JP2007167391A - Drum-type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a leak of steam during dehydration caused by insufficient water seal when the outer tub vibrates during spin-drying or the like, which is caused by discharging of accumulated water due to vibration of a water-seal trap provided in a water supply passage connecting an outer tub and a water-pouring port part having a detergent container. <P>SOLUTION: The water-seal trap 50 is fixed to the water-pouring port part 23 fixed to a case. A bellows-like connecting pipe 24a formed of an elastomer such as rubber is interposed in a water pouring pipe 24 connecting the water-seal trap 50 and the outer tub 10. Thereby, when the outer tub 10 vibrates, the vibration is absorbed by elasticity/flexibility of the connecting pipe 24a so as to prevent large vibration of the water-seal trap 50 itself. As a result, sufficient water seal is achieved by water accumulated in the water-seal trap 50 during water supplying in final rinsing so as to prevent a leak of steam by inhibiting flow of the steam from the outer tub 10 to the water-pouring port part 23. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drum type washing machine including a drum that rotates about a horizontal axis or an inclined axis.

  In general, a drum-type washing machine has a configuration in which a cylindrical drum with a circumferential surface is rotatably arranged around a horizontal axis or an inclined axis inside an outer tub disposed in a substantially box-shaped casing. The laundry is housed in the drum, and the laundry is washed by rotating the drum with water stored in the outer tub. Also, in a drum type washing machine having a drying function, when washing is completed, the laundry can be dried by feeding heated air into the outer tub while slowly rotating the drum. Yes. In many of these drum type washing machines, a clothing input port for putting clothes into and out of the drum is provided on the front surface of the housing, and a door for opening and closing the clothing input port is provided on the housing. When the door is opened, the inside of the drum is viewed through an opening formed on the front surface of the outer tub and an opening provided on the front end surface of the drum.

  In the drum type washing machine having the above-described configuration, a water filling port for storing a detergent container capable of storing a detergent, a soft finish, and the like is provided in the upper space of the outer tub and supplied from an external water tap or the like. A water supply path is provided so that water is supplied into the outer tank through the water injection port. Thus, for example, when a user puts a powder detergent in a predetermined position in the detergent container in advance, the tap water introduced into the water inlet is supplied into the detergent container when the washing water is supplied, and the detergent is washed away by this water. By supplying water with the detergent into the outer tub, the detergent is automatically introduced into the outer tub. In addition, if a soft finish is put in another predetermined position in the detergent container, the soft finish is washed away by the water introduced into the water inlet at the time of final rinsing and supplied into the outer tub. It has become.

  As described above, since the outer tub and the water inlet are connected by a water supply path, when air containing a large amount of water vapor discharged from the laundry during drying fills the outer tub, a part of such water vapor is The water supply path can be reversed to reach the water inlet. In such a situation, there is a problem that water vapor leaks out of the machine from the gap of the storage part of the detergent container, or water condensed on the wall surface of the detergent container drops when the detergent container is pulled out.

  In order to solve such a problem, in the conventional drum type washing machine, a water seal trap is provided in the middle of the water supply path connecting the water injection port and the outer tub, so that water vapor reaches the water injection port during the drying operation. To prevent that. For example, in the drum type washing machine described in Patent Document 1, a rubber seal is bent into a U shape to form a water seal trap so that water remains in the U shape when water supply is stopped. ing. Here, the reason why the pipe is formed from an elastic member such as rubber is that the outer tub to which the water supply path is connected swings greatly as the drum vibrates, whereas the water inlet is fixed. This is because the water supply path receives the force of expansion and contraction and bending.

  However, in the above conventional configuration, when the drum is rotated at high speed during dehydration, and the outer tub swings greatly, the water seal trap itself expands and contracts or bends. Therefore, the water stored in the water seal trap May be exhausted and a complete water seal may not be possible. For such a problem, in the drum type washing machine described in Patent Document 2, water is supplied for a predetermined time after the dehydration process is completed and before the drying operation is started, and control is performed so that water is reliably accumulated in the water seal trap. Running. However, in such a method, since water supply must be performed at a timing when water supply is not originally required, the control becomes complicated, and there is a possibility that water will be splashed on the laundry from which water has been drained by dehydration. The problem arises that the power consumption increases and power consumption increases. For this reason, the structure which can perform the water seal between a water inlet part and an outer tank reliably without performing such additional water supply is desired.

  In recent years, water saving has been very important in drum-type washing machines. For example, in the drum-type washing machine described in Patent Document 3, the cooling water used in the drying operation is collected and stored. A storage tank is placed in the lower space of the outer tank so that the stored water can be used for easy washing in the next wash. Thus, if it is set as the structure which can reuse once used water, a considerable water-saving effect can be anticipated.

  However, in order to be able to reuse such water at the time of the next washing, it is necessary to allow the detergent to be put into the outer tub even by the water to be reused. There is a problem that the structure of the water channel to be guided becomes complicated and the size of the water inlet itself becomes large.

