JP2007037804A - Drum type washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drum type washing machine capable of reducing vibrations due to the fluctuation of the position of the centroid of a vibrating body load supported inside an outer box by a buffering means. <P>SOLUTION: In the drum type washing machine, the plurality of buffering means (dampers 30 and 30') are disposed such that the position g1 of the centroid of the load (a water tub, a drum and a motor, etc.,) supported from below inside the outer box 1 by the plurality of buffering means (dampers 30 and 30') is situated at the position of the same height as a straight line connecting the connection positions P1 and P2 of the plurality of buffering means (dampers 30 and 30') with the water tub or lower than the straight line. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a drum type washing machine.

  Drum-type washing machines are widely used especially in Europe. As a drum-type washing machine, generally, a washing machine including a washing process and a rinsing process in which a rotating drum is rotated at a low speed and a dehydration process in which the rotating drum is rotated at a high speed and a drying process are commercialized. .

  14 and 15 show a conventional drum type washing machine. FIG. 14 is a longitudinal sectional view of a conventional drum type washing machine as viewed from the side, and FIG. 15 is a longitudinal sectional view at another position of the conventional drum type washing machine as viewed from the side. The outer box 201 has an outer box opening 201 a that opens to the front surface thereof, and can be opened and closed by an opening / closing door 202. In the outer box 201, a cylindrical water tank 203 having a water tank opening 203a that opens to face the outer box opening 201a is arranged so that the cylinder axis is inclined downward with respect to the horizontal axis. Has been. The outer box opening 201a and the water tank opening 203a are connected so as to communicate in a watertight manner by a cylindrical door packing 204 having a bellows part 204a that makes it difficult to transmit the vibration of the water tank 203 to the outer box 201. .

  Inside the water tank 203, a cylindrical drum 205 having a drum opening 205a that opens opposite to the water tank opening 203a is arranged so that the cylindrical axis is inclined downward with respect to the horizontal axis. Yes. The drum 205 is provided with a large number of small holes 205b over the entire circumferential surface of the cylinder, and air and liquid in and out of the water tank 203 and the drum 205 can enter and exit through the small holes 205b. A baffle 205 c that protrudes toward the cylindrical central axis of the drum 205 is provided on the inner wall surface of the drum 205.

  A drum shaft 205d protrudes rearward from the center of the rear surface of the drum 205 and is attached so as to penetrate the rear surface of the water tank 203. The motor cover 206a attached to the rear surface of the water tank 203 can be rotated via a bearing 206b. It is supported. The drum 205 is directly connected to a motor 206 attached to the back surface of the water tank 203 via a drum shaft 205 d, and the drum 205 is driven to rotate by driving the motor 206.

  A moving body-enclosed liquid balancer 207 is provided at the front of the drum 205. The liquid balancer 207 can prevent the drum 205 from swinging greatly when the drum 205 is driven to rotate, thereby contributing to the prevention of vibration. In addition, since the liquid balancer 207 itself is heavy, it can contribute to an improvement in the rotation balance of the drum 205.

  As shown in FIG. 15, a drain duct 208 and a drain valve 209 are provided at the bottom of the water tank 203. When the drain valve 209 is opened, water in the water tank 203 is passed through the drain duct 208 to the outer box. The water is drained to the outside of 201.

  A drying unit 210 is provided from the rear rear of the water tank 203 to the upper periphery. The drying unit 210 includes a suction port 210a, a dehumidifier 210b, a blower fan unit 210c, a heater unit 210d, and a discharge port 210e. The drying unit 210 circulates the air in the water tank 203 through the suction port 210a during the drying operation, and returns to the water tank 203 from the discharge port 210e through the dehumidifier 210b, the blower fan unit 210c, and the heater unit 210d. By repeating the above, warming of the air in the water tank 203 and heat exchange (dehumidification) are performed.

  Further, as shown in FIG. 14, a counterweight 211 is attached to the front upper side of the water tank 203, and a counterweight 212 is also attached to the front lower side of the water tank 203. The counterweights 211 and 212 are attached to adjust the center of gravity of a load load 213, which will be described later, and the load load 213 is changed by changing the mounting position and weight of the counterweights 211 and 212 to the water tank 203. The position and weight of the center of gravity can be easily changed, and the degree of freedom in design can be improved.

  The water tank 203 includes a pair of left and right dampers 214 supported from below, and a tension coil-type regulating spring 215 that applies a tensile force in the front-rear direction between the front upper side of the water tank 203 and the front upper side of the outer box 201. In addition, it is supported in the outer box 201 via a tension coil-shaped regulating spring 217 that applies a tensile force in the front-rear direction between the front upper side of the water tank 203 and the connecting member 216 fixed to the middle upper side of the outer box 201. Has been.

  Here, the damper 214 and the regulation springs 215 and 217 include a water tank 203, a drum 205, a motor 206, a liquid balancer 207, a duct 210a, a dehumidifier 210b, a blower fan section 210c, a heater section 210d, a duct 210e, and a counterweight 211. , 212 is applied, and is supported. The pair of left and right dampers 214 is provided at one position in the front-rear direction, and is provided at a position that substantially coincides with the position g of the center of gravity of the load 213. A drum-type washing machine having the above configuration is disclosed in, for example, Patent Document 1.

  Each of the washing, rinsing, dewatering washing, and drying steps includes a laundry load 218 that includes a laundry that is an object to be treated put in the drum 205 and washing water that is used to treat the laundry. In this state, the drum 205 is rotated by the motor 206 and executed. In the washing process, the motor 206 is intermittently driven in the forward and reverse directions at a relatively low rotational speed, so that the drum 205 is intermittently rotated in the forward and reverse directions. In the dehydration process, the motor 205 is continuously driven in one direction at a high rotational speed, so that the drum 205 is rotated at a high speed.

  In the drum type washing machine having such a configuration, the rotational balance is good because the position of the damper 214 substantially coincides with the position g of the center of gravity of the load load 213 even when the drum 205 is rotationally driven in the washing process. Further, by providing the regulation springs 215 and 217 which are regulation means for elastically regulating the movement of the load load 213 in the front-rear direction, it is possible to reduce the swing of the load load 213 in the front-rear direction. Generation of vibration can be effectively suppressed.

Japanese Patent Application Laid-Open No. 2000-262796

  However, in such a drum-type washing machine, as shown in FIG. 14, the position g of the center of gravity of the load load 213 and the center of gravity of the laundry load 218 accommodated in the drum 205 during the washing process and the drying process. Since the position g ′ exists above the connection position P between the damper 214 and the water tank 203, the position G of the center of gravity of the vibrating body load 219, which is the total weight of the load load 213 and the washing load 218, is the connection position P. 14 is present on the front side (left side in FIG. 14) / rear side (right side in FIG. 14), the water tank 203 is counterclockwise (counterclockwise) / Rotate clockwise (clockwise). When the water tank 203 rotates counterclockwise / clockwise, the gravity center position G is further displaced forward / backward, and the distance in the front-rear direction between the gravity center position G and the connection position P is increased. The moment for rotationally displacing is also increased. For this reason, the vibration due to the fluctuation of the gravity center position G becomes large, and if washing, rinsing, dehydration, and drying steps are performed in this state, a large noise is generated due to the vibration of the water tank 203.

  Accordingly, the present invention provides an outer box having an outer box opening that opens forward, a water tank that has a water tank opening that faces the outer box opening and is disposed in the outer box, and a water tank. A drum having a drum opening that opens opposite to the opening and enclosed in the water tank, an electric motor that rotationally drives the drum, and a plurality of buffering means that elastically supports the water tank from below in the outer box In a drum-type washing machine, a water tank of two buffering means of the plurality of buffering means is provided with a water tank, a drum, and an electric motor, and the position of the center of gravity of the load load elastically supported in the outer box by the plurality of buffering means A plurality of buffers so as to be on at least one plane including an axis connecting between the connection positions and a horizontal line perpendicularly intersecting the axis, or at a position lower than the at least one plane. It is characterized by arranging means. With such a configuration, when the position of the center of gravity of the vibrating body load changes and the water tank rotates, the rotating moment of the vibrating body load acts so as to reduce, so that the vibration of the water tank can be reduced.

  The present invention also includes an outer box having an outer box opening that opens forward, a water tank that has a water tank opening that faces the outer box opening and is disposed in the outer box, and a water tank. A drum having a drum opening that opens opposite to the opening and enclosed in the water tank, an electric motor that rotationally drives the drum, and two buffering means that elastically support the water tank in the outer box from below. In the drum type washing machine, the position of the center of gravity of the load load provided with the water tank, the drum and the electric motor and elastically supported in the outer box by the two buffering means is between the connection positions of the two buffering means to the water tank. Two buffering means are arranged so as to be on a plane including a connecting axis and a horizontal line perpendicularly intersecting the axis, or at a position lower than the plane. By setting it as such a structure, the vibration of the water tank by the fluctuation | variation of the gravity center position of the vibrating body load which concerns on these two buffer means can be reduced.

