JPH0321743Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water supply switching device for switching water supply between a washing tank and a dewatering tank in a two-tank washing machine.

[Conventional technology and its problems]

There are various conventional water supply switching devices for such washing machines. As an example, Utsukai Showa 59-
As shown in No. 178988, the connection part of the water supply switching pipe that connects to the end of the hose joint where the end of the water supply hose is attached is formed in a universal joint mechanism, and a slide plate that is moved by a knob separately exposed on the operation panel is used to connect the water supply switching pipe to the end of the hose joint. There is one that switches the discharge direction of the water supply switching pipe. A water receiver is placed below the water supply pipe, and when the user of the washing machine wants to supply water to the washing tank side for washing and rinsing in the washing tank side, by sliding the knob to the left, the slide plate moves and the water supply pipe opens. rotates, and its discharge port faces toward the washing tank side of the water tray, and water is supplied to the washing tank side. Also, when you want to rinse in the dehydration tank side, slide the knob in the opposite direction, and the outlet of the water supply pipe will face the dehydration tank side of the water tray, and water will be supplied to the dehydration tank side.

However, in this configuration in which the water supply pipe is rotated via a universal joint, a mechanical seal (such as an O-ring) is required to prevent water from leaking from the connection between the hose joint and the water supply switching pipe when water pressure is high. As a result, the number of parts is large, the structure is complex, assembly workability is poor, and costs are high.

As a solution to these shortcomings, Jikosho
As shown in No. 57-42390, instead of the water supply switching pipe, a water supply switching hose with a bellows-shaped flexible pipe in the middle is used, and by bending this water supply switching hose with a hook-shaped switching lever, the water can be switched off. A device for changing the direction of discharge into a receiver was proposed by the applicant of the present invention. According to this, a mechanical seal is not required, the number of parts is small, water leakage does not occur, and it can be manufactured at low cost.

However, the water supply switching device of Utility Model Publication No. 57-42390 bends and supports the tip of the flexible water supply hose at the tip of the switching lever, so the load on the switching lever is large, and the tip of this switching lever is attached to the shaft. Since the lever acts as a lever, it only draws an arc around the tip and can only ensure a small width of slide in the lateral direction.

Therefore, as a water supply switching device that ensures a wide range of switching operation and improves operability by reducing the load on the switching lever etc., the water supply switching pipe with a flexible center part can be slid horizontally above the water receiver. In such a structure, the discharge port 6a at the tip of the water supply switching pipe 6 is supported by the elongated piece 7c of the slide plate 7, and the mounting position is restricted, and the mounting position is regulated by the elongated piece 7c of the slide plate 7. Since a space is secured in the water supply switching pipe so that the sliding of the water supply switching pipe is not obstructed, if the water supply pressure or water supply amount is abnormally high, the water supply switching pipe 6 may be closed due to high water pressure as shown in Figure 5. The flexible portion 6b may stretch, and as a result, the lower discharge port 6a may lift up and come off the opening 2a above the water receiver 3, causing problems in water supply.

The object of the present invention is to provide a water supply switching device which eliminates the above-mentioned disadvantages and prevents the water supply switching pipe from coming off from the water receiver even if the water supply pressure becomes high or the water supply amount becomes abnormally large.

[Means for solving problems]

In order to achieve the above object, the present invention provides a water supply switching pipe whose base is fixed and whose central part is flexible, inside the box formed by the operation panel and panel base on the upper part of the outer box of the washing machine. In a water supply switching device for a washing machine in which the pipe discharges water into a water receptacle located below via a flexible section, the flexible section extends below the bending point of the flexible section of the water supply switching pipe. The gist of the present invention is to provide a trapezoidal support stand integrally projecting upward from the panel base to prevent the above-mentioned panel base.

[Effect]

According to the present invention, the water supply direction can be freely and completely switched by moving the tip of the flexible water supply switching pipe inside the box to the left and right using the slide plate. Even if the flexible portion of the water supply switching pipe stretches when the amount of water supplied is extremely large, it will collide with the support base below and will not extend any further.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

Fig. 1 is a longitudinal sectional side view of an embodiment of the water supply switching device for a washing machine according to the present invention, and Fig. 2 is an exploded perspective view of the same.
1 is an operation panel, and 2 is a panel base, which are held on top of the outer box 4 of the washing machine, as shown in FIG. 4, and are assembled together to form a box body. A short double cylinder consisting of an outer cylinder 1a and an inner cylinder 1b is provided protruding from the back side of the operation panel 1, and the outer cylinder 1a is provided with a bellows-shaped flexible part 6b in the center, and a bend pipe having a substantially right angle is formed at the tip. The root portion of the water supply switching pipe 6 having the discharge port 6a formed therein is fitted.

On the other hand, the center of the bottom of the panel base 2 was made to protrude upward to form a rectangular platform 2c, and a horizontally long opening 2a surrounded by a ribbed side wall 2b was formed therein.

Then, the distal end outlet 6a of the water supply switching pipe 6 is inserted into the horizontally elongated opening 2a, and the water supply switching pipe 6 is bent and supported on the upper surface of the platform 2c of the panel base 2 so as to be horizontally slidable.

