JP2007105373A - Clothes drying machine - Google Patents

Clothes drying machine Download PDF

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JP2007105373A
JP2007105373A JP2005301726A JP2005301726A JP2007105373A JP 2007105373 A JP2007105373 A JP 2007105373A JP 2005301726 A JP2005301726 A JP 2005301726A JP 2005301726 A JP2005301726 A JP 2005301726A JP 2007105373 A JP2007105373 A JP 2007105373A
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drum
air
drying chamber
drying
chamber
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Masahiro Fujiwara
正宏 藤原
Osamu Hayamizu
修 速水
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Sanyo Electric Co Ltd
三洋電機株式会社
Sanyo Electric Techno Create Co Ltd
三洋電機テクノクリエイト株式会社
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<P>PROBLEM TO BE SOLVED: To provide a clothes drying machine, in which heated air can be smoothly fed into a drum even in a case where bulkiness of clothes is increased as drying proceeds so as to improve clothes drying efficiency, and restrict drying irregularity. <P>SOLUTION: A circular member 45 is provided on a circumferential surface of the drum 4 to partision the inside of a drying chamber to an inlet chamber 3a and an outlet chamber 3b, and vent holes 44 are formed in a recess 42 in a back surface as well as in the circumferential surface of the drum 4. In drying operation, rotation speed of the drum 4 is increased in the second half of a clothes drying process than in the first half. Centrifugal force added to the clothes is thus increased when they are bulkier, and the clothes are biased toward the inside of the circumferential surface of the drum 4, leaving large space around the axis, and facilitating penetration of heated air through the vent holes 44 in the recess 42 into the drum 4. Heated air can thus be sufficiently fed into the drum even after the clothes become bulky, thereby promoting drying. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

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 holes formed in the drum peripheral surface over the entire periphery are closed with clothing, resulting in poor air permeability through the air holes. 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 resolve these problems, it is necessary to consider the amount of clothing that is put in first 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第1発明は、水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるように通気妨害手段を設けるとともに、前記ドラムの閉塞側端面の中央側に通気孔を形成したことを特徴している。
The first invention made to solve the above-mentioned problems is rotatable around a horizontal or inclined axis, and has a substantially cylindrical shape with a garment input opening at one end face and is dry inside. A drum for storing the clothing of interest; a drying chamber in which the drum is installed; an air intake passage for sending air into the drying chamber from an outlet opening toward the drying chamber; and the blowing chamber facing the drying chamber An exhaust passage for exhausting air in the drying chamber from a suction port provided at a position relatively closer to an end surface side where a clothing input opening is formed in the axial direction of the drum than the outlet; and in the intake passage or An air flow generating means for generating an air flow passing through the intake path, the drying chamber and the exhaust path in any one of the exhaust paths, and a heating means for heating the air in the intake path,
In the axial direction of the drum, there is provided air blocking means so that a gap between the outer peripheral surface of the drum and the inner surface of the drying chamber is narrowed between the blower outlet and the suction port. The vent hole is formed in the center side.
上記課題を解決するために成された第2発明は、水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるように通気妨害手段を設けるとともに、該通気妨害手段で隔てられた吹出口側に乾燥室内に向いた開口を有し吸込口側でドラム内に向いた開口を有する通気路を該ドラムの内面に設けたことを特徴としている。
The second invention made to solve the above-mentioned problems is rotatable around a horizontal or inclined axis, and has a substantially cylindrical shape with a garment input opening at one end face and is dried inside. A drum for storing the clothing of interest; a drying chamber in which the drum is installed; an air intake passage for sending air into the drying chamber from an outlet opening toward the drying chamber; and the blowing chamber facing the drying chamber An exhaust passage for exhausting air in the drying chamber from a suction port provided at a position relatively closer to an end surface side where a clothing input opening is formed in the axial direction of the drum than the outlet; and in the intake passage or An air flow generating means for generating an air flow passing through the intake path, the drying chamber and the exhaust path in any one of the exhaust paths, and a heating means for heating the air in the intake path,
Ventilation preventing means is provided in the axial direction of the drum so that a gap between the outer peripheral surface of the drum and the inner surface of the drying chamber is narrowed between the blower outlet and the suction opening, and is separated by the ventilation obstruction means. Further, an air passage having an opening facing the drying chamber on the air outlet side and an opening facing the inside of the drum on the suction port side is provided on the inner surface of the drum.
上記課題を解決するために成された第3発明は、水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるように通気妨害手段を設けるとともに、前記ドラムには、前記通気妨害手段で隔てられた吹出口側でその周面の全周に通気孔を形成し吸込口側ではその周面の周方向の一部範囲にのみ通気孔を形成したことを特徴している。
The third invention made to solve the above-mentioned problems is rotatable around a horizontal or inclined axis, and has a substantially cylindrical shape with a garment input opening at one end face and is dry inside. A drum for storing the clothing of interest; a drying chamber in which the drum is installed; an air intake passage for sending air into the drying chamber from an outlet opening toward the drying chamber; and the blowing chamber facing the drying chamber An exhaust passage for exhausting air in the drying chamber from a suction port provided at a position relatively closer to an end surface side where a clothing input opening is formed in the axial direction of the drum than the outlet; and in the intake passage or An air flow generating means for generating an air flow passing through the intake path, the drying chamber and the exhaust path in any one of the exhaust paths, and a heating means for heating the air in the intake path,
Ventilation preventing means is provided in the axial direction of the drum so that a gap between the outer peripheral surface of the drum and the inner surface of the drying chamber is narrowed between the air outlet and the suction port. A vent hole is formed in the entire circumference of the peripheral surface on the outlet side separated by the blocking means, and a vent hole is formed only in a partial range in the circumferential direction of the peripheral surface on the suction port side.
上記課題を解決するために成された第4発明は、水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
前記吸込口を乾燥室の底部側に設けるとともに、前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるようにしつつ底部側でその一部が途切れた通気妨害手段を前記乾燥室の内面に設けたことを特徴としている。
A fourth invention made to solve the above-mentioned problems is rotatable around a horizontal or inclined axis, and has a substantially cylindrical shape with a clothing input opening at one end face and is dry inside. A drum for storing the clothing of interest; a drying chamber in which the drum is installed; an air intake passage for sending air into the drying chamber from an outlet opening toward the drying chamber; and the blowing chamber facing the drying chamber An exhaust passage for exhausting air in the drying chamber from a suction port provided at a position relatively closer to an end surface side where a clothing input opening is formed in the axial direction of the drum than the outlet; and in the intake passage or An air flow generating means for generating an air flow passing through the intake path, the drying chamber and the exhaust path in any one of the exhaust paths, and a heating means for heating the air in the intake path,
The suction port is provided on the bottom side of the drying chamber, and the gap between the outer peripheral surface of the drum and the surface of the drying chamber is narrowed between the air outlet and the suction port in the axial direction of the drum. Ventilation preventing means partially cut off on the bottom side is provided on the inner surface of the drying chamber.
