JP2009006005A - Drum type washing/drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make it easy to take out a laundry by preventing the laundry after spin-drying from sticking on the inner peripheral face of a rotary drum. <P>SOLUTION: The drum 4 is provided with an opening 2a through which the laundry A is threw in, a plurality of buffles 6 protruding in the direction of the rotation axis in the cylindrical inner wall, and a movable body 24 provided in the buffle. The movable body is provided so as to protrude from the buffer in the direction of the rotation axis of the drum, and is connected to the buffer by a stretchable/contractive elastic body 28. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a drum-type washing / drying machine capable of continuously washing and drying clothes in the same tank.

  Conventionally, this type of drum type washing and drying machine is provided with a baffle fixed to an inner peripheral surface of a drum disposed in a main body (see, for example, Patent Document 1).

  FIG. 5 shows a cross-sectional view of a conventional drum-type washing and drying machine described in the publication. As shown in FIG. 5, the water tank 31 disposed in the outer box 30 is supported by a plurality of suspensions (not shown), and includes a drum 32 having a rotation axis coaxial with the water tank 31. Yes. A plurality of baffles 33 are provided on the inner peripheral surface of the drum 32 at positions that are rotationally symmetric with respect to the rotation axis. The rotating shaft of the drum 32 is inclined upwards with respect to the horizontal direction so that the front side of the drum 32 faces upward. The drive device 34 attached to the bottom surface of the water tank 31 rotates the drum 32 at a predetermined rotation direction and rotation speed by a control device (not shown). The outer box 30, the water tank 31, and the drum 32 all have openings 35, 36, and 37 so that the laundry can be taken in and out of the drum 32. A lid 38 is provided for opening and closing the lid.

  The laundry put into the drum 32 is washed by the rotation of the drum 32 (for example, 40 to 60 rpm) after water is supplied into the drum 32 by a water supply means (not shown), and then the drum 32 is rotated at a high speed (for example, the rotation of the drum 32). 700 to 1000 rpm), and dehydration is performed by a drying device using a heater or a heat pump (not shown).

Note that the inner diameter of the drum of this type of drum type washing and drying machine is longer than the inner diameter of the drum of a so-called vertical type washing and drying machine in which the rotation axis of the drum is arranged vertically to the horizontal. It has a structure with a large diameter so that it is about the same as the depth of the main body of the dryer.
JP 2006-75479 A

  However, in the conventional configuration, since the inner diameter of the drum is larger than the inner diameter of the washing tub of the vertical washer / dryer, the centrifugal force acting on the laundry during dehydration when the drum rotates at high speed is proportional to the inner diameter. As a result, the force that the laundry sticks to the inner peripheral surface of the drum increases, and as a result, it becomes difficult to peel the laundry stuck to the inner peripheral surface of the drum from the drum after dehydration. Was. In addition, if the laundry is still stuck to the drum after dehydration, the laundry user will not be able to take out the laundry after dehydration. However, there is a drawback that it cannot be sufficiently dried.

  This invention solves the said conventional subject, and it aims at suppressing the sticking to the internal peripheral surface of the drum of the laundry after spin-drying | dehydration.

  In order to solve the above-described conventional problems, the drum-type washing and drying machine of the present invention includes an opening into which the laundry is poured, and a plurality of baffles that protrude in the direction of the rotation axis on the inner wall of the cylindrical portion. A movable body provided on the baffle, and the movable body is provided so as to protrude from the baffle toward the rotation axis of the drum, and is connected to the baffle with a stretchable elastic body. .

  Thus, during the dehydration process in which the drum rotates at a high speed, the movable body rotates with respect to the baffle against the urging force of the elastic body that can be expanded and contracted, and when the drum is braked at the end of the dehydration process, the elastic body Since the movable body is rotated so as to return to the original position by the urging force, the laundry stuck to the inner peripheral surface of the drum can be moved in the rotational direction of the movable body, and the laundry is drummed during the drying process. Can be easily peeled off from the inner peripheral surface, and the efficiency during drying can be increased.

  The drum type laundry dryer of the present invention suppresses the sticking of the laundry to the drum inner peripheral surface at the end of the dehydration step without impairing the stirring function of the laundry in each step of washing, rinsing and drying, and the drying step Sometimes the laundry can be easily peeled off from the inner surface of the drum.

