JP5576149B2

JP5576149B2 - Ventilation hood and method for manufacturing ventilation hood

Info

Publication number: JP5576149B2
Application number: JP2010048488A
Authority: JP
Inventors: 哲夫佐藤
Original assignee: Misawa Homes Co Ltd
Current assignee: Misawa Homes Co Ltd
Priority date: 2010-03-05
Filing date: 2010-03-05
Publication date: 2014-08-20
Anticipated expiration: 2030-03-05
Also published as: JP2011185462A

Description

本発明は、建物の外壁に取り付ける換気フードおよび換気フードの製造方法に関する。 The present invention relates to a ventilation hood attached to an outer wall of a building and a method for manufacturing the ventilation hood.

戸建て住宅やマンション等の共同住宅、ホテル等の宿泊施設では、居室、浴室、洗面室等の換気を行うため、外壁に換気フードを取り付けることがある。
このような換気フードの一例として特許文献１に記載のものが知られている。この換気フードは、住宅等の外壁に臨んで開口する換気ダクトの屋外開口端に屋外側から嵌め装着される板金製のベースと、このベースに係脱可能に装着される板金製のカバーを主体に構成されている。
カバーは、方形の箱形状のもので、金属製の板材を折り曲げ形成し、接合部を溶接して作られている。 In residential facilities such as detached houses and condominiums and hotels, etc., ventilation hoods may be attached to the outer walls to ventilate living rooms, bathrooms, and washrooms.
The thing of patent document 1 is known as an example of such a ventilation hood. This ventilation hood mainly consists of a sheet metal base that is fitted and attached from the outdoor side to the outdoor opening end of a ventilation duct that faces the outer wall of a house, etc., and a sheet metal cover that is detachably attached to this base. It is configured.
The cover has a rectangular box shape, and is formed by bending a metal plate and welding the joint.

特開２００９−１３９０５９号公報JP 2009-139059 A

ところで、金属製の板材を折り曲げ形成して接合部を溶接する場合、例えば塩ビ鋼板等、金属製の板材の表面に樹脂がコーティングされていると、溶接が困難になる。かかる場合、接合すべき一方の板材の端部に、内側に直角に折り曲げてなる接合用耳部を形成するとともに、他方の板材の端部を接合用耳部に当接して、リベットで固定することが考えられる。
しかしこの場合、他方の板材の端部の小口が切断面として露出してしまうので、板材どうしの接合部の仕上がりに不満がある。 By the way, when a metal plate is bent and the joint is welded, welding becomes difficult if the surface of the metal plate is coated with a resin, such as a PVC steel plate. In such a case, a joining ear portion formed by bending inwardly at a right angle is formed at the end portion of one plate member to be joined, and the other plate member end portion is brought into contact with the joining ear portion and fixed with a rivet. It is possible.
However, in this case, the fore end of the other plate material is exposed as a cut surface, which is unsatisfactory in the finish of the joint portion between the plate materials.

本発明は上記事情に鑑みてなされたもので、金属製の板材を折り曲げ加工することによって換気フードを形成する場合に、板材どうしの接合部を秀麗に仕上ることができる換気フードおよび換気フードの製造方法を提供することを課題としている。 The present invention has been made in view of the above circumstances, and in the case of forming a ventilation hood by bending a metal plate material, manufacture of a ventilation hood and a ventilation hood capable of excellently finishing the joints between the plate materials The challenge is to provide a method.

上記課題を解決するために、請求項１に記載の発明は、例えば図１〜図８に示すように、金属製の板材１を折り曲げ加工することによって四角形の箱型に形成される換気フードであって、
前記板材１が、矩形板状に形成されて前記箱型の底部を構成する底板部２と、この底板部２の四辺部にそれぞれ形成されて、当該底板部２と直角に折り曲げられることによって、前記箱型の側壁を構成する四つの側板部３ａ，３ａ，３ｂ，３ｂと、各側板部の両端部にそれぞれ形成された接合用耳部４ａ，４ｂとを備え、
前記四つの側板部３ａ，３ａ，３ｂ，３ｂが前記底板部２と直角に同方向に折り曲げられており、
隣り合う前記側板部３ａ，３ｂにそれぞれ形成されて、互いに接合される接合用耳部４ａ，４ｂのうち、一方の接合用耳部４ａはそれが形成された側板部３ａに対して内側に直角に折り曲げられ、他方の接合用耳部４ｂはそれが形成された側板部３ｂの内面に当接するように折り曲げられており、
折り曲げられた前記一方の接合用耳部４ａに、折り曲げられた前記他方の接合用耳部４ｂが当接されて接合されており、
前記四つの側板部３ａ，３ａ，３ｂ，３ｂのうち、一つの側板部３ａには通気口７が形成されており、
前記一つの側板部３ａの内側には、通気口１６ｂが形成された隔壁板１６が前記一つの側板部３ａと離間対向して設けられ、
前記一つの側板部３ａと前記隔壁板１６との間には、火災時に発泡して前記通気口７を塞ぐ防火発泡材１８が設けられており、
前記一つの側板部３ａの外側には、多数のスリット１５ａが形成された通気用ガラリ１５が前記一つの側板部３ａの前記通気口７を覆うようにして設けられており、
前記通気用ガラリ１５は、前記底板部２と面一となる突部を有することを特徴とする。 In order to solve the above problems, the invention described in claim 1 is a ventilation hood formed into a rectangular box shape by bending a metal plate 1 as shown in FIGS. There,
The plate member 1 is formed in a rectangular plate shape and forms a bottom plate portion 2 constituting the bottom of the box shape, and is formed on each of the four sides of the bottom plate portion 2 and is bent at a right angle to the bottom plate portion 2. Four side plate portions 3a, 3a, 3b, 3b constituting the box-shaped side wall, and joining ear portions 4a, 4b respectively formed at both ends of each side plate portion,
The four side plate portions 3a, 3a, 3b, 3b are bent in the same direction at right angles to the bottom plate portion 2,
Of the joining ears 4a and 4b formed on the adjacent side plate parts 3a and 3b and joined together, one joining ear part 4a is perpendicular to the side plate part 3a on which it is formed. The other bonding ear 4b is bent so as to contact the inner surface of the side plate 3b on which it is formed,
The bent one of the joining ears 4b is in contact with and joined to the one of the joined joining ears 4a ,
Among the four side plate portions 3a, 3a, 3b, 3b, a vent hole 7 is formed in one side plate portion 3a,
On the inner side of the one side plate portion 3a, a partition plate 16 having a vent hole 16b is provided to be spaced apart from the one side plate portion 3a.
Between the one side plate portion 3a and the partition plate 16, there is provided a fireproof foam material 18 that foams during a fire and closes the vent hole 7,
On the outside of the one side plate portion 3a, a ventilation gallery 15 having a plurality of slits 15a is provided so as to cover the vent hole 7 of the one side plate portion 3a.
The ventilation louver 15 has a protrusion that is flush with the bottom plate 2 .