なお、第1乃至第4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 first to fourth aspects of the present invention, the structure of the air circulation path is an exhaust type structure in which both the inlet of the intake passage and the outlet of the exhaust passage are open to the outside, and the inlet and exhaust of the intake passage. Either a circulation type structure in which a dehumidifier is provided in the exhaust path connected to the outlet of the path, or a combination of both may be used.
第1発明に係る衣類乾燥機では、ドラムの周面だけでなく衣類投入開口が設けられている端面とは反対側のドラムの閉塞側端面の中央側にも通気孔が穿孔されている。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、ドラム内に存在している衣類にはドラム回転に伴う遠心力が作用しており、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、衣類を撹拌するために比較的低速でドラムが回転されているときでも、ドラムの軸近傍には空間が形成され易い。   In the clothes dryer according to the first aspect of the invention, the vent hole is perforated not only on the peripheral surface of the drum but also on the central side of the closed side end surface of the drum opposite to the end surface provided with the clothing input opening. As the drying of the clothing progresses, the clothing swells and increases in volume as described above, but the centrifugal force associated with the drum rotation acts on the clothing present in the drum, and the centrifugal force is at the center of the drum. The greater the distance from (axis), the greater. Therefore, even when the drum is rotated at a relatively low speed to stir the clothes, a space is easily formed in the vicinity of the drum axis.
第1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る状況になったときでも、ドラム閉塞側端面中央側の通気孔は塞がれにくいので、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。   According to the clothes dryer according to the first aspect of the present invention, the air hole on the center side of the drum closing side end surface is not damaged even when the air drying hole on the drum peripheral surface is blocked by the garment that has been dried. Since it is difficult to block, 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.
また上記第1発明に係る衣類乾燥機では、好ましくは、乾燥運転の後半期間に前半期間よりも前記ドラムの回転速度を上昇させるように該ドラムの駆動源を制御する制御手段を備える構成とするとよい。   In the clothes dryer according to the first aspect of the present invention, preferably, it is configured to include a control means for controlling the driving source of the drum so as to increase the rotation speed of the drum in the latter half period of the drying operation as compared with the first half period. Good.
この構成によれば、衣類の乾燥が進行してその嵩が大きくなるとドラムの回転速度が上がってドラム内の各衣類に作用する遠心力が大きくなる。それによって、各衣類はドラム内周面側に片寄る傾向になり、ドラム軸近傍の空間が空き易くなる。その結果、ドラム閉塞側端面中央側の通気孔からドラム内に加熱空気が一層流入し易くなり、衣類の良好な乾燥や乾燥むらの防止を一層促進することができる。   According to this configuration, when the clothes are dried and the bulk thereof is increased, the rotational speed of the drum is increased, and the centrifugal force acting on each piece of clothes in the drum is increased. As a result, each garment tends to be displaced toward the inner peripheral surface of the drum, and the space near the drum shaft is easily vacant. As a result, it becomes easier for heated air to flow into the drum from the air hole on the center side of the drum closing side end surface, and it is possible to further promote good drying of clothes and prevention of uneven drying.
また第2発明に係る衣類乾燥機では、ドラムの周面に通気孔が設けられているほかに、ドラム内面に配設された通気路を利用して、ドラム外側(乾燥室内)から直接的に、ドラム内であって上記通気妨害手段よりも吸込口に近い側に加熱空気を供給することができる。吹出口から乾燥室内に供給された加熱空気は通気孔を通してドラム内に流入するが、全般的に見れば、吹出口から遠い側、つまり吸込口に近い側に位置する衣類にまでは乾いた加熱空気が届きにくい。これに対し、第2発明に係る衣類乾燥機によれば、未だ衣類と熱交換していない加熱空気が通気路を通ってドラム内で吹出口から遠い側に位置する衣類にまで行き渡るので、衣類の乾燥が進行してきて各衣類が膨らんでも、乾燥むらの発生を軽減することができる。   Further, in the clothes dryer according to the second aspect of the invention, in addition to the air holes provided in the peripheral surface of the drum, the air dryer can be used directly from the outside of the drum (drying chamber) using an air passage disposed on the inner surface of the drum. In the drum, the heated air can be supplied to the side closer to the suction port than the air-permeation means. Heated air supplied from the air outlet into the drying chamber flows into the drum through the vents, but in general, dry heating is applied even to clothing located on the side far from the air outlet, that is, on the side close to the air inlet. Air is hard to reach. On the other hand, according to the clothes dryer according to the second aspect of the invention, the heated air that has not yet exchanged heat with the clothes passes through the ventilation path to the clothes positioned on the far side from the outlet in the drum. Even if the drying of the clothes progresses and each clothing swells, the occurrence of uneven drying can be reduced.
なお、上記第2発明に係る衣類乾燥機においては、ドラム内に凸設されたバッフルを利用して上記通気路を形成するようにすれば、通気路を形成する部材を別途設ける必要がなく、ドラム内の空間を狭くすることもない。   In the clothes dryer according to the second aspect of the present invention, if the air passage is formed using a baffle protruding in the drum, there is no need to separately provide a member for forming the air passage, The space inside the drum is not narrowed.
