JP2011056146A - Washing and drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing and drying machine, decreased in the angle of inclination of a drum during drying operation as compared with that in the washing or dehydrating operation. <P>SOLUTION: This washing and drying machine includes: a motor 56; a feed nut 60 for reducing the speed of rotation of the motor 56 through a worm gear 57 to rotatively drive a feed screw 59 provided with a male screw on the outer periphery and extended in the axial direction, the inner periphery of which is provided with a female screw to be engaged with the male screw and supported movably in the axial direction of the feed screw 59 with rotation of the feed screw 59; and an outer tub angle changing means 50 including an expansion rod 54, which is suitable for the feed nut 60, and supported movably in the axial direction of the feed screw 59 with movement of the feed screw 60 to reciprocate between the most contracted draw-in position and the most expanded projecting position. Only during the drying process, the expansion rod 54 is expanded to the projecting position to push an outer tub receiving part 55, which is a part of the outer tub 20, thereby decreasing the angle of inclination of the outer tub more than those in the washing process and in the dehydrating process to approximate to the horizontal state. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dryer or a washing dryer provided with means for drying clothes.

  Drying clothes using a dryer or a washing and drying machine that can perform washing to drying continuously creates high-temperature and low-humidity air with a blower fan and heat source, and blows it into the washing tub to raise the temperature of the clothes. This is done by evaporating moisture from the clothing and discharging the evaporated moisture out of the machine. When the laundry tub is provided with a front outlet with a high front and a rear lower slope, the laundry is easy to put in and out, and the water level rises during the washing process. However, in the drying process, the wet clothes are heavy, so that they are difficult to dry while moving rearward, and uneven drying tends to occur. Therefore, in the drying process, it is desirable that the rotation axis be nearly horizontal.

  2. Description of the Related Art Conventionally, a washing machine or a washing / drying machine has been proposed in which the angle of the washing tub can be changed and the angle of the washing tub is changed for each process so as to be suitable for each of the washing, rinsing, dehydration, and drying processes.

  Equipped with a water tank angle changing device that tilts the angle of the washing tub from the horizontal by pulling the rear part of the washing tub downward with a winding wire. The rotation axis is horizontal during washing, rinsing, dehydrating and drying operations, and at the time of removal A configuration for inclining is disclosed (for example, Patent Document 1).

  A washing tub that rotates around the vertical axis is placed on a tilting table, and the tilting table is tilted to a specified angle using a rack and pinion. In this case, a configuration is disclosed in which a predetermined angle, for example, 30 ° is inclined (for example, Patent Document 2).

  Or the structure which changes the inclination of a washing tub is provided by providing the unit which suspends and supports a washing tub with a hanging rod, and drives a hanging rod up and down (for example, patent document 3).

JP 2009-61085 A JP-A-2-249588 JP 2007-275544 A

  However, in the water tank angle changing device that pulls down the washing tub with the winding wire, for example, the tension of the winding wire suddenly increases due to the vibration of the water tub in the dehydration process, or the vibration of the water tub is transmitted to the housing via the wire. May be.

  The method of placing the washing tub on the tilting table and tilting the tilting table, and the method of driving the hanging bar up and down, the tilting table and the hanging bar support and move the entire mass of the water tank including laundry and washing water. It is necessary to have a drive mechanism with high output that can be used, and to have strength and rigidity that can withstand vibration acceleration from the washing process to the dehydration process. Therefore, the water tank angle changing device is large and complicated, and the operation sound of the drive mechanism is increased.

  Therefore, the present invention is in a state where the water tank is inclined without acting in a process with large vibration such as a washing or dehydration process, and acts on the water tank only in a drying process with slight vibration to reduce the inclination angle of the water tank and to The present invention provides a washing and drying machine provided with a small water tank angle changing means that is close to the shaft and facilitates the replacement of laundry in the drying process to reduce unevenness in drying.

In order to achieve the above object, the present invention provides:
An outer tub in which the inside becomes a washing, dehydration chamber and a drying chamber; a rotating drum or inner tub that is rotatably arranged in the outer tub; and a motor that drives the rotating drum or inner tub; A housing that supports the rotating drum or the inner tub, an exhaust air passage that exhausts hot air from the rotating drum or the inner tub, a blowing passage that blows warm air to the rotating drum or the inner tub, a heating unit, and A drying device having a blowing means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is exhausted air passage, the blowing means, the heating means, the outer tub, and the air blowing path. In the washing and drying machine including the drying process that circulates in this order, the inclination angle of the outer tub in the drying process is greater than the loading and unloading of the laundry, the washing process, the dehydration process, acting on the outer tub only during the drying process. Small tank outer angle change means Characterized by comprising.

  According to the present invention, it is possible to reduce drying unevenness during drying by providing the outer tub angle changing means and reducing the inclination angle of the outer tub from the washing step or the dehydrating step in the drying step. In other words, if the inclination angle of the outer tub is reduced to approach the horizontal, the clothes easily change in the front-rear direction when the rotating drum is rotated. The effect is that energy saving can be realized by reducing the unevenness of drying caused by difficulty in drying.

  Furthermore, the outer tub angle changing means according to the present invention provides an outer tub with a gap larger than the vibration amplitude between the outer tub and the outer tub receiving portion provided in the outer tub in a washing process or a dehydrating process with large vibration. It works only during the drying process with little vibration and pushes the outer tub receiving part provided in the outer tub to reduce the angle of the outer tub and bring it closer to the horizontal, so in the washing process or dehydration process Without receiving the generated vibration reaction force, the component parts can be made of resin, and can be realized with an inexpensive and simple structure.

