201116462 六、發明說明： 【明所屬^椅領】 發明領域 本發明係有關於用以填充飲料之瓶形狀容器，例如合 成樹脂製之瓶型容器。 L· ^tr ~Ji 發明背景 為了填充各種飲料’廣泛地使用瓶型容器，例如合成 樹脂製之瓶型容器。該等瓶型容器之橫截面為了容易收納 或搬運至冰箱等，大多為矩形。 瓶型容器存在其容量2公升左右之大型者，如此之大型 瓶型容器有時無法藉人的手充分地握持其本體部。因此， 近年來，為了容易握持瓶型容器，一般的作法是於容器之 本體部形成於腰部，即周方向延伸之寬幅之溝（參照專利文 獻1)。 先前技術文獻 專利文獻 專利文獻1專利3059975號說明書 【發明内容】 發明概要 發明欲解決之課題 但是，在將液體充滿於瓶型容器’特別是2公升用瓶型 容器中時，瓶型容器變成相當重。因此，拿起如此瓶型容 器時，人必須以非常強大之力量握持瓶型容器之本體部。 201116462 以人之手之對向的手指，例如大拇指及與其對向之四 個手指，例如食指、中指、無名指或小指互相大幅打開之 姿勢，人之手不會產生高握力。為了產生高握力， 必須呈適合於此之姿勢…般而言，如此之姿勢是人之 的大梅指及與其對向之四個手指僅互相分離—個=頭^ 右之距離的姿勢。 里左 而且，拿起充滿液體之瓶型容器時， T 入的手呈前述姿 勢，大拇指及與其對向之四個手指分 刀另】插入瓶型容器之 側的腰部’接著，藉全部的手指以強大 洩大之力量握持、拿 瓶型容器。在此’由大姆指及食指之側觀看人的 的手通常是呈大略C字形狀。 人 但是，瓶型容器之本體部之橫截面為矩形時由 部之橫截面亦為與本體部之橫截面同樣之矩形， '腰 及與其對向之四個手指被矩形之腰部分開。因此大拇指 法適切地握持瓶型容器的情形。又，彳f 產生無 僅以手指之前蠕握 容器時，指又及相關之手掌部份等未接觸腰部， 寺 拿起重的容器。 又’由於主要以手指產生強大之力量，故施加於人 手之手指的負擔非常大。此外，取下蓋時，當以強大之 量握持瓶型容器時，瓶型容器内之液體亦可能由，力 流 出。因此’希望在拿起填充有飲料之瓶型容器時， ^ U不太 強大之力量握持容器。 本發明係有鑑於如此情事作成者，且目的在於提供— 種不以強大力量握持，迅速地拿起之瓶型容器。 201116462 用以欲解決課題之手段 為達成前述目的，依據第1發明，提供一種瓶型容器， 其具有口部、本體部、連結前述口部及前述本體部之肩部、 及關閉前述本體部下端之底部，其中腰部延伸於前述本體 部之周面全體，該腰部包含由前述本體部朝内側傾斜之上 方及下方傾斜部、及位於該等2個傾斜部之間的溝底面，前 述腰部之前述溝底面之橫截面具有由圓弧構成之四個角部。 即，在第1發明中，由於腰部之橫截面之角部為圓弧， 且傾斜面包含於腰部全體，故人之對向的手指，例如大拇 指及與其對向之四個手指，該等指叉及相關之手掌的部份 適合腰部及上方之傾斜面。因此，藉沿著腰部插入人之對 向手指，接著使手上升，可不以強大力量握持，輕易地拿 起瓶型容器。 依據第2本發明，在第1發明中，前述本體部之橫截面 具有由圓弧構成之四個角部，前述本體部之角部之曲率半 徑為前述腰部之角部之曲率半徑以上。 即，在第2發明中，由於人的2個手指，例如大拇指及 中指間之指叉及相關手掌部份更適合腰部之溝底面及上方 之傾斜面，因此，人可以更自然之手的姿勢握持瓶型容器。 依據第3發明，在第1或第2發明中，更具有形成於前述 腰部之區域之至少一個凹部，前述腰部之角部之一端部連 結於前述凹部。 即，在第3發明中，由於腰部之橫截面之長邊側不存在 直線狀部份，故人之2個指叉及與該等指相關之手掌的部份 5 201116462 可更容易地握持瓶型容器。 依據第4發明，在第1發明中，形成互相對向之2個前述 凹部，前述凹部之中心及與其對向之凹部之中心間的周方 向距離為140mm至165mm。 圖式簡單說明 第1圖是依據本發明之一個實施型態之瓶型容器的立 體圖。 第2圖是第1圖所示之實施型態之瓶型容器的正面圖。 第3圖是第1圖所示之實施型態之瓶型容器的底面圖。 第4圖是沿第2圖所示之實施型態之瓶型容器之線B - B 觀看的橫截面圖。 第5圖是第1圖所示之實施型態之瓶型容器的正面部份 放大圖。 第6圖是沿第2圖所示之實施型態之瓶型容器之線A-A 觀看的縱截面圖。 第7圖是第6圖所示之凹部之縱截面圖。 第8圖是第1圖所示之實施型態之瓶型容器的側面圖。 【實方方式;1 用以實施發明之形態 以下，參照添附圖式說明本發明之實施型態。在以下 之圖式中，同樣之構件賦予同樣之參考符號。為了容易理 解，該等圖式之適當地變更縮尺。 第1圖是依據本發明之一個實施型態之瓶型容器的立 體圖，第2圖是第1圖所示之實施型態之瓶型容器的正面 201116462 圖。該等圖式所示之瓶型容器ι〇由合成樹脂，例如聚對苯 二甲酸乙二酯形成，為大約2公升之容量。瓶型容器10藉吹 塑成形預成形體，雙軸延伸形成。因此，依據本發明，瓶 变谷器10之厚度相當小。 如第1圖及第2圖所示，瓶型容器10主要由填充飲料等 液體之口部11、橫截面大略矩形狀之本體部12、連結口部 11與本體部12之肩部13、及在與口部u相反側上關閉本體 部12之底部構成。又，於口部11可安裝蓋，但為達簡潔之 目的，省略圖示蓋。 第3圖是第1圖所示之瓶型容器的底面圖。在底部中， 環繞瓶型容器1〇之中心線(：0形成圓形凹孔18。而且，多數 底部溝14a由圓形凹孔18放射狀地延伸到瓶型容器1〇之外 周面（參照第2圖）。該等圓形凹孔18及底部溝14a達成補強瓶 型谷器10之底部14的目的。 如第1圖及第2圖所示，朝本體部12之周方向延伸之腰 4 15形成於本體部12之縱方向中心位置。如第2圖所示，腰 部15呈寬幅溝之形態，且由從本體部上方部份4〇延伸之上 側傾斜面15a、從本體部下方部份45延伸之下側傾斜面 15b、及連接該等上側傾斜面15a與下側傾斜面i5b之溝底面 15c構成。藉如此之腰部15，本體部12分成本體部上方部份 40與本體部下方部份45。 第4圖是沿第2圖所示之瓶型容器之線B_B觀看的橫截 面圖。如第4圖所示，包含腰部15之溝底面15c之區域的橫 截面形狀亦為大略矩形狀。 7 201116462 第5圖是本實施型態之瓶型容器的部份放大圖。如由第 5圖可知’該等上側傾斜面15a及下側傾斜面15b之上緣及下 緣分別朝水平方向延伸。又，腰部15之溝底面15c相對於瓶 型容器10之底面為垂直。 腰部15全體之縱向之高度為41.9mm，僅腰部15之溝底 面15C之縱向高度為7mm。因此，使人的大拇指及與其對向 之四指，例如食指、中指、無名指或小指，及該等指叉和 相關之手掌的部份密接於腰部15。又，如圖所示，腰部15 之下側傾斜面15b比上側傾斜面15a大許多，且下側傾斜面 15b向外側由凸狀之曲面構成。 此外，如由第5圖可知，瓶型容器1〇之正面側中，腰部 15之區域形成有凹部2〇。凹部2〇，如由第4圖可知，亦互相 對Θ升y成於瓶型谷器1()之背面側。又，凹部亦可鄰接於 腰部15形成於上方或下方。 在第5圖中’凹部2G之上端及下端分別在瓶型容器10之 縱向上越過’冓底面15e，部份地延伸到上側傾斜面…及， 側傾斜面15b又，凹部2〇之緣部由形成於上側傾斜面 之上緣部2卜形成於下觀斜面⑽之下緣部23、及橫㈣ 底面…全體於縱向上形权巾間緣部22構成。 又’如第5圖所示，凹部2〇具有平坦之凹部底面％，凹 部底面26由在橫方向延伸之長方形，及具有與該長方形下 側長邊共用之上底之向下等腰梯形構成。如由第5圖可知， 凹部底面鱗之等腰梯形部份進入溝底面^之區域。又， 凹部底面26可為與第5圖所示之形狀不同之形狀，但最好大 8 201116462 到足以收容人手指之第一關節。 在第5圖中，凹部20之下緣部23向下方彎曲成凸狀。而 且，如由第5圖可知，下緣部23比上緣部21大很多，結果， 下緣部23之曲率半徑比上緣部21之曲率半徑小很多。由於 下緣部23呈如此之形狀，人之手指由本體部12之外面通過 下緣部23，可輕易地被收容於凹部20。 如由第4圖及第5圖可知，凹部20之下緣部23藉互相鄰 接之第一及第二C字形狀曲面33、34連結於凹部底面26。由 下緣部23延伸之第一C字形狀曲面33之兩端部連結於連結 中間緣部22與凹部底面26之傾斜面32，鄰接於凹部底面26 之第二C字形狀曲面34未連結於傾斜面32。又，第二C字形 狀曲面34具有於橫方向部份地延伸之2個肋部35、36。藉該 等肋部35、36可於橫方向補強瓶型容器10之凹部20。此外， 該等肋部35、36達成相對於人之手指止滑之目的。 凹部20之上緣部21藉上面31連結於凹部底面26，在第5 圖中，凹部20之上緣部21及上面31向上方彎曲成凸狀。上 緣部21及上面31等相對腰部15大致平行延伸時，當拿起瓶 型容器10時，人之手指可能會陷入上緣部21及上面31等。 相對於此，在上緣部21及上面31向上方彎曲成凸狀之本發 明中，人之手指不會陷入上緣部21及上面31。而且，如由 第5圖可知，凹部20之橫方向中央部向最上方彎曲成凸狀。 第5圖中之凹部20以後述之凹部之橫方向距離D3為弦之長 度，描畫成圓弧狀，但只要凹部20之橫方向中央部成為最 上方，在其中央部以外處亦可包含成為直線狀之部份。 201116462 第6圖是沿第2圖所示之實施型態之瓶型容器之線A _ A 觀看的縱截面圖’第7圖是第6圖所示之凹部之縱截面圖。 特別地，如由第7圖可知，上面31在凹部底面26之附近，向 、’i谷器1 〇之内側彎曲成凸狀。上面3 1可由至少一個曲面 形成，且亦可由多數平坦面形成。 由於凹部20為如此之形狀及尺寸，故人之手指握持拿 起瓶型容器10時，收容於凹部20之手指前端變成扣在上面 31與凹部底面26之間的彎曲部份上。因此，即使填充飲料， 瓶型容器10為重時’手指前端亦不容易由凹部2〇滑出。因 此’在本發明中，可簡單地拿起瓶型容器10。 此外，由於一對凹部2〇互相對向地形成，故可將不同 之手指’例如大拇指及中指插入各個凹部2〇。因此，在本 實施型態中，可容易且確實地握持瓶型容器1〇。 而且，在本實施型態中，凹部20之深度（相當於腰部15 與凹部底面26間之相對於凹部底面26垂直之距離）比較 沬。凹部20之各個深度D1為5mm至7mm，最好為6mm。深 度D1小於5mm時，手指之前端變成難以扣在上面31與凹部 底面26間之彎曲部份上。另一方面，深度D1大於7mm時， 手指之前端難以到達上面31與凹部底面2 6間之彎曲部份。 又，凹部20之橫方向距離D3為54mm至62mm，最好為58mm。 由於凹部20為如此之尺寸，故握持瓶型容器10時，人 之大拇指或中指中之至少一者之第一關節被充分地收容於 凹部20。此外，藉人之大拇指及中指推壓凹部20之各個凹 部底面26時，大拇指或中指中之至少一者之中心軸線變成 10 201116462 在凹部20内中比本體部12之外面更位於内側。結果，可將 大拇指或中指確實地扣在凹部20之上面31。 又’令包含腰部15之溝底面15c之區域之橫戴面之短邊 間的距離為D2時，距離D2為67mm至74mm，最好為71mm。 人在手之大拇指及大拇指以外之手指自然地打開的狀態 下，握持物時，大多感到容易握持該物。因此，當距離D2 小於67mm時，由於感到以狹小寬度不易握持，在手指前端 施加強大力量，故當瓶型容器10之蓋被取下時，容易使瓶 型容器10内之液體由口部11流出。另一方面，當距離D2大 於74mm時，感到以大寬度不易握持，同樣地容易使瓶型容 器10内之液體由口部11流出。而且，2個凹部之合計深度 (D1+D2)對距離D2之比為大約0.16，該比最好為〇. 