WO2018220870A1 - 洗濯兼脱水槽および洗濯機 - Google Patents

洗濯兼脱水槽および洗濯機 Download PDF

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Publication number
WO2018220870A1
WO2018220870A1 PCT/JP2017/030100 JP2017030100W WO2018220870A1 WO 2018220870 A1 WO2018220870 A1 WO 2018220870A1 JP 2017030100 W JP2017030100 W JP 2017030100W WO 2018220870 A1 WO2018220870 A1 WO 2018220870A1
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WO
WIPO (PCT)
Prior art keywords
annular packing
washing
cylindrical body
peripheral surface
annular
Prior art date
Application number
PCT/JP2017/030100
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English (en)
French (fr)
Japanese (ja)
Inventor
大江　宏和
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
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to JP2019521937A priority Critical patent/JP6955560B2/ja
Priority to CN201780091402.9A priority patent/CN110709554B/zh
Publication of WO2018220870A1 publication Critical patent/WO2018220870A1/ja

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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

  • This invention relates to a washing and dewatering tank and a washing machine.
  • Patent Document 1 As a washing and dewatering tub, as disclosed in Japanese Patent No. 3078684 (Patent Document 1), it is attached to a cylindrical body made of stainless steel plate and a peripheral edge of a lower end opening of the cylindrical body. Some have a bottom made of stainless steel and are placed in the water tank of the 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 cylindrical body is bent outwardly into a U-shape to form a goby fold.
  • the conventional washing and dewatering tub is made of a stainless steel plate for both the cylindrical body and the bottom, so if a bottom made of synthetic resin is used instead of the bottom made of stainless steel, 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.
  • the washing and dewatering tub does not have a through hole in the peripheral wall of the cylindrical body, even if water is collected in the washing and dehydrating tub during the washing process, the washing / dehydrating tub and the water Since water leaks out in the meantime, the water-saving performance deteriorates.
  • an object of the present invention is to provide a washing / dehydrating tub capable of improving the water-tightness between a metal cylindrical trunk and a synthetic resin bottom with a simple configuration, and a washing machine equipped with the washing / dehydrating tub. It is to provide.
  • the washing and dewatering tank 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 bottom portion has a plurality of flange portions provided over the entire circumference of the outer peripheral surface and spaced vertically. While the annular packing is in contact with the lower surface of the lowermost flange portion of the plurality of flange portions, The annular packing holder is elastically deformed by pressing the annular packing against the upper end of the annular packing holder.
  • the washing machine according to one aspect of the present invention is The washing and dewatering tank is provided.
  • the annular packing held by the packing holding portion between the inner peripheral surface of the metal cylindrical body and the outer peripheral surface of the synthetic resin bottom is moved upward at the upper end of the annular packing retainer.
  • a washing / dehydrating tub and a washing machine equipped with the washing / dehydrating tub that can improve the water-tightness of the metal cylindrical body and the bottom made of synthetic resin with a simple configuration by pressing and elastically deforming be able to.
  • FIG. 1 is an external perspective view of a vertical washing machine as an example of the washing machine according to the first embodiment of the present invention.
  • FIG. 2 is a top view of the vertical washing machine.
  • 3 is a longitudinal sectional view taken along line III-III in FIG.
  • FIG. 4 is an enlarged longitudinal sectional view of the main part of FIG.
  • FIG. 5 is a back view of the washing and dewatering tank.
  • 6 is a longitudinal sectional view taken along line VI-VI in FIG.
  • FIG. 7A is an enlarged cross-sectional view of a state where the annular packing in the region A of FIG. 6 is not attached.
  • FIG. 7B is an enlarged cross-sectional view of a state where the annular packing in the region A of FIG. 6 is attached.
  • FIG. 7A is an enlarged cross-sectional view of a state where the annular packing in the region A of FIG. 6 is attached.
  • FIG. 7B is an enlarged cross-sectional view of a state where the annular packing
  • FIG. 8A is an enlarged cross-sectional view of a state where the annular packing in region B of FIG. 6 is not attached.
  • FIG. 8B is an enlarged cross-sectional view of a state where the annular packing in the region B of FIG. 6 is mounted.
  • FIG. 9 is an exploded perspective view of the washing and dewatering tank.
  • FIG. 10 is a perspective view of the annular packing presser of the washing and dewatering tub.
  • FIG. 11 is a top view of the annular packing retainer.
  • FIG. 12 is a side view of the annular packing retainer.
  • 13 is a longitudinal sectional view taken along line XIII-XIII in FIG.
  • FIG. 14 is a perspective view of the bottom portion of the washing and dewatering tub as viewed obliquely from below.
  • FIG. 10 is a perspective view of the annular packing presser of the washing and dewatering tub.
  • FIG. 11 is a top view of the annular packing retainer.
