JP2000342880A - Drum type washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the depth size over the entire part and to stabilize the open state of door by providing the washing machine with an outer box having a wash outlet and inlet port and the door for opinion and closing this port and a drum rotatably disposed to a forward uphill inclined state within a water tank at its front surface and inclining the door at an angle different from the angle of the front surface part of the drum. SOLUTION: The drum-like water tank 2 is disposed within the outer box 1 constituting a rectangular box shape as a whole and is elastically supported in the forward uphill inclined state on the base surface part of the outer box 1 by means of a pair of right and left suspensions 3. The drum 11 is housed in this water tank 2. The drum 11 is arranged to the forward uphill inclined state like the water tank 2 and is freely rotatably supported. The wash inlet and outlet port 36 formed at the front surface part 1a of the outer box 1 is freely openably and closably provided with the door 37. The door 37 is disposed to incline diagonally upwardly at the angle of θ2 with the perpendicular plane in a closed state. As a result, the overhanging accompanying the inclination of the drum 11 in the lower part of the front surface part 1a of the outer box 1 is suppressed and the depth size over the entire part is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing machine having a drum in a forwardly inclined state.

[0002]

2. Description of the Related Art Conventionally, a drum type washing machine is generally
Some have the drum in a horizontal state, while others have the drum in an upwardly inclined state. For those who have this drum in a forwardly inclined state,
The drum's axial direction is raised forward, making it easy to see the inside of the drum from the opening in the front of the drum,
It is easy to put laundry in and out. In this case, the door on the front surface of the outer box containing the drum, and the front part of the outer box are also provided at the same angle as the inclination of the front part of the drum.

[0003]

In the case of the above-mentioned conventional device, the lower portion of the inclined door and the lower portion of the front portion of the outer box project forward, so that the overall depth dimension is increased. or,
The sloping door was closed by its own weight when it was opened, hindering the loading and unloading of laundry.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the overall depth dimension of a drum having an upwardly inclined state and to stabilize the open state of a door. Another object of the present invention is to provide a drum-type washing machine capable of achieving the following.

[0005]

In order to achieve the above object, in a drum type washing machine according to the present invention, an outer box having a laundry entrance and a door for opening and closing the same at the front, and an outer box inside the outer box. An arranged water tub, and a drum that is disposed inside the water tub so as to be rotatable in an inclined state in which an axial direction is raised forward, and stores laundry to be thrown in from the laundry doorway,
A motor for rotating the drum is provided, and the door is inclined at a different angle from the front surface of the drum (the invention of claim 1).

According to this, overhanging of the lower part of the door according to the inclination of the front part of the drum is suppressed, and the weight of the opened door in the closing direction is reduced. In this case, together with the door, the front part of the outer box may be inclined at a different angle from the front part of the drum (the invention of claim 2). In this case, the inclination of the front part of the drum at the lower part of the outer box is preferred. Up to the overhang according to the above is suppressed. Therefore, it is preferable that the inclination angle of the front part of the outer box is smaller than the inclination angle of the front part of the drum (the invention of claim 3).

[0007] The inclination angle of the front part of the drum is preferably 5 to 20 °, and the inclination angle of the front part of the outer box is preferably 3 to 15 °, which is smaller than that by 2 ° or more. In this case, the visibility of the inside of the drum, the ease of taking in and out of the laundry, and the like are actually better obtained, but the overhang of the lower part of the outer box according to the inclination of the front part of the drum is suppressed, In addition, the weight of the opened door in the closing direction is reduced. It is preferable that a vertical surface is formed in a portion below the door in the front part of the outer box (the invention of claim 5). In this case, the overhang according to the inclination of the front part of the drum at the lower part of the outer box is further suppressed.

In the case where the water tank is also provided so as to be inclined forward, it is preferable to provide a water tank cover having a front portion extending from the lower portion to the laundry entrance side longer than the lower portion.
Invention). In this case, the aquarium cover fits into the space between the front part of the outer case and the front part of the water tank, the upper part of which is wider than the lower part. It is possible to connect the entrance and the aquarium.

