JP2021155067A

JP2021155067A - Packaging bag

Info

Publication number: JP2021155067A
Application number: JP2020056290A
Authority: JP
Inventors: 真川辺; Makoto Kawabe; 隆治守中; Takaharu Morinaka
Original assignee: Oji Holdings Corp
Current assignee: Oji Holdings Corp
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-10-07
Anticipated expiration: 2040-03-26
Also published as: JP7384092B2; JP7626184B2; JP2023184617A

Abstract

【課題】収容物品と包装袋の内側面との間の空間に空気を簡易に充填し、緩衝材としての機能を容易く維持させることを可能にする包装袋を提供する。【解決手段】本発明は、開口部１１と胴部１２と底部１３と一対の側縁部１４ａ、１４ｂとを有する袋状のフィルムから成り、前記胴部１２の内部に空気が充填された状態で緩衝材として機能する緩衝体１を備える包装袋１００であって、前記緩衝体１は、前記開口部１１の周縁部を前記胴部１２の内側に折り返した折り返し部１１２と、前記折り返し部１１２のうち互いに対向する外側面１１３同士を接着し、前記緩衝体１の一方の側縁部１４ａから他方の側縁部１４ｂまで直線状に延びて所定位置で途切れている線状接着部１１４と、所定位置に形成され、前記緩衝体１の前記胴部１２の内部に空気を供給するための空気供給孔１１５とを備える。【選択図】図１An object of the present invention is to provide a packaging bag that can easily maintain its function as a cushioning material by easily filling air into a space between a stored article and the inner surface of the packaging bag. The present invention comprises a bag-shaped film having an opening 11, a body 12, a bottom 13, and a pair of side edges 14a, 14b, and the body 12 is filled with air. A packaging bag 100 is provided with a cushioning body 1 that functions as a cushioning material, and the cushioning body 1 has a folded part 112 in which the peripheral edge of the opening 11 is folded back inside the body part 12, and a folded part 112. A linear adhesive part 114 that adheres the opposing outer surfaces 113 to each other, extends linearly from one side edge 14a to the other side edge 14b of the buffer body 1, and is interrupted at a predetermined position; An air supply hole 115 is formed at a predetermined position to supply air into the body portion 12 of the buffer body 1. [Selection diagram] Figure 1

Description

本発明は、収容状態の物品を内部に設けられた緩衝体で保護するための包装袋に関する。 The present invention relates to a packaging bag for protecting an article in a contained state with a cushion provided inside.

従来、物品を包装袋で梱包する際、物品の運搬中に外部からの衝撃を緩和したり（衝撃緩和性）、物品が包装箱の中で上下左右に移動することを抑制するようにしたり（密閉性）するため、物品と包装袋の内側壁との間に緩衝材を配置することが広く行われている。当該緩衝材は、包装袋と別体で且つ複数の構成となっている場合が多く、開梱した後に別途廃棄する必要が生じ手間が掛かる場合が考えられる。 Conventionally, when packing an article in a packaging bag, the impact from the outside is cushioned during the transportation of the article (impact mitigation property), and the article is prevented from moving up, down, left and right in the packaging box (impact). It is widely practiced to place a cushioning material between the article and the inner wall of the packaging bag for (sealing). In many cases, the cushioning material is separate from the packaging bag and has a plurality of configurations, and it may be necessary to dispose of the cushioning material separately after unpacking, which may take time and effort.

そこで、外袋と内袋とが一体となっている包装用袋であって、外袋と内袋との間の空間に空気を充填することで収容物品の緩衝材として機能させることを図ったものが、例えば、特許文献１に開示されている。 Therefore, it is a packaging bag in which the outer bag and the inner bag are integrated, and by filling the space between the outer bag and the inner bag with air, it is intended to function as a cushioning material for the stored articles. Is disclosed in, for example, Patent Document 1.

特開２０１２−１７６７７０号公報Japanese Unexamined Patent Publication No. 2012-176770

しかしながら、特許文献１に記載の包装用袋では、外袋と内袋との間の空間に空気を充填し密封する際に専用の装置が別途必要となり、その装置を用意するのにコストが掛かり、操作するのに手間が掛かることが予想される。 However, in the packaging bag described in Patent Document 1, a dedicated device is required separately when the space between the outer bag and the inner bag is filled with air and sealed, and it is costly to prepare the device. , It is expected that it will take time to operate.

本発明の目的は、収容物品と包装袋の内側面との間の空間に空気を簡易に充填し、緩衝材としての機能を容易く維持させることを可能にする包装袋を提供することにある。 An object of the present invention is to provide a packaging bag capable of easily filling a space between a contained article and an inner surface of the packaging bag with air and easily maintaining a function as a cushioning material.

本発明による包装袋は、開口部と胴部と底部と一対の側縁部とを有する袋状のフィルムから成り、前記胴部の内部に空気が充填された状態で緩衝材として機能する緩衝体を備える包装袋であって、前記緩衝体は、前記開口部の周縁部を前記胴部の内側に折り返した折り返し部と、前記折り返し部のうち互いに対向する外側面同士を接着し、前記緩衝体の一方の側縁部から他方の側縁部まで直線状に延びて所定位置で途切れている線状接着部と、前記所定位置に形成され、前記緩衝体の前記胴部の内部に空気を供給するための空気供給孔とを備えることを特徴とするものである。 The packaging bag according to the present invention is made of a bag-shaped film having an opening, a body portion, a bottom portion, and a pair of side edges, and functions as a cushioning material when the inside of the body portion is filled with air. The cushioning body comprises a folded portion in which the peripheral edge portion of the opening is folded back inside the body portion, and the outer surfaces of the folded portions facing each other are adhered to each other, and the cushioning body is provided. A linear adhesive portion that extends linearly from one side edge portion to the other side edge portion and is interrupted at a predetermined position, and an air that is formed at the predetermined position and supplies air to the inside of the body portion of the cushioning body. It is characterized in that it is provided with an air supply hole for the purpose.

本発明によれば、上記袋状のフィルムにおいて折り返し部のうち互いに対向する外側面同士を一部を残して接着することで空気供給孔を形成し、当該空気供給孔を介して空気を充填したときに当該空気供給孔周辺が逆止弁として機能するので、充填された空気が簡単に包装袋の内部から逃げなくなる結果、上記衝撃緩和性および密閉性が、低コストおよび少ない手間で実現することが可能となる。 According to the present invention, in the bag-shaped film, an air supply hole is formed by adhering the outer surfaces of the folded portions facing each other, leaving a part thereof, and air is filled through the air supply hole. Since the area around the air supply hole sometimes functions as a check valve, the filled air cannot easily escape from the inside of the packaging bag, and as a result, the above-mentioned impact mitigation and airtightness can be realized at low cost and with little effort. Is possible.

本発明の第１実施形態に係る包装袋の斜視図である。It is a perspective view of the packaging bag which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る包装袋の展開平面図である。It is a development plan view of the packaging bag which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る包装袋の断面図であって、（ａ）は図２のＩＩＩａ−ＩＩＩａ方向断面図であり、（ｂ）は図２のＩＩＩｂ−ＩＩＩｂ方向断面図である。It is sectional drawing of the packaging bag which concerns on 1st Embodiment of this invention, (a) is the sectional view in the direction of IIIa-IIIa of FIG. 2, and (b) is the sectional view in the direction of IIIb-IIIb of FIG. 本発明の第１実施形態に係る包装袋であって、一部を折り返した組み立て途中の展開平面図である。It is a packaging bag which concerns on 1st Embodiment of this invention, and is the development plan view in the process of assembling which partially folded back. 本発明の第１実施形態に係る包装袋の断面図であって、（ａ）は図１のＶａ−Ｖａ方向断面図であり、（ｂ）は図１のＶｂ−Ｖｂ方向断面図である。It is sectional drawing of the packaging bag which concerns on 1st Embodiment of this invention, (a) is the sectional drawing in the Va-Va direction of FIG. 1, and (b) is the sectional view in the direction of Vb-Vb of FIG. 図３（ａ）に示す断面図の一部であって、包装袋の緩衝体の空気供給孔付近に掛かる内圧について説明するための図であり、（ａ）は包装袋の緩衝体に空気を充填するための細長のチューブを空気供給孔に差込み、空気を充填し始めた状態、（ｂ）は包装袋の緩衝体に空気を充填し終えた状態、（ｃ）は包装袋の緩衝体から細長のチューブを取り出した状態、をそれぞれ表す図である。It is a part of the cross-sectional view shown in FIG. 3A and is a diagram for explaining the internal pressure applied to the vicinity of the air supply hole of the cushioning body of the packaging bag, and FIG. An elongated tube for filling is inserted into the air supply hole and air is started to be filled, (b) is a state where the buffer of the packaging bag is completely filled with air, and (c) is from the buffer of the packaging bag. It is a figure which shows the state which took out the elongated tube, respectively. 本発明の第２実施形態に係る包装袋の展開平面図である。It is a development plan view of the packaging bag which concerns on 2nd Embodiment of this invention. 本発明の第３実施形態に係る包装袋の展開平面図である。It is a development plan view of the packaging bag which concerns on 3rd Embodiment of this invention. 本発明の第３実施形態に係る包装袋の断面図であって、図１のＶａ−Ｖａ方向断面図である。It is sectional drawing of the packaging bag which concerns on 3rd Embodiment of this invention, and is the sectional drawing in the Va-Va direction of FIG.

以下、図面を参照しながら本発明を実施するための形態を詳細に説明する。但し、本発明は本形態の態様に限定されるものではない。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the aspect of the present embodiment.

＜第１実施形態＞
＜構造＞
図１は本発明の第１実施形態に係る包装袋１００の斜視図であり、図２は本実施形態に係る包装袋１００の展開平面図であり、図３は本実施形態に係る包装袋１００の断面図であって、図３（ａ）は図２のＩＩＩａ−ＩＩＩａ方向断面図であり、図３（ｂ）は図２のＩＩＩｂ−ＩＩＩｂ方向断面図である。図３、後述の図５および図６では、説明の便宜上、緩衝体１の厚みを１本の線で表している。 <First Embodiment>
<Structure>
FIG. 1 is a perspective view of the packaging bag 100 according to the first embodiment of the present invention, FIG. 2 is a developed plan view of the packaging bag 100 according to the present embodiment, and FIG. 3 is a development plan view of the packaging bag 100 according to the present embodiment. 3 (a) is a cross-sectional view taken in the direction of IIIa-IIIa of FIG. 2, and FIG. 3 (b) is a cross-sectional view taken in the direction of IIIb-IIIb of FIG. In FIG. 3, FIGS. 5 and 6 described later, the thickness of the buffer 1 is represented by a single line for convenience of explanation.

