JP6127270B2 - Drum washing machine - Google Patents

Description

  The present invention relates to a drum-type washing machine that rotationally drives a rotating drum that contains laundry, and more particularly, to a method for holding a water tub that rotatably accommodates a rotating drum.

  A conventional drum type washing machine is shown in FIG. As shown in FIG. 8, the drum-type washing machine 201 includes a housing 204, a water tank (outer tank) 203 elastically held in the housing 204, a rotatable inside the water tank 203, and a horizontal Alternatively, a drum 202 having an inclined rotation shaft and a hydraulic damper 206 that attenuates vibration of the water tank 203 are provided. The water tank 203 is suspended and elastically held by a spring 205 attached to the upper surface of the housing 204 (see, for example, Patent Document 1).

JP 2009-082491 A

  The conventional water tank has a structure suspended by a spring provided on the upper surface of the housing. In order to attach the other end of the spring, one end of which is attached to the water tank, to the upper surface of the housing, the upper surface of the housing is separated from the other housing members, and the spring is hooked on the separated upper surface member. It is assembled with. Alternatively, a mounting member for mounting a spring is additionally provided on the separated upper surface member, and assembly is performed by hooking the spring to the mounting member.

  However, when the spring is hooked on the upper surface member of the housing, the upper surface member needs to have sufficient rigidity against the load of the spring. Further, when the spring is hooked on the added mounting member, the mounting member needs to have sufficient rigidity against the load of the spring. For this reason, it is necessary to increase the rigidity of the upper surface member and the mounting member and increase the number of fixing screws, which may increase the size of the washing machine and increase the weight and cost.

  This invention is made | formed in view of the said subject, and implement | achieves the drum type washing machine provided with the attachment member of the spring of an efficient shape with respect to the acting direction of the tension load of a spring holding a water tank, and a rotational moment. With the goal.

In order to solve the above-described conventional problems, a drum type washing machine of the present invention is attached to a housing having left and right side plates, a water tank that rotatably accommodates a rotating drum in the housing, and an upper portion of the side plates. A mounting member, and a spring having one end attached to the water tank and the other end attached to the mounting member to suspend the water tank, and the side plate includes a plurality of bead portions recessed from the outer surface in the water tank direction. And a bent piece bent toward the water tank side at an upper portion, and the mounting member includes a first surface portion having a notch portion to which the spring is mounted, and an upper side of the first surface portion. A second surface portion that is bent from one side and stacked on the lower side of the bent piece, and a third surface portion that is bent from one side below the first surface portion, and the third surface portion is said of the side plate Is brought into contact with the over de section, it is characterized in that it has been configured to form a cross section as a closed region between the mounting member and the side plate.

According to this configuration, since the third surface portion is brought into contact with the side plate, the cross-section forming a closed region is formed by the side plate and the mounting member, and in the acting direction of the tensile load and the rotational moment of the spring holding the water tank. On the other hand, since the section modulus increases, the outer shape of the mounting member can be reduced and the plate thickness can be reduced. Further, the number of screws for screwing the side plate and the mounting member can be reduced.

  In the drum type washing machine of the present invention, the rigidity against the tensile load and rotational moment of the spring holding the water tub is improved, and the mounting member for mounting the spring can be downsized.

The perspective view of the drum type washing machine in Embodiment 1 of this invention Side sectional view of the drum-type washing machine The exploded perspective view of the main case part of the drum type washing machine The principal part disassembled perspective view of the vicinity of the mounting member of the drum type washing machine 4 is a longitudinal sectional view through the notch of the mounting member of FIG. 4 is a longitudinal sectional view through the first through hole of the mounting member of FIG. 4 is a longitudinal sectional view through the third through hole of the mounting member of FIG. Front sectional view of a conventional drum-type washing machine

