JP2013236695A - Clothes dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve an easy removal of captured lint from a mesh part.SOLUTION: A clothes dryer includes a dry filter device 21 which captures lint contained in drying air. The dry filter device 21 includes: a filter part 21b having a mesh part 21e which captures lint; a lint reservoir 21c provided at the side of the filter part 21b; and a lint removal device 22 which scrapes off lint captured at the mesh part 21e. The clothes dryer is configured in such a manner that the lint scraped off at the lint removal device 22 is moved toward the lint reservoir 21c, and a gap between the lint removal device 22 and the mesh part 21e gradually increases from the filter part 21b to the lint reservoir 21c.

Description

  The present invention relates to a clothes dryer for drying textiles such as clothes.

  Conventionally, in this type of clothes dryer, lint generated from textiles such as clothes is mixed in the drying air, and adheres to and accumulates on the air blowing means provided in the circulation air passage, causing deterioration in function. A lint filter that captures lint from the drying air is provided in the circulation air passage. As the drying operation progressed, lint separated from clothing, etc. was captured and deposited on the filter, and the ventilation resistance of the drying air passing through the circulation air passage increased and the air volume decreased, so it was captured by the filter. It is considered to remove lint (see, for example, Patent Document 1).

  FIG. 12 shows the configuration of the filter portion of the conventional washing and drying machine described in Patent Document 1. As shown in FIG. As shown in FIG. 12, the downstream side of the mesh portion 51 that captures lint is formed in a cylindrical shape, and a conical inclined surface 53 is provided on the introduction portion 52 side so that the upstream side has a large diameter. In addition, a lever 54 having a wedge-shaped cross section is in contact therewith. The lever 54 is attached to a motor rotation shaft 57 of a motor 56 that drives the lint scraping portion 55.

  With the above configuration, since the inclined surface 53 is provided on the introduction portion 52 side of the mesh portion 51, the flow of drying air becomes smooth, and the lint attached to the inclined surface 53 rotates with the motor rotating shaft 57. The lint that has been scraped off and attached to the cylindrical portion on the downstream side is scraped off by the lint scraping portion 55 and sequentially sent to the lint storage portion 58.

JP 2006-102346 A

  However, in the conventional configuration, the lint is sandwiched between the mesh portion 51 and the inclined surface 53, the lint scraping portion 55, and the lever 54, which may impede the driving of the lint scraping portion 55 and the lever 54. . In particular, the lint scraped off while the lint moves to the lint reservoir 58 is united and gradually increases, so that the force that hinders driving when pinched is large. When lint cannot be scraped off, lint gradually accumulates on the mesh portion 51 as the drying operation proceeds, and the ventilation resistance increases and the flow rate of the drying air decreases. As a result, there are problems that the drying operation is prolonged and the drying operation is finished while being dried.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a clothes dryer capable of easily removing captured lint from a mesh portion.

In order to solve the above-described conventional problems, a clothes dryer according to the present invention includes a drying chamber for storing a drying target such as clothes, and a circulating air that circulates drying air discharged from the drying chamber to the drying chamber again. A drying filter device that captures lint contained in drying air that is disposed in the circulation air passage and is generated from a drying target. The drying filter device includes: A filter part having a mesh part for catching, a lint reservoir part provided on a side of the filter part, and a lint removing device for scraping lint caught by the mesh part, and scraping by the lint removing apparatus. The lint is moved toward the lint reservoir, and the gap between the lint removing device and the mesh is gradually increased from the filter unit to the lint reservoir. Those that are configured so that.

  As a result, the lint that is scraped off by the filter unit and merges as it moves toward the lint storage unit and gradually increases can be prevented from being caught in the gap between the lint removing device and the mesh unit. It is possible to prevent the lint from being caught between the lint removing device and the mesh portion and locking the lint removing device. In addition, in order to prevent the lint from being caught, the friction resistance between the lint removing device and the filter unit can be eliminated as compared with the case where no gap is provided between the lint removing device and the mesh portion. It can be driven with a slight force, the lint removal operation is not hindered by the lint scraped off, and a good lint removal operation can be performed, and thus a good drying operation can be continued. .

