JP2016163635A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contribute to compactification and large capacity by securing a gap between an outer case and a water tub efficiently, while achieving reinforcement of side plates by forming concave-shaped or convex-shaped throttle parts at the side plates of the outer case.SOLUTION: A washing machine includes: an outer case having left and right side plates; a water tub disposed via an elastic support mechanism in a state where a front opening part is facing frontward in the outer case; and a rotary tub disposed in the water tub in a rotatable manner and rotated by driving means. Throttle parts for reinforcement which are concave-shaped for protruding to the inside of the outer case or convex-shaped for protruding to the outside of the outer case are provided on the side plates. In the neighborhood where a gap between an inner surface of the side plate and an outer surface of a peripheral wall part of the water tub becomes minimum on the side plate, the concave-shaped throttle parts protruding to the inside of the outer case are not provided.SELECTED DRAWING: Figure 2

Description

  Embodiments described herein relate generally to a washing machine.

  In recent years, for example, a drum-type washing machine is required to be compact due to restrictions on the installation location and the like, and a large-capacity one that can increase the amount of laundry that can be washed at one time is desired. In order to increase the capacity of the washing machine, it is necessary to increase the size of the rotating tub for storing the laundry. When the size of the rotating tub is increased, it is necessary to increase the size of the water tub for storing the rotating tub. The outer box that forms the outer shell of the machine also becomes larger. In order to increase the capacity without increasing the size of the outer box, it is necessary to reduce the gap between the rotating tank and the water tank and the gap between the water tank and the outer box. However, if the gap is too small, there is a concern that the water tank may easily hit the outer box and the water tank may easily hit the water tank due to, for example, shaking of the rotating tank caused by unbalanced laundry during dehydration.

  Also, in the design of a lightweight and highly rigid outer box against the increase in capacity of the washing machine, thin plate steel plates are used for the left and right side plates, and these both side plates are recessed or projecting toward the inner side of the outer box. It is also important to provide a convex reinforcing restricting portion that protrudes to the outside of the outer box.

JP 2010-63893 A

  Therefore, while reinforcing the side plate by forming a concave or convex constriction on the side plate of the outer box, it is possible to efficiently secure a gap between the outer box and the water tank, contributing to compactness and large capacity. Provide a washing machine capable of doing.

  The washing machine of the present embodiment includes an outer box having left and right side plates, a water tank disposed in the outer box through an elastic support mechanism with the front opening facing forward, and is rotatable in the water tank. And a rotating tub that is rotated by a driving means. The side plate is provided with a squeezing portion for reinforcing reinforcement that protrudes toward the inner side of the outer box or protrudes toward the outer side of the outer box. In the side plate, in the vicinity where the gap between the inner surface of the side plate and the outer surface of the peripheral wall portion of the water tank becomes the smallest, there is no concave throttle portion protruding toward the inner side of the outer box.

The perspective view which shows schematic structure of the water tank and side plate of the washing machine by 1st Embodiment. A longitudinal front view schematically showing the relationship between the aquarium and the side plate Longitudinal side view showing schematic configuration of washing machine Longitudinal side view showing the upper part of the water tank and rotating tank FIG. 1 equivalent view showing the second embodiment 2 equivalent diagram The right view which shows typically the relationship between the water tank and side plate of the washing machine by 3rd Embodiment.

Hereinafter, a plurality of embodiments of the washing machine will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component, and description is abbreviate | omitted.
(First embodiment)
A first embodiment will be described with reference to FIGS. First, in FIG.1 and FIG.3, the washing machine 1 is a drum type washing machine. The washing machine 1 includes an outer box 2 constituting an outer shell, a water tank 3 disposed in the outer box 2, and a rotating tank 4 rotatably disposed in the water tank 3. In addition, in FIG. 1, the rotation tank 4 is abbreviate | omitted. The outer box 2 includes a bottom plate 5 having a substantially rectangular shape, left and right side plates 6 and 7 (see FIG. 1) disposed on both left and right sides of the bottom plate 5, and a front plate 8 (in FIG. 3) By combining a left surface), a rear plate 9 disposed on the rear surface portion (right surface in FIG. 3), and a top plate 10 disposed on the top surface portion, a substantially rectangular box shape is formed.

