WO2016189910A1 - Tube de lavage et de dessèchement et machine à laver - Google Patents

Tube de lavage et de dessèchement et machine à laver Download PDF

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Publication number
WO2016189910A1
WO2016189910A1 PCT/JP2016/055564 JP2016055564W WO2016189910A1 WO 2016189910 A1 WO2016189910 A1 WO 2016189910A1 JP 2016055564 W JP2016055564 W JP 2016055564W WO 2016189910 A1 WO2016189910 A1 WO 2016189910A1
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WO
WIPO (PCT)
Prior art keywords
washing
cylindrical body
annular packing
annular
peripheral surface
Prior art date
Application number
PCT/JP2016/055564
Other languages
English (en)
Japanese (ja)
Inventor
義治 赤阪
充洋 松本
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015107747A external-priority patent/JP6461711B2/ja
Priority claimed from JP2015165661A external-priority patent/JP6470145B2/ja
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to CN201680004699.6A priority Critical patent/CN107109753B/zh
Publication of WO2016189910A1 publication Critical patent/WO2016189910A1/fr

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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

Definitions

  • the present invention relates to a washing / dehydrating tub and a washing machine equipped with the washing / dehydrating tub.
  • Patent Document 1 As a washing and dewatering tub, as disclosed in Japanese Patent No. 3078684 (Patent Document 1), a bottom portion made of stainless steel plate and a lower end opening peripheral portion are attached to the upper end opening peripheral portion of the bottom portion. Some have a cylindrical body made of stainless steel plate and are placed in a water tank of a washing machine.
  • the peripheral edge of the top opening at the bottom is folded inward in an inverted U shape to form a goby fold.
  • the peripheral edge of the lower end opening of the body portion is bent outwardly into a U shape to form a goby fold.
  • the washing and dewatering tank can improve water saving performance.
  • the conventional washing and dewatering tub is formed of a stainless steel plate in both the bottom and the cylindrical body, if a synthetic resin bottom is used instead of the stainless steel bottom, the manufacturing cost is reduced. Can be lowered. That is, the conventional washing and dewatering tub has a problem that the cost has not been sufficiently reduced.
  • annular packing is provided over the entire circumference between them. Must be placed.
  • an object of the present invention is to provide a washing / dehydrating tub and a washing machine that can prevent a reduction in water-saving performance and are low in production cost.
  • Another object of the present invention is to provide a washing / dehydrating tub and a washing machine equipped with the washing / dehydrating tub capable of improving the water-tightness between the metal cylindrical barrel and the synthetic resin bottom with a simple configuration. It is to provide.
  • the washing and dewatering tub of this invention is A metal cylindrical body, A synthetic resin bottom disposed on the lower end side of the cylindrical body, An annular packing holding part formed between the bottom part and the inner peripheral surface of the cylindrical body part; An annular packing held by the annular packing holding portion between the inner peripheral surface of the cylindrical body and the outer peripheral surface of the bottom; and An adhesion forming portion for bringing the annular packing into close contact with the inner peripheral surface of the cylindrical body portion is provided.
  • the bottom has an outer peripheral surface
  • the cylindrical body is composed of a non-peripheral peripheral wall whose lower end is attached to the outer peripheral surface of the bottom, and whose diameter increases as it approaches the upper side
  • the annular packing holding portion is an annular groove provided over the entire circumference of the outer peripheral surface of the bottom portion and extending along the circumferential direction of the outer peripheral surface of the bottom portion
  • the annular packing is at least partially accommodated in the annular groove over the entire circumference of the annular groove, and extends along the circumferential direction of the outer peripheral surface of the bottom portion
  • the adhesion forming portion is provided over the entire circumference of the lower end portion of the cylindrical body portion, extends along the circumferential direction of the lower end portion of the cylindrical body portion, and protrudes radially inward.
  • An annular protrusion, The annular protrusion or a portion adjacent to the annular protrusion in the vertical direction is in close contact with the annular packing.
  • a positioning portion that protrudes radially inward above the annular protrusion is provided at the lower end of the cylindrical body.
  • a plurality of the positioning portions are provided at predetermined intervals in the circumferential direction.
  • the radial height of the positioning portion is lower than the radial height of the annular protrusion.
  • the tip angle on the radially inner side of the annular protrusion is larger than the tip angle on the radially inner side of the positioning portion.
  • the annular projecting portion also serves as a positioning portion for determining the position of the bottom portion with respect to the lower end portion of the cylindrical body portion.
  • a screw for fixing the lower end portion of the cylindrical body portion to the bottom portion is positioned below the annular packing.
  • the washing machine of this invention An outer box, A water tank disposed in the outer box;
  • the washing and dewatering tank of one embodiment is
  • the close-contact formation part is an annular packing press attached to the bottom so as to press the annular packing held by the annular packing holding part from above with an upper end.
  • the annular packing is pressed so that the annular packing presses the annular packing so that the annular packing is urged radially outward against the inner peripheral surface of the cylindrical body. Is elastically deformed.
  • the bottom portion has a flange portion provided over the entire circumference of the outer peripheral surface, The annular packing is in contact with the lower surface of the flange portion.
  • the bottom surface of the flange portion of the bottom portion is inclined or curved so as to gradually become lower from the outer peripheral side toward the inner peripheral side.
  • a positioning portion is provided at the lower end portion of the cylindrical body portion so as to protrude above the flange portion of the bottom portion and radially inward from the outer peripheral edge of the flange portion.
  • the upper end portion of the annular packing retainer is inclined or curved so as to gradually decrease from the inner peripheral side toward the outer peripheral side.
  • the annular packing retainer is attached to the bottom with a screw, By tightening the screw, the annular packing is pressed against the inner peripheral surface of the cylindrical body by pressing the annular packing at the upper end of the annular packing retainer. As described above, the annular packing is elastically deformed.
  • the bottom part is attached to the lower end side of the cylindrical body part with a screw via the annular packing presser.
  • the material of the annular packing retainer has higher rigidity than the material of the bottom portion.
  • the cylindrical body has a body material rolled up into a cylindrical shape, and the seam portion of the body material is joined by gouge folding except for the upper and lower ends, The upper and lower ends of the seam portion of the cylindrical body portion are fastened together with screws by overlapping and overlapping the body plate material.
  • the washing machine of the present invention Any one of the above washing and dewatering tanks is provided.
  • the washing and dewatering tank of this invention is A synthetic resin bottom having an outer peripheral surface; A cylindrical tubular body made of a non-peripheral peripheral wall having a lower end attached to the outer peripheral surface of the bottom and increasing in diameter as it approaches the upper side; An annular groove provided on the outer peripheral surface of the bottom and extending over the entire circumference along the circumferential direction; An annular packing which is at least partially accommodated in the annular groove and extends over the entire circumference in the circumferential direction; An annular projecting portion provided at the lower end portion of the cylindrical body portion, extending over the entire circumference along the circumferential direction, and projecting radially inward, The annular protrusion or a portion adjacent to the annular protrusion in the vertical direction is in close contact with the annular packing.
  • a positioning portion that protrudes radially inward above the annular protrusion is provided at the lower end of the cylindrical body.
  • a plurality of the positioning portions are provided at predetermined intervals in the circumferential direction.
  • the radial height of the positioning portion is lower than the radial height of the annular protrusion.
  • the tip angle on the radially inner side of the annular protrusion is larger than the tip angle on the radially inner side of the positioning portion.
  • the annular projecting portion also serves as a positioning portion for determining the position of the bottom portion with respect to the lower end portion of the cylindrical body portion.
  • the screw for fixing the lower end part of the cylindrical body part to the bottom part is located below the annular packing.
  • the washing machine of this invention An outer box, A water tank disposed in the outer box;
  • the washing and dewatering tank of this invention is A metal cylindrical body, A bottom portion made of a synthetic resin, which is disposed on the lower end side of the cylindrical body portion and forms an annular packing holding portion between the inner peripheral surface of the cylindrical body portion; An annular packing held by the annular packing holding portion between the inner peripheral surface of the cylindrical body and the outer peripheral surface of the bottom; and An annular packing presser attached to the bottom so as to press the annular packing held by the annular packing holding part from below with an upper end; The annular packing is pressed so that the annular packing presses the annular packing so that the annular packing is urged radially outward against the inner peripheral surface of the cylindrical body. Is elastically deformed.
  • the bottom portion has a flange portion provided over the entire circumference of the outer peripheral surface, The annular packing is in contact with the lower surface of the flange portion.
  • the bottom surface of the flange portion of the bottom portion is inclined or curved so as to gradually become lower from the outer peripheral side toward the inner peripheral side.
  • a positioning portion is provided at the lower end portion of the cylindrical body portion so as to protrude above the flange portion of the bottom portion and radially inward from the outer peripheral edge of the flange portion.
  • the upper end portion of the annular packing retainer is inclined or curved so as to gradually decrease from the inner peripheral side toward the outer peripheral side.
  • the annular packing retainer is attached to the bottom with a screw, By tightening the screw, the annular packing is pressed against the inner peripheral surface of the cylindrical body by pressing the annular packing at the upper end of the annular packing retainer. As described above, the annular packing is elastically deformed.
  • the bottom part is attached to the lower end side of the cylindrical body part with a screw via the annular packing presser.
  • the material of the annular packing retainer has higher rigidity than the material of the bottom portion.
  • the cylindrical body has a body material rolled up into a cylindrical shape, and the seam portion of the body material is joined by gouge folding except for the upper and lower ends, The upper and lower ends of the seam portion of the cylindrical body portion are fastened together with screws by overlapping and overlapping the body plate material.
  • the washing machine of the present invention Any one of the above washing and dewatering tanks is provided.
  • the annular projecting portion or the portion adjacent to the annular projecting portion in the vertical direction is in close contact with the annular packing. Can be reduced.
  • the washing machine of the present invention is provided with the washing and dewatering tub, so that the water saving performance can be prevented from being lowered and the manufacturing cost can be reduced.
  • the annular packing held by the packing holding portion between the inner peripheral surface of the metal cylindrical barrel and the outer peripheral surface of the synthetic resin bottom is formed at the upper end of the annular packing retainer.
