JP5488388B2 - 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).

  8 is a longitudinal sectional view of a conventional drum-type washing machine described in Patent Document 1, FIG. 9 is a perspective view of a water-receiving tank body of the washing machine, and FIG. 10 is a water-receiving tank cover of the washing machine. FIG.

  8, 9, and 10, in the main body 1, a water receiving tank 6 that has a bottomed cylindrical shape and includes a rear water receiving tank main body 2 and a front water receiving tank cover 3 is suspended. 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 6 is circulated, water is saved. However, 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 of about 5 to stick to the inner peripheral surface of the 5 by centrifugal force, and there was a quality problem that it was difficult to control the discharged water.

  In addition, since the discharge port is provided below the front part of the water receiving tub 6 and is discharged upward with respect to the inner surface of the rotating drum 5, the discharged water hardly hits the entire laundry, and the quality easily varies. There was the above problem.

  Furthermore, as a business measure, for example, it is possible to develop a model in which a circulation pump is employed and the discharge port 34 discharges into the rotating drum 5 with a stronger water flow than the current specification. Since the circulation channel was formed integrally with No. 6, there was a problem in manufacturing that the model development was difficult.

  The present invention solves the above-mentioned conventional problems, and controls the amount of water injected into the laundry, injects water into the entire laundry, suppresses variations in washing performance and rinsing performance, and improves the performance. The purpose is to prevent misassembly of parts during production of different models.

  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 And 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, and the nozzle is inserted into the water intake opening. In the worn state, a guide claw is formed through the water intake opening into the water tank.

  In this way, water can be sprayed over the entire laundry in the rotating drum from the top to improve the performance by suppressing variations in washing performance and rinsing performance. It is possible to prevent erroneous assembly of parts during model production.

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

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 Perspective view of the main part inside the water tank of the drum type washing machine Cross-sectional view of the main part of the front of the aquarium, showing examples of model development of the drum-type washing machine Plan view of the main part of the same model deployment example, looking at the front of the aquarium from the back side Perspective view of the main part inside the aquarium explaining prevention of misassembly of parts in the same model deployment example 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 multi-valve water supply valve 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 at the front of the water tank, and a front outer peripheral upper side of the water tank A substantially rectangular water intake opening formed in a circumferentially wide shape, and a nozzle attached to the water intake opening, wherein the nozzle is inserted into the water intake opening from the water intake opening. By forming a guide claw peeking into the inside of the aquarium, it is possible to improve the performance by suppressing variation in cleaning performance and rinsing performance by spraying water from the top to the entire laundry in the rotating drum. , Wrong assembly when producing different models It is possible to prevent.

  According to a second invention, in the first invention, the water tank has a specification capable of installing a nozzle formed with a guide claw and a specification capable of not installing a nozzle formed with a guide claw, and has a nozzle formed with a guide claw. By adopting a configuration in which the nozzle cannot be assembled to a water tank of a specification that cannot be installed, it is possible to prevent erroneous assembly by the guide claw when producing a different model.

  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 water intake opening 78 has a nested structure in the mold of the water tank 62, and can be closed by changing the nested structure. 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. When it comes to clothes, it serves to protect the circular aquarium opening 92 formed at the aquarium opening end 93 provided in the front of the aquarium 62, and when the clothing contacts the annular guide plate 83, Since the surface of the annular guide plate 83 may be damaged by the rotational frictional heat, which may 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 formed of SPS resin (syndiotack polystyrene resin) that is also excellent in moldability.

  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.

  2 is an exploded perspective view of the main part of the shower nozzle mounting portion, FIG. 3 is a cross-sectional view of the main part, and FIG. 4 is a perspective view of the main part inside the front of the water tank.

  In FIG. 2, the shower nozzle 79 is inserted into a water intake opening 78 formed on the front outer periphery of the front of the water tank 62, using guide claws 80 a and 80 b having substantially inverted U shapes formed on the inner side (water tank 62 side) as a guide. After the insertion, the screws 81a and 81b are used for fixing, and the sealing material 82 is used for water sealing.

  A pipe portion 88 that connects 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 claw central portion 89 that connects the inner guide claws 80a and 80b. It communicates with an injection port portion 91 having an injection port 90 that is horizontally long with respect to the direction.

  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 92 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.

