JP4088314B2 - Drum washing machine - Google Patents

Description

  The present invention relates to a drum type washing machine having a rotating drum.

  A drum-type washing machine having a horizontal drum that rotates about a substantially horizontal axis generally performs a washing process including a washing process, a rinsing process, and a dehydrating process that rotates the drum at a low speed. What performs a drying process is commercialized.

  A conventional drum type washing machine is configured as shown in FIGS. 24 is a side sectional view, and FIG. 25 is a front view. In the drum type washing machine, the outer box 1 is arranged on a bottom base 35, and the upper part of the outer box 1 is covered with a top plate 36. Inside the outer box 1, a water tank 4 having an opening 4a on the front surface is provided horizontally. The water tank 4 is suspended by a suspension device 7 and is elastically supported.

  A drum 5 is coaxially disposed in the water tank 4, and a shaft portion 5 e of the drum 5 is rotatably supported by a bearing 31. A pulley 32 is attached to the shaft portion 5 e of the drum 5, and the rotation of the motor 34 is transmitted by the belt 33. Thereby, the drum 5 is rotationally driven.

  The front surface of the outer box 1 can be opened and closed by an open / close door 3 so that the laundry can be taken in and out of the drum 5. When the open / close door 3 is closed, the opening 4a is sealed by a packing 10 made of rubber or the like provided around the opening 4a. A large number of small holes 5 a are formed on the peripheral surface of the drum 5 so that the washing liquid can flow in and out between the water tank 4 and the drum 5.

  A baffle 5b protrudes from the inner surface of the drum 5, and the laundry is hooked and lifted by the rotation of the drum 5, and is washed by dropping it into the washing liquid. Further, a large balance weight 28 is installed on the peripheral surface of the water tank 4 so as to suppress vibration during high-speed rotation of the drum 5.

  A water supply port 41 to which a water supply hose 42 connected to a water pipe is connected is provided at the upper back of the outer box 1. A water supply pipe 12 is connected to the water supply port 41 via a water supply valve 13. When the water supply valve 13 provided in the middle of the water supply pipe 12 is opened, water is supplied into the water tank 4 from a water supply nozzle 15 provided on the front surface of the water tank 4. Further, a drain hole 4 d for draining the washing water in the water tank 4 is provided in the lower part of the water tank 4 and is drained by driving the drain pump 18.

  As shown in FIG. 26, the drain pump 18 is connected to the drain hose 44 disposed outside the outer box 1 through the drain duct 16. Since the drain pump 18 cannot stop water, the drain hose 44 is erected up to a level above the level of the washing liquid supplied to the water tank 4 and is bent into a U shape and fixed to the outer box 1 as shown in FIG. It is held by such a holding member 43.

  This prevents water leakage and allows the water to drain downward. Further, when the drum type washing machine is not used for a long time, the drainage hose 44 can be removed from the holding member 43 to drain the water accumulated in the interior. Here, the drainage hose 44 is for household use. The diameter conforms to the standard of the drain.

  In FIG. 25, a drying duct 27 that connects the upper part and the lower part of the water tank 4 is provided on the side of the water tank 4. A drying unit 24 for sending warm air into the drum 5 is provided in the course of the drying duct 27, and the laundry is dried by the warm air sent into the drum 5.

  Further, as shown in FIG. 28, the side plate 1e of the outer box 1 is provided with a handle portion 48 that is gripped during transportation, and the drum-type washing machine can be lifted and moved by inserting a hand into the handle portion 48. It is like that.

  The water tank 4 is formed of a resin molded product in order to reduce weight and cost. As shown in FIG. 24, a rib 4 b that is integrally formed is projected on the back surface of the water tank 4. When transporting the drum-type washing machine, the water tank 4 is fixed by tightening the bolts 52 to the ribs 4b through insertion holes (not shown) provided in the mounting portion 1c of the outer box 1. Thus, the swingable water tank 4 is prevented from colliding with other parts during transportation and being damaged. In addition, if a drum type washing machine is carried in and installed in a desired place, the bolt 52 will be removed. At this time, the insertion hole through which the bolt 52 passes remains through.

