WO2020093839A1 - 立式洗衣机 - Google Patents

立式洗衣机 Download PDF

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Publication number
WO2020093839A1
WO2020093839A1 PCT/CN2019/110984 CN2019110984W WO2020093839A1 WO 2020093839 A1 WO2020093839 A1 WO 2020093839A1 CN 2019110984 W CN2019110984 W CN 2019110984W WO 2020093839 A1 WO2020093839 A1 WO 2020093839A1
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WO
WIPO (PCT)
Prior art keywords
tub
outer tub
washing
water
cover
Prior art date
Application number
PCT/CN2019/110984
Other languages
English (en)
French (fr)
Inventor
川村保
米泽孝昭
松田喜彦
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社 filed Critical 青岛海尔洗衣机有限公司
Priority to CN201980070657.6A priority Critical patent/CN112912556A/zh
Publication of WO2020093839A1 publication Critical patent/WO2020093839A1/zh

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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/04—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a vertical axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
    • D06F37/18—Doors or covers; Securing means therefor
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor

Definitions

  • the invention relates to a vertical washing machine.
  • the washing machine described in the following Patent Document 1 includes a washing machine outer frame, a water receiving tub arranged in the washing machine outer frame, a washing and dehydrating tub housed in the water receiving tub, and a water receiving tub cover provided on the upper part of the water receiving tub.
  • the washing and dehydrating tub rotates, the washing water rises between the water receiving tub and the washing and dehydrating tub, and is showered in a waterfall shape on the laundry in the washing and dehydrating tub through the water receiving tub cover.
  • Patent Document 1 Japanese Patent No. 3022490
  • the present invention was completed under this background, and its object is to provide a vertical washing machine which can prevent water from rising in the structure of pouring water onto the laundry in the washing tub after the water is raised between the outer tub and the washing tub Water leaked out of the outer barrel.
  • the invention is a vertical washing machine, including: an outer tub, which can store water, has a cylindrical outer tub body, and is formed with an inlet and outlet communicating with the inner tub body from the upper side and connected with the outer tub body Outer bucket cover; cover, rotatably supported by the outer bucket cover, opening / closing the entrance / exit; driving part, generating driving force; washing bucket, arranged in the outer bucket, having water for A through-hole between the washing tub and the outer tub and an opening facing the inlet and outlet from the lower side, containing the laundry thrown in through the inlet and outlet and the opening, and receiving the driving force of the driving unit Rotating; and the control part, the driving part rotates the washing tub, thereby causing the water in the outer tub to rise between the outer tub and the washing tub, pouring from the opening to all
  • the outer tub cover includes an upper member and a lower member, the upper member has an insertion hole into which a rotating shaft of the cover is inserted, and the lower member is provided with a rotation on the
  • the present invention is characterized in that the water discharge hole is arranged around the rotation center portion of the cover in a plan view.
  • the present invention is characterized in that the upper member has a ring-shaped outer edge portion extending downward and surrounding the lower member, and the upper end portion of the outer peripheral surface portion of the lower member is provided with The inclined portion inclined toward the entrance and exit side.
  • the water in the outer tub rises between the outer tub and the washing tub, and pours onto the laundry in the washing tub from the opening of the washing tub.
  • an outer tub cover formed with an access port facing the opening of the washing tub from the upper side is divided into an upper member and a lower member, the upper member rotatably supports a lid that opens / closes the access port, and the lower member is provided with an external
  • the rising water between the tub and the washing tub is guided to the opening guide. Therefore, there is a gap between the upper member and the lower member. Even if the water rising between the outer tub and the washing tub enters between the upper member and the lower member, the water will fall into the outer tub through the water discharge hole provided in the lower member. Thereby, it is possible to prevent water rising up and entering between the upper member and the lower member from leaking out of the outer tub through the insertion hole in the upper member into which the rotation shaft of the lid is inserted.
  • the water discharge hole is arranged around the rotation center portion of the cover in a plan view, that is, in the vicinity of the insertion hole into which the rotation shaft of the cover is inserted in the upper member.
  • the outer cover is assembled by fitting the lower member from the lower side to the inside of the annular outer edge portion of the upper member.
  • the inclined portion provided at the upper end portion of the outer peripheral surface portion of the lower member first comes into contact with the outer edge portion of the upper member, whereby the lower member is guided inside the outer edge portion of the upper member. Therefore, the lower member can be smoothly fitted inside the outer edge portion of the upper member, so that the outer tub cover can be easily assembled.
  • FIG. 1 is a schematic longitudinal right side view of a vertical washing machine according to an embodiment of the present invention.
  • Fig. 2 is a plan view of a cover included in a vertical washing machine.
  • FIG 3 is an exploded perspective view of an outer tub cover included in a vertical washing machine.
  • FIG. 4 is a plan view of an upper member constituting the outer tub cover.
  • 5 is a bottom view of the upper member.
  • Fig. 6 is a plan view of a lower member constituting the tub cover.
  • FIG. 8 is a longitudinal cross-sectional view of an upper member and a lower member in a separated state.
  • FIG. 9 is a longitudinal sectional view of an upper member and a lower member in a combined state.
  • Fig. 10 is a bottom view of the completed outer barrel cover.
  • Fig. 11 is a plan view of the completed outer tub cover.
  • Fig. 1 is a schematic longitudinal right side view of a vertical washing machine 1 according to an embodiment of the present invention.
  • the direction perpendicular to the paper surface of FIG. 1 is called the left-right direction X of the vertical washing machine 1
  • the left-right direction in FIG. 1 is called the front-rear direction Y of the vertical washing machine 1
  • the up-down direction in FIG. 1 is called the vertical type.
  • the left-right direction X and the front-rear direction Y are included in the horizontal direction H.
  • the vertical washing machine 1 includes a cabinet 2, an outer tub 3 disposed in the cabinet 2, a washing tub 4 disposed in the outer tub 3, a pulsator 5 disposed in the washing tub 4, and a The drive unit 6 and the clutch 7 on the lower side Z2 than the outer tub 3.
  • the box 2 is made of metal, for example, and is formed in a box shape.
  • An opening 2B communicating with the inside and outside of the case 2 is formed on the upper surface 2A of the case 2.
  • a door 10 that opens / closes the opening 2B is provided on the upper surface 2A.
  • the door 10 functions as an outer cover in the vertical washing machine 1.
  • a display operation portion 11 composed of a liquid crystal operation panel or the like is provided around the opening 2B in the upper surface 2A.
  • the user of the vertical washing machine 1 can select the operation condition of the washing operation performed in the vertical washing machine 1 by operating the display operation unit 11 or instruct the vertical washing machine 1 to start and stop the washing operation.
  • the display operation unit 11 displays information provided to the user.
  • the outer tub 3 is made of resin, for example, and is formed in a cylindrical shape with a bottom.
  • the outer tub 3 includes a cylindrical outer barrel main body 30 arranged in a vertical direction Z in detail, and an outer barrel cover 31 connected to the upper end of the outer barrel main body 30 from the upper side Z1.
  • the outer tub body 30 has a substantially cylindrical circumferential wall 30A and a bottom wall 30B connected to the lower end of the circumferential wall 30A and blocking the hollow portion of the circumferential wall 30A from the lower side Z2.
  • the upper end of the circumferential wall 30A is the upper end of the outer tub body 30.
  • the hollow portion of the circumferential wall 30A is the internal space of the outer tub body 30.
  • the bottom wall 30B is formed in a substantially horizontal circular plate shape, and a through hole 30C penetrating the bottom wall 30B is formed at the center of the bottom wall 30B.
  • the outer tub cover 31 is formed in a ring shape protruding toward the center of the circumference of the circumferential wall 30A along the upper end of the circumferential wall 30A. Inside the outer tub cover 31, an entrance 31A communicating with the hollow portion of the circumferential wall 30A from the upper side Z1 is formed.
  • the entrance 31A faces the opening 2B of the case 2 from the lower side Z2, and is in a state of communicating with the opening 2B.
  • the outer tub cover 31 is provided with a lid 12 that opens / closes the entrance 31A.
  • the cover 12 functions as an inner cover in the vertical washing machine 1.
  • the lid 12 is supported by the outer tub cover 31 so as to be rotatable about a rotation axis K extending in the left-right direction X.
  • a water supply path 13 connected to a water faucet is connected from the upper side Z1 to the portion of the outer tub cover 31 that is on the rear side Y2 from the entrance 31A.
  • a water supply valve 14 composed of, for example, a solenoid valve is provided in the middle of the water supply path 13.
  • a drain 15 is connected to the bottom wall 30B of the outer tub 3 from the lower side Z2.
  • a drain valve 16 is provided in the middle of the drain 15.
  • the washing tub 4 is made of, for example, a metal, and is formed into a bottomed cylindrical shape that is one circle smaller than the outer tub 3, and the laundry Q can be accommodated inside.
