JP5447333B2 - Drum washing machine - Google Patents

Description

  The present invention relates to a drum-type washing machine for washing, rinsing, and dewatering in a rotating drum that is rotatably disposed in a water tank.

  Conventionally, in this type of drum-type washing machine, a configuration has been proposed in which the washing water is circulated and poured into the laundry in the rotating drum in the rinsing process to improve the rinsing performance and save the water used (for example, Patent Document 1).

  4 is a longitudinal sectional view of a conventional drum-type washing machine described in Patent Document 1, FIG. 5 is a perspective view of a water-receiving tank body of the washing machine, and FIG. 6 is a water-receiving tank cover of the washing machine. FIG.

  4, 5, and 6, the main body 1 has a bottomed cylindrical water receiving tank 6 including a rear water receiving tank main body 2 and a front water receiving tank cover 3. The structure (not shown) is supported in a state of being inclined downward toward the back side, and the rotating drum 5 is rotatably supported in the water receiving tank 6. The rotating drum 5 is rotationally driven by a driving motor 7 provided on the outer bottom of the water receiving tank 6.

  The water receiving tank main body 2 has a water receiving tank main body opening 2a, a water receiving tank main body 2b, and a water receiving tank main body bottom 2c, and a boundary between the water receiving tank main body 2b and the water receiving tank main body bottom 2c. A water receiving tank main body bottom groove 2d formed in a substantially concave shape in the vicinity of the water receiving tank main body bottom 2c is provided in an arc shape substantially concentric with the water receiving tank main body trunk 2b. A water receiving tank main body groove lid 23 having a shape corresponding to the water receiving tank main body bottom groove 2d is fixed to the water receiving tank main body bottom groove 2d from the inner surface side. A first circulation water channel 22 is formed by the body groove lid 23.

  The water intake 20 which is one end of the first circulation water channel 22 communicates with the guide recess 21 whose bottom surface gradually changes from the bottom surface of the water receiving tank main body bottom groove 2d to the inner surface of the water receiving tank main body bottom 2c. Further, the water receiving tank main body 2 has a pipe-like second circulation water channel 26 communicating from the water receiving tank main body opening 2a to the water receiving tank main body bottom 2c outside the water receiving tank main body 2b. The first circulation water channel 22 communicates with the first circulation water channel 22 and is integrally formed.

  And the 3rd circulating water channel 27 is connected to the 2nd circulating water channel 26, and the 3rd circulating water channel 27 is the water receiving tank cover front surface groove part formed in the inner surface of the water receiving tank cover front part 3b at substantially concave shape. 4e and a water receiving tub cover groove cover 29 are connected to each other, and a discharge port 34 for discharging washing water is provided near the tip of the water receiving tub cover groove cover 29. Is provided.

  With the above configuration, during the rinsing process, the drive motor 7 rotates the laundry at a rotational speed (for example, 80 r / m) at which the laundry is stuck to the inner peripheral surface of the rotating drum 5 by centrifugal force. Is swirled by the action of pump blades of ribs (not shown) provided on the outer bottom of the rotating drum 5, and rotates around the boundary between the water receiving tank main body 2b and the water receiving tank main body bottom 2c, thereby guiding the recess 21. To the intake port 20, passes through the first to fourth circulation channels 22, 26, 27, and 28, and is discharged from the discharge port 34 into the rotary drum 5 vigorously. Then, the discharged water is poured into the laundry every time the rotary drum 5 rotates, and the washing water by centrifugal force permeates through the laundry, thereby performing a so-called shower rinsing in which the detergent is removed.

JP 2007-105212 A

  However, in the conventional configuration, since the washing water in the water receiving tub is circulated, water is saved, but the quantity and quality of the laundry are various, and all the various laundry items are stored in the rotating drum. It was difficult to set a rotation speed that would stick to the inner peripheral surface by centrifugal force, and there was a quality problem that it was difficult to control the discharged water.

  Moreover, since the discharge port is provided on the lower side of the front part of the water receiving tub and is discharged upward with respect to the inner surface of the rotating drum, the discharged water hardly hits the entire laundry, and the performance is likely to vary. There was a problem.

