JP2011120818A - Washing and drying machine - Google Patents

Abstract

An object of the present invention is to make it possible to easily check the adhesion state of foreign matters to a bent portion 19 of a filter duct 20.
A mirror 44 reflects light from the outside of the outer box through the inspection port 40 to the bent portion 19 when the cover 34 is open, and the user can check the light from the outside of the outer box when the cover 34 is open. It is arranged so that it can be recognized by looking into 40. In the case of this configuration, the user can confirm the adhesion state of the foreign matter to the bent portion 19 with the mirror 44, so that the trouble of adjusting the position of the line of sight is reduced.
[Selection] Figure 6

Description

  The present invention relates to a laundry dryer having both a washing function for washing laundry and a drying function for drying laundry.

  Some of the washing / drying machines are provided with a ventilation path, a fan device, a heater, and a cooler. The ventilation path has an annular shape with the water receiving tank as a part of the path, and the air in the water receiving tank circulates along the ventilation path in the operating state of the fan device. The heater heats the air that circulates in the ventilation path, and the cooler cools the air that circulates in the ventilation path on the upstream side of the air flow compared to the heater, and the dehydration process ends. If there is laundry in the water receiving basin immediately after the dehydration, the cooler dehumidifies by cooling the air, and the heater heats the dehumidified air to produce low humidity hot air. Supply to the laundry in the water tank.

JP 2008-12119 A Patent No. 4059236

  The applicant of the present application proposed in Japanese Patent Application No. 2009-033934 to provide an inspection port for attaching the lint filter device to the ventilation path. The inspection port is closed when the cover member that is a part of the lint filter device is closed, and is opened when the cover member is opened when the lint filter device is removed. The user closes the cover member. Open the inspection port by operating from the state to the open state, and look into the inside of the ventilation path through the inspection port from the outside of the ventilation path when the inspection opening is open, such as lint (thread waste) to the inner surface of the ventilation path You can check the adhesion of foreign matter. However, in the case of this washing machine dryer, since the inspection port is provided on the ceiling surface of the main body of the washing dryer, the user who is particularly short when the user looks into the inside of the ventilation path through the inspection port. May have blind spots. For this reason, it is necessary for the user to adjust the position of the line of sight in consideration of the blind spot, and the inspection work for checking the adhesion state of the foreign matter is troublesome.

  The washing / drying machine of the present invention has a water receiving tank for receiving water, and a plurality of penetrations through which water in the water receiving tank can be circulated. A washing tub having a hole, an air passage that has an annular shape with the water receiving tub as a part of the path, and in which air can circulate; and the air in the water receiving tub extends along the air passage. And a fan device for heating the air circulating along the ventilation path, and cooling the air circulating along the ventilation path on the upstream side of the air flow compared to the heater. Used between a cooler, an inspection port for a user to visually inspect the inside of the ventilation path from the outside of the ventilation path, a closed state in which the inspection opening is closed, and an open state in which the inspection opening is opened Cover member that can be operated by a person and opening the cover member A reflective member having a reflective surface for reflecting light from the outside of the ventilation path to a predetermined inspection area inside the ventilation path from the outside of the ventilation path, the reflection member being in an open state of the cover member And it has the characteristics that it is arrange | positioned so that a user can recognize the said reflective surface visually through the said inspection port from the exterior of the said ventilation path.

  The user can visually recognize the reflecting surface of the reflecting member by looking into the inside of the ventilation path through the inspection port from the outside of the ventilation path with the cover member open. In the open state of the cover member, the reflecting surface of the reflecting member reflects light from the outside of the ventilation path to the inspection area inside the ventilation path through the inspection port. For this reason, the user can visually check the adhesion state of the foreign matter to the inspection area inside the ventilation path through the reflecting surface of the reflecting member. The position can be easily confirmed, and the trouble of adjusting the position of the line of sight such as bending in consideration of the blind spot is reduced.

The figure which shows Example 1 (the perspective view which shows the external appearance of a washing-drying machine) Sectional drawing which shows the internal structure of a washing dryer Block diagram showing the electrical configuration of the washer / dryer Perspective view showing the appearance of the water receiving tank Perspective view showing the filter frame with the appearance removed (A) is sectional drawing which shows the internal structure of a filter case, (b) is a figure which expands and shows Xb part Sectional view showing the internal configuration of the motor case at the front limit position of the rod Sectional view showing the internal configuration of the motor case at the retracted position of the rod (A) The figure which shows a mirror by a front limit angle, (b) is a figure which shows a mirror by a back limit angle Diagram showing the operation panel Flow chart showing main processing of main control circuit Flow chart showing timer interrupt processing of main control circuit Flow chart showing tilt angle adjustment processing of main control circuit Flow chart showing pause interrupt processing of main control circuit Fig. 6 (a) equivalent diagram

  The outer box 1 in FIG. 1 has a hollow shape having a front plate, a rear plate, a left side plate, a right side plate, a bottom plate and a top plate. ing. A door 3 is attached to the front plate of the outer box 1. The door 3 can be operated by a user in front between the closed state and the open state. The door 2 is closed when the door 3 is closed, and the door 2 is opened when the door 3 is open. The As shown in FIG. 2, a water receiving tank 4 is fixed inside the outer box 1. The water receiving tank 4 has a cylindrical shape with a closed rear surface, and is disposed in an inclined state in which the axial center line CL descends from the front toward the rear. The front surface of the water receiving tank 4 is open. When the door 3 is closed, the door 3 closes the front surface of the water receiving tank 4 in an airtight state.

  As shown in FIG. 2, a drum motor 5 is fixed to the rear plate of the water receiving tank 4 so as to be located outside the water receiving tank 4. The drum motor 5 is composed of a three-phase DC brushless motor capable of speed control, and the rotating shaft 6 of the drum motor 5 protrudes into the water receiving tank 4. The rotating shaft 6 is disposed so as to overlap the axial center line CL of the water receiving tank 4, and the drum 7 is fixed to the rotating shaft 6 so as to be located inside the water receiving tank 4. The drum 7 has a cylindrical shape with a closed rear surface, and rotates integrally with the rotary shaft 6 in the operation state of the drum motor 5. The front surface of the drum 7 faces the inlet / outlet 2 from the rear via the front surface of the water receiving tank 4. Inside the drum 7, the door 2 is open and the front of the inlet / outlet 2, the front of the water receiving tank 4 and the drum 7 are opened. Laundry is put in and out through each of the fronts. The drum 7 corresponds to a washing tub, and the drum motor 5 corresponds to a washing motor.

  As shown in FIG. 2, a plurality of through holes 8 are formed in the drum 7. Each of the plurality of through holes 8 allows water to flow therethrough, and the internal space of the drum 7 communicates with the internal space of the water receiving tank 4 through each of the plurality of through holes 8. A plurality of baffles 9 are fixed to the inner peripheral surface of the drum 7. Each of the plurality of baffles 9 moves in the circumferential direction around the axis line CL as the drum 7 rotates. When the laundry is put in the drum 7, the drum 7 The inner laundry moves in the circumferential direction while being hooked on each of the plurality of baffles 9.

  As shown in FIG. 2, a water supply valve 10 is fixed inside the outer box 1. The water supply valve 10 has an inlet and an outlet, and the inlet of the water supply valve 10 is connected to a water tap. This water supply valve 10 is driven by a water supply valve solenoid 11 (see FIG. 3) comprising an electromagnetic solenoid, and the outlet of the water supply valve 10 is opened and closed according to the electrical state of the water supply valve solenoid 11. Switch between each other. The outlet of the water supply valve 10 is connected to the internal space of the water receiving tank 4, and tap water is injected into the water receiving tank 4 through the outlet of the water supply valve 10 when the water supply valve 10 is open. The upper end of a drain pipe 12 is connected to the water receiving tank 4 at the bottom, and a drain valve 13 is interposed in the drain pipe 12. The drain valve 13 is driven by a drain valve motor 14 (see FIG. 3), and is switched between an open state and a closed state according to the amount of rotation of the drain valve motor 14. In the closed state of the drain valve 13, tap water injected from the water supply valve 10 into the water receiving tank 4 is stored in the water receiving tank 4, and in the open state of the drain valve 13, the tap water is injected into the water receiving tank 4 from the water supply valve 10. The tap water is discharged outside the water receiving tank 4 through the drain pipe 12.

