JPH04197291A - Washing machine - Google Patents

Abstract

PURPOSE:To prevent the sticking of detergent refuse and the generation or mold on the outside peripheral surface of a washing tank by adopting a washing and dehydrating tank made of stainless steel, constituted of three parts of the upper ring part for forming the upper part, a bottom plate part for forming a bottom part, and a body part for forming a drum part. CONSTITUTION:A washing and dehydrating tank 30 is made of a stainless steel plate, and constituted of three parts of the upper ring part 31 to which a plastic balance ring 40 sealed with a fluid in the inside is attached, a body part 32 provided with projecting parts 32a, 32b for increasing a washing effect and a dehydrating hole 32c on the inside peripheral surface, and a dish-like bottom plate part 55 in which a a flange 42 being a reinforcing bottom plate connected to a clutch part 18d is attached to the bottom face. Since the dehydrating tank 30 is made of a stainless steel plate, it has sufficient strength, comparing with a plastic washing tank. Since it is unnecessary to stretch a rib around the outside peripheral surface, it is smooth. Therefore, a factor by which detergent refuse, etc., sticks and collects does not exist at all. Also, sufficient strength is obtained with a thin plate, therefore, by that portion, the inside capacity becomes large, and it is possible to cope with a large capacity.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a stainless steel washing and dewatering tank (basket).
The present invention relates to a washing machine equipped with a stainless steel basket, and particularly to a stainless steel basket structure.

[Conventional technology]

Most conventional baskets are made of plastic, as described in Japanese Patent Application Laid-Open No. 57-203492.
Stainless steel ones have only recently been used in drum-type washing machines.

[Problem to be solved by the invention]

The plastic basket described above requires increased strength of the washing tank itself to withstand high-speed rotation during dehydration, so the wall thickness is increased or ribs are placed around the outer circumferential surface. As a result, if the machine is used for many years, cleaning residue or mold may form between the ribs that stretch around the outer circumferential surface and re-adhere to clothing. In addition, due to increased wall thickness and ribs, the actual wall thickness increases, which causes the problem that the internal volume of the basket decreases accordingly. To provide a washing machine having a clean basket that eliminates drawbacks and is compatible with a large capacity.

[Means to solve the problem]

The above purpose is achieved by constructing a washing/dehydration tank with an upper ring part forming an upper part, a dish-shaped bottom plate part forming a bottom plate, and a cylindrical body part, and these three members are made of stainless steel plates. achieved.

[Effect]

The basket is made up of three parts: an upper ring part that forms the upper part, a bottom plate part that forms the bottom part, and a cylindrical body part that forms the body part.The basket is made of stainless steel plate, so unlike plastic-made storage tanks, it is quite durable. It has strength. There is no need for ribs on the outer circumferential surface, and it is smooth. Therefore,
There is no element where detergent residue or the like can adhere and accumulate. In addition, since sufficient strength can be obtained with a thin plate, the internal volume is correspondingly large, making it possible to accommodate larger capacity.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In Fig. 1, reference numeral 1 denotes an outer frame made by pressing a steel plate and having a hanging rod holder 1a and legs 1b.

A top cover 2 surrounds the upper surface of the outer frame 1 and has a lid 3, a back panel 3a, and a control section 20. 4 is an outer tank that stores water for washing. 4a is an air reservoir connected to an air hose 5 and a water level sensor 6, and is configured to control the tank by replacing the water supplied from the water supply device 24 with the water level when the water supply valve 23 is opened. Reference numeral 4b denotes a suspension rod holder, through which the suspension rod 7 is passed through, and the spring 9 is held between a spring holder 10 and a hook portion 7a, and the spring 9, spring holder 10, and hook portion 7a are surrounded by a sliding tube 7C. In the upper part, a hanging rod holder 8 for rotationally holding the hanging rod is positioned on the hanging rod receiver 1a. Reference numeral 14 denotes a lower base, which is a drive section 18 having a main motor 15, a reduction gear, a brake, a clutch section 18d, etc.
is held and is locked to the outer tank 11. A motor shaft 15a is engaged with a pulley 16 and transmits the rotation of the motor to a pulley 18c on the drive unit 18 side via a belt 17.

