JP4566112B2 - Clothes dryer - Google Patents

Clothes dryer Download PDF

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JP4566112B2
JP4566112B2 JP2005312477A JP2005312477A JP4566112B2 JP 4566112 B2 JP4566112 B2 JP 4566112B2 JP 2005312477 A JP2005312477 A JP 2005312477A JP 2005312477 A JP2005312477 A JP 2005312477A JP 4566112 B2 JP4566112 B2 JP 4566112B2
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drum
air
clothes
drying chamber
clothing
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JP2007117337A (en
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正宏 藤原
利明 田中
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三洋電機株式会社
三洋アクア株式会社
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本発明はドラム式の衣類乾燥機に関し、さらに詳しくは、クリーニング現場で使用するのに好適な衣類乾燥機に関する。   The present invention relates to a drum-type clothes dryer, and more particularly to a clothes dryer suitable for use at a cleaning site.
クリーニング店舗等の業務用途としては、例えば特許文献1に記載のような構成のドラム式衣類乾燥機が利用されている。即ち、この種の衣類乾燥機では、水平軸を中心に回転自在であるドラムを内装した乾燥室内にスチームラジエータ等の熱源で加熱した空気を送り込み、ドラム内で濡れた衣類と熱交換することで湿った空気を乾燥室内から取り出してリントフィルタを通して機外に排出する。乾燥室内への加熱空気の吹出口は乾燥室の後部上方に設けられ、乾燥室内からの湿った空気の吸込口は、ドラムの軸方向に上記吹出口とは離れている乾燥室の前部下方に設けられている。これにより、吹出口から乾燥室内に送り込まれた加熱空気はドラム周面に多数穿孔された通気孔からドラム内に流入してドラム内を通過し易くなっている。   For business use in a cleaning store or the like, for example, a drum-type clothes dryer configured as described in Patent Document 1 is used. That is, in this type of clothes dryer, air heated by a heat source such as a steam radiator is fed into a drying chamber equipped with a drum that is rotatable about a horizontal axis, and heat exchange with wet clothes is performed in the drum. Remove the humid air from the drying chamber and discharge it through the lint filter. A heated air outlet into the drying chamber is provided above the rear of the drying chamber, and a suction port for wet air from the drying chamber is below the front of the drying chamber, which is separated from the outlet in the axial direction of the drum. Is provided. Thereby, the heated air sent into the drying chamber from the blowout port flows into the drum from the air holes perforated on the drum peripheral surface and easily passes through the drum.
さらにまた、特許文献1に記載の衣類乾燥機では、前述のようなドラム内への加熱空気の流入を促すため、乾燥室内にあってドラムの軸方向で吹出口と吸込口との間に、ドラム外周面と乾燥室との間の空隙を狭めるように隔壁が周設されており、これによって乾燥室の前部と後部とでドラム外を通過する空気の流通が制限され、結果的にドラム内に加熱空気が通り易くなっている。   Furthermore, in the clothes dryer described in Patent Document 1, in order to promote the inflow of heated air into the drum as described above, between the air outlet and the inlet in the axial direction of the drum in the drying chamber, A partition wall is provided so as to narrow the gap between the outer peripheral surface of the drum and the drying chamber, thereby restricting the flow of air passing outside the drum at the front and rear portions of the drying chamber. Heated air easily passes inside.
しかしながら、上記従来の衣類乾燥機でも次のような問題がある。業務用途では大量の衣類を処理するために、殆ど常にドラム内に定格容量に近い量の衣類が投入される。乾燥運転の初期にはドラム内の衣類は濡れた状態にあるため、その嵩は小さく、ドラム内には多くの空間があるからドラムの回転に伴って衣類は移動する。具体的には、ドラム内に凸設されたバッフルによりドラム回転に伴い衣類は持ち上げられ、或る程度持ち上げられるとドラム底部に落下する、という移動を繰り返す。衣類は全体的にドラムの底部側に集まっており、ドラム内の上部空間は空いている。そのため、乾燥室上部にある吹出口から吐き出された加熱空気は回転に伴って上方に位置している通気孔を通してドラム内に容易に流入する。   However, the conventional clothes dryer has the following problems. In business applications, in order to process a large amount of clothing, an amount of clothing close to the rated capacity is almost always put in the drum. Since the clothes in the drum are in a wet state at the beginning of the drying operation, the bulk is small, and since there is a lot of space in the drum, the clothes move as the drum rotates. Specifically, the clothes are lifted as the drum rotates by the baffles provided in the drum, and the movement is repeated when the clothes are lifted to a certain extent. The clothing is generally gathered on the bottom side of the drum, and the upper space in the drum is vacant. Therefore, the heated air discharged from the blower outlet in the upper part of the drying chamber easily flows into the drum through the vent hole located at the upper side as it rotates.
ところが、乾燥が進行するに伴い、ドラム内の各衣類は膨らんでゆくため嵩が大きくなる。そのため、ドラム内空間は狭くなって衣類は移動しにくくなり、ドラム内の上部空間も膨らんだ衣類で占められる。すると、ドラム周面に全周に亘って穿設されている通気孔が衣類で塞がれるようになり、通気孔を通した通気性が悪くなる。即ち、ドラム内での空気の流量抵抗が急激に増大し、ドラム内に加熱空気が入りにくくなる。そのため、衣類の乾燥不良や乾燥むらなどが起こり易くなってしまう。こうした不具合を解消するには、衣類が乾燥してきて膨らんでもドラム内に十分な空間が確保できるように、始めに投入する衣類の量を抑える等の配慮が必要となるが、そうすると処理効率が落ちてしまうという問題がある。   However, as drying progresses, each garment in the drum swells and becomes bulky. For this reason, the space in the drum becomes narrow and the clothes are difficult to move, and the upper space in the drum is occupied by the swelled clothes. As a result, the air vents drilled on the entire circumference of the drum are closed with clothing, and the air permeability through the air vents is deteriorated. That is, the flow resistance of air in the drum increases rapidly, and it becomes difficult for heated air to enter the drum. For this reason, poor drying of clothes or uneven drying easily occur. In order to eliminate such problems, it is necessary to consider the amount of clothing that is initially introduced so that sufficient space can be secured in the drum even if the clothing dries out and swells. There is a problem that it ends up.
