JP7088484B2 - washing machine - Google Patents

Description

The present invention relates to a washing machine.

In the washing machine of Patent Document 1 below, a bag-shaped clothes storage body composed of a net is attached to the inner peripheral wall of the washing / dehydrating tub. Delicate clothes are put into the clothes compartment, other ordinary clothes are put directly into the washing and dehydration tub, and these clothes are washed together.

Japanese Unexamined Patent Publication No. 9-299679

In the washing machine of Patent Document 1, if ordinary clothes directly put into the washing / dehydrating tub hit the clothes storage body, the net of the clothes storage body may be torn, and the clothes storage body is repaired every time the net is torn. Or need to be replaced. In addition, since the clothes storage body composed of the net is soft, the impact when ordinary clothes located outside the clothes storage body hit the clothes storage body is transmitted to the delicate clothes inside the clothes storage body. Clothes storage Clothes inside may be damaged.

The present invention was made in such a background, and while preventing damage to the structure for washing ordinary laundry and delicate laundry together, washing the delicate laundry without damaging it. The purpose is to provide a washing machine that can be used.

The present invention is a washing tub that is formed in a cylindrical shape having an outer tub for storing water and a vertically extending axis, is rotatable around the axis, and is housed in the outer tub, and has the cylindrical shape. A washing tub having a main storage space for storing laundry, and a washing tub having a large number of through holes through which water stored in the outer tub can flow between the outer tub and the washing tub are formed on the circumferential wall of the washing tub. The storage box includes a storage box attached to the inner peripheral surface of the tub, the storage box has a main body and a lid, and the main body faces the inner peripheral surface of the washing tub at a predetermined distance. A curved plate portion that curves and extends along the circumferential direction of the inner peripheral surface, and a pair of side plate portions that extend from the left and right ends of the curved plate portion to the inner peripheral surface and are fixed in contact with the inner peripheral surface at the tip. The bottom plate portion extends from the lower end of the curved plate portion to the inner peripheral surface and the tip thereof is fixed in contact with the inner peripheral surface, and the upper end of the curved plate portion extends from the upper end to the inner peripheral surface and the tip is inside the inner surface. The top plate portion fixed in contact with the peripheral surface is integrally formed by a plate member having a certain rigidity, and the curved plate portion, the pair of side plate portions, the bottom plate portion, and the top plate portion of the main body are integrally formed. The space surrounded by each inner surface of the washing tub and the inner peripheral surface of the washing tub forms a sub-accommodating space for accommodating a specific laundry, and the lower side of the curved plate portion is the inside of the washing tub. The lower plate portion parallel to the peripheral surface, and the upper side is an inclined plate portion inclined toward the inner peripheral surface side of the washing tub. A doorway that opens in a rectangular shape is formed, and the lid is curved in the circumferential direction along the shape of the inclined plate portion, and is engaged with the doorway to close the doorway and from the doorway. It is a washing machine that is removed and opens the doorway .

Further, in the present invention, a plurality of elongated holes extending in parallel from the curved plate portion side toward the inner peripheral surface of the washing tub are formed in the pair of side plate portions and the bottom plate portion, respectively. It is characterized by.

Further, in the present invention, the pair of side plates and the inner surface of the bottom plate facing the sub-accommodation space are provided with protrusions protruding into the sub-accommodation space while edging each elongated hole . It is characterized by.

According to the present invention, the main storage space of the washing tub can store ordinary laundry that does not require separate washing, and the sub storage space of the storage box provided on the inner peripheral surface of the washing tub can be used for delicate washing. Can accommodate things.
Since the storage box is composed of plate members such as a curved plate portion, a side plate portion, and a bottom plate portion, the rigidity is higher than that in the case of being composed of a net. Therefore, even if ordinary laundry in the main storage space hits the storage box, damage to the storage box can be prevented, and the impact when ordinary laundry hits the storage box is delicate washing in the sub-containment space. It is also possible to prevent the laundry in the sub-containment space from being damaged by being transmitted to the object.
Further, the flat cross section of the sub-accommodation space has an arc shape extending in the circumferential direction of the inner peripheral surface of the washing tub, and the dimension of the sub-accommodation space in the radial direction about the axis of the washing tub is to the upper end of the sub-accommodation space. Small towards. As a result, the delicate laundry in the sub-containment space is restrained, and it is possible to prevent the laundry from being damaged by moving around in the sub-accommodation space.
As a result, it is possible to prevent the storage box for washing ordinary laundry and delicate laundry together from being damaged, and to wash the delicate laundry in the storage box without damaging it.