13至 0.20。在如此情形下，可更適切地握持瓶型容器1〇。 此外，如參照第4圖可知，瓶型容器10之本體部下方部 份45之橫截面呈大略矩形狀，其四個角部19形成為圓弧， 本體部上方部份40之橫截面亦相同。在本發明中，包含腰 部15之溝底面15c之區域之橫截面亦呈同樣之大略矩形 狀，其四個角部16亦形成為圓弧。 第8圖是第1圖所示之實施蜇態之瓶型容器的側面圖。 在第8圖中，人為了握持瓶型容器丨〇時，人之2個手指，例 如大拇指及中指，朝第8圖之紙面的貫通方向插入腰部15之 互相對向部份。在本實施型態中’腰部15之縱向之尺寸為 41.9mm且比較大，又，腰部15形成於本體部12之外周面全 體，此外，參照第5圖，如前所述，腰部15為包含上側傾斜 11 201116462 面15a及下側傾斜面15b之構造。因此，上側傾斜面15a及下 側傾斜面15b達成可說是引導的目的’前述人之2個手指被 引導至溝底面15c之外周。 又，在第4圖中，顯示通過本體部12之橫截面之2個長 邊之中心的線A1。該線A1與互相連接對向之2個凹部2〇中 心的線是共通的。配置於線A1上之2個點ci、C2位於溝底 面15c之周方向延長線與線A1的交點。如第4圖所示，由其 中一點C1通過溝底面15c之延長線與溝底面15c之一部份延 伸至另一點C2之周方向距離D4為140mm至165mm，最好為 150mm至156mm。該周方向距離D4比140mm短時，手指長 的人握持瓶型容器10時，手指之前端將會越過凹部20。又， 周方向距離D4比165mm長時，手指短的人握持瓶型容器1〇 時，手指之前端無法到達凹部20之上面31的彎曲部。相對 於此，周方向距離D4在140mm至165mm之範圍時，不論是 手指長之人或手指短之人，均可容易地握持瓶型容器10。 又，當由大拇指及食指側觀看人的手時，人的手通常 呈大略C字形狀。距離D2尺寸被決定成使人的手不品要將 手指過度地張開。由於容器10之腰部15之溝底面15ct四個 角部16之曲率半徑比較大，所以容器10符合大略c字形之人 的手。因此，握持瓶型容器10時，人不需過度地張開手指。 此外，腰部15之溝底面15c之四個角部16之曲率半徑為 24mm至34mm，最好為28mm至30mm。 人之2個手指插入腰部15時，人之2個手指，例如大拇 指及中指，該等指叉及相關之手掌的部份正好適合腰部15 12 201116462 及上側傾斜面15a。藉此，人之手指前端可到達凹部2〇之上 面31之％曲部。因此’如果由此狀態，使人的手上升，則 瓶型谷器10被人之2個手指，例如大拇指及中指，該等指又 及相關之手掌的部份支持。因此’拿起瓶型容器1〇時，不 需要以強大力量握持瓶型容器10。因此，可容易地拿起瓶 型容器10。 此外，由於在手指之前端不需要施加強大力量，故例 如’即使取下瓶型容器10之蓋時，瓶型容器10内之液體亦 不會由口部11流出。因此，可穩定拿起、搬運瓶型容器丨〇。 在此，參照第1圖、第2圖及第6圖時，本體部12之本體 部上方部份40形成有於周方向延伸之多數溝41，本體部下 方部份45形成有於周方向延伸之多數溝46。該等溝41、46 達成於瓶型容器10施加縱向力時，使瓶型容器1〇之本體部 12於縱向彈性變形之目的。 通常’為了在本體部上方部份40貼上商品標籤（圖未 示）’以良好地看見商品標籤（圖未示），在本體部上方部份 40之溝41設置縱肋等時’僅使本體部12之本體部下方部份 45彈性變形。 又’如第6圖所示，肩部13與本體部12間之區域XI由圓 弧形成，形成於本體部下方部份45之溝46與本體部下方部 份45之間的區域χ3亦同樣地由圓弧形成。此外，第6圖中顯 示於本體部下方部份45中由上方算起位於第二個之溝46作 為區域X3之代表，但本體部下方部份45中之其他溝46亦為 同樣者。又’如再參照第5圖可知，腰部15之下側傾斜面15b a 13 201116462 與本體部下方部份45之間的區域X2亦由圓弧形成。 如由第6圖可知，在區域XI中，由側面看瓶型容器10 之曲率半徑R1比較大，但是比肩部13本身之曲率半徑小。 相同地，如由第2圖可知，在區域XI中，由正面觀看瓶型容 器10之曲率半徑R1’亦比較大，但是比肩部13之曲率半徑 小。此外，曲率半徑R1亦比區域X3中之曲率半徑R3小，但 是比區域X2中之曲率半控R2小。又，如比較第5圖與第6圖 可知，區域X2中之曲率半徑R2比區域χ3中之曲率半徑R3 大。再者，由侧面觀看之曲率半徑尺丨是尺⑺至R28，最好是 R16至R2〇。由正面觀看之曲率半徑R1，是Rl〇至R26，最好 是R14至R18。該等曲率半徑ri、r〗，大於前述值時，於縱 向施加力量至瓿型容器10時，瓶型容器1〇之肩部13將輕易 地塑性變形。 如前所述，瓶型容器10於其搬送時裝滿瓦楞紙箱（圖未 示），再依序堆起多數瓦楞紙箱。此時，於縱向施加非常強 大之力量至各個瓶型容器10。 … -. 叫丁丁促八丄、Κ1’比曲率半徑R2、 R3大’但是比肩和本身之曲率半則、❹因此可說 是肩部U成為接近容器10之轴線方向立起之狀態。即，在 ，實施型態中’由於使曲率半徑R1、Ri,比肩部此曲率半 徑小，故肩部13相對於水平面角 ^ , , L 心丹復嘁大。因此，即於縱 向施加非常強大之力量 邱削至瓶型令益10時，瓶型容器10之肩 部13及腰部15亦幾乎 U栌如 “所％加之力大部份筆直地傳 至本體部下方部份45。因此，力| 在本貫施型態中，當施加縱 14 201116462 向力時，瓶型容器10之比腰部15更位於上方之部份大致均 等地沈降，本體部下方部份45主要地彈性變形。即，在本 實施型態中，即使於縱向施加力至瓶型容器10，肩部13及/ 或腰部15亦不會朝斜方向彎曲。因此，可防止肩部13及/或 腰部15因塑性變形而破損。 又，特別地，如由第1圖等可知，瓶型容器10之肩部13 橫跨其周方向全體是平滑的，未形成隆起部等。因此，即 使於瓶型容器10施加縱向之力時，亦不會有應力集中於如 此之隆起部。因此，亦沒有如此隆起部塑性變形。因此， 在本實施型態中，可防止瓶型容器10之肩部13塑性變形。 此外，在本實施型態中，以瓶型容器10為由合成樹脂 形成者說明，但是，瓶型容器10亦可由其他材料，例如玻 璃形成。 I：圖式簡單說明3 第1圖是依據本發明之一個實施型態之瓶型容器的立 體圖。 第2圖是第1圖所示之實施型態之瓶型容器的正面圖。 第3圖是第1圖所示之實施型態之瓶型容器的底面圖。 第4圖是沿第2圖所示之實施型態之瓶型容器之線B-B 觀看的橫截面圖。 第5圖是第1圖所示之實施型態之瓶型容器的正面部份 放大圖。 第6圖是沿第2圖所示之實施型態之瓶型容器之線A-A 觀看的縱截面圖。 15 201116462 第7圖是第6圖所示之凹部之縱截面圖。 第8圖是第1圖所示之實施型態之瓶型容器的側面圖。 【主要元件符號說明】 10...瓶型容器 32...傾斜面 11"· 口部 33…第一 C字形狀曲面 12...本體部 34...第二C字形狀曲面 13...肩部 35,36...肋部 14...底部 40...本體部上方部份 14a...底部溝 41".溝 15...腰部 45...本體部下方部份 15a...上側傾斜面 46…溝 15b...下側傾斜面 A1.·.線 15c...溝底面 C0…中心線 16...角部 C1，C2...點 18...圓形凹孔 D1...深度 19...角部 D2...距離 20...凹部 D3...凹部之橫方向距離 21...上緣部 D4...周方向距離 22...中間緣部 R1,R1'，R2，R3.·.曲率半徑 23.. .下緣部 26.. .凹部底面 X1，X2，X3.._ 區域 31...上面 16BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bottle-shaped container for filling a beverage, for example, a bottle-shaped container made of synthetic resin. L·^tr ~Ji Background of the Invention In order to fill various beverages, bottle type containers, such as bottle type containers made of synthetic resin, are widely used. The cross-section of the bottle-shaped containers is mostly rectangular in order to be easily stored or transported to a refrigerator or the like. The bottle type container has a large size of about 2 liters, and such a large bottle type container sometimes cannot hold the body portion sufficiently by a human hand. Therefore, in recent years, in order to easily hold the bottle type container, it is common practice to form the body portion of the container at the waist portion, that is, a wide groove extending in the circumferential direction (see Patent Document 1). PRIOR ART DOCUMENT Patent Document 1 Patent No. 3059975 [Invention Summary] SUMMARY OF THE INVENTION Problem to be Solved by the Invention However, when a liquid is filled in a bottle type container, particularly a 2 liter bottle type container, the bottle type container becomes equivalent weight. Therefore, when picking up such a bottle type container, one must hold the body portion of the bottle type container with a very strong force. 