  As shown in FIG. 4, an outlet duct 15, a filter case 16, a divided upper duct 17, and a divided lower duct 18 are accommodated inside the outer box 1, as shown in FIG. 4. The outlet duct 15 has a cylindrical shape directed in the vertical direction, and the lower end of the outlet duct 15 is connected to the internal space of the water receiving tank 4 at the front end of the water receiving tank 4. As shown in FIG. 5, the filter case 16 has a rectangular tube shape having a front plate, a rear plate, a left side plate, and a right side plate, and the upper end portion of the outlet duct 15 is placed in the inner space of the filter case 16. It is connected with 16 front plates. The division | segmentation upper duct 17 has each of a left side board, a right side board, a top plate, and a rear board, and has comprised the frame shape which each of a front surface and a lower surface opens. The division upper duct 17 is oriented in the front-rear direction, and the front end of the division upper duct 17 is connected to the rear plate of the filter case 16. The division lower duct 18 is fixed to the filter case 16 and the division upper duct 17 so as to be detachable with screws. The divided lower duct 18 closes the lower surface of the filter case 16 and the lower surface of the divided upper duct 17 from below, and the front end of the divided lower duct 18 has a filter case 16 as shown in FIG. A bent portion 19 is formed which is located inside and bends in an L shape. The divided lower duct 18 and the divided upper duct 17 constitute a rectangular tube-shaped filter duct 20 that is directed in the front-rear direction. The inner space of the filter duct 20 is water through the filter case 16 and the outlet duct 15, respectively. It leads to the internal space of the receiving tank 4.

  As shown in FIG. 4, the rear duct 21, the cooler case 22, and the fan casing 23 are accommodated inside the outer box 1. The rear duct 21 has a cylindrical shape directed in the vertical direction, and is fixed to the rear plate of the water receiving tank 4 so as to be located outside the water receiving tank 4. The cooler case 22 has a rectangular tube shape that is directed in the vertical direction, and is fixed to the rear plate of the water receiving tank 4 so as to be located outside the water receiving tank 4. The internal space of the cooler case 22 is connected to the internal space of the rear duct 21 at the lower end portion of the rear duct 21, and the internal space of the rear duct 21 is connected to the internal space of the filter duct 20 at the rear end portion of the filter duct 20. ing. The fan casing 23 has an intake port for sucking air and an exhaust port for discharging air, and the intake port of the fan casing 23 is located at the upper end of the cooler case 22 in the internal space of the cooler case 22. Connected in the department.

  As shown in FIG. 4, each of the heater case 24 and the inlet duct 25 is accommodated in the outer box 1 so as to be located above the water receiving tank 4. The heater case 24 has a rectangular tube shape that is inclined obliquely in the front-rear direction, and the internal space of the heater case 24 is connected to the internal space of the fan casing 23 through the exhaust port of the fan casing 23. The inlet duct 25 has a cylindrical shape that is directed in the vertical direction. The inner space of the inlet duct 25 is connected to the inner space of the heater case 24 at the rear end of the heater case 24, and water is supplied to the inner space of the water receiving tank 4. It is connected at the rear end of the receiving tank 4.

  As shown in FIG. 4, a fan motor 26 is fixed to the fan casing 23 outside the fan casing 23. As shown in FIG. 2, the fan motor 26 has a rotating shaft directed in the vertical direction, and the rotating shaft of the fan motor 26 is inserted into the fan casing 23. A fan 27 is fixed to the rotating shaft of the fan motor 26 so as to be located inside the fan casing 23. When the fan motor 26 is operated with the door 3 closed, the fan 27 rotates in a certain direction. Thus, the air inside the water receiving tank 4 passes through the outlet duct 15 through the filter case 16, the filter duct 20, the rear duct 21, the cooler case 22, the fan casing 23, the heater case 24, and the inlet duct 25 in order. 4 is returned to the inside. That is, the water receiving tank 4, the outlet duct 15, the filter case 16, the filter duct 20, the rear duct 21, the cooler case 22, the fan casing 23, the heater case 24, and the inlet duct 25 are annular with the water receiving tank 4 as a part of the path. The fan motor 26 and the fan 27 correspond to a fan device that circulates the air in the water receiving tank 4 along the air passage.

  As shown in FIG. 2, an electrical heater 28 is accommodated in the heater case 24. The heater case 24 and the heater 28 correspond to heaters, and the heater 28 heats the air circulating along the ventilation path inside the heater case 24 in the respective operation states of the fan motor 26 and the heater 28. That is, when the undried laundry is put in the drum 7, the fan motor 26 and the heater 28 are operated so that the laundry in the drum 7 passes through the plurality of through holes 8 of the drum 7. Hot air is blown, and the hot air removes moisture from the laundry, thereby increasing the humidity of the hot air. The high-humidity warm air enters the cooler case 22 from the outlet duct 15 through the filter case 16, the filter duct 20, and the rear duct 21 in order.

  As shown in FIG. 4, a cylindrical water spout 29 is fixed to the cooler case 22, and one end of the water spout 29 is inserted into the cooler case 22. As shown in FIG. 2, the other end of the water spout 29 is connected to a water faucet via a water sprinkler valve 30. This watering valve 30 is driven by a watering valve solenoid 31 (see FIG. 3), and is closed when the watering valve solenoid 31 is electrically off. The water spray valve 30 is opened when the water spray valve solenoid 31 is electrically turned on. When the water spray valve 30 is opened, tap water is injected into the cooler case 22 from one end of the water spray port 29. .

  As shown in FIG. 4, a drain port 32 is connected to the lowest part of the cooler case 22. The drain port 32 is connected to the drain pipe 12 of the water receiving tank 4 via a hose on the downstream side of the flow of water from the drain valve 13, and the tap water injected into the cooler case 22 from the sprinkler port 29 is The water is discharged from the drain 32 through the drain pipe 12 of the water receiving tank 4. The cooler case 22, the water spray port 29, the water spray valve 30, and the drain port 32 correspond to a cooler, and the water spray valve 30 is opened in the respective operating states of the fan motor 26 and the heater 28. The hot air with high humidity comes into contact with the tap water inside the cooler case 22, and the tap water cools the hot air with high humidity to dehumidify it. The cooling air is heated in the heater case 24 to become warm air, and the low-humidity hot air after dehumidification is blown onto the laundry in the drum 7.

  As shown in FIG. 6, a lint filter device 90 is detachably installed inside the filter case 16, and a filter frame 33 as a component thereof is accommodated. The filter frame 33 has a left side plate, a right side plate, and a top plate, and each of the front surface, the rear surface, and the lower surface is opened. A cover 34 is fixed to the filter frame 33. The cover 34 is disposed above the top plate of the filter frame 33 and corresponds to a cover member. The cover 34 has a horizontal plate shape, and the filter frame 33 is disposed and held at a target position in the vertical direction in the filter case 16 because the cover 34 is supported by the upper end of the filter case 16. The upper surface of 16 is closed when the cover 34 is closed by the cover 34 supported by the upper end of the filter case 16. A plurality of ribs 35 that are directed in the left-right direction are fixed to the filter frame 33. The plurality of ribs 35 are arranged in a line in the vertical direction, and a gap through which air can pass is formed between the ribs 35 adjacent in the vertical direction. Each of the plurality of ribs 35 is interposed between the left side plate and the right side plate of the filter frame 33, and in the operating state of the fan motor 26, air circulates in the ventilation path through the gap between the ribs 35. To do.

