WO2018220870A1 - Washing/draining tank and washing machine - Google Patents

Washing/draining tank and washing machine 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
Other languages
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/en
Priority to CN201780091402.9A priority patent/CN110709554B/en
Publication of WO2018220870A1 publication Critical patent/WO2018220870A1/en

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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)

Abstract

A bottom part (102) forming an annular packing holding part (H1) is disposed at the lower-end side of a cylindrical barrel part (101), between the lower-end side and the inner peripheral surface of the cylindrical barrel part (101). An annular packing pusher (103) is attached to the bottom part (102) so as to push an annular packing (104), which is held by the annular packing holding part (H1) between the inner peripheral surface of the cylindrical barrel part (101) and the outer peripheral surface of the bottom part (102), from below using the upper end of the annular packing pusher (103). From among a plurality of flange parts (102a, 102b, 102c) provided along the entire periphery of the outer peripheral surface of the bottom part (102) and with gaps therebetween in the vertical direction, the annular packing (104) is brought into contact with the lower surface of the lowermost flange part (102c), and the upper end of the annular packing pusher (103) pushes the annular packing (104), whereby the annular packing (104) is caused to elastically deform. There is thereby provided a washing/draining tank with which it is possible to improve the watertightness between a metal cylindrical barrel part and a synthetic resin bottom part using a simple structure.

Description

洗濯兼脱水槽および洗濯機Washing and dewatering tank and washing machine 援用記載Supporting statement
　本出願は２０１７年５月３０日に出願された日本出願の特願２０１７－１０７０３７に対して、優先権の利益を主張するものであり、その日本出願に記載された全ての記載内容を援用するものである。 This application claims the benefit of priority over Japanese Patent Application No. 2017-107037 filed on May 30, 2017, and incorporates all the descriptions in the Japanese application. Is.
　この発明は、洗濯兼脱水槽および洗濯機に関する。 This invention relates to a washing and dewatering tank and a washing machine.
　従来、洗濯兼脱水槽としては、特許第３０７８６８４号公報(特許文献１)に開示されているように、ステンレス鋼板製の筒状胴部と、筒状胴部の下端開口周縁部に取り付けられたステンレス鋼板製の底部と備え、洗濯機の水槽内に配置されるものがある。 Conventionally, 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.
　上記底部の上端開口周縁部は内側に逆Ｕ字形状に折り曲げられてハゼ折り部となっている。一方、上記筒状胴部の下端開口周縁部は外側にＵ字形状に折り曲げられてハゼ折り部となっている。この底部のハゼ折り部と筒状胴部のハゼ折り部とをハゼ折りカシメにより接合し、これらのハゼ折り部の間にシール材を充填することにより、筒状胴部の下端開口周縁部と底部の上端開口周縁部との間の水密が図られている。 The peripheral edge of the top opening at the bottom is folded inward in an inverted U shape to form a goby fold. On the other hand, the peripheral edge of the lower end opening of the cylindrical body is bent outwardly into a U-shape to form a goby fold. By joining the goby folding part of the bottom part and the goby folding part of the cylindrical body part by goze folding caulking, and filling the sealing material between these goat folding parts, the lower end opening peripheral part of the cylindrical body part and Watertightness between the bottom edge of the upper end opening at the bottom is achieved.
　また、上記筒状胴部の周壁には貫通孔を設けないことにより、洗い工程時、洗濯兼脱水槽と水槽の間に水が溜まらないようになっている。これにより、上記洗濯兼脱水槽は節水性能を高めることができる。 In addition, by not providing a through hole in the peripheral wall of the cylindrical body part, water does not collect between the washing / dehydrating tank and the water tank during the washing process. Thereby, the said washing and dewatering tank can improve water-saving performance.
特許第３０７８６８４号公報Japanese Patent No. 3078684
　ところで、上記従来の洗濯兼脱水槽は、筒状胴部および底部の両方ともステンレス鋼板で形成しているので、そのステンレス鋼板製の底部の代わりに合成樹脂製の底部を用いれば、製造コストを下げることができる。すなわち、上記従来の洗濯兼脱水槽には、低コスト化が十分に図られていなかったという問題がある。 By the way, 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.
　しかしながら、上記問題を解消するため、ステンレス鋼板製の底部の代わりに合成樹脂製の底部を用いると、次のような問題が新たに起きてしまう。 However, in order to solve the above problem, if a synthetic resin bottom is used instead of a stainless steel steel bottom, the following new problem will occur.
　まず、上記合成樹脂製の底部を用いるには、筒状胴部の下端開口周縁部の内周面と底部の外周面との間の水密を確保するため、その間の全周にわたって環状のパッキンを配置しなければならない。 First, in order to use the above-mentioned synthetic resin bottom part, in order to ensure watertightness between the inner peripheral surface of the lower end opening peripheral part of the cylindrical body part and the outer peripheral surface of the bottom part, an annular packing is provided over the entire circumference between them. Must be placed.
　しかしながら、上記ステンレス鋼板を曲げることによって、筒状胴部を形成するため、筒状胴部の下端開口周縁部の内周面と底部の外周面との間の距離を全周にわたって一定にするのは困難である。このため、上記筒状胴部の下端開口周縁部と環状のパッキンとの間に隙間が生じて筒状胴部と底部との水密性が低下するという問題がある。 However, in order to form the cylindrical body by bending the stainless steel plate, the distance between the inner peripheral surface of the lower end opening peripheral part of the cylindrical body and the outer peripheral surface of the bottom is made constant over the entire periphery. It is difficult. For this reason, there exists a problem that a clearance gap arises between the lower end opening peripheral part of the said cylindrical trunk | drum, and an annular packing, and the watertightness of a cylindrical trunk | drum and a bottom part falls.
　その結果、筒状胴部の周壁には貫通孔を設けない洗濯兼脱水槽であれば、洗い工程時、水を洗濯兼脱水槽内に溜めても、その隙間から洗濯兼脱水槽と水槽の間に水が漏れ出てしまうので、節水性能が低下する。 As a result, if 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.
　そこで、この発明の課題は、簡単な構成で金属製の筒状胴部と合成樹脂製の底部との間の水密性を向上できる洗濯兼脱水槽およびその洗濯兼脱水槽を備えた洗濯機を提供することにある。 Accordingly, 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.
　この発明の一態様に係る洗濯兼脱水槽は、
　金属製の筒状胴部と、
　上記筒状胴部の下端側に配置され、上記筒状胴部の内周面との間に環状のパッキン保持部を形成する合成樹脂製の底部と、
　上記筒状胴部の内周面と上記底部の外周面との間の上記環状のパッキン保持部に保持された環状のパッキンと、
　上記環状のパッキン保持部に保持された上記環状のパッキンを下方から上端で押し付けるように、上記底部に取り付けられた環状のパッキン押さえと
を備え、
　上記底部は、外周面の全周にわたってかつ上下方向に間隔をあけて設けられた複数のフランジ部を有し、
　上記複数のフランジ部のうちの最も下側のフランジ部の下面に上記環状のパッキンが当接していると共に、
　上記環状のパッキン押さえの上端が上記環状のパッキンを押し付けることによって、上記環状のパッキンを弾性変形させていることを特徴とする。 The washing and dewatering tank according to one aspect of the present 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 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.
　また、この発明の一態様に係る洗濯機は、
　上記洗濯兼脱水槽を備えたことを特徴とする。 The washing machine according to one aspect of the present invention is
The washing and dewatering tank is provided.
　この発明によれば、金属製の筒状胴部の内周面と合成樹脂製の底部の外周面との間のパッキン保持部に保持された環状のパッキンを、環状のパッキン押さえの上端で上方に押し付け弾性変形させることによって、簡単な構成で金属製の筒状胴部と合成樹脂製の底部との水密性を向上できる洗濯兼脱水槽およびその洗濯兼脱水槽を備えた洗濯機を実現することができる。 According to this invention, 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.
図１はこの発明の第１実施形態の洗濯機の一例としての縦型洗濯機の外観斜視図である。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. 図２は上記縦型洗濯機の上面図である。FIG. 2 is a top view of the vertical washing machine. 図３は図２のIII－III線から見た縦断面図である。3 is a longitudinal sectional view taken along line III-III in FIG. 図４は図３の要部を拡大した縦断面図である。FIG. 4 is an enlarged longitudinal sectional view of the main part of FIG. 図５は上記洗濯兼脱水槽の裏面図である。FIG. 5 is a back view of the washing and dewatering tank. 図６は図５のVI－VI線から見た縦断面図である。6 is a longitudinal sectional view taken along line VI-VI in FIG. 図７Ａは図６の領域Ａの環状のパッキンを装着していない状態の拡大断面図である。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. 図７Ｂは図６の領域Ａの環状のパッキンを装着した状態の拡大断面図である。FIG. 7B is an enlarged cross-sectional view of a state where the annular packing in the region A of FIG. 6 is attached. 図８Ａは図６の領域Ｂの環状のパッキンを装着していない状態の拡大断面図である。FIG. 8A is an enlarged cross-sectional view of a state where the annular packing in region B of FIG. 6 is not attached. 図８Ｂは図６の領域Ｂの環状のパッキンを装着した状態の拡大断面図である。FIG. 8B is an enlarged cross-sectional view of a state where the annular packing in the region B of FIG. 6 is mounted. 図９は上記洗濯兼脱水槽の分解斜視図である。FIG. 9 is an exploded perspective view of the washing and dewatering tank. 図１０は上記洗濯兼脱水槽の環状のパッキン押さえの斜視図である。FIG. 10 is a perspective view of the annular packing presser of the washing and dewatering tub. 図１１は上記環状のパッキン押さえの上面図である。FIG. 11 is a top view of the annular packing retainer. 図１２は上記環状のパッキン押さえの側面図である。FIG. 12 is a side view of the annular packing retainer. 図１３は図１１のXIII－XIII線から見た縦断面図である。13 is a longitudinal sectional view taken along line XIII-XIII in FIG. 図１４は上記洗濯兼脱水槽の底部を斜め下方から見た斜視図である。FIG. 14 is a perspective view of the bottom portion of the washing and dewatering tub as viewed obliquely from below. 図１５はこの発明の第２実施形態の洗濯機の一例としての縦型洗濯機の洗濯兼脱水槽の要部の拡大断面図である。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. 図１６は上記洗濯兼脱水槽の要部の拡大断面図である。FIG. 16 is an enlarged cross-sectional view of the main part of the washing and dewatering tank. 図１７は上記洗濯兼脱水槽の筒状胴部の下端部の断面図である。FIG. 17 is a cross-sectional view of the lower end of the cylindrical body of the washing and dewatering tub. 図１８はこの発明の第３実施形態の洗濯機の一例としての縦型洗濯機の洗濯兼脱水槽の要部の拡大断面図である。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. 図１９は上記洗濯兼脱水槽の要部の拡大断面図である。FIG. 19 is an enlarged cross-sectional view of the main part of the washing and dewatering tank. 図２０は上記洗濯兼脱水槽の筒状胴部の下端部の断面図である。FIG. 20 is a cross-sectional view of the lower end of the cylindrical body of the washing and dewatering tub.
　以下、この発明の洗濯兼脱水槽および洗濯機を図示の実施の形態により詳細に説明する。 Hereinafter, the washing and dewatering tub and the washing machine of the present invention will be described in detail with reference to the illustrated embodiments.
　〔第１実施形態〕
　図１はこの発明の第１実施形態の洗濯機の一例としての縦型洗濯機を前側の斜め上方から見た外観図を示し、図２は上記縦型洗濯機の上面図を示している。 [First Embodiment]
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, and FIG. 2 is a top view of the vertical washing machine.
　この第１実施形態の縦型洗濯機は、図１,図２に示すように、金属または合成樹脂製の本体ケーシング１と、水槽２(図３に示す)および洗濯兼脱水槽１００(図３に示す)の開口を開閉する上蓋４と、本体ケーシング１の上面に設けられた操作表示部５とを備える。ユーザは操作表示部５を操作して運転動作を選択する。また、操作表示部５は運転状態を文字および数字などで表示する。 As shown in FIGS. 1 and 2, 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.
　また、図３は図２のIII－III線から見た縦断面図を示している。 FIG. 3 is a longitudinal sectional view taken along line III-III in FIG.
　この縦型洗濯機は、図３に示すように、本体ケーシング１は、四角筒状に成形され、上面に上面開口部を有する一方、下面に下面開口部を有している。本体ケーシング１の上面開口部には、操作表示部５等が設けられた合成樹脂製の上面板１１が固定されている。本体ケーシング１の下面開口部には、合成樹脂製のベース１２が固定されている。 In this vertical washing machine, as shown in FIG. 3, 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.
　上記縦型洗濯機内に洗濯物を投入するための洗濯物投入口１ａが上面板１１に設けられている。この洗濯物投入口１ａを開閉する上蓋４は、縦型洗濯機の奧側(後側)で上面板１１に回動可能に支持されている。この上蓋４を上下に回動させることにより、洗濯物投入口１ａが開閉される。 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.
　上記本体ケーシング１内には水槽２が配置され、洗濯兼脱水槽１００が水槽２内に配置されている。すなわち、本体ケーシング１内には、洗濯兼脱水槽１００と、その洗濯兼脱水槽１００を収納する水槽２を収容している。この洗濯兼脱水槽１００内には、洗濯物を洗うための水、または、洗濯物を濯ぐための水が溜まる。水槽２および洗濯兼脱水槽１００は、それぞれ、上側が開口した有底筒状になっており、中心軸が鉛直方向に平行になっている。また、水槽２の中心軸は洗濯兼脱水槽１００の中心軸と一致する。 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.
　上記洗濯兼脱水槽１００の上側開口部の縁には環状のバランサー４０を装着している。この環状のバランサー４０は、洗濯物の脱水のために洗濯兼脱水槽１００を高速回転させたときに振動を抑制する働きをする。また、洗濯兼脱水槽１００内の底面には、合成樹脂製の撹拌翼(パルセータ)２０を回転可能に配置している。 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. Further, a synthetic resin stirring blade (pulsator) 20 is rotatably disposed on the bottom surface in the washing and dewatering tub 100.
　上記水槽２の下側には、洗濯兼脱水槽１００および撹拌翼２０を駆動する駆動ユニットを構成するクラッチ・ブレーキ機構５０および駆動モータ(図示せず)が設置されている。このクラッチ・ブレーキ機構５０の回転軸５１の先端には撹拌翼２０の中央部が取り付けられ、回転軸５１において先端よりも下側の箇所には水槽２の底部が取り付けられている。 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.
　また、上記縦型洗濯機は、洗濯兼脱水槽１００内に給水するための給水部１０を備えている。 The vertical washing machine includes a water supply unit 10 for supplying water into the washing / dehydrating tub 100.
　図４は上記洗濯兼脱水槽１００の要部を拡大した縦断面図を示している。図４では、図３と同一の構成部には同一参照番号を付している。 FIG. 4 shows an enlarged vertical cross-sectional view of the main part of the washing / dehydrating tank 100. In FIG. 4, the same components as those in FIG. 3 are denoted by the same reference numerals.
　図４に示すように、洗濯兼脱水槽１００は、金属(例えばステンレス鋼)製の筒状胴部１０１と、筒状胴部１０１の下端側に配置された合成樹脂(例えばプラスチック)製の底部１０２とを備えている。この筒状胴部１０１は、洗濯時水位より上方に脱水用水抜き孔１０１ｄ(図９に示す)を有し、上側に近づくにつれて径が大きくなる周壁からなる(図６参照)。また、底部１０２は、撹拌翼２０を収容する凹部が形成されたカップ形状をしている。 As shown in FIG. 4, 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.
　上記筒状胴部１０１の内周面には、上下方向に延在する複数の排水用溝(図示せず)が設けられている。脱水運転時に洗濯兼脱水槽１００が高速回転したとき、洗濯兼脱水槽１００内の水が遠心力を受けて洗濯兼脱水槽１００の内周面に沿って上昇する。このとき、洗濯兼脱水槽１００の内周面に沿って上昇する水は、排水用溝によって上部に設けられた隙間(図示せず)に案内されて、その隙間および脱水用水抜き孔１０１ｄから水槽２と洗濯兼脱水槽１００の間に出るようになっている。 A plurality of drainage grooves (not shown) extending in the vertical direction are provided on the inner peripheral surface of the cylindrical body 101. When 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. At this time, 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.
　上記筒状胴部１０１の周壁は、洗濯兼脱水槽１００の中心軸に対して傾斜するコニカル形状の無孔壁である。筒状胴部１０１は、まず、例えばステンレス鋼からなる薄板(板厚０.５～０.６ｍｍ)を扇形状に裁断した後、ロール成形することにより上方に向かって拡径するコニカル形状の胴板材とし、ロール成形した継目部分をハゼ折りカシメによって接合することにより筒状に形成されている。 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.
　図５は上記洗濯兼脱水槽１００の裏面図を示している。図５では、図３,図４と同一の構成部には同一参照番号を付している。 FIG. 5 shows a back view of the washing / dehydrating tub 100. In FIG. 5, the same components as those in FIGS. 3 and 4 are denoted by the same reference numerals.
　また、図６は図５のVI－VI線から見た縦断面図を示している。図６に示す領域Ａ(点線の円部分)は、底部１０２に環状のパッキン押さえ１０３(図７Ａに示す)をネジで固定する部分を示し、図６に示す領域Ｂ(点線の円部分)は、底部１０２に環状のパッキン押さえ１０３(図８Ａに示す)を介して筒状胴部１０１をネジで固定する部分を示している。 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. The part which fixes the cylindrical trunk | drum 101 with the screw | thread via the annular packing presser 103 (shown in FIG. 8A) to the bottom part 102 is shown.
　図７Ａは図６の領域Ａの拡大断面図(環状のパッキン１０４なし)を示しており、図７Ｂは図６の領域Ａの環状のパッキン１０４を装着した状態の拡大断面図を示している。図７Ａ,図７Ｂの環状のパッキン押さえ１０３において、１０３ａは外周壁部、１０３ｂは上端部、１０３ｃは環状底部、１０３ｄは内周壁部である(図１０参照)。 7A shows an enlarged sectional view of region A in FIG. 6 (without the annular packing 104), and FIG. 7B shows an enlarged sectional view of the state in which the annular packing 104 of region A in FIG. 6 is mounted. 7A and 7B, 103a is an outer peripheral wall portion, 103b is an upper end portion, 103c is an annular bottom portion, and 103d is an inner peripheral wall portion (see FIG. 10).
　図７Ａ,図７Ｂに示すように、底部１０２の上端部の外周面の全周にわたって第１フランジ部１０２ａを設けている。また、底部１０２の外周面の第１フランジ部１０２ａよりも下側に所定の間隔をあけて全周にわたって第２フランジ部１０２ｂを設けている。また、底部１０２の外周面の第２フランジ部１０２ｂよりも下側に所定の間隔をあけて全周にわたって第３フランジ部１０２ｃを設けている。また、底部１０２の第３フランジ部１０２ｃの根元側から下方に向かって延びる環状のリブ１０２ｄを立設している(図１４参照)。 7A and 7B, 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. Further, 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. Further, 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).
　また、筒状胴部１０１の下端部には、底部１０２の第１フランジ部１０２ａよりも上側でかつ第１フランジ部１０２ａの外周縁よりも径方向内側に突出する位置決め部１１０が全周にわたって設けられている。この位置決め部１１０の断面は、略Ｖ字形状をしている。 In addition, 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.
　筒状胴部１０１の下端開口に、下側から底部１０２を挿入し、底部１０２の第１フランジ部１０２ａの上部が位置決め部１１０に当接して、筒状胴部１０１に対して底部１０２を位置決めしている。このとき、筒状胴部１０１の位置決め部１１０よりも下側と底部１０２の環状のリブ１０２ｄの外周面との間、かつ、第３フランジ部１０２ｃの下側に環状のパッキン保持部Ｈ１が形成される。この環状のパッキン保持部Ｈ１に環状のパッキン１０４が保持される。この環状のパッキン１０４の断面は円形状(周囲から圧力がかかっていない状態)である。なお、環状のパッキン１０４の断面形状は、円形状に限らず、筒状胴部や底部の構成などに応じて適宜設定すればよい。 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. At this time, 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.
　そして、筒状胴部１０１の内周面と底部１０２の環状のリブ１０２ｄの外周面との間に、環状のパッキン押さえ１０３を下方から挿入し、環状のパッキン押さえ１０３を底部１０２にネジ１２１により取り付ける。このとき、ネジ１２１を底部１０２のネジ穴１２２に下側から締め付けることにより、環状のパッキン押さえ１０３の上端部１０３ｂで環状のパッキン１０４を押し付ける。これによって、環状のパッキン１０４を弾性変形させて、筒状胴部１０１の内周面に対して環状のパッキン１０４が径方向外側に向かって付勢する。環状のパッキン押さえ１０３の上端部１０３ｂは、ほぼ平坦な形状をしており、内周側および外周側の全周にわたって面取りされている。 Then, between the inner peripheral surface of the cylindrical body 101 and the outer peripheral surface of the annular rib 102d of the bottom 102, an annular packing retainer 103 is inserted from below, and the annular packing retainer 103 is attached to the bottom 102 with a screw 121. Install. At this time, 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. Thereby, the annular packing 104 is elastically deformed, and the annular packing 104 is urged toward the outer side in the radial direction with respect to the inner peripheral surface of the cylindrical body 101. 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.
　なお、このネジ１２１による締め付け箇所は、環状のパッキン押さえ１０３に周方向かつ等間隔に複数設けられており、環状のパッキン押さえ１０３の上端で環状のパッキン１０４を均等に押し付けている。 Note that 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.
　このとき、さらに底部１０２の第３フランジ部１０２ｃの下面に環状のパッキン１０４が押し付けられる。したがって、筒状胴部１０１と底部１０２との間を確実にシールすることができる。 At this time, 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.
　このように、環状のパッキン押さえ１０３を底部１０２に取り付けるネジ１２１を締め付けると同時に、環状のパッキン押さえ１０３の上端で環状のパッキン１０４を押し付けることによって、環状のパッキン１０４を弾性変形させて、筒状胴部１０１の内周面に対して環状のパッキン１０４が径方向外側に向かって付勢するので、組立性が向上する。 In this way, 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.
　一方、図８Ａは図６の領域Ｂの拡大断面図(環状のパッキン１０４なし)を示しており、図８Ｂは図６の領域Ｂの環状のパッキン１０４を装着した状態の拡大断面図を示している。図８Ａ,図８Ｂにおいて、図７Ａと同一の構成部には同一参照番号を付している。 On the other hand, FIG. 8A shows an enlarged sectional view of the region B in FIG. 6 (without the annular packing 104), and 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.
　図８Ａ,図８Ｂに示すように、底部１０２は、筒状胴部１０１の下端側に環状のパッキン押さえ１０３を介してネジ１２３により取り付けられている。このとき、ネジ１２３を底部１０２のネジ穴１２４に筒状胴部１０１の外周面側から締め付けることにより、筒状胴部１０１の下端側の環状のパッキン１０４近傍に底部１０２の固定部分を設けることができ、環状のパッキン押さえ１０３を筒状胴部１０１と底部１０２との固定に兼用できる。なお、このネジ１２３による締め付け箇所は、筒状胴部１０１の下端側に周方向かつ等間隔に複数設けられている。 As shown in FIGS. 8A and 8B, 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. At this time, 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.
　上記構成の洗濯兼脱水槽１００では、底部１０２の外周面の全周にわたってかつ上下方向に間隔をあけて設けられた複数のフランジ部１０２ａ,１０２ｂ,１０２ｃのうち、上側のフランジ部１０２ａは筒状胴部１０１の位置決め部１１０に対する位置決めに用いられる。また、複数のフランジ部１０２ａ,１０２ｂ,１０２ｃのうち、下側のフランジ部１０２ｃは環状のパッキン１０４の位置決めに用いられる。さらに、中間のフランジ部１０２ｂは底部１０２の強度を補強するのに用いられる。 In the washing and dewatering tub 100 configured as described above, 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. Of the plurality of flange portions 102 a, 102 b, 102 c, the lower flange portion 102 c is used for positioning the annular packing 104. Further, the intermediate flange portion 102 b is used to reinforce the strength of the bottom portion 102.
