TWI429804B - Dehydration device - Google Patents

Description

Dehydration device Field of invention

The present invention relates to a dewatering apparatus for dehydrating clothes.

Background of the invention

A clothing processing apparatus for performing a predetermined treatment (laundry treatment, dehydration treatment, washing treatment, and drying treatment) on a washing machine, a dryer, or a washing and drying machine typically has a dewatering device for dehydrating the clothes. The dehydration treatment can be carried out by a rotating drum that rotates in the garment processing apparatus.

Japanese Patent Publication No. 2001-504006 discloses a dewatering apparatus which performs dehydration treatment in a rotary drum. Japanese Patent Publication Laid-Open discloses a rotary drum having a plurality of curved faces arranged in a hexagonal lattice shape. The curved surface of the hexagon is raised on the inner side of the rotating drum. A drain hole for discharging water from the clothes to the outside of the rotating drum is formed at an edge portion for dividing each curved surface. The drain hole is formed adjacent to a corner portion of the curved surface.

When the rotating drum rotates, the clothes are pressed or smashed to the inner wall of the rotating drum by centrifugal force. As a result, the water component is pressed out from the clothing, and flows by centrifugation along the curved surface toward the edge. Thereafter, it is discharged from the drain hole formed in the edge portion to the outside of the rotary drum.

According to the dehydration technique of Japanese Patent Laid-Open Publication No. 2001-504006, after the clothes are pressed out, the water component moving along the curved surface is easily attached to the clothes again. Therefore, the dehydration technique of Japanese Patent Laid-Open Publication No. 2001-504006 is not easy to obtain a very high dehydration efficiency.

Patent Publication No. 2008-212635 discloses a rotary drum having an inner wall formed with a dewatering region divided by a ridge of an inner ridge. The dewatering zone is divided into a plurality of square regions by a rotating ridge along the direction of rotation of the rotating drum and a straight ridge that is orthogonal to the rotating ridge. A plane inclined toward the outer side of the rotary drum is formed in the square area. Therefore, a quadrangular pyramidal space is formed in each square area. A drain hole for discharging water from the rotating drum is formed at an apex of the quadrangular pyramidal space.

According to the dehydration technique of Japanese Patent Laid-Open Publication No. 2008-212635, after the water component pressed out from the clothing by the rotating ridge and the orthogonal ridge is excreted by the rotating ridge or the orthogonal ridge, it is driven to be formed in each square area. The space of the pyramid shape. Therefore, the amount of the water component which is returned again by the clothes can be appropriately reduced as compared with the dehydration technique of Japanese Patent Laid-Open Publication No. 2001-504006.

The rotating ridge and the orthogonal ridge of the rotary drum of the Japanese Patent Laid-Open Publication No. 2008-212635 prevent the movement of the water component between adjacent square regions. Therefore, when a plurality of water components are partially removed from the clothing, the space of the quadrangular pyramid shape in the specific square region is filled with the water component. As a result, the water component is again attached to the clothes, and the dehydration efficiency is deteriorated.

Summary of invention

The present invention is directed to providing a dewatering apparatus that achieves high dehydration efficiency.

A dewatering apparatus according to one aspect of the present invention is characterized by comprising a drum having an inner wall surface for defining a accommodating space for accommodating clothes, and a driving portion for rotating the drum; the inner wall surface having a useful shape to be used for the clothing a drain region of the drain portion through which the water is discharged to the outside of the drum, and a ridge portion of the drain portion extending toward the inside of the drum with respect to the drain region; the ridge portion having a first main ridge extending in a first direction along the drain region a portion extending in the first direction, and the second main ridge portion of the drainage region is interposed between the first main ridge portion and at least one of the first main ridge portion and the second main ridge portion a sub-ridge of the base end portion; the sub-ridge portion has a front end connected to the drain portion.

Simple illustration

In the first drawing, a schematic perspective view of a washing and drying machine which is a processing device of the dewatering apparatus according to the first embodiment is incorporated.

Fig. 2 is a schematic cross-sectional view of the washer-dryer shown in Fig. 1.

Fig. 3A is a schematic perspective view of a rotary drum mounted on the washing and drying machine shown in Fig. 2.

Fig. 3B is a schematic perspective view of the rotary drum of the washing and drying machine shown in Fig. 2;

Fig. 4 is a schematic front view of the rotary drum shown in Figs. 3A and 3B.

Fig. 5A is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 5B is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 5C is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 5D is a schematic view showing a dewatering treatment region of the rotary drum shown in Fig. 4.

Fig. 6A is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6B is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6C is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6D is a schematic view showing a dewatering treatment region of the rotary drum shown in Fig. 4.

Fig. 6E is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6F is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 7 is a schematic view schematically showing the arrangement of the drain holes formed in the dehydration treatment regions of Figs. 5A to 6F.

Fig. 8 is a schematic front view showing a rotary drum as a processing apparatus of the dewatering apparatus of the second embodiment.

Fig. 9 is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 8.

Fig. 10 is a schematic front view showing a rotary drum as a processing apparatus of a dewatering apparatus according to a third embodiment.

Fig. 11 is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 10.

The best form for implementing the invention

Hereinafter, various embodiments of the dewatering apparatus will be described with reference to the drawings. In addition, in the following description, the terms "upper", "lower", "left", and "right" are used to clarify the explanation, and the principle of the dehydration device is not limited.

The entire structure of the washing and drying machine of the first embodiment

Fig. 1 is a perspective view of a washing and drying machine incorporating a dewatering apparatus of an embodiment. In the following description, a dewatering apparatus incorporated in a washing and drying machine is exemplified. The dewatering device can also be modified to be incorporated into a washing machine that does not have a drying function or a dryer that does not have a laundry function.

The washing and drying machine 100 has a housing 200 and a door body 300. The housing 200 is formed in a shape of a cuboid. The casing 200 has a front wall 210 that is erected in the vertical direction, a rear wall 220 that is opposite to the front wall 210, a left side wall 230 that is disposed between the front wall 210 and the back wall 220, and that is vertically disposed in the vertical direction. The right side wall 240, the top wall 250 forming the upper surface of the housing 200, and the bottom wall 260 forming the lower surface of the housing 200.

The front wall 210 has a main wall 212 disposed below the lower lower wall 211 and disposed above the lower wall 211, and an upper wall 213 disposed above the main wall 212. The main wall 212 and the upper wall 213 are inclined so as to be inclined upward toward the back wall 220.

The main wall 212 has an annular concave surface 214 that forms a concave region that is substantially complementary to the disk-shaped door body 300. The concave surface 214 surrounds the opening 215 that extends through the center of the main wall 212. The opening 215 communicates with a washing and drying tank (described later) housed inside the casing 200. The user can insert the clothes (clothes or the like) into the casing 200 through the opening 215 and take it out of the casing.

The washer-dryer 100 has a hinge configuration 330 that can rotatably connect the door body 300 to the housing 200. By the hinge structure 330, the door body 300 can be rotated at the closed position of the closed opening portion 215 and the open position of the open opening portion 215. The door body 300 that is rotated to the closed position can be received in a concave area surrounded by the concave surface 214. Further, the door body 300 shown in Fig. 1 is located at an open position.

2 is a schematic cross-sectional view of a washer-dryer 100 having a door 300 in a closed position. The entire structure of the washing and drying machine 100 will be further described with reference to Figs. 1 and 2 .