また第3発明に係る衣類乾燥機では、通気妨害手段よりも吹出口に近い側ではドラム周面の全周に通気孔が形成されているが、吸込口に近い側ではドラム周面の周方向の一部範囲にのみしか通気孔が形成されていない。したがって、ドラム内からの湿った空気の出口は該ドラムの回転に伴って円周上を移動する。これにより、ドラム内に加熱空気が滞留し易く、濡れた(湿った)衣類との熱交換効率を上げることができるとともに、ドラム内に渦巻き状の空気流を生起させることでドラム内の衣類に加熱空気を行き渡らせ易くすることができる。したがって、第3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各衣類が膨らんでも、衣類の乾燥を良好に行うことができるとともに乾燥むらの発生を軽減することができる。   In the clothes dryer according to the third aspect of the invention, the air hole is formed in the entire circumference of the drum circumferential surface on the side closer to the air outlet than the air flow obstructing means, but on the side near the suction port, the circumferential direction of the drum circumferential surface The vent is formed only in a part of the area. Therefore, the outlet of the humid air from the drum moves on the circumference as the drum rotates. As a result, heated air tends to stay in the drum and heat exchange efficiency with wet (wet) clothing can be increased, and a spiral air flow can be generated in the drum to cause clothing in the drum. Heated air can be easily distributed. Therefore, according to the clothes dryer which concerns on 3rd invention, even if clothing drying progresses and each clothing swells, it can dry clothing well and can reduce generation | occurrence | production of drying unevenness.
また第4発明に係る衣類乾燥機では、通気妨害手段はドラム外周と乾燥室内面との空隙をドラムの全周に亘って狭めるのではなく、吸込口が設けられている乾燥室の底部の一部が意図的に欠損した状態とされている。そのため、その欠損した箇所を通して吹出口側から吸込口側に加熱空気が流れる。乾燥に伴って衣類からは糸屑や埃等のゴミが出るが、吹出口側で出たゴミは上記欠損した箇所を通過する空気流に乗って吸込口側に円滑に流れ、そして速やかに吸込口から排気路に排出される。なお、排気路内にリントフィルタが設けられていれば、ゴミはリントフィルタに捕集される。したがって、この第4発明に係る衣類乾燥機によれば、上述したように衣類の乾燥効率を向上させ乾燥むらを軽減しながら、衣類から出る糸屑等のゴミが通気妨害手段に溜まることを防止することができる。   In the clothes dryer according to the fourth aspect of the invention, the air flow blocking means does not narrow the gap between the outer periphery of the drum and the inner surface of the drying chamber over the entire periphery of the drum, but instead of the bottom of the drying chamber provided with the suction port. The part is intentionally missing. Therefore, heated air flows from the outlet side to the inlet side through the missing part. Garbage such as lint and dust comes out from the clothes as it dries, but the dust that comes out at the outlet exits smoothly through the airflow passing through the above-mentioned missing part and flows into the inlet side quickly and sucks in quickly. It is discharged from the mouth to the exhaust passage. Note that if a lint filter is provided in the exhaust passage, dust is collected by the lint filter. Therefore, according to the clothes dryer according to the fourth aspect of the present invention, as described above, while improving the drying efficiency of the clothes and reducing the unevenness of drying, it is possible to prevent dust such as lint from the clothes from accumulating in the ventilation obstruction means. can do.
[第1実施例]
第1発明に係る衣類乾燥機の一実施例(第1実施例)を図1〜図5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、図4は本実施例の衣類乾燥機の要部の電気系構成図、図5は本実施例の衣類乾燥機の特徴的な制御を説明するための図である。
[First embodiment]
An embodiment (first embodiment) of a clothes dryer according to the first 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. 4 is an electric system configuration diagram of the main part of the clothes dryer of this embodiment, and FIG. 5 is a diagram for explaining characteristic control of the clothes dryer of this embodiment.
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10及びブロアモータ19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 10 and the blower motor 19 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43a、43bが穿設されている。なお、図1では後述する入口室3aに面する通気孔を符号43aと記述し、出口室3bに面する通気孔を符号43bと記述している。ドラム4の軸方向の中央付近であってその外周面には環状体45が取り付けられ、これによって乾燥室3内面とドラム4外周面との間の空隙は、吹出口11側の入口室3aと吸込口15側の出口室3bとに仕切られている。即ち、この環状体45が入口室3aから出口室3bへの直接的な空気の流通を制限するための部材であり、本発明における通気妨害手段に相当する。ドラム4が静止した状態では環状体45の外周縁と乾燥室3内壁との間には狭い空隙が存在するが、ドラム4や乾燥室3が振動する際に環状体45は乾燥室3内壁に接触するおそれがある。そこで、環状体45は或る程度の弾性を有し、また耐摩耗性にも優れる材料から形成するとよく、例えばシリコーンなどを用いることができる。   A large number of small ventilation holes 43 a and 43 b are formed in the cylindrical peripheral surface of the drum 4. In FIG. 1, a vent hole facing the inlet chamber 3a described later is denoted by reference numeral 43a, and a vent hole facing the outlet chamber 3b is denoted by numeral 43b. An annular body 45 is attached to the outer peripheral surface of the drum 4 in the vicinity of the center in the axial direction, so that a gap between the inner surface of the drying chamber 3 and the outer peripheral surface of the drum 4 is separated from the inlet chamber 3a on the outlet 11 side. It is partitioned into an outlet chamber 3b on the suction port 15 side. In other words, the annular body 45 is a member for restricting the direct air flow from the inlet chamber 3a to the outlet chamber 3b, and corresponds to the air flow blocking means in the present invention. When the drum 4 is stationary, there is a narrow gap between the outer peripheral edge of the annular body 45 and the inner wall of the drying chamber 3, but when the drum 4 or the drying chamber 3 vibrates, the annular body 45 is placed on the inner wall of the drying chamber 3. There is a risk of contact. Therefore, the annular body 45 may be formed of a material having a certain degree of elasticity and excellent wear resistance. For example, silicone or the like can be used.
またこの衣類乾燥機に特徴的な構成として、後方に向いたドラム4の閉塞端面は中央側つまり主軸5の取付部付近でドラム4内方に窪んだ凹部42となっており、この凹部42にも多数の通気孔44が穿設されている。即ち、この衣類乾燥機では、ドラム4の周面のみならず、入口室3aに面した閉塞端面にも通気孔が形成されている。   As a characteristic configuration of the clothes dryer, the closed end surface of the drum 4 facing rearward is a concave portion 42 recessed inward of the drum 4 near the center side, that is, near the attachment portion of the main shaft 5. Also, a large number of vent holes 44 are formed. That is, in this clothes dryer, vent holes are formed not only on the peripheral surface of the drum 4 but also on the closed end surface facing the inlet chamber 3a.
