JP2016067694A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of achieving improvement of detergency while preventing damage of laundry.SOLUTION: A washing machine 1 includes: a washing tub 4 for accommodating laundry S; a water pumping passage 20 for taking in water accumulated in the washing tub 4 from an inlet 25, pumping it by a flow passage 26 and discharging it into the washing tub 4 from an outlet 22; a closing member 27 for closing an upper end of the flow passage 26; and a fan 13 for feeding the water accumulated in the washing tub 4 to the inlet 25 by rotating. The outlet 22 is vertically long slit-shaped. The fan 13 is provided being separated from the laundry S at a bottom part 4D of the washing tub 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a washing machine.

  In the washing machine described in Patent Document 1 below, a washing blade is rotatably provided at the bottom of an inner tub for storing laundry, and an inner tub case and a passage case are provided inside the inner tub. When the washing blade rotates, the washing water is pumped up by passing through the water passage portion of the inner tub case and the water passage of the passage case, and then is discharged into the inner tub and bathed in the laundry. As a result, the laundry is washed.

  In the washing machine described in Patent Document 2 below, a pulsator is provided at the inner bottom of the washing / dehydrating tub, and a laundry placement net is provided in the middle of the height in the washing / dehydrating tub.

JP-A-8-309090 Japanese Patent Laid-Open No. 10-235076

  In the washing machine of Patent Literature 1, there may be a problem that the laundry is damaged by the rotating washing blade rubbing the laundry. In addition, there is a limit to improving the washing power of the laundry in a configuration in which the washing water drawn up is simply put on the laundry.

  In the washing machine of Patent Document 2, the laundry is isolated from the pulsator by being placed on the laundry placement net. Thereby, the problem that the laundry is damaged by the rotating pulsator rubbing the laundry is solved. However, since the area where the laundry can be received in the washing / dehydrating tank is only the area above the laundry placement net, the capacity of the washing / dehydrating tank is reduced. In this case, there is a possibility that the laundry cannot be sufficiently stirred in the washing and dewatering tank, and thus there is a limit to improving the washing power of the laundry.

  The present invention has been made under such a background, and an object thereof is to provide a washing machine capable of improving the cleaning power while preventing the laundry from being damaged.

  The present invention includes a washing tub for storing laundry and storing water, an inlet located at the bottom of the washing tub, a vertically long slit-shaped outlet located at a position higher than the inlet, and the outlet from the inlet And a pumping path for taking water accumulated in the washing tub from the inlet, pumping it up by the channel, and discharging it from the outlet into the washing tub, and provided in the pumping path. A closing member that closes the upper end of the flow path, and a fan that is provided separately from the laundry at the bottom of the washing tub and rotates to feed water accumulated in the washing tub to the inlet. This is a washing machine.

  In addition, the present invention includes a partition member provided at the bottom of the washing tub, and partitions the internal space of the washing tub into a first space in which laundry is disposed and a second space in which the fan is disposed. It is characterized by that.

  Further, the present invention is characterized in that the closing member is located at an upper end of the outlet.

  Further, according to the present invention, the washing tub has a cylindrical shape having a longitudinally extending axis, and in the pumping path, the outlet is shifted in the circumferential direction with respect to a center of the inlet in a circumferential direction of the washing tub. It is characterized by being arranged.

  Further, the present invention is characterized in that the outlet is arranged facing the circumferential direction.

  Further, the present invention is characterized in that the outlets are provided on both sides in the circumferential direction in the pumping channel.

  In the present invention, the outlet includes an inclined member that is provided on one side in the circumferential direction in the pumping channel, is inclined so as to approach the outlet, and narrows the flow path from the inlet toward the outlet. It is characterized by.