  The front plate 8 constituting the front portion of the outer box 2 is formed in a slightly inclined shape with a front lowering, and a laundry entrance 11 is formed on the front plate 8 slightly upward. A door 12 for opening and closing the door is rotatably provided.

  The water tank 3 disposed in the outer box 2 includes a water tank main body 13 made of a synthetic resin having a bottomed cylindrical shape in which a bottom surface portion 13b on the rear side of the cylindrical tube portion 13a is closed, and the water tank main body 13 The connecting portion 15 is connected to an annular synthetic resin aquarium cover 14 disposed on the front opening side of the connecting portion 15. The aquarium 3 is elastically supported via an elastic support mechanism 16 made of a suspension so that the axis E direction thereof is in the front-rear direction and is slightly inclined forward. Therefore, the axis E of the water tank 3 is inclined forward and upward with respect to the horizontal plane.

  The aquarium cover 14 integrally has an overhanging portion 14b projecting inward at a front portion of a cylindrical tube portion 14a, and has a front opening 14c at the center of the overhanging portion 14b. An annular bellows 17 is provided between the front portion of the water tank cover 14 and the back side of the front plate 8 of the outer box 2, and the front opening 14 c of the water tank cover 14 communicates with the laundry entrance 11. Yes.

  Here, the structure of the connection part 15 part of the water tank main body 13 and the water tank cover 14 is demonstrated with reference also to FIG. A large diameter step portion 18 is formed at the front end portion of the cylindrical portion 13 a of the water tank body 13. The large diameter step portion 18 is formed in a step shape so as to slightly protrude outward in the radial direction so that the inner diameter is larger than the inner diameter of the cylindrical portion 13a. A fitting recess 19 having an opening on the rear side is provided on the outer peripheral side of the rear portion of the cylindrical portion 14a in the water tank cover 14, and an inner extension 19a that forms the inside of the fitting recess 19 projects rearward. ing.

  And the water tank cover 14 is connected with the front part of the water tank main body 13 by inserting the front-end | tip part of the large diameter step part 18 of the water tank main body 13 in the fitting recessed part 19 in the water tank cover 14, and making it fit. In this case, the inner extension 19 a of the water tank cover 14 is located inside the large diameter step 18 of the water tank body 13. The step-like convex portion 20 that forms the outside of the fitting concave portion 19 protrudes most outward in the radial direction of the water tank 3. In this case, the cylindrical portion 13a of the water tank main body 13 and the cylindrical portion 14a of the water tank cover 14 constitute a peripheral wall portion of the water tank 3, and the stepped convex portion 20 is located on the peripheral wall portion of the water tank 3 and outwards in the radial direction. It is the most prominent part.

  In this case, the inner peripheral surface 13c of the cylindrical portion 13a of the water tank body 13 made of synthetic resin has a draft angle so that the front opening side is larger in diameter than the bottom surface portion 13b due to die cutting during molding. Has been. In addition, the inner peripheral surface 14d of the cylindrical portion 14a of the synthetic resin water tank cover 14 is formed with a draft angle so that the rear opening side is larger in diameter than the front side because of the die-cutting relationship during molding. Yes. For this reason, in the water tank 3, the inner diameter of the connecting portion 15 portion between the tube portion 13 a of the water tank body 13 and the tube portion 14 a of the water tank cover 14 is formed larger than the other portions.