本発明に係る包装袋１００は、小物（例えば腕時計、図中では楕円柱で表現）等の物品３を内部に収容し、収容した物品３と包装袋１００の内側壁との間に空気を充填することが可能な空間を有する袋状のフィルムを備えるものである。 The packaging bag 100 according to the present invention houses an article 3 such as a small item (for example, a watch, represented by an elliptical pillar in the drawing) inside, and fills air between the housed article 3 and the inner side wall of the packaging bag 100. It is provided with a bag-shaped film having a space capable of forming a bag.

本実施形態に係る包装袋１００は、図１および図２に示すように、開口部１１と胴部１２と底部１３と一対の側縁部１４ａ、１４ｂとを有する袋状のフィルムから成る緩衝体１と、紙層２で構成されている。 As shown in FIGS. 1 and 2, the packaging bag 100 according to the present embodiment is a buffer made of a bag-shaped film having an opening 11, a body portion 12, a bottom portion 13, and a pair of side edge portions 14a and 14b. It is composed of 1 and 2 paper layers.

緩衝体１は、胴部１２の内部に空気が充填された状態で緩衝材として機能するものである。緩衝体１と紙層２とは、互いに対向する面同士を、接着部４を介して接着されている。 The cushioning body 1 functions as a cushioning material in a state where the inside of the body portion 12 is filled with air. The buffer 1 and the paper layer 2 are adhered to each other with their surfaces facing each other via an adhesive portion 4.

接着部４は、図２に示すように、緩衝体１の一方の側縁部１４ａから他方の側縁部１４ｂまで、直線状に延在するように、開口部１１側に１本、胴部１２側に１本の計２本設けられている。本実施形態では、接着部４は直線状であるが、本発明ではこれに限られず、点状のものでも良い。また、本実施形態では、緩衝体１に空気が充填され緩衝体１が膨張し形状変化することを考慮して、紙層２の張った状態に対して緩衝体１は少し余裕のある状態で、紙層２に対して緩衝体１が２本の接着部４を介して接着されていることが好ましい。 As shown in FIG. 2, one adhesive portion 4 is provided on the opening 11 side so as to extend linearly from one side edge portion 14a of the buffer body 1 to the other side edge portion 14b. A total of two are provided on the 12 side. In the present embodiment, the adhesive portion 4 is linear, but the present invention is not limited to this, and the adhesive portion 4 may be point-shaped. Further, in the present embodiment, in consideration of the fact that the buffer body 1 is filled with air and the buffer body 1 expands and changes its shape, the buffer body 1 has a little margin with respect to the state in which the paper layer 2 is stretched. , It is preferable that the buffer 1 is adhered to the paper layer 2 via the two adhesive portions 4.

また、緩衝体１は、図１および図２に示すように、開口部１１の周縁部を胴部１２の内側に折り返した折り返し部１１２と、折り返し部１１２のうち互いに対向する外側面１１３同士を接着し、緩衝体１の一方の側縁部１４ａから他方の側縁部１４ｂまで直線状に延びて所定位置で途切れている線状接着部１１４と、所定位置に形成され、緩衝体１の胴部１２の内部に空気を供給するための空気供給孔１１５とを備える。 Further, as shown in FIGS. 1 and 2, the shock absorber 1 has a folded-back portion 112 in which the peripheral edge portion of the opening 11 is folded back inside the body portion 12, and the outer surfaces 113 of the folded-back portion 112 facing each other. The body of the buffer 1 which is formed at a predetermined position with a linear adhesive portion 114 which is bonded and extends linearly from one side edge portion 14a of the buffer body 1 to the other side edge portion 14b and is interrupted at a predetermined position. An air supply hole 115 for supplying air is provided inside the portion 12.

緩衝体１の底部１３において、第１層（上層）と第２層（下層）とが連続しており、左側縁部１４ａに沿って直線状に延在するように接着部１４１ａによって接着されており、右側縁部１４ｂに沿って直線状に延在するように接着部１４１ｂによって接着されていることによって、緩衝体１は、袋状になっている。 At the bottom 13 of the buffer 1, the first layer (upper layer) and the second layer (lower layer) are continuous and are bonded by the adhesive portion 141a so as to extend linearly along the left edge portion 14a. The buffer 1 is in the shape of a bag because it is adhered by the adhesive portion 141b so as to extend linearly along the right edge portion 14b.

また、紙層２において、緩衝体１の空気供給孔１１５が形成された位置に、配置されるように、紙層２の端縁から中央に向かって第１切込み線Ｃ１ａ、第２切込み線Ｃ１ｂを形成することで、後述の細長の空気供給チューブＳが差し込み可能な空気供給孔１１５の位置を示唆する差込口２５１が設けられる。この差込口２５１は、紙層２の製造工程において、紙層２に緩衝体１を貼り合わせる際やその後に、紙層２の差込口２５１の位置と、緩衝体１の空気供給孔１１５の位置とが合わせられる。 Further, in the paper layer 2, the first cut line C1a and the second cut line C1b are arranged from the edge of the paper layer 2 toward the center so as to be arranged at the position where the air supply hole 115 of the buffer body 1 is formed. Is provided to provide an insertion port 251 that suggests the position of the air supply hole 115 into which the elongated air supply tube S described later can be inserted. In the manufacturing process of the paper layer 2, the insertion port 251 is used when and after the buffer 1 is attached to the paper layer 2, the position of the insertion port 251 of the paper layer 2 and the air supply hole 115 of the buffer 1. Is aligned with the position of.

緩衝体１は、包装袋１００に収容される物品３を取り囲むように配置構成され、包装袋１００は、取り囲むように配置構成された緩衝体１を覆う１層以上の紙層２を有する。 The cushioning body 1 is arranged and configured so as to surround the article 3 housed in the packaging bag 100, and the packaging bag 100 has one or more layers of paper 2 covering the cushioning body 1 arranged so as to surround the cushioning body 1.

紙層２は、図１および図２に示すように、第１面部２１、第２面部２２、第３面部２３、第４面部２４、第５面部２５、第１左側折り畳み部Ｆａ、第２左側折り畳み部Ｆｄ、第１右側折り畳み部Ｆｂ、第２右側折り畳み部Ｆｃを備える。 As shown in FIGS. 1 and 2, the paper layer 2 has a first surface portion 21, a second surface portion 22, a third surface portion 23, a fourth surface portion 24, a fifth surface portion 25, a first left side folding portion Fa, and a second left side. A folding portion Fd, a first right folding portion Fb, and a second right folding portion Fc are provided.

第２面部２２は第１側面部２２１と第２側面部２２２とを備え、第３面部２３は第３側面部２３１と第４側面部２３２とを備える。 The second surface portion 22 includes a first side surface portion 221 and a second side surface portion 222, and the third surface portion 23 includes a third side surface portion 231 and a fourth side surface portion 232.

第１左側折り畳み部Ｆａは、第１左面部２１ａ、第２左面部２２１ａ、第３左面部２２２ａ、第４左面部２３１ａ、第５左面部２３２ａ、第６左面部２４ａ、第７左面部２５ａを備える。 The first left side folding portion Fa includes a first left surface portion 21a, a second left surface portion 221a, a third left surface portion 222a, a fourth left surface portion 231a, a fifth left surface portion 232a, a sixth left surface portion 24a, and a seventh left surface portion 25a. Be prepared.

第２左側折り畳み部Ｆｄは、第６面部２６を備える。本実施形態では、第２左側折り畳み部Ｆｄは、第６面部２６の１面で構成されているが、ほかの折り畳み部と同様の構成であってもよい。 The second left side folding portion Fd includes a sixth surface portion 26. In the present embodiment, the second left side folding portion Fd is composed of one surface of the sixth surface portion 26, but may have the same configuration as the other folding portions.

第１右側折り畳み部Ｆｂは、第１右面部２１ｂ、第２右面部２２１ｂ、第３右面部２２２ｂ、第４右面部２３１ｂ、第５右面部２３２ｂ、第６右面部２４ｂ、第７右面部２５ｂを備える。 The first right side folding portion Fb includes a first right face portion 21b, a second right face portion 221b, a third right face portion 222b, a fourth right face portion 231b, a fifth right face portion 232b, a sixth right face portion 24b, and a seventh right face portion 25b. Be prepared.

第２右側折り畳み部Ｆｃは、第１右端面部２１ｃ、第２右端面部２２１ｃ、第３右端面部２２２ｃ、第４右端面部２３１ｃ、第５右端面部２３２ｃ、第６右端面部２４ｃ、第７右端面部２５ｃを備える。 The second right side folding portion Fc includes a first right end face portion 21c, a second right end face portion 221c, a third right end face portion 222c, a fourth right end face portion 231c, a fifth right end face portion 232c, a sixth right end face portion 24c, and a seventh right end face portion 25c. Be prepared.

第１面部２１は第１罫線Ｌ１を介して第１側面部２２１に接続しており、第１側面部２２１は第１３罫線Ｌ１３を介して第２側面部２２２に接続している。 The first side surface portion 21 is connected to the first side surface portion 221 via the first ruled line L1, and the first side surface portion 221 is connected to the second side surface portion 222 via the thirteenth ruled line L13.

第１面部２１は第２罫線Ｌ２を介して第３側面部２３１に接続しており、第３側面部２３１は第２４罫線Ｌ２４を介して第４側面部２３２に接続している。 The first surface portion 21 is connected to the third side surface portion 231 via the second ruled line L2, and the third side surface portion 231 is connected to the fourth side surface portion 232 via the 24th ruled line L24.

第１面部２１は第５罫線Ｌ５を介して第１左面部２１ａに接続しており、第７罫線Ｌ７を介して第１右面部２１ｂに接続している。 The first surface portion 21 is connected to the first left surface portion 21a via the fifth ruled line L5, and is connected to the first right surface portion 21b via the seventh ruled line L7.

