JP2005137641A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing machine for which the putting in/taking out of laundry to the rotary drum can easily be performed. <P>SOLUTION: A laundry inlet/outlet 11 which is provided on a water tub 3 is formed in such a manner that the central position may be located at a position offset upward from the rotational axis of the rotary drum 5. Then, a door body 8 is provided in such a manner that the central position may approximately be adjusted to the central position of the laundry inlet/outlet 11 and confronted with the laundry inlet/outlet 11. Thus, the laundry putting in/taking out work to/from the rotary drum 5 by opening the door body 8 is facilitated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a drum-type washing machine for washing laundry stored in a rotating drum by rotationally driving a rotating drum disposed in a water tank.

  An example of a conventional structure of a drum type washing machine is shown in FIG. As shown in the figure, a rotating drum 51 having a large number of through holes 52 formed in the peripheral surface is disposed in a water tub 53 supported by a suspension structure in a washing machine casing 57. The rotating drum 51 is a drum drive motor 55. Is driven by rotation. By opening a door body 54 that can be freely opened and closed on the front side of the washing machine casing 57, the laundry can be taken in and out of the rotary drum 51 through the laundry entrance 58 provided in the front of the water tank 53. Yes.

When the door body 54 is opened, laundry is put into the rotating drum 51, and detergent is added to start the operation, water is supplied into the water tank 53, and the supplied water passes through the through-hole 52 and the rotating drum 51. The required amount of water is also supplied. When the rotary drum 51 is rotationally driven by the drum drive motor 55 at a predetermined rotational speed, the laundry stored in the rotary drum 51 is hooked on the stirring protrusion 56 provided on the inner peripheral surface of the rotary drum 51 and rotated in the rotational direction. When the laundry is lifted and dropped from an appropriate height, washing is performed by applying a tapping wash action to the laundry. After this washing process, the dirty washing water is drained, and the rinsing process is performed using newly supplied water. When the rinsing process is completed, the rotating drum 51 is rotated at a high speed, and the dehydrating process is performed. These steps are automatically executed based on a predetermined control procedure.
JP 09-215893 (pages 3 to 5, FIG. 1)

  In a conventional drum-type washing machine, the center of the laundry doorway and the center of the door body are substantially aligned on the axis of the rotating drum, and the opening diameter of the laundry doorway formed on the front side of the aquarium is rotating. It is formed smaller than the diameter of the drum. The diameter of the rotating drum should be as large as the space available, but the opening diameter of the laundry entrance / exit has an optimum diameter corresponding to the diameter of the opening / closing opening of the washing machine casing opened by the door body. The opening diameter corresponding to the diameter of the door body is formed for reasons such as limiting the installation location of the drum type washing machine by increasing the size.

  In this way, the center of the laundry doorway and the center of the door body are arranged on the axis of the rotary drum so that the center of the door is substantially coincident, and the opening diameter of the laundry doorway is formed smaller than the diameter of the rotary drum. When the body was opened, there was a blind spot on the front side of the rotating drum, and there was a problem that it was easy to forget to take out the laundry present, and there was a problem that it was difficult to take out the laundry from the rotating drum.

  An object of the present invention is to provide a drum-type washing machine having a structure that facilitates taking in and out of laundry from a laundry entrance which must be formed smaller than the diameter of a rotating drum.

  In order to achieve the above object, a drum type washing machine according to the present invention accommodates a rotating drum formed in a bottomed cylindrical shape in a bottomed cylindrical water tank body so that both open end sides are in the same direction. And the opening end of the water tub body is closed by a water tank lid body having a center that is eccentric from the center axis of the rotating drum upward and having a diameter smaller than the opening diameter of the rotating drum and opening the laundry entrance / exit. A water tub unit configured by connecting a motor to the rotating shaft of the washing machine is disposed in the washing machine casing, and a door body that is openable and closable with a center position substantially coincided with a center position of the laundry doorway in the washing machine casing. Is provided.

  According to the above configuration, the rotating drum is accommodated substantially concentrically in the water tub, and the laundry doorway provided in the water tub is formed with its center deviated upward from the center of the rotating drum, and is provided in the washing machine casing. The door is provided with the laundry doorway approximately in the center, so that when the door is opened and the laundry is taken in and out of the rotary drum through the laundry doorway, the inside of the rotary drum is looked down from above. The lower part in the rotating drum is easy to see from the direction of the user's line of sight, and the upper part in the rotating drum is easy to see because the center of the laundry doorway and the door body is eccentric upward. Therefore, it is difficult to generate a blind spot in the line of sight when looking into the rotating drum from the door body, and it is possible to configure a drum-type washing machine that is easy to use without forgetting to take out the laundry at the blind spot position.