A drum-type washing machine according to a first aspect of the present invention includes a housing having left and right side plates, a water tank that rotatably accommodates a rotating drum within the housing, a mounting member that is mounted on an upper portion of the side plate, and one end of the drum-type washing machine. A spring attached to the water tank and having the other end attached to the mounting member and suspending the water tank, and the side plate forms a plurality of bead portions recessed from the outer surface toward the water tank , and the water tank is formed at an upper portion. A bending piece bent toward the side, and the mounting member is bent from a first surface portion having a notch portion to which the spring is mounted, and an upper side of the first surface portion, and the bending member is bent. A second surface portion that is superimposed on the lower side of the piece, and a third surface portion that is bent from one side of the lower side of the first surface portion, and the third surface portion is contacted with the bead portion of the side plate. Let the side touch The mounting member and that is configured to form a cross section as a closed region that characterized in.

  According to this configuration, since the third surface portion is brought into contact with the side plate, the cross-section forming a closed region is formed by the side plate and the mounting member, and in the acting direction of the tensile load and the rotational moment of the spring holding the water tank. On the other hand, since the section modulus increases, the outer shape of the mounting member can be reduced and the plate thickness can be reduced. Further, the number of screws for screwing the side plate and the mounting member can be reduced.

  According to a second aspect, in the first aspect, the mounting member is a fourth surface portion that is adjacent to the second surface portion, is bent from one side above the first surface portion, and is superimposed on the upper side of the bent piece. And the bent piece is sandwiched between the second surface portion and the fourth surface portion.

  According to this configuration, the fourth surface portion of the mounting member is attached so as to be overlapped with the upper side of the bent piece of the side plate. The member can be supported. Further, since the mounting member is mounted so that the bent piece of the side plate is sandwiched between the second surface portion and the fourth surface portion, the mounting member is temporarily fixed to the side plate and then screwed with screws. In this case, it is possible to prevent the mounting member from dropping off from the side plate due to gravity, and the screwing operation is facilitated.

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

(Embodiment 1)
FIG. 1 is a perspective view of a drum-type washing machine according to Embodiment 1 of the present invention, and shows an outline of the appearance. FIG. 2 is a side cross-sectional view of the drum type washing machine, and shows an outline of the internal configuration.
As shown in FIG. 1, the drum-type washing machine according to the first embodiment includes a substantially box-shaped housing 1 and a door body 3 that can be opened and closed with respect to the housing 1 with a rotating shaft 2 as a fulcrum. And an operation unit 4 disposed on the upper portion of the door body 3, a display unit 5 disposed adjacent to the operation unit 4, and adjacent to the display unit 5 so as to be opened and closed with respect to the housing 1. And a detergent container 6. A part of the water supply 25 is exposed on the upper surface of the housing 1.

  The user opens the door 3 when putting clothes to be washed into the drum type washing machine or taking out the washed clothes from the drum type washing machine. In addition, when the user puts powder detergent, liquid detergent, liquid finish, or the like into the detergent container 6, the user pulls out the detergent container 6 from the housing 1. The user puts the detergent powder into the detergent container 6 and then pushes the detergent container 6 into the housing 1. By operating the operation unit 4, the drum-type washing machine can be turned on, and various washing courses such as easy washing can be selected. The display unit 5 displays the selection result, time information until the selected washing course is completed, various washing process progresses, washing completion information, and the like.

  Next, each component which the housing | casing 1 has is demonstrated. As shown in FIG. 2, a loading port 7 is formed on the front side of the housing 1, and covers the loading port 7 when the door body 3 is closed. The user can open and close the door body 3 and put clothes in and out from the insertion port 7. The casing 1 contains an annular packing 8, a rotating drum 10, a water tank 11, and a motor 12 that rotationally drives the rotating drum 10. The annular packing 8 is disposed between the charging port 7 and the water tank 11 and prevents the clothes of the laundry from being caught in the gap between the charging port 7 and the water tank 11 and the washing water from leaking. The rotating drum 10 is formed in a bottomed cylindrical shape, and is rotatably disposed in a water tank 11 that is swingably supported in the housing 1. The axial center direction of the rotating drum 10 is inclined downward from the front side toward the back side (shown in the upward direction in FIG. 2). The rotating drum 10 is provided with a large number of water holes 14 on the outer periphery. The water passage hole 14 allows the washing water inside the water tank 11 to pass into and out of the rotating drum 10.

