JP2016210507A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box configured to be compact in size that facilitates operation of sealing and can reduce the amount of secondary material used in the sealing.SOLUTION: A packaging box comprises: two sets of opposed side walls; a bottom wall to close the bottom of the side walls; a pair of top boards connected to the top end of one set of opposed side walls; and a pair of locking boards connected to the top end of the other set of opposed side walls. The pair of top boards are provided with fitting projection pieces formed to project from both edges connected to the side walls and extending therefrom. The pair of locking boards have fitting holes formed to fit the fitting projection pieces therein. The top of the side walls can be closed by fitting the fitting projection pieces into the fitting holes. The packaging box is formed such that a downward load causes the fitting projection pieces to fit into the fitting holes from the top, making a sealed state in which the top of the side walls are closed, and such that an upward load in the sealed state makes an unsealed state in which the fitting in the fitting holes is released.SELECTED DRAWING: Figure 1

Description

本発明は、被梱包物の搬送や、保管を行う際の梱包資材として使用される梱包箱に関する。   The present invention relates to a packaging box used as a packaging material when carrying and storing an article to be packed.

板材として例えば段ボールを用いた梱包箱は、天面及び底面を封かんする際、副資材として例えば樹脂と接着剤によるテープを用いて貼り付けられるものが一般的である。段ボールはリサイクル性の高い板材であるが、リサイクルのためには副資材であるテープを剥がす必要があることから、作業に手間がかかるという問題がある。   A packaging box using, for example, corrugated cardboard as a plate material is generally affixed using, for example, a tape made of a resin and an adhesive as an auxiliary material when sealing the top and bottom surfaces. Corrugated cardboard is a highly recyclable plate material, but there is a problem that work is troublesome because it is necessary to peel off the tape, which is a secondary material, for recycling.

この問題を解決する１つの方法として、段ボール製の２つの部材をジョイント部材で連結させるものが知られている（例えば、特許文献１参照。）。この場合、副資材としてのテープの使用量を低減することができるが、ジョイント部材を小さくすることが難しいことから、梱包箱のサイズが比較的大きくなってしまい、に用途が限定されるという問題がある。   As one method for solving this problem, one in which two members made of corrugated cardboard are connected by a joint member is known (for example, see Patent Document 1). In this case, the amount of tape used as a secondary material can be reduced, but it is difficult to reduce the joint member, so the size of the packaging box becomes relatively large, and the application is limited to There is.

また、別の方法として、上蓋形成用の板部の先端部同士が互いに重なり、先端部が内側に位置する一方の板部には差し込み片が形成され、先端部が外側に位置する他方の板部には差し込み片を差し込ませるための差し込み孔が形成されているものが知られている（例えば、特許文献２参照。）。この場合、封かんの解除のためには作業アクションが必要で手間がかかるという問題がある。   As another method, the tip portions of the upper lid forming plate portions are overlapped with each other, an insertion piece is formed on one plate portion where the tip portion is located inside, and the other plate is located where the tip portion is located outside. The part is known to have an insertion hole for inserting an insertion piece (see, for example, Patent Document 2). In this case, there is a problem that it takes time and effort to release the seal.

特許第５２４１２９１号公報Japanese Patent No. 5241291 特開２００４−２６８９５６号公報Japanese Patent Application Laid-Open No. 2004-268756

本発明は、上記問題を解決するためになされたものであり、封かんの操作が簡単であると共に、その封かんにおける副資材の使用量を削減でき、かつ、コンパクトなサイズで構成することができる梱包箱を提供することを目的とする。   The present invention has been made in order to solve the above-described problem, and can be easily sealed and can reduce the amount of auxiliary materials used for sealing and can be configured in a compact size. The purpose is to provide a box.

本発明は、板材によって構成された直方体状の梱包箱であって、２組の対向した側壁と、前記側壁の下方を塞ぐ底壁と、一方の対向した前記側壁の上端に連設された一対の蓋板と、他方の対向した前記側壁の上端に連設された一対の係止板とを備え、前記一対の蓋板には、前記側壁に連設されて延びた両側辺から突出した嵌合突片が形成され、前記一対の係止板には、前記嵌合突片を嵌入するための嵌合孔が形成されており、前記嵌合突片を前記嵌合孔に嵌合することで前記側壁の上方を塞ぐことが可能な梱包箱において、前記嵌合突片は、下方への押し込み力により上方から前記嵌合孔に嵌合されて前記側壁の上方を塞いだ封かん状態となり、この封かん状態においては、上方への引き上げ力により前記嵌合孔への嵌合が解除された開封状態となるよう形成されたことを特徴とする梱包箱である。   The present invention is a rectangular parallelepiped packaging box made of a plate material, and is a pair of two side walls opposed to each other, a bottom wall closing the lower side of the side walls, and a pair of upper ends of the opposed side walls. And a pair of locking plates connected to the upper end of the other opposite side wall, and the pair of cover plates are fitted to protrude from both sides extending continuously from the side wall. A mating protrusion is formed, a fitting hole for fitting the fitting protrusion is formed in the pair of locking plates, and the fitting protrusion is fitted into the fitting hole. In the packaging box capable of closing the upper side of the side wall, the fitting protrusion is in a sealed state in which the upper side of the side wall is closed by being fitted into the fitting hole from above by a downward pushing force, In this sealed state, the unsealed shape in which the fitting into the fitting hole is released by the upward pulling force A packing box, characterized in that it is formed so as to be.

このように構成された本発明においては、一対の係止板の上面に一対の蓋板を重合させた状態で一対の蓋板を側壁の上端よりも下方に押し下げることで封かん状態とすることでき、一対の蓋板を側壁の上端よりも上方に引き上げることで開封状態とすることができるため、封かん及びその解除の作業が容易に行えると共に、その封かんにおける副資材の使用量を削減でき、かつ、比較的コンパクトなサイズで構成することができる。   In the present invention configured as described above, a pair of lid plates are superposed on the upper surfaces of the pair of locking plates, and the pair of lid plates are pushed down below the upper end of the side wall to be in a sealed state. The pair of lid plates can be opened by pulling them upward from the upper end of the side wall, so that the sealing and releasing work can be easily performed, and the amount of auxiliary materials used in the sealing can be reduced, and It can be constructed in a relatively compact size.

本発明は、さらに、前記嵌合突片の先端である突出端辺は、前記係止板が連設された前記側壁の上端と平行に形成され、前記嵌合孔は、前記係止板が連設された前記側壁側の端辺が、前記蓋板が連設された前記側壁から離れるにつれて前記係止板が連設された前記側壁から離れるように斜めに形成された構成としてもよい。
このような構成により、封かんや開封に要する操作力を低減することができる。 According to the present invention, the protruding end, which is the tip of the fitting protrusion, is formed in parallel with the upper end of the side wall where the locking plate is continuously provided. It is good also as a structure formed so that the edge by the side of the said provided side wall may be diagonally formed so that it may leave | separate from the said side wall where the said locking plate was provided continuously as it leaves | separates from the said side wall where the said cover plate was provided continuously.
With such a configuration, it is possible to reduce the operating force required for sealing and opening.