  • FIG. 12
  • FIG. 15 is an enlarged cross-sectional view of a main part of a washing and dewatering tub of a vertical washing machine as an example of the washing machine according to the second embodiment of the present invention.
  • FIG. 16 is an enlarged cross-sectional view of the main part of the washing and dewatering tank.
  • FIG. 17 is a cross-sectional view of the lower end of the cylindrical body of the washing and dewatering tub.
  • FIG. 18 is an enlarged cross-sectional view of a main part of a washing and dewatering tub of a vertical washing machine as an example of the washing machine according to the third embodiment of the present invention.
  • FIG. 19 is an enlarged cross-sectional view of the main part of the washing and dewatering tank.
  • FIG. 20 is a cross-sectional view of the lower end of the cylindrical body of the washing and dewatering tub.
  • FIG. 1 is an external view of a vertical washing machine as an example of the washing machine according to the first embodiment of the present invention as viewed from the upper front side
  • FIG. 2 is a top view of the vertical washing machine.
  • the vertical washing machine of the first embodiment includes a body casing 1 made of metal or synthetic resin, a water tank 2 (shown in FIG. 3), and a washing and dehydrating tank 100 (FIG. 3). And an operation display section 5 provided on the upper surface of the main casing 1. The user operates the operation display unit 5 to select a driving action. In addition, the operation display unit 5 displays the driving state with characters and numbers.
  • FIG. 3 is a longitudinal sectional view taken along line III-III in FIG.
  • the main casing 1 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 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 washing machine is provided on the upper surface 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 washing machine. 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 (pulsator) 20 is rotatably disposed on the bottom surface in the washing and dewatering tub 100.
  • a clutch / brake mechanism 50 and a drive motor (not shown) constituting a drive unit for driving the washing and dewatering tank 100 and the stirring blade 20 are installed below the water tank 2, a clutch / brake mechanism 50 and a drive motor (not shown) constituting a drive unit for driving the washing and dewatering tank 100 and the stirring blade 20 are installed.
  • the central portion of the stirring blade 20 is attached to the tip of the rotating shaft 51 of the clutch / brake mechanism 50, and the bottom portion of the water tank 2 is attached to a location below the tip of the rotating shaft 51.
  • the vertical washing machine includes a water supply unit 10 for supplying water into the washing / dehydrating tub 100.
  • FIG. 4 shows an enlarged vertical cross-sectional view of the main part of the washing / dehydrating tank 100.
  • the same components as those in FIG. 3 are denoted by the same reference numerals.
  • the washing and dewatering tub 100 includes a cylindrical body portion 101 made of metal (for example, stainless steel) and a bottom portion made of synthetic resin (for example, plastic) disposed on the lower end side of the cylindrical body portion 101. 102.
  • the cylindrical body 101 has a dewatering drain hole 101d (shown in FIG. 9) above the water level during washing, and is formed of a peripheral wall whose diameter increases toward the upper side (see FIG. 6).
  • the bottom portion 102 has a cup shape in which a concave portion for accommodating the stirring blade 20 is formed.
  • a plurality of drainage grooves (not shown) extending in the vertical direction are provided on the inner peripheral surface of the cylindrical body 101.
  • the washing / dehydrating tub 100 rotates at a high speed during the dehydrating operation, 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 tank 100 is guided to a gap (not shown) provided in the upper part by the drainage groove, and the water tank is inserted from the gap and the dewatering drain hole 101d. 2 and the washing / dehydrating tub 100.
  • the peripheral wall of the cylindrical body 101 is a conical non-porous wall that is inclined with respect to the central axis of the washing and dewatering tub 100.
  • the cylindrical body 101 is a conical body whose diameter is increased upward by first cutting a thin plate (thickness of 0.5 to 0.6 mm) made of, for example, stainless steel into a fan shape and then roll forming.
  • a plate material is formed into a cylindrical shape by joining roll-formed seam portions by gouge folding caulking.
  • FIG. 5 shows a back view of the washing / dehydrating tub 100.
  • the same components as those in FIGS. 3 and 4 are denoted by the same reference numerals.
  • FIG. 6 is a longitudinal sectional view taken along line VI-VI in FIG.
  • a region A (dotted circle portion) shown in FIG. 6 is a portion where the annular packing retainer 103 (shown in FIG. 7A) is fixed to the bottom portion 102 with a screw, and a region B (dotted circle portion) shown in FIG.
  • thread via the annular packing presser 103 (shown in FIG. 8A) to the bottom part 102 is shown.
  • FIG. 7A shows an enlarged sectional view of region A in FIG. 6 (without the annular packing 104)
  • FIG. 7B shows an enlarged sectional view of the state in which the annular packing 104 of region A in FIG. 6 is mounted.