JP-A-11-104397 JP-A-11-114286 Japanese Patent No. 2650339

  The present invention has been made to solve the above-mentioned problems, and the first object is to collect water vapor with a water-sealed trap provided in a water supply path that connects the water inlet and the outer tub. It is an object of the present invention to provide a drum type washing machine that can be reliably performed.

  A second object of the present invention is a drum-type washing machine having a configuration in which water used for washing and drying is stored and reused in the next washing, and has a function of automatically supplying a detergent. An object of the present invention is to provide a drum type washing machine that can suppress an increase in the size of the water injection port.

A first invention made to achieve the first object includes a housing, an outer tub supported by an elastic member in the housing so as to be swingable, and a horizontal axis or an inclination in the outer tub. A cylindrical drum having a circumferential surface arranged rotatably about an axis, a water supply means for supplying water for easy washing into the outer tub through a water injection port for storing a detergent container, and the outer In a drum-type washing machine comprising hot air supply means for supplying hot air for drying into the tank,
A water-sealed trap is provided in a water supply flow path connecting the water injection port and the outer tub, and the water-sealed trap is fixed to a portion that does not follow the oscillation of the outer tub. It is characterized in that at least a part of the water supply flow path between the two is made elastic.

  Here, the “part not following the swinging of the outer tub” means a part excluding the outer tub itself or a member directly fixed to the outer tub without using an elastic member such as rubber in the housing. Typically, the case itself or a member fixed to the case directly or via a member having no elasticity corresponds to the case itself.

  As a specific aspect of the first invention, the water-sealed trap can be configured to be fixed to the water inlet port fixed to the housing.

  In the drum type washing machine according to the first aspect of the present invention, water is accumulated in the water seal trap when water is supplied, and the water supply channel is sealed with water when the water supply is stopped. It is caught by a water seal trap and does not reach the water inlet. When the drum is rotated at a high speed during dehydration, the drum vibrates due to the deviation of the laundry contained in the drum, and the outer tub may also swing relatively large with this. Since the outer tub is supported by the elastic member, the swing of the outer tub is absorbed by the elastic member, and the vibration of the casing itself is suppressed (that is, the casing does not follow the swing of the outer tub). Further, since at least a part of the water supply channel between the water-sealed trap and the outer tub has elasticity, vibrations propagating through the water supply channel are absorbed here.

  Therefore, the water-sealed trap does not vibrate as much as the housing, and it is possible to avoid discharging the water accumulated for the water-sealing. Thereby, it is possible to reliably prevent water vapor from leaking from the water inlet and dew condensation during the drying operation. Further, unlike the conventional case, it is not necessary to perform unnecessary water supply in order to securely seal the water, so that the control is not complicated and the dehydrated laundry is not wetted again.

  Moreover, as one embodiment of the drum-type washing machine according to the first aspect of the present invention, the water-sealed trap has a water storage chamber having an inflow port through which water from the water injection port flows and an outflow port for sending water to the outer tub. A water inlet side space in which the inlet is provided by a rib formed from the member formed inside, and the communication port formed between the lower end of the rib and the lower wall surface with a rib hanging from the upper wall surface And the outer tub side space in which the outlet is provided, and the opening of the communication path is preferably set to be larger than the area of the opening of the inlet.

  Here, the member that forms the water storage chamber may be a synthetic resin (for example, polypropylene resin) molded product that does not easily deform. In a water-sealed trap, the flow of water in the communication passage tends to be worse because the communication passage is lower than the inlet and outlet, but according to the above configuration, the flow rate of water flowing in the communication passage during water supply Is limited by the opening area of the inlet, so that water can be circulated well in the reservoir. Thereby, powder detergent etc. can be prevented from remaining in the vicinity of the communication path at a relatively low position.

  More preferably, the lower wall surface of the water inlet side space in the water storage chamber is inclined downward toward the rib.

  According to this configuration, the water that flows into the water storage chamber from the water inlet through the inlet during water supply flows smoothly along the lower wall surface that is downwardly inclined, so that it is more reliably prevented that detergent or the like remains in the communication path. can do.

  Moreover, the said structure WHEREIN: The said water seal trap is good to set it as the structure arrange | positioned so that the lower wall surface which is the said downward inclination may follow the circular arc of the outer peripheral wall surface of the said outer tank.

  According to this, a water seal trap can be arrange | positioned in proximity to an outer tank, space saving can be achieved and the external size of a housing | casing can be made smaller.

The second invention made to achieve the second object is a casing, an outer tub disposed in the casing, and a rotatable inside the outer tub about a horizontal axis or an inclined axis. And a drum for storing a detergent in advance by a user, and the detergent contained in the detergent container together with water supplied to the outer tub. A water inlet having a detergent charging function to be supplied into the outer tub, a water supply valve for flowing tap water supplied from the outside to the water inlet, and a bath water supplied from outside is sucked into the water inlet. In a drum-type washing machine comprising a bath water pump to be sent,
A water storage tank capable of storing the water discharged from the outer tank, and a reflux water channel and a pumping means for supplying water stored in the water storage tank to the water injection port,
The water injection port includes a first water passage that guides tap water supplied through the water supply valve into the detergent container, and a passage that guides water supplied by the bath water pump into the detergent container. It has the 2nd water channel which serves as a water channel and the water channel which guides the water supplied by the said pressure feeding means in the said detergent container, It is characterized by the above-mentioned.

