JPH0461893A - Jet flow automatic reversal type washing method and washing machine therefor - Google Patents

Abstract

PURPOSE:To enable the size of the washing drum portion of a washing machine to be reduced to such an extent as allowing portability by cleaning a wash with a fluid flow in such a way as to cause the vertical motion of the wash, twist the wash or releasing the wash from twisting, and further causing a wrinkling effect on the wash pressed to upper and lower mesh surfaces in an inner cage with a jet flow. CONSTITUTION:A meshed inner cage 4 is provided within an outer casing 1 for stowing a wash, and filled with a cleaning fluid while being exhausted of the air. In addition, an eddy jet flow is generated in such a way as to repeat a vertical and reversal flow in the cage 4, and the wash is vertically moved according to the flow. The wash is wrinkled and released from wrinkling for cleaning with the fluid. Furthermore, the wash is pressed with a jet flow against upper and lower meshed surfaces in the cage 4, thereby giving a wrinkling cleaning effect. According to the aforesaid construction, the wash can effectively be cleaned in a short time without any damage.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention uses a new washing method that is different from the washing method of conventional electric washing machines to prevent laundry from becoming damaged and achieves excellent washing effects. The present invention relates to a jet automatic reversing type washing method and a washing machine thereof, in which the size of the washing tub can be made small enough to be portable.

(Conventional technology) The washing methods of electric washing machines that have been developed so far are: (a) WI agitation type (b) Jet flow type (c) Automatic reversal i#1 winding type (d) Jet water flow type (e) Vibration Method (f) There are rotating drum methods, etc., but methods with strong cleaning power like (b) and (c) above tend to damage laundry, and (b) and (c).
Methods (d), (e), and (f) rarely damage the laundry, but they have the disadvantages of weak cleaning power, easy washing unevenness, and long washing time.

In addition, the structure of conventional washing machines is such that the washing liquid is placed in an open container (washing tub), a pump is used to generate a liquid flow, and the washing is performed using the liquid flow, so a sufficient liquid flow is generated. In order to do this, it is necessary to provide a planar area that is large enough to fit inside the washing tub, which limits the ability to make electric washing machines smaller.

(The problem that the invention aims to solve!) This invention was made in view of the above circumstances, and its purpose is to simultaneously perform liquid washing and massaging, and to create a jet automatic machine that is compact enough to be portable. It is an object of the present invention to provide an inversion type washing method and a washing machine therefor.

(Means for Solving the Problems) In order to achieve the above object, the automatic jet reversal type washing method and washing machine of the present invention have the following features: The outer cylinder is filled with washing liquid while discharging the air, and a swirling jet is generated that repeatedly reverses in the vertical direction inside the cylinder, and the laundry is moved up and down according to the flow to cause curling and return. At the same time, the above object is achieved by applying a massaging action by pressing the laundry onto the upper and lower inner mesh-like surfaces with a jet stream.

(2) In addition, there is a vertical cylindrical washing tub outer cylinder with a spiral protrusion line on the inner wall of the cylinder that induces and promotes the generation of swirling water flow, and a rotatable outer cylinder installed in the center of the outer cylinder. A cylindrical wire mesh inner basket, an upper lid with a circulating water inlet/outlet and an air valve that can seal the upper part of the outer cylinder while maintaining waterproofness, and a wire mesh inner lid for the inner basket is held inside with a support rod, and a lower part of the outer cylinder. It consists of a jet pump unit equipped with a multi-blade propeller blade that is installed in a waterproof manner and is rotatable in forward and reverse directions to generate a swirling jet in the washing liquid filled inside the outer cylinder, and a drive unit having a circulating water inlet and outlet. The washing tub and the control box that automatically controls the injection, circulation, and discharge of water into the washing tub and the operation of the jet pump unit are connected with hoses and electric cords to create a closed circulation circuit for washing water. The above objectives have been achieved.

(Function) The jet flow automatic reversal type washing method and washing machine of the present invention having the above-mentioned configuration consist of three parts: a washing tub having an outer cylinder, a driving part thereof, and a separate control device part that supplies washing water. Inside the sealed vertical cylindrical outer cylinder, there is a liquid cleaning action by a swirling jet that alternately reverses and repeatedly flows upwards and downwards, and a mesh-like upper and lower interior that holds the laundry. This is a new washing method that combines a type of washing action in which jets are alternately pressed strongly against the laundry on both sides to prevent damage to the laundry while providing excellent cleaning power.

