WO2020171027A1 - Drive shaft and filter cleaning unit using same - Google Patents
Drive shaft and filter cleaning unit using same Download PDFInfo
- Publication number
- WO2020171027A1 WO2020171027A1 PCT/JP2020/006136 JP2020006136W WO2020171027A1 WO 2020171027 A1 WO2020171027 A1 WO 2020171027A1 JP 2020006136 W JP2020006136 W JP 2020006136W WO 2020171027 A1 WO2020171027 A1 WO 2020171027A1
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- WIPO (PCT)
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- drive shaft
- filter
- gear
- shaft
- shaft portion
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/0328—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing with means for purifying supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
A drive shaft (14) of the present invention comprises: a first shaft part (17a) having a semicircular shape; a first drive shaft member (14a) including a first gear (18a) provided at one end of the first shaft (17a); a second shaft part (17b) having a semicircular shape; and a second drive shaft member (14b) including a second gear (18b) provided at one end of the shaft part. The first shaft part (17a) and the second shaft part (17b) have curved surface sections (17aa, 17ba) including semicircular arcs and flat surface sections (17ab, 17bb) having chords, respectively. The flat surface parts (17ab, 17bb) of the first drive shaft member (14a) and the second drive shaft member (14b) overlap each other to form a cylindrical shaft portion (17). Accordingly, the drive shaft (14) can be integrally molded by using a resin material, and thus be manufactured at low costs. Furthermore, twist between the first gear (18a) and the second gear (18b) can be reduced.
Description
本発明は、空気調和機などに用いられるフィルタの駆動軸およびそれを用いたフィルタ掃除ユニットに関する。
The present invention relates to a drive shaft of a filter used in an air conditioner and the like, and a filter cleaning unit using the drive shaft.
特許文献１は、モータなどの駆動源により回転するフィルタ駆動軸およびそれを用いたフィルタ掃除ユニットを開示する。特許文献１に開示のフィルタ掃除ユニットは、フィルタ駆動軸の回転により、フィルタをスライド移動させる。なお、フィルタは、一般に、空気調和機や空気清浄機などにおいて、吸引した空気から塵埃などを除去するために設けられる。
Patent Document 1 discloses a filter drive shaft that is rotated by a drive source such as a motor, and a filter cleaning unit using the filter drive shaft. The filter cleaning unit disclosed in Patent Document 1 slides a filter by rotating a filter drive shaft. Note that the filter is generally provided in an air conditioner, an air cleaner, or the like to remove dust and the like from the sucked air.
図９は、特許文献１に記載の従来の空気調和機のフィルタ１０１およびフィルタ駆動軸１０４を備えるカセットを示す分解斜視図である。
FIG. 9 is an exploded perspective view showing a cassette including the filter 101 and the filter drive shaft 104 of the conventional air conditioner described in Patent Document 1.
図９に示すように、特許文献１に記載のフィルタ掃除ユニットのカセットのフィルタ１０１は、上下方向からフィルタ保持枠１０２およびフィルタ保持枠１０３で挟み込まれ、保持される。フィルタ保持枠１０２、１０３は、四角形の形状を有し、４辺のうちの１辺が開放される。
As shown in FIG. 9, the filter 101 of the cassette of the filter cleaning unit described in Patent Document 1 is sandwiched and held by the filter holding frame 102 and the filter holding frame 103 from the vertical direction. Each of the filter holding frames 102 and 103 has a rectangular shape, and one side of the four sides is open.
つまり、カセットは、空気の吸い込み方向から見たとき、四角形の形状を有する。フィルタ駆動軸１０４は、カセットの一辺に設けられる。フィルタ駆動軸１０４は、フィルタ駆動軸１０４の両側に樹脂製の歯車形状の歯車部１０６と、両側の歯車部１０６を接続する金属製の軸部１０５を有する。フィルタ１０１は、フィルタ１０１の裏面に設けられるラックを有する。そして、カセットは、フィルタ１０１のラックと、フィルタ駆動軸１０４の歯車部１０６の歯とが噛み合うように配置構成される。
That is, the cassette has a quadrangular shape when viewed from the air suction direction. The filter drive shaft 104 is provided on one side of the cassette. The filter drive shaft 104 has a resin gear-shaped gear portion 106 on both sides of the filter drive shaft 104, and a metal shaft portion 105 connecting the gear portions 106 on both sides. The filter 101 has a rack provided on the back surface of the filter 101. The cassette is arranged so that the rack of the filter 101 and the teeth of the gear portion 106 of the filter drive shaft 104 mesh with each other.
上記構成により、フィルタ駆動軸１０４が駆動されると、歯車部１０６が回転する。歯車部１０６の回転により、軸部１０５を介して、フィルタ駆動軸１０４の両側の歯車部１０６が連動して回転する。このとき、歯車部１０６の歯と、フィルタ１０１の裏面のラックとが噛み合うように配設されているため、フィルタ駆動軸１０４の回転とともに、フィルタ１０１が移動する。具体的には、フィルタ１０１は、フィルタ保持枠１０２、１０３の開放されている一辺の方向に向かって、スライド移動する。このとき、カセットは、スライド移動するフィルタ１０１と接触するように配設されるブラシなどを備える。そのため、スライド移動にともなって、ブラシとフィルタ１０１とが接触し、フィルタ１０１に付着した塵埃などが除去される。
With the above configuration, when the filter drive shaft 104 is driven, the gear unit 106 rotates. Due to the rotation of the gear portion 106, the gear portions 106 on both sides of the filter drive shaft 104 are interlocked and rotated via the shaft portion 105. At this time, since the teeth of the gear portion 106 and the rack on the back surface of the filter 101 are arranged so as to mesh with each other, the filter 101 moves as the filter drive shaft 104 rotates. Specifically, the filter 101 slides in the direction of the open side of the filter holding frames 102 and 103. At this time, the cassette is provided with a brush or the like arranged so as to come into contact with the slidingly moving filter 101. Therefore, as the slide moves, the brush and the filter 101 come into contact with each other, and dust and the like attached to the filter 101 are removed.
上記のように、従来の空気調和機のフィルタ掃除ユニットは、金属製の軸部１０５と、樹脂製の歯車部１０６を有するフィルタ駆動軸１０４を備える。軸部１０５の両端にある歯車部１０６は、互いに、軸部１０５を介して連結され、一端側の歯車部１０６の回転にともなって、他端側の歯車部１０６も回転するように構成される。
As described above, the filter cleaning unit of the conventional air conditioner includes the metal shaft portion 105 and the filter drive shaft 104 having the resin gear portion 106. The gear portions 106 at both ends of the shaft portion 105 are connected to each other through the shaft portion 105, and the gear portion 106 on the other end side also rotates as the gear portion 106 on the one end side rotates. ..
しかしながら、カセットのフィルタ保持枠１０２、１０３や歯車部１０６は、樹脂材料での成型が可能であるが、軸部１０５は、金属材料で成型する必要がある。つまり、金属製の部品と樹脂製の部品の２種類の部品を、予め用意する必要がある。一般的に、金属製の部品は、樹脂製の部品に比べて、高価である。また、軸部１０５の両端に、それぞれ歯車部１０６を接続する必要がある。さらに、歯車部１０６の装着時においては、軸部１０５の両端に設けられた歯車部１０６の歯の位置が、互いに揃うように軸部１０５に接続する必要がある。そのため、歯車部１０６と軸部１０５との接続時において、製造ステップが、さらに増加する。
However, the filter holding frames 102 and 103 and the gear portion 106 of the cassette can be molded with a resin material, but the shaft portion 105 needs to be molded with a metal material. That is, it is necessary to prepare in advance two types of parts, which are metal parts and resin parts. Generally, metal parts are more expensive than resin parts. Further, it is necessary to connect the gear portions 106 to both ends of the shaft portion 105. Further, when the gear portion 106 is mounted, it is necessary to connect the gear portion 106 provided on both ends of the shaft portion 105 to the shaft portion 105 so that the positions of the teeth of the gear portion 106 are aligned with each other. Therefore, when connecting the gear portion 106 and the shaft portion 105, the number of manufacturing steps is further increased.
以上のように、従来の空気調和機のフィルタ駆動軸１０４およびフィルタ掃除ユニットは、コスト面および製造面において、さらなる改善が要望される。
As described above, the filter drive shaft 104 and the filter cleaning unit of the conventional air conditioner are required to be further improved in terms of cost and manufacturing.
本発明は、低コストのフィルタの駆動軸とそれを用いたフィルタ掃除ユニットを提供する。
The present invention provides a low-cost filter drive shaft and a filter cleaning unit using the drive shaft.