According to the present invention, the fan that feeds the water accumulated in the washing tub to the entrance of the pumping path is provided isolated from the laundry at the bottom of the washing tub. Therefore, even if the fan rotates to feed water, the laundry is not rubbed against the fan, so that the laundry can be prevented from being damaged.
In the pumping channel, the upper end of the flow path extending upward from the inlet to the outlet is closed by a closing member, and the outlet has a vertically long slit shape. Therefore, the water taken in from the inlet and pumped up by the flow path is discharged after the flow rate is increased by the vertically elongated outlet after the flow direction is changed by the closing member. As a result, the water discharged from the outlet is sprayed into a band extending vertically in a complicated direction and is poured into the laundry in the laundry tub, so that the laundry is washed while being stirred in various directions. The Therefore, the cleaning power can be improved.

  According to the present invention, the partition member partitions the internal space of the washing tub into the first space in which the laundry is disposed and the second space in which the fan is disposed, so that the fan can be reliably removed from the laundry. Can be isolated.

  Moreover, according to this invention, since the obstruction | occlusion member is located in the upper end of an exit, the direction through which the water pumped up by the flow path can be changed just before an exit. Thereby, the water discharged from the exit can be reliably jetted in a complicated direction.

  Moreover, according to this invention, an outlet is arrange | positioned in the circumferential direction with respect to the center of the inlet in the circumferential direction of a washing tub in a pumping path. Thereby, the flow of the water taken in from the inlet and pumped up by the flow path can be changed, and the pumped water can be jetted into the washing tub vigorously from the outlet. Therefore, the laundry which has been sprayed with the sprayed water can be effectively washed by sufficiently stirring.

  Moreover, according to this invention, since an exit is arrange | positioned facing the circumferential direction, it can be pumped up by a flow path and can discharge water in the circumferential direction from an exit. Thereby, it can wash | clean, stirring the laundry in a washing tub with the water discharged to the circumferential direction so that it may rotate to the circumferential direction.

  Further, according to the present invention, since the outlets are provided on both sides in the circumferential direction in the pumping channel, the outlets are discharged from the outlets at the outlets on the both sides and the other outlet according to the rotation direction of the washing tub. You can change the direction of the water. As a result, in the pumping channel, water discharged from each outlet can be directed to the laundry in the washing tub in a complicated direction, so it is effective by sufficiently stirring the laundry in various directions. Can be washed.

Further, according to the present invention, since the outlet is provided on one side in the circumferential direction in the pumping channel, when a plurality of pumping channels are arranged side by side in the circumferential direction, the water discharged from the outlet of the adjacent pumping channel Can be prevented from colliding and losing momentum.
The flow path of the pumping channel is narrowed from the inlet toward the outlet by the inclined member. Thereby, the flow rate of the water taken in from the inlet and pumped up by the flow path can be increased toward the outlet. Therefore, the pumped water can be jetted more vigorously from the outlet into the washing tub. Therefore, it can wash | clean effectively by fully stirring the laundry which bathed in the injected water.

FIG. 1 is a longitudinal sectional view of the internal structure of a washing machine according to an embodiment of the present invention. FIG. 2 is a perspective view of a fan included in the washing machine as viewed from above. FIG. 3 is a perspective view of the fan as viewed from below. 4 is a cross-sectional view taken along arrow AA in FIG. FIG. 5 is a perspective view of the bottom of the washing tub and the pumping channel in the washing machine as viewed from above. FIG. 6 is a perspective view of the bottom of the washing tub and the pumping channel as seen from above from a different viewpoint from FIG. 5. 7 is a cross-sectional view taken along line BB in FIG. FIG. 8 is a longitudinal sectional view of the internal structure of the washing machine according to the first modification of the present invention. 9 is a cross-sectional view taken along the line CC in FIG. 10 is a cross-sectional view taken along line DD in FIG. FIG. 11 is a longitudinal sectional view of the internal structure of the washing machine according to the second modification of the present invention.

Embodiments of the present invention will be specifically described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view of the internal structure of a washing machine 1 according to an embodiment of the present invention.

  First, the outline | summary of the washing machine 1 is demonstrated on the basis of the up-down direction X in FIG. Of the vertical direction X that is the vertical direction, the upper part is referred to as an upper part X1, and the lower part is referred to as a lower part X2. The washing machine 1 also includes a washing / drying machine having a function of drying the laundry S.

