JP7015996B2 - washing machine - Google Patents

Description

The present invention relates to a washing machine for washing laundry.

There is known a washing / drying machine in which a washing machine is provided with a drying function and the washing function and the drying function are arbitrarily selected to automatically perform from washing to drying (see, for example, Patent Document 1).

FIG. 9 is a cross-sectional view showing a conventional washer / dryer.

In FIG. 9, the outer tank 3 is vibration-proofed and supported by the suspension 2 in the housing 1. The inner tank 4 is arranged in the outer tank 3, the stirring blade 6 is provided at the bottom of the inner tank 4, and the inner tank 4 and the stirring blade 6 are individually rotationally driven by the motor 8 by the drive switching by the clutch 9. To. The outer lid 63 provided on the upper part of the housing 1 is opened, and the inner lid 65 provided on the outer tub cover 64 that closes the upper opening of the outer tub 3 is opened, and laundry and detergent are put into the inner tub 4. The washing process is carried out by injecting water into the inner tub 4 and rotating the stirring blade 6 by the motor 8.

When the washing process is completed, after draining the water in the inner tub 4, the inner tub 4 is rotated by the motor 8 and the water contained in the laundry is discharged by centrifugal force into a large number of small holes formed in the peripheral wall of the inner tub 4. A dehydration process is carried out. When the dehydration process is completed, the washing process is completed by performing a rinsing process of water injection, stirring, drainage, and dehydration.

In order to carry out the drying process in addition to the washing process, there is an air circulation path that passes from the inside of the inner tub 4 to the inside of the outer tub 3 and returns to the inside of the inner tub 4 via the heat exchanger 12, the circulation fan 18, and the heater 19. It is formed. When the warm air heated by the heater 19 is sent into the inner tank 4 by the circulation fan 18 while stirring the laundry by the stirring blade 6, the warm air that has taken away the moisture of the laundry is a small hole in the inner tank 4. By going out into the outer tub 3 and passing through the heat exchanger 12, the warm air containing water is cooled and dehumidification occurs to dehumidify the water. The dehumidified air is sent to the heater 19 again by the circulation fan 18 to be heated, and is sent to the inner tank 4. By repeating this air circulation, the laundry is dried.

When the washing machine is provided with a drying function as described above to form a washer / dryer, the outer tub cover 64 and the inner lid 65 that close the upper opening of the outer tub 3 are provided. In the outer tank cover 64 and the inner lid 65, the shaft of the inner lid 65 is pivotally supported by the bearing portion of the outer tank cover 64.

Japanese Unexamined Patent Publication No. 2004-313418.

However, in the conventional configuration, since the shaft of the inner lid is pivotally supported by the bearing of the outer tank cover, a gap is required between the bearing of the outer tank cover and the shaft of the inner lid, which causes rattling. There was a problem that abnormal noise was generated due to vibration during dehydration.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a washing machine having high quietness by suppressing the generation of abnormal noise due to vibration during dehydration or the like.

In order to solve the above-mentioned conventional problems, the washing machine of the present invention is rotatably arranged in the outer tub, the housing constituting the exterior, the outer tub supported by vibration isolation in the housing, and the outer tub. The inner tank, the outer lid that opens and closes the clothes inlet provided on the upper surface of the housing, the outer tank cover that covers the upper opening of the outer tank, and the opening formed in the outer tank cover are opened and closed. The outer tank cover is provided with an inner lid that can be freely closed, and the outer tank cover forms a pair of shaft support portions on the upper surface and a protrusion is formed between the pair of shaft support portions. A pair of support portions that rotatably support the inner lid corresponding to the pair of shaft support portions are formed, and two protrusions that sandwich the protrusions are formed with the inner lid closed. Is.

