JP2019024526A - Washing machine - Google Patents

Abstract

To provide a washing machine comprising a filter in a circulation water path for circulating water in a tub, which can sufficiently utilize a foreign matter capturing function by the filter in operation with a high necessity of the filter and which on the other hand can eliminate an influence of the filter in operation with a low necessity of the filter to sufficiently exert a cleaning effect by circulation water.SOLUTION: A washing machine comprises: a water tub; a rotary tub that is provided in the water tub so as to be rotatable; a circulation water path that is provided on an inner peripheral surface of the rotary tub for circulating water in the water tub; and an attachment mounting part which is provided in a part of the circulation water path and to which the attachment is detachably attached. On the attachment mounting part, it is possible to attach a filter attachment having a filter and it is also possible to attach an attachment of a kind differing from the filter attachment instead of the filter attachment.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to a washing machine.

  For example, as disclosed in Patent Document 1, in a washing machine including a circulation channel that circulates water in a tub by rotating a pulsator, a filter for capturing foreign matter such as yarn waste in the circulation channel The structure provided with is considered.

JP 2014-230554 A

  By the way, in the structure provided with the filter in the circulating water channel, the flow path resistance is increased by the filter, so there is a risk that the momentum of the circulating water returned from the circulating water channel into the tank and the discharge amount per unit time may be reduced. In such a case, the cleaning effect by the circulating water cannot be sufficiently exhibited. On the other hand, for example, in a dry operation for washing fashionable clothes, the amount of laundry to be washed at one time is often small, so that the amount of foreign matter such as lint generated is less than that in a normal washing operation. The need for is also reduced. In such an operation where the necessity of the filter is not high, if the momentum of the circulating water and the discharge amount per unit time decrease due to the flow path resistance by the filter, the influence of the filter having a low necessity for the cleaning effect by the circulating water is affected. The effect of washing with circulating water cannot be fully utilized.

  Therefore, regarding a washing machine having a filter in a circulation channel that circulates water in the tub, in the operation where the necessity of the filter is high, the foreign matter capturing function by the filter can be fully utilized, while the necessity of the filter is required. In an operation with low performance, a configuration is provided in which the influence of the filter is eliminated and the cleaning effect of the circulating water can be sufficiently exerted.

  The washing machine according to the present embodiment includes a water tub, a rotating tub, a circulating water channel, and an attachment mounting portion. The rotation tank is rotatably provided in the water tank. The circulating water channel is provided on the inner peripheral surface of the rotating tub and circulates the water in the water tub. An attachment attachment part is provided in a part of said circulation channel, and an attachment is attached so that attachment or detachment is possible. The attachment attachment part can attach a filter attachment having a filter, and can attach an attachment of a different type from the filter attachment instead of the filter attachment.

Longitudinal side view schematically showing a configuration example of a washing machine according to the present embodiment The front view which shows roughly the structural example of the circulating water channel which concerns on 1st Embodiment. Longitudinal side view schematically showing a configuration example of a circulation channel according to the first embodiment The front view which shows roughly the structural example of the circulating water channel which concerns on 2nd Embodiment. Longitudinal side view schematically showing a configuration example of a circulating water channel according to the second embodiment Front view schematically showing a configuration example of a circulation channel according to the third embodiment (No. 1) Front view (part 2) schematically showing a configuration example of a circulating water channel according to the third embodiment Front view (part 1) schematically showing a configuration example of an attachment of a type different from the filter attachment according to the modified embodiment Front view schematically showing a configuration example of an attachment of a type different from the filter attachment according to the modified embodiment (part 2) Longitudinal side view schematically showing a configuration example of an attachment of a type different from the filter attachment according to the modified embodiment

  Hereinafter, a plurality of embodiments according to a washing machine will be described with reference to the drawings. In the plurality of embodiments, substantially the same elements are denoted by the same reference numerals, and the description thereof is omitted.