The washing machine 1 includes a housing 2, an outer tub 3, a washing tub 4, and a motor 5.
The housing 2 is formed in a box shape. The outer tub 3, the washing tub 4 and the motor 5 are disposed in the housing 2.

  The outer tub 3 is made of, for example, resin and is formed in a bottomed cylindrical shape. The outer tub 3 has a substantially cylindrical circumferential wall 3B having an opening 3A at the upper end, and a disc-shaped bottom wall 3C that closes a hollow portion of the circumferential wall 3B from below X2. The opening 3A is opened and closed by a cover 6 connected to the circumferential wall 3B. In the outer tub 3, water such as tap water, bath water, and a liquid in which detergent is dissolved is stored.

  The washing tub 4 is formed in a bottomed cylindrical shape that is slightly smaller than the outer tub 3 and accommodates the laundry S. The washing tub 4 has a substantially cylindrical circumferential wall 4B having an entrance 4A at the upper end, and a disc-shaped bottom wall 4C that closes a hollow portion of the circumferential wall 4B from below X2. For example, the circumferential wall 4B is made of metal, and in the bottom wall 4C, the circle center portion is made of metal and the outer circumference portion is made of resin. The bottom wall 4C and the lower end connected to the bottom wall 4C in the circumferential wall 4B constitute a bottom 4D of the washing tub 4. The washing tub 4 is accommodated coaxially in the outer tub 3. The washing tub 4 in a state accommodated in the outer tub 3 is rotatable around a central axis 7 extending in the vertical direction X as its axis. Such a washing machine 1 is a vertical washing machine in which the washing tub 4 is arranged vertically.

  The entrance / exit 4A communicates with the opening 3A from below X2, and the opening 3A and the entrance / exit 4A are collectively opened and closed by the cover 6. The user of the washing machine 1 can put the laundry S into and out of the laundry tub 4 through the opened doorway 4A. A through hole 4E is formed in each of the circumferential wall 4B and the bottom wall 4C, and water in the outer tub 3 can go back and forth between the outer tub 3 and the washing tub 4 through the through hole 4E. Thereby, water is stored in the washing tub 4 so that the water level is the same as that of the outer tub 3.

  An annular balancer 8 is attached to the upper end portion of the inner peripheral surface 4F of the circumferential wall 4B. The balancer 8 is for reducing vibration of the washing tub 4 during rotation, and a liquid for contributing to vibration reduction is accommodated in the cavity 8A inside the balancer 8.

  A concave portion 4G that is recessed downward is formed on the upper surface of the bottom wall 4C. The recess 4G is a cylindrical space that is coaxial with the bottom wall 4C and is flat vertically. The washing tub 4 includes a partition member 9 provided on the bottom 4D. The partition member 9 is a disc-shaped lid that closes the concave portion 4G from above, and a plurality of through holes 9A are formed together on the center side of the circle. The partition member 9 partitions the internal space 10 of the washing tub 4 into a first space 11 that communicates with the entrance 4A and in which the laundry S is disposed, and a second space 12 that corresponds to the recess 4G.

  The motor 5 is disposed below the bottom wall 3 </ b> C of the outer tub 3 in the housing 2. The output shaft of the motor 5 branches into a tubular first output shaft 5A extending upward X1 and a second output shaft 5B inserted with play with respect to the first output shaft 5A. The motor 5 can selectively output a driving force from either the first output shaft 5A or the second output shaft 5B via the speed change mechanism 15.

  The first output shaft 5A extends upward X1 and passes through the circle center of the bottom wall 3C and the circle center of the bottom wall 4C of the washing tub 4 in order. The first output shaft 5A has a flange portion 5C projecting like a bowl between the bottom wall 3C and the bottom wall 4C, and the flange portion 5C is fixed to the bottom wall 4C so as to be connected to the washing tub 4. The When the motor 5 is driven and driving force is transmitted to the first output shaft 5A, the washing tub 4 rotates.

A fan 13 is attached to an upper end portion of the second output shaft 5B that protrudes upward X1 from the flange portion 5C.
FIG. 2 is a perspective view of the fan 13 as viewed from above X1, and FIG. 3 is a perspective view of the fan 13 as viewed from below X2.