  In the drum type washing machine according to the second aspect of the present invention, when the bath water pump is operated during bath water supply, the bath water sucked from the outside flows into the detergent container through the second water passage of the water inlet. Therefore, if the user puts the detergent in a predetermined position in the detergent container in advance, the detergent is washed away by the bath water and put into the outer tub. On the other hand, when the pumping means is operated in a state where water used in the previous washing and drying (hereinafter referred to as “medium water”) is stored in the storage tank, the water injection port portion passes through the reflux water channel. It is sent to the detergent container through the second water passage in the same manner as when bath water is supplied. Also in this case, if the user puts the detergent in a predetermined position in the detergent container in advance, the detergent can be put into the outer tub. Thereby, even in the configuration that enables reuse of water, the size of the water injection port is hardly increased, and the space in the housing can be saved.

  In addition, since the intermediate water is water once used for washing and drying, there is a possibility that relatively large foreign matter such as lint is mixed. It may not be possible to remove it. Therefore, the drum-type washing machine according to the second aspect of the present invention is located in the water injection port, and the opening size of the water discharge port that discharges water from the second water channel into the detergent container is from the first water channel to the inside of the detergent container. It is good to set it as the structure set larger than the opening size of the water outlet which discharges water.

  According to this configuration, even when a certain amount of yarn waste or the like is mixed in the water sent through the reflux channel, the yarn waste is discharged from the second water passage to the detergent container. It becomes difficult to clog and water supply can be performed smoothly.

  In addition, when the second water passage is shared by the bath water supply and the middle water supply as described above, the water supply flow channel and the reflux water flow channel between the discharge port and the water injection port of the bath water pump are merged. Therefore, if the pressure feeding means is operated in a state where the bath water pump is stopped, a part of the middle water may flow backward to the discharge port side of the bath water pump. In general, a bath water pump is used, but in this case, since a priming water is required at the beginning of the pump operation, a priming water channel for supplying tap water to the bath water pump as a priming water is provided. Therefore, when middle water enters the bath water pump, the middle water that has flowed back through the priming water channel enters the outlet side of the water supply valve, and tap water may be contaminated with the middle water when the water is shut off.

  Therefore, in order to prevent the above-described contamination due to middle water, in the drum type washing machine according to the second aspect of the present invention, in the water supply flow path between the discharge port of the bath water pump and the water injection port, the reflux is performed. It is preferable that a check valve is provided between the junction with the water channel and the discharge port. According to this configuration, it is possible to surely prevent the middle water from flowing back into the bath water pump, and thus there is no possibility that the tap water is contaminated as described above.

  By the way, in the drum type washing machine which concerns on 2nd invention, it is necessary to arrange | position a water storage tank in the downward space of an outer tank, and it is necessary to make the height of a housing | casing high by that, and it is provided in the upper part of an outer tank. The position of the water inlet is also relatively high. In such a configuration, the position of the detergent container that is forward-drawn is also increased, and there is a problem that it is difficult to put the detergent into the detergent container.

  Therefore, in the drum type washing machine according to the second aspect of the present invention, the detergent container can be pulled out forward of the housing, and the front edge of the detergent container in the state of being pulled out forward than in the state of being housed in the housing. It is good to set it as the structure made into the front downward inclination so that a part may fall.

  According to this configuration, when the user pulls the detergent container forward to put the detergent or the soft finish into the detergent container, the opening on the upper surface is directed not diagonally upward but obliquely upward. The user standing in front of the cleaner can easily see the inside of the detergent container, and it is easy to put in the detergent and the soft finish, improving usability.

  Furthermore, in the above-described configuration, the detergent container can be pulled out forward by sliding a convex portion or a concave portion formed on both side wall surfaces of the detergent container along a guide portion formed on the water injection port side. The guide portion is preferably substantially horizontal as a whole, and only the front edge portion is formed to be inclined forwardly.

  According to this configuration, when the detergent container stored in the housing (water injection port portion) is pulled forward, the detergent container is tilted forward only when it is pulled out in a substantially horizontal direction and reaches the maximum pull-out position. . Accordingly, there is little backlash when pulling out or pushing in the detergent container, and a high-class feeling can be obtained.

  According to the drum type washing machine according to the first aspect of the present invention, the water held in the water seal trap is not discharged even if the outer tub swings greatly during dehydration, and the water vapor generated in the outer tub during drying. Can be reliably prevented from flowing back to the water inlet. Thereby, the dripping of the water by the water vapor leak from a water-injection opening part or dew condensation can be prevented.

  Moreover, according to the drum type washing machine which concerns on 2nd invention, in the structure which stores the water used for washing and drying, and uses this for the next washing, the size of the water injection port part which has a detergent automatic injection | throwing-in function is An increase in size can be avoided.

