Drum washing machine

Abstract

To provide a drum type washing machine which can suppress a resonance phenomenon of a housing by vibration caused by the rotation of a drum, by enhancing surface rigidity of a panel by making one large flat surface into multiple-faces in a machine body side surface part, without deteriorating appearance to a user.SOLUTION: A housing 1 of a drum type washing machine includes: a body part 1c which includes a front surface plate 1a and a back surface plate 1b facing the front surface plate; and a side surface plate 11 provided between the front surface plate and the back surface plate, and adjacent to the body part. The side surface plate includes: adjacent surfaces 13a, 13b, 13c, 13d, 14 formed as surfaces adjacent to the body part; and a protrusion flat surface 11e formed as a flat surface protruding further than the body part. The adjacent surfaces are arranged being inclined with respect to the protrusion flat surface.SELECTED DRAWING: Figure 2A

Description

[Technical field]

[0001] The present disclosure relates to a drum type washing machine. [Background technology]

[0002] The side of a drum-type washing machine's body is made up of a large flat surface made of a steel panel. This flat surface is used as the reference surface, and various beads with uneven shapes are added to this reference surface to increase the panel's surface rigidity and prevent the casing from resonating due to vibrations caused by the rotation of the drum. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4865841 (JP Patent Publication No. 2010-63893) [Patent Document 2] Patent No. 4961461 (JP Patent Publication No. 2010-88875) [Patent Document 3] Patent No. 5453761 (JP Patent Publication No. 2010-99703) Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to solve the problems of the conventional technologies and provide a drum-type washing machine that can suppress the resonance phenomenon of the casing caused by vibrations resulting from the rotation of the drum without compromising the appearance to the user. [Means for solving the problem]

[0005] A drum type washing machine according to the present disclosure includes a housing, an outer tub supported in the housing, a rotating drum rotatably contained in the outer tub, and a motor that rotates the rotating drum. The housing includes: A body portion including a front plate and a rear plate facing the front plate, and a side plate provided between the front plate and the rear plate and adjacent to the body portion, The side panel is adjacent to the body portion It is formed with a flat surface The adjacent surfaces and connecting with the adjacent surface; The flat surface is formed so as to protrude from the body portion. Is A protruding plane; having The adjacent surface is inclined with respect to the protruding plane. The plane is are arranged Has an inclined surface , The step between the outer peripheral end adjacent to the body portion and the connecting portion of the inclined surface and the protruding flat surface is 1 mm or more and less than 4 mm. . Effect of the Invention

[0006] The present disclosure can suppress the resonance phenomenon of the housing caused by the rotation of the rotating drum while minimizing the impact on the appearance. [Brief description of the drawings]

[0007] [Figure 1A] FIG. 1 is a perspective view of a washing machine according to a first embodiment; [Figure 1B] FIG. 1 is a partially transparent perspective view of a washing machine according to a first embodiment; [Figure 2A] View of the steel body panel of the outer shell of a washing machine [Figure 2B] Front view of the outer steel body panel [Figure 3A] Cross-sectional view of the steel body panel of the outer shell side plate taken along line AA in FIG. 2A. [Figure 3B] Cross-sectional view of the steel body panel of the outer shell side plate taken along line BB in FIG. 2A. [Figure 3C] Cross-sectional view of the steel body panel of the outer shell side plate taken along line CC in FIG. 2A. [Figure 3D] Cross-sectional view of the steel body panel of the outer shell side plate taken along line DD in FIG. 2A. [Figure 4A] A perspective view of a steel body panel of an outer shell side plate to which a bead portion is added [Figure 4B] Front view of the steel body panel of the outer shell side plate with the bead portion added [Figure 5A] A cross-sectional view of a steel body panel of an outer shell side plate to which a bead portion is added along line EE in FIG. 4A. [Figure 5B] A cross-sectional view of a steel body panel of an outer shell side plate to which a bead portion is added along the FF line in FIG. 4A. [Figure 6] FIG. 1 is an arrow view showing the definition of the end area of ​​the bead portion in the longitudinal direction. [Figure 7] Cross section along line GG in Figure 6 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0009] In Figures 1A and 1B, the structure of a drum type washing machine at least includes a housing 1, a rotating drum 31 having a rotating shaft, an outer tub 2 that encloses the rotating drum 31 and is supported inside the housing 1, and a motor 32 that is fixed to the outer tub 2 and rotates the rotating drum 31 around the rotating shaft relative to the outer tub 2.