本発明は、さらに、前記嵌合孔は、前記嵌合突片の内、前記係止板を介して対向した複数の嵌合突片が嵌合するように連続した孔として前記一対の係止板の夫々に１つずつ形成され、前記係止板が連設された前記側壁側の端辺の中央部には、対向する端辺に向かって膨出した膨出部が形成された構成としてもよい。
このような構成により、嵌合孔の形成作業が簡単であると共に、嵌合孔の変形を抑制することができる。 According to the present invention, the pair of locking holes may further include the fitting holes as continuous holes so that a plurality of fitting protrusions facing each other through the locking plate among the fitting protrusions are fitted. One bulging portion is formed on each of the plates, and a bulging portion that bulges toward the opposite end is formed at the central portion of the end on the side wall side where the locking plate is continuously provided. Also good.
With such a configuration, the fitting hole can be easily formed and deformation of the fitting hole can be suppressed.

本発明は、さらに、前記側壁により形成された上端開口は上面視で長方形形状であり、前記蓋板は前記開口の短辺を形成する対向した前記側壁の上端に連設され、前記係止板は前記開口の長辺を形成する対向した前記側壁の上端に連設された構成としてもよい。
このような構成により、係止板に比べて蓋板の変形が抑制されるため、蓋板に形成された嵌合突片が嵌合孔から簡単に外れてしまうことがなく、より副資材の使用量を減らすことができる。 In the present invention, the upper end opening formed by the side wall has a rectangular shape in a top view, and the cover plate is connected to the upper end of the opposing side wall that forms the short side of the opening, and the locking plate May be configured to be connected to the upper ends of the opposed side walls that form the long side of the opening.
With such a configuration, the deformation of the cover plate is suppressed compared to the locking plate, so that the fitting protrusion formed on the cover plate is not easily detached from the fitting hole, and the auxiliary material is more The amount used can be reduced.

本発明は、さらに、前記封かん状態から前記開封状態になったことを報知する開封報知手段を備える構成としてもよい。
このような構成により、開封状態となったことを報知することができ、本来、開封されるべきではないタイミング、例えば盗難等を目的として搬送中等に開封されたことを使用者に知らせることができる。 The present invention may further include an opening notification unit that notifies that the opening state has been changed from the sealed state.
With such a configuration, it is possible to notify that the opened state has been reached, and it is possible to notify the user that the package has been opened for the purpose of, for example, theft, etc. .

本発明は、さらに、前記開封報知手段は、前記開封報知手段は、前記一対の係止板の前記封かん状態にて内側となる面において、前記嵌合孔から前記係止板が連設された前記側壁に向けて設けられた切り込みである構成としてもよい。
このような構成により、外観にて簡易に開封状態となったことを報知することができ、本来、開封されるべきではないタイミング、例えば盗難等を目的として搬送中等に開封されたことをより確実に使用者に知らせることができる。 In the present invention, the unsealing notification means may be configured such that the unsealing notification means is connected to the engagement plate from the fitting hole on the inner surface of the pair of engagement plates in the sealed state. It is good also as a structure which is the notch provided toward the said side wall.
With such a configuration, it is possible to notify that the opened state is easily made in appearance, and it is more sure that the opened state should not be opened originally, for example, during transportation for the purpose of theft or the like. Can inform the user.

本発明は、また、前記開封報知手段は、前記一対の係止板の前記側壁に連設されて延びた両側辺の先端において夫々設けられた切り欠きと、前記蓋板の前記封かん状態にて内側へ向けて揺動可能且つ前記切り欠きに係合可能に設けられた舌片と、から構成され、前記封かん状態から開封状態になった際に、前記舌片の前記切り欠きへの係合が解除されるように形成された構成としてもよい。
このような構成により、外観にて簡易に開封状態となったことを報知することができ、本来、開封されるべきではないタイミング、例えば盗難等を目的として搬送中等に開封されたことをより確実に使用者に知らせることができる。 According to the present invention, the unsealing notification means includes a notch provided at each of front ends of the pair of locking plates that extend continuously from the side walls, and the sealing state of the lid plate. A tongue piece that is swingable inward and engageable with the notch, and the tongue piece is engaged with the notch when the sealed state is opened. It is good also as a structure formed so that may be cancelled | released.
With such a configuration, it is possible to notify that the opened state is easily made in appearance, and it is more sure that the opened state should not be opened originally, for example, during transportation for the purpose of theft or the like. Can inform the user.

本発明は、さらに、前記一対の係止板は、前記側壁に連設されて延びた両側辺から突出し前記封かん状態において前記底壁と当接した状態となる当接突片が形成された構成としてもよい。
このような構成により、封かん状態にて梱包箱に上方から局部的に荷重がかかっても、当接突片により荷重を受けることができ、誤って開封状態となることを抑制することができる。 According to the present invention, the pair of locking plates further includes a contact protrusion that protrudes from both sides extending continuously from the side wall and is in contact with the bottom wall in the sealed state. It is good.
With such a configuration, even if a load is locally applied to the packaging box from above in the sealed state, the load can be received by the contact protrusion, and it is possible to suppress an erroneous opening.

本発明は、さらに、前記底壁は、一方の対向した前記側壁の下端に連設された一対の底側蓋板と、他方の対向した前記側壁の下端に連設された一対の底側係止板と、を有し、前記一対の底側蓋板には、前記側壁に連設されて延びた両側辺から突出した底側嵌合突片が形成され、前記一対の底側係止板には、前記底側嵌合突片を嵌入するための底側嵌合孔が形成されており、前記底側嵌合突片を前記底側嵌合孔に嵌合することで前記側壁の下方を塞ぐことが可能であり、前記底側嵌合突片は、上方への負荷により下方から前記底側嵌合孔に嵌合されて前記側壁の下方を塞いだ底側封かん状態となり、この底側封かん状態においては、下方への負荷により前記底側嵌合孔への嵌合が解除された底側開封状態となるよう形成された構成としてもよい。
このような構成により、底壁においても、封かん及びその解除の作業が容易に行えると共に、その封かんにおける副資材の使用量を削減でき、かつ、コンパクトなサイズで構成することができる。 According to the present invention, the bottom wall further includes a pair of bottom cover plates connected to the lower ends of the one opposing side walls, and a pair of bottom side members connected to the lower ends of the other opposing side walls. The pair of bottom cover plates are formed with bottom fitting protrusions protruding from both sides extending from the side walls, and the pair of bottom locking plates. Is formed with a bottom-side fitting hole for fitting the bottom-side fitting protrusion, and the bottom-side fitting protrusion is fitted into the bottom-side fitting hole so that the bottom-side fitting hole is below the side wall. The bottom-side fitting projection piece is fitted into the bottom-side fitting hole from below by an upward load, and enters a bottom-side sealed state where the bottom of the side wall is blocked. In the side-sealed state, it may be configured to be in a bottom-side opened state in which the fitting to the bottom-side fitting hole is released by a downward load.
With such a configuration, the sealing and releasing operation can be easily performed on the bottom wall, and the usage amount of the auxiliary material in the sealing can be reduced, and the configuration can be made in a compact size.