  Further, in the above configuration, the two buffering means are such that the connection positions of the two buffering means to the water tank are both the same height as the position of the center of gravity of the load load or a position higher than the position of the center of gravity of the load load. Is preferable. By setting it as such a structure, it can prevent the damping effect of a water tank being impaired by the fluctuation | variation to the horizontal direction of the gravity center of a vibrating body load. Moreover, between the connection position with the water tank of two buffer means with respect to the washing load which consists of the laundry of the rated weight accommodated in the inside of a water tank and washing water, and the vibration body load which consists of a load load and a laundry load It is preferable to arrange the two buffering means so that the projection axis of the connecting axis on the horizontal plane passes between the center of gravity position of the load load and the projection point of the center of gravity position of the vibrator load on the horizontal plane. By setting it as such a structure, the influence of the rotation displacement of the water tank by the increase / decrease in washing load can be reduced.

  The present invention also includes an outer box having an outer box opening that opens forward, a water tank that has a water tank opening that faces the outer box opening and is disposed in the outer box, and a water tank. A drum having a drum opening that opens opposite to the opening and enclosed in the water tank, an electric motor that rotationally drives the drum, and three or more buffering means that elastically support the water tank from below in the outer box The drum-type washing machine provided includes a water tank, a drum, and an electric motor, and the position of the center of gravity of the load that is elastically supported in the outer box by the three or more buffering means is the water tank of the three or more buffering means. Three or more buffering means are arranged so as to be on at least one plane passing through at least three of the connection positions, or to be lower than the at least one plane. . By adopting such a configuration, it is possible to reduce vibrations around a plurality of axes as well as around one of the axes connecting the connection positions, and to provide a product that is more resistant to fluctuations in the position of the center of gravity of the vibrating body load. .

  Further, in the above-described configuration, a water tank, a drum, and an electric motor are provided, and a load load elastically supported in the outer box by three or more buffering means, and a laundry and washing water having a rated weight accommodated in the water tank And at least one of the three or more shock absorbers is the same as the position of the center of gravity of the vibrator load or the vibration in the front-rear direction. The front of the center of gravity of the body load is supported, and at least one of the three or more buffering means is the same as the position of the center of gravity of the load load in the front-rear direction or behind the position of the center of gravity of the load load. Support is preferred. If it does in this way, the rotation of the water tank around the horizontal axis in the left-right direction due to the downward / upward displacement of the rear part of the water tank can be made difficult to occur. In addition, the water tank is inclined with respect to the front side having the water tank opening so that the back side on which the electric motor for rotating the drum is driven is positioned downward, and is the same as the position of the center of gravity of the load load or the load load. It is preferable to provide a connection position between the water tank and at least one buffering means that supports the rear of the center of gravity of the water tank. In this way, the support effect of the rear part of the water tank is enhanced, and a damper can be disposed in the dead space generated between the outer case back surface and the water tank back surface due to the water tank inclination, so that the depth dimension of the product is increased. Can also be suppressed. Further, it is preferable that the front position of the water tank is provided with at least one buffering means that supports the front of the position of the center of gravity of the vibrating body load or the position of the center of gravity of the vibrating body load. If it does in this way, the rotation of the water tank around the horizontal axis in the left-right direction due to the upward / downward displacement of the front part of the water tank can be made difficult to occur.

  ADVANTAGE OF THE INVENTION According to this invention, the drum type washing machine which can reduce the vibration by the fluctuation | variation of the position of the gravity center of the vibrating body load supported in an outer case by a buffer means can be provided.

[First embodiment of the present invention]
Hereinafter, the drum type washing machine according to the first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a schematic view of the drum type washing machine according to the first embodiment of the present invention as seen from obliquely upward, FIG. 2 is a schematic longitudinal sectional view seen from the side, and FIG. 3 is a position different from FIG. FIG. 4 is a schematic longitudinal sectional view showing the water tank support structure as seen from the front.

  As shown in FIG. 1, the drum type washing machine according to the first embodiment of the present invention includes an outer box 1 that constitutes the front, rear, left, and right surfaces of the exterior, and the top is the top 2 and the bottom is the bottom. It is covered with a stand 3. On the front side of the outer box 1, an opening / closing door 4 that opens and closes an outer box opening 1 a (see FIG. 2) that opens forward is attached to the outer box 1 by a hinge (not shown). In addition, a detergent case 5 for storing detergent, bleach and softener is provided at the upper left part of the open / close door 4 of the outer box 1, and an operation panel 6 having operation keys and a display part is provided at the upper right part. The detergent case 5 includes a container (not shown) provided inside the outer box 1 and is slidable in the front-rear direction. As shown in FIG. 2, a control circuit 7 for controlling the operation of the drum type washing machine is disposed on the back side of the operation panel 6 which is the inside of the outer box 1. The control circuit 7 sets the operation program such as “standard course”, “blanket course”, “dry course” stored in the storage means (not shown) as appropriate by the user so that the washing process, the rinsing process, and the dehydrating operation ( And the operation of each part of the drum type washing machine is controlled so that each step is performed continuously or independently.

  As shown in FIG. 2, connecting members 8 and 9 made of a metal bent plate member or the like are fixed to the front lower surface side and the central lower surface side of the top plate 2, respectively. One end of a suspension 27 described later is connected to the connecting member 8, and one end of a suspension 28 described later is connected to the connecting member 9. Further, as shown in FIG. 2, the bottom base 3 has a substantially rectangular cross section in the horizontal plane, and a leg 3a that contacts the floor surface and supports the drum type washing machine at the bottom of the bottom surface when installed. The base 3 is attached so as to be positioned in the vicinity of the respective apexes of the substantially rectangular shape. Further, as shown in FIGS. 2 and 3, damper mounting portions 11, 11 ′ to which one end of dampers 30, 30 ′ described later are connected are arranged on the upper surface of the bottom base 3. As shown in FIG. 4, the damper mounting portion 11 is arranged on the left side and the damper mounting portion 11 ′ is on the right side, and with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. 4. Thus, the damper mounting portion 11 and the damper mounting portion 11 ′ are arranged to be line symmetric. Further, the damper mounting portion 11 and the damper mounting portion 11 ′ are mounted so as to be at the same position when viewed from the side.

  As shown in FIG. 2, a water tank 10 having a bottomed cylindrical shape is disposed inside the outer box 1 so that the rear side thereof is inclined downward by 5 to 30 ° with respect to the horizontal plane. The water tank 10 is configured by connecting a front part 10a that forms the front side with respect to the axial direction and a front part 10b that forms the rear side with respect to the axial direction of the water tank 10 with screws 10c. The front portion 10a is provided with a suspension attachment portion 12 to which one end of suspensions 27 and 28, which will be described later, is coupled on the upper outer peripheral surface thereof. Moreover, as shown in FIG. 2, the front part 10a is provided with a water tank opening 10d that opens to face the outer box opening 1a. A door packing 14 is attached to the water tank opening 10d so as to connect each opening in a watertight manner to the outer box opening 1a. The door packing 14 includes a bellows portion 14 a and is difficult to transmit the vibration of the water tank 10 to the outer box 1. When the open / close door 4 is closed, the open / close door 4 and the seal portion 14b of the door packing 14 are in close contact with each other in a watertight manner, so that liquid in the water tank 10 can be prevented from leaking from the outer box opening 1a.

  Further, as shown in FIGS. 2 and 3, damper mounting portions 13 and 13 ′ to which one end of dampers 30 and 30 ′, which will be described later, are connected are disposed on the front outer portion 10 a. As shown in FIG. 4, the damper mounting portion 13 is arranged on the left side and the damper mounting portion 13 ′ is on the right side, and with respect to a vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. 4. Thus, the damper mounting portion 13 and the damper mounting portion 13 'are arranged so as to be line symmetric. Moreover, it is comprised so that the damper attachment part 13 and damper attachment part 13 'may become the same position seeing from the side.

  On the other hand, in the place where the height from the floor surface in the lower rear part of the water tank 10 is the lowest, as shown in FIG. 3, the washing water supplied from the water supply path (not shown) into the water tank 10 is supplied to the water tank 10. A drainage duct 15 for discharging to the outside is connected. The drainage duct 15 is provided with a drainage valve 16, and the drainage valve 16 is controlled to open and close based on the control of the control circuit 7 to control the discharge of water from the water tank 10.

  As shown in FIG. 2, a drum 20 having a bottomed cylindrical shape is disposed inside the water tank 10 so that the cylindrical axis thereof is inclined downward by 5 to 30 ° with respect to the horizontal axis in the same manner as the water tank 10. Arranged. The drum 20 is provided with a drum opening 20a that opens to face the outer box opening 1a and the water tank opening 10d, and the outer box opening 1a, the water tank opening 10d, and the drum opening 20a are interposed therebetween. Thus, the laundry is taken in and out of the drum 20.