[0010] The housing 1 also includes a steel body panel 11 which is an outer side plate, i.e., a side plate, covering both sides of the outer tub 2, and the steel body panel 11 of the outer side plate has a configuration in which the edges of the upper, lower, front and rear outer peripheral ends are flush with each other. The edges of the outer peripheral ends refer to the curved ridgeline between the upper end 11b and the first inclined surface 13b of the outer peripheral end and the curved ridgeline between the lower end 11d and the first inclined surface 13d, as well as the curved ridgeline between the left end 11a and the second inclined surface 13a and the curved ridgeline between the right end 11c and the second inclined surface 13c.

[0011] The washing machine further includes a plurality of vibration dampers 33 capable of holding the lower part of the outer tub 2 so that it can swing freely.

[0012] In Figures 2A and 2B, the housing 1 has a body portion 1c including a front panel 1a and a rear panel 1b facing the front panel 1a, and a side panel 11 disposed between the front panel 1a and the rear panel 1b and adjacent to the body portion 1c.

[0013] The side panel 11 has adjacent surfaces 13a, 13b, 13c, 13d, and 14 formed as surfaces adjacent to the body portion 1c, and a protruding plane 11e formed as a plane that protrudes in the thickness direction of the side panel 11 more than the body portion 1c.

[0014] The adjacent surfaces 13a, 13b, 13c, 13d, and 14 are arranged at an angle to the rectangular frame-shaped ends of the outer periphery of the side panel 11, i.e., the left end 11a of the rectangle, the upper end 11b of the rectangle, the right end 11c of the rectangle, the lower end 11d of the rectangle, and the protruding plane 11e from each of their connection boundaries. The adjacent surfaces 13a, 13b, 13c, 13d, and 14 include trapezoidal first inclined surfaces 13b, 13d that incline from the upper end 11b and lower end 11d of the side panel 11 toward the protruding plane 11e, respectively, trapezoidal second inclined surfaces 13a, 13c that incline from the left end 11a and right end 11c of the side panel 11 toward the protruding plane 11e, and a third inclined surface 14 that connects the first inclined surface 13b to the second inclined surfaces 13a, 13c, and the first inclined surface 13d to the second inclined surfaces 13a, 13c, respectively, and is arranged at an incline with respect to the protruding plane 11e and the first inclined surfaces 13b, 13d and the second inclined surfaces 13a, 13c.

[0015] The front shape of the protruding flat surface 11e is rectangular, but the connection between each corner and the third inclined surface 14 is a curved joint edge.

[0016] 2A and 2B, the outer peripheral end portion 11a, 11b, 11c, and 11d of the steel plate body panel 11 has four planar inclined surfaces 13a, 13b, 13c, and 13d, each of which has an independent inclination 12a, 12b, 12c, and 12d from the same plane toward the central plane portion, i.e., the protruding plane 11e.

[0017] The protruding flat surface 11e is disposed as a flat surface in the center portion not directly joined to the outer peripheral end portions 11a, 11b, 11c, 11d of the outer side plate, and each of the inclined surfaces 13a, 13b, 13c, 13d having different inclinations 12a, 12b, 12c, 12d is joined to two adjacent flat surfaces having different inclinations via a curved surface 14, which is a third inclined surface. As an example of the angle of each of the inclinations 12a, 12b, 12c, 12d, if it is set to be 1° or more and less than 30°, multi-faceting can be achieved.

[0018] 3A to 3D, the steel body panel 11 of the outer shell side plate shows the same surfaces of the upper, lower, front and rear outer peripheral end portions 11a, 11b, 11c, and 11d and the independent inclinations 12a, 12b, 12c, and 12d.

[0019] 3A to 3D, the step 15 between the outer peripheral end 11a, 11b, 11c, 11d of the outer side plate and the protruding flat surface 11e that is not joined to the outer peripheral end 11a, 11b, 11c, 11d of the outer side plate is 1 mm or more and less than 4 mm. This has the advantage of not impairing the appearance. If the dimension of the step 15 between the outer peripheral end and the protruding flat surface is defined as the bulge amount, it has been found from the results of CAE analysis in which only the bulge amount is changed while all other dimensions such as the face width other than the step amount are unchanged, that the resonance point becomes higher as the bulge amount increases within the range of 1 mm or more and less than 4 mm.