本発明の駆動軸は、実質的に半円状の断面を有する第１軸部と、第１軸部の一端に設けられる第１歯車を含む第１駆動軸部材と、実質的に半円状の断面を有する第２軸部と、第２軸部の一端に設けられる第２歯車を含む第２駆動軸部材を備える。第１軸部および第２軸部は、実質的に半円状の断面の弧を含む曲面部と、実質的に半円状の断面の弦を含む平面部を有する。そして、駆動軸は、第１駆動軸部材の平面部と第２駆動軸部材の平面部とを、互いに重ね合わすことにより、実質的に円柱状で構成される軸部を有する。
The drive shaft of the present invention includes a first shaft portion having a substantially semicircular cross section, a first drive shaft member including a first gear provided at one end of the first shaft portion, and a substantially semicircular shape. And a second drive shaft member including a second gear provided at one end of the second shaft portion. The first shaft portion and the second shaft portion have a curved surface portion including an arc having a substantially semicircular cross section and a flat surface portion including a chord having a substantially semicircular cross section. The drive shaft has a shaft portion that is formed in a substantially cylindrical shape by overlapping the flat surface portion of the first drive shaft member and the flat surface portion of the second drive shaft member with each other.
上記構成によれば、金属製の部品を用いず、樹脂材料で、駆動軸を一体成型により形成できる。これにより、駆動軸を低コストで生産できるとともに、第１歯車と第２歯車とのねじれの発生を低減できる。
According to the above configuration, the drive shaft can be integrally formed with a resin material without using a metal part. This makes it possible to produce the drive shaft at low cost and reduce the occurrence of twisting between the first gear and the second gear.
また、本発明のフィルタ掃除ユニットは、上記駆動軸と、第１歯車および第２歯車と噛み合う突起部を一方の面に有するフィルタと、フィルタをスライド可能に保持するフィルタ保持部を備える。
Further, the filter cleaning unit of the present invention includes the above-mentioned drive shaft, a filter having a protrusion that meshes with the first gear and the second gear on one surface, and a filter holding portion that slidably holds the filter.
上記構成によれば、低コストの駆動軸を用いることにより、フィルタ掃除ユニットを安価に提供できる。
According to the above configuration, the filter cleaning unit can be provided at low cost by using the low-cost drive shaft.
以下、図面を参照しながら、実施の形態を詳細に説明する。但し、必要以上に詳細な説明は、省略する場合がある。例えば、既によく知られた事項の詳細説明、または実質的に同一の構成に対する重複説明を省略する場合がある。これは、以下の説明が必要以上に冗長になるのを避け、当業者の理解を容易にするためである。
Embodiments will be described in detail below with reference to the drawings. However, more detailed explanation than necessary may be omitted. For example, detailed description of well-known matters or duplicate description of substantially the same configuration may be omitted. This is to prevent the following description from being unnecessarily redundant and to facilitate understanding by those skilled in the art.
なお、添付図面および以下の説明は、当業者が本開示を十分に理解するために提供されるのであって、これらにより請求の範囲に記載の主題を限定することを意図していない。
It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the claimed subject matter by them.
（実施の形態）
以下、本発明の実施の形態の空気調和機について、図１を用いて、説明する。 (Embodiment)
Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to FIG.
以下、本発明の実施の形態の空気調和機について、図１を用いて、説明する。 (Embodiment)
Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to FIG.
なお、以降では、後述する上面開口部２ｂ側を上方、その反対側を下方、前面パネル３側を前方、その反対側を後方として、説明する。さらに、前方から前面パネル３を見て、左側（奥行側）を左方、右側（手前側）を右方として、説明する。
In the following description, the upper surface opening 2b side, which will be described later, will be referred to as the upper side, the opposite side as the lower side, the front panel 3 side as the front side, and the opposite side as the rear side. Further, when the front panel 3 is viewed from the front, the left side (depth side) will be referred to as the left side, and the right side (front side) will be referred to as the right side.
図１は、本実施の形態に係る駆動軸１４およびそれを用いたフィルタ掃除ユニット１１を組み込んだ空気調和機の室内機１の断面を示す図である。
FIG. 1 is a view showing a cross section of an indoor unit 1 of an air conditioner in which a drive shaft 14 according to the present embodiment and a filter cleaning unit 11 using the drive shaft 14 are incorporated.
図１に示すように、空気調和機の室内機１は、本体２、本体２の前面側に開口する前面開口部２ａ、本体２の上面側に開口する上面開口部２ｂなどを備える。前面開口部２ａは、開閉自在に構成される前面パネル３で覆われる。なお、前面パネル３は、通常、閉じた状態で保持され、使用者が、例えばメンテナンス作業をする際などにおいて、開かれる。
As shown in FIG. 1, the indoor unit 1 of the air conditioner includes a main body 2, a front opening 2a opening to the front side of the main body 2, an upper opening 2b opening to the upper side of the main body 2, and the like. The front opening 2a is covered with a front panel 3 which can be opened and closed. The front panel 3 is normally held in a closed state and opened when the user performs maintenance work, for example.
本体２は、本体２の内部に配設される、ファン５、熱交換器４、フィルタ１０、フィルタ掃除ユニット１１などを備える。ファン５は、駆動時の回転により、室内の空気を上面開口部２ｂから内部に吸い込む。そして、ファン５は、吸い込んだ空気を、通風路９を通って、本体２の下方に設けられた吹出口６から、室内に吹き出す。
The main body 2 includes a fan 5, a heat exchanger 4, a filter 10, a filter cleaning unit 11 and the like arranged inside the main body 2. The fan 5 sucks the air in the room from the top opening 2b by the rotation during driving. Then, the fan 5 blows the sucked air through the ventilation passage 9 into the room from the air outlet 6 provided below the main body 2.
熱交換器４は、前後方向の断面において、略コの字（コの字を含む）の形状で構成され、ファン５の周辺を取り囲むように配設される。そのため、吹出口６側の通風路９の部分には、熱交換器が設けられない。そして、上面開口部２ｂから吸い込まれた空気は、熱交換器４内を通流する冷媒と熱交換される。熱交換された空気は、ファン５の回転により、吹出口６から吹き出される。これにより、空気調和機を介して、室内などの空気調和が実行される。
The heat exchanger 4 is formed in a substantially U-shape (including the U-shape) in a cross section in the front-rear direction, and is arranged so as to surround the periphery of the fan 5. Therefore, the heat exchanger is not provided in the part of the ventilation passage 9 on the blower outlet 6 side. Then, the air sucked from the upper surface opening 2b is heat-exchanged with the refrigerant flowing in the heat exchanger 4. The heat-exchanged air is blown out from the air outlet 6 by the rotation of the fan 5. As a result, air conditioning in a room or the like is performed via the air conditioner.
つまり、吹出口６は、室内に空気を吹き出すように、空気調和機に設けられる。吹出口６は、周辺に配設される、上下風向変更羽根７、左右風向変更羽根８などを有する。上下風向変更羽根７は、吹出口６を開閉するとともに、空気の吹き出し方向を上下に変更する。左右風向変更羽根８は、空気の吹き出し方向を左右に変更する。
That is, the air outlet 6 is provided in the air conditioner so as to blow the air into the room. The air outlet 6 has a vertical airflow direction changing blade 7, a horizontal airflow direction changing blade 8, and the like, which are arranged in the periphery. The up-down air direction changing vane 7 opens and closes the air outlet 6 and changes the air blowing direction up and down. The left and right wind direction changing vanes 8 change the air blowing direction to the left and right.
具体的には、使用者により、空気調和機の空調運転が開始されると、上下風向変更羽根７が開くように制御され、吹出口６が開放される。吹出口６が開放された状態で、ファン５が駆動されると、室内の空気が、上面開口部２ｂを介して、室内機１の内部に取り入れられる。取り入れられた空気は、熱交換器４で熱交換される。熱交換された空気は、ファン５の送風方向の後方下流側に形成される通風路９を通過して、吹出口６から室内に吹き出される。これにより、室内などの空気調和が実行される。
Specifically, when the user starts the air conditioning operation of the air conditioner, the vertical airflow direction changing vanes 7 are controlled to open, and the air outlet 6 is opened. When the fan 5 is driven with the air outlet 6 being opened, the air in the room is taken into the indoor unit 1 through the upper surface opening 2b. The air taken in is heat-exchanged by the heat exchanger 4. The heat-exchanged air passes through the ventilation passage 9 formed on the downstream downstream side of the fan 5 in the blowing direction, and is blown out into the room from the air outlet 6. As a result, air conditioning in a room or the like is executed.
フィルタ１０は、本体２の上面開口部２ｂと熱交換器４との間に設けられる。フィルタ１０は、前面開口部２ａおよび上面開口部２ｂなどから取り入れられた室内の空気中に含まれる塵埃などを付着させて、除去する。なお、フィルタ１０は、枠体部分と、枠体部分に保持される網部分を含んで構成される。
The filter 10 is provided between the upper surface opening 2 b of the main body 2 and the heat exchanger 4. The filter 10 attaches and removes dust and the like contained in the air in the room taken in through the front opening 2a and the upper opening 2b. The filter 10 includes a frame portion and a net portion held by the frame portion.