  • the washing tub 4 is coaxially arranged in the outer tub 3.
  • the washing tub 4 accommodated in the outer tub 3 can be rotated around an axis J extending in the vertical direction Z as its central axis.
  • the washing tub 4 has a substantially cylindrical circumferential wall 4A arranged in the vertical direction Z; a bottom wall 4B which blocks the hollow portion of the circumferential wall 4A from the lower side Z2; and an annular ring wall 4C which extends along the circumferential wall 4A The upper edge of the projected toward the axis J side.
  • the radial direction centered on the axis J is referred to as the radial direction R.
  • the side facing the axis J is referred to as the radial inner side R1 and the side away from the axis J is referred to as the radial outer side R2.
  • the inner circumferential surface of the circumferential wall 4A is the inner circumferential surface of the washing tub 4.
  • the circumferential wall 4A is in a state surrounded by the circumferential wall 30A of the outer tub 3.
  • the bottom wall 4B is provided at the lower end of the washing tub 4.
  • the annular wall 4C is in a state opposed to the outer tub cover 31 of the outer tub 3 from the lower side Z2.
  • An opening 4D is formed inside the annular wall 4C.
  • the opening 4D is located at the upper end of the washing tub 4 and exposes the hollow portion of the circumferential wall 4A to the upper side Z1.
  • the opening 4D is in a state of facing and communicating with the entrance 31A of the outer tub 3 from the lower side Z2. The user puts the laundry Q in and out of the washing tub 4 from the upper side Z1 through the opened opening 2B, the entrance 31A, and the opening 4D.
  • a plurality of through holes 4E are formed in the circumferential wall 4A and the bottom wall 4B of the washing tub 4, and water in the outer tub 3 can also travel between the outer tub 3 and the washing tub 4 through the through holes 4E to be stored in the washing tub 4 . Therefore, the water level in the outer tub 3 matches the water level in the washing tub 4. It should be noted that the through-hole 4E may not be provided in the circumferential wall 4A but only in the bottom wall 4B.
  • the bottom wall 4B of the washing tub 4 is formed in a disc shape, and extends substantially parallel to the upper side Z1 of the bottom wall 30B of the outer tub 3 at intervals.
  • a through-hole 4F penetrating the bottom wall 4B is formed at the center of the bottom wall 4B that coincides with the axis J.
  • a tubular support shaft 17 is provided on the bottom wall 4B.
  • the support shaft 17 surrounds the through hole 4F and extends along the axis J to the lower side Z2.
  • the support shaft 17 is inserted into the through hole 30C of the bottom wall 30B of the outer tub 3, and the lower end portion of the support shaft 17 is located on the lower side Z2 of the bottom wall 30B.
  • the pulsator 5 is formed in a disk shape with the axis J as the center, and is disposed on the bottom wall 4B in the washing tub 4.
  • a plurality of blades 5A arranged radially are provided on the upper surface of the opening 4D facing the washing tub 4.
  • the pulsator 5 is provided with a rotating shaft 18 extending from the center of the circle along the axis J to the lower side Z2.
  • the rotating shaft 18 is inserted into the hollow portion of the support shaft 17, and the lower end of the rotating shaft 18 is located on the lower side Z2 of the bottom wall 30B of the outer tub 3.
  • the drive unit 6 is an electric motor such as an inverter motor.
  • the drive unit 6 is arranged on the lower side Z2 of the outer tub 3 in the case 2.
  • the drive unit 6 has an output shaft 19 that rotates about the axis J, and outputs the generated driving force from the output shaft 19.
  • the clutch 7 is interposed between the lower end portions of the support shaft 17 and the rotating shaft 18 and the upper end portion of the output shaft 19 protruding from the driving portion 6 to the upper side Z1.
  • the clutch 7 selectively transmits the driving force output by the drive unit 6 from the output shaft 19 to one or both of the support shaft 17 and the rotating shaft 18.
  • the washing tub 4 receives the driving force from the driving unit 6 and rotates about the axis J.
  • the pulsator 5 receives the driving force from the driving unit 6 and rotates about the axis J.
  • a clutch 7 a well-known transmission mechanism is used.
  • the vertical washing machine 1 includes a control unit 21 composed of a CPU and a memory and built into the cabinet 2.
  • the drive unit 6, the clutch 7, the display operation unit 11, the water supply valve 14, and the drain valve 16 are electrically connected to the control unit 21, respectively.
  • the control unit 21 turns on the driving unit 6 to drive it, and turns off the driving unit 6 to stop it.
  • the control unit 21 controls the clutch 7 to switch the transmission destination of the driving force of the driving unit 6 to one or both of the washing tub 4 and the pulsator 5.
  • the control unit 21 receives the selection.
  • the control unit 21 controls the display content of the display operation unit 11.
  • the control unit 21 controls the opening / closing of the water supply valve 14 and the drain valve 16.
  • the control unit 21 performs the washing operation by controlling the operations of the driving unit 6, the clutch 7, the water supply valve 14, and the drain valve 16.
  • the washing operation includes a washing process for washing the laundry Q, a rinsing process for rinsing the laundry Q after the washing process, and a dehydration process for rotating the washing tub 4 to dehydrate the laundry Q after the rinsing process.
  • the vertical washing machine 1 may be an integrated washing and drying machine that also performs a drying process of drying the laundry Q after the dehydration process.
  • the control unit 21 continuously opens the water supply valve 14 with the drain valve 16 closed, supplies water into the washing tub 4, and stores water into the washing tub 4 to a predetermined water level W. After that, the control unit 21 switches the clutch 7 as necessary to transmit the driving force of the drive unit 6 to the pulsator 5, and then drives the drive unit 6 to rotate the pulsator 5 for a predetermined time.
  • the laundry Q in the washing tub 4 is stirred and washed by the rotating pulsator 5.
  • the dirt of the laundry Q is decomposed by the detergent dissolved in water.
  • the control unit 21 switches the clutch 7 and then turns on the driving unit 6 to transmit the driving force of the driving unit 6 to the washing tub 4.
  • the washing tub 4 storing water rotates at a high speed, for example, at 200 rpm.
  • a vortex is generated in the outer tub 3, and the water surface S in the outer tub 3 is bent into a U shape so that the central portion on the axis J side becomes lower and the outer peripheral portion becomes higher (refer to the thin two-dot chain line in FIG. 1) .
  • the water in the outer tub 3 rises between the circumferential wall 30A of the outer tub 3 and the circumferential wall 4A of the washing tub 4.
  • the rising water passes between the guide portions 31C arranged at the lower surface of the outer tub cover 31 of the outer tub 3, falls while spirally rotating, falls from the opening 4D of the washing tub 4 and pours into the washing tub 4 Washing Q (refer to the thick two-dot chain line arrow in FIG. 1).
  • the guide surface 31B of the outer tub cover 31 of the outer tub 3 guides the water passing through between the guide portions 31C downward toward the opening 4D.
  • the control section 21 rotates the washing tub 4 at a high speed with the drain valve 16 open. By the centrifugal force generated by this high-speed rotation, the laundry in the washing tub 4 is dehydrated. The water oozing from the laundry is drained out of the machine through the drain 15 by dehydration. At the final stage of the intermediate dehydration process, the control section 21 closes the drain valve 16.
  • control section 21 executes a rinsing process.
  • the control unit 21 intermittently opens the water supply valve 14 in a state where the drain valve 16 is opened, thereby spraying water into the washing tub 4.
  • the control unit 21 rotates the washing tub 4 at a low speed of 30 rpm, for example, so that the spray is spread over all corners of the laundry Q.
  • the laundry Q in the washing tub 4 is rinsed in all directions.
  • the control unit 21 rotates the pulsator 5 after water supply to stir and rinse the laundry Q, and then rotates the washing tub 4 to raise the water between the outer tub 3 and the washing tub 4 Afterwards, it is poured onto the laundry Q in the washing tub 4 from the upper side Z1.
  • More than two rinsing processes may be performed.
  • the control section 21 performs an intermediate dehydration process between the rinsing process and the next rinsing process, and after the last rinsing process, performs the same final dehydration process as the intermediate dehydration process.
  • the rotation conditions of the washing tub 4 may be different from the intermediate dehydration process and the final dehydration process.
  • the maximum rotation speed of the washing tub 4 in the final dehydration process is higher than the maximum rotation speed of the washing tub 4 in the intermediate dehydration process. As the final dehydration process ends, the washing operation ends.
  • FIG. 2 is a plan view of the cover 12.
  • the cover 12 is configured to be substantially bilaterally symmetrical.
  • the lid 12 includes a plate-shaped main body portion 12A having a semicircular shape bulging toward the front side Y1 and protruding toward the rear side Y2 from the rear end edge of the main body portion 12A, based on the closed state of the entrance 31A closing the outer tub cover 31
  • a cylindrical rotation center portion 12B extending in the left-right direction X. In the left-right direction X, the rotation center portion 12B is shorter than the rear end edge of the main body portion 12A.