　また、底部１０２の外周面に複数のフランジ部１０２ａ,１０２ｂ,１０２ｃを上下方向に間隔をあけて設けて、環状のパッキン１０４を位置決めするフランジ部１０２ｃを下方に配置することで、環状のパッキン１０４の位置を低くすることが可能になる。これにより、環状のパッキン押さえ１０３の上下方向の寸法を短くでき、環状のパッキン押さえ１０３の挿入が容易になると共に、環状のパッキン１０４を強くかつ均一に押さえ付けることができ、シール性能が向上する。 In addition, 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. .
　図９は上記洗濯兼脱水槽１００の分解斜視図を示している。図９に示すように、洗濯兼脱水槽１００は、筒状胴部１０１の下端内周に底部１０２が取り付けられる。次に、筒状胴部１０１の内周面と底部１０２の外周面との間の環状のパッキン保持部Ｈ１(図７Ａ,図８Ａに示す)に環状のパッキン１０４を挿入した後、筒状胴部１０１の内周面と底部１０２の外周面との間に下方から環状のパッキン押さえ１０３を挿入する。 FIG. 9 shows an exploded perspective view of the washing / dehydrating tank 100. As shown in FIG. 9, the washing and dewatering tub 100 has a bottom 102 attached to the inner periphery of the lower end of the cylindrical body 101. Next, after 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.
　次に、ネジ１２１(図７Ａに示す)を下方から締め付けることにより環状のパッキン押さえ１０３を底部１０２に取り付けた後、ネジ１２３(図８Ａに示す)を径方向外側から締め付けることにより環状のパッキン押さえ１０３を介して筒状胴部１０１と底部１０２を固定する。 Next, an 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.
　図１０は上記洗濯兼脱水槽１００の環状のパッキン押さえ１０３の斜視図を示し、図１１は上記環状のパッキン押さえ１０３の上面図を示している。この環状のパッキン押さえ１０３は、図１０,図１１に示すように、短円筒形の外周壁部１０３ａと、その外周壁部１０３ａの上端に設けられた上端部１０３ｂと、外周壁部１０３ａの下端側の内周面の全周にわたって設けられた環状底部１０３ｃと、環状底部１０３ｃの内周側に全周にわたって設けられた短円筒形の内周壁部１０３ｄと、外周壁部１０３ａの内周面と内周壁部１０３ｄの外周面との間を連結する複数のリブ１０３ｅとを有する。内周壁部１０３ｄの上端は、外周壁部１０３ａの上端に設けられた上端部１０３ｂよりも低い。 10 shows a perspective view of the annular packing retainer 103 of the washing and dewatering tub 100, and FIG. 11 shows a top view of the annular packing retainer 103. As shown in FIG. As shown in FIGS. 10 and 11, 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.
　上記外周壁部１０３ａの周方向に間隔をあけて複数の第１ネジ穴部１０３ｆを設けている。この第１ネジ穴部１０３ｆは、図８Ａに示すネジ穴１２４を有する。また、環状底部１０３ｃには、周方向に間隔をあけて複数の第２ネジ穴部１０３ｇを設けている。この第２ネジ穴部１０３ｇは、図７Ａに示すネジ穴１２２を有する。 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.
　図１２は上記環状のパッキン押さえ１０３の側面図を示し、図１３は図１１のXIII－XIII線から見た縦断面図である。を示している。図１２,図１３において、図１１と同一の構成部には同一参照番号を付している。 FIG. 12 is a side view of the annular packing retainer 103, and 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.
　また、図１４は上記洗濯兼脱水槽１００の底部１０２を斜め下方から見た斜視図を示している。図１４において、図７Ａ,図８Ａと同一の構成部には同一参照番号を付している。 FIG. 14 is a perspective view of the bottom 102 of the washing and dewatering tub 100 as viewed obliquely from below. In FIG. 14, the same components as those in FIGS. 7A and 8A are denoted by the same reference numerals.
　図１４に示すように、底部１０２の上端部の外周面の全周にわたって第１フランジ部１０２ａと第２フランジ部１０２ｂおよび第３フランジ部１０２ｃを上下方向に間隔をあけて設けている。また、底部１０２の第３フランジ部１０２ｃの根元側から下方に向かって延びる環状のリブ１０２ｄを立設している。 As shown in FIG. 14, 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.
　上記構成の洗濯兼脱水槽１００によれば、筒状胴部１０１の内周面と底部１０２の外周面との間の環状のパッキン保持部Ｈ１に保持された環状のパッキン１０４を、環状のパッキン押さえ１０３の上端で上方に押し付けて弾性変形させることによって、筒状胴部１０１の内周面に対して環状のパッキン１０４が径方向外側に向かって付勢する。これにより、筒状胴部１０１の内周面を環状のパッキン１０４に密着させることができ、筒状胴部１０１の内周面と環状のパッキン１０４との間の水密性を向上できる。 According to the washing and dewatering tub 100 having the above-described configuration, 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. By pressing upward at the upper end of the presser 103 to cause elastic deformation, the annular packing 104 is urged toward the radially outer side with respect to the inner peripheral surface of the cylindrical body 101. Thereby, the inner peripheral surface of the cylindrical trunk | drum 101 can be closely_contact | adhered to the annular packing 104, and the watertightness between the inner peripheral surface of the cylindrical trunk | drum 101 and the annular packing 104 can be improved.
　また、環状のパッキン押さえ１０３の上端で環状のパッキン１０４を上方に押し付けるときに、底部１０２の外周面の全周にわたってかつ上下方向に間隔をあけて設けられた複数のフランジ部１０２ａ,１０２ｂ,１０２ｃのうちの最も下側のフランジ部１０２ｃは、環状のパッキン１０４の軸方向の上方への移動を規制するので、第３フランジ部１０２ｃの下面に環状のパッキン１０４が密着する。これにより、底部１０２の最も下側のフランジ部１０２ｃと環状のパッキン１０４との間の水密性を向上できる。 Further, 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.
　このように、筒状胴部１０１の内周面と底部１０２の外周面との間かつ底部１０２の外周面に環状のパッキン１０４が外嵌された状態で、環状のパッキン押さえ１０３を底部１０２に取り付けるときに、環状のパッキン１０４を上端で環状のパッキン１０４に押し付けることで、環状のパッキン１０４を容易に弾性変形させることができ、組立性よく水密性を確保できる。 As described above, 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. When attaching, by pressing the annular packing 104 against the annular packing 104 at the upper end, the annular packing 104 can be easily elastically deformed, and watertightness can be secured with good assemblability.
　したがって、上記洗濯兼脱水槽１００では、簡単な構成で金属製の筒状胴部１０１と合成樹脂製の底部１０２との間の水密性を向上できる。 Therefore, in the washing and dewatering tub 100, the watertightness between the metal cylindrical body 101 and the synthetic resin bottom 102 can be improved with a simple configuration.
　なお、合成樹脂製の底部１０２を用いることによって、コストを低減できると共に、軽量化を図ることができる。さらに、撹拌翼(パルセータ)２０と底部１０２との隙間にコインなどの異物の混入を防止できるように、撹拌翼２０と底部１０２との隙間を容易に最適化できる。 In addition, by using the synthetic resin bottom 102, the cost can be reduced and the weight can be reduced. Furthermore, 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.
　上記洗濯兼脱水槽１００の筒状胴部１０１と底部１０２のネジ穴部のための側面方向(径の外側)へのスライド金型構造が必要になるが、本構造にすれば第１フランジ部１０２ａ下面と第３フランジ部１０２ｃの上面の間で十分な距離を確保できるので、強度に問題のないスライド金型構造を作ることができる。そのため、第１フランジ部１０２ａと第３フランジ部１０２ｃは上下方向の金型にて作成可能なため、正確な径で、金型の継ぎ目段差のないものを作ることができる。そうすると、真円度が高く振動の少ない品質の良い洗濯兼脱水槽１００や、段差なくパッキン１０４とのシール性が高い節水性能の高い洗濯兼脱水槽１００を作ることができる。 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.
　これに対して、もし底部にフランジ部が１個しかないものでは、ネジ穴部用のスライド金型構造が強度、構造上問題ない状態ではできず、フランジ部の周囲は真円度が低下すると共にシール部に段差ができてシール性が低下し、品質が低下するという問題が発生する。 On the other hand, if there is only one flange portion at the bottom, the slide mold structure for the screw hole cannot be in a state where there is no problem in strength and structure, and the roundness around the flange portion decreases. At the same time, there arises a problem that a step is formed in the seal portion, the sealing performance is lowered, and the quality is lowered.
　また、最も下側のフランジ部１０２ｃによって環状のパッキン１０４が位置決めされるので、環状のパッキン１０４が上方にはみ出すことがなくなり、美観を保つことができる。 Further, since the 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.
　また、上記筒状胴部１０１の下端部に設けられた位置決め部１１０が、底部１０２の複数のフランジ部１０２ａ,１０２ｂ,１０２ｃのうちの最も上側のフランジ部１０２ａよりも上側でかつ該フランジ部１０２ａの外周縁よりも径方向内側に突出していることにより、筒状胴部１０１の下端側に底部１０２を配置するとき、底部１０２の最も上側のフランジ部１０２ａの上側が筒状胴部１０１の位置決め部１１０に当接して、筒状胴部１０１に対して底部１０２を位置決めすることができる。 Further, 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. When the bottom portion 102 is disposed on the lower end side of the cylindrical body portion 101, 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.
　また、上記筒状胴部１０１の位置決め部１１０よりも下側の領域を円筒形状にすることによって、筒状胴部１０１の内径とほぼ同じ外径の底部１０２を下方から組み付け可能となるので、隙間なく筒状胴部１０１と底部１０２とを組み付けることができる。これにより、真円度、振れの精度の高い洗濯兼脱水槽１００を作成することが可能になり、洗濯兼脱水槽１００の振れによって発生する脱水時の振動を小さく抑えることが可能となる。 In addition, by making the region below the positioning portion 110 of the cylindrical body 101 cylindrical, 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. As a result, it is possible to create the washing / dehydrating tub 100 with high roundness and high shake accuracy, and it is possible to suppress vibration during dehydration that occurs due to the shaking of the washing / dehydrating tub 100.
　また、上記環状のパッキン押さえ１０３に底部１０２の材料よりも剛性の高い材料を用いることによって、底部１０２の強度を向上できる。 Moreover, 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.
　また、簡単な構成で金属製の筒状胴部１０１と合成樹脂製の底部１０２との水密性を向上できる洗濯兼脱水槽１００を備えた縦型洗濯機を実現することができ、節水性能の低下を防ぐことができる。 Further, it is possible to realize 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.
　なお、上記第１実施形態では、上端部１０３ｂの形状がほぼ平坦な環状のパッキン押さえ１０３を用いたが、環状のパッキン押さえの上端部の形状はこれに限らず、環状のパッキン１０４を弾性変形させる形状であればよい。 In the first embodiment, the annular packing retainer 103 having a substantially flat upper end 103b is used. However, 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.
　〔第２実施形態〕
　図１５はこの発明の第２実施形態の洗濯機の一例としての縦型洗濯機の洗濯兼脱水槽の要部の拡大断面図(図６に示す領域Ａに相当)を示しており、図１６は上記縦型洗濯機の洗濯兼脱水槽の要部の拡大断面図(図６に示す領域Ｂに相当)を示している。この第２実施形態の洗濯兼脱水槽は、筒状胴部２０１と底部２０２および環状のパッキン押さえ２０３などを除いて第１実施形態の縦型洗濯機の洗濯兼脱水槽１００と同一の構成をしており、図１～図６を援用する。 [Second Embodiment]
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.
　この第２実施形態の洗濯兼脱水槽は、図１５,図１６に示すように、筒状胴部２０１の位置決め部２１０よりも下側の領域Ｓ１(図１７に示す)を、下方に向かって徐々に拡径した円錐筒形状としている。 In the washing and dewatering tub according to the second embodiment, as shown in FIGS. 15 and 16, 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.
　また、底部２０２の上端部の外周面の全周にわたって第１フランジ部２０２ａを設けている。また、底部２０２の外周面の第１フランジ部２０２ａよりも下側に所定の間隔をあけて全周にわたって第２フランジ部２０２ｂを設けている。また、底部２０２の外周面の第２フランジ部２０２ｂよりも下側に所定の間隔をあけて全周にわたって第３フランジ部２０２ｃを設けている。また、底部２０２の第３フランジ部２０２ｃの根元側から下方に向かって延びる環状のリブ２０２ｄを立設している。 Also, the first flange portion 202a is provided over the entire outer peripheral surface of the upper end portion of the bottom portion 202. In addition, 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. Further, 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. Further, an annular rib 202d extending downward from the base side of the third flange portion 202c of the bottom portion 202 is provided upright.
　また、筒状胴部２０１の下端部には、底部２０２の第１フランジ部２０２ａよりも上側でかつ第１フランジ部２０２ａの外周縁よりも径方向内側に突出する位置決め部２１０が全周にわたって設けられている。この位置決め部２１０の断面は、略Ｖ字形状をしている。 In addition, 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.
　筒状胴部２０１の下端開口に、下側から底部２０２を挿入し、底部２０２の第１フランジ部２０２ａの上部が位置決め部２１０に当接して、筒状胴部２０１に対して底部２０２を位置決めしている。このとき、筒状胴部２０１の位置決め部２１０よりも下側と底部２０２の環状のリブ２０２ｄの外周面との間、かつ、第３フランジ部２０２ｃの下側に環状のパッキン保持部Ｈ２が形成される。この環状のパッキン保持部Ｈ２に環状のパッキン２０４が保持される。この環状のパッキン２０４の断面は、周囲から圧力がかかっていない状態で円形状である。 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. At this time, 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.
　そして、筒状胴部２０１の内周面と底部２０２の環状のリブ２０２ｄの外周面との間に、環状のパッキン押さえ２０３を下方から挿入し、環状のパッキン押さえ２０３を底部２０２にネジ２２１により取り付ける。このとき、ネジ２２１を底部２０２のネジ穴２２２に下側から締め付けることにより、環状のパッキン押さえ２０３の上端部２０３ｂで環状のパッキン２０４を押し付ける。これによって、環状のパッキン２０４を弾性変形させて、筒状胴部２０１の内周面に対して環状のパッキン２０４が径方向外側に向かって付勢する。 Then, between the inner peripheral surface of the cylindrical body 201 and the outer peripheral surface of the annular rib 202d of the bottom portion 202, an 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.
　図１７は筒状胴部２０１の下端部の断面図を示しており、Ｌ１は筒状胴部２０１の位置決め部２１０から下方に延びる仮想円筒面の母線であり、Ｌ２はこの筒状胴部２０１の位置決め部２１０よりも下側の領域Ｓ１の円錐筒面の母線である。図１７に示すように、Ｌ１とＬ２は同一平面上で交差しており、Ｌ１とＬ２とのなす角度はθ１(例えば１ｄｅｇ～２ｄｅｇ程度)である。 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, and L2 is this cylindrical body 201. This is a generatrix of the conical cylinder surface of the region S1 below the positioning portion 210. As shown in FIG. 17, L1 and L2 intersect on the same plane, and the angle formed by L1 and L2 is θ1 (for example, about 1 deg to 2 deg).
　上記第２実施形態によれば、筒状胴部２０１の位置決め部２１０よりも下側の領域Ｓ１が下方に向かって徐々に拡径した円錐筒形状とすることによって、外周面の全周にわたって複数のフランジ部２０２ａ,２０２ｂ,２０２ｃが設けられた底部２０２を、筒状胴部２０１内に挿入しやすくなり、作業性が向上する。 According to the second embodiment, 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.
　上記第２実施形態の洗濯兼脱水槽では、第１実施形態の洗濯兼脱水槽１００と同様の効果を有する。 The washing / dehydrating tub of the second embodiment has the same effect as the washing / dehydrating tub 100 of the first embodiment.
　〔第３実施形態〕
　図１８はこの発明の第２実施形態の洗濯機の一例としての縦型洗濯機の洗濯兼脱水槽の要部の拡大断面図(図６に示す領域Ａに相当)を示しており、図１９は上記縦型洗濯機の洗濯兼脱水槽の要部の拡大断面図(図６に示す領域Ｂに相当)を示している。この第２実施形態の洗濯兼脱水槽は、筒状胴部３０１と底部３０２および環状のパッキン押さえ３０３などを除いて第１実施形態の縦型洗濯機の洗濯兼脱水槽１００と同一の構成をしており、図１～図６を援用する。 [Third 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.
