JP2013074964A - Electric washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric washing machine capable of recycling washing water or rinsing water discharged from a projection part, which is disposed inside an inner tub, in a washing process.SOLUTION: A drum-type electric washing machine comprises a drum tank 100. The drum tank 100 comprises a projection part 200 for lifting the laundry upward by the rotation of the drum tank 100. The projection part 200 comprises: water supply parts 210 disposed at left and right faces thereof for supplying water to the inside of the drum during the rotation of the drum tank 100; and a water discharging part 220 disposed at the upper face thereof for discharging water from the inside of the drum during the rotation of the drum tank 100. The projection part 200 also comprises a partition plate 230 dividing the interior into two rooms. The water supply parts 210 comprise linear slits 211 formed at both side faces of the projection part 200 respectively and a plurality of water supply holes 212 formed at the slits 211. The water discharging part 220 comprises a plurality of small holes, which are formed at the upper face of the projection part 200 and aligned in a lengthwise direction of the projection part 200, to form two lines 221 of small holes. In the lines 221, the small holes are staggered. The partition plate 230 is disposed so as to divide the staggered small holes into a right line and a left line.

Description

  The present invention relates to a drum-type washing machine provided with a cylindrical drum tub in which a rotating shaft is disposed in a substantially horizontal position in a housing.

  A conventional electric washing machine called a drum type includes a cylindrical drum tub with a rotating shaft arranged in a substantially horizontal position in a housing, and a clothing inlet that is disposed on the front surface of the housing and allows clothes to be taken in and out of the drum tub. In general, the clothes put in from the clothes insertion port are washed through washing steps such as washing, rinsing and dehydration while rotating the drum tub.

  In such a drum-type washing machine, lint and the like generated in the washing process may reattach to the laundry and reduce the cleaning power and the rinsing ability.

  As a technique for preventing the lint generated in the washing process from reattaching to the laundry, for example, as described in Patent Document 1 and Patent Document 2, a baffle or lifter disposed inside the drum tub, A technique is known in which a filter is provided on a so-called protrusion, and lint and the like are removed by this filter.

Japanese Utility Model Publication No. 4-93086 JP 2011-78483 A

  Patent Document 1 discloses a technique in which a guide plate is provided inside a hollow baffle and a filter is provided on the upper surface of the baffle. Then, by rotating the drum tub, the washing water or the rinsing water is taken into the baffle through the guide plate, and the lint is removed from the washing water or the rinsing water by passing through the filter. The removed washing water or rinsing water is drained.

  Patent Document 2 discloses a technique for partitioning the inside of a baffle formed in a hollow shape into two chambers by a partitioning portion and storing the filter so that it can be put in and out according to the shape and size of each chamber. Yes. When the drum tub is rotated, the washing water or the rinsing water is taken into the baffle from the water inlet formed on the side surface of the baffle, and the lint is removed from the washing water by passing through the filter. The removed washing water or rinsing water is drained.

  On the other hand, in the drum type washing machine, from the viewpoint of energy saving and water saving, use of washing water or rinsing water drained from the baffle in the washing process is also being studied.

  However, the techniques of Patent Document 1 and Patent Document 2 are intended to remove lint and the like generated in the washing process through a filter, and use washing water or rinsing water drained from the baffle in the washing process. There is no consideration for doing.

  The present invention has been made to solve the above problems, and provides an electric washing machine capable of using washing water or rinsing water drained from a projection called a baffle or lifter in a washing process. There is.

  In order to achieve the above object, an electric washing machine according to the present invention includes a drum tub having a rotating shaft substantially horizontal in a housing, and a clothing input port for putting clothes in and out of the drum tub is provided on the front surface of the housing. In the drum-type electric washing machine provided, the drum tub includes a protrusion for lifting the garment upward along with the rotation, and the protrusion is formed on the left and right side surfaces of the drum tub. A water supply part for supplying water to the inside and a drainage part formed on the upper surface thereof for draining water from the inside during rotation of the drum tank, and a partition plate for partitioning the interior into two chambers. The section includes a strip-shaped groove formed on the left and right side surfaces of the protrusion, and a plurality of water supply holes formed in the groove, and the drainage section includes a plurality of small holes arranged on the upper surface of the protrusion. Along the longitudinal direction of the protrusion. The small hole rows are arranged alternately, and the partition plate is arranged so as to divide the alternately arranged small hole rows into left and right sides. .