  • 103a is an outer peripheral wall portion
  • 103b is an upper end portion
  • 103c is an annular bottom portion
  • 103d is an inner peripheral wall portion (see FIG. 10).
  • the first flange portion 102a is provided over the entire outer peripheral surface of the upper end portion of the bottom portion 102.
  • a second flange portion 102b is provided over the entire circumference at a predetermined interval below the first flange portion 102a on the outer peripheral surface of the bottom portion 102.
  • a third flange portion 102c is provided over the entire circumference at a predetermined interval below the second flange portion 102b on the outer peripheral surface of the bottom portion 102.
  • an annular rib 102d extending downward from the base side of the third flange portion 102c of the bottom portion 102 is erected (see FIG. 14).
  • a positioning portion 110 is provided at the lower end portion of the cylindrical body portion 101 over the entire circumference so as to protrude above the first flange portion 102a of the bottom portion 102 and radially inward from the outer peripheral edge of the first flange portion 102a. It has been.
  • the cross section of the positioning portion 110 is substantially V-shaped.
  • the bottom part 102 is inserted into the lower end opening of the cylindrical body part 101 from the lower side, and the upper part of the first flange part 102a of the bottom part 102 comes into contact with the positioning part 110 to position the bottom part 102 with respect to the cylindrical body part 101. is doing.
  • an annular packing holding part H1 is formed between the lower side of the positioning part 110 of the cylindrical body part 101 and the outer peripheral surface of the annular rib 102d of the bottom part 102 and below the third flange part 102c. Is done.
  • the annular packing 104 is held by the annular packing holding portion H1.
  • the cross-section of the annular packing 104 is circular (in a state where no pressure is applied from the periphery). Note that the cross-sectional shape of the annular packing 104 is not limited to a circular shape, and may be set as appropriate according to the configuration of the cylindrical body and the bottom.
  • annular packing retainer 103 is inserted from below, and the annular packing retainer 103 is attached to the bottom 102 with a screw 121.
  • the annular packing 104 is pressed by the upper end portion 103 b of the annular packing retainer 103 by tightening the screw 121 into the screw hole 122 of the bottom portion 102 from below.
  • the upper end portion 103b of the annular packing retainer 103 has a substantially flat shape, and is chamfered over the entire circumference on the inner peripheral side and the outer peripheral side.
  • annular packing retainer 103 a plurality of tightening points by the screws 121 are provided in the annular packing retainer 103 in the circumferential direction and at equal intervals, and the annular packing 104 is uniformly pressed by the upper end of the annular packing retainer 103.
  • the annular packing 104 is further pressed against the lower surface of the third flange portion 102c of the bottom portion 102. Therefore, the space between the cylindrical body portion 101 and the bottom portion 102 can be reliably sealed.
  • the ring packing 104 is elastically deformed by pressing the annular packing 104 at the upper end of the annular packing retainer 103 at the same time as the screw 121 for attaching the annular packing retainer 103 to the bottom 102 is tightened. Since the annular packing 104 is urged toward the radially outer side with respect to the inner peripheral surface of the body portion 101, the assemblability is improved.
  • FIG. 8A shows an enlarged sectional view of the region B in FIG. 6 (without the annular packing 104)
  • FIG. 8B shows an enlarged sectional view of the state in which the annular packing 104 in the region B of FIG. Yes. 8A and 8B, the same components as those in FIG. 7A are denoted by the same reference numerals.
  • the bottom 102 is attached to the lower end side of the cylindrical body 101 with a screw 123 via an annular packing retainer 103.
  • the fixing portion of the bottom portion 102 is provided in the vicinity of the annular packing 104 on the lower end side of the cylindrical body portion 101 by tightening the screw 123 into the screw hole 124 of the bottom portion 102 from the outer peripheral surface side of the cylindrical body portion 101.
  • the annular packing retainer 103 can also be used for fixing the cylindrical body 101 and the bottom 102. Note that a plurality of tightening portions by the screw 123 are provided on the lower end side of the cylindrical body 101 in the circumferential direction and at equal intervals.
  • the upper flange portion 102a of the plurality of flange portions 102a, 102b, 102c provided on the entire outer periphery of the bottom portion 102 and spaced vertically is cylindrical. It is used for positioning the body portion 101 with respect to the positioning portion 110.
  • the lower flange portion 102 c is used for positioning the annular packing 104.
  • the intermediate flange portion 102 b is used to reinforce the strength of the bottom portion 102.
  • a plurality of flange portions 102a, 102b, 102c are provided on the outer peripheral surface of the bottom portion 102 at intervals in the vertical direction, and the flange portion 102c for positioning the annular packing 104 is disposed below, so that the annular packing 104 is provided.