　この第３実施形態の洗濯兼脱水槽は、図１８,図１９に示すように、筒状胴部３０１の位置決め部３１０よりも下側の領域のうちの複数のフランジ部３０２ａ,３０２ｂ,３０２ｃに対応する領域Ｓ２１(図２０に示す)が円筒形状である。また、筒状胴部３０１の位置決め部３１０よりも下側の領域のうちの領域Ｓ２１(図２０に示す)の下側の領域Ｓ２２が、下方に向かって徐々に拡径した円錐筒形状である。 As shown in FIGS. 18 and 19, 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. In addition, 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. .
　また、底部３０２の上端部の外周面の全周にわたって第１フランジ部３０２ａを設けている。また、底部３０２の外周面の第１フランジ部３０２ａよりも下側に所定の間隔をあけて全周にわたって第２フランジ部３０２ｂを設けている。また、底部３０２の外周面の第２フランジ部３０２ｂよりも下側に所定の間隔をあけて全周にわたって第３フランジ部３０２ｃを設けている。また、底部３０２の第３フランジ部３０２ｃの根元側から下方に向かって延びる環状のリブ３０２ｄを立設している。 Moreover, 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. As shown in FIG. Further, 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. Further, 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. Further, an annular rib 302d extending downward from the base side of the third flange portion 302c of the bottom portion 302 is provided upright.
　また、筒状胴部３０１の下端部には、底部３０２の第１フランジ部３０２ａよりも上側でかつ第１フランジ部３０２ａの外周縁よりも径方向内側に突出する位置決め部３１０が全周にわたって設けられている。この位置決め部３１０の断面は、略Ｖ字形状をしている。 In addition, 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.
　筒状胴部３０１の下端開口に、下側から底部３０２を挿入し、底部３０２の第１フランジ部３０２ａの上部が位置決め部３１０に当接して、筒状胴部３０１に対して底部３０２を位置決めしている。このとき、筒状胴部３０１の位置決め部３１０よりも下側と底部３０２の環状のリブ３０２ｄの外周面との間、かつ、第３フランジ部３０２ｃの下側に環状のパッキン保持部Ｈ３が形成される。この環状のパッキン保持部Ｈ３に環状のパッキン３０４が保持される。この環状のパッキン３０４の断面は、周囲から圧力がかかっていない状態で円形状である。 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. At this time, 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.
　そして、筒状胴部３０１の内周面と底部３０２の環状のリブ３０２ｄの外周面との間に、環状のパッキン押さえ３０３を下方から挿入し、環状のパッキン押さえ３０３を底部３０２にネジ３２１により取り付ける。このとき、ネジ３２１を底部３０２のネジ穴３２２に下側から締め付けることにより、環状のパッキン押さえ３０３の上端部３０３ｂで環状のパッキン３０４を押し付ける。これによって、環状のパッキン３０４を弾性変形させて、筒状胴部３０１の内周面に対して環状のパッキン３０４が径方向外側に向かって付勢する。 Then, between the inner peripheral surface of the cylindrical body 301 and the outer peripheral surface of the annular rib 302d of the bottom 302, an 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. At this time, by tightening the screw 321 into the screw hole 322 of the bottom portion 302 from below, the annular packing 304 is pressed by the upper end portion 303 b of the annular packing retainer 303. Thereby, 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.
　図２０は筒状胴部３０１の下端部の断面図を示しており、Ｌ２１は筒状胴部３０１の位置決め部３１０から下方に延びる領域Ｓ２１の円筒面の母線であり、Ｌ２２はこの筒状胴部３０１の領域Ｓ２１の下側の領域Ｓ２２の円錐筒面の母線である。図２０に示すように、Ｌ２１とＬ２２は同一平面上で交差しており、Ｌ２１とＬ２２とのなす角度はθ２(例えば１ｄｅｇ～２ｄｅｇ程度)である。 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, and 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. As shown in FIG. 20, L21 and L22 intersect on the same plane, and the angle formed by L21 and L22 is θ2 (for example, about 1 deg to 2 deg).
　上記第３実施形態によれば、筒状胴部３０１の位置決め部３１０よりも下側の領域のうち、複数のフランジ部３０２ａ,３０２ｂ,３０２ｃに対応する領域Ｓ２１を円筒形状にすることによって、筒状胴部３０１の内径とほぼ同じ外径の底部３０２を下方から組み付け可能となるので、隙間なく筒状胴部３０１と底部３０２とを組み付けることができる。これにより、真円度、振れの精度の高い洗濯兼脱水槽を作成することが可能になり、洗濯兼脱水槽の振れによって発生する脱水時の振動を小さく抑えることが可能となる。 According to the third embodiment, 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.
　また、筒状胴部３０１の領域Ｓ２１よりも下側の領域Ｓ２２を下方に向かって徐々に拡径した円錐筒形状にすることによって、環状のパッキン３０４を筒状胴部３０１内に下側から挿入するための開口の径が底部３０２よりも広くなっているので、作業性が向上する。これにより、品質の向上、生産の時間短縮が可能となる。 In addition, by forming the region S22 below the region S21 of the cylindrical body 301 into a conical cylinder shape that gradually increases in diameter downward, 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.
　上記第３実施形態の洗濯兼脱水槽では、第１実施形態の洗濯兼脱水槽１００と同様の効果を有する。 The washing / dehydrating tub of the third embodiment has the same effect as the washing / dehydrating tub 100 of the first embodiment.
　なお、上記第１～第３実施形態では、無孔周壁からなる金属製の筒状胴部１０１,２０１,３０１を備えた縦型洗濯機について説明したが、これに限らず、周壁に複数の孔を有する筒状胴部を備えた洗濯兼脱水槽およびその洗濯兼脱水槽を備えた洗濯機にこの発明を適用してもよい。 In the first to third embodiments described above, 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.
　また、上記第１～第３実施形態では、底部１０２の外周面の全周にわたってかつ上下方向に間隔をあけて３つのフランジ部１０２ａ,１０２ｂ,１０２ｃを設けたが、底部の外周面に設けられるフランジ部は２つでもよく、４以上のフランジ部を設けてもよい。 In the first to third embodiments, 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.
　また、上記第１～第３実施形態では、洗濯兼脱水槽を備えた縦型洗濯機について説明したが、これに限らず、乾燥機能を有する洗濯乾燥機にこの発明を適用してもよい。 In the first to third embodiments, the vertical washing machine including the washing / dehydrating tub has been described. However, the present invention is not limited to this, and the present invention may be applied to a washing / drying machine having a drying function.
　この発明の具体的な実施の形態について説明したが、この発明は上記第１～第３実施形態に限定されるものではなく、この発明の範囲内で種々変更して実施することができる。例えば、上記第１～第３実施形態で記載した内容を適宜組み合わせたものを、この発明の一実施形態としてもよい。 Although specific embodiments of the present invention have been described, the present invention is not limited to the first to third embodiments, and various modifications can be made within the scope of the present invention. For example, an appropriate combination of the contents described in the first to third embodiments may be used as one embodiment of the present invention.
　この発明および実施形態をまとめると、次のようになる。 The invention and the embodiment are summarized as follows.
　この発明の一態様に係る洗濯兼脱水槽は、
　金属製の筒状胴部１０１,２０１,３０１と、
　上記筒状胴部１０１,２０１,３０１の下端側に配置され、上記筒状胴部１０１,２０１,３０１の内周面との間に環状のパッキン保持部Ｈ１,Ｈ２,Ｈ３を形成する合成樹脂製の底部１０２,２０２,３０２と、
　上記筒状胴部１０１,２０１,３０１の内周面と上記底部１０２,２０２,３０２の外周面との間の上記環状のパッキン保持部Ｈ１,Ｈ２,Ｈ３に保持された環状のパッキン１０４,２０４,３０４と、
　上記環状のパッキン保持部Ｈ１,Ｈ２,Ｈ３に保持された上記環状のパッキン１０４,２０４,３０４を下方から上端で押し付けるように、上記底部１０２,２０２,３０２に取り付けられた環状のパッキン押さえ１０３,２０３,３０３と
を備え、
　上記底部１０２,２０２,３０２は、外周面の全周にわたってかつ上下方向に間隔をあけて設けられた複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃを有し、
　上記複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃのうちの最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃの下面に上記環状のパッキン１０４,２０４,３０４が当接していると共に、
　上記環状のパッキン押さえ１０３,２０３,３０３の上端が上記環状のパッキン１０４,２０４,３０４を押し付けることによって、上記環状のパッキン１０４,２０４,３０４を弾性変形させていることを特徴とする。 The washing and dewatering tank according to one aspect of the present invention 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. 304,
An annular packing retainer 103, attached to the bottom portions 102, 202, 302 so as to press the annular packings 104, 204, 304 held by the annular packing holding portions H1, H2, H3 from below at the upper end. 203, 303,
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.
