JPH0555393B2 - - Google Patents
Info
- Publication number
- JPH0555393B2 JPH0555393B2 JP9111986A JP9111986A JPH0555393B2 JP H0555393 B2 JPH0555393 B2 JP H0555393B2 JP 9111986 A JP9111986 A JP 9111986A JP 9111986 A JP9111986 A JP 9111986A JP H0555393 B2 JPH0555393 B2 JP H0555393B2
- Authority
- JP
- Japan
- Prior art keywords
- flange
- cup body
- punched
- sheet
- slits
- 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 - Lifetime
Links
- 239000000463 material Substances 0.000 claims description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 6
- 239000000057 synthetic resin Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 description 20
- 238000005520 cutting process Methods 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 12
- 238000000034 method Methods 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 235000011962 puddings Nutrition 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000015243 ice cream Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、易開封性容器に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an easy-to-open container.
易開封性容器は、第１４図、第１５図を参照し
て説明すると、合成樹脂製カツプ体Ａの開口全周
縁に外向きフランジ３を一体に設け、そのカツプ
体Ａ開口をフイルム状蓋材Ｂで被つて、その蓋材
Ｂを前記フランジ３上面全周に接着したものであ
り、第１５図に示すように、蓋材Ｂをフランジ３
から剥して開封する。
The easy-open container will be explained with reference to FIGS. 14 and 15. An outward flange 3 is integrally provided around the entire opening of a synthetic resin cup A, and a film-like lid material is attached to the opening of the cup A. B, and the lid material B is adhered to the entire circumference of the upper surface of the flange 3. As shown in FIG.
Peel it off and open it.
この開封をよりし易くするためには、まず実開
昭53−6737号公報に記載のごとく、フランジ３の
一部を切り目を介して切り折りし、その切片とと
もに蓋材Ｂを引き上げて剥すものがある。ところ
で、コーヒーフレツシユ等の少量容器にあつて
は、小形ゆえに、蓋材Ｂとフランジ３の接着面積
が少ないうえに、積み重ねられることも少なく、
仮に積み重ねられても軽いため、接着強度も高く
必要としない。このため、この技術によつても、
蓋材Ｂを容易に剥すことができる。 In order to make this opening easier, first, as described in Japanese Utility Model Application Publication No. 53-6737, a part of the flange 3 is cut and folded through the cut line, and the cover material B is pulled up and peeled off together with the cut piece. There is. By the way, in the case of small quantity containers such as coffee fresheners, due to their small size, the adhesion area between the lid material B and the flange 3 is small, and they are rarely stacked.
Even if they are stacked, they are light and do not require high adhesive strength. Therefore, even with this technology,
The lid material B can be easily peeled off.
しかしながら、プリン、アイスクリーム等の容
器にあつては、嵩も大きくなるため、前記接着面
積が広くなるうえに、積み重ねられるため、接着
強度を高く必要とする。このため、前記公報記載
の技術をプリン等の大型容器に採用すると、開封
性が著しく低下する。 However, in the case of containers for pudding, ice cream, etc., the volume is large, so the adhesive area becomes large, and since the containers can be stacked, high adhesive strength is required. For this reason, if the technique described in the above-mentioned publication is applied to large containers such as pudding, the unsealability will be significantly reduced.
したがつて、従来では、実開昭52−59140号公
報及び実開昭51−17102号公報に示されるごとく、
フランジ３の一部全周を切り離し、その切り離し
環を支えとして、剥離力を円滑かつ確実に接着面
に及ぼし、剥離性、すなわち開封性を向上させた
技術がある（実施例第１５図参照）。 Therefore, conventionally, as shown in Japanese Utility Model Application No. 52-59140 and Japanese Utility Model Application No. 51-17102,
There is a technique in which a part of the entire periphery of the flange 3 is cut off, and using the cutoff ring as support, a peeling force is applied smoothly and reliably to the adhesive surface to improve the peelability, that is, the unsealability (see Example 15). .
