JPH0536080B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a washing machine that changes the overflow water level of a washing tub by expanding and contracting an overflow pipe up and down by sliding an operator in a non-vertical direction on the surface of an operation box. Regarding overflow water level switching device.

[Technical background of the invention]

Conventionally, in a washing machine, for example, a two-tub washing machine, a washing tub 2 is installed below an operation box 1, as shown in FIG.
The overflow chamber 4 is provided with an overflow pipe 5 that can be extended and contracted up and down in a bellows shape, etc., which is provided inside the overflow chamber 4 so as to equalize the change in water level only by partitioning it with a porous overflow strainer 3 or the like. , the front-rear direction (non-vertical direction) including the diagonal direction, that is, the slight up-and-down direction of the surface portion of the operation box 1 that faces diagonally upward;
A first connecting member 7 made of, for example, a thick steel plate, which is displaced vertically from the sliding direction based on the operation of an operator 6 provided so as to be slidably operated; and a second connecting member 8, which is made of, for example, a steel cable, which is displaced vertically. The overflow water level of the washing tub 2 is changed by expanding and contracting the water through the washing tub 2.

[Problems with background technology]

However, in the case of the conventional device described above, when the operator 6 is operated, the tip of the first connecting member 7 made of a steel body such as a thick steel plate does not move up and down in a straight line, but draws an arcuate trajectory A. Due to the extra movement caused by the bulge, the tip of the first connecting member 7 moves up and down by an amount Ls that is smaller than the amount of operation Lo of the operator 6, which causes the overflow pipe 5 to move up and down. The amount of expansion and contraction is also small, resulting in the problem that a sufficient switching width of the overflow water level cannot be obtained.
Furthermore, in this case, as the inclination angle of the surface of the operation box 1 becomes smaller, the bulge of the tip of the first connecting member 7 also increases, and therefore, the inclination angle of the surface of the operation box 1 cannot be made too small. There were also problems that imposed structural constraints.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and an object thereof is to obtain a sufficient switching width of the overflow water level, and to limit the inclination angle of the surface of the operation box. To provide an excellent overflow water level switching device for a washing machine that can be realized without any problems.

[Summary of the invention]

In the present invention, the connecting member is constituted by a flexible member having rigidity in the longitudinal direction along the sliding direction of the operator, and the connecting member is provided at the bottom of the operation box so that the connecting member is flexible in the vertical direction from the non-perpendicular sliding direction of the operator. It is characterized by being equipped with a guide part that guides the user while moving the pipe, so that the connecting member does not bulge out and the amount of operation of the operator can be transmitted to the overflow pipe without loss. .

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be explained with reference to FIGS. 1 and 2. First, in FIG.
Reference numeral 1 denotes an outer box, in which a washing tub 12 is disposed, and a pulsator 13 is disposed at the inner bottom of the washing tub 12. Reference numeral 14 denotes an operation box disposed on the outer box 11, and below this an overflow chamber 15 which also serves as a drainage chamber is formed by protruding from the washing tub 12. 16 is a drain hole formed at the bottom of the overflow chamber 15, to which a drain hose 17 is connected outside the overflow chamber 15,
On the other hand, a drain valve 18 is arranged in the overflow chamber 15. Reference numeral 19 denotes a support body with a drain valve 18 attached to its lower end and arranged so as to be movable up and down in the overflow chamber 15, and an overflow pipe 20 is connected above the drain valve attachment part.
A bellows-shaped overflow pipe 21 that can be expanded and contracted up and down is connected above the overflow pipe 20. In addition, 22 is a connecting ring attached to the upper end of the overflow pipe 21, while 23 is a compression coil spring interposed between the bottom of the operation box 14 and the upper end of the support body 19.
As a result, the drain valve 18 is brought into pressure contact with the surrounding area of the drain port 16 via the support 19, thereby creating a normal drain valve closed state, and at the same time, the overflow pipe 21 is drained through the overflow pipe 20 and the drain port 16. Hose 17
It is in a state where it is communicated with. Reference numeral 24 denotes an operating wire connected to the support 19, by which the support 19 and, by extension, the drain valve 18 are pulled up to open the drain port 16. Now, in detail, the operation box 14 is formed by connecting an upper panel 26 to a lower base 25, and the panel 26 has a panel 26 extending in a non-vertical direction, for example, in the left and right lateral directions as shown in FIG. A through groove 27 is formed. 28 is a panel 26 aligned with the transparent groove 27.
A guide plate is attached to the back side of the dustproof body 29 with a tuft pin screw 30, into which a slider 31 is slidably fitted, and which passes through the dustproof body 29 and the through groove 29. An operator 32 is attached to the protruding piece 31a, and is provided on the surface of the operation box 14 so that the operator 32 can be slid in the left and right lateral directions, which are non-vertical directions. Reference numeral 33 denotes a first connecting member whose one end is attached to the slider 31 and eventually to the operator 32, and this is connected to a flexible member having rigidity in the longitudinal direction along the sliding direction of the operator 32, such as a spring material made of a thin plate. It is composed of: On the other hand, 34 is base 2
It is a guide part formed in 5, and a descending part 34b forming an arc shape is connected from the horizontal platform part 34a to the left side thereof,
Further, the lower end of the descending portion 34b has a rising portion 34c facing the descending portion 34b with the hole 35 in between. 36 is a guide groove formed in the horizontal base part 34a of the guide part 34, into which the guide receiving piece 33a formed at one end of the first connecting member 33 is fitted; A stopper 37 is formed at the left end of the guide groove 36 in the figure. Reference numeral 38 denotes a second connecting member, which is made of, for example, a steel cable, and one end of which is bent in an arc shape along the descending portion 34b of the guide portion 34 as shown by the two-dot chain line in the figure, and is connected to the hole 35. Flooding room 1
The first connecting member 33 is connected to the other end of the first connecting member 33 that protrudes into the inside of the connecting ring 22 , and the other end is connected to the connecting ring 22 and the overflow pipe 21 . In FIG. 2, 39 is a strainer for overflowing among the strainers that block the opening facing into the washing tub 2 of the overflow chamber 15, and 40 is a strainer for draining water. The change in water level is made to be the same as in the washing tub 12.