  • the position of can be lowered. Thereby, the vertical dimension of the annular packing retainer 103 can be shortened, the insertion of the annular packing retainer 103 can be facilitated, and the annular packing 104 can be pressed firmly and uniformly, thereby improving the sealing performance. .
  • FIG. 9 shows an exploded perspective view of the washing / dehydrating tank 100.
  • the washing and dewatering tub 100 has a bottom 102 attached to the inner periphery of the lower end of the cylindrical body 101.
  • the annular packing 104 is inserted into the annular packing holding portion H1 (shown in FIGS. 7A and 8A) between the inner peripheral surface of the cylindrical barrel 101 and the outer peripheral surface of the bottom 102, the cylindrical barrel is inserted.
  • An annular packing retainer 103 is inserted from below between the inner peripheral surface of the portion 101 and the outer peripheral surface of the bottom portion 102.
  • annular packing retainer 103 is attached to the bottom 102 by tightening a screw 121 (shown in FIG. 7A) from below, and then an annular packing retainer is tightened by tightening a screw 123 (shown in FIG. 8A) from the outside in the radial direction.
  • the cylindrical body 101 and the bottom 102 are fixed via 103.
  • FIG. 10 shows a perspective view of the annular packing retainer 103 of the washing and dewatering tub 100
  • FIG. 11 shows a top view of the annular packing retainer 103.
  • the annular packing retainer 103 includes a short cylindrical outer peripheral wall portion 103a, an upper end portion 103b provided at the upper end of the outer peripheral wall portion 103a, and a lower end of the outer peripheral wall portion 103a.
  • An annular bottom portion 103c provided over the entire circumference of the inner circumferential surface on the side, a short cylindrical inner circumferential wall portion 103d provided over the entire circumference on the inner circumferential side of the annular bottom portion 103c, and an inner circumferential surface of the outer circumferential wall portion 103a And a plurality of ribs 103e connecting the outer peripheral surface of the inner peripheral wall portion 103d.
  • the upper end of the inner peripheral wall portion 103d is lower than the upper end portion 103b provided at the upper end of the outer peripheral wall portion 103a.
  • a plurality of first screw hole portions 103f are provided at intervals in the circumferential direction of the outer peripheral wall portion 103a.
  • the first screw hole portion 103f has a screw hole 124 shown in FIG. 8A.
  • the annular bottom portion 103c is provided with a plurality of second screw hole portions 103g at intervals in the circumferential direction.
  • the second screw hole portion 103g has a screw hole 122 shown in FIG. 7A.
  • FIG. 12 is a side view of the annular packing retainer 103
  • FIG. 13 is a longitudinal sectional view taken along line XIII-XIII in FIG. Is shown. 12 and 13, the same components as those in FIG. 11 are denoted by the same reference numerals.
  • FIG. 14 is a perspective view of the bottom 102 of the washing and dewatering tub 100 as viewed obliquely from below.
  • the same components as those in FIGS. 7A and 8A are denoted by the same reference numerals.
  • the first flange portion 102a, the second flange portion 102b, and the third flange portion 102c are provided at intervals in the vertical direction over the entire circumference of the outer peripheral surface of the upper end portion of the bottom portion 102. Further, an annular rib 102d extending downward from the base side of the third flange portion 102c of the bottom portion 102 is provided upright.
  • the annular packing 104 held by the annular packing holding portion H1 between the inner peripheral surface of the cylindrical body portion 101 and the outer peripheral surface of the bottom portion 102 is replaced with the annular packing.
  • the annular packing 104 is urged toward the radially outer side with respect to the inner peripheral surface of the cylindrical body 101.
  • drum 101 can be closely_contact
  • annular packing 104 when the annular packing 104 is pressed upward at the upper end of the annular packing retainer 103, a plurality of flange portions 102a, 102b, and 102c provided at intervals in the vertical direction over the entire circumference of the outer peripheral surface of the bottom portion 102. Since the lowermost flange portion 102c of these restricts the upward movement of the annular packing 104 in the axial direction, the annular packing 104 is in close contact with the lower surface of the third flange portion 102c. Thereby, the watertightness between the lowermost flange portion 102c of the bottom portion 102 and the annular packing 104 can be improved.
  • the annular packing retainer 103 is attached to the bottom 102 while the annular packing 104 is externally fitted between the inner circumferential surface of the cylindrical body 101 and the outer circumferential surface of the bottom 102 and on the outer circumferential surface of the bottom 102.
  • the annular packing 104 can be easily elastically deformed, and watertightness can be secured with good assemblability.
  • the watertightness between the metal cylindrical body 101 and the synthetic resin bottom 102 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 102 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 102.