(First embodiment)
A washing machine 10 illustrated in FIG. 1 is a so-called vertical axis type washing machine in which a rotation center axis of a rotating tub extends in a vertical direction. The washing machine 10 includes a bottomed cylindrical water tank 12 having an open upper surface inside an outer box 11 constituting the outer shell. The water tank 12 is elastically supported by a known elastic suspension mechanism (not shown). A water supply mechanism (not shown) is provided inside the outer box 11. The water supply mechanism unit includes a water supply valve, a water injection case, and the like in the water supply path connected to the water tank 12, and supplies water to the inside of the water tank 12. A drainage mechanism (not shown) is provided inside the outer box 11. The drainage mechanism is provided with a drainage valve or the like in a drainage path extending from the bottom of the water tank 12 to the outside of the machine, and discharges the water in the water tank 12 to the outside of the machine.

  Inside the water tank 12, a bottomed cylindrical rotating tank 13 having an open upper surface is rotatably provided. The rotating tank 13 is an example of a tank in which clothes are stored. The rotating tub 13 is configured to rotate around a vertical axis, and serves as a washing tub for washing laundry, a washing tub for rinsing the laundry, and a dehydration tub for a dehydration step for dehydrating the laundry. It is also used. A pulsator 14 is rotatably provided at the bottom inside the rotary tank 13.

  A plurality of fins 14 a are provided on the back surface of the pulsator 14, that is, on the surface facing the bottom of the rotary tank 13. The fins 14a extend radially from the center of the pulsator 14 toward the peripheral end on the back surface of the pulsator 14. Further, the fin 14a extends linearly from the central portion of the pulsator 14 toward the peripheral end portion. In addition, the fin 14a may have a shape that is bent in a parabolic shape so as to be curved from the central portion of the pulsator 14 toward the peripheral end portion.

  A pump space 15 is formed between the upper surface of the bottom of the rotating tank 13 and the back surface of the pulsator 14. The fins 14 a are accommodated in the pump space 15. As will be described in detail later, the pump function is realized by rotating the fins 14 a in accordance with the rotation of the pulsator 14 in the pump space 15. That is, the pump space 15 functions as a so-called pump chamber.

  A drive mechanism 16 is provided at the center of the lower part of the water tank 12. The drive mechanism unit 16 includes a motor capable of variable speed drive, a clutch mechanism, a brake device, and the like. During the washing process or the rinsing process, the drive mechanism unit 16 transmits the rotational force of the motor to the pulsator 14 by the clutch mechanism. During the dehydration process, the drive mechanism unit 16 transmits the rotational force of the motor to the rotary tank 13 and the pulsator 14 at a high speed by the clutch mechanism.

  A circulation water channel 17 that extends linearly along the axial direction of the rotary tank 13, that is, the vertical direction, is provided on the inner peripheral surface of the rotary tank 13. A lower end portion of the circulation water channel 17 communicates with the pump space portion 15. When the pulsator 14 rotates, the fin 14 a rotates in the pump space 15 together with the pulsator 14. The water in the pump space portion 15 is pushed out to the outer peripheral side of the pump space portion 15, that is, the circulating water channel 17 side by the fins 14 a rotating in the pump space portion 15. The water in 15 rises through the circulation channel 17. That is, the washing machine 10 has a pump function that causes the water in the water tank 12 to rise through the circulation water channel 17 by rotating the fins 14 a in the pump space 15.

  An attachment mounting portion 20 is provided in the circulating water channel 17. In this case, the attachment mounting portion 20 is provided at a substantially central portion in the vertical direction of the circulating water channel 17, and is a long rectangular opening extending along the longitudinal direction of the circulating water channel 17. A plurality of types of attachments can be detachably attached to the attachment attachment portion 20. In this case, one attachment is attached to the attachment attaching portion 20 at the same time. That is, the washing machine 10 has a configuration in which the attachment attached to the attachment attachment portion 20 can be replaced.

