JPH077902Y2 - Washing machine leg device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention relates to a leg device of a washing machine such as a fully automatic washing machine used in a general household.

2. Description of the Related Art Conventionally, this type of leg structure has been shown in FIG. The leg A1 formed by two-layer molding has a structure in which the floor side has a high hardness and one side has a low hardness, and the large diameter portion 4 of the pin 3 is inserted into the concave portion 2,
The pin 3 is temporarily attached to the hole 6 of the leg B5, the projecting portion 10 of the leg B5 is inserted into the hole 9 of the reinforcing member 8 welded to the outer box 7, and the bottom portion 11 of the leg A1 formed by two-layer molding is pressed. As a result, the pin 3 is deeply inserted into the hole of the leg B5, and the protruding portion 10 spreads and is fixed in the hole portion 9.

Problem to be solved by the invention Conventionally, the leg A1 is a single-layer molded product, and on a hard floor, the leg A1 can be used as it is, but on a soft wooden floor, a rubber cap with low hardness is attached to the leg A1. It was inserted and attached, and the natural frequency was changed to reduce the vibration during dehydration. This involved the cost of a rubber cap for a wooden floor and developed a two-layer molded leg A1 by developing a leg that could be used on hard or soft wooden floors.

However, as a trend in recent years, the capacity of washing machines is increasing, and therefore the weight of products and the weight of laundry increase,
The total weight is applied to the four legs, the legs are crushed, and the leg A1 made of two-layer molding becomes a rigid body even though there is a portion with low hardness, it becomes the same state as conventional one-layer molding, and soft wood On the floor surface, there was a problem that the vibration was large, and when the product was slanted and dragged, the joint part of the two-layer molding came off.

In addition, due to cost reductions, the number of parts has been reduced, and the gauges have been reduced to reduce the product weight. There is also a problem that the product tends to move due to the impact force that the water receiving tank hits the outer box due to the deviation of the clothes in the dehydration process.

The present invention has been made in view of the above problems, and an object thereof is to prevent the joint portion of the leg A from coming off and to prevent the product from moving.

Means for Solving the Problems In order to achieve the above object, the present invention provides an outer box of a washing machine,
A leg A formed by two layers of reinforcing material welded to the outer bottom surface of the outer box and elastic material having different hardnesses so as to be vertically stacked.
And a leg B that covers the upper part of the leg A excluding the grounding side,
The leg A has a large-diameter portion which is held in the recess, and a pin which penetrates the leg B and fixes the leg B to the hole of the reinforcing member. The leg A has a tapered outer periphery on the ground side. The tapered surface is set, and triangular ribs are continuously provided on the tapered surface so as to project toward the ground, and the lower end outer peripheral portion of the leg B that covers the leg A is located below the extension line of the tapered surface of the leg A. It is a thing.

Action As described above, the outer circumference of the grounding side of the leg A is set to the tapered tapered surface, and the triangular rib is continuously provided on the tapered surface to project in the grounding direction. And, regardless of the state of the installation floor surface, dehydration vibration and product movement due to hitting the outer box of the water receiving tank for uneven displacement of the clothes are prevented, and the lower outer peripheral portion of the leg B is located below the extension of the tapered surface. By locating, the peeling of the two-layer molding part when the product is dragged is prevented.

Embodiment An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1, 2, and 3, 1 is a leg A formed by two-layer molding, and 2 is a recess provided in the leg A1.
Reference numeral 3 is a pin, and the large-diameter portion 4 is inserted into the concave portion 2 of the leg A1. 5 is leg B, and 6 is a hole in leg B5. Reference numeral 7 is an outer box, and 8 is a reinforcing material welded to the outer box 7. Reference numeral 9 is a hole provided in the reinforcing member 8, and 10 is a protruding portion of the leg B5. 11 is a tapered surface provided on the outer peripheral portion of leg A1, and 12
Is a triangular rib following 11. 13 is the floor surface. 20 is a leg
It is the lower peripheral portion of B5. 21 is a joint.

Further, in FIG. 4, 14 is a motor, 15 is a V-belt, and 16 is a reduction mechanism. Reference numeral 17 is a water receiving tank, and 18 is a washing / dehydrating tank mounted in the water receiving tank 17 at a speed reduction mechanism. 19 is a suspension rod that suspends the water receiving tank.

