JP6565018B2 - Fan case member, and method of manufacturing a fan including a fan case using the fan case member - Google Patents

Fan case member, and method of manufacturing a fan including a fan case using the fan case member Download PDF

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JP6565018B2
JP6565018B2 JP2015170491A JP2015170491A JP6565018B2 JP 6565018 B2 JP6565018 B2 JP 6565018B2 JP 2015170491 A JP2015170491 A JP 2015170491A JP 2015170491 A JP2015170491 A JP 2015170491A JP 6565018 B2 JP6565018 B2 JP 6565018B2
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wall
development
fan
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fan case
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JP2017048691A (en
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幸洋 樋口
幸洋 樋口
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MinebeaMitsumi Inc
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Description

本発明はファンケース部材、及び、そのファンケース部材を用いたファンケースを備えたファンの製造方法に関するものである。   The present invention relates to a fan case member and a method for manufacturing a fan including a fan case using the fan case member.

従来、モータベース部（以下、ベース部という）及びベース部上に一体成形されたファン収容部を構成する側壁部を有するケーシング（ファンケース）と、ファン収容部内に位置するようにベース部に取付けられたインペラ及びモータを有するファン部と、を備えるファンが知られている（特許文献１参照）。
そして、このファンは、モータでインペラを回転させることで、ベース部と反対側に位置するファン収容部の開口から空気を取り入れて、ベース部側から空気を排出するようになっている。 Conventionally, a motor base portion (hereinafter referred to as a base portion) and a casing (fan case) having a side wall portion constituting a fan housing portion integrally formed on the base portion, and attached to the base portion so as to be located in the fan housing portion There is known a fan including a fan unit including an impeller and a motor (see Patent Document 1).
And this fan takes in air from the opening of the fan accommodating part located in the opposite side to a base part by rotating an impeller with a motor, and discharges air from the base part side.

特開２０１４―１２６０４１号公報JP 2014-126041 A

ところで、例えば、使用する環境の静圧が高い場合など、ベース部側からの空気の排出が行い難くなるため、ファン収容部の壁面とインペラの間の隙間などを通じて空気が空気を取り入れるベース部の反対側に位置するファン収容部の開口側に逆流するような場合がある。
このような場合、空気を取り入れるベース部の反対側に位置するファン収容部の開口の開口径を小さくして、空気を取り入れる開口側から空気が吹出し難くすることで、このような逆流を低減することが可能であり、良好なファンとすることができる。 By the way, for example, when the static pressure of the environment to be used is high, it is difficult to discharge air from the base part side. In some cases, the air flows backward to the opening side of the fan housing portion located on the opposite side.
In such a case, the back diameter is reduced by reducing the opening diameter of the opening of the fan housing portion located on the opposite side of the base portion for taking in air and making it difficult for air to blow out from the opening side for taking in air. Can be a good fan.

しかしながら、このように開口径を小さくして、ファン収容部内の空間の外径よりも開口径が小さい設計とすると、ベース部と側壁部とを一体成形する場合、ファン収容部を成形するための型を成形後に抜くことができないという問題がある。   However, when the opening diameter is reduced in this way and the opening diameter is designed to be smaller than the outer diameter of the space in the fan housing portion, when the base portion and the side wall portion are integrally formed, the fan housing portion is formed. There is a problem that the mold cannot be removed after molding.

また、上述とは異なる目的で、例えば、風量を多くするために、外径の大きいインペラを有するファン部を収容するためにファン収容部内の空間の一部の外径を大きくし、一方で、その外径を大きくした部分よりも開口側で外径が小さくなる開口部分がある場合にも、ベース部と側壁部とを一体成形するときに、ファン収容部を成形するための型を成形後に抜くことができないという問題がある。   Further, for the purpose different from the above, for example, in order to increase the air volume, to increase the outer diameter of a part of the space in the fan accommodating portion in order to accommodate the fan portion having the impeller having a large outer diameter, Even when there is an opening portion whose outer diameter is smaller on the opening side than the portion whose outer diameter is increased, when the base portion and the side wall portion are integrally formed, the mold for forming the fan housing portion is formed after molding There is a problem that it cannot be removed.

このため、上述のようなファン収容部内に比べ、ファン収容部のベース部と反対側に位置する開口側に開口径が小さくなる形状を有するファンケースの場合には、ベース部と側壁部を一体成形できないため、これらを別部品で作製する必要があり、ファンケースを構成するための部品点数が増えてしまうという問題がある。   For this reason, in the case of a fan case having a shape in which the opening diameter is smaller on the opening side opposite to the base portion of the fan housing portion than in the fan housing portion as described above, the base portion and the side wall portion are integrated. Since it cannot be molded, it is necessary to produce these as separate parts, and there is a problem that the number of parts for configuring the fan case increases.

本発明は、上記事情にかんがみてなされたものであり、ファン収容部内に比べ、ファン収容部のベース部と反対側に位置する開口側に開口径が小さくなる形状を有するファンケースであっても、部品点数を増やすことなくファンケースを構成することができるファンケース部材を提供することを第１の目的とし、そのファンケース部材を用いたファンケースを備えるファンの製造方法を提供することを第２の目的とする。   The present invention has been made in view of the above circumstances, and even in a fan case having a shape in which the opening diameter is smaller on the opening side located on the opposite side to the base portion of the fan housing portion than in the fan housing portion. The first object of the present invention is to provide a fan case member that can constitute a fan case without increasing the number of parts, and to provide a method of manufacturing a fan including a fan case using the fan case member. The purpose of 2.

本発明は、上記目的を達成するために、以下の構成によって把握される。
（１）本発明のファンケース部材は、ベース部と、ファンケースの状態で前記ベース部上に位置するファン収容部を構成する側壁部と、を備え、前記側壁部の少なくとも一部は、前記ベース部を前記側壁部が位置する側から見る正面視で、平面展開可能な展開側壁部とされている。
（２）上記（１）の構成において、前記展開側壁部は、前記ファン収容部を規定する第１展開壁及び第２展開壁と、を備え、前記第１展開壁及び前記第２展開壁が、前記ベース部に対して観音開き状に平面展開するように、前記ベース部の対向する側辺に折り曲げ可能に繋がっている。 The present invention is grasped by the following composition in order to achieve the above-mentioned object.
(1) The fan case member of the present invention includes a base portion and a side wall portion that constitutes a fan housing portion located on the base portion in the state of the fan case, and at least a part of the side wall portion is In a front view when the base portion is viewed from the side where the side wall portion is located, the base portion is a development side wall portion that can be developed in a plane.
(2) In the configuration of (1), the development side wall includes a first development wall and a second development wall that define the fan housing portion, and the first development wall and the second development wall are The base portion is foldably connected to the opposite side sides of the base portion so as to expand in a double-spread manner with respect to the base portion.

（３）上記（２）の構成において、さらに、前記展開側壁部は、前記第１展開壁と前記第２展開壁を閉じたときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される一方の複合側面である第１複合側面に設けられ、前記第１複合側面の外壁となる第１外壁用展開壁と、前記第１展開壁と前記第２展開壁を閉じたときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される他方の複合側面である第２複合側面に設けられ、前記第２複合側面の外壁となる第２外壁用展開壁と、を備え、前記第１外壁用展開壁が前記第１複合側面に設けられるように、前記第１複合側面側に折り曲げ可能に前記第１展開壁若しくは前記第１複合側面側の前記第１展開壁及び前記第２展開壁が繋がっていない前記ベース部の側辺のいずれかに繋がっており、前記第２外壁用展開壁が前記第２複合側面に設けられるように、前記第２複合側面側に折り曲げ可能に前記第２展開壁若しくは前記第２複合側面側の前記第１展開壁及び前記第２展開壁が繋がっていない前記ベース部の側辺のいずれかに繋がっている。 (3) In the configuration of (2), the development side wall portion further includes an outer surface of the first development wall and an outer surface of the second development wall when the first development wall and the second development wall are closed. When the first deployment wall and the second deployment wall are closed on the first complex side, which is one of the complex sides constituted by A second development wall for a second outer wall, which is provided on a second composite side which is the other composite side composed of an outer surface of the first development wall and an outer surface of the second development wall, and serves as an outer wall of the second composite side. The first development on the first development wall or the first composite side is foldable to the first composite side so that the first outer wall development wall is provided on the first composite side Connected to any one of the sides of the base portion where the wall and the second development wall are not connected The second deployment wall or the first deployment wall on the second composite side surface is foldable to the second composite side surface side so that the second outer wall deployment wall is provided on the second composite side surface. And the second development wall is connected to any one of the sides of the base portion.