  The drum type washing machine having the above-described configuration puts detergent and laundry in the drum 5, closes the open / close door 3, and executes the “washing process”. In the “washing process”, first, the water supply valve 13 is opened and water is supplied into the water tank 4 from the water supply nozzle 15, and the drum 5 rotates forward and backward by driving the motor 34. The laundry is submerged in the lower part of the aquarium 4, is caught on the baffle 5b, is transported upward, and falls. Cleaning is performed by the impact at this time.

  When a predetermined washing time has elapsed, the “rinsing process” is subsequently performed. In the “rinsing step”, the washing water is drained from the drain hole 4 d by driving the drain pump 18. Next, similarly to the “washing process”, water is supplied from the water supply nozzle 15, and the drum 5 is rotated by driving the motor 34. Thereby, rinsing is performed. In addition, during the rinsing process, a rinsing dehydration operation may be performed in which the drum 5 after draining is rotated at a high speed and the detergent is removed by centrifugal force.

  When the predetermined rinsing time has elapsed, the “dehydration step” is subsequently performed. In the “dehydration process”, the washing water is drained from the drain hole 4 d by driving the drain pump 18. Next, the drum 5 rotates at a high speed, and the washing water contained in the laundry is discharged by centrifugal force.

  When the predetermined dehydration time has elapsed, the “drying process” is executed. In the “drying process”, warm air is sent into the drum 5 by the drying unit 24. The warm air absorbs moisture contained in the laundry and is discharged from below the water tank 4. Then, after dehumidifying by a cooler (not shown) provided in the drying duct 27, warm air is sent out again into the water tank 4 by the drying unit 24. This operation is repeated to dry the laundry.

  When assembling such a drum type washing machine, first, the outer box 1 is mounted on the bottom base 35. Next, a water tank 4 in which a drum 5 is housed from above is placed in the outer box 1 and is suspended by a suspension device 7. Then, components such as the drainage pump 18 and the drying unit 24 are installed below and above the water tank 4 to be connected to the water tank 4.

According to the conventional drum-type washing machine , for example, when cleaning the rear or lower side of the drum-type washing machine, it is necessary to lift and carry the drum-type washing machine. There was a problem that could not be.

The present invention has been made to solve the above-described problems, and an object thereof is to provide a drum-type washing machine that can be easily moved .

The present invention includes a base having a leg portion at a lower end surface, an outer box installed on the base with a structure such that a front side protrudes forward from a front end of the bottom lower end surface, and the outer box a water tub provided within the drum that is disposed rotatably in the water tank, in a drum type washing machine wherein the drum is inclined so far side is lowered, the bottom base having the legs in front than the legs, and the legs of the surface that is disposed above said bottom platform lower surface integrally formed with the bottom base having the upward surface disposed upward than the bottom base bottom surface It is characterized in that a concave portion recessed toward is provided, and a person can put it on the concave portion and pull it without tilting the base. According to this configuration, for example, when the drum type washing machine is pulled out forward, it can be easily pulled out by placing a hand on the recess.

According to the present invention, in the drum type washing machine having the above-described configuration, the outer box is provided with a handle portion at an upper part on the back surface, the water tank has an opening on the front surface side and a drive mechanism on the back surface side .

According to the present invention, in the drum type washing machine configured as described above, the concave portion is provided integrally with the base.

According to the present invention, it is possible to draw a simple drum type washing machine over the hand in the recess to the front because it forms a recess towards front bottom base. As a result, the rear and lower portions of the drum type washing machine can be easily cleaned.

Embodiments of the present invention will be described below with reference to the drawings. Are denoted by the same reference numerals for convenience, the same parts as in FIG. 24 to FIG. 2 8 of the conventional example described. FIG. 1 is an external perspective view showing the drum type washing machine of the embodiment. Moreover, Fig.2 (a), (b) is the front view and side view.

  In the drum type washing machine, the outer box 1 is arranged on the bottom base 35, and the upper surface of the outer box 1 is covered with a top plate 36. The outer box 1 is formed by sheet metal processing of a decorative steel plate. The top plate 36 is made of a compression board or the like and is screwed to the outer box 1. Inside the outer box 1, a water tank 4 that opens toward the front surface is disposed so as to be inclined downward.

  Although details will be described later, a rotating drum (not shown) is coaxially arranged in the water tank 4. The front of the outer box 1 can be opened and closed with an opening / closing door 3. An operation panel 11 having operation keys 37 and a display unit 38 is provided on the upper front of the outer box 1.

