KR20180042398A - washer - Google Patents

Abstract

In the washing machine 1 provided in the present invention, the structure including the washing tub 3 can improve the rigidity of the portion supporting the washing tub 3 so as to realize space saving and rotation. Here, the washing tub 3 is rotatable so as to intersect with the up and down direction Z. The washing machine (1) comprises a washing tub (3) rotatable so as to cross the up and down direction (Z); A support member (13) disposed outside the washing tub (3) and supporting the washing tub (3) so as to be rotatable; A bent portion 13F provided on the supporting member 13 and bent toward the washing tub 3; An elastic supporting member 5 mounted on the bent portion 13F and elastically supporting the supporting member 13; .

Description

washer

The present invention relates to a washing machine.

In the washing and drying machine disclosed in Patent Document 1 (to be described later), the outer tubular portion to which the rotating tub is inserted, into which the laundry is put, is supported by the rotating supporting member by the tubular rotary supporting shaft. A pair of rotation support members are provided so that the outer and the bottom portions are fitted, and each of the rotation support members is supported by the housing of the washer dryer by the suspension bar. A rotation control wire attachment portion is provided on the outer shell and a control wire connected to the rotation control wire attachment portion is wound on a reel of an inclined rotation motor provided on the outer case. As the tilted rotary motor rotates, the control wire rises or falls, so that the outer tilted portion surrounds the tilted rotary support shaft and advances the tilted rotation. Therefore, when the laundry is put into the rotating tub, the tub is inclined in the lateral direction, and when washing, rinsing, and dewatering, the outer tub is raised and oriented in the vertical direction.

In the washing machine described in Patent Document 1, a portion of each of the rotation support members on which the suspending bar is mounted is located on the outer side portion opposite to the outer side of the rotation support member. In this case, since the hanging rods are arranged so as to extend to the outside of the rotation support member, it is possible to increase the size of the washing and drying machine, so that it is difficult to realize a reduction in the installation space of the washing and drying machine. In addition, it is necessary to improve the rigidity of the rotation support member for supporting the outer and / or outer portion so as to be rotatable.

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Application Laid-Open No. 4-166196

The present invention has been completed on the basis of the background described above and provides a washing machine which improves the rigidity of a portion supporting the washing tub so as to realize a saving in installation space and to enable rotation in a structure including a washing tub .

The washing machine of the present invention includes a washing tub which accommodates laundry and is rotatable so as to cross the vertical direction; A support member disposed outside the washing tub and supporting the washing tub to be rotatable; A bent part installed on the supporting member and bent toward the washing tub; And an elastic support member mounted on the bent portion and elastically supporting the support member; .

In addition, the present invention is characterized by including a driving mechanism disposed between the supporting member and the washing tub and rotating the washing tub.

In addition, the present invention is characterized in that the drive mechanism includes a base portion formed to bend a local portion and mounted on the support member.

In addition, the present invention is characterized in that a pair of the supporting members are installed so that the washing tub is sandwiched, and the washing machine includes a beam member which is installed between a pair of the supporting members.

In addition, the present invention is characterized in that a pair of the supporting members are installed so that the washing tub is sandwiched, and the washing machine includes a pair of supporting members and a pair of bottom members, And a support frame which is an enemy support frame.

According to the present invention, in a washing machine comprising a washing tub which is rotatable so as to intersect with a vertical direction, a supporting member disposed outside the washing tub supports the washing tub to be rotatable.

The supporting member is provided with a bent portion bent toward the washing tub. As a result, the rigidity of the support member can be improved. The bent portion is provided with an elastic supporting member for elastically supporting the supporting member. In this case, since the elastic supporting member is disposed on the side of the washing tub, that is, the inside of the supporting member, rather than being arranged in such a manner as to extend to the side opposite to the washing tub of the supporting member, i.e., outwardly, the washing machine can be downsized. Thus, it is possible to reduce the installation space of the washing machine.

In addition, according to the present invention, since the driving mechanism for rotating the washing tub is not disposed so as to extend outwardly of the supporting member, but disposed between the supporting member and the washing tub, the washing machine can be downsized. Thus, it is possible to reduce the installation space of the washing machine.

In addition, according to the present invention, in the driving mechanism, the base portion mounted on the supporting member is formed so as to bend the local portion, so that the rigidity can be improved. Thereby, since the support member is reinforced by the base portion, further improvement of the rigidity of the support member can be realized.

In addition, according to the present invention, since a beam member is installed between a pair of support members provided so as to sandwich the washing tub, further improvement in the rigidity of the respective support members can be realized.

In addition, according to the present invention, the pair of support members provided so as to sandwich the washing tub and the bottom member interposed between the lower ends of the pair of support members are integrated to constitute the integral support frame, Additional improvements can be realized.

1 is an exemplary perspective view of a washing machine according to an embodiment of the present invention.
2 is a perspective view of a supporting member of a supporting frame included in the washing machine.
3 is a perspective view of the washing machine.
4 is a perspective view of a driving mechanism including a washing machine.
5 is a left side view of the supporting member and the driving mechanism.
6 is a sectional view taken along the line AA in Fig.
7 is a perspective view of a washing machine according to a modification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is an exemplary perspective view of a washing machine 1 according to an embodiment of the present invention. The vertical direction in Fig. 1 is the vertical direction Z of the washing machine 1 and the left and right direction in Fig. 1 is the front and rear direction Y of the washing machine 1, Direction is referred to as a left-right direction (X). The vertical direction Z is also a vertical direction. In the vertical direction Z, the upper side is referred to as an upper side Z1 and the lower side is referred to as a lower side Z2. In the forward and backward direction Y, the right side in Fig. 1 is referred to as a front side (Y1), and the left side in Fig. 1 is referred to as a rear side (Y2). In the lateral direction X, the front side of the sheet of Fig. 1 is referred to as the left side X1, and the back side of the sheet of Fig. 1 is referred to as the right side X2.

In the washing machine 1, a washing machine having a drying function is also included. However, the washing machine 1 will be described below as an example of a washing machine that omits the drying function and performs only the washing operation. The washing operation includes a washing process, a rinsing process and a dewatering process. The washing machine 1 includes a housing 2, a washing tub 3 disposed in the housing 2, a supporting frame 4, an elastic supporting member 5, a rotating portion 6, an unlocking mechanism 7, 8).

The housing 2 is made of, for example, metal and is formed into a box shape. The housing 2 is provided with a connecting surface 2C for connecting the front surface 2A and the top surface 2B. The connecting surface 2C is, for example, an inclined surface that descends toward the front Y1. An entrance (not shown) for inserting / removing laundry into / from the washing machine 1 is formed over the front surface 2A and the connecting surface 2C.

The washing tub (3) includes an outer tub (10) and an inner tub (11). The outer tub 10 is made of, for example, resin and is formed into a cylindrical shape having a bottom. The virtual straight line passing through the centrifuge of the outer tub 10 is the central axis J of the outer tub 10. In the washing process and the rinsing process, water is stored in the outer tank (10). At the upper end of the outer tub 10 opposite to the bottom wall (not shown), there is formed a circular opening 10A for allowing the laundry to be introduced into the washing machine 1 to pass therethrough. On the right and left side surfaces of the outer tub 10, a metal rotating shaft 12 protruding outward in the lateral direction X is provided one by one. In Fig. 1, the rotation axis 12 of the left side X1 is shown. The pair of left and right rotating shafts 12 are arranged at the same position when viewed in the left-right direction X. [

The inner tank 11 is made of, for example, a metal, and is formed into a cylindrical shape having a bottom and a bottom than the outer tank 10. The laundry is housed in the inner tank (11). A circular opening 11A is formed at the upper end of the inner tub 11 opposite to the bottom wall (not shown) to allow the laundry contained in the inner tub 11 to pass therethrough. The inner tank (11) is accommodated in the outer tank (10) in a coaxial shape. Therefore, the central axis of the inner tank 11 is the central axis J described above. The opening 11A of the inner tank 11 is located inside the opening 10A of the outer tank 10 while the inner tank 11 is accommodated in the outer tank 10. [ The opening 10A and the opening 10A are opposed to the entrance (not shown) of the housing 2, so that the laundry can be taken in and out of the inner tub 11. A plurality of through holes 11C are formed in the circumferential wall 11B and the bottom wall of the inner tank 11. The water in the outer tank 10 is connected to the outer tank 10 and the inner tank 11 through the through holes 11C. . Therefore, the water level in the outer tank 10 and the water level in the inner tank 11 coincide with each other. In the washing operation, the inner tub 11 receives the driving force of a motor (not shown) provided in the housing 2 and rotates around the central axis J.

