JPS58138493A - Washing machine combining dehydration - 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 The present invention relates to the improvement of the structure of a washing machine with a dehydrating function, especially the installation of a drain cock. Mounting increases reliability of strength.

Conventionally, a dehydrating and washing machine has a configuration as shown in Fig. 1, in which 1 is an outer box, 2 is a top lid placed and fixed on top of the outer box 1, and 3 is a top lid placed and fixed on top of the top lid 2. 4 is the installation box 3
The electrical equipment installed inside controls the operation of the washing machine. Reference numeral 5 denotes a bottomed cylindrical water receptacle provided inside the outer box 1, and the annular dewatering receptacle has a cup <-6 at the upper opening. Reference numeral 7 denotes a bottomed, substantially cylindrical inner tank rotatably provided in the water receiver 5, which has a large number of dewatering holes 8 in its side wall, and has a substantially donut-shaped balance ring 9 at its upper open end. 1o is a nozzle rotatably provided at the inner bottom of the inner tank 7. Reference numeral 11 indicates a motor provided at the lower part of the water receiver, and reference numeral 12 indicates a mechanical unit. Inside thereof, there are a clutch mechanism, a brake device, etc. that switches between the rotation of the inner tank 7 during spin-drying and the rotation of the pulsator 10 during washing and rinsing. has. 13 is the motor 11
This is a V-belt that transmits the power to the mechanism section 12 via a pulley. Reference numeral 14 denotes a reinforcing plate for attaching and supporting the motor 11 and mechanism section 12, which is fixed to the bottom of the water tray 5 and suspended from the outer box 1 via a vibration isolator 16 and a rod 16. 17
is a drain cock that drains the water in the water receiver 6, and leads the water out of the machine through the drain hose 18. Reference numeral 19 is an adjustable leg provided at the bottom of the outer box 1. When installing the washer on the floor,
Adjust the height to eliminate the wobbling. 2o is a leg that does not have an adjustment function, 21 is an opening/closing lid, and 22 is a reinforcing plate 14
This is a bolt for fixing the water tray 6 to the bottom of the water tray 6.

Figure 2 shows the structure of the conventional drain cock 17 and its vicinity.
is an electromagnetic magnet attached to the bottom of the water receiver 6 and the reinforcing plate 14, and when energized, the plunger (adsorption plate) 24 is attracted in the direction of arrow A.

One end of a cock joint 26 is connected to the plunger 24 with a split pin 26, and the other end of the cock joint 25 is linked to the drain cock 17. When the electromagnetic magnet 23 is energized, the drain cock 17 is opened, and when energized, the drain cock 17 is closed.

A stopper 2 is provided at the middle part of the cock joint 26.
7 is provided, and the clutch lever 28 is operated in accordance with the operation of the electromagnet 23.

The clutch lever 28 is interlocked with a brake lever 29, and further interlocked with a brake band 3o.

If the electromagnetic magnet 23 is energized, the brake band 3o
releases the bias and does not restrict the rotation of the inner tank 7.

When the power is turned off, a brake seat 33 adhesively fixed to the brake band 30 is pressed against the outer periphery of the brake wheel 32 integrally fixed to the main shaft 31, thereby stopping the rotation of the inner tank 7.

3 and 4 show details of the mounting structure of the drain cock 17, and the outer bottom of the water receiver 5 made of synthetic resin, for example polypropylene, has a cylindrical drain port 34 and a boss 36 for mounting the drain cock 17. Furthermore, the receiver of the drain cock 17 has a lip 36 integrally formed to protrude therefrom. 37 is a leg integrally molded on the main body 17a of the drain cock 17;
A mounting screw 38 is arranged in the center.

A rubber valve 39 in the main body 17a of the drain cock 17 is connected to a tension fitting 4o, and the tension fitting 4o and the cock joint 26 are connected by a cock spring 41, and the above-mentioned electromagnetic magnet 23 is connected to the tension fitting 4o. Due to the operation,
Valve 39 opens and closes.

When the electromagnet 23 is not energized, the rubber valve 39 is pressed in the closing direction by the compression spring 42 to prevent water leakage.

Reference numeral 43 denotes a conocrot, which serves as a guide for the compression spring 42.

From the above, the washing water in the water tray 6 flows from arrow B to arrow C and is drained.

1. The drain port 34 is fitted into the inlet port 44 of the main body 17a of the drain cock 17, and is further sealed with an adhesive. Further, the receiver for receiving the drain cock 17 is provided with two ribs 36 spaced apart from each other, and a boss 36 for attaching the drain cock protrudes from the inner side thereof.

The boss 35 is provided with a pilot hole 46 into which a screw is screwed.

According to the structure of the above-mentioned installation of the drain cock 17, since the leg part 37 of the drain cock 17 was tightened and fixed with a metal screw 38, the height dimension was sufficient to absorb the length of the screw 38. Therefore, it is necessary to provide a boss 36 on the outer periphery of the bottom of the water pan 5, and a large amount of molding material for the water pan 6 is required. Furthermore, a pilot hole 46 that fits the screw 38 must be set inside this post 36, and if the diameter of the pilot hole 45 is large, the tightening torque will be insufficient, and if the pilot hole 46 is small, A phenomenon occurs in which the tightening torque becomes too high and the entire post 36 is destroyed. Furthermore, a boss 36 is formed. The hardness of the material of the water receiver 6, for example, polypropylene resin itself, also affects the selection of the material to determine the tightening force of the screw 38. In addition, when forming the boss 35, the lip 36, etc., it is necessary to add a complicated mold shape with many grooves to the resin mold forming the water receiver 6, and furthermore, it is necessary to add a complicated mold shape with many grooves. It is necessary to arrange a pin for forming the pilot hole 46 at the deepest point on the cavitation side, which inevitably complicates the mold structure.

The present invention solves the above-mentioned conventional problems, and embodiments thereof will be described below. In FIGS. 5 and 6, the drain cock 17 has a main body 17a made of synthetic resin such as polypropylene, and a part of the drain cock 17 has forked legs 37.
．． 37 are integrally formed.

Reference numeral 46 denotes a convex portion protruding from the outer bottom of the water pan 5 made of synthetic resin, and the inside thereof communicates with the inside of the water pan 6. Therefore, the thickness of the wall portion of the convex portion 46 is equal to the circumference of the water pan 6. It is almost the same as that of the side wall. 47 is the outer bottom surface of the convex portion 46;
Guide riff integrated with 6.

48 and guide pin 49 are formed to protrude.

The end surface of the leg portion 37.37 is along the guide lip 48,
Further, the guide pin 49 is inserted into a hole 50.50 formed in the leg portion 37.37. 61 is a rivet-like head formed by melting the end of the guide pin 49, and is heated by ultrasonic heating.
It is formed using hot plate heating or the like.

An inflow port 44 formed integrally with the main body 17a of the drain cock 17 is fluid-tightly inserted into the cylindrical drain port 34 formed integrally with the water receiver 5.

According to the above configuration, the convex portion 46 is integrally formed on the outer periphery of the outer bottom of the water receiver 5, and the guide pin 49 provided on the outer bottom surface 47 of the convex portion 46 is connected to the hole 50.5 of the main body 17a of the drain cock 17.
0 and the guide pin is crushed by ultrasonic welding to hold the drain cock 17.
There is no need for mounting screws, there is no need to determine a prepared hole for screwing in a screw, or to select based on the hardness of the resin material that forms the boss, just by melting the guide pin 49 made of synthetic resin material. That's enough. Also,
Conventional bosses, pilot holes, and receivers do not require a mold with a complicated configuration to form lips, and only short guide pins 49 and guide lips 48 are provided, so they do not deform during heat shrinkage. It is difficult to be affected by

Actually, since the main body 17a of the drain cock 17 is held by welding the guide pin 49 and the drain port 34 is inserted into the inlet 44 of the main body 17a, the holding strength of the main body 17a is extremely large. .

In the embodiment, a case is shown in which the melted head 61 of the guide pin 49 locks and holds the open end of the hole 50.50 of the main body 17a. You may do so.

Also in this embodiment, the guide pin 49 and the main body 17
It is assumed that a and a are welded together.

As described above, according to the present invention, the drain cock can be reliably fixed to the water receiver, and the mold structure for integrally molding the guide pin with the water receiver can be significantly simplified.
It is advantageous in terms of production.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of a conventional general dehydrating and washing machine;
The diagram shows an electromagnetic magnet and the brake operated by it.
Figure 3 is a horizontal cross-sectional view showing the relationship with the drain cock, Figure 3 is a vertical cross-sectional view showing the structure of the drain cock, Figure 4 is a perspective view of the main part showing the shape of the outer bottom of the water tray, and Figure 6 is the main part. The installation of the drain cock in the embodiment of the invention is an exploded perspective view showing the structure, and FIG. 6 is a longitudinal cross-sectional view of the same. 6-------Mizureki, ? --------Inner tank, 10---
---Pulsator, 17... Drain cock, 17
a...-Fist body, 34... Drain port, 37.
...Legs, 44...Inflow port, 49...
...Guide pin, 60...hole. Name of agent: Patent attorney Toshio Nakao and one other person II
figure,? 12 Figure 23! Figure 3

Claims (1)

[Claims] Self-sustaining with a pulsator on the inner bottom that rotates during washing.
The inner tank is provided with a synthetic resin water tray in which the water can be freely rotated for dehydration, and a convex portion is formed integrally with the water pan on the outer bottom of the water pan, and on the lower surface side of the convex portion, A guide pin and a drain port are formed integrally with this convex portion, and the main e and inlet of a drain cock are inserted into the guide pin and drain port, respectively, and the guide pin and leg are welded and fixed. Machine.