  FIG. 3 is a side sectional view of the drum type washing machine. In the outer box 1, a bottomed cylindrical water tank 4 having an opening 4 a on the front surface is horizontally provided. A bottomed cylindrical drum 5 is disposed in the water tank 4. A bearing 6 is integrated into the water tank 4 via a motor case 9a.

  A shaft portion 5e fixed to the drum 5 is supported by a bearing 6 so that the drum 5 is rotatable. A rotor 9b is fixed to the shaft portion 5e, and a stator 9c is fixed in the motor case 9a. Thereby, the drive mechanism 9 directly connected to the drum 5 is configured. The drive mechanism 9 is composed of a direct current brushless motor and is driven by control from the control unit 2.

  A small hole 5 a is provided in the peripheral wall of the drum 5. The small holes 5a allow washing water to flow between the water tank 4 and the drum 5 during washing. A baffle 5b protrudes from the inner wall surface of the drum 5, and washing is performed by lifting the laundry by the rotation of the drum 5 and dropping it into the washing liquid.

  A fluid balancer 5 d is provided on the outer peripheral edge of the opening 5 c on the front surface of the drum 5. A fluid such as salt water is sealed in the fluid balancer 5d, and the fluid moves when the drum 5 rotates to cancel the movement of the center of gravity due to the deviation of the laundry and the washing liquid. The fluid balancer 5 d may be provided on the inner peripheral edge of the drum 5.

  The rotation axis yy of the drum 5 is disposed so as to be inclined so that the depth of the drum 5 is lowered by an angle θ with respect to the horizontal direction. Thereby, when the user stands on the front side of the drum type washing machine and puts in and out the laundry, the line of sight is improved to the back of the drum 5.

  A packing 10 made of an elastic material such as rubber or soft resin is attached between the peripheral edge of the laundry input port 1a and the peripheral edge of the opening 4a so as to form a passage for taking in and out the laundry. The opening / closing door 3 is provided with a projecting window 3a made of a transparent member so that the inside of the drum 5 can be seen. The packing 10 has a structure in which when the door 3 is closed, the inner peripheral edge 10a is in close contact with the peripheral edge of the window portion 3a to close the passage. As a result, waterproofing during the washing operation is performed. Further, the packing 10 is provided with a bellows or the like so as to bend and follow in accordance with the swing of the water tank 4.

  A water supply pipe 12 that communicates with the water pipe is disposed in the upper part of the outer box 1. When a water supply valve 13 provided in the middle of the water supply pipe 12 is opened, water is supplied into the water tank 4 from a water supply nozzle 15 attached to the packing 10 via a detergent case 14.

  The drainage duct 16a led out from the bottom surface of the water tank 4 is connected to a connection case 17 having a lint filter 17a inside, and communicates with the drainage pump 18 through the drainage duct 16b. Accordingly, the washing liquid from the water tank 4 is drained to the outside of the outer box 1. The yarn waste filter 17a is formed, for example, by forming a resin in a lattice shape or by forming fine fibers in a bag shape, and accumulates the yarn waste and the like in the washing liquid. The lint filter 17 a is detachably mounted in the connection case 17 and can be removed from the lower front portion of the outer box 1.

  A water level sensor 23 is provided on the upper part of the connection case 17 from the air trap 22 through the pressure guide pipe 21. The water level sensor 23 moves the magnetic body in the coil in accordance with the pressure change in the air trap 22. The resulting change in coil inductance is detected as a change in oscillation frequency, and the water level in the water tank 4 is detected.

  When a side cross-sectional view different from that of FIG. 3 of the drum type washing machine is shown in FIG. 4, a circulation duct 19 branched from the drainage duct 16 b is provided on the outlet side of the connection case 17. The circulation duct 19 is connected to the packing 10 so as to face the opening 4 a of the water tank 4, and includes a circulation pump 20 in the middle of the path.

  Then, when the drain pump 18 is stopped and the circulation pump 20 is driven, a circulation path that reaches the water tank 4 through the water tank 4, the drain duct 16 a, the connection case 17, the drain duct 16 b, the circulation pump 20 and the circulation duct 19 is formed. Is done. As a result, the washing liquid in the water tank 4 is circulated through the circulation path, and the detergent in the washing liquid is sufficiently dissolved while passing through the circulation path, and the yarn waste and the like are removed by the yarn waste filter 17a. Therefore, it is possible to prevent the lint from reattaching to the laundry.