  The first invention comprises a water tank for storing washing water disposed in a housing, a drum having a cylindrical portion rotatably provided in the water tank, and a drive device for rotationally driving the drum, The drum includes an opening for loading laundry, a plurality of baffles projecting in the direction of the rotation axis on the inner wall of the cylindrical portion, and a movable body provided on the baffle, and the movable body includes the baffle In the dehydration process, the drum rotates at a high speed (for example, 700 to 1000 r / m) by being connected to the baffle with a stretchable elastic body. The movable body rotates with respect to the baffle against the urging force of the elastic body that can be expanded and contracted, and when the drum is braked at the end of the dehydration process, the movable body is returned to its original position by the urging force of the elastic body. Because it rotates, inside the drum The laundry stuck to the surface can be moved in the rotational direction of the movable body, the laundry can be easily peeled off from the inner peripheral surface of the drum during the drying process, and the drying process performed following the dehydration process The drying efficiency of laundry can be increased. Moreover, workability | operativity when taking out laundry after a dehydration process can be made easy.

  In the second invention, in particular, the elastic body of the first invention is extended against the urging force when the movable body is actuated with a predetermined rotational force, and the movable body is reversed when the rotational force is released. In the dehydration process in which the drum rotates at high speed, the baffle is driven by the inertial force acting on the laundry on the movable body of the baffle when the drum is started (from the stop state to the high speed rotation state). The movable body of the baffle rotates about the rotating shaft supported by the shaft, and when the drum is braked at the end of the dehydration process (until the drum is stopped from the high speed rotation state), the washing on the movable body of the baffle is performed. In addition to the inertial force acting on the object (opposite to the inertial force acting at the time of starting the drum), the baffle is moved back by the elastic force that returns the movable body of the baffle, so the baffle moves when the drum is braked Due to the rotation of the body, during the dehydration process Laundry stuck to the inner peripheral surface of the arm is a be peeled from the inner peripheral surface of the drum at completion of the dehydration step.

  In the third invention, in particular, the movable body of the second invention can be washed, rinsed and dried by allowing the drum to move against the biasing force of the elastic body when the drum reaches a predetermined number of revolutions during dehydration. In the process, the movable body is held without rotating with respect to the baffle, and the laundry can be satisfactorily stirred.

  In the fourth invention, in particular, the movable body of the first invention is formed in a roller shape, and one of the elastic bodies is attached to the end face thereof and the other is fixed to the baffle, so that the laundry touches the outer peripheral surface of the movable body. Thus, the movable body can be accurately rotated by the inertial force accompanying the rotation of the drum without hindering the expansion / contraction action of the elastic body.

  In the fifth aspect of the invention, in particular, the drum according to any one of the first to fourth aspects of the present invention has a clothing inlet on the front side, and the rotating shaft is inclined forwardly, whereby the dehydration or drying process is performed. Later, the laundry can be easily removed from the drum.

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

(Embodiment 1)
FIG. 1 is a cross-sectional view of a drum-type washing / drying machine according to a first embodiment of the present invention. In FIG. 1, 1 is a case of a drum type washing and drying machine, in which a water tank 2 supported by a plurality of suspensions (not shown) is disposed. The aquarium 2 has a substantially cylindrical shape that is symmetric about the rotation axis, and the rotation axis of the aquarium 2 is disposed so as to incline forward so that the bottom surface side is downward with respect to the horizontal direction. Yes. A drum 4 having a large number of holes 3 in its peripheral wall is contained in the water tank 2, and is rotated by a driving device 5 such as a motor provided on the bottom surface of the water tank 2 so as to rotate forward and backward. .

  And the baffle 6 provided in the surrounding wall in the drum 4 at the time of this forward / reverse rotation efficiently stirs the clothes A by lifting and dropping them. The baffle 6 extends from the bottom surface in the drum 4 toward the opening 2a on the front surface side, and has a wide width on the bottom surface side. A plurality of baffles 6 provided on the peripheral wall in the drum 4 are provided so as to protrude inward in the direction of the rotation axis of the drum 4.

  A fluid balancer 8 is provided on the inlet 7 side provided on the front surface of the drum 4, and the vibration of the clothes is reduced by correcting the bias of the clothes when the drum 4 rotates. A front surface of the housing 1 is provided with a substantially circular slot 7 for putting clothes in and out and a lid 9 for opening and closing the slot. The opening 2 a of the water tank 2 facing the inlet 7 is connected to the housing 1 by a packing 10 while ensuring airtightness.

  The drum 4 has a rotating shaft 4a inclined at a high level on the front surface side and an inner peripheral surface inclined so as to expand from the bottom surface side toward the front surface side. The inner diameter of the bottom surface portion is D1, and the inner diameter of the front surface portion is When D2 is D2, the taper structure is D1 <D2.

  Blowing means 11 for supplying drying air to the drum 4 is provided at the top of the housing 1, and heating means 12 is provided on the downstream side of the blowing means 11. The air blowing means 11 and the heating means 12 are provided in the circulation duct 13. The downstream side of the circulation duct 13 communicates with the supply port 14 provided on the bottom side of the outer tub 2, and the upstream side communicates with the exhaust port 15 provided on the peripheral wall of the outer tub 2. A dehumidification duct 16 and a circulation duct 13 are integrally formed on the side peripheral surface of the outer tub 2.