As shown in Fig. 2, a processing device 400 as a dehydrating device is constructed in the casing 200. In the present embodiment, in addition to the dehydration treatment, the processing apparatus 400 performs the processing required for the washing and drying of the so-called laundry such as the laundry treatment, the scrubbing treatment, and the drying treatment. If the dehydration device is incorporated into a washing machine that does not have a drying function, a treatment device that performs a washing process and a scrubbing process in addition to the dehydration treatment is exemplified as a dewatering device. Further, when the dewatering apparatus is incorporated into a dryer having no washing function, a treatment apparatus which performs a drying treatment in addition to the dehydration treatment is exemplified as a dewatering apparatus.

The processing device 400 has the laundry dryer tank 410 described above. The washing and drying tub 410 has a bottomed cylindrical water tank 420 which is rotatably supported at one end inside the casing 200, and rotatably supports a bottomed cylindrical rotating drum 440 at one end of the water tank 420. The processing device 400 further has a motor 430 that rotates the rotary drum 440. The motor 430 is mounted outside the bottom of the sink 420. The opening of the water tank 420 is formed by a cylindrical end portion 447 that protrudes toward the door body 300 at the closed position. A cylindrical sealing member 115 is fitted to the barrel portion 114. In the present embodiment, the clothes that have been inserted through the opening 215 of the casing 200 can be accommodated in the rotary drum 440. Thus, the rotary drum 440 is exemplified as the drum. Further, a motor 430 for rotating the rotary drum 440 is exemplified as a drive unit.

As shown in FIG. 1, the door portion 300 has a transparent window portion 310 having a bottom end having a trapezoidal conical shape, and a substantially circular plate-shaped support frame 320 supporting the window portion 310. As shown in FIG. 2, when the door body 300 is disposed at the closed position, the window portion 310 is inserted into the opening portion 215 of the casing 200, and is crimped to the sealing member 115 attached to the water tank 420. Therefore, a watertight seal structure is formed between the water tank 420 and the window portion 310. While the door body 300 is in the closed position, the user can visually recognize the clothes in the laundry dryer tank 410 through the transparent window portion 310.

As shown in Fig. 2, a discharge port 116 for discharging the laundry liquid and an inflow port 117 for supplying the laundry liquid are formed in the water tank 420. The laundry liquid for washing can be recycled between the discharge port 116 and the inflow port 117.

The water supply system 120 for supplying water into the water tank 420 is further disposed inside the casing 200, the drainage system 130 for discharging or circulating the laundry liquid in the water tank 420, and the hot air for drying the laundry are sent to the laundry drying clothes. The drying system 140 of the tank 410. Further, when the processing apparatus 400 is incorporated into a washing machine that does not have a drying function, the drying system 140 is not required. Further, when the processing apparatus 400 is incorporated into a dryer having no laundry function, the water supply system 120 or the drainage system 130 may not be used.

The drying system 140 has a circulation line 142 having one end connected to the exhaust port of the water tank 420 and a vent opening for feeding the drying air from the bottom of the water tank 420, and is disposed inside the circulation line 142, and A blower 143 that allows air to flow in the circulation line 142. The drying system 140 may also have a collection line slag, a dedusting filter, a dehumidification unit that dehumidifies the air after dedusting, a dust-removed air, and a heating unit that dries the high-temperature air. Further, in Fig. 1, a cover 251 for attaching and detaching a filter provided in the drying system 140 is attached to the top wall 250 of the casing 200.

As shown in FIG. 1, the washing and drying machine 100 has an operation panel 500 disposed on the upper wall 213. The operation panel 500 allows the user to select the mode of operation of the washing and drying machine 100 and various functions. As shown in FIG. 2, the operation panel 500 has a control circuit unit 510. The control circuit unit 510 displays the information input by the user on the display unit of the operation panel 500. Further, when the operation of the washing and drying machine 100 is started through the operation panel 500, the control circuit unit 510 detects the turbidity of the turbidity of the laundry liquid from the use of the liquid level sensor as the liquid level in the detecting water tank 420. The photosensor 131 of the detector and the electrode sensor 132, which is a conductive sensor for detecting the conductivity of the laundry liquid, receive the detection signal, and according to the detection signals, execute the solenoid valve included in the supply system 120 and The control of the so-called control element of the drain valve 133 included in the drainage system 130. The motor 430, the water supply system 120, the drainage system 130, and the drying system 140 can be automatically controlled by the control circuit unit 510 according to a mode setting or control program to perform a washing step, a washing step, a dehydrating step, and a drying step.

As shown in Fig. 2, the water supply system 120 has a water supply line 121 connected to the water tank 420, and a detergent storage unit 122 that houses the detergent.

The water supply system 120 shown in Fig. 2 can be supplied to the water tank 420 by the water supply line 121 in a timely manner by the switching operation of the electromagnetic valve (refer to the solid arrow in Fig. 2). Further, the washing and drying machine 100 uses the water supply of the water supply system 120, and the detergent in the detergent storage unit 122 disposed in a portion of the water supply line 121 can be put into the water tank 420 in a timely manner.

The drainage system 130 has a first line 134 connected to one end of the discharge port 116 of the water tank 420, a other end portion connected to the first line 134, and a drain control unit 135 that receives the laundry liquid from the water tank 420. The drain control unit 135 has a second line 137 extending between the circulation pump 136 and the water tank 420. The circulation pump 136 is fixed to a platen 138 disposed in the housing 200. One end of the second line 137 is connected to the discharge port of the circulation pump 136, and the other end of the second line 137 is connected to the inlet 117 of the water tank 420. The water tank 420, the first line 134, the drain control unit 135, and the second line 137 form a circulation path of the laundry liquid. The circulation pump 136 causes the laundry liquid to flow and circulate from the discharge port 116 toward the inflow port 117 in the circulation path.

The drain control unit 135 has, in addition to the circulation pump 136, the above-described photosensor 131 using the turbidity sensor as the turbidity for detecting the laundry liquid, and the above-mentioned electrode using the conductive sensor as the conductivity for detecting the laundry liquid. The sensor 132, the drain line 139 for discharging the laundry liquid to the outside, and the middle portion of the drain line 139 are disposed, and the drain valve 133 and the first one are collected from the drain line 139 for switching. The filter portion 144 of the lint (line residue, etc.) contained in the laundry liquid into which the pipe 134 flows.

The drain valve 133 is opened as needed at the end of the washing step or at the end of the washing step. As a result, the washing water that has flowed into the drain control unit 135 from the first line 134 passes through the filter unit 144, is subjected to the removal process of the lint, and is discharged to the outside.

By closing the drain valve 133, the circulation pump 136 is actuated, and the laundry liquid located in the water tank 420 passes through the first line 134 and flows into the drain control unit 135. Thereafter, the laundry liquid is removed by the filter unit 144 disposed in the drain control unit 135. After passing through the filter unit 144, the laundry liquid flows into the circulation pump 136 through the suction line 145 connected to the suction port of the circulation pump 136, and passes through the second line 137 connected to the discharge port of the circulation pump 136 to return to the water tank 420. . During the execution of the washing step or the washing step, the circulation of the washing liquid can be repeated as needed, and the function of the washing step or the washing step is improved.

The rotational speed of the circulation pump 136 is variable. When the number of revolutions of the circulation pump 136 is set to a high speed (for example, 3500 rpm), the laundry liquid flowing into the inlet 117 of the water tank 420 is drawn toward the trajectory in the rotary drum 44 (refer to the arrow Fi in Fig. 2). On the other hand, when the rotation speed of the circulation pump 136 is set to a low speed (for example, 1000 rpm), the laundry liquid flowing into the inlet 117 of the water tank 420 is directed into a space formed between the rotary drum 440 and the water tank 420 (refer to Fig. 2). Arrow Fo).

