KR0173142B1 - Pulsator structure with piston means using automatic washing machine - Google Patents

Abstract

The stirrer structure has a stirrer body and a piston means provided at an upper end of the stirrer body. The piston means has a piston member and a piston support member. The piston member has an outer sine wave forming element and an inner sine wave forming element, and a predetermined gap is maintained between the outer wave forming element and the inner wave forming element. The piston support member has a pair of ridge protrusions and a pair of claw protrusions. The piston support member is fixed in the stirrer body. The outer and inner wave forming elements of the piston member are sandwiched by a pair of mountainous projections and a pair of claw projections. During the stirring cycle, both pairs of protrusions move and vibrate vertically while vibrating along the outer wave forming element and the inner wave forming element according to the difference in the rotational movement between the stirrer body and the piston means. The tangles and uneven distribution of the garments is slowed and the movement of the garments is increased.

Description

Stirrer structure with automatic washing machine and piston means for use therein

1 is a schematic view, partly in cross section, of an embodiment of an automatic washing machine according to the invention and an agitator structure having piston means for use in the automatic washing machine;

2 is a perspective view of an agitator structure having a stirrer body and a piston means of an automatic washing machine according to the present invention.

3 is a cross-sectional view of an agitator structure having a stirrer body and a piston means of an automatic washing machine according to the present invention.

4 is a plan view of an agitator structure having a stirrer body and a piston means of an automatic washing machine according to the present invention.

Figure 5 is an enlarged cross-sectional view of the main portion showing an agitator structure for receiving the piston means of the automatic washing machine according to the present invention.

Figure 6 is an enlarged cross-sectional view of the main portion for explaining a state where the stirrer structure for accommodating the piston means of the automatic washing machine according to the present invention is in the top dead center.

FIG. 7 is an exploded view showing the relationship between the outer and inner wave forming elements of the piston member and the piston support member when the stirrer structure is at the top dead center; FIG.

8 is an enlarged cross-sectional view of the main portion for explaining a state where the stirrer structure surrounding the piston means of the automatic washing machine is at the bottom dead center.

9 is an exploded view showing the relationship between the piston member and the outer and inner wave-forming elements of the piston support member when the stirrer structure is at the bottom dead center.

10 is a plan view showing a combined structure of a cylindrical vertical body of the agitator main body and a piston support member of the piston means.

11 is a plan view of the piston member of the piston means.

FIG. 12 is a sectional view of the piston member of the piston means taken along the line XII-XII in FIG.

Figure 13 is a bottom view of the piston member of the piston means.

14 is a plan view of the piston cover cap of the piston means.

Fig. 15 is a plan view of the piston supporting member of the piston means.

FIG. 16 is a sectional view of the piston supporting member of the piston means taken along the line XVI-XVI of FIG.

FIG. 17 is an enlarged view of the claw-shaped protruding member of the piston support member of the piston means.

18 is an enlarged view showing the outer protruding member of the piston support member of the piston means.

Fig. 19 is an enlarged view showing the tongs of the piston support member of the piston means.

* Explanation of symbols for main parts of the drawings

1: stirrer 2: outer frame

4: suspension rod 5: vibration spring member

6: washing and dehydrating tank 10: driving device

18 transmission mechanism 21 cylindrical vertical body

23, 24, 25, 26: blade 27: reinforcement rib

28 fitting part 32 piston member

36 piston support member 43 cap

The present invention relates to an agitator structure having an automatic washing machine and a piston means for use in the automatic washing machine.

The invention also relates to an automatic washing machine having a stirrer structure, and more particularly to an automatic washing machine having a stirrer body and a stirrer structure provided on the stirrer body and comprising a piston means composed of a vibrating rotating portion and a vertical reciprocating portion.

Conventional automatic washing machines are largely divided into two. One of them is a vortex water type automatic washing machine and the other is a stirring water type automatic washing machine.

In a conventional vortex water type automatic washing machine, the stirrer structure is provided at the center bottom of the washing and dehydrating tank, and the vortex water flow is generated by rotating the stirrer, and the washing cycle is performed by inverting the laundry which is the laundry.

In the conventional vortex water type automatic washing machine, the rotation speed of the stirrer is high speed of 300 rpm or more, and the outer diameter of the stirrer is set smaller than about 1/2 of the inner diameter of the washing and dehydrating tank.

Therefore, a large difference occurs in the washing power due to the stirrer due to such a configuration, and the degree of damage to the garment is different between the portion where the stirrer is in direct contact with the garment and the remaining portions.

In addition, when the rotational force of the stirrer is transmitted to the clothing on top of the washing and dehydrating tank, it causes severe warping of the clothing in the washing and dehydrating tank, resulting in severe entanglement of the clothing in the washing and dehydrating tank and also Clothing will be unevenly distributed.

The above-mentioned vortex water type automatic washing machine has good characteristics in terms of washing power by a stirrer and movement of clothes in the washing and dehydrating tank, but severely entangles and unevenly distributes the clothes in the washing and dehydrating tank.

Uneven distribution of clothes in the washing and dewatering tanks leads to an imbalance in the rotational cycle, resulting in a lower dehydration initiation success rate, which is not convenient as it increases the vibration and noise of the automatic washing machine.