  As shown in FIG. 6, a front lint filter 36 is fixed to the filter frame 33. The front lint filter 36 covers each of the lower surface and the rear surface of the filter frame 33 and has a plurality of ventilation holes. Each of the plurality of vent holes allows air to pass but cannot pass lint. When the fan motor 26 is operating, the air in the water receiving tank 4 passes through the vent holes of the front lint filter 36. The front lint filter 36 captures lint in the air as it passes. A rear lint filter 37 is fixed inside the filter duct 20. After this, the lint filter 37 is disposed on the downstream side of the air flow compared to the front lint filter 36 and has a plurality of vent holes. Each of the plurality of vent holes has a smaller area than the vent hole of the front lint filter 36, and when the air in the water receiving tank 4 passes through the vent hole of the rear lint filter 37 in the operation state of the fan motor 26. In addition, the rear lint filter 37 captures a smaller lint than the front lint filter 36. Each of the front lint filter 36 and the rear lint filter 37 corresponds to a filter member.

  As shown in FIG. 1, the top plate of the outer box 1 is formed with a through-hole-like attaching / detaching port 38, and the cover 34 of the filter frame 33 closes the inspection port 40 as shown in FIG. It is supported at the opening edge of the attachment / detachment port 38 in the closed state. As shown in FIG. 1, the cover 34 is formed with a concave handle portion 39 on which the user can hook his / her finger, and the filter frame 33 has a user's finger on the handle portion 39. By pulling up and lifting the cover 34, the filter case 16 is pulled upward through each of the inspection port 40 (see FIG. 5) and the attachment / detachment port 38 of the outer box 1, and the user hooks the finger on the hand-holding portion 39. When the filter frame 33 is inserted into the filter case 16 through the attachment / detachment port 38 of the outer box 1 and the inspection port 40 of the filter case 16, the cover 34 is supported by the opening edge of the attachment / detachment port 38. The frame 33 is returned to the target position in the filter case 16. The inspection port 40 refers to an opening on the upper surface of the filter case 16, and the cover 34 is opened when the cover 34 is pulled out of the outer box 1 together with the filter frame 33. The inspection port 40 has a smaller area than each of the attachment / detachment port 38 and the cover 34, and the user looks into the inside of the filter case 16 through the attachment / detachment port 38 and the inspection port 40 with the cover 34 opened. The adhesion state of foreign matters such as lint to the inner surface of the filter case 16 can be visually inspected. That is, the cover 34 can be operated between the closed state and the open state by the user, and the inspection port 40 is opened when the cover 34 is open and closed when the cover 34 is closed. A reference numeral 90 in FIG. 5 is a lint filter device including a filter frame 33, a cover 34, and a front lint filter 36. The lint filter device 90 is disposed inside the filter case 16 with the attachment / detachment port 38 and the inspection port 40 closed. Removably attached to the.

  A mirror case 41 is fixed to the rear plate of the filter case 16 as shown in FIG. The mirror case 41 has a box shape with an open front surface, and includes a left side plate, a right side plate, a bottom plate, a top plate, and a rear plate. A mirror frame 42 is housed inside the mirror case 41. The mirror frame 42 corresponds to a support member and has a rectangular frame shape in which each of the front surface and the rear surface is opened. A horizontal shaft 43 oriented in the left-right direction is fixed to the upper end portion of the mirror frame 42. The shaft 43 is rotatably supported on each of the left side plate and the right side plate of the mirror case 41, and the mirror frame 42 is inclined in the front-rear direction about the shaft 43. The mirror frame 42 is made non-detachable with respect to the mirror case 41, and a rectangular plate-like mirror 44 is detachably fitted to the inner peripheral surface of the mirror frame 42. The mirror 44 is made of a ferromagnetic material such as iron, and a mirror-like reflection layer is formed on the entire front surface of the mirror 44. The mirror 44 corresponds to a reflecting member.

As shown in FIG. 6, a permanent magnet 45 is fixed to the inner peripheral surface of the mirror frame 42 so as not to be attached and detached. The permanent magnet 45 detachably holds the mirror 44 with respect to the inner peripheral surface of the mirror frame 42 by attracting the mirror 44 with magnetic force. The mirror 44 is attached to the inner peripheral surface of the mirror frame 42 in the following procedure 1). To the outside of the outer box 1 and returned to the inner peripheral surface of the mirror frame 42 from the outside of the outer box 1 in the following procedure 2).
1) The cover 34 of the filter frame 33 is lifted, and the filter frame 33 is pulled out of the outer box 1 through each of the inspection port 40 and the attachment / detachment port 38 to open the attachment / detachment port 38 and the inspection port 40. A finger or a tool is inserted into the filter case 16 from the outside of the outer box 1 through each of the attachment / detachment port 38 and the inspection port 40 in the open state of each of the attachment / detachment port 38 and the inspection port 40, and the mirror 44 is inserted into the filter case 16. The mirror frame 42 is removed from the inner peripheral surface against the magnetic force of the permanent magnet 45. The mirror 42 is pulled out of the outer box 1 through each of the inspection port 40 and the attachment / detachment port 38.
2) The mirror 44 is inserted into the filter case 16 through the attachment / detachment port 38 and the inspection port 40 from the outside of the outer case 1 with the attachment / detachment port 38 and the inspection port 40 opened, and the mirror frame 42 is inserted into the filter case 16. Is held by the magnetic force of the permanent magnet 45. This operation is performed by the user with fingers or tools. The filter frame 33 is inserted into the filter case 16 through the attachment / detachment port 38 and the inspection port 40 with the mirror 44 fitted, and the cover 34 of the filter frame 33 is inserted. Is put on the upper end of the filter case 16 to return the attachment / detachment port 38 and the inspection port 40 to the closed state.

  As shown in FIG. 6, a motor case 46 is fixed in a non-detachable manner inside the mirror case 41, and a mirror motor 47 is fixed inside the motor case 46 as shown in FIG. 7. . The mirror motor 47 is composed of a stepping motor, and has a rotating shaft 48 directed in the left-right direction. A rotor 49 is fixed to the rotating shaft 48 of the mirror motor 47. The rotor 49 has a cylindrical shape directed in the left-right direction, and the axis of the rotation shaft 48 is disposed so as to overlap the axis of the rotor 49. A cam 50 is fixed to the outer periphery of the rotor 49. The cam 50 has a pin shape directed in the left-right direction, and moves in the circumferential direction around the rotation shaft 48 when the mirror motor 47 is in operation.

  As shown in FIG. 7, a cylindrical rod receiver 51 oriented in the front-rear direction is fixed to the front end portion of the motor case 46, and a cylindrical slider 52 is inserted into the inner peripheral surface of the rod receiver 51. ing. The slider 52 linearly moves in the front-rear direction along the inner peripheral surface of the rod receiver 51, and a rod 53 and a spring receiver 54 are fixed to the front end portion of the slider 52. Each of the rod 53 and the spring receiver 54 has a cylindrical shape, and the front end portion of the spring 55 is fitted to the outer peripheral surface of the spring receiver 54.

  As shown in FIG. 7, a plate 56 is fixed inside the motor case 46. A cylindrical spring receiver 57 is fixed to the plate 56, and the rear end portion of the spring 55 is fitted to the inner peripheral surface of the spring receiver 57. The spring 55 is a compression coil spring, and the spring force of the spring 55 is applied to the rod 53 via the slider 52. A driven plate 58 is fixed to the slider 52. The driven plate 58 has a rectangular through hole 59, and a cam 50 is inserted into the through hole 59. The rear vertical one of the inner surfaces of the through hole 59 functions as the cam surface 60. When the rotating shaft 48 of the mirror motor 47 is stationary at the mechanical front limit angle, the cam 50 is It contacts the cam surface 60 at the center of the cam surface 60 in the vertical direction. The front limit angle of the mirror motor 47 is a position where the cam 50 is stationary in front of the rotary shaft 48 on a horizontal line passing through the axis of the rotary shaft 48. The rod 53 is connected to the rod receiver 51 at the front limit angle of the mirror motor 47. The mirror motor 47 stops at the front limit position that protrudes to the maximum from the front end face by the self-holding force (detent torque) of the mirror motor 47.

  As the mechanical rotation angle of the rotating shaft 48 of the mirror motor 47, a storage angle and a rear limit angle are set. As shown in FIG. 8, the retracted angle is an angle obtained by rotating the rotating shaft 48 of the mirror motor 47 by 180 ° from the front limit angle in the positive direction (arrow direction in FIG. 7), and the rotating shaft 48 of the mirror motor 47 is retracted. When it is stationary at an angle, the cam 50 contacts the cam surface 60 at the center in the vertical direction. When the rotating shaft 48 of the mirror motor 47 is stationary at the retracted angle, the cam 50 supports the cam surface 60 from the front against the spring force of the spring 55 by the self-holding force of the mirror motor 47, and the rod 53 Stops at the retracted position retracted to the maximum from the front end surface of the rod receiver 51. The rear limit angle is an angle obtained by rotating the rotation shaft 48 of the mirror motor 47 in the positive direction by θ ° (<180 °) from the front limit angle, and the rotation shaft 48 of the mirror motor 47 is stationary at the rear limit angle. The rod 53 stops at the rear limit position between the front limit position and the retracted position by the self-holding force of the mirror motor 47.

  As shown in FIG. 6, a connecting plate 61 is fixed to the inner peripheral surface of the mirror frame 42. The connecting plate 61 has a long hole 62, and a horizontal cylindrical connecting pin 63 is movably inserted into the long hole 62. The connecting pin 63 is connected to the rod 53. The rod 53 presses the connecting plate 61 forward via the connecting pin 63 at each of the front limit angle and the rear limit angle of the mirror motor 47, whereby the mirror frame 42 is moved. The mirror frame 42 is stationary in the vertical state at the retracted angle of the mirror motor 47 by the spring force of the spring 55. FIG. 6B shows the mirror 44 by the retracted angle of the mirror motor 47. At the retracted angle of the mirror motor 47, the tilt angle of the reflecting surface of the mirror 44 with respect to the vertical line becomes the stored value (0 °).

  FIG. 9A shows the mirror frame 42 at the front limit angle of the mirror motor 47. At the front limit angle of the mirror motor 47, the inclination angle of the reflection surface of the mirror 44 with respect to the vertical line is the front limit value θf ° ( > 0 °). FIG. 9B shows the mirror frame 42 at the rear limit angle of the mirror motor 47. At the rear limit angle of the mirror motor 47, the inclination angle of the reflecting surface of the mirror 44 with respect to the vertical line is the rear limit value θr ° ( <Θf °). Each of the attachment / detachment port 38 of the outer case 1 and the inspection port 40 of the filter case 16 is opened in a state where the inclination angle of the reflecting surface is within the effective range of the rear limit value θr ° or more and the front limit value θf ° or less. In this case, light enters the filter case 16 from the outside of the outer box 1 through the attachment / detachment port 38 and the inspection port 40, and the light that has entered the filter case 16 is filtered from the reflection surface of the mirror 44. By being reflected toward the bent portion 19 of the duct 20, the bent portion 19 of the filter duct 20 is reflected on the reflection surface of the mirror 44. As shown in FIG. 15, the reflecting surface of the mirror 44 allows the user to pass through the inside of the filter case 16 through the attachment / detachment port 38 and the inspection port 40 in a state where the inclination angle is within the effective range of θr ° to θf °. It can be visually recognized when looking obliquely so as to descend from the front to the rear, and the user removes the cover 34 of the filter frame 33 so that the bent portion 19 of the filter duct 20 is reflected by the mirror 44. It can be confirmed visually as an image on the screen.

  The bent portion 19 of the filter duct 20 is a portion where air does not flow at a speed at which lint can be conveyed even when the fan motor 26 is in operation, and the lint that has passed through the front lint filter 36 is present in the bent portion 19. Accumulate. The bent portion 19 is located at the foremost portion in the filter duct 20, and the user looks into the filter case 24 obliquely so as to descend from the front to the rear through the attachment / detachment port 38 and the inspection port 40. In this case, it is visually shielded by obstacles on both the top plate of the outer box 1 and the plurality of ribs 35 of the filter frame 33. The bent portion 19 corresponds to an inspection area in the ventilation path, and the mirror motor 47, the cam 50, the rod receiver 51, the slider 52, the rod 53, the spring 55, the driven plate 58 and the connecting pin 63 are connected to the bent portion 19 of the mirror 44. The mirror motor 47 corresponds to a drive mechanism of the tilt mechanism and a rod motor, respectively.

  As shown in FIG. 1, an operation panel 64 is fixed to the front plate of the outer box 1, and as shown in FIG. 10, the operation panel 64 is centered on an axis on which a dial 65 is directed in the front-rear direction. It is mounted so that it can rotate. The dial 65 can be operated by a user, and a rotary shaft of an encoder 66 (see FIG. 3) is connected to the shaft of the dial 65. This encoder 66 is a rotary type that outputs one A-phase pulse signal each time the dial 65 is rotated by a certain angle in the clockwise direction and in the counterclockwise direction. A B-phase pulse signal that is out of phase with respect to the A-phase pulse signal is output each time the direction and counterclockwise direction are rotated by a certain angle. The dial 65 corresponds to an operator.

  As shown in FIG. 10, a washing switch 67, a rinsing switch 68, a dehydrating switch 69, a drying switch 70, and a start switch 71 are mounted on the operation panel 64. Each of the washing switch 67 to the start switch 71 can be operated by the user, and changes from an electrical OFF state to an ON state when operated by the user. A display 88 is fixed to the operation panel 64. The display 88 is composed of a liquid crystal display, and operation information is displayed on the display 88.

  The main control circuit 72 shown in FIG. 3 is mainly composed of a microcomputer, and has a CPU, a ROM, a RAM, and an EEPROM. The main control circuit 72 is fixed inside the outer case 1 and determines whether or not each of the washing switch 67 to the start switch 71 has been operated based on whether or not the state has changed from the off state to the on state. The main control circuit 72 measures the number of A-phase pulse signals output from the encoder 66, and detects a phase shift between the A-phase pulse signal and the B-phase pulse signal output from the encoder 66. Accordingly, it is determined whether the operation direction of the dial 65 is the clockwise direction or the counterclockwise direction. The main control circuit 72 corresponds to each of an inclination angle setting unit and an inclination angle adjustment unit.

  3 outputs a water level signal having a magnitude corresponding to the height of the water level in the water receiving tank 4, and the CPU of the main control circuit 72 determines the water level in the water receiving tank 4 from the magnitude of the water level signal. Detect the height of. The inlet temperature sensor 74 is fixed in the inlet duct 25. The inlet temperature sensor 74 outputs a temperature signal having a magnitude corresponding to the temperature of the hot air injected into the water receiving tank 4 from the heater 28, and the CPU of the main control circuit 72 is output from the inlet temperature sensor 74. The inlet temperature which is the temperature of the warm air before being blown to the laundry in the drum 7 is detected based on the temperature signal. The outlet temperature sensor 75 is fixed in the outlet duct 15. The outlet temperature sensor 75 outputs a temperature signal having a magnitude corresponding to the temperature of the warm air returned from the drum 7 into the outlet duct 15. The CPU of the main control circuit 72 is output from the outlet temperature sensor 75. The outlet temperature, which is the temperature of the hot air after being blown onto the laundry in the drum 7, is detected based on the temperature signal.

  The LCD drive circuit 76 in FIG. 3 applies drive power to the display 88, and the CPU of the main control circuit 72 displays operation information on the display 88 by electrically controlling the LCD drive circuit 76. The solenoid drive circuit 77 applies drive power to the water supply valve solenoid 11, and the CPU of the main control circuit 72 opens and closes the water supply valve 10 by electrically controlling the solenoid drive circuit 77. The motor drive circuit 78 applies drive power to the drain valve motor 14, and the CPU of the main control circuit 72 opens and closes the drain valve 13 by electrically controlling the motor drive circuit 78. The motor drive circuit 79 applies drive power to the fan motor 26, and the CPU of the main control circuit 72 electrically controls the motor drive circuit 79 to electrically turn the fan motor 26 on and off, thereby turning off the fan 27. Operate between a running state rotating in a certain direction and a stationary running stop state. The heater drive circuit 80 applies drive power to the heater 28, and the CPU of the main control circuit 72 performs on / off operation of the heater 28 by electrically controlling the heater drive circuit 80. The solenoid drive circuit 81 applies drive power to the water spray solenoid 31, and the CPU of the main control circuit 72 opens and closes the water spray valve 30 by electrically controlling the solenoid drive circuit 81. The motor drive circuit 82 applies drive power to the mirror motor 47, and the CPU of the main control circuit 72 adjusts the tilt angle of the mirror 44 by electrically controlling the motor drive circuit 82.

  The inverter control circuit 83 in FIG. 3 is mainly composed of a microcomputer, and has a CPU, a ROM, and a RAM. The speed sensor 84 is a Hall IC fixed to the stator of the drum motor 5. The speed sensor 84 changes its electrical state when a magnetic field acts from the rotor magnet of the drum motor 5, and the inverter control circuit 83 changes how much the electrical state of the speed sensor 84 changes per unit time. The rotation speed of the drum motor 5 is detected by measuring whether or not it has been performed. The inverter circuit 85 generates drive power for the drum motor 5 by converting DC power into AC power. The inverter control circuit 83 calculates the deviation between the target speed setting result and the rotational speed measurement result. The drum motor 5 is rotated by the target speed setting result by electrically controlling the inverter circuit 85 according to the deviation calculation result.

  As shown in FIG. 10, an on switch 86 and an off switch 87 are mounted on the operation panel 64. Each of the on switch 86 and the off switch 87 can be operated by the user, and is turned on when the operating force is applied, and self-returns to the off state when the operating force disappears. The on switch 86 is interposed in a power supply path for supplying commercial AC power to the power supply board. When the on switch 86 is on, commercial AC power is supplied to the power board through the on switch 86. This power supply board generates drive power for all the electrical components in FIG. 3 including the main control circuit 72 based on the commercial AC power supply. The main control circuit 72 is operated by turning on the on switch 86. Start and switch the power relay from off to on. This power supply relay is interposed in parallel with the input switch 86 in the power supply path of the power supply board. When the power supply relay is turned on when the input switch 86 is turned off, the commercial AC power is supplied through the power supply relay. Supplied to the substrate. This power supply relay is switched from the on state to the off state when the main control circuit 72 determines the end of the driving course and when the turn-off switch 87 is determined to be on. Is switched from the on state to the off state, the commercial AC power supply is cut off, and the main control circuit 72 is brought into an electrical stop state.

  FIG. 11 shows an operation control program recorded in advance in the ROM of the main control circuit 72. When the CPU of the main control circuit 72 is activated by turning on the on switch 86, the power relay is turned on in step S1. Switching from the off state to the on state and setting the prohibition of interrupt in step S2 prohibits the start of timer interrupt processing. Then, the RAM is initialized by the initialization process in step S3, and the operation course is initialized to the standard washing course in step S4. Next, in step S5, an initial value (0) recorded in advance in the ROM is set for each of the timer T1 value and the timer T2 value in the RAM, and in step S6, the timer prohibition process is canceled by canceling the interrupt prohibition setting. Allow to start.

  FIG. 12 shows timer interrupt processing. This timer interrupt process is started every time a predetermined time (0.1 second) elapses, and the CPU of the main control circuit 72 records the value of the timer T1 of the RAM in the ROM in step S31. The upper limit (10.0) is compared. If it is determined that the value of the timer T1 has not reached the upper limit value, the process proceeds to step S32, and a constant value (0.1) is added to the value of the timer T1.

  When the CPU of the main control circuit 72 proceeds to step S33, it compares the value of the timer T2 of the RAM with the upper limit value (3.0) recorded in advance in the ROM. If it is determined that the value of the timer T2 has not reached the upper limit value, the process proceeds to step S34, and a constant value (0.1) is added to the value of the timer T2. That is, each of the value of timer T1 and the value of timer T2 is added from zero to the upper limit value, and is not added when added to the upper limit value.

  When the CPU of the main control circuit 72 cancels the interrupt prohibition setting in step S6 of FIG. 11, it determines in step S7 whether or not each of the washing switch 67 and the dehydration switch 69 is in an ON state. Here, when it is determined that the washing switch 67 is in the OFF state, when it is determined that the dehydration switch 69 is in the OFF state, and when it is determined that both the washing switch 67 and the dehydration switch 69 are in the OFF state, respectively. The process proceeds to step S8, and it is determined whether or not the value of the flag F1 of the RAM is set to the on state (1). The value of the flag F1 indicates whether or not the washing switch 67 and the dehydrating switch 67 are simultaneously operated, and is initially set to the off state (0) in step S3.

  When the CPU of the main control circuit 72 determines in step S8 that the value of the flag F1 in the RAM is set to the off state, the CPU shifts to the driving course setting process in step S10. In this operation course setting process, the rotation direction of the dial 65 is determined in response to detection of the pulse signal from the encoder 66, and when the rotation direction of the dial 65 is determined to be clockwise, the counter N1 of the RAM is checked. When a constant value is added to the value and it is determined that the rotation direction of the dial 65 is counterclockwise, the constant value is subtracted from the value of the RAM counter N1, and the CPU adds the value of the counter N1. In each of the cases where the operation is performed and subtracted, one operation course corresponding to the update result of the value of the counter N1 is selected from a plurality of operation courses recorded in advance in the ROM, and the current setting result of the operation course is selected. Change to result.

  When the CPU of the main control circuit 72 finishes the driving course setting process in step S10, the CPU proceeds to the driving information setting process in step S11. This operation information setting process determines whether or not each of the washing switch 67, the rinsing switch 68, the dehydrating switch 69, and the drying switch 70 is in an ON state, and the CPU determines that the washing switch 67 is in an ON state. In the case where the washing course is set, the washing process contents are set according to the washing switch 67 and the rinsing switch 68 is turned on. When the processing content of the rinsing process is set according to the operation content of the rinsing switch 68 and it is determined that the dehydration switch 69 is in the ON state, the processing content of the dehydration processing in the operation course setting result is operated Set according to the contents, and when it is determined that the drying switch 70 is in the ON state, the contents of the drying process in the setting result of the driving course Set according to the operation content of the dry switch 70. Each operation of the washing switch 67 to the drying switch 70 is referred to as a standard operation.

  When the CPU of the main control circuit 72 finishes the operation information setting process in step S11, it determines in step S12 whether or not the start switch 71 is on. If it is determined that the start switch 71 is not in the ON state, the process proceeds to step S13 to determine whether or not the value of the timer T1 in the RAM has reached the upper limit value. If it is determined that the value of the timer T1 has not reached the upper limit value, the process returns to step S7. If it is determined that the value of the timer T1 has reached the upper limit value, the process returns to step S10. That is, whether or not the washing switch 67 and the dehydration switch 69 are operated at the same time is determined until a certain time corresponding to the upper limit value of the timer T1 elapses after the power is turned on. When the washing switch 67 and the dehydration switch 69 are simultaneously operated after a certain time has passed since the power is turned on, the simultaneous operation of the washing switch 67 and the dehydration switch 69 is invalidated.

  If the CPU of the main control circuit 72 determines that the start switch 71 is in the ON state in step S12, it detects the value of the counter N2 from the EEPROM in step S14. The value of the EEPROM counter N2 corresponds to the current tilt angle of the mirror 44. When the current tilt angle of the mirror 44 is the pre-limit value, the upper limit value (10) is obtained. When the tilt angle is the rear limit value, the lower limit value is −10, and when the current tilt angle of the mirror 44 is the stored value (0 °), the lower limit value is −15. Become.

  When the CPU of the main control circuit 72 detects the value of the counter N2 from the EEPROM in step S14, it sets a drive signal in step S15. This drive signal is set by subtracting the detection result of the value of the counter N2 from the invalid value, and when the CPU sets the drive signal in step S15, the drive signal setting result is motor-driven in step S16. By outputting to the circuit 82, the rotating shaft 48 of the mirror motor 47 is operated in the direction of the arrow in FIG. 7, and the tilt angle of the mirror 44 is changed from the current value to the stored value (0 °).

  When the CPU of the main control circuit 72 changes the tilt angle of the mirror 44 to the stored value in step S16 in FIG. 11, the CPU shifts to the driving course execution process in step S17. The operation course execution process is performed by electrically controlling each of the drum motor 5, the water supply valve solenoid 11, the drain valve motor 14, the fan motor 26, and the water spray valve solenoid 31 to determine the laundry amount determination process, the washing process, the rinsing process, and the dehydration process. The process and the drying process are performed in this order. When the CPU starts the drying process, the value of the flag F2 in the RAM is changed from the off state (0) to the on state (1), and the drying process is completed. In this case, the value of the flag F2 in the RAM is changed from the on state to the off state (1).

  The laundry amount determination process is started when the CPU of the main control circuit 72 transmits a sensing command to the inverter control circuit 83. When the CPU of the inverter control circuit 83 receives the sensing command, the drum motor 5 is turned on. The operation is started with a constant acceleration pattern, and the rotation speed of the drum motor 5 is detected while the drum motor 5 is operated with the acceleration pattern. The time required until the detection result of the rotational speed of the drum motor 5 reaches a certain value is detected, and the detection result of the required time is transmitted to the main control circuit 72. When the CPU of the main control circuit 72 receives the transmission result of the required time, it compares the reception result of the required time with each of a plurality of threshold values recorded in advance in the ROM, and determines the weight of the laundry in the drum 7 as required. The determination is made in stages according to the comparison result with respect to the threshold of time.

  In the washing process, tap water at a water level corresponding to the result of determination of the amount of laundry is stored in the water receiving tank 4, and the laundry in the drum 7 is agitated by operating the drum motor 5 in the storage state of tap water. . This washing process is performed in a state where a detergent is added, and the laundry in the drum 7 is stirred in tap water containing the detergent. This washing process is performed in accordance with the setting result of the processing content corresponding to the operation content of the washing switch 67 when the processing content of the washing process 67 is set according to the operation content of the washing switch 67 in step S11. When the processing content of the washing process is not set according to the operation content of the washing switch 67, the processing content is determined according to the laundry amount determination result and the driving course setting result.

  The rinsing process is to stir the laundry in the drum 7 by storing tap water at a water level corresponding to the result of determination of the amount of laundry in the water receiving tank 4 and operating the drum motor 5 in a stored state of tap water. . This rinsing process is performed in a state in which no detergent is added, and the laundry in the drum 7 is stirred in tap water that does not contain detergent. This rinsing process is performed in step S11 when the processing contents of the rinsing process are set according to the operation contents of the rinsing switch 68, with the setting result of the processing contents corresponding to the operation contents of the rinsing switch 68, When the processing content of the rinsing process is not set according to the operation content of the rinsing switch 68, the processing content is determined according to the laundry amount determination result and the driving course setting result.

  In the dehydration process, the drum motor 5 is operated to release moisture from the laundry in the drum 7 by centrifugal force. This dehydration process is performed based on the setting result of the process content corresponding to the operation content of the dehydration switch 69 when the process content of the dehydration process is set according to the operation content of the dehydration switch 69 in step S11. When the processing content of the dehydration process is not set according to the operation content of the dehydration switch 69, the processing content is determined according to the laundry amount determination result and the operation course setting result.

  In the drying process, the laundry in the drum 7 is dried with warm air by operating each of the fan motor 26 and the heater 28 with the water spray valve 30 opened. This drying process is performed based on the setting result of the process content corresponding to the operation content of the drying switch 70 when the process content of the drying process is set according to the operation content of the drying switch 70 in step S11. When the processing content of the drying process is not set according to the operation content of the drying switch 70, the processing content is determined according to the laundry amount determination result and the driving course setting result. In this drying process, the CPU of the main control circuit 72 detects the inlet temperature according to the temperature signal from the inlet temperature sensor 74, detects the outlet temperature according to the temperature signal from the outlet temperature sensor 75, and detects the inlet temperature. Is controlled to turn on and off the heater 28 so as to converge to a constant target temperature. In this drying process, the CPU of the main control circuit 72 calculates the drying rate “100 × (inlet temperature detection result / outlet temperature detection result)” and determines that the drying rate calculation result has reached the target value. Finish the drying process.

  When the CPU of the main control circuit 72 finishes the operation course execution process in step S17, the CPU proceeds to the inclination angle restoration process in step S18. In this inclination angle restoration process, the inclination angle of the mirror 44 is returned from an invalid value to a value corresponding to the value of the EEPROM counter N2, and the CPU detects the value of the EEPROM counter N2 in step S18. The invalid value is subtracted from the detection result of the value of the counter N2, and the drive signal is set according to the subtraction result of the value of the counter N2. By driving the mirror motor 47 with this drive signal setting result, the rotation shaft 48 of the mirror motor 47 is rotated in the direction of the opposite arrow in FIG. 8, and the tilt angle of the mirror 44 is changed from an invalid value to the value of the EEPROM counter N2. Return to the corresponding value.

  When the CPU of the main control circuit 72 finishes the inclination angle restoration process in step S18, the power supply relay is turned off in step S19 to cut off the power. In this power-off state, the mirror 44 stops at an inclination angle corresponding to the value of the EEPROM counter N2 by the self-holding force of the mirror motor 47. Accordingly, the user removes the cover 34 of the filter frame 33 from the attachment / detachment opening 38 of the outer box 1 to open each of the attachment / detachment opening 38 and the inspection opening 40, and mirrors the adhesion state of foreign matter to the bent portion 19 of the filter duct 20. 44, and when it is confirmed that foreign matter is attached to the bent portion 19 of the filter duct 20, the bent portion 19 of the filter duct 20 is cleaned through the attachment port 38 and the inspection port 40, respectively. Can do. Further, the user can open the attachment / detachment opening 38 and the inspection opening 40 when necessary, and remove the mirror 44 from the mirror frame 42 through each of the attachment / detachment opening 38 and the inspection opening 40 to clean the reflection surface of the mirror 44. .

  When the CPU of the main control circuit 72 determines that each of the washing switch 67 and the dehydration switch 69 is in the on state in step S7, it determines whether or not the value of the flag F1 in the RAM is set to the off state in step S20. . If it is determined that the value of the flag F1 is set to the OFF state, the initial value (0) is set to the value of the timer T2 of the RAM in step S21, and the value of the flag F1 of the RAM is turned on in step S22. The state is set, and the process returns to step S7. If it is determined again that each of the washing switch 67 and the dehydration switch 69 is in the on state, it is determined in step S20 that the value of the flag F1 in the RAM is set in the on state, and the process proceeds to step S23.

  When the CPU of the main control circuit 72 proceeds to step S23, it compares the value of the timer T2 of the RAM with the upper limit value. If it is determined that the value of the timer T2 has not reached the upper limit value, the process returns to step S7. For example, when the user removes the operating force from the washing switch 67 before the limit time (3.0 seconds) has elapsed since the user started operating the washing switch 67 and the dehydrating switch 68 at the same time, and from the dehydrating switch 69. When the operation force is removed and when the operation force is removed from both the washing switch 67 and the dehydration switch 69, the CPU proceeds from step S7 to step S8, and the value of the flag F1 in the RAM is set to the on state. Judge that In this case, the value of the flag F1 is set to the OFF state in step S9, and the process proceeds to the driving course setting process in step S10.

  When the CPU of the main control circuit 72 determines that the value of the RAM timer T2 has reached the upper limit value in step S23, it determines whether or not the value of the RAM timer T1 has reached the upper limit value in step S24. . If it is determined that the value of the timer T1 has reached the upper limit value, the process proceeds to the driving course setting process in step S10, and steps S10 to S10 are performed until it is determined in step S12 that the start switch 71 is on. Repeat step S13.

  When the CPU of the main control circuit 72 determines in step S24 that the value of the timer T1 in the RAM has not reached the upper limit value, the CPU proceeds to the tilt angle adjustment process in step S25. That is, the inclination angle adjustment processing is continued for a fixed second time (<first time) in each of the washing switch 67 and the dehydration switch 69 within a fixed first time after the user turns on the power. This is started when simultaneous operation is performed.

  FIG. 13 shows an inclination angle adjustment process. The CPU of the main control circuit 72 detects the value of the counter N2 from the EEPROM in step S41, and records the detection result of the value of the counter N2 in the RAM. The value of the EEPROM counter N2 is an intermediate standard value between the front limit value (10) and the rear limit value (−10) in the factory shipment state in which the user has not adjusted the tilt angle of the mirror 44 even once. In the factory shipment stage, the mirror 44 is stationary at an intermediate standard angle between the front limit angle θf ° and the rear limit angle θr ° in the power-off state.

  The CPU of the main control circuit 72 records the detection result of the value of the counter N2 in the RAM in step S41, and calculates the tilt angle of the mirror 44 in accordance with the recording result of the value of the counter N2 in RAM in step S42. In step S43, the calculation result of the tilt angle is displayed as a numerical value on the display 88. In step S44, it is determined whether or not there is a pulse signal from the encoder 66. If it is determined that there is a pulse signal from the encoder 66, the process proceeds to step S45, and it is determined whether or not the dial 66 is rotated clockwise.

  When the CPU of the main control circuit 72 determines that the dial 65 is rotated clockwise in step S45, it determines whether or not the value of the counter N2 of the RAM has reached the upper limit value (10) in step S46. This upper limit value is recorded in advance in the ROM, and when the CPU determines in step S46 that the value of the RAM counter N2 has not reached the upper limit value, the CPU keeps the value of the RAM counter N2 constant in step S47. Add the value (1).

  When the CPU of the main control circuit 72 adds the value of the RAM counter N2 in step S47, a drive signal is set in step S48, and the mirror motor 47 is rotated based on the drive signal setting result in step S52. This drive signal is for rotating the rotating shaft 48 of the mirror motor 47 in the direction of the opposite arrow in FIG. 8 by a certain unit angle. By rotating the unit by the unit angle in the direction opposite to the arrow, the unit value increases from the current value toward the previous limit value. That is, the mirror motor 47 is activated by a special operation in which the user simultaneously operates the washing switch 67 and the dehydrating switch 69, and the user turns the dial 66 clockwise while the mirror motor 47 is activated. When the rotary operation is performed, the tilt angle of the mirror 44 increases from the current value toward the previous limit value by a value corresponding to the operation amount of the dial 65.

  When the CPU of the main control circuit 72 determines in step S46 that the value of the RAM counter N2 has reached the upper limit value, the error message “The mirror cannot be operated” is displayed on the display 88 in step S58. . That is, when the tilt angle of the mirror 44 has reached the front limit value, the tilt angle of the mirror 44 does not change toward the front limit value even if the user rotates the dial 65 clockwise. 65 operation is invalidated.

  When the CPU of the main control circuit 72 determines that the dial 65 has been rotated counterclockwise in step S45, it determines whether or not the value of the RAM counter N2 has reached the lower limit (−10) in step S49. To do. This lower limit value is recorded in advance in the ROM, and when the CPU determines that the value of the RAM counter N2 has not reached the lower limit value in step S49, the lower limit value is constant from the value of the RAM counter N2 in step S50. Subtract the value (1). In step S51, a drive signal for the mirror motor 47 is set. In step S52, the mirror motor 47 is rotated based on the drive signal setting result. This drive signal is for rotating the rotation axis of the mirror motor 47 in the direction of the arrow in FIG. 7 by a certain unit angle, and the tilt angle of the mirror 44 is that the mirror motor 47 is rotated by the drive signal setting result The unit value decreases from the current value toward the rear limit value. That is, when the user rotates the dial 66 counterclockwise while the mirror motor 47 is in an effective state, the inclination angle of the mirror 44 is a value corresponding to the operation amount of the dial 65 from the current value toward the rear limit value. Only smaller.

  When the CPU of the main control circuit 72 determines in step S49 that the value of the RAM counter N2 has reached the lower limit value, an error message “The mirror cannot be operated” is displayed on the display 88 in step S58. . That is, when the tilt angle of the mirror 44 has reached the rear limit value, the tilt angle of the mirror 44 does not change toward the rear limit value even if the user rotates the dial 65 counterclockwise.

  When the CPU of the main control circuit 72 tilts the mirror 44 in step S52, the current tilt angle of the mirror 44 is calculated according to the update result of the value of the counter N2 in RAM in step S53. In step S54, the display value of the current tilt angle of the display 88 is changed to the calculation result, and in step S55, it is determined whether or not the start switch 71 is in the ON state. If it is determined that the start switch 71 is in the ON state, the update result of the RAM counter N2 is overwritten on the value of the EEPROM counter N2 in step S56, and the power relay is switched from the ON state to the OFF state in step S57. Switch to.

  The tilt angle adjustment process ends when the user operates the start switch 71. When the tilt angle adjustment process ends, the power supply relay is turned off to cut off the power. In this power-off state, the updated result of the counter N2 value is backed up in the EEPROM, and the mirror 44 is stationary by the self-holding force of the mirror motor 47 at an inclination angle corresponding to the backup result of the counter N2 value. Accordingly, the user can confirm the state of foreign matter adhering to the bent portion 19 of the filter duct 20 with the mirror 44 through each of the attachment / detachment port 38 and the inspection port 40.

  The pause interruption process in FIG. 14 is performed during the washing process from the start to the end of the washing process, the rinse process from the start to the end of the rinse process, and the dehydration process from the start to the end of the dehydration process. The CPU of the main control circuit 72 is activated when the start switch 71 is turned on during the processing and during the drying process from the start to the end of the drying process. It is determined whether or not the drying process is being performed depending on whether or not the value of F2 is set to the on state. Here, if the value of the flag F2 in the RAM is set to the off state, it is determined that the drying process is not being performed, and the process proceeds to the inclination angle restoration process in step S62. This tilt angle restoration process is to make the tilt angle of the mirror 44 tilt from an invalid value to a value corresponding to the value of the EEPROM counter N2 in the same process as step S18 in FIG. 11, and the CPU restores the tilt angle in step S62. When the process is completed and when it is determined that the drying process is being performed in step S61, the setting result of the driving course is temporarily stopped in step S63. This process refers to temporarily turning off the actuator according to the progress state of the driving course, and the drum motor 5 is temporarily turned off during the washing process, the rinsing process, and the dehydrating process. During the drying process, each of the fan motor 26, the heater 28, and the water spray solenoid 31 is temporarily turned off.

  When the user pauses the washing process by operating the start switch 71 during the washing process and when the user operates the start switch 71 during the rinsing process, and when the rinse process is paused and starts during the dehydration process. When the dehydration process is temporarily stopped by operating the switch 71, the tilt angle of the mirror 44 is changed from an invalid value to a value corresponding to the value of the EEPROM counter N2. Therefore, the user can confirm the adhesion state of the foreign matter to the bent portion 19 of the filter duct 20 with the mirror 44. When the user temporarily stops the drying process by operating the start switch 71 during the drying process, the tilt angle of the mirror 44 remains an invalid value. Therefore, the user cannot confirm the adhesion state of the foreign matter on the bent portion 19 of the filter duct 20 with the mirror 44.

  When the CPU of the main control circuit 72 pauses the setting result of the driving course in step S63, it determines whether or not the start switch 71 is in the on state in step S64. If it is determined that the start switch 71 is in the on state, the process proceeds to step S65, and whether or not the drying process is being performed is determined depending on whether or not the value of the flag F2 of the RAM is set to the on state. to decide. If it is determined that the drying process is not in progress, the process proceeds to the mirror storing process in step S66, and the inclination angle of the mirror 44 is a value corresponding to the value of the EEPROM counter N2 in the same process as in steps S14 to S16 in FIG. Change from to invalid value.

  The CPU of the main control circuit 72 proceeds to step S67 when the mirror storing process of step S66 in FIG. 14 is completed and when it is determined that the drying process is being performed at step S65, and during the washing process and the rinsing process. During the dehydration process, the drum motor 5 is returned to the ON state immediately before the temporary stop to release the temporary stop. During the drying process, the fan motor 26, the heater 28, and the water spray valve solenoid 31 are immediately stopped. Release the pause by returning to the ON state.

According to the said Example 1, there exists the following effect.
The mirror 44 was arranged in the filter case 16 so that the user could visually recognize the reflecting surface of the mirror 44 by looking into the inspection port 40 from the outside of the outer box 1 with the cover 34 opened. In the open state of the cover 34, the reflection surface of the mirror 44 reflects light from the outside of the outer box 1 through the inspection port 40 to the bent portion 19 of the filter duct 20. For this reason, since the user can recognize visually the adhesion state of the foreign material with respect to the bending part 19 via the reflective surface of the mirror 44, the troublesomeness which adjusts the position of a line of sight reduces.

  The mirror 44 is detachably attached to the mirror frame 42 by a permanent magnet 45. Therefore, the user can easily remove the mirror 44 from the mirror frame 42 and clean it when necessary, and return the mirror 44 to the mirror frame 42 after cleaning. In addition, since the mirror 44 is attached to the mirror frame 42 with the permanent magnet 45, the mirror 44 falls off the mirror frame 42 due to vibration during the washing process, vibration during the rinsing process, and vibration during the dehydration process. Can be prevented.

  When the dial 65 is rotated clockwise, the tilt angle of the mirror 44 is increased toward the front limit value according to the rotation amount of the dial 65, and the dial 65 is rotated counterclockwise. Since the tilt angle of the mirror 44 is reduced toward the rear limit value in accordance with the rotation amount of the dial 65, the user rotates the dial 65 in the clockwise direction and the counterclockwise direction according to his / her height. By adjusting each of the rotation amounts, the tilt angle of the mirror 44 can be adjusted so that the reflection surface of the mirror 44 is easy to see. Moreover, the user can check the adhesion state of the foreign matter over a wide area including the bent portion 19 by checking the mirror 44 while rotating the dial 65 in the clockwise direction and the counterclockwise direction.

  In each of the washing process, the rinsing process, and the dehydrating process, the mirror 44 was stored so that the tilt angle became an invalid value (0 °) regardless of the value of the counter N2 of the EEPROM. In the retracted state of the mirror 44, the rod 53 of the mirror motor 47 is stopped in a state where it is retracted to the maximum extent toward the rod receiver 51 of the motor case 46, and therefore the rod receiver 51 is adversely affected by vibration during rotation of the drum 7. Can be prevented. Moreover, since each of the mirror frame 42 and the mirror 44 is set in the vertical state in the retracted state of the mirror 44, each of the mirror frame 42 and the mirror 44 is vibrated from the tilted state toward the vertical state by vibration during rotation of the drum 7. Can also be prevented.

  The mirror 44 was stopped at an inclination angle corresponding to the value of the EEPROM counter N2 in a power-off state. For this reason, when the user checks the adhesion state of the foreign matter to the bent portion 19 of the filter duct 20, the operation of turning on the power by operating the on switch 86 and the tilt angle of the mirror 44 by operating the dial 65. Since there is no need for adjustment, it is possible to easily confirm the state of foreign matter adhering to the bent portion 19 of the filter duct 20 when the power is cut off.

In the first embodiment, the tilt mechanism for adjusting the tilt angle of the mirror 44 may be eliminated, and the mirror 44 may be fixed to a constant tilt angle within the range of the front limit value and the rear limit value.
In the first embodiment, a refrigeration cycle condenser may be used as the heater, and a refrigeration cycle evaporator may be used as the cooler.

  In the said Example 1, you may apply this invention to the washing-drying machine which stirs a laundry with a water flow.

  4 is a water receiving tub, 7 is a drum (washing tub), 8 is a through hole, 19 is a bent portion (inspection area), 34 is a cover (cover member), 40 is an inspection port, 42 is a mirror frame (support member), 44 Is a mirror (reflective member), 45 is a permanent magnet, 47 is a mirror motor (drive source, rod motor), 51 is a rod receiver, 53 is a rod, 65 is a dial (operator), 72 is a main control circuit (inclination angle setting) Means, inclination angle adjusting means).

Claims (5)

A water receiving tank for receiving water,
A washing tub provided inside the water receiving tub, into which laundry is put, and having a plurality of through holes through which water in the water receiving tub can circulate,
An annular passage having the water receiving tank as a part of the path, and a ventilation path through which air can circulate;
A fan device for circulating air in the water receiving tank along the ventilation path;
A heater for heating the air circulating along the ventilation path;
A cooler that cools air circulating along the ventilation path upstream of the air flow compared to the heater;
An inspection port for a user to visually inspect the inside of the ventilation path from the outside of the ventilation path;
A cover member that can be operated by a user between a closed state in which the inspection port is closed and an open state in which the inspection port is opened;
A reflective member having a reflective surface for reflecting light from the outside of the ventilation path through the inspection port to a predetermined inspection area inside the ventilation path in the open state of the cover member;
Washing and drying, wherein the reflecting member is arranged so that a user can visually recognize the reflecting surface by looking into the inspection port from the outside of the ventilation path when the cover member is opened. Machine. With permanent magnets,
Provided inside the ventilation path so as not to be detachable, and comprising a supporting member that supports each of the reflecting member and the permanent magnet,
The washing / drying machine according to claim 1, wherein the reflection member is made of a magnetic material that can be attracted to the permanent magnet by a magnetic attraction force. An inclination mechanism for adjusting an inclination angle of the reflecting member with respect to the inspection area, and having an electric drive source;
An operator for adjusting the tilt angle that can be operated by the user;
An inclination angle setting means for setting an inclination angle of the reflecting member with respect to the inspection area according to the operation content of the operation element;
Inclination angle adjusting means for adjusting the inclination angle of the reflecting member with respect to the inspection region according to the operation content of the operator by electrically controlling the drive source according to the setting result of the inclination angle setting means. The washing / drying machine according to any one of claims 1 and 2. The tilt mechanism includes a rod connected to the reflecting member, a rod receiver that supports the rod so as to be linearly movable, and a movement operation of the rod along the rod receiver to thereby adjust the inspection area of the reflecting member. It has a rod motor as a drive source for adjusting the tilt angle,
The inclination angle adjusting means adjusts the inclination angle of the reflecting member with respect to the inspection region via the rod by controlling the driving of the rod motor according to the setting result of the inclination angle setting means, During the dehydration process in which moisture is released from the laundry in the washing tub by centrifugal force, the rod is made to rest in a state where the rod is retracted to the maximum on the rod receiving side regardless of the setting result of the inclination angle setting means. The washing / drying machine according to claim 3.   5. The reflection member according to claim 3, wherein the reflection member is stationary at an inclination angle corresponding to a setting result of the inclination angle setting unit when the driving source is electrically turned off. Washing and drying machine.

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