  The effect by the said structure becomes more remarkable in the structure arrange | positioned in the water tank in which the direction of a rotating shaft is inclined to the inclination angle which the opening end of a rotating drum becomes upward on the front side.

  In addition, it is desirable to provide a biting prevention protrusion protruding toward the inside of the rotating drum at the peripheral portion of the portion covering the opening end of the rotating drum of the laundry entrance and exit, and the laundry partially protruding from the opening end of the rotating drum. It is possible to prevent an object from being caught between the rotating drum and the water tank.

  According to the present invention, even in a door body with a limited opening diameter and a laundry doorway with an opening diameter corresponding to the door body, the number of blind spots in the rotary drum having a larger opening diameter is reduced. Therefore, it is possible to construct a drum-type washing machine that is easy to use and rarely causes forgetting to take out the laundry.

  FIG. 1 shows a configuration of a main part of a drum-type washing machine 1 according to an embodiment. A water tank 3 is supported in a washing machine housing 2 by a suspension structure (not shown), and the water tank 3 has a bottomed cylindrical shape. The rotating drum 5 formed in the above is arranged with its rotational axis direction R inclined from the horizontal direction H to an angle θ.

  The rotating drum 5 has a bottomed cylindrical opening side on the front side of the washing machine housing 2 and a bottom surface on the back side of the washing machine housing 2 so that the rotation axis R is from the front side to the back side. It is arranged in the water tank 3 so as to be inclined downward at an angle θ and is driven to rotate by a drum drive motor 4 attached to the back surface of the water tank 3. The water tank 3 is configured by joining a water tank lid 3b having a laundry entrance 11 for taking in and out the laundry from the rotating drum 5 to the opening end of a water tank body 3a formed in a bottomed cylindrical shape, A door body 8 is provided on an inclined surface 2a formed on the front side of the washing machine casing 2 so as to face the laundry entrance 11 and can be opened and closed. Laundry can be taken in and out of the rotating drum 5 by opening the door body 8, and the inside of the rotating drum 5 is seen through from the outside by forming a part or the whole of the door body 8 with a transparent body. Can do. A bellows 15 formed of a flexible elastic body is disposed around the laundry entrance 11, and when the door body 8 is closed, one end of the bellows 15 comes into pressure contact with the inner surface of the door body 8 to rotate the rotating drum 5. The accompanying water is prevented from jumping out of the water tank 3.

  As described above, the rotary drum 5 is inclined, and the door body 8 is provided in the washing machine casing 2 so as to face the opening, thereby opening the door body 8 and putting laundry into and out of the rotary drum 5. It is not necessary to bend down at the time of the work to be performed, and it is not necessary to secure a sufficient space in front of the drum type washing machine 1, and it is narrow such as a toilet where a conventional vertical washing machine is installed. The drum type washing machine 1 can be installed in a space, and the drum type washing machine 1 can be configured to be suitable for a small Japanese living environment.

  The laundry entrance / exit 11 is formed such that the center position thereof is decentered upward from the rotational axis R of the rotary drum 5. A door body 8 is provided so as to face the laundry entrance 11 and the center position thereof is substantially coincident with the center line of the laundry entrance 11. The diameter of the door body 8 has an optimum dimension due to restrictions on the installation place of the drum type washing machine 1 and is smaller than the opening diameter of the rotating drum 5. Further, since the diameter of the laundry entrance / exit 11 is also set corresponding to the diameter of the door body 8, it is also made smaller than the opening diameter of the rotating drum 5. As described above, when the laundry doorway 11 and the door body 8 are provided at positions where their center positions are offset upward from the rotational axis of the rotary drum 5, the door body 8 is opened and the laundry doorway 11 passes through the laundry doorway 11. When looking inside, the number of blind spots is reduced, and the laundry stored in the rotating drum 5 can be seen over a wide range, so that it is difficult to forget to take out the laundry. In particular, as in the drum-type washing machine 1 according to the present embodiment, in a configuration in which the rotating drum 5 is inclined and the door body 8 is provided on the inclined surface 2 a corresponding to the inclination angle of the rotating drum 5, a wider range. The inside of the rotating drum 5 can be seen.

