JP2016101373A - Clothing dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clothing dryer capable of preventing the lint from remaining caught between a filter and a screw.SOLUTION: An elastic member 124 is disposed on the outer edge of a fin 122 of a screw 120. The outer edge of the elastic member 124 is in contact with the inner peripheral surface of a lint filter 130. On the opening side of the lint filter 130, a vertical wall part 135 extending in the axial direction of the lint filter 130 is provided. The vertical wall part 135 is arranged at a position in contact with the elastic member 124 disposed on the fin 122 of the screw 120.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a clothes dryer.

  Conventionally, in a clothes dryer, lint (thread waste) is mixed in the air discharged from the drum. Therefore, a filter is provided in the middle of the air flow path, and lint attached to the filter is removed by a lint removing device (see, for example, Patent Document 1).

  In Patent Document 1, lint is attached to the inner peripheral surface of a filter having a substantially semi-cylindrical mesh portion, and the lint includes a screw as a spiral-shaped portion that abuts along the inner peripheral surface of the mesh portion. The structure which scraped off lint with the removal apparatus is disclosed. The lint scraped off by the screw is transferred to the lint accommodation area by moving in the direction along the rotation axis of the lint removing device.

JP 2013-123444 A

  By the way, in the conventional lint removing device, the lint scraped off may be caught on the outer edge portion of the fin of the screw, and the lint may continue to circulate on the same circumference as the screw fin rotates. In this case, the lint remains sandwiched between the filter and the screw, and there is a problem that the lint cannot be transported and collected.

  The present invention has been made in view of such a point, and an object thereof is to suppress the lint remaining between the filter and the screw.

  The present invention relates to a drum for housing clothing, an air passage through which drying air exhausted from an exhaust port of the drum flows, and a lint generated from the clothing disposed in the air passage. The following solutions were taken for a clothes dryer equipped with a lint removing device.

That is, in the first invention, the lint removing apparatus is
A lint filter that is disposed so as to cross the air flow path and is formed in a circular arc shape with an opening on the upstream side of the air flow path, and captures lint in the air to the inner peripheral surface;
A screw having a helical fin that is rotatably arranged inside the lint filter and conveys lint in the axial direction of the lint filter;
At least a part of the outer edge of the fin of the screw is provided with an elastic member that contacts the inner peripheral surface of the lint filter,
A vertical wall portion that extends along the axial direction of the lint filter and contacts the elastic member is provided on the opening side of the lint filter.

  In the first invention, an elastic member is provided on at least a part of the outer edge portion of the fin of the screw. Accordingly, the lint captured on the inner peripheral surface of the lint filter can be reliably scraped off by the elastic member.

  In addition, a vertical wall portion that extends in the axial direction of the lint filter and contacts the elastic member is provided on the opening side of the lint filter. As a result, even when the lint is caught on the outer edge of the fin of the screw, the lint is scraped and dropped by contacting the vertical wall, so the lint remains sandwiched between the lint filter and the screw. Can be suppressed.

  The elastic member may be provided on the entire outer edge portion of the fin of the screw, or a part of the outer edge portion of the screw fin may protrude in the radial direction and provided at the tip portion thereof.

According to a second invention, in the first invention,
The lint filter is provided with a frame portion that extends along the circumferential direction of the lint filter and is inclined in the axial direction of the lint filter.

  In the second invention, since the frame frame portion is inclined in the axial direction of the lint filter, it becomes easy to collect lint that has been scraped and dropped by the vertical wall portion. Specifically, when the frame frame portion extends along the circumferential direction of the lint filter and is orthogonal to the axial direction, the lint scraped off by the vertical wall portion in the upstream section partitioned by the frame frame portion Falls directly below and is located in the same section. For this reason, when the propulsive force of the screw is weak, the screw is caught again on the outer edge portion of the fin of the screw and may circulate on the same circumference.

  On the other hand, in the present invention, since the frame frame portion is inclined in the axial direction, the lint scraped off by the vertical wall portion in the upstream section is directly dropped into the downstream section when falling directly below. It becomes easy to collect lint.

According to a third invention, in the first invention,
The lint filter includes a frame beam portion extending along the axial direction of the lint filter, and extending from the frame beam portion to opposite sides along the circumferential direction of the lint filter and shifted in the axial direction of the lint filter. And a pair of frame frame portions disposed at the above positions.