  The clothes dryer of the present invention can accurately remove the captured lint from the mesh portion, and can perform a drying operation satisfactorily.

Sectional drawing of the principal part of the clothes dryer in Embodiment 1 of this invention. External perspective view of the clothes dryer with the drying filter device removed Perspective view of the drying filter device of the clothes dryer Perspective view of the drying filter device of the clothes dryer Rear view of the drying filter device of the clothes dryer Front view of the drying filter device of the clothes dryer Action diagram when the drying filter device of the clothes dryer is installed Side view of the drying filter device of the clothes dryer AA sectional view of the drying filter device of the clothes dryer in FIG. Fig. 9 is an enlarged view of the drying filter device. Sectional drawing of the principal part of the dry filter apparatus in Embodiment 2 of this invention Configuration diagram of the filter section of a conventional washer / dryer

According to a first aspect of the present invention, there is provided a clothes dryer including a drying chamber for storing a drying target such as clothes, a circulation air passage for circulating the drying air discharged from the drying chamber to the drying chamber, and a circulation air passage. A blower that blows air, and a drying filter device that is disposed in the circulation air passage and captures lint contained in drying air generated from a drying target, the drying filter device having a mesh portion that captures lint A lint reservoir provided on a side of the filter unit, and a lint removing device that scrapes lint captured by the mesh unit, and the lint scraped off by the lint removing device is transferred to the lint reservoir. And the gap between the lint removing device and the mesh portion is configured to gradually increase from the filter portion to the lint reservoir portion. The lint, which is scraped off by the filter unit and moves toward the lint reservoir, is gradually combined with the lint removal device and the mesh unit. Can be prevented from being caught between the lint removing device and the mesh portion and locking the operation of the lint removing device. In addition, in order to prevent the lint from being caught, the friction resistance between the lint removing device and the filter unit can be eliminated as compared with the case where no gap is provided between the lint removing device and the mesh portion. It can be driven with a slight force, and the lint removal operation is not hindered by the lint scraped off, so that a good lint removal operation can be performed, and thus a good drying operation can be continued. .

  According to a second aspect of the invention, in the first aspect of the invention, the filter portion is formed in a substantially arc shape, the lint removing device includes a lint removing device rotating shaft coaxial with the mesh portion, and the mesh from the lint removing device rotating shaft. A lint scraping part extending toward the part, and the distance from the lint removing device rotating shaft to the tip of the lint scraping part is configured to gradually decrease from the filter part to the lint reservoir part, In addition to the function and effect of the first invention, the distance from the rotation shaft of the lint removing unit on the lint reservoir side to the tip of the lint scraping portion is shortened, so that lint is removed at the tip of the lint scraping portion or The rotational torque required for the lint removal device to be moved can be reduced, and the lint scraping operation can be facilitated.

  According to a third aspect of the invention, in particular, in the first or second aspect of the invention, the filter portion is formed in a substantially arc shape, the lint removing device includes a lint removing device rotating shaft coaxial with the mesh portion, and the lint removing device rotating shaft. A lint scraping part extending from the filter part to the mesh part, and the radius of the mesh part around the rotation axis of the lint removing device is gradually increased from the filter part to the lint reservoir part, thereby removing As the lint moves, the lint reservoir gradually closes. However, as the radius of the mesh increases toward the lint reservoir, the volume of the lint reservoir increases, resulting in more lint. It becomes possible to accumulate.

  In the fourth invention, in particular, the lint scraping portion of any one of the first to third inventions is formed in a spiral shape along the mesh portion, so that lint scraped off simultaneously with the lint scraping operation. Can be moved in the direction of the lint removing device rotating shaft and can be accommodated in the lint reservoir.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a cross-sectional view of an essential part of a clothes dryer according to the first embodiment of the present invention, FIG. 2 is an external perspective view of the clothes dryer with a drying filter device removed, and FIGS. FIG. 5 is a rear view of the dry filter device, FIG. 6 is a front view of the dry filter device, and FIGS. 7A to 7C are attached to the dry filter device. FIG. 8 is a side view of the dry filter device, FIG. 9 is a cross-sectional view of the dry filter device taken along the line AA in FIG. 8, and FIG. B part enlarged view, (b) is the C part enlarged view, (c) is the D part enlarged view.