　上記構成によれば、筒状胴部１０１,２０１,３０１の内周面と底部１０２,２０２,３０２の外周面との間の環状のパッキン保持部Ｈ１,Ｈ２,Ｈ３に保持された環状のパッキン１０４,２０４,３０４を、環状のパッキン押さえ１０３,２０３,３０３の上端で上方に押し付けて弾性変形させることによって、筒状胴部１０１,２０１,３０１の内周面に対して環状のパッキン１０４,２０４,３０４が径方向外側に向かって付勢する。これにより、筒状胴部１０１,２０１,３０１の内周面を環状のパッキン１０４,２０４,３０４に密着させることができ、筒状胴部１０１,２０１,３０１の内周面と環状のパッキン１０４,２０４,３０４との間の水密性を向上できる。 According to the above configuration, 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. Thereby, 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.
　また、環状のパッキン押さえ１０３,２０３,３０３の上端で環状のパッキン１０４,２０４,３０４を上方に押し付けるときに、底部１０２,２０２,３０２の外周面の全周にわたってかつ上下方向に間隔をあけて設けられた複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃのうちの最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃは、環状のパッキン１０４,２０４,３０４の軸方向の上方への移動を規制するので、最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃの下面に環状のパッキン１０４,２０４,３０４が密着する。これにより、底部１０２,２０２,３０２の最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃと環状のパッキン１０４,２０４,３０４との間の水密性を向上できる。 Further, when 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. Of the plurality of provided flange portions 102a, 102b, 102c, 202a, 202b, 202c, 302a, 302b, 302c, the lowermost flange portions 102c, 202c, 302c are shafts of the annular packings 104, 204, 304. Since the upward movement in the direction is restricted, 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.
　このように、筒状胴部１０１,２０１,３０１の内周面と底部１０２,２０２,３０２の外周面との間かつ底部１０２,２０２,３０２の外周面に環状のパッキン１０４,２０４,３０４が外嵌された状態で、環状のパッキン押さえ１０３,２０３,３０３を底部１０２,２０２,３０２に取り付けるときに、環状のパッキン１０４,２０４,３０４を上端で環状のパッキン１０４,２０４,３０４に押し付けることで、環状のパッキン１０４,２０４,３０４を容易に弾性変形させることができ、組立性よく水密性を確保できる。 As described above, 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. When 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. Thus, the annular packings 104, 204, and 304 can be easily elastically deformed, and watertightness can be secured with good assemblability.
　したがって、簡単な構成で金属製の筒状胴部１０１,２０１,３０１と合成樹脂製の底部１０２,２０２,３０２との間の水密性を向上できる。 Therefore, it is possible to improve the watertightness between the metal cylindrical body portions 101, 201, 301 and the synthetic resin bottom portions 102, 202, 302 with a simple configuration.
　なお、合成樹脂製の底部１０２,２０２,３０２を用いることによって、コストを低減できると共に、軽量化を図ることができる。さらに、撹拌翼(パルセータ)２０と底部１０２,２０２,３０２との隙間にコインなどの異物の混入を防止できるように、撹拌翼２０と底部１０２,２０２,３０２との隙間を容易に最適化できる。 In addition, by using the synthetic resin bottoms 102, 202, and 302, the cost can be reduced and the weight can be reduced. Furthermore, 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. .
　また、最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃによって環状のパッキン１０４,２０４,３０４が位置決めされるので、環状のパッキン１０４,２０４,３０４が上方にはみ出すことがなくなり、美観を保つことができる。 Further, since the 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. .
　また、一実施形態の洗濯兼脱水槽では、
　上記筒状胴部１０１,２０１,３０１の下端部には、上記底部１０２,２０２,３０２の上記複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃのうちの最も上側のフランジ部１０２ａ,２０２ａ,３０２ａよりも上側でかつ該フランジ部１０２ａ,２０２ａ,３０２ａの外周縁よりも径方向内側に突出する位置決め部１１０,２１０,３１０が設けられている。 Moreover, in the washing and dewatering tank of one embodiment,
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.
　上記実施形態によれば、筒状胴部１０１,２０１,３０１の下端部に設けられた位置決め部１１０,２１０,３１０が、底部１０２,２０２,３０２の複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃのうちの最も上側のフランジ部１０２ａ,２０２ａ,３０２ａよりも上側でかつ該フランジ部１０２ａ,２０２ａ,３０２ａの外周縁よりも径方向内側に突出していることにより、筒状胴部１０１,２０１,３０１の下端側に底部１０２,２０２,３０２を配置するとき、底部１０２,２０２,３０２の最も上側のフランジ部１０２ａ,２０２ａ,３０２ａの上側が筒状胴部１０１,２０１,３０１の位置決め部１１０,２１０,３１０に当接して、筒状胴部１０１,２０１,３０１に対して底部１０２,２０２,３０２を位置決めすることができる。 According to the above embodiment, 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. When the bottom portions 102, 202, 302 are arranged on the lower end side of the cylindrical body portions 101, 201, 301, 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.
　また、一実施形態の洗濯兼脱水槽では、
　上記筒状胴部２０１は、上記位置決め部２１０よりも下側の領域Ｓ１が下方に向かって徐々に拡径した円錐筒形状である。 Moreover, in the washing and dewatering tank of one embodiment,
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.
　上記実施形態によれば、筒状胴部２０１の位置決め部２１０よりも下側の領域Ｓ１が下方に向かって徐々に拡径した円錐筒形状することによって、外周面の全周にわたって複数のフランジ部が設けられた底部を、筒状胴部２０１内に挿入しやすくなり、作業性が向上する。 According to the above-described embodiment, 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.
　また、一実施形態の洗濯兼脱水槽では、
　上記筒状胴部３０１は、上記位置決め部３１０よりも下側の領域のうち、上記複数のフランジ部３０２ａ,３０２ｂ,３０２ｃに対応する領域Ｓ２１が円筒形状であり、その円筒形状の領域よりも下側の領域Ｓ２２が下方に向かって徐々に拡径した円錐筒形状である。 Moreover, in the washing and dewatering tank of one embodiment,
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.
　上記実施形態によれば、筒状胴部３０１の位置決め部３１０よりも下側の領域のうち、複数のフランジ部３０２ａ,３０２ｂ,３０２ｃに対応する領域Ｓ２１を円筒形状にすることによって、筒状胴部３０１の内径とほぼ同じ外径の底部３０２を下方から組み付け可能となるので、隙間なく筒状胴部３０１と底部３０２とを組み付けることができる。これにより、真円度、振れの精度の高い洗濯兼脱水槽を作成することが可能になり、洗濯兼脱水槽の振れによって発生する脱水時の振動を小さく抑えることが可能となる。 According to the above-described embodiment, 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.
　また、筒状胴部３０１の複数のフランジ部３０２ａ,３０２ｂ,３０２ｃに対応する円筒形状の領域Ｓ２１よりも下側の領域Ｓ２２を下方に向かって徐々に拡径した円錐筒形状にすることによって、環状のパッキン３０４を筒状胴部３０１内に下側から挿入するための開口の径が底部３０２よりも広くなっているので、作業性が向上する。これにより、品質の向上、生産の時間短縮が可能となる。 In addition, by making the region S22 below the cylindrical region S21 corresponding to the plurality of flange portions 302a, 302b, 302c of the cylindrical body portion 301 into a conical cylinder shape gradually expanding in diameter downward, Since the diameter of the opening for inserting the annular packing 304 into the cylindrical body portion 301 from the lower side is wider than that of the bottom portion 302, workability is improved. This makes it possible to improve quality and shorten production time.
　また、一実施形態の洗濯兼脱水槽では、
　上記底部１０２,２０２,３０２は、上記複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃのうちの最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃの下面と共に上記環状のパッキン１０４,２０４,３０４の位置決めするように、上記環状のパッキン１０４,２０４,３０４に対して径方向内側かつ下方に向かって立設された環状のリブ１０２ｄ,２０２ｄ,３０２ｄを有する。 Moreover, in the washing and dewatering tank of one embodiment,
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. In order to position the packings 104, 204, and 304, 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.