  • the metal cylindrical barrel and the synthetic resin can be formed with a simple structure by pressing upward and elastically deforming and urging the annular packing radially outward against the inner peripheral surface of the cylindrical barrel. It is possible to realize a washing / dehydrating tub capable of improving watertightness with the bottom of the product and a washing machine equipped with the washing / dehydrating tub.
  • FIG. 7 is an external perspective view of a vertical washer / dryer as an example of the washing machine according to the fourth embodiment of the present invention.
  • FIG. 8 is a top view of the vertical laundry dryer.
  • FIG. 9 is a longitudinal sectional view taken along line III-III in FIG.
  • FIG. 10 is an enlarged longitudinal sectional view of the main part of FIG.
  • FIG. 11 is a back view of the washing and dewatering tank.
  • 12 is a longitudinal sectional view taken along line VI-VI in FIG. 13A is an enlarged cross-sectional view showing a state where the annular packing in the region A in FIG. 12 is not attached.
  • FIG. 13B is an enlarged cross-sectional view of a state where the annular packing in the region A of FIG. 12 is mounted.
  • 14A is an enlarged cross-sectional view of a state where the annular packing in the region B of FIG. 12 is not attached.
  • FIG. 14B is an enlarged cross-sectional view of a state where the annular packing in the region B of FIG. 12 is mounted.
  • FIG. 15 is an exploded perspective view of the washing and dewatering tank.
  • FIG. 16 is a perspective view of the annular packing presser of the washing and dewatering tub.
  • FIG. 17 is a top view of the annular packing retainer.
  • FIG. 18 is a side view of the annular packing presser.
  • FIG. 19 is a longitudinal sectional view taken along line XIII-XIII in FIG.
  • FIG. 20 is a side view of the joint portion of the cylindrical body of the washing and dewatering tub.
  • 21A is a sectional view taken along line XVA-XVA in FIG.
  • FIG. 21B is a cross-sectional view taken along line XVB-XVB in FIG.
  • FIG. 21C is a sectional view taken along line XVC-XVC in FIG.
  • FIG. 22A is an enlarged cross-sectional view of a main part corresponding to region B of FIG. 12 of a vertical washer / dryer as an example of the washing machine of the fifth embodiment of the present invention.
  • FIG. 22B is an enlarged cross-sectional view of a state in which the annular packing of the vertical washing dryer is mounted.
  • FIG. 1 is a diagram schematically showing an external appearance of a vertical washer / dryer according to a first embodiment of the present invention as viewed obliquely from the front side.
  • the vertical washer / dryer according to the first embodiment includes a body casing 1 made of metal or synthetic resin, and an upper lid that opens and closes an opening of a water tub 2 (shown in FIG. 2) and a washing and dewatering tub 100 (shown in FIG. 2). 4 and an operation display unit 5 provided on the upper surface of the main casing 1.
  • the user operates the operation display unit 5 to select a driving action.
  • the operation display unit 5 displays the driving state with characters and numbers.
  • the main body casing 1 is an example of an outer box.
  • FIG. 2 is a diagram schematically showing a longitudinal section of the above-described vertical washing dryer as viewed from the side.
  • This vertical washer / dryer includes a main casing 1 made of metal or synthetic resin.
  • the main casing 1 is formed in a rectangular tube shape, and has an upper surface opening on the upper surface and a lower surface opening on the lower surface.
  • a synthetic resin upper surface plate 11 provided with an operation display unit 5 and the like is fixed to the upper surface opening of the main casing 1.
  • a synthetic resin base 12 is fixed to the lower surface opening of the main casing 1.
  • a laundry loading port 1a for loading laundry into the vertical laundry dryer is provided on the top plate 11.
  • the upper lid 4 that opens and closes the laundry input port 1a is rotatably supported by the upper surface plate 11 on the heel side (rear side) of the vertical laundry dryer. By rotating the upper lid 4 up and down, the laundry input port 1a is opened and closed.
  • a water tank 2 is disposed in the main body casing 1, and a washing and dewatering tank 100 is disposed in the water tank 2. That is, the main body casing 1 accommodates a washing / dehydrating tub 100 and a water tub 2 for storing the washing / dehydrating tub 100. In the washing and dewatering tank 100, water for washing laundry or water for rinsing the laundry is collected.
  • Each of the water tub 2 and the washing / dehydrating tub 100 has a bottomed cylindrical shape whose upper side is open, and the central axis is parallel to the vertical direction. Further, the central axis of the water tank 2 coincides with the central axis of the washing and dewatering tank 100.
  • An annular balancer 40 is attached to the edge of the upper opening of the washing / dehydrating tub 100.
  • the annular balancer 40 functions to suppress vibration when the washing and dewatering tub 100 is rotated at a high speed for dehydrating the laundry.
  • a synthetic resin stirring blade 20 is rotatably disposed on the bottom surface in the washing and dewatering tub 100.
  • a drive unit 50 is installed below the water tank 2.
  • the drive unit 50 includes a clutch / brake mechanism 51 and a drive motor 52.
  • the driving force of the driving motor 52 is transmitted to the washing / dehydrating tub 100 and the stirring blade 20 via the clutch / brake mechanism 51.
  • the clutch / brake mechanism 51 is provided with a rotating shaft 53 that protrudes from the bottom of the water tank 2 into the water tank 2.
  • a central portion of the stirring blade 20 is attached to the tip of the rotating shaft 53, and a bottom portion of the water tank 2 is attached to a location below the tip of the rotating shaft 53.
  • the drive motor 52 is an example of a drive device.
  • the vertical laundry dryer is configured to wash the air blowing unit 6 disposed on the upper and rear portions of the water tub 2 and water for washing the laundry or water for rinsing the laundry.
  • a water supply unit 10 for supplying water into the cum dewatering tank 100 is provided.
  • the air blowing unit 6 includes an air blowing unit 6a that blows air toward the washing / dehydrating tub 100, and an air suction unit that is provided above the air blowing unit 6a and sucks the air in the washing / dehydrating tub 100. 6b.
  • a drying unit having a blower fan and a heater is disposed near the blower 6 in the main casing 1.
  • FIG. 3 is a diagram schematically showing a longitudinal section of the washing and dewatering tub 100 as viewed from the radial direction.
  • the washing and dewatering tub 100 is composed of a synthetic resin (for example, plastic) bottom portion 101 having an outer peripheral surface, and a non-perforated peripheral wall whose lower end portion is attached to the outer peripheral surface of the bottom portion 101 and increases in diameter toward the upper side. And a cylindrical body 102 made of metal (for example, stainless steel).
  • a synthetic resin for example, plastic
  • a non-perforated peripheral wall whose lower end portion is attached to the outer peripheral surface of the bottom portion 101 and increases in diameter toward the upper side.
  • a cylindrical body 102 made of metal (for example, stainless steel).
  • a through hole 111 is provided that penetrates the central portion in the axial direction.
  • the rotating shaft 53 of the clutch / brake mechanism 51 is fitted into the through hole 111.
  • a plurality of gaps 141 are formed between the upper end portion of the cylindrical body portion 102 and the balancer 40. More specifically, a plurality of the gaps 141 are provided at predetermined intervals in the circumferential direction. Further, first and second drainage grooves 124 and 125 extending in the vertical direction are provided on the inner peripheral surface of the cylindrical body portion 102. The first and second drain grooves 124 and 125 are alternately provided in the circumferential direction. The first drainage groove 124 is located below the gap 141. On the other hand, the second drainage groove 35 is located below the portion where the gap 141 is not generated.
  • the water in the washing / dehydrating tub 100 receives a centrifugal force and rises along the inner peripheral surface of the washing / dehydrating tub 100.
  • the water rising along the inner peripheral surface of the washing and dewatering tub 100 is guided to the gap 141 by the first and second drain grooves 124 and 125, and the water tub 2 and the washing and dehydrating tub 100 from the gap 141. It comes to come out between. That is, the structure for draining the water in the washing / dehydrating tank 100 between the water tank 2 and the washing / dehydrating tank 100 is the same as the structure of Japanese Patent No. 3078684.
  • FIG. 4 is an enlarged view of the portion in the circle of FIG.
  • the washing and dewatering tub 100 includes an annular groove 112, an annular packing 130, an annular protrusion 121, and a positioning part 122.
  • the annular groove 112 is an example of an annular packing holding portion.
  • the annular protrusion 121 is an example of a close contact forming part.
  • the annular groove 112 is provided on the outer peripheral surface of the bottom 101 and extends over the entire circumference along the circumferential direction of the outer peripheral surface.
  • the annular groove 112 can accommodate the entire annular packing 130. That is, the depth of the annular groove 112 is greater than the radial thickness of the annular packing 130 (the value obtained by subtracting the inner diameter of the annular packing 130 from the outer diameter of the annular packing 130).
  • the annular packing 130 is compressed in the radial direction by the annular projecting portion 121 and extends over the entire circumference of the annular groove 112 along the circumferential direction of the annular groove 112.
  • the annular protrusion 121 is provided at the lower end of the cylindrical body 102 and protrudes radially inward.
  • the annular projecting portion 121 extends along the circumferential direction of the lower end portion of the cylindrical body portion 102 over the entire circumference of the lower end portion of the cylindrical body portion 102 and faces the annular groove 112 in the radial direction over the entire circumference. is doing.
  • the annular protrusion 121 is in close contact with the annular packing 130.
  • the positioning part 122 is provided at the lower end part of the cylindrical body part, and projects radially inward above the annular projecting part.
  • a plurality of positioning portions 122 are provided at predetermined intervals in the circumferential direction.
  • the positioning portion 122 has a radial height H2 lower than a radial height H1 of the annular protrusion, and a radially inner tip angle ⁇ 2 is a radially inner tip angle ⁇ 1 of the annular protrusion 121. Smaller than.
  • the tip angle ⁇ 1 on the radially inner side of the annular protrusion 121 is set to be, for example, 60 ° or more and 120 ° or less.
  • the tip angle ⁇ 2 on the radially inner side of the positioning portion 122 is set to be, for example, more than 60 ° and less than 90 °.
