JPH0221379Y2 - - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） この考案は、駅弁、寿司などの食物を収容する
紙容器の蓋体に関するものである。[Detailed description of the invention] (Field of industrial application) This invention relates to a lid of a paper container for storing food such as station lunches and sushi.

（従来の技術） 従来、第５図及び第６図に示すように、方形の
底板３と、この底板３の四周縁に起立する両側板
４同士と両側壁５同士が、上方に向けて末広がり
状に傾斜対向するように形成された紙製容器本体
１の蓋体２は、天板６の四周縁から両側板７と両
側壁８とが鉛直に垂設されている。(Prior Art) Conventionally, as shown in FIGS. 5 and 6, a rectangular bottom plate 3, and both side plates 4 and both side walls 5 that stand up on the four peripheries of this bottom plate 3 are widened upward. The lid body 2 of the paper container main body 1 is formed so as to face each other in a tilted manner, and both side plates 7 and both side walls 8 are vertically disposed vertically from the four peripheral edges of the top plate 6.

したがつて、蓋体２の両側板７と両側壁８の下
縁内面と、容器本体１の両側板４、両側壁５外面
との、間隙ｌが相当に大きくなり、しかも、蓋体
２の両側板７間の対向寸法W₁が、容器本体１の
両側板４上端の外寸法W₂よりも若干大きく、か
つ両側壁８間の対向寸法L₁が容器本体１の両側
壁５上端の外寸法L₂よりも若干大きく形成され
ているから、施蓋時において、蓋体２は単に蓋体
２自体の重量でのみ施蓋状態を保持することにな
る。 Therefore, the gap l between the inner surfaces of the lower edges of the side plates 7 and both side walls 8 of the lid body 2 and the outer surfaces of the side plates 4 and both side walls 5 of the container body 1 becomes considerably large. The opposing dimension W ₁ between the side plates 7 is slightly larger than the outer dimension W ₂ of the upper ends of both side plates 4 of the container body 1, and the opposing dimension L ₁ between the both side walls 8 is slightly larger than the outer dimension W 2 of the upper ends of both side walls 5 of the container body 1. Since it is formed to be slightly larger than the dimension _L2 , when the lid is closed, the lid 2 is kept in the closed state only by the weight of the lid 2 itself.

（考案が解決しようとする課題） しかし、蓋体２も容器本体１と同様、たとえば
漂白クラフト紙、カートン紙などの単一紙に形成
されているから、軽量であり、容器本体１から自
然発生に離脱し易く、容器本体１が不本意に開蓋
されるおそれがある。(Problem to be solved by the invention) However, like the container body 1, the lid body 2 is also made of a single piece of paper, such as bleached kraft paper or carton paper, so it is lightweight and can be naturally generated from the container body 1. The container body 1 may be opened inadvertently.

また、蓋体２が軽量であるため、天板６の下面
と容器本体１の両側板４、両側壁５それぞれの上
端面との面圧がきわめて小さく、シール性に劣
る。したがつて容器本体１内に収容されている食
物の熱が逃げ易く保温効果が小さいなどの欠点が
ある。 Further, since the lid body 2 is lightweight, the surface pressure between the lower surface of the top plate 6 and the upper end surfaces of both side plates 4 and both side walls 5 of the container body 1 is extremely small, resulting in poor sealing performance. Therefore, there are disadvantages such as the heat of the food stored in the container body 1 tends to escape and the heat retention effect is small.

そこで、蓋体２の両側板７同士と両側壁８同士
を、容器本体１の両側板４と両側壁５の傾斜角θ₁
に等しい傾斜角で下方に向けて収斂状に傾斜対向
させることが考えられるけれども、このように構
成した場合、当然蓋体２の両側板７同士の下端対
向寸法が容器本体１の両側板４同士の上端対向寸
法よりも小さくなり、かつ蓋体２の両側壁８同士
の下端対向寸法が容器本体１の両側壁５同士の上
端対向寸法よりも小さくなるため、実際上施蓋す
ることができない問題が生じる。 Therefore, the inclination angle θ 1 of the both side plates 7 and both side walls 8 of the lid body 2 and the both side plates 4 and both side walls 5 of the container body 1 _is
Although it is conceivable to make them face each other in a downward convergent manner at an inclination angle equal to The problem is that it is actually impossible to close the lid because it is smaller than the upper end facing dimension, and the lower end facing dimension of both side walls 8 of the lid body 2 is smaller than the upper end facing dimension of both side walls 5 of the container body 1. occurs.