しかしながら、前者の公報記載技術は、フラン
ジ３全周に亘つて切り溝を形成し、この溝を介し
てフランジ３の一部全周を切り離すものである
が、切り溝であるゆえ、そのフランジ３の一部全
周は、その全周に亘つてカツプ本体Ａに連続して
いるため（フランジ３表面に貫通する部分がない
ため）、円滑に切り離せない。すなわち、切り離
し性に問題がある。 However, in the technique described in the former publication, a cut groove is formed over the entire circumference of the flange 3, and a part of the entire circumference of the flange 3 is separated through this groove, but since it is a cut groove, the flange 3 A part of the entire circumference of the cup body A is continuous with the cup body A over its entire circumference (because there is no part that penetrates the surface of the flange 3), so it cannot be separated smoothly. In other words, there is a problem with separability.
また、後者の公報記載技術は、フランジ表面に
貫通するミシン目でもつて、フランジ３の一部全
周を切り離すものである。しかし、この技術も、
ミシン目間は連続しており、この連続部は、フラ
ンジ３と同一厚さを有しているため、切り離し性
に問題がある。 Furthermore, the technique described in the latter publication involves cutting off part of the entire periphery of the flange 3 using perforations penetrating the flange surface. However, this technology also
Since the perforations are continuous, and this continuous part has the same thickness as the flange 3, there is a problem in the ability to separate it.
とくに、この種の大型容器は、強度等の点か
ら、エチレン−プロピレン共重合体のごとく、延
伸性の高い材料を使用するため、その切り離し性
はさらに悪くなる。 In particular, this type of large container uses a material with high stretchability, such as ethylene-propylene copolymer, from the viewpoint of strength, so that its separation becomes even worse.
この発明は、上記易開封性容器において、上記
切り離し性を向上させることを課題とする。 An object of the present invention is to improve the detachability in the easy-to-open container.
上記課題を解決するために、この発明にあつて
は、前述のカツプ体と蓋材とからなり、フランジ
の一部全周を切り離す易開封性容器において、フ
ランジ全周に亘つてその表面に貫通するスリツト
を所要間隔に形成するとともに、各スリツト間の
連続部には隣接する両スリツトに至る切込み線を
形成し、その切込み線の深さは、前記両スリツト
の端においてフランジの表面に至り、両スリツト
間中央に向つて徐々に浅くなつている構成とした
のである。
In order to solve the above problems, the present invention provides an easy-to-open container consisting of the above-mentioned cup body and a lid member, in which a part of the entire circumference of the flange is cut off. slits are formed at required intervals, and a score line is formed in the continuous part between each slit that extends to both adjacent slits, and the depth of the score line is such that it reaches the surface of the flange at the end of both slits, The structure is such that the depth gradually becomes shallower toward the center between both slits.
上記所要間隔は、なるべく狭いほうが好ましい
が、蓋材を接着するときに、スリツト外側のフラ
ンジ部分が切り離される、折れ曲がる等の不都合
が生じないように、実験等によつて適宜に決定す
る。 The above-mentioned required interval is preferably as narrow as possible, but is appropriately determined through experiments etc. so that the flange portion on the outside of the slit will not be cut off or bent when bonding the lid material.
このように構成されるこの発明に係る易開封性
容器は、従来と同様に、スリツト外側のフランジ
部分をつまんで引き上げると、その引き上げ力に
より、切込み線をガイドとして連続部が切断され
ながら切り離し環が形成されるとともに、その環
を支えとして、蓋材が剥されてカツプ本体が開封
される。
In the easy-to-open container of the present invention constructed in this manner, when the flange portion on the outside of the slit is pinched and pulled up, the pulling force causes the continuous portion to be cut off using the score line as a guide, and the ring is separated. is formed, and the lid is peeled off using the ring as support to open the cup body.
この作用における前記連続部の切断時、その切
込み線がスリツト端から徐々に浅くなつているた
め、すなわち、切断開始端の連続部は極く薄いも
のであるため、切り目が入り易く、その入つた切
り目を案内として切断線が形成されて切断され
る。 When cutting the continuous part in this action, the score line becomes gradually shallower from the slit end, that is, the continuous part at the cutting start end is extremely thin, so it is easy to make a cut, and the cut line becomes shallower from the slit end. Using the cut as a guide, a cutting line is formed and the product is cut.