（４）上記（１）の構成において、前記展開側壁部は、前記ファン収容部を規定する第１展開壁と、前記ファン収容部を規定する前記第１展開壁に対向配置される第２展開壁と、前記第１展開壁と前記第２展開壁が合わさったときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される一方の複合側面である第１複合側面に設けられ、前記第１複合側面の外壁となる第１外壁用展開壁と、前記第１展開壁と前記第２展開壁が合わさったときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される他方の複合側面である第２複合側面に設けられ、前記第２複合側面の外壁となる第２外壁用展開壁と、を備え、前記展開側壁部は、前記第１外壁用展開壁が前記第１展開壁及び前記第２展開壁に対して折り曲げ可能に前記第１展開壁及び第２展開壁に繋がっているとともに、前記第２外壁用展開壁が前記第１外壁用展開壁を基準に前記第１展開壁若しくは前記第２展開壁の外側に位置して隣接する前記第１展開壁若しくは前記第２展開壁に対して折り曲げ可能に繋がった状態になっており、前記展開側壁部が、前記正面視で、前記ベース部に対して平面展開された状態で、前記第１展開壁、前記第２展開壁、前記第１前記外壁用展開壁又は前記第２前記外壁用展開壁のうちのいずれか１つが前記ベース部の側辺に折り曲げ可能に繋がっている。 (4) In the configuration of (1), the development side wall portion includes a first development wall that defines the fan housing portion, and a second development that is disposed opposite to the first deployment wall that defines the fan housing portion. Provided on the first composite side surface, which is one of the composite side surfaces constituted by the wall and the outer surface of the first development wall and the outer surface of the second development wall when the first development wall and the second development wall are combined. A first outer wall developing wall that is an outer wall of the first composite side surface, and an outer surface of the first developing wall and an outer surface of the second developing wall when the first developing wall and the second developing wall are combined. A second outer wall development wall provided on a second composite side surface that is the other composite side surface constituted by the second composite side surface, wherein the development side wall portion is the first outer wall development. The first development is such that a wall can be bent with respect to the first development wall and the second development wall. And the second outer wall developing wall is located adjacent to the first developing wall or the second developing wall with respect to the first outer wall developing wall. The first development wall or the second development wall is connected in a foldable manner, and the development side wall portion is planarly developed with respect to the base portion in the front view. Any one of the developing wall, the second developing wall, the first developing wall for the outer wall, or the second developing wall for the outer wall is connected to the side of the base portion so as to be bendable.

（５）上記（１）から（４）のいずれか１つの構成において、前記ファン収容部が、前記ファンケースの状態で前記ベース部と反対側に位置する開口に向かってベース部側から前記ファン収容部の空間の外径が小さくなる、若しくは、中間位置から前記ベース部及び前記開口に向かって前記ファン収容部の空間の外径が小さくなるようになっている。 (5) In the configuration of any one of (1) to (4) above, the fan housing portion may be configured such that the fan housing portion from the base portion side toward the opening located on the side opposite to the base portion in the state of the fan case. The outer diameter of the space of the housing portion decreases, or the outer diameter of the space of the fan housing portion decreases from the intermediate position toward the base portion and the opening.

（６）上記（１）の構成において、前記側壁部は、前記ベース部に一体に形成された固定壁部と、前記固定壁部に繋がり、前記正面視で、平面展開するように前記固定壁部に対して折り曲げ可能である前記展開側壁部と、を備える。
（７）上記（６）の構成において、前記展開側壁部は、前記固定壁部に対して観音開き状に平面展開するように、前記固定壁部の対向する上辺に折り曲げ可能に繋がる第１展開壁と、前記第１展開壁に対向する第２展開壁と、を備える。
（８）上記（７）の構成において、前記第１展開壁及び前記第２展開壁が、前記ファンケースの状態でベース部と反対側に位置する開口を小さくする前記ファン収容部側に出っ張る開口縁部を備える。
（９）上記（８）の構成において、前記第１展開壁及び前記第２展開壁が、前記開口縁部を有する前記側壁部からなる。
（１０）上記（６）の構成において、前記側壁部は、前記ファンケースの状態でベース部と反対側に位置する開口を小さくする前記ファン収容部側に出っ張る開口縁部を備え、前記展開側壁部は、前記固定壁部に対して展開するようにされた１つの展開壁からなり、前記展開壁が、前記開口縁部を有する前記側壁部からなる。
（１１）上記（６）の構成において、前記側壁部は、前記ファンケースの状態で前記ベース部と反対側に位置する開口を小さくする前記ファン収容部側に出っ張る開口縁部を備え、前記展開側壁部は、前記固定壁部に対して展開するようにされた１つの展開壁だけからなり、前記展開壁が、前記開口縁部を有する前記開口縁部に沿った前記開口縁部近傍の前記側壁部の一部だけからなる。 (6) In the configuration of (1), the side wall portion is connected to the fixed wall portion formed integrally with the base portion and the fixed wall portion, and is fixed to the fixed wall so as to be flattened in the front view. And the development side wall part that can be bent with respect to the part.
(7) In the configuration according to (6), the development side wall portion is connected to the upper side of the fixed wall portion so as to be foldable so as to be flattened in a double-spread shape with respect to the fixed wall portion. And a second development wall facing the first development wall.
(8) In the configuration of (7) above, the first and second developing walls have an opening protruding toward the fan housing portion that reduces the opening located on the side opposite to the base portion in the state of the fan case. With an edge.
(9) In the configuration of (8), the first development wall and the second development wall include the side wall portion having the opening edge portion.
(10) In the configuration of (6), the side wall portion includes an opening edge protruding toward the fan housing portion that reduces an opening located on the side opposite to the base portion in the state of the fan case, and the development side wall The part is composed of one deploying wall that is developed with respect to the fixed wall part, and the deploying wall is composed of the side wall part having the opening edge.
(11) In the configuration of (6), the side wall includes an opening edge that protrudes toward the fan housing portion that reduces the opening located on the side opposite to the base in the state of the fan case. The side wall portion is composed of only one deployment wall that is adapted to be deployed with respect to the fixed wall portion, and the deployment wall is located near the opening edge along the opening edge having the opening edge. It consists of only a part of the side wall.

（１２）本発明のファンの製造方法は、上記（１）から（１１）のいずれか１つの構成を有するファンケース部材及びファン部を備えるファンの製造方法であって、前記ファンケース部材の展開側壁部を平面展開した状態で前記ベース部に前記ファン部を設ける工程と、前記ベース部に前記ファン部を設けた状態で、前記展開側壁部が側壁部となるようにして前記ファンケース部材を前記ファンケースの状態にする工程と、を含む。 (12) A fan manufacturing method according to the present invention is a fan manufacturing method including a fan case member and a fan unit having any one of the above-described configurations (1) to (11), and the fan case member is developed. The step of providing the fan portion on the base portion in a state where the side wall portion is flatly developed, and the fan case member in a state where the fan portion is provided on the base portion so that the development side wall portion becomes the side wall portion. And a step of bringing the fan case into a state.

本発明によれば、ファン収容部内に比べ、ファン収容部のベース部と反対側に位置する開口側に開口径が小さくなる形状を有するファンケースであっても、部品点数を増やすことなくファンケースを構成することができるファンケース部材、及びそのファンケース部材を用いたファンケースを備えるファンの製造方法を提供することができる。   According to the present invention, even if the fan case has a shape whose opening diameter is smaller on the opening side opposite to the base part of the fan housing portion than in the fan housing portion, the fan case does not increase the number of parts. And a fan manufacturing method including a fan case using the fan case member can be provided.

本発明に係る第１実施形態のファンケースの斜視図である。It is a perspective view of the fan case of a 1st embodiment concerning the present invention. 図１のファンケースのためのファンケース部材の斜視図である。It is a perspective view of the fan case member for the fan case of FIG. 図１のファンケースを２分割した場合の半分を示す断面図である。It is sectional drawing which shows the half at the time of dividing the fan case of FIG. 1 into two. 第１実施形態のファンケースの変形例を示すファンケースを２分割した場合の半分を示す断面図である。It is sectional drawing which shows the half at the time of dividing into 2 the fan case which shows the modification of the fan case of 1st Embodiment. 本発明に係る第２実施形態のファンケース部材の斜視図である。It is a perspective view of the fan case member of 2nd Embodiment which concerns on this invention. 本発明に係る第３実施形態のファンケース部材の斜視図である。It is a perspective view of the fan case member of 3rd Embodiment which concerns on this invention. 本発明に係る第４実施形態のファンケース部材の斜視図である。It is a perspective view of the fan case member of 4th Embodiment concerning this invention. 本発明に係る第４実施形態のファンケース部材の第１変形例の斜視図である。It is a perspective view of the 1st modification of the fan case member of 4th Embodiment which concerns on this invention. 本発明に係る第４実施形態のファンケース部材の第２変形例の斜視図である。It is a perspective view of the 2nd modification of the fan case member of 4th Embodiment which concerns on this invention. 本発明に係る第４実施形態のファンケース部材の第３変形例の斜視図である。It is a perspective view of the 3rd modification of the fan case member of 4th Embodiment which concerns on this invention.

以下、本発明を実施するための形態(以下、「実施形態」という)を、添付図面に基づいて詳細に説明する。
なお、実施形態の説明の全体を通して同じ要素には同じ番号を付している。 DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the accompanying drawings.
Note that the same number is assigned to the same element throughout the description of the embodiment.

（第１実施形態）
図１は、本発明に係る第１実施形態のファンケースを示す斜視図であり、図２はファンケースに組立てる前のファンケース部材を示す斜視図である。 (First embodiment)
FIG. 1 is a perspective view showing a fan case of a first embodiment according to the present invention, and FIG. 2 is a perspective view showing a fan case member before being assembled to the fan case.

