JPS6018349Y2

JPS6018349Y2 - bag

Info

Publication number: JPS6018349Y2
Application number: JP1977135728U
Authority: JP
Inventors: 親弘阪口
Original assignee: 大昭和紙工産業株式会社
Priority date: 1977-10-08
Filing date: 1977-10-08
Publication date: 1985-06-04
Also published as: JPS5461816U

Description

【考案の詳細な説明】重包装用多層袋、とりわけセメント用の多層袋は、防湿
性が充分でなければならない。[Detailed description of the invention] A multilayer bag for heavy packaging, especially a multilayer bag for cement, must have sufficient moisture resistance.

ところで従来のセメン１−袋は装本体の開口両端部を、
これに補強クレープ紙をかぶせて糸で縫合しているが、
糸通し孔で強度が低下するばかりではなく、糸は一般に
吸湿性があるため導水線の作用をし、水分を最も嫌うセ
メント用には実際のところ好適とはいえない。By the way, the conventional cement 1-bag has both open ends of the packaging body,
This is then covered with reinforced crepe paper and sewn with thread.
Not only does the strength decrease due to the threading holes, but the thread is generally hygroscopic and therefore acts as a water conductor, making it actually unsuitable for use in cement, which hates moisture the most.

しかもミシン縫いには縫い代を必要とし、−一方の開口
部の縫い代を１３ミリメートルとしても、両端閉封用に
は２６ミリメードルも必要で、それだけ材料を多く要し
、製品歩留が低く、コスト高となる。Furthermore, machine sewing requires a seam allowance; even if the seam allowance for one opening is 13 mm, 26 mm is required to close both ends, which requires a large amount of material, resulting in low product yield and high costs. becomes.

また角底とした多層体もあるが、底紙を貼るのに、手貼
りではいかにも効率が悪くて工数が犬となり、機械貼り
ではその装置が大がかりで設備費が高くつく。There is also a multi-layered material with a square bottom, but applying the bottom paper by hand is inefficient and requires a lot of man-hours, while applying it by machine requires large-scale equipment and equipment costs are high.

のみならす、底を貼り合わせるための糊代が必要で材料
を多く要するばかりではなく、底紙を水密性が完全な状
態に貼りつけるのが、特に厚手の紙や多層袋のばあには
容易でないという欠点（）ある。Not only does it require glue to attach the bottom, which requires a large amount of material, but it is also easy to attach the bottom paper to a completely watertight state, especially for thick paper or multi-layered bags. There is a drawback that it is not ().

本考案はいかにも構造は簡単であるが、しかし前述した
欠点が除去されている袋、特に重包装用多層袋に好適な
袋に関腰その特徴とするところは、装本体たる筒体１の
前胴部１ａと後胴部１ｂの両下辺部へ、筒体の横巾より
も長くて両端２’、２’が筒体の両側からはみ出す長さ
のテープ２を二つ折り状に貼りつけ、かつテープの前記
両はみ出し端部２’、２’の折り返し対向片部２ａ′
。Although the structure of the present invention is quite simple, the above-mentioned drawbacks have been eliminated and the bag is particularly suitable for multi-layered bags for heavy packaging. Tape 2, which is longer than the width of the cylindrical body and whose ends 2' and 2' protrude from both sides of the cylindrical body, is pasted in a two-fold shape to both lower sides of the body part 1a and the rear body part 1b, and Folded opposing pieces 2a' of both protruding ends 2', 2' of the tape
.

２ｂ’同士も互いに貼り合わせたことにある。2b' are also attached to each other.

こ１で、筒体１は単層袋とするばあいもあるしあるいは
多層袋とすることもあり、テープ２は紙製とかＰ−Ｐク
ロス製のものとするばあいもある。In this case, the cylinder 1 may be a single-layer bag or a multi-layer bag, and the tape 2 may be made of paper or P-P cloth.