図において、Ａはカツプ体で、このカツプ体Ａ
は、底壁１と、この底壁１の周縁から連なる周壁
２とで構成され、周壁２の開口全周縁に外向きの
フランジ部３が設けられている。このフランジ部
３には、周壁２の開口縁に沿つて所定間隔でもつ
て部分的に非打抜き部（連続部）４とした打抜き
部（フランジ３の表面に貫通するスリツト）５が
形成されている。
In the figure, A is a cup body, and this cup body A
is composed of a bottom wall 1 and a peripheral wall 2 extending from the periphery of the bottom wall 1, and an outward flange portion 3 is provided on the entire periphery of the opening of the peripheral wall 2. This flange portion 3 is formed with punched portions (slits penetrating the surface of the flange 3) 5 that are partially non-punched portions (continuous portions) 4 at predetermined intervals along the opening edge of the peripheral wall 2. .
非打抜き部４には隣接する両スリツト５に至る
切込み線４ａが形成されており、その切込み線４
ａの深さｔは、両スリツト５，５の端においてフ
ランジ３の表面に至り、スリツト５，５間の中央
に向つて徐々に浅くなつている。すなわち、第１
２図に示すように、非打抜き部４における肉厚部
４ｂは断面部分円状となつている。 A score line 4a extending to both adjacent slits 5 is formed in the non-punched portion 4.
The depth t of a reaches the surface of the flange 3 at the ends of both slits 5, 5, and gradually becomes shallower toward the center between the slits 5, 5. That is, the first
As shown in FIG. 2, the thick portion 4b of the non-punched portion 4 has a partially circular cross section.
このカツプ本体Ａには、従来と同様に、適宜の
食品が収納（充填）され、フランジ３に蓋材Ｂの
周縁部を重ねると共に、熱シール或は接着剤を介
し接着されて密封される。 As in the conventional case, this cup body A is stored (filled) with an appropriate food, and the peripheral portion of the lid member B is overlapped with the flange 3 and sealed by heat sealing or bonding with an adhesive.
一方、この接着状態から、第１５図に示すよう
に、フランジ３の舌片を上方に引き上げると、そ
の引き上げ力によつて打抜き部５に沿い非打抜き
部４が切断されながら切り離し環３′が形成され
て蓋材Ｂが剥され、カツプ体Ａが開封される。 On the other hand, when the tongue piece of the flange 3 is pulled upward from this bonded state as shown in FIG. After the cup is formed, the lid B is peeled off and the cup body A is opened.
このとき、非打ち抜き部４の肉厚部４ｂは断面
部分円状で、切断開始端は極く薄いものであるた
め、切り目が入り易く、その切り目を案内として
切断線が形成されて円滑に切断する。このため、
切り離し環３′はスムースに形成されて、蓋材Ｂ
もスムースに剥れる。 At this time, since the thick part 4b of the non-punched part 4 has a circular cross section and is extremely thin at the cutting start end, it is easy to make cuts, and the cuts are used as guides to form cutting lines and cut smoothly. do. For this reason,
The separation ring 3' is formed smoothly and the lid material B
It also peels off smoothly.
この実施例は以上のように構成されており、つ
ぎに、そのカツプ体Ａの製造方法を添付図面に基
づいて説明する。 This embodiment is constructed as described above, and the method for manufacturing the cup body A will now be described with reference to the accompanying drawings.
第１図及び第２図で示した場合は、合成樹脂製
のシート１１を間歇走行させながら、前記シート
１１の停止時に、まずシート１１を挟んで対向す
る雄型１２と雌型１３とでプレスして前記シート
１１の片面方向に底壁１付の周壁２を突出させた
カツプ体Ａを型押しする。 In the case shown in FIGS. 1 and 2, while the synthetic resin sheet 11 is running intermittently, when the sheet 11 is stopped, the male mold 12 and the female mold 13 facing each other with the sheet 11 in between are first pressed. Then, a cup body A having a peripheral wall 2 with a bottom wall 1 protruding from one side of the sheet 11 is embossed.
