CN111032944B - Washing and dewatering cylinder and washing machine - Google Patents
Washing and dewatering cylinder and washing machine Download PDFInfo
- Publication number
- CN111032944B CN111032944B CN201780094135.0A CN201780094135A CN111032944B CN 111032944 B CN111032944 B CN 111032944B CN 201780094135 A CN201780094135 A CN 201780094135A CN 111032944 B CN111032944 B CN 111032944B
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- cylindrical body
- washing
- pressing member
- annular
- peripheral surface
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
- D06F39/12—Casings; Tubs
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
- D06F37/12—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a vertical axis
Abstract
A washing and dehydrating cylinder is provided with: a metal cylindrical body section (101); a bottom section (102) which is arranged on the lower end side of the cylindrical body section (101) and is made of synthetic resin; an annular gasket (104) held between the inner peripheral surface of the cylindrical body section (101) and the outer peripheral surface of the bottom section (102); and an annular pad pressing member (103) attached to the bottom section (102) so as to press the annular pad (104) held between the inner peripheral surface of the cylindrical body section (101) and the outer peripheral surface of the bottom section (102) from below by the upper end of the annular pad pressing member. A recessed part (105) is provided on the outer peripheral side of an annular gasket pressing member (103) and in a region along the longitudinal direction of a cylindrical body part (101) that faces the lower end of a joint (S), and a seal member (111) is fitted into the recessed part (105) so as to cover the lower end of the joint (S) of the cylindrical body part (101). Thus, a washing and dehydrating cylinder is provided, which can prevent the water sealing performance from reducing caused by the joint part of the cylindrical machine body part (101), and can maintain high water sealing performance.
Description
Citation description
The present application claims priority to japanese application 2017-162754, which was filed 8/25/2017, and the entire contents of the japanese application are incorporated herein by reference.
Technical Field
The invention relates to a washing and dehydrating tub and a washing machine.
Background
Conventionally, a washing and dewatering tub includes a cylindrical body portion made of stainless steel plate and a bottom portion made of synthetic resin attached to a lower end of the cylindrical body portion, and is disposed in a washing machine water tank (for example, japanese patent application laid-open No. 2017042273 (patent document 1)).
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2017-042273
Disclosure of Invention
Problems to be solved by the invention
However, in the conventional washing and dehydrating tub, in order to ensure a water-tight seal between the inner peripheral surface of the lower end of the cylindrical body portion and the outer peripheral surface of the bottom portion, an annular gasket is disposed in the entire circumferential direction therebetween. However, in the above-described washing and dehydrating tub, in order to form the cylindrical body portion by bending the stainless steel plate, the joint portion of the cylindrical body portion is connected by folding or welding, and does not have a smooth plane but has an uneven shape. Therefore, in the above-described washing and dehydrating tub, there is a problem that the shape following property of the annular gasket is deteriorated in the joint portion of the cylindrical body portion, and a water seal failure is easily generated.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a washing and dehydrating tub and a washing machine that can prevent a decrease in water tightness at a joint portion of a cylindrical body portion and can maintain a high water tightness.
Means for solving the problems
The washing and dehydrating tub according to an embodiment of the present invention includes:
a metal cylindrical body section;
a bottom portion which is arranged on a lower end side of the cylindrical body portion and is made of synthetic resin;
an annular packing held between an inner peripheral surface of the cylindrical body section and an outer peripheral surface of the bottom section;
an annular pad pressing member attached to the bottom portion so as to press the annular pad held between the inner peripheral surface of the cylindrical body portion and the outer peripheral surface of the bottom portion from below by an upper end of the annular pad pressing member,
a recessed portion is provided in a region along the longitudinal direction of the cylindrical body section on the outer peripheral side of the annular pad pressing member and facing the lower end of the joint,
the seal member is fitted into the recess portion to cover a lower end of the joint of the cylindrical body section.
Advantageous effects
As apparent from the above, according to the present invention, it is possible to realize a washing and dehydrating tub and a washing machine that can prevent a decrease in water-tightness due to a seam portion of a cylindrical body part and maintain high water-tightness by fitting a sealing member into a recess provided on an outer peripheral side of an annular packing pressing member and in a region facing a lower end of the seam of the cylindrical body part to cover the lower end of the seam of the cylindrical body part.
