JPS58141186A - Dehydrating washing machine - 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 a mounting device for a reversal prevention spring for a dehydrating shaft in a dehydrating washing machine.

In Fig. 1 showing the basic configuration of a conventional washing machine,
1 is the outer frame of the washing machine, 2 is a cover that covers the bottom part of the outer frame 1, 3 is a panel on which electrical components are mounted and controls the mechanical movement of the washing machine, and 4i11 is a panel in the center of the cover 2 that can be opened and closed freely. 6 is a cylindrical water receiver for receiving washing water, 6 is a spin-drying tank and a washing tank, 7 is a spin-drying hole formed on the outer periphery of the washing tub 6, and 8 is a pulsator that stirs the laundry for washing. It is located at the center bottom of the tank 6. 9 is Mortaguri 10. and V
A motor transmits rotational force to a mechanical case 12 with a built-in clutch mechanism via a belt 11, which rotates a pulsator 8 during washing and a spin-drying tub/washing tub 6 during spin-drying.

13 is a motor 9. These mechanical parts are suspended by a vibration isolator 14, which serves as a reinforcing plate to which the mechanical case 12 is attached. It is attached via a slidably attached rod 16. Reference numeral 17 denotes adjustment legs provided at the four corners of the bottom of the outer frame 1, which are used to adjust so as not to cause any unevenness when the frame is installed on the floor. 18 is a leg; 19 is a drain cock that has a drain valve installed therein and is opened to drain the washing water in the water tray 6 to the outside of the machine; 20 is a drain hose connected to the drain cock 19; 21 has a liquid sealed inside, and when the laundry in the dehydration tub/washing tub e is dehydrated in a lopsided manner, the liquid moves to maintain balance according to the lopsidedness of the laundry. Reference numeral 22 denotes a dewatering tray cover that reinforces the upper opening of the water tray 6. ' In FIG. 2, which shows details of the vicinity of the conventional mechanical case 12, the central axis of the mechanical case 12 is as follows.

The dewatering shaft 23 is rotatably held by bearings 24 provided in the metal case 26 forming the mechanical case 12 and the mechanical case cover 26.

The metal case 26 and the mechanical case cover 26 each have a metal constriction shape with a groove.

It is fixed to the reinforcing plate 13 with mounting bolts 27. A flange sono jar 2 is attached to the dewatering shaft 23 which has a step on the upper part.
9 is attached, and a disc-shaped shaft flange 28 is attached to the upper part of the disc-shaped shaft flange 28.
is placed and fixed with a nut 31iC via a presser foot 30. A dehydration tub/washing tub 6 is fixed to the outer edge of the bottom flask 28 with a tap bin screw 32. A washing/yaft 33 is inserted into the dewatering shaft 23, and a pulsator 8 is attached to the upper end of the shaft 33. A through-hole is provided in the center of the water receiver 6 to allow insertion of the upper part of the mechanical case cover 26, and the mechanical case cover 2, . Oil nol 34 held on top of 6
This ensures the waterproof effect of the dewatering shaft 23 and the water receiver 6. The upper part of the oil seal 34 that connects the dewatering shaft 23 is covered with a cap 36.

Next, the internal configurations of the metal case 26 and mechanical case cover 26 will be described in detail.

The gear case 36 is fixed to the dewatering shaft 23 while maintaining its normal size.
and a brake wheel 37, and a reduction gear 38 is set to reduce the speed of the washing shaft 33. This dehydration shaft 23. Gear case 36. brake wheel 3
7 is integrated, so it rotates at high speed during dehydration.

A band brake 39 is arranged on the outer periphery of the brake wheel 37.9. A brake shoe 40 is attached to the inner circumferential surface of the band brake 39, and the brake shoe 40 is in a released non-contact state with the brake wheel 37 during dehydration, and is in contact with the brake wheel 37 when stopped.

Further, a reverse rotation prevention spring 41 is attached to the dewatering shaft 23 for the purpose of preventing rotation in a direction opposite to the dehydrating rotation direction.

1.1 In FIG. 3 showing a conventional brake device, an electromagnetic magnet 42 attached to the bottom of the water receiver 6 and the reinforcing plate 13 is shown.
When the current is applied, the plunger 43 is attracted in the direction of the arrow M', and this cylinder 43II'i joint 4
4 are connected by a split bottle 46, and a drain cock 1 is connected to the other end.
9 are linked together.

Then, when the electromagnetic magnet 42 operates, the drain cock 19
The valve is released, and when the current is turned off, the valve is closed.

A stopper 46 is provided in the middle of the cock joint 44, and operates the clutch lever 47 together with the operation of the electromagnetic valve. This clutch lever 47 rotates around a clutch lever bar 48, and an adjustment bolt 49''f is attached to the portion of the clutch lever 47 located on the side of the dewatering shaft 23.
: Provided and brought into contact with the brake cam 60, the brake cam 6
o is urged to rotate in direction B. Therefore, the distance between the clutch lever 47 and the stopper 46 is adjusted by moving the adjustment bolt 49 back and forth.

The dewatering shaft side of the brake cam 60, which rotates in the B direction around the brake lever par 61, rotates in the C direction, and at this time, one end of the brake cam 6o and the brake band 39
Since the brake band 39 is connected to the movable part at one end, the brake band 39 moves together in the C direction, releasing the brake shoe 40 from the brake wheel 37 and making it non-contact.