  • all the screws 140 for fixing the lower end portion of the cylindrical body portion 102 to the bottom portion 101 are located below the annular packing 130. More specifically, a screw hole 113 is provided on the outer peripheral surface of the bottom 101 so as to be positioned below the annular groove 112. The screw 140 to be screwed into the screw hole 113 is inserted into the through hole 123 at the lower end of the cylindrical body 102 and tightened.
  • the screw holes 113 are provided at a plurality of locations on the outer peripheral surface of the bottom portion 101, and all the screw holes 113 are located below the annular groove 112.
  • the metal cylindrical trunk 102 can be formed, for example, by bending a metal plate into a conical shape.
  • an annular protrusion 121 that substantially matches the target shape can be provided at the lower end of the cylindrical body 102. Therefore, the annular protrusion 121 can be brought into close contact with the entire circumference of the annular packing 130.
  • water is prevented from leaking from between the inner peripheral surface of the lower end portion of the cylindrical body portion 102 and the outer peripheral surface of the bottom portion 101. It can be prevented from falling.
  • the washing and dewatering tank 100 can reduce the manufacturing cost.
  • the position of the bottom portion 101 with respect to the lower end portion of the cylindrical body portion 102 can be easily determined by bringing the positioning portion 122 into contact with the upper end surface of the bottom portion 101.
  • the position of the bottom portion 101 with respect to the lower end portion of the cylindrical body portion 102 can be determined with certainty.
  • the positioning portion 122 can be easily formed and the deterioration of the aesthetic appearance in the cylindrical body portion 102 can be prevented. Can do.
  • the deformation amount of the annular packing 130 due to the adhesion can be increased. Therefore, it is possible to increase the area where the annular projecting portion 121 is in close contact with the annular packing 130, and to improve the water tightness between the lower end portion of the cylindrical body portion 102 and the annular packing 130.
  • washing / dehydrating tank 100 can be manufactured as follows.
  • a stainless steel plate having a thickness of 0.5 to 0.6 mm as an example of a metal plate is bent into a cylindrical shape so that the opening diameter at the lower end is smaller than the opening diameter at the upper end, and the cylindrical body is After the formation, a positioning portion 122 that protrudes radially inward over the entire circumference is formed at the lower end of the cylindrical body.
  • the bottom portion 101 in which the entire annular packing 130 is accommodated in the annular groove 112 is inserted into the lower end portion where the positioning portion 122 is formed.
  • the positioning part 122 contacts the upper end surface of the bottom part 101, and the position of the bottom part 101 with respect to the lower end part of the cylindrical body part is determined.
  • the lower end of the cylindrical body 202 is fixed with screws 140 at a plurality of locations on the bottom.
  • the annular packing 130 becomes the lower end portion of the cylindrical body portion. Do not slide on the inner peripheral surface of. Therefore, the bottom 101 can be easily inserted into the lower end of the cylindrical body, and the assembly workability of the washing and dewatering tub 100 can be improved.
  • the annular projecting portion 121 and the positioning portion 122 may be configured such that, for example, the lower end portion of the cylindrical body portion is sandwiched between two arc-shaped molds, or a roller is rolled on the outer peripheral surface of the lower end portion of the cylindrical body portion. By doing so, it can be formed.
  • a large hydraulic device is required.
  • the annular protrusion 121 and the positioning portion 122 are formed with the roller, such a hydraulic device is unnecessary. It is.
  • FIG. 5 is an enlarged view showing a cross section of the main part of the washing and dewatering tub 200 according to the second embodiment of the present invention.
  • the same components as those of the first embodiment are denoted by the same reference numerals as those of the components of the first embodiment. Also in the following description, the same components as those of the first embodiment are denoted by the same reference numerals as those of the components of the first embodiment.
  • the washing and dewatering tub 200 includes a bottom 201 made of synthetic resin (for example, plastic), a cylindrical body 202 made of metal (for example, stainless steel), an annular groove 212, an annular packing 130, and an annular protrusion 221. And.
  • the annular groove 212 is an example of an annular packing holding portion.
  • the annular protrusion 221 is an example of a close contact forming part.
  • the annular groove 212 is provided over the entire circumference of the outer peripheral surface of the bottom 201 and extends along the circumferential direction of the outer peripheral surface.
  • the shape of the annular groove 212 is designed to accommodate a part of the annular packing 130. That is, the depth of the annular groove 212 is shallower than the radial thickness of the annular packing 130 (the value obtained by subtracting the inner diameter of the annular packing 130 from the outer diameter of the annular packing 130).
  • the annular packing 130 is compressed in the axial direction by the annular protrusion 221, and is provided in the annular groove 212 over the entire circumference of the annular groove 212.
  • the annular protrusion 221 is provided at the lower end of the cylindrical body 102 and protrudes radially inward.
  • the annular projecting portion 221 extends over the entire circumference of the lower end portion of the cylindrical body portion 102 along the circumferential direction of the lower end portion of the cylindrical body portion 102.
  • the annular protrusion 221 is in close contact with the annular packing 130.
  • the annular projecting portion 221 also serves as a positioning portion for determining the position of the bottom portion 201 with respect to the lower end portion of the cylindrical body portion 202.
  • the structure for fixing the lower end portion of the cylindrical body 202 to the bottom 201 is the same as that of the first embodiment. That is, all the screws for fixing the lower end portion of the cylindrical body portion 202 to the bottom portion 201 are located below the annular packing 130.
  • the metal cylindrical body 202 can be formed by, for example, bending a metal plate into a conical shape. At this time, a part of the metal plate is plastically deformed in the circumferential direction, so that an annular protrusion 221 that substantially matches the target shape can be provided at the lower end of the cylindrical body 202. Therefore, the annular protrusion 221 can be brought into close contact with the entire circumference of the annular packing 130. As a result, even if water is stored in the washing and dewatering tub 200, water is prevented from leaking from between the inner peripheral surface of the lower end portion of the cylindrical body 202 and the outer peripheral surface of the bottom portion 201. It can be prevented from falling.
  • the bottom 201 is made of a synthetic resin, the material cost can be reduced compared to a bottom formed of, for example, stainless steel. Therefore, the washing and dewatering tub 200 can reduce the manufacturing cost.
  • the annular projecting portion 221 also serves as a positioning portion for determining the position of the bottom 201 with respect to the lower end portion of the cylindrical body portion 202. Therefore, it is not necessary to provide a positioning portion separately from the annular projecting portion. Therefore, the number of manufacturing steps of the washing and dewatering tub 200 can be reduced as compared with the first embodiment.
  • the washing / dehydrating tub 200 can be manufactured as follows.
  • a stainless steel plate having a thickness of 0.5 to 0.6 mm as an example of a metal plate is bent into a cylindrical shape so that the opening diameter at the lower end is smaller than the opening diameter at the upper end, and the cylindrical body is After the formation, an annular projecting portion 221 that projects, for example, 5 mm to 6 mm radially inward over the entire circumference of the lower end portion of the cylindrical body portion is formed.
  • the bottom portion 201 in which a part of the annular packing 130 is accommodated in the annular groove 212 is inserted into the lower end portion where the annular protrusion 221 is formed.
  • the annular projecting portion 221 contacts the upper end surface of the bottom portion 201, and the position of the bottom portion 201 with respect to the lower end portion of the cylindrical body portion 202 is determined.
  • the annular protrusion 221 is in close contact with the entire circumference of the annular packing 130.
  • the lower end of the cylindrical body 202 is fixed to a plurality of locations of the bottom 201 with screws.
  • annular protrusion 221 can also be formed using two arc-shaped molds or rollers.
  • FIG. 6 is an enlarged view showing a cross section of a main part of the washing and dewatering tub 300 according to the third embodiment of the present invention.
  • the same components as those of the first embodiment are denoted by the same reference numerals as those of the components of the first embodiment. Also in the following description, the same components as those of the first embodiment are denoted by the same reference numerals as those of the components of the first embodiment.
  • the washing and dewatering tub 300 includes a bottom portion 301 made of synthetic resin (for example, plastic), a cylindrical body portion 302 made of metal (for example, stainless steel), an annular groove 312, an annular packing 130, first and first Two annular protrusions 321A and 321B are provided.
  • the annular groove 312 is provided over the entire circumference of the outer peripheral surface of the bottom portion 301 and extends along the circumferential direction of the outer peripheral surface.
  • the shape of the annular groove 312 is designed to accommodate a part of the annular packing 130. That is, the depth of the annular groove 312 is shallower than the radial thickness of the annular packing 130 (the value obtained by subtracting the inner diameter of the annular packing 130 from the outer diameter of the annular packing 130).
  • the annular packing 130 is compressed in the radial direction by an adjacent portion 326 that is adjacent to the first and second annular protrusions 321A and 321B in the vertical direction, and is provided in the annular groove 312 over the entire circumference of the annular groove 312. ing.
  • the adjacent portion 326 is an example of a portion adjacent to the annular protrusion in the vertical direction.
  • the first annular protrusion 321A is provided at the lower end of the cylindrical body 102 and protrudes radially inward.
  • the second annular projecting portion 321B is provided at the lower end of the cylindrical body portion 102 so as to be positioned below the first annular projecting portion 321A, and projects inward in the radial direction.
  • the first and second annular projecting portions 321 ⁇ / b> A and 321 ⁇ / b> B extend over the entire circumference of the lower end portion of the cylindrical body portion 102 along the circumferential direction of the lower end portion of the cylindrical body portion 102.
  • the first and second annular protrusions 321A and 321B sandwich the peripheral portion of the annular groove 312.
  • the vertical length between the first annular protrusion 321A and the second annular protrusion 321B, that is, the vertical length of the adjacent portion 326 is longer than the width of the annular groove 312.
  • a through hole 323 into which the screw 340 is inserted is provided at the lower end portion of the cylindrical body portion 302.
  • the bottom portion 301 fixes the cylindrical body portion 302.
  • the screw holes 313 are provided at a plurality of locations on the outer peripheral surface of the bottom portion 301, and all the screw holes 313 are located below the annular groove 312.
  • the metal cylindrical body 302 can be formed by, for example, bending a metal plate into a conical shape. At this time, by plastically deforming a part of the metal plate in the circumferential direction, the first and second annular projecting portions 321A and 321B and the adjacent portion 326 that substantially match the target shape are moved to the lower end of the cylindrical body 302. Can be provided. Therefore, the adjacent portion 326 can be brought into close contact with the entire circumference of the annular packing 130. As a result, even if water is stored in the washing and dewatering tub 300, water is prevented from leaking from between the inner peripheral surface of the lower end portion of the cylindrical body 302 and the outer peripheral surface of the bottom portion 301. It can be prevented from falling.
  • the washing and dewatering tank 300 can reduce the manufacturing cost.
  • first and second annular protrusions 321A and 321B sandwich the peripheral portion of the annular groove 312, the backlash of the bottom 301 can be reduced.
  • the washing / dehydrating tank 300 can be manufactured as follows.
  • a stainless steel plate having a thickness of 0.5 to 0.6 mm as an example of a metal plate is bent into a cylindrical shape so that the opening diameter at the lower end is smaller than the opening diameter at the upper end, and the cylindrical body is Form.
  • the lower end portion of the cylindrical body portion 302 is fixed to a plurality of locations of the bottom portion 301 with screws.
  • the adjacent portion 326 and the annular packing 130 are in close contact with each other, and the peripheral portion of the annular groove 312 is formed by the first and second annular protrusions 321A and 321B.
  • the first and second annular protrusions 321A and 321B can also be formed using two arc-shaped molds or rollers.
  • FIG. 7 shows an external view of a vertical washer / dryer as an example of a washing machine according to the fourth embodiment of the present invention as viewed from the upper front side
  • FIG. 8 shows a top view of the vertical washer / dryer. Yes.
  • the vertical washing and drying machine of the fourth embodiment includes a metal or synthetic resin main body casing 1001, a water tank 1002 (shown in FIG. 9), and a washing and dewatering tank 1100 (see FIG. 9) and an operation display unit 1005 provided on the upper surface of the main body casing 1001.
  • the user operates the operation display unit 1005 to select a driving action. Further, the operation display unit 1005 displays the driving state with characters and numbers.
  • FIG. 9 is a longitudinal sectional view taken along line III-III in FIG.
  • the main body casing 1001 is formed in a square tube shape and has an upper surface opening on the upper surface and a lower surface opening on the lower surface.
  • a synthetic resin upper surface plate 1011 provided with an operation display unit 1005 and the like is fixed to the upper surface opening of the main body casing 1001.
  • a base 1012 made of synthetic resin is fixed to the lower surface opening of the main casing 1001.
  • the upper surface plate 1011 is provided with a laundry input port 1001a for inputting laundry into the vertical laundry dryer.
  • An upper lid 1004 for opening and closing the laundry input port 1001a is rotatably supported by the upper surface plate 1011 on the heel side (rear side) of the vertical laundry dryer.
  • the laundry input port 1001a is opened and closed by rotating the upper lid 1004 up and down.
  • a water tank 1002 is disposed, and a washing and dewatering tank 1100 is disposed in the water tank 1002. That is, the main body casing 1001 houses a washing / dehydrating tub 1100 and a water tank 1002 for storing the washing / dehydrating tub 1100. In the washing and dewatering tank 1100, water for washing laundry or water for rinsing the laundry is collected.
  • Each of the water tank 1002 and the washing / dehydrating tank 1100 has a bottomed cylindrical shape with the upper side opened, and the central axis is parallel to the vertical direction. The central axis of the water tank 1002 coincides with the central axis of the washing / dehydrating tank 1100.
  • An annular balancer 1040 is attached to the edge of the upper opening of the washing / dehydrating tank 1100.
  • the annular balancer 1040 functions to suppress vibration when the washing and dewatering tub 1100 is rotated at a high speed for dehydrating the laundry.
  • a synthetic resin stirring blade (pulsator) 1020 is rotatably disposed on the bottom surface in the washing and dewatering tank 1100.
  • a driving unit 1050 for driving the washing / dehydrating tank 1100 and the stirring blade 1020 is installed below the water tank 1002.
  • the central portion of the stirring blade 1020 is attached to the tip of the rotation shaft 1051 of the drive unit 1050, and the bottom portion of the water tank 1002 is attached to a location below the tip of the rotation shaft 1051.
  • the vertical washer / dryer includes a water supply unit 1010 for supplying water into the washing / dehydrating tank 1100.
  • FIG. 10 shows an enlarged longitudinal sectional view of the main part of the washing / dehydrating tank 1100.
  • the same components as those in FIG. 9 are denoted by the same reference numerals.
  • the washing and dewatering tub 1100 includes a cylindrical body 1101 made of metal (for example, stainless steel) and a bottom made of a synthetic resin (for example, plastic) disposed on the lower end side of the cylindrical body 1101. 1102.
  • This cylindrical body part 1101 has a dewatering drain hole 1101d above the washing water level, and has a peripheral wall whose diameter increases toward the upper side (see FIG. 12).
  • the bottom part 1102 has a cup shape in which a recess for accommodating the stirring blade 1020 is formed.
  • a plurality of drainage grooves 1111 extending in the vertical direction are provided on the inner peripheral surface of the cylindrical body 1101.
  • the water in the washing / dehydrating tub 1100 receives centrifugal force and rises along the inner peripheral surface of the washing / dehydrating tub 1100.
  • the water rising along the inner peripheral surface of the washing and dewatering tub 1100 is guided to a gap (not shown) provided in the upper portion by the drainage groove 1111 and from the gap and the dewatering drain hole 1101d. It comes out between the water tank 1002 and the washing and dewatering tank 1100.
  • FIG. 11 shows a back view of the washing / dehydrating tank 1100.
  • the same reference numerals are assigned to the same components as those in FIGS.
  • FIG. 12 is a longitudinal sectional view taken along line VI-VI in FIG.
  • a region A (dotted circle portion) shown in FIG. 12 shows a portion for fixing the annular packing presser 1103 (shown in FIG. 13A) to the bottom portion 1102 with a screw, and a region B (dotted circle portion) shown in FIG.
  • thread via the annular packing presser 1103 (shown in FIG. 14A) to the bottom part 1102 is shown.
  • the annular packing retainer 1103 is an example of an adhesion forming portion.
  • FIG. 13A shows an enlarged sectional view of region A in FIG. 12 (without annular packing 1104)
  • FIG. 13B shows an enlarged sectional view of the state in which the annular packing 1104 in region A of FIG. 12 is mounted.
  • 13A and 13B 1103a is an outer peripheral wall portion, 1103b is an inclined portion, 1103c is an annular bottom portion, and 1103d is an inner peripheral wall portion (see FIG. 16).
  • a flange portion 1102 a is provided over the entire circumference of the outer peripheral surface of the bottom portion 1102.
  • a positioning portion 1110 that protrudes radially inward from the outer peripheral edge of the flange portion 1102 a is provided over the entire circumference at the lower end portion of the cylindrical body portion 1101.
  • the cross section of the positioning portion 1110 is substantially V-shaped.
  • the bottom part 1102 is inserted into the lower end opening of the cylindrical body part 1101 from the lower side, the upper part of the flange part 1102a of the bottom part 1102 abuts on the positioning part 1110, and the bottom part 1102 is positioned with respect to the cylindrical body part 1101. Yes.
  • an annular packing holding portion H is formed between the lower side of the positioning portion 1110 of the cylindrical body portion 1101 and the outer peripheral surface of the bottom portion 1102.
  • An annular packing 1104 is held by the packing holding portion H.
  • the cross section of the annular packing 1104 is circular (in a state where no pressure is applied from the periphery). Note that the cross-sectional shape of the annular packing 1104 is not limited to a circular shape, and may be set as appropriate according to the configuration of the cylindrical body and the bottom.
  • the annular packing retainer 1103 is inserted between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surface of the bottom portion 1102 from below, and the annular packing retainer 1103 is attached to the bottom portion 1102 with screws 1121.
  • the annular packing 1104 is pressed by the inclined portion 1103 b at the upper end of the annular packing retainer 1103 by tightening the screw 1121 into the screw hole 1122 of the bottom portion 1102 from below.
  • the annular packing 1104 is elastically deformed so that the annular packing 1104 is urged radially outward with respect to the inner peripheral surface of the cylindrical body 1101.
  • a plurality of tightening points by the screws 1121 are provided in the annular packing retainer 1103 in the circumferential direction and at equal intervals, and the annular packing 1104 is uniformly pressed by the upper end of the annular packing retainer 1103.
  • the annular packing 1104 is further pressed against the lower surface of the flange portion 1102a of the bottom portion 1102. Therefore, the space between the cylindrical body 1101 and the bottom 1102 can be reliably sealed.
  • the ring packing 1104 is elastically deformed by pressing the annular packing 1104 at the upper end of the annular packing retainer 1103 at the same time as the screw 1121 for attaching the annular packing retainer 1103 to the bottom portion 1102 is tightened. Since the annular packing 1104 is urged toward the radially outer side with respect to the inner peripheral surface of the body portion 1101, the assemblability is good.
  • FIG. 14A shows an enlarged sectional view of region B in FIG. 12 (without the annular packing 1104)
  • FIG. 14B shows an enlarged sectional view of the state in which the annular packing 1104 in region B of FIG. Yes. 14A and 14B, the same reference numerals are given to the same components as those in FIG. 13A.
  • the bottom 1102 is attached to the lower end side of the cylindrical body 1101 with a screw 1123 via an annular packing retainer 1103.
  • a fixing part of the bottom part 1102 is provided in the vicinity of the annular packing 1104 on the lower end side of the cylindrical body part.
  • the annular packing holder 1103 can also be used for fixing the cylindrical body 1101 and the bottom 1102.
  • a plurality of tightening points by the screw 1123 are provided on the lower end side of the cylindrical body 1101 in the circumferential direction and at equal intervals, and the annular packing 1104 is formed into a cylindrical shape by the inclined portion 1103b at the upper end of the annular packing retainer 1103. It is pressed against the body 1101.
  • FIG. 15 is an exploded perspective view of the washing / dehydrating tank 1100.
  • the washing and dewatering tub 1100 has a bottom part 1102 attached to the inner periphery of the lower end of the cylindrical body part 1101.
  • the annular packing 1104 is inserted into the packing holding portion H (shown in FIGS. 13A and 14A) between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surface of the bottom 1102, the cylindrical body 1101 is inserted.
  • An annular packing retainer 1103 is inserted from below between the inner peripheral surface and the outer peripheral surface of the bottom 1102.
  • annular packing retainer 1103 is attached to the bottom 1102 by tightening a screw 1121 (shown in FIG. 13A) from below, and then an annular packing retainer is tightened by tightening a screw 1123 (shown in FIG. 14A) from the outside in the radial direction.
  • the cylindrical body 1101 and the bottom 1102 are fixed via 1103.
  • the annular packing holder 1103 includes a short cylindrical outer peripheral wall portion 1103a, an inclined portion 1103b provided at the upper end of the outer peripheral wall portion 1103a, and a lower end of the outer peripheral wall portion 1103a.
  • An annular bottom 1103c provided over the entire circumference of the inner circumferential surface on the side, a short cylindrical inner circumferential wall 1103d provided over the entire circumference on the inner circumferential side of the annular bottom 1103c, and an inner circumferential surface of the outer circumferential wall 1103a And a plurality of ribs 1103e connecting the outer peripheral surface of the inner peripheral wall portion 1103d.
  • the upper end of the inner peripheral wall portion 1103d is lower than the inclined portion 1103b provided at the upper end of the outer peripheral wall portion 1103a.
  • the inclined portion 1103b has an inclined surface that is inclined so as to gradually become lower from the inner peripheral side toward the outer peripheral side.
  • a plurality of first screw hole portions 1103f are provided at intervals in the circumferential direction of the outer peripheral wall portion 1103a.
  • the first screw hole 1103f has a screw hole 1124 in FIG. 14A.
  • the annular bottom portion 1103c and the annular bottom portion 1103c are provided with a plurality of second screw hole portions 1103g at intervals in the circumferential direction.
  • the second screw hole 1103g has a screw hole 1122 in FIG. 13A.
  • FIG. 18 shows a side view of the annular packing retainer 1103
  • FIG. 19 shows a longitudinal sectional view taken along line XIII-XIII in FIG. 18 and 19, the same components as those in FIG. 17 are denoted by the same reference numerals.
  • FIG. 20 shows a side view of the joint portion of the cylindrical body 1101 of the washing and dewatering tub 1100.
  • 21A shows a cross-sectional view taken along line XVA-XVA in FIG. 20
  • FIG. 21B shows a cross-sectional view taken along line XVB-XVB in FIG. 20
  • FIG. 21C shows a cross-sectional view taken along line XVC-XVC in FIG. FIG.
  • the peripheral wall of the cylindrical body 1101 is a conical non-porous wall that is inclined with respect to the central axis of the washing and dewatering tub 1100.
  • the cylindrical body 1101 is a conical body whose diameter is increased upward by cutting a thin plate (thickness 0.5 to 0.6 mm) made of, for example, stainless steel into a fan shape and then roll forming.
  • the plate member 1101a is formed into a cylindrical shape by joining the roll-formed seam portion by gouge folding.
  • An extension piece 1101b extending in the circumferential direction is formed at one joint end of the seam portion of the cylindrical body 1101 at the upper end of the goby fold S (see FIG. 21C) of the cylindrical body 1101 shown in FIG.
  • This extension piece 1101b By superposing this extension piece 1101b on the other joining end, two overlapping portions are formed as shown in FIG. 21A, and through holes 1151 and 1152 are formed in both joining end portions in the two overlapping portions.
  • the balancer 1040 (shown in FIG. 9) is screwed through the through holes 1151 and 1152 to prevent the goby fold S from coming off due to centrifugal force during dehydration.
  • an extension piece 1101c extending in the circumferential direction is formed at one joint end portion of the joint portion of the cylindrical trunk portion 1101 at the lower end of the goby fold S of the cylindrical trunk portion 1101, and this extension piece 1101c is connected to the other end portion.
  • two overlapping portions are formed by polymerization at the joining end portions, and through holes 1153 and 1154 are formed at both joining end portions in the two overlapping portions, and the through holes 1153, By fixing with screws via 1154, the strength of the lower end side of the joint portion of the cylindrical body 1101 is increased.
  • the annular packing 1104 held by the annular packing holding portion H between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surface of the bottom portion 1102 is replaced with the annular packing.
  • the upper end of the presser 1103 is pressed upward to be elastically deformed, and the annular packing 1104 is urged toward the outer side in the radial direction with respect to the inner peripheral surface of the cylindrical body 1101, whereby the inner periphery of the cylindrical body 1101.
  • the surface can be brought into close contact with the annular packing 1104, and the water tightness between the inner peripheral surface of the cylindrical body 1101 and the annular packing 1104 can be improved.
  • the annular packing press 1103 When the annular packing press 1103 is attached to the bottom 1102 with the annular packing 1104 fitted between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surface of the bottom 1102 and the outer peripheral surface of the bottom 1102. Furthermore, by pressing the annular packing 1104 against the annular packing 1104 at the upper end, the annular packing 1104 can be easily elastically deformed, and watertightness can be secured with good assemblability. Therefore, the watertightness between the metal cylindrical body 1101 and the synthetic resin bottom 1102 can be improved with a simple configuration.
  • the cost can be reduced and the weight can be reduced.
  • the gap between the stirring blade 1020 and the bottom 1102 can be easily optimized so that foreign matter such as coins can be prevented from entering the gap between the stirring blade (pulsator) 1020 and the bottom 1102.
  • the flange portion 1102 a provided over the entire outer periphery of the bottom portion 1102 moves upward in the axial direction of the annular packing 1104. Since the movement is restricted, the annular packing 1104 is in close contact with the lower surface of the flange portion 1102a. Thereby, the watertightness between the flange part 1102a of the bottom part 1102 and the annular packing 1104 can be improved.
  • the positioning portion 1110 provided at the lower end portion of the cylindrical body portion 1101 projects above the flange portion 1102a of the bottom portion 1102 and radially inward from the outer peripheral edge of the flange portion 1102a.
  • the synthetic resin bottom 1102 is disposed on the lower end side of the cylindrical body 1101, the upper side of the flange 1102 a of the bottom 1102 comes into contact with the positioning part 1110 of the cylindrical body 1101, and the cylindrical body 1101
  • the bottom 1102 can be positioned.
  • the upper end of the annular packing retainer 1103 is inclined so as to gradually become lower from the inner peripheral side toward the outer peripheral side, thereby pressing the annular packing 1104 upward at the upper end of the annular packing retainer 1103.
  • the annular packing 1104 is spread outward in the radial direction. Thereby, the contact pressure of the annular packing 1104 to the inner peripheral surface side of the cylindrical body 1101 is increased, and the inner peripheral surface of the cylindrical body 1101 can be brought into close contact with the annular packing 1104, and The watertightness between the inner peripheral surface of the trunk portion 1101 and the annular packing 1104 can be further improved.
  • the upper end of the annular packing retainer 1103 may be curved so as to gradually become lower from the inner peripheral side toward the outer peripheral side.
  • the strength of the bottom 1102 can be improved by using a material having higher rigidity than the material of the bottom 1102 for the annular packing retainer 1103.
  • the upper and lower ends of the joint portion of the cylindrical body portion 1101 joined by the goose fold caulking of the body plate material 1101a are overlapped by extending the body plate material 1101a, and the overlapped portions are fastened together with screws. Thereby, the strength of the joint portion of the cylindrical body 1101 can be improved.
  • the vertical washer / dryer having the above-described configuration, the water tightness between the metal cylindrical body 1101 and the synthetic resin bottom 1102 can be improved with a simple configuration, and the reduction in water-saving performance can be prevented. .
  • the annular packing retainer 1103 that is inclined so as to gradually decrease from the inner peripheral side toward the outer peripheral side is used.
  • the annular packing retainer is not limited to this, and the upper end is It may be a flat surface, hemispherical shape, a palm shape having an outer peripheral inclined surface and an inner peripheral inclined surface, or the like.
  • the shape of the upper end of the annular packing retainer elastically deforms the annular packing 1104 so that the annular packing 1104 is urged radially outward with respect to the inner peripheral surface of the cylindrical body 1101. Anything is acceptable.
  • FIG. 22A is an enlarged cross-sectional view (without an annular packing 1104) of the main part corresponding to region B of FIG. 12 of a vertical washer / dryer as an example of the washing machine of the fifth embodiment of the present invention.
  • 22B is an enlarged cross-sectional view of a state in which the annular packing 1104 of the vertical washing dryer is mounted.
  • the washing / dehydrating tub of the fifth embodiment has the same configuration as the washing / dehydrating tub 1100 of the vertical washer / dryer of the fourth embodiment except for the bottom flange portion 2102a and the upper end of the annular packing press 2103.
  • FIG. 7 to FIG. 10 are used.
  • the lower surface of the flange portion 2102a of the bottom portion 2102 of the fifth embodiment is formed with an inclined surface 2102b which is inclined so as to gradually become lower from the outer peripheral side toward the inner peripheral side.
  • the lower surface of the flange portion 2102a of the bottom portion 2102 may be curved so as to gradually decrease from the outer peripheral side toward the inner peripheral side.
  • the annular packing holder 2103 has a flat surface 2103b at the upper end.
  • the annular packing retainer 2103 has the same configuration as the annular packing retainer 1103 of the fourth embodiment except for the flat surface 2103b at the upper end.
  • the annular packing retainer 2103 is an example of an adhesion forming portion.
  • the lower inclined surface 2102b of the flange portion 2102a of the bottom portion 2102 is inclined so as to gradually become lower from the outer peripheral side toward the inner peripheral side.
  • the annular packing 1104 is pressed upward by the flat surface 2103b at the upper end of the annular packing retainer 2103, the annular packing 1104 is pushed radially outward by the inclined surface 2102b of the flange portion 2102a.
  • the annular packing retainer 2103 having a flat upper surface 2103b is used.
  • the annular packing retainer is not limited to this, and the upper end gradually decreases from the inner peripheral side toward the outer peripheral side. It may be inclined or curved so as to be.
  • the shape of the upper end of the annular packing retainer elastically deforms the annular packing 1104 so that the annular packing 1104 is urged radially outward with respect to the inner peripheral surface of the cylindrical body 1101. Anything is acceptable.
  • the washing / dehydrating tub of the fifth embodiment has the same effect as the washing / dehydrating tub 1100 of the fourth embodiment.
  • the washing and dewatering tub according to the sixth embodiment of the present invention has the same configuration as the washing and dewatering tub 1100 of the vertical washer / dryer according to the fourth embodiment except for the positioning portion. Incorporate.
  • the lower end portion of the cylindrical body portion 1101 has a plurality of protrusions that protrude above the flange portion 1102a of the bottom portion 1102 and radially inward from the outer peripheral edge of the flange portion 1102a. Positioning portions (not shown) are provided at intervals in the radial direction.
  • the washing / dehydrating tub of the sixth embodiment has the same effect as the washing / dehydrating tub 1100 of the fourth embodiment.
  • the present invention is applied to a vertical washing machine.
  • the present invention may be applied to a vertical washing machine having no drying function.
  • the vertical washer / dryer provided with a metal cylindrical body portion having a non-perforated peripheral wall has been described.
  • the present invention is not limited to this, and a cylinder having a plurality of holes in the peripheral wall.
  • the present invention may be applied to a washing and dewatering tank provided with a cylindrical body and a washing machine equipped with the washing and dewatering tank.
  • the vertical type washing and drying machine provided with the washing and dewatering tub has been described.
  • the present invention is not limited thereto, and the present invention may be applied to a washing machine having no drying function. .
  • the washing and dewatering tub 100, 200, 300, 1100 of the present invention A metal cylindrical body 102, 202, 303, 1101; Synthetic resin bottoms 101, 201, 301, 1102, 2102 disposed on the lower end side of the cylindrical body parts 102, 202, 303, 1101, Annular packing holding portions 112, 212, H formed between the bottom portions 101, 201, 301, 1102, 2102 and the inner peripheral surfaces of the cylindrical body portions 102, 202, 303, 1101; Held by the annular packing holding portions 112, 212, H between the inner peripheral surface of the cylindrical body portions 102, 202, 303, 1101 and the outer peripheral surface of the bottom portions 101, 201, 301, 1102, 2102 Annular packings 130, 1104;
  • the annular packings 130, 1104 are provided with close contact forming portions 121, 221, 1103, 2103 for tightly contacting the inner peripheral surfaces of the cylindrical body portions 102, 202, 303, 1101 over the entire circumference.
  • the water-saving performance is obtained by bringing the annular packings 130, 1104 into close contact with the inner peripheral surfaces of the cylindrical body portions 102, 202, 303, 1101 by the contact forming portions 121, 221, 1103, 2103. It is possible to realize a washing / dehydrating tub and a washing machine at a low production cost that can prevent a decrease in the temperature.
  • the watertightness between the metallic cylindrical body portions 102, 202, 303, 1101 and the synthetic resin bottom portions 101, 201, 301, 1102, 2102 can be improved with a simple configuration.
  • the bottom 101, 201, 301 has an outer peripheral surface
  • the cylindrical body portions 102, 202, 303 are made of non-peripheral peripheral walls whose lower end portions are attached to the outer peripheral surfaces of the bottom portions 101, 201, 301 and increase in diameter toward the upper side
  • the annular packing holding portion is formed by annular grooves 112 and 212 that are provided over the entire circumference of the outer peripheral surface of the bottom portions 101, 201, and 301 and extend along the circumferential direction of the outer peripheral surface of the bottom portions 101, 201, and 301.
  • the annular packing 130 is at least partially accommodated in the annular grooves 112 and 212 over the entire circumference of the annular grooves 112 and 212, and extends along the circumferential direction of the outer peripheral surface of the bottom portions 101, 201, and 301.
  • the adhesion forming portion is provided over the entire circumference of the lower end portion of the cylindrical body portions 102, 202, 303 and extends along the circumferential direction of the lower end portion of the cylindrical body portions 102, 202, 303.
  • annular projecting portions 121, 221 projecting radially inward
  • the annular protrusions 121 and 221 or the portions 326 adjacent to the annular protrusions 321A and 321B in the vertical direction are in close contact with the annular packing 130.
  • the annular protrusions 121 and 221 can be provided at the lower ends of the cylindrical body portions 102, 202, and 303 by plastically deforming the metal plate, for example, so that they match the target shape.
  • the annular protrusions 121 and 221 can be brought into close contact over the entire circumference of the annular packing 130. That is, it is possible to prevent a gap from being generated on the entire circumference between the lower end portions of the cylindrical body portions 102, 202, and 303 and the annular packing 130.
  • the portion 326 adjacent to the annular protrusions 321A and 321B in the vertical direction can be provided at the lower end portion of the cylindrical body 303 by plastically deforming the metal plate, for example, so that it matches the target shape.
  • the portion 326 can be brought into close contact with the entire circumference of the annular packing 130. Therefore, similarly to the case where the annular protrusions 121 and 221 are in close contact with the annular packing 130, the water-saving performance is also achieved when the portion 326 adjacent to the annular protrusions 121 and 221 in the vertical direction is in close contact with the annular packing 130. It can be prevented from falling.
  • the bottom portions 101, 201, 301 are made of synthetic resin, the material cost can be reduced as compared with the bottom portions 101, 201, 301 formed of, for example, stainless steel. Therefore, the washing / dehydrating tank 100, 200, 300 can reduce the manufacturing cost.
  • a positioning portion 122 that protrudes radially inward above the annular protrusion 121 is provided at the lower end portion of the cylindrical body portion 102.
  • the positioning portion 122 can be brought into contact with the upper end surface of the bottom portion 101. Therefore, the position of the bottom 101 with respect to the lower end of the cylindrical body 102 can be easily determined.
  • a plurality of the positioning portions 122 are provided at predetermined intervals in the circumferential direction.
  • the position of the bottom portion 101 with respect to the lower end portion of the cylindrical body portion 102 can be easily determined.
  • a height H2 in the radial direction of the positioning portion 122 is lower than a height H1 in the radial direction of the annular protrusion 121.
  • the positioning part 122 can be formed by simple processing, and the deterioration of the aesthetic appearance in the cylindrical body part 102 can also be prevented.
  • the radially inner tip angle ⁇ 1 of the annular protrusion 121 is larger than the radially inner tip angle ⁇ 2 of the positioning portion 122.
  • the deformation amount of the annular packing 130 due to the adhesion can be increased. Therefore, the area where the annular protrusion 121 is in close contact with the annular packing 130 can be increased, and the watertightness between the lower end of the cylindrical body 102 and the annular packing 130 can be enhanced.
  • the annular projecting portion 221 also serves as a positioning portion for determining the position of the bottom portion 201 with respect to the lower end portion of the cylindrical body portion 202.
  • Screws 140 and 340 for fixing the lower end portions of the cylindrical body portions 102, 202, and 303 to the bottom portions 101, 201, and 301 are positioned below the annular packing 130.
  • the washing machine of this invention Outer box 1, A water tank 2 disposed in the outer box 1;
  • a driving device 52 that rotationally drives the washing and dewatering tubs 100, 200, and 300.
  • the close contact forming portions are annular packing presses 1103 and 2103 attached to the bottom portions 1102 and 2102 so as to press the annular packing 1104 held by the annular packing holding portion H from below at the upper end.
  • the upper ends of the annular packing retainers 1103 and 2103 press the annular packing 1104, so that the annular packing 1104 is urged radially outward against the inner peripheral surface of the cylindrical body 1101. Further, the annular packing 1104 is elastically deformed.
  • the annular packing 1104 held by the annular packing holding portion H between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surfaces of the bottom portions 1102 and 2102 is replaced with the annular packing holder 1103, 2103 is pressed upward at the upper end of 2103 and elastically deformed, and the annular packing 1104 is urged radially outward with respect to the inner peripheral surface of the cylindrical body 1101, whereby the inner peripheral surface of the cylindrical body 1101. Can be brought into close contact with the annular packing 1104, and the watertightness between the inner peripheral surface of the cylindrical body 1101 and the annular packing 1104 can be improved.
  • the annular packing retainers 1103 and 2103 are When attaching to 1102 and 2102, the annular packing 1104 can be easily elastically deformed by pressing the annular packing 1104 against the annular packing 1104 at the upper end, and watertightness can be secured with good assemblability. Therefore, the watertightness between the metal cylindrical body 1101 and the synthetic resin bottoms 1102 and 2102 can be improved with a simple configuration.
  • the cost can be reduced and the weight can be reduced.
  • the gap between the stirring blade 1020 and the bottom portions 1102 and 2102 can be easily optimized so that foreign matters such as coins can be prevented from entering the gap between the stirring blade (pulsator) 1020 and the bottom portions 1102 and 2102.
  • the bottom portions 1102 and 2102 have flange portions 1102a and 2102a provided over the entire outer periphery.
  • the annular packing 1104 is in contact with the lower surfaces of the flange portions 1102a and 2102a.
  • the flange portions 1102a and 2102a provided over the entire outer circumference of the bottom portions 1102 and 2102 are annular. Since the upward movement of the packing 1104 in the axial direction is restricted, the annular packing 1104 is in close contact with the lower surfaces of the flange portions 1102a and 2102a. Thereby, the watertightness between the flange parts 1102a and 2102a of the bottom parts 1102 and 2102 and the annular packing 1104 can be improved.
  • the lower surface of the flange portion 2102a of the bottom portion 2102 is inclined or curved so as to gradually become lower from the outer peripheral side toward the inner peripheral side.
  • the lower surface of the flange portion 2102a of the bottom portion 2102 is inclined (or curved) so as to gradually become lower from the outer peripheral side toward the inner peripheral side, whereby the upper end of the annular packing retainer 2103 is obtained.