  In FIG. 1, a filter attachment 31 is attached to the attachment attachment portion 20. The filter attachment 31 includes a mesh-shaped filter 31b in a long rectangular case 31a corresponding to the opening shape of the attachment mounting portion 20. A plurality of holes or slits through which water can pass are provided on the front and back surfaces of the case 31a.

  In the state where the filter attachment 31 is attached to the attachment attachment portion 20, when water rises in the circulation water channel 17 by the rotation of the pulsator 14, the rising water passes through the filter attachment 31 from the circulation water channel 17 and passes through the circulation water channel. 17, that is, returned to the rotary tank 13. At this time, foreign matter such as lint, for example, contained in the water passing through the filter attachment 31 is captured by the filter 31b. As a result, the water filtered by the filter 31b is returned into the rotary tank 13.

  Instead of the filter attachment 31 described above, an attachment of a type different from the filter attachment 31 can be attached to the attachment attachment portion 20. That is, as illustrated in FIGS. 2 and 3, a cover attachment 41 with a discharge port can be attached to the attachment attachment portion 20 instead of the filter attachment 31. The cover attachment 41 with a discharge port is mainly composed of a long rectangular case member 41 a corresponding to the opening shape of the attachment mounting portion 20, and is attached to the attachment mounting portion 20, whereby the attachment mounting portion 20. Block. Moreover, the opening part 41b opened toward the downward direction is provided in the lower part of the case member 41a.

  The cover attachment 41 with the discharge port mainly exhibits a function of closing the attachment mounting portion 20, and a discharge port 41c is provided in a part thereof. The discharge port 41c extends in a slit shape along the horizontal direction, and is provided on the upper side of the cover attachment 41 with a discharge port in the present embodiment.

  In the state where the cover attachment 41 with the discharge port is attached to the attachment attachment portion 20, when water rises in the circulation water channel 17 by the rotation of the pulsator 14, most of the rising water is indicated by an arrow W in FIG. 3. Flows into the cover attachment 41 with a discharge port from the opening 41b of the case member 41a in the circulating water channel 17. Of the water rising in the circulation channel 17, the water that has not flowed into the cover attachment 41 with discharge port rises as it is to the upper surface of the circulation channel 17 by raising the back side of the cover attachment 41 with discharge port. At this time, since an opening such as a discharge port is not provided above the circulating water channel 17, that is, above the cover attachment 41 with a discharge port, the water reaching the upper part in the circulating water channel 17 is caused by the pulsator 14. When the pump action is weakened, the back side of the cover attachment 41 with the discharge port is lowered and returned to the pump space 15.

  On the other hand, the water that has flowed into the cover attachment 41 with the discharge port rises as it is within the cover attachment 41 with the discharge port and is discharged from the discharge port 41c. Thereby, the water circulating in the circulating water channel 17 passes through the discharge port 41 c of the cover attachment 41 with the discharge port from the inside of the circulating water channel 17 and is returned to the outside of the circulating water channel 17, that is, into the rotary tank 13. At this time, since the filter is not provided in the cover attachment 41 with the discharge port, the water rising in the cover attachment 41 with the discharge port does not receive the channel resistance due to the filter in the process of the rise, and the discharge port It is discharged into the rotary tank 13 from 41c. In the present embodiment, the discharge port 41 c is provided on the upper side of the cover attachment 41 with a discharge port, in other words, on the upper side of the circulation water channel 17. Therefore, the water that rises in the circulating water channel 17 and is discharged from the discharge port 41 c is supplied to the laundry in the rotating tub 13 so as to descend from above.

  According to the washing machine 10 according to the present embodiment, when performing an operation in which the necessity of the filter 31b is relatively high, such as a normal washing operation in which a large amount of laundry is assumed to be washed at a time, the attachment is performed. By attaching the filter attachment 31 to the attachment portion 20, the laundry can be washed while circulating the circulating water from which foreign matter such as lint has been removed by the filter 31b, and the foreign matter capturing function by the filter 31b can be fully utilized. be able to.

