JP2006075479A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing machine which prevents laundry from accumulating disproportionately in a lower part on the back side of a rotary drum when the rotary drum is slantingly disposed to take in and out the laundry easily. <P>SOLUTION: The drum type washing machine is equipped with the rotary drum 2 which is formed into a cylindrical shape and has the center of a rotation axis slanted upward from the back surface side to the front side, a water tank 3 including the rotary drum 2 inside, and a baffle 4 protruding on the inner peripheral surface of the rotary drum 2. The top part 4c of the baffle 4 is formed to decrease the height from the back surface side to the front side of the rotary drum 2 to the inner peripheral surface of the rotary drum 2. When the rotary drum 2 is rotated, the action to hold up the laundry diagonally to the front in the rotary drum 2 works on the laundry by forming the side surfaces 4a, 4b of the baffle 4 into a flat shape with a prescribed angle to the radial direction of the rotary drum 2. Consequently, uneven washing is eliminated, and the washing performance is improved since the laundry switches the position in the front and the back. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a drum-type washing machine in which a rotary drum is disposed in a water tub so that its rotational axis is inclined upward from the back side to the front side.

In a drum-type washing machine in which a rotating drum is disposed in a water tub so that the rotation axis direction thereof is horizontal, the laundry stored in the rotating drum is rotated by rotating the rotating drum formed in a cylindrical shape. The laundry is hit by a baffle, which is a protrusion provided on the inner peripheral surface of the rotating drum, and then lifted, and the laundry is beaten and washed by dropping from an appropriate height (for example, see Patent Document 1). .
JP-A-9-215894

  As described above, since the drum type washing machine mainly washes laundry by tapping, it has a structure that is less likely to damage the laundry than a washing machine in which a rotating drum, which is the mainstream from the past, is arranged in the vertical direction. Since the rotating drum is placed sideways, the laundry is put in and out from the front side, and it has become an unsuitable structure for the pain associated with bending the waist and the narrow housing situation in Japan. In order to solve the problem of the drum type washing machine, the rotation axis is inclined so that the opening side of the rotating drum faces upward, so that the laundry can be easily put in and out and can be arranged in a narrow space. It can be configured as a drum-type washing machine.

  However, if the rotating drum is tilted from the horizontal direction, the laundry housed in the rotating drum at the time of washing is biased toward the back side of the rotating drum. Therefore, in the baffle of the conventional structure, the laundry is properly lifted and dropped. There was a problem in that the action of tapping was not satisfactory and stirring was insufficient, so that the rate of wetting of the laundry was slow. In addition, since the laundry housed in the rotating drum is biased toward the back side of the rotating drum and stirred when drying, the baffle having the conventional structure has a problem that the finished finish of the laundry becomes worse. It was.

  The object of the present invention is that even in a structure in which the rotating drum is inclined, the laundry is sufficiently agitated during washing, the laundry is not compressed even during drying, spread and agitated, and the finished finish after drying. Another object of the present invention is to provide a drum-type washing machine having a baffle structure that improves the efficiency.

  In order to solve the above-described conventional problems, a drum-type washing machine of the present invention includes a rotary drum that is formed in a cylindrical shape and whose rotation axis is inclined upward from the back side to the front side, and includes the rotary drum. And a baffle protruding from the inner peripheral surface of the rotating drum, and the top of the baffle is higher than the inner peripheral surface of the rotating drum from the back side to the front side of the rotating drum. The side surface of the baffle is formed in a planar shape having a predetermined angle with respect to the radial direction of the rotating drum.

  Accordingly, when the rotating drum is rotated, the laundry is lifted obliquely forward in the rotating drum at the time of washing, so that it may be biased to a lower back side position in the inclined rotating drum. In addition, the front / rear position of the laundry is improved, and even when the amount of the washing liquid is small, all the laundry is evenly immersed in the washing liquid, so that there is little unevenness in washing and the washing performance can be improved.

