JPS58118792A - 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 The present invention relates to a dehydrating washing machine equipped with a vibration isolating device that suspends and supports an outer tub containing a washing and dehydrating tub from the upper part of the main body.

A conventional example will be explained based on FIG. 1 showing a conventional one-tub dehydrating washing machine. In the drawing, 1 is the main body of the dehydrating washing machine, 2
1 is a washing and dehydrating tank having a large number of dehydrating holes 3 on the side wall, a rotary blade 4 is provided at the center of the bottom, and a balancer 6 is fixed to the opening at the top end.

6 is an outer tank with the above-mentioned washing/dehydration tank 2 inside, 7 beam 2.
−′ Latch mechanism, within this clutch mechanism γ is the washing.

Built-in dewatering switching clutch and braking device. 8
is the motor installed below the tank 6, and the motor 8 is
The power is transmitted to the rotor blade 4 via the belt 9. 1
Reference numeral 0 denotes an upper support fitting fixed to the ten and four corners of the main body 1, and has a hemispherical seat 11, and a spherical body 12 is attached to this seat 11.
This spherical body 12 has a rod 13
It is fixed by inserting the upper end of it. Reference numeral 14 denotes a lower support fitting provided on the lower side surface of the outer tank 6, which has a hemispherical seat 15, on which the spherical part 17 of the sliding body 16 is rotatably supported.

Figure 2 shows a vibration isolator with a conventional structure, in which the sliding body 1
6 is formed by integrally molding the spherical portion 17 and the cylindrical portion 18. Reference numeral 19 denotes a collar portion integrally formed at the lower end of the rod 13, and a receiver 21 made of elastic rubber with a metal plate 20 integrally molded is fitted onto the rod 19 on top of the collar portion 19. are doing. This receiver 21 has a sealing portion 2 to prevent air from leaking between the receiving body 21 and the inner wall of the sliding body 16.
2 is formed. A spring 23 is interposed between the lower surface of the spherical portion 17 and the receiver 21. rod 1
A gap is formed between the hole 25 formed in the boss 24 in the spherical portion 17. Generally, in this type of vibration isolator, when the receiver 21 reciprocates up and down with the rod 13,
Air within the sliding body 20 flows in and out through the gap between the rod 13 and the hole 26, acts as an air damper, and performs vibration isolation. In the washing machine configured as described above, various vibrations occur due to the laundry being shifted to one side during dewatering, and the rod 13 is not necessarily located on the center line of the sliding body 16, and the rod 13 is not necessarily located on the center line of the sliding body 16, and the rod 13 is not necessarily located on the center line of the sliding body 16. Depending on the size of the gap, it may end up in an inclined state as shown in FIG. However, in the conventional vibration isolator described above, the receiver 21 is fitted into the rod 13 with almost no gap, so the receiver 21 has almost no degree of freedom relative to the rod 13. Therefore, even if the sliding body 16 is tilted with respect to the rod 13, the receiver 21 that should be in close contact with the inside of the sliding body 16 is
6, it has the disadvantage that a gap is created between the sliding body ′ and 6, making the effect as a damper unstable. To address this drawback, it is conceivable to give the receiver 21 a degree of freedom relative to the rod 13 by loosening the fit between the receiver 21 and the rod 13 and providing a gap between the two. However, in this case, the force acting on the buckle part 19 at the lower end of the rod 13 and the lower surface of the receiver 21, that is, mainly the mechanism including the outer tank 6, and the weight of the water poured into the outer tank 6. etc., so either make the rod 13 thinner or make the hole diameter in the center of the receiver 21 narrower.
If the respective gaps are made larger, the contact area between the flange 19 at the lower end of the rod 13 and the receiver 21 becomes smaller, making it difficult to support mechanical parts including the outer tank 6 with sufficient strength as described above. There were drawbacks. In particular, when the diameter of the rod 13 is made small, it is difficult to make the flange part 19" large during plastic working, so conventionally the rod 13 is made with a strength larger than the required strength, thereby reducing wasted material. It was happening.