Further, the washing machine of the present invention includes a housing constituting the exterior, an outer tub that is vibration-proof supported in the housing, an inner tub that is rotatably arranged in the outer tub, and the housing. An outer lid provided on the upper surface for opening and closing the clothes inlet, an outer tank cover for covering the upper opening of the outer tank, and an inner lid for opening and closing the opening formed in the outer tank cover are provided. The outer tank cover has a pair of shaft support portions on the upper surface thereof, and two protrusions are formed between the pair of shaft support portions, and the inner lid corresponds to the pair of shaft support portions on one end side. A pair of support portions for rotatably supporting the inner lid are formed, and a protrusion portion sandwiched between the two protrusions is formed with the inner lid closed .

The washing machine of the present invention can provide a washing machine capable of suppressing noise due to vibration during dehydration and improving quietness.

A cross-sectional view showing the overall configuration of the washer / dryer according to the first embodiment of the present invention. Block diagram showing the control circuit configuration of the washer / dryer A plan view showing the configuration of the outer tub cover and the inner lid of the washer / dryer. FF sectional view in FIG. 3 showing a state in which the inner lid of the washer / dryer is opened. FF sectional view in FIG. 3 showing a state in which the inner lid of the washer / dryer is closed. Top view showing the state where the inner lid is removed from the outer tub cover of the washer / dryer. Enlarged sectional view of the main part of the washer / dryer with the inner lid closed. Enlarged sectional view of the main part of the washer / dryer with the inner lid open. Cross-sectional view showing the overall configuration of a conventional washer / dryer

The first invention is provided on the upper surface of the housing, the housing constituting the exterior, the outer tank supported by vibration isolation in the housing, the inner tank rotatably arranged in the outer tank, and the upper surface of the housing. The outer lid is provided with an outer lid that can be opened and closed to open and close the clothing inlet, an outer tank cover that covers the upper opening of the outer tank, and an inner lid that can be opened and closed to open and close the opening formed in the outer tank cover. The outer tank cover forms a pair of shaft support portions on the upper surface and a protrusion is formed between the pair of shaft support portions, and the inner lid has the inner lid corresponding to the pair of shaft support portions on one end side. A pair of support portions that rotatably support the protrusions are formed, and two protrusions that sandwich the protrusions are formed with the inner lid closed .

As a result, it is possible to suppress rattling of the inner lid, suppress the generation of abnormal noise due to vibration during dehydration, and improve quietness.

The second invention is provided on the upper surface of the housing, the housing constituting the exterior, the outer tank supported by vibration isolation in the housing, the inner tank rotatably arranged in the outer tank, and the upper surface of the housing. The outer lid is provided with an outer lid that can be opened and closed to open and close the clothing inlet, an outer tank cover that covers the upper opening of the outer tank, and an inner lid that can be opened and closed to open and close the opening formed in the outer tank cover. The outer tank cover forms a pair of shaft support portions on the upper surface and two protrusions are formed between the pair of shaft support portions, and the inner lid has the inner lid corresponding to the pair of shaft support portions on one end side. A pair of support portions that rotatably support the inner lid are formed, and a protrusion portion sandwiched between the two protrusions is formed with the inner lid closed .

As a result, it is possible to suppress rattling of the inner lid, suppress the generation of abnormal noise due to vibration during dehydration, and improve quietness.

In the third invention, in particular, the protrusion of the first or second invention rotates to a position avoided from the protrusion by opening the inner lid.

Since the inner lid is rotated to a position avoiding the protrusion with the inner lid open, the mounting workability of the inner lid is not impaired.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments shown below are examples that embody the present invention, and do not limit the technical scope of the present invention. Further, the same reference numerals are given to the components common to the conventional configuration, and the description thereof will be omitted.

FIG. 1 is a cross-sectional view showing the overall configuration of the washer / dryer according to the present embodiment. The washer-dryer of the present embodiment is provided with a drying function in addition to the washing and dehydrating functions.

Inside the housing 1, the outer tank 3 is supported by a vibration-proof structure elastically suspended by a plurality of suspensions 2, and is configured to be able to absorb vibration during dehydration by the suspension 2. An inner tank 4 is arranged in the outer tank 3, and a stirring blade 6 is arranged at the bottom of the inner tank 4. The stirring blade 6 and the inner tank 4 are rotationally driven by switching the rotation of the motor 8 attached to the bottom of the outer tank 3 by the clutch 9.