  • the annular packing 1104 is pressed upward, the annular packing 1104 is spread outward in the radial direction by the lower surface of the flange portion 2102a.
  • the contact pressure of the annular packing 1104 to the inner peripheral surface side of the cylindrical body 1101 is increased, and the inner peripheral surface of the cylindrical body 1101 can be brought into close contact with the annular packing 1104, and
  • the watertightness between the inner peripheral surface of the trunk portion 1101 and the annular packing 1104 can be further improved.
  • a positioning portion 1110 protruding above the flange portions 1102a and 2102a of the bottom portions 1102 and 2102 and radially inward from the outer peripheral edges of the flange portions 1102a and 2102a. Is provided.
  • the positioning portion 1110 provided at the lower end portion of the cylindrical body portion 1101 has a diameter higher than the flange portions 1102a and 2102a of the bottom portions 1102 and 2102 and more than the outer peripheral edge of the flange portions 1102a and 2102a.
  • the upper sides of the flange portions 1102a and 2102a of the bottom portions 1102 and 2102 are the positioning portions 1110 of the cylindrical body portion 1101.
  • the bottom portions 1102 and 2102 can be positioned with respect to the cylindrical body 1101 by abutting.
  • the upper end portion of the annular packing retainer 1103 is inclined or curved so as to gradually decrease from the inner peripheral side toward the outer peripheral side.
  • the upper end of the annular packing retainer 1103 is inclined or curved so as to gradually decrease from the inner peripheral side toward the outer peripheral side.
  • the packing 1104 is pressed upward, the annular packing 1104 is spread outward in the radial direction.
  • the contact pressure of the annular packing 1104 to the inner peripheral surface side of the cylindrical body 1101 is increased, and the inner peripheral surface of the cylindrical body 1101 can be brought into close contact with the annular packing 1104, and The watertightness between the inner peripheral surface of the trunk portion 1101 and the annular packing 1104 can be further improved.
  • annular packing retainers 1103 and 2103 are attached to the bottom portions 1102 and 2102 with screws 1121, By tightening the screw 1121, the annular packing 1104 is pressed against the inner peripheral surface of the cylindrical body 1101 by pressing the annular packing 1104 at the upper ends of the annular packing holders 1103 and 2103.
  • the annular packing 1104 is elastically deformed so as to be urged toward.
  • the annular packing retainers 1103 and 2103 are fastened to the bottom portions 1102 and 2102, and at the same time, the annular packing retainers 1103 and 2103 are pressed against each other by pressing the annular packing 1104. Since the packing 1104 is elastically deformed and the annular packing 1104 is biased toward the radially outer side with respect to the inner peripheral surface of the cylindrical body 1101, the assemblability is good.
  • the bottom portions 1102 and 2102 are attached to the lower end side of the cylindrical body portion 1101 by screws 1123 via the annular packing retainers 1103 and 2103.
  • the annular portion on the lower end side of the cylindrical body portion 1101 is attached.
  • the fixing portions of the bottom portions 1102 and 2102 can be provided in the vicinity of the packing 1104, and the annular packing holders 1103 and 2103 can be used for fixing the bottom portions 1102 and 2102 and the cylindrical body portion 1101.
  • the material of the annular packing retainers 1103 and 2103 has higher rigidity than the material of the bottom portions 1102 and 2102.
  • the strength of the bottom portions 1102 and 2102 can be improved by using a material having higher rigidity than the material of the bottom portions 1102 and 2102 for the annular packing retainer 1103.
  • the cylindrical body portion 1101 has a body plate material 1101a rounded into a cylindrical shape, and the seam portion of the body plate material is joined by gouge folding except for the upper and lower ends, The upper and lower ends of the joint portion of the cylindrical body portion 1101 are fastened together with screws by overlapping and overlapping the body plate material 1101a.
  • the upper and lower ends of the seam portion of the cylindrical body portion 1101 joined by the goose-fold caulking of the body plate material 1101a are overlapped by extending the body plate material 1101a, and the overlapped portion is screwed. By tightening together, the strength of the seam portion of the cylindrical body 1101 can be improved.
  • the washing and dewatering tub 100, 200, 300 of the present invention includes: Synthetic resin bottoms 101, 201, 301 having an outer peripheral surface; Metal cylindrical body portions 102, 202, 303 having non-peripheral peripheral walls whose lower ends are attached to the outer peripheral surfaces of the bottom portions 101, 201, 301 and increase in diameter toward the upper side; Annular grooves 112, 212 provided over the entire circumference of the outer peripheral surface of the bottom portions 101, 201, 301 and extending along the circumferential direction of the outer peripheral surface of the bottom portions 101, 201, 301; An annular packing 130 that is at least partially accommodated in the annular grooves 112, 212 over the entire circumference of the annular grooves 112, 212, and extends along the circumferential direction of the outer peripheral surface of the bottom portions 101, 201, 301; It is provided over the entire circumference of the lower end of the cylindrical body 102, 202, 303, extends along the circumferential direction of the lower end of the cylindrical body 102, 202
  • annular projecting portion 121, 221 projecting inward
  • the annular protrusions 121 and 221 or the portions 326 adjacent to the annular protrusions 321A and 321B in the vertical direction are in close contact with the annular packing 130.
  • the annular projecting portions 121 and 221 can be provided at the lower ends of the cylindrical body portions 102, 202, and 303 by plastically deforming the metal plate, for example, so that they match the target shape.
  • the annular protrusions 121 and 221 can be brought into close contact with each other over the entire circumference of the annular packing 130. That is, it is possible to prevent a gap from being generated on the entire circumference between the lower end portions of the cylindrical body portions 102, 202, and 303 and the annular packing 130.
  • the portion 326 adjacent to the annular protrusions 321A and 321B in the vertical direction can be provided at the lower end portion of the cylindrical body 303 by plastically deforming the metal plate, for example, so that it matches the target shape.
  • the portion 326 can be brought into close contact with the entire circumference of the annular packing 130. Therefore, similarly to the case where the annular protrusions 121 and 221 are in close contact with the annular packing 130, the water-saving performance is also achieved when the portion 326 adjacent to the annular protrusions 121 and 221 in the vertical direction is in close contact with the annular packing 130. It can be prevented from falling.
  • the bottom portions 101, 201, 301 are made of synthetic resin, the material cost can be reduced as compared with the bottom portions 101, 201, 301 formed of, for example, stainless steel. Therefore, the washing / dehydrating tank 100, 200, 300 can reduce the manufacturing cost.
  • a positioning portion 122 that protrudes radially inward above the annular protrusion 121 is provided at the lower end portion of the cylindrical body portion 102.
  • the positioning portion 122 can be brought into contact with the upper end surface of the bottom portion 101. Therefore, the position of the bottom 101 with respect to the lower end of the cylindrical body 102 can be easily determined.
  • a plurality of the positioning portions 122 are provided at predetermined intervals in the circumferential direction.
  • the position of the bottom portion 101 with respect to the lower end portion of the cylindrical body portion 102 can be easily determined.
  • the radial height H2 of the positioning portion 122 is lower than the radial height H1 of the annular protrusion 121.
  • the positioning part 122 can be formed by simple processing, and the deterioration of the aesthetic appearance in the cylindrical body part 102 can also be prevented.
  • the radially inner tip angle ⁇ 1 of the annular protrusion 121 is larger than the radially inner tip angle ⁇ 2 of the positioning portion 122.
  • the deformation amount of the annular packing 130 due to the adhesion can be increased. Therefore, the area where the annular protrusion 121 is in close contact with the annular packing 130 can be increased, and the watertightness between the lower end of the cylindrical body 102 and the annular packing 130 can be enhanced.
  • the annular projecting portion 221 also serves as a positioning portion for determining the position of the bottom portion 201 with respect to the lower end portion of the cylindrical body portion 202.
  • Screws 140 and 340 for fixing the lower end portions of the cylindrical body portions 102, 202, and 303 to the bottom portions 101, 201, and 301 are positioned below the annular packing 130.
  • the washing machine of this invention Outer box 1, A water tank 2 disposed in the outer box 1;
  • a driving device 52 that rotationally drives the washing and dewatering tubs 100, 200, and 300.
  • the washing and dewatering tank of this invention is A metal cylindrical body 1101; Synthetic resin bottoms 1102 and 2102 which are arranged on the lower end side of the cylindrical body 1101 and form an annular packing holding part H between the inner peripheral surface of the cylindrical body 1101; An annular packing 104 held by the annular packing holding portion H between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surfaces of the bottom portions 1102, 2102; Annular packing holders 103, 1103 attached to the bottom parts 1102, 2102 so as to press the annular packing 104 held by the annular packing holding part H from below at the upper end, The upper ends of the annular packing retainers 103 and 1103 press the annular packing 104 so that the annular packing 104 is urged radially outward against the inner peripheral surface of the cylindrical body 1101. Further, the annular packing 104 is elastically deformed.
  • the annular packing 104 held by the annular packing holding portion H between the inner peripheral surface of the cylindrical body 1101 and the outer peripheral surfaces of the bottom portions 1102 and 2102 is replaced with the annular packing retainers 103 and 1103.
  • the upper end of the cylindrical body 110 is elastically deformed by pressing upward, and the annular packing 104 is urged toward the radially outer side with respect to the inner peripheral surface of the cylindrical body part 1101, thereby causing the inner peripheral surface of the cylindrical body part 1101 to be urged.
  • the ring-shaped packing 104 can be brought into close contact with each other, and the watertightness between the inner peripheral surface of the cylindrical body 1101 and the ring-shaped packing 104 can be improved.
  • the annular packing retainers 103 and 1103 are attached to the bottom portions.
  • the ring-shaped packing 104 is attached to the ring-shaped packing 104 at the upper end, the ring-shaped packing 104 can be easily elastically deformed, and watertightness can be secured with good assemblability. Therefore, the watertightness between the metal cylindrical body 1101 and the synthetic resin bottoms 1102 and 2102 can be improved with a simple configuration.