The other end of the brake band 39 is fixed by a brake pin 63 to a fixed receiver 62 provided integrally with the metal case 26, and the handbrake is turned on and off by opening and closing an electromagnetic magnet.

The brake force pulls the brake spring 64 and the brake cam 6o in the X direction, and at this time, the brake band movable part is applied with force in the opposite direction to the C direction, and the brake shoe 40
The brake wheel 37 is held at this point to perform a braking operation.

Clutch lever 47 is a clutch spring that switches between washing and dehydrating! However, since it is necessary to operate the clutch boss 66 that is linked with a part of the clutch spring 66, the electromagnetic magnet is turned off during washing, and the clutch lever 47 The clutch claw 67 at the tip of the clutch boss 66 engages the clutch boss 66, and the bias of the clutch spring 66 is released.

Next, during dewatering, the electromagnet (1) is turned on and moved in the D direction to bias the clutch spring 66. The clutch spring 58 applies a force in a direction to push the taranotile lever 47 downward and push it down in the opposite direction to the D direction, and provides a force to reliably push the clutch boss 66 during washing. Figure 4 shows the installation of a conventional anti-reverse spring.

One end of the anti-reverse spring 41 is wound around the dewatering shaft 23, and when rotating in the dehydrating rotation direction G, the anti-reverse spring 41 releases its bias and the dehydrating shaft 23 slides and rotates. but,
When the dewatering shaft 23 rotates in a direction opposite to the G direction, an urging force acts to prevent rotation.

Further, the other end of the anti-reverse spring 41 extends in the outer circumferential direction, and a circular portion 69 is formed at the end, and the strength of the circular portion 69 is improved by a reinforcing ring 60. A stepped bolt 61 is inserted into the circular portion 69 of the anti-reverse spring 41 from above and tightened into a mounting hole 62 provided in the metal case 26. The purpose of the anti-reversal spring 41 is to prevent the dehydration tub and washing tub from rotating together during washing, but the tub performs rotational movement in the same way as the laundry in the tub during washing, which improves the washing effect. There was a drawback that the value decreased significantly.

The present invention eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described in detail below.

In FIG. 6, the anti-reverse spring 41 is attached to the metal case 26. The brake lever par 61 of the brake device, the collar part 63 of the metal case 26,
It is fixed to a metal case 26. It penetrates between the brake plate 64 and a brake cam 6o is provided in the intermediate portion. Further, the lower part of the brake lever par 61 is provided with a snap ring 66 as a receiving part, and the upper part is provided with a snap ring 66.
is formed to prevent the upper and lower parts from being removed. This brim 66
and the collar portion 63 of the metal case 26.

A circular portion 69 of the anti-reverse spring 41 is attached.

Therefore, in the conventional installation of the anti-reverse spring, as shown in Fig. 4, it was attached to the metal case 26 using a single step bolt 61, but depending on the tightening conditions, the step bolt may be installed at an angle, or the When the mounting hole 62 provided in the case 26 is tilted due to deformation and the shoulder bolt 61 is tilted,
The anti-reverse spring tilts along this line, and the part that wraps around the dehydration shaft.

This caused the phenomenon of hitting the eccentric 9 pieces, causing wear of the dehydration shaft and abnormal contact noise during dehydration rotation.

However, as in this embodiment, since the brake lever par 61 is used and is attached by a bar of one main pillar, no inclination occurs and no adverse effect is exerted on the reverse prevention 1F spring 41. Furthermore, from the perspective of assembly work, the conventional method uses stepped bolts, which are special bolts and are expensive, and the construction is extremely unreasonable in terms of the number of man-hours and strength required for tightening. However, in the case of this embodiment, by simply making the brake lever par 61 a little longer, no number of parts is required, cost and work efficiency can be reduced, and the structure is extremely simple and superior quality can be achieved than before. There are things that can be secured.

As described above, one aspect of the present invention is to wind a reversal prevention spring around the dehydration shaft of a washing machine, which automatically reverses the pulsator during washing and rotates the inner tub during dehydration, so that the bias is released during rotation in the dehydration direction. Turn this reverse prevention 11-. One end of the spring is locked to a main shaft that operates a brake cam that is linked to a band brake, thereby increasing the washing effect.

[Brief explanation of drawings]

Figure 1 is a sectional view of the dehydrating washing machine, Figure 2 is a sectional view of the mechanical part of the dehydrating washing machine, Figure 3 is a top view of the mechanical part, and Figure 4 is a sectional view of the mechanical part of the dehydrating washing machine.
The figure is a diagram showing the installation configuration of a conventional reverse rotation prevention spring, and FIG. 6 is a diagram showing the installation configuration of a reverse rotation prevention spring according to an embodiment of the present invention. 23... Dehydration shaft, 41... Reverse prevention spring, 61... Brake lever par. Name of agent: Patent attorney Toshio Nakao and 1 other person11
Figure 3 Figure 2 θ WA3 Figure 47 4.14.5 Figure 14

Claims (1)

[Claims] Reversal prevention I1 with one end fixed to the dehydration shaft. The other end of the spring. A dehydrating washing machine in which a flake cam that is linked to a brake is attached to the main shaft that operates it.