JP2021102464A - Cool box - Google Patents

Cool box Download PDF

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Publication number
JP2021102464A
JP2021102464A JP2019234562A JP2019234562A JP2021102464A JP 2021102464 A JP2021102464 A JP 2021102464A JP 2019234562 A JP2019234562 A JP 2019234562A JP 2019234562 A JP2019234562 A JP 2019234562A JP 2021102464 A JP2021102464 A JP 2021102464A
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Japan
Prior art keywords
box
outer box
overhanging portion
fitting
inner box
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Granted
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JP2019234562A
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Japanese (ja)
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JP7249934B2 (en
Inventor
洋一郎 平安
Yoichiro Hirayasu
洋一郎 平安
光洋 山▲崎▼
Mitsuhiro Yamazaki
光洋 山▲崎▼
佑樹 泊
Yuki Tomari
佑樹 泊
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Globeride Inc
Nissen Chemitec Corp
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Globeride Inc
Nissen Chemitec Corp
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Priority to JP2019234562A priority Critical patent/JP7249934B2/en
Priority to CN202011122943.3A priority patent/CN113023118B/en
Priority to TW109136207A priority patent/TWI740682B/en
Priority to KR1020200182937A priority patent/KR20210082382A/en
Publication of JP2021102464A publication Critical patent/JP2021102464A/en
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Publication of JP7249934B2 publication Critical patent/JP7249934B2/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3823—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed of different materials, e.g. laminated or foam filling between walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
    • B65D81/3818—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container formed with double walls, i.e. hollow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/02—Internal fittings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another

Abstract

To provide a cool box that prevents water from entering a heat insulating material filling space.SOLUTION: A cold box has a box body 2 formed by fitting an outer box 5 and an inner box 6, a heat insulating material arranged in a heat insulating material filling space 7 between the outer box 5 and the inner box 6, a lid 3 that opens and closes the opening of the box body 2, and a water blocking part M formed by fitting a side wall 11 of the outer box 5 and a flange part 33 projecting outward from the tip part of the inner box 6. The side wall 11 of the outer box 5 has an outer box overhanging part 16 that projects outward from the side wall 11. The flange part 33 of the inner box 6 has an inner box overhanging part 52 that projects outward. The outer box overhanging part 16 and the inner box overhanging part 52 are butted outside the water blocking part M.SELECTED DRAWING: Figure 4

Description

本発明は、保冷箱に関するものである。 The present invention relates to a cool box.

保冷箱には、保冷剤とともに釣った魚、飲み物又は食べ物等の収容品を収容できる収容空間が形成されている。この収容空間は、外気と遮断されており、外気により魚等の収容物が温まらないように保持することができる。 The cool box is formed with a storage space that can store stored items such as fish, drinks, and food caught together with the ice pack. This storage space is shielded from the outside air, and can hold the stored items such as fish from being warmed by the outside air.

例えば、特許文献１には、外箱と内箱とが嵌め合わされて構成された箱本体と、外箱と内箱との間に配置された断熱材と、箱本体の開口部を開閉する蓋体と、を有する保冷箱が開示されている。 For example, Patent Document 1 describes a box body formed by fitting an outer box and an inner box, a heat insulating material arranged between the outer box and the inner box, and a lid for opening and closing an opening of the box body. A cool box with a body and is disclosed.

図６は、従来の保冷箱の一例であって、外箱と内箱とが嵌め合わされた嵌合部を示す断面図である。図６に示すように、内箱１０１は、先端側の外周縁に亘って形成されるとともに、下方に向けて開口する嵌合凹溝１０２を有する。嵌合凹溝１０２に、外箱１１０の先端に設けられた嵌合凸部１１１が嵌め合わされて嵌合部が形成されている。また、嵌合凹溝１０２の内面と、嵌合凸部１１１の外面とが接触することで水の浸入を防ぐ止水部１２０が形成されている。内箱１０１と外箱１１０との間には、断熱材（図示省略）が充填される断熱材充填空間１３０が形成されている。 FIG. 6 is an example of a conventional cold storage box, and is a cross-sectional view showing a fitting portion in which the outer box and the inner box are fitted together. As shown in FIG. 6, the inner box 101 has a fitting concave groove 102 that is formed over the outer peripheral edge on the distal end side and opens downward. A fitting convex portion 111 provided at the tip of the outer box 110 is fitted into the fitting concave groove 102 to form a fitting portion. Further, a water blocking portion 120 is formed to prevent water from entering by contacting the inner surface of the fitting concave groove 102 with the outer surface of the fitting convex portion 111. A heat insulating material filling space 130 filled with a heat insulating material (not shown) is formed between the inner box 101 and the outer box 110.

特開２０００−４７５３号公報Japanese Unexamined Patent Publication No. 2000-4753

図６に示す従来の保冷箱は、止水部１２０に水が当たりやすい構造になっているため、強雨の中で使用したり、強い水圧で洗浄したりすると止水部１２０から断熱材充填空間１３０に水が浸入するという問題がある。また、嵌合凸部１１１に水が付着していると、止水部１２０の毛細管現象によって水が吸い上げられ、断熱材充填空間１３０に水が浸入するという問題がある。水は熱を伝達しやすいため、断熱材充填空間１３０に水が浸入すると断熱性能が低下するという問題がある。 Since the conventional cool box shown in FIG. 6 has a structure in which water easily hits the water stop 120, the water stop 120 is filled with a heat insulating material when used in heavy rain or washed with strong water pressure. There is a problem that water enters the space 130. Further, if water adheres to the fitting convex portion 111, there is a problem that the water is sucked up by the capillary phenomenon of the water blocking portion 120 and the water infiltrates into the heat insulating material filling space 130. Since water easily transfers heat, there is a problem that the heat insulating performance deteriorates when water enters the heat insulating material filling space 130.