本発明は、さらに、前記底壁上に、板状の底板を載置した構成としてもよい。
このような構成により、底壁上にて荷重の増大が発生しても、底板により荷重を受けることができ、誤って底側開封状態となることを抑制することができる。 The present invention may be configured such that a plate-like bottom plate is further placed on the bottom wall.
With such a configuration, even if an increase in the load occurs on the bottom wall, the load can be received by the bottom plate, and it is possible to suppress the bottom side unsealed state.

本発明の梱包箱によれば、封かんの操作が簡単であると共に、その封かんにおける副資材の使用量を削減でき、かつ、コンパクトなサイズで構成することができる。   According to the packaging box of the present invention, the sealing operation is simple, the usage amount of the auxiliary material in the sealing can be reduced, and a compact size can be configured.

本発明の第一実施形態に係る梱包箱の係止板を閉じた状態を示す上方斜視図。The upper perspective view which shows the state which closed the locking plate of the packaging box which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る梱包箱の封かん作業前の状態を示す上方斜視図。The upper perspective view which shows the state before sealing work of the packaging box which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る梱包箱の封かん作業の状態を示す上方斜視図。The upper perspective view which shows the state of the sealing operation | work of the packaging box which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る梱包箱の封かん状態を示す上方斜視図。The upper perspective view which shows the sealing state of the packaging box which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る梱包箱の上方斜視図。The upper perspective view of the packaging box which concerns on 1st embodiment of this invention. 本発明の第一実施形態に係る梱包箱の下方斜視図。The lower perspective view of the packaging box which concerns on 1st embodiment of this invention. 本発明の第二実施形態に係る梱包箱を示す下方斜視図。The lower perspective view which shows the packaging box which concerns on 2nd embodiment of this invention. 本発明の第二実施形態に係る梱包箱の切り込みを示す図７の領域Ｂにおける拡大部分断面図。The expanded fragmentary sectional view in the area | region B of FIG. 7 which shows the cutting of the packaging box which concerns on 2nd embodiment of this invention. 本発明の第三実施形態に係る梱包箱を示す上方斜視図。The upper perspective view which shows the packaging box which concerns on 3rd embodiment of this invention. 本発明の第三実施形態に係る梱包箱の封かん状態にて舌片を切り欠きに係合させた状態を示す上方斜視図。The upper perspective view which shows the state which made the tongue piece engage with the notch in the sealing state of the packaging box which concerns on 3rd embodiment of this invention. 本発明の第三実施形態に係る梱包箱の舌片の切り欠きへの係合を解除した状態を示す上方斜視図。The upper perspective view which shows the state which canceled the engagement to the notch of the tongue piece of the packaging box which concerns on 3rd embodiment of this invention.

以下、図面を参照して本発明の一実施形態による梱包箱について説明する。
まず、図１、５及び６により本発明の第一実施形態に係る梱包箱の構成について説明する。図１は本発明の第一実施形態に係る梱包箱の係止板を閉じた状態を示す上方斜視図であり、図５は発明の第一実施形態に係る梱包箱の上方斜視図であり、図６は本発明の第一実施形態に係る梱包箱の下方斜視図である。
図１、５及び６に示すように、第一実施形態における梱包箱１は、板材である１枚の段ボールを切断したものを組み立てることで直方体状に製造されるものであり、２組の対向した側壁３と、側壁３の下方を塞ぐ底壁４と、側壁３の一方の対向した側壁３ａの上端に連設された一対の蓋板５と、他方の対向した側壁３ｂの上端に連設された一対の係止板７とを備えている。なお、本発明においては、板材は段ボールに限るものではなく、例えば、プラスチックや複合材等の弾性を有するものであればよい。また、ここでいう直方体形状とは、完全な直方体形状の他、略直方体形状、例えば、角が一部切り欠かれた形状等も含むものである。 Hereinafter, a packaging box according to an embodiment of the present invention will be described with reference to the drawings.
First, the structure of the packaging box according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an upper perspective view showing a state in which the locking plate of the packaging box according to the first embodiment of the present invention is closed, and FIG. 5 is an upper perspective view of the packaging box according to the first embodiment of the present invention. FIG. 6 is a lower perspective view of the packaging box according to the first embodiment of the present invention.
As shown in FIGS. 1, 5 and 6, the packaging box 1 in the first embodiment is manufactured in a rectangular parallelepiped shape by assembling a piece of corrugated cardboard which is a plate material. The side wall 3, the bottom wall 4 blocking the lower side of the side wall 3, a pair of lid plates 5 connected to the upper end of one opposing side wall 3 a of the side wall 3, and the upper end of the other opposing side wall 3 b And a pair of locking plates 7. In the present invention, the plate material is not limited to corrugated cardboard, and may be any material having elasticity such as plastic or composite material. Moreover, the rectangular parallelepiped shape here includes not only a perfect rectangular parallelepiped shape but also a substantially rectangular parallelepiped shape, for example, a shape in which corners are partially cut away.

図１及び５に示すように、側壁３により形成された上端開口１８は上面視にて長方形形状となっており、蓋板５は短辺を構成する対向した側壁３ａの上端に連設されており、係止板７は長辺を構成する対向した側壁３ｂの上端に連設されている。また、底壁４上に板状の底板４ａが載置される。   As shown in FIGS. 1 and 5, the upper end opening 18 formed by the side wall 3 has a rectangular shape when viewed from above, and the cover plate 5 is connected to the upper end of the opposite side wall 3 a constituting the short side. The locking plate 7 is connected to the upper end of the opposing side wall 3b constituting the long side. A plate-like bottom plate 4 a is placed on the bottom wall 4.

一対の蓋板５には、側壁３ａから延びた両側辺から突出した嵌合突片９が形成され、一対の係止板７には嵌合突片９を嵌入するための嵌合孔１１が蓋板５を側壁３で囲まれた空間に向けて揺動させた際に、平面視で嵌合突片９が重なる位置に形成されている。蓋板５及び係止板７は、側壁３の上端に設けられた折り目によって、側壁３に対して上下に揺動可能となっている。   The pair of lid plates 5 are formed with fitting projections 9 projecting from both sides extending from the side wall 3a, and the pair of locking plates 7 are provided with fitting holes 11 for fitting the fitting projection pieces 9. When the cover plate 5 is swung toward the space surrounded by the side walls 3, the fitting protrusions 9 are formed at positions where they overlap in a plan view. The lid plate 5 and the locking plate 7 can swing up and down with respect to the side wall 3 by a crease provided at the upper end of the side wall 3.

