body portion is provided with a cushion portion that can be elastically deformed in the vertical direction, the cushion portion is in the radial direction even when an impact or load is applied to the container from the vertical direction. Since the outer side is elastically deformed around the groove that becomes wider toward the outside and absorbs the load, buckling of the container can be prevented. In addition, since the cushion part is located below the center of the body part in the vertical direction, when a beverage or the like is filled in the resin container, the cushion part is elastically deformed near the center of gravity or at a position lower than the center of gravity. Thus, the impact or load can be absorbed more stably.
According to this structure, since a cushion part is provided with the spring structure of 3 steps | paragraphs or more, a load can be absorbed more reliably.
According to this configuration, the shape of the cushion portion in the front view is a constricted shape in which the vicinity of the groove that becomes wider toward the outer side in the radial direction has the smallest diameter. As a result, when a load or the like is applied from the vertical direction, stress is easily concentrated on the groove that becomes wider toward the outer side in the radial direction, so that the elastic deformation can be performed more smoothly .

第２特徴構成は、前記クッション部が、前記胴部の下端部分に位置する点にある。   The second characteristic configuration is that the cushion portion is located at a lower end portion of the trunk portion.

〔作用及び効果〕
本構成によれば、クッション部が胴部の下端部分に位置するため、さらにより安定して衝撃又は荷重を吸収することができると共に、上方に設けられる場合ほど目立たなくなるため樹脂製容器の意匠性に与える影響も少ない。 [Action and effect]
According to this configuration, since the cushion portion is located at the lower end portion of the body portion, the impact or load can be absorbed more stably, and the design property of the resin container is less noticeable as it is provided above. There is little influence on.

第３特徴構成は、前記胴部の径方向の内側に突出する第１突出領域と、該第１突出領域よりもさらに径方向の内側に山状に突出する第２突出領域とを備え、前記第１突出領域及び前記第２突出領域が周方向に交互に配置されることにより横断面形状が波状の円周形状となる波状凹部を、前記胴部の上下方向に複数備える点にある。 The third characteristic configuration includes a first projecting region projecting inward in the radial direction of the trunk portion, and a second projecting region projecting in a mountain shape further inward in the radial direction than the first projecting region, The first projecting region and the second projecting region are alternately arranged in the circumferential direction, whereby a plurality of wavy recesses having a circumferential shape with a wavy cross section are provided in the vertical direction of the body portion .

第４特徴構成は、前記複数の波状凹部が、周方向に互いに位相をずらして配置され、１つの波状凹部の第１突出領域が配置される位置において、その直下に位置する別の波状凹部の第２突出領域が配置される点にある。 According to a fourth characteristic configuration, the plurality of wavy recesses are arranged out of phase with each other in the circumferential direction, and at a position where the first projecting region of one wavy recess is arranged, another wavy recess located immediately below It exists in the point by which a 2nd protrusion area | region is arrange | positioned .

本発明の樹脂製容器の正面図である。It is a front view of the resin container of the present invention. 本発明の樹脂製容器における直胴部の斜視図である。It is a perspective view of the straight body part in the resin-made containers of this invention. 図１中の矢視線ＩＩＩ−ＩＩＩの横断面図である。FIG. 3 is a transverse sectional view taken along line III-III in FIG. 1. 図１中の矢視線ＩＶ−ＩＶの横断面図である。FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. 1. 図１中の矢視線Ｖ−Ｖの横断面図である。It is a cross-sectional view of the arrow line VV in FIG. 本発明の樹脂製容器の底部の底面図である。It is a bottom view of the bottom part of the resin container of this invention. 直胴部の別実施形態を示した正面図である。It is the front view which showed another embodiment of the straight body part.