  • the cost can be reduced and the weight can be reduced.
  • the gap between the stirring blade 20 and the bottom portions 1102 and 2102 can be easily optimized so that foreign matter such as coins can be prevented from entering the gap between the stirring blade (pulsator) 20 and the bottom portions 1102 and 2102.
  • the bottom portions 1102 and 2102 have flange portions 1102a and 2102a provided over the entire outer periphery.
  • the annular packing 1104 is in contact with the lower surfaces of the flange portions 1102a and 2102a.
  • the flange portions 1102a and 2102a provided over the entire outer circumference of the bottom portions 1102 and 2102 are annular. Since the upward movement of the packing 1104 in the axial direction is restricted, the annular packing 1104 is in close contact with the lower surfaces of the flange portions 1102a and 2102a. Thereby, the watertightness between the flange parts 1102a and 2102a of the bottom parts 1102 and 2102 and the annular packing 1104 can be improved.
  • the lower surface of the flange portion 2102a of the bottom portion 2102 is inclined or curved so as to gradually become lower from the outer peripheral side toward the inner peripheral side.
  • the lower surface of the flange portion 2102a of the bottom portion 2102 is inclined (or curved) so as to gradually become lower from the outer peripheral side toward the inner peripheral side, whereby the upper end of the annular packing retainer 2103 is obtained.
  • the annular packing 1104 is pressed upward, the annular packing 1104 is spread outward in the radial direction by the lower surface of the flange portion 2102a.
  • the contact pressure of the annular packing 1104 to the inner peripheral surface side of the cylindrical body 1101 is increased, and the inner peripheral surface of the cylindrical body 1101 can be brought into close contact with the annular packing 1104, and
  • the watertightness between the inner peripheral surface of the trunk portion 1101 and the annular packing 1104 can be further improved.
  • a positioning portion 1110 protruding above the flange portions 1102a and 2102a of the bottom portions 1102 and 2102 and radially inward from the outer peripheral edges of the flange portions 1102a and 2102a. Is provided.
  • the positioning portion 1110 provided at the lower end portion of the cylindrical body portion 1101 has a diameter higher than the flange portions 1102a and 2102a of the bottom portions 1102 and 2102 and more than the outer peripheral edge of the flange portions 1102a and 2102a.
  • the upper sides of the flange portions 1102a and 2102a of the bottom portions 1102 and 2102 are the positioning portions 1110 of the cylindrical body portion 1101.
  • the bottom portions 1102 and 2102 can be positioned with respect to the cylindrical body 1101 by abutting.
  • the upper end portion of the annular packing retainer 1103 is inclined or curved so as to gradually decrease from the inner peripheral side toward the outer peripheral side.
  • the upper end of the annular packing retainer 1103 is inclined or curved so as to gradually decrease from the inner peripheral side toward the outer peripheral side.
  • the packing 1104 is pressed upward, the annular packing 1104 is spread outward in the radial direction.
  • the contact pressure of the annular packing 1104 to the inner peripheral surface side of the cylindrical body 1101 is increased, and the inner peripheral surface of the cylindrical body 1101 can be brought into close contact with the annular packing 1104, and The watertightness between the inner peripheral surface of the trunk portion 1101 and the annular packing 1104 can be further improved.
  • annular packing retainers 1103 and 2103 are attached to the bottom portions 1102 and 2102 with screws 1121, By tightening the screw 1121, the annular packing 1104 is pressed against the inner peripheral surface of the cylindrical body 1101 by pressing the annular packing 1104 at the upper ends of the annular packing holders 1103 and 2103.
  • the annular packing 1104 is elastically deformed so as to be urged toward.
  • the annular packing retainers 1103 and 2103 are fastened to the bottom portions 1102 and 2102, and at the same time, the annular packing retainers 1103 and 2103 are pressed against each other by pressing the annular packing 1104. Since the packing 1104 is elastically deformed and the annular packing 1104 is biased toward the radially outer side with respect to the inner peripheral surface of the cylindrical body 1101, the assemblability is good.
  • the bottom portions 1102 and 2102 are attached to the lower end side of the cylindrical body portion 1101 by screws 1123 via the annular packing retainers 1103 and 2103.
  • the annular portion on the lower end side of the cylindrical body portion 1101 is attached.
  • the fixing portions of the bottom portions 1102 and 2102 can be provided in the vicinity of the packing 1104, and the annular packing holders 1103 and 2103 can be used for fixing the bottom portions 1102 and 2102 and the cylindrical body portion 1101.
  • the material of the annular packing retainers 1103 and 2103 has higher rigidity than the material of the bottom portions 1102 and 2102.
  • the strength of the bottom portions 1102 and 2102 can be improved by using a material having higher rigidity than the material of the bottom portions 1102 and 2102 for the annular packing retainer 1103.
  • the cylindrical body portion 1101 has a body plate material 1101a rounded into a cylindrical shape, and the seam portion of the body plate material is joined by gouge folding except for the upper and lower ends, The upper and lower ends of the joint portion of the cylindrical body portion 1101 are fastened together with screws by overlapping and overlapping the body plate material 1101a.
  • the upper and lower ends of the seam portion of the cylindrical body portion 1101 joined by the goose-fold caulking of the body plate material 1101a are overlapped by extending the body plate material 1101a, and the overlapped portion is screwed. By tightening together, the strength of the seam portion of the cylindrical body 1101 can be improved.
  • Stirring blade 1040 Ring balancer 1050 ... Drive unit 1100 ... Washing and dewatering tub 1101 ... Cylindrical body part 1101a ... Body plate material 1101b, 1101c ... Extension piece 1102, 2102 ... Bottom part 1102a, 2102a ... Flange parts 1103, 2103 ... Annular packing retainer 1103a Outer peripheral wall portion 1103b ... Inclined portion 1103c ... annular bottom portion 1103d ... inner peripheral wall portion 1104 ... annular packing 1110 ... positioning portion 1111 ... drainage groove 1121, 1123 ... screw 1122, 1124 ... screw hole 2103b ... flat surface H ... annular shape Packing holder

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

La présente invention concerne un tube de lavage et de dessèchement (100) qui est pourvu : d'une section de corps cylindrique métallique (102) ; d'une section inférieure en résine synthétique (101) disposée sur le côté d'extrémité inférieure de la section de corps cylindrique (102) ; d'une section de maintien de garniture d'étanchéité annulaire (112) formée entre la section inférieure (101) et la surface périphérique interne de la section de corps cylindrique (102) ; d'une garniture d'étanchéité annulaire (130) maintenue dans la section de maintien de garniture d'étanchéité annulaire (112) placée entre la surface périphérique interne de la section de corps cylindrique (102) et la surface périphérique externe de la section inférieure (101) ; et d'une section de formation de contact étroit (121) destinée à amener la garniture d'étanchéité annulaire (130) à être en contact étroit sur toute sa circonférence avec la surface périphérique interne de la section de corps cylindrique (102).
PCT/JP2016/055564 2015-05-27 2016-02-25 Tube de lavage et de dessèchement et machine à laver WO2016189910A1 (fr)

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JP2015107747A JP6461711B2 (ja) 2015-05-27 2015-05-27 洗濯兼脱水槽および洗濯機
JP2015-107747 2015-05-27
JP2015-165661 2015-08-25
JP2015165661A JP6470145B2 (ja) 2015-08-25 2015-08-25 洗濯兼脱水槽および洗濯機

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018220870A1 (fr) * 2017-05-30 2018-12-06 シャープ株式会社 Réservoir de lavage/purge et lave-linge
WO2019038944A1 (fr) * 2017-08-25 2019-02-28 シャープ株式会社 Cuve de lavage et d'essorage et machine à laver

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JPH08224397A (ja) * 1995-02-22 1996-09-03 Toshiba Corp 洗濯機の脱水槽
JP2010531690A (ja) * 2007-06-29 2010-09-30 ビーエーエスエフ ソシエタス・ヨーロピア 洗濯機のためのバスケットアセンブリ

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JP3078684B2 (ja) * 1993-08-06 2000-08-21 シャープ株式会社 洗濯機
JP3063478B2 (ja) * 1993-09-08 2000-07-12 松下電器産業株式会社 洗濯兼脱水槽
KR20070098213A (ko) * 2006-03-31 2007-10-05 엘지전자 주식회사 세탁기
CN201121270Y (zh) * 2007-10-24 2008-09-24 无锡小天鹅股份有限公司 新型不锈钢桶底
JP2011072350A (ja) * 2009-09-29 2011-04-14 Hitachi Appliances Inc 洗濯機

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Publication number Priority date Publication date Assignee Title
JPH08224397A (ja) * 1995-02-22 1996-09-03 Toshiba Corp 洗濯機の脱水槽
JP2010531690A (ja) * 2007-06-29 2010-09-30 ビーエーエスエフ ソシエタス・ヨーロピア 洗濯機のためのバスケットアセンブリ

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018220870A1 (fr) * 2017-05-30 2018-12-06 シャープ株式会社 Réservoir de lavage/purge et lave-linge
CN110709554A (zh) * 2017-05-30 2020-01-17 夏普株式会社 洗涤兼脱水筒及洗衣机
JPWO2018220870A1 (ja) * 2017-05-30 2020-04-09 シャープ株式会社 洗濯兼脱水槽および洗濯機
CN110709554B (zh) * 2017-05-30 2021-11-09 夏普株式会社 洗涤兼脱水筒及洗衣机
WO2019038944A1 (fr) * 2017-08-25 2019-02-28 シャープ株式会社 Cuve de lavage et d'essorage et machine à laver
CN111032944A (zh) * 2017-08-25 2020-04-17 夏普株式会社 洗涤兼脱水缸和洗衣机
JPWO2019038944A1 (ja) * 2017-08-25 2020-09-17 シャープ株式会社 洗濯兼脱水槽および洗濯機
JP7003140B2 (ja) 2017-08-25 2022-01-20 シャープ株式会社 洗濯兼脱水槽および洗濯機
CN111032944B (zh) * 2017-08-25 2022-06-14 夏普株式会社 洗涤兼脱水缸和洗衣机

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