特開2002−35491号公報(図1及び0019段〜0021段)JP 2002-35491 A (FIG. 1 and stages 0019 to 0021)
本発明は上記課題を解決するために成されたものであり、その主な目的とするところは、乾燥が進行して衣類の嵩が増した場合でもドラム内に加熱空気を円滑に送り込めるようにすることによって、衣類の乾燥効率を向上させるとともに乾燥むらを抑えることをができる衣類乾燥機を提供することにある。   The present invention has been made to solve the above-described problems, and the main object of the present invention is to allow heated air to be smoothly fed into a drum even when drying progresses and the bulk of clothing increases. Accordingly, it is an object of the present invention to provide a clothes dryer capable of improving the drying efficiency of clothes and suppressing uneven drying.
上記課題を解決するために成された本発明は、前後方向に延伸する水平な軸を中心に回転自在であって、周面が略円筒形状で前端面に衣類投入開口を有し内部に乾燥対象の衣類を収容するドラムと、該ドラムを内装する乾燥室と、前記乾燥室の後方上部に開口した吹出口から該乾燥室内に空気を送り込むための吸気路と、前記乾燥室に面し前記吹出口よりも前方の下部に設けられた吸込口から前記乾燥室内の空気を排出するための排気路と、前記吸気路内又は前記排気路内のいずれかにあって、吸気路、乾燥室及び排気路を通る空気流を生起する空気流生起手段と、前記吸気路内にあって空気を加熱する加熱手段と、を備え、
多数の通気孔が穿設された前記ドラムの周面の内面側に、衣類の撹拌を促すための前後方向に延伸する断面略二等辺三角形状のバッフルを複数備えるとともに、回転方向に隣接する前記バッフル間で、前記吹出口が位置している後方側にのみ、内方に突出しその高さが後方から前方に向かうに従い低くなるように形成され且つ回転方向の厚みが前記バッフルにあってドラム内面に接した部位よりも薄い突部を備え、該突部によりドラム回転時に衣類を該ドラムの内面から遠ざけて前記吹出口に相対するドラム周面の通気孔の開口を確保するようにしたことを特徴としている。
The present invention, which has been made to solve the above-mentioned problems, is rotatable around a horizontal axis extending in the front-rear direction, has a substantially cylindrical shape, and has a clothing input opening at the front end surface and is dry inside. A drum that houses the clothing of interest, a drying chamber that houses the drum, an air intake passage for sending air into the drying chamber from a blow-out opening that opens at the upper rear of the drying chamber, and facing the drying chamber An exhaust passage for discharging the air in the drying chamber from a suction port provided at a lower part in front of the air outlet, and either in the intake passage or in the exhaust passage; An air flow generating means for generating an air flow through the exhaust path, and a heating means for heating the air in the intake path,
A plurality of baffles having a substantially isosceles cross section extending in the front-rear direction for facilitating agitation of clothes are provided on the inner surface side of the peripheral surface of the drum in which a large number of air holes are perforated, and adjacent to the rotation direction. Between the baffles, only the rear side where the air outlet is located is formed so as to protrude inward, and its height decreases as it goes from the rear to the front, and the thickness in the rotation direction is on the baffle and the drum inner surface A protrusion that is thinner than the portion in contact with the drum, and the protrusion keeps the garment away from the inner surface of the drum during rotation of the drum so as to secure the opening of the air vent on the drum circumferential surface facing the outlet. It is a feature.
なお、発明に係る衣類乾燥機では、空気の流通経路の構成として、吸気路の入口と排気路の出口とがともに外部に開放した排気型の構成、吸気路の入口と排気路の出口とが連結され排気路内に除湿装置が設けられた循環型の構成、或いは、両者を組み合わせた構成のいずれとしてもよい。
In the clothes dryer according to the present invention, the configuration of the air flow path is an exhaust type configuration in which both the inlet of the intake passage and the outlet of the exhaust passage are open to the outside, the inlet of the intake passage and the outlet of the exhaust passage. Are connected to each other and a dehumidifying device is provided in the exhaust passage, or a combination of both.
発明に係る衣類乾燥機ではドラム周壁に多数の通気孔が穿設されており、乾燥運転に際し、その当初の衣類が十分に湿っているときには、吹出口から乾燥室に供給された加熱空気は主として通気孔を通してドラム内に流入し、ドラム内で衣類から吐き出された水蒸気を含む湿った空気も通気孔を通してドラム外に出て吸込口を経て排気路に流れる。ドラム内の衣類の乾燥が進行してくると前述のように衣類は膨らんで嵩が増すが、吹出口が存在するドラム後方側では上記突部により衣類が内方側に押されるので、膨らんだ衣類がドラム内周面に密着しにくく通気孔の開口を確保することができる。
In the clothes dryer according to the present invention has been drilled a number of vent holes in the drum wall, upon drying operation, that when the original garment is wet enough, the heat supplied to the drying chamber through the outlet Air mainly flows into the drum through the vent hole, and moist air including water vapor discharged from the clothing in the drum also flows out of the drum through the vent hole and flows into the exhaust passage through the suction port. Advanced drying of clothes in the drum is coming and clothing bulk increases bulged as described above, but because a drum rear side which is blowing outlet exists garment by the projection is pushed inwardly, puffed It is difficult for the clothing to be in close contact with the inner peripheral surface of the drum, and the opening of the air holes can be secured.
