JPH0141421Y2 - - 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 long hole extending vertically is formed in an inclined panel section on the front side of an operation box installed upright at the rear upper part of a washing tub. A mounting plate having a long hole corresponding to the long hole is arranged parallel to the panel part, and an operating shaft inserted and guided through the long hole of the panel part and inserted into the long hole of the mounting plate. A slider formed by screwing a guide pin onto the mounting plate is placed on the top surface of the mounting plate, and the lower end of the guide pin is pressed into sliding contact with the back surface of the mounting plate to place the slider on the top surface of the mounting plate. A plate spring for elastic contact is attached, and the slider is connected to the upper end of the overflow spout body, which is a bellows-shaped hose installed at the bottom of the overflow chamber of the washing tub, by a connecting wire, and the sliding A configuration has been proposed in which the overflow port body is expanded and contracted by sliding the child up and down to adjust changes in the overflow water level.

[Problems with background technology]

The above conventional configuration requires a mounting plate, a guide pin, a leaf spring, etc. in order to slidably attach the slider to the operation box, so it has a large number of parts, is troublesome to assemble, and is generally expensive. There is a problem.

[Purpose of invention]

The present invention was developed in view of the above circumstances, and its purpose is to reduce the number of parts and simplify assembly when the slider for moving the overflow port body up and down is slidably attached to the operation box. The purpose of the present invention is to provide a washing machine overflow device that can be made at low cost.

[Summary of the idea]

In the present invention, a long groove is formed in the panel portion of the operation box, a slider is disposed within the long groove so as to be movable along both side edges of the opening of the long groove, and the slider is elastically moved. The present invention is characterized in that an elastic piece part is integrally molded with the panel part so as to form the bottom of the long groove part, so that the slider comes into contact with both sides of the opening of the long groove part by pressing the elastic piece part.

[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 curved 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 bent at the upper end, and an approximately annular engaging portion 27b is bent at the lower end. ing. The support hole 26a of the connection lever 26 is rotatably supported in the front-back 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 of the connection lever 26 is connected to the bottom wall 3 of the operation box 6.
The guide hole 3b is inserted into a slightly longitudinally long guide hole 3b formed in the . Furthermore, in the connecting wire 27,
The middle part is the cover 1 on the support 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 engagement protrusion 27a is inserted into the engagement hole 26b of the connection lever 26 by the expansion restoring force. It is removably elastically engaged with the upper and lower edges of the matching hole 26b, and the engaging part 27b at the lower end is fitted and engaged with the annular engaging groove 12b formed on the outer periphery of the upper end of the overflow port body 12. There is. 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. In addition, 3
0 is a decorative plate attached to the front surface of the panel section 5 of the operation box 6, and this includes the slider 24.
A long guide hole 30a is formed at the top and bottom through which the support piece 24c is inserted and projected upward, and a knob 31 is attached to the upper end of the support piece 24c that protrudes from the guide hole 30a.

Next, the operation of this embodiment will be explained. Pick 3
1 to the uppermost operating position, the connecting lever 26 is also moved to the uppermost operating position shown by the solid line in FIG. The upper end opening 1 of the overflow port body 12 is pulled against the force.
2a is the position of the highest overflow water level shown by the solid line in Figure 2. 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. is lowered and the overflow port body 12 is contracted by the restoring force, and the upper end opening 12a of the overflow port body 12 becomes the position of the lowest overflow water level shown by the two-dot chain line in FIG. Therefore, pick 3
1 to a desired position between the uppermost operating position and the lowermost operating position, the upper end opening 12a of the overflow port body 12 moves between the highest overflow water level and the lowest overflow water level. The overflow water level can be adjusted to the desired overflow water level, and when rinsing is performed by overflow while water is being supplied into the washing tub 2, excess water in the washing tub 2 is discharged into the overflow port body 12 through its upper opening 12a. The water flows into the hollow valve body and is discharged to the outside through the drain hose 15.