　上記実施形態によれば、環状のパッキン１０４,２０４,３０４に対して径方向内側かつ下方に向かって環状のリブ１０２ｄ,２０２ｄ,３０２ｄを底部１０２,２０２,３０２に立設することによって、底部１０２,２０２,３０２の強度を向上しつつ、複数のフランジ部１０２ａ,１０２ｂ,１０２ｃ,２０２ａ,２０２ｂ,２０２ｃ,３０２ａ,３０２ｂ,３０２ｃのうちの最も下側のフランジ部１０２ｃ,２０２ｃ,３０２ｃの下面と共に、環状のリブ１０２ｄ,２０２ｄ,３０２ｄの外周面で環状のパッキン１０４,２０４,３０４を位置決めすることが可能になる。 According to the above-described embodiment, 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.
　また、この洗濯機では、
　上記のいずれか１つの洗濯兼脱水槽１００を備えたことを特徴とする。 In this washing machine,
Any one of the above-described washing and dewatering tubs 100 is provided.
　上記構成によれば、簡単な構成で金属製の筒状胴部１０１,２０１,３０１と合成樹脂製の底部１０２,２０２,３０２との水密性を向上できる洗濯兼脱水槽１００を備えた洗濯機を実現することができ、節水性能の低下を防ぐことができる。 According to the above configuration, 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.
　１…本体ケーシング
　２…水槽
　４…上蓋
　５…操作表示部
　１１…上面板
　１２…ベース
　２０…撹拌翼
　４０…環状のバランサー
　５０…クラッチ・ブレーキ機構
　１００…洗濯兼脱水槽
　１０１,２０１,３０１…筒状胴部
　１０２,２０２,３０２…底部
　１０２ａ,２０２ａ,３０２ａ…第１フランジ部
　１０２ｂ,２０２ｂ,３０２ｂ…第２フランジ部
　１０２ｃ,２０２ｃ,３０２ｃ…第３フランジ部
　１０２ｄ,２０２ｄ,３０２ｄ…環状のリブ
　１０３,２０３,３０３…環状のパッキン押さえ
　１０３ａ,２０３ａ,３０３ａ…外周壁部
　１０３ｂ,２０３ｂ,３０３ｂ…上端部
　１０３ｃ,２０３ｃ,３０３ｃ…環状底部
　１０３ｄ,２０３ｄ,３０３ｄ…内周壁部
　１０４,２０４,３０４…環状のパッキン
　１１０,２１０,３１０…位置決め部
　１２１,１２３,２２１,２２３,３２１,３２３…ネジ
　１２２,１２４,２２２,２２４,３２２,３２４…ネジ穴
　Ｈ１,Ｈ２,Ｈ３…環状のパッキン保持部 DESCRIPTION OF SYMBOLS 1 ... Main body casing 2 ... Water tank 4 ... Upper lid 5 ... Operation display part 11 ... Top plate 12 ... Base 20 ... Stirring blade 40 ... Ring balancer 50 ... Clutch / brake mechanism 100 ... Washing and dehydration tank 101, 201, 301 ... Tube Shaped body portion 102, 202, 302 ... bottom portion 102a, 202a, 302a ... first flange portion 102b, 202b, 302b ... second flange portion 102c, 202c, 302c ... third flange portion 102d, 202d, 302d ... annular rib 103 , 203, 303 ... annular packing retainers 103a, 203a, 303a ... outer peripheral wall portions 103b, 203b, 303b ... upper end portions 103c, 203c, 303c ... annular bottom portions 103d, 203d, 303d ... inner peripheral wall portions 104, 204, 304 ... annular Packing 110,210,310 ... positioning part 121,123,221,223,321, 23 ... Screw 122,124,222,224,322,324 ... screw holes H1, H2, H3 ... annular packing holding portion

Claims (6)

  1. 　金属製の筒状胴部と、
    　上記筒状胴部の下端側に配置され、上記筒状胴部の内周面との間に環状のパッキン保持部を形成する合成樹脂製の底部と、
    　上記筒状胴部の内周面と上記底部の外周面との間の上記環状のパッキン保持部に保持された環状のパッキンと、
    　上記環状のパッキン保持部に保持された上記環状のパッキンを下方から上端で押し付けるように、上記底部に取り付けられた環状のパッキン押さえと
    を備え、
    　上記底部は、外周面の全周にわたってかつ上下方向に間隔をあけて設けられた複数のフランジ部を有し、
    　上記複数のフランジ部のうちの最も下側のフランジ部の下面に上記環状のパッキンが当接していると共に、
    　上記環状のパッキン押さえの上端が上記環状のパッキンを押し付けることによって、上記環状のパッキンを弾性変形させていることを特徴とする洗濯兼脱水槽。     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,
    A washing and dewatering tub, wherein the annular packing is elastically deformed by pressing the annular packing against an upper end of the annular packing retainer.
  2. 　請求項１に記載の洗濯兼脱水槽において、
    　上記筒状胴部の下端部には、上記底部の上記複数のフランジ部のうちの最も上側のフランジ部よりも上側でかつ該フランジ部の外周縁よりも径方向内側に突出する位置決め部が設けられていることを特徴とする洗濯兼脱水槽。     In the washing and dewatering tank according to claim 1,
    A positioning portion is provided at the lower end portion of the cylindrical body portion so as to protrude above the uppermost flange portion of the plurality of flange portions of the bottom portion and radially inward from the outer peripheral edge of the flange portion. Washing and dewatering tub characterized by being made.
  3. 　請求項２に記載の洗濯兼脱水槽において、
    　上記筒状胴部は、上記位置決め部よりも下側の領域が下方に向かって徐々に拡径した円錐筒形状であることを特徴とする洗濯兼脱水槽。     In the washing and dewatering tank according to claim 2,
    The washing / dehydrating tub characterized in that the cylindrical body portion has a conical cylindrical shape in which a region below the positioning portion gradually increases in diameter downward.
  4. 　請求項２に記載の洗濯兼脱水槽において、
    　上記筒状胴部は、上記位置決め部よりも下側の領域のうち、上記複数のフランジ部に対応する領域が円筒形状であり、その円筒形状の領域よりも下側の領域が下方に向かって徐々に拡径した円錐筒形状であることを特徴とする洗濯兼脱水槽。     In the washing and dewatering tank according to claim 2,
    In the cylindrical body portion, a region corresponding to the plurality of flange portions in a region below the positioning portion is cylindrical, and a region below the cylindrical region is directed downward. A washing and dewatering tub characterized by having a conical cylinder shape with gradually increasing diameter.
  5. 　請求項１から４までのいずれか１つに記載の洗濯兼脱水槽において、
    　上記底部は、上記複数のフランジ部のうちの最も下側のフランジ部の下面と共に上記環状のパッキンの位置決めするように、上記環状のパッキンに対して径方向内側かつ下方に向かって立設された環状のリブを有することを特徴とする洗濯兼脱水槽。     In the washing and dewatering tub according to any one of claims 1 to 4,
    The bottom portion is erected radially inward and downward with respect to the annular packing so as to position the annular packing together with the lower surface of the lowermost flange portion of the plurality of flange portions. A washing and dewatering tub characterized by having an annular rib.
  6. 　請求項１から５までのいずれか１つに記載の洗濯兼脱水槽を備えたことを特徴とする洗濯機。 A washing machine comprising the washing and dewatering tank according to any one of claims 1 to 5.
PCT/JP2017/030100 2017-05-30 2017-08-23 Washing/draining tank and washing machine WO2018220870A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08224397A (en) * 1995-02-22 1996-09-03 Toshiba Corp Spin basket of washing machine
WO2016189910A1 (en) * 2015-05-27 2016-12-01 シャープ株式会社 Washing-cum-dewatering tub and washing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101054408B1 (en) * 2004-04-19 2011-08-05 엘지전자 주식회사 washer
CN106498659B (en) * 2015-09-07 2020-09-08 青岛海尔洗衣机有限公司 Washing machine inner barrel, processing technology and washing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08224397A (en) * 1995-02-22 1996-09-03 Toshiba Corp Spin basket of washing machine
WO2016189910A1 (en) * 2015-05-27 2016-12-01 シャープ株式会社 Washing-cum-dewatering tub and washing machine

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