A vortex water flow type automatic washing machine for ameliorating the aforementioned drawbacks is disclosed in Japanese Patent Laid-Open No. 93-149789.

Conventional vortex water type automatic washing machine uses a stirrer structure having a large outer diameter, the outer diameter of the stirrer is larger than the inner diameter of the washing and dehydration tank.

That is, the ratio between the outer diameter dimension of the stirrer structure and the inner diameter dimension of the washing and dehydrating tank is set to about 0.5 to 1 and the rotational speed of the stirrer is set to less than 280 rpm. The forward and reverse inversion synchronization of this stirrer is precisely controlled at intervals of, for example, about 0.5 to 5 seconds.

Further, in the case of the above-mentioned vortex water type automatic washing machine including a stirrer having a large outer diameter, the uneven distribution of clothes and damage of clothes during the washing cycle can be improved, but the entanglement of clothes in the washing and dehydrating tank can be effectively improved. This results in an uneven distribution of clothing in the laundry and dewatering baths.

On the other hand, in the stirring water flow type automatic washing machine, the stirrer structure has a cylindrical vertical body in the center thereof, and the height of the body is higher than the normal water level. This stirrer rotates in the forward and reverse directions in a short cycle.

That is, the number of revolutions per revolution is set smaller than about 2 to 3 revolutions, which is to perform a rotary washing.

A stirrer truster installed in a stirrer structure of an automatic washing machine in an agitated water type automatic washing machine is disclosed in US Pat. No. 4,452,054.

An agitator thruster disclosed in U.S. Patent No. 4,452,054 is provided on an agitator structure of an automatic washing machine to increase clothing during the agitation operation of a washing cycle. This stirrer thruster moves in a vertical reciprocating state by using a spiral cam surface that reverses inward and outward. Drive barrels with drive pins alternately move on the inner and outer helical cam surfaces.

As the drive barrel continues to rotate clockwise, the drive pins move along the helical cam surface of the inner cam barrel, applying the inner cam barrel upwards so that the inner cam barrel carries the entire stirrer thruster upwards.

When the stirrer thruster reaches its top position, the drive lug is transferred to the ramp surface position of the inner cam barrel by the radial engagement of the ramp surface with the radially inner end of the cam lug.

As the stirrer continues to vibrate and the drive barrel continues to rotate clockwise, the drive lugs combined with the helical cam surface of the outer cam barrel will lower the outer cam barrel and the entire stirrer until the stirrer thruster reaches its lowest position. Will be moved to.

In the stirring water type automatic washing machine of the above-described type, an agitator structure having an agitator thruster is provided at the center of the washing and dehydrating tank, and the rotating washing operation is performed in the washing and dehydrating tank with little tangling and damage of the clothes, The mechanical force exerted is small compared to a vortex-flow automatic washing machine.

In addition, in the stirred water flow automatic washing machine having the stirrer thruster, since the vertical movement or displacement of the clothes in the washing and dehydrating tank decreases in proportion to the increase in the amount of the clothes, the clothes in the upper part of the washing and dehydrating tank are moved. Is difficult.

The agitator thruster disclosed in U.S. Patent No. 4,452,054 comprises three large parts: an outer cam barrel with a helical cam surface, an inner cam barrel with a helical cam surface, and a drive barrel with a drive lug.

The machining operation of forming the helical cam surface of the outer cam barrel and the helical cam surface of the inner cam barrel in the stirrer structure having the stirrer thruster takes a lot of time. In addition, the drive lug provided on the drive barrel is a separate component, and therefore, the work of installing the drive lug on the drive barrel is cumbersome.

It is an object of the present invention to provide an improved stirrer structure having an automatic washing machine and a piston means for use in the automatic washing machine, which can increase the vertical movement of the garment.

Another object of the present invention is to provide an improved stirrer structure having an automatic washing machine and a piston means for use in the automatic washing machine, which can increase the cleaning force.

It is a further object of the present invention to provide an agitator structure having an automatic washing machine and a piston means for use in the automatic washing machine, which can reduce entanglement and non-uniform distribution of clothes in the washing and dehydrating tank.

Another object of the present invention is to provide an agitator structure having an automatic washing machine and a piston means composed of a piston member and a piston support member, which can be easily and inexpensively manufactured for use in the automatic washing machine.

An automatic washing machine according to the present invention includes a washing tub and a stirrer structure which is rotatably provided at a central inner bottom of the washing tub and has a stirrer body and a piston means.

The stirrer body of the stirrer structure has a cylindrical vertical body at the center of the body, which vertical body has a hollow portion at the top thereof. The piston means of the stirrer structure is provided in the hollow portion of the cylindrical vertical body of the stirrer body.

The piston means comprises at least one piston member and a piston support member for supporting the piston member. The piston support member of the piston means is fixedly installed in the hollow portion of the cylindrical vertical body of the stirrer body. The piston member of the piston means is rotatably mounted on the piston support member and moves relative to the stirrer body and has at least one rib for contacting the laundry on the outer circumferential surface of the piston member.

A first wave forming element and a second wave forming element are provided on the piston member or the piston support member, and a predetermined constant vertical gap is formed between these wave forming elements. A first guide element for guiding the first wave forming element and a second guide element for guiding the second wave forming element are provided on the piston support member or the piston member.

