JPH0636951B2 - Method for manufacturing cover of two-layer cup for water bottle - Google Patents
Method for manufacturing cover of two-layer cup for water bottleInfo
- Publication number
- JPH0636951B2 JPH0636951B2 JP60169280A JP16928085A JPH0636951B2 JP H0636951 B2 JPH0636951 B2 JP H0636951B2 JP 60169280 A JP60169280 A JP 60169280A JP 16928085 A JP16928085 A JP 16928085A JP H0636951 B2 JPH0636951 B2 JP H0636951B2
- Authority
- JP
- Japan
- Prior art keywords
- cover
- water bottle
- cup
- tubular material
- layer cup
- 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
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- Portable Outdoor Equipment (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 この発明は、水筒用のコップに関し、さらに詳しくは、
合成樹脂製のコップ本体の外面に、金属製のカバーを被
嵌して二層に形成される水筒用二層コップのカバー製造
方法に関する。TECHNICAL FIELD The present invention relates to a cup for a water bottle, and more specifically,
The present invention relates to a cover manufacturing method for a two-layer cup for a water bottle, in which a metal cover is fitted on the outer surface of a cup body made of a synthetic resin to form two layers.
（ロ）従来の技術 上述のカバーはその底部に、コップ本体の嵌合部に嵌合
する貫通孔を有する肩部を形成し、また、開口部の周縁
部に、外周面側へ折り曲げた折り返し部を形成してお
り、従来、このカバーを製造するには、帯状の薄板を所
定の大きさの円板に打ち抜いて、この円板を絞り加工し
て円筒形状に製造していた。(B) Prior art The above-mentioned cover has a bottom portion formed with a shoulder portion having a through hole that fits into the fitting portion of the cup body, and is folded back toward the outer peripheral surface at the peripheral portion of the opening portion. In order to manufacture this cover, conventionally, a strip-shaped thin plate is punched into a disk having a predetermined size, and this disk is drawn to form a cylindrical shape.
しかし、帯状の薄板を打ち抜くとき、千鳥状に円板を打
ち抜いても、円板を打ち抜いた後の材料の残り、つまり
スクラップが多く廃出されるため歩溜りが悪く、材料の
使用率が低くて製造コストが高くなるという問題点を有
していた。However, when punching a strip-shaped thin plate, even if the discs are punched in a staggered manner, the rest of the material after punching the discs, that is, a large amount of scrap, is wasted, so the yield is poor and the material usage rate is low. It has a problem that the manufacturing cost becomes high.
また、絞り加工のときの変形率が高いため、カバーに割
れ、しわの付いた不良品が出き易く、さらには引き延し
率が高すぎてカバーの表面が荒くなり、仕上げ、研磨加
工が必要とし、さらに材料の厚みも薄材に制約される問
題点も有していた。In addition, since the deformation rate during drawing is high, defective products with cracks and wrinkles are likely to appear on the cover, and the elongation ratio is too high to roughen the surface of the cover, and finishing and polishing processes are difficult. However, there is a problem that the material is required and the thickness of the material is limited to a thin material.
（ハ）発明が解決しようとする課題 この発明は、筒状素材をプレス加工してカバーを形成す
ることで、歩溜りを向上してカバーの製造コストが低減
し、しかも、プレス加工時の変形率が極めて小さくして
精度の高いカバーを形成することができる水筒用二層コ
ップのカバー製造方法の提供を目的とする。(C) Problem to be Solved by the Invention The present invention improves the yield by reducing the manufacturing cost of the cover by pressing the cylindrical material to form the cover. An object of the present invention is to provide a cover manufacturing method for a two-layer cup for a water bottle, which can form a highly accurate cover with a very small rate.
（ニ）課題を解決するための手段 この発明は、薄板を円筒形に折り曲げて所定寸法のカバ
ーの筒状素材を形成し、この筒状素材の一端側に前記肩
部を絞出し、該筒状素材の他端側を順次広げ出して前記
折り返し部を形成すべくプレス加工する水筒用二層コッ
プのカバー製造方法であることを特徴とする。(D) Means for Solving the Problem The present invention is to fold a thin plate into a cylindrical shape to form a tubular material of a cover having a predetermined size, and squeeze the shoulder portion at one end side of the tubular material. It is a method of manufacturing a cover for a two-layer cup for a water bottle, in which the other end of the strip-shaped material is sequentially expanded and pressed to form the folded portion.