201116462 The hand of the person's hand, such as the thumb and the four fingers facing it, such as the index finger, the middle finger, the ring finger or the little finger, are opened to each other, and the human hand does not produce high grip strength. In order to produce a high grip force, it must be in a position suitable for this... In general, such a posture is a person's big plum finger and a posture in which the four fingers that are opposite to each other are separated from each other only one = head ^ right distance. In the left and right, when picking up the bottle-filled container filled with liquid, the hand that T enters is in the above-mentioned posture, the thumb and the four fingers that are opposite to each other are divided into the other side, and the waist is inserted into the side of the bottle-shaped container. The finger holds and holds the bottle type container with the power of strong venting. Here, the hand of the person viewed from the side of the thumb and forefinger is generally in the shape of a large C. However, when the cross section of the body portion of the bottle type container is rectangular, the cross section of the portion is also the same as the cross section of the body portion, and the waist and the four fingers opposed thereto are partially opened by the waist of the rectangle. Therefore, the thumb method properly holds the bottle type container. Also, 彳f produces nothing. When the container is creeped by the finger, the finger and the related palm portion are not in contact with the waist, and the temple picks up the container. Moreover, since the strong force is mainly generated by the fingers, the burden imposed on the fingers of the human hand is very large. In addition, when the cap is removed in a strong amount when the cap is removed, the liquid in the vial may also flow out. Therefore, it is hoped that when picking up a bottle-shaped container filled with a beverage, the U does not have a strong force to hold the container. The present invention has been made in view of such circumstances, and aims to provide a bottle type container which is quickly picked up without being held by a strong force. In order to achieve the above object, in accordance with a first aspect of the invention, a bottle-shaped container having a mouth portion, a body portion, a shoulder portion connecting the mouth portion and the body portion, and a lower end portion of the body portion is provided a bottom portion, wherein the waist portion extends over the entire circumference of the main body portion, the waist portion includes an upper and lower inclined portion inclined upward from the main body portion, and a groove bottom surface located between the two inclined portions, wherein the waist portion is The cross section of the bottom surface of the groove has four corners formed by circular arcs. That is, in the first aspect of the invention, since the corner portion of the cross section of the waist portion is an arc, and the inclined surface is included in the entire waist portion, the fingers of the person facing each other, such as the thumb and the four fingers opposed thereto, the fingers The fork and the part of the palm of the hand are suitable for the waist and the inclined surface above. Therefore, by inserting the person's opposite finger along the waist and then raising the hand, it is possible to easily pick up the bottle type container without holding it with strong force. According to a second aspect of the invention, in the first aspect of the invention, the cross section of the main body portion has four corner portions formed by an arc, and the radius of curvature of the corner portion of the main body portion is equal to or larger than a radius of curvature of the corner portion of the waist portion. That is, in the second invention, since the two fingers of the person, for example, the thumb and the palm portion between the thumb and the middle finger are more suitable for the bottom surface of the waist groove and the inclined surface above, the human hand can be more natural. Hold the bottle container in posture. According to a third aspect of the invention, in the first or second aspect of the invention, at least one of the recessed portions formed in the region of the waist portion is further provided, and one end portion of the corner portion of the waist portion is connected to the recessed portion. That is, in the third invention, since the long side of the cross section of the waist portion does not have a linear portion, the two fingers of the person and the portion of the palm associated with the fingers 5 201116462 can hold the bottle more easily. Type container. According to a fourth aspect of the invention, in the first aspect of the invention, the two concave portions facing each other are formed, and a circumferential distance between a center of the concave portion and a center of the concave portion opposed thereto is 140 mm to 165 mm. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a bottle type container according to an embodiment of the present invention. Fig. 2 is a front elevational view of the bottle type container of the embodiment shown in Fig. 1. Fig. 3 is a bottom plan view of the bottle type container of the embodiment shown in Fig. 1. Fig. 4 is a cross-sectional view, taken along line B - B of the bottle type container of the embodiment shown in Fig. 2. Fig. 5 is an enlarged plan view showing the front portion of the bottle type container of the embodiment shown in Fig. 1. Fig. 6 is a longitudinal sectional view taken along line A-A of the bottle type container of the embodiment shown in Fig. 2. Fig. 7 is a longitudinal sectional view of the concave portion shown in Fig. 6. Fig. 8 is a side view showing the bottle type container of the embodiment shown in Fig. 1. [Embodiment] 1 Mode for Carrying Out the Invention Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following figures, the same components are given the same reference numerals. For ease of understanding, the scales are appropriately changed for the scales. Fig. 1 is a perspective view of a bottle type container according to an embodiment of the present invention, and Fig. 2 is a front view of a bottle type container of the embodiment shown in Fig. 1 201116462. The bottle type container ι shown in the drawings is formed of a synthetic resin such as polyethylene terephthalate and has a capacity of about 2 liters. The bottle container 10 is formed by blow molding a preform and biaxially extending. Thus, in accordance with the present invention, the thickness of the bottle damper 10 is relatively small. As shown in FIGS. 1 and 2, the bottle container 10 mainly includes a mouth portion 11 filled with a liquid such as a beverage, a body portion 12 having a substantially rectangular cross section, a mouth portion 11 connecting the mouth portion 11 and the body portion 12, and The bottom portion of the body portion 12 is closed on the side opposite to the mouth portion u. Further, a cover can be attached to the mouth portion 11, but the cover is omitted for the sake of brevity. Fig. 3 is a bottom view of the bottle type container shown in Fig. 1. In the bottom portion, the center line of the bottle-shaped container 1 is formed (: 0 forms a circular recessed hole 18. Further, most of the bottom groove 14a is radially extended by the circular recessed hole 18 to the outer peripheral surface of the bottle-shaped container 1 (refer to Fig. 2) The circular recessed holes 18 and the bottom groove 14a serve the purpose of reinforcing the bottom portion 14 of the bottle-shaped barn 10. As shown in Figs. 1 and 2, the waist extends toward the circumference of the body portion 12. 4 15 is formed at a center position in the longitudinal direction of the main body portion 12. As shown in Fig. 2, the waist portion 15 is in the form of a wide groove, and extends from the upper portion 4 〇 of the main body portion to the upper side inclined surface 15a and from below the main body portion. The portion 45 extends the lower inclined surface 15b and the groove bottom surface 15c connecting the upper inclined surface 15a and the lower inclined surface i5b. By the waist portion 15, the body portion 12 is divided into the upper portion 40 and the body of the body portion. The lower portion 45. Fig. 4 is a cross-sectional view taken along line B_B of the bottle container shown in Fig. 2. As shown in Fig. 4, the cross-sectional shape of the region including the groove bottom surface 15c of the waist portion 15 is also It is roughly rectangular. 7 201116462 Figure 5 is a partial enlarged view of the bottle type container of this embodiment. As can be seen from Fig. 5, the upper edge and the lower edge of the upper inclined surface 15a and the lower inclined surface 15b extend in the horizontal direction. Further, the groove bottom surface 15c of the waist portion 15 is perpendicular to the bottom surface of the bottle container 10. Waist 15 The height of the entire longitudinal direction is 41.9 mm, and the longitudinal height of the bottom surface 15C of the waist portion 15 is only 7 mm. Therefore, the thumb and the four fingers opposite thereto, such as the index finger, the middle finger, the ring finger or the little finger, and the fingers The fork and the portion of the associated palm are in close contact with the waist portion 15. Further, as shown in the figure, the lower side inclined surface 15b of the waist portion 15 is much larger than the upper side inclined surface 15a, and the lower side inclined surface 15b is formed outward by a convex curved surface. Further, as can be seen from Fig. 5, in the front side of the bottle-shaped container 1, the concave portion 2 is formed in the region of the waist portion 15. The concave portion 2A, as can be seen from Fig. 4, is also mutually yed in the bottle. Further, the concave portion may be formed above or below the waist portion 15. In Fig. 5, the upper end and the lower end of the concave portion 2G are respectively passed over the 'bottom surface in the longitudinal direction of the bottle-shaped container 10, respectively. 