JP2006068054A - Drum washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lightweight drum washing machine facilitating fixing of a water tub during transportation or moving. <P>SOLUTION: A water tub unit 5 which comprises a rotary drum 2 journaled to a bearing 68 fixed to the back of the water tub 3 and a drum driving motor 7 rotatingly driving the rotary drum 2 is provided with an upper part support metal fitting 75 and a back lower part support metal fitting 51 fixed to the bearing 68. The back face of a washing machine housing 6 can be fixed with screws to the upper part support metal fitting 75 and the back face lower part support metal fitting 51 via a detachable upper part fixing metal 83 and a detachable lower part fixing metal 54 respectively; and the back face lower part metal fitting 40 of the fitting part of the lower part fixing metal fitting 54 is provided with a regulation part 41b regulating its movement in the front/rear/left/right relative to a support base 73, which forms the base part 6a of the washing machine housing 6. Even if the water tub unit is thus fixed with screws in the transportation and receives a large vibration and impact in the moving, this constitution can dispense with the thickening of the wall of the housing so as to provide the lightweight drum washing machine having a superior portability. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a drum-type washing machine having a vibration control structure that suppresses vibration associated with rotation of a rotating drum by supporting a water tank containing the rotating drum in a casing with a suspension structure.

  In a drum-type washing machine, a water tub that houses a rotating drum with its rotation axis direction inclined in the horizontal direction or upward from the horizontal direction is disposed in the housing, so that the laundry and the supplied water can flow downward. Tend to be biased, and vibration associated with rotation of the rotating drum is likely to occur. In particular, when the laundry is deviated to one side during dehydration in which the rotating drum is rotated at a high speed, a large vibration is generated. In order to prevent such vibration from being transmitted to the washing machine casing, the water tub containing the rotating drum is weight-supported in the washing machine casing by the vibration proof damper and supported by being suspended by the spring member.

  If the aquarium containing the rotating drum is in a state that it is floatingly supported in the washing machine casing, the aquarium will be subjected to vibrations and shocks during movement such as shipment from the factory or delivery to the home. It becomes very unstable in the washing machine housing. In addition, since the rotating drum housed in the water tank is made of metal and has a large weight and a single-support structure in which the rotating shaft is attached to one end, the rotating shaft and the drum may be deformed by vibration or impact.

Therefore, when the drum type washing machine is moved to the installation location, the water tank is fixed to the washing machine casing so that the position of the water tank does not move in the washing machine casing due to vibration or impact. A machine is known (see, for example, Patent Document 1).
JP-A-10-263276

  However, the fixing structure at the time of the movement of the aquarium according to the prior art as disclosed in the above-mentioned Patent Document 1 is provided with a fixing member in each of a plurality of holes formed on the back surface of the washing machine casing as necessary. A screw can be fixed between the back surface of the washing machine casing and the water tank.

  However, since the load applied to the fixing member due to vibration and impact is large, the load applied to the back surface of the washing machine housing fixed with screws is also increased, and the housing is likely to be deformed. For this reason, in order to secure the strength of the back surface of the washing machine housing, it is necessary to increase the thickness of the back member, and also to secure the strength of the mounting portion on the back surface of the housing, It was necessary to raise. When such a case structure of the washing machine is adopted, there is a problem that the entire washing machine becomes heavy and the portability is poor.

  The present invention solves the above-described conventional problems, and increases the plate thickness of the components constituting the washing machine casing even if the water tank is fixed to the washing machine casing as necessary. An object of the present invention is to provide a drum-type washing machine that is lightweight and excellent in portability.

  In order to solve the above-described conventional problems, the drum-type washing machine of the present invention has a water tank unit disposed in a washing machine casing having a support on the base, and the water tank unit includes a water tank and a back surface of the water tank. A rotating drum that is rotatably supported by a bearing fixed to the drum, a drum drive motor that rotationally drives the rotating drum, an upper support bracket that is fixed to the upper rear side of the water tank unit, and A rear lower support bracket fixed to the lower rear side, a removable upper fixing bracket that allows the upper rear surface of the washing machine casing and the upper support bracket to be screwed, and a lower rear section of the washing machine casing. Equipped with a lower mounting bracket that can be attached and a detachable lower mounting bracket that allows the lower mounting bracket to be fixed with screws. The lower mounting bracket restricts movement in the front / rear and left / right directions with respect to the support base. Even if the drum-type washing machine is moved by a large vibration or impact, the lower back bracket to which the lower fixing bracket is fixed is fixed to the front / rear / right / left direction of the support base. The movement of the housing is restricted, and the housing is not deformed or damaged when the housing is displaced from the support base. For this reason, it is not necessary to increase the thickness of the parts constituting the washing machine casing, and a lightweight washing machine can be configured.

