JPS6047879B2 - Agitation washing machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an agitator-type washing machine, and more specifically, it relates to an improvement in the structure of an agitator that is swingably disposed in a washing/dehydration tank. In a method of circulating water in a washing and dewatering tank using the rocking agitation movement of an agitator without using a circulation pump,
The purpose is to increase the amount of water circulated, improve the ability to capture lint generated from clothing, and reduce the amount of lint that adheres to clothing after washing.

In conventional agitator-type washing machines, there are broadly two methods for circulating water for the purpose of collecting lint.

One method is to install a circulation pump at the bottom of the washing tub to circulate water, and the other method uses the agitating motion of the agitator of an agitator-type washing machine to circulate water while passing it through the agitator. This is a method of circulation. In the former case, the amount of water circulated is large and the amount of lint captured is inevitably large, so the lint capture performance is satisfactory, but a pump for circulating water and a mechanism for operating this pump are required. However, it had the disadvantage of high cost. The latter uses the movement of the agitator that operates during washing, so there is no particular problem in terms of cost, but the amount of water circulated is small and the lint capture performance is not satisfactory.

The present invention solves the above-mentioned drawbacks of the conventional lint trapping structure using an agitator, and one embodiment thereof will be described in detail below with reference to the accompanying drawings.

In the figure, 1 is an outer frame, 2 is an outer tank, and 3 is a washing and dewatering tank, and this tank 3 is fixed to one end of a dewatering shaft 4. Reference numeral 5 denotes a substantially conical agitator having clothes agitation blades 6 integrally formed on its circumference for agitating the clothes, and is fixed to one end of the washing shaft 7 by an appropriate method.

The washing shaft 7 and the dewatering shaft 4 are arranged coaxially. As shown in the figure, the outer peripheral surface of the agitator 5 is rounded with a certain radius of curvature, which is intentionally called a substantially conical shape, and the upper end surface is flat, but this is also a substantially conical shape. considered as a part.

The upper part of the agitator 5 is cylindrical, and a hole 5b is provided in the peripheral wall surface of the cylindrical part 5a. Further, a filter 9 is removably housed in the cylindrical portion 5a of the agitator. The lint filter 9 includes a lid portion 9a that closes the upper opening end of the cylindrical portion 5a;
A frame body 9d is provided which has a water passage hole 9b and a cylindrical wall 9c which is provided so as to form a double cylinder together with one cylindrical part 5a, and a net etc. It is constructed by attaching a filter body 9e consisting of.

5c is a storage chamber provided inside the agitator 5 for two filter bodies 9e.

In the lower part of the agitator 5 that widens toward the end, water passages 10 are formed which are located on both sides of the root side of the clothes stirring blade 6 and have a substantially triangular cross section.

The upper end opening side of this water passage 10 communicates with the hole 5b via the water passage hole 9b of the storage chamber 5C1 and the filter body 9e1. Further, the lower end side of the water passage 10 faces near the outer periphery of the bottom of the agitator 5, but does not reach the outer periphery of the bottom of the agitator 5. This means that the opening on the lower end side of the water passage 10 is 3! This is to prevent the bottom of the washing and dewatering tank 3 from becoming clogged. The water passage 10 has its bottom side removably closed off by a bottom wall 10a. 5d
is a mounting hole for fitting and fixing the upper end side of the washing shaft 7.

4C Here, to explain the shape etc. of the water passage 10, the water passage 10
As mentioned above, has a substantially triangular cross-section, one wall of which is continuous with the side surface of the stirring blade 6, and one of the remaining two walls is connected to the root side of the blade 6. A partition wall 5e is provided on one side of the agitator 5, and a bottom wall 10a is provided on the other side.The bottom wall 10a is detachably attached to the bottom side of the agitator 5. Reference numeral 11 denotes a clutch mechanism incorporating a bearing for pivotally supporting the washing shaft 7 and the dewatering shaft 4, and a clutch for switching between washing and dewatering. 4 is connected to the motor shaft 13 of the motor 12.

Reference numeral 14 denotes a holding metal fitting for firmly holding the motor 12, and 15 a vibration isolating mechanism, one end of which is suspended from the outer frame 1, and the other end of which suspends and holds the outer tank 2.

Next, the operation of the above configuration will be explained.

During washing, when the motor 12 is rotated forward or backward using a CR timer that uses the charging/discharging time of a capacitor, a time control method using a cam contact, etc., the movement of the motor shaft 13 is controlled via the clutch mechanism 11. washing shaft 7
The agitator 5 attached to the washing shaft 7 repeatedly rotates left and right to perform an agitating motion.

