JP3855751B2 - Washing and drying machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing and drying machine having a process of blowing warm air into an inner tub to dry laundry, and being able to carry out consistently from washing to drying.
[0002]
[Prior art]
Conventionally, this type of washing and drying machine is configured as shown in FIGS. Hereinafter, the configuration will be described.
[0003]
As shown in FIG. 9, the casing 1 supports the outer tank 2 having a rotation center axis in a substantially vertical direction by a suspension 3 so as to support the suspension. An inner tub 4 having a large number of vent holes 4 a is rotatably provided inside the outer tub 2, a rotary blade 5 is rotatably provided at the center bottom of the inner tub 4, and a fluid balancer 6 is provided above the inner tub 4. ing. A motor 7 is provided below the outer tub 2, and a hollow and biaxially structured washing / dehydrating shaft 8, and a clutch 9 that switches the transmission of rotational force to the washing / dehydrating shaft 8 during washing or dehydration, It is connected to the tank 4 or the rotary blade 5.
[0004]
The drying blower 10 blows the warm air heated by the heater 11 into the inner tank 4 from the warm air outlet 12, and is provided substantially above the housing 1. The drying blower 10, the heater 11, Constitutes the hot air supply means. The heat exchange duct 13 performs dehumidification of wet hot air, and has one end connected to the connection duct 15 connected to the drainage passage port 14 of the outer tub 2 and the other end connected to the drying fan 10.
[0005]
The drain valve 16 is fixed to the bottom of the outer tub 2, and drains from the drain passage port 14 and the heat exchange duct 13 are guided to the drain valve 16 through the drain duct 17 and drained from the drain hose 18 to the outside of the machine. ing. The outer tub cover 19 covers the upper surface of the outer tub 2 in an airtight manner, and an inner lid 20 is provided on the outer tub cover 19 so as to be freely opened and closed so that clothes can be taken in and out.
[0006]
As shown in FIG. 10, the inner lid 20 has a shaft 21 on the shaft support side, and a bearing member 22 that supports the shaft 21 is fastened and fixed to the outer tank cover 19 with a tapping screw 23. The cooling fan 24 introduces cooling air into the housing 1 from the outside, and is provided on the side wall of the housing 1.
[0007]
The operation in the above configuration will be described. In the washing process, clothes, water or hot water and detergent are put into the inner tub 4, the clutch 9 of the transmission mechanism is set to the washing side, and the power of the motor 7 is transmitted to the rotary blade 5 through the washing shaft. The rotor 5 is rotated and the clothes are agitated and washed in the water. Thereafter, the drain valve 16 is opened to drain the water, and water is supplied again in the rinsing process to rinse the clothes in the same manner as the washing process.
[0008]
In the dehydration process, after rinsing is completed, the water in the inner tub 4 is drained by opening the drain valve 16, and then the clutch 9 of the transmission mechanism is switched to the dewatering side, and the power of the motor 7 is transferred to the inner tub 4 via the dewatering shaft. The process proceeds by separating the moisture from the laundry by applying a centrifugal force to the laundry.
[0009]
In the drying process, first, the rotating blade 5 is rotated in the forward and reverse directions so that the clothes stuck to the inner wall of the inner tank 4 are peeled off by centrifugal force during dehydration, and then the rotating blade 5 is instantaneously moved in the forward and reverse directions. The clothes are agitated so that the clothes are lifted upward in the inner tub 4 by being rotated strongly. At the same time, warm air is sent to the warm air outlet 12 by the warm air supply means comprising the drying fan 10 and the heater 11.
[0010]
The hot air blown into the inner tub 4 from the hot air outlet 12 evaporates moisture from the clothes, and then drains the passage 14, the connection duct 15, the heat exchange duct 13, and the drying provided in the lower part of the outer tub 2. The air blower 10, the heater 11, and the hot air outlet 12 are circulated. The hot and humid air from which moisture is evaporated from the clothing is cooled and dehumidified by the cooling fan 24 when passing through the outer tub 2 and the heat exchange duct 13, and then again the drying fan 10 and the heater 11. Will return. Thereby, drying advances.