  ADVANTAGE OF THE INVENTION According to this invention, the electric washing machine which can utilize the wash water or rinse water drained from the inside of the projection part called a baffle or a lifter in a washing process can be provided.

1 is an external view of an electric washing machine according to the present invention. It is a longitudinal section schematic diagram of an electric washing machine concerning this invention. It is an external view of the inner tank which concerns on this invention. It is an external view of the lifter which concerns on 1st Embodiment. It is the elements on larger scale of the lifter seen from the back. It is a figure which shows the water supply state to a lifter. It is a figure which shows the waste_water | drain state from a lifter. It is an external view of the lifter which concerns on 2nd Embodiment. It is an external view of the lifter which concerns on 3rd Embodiment. It is an external view of the lifter which concerns on 4th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. FIG. 1 to FIG. 7 are diagrams for explaining the first embodiment, FIG. 8 is a diagram for explaining the second embodiment, FIG. 9 is a diagram for explaining the third embodiment, and FIG. 10 is the fourth embodiment. FIG. In addition, the same member or site | part is shown with the same code | symbol, and the overlapping description is abbreviate | omitted.

(First embodiment)
An electric washing machine according to a first embodiment of the present invention will be described with reference to FIGS. First, the configuration of the electric washing machine according to the first embodiment will be described with reference to FIGS. 1 to 4.

  1A and 1B are external views of the electric washing machine according to the first embodiment, in which FIG. 1A is a perspective view and FIG. 1B is a perspective view in an opened state. FIG. 2 is a schematic longitudinal sectional view of the electric washing machine according to the first embodiment. FIG. 3 is an external view of the inner tank, FIG. 3 (a) is a plan view, FIG. 3 (b) is a front view, FIG. 3 (c) is a right side view, and FIG. FIG. 3E is a cross-sectional view taken along the line AA. 4A and 4B are external views of the lifter. FIG. 4A is a perspective view, FIG. 4B is a cross-sectional view, FIG. 4C is a left side view, FIG. 4D is a plan view, and FIG. (E) is a rear view. FIG. 5 is a partially enlarged view of the lifter viewed from the back. FIG. 6 is a diagram illustrating a state of water supply to the lifter, in which FIG. 6 (a) is a state diagram before water supply, FIG. 6 (b) is a state diagram during water supply, and FIG. 6 (c) is a state diagram after water supply. It is. FIG. 7 is a view showing a state of draining from the lifter, FIG. 7 (a) is a state diagram before draining, and FIGS. 7 (b) and 7 (c) are state diagrams during draining.

  Initially, with reference to FIG. 1, the external structure of the electric washing machine which concerns on the 1st Embodiment of this invention is demonstrated.

  In FIG. 1, the electric washing machine generally indicated by reference numeral 1 is a drum type electric washing machine in which a cylindrical drum tank (not shown) is disposed in a horizontal position in a box-shaped housing 10. In this embodiment, the housing 10 is composed of a base housing 11 that forms a skeleton of the box-shaped housing 10, a front cover 12 that covers the front surface of the base housing 11, and a ceiling that covers the top surface of the base housing 11. A plate 13 is included.

  The front cover 12 is composed of a front panel member 14 and a panel member 15 provided on the front panel member 14 and formed of a resin material. The front panel member 14 and the panel member 15 include screws or the like (not shown). It is attached to the base casing 11 via

  The front panel member 14 is formed with a clothing opening 20 that is opened in a circular shape, and a circular opening / closing door 30 that can be opened and closed via a hinge mechanism and an opening / closing locking mechanism (not shown) so as to cover the clothing insertion opening 20. It is attached.

  The open / close door 30 includes a ring-shaped front frame 31, a rear frame (not shown) attached so as to cover the back surface of the front frame 31, and a transparent window 32 held between the front frame 31 and the rear frame. Then, the transparent window 32 is formed so as to protrude greatly inward so as to be fitted into the clothing insertion opening 20 (see FIG. 2). The open / close door 30 includes a handle 33 formed so as to be continuous with the ring-shaped front frame 31.