  Referring to FIGS. 2 and 3, fan 13 is provided between a pair of disks 13A arranged in parallel vertically so as to be coaxial, and a circle of disk 13A laid between a pair of disks 13A. A plurality of blades 13B extending radially from the center is integrally included. Of the pair of disks 13A, the upper X2 disk 13A is formed with one circular through hole 13C penetrating the center part of the circle (see FIG. 2), and the lower X2 disk 13A includes A plurality of circular through-holes 13D surrounding the center portion of the circle are formed (see FIG. 3). Each blade 13B extends linearly from the edge of the through hole 13C toward the outer peripheral edge of the disk 13A.

  With reference to FIG. 1, the fan 13 is arrange | positioned in the 2nd space 12 (4 G of recessed parts of the bottom wall 4C mentioned above) of bottom part 4D of the washing tub 4. As shown in FIG. Since the second space 12 is in a state of being blocked from the first space 11 in the upper X1 where the laundry S is disposed by the partition member 9, the fan 13 is provided isolated from the laundry S at the bottom 4D. . The water accumulated in the washing tub 4 also exists between the pair of disks 13A via the through holes 9A of the partition member 9 and the through holes 13C and 13D of the pair of disks 13A of the fan 13.

  The upper end portion of the second output shaft 5B of the motor 5 is attached to the circle center portion of the lower X2 disk 13A. When the motor 5 is driven and driving force is transmitted to the second output shaft 5B, the fan 13 rotates. When the fan 13 rotates, the washing tub 4 is in a stopped state.

  4 is a cross-sectional view taken along arrow AA in FIG. In FIG. 4, the illustration of the partition member 9 described above is omitted for convenience of explanation. With reference to FIG. 4, hereinafter, the circumferential direction of the inner peripheral surface 4F of the washing tub 4 is referred to as a circumferential direction Y, and the radial direction of the inner peripheral surface 4F is referred to as a radial direction Z. The circumferential direction Y and the radial direction Z are both directions along the horizontal direction H. Of the circumferential direction Y, the clockwise direction in plan view is referred to as clockwise Y1, and the counterclockwise direction in plan view is referred to as counterclockwise Y2. Of the radial direction Z, the side toward the central axis 7 is referred to as a radial inner side Z1, and the side away from the central axis 7 is referred to as a radial outer side Z2.

  A pumping path 20 is attached to the inner peripheral surface 4 </ b> F of the washing tub 4. The number of pumping paths 20 can be set arbitrarily, and may be singular or plural. In this embodiment, the pumping path 20 is attached to the inner peripheral surface 4F in a state where three of the same shape and the same size are aligned in the circumferential direction Y. In FIG. 4, only one pumping channel 20 is shown for convenience of explanation. The interval between the pumping paths 20 adjacent to each other in the circumferential direction Y may be constant between the pumping paths 20 or may be different depending on the pumping paths 20. Below, the detail of the pumping-up path 20 is demonstrated on the basis of the attitude | position in the state attached to the washing tub 4. FIG.

  The pumping path 20 includes a main body 21 made of resin. The main body portion 21 has a cover shape that is long in the vertical direction X, is laid between the balancer 8 and the bottom wall 4C of the washing tub 4, and has a diameter along the inner peripheral surface 4F of the washing tub 4 in a posture along the vertical direction. It is attached from the direction inner side Z1 (see also FIG. 1). Therefore, the main body 21 has a back surface 21A that faces the inner peripheral surface 4F of the washing tub 4, and a front surface 21B that faces the central axis 7 on the side opposite to the back surface 21A.

  5 and 6 are perspective views of the bottom 4D of the washing tub 4 and the pumping path 20 as viewed from above X1 from another viewpoint. With reference to FIGS. 5 and 6, both end portions in the circumferential direction Y of the main body portion 21 constitute a bent portion 21 </ b> C that is bent toward the radially outer side Z <b> 2 over almost the entire area in the vertical direction X. Each bent portion 21C is formed to be inclined with respect to each of the circumferential direction Y and the radial direction Z, and the surface 21B of each bent portion 21C is in a state facing the circumferential direction Y. Moreover, in the main-body part 21, upper end part 21D is bend | folded to radial direction outer side Z2, and is constructed between the bending parts 21C of both sides.

  Each of the bent portions 21C is formed with a vertically long slit-shaped outlet 22. That is, the outlets 22 are provided on both sides in the circumferential direction Y in the pumping path 20. For example, two outlets 22 are provided side by side in the vertical direction X in each bent portion 21C, and penetrate the bent portion 21C so as to be exposed from both the back surface 21A and the front surface 21B of the main body portion 21. Each outlet 22 is arranged facing the circumferential direction Y on the surface 21B of the bent portion 21C (see also FIG. 4).

  In each bent portion 21C, it extends radially inward Z1 between the outlets 22 adjacent to each other in the vertical direction, the upper X1 of the outlet 22 located in the upper X1, and the lower X2 of the outlet 22 located in the lower X2. The boss 23 is provided integrally. The boss 23 protrudes from the surface 21B of the main body portion 21 toward the radially inner side Z1. As shown in FIG. 6, a screw hole 23 </ b> A is formed on the end face of the boss 23 on the radially outer side Z <b> 2. The screw hole 23 </ b> A is also formed in the upper end portion 21 </ b> D of the main body portion 21. A screw (not shown) inserted from the radially outer side Z <b> 2 of the washing tub 4 is assembled to the screw hole 23 </ b> A in order to fix the pumping path 20 to the washing tub 4.

  On the back surface 21 </ b> A of each bent portion 21 </ b> C, the screw hole 23 </ b> A is disposed outside the outlet 22 in the circumferential direction Y. On the both sides in the circumferential direction Y on the back surface 21A of the main body 21, one rib 21E is provided that extends linearly along the vertical direction X while projecting radially outward Z2. The rib 21E has a thin plate shape in the circumferential direction Y, and extends from the upper end 21D to the lower X2 between the screw hole 23A and the outlet 22 in the circumferential direction Y at each bent portion 21C. The rib 21E is disposed adjacent to the outlet 22 so as to edge the outlet 22 from the outside in the circumferential direction Y.

  7 is a cross-sectional view taken along line BB in FIG. Referring to FIG. 7, an inlet member 24 is integrally provided at the lower end portion of the back surface 21 </ b> A of the main body portion 21. The inlet member 24 is formed in a plate shape bent in a substantially U shape that bulges toward the radially outer side Z2 in plan view (see FIG. 4). The width of the inlet member 24 in the circumferential direction Y is gradually narrower toward the upper X1. The lower portion 24 </ b> A of the inlet member 24 is disposed so as to protrude below the lower end of the main body portion 21. A region sandwiched by the substantially U-shaped lower portion 24 </ b> A is the inlet 25 of the pumping channel 20. The inlet 25 is at a position lower than the outlet 22 in the pumping channel 20. Further, in each pumping path 20, all the outlets 22 are arranged so as to be shifted in the circumferential direction Y with respect to the center 25 </ b> A of the inlet 25 in the circumferential direction Y.

  On the bottom wall 4C of the washing tub 4, the same number of depressions 4H that are recessed from the second space 12 in which the fan 13 is disposed to the radially outer side Z2 are formed as the pumping path 20 (see also FIG. 5). The inlet member 24 of any pumping channel 20 is received. Therefore, in a state where the pumping path 20 is attached to the washing tub 4, the inlet 25 is located at the bottom 4D of the washing tub 4, and is in a state communicating with the second space 12 from the radially outer side Z2 (FIG. 5). reference).

  A flow path 26 is provided on the back surface 21 </ b> A of the main body 21. The flow path 26 is a vertically long space sandwiched from the circumferential direction Y by the ribs 21E on both sides in the circumferential direction Y on the back surface 21A (see also FIG. 6), and radially outward by the inner circumferential surface 4F of the washing tub 4. Blocked from Z2. The lower end portion of the flow path 26 is sandwiched from the radial direction Z by the back surface 21 </ b> A of the main body portion 21 and the inlet member 24. The channel 26 extends upward X1 from the inlet 25 to the outlet 22 so as to communicate with the inlet 25 at the lower end and communicate with the outlet 22 at the upper end.

  A closing member 27 is integrally provided on the upper surface of the rear surface 21A of the main body 21 (see also FIG. 6). The closing member 27 is formed in a plate shape that is thin in the vertical direction X and extends in the horizontal direction H, and is installed between the ribs 21 </ b> E on both sides of the main body 21. The closing member 27 is positioned at the upper end of the uppermost outlet 22 in each bent portion 21C. The lower surface 27A of the blocking member 27 is flat in the horizontal direction H, and the upper end of the flow path 26 is closed from the upper side X1 by the lower surface 27A. Therefore, the upper end of the flow path 26 is the end.

  Referring to FIG. 1, when the fan 13 rotates, the water accumulated in the bottom 4D of the washing tub 4 is sent to the inlet 25 of each pumping path 20 by the blades 13B of the fan 13 and enters the flow path 26 from the inlet 25. It is captured. The water taken into the flow path 26 is pumped up to the outlet 22 of the upper X1 by the flow path 26 as shown by the thick arrow, and then discharged from the respective outlets 22 into the washing tub 4.

  As described above, in the pumping channel 20, the upper end of the flow path 26 extending upward X1 from the inlet 25 to the outlet 22 is closed by the closing member 27 as shown in FIG. It is. Therefore, the water taken in from the inlet 25 and pumped up by the flow path 26 is discharged after the flow rate is increased by the vertically elongated outlet 22 after the flow direction is changed by the closing member 27.

  Of the outlets 22 on both sides of the pumping channel 20 in the circumferential direction Y as viewed from the rotational direction of the fan 13, the downstream outlet 22 is referred to as a downstream outlet 22A, and the upstream outlet 22 is referred to as an upstream outlet 22B. In the following, the phenomenon in which water is discharged from the outlet 22 will be specifically described. In FIG. 7, the right outlet 22 is regarded as a downstream outlet 22A, and the left outlet 22 is regarded as an upstream outlet 22B.

  When the fan 13 rotates clockwise Y1, the water pumped up in the flow path 26 of the pumping channel 20 rises while flowing clockwise Y1. The water that has reached the downstream outlet 22A before reaching the closing member 27 is vigorously discharged from the downstream outlet 22A clockwise Y1 and obliquely upward (thick) with the flow velocity increased by the downstream outlet 22A. (See solid arrow).

  On the other hand, the water that collides with the closing member 27 is bounced counterclockwise Y2 and obliquely downward by the closing member 27, and then reaches the upstream outlet 22B. Since the blocking member 27 is located at the upper end of the outlet 22 as described above, the direction in which the water pumped up by the flow path 26 flows can be changed immediately before the upstream outlet 22B. The water that has reached the upstream outlet 22B is vigorously discharged counterclockwise Y2 and obliquely downward from the upstream outlet 22B in a state where the flow velocity is increased by the upstream outlet 22B (see the thick broken line arrow).

  In addition, when the fan 13 rotates counterclockwise Y2, the reverse phenomenon occurs when the fan 13 rotates clockwise Y1. That is, the positions of the downstream outlet 22A and the upstream outlet 22B in the circumferential direction Y are reversed, and the water pumped up in the flow path 26 is vigorously discharged counterclockwise Y2 and obliquely upward from the downstream outlet 22A. Then, it is discharged from the upstream outlet 22B vigorously clockwise Y1 and obliquely downward (not shown).

  As described above, in the pumping channels 20 in which the outlets 22 are provided on both sides in the circumferential direction Y, depending on the rotation direction of the washing tub 4, the outlets 22 on the outlets 22 on the both sides and the other outlets 22 The direction of the water discharged from 22 can be changed. Therefore, the water discharged from the respective outlets 22 is sprayed in a band extending vertically in a complicated direction and is poured into the laundry S in the washing tub 4 vigorously. The laundry S is washed while being agitated in various directions by the flow. Therefore, the cleaning power can be improved. Incidentally, the vertically long outlet 22 can complicate the flow of water discharged from the outlet 22 as compared to the case of being horizontally long.

  As described above, in each pumping channel 20, the outlet 22 is arranged so as to be shifted in the circumferential direction Y with respect to the center 25 </ b> A of the inlet 25. Thereby, the flow of the water taken in from the inlet 25 and pumped up by the flow path 26 can be changed, and the pumped water can be jetted into the washing tub 4 vigorously from the outlet 22. Therefore, the laundry S bathed with the sprayed water can be effectively washed by sufficiently stirring.

  Since all the outlets 22 are arranged in the circumferential direction Y, the water pumped up by the flow path 26 can be discharged from the outlet 22 in the circumferential direction Y. Thereby, the laundry S in the washing tub 4 can be washed with stirring so as to rotate in the circumferential direction Y by the water discharged in the circumferential direction Y.

  As described above, in the washing machine 1, the fan 13 is provided separately from the laundry S at the bottom 4D of the washing tub 4, as shown in FIG. In particular, the partition member 9 partitions the internal space 10 of the washing tub 4 into a first space 11 in which the laundry S is disposed and a second space 12 in which the fan 13 is disposed. Securely isolated from For this reason, even if the fan 13 rotates to feed water, the laundry S is not rubbed against the fan 13, so that the laundry S can be prevented from being damaged.

  Further, in the configuration in which the fan 13 is isolated from the laundry S by the partition member 9, the fan 13 can be rotated at a high speed, so that the water pumped up in the flow path 26 of the pumping path 20 is strengthened, The laundry S can be sufficiently agitated by spraying into the washing tub 4 more vigorously from the outlet 22. Furthermore, since the second space 12 is a recessed portion 4G that is narrow in the vertical direction formed in the bottom wall 4C of the washing tub 4, the first space 11 (the capacity of the laundry S) in the upper X1 can be secured as much as possible.

  As described above, the washing machine 1 is not a conventional pulsator, but uses a powerful and complicated flow of water discharged from the pumping path 20 with a simple structure, so that the laundry S is not rubbed and damaged. Move actively to clean. Thereby, the laundry S can be effectively washed while preventing the laundry S from being damaged. Moreover, since the water in the washing tub 4 is repeatedly used for washing by circulating through the flow path 26 of the pumping path 20, washing with less water becomes possible.

The present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the claims.
FIG. 8 is a longitudinal sectional view of the internal structure of the washing machine according to the first modification of the present invention. In FIG. 8, illustration of the partition member 9 mentioned above is abbreviate | omitted for convenience of explanation. 9 is a cross-sectional view taken along the line CC in FIG. 10 is a cross-sectional view taken along line DD in FIG.

  For example, in the above-described embodiment, the outlets 22 are provided on both sides in the circumferential direction Y in each pumping path 20, but the outlets 22 are arranged in the circumferential direction Y as in the first modification shown in FIGS. It may be provided only on one side. In this case, the bent portion 21C on the side where the outlet 22 is omitted in the main body portion 21 of the pumping path 20 has an inclined member 40 that is inclined with respect to the vertical direction X so as to approach the outlet 22 when viewed from the radially inner side Z1. Configure.

  Since the outlets 22 are provided on one side in the circumferential direction Y in each pumping path 20, when the plurality of pumping paths 20 are arranged in the circumferential direction Y, the outlets 22 are discharged from the outlets 22 of the adjacent pumping paths 20. It can prevent water from colliding and losing momentum. Of course, in this case, the outlet 22 needs to be provided on the same side in each pumping path 20.

  As shown in FIG. 10, the flow path 26 of the pumping channel 20 is narrowed by the inclined member 40 from the inlet 25 toward the outlet 22. Thereby, the flow rate of the water taken in from the inlet 25 and pumped up by the flow path 26 can be increased toward the outlet 22. Therefore, the pumped water can be jetted more vigorously into the washing tub 4 from the outlet 22. Therefore, it can wash effectively by fully stirring laundry S bathed in the jetted water.

