JP7190414B2 - vertical washing machine - Google Patents

Description

The present invention relates to vertical washing machines.

Since the vertical washing machine does not have an inner lid, the movement of the pulsator is adjusted in order to suppress water splashing during operation. In addition, the vertical washing machine controls the pulsator to increase the mechanical power in order to improve the washing power.

Patent Literature 1 describes a vertical washing machine that seals a tub by attaching an inner lid to a tub cover via packing.

In Patent Document 2, a vertical type with a function of taking in air from an intake window hole provided in the outer lid, blowing off the moisture of the clothes, drying the clothes as much as possible, and shortening the drying time (room drying time). A washing machine is mentioned.

Japanese Patent Application Laid-Open No. 2001-300195 JP 2008-194528 A

However, the vertical washing machine described in Patent Document 1 can suppress water splashing during operation and improve detergency, but air can be taken into the tub because the inner lid seals the tub. Can not. For this reason, it is not possible to shorten the room drying time.

Since the vertical washing machine described in Patent Document 2 does not include an inner lid, it is not possible to prevent water splashing and improve detergency.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vertical washing machine capable of reducing the drying time while suppressing water splashing and improving detergency.

The present invention includes an outer tub that rotatably accommodates an inner tub, a housing that houses the inner tub and the outer tub, an outer lid that is provided on the upper surface of the housing and opens and closes a laundry inlet, a tank cover that closes the upper part of the outer tank, the tank cover includes an openable and closable inner cover, and has a shape in which a region located on the rear side covers a wider area than regions located on the front side and on both left and right sides, When the inner lid is closed, a gap is formed between the tank cover and the inner lid . It is characterized in that it is formed wider than the gaps of the regions located on both left and right sides .

According to the present invention, it is possible to provide a vertical washing machine capable of shortening the drying time while suppressing water splashing and improving the detergency.

It is a perspective view which shows the vertical washing machine of this embodiment. It is a schematic diagram showing the internal configuration of the vertical washing machine of the present embodiment. It is a perspective view which shows an outer cover. It is a top view which shows a tank cover. FIG. 5 is a cross-sectional view taken along line VV of FIG. 4; FIG. 5 is a sectional view taken along the line VI-VI of FIG. 4; FIG. 6 is a partially enlarged sectional view of FIG. 5;

Hereinafter, vertical washing machines according to embodiments of the present invention will be described in detail with reference to the drawings as appropriate. The vertical washing machine 1 of the present embodiment is applied to a vertical fully automatic washing machine having washing (washing), rinsing, and spin-drying functions. That is, the vertical washing machine 1 of this embodiment does not have a drying function. In the following description, the front, rear, up, down, left, and right directions are based on the front, rear, up, down, left, and right directions shown in FIG.

FIG. 1 is a perspective view showing a vertical washing machine of this embodiment. Note that FIG. 1 shows a state in which both the outer lid 5 and the inner lid 7 of the vertical washing machine 1 are opened.
As shown in FIG. 1, a vertical washing machine 1 accommodates an outer tub 2 (see FIG. 2) that rotatably supports a washing/drying tub 3 (inner tub), and an outer tub 2 and washing/drying tub 3. housing 4, an outer lid 5 for opening and closing a clothes inlet 4a (laundry inlet) formed in the upper part of the housing 4, and a tank cover 6 for covering the upper opening 2s of the outer tank 2 (see FIG. 2) and Further, the tank cover 6 has an inner lid 7 that can be opened and closed.

The washing and dehydrating tub 3 has a substantially vertical rotating shaft and has a cylindrical shape with a bottom. It has a balance ring 3d. A side wall (body plate 3a) of the washing and dewatering tub 3 is formed with a large number of through holes 3c (see FIG. 2) for water flow and ventilation. The through hole 3c also functions as a dehydration hole for separating and discharging the washing water contained in the laundry W (see FIG. 2) from the laundry W by centrifugal force.

The balance ring 3d is made of synthetic resin or the like in a ring shape and fixed to the upper end of the body plate 3a. The balance ring 3d is arranged so as to protrude radially inward from the inner wall surface of the body plate 3a, and the inner diameter of the balance ring 3d is smaller than the inner diameter of the body plate 3a. The balance ring 3d is configured by enclosing a fluid with a large specific gravity (salt water, etc.) inside. It has the function of canceling out and maintaining the balance of rotation.