  FIG. 4 is a perspective view of the main part of the shower nozzle mounting portion on the inner side of the front part of the water tank. From the water intake opening 78 of the water tank 62, the guide claws 80a and 80b are inserted into the opening recess 96 inside the front part of the water tank 62. The guide claws 80a and 80b are peeping.

  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, 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, it is wide from the upper side with respect to the drum opening 95 of the rotating drum 63. When sprayed, water penetrates the entire laundry.

  FIG. 5 is a cross-sectional view of the main part of the front part of the aquarium of the model development example of the drum type washing machine according to the embodiment of the present invention, and FIG. 6 is a front view of the aquarium of the same model development example viewed from the back side. The principal part top view is shown.

  In FIG. 5, the specifications of the model development example of the drum-type washing machine according to the embodiment of the present invention are as follows: in the lower inside of the washing machine housing 61, on the downstream side of the drainage filter 70 and on the upstream side of the drainage valve 68. A circulation pump (not shown) is mounted, and a circulation system water channel 50 is connected from the circulation pump to the connection port 51 on the lower part of the front outer periphery of the water tank 62. The connection port 51 has a nesting structure for the mold of the water tank 62, and is opened by changing the nesting when the model is developed. Further, the drainage filter 70 also has a nested mold structure, and a connecting hose attachment portion to the circulation pump is configured by changing the nested structure. An annular lid 54 is provided on the outer peripheral side of the rear surface of the water tank opening end 93 at the front of the water tank 62 via sealants 52 and 53, and the circulation channel 50 is provided between the annular lid 54 and the water tank opening end 93. An annular channel 55 that communicates with each other is formed. A plurality of injection holes 56 are formed on the inner circumference of the annular lid 54. The annular guide plate 83 is assembled as it is as a common part.

  In the above specifications, when the circulation pump is operated in the washing process and the rinsing process, the washing water in the water tank 62 enters the annular flow channel 55 through the circulation pump 50 via the circulation pump, and the plurality of injection holes 56. Are ejected as indicated by a solid line arrow E along the ejection guide groove 57 formed in the annular guide plate 83 and having substantially the same shape as the curved portion 75 to the drum opening 95 at the front of the rotary drum 63. .

  In FIG. 6, the circulation channel 55 is a clockwise and counterclockwise channel sealed at the upper side, and washing water is ejected from the respective ejection holes 56. At this time, the formation direction of the injection hole 56 and the injection guide groove 57 is not a circular center O direction of the water tank 62 concentric with the rotary drum 63 but is shifted by a predetermined angle as shown by an arrow, and in that direction Washing water is injected. The annular lid 54 on the blocking side (upper side in FIG. 6) of the annular channel 55 is formed with an annular lid convex portion 58 that is convex toward the water tank opening end 93 side.

  FIG. 7 shows a perspective view of the main part inside the water tank for explaining the prevention of erroneous assembly of parts in the above model development example.

  In FIG. 7, when performing the model production of the above deployment example, the water tank 62 having the intake opening 78 is mistakenly brought into the production process, and the shower nozzle 79 unnecessary for the deployment model is provided in the intake opening 78. Next, when trying to assemble the annular lid 54, which is a correct part, the annular lid convex portion 58 formed on the annular lid 54 hits the guide claws 80a and 80b viewed through the opening concave portion 96. Since it cannot be assembled, it is immediately recognized that the assembly is wrong.

  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 from above onto the entire laundry in the rotating drum, so that variations in cleaning performance and rinsing performance can be suppressed and performance can be improved.

  Furthermore, by forming two guide claws on the shower nozzle and allowing them to look into the inside from the water intake opening of the water tank, it is possible to prevent erroneous assembly of parts during production of the developed different models.

  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 the shape of the shower nozzle, suppressing variation in washing performance and rinsing performance. Since it is possible to easily prevent parts from being mistakenly assembled during production of different models, 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)
80a, 80b Guide claws 83 Annular guide plate 92 Water tank opening 93 Water tank opening end 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 multi-valve configuration, 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 a circumferentially long side on the front outer periphery upper side of the water tank A substantially rectangular water intake opening and a nozzle attached to the water intake opening, and the nozzle is inserted into the water intake opening to guide the claw into the water tank from the water intake opening. is the formation the drum-type washing machine,
The aquarium has specifications that allow installation of nozzles with guide claws and specifications that do not allow installation of nozzles with guide claws. A drum-type washing machine having a configuration in which a component and the guide claw collide with each other and a correct component to be attached thereafter cannot be assembled .

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