JPS6328784B2 - - Google Patents
Info
- Publication number
- JPS6328784B2 JPS6328784B2 JP6412077A JP6412077A JPS6328784B2 JP S6328784 B2 JPS6328784 B2 JP S6328784B2 JP 6412077 A JP6412077 A JP 6412077A JP 6412077 A JP6412077 A JP 6412077A JP S6328784 B2 JPS6328784 B2 JP S6328784B2
- Authority
- JP
- Japan
- Prior art keywords
- bottom wall
- bottle
- cap
- mold
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 16
- 230000037431 insertion Effects 0.000 claims description 10
- 238000003780 insertion Methods 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Containers Having Bodies Formed In One Piece (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は二軸延伸させたポリエステル製壜およ
びその製造装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a biaxially stretched polyester bottle and an apparatus for producing the same.
近時公害防止の観点から、即ち従来壜製造等に
用いられた合成樹脂材と異り溶剤等の有害物の滲
出がなく、又廃棄による燃焼時に有害ガスが出る
ようなことがないこと等の理由によつて二軸延伸
させたポリエステル製壜が注目されている。その
二軸延伸によつて壜は肉薄となし得るから材料が
節減できると共に強度も又高まることが知られて
いるが、一般にその延伸は壜胴部において行い易
く、壜底壁の特に中心部分においては行い難いも
のであつた。このため該製品たる壜を誤つて落し
たような場合には底壁が損傷されることとなる。 In recent years, from the perspective of pollution prevention, unlike synthetic resin materials conventionally used for bottle manufacturing, there is no leakage of harmful substances such as solvents, and no harmful gases are released when burned after disposal. Biaxially stretched polyester bottles are attracting attention for several reasons. It is known that by biaxial stretching, the bottle can be made thinner, which saves material and also increases strength, but in general, the stretching is easier to perform in the body of the bottle, especially in the center of the bottom wall of the bottle. was difficult to do. Therefore, if the product bottle is accidentally dropped, the bottom wall will be damaged.
本発明に係るポリエステル製壜はその延伸困難
な底壁特にその中心部を延伸させて強度を高めた
ものであり、又その壜の製造に使用される装置に
係る。 The polyester bottle according to the present invention has its bottom wall, which is difficult to stretch, especially its center part, stretched to increase its strength, and it also relates to an apparatus used for manufacturing the bottle.
以下図面について説明すると、１は本発明に係
るポリエステル製の壜の全体を示す。２は外面に
キヤツプ螺合用のねじ３を有する口頚部、４は胴
部、５は底壁である。その胴部および底壁は後述
のように二軸延伸させて形成させる。 Referring to the drawings below, reference numeral 1 shows the entire polyester bottle according to the present invention. Reference numeral 2 designates a mouth and neck portion having a screw 3 for screwing the cap on its outer surface, 4 a body portion, and 5 a bottom wall. The body and bottom wall are formed by biaxial stretching as described below.
その底壁５は、帽状に壜内方へ***させ、かつ
底壁周縁部から帽状部の頂部外周まで、複数のリ
ブ状張し部５ａとリブ状凹部とを交互に位置させ
て形成する。該リブ状張出し部とリブ状凹部とは
上下両面に形成されるもので、壜内方からみての
リブ状張出し部は、壜下方からみてのリブ状凹部
に、又壜内方からみてのリブ状凹部は壜下方から
みてのリブ状張出し部にそれぞれ形成させる。従
つて該帽状部分の横断面形状は花形模様状に形成
されることとなる。又帽状部の頂部は、該頂部の
外周部と中心部との間を押下げ管により低く形成
すると共にその中心部６を押上げ棒により棒状部
他部に対して更に延伸させて形成する。 The bottom wall 5 is formed by protruding inwardly into the bottle in a cap shape, and by alternately positioning a plurality of rib-like extensions 5a and rib-like recesses from the periphery of the bottom wall to the outer periphery of the top of the cap. do. The rib-like overhang and the rib-like recess are formed on both the top and bottom surfaces, and the rib-like overhang when seen from inside the bottle is similar to the rib-like recess when seen from below the bottle, and the rib-like recess when seen from inside the bottle. The shaped recesses are respectively formed in the rib-like protruding parts when viewed from below the bottle. Therefore, the cross-sectional shape of the cap-shaped portion is formed in a flower-shaped pattern. Moreover, the top of the cap-shaped part is formed by forming a lower part between the outer periphery and the center of the top by a push-down tube, and further extending the center part 6 with respect to the other part of the bar-shaped part by a push-up rod. .
上記壜の形成は第３図、第４図、第５図が示す
次のような装置によつて形成する。１１は壜成形
用のキヤビテイ１２を有する金型である。そのキ
ヤビテイの底壁形成面１３はその中央部を内方へ
高く***させると共にその斜面にはその底壁の周
縁部から中央部へ複数の凹溝部１３ａと***部１
３ｂとを交互にほぼ等間隔に形成させる。又その
頂部たる底壁形成面中心からは垂直下方へ挿通孔
を穿設させておき、該挿通孔内へは上下摺動可能
に第２延伸ロツド１４を下方から挿入させる。 The above-mentioned bottle is formed by the following apparatus shown in FIGS. 3, 4, and 5. Reference numeral 11 denotes a mold having a cavity 12 for molding a bottle. The bottom wall forming surface 13 of the cavity has a central portion raised inwardly and a plurality of concave grooves 13a and raised portions 1 on the slope from the peripheral edge of the bottom wall to the central portion.
3b are alternately formed at approximately equal intervals. Further, an insertion hole is formed vertically downward from the center of the bottom wall forming surface, which is the top part, and the second stretching rod 14 is inserted from below in a vertically slidable manner into the insertion hole.
金型上方からは圧縮空気用送路３１を有する第
１延伸ロツド３２を上下動自在にキヤビテイ内へ
垂下させる。該ロツドは上記挿通孔よりも大外径
でかつ下端開口の外管３３とその管孔内へ遊挿さ
せた中棒３４とからなり、その外管には適当数の
ノズル孔３５を設けておく。尚上記圧縮空気用送
路３１は中棒外面又は外管内面へ穿設させた縦凹
溝により形成させればよい。 A first stretching rod 32 having a compressed air passage 31 is vertically movably suspended into the cavity from above the mold. The rod consists of an outer tube 33 with a larger outer diameter than the insertion hole and an open bottom end, and a middle rod 34 loosely inserted into the tube hole, and an appropriate number of nozzle holes 35 are provided in the outer tube. put. The compressed air passage 31 may be formed by a vertical groove bored into the outer surface of the inner rod or the inner surface of the outer tube.
第３図が示すように、予め加熱させた管状素材
２０を金型内へセツトさせておき、該管状素材内
へ第１延伸ロツド３２を挿入し押下げて管状素材
を縦軸方向に延伸させる。又管状素材内に圧縮空
気を吹込みして膨張させる。該膨張によりポリエ
ステル製壜が形成され、壜底壁は帽状に壜内方へ
***する。該状態から外管３３を第４図のように
更に押下げして、その下端面と既述挿通孔の上周
縁とが、その間に位置する上記帽状部頂部の外周
部を挟持する状態となし、該状態から第２延伸ロ
ツド１４を押上げすると、該ロツドの上端面が上
記帽状部の中心部分下面を突上げして、第５図が
示すようにその中心部分を外管下端部内へ押込
み、このようにしてその帽状部の中心部は更に延
伸される。 As shown in FIG. 3, a preheated tubular material 20 is set in a mold, and the first stretching rod 32 is inserted into the tubular material and pushed down to stretch the tubular material in the longitudinal direction. . Also, compressed air is blown into the tubular material to expand it. A polyester bottle is formed by the expansion, and the bottom wall of the bottle bulges inward in the shape of a cap. From this state, the outer tube 33 is further pushed down as shown in FIG. 4, so that its lower end surface and the upper circumferential edge of the aforementioned insertion hole sandwich the outer circumferential portion of the top of the cap-shaped portion located therebetween. When the second stretching rod 14 is pushed up from this state, the upper end surface of the rod pushes up the lower surface of the center portion of the cap-shaped portion, and as shown in FIG. In this way, the center of the cap is further stretched.
本発明は上記構成とするものであり、その壜の
胴部および底壁は二軸延伸させてあるから強度が
大である。又底壁５は、帽状に壜内方へ***させ
ると共に、底壁周縁部から帽状部の頂部外周まで
複数のリブ状張出し部５ａ……とリブ状凹部と
を、交互に、かつ帽状部の横断面を花形模様に形
成させて設けたから、帽状に***させたことと、
リブ状張出し部、リブ状凹部を設けたこととで二
重に底壁を延伸できることとなり、かつ該延伸
と、リブ状張出し部および凹部のリブ機能とによ
つて底壁強度を大とすることが出来る。又本来上
記のように予め管状素材を設けておき、これを二
軸延伸させて壜とする場合はその管状素材の底部
外面中央にゲート跡が残り、このため該部での延
伸が不充分となつて壜底壁の強度も不充分となり
易い欠点を有するものであつたが、本発明の場合
はその底壁を帽状に壜内方へ***させたうえ、そ
の帽状部頂部の外周部と中心部との間を押下げ管
により低くしておき、かつその頂部の中心部６を
押上げ棒により押上げて帽状部他部に対して更に
延伸させてあるから上記のような欠点がなく、又
製造装置としては金型の底壁形成面の中央部を内
方へ高く***させて該***部の斜面にはその壜底
壁形成面の周縁部から中央部へ複数の凹溝部１３
ａと***部１３ｂとを交互にほぼ等間隔で形成さ
せたから、既述底壁を有するポリエステル製壜の
成形が容易であり、第１延伸ロツドは外管３３と
該外管内へ郵送させた中棒３４とからなるものと
し、その外管を金型キヤビテイの底壁形成面中心
に穿設された第２延伸ロツド挿通孔よりも大外径
としたから、外管押下げにより外管下端面と挿通
孔上周縁との間でその間に位置する管状素材の底
壁部部分を挟持させることが出来、このような挟
持が可能であるから上記挿通孔内へ嵌合させた第
２延伸ロツドの押上げにより、該ロツド上端面で
帽状部頂部の中心部分を外管下端部内へ押込みし
て該中心部分を延伸させることが出来、上記挟持
を行わなければ第２延伸ロツドの押上げによつて
底壁形成部分全体が押上げられてその中心部分だ
けを延伸することが困難となる筈であるが、この
ようなことがなく、その延伸を確実に行うことが
出来る。装置の構造も簡易であり、廉価に製作す
ることが出来る。 The present invention has the above structure, and since the body and bottom wall of the bottle are biaxially stretched, the bottle has high strength. The bottom wall 5 is raised inward in the shape of a cap, and has a plurality of rib-like protrusions 5a and rib-like recesses alternately extending from the peripheral edge of the bottom wall to the outer periphery of the top of the cap. The cross section of the shaped part was formed into a flower-shaped pattern, so it was raised like a cap.