本発明は、前記課題を解決するためになされたものであり、断熱材充填空間に水が入り難い保冷箱を提供することを目的とする。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a cold storage box in which water does not easily enter the heat insulating material filling space.

前記目的を達成するために本発明の保冷箱は、外箱と内箱とが嵌め合わされて構成された箱本体と、前記外箱と前記内箱との間の断熱材充填空間に配置された断熱材と、前記箱本体の開口部を開閉する蓋体と、前記外箱の側壁と、前記内箱の先端部から外側に張り出すフランジ部とが嵌め合わされて形成された止水部と、を有し、前記外箱の側壁は、当該側壁よりも外側に張り出す外箱張出部を有し、前記内箱の前記フランジ部は、外側に張り出す内箱張出部を有し、前記外箱張出部と前記内箱張出部とは、前記止水部よりも外側で突き合わされていることを特徴とする。 In order to achieve the above object, the cold storage box of the present invention is arranged in a box body formed by fitting an outer box and an inner box and a heat insulating material filling space between the outer box and the inner box. A heat insulating material, a lid that opens and closes an opening of the box body, a water blocking portion formed by fitting a side wall of the outer box and a flange portion that projects outward from the tip of the inner box. The side wall of the outer box has an outer box overhanging portion that projects outward from the side wall, and the flange portion of the inner box has an inner box overhanging portion that projects outward. The outer box overhanging portion and the inner box overhanging portion are abutted with each other on the outside of the water blocking portion.

このようにするとこで、外箱張出部と内箱張出部によって止水部の外側が保護されるため、止水部に直接水が当たるのを防ぐことができる。これにより、保冷箱の断熱材充填空間に水が浸入するのを防ぐことができる。 In this way, since the outside of the water blocking portion is protected by the outer box overhanging portion and the inner box overhanging portion, it is possible to prevent water from directly hitting the water blocking portion. This makes it possible to prevent water from entering the heat insulating material filling space of the cool box.

また、前記外箱張出部に水抜き穴が形成されていることが好ましい。このようにすることで、仮に、突き合わされている部分から外箱張出部に水が浸入しても外箱張出部に貯まった水を保冷箱の外部に排出することができる。 Further, it is preferable that a drain hole is formed in the outer box overhanging portion. By doing so, even if water intrudes into the outer box overhanging portion from the abutted portion, the water accumulated in the outer box overhanging portion can be discharged to the outside of the cold storage box.

また、前記外箱張出部は、前記水抜き穴に向けて下り傾斜となっていることが好ましい。このようにすることで、外箱張出部に貯まった水を効率よく外部に排出することができる。 Further, it is preferable that the outer box overhanging portion is inclined downward toward the drain hole. By doing so, the water accumulated in the outer box overhanging portion can be efficiently discharged to the outside.

また、前記フランジ部の内側リブ及び外側リブとで構成された嵌合凹部と、前記外箱の側壁の先端に設けられた嵌合凸部とが嵌め合わされて嵌合部が形成されるとともに、前記外側リブと前記嵌合凸部とが接触することで前記止水部が形成されており、前記外側リブの先端は、前記外箱張出部と離間していることが好ましい。 Further, the fitting recess formed by the inner rib and the outer rib of the flange portion and the fitting convex portion provided at the tip of the side wall of the outer box are fitted to form the fitting portion, and the fitting portion is formed. It is preferable that the water stop portion is formed by the contact between the outer rib and the fitting convex portion, and the tip of the outer rib is separated from the outer box overhanging portion.

このようにすることで、毛細管現象によって止水部から断熱材充填空間に水が浸入するのを防ぐことができるため、止水性能をより高めることができる。 By doing so, it is possible to prevent water from entering the heat insulating material filling space from the water blocking portion due to the capillary phenomenon, so that the water stopping performance can be further improved.

また、前記外箱張出部の先端面と、前記内箱張出部の先端面とが突き合わされて形成された突合せ面は、水平方向と平行であることが好ましい。このようにすることで、突合せ面から水が入り難くなるため、止水性能をより高めることができる。 Further, it is preferable that the abutting surface formed by abutting the tip surface of the outer box overhanging portion and the tip end surface of the inner box overhanging portion is parallel to the horizontal direction. By doing so, it becomes difficult for water to enter from the butt surface, so that the water stopping performance can be further improved.

本発明によれば、断熱材充填空間に水が入り難い保冷箱が得られる。 According to the present invention, it is possible to obtain a cool box in which water does not easily enter the heat insulating material filling space.

本実施形態に係る保冷箱の全体斜視図である。It is an overall perspective view of the cold storage box which concerns on this embodiment. 幅方向の中央部で破断した保冷箱の斜視図である。It is a perspective view of the cold storage box which broke in the central part in the width direction. 外箱と内箱の分解斜視図である。It is an exploded perspective view of an outer box and an inner box. 水抜き穴周りの断面図である。It is sectional drawing around a drainage hole. 水抜き穴周りの前側の斜視図である。It is a perspective view of the front side around a drain hole. 従来の保冷箱の一例であって、外箱と内箱とが嵌め合わされた嵌合部を示す断面図である。It is an example of the conventional cold storage box, and is the cross-sectional view which shows the fitting part in which the outer box and the inner box are fitted.