  According to the present invention, even if it is a structure that can fix the water tub to the washing machine casing as required, it is lightweight and excellent in portability without increasing the thickness of the parts constituting the washing machine casing. Further, it is possible to prevent the housing from being deformed or damaged due to vibration or shock accompanying movement.

  1st invention arrange | positioned the water tank unit in the washing machine housing | casing provided with the support stand in the base part, and the said water tank unit was rotatably supported by the bearing fixed to the water tank and the back surface of the said water tank. A rotating drum, and a drum driving motor that rotationally drives the rotating drum, an upper support bracket fixed to the upper rear side of the water tank unit, and a lower back support bracket fixed to the lower rear side of the water tank unit; A removable upper fixing bracket that allows the upper rear surface of the washing machine casing and the upper support bracket to be screwed, a lower back bracket attached to the lower rear portion of the washing machine casing, and the lower lower support bracket. A removable lower fixing bracket that can be fixed, and the rear lower bracket is provided with a restricting portion that restricts movement in the front-rear and left-right directions with respect to the support base. Transfer The rear lower bracket to which the lower fixing bracket is fixed is restricted from moving in the front / rear and left / right directions of the support base by the restricting portion even if it receives a large vibration or impact during the operation. The housing will not be deformed or damaged due to misalignment. For this reason, it is not necessary to increase the thickness of the parts constituting the washing machine casing, and a lightweight washing machine can be configured.

  In the second aspect of the invention, in particular, the restriction part of the first aspect of the invention is configured such that the lower end of the back lower metal fitting is bent inward of the washing machine casing, and a part of the tip is bent downward, and a groove provided in the support base. Therefore, it is possible to more reliably restrict the movement of the lower back bracket in the front-rear and left-right directions by the restricting portion.

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

(Embodiment 1)
FIG. 1 is a schematic sectional view of a drum type washing machine according to a first embodiment of the present invention, FIG. 2 is an enlarged sectional view of a main part of the drum type washing machine, and FIG. 3 is a main part of the drum type washing machine. FIG.

  FIG. 1 shows a support structure of a water tank unit 5 when the drum type washing machine 1 is moved in the drum type washing machine 1 according to the present embodiment. The water tank unit 5 accommodates the bottomed cylindrical rotary drum 2 in a bottomed cylindrical resin-made water tank 3, and the rotary shaft 2 a of the rotary drum 2 is supported by a bearing 68 provided on the back surface of the water tank 3. The drum drive motor 7 is connected to the rotating shaft 2a while being supported. A rear lower support bracket 51 is attached to the bearing 68.

  The aquarium unit 5 is disposed in the washing machine casing 6 so as to be inclined upward, and is fixed to a lower support bracket 74 fixed to the lower part of the aquarium 3 and a base portion 6 a of the washing machine casing 6. The weight of the aquarium unit 5 is supported by arranging a pair of left and right vibration damping dampers 70 between the support base 73.

  The aquarium unit 5 has a heavy weight component such as a bearing 68 and a drum drive motor 7 attached to the back side thereof, so that the position of the center of gravity is closer to the back side, and the anti-vibration damper 70 places the center of gravity of the aquarium unit 5 in the center of gravity. Since the water tank unit 5 is tilted to the back side because it is supported near the front side from the position, the metal fixed to the upper part of the water tank 3 with a plurality of screws 98 over a wide range in order to correct this. A first coil spring 71 serving as an urging means is installed between the made upper support metal fitting (aquarium reinforcing metal fitting) 75 and the upper surface of the washing machine housing 6, and pulls the water tank unit 5 toward the front side and the upper side. Energized.

  A second coil spring 72 serving as a second urging means is installed between the lower back support bracket 51 attached to the lower back of the water tank unit 5 via a bearing 68 and the lower back of the washing machine housing 6. is doing. The urging position 51 a of the second coil spring 72 in the lower back support bracket 51 is located below the support position 74 a of the vibration damping damper 70 in the lower support bracket 74. Thereby, the state in which the water tank unit 5 falls to the back side is corrected more reliably.