  The drum 20 is provided with a large number of small holes 20b over the entire circumferential surface of the drum 20 (in FIG. 2, only twelve small holes 20b are shown, and the other small holes 20b are not shown). The small holes 20b allow the inside of the water tank 10 and the inside of the drum 20 to communicate with each other so that air and liquid in and out of the water tank 10 and the inside of the drum 20 can enter and exit. Further, a baffle 20 c that protrudes toward the cylindrical central axis direction of the drum 20 is provided on the inner wall surface of the drum 20. The baffles 20c are arranged at, for example, three positions (three rotation axes) at 120 ° intervals so as to be rotationally symmetric having n (n = 2 or more natural number) rotation axes in the circumferential direction. The baffle 20c is for washing or rinsing the laundry by repeatedly lifting the contained laundry and dropping it into the washing water or rinsing water as the drum 20 rotates in the washing step or the rinsing step.

  A drum shaft 20d whose axial direction is the same as the cylindrical shaft of the drum 20 is provided at the center of the back surface of the drum 20 so as to protrude rearward. The drum shaft 20d penetrates the bottom surface of the front portion 10b that forms the rear side of the water tank 10, and the front end portion of the drum shaft 20d enters the motor 22 that is an electric motor that is attached to the rear surface side of the front portion 10b with screws 21. The motor 22 has a motor cover 22a covering its outer periphery, a bearing 22b that rotatably supports the drum shaft 20d, a rotor 22c that rotationally drives the drum shaft 20d, and a rotational driving force applied to the rotor 22c by magnetic force. And a stator 22d. The motor 22 drives the rotor 22 c via the stator 22 d based on the control by the control circuit 7 to rotate the drum 20.

  Further, in the periphery of the drum opening 20a, there is provided a throttle portion formed so that the circumferential surface of the drum 20 has a small diameter toward the inside in the radial direction, and the liquid balancer 23 is fixed along the outer periphery thereof. The liquid balancer 23 includes a hollow outer shell having an annular shape and a liquid such as salt water enclosed therein. The liquid balancer 23 can cancel out the imbalance by the movement of the liquid inside, especially when an imbalance occurs due to the bias of the laundry during the high-speed rotation of the dehydration process.

  As shown in FIG. 3, a drying unit 24 that dries the laundry in the drying process is provided in a space extending from the rear side of the water tank 10 to the upper part of the outer periphery. The drying unit 24 includes a suction port 24a that is a suction port for the air in the water tank 10, a dehumidifier 24b that dehumidifies the air sucked from the suction port 24a, a blower fan unit 24c that sucks the air dehumidified by the dehumidifier 24b, A heater unit 24d that heats the air discharged by the blower fan unit 24c and a discharge port 24e that discharges the air heated by the heater unit 24d into the water tank 10 are provided.

  As shown in FIG. 2, suspensions 27 and 28 that suppress vibrations in the front-rear direction of the water tank 10 are disposed above the outside of the water tank 10. One end of each of the suspension 27 and the suspension 28 is coupled to the suspension mounting portion 12 provided on the outer peripheral surface of the water tank 10, and the other end is coupled to the coupling member 8 and the coupling member 9 fixed below the top surface 2. . In the first embodiment, each of the suspensions 27 and 28 uses a general coil spring. However, a suspension that can be suspended elastically such as an air damper may be employed. As described above, since the suspensions 27 and 28 are suspended and supported elastically, it is possible to make it difficult for vibrations from the water tank 10 to propagate to the outer box 1 and thus to transmit vibrations to the floor.

  Two dampers 30, 30 ′ serving as buffer means for elastically pushing up and supporting the water tank 10 from below are disposed below the water tank 10. In the first embodiment, each of the damper 30 and the damper 30 ′ uses a general oil damper having a damping function and having a cylinder portion in which oil is sealed above and a coil spring below. However, other dampers having the same performance, such as an air damper, can be used. One end of each of the damper 30 and the damper 30 ′ is connected to the damper mounting portion 11 and the damper mounting portion 11 ′ provided on the bottom surface portion of the base 3 via the elastic member 31 and the elastic member 31 ′, and the other end. Are connected to a damper mounting portion 13 and a damper mounting portion 13 'provided on the outer peripheral surface of the water tank 10, respectively, via an elastic member 32 and an elastic member 32'. In this way, the dampers 30 and 30 ′ elastically push up and support the water tank 10, and the connection between the dampers 30 and 30 ′ and the water tank 10 and the outer box 1 is elastic members 31, 31 ′, 32, and 32 ′. Therefore, the propagation of vibrations from the water tank 10 to the outer box 1 and hence the transmission of vibrations to the floor can be made difficult to occur.

  As shown in FIG. 4, the damper 30 supports the left side of the water tank 10 when viewed from the front, and the damper 30 ′ supports the right side of the water tank 10 when viewed from the front. Further, as shown in FIG. 4, when viewed from the front, the damper mounting portion 11 is arranged on the left side with respect to the damper mounting portion 13, and the damper mounting portion 11 ′ is located with respect to the damper mounting portion 13 ′. It is arranged on the right side. Further, as described above, the damper attachment portion 11 and the damper attachment portion 11 ′ and the damper attachment portion 13 and the damper attachment portion 13 ′ are linear with respect to the vertical axis passing through the center of the drum type washing machine in the cross-sectional view of FIG. Arranged to be symmetrical. That is, the dampers 30 and 30 'are attached so as to be symmetrical in the attached state with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. Further, when viewed from the side, the damper mounting portion 11 and the damper mounting portion 11 ′ and the damper mounting portion 13 and the damper mounting portion 13 ′ are arranged so that their front and rear directions are at the same position, and the damper mounting portion 11 and The damper mounting portion 11 ′ is disposed vertically below the damper mounting portion 13 and the damper mounting portion 13 ′. That is, the P1-P2 axis (see FIG. 4) connecting the connection position P1 (see FIG. 4) between the damper mounting portion 13 and the damper 30 and the connection position P2 (see FIG. 4) between the damper mounting portion 13 ′ and the damper 30 ′. ) Is parallel to a horizontal axis that coincides with the left-right direction of the drum-type washing machine, and the damper 30 and the damper 30 ′ are arranged so that their elastically supporting axial directions are on the same vertical plane.

  In this drum type washing machine, as a member elastically supported in the outer box 1 together with the water tank 10 (including the damper mounting portions 11 and 11 ′ and the suspension mounting portion 12) by the dampers 30 and 30 ′ (and the suspensions 27 and 28), Examples thereof include a drum 20 (including a baffle 20c and a drum shaft 20d), a motor 22, a liquid balancer 23, and a drying unit 24. Hereinafter, a configuration including these members (water tank 10, drum 20, motor 22, liquid balancer 23, drying unit 24, etc.) that vibrates with the water tank 10 in the washing process or the drying process is referred to as a load load 33. In the washing process or the rinsing process, the laundry to be put into the drum and the washing water or the rinsing water supplied into the water tub 10 are loaded on the dampers 30 and 30 ′ (and the suspensions 27 and 28). Thus, it is elastically supported by the dampers 30 and 30 ′ (and the suspensions 27 and 28) together with the water tank 10. In these washing steps or rinsing steps, a laundry or a weight body made of washing water or rinsing water that becomes a load on the dampers 30 and 30 ′ (and the suspensions 27 and 28) is referred to as a washing load 34. A weight body obtained by adding the load load 33 and the washing load 34 is referred to as a vibrator load 35.

  2 and 4 show the position of the center of gravity of the load 33 as g1, the position of the center of gravity of the laundry load 34 when the laundry of the rated weight is loaded as g0, and the position of the center of gravity of the vibrator load 35 at this time as G1. In the first embodiment of the present invention, the position g0 of the center of gravity of the washing load 34 exists in front of and below the position g1 of the center of gravity of the load load 33. The center of gravity of the vibrating body load 35 is a point G1 on a line segment that connects the position g2 of the center of gravity of the washing load 34 and the position g1 of the center of gravity of the load load 33.

  Here, preferably, as shown in FIG. 2, the dampers 30 and 30 ′ may support between the position G1 and the position g1 in the front-rear direction. Supporting between the position G1 and the position g1 in the front-rear direction means that the projection axis of the P1-P2 axis on the same horizontal plane passes between the projection points of the position G1 and the position g1 on the horizontal plane. Since the center of gravity of the vibrating body load 35 is between the position G1 and the position g1, the influence of the rotational displacement of the aquarium due to the change in the weight of the washing load 34 can be reduced. Further, if the position is higher than the position g1 with respect to the height direction, the distance change in the horizontal direction with respect to the P1-P2 axis of the position of the center of gravity of the vibrating body load 35 due to the rotation of the water tank can be increased. It is also possible to make it.

  In the drum type washing machine according to the first embodiment of the present invention, a washing load 34 is included in the water tank 10 in a washing process such as a washing process, an rinsing process, a dehydration process, and a drying process. The position of the center of gravity exists in front of and below g1, and the position of the center of gravity of the vibrating body load 35 in the vertical direction also exists below the P1-P2 axis. Here, when the position of the center of gravity of the vibrating body load 35 is on the front side (left side in FIG. 2) / back side (right side in FIG. 2) with respect to the front-rear direction with respect to the P1-P2 axis, In the cross-sectional view shown in FIG. 3, it rotates counterclockwise (counterclockwise) / clockwise (clockwise) about the P1-P2 axis. When the aquarium 10 rotates counterclockwise / clockwise, the position of the center of gravity of the vibrating body load 35 is displaced rearward / frontward with respect to the P1-P2 axis, and the P1-P2 axis and the vibrating body load 35 are displaced. Since the distance in the front-rear direction from the position of the center of gravity is small, the moment for rotationally displacing the water tank 10 is also small. For this reason, even when there is a change in the position of the center of gravity of the vibrating body load 35, the vibration caused by the fluctuation does not increase, and the vibration of the water tank 10 is small even in the washing operation. Further, it is possible to prevent the generation of noise due to the propagation of vibrations to the outer box 1 via the suspensions 27 and 28, the collision of the water tank 10 with the outer box 1, and the like. Further, since the P1-P2 axis is horizontal, it is possible to prevent the damping effect on the water tank 10 of the dampers 30 and 30 'due to the variation in the center of gravity position of the vibrating body load 35 in the direction along the P1-P2 axis.

  In this embodiment, the P1-P2 axis is a horizontal axis. However, even if the axis connecting the connection position of the two dampers to the water tank is an axis having a certain inclination with respect to the horizontal plane. Good. In this case, the vibration of the water tank can be reduced by arranging the position of the center of gravity of the load load on a plane including the tilt axis and a horizontal axis perpendicular to the tilt axis or at a position lower than the plane.

[Second embodiment of the present invention]
Next, a drum type washing machine according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a schematic longitudinal sectional view of the drum-type washing machine according to the second embodiment of the present invention as seen from the side, and FIG. 6 is a schematic longitudinal sectional view as seen from the side at a position different from FIG. FIG. 7 is a schematic longitudinal sectional view as seen from the front showing a support structure of a water tank with a damper whose left half supports the front side of the water tank and a right half of the support structure of the water tank with a damper supporting the rear side of the water tank. . In addition, about this 2nd embodiment, about the member same as 1st embodiment mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the drum type washing machine according to the second embodiment of the present invention, damper mounting portions 41 and 41 are connected to one end of dampers 45 and 45 ′ described later on the bottom upper side of the base 3 that covers the lower side of the outer box 1. ′ And damper mounting portions 42, 42 ′ to which one ends of the dampers 46, 46 ′ are connected are provided. As shown in FIGS. 5 and 6, the damper mounting portions 41 and 41 ′ are on the front side of the base 3 (left side in FIGS. 5 and 6), and the damper mounting portions 42 and 42 ′ are on the rear side of the base 3 (see FIG. 5). 5 and the right side in FIG. Further, as shown in FIG. 7, the damper mounting portion 41 is arranged on the left side and the damper mounting portion 42 ′ is on the right side, and a vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. 7. On the other hand, the damper mounting portion 41 and the damper mounting portion 41 ′ are arranged so that the damper mounting portion 42 and the damper mounting portion 42 ′ are line symmetric. Further, when viewed from the side, the damper mounting portion 41 and the damper mounting portion 41 ′ and the damper mounting portion 42 and the damper mounting portion 42 ′ are configured at the same position.

  Moreover, the water tank 40 which has a bottomed cylindrical shape is distribute | arranged inside the outer box 1 so that the back side may incline by 5-30 degrees with respect to a horizontal surface. The water tank 40 is configured by connecting a front part 40 a that forms the front side with respect to the axial direction and a rear part 40 b that forms the rear side with respect to the axial direction of the water tank 40 with screws 40 c. The front portion 40a is provided with a suspension mounting portion 12 to which one end of suspensions 27 and 28, which will be described later, is connected to the upper outer peripheral surface thereof. Moreover, as shown in FIG. 5, the front part 40a is provided with a water tank opening 40d that opens to face the outer box opening 1a. Similarly to the first embodiment, a door packing 14 is attached to the water tank opening 40d so as to connect the respective openings in a watertight manner to the outer box opening 1a.

  Further, as shown in FIGS. 5 and 6, damper mounting portions 43 and 43 ′ to which one end of dampers 45 and 45 ′, which will be described later, are connected are disposed on the front portion 40 a. As shown in FIGS. 5 and 6, damper mounting portions 44, 44 ′ to which one end of dampers 46, 46 ′, which will be described later, are connected are disposed on the rear portion 40 b. As shown in FIG. 7, the damper mounting portion 44 is arranged on the left side and the damper mounting portion 44 'is on the right side, and with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. Thus, the damper mounting portion 43 and the damper mounting portion 43 ′ are arranged so that the damper mounting portion 44 and the damper mounting portion 44 ′ are line symmetric. Further, when viewed from the side, the damper mounting portion 43 and the damper mounting portion 43 ′ and the damper mounting portion 44 and the damper mounting portion 44 ′ are configured at the same position.

  As shown in FIG. 5, suspensions 27 and 28 that suppress vibrations in the front-rear direction of the water tank 40 are disposed above the outside of the water tank 40. One end of each of the suspension 27 and the suspension 28 is connected to the suspension mounting portion 12 provided on the outer peripheral surface of the water tank 40, and the other end is connected to the connecting member 8 and the connecting member 9 fixed below the top surface 2. . Thus, since the suspensions 27 and 28 are suspended and supported elastically, it is possible to make it difficult for vibrations from the water tank 40 to propagate to the outer box 1 and thus to transmit vibrations to the floor.

  Four dampers 45, 45 ′, 46, 46 ′ serving as buffering means for elastically pushing up and supporting the water tank 40 from below are disposed below the water tank 40. The dampers 45, 45 ′, 46, 46 ′ are provided with elastic members 47, 47 ′, 48, 48 ′ on the damper mounting portions 41, 41 ′, 42, 42 ′ provided at one end of the damper 45, 45 ′, 46, 46 ′. And the other end is connected to damper mounting portions 43, 43 ′, 44, 44 ′ provided on the outer peripheral surface of the water tank 40 via elastic members 49, 49 ′, 50, 50 ′. Thus, the dampers 45, 45 ', 46, 46' elastically push up and support the water tank 40, and the dampers 45, 45 ', 46, 46' are elastically connected to the water tank 40 and the outer box 1. Since it is carried out via the members 47, 47 ′, 48, 48 ′, 49, 49 ′, 50, 50 ′, the propagation of the vibration from the water tank 40 to the outer box 1 and the transmission of the vibration to the floor are generated. Can be difficult.

  As shown in FIG. 7, the damper 45 supports the left side of the water tank 40 as viewed from the front, and the damper 46 ′ supports the right side of the water tank 40 as viewed from the front. Further, as shown in FIG. 7, when viewed from the front, the damper mounting portion 41 is on the left side with respect to the damper mounting portion 43, and the damper mounting portion 42 'is on the right side with respect to the damper mounting portion 44'. Further, as described above, with respect to the vertical axis passing through the center of the drum type washing machine in the cross-sectional view of FIG. 7, the damper mounting portion 41 and the damper mounting portion 41 ′ and the damper mounting portion 42 and the damper mounting portion 42 ′, the damper mounting portion 43 and the damper mounting portion 43 ′, and the damper mounting portion 44 and the damper mounting portion 44 ′ are arranged in line symmetry. That is, the dampers 45, 45 ', 46, 46' are attached so as to be symmetrical in the attached state with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG.

  Further, when viewed from the side, the damper mounting portion 41 and the damper mounting portion 41 ′, the damper mounting portion 42 and the damper mounting portion 42 ′, the damper mounting portion 43 and the damper mounting portion 43 ′, and the damper are provided. The mounting portion 44 and the damper mounting portion 44 ′ are arranged so that the front and rear directions thereof are at the same position, and the damper mounting portions 41 and 41 ′ are respectively disposed relative to the damper mounting portions 43 and 43 ′. 42 and 42 'are arrange | positioned so that it may become vertically downward with respect to the damper attachment parts 44 and 44', respectively.