図２に示すように、ファンケース部材１０は、図示しないインペラ及びモータを有するファン部を載置するファン載置部２１を備えるベース部２０と、図１に示すファンケース４０の状態となったときに、ベース部２０上に位置するファン収容部３１を構成する側壁部３０（図１参照）と、を備えている。
なお、ベース部２０は、側壁部３０が位置することになる外側の部分２３（図２参照）とファン載置部２１との間が４本のスポーク２２で一体に接続されており、そのスポーク２２間の隙間を通じて空気を吹き出すことができるようになっている。 As shown in FIG. 2, the fan case member 10 is in a state of a base part 20 including a fan mounting part 21 on which a fan part having an impeller and a motor (not shown) is mounted, and a fan case 40 shown in FIG. In some cases, a side wall portion 30 (see FIG. 1) constituting the fan housing portion 31 located on the base portion 20 is provided.
In addition, the base part 20 is integrally connected by the four spokes 22 between the outer part 23 (refer FIG. 2) in which the side wall part 30 is located, and the fan mounting part 21, The spoke Air can be blown out through the gap between the two.

そして、図２を見るとわかるように、ファンケース部材１０は、ファンケース４０の状態において、ベース部２０を側壁部３０が位置する側から見る正面視（Ａ矢視）で平面展開するように、ベース部２０に対して平面展開する展開側壁部３２として構成されている。   As can be seen from FIG. 2, the fan case member 10 is deployed in a plan view in a front view (viewed with an arrow A) when the base portion 20 is viewed from the side where the side wall portion 30 is located in the state of the fan case 40. In addition, it is configured as a development side wall portion 32 that is flatly developed with respect to the base portion 20.

具体的には、展開側壁部３２は、ファン収容部３１（図１参照）の内壁面３１ａが２つに平面展開するように、平面展開可能なファン収容部３１を規定する第１展開壁３２ａ及び第２展開壁３２ｂと、を備えている。
そして、第１展開壁３２ａ及び第２展開壁３２ｂは、ベース部２０に対して観音開き状に平面展開するように、ベース部２０の対向する側辺に折り曲げ可能に繋がっている。 Specifically, the developing side wall 32 has a first developing wall 32a that defines the fan accommodating portion 31 that can be planarly developed so that the inner wall surface 31a of the fan accommodating portion 31 (see FIG. 1) is two-dimensionally developed. And a second deployment wall 32b.
And the 1st deployment wall 32a and the 2nd deployment wall 32b are connected so that it can be bent to the opposite side of base part 20 so that plane development may be carried out in the shape of a double door with respect to base part 20.

なお、第１展開壁３２ａと第１展開壁３２ａが繋がるベース部２０の側辺とは、第１展開壁３２ａを閉じるようにしたときに、第１展開壁３２ａがベース部２０に対して直交するようにベース部２０上に位置できるように、第１展開壁３２ａとベース部２０の側辺との繋がり部分の境界線を基準に、第１展開壁３２ａとベース部２０の側部には、４５°の傾斜が形成されている。
同様に、第２展開壁３２ｂ側においても、第２展開壁３２ｂとベース部２０の側辺との繋がり部分の境界線を基準に、第２展開壁３２ｂとベース部２０の側部には、４５°の傾斜が形成されている。 The first developing wall 32a and the side of the base portion 20 to which the first developing wall 32a is connected are orthogonal to the base portion 20 when the first developing wall 32a is closed. In order to be able to be positioned on the base portion 20, the side of the first developing wall 32 a and the side of the base portion 20 is based on the boundary line of the connecting portion between the first developing wall 32 a and the side of the base portion 20. , A 45 ° slope is formed.
Similarly, on the side of the second development wall 32b, on the side of the second development wall 32b and the base portion 20 on the side of the connecting portion between the second development wall 32b and the side of the base portion 20, A 45 ° slope is formed.

しかしながら、本実施形態では、第１展開壁３２ａ及び第２展開壁３２ｂが、ベース部２０の側辺の下部（下辺）で繋がっているようにしているため、４５°傾斜を設けるようにしているが、ベース部２０の側辺の上部（上辺）で繋がっている場合には、このような傾斜は不要である。   However, in the present embodiment, since the first developing wall 32a and the second developing wall 32b are connected to each other at the lower part (lower side) of the side of the base part 20, an inclination of 45 ° is provided. However, when connected at the upper part (upper side) of the side of the base part 20, such an inclination is unnecessary.

また、本実施形態では、展開側壁部３２として、図１に示すように、第１展開壁３２ａと第２展開壁３２ｂを閉じたときに、第１展開壁３２ａの外面３２ａａ（図２参照）と第２展開壁３２ｂの外面３２ｂｂ（図２参照）とで構成される一方の複合側面３３である第１複合側面に設けられる、第１複合側面の外壁となる第１外壁用展開壁３２ｃと、第１展開壁３２ａの外面３２ａａ（図２参照）と第２展開壁３２ｂの外面３２ｂｂ（図２参照）とで構成される他方の複合側面３３である第２複合側面に設けられる、第２複合側面の外壁となる第２外壁用展開壁３２ｄを備えている。
なお、図２に示すように、第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄも第１展開壁３２ａ及び第２展開壁３２ｂと同様に、ベース部２０の側辺との繋がり部分の境界線を基準に、第１外壁用展開壁３２ｃとベース部２０の側部には、４５°の傾斜が形成されており、第２外壁用展開壁３２ｄとベース部２０の側部には、４５°の傾斜が形成されている。
但し、この傾斜は４５°に限定されるものではなく、ファンケース４０の状態とするときに必要な折り曲げが行える傾斜角になっていればよい。 Moreover, in this embodiment, as shown in FIG. 1, as the development side wall part 32, when the first development wall 32a and the second development wall 32b are closed, the outer surface 32aa of the first development wall 32a (see FIG. 2). And a first outer wall developing wall 32c, which is an outer wall of the first composite side surface, provided on the first composite side surface, which is one composite side surface 33 composed of the outer surface 32bb (see FIG. 2) of the second developing wall 32b. The second composite side surface, which is the other composite side surface 33 composed of the outer surface 32aa (see FIG. 2) of the first development wall 32a and the outer surface 32bb (see FIG. 2) of the second development wall 32b, A second outer wall developing wall 32d is provided as an outer wall of the composite side surface.
As shown in FIG. 2, the first outer wall developing wall 32c and the second outer wall developing wall 32d are connected to the side of the base portion 20 in the same manner as the first developing wall 32a and the second developing wall 32b. With respect to the boundary line, the side wall of the first outer wall developing wall 32c and the base part 20 is inclined at 45 °, and the second outer wall developing wall 32d and the side part of the base part 20 are inclined. , A 45 ° slope is formed.
However, this inclination is not limited to 45 °, and it is sufficient that the inclination is an angle at which the fan case 40 can be bent when necessary.

ここで、図２を見るとわかるように、第１展開壁３２ａ及び第２展開壁３２ｂは、どちらも内壁面３１ａがベース部２０側より、図１のファンケース４０の状態となったときに、ベース部２０と反対側になる開口側の方が内側に位置するように傾斜している。   Here, as can be seen from FIG. 2, the first developing wall 32a and the second developing wall 32b are both when the inner wall surface 31a is in the state of the fan case 40 of FIG. The opening side that is opposite to the base portion 20 is inclined so as to be located on the inner side.

このため、図３に、図１に示すファンケース４０を半分に分割した断面図を示すが、図３を見るとわかるように、内壁面３１ａが上述のように傾斜していることで、このファンケース部材１０を用いたファンケース４０では、ベース部２０側からベース部と反対側となる開口に向かってファン収容部３１内の空間の外径（以下、単に、ファン収容部３１の外径という場合がある）がテーパ状に小さくなっており、ファン収容部３１の外径よりもベース部２０と反対側に位置するファン収容部３１の開口の方が小さくなるようになっている。
なお、以下、ベース部２０と反対側に位置するファン収容部３１の開口を、単に、ファン収容部開口と記載する場合がある。 For this reason, FIG. 3 shows a sectional view of the fan case 40 shown in FIG. 1 divided in half. As can be seen from FIG. 3, the inner wall surface 31a is inclined as described above. In the fan case 40 using the fan case member 10, the outer diameter of the space in the fan accommodating portion 31 (hereinafter simply referred to as the outer diameter of the fan accommodating portion 31) from the base portion 20 side toward the opening opposite to the base portion. In other words, the opening of the fan accommodating portion 31 located on the opposite side of the base portion 20 is smaller than the outer diameter of the fan accommodating portion 31.
Hereinafter, the opening of the fan accommodating portion 31 located on the side opposite to the base portion 20 may be simply referred to as a fan accommodating portion opening.

このような形状のファンケース４０の場合、ファン収容部３１の形状を成形するための型をファンケース４０の状態になった後に引き抜こうとしても、ファン収容部開口がファン収容部３１の内部の外径より小さいため、引き抜くことができない。   In the case of the fan case 40 having such a shape, even if an attempt is made to pull out a mold for forming the shape of the fan accommodating portion 31 after the fan case 40 is in the state, the fan accommodating portion opening is inside the fan accommodating portion 31. Since it is smaller than the outer diameter, it cannot be pulled out.

したがって、ベース部２０と側壁部３０（図１参照）を一体成形することができないことになるが、本実施形態のように、側壁部３０を展開側壁部３２としておくことで、展開側壁部３２をベース部２０に対して平面展開し、型抜きの障害となる構造がないようにした状態としてファンケース部材１０を成形するようにすれば、ベース部２０及び側壁部３０となる部分を一体成形することが可能となるので、ファンケース４０を構成するための部品点数が増えることがない。   Therefore, although the base part 20 and the side wall part 30 (refer FIG. 1) cannot be integrally molded, the side wall part 30 is made into the expansion | deployment side wall part 32 like this embodiment, and the expansion | deployment side wall part 32 is shown. If the fan case member 10 is molded in a state in which the fan case member 10 is molded in a state in which it is flattened with respect to the base portion 20 so that there is no structure that obstructs the die removal, the portions that will become the base portion 20 and the side wall portion 30 are integrally molded Therefore, the number of parts for configuring the fan case 40 does not increase.

