JP2012065866A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine capable of improving washing and rinsing performance by evenly supplying washing water to the whole laundry in a rotary drum.SOLUTION: A washing machine comprises: a water tank 2; a rotary drum 4; and water-discharging means including a pump 21, a spouting water passage 22 and a spouting port 26, for discharging washing water from a side of the water tank 2 to a side of the rotary drum 4. In the machine, the rotary drum 4 has a collision plane 29 against which the washing water discharged from the spouting port (the water-discharging means) 26 collides, the collision plane 29 being formed so as to be slanted with respect to a water-discharging direction as viewed from a radial cross section of the rotary drum 4 to thereby change the water-discharging direction of the washing water as the rotary drum 4 is being rotated.

Description

  The present invention relates to a washing machine for washing clothes and the like.

  Conventionally, this type of washing machine has a structure in which washing water in a water tub is circulated into a rotating tub by a pump and sprayed onto the laundry, little by little from the front side of the rotating tub to the center side of the rotating tub. There is considered one in which a plurality of jet outlets are formed at different angles (see, for example, Patent Document 1).

  In a vertical washing machine in which the rotation axis of the washing tub is vertical, it is considered to provide a plurality of water supply ports at the opening of the washing tub (see, for example, Patent Document 2).

JP-A-10-127978 Japanese Patent Laid-Open No. 2005-334412

  However, in the conventional configuration, the jet outlet is provided at the upper front side of the rotating tub and the washing water is jetted downward. Even if it ejects from the outlet, there is a problem that the washing water cannot be uniformly applied to the laundry present at various positions in the rotating tub. In addition, in the vertical washing machine, there is a problem in that the laundry is in the washing water in a state of being biased toward the inner peripheral side surface of the washing tub due to water flow, and the rinse water supplied cannot be supplied uniformly to the laundry. There was a problem that efficiency and rinsing efficiency were poor.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a washing machine that uniformly supplies washing water to the entire laundry in a rotating tub and is excellent in washing performance and rinsing performance.

  In order to solve the above-described conventional problems, the washing machine of the present invention includes water discharge means for discharging wash water from the water tank side to the rotary tank side, and the rotary tank collides with the wash water discharged from the water discharge means. The collision surface is formed so as to be inclined with respect to the water discharge direction when viewed from the radial cross section of the rotating tub, and the water discharge direction of the washing water is changed with the rotation of the rotating tub. is there.

  Thus, when the washing water is discharged from the water tank side to the rotating tank side by the water discharging means, the washing water collides with the collision surface and is diffused in the axial direction of the rotating tank, and the water discharging direction of the washing water with the rotation of the rotating tank Since this changes in the radial direction of the rotating tub, the washing water can be uniformly supplied to the entire laundry in the rotating tub, and the washing performance and the rinsing performance can be improved.

  The washing machine of the present invention can change the water discharge direction of the water discharged from the water discharge means along with the rotation of the rotating tub, and supply the washing water evenly to the entire laundry in the rotating tub. Can be improved.

Sectional drawing of the washing machine in Embodiment 1 of this invention Main section enlarged view of the washing machine AA arrow view of the washing machine in FIG. BB arrow view of the washing machine in FIG.

  The first invention includes a water tank for storing washing water, a cylindrical rotary tank that is rotatably disposed in the water tank and has an opening on the front side, a motor that rotationally drives the rotary tank, and the water tank Water discharge means for discharging the wash water from the side to the rotary tub side, the rotary tub having a collision surface for colliding the wash water discharged from the water discharge means, and the collision surface in the radial direction of the rotary tub Washing water discharged from the water tub side to the rotating tub side by the water discharging means by being inclined with respect to the water discharging direction when viewed from the cross section and changing the water discharging direction of the washing water as the rotating tub rotates. Since it collides with the collision surface and is diffused in the axial direction of the rotating tub, and the water discharge direction of the washing water changes in the radial direction of the rotating tub with the rotation of the rotating tub, the washing water is fed to the entire laundry in the rotating tub. Can be supplied evenly, washing performance and rinsing It is possible to improve the performance.