さらに、本実施の形態の空気調和機は、上記駆動軸１４を含むフィルタ掃除ユニット１１を備える。フィルタ掃除ユニット１１は、フィルタ１０の網部分に付着した塵埃を、自動的に清掃する機能を有する。
Further, the air conditioner of the present embodiment includes the filter cleaning unit 11 including the drive shaft 14 described above. The filter cleaning unit 11 has a function of automatically cleaning dust attached to the mesh portion of the filter 10.
以下、空気調和機のフィルタ掃除ユニット１１について、図２から図４を用いて、説明する。
Hereinafter, the filter cleaning unit 11 of the air conditioner will be described with reference to FIGS. 2 to 4.
図２は、同空気調和機の室内機１のフィルタ掃除ユニット１１の断面を示す図である。図３は、フィルタを省略したフィルタ掃除ユニット１１を示す斜視図である。図４は、フィルタ掃除ユニット１１の駆動軸１４周辺の部分拡大断面を示す図である。
FIG. 2 is a view showing a cross section of the filter cleaning unit 11 of the indoor unit 1 of the air conditioner. FIG. 3 is a perspective view showing the filter cleaning unit 11 without the filter. FIG. 4 is a diagram showing a partially enlarged cross section around the drive shaft 14 of the filter cleaning unit 11.
図２から図４に示すように、フィルタ掃除ユニット１１は、フィルタ１０、フィルタ保持部１２、駆動軸１４、ブラシ１５、塵受け部材１６、ファンなどで例示される排気装置（図示せず）などで構成される。フィルタ保持部１２は、フィルタ１０を上下に挟み込むように構成され、フィルタ１０をスライド自在に保持する。駆動軸１４は、フィルタ１０をスライド搬送させる。ブラシ１５は、フィルタ１０に付着した塵埃などを掻き落とし、除去する。塵受け部材１６は、ブラシ１５で除去した塵埃などを受け止めて溜める。排気装置は、塵受け部材１６に溜まっている塵埃などを、所定の場所に排出する。
As shown in FIGS. 2 to 4, the filter cleaning unit 11 includes a filter 10, a filter holding portion 12, a drive shaft 14, a brush 15, a dust receiving member 16, an exhaust device (not shown) exemplified by a fan, and the like. Composed of. The filter holding portion 12 is configured to sandwich the filter 10 vertically and holds the filter 10 slidably. The drive shaft 14 slides and conveys the filter 10. The brush 15 scrapes and removes dust and the like adhering to the filter 10. The dust receiving member 16 receives and collects dust and the like removed by the brush 15. The exhaust device discharges dust and the like accumulated in the dust receiving member 16 to a predetermined place.
具体的には、フィルタ保持部１２は、図２に示すように、フィルタ１０を保持するための通常ガイド部１２Ａ、折返しガイド部１２Ｂなどを含む。そして、後述する駆動軸１４の回転動作により、フィルタ１０は、通常ガイド部１２Ａから折返しガイド部１２Ｂへ、または、その逆向きの折返しガイド部１２Ｂから通常ガイド部１２Ａへ、スライド搬送される。
Specifically, as shown in FIG. 2, the filter holding part 12 includes a normal guide part 12A for holding the filter 10 and a folded back guide part 12B. Then, by the rotation operation of the drive shaft 14 described later, the filter 10 is slid and conveyed from the normal guide portion 12A to the folding guide portion 12B, or from the reverse folding guide portion 12B to the normal guide portion 12A.
駆動軸１４は、図４に示すように、室内機１の幅方向（図１では奥行方向）に延在する軸部１７（図５参照）、軸部１７の両端に設けられ、歯車部１８を構成する第１歯車１８ａおよび第２歯車１８ｂなどを備える。第１歯車１８ａおよび第２歯車１８ｂは、円筒状で構成され、円周全域に亘って、一体成型により形成される歯を有する。軸部１７、第１歯車１８ａおよび第２歯車１８ｂは、略同径（同径を含む）で形成される。さらに、第１歯車１８ａおよび第２歯車１８ｂに形成される歯は、同じ数および同じピッチで設けられる。
As shown in FIG. 4, the drive shaft 14 is provided at both ends of the shaft portion 17 (see FIG. 5) extending in the width direction (the depth direction in FIG. 1) of the indoor unit 1, and the gear portion 18 The first gear 18a, the second gear 18b, and the like constituting the above are provided. The first gear 18a and the second gear 18b are formed in a cylindrical shape and have teeth formed by integral molding over the entire circumference. The shaft 17, the first gear 18a, and the second gear 18b are formed to have substantially the same diameter (including the same diameter). Further, the teeth formed on the first gear 18a and the second gear 18b are provided with the same number and the same pitch.
一方、フィルタ１０は、図２に示すように、裏面側に形成され、突起部を構成するラック歯１９を備える。フィルタ１０のラック歯１９は、フィルタ１０を軸部１７に架け回した際、第１歯車１８ａおよび第２歯車１８ｂの円周全域に形成される歯と係合するように形成される。これにより、駆動軸１４が回転すると、フィルタ１０がスライド搬送される。なお、駆動軸１４の詳細な構成については、後述する。
On the other hand, as shown in FIG. 2, the filter 10 includes rack teeth 19 which are formed on the back surface side and form protrusions. The rack teeth 19 of the filter 10 are formed so as to engage with the teeth formed over the entire circumference of the first gear 18a and the second gear 18b when the filter 10 is wound around the shaft portion 17. As a result, when the drive shaft 14 rotates, the filter 10 is slid and conveyed. The detailed structure of the drive shaft 14 will be described later.
ブラシ１５は、図４に示すように、駆動軸１４の下方で、駆動軸１４に沿って室内機１の幅方向（図４の奥行方向）に設けられる。ブラシ１５は、上下方向に反転自在に構成される。例えばフィルタ１０の掃除時においては、ブラシ１５は、フィルタ１０と当接するように、上向きに配置される。これにより、フィルタ１０の表面に付着している塵埃が、ブラシ１５で掻き落とされ、除去される。
As shown in FIG. 4, the brush 15 is provided below the drive shaft 14 along the drive shaft 14 in the width direction of the indoor unit 1 (depth direction in FIG. 4 ). The brush 15 is configured to be vertically reversible. For example, when cleaning the filter 10, the brush 15 is arranged facing upward so as to contact the filter 10. As a result, the dust adhering to the surface of the filter 10 is scraped off by the brush 15 and removed.
塵受け部材１６は、図２に示すように、ブラシ１５の下方を覆うように、ブラシ１５に沿って、室内機１の幅方向（図２の奥行方向）に配設される。塵受け部材１６は、図示しない排気装置に連通され、内部に溜まる塵埃などを所定の場所に排出可能に構成される。
As shown in FIG. 2, the dust receiving member 16 is arranged along the brush 15 in the width direction of the indoor unit 1 (the depth direction in FIG. 2) so as to cover the lower side of the brush 15. The dust receiving member 16 is connected to an exhaust device (not shown), and is configured to discharge dust and the like accumulated inside to a predetermined place.
さらに、塵受け部材１６は、内部で、かつブラシ１５の下方部分に設けられる、例えばゴムなどの弾性体などからなるブレード２０を備える。ブレード２０は、ブラシ１５を下向きに反転させた状態において、フィルタ１０からブラシ１５に付着した塵埃などを除去する。これにより、塵受け部材１６内に、除去された塵埃などが蓄積され、排出される。
Further, the dust receiving member 16 includes a blade 20 provided inside and below the brush 15 and made of an elastic body such as rubber. The blade 20 removes dust and the like adhering to the brush 15 from the filter 10 in a state where the brush 15 is inverted downward. As a result, the removed dust or the like is accumulated in the dust receiving member 16 and discharged.
以上のように、フィルタ掃除ユニット１１は構成される。
The filter cleaning unit 11 is configured as described above.
以下、上記構成のフィルタ掃除ユニット１１のフィルタ１０の掃除動作について、説明する。
The cleaning operation of the filter 10 of the filter cleaning unit 11 having the above configuration will be described below.
まず、フィルタ１０は、空気調和機の通常の使用時において、図１に示すように、フィルタ保持部１２の通常ガイド部１２Ａ内に配置される。フィルタ１０は、上面開口部２ｂから取り入れられた室内の空気中に含まれる塵埃などを除去する。
First, the filter 10 is arranged in the normal guide portion 12A of the filter holding portion 12 as shown in FIG. 1 during normal use of the air conditioner. The filter 10 removes dust and the like contained in the indoor air taken in through the upper surface opening 2b.