During operation of the stirrer body, the first guide element and the second guide element are respectively moved along the first wave forming element and the second wave forming element according to the difference between the rotational movement of the piston support member and the rotational movement of the piston member. The piston member is reciprocated vertically and vibrated rotationally.

According to the present invention, an agitator structure having a piston means for use in an automatic washing machine is provided with a stirrer body of a stirrer structure which is rotatably provided at a central inner bottom of a washing tub and has a cylindrical vertical body at its center, It includes a piston means provided at the top.

The piston means includes a piston member, a piston support member for supporting the piston member, and a piston cover member for covering the piston member. The piston support member of the piston means is firmly mounted on top of the cylindrical vertical body of the stirrer body.

The piston member of the piston means is rotatably provided on the piston support member and moved relatively against the stirrer body, the piston member having at least one rib for contacting the laundry on the outer circumferential surface of the piston member.

The piston member includes a first wave forming element and a second wave forming element, and a predetermined constant vertical gap is formed between the surface of the first wave forming element and the surface of the second wave forming element.

The piston support member includes a first guide element for guiding a first wave forming element of the piston member and a second guide element for guiding a second wave forming element of the piston member.

According to the invention, the operating relationship to the circulation or displacement of the laundries during the laundering and stirring cycles is as follows.

When the operation of the stirrer is switched from the normal rotation to the reverse rotation, there is a difference in the circumferential speed between the laundry at the outer circumference of the stirrer and the laundry at the center of the stirrer in the washing and dehydration tank.

In this case a slight entanglement of the laundry occurs in the laundry and dehydration tank, and the laundry in the outer circumference is pulled closer toward the center. The closely pulled laundry is pushed toward the upper side to perform the circulation of the laundry. At this time, the circulation of the laundry is effectively promoted in the case where the vertical reciprocation and the vibration movement of the piston means are added to the laundry.

When the height of the cylindrical vertical body of the stirrer body is set near the rated water level, the laundry hardly winds around the cylindrical vertical body and the nonuniform distribution of the laundry is almost eliminated, but the movement of the laundry becomes worse.

Conversely, when the height of the cylindrical vertical body of the stirrer body is set lower than the rated water level, the movement of the laundry becomes good but the entanglement of the laundry and the uneven distribution of the laundry increase. Therefore, it is desirable to set an appropriate height of the cylindrical vertical body of the stirrer body to effectively promote the circulation of the laundry.

According to the present invention, the entanglement and uneven distribution of the laundry in the laundry and dewatering bath can be effectively reduced.

According to the present invention, the circulation of the laundry can be effectively promoted because the vertical reciprocation and the vibration movement of the piston means are added to the laundry.

An embodiment of an agitator structure having an automatic washing machine according to the invention and a piston means for use in the automatic washing machine will be described with reference to the drawings.

In FIG. 1, the automatic washing machine mainly comprises an agitator 1 having an agitator body 1a and a piston means 32A, an outer frame 2, an outer water tank 3, a washing and dewatering tank 6, And a drive device 10 and a drainage device 13.

The box-shaped outer frame 2 is made of steel sheet, and the outer water tank 3 made of synthetic resin is supported in the outer frame 2 via the suspension rod 4 and the vibration spring member 5. In the outer tank 3, a circular washing and dewatering tank 6 made of synthetic resin is provided.

At the upper end of the washing and dewatering tank 6, a balance ring made of synthetic resin is installed by friction welding operation. A stirrer 1 having a large outline is mounted on the central portion of the central inner bottom of the washing and dehydrating tank 6.

A water tank cover 16 made of synthetic resin is fixed to an upper end of the external water tank 3, and the water tank cover 16 is formed into a space formed between the external water tank 3 and the washing and dehydrating water tank 6 such as clothes. Prevent laundry from entering

In the outer bottom part of the external water tank 3, a drainage device 13 and a drive device 10 for rotating the stirrer and the washing and dehydrating water tank 6 are installed through the metal support part 7. The metal support part 7 is fixed to the outer bottom of the outer tank 3 by screws or the like.

The drainage device 13 includes a drain valve 12 and a drain hose 14. The drain valve 12 is connected to the inner bottom of the outer water tank 3, and the drain hose 14 is connected to the drain valve 12.

The drive device 10 includes a washing motor 9 for driving the washing and dewatering tank 6, a clutch mechanism, a transmission mechanism 18 for shifting the rotation of the washing motor 9, and a washing and dewatering tank. A braking device for braking (6) and a deceleration mechanism for transmitting the rotation of the washing motor 9 to the stirrer 1 by reducing the rotation of the washing motor 9.

Next, the stirrer 1 which has the stirrer main body 1a and the piston means 32A is demonstrated in detail.

As shown in FIG. 2, the stirrer 1 comprises the stirrer main body 1a and the piston means 32A provided in the upper part of the stirrer main body 1a. The piston means 32A includes a piston member 32, a piston support member 36 for supporting the piston member 32, and a cap 43 for covering the piston member 32.

The piston support member 36 of the piston means 32A is firmly attached to the stirrer body 1a. This piston member 32 is rotatably mounted to the piston support member 36 and the cap 43 is removably mounted on top of the piston member 32.