18a is a rotating blade shaft protruding from the drive section, and 18b is a washing tank shaft. Reference numeral 19 is a seal portion, and 21 is a drain hole, which is a portion for draining water using a drain valve 21a and a drain hose 22. 25 supplies tap water with a water supply hose. Reference numeral 30 denotes a washing/dehydration tank (basket) made of a stainless steel plate, and as shown in FIG. 2, it has an upper ring part 31 to which a plastic balance ring 40 filled with fluid is attached, and a convex part 32a for increasing the cleaning effect. , 32b and dehydration hole 32C
The body part 32 has a body part 32 on its inner circumferential surface, and the plate-shaped bottom plate part 33 has a flange 42 as a reinforcing bottom plate connected to the clutch part 18d attached to the bottom surface. More specifically, the body 32 of the body basket
A large number of round protrusions 32a and oval-shaped protrusions 32b are protruded inward from the circumferential surface of the protrusion 32b, alternately or every two or three protrusions. Furthermore, a large number of dewatering holes (burring holes) 32c are pushed outward between the protrusions on the circumferential surface.

As shown in Fig. 7, the body part 32a is made by rolling a single stainless steel plate using a roll machine, and then folding and staking A32d.
By doing so, it becomes cylindrical.

Further, as shown in FIGS. 3 and 4, the bottom plate portion 33 is in the shape of a dish or wash basin forming the bottom of the basket 30, and has a hole 30a in the center bottom. Further, a flange 42 serving as a reinforcing bottom plate for connecting the basket 30 to the clutch portion 18d is attached and fixed to the lowermost surface 33a of the bottom plate portion 33, which is depressed in a star shape. The fixing method is to screw the pierce nut 33b which is previously driven into the lowermost surface of the bottom plate part 33. - Several convex portions 30c are provided on the bottom of the outer periphery of the high step in order to prevent clothes from rotating together and reducing the cleaning effect when the agitating blades 13 are rotated in the forward and reverse directions.

Further, as shown in FIGS. 5 and 6, the upper ring part 31 forms the upper part of the basket 30, and the upper part forms an opening 31a, and the upper ring part 31 has a ring shape that widens outward as it goes downward. A balance ring 40 is attached to the outside of the opening 31a as shown in FIG.

As described above, the bottom plate portion 33 and the body portion 32. The upper ring part 31 and the body part 32 are each folded and crimped around the entire circumference to form a stainless steel basket 30. Details of the seam-fold crimping portions 33c of the bottom plate portion 33 and the body portion 32, and the seam-fold crimping portions 31b of the upper ring portion 31 and the body portion 32 are shown in FIGS. 8 and 9.

In addition, the thickness of the bottom plate portion 33, which is subjected to the most stress, is 1 to 1.5 mm.
m+, the thickness of the body part 32 is 0.61, and the thickness of the upper ring part 31, where stress is least applied, is 0.5m.
There are different plate thicknesses for different types. However, this is just one example, and the plate thicknesses of the upper ring part 31 and the body part 32 may be the same.

Furthermore, the material used is stainless steel containing Ti (titanium), which has excellent deep drawability, stretch formability, and corrosion resistance, making it easy to process.

[Effect of idea]

As described above, according to the present invention, the stainless steel-backed washing and dewatering tank is composed of three parts: an upper ring part forming an upper part, a bottom plate part forming a bottom part, and a body part forming a body part. By adopting this, it is possible to prevent detergent scum from adhering to the outer surface of the washing tank and from forming mold.