  1 to 10, the outer tub 1 is elastically supported by a plurality of suspension mechanisms 3 inside a main body 2 of a clothes dryer. The drum (drying chamber) 4 has a loading port 6 for taking in and out the laundry 5 on the front side, is configured in a bottomed cylindrical shape, and is disposed in the outer tub 1. The drum 4 is provided so as to be rotatable by a drum rotating shaft 4 a and stores the laundry 5. A plurality of discharge holes 8 are provided on the peripheral side wall 7 of the drum 4 over the entire circumference.

  On the inner surface of the peripheral side wall 7 of the drum 4, a stirring baffle 9 for lifting the laundry 5 in the rotation direction of the drum 4 is projected inward. The outer tub 1, the drum 4, and the drum rotation shaft 4a are disposed so as to be inclined forward and upward at an angle θ (for example, 20 °) with respect to the horizontal.

A motor 10 that rotationally drives the drum 4 is provided outside the back surface of the outer tub 1, and the drum 4 is rotated forward and backward via a drum rotation shaft 4a. The motor 10 is constituted by a brushless DC motor, and the rotation speed can be freely changed by inverter control. A door 11 that opens and closes the insertion port 6 is provided on the front surface of the main body 2. The opening 12 of the outer tub 1 facing the charging port 6 is connected to the main body 2 with airtightness by a flexible packing 13 that can be expanded and contracted.

  A blower 14 for supplying drying air to the drum 4 is provided at the upper part on the back side in the main body 2, and a heating means 15 is provided on the downstream side of the blower 14. The blower 14 and the heating means 15 are provided in the circulation air passage 16. The outlet of the drying air on the downstream side of the circulation air passage 16 is connected to the blower port 17 provided on the back surface of the outer tub 1, and the inlet of the drying air on the upstream side is connected to the peripheral side wall 7 of the outer tub 1. The exhaust port 18 provided in the upper front portion is connected in communication.

  The drying air discharged from the discharge port 8 of the drum 4 into the outer tub 1 enters the circulation air passage 16 from the exhaust port 18, and the drying air blown by the blower 14 passes through the heating means 15 and is heated. Then, the air is introduced into the drum 4 from the air outlet 17 and circulates. 1 indicates the flow of the drying air.

  The circulation air passage 16 includes a cooling water supply port 19 that supplies cooling water to dehumidify the drying air, a heat exchanger 20 that is cooled by the cooling water supplied from the cooling water supply unit 19, and drying air. Is provided with a dry filter device 21 for capturing lint contained therein. The drying air that has become wet due to contact with the laundry 5 in the drum 4 is cooled and dehumidified by the heat exchanger 20. The cooling water and the dehumidified water are discharged out of the main body 2.

  The drying filter device 21 is provided on the upstream side of the blower 14 and captures lint contained in the drying air generated from the laundry 5 so that the lint adheres to and accumulates on the heat exchanger 20 and the blower 14. To prevent malfunctions.

  The blower 14 includes a fan motor 14a that drives the blower 14 and a motor current measuring device 14b that measures the current value of the fan motor 14a.

  The drying filter device 21 includes an introduction part 21a for introducing drying air, a filter part 21b for capturing lint from the drying air introduced from the introduction part 21a, a lint reservoir part 21c for accommodating lint, and a filter part 21b. 21d and an lint removing device 22 for guiding the remaining drying air that has not passed through the lint reservoir 21c to the lint reservoir 21c. An opening 21d is provided adjacent to the side of the filter portion 21b.

  The filter portion 21b and the lint reservoir portion 21c include a first mesh portion (mesh portion) 21e and a second mesh portion 21f each having a substantially cylindrical shape, and the drying air passes through the first mesh portion 21e and the second mesh portion 21f. When passing, lint contained in the drying air is captured by the dry filter device 21.

