JP2013169328A - Clothing drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clothing drying machine improved in durability and drying performance.SOLUTION: A clothing drying machine comprises: a drum 13 having a back wall 133 and opened to a side of a clothing pickup port 110 of a body; a door 12 covering the clothing pickup port 110; air supplying and exhausting means 21 within the drum 13; air heating means 18 for heating air to be supplied into the drum 13; a supporting shaft 15 rotatably supporting a central portion of the back wall 133 of the drum 13; and a covering plate 153 fixed to a tip of the supporting shaft 15 in a non-rotatable manner and covering a front surface of the back wall 133 from the interior of the drum 13. In the interior of the door 12, a hot air discharge port 121 discharging air within the drum 13 to the exterior is provided. In the back wall 133 of the drum 13, a hot air inlet 135 introducing the air heated by the air heating means 18 into a gap 102 between the back wall 133 and the covering plate 153 is provided. In the covering plate 153, a hot air blowing port 150 sending out the air introduced into the gap 102 to the interior of the drum 13 is provided.

Description

  The present invention relates to a clothes dryer.

  Conventionally, a hot air outlet is provided inside the fixed ring plate that supports the front surface of the drum or inside the support member that supports the rear surface of the drum, and the hot air is fed into the drum from the hot air outlet, There is known a clothes dryer having a rear exhaust structure that is configured to be discharged out of the drum through a hot air outlet provided on a wall (for example, Patent Documents 1 to 3). Since the air dryer for dust removal is provided in the warm air discharge port of the back wall of the drum, the air dryer is difficult to remove at the time of cleaning.

  Therefore, while providing a hot air outlet on the entire back wall of the drum formed in a flat shape, a hot air outlet is provided inside the door that covers the front opening of the drum so that the hot air is blown into the hot wall on the rear wall of the drum. It is conceivable to adopt a rear blow-out front exhaust structure in which the air is fed from the outlet toward the front in the drum and discharged to the outside through the warm air discharge port provided inside the door. According to the clothes dryer having the rear blowing-front exhaust structure, the air filter for dust removal can be disposed inside the door (formation part of the hot air discharge port). Easy to remove and easy to use.

  However, since the clothes roll in the drum during the drying operation, if the hot air outlet is provided on the entire inner wall of the large-area drum, the hot air is not uniformly applied to the clothes, and uneven drying occurs. There is a problem that it is easy. Even if the hot air outlet is provided only in a partial region of the back wall, the hot air outlet is also rotated by the rotation of the drum, so that the hot air cannot be fed into the drum from only a specific region due to the structure.

  On the other hand, in a conventional clothes dryer having a rear exhaust structure, a hot air outlet is provided around the entire front wall of the drum, and a hot air blocking material is pressed from the front side of the front wall to a portion other than a partial region of the hot air outlet. There is also known a configuration in which warm air is sent from only a partial region of the warm air outlet toward the rear of the drum (for example, Patent Document 4).

  Therefore, even in the clothes dryer having the rear blowing-front exhaust structure as described above, the hot air blocking material is applied to the portion other than the partial region of the hot air outlet provided on the entire inner wall of the drum from the rear surface side of the inner wall. It is conceivable to cover and cover the hot air blowing area.

  However, in such a configuration, since it is necessary to cover a relatively wide area where the hot air outlet is formed with a large hot air blocking material, the frictional resistance at the contact surface between the hot air blocking material and the drum is increased. An excessive load is applied to the motor for rotating the drum and the drum support. For this reason, there is a possibility that a malfunction may occur in these parts at an early stage. In addition, since the rotation of the drum is not stabilized due to the large frictional resistance, the clothes in the drum cannot be efficiently stirred, and drying unevenness is likely to occur, and there is a problem that a long time is required for drying.

JP-A-6-170097 JP-A-6-170093 JP 11-319395 A Japanese Utility Model Publication No. 53-47242

  This invention is made | formed in view of the above-mentioned situation, The objective of this invention is providing the clothes dryer which aimed at the improvement of durability and drying performance.

  A clothes dryer according to the present invention has a back wall, a cylindrical drum that opens to the clothes outlet side in front of the main body, a door that covers the clothes outlet, and air supply and exhaust of the air in the drum Supply / exhaust means to be performed, heating means for heating air supplied into the drum by the supply / exhaust means, a support shaft that is inserted through the center of the inner wall of the drum and rotatably supports the drum, and a drum of the support shaft And a cover plate that is fixed to the inner end in a non-rotating state and covers the entire front surface of the inner wall from the inside of the drum. A hot air outlet that exhausts the air in the drum to the outside of the drum. A hot air inlet for introducing the air heated by the heating means to the gap between the back wall and the cover plate is opened on the back wall of the drum, and the air led to the gap is opened on the cover plate. A hot air outlet that feeds into the drum is established.