しかし、たとえ容器本体１の傾斜角θ₁に等しい
傾斜角で収斂状に傾斜させた蓋体２であつても容
器本体１に施蓋できるように、蓋体２の両側板７
間の対向寸法W₁を容器本体１の両側板４上端の
外寸法より大きく、かつ両側壁８間の対向寸法
L₁が容器本体１の両側壁５上端の外寸法L₂より
大きく形成している場合は、上記と同様な欠点、
即ち、容器本体１が不本意に開蓋するおそれがあ
り、またシール性に劣り、保温効効果が小さいと
いう欠点を有するものである。 However, even if the lid 2 is tilted in a convergent manner with an inclination angle equal to the inclination angle θ ₁ of the container body 1, the side plates 7 of the lid 2 can be closed to the container body 1.
The opposing dimension W ₁ between them is larger than the outer dimension of the upper end of both side plates 4 of the container body 1, and the opposing dimension between both side walls 8
If L ₁ is larger than the outer dimension L ₂ of the upper ends of both side walls 5 of the container body 1, the same drawbacks as above,
That is, there is a risk that the container body 1 may be opened inadvertently, and the sealing performance is poor, and the heat retention effect is small.

この考案は上記従来の欠点を改善し、かつ問題
を解決するためになされたもので、施蓋状態が適
確に保持され、シール性を高めて保温効果の向上
が実現される紙製容器の蓋体を提供することを目
的とする。 This idea was made to improve the above-mentioned conventional drawbacks and solve the problems.It is a paper container that maintains the lid properly, improves the sealing performance, and improves the heat retention effect. The purpose is to provide a lid.

（課題を解決するための手段） 方形の底板と、この底板の四周縁に起立する両
側板と両側壁とを有し、これら両側板同士と両側
壁同士が上方に向けて末広がり状に傾斜対向した
容器本体に外嵌されて、その上端開口部を着脱自
在に施蓋する蓋体であつて、天板の四周縁から垂
設される両側板と両側壁とを備え、これら両側板
同士と両側壁同士が上記容器本体の両側板と両側
壁の傾斜角に等しい傾斜角で下方に向けて収斂状
に傾斜対向すると共に、天板の幅寸法を容器本体
の両側板の上端の外寸法と同等又は若干小さく形
成し、かつ天板の長さを容器本体の両側壁の上端
の外寸法と同等又は若干小さく形成し、両側板と
両側壁とのコーナー部のそれぞれに角線の上部を
存置した切欠き部が形成されていることを特徴と
する紙製容器の蓋体。(Means for Solving the Problem) It has a rectangular bottom plate, and both side plates and both side walls that stand up on the four peripheries of this bottom plate, and these both side plates and both side walls are slanted toward each other in an upwardly expanding shape. It is a lid body that is fitted onto the outside of the container body and removably covers the top opening of the container body, and includes both side plates and both side walls hanging from the four peripheries of the top plate, and these side plates are connected to each other. The side walls are convergently inclined downward at an angle of inclination equal to the angle of inclination of the side plates of the container body and the side walls, and the width of the top plate is the outer dimension of the upper end of the side plates of the container body. The length of the top plate is the same as or slightly smaller than the outer dimensions of the upper ends of both side walls of the container body, and the upper part of the square wire is left at each corner of the both side plates and both side walls. A lid for a paper container characterized by having a notch formed therein.

（作用） 本考案は蓋体の両側板と両側壁とで形成される
四箇所のコーナー部に切欠き部を形成しているこ
とから、側板と側壁の下端が切欠き部の合流点を
支点に外方に向け拡開可能である。(Function) In this invention, notches are formed at the four corners formed by both side plates and both side walls of the lid body, so that the lower ends of the side plates and side walls serve as a fulcrum at the confluence of the notches. It can be expanded outwards.

また、本考案蓋体は両側板同士と両側壁同士が
上記容器本体の両側板と両側壁の傾斜角に等しい
傾斜角で下方に向けて収斂状に傾斜対向すると共
に、天板の幅寸法を容器本体の両側板の上端の外
寸法と同等又は若干小さく形成していることか
ら、施蓋時において、蓋体の両側板及び両側壁が
容器本体の両側板及び両側壁に密着する。 In addition, in the lid of the present invention, both side plates and both side walls face each other in a convergent manner downward at an inclination angle equal to the inclination angle of the both side plates and both side walls of the container body, and the width dimension of the top plate is Since the external dimensions are equal to or slightly smaller than the outer dimensions of the upper ends of the side plates of the container body, the side plates and both side walls of the lid come into close contact with the side plates and both side walls of the container body when the lid is closed.