Further, according to the present invention, the entrance / exit of the laundry in the storage box is formed in the curved plate portion, which is an inclined plate portion that approaches the inner peripheral surface of the washing tub toward the upper end thereof. As a result, it is possible to secure a large entrance / exit as compared with the case where the entrance / exit is formed other than the inclined plate portion. Therefore, it becomes easy to put in and take out the laundry in the sub-accommodation space of the accommodation box.

Further, according to the present invention, during the dehydration rotation of the washing tub, the water contained in the laundry in the sub-accommodation space is discharged to the outside of the accommodation box from the drain hole of the accommodation box, so that the laundry in the sub-accommodation space is discharged. Can be effectively dehydrated.

Further, according to the present invention, the inner surface portion of the storage box is provided with a protruding portion protruding into the sub-containment space while edging the drainage hole. Even if the laundry outside the storage box, that is, in the main storage space, tries to enter the sub storage space through the drain hole, it is blocked by the protrusion, so that the laundry can be prevented from being caught in the drain hole.

FIG. 1 is a vertical sectional view of an internal structure of a washing machine according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the storage box included in the washing machine. FIG. 3 is a perspective view of the main body of the storage box. FIG. 4 is a cross-sectional view taken along the line AA of FIG. FIG. 5 is a cross-sectional view taken along the line BB of FIG. FIG. 6 is a cross-sectional view taken along the line CC of FIG. FIG. 7 is a vertical cross-sectional view of the internal structure of the washing machine when cut at a position different from that of FIG. FIG. 8 is a vertical cross-sectional view of a main part of the internal structure of the washing machine when cut at a position different from that of FIGS. 1 and 7.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a vertical sectional view of the internal structure of the washing machine 1 according to the embodiment of the present invention. First, an outline of the washing machine 1 will be described with reference to the vertical direction Z in FIG. Of the vertical directions Z in the vertical direction, the upper side is referred to as the upper side Z1 and the lower side is referred to as the lower side Z2. The washing machine 1 includes not only a washing machine that performs a washing operation, a rinsing operation, and a dehydrating operation of laundry, but also a washing / drying machine that also performs a drying operation. The washing machine 1 includes a box-shaped housing 2, an outer tub 3, a washing tub 4, a motor 5, a pulsator 6, a pumping channel 7, and a storage box 8 arranged in the housing 2.

The outer tank 3 is made of resin, for example, and is formed in a bottomed cylindrical shape having a bottom wall 3A at the lower end thereof. An opening 3B is formed at the upper end of the outer tank 3. Water such as tap water, bath water, and a liquid in which detergent is dissolved is stored in the outer tank 3 from the bottom wall 3A side.

The washing tub 4 is formed in a bottomed cylindrical shape that is one size smaller than the outer tub 3. The washing tub 4 has a substantially cylindrical peripheral wall 4B having an entrance / exit 4A at the upper end, and a disk-shaped bottom wall 4C that closes the hollow portion of the peripheral wall 4B from the lower side Z2. For example, the circumferential wall 4B is made of metal, and in the bottom wall 4C, the central portion of the circle is made of metal and the outer peripheral portion is made of resin. The outer peripheral edge portion of the bottom wall 4C is formed in a cylindrical shape bent toward the upper side Z1, and may be regarded as the lower end portion of the circumferential wall 4B. The bottom wall 4C and the lower end portion of the circumferential wall 4B connected to the bottom wall 4C constitute the bottom portion 4D of the washing tub 4. In the washing tub 4, a substantially cylindrical internal space surrounded by a peripheral wall 4B, blocked from a lower Z2 by a bottom wall 4C, and opened from an entrance 4A to an upper Z1 is referred to as a main storage space 4E. The washing tub 4 is coaxially housed in the outer tub 3 and supported by the bottom wall 3A of the outer tub 3. The washing tub 4 in this state can rotate around the axis J extending in the vertical direction Z through the center of the circle of the washing tub 4. Such a washing machine 1 is a vertical washing machine in which the washing tub 4 is vertically arranged.

The axis J of the washing tub 4 is also the center of the outer tub 3, and the rotation direction of the washing tub 4 coincides with the circumferential direction P of the outer tub 3 and the washing tub 4. In the following, the radial direction centered on the axis J is referred to as the radial direction R, the side of the radial direction R toward the axis J, that is, the side facing the axis J is referred to as the radial inner R1, and the side away from the axis J is referred to as the radial outer R2. That is. The circumferential direction P and the radial direction R are both directions along the horizontal direction H.