第１左面部２１ａは第６罫線Ｌ６を介して第６面部２６に接続しており、第１右面部２１ｂは第８罫線Ｌ８を介して第１右端面部２１ｃに接続している。 The first left surface portion 21a is connected to the sixth surface portion 26 via the sixth ruled line L6, and the first right surface portion 21b is connected to the first right end surface portion 21c via the eighth ruled line L8.

第４面部２４は第３罫線Ｌ３を介して第２側面部２２２に接続しており、第５面部２５は第４罫線Ｌ４を介して第４側面部２３２に接続している。 The fourth surface portion 24 is connected to the second side surface portion 222 via the third ruled line L3, and the fifth surface portion 25 is connected to the fourth side surface portion 232 via the fourth ruled line L4.

第１左面部２１ａと第１側面部２２１とは第２左面部２２１ａを介して接続されており、第１左面部２１ａは第１左罫線Ｌ１ａを介して第２左面部２２１ａに接続しており、第１側面部２２１は第５１罫線Ｌ５１を介して第２左面部２２１ａに接続している。 The first left surface portion 21a and the first side surface portion 221 are connected via the second left surface portion 221a, and the first left surface portion 21a is connected to the second left surface portion 221a via the first left ruled line L1a. , The first side surface portion 221 is connected to the second left surface portion 221a via the 51st ruled line L51.

第２左面部２２１ａと第２側面部２２２とは第３左面部２２２ａを介して接続されており、第２左面部２２１ａは第２左罫線Ｌ１３ａを介して第３左面部２２２ａに接続しており、第２側面部２２２は第５２罫線Ｌ５２を介して第３左面部２２２ａに接続している。 The second left surface portion 221a and the second side surface portion 222 are connected to each other via the third left surface portion 222a, and the second left surface portion 221a is connected to the third left surface portion 222a via the second left ruled line L13a. , The second side surface portion 222 is connected to the third left surface portion 222a via the 52nd ruled line L52.

第３左面部２２２ａと第４面部２４とは第６左面部２４ａを介して接続されており、第３左面部２２２ａは第３左罫線Ｌ３ａを介して第６左面部２４ａに接続しており、第４面部２４は第５３罫線Ｌ５３を介して第６左面部２４ａに接続している。 The third left surface portion 222a and the fourth surface portion 24 are connected via the sixth left surface portion 24a, and the third left surface portion 222a is connected to the sixth left surface portion 24a via the third left ruled line L3a. The fourth surface portion 24 is connected to the sixth left surface portion 24a via the 53rd ruled line L53.

第１左面部２１ａと第３側面部２３１とは第４左面部２３１ａを介して接続されており、第１左面部２１ａは第４左罫線Ｌ２ａを介して第４左面部２３１ａに接続しており、第３側面部２３１は第５４罫線Ｌ５４を介して第４左面部２３１ａに接続している。 The first left surface portion 21a and the third side surface portion 231 are connected via the fourth left surface portion 231a, and the first left surface portion 21a is connected to the fourth left surface portion 231a via the fourth left ruled line L2a. , The third side surface portion 231 is connected to the fourth left surface portion 231a via the 54th ruled line L54.

第４左面部２３１ａと第４側面部２３２とは第５左面部２３２ａを介して接続されており、第４左面部２３１ａは第５左罫線Ｌ２４ａを介して第５左面部２３２ａに接続しており、第４側面部２３２は第５５罫線Ｌ５５を介して第５左面部２３２ａに接続している。 The fourth left surface portion 231a and the fourth side surface portion 232 are connected via the fifth left surface portion 232a, and the fourth left surface portion 231a is connected to the fifth left surface portion 232a via the fifth left ruled line L24a. The fourth side surface portion 232 is connected to the fifth left surface portion 232a via the 55th ruled line L55.

第５左面部２３２ａと第５面部２５とは第７左面部２５ａを介して接続されており、第５左面部２３２ａは第６左罫線Ｌ４ａを介して第７左面部２５ａに接続しており、第５面部２５は第５６罫線Ｌ５６を介して第７左面部２５ａに接続している。 The fifth left surface portion 232a and the fifth surface portion 25 are connected via the seventh left surface portion 25a, and the fifth left surface portion 232a is connected to the seventh left surface portion 25a via the sixth left ruled line L4a. The fifth surface portion 25 is connected to the seventh left surface portion 25a via the 56th ruled line L56.

第１右面部２１ｂと第１側面部２２１とは第２右面部２２１ｂを介して接続されており、第１右面部２１ｂは第１右罫線Ｌ１ｂを介して第２右面部２２１ｂに接続しており、第１側面部２２１は第７１罫線Ｌ７１を介して第２右面部２２１ｂに接続している。 The first right surface portion 21b and the first side surface portion 221 are connected to each other via the second right surface portion 221b, and the first right surface portion 21b is connected to the second right surface portion 221b via the first right ruled line L1b. , The first side surface portion 221 is connected to the second right surface portion 221b via the 71st ruled line L71.

第２右面部２２１ｂと第２側面部２２２とは第３右面部２２２ｂを介して接続されており、第２右面部２２１ｂは第２右罫線Ｌ１３ｂを介して第３右面部２２２ｂに接続しており、第２側面部２２２は第７２罫線Ｌ７２を介して第３右面部２２２ｂに接続している。 The second right surface portion 221b and the second side surface portion 222 are connected to each other via the third right surface portion 222b, and the second right surface portion 221b is connected to the third right surface portion 222b via the second right ruled line L13b. , The second side surface portion 222 is connected to the third right surface portion 222b via the 72nd ruled line L72.

第３右面部２２２ｂと第４面部２４とは第６右面部２４ｂを介して接続されており、第３右面部２２２ｂは第３右罫線Ｌ３ｂを介して第６右面部２４ｂに接続しており、第４面部２４は第７３罫線Ｌ７３を介して第６右面部２４ｂに接続している。 The third right surface portion 222b and the fourth surface portion 24 are connected via the sixth right surface portion 24b, and the third right surface portion 222b is connected to the sixth right surface portion 24b via the third right ruled line L3b. The fourth surface portion 24 is connected to the sixth right surface portion 24b via the 73rd ruled line L73.

第１右面部２１ｂと第３側面部２３１とは第４右面部２３１ｂを介して接続されており、第１右面部２１ｂは第４右罫線Ｌ２ｂを介して第４右面部２３１ｂに接続しており、第３側面部２３１は第７４罫線Ｌ７４を介して第４右面部２３１ｂに接続している。 The first right surface portion 21b and the third side surface portion 231 are connected via the fourth right surface portion 231b, and the first right surface portion 21b is connected to the fourth right surface portion 231b via the fourth right ruled line L2b. , The third side surface portion 231 is connected to the fourth right surface portion 231b via the 74th ruled line L74.

第４右面部２３１ｂと第４側面部２３２とは第５右面部２３２ｂを介して接続されており、第４右面部２３１ｂは第５右罫線Ｌ２４ｂを介して第５右面部２３２ｂに接続しており、第４側面部２３２は第７５罫線Ｌ７５を介して第５右面部２３２ｂに接続している。 The fourth right surface portion 231b and the fourth side surface portion 232 are connected via the fifth right surface portion 232b, and the fourth right surface portion 231b is connected to the fifth right surface portion 232b via the fifth right ruled line L24b. , The fourth side surface portion 232 is connected to the fifth right surface portion 232b via the 75th ruled line L75.

第５右面部２３２ｂと第５面部２５とは第７右面部２５ｂを介して接続されており、第５右面部２３２ｂは第６右罫線Ｌ４ｂを介して第７右面部２５ｂに接続しており、第５面部２５は第７６罫線Ｌ７６を介して第７右面部２５ｂに接続している。 The fifth right surface portion 232b and the fifth surface portion 25 are connected via the seventh right surface portion 25b, and the fifth right surface portion 232b is connected to the seventh right surface portion 25b via the sixth right ruled line L4b. The fifth surface portion 25 is connected to the seventh right surface portion 25b via the 76th ruled line L76.

第１右端面部２１ｃと第２右面部２２１ｂとは第２右端面部２２１ｃを介して接続されており、第１右端面部２１ｃは第１右端罫線Ｌ１ｃを介して第２右端面部２２１ｃに接続しており、第２右面部２２１ｂは第８１罫線Ｌ８１を介して第２右端面部２２１ｃに接続している。 The first right end surface portion 21c and the second right surface portion 221b are connected via the second right end surface portion 221c, and the first right end surface portion 21c is connected to the second right end surface portion 221c via the first right end ruled line L1c. , The second right surface portion 221b is connected to the second right end surface portion 221c via the 81st ruled line L81.

第２右端面部２２１ｃと第３右面部２２２ｂとは第３右端面部２２２ｃを介して接続されており、第２右端面部２２１ｃは第２右端罫線Ｌ１３ｃを介して第３右端面部２２２ｃに接続しており、第３右面部２２２ｂは第８２罫線Ｌ８２を介して第３右端面部２２２ｃに接続している。 The second right end surface portion 221c and the third right end surface portion 222b are connected via the third right end surface portion 222c, and the second right end surface portion 221c is connected to the third right end surface portion 222c via the second right end ruled line L13c. , The third right surface portion 222b is connected to the third right end surface portion 222c via the 82nd ruled line L82.

第３右端面部２２２ｃと第６右面部２４ｂとは第６右端面部２４ｃを介して接続されており、第３右端面部２２２ｃは第３右端罫線Ｌ３ｃを介して第６右端面部２４ｃに接続しており、第６右面部２４ｂは第８３罫線Ｌ８３を介して第６右端面部２４ｃに接続している。 The third right end face portion 222c and the sixth right face portion 24b are connected via the sixth right end face portion 24c, and the third right end face portion 222c is connected to the sixth right end face portion 24c via the third right end ruled line L3c. , The sixth right end surface portion 24b is connected to the sixth right end surface portion 24c via the 83rd ruled line L83.