以下、本発明の実施形態の保冷箱について、図面を参照して説明する。各実施形態において、同一の部分には同一の符号を付し、重複する説明は省略する。説明における「上下」、「左右」、「前後」は図１の矢印に従う。 Hereinafter, the cool box according to the embodiment of the present invention will be described with reference to the drawings. In each embodiment, the same parts are designated by the same reference numerals, and duplicate description will be omitted. “Up and down”, “left and right”, and “front and back” in the description follow the arrows in FIG.

（保冷箱）
図１及び図２に示すように、本実施形態の保冷箱１は、前後方向よりも左右方向に長く形成された直方体状の箱である。保冷箱１は、箱本体２と、蓋体３と、ロックレバー４，４とで主に構成されている。保冷箱１の内部には、保冷剤とともに釣った魚、飲み物又は食べ物等の収容品を収容できる収容空間Ｓ（図２参照）が形成されている。 (Cool box)
As shown in FIGS. 1 and 2, the cold storage box 1 of the present embodiment is a rectangular parallelepiped box formed longer in the left-right direction than in the front-rear direction. The cold storage box 1 is mainly composed of a box body 2, a lid 3, and lock levers 4 and 4. Inside the cool box 1, a storage space S (see FIG. 2) that can store stored items such as fish, drinks, and food caught together with the ice pack is formed.

図２に示すように、箱本体２は、外箱５と、内箱６と、断熱材（図示省略）を充填する断熱材充填空間７を備えている。断熱材充填空間７は、周方向全体に亘って形成されている。断熱材は、例えば、発泡ウレタン、発泡スチロールなどを用いることができる。保冷箱１は、外箱５、内箱６及び断熱材の三層構造になっており、高い断熱性能を発揮することができる。なお、本実施形態の保冷箱１は、前後及び左右が対称的な構造になっている。 As shown in FIG. 2, the box main body 2 includes an outer box 5, an inner box 6, and a heat insulating material filling space 7 for filling a heat insulating material (not shown). The heat insulating material filling space 7 is formed over the entire circumferential direction. As the heat insulating material, for example, urethane foam, styrofoam, or the like can be used. The cold insulation box 1 has a three-layer structure of an outer box 5, an inner box 6, and a heat insulating material, and can exhibit high heat insulating performance. The cold storage box 1 of the present embodiment has a symmetrical structure in the front-rear direction and the left-right direction.

（外箱）
図３に示すように、外箱５は、底壁１０と、４つの側壁１１とで構成された樹脂製の有底筒状部材である。底壁１０は、左右方向（幅方向とも言う）に長い長方形になっている。側壁１１は、底壁１０の周縁から概ね垂直に立ち上がっている。側壁１１は、側壁１１Ａ，側壁１１Ｂ、側壁１１Ｃ、側壁１１Ｄと称して必要に応じて区別する。側壁１１Ａ，１１Ｂは互いに対向し、左右方向と平行になっている。側壁１１Ｃ，１１Ｄは互いに対向し前後方向に平行になっている。 (Outer case)
As shown in FIG. 3, the outer box 5 is a resin-made bottomed tubular member composed of a bottom wall 10 and four side walls 11. The bottom wall 10 has a rectangular shape that is long in the left-right direction (also referred to as the width direction). The side wall 11 rises substantially vertically from the peripheral edge of the bottom wall 10. The side wall 11 is referred to as a side wall 11A, a side wall 11B, a side wall 11C, and a side wall 11D, and is distinguished as necessary. The side walls 11A and 11B face each other and are parallel to the left-right direction. The side walls 11C and 11D face each other and are parallel to each other in the front-rear direction.

外箱５の先端部のうち、側壁１１Ａ，１１Ｂに対応する部位は、側壁１１Ｃ，１１Ｄに対応する部位に比べて一段下がった位置に形成されている。また、外箱５の先端部のうち、側壁１１Ａ，１１Ｂに対応する部位は、左右方向の中央部に向かって下り傾斜になっている。 Of the tip portions of the outer box 5, the portions corresponding to the side walls 11A and 11B are formed at positions one step lower than the portions corresponding to the side walls 11C and 11D. Further, among the tip portions of the outer box 5, the portions corresponding to the side walls 11A and 11B are inclined downward toward the central portion in the left-right direction.

図４に示すように、外箱５の先端部には、全周に亘って嵌合凸部１５及び外箱張出部１６が形成されている。嵌合凸部１５は、側壁１１の先端に設けられた突条であり、側壁１１の他の部位よりも薄くなっている。外箱張出部１６は、側壁１１から外側（側壁１１に対し収容空間Ｓの反対側）に張り出すとともに上方に向けて延設されている。より詳しくは、外箱張出部１６は、側壁１１Ａから斜め上方に張り出す第１立上り部１６ａと、第１立上り部１６ａの端部から鉛直方向に沿って立ち上がる第２立上り部１６ｂとで構成されている。 As shown in FIG. 4, the tip portion of the outer box 5 is formed with a fitting convex portion 15 and an outer box overhanging portion 16 over the entire circumference. The fitting convex portion 15 is a ridge provided at the tip of the side wall 11, and is thinner than other portions of the side wall 11. The outer box overhanging portion 16 projects outward from the side wall 11 (opposite side of the accommodating space S with respect to the side wall 11) and extends upward. More specifically, the outer box overhanging portion 16 is composed of a first rising portion 16a protruding diagonally upward from the side wall 11A and a second rising portion 16b rising along the vertical direction from the end portion of the first rising portion 16a. Has been done.

