JPH0141422Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to an overflow device for a washing machine that adjusts changes in overflow water level by linear sliding of a slider.

[Technical background of the invention]

Conventionally, as a washing machine overflow device, a slider is attached to an inclined panel portion on the front of an operation box that is installed upright at the rear upper part of the washing tub, and a slider is attached so as to be able to slide up and down. An overflow port body made of an expandable bellows-shaped hose is erected at the bottom of the overflow chamber, and the upper end of this overflow port body and the slider are connected by a connecting member. A structure is provided in which the overflow port body is expanded and contracted by a sliding operation to change and adjust the overflow water level.

[Problems with Background Art] However, in the above conventional configuration, the connecting member is
Since it is in a state where it can move relatively freely up and down, front and back, and left and right, large lateral vibrations tend to occur in the connecting member when the slider is slid up and down. There was a problem in that the water could not be smoothly transmitted as the expansion and contraction of the overflow port body, that is, the vertical movement.

[Purpose of invention]

The present invention has been developed in view of the above circumstances, and its purpose is to provide a washing machine overflow device that can prevent horizontal vibration of the connecting member that connects the slider and the upper end of the overflow port body. .

[Summary of the idea]

The present invention connects a slider attached to a panel of an operation box and an upper end of an overflow port provided in an overflow chamber by a connecting member, wherein the connecting member is attached to a bottom wall of the operation box. The structure is characterized by the formation of a guide hole to prevent lateral wobbling.

[Example of idea]

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

Reference numeral 1 designates an outer box, inside which a washing tub 2 and a dehydration tub (not shown) are arranged.Although not shown, at the bottom of the washing tub 2, there is a stirring blade that is rotationally driven by a washing motor. A dehydration basket is provided in the dehydration tank and is rotated by a dehydration motor. Furthermore, an operation box 6 consisting of a bottom wall 3, a back wall 4, and an inclined front panel section 5 made of plastic is erected at the rear upper part of the washing tub 2. A washing timer 7 and a dewatering timer 8 are attached to both sides, and a water supply port 9 for selectively supplying water into the washing tub 2 and the dewatering basket is provided in the center. A front flange portion 3a is formed to hang down from the front end of the bottom wall 3 of the operation box 6 and hides the lower portion of the bottom wall 3. Reference numeral 10 denotes a drainage chamber which also functions as an overflow chamber and is formed at the rear right corner of the washing tub 2 so as to bulge out to the rear. An overflow port body 12 made of a bellows-shaped hose is supported and fixed to the. A cover 1 facing the upper end opening 12a of the overflow port body 12 is provided at the upper end of the support body 11.
1a is integrally molded, and a spring support member 13 is attached to the cover 11a and the bottom wall 3 of the operation box 6.
A compression coil spring 14 is interposed between the support body 11 and the support body 11, which is normally moved downward by the spring force of the compression coil spring 14 and is urged to form a hollow shape attached to the lower end of the overflow port body 12. The valve body is configured to close a drain port (none of which is shown) formed at the bottom of the drain chamber 10. The drain port is connected to a drain hose 15. In this case, even when the drain port is blocked by the valve body, the overflow port body 12 is communicated with the drain hose 15 through the hollow valve body. Then,
The support body 11 is moved upward against the spring force of the compression coil spring 14 when a drainage operation lever (not shown) attached to the panel portion 5 of the operation box 6 is operated. This allows the valve body to open the drain port. Note that 16 is an overflow strainer that is detachably attached to the front opening of the drainage chamber 10.

