JP2007082784A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the motion of washing water in a circulating water passage which circulates the washing water to a rotary drum in a water receiving tub without using a circulating pump or the like to be visually checked from the outside of a main body. <P>SOLUTION: The washing water which turns in the water receiving tub 6 accompanying the rotation of the rotary drum 5 is jetted to the rotary drum from the front side of the water receiving tub by the circulating water passage 22, and the washing water is fed to clothes in the rotary drum to increase the washing effects. The motion to increase the washing effects is made to be visually checked through a lid body 8 made of a see-through material which is used as an illumination device 60 for preventing clothes from being overlooked in the rotary drum after the completion of the washing motion as well. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drum type washing machine that performs washing, rinsing, dewatering, and the like in a rotating drum having a rotation center axis in a horizontal direction or a substantially inclined direction.

  A conventional drum type washing machine of this type will be described below with reference to FIG.

  A water receiving tank 102 in which a rotating drum 103 having a large number of water draining small holes 108 formed on the outer periphery thereof is rotatably disposed therein, and a motor 104 for driving the rotating drum 103 is fixed to an outer bottom portion. In addition, it is supported by the spring body 109 so as to be swingable and anti-vibrated from the outer box 101 which is the main body of the washing machine. The water receiving tank 102 is connected to a water supply hose 112 for supplying washing water from a water supply valve 106 at an upper portion, and a drain port 114 connected to a drain valve 113 is formed at a lower bottom portion. The rotary drum 103 has a garment agitation projection 107 formed therein, and an opening 103a through which the garment is taken in and out corresponds to a lid 105 that can be freely opened and closed in the outer box 101 (for example, Patent Documents). 1).

  A second opening 102 a is formed at the position of the water receiving tank 102 corresponding to the opening 103 a of the rotating drum 103 and the lid 105, and between the second opening 102 a and the opening on the front surface of the outer box 101. A packing member 115 made of a flexible material such as a substantially cylindrical rubber is disposed. The packing member 115 is fixed in a watertight manner to the second opening 102a of the water receiving tank 102, and comes into watertight contact with the outer box 101 when the lid 105 is closed.

  The control device 116 is arranged on the upper front surface of the outer box 101, and controls the operation of the motor 104, the water supply valve 106, the drain valve 113, etc., and the control means and input means for sequentially controlling a series of processes such as washing, rinsing and dehydration, It consists of display means.

  The operation of the above configuration will be described. The lid 105 is opened, the laundry clothes are put into the rotating drum 103, the power switch (not shown) is turned on, and then a start switch (not shown) provided in the control device 116. When the operation is started, the water supply valve 106 operates to supply water, and when a predetermined water level is detected by a water level detection means (not shown), the water supply is stopped and the motor 104 is driven. In the washing process, the rotary drum 103 rotates at a relatively low speed, and the clothes inside are lifted by the protrusions 107 and the like, dropped from an appropriate height, and washed by the impact force. Although the rotation of the rotary drum 103 depends on the shape of the protrusion 107, it is generally rotated left and right to reduce tangling of clothing.

  When the washing process is completed, the washing water in the water receiving tub 102 is drained through the drain valve 113 and the process proceeds to the rinsing process. In the rinsing process, the rotation drum performs almost the same operation as the washing process. Water injection rinsing and the like for operating the water supply valve 106 and the like are performed. In the dehydration process, the rotating drum 103 is rotated at a high speed after draining, and the moisture of the laundry is centrifugally dehydrated.

  The drum-type washing machine having such a configuration has the advantage that the amount of washing water can be reduced. On the other hand, since the washing process is started in a state where the laundry does not contain enough washing water, it takes time for washing. Also, there was a problem of insufficient cleaning power due to the small mechanical force of tapping.