図３及び図５に示すように、外箱張出部１６のうち側壁１１Ａ，１１Ｂに対応する部位において、左右方向の中央部には、水抜き穴１７が形成されている。水抜き穴１７は、外箱張出部１６の第１立上り部１６ａの基端側において所定の幅で上下方向に貫通して形成されている。 As shown in FIGS. 3 and 5, a drain hole 17 is formed in the central portion in the left-right direction in the portion of the outer box overhanging portion 16 corresponding to the side walls 11A and 11B. The drain hole 17 is formed so as to penetrate in the vertical direction with a predetermined width on the base end side of the first rising portion 16a of the outer box overhanging portion 16.

図４に示すように、側壁１１には、ボス支持部１８と、ボス孔１９とが形成されている。ボス支持部１８は、側壁１１の内面から内側に張り出してボス孔１９を支持する部位である。ボス孔１９は、ボス支持部１８から立ち上がっており、内部にネジ溝が形成されている。ボス支持部１８及びボス孔１９は、側壁１１の上部において所定の間隔で複数個所に形成されている。 As shown in FIG. 4, a boss support portion 18 and a boss hole 19 are formed on the side wall 11. The boss support portion 18 is a portion that projects inward from the inner surface of the side wall 11 to support the boss hole 19. The boss hole 19 rises from the boss support portion 18 and has a screw groove formed therein. The boss support portion 18 and the boss hole 19 are formed at a plurality of positions at predetermined intervals on the upper portion of the side wall 11.

（内箱）
図３に示すように、内箱６は、底壁３０と、４つの側壁３１とで構成された樹脂製の有底筒状部材である。内箱６は、先端部を除いて外箱５の内部に収容されるため、外箱５よりも一回り小さく形成されている。底壁３０は、左右方向に長い長方形になっている。側壁３１は、底壁３０の周縁から概ね垂直に立ち上がっている。側壁３１は、側壁３１Ａ、側壁３１Ｂ、側壁３１Ｃ、側壁３１Ｄと称して必要に応じて区別する。側壁３１Ａ，３１Ｂは、互いに対向し左右方向と平行になっている。側壁３１Ｃ，３１Ｄは互いに対向し前後方向と平行になっている。 (Inner box)
As shown in FIG. 3, the inner box 6 is a resin-made bottomed tubular member composed of a bottom wall 30 and four side walls 31. Since the inner box 6 is housed inside the outer box 5 except for the tip portion, the inner box 6 is formed to be one size smaller than the outer box 5. The bottom wall 30 has a rectangular shape that is long in the left-right direction. The side wall 31 rises substantially vertically from the peripheral edge of the bottom wall 30. The side wall 31 is referred to as a side wall 31A, a side wall 31B, a side wall 31C, and a side wall 31D, and is distinguished as necessary. The side walls 31A and 31B face each other and are parallel to the left-right direction. The side walls 31C and 31D face each other and are parallel to the front-rear direction.

内箱６の先端部には、折返し壁部３２と、フランジ部３３とが形成されている。折返し壁部３２は、図２に示すように、側壁３１Ａ，３１Ｂの先端から外側に折り返し、側壁３１Ａ，３１Ｂと概ね平行となるように形成されている。 A folded wall portion 32 and a flange portion 33 are formed at the tip end portion of the inner box 6. As shown in FIG. 2, the folded wall portion 32 is formed so as to be folded outward from the tips of the side walls 31A and 31B and substantially parallel to the side walls 31A and 31B.

フランジ部３３は、図２及び図３に示すように、側壁３１Ｃ，３１Ｄ及び折返し壁部３２から外側に張り出す部位であって、第１フランジ部４１、第２フランジ部４２、第３フランジ部４３、第１傾斜フランジ部４４及び第２傾斜フランジ部４５で構成されている。内箱６も前後対称及び左右対称に形成されているため、ここでは前方右側の角部を例示して説明する。 As shown in FIGS. 2 and 3, the flange portion 33 is a portion that projects outward from the side walls 31C and 31D and the folded wall portion 32, and is a first flange portion 41, a second flange portion 42, and a third flange portion. It is composed of 43, a first inclined flange portion 44, and a second inclined flange portion 45. Since the inner box 6 is also formed symmetrically in the front-rear direction and the left-right symmetry, the front right corner portion will be described here as an example.

第１フランジ部４１は、側壁３１Ｄから外側（右側）に向けて張り出している。第１フランジ部４１は、側壁３１Ｄの前後方向全体に亘って形成されている。第２フランジ部４２は、折返し壁部３２の右端側において外側（前側）に向けて張り出している。第２フランジ部４２は、第１フランジ部４１よりも一段下がった位置に形成されている。第２フランジ部４２の上に、ロックレバー４が対向して配置される。 The first flange portion 41 projects outward (right side) from the side wall 31D. The first flange portion 41 is formed over the entire front-rear direction of the side wall 31D. The second flange portion 42 projects outward (front side) on the right end side of the folded wall portion 32. The second flange portion 42 is formed at a position one step lower than the first flange portion 41. The lock lever 4 is arranged on the second flange portion 42 so as to face each other.