このように発明に係る衣類乾燥機によれば、衣類の乾燥が進行してきて膨らんだ衣類によりドラム周面の通気孔が塞がれ易い状況になったときでも、少なくとも吹出口近傍では通気孔の開口を確保することができるので、その通気孔からドラム内に加熱空気が流入し得る。これにより、衣類の乾燥が進行してきて各衣類が膨らんでもドラム内の衣類に加熱空気を当てることができ、衣類の乾燥を良好に行うとともに乾燥むらの発生を軽減することができる。
As described above, according to the clothes dryer according to the present invention, even when the drying of the clothes has progressed and the swelled clothes are likely to block the ventilation holes on the drum peripheral surface, at least in the vicinity of the air outlet, the ventilation holes are provided. Therefore, the heated air can flow into the drum from the vent hole. Thereby, even if clothing drying progresses and each clothing swells, heated air can be applied to the clothing in the drum, and the clothing can be dried well and the occurrence of uneven drying can be reduced.
記突部はその高さが高すぎるとドラム内空間で衣類の撹拌や移動を妨げ却って乾燥むらの原因となる場合があるが、その高さが後方から前方に向かうに従い低くなるように形成されていることにより、突部が衣類の移動を邪魔しにくく、且つ衣類が膨らんだときに上述のように吹出口近傍の通気孔の開口を確保するという作用・効果も達成できる。
Although the upper Symbol protrusion may become a cause of rather uneven drying impede agitation and movement of the clothes in the drum space and the height is too high, formed so that the height becomes lower as it goes from the rear to the front which do more Rukoto, projections hardly disturb the movement of the garment, and the action and effect of the garment to secure the opening of the air outlet near the vent hole as described above when inflated can also be achieved.
[第1実施例]
発明に係る衣類乾燥機の一実施例(第1実施例)を図1〜図3に基づいて説明する。図1は本実施例の衣類乾燥機の概略側面縦断面図、図2はこの衣類乾燥機の正面概略縦断面図、図3は本実施例の衣類乾燥機の特徴的な動作を説明するための模式図である。
[First embodiment]
An embodiment (first embodiment) of a clothes dryer according to the present invention will be described with reference to FIGS. FIG. 1 is a schematic side sectional view of a clothes dryer according to the present embodiment, FIG. 2 is a schematic front sectional view of the clothes dryer, and FIG. 3 is a diagram for explaining the characteristic operation of the clothes dryer according to the present embodiment. FIG.
この衣類乾燥機の外形を成す筐体1の略中央に形成された略円筒形状の乾燥室3の内部には、略水平で前後方向に延伸する主軸5により片持支持された周面円筒形状のドラム4が配置されている。ドラム4はその前端面に大きな開口が衣類投入口41として設けられ、衣類は筐体1前面のドア2を開放して衣類投入口41からドラム4内に投入される。主軸5は筐体1の後壁に設けられた軸受6により回転自在に支承され、該軸受6より後方に突出した主軸5の先端には大プーリ7が取り付けられている。筐体1の背後に設置された駆動源としてのドラムモータ8の回転駆動力はモータプーリ9、タイミングベルト10を介して大プーリ7に伝達され、これによりドラム4は主軸5を中心に回転駆動される。なお、ダイレクトドライブ方式を採用する等の駆動方式の適宜の変更が可能であることは当然である。   Inside the substantially cylindrical drying chamber 3 formed substantially at the center of the casing 1 that forms the outer shape of the clothes dryer, a cylindrical cylindrical surface that is cantilevered by a main shaft 5 that extends substantially in the front-rear direction. The drum 4 is arranged. The drum 4 is provided with a large opening as a clothing input port 41 on the front end surface thereof, and the clothing is input into the drum 4 from the clothing input port 41 by opening the door 2 on the front surface of the housing 1. The main shaft 5 is rotatably supported by a bearing 6 provided on the rear wall of the housing 1, and a large pulley 7 is attached to the tip of the main shaft 5 protruding rearward from the bearing 6. The rotational driving force of a drum motor 8 as a driving source installed behind the housing 1 is transmitted to the large pulley 7 via the motor pulley 9 and the timing belt 10, whereby the drum 4 is rotationally driven around the main shaft 5. The Needless to say, it is possible to appropriately change the drive system such as adopting the direct drive system.
乾燥室3の後部上面には吹出口11が設けられ、乾燥室3の上部には後方に開放した吸気口13を入口とし上記吹出口11を出口とする吸気路12が配設され、その内部には吸気口13から取り込まれた空気を加熱するための空気加熱手段としての加熱源14が設置されている。業務用途の衣類乾燥機の場合、加熱源14は高温の蒸気が流通されるスチームラジエータであることが多いが、加熱方式はこれに限るものではなく電気ヒータや都市ガス又はLPガスを用いたガスヒータ等を利用してもよい。   An air outlet 11 is provided on the upper surface of the rear part of the drying chamber 3, and an air intake passage 12 is provided at the upper part of the drying chamber 3, with an air inlet 13 opened rearward and the air outlet 11 as an outlet. Is provided with a heating source 14 as air heating means for heating the air taken in from the intake port 13. In the case of a commercial clothes dryer, the heating source 14 is often a steam radiator through which high-temperature steam is circulated. However, the heating method is not limited to this, and a gas heater using an electric heater, city gas, or LP gas is used. Etc. may be used.