  • a slide mold structure in the side surface direction (outside of the diameter) for the cylindrical body portion 101 and the screw hole portion of the bottom portion 102 of the washing / dehydrating tub 100 is necessary. Since a sufficient distance can be secured between the lower surface 102a and the upper surface of the third flange portion 102c, a slide mold structure having no problem in strength can be made. Therefore, since the first flange portion 102a and the third flange portion 102c can be formed by a vertical mold, it is possible to make a mold having an accurate diameter and without a step difference in the mold. As a result, it is possible to make a high-quality washing and dehydrating tub 100 with high roundness and little vibration, and a high water-saving washing and dehydrating tub 100 having a high sealing performance with the packing 104 without any step.
  • annular packing 104 is positioned by the lowermost flange portion 102c, the annular packing 104 does not protrude upward, and the aesthetic appearance can be maintained.
  • the positioning portion 110 provided at the lower end portion of the cylindrical body portion 101 is above the uppermost flange portion 102a of the plurality of flange portions 102a, 102b, 102c of the bottom portion 102 and the flange portion 102a.
  • the upper side of the uppermost flange portion 102 a of the bottom portion 102 is positioned on the cylindrical body portion 101.
  • the bottom part 102 can be positioned with respect to the cylindrical body part 101 in contact with the part 110.
  • the region below the positioning portion 110 of the cylindrical body 101 it becomes possible to assemble the bottom 102 having the same outer diameter as the inner diameter of the cylindrical body 101 from below.
  • the cylindrical body 101 and the bottom 102 can be assembled without a gap.
  • the strength of the bottom portion 102 can be improved by using a material having higher rigidity than the material of the bottom portion 102 for the annular packing retainer 103.
  • a vertical washing machine including a washing and dewatering tub 100 that can improve the water tightness between the metal cylindrical body 101 and the synthetic resin bottom 102 with a simple configuration, and can save water. Decline can be prevented.
  • the annular packing retainer 103 having a substantially flat upper end 103b is used.
  • the shape of the upper end of the annular packing retainer is not limited to this, and the annular packing 104 is elastically deformed. Any shape can be used.
  • FIG. 15 is an enlarged cross-sectional view (corresponding to the area A shown in FIG. 6) of the main part of the washing and dewatering tub of the vertical washing machine as an example of the washing machine according to the second embodiment of the present invention. Shows an enlarged sectional view (corresponding to a region B shown in FIG. 6) of a main part of the washing and dewatering tub of the vertical washing machine.
  • the washing / dehydrating tub of the second embodiment has the same configuration as the washing / dehydrating tub 100 of the vertical washing machine of the first embodiment except for the cylindrical body 201, the bottom 202, the annular packing presser 203 and the like.
  • FIG. 1 to FIG. 6 are used.
  • a region S ⁇ b> 1 (shown in FIG. 17) below the positioning portion 210 of the cylindrical body portion 201 is directed downward. It has a conical cylinder shape with gradually increasing diameter.
  • first flange portion 202a is provided over the entire outer peripheral surface of the upper end portion of the bottom portion 202.
  • a second flange portion 202b is provided over the entire circumference at a predetermined interval below the first flange portion 202a on the outer peripheral surface of the bottom portion 202.
  • a third flange portion 202c is provided over the entire circumference at a predetermined interval below the second flange portion 202b on the outer peripheral surface of the bottom portion 202.
  • an annular rib 202d extending downward from the base side of the third flange portion 202c of the bottom portion 202 is provided upright.
  • a positioning portion 210 that protrudes radially inward from the outer peripheral edge of the first flange portion 202a is provided over the entire circumference at the lower end portion of the cylindrical body portion 201, above the first flange portion 202a of the bottom portion 202. It has been.
  • the cross section of the positioning portion 210 is substantially V-shaped.
  • the bottom portion 202 is inserted into the lower end opening of the cylindrical body portion 201 from the lower side, and the upper portion of the first flange portion 202a of the bottom portion 202 abuts on the positioning portion 210 to position the bottom portion 202 with respect to the tubular body portion 201. is doing.
  • an annular packing holding portion H2 is formed between the lower side of the positioning portion 210 of the cylindrical body portion 201 and the outer peripheral surface of the annular rib 202d of the bottom portion 202, and below the third flange portion 202c. Is done.
  • the annular packing 204 is held by the annular packing holding portion H2.
  • the cross-section of the annular packing 204 is circular in a state where no pressure is applied from the periphery.
  • annular packing retainer 203 is inserted from below, and the annular packing retainer 203 is attached to the bottom portion 202 with screws 221. Install. At this time, the annular packing 204 is pressed by the upper end portion 203 b of the annular packing retainer 203 by tightening the screw 221 into the screw hole 222 of the bottom portion 202 from below. Accordingly, the annular packing 204 is elastically deformed, and the annular packing 204 is urged toward the radially outer side with respect to the inner peripheral surface of the cylindrical body portion 201.
  • FIG. 17 is a cross-sectional view of the lower end portion of the cylindrical body 201
  • L1 is a generatrix line of a virtual cylindrical surface extending downward from the positioning part 210 of the cylindrical body 201
  • L2 is this cylindrical body 201. This is a generatrix of the conical cylinder surface of the region S1 below the positioning portion 210.
  • L1 and L2 intersect on the same plane, and the angle formed by L1 and L2 is ⁇ 1 (for example, about 1 deg to 2 deg).
  • the region S1 below the positioning portion 210 of the cylindrical body 201 has a conical cylindrical shape in which the diameter is gradually increased downward, so that a plurality of the entire circumference of the outer peripheral surface is formed.
  • the bottom portion 202 provided with the flange portions 202a, 202b, and 202c can be easily inserted into the cylindrical body portion 201, and workability is improved.
  • the washing / dehydrating tub of the second embodiment has the same effect as the washing / dehydrating tub 100 of the first embodiment.
  • FIG. 18 is an enlarged cross-sectional view (corresponding to region A shown in FIG. 6) of the main part of the washing and dewatering tub of the vertical washing machine as an example of the washing machine according to the second embodiment of the present invention. Shows an enlarged sectional view (corresponding to a region B shown in FIG. 6) of a main part of the washing and dewatering tub of the vertical washing machine.
  • the washing / dehydrating tub of the second embodiment has the same configuration as the washing / dehydrating tub 100 of the vertical washing machine of the first embodiment except for the cylindrical body 301, the bottom 302, the annular packing presser 303 and the like.
  • FIG. 1 to FIG. 6 are used.
  • the washing and dewatering tub according to the third embodiment includes a plurality of flange portions 302 a, 302 b, and 302 c in a region below the positioning portion 310 of the cylindrical body portion 301.
  • the corresponding region S21 (shown in FIG. 20) has a cylindrical shape.
  • a lower region S22 (shown in FIG. 20) of the region below the positioning portion 310 of the cylindrical body 301 has a conical cylindrical shape in which the diameter gradually increases downward. .
  • the 1st flange part 302a is provided over the perimeter of the outer peripheral surface of the upper end part of the bottom part 302.
  • a second flange portion 302b is provided over the entire circumference at a predetermined interval below the first flange portion 302a on the outer peripheral surface of the bottom portion 302.
  • a third flange portion 302c is provided over the entire circumference at a predetermined interval below the second flange portion 302b on the outer peripheral surface of the bottom portion 302.
  • an annular rib 302d extending downward from the base side of the third flange portion 302c of the bottom portion 302 is provided upright.
  • a positioning portion 310 that protrudes radially inward from the outer peripheral edge of the first flange portion 302a is provided over the entire circumference at the lower end portion of the cylindrical body portion 301, above the first flange portion 302a of the bottom portion 302. It has been.
  • the cross section of the positioning portion 310 is substantially V-shaped.
  • the bottom portion 302 is inserted into the lower end opening of the cylindrical body portion 301 from the lower side, and the upper portion of the first flange portion 302a of the bottom portion 302 abuts on the positioning portion 310 to position the bottom portion 302 with respect to the tubular body portion 301. is doing.
  • an annular packing holding portion H3 is formed between the lower side of the positioning portion 310 of the cylindrical body portion 301 and the outer peripheral surface of the annular rib 302d of the bottom portion 302 and below the third flange portion 302c. Is done.
  • the annular packing 304 is held by the annular packing holding portion H3.
  • the cross section of the annular packing 304 has a circular shape with no pressure applied from the periphery.
  • annular packing retainer 303 is inserted from below, and the annular packing retainer 303 is attached to the bottom 302 with a screw 321. Install.
  • the annular packing 304 is pressed by the upper end portion 303 b of the annular packing retainer 303.
  • the annular packing 304 is elastically deformed, and the annular packing 304 is urged toward the radially outer side with respect to the inner peripheral surface of the cylindrical body 301.
  • FIG. 20 shows a cross-sectional view of the lower end portion of the cylindrical body 301
  • L21 is a generatrix of the cylindrical surface of the region S21 extending downward from the positioning part 310 of the cylindrical body 301
  • L22 is this cylindrical body. This is a generatrix of the conical cylinder surface of the region S22 below the region S21 of the part 301.
  • L21 and L22 intersect on the same plane, and the angle formed by L21 and L22 is ⁇ 2 (for example, about 1 deg to 2 deg).
  • the region S21 corresponding to the plurality of flange portions 302a, 302b, and 302c in the region below the positioning portion 310 of the cylindrical body portion 301 is formed into a cylindrical shape, thereby forming a cylinder. Since the bottom 302 having an outer diameter substantially the same as the inner diameter of the cylindrical body 301 can be assembled from below, the cylindrical body 301 and the bottom 302 can be assembled without a gap. As a result, it is possible to create a washing / dehydrating tub with high roundness and high shake accuracy, and it is possible to reduce vibration during dehydration caused by the shaking of the washing / dehydrating tub.
  • the annular packing 304 is inserted into the cylindrical body 301 from the lower side. Since the diameter of the opening for insertion is wider than that of the bottom 302, workability is improved. This makes it possible to improve quality and shorten production time.
  • the washing / dehydrating tub of the third embodiment has the same effect as the washing / dehydrating tub 100 of the first embodiment.
  • the vertical washing machine including the metal cylindrical body portions 101, 201, and 301 including the non-perforated peripheral wall has been described.
  • the present invention may be applied to a washing and dewatering tub provided with a cylindrical body having holes and a washing machine including the washing and dewatering tub.
  • the three flange portions 102a, 102b, 102c are provided over the entire circumference of the outer peripheral surface of the bottom portion 102 and spaced in the vertical direction, but are provided on the outer peripheral surface of the bottom portion.
  • Two flange portions may be provided, and four or more flange portions may be provided.
  • the vertical washing machine including the washing / dehydrating tub has been described.
  • the present invention is not limited to this, and the present invention may be applied to a washing / drying machine having a drying function.
  • the washing and dewatering tank is Metal tubular barrels 101, 201, 301; Synthetic resin which is arranged on the lower end side of the cylindrical body parts 101, 201, 301 and forms annular packing holding parts H1, H2, H3 between the inner peripheral surfaces of the cylindrical body parts 101, 201, 301 Bottoms 102, 202, 302 made of The annular packings 104, 204 held by the annular packing holding portions H1, H2, H3 between the inner peripheral surfaces of the cylindrical body portions 101, 201, 301 and the outer peripheral surfaces of the bottom portions 102, 202, 302.
  • the bottom portions 102, 202, 302 have a plurality of flange portions 102a, 102b, 102c, 202a, 202b, 202c, 302a, 302b, 302c provided at intervals in the vertical direction over the entire circumference of the outer peripheral surface.
  • the annular packings 104, 204, 304 are applied to the lower surface of the lowermost flanges 102c, 202c, 302c of the plurality of flanges 102a, 102b, 102c, 202a, 202b, 202c, 302a, 302b, 302c. Touching, The annular packings 104, 204, 304 are elastically deformed by pressing the annular packings 104, 204, 304 against the upper ends of the annular packing holders 103, 203, 303.
  • the annular packing held by the annular packing holding portions H1, H2, H3 between the inner peripheral surface of the cylindrical body portions 101, 201, 301 and the outer peripheral surface of the bottom portions 102, 202, 302. 104, 204, 304 are pressed upward at the upper ends of the annular packing retainers 103, 203, 303 to be elastically deformed, whereby the annular packings 104, 104, 304 are formed with respect to the inner peripheral surfaces of the cylindrical body portions 101, 201, 301. 204 and 304 urge toward the radially outer side.
  • the inner peripheral surface of the cylindrical body parts 101, 201, 301 can be brought into close contact with the annular packings 104, 204, 304, and the inner peripheral surface of the cylindrical body parts 101, 201, 301 and the annular packing 104 can be adhered. , 204, 304 can be improved.
  • the annular packings 104, 204, 304 are pressed upward at the upper ends of the annular packing retainers 103, 203, 303, the entire circumference of the outer peripheral surface of the bottom portions 102, 202, 302 is spaced apart in the vertical direction.
  • the lowermost flange portions 102c, 202c, 302c are shafts of the annular packings 104, 204, 304.
  • the annular packings 104, 204, and 304 are in close contact with the lower surfaces of the lowermost flange portions 102c, 202c, and 302c. Thereby, the watertightness between the lowermost flange portions 102c, 202c, 302c of the bottom portions 102, 202, 302 and the annular packings 104, 204, 304 can be improved.
  • the annular packings 104, 204, 304 are provided between the inner peripheral surface of the cylindrical body portions 101, 201, 301 and the outer peripheral surface of the bottom portions 102, 202, 302 and on the outer peripheral surfaces of the bottom portions 102, 202, 302.
  • the annular packing holders 103, 203, and 303 are attached to the bottom portions 102, 202, and 302 while being fitted, the annular packings 104, 204, and 304 are pressed against the annular packings 104, 204, and 304 at the upper end.
  • the annular packings 104, 204, and 304 can be easily elastically deformed, and watertightness can be secured with good assemblability.
  • the cost can be reduced and the weight can be reduced.
  • the gap between the stirring blade 20 and the bottom portions 102, 202, 302 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 102, 202, 302. .
  • annular packings 104, 204, and 304 are positioned by the lowermost flange portions 102c, 202c, and 302c, the annular packings 104, 204, and 304 do not protrude upward, and the aesthetic appearance can be maintained. .