  Specifically, in FIG. 10, when the fan 13 rotates counterclockwise Y <b> 2 and the outlet 22 is the downstream outlet 22 </ b> A described above, the water pumped up by the flow path 26 hits the closing member 27. Before, it is discharged vigorously counterclockwise Y2 and obliquely upward from the downstream outlet 22A (see thick solid arrow). On the other hand, when the outlet 22 shown in FIG. 10 is the upstream outlet 22B described above, the water pumped up by the flow path 26 hits the blocking member 27, thereby counterclockwise Y2 from the upstream outlet 22B. It is ejected vigorously downward (see thick broken line arrow).

FIG. 11 is a longitudinal sectional view of the internal structure of the washing machine according to the second modification of the present invention. When the outlet 22 is provided on one side of the pumping path 20 as in the first modification, the partition member 9 may be omitted and a normal pulsator 45 may be provided instead of the fan 13 as shown in FIG. In this case, a back blade 45A corresponding to the blade 13B of the fan 13 is provided on the lower surface of the pulsator 45, and when the pulsator 45 rotates, the back blade 45A sends water accumulated in the washing tub 4 to the inlet 25 of the pumping channel 20. .

  Since the pulsator 45 contacts the laundry S in the washing tub 4, it is desirable that the pulsator 45 be rotated at a lower speed than the fan 13 so as not to damage the laundry S. In this case, the laundry S is gently agitated by the pulsator 45 that rotates at a low speed, and is also agitated by the momentum of the water discharged from the pumping path 20 (see the thick solid line). Thereby, the laundry S can be more effectively washed while preventing the laundry S from being damaged by the pulsator 45. Of course, the outlets 22 may be provided on both sides of the pumping path 20 as shown in FIG.

  The main body 21 of the pumping channel 20 has a cover shape, and the flow path 26 is partitioned into a rear surface 21A of the main body 21 and a pair of ribs 21E on the rear surface 21A and an inner peripheral surface 4F of the washing tub 4. It is space. That is, the flow path 26 is strictly configured by cooperation between the pumping path 20 and the inner peripheral surface 4F of the washing tub 4. Instead of this, the main body 21 may be a hollow body, and the pumping path 20 may constitute the flow path 26 alone by forming the hollow portion as the flow path 26.

DESCRIPTION OF SYMBOLS 1 Washing machine 4 Washing tub 4D Bottom part 7 Center axis 9 Partition member 10 Internal space 11 1st space 12 2nd space 13 Fan 20 Pumping path 22 Exit 25 Inlet 25A Center 26 Channel 27 Closure member 40 Inclination member S Laundry X1 Upper part Y circumferential direction

Claims (7)

A laundry tub for storing laundry and storing water;
Water collected in the washing tub, having an inlet located at the bottom of the washing tub, a vertically long slit-shaped outlet located higher than the inlet, and a flow path extending upward from the inlet to the outlet. A pumping channel that takes in the water from the inlet, pumps it up through the flow path, and discharges it from the outlet into the washing tub.
A blocking member that is provided in the pumping path and closes an upper end of the flow path;
A washing machine comprising: a fan provided at the bottom of the washing tub isolated from the laundry and rotating to feed water accumulated in the washing tub to the inlet.   It includes a partition member provided at the bottom of the washing tub, and partitions the internal space of the washing tub into a first space in which laundry is disposed and a second space in which the fan is disposed. The washing machine according to claim 1.   The washing machine according to claim 1 or 2, wherein the closing member is located at an upper end of the outlet. The washing tub is cylindrical with an axis extending vertically,
The washing according to any one of claims 1 to 3, wherein in the pumping channel, the outlet is arranged to be shifted in the circumferential direction with respect to the center of the inlet in the circumferential direction of the washing tub. Machine.   The washing machine according to claim 4, wherein the outlet is disposed facing the circumferential direction.   The washing machine according to claim 4 or 5, wherein the outlets are provided on both sides in the circumferential direction in the pumping channel. The outlet is provided on one side in the circumferential direction in the pumping channel,
The washing machine according to claim 4, further comprising an inclined member that is inclined so as to approach the outlet and narrows the flow path from the inlet toward the outlet.

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