ドラム4の軸方向(この例では前後方向)に上記吹出口11と離れた位置である乾燥室3の前部下面には吸込口15が配置され、乾燥室3の下部には、この吸込口15を入口とし後方に開放した排気口17を出口とする排気路16が形成されている。この排気路16内には、衣類から出る糸屑等を捕集するためのリントフィルタ18とブロアモータ20により回転駆動されるブロア19とが設置されている。而して、ブロアモータ20によりブロア19が所定方向に回転駆動されると、吸気口13から吸気路12内に外気が吸引され、吸気路12→吹出口11→乾燥室3→吸込口15→排気路16を通過して排気口17から外部へと排出される空気流が生起される。即ち、ブロア19及びブロアモータ20が本発明における空気流生起手段に相当する。その際に加熱源14が作動していれば、吹出口11から乾燥室3に供給される空気は加熱空気となる。   A suction port 15 is disposed on the lower surface of the front portion of the drying chamber 3 that is located away from the air outlet 11 in the axial direction of the drum 4 (in this example, the front-rear direction). An exhaust passage 16 is formed with an outlet 15 being an outlet and an outlet 17 opened rearward. A lint filter 18 and a blower 19 that is rotationally driven by a blower motor 20 are installed in the exhaust passage 16 to collect lint and the like from clothes. Thus, when the blower 19 is driven to rotate in a predetermined direction by the blower motor 20, the outside air is sucked into the intake passage 12 from the intake port 13, and the intake passage 12 → the outlet 11 → the drying chamber 3 → the intake port 15 → the exhaust. An air flow that passes through the path 16 and is discharged from the exhaust port 17 to the outside is generated. That is, the blower 19 and the blower motor 20 correspond to the air flow generating means in the present invention. If the heating source 14 is operating at that time, the air supplied from the blower outlet 11 to the drying chamber 3 becomes heated air.
ドラム4の円筒形状の周面には多数の小さな通気孔42が穿設されている。また、ドラム4の内周面にはその前端面付近から後端面付近まで、衣類の撹拌を促すための断面略二等辺三角形状のバッフル43が120°間隔離して3個配設されている。さらに、この衣類乾燥機の特徴的な構成として、ドラム4内周面の周方向に隣接するバッフル43の間には、ドラム4内周面の後方側で内方に突出する突部44がバッフル43と合わせてほぼ等角度間隔となるように6個設けられている。この各突部44のドラム4内方側に向いた面は、ドラム4の後方から前方に向かうに従いその高さが低くなるように傾斜している。   A large number of small air holes 42 are formed in the cylindrical peripheral surface of the drum 4. Further, three baffles 43 each having a substantially isosceles triangle cross section for facilitating the agitation of clothing are arranged on the inner peripheral surface of the drum 4 from the vicinity of the front end surface to the vicinity of the rear end surface, separated by 120 °. Further, as a characteristic configuration of the clothes dryer, a protrusion 44 protruding inward on the rear side of the inner peripheral surface of the drum 4 is provided between the baffles 43 adjacent to the inner peripheral surface of the drum 4 in the circumferential direction. 6 are provided so as to be substantially equiangularly spaced from each other. The surface of each protrusion 44 facing the inner side of the drum 4 is inclined so that its height decreases from the rear to the front of the drum 4.
バッフル43はドラム4の回転に伴い衣類を上に持ち上げつつ途中で落下させることにより、衣類の撹拌を促進することを主たる目的としている。そのために、バッフル43はドラム4の周壁の前後方向に長く延伸した形状である。これに対し、突部44は後述するようにドラム4の後部側、つまりドラム4の回転に伴い乾燥室3上部の吹出口11に相対する範囲である部分において衣類がドラム4内周面から離れるように、衣類をドラム4内方に押すためのものである。この突部44は基本的には撹拌等による衣類の移動をできるだけ妨げないことが望ましく、そのために最低限必要なドラム4の後部側にのみ配設されている。また、ドラム4内の内部空間を狭めず且つ通気孔42の数も少なくしないように、その幅方向の厚みをバッフル43よりも薄くしている。   The main purpose of the baffle 43 is to promote the agitation of clothes by lifting the clothes upward and dropping them halfway along with the rotation of the drum 4. Therefore, the baffle 43 has a shape that extends long in the front-rear direction of the peripheral wall of the drum 4. On the other hand, the protrusion 44 is separated from the inner peripheral surface of the drum 4 at the rear side of the drum 4 as described later, that is, at a portion corresponding to the air outlet 11 at the top of the drying chamber 3 as the drum 4 rotates. As described above, the garment is pushed inward of the drum 4. Basically, it is desirable that the protrusions 44 do not hinder the movement of clothes by stirring or the like as much as possible, and are disposed only on the rear side of the drum 4 that is necessary for this purpose. Further, the thickness in the width direction is made thinner than that of the baffle 43 so that the internal space in the drum 4 is not narrowed and the number of vent holes 42 is not reduced.
本実施例の衣類乾燥機における乾燥運転時の特徴的な動作について説明する。作業者は例えば他の洗濯機で洗濯済みの衣類を衣類投入口41からドラム4内に投入し、ドア2を閉めて図示しない操作部により所定の操作を行う。これにより運転が開始され、ドラムモータ8、ブロアモータ20がそれぞれ駆動され、加熱源14であるスチームラジエータに高温蒸気が供給される。ブロアモータ20によりブロア19が回転駆動され、加熱源14が空気を加熱することで、上述したように乾燥室3に加熱空気が供給される。   A characteristic operation during the drying operation in the clothes dryer of the present embodiment will be described. For example, the worker puts clothes that have been washed in another washing machine into the drum 4 from the clothes insertion port 41, closes the door 2, and performs a predetermined operation by an operation unit (not shown). Thus, the operation is started, the drum motor 8 and the blower motor 20 are driven, and high-temperature steam is supplied to the steam radiator as the heating source 14. The blower 19 is rotationally driven by the blower motor 20 and the heating source 14 heats the air, whereby the heating air is supplied to the drying chamber 3 as described above.