  Since the rotary drum 2 is inclined downwardly from the front side to the back side where the rotation axis direction opens as shown in the figure, the rotary drum 2 opens and closes on an inclined surface 6 b formed on the front side of the washing machine housing 6. Opening the freely provided door body 9 makes it less necessary to bend in the process of putting the laundry in and out of the rotating drum 2, and it is necessary to secure a space on the front side of the drum type washing machine 1. Therefore, the drum type washing machine 1 that can be installed in a narrow space such as a washroom can be configured.

  With the above configuration, the weight of the water tank unit 5 is supported by the vibration damping damper 70, and the state where the water tank unit 5 falls to the back side due to being supported at a position closer to the front side than the center of gravity is elastically prevented by the first coil spring 71. Further, the water tank unit 5 is held at a predetermined position by further assisting with the second coil spring 72. In addition, since the vibration damping damper 70 and the first and second coil springs 71 and 72 are elastically supported, the vibration accompanying the rotation of the rotary drum 2 is reliably suppressed from being transmitted to the washing machine casing 6.

  The drum type washing machine 1 having the above configuration opens the door body 9 provided on the front side of the washing machine casing 6 and puts the laundry into the rotating drum 2 to start the operation. Water is supplied to the water level corresponding to the amount of laundry in the water tub 3, and the rotary drum 2 is driven to rotate by the drum drive motor 7, so that the washing process, the rinsing process, and the dehydrating process are sequentially executed.

  Since the drum-type washing machine 1 having the above-described configuration supports the water tub unit 5 in the washing machine casing 6 as described above, the drum-type washing machine 1 is transported from a production site to a warehouse or a sales store, or from a sales store to a home. The tank unit 5 may be damaged if it is transported to a location where it is moved, or if it is moved by moving, etc., subject to large vibrations or shocks, or if it is overturned or loaded at the wrong angle. May occur.

  In particular, the rotating drum 2 is made of metal and has a large weight. Since the rotating shaft 2a is in a single-supported state attached to the bottom of the bottomed cylindrical shape, the rotating shaft 2a may be deformed by a large impact. Therefore, when the drum-type washing machine 1 is moved, it is necessary to provide a restraining structure that restrains the floating state of the water tub unit 5 so that the water tub unit 5 does not move in the washing machine housing 6. The restraint structure is required to facilitate the work of restraining the tank unit 5 and releasing the restraint.

  Below, the detail of the restraint structure of the water tank unit 5 of the drum type washing machine in this Embodiment is described.

  As shown in FIGS. 1, 2, and 3, a plurality of bosses 3 a are provided over a wide range on the resin water tank 3, and the plurality of bosses 3 a are fixed by tightening a plurality of screws 98. A part of the metal upper support fitting 75 is cut and raised to form a water tank fixing part 97, and a screw hole 97b is formed in an upper connection part 97a formed in parallel to the back surface of the washing machine casing 6 of the water tank fixing part 97. In addition, an upper fixing bracket 83 formed by folding a strip-shaped plate material into a square shape is detachably attached to the upper back of the washing machine casing 6, and is attached to the upper fixing bracket 83 from the rear side of the washing machine casing 6. The upper fixing bolt 86 is penetrated.

  Further, a bearing fixing portion 53 whose tip is bent is formed on a metal rear lower support bracket 51 fixed to the lower portion of the bearing 68, and a lower connecting portion 53a formed in parallel with the rear surface of the washing machine housing 6. A screw hole 53b is provided, and a cylindrical lower fixing bracket 54 is detachably attached to the lower back of the washing machine casing 6 so that the lower fixing bolt 55 passes through the lower fixing bracket 54 from the rear side of the washing machine casing 6. I am letting.

  A rear lower metal fitting 40 is attached to the lower back of the washing machine casing 6, and the rear lower metal fitting 40 has restriction portions 41 a and 41 b that extend toward the inner surface of the casing 6 and are bent downward. Is integrally provided, and a part thereof is inserted into the groove 73a of the support base 73. In the front-rear direction of the housing, the restriction portions 41a and 41b are restricted by the rib portion 73b of the support base 73. In the left-right direction, the restricting portion 41 b is restricted by the groove portion 73 a of the support base 73.

