JP2017209417A - Drum type washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum type washing machine capable of preventing the laundry from entering between a portion, in which a jetting port part is provided, in a front wall part of a water tub and a front wall part of a drum.SOLUTION: A drum type washing machine includes: a water tub having an annular front wall part on a front surface; a jetting port part provided at a rear surface of the front wall part of the water tub, for jetting water to the inside of the water tub; a drum provided rotatably in the water tub, and having an annular front wall part on the front surface; and a gap filling part provided at the water tub, for filling the gap between a portion, in which the jetting port part is provided, in the front wall part of the water tub and the front wall part of the drum.SELECTED DRAWING: Figure 3

Description

  Embodiments described herein relate generally to a drum-type washing machine.

  For example, as disclosed in Patent Document 1, a drum-type washing machine having an injection port portion that injects water into a water tank in a shower shape is considered.

JP 2009-273964 A

  This type of drum type washing machine has a structure in which a water tank cover is attached to the front surface of the water tank, and an annular front wall portion is provided on the front surface of the water tank. On the other hand, a balance ring is attached to the front surface of the drum, whereby an annular front wall is provided on the front surface of the drum. And the injection nozzle part is provided in the rear surface side of the front wall part of a water tank. Therefore, between the front wall part of a water tank and the front wall part of a drum, the clearance gap of the part in which the injection port part is provided is large compared with the other part. In addition, since the gap in the portion where the injection port portion is provided is larger than other portions, a step portion is formed at the boundary between the portion where the injection port portion is provided and the other portion. It has a configuration.

  In such a conventional configuration, for example, the laundry subjected to centrifugal force during a dehydration operation has a larger gap than other parts, that is, a gap in a part where the injection port is provided. It is easy to get in, and there is a possibility that the laundry that gets in may be caught by the injection port part or the step part and damaged.

  Then, the drum type washing machine which can prevent that a laundry enters between the part in which the injection opening part is provided among the front wall parts of a water tank and the front wall part of a drum is provided.

  The drum type washing machine according to the present embodiment includes a water tank, an injection port part, a drum, and a gap filling part. The aquarium has an annular front wall on the front surface. An injection port part is provided in the rear surface of the front wall part of the said water tank, and injects water in the said water tank. The drum is rotatably provided inside the water tank and has an annular front wall portion on the front surface. The gap filling portion is provided in the water tank, and fills a gap between a portion of the front wall portion of the water tank where the injection port portion is provided and the front wall portion of the drum.

1 is a longitudinal side view schematically showing a configuration example of a drum type washing machine according to a first embodiment. Rear view schematically showing a configuration example of the aquarium cover Longitudinal side view schematically showing a configuration example of an injection port portion and its peripheral portion The figure which shows schematically the example of a structure of the injection nozzle part in the conventional structure, and its peripheral part. The figure which shows schematically the example of a structure of the injection nozzle part in 1st Embodiment, and its peripheral part. Longitudinal side view schematically showing a configuration example of an injection port portion and its peripheral portion according to the second embodiment (part 1) Longitudinal side view schematically showing a configuration example of an injection port portion and its peripheral portion according to the second embodiment (No. 2) Vertical side view (part 3) schematically showing a configuration example of an injection port portion and its peripheral portion according to the second embodiment

Hereinafter, a plurality of embodiments according to a drum type washing machine will be described with reference to the drawings. In each embodiment, substantially the same elements are denoted by the same reference numerals, and description thereof is omitted.
(First embodiment)
A drum-type washing machine 10 illustrated in FIG. 1 includes a laundry doorway 12 for taking in and out laundry in the central portion of the front surface of a casing 11 constituting an outer shell. Hereinafter, the drum type washing machine 10 is simply referred to as a “washing machine 10”. The laundry entrance 12 is opened in a circular shape and is opened and closed by a circular door 13. Inside the housing 11, a bottomed cylindrical water tank 14 in which water is stored is provided. The water tank 14 is elastically supported by a pair of suspensions 15 provided on the left and right of the bottom of the water tank 14.

  A water tank cover 16 is provided on the front surface of the water tank 14. An opening 17 that opens in a circular shape is provided at the center of the water tank cover 16. An aquarium cover 16 having an opening 17 at the center forms an annular front wall on the front surface of the aquarium 14. An injection port 18 is provided on the rear surface of the water tank cover 16. The injection port portion 18 is formed by attaching a water injection cover 19 to the rear surface of the water tank cover 16. The water injection cover 19 is fixed to the rear surface of the water tank cover 16 by, for example, welding.

  A drum 20 is rotatably provided inside the water tank 14. The rotation axis of the drum 20 is inclined so that the rear surface side is lower than the front surface side along the front-rear direction of the washing machine 10, that is, the depth direction. The drum 20 is rotated by a drive motor 21 provided on the rear surface of the water tank 14. A balance ring 22 is provided on the front surface of the drum 20. An opening 23 that opens in a circular shape is provided at the center of the balance ring 22. The balance ring 22 having the opening 23 in the center portion forms an annular front wall portion on the front surface of the drum 20.

  The washing machine 10 includes a water supply mechanism 30, a drainage mechanism 31, and a circulation mechanism 32. The water supply mechanism 30 includes a water supply valve 30a, a water supply case 30b, and the like on a water supply path extending from the water supply port 11a of the housing 11 to the water supply port 14a of the water tank 14, and a washing process for washing the laundry in the drum 20 and Water is supplied into the aquarium 14 in the rinsing process of the laundry. The water supply case 30b has a detergent input part (not shown).

  The drainage mechanism 31 includes a drainage valve 31a and the like on a drainage path extending from the drainage port 14b of the water tank 14 to the outside of the machine, and discharges the water in the water tank 14 to the outside of the machine during the drainage process. The circulation mechanism 32 includes a circulation pump 32a and the like on the drainage path extending from the drainage port 14b of the water tank 14 to the injection port 18, and sucks and pumps the water in the water tank 14 during the washing process and the rinsing process. Then, the water is injected into the water tank 14 from the injection port 18 in a shower shape. That is, the circulation mechanism part 32 injects into the water tank 14 in the shape of a shower, circulating through the water tank 14.

  Next, the structure of the injection port part 18 and its peripheral part is demonstrated in detail. As illustrated in FIG. 2, a plurality of, in this case, two injection port portions 18 are provided on the rear surface of the water tank cover 16. The two injection port portions 18 are provided above the center line L1 that bisects the water tank cover 16 in the vertical direction. The two spray ports 18 are provided substantially symmetrically on the left and right with a center line L2 that bisects the water tank cover 16 in the left-right direction, and are directed toward the center of the water tank cover 16, respectively. The injection port 18 is connected to a water channel 35 that constitutes a part of the circulation mechanism 32. The water channel portion 35 extends in an arc shape so as to pass through one side portion and the upper portion of the opening portion 17 along the opening shape of the opening portion 17 of the water tank cover 16. The water circulated by the circulation mechanism 32 is jetted into the water tank 14 from the two jet ports 18 through the water channel 35 in a shower shape.

  As illustrated in FIG. 3, the distal end portion of the injection port portion 18 is smoothly inclined toward the inside of the water tank 14, in this case, the rear lower portion. Therefore, the water jetted from the jet port 18 is directed to the lower rear part inside the water tank 14 while being guided by the shape of the tip of the jet port 18. Further, a gap filling portion 40 is provided in a portion of the front wall portion of the water tank 14 constituted by the water tank cover 16 where the injection port portion 18 is provided. As illustrated in FIG. 4, in the conventional configuration, a gap between the portion of the front wall portion of the water tank 14 configured by the water tank cover 16 and the balance ring 22 of the drum 20 where the injection port portion 18 is provided. G1 is larger than the gap G2 in other portions. And since the clearance gap G1 is larger than the clearance gap G2, the step part D hollowed in the injection outlet part 18 side is formed in the part in which the injection outlet part 18 is provided among the front wall parts of the water tank 14. Has been.