The stirrer main body 1a of the stirrer structure 1 is demonstrated in detail. According to FIGS. 2 and 4, the stirrer body 1a of the stirrer 1 has a large circular base 20, a cylindrical vertical body 21, a set of main blades 22, and a set of main blades 23. ), Four small blades 24, eight small blades 25, radially formed rear blades 26, ring-shaped reinforcing ribs 27, fittings 28 provided on the rotation shaft 46 of the drive device 10. ) And the boss 29.

The cylindrical vertical body 21 of the stirrer main body 1a is provided on the center part of the base 20, and protrudes upwards. The two main blades 22 and 23 are formed to protrude from the outer periphery of the base 20 toward the upper end of the cylindrical vertical body 21.

The cylindrical vertical body 21 is configured to form an outer peripheral surface comprising a curved surface and a plane. The small blades 24, 25 are provided on the intermediate portion between the main blade 22 and the main blade 23.

The stirrer body 1a of the stirrer structure 1 is made of chemically stable polypropylene resin. The upper end of the cylindrical vertical body 21 is formed of a hollow part 30 having a bottom part. The piston support member 36 of the piston means 32A is provided and fixed to the hollow portion 30 opened upward of the cylindrical vertical body 21 of the stirrer body 1a.

At the bottom 31 of the cylindrical vertical body 21 of the stirrer main body 1a, the boss 29 is provided and the reinforcement rib 26a formed in the radial direction is provided on the boss 29. As shown in FIG.

The cylindrical piston member 32 of the piston means 32A will be described in detail. According to FIGS. 2 and 11 to 13, the piston member 32 of the piston means 32A has a double cylindrical structure composed of an outer cylindrical member 50 and an inner cylindrical member 51.

The piston member 32 of the piston means 32A comprises three ribs 33, the outer ring wave forming element 34 and the inner ring wave forming element, the outer cylindrical member 50 being symmetrically provided on the upper periphery. 35).

This outer wave shaping element 34 has a wave shaping plane for vibrating rotation and vertical reciprocating motion with the stirrer body 1a, and the inner wave shaping element 35 also vibrates rotation and vertical reciprocation with the stirrer body 1a. It has a wave shaping plane for movement.

The rib 33 of the piston member 32 can accommodate the resistance of the garment due to the direct contact of the garment with the rib 33. The resistance generated by the direct contact of the garments in the washing and dewatering tank 6 serves to rotate the piston member 32 and the stirrer body 1a together.

The piston member 32 is formed at the rear upper portion of the piston member 32 and is provided between the outer cylindrical member 50 and the inner cylindrical member 51. The outer wave forming element 34 has a wave forming curved surface having the same width in the radial direction, and the surface of the outer wave forming element 34 faces downward.

The inner wave forming element 35 of the piston member 32 is formed in the inner cylindrical member 51 of the piston member 32. The inner wave shaping element 35 has a wave shaping curved surface having the same width in the radial direction, and the surface of the inner wave shaping element 35 faces upward.

In this embodiment of the invention, the outer wave shaping element 34 is positioned above the inner wave shaping element 35. The diameter of the outer wave shaping element 34 is formed larger than the diameter of the inner wave shaping element 35. That is, the outer wave forming element 34 is disposed outside the outer circumferential portion of the inner wave forming element 35 and is disposed at an upward position than the installation position of the inner wave forming element 35.

Each of the surface of the outer wave shaping element 34 and the surface of the inner wave shaping element 35 of the post piston member 32 are each formed in two cycles of a sinusoidal shape forming a horizontal axis orthogonal to the vertical axis of the stirrer body 1a. It is.

The bottom surface of the outer wave forming element 34 of the piston member 32 is formed sinusoidally. The outer wave forming element 34 has an amplitude a as shown in Figs. 7, 9 and 12, and two cycles are formed at the periphery.

In addition, the upper surface of the inner wave forming element 35 is also formed into a sinusoidal wave. The inner wave shaping element 35 of the piston member 32 also has an amplitude a as shown in FIGS. 7, 9 and 12 and has two cycles at the periphery, similar to the outer wave shaping element 34. Formed.

The bottom wave shaping surface of the outer wave shaping element 34 is located above the wave shaping surface of the inner wave shaping element 35. That is, the sinusoidal wave forming surface of the outer wave forming element 34 has a predetermined constant interval with respect to the sinusoidal wave forming surface of the inner wave forming element 35 as shown in FIGS. 7, 9 and 12. value).

3 and 5, the cross section half on the left side shows the state in which the stirrer structure 1 is at the top dead center, and the cross section half on the right side shows the state in which the stirrer structure 1 is at the bottom dead center.

When the stirrer structure 1 is at top dead center, the piston means 32A is also at top dead center. In addition, when the stirrer structure 1 is at the bottom dead center, the piston member 32 of the piston means 32A is also at the bottom dead center.

3, 5, 6 and 8, the piston means 32A of the stirrer structure 1 is in the top dead center and the piston means 32A of the stirrer structure 1 The height difference in the vertical direction between the states at the bottom dead center is shown as the value a.

The above-mentioned amplitude (a) of the outer wave forming element 34 of the piston means 32A and the above-mentioned amplitude (a) of the inner wave forming element 35 of the piston means 32A are formed of the stirrer structure 1. Each is set according to the above-mentioned difference with the amplitude (a) in the vertical direction of the piston means 32A.

As shown in FIG. 6, when the diameter of the outer wave forming element 34 is set to a value D, the length of one cycle of the outer wave forming element 34 is as shown in FIGS. It is given by πD / 2. The diameter of the inner wave shaping element 35 is set to the d value and the length of one cycle of the inner wave shaping element 35 is given by [pi] d / 2 as shown in FIGS.

Meanwhile, a predetermined constant interval or distance in the vertical direction between the lower wave forming surface of the outer wave forming element 34 and the upper wave forming surface of the inner wave forming element 35 is shown in FIGS. 7 and 8. It is determined to keep the value of L as

The piston member 32 of the piston means 32A is made of polyamide resin or polyacetal resin for the purpose of preventing friction due to load and mechanical strength.

Piston member 32 of piston means 32A having an outer cylindrical member 50 having a rib 33 and an outer wave forming element 34 and an inner cylindrical member 51 having an inner wave forming element 35. Is integrally molded by an integral molding process.

A cap 43 for covering the piston member 32 of the piston means 32A is provided on the upper periphery of the piston member 32 and is elastically fixed to the piston member 32 by forceps. As shown in FIGS. 2 and 14, the cap 43 includes two air bleed holes 44 and cylindrical ribs 45. The cap 43 is detachably mounted on the piston member 32 and the piston member 32 mounted to the piston member 43 mounted on the cap 43 is fixed in the piston support member 36 so that the entire piston means. It constitutes 32A.

The cap 43 of the piston means 32A is made of polyamide resin or polyacetal resin for the purpose of preventing friction due to load and mechanical strength. The piston cover cap 43 is integrally molded by an integral molding process.

The vertically extending cylindrical piston support member 36 of the piston means 32A is described in detail. As shown in FIGS. 2 and 15 to 19, the piston support member 36 of the piston means 32A has an outer cylindrical member 52 and an inner cylindrical member 53 and four radii for connecting them. And a fan-shaped connecting rib 55 extending in the direction.

The outer cylindrical member 52 has four claw-like members (37, hereinafter referred to as downwardly protruding claw members) protruding downward, and a pair of mountain-shaped members 40 (hereinafter, upwardly protruding ridge members) protruding upward. The inner cylindrical member 53 is provided with a pair of forceps-type members 41 (hereinafter referred to as an upward protrusion forceps-type member) and a pair of semi-circular upward protrusions 54.

A pair of upwardly protruding ridge members 40 of the piston support member 36 guides the lower surface of the outer wave forming element 34 of the piston member 32. A pair of upwardly protruding tongs 41 of the piston support member 36 guides the upper surface of the inner wave-forming element 35 of the piston member 32.

The large outer cylindrical member 52, the small inner cylindrical member 53, and the four connecting ribs 55 are shaped by an integral molding method like the piston support member 36. The four downwardly protruding nipper-like members 37 of the piston support member 36 are arranged symmetrically and project downwardly toward the outer cylindrical member 52 of the piston support member 36. The tip of each of the four tongs-shaped means provided on the four downwardly protruding nipper-like members 37 has a protruding length longer than the inner upper end face 39 of the cylindrical vertical body 21 of the stirrer body 1a. Thus good work characteristics can be obtained when dismantling parts.

A pair of upwardly protruding ridge members 40 of the piston support member 36 is provided symmetrically upwardly on the circumference of the outer cylindrical member 52 of the piston support member 36 and integrally provided with the piston support member 36. .

On the other hand, the pair of upwardly protruding ridge members 40 is arranged directly above two of the claw-like means of the four claw-like means of the four downwardly protruding claw-like members 37. A pair of upwardly protruding ridge members 40 is provided to face the surfaces of the outer wave forming element 34 of the piston member 32.

A pair of inner upwardly protruding nipper-like members 41 of the piston support member 36 is provided symmetrically upwards on the circumference of the inner cylindrical member 53 and integrally provided with the piston support member 36. Further, each tip surface of the guide portion provided on the tip portion of the pair of upwardly projecting claw members 41 protrudes outward so as to contact the internal wave forming element of the piston member 32.

Guide portions of the pair of upwardly protruding claws members 41 are provided to face the upper surface of the inner wave-forming element 35 of the piston member 32. On the other hand, the pair of upper protruding claws 41 and the pair of upper protruding ridges 40 are arranged along one line in the same radial direction. That is, the inner upwardly protruding claw member 41 is provided to face the pair of upwardly protruding ridge members 40.

The piston support member 36 of the piston means 32A is made of polyamide resin or polyacetal resin for the purpose of preventing friction due to load and mechanical strength.

An outer cylindrical member 52 having a pair of downwardly projecting claw members 37 and an upwardly projecting ridge member 40 and an inner cylindrical member 53 having a pair of upperly projecting claw members 41 and four connecting ribs 55. The support member 36 of the complicated structure of the piston means 32A provided with () is integrally molded by an integral molding process.

The piston supporting member 36 having the piston member 32 and the cap 43 is elastically fixed to the fixing hole 38 of the stirrer body 1a by four clamping means of the downwardly protruding clamping member 37. It is fixed. A fixing hole 38 is provided in the lower part of the cylindrical vertical body 21 of the stirrer occupancy body 1a. Thus, the piston support member 36 of the piston means 32A is firmly engaged in the stirrer body 1a.