次いで、前方の位置でカツプ体Ａが停止すると
打抜刃１４を降下させて周壁２の開口縁外側にフ
ランジ３が残るようシート１１からカツプ体Ａを
打抜く。このとき、打抜刃１４の内側に配置した
打抜刃１５によつてフランジ３には、周壁２の開
口縁に沿つて部分的に非打抜き部４を有する打抜
き部５が設けられる。 Next, when the cup body A stops at the front position, the punching blade 14 is lowered and the cup body A is punched out from the sheet 11 so that the flange 3 remains outside the opening edge of the peripheral wall 2. At this time, a punching portion 5 having a non-punching portion 4 partially along the opening edge of the peripheral wall 2 is provided on the flange 3 by the punching blade 15 disposed inside the punching blade 14 .
第３図及び第４図で示した場合は、合成樹脂製
のシート１１を間歇走行させながら、前記シート
１１の停止時に、まずシート１１を挟んで対向す
る雄型１２と雌型１３とでプレスして前記シート
１１の片面方向に底壁１付の周壁２を突出させた
カツプ体Ａを型押しする。 In the case shown in FIGS. 3 and 4, while the sheet 11 made of synthetic resin is running intermittently, when the sheet 11 is stopped, the male mold 12 and the female mold 13 facing each other with the sheet 11 in between are first pressed. Then, a cup body A having a peripheral wall 2 with a bottom wall 1 protruding from one side of the sheet 11 is embossed.
次いで、前方の位置でカツプ体Ａが停止する
と、打抜刃１５を降下させて、シート１１に、周
壁２の開口全縁に沿つて部分的に非打抜き部４を
有する打抜き部５が設けられる。このとき、型材
１６にカツプ体Ａが被さつてカツプ体Ａは定位置
に支持される。 Next, when the cup body A stops at the front position, the punching blade 15 is lowered to provide the sheet 11 with a punched part 5 having a partially non-punched part 4 along the entire edge of the opening of the peripheral wall 2. . At this time, the cup body A is covered with the mold member 16, and the cup body A is supported in a fixed position.
さらに、打抜き部５を設けたカツプ体Ａが次の
位置で停止すると、打抜刃１４により周壁２の開
口縁外側にフランジ３が残るようにシート１１か
らカツプ体Ａを打抜く。 Further, when the cup body A provided with the punched portion 5 stops at the next position, the cup body A is punched out from the sheet 11 by the punching blade 14 so that the flange 3 remains on the outside of the opening edge of the peripheral wall 2.
第５図及び第６図で示した場合は、合成樹脂製
のシート１１を間歇走行させながら、前記シート
１１の停止時に、まずシート１１を挟んで対向す
る雄型１２と雌型１３とでプレスして前記シート
１１の片面方向に底壁１付の周壁２を突出させた
カツプ体Ａを型押しする。 In the case shown in FIGS. 5 and 6, while the sheet 11 made of synthetic resin is running intermittently, when the sheet 11 is stopped, the male mold 12 and the female mold 13 facing each other with the sheet 11 in between are first pressed. Then, a cup body A having a peripheral wall 2 with a bottom wall 1 protruding from one side of the sheet 11 is embossed.
次いで、前方の位置でカツプ体Ａが停止する
と、打抜刃１４を降下させて周壁２の開口縁外側
にフランジ３が残るようにシート１１からカツプ
体Ａを打抜く。 Next, when the cup body A stops at the front position, the punching blade 14 is lowered to punch out the cup body A from the sheet 11 so that the flange 3 remains outside the opening edge of the peripheral wall 2.
その後に、打抜かれたカツプ体Ａを型材１６に
被せて打抜刃１５によつてフランジ３に、周壁２
の開口縁に沿つて部分的に非打抜き部４を有する
打抜き部５が設けられる。 After that, the punched cup body A is placed on the mold material 16 and is attached to the flange 3 by the punching blade 15.