上記構成により、前述のように吹出口11から乾燥室3内に流れ込んだ空気は、入口室3aに面してドラム4周面に穿設されている通気孔43aを通してドラム4内へと流入し、一部はドラム4の閉塞端面の後方に回り込んで通気孔44からドラム4内へと流入する。そして、ドラム4内を全体として後方から前方へと進み、出口室3bに面してドラム4の周面に穿設されている通気孔43bを通して外側、つまりドラム4外周面と乾燥室3内面との空隙へと抜けて吸込口15を経て排気路16へと送られる。環状体45による空気流の制限によって、ドラム4内を経ることなく入口室3aから出口室3bへと抜け得る空気の流通量は少なく、ドラム4内に収容されている衣類に加熱空気を効率良く当てることができる。   With the above configuration, the air that has flowed into the drying chamber 3 from the outlet 11 as described above flows into the drum 4 through the vent holes 43a that are formed in the peripheral surface of the drum 4 so as to face the inlet chamber 3a. , A part of the drum 4 moves behind the closed end surface of the drum 4 and flows into the drum 4 from the vent hole 44. The inside of the drum 4 proceeds from the rear to the front as a whole, and faces the outlet chamber 3b through the vent hole 43b formed in the peripheral surface of the drum 4, that is, the outer periphery of the drum 4 and the inner surface of the drying chamber 3 And is sent to the exhaust passage 16 through the suction port 15. Due to the restriction of the air flow by the annular body 45, the amount of air that can flow from the inlet chamber 3 a to the outlet chamber 3 b without passing through the drum 4 is small, and the heated air is efficiently supplied to the clothes accommodated in the drum 4. You can guess.
図4に示すように、本実施例の衣類乾燥機では、制御の中心にCPU等を含む制御部50が据えられ、操作部52からのキー入力信号、ドアスイッチ54によるドア2の開閉検知信号、例えば排気路16の入口に設置されたドラム4の出口温度を検出する温度センサ55の温度検知信号などが制御部50に入力される。制御部50は制御プログラムが予め格納されたROM等の記憶素子を有し、上記のような各入力信号を受けつつ制御プログラムをCPUで実行することにより、負荷駆動部51を介してドラムモータ8、ブロアモータ20、加熱源14を制御する。加熱源14がスチームラジエータである場合には、該ラジエータに高温蒸気を供給するバルブの開度を調整することにより加熱能力を制御することができる。制御部50はこのようにして後述するような乾燥運転を実行する。   As shown in FIG. 4, in the clothes dryer of the present embodiment, a control unit 50 including a CPU or the like is installed at the center of control, a key input signal from the operation unit 52, a door 2 opening / closing detection signal by the door switch 54. For example, a temperature detection signal of a temperature sensor 55 that detects the outlet temperature of the drum 4 installed at the inlet of the exhaust passage 16 is input to the controller 50. The control unit 50 includes a storage element such as a ROM in which a control program is stored in advance. The control program is executed by the CPU while receiving each input signal as described above, whereby the drum motor 8 is connected via the load driving unit 51. The blower motor 20 and the heating source 14 are controlled. When the heating source 14 is a steam radiator, the heating capacity can be controlled by adjusting the opening of a valve that supplies high-temperature steam to the radiator. The control unit 50 thus performs a drying operation as described later.
次に、本実施例の衣類乾燥機において、制御部50の制御の下で実行される運転上の特徴的な動作について説明する。   Next, in the clothes dryer of the present embodiment, a characteristic operation on the operation executed under the control of the control unit 50 will be described.
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を閉めて操作部52により所定の操作を行う。制御部50はこの操作を受け、ドアスイッチ54によりドア2が閉鎖されたことを確認した上で運転を開始する。運転の開始に伴い、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。   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 using the operation unit 52. The control unit 50 receives this operation and starts operation after confirming that the door 2 is closed by the door switch 54. As the operation starts, the drum motor 8 and the blower motor 20 are driven, and high-temperature steam is supplied to the steam radiator that is 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.
乾燥運転の前半には、ドラム4内に収容されている衣類に作用する遠心力が0.8G程度になるような回転速度で以てドラムモータ8は駆動される。これにより、ドラム4内の衣類は撹拌される。乾燥運転の前半には、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(入口室3a)に送り込まれた加熱空気はドラム4の周面の通気孔43a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43b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。   In the first half of the drying operation, the drum motor 8 is driven at a rotational speed such that the centrifugal force acting on the clothes accommodated in the drum 4 is about 0.8G. Thereby, the clothes in the drum 4 are agitated. In the first half of the drying operation, since the clothes housed in the drum 4 suck in water (or solvent), 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 from the blower outlet 11 to the drying chamber 3 (inlet chamber 3a) smoothly flows into the drum 4 from the vent hole 43a on the peripheral surface of the drum 4, and this heated air moves backward in the drum 4. Proceeding from the side to the front, 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 and exits to the outside of the drum 4 through the vent hole 43b and travels 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.
衣類が或る程度乾くまでは温度センサ55により検知されるドラム出口温度は図5に示すように緩慢な上昇に留まる。これは、加熱空気の熱量が衣類に含まれる水蒸気を蒸発させるために殆ど使用されるため、空気自体の温度上昇は殆ど起こらないからである。そして、衣類の乾燥が或る程度進行してくると、ドラム4内で衣類との熱交換に利用される熱量が減少するため、ドラム出口温度の上昇度合が急になる。一方、このように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し、ドラム4内の空き空間が小さくなる。そのため、各衣類がドラム4内周面に接触するようになり、衣類が通気孔43aを塞いで加熱空気の流通が悪くなる。   Until the clothes are dried to some extent, the drum outlet temperature detected by the temperature sensor 55 remains at a slow rise as shown in FIG. This is because the amount of heat of the heated air is almost used to evaporate the water vapor contained in the clothing, so that the temperature of the air itself hardly increases. Then, when the garment is dried to some extent, the amount of heat used for heat exchange with the garment in the drum 4 decreases, so the degree of increase in the drum outlet temperature becomes abrupt. On the other hand, when drying progresses in this way, each garment swells in the drum 4 to increase its bulk, and the empty space in the drum 4 is reduced. Therefore, each garment comes into contact with the inner peripheral surface of the drum 4, and the garment blocks the vent hole 43a, so that the flow of heated air is deteriorated.