  The rotating tub 4 disposed in the water tank 3 includes a cylindrical body 22, a bottom member 23 provided so as to close the rear part of the body 22, and an end of the body 22 on the front opening side. The provided annular balance ring 24 forms a bottomed cylindrical shape whose rear side is closed. Similarly to the water tank 3, the rotating tank 4 is also arranged so that its axial direction is in the front-rear direction and is slightly inclined upward. The balance ring 24 is configured by a liquid balancer in which a liquid is sealed. The opening 24 a of the balance ring 24 communicates with the laundry entrance 11 through the front opening 14 c of the water tank 3. In the rotary tub 4, the laundry is accommodated through the laundry entrance / exit 11, the front opening 14 c of the water tub 3 and the opening 24 a of the balance ring 24 so that the laundry can be taken in and out.

  A front end portion of the rotating shaft 25 is connected to a central portion on the rear surface side of the bottom member 23 in the rotating tub 4. The rear end portion of the rotary shaft 25 protrudes rearward through a bearing housing 26 provided at the center portion of the bottom surface portion 13 b of the water tank 3. The rotary shaft 25 is rotatably supported by a bearing 27 provided in the bearing housing 26. The rear end portion of the rotary shaft 25 is connected to the rotor 29 of the motor 28 so as to rotate integrally. The stator 30 of the motor 28 is fixed to the outer peripheral portion of the bearing housing 26. The motor 28 includes a stator 30 and a rotor 29 rotated with respect to the stator 30. In this case, the motor 28 is constituted by an outer rotor type DC brushless motor. The rotating tub 4 is configured to be directly rotated by the rotor 29 of the motor 28. The motor 28 constitutes a driving unit that rotationally drives the rotating tub 4.

  The body 22 of the rotating tub 4 is made of, for example, a stainless steel plate formed in a cylindrical shape. A bottom member 23 is connected to the rear end portion by screwing, and a balance ring 24 is connected to the front end portion by screwing. The outer diameter of the bottom member 23 and the outer diameter of the balance ring 24 are set to be substantially the same. And the trunk | drum 22 has the large diameter part 31 whose outer diameter is larger than these bottom part members 23 and the balance ring 24 in the intermediate part of the front-back direction of this. Therefore, the body 22 is formed in a so-called middle-bulged state in which the front and rear intermediate portions are formed larger in diameter than the front and rear ends where the balance ring 24 and the bottom member 23 are connected, and is called an expanding drum. Form.

  In the body 22, an outer diameter changing portion 32 that changes so that the outer diameter gradually decreases from the large diameter portion 31 toward the connecting portion with the balance ring 24 is formed at the front portion thereof, and also at the rear portion. An outer diameter changing portion 33 that changes so that the outer diameter gradually decreases from the large diameter portion 31 toward the connecting portion with the bottom member 23 is formed. Both the outer diameter changing part 32 at the front part and the outer diameter changing part 33 at the rear part are formed in a tapered shape.

  In this case, in the body 22, the starting point portion 34 that changes from the large diameter portion 31 that is the maximum outer diameter portion to the front outer diameter changing portion 32 is disposed in the vicinity of the connecting portion 15 between the water tank body 13 and the water tank cover 14. Yes. Further, in the body 22, the starting point portion 35 that changes from the large diameter portion 31 that is the maximum outer diameter portion to the rear outer diameter changing portion 33 is disposed near the bottom of the water tank body 13. A large number of dewatering holes 36 are formed in the body 22.

  Next, the structure of the left and right side plates 6 and 7 in the outer box 2 will be described mainly with reference to FIGS. In this case, since the left and right side plates 6 and 7 are basically symmetrical structures, the right side plate 7 will be mainly described.

  The side plate 7 is formed of a thin plate steel plate and has a substantially rectangular shape. The side plate 7 is provided with a plurality of throttle portions 37 for handle portions and a plurality of throttle portions 38 for reinforcement. In the side plate 7, the narrowing portion 37 for the handle portion is provided at a total of three locations, that is, the upper rear portion and the lower front and rear two locations. Each throttling portion 37 is rectangular and is formed in a concave shape protruding toward the inner side of the outer box 2 (side approaching the water tank 3), and a hand opening 37a is formed in the region.

