JP3034674U - Paper bag with valve for powder packaging - Google Patents

Abstract

(57)【要約】 【課題】 資材の無駄を省き、使用上何等遜色のない粉
体包装用弁付き紙袋を提供すること。 【解決手段】 左右をガゼット折り(１)(１)した袋体
(２)の真直口縁(２ａ)の一隅に弁となる小紙片３の一部
を接着し、これを内側に折り込んで吹込口６を設けたこ
と。 (57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a paper bag with a valve for powder packaging, which saves the waste of materials and is comparable in use. SOLUTION: A bag body in which left and right gussets are folded (1) (1)
A part of the small piece of paper 3 which serves as a valve is adhered to one corner of the straight mouth edge (2a) of (2), and this is folded inward to provide the blowing port 6.

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【考案の属する技術分野】本考案は、セメントやメリケン粉等の粉体を収容 する紙袋に係り、特に不還弁を付設した粉体包装用弁付き紙袋に関するものであ る。TECHNICAL FIELD The present invention relates to a paper bag containing powder such as cement and Meriken powder, and more particularly to a paper bag with a valve for powder packaging provided with a non-return valve.

【０００２】[0002]

【従来技術】従来この種の紙袋は図７（ａ）に示すように、ガゼット折りの ひだ１０を左右に施した袋体１１は吹込口を形成する部分Ｂを残して切り落とし 、吹込口形成部分Ｂを同図（ｂ）のように内側に折り込んで吹込口を形成してい る。図中Ｈは不還弁の突出部の高さで切り落とし部分１２の寸法を示す、Ｌは袋 となつたときの寸法、Ｌ1 は筒状の切断寸法を示す（Ｌ＝Ｌ1 −Ｈ）、Ｂは弁の 折り込み基準寸法、Ｄは吹込口の折径、１３は上口ミシン縫いのミシン目線であ る。 以上のように従来の紙袋は切り落とし部分１２があるため、それだけ資材を無 駄にしていたことになり、その量は莫大の量に達している。2. Description of the Related Art Conventionally, as shown in FIG. 7 (a), a paper bag of this type has a bag body 11 having gusset-folded folds 10 on the left and right, which is cut off except for a portion B forming a blow-in port. B is folded inward as shown in FIG. 3 (b) to form a blow port. In the figure, H is the height of the protrusion of the non-return valve and shows the size of the cut-off portion 12. L is the size when the bag is connected to the bag, L1 is the cylindrical cutting size (L = L1-H), B Is the standard folding dimension of the valve, D is the diameter of the blow-in opening, and 13 is the perforation line of the upper sewing machine. As described above, since the conventional paper bag has the cut-off portion 12, it means that the material is wasted by that much, and the amount thereof reaches an enormous amount.

【０００３】[0003]

【考案が解決しようとする課題】本考案の課題は、前記した資材の無駄を省 き、しかも使用上何等遜色のない弁付き紙袋を提供することにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a paper bag with a valve that eliminates the waste of the above-mentioned materials and is comparable in use.

【０００４】[0004]

【課題を解決するための手段】本考案の手段は、左右をガゼット折りした袋 体の真直口縁の一隅部表裏両面に方形の弁形成用小紙片を当て、小紙片は対角線 折目を施して３角形先方片と３角形後方片に分け、３角形先方片のみの裏面に接 着剤を塗布して袋体に接着し、接着した３角形先方片と共に袋体の上部をガゼッ ト折りの内側に折り込み、かつ３角形後方片を真直口縁に沿って残存させ、しか る後真直口縁を、残存した３角形後方片と一緒に封止テープを当ててミシン縫い し、折り込んだ３角形先方片及び３角形後方片により吹込口を形成したことを特 徴とする粉体包装用弁付き紙袋。[Means for Solving the Problems] According to the means of the present invention, a square valve forming small piece of paper is applied to both the front and back sides of one corner of a straight mouth edge of a bag body with left and right gusset folds, and the small piece of paper is diagonally folded. Into a triangular front piece and a triangular rear piece, apply adhesive to the back surface of the triangular front piece only, and adhere it to the bag body, and fold the upper part of the bag body together with the adhered triangular front piece with a gusset fold. Folded inward and left the triangular rear piece along the straight edge, then sew the straight edge together with the remaining triangular rear piece with a sealing tape and sew it with a sewing machine A paper bag with a valve for powder packaging, characterized in that a blowing port is formed by a front piece and a triangular rear piece.

【０００５】[0005]