  As a result of various investigations and studies by the inventors of the present application, the conclusion that θ = 30 ± 5 degrees has been obtained. Even if there is a height difference from a child (excluding infants) to an adult or a disabled person who uses a wheelchair by arranging the rotating drum 5 at an inclination angle θ = 30 ± 5 degrees, the laundry It is possible to obtain a state in which the operation of loading and unloading is most easily performed. In addition to the inclined arrangement of the rotating drum 5, the center positions of the laundry entrance 11 and the door body 8 are biased upward from the rotation axis R of the rotating drum 5. In addition, it becomes easy to observe the operation state in each process of washing from the transparent door body 8.

  However, if the opening diameter of the laundry entrance / exit 11 is smaller than the opening diameter of the rotating drum 5 and the center position of the laundry entrance / exit 11 is biased to one side from the rotation axis R of the rotating drum 5, the rotating drum 5 is illustrated as shown in the figure. The lower end of the water tank lid 3b overlaps the opening end of the water tank. When a part of the laundry jumps out from the opening end of the rotating drum 5 in this state, the part popping out with the rotation of the rotating drum 5 is caught between the rotating drum 5 and the water tank lid 3b. There is.

  In order to prevent this laundry from being caught, a biting prevention protrusion 16 protruding toward the inside of the rotating drum 5 is formed in a crescent shape at a portion overlapping the opening end of the rotating drum 5 of the water tank lid 3b. Is provided.

  FIG. 2 shows the water tank lid 3b as viewed from the inside. The laundry entrance 11 is formed at a position offset upward from the center (center of the rotating drum 5). The biting prevention protrusion 16 centering on the direction opposite to the direction is provided in a crescent shape so as to protrude into the rotating drum 5.

  The presence of the biting prevention protrusion 16 prevents a part of the laundry that has jumped out of the rotating drum 5 from entering between the rotating drum 5 and the water tank lid 3b, thereby decentering the position where the laundry doorway 11 is formed. It is possible to prevent the laundry from being bitten.

  When the rotating drum 5 is inclined as described above, the work of putting in and out the laundry is facilitated, and the water stored in the rotating drum 5 is accumulated on the back side, so that a deep water storage state can be obtained even with a small amount of water. On the other hand, the laundry stored in the rotating drum 5 gathers in the lower part on the bottom surface side, which is the lowest position, and if the rotating drum 5 is rotated, the laundry is further collected on the bottom surface side. Although the problem that the action of uniformly applying the cleaning power to all the laundry by replacing the individual positions occurs is incomplete, in the drum type washing machine 1 according to the present embodiment, the rotation of the rotating drum 5 by the drum driving motor 4 is generated. The position of the laundry is changed by controlling the rotation drive, or the position of the laundry is changed by the shape of the stirring protrusion 9 provided on the inner peripheral wall of the rotary drum 5. It is configured so as.

  As described above, according to the present invention, since the center position of the laundry entrance / exit provided in the water tub is formed at a position deviated from the rotational axis of the rotary drum, the door provided at a position corresponding to the laundry entrance / exit When the door is opened, the interior of the rotating drum can be seen in a wide range, so you can fully check the state of the laundry in the rotating drum, without forgetting to take out the laundry in the blind spot. The drum-type washing machine is easy to use.

Sectional drawing which shows the principal part structure of the drum type washing machine which concerns on embodiment. The top view which shows the structure of the water tank lid body in a structure same as the above. Sectional drawing which shows the structure of the drum type washing machine which concerns on a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum-type washing machine 2 Washing machine housing | casing 3 Water tank 3a Water tank main body 3b Water tank cover body 4 Drum drive motor 5 Rotating drum 8 Door body 11 Laundry doorway 16 Catch prevention protrusion

Claims (2)

A rotating drum formed in a bottomed cylindrical shape is accommodated in a bottomed cylindrical tank body so that both opening end sides are in the same direction, and the opening end of the water tank body is centered from the central axis of the rotating drum. The water tank unit constructed by connecting the motor to the rotating shaft of the rotating drum is closed by a water tank lid body that is eccentric upward and has a diameter smaller than the opening diameter of the rotating drum. A drum-type washing machine, wherein the washing machine casing is provided with a door body that is openable and closable with a center position substantially coincident with a center position of the laundry doorway. 2. The drum type washing machine according to claim 1, wherein a biting prevention protrusion protruding toward the inside of the rotating drum is provided at a peripheral part of a part covering the opening end of the rotating drum of the laundry entrance / exit.

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