  The first mesh portion 21e and the second mesh portion 21f have a coaxial shape that expands in the radial direction from the filter portion 21b toward the lint reservoir portion 21c. The first mesh portion 21e and the second mesh portion 21f are formed in an arc shape so that the drying air introduced from the introduction portion 21a swells downstream from the drying filter device 21, and the center of the arc is lint removed. It is concentric with the device rotation shaft 23b.

  The lint removing device 22 includes a lint scraping portion 23 formed in a spiral shape inscribed along the first mesh portion 21e. The spiral shape of the lint scraping portion 23 is formed so as to gradually decrease in the radial direction from the filter portion 21b toward the lint reservoir portion 21c. The tip of the lint scraping part 23 is made of a flexible elastomer.

  The dry filter device 21 is detachably provided on the upper surface of the main body 2 in the direction of arrow B. In the main body 2, a main body motor 24 for driving the lint removing device 22 and a motor gear 26 attached to the tip of the main body motor rotating shaft 25 are provided.

  When the dry filter device 21 is mounted on the circulation air passage 16 from the upper surface of the main body 2, the lint removing device rotation shaft 23b provided as the rotation shaft of the lint scraping portion 23 is parallel to the main body motor rotation shaft 25, and The drying filter device 21 is provided at an oblique position with respect to the attaching / detaching direction B. A lint removing device gear 22a is provided at the tip of the lint removing device rotating shaft 23b, and when the dry filter device 21 is mounted on the main body 2, it engages with the motor gear 26 to remove the rotational drive of the main body motor 24. Communicate to device 22.

  As shown in FIG. 8, when the dry filter device 21 is viewed from the main body motor 24 side, the lint removing device rotation shaft 23b is located on the right side of the main body motor rotation shaft 25, and the rotation direction of the motor gear 26 at this time is the clock indicated by the arrow c. The rotation direction of the lint removing device gear 22a is counterclockwise as indicated by the arrow D.

  The spiral shape of the lint scraping part 23 is a right-handed screw direction. The rotation direction of the main body motor 24 at the time of lint removal is clockwise when viewed from the viewpoint where the removal device rotation shaft 23b, which is the rotation shaft of the lint removal device 22, is on the right side of the motor rotation shaft 25.

  The lint removing device gear 22a is provided with a magnet 22c. When the dry filter device 21 is mounted on the main body 2, the main body 2 is provided with a hall sensor 28 so as to face the lint removing device gear 22a. The magnet 22c repeatedly approaches and separates from the hall sensor 28 as the lint removing device gear 22a rotates. The magnet 22c and the hall sensor 28 are combined to constitute a lock detection device 29.

  The control unit 30 controls the motor 10, the blower 14, the heating unit 15, the cooling water supply unit 19, the main body motor 24, and the like, and controls the drying operation. Further, the control means 30 performs the operation of the lint removing device 22 by driving the main body motor 24, the calculation processing of the current value measured by the motor current measuring device 14b, the calculation processing of the output of the hall sensor 28, and the like. The clogged state in the dry filter device 21 is detected by performing a calculation process on the current value measured by the motor current measuring device 14b.

  Further, a clogging notification means 31 that notifies when the lint is clogged, and a notification when the lint removal device 22 is locked when the lint or the like bites into the lint removal device 22 are provided on the front upper portion of the main body 2. Lock notification means 32 is provided.

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. In the drying step, the laundry 4 wet with the drum 4 is housed inside and rotated. The drying air is blown by the blower 14, passes through the heating means 15, and then is introduced into the drum 4 through the blower port 17.

  The drying air introduced into the drum 4 comes into contact with the wet laundry 5 and removes moisture from the laundry 5, and then is discharged from the discharge port 8 of the drum 4 including lint generated from the laundry 5. Then, the air is introduced into the circulation air passage 16 from the exhaust port 18 provided in the outer tub 1.

Before the drying air introduced into the circulation air passage 16 reaches the heat exchanger 20, the lint is removed by the drying filter device 21 and cooled and dehumidified by the heat exchanger 20. The drying air that has been cooled and dehumidified becomes low-temperature dry drying air, passes through the heating means 15, becomes high-temperature dry air, and is introduced into the drum 4 from the blower port 17.