15e, partially extending to the upper inclined surface... and, the roll In addition, the edge portion 15b is formed on the upper edge portion 2 of the upper inclined surface, and is formed on the lower edge portion 23 of the lower inclined surface (10) and the bottom surface of the lower (four) surface. Further, as shown in Fig. 5, the concave portion 2 has a flat bottom portion % of the concave portion, and the concave bottom surface 26 has a rectangular shape extending in the lateral direction and has a downward isosceles which shares the upper bottom with the long side of the lower side of the rectangular portion. As shown in Fig. 5, the isosceles trapezoidal portion of the bottom surface of the recess enters the area of the bottom surface of the groove. Further, the bottom surface 26 of the recess may have a shape different from that shown in Fig. 5, but preferably 8 201116462 is enough to accommodate the first joint of a person's finger. In Fig. 5, the lower edge portion 23 of the recess 20 is curved downward in a convex shape. Further, as can be seen from Fig. 5, the lower edge portion 23 is much larger than the upper edge portion 21, and as a result, the radius of curvature of the lower edge portion 23 is much smaller than the radius of curvature of the upper edge portion 21. Since the lower edge portion 23 has such a shape, the human finger can be easily accommodated in the concave portion 20 through the lower edge portion 23 from the outer surface of the main body portion 12. As can be seen from Figs. 4 and 5, the lower edge portion 23 of the concave portion 20 is coupled to the bottom surface 26 of the concave portion by the first and second C-shaped curved surfaces 33, 34 adjacent to each other. Both end portions of the first C-shaped curved surface 33 extending from the lower edge portion 23 are coupled to the inclined surface 32 connecting the intermediate edge portion 22 and the concave portion bottom surface 26, and the second C-shaped curved surface 34 adjacent to the concave portion bottom surface 26 is not connected to Inclined surface 32. Further, the second C-shaped curved surface 34 has two ribs 35, 36 extending partially in the lateral direction. By the ribs 35, 36, the recess 20 of the bottle container 10 can be reinforced in the lateral direction. In addition, the ribs 35, 36 achieve the purpose of slipping with respect to the fingers of a person. The upper edge portion 21 of the concave portion 20 is coupled to the bottom surface 26 of the concave portion by the upper surface 31. In the fifth embodiment, the upper edge portion 21 and the upper surface portion 31 of the concave portion 20 are curved upward in a convex shape. When the upper edge portion 21 and the upper surface portion 31 extend substantially in parallel with respect to the waist portion 15, when the bottle container 10 is picked up, a human finger may fall into the upper edge portion 21, the upper surface 31, and the like. On the other hand, in the present invention in which the upper edge portion 21 and the upper surface 31 are curved upward in a convex shape, the human finger does not fall into the upper edge portion 21 and the upper surface 31. Further, as is apparent from Fig. 5, the central portion of the concave portion 20 in the lateral direction is curved convexly at the uppermost portion. In the recessed portion 20, the distance D3 in the lateral direction of the recessed portion, which will be described later, is the length of the chord, and is drawn in an arc shape. However, the central portion of the recessed portion 20 in the lateral direction may be the uppermost portion, and may be included in the center portion of the recessed portion 20 Straight part. 201116462 Fig. 6 is a longitudinal sectional view taken along line A_A of the bottle type container of the embodiment shown in Fig. 2. Fig. 7 is a longitudinal sectional view of the concave portion shown in Fig. 6. In particular, as can be seen from Fig. 7, the upper surface 31 is curved in a convex shape toward the inner side of the 'i-barr 1' in the vicinity of the bottom surface 26 of the concave portion. The upper surface 31 may be formed of at least one curved surface and may also be formed by a plurality of flat surfaces. Since the recessed portion 20 has such a shape and size, when the human finger holds the bottle-shaped container 10, the front end of the finger received in the concave portion 20 becomes a bent portion between the upper surface 31 and the bottom surface 26 of the concave portion. Therefore, even if the bottle-shaped container 10 is heavy when the beverage is filled, the front end of the finger is not