JP4389732B2 - Drum washing machine - Google Patents

Description

  The present invention relates to a drum-type washing machine including a drum that is rotatably disposed in a water tub so that a rotation axis direction is substantially horizontal or inclined.

A conventional drum-type washing machine of this type has a drum having a stirring protrusion formed in a cylindrical shape and protruding at a plurality of locations on an inner peripheral wall, and the rotation axis direction of the drum is substantially horizontal or inclined. In this way, the water tank is rotatably stored, and by rotating the drum, the laundry stored in the drum is hooked on the stirring protrusion and lifted, and the lifted laundry falls from an appropriate height. Thus, the laundry is washed and washed (see, for example, Patent Document 1).
JP 09-215894 A (pages 2 to 6, FIG. 1)

  However, such a conventional drum-type washing machine is configured to wash laundry mainly by tapping, so that the laundry is less likely to be damaged than a washing machine in which drums, which are the mainstream in the past, are arranged in the vertical direction. However, because the drum is placed sideways, when the laundry is large, the wettability of the entire clothing (sometimes the center) due to the water accumulated in the lower part of the aquarium rarely occurs. was there. In order to solve this problem, there is also a drum type washing machine in which a water tank cover that forms an opening to a drum that stores clothing is disposed on the front surface of the drum, and a water inlet is provided in the water tank cover part. .

  However, even if the water tank cover that forms the opening of the drum is provided with a water inlet only for the opening, the water does not spread sufficiently over the entire drum because the water is concentrated, so that the overall wettability of the clothing is sufficient. If the seal configuration up to the water inlet is a groove configuration, etc., the seal will not be sufficient, so the water will leak before reaching the water inlet, and the action of wetting the clothing will be satisfactory. There was a problem that could not be done.

  An object of the present invention is to solve the above-described conventional problems, and to provide a drum type washing machine having a water injection structure in which the wettability of laundry is sufficiently achieved.

In order to solve the above-described conventional problems, a drum type washing machine of the present invention includes a drum that contains clothing and has a horizontal or inclined rotation center shaft, a water tank that rotatably accommodates the drum, and a front surface of the water tank. A water tank cover that has an opening for taking in and out the clothes, a water supply valve that supplies water into the water tank, a window that covers the opening, and an inner surface of the water tank cover that communicates with the water supply valve And a bag-like member having a substantially spherical portion on the inner surface of the water tank cover, and a water supply valve on the outer periphery of the water tank cover via a hose member. A substantially cylindrical projecting portion that communicates is provided, an opening is provided in the substantially spherical portion, and an internal opening located inside the projecting portion and the bag-like member are communicated by a pipe member .

  Accordingly, when the water supply valve is energized, water is sent to the opening and discharged in a fan shape, so that the entire clothes in the drum can be evenly wetted, and uneven washing can be reduced and the cleaning power can be improved.

  The drum type washing machine of the present invention can wet the entire garment in the drum evenly, thereby reducing the unevenness of washing and improving the cleaning power.

1st invention has the drum which has the rotation center axis | shaft which accommodated clothing and was horizontal or inclined, The water tank which accommodates the said drum rotatably, The front part of the said water tank and the opening part for taking in and out of the said clothing are provided A water tank cover, a water supply valve that supplies water into the water tank, a window that covers the opening, an opening that is provided on the inner surface of the water tank cover and communicates with the water supply valve and discharges water into the drum in a substantially fan shape. Provided with a bag-like member having a substantially spherical portion on the inner surface of the water tank cover, and provided with a substantially cylindrical protruding portion communicating with a water supply valve via a hose member on the outer periphery of the water tank cover. An opening is arranged in the spherical surface portion, and the internal opening portion located inside the protruding portion and the bag-like member are communicated with each other by a pipe member . When the water supply valve is energized, water is sent to the opening and fan-shaped. Discharge and fill the entire clothing in the drum Can be wetted without, the washing unevenness is reduced, detergency can be improved, and the sealing structure is simplified water injection path from the water supply valve to the bag-like member having an opening for leaks on the way It can be reduced as much as possible, and the water injection route is easy to assemble and service.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment.

(Embodiment 1)
FIG. 1 is a schematic cross-sectional view of the drum type washing machine according to the first embodiment of the present invention, and FIG. 2 is a cross-sectional view of the main part of the drum type washing machine.

  1 and 2, a water tank 3 is suspended in a housing 2 of a drum-type washing machine 1 by a suspension structure (not shown), and a drum 4 formed in a bottomed cylindrical shape in the water tank 3. However, the axial center direction is inclined downward from the front side toward the back side, and is rotatably arranged. A water tank cover 6 that forms an opening 5 is disposed on the front side of the water tank 3, a clothing doorway leading to the opening 5 is formed, and the window 5 closes the opening 5.