つぎに、使用者の操作により、フィルタ１０の掃除動作の開始が指示されると、ブラシ１５は、フィルタ１０の表面（ラック歯１９の形成面の反対側の面；塵埃が付着する面）に当接するように、上向きに配置される。そして、例えばモータなどの駆動源により、駆動軸１４が回転駆動される。これにより、第１歯車１８ａおよび第２歯車１８ｂが正方向（図２では反時計回り）に回転し、フィルタ１０が、通常ガイド部１２Ａから、折返しガイド部１２Ｂへスライド搬送される。そして、フィルタ１０は、一端が、折返しガイド部１２Ｂと通常ガイド部１２Ａとの合流部分１２Ｃを通過して、通常ガイド部１２Ａの最終端に到達する。最終端に到達すると、第１歯車１８ａおよび第２歯車１８ｂが逆方向（図２では時計回り）に回転する。これにより、フィルタ１０は、折返しガイド部１２Ｂから、通常ガイド部１２Ａへとスライド搬送される。
Next, when an instruction to start the cleaning operation of the filter 10 is given by the user's operation, the brush 15 is attached to the surface of the filter 10 (the surface opposite to the surface on which the rack teeth 19 are formed; the surface to which dust is attached). It is arranged upward so as to abut. The drive shaft 14 is rotationally driven by a drive source such as a motor. As a result, the first gear 18a and the second gear 18b rotate in the forward direction (counterclockwise in FIG. 2), and the filter 10 is slid and conveyed from the normal guide portion 12A to the folding guide portion 12B. Then, one end of the filter 10 passes through the confluent portion 12C of the folded guide portion 12B and the normal guide portion 12A and reaches the final end of the normal guide portion 12A. When reaching the final end, the first gear 18a and the second gear 18b rotate in opposite directions (clockwise in FIG. 2). As a result, the filter 10 is slid and conveyed from the folding guide portion 12B to the normal guide portion 12A.
そして、上記フィルタ１０のスライド搬送時において、フィルタ１０に付着した塵埃などが、接触配置されるブラシ１５により、掻き落とされ、除去される。さらに、フィルタ１０からブラシ１５に付着した塵埃は、ブラシ１５の下方への反転により、ブレード２０と当接して、ブラシ１５から除去される。フィルタ１０およびブラシ１５から除去された塵埃などは、落下して、塵受け部材１６で受け止められる。そして、塵受け部材１６内の塵埃などは、例えば所定時間（例えば、２４時間）ごとに駆動される排気装置により、例えば屋外などの所定の場所へと排出される。
Then, when the filter 10 is slid and conveyed, dust and the like adhering to the filter 10 is scraped off and removed by the brush 15 arranged in contact with the filter 10. Further, the dust attached to the brush 15 from the filter 10 is removed downward from the brush 15 by coming into contact with the blade 20 by reversing the brush 15 downward. Dust removed from the filter 10 and the brush 15 falls and is caught by the dust receiving member 16. Then, the dust or the like in the dust receiving member 16 is discharged to a predetermined place such as outdoors by an exhaust device that is driven, for example, every predetermined time (for example, 24 hours).
以上のように、フィルタ掃除ユニット１１のフィルタ１０の掃除動作が実行される。
As described above, the cleaning operation of the filter 10 of the filter cleaning unit 11 is executed.
つぎに、フィルタ１０をスライド搬送する駆動軸１４の構成について、図５から図８を用いて、説明する。
Next, the configuration of the drive shaft 14 that slides and conveys the filter 10 will be described with reference to FIGS. 5 to 8.
図５は、同実施の形態に係る駆動軸１４の正面図である。図６は、駆動軸１４の分解斜視図である。図７は、駆動軸１４の内部を示す分解斜視図である。図８は、駆動軸１４の分解平面図である。
FIG. 5 is a front view of the drive shaft 14 according to the same embodiment. FIG. 6 is an exploded perspective view of the drive shaft 14. FIG. 7 is an exploded perspective view showing the inside of the drive shaft 14. FIG. 8 is an exploded plan view of the drive shaft 14.
図５から図８に示すように、駆動軸１４は、上述したように、軸部１７、歯車部１８などを備える。軸部１７は、第１軸部１７ａ、第２軸部１７ｂなどを含む。第１軸部１７ａおよび第２軸部１７ｂは、後述する平面部１７ａｂ、１７ｂｂおよび曲面部１７ａａ、１７ｂａを有する。歯車部１８は、第１歯車１８ａ、第２歯車１８ｂなどを含み、軸部１７の両端に配設される。そして、軸部１７は、第１軸部１７ａの平面部１７ａｂと、第２軸部１７ｂの平面部１７ｂｂとが、互いに重ね合うように配置されて、構成される。
As shown in FIGS. 5 to 8, the drive shaft 14 includes the shaft portion 17, the gear portion 18, and the like, as described above. The shaft portion 17 includes a first shaft portion 17a, a second shaft portion 17b, and the like. The first shaft portion 17a and the second shaft portion 17b have flat surface portions 17ab and 17bb and curved surface portions 17aa and 17ba, which will be described later. The gear unit 18 includes a first gear 18a, a second gear 18b, and the like, and is arranged at both ends of the shaft unit 17. The shaft portion 17 is configured by arranging the flat surface portion 17ab of the first shaft portion 17a and the flat surface portion 17bb of the second shaft portion 17b so as to overlap each other.
具体的には、まず、第１軸部１７ａと第１歯車１８ａとは、例えばＡＢＳ樹脂などの樹脂材料で一体成型され、第１駆動軸部材１４ａを構成する。同様に、第２軸部１７ｂと第２歯車１８ｂとは、例えばＡＢＳなどの樹脂材料で一体成型され、第２駆動軸部材１４ｂを構成する。そして、駆動軸１４は、図６から図８に示すように、長手方向に沿って、半割にした一対の半割一体部品である、第１駆動軸部材１４ａと第２駆動軸部材１４ｂとの接合により、形成される。
Specifically, first, the first shaft portion 17a and the first gear 18a are integrally molded with a resin material such as ABS resin to form the first drive shaft member 14a. Similarly, the second shaft portion 17b and the second gear 18b are integrally molded with a resin material such as ABS to form the second drive shaft member 14b. Then, as shown in FIGS. 6 to 8, the drive shaft 14 includes a first drive shaft member 14a and a second drive shaft member 14b, which are a pair of half-split integral parts that are split in half along the longitudinal direction. Are formed by joining
より詳しく説明すると、第１駆動軸部材１４ａおよび第２駆動軸部材１４ｂは、軸部１７が半割された第１軸部１７ａおよび第２軸部１７ｂを有する。つまり、第１駆動軸部材１４ａは第１軸部１７ａを含んで形成され、第２駆動軸部材１４ｂは第２軸部１７ｂを含んで形成される。
More specifically, the first drive shaft member 14a and the second drive shaft member 14b have a first shaft portion 17a and a second shaft portion 17b obtained by dividing the shaft portion 17 in half. That is, the first drive shaft member 14a is formed to include the first shaft portion 17a, and the second drive shaft member 14b is formed to include the second shaft portion 17b.
そして、第１駆動軸部材１４ａは、第１軸部１７ａと、第１軸部１７ａの一端（図６の左側）に一体成型した完成歯車状態の第１歯車１８ａとから構成される。このとき、第１軸部１７ａは、回転方向に平行な、半円状の形状の断面を有する。そのため、第１軸部１７ａは、上記断面における弧を含む曲面部１７ａａと、弦を含む平面部１７ａｂとを含む。さらに、第１軸部１７ａは、第１軸部１７ａの長手方向の中心を境に、左側（第１歯車１８ａ側）に設けられる複数の凸部２１と、右側に設けられる複数の凹部２２を備える。複数の凸部２１は、第１軸部１７ａの平面部１７ａｂから突き出るように設けられる。複数の凹部２２は、平面部１７ａｂから曲面部１７ａａへ食い込むように設けられる。
The first drive shaft member 14a is composed of a first shaft portion 17a and a first gear wheel 18a in a completed gear state integrally molded with one end of the first shaft portion 17a (left side in FIG. 6). At this time, the first shaft portion 17a has a semicircular cross section that is parallel to the rotation direction. Therefore, the first shaft portion 17a includes a curved surface portion 17aa including the arc in the cross section and a flat surface portion 17ab including the chord. Further, the first shaft portion 17a has a plurality of convex portions 21 provided on the left side (the first gear 18a side) and a plurality of concave portions 22 provided on the right side with the center in the longitudinal direction of the first shaft portion 17a as a boundary. Prepare The plurality of convex portions 21 are provided so as to protrude from the flat surface portion 17ab of the first shaft portion 17a. The plurality of concave portions 22 are provided so as to bite into the curved surface portion 17aa from the flat surface portion 17ab.