（ホ）発明の効果 この発明は、薄板を円筒形に折り曲げて所定寸法のカバ
ーの筒状素材を形成し、この筒状素材の一端側に肩部を
絞出し、該筒状素材の他端側を順次広げ出して折り返し
部を形成すべくプレス加工してコップのカバーを形成す
ることで、材料損失が無く、歩溜りが向上して、水筒用
二層コップのカバーの製造コストが低減する。(E) Effect of the Invention According to the present invention, a thin plate is bent into a cylindrical shape to form a tubular material of a cover having a predetermined size, and a shoulder portion is squeezed out to one end side of the tubular material, and the other end of the tubular material is formed. By forming the cup cover by pressing the sides side by side to form the folded-back portion, there is no material loss, the yield is improved, and the manufacturing cost of the double-layer cup cover for water bottles is reduced. .
しかも、コップのカバーは筒状素材の円筒形を利用した
略同一の形状に形成するので、プレス加工時の変形率が
極めて小さく、このためコップのカバーに割れ、しわ等
の付いた不良品の発生がなく、精度の高いコップのカバ
ーを形成することができ、しかも厚物の材料での加工が
可能となり、さらには、表面の肌荒れがないため、仕上
げ加工が簡単化される。Moreover, since the cup cover is formed in a substantially identical shape using the cylindrical shape of the cylindrical material, the deformation rate during press working is extremely small. It is possible to form a highly accurate cup cover that does not occur, and it is possible to process a thick material. Further, since the surface is not roughened, the finishing process is simplified.
（ヘ）発明の実施例 この発明の一実施例を以下図面に基づいて詳述する。(F) Embodiment of the Invention One embodiment of the present invention will be described in detail below with reference to the drawings.
図面は水筒用二層コップを示し、第５図、第６図におい
て水筒用二層コップ１は、水筒２の口部２ａに装着する
合成樹脂製のコップ本体３と、このコップ本体３の外面
３ａに被嵌した、薄肉金属製のカバー４とから構成して
いる。The drawings show a two-layer cup for a water bottle. In FIGS. 5 and 6, the two-layer cup 1 for a water bottle is a cup body 3 made of synthetic resin to be attached to a mouth 2a of a water bottle 2 and an outer surface of the cup body 3. 3a, which is a cover 4 made of a thin metal and fitted.
上述のコップ本体３は、第７図にも示すように、底部５
に、円筒形の嵌合部６を外面３ａ側に凸状に形成してい
る。As shown in FIG. 7, the cup body 3 described above has a bottom portion 5
In addition, the cylindrical fitting portion 6 is formed in a convex shape on the outer surface 3a side.
またコップ本体１の開口部７には、内周面に雌ねじ８を
螺刻して、この雌ねじ８を水筒２の口部２ａ外周面に螺
刻された雄ねじ２ｂに螺合させて、コップ本体１を水筒
２の口部２ａに装着可能に構成している。Further, in the opening 7 of the cup body 1, a female screw 8 is screwed on the inner peripheral surface, and the female screw 8 is screwed onto the male screw 2b screwed on the outer peripheral surface of the mouth 2a of the water bottle 2 to form a cup body. 1 can be attached to the mouth portion 2a of the water bottle 2.
上述の開口部７の周縁部９には、第８図、第９図にも示
すようにこの周縁部９に沿って外周面に係止鍔１０を形
成している。この係止鍔１０には、裏側に係止溝１０ａ
を形成し、また係止溝１０ａの内側に係止突起１０ｂを
形成している。As shown in FIGS. 8 and 9, the peripheral edge portion 9 of the above-mentioned opening 7 is provided with a locking collar 10 along the peripheral edge portion 9 on the outer peripheral surface thereof. This locking collar 10 has a locking groove 10a on the back side.
And a locking projection 10b is formed inside the locking groove 10a.
なお、コップ本体３の外面３ａは、底部５側の径を小さ
く、開口部７側の径を大きくなるテーパに形成してい
る。The outer surface 3a of the cup body 3 is tapered so that the diameter on the bottom 5 side is small and the diameter on the opening 7 side is large.
前述のカバー４は、第６図にも示すようにコップ本体３
の外面３ａに略沿う円筒形に形成している。このカバー
４の底部１１には、第７図にも示すように、前述のコッ
プ本体３に形成した嵌合部６と略同径の貫通孔１１ａ
を、後述するプレス加工によって筒状素材１５ａの端部
１５ｂに肩部１１ｃを絞出して形成している。As shown in FIG. 6, the cover 4 has a cup body 3 as shown in FIG.