  The motor 12 is attached to the back side of the water tank 11 and rotationally drives the rotating drum 10 in the water tank 11 in the forward or reverse direction. A plurality of protrusions 13 (13 a, 13 b) are provided on the inner wall surface of the rotating drum 10. The protrusions 13 agitate clothes by giving an agitation operation (tumbling operation) in which the rotating drum 10 rotates at a low speed, hooks the laundry, lifts it upward, and then drops it at an appropriate height. Swipe and dry.

  The water tank 11 is supported by a damper 15 disposed below the water tank 11 and supported by a spring 16 disposed above the water tank 11 in a vibration-proof manner so as to be swingable with respect to the housing 1. A water intake 17 is provided in the lower part of the rear side of the water tank 11. The water intake 17 is connected to a drain pump 20 via a drain pipe 18 and a water pipe 19. The drainage pump 20 drains the washing water in the water tank 11 to the outside of the housing 1. The water intake 17 is also connected to the water outlet 23 via the circulation pump 21 and the circulation path 22. By the operation of the circulation pump 21, the washing water is sprayed onto the laundry in the rotating drum 10, and the washing water is included in the laundry. In the case of the rinsing step, the circulation pump 21 injects water that does not contain a detergent to enhance the rinsing effect of removing the detergent liquid contained in the laundry.

Above the water tank 11, a water supply device 25, a detergent container 26 including the detergent container 6, and a control unit 27 configured from a printed board and having a control function are arranged. The detergent container 26 includes a detergent container 6, a water supply member 30, a water supply member 31, and a connection pipe member 32. The water supply member 30 is connected to a water supply 25 connected to a water tap. The water supply member 31 is provided below the water supply member 30 and holds the detergent container 6 so that it can be pulled out. The connection pipe member 32 has one end connected to the water supply member 31 and the other end connected to the water tank 11. As described above, the detergent container 6 can be pulled out with respect to the housing 1, and in FIG. 2, the state of being pulled out from the housing 1 is indicated by a two-dot chain line.

  Next, the structure of the housing | casing 1 is demonstrated using FIG. FIG. 3 is an exploded perspective view of a main housing portion of the drum type washing machine. A first side plate 51, a second side plate 52, and a third side plate 53 are provided on the upper part around the base 50. The first side plate 51 forms the left side surface of the housing 1 when viewed from the front, the second side plate 52 forms the right side surface of the housing 1, and the third side plate 53 forms the back surface of the housing 1. The first side plate 51 and the second side plate 52 are fitted with a fourth side plate 54 having an insertion port 7 from the front side. Further, the base 50, the first side plate 51, the second side plate 52, the third side plate 53, and the fourth side plate 54 are formed in a substantially box shape, and the fifth side plate 55 is provided on the opened top surface.

  The base 50 has a bottom, and two base side damper fixing portions 56 (56a, 56b) to which one ends of the two dampers 15 (15a, 15b) are respectively fixed are provided on the bottom. The other end of the damper 15 is fixed to two water tank side damper fixing portions 57 (57a, 57b) provided on the outer periphery of the water tank 11, respectively. The two springs 16 (16a, 16b) include a coil portion 58, a first hook portion 60 formed so as to form a U-shape from one end of the coil portion 58, and the other end of the coil portion 58. And a second hooking portion 62 formed so as to extend so as to form a U-shape.

  Two mounting members 63 corresponding to the two springs 16 are mounted on the first side plate 51 and the second side plate 52, respectively. The first side plate 51 includes a first screw 64, a second screw 65, and a second screw. The three screws 66 and the fourth screw 67 are fixed with four screws. The second side plate 52 is fixed by four screws, a fifth screw 68, a sixth screw 69, a seventh screw 70, and an eighth screw 71. The two mounting members 63 have the same shape and are configured to be used for both. The mounting on the first side plate 51 and the second side plate 52 is fixed so that the mounting members 63 face each other.

  Next, details of the mounting member 63 will be described with reference to FIG. FIG. 4 is an exploded perspective view of a main part in the vicinity of a mounting member of the drum type washing machine. FIG. 4 shows only the first side plate 51 side, and the following description will be described along FIG. 4. However, the opposing second side plate 52 has a symmetric configuration and the same configuration as the first side plate 51 side. It is. The first side plate 51 is formed with a plurality of bead portions 80 that are recessed from the outer surface in the direction of the water tank 11 as shown by the cross section B. The first side plate 51 has a bent piece 81 that is bent toward the water tank 11 at the top, and the bent piece 81 has a fifth through hole 82, a sixth through hole 83, a seventh through hole 84, and an eighth piece. A through hole 85 is provided. The fifth through hole 82 and the sixth through hole 83 are formed larger than the nominal diameter of the screw described above. The seventh through hole 84 and the eighth through hole 85 are formed as female screws to which the aforementioned screws are screwed.

  The mounting member 63 includes a first surface portion 90, a second surface portion 91 formed by being bent at one side above the first surface portion 90, and both sides of the second surface portion 91. Similarly, fourth surface portions 92 and 93 formed by being bent at one side above the first surface portion 90, a third surface portion 94 formed by being bent at one side at the lower side of the first surface portion 90, And a fifth surface portion 95 formed by being bent at the tip of the third surface portion 94. An arc-shaped cutout portion 96 provided near the center of the first surface portion 90 is formed across the second surface portion 91.

The second surface portion 91 is provided with a first through hole 97 and a second through hole 98 so as to sandwich the notch portion 96 therebetween. The first through hole 97 and the second through hole 98 form a female screw to which the aforementioned screw is screwed. A third through hole 99 is provided near the center of the fourth surface portion 92, and a fourth through hole 100 is provided near the center of the other fourth surface portion 93. The third through hole 99 and the fourth through hole 100 are formed larger than the nominal diameter of the screw described above. A step A is formed between the front surface of the second surface portion 91 and the back surfaces of the fourth surface portions 92 and 93.

  Next, a method for fixing the mounting member 63 will be described with reference to FIGS. FIG. 5 is a longitudinal sectional view of each part of FIG. FIG. 5 shows a cross section through the notch 96 of FIG. A second surface portion 91 is superimposed on the lower side of the bent piece 81, and the first hook portion 60 of the spring 16 fixed to the water tank side spring fixing portion 101 provided on the outer periphery of the water tank 11 is cut out 96. It is attached to the hook.

  FIG. 6 shows a cross section passing through the first through hole 97 of FIG. The second surface portion 91 is overlaid on the lower side of the bent piece 81, and the first screw 64 is inserted through the first through hole 97 and screwed into the fifth through hole 82. FIG. 7 shows a cross section passing through the third through hole 99 of FIG. The second surface portion 91 of the mounting member 63 overlaps the upper side of the bent piece 81, and a third screw 66 is inserted through the third through hole 99 and screwed into the seventh through hole 84. The mounting member 63 is fixed to the first side plate 51 as described above.

  Here, the mounting member 63 has a step A, and the dimension of the step A is substantially equal to the thickness of the bent piece 81 and slightly larger. Therefore, the bent piece 81 is inserted and sandwiched between the steps A, and the mounting member 63 is held against the bent piece 81. Accordingly, it is possible to prevent the mounting member 63 from dropping off from the first side plate 51 due to gravity until the mounting member 63 is temporarily fixed to the first side plate 51 and screwed with screws. The screw 64 and the third screw 66 can be easily screwed. Further, since the fourth surface portions 92 and 93 of the mounting member 63 are attached so as to overlap the bent piece 81 of the first side plate 51, the tensile load E of the spring 16 holding the water tank 11 and the acting direction F of the rotational moment. On the other hand, the mounting member 63 can be supported by the bent piece 81.