  According to the present invention, in a drum-type washing machine in which a rotating drum is arranged at an inclination to facilitate taking in and out of laundry, the laundry is biased toward the back side in the rotating drum at the time of washing, and the cleaning performance is deteriorated. The problem is that the top of the baffle is formed so that its height decreases from the inner surface of the rotating drum toward the front side of the rotating drum, and the side surface of the baffle is in the radial direction of the rotating drum. A drum-type washing machine that is solved by the flat configuration having a predetermined angle, has less unevenness in washing, and has improved washing performance can be provided.

  A drum-type washing machine according to a first aspect of the present invention is a cylindrical drum, the rotation axis of which is inclined upward from the back side to the front side, a water tub containing the rotation drum, and the rotation drum. A baffle that protrudes from the inner peripheral surface, and the top of the baffle is formed such that the height of the baffle decreases from the inner peripheral surface of the rotating drum toward the front side from the back side of the rotating drum. The side surface of the baffle is a flat surface having a predetermined angle with respect to the radial direction of the rotating drum. When the rotating drum is rotated, the laundry is lifted obliquely forward in the rotating drum during washing. Because it works, it will not be biased to the low back side position in the inclined rotating drum, the front and rear position of the laundry will be changed better, and all the laundry will be universal even when there is little washing liquid Since immersed in Ku washing liquid, it is possible to improve little washing uneven, the cleaning performance.

  In the drum type washing machine of the second invention, in particular, the top of the baffle of the drum type washing machine of the first invention has the baffle positioned at the lowermost part of the rotating drum, and the rotating drum Since the volume in the rotating drum can be secured by forming the height from the front side to the back side, the laundry can be moved optimally.

  The drum type washing machine according to the third aspect of the invention is, in particular, the rear end of the baffle of the drum type washing machine according to the first or second aspect of the invention being in contact with the back side of the rotary drum, so that the washing on the back side of the rotary drum is performed. There is no hindrance to the object being caught on the rear edge of the baffle and moving to the front side, the change of the position of the laundry is improved, and the cleaning power can be improved.

  In the drum type washing machine of the fourth invention, in particular, a substantially rectangular parallelepiped stirring protrusion is formed from the back side to the front side at the top of the baffle of the drum type washing machine of any one of the first to third inventions. Therefore, even when a small amount of laundry is being stirred, the agitation protrusions can reliably catch the laundry so that the laundry can be prevented from floating and spinning around. By forming the stirring protrusion in this way, it is possible to achieve both the action of lifting the laundry diagonally forward in the rotating drum and the action of reliably stirring a small amount of laundry. .

  In the drum-type washing machine of the fifth invention, in particular, the baffle of the drum-type washing machine of the fourth invention has a hollow interior, and a plurality of conduction holes are formed on the top surface of the stirring protrusion. Thus, when the baffle is below the drum during washing, the washing liquid is stored in the hollow interior, and when the baffle moves upward while rotating, the washing liquid collects in the stirring protrusion and is washed in the plurality of conduction holes. The liquid can be concentrated and protruded, whereby a large amount of the washing liquid can be supplied from above the laundry, and the wetting speed of the laundry can be increased, and the cleaning power can be further improved.

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

(Embodiment 1)
FIG. 1 shows a longitudinal sectional view of an essential part of a drum type washing machine 1 according to a first embodiment of the present invention.

  In FIG. 1, a water tank 3 is suspended in a housing 6 by a suspension structure (not shown), and a rotating drum 2 formed in a bottomed cylindrical shape in the water tank 3 has its axial center direction from the back side to the front side. It is arranged so as to be inclined upward. A laundry doorway 11 leading to the opening end of the rotary drum 2 is formed on the front side of the water tub 3, and a door 9 that closes an opening provided on an upward inclined surface formed on the front side of the housing 6 so as to be openable and closable. By opening, the laundry can be taken in and out of the rotary drum 2 through the laundry entrance 11. Since the door 9 is provided on the upward inclined surface, the work for putting in and out the laundry can be carried out without bending the waist, and generally the workability of the drum type washing machine for taking in and out the laundry from the sideways opening is provided. The evil has been improved.

