JPS59197292A - Drain change-over apparatus of washer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a drainage switching device for washing machines used in general households.

Structure of the conventional example and its problems In the conventional drainage switching system of a washing machine, the drainage switching system forcibly drains water using a pump, as shown in FIGS. A rotary drain lever 34 is fitted, and a lever 36 is attached to the shaft portion 35.An L-shaped arm 37 is formed at one end of the drain lever 34. A drain string 38 was attached to the tip of the drain valve (not shown) to open and close the drain valve (not shown).
The direction (washing, rinsing, draining) is changed, and during washing, the drain valve closes and the pump for forced drainage (not shown) does not operate. The drain valve was closed and the pump was working only to drain the water used for rinsing.

When the knob 36 was adjusted to the drain level, the drain valve was opened and the pump was activated to drain the water. - The pump operation switch 39 (is the cam 40 of the drain lever 34).
Operated by. At this time, the L-shaped arm 37 of the drain lever 34 must have the necessary stroke to open the drain valve by the washbasin-drain opening 36 and the rotation of the drain lever 34. Therefore, in order to account for loss in washing machines, the drain lever 34 must have a strophe of 20 mm or more, and the fitting part of the drain string 38 must be at a point that is significantly offset from the center of the shaft of the drain lever 34. Ta. When the trench 36 is aligned with the rinsing position, the L-shaped arm 37 rotates in the opposite direction, and since sufficient space for rotation is required within the panel 32, the panel 32 and operation panel 33 of the washing machine are made smaller. There were limits to how compact the design could be.

OBJECTS OF THE INVENTION The present invention provides a compact drainage switching section for operating a drainage valve and a pump operation layer, which eliminates the need for large pipes, louvers, and operation panels as in the prior art.

Structure of the Invention The present invention is equipped with a sliding movable lever that rotates a rotary lever that opens and closes a drain valve, and a drain pump control switch that is operated by this movable lever. This device operates the drain valve and drain pump in the process, and the overall structure is compact and the thickness is small, reducing the amount of packaging required at the distribution stage.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 to 8.

The main body (not shown) has a pile 1 at the top, an elongated hole 2 is opened in the upper surface of this panel 1, and a movable lever 4 is fixed to the lower end of the operating knob 3 inserted into the elongated hole 2. , can be slid in the direction of the elongated hole 2 using the operating knob 3. One end of the movable lever 4 is provided with a notch 6 in the cylindrical direction and a notch 6 in the lateral direction to form an L-shaped notch. The other end of the movable lever 4 is provided with a switch pusher 8 for operating a pump operation switch 7 housed in the panel 1.
The drain pump 10 is controlled and controlled via the actuator 9 of the pump operation switch 7. A boss 12 is formed in the movable lever 4 to fit the tip of the operating lever 3 into the boss 12 for connecting the 11 pump operation switches 7 to the panel 1. Next, the bearing part 14 of the drainage string 13 provided in a part of the panel 1 will be explained. A 1D rotating lever 16 is rotatably housed in the bearing portion 14, and the rotating lever 16 has a shaft 17 that serves as a pivot point, a shaft 18 through which the drainage string 13 can be accessed, and a movable lever 4. Notch 5゜6
A shaft 19 is provided which is slidably engaged with the shaft 17 which serves as a pivot point.
is inserted into the bearing hole 15 of the bearing part 14 and the rotating lever 16 rotates, but the rotational force is such that the shaft 19 is pushed by the lateral movement of the movable lever 4 and rotates. .

At this time, the shaft 18 of the drain string 13 also moves, causing the drain string 13 to move in the vertical direction.Since one end of the drain string 13 is connected to the drain valve 20, the drain valve 20 opens and closes. be. FIG. 7 is a detailed view of the rotating lever 16.
Washing, rinsing, according to Figures 4, 5, 6, and 7.
The operation of the rotary lever 16 during drainage will be explained. FIG. 4 shows a case where the operating knob 3 is located in the middle of the elongated hole 2, at a point 21.