請求項１に記載の発明によれば、四つの側板部３ａ，３ａ，３ｂ，３ｂが底板部２と直角に同方向に折り曲げられることによって形成される箱型において、隣り合う側板部３ａ，３ｂのうちの一方の側板部３ａの端部に折り曲げ形成された一方の接合用耳部４ａに、他方の側板部３ｂの端部に折り曲げ形成された他方の接合用耳部４ｂが当接されて接合されているので、箱型の側板部３ａ，３ｂどうしの接合部には、接合用耳部４ａ，４ｂの折り曲げられた部分が現れ、側板部３ａ，３ｂの端部の切断面は内側に隠れる。したがって、板材１の接合部、つまり側板部３ａ，３ｂどうしの接合部を秀麗に仕上ることができる。
また、通気口７が形成された一つの側板部３ａと、通気口１６ｂが形成された隔壁板１６との間に防火発泡材１８が設けられているので、火災時には防火発泡材１８が発泡して通気口７を塞ぎ、火災の延焼を防止できる。また、防火発泡材１８が側板部３ａと隔壁板１６との間に設けられているので、防火発泡材１８が発泡した際に、当該防火発泡材１８が側板部３ａと隔壁板１６とによって規制されて外側に逃げることがなく、通気口７を確実に塞ぐことができる。また、防火構造が隔壁板１６と防火発泡材１８による簡単な構成であるので、コスト的に優れたものとなる。 According to the invention described in claim 1, in the box shape formed by bending the four side plate portions 3a, 3a, 3b, 3b in the same direction at right angles to the bottom plate portion 2, the adjacent side plate portions 3a, The other joining ear 4b that is bent at the end of the other side plate 3b is brought into contact with one joining ear 4a that is formed at the end of one side plate 3a of 3b. Therefore, the bent portions of the joining ear portions 4a and 4b appear at the joint portion between the box-shaped side plate portions 3a and 3b, and the cut surfaces of the end portions of the side plate portions 3a and 3b are inside. To hide. Therefore, the junction part of the board | plate material 1, ie, the junction part of side board part 3a, 3b, can be finished finely.
Further, since the fireproof foam material 18 is provided between the one side plate portion 3a in which the vent hole 7 is formed and the partition plate 16 in which the vent hole 16b is formed, the fireproof foam material 18 is foamed in the event of a fire. Thus, the vent 7 can be closed to prevent the fire from spreading. Moreover, since the fireproof foam 18 is provided between the side plate portion 3 a and the partition plate 16, the fireproof foam 18 is restricted by the side plate portion 3 a and the partition plate 16 when the fireproof foam 18 is foamed. Thus, the vent hole 7 can be reliably closed without escaping outside. Moreover, since the fireproof structure is a simple structure with the partition plate 16 and the fireproof foam material 18, the cost is excellent.

請求項２に記載の発明は、請求項１に記載の換気フードにおいて、
前記両方の接合用耳部４ａ，４ｂは、これらの間にコーキング材１０を挟んで当接されたうえで、リベット１１が、前記他方の接合用耳部４ｂが形成された側板部３ｂの表面から、前記他方の接合用耳部４ｂを通して、前記一方の接合用耳部４ａに打ち込まれることによって、接合されていることを特徴とする。 The invention according to claim 2 is the ventilation hood according to claim 1,
Both the joining ear portions 4a and 4b are in contact with each other with the caulking material 10 interposed therebetween, and the rivet 11 is a surface of the side plate portion 3b on which the other joining ear portion 4b is formed. From the other joining ear part 4b, it is joined by being driven into the one joining ear part 4a.

請求項２に記載の発明によれば、接合用耳部４ａ，４ｂどうしがコーキング材１０によって水密に接合されるとともに、リベット１１によって固定されるので、側板部３ａ，３ｂどうしの接合部分の防水性を確保しつつ、側板部３ａ，３ｂどうしを確実に接合できる。 According to the second aspect of the present invention, the joining ears 4a and 4b are joined together in a watertight manner by the caulking material 10 and fixed by the rivets 11, so that the joints between the side plate parts 3a and 3b are waterproofed. It is possible to reliably join the side plate portions 3a and 3b while securing the property.