（実施例） 以下、この考案の実施例を図面にしたがつて説
明する。第１図はこの考案に係る蓋体を容器本体
に施蓋した状態を示す斜視図、第２図は第１図に
おける−に沿う断面図、第３図は同−線
に沿う断面図であり、これらの図において第５図
及び第６図と同一部分には同一と符号を付し、そ
の詳しい説明を省略する。(Example) Hereinafter, an example of this invention will be described with reference to the drawings. Fig. 1 is a perspective view showing the state in which the lid according to this invention is applied to the container body, Fig. 2 is a sectional view taken along - in Fig. 1, and Fig. 3 is a sectional view taken along the - line in Fig. 1. , in these figures, the same parts as in FIGS. 5 and 6 are given the same reference numerals, and detailed explanation thereof will be omitted.

図において、蓋体２における天板６の四周縁か
ら垂設された両側板７同士と両側壁８同士は、容
器本体１の両側板４と両側壁５の傾斜角θ₁に等し
い傾斜角θ₂で下方向に向けて収斂状に傾斜対向し
ている。そして、天板６の幅寸法W₁、つまり両
側板７の上端の対向寸法W₁を容器本体１の両側
板４上端の外寸法W₂と同等又は若干小さく形成
し、かつ天板６の長さL₁、すなわち両側壁８の
上端の対向寸法L₁を容器本体１の両側壁５上端
の外寸法L₂と同等又は若干小さく形成している。 In the figure, both side plates 7 and both side walls 8 which are vertically provided from the four peripheral edges of the top plate 6 of the lid body 2 have an inclination angle θ equal to the inclination angle θ 1 of the both side plates 4 and both side walls 5 of the container body ₁ . ₂ and are facing downward in a convergent manner. Then, the width dimension W ₁ of the top plate 6, that is, the opposing dimension W ₁ of the upper ends of both side plates 7 is formed to be equal to or slightly smaller than the outer dimension W ₂ of the upper ends of both side plates 4 of the container body 1, and the length of the top plate 6 is The length L ₁ , that is, the opposing dimension L ₁ of the upper ends of both side walls 8 is equal to or slightly smaller than the outer dimension L ₂ of the upper ends of both side walls 5 of the container body 1 .

なお、W₁＜W₂，L₁＜L₂の関係で形成した場
合、施蓋時において容器本体１の両側板４と両側
壁５は内側へ幾分弾性的に変位する。 In addition, when formed in the relationship of W ₁ <W ₂ and L ₁ <L ₂ , both side plates 4 and both side walls 5 of the container body 1 are somewhat elastically displaced inward when the container body 1 is closed.

一方、蓋体２の両側板７と両側壁８とで形成さ
れる四箇所のコーナー部９のそれぞれに、角線１
０の上部を存置して、角線１０を起点に側板７の
下側と側壁８の下端に連らなつて拡開する切欠き
部１１を形成している。 On the other hand, a square wire 1 is attached to each of the four corners 9 formed by the side plates 7 and both side walls 8 of the lid body 2
0, a notch 11 is formed that extends from the square wire 10 to the lower side of the side plate 7 and the lower end of the side wall 8.

上記構成において、蓋体２の両側板７と両側壁
８とで形成される四箇所のコーナー部９のそれぞ
れに、角線１０を起点に側板７と側壁８の下端に
連らなつて拡開する切欠き部１１を形成している
から、第４図において仮想線X₁，X₂で示すよう
に、側板７と側壁８の下端が切欠き部１１の合流
点Ｐを支点に外方に向けて拡開可能になる。 In the above configuration, each of the four corner portions 9 formed by the side plates 7 and both side walls 8 of the lid body 2 is expanded starting from the square wire 10 and continuing to the lower ends of the side plates 7 and side walls 8. 4, the lower ends of the side plate 7 and the side wall 8 extend outward around the confluence point P of the notch 11 as a fulcrum, as shown by virtual lines X ₁ and X ₂ in FIG. It becomes possible to expand towards

（効果） したがつて、たとえ、蓋体の天板の幅寸法を容
器本体の両側板上端の外寸法と同等又は若干小さ
く形成し、かつ天板の長さを容器本体の両側壁上
端の外寸法と同等又は若干小さく形成していて
も、蓋体を容器本体に第１図ないし第３図のよう
に施蓋でき、この施蓋状態から蓋体を除去して容
器本体を開口することができる。このことから、
上記施蓋状態において蓋体が自然発生的に離脱し
て容器本体が不本意に開蓋されるおそれがない。(Effect) Therefore, even if the width of the top plate of the lid body is formed to be equal to or slightly smaller than the outer dimension of the upper ends of both side walls of the container body, and the length of the top plate is made to be equal to or slightly smaller than the outer dimension of the upper ends of both side walls of the container body, Even if the size is the same or slightly smaller, the lid can be attached to the container body as shown in Figures 1 to 3, and the lid can be removed from this closed state to open the container body. can. From this,
In the closed state, there is no risk that the lid will spontaneously come off and the container body will be opened inadvertently.