  • the left end of the rotation center portion 12B is located on the right side X2 of the left end of the rear edge, and the right end of the rotation center portion 12B is located on the left side X1 of the right end of the rear edge.
  • the rear end portion of the main body portion 12A may be regarded as a part of the rotation center portion 12B.
  • a rotation shaft 12L protruding to the left X1 is provided on the left end surface of the rotation center portion 12B
  • a rotation shaft 12R protruding to the right X2 is provided on the right end surface of the rotation center portion 12B.
  • the rotation axis K of the cover 12 passes through the respective centers of the rotation shaft 12L and the rotation shaft 12R.
  • FIG. 3 is an exploded perspective view of the outer tub cover 31.
  • the outer tub cover 31 is configured by combining two members, an upper member 32 and a lower member 33.
  • the upper member 32 is formed into a disk shape that is substantially bilaterally symmetrical (see also FIG. 4). In the rear region of the upper member 32, a single or a plurality of upper connection ports 32A connected to the water supply path 13 and the like are formed. In this embodiment, corresponding to the vertical washing machine 1 being an integrated washer-dryer, three upper connection ports 32A are arranged side by side in the left-right direction X.
  • the water supply path 13 is connected to the upper connection port 32A on the left end, and the air supply path (not shown) for supplying warm air to the washing tub 4 during the drying process is connected to the upper connection port 32A on the right end
  • an exhaust air path (not shown) for discharging the humid air in the washing tub 4 during the drying process is connected.
  • On the front side Y1 of the upper connection port 32A of the upper member 32 an upper opening 32B that constitutes the port 31A is formed.
  • the upper opening 32B is formed in a semicircular shape bulging toward the front side Y1 so as to match the main body portion 12A of the cover 12 and penetrate the upper member 32 in the vertical direction Z.
  • the inner peripheral surface portion 32C that defines the upper opening 32B in the upper member 32 is formed in a semicircular shape, has an arc-shaped front inner peripheral surface portion 32D that bulges toward the front side Y1, and extends substantially linearly in the left-right direction X and is The rear inner peripheral face 32E connected to the left and right rear ends of the peripheral face 32D.
  • the front inner peripheral surface portion 32D integrally includes: an upper vertical wall 32DA extending downward from the boundary between the upper surface portion 32F of the upper member 32 and the front inner peripheral surface portion 32D to the lower side Z2, and radially from the lower end of the upper vertical wall 32DA
  • the lateral wall 32DB protruding from the inner side R1 and the lower vertical wall 32DC extending from the end of the radially inner side R1 in the lateral wall 32DB to the lower side Z2.
  • the upper vertical wall 32DA, the lateral wall 32DB, and the lower vertical wall 32DC are formed in a circular arc shape bulging toward the front side Y1 in a plan view.
  • the rear inner peripheral surface portion 32E integrally includes an upper vertical wall 32EA extending downward from the boundary between the upper surface portion 32F of the upper member 32 and the rear inner peripheral surface portion 32E to the lower side Z2, and radially from the lower end of the upper vertical wall 32EA
  • the lateral wall 32EB protruding from the inner side R1 (in this case to the front side Y1) and the lower vertical wall 32EC extending from the front end of the lateral wall 32EB to the lower side Z2.
  • the upper vertical wall 32EA extends linearly in the left-right direction X, and is laid between the left and right rear ends of the upper vertical wall 32DA.
  • the upper vertical wall 32EA and the upper vertical wall 32DA are curved and continuous when viewed from above.
  • the horizontal wall 32EB extends linearly in the left-right direction X, and is installed between the left and right rear ends of the horizontal wall 32DB.
  • the horizontal wall 32EB and the horizontal wall 32DB are curved and continuous when viewed from above.
  • the lower vertical wall 32EC extends linearly in the left-right direction X, and is laid between the left and right rear ends of the lower vertical wall 32DC. When viewed from above, the lower vertical wall 32EC and the lower vertical wall 32DC are curved and continuous.
  • a recess 32G extending linearly in the left-right direction X and recessed toward the lower side Z2 is provided.
  • the recess 32G is recessed toward the rear side Y2 from the upper vertical wall 32EA of the rear inner peripheral surface 32E.
  • the upper vertical wall 32EA is separated into the left portion 32EL on the left side X1 from the recess 32G and the right portion 32ER on the right side X2 from the recess 32G.
  • the upper member 32 has a left longitudinal wall 32GL extending from the right end of the left portion 32EL to the rear side Y2, a right longitudinal wall 32GR extending from the left end of the right portion 32ER to the rear side Y2, and erected on the left longitudinal wall 32GL and the right longitudinal wall 32GR
  • the left vertical wall 32GL, the right vertical wall 32GR, the inner vertical wall 32GA, and the bottom wall 32GB constitute an inner surface portion of the recess 32G.
  • the concave portion 32G is partitioned between the left longitudinal wall 32GL and the right longitudinal wall 32GR facing in the left-right direction X, is partitioned from the rear side Y2 by the inner longitudinal wall 32GA, is partitioned from the lower side Z2 by the bottom wall 32GB, and is separated from the front side Y1 and The upper side Z1 is open.
  • the upper member 32 is formed with a pair of left and right insertion holes 32H.
  • the insertion hole 32H of the left side X1 is a left insertion hole 32HL formed in the left vertical wall 32GL adjacent to the left end of the recess 32G and extending toward the left side X1.
  • the insertion hole 32H of the right side X2 is a right insertion hole 32HR formed in the right vertical wall 32GR adjacent to the right end of the recess 32G and extending toward the right side X2.
  • the upper member 32 has a ring-shaped (specifically, ring-shaped) outer edge portion 32I extending toward the lower side Z2.
  • the outer peripheral surface of the outer edge portion 32I is provided with a flange portion 32J through which a single screw or a plurality of screws (not shown) for fixing the outer tub cover 31 to the outer tub body 30 are inserted and engaged with the outer tub body 30
  • the hook-shaped engaging portion 32K is provided.
  • FIG. 5 is a bottom view of the upper member 32.
  • a plurality of ribs 32M for reinforcing the upper member 32 are provided on the lower surface portion 32L of the upper member 32 surrounded by the outer edge portion 32I.
  • the rib 32M extends radially from the upper opening 32B, or extends in the circumferential direction P around the axis J, or extends so as to surround the upper connection port 32A.
  • On the lower surface portion 32L a plurality of upper protrusions 32N protruding toward the lower side Z2 are arranged in a row so as to surround the upper opening 32B.
  • the upper protrusion 32N is also provided on the periphery of the upper connection port 32A away from the upper opening 32B toward the rear side Y2.
  • a screw hole 32P extending toward the upper side Z1 is formed on the lower surface of each upper protrusion 32N.
  • FIG. 6 is a plan view of the lower member 33.
  • the lower member 33 is formed in a disk shape that is substantially bilaterally symmetrical. In the area behind the lower member 33, the same number of lower connection ports 33A as the upper connection ports 32A of the upper member 32 are formed. On the front side Y1 of the lower connection port 33A in the lower member 33, a lower opening 33B that constitutes the port 31A is formed.
  • the lower opening 33B is formed in a semicircular shape bulging toward the front side Y1 so as to match the upper opening 32B of the upper member 32 and penetrate the lower member 33 in the up-down direction Z.
  • An upper edge portion 33C of the lower member 33 is provided with an inner edge portion 33D that surrounds the entire area of the lower opening 33B and protrudes toward the upper side Z1 (see also FIG. 3).
  • the lower member 33 has an outer edge portion 33E having a ring shape (more specifically, a ring shape).
  • the outer edge portion 33E protrudes from the upper surface portion 33C of the lower member 33 to the upper side Z1, and protrudes from the lower surface portion 33F (see FIG. 7) of the lower member 33 to the lower side Z2. Therefore, the longitudinal end surfaces of the outer edge portion 33E and the peripheral lower member 33 are formed in a substantially T shape (see FIG. 8).
  • the outer peripheral surface portion 33EA of the outer edge portion 33E is the outer peripheral surface portion of the lower member 33.
  • the upper portion of the outer edge portion 33E that protrudes from the upper surface portion 33C to the upper side Z1 is provided with a plurality of notches 33EB, whereby the upper portion of the outer edge portion 33E is arranged at equal intervals along the circumferential direction P of the outer edge portion 33E
  • the plurality of ribs 33EC are divided (see FIG. 3).
  • a plurality of recesses 33ED (see FIG. 3) that are open to both the lower side Z2 and the radial outer side R2 are arranged in the circumferential direction P.
  • the upper surface portion 33C is arranged with the same number of lower protrusions 33G as the upper protrusions 32N of the upper member 32 so as to surround the lower opening 33B.
