JPH0131183Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a washing machine in which water can be supplied into the washing tub from above and below, and particularly relates to a lower water supply structure thereof.

(Prior art) Generally, this type of washing machine has an upper water supply port that opens above the washing tub and a lower water supply port that opens downward, and has a large number of water passages on the inner surface of the washing tub. An overflow filter with a water hole is installed, and water is simultaneously supplied into the washing tub from both water inlets and water is allowed to flow outside through the overflow filter, allowing for efficient overflow rinsing. Since the water supply channel that leads water from the side to the lower water supply port was formed in the washing tub, there was a drawback that the shape of the washing tub was complicated, and it was not very good from the standpoint of design and manufacturing and cost.

(Purpose) This proposal was made in view of this point, and the lower water supply pipe is housed and arranged by using the space existing on the back side of the overflow filter, and this lower water supply pipe allows water to flow from the water source side to the lower water supply port. By guiding this, it is possible to eliminate the need for forming a water supply channel in the washing tub, prevent the formation from becoming complicated, and provide a product that is favorable in terms of design, manufacturing, cost, etc.

(Example) An example of the present invention shown in the drawings will be described in detail below.

1 is the main body of a two-tank washing machine, which is equipped with a tub body in which a washing tub 2 and a dewatering tank are arranged side by side by integral molding;
A panel section consisting of a panel stand 3 and a panel 4 is installed at the rear part of the upper surface. Reference numeral 5 denotes a concave groove formed continuously from the top of the side surface to the center of the bottom surface in the rear corner of the washing tub 2. The bottom opening of the concave groove 5 is closed by a cover 6, and the side opening is closed by an overflow filter 7. Obstruction. The overflow filter 7 is removably attached to the inner surface of the washing tub 2 so as to close the side opening of the groove 6, and has a slit-shaped guide hole 8 extending vertically in the center of the front surface. A large number of water holes 9 are formed on both sides of the hole 8. Also, a plurality of holes are bored in the lower end of the overflow filter 7,
These holes form a lower water supply port 10.

11 is the guide hole 8 of the overflow filter 7
A water level adjustment lever 12 is installed in a vertically slidable manner to maintain an arbitrary position when not operated, and 12 is an overflow located in the concave groove 6, whose lower end is connected to the external drainage channel side and whose upper end is fitted into the water level adjustment lever 11. It is a tube that is connected to a bellows-shaped telescopic hose. The water level adjustment lever 11 has its knob 11a located in front of the overflow filter 7, and the knob 11a is located in front of the overflow filter 7.
By moving up and down with a, the overflow pipe 12 is expanded and contracted, and the opening position of its upper end is changed. Therefore, excess water in the washing tub 2 passes through the overflow filter 7 and overflows from the overflow pipe 12 to the outside, and the water level in the washing tub 2 is maintained at the set water level. 13 is a substantially L-shaped lower water supply pipe attached to the back side of the overflow filter 7 with a screw 14, the upper end of which is expanded to form a socket 15 that opens near the upper end of the overflow filter 7; On the other hand, the lower end portion has an open front surface and is in communication with the lower water supply port 10.

16 is a water supply joint provided on the panel 4, to which a water supply hose (not shown) is connected. Reference numeral 17 denotes a washing side water supply channel provided on the lower side of the panel stand 3. An upper water supply port 18 is formed at one end of the water supply channel 17, and this water supply port 18 is opened above the washing tub 2. Reference numeral 19 indicates a dewatering side water supply channel provided on the lower side of the panel stand 3, 20 indicates a flexible switching hose whose one end is connected to the water supply joint 16, and 21 indicates a connection between the free end of the switching hose 20 and the washing side supply channel 17 and the dewatering side. The water supply switching lever 22 is a water supply pipe that is selectively positioned opposite to the water supply channel 19, and is a water distribution pipe attached to the panel stand 3, with one end opening at the bottom of the washing side water supply channel 17 and the other end opening into the lower water supply pipe 13. It opens facing 15.

In addition, in the figure, 23 is a power switch, 24 is a water flow selection switch, 25 is a washing time selection switch, 2
6 is a dehydration selector switch, and 27 is a drain lever.

In the above configuration, with the free end of the switching hose 20 now facing the washing side water supply channel 17,
When the water faucet is opened and water is supplied from the water supply hose to the water supply channel 17 via the water supply joint 16 and the switching hose 20, part of the water flows through the water supply channel 17 and is supplied into the washing tub 2 from the upper water supply port 18, and the rest is The water passes through the water distribution pipe 22 and the lower water supply pipe 13 to the lower water supply port 1.
Water is supplied into the washing tub 2 from 0, and in this way, water is supplied to both the upper and lower parts at the same time.

In the present invention, the lower water supply pipe 13 may be housed in a space (groove 5) existing on the back side of the overflow filter 7, or may be attached to the washing tub 2 side. It is also possible to provide a water diversion port on the bottom of the water supply channel 17 and to directly oppose the water inlet 15 of the lower water supply pipe 13 to this water diversion port. In this way, the water distribution pipe 22 can be omitted. In short, in this case, the lower water supply pipe 13
Any configuration may be used as long as it is located in the space on the back side of the overflow filter 7 and can lead water from the water source side to the lower water supply port 10.

The position where the lower water supply port 10 is formed is not limited to the lower end of the overflow filter 7, but may be formed at the boundary between the filter 7 and the cover 6 or the wall of the washing tub 2, or may be formed on the cover 6. . Further, the shape and structure of the space on the back side of the overflow filter 7 are not particularly limited.

(Effects) As described above, according to the present invention, the lower water supply pipe is housed and arranged using the space existing on the back side of the overflow filter, and water is guided from the water source side to the lower water supply port by the lower water supply pipe. This eliminates the need to particularly form a water supply channel in the washing tub, prevents the washing tub from becoming complicated in shape, and is advantageous in terms of design and production, cost, etc., and is an extremely useful idea in practice.

[Brief explanation of drawings]

Figure 1 is an external perspective view of the proposed washing machine, Figure 2 is a sectional view of the main parts of the same, Figure 3 is an explanatory diagram of the relationship between the main parts of the same, and Figures 4 and 5 are the upper and lower water supply pipes installed. It is a front view and a rear view of an overflow filter. 2: Washing tub, 7: Overflow filter,
9: Water hole, 10: Lower water supply port, 13: Lower water supply pipe.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. An overflow filter having an upper water supply opening opening above the washing tub and a lower water supply opening opening downward, and a large number of water passage holes on the inner surface of the washing tub. In a washing machine in which water is supplied into the washing tub from both water supply ports and overflows to the outside through an overflow filter, a lower water supply pipe is housed in the back space of the overflow filter, and this lower water supply pipe allows water to be supplied from the water source to the lower part. A washing machine characterized by being configured to guide water to its mouth. 2. The washing machine according to claim 1, wherein the lower water supply port is formed at the lower end of the overflow filter.