こうした状況下で、制御部50は温度センサ55により検知されるドラム出口温度が予め設定した上限温度T1になると、加熱を抑えるように加熱源14を制御する。具体的には、スチームラジエータに供給する高温蒸気の流量を減らすようにバルブの開度を調節する。それ以降、制御部50はドラム出口温度が上限温度T1を大きく越えずに且つ所定の温度範囲に収まるように加熱源14の加熱能力を調整する。それと共に制御部50は、ドラム出口温度が上限温度T1に達したならば、ドラム4の回転速度を上昇させるべくドラムモータ8を制御する。具体的には、ドラム4の衣類に作用する遠心力がそれまでの0.8Gから1.0Gに上昇するように回転速度を上げる。例えば、ドラム4の内径が650mmである場合に、回転速度は約47rpmから約53rpmに上昇される。   Under such circumstances, when the drum outlet temperature detected by the temperature sensor 55 reaches the preset upper limit temperature T1, the control unit 50 controls the heating source 14 to suppress heating. Specifically, the opening degree of the valve is adjusted so as to reduce the flow rate of high-temperature steam supplied to the steam radiator. Thereafter, the control unit 50 adjusts the heating capability of the heating source 14 so that the drum outlet temperature does not greatly exceed the upper limit temperature T1 and falls within a predetermined temperature range. At the same time, the control unit 50 controls the drum motor 8 to increase the rotational speed of the drum 4 when the drum outlet temperature reaches the upper limit temperature T1. Specifically, the rotational speed is increased so that the centrifugal force acting on the clothes on the drum 4 increases from 0.8G to 1.0G. For example, when the inner diameter of the drum 4 is 650 mm, the rotation speed is increased from about 47 rpm to about 53 rpm.
前述したように衣類の乾燥が進行すると、各衣類は膨らんできてドラム4内の空間が狭くなるが、ドラム4の回転速度が上昇されると各衣類に作用する遠心力が大きくなり、図3(b)に示すように、ドラム4内の衣類は全体的にドラム4中央側から内周面に近づく方向に片寄る。これによって、ドラム4の中央側つまり軸の周囲に空間が生じ、ドラム4周面の通気孔43aは衣類で塞がれるものの、後面の凹部42の通気孔44は衣類で塞がれず、この通気孔44を通してドラム4内に円滑に加熱空気が流入する。したがって、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、制御部50はドラムモータ8、ブロアモータ20を停止して運転を終了する。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。   As described above, as the garment is dried, each garment swells and the space in the drum 4 is reduced. However, when the rotation speed of the drum 4 is increased, the centrifugal force acting on each garment increases, and FIG. As shown in (b), the clothes in the drum 4 are generally displaced in the direction approaching the inner peripheral surface from the center side of the drum 4. As a result, a space is created on the center side of the drum 4, that is, around the shaft, and the vent hole 43a on the peripheral surface of the drum 4 is blocked by clothing, but the vent hole 44 of the recess 42 on the rear surface is not blocked by clothing. Heated air flows smoothly into the drum 4 through the air holes 44. Therefore, even if the clothing swells in the second half of the drying operation, the heated air can be smoothly fed into the drum 4 to promote the drying of the clothing. For example, when a predetermined operation time has elapsed, the control unit 50 stops the drum motor 8 and the blower motor 20 and ends the operation. 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、第2発明に係る衣類乾燥機の一実施例(第2実施例)を図6、図7に基づいて説明する。図6は本実施例の衣類乾燥機の概略側面縦断面図、図7はこの衣類乾燥機のドラム4の一部破断斜視図である。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。この点は以下の各実施例でも同様である。
[Second Embodiment]
Next, an embodiment (second embodiment) of a clothes dryer according to the second invention will be described with reference to FIGS. FIG. 6 is a schematic side sectional view of the clothes dryer of the present embodiment, and FIG. 7 is a partially cutaway perspective view of the drum 4 of the clothes dryer. 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. This is the same in the following embodiments.
ドラム4の内周面には衣類の撹拌を促すためのバッフル46が120°間隔離して配設されているが、この第2実施例の衣類乾燥機では、このバッフル46が加熱空気をドラム4内に案内するために利用される。即ち、図6、図7に示すように、バッフル46の内部は空洞になっており、乾燥室3内で入口室3aに面してドラム4周面には大きな開口47が形成され、出口室3b側ではバッフル46の壁面に多数の通気孔48が形成されている。これにより、バッフル46内部の空洞は、開口47を入口とし、通気孔48を出口とする通気路49となっている。   A baffle 46 for promoting the agitation of clothing is disposed on the inner peripheral surface of the drum 4 with an interval of 120 °. In the clothes dryer of the second embodiment, the baffle 46 removes heated air from the drum 4. Used to guide in. That is, as shown in FIGS. 6 and 7, the inside of the baffle 46 is hollow, and a large opening 47 is formed in the circumferential surface of the drum 4 so as to face the inlet chamber 3 a in the drying chamber 3. A large number of vent holes 48 are formed in the wall surface of the baffle 46 on the 3b side. As a result, the cavity inside the baffle 46 is a ventilation path 49 having the opening 47 as an inlet and the vent 48 as an outlet.
前述のように乾燥運転時にドラム4は所定速度で回転されるから、吹出口11に対向する位置に周期的に開口47が到来し、それ以外のときには吹出口11に対向する位置に通気孔43aが穿設されたドラム4周面が存在する。したがって、吹出口11から乾燥室3(入口室3a)に送り込まれた加熱空気はドラム4の周面に沿って側方や後方にも回り込むものの、吹出口11に対向する位置に開口47が到来したときには加熱空気の多くが開口47を通して通気路49に流入し、通気孔48からドラム4内に供給される。一方、吹出口11に対向する位置に通気孔43aが穿設されたドラム4周面が存在する場合には、加熱空気の多くが通気孔43aを通してドラム4内に供給される。   Since the drum 4 is rotated at a predetermined speed during the drying operation as described above, the opening 47 periodically arrives at a position facing the air outlet 11, and at other times, the vent hole 43 a is located at a position facing the air outlet 11. There is a circumferential surface of the drum 4 in which is drilled. Therefore, although the heated air sent from the blower outlet 11 to the drying chamber 3 (the inlet chamber 3a) flows sideways and rearward along the peripheral surface of the drum 4, the opening 47 arrives at a position facing the blower outlet 11. In this case, most of the heated air flows into the air passage 49 through the opening 47 and is supplied into the drum 4 from the air hole 48. On the other hand, when there is a drum 4 peripheral surface with a vent hole 43a formed at a position facing the air outlet 11, most of the heated air is supplied into the drum 4 through the vent hole 43a.