  The gap filling portion 40 is provided so as to fill the gap G1 that is larger than the gap G2. That is, as illustrated in FIG. 5, the gap filling portion 40 is provided so as to be bridged over a step portion D formed in a portion of the front wall portion of the water tank 14 where the injection port portion 18 is provided. Thus, the step portion D is not a step shape recessed toward the injection port portion 18 side but is a substantially rectangular hole portion 50. The size and shape of the hole 50 may be adjusted as appropriate so as not to interfere with water sprayed from the spray port 18 into the water tank 14.

  Moreover, as illustrated in FIG. 3, the gap filling portion 40 has a configuration in which a cross section orthogonal to the circumferential direction of the water tank cover 16 is rectangular as a whole, but has an inclined portion in a part thereof. . In this case, the gap filling portion 40 has an inclined surface 40a in which the front side portion is inclined from the front upper portion toward the rear lower portion of the washing machine 10, and the size in the front-rear direction decreases as it goes downward. . The inclination angle of the inclined surface 40a of the gap filling portion 40 may be adjusted as appropriate so as not to interfere with water injected from the injection port portion 18 into the water tank 14.

  Further, the gap filling part 40 is configured to be separated from the injection port part 18. Further, the gap filling portion 40 is provided integrally with the water tank cover 16. That is, the gap filling portion 40 is provided as a part of the water tank cover 16. Note that the gap filling portion 40 may be constituted by a separate component from the water tank cover 16.

  The gap filling portion 40 partially fills the gap between the portion of the front wall portion of the water tank 14 where the injection port 18 is provided and the balance ring 22 of the drum 20, that is, the gap G <b> 1 of the conventional configuration. As described above, the gap filling portion 40 fills the gap G1 existing in the conventional configuration, so that the washing machine 10 can move the front wall portion of the water tank 14 constituted by the water tank cover 16 and the front of the drum 20 constituted by the balance ring 22. The gap between the wall portions is uniform over the entire circumference of both front wall portions, that is, approximately the same or completely the same size.

  According to the washing machine 10 according to the present embodiment, the front wall of the drum 20 constituted by the portion of the front wall portion of the water tank 14 constituted by the water tank cover 16 and the balance ring 22 provided with the injection port portion 18. The gap between the parts is partially filled with the gap filling part 40. According to this configuration, the gap filling portion 40 prevents the laundry from entering between the front wall portion of the water tank 14 and the front wall portion of the drum 20 provided with the injection port portion 18. And damage to the laundry can be suppressed.

  Moreover, according to the washing machine 10, even if it is the structure which has the some injection nozzle part 18, the clearance gap between the front wall part of the water tank 14 and the front wall part of the drum 20 is made into all these front wall parts. A uniform structure can be realized over the circumference. Therefore, it is possible to suppress the entry of the laundry between the front wall portion of the water tank 14 and the front wall portion of the drum 20 while improving the cleaning performance and the rinsing performance by providing the plurality of injection port portions 18. Can do.

  Further, according to the washing machine 10, the gap filling portion 40 is separated from the injection port portion 18, and as a result, as illustrated in FIG. 3, a certain amount of space is provided between the injection port portion 18 and the gap filling portion 40. The gaps G3 and G4 are secured. According to this configuration, even if the laundry enters beyond the gap filling portion 40, the laundry is less likely to come into contact with the distal end portion of the ejection port portion 18 because the gaps G3 and G4 exist. , Can reduce laundry damage. Further, the injection port portion 18 is configured by attaching a water injection cover 19 to the rear surface of the water tank cover 16. Therefore, according to the configuration in which the gap filling portion 40 that is a part of the water tank cover 16 and the tip of the water injection cover 19 are separated, the water injection cover 19 can be fixed to the rear surface of the water tank cover 16 by vibration welding. For example, the injection port portion 18 can be formed without requiring parts such as screws and packing.