The perspective view of the washing drier concerning the present invention is shown. Sectional drawing of the washing process of the washing-drying machine which concerns on this invention is shown. Sectional drawing of the intermediate stage of the drying process of the washing-drying machine which concerns on this invention is shown. Sectional drawing of the drying process latter half of the washing-drying machine which concerns on this invention is shown. Sectional drawing after completion | finish of drying of the washing-drying machine which concerns on this invention is shown. BRIEF DESCRIPTION OF THE DRAWINGS The simplified sectional view which shows the washing-drying machine at the time of the outer tank angle change means which concerns on this invention acted on the outer tank. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a simplified cross-sectional view showing a washing / drying machine when an outer tub angle changing means according to the present invention is applied to an outer tub and pressure is further applied to the inside of the outer tub. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a simplified cross-sectional view showing a washing / drying machine when pressure is applied to the inside of an outer tub without an outer tub angle changing means according to the present invention. The perspective view which shows the drawing-in state of the outer tank angle change means based on this invention. The perspective view which shows the protrusion state of the outer tank angle change means based on this invention. The perspective view which shows the drawing-in state of the outer tank angle change means based on this invention. The perspective view which shows the protrusion state of the outer tank angle change means based on this invention. The AA longitudinal cross-sectional view which shows the drawing-in state of the outer tank angle change means based on this invention. The AA longitudinal cross-sectional view which shows the protrusion state of the outer tank angle change means which concerns on this invention. The BB cross-sectional view which shows the drawing-in state of the outer tank angle change means based on this invention. The BB cross-sectional view which shows the protrusion state of the outer tank angle change means based on this invention. CC sectional drawing of the outer tank angle change means based on this invention. DD sectional drawing of the outer tank angle change means based on this invention. EE sectional drawing of the outer tank angle change means based on this invention. The F direction arrow directional view of the outer tank angle change means which concerns on this invention. The simplified diagram which shows the state which the outer tank angle change means based on this invention does not act on an outer tank. The simplified diagram which shows the washing-drying machine at the time of the outer tank angle change means concerning this invention acting on the outer tank. The simplification figure which shows the washing-drying machine at the time of the outer tank angle change means which concerns on this invention retracted. The simplification figure which shows the operation | movement locus | trajectory of the outer tank angle change means which concerns on this invention. The block diagram of the control apparatus of the washing dryer which concerns on this invention is shown. The flowchart of the control processing program of the washing dryer which concerns on this invention is shown.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view of a washing / drying machine according to the present invention. On the upper part of the base 1, an outer frame 2 composed of a steel plate and a resin molded product is placed. The front side of the outer frame 2 is provided with a door 3 for loading and unloading the laundry 30, a front cover 22 and a back cover 23 on the back.

  FIG. 2 shows a cross-sectional view of the washing and drying machine from the washing process to the dehydration process. FIG. 3 is a sectional view of the washing / drying machine in the middle of the drying process, and FIG. 6 is a schematic explanatory view showing the relationship between the outer frame and the outer tub 20 in a simplified manner. FIG. 4 is a cross-sectional view of the washing and drying machine in the latter half of the drying process, and FIG. 7 is a schematic explanatory view showing the relationship between the outer frame and the outer tub 20 in a simplified manner. FIG. 5 is a sectional view of the washing / drying machine at the end of the drying process. In FIGS. 2 to 5, a portion from a fan to a heater, which will be described later, is shown as a simplified schematic diagram for explanation.

  FIG. 8 is a schematic explanatory view showing the inclination of the outer tub when the outer tub inclination apparatus of the present invention is not provided.

  An outer tub 20 is provided inside the outer frame 2 and supported by a plurality of lower suspensions 21. The rotating drum 29 inside the outer tub 20 has the laundry 30 put in with the door 3 opened, and the outer periphery of the opening of the rotating drum 29 reduces vibration due to unbalance of the laundry 30 during dehydration. A fluid balancer 31 is provided. The rotating drum 29 is directly connected to a drum driving motor 36 provided on the back surface of the outer tub 20. A rubber packing 38 made of an elastic body is attached to the opening of the outer tub 20. The packing 38 serves to maintain the watertightness between the outer tub 20 and the door 3. This prevents water leakage during washing, rinsing and dehydration. The rotating drum 29 has a large number of small holes (not shown) for centrifugal dehydration and ventilation on the side wall. A drain port 37 opened in the bottom wall of the outer tub 20 is connected to the drain hose 9 via the drain valve 8.

  A drying device 6 including a dehumidifying duct 5 for drying the laundry 30 in the rotary drum 29, a fan 61 as a blowing means, and a heater 62 as a heating means is fixed to the outer frame 2 apart from the outer tub 20 (not shown). ing. The dehumidifying duct 5 and the ventilation port 32 are connected substantially horizontally by a bellows 4 having a flexible structure, and the drying filter 19 that collects lint as lint provided at the upper end of the dehumidifying duct 5 and the front surface of the washing dryer is substantially omitted. Connected horizontally, the outlet of the drying filter 19 and the inlet of the fan 61 are connected, and further connected to the heater 62. The outlet of the heater 62 and the blowout nozzle 11 are connected to the outer tub 20 substantially vertically with respect to the outer tub 20 by a bellows 7 having a flexible structure between the uppermost surface and the center of the outer tub 20 and in front of the center of the outer tub 20. The vibration of the tank 20 is absorbed. Temperature sensors (not shown) are provided at the drain port 37 and the intake and discharge ports of the fan 61.