請求項３に記載の発明は、矩形板状に形成された底板部２と、この底板部２の四辺部にそれぞれ折り曲げ可能に形成されるとともに四つのうちの一つに通気口７が形成された四つの側板部３ａ，３ａ，３ｂ，３ｂと、各側板部の両端部にそれぞれ折り曲げ可能に形成された接合用耳部４ａ，４ｂとを有する板材１と、
通気口１６ｂ（多数のスリット１６ａ）が形成された隔壁板１６と、
多数のスリット１５ａが形成され、前記底板部２と面一となる突部を有する通気用ガラリ１５と、
火災時に発泡して前記一つの側板部３ａの前記通気口７を塞ぐための防火発泡材１８と、を用意しておき、
まず、前記底板部２の一方の平行な二辺部にそれぞれ形成された二つの側板部３ａ，３ａの両端部に形成された接合用耳部４ａ，４ａを当該側板部３ａに対して直角に折り曲げるとともに、前記底板部２の他方の平行な二辺部にそれぞれ形成された二つの側板部３ｂ，３ｂの両端部に形成された接合用耳部４ｂ，４ｂを当該側板部３ｂの内面に当接するように折り曲げ、
次に、前記四つの側板部３ａ，３ａ，３ｂ，３ｂを前記底板部２と直角に同方向に折り曲げたうえで、折り曲げられた前記一方の接合用耳部４ａに、折り曲げられた前記他方の接合用耳部４ｂを当接して接合し、
前記隔壁板１６には、前記防火発泡材１８を、当該隔壁板１６と前記一つの側板部３ａとの間に位置するように予め設けておき、
次に、前記通気用ガラリ１５を前記一つの側板部３ａの外側に前記通気口７を覆うようにして設け、前記隔壁板１６を前記一つの側板部３ａの内側に当該一つの側板部３ａと離間対向して設け、さらに当該通気用ガラリ１５と隔壁板１６とを前記一つの側板部３ａに取り付け固定することを特徴とする。 According to the third aspect of the present invention, the bottom plate portion 2 formed in the shape of a rectangular plate and the four side portions of the bottom plate portion 2 are formed to be bendable, and the vent hole 7 is formed in one of the four. Plate material 1 having four side plate portions 3a, 3a, 3b, 3b and joining ear portions 4a, 4b formed to be foldable at both ends of each side plate portion,
A partition plate 16 in which vent holes 16b (a large number of slits 16a) are formed;
A number of slits 15a are formed, and a ventilation gallery 15 having a protrusion that is flush with the bottom plate portion 2,
A fireproof foam 18 for foaming at the time of a fire to close the vent 7 of the one side plate portion 3a,
First, joining ears 4a and 4a formed at both ends of two side plate portions 3a and 3a formed on one parallel two sides of the bottom plate portion 2 are perpendicular to the side plate portion 3a. In addition to bending, the joining ears 4b and 4b formed at both ends of the two side plates 3b and 3b respectively formed on the other two parallel sides of the bottom plate 2 are applied to the inner surface of the side plate 3b. Bend to touch,
Next, the four side plate portions 3a, 3a, 3b, 3b are bent in the same direction at right angles to the bottom plate portion 2, and then the other one of the bent joining ear portions 4a is folded. Abutting and joining the joining ear 4b,
In the partition plate 16, the fireproof foam 18 is provided in advance so as to be positioned between the partition plate 16 and the one side plate portion 3 a.
Next, the ventilation gallery 15 is provided outside the one side plate portion 3a so as to cover the vent hole 7, and the partition plate 16 is provided inside the one side plate portion 3a with the one side plate portion 3a. The ventilation louver 15 and the partition plate 16 are attached and fixed to the one side plate portion 3a.

請求項３に記載の発明によれば、平行な二つの側板部３ａ，３ａの端部に形成された接合用耳部４ａ，４ａを当該側板部３ａに対して直角に折り曲げるとともに、他の二つの側板部３ｂ，３ｂの両端部に形成された接合用耳部４ｂ，４ｂを当該側板部３ｂの内面に当接するように折り曲げることによって、接合用耳部４ａ，４ｂを当接可能な状態にしておき、次に、四つの側板部３ａ，３ａ，３ｂ，３ｂを底板部２と直角に同方向に折り曲げたうえで、折り曲げられた一方の接合用耳部４ａに、折り曲げられた他方の接合用耳部４ｂを当接して接合することによって箱型を形成する。これによって、箱型の側板部３ａ，３ｂどうしの接合部には、接合用耳部４ａ，４ｂの折り曲げられた部分が現れ、側板部３ａ，３ｂの端部の切断面は内側に隠れる。したがって、板材１の接合部、つまり側板部３ａ，３ｂどうしの接合部の仕上がりが秀麗な換気フードを容易に製造できる。
また、通気口７が形成された一つの側板部３ａと、通気口１６ｂが形成された隔壁板１６との間に防火発泡材１８を設けるので、火災時には防火発泡材１８が発泡して通気口７を塞ぎ、火災の延焼を防止できる。また、防火発泡材１８を側板部３ａと隔壁板１６との間に設けるので、防火発泡材１８が発泡した際に、当該防火発泡材１８が側板部３ａと隔壁板１６とによって規制されて外側に逃げることがなく、通気口７を確実に塞ぐことができる。また、防火構造が隔壁板１６と防火発泡材１８による簡単な構成であるので、コスト的に優れたものとなる。 According to the invention described in claim 3 , the joining ears 4a, 4a formed at the ends of the two parallel side plate portions 3a, 3a are bent at right angles to the side plate portion 3a, and the other two By bending the joining ears 4b, 4b formed at both ends of the two side plate parts 3b, 3b so as to contact the inner surface of the side plate part 3b, the joining ear parts 4a, 4b can be brought into a contactable state. Next, the four side plate portions 3a, 3a, 3b, 3b are bent in the same direction at right angles to the bottom plate portion 2, and then the other bent joint is joined to the folded one joining ear portion 4a. A box shape is formed by abutting and joining the ear portions 4b. As a result, the bent portions of the joining ears 4a and 4b appear at the joint between the box-shaped side plate parts 3a and 3b, and the cut surfaces at the ends of the side plate parts 3a and 3b are hidden inside. Therefore, it is possible to easily manufacture a ventilation hood in which the joined portion of the plate member 1, that is, the finished portion of the joined portions of the side plate portions 3a and 3b is excellent.
Further, since the fireproof foam material 18 is provided between the one side plate portion 3a in which the vent hole 7 is formed and the partition plate 16 in which the vent hole 16b is formed, the fireproof foam material 18 foams in the event of a fire and the vent hole 7 can be blocked to prevent the spread of fire. Further, since the fireproof foam 18 is provided between the side plate portion 3a and the partition plate 16, when the fireproof foam material 18 is foamed, the fireproof foam material 18 is regulated by the side plate portion 3a and the partition plate 16 to the outside. The vent hole 7 can be reliably closed without escaping. Moreover, since the fireproof structure is a simple structure with the partition plate 16 and the fireproof foam material 18, the cost is excellent.

請求項４に記載の発明は、請求項３に記載の換気フードの製造方法において、
前記接合用耳部４ａ，４ｂを折り曲げた後、接合すべき接合用耳部４ａ，４ｂのうち少なくともいずれか一方にコーキング材１０を塗布しておき、
前記折り曲げられた前記一方の接合用耳部４ａに、折り曲げられた前記他方の接合用耳部４ｂを前記コーキング材１０を挟んで当接し、
次に、前記他方の接合用耳部４ｂが形成された側板部３ｂの表面から、前記他方の接合用耳部４ｂを通して、前記一方の接合用耳部４ａにリベット１１を打ち込んで、前記一方の接合用耳部４ａに他方の接合用耳部４ｂを接合することを特徴とする。 Invention of Claim 4 is a manufacturing method of the ventilation hood of Claim 3 ,
After bending the joining ears 4a and 4b, the caulking material 10 is applied to at least one of the joining ears 4a and 4b to be joined,
The one bent joining ear 4a is brought into contact with the other joined ear 4b folded across the caulking material 10;
Next, a rivet 11 is driven into the one joining ear 4a through the other joining ear 4b from the surface of the side plate 3b on which the other joining ear 4b is formed, The other joining ear 4b is joined to the joining ear 4a.

請求項４に記載の発明によれば、側板部３ａ，３ｂどうしの接合部分の防水性を確保しつつ、側板部３ａ，３ｂどうしを確実に接合した換気フードを容易に製造できる。 According to the fourth aspect of the present invention, it is possible to easily manufacture a ventilation hood in which the side plate portions 3a and 3b are reliably joined while securing the waterproofness of the joint portion between the side plate portions 3a and 3b.

本発明によれば、四つの側板部が底板部と直角に同方向に折り曲げられることによって形成される箱型において、隣り合う側板部のうちの一方の側板部の端部に折り曲げ形成された一方の接合用耳部に、他方の側板部の端部に折り曲げ形成された他方の接合用耳部が当接されて接合されているので、箱型の側板部どうしの接合部には、接合用耳部の折り曲げられた部分が現れ、側板部の端部の切断面は内側に隠れる。したがって、板材どうしの接合部、つまり側板部どうしの接合部を秀麗に仕上ることができ、また、このような換気フードを容易に製造できる。 According to the present invention, in the box shape formed by bending the four side plate portions in the same direction at right angles to the bottom plate portion, the side plate portions are formed to be bent at the end portion of one side plate portion of the adjacent side plate portions. Since one of the joining ears is joined to the joining part of the box-shaped side plate part by joining the other joining ear part formed by bending at the end of the other side plate part. A bent portion of the ear portion appears, and the cut surface of the end portion of the side plate portion is hidden inside. Therefore, it is possible to excellently finish the joint portion between the plate members, that is, the joint portion between the side plate portions, and such a ventilation hood can be easily manufactured.

本発明に係る換気フードの一例を示すもので、換気フードを形成するための板材１を示す平面図である。An example of the ventilation hood which concerns on this invention is a top view which shows the board | plate material 1 for forming a ventilation hood. 同、換気フードの斜視図である。It is a perspective view of a ventilation hood. 本発明に係る換気フードの製造方法を説明するためのもので、側板部を折り曲げている状態を示す斜視図である。It is for demonstrating the manufacturing method of the ventilation hood which concerns on this invention, and is a perspective view which shows the state which is bending the side-plate part. 同、側板部どうしを接合した状態を示す斜視図である。It is a perspective view which shows the state which joined the side plate part similarly. 同、フランジ片を折り曲げた状態を示す斜視図である。It is a perspective view which shows the state which bent the flange piece similarly. 同、隔壁板を取り付ける方法を説明するための斜視図である。It is a perspective view for demonstrating the method to attach a partition plate equally. 本発明に係る換気フードの側板部どうしの接合部を示す断面図である。It is sectional drawing which shows the junction part of the side plate parts of the ventilation hood which concerns on this invention. 本発明に係る換気フードの隔壁板と通気口部分を示す断面図である。It is sectional drawing which shows the partition board and ventilation hole part of the ventilation hood which concerns on this invention.

以下、図面を参照して本発明に係る換気フードおよび換気フードの製造方法の一例について説明する。
図１は本実施の形態の換気フードを形成するための板材１を示す平面図である。本実施の形態の換気フードは、図２に示すように、板材１を折り曲げ加工することによって四角形の箱型に形成されるものである。 Hereinafter, an example of a ventilation hood and a method for manufacturing the ventilation hood according to the present invention will be described with reference to the drawings.
FIG. 1 is a plan view showing a plate 1 for forming the ventilation hood of the present embodiment. As shown in FIG. 2, the ventilation hood of the present embodiment is formed into a rectangular box shape by bending the plate material 1.