  A plurality of reinforcing throttle portions 38 are provided in the upper portion and the lower portion of the side plate 7. Each throttle portion 38 has a rectangular shape extending in the front-rear direction, and is formed in a concave shape protruding toward the inner side of the outer box 2 (side approaching the water tank 3). In the side plate 7, the diaphragm part 38 for reinforcement and the diaphragm part 37 for handling are not provided in the middle part in the vertical direction, and this is used as a diaphragm part non-forming part 39.

  Here, as shown in FIG. 2, the gap between the inner surfaces of the left and right side plates 6, 7 and the outer surface of the peripheral wall portion of the water tank 3 (the cylindrical portion 13 a of the water tank body 13 and the cylindrical portion 14 a of the water tank cover 14) is It becomes the smallest in the vicinity of the left and right side portions of the stepped convex portion 20 of the connecting portion 15 in the water tank 3. A portion of the step-shaped convex portion 20 that is closest to the inner surfaces of the side plates 6 and 7 is referred to as a proximity portion 20a.

  In this embodiment, in the left and right side plates 6 and 7, the portion facing the proximity portion 20 a where the gap between the inner surface of the side plates 6 and 7 and the outer surface of the peripheral wall portion of the water tank 3 is the smallest is a concave shape. The throttle portions 37 and 38 are not provided, and are the throttle portion non-forming portion 39. The area | region of this throttle part non-formation part 39 is an area | region larger than the range which the said proximity part 20a in the water tank 3 moves at the time of a washing operation or a dehydration operation. Further, as shown in FIG. 1, the vertical width A1 of the throttle non-forming portion 39 is equal to the vertical width A2 of the concave throttle portion 38 and the distance between the top and bottom of two adjacent throttle portions 38. It is set wider than A3 (A1> A2, A3).

  In order to make the washing machine 1 easy to carry in and easy to install, the lateral width B1 (see FIG. 2) of the outer box 2 is desirably 610 mm or less, and is set to 600 mm in this embodiment. Further, the minimum gap C1 (see FIG. 2) between the inner surfaces of the side plates 6 and 7 and the outer peripheral surface of the water tank 3 is desirably 20 mm or less, and is set to 15 mm in this embodiment. And in order to accommodate a lot of clothes, it is necessary to ensure the internal capacity of the rotating tub 4, and the inner diameter of the maximum portion of the rotating tub 4 is desirably 530 mm or more, and is set to 540 mm in this embodiment. In consideration of the amount of collapse of the rotating tank 4 during high-speed dewatering, the inner diameter of the maximum part of the water tank 3 is desirably 540 mm or more, and is set to 550 mm in this embodiment. And when the internal diameter of the largest part of the water tank 3 is 550 mm, the largest external shape (proximity part 20a) of the water tank 3 is 570 mm.

According to the above-described embodiment, the following operational effects can be obtained.
The use of thin steel plates for the left and right side plates 6 and 7 in the outer box 2 reduces the weight of the outer box 2, and the left and right side plates 6 and 7 have a plurality of concave constricted portions 38 for reinforcement. By providing this, it is possible to improve the strength of the side plates 6 and 7, and to suppress generation of vibration and noise.

  In addition, in the left and right side plates 6, 7, the portion facing the proximity portion 20 a where the gap between the inner surface of the side plates 6, 7 and the peripheral wall portion outer surface of the water tank 3 is the smallest is provided in the outer box 2. Since there is no concave diaphragm portion protruding to the inside, a gap between the proximity portion 20a and the side plates 6 and 7 can be efficiently secured, contributing to compactness and large capacity. It becomes possible.

  The region of the throttle non-formation portion 39 on the left and right side plates 6 and 7 where the concave throttling portion 38 is not provided is on the outer surface of the peripheral wall portion of the water tank 3 and is the stepped projection closest to the inner surface side of the side plates 6 and 7. Even if the proximity part 20a moves in the vertical direction or the front-rear direction due to the shaking of the water tub 3 during the washing operation or the dehydration operation, the proximity part 20a is made larger than the range in which the proximity part 20a of the part 20 is movable. Can be prevented from hitting the inner surfaces of the side plates 6 and 7.

(Second Embodiment)
A second embodiment will be described with reference to FIGS. The second embodiment is different from the first embodiment described above in the following points. On the left and right side plates 6, 7, a convex throttle part 41 that protrudes to the outside of the outer box 2 is provided at a portion that is the throttle part non-forming part 39. The aperture 41 has a rectangular shape that is long in the front-rear direction. The vertical width A4 (see FIG. 5) is equal to the vertical width A2 (see FIG. 1) of the other concave aperture 38 and 2 adjacent to each other. It is set wider than the interval A3 (see FIG. 1) between the upper and lower portions of the individual throttle portions 38 (A4> A2, A3). The length in the front-rear direction of the aperture 41 is set to be substantially the same as the length in the front-rear direction of the aperture 38 immediately below the aperture 41. Further, the convex throttle portion 41 is formed in a region larger than the range in which the proximity portion 20a of the stepped convex portion 20 that is closest to the inner surface side of the side plates 6 and 7 on the outer surface of the peripheral wall portion of the water tank 3 is movable. .

In the left and right side plates 6 and 7, a plurality of hand-drawn diaphragm portions 37 and a plurality of concave recessed portions 38 for reinforcement are provided at the upper and lower portions, as in the first embodiment.
According to the present embodiment, in the left and right side plates 6, 7, the outer portion is disposed on the portion facing the proximity portion 20 a where the gap between the inner surface of the side plates 6, 7 and the outer peripheral surface of the water tank 3 is the smallest. Since the convex throttle part 41 projecting to the outside of the box 2 is provided, it becomes easier to secure a gap between the proximity part 20a and the throttle part 41, and the proximity part 20a and the side plates 6 and 7 hit each other. There is an advantage that can be further avoided.

  Further, the region where the convex throttle portions 41 are provided on the left and right side plates 6, 7 is located on the outer surface of the peripheral wall portion of the water tank 3, and is the proximity portion of the stepped convex portion 20 that is closest to the inner surface side of the side plates 6, 7. By making the area larger than the range in which 20a can move, even if the proximity portion 20a moves in the vertical direction or the front-rear direction as the water tank 3 shakes during washing operation or dehydration operation, the proximity portion 20a has a convex diaphragm. It is possible to avoid hitting the portion 41.

  Further, in the left and right side plates 6 and 7, by providing the throttle portion 41 in the throttle portion non-forming portion 39 of the first embodiment, the strength of the left and right side plates 6 and 7 can be further improved, and the generation of vibration and noise is further increased. It becomes possible to suppress.

(Third embodiment)
A third embodiment will be described with reference to FIG. The third embodiment differs from the first embodiment in the following points. In the right side plate 7, a plurality of concave throttling portions 38 provided at the upper part and the lower part are inclined so as to be parallel to the axis E of the water tank 3 that inclines forward with respect to the horizontal plane. Accordingly, the region of the throttle portion non-forming portion 39 is also inclined so as to be parallel to the axis E of the water tank 3. Although not shown, the left side plate 6 has the same configuration as the right side plate 7.

  According to this embodiment, it becomes possible to ensure the clearance gap between the proximity part 20a and the side plates 6 and 7 in the outer surface of the surrounding wall part of the water tank 3 still more favorably. In the left and right side plates 6, 7, in the region of the throttle portion non-forming portion 39, the convex throttle portion 41 that protrudes to the outside of the outer case 2 is connected to the axis E of the water tank 3, as in the second embodiment. You may make it provide so that it may become parallel.