  According to the clothes dryer, since the cover plate fixed in a non-rotating state is provided on the front side of the back wall of the drum, and the warm air outlet is provided on the cover plate, the cover plate is provided on the back wall of the drum. The hot air can be sent into the drum from a specific area of the cover plate without covering the hot air inlet with the hot air blocking material as described above. Accordingly, the load on the motor for rotating the drum and the drum support is reduced accordingly, and the rotation of the drum is also stabilized.

  In the clothes dryer, preferably, the cover plate is provided with a hot air outlet only at a position below the rotation center of the drum.

  During the drying operation, clothing tends to be collected in the space below the drum by centrifugal force and its own weight, but in this case, warm air is sent from the lower position to the drum from the center of rotation of the drum. The entire garment collected in the space below the drum can be reliably distributed.

  In the clothes dryer, a hot air blocking member is preferably provided between the outer periphery on the front side of the back wall and the outer peripheral edge of the cover plate.

  In this case, since the drum comes into contact with the cover plate in a state where the frictional resistance is small, the rotational frictional resistance of the drum is small and the load on the motor for rotating the drum and the drum support is small. Also, the drum rotation is stable.

  In the clothes dryer, preferably, the back wall and the support shaft are connected to each other through a bearing.

  In this case, since the drum is supported with a smaller frictional resistance with respect to the support shaft, the rotational frictional resistance of the drum is smaller and the load on the motor for rotating the drum and the drum support is smaller. Also, the rotation of the drum is more stable.

  In the clothes dryer, preferably, a clothing temperature sensor for detecting the temperature of the clothes is provided on the front surface of the cover plate.

  Since the cover plate is fixed in a non-rotating state, a clothing temperature sensor can be disposed on the front surface of the cover plate. In addition, since the cover plate has a hot air outlet, the temperature of the most heated clothing behind the drum can be detected by the clothing temperature sensor.

  In the clothes dryer, preferably, when the hot air outlet is opened only at a position below the center of rotation of the drum, the clothing temperature sensor is in front of the cover plate and in the circumferential direction with respect to the hot air outlet. It is provided at a position offset to

  If a clothing temperature sensor is provided at a position offset in the circumferential direction with respect to the warm air outlet opened at a position below the rotation center of the drum in the cover plate, the temperature of the clothing immediately after being heated by the warm air is further increased. It can be detected accurately.

  As described above, according to the present invention, hot air can be sent out from a specific region of the non-rotating cover plate fixed to the inner portion of the drum, and the load on the motor and the drum support portion is small. It is hard for problems to occur in these parts. In addition, since the clothes are efficiently stirred in the drum and the warm air is distributed throughout the clothes due to the stable rotation of the drum, uneven drying of the clothes hardly occurs. Therefore, durability and drying performance are improved.

  In addition, by making the structure that blows warm air directly on the clothing collected in the space below the drum, the warm air spreads more reliably to the entire clothing, so that uneven drying of clothes is less likely to occur. Drying performance is further improved.

  Furthermore, since the temperature of the clothes can be accurately detected, the clothes are hardly overheated, and the drying performance is further improved.

FIG. 1 is a schematic vertical sectional view in side view of a clothes dryer according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view around the lower part of the back wall of the drum in the clothes dryer according to the embodiment of the present invention. FIG. 3 is a front view schematic longitudinal sectional view of the clothes dryer according to the embodiment of the present invention. FIG. 4 is a schematic cross-sectional view around the lower part of the back wall showing a modification of the clothes dryer according to the embodiment of the present invention. FIG. 5 is a schematic front longitudinal sectional view showing a modification of the clothes dryer according to the embodiment of the present invention.

  Next, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  As shown in FIG. 1, a clothes dryer 1 according to an embodiment of the present invention covers a rectangular box-shaped main body case 11 and a clothing outlet 110 opened on the front of the main body case 11 from the front side. The outer door is configured by the door 12 to be operated.

  A cylindrical drum 13 having a circular opening 130 on the front side is accommodated in the main body case 11 in a lateral orientation. An annular ring plate 14 protrudes from the outer peripheral edge of the clothing outlet 110 on the drum 13 side, and a ring-shaped front seal member 201 is provided around the outer periphery of the ring plate 14. ing.