The entrance / exit 4A of the washing tub 4 is in a state of communicating with the opening 3B of the outer tub 3. The opening 3B and the doorway 4A are collectively opened and closed by a door 9 provided in the housing 2 or the outer tank 3. The user of the washing machine 1 can put the laundry in and out of the washing tub 4 through the open doorway 4A. Through holes 4F are formed in each of the circumferential wall 4B and the bottom wall 4C, and water in the outer tub 3 can flow between the outer tub 3 and the washing tub 4 via the through holes 4F. As a result, water is stored in the washing tub 4 from the bottom wall 4C side so that the water level becomes the same as that of the outer tub 3. The water collected in the outer tub 3 and the washing tub 4 is discharged to the outside of the machine through the drainage channel 10 connected to the bottom wall 3A of the outer tub 3.

The inner peripheral surface 4G of the circumferential wall 4B is the inner peripheral surface of the washing tub 4. The circumferential direction P is the direction in which the inner peripheral surface 4G extends. An annular balancer 11 along the circumferential direction P is attached to the upper end of the inner peripheral surface 4G. The balancer 11 reduces the vibration of the washing tub 4 during rotation, and the cavity 11A inside the balancer 11 contains a liquid such as salt water for contributing to the vibration reduction.

The motor 5 is arranged in the lower Z2 of the center of the circle of the bottom wall 3A of the outer tank 3 in the housing 2. The output shaft of the motor 5 branches into a tubular first output shaft 5A extending to the upper side Z1 along the axis J and a second output shaft 5B inserted with play with respect to the first output shaft 5A. The motor 5 can selectively output the driving force from either the first output shaft 5A or the second output shaft 5B. The first output shaft 5A extends to the upper side Z1 and penetrates the center of the circle of the bottom wall 3A. The upper end of the first output shaft 5A is connected to the washing tub 4 by being fixed to the bottom wall 4C of the washing tub 4. When the motor 5 is driven and the driving force is transmitted to the first output shaft 5A, the washing tub 4 rotates.

The pulsator 6 is a disk arranged along the horizontal direction H at the bottom 4D of the washing tub 4. The circumferential direction of the pulsator 6 coincides with the circumferential direction P of the washing tub 4, and the radial direction of the pulsator 6 coincides with the radial direction R of the washing tub 4. In the pulsator 6, a plurality of convex portions 6A arranged in the circumferential direction P are provided on the upper surface forming the front surface, and a plurality of blades 6B arranged in the circumferential direction P are provided on the lower surface forming the back surface. Each convex portion 6A is formed in a streak shape that rises to the upper side Z1 along the radial direction R of the pulsator 6. Each blade 6B has a thin plate shape in the circumferential direction P, and is arranged radially from the circular center portion of the pulsator 6. In the region between the adjacent convex portions 6A in the pulsator 6, a plurality of through holes 6C that penetrate the pulsator 6 in the vertical direction Z are formed.

In the second output shaft 5B of the motor 5, the upper end portion protruding from the upper Z1 of the first output shaft 5A penetrates the bottom wall 4C of the washing tub 4 and is attached to the circular center portion of the pulsator 6. When the motor 5 is driven and the driving force is transmitted to the second output shaft 5B, the pulsator 6 rotates around the axis J.

The pumping channel 7 is provided in a single number or a plurality. The pumping channel 7 is thin in the radial direction R and has a long cover shape in the vertical direction Z, is erected between the balancer 11 and the bottom wall 4C of the washing tub 4, and is in a posture along the vertical direction Z. It is attached to the inner peripheral surface 4G of the above from the radial inner side R1. A flow path 12 extending in the vertical direction Z is formed between the pumping channel 7 and the inner peripheral surface 4G. The lower end of the flow path 12 is located at the bottom 4D of the washing tub 4 as an inlet, and faces the blade 6B on the lower surface of the pulsator 6 from the radial outer side R2. An outlet 7A extending in the circumferential direction P is formed at the upper end portion of the surface of the radial inner R1 in the pumping channel 7. The outlet 7A is in a state of communicating with the upper end of the flow path 12.

The storage box 8 is attached to a portion of the inner peripheral surface 4G of the washing tub 4 that is separated from the pumping channel 7 in the circumferential direction P. FIG. 2 is an exploded perspective view of the storage box 8. The storage box 8 is made of resin, for example, and includes a main body 15 and a lid 16.

With reference to FIG. 3, which is a perspective view of the main body 15 as viewed from the radial outer side R2, the main body 15 is formed in a cover shape that is flat in the radial direction R and curved along the circumferential direction P. The main body 15 integrally includes a curved plate portion 17, a side plate portion 18, a bottom plate portion 19, and a top plate portion 20. Of the curved plate portion 17, the side plate portion 18, the bottom plate portion 19, and the top plate portion 20, the joints between adjacent objects are rounded so as not to be sharp.

The curved plate portion 17 has a plate thickness direction substantially corresponding to the radial direction R, and is a plate member extending while curving in the circumferential direction P, and faces the inner peripheral surface 4G of the washing tub 4 from the radial inner side R1. Is placed. The curved plate portion 17 integrates a lower plate portion 17A that occupies about one-third of the lower area of the curved plate portion 17 and an inclined plate portion 17B that occupies about two-thirds of the upper side of the curved plate portion 17. Have a target. The lower plate portion 17A is parallel to the inner peripheral surface 4G. Therefore, although the lower plate portion 17A is curved along the circumferential direction P, it extends linearly in the vertical direction Z, and the distance from the axis J in the radial direction R is the same in any portion of the lower plate portion 17A. Is. Although the inclined plate portion 17B is curved along the circumferential direction P, it is not parallel to the inner peripheral surface 4G and is inclined so as to approach the inner peripheral surface 4G toward the upper end of the curved plate portion 17.

An entrance / exit 17C is formed in the inclined plate portion 17B. The entrance / exit 17C is formed in a substantially rectangular shape long in the circumferential direction P, occupies almost the entire area of the inclined plate portion 17B, and penetrates the inclined plate portion 17B along the plate thickness direction thereof. On the inner surface portion of the inclined plate portion 17B facing the inner peripheral surface 4G, a collar-shaped edging portion 17D partially edging the entrance / exit 17C is integrally provided. A recess 17E forming a part of the entrance / exit 17C is formed between the adjacent edging portions 17D. Two recesses 17E are provided side by side in the circumferential direction P at each of the upper edge portion and the lower edge portion of the doorway 17C.

The side plate portions 18 are provided at both ends of the curved plate portions 17 in the circumferential direction P, and there are a pair of side plate portions 18 in total. The pair of side plate portions 18 are plate members extending from both ends of the curved plate portion 17 to the inner peripheral surface 4G of the radial outer side R2. The plate thickness direction of each side plate portion 18 substantially coincides with the circumferential direction P. The pair of side plate portions 18 are arranged so as to be spread out in a plan view so that the distance in the circumferential direction P increases toward the radial outer side R2. The pair of side plate portions 18 have the same size and shape, and specifically, when viewed from the circumferential direction P, the upper bottom connected to the lower plate portion 17A of the curved plate portion 17 and the inner peripheral surface 4G. It is formed in a substantially trapezoidal shape having a lower bottom to be connected.

The bottom plate portion 19 is a plate member extending from the lower ends of the curved plate portion 17 and the pair of side plate portions 18 to the inner peripheral surface 4G. The bottom plate portion 19 is formed in an arc shape along the circumferential direction P in a plan view, and extends outward in the radial direction R2 while descending. The lower end portion of the bottom plate portion 19, that is, the end portion of the radial outer side R2 is a flat portion 19A along the horizontal direction H over the entire area in the circumferential direction P.

The top plate portion 20 is a plate member extending from the upper ends of the curved plate portion 17 and the pair of side plate portions 18 to the inner peripheral surface 4G. The top plate portion 20 is formed in an arc shape along the circumferential direction P in a plan view, and extends along the horizontal direction H.

The lid 16 is a plate member having a size that just covers the entrance / exit 17C of the curved plate portion 17, and is curved so as to be parallel to the inclined plate portion 17B of the curved plate portion 17 when the entrance / exit 17C is closed. The lower edge portion of the lid 16 is provided with a lower engaging portion 16A protruding toward the lower Z2. For example, two lower engaging portions 16A are provided and arranged side by side in the circumferential direction P. The upper edge portion of the lid 16 is provided with an upper engaging portion 16B protruding toward the upper side Z1. For example, two upper engaging portions 16B are provided and arranged side by side in the circumferential direction P. An operation unit 16C is provided on the upper portion of the outer surface portion exposed on the axis J side when the entrance / exit 17C is closed by the lid 16. The operation unit 16C is slidable in the vertical direction Z, and the upper engagement unit 16B moves forward and backward in the vertical direction Z in conjunction with the slide of the operation unit 16C.