  • Each lower protrusion 33G is formed with an insertion hole 33H penetrating the lower protrusion 33G in the vertical direction Z.
  • the insertion hole 33H opens from the upper end surface of the lower protrusion 33G to the upper side Z1, and opens from the lower surface portion 33F of the lower member 33 to the lower side Z2.
  • the other insertion hole 33I penetrating the lower member 33 in the up-down direction Z is provided on the periphery of the lower connection port 33A which is away from the lower opening 33B toward the rear side Y2.
  • a plurality of water discharge holes 33J penetrating the lower member 33 in the vertical direction Z are provided at positions adjacent to the lower opening 33B from the rear side Y2.
  • the rear end edge 33BA extending in the left-right direction X is linearly arranged with eight circular water discharge holes 33J having a diameter of 5 mm.
  • These water discharge holes 33J are arranged bilaterally symmetrically.
  • the plurality of water discharge holes 33J may be arranged at equal intervals, or the interval between adjacent water discharge holes 33J may be different depending on places.
  • the distance between the water discharge hole 33J at the left end and the water discharge hole 33J adjacent to the right is narrower than the distance between the water discharge holes 33J adjacent to the center.
  • the distance between the water discharge hole 33J on the right end and the water discharge hole 33J on the left is also narrow.
  • each guide portion 31C is curved from one lower portion of the outer edge portion 33E in one direction in the circumferential direction P (counterclockwise direction in FIG. 7), and extends radially inwardly R1 before reaching the inner edge portion 33D , Which extends substantially linearly in this direction.
  • FIG. 8 is a longitudinal cross-sectional view of one place on the circumference of the upper member 32 and the lower member 33 in a separated state.
  • the operator arranges the lower member 33 on the lower side Z2 of the upper member 32.
  • the lower member 33 is raised to approach the upper member 32. It should be noted that the operator may lower the upper member 32 to bring the lower member 33 closer to the upper member 32.
  • the outer peripheral surface portion 33EA of the outer edge portion 33E of the lower member 33 is fitted inside the outer edge portion 32I of the upper member 32, specifically, the radially inner portion R1, whereby the lower member 33 is surrounded by the outer edge portion 32I.
  • the upper end portion of the outer peripheral surface portion 33EA of the outer edge portion 33E of the lower member 33 is provided with an inclined portion 33EE that slopes toward the opening 33B side toward the upper side Z1.
  • the inclined portion 33EE first contacts the outer edge portion 32I of the upper member 32 in the lower member 33
  • the outer edge portion 33E of the lower member 33 is guided inside the outer edge portion 32I. Therefore, the lower member 33 can be smoothly fitted into the inner side of the outer edge portion 32I of the upper member 32, so that the tub cover 31 can be easily assembled.
  • the inner edge portion 33D of the lower member 33 is fitted outside the lower vertical wall 32DC and the lower vertical wall 32EC of the inner peripheral surface portion 32C of the upper member 32. ⁇ embedded in the radial outer R2. Since the inner edge portion 33D is provided with the same chamfered portion 33DA as the inclined portion 33EE, the inner edge portion 33D smoothly fits outside the lower vertical wall 32DC and the lower vertical wall 32EC.
  • a plurality of convex engaging portions 32IA are provided at the upper end portion of the inner peripheral surface portion of the outer edge portion 33E of the upper member 32, and as the lower member 33 approaches the upper member 32, the outer edge portion 33E of the lower member 33 is overturned The engaging portion 32IA.
  • the lower connection port 33A of the lower member 33 communicates with the upper connection port 32A of the upper member 32 from the lower side Z2 (see FIG. 10).
  • the upper end surface of the lower protrusion 33G of the lower member 33 is in contact with the lower end surface of the corresponding upper protrusion 32N in the upper member 32 from the lower side Z2, and the insertion hole 33H of the lower protrusion 33G is in contact with the upper protrusion
  • the screw holes 32P of the portion 32N communicate with each other (see FIGS. 5 and 6).
  • the insertion hole 33I around the lower connection port 33A in the lower member 33 communicates with the screw hole 32P of the upper boss 32N around the upper connection port 32A in the upper member 32.
  • the completed tub cover 31 is formed into a disk shape that is substantially bilaterally symmetrical.
  • the upper opening 32B of the upper member 32 and the lower opening 33B of the lower member 33 are combined to constitute an entrance 31A.
  • the inner peripheral portion of the lower surface portion 33F of the lower member 33 that surrounds the lower opening 33B serves as the above-mentioned guide surface 31B and is arranged to be inclined obliquely downward toward the lower opening 33B (see FIG. 9).
  • the left insertion hole 32HL and the right insertion hole 32HR (see FIG. 3) formed in the upper member 32 are in a state of communicating with the gap T.
  • FIG. 11 is a plan view of the outer tub cover 31.
  • the rotation center portion 12B of the lid 12 is fitted (see FIG. 2).
  • the rotation shaft 12L of the rotation center portion 12B is inserted into the left insertion hole 32HL
  • the rotation shaft 12R of the rotation center portion 12B is inserted into the right insertion hole 32HR (see FIG. 2).
  • the cover 12 is supported by the upper member 32 of the outer tub cover 31 so as to be rotatable about the rotation axis K (refer to FIG. 1).
  • the horizontal wall 32EB adjacent to the recess 32G of the upper member 32 overlaps with each of the water discharge holes 33J in the lower member 33 in a plan view.
  • the left drain hole 33J is located directly below the left end of the horizontal wall 32EB
  • the right drain hole 33J is located directly below the right end of the horizontal wall 32EB
  • all the drain holes 33J are aligned in a row in the front Below.
  • such a water discharge hole 33J is arranged around the rotation center portion 12B of the cover 12 fitted into the recess 32G (see FIG. 10).
  • each water discharge hole 33J faces the inner tub main body 30 from the upper side Z1 (refer to FIG. 1).
  • the outer tub cover 31 In order to ensure the strength required to support the lid 12 in the outer tub cover 31, it is necessary to provide a reinforcement rib 32M on the upper member 32 that actually supports the lid 12 (see FIG. 5). On the other hand, it is also necessary to provide the outer tub cover 31 with a guide portion 31C that guides water to the opening 4D of the washing tub 4 (see FIG. 10). In this case, it is difficult to form the outer barrel cover 31 with only one member. Therefore, the outer barrel cover 31 is composed of the upper member 32 provided with the rib 32M and the lower member 33 provided with the guide portion 31C. Pose. As a result, the above-mentioned gap T occurs in the outer tub cover 31.
  • Part of the water passing between the outer tub cover 31 and the annular wall 4C of the washing tub 4 may pass between the outer edge portion 33E of the lower member 33 and the outer edge portion 32I of the upper member 32, and the inner edge portion of the lower member 33 Between 33D and the inner peripheral surface portion 32C of the upper member 32, a gap T (see FIG. 9) that enters the outer tub cover 31 is entered. However, the water entering the gap T will fall into the outer tub 3 through the water discharge hole 33J.
  • the water discharge hole 33J is arranged around the rotation center portion 12B of the cover 12 when viewed from above, that is, near the insertion hole 32H provided in the upper member 32 and into which the rotation shaft 12L and the rotation shaft 12R of the cover 12 are inserted (refer to ( Figure 10 and Figure 11).
  • the plurality of water discharge holes 33J are arranged linearly in the left-right direction X along the recess 32G in the upper member 32 that is accommodated in the rotation center portion 12B and the rotation axis K.
  • the water discharge holes 33J are arranged on the left and right sides of the left insertion hole 32HL into which the rotating shaft 12L is inserted, and are arranged on the left and right sides of the right insertion hole 32HR into which the rotating shaft 12R is inserted, respectively.
  • the water can be dropped into the outer tub 3 from any water discharge hole 33J. This can reliably prevent water from leaking from the insertion hole 32H to the outside of the outer tub 3.
  • the water drain hole 33J suppresses water from remaining in the gap T between the lower member 33 and the upper member 32, and therefore, the generation of mold and odor can be suppressed.
  • the axis J of the washing tub 4 in the vertical washing machine 1 is arranged so as to extend vertically along the vertical direction Z in the above-described embodiment (see FIG. 1), but the vertical washing machine 1 also includes the axis J relative to the vertical The configuration in which the direction Z is slightly inclined.
  • the upper surface portion 33C of the lower member 33 in the outer tub cover 31 may be provided with an inclined surface 33CA inclined toward the water discharge hole 33J (see FIG. 9).