以下、本発明の樹脂製容器に係る好適な実施の形態として、飲料用のプラスチックボトルを図面に基づいて説明する。
〔実施形態〕
まず、本明細書で用いる各種の用語について以下のとおり定義する。
本明細書中において上下方向とは、図１のプラスチックボトル１（以下、ボトル１と略称する）の中心軸Ｘ−Ｘの方向を意味し、紙面の奥側が「上」、手前側が「下」となる。横方向又は水平方向とは、中心軸Ｘ−Ｘ方向に直交する方向を意味する。周方向とは、横断面形状の輪郭に沿う方向を意味する。径方向とは、中心軸Ｘ−Ｘ上の任意の一点を円の中心として考えた場合におけるその円の半径方向を意味する。高さ又は幅とは、中心軸Ｘ−Ｘ方向に沿う長さを意味する。深さとは、径方向に沿う長さを意味する。横断面形状とは、中心軸Ｘ−Ｘに直交する平面（横断面）におけるボトル１の断面形状を意味する。 Hereinafter, as a preferred embodiment of the resin container of the present invention, a plastic bottle for beverage will be described based on the drawings.
Embodiment
First, various terms used in this specification are defined as follows.
In this specification, the vertical direction means the direction of the central axis XX of the plastic bottle 1 in FIG. 1 (hereinafter abbreviated as “bottle 1”), the back side of the paper is “up”, and the near side is “down”. It becomes. The horizontal direction or the horizontal direction means a direction orthogonal to the central axis XX direction. The circumferential direction means a direction along the contour of the cross-sectional shape. The radial direction means the radial direction of a circle when an arbitrary point on the central axis XX is considered as the center of the circle. The height or width means a length along the direction of the central axis XX. The depth means a length along the radial direction. A cross-sectional shape means the cross-sectional shape of the bottle 1 in the plane (cross section) orthogonal to the central axis XX.

図１に示すように、本実施形態に係るボトル１は、上方から順に、キャップが着脱自在な口部２と、口部２に連設される肩部３と、肩部３に連設される胴部４と、胴部４に連設され最下部に位置する底部５とを備えて構成されており、これらの部分によって飲料を貯留する空間が内側に形成される。   As shown in FIG. 1, the bottle 1 according to the present embodiment is provided in order from the top, a mouth part 2 with a detachable cap, a shoulder part 3 connected to the mouth part 2, and a shoulder part 3. The body part 4 and the bottom part 5 connected to the body part 4 and positioned at the lowermost part are formed, and a space for storing a beverage is formed inside by these parts.

ボトル１の口部２、肩部３、胴部４、及び底部５は、例えば、ポリエチレン、ポリプロピレン、ポリエチレンテレフタレートなどの熱可塑性樹脂を主材料として、二軸延伸ブロー成形などの延伸成形法によって一体的に成形される。   The mouth part 2, shoulder part 3, body part 4 and bottom part 5 of the bottle 1 are integrally formed by a stretch molding method such as biaxial stretch blow molding using a thermoplastic resin such as polyethylene, polypropylene or polyethylene terephthalate as a main material. Molded.

ボトル１は、成形後に洗浄・殺菌処理されてから飲料が充填される。充填される飲料としては、例えばミネラルウォータ、緑茶、ウーロン茶又は果汁等の非炭酸飲料を挙げることができるが、この他にも、例えば、炭酸飲料やソース等の食品を充填しても良い。   The bottle 1 is washed and sterilized after molding and then filled with a beverage. Examples of the beverage to be filled include non-carbonated beverages such as mineral water, green tea, oolong tea, and fruit juice. In addition, for example, food such as carbonated beverages and sauces may be filled.

（口部）
口部２は、上端が開口しており、飲料の注ぎ口として機能する。口部２の開口は、図示省略した着脱自在なキャップにより開閉される。 (Mouth)
The mouth part 2 is open at the upper end and functions as a beverage spout. The opening of the mouth 2 is opened and closed by a removable cap (not shown).

（肩部）
肩部３は、横断面形状が略円形の多面体部が、下方にかけて徐々に拡径してなり、下端が胴部４の第１凹部６に連続している。 (Shoulder)
The shoulder portion 3 has a polyhedral portion having a substantially circular cross-sectional shape that gradually increases in diameter toward the lower side, and has a lower end continuous with the first concave portion 6 of the trunk portion 4.