第１右端面部２１ｃと第４右面部２３１ｂとは第４右端面部２３１ｃを介して接続されており、第１右端面部２１ｃは第４右端罫線Ｌ２ｃを介して第４右端面部２３１ｃに接続しており、第４右面部２３１ｂは第８４罫線Ｌ８４を介して第４右端面部２３１ｃに接続している。 The first right end face portion 21c and the fourth right face portion 231b are connected via the fourth right end face portion 231c, and the first right end face portion 21c is connected to the fourth right end face portion 231c via the fourth right end ruled line L2c. , The fourth right surface portion 231b is connected to the fourth right end surface portion 231c via the 84th ruled line L84.

第４右端面部２３１ｃと第５右面部２３２ｂとは第５右端面部２３２ｃを介して接続されており、第４右端面部２３１ｃは第５右端罫線Ｌ２４ｃを介して第５右端面部２３２ｃに接続しており、第５右面部２３２ｂは第８５罫線Ｌ８５を介して第５右端面部２３２ｃに接続している。 The fourth right end face portion 231c and the fifth right face portion 232b are connected via the fifth right end face portion 232c, and the fourth right end face portion 231c is connected to the fifth right end face portion 232c via the fifth right end ruled line L24c. , The fifth right surface portion 232b is connected to the fifth right end surface portion 232c via the 85th ruled line L85.

第５右端面部２３２ｃと第７右面部２５ｂとは第７右端面部２５ｃを介して接続されており、第５右端面部２３２ｃは第６右端罫線Ｌ４ｃを介して第７右端面部２５ｃに接続しており、第７右面部２５ｂは第８６罫線Ｌ８６を介して第７右端面部２５ｃに接続している。 The fifth right end face portion 232c and the seventh right end face portion 25b are connected via the seventh right end face portion 25c, and the fifth right end face portion 232c is connected to the seventh right end face portion 25c via the sixth right end ruled line L4c. , The 7th right end surface portion 25b is connected to the 7th right end surface portion 25c via the 86th ruled line L86.

緩衝体１は、合成樹脂製のフィルムで構成される。緩衝体１は、２層以上のフィルムを袋状に溶着することで形成されている。緩衝体１は、上述したように、緩衝体１の胴部１２の内部に空気が充填されることによって、包装袋１００の緩衝材となっている。本実施形態では、紙層２は、クラフト紙で構成される。当該クラフト紙は、ＪＩＳＰ３４０１に規定されるものが使用されうる。 The buffer 1 is made of a synthetic resin film. The cushioning body 1 is formed by welding two or more layers of films in a bag shape. As described above, the cushioning body 1 serves as a cushioning material for the packaging bag 100 by filling the inside of the body portion 12 of the cushioning body 1 with air. In this embodiment, the paper layer 2 is made of kraft paper. As the kraft paper, those specified in JIS P 3401 may be used.

本発明の効果を奏する上で、好ましくは、クラフト紙の坪量は５０ｇ／ｍ²以上、１５０ｇ／ｍ²以下であり、より好ましくは、坪量は７０ｇ／ｍ²以上である。 In order to achieve the effects of the present invention, the basis weight of kraft paper is preferably 50 g / m ² or more and 150 g / m ² or less, and more preferably 70 g / m ² or more.

紙層２は、本実施形態によるクラフト紙に限られず、クラフト紙には、さらに合成樹脂繊維を含む層が積層されてもよい。 The paper layer 2 is not limited to the kraft paper according to the present embodiment, and a layer containing synthetic resin fibers may be further laminated on the kraft paper.

また、本実施形態による包装袋は、上面視で略矩形のものであるがこれに限られず、包装袋１００は、角底貼り袋、六角底貼り袋等の軽包装袋、クラフト紙等からなる重包装袋の群から選択されるいずれかの貼り袋であってもよい。 Further, the packaging bag according to the present embodiment is substantially rectangular in top view, but is not limited to this, and the packaging bag 100 is made of a light packaging bag such as a square bottom bag, a hexagonal bottom bag, kraft paper, or the like. It may be any sticking bag selected from the group of heavy packaging bags.

＜製袋機による包装袋製造の流れ＞
本実施形態に係る包装袋の製造工程では製袋機が用いられる。夫々ロールから供給されたウェブ状の紙層２とフィルム層（緩衝体１の元になるフィルム）は流れとともに重ね合わされ、紙層とフィルム層は必要に応じて糊付けあるいは溶着され包装袋の袋材が形成される。 <Flow of packaging bag manufacturing by bag making machine>
A bag making machine is used in the manufacturing process of the packaging bag according to the present embodiment. The web-like paper layer 2 and the film layer (the film that forms the basis of the cushioning body 1) supplied from the rolls are superposed with the flow, and the paper layer and the film layer are glued or welded as necessary to form a packaging bag material. Is formed.

各層が重ね合わされた袋材は、流れ方向の両端が内側に折りたたまれて筒状に貼り合わされることで、折り返し部１１２が形成され、折り返し部１１２のうち互いに対向する外側面１１３同士が線状接着部１１４により接着され、流れ方向と直交する方向において両端縁が貼り合わされ接着部１４１ａおよび接着部１４１ｂにより接着された後、一定の長さの筒状物（包装袋１００の１つ分）に断裁される。 In the bag material in which the layers are overlapped, both ends in the flow direction are folded inward and bonded to each other in a cylindrical shape to form a folded portion 112, and the outer surfaces 113 of the folded portions 112 facing each other are linear. After being adhered by the adhesive portion 114, both end edges are bonded together in a direction orthogonal to the flow direction and bonded by the adhesive portion 141a and the adhesive portion 141b, the cylinder-shaped object (one of the packaging bags 100) having a certain length is formed. It will be cut.

上述したように、折り返し部１１２には逆止弁の機能を有する空気供給孔１１５が形成される。本発明者は、空気供給孔１１５の形成の仕方を工夫し、通常の重包装袋の製造工程に組み込んで行うことが出来るようにした。 As described above, the folded-back portion 112 is formed with an air supply hole 115 having a function of a check valve. The present inventor has devised a method of forming the air supply hole 115 so that it can be incorporated into a normal manufacturing process of a heavy-duty packaging bag.

また、本発明者は、折り返し部１１２および空気供給孔１１５が逆止弁として機能する上で、包装袋１００の折り返し部１１２の上記流れ方向に直交する方向（図２では左右方向）における長さ（つまり、開口部１１の周縁部を胴部１２の内側に折り返したときの折り返し部１１２の折り返し幅）としては、緩衝体１に使用されるフィルム層（プラスチック製のフィルム）の厚さが５０μｍである場合、４０ｍｍ以上が好ましいことを発見した。これに加えて、本発明者は、細長の空気供給チューブＳを用いて空気供給孔１１５に差し込んで、緩衝体１内に空気を吹き込んだり、逆に緩衝体１内から空気供給チューブＳを介して空気を抜いたりすることを考慮すると、当該折り返し部１１２の折り返し幅は、２００ｍｍ程度以下であることが好ましいことを発見した。この折り返し部１１２の折り返し幅は、緩衝体１に使用されるフィルム層が、より薄く柔軟なプラスチック製のフィルムである場合、４０ｍｍよりも短くなりうる。 Further, the present inventor presents the length of the folded-back portion 112 of the packaging bag 100 in the direction orthogonal to the flow direction (left-right direction in FIG. 2) so that the folded-back portion 112 and the air supply hole 115 function as check valves. (That is, the folded width of the folded portion 112 when the peripheral edge portion of the opening 11 is folded back inside the body portion 12) is such that the thickness of the film layer (plastic film) used for the buffer 1 is 50 μm. In the case of, it was found that 40 mm or more is preferable. In addition to this, the present inventor uses an elongated air supply tube S to insert the air into the air supply hole 115 to blow air into the buffer 1, or conversely, from the inside of the buffer 1 via the air supply tube S. It was discovered that the folded width of the folded portion 112 is preferably about 200 mm or less in consideration of removing air. The folded width of the folded portion 112 can be shorter than 40 mm when the film layer used for the cushioning body 1 is a thinner and flexible plastic film.

緩衝体１に使用されるフィルム層の材質としては、包装資材として用いられるような、ポリエチレン、（CPP、OPP等の）ポリプロピレン、PET、ポリアミド等から、柔軟で熱加工可能な樹脂全般が使用可能であり、特に柔軟で熱加工性に優れたCPPは好ましく用いられる。 As the material of the film layer used for the cushioning body 1, flexible and heat-processable resins in general can be used from polyethylene, polypropylene (CPP, OPP, etc.), PET, polyamide, etc., which are used as packaging materials. Therefore, CPP, which is particularly flexible and has excellent heat workability, is preferably used.

＜梱包手順＞
図４は本実施形態に係る包装袋１００であって、一部を折り返した組み立て途中の展開平面図であり、図５は本実施形態に係る包装袋１００の断面図であって、図５（ａ）は図１のＶａ−Ｖａ方向断面図であり、図５（ｂ）は図１のＶｂ−Ｖｂ方向断面図である。図５中、ドット状のハッチング部分は充填空気を表す。 <Packing procedure>
FIG. 4 is a development plan view of the packaging bag 100 according to the present embodiment, which is partially folded back during assembly, and FIG. 5 is a cross-sectional view of the packaging bag 100 according to the present embodiment. a) is a cross-sectional view in the Va-Va direction of FIG. 1, and FIG. 5 (b) is a cross-sectional view in the Vb-Vb direction of FIG. In FIG. 5, the dot-shaped hatched portions represent filled air.

袋状のフィルムである緩衝体１の中に物品３を入れて、紙層２に形成された罫線に沿って折り返していき、第１左側折り畳み部Ｆａ、第２左側折り畳み部Ｆｄ、第１右側折り畳み部Ｆｂ、および第２右側折り畳み部Ｆｃをそれぞれ折り畳み、折り畳んだときに出来上がった端部を封止し、空気供給孔１１５から空気を充填すると、図１に示すような包装袋が出来上がる。 The article 3 is put in the cushioning body 1 which is a bag-shaped film, and is folded back along the ruled line formed on the paper layer 2, and the first left side folding part Fa, the second left side folding part Fd, and the first right side are folded. When the folded portion Fb and the second right folded portion Fc are each folded, the end portion formed when folded is sealed, and air is filled through the air supply hole 115, a packaging bag as shown in FIG. 1 is completed.

