JPS6320156B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a washing machine, and its purpose is to improve the side wall of the washing tub to prevent water from splashing out and to increase the agitation effect on clothes.
This is an attempt to improve the cleaning effect, add a washbasin function to the washing machine, and provide a water tank structure with high utility value that satisfies resource and space savings.

Generally, a washing machine and a washbasin are often used in the same place, and when they are installed separately, there is a problem in that they occupy a considerable amount of installation space.

The present invention solves these difficulties and prevents water from spilling out of the aquarium.The structure of the present invention will be described below with reference to the drawings shown as examples.

In FIG. 1, 1 is a washing machine main body, and 2 is a panel stand integrally formed of synthetic resin or the like, which is mounted above the washing machine main body 1. As shown in FIG. Reference numeral 3 denotes a washing tub formed by blow molding, and water is provided near the opening of the washing tub 3 over at least one side if the tub is approximately quadrilateral, or over at least 1/4 circle if the tub is approximately circular. A water return portion 4 is provided, and a side wall 5 below the water return portion 4 is formed with a large downward slope. Incidentally, this side wall 5 is constructed over the same range as the water return section 4. Reference numeral 6 denotes a drain port on the laundry side, to which one end of a drain hose 7 is attached, and this drain hose 7 is communicated with the outside of the machine via a pot 8 and a hose hole 9. Reference numeral 10 denotes a recess provided in a part of the bottom of the washing tub 3, into which a metal case 11 is water-tightly fixed by a nut 12, and a recess 10 is provided at the upper end of a washing shaft 13 which is slidably fixed inside the metal case 11. A pulsator 14 is attached, and an impeller pulley 15 is attached to the lower end. Reference numeral 16 denotes a flange portion provided at the upper end of the washing machine 3, which is water-tightly fixed to the lower end of the washing side input port 17 of the panel stand 2 via a gasket 18 with a plurality of tuft pin screws (not shown) or the like. . Reference numeral 19 denotes a frame attached to the lower part of the washing machine main body 1, and leg seats 20 are arranged at the four corners. Reference numeral 21 denotes a motor seat protruding from a part of the underframe 19, and a buffer rubber 24 and a buffer rubber 25 are clamped and fixed to this seat 21 via a mounting portion 23 of a washing motor 22 with bolts 26. , elastically supports the washing motor 22. A motor pulley 27 is rotatably fixed to the upper end of the washing motor 22, and a belt 28 is stretched between the motor pulley 27 and the impeller pulley 15. Reference numeral 29 denotes a dehydration tank formed by blow molding, and is provided with a water return part 30 bent inward over at least one side if it is a substantially quadrilateral dehydration tank, or at least 1/4 circle or more if it is a substantially circular dehydration tank. The side wall 31 below the water return part 30 is formed to be inclined inward from the bottom to the water return part. Note that this side wall 31 is constructed over the same range as the water return section 30. Reference numeral 32 denotes a drain port on the dewatering side, to which one end of a dewatering hose 33 is attached, and the other end of this dewatering hose 33 communicates with the middle of the drain hose 7. 34 is the underframe 19
The dewatering motor is elastically supported by a suspension 35 on a part of the
6. The water is transmitted via the dehydration shaft 37 and the coupling 38 to the dehydration basket 40 which is installed inside the dehydration tank 29 and has a large number of water holes 39. A buffer rubber 41 has a seal member 42 and a bearing 43, is fixed to a part of the dehydration tank 29, and rotatably supports the dehydration shaft 37 in a water-tight manner. Reference numeral 44 denotes a flange portion provided at the upper end of the dehydration tank 29, and is fixed to the lower end of the dehydration side input port 45 of the panel stand 2 as a water seal via a packing 46 with a plurality of tuft pin screws (not shown) or the like. 4
7 is a buffer rubber tube that covers the suspension 35.