In order to solve these problems, the washing water collected in the outer tub 102 as a conventional technique is sucked up by a circulation pump, and returned to the rotating drum to sufficiently supply the washing water to the laundry. There is a technique for increasing the cleaning power (see, for example, Patent Document 2).
JP-A-9-215894 JP-A-9-215893

  However, in the conventional configuration, the circulated washing water has to be sprayed widely and accurately on the laundry, and a large circulation pump is required to apply sufficient washing water to the laundry. It was not possible to respond clearly to questions that could not be confirmed and to the question about the noise of the circulating pump.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and constitutes a circulating water path for allowing washing water in a water receiving tub to recirculate from a plurality of outlets into a rotating drum without using a circulation pump. Is sufficiently supplied with water, and the detergency is increased by the impact force of the jet. Then, it is possible to visually check that the circulated washing water is sprayed on the clothes, and it is possible to confirm what kind of washing operation is performed, thereby providing the user with satisfaction and security.

  In order to solve the above-mentioned conventional problems, a circulation path for washing water by rotation of a rotating drum is configured, and one or more discharge ports for discharging washing water are provided in the rotating drum, and the control means is a motor. Rotating the rotating drum by driving the rotating drum, the washing water is discharged into the rotating drum from the discharge port, the lighting device is turned on or blinked, and the washing operation is performed from the outside of the lid Visible.

  The drum type washing machine of the present invention confirms the operation state of increasing the washing power by circulating the washing water in the water receiving tub into the rotating drum and spraying it onto the laundry without using a circulation pump or the like from the outside of the lid body. It gives users a sense of security and satisfaction.

  1st invention has the main body of the washing machine which has the opening part which attached the lid | cover made from fluoroscopic materials, such as glass, so that opening and closing was possible, and the 1st opening part which was included in the said main body and for clothes in / out A bottomed cylindrical water receiving tank, a second opening that is rotatably included in the water receiving tank and that opens in correspondence with the first opening, and a rotating shaft that is inclined in the horizontal direction or the horizontal direction. A bottom cylindrical rotary drum, a motor for rotating the rotary drum, water supply means for controlling the supply of washing water into the water receiving tub, and the interior of the rotary drum via the second opening A lighting device that illuminates; and a control unit that controls the motor, the water supply unit, the lighting device, and the like to control a series of washing, rinsing, and dehydrating operations, and the water receiving tank is rotated along with the rotation of the rotating drum. Water intake into which washing water rotating in the water receiving tank enters And a circulating water channel whose one end communicates with the water intake port, communicates with the other end of the circulating water channel and is located on the inner surface side near the outer periphery of the first opening, and enters the rotating drum via the second opening. One or a plurality of outlets for discharging the washing water are provided, and the control means drives the motor to rotate the rotating drum at a first predetermined rotation speed so that the washing water is supplied from the outlets. In addition to being discharged into the rotating drum, the lighting device is turned on or blinked.

  As a result, the washing water is jetted onto the laundry, so that the washing water is sufficiently supplied to the laundry, and the washing effect is enhanced by the impact force of the jet. Furthermore, since the circulating water channel utilizing the rotation of the rotating drum is configured, a separate circulating pump as in the conventional example is unnecessary. And by arranging the lighting device, the state where the circulated washing water collides widely with the laundry can be seen from the outside of the lid, so that a new washing method by jetting can be confirmed, Give users a sense of security and satisfaction. In addition, since the actual driving state can be confirmed well at the store, the demonstration effect is also enhanced.

  According to a second aspect of the invention, in particular, in the first aspect of the invention, the control means controls the illumination device disposed so as to be close to the discharge port so as to illuminate the state of the wash water being discharged. The visual effect of washing water discharge is further enhanced.

  In the third invention, in particular, the circulating water channel of the first or second invention is divided into two on the discharge port side, and two discharge ports are arranged, and the lighting device is placed between the two discharge ports. By arranging, washing water can be sprayed uniformly on the laundry, and the state of spraying can be easily confirmed.