蓋板５は、側壁３ａと連接した基端側に比べて先端側の幅が狭くなるように形成されており、嵌合突片９は蓋板５の両側側辺における先端側に設けられている。また、嵌合突片９の先端である突出端辺９ａの位置としては、蓋板５の基端側の両端、即ち蓋板５が連設されている側壁３の上端辺の両端よりも内側（中央側）となるように形成されている。また、嵌合突片９の突出端辺９ａは、蓋板５を側壁３の上方の開口を閉じるように折り曲げた状態において、係止板７が連設されている側壁３の上端辺と平行となるように形成されている。なお、ここでいう平行とは完全な平行の他、例えば、製造誤差程度にずれた略平行等の僅かに平行でないものも含むものである。   The lid plate 5 is formed so that the width on the distal end side is narrower than the base end side connected to the side wall 3 a, and the fitting protrusion 9 is provided on the distal end side on both sides of the lid plate 5. Yes. Further, the positions of the projecting end sides 9a which are the tips of the fitting projecting pieces 9 are both ends on the base end side of the cover plate 5, that is, inside the both ends of the upper end side of the side wall 3 to which the cover plate 5 is connected. It is formed to be (center side). Further, the projecting end side 9 a of the fitting projecting piece 9 is parallel to the upper end side of the side wall 3 to which the locking plate 7 is connected in a state where the cover plate 5 is bent so as to close the opening above the side wall 3. It is formed to become. Note that the term “parallel” as used herein includes not only completely parallel but also slightly non-parallel such as substantially parallel shifted by a manufacturing error.

嵌合孔１１は、一対の蓋板５の夫々に形成され係止板７を介して対向した２つの嵌合突片９が嵌合するように、連続した孔として一対の係止板７の夫々に１つずつ形成されている。そのため、嵌合突片９に応じて一対の係止板７に夫々２つずつ形成するのに比べ、嵌合孔１１を切り抜いて形成する手間を減らすことができる。そして、嵌合孔１１は、係止板７が連設されている側壁３側の基端側辺１１ａ、及び、この基端側辺１１ａと対向する先端側辺１１ｂが、蓋板５が連設された側壁３から離れるにつれて係止板７が連設されている側壁３から離れるように斜めに形成されており、嵌合孔１１の形状としては略Ｖ字形状となっている。なお、嵌合孔１１における基端側辺１１ａの中央部には、対向する先端側辺１１ｂに向かって膨出した膨出部１１ｃが形成されており、略Ｖ字形状となっている谷部での変形を抑制している。   The fitting hole 11 is formed as a continuous hole of the pair of locking plates 7 so that two fitting protrusions 9 formed on each of the pair of lid plates 5 and opposed via the locking plate 7 are fitted. One is formed for each. Therefore, it is possible to reduce the trouble of cutting out and forming the fitting holes 11 as compared with the case where two pieces are formed on each of the pair of locking plates 7 according to the fitting protrusions 9. The fitting hole 11 includes a base end side 11a on the side wall 3 side where the locking plate 7 is continuously provided, and a front end side 11b facing the base end side 11a, and the cover plate 5 is connected. As the distance from the provided side wall 3 increases, the locking plate 7 is formed obliquely so as to move away from the side wall 3 where the connection is provided, and the fitting hole 11 is substantially V-shaped. In addition, the bulging part 11c which bulged toward the front end side 11b which opposes is formed in the center part of the base end side 11a in the fitting hole 11, and the trough part which becomes a substantially V shape Suppression of deformation is suppressed.

また、一対の係止板７は側壁３ｂに連設されて延びた両側辺から突出した当接突片７ａが形成される。当接突片７ａは、封かん状態において底壁４と当接した状態となる。   The pair of locking plates 7 is formed with contact protrusions 7a protruding from both sides extending from the side walls 3b. The contact protrusion 7a comes into contact with the bottom wall 4 in the sealed state.

このような構成により、蓋板５と係止板７とが嵌合突片９の嵌合孔１１への嵌合によって係合固定されることで梱包箱１は封かん状態とされると共に、梱包箱１の上方が塞がれる。   With such a configuration, the lid 5 and the locking plate 7 are engaged and fixed by fitting the fitting protrusions 9 into the fitting holes 11, so that the packaging box 1 is in a sealed state. The upper part of the box 1 is closed.

図６に示すように側壁３の下端においても上端の蓋板５及び係止板７と同形状の底側蓋板６及び底側係止板８が設けられている。さらに、詳細は省略するが、底側蓋板６及び底側係止板８は、蓋板５及び係止板７と同様に側壁３に対して上下に揺動可能となっており、嵌合突片９及び嵌合孔１１と同形状の底側嵌合突片１０及び底側嵌合孔１２を有する。このような構成により、底側蓋板６と底側係止板８とが底側嵌合突片１０の底側嵌合孔１２への嵌合によって係合固定されることで梱包箱１は底側封かん状態とされると共に、梱包箱１の下方を塞ぐ底壁４が形成される。なお、図６においては、蓋板５及び係止板７は図示されていない。   As shown in FIG. 6, the bottom lid plate 6 and the bottom latch plate 8 having the same shape as the top lid plate 5 and the latch plate 7 are also provided at the lower end of the side wall 3. Further, although details are omitted, the bottom cover plate 6 and the bottom locking plate 8 can swing up and down with respect to the side wall 3 in the same manner as the cover plate 5 and the locking plate 7 and are fitted. A bottom-side fitting protrusion 10 and a bottom-side fitting hole 12 having the same shape as the protrusion 9 and the fitting hole 11 are provided. With such a configuration, the bottom cover plate 6 and the bottom-side locking plate 8 are engaged and fixed by fitting the bottom-side fitting protrusions 10 into the bottom-side fitting holes 12, whereby the packaging box 1 is A bottom wall 4 is formed which is in a bottom-side sealed state and closes the lower side of the packaging box 1. In FIG. 6, the cover plate 5 and the locking plate 7 are not shown.

次に図２乃至図４により本発明の第一実施形態による梱包箱における封かん作業について説明する。図２は本発明の第一実施形態に係る梱包箱の封かん作業前の状態を示す上方斜視図であり、図３は本発明の第一実施形態に係る梱包箱の封かん作業の状態を示す斜視図であり、図４は本発明の第一実施形態に係る梱包箱の封かん状態を示す斜視図である。   Next, the sealing operation in the packaging box according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 2 is an upper perspective view showing a state before the packaging box sealing operation according to the first embodiment of the present invention, and FIG. 3 is a perspective view showing a state of the packaging box sealing operation according to the first embodiment of the present invention. FIG. 4 is a perspective view showing a sealed state of the packaging box according to the first embodiment of the present invention.