第３フランジ部４３は、折返し壁部３２の下端から外側（前側）に向けて張り出している。第３フランジ部４３は、第２傾斜フランジ部４５から中央部に向けて下り傾斜になっている。 The third flange portion 43 projects outward (front side) from the lower end of the folded wall portion 32. The third flange portion 43 is inclined downward from the second inclined flange portion 45 toward the central portion.

第１傾斜フランジ部４４は、折返し壁部３２の右端から外側（前側）に張り出しており、第１フランジ部４１と第２フランジ部４２とを傾斜して連結している。第２傾斜フランジ部４５は、折返し壁部３２から外側（前側）に張り出しており、第２フランジ部４２と第３フランジ部４３とを傾斜して連結している。 The first inclined flange portion 44 projects outward (front side) from the right end of the folded wall portion 32, and connects the first flange portion 41 and the second flange portion 42 in an inclined manner. The second inclined flange portion 45 projects outward (front side) from the folded wall portion 32, and connects the second flange portion 42 and the third flange portion 43 in an inclined manner.

図４に示すように、フランジ部３３の下面には、外箱５の嵌合凸部１５が嵌め合わされる嵌合凹部６０が周方向全体に亘って形成されている。ここでは、第３フランジ部４３を例示して、嵌合部の構造について説明する。第３フランジ部４３は、フランジ本体５１と、内箱張出部５２とで形成されている。フランジ本体５１は、折返し壁部３２の下端から外側（前側）に張り出している。フランジ本体５１の先端側には、下面から下方に延設された内側リブ５３が形成されている。フランジ本体５１のうち、左右方向の中央部にはネジ穴５５が形成されている。ネジ穴５５は、ボス孔１９に連通している。ネジ穴５５からネジＲをボス孔１９に螺合することで、外箱５と内箱６とを強固に締結することができる。 As shown in FIG. 4, on the lower surface of the flange portion 33, a fitting recess 60 into which the fitting convex portion 15 of the outer box 5 is fitted is formed over the entire circumferential direction. Here, the structure of the fitting portion will be described by exemplifying the third flange portion 43. The third flange portion 43 is formed by a flange main body 51 and an inner box overhanging portion 52. The flange body 51 projects outward (front side) from the lower end of the folded wall portion 32. An inner rib 53 extending downward from the lower surface is formed on the tip end side of the flange body 51. A screw hole 55 is formed in the central portion of the flange body 51 in the left-right direction. The screw hole 55 communicates with the boss hole 19. By screwing the screw R from the screw hole 55 into the boss hole 19, the outer box 5 and the inner box 6 can be firmly fastened.

内箱張出部５２は、フランジ本体５１の先端からさらに外側（前側）に張り出している。内箱張出部５２は、左右方向に対向する第２傾斜フランジ部４５，４５間（図３参照）に形成されている。内箱張出部５２は、外側（前側）に向かうにつれて下方に傾斜する傾斜部５２ａと、傾斜部５２ａの先端から垂下する垂下部５２ｂとで構成されている。内箱張出部５２の傾斜部５２ａには、下面から下方に延設された外側リブ５４が形成されている。 The inner box overhanging portion 52 projects further outward (front side) from the tip of the flange main body 51. The inner box overhanging portion 52 is formed between the second inclined flange portions 45 and 45 (see FIG. 3) facing each other in the left-right direction. The inner box overhanging portion 52 is composed of an inclined portion 52a that inclines downward toward the outside (front side) and a hanging portion 52b that hangs down from the tip of the inclined portion 52a. The inclined portion 52a of the inner box overhanging portion 52 is formed with an outer rib 54 extending downward from the lower surface.

内箱張出部５２の先端面５２ｃと、外箱張出部１６の先端面１６ｃとが突き合わされて突合せ面Ｊが形成されている。突合せ面Ｊは、後記する止水部Ｍと同じ高さ位置に形成されている。突合せ面Ｊは、水平方向と平行になっている。突合せ面Ｊは、第３フランジ部４３の左右方向全体に亘って形成されている。突合せ面Ｊは、本実施形態では面接触しているが、わずかに隙間を空けて対向していてもよい。 The tip surface 52c of the inner box overhanging portion 52 and the tip end surface 16c of the outer box overhanging portion 16 are abutted to form a butt surface J. The butt surface J is formed at the same height position as the water blocking portion M described later. The butt surface J is parallel to the horizontal direction. The butt surface J is formed over the entire left-right direction of the third flange portion 43. Although the butt surfaces J are in surface contact with each other in the present embodiment, they may face each other with a slight gap.

第３フランジ部４３と、内側リブ５３と、外側リブ５４とで嵌合凹部６０が形成されている。当該嵌合凹部６０は、フランジ部３３を構成する他のフランジ部にも形成されている。つまり、嵌合凹部６０は、フランジ部３３の周方向全体に亘って形成されている。内箱６の嵌合凹部６０に外箱５の嵌合凸部１５が嵌め合わされることにより、内箱６と外箱５とが一体化する。 A fitting recess 60 is formed by the third flange portion 43, the inner rib 53, and the outer rib 54. The fitting recess 60 is also formed in another flange portion constituting the flange portion 33. That is, the fitting recess 60 is formed over the entire circumferential direction of the flange portion 33. By fitting the fitting convex portion 15 of the outer box 5 into the fitting recess 60 of the inner box 6, the inner box 6 and the outer box 5 are integrated.