The upper opening of the outer tub 3 is closed by the outer tub cover 11, and the outer tub cover 11 is provided with an inner lid 13 that can be opened and closed. The outer tank cover 11 is provided with a warm air outlet 20 so as to communicate with the inner tank 4 having an upper opening, and a water supply port 16 at a position parallel to the hot air outlet 20. Further, a drainage port 21 and an exhaust port 22 are provided at the bottom of the outer tank 3, and the drainage port 21 is configured so that the water in the outer tank 3 can be discharged to the outside through the drain valve 26.

The exhaust port 22 forms a circulation path for drying air, and the warm air sent from the warm air outlet 20 into the inner tub 4 deprives the inner tub 4 of the moisture of the laundry, and the inner tub 4 The air containing moisture that has come out of the outer tank 3 is guided to the outside through a small hole (not shown) formed on the peripheral surface of the outer tank 3. The exhaust port 22 is connected to the heat exchanger 12 via the lower bellows hose 23 and the circulation path switching valve 24. The heat exchanger 12 is connected to the warm air outlet 20 from the upper bellows hose 17 via a blower pipe line 35 provided with a circulation fan 18 and a heater 19, and a circulation path for drying air is formed by blowing air from the circulation fan 18. Will be done.

The upper portion of the housing 1 is closed by a housing cover 15 provided with an outer lid 14 that can be opened and closed. An operation panel (not shown) is provided on the outer surface of the housing cover 15, and operation information from the operation panel is input to the control device 10 arranged in the housing cover 15 to control each part by the control device 10. The washing and drying operations are performed.

The outer lid 14 and the inner lid 13 are opened, the laundry is put into the inner tub 4, and the washing course, the drying course, or the course from washing to drying is set from the operation panel. Further, when the washing condition or the drying condition is selected, the control device 10 automatically executes the washing process and the drying process by the control according to the set and selected contents.

FIG. 2 shows a control circuit configuration by the control device 10. The control device 10 includes a control means 40 configured by a microcomputer, a motor drive circuit 41 for supplying control power to a motor 8, a heater 19, and a circulation fan 18. , A power switching means 42 for switching and controlling a clutch 9, a circulation path switching valve 24, a drain valve 26, etc., a notification means 45 for acoustically notifying a setting input or an abnormal state, a storage means 46 for storing information necessary for control operation, a motor. A rotation speed detecting means 47 that detects the rotation speed of 8, a cloth amount detecting means 48 that detects the amount of laundry contained in the inner tub 4, and a power supply circuit 50 that supplies operating power to the motor 8 and the control circuit. It is configured in preparation.

The control means 40 is input with the detection output from the water amount detecting means 49 for detecting the amount of water in the inner tank 4, and is input with the setting information from the setting input means 43 which is an operation button provided on the operation panel. Further, the state in which the setting is input, the abnormal state, and the like are displayed on the operation display means 44 provided on the operation panel. The washer / dryer is connected to the AC power supply 51 by inserting the power cord into the power outlet, and the power switch 52 is turned on by operating the power button provided on the operation panel to energize the control circuit, and the washer / dryer is energized. It becomes operable.

In the washing process, the outer lid 14 and the inner lid 13 are opened, the laundry and the detergent are put into the inner tub 4, and the setting input for washing or washing and then drying is input from the operation panel, and the washing course is selected. And / or select a drying course.

When the operation start input is made by the start button, the control device 10 connects the motor 8 to the stirring blade 6 by the clutch 9, rotates the stirring blade 6, and the amount of laundry charged by the cloth amount detecting means 48. Is detected, a water supply valve (not shown) is opened to supply water to the inner tank 4 to a predetermined water level corresponding to the amount of laundry. When water is supplied to a predetermined water level, a washing operation of stirring the laundry and water is performed by rotationally driving the stirring blade 6 by the motor 8.

When the washing process is completed, the drain valve 26 is opened to drain the water in the inner tub 4 and the outer tub 3 to the outside, the motor 8 is connected to the inner tub 4 by the clutch 9, and the inner tub 4 is rotated by the rotation of the motor 8. It is driven to rotate. Moisture contained in the laundry is separated by the centrifugal force due to the rotation of the inner tub 4, and dehydration is performed to discharge the water into the outer tub 3 from the small holes formed in the inner tub 4, and the drain valve 26 is opened to dehydrate the laundry. Drain the water to the outside.

After performing the dehydration operation, the drain valve 26 is closed, the water supply valve is opened to supply water into the inner tank 4, the stirring blade 6 is rotated to stir the laundry, and the inner tank 4 is rotated to dehydrate the laundry. Is carried out to remove the detergent component contained in the laundry.

If it is set to carry out the drying process after the washing process is completed, the drain valve 26 is closed and the circulation path switching valve 24 is opened to form an air circulation path. The heater 19 and the circulation fan 18 are energized to supply air to the circulation path while performing the stirring operation of peeling off the laundry stuck to the peripheral wall of the inner tank 4 by dehydration by the rotation operation of rotating the stirring blade 6 in the forward and reverse directions. A circulating drying operation is performed.

The air blown from the circulation fan 18 is heated by the heater 19 to become warm air, and the warm air is sent into the inner tank 4 through the upper bellows hose 17 and the warm air outlet 20, and the moisture from the agitated laundry. To evaporate. Moisture-containing air exits into the outer tank 3 through a small hole on the peripheral surface of the inner tank 4, passes through the exhaust port 22, the lower bellows hose 23, and the circulation path switching valve 24, and passes through the heat exchanger 12. When passing through the heat exchanger 12, the heat exchanger 12 is air-cooled by a blower (not shown) and / or is cooled by injecting water into the heat exchanger 12, so that condensation of water occurs. It is dehumidified. The dehumidified air is again sent out to the heater 19 by the circulation fan 18, and the warm air heated by the heater 19 is sent back to the inner tank 4. This air circulation dries the laundry.

FIG. 3 is a plan view showing the configuration of the outer tank cover and the inner lid of the present embodiment, FIG. 4 is a cross-sectional view showing a state in which the inner lid is open, and FIG. 5 is a state in which the inner lid is closed. A cross-sectional view is shown, FIG. 6 is a plan view showing a state in which the inner lid is removed from the outer tank cover, and FIG. 7 is an enlarged cross-sectional view of a main part in a state where the inner lid is closed.

The configurations of the outer tank cover 11 and the inner lid 13 will be described with reference to FIGS. 3 to 7. An outer tub cover 11 is attached to the upper opening of the outer tub 3 so as to seal the upper opening.

A pair of substantially L-shaped shaft support portions 37a and 37b are formed on the upper surface of the outer tank cover 11, and the outer peripheral side of the shaft support portions 37a and 37b extends to the inner lid 13 side and bearings on the inner peripheral side. The portion 37c is formed. A contact portion 32 is formed between the shaft support portions 37a and 37b. The contact portion 32 is formed in a substantially L-shaped cross section in which the side separated from the inner lid 13 is higher, and the protruding portion 33 formed on the inner lid 13 is in contact with the contact portion 32, and the inner lid 13 is opened and closed. It is configured to keep it in the same state. The contact portion 32 is formed with a protrusion 34 on the inner lid 13 side of the substantially central portion.

The inner lid 13 is formed with a support portion 31 corresponding to the shaft support portions 37a and 37b of the outer tank cover 11 on one end side. A fixed shaft 31a is formed on one end side of the support portion 31, and a movable shaft 31b urged on the outer peripheral side by a spring (not shown) is arranged on the other end side. The inner lid 13 is mounted by supporting the fixed shaft 31a to one bearing portion 37c and pivotally supporting the other bearing portion 37c by moving the movable shaft 31b. By providing the movable shaft 31b, it is possible to reduce the rattling between the shaft support portions 37a and 37b and the support portion 31.