（胴部）
胴部４は、上方から順に、第１凹部６と、第１凹部６に連設される直胴部７と、直胴部７に連設される第２凹部８と、第２凹部８に連設されるくびれ部９と、くびれ部９に連設されるクッション部１０とを備えて構成される。 (Torso)
The body portion 4 includes, in order from the top, a first recessed portion 6, a straight body portion 7 provided continuously with the first recessed portion 6, a second recessed portion 8 provided continuously with the straight body portion 7, and a second recessed portion 8. A constricted portion 9 provided continuously and a cushion portion 10 provided continuously to the constricted portion 9 are provided.

〔第１及び第２凹部〕
第１及び第２凹部６，８は、胴部４の全周にわたって設けられている溝であり、ボトル１の側面に対して加えられる衝撃や荷重に対する強度（以下、側面強度と略称する）を補強する補強リブとして機能する。尚、第１及び第２凹部６，８のそれぞれの溝の幅と溝の深さは胴部４の全周にわたって一定であり、また第１凹部６の溝の幅及び溝の深さのそれぞれは、第２凹部８の溝の幅及び溝の深さと同一である。 [First and second recesses]
The first and second recesses 6 and 8 are grooves provided over the entire circumference of the body portion 4 and have a strength against an impact or a load applied to the side surface of the bottle 1 (hereinafter referred to as side surface strength). Functions as a reinforcing rib for reinforcement. The width and depth of each of the first and second recesses 6 and 8 are constant over the entire circumference of the body portion 4, and the width and depth of the groove of the first recess 6 are each constant. Is the same as the groove width and groove depth of the second recess 8.

〔直胴部〕
直胴部７は、横断面形状が正円の円形で構成された円筒状の部分であり、ボトル１の最大外径を有している。また、直胴部７の外周面には飲料の銘柄等を表示するラベルを設けることができる。直胴部７には、第１〜第３波状凹部１１，１２，１３が上下方向に等間隔で設けられている。これらの第１〜第３波状凹部１１，１２，１３は、直胴部７の全周にわたって設けられる溝であり、上記第１及び第２凹部６，８と同じく、ボトル１の側面強度を補強する補強リブとしての機能を有する。 (Straight body part)
The straight body portion 7 is a cylindrical portion having a circular shape whose cross-sectional shape is a perfect circle, and has the maximum outer diameter of the bottle 1. In addition, a label for displaying a brand of beverage or the like can be provided on the outer peripheral surface of the straight body portion 7. The straight body portion 7 is provided with first to third wavy concave portions 11, 12, 13 at equal intervals in the vertical direction. These first to third wavy concave portions 11, 12, 13 are grooves provided over the entire circumference of the straight body portion 7, and reinforce the side strength of the bottle 1, similar to the first and second concave portions 6, 8. It functions as a reinforcing rib.

〔第１〜第３波状凹部〕
以下、第１〜第３波状凹部１１，１２，１３について説明するが、これらはいずれも同じ構成を有するため、その構造については第１波状凹部１１についてのみ説明し、第２及び第３波状凹部１２，１３の構造についての説明は省略する。 [First to third corrugated recesses]
Hereinafter, the first to third wavy recesses 11, 12, and 13 will be described. Since these have the same configuration, only the first wavy recess 11 will be described, and the second and third wavy recesses will be described. The description of the structures 12 and 13 is omitted.

図２に示すように、第１波状凹部１１は、径方向の内側に突出する第１突出領域１４と、この第１突出領域１４よりもさらに径方向の内側に山状に突出する第２突出領域１５とを備える。   As shown in FIG. 2, the first corrugated recess 11 includes a first projecting region 14 projecting inward in the radial direction and a second projecting projecting in a mountain shape further inward in the radial direction than the first projecting region 14. Region 15.

第１突出領域１４及び第２突出領域１５は、周方向に交互に配置されている。本実施形態では、第１突出領域１４及び第２突出領域１５のそれぞれが、周方向に約５１度の間隔で７か所ずつ設けられている。   The first protruding areas 14 and the second protruding areas 15 are alternately arranged in the circumferential direction. In the present embodiment, each of the first projecting region 14 and the second projecting region 15 is provided in seven places at intervals of about 51 degrees in the circumferential direction.