  The panel member 15 is divided into left and right as viewed from the front, and the left side of the front is a detergent case 16 and the right side of the front is an operation panel 17.

  The detergent case 16 is provided so as to be openable and closable with respect to the housing 10 and includes a detergent inlet 16a.

  Next, with reference to FIG. 2, a schematic internal configuration of the electric washing machine according to the first embodiment of the present invention will be described.

  In FIG. 2, the electric washing machine 1 includes a drum tub 100, a rotating mechanism 110, a drain valve 120, a water supply channel 130, a drain channel 140, a drain port 150, and a protrusion 200 (hereinafter referred to as a lifter). And a control unit (not shown) for comprehensively controlling the electric washing machine 1.

  The drum tank 100 includes an outer tank 101 and an inner tank 102, and is configured such that the inner tank 102 is rotated by a rotation mechanism 110. Further, washing water or rinsing water is stored between the outer tub 101 and the inner tub 102.

  Next, the configuration of the inner tank will be described with reference to FIG. In FIG. 3, the inner tank 102 is constituted by a body plate 103, a bottom plate 104, and a frame body 105.

  Inside the inner tank 102, a plurality of lifters 200 are provided, the depth direction of which is the longitudinal direction, and the surfaces positioned in the longitudinal direction are the left and right side surfaces. The lifter 200 lifts the clothes upward as the inner tub 102 rotates. In the present embodiment, three lifters 200 are provided at equal intervals.

  The body plate 103 includes a pattern 109 including a plurality of protrusions 107 and small holes 108 formed around the protrusions 107. In the cleaning process, the protrusion 107 is used to come into contact with clothes as the inner tub 102 rotates and to remove dirt. The small holes 108 are used for taking in water in the cleaning process and the rinsing process, discharging water in the dehydration process, and the like.

  Next, the operation of the electric washing machine 1 will be described with reference to FIGS. 1 to 3. The washing process of the electric washing machine 1 mainly includes three processes of washing, rinsing and dehydration. Hereinafter, the operation in the cleaning process will be described as an example.

  First, the handle 33 is operated to open the opening / closing door 30, and the laundry is put into the inner tub 102 from the clothing insertion opening 20 to close the opening / closing door. After closing the open / close door 30 and operating the operation panel 17 to select the power-on and washing course, the control unit automatically determines the amount of clothing and determines the amount of water supply, amount of detergent, washing time, etc. To do.

  When the water supply amount is determined, the control unit controls to open the water supply valve (not shown) and start the supply of water, and starts the supply of water through the supply water channel 130. The supplied water is mixed with the detergent introduced from the detergent introduction port 16 a to generate washing water, and this washing water is stored between the outer tub 101 and the inner tub 102.

  When the amount of water supply reaches the determined amount, the control unit controls to close the water supply valve to stop the supply of water and to control the inner tank 102 to rotate. Then, along with the rotation of the inner tub 102, washing water collected between the outer tub 101 and the inner tub 102 is supplied into the inner tub 102 from the small hole 108, and the laundry is lifted upward by the lifter 200, The laundry is washed (washing process) by dropping the raised laundry downward.

  When the washing of the laundry is finished, the control unit controls to open the drain valve to drain the washing water, and the washing water collected in the lower portion 102a of the inner tub 102 in the washing process is discharged through the drain water channel 140 to the drain outlet. Drained from 150. In addition, also when washing water accumulates in the lower part 102a of the inner tub 102 in the middle of the cleaning process, drainage is performed in the same manner.

  One of the major features of the electric washing machine 1 according to this embodiment is the configuration of the lifter. The structure of this characteristic lifter will be described with reference to FIGS.

  In FIG. 4, the lifter 200 includes a water supply unit 210 formed on the side surface 201 and a drainage unit 220 formed on the upper surface 202, and has a substantially trapezoidal appearance as a whole.

  As shown in FIG. 4B, the side surface 201 (the left side surface 201a and the right side surface 201b) is formed with a two-step strip-shaped groove 211, and a plurality of water supply holes formed in the strip-shaped groove 211. 212 (see FIG. 4A) constitutes a water supply unit 210 (left water supply unit 210a and right water supply unit 210b).

  The upper surface 202 is provided with a drainage section 220 composed of a plurality of small holes. The drainage part 220 is composed of two small hole rows 221 (left rotation drainage part 221a and right rotation drainage hole 221b) arranged along the longitudinal direction of the lifter 200, and the left rotation drainage part 221a. The right rotation drain holes 221b are arranged so that their positions are staggered.

  The interior of the lifter 200 is formed in a hollow shape, and includes a partition plate 230 that divides the hollow interior into two chambers, and the partition plate 230 partitions the left rotation drainage portion 221a and the right rotation drainage portion 221b. Are arranged as follows.

  That is, the lifter according to the embodiment is characterized in that a water supply portion 210 including a groove portion 211 and a plurality of water supply holes 212 formed in the groove portion 211 is provided on the left side surface 201 a and the right side surface 201 b of the lifter 200. .

  With such a configuration, when washing water or rinsing water is supplied to the inside of the lifter 200 through the water supply unit 210 with the rotation of the inner tub 102, water also accumulates in the groove portion 211. In addition to the water directly supplied to the inside of the lifter 200 from the water, the water accumulated in the groove portion 211 is also supplied to the inside of the lifter 200 through the water supply hole 212, so that only the water supply hole is formed on the side surface of the lifter 200. Compared with the electric washing machine, water supply efficiency can be improved.

  Furthermore, since the water supply unit 210 is provided on the left side surface 201a and the right side surface 201b, the water supply efficiency can be improved in both the left direction (clockwise) and the right direction (counterclockwise).

  Another major feature of the electric washing machine 1 according to this embodiment is that the drainage portion 220 formed on the upper surface 202 of the lifter 200 is divided into a drainage portion for left rotation 221a and a drainage portion for right rotation 221b. The shape of the partition plate 230 is formed such that the left rotation drainage portion 221a and the right rotation drainage portion 221b are alternately arranged, and the left rotation drainage portion 221a and the right rotation drainage portion 221b are partitioned. In a configuration having a waveform.

  By adopting such a configuration, as shown in FIG. 5, the periphery of the small holes constituting the left rotation drainage unit 221a and the right rotation drainage unit 221b is surrounded in a semicircular shape. The washed water hits the partition plate 230 and is guided to the small hole as indicated by the arrow A. For this reason, as the amount of water drained from the lifter 200 increases, it is drained in a shower-like manner from the top to the bottom, and the drained washing water wets the laundry, that is, the laundry is tapped. Since it will be in such a state, the wash water drained from the lifter 200 can be utilized at a washing | cleaning process.

  Next, with reference to FIG. 6 and FIG. 7, the water supply operation | movement to the inside of a lifter and the drainage operation | movement from the inside of a lifter are demonstrated.

  6A, the washing water stored between the inner tub 102 and the outer tub 101 (see FIG. 2) is supplied to the inside of the inner tub through a small hole 108 formed in the body plate 103. The The supplied wash water gradually accumulates on the inner bottom surface of the inner tub, and as shown in a predetermined water level, for example, the left and right side surfaces of the lifter 200 as shown in FIG. When the water level reaches the level at which the water supply unit 210b and the right water supply unit 210b are hidden, the two chambers (first water storage chamber) partitioned by the partition plate 230, that is, the interior of the lifter 200 through the left water supply unit 210a and the right water supply unit 210b 240 and the second water storage chamber 250) are supplied with washing water from the direction of the white arrow.

  When the inner tub 102 is rotated in the direction of arrow B (rightward / counterclockwise) in a state where the wash water is supplied to the first water storage chamber 240 and the second water storage chamber 250, as shown in FIG. 6C. Since the lifter 200 is lifted upward, a part of the washing water supplied to the first water storage chamber 240 is drained in the direction of the white arrow through the left side water supply part 210a.

  At the same time, the wash water supplied to the second water storage chamber 250 moves in the direction of the partition plate 230 disposed in the center of the interior of the lifter 200 as shown in FIG.

  When the inner tub 102 is further rotated in the direction of arrow B from the state of FIG. 6C, the wash water stored in the first water storage chamber 240 passes through the left water supply section 210a as shown in FIG. 7A. Then, the water is drained in the direction of the white arrow, and the remaining amount is further reduced.

  When the inner tub 102 is further rotated in the direction of arrow B from this state, as shown in FIG. 7B, the first storage chamber 240 drains all of the supplied wash water through the left water supply unit 210a. The first water storage chamber 240 becomes empty. At the same time, the wash water stored in the second water storage chamber 250 partially passes through the drainage portion 221 (the right-turning drainage portion 221b) formed on the upper surface 202 of the lifter 200, that is, in the inner arrow direction. It will be in the state discharged | emitted toward the inside of the tank 102. FIG.

  From this state, when the inner tub 102 is further rotated in the direction of arrow B, as shown in FIG. 7C, the washing water stored in the second water storage chamber 250 is drained substantially vertically from above to below. That is, it is drained in the shape of a shower in the direction of a white arrow, and the drained washing water wets the clothes so as to strike the clothes thrown into the inner tub 102.

  As described above, according to the present embodiment, in addition to the process of wetting normal clothing, the washing water can be supplied from the upper surface 202 of the lifter 200 toward the clothing as the inner tub 102 rotates. You can wet your clothes evenly over time. In particular, in the present embodiment, the washing water discharged from the upper surface 202 of the lifter 200 hits the clothes almost vertically, so that the effect of tapping in the washing process can be obtained.

  In addition, although the water supply operation | movement and drainage operation | movement of washing water were demonstrated in the said embodiment, it becomes the same operation | movement also with the water supply operation | movement and drainage operation | movement of rinse water. In particular, in the draining operation of the rinsing water, the clothes can be evenly wet in a short time as in the draining operation of the washing water, so that the rinsing process can be performed with a small amount of water.

  Moreover, although the said embodiment demonstrated the state which rotated the inner tank 102 in the arrow B direction (right direction / counterclockwise), it is the same also in the state rotated in the arrow C direction (left direction / clockwise). An effect can be obtained.

(Second Embodiment)
Next, a second embodiment of the electric washing machine according to the present invention will be described with reference to FIG. 8A and 8B are external views of the lifter according to the second embodiment, in which FIG. 8A is a plan view and FIG. 8B is a rear view.

  The electric washing machine according to the second embodiment is different from the first embodiment described above only in the configuration of the lifter, and the configuration and operation of other parts are the same as those of the first embodiment described above. It has the composition of. Hereinafter, the structure of the lifter according to the second embodiment will be described, and detailed description of the other parts will be omitted.

  In the lifter 200a according to this embodiment in FIG. 8, the shape of the drainage hole 260 formed on the upper surface 202 is changed to a track shape formed to the full width of the upper surface 202, and the drainage hole 206 having the track shape is divided into right and left. Thus, the structure which provided the partition plate 230a in the back surface of the lifter 200a is characterized.

  By setting it as such a structure, the effect similar to 1st Embodiment mentioned above can be acquired.

  Although not shown in the lifter 200a, as in the first embodiment described above, the left and right side surfaces of the lifter 200a include a belt-like groove 211 and a plurality of water supply holes 212 formed in the groove 211. The water supply part 210 (the left side water supply part 210a, the right side water supply part 210b) is provided.

(Third embodiment)
Next, a third embodiment of the electric washing machine according to the present invention will be described with reference to FIG. FIG. 9 is an external view of a lifter according to the third embodiment, in which FIG. 9A is a plan view and FIG. 9B is a rear view.

  The electric washing machine according to the third embodiment is different from the first embodiment described above only in the configuration of the lifter, and the configuration and operation of other parts are the same as those of the first embodiment described above. It has the composition of. Hereinafter, the structure of the lifter according to the third embodiment will be described, and detailed description of other parts will be omitted.

  In FIG. 9, the lifter 200b according to this embodiment is arranged so that two rows of drainage portions (left rotation drainage portion 221a and right rotation drainage portion 221b) formed on the upper surface 202 are adjacent to each other. A feature is that the partition plate 230a is provided on the back surface of the lifter 200 so as to partition the drainage portion 221a for right rotation and the drainage portion 221b for right rotation to the left and right.

  By setting it as such a structure, the effect similar to 1st Embodiment mentioned above can be acquired.

  Although not shown in the lifter 200b, as in the first embodiment described above, the left and right side surfaces of the lifter 200b include a belt-like groove 211 and a plurality of water supply holes 212 formed in the groove 211. The water supply part 210 (the left side water supply part 210a, the right side water supply part 210b) is provided.

(Fourth embodiment)
Next, a fourth embodiment of the electric washing machine according to the present invention will be described with reference to FIG. 10A and 10B are external views of a lifter according to the fourth embodiment, in which FIG. 10A is a perspective view and FIG. 10B is a cross-sectional view.

  The electric washing machine according to the fourth embodiment is different from the first embodiment described above only in the configuration of the lifter, and the configuration and operation of other parts are the same as those of the first embodiment described above. It has the composition of. Hereinafter, the structure of the lifter according to the fourth embodiment will be described, and detailed description of the other parts will be omitted.

  In FIG. 10, the lifter 200 c according to this embodiment is characterized in that a strip-like groove portion 211 is formed on each of the left and right side surfaces, and a water supply hole 212 is disposed in each groove portion 211.

  By setting it as such a structure, since many water supply holes can be formed in the right-and-left side surface of a lifter, water supply efficiency can be improved more.

  In addition, since each part structure and operation | movement other than the structure of the left-right side surface of the lifter 200c are the same as 1st Embodiment mentioned above, detailed description is abbreviate | omitted.

  DESCRIPTION OF SYMBOLS 1 ... Electric washing machine, 10 ... Housing, 11 ... Base housing, 12 ... Front cover, 13 ... Top plate, 14 ... Front panel member, 15 ... Panel member, 16 ... Detergent case, 16a ... Detergent inlet, 17 DESCRIPTION OF SYMBOLS Operation panel 20 ... Clothes input port 30 ... Open / close door, 31 ... Front frame, 32 ... Transparent window, 33 ... Handle, 100 ... Drum tank, 101 ... Outer tank, 102 ... Inner tank, 103 ... Trunk plate, 104 DESCRIPTION OF SYMBOLS ... Bottom plate, 105 ... Frame, 107 ... Protrusion, 108 ... Small hole, 109 ... Pattern, 110 ... Rotating mechanism, 120 ... Drain valve, 130 ... Feed water channel, 140 ... Drain channel, 150 ... Drain port, 200 ... Lifter, 200a ... Lifter (projection part), 201 ... Side face, 201a ... Left side face, 201b ... Right side face, 202 ... Upper face, 210 ... Water supply part, 210a ... Left water supply part, 210b ... Right water supply part, 211 ... Groove part, 212 ... Water supply , 220 ... Drainage part, 221 ... Small hole row, 221a ... Drainage part for left rotation, 221b ... Drainage hole for right rotation, 230 ... Partition plate, 230a ... Partition plate, 240 ... First reservoir, 250 ... Second reservoir .

Claims (4)

In a drum-type electric washing machine provided with a drum tub whose rotation axis is substantially horizontal in the housing, and a clothing input port for putting clothes in and out of the drum tub on the front surface of the housing,
The drum tub is provided with a protrusion inside for lifting the garment upward along with its rotation,
The protrusions are formed on the left and right side surfaces, and a water supply part that supplies water to the inside when the drum tank rotates, and a drainage part that is formed on the top surface and drains water from the inside when the drum tank rotates. And a partition plate that divides the interior into two chambers,
The water supply unit includes a strip-shaped groove formed on the left and right side surfaces of the protrusion, and a plurality of water supply holes formed in the groove,
The drainage part is composed of a plurality of small holes arranged on the upper surface of the protruding part, and two small hole rows arranged linearly along the longitudinal direction of the protruding part,
The small hole rows are arranged alternately,
The electric washing machine, wherein the partition plate is arranged to divide the small hole row arranged alternately into left and right. In the electric washing machine according to claim 1,
The said partition plate is formed in the waveform. The electric washing machine characterized by the above-mentioned. The electric washing machine according to claim 1 or 2,
The electric washer characterized by the fact that the small hole rows are arranged side by side. The electric washing machine according to claim 1 or 2,
The small hole is formed by a plurality of track-shaped small holes arranged on the upper surface of the protrusion,
The track-shaped small holes are arranged in a line along the longitudinal direction of the protrusion,
The partition plate is disposed so as to divide the track-shaped small holes arranged in one row into left and right.