  When the blowing means 11 provided in the circulation duct 13 is rotationally driven, the air in the outer tub 2 is discharged from the exhaust port 15 into the dehumidification duct 16, so that a large amount of air including moisture in the drum 4 is present on the peripheral surface. It exits into the outer tub 2 from the formed hole 3 and is discharged to the dehumidifying duct 16. Into the dehumidifying duct 16, water is injected from the water injection nozzle 17 by opening a water injection valve (not shown), the moist air is cooled by water, and the water vapor contained in the air is condensed to dehumidify. The water that has cooled the air and the water generated by condensation flow down in the outer tub 2 and are discharged to the outside through the drain port 18. Reference numeral 20 denotes control means for controlling the driving of the driving device 5 and executing the steps of washing, rinsing, dehydration and drying.

  The operation and action of the drum type washing and drying machine configured as described above will be described below. First, the washing operation will be described. During the washing operation, a so-called tumbling operation is performed in which the laundry is lifted and dropped from the bottom to the top as the drum 4 rotates (the rotation speed of the drum 4 is, for example, 40 to 60 rpm). The taper structure of D2 is such that the inclination angle of the lowermost portion of the inner peripheral surface of the drum 4 of the taper portion 4b approaches the horizontal direction, so that the laundry is less likely to be biased toward the bottom surface side of the drum 4 even after repeated tumbling operations. , Tangle between clothing is difficult to occur.

  Next, dehydration operation will be described. During the dehydration operation, the drive device 5 rotates the drum 4 at a high speed (for example, 700 to 1000 rpm), and the centrifugal force acts on the laundry. As shown in FIG. Because of the taper structure of D1 <D2, it can be decomposed into a force that sticks to the inner peripheral surface of the drum 4 and a force that moves the laundry in the tangential direction of the inner peripheral surface of the drum 4, and the latter force is used during the dehydrating operation. The laundry is not stuck to one place on the inner peripheral surface of the drum 4 and the laundry is dehydrated while moving gradually during the dehydration operation. As a result, the laundry is drummed after the dehydration operation is completed. It can suppress sticking to the inner peripheral surface of 4 firmly.

  Further, in the drying operation, the dehumidified air blown from the blower unit 11 is heated by the heating unit 12 in the circulation duct 13 to become hot air at a predetermined temperature, and then into the outer tub 2 from the supply port 14. The air is blown and fed into the drum 4 from a vent 19 formed in the bottom surface of the drum 4. The warm air blown from the bottom surface side of the drum 4 touches the clothing and removes its moisture, so that drying of the clothing is promoted. The air containing moisture is exhausted from the exhaust port 15 into the dehumidifying duct 16 again.

  Next, the structure of the baffle 6 provided on the peripheral wall in the drum 4 will be described. As shown in FIGS. 2 and 3, the bottom surface portion 23 a of the fixing portion 23 of the baffle 6 is fixed to the inner peripheral surface of the drum 4, and the upper surface portion has a circular cross section so that the roller 24 as a movable body does not hit. The shape is cut in an arc. A shaft 25 is formed on both end surfaces of the roller 24 so that the roller 24 is supported by a bearing 26 so that the shaft 25 can rotate.

  Engaging portions 27 are provided on both end surfaces of the roller 24, and one end of a rubber 28 as an elastic body is fixed, and the other end of the rubber 28 is fixed to a fixing portion 23. 6 fixed portions 23 are elastically connected by rubber 28 as an elastic body. The rubber 28 is stretched when a rotational force is applied to the roller 24, and a force is applied to return the roller 24 to the original position by the elastic force.

  The operation and action will be described with reference to FIG. 4 shows the baffle 6 and the laundry A attached to the drum 4, 23 is a fixed portion, 24 is a roller as a movable body, and 28 is rubber as an elastic body. 4A shows a state before and after the dehydration step, and FIG. 4B shows a state during the dehydration step. 4A and 4B, the solid line arrow “a” represents the rotation direction of the drum 4, and the broken line arrow “B” in FIG. 4B represents the rotation direction of the roller 24.

  First, before the drum 4 performs the dehydration process, that is, when the drum 4 is stopped or rotating at a low speed, the roller 24 is in the state shown in FIG. Next, when the drum 4 starts the dehydration process, the inertial force acting on the laundry A during the transition from the stopped state of the drum 4 to the high-speed rotation state (in the direction opposite to the arrow a indicating the rotation direction of the drum in the figure). 4), the roller 24 is rotated by the force) to the state shown in FIG.