具体的には、先ず、緩衝体１の中に物品３を入れた状態で、紙層２の一対の側部にマチ部がそれぞれ形成されるように、第１罫線Ｌ１、第１左罫線Ｌ１ａ、第１右罫線Ｌ１ｂ、および第１右端罫線Ｌ１ｃを谷折り、第１３罫線Ｌ１３、第２左罫線Ｌ１３ａ、第２右罫線Ｌ１３ｂ、および第２右端罫線Ｌ１３ｃを山折り、第３罫線Ｌ３、第３左罫線Ｌ３ａ、第３右罫線Ｌ３ｂ、および第３右端罫線Ｌ３ｃを谷折りして、第１側面部２２１、第２左面部２２１ａ、第２右面部２２１ｂ、および第２右端面部２２１ｃ、第２側面部２２２、第３左面部２２２ａ、第３右面部２２２ｂ、および第３右端面部２２２ｃ、並びに第４面部２４、第６左面部２４ａ、第６右面部２４ｂ、および第６右端面部２４ｃを、第１面部２１、第１左面部２１ａ、第１右面部２１ｂ、および第１右端面部２１ｃに対して折り返し、第２罫線Ｌ２、第４左罫線Ｌ２ａ、第４右罫線Ｌ２ｂ、および第４右端罫線Ｌ２ｃを谷折り、第２４罫線Ｌ２４、第５左罫線Ｌ２４ａ、第５右罫線Ｌ２４ｂ、および第５右端罫線Ｌ２４ｃを山折り、第４罫線Ｌ４、第６左罫線Ｌ４ａ、第６右罫線Ｌ４ｂ、および第６右端罫線Ｌ４ｃを谷折りして、第３側面部２３１、第４左面部２３１ａ、第４右面部２３１ｂ、および第４右端面部２３１ｃ、第４側面部２３２、第５左面部２３２ａ、第５右面部２３２ｂ、および第５右端面部２３２ｃ、並びに第５面部２５、第７左面部２５ａ、第７右面部２５ｂ、および第７右端面部２５ｃを、第１面部２１、第１左面部２１ａ、第１右面部２１ｂ、および第１右端面部２１ｃに対して折り返すことにより、図４に示す状態になる。 Specifically, first, with the article 3 placed in the buffer 1, the first ruled line L1 and the first left ruled line L1a are formed so that the gusset portions are formed on the pair of side portions of the paper layer 2, respectively. , 1st right ruled line L1b and 1st right edge ruled line L1c are valley-folded, 13th ruled line L13, 2nd left ruled line L13a, 2nd right ruled line L13b, and 2nd right edge ruled line L13c are mountain-folded, 3rd ruled line L3, 1st 3 Left ruled line L3a, third right ruled line L3b, and third right end ruled line L3c are folded in a valley, and the first side surface portion 221 and the second left surface portion 221a, the second right surface portion 221b, and the second right end surface portion 221c and the second The side surface portion 222, the third left surface portion 222a, the third right surface portion 222b, and the third right end surface portion 222c, and the fourth surface portion 24, the sixth left surface portion 24a, the sixth right surface portion 24b, and the sixth right end surface portion 24c are Folded back to the first surface portion 21, the first left surface portion 21a, the first right surface portion 21b, and the first right end surface portion 21c, the second ruled line L2, the fourth left ruled line L2a, the fourth right ruled line L2b, and the fourth right end ruled line L2c. Fold the 24th ruled line L24, the 5th left ruled line L24a, the 5th right ruled line L24b, and the 5th right end ruled line L24c in a mountain fold. 6 The right end ruled line L4c is folded in a valley, and the third side surface portion 231 and the fourth left surface portion 231a, the fourth right surface portion 231b, and the fourth right end surface portion 231c, the fourth side surface portion 232, the fifth left surface portion 232a, and the fifth right. The surface portion 232b, the fifth right end surface portion 232c, and the fifth surface portion 25, the seventh left surface portion 25a, the seventh right surface portion 25b, and the seventh right end surface portion 25c are the first surface portion 21, the first left surface portion 21a, and the first right. By folding back the surface portion 21b and the first right end surface portion 21c, the state shown in FIG. 4 is obtained.

次に、第２右側折り畳み部Ｆｃを、第８罫線Ｌ８、第８１罫線８１、第８２罫線８２、第８３罫線８３、第８４罫線８４、第８５罫線８５、第８６罫線８６を介して、内側に折り返し、さらに、第１右側折り畳み部Ｆｂを、第７罫線Ｌ７、第７１罫線７１、第７２罫線７２、第７３罫線７３、第７４罫線７４、第７５罫線７５、第７６罫線７６を介して、内側に折り返し、第４面部２４や第５面部２５に固定手段（不図示、例えばテープ）により固定する。 Next, the second right side folding portion Fc is inside via the 8th ruled line L8, the 81st ruled line 81, the 82nd ruled line 82, the 83rd ruled line 83, the 84th ruled line 84, the 85th ruled line 85, and the 86th ruled line 86. Further, the first right side folding portion Fb is passed through the 7th ruled line L7, the 71st ruled line 71, the 72nd ruled line 72, the 73rd ruled line 73, the 74th ruled line 74, the 75th ruled line 75, and the 76th ruled line 76. , Folded inward and fixed to the fourth surface portion 24 and the fifth surface portion 25 by fixing means (not shown, for example, tape).

そして、第２左側折り畳み部Ｆｄを、第６罫線Ｌ６を介して、内側に折り返し、さらに、第１左側折り畳み部Ｆａを、第５罫線Ｌ５、第５１罫線５１、第５２罫線５２、第５３罫線５３、第５４罫線５４、第５５罫線５５、第５６罫線５６を介して、内側に折り返し、第４面部２４や第５面部２５に固定手段（不図示、例えばテープ）により固定する。 Then, the second left side folding portion Fd is folded inward via the sixth ruled line L6, and the first left side folding portion Fa is further folded into the fifth ruled line L5, the 51st ruled line 51, the 52nd ruled line 52, and the 53rd ruled line. It is folded back inward via the 53, 54th ruled line 54, 55th ruled line 55, and 56th ruled line 56, and fixed to the fourth surface portion 24 and the fifth surface portion 25 by fixing means (not shown, for example, tape).

図６は図３（ａ）に示す断面図の一部であって、包装袋１００の緩衝体１の空気供給孔１１５付近に掛かる内圧について説明するための図であり、図６（ａ）は包装袋１００の緩衝体１に空気Ａを充填するための細長のチューブＳを空気供給孔１１５に差込み、空気Ａを充填し始めた状態、図６（ｂ）は包装袋１００の緩衝体１に空気Ａを充填し終えた状態、図６（ｃ）は包装袋１００の緩衝体１から細長のチューブＳを取り出した状態、をそれぞれ表す図である。 FIG. 6 is a part of the cross-sectional view shown in FIG. 3 (a), and is a diagram for explaining the internal pressure applied to the vicinity of the air supply hole 115 of the buffer 1 of the packaging bag 100, and FIG. 6 (a) is a diagram. A state in which an elongated tube S for filling the buffer 1 of the packaging bag 100 with air A is inserted into the air supply hole 115 and the air A is started to be filled, FIG. 6B shows the buffer 1 of the packaging bag 100. FIG. 6C is a diagram showing a state in which the air A has been filled and a state in which the elongated tube S is taken out from the buffer 1 of the packaging bag 100.

（差込口２５１を介して、）空気供給孔１１５に細長のチューブ（例えばストロー）Ｓを挿入し、図６（ａ）に示すように、梱包者は細長のチューブＳを介して空気Ａを緩衝体１に充填し、図６（ｂ）に示すように、緩衝体１の内部に空気Ａが充填されると、細長のチューブＳに対して緩衝体１の空気供給孔１１５付近の上層フィルム１ｕおよび下層フィルム１ｄを介して内圧Ｐが掛かり、図６（ｃ）に示すように、図６（ｂ）に示す状態から、細長のチューブＳを緩衝体１から抜き取ると、図１に示されたような包装袋１００が出来上がる。図６（ｃ）に示すように、この状態で、細長のチューブＳに対して緩衝体１のフィルムを介して空気供給孔１１５付近の上層フィルム１ｕおよび下層フィルム１ｄに内圧Ｐが掛かる結果、上層フィルム１ｕと下層フィルム１ｄが上下に簡単に開かない状態になり空気供給孔１１５付近が逆止弁として機能することになって、緩衝体１内部から簡単に空気Ａが抜けることがなくなり、緩衝体１が緩衝材として機能することになる。すなわち、包装袋１００に収容された物品３が、図５（ａ）および図５（ｂ）に示すように、空気Ａが充填され膨張した緩衝体１のフィルム層によって略隙間無く包まれ、緩衝体１の中で宙吊り状態となって、収容物品３が包装袋１００の中で上下左右に移動することを抑制し、物品３は包装袋１００の中に安定に保持されることが可能となる。 An elongated tube (eg, a straw) S is inserted into the air supply hole 115 (via the outlet 251), and as shown in FIG. 6 (a), the packer blows air A through the elongated tube S. When the buffer 1 is filled and the inside of the buffer 1 is filled with air A as shown in FIG. 6 (b), the upper film near the air supply hole 115 of the buffer 1 is filled with respect to the elongated tube S. Internal pressure P is applied through 1u and the underlayer film 1d, and as shown in FIG. 6 (c), when the elongated tube S is pulled out from the buffer 1 from the state shown in FIG. 6 (b), it is shown in FIG. A packaging bag 100 like this is completed. As shown in FIG. 6C, in this state, an internal pressure P is applied to the upper film 1u and the lower film 1d near the air supply hole 115 via the film of the cushioning body 1 with respect to the elongated tube S, and as a result, the upper layer The film 1u and the lower film 1d cannot be easily opened up and down, and the vicinity of the air supply hole 115 functions as a check valve, so that the air A does not easily escape from the inside of the cushioning body 1 and the cushioning body 1 will function as a cushioning material. That is, as shown in FIGS. 5 (a) and 5 (b), the article 3 housed in the packaging bag 100 is wrapped with the film layer of the buffer 1 filled with air A and expanded without any gap, and is buffered. The article 3 is suspended in the body 1 to prevent the stored article 3 from moving up, down, left and right in the packaging bag 100, and the article 3 can be stably held in the packaging bag 100. ..