Drawings
Fig. 1 is an external perspective view of a vertical washing machine as an example of a washing machine according to a first embodiment of the present invention.
Fig. 2 is a plan view of the vertical washing machine.
Fig. 3 is a longitudinal sectional view showing a view from the line III-III of fig. 2.
Fig. 4 is a longitudinal sectional view of a main portion of fig. 3 enlarged.
FIG. 5 is a rear view of the washing and dehydrating tub.
Fig. 6 is a longitudinal sectional view as viewed from line VI-VI of fig. 5.
Fig. 7 is an enlarged sectional view of the region a of fig. 6.
Fig. 8 is an enlarged sectional view of the region B of fig. 6.
FIG. 9 is an exploded perspective view of the washing and dehydrating tub.
Fig. 10 is a perspective view of the bottom of the washing and dehydrating tub as viewed obliquely from below.
Fig. 11 is a side view of a joint portion of the cylindrical body portion of the washing and dehydrating tub.
Fig. 12A is a sectional view viewed from the XIIA-XIIA line of fig. 11.
Fig. 12B is a sectional view viewed from the xib-xib line of fig. 11.
Fig. 12C is a cross-sectional view from the xic-xic line of fig. 11.
Fig. 13A is a perspective view of a main part of the washing and dehydrating tub as viewed obliquely from below.
Fig. 13B is a perspective view of a main part of the washing and dehydrating tub as viewed obliquely from below.
Fig. 14 is a sectional view viewed from XIV-XIV line of fig. 13B.
Fig. 15 is a sectional view of a main part of a washing and dehydrating tub of a vertical type washing machine as an example of a washing machine according to a second embodiment of the present invention.
Fig. 16 is a sectional view of a main part of a washing and dehydrating tub of a vertical type washing machine as an example of a washing machine according to a third embodiment of the present invention.
Detailed Description
Hereinafter, the washing and dehydrating tub and the washing machine according to the present invention will be described in detail with reference to the illustrated embodiments.
(first embodiment)
Fig. 1 is an external view showing a vertical washing machine as an example of a washing machine according to a first embodiment of the present invention, viewed from obliquely above from the front side, and fig. 2 is a plan view showing the vertical washing machine.
As shown in fig. 1 and 2, the vertical washing machine according to the first embodiment includes: a main body case 1 made of metal or synthetic resin, an upper cover 4 for opening and closing the openings of the water tank 2 (shown in fig. 3) and the washing and dehydrating tub 100 (shown in fig. 3), and an operation display part 5 provided on the upper surface of the main body case 1. The user operates the operation display unit 5 to select an operation. The operation display unit 5 displays the operation state by characters, numerals, and the like.
Fig. 3 is a cross-sectional view taken along line III-III of fig. 2. In fig. 3, 60 is a lint picker.
As shown in fig. 3, the vertical washing machine has a main body casing 1 formed in a rectangular tubular shape, and has an upper surface opening portion on the upper surface and a lower surface opening portion on the lower surface. An upper panel 11 made of synthetic resin and provided with an operation display portion 5 and the like is fixed to an upper surface opening portion of the main body case 1. A base 12 made of synthetic resin is fixed to the lower surface opening of the main body case 1.
A laundry inlet 1a for introducing laundry into the vertical washing machine is provided in the upper panel 11. The upper cover 4 for opening and closing the laundry inlet 1a is rotatably supported by the upper panel 11 on the back side (rear side) of the vertical washing machine. The laundry inlet 1a is opened and closed by vertically rotating the lid 4.
A water tub 2 is disposed in the main body case 1, and a washing and dehydrating tub 100 is disposed in the water tub 2. That is, the washing and dehydrating tub 100 and the water tub 2 accommodating the washing and dehydrating tub 100 are accommodated in the main body case 1. Water for washing the laundry or water for rinsing the laundry is stored in the washing and dehydrating tub 100. The water tub 2 and the washing and dehydrating tub 100 are each formed in a bottomed cylindrical shape with an upper opening, and a central axis thereof is parallel to a vertical direction. The central axis of the water tub 2 coincides with the central axis of the washing and dehydrating tub 100.
The washing and dehydrating tub 100 includes a cylindrical body 101 made of metal (e.g., stainless steel) and a bottom 102 made of synthetic resin and disposed on a lower end side of the cylindrical body 101.