In Fig. 1, when installed on the floor 13, triangular ribs 12
In addition, the product weight and the weight of the laundry are added. At this time, in the conventional case, the bottom of the leg A1 is attached to the floor surface 13, and all the weight is received by the four legs A1, so 1/4 of the total weight is for each leg A1.
1, the leg A1 is pressed against the floor surface 13, and although the leg A1 is a two-layer molding, it receives a heavy load, so what is supposed to be elastic with rubber loses elasticity but only rigidity. , The natural frequency cannot be changed by the two-layer molding, which is the original purpose, and the hardness becomes the same as that of the leg A1 which has high hardness in conventional use. In this case, the natural frequency of the soft wooden floor surface approaches, and the outer box 7 and the wooden floor surface resonate with each other, so that the vibration of the outer box 7 increases. However, in the case of the present invention, since the triangular rib 12 is present, even if the weight of the product and the weight of the laundry are applied to the leg A1, the total weight is applied to the triangular rib 12, and the inner bottom of the triangular rib 12 is the floor surface. Since it is not attached, a soft portion formed by two-layer molding remains in the central portion of the leg A1, and it is possible to secure elasticity without having rigidity. Therefore, the natural frequency, which is the original purpose, can be shifted between the outer case 7 and the floor surface 13, and the vibration of the outer case 7 can be reduced.

2 and 3, the case where the product is tilted and dragged is shown. In the prior art, the detachment of the joint portion 21 of the two-layer molding was a problem. If the taper surface 12 is provided on the outer peripheral portion and dragged to avoid inclination, when the inclination angle of the taper surface 12 or more, the lower outer peripheral portion 20 of the leg B5 hits the floor surface 13 first to prevent the load on the leg A1, The leg A1 is protected so that no force is applied to the joint 21. Also, taper surface
Below an inclination angle of 12, the triangular rib 13 hits first and the triangular rib falls down due to the load, thereby increasing the area of contact with the floor surface 13 and reducing the load applied to the joint 21. To prevent slipping off. Further, since the maximum taper surface 11 and the triangular rib 12 are continuously provided, the diameter of the triangular rib 12 becomes larger and the contact area can be increased.
Further, the load can be continuously reduced.

In FIG. 4, during the washing and rinsing process, if the clothes are biased in the washing / dehydrating tank 18, the rotation of the motor 14 is transmitted to the reduction mechanism 16 by the V-belt 15 in the dewatering process so that the washing / dewatering process can be performed. When the water tub 18 is rotated, the washing / dehydrating tub 18 is supported by the four hanging rods 19 on the water receiving tub 17, so that the water tub 18 is easy to move, so that the whirling becomes large and hits the outer box 7. At this time, the product may move due to the impact force if dust or the like is attached to the back surface of the leg A1, but in the present invention,
When the triangular ribs 12 are in contact with the floor surface 13, they serve as suction cups, making it difficult for the product to move.

Effect of the Invention As is apparent from the above embodiments, the present invention forms a tapered tapered surface on the grounding side of the leg A, and continuously projects a triangular rib toward the grounding surface to cause vibration. In addition to improving the performance equivalent to double-layer molding, it also reduces the force applied to the joint part of the double-layer molding when the product is slanted and dragged. Triangular rib acts as a suction cup against impact force on the box, so that product movement is further reduced, performance,
Also, the quality is made more reliable and the cost can be easily reduced.

[Brief description of drawings]

1 to 3 are enlarged cross-sectional views of a main part of a leg device according to an embodiment of the present invention, FIG. 4 is a vertical cross-sectional view of the washing machine, and FIG. 5 is an enlarged cross-sectional view of a main part of a conventional leg device. is there. 1 ... Leg A, 3 ... pin, 5 ... Leg B, 7 ... Outer box, 8
...... Reinforcement material, 9 ...... hole, 11 ...... tapered surface, 12 ...... triangular rib, 20 ...... lower peripheral member, 21 ...... joint part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masaaki Inoue 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-53-140866 (JP, A) JP-A-58-121993 (JP, A) Actually developed Sho 60-173289 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A washing machine outer case, a reinforcement member welded to the outer bottom surface of the outer case, a leg A formed by two layers of elastic materials having different hardnesses so as to be vertically stacked, and the leg A. A leg B that covers the upper portion of the leg A except for the grounding side, and a pin having a large diameter portion held in the recess of the leg A and penetrating the leg B to fix the leg B to the hole of the reinforcing member. The outer circumference of the leg A on the grounding side is set to a tapered tapered surface, and triangular ribs are continuously provided on the tapered surface so as to project in the grounding direction. A leg device of a washing machine, which is positioned below the extension line of the tapered surface of the leg A.