  The lint scraping unit 23 of the lint removing device 22 automatically performs lint removal through driving of a main body motor 24 provided in the main body 2, so that maintenance work can be reduced and convenience is enhanced. The lint scraping unit 23 rotates so that the number of spiral turns (for example, 3 turns) at least once per lint removal operation, and preferably rotates a plurality of times to remove lint.

  As a result, the lint scraped off at one end of the lint scraping part 23 (on the filter part 21b side) can be moved to the other end (on the lint storage part 21c side) by a single lint removal operation. Therefore, all the lint scraped off can be moved to the lint storage part 21c side by one lint removing operation, and the lint remaining in the filter part 21b can be prevented.

  Further, when the dry filter device 21 is mounted, the lint removing device rotating shaft 23b is parallel to the main body motor rotating shaft 25 provided in the main body 2 and is disposed at an oblique position with respect to the attaching / detaching direction b. The rotation direction of the main body motor 24 is clockwise when viewed from the viewpoint that the lint removing device rotation shaft 23 b is on the right side of the main body motor rotation shaft 25.

  As a result, the external force applied from the main body motor 24 to the lint removing device 22 at the time of lint removal does not always include a component in the direction in which the dry filter device 21 is pulled out. Therefore, the rotational drive received from the main body motor 24 during lint removal can be satisfactorily transmitted via the lint remover gear 22a, and lint removal can be performed reliably.

  In addition, when the dry filter device 21 is mounted, when the lint removing device gear 22a and the motor gear 26 are to be mounted at positions where they do not mesh with each other, the lint removing device gear 22a at the contact point 22b where the lint removing device gear 22a and the motor gear 26 are in contact with each other. Since the reaction force of filter insertion acts in the tangential direction, the lint removing device gear 22a is mounted so as to mesh with the motor gear 26 while rotating. Therefore, when the dry filter device 21 is mounted, there is no fear of damage due to further mounting force while the gears collide with each other, and the dry filter device 21 can be mounted smoothly.

  The dry filter device 21 includes a first mesh portion (mesh portion) 21e having a substantially semi-cylindrical shape, and the lint removing device 22 includes a lint scraping portion 23 formed in a spiral shape along the first mesh portion 21e. It is a thing. The tip of the lint scraping part 23 is made of a flexible elastomer or the like.

  As a result, the lint scraping portion 23 applies a force in the radial direction and the thrust direction of the mesh to the lint captured on the surface of the first mesh portion 21e when scraping the lint with the spiral tip portion. Since it moves in the direction Z along the lint removing device rotating shaft 23b while being scraped off, it is possible to prevent the scraped lint from flowing into the drying air and reattaching to the mesh.

  Further, the apparatus includes an introduction portion 21a for introducing drying air, a filter portion 21b for capturing lint from the drying air adjacent to the introduction portion 21a, and a lint reservoir portion 21c provided on the side of the filter portion 21b. Since the lint scraped off by the removing device 22 is moved toward the lint reservoir portion 21c, the filter portion 21b into which the drying air is first introduced through the introduction portion 21a is Among them, it becomes a main ventilation part, and at the same time, it can be excellent in ventilation of drying air without lint.

  Since the lint reservoir portion 21c is provided with the second mesh portion 21f, the lint reservoir portion 21c can be used as a ventilation portion when lint is not deposited, and can be used as a lint reservoir portion when lint is accumulated. .

  Further, when a large amount of lint accumulates in the lint reservoir portion 21c, it is necessary to remove the lint by removing the dry filter device 21, but the filter portion 21b which is the main ventilation portion of the dry filter device 21 and the lint Since the accumulated lint reservoir 21c can be integrated and detached, the lint in the lint reservoir 21c can be removed, and at the same time, the filter 21b can be clogged and foreign matter can be checked, thereby increasing convenience. .

  Further, an opening 21d is provided adjacent to the side of the filter portion 21b. Since normal pressure loss occurs in the filter unit 21b, not all of the drying air introduced into the filter unit 21b passes through the filter unit 21b and exits from the drying filter device 21. The air is guided to the lint reservoir 21c through the opening 21d.