  When restraining the water tub unit 5 when the drum type washing machine 1 is moved, if the upper fixing bolt 86 is rotated and advanced, the tip of the upper fixing bolt 86 is screwed into a screw hole 97b provided in the upper connecting portion 97a. 97a is in close contact with the upper fixing fitting 83. Similarly, when the lower fixing bolt 55 is advanced while rotating, the tip end portion is screwed into a screw hole 53b provided in the lower connecting portion 53a, and the lower connecting portion 53a is in close contact with the lower fixing bracket 54.

  In this way, the water tank unit 5 is fixed to the back surface of the washing machine housing 6 and the floating state of the water tank unit 5 is restrained.

  When the restraint state of the aquarium unit 5 is released, the upper fixing bolt 86 and the lower fixing bolt 55 are rotated in the direction of coming out of the screw hole 97b and the screw hole 53b. When the water tank fixing part 97 is separated from the upper fixing metal 83 and the bearing fixing part 53 is separated from the lower fixing metal 54 when the screw hole 53b is pulled out, the restraint of the water tank unit 5 is released, and then the upper fixing metal 83 and the lower fixing metal are removed. 54 is removed from the back of the washing machine housing 6.

  Since the metal lower back support bracket 51 is fixed to the bearing 68, it supports heavy components such as the bearing 68 and the drum drive motor 7, and receives loads and impacts in the front / rear and left / right directions of the water tank unit 5. For this reason, a large load is also applied to the rear surface of the housing due to the load applied to the lower fixing metal 54, but the restricting portions 41 a and 41 b of the lower back metal fitting 40 are restricted by the groove 73 a of the support base 73, so Almost no load is applied. For this reason, since it is not necessary to increase the thickness of the casing, the mass of the drum type washing machine does not become heavy, and it can be made excellent in portability during movement.

  On the other hand, the metal upper support fitting 75 is fixed over a wide range with a plurality of screws 98 on the upper part of the resin water tank 3, and therefore, when the drum-type washing machine 1 is moved, the upper support fitting 83 is interposed. Even if a force is applied to the upper support fitting 75, the upper support fitting 75 is made of metal and thus is not damaged. Further, the stress concentration applied to the water tank 3 can be reduced, and the resin water tank 3 can be reduced. Therefore, the strength of the drum-type washing machine 1 when moving can be ensured.

  Moreover, if the restraint structure is formed at two or more places on the left and right, the water tank unit 5 is restrained more reliably.

  In the above embodiment, the drum type washing machine in which the rotary drum 2 is inclined is described, but it goes without saying that the drum type washing machine in which the rotary drum 2 is horizontally arranged can be similarly configured.

  As described above, when the drum type washing machine according to the present invention moves the drum type washing machine in which the water tank unit in which the rotating drum is accommodated in the water tank is floated and supported in the washing machine case, the case is deformed. In addition, it is possible to reliably prevent the occurrence of damage and damage, and it is possible to obtain a drum-type washing machine having excellent portability without increasing the mass of the entire washing machine.

Schematic sectional view of the drum type washing machine in the first embodiment of the present invention. Main section enlarged view of the drum type washing machine Front view of main parts of the drum type washing machine

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum-type washing machine 2 Rotating drum 3 Water tank 5 Water tank unit 6 Washing machine housing | casing 6a Base part 7 Drum drive motor 40 Back lower metal fitting 41b Control part 51 Back lower support metal 54 Lower fixing metal 68 Bearing 73 Support stand 75 Upper support metal 83 Upper fixing bracket

Claims (2)

A water tub unit is arranged in a washing machine casing having a support on the base, and the water tub unit is rotatably supported by a water tank, a bearing fixed to the back surface of the water tank, and the rotation. An upper support bracket fixed to the upper rear side of the aquarium unit; a lower lower support bracket fixed to the lower rear side of the aquarium unit; and an upper portion of the washing machine casing. A detachable upper fixing bracket that allows the back and the upper support bracket to be screwed, and a rear lower bracket that is attached to the lower back of the washing machine housing and the rear lower support bracket that can be screwed. A drum-type washing machine comprising: a lower fixing bracket that is freely movable, and a restriction portion that restricts movement in the front-rear and left-right directions with respect to the support base. The restricting portion is formed by bending the lower end portion of the lower back metal fitting inward of the washing machine casing, bending a part of the tip thereof downward, and inserting the groove into a groove provided in the support base. The drum-type washing machine according to 1.

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