  In the third invention, since the pair of frame frame portions are disposed at positions shifted from each other in the axial direction of the lint filter, the lint scraped off by the vertical wall portion in the upstream section partitioned by the frame frame portion is When it falls directly below, it moves into the downstream section, making it easier to collect lint.

According to a fourth invention, in any one of the first to third inventions,
An overall circumferential length R [mm] of a cylindrical portion formed with the same radius of curvature as a circular arc-shaped surface in the lint filter, and an opening length R ′ [mm] in the circumferential direction of the opening of the lint filter, When R ′ / R = 1/4, the angle θ [°] of the fin of the screw is
45 <θ <70
It is characterized by being set to satisfy the condition.

  In the fourth invention, the angle of the fin of the screw is set so as to satisfy the above-described conditions, so that the lint being conveyed by the screw is prevented from overflowing from the opening of the lint filter, and the lint is reliably conveyed. Can do.

According to a fifth invention, in any one of the first to fourth inventions,
The rotational speed Rs [rpm] of the screw is
20 <Rs <25
It is characterized by being set to satisfy the condition.

  In the fifth aspect of the invention, by setting the number of rotations of the screw so as to satisfy the above-described conditions, it is possible to reliably convey the lint and increase the amount of lint collected.

A sixth invention is any one of the first to fifth inventions,
A screw motor for rotating the screw;
A control unit for controlling the rotational operation of the screw motor,
The controller performs a reverse rotation operation for conveying the lint from the downstream side in the axial direction of the lint filter toward the upstream side, and then from the upstream side in the axial direction of the lint filter toward the downstream side. The rotation operation of the screw motor is switched so as to perform a forward rotation operation for conveying lint.

  In the sixth aspect of the invention, the rotation operation of the screw motor is switched to perform the forward rotation operation after the reverse rotation operation is performed for a predetermined time. Thereby, for example, even when the lint remains at the upstream end in the axial direction of the lint filter, the lint can be reliably collected by being wound with the screw by performing the reverse rotation operation.

  According to the present invention, the lint captured on the inner peripheral surface of the lint filter can be reliably scraped off by the elastic member. In addition, even if the lint is caught on the outer edge of the fin of the screw, the lint is scraped and dropped by contacting the vertical wall, so that the lint remains between the lint filter and the screw. Can be suppressed.

It is a schematic perspective view which shows the external appearance of the clothes dryer of this Embodiment 1. It is a schematic sectional drawing which shows the structure inside a clothes dryer. It is a schematic perspective view which shows the main apparatuses of a clothes dryer. It is a schematic perspective view which shows a lint removal apparatus. It is a schematic front view of a lint removal apparatus. It is a schematic sectional drawing of a lint removal apparatus. It is a perspective view which shows arrangement | positioning of a screw motor. It is side surface sectional drawing which shows the structure of a vertical wall part. It is the schematic explaining the flow of the air which flows out out of a drum. It is side surface sectional drawing which shows the opening length of a lint filter. It is a plane sectional view showing an angle of a fin of a screw. It is a perspective view which shows the structure of the screw of this Embodiment 2. FIG. It is side surface sectional drawing which shows the structure of a vertical wall part. It is a schematic front view which shows the structure of the lint filter which concerns on this modification 1. It is a schematic front view which shows the structure of the lint filter which concerns on this modification 2. It is a schematic perspective view which shows other embodiment of a clothes dryer. It is a schematic diagram of this other product application example 1. It is a schematic diagram of the other product application example 2.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following description of the preferred embodiment is merely illustrative in nature and is not intended to limit the present invention, its application, or its use. In addition, directions such as up, down, left, and right used in the description follow the arrows shown in FIG.

Embodiment 1
<Overall structure of clothes dryer>
1 and 2 show a clothes dryer 1 according to this embodiment. The clothes dryer 1 has a case 2 having a slightly vertically long, substantially rectangular parallelepiped shape, and an input port 3 through which clothes are put in and out is formed at the upper part of the front surface of the case 2.

  The insertion port 3 has a horseshoe-shaped appearance. Specifically, the upper portion of the edge of the insertion port 3 is formed in a dominant arc shape, and the lower end portion of the edge of the insertion port 3 is formed in a string shape extending in the left-right width direction (substantially horizontal direction). .