  The rotating drum 2 is formed with a large number of through holes 8 communicating with the water tank 3 on its peripheral surface, and baffles 4 are provided at a plurality of positions on the inner peripheral surface. The rotating drum 2 is rotationally driven in the forward and reverse directions by a motor 7 attached to the back side of the water tank 3. In addition, a water injection pipe 12 and a drain pipe 13 are connected to the water tank 3, and water injection and drainage into the water tank 3 is performed by controlling a water injection valve and a water discharge valve (not shown).

  When the door 9 is opened and laundry and detergent are put into the rotating drum 2 to start the operation of the drum-type washing machine 1, a predetermined amount of water is injected into the water tank 3 from the water injection pipe 12. The rotating drum 2 is driven to rotate and the washing process is started. By the rotation of the rotating drum 2, the laundry accommodated in the rotating drum 2 is lifted in the rotating direction by the baffle 4 provided on the inner peripheral surface of the rotating drum 2, and agitated by dropping from the lifted appropriate height position. Since the operation is repeated, the laundry has the effect of tapping and washing. After the required washing time, the dirty washing liquid is discharged from the drain pipe 13, and the washing liquid contained in the laundry is dehydrated by a dehydrating operation that rotates the rotating drum 2 at a high speed. Rinsing is performed by pouring water from the road 12. In this rinsing process, the laundry stored in the rotary drum 2 is rinsed by repeating the stirring operation of being lifted and dropped by the baffle 4 by the rotation of the rotary drum 2. After the rinsing process, the rinsing liquid is discharged from the drain pipe 13, and the rinsing liquid contained in the laundry is dehydrated by the dehydrating operation of rotating the rotary drum 2 at a high speed, and the washing process is completed.

  Here, in the configuration in which the rotary drum 2 is inclined from the horizontal direction as in the first embodiment, the laundry is on the back side of the rotary drum 2 even if the laundry is stirred by the rotation of the rotary drum 2. Therefore, stirring is not sufficiently performed. That is, it is necessary to perform a stirring action of moving the laundry from the back side to the front side in the rotating drum 2 as the rotating drum 2 rotates. For this purpose, the shape of the baffle 4 provided in the rotary drum 2 is important.

  2A is a plan view of the baffle 4 in the drum type washing machine of the first embodiment, FIG. 2B is a side view of the baffle 4, and FIG. 2C is a front view of the baffle 4. Show.

  The top 4c of the baffle 4 is associated with the height of the baffle 4 so that its height decreases from the back side to the front side. The side surfaces 4a and 4b of the baffle 4 have a predetermined angle symmetrically with respect to the radial direction of the rotating drum 2 (upward direction in FIG. 2C) and are formed in a planar shape. Thereby, the width between the intersecting lines where the left and right side surfaces 4a, 4b and the rotating drum 2 intersect becomes narrower from the back side of the rotating drum 2 toward the front side. At this time, the front end portion 4d and the rear end portion 4e of the baffle 4 have a substantially isosceles triangle shape, and the relationship is similar to the front edge portion 4d smaller than the rear edge portion 4e.

  As shown in FIG. 1, when the rotating drum 2 having the baffle 4 configured as described above attached to a plurality of locations (for example, 3 locations) on the inner peripheral surface is rotated clockwise as viewed from the front in a washing or rinsing process, The laundry that tends to be biased toward the lower position on the back side in the inclined rotating drum 2 can be lifted and moved from the back side to the front side along the side surface 4a. However, the laundry is sufficiently agitated without being biased toward the lower side on the back side of the rotary drum 2, and the laundry is easily mixed and mixed, so that the washing effect is not reduced.