In addition, the washing machine has been made more compact by sealing the washing liquid circulation circuit and placing a washing tub in the center containing a multi-blade propeller-type jet pump that easily generates an optimal swirling water flow.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 is a structural diagram of an automatic jet reversing type washing machine, and FIG. 2 is a perspective view thereof.

In FIGS. 1 and 2, reference numeral 1 in the figures represents a cylindrical outer cylinder. This outer cylinder 1 is made of a cylindrical body made of plastic, for example, and is provided with a mesh-like rotatable interior 4 inside.
In addition, a drive unit 7 in which a supply/drainage circulating water hose insertion port 2, a jet pump unit 3, a pump drive motor 5, a motor 6 for dewatering rotation of the interior 4, etc. are built into the bottom part.
is ready to be installed. Further, the bottom Fi7A of the drive unit 7 is made of metal and is screwed to be detachable.

In order to induce, promote, or amplify the generation of the swirling water flow inside the outer cylinder 1, spiral protrusion lines 8, two in this example, are provided at opposing positions on the inner wall of the outer cylinder 1. . A threaded portion is provided on the upper outer periphery of this outer cylinder l, and the upper M
9 can be attached and detached by screwing, for example. Also,
This upper cover 9 is also made of plastic, and the top of the upper cover 9 is provided with an attachment port 12 for attaching an air valve 10 and a circulation hose 11.

Thus, inside the outer cylinder 1, a cylindrical inner layer 4 made of anticorrosive mesh is provided. Of these, 1fi4 consists of a cage whose entire outer periphery is covered with a fine rust-proof wire mesh such as stainless steel, and a mesh-like inner lid 4a is removably provided on the top of this inner layer 4, and this inner lid 4a is outer cylinder 1
It is located on the upper lid 9 side in a form that hangs from the center point 14 of the support shaft provided on the back side of the upper lid 9, which is removably attached to the upper part of the
It can be attached and detached in conjunction with the attachment and detachment of the upper lid 9, thereby making it possible to insert and remove laundry into and from the inner tray 4. Note that a mesh-like bottom part is provided on the bottom surface of the inner part [4]. In addition, this inner layer 4 is housed and fixed within a cylindrical rust-proof metal outer frame a to prevent deformation during washing operations.

In addition, above and below the outer periphery of this outer frame a, there are inner layers 4 as described later.
A pulley is provided to prevent vibration when the wheel rotates.

Further, rust-proof metal bands 13 and 13' are provided above and below I4, reinforcing the upper and lower edges of the inner layer 4, and six support rods 13a, 13a are provided from the bands 13 and 13', respectively.
extends to the center, and the upper center is rotatably supported by a support shaft center point 14 provided on the back side of the upper lid 9. On the other hand, six support rods 13' extending from the lower band 13° are screwed onto the drive shaft 15 for internal rotation of the drive section 7 through screws.

A rotary tube shaft 16 is provided on the outside of this drive shaft 15.
A U-pulley 7 is fixed below this rotary tube shaft 16, and a multi-blade propeller blade 1 that generates a jet flow is mounted above the U-pulley 7.
8 is installation. The U-pulley 17 and the multi-blade propeller blade 18 are separated into two by a waterproof bushing 19 on a barrier formed in two stages above and below the drive unit 7. This waterproof bunsh 19 rotatably supports the rotary tube shaft 16 and is configured to keep the upper and lower stages completely sealed. The rotation of the motor 5 is transmitted from the small U-pulley to the U-pulley 17 via a round rubber heald indicated by a dotted line.

Further, the above-mentioned supply/drainage and circulating water hose insertion port 2 is provided on the upper side of the drive unit 7.

The motor 5 rotates the multi-blade propeller blades 118, and this drive generates a fast jet stream in one direction, that is, an extremely strong swirling water flow, and the multi-blade propeller blades 18
The jet pump unit 3 generates the same water flow in the opposite direction by reversing the rotation of the jet pump unit 3.

The operation of automatically reversing and repeating the direction of the jet stream at regular time intervals is performed by operating a phase change switch under timer control and reversing the rotation of the motor 5.
High-speed rotation in only one direction for centrifugal dehydration of the inner layer 4 is performed by transmitting the rotation and stop of the motor 6 under timer control to the inner shoulder rotation drive shaft 15.

The timer 20 and a control box 21 that controls the switches of various parts that move in conjunction with the timer 20 are formed separately, and inside the control box 21, in addition to the timer 20, there is a solenoid valve 22 for water supply, and a solenoid valve 22 for water drainage! A magnetic valve 24 is built-in,
Opening/closing the 1m valve 22 for water supply, starting, reversing, and stopping the jet pump for cleaning operation (automatic reversal/repetitive motion of upper and lower jets) and opening/closing the electromagnetic valve 24 for drainage, high-speed rotation of the internal 4 for centrifugal dehydration of laundry. A series of electrical operations such as starting and stopping are performed by operating a timer cam 23 according to a time distribution set in advance in a timer 20.

The outer cylinder 1, which is a component of the washing tub, is installed in the liquid flow circuit sealed with the above-described configuration, and the inside of the outer cylinder 1 is
The washing action of the jet washes the laundry inside the all-mesh inner rack 4 while twisting and returning it by the spiral jet flowing in a downward direction, and in the process, the upper and lower mesh surfaces of the inner layer 4 are alternately This method is combined with a massaging action that strongly presses the laundry, and by this method, excellent washing effects can be obtained uniformly and in a short time without damaging the laundry.

The present invention thus provides a sealed vertical cylindrical outer cylinder 1.
Because it is a method that combines two effective washing actions, it is possible to wash even in a small cylinder, and it has the feature of making it possible to miniaturize a fully automatic electric washing machine to the point where it can be carried. .

This results in (1) Achieved miniaturization of fully automatic electric washing machines.

As already mentioned, conventional household electric washing machines have a lid, but the washing liquid is stored in an open container (washing tub), and a pump generates a planar water flow within the container. Since this is a washing method, it is necessary to provide a sufficient amount of flat space in the washing tub to generate water flow, and this is one of the obstacles to downsizing electric washing machines. Ta.

In contrast, in the present invention, by adopting a structure in which the outer cylinder 1 and the liquid flow circulation hoses connected to the upper and lower parts of the outer cylinder I are completely filled with washing liquid and sealed, a fully automatic electric washing machine can be used. The machine was able to be made small enough to be portable.

(2) Less damage to the laundry and strong cleaning power.In other words, among the conventional washing methods, the automatic reversing whirlpool water jet washing method has stronger cleaning power and relatively less damage to the laundry. Washing machines have become mainstream for home use, but even with this method, the rubber knitted parts of socks, pants, briefs, etc. are often damaged due to stretching.

This is because standard home electric washing machines are set to be able to wash even thick fabrics and large-sized laundry, so the laundry is twisted in a strong stream of water and subjected to strong force for a relatively long time. (15 to 30 seconds) Damage caused by being continuously pulled in one direction, such as socks, pants, briefs, etc. that get very dirty and need to be washed every day.
This can be said to be a harsh washing method for small items such as pantyhose that have weak rubber knit parts.

In contrast, in the present invention, the twisting cleaning by the jet stream is only performed for a short distance between the upper and lower surfaces of the inner shoulder for a very short time (2 to 3 seconds), and then it is immediately reversed.
In combination with another effective cleaning action, the strong pressing action (a kind of rubbing action) of jets on the mesh-like upper and lower surfaces of the inner shoulder, the rubber knitting part of the laundry will not be damaged (and , a uniform and excellent washing effect can be obtained.

(3) It has an economic saving effect.

As mentioned above, in addition to the economic effect of softening the damage of small laundry items that are easily damaged and making them last longer, the small machine uses less water, detergent, and electricity, and can be used on a daily basis. When used in

Next, the operation of the jet automatic reversing type washing machine having the above-described configuration and features will be described in more detail.

(b) Open the top lid 9 to which the circulation hose is connected, add an appropriate amount of laundry and detergent, then seal the top lid 9 and turn the switch on the control box 21 to "ON" to energize the water supply electromagnetic valve 22, and the diaphragm The plunger (rod piston) that was holding it back is pulled up, and water starts to be supplied from the tap 25 into the circulating water circuit.

When water fills the outer cylinder 1 while discharging the air inside the outer cylinder 1 through the air valve 10 at the top of the upper neck 9, water pressure causes! At the same time as the diaphragm of the magnetic valve 22 is closed, the power to the magnetic valve 22 is cut off, the plunger is lowered, and the water supply is completely stopped.