[0020] In addition, the distances 21a, 21b, 21c, and 21d from the edge of the protruding flat surface 11e to the outer peripheral ends 11a, 11b, 11c, and 11d of the outer side plates are each 20 to 100 mm, which has the advantage of not impairing the appearance and being able to increase the resonance frequency and suppress the resonance phenomenon of the housing.

[0021] 4A and 4B and 5A and 5B, the surface of the steel plate body panel 11 has a plurality of concave bead portions 16 extending from the front side to the back side and recessed in the thickness direction of the steel plate body panel 11. The cross-sectional shape of each bead portion 16 in the width direction is, for example, an inverted trapezoid, and the planar shape is a rectangle long in the extension direction with semicircular ends disposed at both ends. At least two joint surfaces between the inclined surfaces 13a, 13b, 13c, 13d having the independent inclinations 12a, 12b, 12c, 12d, respectively, and the protruding flat surface 11e are disposed inside the long side directions (i.e., extension directions) 16c and 16d of the two bead portions 16a, 16b at both upper and lower ends, respectively. Specifically, inclined surface 13b and three joint surfaces between third inclined surfaces 14 on both the left and right sides of inclined surface 13b and protruding flat surface 11e are respectively disposed inside long side direction (i.e., extending direction) 16c of upper bead portion 16a. Inclined surface 13d and three joint surfaces between third inclined surfaces 14 on both the left and right sides of inclined surface 13d and protruding flat surface 11e are respectively disposed inside long side direction (i.e., extending direction) 16d of lower bead portion 16b.

[0022] Also, the bead depth 22 at the deepest part of each concave bead portion 16 is characterized by being 2 mm or more from the protruding flat surface 11e. This has the advantage that the resonance frequency can be increased and the resonance phenomenon of the housing can be suppressed.

[0023] In Figures 6 and 7, of the independently inclined inclined surfaces 13a, 13b, 13c, and 13d, the joining surfaces 16e and 16f between the remaining two inclined surfaces 13a and 13c and the protruding flat surface 11e are characterized in that they are joined within the longitudinal end areas 17a and 17b, respectively, of the bead portion 16.

[0024] 6 shows the definition of the end area 17a and the end area 17b in the longitudinal direction of the bead portion 16. That is, the end area 17a and the end area 17b of the bead portion 16 are each a semicircular region whose diameter is the width dimension of the bead portion 16. The joint surfaces 16e and 16f between the inclined surfaces 13a and 13c and the protruding flat surface 11e, respectively, are configured to be located within this region of the bead portion 16.

[0025] The side panel 11 is also provided with a grip portion 7 into which a hand is inserted to grip the washing machine when transporting the washing machine. A protruding portion 7a of the grip portion 7 in the thickness direction is disposed so as to be substantially flush with the protruding flat surface 11e. In other words, the protruding flat surface 11e is protruding up to the height of the grip portion 7 for the transport handle. The protrusion for the transport handle is recessed into the inside of the housing as the grip portion 7 and is substantially flush with the height of the protruding flat surface 11e, thereby making the protrusion for the transport handle less visible.

[0026] According to the embodiment, the side panel 11 is formed as a multi-faceted structure with the adjacent surfaces 13a, 13b, 13c, 13d, and 14 and the protruding flat surface 11e. Here, by arranging not only the protruding flat surface 11e but also the adjacent surfaces 13a, 13b, 13c, 13d, and 14 that are inclined with respect to the protruding flat surface 11e and adjacent to the body part 1c, the connection part between the protruding flat surface 11e and the body part 1c is not linear, and the curved ridgeline can be made gentle. Therefore, when viewed from a distance, it is likely to be viewed as a flat surface. As a result, a structure that does not affect the appearance even with a multi-faceted structure can be formed, so that the appearance is not deteriorated, and the impact on the appearance is suppressed, and the resonance phenomenon of the housing caused by the rotation of the rotating drum 31 can be suppressed. In addition, the rigidity of the side panel 11 can be increased by making it a multi-faceted structure, and the resonance point becomes higher as the rigidity increases.