  According to a fourth aspect of the invention, in particular, in any one of the first to third aspects of the invention, the control means drives the motor in at least one of the washing stroke and the rinsing stroke to move the rotating drum to the first one. A circulation discharge step of discharging washing water into the rotary drum from the discharge port by rotating at a predetermined rotation speed; and driving the motor to rotate the rotary drum at a second predetermined rotation speed to rotate the rotation drum. A washing process that lifts and drops the laundry of, and at least in the circulation and discharge process, the lighting device is turned on or blinking, and the lighting operation is not performed in the conventional washing operation, so that the circulation spray washing and the conventional It is possible to clearly distinguish between washing and washing.

  According to a fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, the control unit is configured to perform a predetermined time when the lid is opened after a series of steps such as washing, rinsing, and dehydration are completed, or the lid. By turning on the lighting device until the body is closed, it becomes possible to share the lighting device with a lighting device that has a function for preventing forgetting to take out laundry, thereby reducing production costs and producing Also improves.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a cross-sectional view of a drum-type washing machine according to the first embodiment of the present invention. In FIG. 1, in the main body 1 of the drum type washing machine, a bottomed cylindrical water receiving tub 6 is inclined downward from the front side to the back side of the main body 1 by a suspension structure (not shown). It is supported. The water receiving tank 6 is composed of a water receiving tank main body 2 and a water receiving tank cover 3, and is connected and fixed in a watertight manner through the first packing member 4 at the connecting portion. The water receiving tub 6 rotatably supports a rotating drum 5 formed in a cylindrical shape with a bottom on the inner side so that its rotating shaft is inclined downward from the front side of the main body 1 toward the back side. .

  A main body opening 1a for taking in and out the laundry is formed on the front side of the main body 1, and the main body opening 1a is openable and closable, and is made of a transparent material such as glass. A body 8 is provided.

  The water receiving tank cover 3 is provided with an outer tank cover opening (first opening) 3a at a position corresponding to the main body opening 1a. The rotating drum 5 has a main body opening 1a and an outer tank cover opening. A rotating drum opening (second opening) 5a is provided at a position corresponding to 3a. The laundry is put into and out of the rotary drum 5 from the outside of the main body 1 through the main body opening 1a, the outer tub cover opening 3a, and the rotating drum opening 5a.

  The rotating drum 5 includes a rotating drum front surface portion 5b provided with a rotating drum opening 5a, a rotating drum body portion 5c constituting a bottomed cylindrical body portion, and a rotating drum bottom portion 5d constituting a bottom portion. A plurality of stirring protrusions 5e are provided on the inner surface of the drum body 5c, and are rotated by a drive motor 7 attached to the outside of the water receiving tank main body bottom 2c of the water receiving tank main body 2. The horizontal rotation direction is variable.

  One end of a water supply hose 10 a is connected to the water supply valve (water supply means) 9, and the other end of the water supply hose 10 a is connected to the water injection cap part 10 b so that water can be supplied into the rotary drum 5. The washing water supplied to the water receiving tank 6 is discharged to the outside of the main body 1 by opening the drain valve 43 through the drain pipe 42.

  The lighting device 60 is provided in the vicinity of the outer tank cover opening 3 a of the water receiving tank cover 3. In addition, the attachment structure of the illuminating device 60 is mentioned later.

  The control means 16 is disposed on the upper front surface of the main body 1 and controls the operation of the drive motor 7, drain valve 43, water supply valve 9, lighting device 60, etc., and sequentially controls a series of processes such as washing, rinsing and dehydration. .

  FIG. 2 is a perspective view of the water receiving tub main body 2 of the drum type washing machine in the first embodiment of the present invention. FIG. 3 is a perspective view of the water receiving tank cover 3.

  The water receiving tank main body 2 is a bottomed cylindrical type having a water receiving tank main body opening 2a, a water receiving tank main body trunk 2b, and a water receiving tank main body bottom 2c.

  In the vicinity of the boundary between the water receiving tank main body bottom 2c and the water receiving tank main body 2b, and on the inner surface of the water receiving tank main body bottom 2c, the water receiving tank main body bottom groove 2d is formed into a water receiving tank. It is formed in a circular arc shape substantially concentric with the main body barrel 2b. A water receiving tank main body groove lid 23 having a shape corresponding to the water receiving tank main body bottom groove 2d is formed on the water receiving tank main body bottom groove 2d via the second packing member 24 provided in the vicinity of the outer periphery thereof. The outer peripheral part is fixed by screwing with a screw 25, and a first circulating water channel 22 is formed by the water receiving tank main body bottom groove 2d and the water receiving tank main body groove lid 23.

  The water intake 20 which is one end of the first circulation water channel 22 communicates with the guide recess 21 whose bottom surface gradually changes from the bottom surface of the water receiving tank main body bottom groove 2d to the inner surface of the water receiving tank main body bottom 2c. Further, the water receiving tank main body 2 is integrally provided with a pipe-shaped second circulation water channel 26 that communicates from the water receiving tank main body opening 2a to the water receiving tank main body bottom 2c outside the water receiving tank main body 2b. The end of the second circulating water channel 26 on the water receiving tank main body bottom 2c side is in communication with the other end of the first circulating water channel 22 described above.

  The structure of the water receiving tank cover 3 will be described with reference to FIG.

  The water receiving tank cover 3 has a substantially cylindrical shape having a water receiving tank cover front surface part 3b provided with a water receiving tank cover opening 3a, a water receiving tank cover body 3c, and a water receiving tank cover rear opening 3d. Is formed.

  The water receiving tank cover 3 communicates from the water receiving tank cover rear opening 3d to the water receiving tank cover front face 3b at a position corresponding to the second circulation water channel 26 outside the water receiving tank cover body 3c. A third circulation water channel 27 is formed integrally.

  On the inner surface of the water receiving tank cover front face portion 3b, a water receiving tank cover front face groove portion 3e formed in a substantially concave shape is approached from the outer peripheral side of the water receiving tank cover front face portion 3b toward the water receiving tank cover opening 3a. It is provided in a substantially Y shape that is divided into two forks. An outer tub cover groove cover 29 having a shape corresponding to the shape of the outer tub cover front groove 3e is formed on the outer tub cover front groove 3e via the third packing member 30 provided in the vicinity of the outer periphery thereof. The outer periphery is fixed with screws 31. A substantially Y-shaped fourth circulation water channel 28 is formed by the outer tank cover front groove 3e and the water receiving tank cover groove lid 29.

  One end, which is a substantially Y-shaped lower end of the fourth circulating water channel 28, communicates with an end of the third circulating water channel 27 on the water receiving tank cover front surface portion 3 b side. The water receiving tank cover groove cover 29 is provided with two discharge ports 34 for discharging washing water in the vicinity of the bifurcated tip portion. The discharge port 34 is in the vicinity of the outer periphery of the water receiving tank cover opening 3a and on the inner surface side of the water receiving tank cover front face 3b, and faces the rotary drum opening 5a as shown in FIG. It is arranged like this.

  Further, in a state where the water receiving tank body 2 and the water receiving tank cover 3 are connected and fixed and supported by the main body 1 as the water receiving tank 6, the discharge port 34 is located below the water receiving tank cover front surface portion 3b, It is provided so as to be lower than the mouth 20.

  Further, when the water receiving tank body 2 and the water receiving tank cover 3 are connected and fixed, the second circulating water channel 26 and the third circulating water channel 27 are connected to the water receiving tank body 2 and the water receiving tank cover 3 described above. It is connected and fixed in a watertight manner through the first packing member 4 in the same manner as the connection and fixing method.

  The illuminating device 60 is attached to the upper center portion of the substantially Y-shaped water receiving tank cover groove cover 29 of the water receiving tank cover 3 with a screw 31 and is composed of a light emitting diode, a small incandescent lamp, etc. It is possible.