(b) When the water supply solenoid valve 22 is closed and switched off in this way, the motor 5 of the jet pump unit 3 is switched on under timer control, the multi-blade propeller impeller 18 rotates, and the inside of the outer cylinder 1 is turned on. The water first flows from the bottom to the top in a swirling jet, stirring and dissolving the detergent, and pushing the laundry in the inner shoulder 4 up from the bottom while twisting along the swirling jet, creating a mesh-like shape in the inner shoulder. Washing begins with strong liquid flow and pressing action. These two washing actions are reversed and repeated at short time intervals (approximately 2 to 3 second intervals) under timer control, so that the rotational speed of the multi-blade propeller blades 11B of the pump stops and reverses before it becomes too high. In addition, the laundry inside the inner shoulder 4 is alternately and strongly pressed against the mesh-like upper and lower surfaces of the inner shoulder 4 while repeating twisting and returning from the bottom to the top and from the top to the bottom. As a result, a type of massaging is performed, and uniform washing is effectively carried out in a short time (about 3 minutes for men's socks, briefs, etc.) without damaging the fabric.

(c) Immediately before the end of the washing operation, the daily rotation direction of the multi-blade propeller blades of the jet pump unit 3 is set by timer control so that the water in the outer cylinder 1 always flows from top to bottom, and the washing operation is performed. When the drainage electromagnetic valve 24 is energized and opened just before the end of the process, the washing waste liquid is forcibly discharged at first, and outside air is introduced into the nearly sealed outer cylinder l through the air valve 10 at the top of the top cover 9. (At the top of the upper cover 9 of the outer cylinder 1, which is the only inlet for introducing air into the sealed circulating water circuit even if the drain electromagnetic valve 24 is opened. It is difficult for outside air to be introduced from the air valve 10 in its natural state).

After the washing waste liquid has been discharged from all circulating water circuits, the motor 6 dedicated to the inside [4] is energized by timer control.
The inner shoulder 4 transmits two rotations of the inner cage rotation drive shaft 151 to the outer frame a.
It also rotates at high speed to centrifugally dewater the laundry waste liquid remaining on the laundry.

(d) After centrifugal dehydration for a certain period of time (approximately 30 seconds at 800 revolutions per minute), when the rotation of the inner shoulder 4 is stopped by timer control, the electromagnetic valve 24 for draining is closed, and at the same time, the electromagnetic valve 22 for water supply is energized. When this valve 22 opens and purified water for washing is supplied, and the circulating water circuit such as the inside of the outer cylinder 1 and the inside of the hose is filled, the electromagnetic valve 22 closes and water supply stops, and at the same time, the drive motor 5 of the jet pump unit 3 is energized. Then, washing with water is performed in the order of washing action and collar opening described in (b) above (required time: about 30 seconds).

Immediately before the end of the water washing operation, the multi-blade propeller blade f1118 always rotates in the direction of flowing the water in the outer cylinder 1 from top to bottom, and the tm pulp 24 for drainage is still transferred to the multi-blade propeller blade 1 of the water pump.
8 rotates and opens while the water in the outer cylinder 1 constituting the washing tub flows from top to bottom, forcing water to drain for only about 2 seconds, allowing natural drainage after the multi-blade propeller blade 18 stops. The operation to facilitate washing is the same as the operation described in (b) above, and at the same time as draining is completed, the motor 6 dedicated to rotating the inner basket 4 times is energized to rotate the inner shoulder 4 at high speed to remove the washing residual liquid contained in the laundry. The process of centrifugal dehydration is also the same as that described in (c) above.

This series of washing operations, from supplying purified water to washing, draining, and centrifugal dewatering, is repeated three times in a row to complete the washing process, and when the buzzer that signals the end of washing stops sounding under timer control, all power is turned off. Cut off (rOFFj)
After that, all you have to do is open the top lid of the washing tub and take out the laundry inside. Since these configurations are well known, their explanation will be omitted.

(e) Even if the above-mentioned end buzzer sounds, do not take out the laundry, remove only the circulating water hose from the top lid 9, and turn the other "drying J" switch of the timer control device 21 to "ON" to rotate the inner basket. When the dedicated motor 6 is energized, the inner shoulder 4 rotates at high speed in one direction as in the case of centrifugal dehydration, and the airflow generated by the rotation of the protrusion of the outer frame a of the inner shoulder 4 flows into a spiral shape on the inner wall of the outer cylinder 1. The protruding line 8 guides the spiral upward airflow, creating a whirlwind that blows upwards from the bottom inside the outer cylinder 1, giving buoyancy to the dehydrated laundry inside the inner shoulder 4 while exposing it to a strong airflow and cooling it. Drying takes place.

This cold air drying method is particularly effective for light and thin laundry items such as socks, panties, briefs, and handkerchiefs, and completely dries them in a few minutes.

Note that the humid air inside the washing tub is discharged from the circulating water hose attachment port 12 on the top lid 9, but the outside air intake port is
To become the drain port 2, turn the ``drying'' switch to 'ON J' and at the same time turn on the drain tm valve 2 by controlling the timer.
4 to open, and after a certain period of time (about 5 minutes), the internal 4 will open.
When the rotation stops, the power is turned off, and the drain electromagnetic valve 24 is also closed, completing the drying operation.

This cold air drying function is an auxiliary function applied from the structure of the present invention.

(Effects of the Invention) As explained above, the jet flow automatic reversal type washing method of the present invention has the following features: (1) An inner mesh basket for storing laundry is provided in an outer cylinder, and air in the outer cylinder is discharged. The inside of the laundry is filled with washing liquid, generating a swirling jet that repeatedly reverses in the vertical direction, and moves the laundry up and down according to the flow, twisting and returning the laundry to wash the liquid, and at the same time wash the inside of the inside. This method is characterized by adding a massaging action by pressing the laundry onto the upper and lower mesh surfaces with a jet stream, so that laundry can be washed effectively in a short period of time without damaging the laundry.

(2) The washing machine of the present invention also includes a vertical cylindrical washing tub outer cylinder having a spiral protrusion line on the inner wall of the cylinder that induces and promotes the generation of a swirling water flow, and a center of the inside of the outer cylinder. The rotatable cylindrical metal interior and the upper part of the outer cylinder can be sealed to maintain waterproofness, and the inside has a circulating water inlet/outlet and air valve that holds the inner lid made of wire mesh for the inner basket with a support rod. A jet pump unit comprising an upper lid, a multi-blade propeller blade that is attached to the lower part of the outer cylinder in a waterproof manner and is rotatable in forward and reverse directions to generate a swirling jet in the washing liquid filling the inside of the outer cylinder, and a circulating water inlet/outlet. A washing tub consisting of a drive unit having a drive unit and a control box that automatically controls the operation of water injection, circulation, and discharge into the washing tub and the operation of a jet pump unit are connected by a hose and an electric cord, Constructs a closed circulation circuit for washing water,
After the outer cylinder is sealed, the outer cylinder is closed with washing liquid while discharging the air from the air valve at the top of the outer cylinder to fill the liquid flow circuit, and the multi-blade propeller type jet pump unit is installed at the bottom of the outer cylinder.

By controlling the forward and reverse rotation of the multi-blade propeller blades, a fast swirling jet is generated in the outer cylinder that reverses and repeatedly flows in the vertical direction, and the laundry inside the inner crocodile is twisted and returned by this fast swirling jet. In addition to applying water to the washing machine, the upper and lower surfaces of the mesh-like interior are strongly pressed by jets, so squeezing washing and massaging washing can be performed at the same time, providing excellent cleaning performance and preventing damage to the laundry. can,
Another advantage is that by removing three hose connections, including the water faucet, it can be divided into two parts, the washing tub and the control device, and can be made small and easily portable.

[Brief explanation of the drawing]

1 and 2 show embodiments of the present invention; FIG. 1 is a cross-sectional view of a jet automatic reversing type washing machine, and FIG. 2 is a perspective view of the main parts thereof.

Claims (2)

[Claims] (1) An inner mesh basket for storing laundry is provided in an outer cylinder, and the outer cylinder is filled with washing liquid while expelling air, and a swirling jet that repeatedly flows in the vertical direction of the inner basket is created. The laundry was generated and moved up and down according to the flow, giving it twist and return for liquid flow washing, and at the same time, a massaging action was added by pressing the laundry against the mesh-like upper and lower surfaces of the inner basket with a jet stream. A jet automatic reversal washing method characterized by: (2) A vertical cylindrical washing tub outer cylinder with a spiral protrusion line on the inner wall of the cylinder that induces and promotes the generation of swirling water flow, and a rotatable cylindrical outer cylinder installed in the center of this outer cylinder. The inner basket made of wire mesh and the upper part of the outer cylinder can be sealed while maintaining waterproofness, and the upper lid with a circulating water inlet/outlet and air valve that holds the inner lid made of wire mesh for the inner basket with a support rod on the inside, and the lower part of the outer cylinder is waterproof. A washing tub comprising a jet pump unit equipped with a multi-blade propeller blade that can freely rotate in forward and reverse directions to generate a swirling jet in the washing liquid filled inside the outer cylinder, and a drive unit having a circulating water inlet and outlet. A control box that automatically controls the injection, circulation, and discharge of water into the washing tub and the operation of the jet pump unit is connected with a hose and an electric cord to form a closed circulation circuit for washing water. A washing machine characterized by: