JPS58195593A - Support 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 The present invention provides an outer tank with a washing and dehydrating tank inside, and FIG. 1 shows a single-tank dehydrating washing machine with a conventional structure. This is a washing and dehydrating tank having a large number of dehydrating holes 3 at the bottom, a rotary blade 4 is provided at the center of the bottom, and a balancer 5 is fixed to the opening at the top. 6 is the washing/drying tank 2
7 is a clutch mechanism, and this clutch mechanism T has built-in a switching clutch for washing and dewatering, and a braking device. Reference numeral 11 denotes a motor installed below the outer tank 6, and the power of this motor 11 is transmitted to the rotor blade 4 via a belt 12. Reference numeral 13 denotes an upper support fitting fixed to the four corners of the upper part of the main body 1, and has a hemispherical seat 14. On this seat 14, an upper support supports a tool 15 rotatably, and this upper support supports the tool 15. is inserted into and fixed to the upper end of the rod 16. 17 is a lower support provided on the lower side surface of the outer tank 6;
Hemisphere C" has a surface seat 1. The lower support rotatably supports a tool 19 on this seat 18, and a tespension 22 is held between the lot 16 and this spherical part 19. Generally, dehydration washing Due to the structure of the machine, the motor 11, which has a large mass, is located off the center of the outer tank 6, so the center of gravity G of the hanging part including the outer tank 6, the dehydration tank 2, the motor 11, etc. does not coincide with the rotation center of the dehydration tank 2, and therefore, as will be explained next, the hanging parts balance and stand still with the center of the dehydration tank 2 shifted from the center of the main body 1, so the user cannot open the lid 20. Not only will you feel something strange when you open the dehydration tank 2 and look at the dehydration tank 2, but if the hanging part vibrates due to unbalanced cloth etc. when starting dehydration, there will be an inconvenience that the hanging part will hit only one direction of the main body 1. The above state will be explained with reference to Figure 2.In order to make it easier to understand, everything is shown using two-dimensional figures, and therefore the formulas etc. that explain the state are also calculated based on the two-dimensional figures.In Figure 2, a: From the center of the dehydration tank 2 to the hemispherical seat 1 of the lower support 17
Distance to 8 2-axis: Center axis of main unit 1') Y-axis: Center axis of dehydration tank 2! '□1 ・ :'11 x: Distance from the center of the dehydration tank 2 to the center of gravity G of the hanging part e: Length of the rod 16 C: From the center of the main body 1 to the hemispherical seat 14 of the upper support fitting 13
Distance to θ1. θ2: Angle f1 of the rod with respect to the vertical axis. f2:
The loads applied to the hemispherical seat 18 of the lower support 17, Vsfl, and f2, are determined as follows, assuming that the weight of the outer tank 6 is M.

"" 4a M(2) Also, the horizontal component force F4 caused by fl and f2. To find F2, Fl −fl S10 θ1・cos θ+
(
F2=f2S1nθ2.14osθ2 (4) Here, θ1 and θ2 are small, so equations (3) and (4) are as follows.
It.

1. It becomes much easier.

Fl 嬌f1sInθ1(5) IF2-f2
SInθ2' (6) At the position where the hanging part is stationary, the horizontal component pressure F1. F
2 is balanced, so it becomes Fl-F2. Therefore (6),
Equation (6) is f1S group θ1-f2S1002 (7) Also, from equations (1) and (2), the force f1 acting on the hemispherical seat 18 of the lower support 17 on the side of the center of gravity of the hanging part is
It can be seen that this force is greater than the force acting on the opposite side.

fl>f2 (8) (8)
From equation (7), sin θ1 <Sln θ2 (9) Therefore, when θ1, that is, the angle formed by the rod on the side of the center of gravity is smaller than the angle formed by the rod on the side opposite to the center of gravity, the hanging part is balanced and stationary. , this means that the hanging part is 1 (sin θ - 5 in θ 1)/2.
This means that it is shifted toward the center of gravity G from the center Z axis.

As mentioned above, in a dehydrating washing machine with a conventional structure, the center of the main body 1 and the center of the dehydrating tank 2 generally do not coincide, so the hanging part from the main body 1 is forcibly stretched with a bow 1, or the suspension on the center of gravity side is Using something stronger than the side opposite to the center of gravity,
The hanging part was tilted towards anti-military, b (III),
In either case, it was basically impossible to align the center of gravity G with the center of the main body 1 with these measures.