同様に、第２駆動軸部材１４ｂは、第２軸部１７ｂと、第２軸部１７ｂの他端（第１駆動軸部材１４ａの反対側；図６の右側）に一体成型した完成歯車状態の第２歯車１８ｂとから構成される。このとき、第２軸部１７ｂは、回転方向に平行な、半円状の形状の断面を有する。そのため、第２軸部１７ｂは、上記断面における弧を含む曲面部１７ｂａと、弦を含む平面部１７ｂｂとを含む。さらに、第２軸部１７ｂは、第１軸部１７ａと同様に、第２軸部１７ｂの長手方向の中心を境に、右側（第２歯車１８ｂ側）に設けられる複数の凸部２１と、左側に設けられる複数の凹部２２を備える。複数の凸部２１は、平面部１７ｂｂから突き出るように設けられる。複数の凹部２２は、平面部１７ｂｂから曲面部１７ｂａへ食い込むように設けられる。
Similarly, the second drive shaft member 14b is in a completed gear state integrally molded with the second shaft portion 17b and the other end of the second shaft portion 17b (the opposite side of the first drive shaft member 14a; the right side in FIG. 6). It is composed of the second gear 18b. At this time, the second shaft portion 17b has a semicircular cross section that is parallel to the rotation direction. Therefore, the second shaft portion 17b includes a curved surface portion 17ba including an arc in the cross section and a flat surface portion 17bb including a chord. Further, the second shaft portion 17b, like the first shaft portion 17a, has a plurality of convex portions 21 provided on the right side (second gear 18b side) with the longitudinal center of the second shaft portion 17b as a boundary. It has a plurality of recesses 22 provided on the left side. The plurality of convex portions 21 are provided so as to protrude from the flat surface portion 17bb. The plurality of recesses 22 are provided so as to bite into the curved surface portion 17ba from the flat surface portion 17bb.
そして、第１軸部１７ａの凸部２１を、対応する第２軸部１７ｂの凹部２２に嵌合させる。これにより、第１軸部１７ａと第２軸部１７ｂとが接合して一体化し、駆動軸１４が形成される。なお、第１軸部１７ａの凹部２２を、対応する第２軸部１７ｂの凸部２１に嵌合させて、駆動軸１４を形成してもよい。
Then, the convex portion 21 of the first shaft portion 17a is fitted into the corresponding concave portion 22 of the second shaft portion 17b. As a result, the first shaft portion 17a and the second shaft portion 17b are joined and integrated to form the drive shaft 14. The drive shaft 14 may be formed by fitting the concave portion 22 of the first shaft portion 17a into the corresponding convex portion 21 of the second shaft portion 17b.
ここで、図５から図８は、第１軸部１７ａの凸部２１が第２軸部１７ｂの凹部２２に、第２軸部１７ｂの凸部２１が第１軸部１７ａの凹部２２に、それぞれ嵌合して形成された駆動軸１４を示している。
Here, in FIGS. 5 to 8, the convex portion 21 of the first shaft portion 17a is in the concave portion 22 of the second shaft portion 17b, and the convex portion 21 of the second shaft portion 17b is in the concave portion 22 of the first shaft portion 17a. The drive shafts 14 formed by fitting each are shown.
以上により、それぞれ第１歯車１８ａおよび第２歯車１８ｂを両端に含む第１軸部１７ａおよび第２軸部１７ｂからなる軸部１７を備える駆動軸１４が構成される。
With the above, the drive shaft 14 including the shaft portion 17 including the first shaft portion 17a and the second shaft portion 17b including the first gear 18a and the second gear 18b at both ends is configured.
つまり、本実施の形態の第１駆動軸部材１４ａは、第１軸部１７ａの長手方向の略中心（中心を含む）を境として、第１歯車１８ａを有する側に複数の凹部２２を設け、第１歯車１８ａを有さない側に複数の凸部２１を設けている。同様に、第２駆動軸部材１４ｂは、第２軸部１７ｂの長手方向の略中心（中心を含む）を境として、第２歯車１８ｂを有する側に複数の凹部２２を設け、第２歯車１８ｂを有さない側に複数の凸部２１を設けている。
That is, the first drive shaft member 14a of the present embodiment is provided with a plurality of recesses 22 on the side having the first gear 18a with the substantially center (including the center) of the first shaft portion 17a in the longitudinal direction as a boundary, A plurality of convex portions 21 are provided on the side not having the first gear 18a. Similarly, the second drive shaft member 14b is provided with a plurality of recesses 22 on the side having the second gear 18b with the substantially center (including the center) in the longitudinal direction of the second shaft portion 17b as a boundary. A plurality of convex portions 21 are provided on the side not having.
これにより、第１駆動軸部材１４ａおよび第２駆動軸部材１４ｂが、同一形状の部材で構成される。そして、一方の第１駆動軸部材１４ａの凸部２１を、他方の第２駆動軸部材１４ｂの凹部２２に嵌合させて接合する。これにより、軸部１７の両端に、第１歯車１８ａおよび第２歯車１８ｂを備える駆動軸１４が形成される。
With this, the first drive shaft member 14a and the second drive shaft member 14b are configured by members having the same shape. Then, the convex portion 21 of the first drive shaft member 14a on one side is fitted and joined to the concave portion 22 of the second drive shaft member 14b on the other side. As a result, the drive shaft 14 including the first gear 18a and the second gear 18b is formed at both ends of the shaft portion 17.
また、駆動軸１４の軸部１７は、第１軸部１７ａと第２軸部１７ｂとを嵌合した状態において、中空形状で構成される。つまり、第１軸部１７ａは、平面部１７ａｂから、曲面部１７ａａにかけて開口する形状で形成される。同様に、第２軸部１７ｂは、平面部１７ｂｂから、曲面部１７ｂａにかけて開口する形状で形成される。これにより、軸部１７の内部が中空形状で形成される。
Further, the shaft portion 17 of the drive shaft 14 is formed in a hollow shape in a state where the first shaft portion 17a and the second shaft portion 17b are fitted together. That is, the first shaft portion 17a is formed in a shape that opens from the flat surface portion 17ab to the curved surface portion 17aa. Similarly, the second shaft portion 17b is formed in a shape that opens from the flat surface portion 17bb to the curved surface portion 17ba. As a result, the inside of the shaft portion 17 is formed in a hollow shape.
さらに、第１駆動軸部材１４ａは、曲面部１７ａａの内部に設けられる、第１軸部１７ａの内面軸線方向（長手方向）に沿って形成される第一補強リブ２３と、第一補強リブ２３と交差する方向（短手方向）に形成される複数の第二補強リブ２４を有する。同様に、第２駆動軸部材１４ｂは、曲面部１７ｂａの内部に設けられる、第２軸部１７ｂの内面軸線方向に沿って形成される第一補強リブ２３と、第一補強リブ２３と交差する方向に形成される複数の第二補強リブ２４を有する。これにより、駆動軸１４の機械的強度が向上するとともに、駆動軸１４のねじれに対する強度が向上する。その結果、フィルタ１０のスライド搬送時の負荷変動などに起因する、駆動軸１４のねじれの発生を抑制できる。
Further, the first drive shaft member 14a is provided inside the curved surface portion 17aa, and is formed along the inner surface axial direction (longitudinal direction) of the first shaft portion 17a, and the first reinforcing rib 23. It has a plurality of second reinforcing ribs 24 formed in a direction intersecting with (shorter direction). Similarly, the second drive shaft member 14b intersects with the first reinforcing rib 23, which is provided inside the curved surface portion 17ba and is formed along the inner surface axial direction of the second shaft portion 17b. It has a plurality of second reinforcing ribs 24 formed in the direction. As a result, the mechanical strength of the drive shaft 14 is improved, and the strength of the drive shaft 14 against twisting is improved. As a result, it is possible to suppress the occurrence of twist of the drive shaft 14 due to load fluctuations during the slide conveyance of the filter 10.
以上のように、駆動軸１４は構成される。
The drive shaft 14 is configured as described above.
上述したように、本実施の形態の駆動軸１４は、第１軸部１７ａおよび第１歯車１８ａが樹脂材料の一体成型で形成される第１駆動軸部材１４ａと、同様に形成される第２駆動軸部材１４ｂとで構成される。そのため、従来の金属部品と樹脂部品の組み合わせにより形成されるフィルタ駆動軸と比べて、材料費を低減できる。これにより、低コストで駆動軸１４を形成できる。
As described above, the drive shaft 14 according to the present embodiment is similar to the first drive shaft member 14a in which the first shaft portion 17a and the first gear 18a are integrally molded of a resin material and the second drive shaft member 14a. It is composed of a drive shaft member 14b. Therefore, the material cost can be reduced as compared with the conventional filter drive shaft formed by combining the metal component and the resin component. Thereby, the drive shaft 14 can be formed at low cost.
また、駆動軸１４は、軸部１７を半割形状で形成した第１駆動軸部材１４ａおよび第２駆動軸部材１４ｂの半割面である平面部１７ａｂ、１７ｂｂに設けた凸部２１と凹部２２を嵌合させるだけで一体化できる。そのため、駆動軸１４の組み立て性が向上するとともに、安価な駆動軸１４を提供できる。
Further, the drive shaft 14 has a convex portion 21 and a concave portion 22 provided on flat surface portions 17ab and 17bb which are half-divided surfaces of the first drive shaft member 14a and the second drive shaft member 14b in which the shaft portion 17 is formed in a half-divided shape. Can be integrated simply by fitting. Therefore, the assemblability of the drive shaft 14 is improved and the inexpensive drive shaft 14 can be provided.