ドラム4はドラムモータ8の回転駆動力により所定の回転速度(例えばドラム4の内径が650mmである場合に45rpm〜55rpm程度の範囲の速度)で回転され、それによりドラム4内の衣類は撹拌される。乾燥運転の当初には、ドラム4内に収容されている衣類は水(或いは溶剤)を吸い込んでいるため、一枚一枚の衣類の嵩は小さくなっている。そのため、図3(a)に示すように、ドラム4内では衣類が移動する空間が十分に確保されており、特にドラム4内の上部空間は空いている。したがって、吹出口11から乾燥室3に送り込まれた加熱空気はドラム4の周面の通気孔42から円滑にドラム4内部へと流入し、この加熱空気はドラム4内を後方側から前方へと進み、その間に衣類と十分に熱交換を行って衣類から水蒸気を蒸発させる。こうした水蒸気を多量に含む湿った空気は乾燥室3前部にあって通気孔42を通してドラム4外側へと出て、吸込口15から排気路16へと進む。このように、乾燥運転の前半期間、つまり衣類が未だ十分に湿った状態では、乾燥室3内において加熱空気はドラム4内を確実に通過するので、衣類の乾燥は効率的に進む。   The drum 4 is rotated at a predetermined rotation speed (for example, a speed in a range of about 45 rpm to 55 rpm when the inner diameter of the drum 4 is 650 mm) by the rotational driving force of the drum motor 8, whereby the clothes in the drum 4 are agitated. The At the beginning of the drying operation, the clothes accommodated in the drum 4 suck in water (or solvent), so that the bulk of each piece of clothes is small. Therefore, as shown in FIG. 3A, a sufficient space for moving clothes is secured in the drum 4, and in particular, the upper space in the drum 4 is vacant. Therefore, the heated air sent into the drying chamber 3 from the blower outlet 11 smoothly flows into the drum 4 from the vent hole 42 on the peripheral surface of the drum 4, and this heated air passes through the drum 4 from the rear side to the front side. In the meantime, the water vapor is evaporated from the clothing by sufficiently exchanging heat with the clothing. Such moist air containing a large amount of water vapor is in the front part of the drying chamber 3, exits to the outside of the drum 4 through the vent hole 42, and proceeds from the suction port 15 to the exhaust passage 16. In this way, in the first half of the drying operation, that is, in a state where the clothes are still sufficiently wet, the heated air surely passes through the drum 4 in the drying chamber 3, so that the drying of the clothes proceeds efficiently.
乾燥運転の時間経過に伴って衣類の乾燥が進行してくるとドラム4内で各衣類が膨らんで嵩が増す。すると、ドラム4内の上部空間も衣類が占めるようになり、図3(b)に示すようにドラム4の前部では衣類がドラム4上部側の内周面に接触するようになる。これに対し、ドラム4の後部ではドラム4内周面に設けられている突部44により衣類はドラム4の内方に押されるため、ドラム4内周面に近付きにくくなっている。特に乾燥が進行してきて繊維の隙間に空気を含むようになった衣類は突部44の側面等にあまり張り付かないので、周方向に隣接する突部44の間の空間には衣類が入り込みにくい。そのため、吹出口11の直下に位置するドラム4周面の通気孔42は衣類で塞がれず、加熱空気はドラム4内に円滑に流入する。   As the drying of the clothing progresses with the lapse of time of the drying operation, each clothing swells in the drum 4 and the volume increases. Then, clothing also occupies the upper space in the drum 4, and the clothing comes into contact with the inner peripheral surface on the drum 4 upper side at the front portion of the drum 4 as shown in FIG. On the other hand, since the clothes are pushed inward of the drum 4 by the protrusion 44 provided on the inner peripheral surface of the drum 4 at the rear portion of the drum 4, it is difficult to approach the inner peripheral surface of the drum 4. In particular, clothing that has progressed in drying and contains air in the gaps between the fibers does not stick so much to the side surfaces of the projections 44, so that the clothing is unlikely to enter the space between the projections 44 adjacent in the circumferential direction. . Therefore, the vent holes 42 on the circumferential surface of the drum 4 located immediately below the air outlet 11 are not blocked by clothing, and the heated air flows smoothly into the drum 4.
各衣類が膨らんだことによりドラム4内の空間は狭いが、前述のように各洗濯物の繊維の隙間は開きぎみになっているたため、一旦ドラム4内に流入した加熱空気はこうした衣類の繊維の隙間や衣類同士の間の狭い空間を抜けようとする。これによって、衣類の乾燥は一層促進されることになる。このように本実施例の衣類乾燥機では、乾燥運転の後半に衣類が膨らんできても、ドラム4内に加熱空気を円滑に送り込んで衣類の乾燥を促進させ、乾燥むらの発生も軽減することができる。そして、例えば所定の運転時間が経過したならば、ドラムモータ8、ブロアモータ20は停止されて運転が終了する。もちろん、衣類の温度を下げるためのクーリング運転などを行ってもよいことは当然である。   Although the space in the drum 4 is narrow due to the swelling of each garment, the gap between the fibers of each laundry is open as described above. Try to pass through the gaps and narrow spaces between clothing. This further accelerates the drying of the clothes. As described above, in the clothes dryer of the present embodiment, even if the clothes swell in the latter half of the drying operation, the heated air is smoothly fed into the drum 4 to promote the drying of the clothes, and the occurrence of uneven drying is reduced. Can do. For example, when a predetermined operation time has elapsed, the drum motor 8 and the blower motor 20 are stopped, and the operation ends. Of course, it is natural that a cooling operation for lowering the temperature of the clothes may be performed.