The present invention has been made in order to solve the above-mentioned conventional problems.One embodiment of the present invention will be described below.As can be seen from the explanation in FIG. The reason why the axis Y shifts is due to the difference in the values of fl and f2 shown in the above equations (1) and (2). As is clear from equations (1) and (2) above, in order to reduce the difference between fl and f2, the distance from the center of gravity G to the hemispherical seat 18 of the lower support 17, for example, on the center of gravity side ( a-x)
, it can be seen that on the side opposite to the center of gravity, it is sufficient to reduce the difference between the values shown by (a + x). Therefore, in the present invention, in order to reduce this difference, the f part support 17 on the center of gravity side is extended by the length b, and the hemispherical seat 18 of the lower support 17 is extended from the center of gravity G.
The distance to is (a-x+b).

Next, in FIG. 3, the value of the extended length b of the lower support 17 is determined so that the center Z-axis of the main body 1 and the center Y-axis of the dehydration tank 2 coincide.

In Fig. 3, the same parts as in the conventional example are given the same symbols and the explanation is omitted.Here, if we give the condition that the center of the dehydration tank is aligned and balanced with the center z-axis of the main body 1, the above equation can be written as b. Solving for b=(f f)Cc-a)/V (12)1
2 1Also, fl and f2 are respectively □ (13), and by substituting equations (14) into equation (12), b
= 2x(Q+fi)/(..,′″6:(,6
The extension dimension of the lower support 17 that makes the center of the dehydration tank 2 coincide with the center Z-axis of the main body 1 is determined by equation (15).

A point of return --- Also, according to equation (14), there is a difference between fl and f2 in this state, so from equation (k), it can be seen that ttc is the value of the angle θ1θ2 formed by the % rod 16. is also different. As shown in Figure 3, this
Even if the lower support 17 is extended by b to make the center of the dehydration tank 2 coincide with the center Z-axis of the main body 1, the hanging portion is still slightly tilted toward the center of gravity.

Therefore, in the present invention, the angle θ1.
In order to correct the inclination of the hanging part due to the difference in θ2, the fourth
As shown in the figure, the lower support 17 on the center of gravity side explained in FIG.
Needless to say, the lower support 17 on the center of gravity side and the lower support 1.7 on the anti-military side are extended by b.
There is a difference in height by cos θ - cos θ2),
Lower support 17-'' on the center of gravity side.

is located lower than the lower support 17 on the anti-military side. Also, in order to prevent a difference in deflection between the suspension on the center of gravity side and the anti-center side due to the difference in load between f1 and f2,
A suspension with a longer free length (not shown in Figure 4) is used on the center of gravity side than on the anti-center side so that the length of the suspension is approximately the same when fl and f2 loads are applied. .

As described above, in the present invention, the length of the lower support on the center of gravity side is made longer than the lower support on the anti-military center side, and the lower support on the center of gravity side is lower than the lower support on the anti-military center side. C,
In addition, by making the free length of the suspension on the center of gravity side longer than on the anti-center side, we not only align the center of the dehydration tank with the center Z-axis of the main body, but also eliminate the inclination of the hanging part and maintain a completely vertical state. This is something that has extremely effective effects.

[Brief explanation of the drawings] Fig. 1 is a vertical cross-sectional view of a conventional dehydrating washing machine, Fig. 2 is an explanatory diagram showing the static balance state of the conventional hanging section, and Fig. 3 shows one condition of the present invention. FIG. 4 is an explanatory diagram showing a static balance state of the hanging portion when used, and FIG. 4 is an explanatory diagram of a support device for a washing machine in an embodiment of the present invention. 1... Main body of dehydrating washing machine, 2... Washing and dehydrating tank, 6... Outer tank, 11... Motor,
15-- Upper support is a tool, 16-- Rod, 17-- Lower support, 18-- Seat. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] a support device comprising a rod, a lower receiver provided at the lower end of the rod, an upper receiver provided at the upper end of the rod, and a lower part of an outer tank containing a washing and dewatering tank; The lower support protrudes from the side and is provided with a lower support that matches the tool, and the distance from the rotation center of the washing and dehydrating tub to the seat side of the hemispherical surface of the lower support is longer than the distance from the side opposite to the center of gravity; A support device for a washing machine in which the height of the hemispherical seat of the lower support relative to the outer tank is lower on the motor side and the center of gravity side than on the opposite side.