また、筒体１の上開口部を閉封する手段は任意であり、
従来のごとくクレープを使用してミシン縫いするばあい
もあるし、あるいは前述したごとく二つ折りテープを貼
りつけてするばあいもある。Further, the means for closing the upper opening of the cylinder 1 is arbitrary.
There are cases where the machine stitches are made using crepe as in the past, and cases where bi-fold tape is attached as mentioned above.

なお、多層袋のばあいは、各層のものの下辺部同士を互
いに貼着重合せしめるとよい。In the case of a multilayer bag, it is preferable that the lower sides of each layer are adhered and overlapped with each other.

本考案の袋は上述］、た構造のもので、二つ折り状にし
たテープ２の各折り片２ａ＊２ｈを筒体１の前後胴部１
ａ、ｌｂの下辺部へ貼りつけるだけであるから、製袋が
容易であり、またミシン孔がないので、強度の低下や湿
気の導入を防止できる。The bag of the present invention has the above-mentioned structure, and each folded piece 2a * 2h of the tape 2 folded in half is attached to the front and rear body parts 1 of the cylinder 1.
It is easy to make bags because it is simply pasted on the lower sides of the sheets a and lb, and since there are no perforations, it is possible to prevent a decrease in strength and the introduction of moisture.

また筒体１における前後胴部１ａ、１ｂの下辺部は、二
つ折りテープ２によって包まれるようになっているので
、前後胴部の各下辺部同士を単に接合したものよりも、
底ははるかに強度が大となっており、耐荷重性にすぐれ
た袋として使用できる。In addition, since the lower sides of the front and rear body parts 1a and 1b of the cylinder body 1 are wrapped with the bi-fold tape 2, the lower sides of the front and rear body parts are wrapped together.
The bottom is much stronger and can be used as a bag with excellent load resistance.

さらに、テープ２は筒体１の横巾よりも長くて２’、２
’が筒体の両側方に突出し、かつこの突出しているはみ
出し部の折り返し片部２ａ’ｔ２ｂ’同士も互いに貼
り合わさせられているので、はみ出し部のないものと異
なり、筒体の底の閉封力が大となっている。Furthermore, the tape 2 is longer than the width of the cylindrical body 1 and is 2', 2'.
' project on both sides of the cylinder, and the folded pieces 2a' and 2b' of the protruding protruding parts are also attached to each other, so unlike the case without protruding parts, the bottom of the cylinder The sealing force is great.

しかも実験の結果では、クレープ紙を使用１７て縫合し
たものよりらはるかに引っ張り強度が犬で丈夫な袋とな
っている。Moreover, the results of experiments have shown that the bag has a much stronger tensile strength than one made of crepe paper and sewn together.

また、筒体１の胴下辺には糊代を必要としないから、材
料を節約でき、コストダウンを期せる利点がある。Further, since no glue is required on the lower side of the cylinder 1, there is an advantage that materials can be saved and costs can be reduced.

[Brief explanation of the drawing]

第１図は本考案に係る袋の一例を示す一部破断斜視図、
第２図は■−■線縦断拡大面図である。図中、１・・・・・・袋、１ａ・・・・・・前胴、１ｂ
・・・・・・後胴、２・・・・・・テープ、２ａ、２ｂ
・・・・・・折り片部、２′・・・・・・はみ出し部、
２ａ’ｔ２ｂ’・・・・・・はみ出１７部の折り片部
。FIG. 1 is a partially cutaway perspective view showing an example of a bag according to the present invention;
FIG. 2 is an enlarged vertical sectional view taken along the line ■-■. In the figure, 1...Bag, 1a...Front body, 1b
... Rear body, 2 ... Tape, 2a, 2b
...Folded piece part, 2'...Protruding part,
2a't 2b'... 17 protruding folded pieces.

Claims

[Scope of utility model registration request]

Attach a piece of tape, which is longer than the width of the cylinder and whose ends protrude from both sides of the cylinder, in a bifold shape, to both the lower sides of the front body and rear body of the cylinder, which is the housing body, and The folded opposing pieces of both protruding ends of the bag are also pasted together.