[第2実施例]
次に、本発明には包含されないものの本発明に関連する衣類乾燥機の一実施例(第2実施例)を図4〜図6に基づいて説明する。図4は本実施例の衣類乾燥機の概略側面縦断面図、図5はこの衣類乾燥機の正面概略縦断面図、図6は本実施例の衣類乾燥機の特徴的な動作を説明するための模式図である。但し、既に説明した第1実施例の衣類乾燥機と同一の構成要素には同一符号を付して説明を省略する。
[Second Embodiment]
Next, an embodiment (second embodiment) of a clothes dryer which is not included in the present invention but is related to the present invention will be described with reference to FIGS. 4 is a schematic side sectional view of the clothes dryer of the present embodiment, FIG. 5 is a schematic front sectional view of the clothes dryer, and FIG. 6 is a diagram for explaining the characteristic operation of the clothes dryer of the present embodiment. FIG. However, the same components as those of the clothes dryer of the first embodiment already described are denoted by the same reference numerals and description thereof is omitted.
この第2実施例の衣類乾燥機の基本的な構成は第1実施例と同じである。両者の相違点について説明する。第1実施例では、ドラム4後部の内周面に突部44が設けられていたが、この第2実施例の衣類乾燥機ではそうした突部が存在しない代わりに、後方に向いたドラム4の閉塞端面の中央側つまり主軸5の周りでドラム4内方(つまり前方に)に向かって略裁頭円錐形状に膨出した膨出部45となっており、この膨出部45の裁頭部に相当する平面にも多数の通気孔46が本発明における補助通気孔として穿設されている。即ち、この衣類乾燥機では、ドラム4の周面のみならず、後端面にも通気孔が形成されている。   The basic configuration of the clothes dryer of the second embodiment is the same as that of the first embodiment. Differences between the two will be described. In the first embodiment, the protrusion 44 is provided on the inner peripheral surface of the rear part of the drum 4. However, in the clothes dryer of the second embodiment, such a protrusion does not exist, but the rear of the drum 4 facing backward is provided. A bulging portion 45 bulging in a substantially truncated cone shape around the center side of the closed end face, that is, around the main shaft 5 toward the inside of the drum 4 (that is, forward) is formed. A large number of vent holes 46 are also formed as auxiliary vent holes in the present invention on a plane corresponding to the above. That is, in this clothes dryer, ventilation holes are formed not only on the peripheral surface of the drum 4 but also on the rear end surface.
この第2実施例の衣類乾燥機において膨出部45は、上記第1実施例の衣類乾燥機の突部44と同様の作用、つまりドラム4内の衣類の乾燥が進行して膨らんできたときに、吹出口11に対向するドラム4周面において衣類が通気孔42を塞がないようにすることにある。その動作について図6を参照して説明する。   In the clothes dryer of the second embodiment, the bulging portion 45 has the same action as the projection 44 of the clothes dryer of the first embodiment, that is, when the garment in the drum 4 is dried and bulges. In addition, there is an attempt to prevent clothing from blocking the vent holes 42 on the peripheral surface of the drum 4 facing the air outlet 11. The operation will be described with reference to FIG.
前述したように乾燥運転の当初には、ドラム4内に収容されている衣類は水(或いは溶剤)を吸い込んでいるため、一枚一枚の衣類の嵩は小さい。そのため、図6(a)に示すように、ドラム4内では衣類が移動する空間が十分に確保されており、特にドラム4内の上部空間は空いている。したがって、吹出口11から乾燥室3に送り込まれた加熱空気はドラム4の周面の通気孔42ら円滑にドラム4内部へと流入し、この加熱空気はドラム4内を後方側から前方へと進み、その間に衣類と十分に熱交換を行って衣類から水蒸気を蒸発させる。こうした水蒸気を多量に含む湿った空気は乾燥室3前部にあって通気孔42を通してドラム4外側へと出て、吸込口15から排気路16へと進む。このように、乾燥運転の前半期間、つまり衣類が未だ十分に湿った状態では、乾燥室3内において加熱空気はドラム4内を確実に通過するので、衣類の乾燥は効率的に進む。   As described above, at the beginning of the drying operation, the clothes accommodated in the drum 4 suck in water (or a solvent), and therefore the bulk of each piece of clothes is small. Therefore, as shown in FIG. 6A, a sufficient space for moving clothes is secured in the drum 4, and in particular, the upper space in the drum 4 is vacant. Therefore, the heated air sent into the drying chamber 3 from the blower outlet 11 smoothly flows into the drum 4 through the vent holes 42 on the peripheral surface of the drum 4, and this heated air moves from the rear side to the front side in the drum 4. In the meantime, the water vapor is evaporated from the clothing by sufficiently exchanging heat with the clothing. Such moist air containing a large amount of water vapor is in the front part of the drying chamber 3, exits to the outside of the drum 4 through the vent hole 42, and proceeds from the suction port 15 to the exhaust passage 16. In this way, in the first half of the drying operation, that is, in a state where the clothes are still sufficiently wet, the heated air surely passes through the drum 4 in the drying chamber 3, so that the drying of the clothes proceeds efficiently.