  At that time, the drying air that could not pass through the filter portion 21b once collides with the filter portion 21b, and then forms a flow Y along the filter portion 21b. Therefore, if the opening 21d is provided adjacent to the side of the filter portion 21b, the drying air that could not pass through the filter portion 21b passes along the filter portion 21b, passes through the opening 21d, and the lint reservoir portion. The state led to 21c can be created.

  Accordingly, it is possible to artificially generate a flow of drying air that guides the removed lint to the lint reservoir 21c along the filter portion 21b from which lint is removed. As a result, in addition to the lint moving effect by the spiral lint scraping part 23, more lint is scraped off by the filter part 21b by the action of the drying air, and then quickly moved to the lint storage part 21c. It is possible to effectively prevent recapture at the filter unit 21b.

  The lint removing device 22 is configured such that the distance L between the lint scraping part 23 and the first mesh part 21e increases as it goes from the first filter part 21b to the lint reservoir part 21c as shown in FIG. Yes. The distance L1 of the portion B farthest from the lint reservoir 21c is narrow, and the distance L3 of the portion D close to the lint reservoir 21c is increased.

  That is, when the distance between the B part is L1, the distance between the D part is L3, and the distance between the C part between the B part and the D part is L2, L1 <L2 <L3 is configured and lint removal is performed. The distance between the device 22 and the mesh portion 21e, that is, the gap is gradually increased from the filter portion 21b to the lint reservoir portion 21c. For example, L1 is changed to 1 mm, L2 is set to 2 mm, and L3 is set to about 3 mm, and the optimum distance is set according to practical use.

  As a result, the lint scraped off by the filter unit 21b and united and enlarged as it moves toward the lint reservoir portion 21c gradually increases from the filter portion 21b to the lint reservoir portion 21c. Since the lint scraping part 23 of the lint removing device 22 and the first mesh part 21e (mesh part) are not easily sandwiched, the lint is sandwiched between the lint scraping part 23 and the first mesh part 21e. Thus, the lint removing device 22 can be prevented from being locked.

Further, in order to prevent the lint from being caught, the frictional resistance between the lint removing device 22 and the filter part 21b can be prevented as compared with the case where no gap is provided between the lint scraping part 23 and the mesh part 21e. The lint removing device 22 can be driven with a slight force. Therefore, the lint scraped off can continue a good lint removal operation and, in turn, a good drying operation without inhibiting the lint removal action.

  When the gap between the lint removing device 22 and the mesh portion 21e is configured to gradually increase from the filter portion 21b to the lint reservoir portion 21c, the distance from the lint removing device rotating shaft 23b to the tip of the lint scraping portion 23 is set as follows. This can be realized by gradually decreasing from the filter part 21b to the lint reservoir part 21c.

  As a result, the distance from the lint removing device rotating shaft 23b to the tip of the lint scraping portion 23 is shortened on the lint reservoir portion 21c side, so that lint removal or lint movement is performed at the tip of the lint scraping portion 23. In addition, the rotational torque required for the lint removing device 22 can be reduced, and the lint scraping operation can be facilitated.

  As another example, it can be realized by gradually increasing the radius of the mesh portion 21e around the lint removing device rotation shaft 23b from the filter portion 21b to the lint reservoir portion 21c. Furthermore, it is also possible to carry out by combining both of these.

  As described above, in the present embodiment, the drying chamber 4 that stores the drying object such as clothes, the circulation air passage 16 that circulates the drying air discharged from the drying chamber 4 to the drying chamber 4 again, and the circulation A blower 14 that blows air to the air path 16 and a dry filter device 21 that is disposed in the circulation air path 16 and captures lint contained in the drying air generated from the object to be dried are included. The dry filter device 21 captures lint. A filter portion 21b having a mesh portion 21e, a lint reservoir portion 21c provided on the side of the filter portion 21b, and a lint removing device 22 for scraping lint captured by the mesh portion 21e. The scraped lint is configured to move toward the lint storage portion 21c, and the clearance between the lint removing device 22 and the mesh portion 21e is removed from the filter portion 21b. The lint is gradually increased toward the lint reservoir 21c. The lint that is scraped off by the filter unit 21b and unites as it moves toward the lint reservoir 21c and gradually increases is a lint removing device. Therefore, it is possible to prevent the lint from being caught between the lint removing device 22 and the mesh portion 21e and locking the lint removing device 22.