By providing the rib-like overhanging portion and the rib-like recess, the bottom wall can be stretched twice, and the strength of the bottom wall is increased by the stretching and the rib function of the rib-like overhang and the recess. I can do it. In addition, when a tubular material is originally prepared in advance as described above and then biaxially stretched to make a bottle, a gate mark remains at the center of the bottom outer surface of the tubular material, which may result in insufficient stretching in that area. However, in the case of the present invention, the bottom wall is raised inward in the shape of a cap, and the outer periphery of the top of the cap is The above-mentioned disadvantages arise because the space between the cap and the center is kept low by a push-down tube, and the center 6 at the top is pushed up by a push-up rod to further extend it relative to the rest of the cap-shaped part. Moreover, as a manufacturing device, the center part of the bottom wall forming surface of the mold is raised high inward, and the slope of the raised part has a plurality of grooves extending from the periphery of the bottom wall forming surface to the center part. 13
Since the raised portions 13b and 13b are alternately formed at approximately equal intervals, it is easy to form a polyester bottle having the bottom wall as described above, and the first stretching rod extends between the outer tube 33 and the inner tube inserted into the outer tube. Since the outer tube has a larger outer diameter than the second stretching rod insertion hole drilled in the center of the bottom wall forming surface of the mold cavity, the lower end surface of the outer tube can be pushed down by pressing down the outer tube. The bottom wall portion of the tubular material located therebetween can be held between the upper periphery of the insertion hole and the second stretching rod fitted into the insertion hole. By pushing up, the center part of the top of the cap can be pushed into the lower end of the outer tube with the upper end surface of the rod, and the center part can be stretched. As a result, the entire bottom wall forming portion would be pushed up and it would be difficult to stretch only the central portion thereof, but this does not occur and the stretching can be carried out reliably. The structure of the device is also simple and can be manufactured at low cost.
第１図は本発明に係る壜の断面図、第２図は第
１図−線を矢示方向へみた断面図、第３図は
壜成形のために管状素材を金型内へセツトさせた
状態での断面図、第４図は上記管状素材を膨張さ
せて壜に形成させた状態での断面図、第５図は壜
底壁の中央部外周部分を金型と外管下端とで挟持
させ、かつ底壁中心部を第２延伸ロツド押上げに
より延伸させた状態での断面図である。
１……ポリエステル製壜、５……底壁、５ａ…
…リブ状張出し部、６……底壁中央部、７……底
壁周縁部、１１……金型、１２……キヤビテイ、
１３……キヤビテイの底壁形成面、１３ａ……凹
溝部、１３ｂ……***部、１４……第２延伸ロツ
ド、２０……管状素材、３１……圧縮空気用送
路、３２……第１延伸ロツド、３３……外管、３
４……中棒。
Fig. 1 is a sectional view of a bottle according to the present invention, Fig. 2 is a sectional view taken along the line in Fig. 1 in the direction of the arrow, and Fig. 3 shows a tubular material set in a mold for bottle forming. Fig. 4 is a cross-sectional view of the tubular material expanded to form a bottle, and Fig. 5 is a cross-sectional view of the tubular material expanded to form a bottle, and Fig. 5 shows the outer periphery of the center portion of the bottom wall of the bottle being held between the mold and the lower end of the outer tube. FIG. 4 is a cross-sectional view of the bottom wall in a state in which the center part of the bottom wall is stretched by pushing up a second stretching rod. 1...Polyester bottle, 5...Bottom wall, 5a...
...Rib-shaped overhanging portion, 6...Bottom wall central portion, 7...Bottom wall peripheral portion, 11...Mold, 12...Cavity,
DESCRIPTION OF SYMBOLS 13...Bottom wall forming surface of cavity, 13a...Concave groove part, 13b...Protuberance, 14...Second stretching rod, 20...Tubular material, 31...Compressed air conduit, 32...First Stretching rod, 33...Outer tube, 3
4...Middle stick.
Claims (1)
ル製壜であつて、その底壁を帽状に壜内方へ***
させると共に、該帽状部には、底壁周縁部から帽
状部の頂部外周まで複数のリブ状張出し部とリブ
状凹部とを、交互にかつ帽状部の横断面を花形模
様状に形成させて設け、又上記帽状部の頂部は、
該頂部の外周部と中心部との間を押下げ管により
低く形成すると共に、その中心部を押上げ棒によ
り帽状部他部に対して更に延伸させたことを特徴
とするポリエステル製壜。 ２ 壜成形用キヤビテイを有する金型と、該金型
キヤビテイの壜底壁形成面中心に穿設された挿通
孔内に、金型下方から上下動可能に嵌合させた第
２延伸ロツドと、上記キヤビテイ内へ、金型上方
から上下動可能に垂設された圧縮空気送路付きの
第１延伸ロツドとからなり、上記キヤビテイの壜
底壁形成面は中央部を高く***させると共に該隆
起部の斜面には、壜底壁形成面の周縁部から中央
部へ複数の凹溝部と***部とを交互にほぼ等間隔
で形成させ、上記第１延伸ロツドは、上記挿通孔
よりも大外径でかつ下端開口の外管と、該外管の
管孔内へ遊挿させた中棒とで形成させ、上記金型
内に壜成形用管状素材をセツトさせた状態で第１
延伸ロツドを押下げると上記挿通孔の上周縁と外
管下端面とがその間に位置する管状素材底壁部部
分を挟持し、かつ該挟持状態から第２延伸ロツド
を押上げることで、該ロツド上端面が管状素材底
壁部の中央部分下面を突上げして、その底壁中央
部分を外管下端部内へ押込むことが可能に形成さ
せたことを特徴とするポリエステル製壜の製造装
置。[Scope of Claims] 1. A polyester bottle whose body and bottom wall are biaxially stretched, the bottom wall of which is raised inward in the shape of a cap, and the cap-shaped portion has a peripheral edge of the bottom wall. A plurality of rib-like protruding parts and rib-like recesses are provided alternately from the top to the outer periphery of the cap-shaped part, and the cross section of the cap-shaped part is formed in a flower-shaped pattern, and the top of the cap-shaped part is
A polyester bottle characterized in that the distance between the outer peripheral part of the top part and the center part is formed low by a push-down tube, and the center part is further extended with respect to the other part of the cap-shaped part by a push-up rod. 2. A mold having a cavity for forming a bottle, and a second stretching rod fitted into an insertion hole drilled in the center of the bottle bottom wall forming surface of the mold cavity so as to be movable up and down from below the mold; A first stretching rod with a compressed air passage is vertically movable from above the mold into the cavity, and the bottle bottom wall forming surface of the cavity has a central part raised high and the raised part A plurality of grooves and raised portions are formed alternately at approximately equal intervals from the periphery to the center of the bottom wall forming surface of the bottle, and the first stretching rod has a larger outer diameter than the insertion hole. It is formed by a large outer tube with an open bottom end and a middle rod loosely inserted into the tube hole of the outer tube, and a tubular material for bottle forming is set in the mold.
When the stretching rod is pushed down, the upper peripheral edge of the insertion hole and the lower end surface of the outer tube sandwich the bottom wall portion of the tubular material located therebetween, and by pushing up the second stretching rod from the sandwiched state, the rod An apparatus for manufacturing a polyester bottle, characterized in that the upper end surface is formed to be able to push up the lower surface of the central portion of the bottom wall of the tubular material and push the central portion of the bottom wall into the lower end of the outer tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6412077A JPS53149264A (en) | 1977-06-01 | 1977-06-01 | Apparatus for making polyester bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6412077A JPS53149264A (en) | 1977-06-01 | 1977-06-01 | Apparatus for making polyester bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53149264A JPS53149264A (en) | 1978-12-26 |
| JPS6328784B2 true JPS6328784B2 (en) | 1988-06-09 |
Family
ID=13248879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6412077A Granted JPS53149264A (en) | 1977-06-01 | 1977-06-01 | Apparatus for making polyester bottle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS53149264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007008506A (en) * | 2005-06-29 | 2007-01-18 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625421A (en) * | 1979-08-08 | 1981-03-11 | Yoshino Kogyosho Co Ltd | Obscuring method for bleached part of bottom wall of transparent bottle made of saturated polyester resin produced in manufacturing process |
| JPS5633926A (en) * | 1979-08-27 | 1981-04-04 | Yoshino Kogyosho Co Ltd | Method of eliminating gate mark on bottom wall of biaxially stretched transparent bottle made of saturated polyester |
| JPS5664949A (en) * | 1979-10-22 | 1981-06-02 | Yoshino Kogyosho Co Ltd | Bottle in saturated polyester resin with handle and its manufacture |
| JPS5674438A (en) * | 1979-11-09 | 1981-06-19 | Yoshino Kogyosho Co Ltd | Bottle in saturated polyester resin with grip |
| NL8102376A (en) * | 1980-05-29 | 1981-12-16 | Plm Ab | METHOD AND APPARATUS FOR FORMING A HOLDER |
| JPS57201631A (en) * | 1982-05-24 | 1982-12-10 | Yoshino Kogyosho Co Ltd | Staturated polyester resin made bottle and manufacture thereof |
| JPS5966708U (en) * | 1982-10-25 | 1984-05-04 | 株式会社吉野工業所 | Bottom structure of synthetic resin biaxially stretched blow-molded bottle |
| JPS59118713U (en) * | 1983-02-01 | 1984-08-10 | 三菱樹脂株式会社 | plastic bottle |
| US5927499A (en) * | 1998-05-29 | 1999-07-27 | Colgate-Palmolive Company | Hydrostatic containers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493073A (en) * | 1972-04-28 | 1974-01-11 | ||
| JPS5089470A (en) * | 1973-11-14 | 1975-07-17 | ||
| JPS5089469A (en) * | 1973-11-14 | 1975-07-17 | ||
| JPS5153566A (en) * | 1974-09-24 | 1976-05-12 | Haustrup Plastic As |
-
1977
- 1977-06-01 JP JP6412077A patent/JPS53149264A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493073A (en) * | 1972-04-28 | 1974-01-11 | ||
| JPS5089470A (en) * | 1973-11-14 | 1975-07-17 | ||
| JPS5089469A (en) * | 1973-11-14 | 1975-07-17 | ||
| JPS5153566A (en) * | 1974-09-24 | 1976-05-12 | Haustrup Plastic As |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007008506A (en) * | 2005-06-29 | 2007-01-18 | Yoshino Kogyosho Co Ltd | Synthetic resin bottle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53149264A (en) | 1978-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4082200A (en) | Plastic container with support base, and method of assembly | |
| KR19990071518A (en) | Improved container. | |
| KR870007822A (en) | Hollow synthetic resin container with handle and its molding method | |
| JPS6328784B2 (en) | ||
| AU741453B2 (en) | Wide-mouthed container, such as paint container produced by injection draw blow molding | |
| US8002538B2 (en) | Collapsible core assembly for a molding apparatus | |
| JPS5841056A (en) | Vessel cover | |
| JP6730794B2 (en) | Multiple plastic bottles | |
| KR960011591A (en) | Toner Bottle and Manufacturing Method Thereof | |
| JPS5850576B2 (en) | Stretch blow molding method for synthetic resin bottles with base caps | |
| JP6730824B2 (en) | Polyester resin blow molding multiplex bottle | |
| KR850006332A (en) | Molding method of thin container made of synthetic resin | |
| US4395378A (en) | Method for making an injection stretch blow molded container with an integral tab | |
| US4397629A (en) | Apparatus for drawing mouth-neck portions of synthetic resin bottles | |
| JPS5821372Y2 (en) | Biaxially stretched synthetic resin thin wall bottle | |
| JPS5932296B2 (en) | Method for manufacturing polyester bottles and equipment for manufacturing the same | |
| JPH01170605U (en) | ||
| JPS6311133B2 (en) | ||
| JPH0425296Y2 (en) | ||
| JPS6311218B2 (en) | ||
| JPS6311219B2 (en) | ||
| JP2524264Y2 (en) | Vertical synthetic resin bottle | |
| JPH0212169Y2 (en) | ||
| JPH01164117U (en) | ||
| JPS6335513B2 (en) |