  An outer tank angle changing means 50 for changing the inclination angle of the outer tank 20 in the drying step is provided on the upper part of the outer tank 20, and the outer tank angle changing means 50 is fixed to the outer frame 2. As will be described in detail later, the outer tank angle changing means 50 includes a driving mechanism 53 provided with a motor as a driving source and a speed reducing means, and an expansion / contraction rod 54 that expands and contracts by a driving force. From the rear of the outer tub 20 to the front (door 3 side) from the rear to the most extended protruding state. When the telescopic rod 54 protrudes, the outer tub receiving portion 55 is fixed to the outer tub 20 at a position where it comes into contact with the tip. In the retracted state of the telescopic rod 54, there is a predetermined gap a1 between the outer tank receiving portion 55 and the telescopic rod 54, and there is a maximum amplitude of the outer tank 20 during the dehydration process with the largest vibration, for example, an interval of about 25 mm. Be placed.

  The drum-type washing / drying machine configured as described above is configured such that, in the washing process shown in FIG. 2, the laundry is put into the rotary drum 29, water is supplied with the drain valve 8 closed, and the washing water is supplied to the outer tub 20. 17 is stored, and the laundry 30 is washed by rotating the rotary drum 29. In the dehydration step, the drain valve 8 is opened to drain the washing water 17 in the outer tub 20, and the rotary drum 29 is rotated to perform centrifugal dehydration.

  In the washing process to the dehydrating process, the laundry 30 and the washing water 17 are put in the outer tub 20 so that the vibration is large during operation. In particular, if the distribution of the laundry in the rotating drum 29 is biased, the dehydration is performed. The vibration amplitude during the process is, for example, about 20 mm. As described above, since the space between the telescopic rod 54 and the outer tub receiving portion 55 is larger than that, the telescopic rod 54 and the outer tub receiving portion 55 do not contact each other, and the telescopic rod 54 does not collide with the outer tank receiving portion 55 to be damaged.

  Since the outer tub 20 is inclined by the angle θ1 from the washing process to the dewatering process, the washing water 17 is accumulated up to the water level h at the bottom of the rear of the lowest outer tub 20 in the washing process. Then, when the same amount of water is supplied, the water level h from the bottom of the outer tub 20 becomes higher compared to the case where the outer tub 20 is not inclined, so that even if the amount of water is reduced, the laundry can be wetted, saving water. effective.

  When the dehydration is completed and the drying process is started, as shown in FIG. 3, the outer tank angle changing means 50 is operated to extend the telescopic rod 54. After the telescopic rod 54 abuts the outer tub receiving portion 55, the outer tub receiving portion 55 is pushed by b1 further toward the front of the outer tub 20 (the left door 3 side in FIGS. 2 to 4). Swing the whole counterclockwise. Since the outer tub 20 is supported by the suspension 21, the force applied to the outer tub angle changing means 50 is sufficient to push the suspension 21 so that the suspension 21 is swung. Swings as the center. At this time, the inclination angle of the outer tub 20 is reduced and the central axis approaches horizontal, and the inclination angle of the outer tub 20 becomes θ2 (θ2 <θ1). In the drying process, since the dehydration process has already been completed, the weight of the laundry including moisture is lighter than that in the washing and dehydration process, and the rotational speed of the rotating drum is higher than that in the washing and dehydration processes. Since the speed is low and the vibration is slight, the acceleration generated by the vibration is not applied to the outer tub angle changing means 50. Therefore, it is not necessary to increase the strength and rigidity of the outer tub angle changing means 50.

  Since the outer tub 20 swings about the suspension 21 as a center, the outer tub angle changing means 50 requires less pressing force as the position of the outer tub receiving portion 55 that pushes the outer tub 20 is further away from the suspension 21. Therefore, it is convenient to provide the outer tank receiving portion 55 that presses the outer tank 20 on the upper part of the outer tank 20 because the pressing force can be reduced.

  Then, in the middle stage from the first half of the drying process, the rotary drum 29 is rotated while the drain valve 8 is opened, and the fan 61 is operated to suck out the air in the outer tub 20 from the air vent 32 and pass through the water-cooled dehumidifying duct 5 After passing and dehumidifying with water cooling, the air is heated by the heater 62 to generate circulating air 12 that is blown from the blow nozzle 11 toward the laundry 30 in the rotary drum 29. The dehumidification of the circulating air 12 that has taken moisture from the laundry 30 in the rotary drum 29 is performed by opening the cooling water valve (not shown) and flowing out from the cooling water supply pipe 51 to the wall surface in the water-cooled dehumidifying duct 5. 52 is caused to flow down and contact with the circulating air 12. The cooling water 52 that has flowed to the wall surface in the water-cooled dehumidifying duct 5 passes through the drain port 37 and is discharged by the drain hose 9.

  In the latter half of the drying process, the heater 62 is turned off to stop the cooling water 52 as shown in FIG. The external air 16 sucked from the gap at the bottom of the base 1 by opening the intake valve 13 is heated while receiving exhaust heat from the outer tub 20, the drum driving motor 36, and the fan 61 while flowing through the side surface of the outer tub 20. In the middle of drying, the air is sucked into the fan 61 together with the high-temperature housing internal air 15 accumulated in the space between the upper surface of the outer tub 20 and the outer frame 2.

  The sucked interior air 15 is blown onto the laundry 30 to remove moisture from the laundry 30, gets wet, passes through the drain hose 9 from the drain port 37, breaks the water seal of the drain trap 10, and enters the drain pipe 39. Discharged. In the case of a general drain trap, since the water seal height is about 50 to 80 mm, the pressure on the drain hose 9 side is required to be about 1000 Pa or more to break the water seal. Moreover, in order to suppress the odor from the drainage pipe 39, it is necessary to ensure a high pressure (pressure higher than a predetermined pressure) even after the water seal is broken, and a fan is used so as to maintain a high pressure during the exhaust-type drying by the drainage hose. 61 is controlled.

  At this time, a pressure of about 1000 Pa or more is applied to the inside of the outer tub 20 similarly to the drainage hose 9 side. This pressure is equally applied to the inside of the outer tub 20, but one end (door 3 side) of the outer tub 20 is an opening for taking in and out the laundry 30 and is closed by the door 3 through the packing 38. Since it is a structure, the reaction force p of the pressure applied to the opening of the door 3 is applied to the inner side of the outer tub 20, and the outer tub 20 is pushed by the reaction force and tends to move to the right in the figure in FIG. However, since the outer tank angle changing means 50 is in contact with the outer tank receiving portion 55, the upper surface of the outer tank 20 cannot move in the right direction in the figure. Therefore, as schematically shown in FIG. 7, the outer tub 20 swings in the direction of the arrow CCW around the outer tub receiving portion 55, the inclination angle θ4 of the outer tub further decreases, and the rotation axis approaches horizontal.

  This makes the decrease in the inclination angle more apparent when compared with the case without the outer tank angle changing means 50 according to the present invention.

  If there is no outer tub angle changing means 50 of the present invention, the outer tub 20 receives a pressure p and receives a rotational moment around the suspension 21 supporting the lower portion as shown in FIG. Therefore, the inclination angle is further increased from the original broken line position (inclination angle θ1) to the position θ5 (θ5> θ1) indicated by the solid line, and the inclination angle is further increased. That is, when the inclination angle θ5 of the outer tub 20 without the outer tub angle changing means 50, the inclination angle θ4 with the outer tub angle changing means 50, and the original inclination angle θ1 are compared, θ4 <θ1 <θ5 And the outer tank angle changing means 50 is provided on the upper surface of the outer tank 20 and abuts against the outer tank receiving portion 55 to push the outer tank 20 in the direction of decreasing the inclination angle (door 3 side). By increasing the pressure inside the outer tub 20, the inclination angle of the outer tub 20 is further reduced and the rotation axis approaches horizontal.

  After the drying, as shown in FIG. 5, the cooling water 52 is flowed by lowering the rotational speed of the fan 61 to a pressure level that does not break the water seal while keeping the pressure on the drainage hose 9 side higher than the pressure on the drainage pipe 39 side. The water sealing of the drain trap 10 is restored and the drying process is completed. In this way, after drying is completed, water is supplied to the drainage pipe 39 via the drainage hose while maintaining the pressure on the drainage hose 9 side at a predetermined level or more, so that the odor from the drainage pipe 39 is suppressed and the drain trap 10 The water seal can be restored. The drain trap 10 may be recovered at the end of the drying operation (for exhaust of the drain hose) or after the drying operation is finished as long as the pressure on the drain hose 9 side is kept high.

  The angle of inclination of the outer tub 20 at this time will be described. The outer tub angle changing means 50 operates in the same manner as in FIG. 7 and the pressure p is applied to the inside of the outer tub. Therefore, the angle θ4 approaches the angle θ1.

  Next, the configuration of the outer tub angle changing means 50 in the present invention will be described in detail with reference to FIGS. 9 and 10 are perspective views of the outer tank angle changing means 50. FIG. 9 shows a retracted state, and FIG. 10 shows a protruding state. 11 and 12 are perspective views seen from the opposite sides of FIGS. 9 and 10, respectively. FIGS. 13 and 14 are cross-sectional views taken along arrows AA in FIGS. 9 and 10, respectively, and FIGS. 15 and 16 are cross-sectional views taken along lines BB in FIGS. 17 is a CC cross-sectional view, FIG. 18 is a DD cross-sectional view, and FIG. 19 is an EE cross-sectional view. 20 is a view taken in the direction of arrow F in FIG.

  13 to 16 and FIG. 19, a worm gear 57 serving as a speed reduction means is fixed to the rotation output shaft of the motor 56, and the worm gear 57 meshes with a worm wheel 58 that is rotatably supported. The rotation torque is reduced to transmit the rotational torque. The worm wheel 58 has a feed screw 59 provided with a screw on the outer periphery thereof, the axis of which is fixed concentrically, and extends in the direction of the telescopic rod 54.

  A female screw that meshes with the feed screw 59 is provided on the inner periphery of the feed nut 60 and meshes with the feed screw 59. When the feed screw 59 rotates, the feed nut 60 moves in the longitudinal axis direction of the feed screw 59. .

  The telescopic rod 54 is generally U-shaped, the U-shaped open part is disposed on the side close to the drive mechanism 53, the closed part is disposed on the side far from the drive mechanism 53, and a rubber plate is disposed at the tip. 63 is provided, and when the outer tank receiving portion 55 is pushed, the rubber plate 63 is interposed to prevent the contact portion from slipping, and vibration transmission from the outer tank to the telescopic rod 54 is reduced.

  A drive hole 54a is provided in the vicinity of the end of the telescopic rod 54 on the drive mechanism 53 side, and is supported so as to be slightly swingable between a pin 60a provided protruding from the feed nut 60. As shown in FIG. 20, when the outer tub angle changing means 50 is attached to the washing / drying machine, it is set to the vertical direction, that is, the vertical direction. When the telescopic rod 54 is extended, the telescopic rod 54 hangs down around the drive hole 54a (pin 60a) by gravity, and the tip of the telescopic rod 54 descends by δ1.