また、施蓋時において、蓋体の両側板が容器本
体の両側板に密着させると共に、両側壁が両側壁
に密着し、これによつて、天板の下面と容器本体
の両側板の両側壁それぞれの上端面との面圧が大
きく確保され、しかも、容器本体内暖気の流出及
び外気の侵入通路が上記の密着によつて閉成され
るため、シール性が向上し容器本体内に収容され
ている食物の温度降下を抑制することができる。 In addition, when the lid is closed, both side plates of the lid are brought into close contact with both side plates of the container body, and both side walls are brought into close contact with both side walls. A large surface pressure is ensured with each upper end surface, and the outflow of warm air inside the container body and the intrusion passage of outside air are closed by the above-mentioned close contact, so the sealing performance is improved and the air is contained within the container body. It is possible to suppress the temperature drop of food that is

以上説明したように、この考案によれば施蓋状
態が適確に保持され、シール性が高められて保温
効果の向上が実現される。 As explained above, according to this invention, the closed state is properly maintained, the sealing performance is improved, and the heat retention effect is improved.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案に係る蓋体を容器本体に施蓋
した状態を示す斜視図、第２図は第１図における
−線に沿う断面図、第３図は同−線に沿
う断面図、第４図は蓋体の側板と側壁との拡開状
態を示す一部拡大斜視図、第５図は第２図に相当
する従来例の断面図、第６図は第３図に相当する
従来例の断面図である。 １……容器本体、２……蓋体、３……底板、４
……両側板、５……両側壁、６……天板、７……
両側板、８……両側壁、９……コーナー部、１０
……角線、１１……切欠き部。 Fig. 1 is a perspective view showing the state in which the lid according to this invention is applied to the container body, Fig. 2 is a cross-sectional view taken along the - line in Fig. 1, and Fig. 3 is a cross-sectional view taken along the - line in Fig. 1. Fig. 4 is a partially enlarged perspective view showing the expanded state of the side plate and side wall of the lid, Fig. 5 is a sectional view of a conventional example corresponding to Fig. 2, and Fig. 6 is a conventional example corresponding to Fig. 3. FIG. 3 is an example cross-sectional view. 1... Container body, 2... Lid, 3... Bottom plate, 4
...Both sides boards, 5...Both sides walls, 6...Top plate, 7...
Both side plates, 8... Both side walls, 9... Corner part, 10
... Square wire, 11 ... Notch part.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 方形の底板と、この底板の四周縁に起立する両
側板と両側壁とを有し、これら両側板同士と両側
壁同士が上方に向けて末広がり状に傾斜対向した
容器本体に外嵌されて、その上端開口部を着脱自
在に施蓋する蓋体であつて、天板の四周縁から垂
設される両側板と両側壁とを備え、これら両側板
同士と両側壁同士が上記容器本体の両側板と両側
壁の傾斜角に等しい傾斜角で下方に向けて収斂状
に傾斜対向すると共に、天板の幅寸法を容器本体
の両側板上端の外寸法と同等又は若干小さく形成
し、かつ天板の長さを容器本体の両側壁の上端の
外寸法と同等又は若干小さく形成し、両側板と両
側壁とのコーナー部のそれぞれに角線の上部を存
置した切欠き部が形成されていることを特徴とす
る紙製容器の蓋体。 It has a rectangular bottom plate, and both side plates and both side walls standing up on the four peripheries of the bottom plate, and these both side plates and both side walls are fitted onto the outside of the container main body, which are slanted and opposed to each other in an upwardly expanding shape, It is a lid body that removably covers the upper end opening, and includes both side plates and both side walls hanging from the four peripheral edges of the top plate, and these side plates and both side walls are connected to both sides of the container body. The top plate is arranged to face each other in a downwardly convergent manner with an inclination angle equal to the inclination angle of the both side walls, and the width of the top plate is formed to be equal to or slightly smaller than the outer dimension of the upper ends of the both side plates of the container main body, and the top plate The length is equal to or slightly smaller than the external dimension of the upper ends of both side walls of the container body, and a notch with the upper part of the square wire left is formed at each corner of the both side plates and both side walls. A paper container lid featuring: