JPS62137090A - Stirring blade of 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 [Industrial Application Field] The present invention relates to a stirring blade for a washing machine, and particularly to a pulsator having blades arranged radially on a horizontal disk.

[Conventional technology]

In the washing tank shown in FIG. 1, which contained only the disk-shaped blade body 1, there was a large amount of cloth tangled, and there was a lot of uneven washing and damage to the cloth. On the other hand, a washing machine having a structure shown in FIG. 2 in which a stirring rod 3 provided with blades 2 is rotated violently in the forward direction is an improvement on this point.

[Problem that the invention seeks to solve]

The washing machine shown in Fig. 2 does not have the drawbacks of the washing machine shown in Fig. 1, and can handle the laundry of people in a small tank, but on the other hand, the stirring rod (3) protrudes from the center of the washing tank, making it easy to put in and take out the washing items. There were drawbacks that got in the way. This invention was made to eliminate this drawback.

Means for Solving Problem c] The present invention relates to a stirring rod consisting of a cylinder standing upright at the center of the disk and blades protruding low radially on the surface of the cylinder.
It is characterized in that the cylinder and the wings are integrally formed into a hollow structure, and the entire hollow structure is made of an elastic material into a bellows shape that can be expanded and contracted.

[Effect]

If the stirring rod is configured as described above, it can be retracted to lower the height when it is in the way, and it can be stretched out when you want to wash cloths in a full tank.

〔Example〕

FIG. 3 shows a longitudinal section of an embodiment of the stirring blade of the present invention.

In the figure, the hollow cylindrical body 4 and the vertical wing 5 are integrally formed,
Moreover, it has a bellows structure. Since this bellows structure is made by blow molding using polypropylene, polyethylene, or other elastic synthetic resin, it can have a uniform thickness throughout.

Since the constriction 6 of the bellows is formed in a curved shape, it is easy to expand and contract and has a spring action. The depth of the constriction 6 is
It is set in accordance with the amount of expansion and contraction within a range where the cloth will not get caught.

The bellows-shaped hollow cylinder 4 has its lower end 7 connected to the central cylinder 8 of the wing body 1.
A clamp cylinder 10 is joined to the upper end 9. The shaft 12 provided with the anti-rotation rib 11 is located at the center of the hollow cylinder, its upper end is fixed to the knob cylinder 10, and the lower half is connected to the anti-rotation guide hole 1 provided inside the central cylinder 8.
3 is slidably fitted. The shaft 13 holds the hollow cylinder 4 upright and maintains it at a desired height by an appropriate locking mechanism. The detent ribs 11 also prevent twisting torques to which the hollow cylinder is subjected during washing.

When the knob tube 10 is pushed down, the bellows of the hollow cylinder 4 and the hollow vertical wings 5 uniformly contract.

If you want to wash a larger amount of cloth, just pull up the grip tube 10.

〔Effect of the invention〕

According to the invention, the height of the stirring rod protruding from the center of the washing tank can be changed according to the amount of items to be washed or as needed to the extent that it does not get in the way, so the washing effect of the stirring rod can be improved. It is possible to improve the usability of the washing machine without interfering with the washing machine.

In addition, since the vertical blades of the hollow cylindrical body can be blow-molded, the cleaning function can be improved. 2) The shape of the vertical blades 5 can be freely selected. For example, as shown in Figure 5,
The hollow cylinder has a triangular cross section, and the apex of the triangle can function as a vertical wing.

(4,

[Brief explanation of drawings]

Figures 1 and 2 are perspective views of a conventional washing machine, Figure 3 is a vertical sectional view of the stirring blade of the present invention, and Figure 4 is a cross section taken along line A-A' in Figure 3. The top view, FIG. 5, is a perspective view of another embodiment of the invention. 1...Blade body, 2...Blade, 3...Stirring bar, 4...Hollow cylindrical body, 5...Vertical blade, 6...Neck part, 7...
Lower end, 8...Central tube, 9...Top end, 10...Knob tube, 11...Surrounding [Tome rib, 12...Shaft, 1
3... Guide hole for rotation prevention.

Claims (1)

[Claims] 1. In a stirring blade comprising blades provided radially on the upper surface of a horizontal disk and blades protruding low radially from the surface of a cylinder standing upright at the center of the disk, the above-mentioned cylinder and this cylinder What is claimed is: 1. A stirring blade for a washing machine, characterized in that the blade protruding from the blade has an integral hollow structure, and the entire hollow structure is formed into an expandable bellows shape using an elastic material.