  An operation unit 4 such as a touch panel is installed above the insertion port 3. An electronic component 5 such as a substrate is installed inside the housing 2 behind the operation unit 4. A door 6 is attached to the front surface of the housing 2 via a hinge, and the insertion port 3 is opened and closed by the door 6.

  At the front part of the housing 2, an annular recess 2 a that is recessed in an annular shape, an outer flange portion 2 b that protrudes from the inner edge of the annular recess 2 a, and partitions the inlet 3, and from the inner edge of the outer flange portion 2 b to the inside of the housing 2 A cylindrical inner flange portion 11 and the like projecting toward the surface are formed.

  On the inlet 6 side of the door 6, an annular recess 2 a, an outer flange portion 2 b, and a bulging portion 6 a that fits into the inner flange portion 11 are provided. An exhaust port 20 is provided at the lower end of the inner flange portion 11.

(drum)
Inside the housing 2, a drum 30 for storing clothing is installed. The drum 30 is a bottomed cylindrical member having an opening 30a through which clothes are put in and out at the front end. The drum 30 is supported by the housing 2 in such a manner that the opening 30a faces the insertion port 3 and is rotatable about a horizontal axis J extending in the front-rear direction.

  Specifically, a center portion of the rear end portion of the drum 30 is pivotally supported by the rear portion of the housing 2, and a plurality of guide rollers provided with a peripheral portion of the front end portion of the drum 30 at the front portion of the housing 2. 13 is supported.

  At the rear end of the drum 30, a circular vent 30b covered with a mesh filter is formed. A stirring plate 30 c is attached to the inner surface of the drum 30. During the drying operation, the drum 30 is rotationally driven by a drive motor (not shown).

(Component equipment)
As shown in FIG. 3, main devices constituting the clothes dryer 1 such as the air conditioner 40, the air blower 50, and the lint removing device 100 are collectively arranged at the lower part of the clothes dryer 1.

  By arranging these devices in the lower part of the clothes dryer 1, a sufficient installation space can be secured and a large and powerful device can be selected. Since the center of gravity is lowered and the clothes dryer 1 can be stably installed, and since it is located below the drum 30 that generates vibration during the drying operation, the effect of suppressing the vibration can be obtained.

(Air conditioner)
The air conditioner 40 includes an evaporator 41, a condenser 42, a compressor 43, and the like. A duct cover 44 is installed below the drum 30. By attaching the duct cover 44 to the floor surface of the housing 2, an exhaust duct 45 having a large lateral width extending in the front-rear direction is configured.

  The evaporator 41 and the condenser 42 both have a rectangular parallelepiped appearance with a large lateral width, and are accommodated in the duct cover 44 in a state of being arranged in the front-rear direction. Thereby, the air flowing out from the exhaust port 20 during the drying operation is taken in from the front side of the evaporator 41, cooled by the evaporator 41, dehumidified, reheated by the condenser 42, and dried in the exhaust duct. 45.

  The compressor 43 is disposed on the left side of the duct cover 44. In addition to these, the air conditioner 40 is provided with valves, pipes, and the like, which are not shown.

(Blower)
The blower device 50 includes a fan motor 51, a blower fan 52, a fan cover 53, and the like, and is disposed behind the compressor 43 in the rear part of the clothes dryer 1. In front of the compressor 43, an outside air intake fan 55 that takes outside air into the housing 2 is disposed.

  The blower fan 52 is a centrifugal fan, for example, and is covered with a fan cover 53. The fan cover 53 is provided with a suction port and a discharge port, and the suction port is connected to the rear end (downstream side) of the exhaust duct 45.

  An air supply duct 56 is provided along the inner surface of the rear wall of the housing 2. A discharge port of the fan cover 53 is connected to one end of the air supply duct 56. A circular air supply port 57 is formed at the other end of the air supply duct 56. The air supply duct 56 is communicated with the rear portion of the drum 30 through the air supply port 57 and the air vent 30b by the abutment of the air supply port 57 with the air vent 30b of the drum 30.

  The blower fan 52 is rotated by driving the fan motor 51 during the drying operation, and generates a flow of air from the exhaust port 20 toward the air supply port 57. Thereby, a circulation of air passing through the drum 30 is formed (see the arrow in FIG. 2). Due to the cooperation of the blower fan 52 and the air conditioner 40, the moist air flows out from the drum 30 through the opening 30 a and the exhaust port 20, and the dried air flows into the drum 30 through the air supply port 57 and the vent port 30 b.