  The inner peripheral surface of the opening 130 of the drum 13 faces the outer peripheral surface of the ring plate 14 and is abutted and supported on the outer periphery of the front seal member 201. This prevents the air in the drum 13 from leaking from the opening 130 into the main body case 11.

  A circular concave portion 132 that bulges further rearward from the rear end of the body portion 131 is formed in the inner portion of the drum 13, and the central portion of the inner wall 133 of the concave portion 132 that corresponds to the inner wall of the drum 13. A cylindrical support shaft 15 is inserted through the shaft. Further, the rear end portion of the support shaft 15 is fixed to a drum support wall 111 erected in the main body case 11, and the inner wall 133 of the recess 132 has a bearing 151 on the outer periphery of the intermediate portion of the support shaft 15. It is connected through.

  A transmission belt 160 is wound around the outer periphery of the drum portion 131 of the drum 13. Further, the transmission belt 160 is connected to a drum motor 16 incorporated in the main body case 11, and the drum 13 is rotated around the support shaft 15 by the driving force of the drum motor 16.

  On the rear surface side of the drum support wall 111, there is a hot air duct 17 for sending indoor air taken into the main body case 11 from an air supply port (not shown) and combustion gas released from a burner unit 18 described later into the drum 13. It is arranged.

  The hot air duct 17 extends downward from the upper part of the rear surface of the drum support wall 111, and a heating means for heating indoor air taken into the drum 13 by a supply / exhaust fan 21 described later at the lower end thereof. As shown, a burner unit 18 is incorporated.

  The burner unit 18 includes a gas burner, a valve device, and the like. When a proportional valve in the valve device is opened, a predetermined amount of gas is introduced into the gas burner together with air guided to the periphery of the burner unit 18 by the draft effect. Then, the gas is ignited above the flame hole of the gas burner, and the combustion gas is discharged into the hot air duct 17.

  A gas outlet 170 is provided at the upper part of the front surface of the hot air duct 17 to lead the combustion gas released from the burner unit 18 to the gap 101 between the drum support wall 111 and the back wall 133 (hereinafter referred to as “back wall back passage”). Is provided. A plurality of air introduction holes 171 for taking in the air in the main body case 11 are formed in the rear wall of the hot air duct 17 and a side wall (not shown).

  On the other hand, a duct connection hole 112 communicating with the gas outlet 170 of the hot air duct 17 is provided in the upper part of the drum support wall 111, and indoor air taken into the main body case 11 and the hot air duct 17 from the burner unit 18. The combustion gas sent out to the rear wall is sent into the back wall passage 101 through the duct connection hole 112.

  An annular heat shield 113 is provided on the front surface of the drum support wall 111 and on the outer periphery of the support shaft 15 so as to surround the outer periphery of the support shaft 15 in the back wall back passage 101 with a predetermined interval. The combustion gas fed into the back wall passage 101 is prevented from coming into direct contact with the surfaces of the support shaft 15 and the bearing 151.

  A ring-shaped outer seal member 202 is provided around the outer periphery of the back wall 133 along the outer periphery of the peripheral wall 134 of the recess 132. The rear end of the outer seal member 202 protrudes rearward of the back wall 133, and the outer periphery of the protrusion is always in contact with the front surface of the drum support wall 111. This prevents the combustion gas fed into the back wall back passage 101 from leaking from between the drum support wall 111 and the back wall 133 into the main body case 11.

  A plurality of small circular holes (hereinafter referred to as “warm air inlets”) 135 are formed in an annular region having a predetermined width on the outer peripheral side of the heat shield plate 113 in the back wall 133 over the entire circumference. The indoor air and combustion gas fed into the back wall back passage 101 are guided to a gap (hereinafter referred to as “cover back passage”) 102 between the back wall 133 and a cover plate 153 described later through the hot air inlet 135. .

  A substantially disc-shaped fixing flange 152 extending in the outer peripheral direction is fixed to the front end portion of the support shaft 15. Further, substantially the entire front surface of the back wall 133 is disposed on the front surface of the fixing flange 152. A disk-shaped cover plate 153 that covers from the inside is fixed in a non-rotating state. All of the hot air inlets 135 provided on the back wall 133 are disposed on the rear surface side of the cover plate 153.

  As shown in FIG. 2, the outer peripheral edge of the cover plate 153 is bent approximately 90 degrees to the rear (back wall 133 side), and the end 155 of the bent portion 154 is formed by curling. It is curved in the shape of a circular arc in the direction of 153.