  FIG. 5 shows a different side cross section. A drying unit 24 for drying the laundry composed of the blower fan 25 and the heater 26 is provided above the water tank 4. The drying unit 24 is arranged in the middle of the path of the drying duct 27 that connects the outlet 4b facing the opening 4a of the water tank 4 and the circulation port 4c provided in the lower part. A cooler 29 is disposed in the middle of the path of the drying duct 27.

  FIG. 6 is a perspective view of the drum-type washing machine as viewed from the back, and the wash water in the water tank 4 drained from the drain pump 18 (see FIG. 3) is connected hose 64 disposed on the back of the outer box 1. Is released through. Since the drain pump 18 cannot stop water, the connection hose 64 is erected at a predetermined height to prevent the washing liquid in the water tub 4 from being discharged when the drain pump 18 is stopped.

  FIG. 7 shows a detailed view of the portion of the connecting hose 64. A joint 67 communicating with the drainage pump 18 is attached to the outer box 1, and the connecting hose 64 is connected to the joint 67 and is erected upward. Yes. Further, a connecting joint 65 as shown in FIG. 8 is attached to the back plate 1d.

  The connecting hose 64 is sandwiched and held by a holding portion 65c in which a part of the connection joint 65 is cut out. The connection hose 64 is bent in a U shape above the connection joint 65 and is fitted and connected to the first connection portion 65 a of the connection joint 65. A drainage hose 44 for guiding drainage to an indoor or outdoor drainage port is fitted and attached to the second connection portion 65 b of the connection joint 65.

  The drainage hose 44 has a diameter that conforms to the standard of the household drainage port so that the drainage hose 44 can be fitted to the household drainage port. The connecting hose 64 has a smaller diameter than the drain hose 44. In this way, by connecting the connecting hose 64 and the drainage hose 44 by the connecting joint 65, hoses having different diameters can be connected.

  And since the diameter of the connecting hose 64 is small, the amount of washing water remaining in the connecting hose 64 when the drainage pump 18 is stopped is small, and even if the washing water flows backward, the water level is lower than the water tank 4. it can. That is, since the drainage hose 44 has a large diameter, even if the connection hose 64 is filled with drainage when the drainage pump 18 is stopped, drainage and air are mixed in the drainage hose 44.

  For this reason, air enters the connection hose 64 from the second connection portion 65b, and the drainage between the joint 67 and the connection joint 65 flows backward, but the drainage in the drainage hose 44 does not flow backward. As a result, it is possible to prevent the dehydrated laundry from getting wet by the backflow of the washing liquid. Further, since the connection joint 65 is fixed to the back plate 1d of the outer box 1, the risk of external force being applied is reduced, and the risk of water leakage due to disconnection or disconnection can be reduced.

  The holding portion 65c of the connection joint 65 may be formed by a holding member 66 made of another member as shown in FIG. Regardless of which method is used to hold the connecting hose 64, the risk of applying external force can be reduced by restricting the swinging of the connecting hose 64. Further, when the upper portion of the connection joint 65 is short when bent into the U shape, the connecting hose 64 is bent and the washing water cannot pass.

  However, when the length of the U-shaped portion is short due to variations in the length of the connecting hose 64, the U-shaped portion at the top of the connection joint 65 is extended between the joint 67 and the holding portion 65c or the holding member 66. Can be held by the holding portion 65c or the holding member 66. Thereby, the yield of the connection hose 64 can be improved. Further, by providing the holding portion 65c integrally with the connection joint 65, the number of parts can be reduced and the assembly can be facilitated.

  In FIG. 6, a recess 62 is formed on the upper right side of the back plate 1d. A water supply port 41 for connecting a water supply hose (not shown) connected to the water supply for water supply is provided in the recess 62. A detailed view of the concave portion 62 is shown in FIG. 10, and the concave portion 62 is formed of a box-shaped member formed of a resin molded product or the like, and a flange portion 62b is formed on the periphery of the opening 62a. Then, the box-shaped member is fitted into the hole 1g formed in the back plate 1d, and the flange portion 62b is in contact with the back plate 1d to fix the box-shaped member.