easily slid out by the concave portion 2〇. Therefore, in the present invention, the bottle type container 10 can be simply picked up. Further, since the pair of recessed portions 2 are formed opposite to each other, different fingers such as a thumb and a middle finger can be inserted into the respective recessed portions 2''. Therefore, in the present embodiment, the bottle type container 1 can be easily and surely held. Further, in the present embodiment, the depth of the concave portion 20 (corresponding to the distance between the waist portion 15 and the bottom surface 26 of the concave portion perpendicular to the bottom surface 26 of the concave portion) is relatively high. Each depth D1 of the recess 20 is 5 mm to 7 mm, preferably 6 mm. When the depth D1 is less than 5 mm, the front end of the finger becomes difficult to buckle on the curved portion between the upper surface 31 and the bottom surface 26 of the concave portion. On the other hand, when the depth D1 is larger than 7 mm, it is difficult for the front end of the finger to reach the curved portion between the upper surface 31 and the bottom surface 26 of the concave portion. Further, the lateral direction distance D3 of the concave portion 20 is 54 mm to 62 mm, preferably 58 mm. Since the recess 20 is of such a size, when the bottle container 10 is held, the first joint of at least one of the person's thumb or middle finger is sufficiently accommodated in the recess 20. Further, when the thumb and the middle finger of the person press the bottom surface 26 of each recess of the recess 20, the center axis of at least one of the thumb or the middle finger becomes 10 201116462 which is located inside the recess 20 in the inner side than the outer surface of the body portion 12. As a result, the thumb or the middle finger can be surely fastened to the upper surface 31 of the recess 20. Further, when the distance between the short sides of the transverse wear surface including the region of the groove bottom surface 15c of the waist portion 15 is D2, the distance D2 is 67 mm to 74 mm, preferably 71 mm. When the finger of the hand and the finger other than the thumb are naturally opened, the person feels that it is easy to hold the object when holding the object. Therefore, when the distance D2 is less than 67 mm, since it is difficult to hold in a narrow width and exerts a strong force on the tip end of the finger, when the lid of the bottle type container 10 is removed, it is easy to make the liquid in the bottle type container 10 from the mouth. 11 outflow. On the other hand, when the distance D2 is larger than 74 mm, it is felt that it is difficult to hold with a large width, and similarly, the liquid in the bottle-shaped container 10 is easily discharged from the mouth portion 11. Further, the ratio of the total depth (D1 + D2) of the two concave portions to the distance D2 is about 0.16, and the ratio is preferably 〇13 to 0.20. In this case, the bottle type container 1 can be more appropriately held. Further, as can be seen from Fig. 4, the lower portion 45 of the body portion of the bottle-shaped container 10 has a substantially rectangular cross section, and the four corner portions 19 are formed in a circular arc, and the upper portion 40 of the main body portion has the same cross section. . In the present invention, the cross section of the region including the groove bottom surface 15c of the waist portion 15 is also substantially rectangular in shape, and the four corner portions 16 are also formed in a circular arc shape. Fig. 8 is a side view showing the bottle type container of the embodiment shown in Fig. 1. In Fig. 8, in order to hold the bottle container, two fingers of the person, such as the thumb and the middle finger, are inserted into the opposite portions of the waist portion 15 in the direction of the paper surface of Fig. 8. In the present embodiment, the longitudinal dimension of the waist portion 15 is 41.9 mm and relatively large, and the waist portion 15 is formed on the entire outer peripheral surface of the main body portion 12. Further, referring to Fig. 5, the waist portion 15 is included as described above. The structure of the upper side inclined 11 201116462 surface 15a and the lower side inclined surface 15b. Therefore, the upper inclined surface 15a and the lower inclined surface 15b achieve the purpose of guiding. The two fingers of the above-mentioned person are guided to the outer periphery of the groove bottom surface 15c. Further, in Fig. 4, a line A1 passing through the center of the two long sides of the cross section of the body portion 12 is shown. This line A1 is common to the lines connecting the two centers of the two recesses 2 to each other. The two points ci and C2 arranged on the line A1 are located at the intersection of the extension of the circumferential