The user grabs the operation unit 16C, moves the lid 16, and closes the doorway 17C with the lid 16. At this time, in the lid 16, the outer edge portion is received from the radial outer side R2 by the edging portion 17D in the inclined plate portion 17B of the curved plate portion 17, and the lower engaging portion 16A is 1 in the recess 17E at the lower end of the entrance / exit 17C. The upper engaging portions 16B are fitted one by one into the recess 17E at the upper end of the entrance / exit 17C (see FIG. 3). When the user slides the operation portion 16C to the upper side Z1 in this state, the upper engagement part 16B advances to the upper side Z1 and engages with the inclined plate portion 17B from the radial outer side R2. Is attached to the main body 15 in a closed state. At this time, the outer surface portion of the lid 16 is flush with the outer surface portion of the inclined plate portion 17B around the entrance / exit 17C. When the user slides the operation unit 16C to the lower side Z2, the upper engagement part 16B retracts to the lower side Z2 and does not engage with the inclined plate portion 17B. The lid 16 can be removed from the main body 15 by pulling it to R1. The lid 16 is not removable from the main body 15, and may be connected to the main body 15 via a hinge or the like.

With reference to FIG. 3, the main body 15 is formed with an opening 15A bordered by the edges of the radial outer sides R2 of the curved plate portion 17, the side plate portion 18, the bottom plate portion 19, and the top plate portion 20. The opening 15A has a rectangular shape that is long in the circumferential direction P. In each of the curved plate portion 17, the side plate portion 18, the bottom plate portion 19, and the top plate portion 20, the portion exposed from the opening 15A to the radial outer side R2 is the inner surface portion 15B of the main body 15. In the lid 16 that closes the entrance / exit 17C of the curved plate portion 17, the portion exposed from the opening 15A to the radial outer side R2 is the inner surface portion 16D of the lid 16. The inner surface portion 15B and the inner surface portion 16D constitute the inner surface portion 8A of the storage box 8.

A single or a plurality of bosses 15C extending in the radial direction R are integrally provided on the inner surface portion 15B of the main body 15. The end face of the radial outer R2 in the boss 15C is flush with the end face of the radial outer R2 in each of the curved plate portion 17, the side plate portion 18, the bottom plate portion 19, and the top plate portion 20. A screw hole 15D extending radially inward R1 is formed on the end surface of the boss 15C. A single or a plurality of drain holes 8B are provided in the storage box 8 at a position avoiding the boss 15C. The drainage hole 8B is, for example, a long hole long in the radial direction R. For example, the drainage hole 8B is formed in the pair of side plate portions 18 and the bottom plate portion 19, but may be formed in the lid 16 or the curved plate portion 17. In this embodiment, a plurality of drainage holes 8B are formed side by side in the vertical direction Z in each side plate portion 18, and are formed side by side in the circumferential direction P in the bottom plate portion 19. The inner surface portion 8A of the storage box 8 is integrally provided with a ring-shaped protruding portion 8C having each drainage hole 8B bordered.

A bolt 21 (see FIG. 8 described later) inserted from the radial outer side R2 with respect to the circumferential wall 4B of the washing tub 4 is assembled to the screw hole 15D of each boss 15C of the main body 15, so that the main body 15 is attached to the washing tub 4. It is fixed to the inner peripheral surface 4G of. In the accommodation box 8 in this state, a sub-accommodation space 8D surrounded by an inner peripheral surface 4G, a curved plate portion 17, a pair of side plate portions 18, a bottom plate portion 19, and a top plate portion 20 is formed. The sub-accommodation space 8D and the main accommodation space 4E of the washing tub 4 are separate spaces separated from each other by the accommodation box 8.