従来、物品を包装袋で梱包する際、物品の運搬中に外部からの衝撃を緩和したり（衝撃緩和性）、物品が包装箱の中で上下左右に移動することを抑制するようにしたり（密閉性）するため、物品と包装袋の内側壁との間に緩衝材を配置することが広く行われているが、当該緩衝材は、包装袋と別体で且つ複数の構成となっている場合が多く、開梱した後に別途廃棄する必要が生じ手間が掛かる場合が考えられることに鑑み、外袋と内袋とが一体となっている包装用袋であって、外袋と内袋との間の空間に空気を充填することで収容物品の緩衝材として機能させることを図ったものが、例えば、特許文献１に開示されている。 Conventionally, when packing an article in a packaging bag, the impact from the outside is cushioned during the transportation of the article (impact cushioning property), and the article is prevented from moving up, down, left and right in the packaging box (impact). It is widely practiced to place a cushioning material between the article and the inner side wall of the packaging bag for airtightness), but the cushioning material is separate from the packaging bag and has a plurality of configurations. In many cases, it may be necessary to dispose of the package separately after unpacking, which may take time and effort. Therefore, the outer bag and the inner bag are integrated into a packaging bag, and the outer bag and the inner bag are used. For example, Patent Document 1 discloses an attempt to function as a cushioning material for a contained article by filling the space between them with air.

本実施形態によれば、上記袋状のフィルムにおいて折り返し部のうち互いに対向する外側面同士を一部を残して接着することで空気供給孔を形成し、当該空気供給孔を介して空気を充填したときに当該空気供給孔周辺が逆止弁として機能するので、充填された空気が簡単に包装袋の内部から逃げなくなる結果、上記衝撃緩和性および密閉性が、低コストおよび少ない手間で実現することが可能となる。 According to the present embodiment, in the bag-shaped film, air supply holes are formed by adhering the outer surfaces of the folded portions facing each other, leaving a part thereof, and air is filled through the air supply holes. When this is done, the area around the air supply hole functions as a check valve, so that the filled air cannot easily escape from the inside of the packaging bag, and as a result, the impact mitigation and airtightness are realized at low cost and with little effort. It becomes possible.

また、特許文献１に記載の包装用袋は、透明であるため中身の収容物品が見えるが、本実施形態によれば、透明な袋状のフィルムである緩衝体１を、不透過性の紙層２で覆うので、収容される物品の秘匿性や機密性を保持することが可能になる。 Further, since the packaging bag described in Patent Document 1 is transparent, the contained articles can be seen. However, according to the present embodiment, the buffer 1 which is a transparent bag-shaped film is made of opaque paper. Since it is covered with the layer 2, it is possible to maintain the confidentiality and confidentiality of the stored article.

さらに、本実施形態に係る包装袋１００の未使用時には、２枚の合成樹脂フィルムで形成された袋状の部分には空気を入れないため、通常の紙包装袋と同様かさばらずに保管することが可能である。 Further, when the packaging bag 100 according to the present embodiment is not used, air is not introduced into the bag-shaped portion formed of the two synthetic resin films, so that the packaging bag 100 should be stored without being bulky like a normal paper packaging bag. Is possible.

また、本実施形態に係る包装袋１００は、重包装袋の公知の製造工程を大きく変更することなく製造可能であり、紙層２と合成樹脂フィルム層（緩衝体１のフィルム層）を全面で接着することなく製造されるため、使用後の包装袋１００を廃棄する際に、容易に紙層２と合成樹脂フィルム層を分離することが出来るため、資源の循環利用上も好ましいことになる。 Further, the packaging bag 100 according to the present embodiment can be manufactured without significantly changing the known manufacturing process of the heavy-duty packaging bag, and the paper layer 2 and the synthetic resin film layer (the film layer of the buffer 1) are covered on the entire surface. Since it is manufactured without adhesion, the paper layer 2 and the synthetic resin film layer can be easily separated when the used packaging bag 100 is discarded, which is preferable in terms of resource recycling.

特許文献１に記載の袋は合成樹脂製袋であるため、空気を充填すると全体が外側に膨らんで、球状に近づくことが避けられず、包装体の保管や輸送の際に取り扱いにくいことが考えられるが、本実施形態では、外層に紙層２を設けることにより、空気を充填した後の包装袋１００の形状は箱状にすることが出来、更に紙層２同士の摩擦によって荷崩れなどを防止することが可能である。 Since the bag described in Patent Document 1 is a synthetic resin bag, it is inevitable that the entire bag swells outward when filled with air and approaches a spherical shape, which makes it difficult to handle when storing or transporting the package. However, in the present embodiment, by providing the paper layer 2 in the outer layer, the shape of the packaging bag 100 after being filled with air can be made into a box shape, and further, the load collapses due to the friction between the paper layers 2 and the like. It is possible to prevent it.

具体的には、表層が坪量５０ｇ／ｍ²以上、１５０ｇ／ｍ²以下の紙層２であることにより、空気を吹き込んだ際の包装袋１００の形状は上下面が平坦に保たれ、効率的に輸送や保管をすることが出来る。該紙層２の坪量は７０ｇ／ｍ²以上であることがより好ましく、クラフト紙であると包装袋１００同士が滑って荷崩れを起こすことを防止できるため更に好ましい。また、包装袋１００として、角底袋や六角底袋の様な貼り袋であると、内容物を充填した包装袋１００が箱状等のより安定した形状となるため更に好ましい。 Specifically, since the surface layer is ^{a paper layer 2 having a basis weight of 50 g / m 2} or more and 150 g / m ² or less, the shape of the packaging bag 100 when air is blown is kept flat on the upper and lower surfaces, which is efficient. Can be transported and stored. The basis weight of the paper layer 2 ^{is more preferably 70 g / m 2} or more, and kraft paper is more preferable because it can prevent the packaging bags 100 from slipping and collapsing. Further, it is more preferable that the packaging bag 100 is a sticking bag such as a square bottom bag or a hexagonal bottom bag because the packaging bag 100 filled with the contents has a more stable shape such as a box shape.

＜第２実施形態＞
本発明の第２実施形態では、第１実施形態と異なり、内部に空気を供給したときに、袋状のフィルムの緩衝体１’が所望の形状に膨張するように、緩衝体１’の互いに対向する内側面同士をシール部によってシールする。本実施形態に係る包装袋１００’を構成する各要素のうち、同様の機能を有するものについては、第１実施形態と同一の符号を付してその説明を省略する。 <Second Embodiment>
In the second embodiment of the present invention, unlike the first embodiment, the buffers 1'of the bag-shaped film expand into a desired shape when air is supplied to the inside of the buffers 1'. The facing inner surfaces are sealed by a sealing portion. Among the elements constituting the packaging bag 100'according to the present embodiment, those having the same function are designated by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

図７は、本実施形態に係る包装袋１００’の展開平面図である。本実施形態では、緩衝体１’において、所定の空間を有する気室を画成するように、緩衝体１’の互いに対向する面を溶着するシール部をさらに備える。シール部は、緩衝体１’において、２以上の気室を画成するように設けられ、各気室ごとに、空気供給孔１１５が設けられる。 FIG. 7 is a developed plan view of the packaging bag 100'according to the present embodiment. In the present embodiment, the buffer 1'is further provided with a sealing portion for welding the facing surfaces of the buffer 1'so as to define an air chamber having a predetermined space. The seal portion is provided in the buffer body 1'so as to define two or more air chambers, and an air supply hole 115 is provided for each air chamber.

本実施形態では、図７に示すように、シール部１５ａ、１５ｂは、緩衝体１’において、３つの気室を画成するように設けられ、各気室ごとに、空気供給孔１１５が設けられる。 In the present embodiment, as shown in FIG. 7, the seal portions 15a and 15b are provided so as to define three air chambers in the buffer body 1', and an air supply hole 115 is provided for each air chamber. Be done.

また、緩衝体１’は、図７に示すように、開口部１１の周縁部を胴部１２の内側に折り返した折り返し部１１２と、折り返し部１１２のうち互いに対向する外側面１１３同士を接着し、緩衝体１’の一方の側縁部１４ａから他方の側縁部１４ｂまで直線状に延びて所定位置で３箇所途切れている線状接着部１１４と、３つの所定位置に形成され、緩衝体１’の内部に空気を供給するための空気供給孔１１５、１１５ａ、１１５ｂとを備える。 Further, as shown in FIG. 7, the shock absorber 1'adheses the folded-back portion 112 in which the peripheral edge portion of the opening 11 is folded back inside the body portion 12 and the outer surfaces 113 of the folded-back portion 112 facing each other. , A linear adhesive portion 114 that extends linearly from one side edge portion 14a of the buffer body 1'to the other side edge portion 14b and is interrupted at three positions at predetermined positions, and a buffer body formed at three predetermined positions. Air supply holes 115, 115a, 115b for supplying air to the inside of 1'are provided.

緩衝体１’の底部１３において、第１実施形態と同様に、第１層（上層）と第２層（下層）とが連続しており、左側縁部１４ａに沿って直線状に延在するように接着部１４１ａによって接着されており、右側縁部１４ｂに沿って直線状に延在するように接着部１４１ｂによって接着されていることによって、緩衝体１’は、袋状になっている。本実施形態では、さらに、シール部１５ａおよび１５ｂが、開口部１１から胴部１２を通って底部１３に亘る第１方向に沿って、それぞれ形成されており、つまり、接着部１４１ａの延在方向と略平行にシール部１５ａが延在しており、接着部１４１ｂの延在方向と略平行にシール部１５ｂが延在していることにより、袋部が３つ出来ている。 At the bottom 13 of the buffer 1', the first layer (upper layer) and the second layer (lower layer) are continuous and extend linearly along the left edge portion 14a, as in the first embodiment. As described above, the buffer body 1'is in the shape of a bag because it is adhered by the adhesive portion 141a and is adhered by the adhesive portion 141b so as to extend linearly along the right edge portion 14b. In the present embodiment, the seal portions 15a and 15b are further formed along the first direction from the opening 11 through the body portion 12 to the bottom portion 13, that is, the extending direction of the adhesive portion 141a. The seal portion 15a extends substantially parallel to the seal portion 15a, and the seal portion 15b extends substantially parallel to the extending direction of the adhesive portion 141b, so that three bag portions are formed.