板材１は塩ビ鋼板で形成されたものであり、正方形板状に形成されて前記箱型の底部を構成する底板部２と、この底板部２の四辺部にそれぞれ形成されて、当該底板部２と折曲線Ｌ１にて直角に折り曲げられることによって、前記箱型の側壁を構成する四つの側板部３ａ，３ａ，３ｂ，３ｂと、各側板部３ａ，３ｂの両端部にそれぞれ形成された接合用耳部４ａ，４ｂとを備えている。
底板部２の一方の平行な二辺部に形成された側板部３ａ，３ａの長辺部には、折曲線Ｌ２にて側板部３ａと直角に折り曲げられることによって、換気フードのフランジ部となるフランジ片５ａ，５ａが形成されている。フランジ片５ａ，５ａの長さは側板部３ａ，３ａの長さと等しくなっている。また、フランジ片５ａの長さ方向中央部には換気フードを壁等に固定する際に使用される取付孔６が形成されている。
底板部２の他方の二辺部に形成された側板部３ｂ，３ｂの長辺部には、折曲線Ｌ２にて側板部３ｂと直角に折り曲げられることによって、換気フードのフランジ部となるフランジ片５ｂ，５ｂが形成されている。フランジ片５ｂ，５ｂの長さは側板部３ｂ，３ｂの長さより長くなっており、端部は側板部３ｂ，３ｂの端部より外側に突出している。この突出長さはフランジ片５ａの短辺の長さと等しくなっている。また、フランジ片５ｂには、取付孔６がフランジ片５ｂの長辺方向に所定間隔で３つ形成されている。
なお、側板部３ａと側板部３ｂとは等しい平面形状となっているが、側板部３ａ，３ａのうち一方の側板部３ａには、通気口７が形成され、この通気口７の開口縁部に内側に突出する突片８が形成され、この突片８に孔８ａが形成されている。 The plate 1 is formed of a PVC steel plate, is formed in a square plate shape and forms a bottom plate portion 2 constituting the bottom of the box shape, and is formed on each of the four sides of the bottom plate portion 2, and the bottom plate portion 2. Are bent at right angles along the folding line L1, and are formed at the four side plate portions 3a, 3a, 3b, 3b constituting the box-shaped side walls and at both end portions of the side plate portions 3a, 3b, respectively. Ear portions 4a and 4b are provided.
The long side portion of the side plate portions 3a, 3a formed on one parallel two sides of the bottom plate portion 2 is bent at a right angle to the side plate portion 3a along the folding line L2, thereby forming a flange portion of the ventilation hood. Flange pieces 5a and 5a are formed. The length of the flange pieces 5a, 5a is equal to the length of the side plate portions 3a, 3a. Further, a mounting hole 6 that is used when the ventilation hood is fixed to a wall or the like is formed at the center in the length direction of the flange piece 5a.
A flange piece that becomes a flange portion of the ventilation hood by bending the long side portion of the side plate portions 3b, 3b formed on the other two sides of the bottom plate portion 2 at a right angle with the side plate portion 3b along a folding line L2. 5b and 5b are formed. The lengths of the flange pieces 5b, 5b are longer than the lengths of the side plate portions 3b, 3b, and the end portions protrude outward from the end portions of the side plate portions 3b, 3b. This protruding length is equal to the length of the short side of the flange piece 5a. Also, three attachment holes 6 are formed in the flange piece 5b at predetermined intervals in the long side direction of the flange piece 5b.
The side plate portion 3a and the side plate portion 3b have the same planar shape, but one side plate portion 3a of the side plate portions 3a and 3a is formed with a vent hole 7, and an opening edge portion of the vent hole 7 is formed. A projecting piece 8 projecting inward is formed, and a hole 8 a is formed in the projecting piece 8.

側板部３ａの両端部にはそれぞれ接合用耳部４ａ，４ａが形成されている。この接合用耳部４ａは折曲線Ｌ３にて側板部３ａと直角に折り曲げられるものであり、接合用耳部４ａの両端部にはそれぞれリベット打込み用の孔９ａ，９ａが形成されている。
側板部３ｂの両端部にはそれぞれ接合用耳部４ｂ，４ｂが形成されている。この接合用耳部４ｂは折曲線Ｌ４にて側板部３ｂの内面に当接するように１８０°折り曲げられるものであり、接合用耳部４ｂの両端部にはそれぞれリベット打込み用の孔９ｂ，９ｂが形成されている。
接合用耳部４ａ，４ｂは上記のように折り曲げられた状態で接合されるものであり、隣り合う接合用耳部４ａ，４ｂとの境界部には斜めの切込みＫが形成されている。また、接合用耳部４ｂが形成されている側板部３ｂの端部には、リベット打込み用の孔９ｃ，９ｃ
が前記孔９ｂ，９ｂと折曲線Ｌ４を境に対称的な位置に形成されている。 Joining ears 4a and 4a are formed at both ends of the side plate part 3a, respectively. The joining ear portion 4a is bent at a right angle with the side plate portion 3a along a folding line L3, and rivet driving holes 9a and 9a are formed at both ends of the joining ear portion 4a.
Joining ears 4b and 4b are formed at both ends of the side plate part 3b, respectively. The joining ear portion 4b is bent by 180 ° so as to abut on the inner surface of the side plate portion 3b along a folding line L4, and rivet driving holes 9b and 9b are provided at both ends of the joining ear portion 4b. Is formed.
The joining ears 4a and 4b are joined in the bent state as described above, and an oblique cut K is formed at the boundary between the joining joining ears 4a and 4b. Also, rivet driving holes 9c, 9c are formed at the end of the side plate portion 3b where the joining ear 4b is formed.
Are formed at symmetrical positions with respect to the holes 9b and 9b and the folding line L4.