The circulation pump 136 rotates at a low speed at the start of at least one of the washing step and the washing step. Thereby, it is possible to prevent the undissolved detergent at the end of the laundry or the high-concentration softener immediately after the softener is put into the laundry in the rotary drum 440.

The washing liquid that has flowed into the space between the rotating drum 440 and the water tank 420 is discharged from the discharge port 116 to the drain system 130, and is returned to the inflow port 117 of the water tank 420 (the inner tank circulating step). By repeating the circulation step in the water tank, the detergent can be completely dissolved, and the concentration of the softener can be made uniform. As a result, problems such as dirt of the laundry caused by the undissolved detergent or the high-concentration softener can be avoided.

The circulation step in the water tank should be set after about 10 seconds of the water supply step of the washing step and/or the washing step. Alternatively, it is preferable to start the circulation step in the water tank when the liquid level of about 40 mm from the lower end of the water tank 420 is detected. As a result, the operation of the circulation pump 136 in a state where the laundry liquid is not completely filled in the circulation pump 136 can be appropriately avoided. Thereby, the abnormal sound such as the bubble impact sound of the circulation pump 136, the abnormal temperature of the circulation pump 136 due to the insufficient amount of the laundry liquid, and the operation of the circulation pump 136 at the abnormal temperature can be avoided.

The washer-dryer 100 can also have a pump for supplying bath water to the sink 420. At this time, it is preferable to supply the bath water to the water tank by the bath water supply pump, and then perform the circulation step in the water tank. Thereby, the bath water supply pump and the circulation 1136 are not operated at the same time, and the generation of loud noise which is unpleasant to the user can be prevented.

The washing and drying machine can be set to operate by the operation of the operation panel 500. When the washing and drying machine is scheduled to operate, the circulation step in the water tank should be twice as long as usual. Thereby, the detergent which is solidified by the reservation standby (period from the time of the reservation setting until the actual operation of the washing and drying machine 100) can be sufficiently dissolved. As a result, sufficient detergency can be obtained during the scheduled operation, and the problem of detergent residue can also be avoided.

The washer-dryer 100 can have a temperature sensor as needed. The length of the circulation step in the water tank may also be varied according to the temperature of the washing water measured by the temperature sensor. For example, when the temperature sensor detects a washing water temperature of 5 ° C, the inner tank circulating step of detecting the doubling time length of the washing water temperature of 20 ° C can be performed. Thereby, the detergent can be sufficiently dissolved even at a low water temperature.

Rotating drum

3A and 3B are schematic perspective views of the rotary drum 440. Figure 3A is a perspective view of a rotating drum 440 with a baffle. Figure 3B is a perspective view of the rotating drum 440 with the baffle removed. The rotary drum 440 will be further described using Figs. 2 to 3B.

As shown in FIG. 2, the rotary drum 440 has a disk-shaped bottom plate 441 and a peripheral wall 442 extending from the periphery of the bottom plate 441 toward the door body 300. As shown in FIGS. 3A and 3B, the peripheral wall 442 has an inner wall surface 443 defining a housing space R in which the clothes can be accommodated, and a side wall surface 444 opposite to the inner wall surface 443.

A trapezoidal column-shaped baffle 445 is attached to the inner wall surface 443. In the present embodiment, the three baffles 445 that protrude into the accommodating space R divide the inner wall surface into approximately equal intervals. Two or less baffles 445 or four or more baffles 445 may be attached to the inner wall surface 443 instead. The arrangement, number or shape of the baffle 445 can be appropriately set in accordance with the dehydration efficiency and the number of rotations of the motor 430 that rotates the rotary drum 440.

The processing surface 446 is formed in each of the three divided regions of the inner wall surface 443 divided by the three baffles 445. In the present embodiment, the treatment surface 446 appears on both the inner wall surface 443 and the outer wall surface 444. The treatment surface 446 can also be changed to only appear on the inner wall surface 443.

Fig. 4 is a front view of the rotary drum 440. The processing surface 446 will be described using Figs. 2 to 4 .

The outer wall surface 444 of the rotating drum 440 has a processing surface 446 and a base surface 447 surrounding the processing surface 446. The base surface 447 between the processing faces 446 forms a mounting aperture 448 for mounting the baffle 445.

The outer wall surface 444 and the inner wall surface 443 are rotated in the direction indicated by the arrow A1 in Fig. 4 while the motor 430 is rotating. A plurality of ridges 450 extending in a direction different from the arrow A1 are formed in the processing surface 446.

The ridge 450 has an angle of inclination of about 45° to the arrow A1 and traverses the main ridge 451 of the treatment surface 446. In the present embodiment, the extending direction of the main ridge portion 451 is exemplified as the first direction. Further, the direction indicated by the arrow A1 is exemplified as the second direction.

One of the plurality of plural main ridges 451 which are provided in series in the rotational direction of the peripheral wall 442 of the rotary drum 440 is exemplified as the first main ridge. The main ridge portion 451 formed adjacent to the main ridge portion 451 as the first main ridge portion is exemplified as the second main ridge portion. In the following description, the main ridge portion 451 denoted by the reference numeral "451a" in Fig. 4 will be described as the first main ridge portion. Further, the main ridge portion 451 denoted by reference numeral "451b" in Fig. 4 will be described as the second main ridge portion. However, the assignment of the symbol "451a" and the reference numeral "451b" is for the purpose of explanation only and should not be construed as limiting. The main ridge portion 451 is formed by applying pressure from the outer wall surface 444 to the inner side of the rotary drum 440. The first main ridge portion 451a and the second main ridge portion 451b define a strip-shaped dewatering region.

A drainage area 452 extending in the first direction is formed between the first main ridge portion 451a and the second main ridge portion 451b. A drain portion 453 penetrating the peripheral wall 442 is formed in the drain region 452. The drain portion 453 has a plurality of drain holes 454 that are provided in series in the drain region 452. Unlike the formation of the main ridge 451, in the drain region 452, the pressure from the outer wall surface 444 to the inner side of the rotary drum 440 is hardly applied. Thus, the distance from the rotating shaft of the rotating drum 440 to the drain region 452 is approximately equal to the distance from the rotating shaft of the rotating drum 440 to the base surface 447. On the other hand, the main ridge 451 bulges the drainage area 452 on the inner side of the rotary drum 440. As a result, the water content from the clothes is directed toward the drainage area 452 due to the centrifugal force generated by the rotation of the rotary drum 440. The water component reaching the drainage area 452 passes through the drain portion 453 penetrating the peripheral wall 442 and is discharged to the outside of the rotary drum 440.

The ridge 450 has a plurality of sub-ridges 455 having a base end portion connected to the main ridge portion 451 and a front end portion connected to the drain portion 452. In the present embodiment, the sub-ridge portion 455 projects in a direction orthogonal to the main ridge portion 451. The sub ridge 455 can also be inclined at other angles to the main ridge 451 and protrude toward the drainage area 452. In the present embodiment, the sub-ridge portion 455 has a first sub-ridge portion 455a having a first base end portion connected to the first main-ridge portion 451a, and a second base end portion connected to the second main-ridge portion 451b. The second sub ridge 455b. The sub-ridge portion 455 may also extend from one of the first main ridge portion 451a and the second main ridge portion 451b toward the drainage area 452. The first distal end portion on the side opposite to the first proximal end portion of the first sub-ridge portion 455a is connected to the drainage region 452. The second distal end portion on the side opposite to the second proximal end portion of the second sub-ridge portion 455b is connected to the drainage region 452.

Similarly to the main ridge portion 451, the sub ridge portion 455 is formed by applying pressure from the outer wall surface 444 to the inner side of the rotary drum 440. Thus, the sub ridge 455 is raised on the inner side of the rotary drum 440 with respect to the drainage area 452.

5A to 5D are schematic enlarged views of a dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b. Fig. 5A is a schematic enlarged plan view of the processing surface 446. Fig. 5B is a schematic view showing the undulation of the processing surface 446 along the line A-A shown in Fig. 5A. Fig. 5C is a schematic view showing the undulation of the processing surface 446 along the line B-B shown in Fig. 5A. Fig. 5D is a schematic view showing the undulation of the processing surface 446 along the line C-C shown in Fig. 5A. The processing surface 446 will be further described using Figs. 4 to 5D.

As described above, the first sub-ridge portion 455a formed in the dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b has the first base end portion 456 connected to the first main ridge portion 451a, And connected to the first front end portion 457 of the drainage area 452. As shown in FIGS. 4 to 5D, the plurality of first sub-ridge portions 455a protrude from the first main ridge portion 451a. One of the plurality of first sub-ridges 455a is exemplified as the first water discharge ridge 461. The first sub-ridge portion 455a adjacent to the first water discharge ridge 461 is exemplified as the second water discharge ridge 462. In Fig. 5A, the A-A line passes through the first sub ridge 455a selected as the first drain ridge 461. In addition, the selection of the first drain ridge 461 and the second drain ridge 462 is merely for the sake of clarity of explanation, and should not be construed as limiting.

The second sub-ridge portion 455b formed in the dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b has a second base end portion 458 connected to the second main ridge portion 451b and is connected to the drain The second front end portion 459 of the region 452. As shown in FIGS. 4 to 5D, the plurality of second sub-ridge portions 455b protrude from the second main ridge portion 451b. One of the plurality of second sub-ridges 455b is exemplified as the third water discharge ridge 463. The second sub ridge portion 455b adjacent to the third water discharge ridge 463 is exemplified as the fourth water discharge ridge 464. In Fig. 5A, the B-B line passes between the first sub ridge portion 455a and the fourth water discharge ridge 464 which are selected as the first water discharge ridge 461. In Fig. 5A, the C-C line passes through the second sub ridge 455b which is selected as the fourth drain ridge 464. In addition, the selection of the third drain ridge 463 and the fourth drain ridge 464 is merely for the sake of clarity of explanation and should not be construed as limiting.

In the present embodiment, the straight line L1 connecting the first distal end portion 457 of the first drain ridge 461 and the first distal end portion 457 of the second drain ridge 462 and the second distal end portion 459 connecting the third drain ridge 463 are provided. A region between the straight line L2 of the second tip end portion 459 of the fourth drain ridge 464 is defined as a drain region 452. The first distal end portion 457 and the second distal end portion 459 are formed at the most centrifugal position in the dehydration region defined between the first main ridge portion 451a and the second main ridge portion 451b. On the other hand, the first base end portion 456 on the ridge line of the first main ridge portion 451a and the second base end portion 458 on the second main ridge portion 451b are formed in the first main ridge portion 451a and the second main ridge portion. The position of the dewatering zone defined between 451b that is closest to the center of the rotating drum 440.

As shown in FIGS. 5A to 5D, the first tip end portion 457 of the first drain ridge 461 is formed between the third drain ridge 463 and the fourth drain ridge 464. In addition, since the first drain ridge 461 and the second drain ridge are selected for easy understanding, the first tip end portion 457 of the second drain ridge 462 may be formed on the third drain ridge 463 and 4 464 water drain ridges.

Further, the second tip end portion 459 of the fourth drain ridge 464 is formed between the first drain ridge 461 and the second drain ridge 462. In addition, since the third drain ridge 463 and the fourth drain ridge 464 are selected for easy understanding, the second tip end portion 459 of the third drain ridge 463 may be formed on the first drain ridge 461 and The second drain ridge is 462.

The plurality of first sub-ridges 455a enter between the plurality of second sub-ridges 455b. Therefore, the line connecting the first distal end portion 457 and the second distal end portion 459 in this order is formed in a zigzag shape.

As shown in FIG. 5B, the first proximal end portion 456 is located closer to the inner side of the rotary drum 440 than the first distal end portion 457. Further, as shown in FIG. 5D, the second proximal end portion 458 is located closer to the inner side of the rotating drum 440 than the second distal end portion 459.

The first base end portion 456 of the first drain ridge 461, the first base end portion 456 of the second drain ridge 462, and the fourth drain formed between the first drain ridge 461 and the second drain ridge 462 The approximately right-angled equilateral triangle region formed by the second tip end portion 459 of the water ridge 464 is exemplified as the first main drain surface 471. The first main drain surface 471 is driven by the first main ridge portion 451a from the water component dehydrated by the clothes to the strip-shaped dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b.

The second base end portion 458 of the third drain ridge 463, the second base end portion 458 of the fourth drain ridge 464, and the first drain formed between the third drain ridge 463 and the fourth drain ridge 464 A right-angled equilateral triangle region formed by the first tip end portion 457 of the water ridge 461 is exemplified as the second main drain surface 472. The second main drain surface 472 is guided to the strip-shaped dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b by the second main ridge portion 451b from the water component dehydrated by the clothes.

A right-angled equilateral triangle formed by connecting the first base end portion 456 of the first drain ridge 461, the first tip end portion 457 of the first drain ridge 461, and the second tip end portion 459 of the fourth drain ridge 464 The area is exemplified as the first sub drain surface 473. The first sub-water discharge surface 473 is the fourth water-repellent ridge 464 which is dehydrated from the clothing by the first water-repellent ridge 461 or other water component existing in the dewatering region to the most centrifugal position in the dewatering region. 2 The front end portion 459 is guided.

A right-angled equilateral triangle formed by connecting the first base end portion 456 of the second drain ridge 462, the first tip end portion 457 of the second drain ridge 462, and the second tip end portion 459 of the fourth drain ridge 464 The area is exemplified as the second sub drain surface 474. The second sub-water release surface 474 is the fourth water-repellent ridge 464 which is dehydrated from the clothing by the second water-repellent ridge 462 or the other water component present in the dewatering region to the most centrifugal position in the dewatering region. 2 The front end portion 459 is guided.

A right-angled equilateral triangle formed by connecting the second base end portion 458 of the third drain ridge 463, the second tip end portion 459 of the third drain ridge 463, and the first tip end portion 457 of the first drain ridge 461 The area is exemplified as the third sub drain surface 475. The third water discharge surface 475 will pass through the water component dehydrated from the clothes by the third water ridge 463 or the other water component present in the dewatering zone to the first drain ridge 461 which is present at the most centrifugal position in the dewatering zone. 1 The front end portion 457 is guided.

A right-angled equilateral triangle formed by connecting the second base end portion 458 of the fourth drain ridge 464, the second tip end portion 459 of the fourth drain ridge 464, and the first tip end portion 457 of the first drain ridge 461 The area is exemplified as the fourth sub drain surface 476. The fourth water discharge surface 476 will pass through the water component dehydrated from the clothes by the fourth drain ridge 464 or the other water component present in the dewatering zone to the first drain ridge 461 existing in the most centrifugal position in the dewatering zone. 1 The front end portion 457 is guided.

6A to 6F are schematic enlarged views of a dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b. Fig. 6A is a schematic enlarged plan view of the processing surface 446. Fig. 6B is a schematic view showing the undulation of the processing surface 446 along the line D-D shown between the straight line L1 of one of the intersections of the second main ridge portion 451b and the drainage region 452. Fig. 6C is a schematic view showing the undulation of the processing surface 446 along the straight line L1. Fig. 6D is a schematic view showing the undulation of the processing surface 446 along the line E-E shown between the straight line L1 and the line L2 at the boundary between the display drainage regions 452. Fig. 6E is a schematic view showing the undulation of the processing surface 446 along the straight line L2. Fig. 6F is a schematic view showing the undulation of the processing surface 446 along the line F-F shown between the first main ridge portion 451a and the straight line L2. The treatment surface 446 will be further described using Figs. 4 to 6F.

As shown in FIG. 6F, in the first direction, the first sub-water discharge surface 473 is inclined toward the center direction of the rotary drum 440 with respect to the first main drain surface 471. As shown in FIG. 5C, the first main drain surface 471 is inclined in the center direction of the rotary drum 440 in the direction orthogonal to the first direction. Therefore, the boundary 481 between the first main drain surface 471 and the first sub drain surface 473 is curved in the centrifugal direction. Similarly to the boundary 481, the boundary 482 between the second sub-water discharge surface 474 and the first main drain surface 471 which are present in a line symmetrical with the fourth drain ridge 464 is also curved in the centrifugal direction. The boundary 481, 482 extending between the first proximal end portion 456 and the second distal end portion 459 of the fourth drain ridge 464 is inclined toward the second distal end portion 459 in the centrifugal direction. Therefore, part of the water component on the first main drain surface 471, the first sub-water discharge surface 473, or the second sub-water discharge surface 474 flows toward the junctions 481, 482 as the rotary drum 440 rotates. The water component reaching the junctions 481 and 482 flows toward the second tip end portion 459 of the fourth drain ridge 464.

As shown in FIG. 6B, in the first direction, the fourth sub-water discharge surface 476 is inclined with respect to the second main drain surface 473 in the center direction of the rotary drum 440. As shown in FIG. 5C, in the direction orthogonal to the first direction, the second main drain surface 472 is inclined with respect to the fourth sub-water discharge surface 476 in the center direction of the rotary drum 440. Therefore, the boundary 484 between the second main drain surface 472 and the fourth sub drain surface 476 is curved in the centrifugal direction. Similarly to the boundary 484, the boundary 483 between the third sub-water discharge surface 475 and the second main drain surface 472 which is present in a line symmetrical with the first drain ridge 461 is also curved in the centrifugal direction. The boundary 483, 484 extending between the second proximal end portion 458 and the first distal end portion 457 of the first drain ridge 461 is inclined toward the first distal end portion 457 in the centrifugal direction. Therefore, a part of the water component on the second main drain surface 472, the third sub drain surface 475 or the fourth sub drain surface 476 flows toward the boundary 483, 484 as the rotary drum 440 rotates. The water component reaching the boundary 483, 484 flows toward the first front end portion 457 of the first drain ridge 461.

As shown in Fig. 6D, in the drainage area 452, the gentle undulations are repeated. The boundary 485 between the third drain ridge 463 and the first drain ridge 461 is curved in the centrifugal direction. The boundary 486 between the first drain ridge 461 and the fourth drain ridge 464 is curved in the centrifugal direction. The boundary 487 between the fourth drain ridge 464 and the second drain ridge 462 is curved in the centrifugal direction. The boundary 485 and the junction 486 are connected to the first front end portion 457 of the first drain ridge 461. The junction 486 and the junction 487 are connected to the second front end portion 459 of the fourth drain ridge 464. That is, the interfaces 485, 486, and 487 form a zigzag pattern in the drainage area 452. Further, similarly to the first distal end portion 457 and the second distal end portion 459, the junctions 485, 486, and 487 exist at the most centrifugal position on the treatment surface 446.

Fig. 7 is a schematic enlarged view of a processing surface 446 for showing the arrangement of the drain holes 454. The arrangement of the drain holes 454 will be described using Figs. 4 to 7.

A drain hole 454 is formed in the drain area 452. As shown in Fig. 7, the drain holes 454 are arranged in series along the boundaries 485, 486, and 487.

As described above, the first main drain surface 471, the second main drain surface 472, the first sub drain surface 473, the second sub drain surface 474, the third sub drain surface 475, and the fourth sub drain surface 476 are directed toward the boundary 481, 482. The water component guided by 483 or 484 faces the first distal end portion 457 or the second distal end portion 459.

As described above, the interfaces 485, 486, and 487, the first distal end portion 457, and the second distal end portion 459 are formed at approximately equal centrifugal positions. Therefore, the water components concentrated on the first distal end portion 457 and/or the second distal end portion 459 flow along the junctions 485, 486, and 487 to alleviate the water level difference.

The drain holes 454 formed in the junctions 485, 486, and 487, the first tip end portion 457, and the second tip end portion 459 can appropriately discharge the water component flowing in the water level difference to the outside of the rotary drum 440. Therefore, even if a large amount of water components from the clothes are partially discharged, the accumulation of a part of the water component on the treated surface 446 of the rotary drum 440 can be alleviated, so that high dehydration efficiency can be achieved.

In Fig. 7, a drain hole 454 is formed in the first distal end portion 457 and the second distal end portion 459. Alternatively, it may be changed only to the boundary between the first sub drain surface 473 and the third sub drain surface 475 or the fourth sub drain surface 476, and the second sub drain surface 474 and the third sub drain surface 475 or the fourth sub drain surface 475 or the fourth sub drain surface 475 or the fourth sub drain surface 475 or the fourth sub drain surface 475 A drain hole 454 is formed at the junction of the water surface 476. Further, the drain hole 454 may be formed only in the first distal end portion 457 and the second distal end portion 459.

Second embodiment

Fig. 8 is a schematic front view showing a rotary drum used in the dewatering apparatus of the second embodiment. The same elements as those of the first embodiment are assigned the same reference numerals. The difference from the first embodiment will be described with reference to Fig. 8. In the present embodiment, the processing surface formed on the peripheral wall is mainly different from the first embodiment. In addition, the description of the first embodiment will be appropriately employed for the components not described below.

Similarly to the rotary drum 440 described in connection with the first embodiment, a mounting hole 448 for attaching a shutter to the peripheral wall 442 of the rotary drum 440A of the second embodiment is formed. A processing surface 446A is formed between the pair of regions of the base surface 447 on which the mounting hole 448 of the mountable baffle is formed.

The processing surface 446A is provided in series with a plurality of main ridges 451 extending in a first direction (a direction inclined by about 30 degrees in a direction indicated by an arrow A1) different from a rotation direction of the peripheral wall 442 indicated by an arrow A1 (No. 1 main ridge portion 451a and second main ridge portion 451b).

Fig. 9 is a schematic enlarged view of a dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b. The treatment surface 446A will be further described using Figs. 8 and 9.

In the present embodiment, the first main drain surface 471A and the second main drain surface 472A are equilateral triangle regions having an obtuse angle of about 120°. The first sub-water discharge surface 473A and the second sub-water discharge surface 474A adjacent to the first main drain surface 471A are approximately equilateral triangle regions. The third sub-water discharge surface 475A and the fourth sub-water discharge surface 476A adjacent to the second main drain surface 472A are approximately equilateral triangle regions.

Similarly to the first embodiment, a region between the straight line L1 connecting the first distal end portions 457 and the straight line L2 connecting the second distal end portions 459 is used as the drainage region 452. In the drainage area 452, the junctions 485, 486, and 487 are arranged in a zigzag shape. A drain hole 454 is provided in series along the zigzag pattern. In the drainage area 452, the zigzag pattern formed at the boundary between the sub-ridges 455 is curved more smoothly than the zigzag pattern described in connection with the first embodiment. Thus, the flow of water components along the zigzag pattern is smoother.