  A gap having a predetermined width is provided between the outer peripheral surface of the bent portion 154 and the inner peripheral surface of the peripheral wall 134 of the recess 132 so that the opposing surfaces do not contact each other even when the drum 13 rotates. It has become.

  At the front end of the peripheral wall 134, a flat portion 136 that extends in the outer peripheral direction is formed. The flat portion 136 is formed on substantially the same plane as the front surface of the cover plate 153, and the garment M is not easily caught in the gap between the bent portion 154 and the peripheral wall 134. In addition, an inclined surface portion 137 is formed on the outer periphery of the flat surface portion 136 so as to increase in diameter toward the front of the outer periphery of the drum 13, and the outer peripheral edge on the front end side of the inclined surface portion 137 is the rear end peripheral edge of the body portion 131. It is connected.

  A ring-shaped inner seal member serving as a hot air blocking member is provided between the outer periphery of the front surface of the back wall 133 and the outer peripheral side of the hot air inlet 135 forming area and the bent portion 154 that is the outer peripheral edge of the cover plate 153. 203 is provided. The front surface of the inner seal member 203 is formed in a substantially flat shape, and the terminal end 155 of the bent portion 154 is always in contact with the flat portion. As a result, the combustion gas guided to the cover back passage 102 is prevented from leaking into the drum 13 from the gap.

  As shown in FIGS. 1 and 3, the cover plate 153 is led to the cover back passage 102 in a circular arc region having a predetermined width near the outer periphery and below the rotation axis (rotation center) CL of the drum 13. A plurality of small circular holes (hereinafter referred to as “warm air outlets”) 150 for sending indoor air and combustion gas to the internal space of the drum 13 are formed.

  A clothing temperature sensor 19 for detecting the temperature of the clothing M accommodated in the drum 13 is provided on the front surface of the cover plate 153 and below the rotation axis CL of the drum 13. The clothing temperature sensor 19 is disposed adjacent to a position offset in the circumferential direction (in this case, the clockwise direction in the front view) from the region where the warm air outlet 150 is formed.

  Although not shown, a heat insulator is sandwiched between the outer periphery of the clothing temperature sensor 19 and the sensor mounting hole provided in the cover plate 153, and the heat of the combustion gas guided to the cover back passage 102 covers the cover. Transmission to the clothing temperature sensor 19 through the plate 153 is prevented. The lead wire connected to the clothing temperature sensor 19 extends through the gap between the fixed flange 152 and the cover plate 153 and further through the hollow portion of the support shaft 15 into the main body case 11.

  As shown in FIG. 1, a circular trapezoidal front lid portion 120 that is inserted into the clothing outlet 110 when the door 12 is closed is formed inside the door 12 (on the clothing outlet 110 side). Further, a filter cover 122 having a plurality of small circular holes (hereinafter referred to as “warm air discharge ports”) 121 is attached to the center of the front lid portion 120 in a detachable state.

  The warm air outlet 121 is connected to the internal space 103 of the front lid 120 via an air filter 123 attached to the inside of the filter cover 122. In addition, a connection port 124 that opens to the exhaust inlet 114 that is opened at the inner peripheral upper portion of the clothing outlet 110 is opened in the upper outer peripheral portion of the front lid portion 120 when the door 12 is closed.

  An exhaust duct 20 that connects the internal space 103 of the front lid 120 and the outside of the main body case 11 is formed above the drum 13 in the main body case 11. The exhaust duct 20 has one end connected to the exhaust inlet 114 and the other end connected to an exhaust outlet 115 opened on the upper surface of the main body case 11.

  In the middle of the exhaust duct 20, room air is taken into the main body case 11, the indoor air and the combustion gas released from the burner unit 18 are guided into the drum 13, and the outside of the main body case 11 through the exhaust duct 20. A supply / exhaust fan 21 is incorporated as a supply / exhaust means for discharging.

  Therefore, when the air supply / exhaust fan 21 is operated with the door 12 closed, the air in the drum 13 is guided from the hot air discharge port 121 to the internal space 103 of the front lid 120 and further passes through the exhaust duct 20. It is discharged from the exhaust outlet 115 to the outside of the main body case 11. Along with this, indoor air taken into the main body case 11 from an air supply port (not shown) and combustion gas released from the burner unit 18 are led to the back wall passage 101 through the hot air duct 17, Further, it passes through the cover back passage 102 and is fed into the drum 13 from the hot air outlet 150 below the cover plate 153.