  On the other hand, when performing an operation in which the necessity of the filter 31b is relatively low, such as a dry operation, in which a small amount of laundry is often washed, instead of the filter attachment 31, a cover attachment with a discharge port is attached to the attachment mounting portion 20. By attaching 41, the circulating water can be circulated without being affected by the increase in flow path resistance by the filter 31b, and the cleaning effect by the circulating water can be sufficiently exhibited.

  As mentioned above, according to the washing machine 10 which concerns on this embodiment, the aspect suitable for the driving | running to perform by replacing | exchanging the attachment attached to the attachment attachment part 20 suitably according to the necessity of the filter 31b in the driving | running to perform. Can wash the laundry.

  Moreover, according to this embodiment, it replaces with the filter attachment 31 at the attachment attachment part 20, and the cover attachment 41 with a discharge outlet is attached so that attachment or detachment is possible. According to this configuration, in the state where the cover attachment 41 with the discharge port is attached to the attachment attachment portion 20, the attachment attachment portion 20 is blocked by the cover attachment 41 with the discharge port and does not have a filter in the circulation water channel 17. Can be built. According to such a circulating water channel 17, the circulating water can be vigorously raised and returned to the rotary tank 13 without being affected by the channel resistance by the filter.

  Moreover, since the discharge attachment 41c is provided in the cover attachment 41 with a discharge outlet, the circulating water which rises vigorously in the circulation water channel 17 is discharged into the rotary tank 13 from the discharge outlet 41c while maintaining the momentum. It becomes like this. Therefore, the circulating water can be supplied to the laundry in the rotating tub 13 in a sufficient amount and with a sufficient momentum, and the cleaning effect by the circulating water can be further improved.

(Second Embodiment)
The circulating water channel 57 illustrated in FIG. 4 is provided on the inner peripheral surface of the rotating tub 13 similarly to the circulating water channel 17, and extends linearly along the axial direction of the rotating tub 13, that is, the vertical direction. The circulating water channel 57 includes an attachment mounting portion 20 as with the circulating water channel 17. Further, the circulating water channel 57 includes a discharge port 57 c in a portion other than the attachment mounting portion 20, in this case, in a portion above the attachment mounting portion 20. The discharge port 57c extends in a slit shape along the horizontal direction. In the present embodiment, the discharge port 57c is provided on the upper side of the circulating water channel 57, in this case, at least above the attachment mounting portion 20.

  In the present embodiment, a cover attachment 61 without a discharge port can be attached to the attachment attachment portion 20 instead of the filter attachment 31. The discharge port-less cover attachment 61 is formed of a long rectangular cover member corresponding to the opening shape of the attachment mounting portion 20, and closes the attachment mounting portion 20 by being attached to the attachment mounting portion 20. The discharge opening-less cover attachment 61 is composed of a single plate-like member. Further, the discharge port-less cover attachment 61 does not have a water-permeable opening such as a discharge port, and mainly exhibits a function of closing the attachment mounting portion 20.

  When water is raised in the circulating water channel 57 by the rotation of the pulsator 14 in the state where the cover attachment 61 without the discharge port is attached to the attachment attaching portion 20, as shown by an arrow W in FIG. In the water channel 57, the back surface side of the discharge outlet-less cover attachment 61 is raised and reaches the upper part in the circulating water channel 57. At this time, since the discharge port 57c is provided in the upper part of the circulating water channel 57, in this case, the upper part of the cover attachment 61 having no discharge port, the water reaching the upper part in the circulating water channel 57 has no discharge port. It passes through the discharge port 57 c above the cover attachment 61 and is returned to the outside of the circulating water channel 57, that is, into the rotary tank 13.