The inner lid 13 is formed with a protruding portion 33 corresponding to the contact portion 32. The protrusion 33 has a recess 38 formed corresponding to the protrusion 34, and the protrusion 34 is fitted into the recess 38 with the inner lid 13 closed, and the protrusion 34 is sandwiched between the protrusions 33. , Prevents rattling between the shaft support portions 37a and 37b and the support portion 31.

At a position below the abutting portion 32, a recessed portion 36 is formed in which the protruding portion 33 avoids the protruding portion 34 while the inner lid 13 is open.

The inner lid 13 is provided with a hook portion 39 on the other end side facing the support portion 31, and with the inner lid 13 closed, the hook portion 39 is engaged with the outer tank cover 11 to engage the inner lid 13. It is configured to keep the other end side closed without rattling.

In the washing / drying machine of the present embodiment, when the washing, dehydrating, and drying processes are performed, the vibration during dehydration is transmitted from the outer tub cover 11 to the inner lid 13, but the protrusions are formed with the inner lid 13 closed. The portion 34 is fitted into the recess 38, and the protrusion 34 is sandwiched between the protrusions 33 to prevent rattling between the shaft support portions 37a and 37b and the support portion 31. As a result, it is possible to suppress the generation of abnormal noise and perform dehydration with high quietness, which makes the washer / dryer suitable for operation at night.

In the present embodiment, the protrusion 34 formed on the outer tank cover 11 is sandwiched by the protrusion 33 formed on the inner lid 13, but the protrusion 34 formed on the outer tank cover 11 is the inner lid 13. The protrusion 33 formed in the above may be sandwiched.

Further, although the present embodiment has been described by taking a washer / dryer as an example, the present embodiment is not limited to the washer / dryer and can be applied to the washing machine.

As described above, the washing machine according to the present invention suppresses the generation of abnormal noise and enables highly quiet operation. Therefore, as in the embodiment, the washing machine or household use only. It can also be applied to business use.

1 Housing 2 Suspension 3 Outer tank 4 Inner tank 6 Stirring blade 8 Motor 11 Outer tank cover 12 Heat exchanger 13 Inner lid 14 Outer lid 15 Housing cover 17 Upper bellows hose 18 Circulation fan 19 Heater 20 Warm air outlet 21 Drainage Port 22 Exhaust port 23 Lower bellows hose 24 Circulation path switching valve 31 Support part 31a Fixed shaft 31b Movable shaft 32 Contact part 33 Protruding part 34 Protruding part 35 Blower pipe line 37a Shaft branch part 37c Bearing part 38 Recessed part 39 Hook part

Claims (3)

The housing that constitutes the exterior, the outer tank that is vibration-proof supported inside the housing, the inner tank that is rotatably arranged inside the outer tank, and the clothing inlet provided on the upper surface of the housing are opened and closed. It is provided with an outer lid that can be freely closed, an outer tank cover that covers the upper opening of the outer tank, and an inner lid that can open and close the opening formed in the outer tank cover.
In the outer tank cover , a pair of shaft support portions are formed on the upper surface thereof, and a protrusion is formed between the pair of shaft support portions .
The inner lid forms a pair of support portions that rotatably support the inner lid corresponding to the pair of shaft support portions on one end side, and the protrusions are formed in a state where the inner lid is closed. A washing machine that forms two protrusions to be sandwiched. The housing that constitutes the exterior, the outer tank that is vibration-proof supported inside the housing, the inner tank that is rotatably arranged inside the outer tank, and the clothing inlet provided on the upper surface of the housing are opened and closed. It is provided with an outer lid that can be freely closed, an outer tank cover that covers the upper opening of the outer tank, and an inner lid that can open and close the opening formed in the outer tank cover.
In the outer tank cover , a pair of shaft support portions are formed on the upper surface thereof, and two protrusions are formed between the pair of shaft support portions .
The inner lid forms a pair of support portions that rotatably support the inner lid corresponding to the pair of shaft support portions on one end side, and the two protrusions with the inner lid closed. A washing machine that forms a protrusion that is sandwiched between the two. The washing machine according to claim 1 or 2, wherein the protruding portion rotates to a position avoided from the protruding portion by opening the inner lid.

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