また、紙層２において、緩衝体１’の空気供給孔１１５、１１５ａ、１１５ｂが形成された位置に、配置されるように、紙層２の端縁から中央に向かって第１切込み線Ｃ１ａおよび第２切込み線Ｃ１ｂ、第３切込み線Ｃ２ａおよび第４切込み線Ｃ２ｂ、並びに第５切込み線Ｃ３ａおよび第６切込み線Ｃ３ｂ、を形成することで、細長の空気供給チューブＳがそれぞれ差し込み可能な３つの空気供給孔１１５、１１５ａ、１１５ｂの位置を示唆する３つ差込口２５１、２５２、２５３が設けられる。 Further, in the paper layer 2, the first cut line C1a and the first cut line C1a from the edge of the paper layer 2 toward the center are arranged so as to be arranged at the positions where the air supply holes 115, 115a, 115b of the buffer body 1'are formed. By forming the second cut line C1b, the third cut line C2a and the fourth cut line C2b, and the fifth cut line C3a and the sixth cut line C3b, three elongated air supply tubes S can be inserted respectively. Three outlets 251, 252, 253 are provided to indicate the positions of the air supply holes 115, 115a, 115b.

本実施形態によれば、第１実施形態と同様の効果を得られるほか、内部に空気を供給したときに、袋状のフィルムの緩衝体１’が所望の形状に膨張するように、緩衝体１’の互いに対向する内側面同士をシール部によってシール可能なので、様々な機能を包装袋１００’に付与することが可能となる。例えば、上記のように、複数の気室が形成されることにより、１つの袋が破けたりしても、緩衝材としての機能を失わずに済ませることが可能となる。 According to the present embodiment, the same effect as that of the first embodiment can be obtained, and the buffer body 1'of the bag-shaped film expands into a desired shape when air is supplied to the inside. Since the inner side surfaces of 1'opposing each other can be sealed by the sealing portion, various functions can be imparted to the packaging bag 100'. For example, as described above, by forming a plurality of air chambers, even if one bag is torn, it is possible to keep the function as a cushioning material.

本実施形態では、シール部は緩衝体１’に直線状に２本設けられているが、本発明ではこれに限られず、シール部は、互いに噛み合った櫛状のパターンで溶着されることによって形成されてもよい。また、本実施形態では、空気供給孔が３つ設けられているが、本発明では、空気供給孔を１つにして、１つの空気供給孔１１５から緩衝体１’の胴部１２の内部に空気を充填するときに、２以上の気室内に空気が行き渡るように、気室を画成しているシール部１５ａおよび１５ｂの一部にシールされない非シール部を設ける態様も許容するものである（以下の第３実施形態を参照）。 In the present embodiment, two seal portions are provided linearly on the shock absorber 1', but the present invention is not limited to this, and the seal portions are formed by welding in a comb-like pattern in which they mesh with each other. May be done. Further, in the present embodiment, three air supply holes are provided, but in the present invention, one air supply hole is provided from one air supply hole 115 to the inside of the body portion 12 of the shock absorber 1'. It is also permissible to provide an unsealed non-sealed portion on a part of the sealed portions 15a and 15b that define the air chamber so that the air is distributed to two or more air chambers when the air is filled. (See the third embodiment below).

＜第３実施形態＞
本発明の第２実施形態では、内部に空気を供給したときに、緩衝体１’に３つの袋部が形成されるように、緩衝体１’の互いに対向する内側面同士をシール部１５ａおよび１５ｂによって２箇所シールして、各袋部に３つの空気供給孔がそれぞれ設けられているが、第３実施形態では、第２実施形態と異なり、内部に空気を供給したときに、緩衝体１’’に筏状の袋部が複数形成されるように、シール部１５ａおよび１５ｂに加えて、シール部１５ａおよび１５ｂの延在方向に直交する方向に沿って緩衝体１’’の互いに対向する内側面同士をシールするシール部１６およびシール部１７ａ〜１７ｆを設けることによって縦横格子状にシールして、当該筏状の袋部に空気供給孔が１つ設けられている（後述の図８を参照）。この構成により、緩衝体１’’に形成された筏状の袋部が有する気室によって、緩衝体１’’内の空気の片寄りを防止することが可能となる（後述の図９を参照）。シール部１５ａ、シール部１５ｂ、シール部１６、およびシール部１７ａ〜１７ｆがいわば膨らみ防止用のシールとして機能している。本実施形態に係る包装袋１００’’を構成する各要素のうち、同様の機能を有するものについては、第１実施形態および第２実施形態と同一の符号を付してその説明を省略する。 <Third Embodiment>
In the second embodiment of the present invention, the inner surfaces of the buffer 1'that face each other are sealed with each other so that three bag portions are formed on the buffer 1'when air is supplied to the inside. Two places are sealed by 15b, and three air supply holes are provided in each bag portion. However, in the third embodiment, unlike the second embodiment, when air is supplied to the inside, the buffer 1 In addition to the sealing portions 15a and 15b, the buffers 1'' face each other along the direction orthogonal to the extending direction of the sealing portions 15a and 15b so that a plurality of bag-shaped bag portions are formed in the''. By providing the sealing portions 16 and the sealing portions 17a to 17f for sealing the inner side surfaces, the bags are sealed in a vertical and horizontal grid pattern, and one air supply hole is provided in the bag-shaped bag portion (FIG. 8 described later). reference). With this configuration, it is possible to prevent the air in the buffer 1 ″ from shifting due to the air chamber of the raft-shaped bag formed in the buffer 1 ″ (see FIG. 9 described later). ). The seal portion 15a, the seal portion 15b, the seal portion 16, and the seal portions 17a to 17f function as so-called swelling prevention seals. Among the elements constituting the packaging bag 100 ″ according to the present embodiment, those having the same function are designated by the same reference numerals as those in the first embodiment and the second embodiment, and the description thereof will be omitted.

図８は、本実施形態に係る包装袋１００’’の展開平面図である。本実施形態では、緩衝体１’’において、所定の空間を有する気室を８個持つ筏状の袋部が３つ形成されるように、シール部１５ａおよび１５ｂに加えて、緩衝体１’’の互いに対向する面を縦横格子状に溶着するシール部１６およびシール部１７ａ〜１７ｆをさらに備える。すなわち、シール部１５ａ、シール部１５ｂ、シール部１６、およびシール部１７ａ〜１７ｆは、緩衝体１’’の胴部１２の内部に空気が充填された状態において気室が筏状を呈するように設けられている。本実施形態では、緩衝体１’’に空気供給孔１１５が１つ設けられ、空気供給孔１１５の配置は、第１実施形態と同様である。 FIG. 8 is a developed plan view of the packaging bag 100 ″ according to the present embodiment. In the present embodiment, in the buffer 1'', in addition to the sealing portions 15a and 15b, the buffer 1'is formed so that three raft-shaped bag portions having eight air chambers having a predetermined space are formed. A seal portion 16 and seal portions 17a to 17f for welding the surfaces facing each other in a vertical and horizontal lattice pattern are further provided. That is, the seal portion 15a, the seal portion 15b, the seal portion 16, and the seal portions 17a to 17f have a raft shape in the air chamber in a state where the inside of the body portion 12 of the buffer body 1 ″ is filled with air. It is provided. In the present embodiment, one air supply hole 115 is provided in the buffer body 1 ″, and the arrangement of the air supply holes 115 is the same as that in the first embodiment.

本実施形態では、図８に示すように、シール部１５ａ、１５ｂは、第２実施形態と同様に、開口部１１から胴部１２を通って底部１３に亘る第１方向に沿って、それぞれ形成されている。また、本実施形態では、図８に示すように、直線状のシール部１６およびシール部１７ａ〜１７ｆの７本のシール部が、当該第１方向に直交する第２方向（本発明では、当該第１方向に交差する方向でもよい）に沿って、それぞれ形成されている。 In the present embodiment, as shown in FIG. 8, the seal portions 15a and 15b are formed along the first direction from the opening 11 through the body portion 12 to the bottom portion 13, respectively, as in the second embodiment. Has been done. Further, in the present embodiment, as shown in FIG. 8, the linear seal portion 16 and the seven seal portions 17a to 17f are in the second direction orthogonal to the first direction (in the present invention, the present invention). Each is formed along a direction that intersects the first direction).

本実施形態では、１つの空気供給孔１１５から緩衝体１’’の内部に空気を供給することで、２４個の気室全部に空気が行き渡るように、気室を囲むシール部の一部に、シールされていない非シール部１８が設けられている（図８中のシール部を示す直線状のハッチングが途切れている部分）。具体的には、図８に示すように、シール部１５ａ、シール部１５ｂ、シール部１６、およびシール部１７ａ〜１７ｆが直線状に延びて所定位置で途切れるように、１つの気室に対して少なくとも１つの非シール部１８が設けられている。すなわち、シール部１５ａ、シール部１５ｂ、シール部１６、およびシール部１７ａ〜１７ｆに設けられた非シール部１８は、１つの吹込み口（空気供給孔１１５）からの空気で膨らむように、気室として完全に区切られない様に設けられたものである。 In the present embodiment, by supplying air from one air supply hole 115 to the inside of the buffer 1 ″, the air is distributed to all 24 air chambers so that the air is distributed to a part of the seal portion surrounding the air chambers. , An unsealed portion 18 is provided (a portion where the linear hatching indicating the sealed portion in FIG. 8 is interrupted). Specifically, as shown in FIG. 8, the seal portion 15a, the seal portion 15b, the seal portion 16, and the seal portions 17a to 17f extend linearly and are interrupted at a predetermined position with respect to one air chamber. At least one unsealed portion 18 is provided. That is, the seal portion 15a, the seal portion 15b, the seal portion 16, and the non-seal portion 18 provided in the seal portions 17a to 17f are inflated by air from one air supply port (air supply hole 115). The room is designed so that it cannot be completely separated.