封かん作業を行う作業者は、一対の係止板７の上面に一対の蓋板５を重合させた状態とし、蓋板５の上面を押さえる準備を行う（図２参照）。この図２の状態では、蓋板５と係止板７とは側壁３の上端と略面一となっており、蓋板５に設けられている嵌合突片９は係止板７の嵌合孔１１へは嵌入していない。   An operator who performs the sealing work makes a state in which the pair of cover plates 5 is superposed on the upper surfaces of the pair of locking plates 7 and prepares to hold down the upper surfaces of the cover plates 5 (see FIG. 2). In the state of FIG. 2, the lid plate 5 and the locking plate 7 are substantially flush with the upper end of the side wall 3, and the fitting protrusion 9 provided on the lid plate 5 is fitted to the locking plate 7. The fitting hole 11 is not inserted.

次に、一対の蓋板５を側壁３の上端よりも下方に押し下げ下方へ負荷をかけると、蓋板５が斜め下方に傾斜し、それに伴い係止板７も斜め下方に傾斜する。すると、蓋板５に設けられている嵌合突片９が係止板７に設けられている嵌合孔１１へと嵌入する（図３参照）。このとき、嵌合孔１１における基端側辺１１ａが係止板７の基端となる側壁３からの折曲がり部に対して斜めに形成されているため、嵌合突片９が嵌入して当接する基端側辺１１ａが蓋板５の下方への傾斜に沿うこととなり、嵌合孔１１への嵌合突片９の嵌入がスムーズに行われる。なお、この図３では図２に示した作業者の手は省略している。   Next, when a pair of cover plates 5 are pushed downward from the upper end of the side wall 3 and a load is applied downward, the cover plate 5 is inclined obliquely downward, and accordingly the locking plate 7 is also inclined obliquely downward. Then, the fitting protrusion 9 provided on the cover plate 5 is fitted into the fitting hole 11 provided on the locking plate 7 (see FIG. 3). At this time, since the base end side 11a in the fitting hole 11 is formed obliquely with respect to the bent portion from the side wall 3 serving as the base end of the locking plate 7, the fitting projection piece 9 is inserted. The base end side 11 a that comes into contact is along the downward inclination of the cover plate 5, and the fitting protrusion 9 is smoothly inserted into the fitting hole 11. In FIG. 3, the operator's hand shown in FIG. 2 is omitted.

そして、嵌合突片９が嵌合孔１１に嵌入した後に作業者が梱包箱１から手を離すと、蓋板５と係止板７とは側壁３の上端から下方へと押し下げられた状態から復元力によって上方へと持ち上がり、嵌合突片９がより深く嵌合孔１１へと嵌入して強固な係合が実現できる。この復元力によって蓋板５と係止板７とが持ち上がった状態では、蓋板５と係止板７とは図２と同様に側壁３の上端と略面一となり、一対の蓋板５の先端辺同士は略突き当たる状態となり、側壁３の上方が塞がれ封かん状態となる。そして、この蓋板５の先端辺同士を固定するように封かんシール１３を貼付することにより、梱包箱１の封かん作業が完了する。   Then, when the operator removes his / her hand from the packaging box 1 after the fitting protrusion 9 is inserted into the fitting hole 11, the cover plate 5 and the locking plate 7 are pushed down from the upper end of the side wall 3. Then, it is lifted upward by the restoring force, and the fitting protrusion 9 is inserted deeper into the fitting hole 11 to realize a strong engagement. When the cover plate 5 and the locking plate 7 are lifted by this restoring force, the cover plate 5 and the locking plate 7 are substantially flush with the upper end of the side wall 3 as in FIG. The leading edges are substantially in contact with each other, and the upper side of the side wall 3 is closed and sealed. And the sealing work of the packaging box 1 is completed by sticking the sealing seal | sticker 13 so that the front end sides of this cover plate 5 may be fixed.

なお、側壁３の下方においも同様に作業されることで底壁４が形成され底側封かん状態となるが、この底壁４の形成は梱包箱１への被梱包物の内装作業前に実施され、底板４ａ載置される点が上記した側壁３の上方における封かん作業とは異なる。   The bottom wall 4 is formed in the same way under the side wall 3 to form a bottom-side sealed state. This bottom wall 4 is formed before the interior of the package to be packed in the packaging box 1 is formed. And the point by which the baseplate 4a is mounted differs from the sealing operation above the side wall 3 mentioned above.

開封作業を行う場合の手順としては、上記した封かん作業時とは逆の手順を行う。具体的には、封かんシール１３を剥がし、蓋板５を下方へと押し下げる。すると、図３のように一対の蓋板５の先端辺の間には隙間が生じるため、その隙間に手（指）を挿入して一対の蓋板５を側壁３の上端よりも上方に引き上げ上方へ負荷をかけることで嵌合突片９が嵌合孔１１から引き抜かれる、蓋板５と係止板７との係合が解除されて開封状態となる。底壁４においても同様の作業により底側開封状態となる。   As a procedure for performing the opening operation, a procedure reverse to that for the above-described sealing operation is performed. Specifically, the sealing seal 13 is peeled off and the lid plate 5 is pushed downward. Then, as shown in FIG. 3, there is a gap between the front end sides of the pair of lid plates 5, so a hand (finger) is inserted into the gap and the pair of lid plates 5 is lifted above the upper ends of the side walls 3. When the load is applied upward, the fitting protrusion 9 is pulled out of the fitting hole 11, and the engagement between the cover plate 5 and the locking plate 7 is released and the unsealed state is obtained. The bottom wall 4 is also opened in the bottom side by the same operation.

以上、本発明の一実施形態について説明したが、本発明の主旨の範囲において変更可能であり、例えば、底壁については、接着剤による貼り合わせ構造としてもよい。また、係止板に設けられた嵌合孔の形状としては、先端側辺は基端側辺と平行に対向するように形成しておく必要はなく、係止板が連設されている側壁と平行となる形状としてもよい。さらに、係止板は蓋板における嵌合突片が突出している両側の空間を覆い、且つ、嵌合孔を形成することができる大きさであればよく、嵌合孔が簡単に破損しない程度に、側壁からの突出する長さを短くしてもよい。底係止板の底嵌合孔についても同様である。また、封かんシールの貼付は省略してもよい。さらに、当接突片は、封かん状態において底壁と当接しないように当接突片と底壁との間に間隙を形成してもよく、この間隙は例えば、開封状態とならない程度に蓋板を下方に向けて局所的に上方から押した際に当接突片が底壁に当接する程度の間隙である。また、底係止板においても係止板と同様に当接突片を形成してもよい。   As mentioned above, although one Embodiment of this invention was described, it can change in the range of the main point of this invention, For example, about the bottom wall, it is good also as a bonding structure by an adhesive agent. In addition, the shape of the fitting hole provided in the locking plate does not need to be formed so that the tip side is opposed to the base side in parallel, and the side wall on which the locking plate is provided continuously It is good also as a shape parallel to. Further, the locking plate only needs to be large enough to cover the space on both sides of the cover plate from which the fitting protrusion protrudes and to form the fitting hole, and the fitting hole is not easily damaged. Further, the length protruding from the side wall may be shortened. The same applies to the bottom fitting hole of the bottom locking plate. Moreover, you may abbreviate | omit sticking of a sealing seal. Further, a gap may be formed between the contact protrusion and the bottom wall so that the contact protrusion does not contact the bottom wall in the sealed state. The gap is such that the abutting protrusion comes into contact with the bottom wall when the plate is pressed downward from above. Further, a contact protrusion may be formed on the bottom locking plate as well as the locking plate.