The housing 4 includes a steel plate frame 4b, a synthetic resin base 4c provided at the bottom of the frame 4b, a synthetic resin top cover 4d (upper plate) provided at the top of the frame 4b, is configured with Although not shown, the inside of the housing 4 is reinforced using a reinforcing member (not shown). Further, the base 4c is reinforced by forming grid-like ribs and the like inside.

The clothing inlet 4a of the housing 4 is formed in a straight line in the left-right direction on the back side (rear) and arcuately formed from the back side toward the front (front), and is generally semi-cylindrical as a whole. is formed in

Further, inside the housing 4, a lid 4e having an elongated shape in the left-right direction is provided in front of the clothing slot 4a. Tanks (not shown) for automatically charging detergents (for detergent and softener) are accommodated inside the lid 4e. In addition, a detergent manual input portion 4f for manually inputting detergents is provided on the front left side of the clothing input port 4a.

The outer lid 5 is configured to be bent in two, and a front lid 5a and a rear lid 5b are rotatably connected via a hinge 5c.

The tank cover 6 is formed with a substantially semicircular loading hole 6a that conforms to the shape of the clothing loading port 4a.

The inner lid 7 is formed along the input hole 6a and slightly larger than the input hole 6a, and has a shape capable of covering the entire input hole 6a. Both left and right sides of the rear end of the inner lid 7 are rotatably connected to the tank cover 6 via hinges 7a, 7a. Further, the inner lid 7 is provided with a locking member 7b for locking the inner lid 7 to the tank cover 6 when the inner lid 7 is closed.

A buffer member 7s made of an elastic material such as rubber is provided on the outer peripheral edge of the back surface of the inner lid 7 . A plurality of buffer members 7s are provided on the outer peripheral edge.

FIG. 2 is a schematic diagram showing the internal configuration of the vertical washing machine of this embodiment.
As shown in FIG. 2 , the outer tank 2 is made of synthetic resin, has a substantially cylindrical shape with a bottom, and is supported by a vibration isolator 8 . The vibration isolator 8 is made of a spring or elastic rubber, and supports the outer tank 2 by suspending it from the upper part of the housing 4 .

The bottom of the outer tank 2 is provided with an outer tank drain port 2a. A drain valve 13 and a drain hose 11 as a drain device are connected to the outer tank drain port 2a. The drain valve 13 is opened by a command from the control unit 19 when the dehydration process or the like is performed. Washing water in the outer tub 2 is discharged from the other end of the drain hose 11 to the outside of the vertical washing machine 1 .

A stirring blade (pulsator) 3 e is provided at the bottom of the washing and dehydrating tub 3 . The stirring blade 3e is provided with a large number of through holes (not shown) penetrating vertically. Further, a blade member 3f is provided on the rear surface (lower surface) of the stirring blade 3e, and washing water is pushed out radially outward of the washing and dewatering tub 3 by rotating the stirring blade 3e.

The washing and dehydrating tub 3 also includes circulation flow path members 24, 24 arranged facing each other. The circulation channel member 24 is made of a synthetic resin material and attached to the inner peripheral surface (side wall inner surface) of the washing and dewatering tub 3 .

A circulation channel R is provided in the vertical direction between the circulation channel member 24 and the washing/dehydrating tub 3 . Washing water is led to the circulation flow path R when the stirring blade 3e rotates during washing. The washing water rises in the circulation channel R and is discharged into the washing and dehydrating tub 3 from a discharge port 32 formed at the upper end of the circulation channel member 24 (the lower end of the balance ring 3d). water circulates.

A driving device 15 having a motor 15a and a clutch mechanism 15b is attached to the outside of the bottom portion of the outer tub 2 via an attachment base 14 made of steel plate. In the driving device 15, a rotating shaft of a motor 15a passes through the outer tub 2 and is connected to the washing and dehydrating tub 3 and the stirring blade 3e. The clutch mechanism 15b transmits the rotational power of the motor 15a to the washing and dewatering tub 3 and the stirring blade 3e in the dehydration mode. Further, the clutch mechanism 15b transmits the rotational power of the motor 15a to the agitating blade 3e with the washing/drying tub 3 fixed or freely rotatable in the agitation mode. The motor 15a includes a rotation sensor (not shown) configured by a Hall element or photointerrupter for detecting its rotation, and a motor current sensor (not shown) for detecting current flowing through the motor 15a.

The tank cover 6 has a circular plate shape and is provided at the upper end of the outer tank 2 . Further, the loading hole 6a formed in the tub cover 6 is located radially inward of the clothing loading port 4a so that the inner lid 7 can be opened and closed.

FIG. 3 is a perspective view showing an outer lid. 3 shows a state in which the outer lid 5 is viewed from below.
As shown in FIG. 3, the outer lid 5 includes a front lid 5a located on the front side and a rear lid 5b located on the rear side of the front lid 5a.

The front lid 5a is provided with a handle 5a1 (see FIG. 1). The handle 5a1 has an insertion portion 5a2 into which a hand can be inserted (see FIG. 1). A vent hole 5a3 through which air can flow is formed at the tip of the insertion portion 5a2.

The rear lid 5b is provided with a circuit board case 5b1 that accommodates a circuit board (not shown) having operation switches. A hinge portion 5b2 that rotatably connects the outer lid 5 to the housing 4 is provided on the rear lid 5b.

FIG. 4 is a plan view showing the tank cover. 4 shows a state in which the tank cover 6 is viewed from the front side (top side).
As shown in FIG. 4 , the tub cover 6 has a water supply connection port 6 s behind the inner lid 7 to which a hose (not shown) for supplying water to the washing and dehydrating tub 3 is connected. The water supply connection port 6 s is connected to the water supply electromagnetic valve 16 via a hose 17 . A portion of the hose 17 is formed in a bellows shape to absorb vibrations of the outer tub 2 . The water supply electromagnetic valve 16 communicates with a connecting portion 16a formed in the top cover 4d to which a hose 18 from a tap is connected.

The outer peripheral edge portion 7c of the inner lid 7 is located inside the outer peripheral edge portion 6g of the tank cover 6 . Further, the tank cover 6 is formed with a guide surface 6b around the inner lid 7 for guiding air to the inside of the inner lid 7. As shown in FIG.

5 is a cross-sectional view taken along the line VV of FIG. 4. FIG.
As shown in FIG. 5, the inner lid 7 is configured by combining a lid body 7d located on the upper surface side (front side) and a back lid 7e located on the lower surface side (back side). The lid main body 7d and the back lid 7e are fixed to each other via a plurality of screws 7f (see FIG. 1).

The back cover 7e has a concave portion 7e1 formed in the central portion thereof, the concave surface of which faces downward in the vertical direction. Further, the back cover 7e has a flat portion 7e2 formed on the outer peripheral side of the concave portion 7e1. The back cover 7e has an inclined portion 7e3 formed on the outer peripheral side of the flat portion 7e2 and rising toward the lid main body 7d and toward the outer peripheral side. Further, the back cover 7e has an extending portion 7e4 extending horizontally outward in the radial direction on the outer peripheral side of the inclined portion 7e3.

The lid body 7d is formed with a hanging portion 7d1 extending downward in the vertical direction. The tip (lower end) of the drooping portion 7d1 is located vertically below the lower surface 7e5 (see FIG. 7) of the extending portion 7e4.

An inner peripheral edge portion 6c of the tank cover 6 is formed with a projecting portion 6d projecting upward in the vertical direction. The protruding portion 6d is not formed partially in the circumferential direction of the inner peripheral edge portion 6c, but is formed over the entire circumference of the inner peripheral edge portion 6c. As a result, it is possible to prevent water leakage and bubble leakage from inside the tub (outer tub 2, washing and dehydrating tub 3).

A gap S1 is formed between the tank cover 6 and the inner lid 7 at the left end of the inner lid 7 in the drawing. A gap S2 is formed between the tank cover 6 and the inner lid 7 at the right end of the inner lid 7 in the drawing. Thus, in this embodiment, although the inner lid 7 is provided, no packing (sealing member) is provided between the tank cover 6 and the inner lid 7 . Therefore, gaps S1 and S2 are formed between the tank cover 6 and the inner lid 7 when the inner lid 7 is fully closed.

FIG. 6 is a sectional view taken along line VI-VI of FIG.
As shown in FIG. 6, the back cover 7e has a concave portion 7e1, a flat portion 7e2, an inclined portion 7e3, and an extending portion 7e4, similarly to the description of FIG.

A gap S3 is formed between the tank cover 6 and the inner lid 7 at the front end of the inner lid 7 in the drawing. A gap S4 is formed between the tank cover 6 and the inner lid 7 at the illustrated rear end of the inner lid 7 .

5 and 6 show partial cross sections of the left end, right end, rear end and front end, but there is a gap (gap) between the tank cover 6 and the inner lid 7 over the entire circumference. (similar to S1 to S4) are formed.

7 is a partially enlarged sectional view of FIG. 5. FIG. In the following description, a part of the enlarged view will be described as an example, but the description of the other parts will be omitted assuming that the other parts are configured in the same manner.
As shown in FIG. 7, the projection 6d formed on the tank cover 6 preferably has a height dimension H of 3.0 mm or more from the guide surface 6b (upper surface of the tank cover 6). As a result, water leakage and bubble leakage from inside the tub (inside the outer tub 2 and inside the washing and dewatering tub 3) can be further suppressed.

A gap S1 formed between the tank cover 6 and the inner lid 7 is configured to have a labyrinth structure. That is, the vertical (vertical) distance S between the lower end (tip) 7d2 of the drooping portion 7d1 and the upper end (tip) 6d1 of the protrusion 6d is preferably set to 0.5 mm or less, more preferably. is preferably set to 0 mm or less. Note that the distance S may include a negative value. In this embodiment, the distance S is set to be negative, and the upper end 6d1 of the projecting portion 6d is located vertically above the lower end 7d2 of the hanging portion 7d1. Thus, by forming the gap S1 into a labyrinth structure, water leakage and foam leakage can be suppressed more reliably.

In addition, the gap S1 is preferably set such that the dimension (distance) L between the lower end 7d2 of the drooping portion 7d1, which is the entrance, and the guide surface 6b is 3.5 mm or more. As a result, air can be taken into the tank during dehydration, which will be described later. As a result, the dehydration efficiency can be improved, and the drying time (room drying time) can be shortened.

In addition, if the dimension L of the air inlet is 3.5 mm or more, the clearance S1 has a dimension L It may be formed shorter (narrower) than.

By the way, the vertical washing machine 1 of the present embodiment takes air into the tub during the dehydration operation, evaporates the moisture of the clothes, and shortens the drying time (room drying time) compared to ordinary dehydration. It has functions that can That is, as shown in FIG. 2, when the washing/dehydrating tub 3 rotates at high speed during the dehydrating operation, centrifugal force causes moisture contained in the clothes to flow between the outer tub 2 and the washing/dehydrating tub 3 through the through holes 3c. , and then discharged out of the machine through the drain hose 11 . The air in the washing/drying tub 3 during the dehydration operation is discharged into the space between the outer tub 2 and the washing/drying tub 3 through the through hole 3c, the through hole (not shown) of the pulsator, and the like. The air discharged into the outer tub 2 is discharged out of the machine through the drain hose 11. - 特許庁Further, the air discharged into the outer tank 2 passes through the gaps S1 to S4 (see FIGS. 5 and 6) between the tank cover 6 and the inner lid 7 and is discharged to the outside of the outer tank 2. It is discharged out of the machine through the space between 4 and the outer tank 2 . When the air in the tank is discharged to the outside of the apparatus, the air is taken into the housing 4 through the ventilation hole 5a3 (see FIG. 3) formed in the handle 5a1 of the outer lid 5. As shown in FIG. The air taken into the housing 4 passes through the gaps S1 to S4 between the tub cover 6 and the inner lid 7 and is taken into the washing and dehydrating tub 3 . The air taken into the washing/dehydrating tub 3 comes into contact with the clothes, removes the moisture contained in the clothes, and is discharged between the washing/dehydrating tub 3 and the outer tub 2 through the through holes 3c and the like. be done. By dehydrating the clothes in this way, it is possible to shorten the room-drying time when the clothes are then dried indoors. In addition, it is not limited to indoor drying, and the outdoor drying time can also be shortened. Thus, the gaps S1 to S4 have a function of drawing air into the tank and a function of discharging air to the outside of the tank.

In addition, in order to solve the problem of shortening the drying time, the gaps S1 to S4 are not limited to a configuration in which the dimension L (see FIG. 7) is 3.5 mm or more. Just do it. Also, by setting the dimension L to 3.5 mm or more, contact between the tank cover 6 and the inner lid 7 can be suppressed, and noise generated by the contact can be prevented.