[Brief explanation of the drawing]

FIG. 1 is a vertical cross-sectional view of an embodiment of the present invention, FIG. 2 is a vertical cross-sectional view of essential parts of an embodiment of the present invention, FIG. 3 is a plan view of the bottom plate of the present invention, and FIG. is a vertical sectional view of the bottom plate of the present invention, FIG. 5 is a plan view of the upper ring portion of the present invention, FIG. 6 is a vertical sectional view of the upper ring portion of the present invention, and FIG. 7 is a longitudinal sectional view of the body plate of the present invention. FIG. 8 is a vertical staking sectional view of the bottom plate and body plate of the present invention, and FIG. 9 is a swaging sectional view of the upper ring portion and body plate of the present invention. 30...Basket, 31...Upper ring part, 32...
...Body part, 33...Bottom plate part, 40...Balance ring, 32a...Round convex part, 32b...Oval convex part,
32d...Folding part of upper ring and body plate, 33C...
・Folding part of body plate and bottom plate

Claims (1)

[Claims] 1. In a washing machine equipped with a washing and dehydrating tank, the washing and dehydrating tank is formed using a stainless steel plate, and a fluid balancer that seals fluid inside is attached to the upper part of the washing and dehydrating tank. A washing machine characterized by being attached to. 2. In a washing machine equipped with a washing/dehydrating tank, a stirring blade rotatably provided at the inner bottom of the washing/dehydrating tank, and a motor for rotating the washing/dehydrating tank or the stirring blade, The aquarium has a cylindrical body, a dish-shaped bottom plate provided at the bottom of the body, and an upper ring provided at the top using stainless steel plates, and the lower part of the body and the upper outer periphery of the bottom plate. A washing machine characterized in that the upper part of the body part and the lower outer periphery of the upper ring are joined by folding and crimping. 3. A washing machine according to claim 2, characterized in that a fluid balancer containing a fluid therein is attached to the upper ring part. 4. The washing machine according to claim 2, wherein the body portion is bent into a cylindrical shape and both ends thereof are brought together, and this joined portion is formed by joining by folding and crimping. 5. A washing machine according to claim 2, characterized in that the bottom plate portion is formed by squeezing with a press. 6. A washing machine according to claim 2, characterized in that the upper ring portion is formed by squeezing with a press. 7. A washing machine according to claim 2, characterized in that the seam-fold crimping is formed over the entire circumference. 8. A washing machine according to any one of claims 2 to 6, characterized in that the body part is thicker than the upper ring part, and the bottom plate part is thicker than the body part. 9. A washing machine according to any one of claims 1 to 7, characterized in that a body portion is formed with a large number of inwardly projecting protuberances. 10. A washing machine according to claim 9, characterized in that the raised portion is formed in a round or oval shape. 11. A washing machine according to any one of claims 1 to 9, characterized in that a stainless steel plate containing Ti (titanium) is used as the stainless steel plate. 12. A washing machine according to claim 4, characterized in that the overhanging portion of the seam crimped portion formed at the joint portion of the body portion is provided on the outer surface of the washing and dewatering tank. 13. In any one of claims 2 to 11, it is provided that the overhanging part of the seam crimping that connects the body part and the bottom plate part is provided on the outer surface of the washing and dehydrating layer. A washing machine with special features. 14. In any one of claims 2 to 12, it is provided that the overhanging part of the flap crimping that connects the body part and the upper ring part is provided on the outer surface of the washing and dewatering tank. A washing machine with special features. 15. A washing machine according to any one of claims 1 to 13, characterized in that a large number of holes for centrifugal dehydration are formed in the body. 16. In any one of claims 1 to 14, the patent provides that a reinforcing bottom plate is provided on the outer bottom surface of the washing/drying tank, and this reinforcing bottom plate is tightened and fixed to the washing/drying tank with screws. Washing machine. 17. A washing machine according to claim 15, characterized in that the reinforcing bottom plate is formed by die-casting aluminum. 18. A washing machine according to claim 16, characterized in that the screw is made of stainless steel. 19. A washing machine according to any one of claims 15 to 17, characterized in that a shaft supporting a washing and dehydrating tank is fixed to the reinforcing bottom plate. 20. A washing machine according to any one of claims 1 to 18, characterized in that the water receiving tank in which the washing and dehydration tank is placed is made of plastic.