図３に示すように、第２突出領域１５の溝の横断面形状は、第１突出領域１４の位置よりも径方向の内側に山状に突出する形状を有するため、第１波状凹部１１全体の横断面形状は、起伏のある波状の円周形状となる。   As shown in FIG. 3, the cross-sectional shape of the groove of the second projecting region 15 has a shape projecting in a mountain shape on the inner side in the radial direction from the position of the first projecting region 14. The cross-sectional shape of is a wavy circumferential shape with undulations.

図１及び図２に示すように、第２突出領域１５における溝は、上下方向に２つの山状の傾斜面１６を備えることによって、径方向の外側に向かうほど溝の幅が広くなるように構成されている。また、第１突出領域１４を構成する溝１７の幅は、第２突出領域１５を構成する溝１８の幅よりも狭いため、図１に示すように、幅の狭い溝１７と、幅の広い溝１８とが上下に波状の曲線を形成しながら周方向に交互に配置されることとなる。   As shown in FIGS. 1 and 2, the groove in the second projecting region 15 is provided with two mountain-shaped inclined surfaces 16 in the vertical direction so that the width of the groove becomes wider toward the outside in the radial direction. It is configured. Further, since the width of the groove 17 constituting the first projecting region 14 is narrower than the width of the groove 18 constituting the second projecting region 15, as shown in FIG. The grooves 18 are alternately arranged in the circumferential direction while forming a wavy curve up and down.

図２に示すように、第１〜第３波状凹部１１，１２，１３は、周方向に互いに位相をずらして配置される。例えば、第１波状凹部１１の第１突出領域１４が配置される位置において、下方の第２波状凹部１２では第２突出領域１５が配置され、さらに下方の第３波状凹部１３では第１突出領域１４が配置される。また図１及び図２に示すように、第１波状凹部１１の幅の狭い溝１７が配置される位置において、下方の第２波状凹部１２では幅の広い溝１８が配置され、さらに下方の第３波状凹部１３では幅の狭い溝１７が配置される。   As shown in FIG. 2, the first to third wave-shaped recesses 11, 12, and 13 are arranged with their phases shifted in the circumferential direction. For example, at the position where the first protruding region 14 of the first wavy recess 11 is disposed, the second protruding region 15 is disposed in the second wavy recess 12 below, and the first protruding region is further disposed in the lower third wavy recess 13. 14 is arranged. Further, as shown in FIGS. 1 and 2, at the position where the narrow groove 17 of the first wavy recess 11 is disposed, a wide groove 18 is disposed in the second wavy recess 12 below, and the lower first In the three-wave recess 13, a narrow groove 17 is arranged.

〔くびれ部〕
図１に示すように、くびれ部９は、消費者がボトル１を把持し易いように構成された部分である。くびれ部９は、正面視において、丸みを帯びたひし形及び瓢箪のような形をしたパネルを交互に組み合わせた形状を備えており、くびれ部９における上下方向の中央位置１９に向かって徐々に縮径している。 [Constriction]
As shown in FIG. 1, the constricted portion 9 is a portion configured so that a consumer can easily grasp the bottle 1. The constricted portion 9 has a shape obtained by alternately combining rounded rhombus-shaped and ridge-like panels when viewed from the front, and gradually contracts toward the center position 19 in the vertical direction of the constricted portion 9. It has a diameter.

図示しないが、くびれ部９の横断面形状は多角形状を有する。くびれ部９の中央位置１９付近の横断面形状は全体的に丸みを帯びた略８角形であり、中央位置１９から上下方向に遠ざかるほど円形に近づき、上下の両端部分では全体的に丸みを帯びた１６角形となる。   Although not shown, the cross-sectional shape of the constricted portion 9 has a polygonal shape. The cross-sectional shape near the center position 19 of the constricted portion 9 is a substantially octagonal shape that is rounded as a whole. The farther the distance from the center position 19 is, the closer the shape is to a circle. Hexagonal.