According to this embodiment as described above, the following effects can be obtained. That is, a long groove part 17 is integrally molded in the plastic panel part 5 of the operation box 6 so that the elastic piece part 22 forms the bottom part, and the long groove part 17 is pressed by the elastic force of the elastic piece part 22 into the long groove part 17. Receiving protrusions 2 on both side edges of the opening of the long groove portion 17
Since the slider 24 that contacts the 0 and 21 and slides up and down is attached, there is no need for a conventional mounting plate, operating shaft, guide pin, etc., the number of parts is small, and assembly is easy. Generally, it can be manufactured at low cost. In addition, the slider 24 and the overflow port body 1
The connecting member 25 that connects the upper end of the connecting wire 27 with the upper end of the connecting lever 26 is composed of an upper connecting lever 26 and a lower connecting wire 27.
a is removably connected to the engagement hole 26b at the lower end of the connection lever 26 by elastic engagement, so that the slider 2 to which one end of the connection lever 26 is attached
4 to the panel part 5, and this panel part 5 was attached to the bottom wall 3 and the back wall 4 to complete the assembly of the operation box 6, and the assembled operation box 6 was attached to the rear upper part of the washing tub 2. It is possible to use an assembly method in which the upper end of the connecting wire 27 is later connected to the lower end of the connecting lever 26, resulting in excellent manufacturability. and connect the lower end of the connecting lever 26 to the drain chamber 10.
The upper end of the connecting wire 27 can be connected to the lower end of the connecting lever 26 in a state where it is largely protruded inward, and the connecting operation is extremely simple. Further, when the connecting lever 26 is moved to the uppermost operation position, the tip of its lower end touches the bottom wall 3 of the operation box 6.
Since the lower end of the connecting lever 26 is positioned below the lower surface and above the lower end of the front flange portion 3a, when transporting or storing the operation box 6 after assembly is completed, the lower end of the connecting lever 26 is located below the front flange portion 3a. It is possible to reliably prevent a human body, an object, etc. from colliding with the lower end of the slider 24 and causing breakage or damage due to the lower end being hidden by the slider 24. Even if the connection lever 26 is moved, the lower end of the connection lever 26 will not sink into the operation box 6. In addition, a guide hole 11b is formed in the cover 11a of the support body 11, and the middle part of the connecting wire 27 is inserted through the guiding hole 11b to be guided, so that the connecting wire 27 is prevented from lateral deflection in the front and back and left and right directions. Therefore, the overflow port body 12 can be operated vertically and reliably, and loss of stroke can be eliminated.

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, for example, a single connecting wire. 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, without departing from the scope of the invention. Of course, it can be implemented with appropriate modifications.

[Effect of idea]

As explained above, in the present invention, a long groove part is integrally molded in the panel part of the operation box so that the elastic piece forms the bottom part, and a slider is slidably mounted in this long groove part. It has a small number of parts, is easy to assemble, and has practical effects such as being inexpensive overall.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view of a two-tub washing machine, Fig. 2 is an enlarged longitudinal 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, 3a is a front flange, 4 is a back wall, 5 is a panel, 6 is an operation box, 10 is a drain chamber (overflow chamber), 11 is a support, 1
1a is a cover, 11b is a guide hole, 12 is an overflow port body, 17 is a long groove portion, 22 is an elastic piece portion, 24 is a slider, 25 is a connecting member, 26 is a connecting lever (first member), 27 is a A connecting wire (second member) is shown.

Claims (1)

[Scope of utility model registration request] A washing tub that is equipped with an operation box having a panel section at the rear upper part and an overflow port body that is movable up and down in the overflow chamber formed at the lower part of the operation box, wherein the long groove section is formed in the panel section. a slider disposed within the long groove and movable along both side edges of the opening of the long groove; and a slider integrally molded with the panel portion so as to form the bottom of the long groove and elastically move the slider. an elastic piece that connects the slider to the upper end of the overflow port body and presses the slider to contact both side edges of the opening of the long groove; A washing machine overflow device comprising: a connecting member that moves the overflow port body up and down.