TWI656256B - washing machine - Google Patents

Abstract

[Problem] To provide a washing machine that circulates washing water appropriately with a simple configuration. [Solution] The washing machine (100) includes a bottomed cylindrical laundry tank (10), a stirring blade provided at the bottom of the laundry tank (10), and a laundry tank (10). The plate-shaped circulation flow path member (70) on the inner peripheral surface is constituted, and the washing tank (10) is provided near the edge (11b) of the peripheral wall of the washing tank (10), and is provided with a protrusion protruding toward the inside in the diameter direction. The convex portion (11a) and the convex portion (11a) are provided between the central axis of the washing tub (10) and the edge (11b) which is closer to the peripheral wall in the axial direction of the washing tub (10). The first inclined surface (K1) inclined in such a manner that the distance in the diameter direction becomes shorter, the discharge side of the circulation flow path member (70) extends in the axial direction of the washing tub (10), and circulates. The front end (70a) of the discharge side of the flow path member (70) is located near the convex portion (11a).

Description

washing machine

[0001] The present invention relates to a washing machine.

[0002] It is known that a washing machine that lifts and circulates laundry water by rotating a stirring blade provided at the bottom of a washing tub. As such a washing machine, for example, Patent Document 1 describes a washing machine provided with a "first inner cover member at the inner peripheral surface side of the carcass portion ..." and This 1st cover member is the 2nd cover member attached from the inner peripheral side of a washing tub. [Prior Art Document] [Patent Document] [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2009-28146

[Problems to be Solved by the Invention] 0004 [0004] However, the washing machine described in Patent Document 1 has a structure including a first cover member, a second cover member, and the like. Complications and increased manufacturing costs. In addition, there is a possibility that filaments or the like may enter the engagement place between the first cover member and the second cover member. [0005] Furthermore, in the technology described in Patent Document 1, the engagement place between the first cover member and the second cover member protrudes toward the outside in the diameter direction of the washing tub. Therefore, since the width of the water-passing space (the width in the diameter direction) between the aforementioned engaging place and the inner peripheral surface of the washing tub is narrowed, there is a possibility that the circulating flow rate of the washing water may decrease. [0006] Therefore, an object of the present invention is to provide a washing machine that circulates washing water appropriately with a simple configuration. [Means to Solve the Problem] [0007] In order to solve the foregoing problem, the washing machine of the present invention is characterized by including a bottomed cylindrical laundry tub and a stirring blade provided at the bottom of the laundry tub. And a plate-like circulation flow path member provided on the inner peripheral surface of the washing tub and directing the washing water which is pushed and flowed along with the rotation of the stirring blade to be discharged upward, and constituted, The groove is provided near the edge of the peripheral wall of the washing tub, and has a convex portion protruding toward the inner side in the diameter direction. The convex portion is provided with a portion closer to the peripheral wall if it is in the axial direction of the laundry tub. The first inclined surface that is inclined in such a manner that the distance between the edge and the central axis of the washing tub becomes shorter, and the discharge side of the circulation flow path member is tied in the axial direction of the laundry tub. And extended, the front end of the discharge side of the circulation flow path member is located near the convex portion. [Effects of the Invention] According to the present invention, it is possible to provide a washing machine capable of appropriately circulating washing water with a simple configuration.

[0010] Hereinafter, as one example, a washing machine 100 (a so-called fully automatic washing machine: refer to FIG. 1) that performs washing, washing, and dehydration will be described. [0011] Embodiment FIG. 1 is a schematic diagram showing an internal configuration of a washing machine 100 according to an embodiment. The washing machine 100 shown in FIG. 1 is a machine for washing clothes and the like, and mainly includes a washing tank 10, a stirring wing 20, an outer tank 30, a driving device 40, a control unit 50, and a balance ring. 60 (fluid balancer), circulation flow path members 70 and 80, and an outer frame 90. In addition, in FIG. 1, the other circulation flow path member 80 (refer FIG. 3A) is not shown. [0012] The laundry tank 10 is a person holding the laundry R, and has a bottomed cylindrical shape. The washing tub 10 is provided with a cylindrical carcass plate 11 (peripheral wall of the washing tub 10) and a bottom plate 12 which closes the lower part of the carcass plate 11. At the carcass plate 11, a plurality of dewatering holes h1 (in FIG. 1, for dehydrating the washing water contained in the laundry R by the centrifugal force generated by the rotation of the washing tub 10) are provided. Part of it is illustrated). [0013] The stirring wing 20 (pulsating wing disk, also referred to as a pulsator) is slightly disc-shaped, and is disposed at the bottom of the washing tub 10. The stirring blade 20 is rotatably supported by a shaft by a driving device 40. When washing or washing, the washing water and the laundry R are stirred together by rotating the stirring blade 20. [0014] The outer tub 30 has a bottomed cylindrical shape, and the laundry tub 10 is coaxially mounted (that is, the central axis is in a slightly same state) as an inner package. The outer groove 30 is suspended from the vicinity of the upper end of the outer frame 90 via a shockproof device G such as a coil spring or elastic rubber. A drain port ha is provided at the bottom of the outer tub 30 to drain laundry water. This drain port ha is connected to the drain pipe H1 via a drain valve V1. [0015] The driving device 40 is provided with a motor and a reduction mechanism for rotating the stirring blade 20, and although not shown, it also includes a clutch and is mounted on the outside of the bottom of the outer tank 30 via the mounting base B. When washing or washing, the rotation of the motor is transmitted to the stirring blade 20 via the clutch, and the stirring blade 20 is rotated forward and backward while the washing tub 10 is stationary. In addition, during dehydration, the washing tank 10 and the stirring blade 20 are integrated and rotated at a high speed by the motor. [0016] The control unit 50 is provided with a function for controlling a device such as the drive device 40, and is provided above the outer frame 90. The gimbal ring 60 is a fluid balancer having an outer ring shape in which a fluid (brine, etc.) is sealed inside. The balance ring 60 is provided with a function to offset the eccentricity and maintain the balance of the rotation by the movement of the fluid when the eccentricity occurs due to the deviation of the laundry R or the like during the rotation of the washing tub 10. [0017] The circulation flow path member 70 is a plate-shaped member that guides the washing water that is pushed and flowed along with the rotation of the stirring blade 20 to the top and spit out, and is installed on the carcass plate 11 of the washing tub 10. Inner peripheral surface. The details of the circulation flow path member 70 will be described later. [0018] The outer frame 90 is a frame body that houses the aforementioned components and has a box shape. The outer frame 90 is provided with a base member 91 at a lower portion thereof, and is provided with an upper cover 92 at an upper portion. The center part of the top cover 92 is provided with a laundry input port hb for allowing the laundry R to come in and out. At this laundry input port hb, a cover body 93 is provided to be opened and closed. [0019] There is a gap between the outer peripheral surface of the washing tub 10 and the inner peripheral surface of the outer tub 30. A tank cover C is provided so as to prevent the laundry R from entering the gap, and covers the gap from above. In addition, the washing machine 100 is provided with a water supply pipe H2 and an electromagnetic water supply valve V2, and also includes a pressure-sensing water level sensor S and the like. [0020] For example, when performing washing or washing, the solenoid water supply valve V2 is opened by the instruction of the control unit 50, and the washing water is supplied to the outer tank 30 through the water supply pipe H2. However, if it is detected that the system has reached a specific water level based on the detection value of the water level sensor S, the electromagnetic water supply valve V2 is closed by the control unit 50 and the water supply system is stopped. When dehydration is performed, the drain valve V1 is opened by the control unit 50, and the washing water in the outer tub 30 is discharged through the drain pipe H1. [0021] FIG. 2 is a longitudinal sectional view of a washing tub 10 and the like provided in the washing machine 100 according to the embodiment. In addition, in FIG. 2, the illustration of the dehydration hole h1 (refer FIG. 1) is abbreviate | omitted.底板 The bottom plate 12 shown in FIG. 2 is a dish-like member that closes the lower portion of the carcass plate 11 and is fixed to the lower end of the carcass plate 11. The bottom plate 12 includes a bottom portion 12 a constituting the bottom surface of the washing tub 10, and a side portion 12 b extending from the outer peripheral edge of the bottom portion 12 a toward the upper side and constituting a part of the side surface of the laundry tub 10. In addition, at the bottom portion 12a, a plurality of holes hc communicating with the outer groove 30 side are provided. [0022] The stirring blade 20 is a slightly disc-shaped member covering the bottom plate 12. The stirring blade 20 is formed such that the vicinity of the center in the diameter direction is raised toward the upper side, and the vicinity of the peripheral edge is bent upward and downward in the circumferential direction like a wave. In addition to the hole hd, the stirring blade 20 is provided with a plurality of circular recessed portions 21 and protruding portions 22 extending in the diameter direction. [0023] The circulation flow path member 70 provided on the inner peripheral surface of the carcass plate 11 is a member that guides the washing water that is pushed and flowed along with the rotation of the stirring blade 20 to the top and spits out as described above. . The circulation flow path member 70 has a long and thin plate shape in the longitudinal direction, and is bent toward the side opposite to the inner peripheral surface of the carcass plate 11 when viewed in a cross section. [0024] Although not shown in the inside of the circulation flow path member 70, a pair of ribs extending in the longitudinal direction are provided near both ends in the circumferential direction of the circulation flow path member 70. In addition, when the circulation flow path member 70 is fixed to the carcass plate 11 by screwing, the aforementioned ribs are brought into contact with the carcass plate 11 and bent, thereby becoming closely adhered to the carcass plate 11. Thereby, the vicinity of both ends of the circulation flow path member 70 in the circumferential direction can be closely adhered to the inner peripheral surface of the carcass plate 11. [0025] In addition, the lower end and the upper end of the circulation flow path member 70 are not tightly attached to the ground of the carcass plate 11 and are opened. In addition, it is a gap (hereinafter, referred to as "circulation flow path P", refer to FIG. 1) between the inside of the circulation flow path member 70 and the inner peripheral surface of the carcass plate 11, and is caused by rotation of the stirring blade 20 Raise the washing water upwards. That is, the washing water is pushed up from the bottom of the washing tub 10 to the upper part via the circulation flow path P, and then the washing water returns to the inside of the washing tub 10 through the discharge port he. In the present embodiment, a pair of circulation flow path members 70 are provided facing each other with the central axis O of the washing tub 10 as a reference (see FIG. 7A). [0026] Further, on the inner peripheral surface of the carcass plate 11, other types of circulation flow path members 80 are provided at intervals of 90 ° in the circumferential direction with respect to the circulation flow path member 70. This circulation flow path member 80 will be described using FIG. 3A. [0027] FIG. 3A is a longitudinal sectional view of a washing tub 10 and the like provided in the washing machine 100 according to the embodiment. In addition, FIG. 3A shows a longitudinal cross-sectional view of the circulation channel member 80 viewed from the front side of the washing tub 10 with the stirring blade 20 removed. As shown in FIG. 3A, the circulation flow path member 80 includes a base portion 81 and a filament collection portion 82. The base portion 81 is a plate-shaped member in which the vicinity of the upper end and the vicinity of both ends in the circumferential direction are closely adhered to the inner peripheral surface of the carcass plate 11. Although not shown, the base portion 81 is provided with an opening having a shape corresponding to the filament collection portion 82. In addition, near the lower end of the base portion 81, an inlet hf is provided for introducing washing water that is pushed and flowed by the rotation of the stirring blade 20. [0028] The shred collection unit 82 is a detachable type member for collecting shreds and the like, and is installed at the opening (not shown) of the base 81 described above. A plurality of holes hg are provided in the filament collection part 82, and a lint filter (not shown) is attached to the area of these holes hg. A discharge port hi is provided on the upper side of the plurality of holes hg to discharge the washing water. [0029] The washing water flowing in through the inlet hf is pushed up through a gap between the circulation flow path member 80 and the carcass plate 11 (hereinafter, referred to as "circulation flow path Q", not shown). In the process in which the washing water flows in the circulation flow path Q described above, the shreds collection unit 82 collects the shreds and the like, and further, the washing water returns to the washing tub 10 through the discharge port hi. . [0030] In addition, instead of providing the filament waste collection portion 82 at the aforementioned discharge outlet hi, a slit-shaped discharge outlet may be provided near the upper end of the base portion 81. In this embodiment, a pair of circulation flow path members 80 and 80 are provided facing each other with the central axis O of the washing tub 10 as a reference (see FIG. 7A). [0031] FIG. 3B is an enlarged view of a part of a range of a dotted line J shown in FIG. 3A. As shown in FIG. 3B, the washing tub 10 is provided near the edge 11b (end edge) of the peripheral wall of the washing tub 10, and has a convex portion 11a protruding toward the inside in the diameter direction. In addition, a convex portion 11 a is formed to cover the entire circumference of the peripheral wall of the washing tub 10, and a balance ring 60 is provided above the convex portion 11 a. [0032] If the installation of the balance ring 60 is further described in detail, in the state where the balance ring 60 is placed on the convex portion 11a, the vicinity of the edge 11b of the peripheral wall of the washing tub 10 is directed inward in the diameter direction. Make a bend. By such a curling operation, the vicinity of the aforementioned edge 11 b is brought into close contact with the upper surface of the rib 61 provided on the outer peripheral wall of the balance ring 60.凸 In addition, the convex portion 11a also has a function of suppressing the deformation of the washing tub 10 toward the outside in the diameter direction due to centrifugal force during dehydration and ensuring its strength during dehydration. [0033] As shown in FIG. 3B, the convex portion 11a is provided with the first inclined surface K1. The first inclined surface K1 is based on the axis 11 of the washing tub 10 and closer to the edge 11b of the peripheral wall (that is, if the height is higher), and the central axis O of the washing tub 10 (refer to FIG. 3A). The distance between the diameters will become shorter in a manner that makes it tilt. The first inclined surface K1 is an inclined surface for guiding the washing water pushed upward by the circulation flow path P to the inclined direction (to make the washing water advance toward the inside in the diameter direction as the washing water rises). [0034] The discharge side of the circulation flow path member 70 extends toward the axial direction of the washing tub 10 (in FIG. 3B, it is a vertical direction). Therefore, for example, compared with the structure which bends the vicinity of the discharge opening he of the circulation flow path member 70 toward the inside in the diameter direction (see the comparative example of FIG. 6B), it is possible to suppress a decrease in the circulation flow rate of the washing water. 3B, the front end 70a on the discharge side of the circulation flow path member 70 extends to the vicinity of the convex portion 11a of the washing tub 10 (shown in FIG. 3B). In the example, it is slightly lower than the front end of the convex portion 11a). This makes it possible to suppress a decrease in the circulating flow rate of the washing water, and to guide the washing water in a direction parallel to the first inclined surface K1 of the convex portion 11a. [0036] In addition, if the front end 70a on the discharge side of the circulation flow path member 70 is placed at a lower distance from the convex portion 11a by a certain distance or more, the washing water flows from the circulation before reaching the convex portion 11a. The possibility of the road member 70 flowing down becomes high. On the other hand, if the front end 70a on the discharge side of the circulation flow path member 70 is positioned at a distance higher than a certain distance from the convex portion 11a, the balance ring 60 and the front end 70a of the circulation flow path member 70 The distance system will become too short, and the exposure resistance will increase, which will cause the circulation flow of the washing water to decrease. Therefore, as described above, it is preferable that the front end 70a on the discharge side of the circulation flow path member 70 is located near the convex portion 11a. [0037] The balance ring 60 is attached to the lower portion of the inner peripheral surface thereof and includes a second inclined surface K2 near the convex portion 11a. The second inclined surface K2 is an inclined surface for guiding the washing water flowing out in an oblique direction along the first inclined surface K1 of the convex portion 11a, and further guiding the washing water in a substantially the same direction. This second inclined surface K2 is substantially the same plane as the first inclined surface K1 of the convex portion 11a, and is located further inward than the convex portion 11a in the diameter direction. In addition, the distance L1 between the second inclined surface K2 and the front end 70a of the circulation flow path member 70 is suitable so as not to hinder the flow of the washing water pushed up through the circulation flow path P. set up. 3B, the second inclined surface K2 is viewed in a longitudinal section (a longitudinal section at a plane containing the central axis O of the washing tub 10, see FIG. 3A). ) And exists on the extension line of the discharge side of the circulation flow path member 70. As a result, the washing water pushed up at a specific flow rate is discharged along the second inclined surface K2. [0039] Furthermore, the balance ring 60 is located on the inner side in the diameter direction than the second inclined surface K2, and is provided with a diffusion surface K3 that allows washing water to collide with itself and diffuse. In the example shown in FIG. 3B, the diffusion surface K3 is a plane (ie, a horizontal plane) perpendicular to the central axis O of the washing tub 10. As a result, the washing water flowing out along the first inclined surface K1 and the second inclined surface K2 collides with the diffusion surface K3, and the washing water can be spread over a wide range in the washing tub 10. [0040] FIG. 4 is a perspective view showing the inner side of the stirring wing 20 provided in the washing machine 100. As shown in FIG. 4, the stirring blade 20 is attached to the inside (lower side) of the stirring blade 20 and includes a plurality of inner blades extending radially from the central axis O toward the diameter direction. The inner fan blades 23 are arranged at equal angular intervals in the circumferential direction. [0041] For a more detailed description, inside the two areas that are raised above the stirring wing 20 (in FIG. 4 shown on the inside of the stirring wing 20, it is the bottom), The system is formed with inner fan leaf groups 23A and 23A. Each of the inner fan blade groups 23A is composed of five inner fan blades, and is arranged in an angular range of about 90 degrees in the circumferential direction. The inner fan group 23A is provided with a function of introducing washing water for circulation and a function of suppressing flexure and deformation of the stirring blade 20. [0042] Between the inner fan leaf groups 23A and 23A, other inner fan leaf groups 23B and 23B are provided. Here, the fan blade groups 23B and 23B are formed in the two recessed areas below the stirring blade 20 (in FIG. 4 shown on the inside of the stirring blade 20, it is upward). . The inner fan blade group 23B is composed of three inner fan blades 23 and has a function of suppressing the bending deformation of the stirring blade 20. [0043] Around the center of the inside of the stirring blade 20, three ring ribs 24 are formed, which are formed concentrically with the central axis O. These ring ribs 24 have a function of reinforcing the inner fan blade groups 23A, 23A, 23B, and 23B. [0044] Furthermore, inside the stirring blade 20, the outer peripheral side ribs 25 and the inner peripheral side ribs 26, 27 are extended in the circumferential direction, and are formed at a predetermined interval in the radial direction. The outer peripheral side ribs 25 and the inner peripheral side ribs 26 and 27 are respectively curved with a curvature that is slightly the same as the curvature of the stirring blade 20. [0045] The outer peripheral side rib 25 is a peripheral rib located on the outer peripheral side of the stirring blade 20. The outer side ribs 25 extend from the inner fan blade 23 at one end to the inner fan blade 23 at the other end in the circumferential direction of the inner fan blade group 23A, and are integrally formed with these inner fan blades 23 . [0046] The inner peripheral side ribs 26 and 27 are peripheral ribs located on the inner peripheral side rather than the outer peripheral side rib 25. The inner peripheral side ribs 26 and 27 are integrally formed with three inner fan blades 23 among the five inner fan blades 23 of the inner fan blade group 23A. [0047] FIG. 5 is a longitudinal sectional view showing a positional relationship between the inlet hj of the circulation flow path P of the washing machine 100 and the outer peripheral side ribs 25 and the inner peripheral side ribs 26 and 27. In addition, FIG. 5 is a longitudinal sectional view showing the central fan blade 23 included in the five fan blades 23 included in the fan blade group 23A (refer to FIG. 4) from the front. . [0048] Below the circulation flow path member 70 (near the bottom of the washing tub 10), a flow inlet hj that guides washing water to the circulation flow path P is provided. In addition, the space between the bottom of the inside of the washing tub 10 and the fan blades 23 inside the stirring blade 20 becomes the pump chamber M. The washing water that is pushed to the outside in the diameter direction through the pump chamber M is pumped upwards through the inflow port hj and the circulation flow path P. [0049] The outer peripheral portion of the stirring blade 20 is formed with a lower portion 28 extending downward toward the inflow port hj. A specific gap hk is provided between the vertical lower portion 28 and the circulation flow path member 70. The size of the gap hk is set to a distance such that the stirring blade 20 does not contact the circulation flow path member 70. [0050] In a state where the laundry R (refer to FIG. 1) is put into the washing machine 100 thus constituted, if the power switch (not shown) is turned ON, and the start key (not shown) is turned on When pressed further, each device is controlled by the control unit 50 (refer to FIG. 1). That is, the electromagnetic water supply valve V2 (refer to FIG. 1) is controlled and is always supplied with water to a specific water level, and moves to a laundry project. In the washing process, the driving device 40 (refer to FIG. 1), for example, the stirring blade 20 rotates in the order of right rotation, stop, left rotation, and stop. As a result, the laundry R system is stirred together with the washing water, and the laundry R system is washed. [0051] <Actions and Effects> FIG. 6A is a vertical cross-sectional view showing the flow of washing water through the circulation flow path P in the washing machine 100 according to the embodiment. In addition, the size of the blank arrow represents the magnitude of the flow rate of the washing water flowing in the circulation flow path P (the same is true for FIG. 6B). The washing water rising through the circulation flow path P is tied to the discharge port he, and is guided to the inclined direction (becomes the first inclined surface K1 of the convex portion 11a and the second inclined surface K2 of the balance ring 60). Make the washing water move in the direction of the inside of the diameter direction as it rises). Thereafter, due to the collision between the washing water and the diffusion surface K3 of the balance ring 60, the washing water is advanced toward the inside in the diameter direction. In a plan view, the washing water is scattered in a wide range within the washing tub 10. [0052] As described above, the discharge side of the circulation flow path member 70 extends in the axial direction up to the vicinity of the convex portion 11a. That is, at the discharge side of the circulation flow path member 70, the flange 71A (refer to FIG. 6B) is not provided as in the comparative example described below. Therefore, since the circulation of the washing water due to the circulation flow path member 70 is hardly hindered (the flow rate is reduced), the rotation speed of the stirring blade 20 (see FIG. 5) is not excessively increased, and Can ensure sufficient circulation flow. [0053] FIG. 6B is a longitudinal cross-sectional view showing the flow of washing water through the circulation flow path P in the washing machine of the comparative example.比较 The comparative example shown in FIG. 6B is different from the present embodiment (see FIG. 6A) in that a flange 71A is provided near the outlet hm of the circulation flow path member 70A. The flange 71A is a portion where the vicinity of the front end on the discharge side of the circulation flow path member 70A is turned toward the inside in the diameter direction and is bent. In the comparative example, the second inclined surface K2 (see FIG. 6A) is not provided under the gimbal ring 60A. This point is different from this embodiment. [0054] In the configuration shown in FIG. 6B, the washing water that is pushed upward through the circulation flow path P is directed inward in the diameter direction through the gap between the flange 71A and the balance ring 60A. Here, the gap between the flange 71A and the balance ring 60A is narrowed in the longitudinal direction, and the flow path resistance is large. Therefore, the possibility of reducing the flow of laundry water is Is high. [0055] That is, if the height of the rim 71A is lowered, the possibility that the washing water enters the gap between the rim 71A and the balance ring 60A becomes higher, and the laundry R will be connected to the rim 71A. Collision makes it vulnerable to injury. [0056] In contrast, in the present embodiment shown in FIG. 6A, the discharge side of the circulation flow path member 70 extends toward the axial direction. Therefore, near the front end of the circulation flow path member 70, the flow of washing water The road system was opened. Therefore, there is almost no case where the flow of the washing water is hindered by the circulation flow path member 70. [0057] For example, suppose that the distance L1 (the distance between the front end 70a of the circulation flow path member 70 and the second inclined surface K2) shown in FIG. 3B is the distance L2 (锷The distance between the edge 71A and the balance ring 60A is the same, and the rotation speed of the stirring blade 20 (see FIG. 2) is also the same. Even in this case, the same is true. The circulation flow rate of the washing water in this embodiment is larger than that in the comparative example. This is because, as described above, the flow path of the washing water is opened near the front end 70 a (refer to FIG. 3B) of the circulation flow path member 70. [0058] In addition, along the first inclined surface K1 of the convex portion 11a and the second inclined surface K2 of the balance ring 60, the washing water system is forced to flow, and further collides with the diffusion surface K3 of the balance ring 60. . Thereby, the washing water is scattered in a wide range in the washing tub 10 in a plan view. [0059] In addition, this embodiment is not a complicated structure like the aforementioned Patent Document 1, but a simple structure, and a shape of the laundry tank 10, the circulation flow path member 70, and the balance ring 60. To guide the washing water to a specific direction. Furthermore, it is not necessary to additionally provide a rectifying rib (not shown) on the inner peripheral surface of the washing tub 10 to guide washing water to a specific direction. This makes it possible to reduce programs and costs required for manufacturing the washing machine 100. In addition, it is possible to prevent the filaments and the like from entering the gaps in the circulation flow path member 70. [0060] FIG. 7A is a plan view showing a range in which the washing water is scattered in the washing tub 10 of the washing machine 100 according to the embodiment. Note that the illustration of the balance ring 60 is omitted in FIG. 7A (the same is true for FIG. 7B). (2) As described above, in this embodiment, the flow rate of the washing water is hardly reduced, and the washing water is dispersed into the washing tub 10 through the discharge port he. As a result, the distance between the washing water and the scattered water is longer than that of the comparative example (refer to FIG. 6B). Therefore, in a plan view, the washing water covers almost the entire area of the washing tub 10 (area U in the oblique line). And was scattered. As a result, the washing water is scattered from the laundry R (refer to FIG. 1) like a bath. Therefore, uneven washing conditions such as during washing are reduced, and washing performance can be improved. [0061] FIG. 7B is a plan view showing a range in which the washing water in the washing tub 10A of the washing machine of the comparative example in FIG. 6B is scattered.构成 In the configuration of the comparative example (refer to FIG. 6B), as described above, the flow rate of the washing water is reduced at the gap between the rim 102 and the balance ring 60A. As a result, as shown in FIG. 7B, in a plan view, there is an area where there is no scattered water and no washing water. Specifically, in the linear gaps (gap between the regions U1 and U2 of the oblique line portions) connecting the circulation flow path members 80 and 80, there is a high possibility that the water will not be scattered and there will be washing water. [0062] On the other hand, according to this embodiment, as described above, the washing water discharged from the discharge port he (see FIG. 7A) is scattered into almost the entire area of the washing tub 10 in plan view. . Therefore, the washing water can be appropriately circulated through the circulation flow path P (see FIG. 6A). [0063] ≪Modifications≫ Although the washing machine 100 of the present invention has been described based on the embodiment, the present invention is not limited to these descriptions, and various changes can be made. For example, in the embodiment, the balance ring 60 has been described as having a structure having a second inclined surface K2 (see FIG. 3B) and a diffusion surface K3 (see FIG. 3B), but the system is not limited to this. this. That is, the balance ring 60 may have a configuration in which one or both of the second inclined surface K2 and the diffusion surface K3 are not provided. Even in such a configuration, a simple configuration can appropriately circulate the washing water through the circulation flow path P (see FIG. 3B). Instead of the balance ring 60, for example, a ring-shaped frame may be provided. [0064] In the embodiment, the first inclined surface K1, the second inclined surface K2, and the diffusion surface K3 have been described as having a linear configuration when viewed in a longitudinal section (see FIG. 3B). However, the system is not limited to this. That is, at least one of the first inclined surface K1, the second inclined surface K2, and the diffusion surface K3 may have a curved shape when viewed in a longitudinal section. [0065] In the embodiment, the configuration in which the second inclined surface K2 exists on the extension line of the circulation flow path member 70 on the discharge side as viewed in a longitudinal section has been described (refer to FIG. 3B). However, the system is not limited to this. For example, the intersection point between the extension line on the discharge side of the circulation flow path member 70 and the gimbal ring 60 as viewed in the longitudinal section may be located further inward than the second inclined surface K2 in the diameter direction. [0066] In the foregoing embodiment, the configuration has been described with two circulation flow path members 70, 70 and other types of circulation flow path members 80, 80 (refer to FIG. 7A). However, the number of these components may be changed as appropriate. In the embodiment, the washing machine 100 that performs washing, washing, and dehydration has been described, but the system is not limited to this. For example, this embodiment can also be applied to a washer-dryer that performs drying in addition to washing, washing, and dehydration. [0067] The embodiments are described in detail for easy understanding of the present invention, and the present invention is not limited to the constituents including all of the descriptions. In addition, it is possible to add, delete, and replace other configurations with respect to a part of the configuration of the embodiment. In addition, the aforementioned institutions or structures are representatives who are considered to be needed in the description, and not necessarily all the institutions or structures on the product.

[0068]

100‧‧‧Washing machine

10‧‧‧ laundry sink

11‧‧‧ Carcass plate (peripheral wall)

11a‧‧‧ convex

11b‧‧‧Edge

12‧‧‧ floor

20‧‧‧ mixing wings

30‧‧‧ Outer trough

40‧‧‧Drive

50‧‧‧control unit

60‧‧‧Balance ring (fluid balancer)

70‧‧‧Circular flow path component

70a‧‧‧Front

K1‧‧‧The first slope

K2‧‧‧ 2nd inclined surface

K3‧‧‧ diffusion surface

O‧‧‧center axis

P‧‧‧Circulation flow path

[0009] FIG. 1 is a schematic diagram showing an internal configuration of a washing machine according to an embodiment of the present invention. [Fig. 2] is a longitudinal sectional view of a washing tub and the like provided in the washing machine according to the embodiment of the present invention. [Fig. 3A] is a longitudinal sectional view of a washing tub and the like provided in the washing machine according to the embodiment of the present invention. [Fig. 3B] is a partially enlarged view of the range of the dotted line J shown in Fig. 3A. [Fig. 4] is a perspective view showing the inner side of the stirring blade provided in the washing machine according to the embodiment of the present invention. [Fig. 5] is a longitudinal sectional view showing the positional relationship between the inflow port of the circulation flow path of the washing machine in accordance with the embodiment of the present invention, and the outer ribs and the inner ribs. [Fig. 6A] is a longitudinal sectional view showing the flow of washing water through a circulation flow path in the washing machine according to the embodiment of the present invention. [Fig. 6B] is a longitudinal sectional view showing the flow of washing water through the circulation flow path in the washing machine of the comparative example. [Fig. 7A] is a plan view showing a range in which the washing water is scattered in the washing tub of the washing machine according to the embodiment of the present invention. [Fig. 7B] is a plan view showing the range in which the washing water is scattered in the washing tub of the washing machine of the comparative example of Fig. 6B.

Claims (4)

A washing machine characterized by comprising: a bottomed cylindrical laundry tank, a stirring blade provided at the bottom of the laundry tank, and an inner peripheral surface of the laundry tank and accompanied by the stirring The plate-shaped circulation flow path member which is guided by the rotating and rotating washing of the wings to be pushed upward and discharged, is constituted by: The aforementioned washing tub is provided near the edge of the peripheral wall of the washing tub and has a diameter direction. The convex portion protruding from the inside, The convex portion is provided with a distance in a diameter direction between the edge of the peripheral wall and the central axis of the laundry tub if it is closer to the peripheral wall in the axial direction of the laundry tub. The first inclined surface that is inclined in a shorter manner The discharge side of the circulation flow path member extends in the axial direction of the laundry tub, The front end of the discharge side of the circulation flow path member is located at the foregoing position Near the convex part. The washing machine according to item 1 of the patent application scope, wherein the system further includes: a fluid balancer provided on the upper side of the convex portion and sealed with a fluid-shaped outer ring inside, and constituted by: The fluid balancer is located on the inner side in the diametrical direction from the convex portion, and includes a second inclined surface that is approximately the same plane as the first inclined surface. The washing machine according to item 2 of the scope of patent application, wherein the second inclined surface exists on an extension line of the discharge side of the circulation flow path member when viewed in a longitudinal section at a plane including the central axis. The washing machine according to item 2 or item 3 of the scope of the patent application, wherein the fluid balancer is located on the inner side in the diameter direction than the second inclined surface, and is provided with a mechanism for the washing water to collide with itself and diffuse. Diffusion surface.