  The water supply valve 13 is attached to the inside of the recess 62, and the water supply port 41 protrudes outward from the attachment surface 62 c of the water supply valve 13. Thereby, the water supply port 41 does not protrude from the back plate 1d, and when the water supply hose is connected, it is not necessary to provide a gap more than necessary behind the drum type washing machine, and the installation space can be reduced. In addition, a space where a hand can be put on the periphery of the water supply port 41 is provided.

  A grip portion 61 is formed on the upper left side of the back plate 1d so that it can be used for movement. By placing one hand on the recess 62 and the other hand on the handle portion 61, the drum-type washing machine can be carried in an easy posture, and there is no need to provide a separate handle portion for placing one hand. The score can be reduced.

  In addition, a stepped portion 1h that is recessed from the thickness of the flange 62b is formed around the hole 1g of the back plate 1d by drawing or the like. Thereby, the useless clearance with the wall surface of the back of a drum type washing machine can be reduced, without the collar part 62b of the recessed part 62 projecting rather than the surface of the backplate 1d.

  In FIG. 6, a handle portion 48 that can be handed when the drum type washing machine is moved is provided on the upper portion of the side plate 1 e of the outer box 1. As shown in FIG. 11, the handle portion 48 is formed of a box-shaped member formed of a resin molded product or the like, similar to the concave portion 62, and a flange portion 48 b is formed on the periphery of the opening portion 48 a. Then, the box-shaped member is fitted into the hole 1j formed in the side plate 1e, and the box portion 48b is in contact with the side plate 1e to fix the box-shaped member.

  On the peripheral edge of the hole 1j of the side plate 1e, a step 1m that is recessed more than the thickness of the flange 48b is formed by drawing or the like. Thereby, it is possible to prevent the collar portion 48b from projecting to the side of the drum-type washing machine and preventing the collar portion 48b from interfering with a wall or the like and being unable to be carried indoors. For this reason, the width | variety of the outer case 1 can be made wide by the thickness of the collar part 48b, and a drum-type washing machine with a big capacity | capacitance can be obtained.

  Further, as shown in part A, the stepped portion 1m may be formed by a plurality of steps. If it does in this way, when the thickness of the collar part 48b is large, the crack and peeling of the coating of the side surface board 1e which generate | occur | produce by forming the level | step-difference part 1m in one step | paragraph can be prevented. Furthermore, the peripheral part of the handle part 48 where the weight of the washing machine is increased when the washing machine is lifted can be increased.

  12 and 13 are a side view and a bottom view, respectively, showing the rear part of the drum type washing machine. At the rear end of the base 35, notches 35a are formed at two places on the left and right, and wheels 71 are arranged on the notches 35a. A bearing portion 35b that supports the axle 71a of the wheel 71 is formed on a side portion of the notch portion 35a. The wheel 71 is rotatably supported by fitting the axle 71a into the bearing portion 35b. The wheel 71 is attached so as to have a gap with the floor surface, and does not function in a state where the drum type washing machine is installed.

  14 and 15 are a perspective view and a cross-sectional view showing the main part of the front portion of the base 35, respectively. In the front portion of the base 35, concave portions 35c that are recessed upward from the lower surface are provided at two locations on the left and right by integral molding. And as shown in FIG. 16, the wheel 71 is earth | grounded by putting a hand on the recessed part 35c and lifting.

  Therefore, one person lifts the recess 35c and the other person supports the handle 61 and the recess 62 (see FIG. 6), so that the drum type washing machine can be easily moved by the rotation of the wheel 71. It is also possible to move by pulling alone from the front. It is also possible to pull out the drum type washing machine to the front by placing the hand on the recess 35c and pulling it without tilting the bottom base 35.

  FIG. 17 is a side view showing a state where the drum type washing machine is packed. The drum type washing machine is protected by packing materials 53, 54, and 55 and covered with a packing case 51 for transport. The water tank 4 is suspended so as to be swingable by a suspension device 7 made of a tension spring and a damper 8.

  For this reason, when transporting the drum type washing machine, the bolts 52 are attached to the fixtures 49 attached to the water tank 4 through the attachment portion 1c of the outer case 1 at a plurality of positions on the back as shown in FIG. It is concluded. Thereby, the water tank 4 is fixed and it is prevented that it collides with another part and breaks during conveyance.