In FIG. 2, an auxiliary water tank part 50 is located above the opening of the washing tub 3, and has an auxiliary drain port 48 at the bottom and an auxiliary overflow port 49 in a part of the side wall. A laundry lid 51 integrally molded of resin or the like is located above the laundry side input port 17 and is rotatably supported from the panel stand 2 by a hinge shaft 52. 53 is a handle portion into which a hand is inserted when opening and closing. Reference numeral 54 denotes an auxiliary drain pipe that communicates with the auxiliary drain port 49, and an auxiliary drain pipe 55 and an auxiliary overflow pipe 56 that communicate with the auxiliary overflow port 49 are connected in the middle thereof, respectively. Reference numeral 57 denotes a water reservoir extending below the panel stand 2 to accommodate the auxiliary drain pipe 54, etc., and a part of the bottom has a sink-side drain port 58, and when the laundry lid 51 is opened, the auxiliary drain pipe 54 can be opened. A water receiving portion 60 is integrally formed opposite to the water outlet 59 of 54. Reference numeral 61 denotes a washbasin hose, one end of which communicates with the washbasin side drain port 58 and the other end with the drain hose 7, and an S-shaped trap portion 62 is formed in the middle thereof, which is effective in preventing strange odors. Reference numeral 63 denotes an overflow part that protrudes outward from a part of the side wall of the washing tub 3, and a substantially pipe-shaped overflow joint 64 is attached to the overflow port (not shown) provided at the bottom of the overflow part. It is attached so as to cover the section 62, and has a large number of water holes 65.
An overflow filter 66 having the following characteristics is provided. 67
is an overflow hose, one end of which communicates with the overflow port (not shown), and the other end of which communicates with the drain hose 7. 6
Reference numeral 8 denotes an escape hole provided in a part of the overflowing part 62, through which the toilet hose 61 is inserted. Reference numeral 69 denotes a water tap, which is close to the auxiliary water tank section 50 and is fixed to a part of the rear of the panel stand 2 with a nut 70. Reference numeral 71 denotes a flow rate adjusting ring, which is located toward the front side of the washing machine from a part of the faucet 69. Reference numeral 72 denotes a water spout pipe whose one end is rotatably supported by a water seal from the water supply faucet 69, and its open side forms a water spout 73 at a height of at least 25 mm from the top surface of the washing lid 51 to prevent backflow when water is cut off. It has a structure. 74
is a water supply hose, one end of which is fixed with a water seal to a water inlet 75 extending below the water supply faucet 69, and the washing machine main body 1
It is removably attached to a joint (not shown) fixed to a water faucet via a hose hole 76. Note that this water supply hose 74 is not particularly limited to the detachable type as described above, but may have a structure in which it is directly connected to a water pipe via a water stop valve (not shown) or the like. Reference numeral 77 is located at the rear of the panel stand 2, and is a back guard designed to prevent water from splashing at the rear of the main body and to protect against impact of the water tap 69 during packaging, and has a height that projects at least above the upper end of the water tap 69. The length is equal to or longer than the width of the washing lid 51. Reference numeral 78 denotes a plurality of ribs provided on the back surface of the panel stand 2, which are engaged with the upper end of the washing machine main body 1. 79 is the underframe 1
9, facing at least the washing lid 51, having a length equal to or longer than the width of the washing lid 51, and having a height of at least 50 mm or more from the installation surface, and facing at least the washing machine lid 51. The device is configured to have a depth of 50 mm or more from the front of the main body 1, ensuring sufficient space for the feet.

In Fig. 3, 80 is a top mark attached to a part of the rear of the panel stand 2, in which switches (not shown), etc. are stored, 81 is a knob for opening and closing the lid, 82 is a time switch knob, and 83 is a laundry knob. Shows the dehydration switch.

In FIG. 4, reference numeral 84 denotes a washing side water supply port which is close to the rear of the washing lid 51 and is integrally formed with the panel stand 2 almost on the rotation trajectory of the water spouting pipe 72. Positioning guide ribs 86 are provided, and a water supply port 88 is provided via a sponge 87 made of foam material and having a rectifying effect. Reference numeral 89 denotes a washing side water supply hose, one end of which is attached to the water supply port 38 and the other end attached to a water inlet 90 provided on a part of the side wall of the washing tub 3.