A punched portion 5 having a partially non-punched portion 4 is provided along the edge of the opening.
第７図及び第８図で示した場合は、前述と同様
の方法で製造されたカツプ体Ａを別の工程で打抜
刃１４，１５によりフランジ３を打抜くのと同時
に非打抜き部４を有する打抜き部５が設けられ
る。 In the case shown in FIGS. 7 and 8, the cup body A produced in the same manner as described above is punched out using punching blades 14 and 15 in a separate process to punch out the flange 3 and at the same time, the non-punched portion 4 is punched out. A punched portion 5 is provided.
前記各製造方法において、打抜刃１４，１５
は、第９図から第１２図で示すように、昇降体１
７が定位置迄降下したときシート１１を打抜く
が、打抜刃１５の刃先中央部には円弧状カツト部
１８が形成されており、このカツト部１８の存在
により、前記非打抜き部４の肉厚部４ｂが断面部
分円状に形成される。 In each of the above manufacturing methods, the punching blades 14, 15
As shown in FIGS. 9 to 12, the elevating body 1
When the blade 7 descends to a fixed position, the sheet 11 is punched out. An arcuate cut portion 18 is formed at the center of the cutting edge of the punching blade 15, and due to the existence of this cut portion 18, the non-punched portion 4 is The thick portion 4b has a partially circular cross section.
なお、第１０図、第１１図において、カツト部
１８の刃先は、かなりの肉厚があるように見える
が、通常、打抜刃１５は１mm以下の肉厚であり、
このため、カツト部１８の刃先は、厚くても数百
ミクロン厚となり、かつ、シート１は合成樹脂で
あるため、カツト部１８によつても切断作用は円
滑になされる。 In addition, in FIGS. 10 and 11, the cutting edge of the cut portion 18 appears to have a considerable wall thickness, but the punching blade 15 normally has a wall thickness of 1 mm or less,
Therefore, the cutting edge of the cutting portion 18 has a thickness of several hundred microns at most, and since the sheet 1 is made of synthetic resin, the cutting action is performed smoothly by the cutting portion 18 as well.
また、シート１１を加熱してある場合は、雄型
１２及び雌型１３を加熱する必要がなく、シート
１１を加熱していない場合は、雄型１２及び雌型
１３を加熱すればよい。 Further, if the sheet 11 is heated, there is no need to heat the male mold 12 and the female mold 13, and if the sheet 11 is not heated, the male mold 12 and the female mold 13 may be heated.
この発明に係る易開封性容器によれば、以上の
ように構成して、切り離し環を形成するものとす
るとともに、その環の切り離し線を切断され易く
したので、切り離し環の切り離し性が向上する。
このため、前記公報記載の技術に比べ、フランジ
の一部がスムースに切り離されて切り離し環が形
成され、蓋材が非常になめらかに剥離する。
According to the easy-to-open container according to the present invention, the breakaway ring is formed as described above, and the breakaway line of the ring is made easy to cut, so that the breakability of the breakaway ring is improved. .
Therefore, compared to the technique described in the above-mentioned publication, a part of the flange is smoothly separated to form a separation ring, and the lid material is peeled off very smoothly.