  An object of the present invention is to solve the above-described conventional problems, and to inject water into the entire laundry to suppress variations in washing performance and rinsing performance.

  In order to solve the above-described conventional problems, a drum type washing machine of the present invention includes a washing machine housing, a rotating drum having an opening formed in front of the washing machine housing, and a water tub that rotatably includes the rotating drum. , A motor for rotationally driving the rotating drum, a water supply valve having a plurality of valves capable of opening and closing a plurality of water channels, and a circular water tank opening formed on the inner peripheral side of the water tank opening end provided at the front of the water tank An annular guide plate provided on the inner peripheral side of the front portion of the water tub and formed with a curved portion that curves in the front-rear direction of the washing machine casing, and is formed in an oblong shape in the circumferential direction on the front outer peripheral upper side of the water tub. A rectangular water intake opening, and a nozzle attached to the water intake opening, the nozzle communicates with one water passage of the water supply valve, and has a horizontally elongated substantially rectangular injection port in the circumferential direction of the water tank. And forming an injection port portion having an inner surface of the injection port portion, A curved surface portion curved in the left-right direction of the washing machine casing is formed, and water supplied from the water supply valve is passed along the curved surface portion and the curved portion, and is injected into the rotating drum. It is what I did.

  Accordingly, water can be widely sprayed from above onto the entire laundry in the rotating drum, whereby variations in cleaning performance and rinsing performance can be suppressed and performance can be improved.

  The drum type washing machine of the present invention can improve the performance by suppressing the variation in the washing performance and the rinsing performance by spraying water uniformly from above onto the entire laundry in the rotating drum.

The longitudinal cross-sectional view of the drum type washing machine which concerns on embodiment of this invention The exploded perspective view of the main part of the drum type washing machine Cross section of the main part of the drum type washing machine Vertical section of a conventional drum-type washing machine Perspective view of the water receiving tank body of the drum type washing machine Perspective view of water receiving tank cover of the drum type washing machine

  According to a first aspect of the present invention, there is provided a washing machine housing, a rotating drum having an opening formed in front of the washing machine casing, a water tank that rotatably includes the rotating drum, a motor that rotationally drives the rotating drum, A water supply valve having a multi-valve structure capable of opening and closing the water channel, a circular water tank opening formed on the inner peripheral side of the water tank opening end provided in the front part of the water tank, and a front inner peripheral side of the water tank An annular guide plate formed with a curved portion that curves in the front-rear direction of the washing machine casing, a substantially rectangular water intake opening formed on the front outer periphery upper side of the water tank, and a substantially rectangular shape, and the water intake opening The nozzle is connected to one water channel of the water supply valve, and forms a spray port portion having a horizontally elongated spray port in the circumferential direction of the water tank, and the spray port On the inner surface of the part, there is a curved part that curves in the left-right direction of the washing machine casing. The water supplied from the water supply valve is passed along the curved surface portion and the curved portion and injected into the rotating drum, so that the water is distributed to the entire laundry in the rotating drum. By widely spraying from above, it is possible to suppress variations in cleaning performance and rinsing performance and improve performance.

  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.

  As shown in FIG. 1, a water tank 62 is swingably disposed inside a washing machine housing 61, and a rotating drum 63 is rotatably disposed in the water tank 62. It is rotationally driven by a motor 64 attached to the back of the machine from the outside.

  The drum type washing machine of the present invention automatically controls at least the washing process by automatically controlling the motor 64, the water supply system 65, the drainage system 66, the drying system (not shown), etc. shown in FIG. A so-called drum-type washing machine having functions of performing a rinsing process, a dehydrating process, and a drying process is configured. However, the drying system can be omitted.

  The water supply system 65 is provided with a water supply valve 67 having a multi-valve configuration in which two or more water channels can be opened and closed, and one water channel is opened and closed via a water supply hose 73 as shown by a solid arrow A in a water tank 62. Water can be supplied to the interior in a timely manner, and the detergent in the detergent container 77 can be poured into the water tank 62 together with the washing water in a timely manner using the water supply. Further, one water channel is poured into the rotating drum 63 from the front of the water tank 62 through the nozzle hose 74 as indicated by a solid arrow D. The water injection through the nozzle hose 74 will be described later.

  The drainage system 66 passes through a drainage pipe 69 connected to the lower part of the water tank 62 as indicated by a one-dot chain line B when necessary at the end of the washing process, the end of the rinsing process, etc. by opening and closing the drain valve 68. After being collected and passing through a drainage filter 70 that can be removed from the outside, it can be drained outside the machine.

  The rotating drum 63 is directly connected to a motor 64 fixed to the outer bottom portion of the water tank 62 by a rotating shaft 71 arranged so as to be inclined substantially horizontally or downwardly from the horizontal direction. Further, the clothes put in the rotating drum 63 are washed with stirring.

  An annular guide plate 83 having a curved portion 75 formed on the back surface side is disposed on the inner peripheral side of the front part of the water tank 62, and a substantially rectangular shape that is horizontally long in the circumferential direction on the front outer periphery of the water tank 62. The water intake opening 78 is opened, a shower nozzle (nozzle) 79 is attached to the water intake opening 78, and the nozzle hose 74 is connected to the outer side. Then, the water passed through the nozzle hose 74 from the water supply valve 67 is sprayed from above to the drum opening 95 at the front of the rotating drum 63 along the curved portion 75. The vicinity of the shower nozzle 79 attachment portion will be described in detail with reference to FIG.

  The annular guide plate 83 is provided on the inner peripheral side of the front portion of the water tank 62 at the same time as a guide for guiding the sprayed water in a predetermined direction and shape, so that the clothes in the rotating drum 63 are ejected. It serves to protect clothing and the circular water tank opening 92 formed at the water tank opening end 93 provided at the front of the water tank 62 when the clothes come into contact with the annular guide plate 83. Since the surface of the annular guide plate 83 may be damaged by frictional heat, which may also damage the clothing, the annular guide plate 83 has a high melting point and excellent heat resistance in order to prevent clothing damage. It is made of SPS resin (syndiotack polystyrene resin) that is also excellent in properties.

  Further, the door 72 serves as an anti-vibration and water seal that connects between a housing opening (not shown) on the front surface of the washing machine housing 61 and a flange 84 formed at the water tank opening end 93 at the front of the water tank 62. It is sealed through an anti-vibration rubber 85 and can be opened.

  Selection of the mode such as the driving course and various functions is performed by inputting from the operation panel 86 provided at the upper front of the washing machine housing 61, and the control means 87 displays the display means on the operation panel 86 based on the input information (FIG. When the operation start is set by an input setting means (not shown) on the operation panel 86, a water level detecting means (not shown) for detecting the water level in the water tank 62 is displayed. ) Etc. are input to control the operation of the motor 64, drain valve 68, water supply valve 67, etc., and operations such as washing, rinsing, dehydration, and drying processes are performed.

  FIG. 2 is an exploded perspective view of the main part of the shower nozzle mounting part, and FIG. 3 is a cross-sectional view of the main part.

  In FIG. 2, the shower nozzle 79 can be attached to the water intake opening 78 formed on the front outer periphery of the front of the water tank 62 with the guide rib part 80 formed on the inner side (water tank 62 side) as a guide. It is fixed with screws 81a and 81b and sealed with a sealing material 82.

  A pipe portion 88 for connecting the nozzle hose 74 is formed outside the shower nozzle 79 (on the side opposite to the water tank 62), and is formed in the guide rib central portion 89 on the inner side and is a horizontally long jet port 90 with respect to the circumferential direction of the water tank 62. It communicates with the injection port portion 91 having

  FIG. 3 is a cross-sectional view of the main part when the shower nozzle mounting portion is viewed from the bottom surface side of the water tank 62. In FIG. 3, the inner diameter portion of the pipe portion 88 is formed on the inner surface of the injection port portion 91 formed in the shower nozzle 79. An arcuate curved surface portion 94 that is continuous with the surface is formed.