次に、本発明の第二実施形態について、図７及び８にて説明する。図７は本発明の第二実施形態に係る梱包箱を示す上方斜視図であり、図８は本発明の第二実施形態に係る梱包箱の切り込みを示す図７の領域Ｂにおける拡大部分断面図である。なお、図７は封かん状態において係止板が延びる方向から見た断面である。図７及び８に示すように、本実施形態の梱包箱２０においては、一対の係止板７の封かん状態において内側となる面において、嵌合孔１１の蓋板５側の端辺から係止板７が連設された側壁３ｂに向けてスリット状の切り込み１４（開封報知手段）が４つ設けられている。   Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 7 is an upper perspective view showing the packaging box according to the second embodiment of the present invention, and FIG. 8 is an enlarged partial sectional view in the region B of FIG. 7 showing the cut of the packaging box according to the second embodiment of the present invention. It is. FIG. 7 is a cross section seen from the direction in which the locking plate extends in the sealed state. As shown in FIGS. 7 and 8, in the packaging box 20 of the present embodiment, the engagement hole 11 is locked from the end on the lid plate 5 side on the inner surface in the sealed state of the pair of locking plates 7. Four slit-like cuts 14 (opening notification means) are provided toward the side wall 3b on which the plates 7 are continuously provided.

第二実施形態においては、封かん状態から開封状態とするために蓋板５を押し下げた場合、係止板７の切り込み１４には曲げモーメントが加わるため、係止板７に設けられた切り込み１４はその延びる方向と直交する方向に広がることとなる。これにより、封かん状態から開放状態となったことを報知することができる。
なお、本実施形態においては、一対の係止板７の封かん状態において内側となる面において、スリット状の切り込み１４を設けたが、開封を報知可能であれば、本発明はこのような形態に限定されるものではない。例えば、スリット状の切り込みではなく、ミシン目を設けてもよく、その設ける位置についても、一対の係止板の封かん状態において外側となる面に設けてもよく、また、その数も４つに限るものではない。さらに、底係止板においても同様に、スリット状の切り込みや、ミシン目を設けてもよい。 In the second embodiment, when the lid plate 5 is pushed down from the sealed state to the opened state, a bending moment is applied to the notch 14 of the locking plate 7, so the notch 14 provided in the locking plate 7 is It spreads in the direction orthogonal to the extending direction. Thereby, it can alert | report that it became the open state from the sealed state.
In the present embodiment, the slit-shaped cut 14 is provided on the inner surface of the pair of locking plates 7 in the sealed state. However, the present invention is in such a form as long as the opening can be notified. It is not limited. For example, a perforation may be provided instead of a slit-shaped notch, and the position of the perforation may be provided on the outer surface in the sealed state of the pair of locking plates, and the number thereof is four. It is not limited. Further, similarly, the bottom locking plate may be provided with slit-shaped cuts or perforations.

次に、本発明の第三実施形態について、図９、１０及び１１にて説明する。図９は本発明の第三実施形態に係る梱包箱を示す上方斜視図であり、図１０は本発明の第三実施形態に係る梱包箱の封かん状態にて舌片を切り欠きに係合させた状態を示す上方斜視図であり、図１１は本発明の第三実施形態に係る梱包箱の舌片の切り欠きへの係合を解除した状態を示す上方斜視図である。
図９に示すように、本実施形態の梱包箱３０においては、一対の蓋板５は側壁３ａとの境界部を軸として上下に揺動可能に設けられた舌片１５を有し、一対の係止板７は側壁３ｂに連設されて延びた両側辺の先端において夫々設けられた切り欠き１６ａを有する。ここで、舌片１５及び切り欠き１６ａは開封報知手段を構成している。 Next, a third embodiment of the present invention will be described with reference to FIGS. FIG. 9 is an upper perspective view showing the packaging box according to the third embodiment of the present invention, and FIG. 10 is a state where the tongue piece is engaged with the notch in the sealed state of the packaging box according to the third embodiment of the present invention. FIG. 11 is an upper perspective view showing a state in which the engagement of the tongue piece of the packaging box according to the third embodiment of the present invention with the notch is released.
As shown in FIG. 9, in the packaging box 30 of the present embodiment, the pair of cover plates 5 have tongue pieces 15 provided so as to be able to swing up and down around the boundary with the side wall 3a. The locking plate 7 has a notch 16a provided at each end of both sides extending continuously from the side wall 3b. Here, the tongue piece 15 and the notch 16a constitute an opening notification means.

舌片１５は、基端側（側壁３ａ側）に比べて先端側において、側壁３ｂの一方側から他方側へ向かう方向の幅が大きい略Ｔ字状に形成される。切り欠き１６ａは、係止板７の両側辺の先端側及び先端の両側辺側を開放し、両側辺を段差状にするように形成され、封かん状態においては対向する係止板７の切り欠き１６ａ同士が略連続した１つの挿入切り欠き１６を形成する。また、舌片１５は挿入切り欠き１６に挿入可能に形成され、舌片１５の先端側の側壁３ｂの一方側から他方側へ向かう方向における幅は、挿入切り欠き１６の幅よりも大きく形成される。   The tongue piece 15 is formed in a substantially T shape having a larger width in the direction from one side of the side wall 3b to the other side on the distal end side than on the base end side (side wall 3a side). The notches 16a are formed so as to open the front end side and the both side sides of the front end of the locking plate 7 so that both sides are stepped, and in the sealed state, the notch of the opposing locking plate 7 is formed. One insertion notch 16 in which 16a is substantially continuous is formed. The tongue piece 15 is formed to be insertable into the insertion notch 16, and the width in the direction from one side to the other side of the side wall 3 b on the distal end side of the tongue piece 15 is formed larger than the width of the insertion notch 16. The