Is formed in a cylindrical shape substantially along the outer surface 3a. As shown in FIG. 7, the bottom portion 11 of the cover 4 has a through hole 11a having substantially the same diameter as the fitting portion 6 formed in the cup body 3 described above.
Is formed by squeezing the shoulder portion 11c on the end portion 15b of the tubular material 15a by the press working described later.
また、カバー４の開口部１２側の周縁部１２ａには、第
８図、第９図にも示すように、端部１２ｂを外周面側へ
折り曲げて、前述の係止鍔１０の係止溝１０ａと係合可
能な折り返し部１２ｄを形成している。また折り返し部
１２ｄには、係止溝１０ａの係止突起１０ｂと係合する
大きさの切り欠き部１２ｃを形成している。Further, as shown in FIG. 8 and FIG. 9, at the peripheral edge portion 12a of the cover 4 on the side of the opening portion 12, the end portion 12b is bent toward the outer peripheral surface side, and the engaging groove of the engaging collar 10 described above is formed. A folded portion 12d that can be engaged with 10a is formed. Further, the folded portion 12d is formed with a cutout portion 12c having a size that engages with the locking protrusion 10b of the locking groove 10a.
そして、上述のカバー４は、コップ本体３の外面３ａに
被嵌して、貫通孔１１ａをコップ本体３の嵌合部６と嵌
合させ、また折り返し部１２ｄを係止鍔１０の係止溝１
０ａに係合させて、コップ本体３の外面３ａに一体に固
着している。The cover 4 is fitted on the outer surface 3a of the cup body 3 to fit the through hole 11a with the fitting portion 6 of the cup body 3, and the folded portion 12d with the locking groove of the locking collar 10. 1
0a and is integrally fixed to the outer surface 3a of the cup body 3.
上述のカバー４の製造は、第１図のイ図に示すように、
たとえばステンレス材の帯状の薄板１３を一方向に引張
りながら、ロ図に示すようにローラ１４，１４で両端を
折り曲げて円筒形に形成し、同時に両端の当接部分１３
ａを溶接してハ図に示すように筒状母材１５を形成す
る。The manufacture of the cover 4 described above is performed as shown in FIG.
For example, while pulling a thin strip 13 of stainless steel in one direction, both ends are bent by rollers 14, 14 to form a cylindrical shape as shown in FIG.
A is welded to form a tubular base material 15 as shown in FIG.
この後、筒状母材１５を図中点線で示す所定寸法で切断
してニ図に示すように筒状素材１５ａ…を作る。After that, the tubular base material 15 is cut at a predetermined dimension shown by a dotted line in the drawing to produce a tubular material 15a ... As shown in FIG.
第２図、第３図に示すように、上述の筒状素材１５ａを
プレス加工する金型１６は、コップ本体３の外面３ａの
内壁形状に対応する凸部１７を形成した雄金型１８と、
この雄金型１８の凸部１７と嵌合し、コップ本体３の外
面３ａの外壁形状と対応する凹部１９を形成した雌金型
２０とから構成している。As shown in FIG. 2 and FIG. 3, the metal mold 16 for pressing the above-mentioned tubular material 15a includes a male metal mold 18 having a convex portion 17 corresponding to the inner wall shape of the outer surface 3a of the cup body 3. ,
The male die 18 is fitted with the convex portion 17 and is formed with a female die 20 having a concave portion 19 corresponding to the outer wall shape of the outer surface 3a of the cup body 3.
上述の雄金型１８の凸部１７は、頭部１７ａの外径を筒
状素材１５ａの内径より若干小径に形成し、また基部１
７ｂの外径を頭部１７ａの外径より大径に形成して、こ
の凸部１７の周面１７ｃを、頭部１７ａ側から基部１７
ｂ側へ順次広くなるテーパに形成している。The convex portion 17 of the male mold 18 described above is formed such that the outer diameter of the head portion 17a is slightly smaller than the inner diameter of the tubular material 15a, and the base portion 1
The outer diameter of 7b is formed to be larger than the outer diameter of the head portion 17a, and the peripheral surface 17c of the convex portion 17 is formed from the head portion 17a side to the base portion 17a.
The taper is formed so that it gradually becomes wider toward the b side.