As shown in FIGS. 4 to 6, the sub-accommodation space 8D has an arc-shaped or fan-shaped flat cross section extending in the circumferential direction P. As shown in FIG. 7, the dimension D of the sub-accommodation space 8D in the radial direction R is smaller toward the upper end 8E of the sub-accommodation space 8D. Therefore, the dimension D1 (see FIG. 4) near the upper end of the sub-accommodation space 8D is smaller than the dimension D2 (see FIG. 5) in the middle position of the sub-accommodation space 8D, and the dimension D2 is near the lower part of the sub-accommodation space 8D. It is smaller than the dimension D3 (see FIG. 6). Specifically, the dimension D is substantially constant at the same height position as the lower plate portion 17A of the curved plate portion 17, but at the same height position as the inclined plate portion 17B of the curved plate portion 17, the inclined plate portion 17B It gradually becomes smaller toward the upper side Z1 according to the inclination of. As a result, the flat cross section of the sub-accommodation space 8D has almost the same size at the same height position as the lower plate portion 17A, but at the same height position as the inclined plate portion 17B, the radial direction R gradually increases toward the upper Z1. It becomes narrower.

As shown in FIG. 8, the inner surface portion 8A of the accommodation box 8 is in a state of facing the sub-accommodation space 8D. The protruding portion 8C bordering each drain hole 8B of the storage box 8 is in a state of protruding by several mm to 1 cm in the sub storage space 8D. Further, the overall height dimension of the storage box 8 is slightly smaller than the distance between the lower surface 11B of the balancer 11 and the outer peripheral portion of the bottom wall 4C of the washing tub 4 in the vertical direction Z, and the top plate portion 20 of the storage box 8 is. It is arranged adjacent to the lower surface 11B from the lower side Z2. The dimension of the top plate portion 20 in the radial direction R is substantially the same as the dimension of the lower surface 11B in the radial direction R. The overall size of the housing box 8 in the radial direction R is about twice the size of the lower surface 11B in the radial direction R.

Next, the washing performed by the washing machine 1 will be described. With reference to FIG. 1, prior to the start of the washing operation, the user opens the door 9 and stores the laundry in the washing tub 4 via the doorway 4A. When the laundry contains delicate laundry S that is easily torn or loses its shape, the user removes the lid 16 of the storage box 8 from the main body 15 to open the doorway 17C, and if necessary. After the laundry S in the washing net N is accommodated in the sub-accommodation space 8D (see FIGS. 4 to 6) of the accommodation box 8 from the entrance 17C, the lid 16 is attached to the main body 15 to close the entrance 17C. Further, the user accommodates ordinary laundry (not shown) other than the delicate laundry S from the doorway 4A into the main storage space 4E of the washing tub 4.

The user who puts in all the laundry closes the door 9. After that, the water in which the detergent is dissolved is stored in the outer tub 3 and the washing tub 4 as washing water. Then, the pulsator 6 rotates while the washing tub 4 is stationary, and the laundry on the pulsator 6 in the main storage space 4E is agitated by the convex portion 6A of the rotating pulsator 6. Further, the washing water collected in the bottom 4D of the washing tub 4 is sent to the pumping channel 7 by the blade 6B of the rotating pulsator 6, rises in the flow path 12, and is discharged from the outlet 7A of the pumping channel 7 for main storage. It is bathed in the laundry in space 4E. The laundry in the main storage space 4E is washed by being agitated, bathed in washing water, and decomposing stains by the detergent contained in the washing water. At this time, the washing water in the main storage space 4E and a part of the washing water in the outer tub 3 outside the washing tub 4 are used in the drain hole 8B of the storage box 8 and the storage box 8 in the peripheral wall 4B of the washing tub 4. It flows into the sub-accommodation space 8D through the through hole 4F (see FIG. 8) of the portion to which the is attached, and is exposed to the delicate laundry S in the sub-accommodation space 8D. The laundry S in the sub-accommodation space 8D is washed by decomposing the dirt with the detergent contained in the washing water. The washing water that has flowed into the sub-accommodation space 8D flows out of the accommodating box 8 through the drain hole 8B and the through hole 4F. When the outer tub 3 and the washing tub 4 are drained after a predetermined time has elapsed from the start of rotation of the pulsator 6, the washing operation is completed.

In the rinsing operation after the washing operation, tap water is stored in the outer tub 3 and the washing tub 4 as rinsing water, and then the pulsator 6 rotates while the washing tub 4 is stationary. As a result, the laundry in the main storage space 4E is rinsed by being agitated in the rinse water by the pulsator 6 or being bathed in the rinse water from the pumping channel 7. At this time, a part of the rinse water in the main storage space 4E and the outer tub 3 flows into the sub storage space 8D through the drain hole 8B of the storage box 8 and the through hole 4F of the washing tub 4, and the sub storage space 8D. It is exposed to the delicate laundry S inside. As a result, the laundry S in the sub-accommodation space 8D is sooted. The rinse water that has flowed into the sub-accommodation space 8D flows out of the accommodating box 8 through the drain hole 8B and the through hole 4F. When the outer tub 3 and the washing tub 4 are drained after a predetermined time has elapsed from the start of rotation of the pulsator 6, the rinsing operation is completed.