  A horizontally long air inlet 111a (see FIG. 3) for receiving air opens upward on the lower side of the inner flange portion 11. The air introduction port 111a communicates with the exhaust duct 45 via the air intake port 17 (see FIG. 9).

(exhaust port)
As shown in FIG. 2, the exhaust port 20 includes a plurality of fins and the like, and is provided at the lower end portion of the inner flange portion 11. The upper part 20a of the exhaust port 20 is formed in a horizontally long rectangle. The inner portion 20b of the exhaust port 20 is formed in an arcuate shape and is disposed so as to face the lower end portion of the opening 30a of the drum 30 in the front-rear direction.

  When the door 6 is closed, the upper portion 20 a of the exhaust port 20 faces the bulging portion 6 a of the door 6 vertically with a gap, and the inner portion 20 b of the exhaust port 20 faces the inside of the drum 30. That is, the exhaust port 20 communicates with the front portion of the drum 30 in a state where the door 6 is closed. The air in the drum 30 during the drying operation mainly travels downward through the inner portion 20b of the exhaust port 20.

(Lint remover)
The lint removing device 100 is a device that removes lint in the air flowing out from the exhaust port 20.

  4 to 6 show the configuration of the lint removal apparatus 100 in detail. The lint removal apparatus 100 includes a frame 110, a screw 120, a lint filter 130, and the like.

  The screw 120 is configured to be horizontally long with a rotating shaft 121, a helical fin 122, and the like. An elastic member 124 is provided on the outer edge portion of the fin 122 of the screw 120. Specifically, a groove portion is formed on the outer edge portion of the fin 122 along the spiral shape of the fin 122, and an elastic member 124 is fitted into the groove portion, whereby an elastic member is formed on the outer edge portion of the fin 122. 124 is attached (see also FIG. 11 and the like). The outer diameter of the fin 122 including the elastic member 124 is designed to be the same over the entire region, and the outer edge thereof is in contact with the inner peripheral surface of the lint filter 130. The elastic member 124 may be made of, for example, a rubber material, a resin material, a brush, or the like.

  If the outer edge of the fin 122 is brought into contact with the inner peripheral surface of the lint filter 130 over the entire circumference, the lint filter 130 may be worn out. However, in the present embodiment, the problem is solved by the following. doing.

  First, the member that contacts the lint filter 130 is an elastic member 124. Second, the elastic member 124 is made of a material that can reliably scrape lint and the lint filter 130 is less likely to wear. Third, the height of the elastic member 124 is adjusted so that the elastic member 124 can scrape the lint reliably and the lint filter 130 is not easily worn. Fourth, the roughness of the mesh of the lint filter 130 that satisfies both lint recovery and wear resistance is selected.

  As shown in FIG. 7, the screw 120 is rotationally driven by a screw motor 125. The screw motor 125 is disposed adjacent to the screw 120 such that the motor shaft 126 is parallel to the screw rotation shaft 121.

  A motor-side pulley 127 is attached to the motor shaft 126 of the screw motor 125. A screw-side pulley 128 having a larger outer diameter than the motor-side pulley 127 is attached to the rotating shaft 121 of the screw 120. A pulley belt 129 is wound around the motor-side pulley 127 and the screw-side pulley 128, and the rotational driving force of the screw motor 125 is transmitted to the screw 120 via the pulley belt 129. The screw motor 125 may be directly connected to the rotating shaft 121 of the screw 120.

  The rotation direction of the screw motor 125 is switched by the control unit 140. For example, the control unit 140 is incorporated in the substrate as the electronic component 5 shown in FIG.

  The control unit 140 performs a reverse rotation operation for conveying the lint scraped off by the screw 120 from the downstream side in the axial direction of the lint filter 130 toward the upstream side for a predetermined time, and then performs the axial direction of the lint filter 130 in the axial direction. The rotation operation of the screw motor 125 is switched so as to perform a normal rotation operation for conveying lint from the upstream side toward the downstream side.

  Thereby, for example, even when lint remains at the upstream end in the axial direction of the lint filter 130, the lint can be reliably collected by being wound with the screw 120 by performing the reverse rotation operation.