At this time, the shaft 19 of the rotating lever 16 is located below the vertical notch 5 of the L-shaped notch at one end of the movable lever 4. In this state, the shaft 19 has a gap 23 between it and the upper surface 22 of the horizontal notch 6, and the drainage string 1
The shaft 18 of 3 is located at the lowest position, and the switch pusher 8 at the other end of the movable lever 4 does not push the actuator 9, so the circuit is closed and the drain pump 1Q is operated, so the drain valve 20 is closed. The operation of this drainage pump 10 provides a rinsing process.

Next, Figure 5 (showing the state when water is being drained)
Turn 3 has been moved to the right and is located at point 24. At this time,! III] 19 is pressed against the left end surface 26 of the vertical notch 5 of the movable lever 4, and the rotary lever 16 rotates about the shaft 17 as shown in the figure.

In this case, it is necessary that the upper end of the shaft 19 is located above the upper surface 22 of the lateral cutout 6 of the movable lever 4 by a distance 26, and in FIG. Although it has a circular cross section, it is also effective if it is made into an elliptical shape. In the above state, the shaft 18 of the drain string 13 is in the uppermost rotational position, so water is drained by opening the drain valve 20, and the pump operation switch 7 is also in the fourth position.
In a state similar to that shown in the figure, the drainage pumps 1o and 1i operate to drain water.

Next, Figure 6 is a diagram of the laundry when washing, and the operation knob 3 is outside 11.
It is located at point 28 of 11. When the operating knob 3 is moved to the left from the state shown in FIG. 5 to the state shown in FIG. 27, the rotating lever 16 rotates to the left around the shaft 17. At this time, drainage string 13
When the shaft 18 crosses the vertical center line of the shaft 1Y, the force of the drain valve 20 causes it to rotate to the state shown in FIG. Further, in FIGS. 4 to 6, the point 28 where the operating hole is moved is the state at the time of washing. At this time, since the rotating lever 16 has a groove that cannot be rotated to the left, the shaft 19 enters into the horizontal notch 6 of the movable lever 4, and the movable lever 4 is moved to the left. . At this time, the pump operation switch 7 or the switch pusher 8 is activated and the circuit is turned off, causing the drain pump 10 to become inoperable.

In FIG. 7, 29 is a stroke for opening the drain valve 20, 30 is a stroke necessary for operating the drain pump, and 31 is a stroke for opening the drain valve 20.
is the stroke of the drainage string 13.

FIG. 8 is a circuit diagram of the drainage pump 10 and the drainage pump operation switch 7.

Effects of the Invention As described above, this cape replaces the conventional rotary operating knob to switch the drain with a sliding type, making it possible to move the attachment part of the drain string during washing, rinsing, and draining. The space inside the panel is sufficient for draining, rinsing, and washing operations, and as a result, the drainage switching device can be stored compactly within the panel, and the product can be made compact, making it easy to distribute. It is possible to reduce the time required for product packaging and costs, and since the operation knob can be operated or slid, it is possible to reduce the amount of time required for product packaging and reduce costs.
o0 The difficulty of operating the three-step switching angle close to each other can be eliminated, and the steps can be changed only in the same sliding direction, resulting in improved operability.

[Brief explanation of drawings]

FIG. 1 is an IIfr side view of a conventional male drainage switching device, FIG. 2 is an exploded perspective view of the same essential parts, FIG. 3 is an exploded perspective view of a drainage switching device according to an embodiment of the present invention, and FIG. Fig. 5 is a state diagram of the same device during rinsing work, Fig. 6 is a state diagram of the same device during washing work, Fig. 7 is the operation of the rotating lever of the same device. 8 are operational circuit diagrams of the pump operation switch and drain pump of the same device. 4... Movable lever, 5, 6... L-shaped notch, 7... Switch for pump operation, 8-... Switch push part, 13 - Drainage string, 16... Rotating lever. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 3 Figure 4 1°02B Kobanji Figure 7

Claims (1)

[Claims] The drain body of the drain valve is attached, and a lever with a notch on one end that engages with the shaft provided on a rotating lever that rotates on a pivot point can be slid, and the drain pump operation is attached to the other end of this lever. Drainage switching device for a washing machine, which is equipped with an opening/closing section for a switch.