即ち、ドラム4が回転するに伴い、加熱空気が入口室3a側に位置するドラム4内方に直接供給される期間と、出口室3b側に位置するドラム4内方に直接供給される期間とが交互に発生する。ドラム4周面の通気孔43aを通して加熱空気がドラム4内に供給されるだけでは、出口室3b側に位置するドラム4内方にある衣類には乾いた加熱空気が当たりにくいが、第2実施例の衣類乾燥機では、前述のように出口室3b側に位置するドラム4内方に直接的に加熱空気を送給する期間が存在するので、ドラム4内の衣類全体に加熱空気を行き渡らせることで乾燥むらを軽減することができる。   That is, as the drum 4 rotates, a period in which heated air is directly supplied to the inside of the drum 4 located on the inlet chamber 3a side, and a period in which the heated air is supplied directly to the inside of the drum 4 located on the outlet chamber 3b side. Occur alternately. If heated air is simply supplied into the drum 4 through the vent hole 43a on the peripheral surface of the drum 4, dry heated air is difficult to hit the clothes inside the drum 4 located on the outlet chamber 3b side. In the example clothes dryer, there is a period in which the heated air is directly supplied to the inside of the drum 4 located on the outlet chamber 3b side as described above, so that the heated air is spread over the entire clothes in the drum 4. This can reduce uneven drying.
[第3実施例]
次に、第3発明に係る衣類乾燥機の一実施例(第3実施例)を図8に基づいて説明する。図8は本実施例の衣類乾燥機におけるドラムの斜視図である。この第3実施例の衣類乾燥機は、上記第2実施例の衣類乾燥機においてドラムを図7に示すものから図8に示すものに替えたものである。
[Third embodiment]
Next, an embodiment (third embodiment) of a clothes dryer according to the third invention will be described with reference to FIG. FIG. 8 is a perspective view of a drum in the clothes dryer of this embodiment. The clothes dryer of the third embodiment is obtained by replacing the drum shown in FIG. 7 with the one shown in FIG. 8 in the clothes dryer of the second embodiment.
この第3発明に係る衣類乾燥機の構成上の特徴は、ドラム4の周面にあって環状体45よりも後方側ではその全周に満遍なく通気孔43aを穿設しているのに対し、環状体45よりも前方側では周方向に符号Pで示す一部範囲にのみ通気孔43bを穿設していることである。入口室3a内では、吹出口11から吐き出される加熱空気が通気孔43aを通過する条件はドラム4の回転位置に拘わらず同じであるが、出口室3b内ではドラム4回転に伴い通気孔43bが存在する位置が回転移動するため、ドラム4内を通ってきた空気が通気孔43bを抜ける条件はドラム4の回転に伴って変化する。   The structural feature of the clothes dryer according to the third aspect of the invention is that the air holes 43a are uniformly bored in the entire circumference on the rear side of the annular body 45 on the peripheral surface of the drum 4, The vent hole 43b is formed only in a partial range indicated by the symbol P in the circumferential direction on the front side of the annular body 45. In the inlet chamber 3a, the conditions under which the heated air discharged from the outlet 11 passes through the vent hole 43a are the same regardless of the rotation position of the drum 4. However, in the outlet chamber 3b, the vent hole 43b is formed along with the rotation of the drum 4. Since the existing position rotates, the condition that the air that has passed through the drum 4 passes through the vent hole 43b changes as the drum 4 rotates.
具体的には、通気孔3bが吸込口15に対向する位置つまり乾燥室3の底部側に来たときには、通気孔3bを通る空気の流量抵抗が相対的に小さくなりドラム4内を通過する空気の流通量が増加する。したがって、ドラム4の回転に伴い、ドラム4の内部から空気が出る量は増減し、その減少時にはドラム4内に加熱空気が停滞し易くなる。また、ドラム4の回転に伴いドラム4から空気が出る位置が回転移動するため、ドラム4内ではドラム4の回転と同方向の渦巻き状の空気流の形成が促進される。   Specifically, when the vent hole 3b comes to the position facing the suction port 15, that is, the bottom side of the drying chamber 3, the flow resistance of the air passing through the vent hole 3b becomes relatively small and the air passing through the drum 4 The distribution volume of will increase. Therefore, as the drum 4 rotates, the amount of air that flows out from the inside of the drum 4 increases and decreases. Further, since the position where the air exits from the drum 4 rotates as the drum 4 rotates, formation of a spiral air flow in the same direction as the rotation of the drum 4 is promoted in the drum 4.
一般に、ドラム4内での加熱空気の流れの方向や速度が一定であると一部の衣類に加熱空気が十分に当たらなくなる傾向にあって乾燥不良や乾燥むらが生じ易い。これに対し、第3実施例の衣類乾燥機では、前述のように、ドラム4内を通過する加熱空気の方向や速度が周期的に変化する。これにより、ドラム4内の衣類に加熱空気が行き渡り易くなり、乾燥むらを減らすことができる。また加熱空気がドラム4内に滞留した際に熱交換が促進され、その後に加熱空気の流れが速くなると熱交換によって衣類から蒸発した水蒸気が一気に運び去られるため、全般的に乾燥効率が向上する。   In general, if the direction and speed of the heated air flow in the drum 4 are constant, the heated air tends not to be sufficiently applied to some clothing, and dryness and uneven drying are likely to occur. On the other hand, in the clothes dryer of the third embodiment, the direction and speed of the heated air passing through the drum 4 periodically change as described above. As a result, the heated air easily reaches the clothes in the drum 4, and drying unevenness can be reduced. Further, heat exchange is promoted when the heated air stays in the drum 4, and if the flow of the heated air becomes faster thereafter, the water vapor evaporated from the clothes due to the heat exchange is carried away all at once, so that the drying efficiency is generally improved. .