乾燥運転の時間経過に伴って衣類の乾燥が進行してくるとドラム4内で各衣類が膨らんで嵩が増す。すると、ドラム4内の上部空間も衣類が占めるようになり、図6(b)に示すようにドラム4の前部では衣類がドラム4上部側の内周面に接触するようになる。これに対し、ドラム4の後部にも衣類は広がろうとするが、ドラム4の後面には膨出部45が膨出しているため衣類は前方に押され、さらにこの膨出部45の側周面とドラム4の内周面との間の隙間は狭いので、膨らんできて嵩が増してきた衣類はここには入りにくい。そのため、吹出口11の直下に位置するドラム4周面の通気孔42は衣類で塞がれにくくなり、この通気孔42から加熱空気はドラム4内に流入する。   As the drying of the clothing progresses with the lapse of time of the drying operation, each clothing swells in the drum 4 and the volume increases. Then, clothing also occupies the upper space in the drum 4, and the clothing comes into contact with the inner peripheral surface on the drum 4 upper side at the front portion of the drum 4 as shown in FIG. On the other hand, the clothes try to spread also at the rear part of the drum 4, but since the bulging part 45 bulges on the rear surface of the drum 4, the garment is pushed forward. Since the gap between the surface and the inner peripheral surface of the drum 4 is narrow, clothing that has been inflated and increased in volume is difficult to enter here. For this reason, the vent hole 42 on the circumferential surface of the drum 4 located immediately below the outlet 11 is not easily blocked by clothing, and the heated air flows into the drum 4 from the vent hole 42.
それでも衣類が膨らんだことにより膨らむ前よりは通気孔42を通した加熱空気の流入に対する流量抵抗が増加するが、その分、吹出口11から供給された加熱空気はドラム4の後面側に回り込んで膨出部45に形成された通気孔46からもドラム4内に流入する。通気孔46から入り込もうとする加熱空気は衣類をドラム4前方側に押すため、上述したように衣類が後方側に広がるのを抑える作用を補助することにもなる。さらにまた、このときドラム4の回転速度は低速ではあるものの、それでもドラム4内に存在している衣類には回転に伴う遠心力が作用し、その遠心力はドラム中心(軸)からの距離が離れるほど大きい。そのため、全体的には衣類はドラム4の周面に近づく方向に片寄る傾向にあり、ドラム4の軸近傍には空間が形成され易い。そのため、膨出部45の通気孔46から供給される加熱空気は比較的ドラム4内に入り易く、通気孔42を経て流入した加熱空気とともに衣類の繊維の隙間や衣類同士の間の狭い空間を抜けて、衣類の乾燥は一層促進されることになる。   Still, the flow resistance against the inflow of heated air through the vent hole 42 is increased as compared with that before the garment swells, but the heated air supplied from the outlet 11 circulates to the rear surface side of the drum 4. Then, the air also flows into the drum 4 from the vent hole 46 formed in the bulging portion 45. Since the heated air that is about to enter through the vent hole 46 pushes the garment toward the front side of the drum 4, as described above, it also assists the action of suppressing the garment from spreading toward the rear side. Furthermore, at this time, although the rotational speed of the drum 4 is low, a centrifugal force accompanying the rotation still acts on the clothes present in the drum 4, and the centrifugal force has a distance from the center (axis) of the drum. Bigger away. Therefore, as a whole, clothing tends to be shifted in the direction approaching the peripheral surface of the drum 4, and a space is easily formed in the vicinity of the axis of the drum 4. Therefore, the heated air supplied from the vent hole 46 of the bulging portion 45 is relatively easy to enter the drum 4, and together with the heated air that has flowed in through the vent hole 42, the gap between the clothing fibers and the narrow space between the clothing is formed. As a result, drying of the clothes is further promoted.
なお、上記第1実施例は一例であって、本発明の趣旨の範囲で適宜変形や修正、追加を行っても本願特許請求の範囲に包含されることは明らかである。
Note that the first actual施例is one example, appropriate changes and modifications within the spirit and scope of the present invention, the invention being included in the scope of the appended claims and then add.
なお、上記第1及び第2実施例はいずれも一例であって、本発明の趣旨の範囲で適宜変形や修正、追加を行っても本願特許請求の範囲に包含されることは明らかである。   It should be noted that the first and second embodiments are only examples, and it is obvious that any modifications, corrections, and additions that are appropriately made within the scope of the present invention are included in the scope of the claims of the present application.
例えば、上記実施例はいずれも吸気口13、排気口17がともに外部に開放された排気型の構成であるが、排気路16の出口を吸気路12の入口に接続して、吸気路12→乾燥室3→排気路16→吸気路12→…と空気が循環する経路を形成し、排気路16内には湿った空気中の水蒸気を凝縮・液化させる除湿装置を設けたような循環型の構成の衣類乾燥機にも本発明を適用できることは明らかである。もちろん、一部外気を利用しながら基本的には空気を循環させるような構成の衣類乾燥機でもよい。   For example, in the above-described embodiments, both the intake port 13 and the exhaust port 17 are of the exhaust type configuration opened to the outside, but the outlet of the exhaust passage 16 is connected to the inlet of the intake passage 12, and the intake passage 12 → A circulation path such as a drying chamber 3 → exhaust passage 16 → intake passage 12 →... Is circulated, and a dehumidifier for condensing and liquefying water vapor in the humid air is provided in the exhaust passage 16. It is obvious that the present invention can be applied to a clothes dryer having a configuration. Of course, the clothes dryer of the structure which circulates air fundamentally using some outside air may be used.
発明の一実施例(第1実施例)である衣類乾燥機の概略側面縦断面図。 BRIEF DESCRIPTION OF THE DRAWINGS The schematic side surface longitudinal cross-sectional view of the clothes dryer which is one Example (1st Example) of this invention. 第1実施例の衣類乾燥機の概略正面縦断面図。The schematic front longitudinal cross-sectional view of the clothes dryer of 1st Example. 第1実施例の衣類乾燥機における特徴的な動作を説明するための模式図。The schematic diagram for demonstrating the characteristic operation | movement in the clothes dryer of 1st Example. 本発明に関連する別の実施例(第2実施例)である衣類乾燥機の概略側面縦断面図。 The schematic side surface longitudinal cross-sectional view of the clothes dryer which is another Example (2nd Example) relevant to this invention . 第2実施例の衣類乾燥機の概略正面縦断面図。The schematic front longitudinal cross-sectional view of the clothes dryer of 2nd Example. 第2実施例の衣類乾燥機における特徴的な動作を説明するための模式図。The schematic diagram for demonstrating the characteristic operation | movement in the clothes dryer of 2nd Example.