  Also, when the amount of laundry is large, most of the laundry is located above the surface of the washing liquid, so there are many parts that are not soaked in the washing liquid, so that all the laundry can be immersed evenly. In order to be able to do so, it is necessary to stir so that the place of the laundry is sufficiently changed. If it is the shape of the said baffle 4, since the replacement | exchange of the position of the laundry is fully made, there is no washing nonuniformity and it can improve cleaning power.

  Further, as shown in FIG. 1, the top 4 c of the baffle 4 has a height from the front side to the back side of the rotary drum 2 with respect to the horizontal plane X with the baffle 4 positioned at the lowermost part of the rotary drum 2. Is formed to be low. Thereby, since the volume of the baffle 4 is not increased, the volume in the rotating drum can be secured, and the movement of the laundry can be optimized. Further, a heavy object such as a motor 7 is attached to the back side of the water tank 3, and the center of gravity of the entire water tank 3 is from the rear. With this structure, when the laundry is on the front side of the rotating drum 2, when the laundry is on the front side, the swing of the aquarium 3 increases. On the other hand, if the laundry is on the center of gravity (the rear side of the rotating drum 2) Can be reduced and vibration can be reduced. That is, the top 4c of the baffle 4 is formed so that the height decreases from the front side to the back side of the rotary drum 2 with respect to the horizontal plane X in a state where the baffle 4 is positioned at the lowermost part of the rotary drum 2. Thus, during the dehydration, the laundry is not excessively biased toward the front side of the rotating drum 2 and can be appropriately scattered before and after the rotating drum 2, so that low vibration can be realized.

  Further, the rear edge 4e of the baffle 4 is attached in contact with the back side of the rotary drum 2, thereby preventing the laundry on the back side of the rotary drum from being caught by the rear edge of the baffle and moving to the front side. In this way, the position of the laundry can be changed and the cleaning power can be improved.

(Embodiment 2)
FIG. 3A is a plan view of the baffle 14 in the drum type washing machine of the second embodiment, FIG. 3B is a side view of the baffle 14, and FIG. 3C is a front view of the baffle 14. . Since other configurations and operations are the same as those of the first embodiment, the same reference numerals are given and description thereof is omitted.

  As shown in FIGS. 3A, 3B, and 3C, a substantially rectangular parallelepiped stirring protrusion 14c is formed from the back side to the front side at the top where the left and right side surfaces 14a, 14b of the baffle 14 intersect. Yes.

  In this way, when the left and right side surfaces 14a, 14b of the baffle 14 intersect with each other, the stirring protrusion 14c having a substantially rectangular parallelepiped shape is formed from the back side to the front side, so that when stirring a small amount of laundry, the stirring protrusion 14c. However, when the laundry is reliably hooked, the laundry does not float up and runs idle, and a reliable cleaning power can be ensured even when the amount of laundry is small. As a result, it is possible to achieve both the action of the laundry being lifted diagonally forward in the rotary drum 2 and the action of reliably stirring a small amount of laundry.

  In the above-described configuration, the stirring protrusion 14c is formed in a substantially rectangular parallelepiped shape, but may not be in a substantially rectangular parallelepiped shape, as long as the inclination is steeper than the side surfaces 14a and 14b.

(Embodiment 3)
4A is a plan view of the baffle 24 in the drum-type washing machine of the third embodiment, FIG. 4B is a side view of the baffle 24, and FIG. 4C is a front view of the baffle 24. . Other configurations and operations are the same as those in the first embodiment and the second embodiment, and thus the same reference numerals are given and description thereof is omitted.

  As shown in FIGS. 3A, 3B, and 3C, a substantially rectangular parallelepiped stirring protrusion 24c is formed from the back side to the front side at the top where the left and right side surfaces 24a, 24b of the baffle 24 intersect. Yes. The inside of the baffle 24 has a hollow shape, and a plurality of conduction holes 24f are formed on the top surface of the stirring protrusion 24c and communicated with the hollow portion inside.