  As shown in FIGS. 4 to 6, the frame body 110 includes an air introduction unit 111, a lint processing unit 112, a lint deriving unit 113, and the like. The air introduction portion 111 is a horizontally long cylindrical portion that introduces air that passes downward through the exhaust port 20 into the lint processing portion 112. In the upper part of the air introduction part 111, a horizontally long air introduction port 111a for receiving air opens upward.

  The lint processing unit 112 is continuously provided on the lower side of the air introduction unit 111 and is offset so that the screw 120 is shifted to the right with respect to the air introduction unit 111.

  An upstream support portion 115 and a downstream support portion 116 are disposed on the upstream side and the downstream side of the lint processing unit 112, respectively. An upstream end and a downstream end of the rotating shaft 121 of the screw 120 are rotatably supported by an upstream support portion 115 and a downstream support portion 116, respectively. The downstream support portion 116 is disposed in the discharge space 113 a of the lint outlet portion 113 by extending downward from the ceiling portion of the lint outlet portion 113.

  A long lint filter 130 having a U-shaped cross section is detachably attached to the lint processing unit 112 so as to cross the air flow path. The lint filter 130 is integrally composed of a sheet-like mesh filter 131 having a hole diameter that does not allow lint to pass through, and a horizontally long filter frame 132 having a U-shaped cross section that supports the mesh filter 131.

  The filter frame 132 is provided with a frame frame portion 132 a that extends along the circumferential direction of the mesh filter 131 and a frame beam portion 132 b that extends along the axial direction of the mesh filter 131. The frame portion 132a extends perpendicular to the axial direction of the mesh filter 131.

  The lint filter 130 is attached to the lint processing unit 112 such that the inner surface of the circular arc section (capturing surface 130a) faces the upstream side of the air flow path and the capturing surface 130a is along the screw 120. Yes.

  The inner diameter of the capture surface 130 a is set to be substantially the same as the outer diameter of the fin 122 including the elastic member 124, and the elastic member 124 provided at the outer edge of the fin 122 is formed on the inner peripheral surface of the lint filter 130. By the contact, the lint captured on the capturing surface 130a is scraped off.

  As shown in FIG. 8, a plate-like vertical wall portion 135 extending in the axial direction of the lint filter 130 is provided on the opening side of the lint filter 130. The vertical wall portion 135 is disposed at a position in contact with the elastic member 124 provided on the fin 122 of the screw 120. As a result, even if the lint is caught on the outer edge portion of the screw 120, the lint is scraped and dropped by contacting the vertical wall portion 135, so that the lint remains sandwiched between the lint filter 130 and the screw 120. Can be suppressed.

  The lint removal apparatus 100 does not operate during the clothes drying operation, and when the clothes are not being dried (for example, after the operation of the clothes dryer 1 or before the operation is started, the air blower or the air conditioner is activated). It is set to operate for a certain period of time.

  That is, the lint in the air that circulates during the drying operation is captured by the lint filter 130 and accumulated on the capture surface 130a. The lint filter 130 is designed to have a size and shape that do not cause clogging with the amount of lint generated in at least one drying operation.

  As a result, after the drying operation is completed, a lint lump of film shape is formed by the lint remaining on the capturing surface 130a (the lint film LM). The lint film LM is scraped off from the lint filter 130 by the rotation of the screw 120 and pushed out to the left side of the lint filter 130.

  During the drying operation, the lint removing apparatus 100 does not operate and lint can be removed all at once, so that removal in a short time is possible. As a result, complicated control and high-function devices are not required, and member costs and running costs can be suppressed.

  The lint derivation unit 113 is a cylindrical portion that is adjacent to the left side of the lint processing unit 112 and is located below the left end of the air introduction unit 111, and has a discharge space 113a therein. The lint deriving unit 113 receives the lint film LM pushed out from the lint filter 130 and guides the lint film LM to the lint box 61.

(Lint box)
As illustrated in FIG. 9, the lint box 61 is formed in a box shape having an upper opening, and is disposed below the lint deriving portion 113. In the lint box 61, the lint film LM dropped from the lint deriving unit 113 is accumulated.

  By arranging the lint box 61 near the left end portion of the lint filter 130 through which the lint film LM is pushed out, the lint film LM which is difficult to transfer can be easily fed into the lint box 61 without providing a complicated transfer mechanism. it can.