符号の説明Explanation of symbols
1…筐体
2…ドア
3…乾燥室
4…ドラム
41…衣類投入口
42、46…通気孔
43…バッフル
44…突部
45…膨出部
5…主軸
6…軸受
7…大プーリ
8…ドラムモータ
9…モータプーリ
10…タイミングベルト
11…吹出口
12…吸気路
13…吸気口
14…加熱源
15…吸込口
16…排気路
17…排気口
18…リントフィルタ
19…ブロア
20…ブロアモータ

DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Door 3 ... Drying chamber 4 ... Drum 41 ... Clothing inlet 42, 46 ... Vent hole 43 ... Baffle 44 ... Projection 45 ... Swelling part 5 ... Main shaft 6 ... Bearing 7 ... Large pulley 8 ... Drum Motor 9 ... Motor pulley 10 ... Timing belt 11 ... Air outlet 12 ... Air intake path 13 ... Air intake opening 14 ... Heat source 15 ... Air intake opening 16 ... Air exhaust path 17 ... Air exhaust outlet 18 ... Lint filter 19 ... Blower 20 ... Blower motor

Claims (1)

  1. 前後方向に延伸する水平な軸を中心に回転自在であって、周面が略円筒形状で前端面に衣類投入開口を有し内部に乾燥対象の衣類を収容するドラムと、該ドラムを内装する乾燥室と、前記乾燥室の後方上部に開口した吹出口から該乾燥室内に空気を送り込むための吸気路と、前記乾燥室に面し前記吹出口よりも前方の下部に設けられた吸込口から前記乾燥室内の空気を排出するための排気路と、前記吸気路内又は前記排気路内のいずれかにあって、吸気路、乾燥室及び排気路を通る空気流を生起する空気流生起手段と、前記吸気路内にあって空気を加熱する加熱手段と、を備え、
    多数の通気孔が穿設された前記ドラムの周面の内面側に、衣類の撹拌を促すための前後方向に延伸する断面略二等辺三角形状のバッフルを複数備えるとともに、回転方向に隣接する前記バッフル間で、前記吹出口が位置している後方側にのみ、内方に突出しその高さが後方から前方に向かうに従い低くなるように形成され且つ回転方向の厚みが前記バッフルにあってドラム内面に接した部位よりも薄い突部を備え、該突部によりドラム回転時に衣類を該ドラムの内面から遠ざけて前記吹出口に相対するドラム周面の通気孔の開口を確保するようにしたことを特徴とする衣類乾燥機。
    A drum that is rotatable about a horizontal axis that extends in the front-rear direction, has a substantially cylindrical shape, has a clothing input opening at the front end surface, and accommodates clothes to be dried inside, and includes the drum From a drying chamber, an intake passage for sending air into the drying chamber from a blower outlet opened at the upper rear of the drying chamber, and a suction port provided at a lower portion facing the drying chamber and in front of the blower outlet An exhaust passage for exhausting air in the drying chamber, and an air flow generating means for generating an air flow passing through the intake passage, the drying chamber, and the exhaust passage in either the intake passage or the exhaust passage. And heating means for heating the air in the intake passage,
    A plurality of baffles having a substantially isosceles cross section extending in the front-rear direction for facilitating agitation of clothes are provided on the inner surface side of the peripheral surface of the drum in which a large number of air holes are perforated, and adjacent to the rotation direction. Between the baffles, only the rear side where the air outlet is located is formed so as to protrude inward, and its height decreases as it goes from the rear to the front, and the thickness in the rotation direction is on the baffle and the drum inner surface A protrusion that is thinner than the portion in contact with the drum, and the protrusion keeps the garment away from the inner surface of the drum during rotation of the drum so as to secure the opening of the air vent on the drum circumferential surface facing the outlet. Features a clothes dryer.
JP2005312477A 2005-10-27 2005-10-27 Clothes dryer Expired - Fee Related JP4566112B2 (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012170680A (en) * 2011-02-23 2012-09-10 Panasonic Corp Drum-type washing machine
JP5852934B2 (en) * 2012-07-10 2016-02-03 日立アプライアンス株式会社 Drum-type washing machine and drum-type washing machine
CN105755776B (en) * 2016-04-06 2018-11-06 无锡小天鹅股份有限公司 Dryer

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS423427Y1 (en) * 1964-09-16 1967-02-28
JPS588497U (en) * 1981-07-09 1983-01-20
JPS5955299A (en) * 1982-09-20 1984-03-30 Sanyo Electric Co Clothing dryer
JP2002315985A (en) * 2001-04-20 2002-10-29 Sanyo Electric Co Ltd Drum-type washing machine
JP2004113790A (en) * 2002-09-26 2004-04-15 Ipso-Lsg Nv Laundry dryer
JP2005204969A (en) * 2004-01-23 2005-08-04 Toshiba Corp Drum type washing machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS423427Y1 (en) * 1964-09-16 1967-02-28
JPS588497U (en) * 1981-07-09 1983-01-20
JPS5955299A (en) * 1982-09-20 1984-03-30 Sanyo Electric Co Clothing dryer
JP2002315985A (en) * 2001-04-20 2002-10-29 Sanyo Electric Co Ltd Drum-type washing machine
JP2004113790A (en) * 2002-09-26 2004-04-15 Ipso-Lsg Nv Laundry dryer
JP2005204969A (en) * 2004-01-23 2005-08-04 Toshiba Corp Drum type washing machine

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