[0027] In contrast, in the past, in order to prevent the resonance phenomenon of the housing caused by the vibration caused by the rotation of the drum, if various beads with uneven shapes cannot be used, the panel plate thickness or the depth of the uneven bead is increased. However, in conventional technologies such as increasing the plate thickness or devising the shape of the bead, there were problems with the method of dealing with the problem, as the performance or cost was significantly affected by the increase in cost due to the increase in plate thickness, the increase in installation space due to the uneven bead, or the reduction in internal capacity. In order to solve these problems, a method of making a large single plane into a multi-faceted structure to increase the surface rigidity of the panel and suppress the resonance phenomenon caused by the vibration caused by the rotation of the drum was effective. However, the side part of the machine body of a drum-type washing machine is a part where design is important, which also looks good to the user, and considering that. It is common to set the side part of the machine body to look like a single plane, and it was difficult to make it a multi-faceted structure. The above embodiment is intended to solve such problems.

[0028] Furthermore, by providing the third inclined surface 14 at the connection portion between the first inclined surface 13b, 13d and the second inclined surface 13a, 13c, the connection portion between the first inclined surface 13b, 13d and the second inclined surface 13a, 13c is prevented from becoming linear, and the curved ridgeline of the side panel 11 is made gentle, so that it appears as if it is a single plane when viewed from a distance. As a result, it is possible to suppress the resonance phenomenon of the housing caused by the rotation of the rotating drum 31 while suppressing the impact on the appearance.

[0029] In addition, inside the bead portion 16, the protruding flat surface 11e and the adjacent portions 13a, 13b, 13c, 13d, and 14 are connected as joints, so that the rigidity of the joints between the surfaces can be increased by arranging the bead portion 16 so as to straddle the joints that tend to have low rigidity. This increases the surface rigidity of the side panel 11, thereby suppressing the resonance phenomenon of the housing caused by the drum rotation.

[0030] Moreover, by arranging the protruding portion 7a of the grip portion 7 in the thickness direction so as to be substantially flush with the protruding flat surface 11e, the grip portion 7 can be provided so as not to protrude from the housing 1. Therefore, it is possible to suppress the influence of the grip portion 7 on the appearance and to suppress the loss of installation space for the washing machine.

[0031] Conventionally, when trying to reduce vibration by configuring the basic surface of a side panel with only one flat surface or one flat surface and another curved surface, the only option was to increase the thickness of the panel for the sake of appearance.

[0032] In contrast, in this embodiment, as described above, a structure can be created that does not affect the appearance even with a multi-planar structure, so that the appearance is not deteriorated and the present embodiment has an advantage in terms of cost performance. That is, according to this embodiment, it is possible to provide a steel body panel 11 for the outer side panel of a drum-type washing machine that can be manufactured at low cost while ensuring high rigidity of the panel as a thin plate and suppressing vibrations, and preventing the deterioration of appearance due to the multi-planar structure, which has been a problem in the past.

[0033] Assuming that the panel member is manufactured by press-molding a metal plate such as a thin steel plate, in order to find a panel structure that can ensure high rigidity even if the plate thickness is reduced, a washing machine will be illustrated as an example using the panel member (side panel) of a washing machine.

[0034] The drum-type washing machine according to the present disclosure includes a side panel 11 that forms a multi-faceted structure with adjacent surfaces 13a, 13b, 13c, 13d, and 14 of a body portion 1c of a steel plate panel and a protruding flat surface 11e, and includes an uneven bead portion 16 and a grip portion 7 having a protrusion for a transport handle inside the side panel 11 of the steel plate panel. The protruding flat surface 11e of the side panel 11 is protruded to the height of the protruding portion 7a of the grip portion 7 for the transport handle, and a plurality of inclined surfaces 13a, 13b, 13c, 13d, and 14 are set by inclining the flat surfaces from the upper, lower, front, and rear ends of the side panel 11 toward the protruding flat surface. The joints between the inclined surfaces 13a, 13b, 13c, 13d, and 14 and the protruding flat surface 11e are joined within the uneven bead portion 16 to hide the joint surface. This reduces the area of ​​the flat surface to increase the panel rigidity, and the inclined surfaces are hidden by the bead portion 16, ensuring the required performance without deteriorating the appearance.