  In the second invention, in particular, the collision surface of the first invention is rotated from the water tank side by the water discharge means by providing a plurality of the collision surfaces around the rotation axis of the rotating tank at the periphery of the opening formed in a substantially circular shape. The washing water discharged to the tank side can change the water discharge direction multiple times in the radial direction of the rotating tank while the rotating tank makes one rotation by the plurality of collision surfaces. The entire laundry can be supplied evenly, and the washing performance and the rinsing performance can be improved.

  In the third invention, in particular, the collision surface of the second invention is arranged at substantially equal intervals around the periphery of the opening, so that the washing water discharged from the water tank side to the rotating tank side by the water discharge means does not collide. The time interval at which the water discharge direction changes in the radial direction of the rotating tub depending on the surface can be made equal during one rotation of the rotating tub, and the washing water can be distributed evenly throughout the laundry in the rotating tub. The cleaning performance and the rinsing performance can be improved.

  According to a fourth aspect of the present invention, in particular, the impact surface of the second or third aspect of the invention is configured such that the inclination angle with respect to at least one or more water discharge directions is different from the inclination angle of the other impact surfaces, thereby providing water discharge means. The washing water discharged from the water tank side to the rotating tank side can be changed in multiple stages in the radial direction of the rotating tank by a plurality of collision surfaces. Can be supplied evenly, and cleaning performance and rinsing performance can be improved.

  In the fifth aspect of the invention, in particular, by providing a plurality of outlets of the water discharge means of any one of the first to fourth aspects, the wash water can be discharged from a plurality of positions along the periphery of the opening. In addition, the water discharge direction can be changed by the collision surface along with the rotation of the rotating tub, so that the washing water can be uniformly supplied to the entire laundry in the rotating tub, and the cleaning performance and the rinsing performance can be improved.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
1 is a cross-sectional view of the washing machine according to the first embodiment of the present invention, FIG. 2 is a cross-sectional view of the main part of the washing machine, and FIG. 3 is a view of the washing machine taken along the line AA in FIG. FIG. 4 is a BB arrow view of the washing machine in FIG.

1 to 4, a water tank 2 formed in a bottomed cylindrical shape in a housing 1 is elastically supported by a suspension 3. A rotating tank 4 formed in a bottomed cylindrical shape is disposed in the water tank 2 so as to be rotatable. The rotation axis 4 a of the rotating tub 4 substantially coincides with the cylindrical center line of the rotating tub 4, and this substantially coincides with the cylindrical center line of the water tub 2. The water tank 2 and the rotating tank 4 are each provided with openings 5 and 6 on the front side, the opening 5 side of the water tank 2 is the front side of the housing 1, and the rotation axis 4a of the rotating tank 4 is in the horizontal direction. It is supported so as to be inclined forward (for example, 10 to 20 degrees).

  A door body 7 that can be opened and closed is provided on the front surface of the housing 1 so as to face the openings 5 and 6 of the water tank 2 and the rotating tank 4, and the laundry is opened with respect to the rotating tank 4 by opening the door body 7. Can be put in and out. A bellows 8 formed of a flexible elastic body such as rubber is disposed around the opening 5 of the water tank 2, and when the door body 7 is closed, one end of the bellows 8 is in pressure contact with the inner surface, The opening 5 and the door body 7 are sealed.

  A motor 9 that rotationally drives the rotating tub 4 is attached to the end surface of the water tub 2 opposite to the opening 5. The rotor of the motor 9 is connected to the rotating tub 4 by a tank rotating shaft 10, and the rotation of the motor 9 is transmitted to the rotating tank 4 by the tank rotating shaft 10. A plurality of protrusions 12 are provided on the cylindrical wall 11 of the rotating tub 4 so as to protrude inward toward the rotation axis 4 a, and the laundry is hooked by the protrusions 12 by rotating the rotating tub 4. Then, it is possible to perform an operation of dropping from above in the rotary tank 4 by lifting it upward.

  A large number of small holes 13 communicating with the inside of the water tank 2 are provided in the cylindrical wall 11 of the rotating tank 4, and when the washing water in the water tank 2 accumulates at a predetermined water level, the rotating tank 4 extends from the small hole 13. It is configured so that washing water enters inside.

  Above the water tank 2, a detergent container 14 for storing detergent is provided. The detergent container 14 is connected to a water supply valve 15 connected to a water tap, and the supply and stop of the tap water to the detergent container 14 is performed by opening and closing the water supply valve 15. A water supply path 16 is provided below the detergent container 14 to guide the water introduced into the detergent container 14 into the water tank 2 together with the detergent.

  Below the water tank 2, a discharge port 17 for discharging the wash water in the water tank 2 is provided, and a drainage path 18 for guiding the wash water discharged from the discharge port 17 to the outside of the housing 1 is provided. Yes. A drain valve 19 that opens and closes the drain path 18 is provided in the middle of the drain path 18.

  A circulation path 20 that guides the washing water discharged from the water tank 2 to the water tank 2 again through the rotary tank 4 is connected to the discharge port 17, and is branched from the drain path 18. The circulation path 20 is disposed substantially horizontally below the water tank 2 from the rear lower part of the water tank 2 toward the front. A pump 21 is provided in the middle of the circulation path 20. When the pump 21 is driven, the wash water in the water tank 2 is drawn into the circulation path 20 from the discharge port 17, and the wash water flowing into the circulation path 20 is added. The water can be supplied to the rotating tank 4 and circulated to the water tank 2 through the circulation path 20.

  On the inner side of the front part of the water tank 2, an ejection water channel 22 is annularly provided on the outer peripheral side of the circular opening 5 provided in the water tank 2 as viewed from the opening 6 side of the rotating tank 4 (FIG. 4). The ejection water channel 22 is provided outside the peripheral edge 23 of the opening 6 provided in a circular shape on the front side of the rotating tub 4. The opening 5 provided in the water tank 2, the opening 6 provided in the rotating tank 4, and the ejection water channel 22 are formed in a substantially concentric shape, and the inner peripheral edge 24 of the ejection water channel 22 is formed from the peripheral edge 23 of the opening 6. Located radially outside.

Wash water in the water tank 2 fed by the pump 21 is guided into the jet water channel 22 from the inlet 25 connected to the jet water channel 22 through the circulation channel 20, and provided on the rotation axis 4 a side of the jet water channel 22. Further, at least three (seven in the example of FIG. 4) are led to a plurality of jet outlets 26 (26a to 26g). The outlets 26 are provided at substantially equal intervals around the rotation axis 4 a of the rotating tub 4.

  A space 27 is provided between the jet 26 and the peripheral edge 23 of the opening 6. The space portion 27 is provided with a guide portion 28 that guides the washing water ejected from the ejection port 26 to the space portion 27 toward the opening portion 6, and guides the washing water ejected to the space portion 27 to the opening portion 6. And configured to be introduced into the rotating tub 4.

  The washing water fed by the pump 21 is formed into a rod-like jet from the jet outlet 26 and is jetted substantially parallel to the opening surface of the rotary tub 4 toward the rotation axis 4 a and jetted from the jet outlet 26 into the space 27. The washed water is guided to the vicinity of the peripheral edge portion 23 of the rotating tub 4 by the guide portion 28. The guide portion 28 is formed in an annular shape on the front inner side of the water tank 2 so as to face the peripheral edge portion 23 of the opening 6 of the rotating tub 4 with a slight gap between the peripheral edge portion 23, Even if the laundry in the rotating tub 4 comes out forward, it is configured not to be caught.

  The plurality of jet outlets 26 (26 a to 26 g) are formed at positions away from the peripheral edge portion 23 of the opening 6 of the rotating tub 4 in the radial direction, and the jet outlet 26 is exposed to the opening 6 of the rotating tub 4. It is possible to pour the diffused washing water on the laundry in the rotary tub 4 without being caught in the opening 6 when the laundry is put into the rotary tub 4 or taken out. There is no damage, the laundry is easy to put in and out, and it is easy to use. The water discharge means for discharging the wash water from the water tank 2 side to the rotary tank 4 side includes a pump 21, a jet water channel 22, a jet port 26 and the like.

  There is no water guide wall or the like for guiding the jet flow ejected from the jet port 26 to the guide portion 28, and the jet flow from the jet port 26 is released into the space portion 27 and then collides with the guide portion 28 and rotates while diffusing. Since it is configured to be ejected toward the opening 6 of the tank 4 and guided into the rotating tank 4, the ejection port 26 is formed at a position away from the peripheral side portion of the opening 6 of the rotating tank 4. However, the jet flow from the spout 26 can be guided into the rotating tub 4 without receiving unnecessary wall resistance, the decrease in the flow velocity is minimized, and the washing water in the rotating tub 4 is vigorously reduced. Can be supplied to.

  A collision surface 29 is formed at the peripheral edge 23 of the opening 6 of the rotating tub 4 to change the traveling direction by colliding the washing water discharged near the peripheral edge 23 by the guide 28. The collision surface 29 is provided so as to be inclined forwardly with respect to the water discharge direction discharged by the guide portion 28 when the axial section of the rotating tub 4, that is, the opening 6 is viewed from the front.

  A plurality of collision surfaces 29 are provided at substantially equal intervals around the peripheral edge 23 of the opening 6 formed in a substantially circular shape with the rotational axis 4a of the rotating tub 4 as the center (eight locations in the example of FIG. 3). The collision surfaces 29 (29a to 29h) are sequentially opposed to the wash water discharged by the guide portion 28 as the rotating tub 4 rotates, but the inclination angles with respect to the water discharge direction are different from each other. It is configured.

  Further, the collision surfaces 29a to 29d are inclined to the left in a front-opening manner with respect to the water discharge direction, and the collision surfaces 29e to 29h are inclined to the right side. The state can be realized.

  A control means 30 for controlling the motor 9, the water supply valve 15, the drain valve 19, the pump 21, and the like and sequentially controlling each process such as washing, rinsing, and dehydration is provided at the lower rear part in the housing 1.

About the washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. In the washing or / and rinsing step, the control means 30 opens the water supply valve 15 with the drain valve 19 closed, and rotates the rotating tub 4 while supplying the washing water into the water tub 2, thereby washing the laundry. When it is hooked by the protrusion 12 and lifted upward, it is dropped at a certain height and struck against washing water.

  At this time, if the level of the washing water is raised too much, the falling distance of the laundry to the washing water is shortened, so that the tapping effect is reduced, and the washing performance and the rinsing performance are lowered. When water accumulates, the water supply valve 15 is closed. Thus, in a state where the water level in the water tank 2 is low, that is, in a state where there is little washing water, the washing water is difficult to reach the entire laundry. Washing or rinsing is performed while ejecting from the outlet 26 and hanging on the laundry.

  Here, the washing water ejected from the spout 26 is discharged to the vicinity of the peripheral edge 23 of the opening 6 of the rotating tub 4 by the guide portion 28, and then the water discharging direction (X direction in FIG. 3) and the rotating tub 4. When the collision surfaces 29 (29a to 29h) provided on the surface do not face each other, the water is discharged as it is, that is, in the Y direction in FIG. And when it opposes, it collides and collides with the collision surface 29 (29a-29h), a water discharge direction is changed, ie, it discharges in the Z direction of FIG.

  For this reason, since the washing water discharged by the water discharging means can change the water discharging direction to the radial direction of the rotating tub 4 along with the rotation of the rotating tub 4, the washing water is evenly distributed over the entire laundry in the rotating tub 4. The supply can be continued, and the cleaning performance and the rinsing performance can be improved.

  Further, when the traveling direction is changed due to a collision, the washing water is pushed and spread in the axial direction of the rotating tub 4, and after being diffused, the washing water also has a spread in the depth direction of the rotating tub 4. Therefore, the laundry can be supplied evenly.

  In addition, since the plurality of collision surfaces 29 face each other while the rotating tub 4 makes one rotation with respect to the discharge of the washing water ejected from the one outlet 26, the water discharging direction is the diameter of the rotating tub 4. Since the direction can be changed a plurality of times, the direction of water discharge can be changed frequently, the washing water can be continuously supplied to the entire laundry, and the washing performance and the rinsing performance can be further improved.

  In addition, since the plurality of collision surfaces 29 are arranged at substantially equal intervals on the peripheral edge portion 23 of the opening 6, the collision surfaces 29 discharge water from the washing water discharged from one jet outlet 26. Since the time interval in which the direction changes in the radial direction of the rotating tub 4 becomes equal during one rotation of the rotating tub 4, the washing water can be continuously supplied without being biased to the entire laundry, Performance and rinsing performance can be improved.

  Further, since the inclination angles of the plurality of collision surfaces 29 with respect to the water discharge direction are different from each other with respect to the discharge of the washing water ejected from the single outlet 26, the water discharge is performed according to the difference in the inclination angle. The water discharge direction after the changed washing water is changed, can be widely changed in the radial direction of the rotating tub 4, and the washing water can be continuously supplied to the entire laundry, and the washing performance and the rinsing performance can be improved. Can be improved.

  Further, since the washing water is discharged from the plurality of jets 26 and diffused by the collision surface 29 and the water discharge direction is changed with the rotation of the rotating tub 4, the washing water reaches a wide range in the rotating tub 4 and the washing is performed. Water can be continuously supplied to the entire laundry, and the washing performance and the rinsing performance can be improved.

In the present embodiment, the drum type washing machine has been described. However, a vertical washing machine having a stirring blade at the bottom of the rotating tub may be used. If it is a washing machine which performs, the same effect is obtained.

  As described above, the washing machine according to the present invention can change the water discharge direction of the wash water discharged from the water discharge means with the rotation of the rotating tub, and supply the washing water evenly to the entire laundry in the rotating tub. Since the washing performance and the rinsing performance can be improved, it is useful as a washing machine.

2 Water tank 4 Rotating tank 6 Opening 9 Motor 21 Pump (water discharge means)
22 Spout channel (water discharge means)
26 Spout (water discharge means)
29 Colliding surface

Claims (5)

A water tank for storing washing water, a cylindrical rotary tank that is rotatably disposed in the water tank and has an opening on the front side, a motor that drives the rotary tank to rotate, and from the water tank side to the rotary tank side A water discharge means for discharging washing water to the water tank, wherein the rotating tub has a collision surface for colliding the washing water discharged from the water discharging means, and the water discharge direction when the collision surface is viewed from a radial cross section of the rotation tank. The washing machine is formed so as to be inclined with respect to the rotating tub so that the water discharge direction of the washing water changes with the rotation of the rotating tub. The washing machine according to claim 1, wherein a plurality of collision surfaces are provided around the periphery of the opening formed in a substantially circular shape with the rotation axis of the rotating tub as a center. The washing machine according to claim 2, wherein the collision surfaces are arranged at substantially equal intervals around the periphery of the opening. The washing machine according to claim 2 or 3, wherein the collision surface is configured such that an inclination angle with respect to at least one water discharge direction is different from an inclination angle of another collision surface. The washing machine according to any one of claims 1 to 4, wherein a plurality of water outlets are provided.

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