JPS6234545Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a washing machine, particularly to the structure of its drainage device.

[Prior art]

Conventionally, an L-shaped groove is formed from the side wall of the washing tank to the center of the bottom wall, and the open side of the groove inside the washing tank is covered with a strainer plate having many through holes. There was one where a drain was installed and the drain was covered with a valve that could be opened and closed. If you use hot water to wash this product, the softening of the tank due to the high temperature and the water pressure will open the grooves, creating a gap between the strainer plate and the strainer plate, which may come off when it comes into contact with the items being washed. There is.

〔the purpose〕

In order to solve the above-mentioned drawbacks of the conventional method, this invention provides a groove on the side wall of the washing tank and a drain port in the center of the bottom wall, and the lower end of the groove and the drain port are installed on the lower surface of the bottom wall of the washing tank. Provide a passage connecting the
This prevents the passage from opening as in the past. Further, although the bottom wall located between the drain port and the groove partially blocks the upper surface of the passage, the passage can be integrally molded with the washing tank regardless of this.

〔Example〕

10 will be explained in detail below according to the drawings.
is a washing tank, which is integrally molded from synthetic resin with an open upper surface and a substantially rectangular plane. A groove 11 is formed at the corner of the side wall of the washing tank 10 by recessing the inner surface outward over the entire length in the vertical direction, and a drain port 12 is formed at the lowest point of the bottom wall of the washing tank. are doing.

The groove 11 has a drainage port 12 along the bottom wall at the lower part.
Hemm, it's a little longer, but groove 11 and drain port 1
2, there is a bottom wall 10a that is continuous on the same plane as the bottom walls of other parts.

The lower end of the groove 11 and the lower part of the drain port 12 are connected by a gutter-like passage 13 provided on the lower surface of the bottom wall of the washing tank 10. This gutter-like passage 13 has a width that is equal to or smaller than the width of the drain port 12 and the groove 11, respectively, at the portions vertically facing the drain port 12 and the groove 11.
Further, the bottom wall 10a facing the trough-like passage 13 is inclined so that its lower surface rises once it reaches the groove 11, and both inner surfaces of the trough-like passage 13 adjacent to the bottom wall 10a are sloped so as to rise once they reach the groove 11. is open. The trough-like passage 13 has its bottom wall inclined so as to become lower toward a position facing the lower end of the groove 11, and is provided with a through hole 14 at its lowest position.

Therefore, the gutter-like passage 13 can be molded integrally with the washing tank 10. As shown in FIG. 4, a mold 15 for forming the inner surface of the washing tank has a protrusion 15a passing through the drain port 12, and a protrusion 1 for forming the inner surface of the groove 11.
5b, respectively, and a recess 16 for molding the outer surface of the gutter-like wall 13 in a mold 16 for molding the outer surface of the washing tank.
a, a recess 16b forming the outer surface of the wall of the groove 11 is provided, and both end portions of the trough-like passage 13 are formed between the lower ends of the protrusions 15a and 15b and the recess 16a. A protrusion 1 is provided at the lower part of the bottom wall 10a.
The sliding mold 15c slidably supported by the mold 5b is inserted, and the middle part of the gutter-like passage 13 is formed between the sliding mold 15c and the recess 16a, and the upper part is formed between the sliding mold 15c and the mold 15. The bottom walls 10a are respectively molded. When the mold 15 is moved, the sliding mold 15c can be slid into the groove 11 and removed from below the bottom wall 10a.

Reference numeral 17 denotes a drainage strainer having a large number of through holes, which is removably fitted to cover the drainage port 12. 1
8 is an overflow strainer with many through holes, and groove 11
It is removably attached to cover the open surface inside the washing tank.

V is a valve means, which consists of a cylinder 19 with both ends open and a bellows platform 2 connected to the upper end thereof and which is vertically expandable and retractable. The cylinder 19 is supported in a vertically slidable manner within the groove 11, with an opening at its lower end facing the through hole 14, and a rubber packing 20 provided around the lower end being pressed against the bottom wall of the gutter-like wall around the through hole 14. There is. 22 is a pulsator rotatably provided on the bottom wall of the washing tank 10.

When rinsing items to be washed while supplying water into the washing tank 10, the water that has exceeded the upper end of the bellows hose 21 passes through the upper end opening of the bellows hose 21, through the hose and the tube 19, and is discharged from the through hole 14 to the outside. is discharged to. The water level in the washing tank can be changed by expanding and contracting the bellows hose 21 using a suitable operating member (not shown). Further, when the cylinder 19 is raised using another operating member (not shown), the rubber packing 20 separates from the periphery of the through hole 14, and the water in the washing tank is discharged from the drain port 12 through the gutter-like wall 13 to the outside. can be done.

〔effect〕

As described above, the present invention provides a drainage port at the bottom of the washing tank and a vertically extending groove in the side wall thereof, and the part of the bottom wall of the washing tank located between the groove and the drain port is provided with a groove. A gutter-like passage connecting the drain and the groove is provided along the bottom wall of the gutter so as to rise upwardly, and a gutter-like passage connecting the drain and the groove is provided at the bottom of the gutter-like passage corresponding to the lower end of the groove. Since a through hole opening to the outside is provided and a valve means is attached to the through hole, opening of the gutter-like passage by hot water and water pressure is prevented by the bottom wall of the above part. Even if the bottom wall partially blocks the upper surface of the gutter-like passage, the gutter-like passage can be integrally molded with the washing tank, and it is possible to provide a washing machine that is inexpensive and can be used with peace of mind. It is.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view of the main parts of a washing machine that embodies this idea, Figure 2 is a horizontal sectional view of the main parts of Figure 1, Figure 3 is a sectional view taken along the line 3-3 in Figure 1, and Figure 4. FIG. 2 is a vertical cross-sectional view of a main part of a mold for a washing tank. 10...Washing tank, 11...Groove, 12...Drain port, 13...Gutter-like passage, 14...Through hole, V...Valve means.

Claims (1)

[Scope of utility model registration request] A drainage outlet is provided at the bottom of the washing tank, and a groove extending vertically in the side wall is provided independently, and the part of the bottom wall of the washing tank located between the groove and the drain opening is provided with a groove so as to rise once. A gutter-like passage connecting the drain and the groove is provided along the bottom wall, the drain, and the groove, and a through hole opening to the outside is provided at the bottom of the gutter-like passage corresponding to the lower end of the groove. established,
A washing machine equipped with valve means for opening and closing the through hole in correspondence with the through hole.