そして、本実施の形態のフィルタ掃除ユニット１１は、低コストで組み立て性に優れた駆動軸１４を用いて構成できる。そのため、フィルタ掃除ユニット１１を低コストで実現できる。
The filter cleaning unit 11 of the present embodiment can be configured using the drive shaft 14 that is low in cost and excellent in assembling. Therefore, the filter cleaning unit 11 can be realized at low cost.
また、軸部１７は、中空形状の第１軸部１７ａおよび第２軸部１７ｂを接合して、中空形状で形成される。そのため、軸部１７を形成する樹脂材料の費用の低減により、さらに安価に軸部１７を提供できる。同時に、駆動軸１４の軽量化を図ることができる。これにより、軸部１７の組み立て時における、部品としての取り扱い性が、さらに向上する。
The shaft portion 17 is formed in a hollow shape by joining the hollow first shaft portion 17a and the second shaft portion 17b. Therefore, since the cost of the resin material forming the shaft portion 17 is reduced, the shaft portion 17 can be provided at a lower cost. At the same time, the weight of the drive shaft 14 can be reduced. This further improves the handleability as a component when the shaft portion 17 is assembled.
また、駆動軸１４を構成する一対の第１駆動軸部材１４ａおよび第２駆動軸部材１４ｂは、構成部材である、第１歯車１８ａ、第２歯車１８ｂ、凹部２２および凸部２１が、左右対称となるように配置される。これにより、第１駆動軸部材１４ａおよび第２駆動軸部材１４ｂを、同一の形状の部品で構成できるため、部品管理が容易になる。また、駆動軸１４の組み立て間違いなどを、防止できる。さらに、第１駆動軸部材１４ａおよび第２駆動軸部材１４ｂを一体成型する金型を、一種類で構成できる。そのため、大幅な生産コストの低減とともに、さらに安価な駆動軸１４を実現できる。
In addition, the pair of first drive shaft member 14a and second drive shaft member 14b forming the drive shaft 14 are the constituent members, that is, the first gear 18a, the second gear 18b, the concave portion 22 and the convex portion 21 are bilaterally symmetrical. It is arranged so that. As a result, the first drive shaft member 14a and the second drive shaft member 14b can be configured by parts having the same shape, which facilitates parts management. In addition, it is possible to prevent a mistake in assembling the drive shaft 14. Further, the mold for integrally molding the first drive shaft member 14a and the second drive shaft member 14b can be configured by one type. Therefore, it is possible to significantly reduce the production cost and realize the drive shaft 14 at a lower cost.
また、駆動軸１４の軸部１７は、中空形状で形成される。そのため、回転軸方向に沿った長さが長い柱状の中実の軸部に比べて、その肉厚の厚みに起因する、成型時のヒケによる軸線たわみなどの発生を低減できる。これにより、樹脂製の軸部１７でフィルタの駆動軸１４を構成しても、軸部１７の軸線を直線状に安定して維持できる。
Further, the shaft portion 17 of the drive shaft 14 is formed in a hollow shape. Therefore, as compared with a solid shaft portion having a long columnar shape along the rotation axis direction, it is possible to reduce the occurrence of axial line deflection due to sink marks due to the thickness of the shaft portion. Accordingly, even if the drive shaft 14 of the filter is configured by the resin shaft portion 17, the axis of the shaft portion 17 can be stably maintained in a straight line.
さらに、中空形状の軸部１７を構成する第１軸部１７ａおよび第２軸部１７ｂは、内面軸線方向（長手方向）に沿って形成される第一補強リブ２３と、第一補強リブ２３と交差する方向（短手方向）に形成される複数の第二補強リブ２４を有する。これにより、中空形状でも、柱状の中実の軸部と同程度の剛性を持たせることができる。その結果、軸部１７の軸線のたわみの発生を効果的に抑制して、剛性の高い駆動軸１４を実現できる。
Further, the first shaft portion 17a and the second shaft portion 17b that form the hollow shaft portion 17 include a first reinforcing rib 23 formed along the inner surface axial direction (longitudinal direction), and a first reinforcing rib 23. It has a plurality of second reinforcing ribs 24 formed in the intersecting direction (shorter direction). Thereby, even in the hollow shape, it is possible to provide the same degree of rigidity as that of the solid columnar shaft. As a result, the flexure of the axis of the shaft portion 17 can be effectively suppressed, and the drive shaft 14 having high rigidity can be realized.
また、第１駆動軸部材１４ａと第２駆動軸部材１４ｂは、回転駆動時において、第１軸部１７ａの平面部１７ａｂおよび第２軸部１７ｂの平面部１７ｂｂを介して、トルクが伝達される。そのため、第１歯車１８ａ側にのみ駆動用のモータを設けて駆動する場合でも、モータの駆動力が、第１軸部１７ａの平面部１７ａｂおよび第２軸部１７ｂの平面部１７ｂｂを介して、確実に伝達され、第２歯車１８ｂにトルクが伝わる。これにより、フィルタ１０の駆動に駆動軸１４を用いた場合でも、第１歯車１８ａと第２歯車１８ｂとの撓みや、ずれを、より確実に低減できる。
Further, the torque is transmitted to the first drive shaft member 14a and the second drive shaft member 14b via the flat surface portion 17ab of the first shaft portion 17a and the flat surface portion 17bb of the second shaft portion 17b during rotational driving. .. Therefore, even when a driving motor is provided and driven only on the first gear 18a side, the driving force of the motor is generated through the flat surface portion 17ab of the first shaft portion 17a and the flat surface portion 17bb of the second shaft portion 17b. It is reliably transmitted, and the torque is transmitted to the second gear 18b. As a result, even when the drive shaft 14 is used to drive the filter 10, it is possible to more reliably reduce the bending and displacement between the first gear 18a and the second gear 18b.
そして、本実施の形態のフィルタ掃除ユニット１１は、上記構成を有する駆動軸１４を備える。そのため、撓みなどの無い平面性の高い軸部１７により、軸部１７に架け回すフィルタ１０の平面度を上げることができる。これにより、ブラシ１５を、フィルタ１０の幅全域に亘って、より確実に接触させることができる。その結果、ブラシ１５によるフィルタ１０の掃除性能を、さらに向上させることができる。
The filter cleaning unit 11 of the present embodiment includes the drive shaft 14 having the above configuration. Therefore, the flatness of the filter 10 that is stretched around the shaft portion 17 can be increased by the shaft portion 17 that is highly flat and has no bending. Thereby, the brush 15 can be contacted more reliably over the entire width of the filter 10. As a result, the cleaning performance of the filter 10 with the brush 15 can be further improved.
また、駆動軸１４は、軸部１７を構成する第１軸部１７ａおよび第２軸部１７ｂが半割形状で形成される。一方、歯車部１８を構成する第１歯車１８ａおよび第２歯車１８ｂは、半割形状ではなく、円筒状の完成歯車で形成される。そのため、フィルタ１０のスライド搬送時において、何らかの原因で歯車部１８に過大なトルクが加わっても、歯車部１８の分離損壊などが発生しにくい。これにより、長期にわたって高い信頼性を維持できる駆動軸１４を実現できる。
Further, in the drive shaft 14, the first shaft portion 17a and the second shaft portion 17b forming the shaft portion 17 are formed in a half-split shape. On the other hand, the first gear 18a and the second gear 18b that form the gear unit 18 are formed by a complete gear having a cylindrical shape instead of a half-split shape. Therefore, even if an excessive torque is applied to the gear portion 18 for some reason during the slide conveyance of the filter 10, the gear portion 18 is unlikely to be separated or damaged. Thereby, the drive shaft 14 that can maintain high reliability for a long period of time can be realized.
つまり、例えば第１歯車および第２歯車を、軸部１７と同様に、半割形状で接合して一体化した場合、歯車部に過大なトルクが加わると、歯車部が半割状態に分離損壊する懸念がある。そこで、本実施の形態の駆動軸１４は、第１歯車１８ａと第２歯車１８ｂを、それぞれ一体物の完成品で構成する。これにより、半割形状を組み合わせた歯車部に発生しやすい分離損壊などを、未然に防止できる。その結果、さらに信頼性の高い駆動軸１４を実現できる。
That is, for example, when the first gear and the second gear are joined and integrated in a half split shape like the shaft portion 17, if excessive torque is applied to the gear portion, the gear portion is separated and broken into a half split state. I have a concern. Therefore, in the drive shaft 14 of the present embodiment, the first gear 18a and the second gear 18b are each formed as an integrated product. As a result, it is possible to prevent separation damage or the like that is likely to occur in the gear part that is a combination of the halved shapes. As a result, the drive shaft 14 with higher reliability can be realized.
そして、本実施の形態のフィルタ掃除ユニット１１は、上記構成を有する駆動軸１４を備える。そのため、駆動軸１４の歯車部１８の分離損壊などの発生を心配する必要がない。これにより、信頼性の高いフィルタ掃除ユニット１１を実現できる。
The filter cleaning unit 11 of the present embodiment includes the drive shaft 14 having the above configuration. Therefore, there is no need to worry about the occurrence of separation damage or the like of the gear portion 18 of the drive shaft 14. Thereby, the filter cleaning unit 11 with high reliability can be realized.
以上、本発明に係るフィルタ１０の駆動軸１４およびそれを用いたフィルタ掃除ユニット１１について、上記実施の形態を用いて説明したが、本発明はこれに限定されるものではない。
The drive shaft 14 of the filter 10 and the filter cleaning unit 11 using the same according to the present invention have been described above with reference to the above embodiments, but the present invention is not limited to this.
例えば、上記実施の形態では、フィルタ１０の駆動軸１４およびフィルタ掃除ユニット１１を用いた機器として、空気調和機を例に説明したが、これに限られない。機器は、例えば空気清浄機でもよい。つまり、搬送可能なフィルタを用いる機器であれば、特に制限されず、どのような機器でもよい。
For example, in the above-described embodiment, an air conditioner has been described as an example of the device using the drive shaft 14 of the filter 10 and the filter cleaning unit 11, but the device is not limited to this. The device may be, for example, an air purifier. That is, as long as it is a device that uses a filter that can be transported, it is not particularly limited, and any device may be used.
また、今回開示した実施の形態は、すべての点で例示であって制限的なものではないと考えられるべきである。そのため、本発明の範囲は、請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれるものである。
Also, the embodiments disclosed this time are to be considered as illustrative in all points and not restrictive. Therefore, the scope of the present invention is defined by the claims, and includes meaning equivalent to the claims and all modifications within the scope.
以上で説明したように、本発明の駆動軸は、実質的に半円状の断面を有する第１軸部と、第１軸部の一端に設けられる第１歯車を含む第１駆動軸部材と、実質的に半円状の断面を有する第２軸部と、第２軸部の一端に設けられる第２歯車を含む第２駆動軸部材を備える。第１軸部および第２軸部は、実質的に半円状の断面の弧を含む曲面部と実質的に半円状の断面の弦を含む平面部を有する。そして、駆動軸は、第１駆動軸部材の平面部と第２駆動軸部材の平面部とを、互いに重ね合わすことにより、実質的に円柱状で構成される軸部を有する。
As described above, the drive shaft of the present invention includes a first shaft portion having a substantially semicircular cross section, and a first drive shaft member including a first gear provided at one end of the first shaft portion. A second drive shaft member including a second shaft portion having a substantially semicircular cross section and a second gear provided at one end of the second shaft portion. The first shaft portion and the second shaft portion have a curved surface portion including an arc having a substantially semicircular cross section and a flat portion including a chord having a substantially semicircular cross section. The drive shaft has a shaft portion that is formed in a substantially cylindrical shape by overlapping the flat surface portion of the first drive shaft member and the flat surface portion of the second drive shaft member with each other.
上記構成によれば、軸部と歯車とを樹脂材料の一体成型で形成できる。そのため、金属部品と樹脂部品との組み合わせによる駆動軸に比べて、材料費を低減できる。また、駆動軸は、軸部の平面部を重ね合わることにより、一体化して形成される。そのため、組み立て性に優れ、安価な駆動軸を提供できる。
According to the above configuration, the shaft portion and the gear can be integrally formed of resin material. Therefore, the material cost can be reduced as compared with the drive shaft formed by combining the metal parts and the resin parts. Further, the drive shaft is integrally formed by stacking the flat surface portions of the shaft portion. Therefore, it is possible to provide an inexpensive drive shaft that is excellent in assemblability.
また、本発明の駆動軸は、軸部が中空形状で構成されることが望ましい。
Also, the drive shaft of the present invention preferably has a hollow shaft portion.
この構成によれば、駆動軸の軸部の材料費を低減できるとともに、フィルタの駆動軸の軽量化を図ることができる。そのため、安価で利便性の高い駆動軸を提供できる。さらに、回転軸の軸部に沿った長さが長い形状の場合における、中実の軸部の構成で生じやすいヒケによる軸線たわみなどの発生を低減できる。これにより、軸部を樹脂製としても、良好なフィルタの駆動性能が得られる駆動軸を提供できる。
With this configuration, the material cost of the shaft portion of the drive shaft can be reduced, and the weight of the drive shaft of the filter can be reduced. Therefore, an inexpensive and highly convenient drive shaft can be provided. Further, in the case of a shape in which the length of the rotary shaft along the shaft portion is long, it is possible to reduce the occurrence of axial line deflection due to sink marks which is likely to occur in the configuration of the solid shaft portion. As a result, it is possible to provide a drive shaft that achieves good filter drive performance even if the shaft portion is made of resin.
また、本発明の駆動軸の第１歯車は、第１駆動軸部材において、円周全域に設けられる歯を有する構成が望ましい。
Further, it is desirable that the first gear of the drive shaft of the present invention has teeth provided on the entire circumference of the first drive shaft member.
この構成によれば、第１歯車は、第１駆動軸部材において、一体物の完成歯車で構成される。そのため、第１歯車に大きなトルクが加わる場合でも、第１歯車の分離や損壊を低減できる。さらに、例えばフィルタ掃除ユニットに組み込まれた状態において、第１歯車とフィルタとの噛み合わせが良好になる。そのため、第１歯車の位置に対して、フィルタが滑るなどの現象の発生を低減できる。
According to this configuration, the first gear is a complete gear of the first drive shaft member. Therefore, even when a large torque is applied to the first gear, separation and damage of the first gear can be reduced. In addition, for example, in the state where it is incorporated in the filter cleaning unit, the meshing of the first gear and the filter becomes good. Therefore, it is possible to reduce the occurrence of phenomena such as the filter slipping with respect to the position of the first gear.
また、本発明の駆動軸の第２歯車は、第２駆動軸部材において、円周全域に設けられる歯を有する構成が望ましい。
Also, the second gear of the drive shaft of the present invention preferably has a configuration in which teeth are provided on the entire circumference of the second drive shaft member.
この構成によれば、第２歯車も、第１歯車と同様に、一体物の完成歯車で構成される。これにより、より信頼性の高い駆動軸を提供できる。
According to this configuration, the second gear is also composed of a completed gear of the same body as the first gear. This makes it possible to provide a more reliable drive shaft.
また、本発明の駆動軸は、第１軸部の平面部および第２軸部の平面部の各々が、凸部と凹部とを備え、対応する第１軸部の凸部と第２軸部の凹部とが嵌合される構成が望ましい。
Further, in the drive shaft of the present invention, each of the flat surface portion of the first shaft portion and the flat surface portion of the second shaft portion includes a convex portion and a concave portion, and the corresponding convex portion and second axial portion of the first shaft portion are provided. It is desirable to have a configuration in which the concave portion is fitted.
この構成によれば、駆動軸の製造時において、対応する凸部と凹部とに基づいて、２つの部材を容易に組み合わせて製造できる。これにより、駆動軸を、生産性良く、容易に製造できる。その結果、さらに安価に駆動軸を実現できる。
With this configuration, when the drive shaft is manufactured, the two members can be easily combined and manufactured based on the corresponding protrusions and recesses. Thereby, the drive shaft can be easily manufactured with high productivity. As a result, the drive shaft can be realized at a lower cost.
また、本発明のフィルタ掃除ユニットは、上記駆動軸と、第１歯車および第２歯車と噛み合う突起部を一方の面に有するフィルタと、フィルタをスライド可能に保持するフィルタ保持部を備える。
Further, the filter cleaning unit of the present invention includes the above-mentioned drive shaft, a filter having a protrusion that meshes with the first gear and the second gear on one surface, and a filter holding portion that slidably holds the filter.
この構成によれば、フィルタ掃除ユニットに、安価な駆動軸を用いることができる。これにより、フィルタ掃除ユニットのコストを低減できる。さらに、安価なフィルタ掃除ユニットの提供により、低コストの空気調和機などの機器を実現できる。
With this configuration, an inexpensive drive shaft can be used for the filter cleaning unit. This can reduce the cost of the filter cleaning unit. Furthermore, by providing an inexpensive filter cleaning unit, a low-cost device such as an air conditioner can be realized.
本発明は、フィルタの駆動軸を安価に提供できるとともに、これを用いたフィルタ掃除ユニットも安価に提供できる。そのため、駆動軸およびフィルタ掃除ユニットは、家庭用および業務用の空気調和機に広く適用できる。
According to the present invention, the drive shaft of the filter can be provided at low cost, and the filter cleaning unit using the drive shaft can also be provided at low cost. Therefore, the drive shaft and the filter cleaning unit can be widely applied to domestic and commercial air conditioners.