In the above-described embodiment according to the invention, the piston means 32A consists of three parts comprising the piston member 32, the piston support member 36 and the cap 43. Further, the piston member 32 including the cap 43 can be easily combined and manufactured as the overall piston means 32A by inserting and fixing the piston member 32 into the piston support member 36.

By means of the agitator structure 1 described above, the pair of upwardly protruding ridge members 40 and the pair of upwardly protruding claw members 41 of the piston support member 36 are combined with the external wave-forming element 34 of the piston member 32. The inner wave shaping element 35 is inserted.

In the above embodiment according to the present invention, the outer wave forming element 34 and the inner wave forming element 35 of the piston member 32 are upwardly protruding ridge member 40 and upwardly protruding claws of the piston support member 36. The member 41 is firmly inserted upwards and downwards.

When the rib 33 provided on the piston member 32 receives resistance by clothing due to the direct contact with the rib 33, it causes the piston member 32 to rotate.

When the piston member 32 rotates, both the pair of upwardly protruding ridge members 40 of the piston support member 36 and the pair of upwardly protruding claw members 41 respectively represent the external wave forming elements of the piston member 32. 34 and move against the inner wave-forming element 35.

Thus, the piston member 32 of the piston means 32A can reciprocate vertically, oscillate and rotate. At this time, the up-and-down stroke of the piston member 32 can reciprocate twice in the up-down direction with one stroke (a), as shown in FIGS. 7 and 9.

The stroke value a of the piston member 32 described above is determined according to the different height value a in the vertical direction of the piston means 32A of the stirrer structure 1.

The action for rotation of the piston member 32 of the piston means 32A is demonstrated in detail. Since the piston member 32 is rotatably mounted to the piston support member 36, vibration by the stirrer structure 1 and resistance by clothing during the washing cycle are applied to the ribs 33 of the piston member 32, or Or is added.

A relative rotational motion then takes place between the stirrer body 1a and the piston member 32 such that the piston member 32 of the piston means 32A rotates relative to the stirrer body 1a. That is, the piston member 32 of the piston means 32A can rotate with respect to the piston support member 36 of the piston means 32A and also the cylindrical vertical body 21 of the stirrer body 1a.

In addition, the piston means 32A is fixed in the hollow portion 30 of the cylindrical vertical body 21 of the stirrer body 1a with a constant gap by using the piston support member 36.

Thus, the two main blades 22 and the two main blades 23 extend toward the upper end of the cylindrical vertical body 21 as shown in FIGS. 2 and 3 in the embodiment according to the present invention. High washing effect can be obtained.

In addition, a plurality of holes 42 are provided at the shortest end of the lower portion 31 of the cylindrical vertical body 21 of the stirrer body 1a in order to prevent the movement from being lowered due to the residual of detergent and sand. It is spaced apart by the distance g from the lower side of the sliding part shown in FIG.

On the other hand, a suitable gap is formed between the lowermost end of the outer shape and the lower portion 31 of the cylindrical vertical body 21 of the stirrer body 1a at the bottom dead center of the piston member 32.

In the above-described embodiment according to the present invention, the operation and the size of the piston member 32 of the piston means 32A will be described.

The inventor of the present invention confirmed the following facts. The piston member 32 of the piston 32A when the rotation speed of the stirrer main body 1a is 100 to 280 rpm, the stirrer main body 1a rotates in reverse for a short period of time, and the outer diameter of the stirrer main body 1a is 350 to 400 mm. The ratio between the outer diameter of c) and the outer diameter of the stirrer body 1a is formed between about 0.1 and 0.3.

Moreover, it is preferable to make the frequency of the piston member 32 of the piston means 32A 1 to 4 times per turn of the stirrer main body 1a.

In this embodiment according to the invention, the piston cover cap 43 mounted on the piston member 32 has two air bleed holes 44 and cylindrical ribs 45 as shown in FIG. . Accordingly, the cylindrical rib 45 of the cap 43 can prevent the disconnection due to the lowering of the upwardly protruding tongs member 41 of the piston support member 36.

In addition, by removing the piston cover cam 43 from the piston member 32, the operator can access the screw member 47 which fixes the stirrer body 1a to the rotation shaft 46 as shown in FIG. have. When the cap 43 is removed from the piston member 32, as shown in FIGS. 4 and 9, the tongs-shaped member and the recess of the piston member 32 integrally provided with the cap 43 are shown. A screw can be inserted between the 49 and also removable by lifting.

Next, the washing effect by the installation of the piston member 32 of the piston means 32A which concerns on this invention is demonstrated.

As described above, when the height of the cylindrical vertical body 21 provided on the central portion of the stirrer body 1a is equal to the rated water level, using such a long cylindrical vertical body 21 may be used for washing and dehydration tanks. Tangle of the clothes in 6) hardly occurs, and there is less distribution of uneven distribution of the cloth in the washing and dewatering tank 6.

However, the movement of the garment in the washing and dehydrating tank 6 becomes very poor in rated capacity, especially in the part surrounding the upper part of the washing and dehydrating tank 6, which is the upper part of the moving part of the garment in the washing and dehydrating tank 6. Makes a bad appearance.

On the other hand, when the height of the cylindrical vertical body 21 of the stirrer body 1a is set lower than the rated water level, the movement of the clothes in the washing and dewatering tank 6 is carried out in the washing and dewatering tank 6. Makes a good appearance at the top of the moving part of the garment.

However, since the rotational force of the stirrer structure 1 is transmitted to the clothes, the clothes are entangled with each other in the washing and dehydrating tank 6, and the entanglement of the clothes in the washing and dehydrating tank 6 and the uneven distribution of the clothes are increased.

In this embodiment according to the present invention, a fully automatic washing machine having a washing and dehydrating tank is illustrated, but the present invention can be applied to an automatic washing machine having a washing tank. In the present invention, the washing tank means washing and dehydrating tank.

On the other hand, in the above embodiment according to the present invention, the outer wave forming element 34 and the inner wave forming element 35 are provided on one side of the piston member 32 and the upper protruding ridge member 56 and the upper protruding claw type A member 41 is provided on one side of the piston support member 36.

However, the outer wave forming element 34 and the inner wave forming element 35 are provided on one side of the piston support member 36, and the upwardly protruding ridge member 40 and the upwardly protruding claw member 41 are provided by the piston member ( It is also possible to make the piston means 32A structure provided on one side of 32.

Claims (27)

And a stirrer structure rotatably provided at a central inner bottom of the rinsing tank, the stirrer body having a stirrer body and a piston means, the stirrer body of the stirrer structure having a cylindrical vertical body at its center, the cylindrical vertical body being And a piston means of the stirrer structure on the hollow portion of the cylindrical vertical body of the stirrer body, the piston means having one or more piston members and a piston support member for supporting the piston member. And the piston support member of the piston means is fixedly mounted on the hollow portion of the cylindrical vertical body of the stirrer body, and the piston member of the piston means is rotatably provided on the support member relative to the stirrer body. Moved to the piston member or the A first wave forming element and a second wave forming element are provided on the stone support member, and the first guide element and the second wave forming for guiding the first wave forming element on the piston support member or the piston member. A second guide element for guiding the element is provided and, during operation of the agitator body, according to the difference between the rotational movement of the piston support member and the rotational movement of the piston member, the first guide element and the second guide. And the element moves along the first wave forming element and the second wave forming element, respectively, so that the piston member rotates while reciprocating and oscillating in the vertical direction. The method of claim 1, wherein the first wave forming element and the second wave forming element are provided on the piston member, and both the first guide element and the second guide element are provided on the piston support member. Washing machine made with. The automatic washing machine according to claim 1, wherein both of the first guide element and the second guide element are provided in plurality. The automatic washing machine according to claim 1, wherein the diameter of the first wave forming element is different from the diameter of the second wave forming element. 2. The automatic washing machine according to claim 1, wherein each of the surface of the first wave-forming element and the surface of the second wave-forming element are each formed by one or more sinusoidal cycles which make a horizontal axis perpendicular to the vertical axis of the stirrer body. . The method of claim 1, wherein a plurality of through portions for connecting to the drainage passage are provided at the inner bottom of the piston support member, and the plurality of through portions are provided at a position lower than the position of the lowest height of the piston means. Automatic washing machine characterized. 2. The automatic washing machine according to claim 1, wherein each of the piston member and the piston support member is separate from the cylindrical vertical body of the stirrer body and configured separately. 8. The automatic washing machine according to claim 7, wherein the stirrer body is made of polypropylene resin material, and the piston member and the piston support member of the piston means are made of polyacetal resin material or polyamide resin material. 2. The piston member of claim 1 wherein the piston member of the piston means is a separate component separate from the piston support member and is integrally molded by an integral molding method, wherein the piston support member of the piston means is a separate component separated from the piston member. And integrally molded by an integral molding method. The automatic washing machine according to claim 1, wherein the piston member and the piston support member are integrated into one body, and the integrated body is fixedly mounted in a cylindrical vertical body of the stirrer body. 2. The piston according to claim 1, wherein the piston means is provided in the range of the inner diameter of the cylindrical vertical body of the stirrer body, and the plurality of main blades of the stirrer body is near the upper end of the range of the outer diameter of the cylindrical vertical body of the stirrer body. Automatic washing machine, characterized in that formed. The automatic washing machine according to claim 1 or 11, wherein a gap is formed between the inner bottom of the cylindrical vertical body of the stirrer body and the position of the lowest height state of the piston means. According to claim 1, wherein the outer diameter of the piston means is set to 0.1 times to 0.3 times the outer diameter of the stirrer body, the height of the piston means is set to 0.1 times to 0.5 times the height of the stirrer body, the vertical movement of the piston means Automatic washing machine is set to 1 to 4 times per one revolution of the stirrer body. A stirrer structure having piston means for use in an automatic washing machine, comprising: a stirrer body of a stirrer structure rotatably provided at a central inner bottom of a washing tank, the stirrer body having a cylindrical vertical body at its center, and having a piston Means are provided on an upper end of the cylindrical vertical body of the stirrer body, the piston means having a piston member, a piston support member for supporting the piston member, a piston cover member for covering the piston member, The piston support member of the piston means is fixedly mounted on the upper end of the cylindrical vertical body of the stirrer body, and the piston member of the piston means is rotatably provided on the piston support member with respect to the stirrer body. Relatively moved The piston member includes a first wave forming element and a second wave forming element, the piston supporting member having a first guide element for guiding the first wave forming element of the piston member and the second of the piston member. And a second guide element for guiding the wave forming element, and during operation of the stirrer body, in accordance with the difference between the rotational movement of the piston support member and the rotational movement of the piston member comprising the piston cover member; The first guide element and the second guide element of the piston support member respectively move along the first wave forming element and the second wave forming element of the piston member, so that the piston member reciprocates and vibrates in a vertical direction and rotates. Stirrer structure, characterized in that. 15. The stirrer structure according to claim 14, wherein said piston cover member of said piston means is detachably mounted to said piston member. 15. The stirrer structure according to claim 14, wherein the first guide element and the second guide element of the piston support member are each provided in plural. 15. The stirrer structure according to claim 14, wherein a diameter of the first wave forming element of the piston member is different from a diameter of the second wave forming element of the piston member. 15. The apparatus of claim 14, wherein each of the surface of the first wave-forming element of the piston member and the surface of the second wave-forming element of the piston member are each in one or more sinusoidal cycles creating a horizontal axis perpendicular to the vertical axis of the stirrer body. Stirrer structure, characterized in that it is formed. 19. The apparatus of claim 18, wherein each of the surface of the first wave-forming element of the piston member and the surface of the second wave-forming element of the piston member are each in two sinusoidal cycles creating a horizontal axis perpendicular to the vertical axis of the stirrer body. Stirrer structure, characterized in that it is formed. 15. The stirrer structure according to claim 14, wherein each of said piston member, said piston support member and said piston lid member is separate from said cylindrical vertical body of said stirrer body and configured separately. 15. The stirrer structure according to claim 14, wherein the stirrer body is made of polypropylene resin material, and the piston member, the piston support member and the piston cover member are made of polyacetal resin material or polyamide resin material. . The piston member of claim 14, wherein the piston member of the piston means is a separate component separate from the piston support member and the piston lid member and integrally molded by an integral molding method, wherein the piston support member of the piston means Is a separate part separated from the piston member and the piston cover member and integrally molded by an integral molding method, wherein the piston cover member of the piston means is a separate part separated from the piston member and the piston support member An agitator structure, characterized in that integrally molded by an integral molding method. 15. The method of claim 14, wherein the piston member, the piston support member and the piston cover member are integrated into a body by piston means, the integrated body being fixedly mounted in the cylindrical vertical body of the stirrer body. Stirrer structure. The automatic washing machine according to claim 1, wherein the piston member has one or more ribs used to connect to the washing machine on the outer circumferential surface of the piston member. 15. The stirrer structure of claim 14, wherein the piston member has one or more ribs used to connect to the washing machine on the outer circumferential surface of the piston member. And a stirrer structure rotatably provided at a central inner bottom of the rinsing tank, the stirrer body having a stirrer body and a piston means, the stirrer body of the stirrer structure having a cylindrical vertical body at its center, the cylindrical vertical body being And a piston means of the stirrer structure on the hollow portion of the cylindrical vertical body of the stirrer body, the piston means having one or more piston members and a piston support member for supporting the piston member. And the piston support member of the piston means is fixedly mounted on the hollow portion of the cylindrical vertical body of the stirrer body, and the piston member of the piston means is rotatably provided on the support member relative to the stirrer body. Moved to the piston member or the The first wave-forming element and the second wave-forming element are provided on the stone support member, and the surface of the first wave-forming element and the surface of the second wave-forming element each have a curved shape which makes a horizontal axis perpendicular to the vertical axis of the stirrer body. And a first guide element for guiding the first wave-forming element on the piston support member or the piston member and a second guide element for guiding the second wave-forming element, In operation, according to the difference between the rotational movement of the piston support member and the rotational movement of the piston member, the first guide element and the second guide element are along the first wave forming element and the second wave forming element. And the piston members rotate while vibrating and vibrating in the vertical direction, respectively. A stirrer structure having a piston means for use in an automatic washing machine, comprising: a stirrer body of a stirrer structure rotatably provided at a central inner bottom of a washing tank, the stirrer body having a cylindrical vertical body at its center; A piston means is provided on the upper end of the cylindrical vertical body of the stirrer body, the piston means having a piston member, a piston support member for supporting the piston member, and a piston cover member for covering the piston member; And the piston support member of the piston means is fixedly mounted on the upper end of the cylindrical vertical body of the stirrer body, and the piston member of the piston means is rotatably provided on the piston support member to the stirrer body. Relative to the The piston member has a first wave-forming element and a second wave-forming element, each formed in a curved shape in which the surface of the first wave-forming element and the surface of the second wave-forming element make a horizontal axis perpendicular to the vertical axis of the stirrer body. Wherein the piston support member has a first guide element for guiding the first wave-forming element of the piston member and a second guide element for guiding the second wave-forming element of the piston member; During operation of the main body, according to the difference between the rotational movement of the piston support member and the rotational movement of the piston member including the piston cover member, the first guide element and the second guide element of the piston support member are connected to the piston member. Move along the first wave shaping element and the second wave shaping element, respectively, so that the piston member reciprocates and vibrates in a vertical direction. Stirrer structure characterized in that the rotation.