  That is, the P3-P4 axis (see FIG. 7) connecting the connection position P3 (see FIG. 7) between the damper mounting portion 43 and the damper 45 and the connection position P4 (see FIG. 7) between the damper mounting portion 43 ′ and the damper 45 ′. ) And the P5-P6 shaft connecting the connecting position P5 (see FIG. 7) between the damper mounting portion 44 and the damper 46 and the connecting position P6 (see FIG. 7) between the damper mounting portion 44 ′ and the damper 46 ′ is drum-type washing. It is arranged so as to be parallel to the horizontal axis that coincides with the horizontal direction of the machine. It should be noted that here, the damper mounting portions 41 and 41 ′ are in front of the damper mounting portions 43 and 43 ′, respectively, and the damper mounting portions 42 and 42 ′ are in the rear of the damper mounting portions 44 and 44 ′, respectively. The vibration in the front-rear direction of the water tank 40 can be reduced.

  In this drum type washing machine, a water tank 40 (damper mounting portions 43, 43 ′, 44, 44 ′ and suspension mounting portion 12) is disposed in the outer box 1 by dampers 45, 45 ′, 46, 46 ′ (and suspensions 27, 28). The drum 20, the motor 22, the liquid balancer 23, and the drying unit 24 are examples of members that are elastically supported together. Hereinafter, a configuration including these members (water tank 40, drum 20, motor 22, liquid balancer 23, drying unit 24, etc.) that vibrates with the water tank 40 in the washing process or the drying process is referred to as a load 51. A weight body obtained by adding the load load 51 and the washing load 34 is referred to as a vibrating body load 52.

  5 and 7 show the position of the center of gravity of the load 51 as g2, the position of the center of gravity of the laundry load 34 when the laundry of the rated weight is put in as g0, and the position of the center of gravity of the vibrator load 52 at this time as G2. In the second embodiment of the present invention, the position g0 of the center of gravity of the washing load 34 exists in front of and below the position g2 of the center of gravity of the load 51. The center of gravity of the vibrating body load 52 is a point G2 on a line segment connecting the position g0 of the center of gravity of the washing load 34 and the position g2 of the center of gravity of the load load 51. Here, as shown in FIG. 5, the dampers 45 and 45 ′ support the front side of the position G2 in the front-rear direction (P3 and P4 exist ahead of the position G2 in the front-rear direction), and the dampers 46 and 46 ′. Are arranged so as to support the rear side of the position g2 (P5 and P6 exist behind the position g2 in the front-rear direction). In this way, the position of the center of gravity of the vibrating body load 52 is reliably arranged in a quadrangle having four points P3, P4, P5, and P6 in the front-rear and left-right directions. Dynamic displacement can be reduced. Further, the dampers 45, 45 ', 46, 46' support the same height position as the position g2 in the height direction (P3, P4, P5, P6 exist at the same height as the position g2 in the height direction). Arrange to do. By doing this, the center of gravity of the vibrator load 52 moves downward when the washing load 34 is applied, so that it is surely positioned below the axis connecting the positions P3, P4, P5, and P6. Thus, the vibration reduction effect of the water tank 40 can be obtained. Here, if the dampers 45, 45 ', 46, 46' are configured to support a position higher than the position g2 with respect to the height direction, the tank tank with respect to the axis connecting the positions P3, P4, P5, P6 accordingly. Since the change in the horizontal direction of the position of the center of gravity of the vibrating body load 52 due to the rotation can be increased, the vibration reduction effect can be improved.

  In the drum type washing machine according to the second embodiment of the present invention, in the washing process such as the washing process, the rinsing process, the dehydration process, and the drying process, the washing load 34 is included in the water tank 40, and The position of the center of gravity exists in front of and below g2, and the position of the center of gravity of the vibrating body load 52 in the vertical direction also exists below the axis connecting the positions P3, P4, P5, and P6. Here, when the horizontal position of the center of gravity of the vibrating body load 52 is displaced, a rotating moment about the axis connecting the positions P3, P4, P5, and P6 is generated, and the water tank 40 rotates. When the water tank 40 rotates, the horizontal distance between the axis connecting each of the positions P3, P4, P5, and P6 and the position of the center of gravity of the vibrating body load 52 decreases, so the moment for rotating the water tank 40 is also small. Become. For this reason, even when there is a change in the position of the center of gravity of the vibrating body load 52, the vibration caused by the fluctuation does not increase, and the vibration of the water tank 40 is small even in the washing operation. , 46, 46 ′ and suspension 27, 28, it is possible to prevent the generation of noise due to the propagation of vibrations to the outer box 1 and the collision of the water tank 40 with the outer box 1.

[Third embodiment of the present invention]
Next, a drum type washing machine according to a third embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a schematic longitudinal sectional view of the drum type washing machine according to the third embodiment of the present invention as seen from the side, and FIG. 9 is a schematic longitudinal sectional view as seen from the side at a position different from FIG. FIG. 10 is a schematic longitudinal cross-sectional view seen from the front showing a water tank support structure with a damper that supports the front side of the water tank on the left half, and a water tank support structure with a damper that supports the rear side of the water tank on the right half. . In addition, about this 3rd embodiment, the same code | symbol is attached | subjected about the member same as 2nd embodiment mentioned above, and description is abbreviate | omitted.

  In the drum type washing machine according to the third embodiment of the present invention, a damper mounting portion 61, to which one end of dampers 65 and 65 'to be described later is connected to the upper surface of the bottom base 3 covering the lower side of the outer box 1, 61 'and damper attachment portions 62, 62' to which one ends of the dampers 66, 66 'are connected are provided. As shown in FIGS. 8 and 9, the damper mounting portions 61 and 61 'are on the front side of the base 3 (left side in FIGS. 8 and 9), and the damper mounting portions 62 and 62' are on the rear side of the base 3 (see FIG. 8). 8 and the right side in FIG. Further, as shown in FIG. 10, the damper mounting portion 61 is arranged on the left side and the damper mounting portion 62 ′ is on the right side, and a vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. On the other hand, the damper mounting portion 61 and the damper mounting portion 61 ′ are arranged so that the damper mounting portion 62 and the damper mounting portion 62 ′ are line symmetric. Further, when viewed from the side, the damper mounting portion 61 and the damper mounting portion 61 ′ and the damper mounting portion 62 and the damper mounting portion 62 ′ are configured at the same position.

  In addition, a water tank 60 having a bottomed cylindrical shape is disposed inside the outer box 1 so that the rear side thereof is inclined downward by 5 to 30 ° with respect to the horizontal plane. The water tank 60 is configured by connecting a front part 60a that forms the front side with respect to the axial direction and a rear part 60b that forms the rear side with respect to the axial direction of the water tank 60 with screws 60c. The front portion 60a is provided with a suspension mounting portion 12 to which one end of suspensions 27 and 28, which will be described later, is connected to the upper outer peripheral surface thereof. Moreover, as shown in FIG. 8, the front part 60a is provided with a water tank opening 60d that opens to face the outer box opening 1a. Similarly to the second embodiment, a door packing 14 is attached to the water tank opening 60d so as to connect the respective openings in a watertight manner to the outer box opening 1a.

  As shown in FIG. 9, a drying unit 73 that dries the laundry in the drying process is provided in the outer peripheral space of the water tank 60. The drying unit 73 includes a suction port 73a that is a suction port for the air in the water tank 60, a dehumidifier 73b that dehumidifies the air sucked from the suction port 73a, a blower fan unit 73c that sucks the air dehumidified by the dehumidifier 73b, The heater part 73d which heats the air discharged by the ventilation fan part 73c, and the discharge port 73e which is the discharge port to the air heated by the heater part 73d in the water tank 60 are provided. In the third embodiment, the suction port 73a and the dehumidifier 73b are arranged on the right side of the water tank 60 for the sake of simplicity. However, the arrangement positions of the suction port 73a and the dehumidifier 73b are not limited to this location.

  Further, as shown in FIGS. 8 and 9, damper mounting portions 63 and 63 ′ to which one end of dampers 65 and 65 ′, which will be described later, are connected are arranged on the front outer portion 60 a. As shown in FIGS. 8 and 9, damper mounting portions 64 and 64 ′ to which one end of dampers 66 and 66 ′, which will be described later, are connected are arranged on the rear surface of the rear portion 60 b. As shown in FIG. 10, the damper mounting portion 64 is arranged on the left side and the damper mounting portion 64 ′ is on the right side, and with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. Thus, the damper mounting portion 63 and the damper mounting portion 63 ′ are arranged so that the damper mounting portion 64 and the damper mounting portion 64 ′ are line symmetric. Further, when viewed from the side, the damper mounting portion 63 and the damper mounting portion 63 ′ and the damper mounting portion 64 and the damper mounting portion 64 ′ are configured at the same position.

  As shown in FIG. 8, suspensions 27 and 28 that suppress vibrations in the front-rear direction of the water tank 60 are disposed above the outside of the water tank 60. One end of each of the suspension 27 and the suspension 28 is connected to the suspension mounting portion 12 provided on the outer peripheral surface of the water tank 60, and the other end is connected to the connecting member 8 and the connecting member 9 fixed below the top surface 2. . As described above, since the suspensions 27 and 28 are suspended and supported elastically, it is possible to make it difficult for vibrations from the water tank 60 to propagate to the outer box 1 and thus to transmit vibrations to the floor.

  Four dampers 65, 65 ′, 66, 66 ′ serving as buffer means for elastically pushing up and supporting the water tank 60 from below are arranged below the water tank 60. The dampers 65, 65 ′, 66, 66 ′ are respectively provided with elastic members 67, 67 ′, 68, 68 ′ on the damper mounting portions 61, 61 ′, 62, 62 ′ provided on one end of the bottom base 3. And the other end is connected to damper mounting portions 63, 63 ′, 64, 64 ′ provided on the outer peripheral surface and the back surface of the water tank 60 via elastic members 69, 69 ′, 70, 70 ′, respectively. The Thus, the dampers 65, 65 ', 66, 66' elastically push up and support the water tank 60, and the dampers 65, 65 ', 66, 66' are elastically connected to the water tank 60 and the outer box 1. Since it is carried out via the members 67, 67 ′, 68, 68 ′, 69, 69 ′, 70, 70 ′, the propagation of vibration from the water tank 60 to the outer box 1 and the transmission of vibration to the floor are generated. Can be difficult.

  As shown in FIG. 10, the damper 65 supports the left side of the water tank 60 when viewed from the front, and the damper 66 ′ supports the right side of the water tank 60 when viewed from the front. Further, as shown in FIG. 10, when viewed from the front, the damper mounting portion 61 is on the left side with respect to the damper mounting portion 63, and the damper mounting portion 62 ′ is on the right side with respect to the damper mounting portion 64 ′. Further, as described above, with respect to the vertical axis passing through the center of the drum type washing machine in the cross-sectional view of FIG. 10, the damper mounting portion 61 and the damper mounting portion 61 ′ and the damper mounting portion 62 and the damper mounting portion 62 ′, the damper mounting portion 63 and the damper mounting portion 63 ′, and the damper mounting portion 64 and the damper mounting portion 64 ′ are arranged in line symmetry. That is, the dampers 65, 65 ′, 66, 66 ′ are attached so as to be symmetrical in the attached state with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG.

  Further, when viewed from the side, the damper mounting portion 61 and the damper mounting portion 61 ′, the damper mounting portion 62 and the damper mounting portion 62 ′, the damper mounting portion 63 and the damper mounting portion 63 ′, and the damper are provided. The mounting portion 64 and the damper mounting portion 64 ′ are arranged so that the front and rear directions thereof are at the same position, and the damper mounting portions 61 and 61 ′ are damper mounting portions with respect to the damper mounting portions 63 and 63 ′, respectively. 62 and 62 'are arrange | positioned so that it may become vertically downward with respect to the damper attachment parts 64 and 64', respectively.

  That is, the P7-P8 axis (see FIG. 10) connecting the connection position P7 (see FIG. 10) between the damper mounting portion 63 and the damper 65 and the connection position P8 (see FIG. 10) between the damper mounting portion 63 ′ and the damper 65 ′. ) And a P9-P10 axis (see FIG. 10) connecting the connection position P9 (see FIG. 10) between the damper mounting portion 64 and the damper 66 and the connection position P10 (see FIG. 10) between the damper mounting portion 64 ′ and the damper 66 ′. ) Are arranged in parallel with the horizontal axis that coincides with the left-right direction of the drum-type washing machine. Here, the damper mounting portions 61 and 61 ′ are in front of the damper mounting portions 63 and 63 ′, respectively, and the damper mounting portions 62 and 62 ′ are in the rear of the damper mounting portions 64 and 64 ′, respectively. The vibration in the front-rear direction of the water tank 60 can be reduced. Further, the connection position P9 and the connection position P10 are arranged so as to be on the back surface of the water tank 60, and the distance in the front-rear direction from the position of the center of gravity of the vibrator load 72 described later can be increased. The rotation due to the upward / downward displacement and the downward / downward displacement of the back side can be reduced.

  In this drum type washing machine, a water tank 60 (damper mounting portions 63, 63 ', 64, 64' and suspension mounting portion 12) is disposed in the outer box 1 by dampers 65, 65 ', 66, 66' (and suspensions 27, 28). The drum 20, the motor 22, the liquid balancer 23, and the drying unit 73 are examples of members that are elastically supported together. Hereinafter, a configuration including these members (the water tank 60, the drum 20, the motor 22, the liquid balancer 23, the drying unit 73, etc.) that vibrates with the water tank 60 in the washing process or the drying process is referred to as a load 71. A weight body obtained by adding the load load 71 and the washing load 34 is referred to as a vibrating body load 72.

  8 and 10 show the position of the center of gravity of the load load 71 as g3, the position of the center of gravity of the laundry load 34 when the laundry of the rated weight is loaded as g0, and the position of the center of gravity of the vibrator load 72 at this time as G3. In the third embodiment of the present invention, the position g0 of the center of gravity of the washing load 34 exists in front of and below the position g3 of the center of gravity of the load load 71. The center of gravity of the vibrating body load 72 is a point G3 on a line segment connecting the position g0 of the center of gravity of the washing load 34 and the position g3 of the center of gravity of the load load 71. Here, as shown in FIG. 8, the dampers 65 and 65 ′ support the front side of the position G3 in the front-rear direction (P7 and P8 exist ahead of the position G3 in the front-rear direction), and the dampers 66 and 66 ′. Supports the rear side of the position g3 (P9 and P10 exist behind the position g3 in the front-rear direction). In this way, the position of the center of gravity of the vibrating body load 72 is reliably arranged in a quadrangle having four points P7, P8, P9, and P10 in the front-rear and left-right directions. Dynamic displacement can be reduced.

  Further, unlike the second embodiment, the dampers 65 and 65 'support a position lower than the position g3 in the height direction (P7 and P8 exist at positions lower than the position g3 in the height direction). The dampers 66 and 66 'are arranged so as to support a position higher than the position g3 in the height direction (P9 and P10 are present at a position higher than the position g2 in the height direction). The positions P7, P8, P9, and P10 are arranged so as to exist on the same plane, and in this embodiment, the position g3 is configured to exist on a plane that passes through the positions P7, P8, P9, and P10. Here, if the plane passing through the positions P7, P8, P9, and P10 is configured to be higher than the position g3 with respect to the height direction, the amount of the aquarium with respect to the axis connecting the positions P7, P8, P9, and P10 is increased accordingly. Since the change in the horizontal direction of the position of the center of gravity of the vibrating body load 72 due to the rotation can be increased, it is possible to improve the vibration reduction effect.

  In the drum type washing machine according to the third embodiment of the present invention, the washing load 34 is included in the water tank 60 in the washing process such as the washing process, the rinsing process, the dehydration process, and the drying process. The position of the center of gravity exists in front of and below G3, and the position of the center of gravity of the vibrator load 72 in the vertical direction also exists below the axis connecting the positions P7, P8, P9, and P10. Here, when the horizontal position of the center of gravity of the vibrating body load 72 is displaced, a turning moment about an axis connecting each of the positions P7, P8, P9, and P10 is generated, and the water tank 60 rotates. When the water tank 60 rotates, the horizontal distance between the axis connecting each of the positions P7, P8, P9, and P10 and the position of the center of gravity of the vibrator load 72 decreases, so that the moment that causes the water tank 60 to rotate is also changed. Get smaller. For this reason, even when there is a change in the position of the center of gravity of the vibrating body load 72, the vibration caused thereby does not increase, and the vibration of the water tank 60 is small even in the washing operation, and as a result, the dampers 65, 65 ′ of the water tank 60 are small. , 66, 66 'and suspensions 27, 28, it is possible to prevent the generation of noise due to the propagation of vibrations to the outer case 1 and the collision of the water tank 60 with the outer case 1.

  Further, in the drum type washing machine of the present embodiment, the connection positions P7 and P8 with the dampers 65 and 65 ′ on the front side are arranged below the water tank 60 that is not affected by the diameter position that is the maximum width of the water tank 60. At the same time, by arranging the connection positions P9 and P10 with the dampers 66 and 66 ′ on the rear side on the back side of the water tank 60, the width dimension of the outer box 1 can be suppressed. Further, by arranging the rear dampers 66 and 66 ′ by using the gap between the back surface of the water tank 60 and the back surface of the outer box 1 due to the arrangement of the motor 22 at the rear of the water tank 60 and the inclination of the water tank 60, the depth dimension is increased. It can also be suppressed.