  The water passed from the water supply valve 67 to the shower nozzle 79 through the nozzle hose 74 is rectified along the curved surface portion 94, and the injection port 90 is horizontally long in the circumferential direction of the water tank 62. In addition, along the opening recess 96 formed on the inner peripheral side of the water intake opening 78 and the curved portion 75 on the back surface side of the annular guide plate 83 which is a surface continuous with the opening recess 96, the front of the rotary drum 63 is viewed from above. A wide range of sprays are applied to the drum opening 95.

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

  In the washing process, the detergent and the washing water are introduced into the water tank 62 from the water supply valve 67 through the water supply hose 73 and the detergent container 77, and the rotating drum 63 rotates together with the laundry for a predetermined time to perform the washing operation. After that, the other valve of the water supply valve 67 is opened and sprayed to the laundry in the rotating rotary drum 63 from the spray port 90 of the shower nozzle 79 via the nozzle hose 74, and the detergent easily penetrates into the laundry. The washing operation proceeds.

  Further, in the rinsing process, water is supplied from the water supply valve 67 into the water tank 62 through the water supply hose 73, the rotating drum 63 rotates together with the laundry for a predetermined time, and the rinsing operation starts. The other valve of the water supply valve 67 is opened and sprayed to the laundry in the rotating rotating drum 63 from the spray port 90 of the shower nozzle 79 through the nozzle hose 74, and the detergent component is removed from the laundry to rinse. The operation proceeds.

  At this time, as described above, the water passed from the water supply valve 67 through the nozzle hose 74 is sprayed from above to the drum opening 95 at the front of the rotary drum 63 along the curved portion 75. Due to the curved portion 75, water is sprayed from the bottom of the side wall of the rotating drum 63 toward the lower side of the back wall of the rotating drum 63 around the vicinity of the lowest point of the rotating drum 63 where a large amount of laundry is offset. That is, water is sprayed in the front-rear direction of the washing machine casing 61, and water is widely sprayed over the entire laundry.

  Further, since the injection port 90 is horizontally long in the circumferential direction of the water tank 62, that is, in the circumferential direction of the rotating drum 63, the injection port 90 is widely sprayed from above to the drum opening 95 of the rotating drum 63, and is washed. Water will permeate the whole thing.

  As described above, in the present embodiment, the shower nozzle attached to the intake opening formed on the front outer periphery upper side of the water tank, and the annular guide plate covering the water tank opening formed on the front inner periphery of the water tank. Depending on the shape, water from the water supply valve can be widely sprayed in the front-rear direction and the left-right direction of the washing machine housing, and can be widely sprayed from above onto the entire laundry in the rotating drum. Variations in rinsing performance can be suppressed and performance can be improved.

  As described above, the drum type washing / drying machine according to the present invention can improve the performance by spraying a wide range of water on the entire laundry by suppressing the variation in washing performance and rinsing performance due to the shape of the shower nozzle. It can be applied to other uses such as washing machines.

61 Washing machine housing 62 Water tank 63 Rotating drum 64 Motor 67 Water supply valve 74 Nozzle hose 75 Curved portion 78 Water intake opening 79 Shower nozzle (nozzle)
83 Annular guide plate 88 Pipe portion 90 Injecting port 91 Injecting port portion 92 Water tank opening 93 Water tank opening end 94 Curved surface 95 Drum opening

Claims (1)

A washing machine housing, a rotating drum having an opening formed in front of the washing machine casing, a water tank that rotatably includes the rotating drum, a motor that rotationally drives the rotating drum, and a plurality of water channels that can be opened and closed. A water supply valve having a plurality of valves, a circular water tank opening formed on the inner peripheral side of the water tank opening end provided at the front of the water tank, and the washing machine casing provided on the front inner peripheral side of the water tank An annular guide plate formed with a curved portion that curves in the front-rear direction, a substantially rectangular water intake opening formed in a circumferentially long side on the front outer periphery upper side of the water tank, and a nozzle attached to the water intake opening The nozzle communicates with one water passage of the water supply valve, forms an injection port portion having a horizontally elongated injection port in the circumferential direction of the water tank, and on the inner surface of the injection port portion, Forming a curved surface portion curved in the left-right direction of the washing machine housing; Water that is water from the valve, the curved surface portion, and the is passed through along the curved portion, the drum-type washing machine that is injected into the rotating the drum.

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