  At this time, since no filter is provided in the discharge port-less cover attachment 61 that exists below the discharge port 57c, the water that passes through the back side of the discharge port-less cover attachment 61 and rises to the discharge port 57c. Is discharged into the rotary tank 13 from the discharge port 57c without receiving flow path resistance due to the filter in the process of rising. In the present embodiment, the discharge port 57 c is provided on the upper side of the discharge port-less cover attachment 61, in other words, on the upper side of the circulation water channel 57. Therefore, the water that circulates in the circulation water channel 57 and is discharged from the discharge port 57c is supplied to the laundry in the rotating tub 13 so as to be dropped from above.

  According to this embodiment, instead of the filter attachment 31, the discharge port-less cover attachment 61 is detachably attached to the attachment attachment portion 20. According to this configuration, in a state in which the discharge port-less cover attachment 61 is attached to the attachment attachment portion 20, the attachment attachment portion 20 is blocked by the discharge port-less cover attachment 61, and the flow path does not have a filter in the circulation water channel 57. Can be built. According to such a circulating water channel 57, the circulating water can be vigorously raised and returned into the rotary tank 13 without being affected by the channel resistance by the filter.

  Further, since the discharge port 57c is provided above the cover attachment 61 without discharge port in the circulation water channel 57, the circulating water that rises vigorously in the circulation channel 57 from the discharge port 57c while maintaining the momentum. The liquid is discharged into the rotary tank 13. Therefore, the circulating water can be supplied to the laundry in the rotating tub 13 in a sufficient amount and with a sufficient momentum, and the washing performance with the circulating water can be further improved.

(Third embodiment)
As illustrated in FIGS. 6 and 7, the washing machine 10 may include a packing 71. In this case, the packing 71 is provided in the lower part of the filter attachment 31, the lower part of the cover attachment 41 with a discharge port, and the lower part of the cover attachment 61 without a discharge port, respectively. The packings 71 provided under the attachments 31, 41, 61 are respectively attached to the lower portions of the attachments 31, 41, 61 and the attachment attachment parts in a state where these attachments 31, 41, 61 are attached to the attachment attachment parts 20. The space between the lower part of 20 is closed watertight.

  According to this embodiment, the water rising in the circulating water channels 17 and 57 is between the attachments 31, 41, 61 and the attachment mounting part 20, in this case, in particular, the lower part of the attachments 31, 41, 61 and the attachment mounting. It is possible to avoid leaking out of the circulating water channels 17 and 57, that is, into the rotating tub 13 at the connection portion with the lower portion of the portion 20. Therefore, it is possible to prevent the momentum and amount of circulating water rising in the circulating water channels 17 and 57 from decreasing.

  The position where the packing 71 is provided can be changed as appropriate. For example, the packing 71 may also be provided on the side portion or upper portion of each attachment 31, 41, 61. Moreover, it is good also as a structure provided with packing not only in each attachment 31,41,61 but in the attachment attachment part 20. FIG. Moreover, it is good also as a structure provided with packing in the attachment attachment part 20 instead of each attachment 31,41,61. In this case, the position where the packing is provided is not limited to the lower side portion of the attachment mounting portion 20, and may be provided on both the left and right sides and the upper side portion, for example.

(Other embodiments)
The present embodiment is not limited to the above-described embodiments, and may be expanded or changed as follows, for example. That is, as illustrated in FIGS. 8 and 9, the attachment that is detachably attached to the attachment attachment portion 20 instead of the filter attachment 31 may be configured to include a plurality of discharge ports.

  In this case, the cover attachment 81 with a discharge port illustrated in FIG. 8 includes two discharge ports 81c. These discharge ports 81c are divided into an upper portion and a middle portion of the cover attachment 81 with discharge ports, and are configured in two stages. One flow path 81r is formed inside the cover attachment 81 with discharge port, and the two discharge ports 81c are both in communication with the flow channel 81r.

  According to this configuration example, the circulating water can be discharged from two places, the upper part and the middle part of the circulating water channel, and the cleaning effect by the circulating water can be improved by discharging the circulating water from different positions. . The number of discharge ports 81c is not limited to two, and may be a plurality of three or more. In addition, the shapes and sizes of the plurality of ejection ports 81c may be the same or different from each other.