In FIG. 5, reference numeral 91 denotes a water supply port on the dehydration side which is close to the rear of the dehydration lid 92 and is integrally formed with the panel stand 2 almost on the rotation trajectory of the water spouting pipe 72. A positioning guide rib 94 is provided, and a water supply port 96 is provided via a sponge 95 made of foam material and having a rectifying effect. Reference numeral 97 denotes a water supply hose on the dehydration side, one end of which is attached to the water supply port 96, and the other end attached to a water inlet holder 98 that is provided on a part of the side wall of the dehydration tank 29 at a position higher than the upper end of the dehydration basket 40. There is. The dehydration lid 92 is rotatably supported on the panel 2 by a hinge shaft 99 so as to cover the dehydration side input port 45. At the rear of this dehydration lid 92, a relief hole 100 is provided to protrude inward from the panel stand 2.
A hinge portion 102 that engages with a safety switch 101 mounted on the back side is integrally molded. In this washing machine, the height from the installation surface to the top surface of the washing lid 51 is set to 720 mm in order to prevent drops from dripping onto the hands from both elbows when washing the washing machine. Further, each motor used in this washing machine is constituted by an axial gap induction motor, and an example of its structure will be explained using the dewatering motor 34 in FIG. 6. 1
03 is a stator, 104 is a rotor, and 105 is a motor shaft. The stator 103 is constructed by integrally molding an iron core 106 and a coil 107 with a resin material such as nonflammable thermosetting polyester. The rotor 104 is formed by die-casting a rotor core 108 from aluminum material and forming it into a disk shape.The boss portion 109, which is the center of rotation, is splined, for example, and is similar to the spline portion 110 applied to the motor shaft 105. It is configured to be slidable in the axial direction and always in a fixed state in the rotational direction. Reference numerals 111 and 112 denote two bearings provided on the stator 103, which rotatably support the motor shaft 105. Reference numeral 113 denotes a mounting part provided on a part of the stator 103, and a support rod 114 on which the suspension 35 is wound and fixed is fixed with a screw 1.
15 and is screwed and fixed. Reference numeral 116 denotes a brake lining, which is fixed directly to a part of the stator 103 by a fixing plate 117 or indirectly by another member (not shown) so that its sliding surface faces the upper surface of the rotor 104. . A spring 118 biases the rotor 104 away from the stator 103 through a spacer 119 and a bearing 111, and applies an axial force to the rotor 104 so that the upper surface of the rotor 104 comes into contact with the opposing brake lining 116. . 120 is a stop ring for preventing the motor shaft 105 from coming off.

What is shown in Fig. 7 is an induction motor having a gap in the radial direction on the dewatering side of a conventional general two-tub washing machine, where 121 is a rotor, 122 is a rotor shaft, 123 is a stator core, and 124 is a coil. ,
These are motor cover 125 and motor cover 1.
26. A bearing 127 and a bearing 128 are attached to both ends of the rotor shaft 122 to rotatably support the rotor shaft 122, and a mounting portion 129 extending from a part of the motor cover 125 has a sixth
The suspension is installed as shown in the figure. On the other hand, a waterproof cover 130 is provided on the top surface of the motor cover 125 to prevent water, dust, etc. from entering the motor, and a dehydration shaft 37 is attached to the tip of the rotor shaft 122 that passes through the waterproof cover 130. An insulating bush 131 provided to prevent electrical leakage between the rotor shafts 122 is fitted, and a brake wheel 132 to which a dewatering shaft 37 is fixed is fitted and fixed from above. A brake shoe 133 is rotatably supported by a part of the waterproof cover 130 and is attached to a part of the brake lever 134 which is biased against the sliding surface of the brake wheel 132 by a brake spring (not shown). has been done.