direction of the groove bottom surface 15c and the line A1. As shown in Fig. 4, the circumferential distance D4 from the one point C1 through the extension line of the groove bottom surface 15c and the groove bottom surface 15c to the other point C2 is 140 mm to 165 mm, preferably 150 mm to 156 mm. When the circumferential direction distance D4 is shorter than 140 mm, when the finger-length person holds the bottle-shaped container 10, the front end of the finger will pass over the concave portion 20. Further, when the circumferential direction distance D4 is longer than 165 mm, when the person with a short finger holds the bottle container 1 ,, the front end of the finger cannot reach the curved portion of the upper surface 31 of the concave portion 20. On the other hand, when the circumferential direction distance D4 is in the range of 140 mm to 165 mm, the bottle-shaped container 10 can be easily held regardless of whether the finger is long or the finger is short. Also, when the person's hand is viewed from the thumb and forefinger side, the person's hand is usually in a substantially C shape. The distance D2 size is determined such that the human hand does not have to open the finger excessively. Since the radius of curvature of the four corner portions 16 of the groove bottom surface 15ct of the waist portion 15 of the container 10 is relatively large, the container 10 conforms to the hand of a person having a substantially c-shape. Therefore, when the bottle type container 10 is held, the person does not need to open the finger excessively. Further, the four corner portions 16 of the groove bottom surface 15c of the waist portion 15 have a radius of curvature of 24 mm to 34 mm, preferably 28 mm to 30 mm. When a person's two fingers are inserted into the waist 15, two fingers of the person, such as the big thumb and the middle finger, are suitable for the waist 15 12 201116462 and the upper inclined surface 15a. Thereby, the front end of the finger of the person can reach the % curved portion of the upper surface 31 of the recess 2 . Therefore, if the human hand is raised by this state, the bottle type cereal 10 is supported by two fingers of the person, such as the thumb and the middle finger, and the fingers and the related palms. Therefore, when the bottle type container is picked up, it is not necessary to hold the bottle type container 10 with a strong force. Therefore, the bottle container 10 can be easily picked up. Further, since it is not necessary to apply a strong force at the front end of the finger, for example, even when the lid of the bottle type container 10 is removed, the liquid in the bottle type container 10 does not flow out from the mouth portion 11. Therefore, it is possible to stably pick up and carry the bottle type container. Here, referring to FIG. 1 , FIG. 2 and FIG. 6 , the upper portion 40 of the main body portion of the main body portion 12 is formed with a plurality of grooves 41 extending in the circumferential direction, and the lower portion 45 of the main body portion is formed to extend in the circumferential direction. Most of the grooves 46. The grooves 41, 46 achieve the purpose of elastically deforming the body portion 12 of the bottle container 1 in the longitudinal direction when the longitudinal force is applied to the bottle container 10. Usually, in order to attach a product label (not shown) to the upper portion 40 of the main body portion to see the product label well (not shown), when the vertical rib is set in the groove 41 of the upper portion 40 of the main body portion, The lower portion 45 of the body portion of the body portion 12 is elastically deformed. Further, as shown in Fig. 6, the region XI between the shoulder portion 13 and the main body portion 12 is formed by a circular arc, and the region χ3 formed between the groove 46 of the lower portion 45 of the main body portion and the lower portion 45 of the main body portion is also the same. The ground is formed by an arc. Further, in the lower portion 45 of the main body portion, the second groove 46 is represented as the region X3 from the upper portion, but the other grooves 46 in the lower portion 45 of the main body portion are also the same. Further, as will be further described with reference to Fig. 5, the region X2 between the lower side inclined surface 15b a 13 201116462 of the waist portion 15 and the lower portion 45 of the body portion is also formed by a circular arc. As can be seen from Fig. 6, in the region XI, the radius of curvature R1 of the bottle-shaped container 10 is relatively large when viewed from the side, but is smaller than the radius of curvature of the shoulder portion 13 itself. Similarly, as can be seen from Fig. 2, in the region XI, the radius of curvature R1' of the bottle-shaped container 10 as viewed from the front is also relatively