１ 室内機
２ 本体
２ａ 前面開口部
２ｂ 上面開口部
３ 前面パネル
４ 熱交換器
５ ファン
６ 吹出口
７ 上下風向変更羽根
８ 左右風向変更羽根
９ 通風路
１０，１０１ フィルタ
１１ フィルタ掃除ユニット
１２ フィルタ保持部
１２Ａ 通常ガイド部
１２Ｂ 折返しガイド部
１２Ｃ 合流部分
１４ 駆動軸
１４ａ 第１駆動軸部材
１４ｂ 第２駆動軸部材
１５ ブラシ
１６ 塵受け部材
１７，１０５ 軸部
１７ａ 第１軸部
１７ａａ，１７ｂａ 曲面部
１７ａｂ，１７ｂｂ 平面部
１７ｂ 第２軸部
１８，１０６ 歯車部
１８ａ 第１歯車
１８ｂ 第２歯車
１９ ラック歯（突起部）
２０ ブレード
２１ 凸部
２２ 凹部
２３ 第一補強リブ
２４ 第二補強リブ
１０２，１０３ フィルタ保持枠
１０４ フィルタ駆動軸 1Indoor Unit 2 Main Body 2a Front Opening 2b Top Opening 3 Front Panel 4 Heat Exchanger 5 Fan 6 Outlet 7 Up/Down Air Direction Changing Blade 8 Left/Right Air Direction Changing Blade 9 Ventilation Path 10, 101 Filter 11 Filter Cleaning Unit 12 Filter Holding Unit 12A Normal guide part 12B Folding guide part 12C Merging part 14 Drive shaft 14a First drive shaft member 14b Second drive shaft member 15 Brush 16 Dust receiving member 17,105 Shaft part 17a First shaft part 17aa, 17ba Curved surface part 17ab, 17bb Plane part 17b Second shaft part 18,106 Gear part 18a First gear 18b Second gear 19 Rack tooth (projection part)
20blade 21 convex part 22 concave part 23 first reinforcing rib 24 second reinforcing rib 102, 103 filter holding frame 104 filter drive shaft
２ 本体
２ａ 前面開口部
２ｂ 上面開口部
３ 前面パネル
４ 熱交換器
５ ファン
６ 吹出口
７ 上下風向変更羽根
８ 左右風向変更羽根
９ 通風路
１０，１０１ フィルタ
１１ フィルタ掃除ユニット
１２ フィルタ保持部
１２Ａ 通常ガイド部
１２Ｂ 折返しガイド部
１２Ｃ 合流部分
１４ 駆動軸
１４ａ 第１駆動軸部材
１４ｂ 第２駆動軸部材
１５ ブラシ
１６ 塵受け部材
１７，１０５ 軸部
１７ａ 第１軸部
１７ａａ，１７ｂａ 曲面部
１７ａｂ，１７ｂｂ 平面部
１７ｂ 第２軸部
１８，１０６ 歯車部
１８ａ 第１歯車
１８ｂ 第２歯車
１９ ラック歯（突起部）
２０ ブレード
２１ 凸部
２２ 凹部
２３ 第一補強リブ
２４ 第二補強リブ
１０２，１０３ フィルタ保持枠
１０４ フィルタ駆動軸 1
20
Claims (6)
- 実質的に半円状の断面を有する第１軸部と、前記第１軸部の一端に設けられる第１歯車と、を含む第１駆動軸部材と、
実質的に半円状の断面を有する第２軸部と、前記第２軸部の一端に設けられる第２歯車と、を含む第２駆動軸部材と、を備え、
前記第１軸部および前記第２軸部は、
実質的に半円状の断面の弧を含む曲面部と、実質的に半円状の断面の弦を含む平面部と、を有し、
前記第１駆動軸部材の前記平面部と前記第２駆動軸部材の前記平面部とを、互いに重ね合わすことにより、実質的に円柱状で構成される軸部を有する、
駆動軸。 A first drive shaft member including a first shaft portion having a substantially semicircular cross section, and a first gear provided at one end of the first shaft portion,
A second drive shaft member including a second shaft portion having a substantially semicircular cross section, and a second gear provided at one end of the second shaft portion,
The first shaft portion and the second shaft portion are
A curved surface portion including an arc having a substantially semicircular cross section, and a flat surface portion including a chord having a substantially semicircular cross section,
A plane portion of the first drive shaft member and a plane portion of the second drive shaft member are overlapped with each other to have a shaft portion that is substantially cylindrical.
Drive shaft. - 前記軸部は、中空形状である、
請求項１に記載の駆動軸。 The shaft portion has a hollow shape,
The drive shaft according to claim 1. - 前記第１歯車は、第１駆動軸部材において、円周全域に設けられる歯を有する、
請求項１または請求項２のいずれか１項に記載の駆動軸。 The first gear has teeth provided on the entire circumference of the first drive shaft member,
The drive shaft according to any one of claims 1 and 2. - 前記第２歯車は、第２駆動軸部材において、円周全域に設けられる歯を有する、
請求項１から請求項３のいずれか１項に記載の駆動軸。 The second gear has teeth provided on the entire circumference of the second drive shaft member,
The drive shaft according to any one of claims 1 to 3. - 前記第１軸部の前記平面部および前記第２軸部の前記平面部の各々は、凸部と凹部とを備え、
前記第１軸部の前記凸部と前記第２軸部の前記凹部とが嵌合するように構成される、
請求項１から請求項４のいずれか１項に記載の駆動軸。 Each of the flat surface portion of the first shaft portion and the flat surface portion of the second shaft portion includes a convex portion and a concave portion,
The convex portion of the first shaft portion and the concave portion of the second shaft portion are configured to be fitted to each other.
The drive shaft according to any one of claims 1 to 4. - 請求項１から請求項５のいずれか１項に記載の駆動軸と、
前記第１歯車および前記第２歯車と噛み合う突起部を一方の面に有するフィルタと、
前記フィルタをスライド可能に保持するフィルタ保持部と、を備える、
フィルタ掃除ユニット。 A drive shaft according to any one of claims 1 to 5,
A filter having a protrusion on one surface that meshes with the first gear and the second gear;
A filter holder that slidably holds the filter,
Filter cleaning unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-028977 | 2019-02-21 | ||
| JP2019028977A JP7300577B2 (en) | 2019-02-21 | 2019-02-21 | Drive shaft and filter cleaning unit using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020171027A1 true WO2020171027A1 (en) | 2020-08-27 |
Family
ID=72143682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2020/006136 WO2020171027A1 (en) | 2019-02-21 | 2020-02-17 | Drive shaft and filter cleaning unit using same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7300577B2 (en) |
| WO (1) | WO2020171027A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121217A (en) * | 1982-12-27 | 1984-07-13 | Canon Inc | Drive shaft of rotating body |
| JPS6363283B2 (en) * | 1980-01-30 | 1988-12-07 | ||
| JP2008138927A (en) * | 2006-12-01 | 2008-06-19 | Matsushita Electric Ind Co Ltd | Ceiling-embedded air conditioner |
| US20100278586A1 (en) * | 2007-06-28 | 2010-11-04 | European Aeronautic Defence And Space Company Eads France | Structural connecting rod made of a composite and process for producing such a connecting rod |
| JP2016527100A (en) * | 2013-06-05 | 2016-09-08 | ハチンソン | Composite connecting rod, method for manufacturing such a rod, and aircraft ceiling or floor structure incorporating the same |
| CN205939630U (en) * | 2016-07-15 | 2017-02-08 | 广东美的制冷设备有限公司 | Machine in filter screen driving piece and air conditioning |
| JP2018066563A (en) * | 2018-02-06 | 2018-04-26 | 三菱電機株式会社 | Indoor equipment of air conditioner |
| WO2019030861A1 (en) * | 2017-08-09 | 2019-02-14 | 三菱電機株式会社 | Air conditioner indoor unit and air conditioner equipped with same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6363283B1 (en) | 2017-09-26 | 2018-07-25 | 宇部樹脂加工株式会社 | Protective cover |
-
2019
- 2019-02-21 JP JP2019028977A patent/JP7300577B2/en active Active
-
2020
- 2020-02-17 WO PCT/JP2020/006136 patent/WO2020171027A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6363283B2 (en) * | 1980-01-30 | 1988-12-07 | ||
| JPS59121217A (en) * | 1982-12-27 | 1984-07-13 | Canon Inc | Drive shaft of rotating body |
| JP2008138927A (en) * | 2006-12-01 | 2008-06-19 | Matsushita Electric Ind Co Ltd | Ceiling-embedded air conditioner |
| US20100278586A1 (en) * | 2007-06-28 | 2010-11-04 | European Aeronautic Defence And Space Company Eads France | Structural connecting rod made of a composite and process for producing such a connecting rod |
| JP2016527100A (en) * | 2013-06-05 | 2016-09-08 | ハチンソン | Composite connecting rod, method for manufacturing such a rod, and aircraft ceiling or floor structure incorporating the same |
| CN205939630U (en) * | 2016-07-15 | 2017-02-08 | 广东美的制冷设备有限公司 | Machine in filter screen driving piece and air conditioning |
| WO2019030861A1 (en) * | 2017-08-09 | 2019-02-14 | 三菱電機株式会社 | Air conditioner indoor unit and air conditioner equipped with same |
| JP2018066563A (en) * | 2018-02-06 | 2018-04-26 | 三菱電機株式会社 | Indoor equipment of air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7300577B2 (en) | 2023-06-30 |
| JP2020134037A (en) | 2020-08-31 |
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