Next, to explain the operation, in the case of the above structure, when the lever holding the operator 32 is slid in the left and right lateral directions, the first connecting member 33 is pushed and pulled through the slider 31, and further As the second connecting member 38 is pushed and pulled by the first connecting member 33, the overflow pipe 21 is expanded and contracted up and down via the connecting ring 22, thereby switching the overflow water level of the washing tub 12. When operated in this manner, the first connecting member 33 slides from the horizontal table part 34a along the descending part 34b and further regulated by the rising part 34c in the guide part 34 while being bent in an arc shape. , this fold first connecting member 33
Since it is made of a flexible member, it does not bulge out like in the past and exhibits a lean state of bending, so the amount of operation of the operator 32 can be transmitted to the overflow pipe 21 without loss, thereby reducing the switching width of the overflow water level. can be obtained sufficiently. Moreover, in this case, the operation box 14
The magnitude of the inclination angle of the surface portion of the operation box 14 has no relation at all, therefore, the inclination angle of the surface portion of the operation box 14 can be set freely, and the operation box 14 may be almost flat as shown in the figure.

It should be noted that the present invention is not limited to the embodiments described above and shown in the drawings, but can be implemented with appropriate modifications within the scope of the invention.

〔Effect of the invention〕

As is clear from the above, the overflow water level switching device for a washing machine of the present invention is provided with an overflow chamber below the operation box that changes the water level in the same way as the inside of the washing tub, and upper and lower water levels arranged inside this overflow chamber. The overflow water level of the washing tub is changed by expanding and contracting an extensible overflow pipe via a connecting member based on the operation of an operator provided on the surface of the operation box so that it can be slid in a non-vertical direction. The connecting member is made of a flexible member having rigidity in the longitudinal direction along the sliding direction of the operating element, and the connecting member is arranged at the bottom of the operation box in a vertical direction from the sliding direction of the operating element. This feature is characterized by the provision of a guide portion that guides the pipe while being bent, and thereby the amount of operation of the operator can be transmitted to the overflow pipe without loss, so that a sufficient switching width of the overflow water level can be obtained. Moreover, it has an excellent effect in that it can be realized without imposing restrictions on the inclination angle of the surface portion of the operation box.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the present invention,
FIG. 1 is an exploded perspective view of the middle operating section of the main part, FIG. 2 is a vertical sectional side view of the entire main part, and FIG. 3 is a view corresponding to FIG. 2 of the conventional structure. In the figure, 12 is a washing tub, 14 is an operation box, 15 is an overflow chamber, 21 is an overflow pipe, 32 is an operator, 33 is a first connecting member, 34 is a guide part, and 38 is a second connecting member. .

Claims (1)

[Claims] 1. An overflow chamber is provided below the operation box that has the same water level changes as in the washing tub, and a vertically expandable overflow pipe installed inside the overflow chamber is slid in a non-vertical direction onto the surface of the operation box. The overflow water level of the washing tub is changed by expanding and contracting via a connecting member based on the operation of an operator provided in an operable manner, and the connecting member is connected in a longitudinal direction along a sliding direction of the operator. The overflow of a washing machine is made of a flexible member having rigidity, and further includes a guide portion provided at the bottom of the operation box to guide the connecting member while bending it in the vertical direction from the sliding direction of the operator. Water level switching device.