The dehydration operation is carried out as final dehydration after the rinse operation, but may be carried out immediately after the wash operation as intermediate dehydration. In the dehydration operation, the washing tub 4 is dehydrated and rotated at high speed. As a result, water seeps out from the laundry in the main storage space 4E and is discharged from the through hole 4F of the washing tub 4. At this time, water also seeps out from the laundry S in the sub-accommodation space 8D of the accommodation box 8 and is discharged from the drain hole 8B of the accommodation box 8 and the through hole 4F of the washing tub 4. Moisture that could not be completely discharged from the drain hole 8B and the through hole 4F falls from the storage box 8 through the drain hole 19B (see FIG. 3) formed in the flat portion 19A of the bottom plate portion 19 of the storage box 8. do. When the final dehydration is completed, the washing in the washing machine 1 is completed. The user opens the door 9 to take out the laundry in the main storage space 4E from the doorway 4A of the washing tub 4, removes the lid 16 of the storage box 8, and takes out the laundry in the sub storage space 8D from the doorway 17C.

As described above, in the washing machine 1, the main storage space 4E of the washing tub 4 can store ordinary laundry that does not require separate washing, and the storage box 8 provided on the inner peripheral surface 4G of the washing tub 4 The sub-accommodation space 8D can accommodate delicate laundry S, and these laundry can be washed together. Therefore, it is possible to save the trouble of hand-washing the delicate laundry S as in the conventional case or washing the laundry separately from the normal laundry.

Since the storage box 8 is composed of plate members such as a curved plate portion 17, a side plate portion 18, a bottom plate portion 19, and a top plate portion 20, it is more rigid and sturdy than the case where it is composed of a net. Therefore, even if the ordinary laundry in the main accommodation space 4E hits the accommodation box 8, damage to the accommodation box 8 can be prevented, and the impact when the ordinary laundry hits the accommodation box 8 is the sub-accommodation space 8D. It is also possible to prevent the laundry S from being damaged by being transmitted to the delicate laundry S inside, and the ordinary laundry from coming into contact with the laundry S.

Conventionally, the delicate laundry S is washed in the washing tub 4 together with ordinary laundry in the state of being in the washing net N, but in this case, the laundry S in the washing net N is another. There was a risk of tearing or losing its shape, that is, damage, by moving around in the laundry. However, this time, the delicate laundry S is accommodated in the sub-accommodation space 8D of the accommodation box 8, and the flat cross section of the sub-accommodation space 8D has an arc shape extending in the circumferential direction P of the inner peripheral surface 4G of the washing tub 4. The dimension D of the sub-accommodation space 8D in the radial direction R about the axis J of the washing tub 4 is smaller toward the upper end of the sub-accommodation space 8D (see FIGS. 4 to 7). As a result, the delicate laundry S in the sub-accommodation space 8D is restrained so as not to move, especially by pressing the upper portion Z1 in the radial direction R. Therefore, it is possible to prevent the laundry S from being damaged or wrinkled by moving around in the sub-accommodation space 8D.

The dimension D near the lower end of the sub-accommodation space 8D may become smaller toward the lower end of the sub-accommodation space 8D according to the inclination of the bottom plate portion 19 (see FIG. 7). As a result, the lower part of the delicate laundry S in the sub-accommodation space 8D is also restrained from moving around. Further, when the bottom plate portion 19 is tilted, ordinary laundry in the main storage space 4E is less likely to be caught by the bottom plate portion 19, so that it is possible to prevent the laundry from rolling into a dumpling shape.

As a result, it is possible to prevent the storage box 8 for washing the ordinary laundry and the delicate laundry S together from being damaged, and to wash the delicate laundry S in the storage box 8 without damaging it. The washing machine 1 provided with such a storage box 8 is a user who wants to wash delicate laundry S and ordinary laundry together, and in particular, uses the washing net N habitually for washing the laundry S. It is attractive to those who do.