  • the water entering the gap T can be guided to the water discharge hole 33J through the inclined surface 33CA, and therefore, the water can be reliably dropped into the outer tub 3 from the water discharge hole 33J.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

一种立式洗衣机，包括外桶（3）、盖（12）、以及配置于外桶（3）内的洗涤桶（4）；外桶（3）具有外桶主体（30）和形成有从上侧(Z1)与外桶主体（30）内连通的出入口(31A)并与外桶主体（30）连接的外桶罩(31)；盖（12）可转动地由外桶罩(31)支承，打开/关闭出入口(31A)；外桶罩(31)包括上构件(32)和下构件(33)，上构件(32)具有供盖（12）的转动轴（12L）插入的插入孔(32H)，下构件(33)从下侧(Z2)装配于上构件(32)；在下构件(33)设置有在洗涤桶（4）旋转时将于外桶（3）和洗涤桶（4）之间上升的水引导至开口（4D）的引导部，和使水从上构件(32)与下构件(33)之间落到外桶内的放水孔(33J)。能防止上升的水漏到外桶（3）外面。

Description

立式洗衣机 技术领域
本发明涉及一种立式洗衣机。
背景技术
下述专利文献1所述的洗衣机包括：洗衣机外框、配置于洗衣机外框内的接水桶、收容于接水桶的洗涤兼脱水桶以及设置于接水桶的上部的接水桶罩。当洗涤兼脱水桶进行旋转时，洗涤水在接水桶与洗涤兼脱水桶之间上升，通过接水桶罩瀑布状地淋至洗涤兼脱水桶内的洗涤物上。
在如专利文献1所述的洗衣机那样使水在接水桶与洗涤兼脱水桶之间上升之后淋至洗涤兼脱水桶内的洗涤物上的结构中，上升的水有可能会漏到接水桶外面。
现有技术文献
专利文献
专利文献1：日本专利第3022490号公报
发明内容
发明所要解决的问题
本发明是在该背景下完成的，其目的在于提供一种立式洗衣机，其能在使水于外桶与洗涤桶之间上升之后淋至洗涤桶内的洗涤物上的结构中，防止上升的水漏到外桶外面。
用于解决问题的方案
本发明是一种立式洗衣机，包括：外桶，可蓄水，具有筒状的外桶主体和形成有从上侧与所述外桶主体内连通的出入口并与所述外桶主体连接的外桶 罩；盖，可转动地由所述外桶罩支承，打开/关闭所述出入口；驱动部，产生驱动力；洗涤桶，配置于所述外桶内，具有用于使水在所述洗涤桶与所述外桶之间往来的贯通孔和从下侧与所述出入口对置的开口，收容通过所述出入口和所述开口被投入的洗涤物，接受所述驱动部的驱动力而进行旋转；以及控制部，通过所述驱动部使所述洗涤桶旋转，由此使所述外桶内的水在所述外桶与所述洗涤桶之间上升，从所述开口淋至所述洗涤桶内的洗涤物上，所述外桶罩包括上构件和下构件，所述上构件具有供所述盖的转动轴插入的插入孔，所述下构件设置有在所述洗涤桶旋转时将于所述外桶与所述洗涤桶之间上升的水引导向所述开口的引导部，从下侧装配于所述上构件，在所述下构件，设置有使水从所述上构件与所述下构件之间落到所述外桶内的放水孔。
此外，本发明的特征在于，在俯视观察时所述放水孔配置于所述盖的转动中心部的周边。
此外，本发明的特征在于，所述上构件具有向下侧延伸并包围所述下构件的环状的外缘部，在所述下构件的外周面部的上端部，设置有越往上侧越向所述出入口侧倾斜的倾斜部。
发明效果
根据本发明，当洗涤桶进行旋转时，外桶内的水在外桶与洗涤桶之间上升，从洗涤桶的开口淋至洗涤桶内的洗涤物上。外桶中的形成有从上侧与洗涤桶的开口对置的出入口的外桶罩被分割为上构件和下构件，上构件可转动地支承打开/关闭出入口的盖，下构件设置有将在外桶与洗涤桶之间上升的水引导向开口的引导部。因此，在上构件与下构件之间存在间隙。即使在外桶与洗涤桶之间上升的水进入上构件与下构件之间，这些水也会穿过设置于下构件的放水孔落到外桶内。由此，能防止上升并进入上构件与下构件之间的水从上构件中的供盖的转动轴插入的插入孔漏到外桶外面。
此外，根据本发明，俯视观察时放水孔配置于盖的转动中心部的周边，也就是上构件中的供盖的转动轴插入的插入孔的附近。由此，能在进入上构件与下构件之间的水到达插入孔之前，使这些水从放水孔落到外桶内，因此，能可靠地防止水从插入孔漏到外桶外面。
此外，根据本发明，通过使下构件从下侧嵌入上构件中的环状的外缘部的内侧，从而组装出外桶罩。这时，下构件中，设置于下构件的外周面部的上端部的倾斜部最先与上构件的外缘部接触，由此下构件被引导向上构件的外缘部的内侧。因此，下构件能顺利地嵌入上构件的外缘部的内侧，因而能容易地组装外桶罩。
附图说明
图1是本发明的一实施方式的立式洗衣机的示意性纵剖右视图。
图2是立式洗衣机中所含的盖的俯视图。
图3是立式洗衣机中所含的外桶罩的分解立体图。
图4是构成外桶罩的上构件的俯视图。
图5是上构件的仰视图。
图6是构成外桶罩的下构件的俯视图。
图7是下构件的仰视图。
图8是处于分离状态的上构件和下构件的纵剖视图。
图9是处于组合状态的上构件和下构件的纵剖视图。
图10是完成的外桶罩的仰视图。
图11是完成的外桶罩的俯视图。
附图标记说明
1：立式洗衣机；3：外桶；4：洗涤桶；4D：开口；4E：贯通孔；6：驱动部；12：盖；12B：转动中心部；12L：转动轴；12R：转动轴；21：控制部；30：外桶主体；31：外桶罩；31A：出入口；31C：引导部；32：上构件；32H：插入孔；32I：外缘部；33：下构件；32EA：外周面部；33EE：倾斜部；33J：放水孔；Q：洗涤物；Z1：上侧；Z2：下侧。
具体实施方式
以下，参照附图，对本发明的实施方式进行具体说明。图1是本发明的一实施方式的立式洗衣机1的示意性纵剖右视图。将与图1的纸面垂直的方向称为立式洗衣机1的左右方向X，将图1中的左右方向称为立式洗衣机1的前后方向Y，将图1中的上下方向称为立式洗衣机1的上下方向Z。左右方向X以及前后方向Y包括在水平方向H中。左右方向X当中，将图1的纸面的里侧称为左侧X1，将图1的纸面的表侧称为右侧X2。前后方向Y当中，将图1的左侧称为前侧Y1，将图1中的右侧称为后侧Y2。上下方向Z当中，将上侧称为上侧Z1，将下侧称为下侧Z2。立式洗衣机1包括：箱体2、配置于箱体2内的外桶3、配置于外桶3内的洗涤桶4、配置于洗涤桶4内的波轮5以及配置于箱体2内的比外桶3靠下侧Z2的驱动部6和离合器7。
箱体2例如为金属制，形成为箱状。在箱体2的上表面2A形成有连通箱体2的内外的开口2B。在上表面2A设置有打开/关闭开口2B的门10。门10作为立式洗衣机1中的外盖发挥作用。在上表面2A中的开口2B的周围，设置有由液晶操作面板等构成的显示操作部11。立式洗衣机1的使用者通过对显示操作部11进行操作，能选择立式洗衣机1中执行的洗涤运转的运转条件，或者对立式洗衣机1指示洗涤运转的开始、停止等。显示操作部11显示提供给使用者的信息。
外桶3例如为树脂制，形成为有底圆筒状。外桶3具有沿上下方向Z配置的筒状的、详细而言近似圆筒状的外桶主体30和从上侧Z1与外桶主体30的上端连接的外桶罩31。外桶主体30具有近似圆筒状的圆周壁30A和与圆周壁30A的下端连接并从下侧Z2堵住圆周壁30A的中空部分的底壁30B。圆周壁30A的上端为外桶主体30的上端。圆周壁30A的中空部分为外桶主体30的内部空间。底壁30B形成为大致水平延伸的圆板状，在底壁30B的圆心位置形成有贯通底壁30B的贯通孔30C。外桶罩31形成为沿圆周壁30A的上端向圆周壁30A的圆心侧突出的环状。在外桶罩31的内侧，形成有从上侧Z1与圆周壁30A的中空部分连通的出入口31A。出入口31A从下侧Z2与箱体2的开口2B对置，处于与开口2B连通的状态。在外桶罩31设置有打开/关闭出入口31A的盖12。盖12作为立式洗衣机1中的内盖发挥作用。盖12以能绕沿左右方向X延伸的转动轴线K转动的方式由外桶罩31支承。在外桶罩31的下表面，设置有将出 入口31A包边并且向斜下侧倾斜的引导面31B。