ところで、上記のように、ファンケース４０の状態でファン収容部開口が小さい場合、ベース部２０のファン載置部２１に図示しないファン部を取付ける作業を、図１に示すファンケース４０の状態とした後に行うようにすると、作業が行い難い。   Incidentally, as described above, when the fan accommodating portion opening is small in the state of the fan case 40, the operation of attaching the fan portion (not shown) to the fan mounting portion 21 of the base portion 20 is the same as the state of the fan case 40 shown in FIG. If you do it afterwards, it will be difficult to do the work.

また、図示しないファン部のインペラが、大きい空間に設計されているファン収容部３１に合わせたものとされ、インペラの直径がファン収容部開口の直径よりも大きい場合には、図１に示すファンケース４０の状態とした後にベース部２０のファン載置部２１にファン部を取付ける作業自体ができないことになる。   In addition, when the impeller of the fan part (not shown) is adapted to the fan housing part 31 designed in a large space and the diameter of the impeller is larger than the diameter of the fan housing part opening, the fan shown in FIG. The operation of attaching the fan part to the fan mounting part 21 of the base part 20 after the state of the case 40 cannot be performed.

そこで、本実施形態のファンケース部材１０を用いてファンを製造するときには、以下のような手順としてファンを製造するのが好適である。
まず、最初に図２に示すように展開側壁部３２がベース部２０に対して平面展開された状態で、図示しないファン部をベース部２０のファン載置部２１に載置し、取付ける工程を行う。 Therefore, when manufacturing a fan using the fan case member 10 of the present embodiment, it is preferable to manufacture the fan in the following procedure.
First, as shown in FIG. 2, a step of mounting and mounting a fan portion (not shown) on the fan mounting portion 21 of the base portion 20 in a state where the development side wall portion 32 is planarly expanded with respect to the base portion 20. Do.

次に、ベース部２０に図示しないファン部を設けた状態で、展開側壁部３２が図１に示す側壁部３０の状態となるようにしてファンケース部材１０をファンケース４０の状態にする工程を行うことでファンを製造する。   Next, in a state where the fan portion (not shown) is provided in the base portion 20, the step of bringing the fan case member 10 into the state of the fan case 40 so that the development side wall portion 32 becomes the side wall portion 30 shown in FIG. A fan is manufactured by doing.

このファンケース部材１０をファンケース４０の状態にする工程では、例えば、はじめに観音開き状になっている第１展開壁３２ａ及び第２展開壁３２ｂを閉じて、ベース部２０と当接する底面を超音波融着して、第１展開壁３２ａ及び第２展開壁３２ｂをベース部２０に一体化する。   In the step of turning the fan case member 10 into the state of the fan case 40, for example, first, the first development wall 32a and the second development wall 32b that are double-spread are closed, and the bottom surface contacting the base portion 20 is ultrasonically closed. The first development wall 32a and the second development wall 32b are integrated with the base portion 20 by fusing.

次に、図１に示すように、第１展開壁３２ａの外面３２ａａ（図２参照）と第２展開壁３２ｂの外面３２ｂｂ（図２参照）とで構成される２つの複合側面３３のうちの一方の複合側面３３である第１複合側面に第１外壁用展開壁３２ｃを当接させ、他方の複合側面３３である第２複合側面に第２外壁用展開壁３２ｄを当接させるように複合側面３３側に第１外壁用展開壁３２及び第２外壁用展開壁３２ｄを折り曲げる。   Next, as shown in FIG. 1, of the two composite side surfaces 33 constituted by the outer surface 32aa (see FIG. 2) of the first developing wall 32a and the outer surface 32bb (see FIG. 2) of the second developing wall 32b. The first outer wall developing wall 32c is brought into contact with the first outer side wall 33c, which is one of the composite side faces 33, and the second outer wall developing wall 32d is brought into contact with the second composite side face, which is the other composite side face 33. The first outer wall developing wall 32 and the second outer wall developing wall 32d are bent on the side surface 33 side.

そして、第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄがそれぞれ複合側面３３に当接した状態で超音波融着を行い第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄを第１展開壁３２ａ及び第２展開壁３２ｂに一体化するようにすればよい。   Then, ultrasonic fusion is performed in a state where the first outer wall developing wall 32c and the second outer wall developing wall 32d are in contact with the composite side surface 33, and the first outer wall developing wall 32c and the second outer wall developing wall 32d are formed. What is necessary is just to make it integrate with the 1st expansion | deployment wall 32a and the 2nd expansion | deployment wall 32b.

なお、上記では、超音波融着で一体化させる場合について説明したが、超音波融着に限定される必要はなく、例えば、接着固定で一体化したり、ラッチ構造などの機械的に係合するような構造を持たせておいて機械的に一体化するようにしても良い。   In addition, although the case where it integrated by ultrasonic fusion was demonstrated above, it does not need to be limited to ultrasonic fusion, For example, it integrates by adhesion fixation, or mechanically engages, such as a latch structure. Such a structure may be provided and mechanically integrated.

ところで、図１を見るとわかるように、上記実施形態では、周囲に隙間のないファン収容部３１が第１展開壁３２ａ及び第２展開壁３２ｂで形成されているため、２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）を省略しても良い。   By the way, as can be seen from FIG. 1, in the above embodiment, the fan accommodating portion 31 having no gap around it is formed by the first deployment wall 32a and the second deployment wall 32b. The first outer wall developing wall 32c and the second outer wall developing wall 32d may be omitted.

一方、図４に示すような場合には、２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）を設けることが好適である。
図４は、第１実施形態の変形例のファンケース４０を示すファンケース４０を半分に切断した状態の断面図である。 On the other hand, in the case shown in FIG. 4, it is preferable to provide two outer wall developing walls (first outer wall developing wall 32c and second outer wall developing wall 32d).
FIG. 4 is a cross-sectional view of the fan case 40 showing a modified fan case 40 of the first embodiment, cut in half.

図４に示すように、この変形例のファンケース４０の場合、ファン収容部３１の内壁面３１ａが内壁面３１ａの中間位置からベース部２０側及びベース部２０と反対側の開口側に向かって緩やかな曲面を描きながら、ファン収容部３１の内側に傾斜（ラウンド）するようになっている。   As shown in FIG. 4, in the case of the fan case 40 of this modification, the inner wall surface 31 a of the fan housing portion 31 is directed from the intermediate position of the inner wall surface 31 a toward the base portion 20 side and the opening side opposite to the base portion 20. While drawing a gently curved surface, it is inclined (rounded) inside the fan accommodating portion 31.

このような形状とすると、ファンケース４０のファン収容部３１内に配置される図示しないファン部の外形が大きくなるところだけ、大きな内部空間を有するようにして、それ以外の部分の空間を低減することができる。
したがって、ファンケース４０のファン収容部３１内に渦流などができやすい空間ができるのを抑制した設計などが行い易い。 With such a shape, only a portion where the outer shape of the fan portion (not shown) arranged in the fan housing portion 31 of the fan case 40 becomes large has a large internal space, and the space of other portions is reduced. be able to.
Therefore, it is easy to perform a design or the like that suppresses the creation of a space in which a vortex or the like is easily generated in the fan housing portion 31 of the fan case 40.

しかしながら、この場合も、ベース部２０と反対側に位置する開口の開口径が、ファンケース４０のファン収容部３１の外径よりも小さくなるため、一般的なベース部に側壁部を一体成形する方法では、型抜きの問題があるが、上記実施形態のように、ファン収容部３１の内壁面３１ａを平面展開するようにすれば、成形時の型抜きの問題を解消することができる。   However, in this case as well, since the opening diameter of the opening located on the side opposite to the base portion 20 is smaller than the outer diameter of the fan housing portion 31 of the fan case 40, the side wall portion is integrally formed on a general base portion. In the method, there is a problem of die cutting. However, if the inner wall surface 31a of the fan accommodating portion 31 is flattened as in the above embodiment, the problem of die cutting at the time of molding can be solved.

一方、図４を見るとわかるように、このような内壁面３１ａの形状の場合には設計にもよるが、第１展開壁３２ａと第２展開壁３２ｂとの合わさる部分に一部隙間となる隙間部３４ができる場合がある。
つまり、ファン収容部３１自体は第１展開壁３２ａ及び第２展開壁３２ｂによって規定されているが、第１展開壁３２ａ及び第２展開壁３２ｂだけでは、ファン収容部３１の内壁面３１ａの全てを構成できていない。 On the other hand, as can be seen from FIG. 4, in the case of such a shape of the inner wall surface 31a, depending on the design, a part of the first developing wall 32a and the second developing wall 32b is partially spaced. A gap 34 may be formed.
That is, the fan accommodating portion 31 itself is defined by the first developing wall 32a and the second developing wall 32b, but all of the inner wall surface 31a of the fan accommodating portion 31 is formed only by the first developing wall 32a and the second developing wall 32b. Is not configured.

そうすると、ファンの空気をガイドする側壁部に隙間が形成されてしまうことになるが、第１外壁用展開壁３２ｃ（図示せず）及び第２外壁用展開壁３２ｄが設けられていると、第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄが、この隙間部３４を塞いでくれることになるので、隙間のない側壁部３０とすることが可能である。
したがって、このような隙間部３４ができるような場合には、２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）を設けるようにすることが望ましい。 Then, a gap is formed in the side wall portion that guides the air of the fan. However, if the first outer wall developing wall 32c (not shown) and the second outer wall developing wall 32d are provided, Since the first outer wall developing wall 32c and the second outer wall developing wall 32d block the gap portion 34, the side wall portion 30 having no gap can be formed.
Therefore, when such a gap 34 can be formed, it is desirable to provide two outer wall developing walls (first outer wall developing wall 32c and second outer wall developing wall 32d).

（第２実施形態）
図５は、本発明に係る第２実施形態のファンケース部材１０を示す斜視図である。
第１実施形態では、図１及び図２に示すように、第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄは、ベース部２０の側辺に折り曲げ可能に繋がっていた。 (Second Embodiment)
FIG. 5 is a perspective view showing the fan case member 10 of the second embodiment according to the present invention.
In the first embodiment, as shown in FIGS. 1 and 2, the first outer wall developing wall 32 c and the second outer wall developing wall 32 d are connected to the side of the base portion 20 so as to be bendable.

具体的には、２つの外壁用展開壁３２ｃ、３２ｄのうちの一方（例えば、第１外壁用展開壁３２ｃ）が一方の複合側面３３（図１に点線で示す複合側面３３）である第１複合側面に設けられるように、一方の複合側面３３である第１複合側面側に折り曲げ可能に第１複合側面側の第１展開壁３２ａ及び第２展開壁３２ｂが繋がっていないベース部２０の側辺に繋がっており、一方、外壁用展開壁３２ｃ、３２ｄのうちの残る他方（第２外壁用展開壁３２ｄ）が残る他方の複合側面３３である第２複合側面に設けられるように、他方の複合側面３３である第２複合側面側に折り曲げ可能に第２複合側面側の第１展開壁３２ａ及び第２展開壁３２ｂが繋がっていないベース部２０の側辺に繋がっている態様になっていた。   Specifically, one of the two outer wall developing walls 32c and 32d (for example, the first outer wall developing wall 32c) is a first composite side surface 33 (a composite side surface 33 indicated by a dotted line in FIG. 1). The side of the base 20 that is not connected to the first development wall 32a and the second development wall 32b on the first composite side surface side so as to be foldable to the first composite side surface side that is one composite side surface 33 as provided on the composite side surface. The other of the outer wall developing walls 32c and 32d (the second outer wall developing wall 32d) is provided on the second composite side surface 33, which is the other composite side surface 33. The first development wall 32a and the second development wall 32b on the second composite side surface are connected to the side of the base portion 20 that is not connected to the second composite side surface, which is the composite side surface 33, so that it can be bent. .

しかしながら、第２実施形態では、２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）の設け方をベース部２０の側辺に繋げるようにするのではなく、第１展開壁３２ａ及び第２展開壁３２ｂに繋げるようにしている。   However, in the second embodiment, the method of providing the two outer wall developing walls (the first outer wall developing wall 32c and the second outer wall developing wall 32d) is not connected to the side of the base portion 20, It connects with the 1st expansion wall 32a and the 2nd expansion wall 32b.

つまり、第２実施形態では、図５に示すように、２つの外壁用展開壁のうちの一方（例えば、第１外壁用展開壁３２ｃ）が一方の複合側面３３（図１の点線で示す複合側面３３参照）である第１複合側面に設けられるように、一方の複合側面３３である第１複合側面側に折り曲げ可能に第１展開壁３２ａの一方の複合側面３３である第１複合側面を形成する外面３２ａａ（図２参照）の側辺に繋がっている。   That is, in the second embodiment, as shown in FIG. 5, one of the two outer wall developing walls (for example, the first outer wall developing wall 32 c) is one composite side surface 33 (composite indicated by the dotted line in FIG. 1). The first composite side surface that is one composite side surface 33 of the first developing wall 32a is foldable to the first composite side surface side that is one composite side surface 33 so as to be provided on the first composite side surface that is the side composite surface 33). It is connected to the side of the outer surface 32aa (see FIG. 2) to be formed.

また、２つの外壁用展開壁のうちの残る他方（第２外壁用展開壁３２ｄ）が残る他方の複合側面３３である第２複合側面に設けられるように、他方の複合側面３３である第２複合側面側に折り曲げ可能に第２展開壁３３ｂの他方の複合側面３３である第２複合側面を形成する外面３２ｂｂ（図２参照）の側辺に繋がっている。   Further, the second of the two composite side surfaces 33 is provided so that the other of the two outer wall development walls (the second outer wall development wall 32d) remains on the second composite side surface of the other composite side surface 33. It is connected to the side of the outer surface 32bb (see FIG. 2) forming the second composite side surface which is the other composite side surface 33 of the second development wall 33b so that it can be bent to the composite side surface side.

なお、図５に示すように、第１外壁用展開壁３２ｃと第１展開壁３２ａ及び第２外壁用展開壁３２ｄと第２展開壁３２ｂの繋がり部分においても、第１展開壁３２ａに対して第１外壁用展開壁３２ｃが直角に折り曲げられるように、第１展開壁３２ａとの繋がり部分の境界線を基準に、第１外壁用展開壁３２ｃと第１展開壁３２ａの側部には４５°の傾斜が形成され、第２展開壁３２ｂに対して第２外壁用展開壁３２ｄが直角に折り曲げられるように、第２展開壁３２ｂとの繋がり部分の境界線を基準に、第２外壁用展開壁３２ｄと第２展開壁３２ｂの側部には４５°の傾斜が形成されている。   In addition, as shown in FIG. 5, the first outer wall developing wall 32c and the first developing wall 32a and the second outer wall developing wall 32d and the second developing wall 32b are also connected to the first developing wall 32a. The side walls of the first outer wall developing wall 32c and the first developing wall 32a are 45 on the basis of the boundary line of the connecting portion with the first developing wall 32a so that the first outer wall developing wall 32c is bent at a right angle. A second outer wall is formed on the basis of the boundary line of the connecting portion with the second developing wall 32b so that the second outer wall developing wall 32d is bent at a right angle with respect to the second developing wall 32b. A slope of 45 ° is formed on the sides of the development wall 32d and the second development wall 32b.

このように、第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄを第１展開壁３２ａ及び第２展開壁３２ｂに対してそれぞれ折り曲げ可能に繋げた構成としても、観音開き状になっている第１展開壁３２ａ及び第２展開壁３２ｂを閉じるようにした後に、第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄを、それぞれが対応する複合側面３３（第１複合側面及び第２複合側面）側に折り曲げすようにすることで、第１実施形態と同様のファンケース４０を作製することが可能である。
しかも、第２実施形態のファンケース部材１０でも、部品点数を増やすことなく一体成形品として作製することが可能である。 As described above, even if the first outer wall developing wall 32c and the second outer wall developing wall 32d are connected to the first developing wall 32a and the second developing wall 32b so as to be bendable, they have a double-spread shape. After the first developing wall 32a and the second developing wall 32b are closed, the first outer wall developing wall 32c and the second outer wall developing wall 32d are respectively combined with the corresponding composite side surfaces 33 (first composite side surface and second composite wall 33). The fan case 40 similar to that of the first embodiment can be produced by bending the composite side).
Moreover, the fan case member 10 of the second embodiment can be manufactured as an integrally molded product without increasing the number of parts.

（第３実施形態）
図６は、本発明に係る第３実施形態のファンケース部材１０を示す斜視図である。
図６に示すように、第３実施形態のファンケース部材１０も展開側壁部３２が、ファン収容部３１を規定する第１展開壁３２ａと、ファン収容部３１を規定するファンケース４０の状態において第１展開壁３２ａに対向配置される第２展開壁３２ｂと、を備えている。 (Third embodiment)
FIG. 6 is a perspective view showing the fan case member 10 of the third embodiment according to the present invention.
As shown in FIG. 6, the fan case member 10 of the third embodiment also has a development side wall portion 32 in a state of a first development wall 32 a that defines the fan housing portion 31 and a fan case 40 that defines the fan housing portion 31. And a second development wall 32b disposed to face the first development wall 32a.

また、展開側壁部３２は、ファンケース４０の状態となって、第１展開壁３２ａと第２展開壁３２ｂが合わさったときに第１展開壁３２ａの外面３２ａａ及び第２展開壁３２ｂの外面３２ｂｂで構成される一方の複合側面３３（図１の点線で示す側の複合側面３３参照）である第１複合側面の外壁となる第１外壁用展開壁３２ｃと、他方の複合側面３３（図１の点線で示す側と反対側の複合側面３３参照）である第２複合側面の外壁となる第２外壁用展開壁３２ｄと、を備えている。   The development side wall 32 is in the state of the fan case 40, and when the first development wall 32a and the second development wall 32b are combined, the outer surface 32aa of the first development wall 32a and the outer surface 32bb of the second development wall 32b. 1 is a first composite side wall 33c (see the composite side surface 33 on the side indicated by the dotted line in FIG. 1), and the other composite side surface 33 (FIG. 1). And a second outer wall developing wall 32d which is an outer wall of the second composite side surface (see the composite side surface 33 opposite to the side indicated by the dotted line).

このように、展開側壁部３２が、第１展開壁３２ａ、第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）からなる４つの展開壁で構成される点は、第１実施形態や第２実施形態と同様である。   As described above, the development side wall 32 includes four developments including the first development wall 32a, the second development wall 32b, and the two outer wall development walls (the first outer wall development wall 32c and the second outer wall development wall 32d). The point comprised with a wall is the same as that of 1st Embodiment or 2nd Embodiment.

一方、第３実施形態では、展開側壁部３２は、第１展開壁３２ａ、前記第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）が全てファン収容部３１側となる面が正面視（Ａ矢視）側を向くように配置された状態で、第１展開壁３２ａ及び第２展開壁３２ｂの間に第１外壁用展開壁３２ｃが位置し、第１外壁用展開壁３２ｃが第１展開壁３２ａ及び第２展開壁３２ｂに対して折り曲げ可能に繋がっているとともに、第２外壁用展開壁３２ｄが第１外壁用展開壁３２ｃを基準に第２展開壁３２ｂの外側に位置して隣接する第２展開壁３２ｂに対して折り曲げ可能に繋がるようにされており、第１展開壁３２ａ、前記第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）が一連で繋がるように構成されている点が異なる。   On the other hand, in the third embodiment, the development side wall 32 includes the first development wall 32a, the second development wall 32b, and two outer wall development walls (first outer wall development wall 32c and second outer wall development wall 32d). Are arranged such that the surface on the side of the fan accommodating portion 31 faces the front view (A arrow) side, and the first outer wall developing wall 32c is interposed between the first developing wall 32a and the second developing wall 32b. Is located, the first outer wall developing wall 32c is connected to the first developing wall 32a and the second developing wall 32b so as to be bendable, and the second outer wall developing wall 32d is connected to the first outer wall developing wall 32c. It is located outside the second development wall 32b as a reference and is connected to the adjacent second development wall 32b so that it can be bent. For the first development wall 32a, the second development wall 32b, and the two outer walls Deployment wall (first deployment wall 32c and second exterior wall That expanded wall 32d) are configured so as to be connected in series are different.

なお、本実施形態では、第２外壁用展開壁３２ｄが第２展開壁３２ｂに対して折り曲げ可能に繋がるようにされている。
しかしながら、第２外壁用展開壁３２ｄが第１外壁用展開壁３２ｃを基準に第１展開壁３２ａの外側に位置するようにして、この隣接する第１展開壁３２ａに対して折り曲げ可能に繋がるようにされても良い。 In the present embodiment, the second outer wall developing wall 32d is connected to the second developing wall 32b so that it can be bent.
However, the second outer wall developing wall 32d is positioned outside the first developing wall 32a with respect to the first outer wall developing wall 32c so that the second outer wall developing wall 32d can be bent with respect to the adjacent first developing wall 32a. May be.

そして、このように一連に第１展開壁３２ａ、前記第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）が繋がった展開側壁部３２が、正面視（Ａ矢視）で、ベース部２０に対して平面展開された状態で、第１展開壁３２ａがベース部２０の側辺に折り曲げ可能に繋がっている。   In this way, the development side wall portion 32 in which the first development wall 32a, the second development wall 32b, and the two outer wall development walls (the first outer wall development wall 32c and the second outer wall development wall 32d) are connected in series. However, the first development wall 32a is connected to the side of the base part 20 so as to be bendable in a state of being flatly developed with respect to the base part 20 in a front view (A arrow view).

なお、本実施形態では、第１展開壁３２ａをベース部２０の側辺に繋げるようにしているが、これに限定される必要はなく、第１展開壁３２ａ、第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）のうちのいずれか１つがベース部２０の側辺に折り曲げ可能に繋がっていればよい。   In the present embodiment, the first developing wall 32a is connected to the side of the base portion 20, but the present invention is not limited to this, and the first developing wall 32a, the second developing wall 32b, and the two Any one of the outer wall developing walls (the first outer wall developing wall 32c and the second outer wall developing wall 32d) may be connected to the side of the base portion 20 so as to be bendable.

また、本実施形態でも、第１展開壁３２ａ、第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）のそれぞれの繋がり部分には、繋がり部分の境界線を基準に４５°の傾斜が形成され、９０°の折り曲げができるようになっている。
なお、第１展開壁３２ａとベース部２０との繋がり部分にも、９０°の折り曲げができるように、繋がり部分の境界線を基準に４５°の傾斜が形成されている。 Also in the present embodiment, each of the connecting portions of the first developing wall 32a, the second developing wall 32b, and the two outer wall developing walls (the first outer wall developing wall 32c and the second outer wall developing wall 32d) includes: An inclination of 45 ° is formed with reference to the boundary line of the connecting portion, and 90 ° bending can be performed.
Note that the connection portion between the first development wall 32a and the base portion 20 is also formed with a 45 ° inclination with respect to the boundary line of the connection portion so that it can be bent by 90 °.

このように構成された第３実施形態のファンケース部材１０も、第１展開壁３２ａ、第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）が一連に繋がった展開側壁部３２を、ベース部２０に対して直交するように、第１展開壁３２ａとベース部２０との繋がり部分で折り曲げるようにした後に、第２展開壁３２ｂ及び２つの外壁用展開壁（第１外壁用展開壁３２ｃ及び第２外壁用展開壁３２ｄ）がベース部２０の周囲を取り囲むように、第１外壁用展開壁３２ｃ、第２展開壁３２ｂ及び第２外壁用展開壁３２ｄを順次折り曲げるようにすると、第１実施形態や第２実施形態と同様のファンケース４０を作製することが可能である。
また、第３実施形態のファンケース部材１０でも、部品点数を増やすことなく一体成形品として作製することが可能になっている。 The fan case member 10 of the third embodiment configured as described above also includes the first developing wall 32a, the second developing wall 32b, and two outer wall developing walls (the first outer wall developing wall 32c and the second outer wall developing wall. After the development side wall portion 32 connected in series 32d) is bent at the connection portion between the first development wall 32a and the base portion 20 so as to be orthogonal to the base portion 20, the second development wall 32b and The first outer wall developing wall 32c, the second developing wall 32b, and the second outer wall developing wall (the first outer wall developing wall 32c and the second outer wall developing wall 32d) surround the base portion 20. If the outer wall developing wall 32d is sequentially bent, the fan case 40 similar to the first embodiment or the second embodiment can be produced.
Also, the fan case member 10 of the third embodiment can be manufactured as an integrally molded product without increasing the number of parts.

（第４実施形態）
図７は、本発明の第４実施形態のファンケース部材１０の斜視図である。
これまでの実施形態では、側壁部３０の全体が展開側壁部３２としてベース部２０に対して平面展開されるようになっていた。 (Fourth embodiment)
FIG. 7 is a perspective view of the fan case member 10 according to the fourth embodiment of the present invention.
In the embodiments described so far, the entire side wall portion 30 is flatly developed as the development side wall portion 32 with respect to the base portion 20.

しかしながら、第４実施形態では、側壁部３０の少なくとも一部が、ベース部２０を側壁部３０が位置する側から見る正面視（Ａ矢視）で平面展開するように、平面展開可能な展開側壁部３２とされており、ベース部２０に対して平面展開されるようになっていない点がこれまでと異なる。   However, in the fourth embodiment, at least a part of the side wall part 30 can be developed in a planar manner so that at least a part of the side wall part 30 is developed in a plan view as viewed from the side where the side wall part 30 is located (A arrow view). It differs from the past in that it is a portion 32 and is not flat-deployed with respect to the base portion 20.

第４実施形態では、図７に示すように、側壁部３０は、ベース部２０から離れる高さ方向の所定の位置までベース部２０に一体に形成された固定壁部３６と、固定壁部３６に繋がり、正面視（Ａ矢視）で、平面展開するように固定壁部３６に対して折り曲げ可能である展開側壁部３２と、を備えるように構成されている。   In the fourth embodiment, as shown in FIG. 7, the side wall portion 30 includes a fixed wall portion 36 integrally formed with the base portion 20 to a predetermined position in the height direction away from the base portion 20, and the fixed wall portion 36. And a development side wall part 32 that can be bent with respect to the fixed wall part 36 so as to be developed in a plan view when viewed from the front (A arrow view).

具体的には、展開側壁部３２は、固定壁部３６に対して観音開き状に平面展開するように、固定壁部３６の対向する上辺に折り曲げ可能に繋がる第１展開壁３２ａと、第１展開壁３２ａに対向する第２展開壁３２ｂと、からなり、ファン収容部３１の内壁面３１ａの少なくとも一部が２つに平面展開されるようになっている。
そして、図示しないファンケース４０の状態になったときのベース部２０と反対側に位置する開口が小さくなるように、第１展開壁３２ａ及び第２展開壁３２ｂには、それぞれ開口側の一部が内側に出っ張る開口縁部３７ａ及び３７ｂが形成されている。 Specifically, the development side wall 32 has a first development wall 32a that is foldably connected to the opposing upper side of the fixed wall 36 so as to be flattened in a double-spread shape with respect to the fixed wall 36, and a first development. And a second development wall 32b facing the wall 32a, and at least a part of the inner wall surface 31a of the fan accommodating portion 31 is two-dimensionally developed in two.
The first developing wall 32a and the second developing wall 32b are part of the opening side so that the opening located on the side opposite to the base portion 20 when the fan case 40 (not shown) is brought into a state becomes small. Opening edge portions 37a and 37b projecting inward are formed.