[0011]
[Problems to be solved by the invention]
In such a conventional configuration, the outer tub cover 19 becomes high temperature during the drying operation, and the drying is completed and the outer tub cover 19 is gradually cooled. Therefore, each time this process is repeated, the outer tub cover 19 is screwed together. The portion of the outer tub cover 19 that expands and contracts. As a result, the tapping screw 23 gradually loses the screwing force, the fixing of the bearing member 22 becomes unstable, and there is a problem that the inner lid 20 rattles when the inner lid 20 is opened and closed.
[0012]
SUMMARY OF THE INVENTION The present invention solves the above-described problems, and aims to stabilize the fixing of the shaft support portion of the inner lid regardless of the expansion and contraction due to the temperature change of the outer tub cover and improve the usability when opening and closing the inner lid. .
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the present invention rotatably supports an inner tub that accommodates laundry in an outer tub that is elastically suspended within the housing, and an upper metal on the upper opening side of the outer tub. A substantially donut-shaped outer tub cover configured by overlapping a material member and a lower resin material member is disposed, and the lower metal material member is screwed to the upper resin material member at the inner opening of the outer tub cover. open and close the upper opening direction by inner lid configured, the hot air for drying the inner tank and configured to supply the warm air supply means, the inner lid, have a shaft in the axial support side, the shaft the biasing spring is mounted for biasing the inner lid in the opening direction, on the upper surface side of the outer tub cover, and a bearing member for axially supporting the shaft, the outer tub cover side of the biasing spring provided above the bearing member and a holding member for covering the end portion is provided, on the lower surface side of the outer tub cover has a lower resin material member one The surrounding wall enclosing the formed angle nut provided, fixing the screw upwardly from the holding member of the outer tub cover, bearing member, by screwing the corner nut sandwiches the upper metallic material member and the lower of the resin material member In addition, a cover body that covers the square nut and the surrounding wall from the lower side of the outer tub cover is provided .
[0014]
Thus, the expansion due to temperature changes of the outer tub cover, regardless of the contraction, the fixed shaft support of the inner lid can be stabilized, it is possible to improve usability at the time of the inner lid closing Rutotomoni, the inner tank wounded of clothing, Ru can be prevented torn.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 of the present invention includes an outer tub that is elastically suspended inside a housing, an inner tub that is rotatably supported in the outer tub and accommodates laundry, and an upper portion of the outer tub. A substantially donut-shaped outer tub cover that is arranged on the opening side and is formed by stacking an upper metal material member and a lower resin material member, and is configured by screwing the lower metal material member to the upper resin material member. An inner lid that opens and closes the inner opening of the outer tub cover in the upward opening direction, and hot air supply means for supplying warm air for drying into the inner tub, the inner lid being provided on the pivot side thereof have a shaft, said shaft biasing spring for biasing the inner lid in an opening direction is mounted on the upper surface side of the outer tub cover has a bearing member for axially supporting the shaft, the bearing member and a holding member disposed above cover the end portion of the outer tub cover side of the biasing spring provided, before Kigaisoka On the lower surface side of the chromatography, the lower resin material member and surrounding wall enclosing the formed angle nut integrally formed, the holding member screws from above of the outer tub cover, the bearing member, the upper metallic material It is fixed by screwing to the angle nut sandwiches the members and below the resin material member, which has a cover body covering the angle nut and the surrounding wall from below of the outer tub cover, the outer tub When the screw is tightened from the top of the cover, the surrounding wall can prevent the square nut from rotating in the tightening rotation direction, and the bearing member can be attached to the outer tank cover regardless of expansion or contraction due to the temperature change of the outer tank cover. The fixation can be stabilized, the fixation of the shaft support portion of the inner lid can be stabilized, and the usability when opening and closing the inner lid can be improved . Also, the cover body can be prevented from falling before the angular nut tightening the screw, and after tightening the screws also by covering the screw tip that projects from the corner nut and angular nut, clothing inner tank Damage and tear can be prevented .