図１０に示すように、封かん状態において、舌片１５を下方へ揺動させ、挿入切り欠き１６へ挿入すると、舌片１５の先端側の幅が挿入切り欠き１６の幅よりも大きいため、舌片１５は挿入切り欠き１６に係合した状態となる。
一方、図１に示すように、舌片１５が挿入切り欠き１６に係合した状態において、封かん状態から開封状態とすると、蓋板５が下方へと押し込まれるのに伴い、係止板７即ち挿入切り欠き１６の位置も下方へと移動するため、舌片１５の先端よりも挿入切り欠き１６が下方となることで、舌片１５の挿入切り欠き１６への係合が解除される。
なお、本実施形態においては、舌片１５の先端側の幅を挿入切り欠き１６の幅よりも大きくすることで舌片１５を挿入切り欠き１６に係合可能としたが、本発明はこのような形態に限定されるものではなく、封かん状態から開封状態とした際に係合が解除される形態であればよい。例えば、舌片の幅を基端側から先端側に亘って一定としても、舌片は封かん状態において上方向に向けて揺動しようとするため、舌片の基端側から先端側の大きさが係止板の挿入切り欠きにおける厚みよりも大きければ係合可能となる。また、封かん状態において対向する係止板の切り欠き同士が略連続した１つの挿入切り欠きを形成せず、対向する係止板の切り欠き夫々に係合可能な舌片を形成しても良く、その数や配置も封かん状態から開封状態とした際に係合が解除される形態であればよい。 As shown in FIG. 10, when the tongue piece 15 is swung downward and inserted into the insertion notch 16 in the sealed state, the width of the distal end side of the tongue piece 15 is larger than the width of the insertion notch 16. The piece 15 is engaged with the insertion notch 16.
On the other hand, as shown in FIG. 1, when the tongue piece 15 is engaged with the insertion notch 16, when the cover plate 5 is pushed downward, the locking plate 7, Since the position of the insertion notch 16 also moves downward, the insertion notch 16 is positioned below the tip of the tongue piece 15 so that the engagement of the tongue piece 15 with the insertion notch 16 is released.
In the present embodiment, the tongue piece 15 can be engaged with the insertion notch 16 by making the width of the front end side of the tongue piece 15 larger than the width of the insertion notch 16, but the present invention is as described above. The present invention is not limited to this form, and any form may be used as long as the engagement is released when the sealed state is changed to the opened state. For example, even if the width of the tongue piece is constant from the proximal end side to the distal end side, the tongue piece tends to swing upward in the sealed state, so the size of the tongue piece from the proximal end side to the distal end side is large. Is greater than the thickness at the insertion notch of the locking plate, the engagement becomes possible. Further, the notch of the engaging plate facing each other in the sealed state may not form one insertion notch that is substantially continuous, and a tongue piece that can be engaged with each of the notches of the opposing engaging plate may be formed. And the number and arrangement | positioning should just be a form from which engagement is cancelled | released when it changes from a sealed state to an open state.

１ 梱包箱
３ 側壁
３ａ 側壁
３ｂ 側壁
４ 底壁
４ａ 底板
５ 蓋板
６ 底側蓋板
７ 係止板
７ａ 当接突片
８ 底側係止板
９ 嵌合突片
９ａ 突出端辺
１０ 底側嵌合突片
１１ 嵌合孔
１１ａ 基端側辺
１１ｂ 先端側辺
１１ｃ 膨出部
１２ 底側嵌合孔
１３ 封かんシール
１４ 切り込み
１５ 舌片
１６ 挿入切り欠き
１６ａ 切り欠き
１８ 上端開口
２０ 梱包箱
３０ 梱包箱 DESCRIPTION OF SYMBOLS 1 Packing box 3 Side wall 3a Side wall 3b Side wall 4 Bottom wall 4a Bottom plate 5 Cover plate 6 Bottom side cover plate 7 Locking plate 7a Abutting protrusion 8 Bottom side locking plate 9 Fitting protrusion 9a Protruding edge 10 Bottom side fitting Collision piece 11 Fitting hole 11a Base end side 11b Tip side 11c bulging part 12 Bottom fitting hole 13 Sealing seal 14 Notch 15 Tongue piece 16 Insertion notch 16a Notch 18 Upper end opening 20 Packing box 30 Packing box

本発明は、板材によって構成された直方体状の梱包箱であって、２組の対向した側壁と、前記側壁の下方を塞ぐ底壁と、一方の対向した前記側壁の上端に連設された一対の蓋板と、他方の対向した前記側壁の上端に連設された一対の係止板とを備え、前記一対の蓋板には、前記側壁に連設されて延びた両側辺から突出した嵌合突片が形成され、前記一対の係止板には、前記嵌合突片を嵌入するための嵌合孔が形成されており、前記嵌合突片を前記嵌合孔に嵌合することで前記側壁の上方を塞ぐことが可能な梱包箱において、前記嵌合突片は、下方への押し込み力により上方から前記嵌合孔に嵌合されて前記側壁の上方を塞いだ封かん状態となり、この封かん状態においては、上方への引き上げ力により前記嵌合孔への嵌合が解除された開封状態となるよう形成され、前記封かん状態において、前記一対の係止板への下方の負荷により、前記嵌合突片の前記嵌合孔への嵌合が解除された開封状態となるよう形成され、前記嵌合突片は前記蓋板の先端側に設けられ、前記封かん状態においては、前記一対の蓋板の先端辺同士は略突き当たる状態となる梱包箱である。
The present invention is a rectangular parallelepiped packaging box made of a plate material, and is a pair of two side walls opposed to each other, a bottom wall closing the lower side of the side walls, and a pair of upper ends of the opposed side walls. And a pair of locking plates connected to the upper end of the other opposite side wall, and the pair of cover plates are fitted to protrude from both sides extending continuously from the side wall. A mating protrusion is formed, a fitting hole for fitting the fitting protrusion is formed in the pair of locking plates, and the fitting protrusion is fitted into the fitting hole. In the packaging box capable of closing the upper side of the side wall, the fitting protrusion is in a sealed state in which the upper side of the side wall is closed by being fitted into the fitting hole from above by a downward pushing force, In this sealed state, the unsealed shape in which the fitting into the fitting hole is released by the upward pulling force Is formed so as to be, in the above sealing state, the load of the lower part of the said pair of locking plates, fitting into the fitting hole of the fitting protrusion is formed so as to be released has been unsealed, The fitting protrusion is a packaging box that is provided on the distal end side of the lid plate, and in the sealed state, the distal sides of the pair of lid plates are substantially in contact with each other .