  FIG. 4 is a cross-sectional view of a main part of the illumination device of the drum type washing machine in the first embodiment of the present invention.

  In FIG. 4, a light emitting diode 8c is mounted in a cylindrical container-like lamp case 8a made of a transparent material and waterproof while being insulated with two press plates 8u and 8v via a rubber packing 8g. The lamp case 8a is fixed to the water receiving tank cover front surface portion 3b with screws 31. In FIG. 4, the lamp case 8 a side is the inner side of the rotating drum 5.

  FIG. 5 is a plan view (as viewed from the right side A in FIG. 1) of the rotating drum bottom 5d of the rotating drum 5 of the drum type washing machine according to the first embodiment of the present invention, and FIG. 3 is a longitudinal sectional view of a main part of the drum 5. The bottom 5d of the rotating drum is formed in a substantially concave shape by providing a flange portion 5f that protrudes outward on the outer periphery thereof, and by caulking or welding at the rear end portion of the rotating drum body 5c and the flange portion 5f portion. It is stuck.

  Inside the flange portion 5f on the outer surface side of the rotating drum bottom portion 5d, there are provided a drum fixing member 35 made of aluminum die cast having three extending portions 35a substantially radially, and three extending portions 35a. A substantially arc-shaped rib attachment member 37 formed along the outer periphery of the rotating drum bottom 5d is provided therebetween.

  The rib attachment member 37 is formed in a substantially concave shape by providing an outer wall 40 and an inner wall 41 that protrude rearward on the outer periphery, and a plurality of ribs 38 that connect the outer wall 40 and the inner wall 41 are formed therein. It is almost the same height as 41 and is radially formed on the outer peripheral side. The drum fixing member 35 is connected to a shaft 7 a extending from the motor 7 at a central portion thereof, and transmits the rotation of the motor 7 to the rotating drum 5.

  About the drum type washing machine comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The control means 16 rotates the rotating drum 5 at a first predetermined rotational speed by driving the motor 7 during the washing process, and this first predetermined rotational speed is caused by the centrifugal force accompanying the rotation of the rotating drum 5. Is set to a rotational speed (for example, 80 r / min) that is sticking to the inner peripheral surface of the rotary drum 5. As the rotating drum 5 rotates, the washing liquid containing the detergent is swirled by the rib 38 provided on the outer bottom 5d of the rotating drum 5, and rotates around the boundary between the water receiving tank body 2b and the water receiving tank main body bottom 2c. Then, it is guided to the guide recess 21 and taken into the water intake port 20, passes through the first to fourth circulation water channels 22, 26, 27, and 28, and is discharged into the rotary drum 5 from the discharge port 34.

  Since the laundry in the rotating drum 5 is attached to the inner peripheral surface, the washing water containing the detergent is poured into the laundry every time the rotating drum 5 rotates, and the washing water is washed by collision of the washing water or centrifugal force. A washing operation is performed in a so-called circulation discharge process in which dirt is removed by permeation through the object. In the case of the first predetermined rotation speed at which the washing water circulates, the control device can visually recognize the operation of the washing water in the rotating drum by controlling the lighting device 60 to turn on or blink the light emitting diode 8c and the like. .

  As described with reference to FIG. 3, the discharge port 34 is formed at two locations and the illumination device 60 is disposed in the middle of the discharge port 34, which increases the amount of circulating water and increases the cleaning power. The lighting device 60 is arranged close to the discharge port 34 so that the discharge state from the two discharge ports 34 can be more easily recognized by one lighting device 60.

  Further, when the control means 16 controls the driving of the motor 7 to the second predetermined rotational speed in which the rotational speed of the rotary drum 5 is smaller than the first predetermined rotational speed described above (for example, 45 r / min), the laundry is Although it is lifted by the frictional resistance of the protrusion 5e and the wall surface, it is dropped by its own weight, and the washing operation of tapping washing that changes its position one after another is performed. At the second predetermined number of rotations, the washing liquid stirring force due to the rotation of the rotating drum 5 is weak, there is no uptake from the water intake 20, and the above-described circulation discharge process does not operate. The control device prevents the lighting device 60 from operating. As a result, it is possible to visually distinguish between the circulation discharge process and the conventional washing process.