Now, 17 is the panel section 5 in the operation box 6.
It is a long groove integrally molded extending vertically approximately at the center of the opening, and guide walls 18 and 19 are formed on both sides of the opening to protrude downward, and an upper end is formed on the left side edge of the opening. A receiving protrusion 20 is formed that protrudes inward except for the upper and lower ends, and a receiving protrusion 21 is formed on the right edge of the opening that protrudes inward except for both the upper and lower ends. A plastic elastic piece 22 is disposed approximately in the center of the long groove 17 so as to extend vertically, and its lower end is bent leftward to form the tip of the lower end of the guide wall 19. The upper end is bent leftward to form the guide wall 1.
9, the elastic piece 22 forms the bottom of the long groove 17, and the elastic piece 22 forms the bottom of the long groove 17.
The upper end is formed into an insertion hole 23 with no bottom. Reference numeral 24 denotes a metal slider, which is approximately rectangular in shape, and has approximately U-shaped sliding contact portions 24a, 24a and 24b, 24b extending upwardly at the upper and lower ends of both left and right sides. At the same time, a mounting piece 24c is bent upward at the center, and a connecting piece 24d is bent downward at the center of the left side. Furthermore, sliding contact protrusions 2 are provided at the center of both the upper and lower ends.
4e and 24e are formed to protrude downward. Reference numeral 25 denotes a connecting member consisting of a connecting lever 26 made of plastic as the first member at the upper part and a connecting wire 27 made of steel wire as the second member at the lower part.
In the connecting lever 26, a support hole 26a is formed at the upper end, and a vertically elongated engagement hole 26a is formed at the lower end.
In addition, in the connecting wire 27, an approximately wedge-shaped engagement protrusion 27a is formed in a bent manner at the upper end, and an approximately annular engaging portion 27b is formed in a bent manner at the lower end. has been done. The support hole 26a of the connection lever 26 is rotatably supported in the front and rear direction by a support pin 29 attached to the connection piece 24d of the slider 24 via a pin pin 28. After the slider 24 supporting the connecting lever 26 is inserted into the long groove 17 from the insertion hole 23, it is slid downward, and the sliding contact protrusion 24
e, 24e are placed and supported on the upper surface of the elastic piece part 22, and the slider 24 is pressed upward by the elastic force of the elastic piece part 22, so that the upper surface of the sliding contact parts 24a, 24b touches the receiving protrusion 20. , 21, and as a result, the slider 24 comes into contact with the inner surfaces of the long grooves 17.
It is attached so that it can be slid up and down along the guide walls 18, 19 and the receiving protrusions 20, 21 and held at any sliding position above and below. Further, the lower end portion of the connecting lever 26 is inserted into a guide hole 3b formed in the bottom wall 3 of the operation box 6 and which is slightly longitudinally elongated. Further, in the connecting wire 27, the intermediate portion thereof is located at the cover 11 of the support body 11.
The engagement protrusion 27a at the upper end is inserted into the engagement hole 26b of the connection lever 26 while being elastically contracted, and the expansion restoring force causes the engagement projection to be inserted into the engagement hole 11b. Above the matching hole 26b,
It is removably elastically engaged with the lower edge, and the engaging portion 27b at the lower end is fitted into and engaged with the annular engaging groove 12b formed on the outer periphery of the upper end of the overflow port body 12. In this case, when the connecting lever 26 is moved to the uppermost operating position (solid line position in Figure 2) as described later, the tip of its lower end is located below the lower surface of the bottom wall 3 and above the lower end of the front flange portion 3a. It is set to be the location. 30 is a decorative plate attached to the front surface of the panel portion 5 of the operation box 6, and this plate has a vertically elongated guide hole 30a through which the support piece 24c of the slider 24 is inserted and projected upward. is formed, and the support piece part 2
A knob 31 is attached to the upper end of the guide hole 4c that protrudes from the guide hole 30a.