なお、頭部１７ａの外径は、コップ本体３の底部５の外
径と同径に、基部１７ｂの外径は開口部７側の外径と同
径にそれぞれ設定している。The outer diameter of the head portion 17a is set to the same diameter as the outer diameter of the bottom portion 5 of the cup body 3, and the outer diameter of the base portion 17b is set to the same diameter as the outer diameter of the opening portion 7 side.
また、基部１７ｂの周囲には筒状素材１５ａの端部１５
ｂを外側に折り返す返し溝１７ｄを環状に形成してい
る。In addition, the end portion 15 of the tubular material 15a is surrounded by the base portion 17b.
The return groove 17d is formed in a ring shape by folding back b to the outside.
前述の雌金型２０の凹部１９は、雄金型１８の凸部１７
より筒状素材１５ａの厚み分だけ大きくした略同形状に
形成している。なお、凹部１９の底部１９ａの内径は筒
状素材１５ａの外径と同径に形成している。また、底部
１９ａの隅には筒状素材１５ａの端部１５ｂを内側へ絞
出するアール部１９ｂを形成している。The concave portion 19 of the female die 20 is the convex portion 17 of the male die 18.
The cylindrical material 15a is formed in a substantially same shape with a thickness increased by the thickness of the cylindrical material 15a. The inner diameter of the bottom portion 19a of the recess 19 is formed to be the same as the outer diameter of the tubular material 15a. Further, at the corner of the bottom portion 19a, there is formed a rounded portion 19b for squeezing the end portion 15b of the tubular material 15a inward.
そして、このように構成した雄金型１８と雌金型２０
で、筒状素材１５ａをプレス加工すると、第３図に示す
ように、筒状素材１５ａの一方の開口側が雄金型１７の
頭部１７ａで内側より外側に押し広げられる。これと同
時に、筒状素材１５ａの一方の端部１５ｂは雄金型１８
の返し溝１７ｄで外側に折り返されて、若干の折り返し
部１２ｄが形成される。Then, the male mold 18 and the female mold 20 configured as described above
Then, when the tubular material 15a is pressed, one opening side of the tubular material 15a is pushed outward by the head portion 17a of the male die 17 from the inside, as shown in FIG. At the same time, one end 15b of the tubular material 15a is attached to the male die 18
The return groove 17d is folded back to the outside to form a slight folded portion 12d.
また他方の端部１５ｂは、雌金型２０のアール部１９ｂ
で内側に肩部１１ｃが絞出されて、嵌合部６とほぼ同径
の貫通孔１１ａが形成される。そして上述のようにプレ
ス加工することでカバー４の原形が形成される。The other end portion 15b is a rounded portion 19b of the female die 20.
Then, the shoulder portion 11c is squeezed inward to form a through hole 11a having substantially the same diameter as the fitting portion 6. Then, the original shape of the cover 4 is formed by pressing as described above.
この後、第４図に示すように、カバー４の原形を金型１
６より取り外ずして、折り返し部１２ｄをコップ本体３
の係止溝１０ａと係合可能な形状にまでカーリング加工
する。また、貫通孔１１ａも嵌合部６と同径に内径を切
削することで、第５図、第６図に示すように、コップ本
体３に被嵌するカバー４に形成できる。After that, as shown in FIG. 4, the original shape of the cover 4 is changed to the mold 1
6 and remove the folded portion 12d from the cup body 3
Curling is performed to a shape that can be engaged with the locking groove 10a. Further, the through hole 11a can also be formed in the cover 4 fitted into the cup body 3 by cutting the inner diameter to the same diameter as the fitting portion 6, as shown in FIGS.
このように水筒用二層コップ１のカバー４を、筒状素材
１５ａをプレス加工して製造することで、歩溜りが向上
し、プレス加工も容易となってカバー４の製造コストが
低減し、低価格で水筒用二層コップ１を提供することが
できる。By manufacturing the cover 4 of the double-layered cup 1 for a water bottle by pressing the tubular material 15a as described above, the yield is improved, the press processing is facilitated, and the manufacturing cost of the cover 4 is reduced. It is possible to provide the two-layer cup 1 for a water bottle at a low price.
また、カバー４の変形率が極めて小さいので、プレス加
工時にカバー４に割れ、しわ等の付いた不良品が形成さ
れることがない。さらには筒状素材１５ａの周面を細密
の状態のままでカバー４が形成できるので、カバー３の
仕上げ加工が簡単化される。Moreover, since the deformation rate of the cover 4 is extremely small, a defective product such as a crack or a wrinkle is not formed on the cover 4 during press working. Furthermore, since the cover 4 can be formed while keeping the peripheral surface of the tubular material 15a in a fine state, the finishing process of the cover 3 is simplified.