(Other embodiments)
In the second embodiment described above, the portions of the left and right side plates 6, 7 that are provided with the convex diaphragm portions 41 are deeper than the other concave diaphragm portions 38 instead of the convex diaphragm portions 41. You may make it provide the 2nd recessed aperture part with shallow depth. The depth of the second concave diaphragm portion is, for example, about 2 mm shallower than that when the depth of the other concave diaphragm portion 38 existing above and below is 3 mm, for example.

  The reinforcing concave throttling portion 38, the convex throttling portion 41, and the second concave throttling portion in the side plates 6 and 7 are not limited to the form extending in the front-rear direction, and may be, for example, the form extending in the up-down direction. .

  As described above, according to the washing machine of the present embodiment, while forming a concave or convex throttle portion on the side plate of the outer box to reinforce the side plate, the gap between the outer box and the water tank is reduced. It can be ensured efficiently, and can contribute to compactness and large capacity.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a washing machine, 2 is an outer box, 3 is a water tank, 4 is a rotating tank, 6 and 7 are side plates, 13 is a water tank body, 13a is a cylinder (peripheral wall), 14 is a water tank cover, and 14a is a cylinder. Part (peripheral wall part), 15 is a connecting part, 16 is an elastic support mechanism, 20 is a step-like convex part, 20a is a proximity part, 28 is a motor (driving means), 37 is a concave constricted part for handling, and 38 is a reinforcement. A concave diaphragm portion for use, 39 is a non-diaphragm formation portion, and 41 is a convex projection portion for reinforcement.

Claims (7)

An outer box having left and right side plates;
A water tank disposed through an elastic support mechanism with the front opening facing forward in the outer box,
A rotating tank that is rotatably arranged in the water tank and rotated by a driving means,
The side plate is provided with a concave restricting portion that protrudes toward the inner side of the outer box or a convex shape that protrudes toward the outer side of the outer box,
A washing machine that is not provided with a concave squeezed portion that protrudes toward the inner side of the outer box in the vicinity of the smallest gap between the inner surface of the side plate and the outer surface of the peripheral wall of the water tank. An outer box having left and right side plates;
A water tank disposed through an elastic support mechanism with the front opening facing forward in the outer box,
A rotating tank that is rotatably arranged in the water tank and rotated by a driving means,
The side plate is provided with a concave reinforcing restricting portion protruding toward the inner side of the outer box,
In the side plate, in the vicinity where the gap between the inner surface of the side plate and the outer surface of the peripheral wall portion of the water tank becomes the smallest, a second concave throttle portion having a shallower depth than the concave throttle portion is provided. Washing machine.   The convex throttle part which protrudes to the exterior side of the said outer box is provided in the vicinity which the clearance gap between the inner surface of the said side plate and the surrounding wall part outer surface of the said water tank becomes the smallest in the said side plate. The washing machine described.   A concave throttle portion that protrudes to the inner side of the outer box is provided in a portion other than the vicinity of the side plate where the gap between the inner surface of the side plate and the outer surface of the peripheral wall portion of the water tank becomes the smallest. Item 4. A washing machine according to Item 3.   The area where the concave throttle part is not provided or the area where the second concave throttle part is provided in the side plate is the outer part of the peripheral wall part of the water tank and the proximity part closest to the inner side of the side plate. The washing machine according to claim 1 or 2, wherein the washing machine has a larger area than the movable range.   The width in the vertical direction of the area where the concave diaphragm portion is not provided or the area where the second concave diaphragm is provided in the side plate is the vertical width of the other diaphragm portion in the side plate, 6. The washing machine according to claim 5, wherein the washing machine is wider than the distance between the upper and lower sides of two adjacent throttle parts.   The washing machine according to any one of claims 1 to 6, wherein an axis of the water tank is inclined with respect to a horizontal plane, and the throttle portion is inclined along an axis of the water tank.

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