在外桶罩31中的比出入口31A靠后侧Y2的部分，从上侧Z1连接有与自来水龙头连接的供水路13。在供水路13的中途设置有例如由电磁阀构成的供水阀14。在外桶3的底壁30B，从下侧Z2连接有排水路15。在排水路15的中途设置有排水阀16。当在排水阀16关闭的状态下供水阀14打开时，从供水路13向外桶3内供水，由此能向外桶3内蓄水。当供水阀14关闭时，停止供水。当排水阀16打开时，外桶3内的水从排水路15排出到机外。
洗涤桶4例如为金属制，形成为比外桶3小一圈的有底圆筒状，内部能收容洗涤物Q。洗涤桶4同轴状地配置于外桶3内。收容于外桶3内的状态的洗涤桶4能绕作为其中心轴沿上下方向Z延伸的轴线J进行旋转。洗涤桶4具有：大致圆筒状的圆周壁4A，沿上下方向Z配置；底壁4B，从下侧Z2堵住圆周壁4A的中空部分；以及环状的环状壁4C，沿圆周壁4A的上端缘向轴线J侧突出。以下，将以轴线J为中心的径向称为径向R，径向R中，将朝向轴线J的一侧称为径向内侧R1，将远离轴线J的一侧称为径向外侧R2。
圆周壁4A的内周面为洗涤桶4的内周面。圆周壁4A处于被外桶3的圆周壁30A包围的状态。底壁4B设置于洗涤桶4的下端。环状壁4C处于从下侧Z2与外桶3的外桶罩31对置的状态。在环状壁4C的内侧形成有开口4D。开口4D位于洗涤桶4的上端，使圆周壁4A的中空部分向上侧Z1露出。开口4D处于从下侧Z2与外桶3的出入口31A对置并连通的状态。使用者经由敞开的开口2B、出入口31A以及开口4D，从上侧Z1将洗涤物Q投入取出洗涤桶4。
在洗涤桶4的圆周壁4A和底壁4B，形成有多个贯通孔4E，外桶3内的水还能经由贯通孔4E在外桶3与洗涤桶4之间往来从而蓄于洗涤桶4内。因此，外桶3内的水位与洗涤桶4内的水位一致。需要说明的是，贯通孔4E也可以不设置于圆周壁4A而只设置于底壁4B。
洗涤桶4的底壁4B形成为圆板状，在外桶3的底壁30B的上侧Z1与其隔开间隔地大致平行延伸。在底壁4B中的与轴线J一致的圆心位置，形成有贯通底壁4B的贯通孔4F。在底壁4B设有管状的支承轴17，该支承轴17包围贯通孔4F并沿着轴线J向下侧Z2延伸出。支承轴17插通于外桶3的底壁30B的贯通孔30C，支承轴17的下端部位于底壁30B的下侧Z2。
波轮5形成为以轴线J为圆心的圆盘状，在洗涤桶4内配置于底壁4B上。波轮5中，在面向洗涤桶4的开口4D的上表面设置有辐射状配置的多个叶片5A。在波轮5设置有从其圆心沿着轴线J向下侧Z2延伸的旋转轴18。旋转轴18插通于支承轴17的中空部分，旋转轴18的下端部位于外桶3的底壁30B的下侧Z2。
驱动部6为变频马达等电动马达。驱动部6在箱体2内配置于外桶3的下侧Z2。驱动部6具有以轴线J为中心进行旋转的输出轴19，将产生的驱动力从输出轴19输出。
离合器7介于支承轴17和旋转轴18各自的下端部与从驱动部6向上侧Z1突出的输出轴19的上端部之间。离合器7将驱动部6从输出轴19输出的驱动力选择性地传递给支承轴17和旋转轴18中的一方或双方。当来自驱动部6的驱动力传递至支承轴17时，洗涤桶4接受驱动部6的驱动力而绕轴线J进行旋转。当来自驱动部6的驱动力传递至旋转轴18时，波轮5接受驱动部6的驱动力而绕轴线J进行旋转。使用公知的传递机构作为离合器7。
立式洗衣机1包括由CPU和存储器构成并内置于箱体2内的控制部21。驱动部6、离合器7、显示操作部11、供水阀14以及排水阀16分别与控制部21电连接。控制部21使驱动部6接通而使其进行驱动，使驱动部6断开而使其停止。控制部21通过控制离合器7，将驱动部6的驱动力的传递目标切换为洗涤桶4和波轮5中的一方或双方。当使用者操作显示操作部11来选择运转条件等时，控制部21接收该选择。控制部21控制显示操作部11的显示内容。控制部21对供水阀14和排水阀16的打开/关闭进行控制。
控制部21通过控制驱动部6、离合器7、供水阀14以及排水阀16的工作，执行洗涤运转。洗涤运转具有：对洗涤物Q进行洗涤的洗涤过程、洗涤过程之后对洗涤物Q进行漂洗的漂洗过程以及漂洗过程之后使洗涤桶4旋转而将洗涤物Q脱水的脱水过程。立式洗衣机1也可以是在脱水过程之后还执行烘干洗涤物Q的烘干过程的洗干一体机。当使用者将洗涤物Q和洗涤剂投入洗涤桶4内并通过显示操作部11的操作来指示洗涤运转开始时，控制部21开始洗涤过程。
随着洗涤过程开始，首先，控制部21在排水阀16关闭的状态下持续地打开供水阀14，向洗涤桶4内供水，向洗涤桶4内蓄水至规定水位W。之后，控 制部21在根据需要切换离合器7而使得驱动部6的驱动力传递至波轮5之后，通过使驱动部6进行驱动而使波轮5旋转规定的时间。由此，洗涤桶4内的洗涤物Q被旋转的波轮5搅拌清洗。而且，洗涤物Q的污垢被溶于水的洗涤剂分解。
搅拌清洗之后，控制部21切换离合器7后使驱动部6接通而使驱动部6的驱动力传递至洗涤桶4。由此，蓄有水的洗涤桶4例如以200rpm高速旋转。如此一来，在外桶3内产生涡流，外桶3内的水面S以轴线J侧的中央部变低而外周部变高的方式弯曲成U字状(参照图1的细双点划线)。由此，外桶3内的水在外桶3的圆周壁30A与洗涤桶4的圆周壁4A之间上升。上升的水穿过在外桶3的外桶罩31的下表面处排列设置的引导部31C之间，一边螺旋状地旋转一边落下，从洗涤桶4的开口4D落下，淋至洗涤桶4内的洗涤物Q(参照图1的粗双点划线箭头)。这时，外桶3的外桶罩31的引导面31B将穿过引导部31C之间的水朝向开口4D向下引导。通过由洗涤桶4的旋转产生的来自上侧Z1的洒水，还能可靠地洗涤开口4D侧的洗涤物Q。这样的洗涤桶4的旋转在持续规定的时间之后停止，由此，洗涤过程结束。
接着，作为洗涤过程之后的脱水过程，也就是中间脱水过程，控制部21在排水阀16打开的状态下使洗涤桶4高速旋转。通过由该高速旋转产生的离心力，洗涤桶4内的洗涤物被脱水。从洗涤物渗出的水通过脱水而从排水路15排出到机外。在中间脱水过程的最后阶段，控制部21关闭排水阀16。
接着，控制部21执行漂洗过程。作为漂洗过程的一个例子，控制部21在打开排水阀16的状态下间歇地打开供水阀14，由此向洗涤桶4内喷淋供水。这种状态下，控制部21使洗涤桶4例如以30rpm低速旋转而使得喷淋遍布洗涤物Q的所有角落。由此，洗涤桶4内的洗涤物Q被全方位地漂洗。作为漂洗过程的其他例子，与洗涤过程相同，控制部21在供水之后使波轮5旋转从而将洗涤物Q搅拌漂洗，之后使洗涤桶4旋转而使水在外桶3与洗涤桶4之间上升后从上侧Z1淋至洗涤桶4内的洗涤物Q。
可以执行两次以上漂洗过程，这种情况下，控制部21在漂洗过程与接下来的漂洗过程之间执行中间脱水过程，在最后的漂洗过程之后，执行与中间脱水过程相同的最终脱水过程。洗涤桶4的旋转条件可以不同于中间脱水过程和最 终脱水过程，特别是，最终脱水过程中洗涤桶4的最高转速比中间脱水过程中洗涤桶4的最高转速高。随着最终脱水过程结束，洗涤运转结束。
接着，对盖12进行详细说明。图2是盖12的俯视图。盖12构成为大致左右对称。以关闭外桶罩31的出入口31A的关闭状态为基准，盖12包括具有向前侧Y1鼓出的半圆形状的板状的主体部12A和从主体部12A的后端缘向后侧Y2突出并沿左右方向X延伸的筒状的转动中心部12B。在左右方向X上，转动中心部12B比主体部12A的后端缘短。因此，转动中心部12B的左端位于该后端缘的左端的右侧X2，转动中心部12B的右端位于该后端缘的右端的左侧X1。也可以将主体部12A的后端部视为转动中心部12B的一部分。在转动中心部12B的左端面，设置有向左侧X1突出的转动轴12L，在转动中心部12B的右端面，设置有向右侧X2突出的转动轴12R。盖12的转动轴线K穿过转动轴12L和转动轴12R各自的中心。
接着，对外桶罩31进行详细说明。图3是外桶罩31的分解立体图。外桶罩31通过组合上构件32和下构件33这两个构件而构成。
上构件32形成为大致左右对称的圆盘状(也参照图4)。在上构件32中的靠后的区域，形成有与供水路13等连接的单个或多个上连接口32A。在本实施方式中，与立式洗衣机1是洗干一体机相对应地，三个上连接口32A沿左右方向X排列设置。这种情况下，在左端的上连接口32A连接有供水路13，在右端的上连接口32A连接有用于在烘干过程时向洗涤桶4内提供暖风的供气路(未图示)，在正中间的上连接口32A连接有用于在烘干过程时将洗涤桶4内的潮湿空气排出的排风路(未图示)。在上构件32中的上连接口32A的前侧Y1，形成有构成出入口31A的上开口32B。上开口32B形成为向前侧Y1鼓出的半圆形状以便与盖12的主体部12A匹配，沿上下方向Z贯通上构件32。在外桶罩31组装于立式洗衣机1的状态下，洗涤桶4的沿上下方向Z延伸的轴线J穿过出入口31A内，与外桶罩31的圆心对准。
在上构件32中划分出上开口32B的内周面部32C形成为半圆形状，具有向前侧Y1鼓出的圆弧状的前内周面部32D和沿左右方向X大致直线状延伸并与前内周面部32D的左右的后端相连的后内周面部32E。前内周面部32D一体地具有：从上构件32的上表面部32F中的与前内周面部32D的交界处向下侧Z2 延伸的上纵壁32DA、从上纵壁32DA的下端向径向内侧R1突出的横壁32DB以及从横壁32DB中的径向内侧R1的端部向下侧Z2延伸的下纵壁32DC。俯视观察时上纵壁32DA、横壁32DB以及下纵壁32DC形成为向前侧Y1鼓出的圆弧状。
后内周面部32E一体地具有：从上构件32的上表面部32F中的与后内周面部32E的交界处向下侧Z2延伸的上纵壁32EA、从上纵壁32EA的下端向径向内侧R1(这种情况下向前侧Y1)突出的横壁32EB以及从横壁32EB的前端向下侧Z2延伸的下纵壁32EC。上纵壁32EA沿左右方向X直线状延伸，架设于上纵壁32DA的左右的后端之间。俯视观察时上纵壁32EA和上纵壁32DA弯曲且连续。横壁32EB沿左右方向X直线状延伸，架设于横壁32DB的左右的后端之间。俯视观察时横壁32EB和横壁32DB弯曲且连续。下纵壁32EC沿左右方向X直线状延伸，架设于下纵壁32DC的左右的后端之间。俯视观察时下纵壁32EC和下纵壁32DC弯曲且连续。
在上构件32的上表面部32F中的从后侧Y2与后内周面部32E的中央部邻接的位置，设置有沿左右方向X直线状延伸并向下侧Z2凹陷的凹部32G。凹部32G从后内周面部32E的上纵壁32EA向后侧Y2凹陷。由此，上纵壁32EA被分离为比凹部32G靠左侧X1的左部分32EL和比凹部32G靠右侧X2的右部分32ER。上构件32具有：从左部分32EL的右端向后侧Y2延伸的左纵壁32GL、从右部分32ER的左端向后侧Y2延伸的右纵壁32GR、架设于左纵壁32GL和右纵壁32GR的后端之间的里纵壁32GA以及架设于左纵壁32GL和右纵壁32GR的下端之间并与里纵壁32GA的下端相连的底壁32GB。左纵壁32GL、右纵壁32GR、里纵壁32GA以及底壁32GB构成凹部32G的内表面部。凹部32G被分隔在沿左右方向X对置的左纵壁32GL和右纵壁32GR之间，被里纵壁32GA从后侧Y2分隔，被底壁32GB从下侧Z2分隔，向前侧Y1和上侧Z1敞开。
在上构件32形成有左右一对插入孔32H。左侧X1的插入孔32H是形成于与凹部32G的左端邻接的左纵壁32GL并向左侧X1延伸的左插入孔32HL。右侧X2的插入孔32H是形成于与凹部32G的右端邻接的右纵壁32GR并向右侧X2延伸的右插入孔32HR。
上构件32具有向下侧Z2延伸的环状(详细地说是圆环状)的外缘部32I。 在外缘部32I的外周面，分别设置有单个或多个供用于将外桶罩31固定于外桶主体30的螺钉(未图示)插通的凸缘部32J和与外桶主体30卡合的钩状的卡合部32K。
图5是上构件32的仰视图。在上构件32中的被外缘部32I包围的下表面部32L，设置有用于加强上构件32的多个肋32M。仰视观察时，肋32M从上开口32B辐射状延伸、或沿绕轴线J的周向P延伸、或以包围上连接口32A的方式延伸。在下表面部32L，以包围上开口32B的方式排列设置有向下侧Z2突出的多个上凸起32N。上凸起32N还设置于向后侧Y2远离上开口32B的上连接口32A的周边。在各个上凸起32N的下表面形成有向上侧Z1延伸的螺孔32P。
图6是下构件33的俯视图。下构件33形成为大致左右对称的圆盘状。在下构件33中的靠后的区域形成有与上构件32的上连接口32A相同数量的下连接口33A。在下构件33中的下连接口33A的前侧Y1，形成有构成出入口31A的下开口33B。下开口33B形成为向前侧Y1鼓出的半圆形状以便与上构件32的上开口32B匹配，沿上下方向Z贯通下构件33。在下构件33的上表面部33C设置有将下开口33B的整个区域包边并向上侧Z1突出的内缘部33D(也参照图3)。下构件33具有环状(详细地说是圆环状)的外缘部33E。外缘部33E从下构件33的上表面部33C向上侧Z1突出，从下构件33的下表面部33F(参照图7)向下侧Z2突出。因此，外缘部33E及其周边的下构件33的纵端面形成为大致T字状(参照图8)。外缘部33E的外周面部33EA是下构件33的外周面部。在外缘部33E中的从上表面部33C向上侧Z1突出的上部分，设置有多个缺口33EB，由此，外缘部33E的上部分被沿外缘部33E的周向P等间隔排列的多个肋33EC分割(参照图3)。在外缘部33E中的从上表面部33C向下侧Z2突出的下部分，沿周向P排列地设置有向下侧Z2和径向外侧R2双方敞开的多个凹陷33ED(参照图3)。
在上表面部33C以包围下开口33B的方式排列设置有与上构件32的上凸起32N相同数量的下凸起33G。在各个下凸起33G形成有沿上下方向Z贯通下凸起33G的插通孔33H。插通孔33H从下凸起33G的上端面向上侧Z1敞开，从下构件33的下表面部33F向下侧Z2敞开。沿上下方向Z贯通下构件33的其他插通孔33I设置于向后侧Y2远离下开口33B的下连接口33A的周边。
在下构件33中的从后侧Y2与下开口33B邻接的位置，设置有沿上下方向Z贯通下构件33的多个放水孔33J。在本实施方式中，在半圆形的下开口33B中的沿着向左右方向X延伸的后端缘33BA，直线状排列地设置有八个直径为5mm的圆形的放水孔33J。这些放水孔33J左右对称地配置。多个放水孔33J既可以等间隔地配置，也可以使相邻的放水孔33J的间隔因场所而异。在本实施方式中，左端的放水孔33J与其右邻的放水孔33J的间隔比在中央侧相邻的放水孔33J的间隔窄。右端的放水孔33J与其左邻的放水孔33J的间隔同样也窄。
图7是下构件33的仰视图。在下构件33的下表面部33F设置有上述的述多个引导部31C。这些引导部31C是从下表面部33F向下侧Z2突出的肋，沿绕轴线J的周向P等间隔地排列设置。各个引导部31C从外缘部33E中的从下表面部33F向下侧Z2突出的下部分向径向内侧R1延伸。详细而言，各个引导部31C从外缘部33E的下部分向周向P中的一个方向(图7中逆时针方向)弯曲，并且向径向内侧R1延伸，在到达内缘部33D之前弯曲，向该一个方向大致直线状延伸。
接着，对下构件33向上构件32的装配进行说明。图8是处于分离状态的上构件32和下构件33的圆周上一处的纵剖视图。首先，操作者将下构件33配置于上构件32的下侧Z2，作为一个例子，通过使下构件33上升从而接近上构件32。需要说明的是，操作者也可以通过使上构件32下降从而使下构件33接近上构件32。总之，首先，下构件33的外缘部33E的外周面部33EA嵌入上构件32的外缘部32I的内侧，详细而言嵌入径向内侧R1，由此，下构件33被外缘部32I包围。
在下构件33的外缘部33E的外周面部33EA的上端部，设置有越往上侧Z1越向下开口33B侧倾斜的倾斜部33EE。在为了组装外桶罩31而使下构件33从下侧Z2嵌入上构件32的外缘部32I的内侧时，下构件33中，倾斜部33EE最先与上构件32的外缘部32I接触，由此，下构件33的外缘部33E被引导向外缘部32I的内侧。因此，下构件33能顺利地嵌入上构件32的外缘部32I的内侧，因而能容易地组装外桶罩31。
当操作者进一步使下构件33从下侧Z2接近上构件32时，下构件33的内缘部33D嵌入上构件32的内周面部32C的下纵壁32DC和下纵壁32EC的外侧， 详细而言嵌入径向外侧R2。在内缘部33D设置有与倾斜部33EE相同的倒角部33DA，因此，内缘部33D顺利地嵌入下纵壁32DC和下纵壁32EC的外侧。此外，在上构件32的外缘部33E的内周面部的上端部，设置有多个凸状的卡合部32IA，随着下构件33接近上构件32，下构件33的外缘部33E翻越卡合部32IA。
如图9所示，当下构件33的外缘部33E从下侧Z2与上构件32的下表面部32L的外周部接触，下构件33的内缘部33D从下侧Z2与上构件32的内周面部32C的横壁32DB和横壁32EB接触时，下构件33从下侧Z2被装配至上构件32。这种状态下，上构件32的外缘部33E的内周面部处的各个卡合部32IA从下侧Z2嵌入设置于下构件33的下端部的任意凹陷33ED(参照图3)，由此，上构件32和下构件33被临时组装起来。这时，下构件33的下连接口33A从下侧Z2与上构件32的上连接口32A一一连通(参照图10)。此外，下构件33的下凸起部33G的上端面从下侧Z2与上构件32中的相应的上凸起部32N的下端面接触，下凸起部33G的插通孔33H与上凸起部32N的螺孔32P连通(参照图5以及图6)。此外，下构件33中的下连接口33A周边的插通孔33I与上构件32中的上连接口32A周边的上凸起部32N的螺孔32P连通。
在上构件32和下构件33被临时组装的状态下，当操作者将螺钉B从下侧Z2一一插通下构件33的插通孔33H和插通孔33I(参照图7)而装配于上构件32中的相应的螺孔32P时，如图10所示，上构件32与下构件33被相互固定，完成外桶罩31。
与上构件32和下构件33相同，完成的外桶罩31形成为大致左右对称的圆盘状。外桶罩31中，上构件32的上开口32B与下构件33的下开口33B合起来构成出入口31A。下构件33的下表面部33F中的将下开口33B包边的内周部作为上述的引导面31B，被配置成朝向下开口33B向斜下侧倾斜(参照图9)。上构件32与下构件33之间存在间隙T(参照图9)，外桶罩31是将间隙T作为中空部分的中空体。形成于上构件32的左插入孔32HL和右插入孔32HR(参照图3)处于与间隙T连通的状态。
图11是外桶罩31的俯视图。在外桶罩31中的左插入孔32HL与右插入孔32HR之间的凹部32G，嵌入有盖12的转动中心部12B(参照图2)。转动中心部12B的转动轴12L插入左插入孔32HL，转动中心部12B的转动轴12R插入 右插入孔32HR(参照图2)。由此，盖12以能绕转动轴线K(参照图1)转动的方式由外桶罩31的上构件32支承。外桶罩31中，俯视观察时上构件32的凹部32G的前邻的横壁32EB与下构件33中的各个放水孔33J重叠。详细而言，左端的放水孔33J位于横壁32EB的左端部的正下方，右端的放水孔33J位于横壁32EB的右端部的正下方，所有的放水孔33J以排成一列的状态位于横壁32EB的正下方。俯视观察时，这样的放水孔33J配置于嵌入凹部32G的盖12的转动中心部12B的周边(参照图10)。在外桶罩31装配于外桶主体30的状态下，各个放水孔33J从上侧Z1面向外桶主体30内(参照图1)。
在外桶罩31，为了确保用于支承盖12所需的强度，需要在实际支承盖12的上构件32上设置加强用的肋32M(参照图5)。另一方面，还需要在外桶罩31上设置将水引导向洗涤桶4的开口4D的引导部31C(参照图10)。这种情况下，只用一个构件构成外桶罩31的方案在成型上困难，因此，外桶罩31由设置有肋32M的上构件32和设置有引导部31C的下构件33这两个构件构成。由此，会导致在外桶罩31内产生上述的间隙T。
在洗涤过程、漂洗过程中，在洗涤桶4旋转时于外桶3与洗涤桶4之间上升的水会通过外桶罩31与洗涤桶4的环状壁4C之间。这时，这些水被设置于外桶罩31的下构件33的下表面部33F的各个引导部31C引导向洗涤桶4的开口4D，然后淋至洗涤桶4内的洗涤物Q上。通过外桶罩31与洗涤桶4的环状壁4C之间的一部分水可能会穿过下构件33的外缘部33E与上构件32的外缘部32I之间、下构件33的内缘部33D与上构件32的内周面部32C之间，进入外桶罩31内的间隙T(参照图9)。但是，进入间隙T的水会穿过放水孔33J落到外桶3内。由此，能防止在外桶3与洗涤桶4之间上升并进入上构件32与下构件33之间的水从上构件32中的供盖12的转动轴12L和转动轴12R插入的插入孔32H穿过上构件32的凹部32G漏到外桶3外面。
此外，俯视观察时，放水孔33J配置于盖12的转动中心部12B的周边，也就是配置于上构件32中的供盖12的转动轴12L和转动轴12R插入的插入孔32H的附近(参照图10以及图11)。在本实施方式中，多个放水孔33J沿上构件32中的纳入转动中心部12B的凹部32G和转动轴线K，在左右方向X上配置成直线状。此外，放水孔33J分别配置于供转动轴12L插入的左插入孔32HL的左右 两侧，分别配置于供转动轴12R插入的右插入孔32HR的左右两侧。通过这样的结构，能在进入上构件32与下构件33的间隙T的水到达某个插入孔32H之前，使这些水从任意的放水孔33J落到外桶3内。由此，能可靠地防止水从插入孔32H漏到外桶3外面。此外，通过放水孔33J抑制了水残留在下构件33与上构件32之间的间隙T中，因此，能抑制霉菌、臭味的产生。
本发明不局限于以上说明的实施方式，可以在技术方案所述的范围内进行各种变更。
例如，立式洗衣机1中的洗涤桶4的轴线J在上述的实施方式中以沿着上下方向Z垂直延伸的方式配置(参照图1)，但是立式洗衣机1中也包括轴线J相对于上下方向Z稍微倾斜地配置的结构。
可以是，在外桶罩31内的下构件33的上表面部33C，设有以朝向放水孔33J下降的方式倾斜的倾斜面33CA(参照图9)。由此，能通过倾斜面33CA将进入间隙T的水引导向放水孔33J，因此，能使这些水从放水孔33J可靠地落到外桶3内。

Claims (3)

  1. 一种立式洗衣机，其特征在于，包括：
    外桶，可蓄水，具有筒状的外桶主体和形成有从上侧与所述外桶主体内连通的出入口并与所述外桶本体连接的外桶罩；
    盖，可转动地由所述外桶罩支承，打开/关闭所述出入口；
    驱动部，产生驱动力；
    洗涤桶，配置于所述外桶内，具有用于使水在所述洗涤桶与所述外桶之间往来的贯通孔和从下侧与所述出入口对置的开口，收容通过所述出入口和所述开口被投入的洗涤物，接受所述驱动部的驱动力而进行旋转；以及
    控制部，通过所述驱动部使所述洗涤桶旋转，由此使所述外桶内的水在所述外桶与所述洗涤桶之间上升，从所述开口淋至所述洗涤桶内的洗涤物上，
    所述外桶罩包括上构件和下构件，所述上构件具有供所述盖的转动轴插入的插入孔，所述下构件设置有在所述洗涤桶旋转时将于所述外桶与所述洗涤桶之间上升的水引导向所述开口的引导部，从下侧装配于所述上构件，
    在所述下构件，设置有使水从所述上构件与所述下构件之间落到所述外桶内的放水孔。
  2. 根据权利要求1所述的立式洗衣机，其特征在于，
    在俯视观察时所述放水孔配置于所述盖的转动中心部的周边。
  3. 根据权利要求1或2所述的立式洗衣机，其特征在于，
    所述上构件具有向下侧延伸并包围所述下构件的环状的外缘部，
    在所述下构件的外周面部的上端部，设置有越往上侧越向所述出入口侧倾斜的倾斜部。
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