Third embodiment

Fig. 10 is a schematic front view showing a rotary drum used in the dewatering apparatus of the third embodiment. The same elements as those of the first embodiment are assigned the same reference numerals. The difference from the first embodiment will be described with reference to Fig. 10. In the present embodiment, the processing surface formed on the peripheral wall is mainly different from the first embodiment. In addition, the description of the first embodiment will be appropriately employed for the components not described below.

Similarly to the rotary drum 440 described in connection with the first embodiment, a mounting hole 448 for attaching a shutter is formed in the peripheral wall 442 of the rotary drum 440B according to the third embodiment. A processing surface 446B is formed between the pair of regions of the base surface 447 on which the mounting hole 448 of the mountable baffle is formed.

The processing surface 446B is provided in series with a plurality of main ridges 451 extending in a first direction (a direction inclined by about 45 degrees in a direction indicated by an arrow A1) different from a rotation direction of the peripheral wall 442 indicated by the arrow A1 (No. 1 main ridge portion 451a and second main ridge portion 451b).

Fig. 11 is a schematic enlarged view of a dewatering region defined between the first main ridge portion 451a and the second main ridge portion 451b. The treatment surface 446B will be further described using Figs. 10 and 11.

In the present embodiment, the first main drain surface 471 and the second main drain surface 472 are approximately right-angled equilateral triangle regions as in the first embodiment. The first sub-water discharge surface 473B and the second sub-water discharge surface 474B adjacent to the first main drain surface 471 are approximately equilateral triangle regions having an apex angle of about 45° at the first base end portion 46. The third sub-water discharge surface 475B and the fourth sub-water discharge surface 476B adjacent to the second main drain surface 472 are about two equilateral triangle regions having an apex angle of about 45° at the second base end portion 458.

Similarly to the first embodiment, a region between the straight line L1 connecting the first distal end portions 457 and the straight line L2 connecting the second distal end portions 459 is used as the drainage region 452. In the drainage area 452, the junctions 485, 486, and 487 are arranged in a zigzag shape. A drain hole 454 is provided in series along the zigzag pattern. In the drainage area 452, the zigzag pattern formed at the boundary between the sub-ridges 455 is curved more smoothly than the zigzag pattern described in relation to the first embodiment or the second embodiment. Thus, the flow of water components along the zigzag pattern is smoother.

In the above embodiment, the dewatering region is formed using a triangular planar region. The dewatering zone can also be formed using a curved curved surface. Furthermore, instead of combining with a triangular plane, a dehydrated region may be formed in a polygonal plane of a quadrangle or a pentagon instead of a triangular plane.

The above embodiment mainly includes a dehydrating device having the following structure. A dewatering apparatus having the following structure can achieve high dehydration efficiency.

The dewatering apparatus according to one aspect of the embodiment includes a drum having an inner wall surface for defining a accommodating space for accommodating clothes, and a driving portion for rotating the drum, wherein the inner wall surface is formed to be useful for a drain region of the drain portion through which the water of the garment is discharged to the outside of the drum, and a ridge portion bulging toward the inside of the drum at the drain region; the ridge portion having a first main ridge extending in a first direction along the drain region And extending in the first direction, and sandwiching the second main ridge portion of the drainage region together with the first main ridge portion, and having at least one of the first main ridge portion and the second main ridge portion a sub-ridge of the base end portion; the sub-ridge portion has a front end connected to the drain portion.

According to the above configuration, when the drum is rotated by the driving portion, the clothes in the accommodating space contact the inner wall surface due to the centrifugal force. As a result, the water component can be extruded from the clothing. The water component is discharged to the ridge which is raised toward the inner side of the drum by the drainage area in which the drain portion is formed, and is discharged from the drain portion in the drainage area to the outside of the drum. The discharge region is formed between the first main ridge portion and the second main ridge portion extending in the first direction. At least one of the first main ridge and the second main ridge is connected to a base end portion of the sub ridge. Since the front end portion of the sub-ridge portion is connected to the drain portion, the flow of the water component between the first main ridge portion and the second main ridge portion is allowed. Therefore, even when a large amount of water is partially removed from the clothes, the accumulation of the water component on the inner wall surface can be appropriately suppressed.

In the above configuration, the sub-ridge portion preferably has a first sub-ridge portion and a second sub-ridge portion, and the first sub-ridge portion has a first base end portion connected to the first main ridge portion and is formed in the drain The first front end portion of the region has a second base end portion connected to the second main ridge portion and a second front end portion formed in the drain portion.

According to the above configuration, the sub ridge portion has the first sub ridge portion and the second sub ridge portion, and the first sub ridge portion has the first base end portion connected to the first main ridge portion and the first base portion formed in the drainage region The front end portion includes a second base end portion connected to the second main ridge portion and a second front end portion formed in the drain portion. . By the first sub-ridge and the second sub-ridge, the water component dehydrated between the first main ridge and the second main ridge can be discharged with good efficiency. That is, high dehydration efficiency can be achieved.

In the above configuration, the first sub-ridge portion preferably has a first water discharge ridge and a second water discharge ridge formed in the dehydration treatment region defined between the first main ridge portion and the second main ridge portion; The second sub-ridge portion has a third water discharge ridge and a fourth water discharge ridge formed in the dewatering treatment region; and the first front end portion of one of the first water discharge ridge and the second water discharge ridge is formed The second tip end portion of one of the third drain ridge and the fourth drain ridge is formed in the first drain ridge and the second portion between the third drain ridge and the fourth drain ridge Drain the ridge.

According to the above configuration, the first sub-ridge portion has the first water discharge ridge and the second water discharge ridge formed in the dehydration treatment region defined between the first main ridge portion and the second main ridge portion. The second sub ridge has a third drain ridge and a fourth drain ridge formed in the dehydration treatment region. The first tip end portion of one of the first drain ridge and the second drain ridge is formed between the third drain ridge and the fourth drain ridge. Further, the second tip end portion of one of the third drain ridge and the fourth drain ridge is formed between the first drain ridge and the second drain ridge. Therefore, the first front end portion of one of the first water discharge ridge and the second water discharge ridge and the second front end portion of one of the third water discharge ridge and the fourth water discharge ridge allow the first main ridge and the second The flow of water between the main ridges. Therefore, even when a large amount of water is partially removed from the clothes, the accumulation of the water component on the inner wall surface can be appropriately suppressed. Therefore, high dehydration efficiency can be achieved.

In the above configuration, the drain region is preferably formed in a line connecting the first tip end portion of the first drain ridge and the first tip end portion of the second drain ridge, and the line connecting the third drain ridge 2 between the front end portion and the line of the second front end portion of the fourth drain ridge.

According to the above configuration, the drain region in which the drain portion is formed is formed in a line connecting the first tip end portion of the first drain ridge and the first tip end portion of the second drain ridge, and a second tip end portion connecting the third drain ridge and The line between the second front end portions of the fourth drain ridge. Therefore, the water component flowing in the drainage area can be appropriately discharged from the drain portion to the outside of the drum.

In the above configuration, the drain portion preferably has a plurality of drain holes provided in series in the drain region extending in the first direction.

According to the above configuration, the water component from the clothes flows along the drainage region extending in the first direction. Since a plurality of drainage holes are provided in series in the drainage area, the water component flowing in the drainage area can be appropriately discharged from the drainage hole to the outside of the drum.