Further, the support portion 2d is formed directly or at a distance below the bent portion of the flexible portion 6b of the water supply switching pipe 6. As an example, the support portion 2d is integrally projected upward from the panel base 2 in a trapezoidal shape.

3 in the figure is a water receptacle forming left and right water channels 3a and 3b divided into a washing tank side and a dehydration tank side.The side wall of this water receptacle 3 is raised upward and the bottom of the opening 2a is inserted. A water receiver 3 is coupled to the back surface of the panel base 2.

In addition, two pairs of locking claws 1d are provided on the back surface of the operation panel 1 so as to protrude from each other, and the locking claws 1d are used to engage the frame body 7d.
supports so that it can be slid laterally. The slide plate 7 is constructed by integrally forming a knob 7b on the upper side of the frame body 7d and an elongated piece 7c having a U-shaped cutout at the lower end to form a crotch portion 7a.

The inner cylinder 1b is shorter than the outer cylinder 1a, and a locking step 8a at the end of the hose joint 8 engages with the end thereof, and a collar plate 8b protrudes from the outer periphery of the hose joint 8.
By abutting against the upper end opening periphery of the inner and outer cylinders 1a and 1b of the operation panel 1, the hose joint 8 is attached to the operation panel 1 so as to be rotatable through 360° using the inner cylinder 1b as a locking ring. Reference numeral 9 in the figure is a water supply hose that connects the hose joint 8 to a water faucet (not shown).

Next, to explain the usage and operation, when the user of the washing machine washes clothes in the washing tank 5, as shown in FIG. While being moved, the frame 7d moves laterally, and the elongated piece 7c also moves.
As a result, the distal end discharge portion 6a of the water supply switching pipe 6, which is sandwiched at its distal end, slides along the horizontally long opening 2a. This sliding is performed while the water supply switching pipe 6 is bent and supported on the stand 2c, and is performed in accordance with the bending and stretching of the bellows-shaped flexible portion 6b of the water supply switching pipe 6.

As a result, the discharge port 6a of the water supply switching pipe 6, which was on the dewatering tank side waterway 3b of the water receiver 3, moves to the left above the washing tank side waterway 3a, and passes from the water supply hose 9 through the water supply joint 8. The incoming water is supplied to the washing tank side.

In addition, when rinsing is performed in the dehydration tank, by sliding the knob 7b of the slide plate 7 to the right,
The discharge port 6a of the water supply switching pipe 6 is moved to the right above the water channel 3b on the dehydration tank side of the water receiver 3, and water is supplied to the dehydration tank side.

Furthermore, even if the flexible portion 6b of the water supply switching pipe extends when the water pressure is high or the amount of water supplied is extremely large, it hits the support portion 2d, preventing further downward extension and lifting the discharge port 6a. It will not come off from the opening 2a of the panel base.

Note that the washing machine provided with the support part 2d of the present invention is not limited to the above-mentioned embodiment, but can be applied to any type that uses a water supply switching pipe with a flexible part formed in the middle. It is possible.

[Effect of idea]

As described above, in the water supply switching device of the present invention, as the water supply pipe slides in the horizontal direction of the slide plate,
The discharge port can be moved from side to side above the water tray without being subjected to unreasonable loads, making it possible to switch the water supply easily and reliably. Even if the water supply is high or the number of water supply vehicles is extremely large, the discharge port of the water supply switching pipe will not come off the water receiver and cause problems in water supply.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional side view of an embodiment of the water supply switching device for a washing machine of the present invention, Fig. 2 is an exploded perspective view of the same, Fig. 3 is a longitudinal cross-sectional view of the water receptacle of the same, and Fig. 4 is a longitudinal sectional view of an embodiment of the water supply switching device of the washing machine of the present invention. The perspective view and FIG. 5 are longitudinal sectional side views showing the state of the conventional water supply switching pipe when the water pressure and water volume are extremely large. 1... Operation panel, 1a... Outer cylinder, 1b... Inner cylinder, 1d... Locking claw, 2... Panel base, 2a
...Horizontal opening, 2b...Side wall, 2c...Base, 2
d...Support part, 3...Water receiver, 3a, 3b...Waterway, 4...Outer box, 6...Water supply switching pipe, 6a...Discharge port, 6b...Flexible part, 7...Slide plate ,7a
...crotch, 7b... knob, 7c... elongated piece, 7d
... Frame body, 8 ... Hose joint, 8a ... Stepped section, 8
b...Brim plate, 9...Water supply hose.

Claims (1)

[Scope of utility model registration request] A water supply switching pipe with a fixed base and a flexible central part is installed inside the box formed by the operation panel on the top of the outer box of the washing machine and the panel base, and this water supply switching pipe discharges water to the water receiver located below. In a water supply switching device for a washing machine that is slidable laterally via a flexible section, the flexible section of the water supply switching pipe has a flexible section that prevents the flexible section from extending below the bending section. A water supply switching device for a washing machine, characterized in that it is provided with an integrally trapezoidal support stand projecting upward.