  Hereinafter, a drum type washing and drying machine according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of the drum type washing and drying machine of the present embodiment, FIG. 2 is a schematic side sectional view of the drum type washing and drying machine of this embodiment at a position where a water supply / drainage path appears, and FIG. FIG. 4 is a rear perspective view of the main part inside the case of the drum type washing and drying machine of this embodiment, and FIG. 5 covers the upper surface. It is a back perspective view of the state where an upper surface board etc. were removed.

  The casing 1 forming the outer shape of the drum type washing and drying machine has a substantially box shape as a whole. The front surface 1a of the housing 1 is slightly curved from the upper part to the center part, and is slightly inclined upward. A substantially circular clothing input port 1b is formed there, and the clothing input port 1b extends inside. It can be opened and closed by a laterally openable door 2 that can be seen through. In addition, an operation panel 5 that is elongated to the left and right and is provided with various operation keys and indicators is provided on the upper portion of the front surface 1a, that is, on the clothing insertion port 1b, and a drawer-type detergent container 6 is provided on the left side of the operation panel 5. The drawer type dry filter container 7 is also installed on the right side.

  In addition, a water supply hose connection port 3 to which the other end of a water supply hose whose one end is connected to a water tap is connected is arranged on the upper surface 1c of the housing 1, and one end is immersed in the bath water in the bathtub on the right side thereof. A bath water hose connection port 4 to which the other end of the bath water hose is connected is arranged. The water supply hose connection port 3 is formed by exposing a water inlet of a water supply valve 21 described later directly to the upper surface, and the bath water hose connection port 4 is formed by exposing the water inlet of the bath water pump 22 directly to the upper surface. Has been.

  Inside the housing 1, an outer tub 10 having a substantially cylindrical peripheral surface is held in a freely swingable manner by a damper 11 that supports the left and right sides and a spring (not shown) that pulls the upper part. That is, the damper 11 and the spring are elastic members. A front surface of the outer tub 10 is formed with an outer tub front surface opening 10a that is open in a circular shape relative to the clothing input port 1b of the housing 1, and a peripheral edge portion of the outer tub front surface opening 10a and a peripheral edge portion of the clothing input port 1b. Are connected by a flat cylindrical packing 12 made of an elastic material such as rubber.

  Inside the outer tub 10, a drum 13 having a substantially cylindrical shape for accommodating laundry is supported by a main shaft 14 that extends in the front-rear direction and is inclined forward. The front end surface of the drum 13 is formed with a drum front opening 13a that is widely opened. When the door 2 is opened, the interior of the drum 13 is passed through the outer tank front opening 10a and the drum front opening 13a from the upper front side. You can peek into it. Here, the inclination angle θ of the central axis C of the drum 13, that is, the central axis of the main shaft 14 is set to about 15 ° with respect to the horizontal line, but this is an example, and the inclination angle θ is about 10 to 30 °, for example. Is set at an appropriate angle.

  The front end of the main shaft 14 is firmly fixed to the rear surface of the drum 13 and is rotatably supported by a bearing 16 of a bearing fixing member 15 attached to the rear surface portion of the outer tub 10. A rotor 172 of a motor 17 which is an outer rotor type DC brushless motor is attached to an end portion of the main shaft 14 protruding rearward of the outer tub 10, while a stator 171 of the motor 17 is fixed to the bearing fixing member 15. ing. The rotor 172 including the permanent magnet is disposed so as to surround the outer peripheral side of the stator 171 including the windings, whereby the motor 17 has a thin structure in the extending direction of the main shaft 14. When a drive current is supplied to the stator 171 from a control circuit (not shown), the rotor 172 rotates and the drum 13 is rotationally driven through the main shaft 14 at the same rotational speed as the rotor 172.

  In the upper space in the housing 1, a water supply unit 20 including a water supply valve 21, a bath water pump 22 for bath water supply, and a water inlet 23 is disposed. The water inlet directed to the upper side of the water supply valve 21 is the water supply hose connection port 3, and the water inlet directed to the upper side of the bath water pump 22 is the bath water hose connection port 4. A water injection port 23 that allows the detergent container 6 to be pulled out is disposed in front of the water supply valve 21, and water supplied to the water injection port 23 via the water supply valve 21 and the bath water pump 22 mainly passes through the interior of the detergent container 6. As a result, the water is supplied into the outer tub 10 from the water throat 25 provided at the rear portion of the outer tub 10 through the irrigation pipe 24 connected to the bottom of the water throat 23.

  As described above, the water supplied and stored in the outer tub 10 flows into the drum 13 through the water passage hole 13b. Further, water discharged from the laundry in the drum 13 during dehydration is scattered to the outer tub 10 side through the water passage hole 13b. A drain outlet 26 is provided behind the bottom of the outer tub 10, and the drain outlet 26 is connected to the inlet of the drain valve 27. When the drain valve 27 is opened, the water stored in the outer tub 10 is It is discharged out of the machine through the drain pipe 28.