  According to this configuration, when the baffle 24 is below the drum during washing, the washing liquid is stored inside the hollow, and when the baffle 24 moves upward while rotating, the washing liquid gathers in the stirring protrusion 24c, The washing liquid can be concentrated and protruded into the plurality of conduction holes 24f. Thereby, it becomes possible to supply a large amount of washing liquid from above the laundry, thereby increasing the wetting speed of the laundry and further improving the cleaning power.

  In the above configuration, the conduction hole 24f is formed only on the top surface of the stirring protrusion 24c. However, if the stirring protrusion 24c has a conduction hole, a conduction hole may also be formed around the stirring protrusion 24c. .

(Embodiment 4)
In the first to third embodiments, the drum type washing machine has been described. However, the present invention can obtain an effective effect even for a drum type washing machine having a drying function.

  Hereinafter, an embodiment in a drying process in the drum type washing and drying machine will be described with reference to FIGS. 1 and 2.

  In FIG. 1, after the washing process, warm air is blown into the rotating drum by a drying fan and a heater (not shown), and the rotating drum 2 is driven to rotate by the motor 7 to start the drying process. By the rotation of the rotating drum 2, the laundry accommodated in the rotating drum 2 is lifted in the rotating direction by the baffle 4 provided on the inner peripheral surface of the rotating drum 2, and agitated by dropping from the lifted appropriate height position. Since the operation is repeated, the laundry is dried while water is evaporated by warm air.

  At this time, since the laundry is lifted obliquely forward in the rotating drum 2, the laundry is not biased to a low back side position in the inclined rotating drum, and the laundry Is spread over the front and rear of the rotary drum 2 and stirred, so that the finish after drying can be improved.

  As described above, the drum-type washing machine according to the present invention is a drum-type washing machine in which the rotating drum is arranged at an inclination so that the laundry can be easily taken in and out. The laundry is biased toward the back side in the rotating drum at the time of washing. The problem that the cleaning performance deteriorates is that the top of the baffle is formed so that its height decreases from the inner surface of the rotating drum toward the front side of the rotating drum from the rear side of the rotating drum. Is solved by a flat configuration having a predetermined angle with respect to the radial direction of the rotating drum, and there is less unevenness in washing and it is possible to improve the washing performance. It can also be applied to a drum-type washing and drying machine having a function.

The principal part longitudinal cross-sectional view of the drum type washing machine 1 in the 1st Embodiment of this invention. (A) Plan view of baffle in the drum type washing machine (b) Side view of the baffle (c) Front view of the baffle (A) Plan view of baffle in drum type washing machine of second embodiment (b) Side view of the baffle (c) Front view of the baffle (A) Plan view of baffle in drum type washing machine of third embodiment (b) Side view of the baffle (c) Front view of the baffle

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum type washing machine 2 Rotating drum 3 Water tank 4 Baffle 4a Side surface 4b Side surface

Claims (5)

A rotating drum formed in a cylindrical shape and whose rotation axis is inclined upward from the back side to the front side, a water tank containing the rotating drum, and a baffle provided protruding from the inner peripheral surface of the rotating drum. And the top of the baffle is formed such that the height of the baffle decreases from the back side to the front side of the rotating drum with respect to the inner peripheral surface of the rotating drum, and the side surface of the baffle is A drum-type washing machine characterized by having a flat shape having a predetermined angle with respect to the radial direction. The top of the baffle is formed such that the height of the baffle is reduced from the front side to the back side of the rotating drum with respect to a horizontal plane in a state where the baffle is positioned at the lowermost part of the rotating drum. The drum type washing machine according to claim 1. The drum type washing machine according to claim 1, wherein a rear end portion of the baffle is in contact with a back surface of the rotating drum. The drum type washing machine according to any one of claims 1 to 3, wherein a stirring protrusion having a substantially rectangular parallelepiped shape is formed on the top of the baffle from the back side to the front side. 5. The drum type washing machine according to claim 4, wherein the baffle has a hollow shape inside and a plurality of conduction holes are formed on the top surface of the stirring protrusions.

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