次に、上記のような板材１を用いて本実施の形態の換気フードを製造する方法について説明する。
まず、図３に示すように、底板部２の一方の平行な二辺部にそれぞれ形成された二つの側板部３ａ，３ａの両端部に形成された接合用耳部４ａ，４ａを当該側板部３ａに対して折曲線Ｌ３にて直角に内側に折り曲げるとともに、底板部２の他方の平行な二辺部にそれぞれ形成された二つの側板部３ｂ，３ｂの両端部に形成された接合用耳部４ｂ，４ｂを当該側板部３ｂの内面に当接するように折曲線Ｌ４にて内側に１８０°折り曲げる。 Next, a method for manufacturing the ventilation hood of the present embodiment using the plate material 1 as described above will be described.
First, as shown in FIG. 3, joining ears 4a and 4a formed at both ends of two side plate portions 3a and 3a formed on one parallel two sides of the bottom plate portion 2 are connected to the side plate portion. 3a is bent inward at a folding line L3 at a right angle, and joined ears formed at both ends of two side plate portions 3b and 3b formed on the other two parallel sides of the bottom plate portion 2, respectively. 4b and 4b are bent 180 ° inward along a fold line L4 so as to contact the inner surface of the side plate portion 3b.

次に、接合すべき接合用耳部４ａ，４ｂの少なくともいずれか一方にコーキング材を塗布しておく。次に、四つの側板部３ａ，３ａ，３ｂ，３ｂを折曲線Ｌ１にて底板部２と直角に同方向に折り曲げたうえで、図３、図４および図７に示すように、折り曲げられた一方の接合用耳部４ａに、折り曲げられた他方の接合用耳部４ｂをコーキング材１０を挟んで当接する。
次に、図４および図７に示すように、他方の接合用耳部４ｂが形成された側板部３ｂの表面から、他方の接合用耳部４ｂを通して、一方の接合用耳部４ａにリベット１１を打ち込んで、一方の接合用耳部４ａに他方の接合用耳部４ｂを接合固定する。この際、接合用耳部４ｂ、接合用耳部４ａ、側板部３ｂにはそれぞれあらかじめ孔９ｂ，９ａ，９ｃが形成され、接合用耳部４ａ，４ｂを接合する際に、これら孔９ｂ，９ａ，９ｃが同軸となるのでリベット１１を容易に打込むことができる。
このようにして、隣り合う側板部３ａ，３ｂどうしが接合用耳部４ａ，４ｂによって接合されて箱型が形成される。 Next, a caulking material is applied to at least one of the joining ear portions 4a and 4b to be joined. Next, the four side plate portions 3a, 3a, 3b, and 3b were bent in the same direction at right angles to the bottom plate portion 2 along the folding line L1, and then bent as shown in FIGS. The other bent ear 4b is brought into contact with one of the bonding ears 4a with the caulking material 10 interposed therebetween.
Next, as shown in FIGS. 4 and 7, the rivet 11 is connected to one joining ear 4 a from the surface of the side plate 3 b on which the other joining ear 4 b is formed through the other joining ear 4 b. Then, the other joining ear 4b is joined and fixed to one joining ear 4a. At this time, holes 9b, 9a, and 9c are formed in advance in the joining ear 4b, the joining ear 4a, and the side plate 3b, respectively, and when joining the joining ears 4a and 4b, these holes 9b and 9a are formed. 9c are coaxial, so that the rivet 11 can be driven easily.
In this way, adjacent side plate portions 3a and 3b are joined together by the joining ear portions 4a and 4b to form a box shape.

次に、図５に示すように、フランジ片５ａ，５ｂをそれぞれ折曲線Ｌ２にて外側に直角に折り曲げることによって、換気フードのフランジ部を形成する。
次に、図６および図７に示すように、通気口７が形成された側板部３ａに、スリット１５ａが多数形成された通気用ガラリ１５を通気口７を覆うようにして配置する。また、通気用ガラリ１５の両端部には孔１５ｂ，１５ｂが形成されている。
一方、側板部３ａの内側に、多数のスリット１６ａによって通気口１６ｂが形成された隔壁板１６を側板部３ａと離間対向して配置する。隔壁板１６は断面コ字形のものであり、その底部には突片１７，１７が形成され、この突片１７，１７にねじ孔１７ａ，１７ａが形成されている。
そして、上記のようにして配置された通気用ガラリ１５の孔１５ｂ，１５ｂからねじを側板部３ａの突片８，８の孔８ａ，８ａに通したうえで、隔壁板１６の突片１７，１７のねじ孔１７ａ，１７ａにねじ込むことによって、通気用ガラリ１５と隔壁板１６とを側板部３ａに取り付け固定する。 Next, as shown in FIG. 5, the flange pieces 5a and 5b are bent at right angles to the outside at a folding line L2 to form a flange portion of the ventilation hood.
Next, as shown in FIGS. 6 and 7, a ventilation gallery 15 having a large number of slits 15 a is arranged on the side plate portion 3 a where the ventilation hole 7 is formed so as to cover the ventilation hole 7. Further, holes 15 b and 15 b are formed at both ends of the ventilation louver 15.
On the other hand, a partition plate 16 in which vent holes 16b are formed by a large number of slits 16a is disposed inside the side plate portion 3a so as to be spaced apart from the side plate portion 3a. The partition plate 16 has a U-shaped cross section, and projecting pieces 17 and 17 are formed at the bottom thereof, and screw holes 17a and 17a are formed in the projecting pieces 17 and 17, respectively.
And after passing a screw from the holes 15b, 15b of the ventilation louver 15 arranged as described above to the holes 8a, 8a of the protrusions 8, 8 of the side plate portion 3a, the protrusions 17, By screwing into the 17 screw holes 17a, 17a, the ventilation gallery 15 and the partition plate 16 are attached and fixed to the side plate portion 3a.

また、図８に示すように、側板部３ａと隔壁板１６との間には、防火発泡材１８，１８が通気口７、通気口１６ｂを塞がないようにして設けられている。この防火発泡材１８，１８は火災時に発泡して通気口７や通気口１６ｂを塞いで、火災の延焼を防ぐものである。
このような防火発泡材１８，１８は、例えば図６に示すように、隔壁板１６の長手方向に沿う壁部に予め設けておけば、隔壁板１６を取り付けると同時に側板部３ａと隔壁板１６との間に設けることができる。 Further, as shown in FIG. 8, fireproof foams 18 and 18 are provided between the side plate portion 3a and the partition plate 16 so as not to block the vent hole 7 and the vent hole 16b. The fireproof foams 18 and 18 foam in the event of a fire and block the vent 7 and vent 16b, thereby preventing the fire from spreading.
For example, as shown in FIG. 6, if the fireproof foams 18 and 18 are provided in advance on a wall portion along the longitudinal direction of the partition plate 16, the side plate portion 3 a and the partition plate 16 are attached at the same time as the partition plate 16 is attached. Between the two.

本実施の形態によれば、四つの側板部３ａ，３ａ，３ｂ，３ｂが底板部２と直角に同方向に折り曲げられることによって形成される箱型において、隣り合う側板部３ａ，３ｂのうちの一方の側板部３ａの端部に折り曲げ形成された一方の接合用耳部４ａに、他方の側板部３ｂの端部に折り曲げ形成された他方の接合用耳部４ｂが当接されて接合されているので、図７に示すように、箱型の側板部３ａ，３ｂどうしの接合部には、接合用耳部４ａ，４ｂの折り曲げられた部分が現れ、側板部３ａ，３ｂの端部の切断面は内側に隠れる。したがって、板材１の接合部、つまり側板部３ａ，３ｂどうしの接合部を秀麗に仕上ることができる。
また、接合用耳部４ａ，４ｂどうしがコーキング材１０によって水密に接合されるとともに、リベット１１によって固定されるので、側板部３ａ，３ｂどうしの接合部分の防水性を確保しつつ、側板部３ａ，３ｂどうしを確実に接合できる。 According to the present embodiment, among the adjacent side plate portions 3a and 3b in the box shape formed by bending the four side plate portions 3a, 3a, 3b, and 3b in the same direction at right angles to the bottom plate portion 2. One joining ear 4a formed by bending at the end of one side plate 3a is brought into contact with and joined by the other joining ear 4b formed by bending at the end of the other side plate 3b. Therefore, as shown in FIG. 7, the bent portions of the joining ear portions 4a and 4b appear at the joint portion between the box-shaped side plate portions 3a and 3b, and the end portions of the side plate portions 3a and 3b appear. The cut surface is hidden inside. Therefore, the junction part of the board | plate material 1, ie, the junction part of side board part 3a, 3b, can be finished finely.
Further, since the joining ear portions 4a and 4b are joined together in a watertight manner by the caulking material 10, and fixed by the rivet 11, the side plate portion 3a is secured while ensuring the waterproofness of the joined portion between the side plate portions 3a and 3b. , 3b can be reliably joined together.

さらに、通気口７が形成された一つの側板部３ａと、通気口１６ｂが形成された隔壁板１６との間に防火発泡材１８が設けられているので、火災時には防火発泡材１８が発泡して通気口７，１６ｂを塞ぎ、火災の延焼を防止できる。また、防火発泡材１８が側板部３ａと隔壁板１６との間に設けられているので、防火発泡材１８が発泡した際に、当該防火発泡材１８が側板部３ａと隔壁板１６とによって規制されて外側に逃げることがないので、通気口７，１６ｂを確実に塞ぐことができる。
また、防火構造が隔壁板１６と防火発泡材１８による簡単な構成であるので、コスト的に優れたものとなる。 Further, since the fireproof foam material 18 is provided between the one side plate portion 3a in which the vent hole 7 is formed and the partition plate 16 in which the vent hole 16b is formed, the fireproof foam material 18 is foamed in the event of a fire. Thus, the vents 7 and 16b can be blocked to prevent the spread of fire. Moreover, since the fireproof foam 18 is provided between the side plate portion 3 a and the partition plate 16, the fireproof foam 18 is restricted by the side plate portion 3 a and the partition plate 16 when the fireproof foam 18 is foamed. Thus, the vents 7 and 16b can be reliably closed because they do not escape to the outside.
Moreover, since the fireproof structure is a simple structure with the partition plate 16 and the fireproof foam material 18, the cost is excellent.

また、平行な二つの側板部３ａの端部に形成された接合用耳部４ａを当該側板部３ａに対して直角に折り曲げるとともに、他の二つの側板部３ｂの両端部に形成された接合用耳部４ｂを当該側板部３ｂの内面に当接するように折り曲げることによって、接合用耳部４ａ，４ｂを当接可能な状態にしておき、次に、四つの側板部３ａ，３ａ，３ｂ，３ｂを底板部２と直角に同方向に折り曲げたうえで、折り曲げられた一方の接合用耳部４ａに、折り曲げられた他方の接合用耳部４ｂを当接して接合することによって箱型を形成するので、箱型の側板部３ａ，３ｂどうしの接合部には、接合用耳部４ａ，４ｂの折り曲げられた部分が現れ、側板部３ａ，３ｂの端部の切断面は内側に隠れる。したがって、板材１の接合部、つまり側板部３ａ，３ｂどうしの接合部の仕上がりが秀麗な換気フードを容易に製造できる。
また、接合用耳部４ａ，４ｂどうしがコーキング材１０によって水密に接合されるとともに、リベット１１によって接合用耳部４ａ，４ｂどうしが固定されるので、側板部３ａ，３ｂどうしの接合部分の防水性を確保しつつ、側板部３ａ，３ｂどうしを確実に接合した換気フードを容易に製造できる。 Further, the joining ear 4a formed at the end of the two parallel side plates 3a is bent at a right angle with respect to the side plate 3a, and the joining ears are formed at both ends of the other two side plates 3b. By bending the ear portion 4b so as to contact the inner surface of the side plate portion 3b, the joining ear portions 4a and 4b are brought into a contactable state, and then the four side plate portions 3a, 3a, 3b and 3b are brought into contact. Is bent at right angles to the bottom plate portion 2 in the same direction, and the bent joint ear 4b is brought into contact with the folded joint ear 4a to form a box shape. Therefore, the bent portions of the joining ear portions 4a and 4b appear in the joint portion between the box-shaped side plate portions 3a and 3b, and the cut surfaces of the end portions of the side plate portions 3a and 3b are hidden inside. Therefore, it is possible to easily manufacture a ventilation hood in which the joined portion of the plate member 1, that is, the finished portion of the joined portions of the side plate portions 3a and 3b is excellent.
Further, the joining ears 4a and 4b are joined together in a watertight manner by the caulking material 10, and the joining ears 4a and 4b are fixed by the rivet 11, so that the joints between the side plate parts 3a and 3b are waterproofed. It is possible to easily manufacture a ventilation hood in which the side plate portions 3a and 3b are securely joined to each other while ensuring the performance.