また、嵌合凸部１５の外面と、外側リブ５４の内面とが接触（面接触）することにより、止水部Ｍが形成される。止水部Ｍも、当該嵌合部に沿って周方向全体に亘って形成される。嵌合凹部６０と嵌合凸部１５とが嵌め合わされたとき、外側リブ５４の先端（下端）は、外箱張出部１６から離間している。なお、嵌合凸部１５と内側リブ５３とは嵌合代（嵌め合わせの余裕）を確保するために離間しているが、接触するようにしてもよい。 Further, the water stop portion M is formed by the contact (surface contact) between the outer surface of the fitting convex portion 15 and the inner surface of the outer rib 54. The water stop portion M is also formed along the fitting portion over the entire circumferential direction. When the fitting recess 60 and the fitting protrusion 15 are fitted, the tip (lower end) of the outer rib 54 is separated from the outer box overhanging portion 16. Although the fitting convex portion 15 and the inner rib 53 are separated from each other in order to secure a fitting allowance (fitting allowance), they may be brought into contact with each other.

図２に示すように、蓋体３は、箱本体２の開口部を開閉可能に覆う部材である。蓋体３の下面には、折返し壁部３２の先端が嵌合する嵌合溝３ａが周方向全体に亘って形成されている。嵌合溝３ａ及び折返し壁部３２の先端の少なくとも一方にシール部材を設けてシール性を向上させてもよい。 As shown in FIG. 2, the lid 3 is a member that covers the opening of the box body 2 so as to be openable and closable. On the lower surface of the lid 3, a fitting groove 3a into which the tip of the folded wall portion 32 fits is formed over the entire circumferential direction. A sealing member may be provided on at least one of the fitting groove 3a and the tip of the folded wall portion 32 to improve the sealing property.

図２に示すように、ロックレバー４は、蓋体３の下面の前端及び後端にそれぞれ設けられている。ロックレバー４は、箱本体２に対して蓋体３をロック又はロック解除する操作部材である。ロックレバー４の長さは適宜設定すればよいが、本実施形態では左右方向の概ね全体に亘って形成されている。ロックレバー４は、蓋体３の下面にヒンジ部を介して上下方向に回動可能に取り付けられている。 As shown in FIG. 2, lock levers 4 are provided at the front end and the rear end of the lower surface of the lid 3, respectively. The lock lever 4 is an operating member that locks or unlocks the lid 3 with respect to the box body 2. The length of the lock lever 4 may be appropriately set, but in the present embodiment, it is formed over substantially the entire left-right direction. The lock lever 4 is rotatably attached to the lower surface of the lid 3 via a hinge portion in the vertical direction.

ロックレバー４と、折返し壁部３２と、フランジ部３３（第３フランジ部４３、第２傾斜フランジ部４５，４５）との間に指をいれるクリアランスとなる指挿入部７０が形成されている。使用者は、指挿入部７０に指を入れて、ロックレバー４を上方に回動させることで、箱本体２との係合が外れてロック解除となり蓋体３を開けることができる。また、蓋体３を閉じてロックレバー４を下方に回動させることで蓋体３をロックすることができる。蓋体３は、前後方向の片側のみに開放可能としてもよいし、前後方向の両側のロックレバー４を解除して蓋体３の全体を箱本体２から外せるようにしてもよい。 A finger insertion portion 70 is formed as a clearance for inserting a finger between the lock lever 4, the folded wall portion 32, and the flange portion 33 (third flange portion 43, second inclined flange portions 45, 45). By inserting a finger into the finger insertion portion 70 and rotating the lock lever 4 upward, the user can disengage from the box body 2 to unlock and open the lid 3. Further, the lid body 3 can be locked by closing the lid body 3 and rotating the lock lever 4 downward. The lid body 3 may be opened only on one side in the front-rear direction, or the lock levers 4 on both sides in the front-rear direction may be released so that the entire lid body 3 can be removed from the box body 2.

（作用効果）
以上説明した本実施形態の保冷箱１によれば、図４に示すように、外箱張出部１６と内箱張出部５２によって止水部Ｍの外側が保護されるため、止水部Ｍに直接水が当たるのを防ぐことができる。これにより、保冷箱１の断熱材充填空間７に水が浸入するのを防ぐことができる。 (Action effect)
According to the cold storage box 1 of the present embodiment described above, as shown in FIG. 4, the outer box overhanging portion 16 and the inner box overhanging portion 52 protect the outside of the water blocking portion M, so that the water blocking portion M is protected. It is possible to prevent water from directly hitting M. As a result, it is possible to prevent water from entering the heat insulating material filling space 7 of the cold insulation box 1.

また、本実施形態によれば、仮に、突合せ面Ｊから水が浸入し、嵌合凸部１５、外箱張出部１６及び内箱張出部５２で囲まれる空間に水が貯留したとしても、外箱張出部１６の基端側に水抜き穴１７が形成されているため、外箱張出部１６に貯まった水を保冷箱１の外部に排出することができる。 Further, according to the present embodiment, even if water infiltrates from the butt surface J and the water is stored in the space surrounded by the fitting convex portion 15, the outer box overhanging portion 16 and the inner box overhanging portion 52. Since the drain hole 17 is formed on the base end side of the outer box overhanging portion 16, the water stored in the outer box overhanging portion 16 can be discharged to the outside of the cold storage box 1.

また、外箱張出部１６は、水を効率よく排出できるように水抜き穴１７に向けて下り傾斜となっている。つまり、本実施形態では、図４に示すように、外箱張出部１６は側面視して外側から内側に向かうにつれて下方に傾斜している。また、図３に示すように、外箱張出部１６は前側から見て、左右両側から水抜き穴１７が形成された中央部に向けて下り傾斜となっている。これにより、外箱張出部１６の水は、外箱張出部１６の基端側に集約されるとともに、左右方向の両側から中央部にある水抜き穴１７に流れやすくなっている。 Further, the outer box overhanging portion 16 is inclined downward toward the drain hole 17 so that water can be efficiently discharged. That is, in the present embodiment, as shown in FIG. 4, the outer box overhanging portion 16 is inclined downward from the outside to the inside when viewed from the side. Further, as shown in FIG. 3, the outer box overhanging portion 16 is inclined downward from both the left and right sides toward the central portion where the drain holes 17 are formed when viewed from the front side. As a result, the water in the outer box overhanging portion 16 is collected on the base end side of the outer box overhanging portion 16 and easily flows from both sides in the left-right direction to the drain holes 17 in the central portion.

また、止水部Ｍは、例えば、貯留された水と接触していると、毛細管現象によって水を吸い上げてしまい、止水機能が低下するおそれがある。しかし、本実施形態では、外側リブ５４の先端が外箱張出部１６と離間している。このようにすることで、外箱張出部１６に貯留された水が毛細管現象によって止水部Ｍから断熱材充填空間７に浸入するのを防ぐことができるため、止水性能をより高めることができる。 Further, when the water stop portion M is in contact with the stored water, for example, the water may be sucked up by the capillary phenomenon, and the water stop function may be deteriorated. However, in the present embodiment, the tip of the outer rib 54 is separated from the outer box overhanging portion 16. By doing so, it is possible to prevent the water stored in the outer box overhanging portion 16 from entering the heat insulating material filling space 7 from the water blocking portion M due to the capillary phenomenon, so that the water stopping performance can be further improved. Can be done.

また、図４に示すように、本実施形態によれば、外箱張出部１６の先端面１６ｃと、内箱張出部５２の先端面５２ｃとが突き合わされて形成された突合せ面Ｊは、水平方向と平行になっている。このようにすることで、突合せ面Ｊから水が入り難くなるため、止水性能をより高めることができる。 Further, as shown in FIG. 4, according to the present embodiment, the butt surface J formed by abutting the tip surface 16c of the outer box overhanging portion 16 and the tip end surface 52c of the inner box overhanging portion 52 is formed. , Is parallel to the horizontal direction. By doing so, it becomes difficult for water to enter from the butt surface J, so that the water stopping performance can be further improved.

また、外箱張出部１６と内箱張出部５２で構成される突合せ面Ｊは、箱本体２の周方向全体に設けてもよいが、本実施形態のように第３フランジ部４３（ロックレバー４）に対応する部位にのみに設ける形態でもよい。ロックレバー４側（保冷箱１の前後側）は、例えば、魚釣りをする際に海側に対向する場合が多いため海水を受けやすくなっているが、本実施形態によれば、外箱張出部１６及び内箱張出部５２で好適に防ぐことができる。 Further, the butt surface J composed of the outer box overhanging portion 16 and the inner box overhanging portion 52 may be provided in the entire circumferential direction of the box main body 2, but the third flange portion 43 (as in the present embodiment) It may be provided only in the portion corresponding to the lock lever 4). The lock lever 4 side (the front and rear sides of the cold storage box 1) is more susceptible to seawater because it often faces the sea side when fishing, for example. However, according to the present embodiment, the outer box overhangs. This can be suitably prevented by the portion 16 and the inner box overhanging portion 52.

また、内箱張出部５２は、外側に向かうにつれて下方に傾斜しているため、第３フランジ部４３側の水を外側に排出しやすくなっている。 Further, since the inner box overhanging portion 52 is inclined downward toward the outside, the water on the third flange portion 43 side is easily discharged to the outside.

以上本発明の実施形態について説明したが、適宜設計変更が可能である。例えば、本実施形態では、水抜き穴１７を設けたが、水抜き穴１７は省略してもよい。また、本実施形態では、水抜き穴１７を側壁１１Ａ，１１Ｂの合計二箇所に設けたが、個数や配置位置は適宜設定すればよい。つまり、水抜き穴１７を側壁１１Ｃ，１１Ｄに対応する位置に設けてもよい。また、突合せ面Ｊは、先端面１６ｃ，５２ｃが面接触することが好ましいが、一部が接触する形態でもよいし、わずかに離間していてもよい。また、突合せ面Ｊは水平方向と平行であることが好ましいが、他の方向と平行であってもよい。 Although the embodiment of the present invention has been described above, the design can be changed as appropriate. For example, in the present embodiment, the drain hole 17 is provided, but the drain hole 17 may be omitted. Further, in the present embodiment, the drain holes 17 are provided at a total of two locations of the side walls 11A and 11B, but the number and arrangement positions may be appropriately set. That is, the drain hole 17 may be provided at a position corresponding to the side walls 11C and 11D. Further, the butt surfaces J are preferably in surface contact with the tip surfaces 16c and 52c, but may be in a form in which a part of the butt surfaces are in contact with each other or may be slightly separated from each other. Further, the butt surface J is preferably parallel to the horizontal direction, but may be parallel to another direction.

また、本実施形態では、フランジ部３３のうち、第３フランジ部４３，４３に対応する位置に、外箱張出部１６及び内箱張出部５２を設けるとともに両者を突き合わせて突合せ面Ｊを設けたが、フランジ部３３の他の位置に突合せ面Ｊを設ける形態としてもよい。 Further, in the present embodiment, the outer box overhanging portion 16 and the inner box overhanging portion 52 are provided at positions corresponding to the third flange portions 43, 43 of the flange portions 33, and the two are butted against each other to form the butt surface J. Although it is provided, the butt surface J may be provided at another position of the flange portion 33.

また、本実施形態では、外箱５と内箱６とを複数個所でネジＲで締結しているが、ネジＲは省略してもよい。また、本実施形態では、外箱張出部１６を外側に張り出すとともに上方に延設させるとともに、内箱張出部５２を外側に張り出すとともに下方に延設させ、両者を突き合わせているが、両者が突き合わされれば他の形状であってもよい。 Further, in the present embodiment, the outer box 5 and the inner box 6 are fastened with screws R at a plurality of places, but the screws R may be omitted. Further, in the present embodiment, the outer box overhanging portion 16 is extended outward and extended upward, and the inner box overhanging portion 52 is extended outward and extended downward so that the two are butted against each other. , Other shapes may be used as long as they are butted against each other.

１ 保冷箱
２ 箱本体
３ 蓋体
４ ロックレバー
５ 外箱
６ 内箱
７ 断熱材充填空間
１５ 嵌合凸部
１６ 外箱張出部
１７ 水抜き穴
３３ フランジ部
５２ 内箱張出部
５３ 内側リブ
５４ 外側リブ
６０ 嵌合凹部
７０ 指挿入部
Ｊ 突合せ面
Ｍ 止水部 1 Cold storage box 2 Box body 3 Lid body 4 Lock lever 5 Outer box 6 Inner box 7 Insulation material filling space 15 Fitting convex part 16 Outer box overhanging part 17 Drain hole 33 Flange part 52 Inner box overhanging part 53 Inner rib 54 Outer rib 60 Fitting recess 70 Finger insertion part J Butt surface M Water stop part

Claims (5)

外箱と内箱とが嵌め合わされて構成された箱本体と、
前記外箱と前記内箱との間の断熱材充填空間に配置された断熱材と、
前記箱本体の開口部を開閉する蓋体と、
前記外箱の側壁と、前記内箱の先端部から外側に張り出すフランジ部とが嵌め合わされて形成された止水部と、を有し、
前記外箱の側壁は、当該側壁よりも外側に張り出す外箱張出部を有し、
前記内箱の前記フランジ部は、外側に張り出す内箱張出部を有し、
前記外箱張出部と前記内箱張出部とは、前記止水部よりも外側で突き合わされていることを特徴とする保冷箱。 A box body composed of an outer box and an inner box fitted together,
The heat insulating material arranged in the heat insulating material filling space between the outer box and the inner box,
A lid that opens and closes the opening of the box body,
It has a water stop portion formed by fitting a side wall of the outer box and a flange portion protruding outward from the tip end portion of the inner box.
The side wall of the outer box has an outer box overhanging portion that projects outward from the side wall.
The flange portion of the inner box has an inner box overhanging portion that projects outward.
A cold storage box characterized in that the outer box overhanging portion and the inner box overhanging portion are butted on the outside of the water blocking portion. 前記外箱張出部に水抜き穴が形成されていることを特徴とする請求項１に記載の保冷箱。 The cold storage box according to claim 1, wherein a drain hole is formed in the outer box overhanging portion. 前記外箱張出部は、前記水抜き穴に向けて下り傾斜となっていることを特徴とする請求項２に記載の保冷箱。 The cold storage box according to claim 2, wherein the outer box overhanging portion is inclined downward toward the drain hole. 前記フランジ部の内側リブ及び外側リブとで構成された嵌合凹部と、前記外箱の側壁の先端に設けられた嵌合凸部とが嵌め合わされて嵌合部が形成されるとともに、前記外側リブと前記嵌合凸部とが接触することで前記止水部が形成されており、
前記外側リブの先端は、前記外箱張出部と離間していることを特徴とする請求項１から請求項３のいずれか一項に記載の保冷箱。 The fitting recess formed by the inner rib and the outer rib of the flange portion and the fitting convex portion provided at the tip of the side wall of the outer box are fitted to form the fitting portion, and the outer side is formed. The water blocking portion is formed by the contact between the rib and the fitting convex portion.
The cold storage box according to any one of claims 1 to 3, wherein the tip of the outer rib is separated from the outer box overhanging portion. 前記外箱張出部の先端面と、前記内箱張出部の先端面とが突き合わされて形成された突合せ面は、水平方向と平行であることを特徴とする請求項１から請求項４のいずれか一項に記載の保冷箱。 Claims 1 to 4 are characterized in that the abutting surface formed by abutting the tip surface of the outer box overhanging portion and the tip end surface of the inner box overhanging portion is parallel to the horizontal direction. The cold storage box described in any one of the items.
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