The support frame 4 is made of metal and includes a pair of left and right support members 13 and a beam member sandwiched between the lower ends of the pair of support members 13. A washing tub (3) is disposed between the pair of supporting members (13). The pair of support members 13 are arranged outside the washing tub 3 so as to sandwich the washing tub 3 in the left and right directions X. [ Each supporting member 13 has a rectangular shape when viewed in the lateral direction X and is formed in a thin plate shape in the lateral direction X. [ In other words, each of the support members 13 has a constant plate thickness in the direction opposite to the washing tub 3, that is, in the left-right direction X.

The rotating shaft 12 protruding to the left X1 of the outer tub 10 of the washing tub 3 penetrates through the support member 13 on the left X1 and flows through the bearing X1 on the left side X1 And is rotatably supported by the support member 13. [ The rotation shaft 12 (not shown) protruding to the right side X2 of the outer tub 10 penetrates through the support member 13 on the right side X2 and supports the right side X2 through a bearing And is rotatably supported by a member (13). The washing tub 3 is supported by the right and left support members 13 of the support frame 13 and rotates around the rotation axis 12 so as to intersect with the up and down direction Z. [ Specifically, the center axis J of the outer tub 10 and the inner tub 11 is inclined in the front-back direction Y with respect to the up-and-down direction Z as the washing tub 3 rotates. The rotational direction of the washing tub 3 is referred to as a rotational direction K. [

The intersection angle of the washing tub 3 with respect to the reference axis L is an acute angle formed by the imaginary reference axis L extending along the vertical direction Z and the central axis J. As the rotational angle? Is smaller, the washing tub 3 approaches the vertical form more and the washing tub 3 is opened from the opening 10A of the outer tub 10 and the opening 10A of the inner tub 11, (Y1) so that the front surface 11A is further directed to the front (Y1). The rotation angle [theta] may be changed into five levels, for example, 5 degrees, 15 degrees, 30 degrees, 45 degrees, and 60 degrees. In this case, as one example of application to the washing machine 1, when the laundry is put into the washing tub 3 at the start of the washing operation, the rotation angle? Is set to 45 degrees so as to facilitate the input of laundry, When detecting the load of the laundry or when feeding water to the laundry 3, the rotation angle? Is set to 5 degrees. Next, in order to facilitate washing and rinsing in a highly efficient manner by promoting the replacement of the laundry in the inner tub 11 during the washing process and the rinsing process, the rotation angle? Is set to change between 5 and 60 degrees.

An opening 13A penetrating through the support member 13 is formed in a region closer to the lower side Z2 than the rotary shaft 12 in the support member 13 on the left side X1 along the lateral direction X. [ The opening 13A is formed in a substantially rectangular shape elongated in the forward and backward directions Y. [ 2, the rotary shaft 12 is inserted above the opening Z1 of the opening 13A of the support member 13 on the left side X1, and the rotary member 12 A circular opening 13B for determining the position of the unlocking mechanism 7 and a rectangular opening 13C at a position closer to the front Y1 than the opening 13B and for inserting the unlocking mechanism 7 are formed .

The upper edge of each support member 13 is sloped to form an inclined portion 13D and an entire region of the upper end portion closer to the rear side Y2 than the inclined portion 13D is formed in the left and right direction X, A flange portion 13E bent at a substantially right angle to the side opposite to the side of the washing tub 3 is formed. Here, the side of the washing tub 3 in the lateral direction X means the inside of the supporting member 13, the right side X2 in the case of the supporting member 13 on the left side X1, (X1) in the case of the support member 13 of the first embodiment. Conversely, the side opposite to the washing tub 3 side in the lateral direction X means the outside of the supporting member 13, the left side X1 in the case of the supporting member 13 on the left side X1, And the right side X2 in the case of the support member 13 on the right side X2.

Each supporting member 13 is integrally provided with a bent portion 13F bent toward the washing tub 3 side. The bent portion 13F includes a front bent portion 13G, a rear bent portion 13H, and a downward bent portion 13I. The front bent portion 13G is formed so that the substantially entire region closer to the lower side Z2 than the inclined portion 13D at the front end portion of the support member 13 is bent at a substantially right angle to the washing tub 3 side, ). ≪ / RTI > The rear bent portion 13H is formed in a band shape extending along the vertical direction Z by virtually bending the substantially entire region of the rear end portion of the support member 13 toward the washing tub 3 side. The downward bent portion 13I has a band shape extending along the forward and backward directions Y by virtually bending the substantially entire region of the lower end of the supporting member 13 toward the washing tub 3 side.

The rigidity of the support member 13, in particular, the bending rigidity in the lateral direction X, can be improved through the bent portion 13F. It should be noted that the flange portion 13E provided at the upper end of the support member 13 also helps to improve the rigidity of the support member 13. [ Since the rigidity of the support member 13 is improved and the resonance frequency of the entire support frame 4 including the support member 13 is increased in this way, It is possible to suppress the vibration of the motor 4.

In the front bent portion 13G and the rear bent portion 13H, the upper portion 13J cuts the two bent portions along the vertical direction Z from the side of the washing tub 3 to form a cutting mouth 13K , And becomes narrower in the left-right direction X than the lower portion 13L. The incision opening 13K is in a position where the washing tub 3 vibrating during the washing operation can reach. Therefore, it is possible to prevent the washing tub 3 from coming into contact with the front bending portion 13G and the rear bending portion 13H during the washing operation. In the upper region of the lower portion 13L, a plurality of large or small through holes 13M penetrating the downward portion 13L along the forward and backward directions Y are formed. The rim of the lower portion of the lower portion 13L on the side of the washing tub 3 is formed so as to be inclined toward the side opposite to the side of the washing tub 3 toward the lower side Z2. As a result, the lower region of the lower portion 13L becomes narrower in the lateral direction X as it goes downward (Z2).

Referring to the perspective view of the washing machine 1 observed in the downward direction Z2, that is, referring to Fig. 3, the receiving portion 15 is provided at a region above the lower portion 13L of the front bent portion 13G and the rear bent portion 13H One by one. The receiving portion 15 is made of resin, for example, and is formed in a box shape slightly longer in the vertical direction Z. [ The receiving portion 15 is formed with a concave portion 15A recessed upward from the lower surface Z1. The receiving portion 15 is disposed to face the lower portion 13L of the front bend portion 13G at the front Y1 and to face the lower portion 13L of the back bent portion 13H at the rear portion Y2 . The collar (not shown) provided in the receiving portion 15 is inserted into the through hole 13M (see FIG. 2) of the upper region of the lower portion 13L to position the receiving portion 15 in the lower portion 13L . The reception portion 15 is fixed to the lower portion 13L by assembling the positioning portion 15 with a bolt (not shown) passing through the other through-hole 13M in the upper region of the lower portion 13L.

The elastic supporting member 5 is formed into a long rod shape in the up-and-down direction provided with a friction damper 16 at the lower end of the elastic supporting member 5. There are four elastic supporting members 5, and one elastic supporting member 5 is disposed at each of four corners in the housing 2 when viewed from the upper side Z1. The resilient supporting member 5 is in a suspended state in an upper portion of the housing 2, specifically, in an outer case (not shown) made of metal constituting a part of the housing 2. [

The lower ends of the elastic supporting members 5 on the front side Y1 of the two elastic supporting members 5 arranged on the front side and the rear side on the left side X1 are connected to the front bending portion 13G of the supporting member 13 on the left side X1 And the lower end of the elastic support member 5 on the rear side Y2 is connected to the reception portion 15 provided on the rear bent portion 13H of the support member 13 on the left side X1. The lower ends of the elastic supporting members 5 on the front side Y1 are connected to the front bent portions 13G of the supporting member 13 on the right side X2 in the two elastic supporting members 5 arranged on the right side X2 The lower end of the elastic supporting member 5 (not shown) on the rear side Y2 is connected to the reception portion 15 provided on the rear folding portion 13H of the support member 13 on the right side X2, (Not shown).

The lower ends of the elastic supporting members 5 are inserted into the concave portion 15A of the receiving portion 15 from the lower side Z2 and are connected to the receiving portion 15 and the receiving portion 15 allows the front bent portion 13G and the rear portion And is mounted on the bent portion 13H. The rod-like portion of the elastic supporting member which is closer to the upper portion Z1 than the lower end portion extends through the receiving portion 15 and extends above the receiving portion 15 to be connected to the outer case (not shown) . Thereby, the support frame 4 having the support member 13, the washing tub 3 supported by the support frame 4, and the motor (not shown) for rotating the inner tub 11 are supported by the elastic supporting member 5 .

As described above, the front bent portion 13G and the elastic supporting member 5 mounted on the rear bent portion 13H, which are bent toward the washing tub 3 side in the lateral direction X in the supporting member 13, That is, the inside of the support member 13, not on the side opposite to the side facing the washing tub 3, i.e., outside. Thus, the size of the washing machine 1 in the left-right direction X can be reduced. Thus, the installation space of the washing machine 1 can be reduced. Therefore, even if the washing machine 1 has a structure for rotating the washing tub 3, such as the rotating portion 6, the unlocking mechanism 7, the driving mechanism 8, etc., And can be installed on a waterproof plate of a conventional size.

The beam member 14 is formed into an elongated columnar shape in the lateral direction X, and two of the beam members 14 are provided. The beam member 14 is staggered one by one between the front end portion and the rear end portion of the downward bent portion 13I of the pair of support members 13. [ As a result, the rigidity of each support member 13 and the rigidity of the entire support frame 4 can be further improved. Therefore, since the twisting between the pair of support members 13 is suppressed, it is possible to suppress the occurrence of a case where the rotation shaft 12 of the washing tub 3 is burdened due to the twisting.

The rotating part 6 is formed of a metal plate of a substantially fan shape that is thin in the lateral direction X and bulged forward in the Y1 direction when viewed in the lateral direction X. [ The rotating portion 6 is formed in an arc shape along the rotation direction K and has an outer peripheral edge 6A bulged forward. A through hole 6B is formed in the rotary part 6 at a position coinciding with the center of curvature of the outer peripheral edge 6A and passing through the rotary part 6 along the lateral direction X. [ A plurality of recesses 6C are formed in the outer peripheral edge 6A, and five recesses 6C are formed. The concave portion 6C is recessed toward the through hole 6B and passes through the rotation portion 6 along the left and right direction X and is arranged to be arranged along the rotation direction K. [ The interval of the concave portions 6C adjacent to each other can be fixed and may be different depending on the position of the rotation portion 6. [ In the present embodiment, in the rotation section 6 in the embodiment of Fig. 3, the most rearward (Y2) and the rearward (Y1) The two recesses 6C located at the adjacent front positions are spaced from each other in the circumferential direction around the through hole 6B in the rotational direction K by 10 degrees and the interval between adjacent recesses 6C The spacing is all 15 degrees.

The rotation part 6 is arranged closer to the left side X1 than the support member 13 on the left side X1. The rotary shaft 12 protruding from the outer tub 10 of the washing tub 3 to the left side X1 and passing through the support member 13 on the left side X1 is inserted into the through hole 6B of the rotary part 6, And is fixed to the rotating portion 6. Thereby, the rotary part 6 is connected to the washing tub 3 so as to be integrally rotatable by the rotary shaft 12.

3, the rear end of the outer periphery 6A is provided with a radial direction R (hereinafter referred to as " R " An extension portion 6D projecting outwardly of the base portion 6 is integrally provided. The extending portion 6D is elongated in the radial direction R and formed in a thin plate shape in the lateral direction X. [ A guide hole 6E extending in the radial direction R and extending along the left and right direction X is formed in the extension mounting portion 6D. Both ends in the longitudinal direction of the guide hole 6E are in a clogged state. The guide hole 6E is at the same position as the opening 13A of the support member 13 on the left side X1 in the vertical direction Z. [ The guide hole 6E is opposed to the opening 13A at the left-hand end X1, regardless of whether the rotation angle [theta] is 5 to 60 degrees.

The unlocking mechanism 7 is fixed to the left side of the support member 13 on the left side X1. The unlocking mechanism 7 includes a main body portion 17 and a lock portion 18. The main body 17 is provided with an actuator (not shown) constituted by a solenoid or the like. The lock portion 18 is formed to protrude from the body portion 17 in the rear direction Y2 and strictly speaking a protrusion protruding upward in the rear direction and is slid by the body portion 17 in the forward and backward directions Y ). The actuator of the body portion 17 works to slide the lock portion 18 between the entry position in which the lock portion 18 is at the most rearward position Y2 and the position at which the lock portion 18 is retracted from the forward position Y1.

The locking portion 18 in Fig. 3 is in the entry position. When the recess 6C and the lock 18 of the rotation part 6 are at the same position in the rotation direction K, the lock part 18 enters the entry position, And is inserted into the concave portion 6C at the same position. As a result, the rotation of the rotary part 6 and the washing tub 3 is locked. In this state, when the lock portion 18 is retracted to the retreat position, the lock portion 18 is disengaged from the concave portion 6C, so that the rotation portion 6 and the washing tub 3 are unlocked.

3, the lock portion 18 at the entry position is in the state of being located at the uppermost position Z1 and being in the state of being inserted into the recessed portion 6C located at the frontmost position Y1. At this time, in the state that the rotation angle? (See FIG. 1) is 60 degrees, the rotation of the rotation part 6 and the washing tub 3 is locked. The rotation angle? Is reduced and the locking portion 18 is moved to the rear most position Y2 (Y2), as the concave portion 6C in which the locking portion 18 is inserted is changed to the other concave portion 6C located at the rear side Y2 The rotation angle [theta] is 5 degrees and the rotation of the rotary part 6 and the washing tub 3 is locked in this state.

Fig. 4 is a perspective view of the drive mechanism 8. Fig. 4, the driving mechanism 3 is a mechanism for rotating the washing tub 3 and includes a base 30, a support 31, a threaded shaft 32, a motor 33, a coupling 34, a nut member 35, and a sensor 36.

The base portion 30 is formed by bending a metal plate, for example, and integrally includes a vertical wall 37 and a pair of horizontal walls 38 that are vertically arranged. The vertical wall 37 is thin in the left-right direction X and is formed in the shape of a long rectangular plate in the fore-and-aft direction Y. The transverse wall 38 is thin in the vertical direction Z and is formed in a long rectangular plate shape in the forward and backward directions Y. [ In the pair of transverse walls 38, the transverse wall 38 of the upper side Z1 is continuous in the entire region of the upper end of the transverse wall 37 and extends to the left side X1, (38) extend to the left (X1) while continuing in almost the whole area of the lower end of the vertical wall (37).

The left end of each lateral wall 38 is formed as a flange portion 38A which is bent at a substantially right angle outward in the up and down direction Z over the entire area in the front and rear direction Y. [ The flange portion 38A of the transverse wall 38 in the upper direction Z1 is formed to be bent upwardly Z1 and the flange portion 38A of the transverse wall 38 in the lower direction Z2 is bent in the downward direction Z2, . A screw hole 38B is formed in each flange portion 38A.

As described above, the base 30 is formed such that the dividing line of the vertical wall 37 and the lateral wall 38 and the local portion of the rim of the flange portion 38A are bent to form a crank shape. In the base portion 30, a receiving space 30A surrounded by a vertical wall 37 and a pair of upper and lower horizontal walls 38 is formed. A support portion 31, a threaded shaft 32, a coupling 34, a nut member 35, and a sensor 36 are accommodated in the accommodation space 30A.

The base portion 30 is disposed between the support member 13 on the left side X1 and the washing tub 3 so as to be arranged in the left and right direction X with respect to the washing tub 3 and a pair of upper and lower flange portions 38A And is disposed so as to face the rim of the opening 13A of the support member 13 on the left side X1 on the right side X2 (see Fig. 1). By assembling the bolts 39 (see Fig. 1) assembled to the support member 13 on the left side X1 to the screw holes 38B of the respective flange portions 38A, the base portion 30 is moved to the left X1, As shown in Fig. As described above, since the base portion 30 formed by bending the local portion can realize the improvement of the rigidity, the support member 13 is strengthened by the base portion 30. [ Thereby, further improvement of the rigidity of the support member 13 can be realized. The accommodation space 30A of the base portion 30 is exposed to the left X1 from the support member 13 on the left X1 by the opening 13A.

The support portion 31 of the front Y1 is disposed at the front end portion of the vertical wall 37 of the base portion 30 and the rear portion Y2 Is disposed at the rear end of the vertical wall 37. The support portion 31 of the vertical wall 37, Each supporting portion 31 is formed by, for example, bending a metal plate. Each supporting portion 31 integrally includes a body portion 40 and a bottom portion (a stepped portion) 41. The main body portion 40 is formed in a thin plate shape in the forward and backward directions Y and is disposed so as to protrude to the left side X1 from the left side surface of the vertical wall 37 of the base portion 30. [ When viewed in the front-rear direction Y, the annular bearing 42 is mounted on the main body portion 40 so as to pass through the main body portion 40 along the forward and backward directions Y. The bottom portion 41 is in the form of a thin plate in the left-right direction X. In the case of the support 31 of the front Y1, the bottom 41 extends forward from the lower end of the main body 40 in the Y1 direction and overlaps with the front end of the vertical wall 37 in the left X1. do. The bottom portion 41 extends rearward Y2 from the lower end of the main body portion 40 and overlaps with the rear end of the vertical wall 37 on the left side X1 in the case of the support portion 31 on the rear side Y2 do. The support portions 31 are fixed to the base portion 30 by assembling the bulb 43 to the bottom portion 41 and the vertical wall 37. [

The threaded shaft 32 is formed in a circumferential shape elongated along the forward and backward directions Y, and a screw thread 32A extending in a helical shape is formed in almost the entire region of the outer peripheral face. It should be noted that in the drawings other than Fig. 4, the screw thread 32A of the threaded shaft 32 is omitted for convenience of explanation. The front end portion of the threaded shaft 32 is inserted into the annular bearing 42 of the support portion 31 of the front Y1 and the rear end portion of the threaded shaft 32 is inserted into the annular bearing 42 of the support portion 31 of the rear portion Y2. . In this state, the threaded shaft 32 is supported at its both ends so as to be rotatable by the pair of supporting portions 31 in the forward and backward directions.

The motor 33 is a conventional electric motor and has an output shaft 44 projecting in the rear direction Y2 and disposed coaxially with the threaded shaft 32. [ A thin plate-like bracket 45 is mounted on the rear side Y2 of the motor 33 in the forward and backward directions Y. [ And the output shaft 44 is exposed from the bracket 45 in the rear direction Y2. The output shaft 44 is arranged so as to be opposed to the front portion Y1 of the front end portion of the threaded shaft 32 and the portion protruding forward from the main body portion 40 of the support portion 31 in the front direction Y1. The upper end and the lower end of the left end of the bracket 45 are a pair of upper and lower flange portions 45A which are bent at a substantially right angle to the rear direction Y2 and threaded holes 45B are formed in the respective flange portions 45A.

The motor 33 is disposed between the supporting member 13 on the left side X1 and the washing tub 3 at a position closer to the front Y1 than the base 30, 45A are disposed so as to face the marginal portion of the opening 13A of the left X1 support member 13 on the right side X2 (see Fig. 1). The motor 33 is mounted on the bracket 45 by assembling the screw 46 (see Fig. 1) assembled to the support member 13 on the left side X1 into the screw hole 45B of each flange portion 45A And is fixed to the support member 13 on the left side X1. The motor 33 in this state is exposed to the left X1 from the support member 13 on the left X1 by the opening 13A (see Fig. 1).