[第4実施例]
次に、第4発明に係る衣類乾燥機の一実施例(第4実施例)を図9、図10に基づいて説明する。図9は本実施例の衣類乾燥機の概略側面縦断面図、図10はこの衣類乾燥機の正面概略縦断面図である。この第4実施例の衣類乾燥機は上記第1実施例の衣類乾燥機と基本的には同一の構成であるが、第1実施例ではドラム4の周面に取り付けられていた通気妨害手段としての環状体45に相当する部材が、隔壁3cとして乾燥室3の内面に設けられている。この隔壁3cは、環状体45と同様に乾燥室3内を入口室3aと出口室3bとの仕切るものであるが、その下部側、つまり吸込口15に対応する部分が欠損した構造となっている。
[Fourth embodiment]
Next, an embodiment (fourth embodiment) of a clothes dryer according to the fourth invention will be described with reference to FIGS. FIG. 9 is a schematic side longitudinal sectional view of the clothes dryer of the present embodiment, and FIG. 10 is a schematic front longitudinal sectional view of the clothes dryer. The clothes dryer according to the fourth embodiment has basically the same configuration as the clothes dryer according to the first embodiment, but in the first embodiment, as the airflow obstructing means attached to the peripheral surface of the drum 4. A member corresponding to the annular body 45 is provided on the inner surface of the drying chamber 3 as a partition wall 3c. The partition wall 3 c, like the annular body 45, partitions the inside of the drying chamber 3 into an inlet chamber 3 a and an outlet chamber 3 b, but has a structure in which a lower side thereof, that is, a portion corresponding to the suction port 15 is missing. Yes.
上記のように隔壁3cの一部を欠損させたことにより、吹出口11から入口室3aに供給された加熱空気は全般的には通気孔43a、44を経てドラム4内に流れ込むが、一部は隔壁3cの欠損箇所を通して直接的に出口室3bに流れる。乾燥運転の際にドラム4内の衣類からは糸屑や埃などのゴミが出る。こうしたゴミは乾燥室3の底部近くに溜まることが多いが、この第4実施例の衣類乾燥機では、上述したように乾燥室3の底部に入口室3a側から出口室3bに向かい、出口室3bにおいてそのまま吸込口15から排気路16内へと進むような空気流が形成されているので、この空気流に乗せてゴミを乾燥室3内から排出することができる。それにより、入口室3a側でドラム4の外側に糸屑等のゴミが溜まることを防止することができる。   As described above, since a part of the partition wall 3c is lost, the heated air supplied from the outlet 11 to the inlet chamber 3a generally flows into the drum 4 through the vent holes 43a and 44. Flows directly into the outlet chamber 3b through the missing part of the partition wall 3c. Garbage such as lint and dust comes out of the clothes in the drum 4 during the drying operation. Such garbage often accumulates near the bottom of the drying chamber 3, but in the clothes dryer of the fourth embodiment, as described above, the bottom of the drying chamber 3 faces the outlet chamber 3b from the inlet chamber 3a side to the outlet chamber. Since an air flow is formed in 3b as it goes from the suction port 15 into the exhaust passage 16, dust can be discharged from the drying chamber 3 in this air flow. Thereby, it is possible to prevent dust such as yarn waste from accumulating on the outside of the drum 4 on the inlet chamber 3a side.
なお、上記第1〜第4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。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。   The first to fourth embodiments are merely examples, and it is obvious that modifications, corrections, and additions are appropriately included in the scope of the present application within the scope of the present invention. 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.
第1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 1st 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. 第1実施例の衣類乾燥機の要部の電気系構成図。The electric system block diagram of the principal part 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制御を説明するための図。The figure for demonstrating the characteristic control in the clothes dryer of 1st Example. 第2発明の一実施例(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 one Example (2nd Example) of 2nd invention. 第2実施例の衣類乾燥機のドラムの一部破断斜視図。The partially broken perspective view of the drum of the clothes dryer of 2nd Example. 第3発明の一実施例(第3実施例)である衣類乾燥機のドラムの斜視図。The perspective view of the drum of the clothes dryer which is one Example (3rd Example) of 3rd invention. 第4発明の一実施例(第4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 one Example (4th Example) of 4th invention. 第4実施例の衣類乾燥機の正面概略縦断面図。The front schematic longitudinal cross-sectional view of the clothes dryer of 4th Example.
符号の説明Explanation of symbols
1…筐体
2…ドア
3…乾燥室
3a…入口室
3b…出口室
3c…隔壁
4…ドラム
41…衣類投入口
42…凹部
43a、43b、44、48…通気孔
45…環状体
46…バッフル
47…開口
49…通気路
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
50…制御部
51…負荷駆動部
55…温度センサ

DESCRIPTION OF SYMBOLS 1 ... Housing | casing 2 ... Door 3 ... Drying chamber 3a ... Inlet chamber 3b ... Outlet chamber 3c ... Partition 4 ... Drum 41 ... Clothing inlet 42 ... Recess 43a, 43b, 44, 48 ... Vent hole 45 ... Ring body 46 ... Baffle 47 ... Opening 49 ... Ventilation path 5 ... Main shaft 6 ... Bearing 7 ... Large pulley 8 ... Drum motor 9 ... Motor pulley 10 ... Timing belt 11 ... Outlet 12 ... Intake path 13 ... Inlet 14 ... Heating source 15 ... Inlet 16 ... Exhaust path 17 ... Exhaust port 18 ... Lint filter 19 ... Blower 20 ... Blower motor 50 ... Control unit 51 ... Load drive unit 55 ... Temperature sensor

Claims (6)

  1. 水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
    前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるように通気妨害手段を設けるとともに、前記ドラムの閉塞側端面の中央側に通気孔を形成したことを特徴する衣類乾燥機。
    A drum that is rotatable about a horizontal or inclined axis, has a substantially cylindrical shape, has a clothing input opening on one end surface, and stores the clothing to be dried inside, and a drying unit that houses the drum An air intake passage for sending air into the drying chamber from an air outlet opened toward the drying chamber, and a clothing input opening facing the drying chamber and in the axial direction of the drum from the air outlet. An exhaust passage for discharging the air in the drying chamber from a suction port provided at a position relatively close to the end face side, and either the intake passage or the exhaust passage. An air flow generating means for generating an air flow through the chamber and the exhaust path, and a heating means for heating the air in the intake path,
    In the axial direction of the drum, there is provided air blocking means so that a gap between the outer peripheral surface of the drum and the inner surface of the drying chamber is narrowed between the blower outlet and the suction port. A clothes dryer characterized by a vent hole formed in the center.
  2. 乾燥運転の後半期間に前半期間よりも前記ドラムの回転速度を上昇させるように該ドラムの駆動源を制御する制御手段を備えることを特徴とする請求項1に記載の衣類乾燥機。   The clothes dryer according to claim 1, further comprising a control unit that controls a driving source of the drum so that the rotation speed of the drum is increased in the second half of the drying operation as compared with the first half.