  The drum 4 has a large number of through holes 8 formed in the peripheral wall thereof that communicate with the water tank 3, and is provided with stirring protrusions 9 at a plurality of positions on the inner peripheral surface. The drum 4 is rotationally driven in the forward and reverse directions by a motor 10 attached to the back side of the water tank 3. Further, a water supply valve 11 for supplying water into the water tank 3 is provided in the housing 2, and a water injection pipe 12 and a drain pipe 13 are connected to the water tank 3, and drainage is performed by controlling a drain valve (not shown). Is made.

  A bag-like member 16 having an opening 15 in a substantially spherical portion 14 is disposed on the inner surface of the aquarium cover 6, and a substantially cylindrical protrusion provided on the outer periphery of the water supply valve 11 and the aquarium cover 6. A hose member 18 communicating with the portion 17 is joined in a watertight manner, and the bag-like member 16 and an internal opening 19 located inside the projecting portion 17 of the water tank cover 6 are watertight with a pipe member 20. The water injection path 21 is formed.

  FIG. 3 is a front view of the opening 15 of the bag-like member 16 provided on the inner surface of the water tank cover 6. The vertical width on both sides of the opening 15 is formed wider than the vertical width of the central portion.

  The operation of the drum type washing machine having the above configuration will be described.

  When the window 7 is opened and laundry and detergent are put into the drum 4 and the operation of the drum-type washing machine 1 is started, the water supply valve 11 is energized to operate, and the water tank 3 has a water injection pipe 12 and a water injection path. A predetermined amount of water is injected from 21 at a predetermined time, and the drum 4 is rotationally driven by the motor 10 to perform the washing process. At this time, the laundry housed in the drum 4 is lifted in the rotating direction by the stirring protrusion 9 provided on the inner peripheral wall of the drum 4 by the rotation of the drum 4 and falls from the lifted appropriate height position. At the same time as the operation is repeated, the water supplied through the water injection path 21 has the opening 15 formed in the substantially spherical portion 14, so that the action of spreading the fan in the opening 15 and wetting the entire clothing is continued. Can be sufficiently wetted.

  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 in which the drum 4 is rotated at high speed. A rinsing process is performed by injecting water from the channel 12 and the water injection path 21. In this rinsing process, similarly to the washing process, a stirring operation and a fan-shaped water pouring action are performed, rinsing is performed, water is evenly applied to the entire clothing, and the rinsing effect can be sufficiently exhibited.

Moreover, since the vertical width of both sides of the opening 15 is formed wider than the vertical width of the central portion, a large amount of water flows to both sides. As a result, a fan-like discharge shape can be formed, and the entire garment can be uniformly wetted. .

  As shown in FIG. 4, since the substantially spherical portion 14 in which the opening 15 is formed is substantially hemispherical, the opening angle α of the opening 15 can be maximized. A fan-like discharge shape that extends over the range can be formed, and the entire garment can be uniformly wetted.

  Moreover, since the middle of the water injection path 21 is formed by the hose member 18 and the pipe member 20, the seal configuration is simplified, and the assembly and service are facilitated.

  Further, the pipe member 20 communicating with the inner opening 19 inside the substantially cylindrical projecting portion 17 of the bag-like member 16 and the water tank cover 6 is formed of a material such as a flexible elastomer, thereby fitting both ends. The sealability of the part can be sufficiently secured, water leakage can be prevented in the course of the path leading to the opening 15 for discharging into the drum 4, and the wettability of the clothing can be ensured, and the fitting part is flexible. Therefore, assembly workability can be facilitated.

  As described above, in the drum type washing machine according to the present invention, water spreads in a fan shape on the clothing in the drum whose rotation center axis is horizontal or inclined, so that water can penetrate into the entire clothing, Since there is little unevenness in washing and the washing power is improved, it is useful for household, commercial washing machines, washing devices and the like having a water injection shower function.

Schematic sectional view of the drum type washing machine in the first embodiment of the present invention. Cross section of the main part of the drum type washing machine Front view of water injection route of the drum type washing machine Cross-sectional view of the main part of the water injection route

DESCRIPTION OF SYMBOLS 1 Drum type washing machine 3 Water tank 4 Drum 5 Opening part 6 Water tank cover 7 Window part 11 Water supply valve 15 Opening

Claims (1)

A drum that contains clothing and has a horizontal or inclined rotation center axis, a water tank that rotatably accommodates the drum, a water tank cover that covers the front surface of the water tank and has an opening for taking in and out the clothes, and the water tank A water supply valve for supplying water, a window covering the opening, an opening provided on the inner surface of the water tank cover and communicating with the water supply valve and for discharging water into the drum in a substantially fan shape, the water tank cover A bag-shaped member having a substantially spherical portion is disposed on the inner surface of the water tank, and a substantially cylindrical protruding portion communicating with a water supply valve via a hose member is provided on the outer periphery of the water tank cover, and an opening is formed in the substantially spherical portion. A drum-type washing machine in which an internal opening located inside the protruding portion and the bag-like member are communicated with each other by a pipe member .

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