Furthermore, as mentioned above, there is not much clearance between the rod 13 and the receiver 21, so it is difficult to assemble the rod 13 into the receiver 21, and it is very difficult to perform this insertion work with an automatic machine. It was inconvenient. Furthermore, in the past, there have been some models in which the lower end of the rod 13 is bent by about 900 degrees to serve as a receiver for the mechanism part, instead of the collar part 21 at the lower end of the rod using a small diameter rod. This was an undesirable situation in that there was no surface contact and force was inevitably applied to a location deviated from the center of the receiver 21.

The present invention solves the above-mentioned conventional problems, and embodiments of the present invention will be described below.

A large diameter portion 2 is connected to the lower end of the rod 13 via a tapered portion 26.
7 is provided, and a collar portion 19 is integrally provided on the lower surface of this large diameter portion 27.

The diameter of the hole 28 formed in the center of the receptacle 21 into which the rod 13 is inserted is the same as the diameter of the large diameter portion 27 of the rod 13, and the receptacle 21 is fitted into this large diameter portion 27. ing.

The diameter of the large-diameter portion 27 of the rod 13 is such that the collar portion 19 can be formed integrally with the outside of the mechanism including the outer tank 6 and the contact area that is sufficient to withstand the weight of injected water. It is desirable to set the size to .

Further, the length of the large-diameter portion 27 is approximately % of the length X of the hole 28 of the receiver 21, and the length of the tapered portion 26 is preferably approximately the same as that of the large-diameter portion 27. The diameter of the rod 13 needs to be large enough to accommodate the above-mentioned mechanical parts and the tensile force of the weight of the injected water, but it can generally be made smaller than in the conventional case.

Since the tapered portion 26 and the large diameter portion 27 of the rod 13 are present in the hole 28 of the receiver 21, there is a large degree of freedom.
The receiver 21 easily follows the sliding body 16 even under various vibrations, and the effect as a damper is stabilized. In addition, the collar 19, which has a contact area large enough to withstand seven parts of the weight of the mechanical parts, etc., is connected to the rod 13, which has a smaller diameter than before.
Not only does it save a lot of material, but it also allows for smaller diameter rods.
3, the receiver 21 has a hole 28 with about 11 the same diameter as the conventional one.
Therefore, the rod 13 can be easily inserted into the receiver 21, and since the rod 13 has the tapered portion 26, it can be quickly inserted into the diameter dog portion 2A, and the ease of assembly is extremely improved.

As described above, in the present invention, the upper end of the rod is supported in the main body, the sliding body into which the lower end of the rod is inserted is supported in the outer tank housing the dehydration tank, and the lower end of the rod is connected to the main body through a tapered part to increase the diameter. By forming a section with a large diameter and providing a vibration isolating device formed by stretching an elastic body between the receiving body and the sliding body, the damper function is expressed well and the ease of assembly is improved. It is a dog of industrial value.

[Brief explanation of drawings]

Fig. 1 is a sectional view of the main parts of a washing machine, Fig. 2 is a sectional view of a vibration isolator in a conventional washing machine, Fig. 3 is an explanatory diagram of the operation of the main parts of the vibration isolator, and Fig. 4 is a sectional view of the main parts of the washing machine. FIG. 5 is a cross-sectional view of a vibration isolating device for a dehydrating washing machine according to an embodiment of the invention, and is an explanatory diagram of the operation of a main part of the same vibration isolating device. 1...Dehydration washing machine main body, 2...Washing and dehydration tank, 6...Outer tank, 13...Rod, 16
...Sliding body, 21...Receptor, 23...
...Sublink, 26...Tapered part, 27...
・Large diameter part. Name of agent: Patent attorney Masao Nakao and 1 other person No. 1
Figure 2 Figure 9.5 Figure 3

Claims (1)

[Claims] The upper end of the rod is supported by the main body, and the sliding body into which the lower end of the rod is inserted is supported by an outer tank that houses a dehydration tank, and the lower end of the rod is formed with a large diameter part through a tapered part, and this large diameter part is supported at the bottom end of the rod. A washing machine comprising a vibration isolating device formed by stretching an elastic body between a receiver fitted into the part and the sliding body.