[0035] In addition, by appropriately combining any of the various embodiments or modifications described above, it is possible to achieve the effects of each of them. In addition, combinations of embodiments, combinations of examples, or combinations of embodiments and examples are possible, and combinations of features of different embodiments or examples are also possible. [Industrial Applicability]

[0036] The drum-type washing machine according to the above aspect of the present disclosure can efficiently suppress deterioration in appearance and resonance of the housing due to vibration, with respect to the shape of the steel plate panel constituting the side portion of the machine body. [Explanation of symbols]

[0037] 1 Case 1a Front plate 1b Back plate 1c Body 2 Outer tank 7 Gripping part 7a: Protruding portion of gripping portion 7 in the thickness direction 11. Outer steel body panel 11a Outer peripheral edge (left edge) of outer shell side steel body panel 11b Outer peripheral edge (upper edge) of outer shell side steel body panel 11c Outer edge (right edge) of outer shell side steel body panel 11d Outer peripheral edge (lower edge) of outer shell side steel body panel 11e Projecting plane of the center of the outer side steel body panel 12a: Inclination set from the outer peripheral end toward the protruding plane 11e 12b An inclination set from the outer peripheral end toward the protruding plane 11e 12c An inclination set from the outer peripheral end toward the protruding plane 11e 12d: Inclination set from the outer peripheral end toward the protruding plane 11e 13a Inclined surface having the inclination 12a 13b Inclined surface having a slope of 12b 13c An inclined surface with a slope of 12c 13d An inclined surface with a slope of 12d 14: Curved surface where the inclined surfaces 13a, 13b, 13c, and 13d join 15 Step between outer periphery edge and protruding surface 16 Concave bead part 16a Concave bead portion at upper end 16b Concave bead portion at the lower end 16c: The longitudinal direction of the concave bead portion 16a at the upper end 16d: The longitudinal direction of the concave bead portion 16b at the lower end 21a: Distance from the edge of the protruding plane 11e to the left end 11a of the outer periphery of the outer shell side plate 21b: Distance from the edge of the protruding flat surface 11e to the upper end 11b of the outer periphery of the outer side plate 21c: Distance from the edge of the protruding plane 11e to the right end 11c of the outer periphery of the outer shell side plate 21d: Distance from the edge of the protruding flat surface 11e to the lower end 11d of the outer periphery of the outer side plate 22 Bead Depth 31 Rotating Drum 32 Motor 33 Anti-vibration damper

Claims

1. A housing, an outer tank supported inside the housing, and a rotatable tank contained inside the outer tank. The present invention includes a rotating drum and a motor that rotates the rotating drum. The housing includes: a body portion including a front plate and a rear plate facing the front plate; and a side panel adjacent to the body portion, The side panel is an adjacent surface formed with a flat surface adjacent to the body portion; a protruding plane formed as a plane connected to the adjacent surface and protruding beyond the body portion; having the abutment surface has an inclined surface disposed as the plane inclined with respect to the protruding plane; A drum-type washing machine, wherein a step between an outer peripheral end portion adjacent to the body portion and a connection portion of the inclined surface and the protruding flat surface is 1 mm or more and less than 4 mm.

2. The adjacent surface is a first inclined surface that is an inclined surface of the plane and inclined from an upper end or a lower end of the side panel toward the protruding plane; a second inclined surface that is an inclined surface of the plane and inclined from the left end or the right end of the side panel toward the protruding plane; a projection plane that connects the first inclined surface and the second inclined surface, and a projection plane that connects the first inclined surface and the second inclined surface and a third inclined surface disposed at an angle relative to the second inclined surface; Including, 2. The drum type washing machine according to claim 1, wherein a distance from the outer peripheral end to the connecting portion is 20 mm to 100 mm.

3. The side panel is extended from the front side to the rear side and has a concave shape in the thickness direction of the side panel. Including the bead portion, The bead portion is provided so as to straddle the connection portion and is formed on the adjacent surface and the protruding flat surface.

3. The drum type washing machine according to claim 1 or 2.

4. The side panel is provided with a grip portion that is gripped when transporting the washing machine, The gripping portion is disposed so as to be substantially flush with the protruding flat surface. The drum type washing machine according to any one of claims 1 to 3.

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