  As shown in FIG. 18A, the bolt 52 includes a buffer tube 52a made of an elastic body such as rubber, a sleeve 52b made of resin, and a screw 52c inserted through the sleeve 52b. When the screw 52c is tightened, as shown in FIG. 18B, the buffer tube 52a is formed with a convex portion 52d by compression, and the water tank 4 is fixed. Further, the buffer tube 52a is an elastic body, so that the shock is mitigated. When the screw 52c is loosened, it becomes a straight tube as shown in FIG.

  The fixture 49 is formed of a plate-like member such as a metal plate. When a large impact such as dropping is applied to the drum type washing machine during transportation, the impact is transmitted to the water tank 4 via the bolt 52 and the fixture 49. At this time, since the fixture 49 is made of a plate-like member, the fixture 49 is easily deformed. When the fixture 49 is deformed, the impact is alleviated and the water tank 4 can be prevented from being damaged. Moreover, since the impact can be further mitigated by providing the bent portion 49a obtained by bending a part of the fixture 49, the effect of preventing the water tank 4 from being damaged can be further improved.

  When the drum-type washing machine is installed at a desired position such as indoors, the bolt 52 is removed. Since the insertion hole of the bolt 52 is inserted together with the buffer tube 52a and the sleeve 52b, the opening area is large. For this reason, as shown in FIG. 20, a cap 45 is fitted into the insertion hole 1f through which the bolt 52 has been inserted. Thereby, the accident which arises by putting a finger into the penetration hole 1f and contacting a movable part is prevented.

  The cap 45 has a cylindrical portion 45b having substantially the same diameter as the insertion hole 1f, and a claw portion 45a having a diameter larger than that of the insertion hole 1f at the tip of the cylindrical portion 45b. When the cap 45 is pushed into the insertion hole 1f, the claw portion 45a engages with the periphery of the insertion hole 1f so that the cap 45 cannot be easily removed. Thereby, the cap 45 is not removed by the user or removed by an external force, and an accident can be prevented.

  In the drum type washing machine having the above-described configuration, the operation chart shown in FIG. 21 is executed by the control unit 2, and the washing operation is performed. The washing operation will be described below with reference to FIG. When the laundry is loaded from the laundry loading port 1a and the open / close door 3 is closed, the inner peripheral edge 10a of the packing 10 is brought into close contact with the peripheral edge of the window 3a of the open / close door 3 and the water tank 4 is sealed. When the detergent is put in the detergent case 14 and the operation panel 11 is operated, a washing operation including a “washing process”, a “rinsing process”, a “dehydration process”, and a “drying process” is started by a command from the control unit 2. .

  First, in the water supply operation of the “washing process”, the open / close door 3 is locked by a lock mechanism (not shown) and the water supply valve 13 is opened. Based on the opening of the water supply valve 13, the tap water flows into the water tank 4 and the drum 5 together with the detergent from the water supply nozzle 15 via the detergent case 14. When the water level in the water tank 4 reaches a predetermined water level, the water level sensor 23 detects and the water supply valve 13 is closed. Then, the drive mechanism 9 is driven to rotate the drum 5 according to a predetermined washing chart, and the washing operation is performed for a predetermined time.

  The rotation of the drum 5 is set by a rotation chart in which the rotation speed according to the washing, rinsing, dehydrating and drying processes, or the type of laundry, and the reversal time and reversal cycle are changed. It is programmed to be selected automatically.

  When the “washing process” is completed, the process proceeds to a “rinsing process” in which the rinse dehydrating operation and the stirring rinse operation are alternately repeated a plurality of times. In the “rinsing step”, first, the drain pump 18 is operated to perform a drain operation for draining the washing liquid to the outside through the drain ducts 16a and 16b.

  When the draining operation is completed, the drum 5 rotates on the first dehydration chart, and the rinsing dehydration operation is performed. The washing liquid of the laundry is discharged to the inner wall of the water tank 4 through a small hole 5a provided in the peripheral wall of the drum 5 by centrifugal force due to dehydration rotation. The washing liquid flowing down to the lower part of the water tank 4 through the inner wall is drained to the outside through the drain ducts 16a and 16b.