  By arranging the lint box 61 below the lint deriving unit 113 adjacent to the left of the lint filter 130, the lint film LM pushed out from the lint filter 130 can be dropped into the lint box 61 as it is.

  The secondary filter 64 has a horizontally long rectangular sheet-like screen filter that covers the air intake port 17 that opens to the front side of the exhaust duct 45. The screen filter of the secondary filter 64 is formed using a mesh filter having a pore diameter smaller than that of the lint filter 130.

<About the screw fin angle>
As shown in FIG. 10, a part of the circumferential direction is opened above the lint filter 130 in order to take air into the lint filter 130. Here, if the angle of the fin 122 of the screw 120 that conveys the lint is too small, the lint being conveyed may overflow from the opening of the lint filter 130. If the angle of the fin 122 is too large, the lint tends to be clogged on the downstream side of the fin 122.

  Therefore, in this embodiment, by appropriately setting the angle of the fin 122 of the screw 120, the lint being conveyed by the screw 120 is prevented from overflowing from the opening of the lint filter 130 or clogging the lint. .

  Specifically, as shown in FIG. 10, the size of the opening of the lint filter 130 is the total circumferential length R of the cylindrical portion formed with the same curvature radius as the surface of the lint filter 130 having an arcuate cross section [mm]. When the opening length in the circumferential direction of the opening of the lint filter 130 is R ′ [mm], it is set to satisfy the following expression (1).

R ′ / R = 1/4 (1)
When the opening of the lint filter 130 has a size satisfying the above-described expression (1), as shown in FIG. 11, when the angle of the fin 122 of the screw 120 is θ [°], the following ( 2) It is set to satisfy the equation.

45 <θ <70 (2)
By using the screw 120 formed so as to satisfy the above-described expression (2), it is possible to reliably convey the lint while preventing the lint being conveyed by the screw 120 from overflowing from the opening of the lint filter 130. it can.

  Although it is preferable to set the angle θ of the fin 122 to 60 °, it is merely an example, and is not particularly limited to this value as long as the above-described expression (2) is satisfied.

<About screw rotation speed>
In the present embodiment, the lint can be reliably recovered by appropriately setting the rotation speed of the screw 120. Specifically, when the rotational speed of the screw 120 is Rs [rpm], the following equation (3) is satisfied.

20 <Rs <25 (3)
By rotating the screw 120 at the rotation speed Rs satisfying the above-described expression (3), the propulsive force of the screw 120 can be sufficiently secured, the lint can be reliably conveyed, and the amount of lint collected can be increased. .

<< Embodiment 2 >>
FIG. 12 is a perspective view showing the configuration of the screw according to the second embodiment. Hereinafter, the same portions as those in the first embodiment are denoted by the same reference numerals, and only differences will be described.

  As shown in FIG. 12, an elastic member 124 is provided on the fin 122 of the screw 120 so as to protrude in the radial direction. The elastic member 124 is made of, for example, a rubber material, a resin material, a brush, or the like, and the tip thereof is in contact with the inner peripheral surface of the lint filter 130.

  As shown in FIG. 13, the inner diameter of the capturing surface 130a is set larger than the outer diameter of the fin 122, and a predetermined gap is provided between the fin 122 and the capturing surface 130a in the entire axial direction. Is provided.

  Here, lint has a characteristic that a plurality of fibers are not easily entangled with each other. Therefore, if the thin lint captured on the inner peripheral surface of the lint filter 130 is partially peeled off by the elastic member 124 provided on the screw 120 and wound around the fin 122, the portion peeled off by the elastic member 124 By turning up a large amount, the thin lint is twisted and the entire lint can be conveyed.

  Thus, lint can be scraped off by the elastic member 124 provided on the screw 120 using the characteristics of lint while providing a structure in which the lint is not easily caught by providing a gap between the lint filter 130 and the screw 120. it can.

  In addition, although this embodiment demonstrated the structure which provided the one elastic member 124, it is not limited to this form. For example, the elastic member 124 may be provided for each pitch of the fins 122 that are separated in the axial direction. Further, a plurality of elastic members 124 may be arranged at intervals in the circumferential direction of the screw 120. Further, when a plurality of elastic members 124 are provided, the plurality of elastic members 124 may be set at different heights and formed in steps. The elastic member 124 is preferably attached to the fins 122 of the screw 120 so as to be detachable by fitting, press-fitting, or screws, because the replacement work of the elastic member 124 is facilitated.