Claims (11)

板材によって構成された直方体状の梱包箱であって、
２組の対向した側壁と、
前記側壁の下方を塞ぐ底壁と、
一方の対向した前記側壁の上端に連設された一対の蓋板と、他方の対向した前記側壁の上端に連設された一対の係止板と、を備え、
前記一対の蓋板には、前記側壁に連設されて延びた両側辺から突出した嵌合突片が形成され、前記一対の係止板には、前記嵌合突片を嵌入するための嵌合孔が形成されており、前記嵌合突片を前記嵌合孔に嵌合することで前記側壁の上方を塞ぐことが可能な梱包箱において、
前記嵌合突片は、下方への負荷により上方から前記嵌合孔に嵌合されて前記側壁の上方を塞いだ封かん状態となり、この封かん状態においては、上方への負荷により前記嵌合孔への嵌合が解除された開封状態となるよう形成された梱包箱。 A rectangular parallelepiped packaging box made of plate material,
Two sets of opposing side walls;
A bottom wall blocking the lower side of the side wall;
A pair of lid plates connected to the upper end of the opposite side wall and a pair of locking plates connected to the upper end of the opposite side wall;
The pair of cover plates are formed with protruding protrusions protruding from both sides extending continuously from the side walls, and the pair of locking plates are fitted to fit the engaging protrusions. In the packaging box in which a joint hole is formed and the upper part of the side wall can be closed by fitting the fitting protrusion into the fitting hole,
The fitting projecting piece is fitted into the fitting hole from above by a downward load so as to close the upper side of the side wall, and in this sealed state, to the fitting hole by an upward load. A packaging box formed so as to be in an opened state in which the fitting is released. 前記封かん状態において、前記一対の係止板への下方の負荷により、前記嵌合突片の前記嵌合孔への嵌合が解除された開封状態となるよう形成された請求項１に記載の梱包箱。   The said sealing state WHEREIN: It formed so that it might be in the open state by which the fitting to the said fitting hole of the said fitting protrusion was cancelled | released by the downward load to the said pair of locking plate. Packing box. 前記嵌合突片の先端である突出端辺は、前記係止板が連設された前記側壁の上端と平行に形成され、
前記嵌合孔は、前記係止板が連設された前記側壁側の端辺が、前記蓋板が連設された前記側壁から離れるにつれて前記係止板が連設された前記側壁から離れるように斜めに形成された請求項１又は２に記載の梱包箱。 The protruding end that is the tip of the fitting protrusion is formed in parallel with the upper end of the side wall provided with the locking plate,
The fitting hole is arranged such that an end of the side wall side where the locking plate is continuously provided is separated from the side wall where the locking plate is continuously provided as the end side is separated from the side wall where the lid plate is continuously provided. The packaging box according to claim 1 or 2, which is formed obliquely. 前記嵌合孔は、前記嵌合突片の内、前記係止板を介して対向した複数の嵌合突片が嵌合するように連続した孔として前記一対の係止板の夫々に１つずつ形成され、前記係止板が連設された前記側壁側の端辺の中央部には、対向する端辺に向かって膨出した膨出部が形成された請求項３に記載の梱包箱。   The fitting hole is one hole in each of the pair of locking plates as a continuous hole so that a plurality of fitting protrusions opposed via the locking plate among the fitting protruding pieces are fitted. The packaging box according to claim 3, wherein a bulge portion bulging toward the opposite end side is formed at a central portion of the side edge on the side wall side that is formed one by one and is continuously provided. . 前記側壁により形成された上端開口は上面視で長方形形状であり、前記蓋板は前記上端開口の短辺を形成する対向した前記側壁の上端に連設され、前記係止板は前記上端開口の長辺を形成する対向した前記側壁の上端に連設されたことを特徴とする請求項１乃至４のいずれか１項に記載の梱包箱。   The upper end opening formed by the side wall has a rectangular shape in a top view, the lid plate is connected to the upper end of the opposing side wall that forms the short side of the upper end opening, and the locking plate is formed on the upper end opening. The packaging box according to any one of claims 1 to 4, wherein the packaging box is connected to an upper end of the opposed side walls forming a long side. 前記封かん状態から前記開封状態になったことを報知する開封報知手段を備える請求項１乃至５の何れか１項に記載の梱包箱。   The packaging box according to any one of claims 1 to 5, further comprising an opening notification unit that notifies that the opening state has been changed from the sealed state. 前記開封報知手段は、前記一対の係止板の前記封かん状態にて内側となる面において、前記嵌合孔から前記係止板が連設された前記側壁に向けて設けられた切り込みである請求項６に記載の梱包箱。   The opening notification means is a cut provided on the inner surface of the pair of locking plates in the sealed state toward the side wall where the locking plates are continuously provided from the fitting hole. Item 7. A packaging box according to item 6. 前記開封報知手段は、前記一対の係止板の前記側壁に連設されて延びた両側辺の先端において夫々設けられた切り欠きと、前記蓋板の前記封かん状態にて内側へ向けて揺動可能且つ前記切り欠きに係合可能に設けられた舌片と、から構成され、前記封かん状態から開封状態になった際に、前記舌片の前記切り欠きへの係合が解除されるように形成された請求項６又は７に記載の梱包箱。   The unsealing notification means swings inwardly in the sealed state of the cover plate, and notches respectively provided at the front ends of both sides that are connected to and extend from the side walls of the pair of locking plates. And a tongue piece provided to be engageable with the notch so that the engagement of the tongue piece with the notch is released when the sealed state is changed to the opened state. The packing box according to claim 6 or 7 formed. 前記一対の係止板は、前記側壁に連設されて延びた両側辺から突出し前記封かん状態において前記底壁と当接した状態となる当接突片が形成された請求項１乃至８の何れか１項に記載の梱包箱。   The pair of locking plates are formed with contact protrusions that protrude from both sides extending in a continuous manner with the side wall and are in contact with the bottom wall in the sealed state. Or the packing box according to item 1. 前記底壁は、一方の対向した前記側壁の下端に連設された一対の底側蓋板と、他方の対向した前記側壁の下端に連設された一対の底側係止板と、を有し、
前記一対の底側蓋板には、前記側壁に連設されて延びた両側辺から突出した底側嵌合突片が形成され、前記一対の底側係止板には、前記底側嵌合突片を嵌入するための底側嵌合孔が形成されており、前記底側嵌合突片を前記底側嵌合孔に嵌合することで前記側壁の下方を塞ぐことが可能であり、
前記底側嵌合突片は、上方への負荷により下方から前記底側嵌合孔に嵌合されて前記側壁の下方を塞いだ底側封かん状態となり、この底側封かん状態においては、下方への負荷により前記底側嵌合孔への嵌合が解除された底側開封状態となるよう形成された請求項１乃至９の何れか１項に記載の梱包箱。 The bottom wall has a pair of bottom cover plates that are connected to the lower ends of the one opposing side walls, and a pair of bottom locking plates that are connected to the lower ends of the other opposite side walls. And
The pair of bottom cover plates are formed with bottom fitting protrusions projecting from both sides extending continuously from the side wall, and the pair of bottom locking plates has the bottom fitting. A bottom-side fitting hole for fitting the protruding piece is formed, and it is possible to close the lower side of the side wall by fitting the bottom-side fitting protruding piece into the bottom-side fitting hole.
The bottom-side fitting projection piece is fitted into the bottom-side fitting hole from below by an upward load and enters a bottom-side sealed state where the bottom of the side wall is closed. The packaging box of any one of Claims 1 thru | or 9 formed so that it might be in the bottom opened state by which the fitting to the said bottom side fitting hole was cancelled | released by the load of. 前記底壁上に、板状の底板を載置した請求項１０に記載の梱包箱。   The packaging box according to claim 10, wherein a plate-like bottom plate is placed on the bottom wall.

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