[Fourth embodiment of the present invention]
Next, a drum type washing machine according to a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 11 is a schematic longitudinal sectional view of the drum type washing machine according to the third embodiment of the present invention as seen from the side, and FIG. 12 is a schematic longitudinal sectional view as seen from the side at a position different from FIG. FIG. 13 is a schematic longitudinal sectional view as seen from the front showing a water tank support structure by a damper. In addition, about this 4th embodiment, about the member same as 3rd embodiment mentioned above, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 11, the drum type washing machine according to the fourth embodiment of the present invention includes an outer box 80 whose bottom is covered with a bottom base 81. On the front side of the outer box 80, as in the third embodiment, the open / close door 4 that opens and closes the outer box opening 80a that opens toward the front is pivoted to the outer box 80 by a hinge (not shown). Can be attached freely. A damper mounting portion 83 to which one end of a later-described damper 87 is connected and damper mounting portions 84 and 84 ′ to which one ends of the dampers 88 and 88 ′ are connected are provided on the upper surface of the bottom base 81. As shown in FIGS. 11 and 12, the damper mounting portion 83 is on the front side of the base 81 (left side in FIGS. 11 and 12), and the damper mounting portions 84 and 84 ′ are on the rear side of the base 81 (FIGS. 11 and 12). 12 on the right side). Further, as shown in FIG. 13, the damper mounting portion 84 is arranged on the left side and the damper mounting portion 84 ′ is on the right side, and a vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. On the other hand, the damper mounting portion 84 and the damper mounting portion 84 'are arranged so as to be line symmetric. Further, the damper mounting portion 84 and the damper mounting portion 84 ′ are configured to be at the same position when viewed from the side.

  Further, inside the outer box 80, a water tank 82 having a bottomed cylindrical shape is arranged such that the rear side thereof is inclined downward by 5 to 30 ° with respect to the horizontal plane. The water tank 82 is configured by connecting a front part 82a that forms the front side with respect to the axial direction and a rear part 82b that forms the rear side with respect to the axial direction of the water tank 82 with screws 82c. The front portion 82a is provided with a suspension mounting portion 12 to which one end of suspensions 27 and 28, which will be described later, is connected to the upper outer peripheral surface thereof. Moreover, as shown in FIG. 11, the front part 82a is provided with a water tank opening 82d that opens facing the outer box opening 80a. Similarly to the third embodiment, the door packing 14 is attached to the water tank opening 82d so as to connect the respective openings in a watertight manner to the outer box opening 80a.

  Further, as shown in FIGS. 11 and 12, the front portion 82a is provided with a damper attachment portion 85 to which one end of a later-described damper 87 is connected. As shown in FIGS. 11 and 12, damper mounting portions 86 and 86 ′ to which one end of dampers 88 and 88 ′, which will be described later, are connected are disposed on the rear portion 82 b. As shown in FIG. 13, the damper mounting portion 86 is arranged on the left side and the damper mounting portion 86 ′ is on the right side, and with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG. Thus, the damper mounting portion 85 and the damper mounting portion 85 ′ are arranged so that the damper mounting portion 86 and the damper mounting portion 86 ′ are line symmetric. Further, when viewed from the side, the damper mounting portion 85 and the damper mounting portion 85 ′ and the damper mounting portion 86 and the damper mounting portion 86 ′ are configured at the same position.

  As shown in FIG. 11, suspensions 27 and 28 that suppress vibration in the front-rear direction of the water tank 82 are disposed above the outside of the water tank 82. One end of each of the suspension 27 and the suspension 28 is connected to the suspension mounting portion 12 provided on the outer peripheral surface of the water tank 82, and the other end is connected to the connecting member 8 and the connecting member 9 fixed to the lower surface of the top surface 2. . As described above, since the suspensions 27 and 28 are suspended and supported elastically, it is possible to make it difficult for vibrations from the water tank 82 to propagate to the outer box 80 and hence to transmit vibrations to the floor.

  Three dampers 87, 88, 88 ′ serving as buffer means for elastically pushing up and supporting the water tank 82 from below are disposed below the water tank 82. The dampers 87, 88, 88 ′ are connected at one end to damper mounting portions 83, 84, 84 ′ provided on the bottom surface of the base 81 via elastic members 89, 90, 90 ′, and the other end Are connected to damper mounting portions 85, 86, 86 ′ provided on the front surface and the back surface of the water tank 82 via elastic members 91, 92, 92 ′, respectively. In this way, the dampers 87, 88, 88 ′ elastically push up and support the water tank 82, and the dampers 87, 88, 88 ′, the water tank 82 and the outer box 80 are connected to the elastic members 89, 90, 90. Since it is performed via ', 91, 92, 92', it is possible to make it difficult for vibrations from the water tank 82 to propagate to the outer box 80 and hence to transmit vibrations to the floor.

  As shown in FIG. 13, the damper 87 supports the center of the water tank 82 as viewed from the front, the damper 88 supports the left side, and the damper 88 ′ supports the right side. Further, as shown in FIG. 13, when viewed from the front, the damper mounting portion 83 is vertically above the damper mounting portion 85, and the damper mounting portion 84 is on the left side with respect to the damper mounting portion 86. The damper mounting portion 84 ′ is arranged on the right side with respect to the damper mounting portion 86 ′, and as described above, with respect to the vertical axis passing through the center of the drum type washing machine in the cross-sectional view of FIG. 13. Thus, the damper mounting portion 84 and the damper mounting portion 84 'and the damper mounting portion 86 and the damper mounting portion 86' are arranged so as to be line symmetric. That is, the dampers 88 and 88 'are attached so as to be symmetrical in the attached state with respect to the vertical axis passing through the center of the drum type washing machine in the sectional view of FIG.

  Further, the damper mounting portion 84 and the damper mounting portion 84 ′ and the damper mounting portion 86 and the damper mounting portion 86 ′ are arranged so that their front and rear directions are at the same position, and the damper mounting portion 83 is disposed on the damper mounting portion 85. On the other hand, the damper mounting portions 84 and 84 'are arranged so as to be vertically downward with respect to the damper mounting portions 86 and 86', respectively.

  That is, the P12-P13 shaft connecting the connecting position P12 (see FIG. 13) between the damper mounting portion 86 and the damper 88 and the connecting position P13 (see FIG. 13) between the damper mounting portion 86 ′ and the damper 88 ′ is the drum type laundry. It is arranged so as to be parallel to the horizontal axis that coincides with the horizontal direction of the machine. Here, the damper mounting portion 83 is disposed in front of the damper mounting portion 85, and the damper mounting portions 84 and 84 ′ are disposed behind the damper mounting portions 86 and 86 ′, respectively. In this case, the vibration in the front-rear direction of the water tank 82 can be reduced. Further, the connection position P11, the connection position P12, and the connection position P13 are arranged so as to be the front surface and the back surface of the water tank 82, and the distance in the front-rear direction from the position of the center of gravity of the vibrator load 94 described later can be increased. It is possible to reduce the rotation caused by the upward / downward displacement of the front side of the water tank 82 and the downward / upward displacement of the rear side.

  In this drum type washing machine, the outer tank 80 is elastically supported by the dampers 87, 88, 88 ′ (and the suspensions 27, 28) together with the water tank 82 (including the damper mounting portions 85, 86, 86 ′ and the suspension mounting portion 12). Examples of the member include the drum 20, the motor 22, the liquid balancer 23, and the drying unit 73. Hereinafter, a configuration including these members (water tank 82, drum 20, motor 22, liquid balancer 23, drying unit 73, etc.) that vibrates with the water tank 82 in the washing process or the drying process is referred to as a load load 93. A weight body obtained by adding the load load 51 and the washing load 34 is referred to as a vibrator load 94.

  11 and 13 show the position of the center of gravity of the load 93 as g4, the position of the center of gravity of the laundry load 34 when the laundry of the rated weight is loaded as g0, and the position of the center of gravity of the vibrator load 94 at this time as G4. In the fourth embodiment of the present invention, the position g0 of the center of gravity of the washing load 34 exists in front of and below the position g4 of the center of gravity of the load load 93. The center of gravity of the vibrating body load 94 is a point G4 on a line segment connecting the position g0 of the center of gravity of the washing load 34 and the position g4 of the center of gravity of the load load 93. Here, as shown in FIG. 11, the damper 87 supports the front of the position G4 in the front-rear direction (P11 exists ahead of the position G4 in the front-rear direction), and the dampers 88, 88 ′ are further than the position g4. The rear side is supported (P12 and P13 exist behind the position g4 in the front-rear direction).

  Further, the damper 87 supports a position lower than the position g4 in the height direction (P11 exists at a position lower than the position g4 in the height direction), and the dampers 88 and 88 ′ are positioned from the position g4 in the height direction. Is arranged so as to support a higher position (P12 and P13 are present at a position higher than position g4 in the height direction). The positions P11, P12, and P13 are arranged so as to exist on the same plane, and in the present embodiment, the position g4 is configured to exist on a plane that passes through the positions P11, P12, and P13. Here, if the plane passing through the positions P11, P12, and P13 is configured to be higher than the position g3 in the height direction, the vibration caused by the rotation of the water tank with respect to the axis connecting the positions P11, P12, and P13 accordingly. Since the horizontal change in the position of the center of gravity of the body load 72 can be increased, it is possible to improve the vibration reduction effect.