<< Modification 1 >>
FIG. 14 is a schematic front view illustrating the configuration of the lint filter according to the first modification. As shown in FIG. 14, the lint filter 130 is integrally formed by a sheet-like mesh filter 131 having a hole diameter that does not allow lint to pass through and a horizontally long filter frame 132 having a U-shaped cross section that supports the mesh filter 131. .

  The filter frame 132 is provided with a frame frame portion 132 a that extends along the circumferential direction of the mesh filter 131 and a frame beam portion 132 b that extends along the axial direction of the mesh filter 131.

  The frame part 132 a is inclined with respect to the axial direction of the lint filter 130. Specifically, the upper end portion of the frame frame portion 132a is inclined so as to be located downstream of the lower end portion of the frame frame portion 132a in the lint transport direction.

  In this way, by tilting the frame frame portion 132a in the axial direction of the lint filter 130, the lint film LM that has been scraped and dropped by the vertical wall portion 135 can be easily collected. That is, the lint film LM (indicated by a virtual line in FIG. 14) scraped off by the vertical wall portion 135 in the upstream partition partitioned by the frame frame portion 132a falls into the downstream partition when it falls directly below. It becomes easy to collect the lint film LM.

  When the frame frame portion 132a is inclined in the direction opposite to the example shown in FIG. 14, that is, the upper end portion of the frame frame portion 132a is positioned upstream of the lower end portion of the frame frame portion 132a in the lint conveyance direction. Even if it is made to incline so, the same effect can be acquired.

<< Modification 2 >>
FIG. 15 is a schematic front view illustrating the configuration of the lint filter according to the second modification. As shown in FIG. 15, the lint filter 130 is integrally configured by a sheet-like mesh filter 131 having a hole diameter that does not allow lint to pass through and a horizontally long filter frame 132 having a U-shaped cross section that supports the mesh filter 131. .

  The filter frame 132 is provided with a pair of upper and lower frame frame portions 132 a and 132 a extending along the circumferential direction of the mesh filter 131 and a frame beam portion 132 b extending along the axial direction of the mesh filter 131.

  Here, the pair of upper and lower frame frame portions 132a and 132a extend from the frame beam portion 132b to opposite sides along the circumferential direction of the lint filter 130, and are arranged at positions shifted from each other in the axial direction of the lint filter 130. It is installed.

  As described above, since the pair of upper and lower frame frame portions 132a and 132a are disposed at positions shifted from each other in the axial direction of the lint filter 130, the vertical wall portion is scraped off in the upstream section partitioned by the frame frame portion 132a. The lint film LM thus moved moves into the downstream section when it falls directly below, and it becomes easy to collect the lint film LM.

<< Other Embodiments >>
About the said embodiment, it is good also as following structures.

  In the present embodiment, the air circulation type clothes dryer 1 that circulates and supplies air to the drum 30 has been described, but the exhaust type clothes dryer 1 may be used.

  An example is shown in FIG. Inside the exhaust duct 45, the air conditioner 40 is not installed, and an exhaust port 45 a communicating with the outside of the housing 2 is formed on the downstream side of the exhaust duct 45. A suction port 53a is formed on the side surface of the fan cover 53, and the blower 50 takes outside air into the inside through the suction port 53a.

  The air supply duct 56 is formed separately from the exhaust duct 45. A heating device 200 such as a heater is installed inside the air supply duct 56, and the air taken in from the suction port 53 a is heated by the heating device 200 and then flows into the drum 30 through the air supply port 57.

  The air flowing into the exhaust duct 45 flows out of the clothes dryer 1 through the air exhaust port 45a as it is.

<< Application example 1 of other products >>
The lint removal apparatus 100 according to the present embodiment may be applied to an air cleaner for an automobile engine.

  FIG. 17 is a schematic diagram of Application Example 1 of the other product. As shown in FIG. 17, fine substances such as dust and dust contained in the outside air are removed by the filter element 211 in the air cleaner 210, and after the air amount is adjusted by the intake valve 212, the fine substance is supplied to the engine (not shown). The

  The filter element 211 is in a state in which the filter paper is folded in a bellows shape, and captures fine substances such as dust and dust contained in the air.