図面はこの発明に係る易開封性容器及びその製
造方法を示すもので、第１図はカツプ体の打抜き
と同時に打抜き部を加工する側面図、第２図は同
上の平面図、第３図は打抜き部とカツプ体の引抜
きを別々に行う側面図、第４図は同上の平面図、
第５図はカツプ体の打抜きと打抜き部の加工を
別々に行なう側面図、第６図は同上の平面図、第
７図はカツプ体を供給して打抜きと打抜き部とを
同時に加工する側面図、第８図は同上の平面図、
第９図から第１１図は打抜作用の縦断拡大正面
図、第１２図は打抜作用の側面図、第１３図はカ
ツプ体の平面図、第１４図はカツプ体の斜視図、
第１５図は易開封性容器の一実施例の縦断側面図
である。
Ａ……カツプ体、Ｂ……蓋材、３……フラン
ジ、３′……切り離し環、４……連続部（非打抜
き部）、４ａ……切込み線、４ｂ……肉厚部、５
……スリツト（打抜き部）、１１……シート、１
２……雄型、１３……雌型、１４，１５……打抜
刃。
The drawings show an easy-to-open container and a method for manufacturing the same according to the present invention, in which Fig. 1 is a side view of punching out the cup body and processing the punched part at the same time, Fig. 2 is a plan view of the same, and Fig. 3 is A side view showing the punching part and the cup body being pulled out separately; FIG. 4 is a plan view of the same as above;
Fig. 5 is a side view in which the cup body is punched and the punched part is processed separately, Fig. 6 is a plan view of the same as above, and Fig. 7 is a side view in which the cup body is supplied and the punched part and the punched part are processed simultaneously. , Figure 8 is a plan view of the same as above,
9 to 11 are longitudinal enlarged front views of the punching action, FIG. 12 is a side view of the punching action, FIG. 13 is a plan view of the cup body, and FIG. 14 is a perspective view of the cup body.
FIG. 15 is a longitudinal sectional side view of an embodiment of the easy-open container. A... Cup body, B... Lid material, 3... Flange, 3'... Separation ring, 4... Continuous part (non-punching part), 4a... Cut line, 4b... Thick part, 5
...Slit (punching part), 11 ...Sheet, 1
2...male type, 13...female type, 14,15...punching blade.
Claims (1)
フランジ３を一体に設け、そのカツプ体Ａ開口を
フイルム状蓋材Ｂで被つて、その蓋材Ｂを前記フ
ランジ３上面全周に接着した易開封性容器におい
て、前記フランジ３全周に亘つてその表面に貫通
するスリツト５を所要間隔に形成するとともに、
各スリツト５間の連続部４には隣接する両スリツ
ト５に至る切込み線４ａを形成し、その切込み線
４ａの深さｔは、前記両スリツト５の端において
フランジ３の表面に至り、両スリツト５間中央に
向つて徐々に浅くなつていることを特徴とする易
開封性容器。1. An outward flange 3 is integrally provided around the entire periphery of the opening of a synthetic resin cup body A, the opening of the cup body A is covered with a film-like lid material B, and the lid material B is adhered to the entire periphery of the upper surface of the flange 3. In the easy-open container, slits 5 penetrating the surface of the flange 3 are formed at required intervals all around the flange 3, and
A score line 4a extending to both adjacent slits 5 is formed in the continuous portion 4 between each slit 5, and the depth t of the score line 4a is such that it reaches the surface of the flange 3 at the end of both slits 5, and extends to both adjacent slits 5. An easy-to-open container characterized by being gradually shallower toward the center.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61091119A JPS62244612A (en) | 1986-04-16 | 1986-04-16 | Manufacture of easily openable vessel |
| EP87105154A EP0241002A3 (en) | 1986-04-07 | 1987-04-07 | Process for manufacturing easy-to-open containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61091119A JPS62244612A (en) | 1986-04-16 | 1986-04-16 | Manufacture of easily openable vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62244612A JPS62244612A (en) | 1987-10-26 |
| JPH0555393B2 true JPH0555393B2 (en) | 1993-08-16 |
Family
ID=14017634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61091119A Granted JPS62244612A (en) | 1986-04-07 | 1986-04-16 | Manufacture of easily openable vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62244612A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117102B2 (en) * | 1972-07-18 | 1976-05-31 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117102U (en) * | 1974-07-24 | 1976-02-07 | ||
| JPS5259140U (en) * | 1975-10-28 | 1977-04-28 | ||
| JPS536737U (en) * | 1976-10-25 | 1978-01-20 | ||
| JPS58163495U (en) * | 1982-03-06 | 1983-10-31 | 松尾 政彦 | Screw-type cap opener |
-
1986
- 1986-04-16 JP JP61091119A patent/JPS62244612A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117102B2 (en) * | 1972-07-18 | 1976-05-31 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62244612A (en) | 1987-10-26 |
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