  In the drum type washing machine according to the fourth embodiment of the present invention, in the washing process such as the washing process, the rinsing process, the dehydration process, and the drying process, the washing load 34 is included in the water tank 82, The position of the center of gravity exists in front of and below G4, and the position of the center of gravity of the vibrator load 94 in the vertical direction also exists below the axis connecting the positions P11, P12, and P13. Here, when the horizontal position of the center of gravity of the vibrating body load 94 is displaced, a turning moment about an axis connecting each of the positions P11, P12, and P13 is generated, and the water tank 82 rotates. When the water tank 82 rotates, the horizontal distance between the axis connecting each of the positions P11, P12, and P13 and the position of the center of gravity of the vibrating body load 94 decreases, so that the moment for rotationally displacing the water tank 82 also decreases. . For this reason, even when there is a change in the position of the center of gravity of the vibrating body load 94, the vibration caused thereby does not increase, and the vibration of the water tank 82 is small even in the washing operation. As a result, the dampers 87, 88, It is possible to prevent the generation of noise due to the propagation of vibrations to the outer box 80 through the 88 'and the suspensions 27 and 28, the collision of the water tank 82 with the outer box 80, and the like.

  Further, in the drum type washing machine of the present embodiment, the connection position P11 with the damper 87 on the front side is arranged on the front surface of the water tank 82 that is not affected by the diameter position that is the maximum width of the water tank 82, and By arranging the connection positions P12, P13 with the rear dampers 88, 88 ′ on the back side, the width dimension of the outer box 80 can be suppressed. Further, a damper 87 on the front side is arranged by using a lower space provided in the outer box opening 80a in front of the water tank 82, the rear surface of the water tank 82 and the outside are arranged by the arrangement of the motor 22 behind the water tank 82 and the inclination of the water tank 82. An increase in the depth dimension can be suppressed by arranging the rear dampers 88 and 88 ′ using the gap in the depth with the back surface of the box 80.

  Further, in the fourth embodiment to the fourth embodiment, the drum type washing machine is configured so that the center of gravity of the load is present on a plane passing through the connection positions of the damper and the water tank, It is on at least one plane among planes including an axis connecting between two of the connection positions of the damper and the water tank and a horizontal line perpendicular to the axis, or from the at least one plane If the position of the center of gravity of the load load is arranged at a lower position, the horizontal distance between the axis of the water tank and the position of the center of gravity of the vibrating body load becomes small due to the rotational displacement of the water tank. The moment becomes smaller and vibration can be kept small.

  The present invention can be applied to a drum-type washing machine including a buffer unit that elastically pushes up and supports a water tank.

1 is an external perspective schematic view of a drum type washing machine according to a first embodiment of the present invention. It is a schematic longitudinal cross-sectional view from the side of the drum type washing machine which concerns on 1st embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side in the position different from FIG. 2 of the drum type washing machine which concerns on 1st embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the support structure by the damper of the water tank from the front of the drum type washing machine which concerns on 1st embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side of the drum type washing machine which concerns on 2nd embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side in the position different from FIG. 5 of the drum type washing machine which concerns on 2nd embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the support structure by the damper of the water tank from the front of the drum type washing machine which concerns on 2nd embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side of the drum type washing machine which concerns on 3rd embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side in the position different from FIG. 8 of the drum type washing machine which concerns on 3rd embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the support structure by the damper of the water tank from the front of the drum type washing machine which concerns on 3rd embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side of the drum type washing machine which concerns on 4th embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side in the position different from FIG. 11 of the drum type washing machine which concerns on 4th embodiment of this invention. It is a schematic longitudinal cross-sectional view which shows the support structure by the damper of the water tank from the front of the drum type washing machine which concerns on 4th embodiment of this invention. It is a schematic longitudinal cross-sectional view from the side of the conventional drum type washing machine. It is a schematic longitudinal cross-sectional view from the side in the position different from FIG. 14 of the conventional drum type washing machine.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 80: Outer box 1a, 80a: Outer box opening part 10, 60, 82: Water tank 10d, 60d, 82d: Water tank opening part 20: Drum 20a: Drum opening part 22: Motor 23: Liquid balancer 24, 73: Drying Unit 27, 28: Suspension 30, 30 ', 45, 45', 46, 46 ', 65, 65', 66, 66 ', 87, 88, 88': Damper 33, 51, 71, 93: Load 34 : Washing load 35, 52, 72, 94: Vibrating body load P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P11, P12, P13: Connection position g0: Gravity position g1 of the washing load , G2, g3, g4: center of gravity position of load load G1, G2, G3, G4: center of gravity position of vibrating body load

Claims (8)

An outer box provided with an outer box opening that opens to the front, a water tank having a water tank opening that opens opposite the outer box opening, and disposed in the outer box; and the water tank opening, A drum that has a drum opening that opens oppositely and is enclosed in the water tank; an electric motor that rotationally drives the drum; and a plurality of buffering means that elastically supports the water tank from below in the outer box. In a drum-type washing machine
The position of the center of gravity of the load load, which includes the water tank, the drum, and the electric motor and is elastically supported in the outer box by the plurality of buffering units, is the two buffering units of the plurality of buffering units. The plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of tanks so as to be on at least one plane. A drum-type washing machine characterized in that a buffer means is arranged. An outer box provided with an outer box opening that opens to the front, a water tank having a water tank opening that opens opposite the outer box opening, and disposed in the outer box; and the water tank opening, A drum that has a drum opening that opens oppositely, and is enclosed in the water tank; an electric motor that rotationally drives the drum; and two buffering means that elastically support the water tank from below in the outer box. In a drum-type washing machine
The position of the center of gravity of the load that includes the water tank, the drum, and the electric motor and is elastically supported in the outer box by the two buffer means is between the connection positions of the two buffer means to the water tank. A drum-type washing machine characterized in that the two buffering means are arranged so as to be on a plane including an axis connecting the two and a horizontal line perpendicularly intersecting the axis or at a position lower than the plane. . In the drum type washing machine according to claim 2,
The two buffering means are arranged such that the connection positions of the two buffering means to the water tank are both at the same height as the position of the center of gravity of the load load or higher than the position of the center of gravity of the load load. A drum-type washing machine characterized by being arranged. In the drum type washing machine according to claim 2 or claim 3,
Connection position of the two shock absorbers to the water tank with respect to a laundry load composed of laundry and washing water of rated weight accommodated in the water tank, and a vibrating body load composed of the load load and the laundry load The two buffering means are arranged so that a projection axis onto a horizontal plane of an axis connecting the two passes between a center of gravity position of the load load and a projection point of the center of gravity position of the vibrating body load onto the horizontal plane. A drum-type washing machine. An outer box provided with an outer box opening that opens to the front, a water tank having a water tank opening that opens opposite the outer box opening, and disposed in the outer box; and the water tank opening, A drum having a drum opening that opens oppositely and enclosed in the water tank; an electric motor that rotationally drives the drum; and three or more buffering means that elastically support the water tank in the outer box from below. In a drum-type washing machine equipped with
The position of the center of gravity of the load that includes the water tank, the drum, and the electric motor and is elastically supported in the outer box by the three or more buffering means is the position of the water tank of the three or more buffering means. The three or more buffering means are arranged so as to be on at least one plane of planes passing through at least three connection positions or lower than the at least one plane. Drum type washing machine. In the drum type washing machine according to claim 5,
A load load provided with the water tub, the drum, and the electric motor and elastically supported in the outer box by the three or more buffering means, and a laundry and washing water having a rated weight accommodated in the water tub And at least one shock absorber among the three or more shock absorbers is located at the position of the center of gravity of the vibrator load with respect to the front-rear direction. Or at least one of the three or more buffering means is the same as the position of the center of gravity of the load load in the front-rear direction or the load load. A drum-type washing machine characterized by supporting the rear of the center of gravity of the drum. In the drum type washing machine according to claim 5 or 6,
The water tank is inclined with respect to the front side having the water tank opening so that the rear side on which the electric motor for rotating the drum is arranged is downward, and is the same as the position of the center of gravity of the load load or the A drum-type washing machine, wherein a connection position between the water tank and the at least one buffering means that supports the rear of the center of gravity of the load is provided on the back surface of the water tank. In the drum type washing machine according to claim 5 or 6,
A connection position between the water tank and the at least one buffer means that supports the front of the center of gravity of the vibrating body load or the front of the center of gravity of the vibrating body load is provided on the front surface of the water tank. Drum-type washing machine.

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