  The fourth surface portions 92 and 93 on both sides of the second surface portion 91 may not be formed, and the mounting member 63 without the step A may be used. In this case, since the mounting member 63 is not held by the bent piece 81, the ease of the screwing operation is hindered, but the formation of the mounting member 63 is facilitated.

  Further, in the cross section B, the first side plate 51 and the mounting member 63 form a closed region having two right angles by bringing the bead portion 80 of the first side plate 51 into contact with the fifth surface portion 95 of the mounting member 63. As a result, a rectangular substantially box shape D as schematically indicated by a dotted line is formed. The substantially box shape D has an efficient section modulus with respect to the tensile load direction E and the rotational moment acting direction F of the spring 16 that holds the water tank 11, and can enhance rigidity. Note that the tensile load direction E of the spring 16 may change depending on the configuration, and the substantially box shape D has a rigidity enhanced according to the configuration if a closed region is formed as a cross-sectional shape without a right-angled portion. Can be achieved.

  Further, the fifth surface portion 95 formed at the distal end of the third surface portion 94 is not always necessary, and the distal end of the third surface portion 94 may abut on the first side plate 51. When the fifth surface portion 95 is present, the load on the first side plate 51 can be dispersed. Furthermore, if the abutting portion is the bead portion 80 as in the first embodiment, the rigidity can be further increased and the abutting of the mounting member 63 can be received.

  Further, the first side plate 51 and the mounting member 63 having a cross section passing through the second through hole 98 shown in FIG. 4 have the same configuration as the first side plate 51 and the mounting member 63 having a cross section passing through the first through hole 97 shown in FIG. And screwed with the second screw 65. The first side plate 51 and the mounting member 63 in the cross section passing through the fourth through hole 100 shown in FIG. 4 have the same configuration as the first side plate 51 and the mounting member 63 in the cross section passing through the third through hole 99 shown in FIG. The fourth screw 67 is screwed.

  According to the configuration as described above, the left and right side plates and the two mounting members are brought into contact with each other, and the side plate and the mounting member form a cross-section that forms a closed region. The member is integrated, and the rigidity against the load of the spring can be enhanced. Thereby, size reduction of the external shape and thickness reduction of a mounting member can be implemented. Further, the number of screws for screwing the side plate and the mounting member can be reduced.

  The drum type washing machine according to the present invention includes an attachment member having an efficient section modulus with respect to the load of the spring that elastically holds the water tub, and is effective in downsizing the attachment member and reducing the number of screws to be screwed. It can be applied to other washing machines and dryers having a rotating drum.

DESCRIPTION OF SYMBOLS 1 Case 10 Rotating drum 11 Water tank 15 Damper 16 Spring 51 1st side plate 52 2nd side plate 63 Mounting member 80 Bead part 81 Bending piece 90 1st surface part 91 2nd surface part 92, 93 4th surface part 94 3rd Face part 96 Notch part

Claims (2)

A housing having left and right side plates, a water tank that rotatably accommodates a rotating drum within the housing, a mounting member that is mounted on the top of the side plate, one end attached to the water tank, and the other end to the mounting member A spring that is attached and suspends the water tank, and the side plate has a plurality of bead portions that are recessed from the outer surface toward the water tank direction, and a bent piece that is bent toward the water tank side at the top. The mounting member includes a first surface portion having a cutout portion to which the spring is mounted, and a second surface portion that is bent from one side above the first surface portion and overlaps the lower side of the bent piece. And a third surface portion bent from one side below the first surface portion, the third surface portion being brought into contact with the bead portion of the side plate, and the side plate and the mounting member In the closed region Drum type washing machine, characterized in that it is configured to form a cross. The mounting member has a fourth surface portion that is adjacent to the second surface portion and is bent from one side above the first surface portion and is superimposed on the upper side of the bent piece, and the second surface portion and the first surface portion The drum type washing machine according to claim 1, wherein the bent piece is sandwiched between four surface portions.

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