  The drying operation in the clothes dryer 1 will be described in detail. First, when the drying operation is started, the air supply / exhaust fan 21 is rotated, the drum motor 16 is driven, the drum 13 is rotated, and the burner unit is further rotated. The combustion gas starts to be released from 18. Then, while the air in the main body case 11 is heated by the combustion gas, it is guided into the warm air duct 17 together with the combustion gas, and sent into the back wall passage 101 through the gas outlet 170.

  Further, the combustion gas and high-temperature air sent to the back wall back passage 101 are guided to the cover back passage 102 through the hot air inlet 135 formed over substantially the entire circumference of the back wall 133, and the cover plate 153. From the hot air outlet 150 to the lower space in the drum 13.

  The moisture of the clothing M collected in the space below the drum 12 is taken into the internal space 103 of the front lid 120 through the warm air outlet 121 on the opening 130 side, and further passes through the exhaust duct 20 to the exhaust outlet 115. To the outside of the main body case 10.

  As a result, the clothes M are gradually dried while being stirred in the rotating drum 13. At this time, if the temperature of the garment M in contact with the garment temperature sensor 19 is higher than a predetermined temperature, the proportional valve (not shown) is throttled to a predetermined opening to reduce the amount of released combustion gas and the degree of heating of air. On the other hand, if the temperature is lower than the predetermined temperature, a proportional valve (not shown) is opened to a predetermined opening to increase the amount of combustion gas released and increase the degree of heating of the air.

  When the clothes M are in a predetermined dry state, a gas burner (not shown) is extinguished to stop the release of combustion gas from the burner unit 18, and the rotation of the air supply / exhaust fan 21 and the drum 13 is stopped to perform the drying operation. finish.

  Thus, according to the said embodiment, it is comprised so that warm air may be sent out from the warm air blower outlet 150 of the cover board 153 fixed to the front side of the back wall 133 in the non-rotation state, and a specific area | region In order to send out the warm air from the hot air inlet, it is not necessary to press the hot air blocking material against the formation region of the hot air inlet to cover a part of the hot air inlet as described above. It can be made smaller. Accordingly, an excessive load is hardly applied to the transmission belt 160 and the drum motor 16 and the load on the drum support portion such as the support shaft 15 and its fixed portion is also reduced. Therefore, defects (deterioration of the performance of the drum motor 16, deformation of the support shaft 15, wear of the transmission belt 160 and the inner seal member 203) are unlikely to occur. In addition, since the rotation of the drum 13 can be stabilized, the clothes M are efficiently stirred in the drum 13 during the drying operation, and the hot air is distributed throughout the clothes M. Therefore, the drying unevenness of the clothing M hardly occurs.

  Further, by arranging the hot air outlet 150 only at a position below the rotation axis CL of the drum 13, the hot air can be reliably distributed to the entire clothing M collected in the space below the drum 13. Therefore, the unevenness of drying of the clothing M is less likely to occur.

  Furthermore, since the terminal end 155 of the outer peripheral edge of the cover plate 153 is configured to be in line contact with the flat portion of the inner seal member 203 provided on the front outer periphery of the rear wall 133 of the drum 13, the outer periphery of the rear wall 133 is covered. Since it is supported with a small frictional resistance with respect to the plate 153, the rotational frictional resistance of the drum 13 is small, and the load on the transmission belt 160, the drum motor 16, and the drum support portion is accordingly reduced. Further, the rotation of the drum 13 is also stabilized. Therefore, it is hard to produce a malfunction in each of those parts, and the clothes M hardly dry.

  Since the back wall 133 of the drum 13 and the support shaft 15 are connected by the bearing 151, the central portion of the back wall 133 of the drum 13 is supported with a smaller frictional resistance with respect to the support shaft 15. The rotational frictional resistance of the drum 13 is smaller, and the load on the transmission belt 160, the drum motor 16, and the drum support portion is smaller accordingly. Further, the rotation of the drum 13 is further stabilized. Therefore, it is hard to produce a malfunction in these each part, and the drying nonuniformity of the clothing M is hard to produce.

  Further, the cover plate 153 is formed in a size that covers substantially the entire front side of the back wall 133, and the warm air outlet 150 is disposed at a position closer to the bottom in the drum 13, so that the warm air can be transferred to the entire clothing M. Can be distributed more reliably.