large, but is smaller than the radius of curvature of the shoulder portion 13. Further, the radius of curvature R1 is also smaller than the radius of curvature R3 in the region X3, but smaller than the curvature half R2 in the region X2. Further, as can be seen by comparing Figs. 5 and 6, the radius of curvature R2 in the region X2 is larger than the radius of curvature R3 in the region χ3. Further, the radius of curvature of the side view is from the ruler (7) to R28, preferably R16 to R2. The radius of curvature R1 viewed from the front is R1 R to R26, preferably R14 to R18. When the radius of curvature ri, r is larger than the above value, when the force is applied to the crucible container 10 in the longitudinal direction, the shoulder portion 13 of the bottle container 1 is easily plastically deformed. As described above, the bottle-shaped container 10 carries a full-size corrugated box (not shown) and then stacks up most of the corrugated boxes. At this time, a very strong force is applied to each of the bottle-shaped containers 10 in the longitudinal direction. ... -. It is called Ding Ding, and Κ 1' is larger than the curvature radii R2 and R3, but it is half the curvature of the shoulder and itself. Therefore, it can be said that the shoulder U is in a state of being close to the axis of the container 10. That is, in the embodiment, the radius of curvature R1, Ri is smaller than the radius of the shoulder portion, so that the shoulder portion 13 is larger than the horizontal plane angle ^, L. Therefore, when a very powerful force is applied in the longitudinal direction to the bottle type, the shoulder portion 13 and the waist portion 15 of the bottle-shaped container 10 are almost U-like, such as "% of the force is transmitted straight to the body portion. Square portion 45. Therefore, in the present embodiment, when the longitudinal force 14 201116462 is applied, the portion of the bottle container 10 which is located above the waist portion 15 is substantially equally settled, and the lower portion of the body portion 45 is mainly elastically deformed. That is, in the present embodiment, even if a force is applied to the bottle-shaped container 10 in the longitudinal direction, the shoulder portion 13 and/or the waist portion 15 are not bent obliquely. Therefore, the shoulder portion 13 can be prevented. In addition, as is apparent from Fig. 1 and the like, the shoulder portion 13 of the bottle container 10 is smooth across the entire circumferential direction, and no bulging portion or the like is formed. When the longitudinal force is applied to the bottle-shaped container 10, no stress is concentrated on such a ridge. Therefore, there is no such plastic deformation of the ridge portion. Therefore, in the present embodiment, the shoulder of the bottle-shaped container 10 can be prevented. The portion 13 is plastically deformed. Further, in the present embodiment The bottle type container 10 is described by a synthetic resin. However, the bottle type container 10 may be formed of other materials such as glass. I: Brief description of the drawing 3 Fig. 1 is a bottle according to an embodiment of the present invention. Fig. 2 is a front view of the bottle type container of the embodiment shown in Fig. 1. Fig. 3 is a bottom view of the bottle type container of the embodiment shown in Fig. 1. Fig. 4 It is a cross-sectional view taken along the line BB of the bottle type container of the embodiment shown in Fig. 2. Fig. 5 is an enlarged view of the front part of the bottle type container of the embodiment shown in Fig. 1. The figure is a longitudinal cross-sectional view taken along the line AA of the bottle type container of the embodiment shown in Fig. 2. 15 201116462 Fig. 7 is a longitudinal sectional view of the concave portion shown in Fig. 6. Fig. 8 is a first view Side view of the bottle type container of the embodiment shown. [Explanation of main component symbols] 10...Bottle type container 32...inclined surface 11"·mouth portion 33...first C-shaped curved surface 12... Main body portion 34...second C-shaped curved surface 13...shoulder portion 35,36...rib portion 14...bottom portion 40...the upper portion of the body portion 14a...bottom Part groove 41 " groove 15... waist portion 45... body portion lower portion 15a... upper side inclined surface 46... groove 15b... lower side inclined surface A1.·. line 15c... groove bottom surface C0 ... center line 16...corner portion C1, C2...point 18...circular recessed hole D1...depth 19...corner portion D2...distance 20...recessed portion D3...recessed portion The lateral direction distance 21...the upper edge portion D4...the circumferential direction distance 22...the intermediate edge portion R1, R1', R2, R3.·. the radius of curvature 23.. the lower edge portion 26.. Bottom surface X1, X2, X3.._ area 31... above 16