In the above configuration, the first proximal end portion is preferably located closer to the inner side of the drum than the first distal end portion, and the second proximal end portion is located closer to the inner side of the drum than the second distal end portion, and the inner wall surface has the first inner surface The first base end portion of the drain ridge, the first base end portion of the second drain ridge, and the second tip end portion of the one of the first leeches are the first main drain surface.

According to the above configuration, the first proximal end portion is located closer to the inner side of the drum than the first distal end portion. The second proximal end portion is located closer to the inner side of the drum than the second distal end portion. The inner wall surface has a first main water discharge surface having a first base end portion of the first water discharge ridge, a first base end portion of the second water discharge ridge, and a second front end portion of one of the first water discharge ridges. Therefore, the first main drain surface can appropriately guide the water component discharged through the first main ridge to the drain area.

In the above configuration, the inner wall surface preferably has the second base end portion of the third water discharge ridge, the second base end portion of the fourth water discharge ridge, and the first front end portion of the one of the first water discharge ridges as a vertex The 2nd main drain surface.

According to the above configuration, the inner wall surface has the second main water discharge surface having the second base end portion of the third water discharge ridge, the second base end portion of the fourth water discharge ridge, and the first front end portion of one of the first water discharge ridges as the apex. Therefore, the water component that has been drained by the second main ridge can be appropriately guided to the drainage area by the second main drain surface.

In the above configuration, the inner wall surface preferably has the first base end portion of the first water discharge ridge, the first front end portion of the first water discharge ridge, and the second front end portion of the one of the first water discharge ridges as a vertex The first sub drain surface.

According to the above configuration, the inner wall surface has the first sub-water discharge surface with the first base end portion of the first water discharge ridge, the first front end portion of the first water discharge ridge, and the second front end portion of one of the first water discharge ridges as the apex. Therefore, the water component discharged through the first drain ridge can be appropriately guided to the drainage area by the first sub-water discharge surface.

In the above configuration, the inner wall surface preferably has the first base end portion of the second water discharge ridge, the first front end portion of the second water discharge ridge, and the second front end portion of the one of the second water discharge ridges as a vertex The second side of the drainage surface.

According to the above configuration, the inner wall surface has the second sub-water discharge surface with the first base end portion of the second water discharge ridge, the first front end portion of the second water discharge ridge, and the second front end portion of one of the second water discharge ridges as the apex. Therefore, the water component discharged through the second drain ridge can be appropriately guided to the drainage area by the second sub-water discharge surface.

In the above configuration, the inner wall surface preferably has the second base end portion of the third water discharge ridge, the second front end portion of the third water discharge ridge, and the first front end portion of the one of the third water discharge ridges as a vertex The third discharge surface.

According to the above configuration, the inner wall surface has the third sub-water discharge surface having the second base end portion of the third water discharge ridge, the second front end portion of the third water discharge ridge, and the first front end portion of one of the third water discharge ridges as the apex. Therefore, the third water discharge surface can appropriately guide the water component discharged through the third water discharge ridge to the drainage area.

In the above configuration, the inner wall surface preferably has the second base end portion of the fourth water discharge ridge, the second front end portion of the fourth water discharge ridge, and the first front end portion of the one of the first water discharge ridges as a vertex The fourth discharge surface.

According to the above configuration, the inner wall surface has the fourth sub-water discharge surface having the second base end portion of the fourth water discharge ridge, the second front end portion of the fourth water discharge ridge, and the first front end portion of one of the first water discharge surfaces. Therefore, the water component discharged through the fourth drain ridge can be appropriately guided to the drainage area by the fourth sub-water discharge surface.

In the above configuration, at least a portion of the plurality of drainage holes is preferably formed along a boundary between the first sub-water discharge surface and the third sub-water discharge surface.

According to the above configuration, a part of the water component flowing along the first sub-water discharge surface and a part of the water component flowing along the third sub-water discharge surface are inclined with the first sub-water discharge surface and the third sub-water discharge surface , facing the boundary between the first sub-water discharge surface and the third sub-water discharge surface. Since at least a part of the plurality of drainage holes is formed along the boundary between the first sub-water discharge surface and the third sub-water discharge surface, the water component can be discharged to the outside of the drum in a timely manner.

In the above configuration, at least a portion of the plurality of drainage holes is preferably formed along a boundary between the first sub-water discharge surface and the fourth sub-water discharge surface.

According to the above configuration, a part of the water component flowing along the first sub-water discharge surface and a part of the water component flowing along the fourth sub-water discharge surface are inclined with the first sub-water discharge surface and the fourth sub-water discharge surface , facing the boundary between the first sub drain surface and the fourth sub drain surface. Since at least a part of the plurality of drainage holes is formed along the boundary between the first sub-leakage surface and the fourth sub-leakage surface, the water component can be discharged to the outside of the drum in a timely manner.

In the above configuration, at least a portion of the plurality of drainage holes is preferably formed along a boundary between the second sub-water discharge surface and the third sub-water discharge surface.

According to the above configuration, a part of the water component flowing along the second sub-water discharge surface and a part of the water component flowing along the third sub-water discharge surface are inclined with the second sub-water discharge surface and the third sub-water discharge surface , facing the boundary between the second sub drain surface and the third sub drain surface. Since at least a part of the plurality of drainage holes is formed along the boundary between the second sub-water discharge surface and the third sub-water discharge surface, the water component can be discharged to the outside of the drum in a timely manner.

In the above configuration, at least a portion of the plurality of drainage holes is preferably formed along a boundary between the second sub-water discharge surface and the fourth sub-water discharge surface.

According to the above configuration, a part of the water component flowing along the second sub-water discharge surface and a part of the water component flowing along the fourth sub-water discharge surface are inclined with the second sub-water discharge surface and the fourth sub-water discharge surface , facing the boundary between the second sub drain surface and the fourth sub drain surface. Since at least a part of the plurality of drainage holes is formed along the boundary between the second sub-water discharge surface and the fourth sub-water discharge surface, the water component can be discharged to the outside of the drum in a timely manner.

In the above configuration, the inner wall surface is preferably rotated in a second direction different from the first direction while the driving unit rotates the drum.

According to the above configuration, the inner wall surface can be rotated in the second direction different from the first direction while the driving unit rotates the drum. Therefore, the first main ridge, the second main ridge, and the sub-ridge which contact the clothes in the accommodating space appropriately generate shearing force for the clothes, and contribute to high dehydration efficiency. Further, the first main ridge portion, the second main ridge portion, and the sub-ridge portion can appropriately excrete water components from the clothes and drive the flow to the drainage area. Therefore, high dehydration efficiency can be achieved.

Industrial availability

The principle of this embodiment is suitable for use in a washing machine, a dryer, and a laundry dryer.