  During the rinsing and dehydrating operation, the water supply valve 13 may be opened to inject tap water into the water tank 4 from the water supply nozzle 15. If it does in this way, tap water can permeate | transmit a laundry with a centrifugal force and can remove the detergent remaining in the laundry efficiently. The first dehydration chart is a chart suitable for dehydration of a washing liquid containing a lot of detergent by stopping the rotation of the drum 5 in the middle or changing the rotation speed.

  When the rinsing dehydration operation is completed, a water supply operation is performed, the drain pump 18 is stopped, and the water supply valve 13 is opened again. When the water level in the water tank 4 reaches a predetermined water level with the opening of the water supply valve 13, the water supply valve 13 is closed, and the drive mechanism 9 is driven to rotate the drum 5 according to the rinsing chart, thereby executing the stirring and rinsing operation.

  During this stirring and rinsing operation, a soft finish agent storage box (not shown) and a rinse water supply path communicating therewith may be separately provided, and water may be supplied together with the soft finish agent from this rinse water supply path. Further, the washing liquid in the water tank 4 may be circulated by driving the circulation pump 20 during the washing operation or the stirring / rinsing operation.

  When the above “rinse dehydrating operation” and “stirring rinsing operation” are repeated several times to complete the “rinsing step”, the program is switched to the “dehydrating step”. In the “dehydration step”, first, the water supply valve 13 is closed and the drainage pump 18 is operated to drain the washing liquid to the outside.

  Then, the final dehydration operation is performed by rotating the drum 5 with the second dehydration chart. In the final dewatering operation, the washing liquid is discharged to the inner wall of the water tank 4 through a small hole 5a provided in the peripheral wall of the drum 5 by centrifugal force generated by dehydration rotation. Thereafter, the washing liquid flows down the inner wall of the water tub 4 and is drained to the outside by the drain ducts 16a and 16b.

  When the “dehydration process” is completed, the drum 5 is rotated on the drying chart and the blower fan 25 and the heater 26 are driven to execute the “drying process”. In the “drying step”, the air that has absorbed the moisture of the laundry in the drum 5 by driving the blower fan 25 causes the small holes 5a of the drum 5, the circulation port 4c of the water tank 4, the drying duct 27, the blower fan 25, and the heater. 26 circulates into the drum 5 from the outlet 4b.

  The air containing moisture is cooled by being cooled by a cooler 29 provided in the drying duct 27 while passing through the drying duct 27. As a result, the air in the drying duct 27 is dehumidified by moisture condensation, and the air becomes low humidity and reaches the heater 26.

  The air heated by the heater 26 becomes warm air and is blown into the water tank 4 from the blowout opening 4b, and again comes into contact with the laundry to absorb moisture. The air is again sucked into the drying duct 27 from the circulation port 4c and similarly cooled by the cooler 29 and dehumidified. By repeating this operation, the laundry is dried.

  Then, the dryness in the drum 5 is detected by a dry sensor (not shown), and when the predetermined value is reached, the “drying process” is terminated. The moisture condensed by dehumidification in this “drying step” descends in the drying duct 27 and is drained to the outside from the circulation port 4c through the drainage ducts 16a and 16b.

  As described above, washing, rinsing, dehydration, and drying steps are successively performed to wash and dry the laundry. Moreover, it is also possible to execute each of the steps of washing, rinsing, dehydration, and drying independently by setting from the operation panel 11.

Moreover, as shown in FIG. 22, the drum-type washing machine of this embodiment has the outer box 1 attached on the bottom base 35 and the top plate 36 attached thereon. The bottom 35 is provided with an opening 35a. As shown in FIG. 23, the water tank 4 can be supported by disposing a support tool 81 from the lower surface through the opening 35a. Since the lower surface of the outer box 1 is opened, the water tank 4 is arranged on the bottom base 35 by the support 81 and then the water tank 4 is covered with the outer box 1 for assembly.

  Thereby, after attaching separately parts, such as the water supply pipe 12, the detergent case 14, and the drying unit 24 (refer FIG. 4), to the outer case 1, the outer case 1 is installed on the base 35, and the water tank 4 and the parts Can be connected. Therefore, after the water tank 4 is put into the outer box 1 from the upper side of the outer box 1 and the water tank 4 is installed, the conventional difficult work of attaching the parts on the upper side of the water tank 4 is avoided, and the work space for mounting the parts is avoided. As a result, assembly man-hours can be reduced.