In this case, if the apparatus further comprises a hot air generating device for generating hot air, an air supply port for supplying the hot air into the drum may be formed at an upper portion of the water tank cover. . In this case, by using the size of the upper portion extended longer than the lower portion of the water tank cover and forming the air supply port there, it is possible to avoid extending the entire depth dimension excessively. In this case, the water tank cover is preferably made of a heat-resistant material (the invention of claim 8). In this one,
Deformation of the aquarium cover due to the heat of the hot air passing through the air supply port can be avoided.

On the other hand, in the case where the water tub is also provided so as to be inclined forward, a bellows extending from the lower part to the drum side from the lower part to the drum side may be connected to the laundry entrance (the invention of claim 9). In this one, the bellow fits into the space between the front part of the outer box and the front part of the water tank where the upper part is wider than the lower part, and without changing the mating member connected to this bellow, It becomes possible to connect with a water tank.

In this case, if the apparatus further includes a hot-air generating device for generating hot air, an air supply port for supplying the hot air into the drum may be formed above the bellows. In this case, by using the size of the upper portion extended longer than the lower portion of the bellows and forming the air supply port there, it is possible to avoid extending the entire depth dimension excessively.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 1 shows the configuration of the entire drum type washing machine. A water tub 2 is provided inside an outer box 1 having a rectangular box shape as a whole. The water tank 2 has a drum shape and is elastically supported on the bottom surface of the outer box 1 via a pair of left and right (only one is shown) of suspensions 3. This is a tilted state that rises forward (left in the figure) and rises forward (left in the figure).

A reinforcing plate 4 is attached to the closed rear end portion (right end portion in the figure) of the water tank 2.
In addition, a bearing housing 7 in which bearings 5 and 6 are mounted is attached to the center of the rear end surface of the water tank 2. Bearing housing 7
, The stator 9 of the motor 8 is located at the back of the water tank 2.
Is installed. The motor 8 is an outer rotor type, for example, a brushless motor having a rotor 10 outside the stator 9.

A drum 11 is provided inside the water tank 2. A thicker, for example, metal drum support 12 is attached to the closed rear end face of the drum 11, and a drum shaft 13 is attached to the center of the drum support 12 and the rear end face of the drum 11. The drum shaft 13 is moved from inside the water tank 2 to the bearings 5 of the bearing housing 7.
6, the drum 11 is the same as the water tank 2,
It is arranged in an inclined state where the axial direction is up and down and forward,
And it is rotatably supported by the water tank 2.

The rotor 10 of the motor 8 is attached to the rear end of the drum shaft 13 projecting from the bearing housing 7. The drum 11 has a dehydration hole 14.
Is formed in almost the entire area of the body (only part is shown), and the baffle 15 is attached to several places on the inner peripheral part of the body (only part is shown). The water tub 2 is provided with a heater 16 for heating the washing water on the outer lower surface thereof.
A drain valve motor 19 for opening and closing the drain valve 18 is mounted on the outer lower surface of the water tank 2. A drain hose 20 is connected to the drain valve 18.

Further, a dehumidifier 21 is disposed, for example, on the left side behind the water tank 2, and the lower end of the dehumidifier 21 is connected to the drain port 1.
7 and the water tank 2 via the drain port 17, and the upper end thereof is connected to a casing 22 disposed on the upper side of the water tank 2. The casing 22 has a fan 23
And a belt transmission mechanism 24 for rotating and driving the fan 23 and a motor 25 for the fan.
It is located outside. A water supply valve 26 for supplying water into the water tank 2 is provided at an upper corner inside the outer box 1 outside the casing 22, and the supplied water is introduced into the water tank 2. A flexible water supply hose 27 to be inserted is connected.

A duct 28 is connected to the casing 22, and a heater 29 is provided in the duct 28. The heater 29 constitutes a hot air generator 30 with the fan 23, and the distal end of the duct 28 that blows out the hot air is connected to the air supply port 32 of the water tank cover 31.