[0016]
【Example】
Embodiments of the present invention will be described below with reference to the drawings. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description.
[0017]
Example 1
As shown in FIGS. 1 and 2, the outer tub cover 25 is formed in a substantially donut shape and disposed on the upper opening side of the outer tub 2, and a metal material member 26 such as a stainless steel plate and a resin such as polypropylene resin. It is comprised with the material member 27, and the inward opening part 28 is provided so that clothes can be taken in and out.
[0018]
As shown in FIG. 3, the inner lid 29 is configured such that a metal material member 30 such as a stainless steel plate is fastened to a resin material member 32 such as polypropylene resin with a screw 31, and a packing member 33 is provided on the lower surface of the outer peripheral edge of the inner lid 29. Provided. The packing member 33 has a shape indicated by a thin line when not deformed. However, when the inner lid 29 is closed, the packing member 33 is deformed as indicated by a solid line while being deformed as shown by a solid line. And the airtightness between the inner lid 29 and the outer tank cover 25 is maintained.
[0019]
As shown in FIGS. 1 and 4, a metal member 34 is attached to the shaft support side of the inner lid 29, and both ends of a metal shaft 35 are supported through the metal member 34 and screwed to the outer tank cover 25. As shown in FIG. 5, the metal bearing member 38 fixed by the 36 and the square nut 37 is provided with a notch hole 40 into which both ends of the shaft 35 can be inserted from the rear of the inner lid 29. By inserting the shaft 35 into the shaft 40, a hinge is constituted by the metal member 34, the shaft 35 and the bearing member 38, and the inner lid 29 is pivotally supported so as to be opened and closed in the upward opening direction. A biasing spring 39 is attached to constantly bias the inner lid 29 in the opening direction.
[0020]
Further, as shown in FIG. 6, the holding member 43 forms a bent portion 43a, and supports the end surface 41 of the shaft 35 by the bent portion 43a and supports the rear of the shaft 35 in the vicinity of the notch hole 40. In addition, it is provided so as to cover the end face 42 of the urging spring 39, and the screw 44 and the square nut 45 are screwed and fastened so as to sandwich the holding member 43, the bearing member 38, and the outer tank cover 25. .
[0021]
The operation in the above configuration will be described. Since the operation from the washing process to the dehydration process is the same as that in the conventional example, the description thereof is omitted.
[0022]
In the drying process, first, the rotating blade 5 is rotated in the forward and reverse directions so that the clothes stuck to the inner wall of the inner tank 4 are peeled off by centrifugal force during dehydration, and then the rotating blade 5 is instantaneously moved in the forward and reverse directions. The clothes are agitated so that the clothes are lifted upward in the inner tub 4 by being rotated strongly. At the same time, warm air is sent to the warm air outlet 12 by the warm air supply means comprising the drying fan 10 and the heater 11.
[0023]
The hot air blown into the inner tub 4 by the hot air outlet 12 evaporates moisture from the clothing, and then drains the passage 14, the connection duct 15, the heat exchange duct 13, and the drying duct provided at the lower part of the outer tub 2. It is guided to the blower 10, the heater 11, and the hot air outlet 12 to circulate. The hot and humid air from which moisture is evaporated from the clothing is cooled and dehumidified by the cooling fan 24 when passing through the outer tub 2 and the heat exchange duct 13, and then again the drying fan 10 and the heater 11. Return to dry.