なお、上述の実施例で示す筒状素材１５ａを形成する場
合、帯状の薄板１３を所定寸法に切断し、この後、薄板
１３を折り曲げて筒状に形成するもよい。When forming the tubular material 15a shown in the above-mentioned embodiment, the strip-shaped thin plate 13 may be cut into a predetermined size, and then the thin plate 13 may be bent to form a tubular shape.
図面はこの発明の一実施例を示し、第１図は筒状素材の
製造工程を示す説明図、第２図は筒状素材のプレス加工
を示す説明断面図、第３図はプレス加工によって形成さ
れたカバーの原形を示す説明断面図、第４図はカバーの
原形を示す斜視図、第５図は水筒用二層コップの斜視
図、第６図は水筒用二層コップの縦断面図、第７図は、
嵌合部と貫通孔の嵌合状態を示す拡大断面図、第８図は
水筒用二層コップの要部拡大断面図、第９図は水筒用二
層コップのＡ−Ａ断面図である。 １……水筒用二層コップ、１１ｃ……肩部、 １５ａ……筒状素材、１５ｂ……端部、The drawings show one embodiment of the present invention, FIG. 1 is an explanatory view showing a manufacturing process of a tubular material, FIG. 2 is an explanatory sectional view showing press working of the tubular material, and FIG. 3 is formed by press working. FIG. 4 is a perspective view showing the original form of the cover, FIG. 5 is a perspective view of a two-layer cup for a water bottle, and FIG. 6 is a vertical cross-sectional view of a two-layer cup for a water bottle. Figure 7 shows
FIG. 8 is an enlarged cross-sectional view showing a fitted state of the fitting portion and the through hole, FIG. 8 is an enlarged cross-sectional view of a main part of the two-layer cup for a water bottle, and FIG. 1 ... two-layer cup for water bottle, 11c ... shoulder, 15a ... tubular material, 15b ... end,
Claims (1)
二層コップにする金属製のカバーであって、該カバーの
底部に、コップ本体の嵌合部に嵌合する貫通孔を有する
肩部を形成し、開口部の周縁部に、外周面側へ折り曲げ
た折り返し部を形成した水筒用二層コップのカバー製造
方法であって、 薄板を円筒形に折り曲げて所定寸法のカバーの筒状素材
を形成し、 この筒状素材の一端側に前記肩部を絞出し、該筒状素材
の他端側を順次広げ出して前記折り返し部を形成すべく
プレス加工する水筒用二層コップのカバー製造方法。1. A metal cover which is fitted into an outer surface of a cup body made of synthetic resin to form a two-layer cup, and a through hole which is fitted to a fitting portion of the cup body is provided at a bottom portion of the cover. A method of manufacturing a cover for a two-layer cup for a water bottle, in which a shoulder portion is formed, and a folded-back portion that is bent toward the outer peripheral surface is formed in the peripheral edge portion of the opening, the thin plate being bent into a cylindrical shape A two-layer cup for water bottles in which a tubular material is formed, and the shoulder portion is squeezed out to one end side of the tubular material, and the other end side of the tubular material is sequentially expanded to press the folded portion to form the folded portion. Cover manufacturing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60169280A JPH0636951B2 (en) | 1985-07-30 | 1985-07-30 | Method for manufacturing cover of two-layer cup for water bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60169280A JPH0636951B2 (en) | 1985-07-30 | 1985-07-30 | Method for manufacturing cover of two-layer cup for water bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6228035A JPS6228035A (en) | 1987-02-06 |
| JPH0636951B2 true JPH0636951B2 (en) | 1994-05-18 |
Family
ID=15883584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60169280A Expired - Lifetime JPH0636951B2 (en) | 1985-07-30 | 1985-07-30 | Method for manufacturing cover of two-layer cup for water bottle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0636951B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3666716D1 (en) * | 1985-07-22 | 1989-12-07 | Honda Motor Co Ltd | Exhaust timing control apparatus |
| JP2510525Y2 (en) * | 1988-11-10 | 1996-09-11 | 象印マホービン株式会社 | Cylindrical body having a cylindrical cover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5756117A (en) * | 1980-09-17 | 1982-04-03 | Miyata Kogyo Kk | Manufacturing method and apparatus for double inner butted pipe |
-
1985
- 1985-07-30 JP JP60169280A patent/JPH0636951B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6228035A (en) | 1987-02-06 |
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