シール部１６は、折り返し部１１２のうち緩衝体１’’の内部側部分（図６（ａ）〜図６（ｃ）に示す符号１ｕの部分）の内側面と、緩衝体１’’の開口部１１の折り返し部１１２に背向する折り返し背向部のうち緩衝体１’’の内部側部分（図６（ａ）〜図６（ｃ）に示す符号１の引き出し線が接している側の部分）の内側面との対向する２面を溶着して形成されている。一方、シール部１５ａ、１５ｂ、およびシール部１７ａ〜１７ｆは、緩衝体１’’の全部のフィルム層を溶着（例えば挟んでヒートシール加工）して形成されており、折り返し部１１２および折り返し背向部の４層の場合は４層を溶着し、折り返し部１１２および折り返し背向部以外の領域の２層の場合は２層を溶着することで形成されている。 The seal portion 16 is formed on the inner side surface of the inner side portion of the buffer body 1 ″ (the portion of reference numeral 1u shown in FIGS. 6 (a) to 6 (c)) of the folded-back portion 112 and the opening of the buffer body 1 ″. Of the folded back portion facing the folded portion 112 of the portion 11, the inner side portion of the shock absorber 1 ″ (the side in contact with the leader line of reference numeral 1 shown in FIGS. 6 (a) to 6 (c)). It is formed by welding two surfaces facing each other with the inner surface of the portion). On the other hand, the seal portions 15a and 15b and the seal portions 17a to 17f are formed by welding (for example, sandwiching and heat-sealing) all the film layers of the cushioning body 1'', and the folded portion 112 and the folded back direction. In the case of the four layers of the portion, the four layers are welded, and in the case of the two layers in the region other than the folded portion 112 and the folded back portion, the two layers are welded.

また、本実施形態に係る緩衝体１’’は、第１実施形態と同様に、図８に示すように、開口部１１の周縁部を胴部１２の内側に折り返した折り返し部１１２と、折り返し部１１２のうち互いに対向する外側面１１３同士を接着し、緩衝体１の一方の側縁部１４ａから他方の側縁部１４ｂまで直線状に延びて所定位置で途切れている線状接着部１１４と、所定位置に形成され、緩衝体１’’の内部に空気を供給するための空気供給孔１１５とを備える。 Further, as shown in FIG. 8, the shock absorber 1 ″ according to the present embodiment has a folded-back portion 112 in which the peripheral edge portion of the opening 11 is folded back inside the body portion 12, and the folded-back portion 112, as shown in FIG. Of the portions 112, the outer surfaces 113 facing each other are adhered to each other, and the linear adhesive portion 114 extending linearly from one side edge portion 14a of the shock absorber 1 to the other side edge portion 14b and being interrupted at a predetermined position. , It is formed at a predetermined position and includes an air supply hole 115 for supplying air to the inside of the shock absorber 1 ″.

さらに、本実施形態では、第１実施形態と同様に、紙層２において、緩衝体１’’の空気供給孔１１５が形成された位置に、配置されるように、紙層２の端縁から中央に向かって第１切込み線Ｃ１ａおよび第２切込み線Ｃ１ｂを形成することで、細長の空気供給チューブＳがそれぞれ差し込み可能な空気供給孔１１５の位置を示唆する差込口２５１が設けられる。 Further, in the present embodiment, as in the first embodiment, from the edge of the paper layer 2 so as to be arranged at the position where the air supply hole 115 of the buffer 1 ″ is formed in the paper layer 2. By forming the first cut line C1a and the second cut line C1b toward the center, an insertion port 251 suggesting the position of the air supply hole 115 into which the elongated air supply tube S can be inserted is provided.

図９は、本実施形態に係る包装袋１００’’の断面図であって、図１のＶａ−Ｖａ方向断面図である。図９を参照すると、空気供給孔１１５から空気を供給したときに、緩衝体１’’の袋部の気室が１２個存在し、それらの配置構成によって筏状を呈していることが理解される。図８に示す展開した包装袋１００’’では、当該断面に対応する袋部の気室は８個であるが、紙層２に形成された第１罫線Ｌ１〜第４罫線Ｌ４に沿って包装袋１００’’を折り返して、緩衝体１’’に空気を供給したときに、当該第１罫線Ｌ１〜第４罫線Ｌ４がいわば気室を画成する境界として機能することによって４個の気室が８個の気室になっている。 FIG. 9 is a cross-sectional view of the packaging bag 100 ″ according to the present embodiment, and is a cross-sectional view in the Va-Va direction of FIG. With reference to FIG. 9, it is understood that when air is supplied from the air supply hole 115, there are 12 air chambers in the bag portion of the buffer body 1 ″, and they are arranged in a raft shape. NS. In the unfolded packaging bag 100 ″ shown in FIG. 8, the number of air chambers in the bag portion corresponding to the cross section is eight, but the packaging is performed along the first ruled lines L1 to the fourth ruled lines L4 formed on the paper layer 2. When the bag 100'' is folded back and air is supplied to the buffer 1'', the first ruled line L1 to the fourth ruled line L4 function as a boundary defining the air chambers, so that four air chambers are formed. There are 8 air chambers.

本実施形態によれば、空気供給孔１１５から空気を供給したときに、包装袋１００’’に収容された物品３が、図９に示すように、空気Ａが充填され筏状に膨張した緩衝体１’’のフィルム層によって包まれ、緩衝体１の中で宙吊り状態となって、収容物品３が包装袋１００’’の中で上下左右に移動することを抑制し、物品３は包装袋１００’’の中に安定に保持されることが可能となる。 According to the present embodiment, when air is supplied from the air supply hole 115, the article 3 contained in the packaging bag 100 ″ is filled with air A and expanded like a bag as shown in FIG. It is wrapped by the film layer of the body 1'' and suspended in the buffer 1 to prevent the contained article 3 from moving up, down, left and right in the packaging bag 100'', and the article 3 is a packaging bag. It can be stably held in 100''.

さらに、緩衝体１’’に縦横格子状にシール部が形成されているため、各気室に充填される空気量が実質的に決定され、図９に示すように、緩衝体１’’に空気を充填するときに、各気室がある程度一定の厚みを有するエアマット状に膨張するので、第１実施形態および第２実施形態と比較して、緩衝体１’’内の充填空気の片寄りを抑制し、収容物品３を外部衝撃から、より確実に保護することが可能となる。 Further, since the sealing portion is formed on the buffer 1 ″ in a vertical and horizontal lattice pattern, the amount of air filled in each air chamber is substantially determined, and as shown in FIG. 9, the buffer 1 ″ is used. When the air is filled, each air chamber expands like an air mat having a certain thickness, so that the filled air in the buffer 1 ″ is offset as compared with the first embodiment and the second embodiment. It becomes possible to more reliably protect the contained article 3 from an external impact.

１緩衝体
２紙層
３物品
４接着部
１１開口部
１２胴部
１３底部
１４側縁部
１４ａ左側縁部
１４ｂ右側縁部
１５ａ、１５ｂシール部
１００包装袋
１１２折り返し部
１１３外側面
１１４線状接着部
１１５空気供給孔 1 Buffer 2 Paper layer 3 Article 4 Adhesive part 11 Opening 12 Body 13 Bottom 14 Side edge 14a Left edge 14b Right edge 15a, 15b Seal 100 Packaging bag 112 Folded part 113 Outer side surface 114 Linear adhesive part 115 Air supply hole

Claims

A packaging bag made of a bag-shaped film having an opening, a body, a bottom, and a pair of side edges, and provided with a cushioning material that functions as a cushioning material when the inside of the body is filled with air. ,
The buffer is
A folded portion in which the peripheral edge portion of the opening is folded back inside the body portion, and a folded portion.
A linear adhesive portion that adheres the outer surfaces of the folded portions that face each other and extends linearly from one side edge portion of the shock absorber to the other side edge portion and is interrupted at a predetermined position.
A packaging bag formed at the predetermined position and provided with an air supply hole for supplying air to the inside of the body portion of the shock absorber.

The cushioning body is arranged and configured so as to surround the article contained in the packaging bag.
The packaging bag according to claim 1, wherein the packaging bag has one or more layers of paper covering the cushioning body arranged so as to surround the packaging bag.

The packaging bag according to claim 1 or 2, wherein the buffer is made of a synthetic resin film.

The packaging bag according to claim 3, wherein the cushioning body is formed by welding two or more layers of the film in a bag shape.

Any one of claims 1 to 4, wherein the cushioning material serves as a cushioning material for the packaging bag by filling the inside of the body of the cushioning body with air. The packaging bag described in.

The packaging bag according to claim 2, wherein the paper layer is made of kraft paper.

The packaging bag according to claim 6, wherein the kraft paper has a basis weight of 50 g / m ² or more and 150 g / m ^{2 or less.}

The packaging bag according to claim 7, wherein the kraft paper has a basis weight of 70 g / m ^{2 or more.}

The packaging bag according to claim 6, wherein a layer containing synthetic resin fibers is further laminated on the kraft paper.

The second aspect of the present invention is that the packaging bag is any one selected from the group of a light packaging bag such as a square bottom bag, a hexagonal bottom bag, and a heavy packaging bag made of kraft paper or the like. The listed packaging bag.

Any of claims 1 to 10, further comprising a sealing portion for welding the facing surfaces of the shock absorber so as to define an air chamber having a predetermined space in the shock absorber. The packaging bag described in item 1.

The seal portion is provided so as to define two or more air chambers in the buffer body.
The packaging bag according to claim 11, wherein the air supply hole is provided for each air chamber.

The packaging bag according to claim 11 or 12, wherein the sealing portion is formed by welding in a comb-like pattern that meshes with each other.

One of the seal portions defining the air chambers so that air is distributed to two or more air chambers when the inside of the body portion of the shock absorber is filled with air from one of the air supply holes. The packaging bag according to claim 11, wherein a non-sealable portion is provided on the portion.

The packaging bag according to claim 14, wherein the sealing portion is provided so that the air chamber has a raft shape when the inside of the body portion of the shock absorber is filled with air.

The packaging bag according to any one of claims 1 to 15, wherein the folded width of the folded portion is 40 mm or more.

The packaging bag according to claim 16, wherein the folded width of the folded portion is 200 mm or less.