Further, a ring-shaped balancer 40 is attached to an edge of an upper opening of the washing and dehydrating tub 100. The ring-shaped balancer 40 is operated to suppress vibration when the washing/dehydrating tub 100 is rotated at a high speed for dehydrating the laundry. Further, a stirring blade 20 (pulsator) made of synthetic resin is rotatably disposed on the bottom surface in the washing and dehydrating tub 100.
A clutch/brake mechanism 50 and a driving motor (not shown) constituting a driving unit for driving the washing and dehydrating tub 100 and the agitating blade 20 are provided under the water tub 2. The central portion of the stirring blade 20 is attached to the tip of the rotating shaft 51 of the clutch/brake mechanism 50, and the bottom of the water tank 2 is attached to the lower portion of the rotating shaft 51 near the tip.
The vertical washing machine is provided with a water supply unit 10 for supplying water into the washing and dehydrating tub 100.
Fig. 4 is an enlarged longitudinal sectional view of a main part of the washing and dehydrating tub 100. In fig. 4, the same components as those in fig. 3 are denoted by the same reference numerals.
As shown in fig. 4, the cylindrical body 101 of the washing and dehydrating tub 100 is formed of a peripheral wall having a drain hole 101d (shown in fig. 9) above the water level during washing and having a diameter that increases toward the upper side (see fig. 6). The bottom portion 102 has a cup shape with a recess for accommodating the stirring blade 20.
A plurality of drainage grooves (not shown) extending in the vertical direction are provided on the inner circumferential surface of the cylindrical body section 101. When the washing and dehydrating tub 100 rotates at a high speed during the dehydrating operation, the water in the washing and dehydrating tub 100 rises along the inner circumferential surface of the washing and dehydrating tub 100 by centrifugal force. At this time, the water rising along the inner peripheral surface of the washing and dehydrating cylinder 100 is guided by the drainage groove to a gap (not shown) provided at an upper portion, and flows between the water cylinder 2 and the washing and dehydrating cylinder 100 from the gap and the dehydrating drainage hole 101 d.
The peripheral wall of the cylindrical body 101 is a tapered hole-free wall inclined with respect to the central axis of the washing and dehydrating tub 100.
Fig. 5 is a rear view of the washing and dehydrating tub 100. In fig. 5, the same components as those in fig. 3 and 4 are denoted by the same reference numerals.
FIG. 6 is a longitudinal sectional view taken along line VI-VI in FIG. 5. A region a (a portion of a circle dotted) shown in fig. 6 indicates a portion where the annular pad pressing member 103 (shown in fig. 7 and 8) is fixed to the bottom portion 102 by a screw, and a region B (a portion of a circle dotted) shown in fig. 6 indicates a portion where the cylindrical body portion 101 is fixed to the bottom portion 102 by a screw via the annular pad pressing member 103.
Fig. 7 is an enlarged cross-sectional view of the annular spacer 104 attached to the region a of fig. 6. In the annular pad pressing member 103 of fig. 7, 103a is an outer peripheral wall portion, 103b is an upper end portion, 103c is an annular bottom portion, and 103d is an inner peripheral wall portion.
As shown in fig. 7, a first brush portion 102a is provided over the entire circumference of the outer circumferential surface of the upper end portion of the bottom portion 102. Further, a second brush portion 102b is provided below the first brush portion 102a on the outer peripheral surface of the bottom portion 102 over the entire circumferential direction with a predetermined interval. Further, a third brush portion 102c is provided below the first brush portion 102a on the outer peripheral surface of the bottom portion 102 over the entire circumferential direction at a predetermined interval. Further, an annular rib 102d (see fig. 10) is erected, and the rib 102d extends downward from the root side of the third brush portion 102c of the bottom portion 102.
In addition, a positioning portion 110 is provided in the lower end portion of the cylindrical body section 101 over the entire circumferential direction, and the positioning portion 110 protrudes upward from the first brush section 102a of the bottom section 102 and inward in the radial direction from the outer peripheral edge of the first brush section 102 a. The cross section of the positioning portion 110 is substantially V-shaped.