  Further, by arranging the clothing temperature sensor 19 on the front surface of the cover plate 153 and below the rotation axis CL of the drum 13, the clothing M having the highest temperature collected in the space below the drum 13 is the clothing temperature sensor. Since it is easy to contact the surface of 19 and the temperature state of the clothing M can be reliably detected, it is possible to appropriately adjust the temperature of the hot air in accordance with the temperature state.

  In particular, during the drying operation, the garment M is stirred while being lifted in the rotation direction (in the above embodiment, the clockwise direction in the front view) as the drum 13 rotates. Since it is disposed adjacent to a position offset in the circumferential direction from the region where the hot air outlet 150 is formed, the garment M immediately after being heated in front of the hot air outlet 150 contacts the surface of the clothing temperature sensor 19. It is easy to adjust the degree of heating of the air based on the temperature of the clothing M immediately after being heated.

  Therefore, for example, even if a large amount of clothing M is put in the drum 13 and a control operation for supplying hot hot air into the drum 13 from the initial stage of the drying operation is performed, the clothing M in the drum 13 is overheated. Before it becomes, the temperature of the hot air can be adjusted appropriately. Thereby, the dry finish of the clothing M is favorable.

  In the above embodiment, the end 155 of the bent portion 154 formed to be bent rearward of the cover plate 153 is always in contact with the front surface of the inner seal member 203 provided on the front outer periphery of the back wall 133. 4 is configured to block leakage of warm air from the gap, but as shown in FIG. 4, the bent portion 154 of the cover plate 153 has a cross-sectional circle toward the rear of the cover plate 153 by curling. An inner seal member 203 is provided along the peripheral wall 134 of the recess 132 on the outer periphery on the front side of the back wall 133, and is bent on the inner peripheral surface of the inner seal member 203. It may be configured such that the leakage of warm air from the gap is blocked by the 154 always contacting.

  In the above embodiment, the clothing temperature sensor 19 is disposed on the front surface of the cover plate 153 and below the rotation axis CL of the drum 13 and at a position offset in the circumferential direction from the region where the hot air outlet 150 is formed. However, as shown in FIG. 5, a plurality of hot air outlets 150 are formed, the front surface of the cover plate 153 is below the rotation axis CL of the drum 13, and the rotation axis (rotation center) CL is The clothing temperature sensor 19 may be disposed on the vertical center line that passes therethrough.

DESCRIPTION OF SYMBOLS 1 ... Clothes dryer 110 ... Clothes outlet 12 ... Door 121 ... Warm air discharge port 13 ... Drum 133 ... Back wall 15 ... Spindle 150 ... Warm air outlet 151 ... Bearing 153 ... Cover plate 154 ... Bent part (outer periphery)
102 ... Cover back passage (gap)
203 ... Inner seal member (warm air blocking member)
18 ... Burner unit (heating means)
19 ... Cloth temperature sensor 21 ... Air supply / exhaust fan (supply / exhaust means)
CL ・ ・ ・ Rotation axis (Drum rotation center)
M ... clothing

Claims (6)

A cylindrical drum having a back wall and opening to the clothing outlet side on the front of the main body, a door covering the clothing outlet, an air supply / exhaust means for supplying and exhausting air in the drum, and an air supply / exhaust means Heating means for heating the air supplied into the drum, a support shaft inserted through the center of the back wall of the drum and rotatably supporting the drum, and an end of the support shaft inside the drum in a non-rotating state A cover plate that is fixed and covers substantially the entire front surface of the back wall from the inside of the drum,
Inside the door, a hot air outlet that opens the air inside the drum to the outside of the drum is opened,
On the back wall of the drum, a hot air inlet is introduced to guide the air heated by the heating means to the gap between the back wall and the cover plate,
The cover plate is provided with a hot air outlet for sending out air guided to the gap into the drum. The clothes dryer according to claim 1,
The clothes dryer is provided with a hot air outlet in the cover plate only at a position below the rotation center of the drum. The clothes dryer according to claim 1 or 2,
A clothes dryer in which a hot air blocking member is provided between the outer periphery of the front side of the back wall and the outer peripheral edge of the cover plate. The clothes dryer according to any one of claims 1 to 3,
The back wall and the support shaft are connected to each other through a bearing. The clothes dryer according to any one of claims 1 to 4,
A clothes dryer provided with a clothing temperature sensor for detecting the temperature of clothing on the front surface of the cover plate. The clothes dryer according to claim 5,
When the hot air outlet is opened only at a position below the rotation center of the drum,
The clothes temperature sensor is a clothes dryer provided at a position offset in a circumferential direction with respect to the warm air outlet in front of the cover plate.

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