Next, the operation of this embodiment will be explained. Pick 3
When the slider 24 is slid to the uppermost operating position via the guide hole 3b, the connecting lever 26 is also moved to the uppermost operating position shown by the solid line in FIG. The overflow port body 12 is pulled against the contraction return force while being guided by the hole 11b, and the overflow port body 1
The upper end opening 12a of No. 2 is the position of the highest overflow water level shown by the solid line in FIG. Conversely, when the slider 24 is slid to the lowest operating position via the knob 31, the connecting lever 26 is also moved to the lowest operating position shown by the two-dot chain line in FIG. 2 while being guided by the guide hole 3b. ,
Accordingly, the connecting wire 27 descends while being guided by the guide hole 11b, and the overflow port body 12 is contracted by the restoring force, so that the upper end opening 12a of the overflow port body 12 reaches the lowest overflow level indicated by the two-dot chain line in FIG. This is the position of the water level. Therefore, when the slider 24 is slid to a desired position between the uppermost operating position and the lowermost operating position via the knob 31, the upper end opening 12a of the overflow port body 12 is adjusted to the maximum overflow water level and the minimum overflow water level. It can be adjusted to a desired overflow water level between the water level and the overflow water level, and when rinsing is performed by overflow while water is being supplied to the washing tub 2, excess water in the washing tub 2 is drained into the overflow port body 12. It flows into the upper end opening 12a, passes through the hollow valve body and the drain hose 15, and is discharged to the outside.

As described above, according to this embodiment, the connecting member 25 that connects the slider 24 and the upper end of the overflow port body 12 is composed of the upper connecting lever 26 and the lower connecting wire 27, and the connecting lever 26 is Bottom wall 3 of operation box 6
Since the connecting wire 27 is inserted and guided through the guide hole 3b formed in the cover 11a of the support body 11, the connecting wire 27 is inserted into the guide hole 3b formed in the cover 11a of the support body 11 and guided. It is possible to prevent horizontal vibration from side to side, and therefore, the vertical movement of the slider 24 can be smoothly transmitted by the expansion and contraction of the overflow port body 12, that is, by vertical movement, and the overflow port body 1 can be smoothly transmitted.
2 can be reliably operated vertically, eliminating loss of stroke.

In the above embodiment, the connecting member 25 is made up of the connecting lever 26 and the connecting wire 27, but it may be made up of a single connecting wire, for example. In this case, the bottom of the operation box 6 Instead of the guide hole 3b, a guide hole similar to the guide hole 11b may be formed in the wall 3 to prevent the connecting wire from swinging laterally.

In addition, the present invention is not limited to the embodiments described above and shown in the drawings; for example, the long grooves formed in the panel portion may extend in the left-right direction, etc., without departing from the gist. Of course, it can be implemented with appropriate modifications.

[Effect of idea]

As explained above, in the present invention, a guide hole is formed in the bottom wall of the operation box to guide the connecting member that connects the slider and the upper end of the overflow port body. Therefore, the overflow port body can be operated reliably and there is no loss of stroke, which is an excellent effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a two-tub washing machine, Fig. 2 is an enlarged vertical cross-sectional view of the main parts, and Fig. 3 is an illustration of the connecting portion between the connecting lever and the connecting wire. An enlarged sectional view, FIG. 4 is an exploded perspective view showing the long groove part and slider of the panel part, and FIG.
FIG. 6 is a cross-sectional view taken along the line - in FIG. 4 with the slider attached. In the drawing, 2 is a washing tub, 3 is a bottom wall, 3b is a guide hole, 4 is a back wall, 5 is a panel part, 6 is an operation box, 10
1 is a drainage chamber (overflow chamber), 11 is a support body, 11a is a cover, 11b is a guide hole, 12 is an overflow port body, 17 is a long groove part, 22 is an elastic piece part, 24 is a slider, 25 is a connecting member, 26 is a connecting lever (first member), 2
7 indicates a connecting wire (second member).

Claims (1)

[Scope of utility model registration request] An operation box having a panel section at the rear upper part of the washing tub, and an overflow port body formed in a lower part of the operation box that is movable up and down in the overflow chamber, which is slidably attached to the panel section. A connecting member connects the slider and the upper end of the overflow port body and moves the overflow port body up and down in accordance with the movement of the slider, A water overflow device for a washing machine, wherein a guide hole is formed in a bottom wall of the operation box to prevent horizontal vibration of the connecting member.