Further, the entrance / exit 17C of the storage box 8 is formed in the inclined plate portion 17B inclined toward the inner peripheral surface 4G side of the washing tub 4 in the curved plate portion 17. As a result, the entrance / exit 17C can be secured larger than the case where the entrance / exit 17C is formed other than the inclined plate portion 17B. Therefore, the laundry S can be easily taken in and out of the sub-accommodation space 8D of the accommodation box 8.

Further, during the dehydration rotation of the washing tub 4, the water contained in the laundry S in the sub-accommodation space 8D is discharged from the drain hole 8B of the accommodation box 8 to the outside of the accommodation box 8, so that the washing in the sub-accommodation space 8D is performed. The object S can be effectively dehydrated.

Further, the inner surface portion 8A of the storage box 8 is provided with a protruding portion 8C protruding into the sub-containment space 8D while edging the drain hole 8B. That is, the storage box 8 is configured to be thicker toward the sub-storage space 8D around the drain hole 8B (see FIG. 8). Even if a part of the laundry outside the storage box 8, that is, in the main storage space 4E, such as a button, tries to enter the sub storage space 8D through the drain hole 8B, the laundry is blocked by the protrusion 8C. It is possible to prevent the drainage hole 8B from being caught.

The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the claims.

For example, the upper end of the curved plate portion 17 of the storage box 8 may be connected to the inner peripheral surface 4G of the washing tub 4, and in this case, the above-mentioned top plate portion 20 in the storage box 8 can be omitted. Further, the curvature of the curved plate portion 17 and the curvature of the inner peripheral surface 4G may be the same or may be different to some extent.

Further, the axis J of the washing tub 4 is along the vertical direction in the above-described embodiment, but may be inclined with respect to the vertical direction.

1 Washing machine 3 Outer tub 4 Washing tub 4E Main storage space 4G Inner peripheral surface 8 Storage box 8A Inner surface 8B Drain hole 8C Protruding part 8D Sub storage space 8E Upper end 17 Curved plate part 17B Inclined plate part 17C Entrance / exit 18 Side plate part 19 Bottom plate Part D Dimension J Axis P Circumferential direction R Radial direction R1 Radial direction Inside S Delicate laundry Z Vertical direction

Claims (3)

The outer tank where water is stored and
A washing tub that is formed in a cylindrical shape with a vertically extending axis, is rotatable around the axis, and is housed in the outer tub, and is stored in the outer tub on the cylindrical peripheral wall. A washing tub with a large number of through holes that allow water to flow between the outer tub and the washing tub, and a main storage space for storing laundry.
Including a storage box attached to the inner peripheral surface of the washing tub, including
The storage box has a main body and a lid, and has a main body and a lid.
The main body has a curved plate portion that curves and extends along the circumferential direction of the inner peripheral surface so as to face the inner peripheral surface of the washing tub at a predetermined distance.
A pair of side plate portions extending from the left and right ends of the curved plate portion to the inner peripheral surface and having the tip in contact with and fixed to the inner peripheral surface.
A bottom plate portion that extends from the lower end of the curved plate portion to the inner peripheral surface and is fixed in contact with the inner peripheral surface at the tip.
The top plate portion that extends from the upper end of the curved plate portion to the inner peripheral surface and is fixed in contact with the inner peripheral surface is integrally formed by a plate member having a certain rigidity.
A space surrounded by the inner surfaces of the curved plate portion, the pair of side plate portions, the bottom plate portion, and the top plate portion of the main body, and the inner peripheral surface of the washing tub for accommodating a specific laundry. Forming a sub-accommodation space,
The curved plate portion has a lower plate portion whose lower side is parallel to the inner peripheral surface of the washing tub and an inclined plate portion whose upper side is inclined toward the inner peripheral surface side of the washing tub.
The inclined plate portion is formed with an entrance / exit that is long in the circumferential direction and is open in a substantially rectangular shape, leaving a peripheral edge portion.
The lid is curved in the circumferential direction along the shape of the inclined plate portion, is engaged with the doorway to close the doorway, and is removed from the doorway to open the doorway. Machine. The first aspect of the present invention, wherein a plurality of elongated holes extending in parallel from the curved plate portion side toward the inner peripheral surface of the washing tub are formed in the pair of side plate portions and the bottom plate portion, respectively . washing machine. The second aspect of the present invention, wherein the pair of side plate portions and the inner surface portion of the bottom plate portion facing the sub-accommodation space are provided with protruding portions that protrude into the sub-accommodation space while edging each elongated hole. washing machine.

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