  3. 水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
    前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるように通気妨害手段を設けるとともに、該通気妨害手段で隔てられた吹出口側に乾燥室内に向いた開口を有し吸込口側でドラム内に向いた開口を有する通気路を該ドラムの内面に設けたことを特徴する衣類乾燥機。
    A drum that is rotatable about a horizontal or inclined axis, has a substantially cylindrical shape, has a clothing input opening on one end surface, and stores the clothing to be dried inside, and a drying unit that houses the drum An air intake passage for sending air into the drying chamber from an air outlet opened toward the drying chamber, and a clothing input opening facing the drying chamber and in the axial direction of the drum from the air outlet. An exhaust passage for discharging the air in the drying chamber from a suction port provided at a position relatively close to the end face side, and either the intake passage or the exhaust passage. An air flow generating means for generating an air flow through the chamber and the exhaust path, and a heating means for heating the air in the intake path,
    Ventilation preventing means is provided in the axial direction of the drum so that a gap between the outer peripheral surface of the drum and the inner surface of the drying chamber is narrowed between the blower outlet and the suction opening, and is separated by the ventilation obstruction means. A clothes dryer characterized in that an air passage having an opening facing the drying chamber on the air outlet side and an opening facing the inside of the drum on the suction port side is provided on the inner surface of the drum.
  4. 前記通気路はドラム内に凸設されたバッフルを利用して形成されるものであることを特徴とする請求項3に記載の衣類乾燥機。   The clothes dryer according to claim 3, wherein the air passage is formed by using a baffle provided in a drum.
  5. 水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
    前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるように通気妨害手段を設けるとともに、前記ドラムには、前記通気妨害手段で隔てられた吹出口側でその周面の全周に通気孔を形成し吸込口側ではその周面の周方向の一部範囲にのみ通気孔を形成したことを特徴する衣類乾燥機。
    A drum that is rotatable about a horizontal or inclined axis, has a substantially cylindrical shape, has a clothing input opening on one end surface, and stores the clothing to be dried inside, and a drying unit that houses the drum An air intake passage for sending air into the drying chamber from an air outlet opened toward the drying chamber, and a clothing input opening facing the drying chamber and in the axial direction of the drum from the air outlet. An exhaust passage for discharging the air in the drying chamber from a suction port provided at a position relatively close to the end face side, and either the intake passage or the exhaust passage. An air flow generating means for generating an air flow through the chamber and the exhaust path, and a heating means for heating the air in the intake path,
    Ventilation preventing means is provided in the axial direction of the drum so that a gap between the outer peripheral surface of the drum and the inner surface of the drying chamber is narrowed between the air outlet and the suction port. A clothes dryer characterized in that a vent hole is formed in the entire circumference of the peripheral surface on the outlet side separated by the obstructing means, and a vent hole is formed only in a partial range in the circumferential direction of the peripheral surface on the suction port side. .
  6. 水平な又は傾斜した軸を中心に回転自在であって、周面が略円筒形状で一方の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、前記乾燥室に向けて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記ドラムの軸方向に衣類投入開口が形成された端面側に相対的に近い位置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、
    前記吸込口を乾燥室の底部側に設けるとともに、前記ドラムの軸方向に前記吹出口と前記吸込口との間で前記ドラム外周面と前記乾燥室内面との間の空隙が狭くなるようにしつつ底部側でその一部が途切れた通気妨害手段を前記乾燥室の内面に設けたことを特徴する衣類乾燥機。

    A drum that is rotatable about a horizontal or inclined axis, has a substantially cylindrical shape, has a clothing input opening on one end surface, and stores the clothing to be dried inside, and a drying unit that houses the drum An air intake passage for sending air into the drying chamber from an air outlet opened toward the drying chamber, and a clothing input opening facing the drying chamber and in the axial direction of the drum from the air outlet. An exhaust passage for discharging the air in the drying chamber from a suction port provided at a position relatively close to the end face side, and either the intake passage or the exhaust passage. An air flow generating means for generating an air flow through the chamber and the exhaust path, and a heating means for heating the air in the intake path,
    The suction port is provided on the bottom side of the drying chamber, and the gap between the outer peripheral surface of the drum and the surface of the drying chamber is narrowed between the air outlet and the suction port in the axial direction of the drum. A clothes dryer characterized in that a ventilation blocking means, part of which is interrupted on the bottom side, is provided on the inner surface of the drying chamber.

JP2005301726A 2005-10-17 2005-10-17 Clothes drying machine Pending JP2007105373A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7913418B2 (en) * 2005-06-23 2011-03-29 Whirlpool Corporation Automatic clothes dryer
JP2011244979A (en) * 2010-05-26 2011-12-08 Panasonic Corp Clothes dryer
DE102013210127A1 (en) * 2013-05-29 2014-12-04 BSH Bosch und Siemens Hausgeräte GmbH Clothes dryer with a rotatably mounted laundry drum
KR20180080720A (en) * 2016-12-27 2018-07-13 주식회사 에어로네트 Negative pressure type clothes dryer and method for controlling the same
CN109554901A (en) * 2018-11-02 2019-04-02 海信(山东)冰箱有限公司 A kind of drying washing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004113790A (en) * 2002-09-26 2004-04-15 Ipso-Lsg Nv Laundry dryer
JP2004194876A (en) * 2002-12-18 2004-07-15 Matsushita Electric Ind Co Ltd Clothes dryer and clothes washing and drying machine
JP2004351073A (en) * 2003-05-30 2004-12-16 Toshiba Corp Drum type washing and drying machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004113790A (en) * 2002-09-26 2004-04-15 Ipso-Lsg Nv Laundry dryer
JP2004194876A (en) * 2002-12-18 2004-07-15 Matsushita Electric Ind Co Ltd Clothes dryer and clothes washing and drying machine
JP2004351073A (en) * 2003-05-30 2004-12-16 Toshiba Corp Drum type washing and drying machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7913418B2 (en) * 2005-06-23 2011-03-29 Whirlpool Corporation Automatic clothes dryer
JP2011244979A (en) * 2010-05-26 2011-12-08 Panasonic Corp Clothes dryer
DE102013210127A1 (en) * 2013-05-29 2014-12-04 BSH Bosch und Siemens Hausgeräte GmbH Clothes dryer with a rotatably mounted laundry drum
KR20180080720A (en) * 2016-12-27 2018-07-13 주식회사 에어로네트 Negative pressure type clothes dryer and method for controlling the same
CN109554901A (en) * 2018-11-02 2019-04-02 海信(山东)冰箱有限公司 A kind of drying washing machine

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