  That is, when the motor 56 is rotated and decelerated by the worm gear 57 and the worm wheel 58 and the feed screw 59 is rotated, the telescopic rod 54 is moved in the axial direction of the feed screw 59 together with the feed nut 60 to expand and contract. When rotating in one direction, the telescopic rod 54 extends, and when rotating in the opposite direction, the telescopic rod 54 is shortened, so that the reciprocating operation of expansion and contraction can be repeated.

  Since the outer tank angle changing means 50 acts only during a drying process with slight vibration, the reaction force received when the telescopic rod 54 is extended to reduce the inclination angle of the outer tank can be considered only a static reaction force. That's fine. The telescopic rod 54 receives a reaction force in the compression direction from the outer tank receiving portion 55 and is transmitted to the case of the drive mechanism 53 via the feed nut 60 and the feed screw 59. Here, by arranging the telescopic rod 54, the feed nut 60, and the feed screw 59 in a straight line, each component receives only a compressive force without receiving a bending moment. Since a general material such as a resin has a higher strength against a compressive load than a bending or tensile load, it is effective to arrange in this manner, and the configuration includes a telescopic rod 54, a feed nut 60, and a feed screw 59. Even if the parts are made of resin, sufficient strength can be obtained.

  Here, when the feed screw 59 is in the protruding position, an axial compressive load is applied, and a screw is cut between the feed screw 59 and the feed nut 60, so that the rotational torque is applied to the feed screw 59 by the compressive load. Occurs. If the feed screw 59 is rotated by a compressive load, the telescopic rod 54 is undesirably retracted from the protruding position. However, in the outer tub angle changing means 50 of the present invention, the feed screw 59 is formed integrally with the worm wheel 58, and the worm wheel 58 meshes with the worm gear 57. Therefore, the rotational torque of the feed screw 59 is rotated by the worm gear 57. Be blocked. Such a configuration is preferable because the feed screw 59 is not rotated by the compressive load generated in the telescopic rod 54 and the telescopic rod 54 is not pulled in without the motor 56 being energized, and the compressive load can be reliably supported. .

  An upper frame 64 and a lower frame 65 extend from the drive mechanism 53 along the feed screw 59 in parallel with the feed screw 59, and ends of the upper frame 64 and the lower frame 65 are connected by a frame connecting portion 66. Yes. The frame connecting portion 66 is provided with a gap from the tip of the feed screw 59, and a cylindrical pin 67 provided concentrically with the feed screw 59 protrudes on the feed screw 59 side. It fits into a recess or through hole 59 a provided at the tip of the feed screw 59. By fitting the pin 67 and the feed screw 59, it is preferable because the tip end of the feed screw 59 can be prevented and the rigidity can be increased.

  If the upper frame 64 and the lower frame 65 are connected to each other by the side connection part 68, the rigidity can be further increased.

  A part of the upper frame 64 is a detection means arrangement portion 69 extending laterally from the feed screw 59, and two micro switches are arranged in this embodiment. These microswitches extend the telescopic rod 54 most, and the microswitch 70a, which is the first detecting means for detecting the retracted position shown in FIGS. This is the micro switch 70b which is the second detection means for detecting the protruding position shown in FIGS. Each micro switch 70a, 70b is provided with a detection lever 71a, 71b provided with a roller at the tip. When the micro switch 70a, 70b is pushed more than a predetermined distance in the direction close to the micro switch body, an electrical contact inside the micro switch 70a, 70b is provided. For example, switching from the ON state to the OFF state.

  A first detection projection 72 is provided in the vicinity of the drive hole 54a of the telescopic rod 54 and in the vicinity of the micro switch 70, and in the retracted position where the telescopic rod 54 is fully shortened as shown in FIGS. The first detection projection 72 detects the retracted position by pushing the detection lever 71a toward the micro switch 70a to turn the micro switch 70a from the ON state to the OFF state.

  As shown in FIGS. 10 to 12, in the protruding position where the telescopic rod 54 is fully extended, the first detection protrusion 72 pushes the detection lever 71b toward the micro switch 70b, and the micro switch 70b is turned from the ON state to the OFF state. Thus, the protruding position is detected.

  In the present embodiment, the detection means is a micro switch. However, the detection means is not limited to a micro switch, and may be a pair of a light emitting element and a light receiving element, or a pair of a magnet and a Hall element. There may be.

  In the retracted position as shown in FIGS. 11 to 15, a second detection projection 73 is provided on a portion of the telescopic rod 54 that contacts the detection lever 71 b of the second micro switch 70 b. The second detection protrusion 73 is in contact with the detection lever 71b, but the microswitch 70b has a dimensional relationship that keeps the ON state. That is, the height is lower than that of the first detection protrusion 72, and the pressing amount of the detection lever 71b is small.

  By providing the second detection projection 73, the detection lever 71b is prevented from rattling at the retracted position of the outer tub angle changing means 50 during a process with large vibration such as a washing process or a dehydration process. Can prevent the occurrence of damage and noise.

  A part of the detecting means arranging portion 69 is extended so as to contact the telescopic rod 54, and provided with stopper means 74 that can be elastically deformed. The stopper means 74 is deformed by contact with the telescopic rod 54 at the retracted position as shown in FIGS. 9, 11 and 15, and is perpendicular to the direction in which the telescopic rod 54 operates with respect to the telescopic rod 54. By applying force in the direction of an arrow 75 and pressing the telescopic rod 54 against the lower frame 65, rattling can be prevented, and occurrence of breakage and abnormal noise can be prevented.

  Next, the operation of the configuration in which the telescopic rod 54 hangs down in the direction of gravity and the tip is lowered by δ as shown in FIG. 20 will be described with reference to FIGS. 21 to 23 are simplified cross-sectional views showing the relationship between the position of the outer tub 20 and the operation of the outer tub angle changing means 50 in the drying process. FIG. 24 is a simplified side view showing the movement trajectory of the telescopic rod 54.

  In FIG. 21, the outer tub angle changing means 50 is in the retracted position, and the laundry 30 is shown in the outer tub 20. The laundry 30 is a poultice before the dehydration process is completed and before entering the drying process. When the position of the outer tub 20 in a state where there is no laundry 30 is indicated by a broken line 20 ′, the outer tub becomes heavier due to the mass of the water contained in the laundry 30 and the laundry, so the suspension 21 contracts and the position of the outer tub 20 Falls by δ2. When starting the drying process, the outer tub angle changing means 50 operates from the retracted position to the protruding position in this state. FIG. 22A shows a state in which the inclination angle of the outer tub 20 is reduced from θ1 to θ2 by the expansion rod 54 contacting the outer tub receiving portion 55 and being displaced by b1 as in FIGS. However, this operation is performed at the position where the outer tub 20 is lowered.

  As the drying process proceeds and the laundry 30 dries, the moisture evaporates and the mass of the outer tub 20 becomes lighter, so that the suspension 21 gradually extends and the position of the outer tub 20 gradually rises. This state is illustrated in FIG. Since the position of the outer tub 20 is raised while the telescopic rod 54 is in contact with the outer tub receiving portion 55, only the tip of the telescopic rod 54 is lifted. The lift amount δ3 varies depending on the amount of moisture contained in the laundry, and cannot be generally stated, but increases by about 5 mm to 10 mm, for example. After the drying process is completed, the outer tub angle changing means 50 moves from the protruding position to the retracted position. At this time, the outer tub 20 is in a state in which the suspension is contracted by the mass of the dried laundry 30, so FIG. It does not rise to the position of the outer tub 20 ′ (shown by a broken line) in a state where there is no similar laundry 30.

  The movement trajectory of the series of telescopic rods 54 is collectively shown in FIG. 24. The tip 54b of the telescopic rod 54 extends in the direction of the arrow 76a while hanging down, and the outer tank receiving portion 55 is pushed to tilt the outer tank 20. 22 (a), and the outer tub 20 rises with the drying process, so that it rises by δ3 in the arrow 76b direction, and moves in the arrow 76c direction to the retracted position when the drying process ends. . In this way, the expansion and contraction of the telescopic rod 54 does not simply move in the axial direction of the feed screw 59 but involves swinging in the vertical plane, so the telescopic rod 54 is not fixed to the feed nut 60 but is pinned. A configuration in which a backlash is provided in the vertical direction via the drive hole 60a and the drive hole 54a is preferably supported.

  FIG. 25 is a block diagram of the control device 138 of the washing / drying machine. A microcomputer 150 is connected to an operation button input circuit 151, a water level sensor 134, and a temperature sensor 152 connected to each switch (not shown), and receives various information signals in the user's button operation, washing process, and drying process. The output from the microcomputer 150 is connected to a drive circuit 154 and connected to a water supply electromagnetic valve 116, a drain valve 8, a drum drive motor 36, a fan 61, a heater 62, an intake valve 13, a cooling water valve 51a, and the like. Controls opening, closing, rotation, and energization of the. Further, it is connected to a display 114 such as a 7-segment light emitting diode, a light emitting diode 156, and a buzzer 157 for informing the user of the operating state of the washing machine.

  The microcomputer 150 is activated when the power switch 139 is pressed and the power is turned on, and executes a basic control processing program for washing and drying as shown in FIG.

Step S101
Check the status of the washer / dryer and make initial settings.

Step S102
The display 114 of the operation panel 106 is turned on, and a washing / drying course is set according to an instruction input from an operation button switch (not shown). When no instruction is input, the standard washing / drying course or the previous washing / drying course is automatically set. For example, when an operation button switch is instructed, a high finishing course for drying is set.

Step S103
The process branches after monitoring an instruction input from a start switch (not shown) on the operation panel 106.

Step S104
Perform the laundry. Laundry is performed in the order of washing, intermediate dehydration, rinsing, and final dehydration. Since this is the same as a normal drum-type washing and drying machine, a detailed description thereof is omitted.

Step S105
The process branches after confirming whether the washing / drying course is set. When only the washing course is set, the driving is ended.

Step S106
The initial temperatures of the drain port 37 and the fan intake port at the lower part of the outer tub 20 are measured.

Step S107
When a washing / drying course is set, hot air dehydration is performed. In the hot air dehydration, the fan 61 is operated at a low speed, the heater 62 is energized, and hot air is blown into the rotary drum 29 to raise the temperature of the clothing. At the same time, the rotating drum 29 is rotated at a high speed to effectively dehydrate moisture from the warmed clothing (because the viscosity of water decreases as the temperature rises, it can be efficiently dehydrated). In the present embodiment, the rotation speed of the fan 61 is set to about 11000 rotations per minute. This is to prevent the allowable current value (15 A) from being exceeded.

Step S107a
The motor 56 is driven to rotate the feed screw 59 to extend the telescopic rod 54, the outer tank angle changing means 50 is moved from the retracted position to the protruding position, and the angle of the outer tank 20 is decreased.

Step S108
Dry operation 1 is executed. The fan 61 is rotated at a low speed, the heater 62 is energized, the forward and reverse rotations of the rotating drum 29 are repeated, and hot warm air is blown onto the clothes while changing the position of the clothes in the rotating drum 29. The temperature of the entire clothing rises and moisture evaporates from the clothing.

Step S109
The process branches after confirming whether the elapsed time from the start of drying has reached the specified time.

Step S110
The cooling water valve 51a is opened and the cooling water 52 is poured to perform water cooling dehumidification.

Step S111
An intermediate temperature between the drain port 37 and the fan intake port at the lower part of the outer tub 20 is measured.

Step S112
The process branches after confirming whether the elapsed time from the start of drying has reached the specified time.

Step S113
The process branches after confirming whether the difference between the intermediate temperature and the initial temperature has reached the specified temperature.

Step S114
When the specified time has elapsed from the start of drying, or when the difference between the intermediate temperature and the initial temperature is greater than the specified temperature, the dryness of the laundry (= the weight of the dry cloth / the weight of the compress) is 0.90 to 0.95 is determined, the heater 62 is turned off, the intake valve 13 is opened, the cooling water valve 51a is closed, the fan 61 is rotated at high speed, and the moisture of the laundry 30 is discharged from the drain hose 9 to the drain pipe 39. .

Step S115
The end temperatures of the drain port 37 and the fan intake port at the lower part of the outer tub 20 are measured.

Step S116
The process branches after confirming whether the elapsed time from the start of exhausting has reached the specified time.

Step S117
The process branches after confirming whether the difference between the intermediate temperature and the end temperature has reached the specified temperature.

Step S118
When the specified time has elapsed from the start of exhausting, or when the difference between the intermediate temperature and the end temperature is greater than the specified temperature, the dryness of the laundry (= dry cloth mass / compress weight) is 1.0 or more. It is judged that the drying is completed, and the cooling of the fan 61 is decreased to a pressure level that does not break the water seal while keeping the pressure on the drain hose 9 side higher than the pressure on the drain pipe 39 side, and the cooling water valve 51a is opened for cooling. The water 52 is poured to recover the water seal of the drain trap 10.

Step S119
The process branches after confirming whether or not the elapsed time after opening the cooling water valve 51a has reached a specified time.

Step S120
The process branches after confirming whether or not the pressure of the water level sensor 134 has reached a specified pressure.

Step S121
When the specified time has elapsed since the cooling water valve 51a was opened, or when the pressure of the water level sensor 134 is greater than the specified pressure, it is determined that the water sealing of the drain trap 10 has been recovered, and the fan 61 is stopped. The drum driving motor 36 is stopped, the intake valve 13 is closed, and the cooling water valve 51a is closed.

Step S122
The motor 56 is driven to rotate the feed screw 59, the retractable rod 54 is retracted, the outer tank angle changing means 50 is operated from the protruding position to the retracted position, the inclination angle of the outer tank 20 is returned, and the drying process is completed. .

  The washing / drying machine configured as described above includes an outer tub angle changing means, and reduces the inclination angle of the outer tub during the drying process as compared with the washing process or the dehydration process. Can be reduced. That is, if the inclination angle of the outer tub is reduced, the clothes easily change in the front-rear direction when the rotary drum 29 is rotated, so that the laundry with high moisture becomes harder to dry due to the inclination of the outer tub. There is an effect that energy saving can be realized by reducing dry unevenness.

  Since the inclination angle of the outer tub is increased during the washing process, the dehydration process, and the loading and unloading of the laundry, the washing water has a higher water level at the bottom of the bottom during the washing process. Water saving effect. Also, with regard to the loading and unloading of the laundry, the larger the inclination angle, the easier it is to unload the laundry because the outlet is upward.

  The outer tub angle changing means according to the present invention provides a gap larger than the vibration amplitude between the outer tub and the outer tub receiving portion provided in the outer tub in a washing process or a dehydrating process with large vibration. Since it is separated, it acts only during the drying process where the vibration is small and the weight of the laundry is light, and the outer tub receiving part provided in the outer tub is pushed to reduce the angle of the outer tub, so that the washing process or dehydration Since it is sufficient to maintain the strength to receive only the static reaction force without receiving the vibration reaction force generated in the process, the feed screw and the telescopic rod can be made of resin, and can be realized with an inexpensive and simple structure. .

  The outer tank angle changing means according to the present invention is configured to decelerate the rotation of the motor with the worm gear and the worm wheel, rotate the feed screw, and move the telescopic rod fitted with the feed nut in the axial direction of the feed screw. Even if a compression load is applied to the telescopic rod and a rotational torque is applied to the feed screw, the rotation can be prevented by the worm gear, so that it is possible to reliably support the compressive load generated on the telescopic rod without energizing the motor.

  The outer tub angle changing means according to the present invention is further configured to swing in the vertical direction when the telescopic rod is extended, so that the laundry is dried before and after the drying step and becomes lighter and the outer tub rises. Even so, the tip of the telescopic rod rises following the position (height) of the outer tub, so the telescopic rod, feed nut, and feed screw are forcibly bent and damaged, or the rotational torque of the feed screw is reduced. There is no increase.

  According to the present invention, since the outer tank angle changing means pushes the upper surface of the outer tank to reduce the inclination of the outer tank, the outer tank angle changing means is operated and the pressure inside the outer tank is increased. Furthermore, there is an effect that energy saving can be realized by further reducing the inclination angle of the outer tub and reducing unevenness of drying.

  According to the present invention, the stopper means for suppressing the rattling of the telescopic rod and the second detection projection for suppressing the rattling of the detection lever of the microswitch are provided at the retracted position of the outer tank angle changing means. Even in a process with large vibrations such as a washing process and a dehydration process, the telescopic rod and the detection lever do not rattle, and it is preferable because noise can be prevented and damage due to vibration can be prevented.

  In this embodiment, an intake valve is provided, and in the drying process, the intake valve is opened and the pressure inside the outer tub is increased and exhausted from the drain hose. However, the present invention is limited to such a form. However, the configuration may be such that the intake valve is closed or the intake valve is not provided. In a configuration in which the intake valve is closed or does not have an intake valve, the dehumidification blower path, the blower fan, the heater to be heated, which are dehumidified by discharging the humid air from the outer tank and flowing the cooling water to cool it, An air passage that circulates through a blower passage that blows into the outer tub is formed, and high-humidity air discharged from the outer tub is dehumidified and dried. Even in such a configuration, as shown in FIGS. 3 to 6, the inclination angle of the outer tub is reduced from θ1 to θ2, so that drying unevenness in the drying process can be reduced and energy saving can be realized.

DESCRIPTION OF SYMBOLS 1 Base 2 Outer frame 3 Door 4, 7 Bellows 5 Dehumidification duct 6 Drying device 8 Drain valve 9 Drain hose 10 Drain trap 10a Hole 11 Blowing nozzle 12 Circulating air 13 Intake valve 14, 15 Housing internal air 16 External air 17 Washing water 19 Drying filter 20 Outer tank 21 Suspension 22 Front cover 23 Back cover 24 Bent part 27 Filter duct 29 Rotating drum 30 Laundry 31 Fluid balancer 32 Ventilation port 36 Drum drive motor 37 Drain port 38 Packing 39 Drain pipe 42 Intake port 50 Outside Tank angle changing means 51 Cooling water supply pipe 51a Cooling water valve 52 Cooling water 53 Drive mechanism 54 Telescopic rod 54a Drive hole 55 Outer tank receiver 56 Motor 57 Worm gear 58 Worm wheel 59 Feed screw 60 Feed nut 60a, 67 Pin 61 Fan 62 Heater 63 On rubber plate 64 65 the lower frame 66 frame connecting portion 68 side connecting portion 69 detector placement portion 70a, 70b microswitch 71 detecting lever 72 first detecting protrusion 73 second detection projection 74 stopper means

Claims (9)

  An outer tub in which the inside becomes a washing, dehydration chamber and a drying chamber; a rotating drum or inner tub that is rotatably arranged in the outer tub; and a motor that drives the rotating drum or inner tub; A housing that supports the rotating drum or the inner tub, an exhaust air passage that exhausts hot air from the rotating drum or the inner tub, a blowing passage that blows warm air to the rotating drum or the inner tub, a heating unit, and A drying device having a blowing means, and a drain hose for discharging water discharged from the outer tub, and when drying, the air is exhausted air passage, the blowing means, the heating means, the outer tub, and the air blowing path. In the washing and drying machine including a drying process that circulates in the order of, the outer tub acts on the outer tub only during the period of the drying process, and the inclination angle of the outer tub in the drying process is greater than the input / output of laundry, the washing process, and the dehydration process. Small tank outer angle change means Washing and drying machine, characterized in that it comprises.   2. The laundry according to claim 1, wherein the outer tub angle changing means is disposed with a predetermined gap from the outer tub in the loading / unloading of the laundry, the washing process, and the dewatering process, and does not act on the outer tub. Dryer.   The washing / drying machine according to claim 2, wherein the predetermined gap is larger than a maximum value of vibration amplitude generated in the dehydration process. The outer tub angle changing means includes a motor, a deceleration means for decelerating the rotation of the motor,
The feed is driven by the motor via the speed reduction means and is fitted with the feed screw extending in the axial direction with a screw provided on the outer periphery and the female screw provided on the inner periphery with the female screw provided on the outer periphery. A feed nut supported so as to be movable in the axial direction of the feed screw by rotation of the screw, and fitted to the feed nut, and supported so as to be movable in the axial direction of the feed screw along with the movement of the feed nut, The washer-dryer according to any one of claims 1 to 3, further comprising: a telescopic rod capable of reciprocating between a most shortened retracted position and a most extended protruding position.   5. The washing / drying machine according to claim 4, wherein the speed reducing means is a worm gear provided on a rotating shaft of a motor and a worm wheel provided integrally with the feed screw.   The washing / drying machine according to any one of claims 4 to 5, wherein the telescopic rod is supported so as to be swingable in a vertical direction with respect to the feed nut.   The outer tub angle changing means further includes a first detecting means for detecting a retracted position where the telescopic rod is shortened the most, and a second detecting means for detecting a protruding position where the telescopic rod is most extended, The telescopic rod moves between a position detected by the first detection means and a position detected by the second detection means, according to any one of claims 1 to 6. Washing and drying machine.   The outer tub angle changing means further includes a stopper means for preventing rattling of the telescopic rod by applying a force in a direction orthogonal to the moving direction of the telescopic rod at the retracted position where the telescopic rod is shortened most. The washer-dryer according to any one of claims 1 to 7, further comprising:   The washer / dryer is further provided with an air inlet that is an openable and closable opening in the exhaust air passage, and all the air discharged from the rotating drum or the inner tub by opening the air inlet during the drying operation. Or the part is exhausted via the said drain hose, The washing-drying machine in any one of Claim 1 to 8 characterized by the above-mentioned.

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