なお、本実施の形態では、側板部３ａ，３ａ，３ｂ，３ｂを折り曲げて、これらを接合用耳部４ａ，４ｂによって接合した後、フランジ片５ａ，５ｂを外側に折り曲げたが、側板部３ａ，３ａ，３ｂ，３ｂを折り曲げる前に、フランジ片５ａ，５ｂを折り曲げておいてもよい。 In the present embodiment, the side plate portions 3a, 3a, 3b, 3b are bent and joined by the joining ear portions 4a, 4b, and then the flange pieces 5a, 5b are folded outward. , 3a, 3b, 3b may be bent before the flange pieces 5a, 5b are bent.

１板材
２底板部
３ａ，３ｂ側板部
４ａ，４ｂ接合用耳部
７通気口
１０コーキング材
１１リベット
１６隔壁板
１６ｂ通気口
１８防火発泡材 DESCRIPTION OF SYMBOLS 1 Board | plate material 2 Bottom board part 3a, 3b Side board part 4a, 4b Joining ear | edge part 7 Ventilation hole 10 Caulking material 11 Rivet 16 Partition board 16b Venting hole 18 Fireproof foaming material

Claims

A ventilation hood formed into a rectangular box shape by bending a metal plate,
The plate material is formed in a rectangular plate shape to form a bottom portion of the box shape, and is formed on each of the four sides of the bottom plate portion, and is bent at a right angle to the bottom plate portion. Four side plate portions constituting the side wall, and bonding ear portions formed respectively at both ends of each side plate portion,
The four side plate portions are bent in the same direction at right angles to the bottom plate portion,
Of the joining ears that are respectively formed on the adjacent side plate portions and are joined to each other, one joining ear portion is bent inward at right angles to the side plate portion on which the joining ear portions are formed, and the other joining joint portion is joined. The ear part is bent so as to contact the inner surface of the side plate part on which the ear part is formed,
The bent one of the joining ears is in contact with and joined to the other joined ear of the bent ,
Of the four side plate portions, one side plate portion is formed with a vent,
Inside the one side plate portion, a partition plate in which a vent is formed is provided to be spaced apart from the one side plate portion,
Between the one side plate portion and the partition plate, there is provided a fire-proof foam material that foams and closes the vent in the event of a fire,
On the outside of the one side plate part, a ventilation gallery in which a large number of slits are formed is provided so as to cover the vent hole of the one side plate part,
The ventilation hood , wherein the ventilation louver has a protrusion that is flush with the bottom plate .

The ventilation hood according to claim 1,
The both joining ears are brought into contact with each other with a caulking material interposed therebetween, and a rivet is used for joining the other from the surface of the side plate part on which the other joining ear part is formed. A ventilation hood which is joined by being driven into the one joining ear through the ear.

A bottom plate portion formed in a rectangular plate shape, four side plate portions formed on each of the four sides of the bottom plate portion so as to be bendable and having a vent hole formed in one of the four sides, and both ends of each side plate portion A plate member having a joining ear portion formed so as to be bendable at each portion;
A partition plate in which a vent is formed;
A ventilation louver having a plurality of slits formed and having a protrusion that is flush with the bottom plate part, and a fireproof foam material that foams in the event of a fire and closes the vent of the one side plate part. Leave
First, the bonding ears formed at both end portions of two side plate portions formed on one parallel two sides of the bottom plate portion are bent at a right angle with respect to the side plate portion, and the other of the bottom plate portions. Bending the joining ears formed at both ends of the two side plate parts formed respectively on the two parallel sides of the side plate so as to contact the inner surface of the side plate part,
Next, the four side plate portions are bent in the same direction at right angles to the bottom plate portion, and the one of the bent joining ear portions is brought into contact with and joined to the folded one of the joining ear portions. And
In the partition plate , the fireproof foam material is provided in advance so as to be positioned between the partition plate and the one side plate portion,
Next, the ventilation louver is provided outside the one side plate portion so as to cover the vent, and the partition plate is provided inside the one side plate portion so as to be opposed to the one side plate portion, and A method for manufacturing a ventilation hood, wherein the ventilation louver and the partition plate are attached and fixed to the one side plate portion.

In the manufacturing method of the ventilation hood of Claim 3 ,
After bending the joining ear, a caulking material is applied to at least one of the joining ears to be joined,
The one bent joining ear is in contact with the folded second joining ear sandwiched by the caulking material,
Next, a rivet is driven into the one joining ear through the other joining ear from the surface of the side plate portion on which the other joining ear is formed, to the one joining ear. A method for producing a ventilation hood, wherein the other joining ear is joined.