[0024]
During drying, since warm air is constantly supplied into the outer tub 2 by the hot air supply means, the outer tub cover 25 becomes high temperature, and when the drying process is completed, the outer tub cover 25 is gradually cooled to the ambient atmosphere level. The At this time, the resin material member 27 in the outer tub cover 25 is expanded and contracted, but the other metal parts and the screws 36 and 44 and the square nuts 37 and 45 are made of metal, so that a dimensional change due to a temperature change is extremely small. The screws 36 and 44 are less likely to loosen, and the bearing member 38 and the holding member 43 are firmly fixed. As a result, the usability when opening and closing the inner lid 29 can be improved.
[0025]
Needless to say, the square nuts 37 and 45 may be square bag nuts, and the same effect can be obtained.
[0026]
Further, in order to reduce the thickness of the resin material member 27 due to repeated temperature changes, the heat resistance of the resin material member 27 is improved, a spring washer is provided below the heads of the screws 36, 44, If an adhesive is applied to the screw portion 44, the loosening prevention effect increases.
[0027]
(Example 2)
As shown in FIG. 7, the outer tub cover 25a is formed in a substantially donut shape and is disposed on the upper opening side of the outer tub, and is composed of a metal material member 26a such as a stainless steel plate and a resin material member such as polypropylene resin. 27a, an enclosure wall 46 is provided on the lower surface side of the resin material member 27a of the outer tub cover 25a, square nuts 37 and 45 are installed in the enclosure wall 46, and screws are respectively attached to the square nuts 37 and 45. 36, screws 44 are screwed together while sandwiching the bearing member 38 and the holding member 43 from above the outer tank cover 25a.
[0028]
Further, a cover body 47 is provided so as to cover the square nuts 37 and 45 and the surrounding wall 46 from below, and the vicinity of the center of the cover body 47 is fastened and fixed to the outer tub cover 25a with a tapping screw 48 from below. Other configurations are the same as those of the first embodiment.
[0029]
The operation in the above configuration will be described. When the square nuts 37 and 45 are installed in the surrounding wall 46 with the outer tank cover 25a facing back, and then the cover body 47 is fastened and fixed to the outer tank cover 25a with the tapping screw 48. When the outer tank cover 25a is returned to the surface and the screws 36 and 44 are tightened, the square nuts 37 and 45 are not dropped and tightened without being held, so that the assembly workability can be improved.
[0030]
Further, since the square nuts 37 and 45 and the screw 36 and the screw tip of the screw 44 are not exposed below the outer tub cover 25a, even if the clothes in the inner tub 4 rise and are pressed below the outer tub cover 25a. , Can prevent the clothes from being damaged or torn.
[0031]
It is possible to install the square nuts 37 and 45 on the cover body 47 side without the surrounding wall 46, but the square nuts 37 and 45 can fall when the cover body 47 is set on the outer tank cover 25a. Therefore, workability is lower than in this embodiment.
[0032]
(Example 3)
As shown in FIG. 8, the outer tub cover 25b is formed in a substantially donut shape and is disposed on the upper opening side of the outer tub, and is composed of a metal material member 26b such as a stainless steel plate and a resin material member such as polypropylene resin. 27b, and square nuts 37 and 45 are insert-molded on the substantially lower surface side of the resin material member 27b of the outer tank cover 25b, and screws 36 and 44 are respectively attached to the square nuts 37 and 45. The bearing member 38 and the holding member 43 are screwed together while being sandwiched from above. Other configurations are the same as those of the first embodiment.
[0033]
The operation in the above configuration will be described. When assembling the unit of the outer tank cover 25b, the trouble of setting the square nuts 37 and 45 to the outer tank cover 25b can be saved, and also when the screws 36 and 44 are tightened, Since the nuts 37 and 45 are not dropped and tightened without being held, the assembly workability can be improved.
[0034]
Moreover, since the screw | thread tip part of the square nuts 37 and 45 and the screws 36 and 44 is not exposed below the outer tank cover 25b, even if the clothing in the inner tank 4 rises and is pressed below the outer tank cover 25b, It can prevent the clothing from being damaged or torn. Furthermore, since the number of parts can be minimized, the cost can be reduced.