100. . . Laundry dryer

114. . . Tube mouth

115. . . Sealing member

116. . . Discharge

117. . . Inflow

120. . . water supply system

121. . . Water supply line

122. . . Detergent accommodating department

130. . . Drainage system

131. . . Light sensing department

132. . . Electrode sensor

133. . . Drain valve

134. . . First line

135. . . Drainage control unit

136. . . Circulating pump

137. . . Second pipeline

138. . . Platen

139. . . Drainage line

140. . . Drying system

141. . . exhaust vent

142. . . Circulation line

143. . . Blower

144. . . Filter section

145. . . Suction line

200. . . case

210. . . Front wall

211. . . Lower wall

212. . . Main wall

213. . . Upper wall

214. . . Concave surface

215. . . Opening

220. . . Back wall

230. . . Left side wall

240. . . Right side wall

250. . . Top wall

251. . . cover

260. . . Bottom wall

300. . . Door body

310. . . Window

320. . . Support frame

330. . . Hinge construction

400. . . Processing device

410. . . Laundry drying trough

420. . . sink

430. . . motor

440,440A, 440B. . . Rotating drum

441. . . Bottom plate

442. . . Zhou wall

443. . . Inner wall

444. . . Outer wall

445. . . Baffle

446,446A,446B. . . Processing surface

447. . . Substrate

448. . . Mounting holes

450. . . Ridge

451. . . Main ridge

451a. . . First main ridge

451b. . . 2nd main ridge

452. . . Drainage area

453. . . Drainage department

454. . . drainage hole

455. . . Secondary ridge

455a. . . First ridge

455b. . . Second ridge

456. . . First base end

457. . . First front end

458. . . Second base end

459. . . Second front end

461. . . First drain ridge

462. . . Second drain ridge

463. . . Third drain ridge

464. . . 4th water ridge

471,471A. . . 1st main drain

472,472A. . . 2nd main drain

473,473A, 473B. . . First discharge surface

474,474A, 474B. . . Second discharge surface

475, 475A, 475B. . . Third discharge surface

476,476A,476B. . . 4th discharge surface

481,482,483,484,485,486,487. . . Junction

500. . . Operation panel

510. . . Control circuit department

Al, Fi, Fo. . . Arrow

A-A, B-B, C-C, D-D, E-E. . . line

L1, L2. . . straight line

R. . . Containing space

In the first drawing, a schematic perspective view of a washing and drying machine which is a processing device of the dewatering apparatus according to the first embodiment is incorporated.

Fig. 2 is a schematic cross-sectional view of the washer-dryer shown in Fig. 1.

Fig. 3A is a schematic perspective view of a rotary drum mounted on the washing and drying machine shown in Fig. 2.

Fig. 3B is a schematic perspective view of the rotary drum of the washing and drying machine shown in Fig. 2;

Fig. 4 is a schematic front view of the rotary drum shown in Figs. 3A and 3B.

Fig. 5A is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 5B is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 5C is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 5D is a schematic view showing a dewatering treatment region of the rotary drum shown in Fig. 4.

Fig. 6A is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6B is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6C is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6D is a schematic view showing a dewatering treatment region of the rotary drum shown in Fig. 4.

Fig. 6E is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 6F is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 4.

Fig. 7 is a schematic view schematically showing the arrangement of the drain holes formed in the dehydration treatment regions of Figs. 5A to 6F.

Fig. 8 is a schematic front view showing a rotary drum as a processing apparatus of the dewatering apparatus of the second embodiment.

Fig. 9 is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 8.

Fig. 10 is a schematic front view showing a rotary drum as a processing apparatus of a dewatering apparatus according to a third embodiment.

Fig. 11 is a schematic view showing a dewatering treatment region formed in the rotary drum shown in Fig. 10.

100. . . Laundry dryer

200. . . case

210. . . Front wall

211. . . Lower wall

212. . . Main wall

213. . . Upper wall

214. . . Concave surface

215. . . Opening

220. . . Back wall

230. . . Left side wall

240. . . Right side wall

250. . . Top wall

251. . . cover

260. . . Bottom wall

300. . . Door body

310. . . Window

320. . . Support frame

330. . . Hinge construction

500. . . Operation panel

Claims (16)

A dewatering device, comprising: a drum having an inner wall surface for defining a receiving space for receiving clothes; and a driving portion for rotating the drum; the inner wall surface having: a drainage area Forming a drain portion for discharging water from the clothes to the outside of the drum; and a ridge portion for bulging the drain portion toward the inside of the drum; the ridge portion having a first direction along the drain region a first main ridge extending, extending in the first direction, and sandwiching the second main ridge portion of the drainage region together with the first main ridge portion, and being connected to the first main ridge portion and the second main ridge a sub-ridge portion of a base end portion of at least one of the portions; the sub-ridge portion having an end portion connected to the drain portion. The dehydration device according to claim 1, wherein the sub-ridge portion has a first sub-ridge portion, and has a first base end portion connected to the first main ridge portion and a first base portion formed in the drainage region The front end portion and the second sub-ridge portion have a second base end portion connected to the second main ridge portion and a second front end portion formed in the drain portion. The dehydration device of claim 2, wherein the first sub-ridge has a first drain ridge formed in a dewatering treatment zone defined between the first main ridge and the second main ridge; a second drain ridge; the second sub-ridge has a third drain ridge and a fourth drain ridge formed in the dehydration treatment zone; and the first drain ridge and the second drain ridge The first tip end portion is formed between the third drain ridge and the fourth drain ridge, and the second tip end portion of one of the third drain ridge and the fourth drain ridge is formed in the first drain The water ridge is between the second drain ridge. The dehydration device according to claim 3, wherein the drain region is formed in a line connecting the first tip end portion of the first drain ridge and the first tip end portion of the second drain ridge, and the third line is connected a line between the second front end portion of the drain ridge and the second front end portion of the fourth drain ridge. A dewatering apparatus according to claim 4, wherein the drain portion has a plurality of drain holes arranged in series in the drain region extending in the first direction. The dehydration device according to claim 5, wherein the first proximal end portion is located closer to an inner side of the drum than the first distal end portion, and the second proximal end portion is located closer to an inner side of the drum than the second distal end portion The wall surface has a first water discharge surface, and the first water discharge surface is the first base end portion of the first water discharge ridge, the first base end portion of the second water discharge ridge, and the second front end of the one of the first water discharge ridges The ministry is the apex. The dehydration device of claim 6, wherein the inner wall surface has a second main drain surface, and the second main drain surface has the second base end portion of the third drain ridge and the fourth drain ridge The second base end portion and the first front end portion of the one of the first base end portions are vertices. The dehydration device according to claim 6 or 7, wherein the inner wall surface has a first sub-water discharge surface, and the first sub-water discharge surface is the first base end portion of the first water discharge ridge, and the first The first front end portion of the drain ridge and the second front end portion of the one of the first ridges are vertices. The dehydration device according to claim 8, wherein the inner wall surface has a second sub-water discharge surface, and the second sub-water discharge surface is the first base end portion of the second water discharge ridge and the second water discharge ridge The first distal end portion and the second distal end portion of the one of the first distal end portions are vertices. The dehydration device according to claim 6 or 7, wherein the inner wall surface has a third sub-water discharge surface, and the third sub-water discharge surface has the second base end portion of the third water discharge ridge and the third discharge surface The second front end portion of the water ridge and the first front end portion of one of the first ends are vertices. The dehydration device according to claim 10, wherein the inner wall surface has a fourth sub-water discharge surface, and the fourth sub-water discharge surface has the second base end portion of the fourth water discharge ridge and the fourth water discharge ridge The second front end portion and the first front end portion of one of the first end portions are vertices. A dewatering apparatus according to claim 10, wherein at least one of the plurality of drainage holes is formed along a boundary between the first sub-water discharge surface and the third sub-water discharge surface. A dewatering apparatus according to claim 11, wherein at least one of the plurality of drainage holes is formed along a boundary between the first sub-water discharge surface and the fourth sub-water discharge surface. A dewatering apparatus according to claim 10, wherein at least one of the plurality of drainage holes is formed along a boundary between the second sub-water discharge surface and the third sub-leakage surface. A dewatering apparatus according to claim 11, wherein at least one of the plurality of drainage holes is formed along a boundary between the second sub-water discharge surface and the fourth sub-water discharge surface. The dehydration device according to any one of claims 1 to 7, wherein the inner wall surface is rotatable in a second direction different from the first direction while the driving unit rotates the drum.