The effects of the embodiments of the present invention will be described below. By providing the auxiliary water tank section 50 between the opening of the washing tub 3 and the water level of the washing tub 3, space can be used effectively, and water spilling from the auxiliary water tank section 50 overflows into the washing tub 3. It does not wet the floor and is suitable for washing small items, spot washing, etc., which improves usability.Furthermore, by providing the auxiliary overflow port 49 and the auxiliary drain port 48, the auxiliary water tank section 50 can be used for independent rinsing. This can be done easily, and since the drainage from the auxiliary water tank section 50 is formed by a separate hose from the washing tub 3, even if unsanitary items are drained from the auxiliary water tank section 50, they will not flow into the washing tub 3. There isn't. By attaching a water faucet 69 with a shutoff valve to a part of the panel stand 2, there is no need to go to the front of the water faucet to adjust the flow rate or turn off the water, such as when the water faucet and the washing machine are installed far apart. You can easily operate the water supply at hand, and it also functions as a washbasin. Furthermore, a water spout 72 is rotatably supported, and a water spout 73 at the tip thereof is rotatably supported.
By providing the washing-side water supply port 84 and the dehydration-side water supply port 91 approximately on the rotational trajectory of Since it can be used for different purposes even with the lid closed, there is no need for troublesome operations that are common with multi-purpose products like the present invention. In addition, since the water spout 73 and each water supply port are open, it is easy to visually check the state of the water flowing out, eliminating the inconvenience of forgetting to turn off the water due to covered hose piping, etc., and preventing backflow due to water outages, etc. It also serves as prevention. The height of the washing machine with a wash basin according to the present invention is set at 720 mm, which is considerably lower than the height of a normal washing machine, so that it can function as a wash basin while satisfying the washing function.
When stirring the clothes in the washing tub 3, the washing capacity is not reduced even if the height of the washing machine is lower than that of a normal washing machine even though the opening is covered with a washing lid 51. The vertical dimension between the upper end of the washing tub 3 and the water level line is considerably smaller than that of a normal washing machine, and simply covering the washing lid 51 cannot sufficiently prevent water from scattering when stirring clothes. In the present invention, by forming the washing tub 3 by blow molding, the water return part 4 that protrudes inward of the washing tub 3 and the water return part from the lower end, which cannot be formed by injection molding because it becomes an undercut, can be formed. The side wall 5 that slopes inward between the parts, that is, the side wall 5 formed with a large downward slope, can be easily molded into one piece, and can prevent water from splashing outside the machine when stirring clothes. In a normal washing machine (one having a side wall formed with a large upward slope), when the pulsator 14 is agitating, the flow of water located on the side wall is directed outward. A centrifugal force that tries to push the clothes toward the outside works, but in this example, a centripetal force that tries to push the clothes back into the washing tub works due to the reverse gradient, which increases the agitation effect on the clothes and makes the process more complicated. It can generate a strong water flow to enhance the cleaning effect.
Furthermore, by extending the water return part 30 in the dehydration tank 29, it can be integrally formed as a dehydration hatch part that covers the upper part of the dehydration basket 40, and is pressed against the side wall of the dehydration tank by centrifugal force when clothes are dehydrated. In a normal washing machine, water tends to flow toward the opening, just like in the washing tub, but in this example, water tends to flow downward,
In other words, the water is flushed toward the dewatering side drain port 32 to efficiently drain water during dewatering, improve the standing performance of the dehydrating basket due to foaming, and the water that is swept upward from the side wall of a normal washing machine is dehydrated. Inconveniences such as air blowing out from the outer periphery of the lid can also be prevented. In addition, each of these tubs is a separate part from the panel stand 2 that covers the upper part of the washing machine main body 1, and is attached via a packing etc., so it can be washed in a different color or without coloring from the panel stand 2. It can be constructed from inexpensive materials suitable for the tank and dehydration tank, and can be easily replaced with a separate tank, improving service and easily configuring multiple models such as changing capacity. In addition, an auxiliary drain pipe 5 is connected to the washing side input port 17 of the panel stand 2 located on the washing lid 51 having the auxiliary water tank section 50.
By integrally providing the water reservoir section 57 for storing 4 etc. and the water socket 60, when the washing lid 51 is opened, the remaining water in the auxiliary water tank section 50 can be easily drained to the washbasin hose. If the amount of water is small, it can be drained without operating the auxiliary pot 55. The water receiver 60 also prevents water dripping from the water outlet 59 of the auxiliary drain pipe 54 from flowing into the washing tub 3 when the washing lid 51 is opened.
Item 4 acts as a protective wall to prevent clothes from getting caught during agitation. Further, in this embodiment, the motor is configured as an axial gap induction motor. To explain its operation, when the dehydration motor side is energized and the dehydration lid 92 is opened, the safety switch 101 is opened and the axial direction Energization to the air gap induction motor is turned off. At this time, the rotor 104 is moved upward in FIG. 6 in the direction of the motor shaft 105 by the force of the spring 118.
The upper surface of the rotor 104 comes into contact with the brake lining 116, and the rotating dehydration basket 40 is braked to stop its rotation. Conversely, when the axial air gap induction motor is energized, the rotor 104 is moved by the field force set by the iron core 106 of the stator 103, the coil 107, etc.
8 is attracted, and at the same time, the rotor 104 separates from the brake lining 116, the braking is released, and dehydration operation is started. S is the gap between the stator 103 and rotor 104 when energized, and is 1
35 is a fan for cooling the motor. In this way, the axial gap induction motor as in this embodiment can be configured to be much thinner in the axial direction compared to the conventional induction motor having a radial gap, and can be used in a washing machine with a sink. This washing machine is ideal for machines whose height is restricted to be lower than conventional washing machines, and which require sufficient washing and dewatering capacity while ensuring a vertical distance from the floor to the bottom of the motor. Furthermore, the dewatering side braking mechanism can quickly stop the dewatering rotation without any need for a conventional mechanism to transmit the lid opening/closing operation to the braking mechanism, and its structure is based on an axial gap induction motor. However, centrifugal dehydration is achieved by making full use of the characteristic that the attraction force between the rotor 104 and the stator 103 is extremely large when energized, and by installing the spring 118 in a predetermined position. This has the effect of significantly simplifying the braking mechanism of the machine.