The bottom part 102 is inserted from below to the lower end opening of the cylindrical body part 101, and the upper part of the first brush part 102a of the bottom part 102 abuts against the positioning part 110 and is positioned at the bottom part 102 with respect to the cylindrical body part 101. At this time, an annular pad holding portion H is formed between the lower side of the positioning portion 110 of the cylindrical body section 101 and the outer peripheral surface of the annular rib 102d of the bottom portion 102 and below the third brush portion 102 c. The annular packing 104 is held by the annular packing holding portion H. The annular packing 104 has a circular cross section (in a state where no pressure is applied from the periphery). The cross-sectional shape of the annular packing 104 is not limited to a circular shape, and may be appropriately set according to the structure of the cylindrical body portion or the bottom portion.
Then, the annular pad pressing member 103 is inserted from below between the inner peripheral surface of the cylindrical body portion 101 and the outer peripheral surface of the annular rib 102d of the bottom portion 102, and the annular pad pressing member 103 is attached to the bottom portion 102 by the screw 121. At this time, the screw 121 is fastened to the screw hole of the bottom portion 102 from below, whereby the annular gasket 104 is pressed by the upper end portion 103b of the annular gasket pressing member 103. Thereby, the annular packing 104 is elastically deformed, and the annular packing 104 is biased radially outward with respect to the inner peripheral surface of the cylindrical body section 101. The upper end portion 103b of the annular pad pressing member 103 has a substantially flat shape and is chamfered over the entire circumferential directions of the inner circumferential side and the outer circumferential side.
A plurality of positions fastened by the screws 121 are provided at equal intervals in the circumferential direction of the annular pad pressing member 103, and the annular pad 104 is pressed uniformly by the upper end of the annular pressing member 103.
At this time, the annular packing 104 is also pressed by the lower surface of the third brush portion 102c of the bottom portion 102. Therefore, the space between the cylindrical body section 101 and the bottom section 102 can be reliably sealed.
As described above, the screw 121 that attaches the annular gasket pressing member 103 to the bottom portion 102 is tightened, and the annular gasket 104 is pressed by the upper end of the annular gasket pressing member 103, so that the annular gasket 104 is elastically deformed, and the annular gasket 104 is biased radially outward with respect to the inner peripheral surface of the cylindrical body portion 101, thereby improving the assembling property.
On the other hand, fig. 8 is an enlarged cross-sectional view showing a state in which the annular packing 104 is attached to the region B of fig. 6. In fig. 8, the same components as those in fig. 7 are denoted by the same reference numerals.
As shown in fig. 8, the bottom portion 102 is attached to the lower end side of the cylindrical body portion 101 via an annular pad pressing member 103 by a screw 123. At this time, by fastening screws to the screw holes 124 of the bottom portion 102 from the outer peripheral surface side of the cylindrical body section 101, the fixing portion of the bottom portion 102 can be provided near the annular packing 104 on the lower end side of the cylindrical body section 101, and the annular packing pressing member 103 can be used also for fixing between the cylindrical body section 101 and the bottom portion 102. Further, a plurality of positions to be fastened by the screws 123 are provided at equal intervals in the circumferential direction on the lower end side of the cylindrical body section 101.
In the washing and dehydrating tub 100, among the plurality of brush portions 102a, 102b, 102c provided at intervals in the vertical direction over the entire outer peripheral surface of the bottom portion 102, the upper brush portion 102a is used for positioning with respect to the positioning portion 110 of the cylindrical body portion 101. Among the plurality of brush portions 102a, 102b, and 102c, the lower brush portion 102c is used for positioning the annular spacer 104. Further, the middle brush portion 102b serves to reinforce the strength of the bottom portion 102.
Further, the plurality of brush portions 102a, 102b, and 102c are provided on the outer peripheral surface of the bottom portion 102 at intervals in the vertical direction, and the brush portion 102c for positioning the annular gasket 104 is disposed downward, whereby the position of the annular gasket 104 can be lowered. This can shorten the vertical dimension of the annular gasket pressing member 103, facilitate the insertion of the annular gasket pressing member 103, reinforce and uniformly press the annular gasket 104, and improve the sealing property.
Fig. 9 is an exploded perspective view showing the washing and dehydrating tub 100. As shown in fig. 9, in the washing and dehydrating tub 100, a bottom portion 102 is attached to the lower inner periphery of a cylindrical body portion 101. Next, after inserting the annular packing 104 into the packing holding portion H (shown in fig. 7 and 8) between the inner peripheral surface of the cylindrical body portion 101 and the outer peripheral surface of the bottom portion 102, the annular packing pressing member 103 is inserted from below between the inner peripheral surface of the cylindrical body portion 101 and the outer peripheral surface of the bottom portion 102.
Next, the annular pad pressing member 103 is attached to the bottom portion 102 by fastening the screw 121 from below (as shown in fig. 7), and then the cylindrical body portion 101 and the bottom portion 102 are fixed to each other via the annular pad pressing member 103 by fastening the screw 123 from the radially outer side (as shown in fig. 8).
Fig. 10 is a perspective view of the bottom 102 of the washing and dehydrating tub as viewed obliquely from below. In fig. 10, the same components as those in fig. 7 and 8 are denoted by the same reference numerals.
As shown in fig. 10, a first brush portion 102a, a second brush portion 102b, and a third brush portion 102c are provided at intervals in the vertical direction over the entire circumferential direction of the outer peripheral surface of the upper end portion of the bottom portion 102. Further, an annular rib 102d extending downward from the root side of the third brush portion 102c of the bottom portion 102 is erected.
Fig. 11 is a side view of a joint portion of the cylindrical body 101 of the washing and dehydrating tub 100. Further, fig. 12A shows a sectional view viewed from a line XIIA-XIIA of fig. 11, fig. 12B shows a sectional view viewed from a line XIIB-XIIB of fig. 11, and fig. 12C shows a sectional view viewed from a line XIIC-XIIC of fig. 11.
First, a thin plate (having a plate thickness of 0.5 to 0.6mm) made of, for example, a stainless steel plate is cut into a fan shape, and then the plate is formed into a tapered body plate member 101a having an upward diameter by a roll, and a joint portion after the roll forming is joined by folding and caulking, thereby forming a cylindrical body portion 101 in a cylindrical shape.
In the upper end portion of the folded portion S (see fig. 12C) in the longitudinal direction of the cylindrical body portion 101 shown in fig. 11, an extension piece 101b extending in the circumferential direction is formed at one joined end portion of the joint portion of the cylindrical body portion 101, and the extension piece 101b is overlapped with the other joined end portion to form two overlapped portions as shown in fig. 12A, through holes 151 and 152 are formed at both joined end portions of the two overlapped portions, and the balancer 40 (as shown in fig. 3) is fixed by screws through the through holes 151 and 152, thereby preventing the folded portion S from being detached by a centrifugal force at the time of dehydration. The folded part S of the cylindrical body section 101 is an example of a joint of the cylindrical body section 101.
On the other hand, at the lower end portion of the folded portion S of the cylindrical body portion 101, an extension piece 101c extending in the circumferential direction is formed at one joining end portion of the joint portion of the cylindrical body portion 101, two overlapped portions are formed by overlapping the extension piece 101c with the other joining end portion as shown in fig. 12B, through holes 153 and 154 are formed at both joining end portions of the two overlapped portions, and the bottom portion 102 (shown in fig. 3) is fixed by screws through the through holes 153 and 154, whereby the strength of the lower end side of the joint portion of the cylindrical body portion 101 is improved, and the folded portion S is prevented from being detached by a centrifugal force at the time of dehydration.
Fig. 13A and 13B are perspective views of the essential part of the washing and dehydrating tub 100 as viewed obliquely from below. Fig. 13A shows a state in which the seal member 111 (shown in fig. 13B) is not fitted into the recess 105 of the annular packing pressing member 103, and fig. 13B shows a state in which the seal member 111 is fitted into the recess 105. An adhesive material having water-tightness is used for the sealing member 111.
In fig. 13A and 13B, reference numeral 101e denotes a brush portion formed by bending the lower end of the cylindrical body portion 101 inward. The brush portion 101e covers a portion of the lower side of the pad pressing member 103 and a portion of the screw top of the screw 121, and regulates downward movement of the annular pad pressing member 103 and loosening and dropping of the screw.
As shown in fig. 13A and 13B, a recess 105 is provided in a region on the outer peripheral side of the annular pad pressing member 103 and facing the lower end of the folded portion S (seam) of the cylindrical body portion 101. Further, a notch 101f is provided in a portion of the brush portion 101e of the pad pressing member 103, which is opposite to the recess 105.
A seal member 111 is fitted into the concave portion 105 to cover the lower end of the folded portion S of the cylindrical body section 101. The seal member 111 fitted into the concave portion 105 is exposed below the annular pad pressing member 103.
Fig. 14 is a cross-sectional view taken along line XIV-XIV of fig. 13B. In fig. 14, the same components as those in fig. 8 are described with the same reference numerals. Further, 60 denotes a lint trap.
As shown in fig. 14, a recess 105 is provided in a region on the outer peripheral side of the annular pad pressing member 103 and facing the lower end of the folded portion S (joint) of the cylindrical body portion 101. The seal member 111 fitted into the recess 105 is exposed below the annular pad pressing member 103.
According to the washing and dehydrating tub 100 having the above-described configuration, the recessed portion 105 is provided in the region on the outer peripheral side of the annular packing pressing member 103 and facing the lower end of the folded portion S (joint) of the cylindrical body portion 101, the sealing member 111 is fitted into the recessed portion 105 to cover the lower end of the folded portion S of the cylindrical body portion 101, and the sealing member 111 is reliably held in the recessed portion 105 without falling off, so that it is possible to prevent water entering from the portion with weak water-tightness of the folded portion S portion by the sealing member 111 from being transferred to the inside of the folded portion S portion and flowing out from the lower end due to capillary phenomenon, and therefore it is possible to prevent the water-tightness from being lowered by the folded portion S of the cylindrical body portion 101 and maintain high water-tightness.
Further, since the seal member 111 enters the recess 105, the seal member 111 is erroneously brought into contact in a subsequent assembly process of the washing machine, and the seal member 111 cannot be taken out. Further, the seal member 111 of the recess 105 is easily visible from the outside, and forgetting the operation can be prevented. This prevents the problem of deterioration in quality due to deterioration in water-tightness.
Further, since the sealing member 111 fitted into the concave portion 105 is exposed below the annular gasket pressing member 103, the sealing member 111 can be easily filled into the concave portion 105 from below toward the lower end of the folded portion S (joint) of the cylindrical body portion 101, and water leakage from the lower end of the folded portion S of the cylindrical portion 101 can be reliably prevented.
In addition, in the first embodiment, it is possible to realize a vertical washing machine including the washing and dehydrating tub 100 capable of preventing a decrease in water tightness due to a folded portion S (seam) of the cylindrical body portion and maintaining high water tightness, and to prevent a decrease in water saving performance.
In the first embodiment, the recessed portion 105 is provided on the outer peripheral side of the annular gasket pressing member 103 and in the region facing the lower end of the folded portion S (seam) of the cylindrical body portion 101, but the recessed portion for holding the sealing member may be a recessed portion surrounded in a convex shape such as a rib formed in the annular gasket pressing member.
(second embodiment)
Fig. 15 is a sectional view showing a main part of a washing and dehydrating tub of a vertical washing machine as an example of a washing machine according to a second embodiment of the present invention, and fig. 15 is the same section as fig. 14 of the first embodiment. The washing and dehydrating tub 100 according to the second embodiment has the same configuration as the washing machine and dehydrating tub 100 according to the first embodiment except for the recess 106 of the annular packing pressing member 103 and the sealing member 112, and fig. 1 to 10 are referred to.
As shown in fig. 15, a recess 106 that opens radially outward is provided on the outer peripheral side of the annular pad pressing member 103 in a region facing the lower end of the folded portion S (joint) of the cylindrical body portion 101. The seal member 112 fitted into the recess 106 is exposed to the side of the annular pad pressing member 103.
According to the washing machine/dehydration cylinder 100 configured as described above, the sealing member 112 fitted into the concave portion 106 is exposed to the side of the annular gasket pressing member 103, and therefore the sealing member 112 can be easily filled into the concave portion 106 from the side.
The washing and dehydrating tub 100 of the second embodiment has the same effects as the washing and dehydrating tub 100 of the first embodiment.
(third embodiment)
Fig. 16 is a sectional view showing a main part of a washing and dehydrating tub 100 of a vertical washing machine as an example of a washing machine according to a third embodiment of the present invention, and fig. 16 is the same section as fig. 14 of the first embodiment. The washing and dehydrating tub 100 of the third embodiment has the same configuration as the washing machine and dehydrating tub 100 of the first embodiment except for the recess 107 of the annular packing pressing member 103 and the sealing member 113, and fig. 1 to 10 are referred to.
As shown in fig. 16, a recess 107 that opens downward and radially outward is provided on the outer peripheral side of the annular pad pressing member 103 in a region facing the lower end of the folded portion S (joint) of the cylindrical body portion 101. The seal member 113 fitted into the recess 107 is exposed below and on the side of the annular pad pressing member 103.
The washing and dehydrating tub 100 according to the third embodiment has the same effects as the washing and dehydrating tub 100 according to the first and second embodiments.
In the first to third embodiments, the vertical washing machine having the washing and dehydrating tub has been described, but the present invention is not limited thereto, and may be applied to a washing and drying machine having a drying function.
Although the embodiments of the present invention have been described above, the scope of the present invention is not limited to the first to third embodiments, and various modifications can be made without departing from the spirit of the present invention.
The present invention and embodiments will be summarized as follows.
The washing and dehydrating tub 100 according to an embodiment of the present invention includes:
a metal cylindrical body part 101;
a bottom part 102 which is arranged on the lower end side of the cylindrical body part 101 and is made of synthetic resin;
an annular packing 104 held between an inner peripheral surface of the cylindrical body portion 101 and an outer peripheral surface of the bottom portion 102;
an annular pad pressing member 103 attached to the bottom portion 102 so as to press the annular pad 104 held between the inner peripheral surface of the cylindrical body portion 101 and the outer peripheral surface of the bottom portion 102 from below by an upper end of the annular pad pressing member,
the seal members 111, 112, 113 are fitted into the recesses 105, 106, 107 so as to cover the lower end of the joint S of the cylindrical body section 101.
According to the above configuration, the recessed portions 105, 106, 107 are provided in the region on the outer peripheral side of the annular packing holding member 103 and facing the lower end of the joint S of the cylindrical body portion 101, and the sealing members 111, 112, 113 are fitted into the recessed portions 105, 106, 107 to cover the lower end of the joint S of the cylindrical body portion 101, and are reliably held by the recessed portions 105, 106, 107 so that the sealing members 111, 112, 113 do not come off, and therefore, it is possible to prevent the sealing performance from being lowered at the joint S portion of the cylindrical body portion 101 by the sealing members 111, 112, 113, and maintain high sealing performance.
In the washing and dehydrating tub 100 according to the embodiment, the sealing members 111 and 113 of the fitting recesses 105 and 107 are exposed below the annular packing pressing member 103.
Further, according to the above embodiment, since the seal members 111 and 113 fitted into the concave portions 105 and 107 are exposed below the annular packing holding member 103, water leaks from the lower end of the joint S of the cylindrical body 101 toward the joint of the cylindrical body 101.
In the washing and dehydrating tub 100 according to the embodiment, the seal members 112 and 113 fitted into the concave portions 106 and 107 are exposed to the side of the annular packing pressing member 103.
According to the above embodiment, since the seal members 112 and 113 fitted into the concave portions 106 and 107 are exposed to the side of the annular packing pressing member 103, the seal members 112 and 113 can be easily filled into the concave portions 106 and 107 from the side.
Further, the washing and dehydrating tub according to an embodiment of the present invention includes any one of the above-described washing and dehydrating tub 100.
According to the above configuration, it is possible to realize a washing machine including the washing and dehydrating tub 100 capable of preventing a decrease in water tightness due to the seam S portion of the cylindrical body part and maintaining high water tightness, and to prevent a decrease in water saving performance.
Description of the reference numerals
1 main body case
2 Water tank
4 cover
5 operation display part
11 upper panel
12 base
20 stirring wing
40 ring-shaped gasket
50 clutch and brake mechanism
60 lint catching device
100 washing and dewatering cylinder
101 cylindrical body part
101a fuselage sheet
101b extension piece
101c extension piece
101d dewatering drain hole
101e brush part
101f notch part
102 bottom part
102a first brush part
102b second brush part
102c second brush part
102d annular Ribs
103 ring-shaped pad pressing member
103a outer peripheral wall portion
103b upper end portion
103c ring bottom
103d inner peripheral wall portion
104 ring-shaped liner
105. 106, 107 of recess
110 positioning part
111. 112, 113 sealing member
121. 123 screw
122. 124 screw hole
H-ring shaped pad holding part
S folding part
Claims (4)
1. A washing and dehydrating cylinder, which is characterized in that,
the disclosed device is provided with:
a metal cylindrical body section;
a bottom portion which is arranged on a lower end side of the cylindrical body portion and is made of synthetic resin;
an annular packing held between an inner peripheral surface of the cylindrical body section and an outer peripheral surface of the bottom section;
an annular pad pressing member attached to the bottom portion so as to press the annular pad held between the inner peripheral surface of the cylindrical body portion and the outer peripheral surface of the bottom portion from below by an upper end of the annular pad pressing member,
a recessed portion is provided in a region along the longitudinal direction of the cylindrical body section on the outer peripheral side of the annular pad pressing member and opposed to the lower end of the joint,
the seal member is fitted into the recess portion to cover a lower end of the joint of the cylindrical body section.