A buffer member 7 s is provided on the back surface of the inner lid 7 . By providing the buffer member 7s in this way, even if the gaps S1 to S4 are narrowed in consideration of water leakage and foam leakage, it is possible to prevent noise (abnormal noise) from being generated during operation.

As described above, the vertical washing machine 1 of the present embodiment includes the outer tub 2 that rotatably houses the washing and dewatering tub 3, the housing 4 that houses the washing and dewatering tub 3 and the outer tub 2, An outer lid 5 provided on the upper surface of the housing 4 for opening and closing the clothes inlet 4a, and a tub cover 6 for closing the upper portion of the outer tub 2 are provided. The tank cover 6 has an openable/closable inner lid 7, and gaps S1 to S4 are formed between the tank cover 6 and the inner lid 7 when the inner lid 7 is closed (when fully closed). (See Figures 4-6). According to this, by providing the inner lid 7, water splashing can be suppressed, so that the mechanical force (operating force of the stirring blade 3e) can be increased to improve the detergency. Further, by providing the gaps S1 to S4, air can be taken into the washing and dehydrating tub 3, so that the drying air can be blown to the clothes, and the room drying time can be shortened.

In addition, in this embodiment, the inner peripheral edge portion 6c of the tank cover 6 is formed with a protrusion portion 6d that protrudes upward along the circumferential direction. According to this, water leakage and bubble leakage to the outside of the outer tub 2 can be suppressed.

Further, in this embodiment, the gaps S1 to S4 are formed all around. According to this, air can be easily taken in, so that air can be easily blown to the clothes during dehydration, and the room drying time can be shortened as compared with the case where the gaps S1 to S4 are partially formed.

Further, in this embodiment, the gaps S1 to S4 have a labyrinth structure. According to this, water leakage and bubble leakage to the outside of the tank (outside of the outer tank 2) can be further suppressed.

Moreover, the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the gaps S1 to S4 are not limited to being formed over the entire circumference, and the gaps may be formed partially.

Further, in this embodiment, the area where the tank cover 6 is located on the rear side covers the upper part of the tank more widely than the front side and the left and right sides, that is, it protrudes radially inward from the inner peripheral wall surface of the washing and dewatering tank 3. there is Therefore, water leakage and foam leakage are less likely to occur. Therefore, since the gap S4 on the rear side can be formed wider than the other gaps S1 to S3, it becomes easier to take air into the tank during the dehydration operation.

1 vertical washing machine 2 outer tub 3 washing and dehydrating tub (inner tub)
4 housing 4a clothes input port (laundry input port)
5 Outer Lid 6 Tank Cover 6d Projection 7 Inner Lid 7s Cushioning Member S1 to S4 Gap

Claims (4)

an outer tank that rotatably accommodates the inner tank;
a housing that accommodates the inner tank and the outer tank;
An outer lid provided on the upper surface of the housing for opening and closing the laundry inlet;
a tank cover that closes the upper part of the outer tank,
The tank cover has an inner lid that can be opened and closed , and has a shape in which the area located on the rear side covers more than the areas located on the front side and the left and right sides,
A gap is formed between the tank cover and the inner lid when the inner lid is closed ,
The gap is formed along the entire circumference,
A vertical washing machine , wherein the gap in the area located on the rear side is formed wider than the gaps in the areas located on the front side and the left and right sides . In the vertical washing machine according to claim 1,
The outer lid is formed with a vent hole for taking air into the housing,
A vertical washing machine characterized in that air taken into the housing through the ventilation hole is taken into the inner tub through the gap during dehydration operation . In the vertical washing machine according to claim 1 or claim 2 ,
The tank cover has a guide surface formed around the inner lid for guiding air to the inside of the inner lid, and projections protruding upward on the inner peripheral edge of the guide surface along the circumferential direction. formed by
The inner lid is formed with an inclined portion that rises toward the outer peripheral side, and an extension portion that extends horizontally outward in the radial direction is formed on the outer peripheral side of the inclined portion, and the extension portion extends outward in the radial direction. A hanging portion extending vertically downward is formed on the peripheral edge,
A vertical washing machine , wherein the distance between the protrusion and the lower surface of the extending portion is shorter than the distance between the lower end of the hanging portion and the guide surface . In the vertical washing machine according to any one of claims 1 to 3,
The vertical washing machine, wherein the gap has a labyrinth structure.

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