  When the drum 4 finishes the dehydration process and starts braking (braking from the high-speed rotation state to the stop state), the inertial force acting on the laundry A during braking (the same direction as the arrow a representing the rotation direction of the drum in the figure) 4), the roller 24 is restored to its original state by the rubber 28, so that the state shown in FIG. That is, the laundry A attached to the inner peripheral surface of the drum 4 in the state of FIG. 4B during the dehydration process is peeled off from the inner peripheral surface of the drum at the end of the drying process by the rotation of the roller 24. .

  In the present embodiment, the elastic constant of the rubber 28 is hardly deformed (elongated) during the washing, rinsing, and drying processes in which the drum 4 rotates at a low speed, and is greatly deformed (elongated) in the dehydrating process in which the drum 4 rotates at a high speed. ), The rotation angle of the roller 24 becomes the largest from the dehydration process to the neutral state after the dehydration process is completed, so that the effect of peeling the laundry A from the inner peripheral surface of the drum 4 becomes remarkable. At the same time, since the roller 24 hardly rotates in each of the washing, rinsing and drying processes, the original function of the baffle 22 for efficiently lifting and stirring the laundry A by the rotation of the drum 4 is not impaired.

  If the shaft 25 of the roller 24 is covered with a cover 29 or the like so as not to be exposed and is accommodated in the baffle 6, the laundry can be prevented from entering the gap between the roller 24 and the bearing 26. .

  As described above, in the present embodiment, when the inner peripheral surface is inclined so as to expand from the bottom surface side to the front surface side of the drum 4, the inner diameter of the bottom surface portion is D1, and the inner diameter of the front surface portion is D2. Since the taper structure is such that D1 <D2, a part of the centrifugal force that acts on the laundry during dehydration acts as a force that moves the laundry in the tangential direction of the inner peripheral surface of the drum 4. Since the laundry is dehydrated while moving, it is possible to prevent the laundry from sticking firmly to the inner peripheral surface of the drum after the dehydration operation. Moreover, since the inclination angle of the lowermost part of the inner peripheral surface of the drum 4 of the taper portion 4b approaches the horizontal direction, the tendency of the laundry to move toward the drum bottom surface side due to gravity is weakened, and the occurrence of entanglement between the laundry is reduced. Can be suppressed.

  Also, during the dehydration process in which the drum rotates at a high speed, the movable body rotates with respect to the baffle against the biasing force of the elastic body that can be expanded and contracted, and when the drum is braked at the end of the dehydration process, the elastic body is attached. Since the movable body is rotated so that the movable body is returned to the original position by the force, the laundry stuck to the inner peripheral surface of the drum can be moved in the rotational direction of the movable body, and the laundry is moved to the drum during the drying process. It can be easily peeled off from the inner peripheral surface.

  And by the structure of the said drum 4, the laundry is easy to displace by a baffle by the synergistic effect with the effect | action which a laundry weakens the deviation to the drum bottom face part side, and can effectively peel off at the end of a dehydration process. it can.

  As described above, the drum-type washing and drying machine according to the present invention sticks the laundry to the drum inner peripheral surface at the end of the dehydration process without impairing the stirring function of the laundry in each of the washing, rinsing, and drying processes. Since the laundry can be easily peeled off from the inner peripheral surface of the drum during the drying process, it is useful as a drum type laundry dryer.

Sectional drawing of the drum type washing-drying machine in the 1st Embodiment of this invention Partially cutaway side view of baffle of the drum-type washer / dryer Side view of the drum type washer-dryer baffle (A) (b) Action diagram of baffle of the drum type washing and drying machine Cross-sectional view of a conventional drum-type washer / dryer

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Water tank 2a Opening part 4 Drum 5 Drive apparatus 6 Baffle 20 Control means 24 Roller (movable body)
28 Rubber (elastic body)

Claims (5)

A water tank for storing washing water disposed in a housing; a drum having a cylindrical portion rotatably provided in the water tank; and a driving device for rotationally driving the drum. An opening to be charged, a plurality of baffles projecting in the direction of the rotation axis on the inner wall of the cylindrical portion, and a movable body provided on the baffle, wherein the movable body is rotated from the baffle to the rotation axis of the drum. A drum-type washing and drying machine provided to protrude toward the center and connected to the baffle with a stretchable elastic body. The drum according to claim 1, wherein the elastic body is extended against a biasing force when the movable body is actuated with a predetermined rotational force, and the movable body is reversed and pulled back to the original position when the rotational force is released. Type washing dryer. The drum type washing and drying machine according to claim 2, wherein the movable body is movable against the urging force of the elastic body when the drum reaches a predetermined number of revolutions during dehydration. The drum-type washing and drying machine according to claim 1, wherein the movable body is formed in a roller shape, and one end of the elastic body is attached to the end face thereof and the other is fixed to the baffle. The drum-type washing / drying machine according to any one of claims 1 to 4, wherein the drum has a garment input port on a front surface side and has a rotating shaft inclined forwardly upward.

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