〔クッション部〕
図１に示すように、クッション部１０は、その全周にわたる３つの溝として、径方向外側ほど幅広となりＶ字状の縦断面形状を有する溝のＶ字凹部２０と、Ｖ字凹部２０の上下に設けられる２つの小凹部２１，２１とを備える蛇腹状の部分であって、Ｖ字凹部２０を対称軸として線対称な構成を有する。図４に示すように小凹部２１の横断面形状は起伏のある波状の円周形状を有する。また、図５に示すようにＶ字凹部２０の横断面形状もまた起伏のある波状の円周形状を有する。 [Cushion part]
As shown in FIG. 1, the cushion portion 10 has three grooves extending over the entire circumference, the groove having a V-shaped longitudinal section that is wider toward the outer side in the radial direction, and the upper and lower sides of the V-shaped recess 20. A bellows-like portion provided with two small recesses 21 and 21 provided in the shape, and has a line-symmetric configuration with the V-shaped recess 20 as an axis of symmetry. As shown in FIG. 4, the cross-sectional shape of the small recess 21 has a wavy circumferential shape with undulations. Further, as shown in FIG. 5, the cross-sectional shape of the V-shaped recess 20 also has an undulating circumferential shape.

Ｖ字凹部２０の最深部の内径の大きさは、くびれ部９における上下方向の中央位置における内径の大きさと略同じである。小凹部２１の溝の幅は、上記第１及び第２凹部６，８、第１〜第３波状凹部１１，１２，１３、及びＶ字凹部２０のいずれの溝の幅よりも小さい。また小凹部２１の溝の深さは、上記第１及び第２凹部８、第１〜第３波状凹部１１，１２，１３、及びＶ字凹部２０のいずれの溝の深さよりも浅い。   The inner diameter of the deepest portion of the V-shaped recess 20 is substantially the same as the inner diameter at the center position in the vertical direction of the constricted portion 9. The width of the groove of the small recess 21 is smaller than the width of any of the first and second recesses 6, 8, the first to third wavy recesses 11, 12, 13, and the V-shaped recess 20. Further, the depth of the groove of the small recess 21 is shallower than the depth of any of the first and second recesses 8, the first to third corrugated recesses 11, 12, 13 and the V-shaped recess 20.

クッション部１０は、Ｖ字凹部２０及び２つの小凹部２１，２１という３つの溝を有することで３段バネ構造となっており、これにより上下方向に弾性変形することができる。そのため、ボトル１に対して上下方向から荷重が加えられても、クッション部１０が弾性変形してその荷重を吸収することができ、ボトル１の座屈を防止することができる。   The cushion portion 10 has a three-stage spring structure by having three grooves of the V-shaped concave portion 20 and the two small concave portions 21 and 21, and can thereby be elastically deformed in the vertical direction. Therefore, even if a load is applied to the bottle 1 from above and below, the cushion portion 10 can be elastically deformed to absorb the load, and the bottle 1 can be prevented from buckling.

尚、本実施形態におけるクッション部１０は、その全周にわたる溝として、Ｖ字凹部２０及び２つの小凹部２１，２１という３つの溝を備えるが、この構成に限定されるものではなく、他にも例えば、Ｖ字凹部２０のみを１つ又は複数備える構成、Ｖ字凹部２０の上下のそれぞれに小凹部２１を１以上設ける構成、あるいは、複数のＶ字凹部２０と１つ又は複数の小凹部２１とを備える構成などとしても良い。また、本実施形態では、クッション部１０を胴部４の下端部分に設けてあるが、この構成に限定されるものではなく、クッション部１０を胴部４の上下方向の中心よりも下側に設ける構成であれば良い。   In addition, although the cushion part 10 in this embodiment is provided with three grooves, the V-shaped recessed part 20 and the two small recessed parts 21 and 21, as a groove over the perimeter, it is not limited to this structure, For example, a configuration in which only one or more V-shaped recesses 20 are provided, a configuration in which one or more small recesses 21 are provided above and below the V-shaped recess 20, or a plurality of V-shaped recesses 20 and one or more small recesses 21 or the like. Moreover, in this embodiment, although the cushion part 10 is provided in the lower end part of the trunk | drum 4, it is not limited to this structure, The cushion part 10 is below the center of the up-down direction of the trunk | drum 4. Any configuration may be used.

（底部）
図１に示すように、底部５は、周壁２２と底壁２３とを備えて構成されている。周壁２２は、底壁２３の周縁から上方に拡開するように立ち上がる円筒状の部分である。底壁２３は正円の円形形状を有し、その外周縁に配置される輪状の接触部２４と、接触部２４の内縁から底壁２３の円の中心に向かってなだらかに円錐状に盛りあがる円錐部２５と、円錐部２５の円の中心部に形成される上方に突出する円形の窪み２６とを備えて構成されている。尚、ボトル１を平らな机等の上に立てて置く場合、接触部２４が机等と接する。 (bottom)
As shown in FIG. 1, the bottom 5 includes a peripheral wall 22 and a bottom wall 23. The peripheral wall 22 is a cylindrical portion that rises upward from the periphery of the bottom wall 23. The bottom wall 23 has a circular shape of a perfect circle, and a ring-shaped contact portion 24 disposed on the outer peripheral edge thereof, and a cone that gently rises in a conical shape from the inner edge of the contact portion 24 toward the center of the circle of the bottom wall 23. A portion 25 and a circular recess 26 projecting upward and formed at the center of a circle of the conical portion 25 are configured. When the bottle 1 is placed on a flat desk or the like, the contact portion 24 contacts the desk or the like.

図６に示すように、底壁２３の窪み２６から周壁２２にわたる溝である縦凹部２７が、底壁２３の窪み２６から放射状に周方向に等間隔で８箇所に設けられている。さらに、円錐部２５の外縁から周壁２２にわたる溝である小縦凹部２８が、隣り合う縦凹部２７の間に位置するように周方向に等間隔で８箇所に設けられている。   As shown in FIG. 6, vertical recesses 27, which are grooves extending from the recess 26 of the bottom wall 23 to the peripheral wall 22, are provided at eight locations radially from the recess 26 of the bottom wall 23 at equal intervals in the circumferential direction. Further, small vertical recesses 28 which are grooves extending from the outer edge of the conical portion 25 to the peripheral wall 22 are provided at eight positions at equal intervals in the circumferential direction so as to be positioned between adjacent vertical recesses 27.

縦凹部２７及び小縦凹部２８は、底部５の強度を補強する補強リブとして機能する。またこれらの縦凹部２７及び小縦凹部２８は、ボトル１の成形後にその内側を洗浄する際、洗浄液が縦凹部２７及び小縦凹部２８を伝って底部５の全体に満遍なくいきわたるように洗浄液を誘導する機能を有しており、底部５の洗浄性能を向上させるものである。   The vertical recess 27 and the small vertical recess 28 function as reinforcing ribs that reinforce the strength of the bottom 5. These vertical recesses 27 and small vertical recesses 28 guide the cleaning liquid so that when the inside of the bottle 1 is cleaned after the bottle 1 is formed, the cleaning liquid travels through the vertical recesses 27 and the small vertical recesses 28 and spreads over the entire bottom portion 5. This improves the cleaning performance of the bottom 5.

〔その他の実施形態〕
（１）上述の実施形態のボトル１における各構成部分の形状等については、上述の実施形態に限定されるものではなく、必要に応じて任意に変更して良い。
（２）上述の実施形態においては、ボトル１の正面視において第１〜第３波状凹部１１，１２，１３が水平に設けられているが、この構成に限定されるものではなく、他にも例えば、図７に示すように、ボトル１の正面視において第１〜第３波状凹部１１，１２，１３を傾斜させた状態で設けるように構成しても良い。 [Other Embodiments]
(1) About the shape of each component in the bottle 1 of the above-mentioned embodiment, it is not limited to the above-mentioned embodiment, You may change arbitrarily as needed.
(2) In the above-described embodiment, the first to third corrugated recesses 11, 12, and 13 are provided horizontally in the front view of the bottle 1, but the present invention is not limited to this configuration. For example, as shown in FIG. 7, the first to third wavy concave portions 11, 12, and 13 may be provided in an inclined state in a front view of the bottle 1.

本発明の樹脂製容器は、水、緑茶、ウーロン茶、果汁等の非炭酸飲料に限らず、炭酸飲料やソース等の食品を充填する容器としても用いることができる。   The resin container of the present invention is not limited to non-carbonated beverages such as water, green tea, oolong tea, and fruit juice, but can also be used as a container for filling foods such as carbonated beverages and sauces.

１ ボトル
２ 口部
３ 肩部
４ 胴部
５ 底部
１０ クッション部 1 Bottle 2 Mouth 3 Shoulder 4 Body 5 Bottom 10 Cushion

Claims (4)

キャップが着脱自在な口部と、口部に連設される肩部と、肩部に連設される胴部と、胴部に連設して最下部に位置する底部とを備える樹脂製容器において、
前記胴部の上下方向の中心よりも下側に、径方向外側ほど幅広となる溝を全周にわたって有する上下方向に弾性変形可能なクッション部を備え、
前記クッション部が、前記径方向外側ほど幅広となる溝の上下のそれぞれに、全周にわたる別の溝を１以上備え、
前記径方向外側ほど幅広となる溝の深さが、前記別の溝の深さよりも深く構成される樹脂製容器。 A resin container comprising a mouth part in which a cap is detachable, a shoulder part provided continuously with the mouth part, a trunk part provided continuously with the shoulder part, and a bottom part provided continuously with the trunk part and positioned at the lowest part. In
A cushion part that is elastically deformable in the up and down direction and has a groove that becomes wider toward the outer side in the radial direction, below the center in the up and down direction of the body part,
The cushion portion is provided with one or more other grooves over the entire circumference above and below the groove that becomes wider toward the radially outer side ,
The radial depth of the outer enough wide and becomes grooves, said further deeply constructed Ru resin container than the depth of the groove. 前記クッション部が、前記胴部の下端部分に位置する請求項１に記載の樹脂製容器。   The resin container according to claim 1, wherein the cushion portion is located at a lower end portion of the trunk portion. 前記胴部の径方向の内側に突出する第１突出領域と、該第１突出領域よりもさらに径方向の内側に山状に突出する第２突出領域とを備え、前記第１突出領域及び前記第２突出領域が周方向に交互に配置されることにより横断面形状が波状の円周形状となる波状凹部を、前記胴部の上下方向に複数備える請求項１又は２に記載の樹脂製容器。  A first projecting region projecting inward in the radial direction of the body portion; and a second projecting region projecting in a mountain shape further inward in the radial direction than the first projecting region, the first projecting region and the The resin container according to claim 1 or 2, comprising a plurality of wavy recesses in a vertical direction of the body portion, wherein the second projecting regions are alternately arranged in the circumferential direction to form a wavy circumferential shape in cross section. . 前記複数の波状凹部が、周方向に互いに位相をずらして配置され、１つの波状凹部の第１突出領域が配置される位置において、その直下に位置する別の波状凹部の第２突出領域が配置される請求項３に記載の樹脂製容器。  The plurality of undulating recesses are arranged out of phase with each other in the circumferential direction, and the second protruding region of another undulating recess located immediately below the first protruding region of one undulating recess is arranged The resin container according to claim 3.
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AU2011342160A1 (en) 2013-07-04
TWI462860B (en) 2014-12-01
NZ611711A (en) 2015-09-25
JP2012126449A (en) 2012-07-05
EP2653400A1 (en) 2013-10-23
TW201242856A (en) 2012-11-01
WO2012081627A1 (en) 2012-06-21
PT2653400T (en) 2017-10-18
EP2653400B1 (en) 2017-08-30
CN102556461A (en) 2012-07-11
HK1170994A1 (en) 2013-03-15
EP2653400A4 (en) 2014-06-18
ES2640454T3 (en) 2017-11-03
AU2011342160B2 (en) 2016-10-06
CN102556461B (en) 2015-01-07

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