  If the filter element 211 continues to be used in a dirty state, the performance of the engine deteriorates and fuel consumption deteriorates. Therefore, regular cleaning and replacement are required. However, since the filter element 211 is installed in the housing of the air cleaner 210, as a matter of fact, most users do not clean each operation, and entrust a maintenance company for periodic cleaning and replacement. We are carrying out.

  Therefore, if the filter element 211 is replaced with the lint removal apparatus 100 of the present embodiment, it is not necessary to take time and effort for cleaning and replacement, so that the optimum engine output can always be maintained and fuel consumption can be prevented from deteriorating. become.

<< Application example 2 of other products >>
The lint removal apparatus 100 according to the present embodiment may be applied to a first filter of an air cleaner.

  FIG. 18 is a schematic diagram of Application Example 2 of the other product. As shown in FIG. 18, in the air cleaner 220, large dust that is visible, such as hair and lint, contained in the outside air sucked by the fan 225 is captured by the first filter 221. Next, the fine dust that has passed through the first filter 221 is filtered by the second filter 222. Finally, the odor-causing substance that has passed through the second filter 222 is adsorbed and removed by the third filter 223. Thereafter, the cleaned air is released.

  Many of the first filters 221 are made of plastic and can be washed and reused many times. However, the user needs to clean them regularly using a vacuum cleaner or the like.

  Therefore, if the first filter 221 is replaced with the lint removal apparatus 100 of the present embodiment, the cleaning effort can be greatly reduced.

  As described above, the present invention is highly useful and industrially applicable because it provides a highly practical effect that can prevent lint from being sandwiched between the filter and the screw. The nature is high.

DESCRIPTION OF SYMBOLS 1 Clothes dryer 20 Exhaust port 30 Drum 100 Lint removal apparatus 120 Screw 122 Fin 124 Elastic member 125 Screw motor 130 Lint filter 132a Frame frame part 132b Frame beam part 135 Vertical wall part 140 Control part

Claims (6)

A drum for housing clothing, an air channel through which drying air exhausted from the exhaust port of the drum flows, and a lint removing device disposed in the air channel to remove lint generated from the clothing A clothes dryer comprising:
The lint remover is
A lint filter that is disposed so as to cross the air flow path and is formed in a circular arc shape with an opening on the upstream side of the air flow path, and captures lint in the air to the inner peripheral surface;
A screw having a helical fin that is rotatably arranged inside the lint filter and conveys lint in the axial direction of the lint filter;
At least a part of the outer edge of the fin of the screw is provided with an elastic member that contacts the inner peripheral surface of the lint filter,
The clothes dryer according to claim 1, wherein a vertical wall portion is provided on an opening side of the lint filter so as to extend along an axial direction of the lint filter and to contact the elastic member. In claim 1,
A clothes dryer, wherein the lint filter is provided with a frame frame portion extending along a circumferential direction of the lint filter and inclined in an axial direction of the lint filter. In claim 1,
The lint filter includes a frame beam portion extending along the axial direction of the lint filter, and extending from the frame beam portion to opposite sides along the circumferential direction of the lint filter and shifted in the axial direction of the lint filter. A clothes dryer comprising a pair of frame frames disposed at the positions. In any one of claims 1 to 3,
An overall circumferential length R [mm] of a cylindrical portion formed with the same radius of curvature as a circular arc-shaped surface in the lint filter, and an opening length R ′ [mm] in the circumferential direction of the opening of the lint filter, When R ′ / R = 1/4, the angle θ [°] of the fin of the screw is
45 <θ <70
A clothes dryer characterized by being set to satisfy the following condition. In any one of claims 1 to 4,
The rotational speed Rs [rpm] of the screw is
20 <Rs <25
A clothes dryer characterized by being set to satisfy the following condition. In any one of claims 1 to 5,
A screw motor for rotating the screw;
A control unit for controlling the rotational operation of the screw motor,
The controller performs a reverse rotation operation for conveying the lint from the downstream side in the axial direction of the lint filter toward the upstream side, and then from the upstream side in the axial direction of the lint filter toward the downstream side. A clothes dryer, wherein the rotation operation of the screw motor is switched so as to perform a forward rotation operation for conveying lint.

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