When the agitator 5 is stationary, water is contained in the cylindrical portion 5a at the top of the agitator 5. Next, the washing process begins, and due to the centrifugal force caused by the clockwise or counterclockwise rotation of the agitator 5, the water that has entered the cylindrical portion 5a of the agitator 5 and the water passage 10 is transferred to the filter body 9e1 of the lint filter 9. It flows out from the bottom of the agitator 5 through the water passage 10 of the agitator 5. As a result, the water level in the cylindrical part 5a is lowered, but the water in the upper part of the washing/dehydration tank 3 flows into the cylindrical part 5a through the hole 5b made in the upper part of the agitator 5. The above movement of water occurs whether the agitator 5 is rotated clockwise or counterclockwise.
As a result, the water in the washing liquid dehydration tank 3 is circulated, and the lint contained in the water in the washing and dehydration tank 3 is captured by the D lint filter 9 in the agitator 5.

Here, the water passages 10 are provided on both sides of the base (V) of the stirring blade 6, and since the blade 6 has a protruding warp, the water passage 10 is formed by forming the water passage 1). ,
The shape of the agitator 5 is large (it never happens), and in particular, the water passage 10 is compactly accommodated on the root side of the blade 6 because the shape of the surface of the water passage 10 is approximately triangular.

Moreover, since the water passages 10 are provided on both sides of the root side of the blade 6, when the agitator 5 rotates in one direction, the side surface opposite to the one side surface of the blade 6 that collides with the water flow The inside of the water passage 10 corresponding to the side becomes negative pressure, and due to the formation of this negative pressure, the water in the cylindrical portion 5a rapidly moves to the lower end side of the water passage 10, and together with the addition of centrifugal force, the water flow becomes negative. The water in the water channel 10 flows out with great force, ensuring that the lint filter 9 captures the lint. Also,
The water passage 10 has a removable bottom wall 10a, so that if water scale, lint, detergent, etc. are stuck inside the water passage 10, the interior of the water passage 10 can be easily cleaned. In addition, although the case where the cylindrical part was formed in the upper part of the agitator was explained in the Example, it is not limited to a cylindrical shape, and any cylindrical shape may be used. In addition, the present invention is limited to the embodiments described above and shown in the drawings. It goes without saying that the present invention is not intended to be limiting and may be modified and implemented as appropriate without departing from the spirit of the invention. As described above, according to the present invention, in the lint collection structure using an agitator, the water passage from the inside of the cylindrical part of the agitator soil part to the widening part of the agitator soil part can be formed without increasing the size of the agitator, and the lint collection performance is improved. It was created in such a way that it could greatly enhance the

In addition, the bottom wall of the water passage is removable, so even if the water passage becomes clogged with lint, it can be easily removed.
Moreover, when the agitator is molded from resin, the same molding becomes easy. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view of an agitator-type washing machine according to an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of its agitator, and FIG. 3 is a sectional view taken along the line A-A in FIG. 2. .

3...Washing and dehydration tank, 4...Dehydration shaft,
5... Agitator, 6... Clothing agitation blade, 7... Washing shaft, 9... Lint filter, 5a... Cylindrical part (cylindrical part), 5b
...hole, 10 ... water passage, 10a...
...Bottom wall.

Claims (1)

[Scope of Claims] 1. A dehydration shaft to which a washing/dehydration tank is fixed and a washing shaft to which an agitator is attached are coaxially arranged, and both shafts are connected to a motor shaft of a motor via a washing/dehydration switching clutch. ,
The agitator type washing machine is configured such that the agitator rotates forward and backward during washing, and the agitator has a substantially conical shape, and a cylindrical part having a hole in the peripheral wall is provided at the upper part of the agitator. A removable lint filter is provided inside the agitator, and stirring blades extending vertically are provided on the outer circumferential surface of the widening part at the bottom of the agitator, one end of which is connected to the cylindrical part, and the other end is connected to the widening part of the agitator. An agitation type washing machine in which a water passage facing near the periphery of the part is provided on both sides of the root side of the blade, and a bottom wall of the water passage is detachable. 2. The water passage has a substantially triangular cross section, one wall of which is connected to the side surface of the stirring blade, and one of the remaining two walls is a partition wall at the base of the blade, 2. The agitation type washing machine according to claim 1, wherein said other portion is formed by a bottom wall.