The water tank cover 31 is mounted on the peripheral portion of the open front surface of the water tank 2 to constitute the front part of the water tank 2, and has a ring shape having an opening 33 at the center. This aquarium cover 31 has an upper part 31b from a lower part 31a.
Is extended forward, and the elongated upper portion 31
The above-mentioned air supply port 32 is formed in b. Further, the water tank cover 31 is made of a heat-resistant material such as a metal such as an iron plate or a stainless steel plate, or a heat-resistant resin such as glass or a filler-containing polypropylene. The water tank 2 has an axial inclination angle substantially equal to that of the drum 11.

On the other hand, the front portion 11a of the drum 11
Is composed of a drum cover 34. The drum cover 34 is attached to the peripheral edge of the open front surface of the drum 11, and also has a ring shape having an opening 35 at the center, and is made of a heat-resistant material. The front portion of the drum cover 34, that is, the front portion 11 of the drum 11
a is inclined obliquely upward at an angle of θ1 with respect to the vertical plane in accordance with the inclination of the drum 11.

On the other hand, the outer box 1 has a rectangular box shape as a whole as described above.
Is inclined obliquely upward at an angle of θ2 with respect to the vertical plane. The inclination angle θ2 is different from the above-mentioned inclination angle θ1 of the front surface 11a of the drum 11, and is set to be particularly smaller than that. Here, specifically, the inclination angle θ1 of the front portion 11a of the drum 11 is 5 to 20 °, particularly 10 °, and the inclination angle θ2 of the front portion 1a of the outer box 1 is smaller than that by 2 ° or more. 3 to 15 °, particularly 5 °.

A laundry entrance 36 is formed in the front part 1a of the outer box 1, and a door 37 is provided in the laundry entrance 36.
Is provided. The door 37 has a circular shape as shown in FIG. 2 according to the shape of the laundry entrance 36 (not shown, but has a circular shape), and has a left end pivotally attached to the outer box 1 by a hinge 38. The laundry door 36 is opened and closed by rotating left and right around the center 38. In the closed state, the door 37 is flush with the front portion 1a of the outer box 1. Therefore, the door 37 also tilts obliquely upward at an angle of θ2 with respect to the vertical plane. (See FIG. 1).

The laundry entrance 36 is connected to the tank cover 31 by a bellows 39. As shown in FIG. 2, a handle 4 for opening and closing is provided at the right end of the door 37.
0 and a hook 41 for holding a closed state. Further, the central portion of the door 37 is, for example, a double glass 42, 43.
(Refer to FIG. 1) to form a transparent portion.

In addition, a door 37 in the front part 1a of the outer box 1
In a lower portion, a vertical surface 44 is formed over the full width of the left and right, and in a lower portion, a recess 45 like a kick is formed over the full width of the left and right. A plurality of, for example, 4
On the other hand, a working port 47 is formed on the rear surface of the outer box 1, and the working port 47 is provided with a back plate 48.
Is detachably provided. As shown in FIG. 2, an operation panel 49 and a detergent charging case 50 are provided at the top of the front surface 1a of the outer box 1.

Next, the operation and effect of the above configuration will be described. At the time of washing, washing water (also not shown) supplied through the water supply valve 26 is supplied to the lower portion of the drum 11 while laundry (not shown) supplied from the laundry entrance 36 is accommodated in the drum 11. After the detergent is charged from the reservoir and the detergent charging case 50, the drum 11 is alternately rotated by the motor 8 at a low speed of, for example, 50 to 60 rpm in, for example, both forward and reverse directions. Thus, the laundry is agitated with the washing water to perform the washing. This folding, the baffle 15 sequentially lifts the laundry and the washing water, and promotes the stirring of the laundry and the washing water.

At the time of spin-drying, the drum 11 is rotated in one direction at a high speed of 800 to 2000 [rpm] by the motor 8 as described above. Thereby, the water contained in the laundry is discharged from the dewatering hole 14 by centrifugal force. The discharged water is discharged out of the machine through a drain port 17 through a drain valve 18 and a drain hose 20.

At the time of drying, the drum 11 is alternately rotated, for example, in both the forward and reverse directions at a low speed of 50 to 60 rpm as in the case of washing.
In addition to rotating the fan 23, the heater 29 generates heat. Thereby, the laundry is stirred and the air in the drum 11 is passed through the dehumidifier 21, the casing 22, and the duct 28 from the drain port 17 of the water tub 2 in order as shown by the arrow in FIG. The air is circulated back from the air supply port 32 into the drum 11. Thus, in the circulation path, the air in the drum 11 is dehumidified in the dehumidifier 21, and the air in the drum 11 is heated by the heater 29 in the duct 28 to generate hot air. Accordingly, hot air is supplied into the drum 11 from the air supply port 32 of the water tub cover 31, and the hot air is brought into contact with the laundry being stirred to dry the laundry.

Now, in the drum type washing machine of the present embodiment operated as described above, the door 37 for opening and closing the laundry entrance 36 has its inclination angle θ 2 set to the front 1 of the drum 11.
The inclination angle .theta.1 of 1a is not the same, but different. Thereby, according to the inclination of the front part 11a of the drum 11,
Since the lower portion of the door 37 is prevented from protruding, the overall depth dimension can be reduced.

Since the inclination angle of the door 37 is made different from the inclination angle θ1 of the front surface 11a of the drum 11 in this manner, the weight of the opened door 37 in the closing direction is reduced. 37 does not close by its own weight, that is, the open state of the door 37 can be stabilized,
The door 37 can be prevented from obstructing the loading and unloading of the laundry.

Further, in the case of this embodiment, together with the door 37,
The front part 1a of the outer box 1 is also inclined at an angle θ2 different from the front part 11a of the drum 11, so that the lower part of the front part 1a of the outer box 1 can respond to the inclination of the front part 11 of the drum 11. Since the overhang is suppressed, the overall depth dimension can be further reduced.

For these reasons, the inclination angle θ2 of the front part 1 of the outer box 1 is smaller than the inclination angle θ1 of the front part 11a of the drum 11, thereby reducing the overall depth dimension. Thus, the stabilization of the open state of the door 37 can be achieved more reliably.

More specifically, the front portion 11 of the drum 11
a is 5 to 20 °, and the front part 1 of the outer case 1
The inclination angle of a is smaller than 2 °, 3 to 15 °
And In this device, the visibility inside the drum 11 and the ease of taking in and out of the laundry are actually better obtained, but also the overall depth dimension is reduced,
Stability of the open state of the door 37 can be reliably achieved.

Here, (a), (b), (c) of FIG.
Represents the viewing angle ψ of the user with respect to the inside of the drum 11 depending on the inclination angle θ1 of the front portion 11a of the drum 11, and the inclination angle θ1 of the front portion 11a of the drum 11 is 0 °, 10 °, 20 ° As it gets bigger, drum 1
It can be seen that the viewing angle 視 of the user with respect to the inside of the area 1 increases.

FIG. 4 shows a front portion 11a of the drum 11.
Of the inside of the drum 11, ease of putting in and out of the laundry, remaining of the laundry (clothes remaining on the upper surface of the drum 11 after dehydration) depending on the inclination angle θ1 of the
And their comprehensive results are shown by evaluation based on experiments by the inventor. As is apparent from FIG. 4, the inclination angle θ is smaller than when the front surface 11a of the drum 11 is at an angle of 0 °.
As 1 increases from 5 to 20 [deg.], The respective evaluation values rise and good evaluation is obtained. Note that the inclination angle θ1 is 20
°, the ease of taking out the laundry, the rest of the laundry, and the evaluation value of the overall result slightly decrease, but are still good evaluation values. For this reason, the inclination angle .theta.1 of the front surface portion 11a of the drum 11 is preferably set to 5 to 20 degrees.

On the other hand, if the inclination angle θ2 of the front surface 1a of the outer box 1 is too large, the effect of reducing the overall depth and stabilizing the open state of the door 37 can be sufficiently obtained. On the contrary, if the size is too small, the visibility of the inside of the drum 11 and the ease of taking in and out of the laundry are impaired. Therefore, the inclination angle θ2 of the front portion 1a of the outer box 1 is
1 is smaller than the inclination angle θ1 of the front portion 11a by 2 ° or more,
3 to 15 ° is preferred.

Further, a vertical surface 44 is formed in a portion of the front surface 11a of the outer box 11 below the door 37. Thereby, the drum 11 below the front part 1a of the outer box 11
Overhang in accordance with the inclination of the front surface portion 11a can be further suppressed, and reduction in the overall depth dimension can be more reliably achieved.

In addition, in the case of the present embodiment, the water tank 2 is also provided in the same upwardly inclined state as the drum 11, and the water tank 2 has an upper part 31b in front of a lower part 31a than a lower part 31a.
That is, the water tank cover 31 is extended to the laundry entrance 36 side. Thereby, the water tank cover 31 fits into the space between the front part 1a of the outer box 1 and the front part of the water tank 2 in which the upper part is wider than the lower part. Without change of
The laundry entrance 36 of the outer box 1 and the water tub 2 can be connected.

In this case, an air supply port 32 for supplying the hot air generated by the hot air generating device 30 into the drum 11 is provided.
It is formed on the upper part 31a of the water tank cover 31. Thereby, the air supply port 32 can be formed there by using the dimension of the upper part 31b extending longer than the lower part 31a of the water tank cover 31, so that the entire depth dimension does not need to be excessively extended, and the entire depth dimension can be reduced. Can be more reliably achieved. In this case, the water tank cover 31 is made of a heat-resistant material, so that deformation of the water tank cover 31 due to the heat of the hot air passing through the air supply port 32 can be avoided.

FIG. 5 shows a second embodiment of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Only different parts will be described. . In this embodiment, a bellows 51 having an upper portion 51b extending from the lower portion 51a to the drum 11 side is extended to the laundry entrance 36.
In this way, the bellows 51 fits into the space between the front part 1a of the outer box 1 and the front part of the water tank 2 in which the upper part is wider than the lower part. The mating member connected to 51, in this case, the water tub cover 52 can be connected to the laundry entrance / exit 36 of the outer box 1 and the water tub 2 while keeping the flat.

Further, in this case, the air supply port 53 is formed by an opening frame 54 made of a heat-resistant material on the upper part 51a of the bellows 51.
By using the dimension of the upper portion 51a extending longer than 1a, the air supply port 53 can be formed there, so that the entire depth dimension does not need to be excessively extended, and the overall depth dimension can be more reliably reduced. can do.

The motor 8 includes a rotor 10 having a stator 9
May be an inner rotor type located inside,
Further, the rotational power of the motor 8 may be transmitted to the drum 11 indirectly via a belt transmission mechanism or the like instead of directly as described above. In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0041]

The present invention is as described above.
The following effects are obtained. According to the drum-type washing machine of claims 1 to 3, although the drum is in a forwardly inclined state, the protrusion of the lower part of the front part of the door or the outer box according to the inclination of the front part of the drum is suppressed, In addition, since the weight of the opened door in the closing direction is reduced, the overall depth dimension can be reduced, and the door does not close by its own weight, thereby stabilizing the open state of the door. So that the door does not obstruct the loading and unloading of laundry.

According to the drum type washing machine of the fourth aspect, the visibility of the inside of the drum, the ease of taking in and out of the laundry, and the like are actually better obtained, and the overall depth dimension is reduced. And stabilization of the open state of the door can be reliably achieved.

According to the drum type washing machine of the fifth aspect, the overhang of the lower part of the outer box according to the inclination of the front part of the drum can be further suppressed, and the reduction of the overall depth dimension can be more reliably achieved. be able to.

According to the drum type washing machine of the sixth aspect, the water tank cover fits in a space between the front part of the outer box and the front part of the water tank, the space being wider than the lower part, and the mating part connected to the water tank cover. The laundry doorway of the outer box and the water tub can be connected without changing the members. According to the drum-type washing machine of the seventh aspect, since the air supply port for supplying hot air can be formed in the upper portion extending longer than the lower portion of the water tank cover, the overall depth dimension can be further reduced. Can be reliably achieved.

According to the drum type washing machine of the eighth aspect, it is possible to avoid deformation of the water tank cover due to the heat of the hot air passing through the air supply port.

According to the drum-type washing machine of the ninth aspect, the bellows fits in the space between the front part of the outer box and the front part of the water tank, where the upper part is wider than the lower part. The laundry doorway of the outer box can be connected to the water tub without any change.

According to the drum type washing machine of the tenth aspect, since the air supply port for supplying hot air can be formed in the upper portion extending longer than the lower portion of the bellows, the overall depth dimension can be reduced. Can be more reliably achieved.

[Brief description of the drawings]

FIG. 1 is an overall longitudinal side view showing a first embodiment of the present invention.

FIG. 2 is an overall front view.

FIG. 3 is a diagram showing a viewing angle of a user with respect to the inside of the drum for each inclination angle of a front portion of the drum.

FIG. 4 is a diagram showing various performances based on the inventor's experiments for each inclination angle of the front surface of the drum.

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

[Explanation of symbols]

1 is an outer box, 1a is a front part of the outer box, 2 is a water tank, 8 is a motor, 11 is a drum, 11a is a front part of the drum, 30 is a hot air generator, 31 is a water tank cover, 31a is a lower part of the water tank cover, 31b is the upper part of the aquarium cover, 32 is the air supply port, 36
Is a laundry doorway, 37 is a door, 44 is a vertical surface, θ1 is the inclination angle of the front of the drum, θ2 is the inclination of the front of the outer box, 51 is bellows, 51a is the lower part of the bellows, 51b is the upper part of the bellows. , 52 indicate a water tank cover, and 53 indicates an air supply port.

Continuation of the front page F term (reference) 3B155 AA25 BA12 BA18 BB02 BB18 CA02 CB06 CB07 CB64 DA01 DA05 DD05 HB04 MA01 MA02 MA05

Claims (10)

[Claims] 1. An outer box having a laundry doorway and a door for opening and closing the door at the front surface, a water tank disposed inside the outer box, and a tilted state in which the axial direction rises forward inside the water tank. A drum that is rotatably disposed and stores laundry to be thrown in from the laundry doorway; and a motor that rotationally drives the drum, wherein the door is inclined at a different angle from a front surface of the drum. A drum-type washing machine characterized by having been made. 2. The drum type washing machine according to claim 1, wherein the front part of the outer box is inclined at an angle different from that of the front part of the drum together with the door. 3. The drum type washing machine according to claim 2, wherein the inclination angle of the front part of the outer box is smaller than the inclination angle of the front part of the drum. 4. The inclination angle of the front part of the drum is 5 to 20 °.
4. The drum type washing machine according to claim 3, wherein the inclination angle of the front portion of the outer box is set to 3 to 15 degrees, which is smaller than the angle by 2 degrees or more. 5. The drum type washing machine according to claim 2, wherein a vertical surface is formed in a portion of the front surface of the outer box below the door. 6. The tank according to claim 2, wherein the tank is also provided with a forwardly inclined state, and a tank cover is provided at a front portion of the tank so that an upper portion extends from a lower portion to a laundry entrance side longer than a lower portion. Drum type washing machine. 7. The drum type washing machine according to claim 6, further comprising a hot air generating device for generating hot air, wherein an air supply port for supplying the hot air into the drum is formed at an upper portion of the water tank cover. 8. The drum type washing machine according to claim 7, wherein the water tank cover is made of a heat resistant material. 9. The drum-type washing machine according to claim 2, wherein the water tub is also provided with a front-up inclined state, and a bellows extending from the lower portion to the water tub side so as to extend upward from the lower portion is connected to the laundry entrance. Machine. 10. A hot air generator for generating hot air,
10. The drum type washing machine according to claim 9, wherein an air supply port for supplying the hot air into the drum is formed above the bellows.