(Second Embodiment)
In the present embodiment, several configuration examples in which the gap filling portion is in contact with the injection port portion 18 will be described. In the water injection cover 59 illustrated in FIG. 6, the tip end portion 59a that forms the injection port portion 18 extends further to the tip side than the water injection cover 19 illustrated in the first embodiment, and reaches the gap filling portion 40. Yes. According to this configuration, a smoothly inclined continuous surface including the upper surface of the tip portion 59 a of the water injection cover 19 and the upper surface of the gap filling portion 40 is formed in the portion on the water injection cover 59 side in the tip portion of the injection port portion 18. Is done. For this reason, even if the laundry enters beyond the gap filling portion 40, the laundry is less likely to be caught on the front end portion of the ejection port portion 18, and damage to the laundry can be suppressed.

  Further, in the water injection cover 69 illustrated in FIG. 7, the tip portion 69a that forms the injection port portion 18 extends further to the tip side than the water injection cover 19 illustrated in the first embodiment, and the gap filling portion 40 is formed. It has entered the hole 50 to be. According to this configuration, the front end portion 69 a of the water injection cover 69 is covered by the gap filling portion 40 in the portion on the water injection cover 69 side in the front end portion of the ejection port portion 18. For this reason, even if the laundry enters beyond the gap filling portion 40, the laundry is less likely to be caught on the front end portion of the ejection port portion 18, and damage to the laundry can be suppressed. Further, the tip end portion 69 a of the water injection cover 69, that is, the tip end portion of the injection port portion 18 faces the inside of the water tank 14 without being blocked by the gap filling portion 40. Therefore, the direction of water sprayed from the spray port 18 is not changed by the gap filling unit 40, and therefore water is sprayed to an appropriate part in the water tank 14, that is, the part directed by the spray port 18. can do.

  In addition, the water injection cover 79 illustrated in FIG. 8 has a distal end portion 79a that forms the injection port 18 extending further toward the distal end than the water injection cover 19 illustrated in the first embodiment, and is integrated with the gap filling portion 40. It has become a structure. According to this structure, the continuous surface which inclines smoothly is formed in the part at the side of the water injection cover 79 among the front-end | tip parts of the injection port part 18. As shown in FIG. Therefore, even if the laundry enters beyond the tip portion 79a of the water injection cover 79, that is, the portion including the gap filling portion 40 described above, damage to the laundry can be suppressed.

  According to the drum type washing machine according to the plurality of embodiments described above, the gap between the front wall portion of the water tank and the front wall portion of the drum is formed by the gap filling portion. Buried. According to this configuration, the gap filling portion can prevent the laundry from entering between the portion of the front wall portion of the water tank where the injection port portion is provided and the front wall portion of the drum.

  This embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 10 is a drum-type washing machine, 14 is a water tank, 16 is a water tank cover (front wall of the water tank), 18 is an injection port, 20 is a drum, 22 is a balance ring (front wall of the drum), and 40 is The gap filling part is shown.

Claims (4)

A water tank having an annular front wall on the front surface;
An injection port provided on the rear surface of the front wall portion of the water tank, for injecting water into the water tank,
A drum rotatably provided inside the water tank and having an annular front wall on the front surface;
A gap filling portion that is provided in the water tank and fills a gap between a portion of the front wall portion of the water tank where the injection port portion is provided and a front wall portion of the drum;
A drum-type washing machine comprising:   The gap filling portion fills a gap between a portion of the front wall portion of the water tank where the injection port portion is provided and the front wall portion of the drum, whereby the front wall portion of the water tank and the drum The drum-type washing machine according to claim 1, wherein the gap between the front wall portions of the drum is uniform over the entire circumference of both front wall portions.   The drum-type washing machine according to claim 1 or 2, wherein the gap filling portion is separated from the injection port portion.   The drum-type washing machine according to claim 1 or 2, wherein the gap filling portion is in contact with the injection port portion.

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