(Embodiment 2)
FIG. 11: is principal part sectional drawing of the drying filter apparatus of the clothes dryer in the 2nd Embodiment of this invention. A feature of the present embodiment is that the lint scraping portion 23 has a flat blade shape. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The lint scraping portion 23 of the lint removing device 22 is formed in a flat blade shape extending from the lint removing device rotating shaft 23b toward the first mesh portion (mesh portion) 21e. A distance L between the tip portion of the lint scraping portion 23 having the blade shape and the mesh portion 21e is formed so as to increase from the filter portion 21b toward the lint reservoir portion 21c.

  Since normal pressure loss occurs in the filter unit 21b, not all of the drying air introduced into the filter unit 21b passes through the filter unit 21b and exits from the drying filter device 21. The air is guided to the lint reservoir 21c through the opening 21d. At that time, the drying air that could not pass through the filter portion 21b once collides with the filter portion 21b, and then forms a flow Y along the filter portion 21b.

Therefore, if the opening 21d is provided adjacent to the side of the filter portion 21b, the drying air that could not pass through the filter portion 21b passes along the filter portion 21b, passes through the opening 21d, and the lint reservoir portion. The state led to 21c can be created.

  The lint scraped off by the blade-shaped lint scraping portion 23 is guided to the lint reservoir portion 21c along the flow Y. The lint gradually coalesces in the process of moving on the flow Y and becomes larger. Go. Since the distance L between the first mesh portion 21e and the lint scraping portion 23 is formed so as to increase from the filter portion 21b toward the lint reservoir portion 21c, which is the flow direction Y of the drying air, the filter portion 21b. The lint removal device 22 that gradually increases from the lint storage portion 21c to the mesh portion 21e can be prevented from being caught, and the lint is sandwiched between the lint removal device 22 and the mesh portion 21e to lock the lint removal device 22 Can be prevented.

  As described above, the clothes dryer according to the present invention is useful as a clothes dryer because the captured lint can be accurately removed from the mesh portion and the drying operation can be performed satisfactorily.

4 drums (drying room)
DESCRIPTION OF SYMBOLS 14 Blower 16 Circulation air path 21 Drying filter apparatus 21a Introduction part 21b Filter part 21c Lint storage part 22 Lint removal apparatus 21e 1st mesh part (mesh part)

Claims (4)

A drying room for storing objects such as clothes;
A circulation air path for circulating the drying air discharged from the drying chamber to the drying chamber again;
A blower for blowing air to the circulation air passage;
A drying filter device that is disposed in the circulation air passage and captures lint contained in drying air generated from a drying target;
The dry filter device has a filter portion having a mesh portion for capturing lint, a lint reservoir portion provided on a side of the filter portion, and a lint removing device for scraping lint captured by the mesh portion, The lint scraped off by the lint removing device is configured to move toward the lint reservoir,
A clothes dryer configured such that a gap between the lint removing device and the mesh portion gradually increases from the filter portion to the lint reservoir portion. The filter part is formed in a substantially arc shape,
The lint removing device includes a lint removing device rotating shaft coaxial with the mesh portion, and a lint scraping portion extending from the lint removing device rotating shaft toward the mesh portion,
The clothes dryer according to claim 1, wherein a distance from the rotation axis of the lint removing device to a tip of the lint scraping portion is gradually reduced from the filter portion to the lint reservoir portion. The filter part is formed in a substantially arc shape,
The lint removing device includes a lint removing device rotating shaft coaxial with the mesh portion, and a lint scraping portion extending from the lint removing device rotating shaft toward the mesh portion,
The clothes dryer according to claim 1 or 2, wherein a radius of the mesh portion around the rotation axis of the lint removing device is gradually increased from the filter portion to a lint reservoir portion. The clothes dryer according to any one of claims 1 to 3, wherein the lint scraping part has a spiral shape along the mesh part.