  • the bottom of the cylindrical body portions 101, 201, 301 is the most of the plurality of flange portions 102a, 102b, 102c, 202a, 202b, 202c, 302a, 302b, 302c of the bottom portions 102, 202, 302.
  • Positioning portions 110, 210, and 310 are provided that protrude above the upper flange portions 102a, 202a, and 302a and radially inward from the outer peripheral edges of the flange portions 102a, 202a, and 302a.
  • the positioning portions 110, 210, 310 provided at the lower end portions of the cylindrical body portions 101, 201, 301 are the plurality of flange portions 102a, 102b, 102c, 202a of the bottom portions 102, 202, 302. , 202b, 202c, 302a, 302b, 302c, the uppermost flange portions 102a, 202a, 302a are projected above the outer peripheral edges of the flange portions 102a, 202a, 302a and radially inward.
  • the upper side of the uppermost flange portions 102a, 202a, 302a of the bottom portions 102, 202, 302 is the cylindrical body portion 101. , 201, 301 and the bottom portions 102, 202, 302 with respect to the cylindrical body portions 101, 201, 301. Can be positioned.
  • the cylindrical body 201 has a conical cylindrical shape in which a region S1 below the positioning unit 210 is gradually expanded in diameter downward.
  • the plurality of flange portions are formed over the entire circumference of the outer peripheral surface by forming the conical cylinder shape in which the region S1 below the positioning portion 210 of the cylindrical body portion 201 gradually increases in diameter downward. It becomes easy to insert the bottom part provided with the inside of the cylindrical body part 201, and workability is improved.
  • the cylindrical body 301 has a cylindrical region S21 corresponding to the plurality of flange portions 302a, 302b, and 302c in the region below the positioning unit 310, and is lower than the cylindrical region.
  • the side region S22 has a conical cylinder shape whose diameter gradually increases downward.
  • the cylindrical body is formed by forming the region S21 corresponding to the plurality of flange portions 302a, 302b, and 302c in the region below the positioning portion 310 of the cylindrical body 301 into a cylindrical shape. Since the bottom part 302 having an outer diameter substantially the same as the inner diameter of the part 301 can be assembled from below, the cylindrical body part 301 and the bottom part 302 can be assembled without a gap. As a result, it is possible to create a washing / dehydrating tub with high roundness and high shake accuracy, and it is possible to reduce vibration during dehydration caused by the shaking of the washing / dehydrating tub.
  • the bottom portions 102, 202, 302 are annular with the lower surfaces of the lowermost flange portions 102c, 202c, 302c of the plurality of flange portions 102a, 102b, 102c, 202a, 202b, 202c, 302a, 302b, 302c.
  • annular ribs 102 d, 202 d, and 302 d that are erected radially inward and downward with respect to the annular packings 104, 204, and 304 are provided.
  • the bottom portion 102 is formed by standing the annular ribs 102d, 202d, 302d on the bottom portions 102, 202, 302 radially inward and downward with respect to the annular packings 104, 204, 304. 202, 302 while improving the strength of the flanges 102a, 102b, 102c, 202a, 202b, 202c, 302a, 302b, 302c, together with the lower surface of the lowermost flanges 102c, 202c, 302c,
  • the annular packings 104, 204, and 304 can be positioned on the outer peripheral surfaces of the annular ribs 102d, 202d, and 302d.
  • washing machine Any one of the above-described washing and dewatering tubs 100 is provided.
  • the washing machine including the washing and dewatering tub 100 that can improve the water-tightness between the metal cylindrical body portions 101, 201, 301 and the synthetic resin bottom portions 102, 202, 302 with a simple configuration. Can be achieved, and a reduction in water-saving performance can be prevented.

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  • 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)
PCT/JP2017/030100 2017-05-30 2017-08-23 洗濯兼脱水槽および洗濯機 WO2018220870A1 (ja)

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CN201780091402.9A CN110709554B (zh) 2017-05-30 2017-08-23 洗涤兼脱水筒及洗衣机

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Citations (2)

* Cited by examiner, † Cited by third party
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
WO2016189910A1 (ja) * 2015-05-27 2016-12-01 シャープ株式会社 洗濯兼脱水槽および洗濯機

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054408B1 (ko) * 2004-04-19 2011-08-05 엘지전자 주식회사 세탁기
CN106498659B (zh) * 2015-09-07 2020-09-08 青岛海尔洗衣机有限公司 一种洗衣机内桶及加工工艺及洗衣机

Patent Citations (2)

* Cited by examiner, † Cited by third party
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
WO2016189910A1 (ja) * 2015-05-27 2016-12-01 シャープ株式会社 洗濯兼脱水槽および洗濯機

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