As described above, according to the present invention, in a washing machine with a washbasin, etc., which has a limited body height and is required to have a normal washing capacity, inconveniences such as water splashing can be solved with a simple structure. This has great effects, such as being able to prevent warping and keeping the investment amount to a minimum without requiring the large mold costs found in injection molding and the like.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of the washing machine of the present invention, Fig. 2 is a side sectional view with the same part omitted, Fig. 3 is a plan view of the same, Fig. 4 is an enlarged sectional view of the vicinity of the water supply port on the washing side, and Fig. 5. 6 is an enlarged sectional view of the motor used in the embodiment of the present invention; FIG. 7 is an enlarged sectional view of the motor used in the conventional example; 1... washing machine main body; 3... ...Washing tub, 4...Water return section, 5...Side wall, 6...Washing side drain port, 29...
... Dehydration tank, 30 ... Water return section, 31 ... Side wall, 3
2... Dewatering side drain port, 48... Auxiliary drain port, 50
... Auxiliary water tank section, 51 ... Washing lid, 69 ... Water tap.

Claims (1)

[Claims] 1. A washing tub that is built into the main body of a washing machine and has a washing side drain port and a dewatering side drain port at the bottom, a water return part that protrudes inward from the tub near the opening of the tub, such as a spin-drying tub. A side wall is provided that slopes inward from the bottom of each tub to the water return part, and each tub is integrally molded and located above the opening of the washing tub, and an auxiliary drain port is provided at the bottom. 1. A washing machine with a washbasin, which rotatably supports a laundry lid having an auxiliary water tank, and a water tap is provided near the auxiliary water tank.