  Moreover, the cover attachment 91 with a discharge port illustrated in FIG. 9 also includes two discharge ports 91c1 and 91c2 in this case. The discharge ports 91c1 and 91c2 are divided into an upper portion and a middle portion of the cover attachment 91 with discharge ports, and are configured in two stages. Two flow paths 91r1 and 91r2 are formed inside the cover attachment 91 with a discharge port. Among these, the flow path 91r1 is provided over almost the entire length from the lower end to the upper end of the cover attachment 91 with discharge port, and the flow path 91r2 is provided from the lower end to the center portion of the cover attachment 91 with discharge outlet. . The discharge port 91c1 communicates with the flow channel 91r1, and the discharge port 91c2 communicates with the flow channel 91r2.

  Also according to this configuration example, the circulating water can be discharged from the upper part and the middle part of the circulating water channel, and the cleaning effect by the circulating water can be improved by discharging the circulating water from different positions. Also in this case, the number of discharge ports is not limited to two, and may be three or more. Further, the shape and size of the plurality of ejection openings may be the same or different from each other.

  Further, as illustrated in FIG. 10, the attachment that is detachably attached to the attachment attachment portion 20 instead of the filter attachment 31 may be configured to include a plurality of beads. The cover attachment 101 with beads exemplified in FIG. 10 has a plurality of beads 101b protruding toward the inside of the rotating tub 13 on the surface thereof, in this case, the surface facing the inside of the rotating tub 13 in a state of being attached to the attachment mounting portion 20. It has. According to this configuration example, when the laundry in the rotating tub 13 comes into contact with the bead 101b during operation, an improvement in the cleaning effect due to friction between the laundry and the bead 101b can be expected.

  As described above, various attachments can be applied to the attachment that is detachably attached to the attachment attachment portion 20 in place of the filter attachment 31 as long as the attachment does not include a filter.

  According to the washing machine according to the present embodiment, the attachment attachment portion provided in a part of the circulation channel can be attached with a filter attachment having a filter, and instead of this filter attachment, a type different from the filter attachment. The attachment can also be attached. According to this configuration example, in the operation where the necessity of the filter is high, by attaching the filter attachment, the foreign matter capturing function by the filter can be fully utilized, while in the operation where the necessity of the filter is low, the filter By attaching an attachment of a type different from the attachment, the effect of the filter can be eliminated and the cleaning effect of the circulating water can be sufficiently exerted.

  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 washing machine, 12 is a water tub, 13 is a rotating tub, 17 and 57 are circulation channels, 20 is an attachment mounting portion, 31 is a filter attachment, 31b is a filter, 41 is a cover attachment with a discharge port (filter attachment and Is a different type of attachment), 41c, 57c, 81c, 91c1, 91c2 is a discharge port, 61 is a cover attachment without a discharge port (attachment of a different type from the filter attachment), 71 is a packing, and 101 is a cover attachment with a bead (filter) A different type of attachment from the attachment).

Claims (5)

A tank,
A rotating tank provided rotatably in the water tank;
A circulating water channel that is provided on an inner peripheral surface of the rotating tank and circulates water in the water tank;
An attachment mounting portion provided in a part of the circulating water channel, to which the attachment is detachably mounted;
With
The attachment attachment part can be attached with a filter attachment having a filter, and can also attach an attachment of a type different from the filter attachment in place of the filter attachment.   The washing machine according to claim 1, wherein the attachment of a type different from the filter attachment is a cover attachment that closes the attachment attachment portion.   The washing machine according to claim 2, wherein the cover attachment includes a discharge port that discharges water circulating in the circulation channel into the rotating tub.   The washing machine according to claim 2, wherein a portion of the circulation channel other than the attachment attachment portion is provided with a discharge port that discharges water circulating in the circulation channel into the rotating tub. The washing machine according to any one of claims 1 to 4, further comprising a packing that tightly seals between the attachment and the attachment mounting portion.

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