【考案の実施の形態】図１乃至図６は本考案に係る粉体包装用弁付き紙袋の 具体例を示す。図１において２は左右をガゼット折り１、１した袋体で真直口縁 ２ａの一隅部には表裏両面に弁形成小紙片３を当てる。この小紙片３は正方形で 対角線折目３ａを施してこれを境に３角形先方片３ｂと３角形後方片３ｃに分け る。そして３角形先方片３ｂのもの裏面に接着剤７を塗布して袋体２に接着する （図２参照）。次に接着した３角形先方片３ｂは対角線折目３ａより内側に折り 込む。その際袋体２のガゼット折り１、１部分も図３に示すＰ1,Ｐ2 から内側に 折り込む、かくして接着しない３角形後方片３ｃは真直口縁２ａに沿って残され る（図４参照）。その状態で図５に示すように封止テープ４を真直口縁２ａに２ つ折りして被せ、ミシン縫い５して吹込口６を形成する。1 to 6 show a specific example of a paper bag with a valve for powder packaging according to the present invention. In FIG. 1, reference numeral 2 denotes a bag body having left and right folded gussets 1 and 1, and a valve-forming small paper piece 3 is applied to both front and back surfaces at one corner of a straight edge 2a. This small piece of paper 3 is square and has a diagonal fold 3a, which is divided into a triangular front piece 3b and a triangular rear piece 3c. Then, the adhesive 7 is applied to the back surface of the triangular tip piece 3b and adhered to the bag body 2 (see FIG. 2). Next, the bonded triangular front piece 3b is folded inward from the diagonal fold 3a. At this time, the gusset folds 1 and 1 of the bag body 2 are also folded inward from P1 and P2 shown in FIG. 3, and thus the triangular rear piece 3c which is not adhered is left along the straight edge 2a (see FIG. 4). In this state, as shown in FIG. 5, the sealing tape 4 is folded in two on the straight edge 2a and sewn on the sewing machine 5 to form the blowing port 6.

【０００６】[0006]

【考案の効果】本考案は以上説明したように、従来の吹込口を形成するため の切り落し部分を施す必要がなく、小紙片３を袋体２の表裏両面に接着すること で完全な吹込口ができるため、無駄なく成形でき経済的利点は非常に大きい。As described above, according to the present invention, it is not necessary to provide a cut-off portion for forming a conventional blowing port, and the small paper piece 3 is adhered to both front and back surfaces of the bag body 2 to complete the blowing port. Therefore, it is possible to mold without waste and the economic advantage is very large.

【図面の簡単な説明】[Brief description of the drawings]

【図１】袋体に弁形成用小紙片を接着した正面図FIG. 1 is a front view of a valve forming small piece of paper adhered to a bag body.

【図２】図１のＡ−Ａ線における拡大断面図FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG.

【図３】小紙片の３角形先方片を袋体に接着して内側に
折り込んだ状態を示す正面図FIG. 3 is a front view showing a state where a triangular tip piece of a small paper piece is adhered to a bag body and folded inward.

【図４】図３の状態を示す斜視図FIG. 4 is a perspective view showing the state of FIG.

【図５】袋体の真直口縁に封止テープを被せてミシン縫
いした正面図FIG. 5 is a front view in which a sealing tape is put on the straight edge of the bag body and sewing is performed on the sewing machine.

【図６】粉体を充填した状態を示す斜視図FIG. 6 is a perspective view showing a state in which powder is filled.

【図７】従来例の説明図FIG. 7 is an explanatory view of a conventional example.

【符号の説明】[Explanation of symbols]

１ ガゼット折り部 ２ 袋体 ２ａ 真直口縁 ３ 弁形成用小紙片 ３ａ 対角線折目 ３ｂ ３角形先方片 ３ｃ ３角形後方片 ４ 封止テープ ５ ミシン縫い ６ 吹込口 ７ 接着剤 1 Gazette Folding Part 2 Bag Body 2a Straight Mouth Edge 3 Valve Forming Paper Piece 3a Diagonal Line Fold 3b Triangular Tip Piece 3c Trigonal Rear Piece 4 Sealing Tape 5 Sewing Machine 6 Blowing Port 7 Adhesive

Claims (1)

【実用新案登録請求の範囲】[Utility model registration claims] 【請求項１】左右をガゼット折り(１)(１)した袋体(２)
の真直口縁(２ａ)の一隅部表裏両面に方形の弁形成用小
紙片(３)を当て、小紙片(３)は対角線折目(３ａ)を施し
て３角形先方片(３ｂ)と３角形後方片(３ｃ)に分け、３
角形先方片(３ｂ)のみの裏面に接着剤(７)を塗布して袋
体(２)に接着し、接着した３角形先方片(３ｂ)と共に袋
体(２)の上部をガゼット折り(１)(１)の内側に折り込
み、かつ３角形後方片(３ｃ)を真直口縁(２ａ)に沿って
残存させ、しかる後真直口縁(２ａ)を、残存した３角形
後方片(３ｃ)と一緒に封止テープ(４)を当ててミシン縫
い(５)し、折り込んだ３角形先方片(３ｂ)及び３角形後
方片(３ｃ)により吹込口(６)を形成したことを特徴とす
る粉体包装用弁付き紙袋。1. A bag body (2) having left and right gussets folded (1) (1)
A square valve forming small piece (3) is applied to both front and back sides of one corner of the straight edge (2a) of the straight edge (2a). Divided into square rear pieces (3c), 3
Adhesive (7) is applied to the back surface of only the rectangular tip piece (3b) to adhere it to the bag body (2), and the upper portion of the bag body (2) is bonded to the bag body (2) with a gazette fold (1). ) (1) is folded inside, and the triangular rear piece (3c) is left along the straight edge (2a), and then the straight edge (2a) is replaced with the remaining triangular rear piece (3c). Powder which is characterized in that a blowing tape (6) is formed by a triangular front piece (3b) and a triangular rear piece (3c) which are sewn together with a sealing tape (4) and sewn with a sewing machine (5). A paper bag with a valve for body packaging.