[0035]
Needless to say, the square nuts 37 and 45 may be square bag nuts, and the same effect can be obtained.
[0036]
【The invention's effect】
As described above, according to the first aspect of the present invention, the outer tub elastically suspended inside the housing, the inner tub that is rotatably supported in the outer tub and accommodates the laundry, A substantially donut-shaped outer tank cover which is arranged on the upper opening side of the outer tub and is formed by stacking an upper metal material member and a lower resin material member; and screwing the lower metal material member on the upper resin material member comprising a lid inner opening and closing the upper opening direction the inner opening part of the outer tub cover configured to stop, and a hot air supply means for supplying hot air for drying in said tank, said lid , have a shaft in the axial support side, said shaft biasing spring for biasing the inner lid in an opening direction is mounted on the upper surface side of the outer tub cover, bearing members for supporting the shaft When a holding member provided above the bearing member covers the end portion of the outer tub cover side of the biasing spring Provided on the lower surface side of the front Kigaiso cover, the enclosure wall containing the formed angle nut integral with a resin material member of said lower provided, the holding member screws from above of the outer tub cover, the bearing member Since the upper metal material member and the lower resin material member are sandwiched and fixed by screwing into the square nut, a cover body that covers the square nut and the surrounding wall is provided from below the outer tank cover. When the screw is tightened from above the outer tank cover, the surrounding wall can prevent the square nut from rotating together in the tightening rotation direction, and the outer tank of the bearing member can be used regardless of expansion or contraction due to temperature change of the outer tank cover. Fixing to the cover can be stabilized, and usability when opening and closing the inner lid can be improved . Also, the cover body can be prevented from falling before the angular nut tightening the screw, and after tightening the screws also by covering the screw tip that projects from the corner nut and angular nut, clothing inner tank Damage and tear can be prevented .
[ Brief description of the drawings]
FIG. 1 is a cross-sectional view of the main part of the inner lid of the washer / dryer according to the first embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the washer / dryer. A plan view with a part of the lid cut away [Fig. 4] A plan view with a part of the outer tub cover attached with the inner lid of the washer / dryer [Fig. 5] Sectional view [FIG. 6] An enlarged plan view of part A on the shaft support side of the inner lid of the washer / dryer [FIG. Sectional view [FIG. 8] Cross-sectional view of the main part of the shaft support side of the outer tub cover of the washing and drying machine of the third embodiment of the present invention [FIG. An enlarged cross-sectional view of the main part of the inner lid of the washer / dryer [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing | casing 2 Outer tank 4 Inner tank 10 Drying fan (hot air supply means)
11 Heater (hot air supply means)
25 Outer tank cover 28 Inner opening 29 Inner lid 35 Shaft 36 Screw 37 Square nut 38 Bearing member

Claims (1)

An outer tub that is elastically suspended inside the housing, an inner tub that is rotatably supported in the outer tub and accommodates laundry, an upper metallic material member and a lower portion disposed on the upper opening side of the outer tub A substantially donut-shaped outer tub cover configured by overlapping the resin material members, and a lower metal material member screwed to the upper resin material member, and the inner opening of the outer tub cover is opened upward and inner lid for opening and closing, the a hot air supply means for supplying hot air for drying in said tank, said lid have a shaft in the axial support side, the inner lid to said shaft the attached biasing spring for biasing in the opening direction, on the upper surface side of the outer tub cover has a bearing member for axially supporting the shaft, the outer tub of the biasing spring provided above the bearing member provided a holding member for covering the end portion of the cover side, on the lower surface side of the front Kigaiso cover, the lower the resin The charge member and surrounding wall enclosing the formed angle nut integrally formed, the holding member screws from above of the outer tub cover, the bearing member, by sandwiching the upper metallic material member and the lower of the resin material member A washing and drying machine provided with a cover body that is fixed by being screwed to a square nut and covers the square nut and the surrounding wall from below the outer tank cover .

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