したがって、本実施形態のようなファンケース４０の場合も、ファンケース４０の状態において、ファン収容部３１内の方が開口より大きくなるので、一般的なベース部に側壁部を一体成形する方法では、型抜きの問題がある。   Therefore, even in the case of the fan case 40 as in the present embodiment, in the state of the fan case 40, the inside of the fan accommodating portion 31 is larger than the opening. Therefore, in the method of integrally forming the side wall portion on the general base portion, There is a problem of die cutting.

しかしながら、本実施形態のように、型抜きが問題となる側壁部３０の一部を、固定壁部３６に対して観音開き状に平面展開するように、固定壁部３６の対向する上辺に折り曲げ可能に繋がる第１展開壁３２ａと、第１展開壁３２ａに対向する第２展開壁３２ｂと、からなる展開側壁部３２とすれば、部品点数を増やすことなく一体成形品のファンケース部材１０として実現することが可能である。   However, as in the present embodiment, a part of the side wall part 30 where die cutting is a problem can be folded to the opposite upper side of the fixed wall part 36 so as to be flattened in a double-spread shape with respect to the fixed wall part 36. If the development side wall part 32 which consists of the 1st expansion | deployment wall 32a connected to 1st and the 2nd expansion | deployment wall 32b which opposes the 1st expansion | deployment wall 32a is realized as the fan case member 10 of an integrally molded product, without increasing a number of parts. Is possible.

なお、図４に示したファン収容部３１の内壁面３１ａが内壁面３１ａの中間位置からベース部２０側及びベース部２０と反対側の開口側に向かって緩やかな曲面を描きながら、ファン収容部３１の内側に傾斜（ラウンド）するようになっている場合に、第４実施形態のような側壁部３０の少なくとも一部が平面展開可能な展開側壁部３２とされている構成のファンケース部材１０としても良い。   In addition, while the inner wall surface 31a of the fan housing portion 31 shown in FIG. 4 draws a gentle curved surface from the intermediate position of the inner wall surface 31a toward the base portion 20 side and the opening side opposite to the base portion 20, The fan case member 10 having a configuration in which at least a part of the side wall portion 30 is configured as a development side wall portion 32 that can be flattened when the side wall 30 is inclined (rounded) inside. It is also good.

具体的には、ベース部２０からファン収容部３１内の空間の外径が最も大きくなるファン収容部３１の中間部までを高さ方向の所定の位置としてベース部２０に一体に形成される固定壁部３６とし、それよりもベース部２０から離れる側を固定壁部３６に対して折り曲げ可能である展開側壁部３２とすれば良い。   Specifically, the fixing is integrally formed on the base portion 20 with a predetermined position in the height direction from the base portion 20 to the middle portion of the fan housing portion 31 where the outer diameter of the space in the fan housing portion 31 is the largest. What is necessary is just to set it as the wall part 36, and let the side far from the base part 20 be the expansion | deployment side wall part 32 which can be bent with respect to the fixed wall part 36.

ところで、第４実施形態の図７に示したファンケース部材１０を用いたファンケース４０（図示せず）は、ファン収容部３１の空間の外径が基本的にほぼ一定であり、開口縁部３７ａ及び３７ｂの部分だけが内側に出っ張っているようになっている。
したがって、一体成形するときに型抜きが問題となるのは、この開口縁部３７ａ及び３７ｂの部分だけである。 By the way, in the fan case 40 (not shown) using the fan case member 10 shown in FIG. 7 of the fourth embodiment, the outer diameter of the space of the fan accommodating portion 31 is basically substantially constant, and the opening edge portion. Only the portions 37a and 37b protrude inward.
Therefore, it is only the portions of the opening edge portions 37a and 37b that die cutting becomes a problem when integrally molding.

このため、第４実施形態のファンケース４０（図示せず）のような形状のファンケース４０の場合、図８に示す第１変形例のファンケース部材１０ように、内側に出っ張っている開口縁部３７ａ及び３７ｂの部分だけを、それぞれ第１展開壁３２ａ及び第２展開壁３２ｂとして、その開口縁部３７ａ及び３７ｂよりもベース部２０側を固定壁部３６とするように構成しても良い。   For this reason, in the case of the fan case 40 shaped like the fan case 40 (not shown) of the fourth embodiment, the opening edge protruding inward as in the fan case member 10 of the first modification shown in FIG. Only the portions 37a and 37b may be configured as a first developing wall 32a and a second developing wall 32b, respectively, so that the base wall 20 side of the opening edge portions 37a and 37b is the fixed wall portion 36. .

さらに、第４実施形態のような形状のファンケース４０（図示せず）の場合には、図８に示す第１変形例のファンケース部材１０ように、第１展開壁３２ａ及び第２展開壁３２ｂの２つの展開壁の構成に限定される必要もない。   Further, in the case of the fan case 40 (not shown) shaped as in the fourth embodiment, the first developing wall 32a and the second developing wall are similar to the fan case member 10 of the first modification shown in FIG. It is not necessary to be limited to the configuration of the two deployment walls 32b.

図９は、第４実施形態の更なる変形例である第２変形例のファンケース部材１０を示す図である。
第２変形例のファンケース部材１０は、図９に示すように、展開側壁部３２が、固定壁部３６に対して平面展開するようにした１つの展開壁３２ｅだけを備えている。 FIG. 9 is a diagram illustrating a fan case member 10 of a second modification that is a further modification of the fourth embodiment.
As shown in FIG. 9, the fan case member 10 of the second modification includes only one developing wall 32 e in which the developing side wall 32 is developed in a plane with respect to the fixed wall 36.

そして、第２変形例のファンケース部材１０の展開壁３２ｅは、図８のファンケース部材１０における第１展開壁３２ａ及び第２展開壁３２ｂを一体にした形状のもの、つまり、展開壁３２ｅが、図示しないファンケース４０の状態になったときのベース部２０と反対側に位置する開口が小さくなるように、内側に出っ張る開口縁部３７ｃを有する側壁部３０だけからなるものとされている。   The development wall 32e of the fan case member 10 of the second modification has a shape in which the first development wall 32a and the second development wall 32b in the fan case member 10 of FIG. The side wall portion 30 has an opening edge portion 37c projecting inward so that the opening located on the side opposite to the base portion 20 when the fan case 40 is not shown is small.

このようにしても成形時の型抜きの問題は解消されるとともに、ファンケース部材１０を部品点数の増えることなく一体成形品とすることができる。   Even if it does in this way, while the problem of the die cutting at the time of shaping | molding is eliminated, the fan case member 10 can be made into an integrally molded product, without the number of parts increasing.

さらに、第４実施形態のような形状のファンケース４０（図示せず）の場合には、図１０に示す第３変形例のファンケース部材１０のように構成しても良い。   Furthermore, in the case of the fan case 40 (not shown) shaped as in the fourth embodiment, it may be configured like the fan case member 10 of the third modified example shown in FIG.

第３変形例のファンケース部材１０は、展開側壁部３２が、固定壁部３６に対して展開するようにされた１つの展開壁３２ｆだけを備え、１つの展開壁だけを備える点については、上述の第２変形例と同じであるが、その展開壁３２ｆが、図示しないファンケース４０の状態になったときのベース部２０と反対側に位置する開口が小さくなるように、内側に出っ張る開口縁部３７ｃを有する開口縁部３７ｃに沿った開口縁部３７ｃ近傍の側壁部３０の一部だけからなる点が異なる。   The fan case member 10 of the third modified example includes the development side wall portion 32 having only one development wall 32f adapted to be developed with respect to the fixed wall portion 36, and having only one development wall. Although the same as the above-mentioned 2nd modification, the opening which protrudes inside so that the opening located in the side opposite to the base part 20 when the expansion | deployment wall 32f will be in the state of the fan case 40 which is not shown in figure becomes small. The difference lies in that only a part of the side wall 30 in the vicinity of the opening edge 37c along the opening edge 37c having the edge 37c is formed.

この場合、図１０に示すように、展開壁３２ｆを固定壁部３６側に折り曲げて固定壁部３６に展開壁３２ｆを合わせることができるように、固定壁部３６の上面には、展開壁３２ｆと相補形状を成す溝３６ｃを設けておく。
このようにしても成形時の型抜きの問題は解消されるとともに、ファンケース部材１０を部品点数の増えることなく一体成形品とすることができる。 In this case, as shown in FIG. 10, the development wall 32f is placed on the upper surface of the fixed wall 36 so that the development wall 32f can be bent toward the fixed wall 36 so that the development wall 32f can be aligned with the fixed wall 36. And a groove 36c having a complementary shape.
Even if it does in this way, while the problem of the die cutting at the time of shaping | molding is eliminated, the fan case member 10 can be made into an integrally molded product, without the number of parts increasing.