It is a perspective view which shows the drum type washing machine of embodiment of this invention. It is the front view and side view which show the drum type washing machine of embodiment of this invention. It is side surface sectional drawing which shows the drum type washing machine of embodiment of this invention. It is side surface sectional drawing of the other cut surface of the drum type washing machine of embodiment of this invention. It is side surface sectional drawing of the other cut surface of the drum type washing machine of embodiment of this invention. It is a perspective view which shows the back surface of the drum type washing machine of embodiment of this invention. It is a figure which shows the attachment state of the connection pipe of the drum type washing machine of embodiment of this invention. It is a perspective view which shows the connection coupling of the drum type washing machine of embodiment of this invention. It is a perspective view which shows the holding member of the drum type washing machine of embodiment of this invention. It is sectional drawing which shows the water supply port part of the drum type washing machine of embodiment of this invention. It is sectional drawing which shows the handle part of the drum type washing machine of embodiment of this invention. It is a side view which shows the back lower part of the drum type washing machine of embodiment of this invention. It is a bottom view which shows the back lower part of the drum type washing machine of embodiment of this invention. It is a perspective view which shows the front part of the base of the drum type washing machine of embodiment of this invention. It is sectional drawing which shows the front part of the base of the drum type washing machine of embodiment of this invention. It is a side view which shows the state which lifted the drum type washing machine of embodiment of this invention. It is side surface sectional drawing which shows the packing state of the drum type washing machine of embodiment of this invention. It is side surface sectional drawing which shows the fixed state of the water tank with the volt | bolt of the drum type washing machine of embodiment of this invention. It is a rear view which shows the state which fixed the water tank of the drum type washing machine of embodiment of this invention. It is sectional drawing which shows the cap of the drum type washing machine of embodiment of this invention. It is a chart figure showing washing operation of a drum type washing machine of an embodiment of the present invention. It is a disassembled perspective view which shows the exterior part of the drum type washing machine of embodiment of this invention. It is a figure which shows the assembly state of the drum type washing machine of embodiment of this invention. It is a side view which shows the conventional drum type washing machine. It is a front view which shows the conventional drum type washing machine. It is a principal part perspective view which shows the back surface of the conventional drum type washing machine. It is a perspective view which shows the holding member of the conventional drum type washing machine. It is sectional drawing which shows the handle part of the conventional drum type washing machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer box 1d Back plate 1e Side plate 1h, 1m Step part 2 Control part 3 Opening / closing door 4 Water tank 5 Drum 9 Drive mechanism 10 Packing 11 Control panel 12 Water supply pipe 13 Water supply valve 16, 16a, 16b Drain duct 17 Connection case 18 Drainage Pump 20 Circulating pump 23 Water level sensor 24 Drying unit 25 Blower fan 26 Heater 27 Drying duct 28 Weight 29 Cooler 35 Base 36 Top plate 41 Water supply port 44 Drainage hose 45 Cap 48, 61 Handle part 49 Fixing tool 51 Packing case 52 Bolt 53, 54, 55 Packing material 62 Recessed portion 65 Connection joint 65c Holding portion 66 Holding member 71 Wheel

Claims (3)

A base having legs on the lower end surface ;
An outer box installed on the bottom base having a structure such that the front side protrudes forward from the front end of the bottom bottom end surface;
A water tank provided in the outer box;
In a drum-type washing machine provided with a drum rotatably arranged in the water tank,
The drum is inclined so that the back side is lowered,
In front than the bottom base of the legs with the legs, and the legs of the surface that is disposed above said bottom platform lower surface integrally formed with said bottom base having, than the bottom base bottom surface A drum-type washing machine characterized in that a concave portion that is recessed upward is provided on a surface disposed above, and a person can hang on and pull the concave portion without tilting the base. .   The drum-type washing machine according to claim 1, wherein the outer box is provided with a handle at an upper part on the back side, and the water tank has an opening on the front side and a drive mechanism on the back side.   The drum type washing machine according to claim 1 or 2, wherein the concave portion is provided integrally with the base.

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