2. The washing and dehydrating tub as set forth in claim 1, wherein the sealing member fitted into the recess is exposed below the annular packing pressing member.
3. The washing and dehydrating tub as set forth in claim 1 or 2, wherein the sealing member fitted into the recess is exposed at a side of the annular packing pressing member.
4. A washing machine comprising the washing and dehydrating tub according to any one of claims 1 to 3.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017162754 | 2017-08-25 | ||
| JP2017-162754 | 2017-08-25 | ||
| PCT/JP2017/046619 WO2019038944A1 (en) | 2017-08-25 | 2017-12-26 | Washing-cum-spinning tub and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111032944A CN111032944A (en) | 2020-04-17 |
| CN111032944B true CN111032944B (en) | 2022-06-14 |
Family
ID=65438612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780094135.0A Active CN111032944B (en) | 2017-08-25 | 2017-12-26 | Washing and dewatering cylinder and washing machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7003140B2 (en) |
| CN (1) | CN111032944B (en) |
| WO (1) | WO2019038944A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219621A (en) * | 1997-12-11 | 1999-06-16 | Lg电子株式会社 | Alien substance inflow preventing structure for drum tape washing machine |
| EP2589697A1 (en) * | 2011-02-23 | 2013-05-08 | Panasonic Corporation | Drum-type washing machine |
| CN204298639U (en) * | 2014-10-31 | 2015-04-29 | 青岛海尔洗衣机有限公司 | A kind of washing machine inner tub |
| CN105624976A (en) * | 2014-10-31 | 2016-06-01 | 青岛海尔洗衣机有限公司 | Washing machine inner barrel |
| WO2016189910A1 (en) * | 2015-05-27 | 2016-12-01 | シャープ株式会社 | Washing-cum-dewatering tub and washing machine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3544776B2 (en) * | 1996-02-19 | 2004-07-21 | 株式会社東芝 | Rotating tub of washing machine for both dehydration |
| JP2007130359A (en) * | 2005-11-14 | 2007-05-31 | Sanyo Electric Co Ltd | Drum type washing machine |
| JP2016054833A (en) * | 2014-09-08 | 2016-04-21 | 株式会社東芝 | Washing machine and manufacturing method of washing machine |
| CN106995998A (en) * | 2017-04-24 | 2017-08-01 | 海信（山东）冰箱有限公司 | A kind of rotary drum washing machine with door sealing structure |
-
2017
- 2017-12-26 JP JP2019537552A patent/JP7003140B2/en active Active
- 2017-12-26 CN CN201780094135.0A patent/CN111032944B/en active Active
- 2017-12-26 WO PCT/JP2017/046619 patent/WO2019038944A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1219621A (en) * | 1997-12-11 | 1999-06-16 | Lg电子株式会社 | Alien substance inflow preventing structure for drum tape washing machine |
| EP2589697A1 (en) * | 2011-02-23 | 2013-05-08 | Panasonic Corporation | Drum-type washing machine |
| CN204298639U (en) * | 2014-10-31 | 2015-04-29 | 青岛海尔洗衣机有限公司 | A kind of washing machine inner tub |
| CN105624976A (en) * | 2014-10-31 | 2016-06-01 | 青岛海尔洗衣机有限公司 | Washing machine inner barrel |
| WO2016189910A1 (en) * | 2015-05-27 | 2016-12-01 | シャープ株式会社 | Washing-cum-dewatering tub and washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2019038944A1 (en) | 2020-09-17 |
| WO2019038944A1 (en) | 2019-02-28 |
| CN111032944A (en) | 2020-04-17 |
| JP7003140B2 (en) | 2022-01-20 |
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