以上、本発明を実施形態に基づき説明したが、本発明は実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々変更が可能である。
例えば、上記実施形態では、スポーク２２が４本である場合を示しているが、スポーク２２の数は、特に限定されるものではなく、３本でも良く、５本以上でもよい。
また、スポーク２２の部分をスポークに代えて静翼で構成するようにしても良い。
さらに、例えば、ベース部２０の４つの側辺のそれぞれに対応するように側壁部を分割し、ベース部２０の４つの側辺のそれぞれにベース部２０に対して折り曲げ可能に繋がったファン収容部を規定する４つの展開壁を備えるファンケース部材としても良い。 As mentioned above, although this invention was demonstrated based on embodiment, this invention is not limited to embodiment, A various change is possible in the range which does not deviate from the summary.
For example, although the case where the number of the spokes 22 is four is shown in the above embodiment, the number of the spokes 22 is not particularly limited, and may be three or may be five or more.
Further, the portion of the spoke 22 may be constituted by a stationary blade instead of the spoke.
Furthermore, for example, the side wall portion is divided so as to correspond to each of the four side sides of the base portion 20, and the fan accommodating portion connected to each of the four side sides of the base portion 20 so as to be foldable with respect to the base portion 20. It is good also as a fan case member provided with four deployment walls which prescribe | regulate.

このように、本発明は、具体的な実施形態に限定されるものではなく、種々の変更を行ったものも含まれるものであり、そのことは、当業者にとって特許請求の範囲の記載から明らかである。   As described above, the present invention is not limited to the specific embodiments but includes various modifications, which will be apparent to those skilled in the art from the description of the scope of claims. It is.

１０…ファンケース部材、２０…ベース部、３０…側壁部、３１…ファン収容部、３１ａ…内壁面、３２…展開側壁部、３２ａ…第１展開壁、３２ｂ…第２展開壁、３２ｃ…第１外壁用展開壁（外壁用展開壁）、３２ｄ…第２外壁用展開壁（外壁用展開壁）、３２ｅ，３２ｆ…展開壁、３３…複合側面、４０…ファンケース DESCRIPTION OF SYMBOLS 10 ... Fan case member, 20 ... Base part, 30 ... Side wall part, 31 ... Fan accommodating part, 31a ... Inner wall surface, 32 ... Deployment side wall part, 32a ... 1st deployment wall, 32b ... 2nd deployment wall, 32c ... 1st 1 outer wall developing wall (outer wall developing wall), 32d ... second outer wall developing wall (outer wall developing wall), 32e, 32f ... developing wall, 33 ... composite side surface, 40 ... fan case

Claims (4)

ベース部と、
ファンケースの状態で前記ベース部上に位置するファン収容部を構成する側壁部と、を備え、
前記側壁部の少なくとも一部は、前記ベース部を前記側壁部が位置する側から見る正面視で、平面展開可能な展開側壁部とされ、
前記展開側壁部は、前記ファン収容部を規定する第１展開壁及び第２展開壁と、を備え、
前記第１展開壁及び前記第２展開壁が、前記ベース部に対して観音開き状に平面展開するように、前記ベース部の対向する側辺に折り曲げ可能に繋がっており、
さらに、前記展開側壁部は、
前記第１展開壁と前記第２展開壁を閉じたときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される一方の複合側面である第１複合側面に設けられ、前記第１複合側面の外壁となる第１外壁用展開壁と、
前記第１展開壁と前記第２展開壁を閉じたときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される他方の複合側面である第２複合側面に設けられ、前記第２複合側面の外壁となる第２外壁用展開壁と、を備え、
前記第１外壁用展開壁が、前記第１複合側面に設けられるように、前記第１複合側面側に折り曲げ可能に、前記第１展開壁、若しくは、前記第１複合側面側の前記第１展開壁及び前記第２展開壁が繋がっていない前記ベース部の側辺のいずれかに繋がっており、
前記第２外壁用展開壁が、前記第２複合側面に設けられるように、前記第２複合側面側に折り曲げ可能に、前記第２展開壁、若しくは、前記第２複合側面側の前記第１展開壁及び前記第２展開壁が繋がっていない前記ベース部の側辺のいずれかに繋がっていることを特徴とするファンケース部材。 A base part;
A side wall portion constituting a fan accommodating portion located on the base portion in the state of the fan case,
At least a part of the side wall part is a development side wall part that can be developed in a plane in a front view when the base part is viewed from the side where the side wall part is located ,
The deployment side wall includes a first deployment wall and a second deployment wall that define the fan housing portion,
The first development wall and the second development wall are foldably connected to opposite sides of the base portion so as to be flattened in a double-spread shape with respect to the base portion,
Furthermore, the deployment side wall portion is
Provided on the first composite side surface which is one composite side surface constituted by the outer surface of the first development wall and the outer surface of the second development wall when the first development wall and the second development wall are closed; A developing wall for a first outer wall that is an outer wall of the first composite side surface;
Provided on the second composite side which is the other composite side composed of the outer surface of the first development wall and the outer surface of the second development wall when the first development wall and the second development wall are closed, A deployment wall for a second outer wall that is an outer wall of the second composite side surface,
The first deployment wall or the first deployment on the first composite side surface side is foldable to the first composite side surface side so that the first outer wall development wall is provided on the first composite side surface. A wall and the second development wall are connected to any one of the sides of the base part, and
The second development wall or the first development on the second composite side surface side is foldable on the second composite side surface side so that the second outer wall development wall is provided on the second composite side surface. A fan case member, wherein the fan case member is connected to one of the sides of the base portion where the wall and the second development wall are not connected . ベース部と、
ファンケースの状態で前記ベース部上に位置するファン収容部を構成する側壁部と、を備え、
前記側壁部の少なくとも一部は、前記ベース部を前記側壁部が位置する側から見る正面視で、平面展開可能な展開側壁部とされ、
前記展開側壁部は、
前記ファン収容部を規定する第１展開壁と、
前記ファン収容部を規定する前記第１展開壁に対向配置される第２展開壁と、
前記第１展開壁と前記第２展開壁が合わさったときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される一方の複合側面である第１複合側面に設けられ、前記第１複合側面の外壁となる第１外壁用展開壁と、
前記第１展開壁と前記第２展開壁が合わさったときに前記第１展開壁の外面及び前記第２展開壁の外面で構成される他方の複合側面である第２複合側面に設けられ、前記第２複合側面の外壁となる第２外壁用展開壁と、を備え、
前記展開側壁部は、前記第１外壁用展開壁が前記第１展開壁及び前記第２展開壁に対して折り曲げ可能に前記第１展開壁及び第２展開壁に繋がっているとともに、前記第２外壁用展開壁が、前記第１外壁用展開壁を基準に前記第１展開壁若しくは前記第２展開壁の外側に位置して隣接する、前記第１展開壁若しくは前記第２展開壁に対して折り曲げ可能に繋がった状態になっており、
前記展開側壁部が、前記正面視で、前記ベース部に対して平面展開された状態で、前記第１展開壁、前記第２展開壁、前記第１前記外壁用展開壁又は前記第２前記外壁用展開壁のうちのいずれか１つが前記ベース部の側辺に折り曲げ可能に繋がっていることを特徴とするファンケース部材。 A base part;
A side wall portion constituting a fan accommodating portion located on the base portion in the state of the fan case,
At least a part of the side wall part is a development side wall part that can be developed in a plane in a front view when the base part is viewed from the side where the side wall part is located,
The deployment side wall
A first deployment wall that defines the fan housing;
A second deployment wall disposed opposite the first deployment wall that defines the fan housing portion;
Provided on the first composite side surface which is one composite side surface constituted by the outer surface of the first development wall and the outer surface of the second development wall when the first development wall and the second development wall are combined, A developing wall for a first outer wall that is an outer wall of the first composite side surface;
Provided on the second composite side which is the other composite side composed of the outer surface of the first development wall and the outer surface of the second development wall when the first development wall and the second development wall are combined, A deployment wall for a second outer wall that is an outer wall of the second composite side surface,
The development side wall part is connected to the first development wall and the second development wall so that the first outer wall development wall can be bent with respect to the first development wall and the second development wall, and an outer wall for deployment walls, adjacent positioned outside of said first outer wall for deployment walls reference first expansion wall or the second expansion wall, to the first expansion wall or the second expansion wall It is in a state that is connected to bendable,
In a state where the development side wall part is planarly developed with respect to the base part in the front view, the first development wall, the second development wall, the first outer wall development wall, or the second outer wall. off Ankesu member any one of the use expansion wall, characterized in that connected to foldably sides of the base portion. 前記ファン収容部が、前記ファンケースの状態で前記ベース部と反対側に位置する開口に向かってベース部側から前記ファン収容部の空間の外径が小さくなる、若しくは、中間位置から前記ベース部及び前記開口に向かって前記ファン収容部の空間の外径が小さくなるようになっていることを特徴とする請求項１又は請求項２に記載のファンケース部材。 The outer diameter of the space of the fan housing portion decreases from the base portion side toward the opening located on the side opposite to the base portion in the state of the fan case, or the base portion from an intermediate position. 3. The fan case member according to claim 1, wherein an outer diameter of the space of the fan housing portion decreases toward the opening. 請求項１から請求項３のいずれか１項に記載のファンケース部材及びファン部を備えるファンの製造方法であって、
前記ファンケース部材の展開側壁部を平面展開した状態で前記ベース部に前記ファン部を設ける工程と、
前記ベース部に前記ファン部を設けた状態で、前記展開側壁部が側壁部となるようにして前記ファンケース部材を前記ファンケースの状態にする工程と、を含むことを特徴とするファンの製造方法。
It is a manufacturing method of the fan provided with the fan case member and fan part according to any one of claims 1 to 3 ,
Providing the fan part on the base part in a state where the development side wall part of the fan case member is planarly developed; and
And a step of bringing the fan case member into the state of the fan case so that the development side wall portion becomes a side wall portion in a state where the fan portion is provided on the base portion. Method.
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