  Furthermore, in the above-described configuration, the lighting device is completed for a predetermined time (for example, 10 minutes) or until the lid body 8 is closed when a series of processes such as washing, rinsing, and dehydration are completed and the user opens the lid body 8. Control 60 to light up. With this configuration, the illuminating device 60 can also function as a prevention of forgetting to take out laundry clothes in the rotating drum 5, which is extremely useful in terms of productivity and cost.

  As described above, the drum type washing machine according to the present invention can confirm the operation state in which the washing power in the water receiving tub is circulated in the rotating drum and sprayed onto the laundry to increase the cleaning power from outside the lid, The performance demonstration effect of this equipment is great, giving users a sense of security and satisfaction.

Sectional drawing of the drum type washing machine in Embodiment 1 of this invention Perspective view of the water receiving tank body of the drum type washing machine Perspective view of water receiving tank cover of the drum type washing machine Cross-sectional view of the main part of the lighting device of the drum type washing machine A plan view of the bottom of the rotating drum as viewed from the right side A of FIG. Sectional drawing of the principal part of the rotating drum of the drum type washing machine Sectional view of a conventional drum-type washing machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 5 Rotating drum 6 Water receiving tank 7 Motor 8 Lid 9 Water supply means 16 Control means 20 Water intake 22 Circulating water channel 34 Discharge port 60 Illumination device

Claims (5)

A main body of a washing machine having an opening portion in which a lid made of a transparent material such as glass is freely opened and closed, and a bottomed cylindrical water having a first opening portion for entering and exiting clothes contained in the main body A cylindrical rotating drum with a bottom having a receiving tank, a second opening that is rotatably included in the water receiving tank and opens in correspondence with the first opening, and a rotating shaft that is inclined in the horizontal direction or the horizontal direction. A motor that rotationally drives the rotary drum, a water supply unit that controls the supply of washing water into the water receiving tub, an illumination device that illuminates the interior of the rotary drum through the second opening, and And a control means for controlling a series of washing, rinsing, and dehydrating operations by controlling a motor, a water supply means, a lighting device, and the like, and the water receiving tank is disposed in the water receiving tank as the rotating drum rotates. A water intake for rotating washing water, and the water intake A circulating water channel having one end communicating with the other, and the other end of the circulating water channel positioned on the inner surface near the outer periphery of the first opening, and discharging wash water into the rotating drum through the second opening. One or a plurality of discharge ports are provided, and the control means drives the motor to rotate the rotating drum at a first predetermined rotation speed, whereby washing water is discharged from the discharge port into the rotating drum. In addition, a drum type washing machine in which the lighting device is turned on or blinked. The drum-type washing machine according to claim 1, wherein the control means controls the illumination water disposed near the discharge port to illuminate the state of the discharged wash water. The drum type washing machine according to claim 1 or 2, wherein the circulation channel is divided into two on the discharge port side, two discharge ports are disposed, and an illumination device is disposed in the middle of the two discharge ports. The control means discharges washing water from the discharge port into the rotating drum by driving the motor and rotating the rotating drum at the first predetermined rotational speed in at least one of the washing process and the rinsing process. A circulation discharge step, and a washing step of driving the motor and rotating the rotary drum at a second predetermined rotation number to lift and drop the laundry in the rotary drum, and at least the circulation discharge The drum type washing machine according to any one of claims 1 to 3, wherein the lighting device is turned on or blinking in the process. 2. The control device according to claim 1, wherein when the lid is opened after a series of steps such as washing, rinsing, and dehydration is completed, the lighting device is turned on for a predetermined time or until the lid is closed. The drum type washing machine of any one of -4.