  On the other hand, the drain outlet 26 is also connected to the inlet of the water storage valve 41. When the water storage valve 41 is opened with the drain valve 27 closed, the water stored in the outer tub 10 is not the drain pipe 28. Then, it flows into the water storage tank 40 installed at the bottom of the housing 1. That is, the water once used for washing can be stored in the water storage tank 40 without being discarded. The water storage tank 40 and the water inlet 23 are connected by a reflux water channel 43, and a middle water pump 42 as a pressure feeding means in the present invention is provided in the middle thereof.

  In this drum type washing / drying machine, after the final rinse is executed, the water used for the rinse is stored in the water storage tank 40. The water storage tank 40 is provided with a purification device (not shown) for purifying stored water (medium water), and the action of this purification device suppresses the propagation of germs. At the time of the next washing, when the intermediate water supply is designated, the intermediate water pump 42 is operated, the intermediate water stored in the water storage tank 40 is sucked and sent to the water inlet 23 through the reflux water channel 43, and the water supply Instead of water or bath water, it is supplied into the outer tub 10 through the detergent container 6. Thereby, the amount of water used for washing can be significantly reduced compared with the past.

  Further, this drum type washing and drying machine also has a function of drying the laundry after dehydration. As shown in FIG. 4, an air discharge port 31 is provided at the lower rear surface of the outer tub 10, and the air discharge is performed. The ventilation path 32 connected to the outlet 31 passes through the rear, side and top of the outer tub 10 and is connected to an air supply port 36 provided at the upper front of the outer tub 10. In the middle of the ventilation path 32, a drying filter (not shown) housed in a drying filter container 7 that can be drawn forward, a fan 33 that is rotationally driven by a fan motor 34, and a heater 35 for drying are disposed. Has been. Further, an end portion of a cooling water hose (not shown) is connected to the upright portion of the ventilation path 32.

  Thus, during the drying operation, the air flow generated by the fan 33 is heated by the heater 35 and then discharged from the air supply port 36 and supplied into the drum 13. When the heated air passes through the inside of the drum 13, it exchanges heat with the laundry to remove moisture, and flows into the ventilation path 32 through the air outlet 31. Water flows continuously or intermittently through the cooling water hose in the upright portion of the ventilation path 32, and when heated air containing a large amount of water vapor comes into contact with this cooling water, the water vapor is condensed and condensed. Condensed water flows along the cooling wall along the inner wall of the ventilation path 32, flows into the outer tub 10, and is discharged from the drain 26. The dry air from which water vapor has been removed in the air passage 32 passes through the drying filter and circulates through the fan 33 and returns to the heater 35. Foreign matters such as lint, dust and pollen mixed in the air when passing through the drying filter are removed.

  As shown in FIG. 5, as a member constituting the housing 1, two side plates 101 that respectively close both the left and right side surfaces, and two pieces attached so as to pass between the upper edge portions of the side surface plates 101 are used. And approximately U-shaped joint plate members 102 and 103. The joint plate members 102 and 103 are members for reinforcing the casing 1, and an upper surface plate covering the upper surface is attached on the joint plate members 102 and 103. The water supply unit 20 including the water injection port 23 and the like, and the drying unit including the fan 33 and the heater 35 are fixed to the upper edge portions of the joint plate members 102 and 103 and the side plate 101 with screws.

  Next, a characteristic configuration and operation of the drum type washing and drying machine of the present embodiment will be described. First, the water-sealed trap provided in the middle of the water injection pipe 24 as a water supply flow path which connects the water injection port part 23 and the outer tank 10 is demonstrated. FIG. 6 is a detailed view of the periphery of the water seal trap, as seen from the left side. FIG. 7 is a longitudinal sectional view of this water-sealed trap.

  As shown in FIG. 4, the water-sealed trap 50 is installed in the middle of the water injection pipe 24, but more specifically, the outlet of the water-sealed trap 50 (an outlet 53 described later) and the water inlet 25 of the outer tub 10. A bellows-like connection pipe 24a made of an elastic material such as rubber is inserted in the water injection pipe 24 between the outlet and the water injection pipe 23, and an outlet of the water injection port portion 23 and an inlet (an inlet 52 described later) of the water seal trap 50. Are connected by a pipe 24b having no elasticity. As described above, the water supply unit 20 including the water inlet 23 is firmly fixed to the side plate 101 and the joint plate member 103 which are part of the housing 1 with screws, and the pipe 24b is also a member having no elasticity. Thus, the water seal trap 50 is indirectly fixed to the housing 1. Therefore, when the outer tub 10 swings, the swing is absorbed by the connecting tube 24a that can be expanded and contracted, and the water-sealed trap 50 does not follow the swing of the outer tub 10.

  The water seal trap 50 has a synthetic resin main body 51 that forms a water storage chamber therein, and the main body 51 is formed by bonding two members 51a and 51b by thermal welding (or vibration welding). An inflow port 52 is formed above the one member 51a, and an outflow port 53 is formed above the other member 51b. The water storage chamber in the main body 51 is partitioned into a first space 512 on the inflow port 52 side and a second space 513 on the outflow port 53 side by a rib 511 that hangs down from the upper wall, and both spaces 512 and 513 are at the lower ends of the ribs 511. And a communication passage 514 formed between the main body 51 and the lower wall of the main body 51. With the above configuration, a substantially U-shaped channel having the communication path 514 as a bottom is formed between the inlet 52 and the outlet 53 inside the main body 51, and the communication path 514 is in a state where water supply is stopped. The flow path is completely sealed by the water that remains in the water. That is, it functions as a water seal trap.

  Here, the cross-sectional area of the communication path 514 is set larger than the opening area of the inflow port 52. Therefore, the amount of water entering the main body 51 is limited not by the cross-sectional area of the communication passage 514 but by the opening area of the inflow port 52. For this reason, when water passes through the communication path 514, the water force here is unlikely to weaken. Further, the lower wall surface 515 in the communication path 514 has a shape inclined downward in the direction of water flow. For this reason, the water that has flowed in from the inflow port 52 flows along this inclination, and can pass through the communication path 514 with force and rise to the outflow port 53. Thereby, even when the powder detergent is mixed in the incoming water, the water reaches the outlet 53 together with the powder detergent, and the powder detergent hardly remains in the communication path 514.

  As described above, the water-sealed trap 50 having the above-described configuration is fixed to the water inlet 23, and vibration of the water-sealed trap 50 can be suppressed even if the outer tub 10 is greatly swung during dehydration or the like. Therefore, it is possible to prevent the water accumulated in the water storage chamber from being discharged from the outlet 53, and therefore, the water vapor that has flowed back from the outer tub 10 side during the drying operation by reliably sealing the flow path is provided. The flow to the 23 side can be prevented. Further, the water-sealed trap 50 is installed so close that the inclined bottom wall surface 515 of the main body 51 does not come into contact when the outer tub 10 is swung so as to follow the arc of the outer peripheral surface of the outer tub 10. . Thereby, the space for providing the water seal trap 50 can be saved.

  Next, a characteristic configuration of the water inlet 23 will be described. 8 is a top view of the entire water supply unit 20, FIG. 9 is a partial cross-sectional perspective view when the water supply unit 20 is viewed from the back, FIG. 10 is a schematic longitudinal cross-sectional view of the back side of the water inlet 23, and FIG. FIG. 12 is a side view showing a state in which the detergent container 6 is pulled out to the maximum extent.

  The detergent container 6 has a shape in which a handle 62 having a curved shape according to the shape of the housing 1 is provided at the front portion of the tray 61 whose entire upper surface is open, and the whole is an integrally molded product of synthetic resin. It is. Although not shown in the drawing, the inside of the tray 61 includes a powder detergent container for storing powder detergent, a liquid detergent container for storing liquid detergent, and a soft finish container for storing soft finish. It is divided into three.

  The water injection port 23 that accommodates the detergent container 6 in a freely retractable manner includes a case 231 having an open front surface and an upper surface, and a lid portion 232 that closes the upper surface opening. The lid portion 232 is formed with a plurality of water passages for guiding water supplied from the outside to the water inlet 23 into the tray 61 of the detergent container 6. That is, the water supplied by the water supply valve 21 at the time of washing water supply is supplied by the first water passage 233, the bath water pump 22 or the middle water pump 42 for guiding the powder detergent storage part or the liquid detergent storage part in the tray 61. Second water passage 234 for guiding the water to be supplied to the powder detergent container or the liquid detergent container in the tray 61, and the soft finish agent container in the tray 61 for supplying water supplied by the water supply valve 21 at the time of final rinsing water supply Three of the third water passages 235 for guiding to the water.

  A large number of water outlets 233a are formed in the first water passage 233, and the water introduced into the first water passage 233 flows down through the water outlet 233a and falls into the tray 61. A water outlet 234 a is also formed in the second water passage 234, and the water introduced into the second water passage 234 flows down through the water outlet 234 a and falls into the tray 61. The same applies to the third water passage 235. Here, the water outlet 234a of the second water passage 234 is formed to have a considerably larger opening area than the water outlet 233a of the first water passage 233. In order to avoid clogging without being able to pass through the spout 234a even when foreign matter such as lint is mixed in the middle water sent by the middle water pump 42 as will be described later. It is. Since tap water that does not contain foreign matter is introduced into the first water passage 233 and the third water passage 235, there is no possibility of foreign matter being clogged, so the opening area of each of the water outlets 233 a and 235 a is reduced. .

  Since the bath water pump 22 is self-contained, suction is not started unless the pump chamber is filled with water during operation. Therefore, in order to supply tap water as priming water, a priming water hose 221 is connected between the first water passage 233 and the bath water pump 22, and the water supply valve 21 is initially set for a predetermined time even when bath water is supplied. The tap water is opened and the tap water is sent to the bath water pump 22 so that the suction operation of the bath water pump 22 is started.

  As described above, the second water passage 234 includes the water passage for introducing the middle water supplied by the middle water pump 42 (that is, the water stored in the water storage tank 40) into the detergent container 6, and the bath. It also serves as a water passage for introducing bath water sucked and discharged from the outside by the water pump 22 into the detergent container 6. Thereby, even if compared with the conventional drum-type washing machine which is not provided with the function which reuses middle water, the volume of the water injection port part 23 may be substantially the same, and a space does not increase.

  In order to supply one or both of the middle water and the bath water to the common second water passage 234, a configuration as shown in FIGS. 9 and 10 is adopted. That is, the rear wall of the case 231 of the water injection port 23 is connected to the first connection port 231a to which the bath water supply pipe 222 connected to the discharge port of the bath water pump 22 is connected and the discharge port of the middle water pump 42. The second connection port 231b to which the reflux water channel 43 is connected is arranged in the vertical direction. Then, a junction chamber 236 in which the two join together is provided inside the case 231 with the wall surface interposed therebetween, and a second water passage 234 is formed so as to continue to the junction chamber 236. In addition, a drain hole 237 is formed in the bottom surface of the merge chamber 236 so that no residual water is generated in the merge chamber 236 when the bath water pump 22 or the middle water pump 42 is stopped.

  As described above, the bath water supply pipe 222 and the reflux water channel 43 communicate with each other through the junction chamber 236, and the discharge port of the bath water pump 22 and the flow path of the priming hose 221 communicate with each other through the pump chamber. is doing. Therefore, a check valve 223 is provided in the middle of the bath water supply pipe 222 so that the middle water does not flow into the bath water pump 22. The check valve 223 is opened when the bath water pump 22 performs suction / discharge operation and water is sent from the bath water pump 22 to the water inlet 23 through the bath water supply pipe 222, and the bath water pump 22 is activated. Close if not. Thus, for example, even when the water supply valve 21 is opened and the external water tap and the first water passage 233 of the water inlet 23 communicate with each other, even when the water tap side becomes negative pressure due to water cut or the like, it is suitable for drinking. It is possible to prevent the middle water not flowing back to the water tap through the bath water pump 22 and the water supply valve 21.

  Now, in the drum type washer / dryer of this embodiment, since the water storage tank 40 is installed in the space below the outer tub 10, the height of the casing 1 is 100 higher than that of a conventional general drum type washer / dryer. About 200mm higher. Therefore, the position when the detergent container 6 is pulled forward also becomes high, and it may be difficult for a short user to put the detergent or the soft finish into the tray 61 of the detergent container 6. Therefore, in this drum type washing and drying machine, the guide groove 238 formed in the joint portion between the both side walls of the case 231 of the water inlet 23 and the lid portion 232 is a substantially horizontal horizontal portion 238a, and the front end It is formed so as to be a lower inclined portion 238b that inclines forwardly only near the portion.

  Guide ribs 61 a that extend horizontally outward are formed at the upper edges of both side walls of the tray 61 of the detergent container 6, and the guide ribs 61 a slide back and forth along the guide grooves 238. The detergent container 6 can be pulled out forward. When the user pulls out the detergent container 6, the guide rib 61 a slides along the horizontal portion 238 a, so that the pull-out direction is almost horizontal, but when it comes close to the maximum pull-out position, the lower inclined portion 238 b of the guide groove 238 Since the guide rib 61a is held, the entire detergent container 6 is inclined forward and downward as shown in FIG. As a result, the upper surface opening of the tray 61 faces slightly obliquely forward rather than directly above, and the inside of the tray 61 can be easily viewed from the user standing in front of the drum type washing and drying machine. Further, when the detergent container 6 is pulled out or pushed in, the detergent container 6 moves almost horizontally in the middle thereof, so that it does not easily rattle and tilts forward and immediately before reaching the maximum drawer position, so that the operational feeling is good. Therefore, it is possible to give a high-class feeling to the user.

  It should be noted that the above embodiment is an example of the present invention, and it is obvious that even if changes, modifications, and additions are made as appropriate within the scope of the present invention, they are included in the claims of the present application.

1 is an external perspective view of a drum type washing and drying machine according to an embodiment of the present invention. The schematic side longitudinal cross-sectional view in the position where a water supply / drainage path appears in the drum type washing-drying machine of a present Example. The schematic side surface longitudinal cross-sectional view in the position where a drying path | route appears in the drum type washing-drying machine of a present Example. The rear perspective view of the principal part inside the housing | casing of the drum type washing-drying machine of a present Example. The rear perspective view of the state which removed the upper surface board etc. which coat | cover the upper surface of the drum type washing-drying machine of a present Example. The detailed figure of the circumference of the water seal trap in the drum type washing and drying machine of a present Example. The longitudinal cross-sectional view of a water seal trap. The top view of the whole water supply unit. The partial cross section perspective view when a water supply unit is seen from the back. The schematic longitudinal cross-sectional view of the back side of a water inlet part. The longitudinal cross-sectional view of the principal part of the water injection port part which accommodates a detergent container. The side view which shows the state which pulled out the detergent container to the maximum.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Door 3 ... Water supply hose connection port 4 ... Bath water hose connection port 6 ... Detergent container 61 ... Tray 61a ... Guide rib 62 ... Handle 7 ... Dry filter container 10 ... Outer tank 101 ... Side plate 102, 103 ... Joint plate member 10a ... Outer tank front opening 11 ... Damper 12 ... Packing 13 ... Drum 13a ... Drum front opening 14 ... Main shaft 17 ... Motor 1b ... Clothing inlet 20 ... Water supply unit 21 ... Water supply valve 22 ... Bath water pump 223 ... The priming hose 23, the water inlet 231, the case 232, the lid 233, the first water passage 233 a, the water outlet 234, the second water passage 234 a, the water outlet 235, the third water passage 236, the merge chamber 237, the drain hole 238 ... Guide groove 238a ... Horizontal portion 238b ... Lower inclined portion 24 ... Water injection pipe 24a ... Connection pipe 24b ... Pipe 25 ... Water injection port 26 ... Drain port 27 ... Drain valve 28 ... Drain pipe 3 ... Air discharge port 32 ... Ventilation channel 33 ... Fan 34 ... Fan motor 35 ... Heater 36 ... Air supply port 40 ... Water tank 41 ... Water storage valve 42 ... Medium water pump 43 ... Reflux water channel 50 ... Water seal trap 51 ... Main body 511 ... Rib 512 ... 1st space 513 ... 2nd space 514 ... Communication path 515 ... Lower wall surface 52 ... Inlet 53 ... Outlet

Claims (10)

A casing, an outer tub that is swingably supported by an elastic member in the casing, and a circumferential cylindrical drum that is rotatably disposed around the horizontal axis or the tilt axis in the outer tub Water supply means for supplying water for easy washing in the outer tub through the water injection port for storing the detergent container, hot air supply means for supplying hot air for drying into the outer tub, In a drum-type washing machine comprising:
A water-sealed trap is provided in a water supply flow path connecting the water injection port and the outer tub, and the water-sealed trap is fixed to a portion that does not follow the oscillation of the outer tub. A drum-type washing machine characterized in that at least a part of a water supply flow path between the two has elasticity.   The drum-type washing machine according to claim 1, wherein the water-sealed trap is fixed to the water injection port portion fixed to the housing.   The water seal trap is formed of a member that forms a water storage chamber having an inflow port through which water from the water injection port flows and an outflow port for sending water to the outer tub, and the water storage chamber space is formed from an upper wall surface. The hanging rib divides the water inlet side space provided with the inlet and the outer tank side space provided with the outlet across a communication path formed between the lower end of the rib and the lower wall surface. The drum type washing machine according to claim 1 or 2, wherein the opening of the communication passage is set to be larger than the area of the opening of the inflow port.   The drum type washing machine according to claim 3, wherein a lower wall surface of the water filling side space in the water storage chamber is inclined downward toward a direction in which the rib is present.   5. The drum type washing machine according to claim 4, wherein the water seal trap is disposed such that a lower wall surface that is inclined downward is along an arc of an outer peripheral wall surface of the outer tub. A housing, an outer tub disposed in the housing, a drum disposed in the outer tub so as to be rotatable around a horizontal axis or an inclined shaft, and a user storing detergents in advance. And a water injection port portion having a detergent charging function for supplying the detergents contained in the detergent container into the outer tank together with water supplied in the outer tank, In a drum-type washing machine comprising a water supply valve for flowing supplied tap water to the water injection port, and a bath water pump for sucking bath water supplied from the outside and sending it to the water injection port,
A water storage tank capable of storing the water discharged from the outer tank, and a reflux water channel and a pumping means for supplying water stored in the water storage tank to the water injection port,
The water injection port includes a first water passage that guides tap water supplied through the water supply valve into the detergent container, and a passage that guides water supplied by the bath water pump into the detergent container. A drum-type washing machine comprising: a water channel and a second water channel that also serves as a water channel that guides the water fed by the pressure feeding means into the detergent container.   The opening size of the water outlet that discharges water from the second water passage into the detergent container is larger than the opening size of the water outlet that discharges water from the first water passage into the detergent container. The drum type washing machine according to claim 6, wherein the drum type washing machine is set.   The water supply flow path between the discharge port of the bath water pump and the water injection port is provided with a check valve between the junction with the reflux water channel and the discharge port. A drum-type washing machine as described in 1.   The detergent container can be pulled out forward of the housing, and in a state where the detergent container is pulled out forward, the detergent container is inclined downward so that the front edge of the detergent container is lower than the state of being housed in the housing. The drum type washing machine according to claim 6. The detergent container can be drawn forward by sliding a convex part or a concave part formed on both side wall surfaces of the detergent container along a guide part formed on the side of the water injection port. The drum type washing machine according to claim 9, wherein the portion is substantially horizontal as a whole, and only the front edge portion is formed to be inclined forwardly.

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