JP2012170680A - Drum-type washing machine - Google Patents

Abstract

Disclosed is a drum-type washing machine that disperses clothing in a drum and improves cleaning performance.
A rotating drum 31 whose center axis of rotation is inclined downward from the front side to the back side, a water tank 33 containing the rotating drum 31, a motor 35, a motor 35, and the like are controlled to wash and rinse. The rotating drum 31 includes a plurality of side baffles 36 on the inner wall surface and a plurality of convex baffles 46 on the inner bottom surface, and the side baffles 36 and the convex baffles. By alternately arranging 46 on the circumference, the washing and rinsing performance can be improved and the laundry can be dispersed. A drum-type washing machine that can reduce vibration and noise during dehydration due to the dispersion of the laundry.
[Selection] Figure 1

Description

  The present invention relates to a drum-type washing machine that disperses laundry in a rotating drum, reduces entanglement between the laundry, and performs washing efficiently.

  Conventionally, this type of washing machine has been proposed with a configuration in which a baffle is provided in a rotating drum, or the shape of the baffle and the shape of the rotating drum are devised (see, for example, Patent Document 1).

  FIG. 3 shows a longitudinal sectional view of a conventional drum-type washing and drying machine described in Patent Document 1. As shown in FIG.

  In FIG. 3, a water tank 2 supported by a plurality of suspensions (not shown) is disposed in a housing 1. The aquarium 2 has a substantially cylindrical shape that is axisymmetric about the rotation axis, and is inclined so as to rise upward so that the rotation axis of the aquarium 2 is on the bottom side with respect to the horizontal direction. It is installed. And the drum 4 which has many holes 3 in the surrounding wall part is included in the water tank 2, and is rotated by the drive device 5 such as a motor provided on the bottom surface part of the water tank 2, and is rotated forward and reverse. It is like that.

  And at the time of this forward / reverse rotation, it agitates by lifting and dropping the clothing A by the baffle 6 provided on the peripheral wall in the drum 4. The baffle 6 extends from the bottom surface portion 4a in the drum toward the opening portion 2a on the front surface side, and has a wide width on the bottom surface portion 4a side. A plurality of baffles 6 are provided so as to protrude inward toward the rotation axis of the drum 4.

  The drum 4 has a taper structure in which the front surface portion has a large diameter, where D1 <D2, where D1 is the inner diameter of the bottom surface portion 4a and D2 is the inner diameter of the front surface portion.

  An auxiliary baffle 21 is provided on the bottom surface portion 4 a of the drum 4. The inclined surface 21 a is connected to the side surface of the baffle 6 and expands toward the bottom surface portion 4 a of the drum 4 to form both side surfaces 6 a of the baffle 6. In this case, the laundry can be moved to the front side of the drum 4 in either case of forward and reverse rotation of the drum 4.

JP 2009-22688 A

  However, in the conventional configuration, the drum has a taper structure with a large diameter on the front side, and the laundry easily moves to the front side when the drum rotates, but because the peripheral speed of the drum on the bottom side is fast, The laundry tends to get entangled at the part, that is, the laundry entangled at the bottom part moves to the front side, the washing is not performed efficiently, and the laundry is shifted to an unbalanced state and vibrates during dehydration There was a problem that would become larger.

  The present invention solves the above-mentioned conventional problems, and is a drum type washing machine capable of moving the laundry to the front surface side and dispersing it three-dimensionally in the drum by stirring the laundry by rotating the drum. The purpose is to provide.

  In order to solve the above-described conventional problems, a drum-type washing machine according to the present invention includes a rotating drum that is formed in a bottomed cylindrical shape and has a rotating shaft that is inclined horizontally or from the front side toward the back side, and the rotating drum. A washing tub that is elastically supported by a vibration-proof damper at a lower side of a water tub unit that includes the rotating drum, the water tub, the motor, and the like. The rotating drum is provided with a plurality of side baffles on the inner wall surface and a plurality of convex baffles on the inner bottom surface, and the side baffle is provided with a machine body and control means for controlling each process such as washing, rinsing and dewatering. And the convex baffles are alternately arranged on the circumference.

  As a result, the laundry is not easily entangled during the washing process or the rinsing process, and the laundry is three-dimensionally rotated in the rotating drum to efficiently perform the stirring operation, improving the washing and rinsing performance, and the laundry. Can be dispersed. In addition, this laundry dispersion can reduce vibration and noise during dehydration.

  The drum type washing machine of the present invention can efficiently perform a stirring operation to improve the washing and rinsing performance, disperse the laundry, and the dispersion of the laundry can reduce vibration and noise during dehydration.

The longitudinal cross-sectional view of the drum type washing machine in Embodiment 1 of this invention Cross section of rotating drum showing bottom surface of rotating drum of same drum type washing machine Longitudinal sectional view of a conventional drum-type washing and drying machine

  A first aspect of the present invention is a rotating drum formed in a bottomed cylindrical shape and having a rotating shaft inclined horizontally or from the front side toward the back side, a water tank that rotatably includes the rotating drum, and the rotating drum. A rotating motor, a washing machine main body elastically supported by a vibration-proof damper on the lower side of the water tank unit composed of the rotating drum, water tank, motor, and the like, each step of washing, rinsing, dehydrating, etc. The rotating drum is provided with a plurality of side baffles on the inner wall surface and a plurality of convex baffles on the inner bottom surface, and the side baffles and the convex baffles alternately on the circumference. Due to the arrangement, the laundry is not easily entangled during the washing process or the rinsing process, and the laundry is rotated three-dimensionally in the rotating drum to efficiently perform the stirring operation, and the washing and rinsing performance. Improve, the laundry can be dispersed. In addition, this laundry dispersion can reduce vibration and noise during dehydration.

  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)
FIG. 1 shows a longitudinal sectional view of a drum type washing machine in an embodiment of the present invention.

In FIG. 1, the rotary drum 31 is formed in a bottomed cylindrical shape, and a large number of water passage holes 32 are provided on the entire surface of the outer periphery of the rotary drum 31. A rotation axis (rotation center axis) 34 is provided at the rotation center of the rotary drum 31 in the inclination direction, and the axial center direction of the rotation drum 31 is inclined downward from the front side toward the back side. A motor 35 attached to the vicinity of the back side of the water tank 33 is connected to the rotary shaft 34 via a belt 47, and the rotary drum 31 is driven to rotate in the forward and reverse directions. The inclination angle of the rotating drum 31 is, for example, 10 degrees. A plurality of side baffles 36 for stirring clothes are provided on the inner wall surface of the rotating drum 31. A plurality of convex baffles 46 are formed on the inner bottom surface portion 40 of the rotating drum 31 inward.

  A ring-shaped protrusion 52 is formed on the outer peripheral side of the inner bottom surface of the water tank 33, and the gap with the outer bottom surface of the rotating drum 31 is reduced to a size that is acceptable for manufacturing. Thereby, the flow velocity of the wind at the time of spin-drying | dehydration can be raised, and since a pressure (sound pressure) falls by it, a wind noise is reduced.

  A drive shaft flange 51 for increasing the strength of the rotary drum 31 is fixed to the outer bottom surface side of the rotary drum 31.

  The rotating drum 31, the drive shaft flange 51, the water tank 33, the motor 35 and the like constitute a vibration water tank unit 60.

  The opening provided in the upward inclined surface of the washing machine main body 39 on the front side of the water tub 33 is covered with a lid 37 so that it can be opened and closed. By opening the lid 37, the laundry is put into the rotating drum 31 through the clothing doorway 38. Can be taken in and out.

  Further, the water tank unit 60 is supported by a vibration isolating member 41 below the washing machine main body 39 and an upper spring body 48 so that the water tank unit 60 can swing freely. One end of the drainage path 42 is connected to the lower part of the water tank 33, and the drainage path The other end of 42 is connected to a drain valve (drainage means) 43 to drain the washing water in the water tank 33.

  A water supply valve (water supply means) 44 provided in the upper part of the washing machine main body 39 supplies washing water into the water tank 33 through the water supply path 45 and the detergent case 53.

  Further, a control means 56 for controlling the operation of the motor 35 and the like and controlling each process such as washing, rinsing and dewatering is disposed inside the upper part of the washing machine main body 39.

  The motor 35 is constituted by a direct current brushless motor or the like, and is controlled to rotate forward and backward and the number of rotations by a control means 56 and a drive circuit (not shown).

  Further, on the upper front of the washing machine main body 39, an input setting means 49 for the user to select a washing course, and a display means 50 for displaying the selection result, the progress of the process, an operation error, etc. to notify the user. Is provided.

  FIG. 2 is a cross-sectional view of the drum-type washing machine according to the embodiment of the present invention as seen from the bottom surface side of the rotating drum 31.

  In FIG. 2, as described above, the inner wall surface of the rotary drum 31 is provided with a plurality of side baffles 36 for stirring the clothes, and the inner bottom surface portion is provided with a plurality of convex baffles 46. Yes. The side baffles 36 and the convex baffles 46 are alternately arranged on the circumference.

  About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  When the user opens the lid 37 and puts laundry into the rotating drum 31 and puts a predetermined amount of detergent into the detergent case 53 and starts operation, first, a washing process is executed.

In the washing process, the water supply valve 44 operates to supply the washing water, and the washing water is supplied to the water supply path 4.
5 and the detergent case 53 and enters the water tank 33 together with the detergent. After supplying water to a predetermined water level, the motor 35 is controlled, the rotating drum 31 is raised to a predetermined rotation speed, and a washing operation that repeats normal rotation, pause, reverse, and pause operations is executed for a predetermined time.

  At this time, since the plurality of side baffles 36 and the convex baffles 46 are alternately arranged on the circumference, the laundry on the bottom is pushed up by the convex baffles 46 as the rotating drum 31 rotates. The laundry pushed upward is moved in the rotational direction by the side baffle 36 and then falls to the bottom. By repeating this, the laundry can be three-dimensionally rotated in the rotary drum 31 without causing the laundry to be entangled, so that the washing operation can be efficiently performed and the laundry can be dispersed.

  Further, since the laundry is lifted so as to be sandwiched between the side baffle 36 and the convex baffle 46, the laundry is not easily slid off from the side baffle 36 while the laundry is being lifted by the side baffle 36, and the rotating drum After the laundry is pushed up on the top, the laundry falls, so that the washing performance can be enhanced by the tapping effect.

  Further, the degree of convexity of the convex baffle toward the opening of the rotary drum 31 increases toward the center of the rotary drum 31, so that when the laundry reaches above the rotary drum 31 due to the rotation of the rotary drum 31. There is also an effect that the laundry is pushed and dispersed to the opening side (front side) of the rotary drum 31.

  After performing this washing operation for a predetermined time, the washing process is terminated and the first draining process is executed. Thereafter, in the rinsing process, the same operation as the washing process is performed, and the process proceeds to the next draining process and dehydrating process.

  As described above, by arranging the plurality of side baffles provided on the inner wall surface of the rotating drum and the plurality of convex baffles provided on the inner bottom surface alternately on the circumference, during the washing process or the rinsing process The laundry is less likely to get entangled and can be rotated three-dimensionally in the rotating drum to efficiently perform the stirring operation, improve the washing and rinsing performance, and disperse the laundry. In addition, this laundry dispersion can reduce vibration and noise during dehydration.

  As described above, the washing machine according to the present invention can efficiently perform washing and rinsing operations by dispersing the laundry in the rotating drum without being entangled. Applicable to usage.

31 Rotating drum 33 Water tank 34 Rotating axis (Rotating center axis)
35 Motor 36 Side baffle 39 Washing machine body 46 Convex baffle 56 Control means

Claims (1)

A rotating drum that is formed in a bottomed cylindrical shape and has a rotating shaft that is inclined downward or horizontally from the front side to the back side, a water tank that rotatably includes the rotating drum, a motor that rotationally drives the rotating drum, A washing machine main body elastically supported by a vibration-proof damper on the lower side of the water tank unit composed of the rotating drum, water tank, motor and the like, and control means for controlling each process such as washing, rinsing and dehydration The rotary drum is provided with a plurality of side baffles on the inner wall surface and a plurality of convex baffles on the inner bottom surface, and the drum type washing machine in which the side baffles and the convex baffles are alternately arranged on the circumference .