JPH0321739Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is a fully automatic washing machine with a dehydration tank installed in a flexible outer tank, and a flexible dehydration tank installed in a water receiving tank. The present invention relates to a device for detecting abnormal vibrations in an elastic outer tank or a dehydration tank in a dehydrator.

(B) Prior Art This type of device is configured to detect the opening and closing of the lid at the same time, and if vibration is detected even once, the device cannot be reset unless the lid is opened and closed once.

However, when abnormal vibration is detected, it is inconvenient to remove the cause and perform the next control. A structure has been adopted in which a lever for vibration detection is left free, and even if the lever is used to activate or deactivate a switch, it can immediately return to normal operation.

(c) Problems that the invention aims to solve However, since the lever for vibration detection, for example, hangs between the machine casing and the outer tub of a fully automatic washing machine, increasing the degree of freedom requires increasing the spacing. Furthermore, if the movement of this lever is continued to be restricted only by the switch operator, the switch itself will deteriorate, causing the switch to become activated (or deactivated).
The timing may be different.

Therefore, the present invention aims to save space and prevent switch deterioration by appropriately regulating the degree of freedom of the lever.

(d) Means for solving the problem The solution according to the present invention includes a base on which a vibration detection switch that also serves as a lid switch is attached, and a switch that is pivotally supported by the base and that lowers one end when the lid is opened. A first lever associated with the lid is pivotally connected by inserting a fitting hole into a pivot piece at the other end of the first lever, and the upper end is disposed near the switch and the lower end is disposed near the tank. the second lever; and a spring that urges the second lever so that the upper end of the second lever presses the switch downward and the lower end approaches the tank; In one piece,
This configuration includes an upper end regulating piece that regulates the upper end of the second lever with respect to the switch pressing operation direction, and a lower end regulating piece that regulates the lower end of the second lever with respect to the tank approaching direction.

(e) Operation When the lid is closed, the second lever is drawn by the spring so as to come into contact with the lower end regulating piece, and the switch pressing force is regulated by the upper end regulating piece. For this reason, the distance between the second lever and the tank can be fixed, eliminating the need for an extra degree of freedom (distance), and also eliminating the need to apply unreasonable pressing force to the switch.

On the other hand, when the lid is opened, the first lever is lowered and the lower end of the second lever is rotated in a direction away from the tank, thereby releasing the pressure on the switch at the upper end. In addition, when abnormal vibration occurs when the lid is closed, only the second lever moves in the direction away from the tank against the spring, releases the switch pressure, and then returns to its original position. Repeat.

(F) Embodiment The following is an explanation based on the drawings. An outer tank or a dehydration tank 2 is swingable in the main body 1 of a fully automatic washing machine, a dehydrator in a two-tub washing machine, or an independent dehydrator. The upper opening of the tank 2 is provided with a lid 3 that can be opened vertically. A base 4 made of sheet metal bent into a U-shape is fixed to the main body 1. A vibration detection switch (micro switch) 5 that also serves as a lid switch is attached to one part of the base 4, and a vibration detection switch (micro switch) 5 that also serves as a lid switch is attached to one part of the base 4. A pivot portion 6 is formed in the bottom piece, and a large insertion hole 7 is provided in the bottom piece. The switch 5 has an operating element 8 protruding upward.

The first lever 9, which is normally held in a horizontal direction, is pivotally supported by the pivot 6, and has a narrow pivot piece 10 formed at one end, and the other end bent into a crank shape to form a lid 3. It is placed on the edge of the This first lever 9 has an upper end regulating piece 11 at the tip of the pivot piece 10.
A lower end regulating piece 12 is formed to hang down from both edges on the proximal side of the pivot piece 10, and a latching claw 113 is formed to hang down near the pivot piece 6. Each piece and claw are made integrally by cutting and bending sheet metal.

The second lever 14 has an upper end 14' that is connected to the switch 5.
It is provided horizontally so that the operator 8 can be pressed downward, and is bent into a crank shape up to the vertical lower end 14'', and the lower end 14'' is placed in a fixed position with respect to the tank 2. ing. This second lever 14 is
A fitting hole 15 is formed in the center so as to be inserted into the pivot piece 10 for a pivot relationship, and a locking hole 16 is also formed. This latching hole 16 is located below the latching claw 13, and a second lever 1 is located between the two.
A spring 17 is fixedly attached thereto to draw the shaft 4 to the pivot 6.

The second lever 14 passes through the insertion hole 7 and the latching claw 1
3 and the lower end regulating piece 12 face the insertion hole 7.

Thus, in the stable state when the lid is closed as shown in FIG. 17, the second lever lower end 14'' is positioned at a substantially constant distance from the tank 2, and the second lever upper end 1
4' applies a substantially constant pressing force to the operator 8 of the switch 5. For this reason, the switch 5 is maintained in a stable operating state.

Here, when abnormal vibrations occur in the tank 2 or within the tank due to centrifugal dehydration and the tank 2 swings, the tank 2 flips the lower end 14'' of the second lever 14 toward the main body 1 side.
After the second lever 14 has been moved, it is returned by the spring 17, but during this time it rotates around the pivot piece 10 and momentarily releases the pressing force on the operating element 8 by the upper end 14'. ON-OFF of such switch 5
is processed for operational control by a control unit (not shown).

On the other hand, when the lid 3 is opened, the other end of the first lever 9 is lowered, and conversely, the pivot piece 10 is raised and rotated to lift the second lever 14, and the upper end 14' is moved to the operating position. 8.

(g) Effects of the invention As described above, according to the invention, the second lever, which is pivotally connected to the pivot piece of the first lever through the fitting hole, can be moved upward,
Since it is regulated by the lower end regulating piece, by fixedly determining the distance between the second lever and the tank, the space between the tank and the main body can be reduced, and
The switch can be maintained in a stable state by keeping the pressing force of the second lever substantially constant, thereby saving space and extending the life of the switch.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the vibration detection device according to the present invention, Fig. 2 is an exploded perspective view, Fig. 3 A and B are a plan view and sectional view of the base, and Fig. 4 A and B are views of the first lever. They are a plan view and a sectional view. 1... Main body, 2... Tank, 3... Lid, 4... Base, 5... Switch, 6... Pivotal part, 9... First
Lever, 10... Pivot piece, 11... Upper end regulating piece, 12... Lower end regulating piece, 14... Second lever, 14'... Upper end, 14''... Lower end, 15...
...Fitting hole, 17...Spring.

Claims (1)

[Scope of utility model registration request] In washing machines and dehydrators in which a tank is elastically attached to the main body and a lid is placed over the top opening of the tank, a base is attached with a vibration detection switch that also serves as a lid switch, and a vibration detection switch is attached to the base. , a first lever associated with the lid so as to lower one end when the lid is opened; a fitting hole is inserted into the pivot piece at the other end of the first lever, and the upper end is connected to the lid near the switch; a second lever, the lower end of which is disposed near the tank;
The second lever is provided with a spring that urges the second lever so that the upper end of the second lever presses the switch downward and the lower end of the second lever approaches the tank. A washing machine characterized by being provided with an upper end regulating piece that regulates the upper end with respect to the switch pressing operation direction, and a lower end regulating piece that regulates the lower end of the second lever with respect to the tank approaching direction. Vibration detection device in dehydrator.