The coupling 34 includes a tubular output portion 47 which is externally engaged at the rear end of the output shaft 44 of the motor 33 so as to be integrally rotatable; A tubular input portion 48 which is externally engaged at the front end of the threaded shaft 32 so as to be rotatable integrally; And a buffer 49 disposed between the output unit 47 and the input unit 48. The tubular output portion 47 has a plurality of projections 47A arranged along the circumferential direction thereof and projecting in the rear direction Y2. The tubular input section 48 has a plurality of projections 48A arranged along the circumferential direction thereof and projecting forward (Y1). The protruding portion 47A and the protruding portion 48A are alternately arranged in the circumferential direction of the output portion 47 and the input portion 48, respectively. A buffer portion 49 is disposed between the adjacent projecting portion 47A and the projecting portion 48A. The buffering portion 49 is made of an elastic body such as a rubber or a spring. The output shaft 44 and the threaded shaft 32 are connected so as to be rotatable integrally by the coupling 34. Therefore, when the motor 33 is driven to rotate the output shaft 44, the threaded shaft 32 and the output shaft 44 rotate integrally.

The nut member 35 includes a body portion 50, a connecting portion 51, and a sensing portion 52. The main body portion 50 constitutes a ring-shaped nut formed on the inner peripheral surface of a spiral extending screw thread (not shown), and a screw thread 32A of the screw thread 32a Are externally coupled to the threaded shaft 32 so as to be screwed together. When the threaded shaft 32 rotates in accordance with the driving of the motor 33, the entire nut member 35 is moved in the axial direction of the threaded shaft 32, that is, in the forward and backward directions Y Move.

The connection portion 51 is formed of, for example, a bent metal plate, and integrally includes a first portion 51A, a second portion 51B and a third portion 51C. The first portion 51A is formed in a plate shape that is thin in the front-rear direction Y and extends in the vertical direction Z and is fixed to the body portion 50 by a screw 53. [ The second portion 51B is formed in a plate shape that is thin in the left and right directions X and extends in the vertical direction Z and protrudes forward from the left edge of the first portion 51A to Y1, And is opposed to the main body 50 at the left X1 (see FIG. 6 to be described later). The second portion 51B is formed with a through hole 51D passing through the second portion 51B along the left and right direction X. [

The second portion 51B faces the extending portion 6D of the rotary portion 6 on the right side X2 and the guide hole 6E of the extending portion 6D extending from the left side X1 is formed in the through hole 51D. (See Fig. 1). The connecting pin 54 can not be pulled out from the through hole 51D and the guide hole 6E and the nut member 35 is connected to the rotating portion 6 by the connecting pin 54. [ Therefore, when the nut member 35 moves in the forward and backward directions Y in accordance with the rotation of the threaded shaft 32, the rotating member 6 is pulled in the forward and backward directions Y by the nut member 35, ). When the rotation part 6 rotates, the connection pin 54 moves along the longitudinal direction of the guide hole 6E in the guide hole 6E. The third portion 51C is formed in a thin plate shape in the up and down direction Z and protrudes forward from the lower edge of the first portion 51A to the front side Y1 and faces the body portion 50 from the downward direction Z2 .

The to-be-sensed portion 52 is formed in a thin plate shape in the left-right direction X and has a fixed portion 52A and a front end portion 52B integrally. The fixing portion 52A is arranged to overlap with the third portion 51C of the connecting portion 51 at the lower side Z2 and is fixed to the third portion 51C by the screw 55. [ The front end portion 52B is called a position restricting portion and is formed in a rod shape extending from the front end of the fixing portion 52A to the right side X2.

The sensor 36 is a sensor that senses the rotation angle? Of the washing tub 3 in accordance with the position of the nut member 35 in the forward and backward directions Y. The sensor 36 may be an optical non- have. A groove 36A penetrating the sensor 36 along the forward and backward directions Y while being recessed toward the right side X2 is formed on the left side of the sensor 36. The sensor 36 detects the light And cross the groove 36A along the up and down direction Z. [ The number of the sensors 36 is equal to the number of the concave portions 6C of the rotating portion 6, that is, five in this embodiment, and each of the grooves 36A can be observed in the forward and backward directions Y Rear direction Y in a region below the vertical wall 37 of the base portion 30 so as to overlap with each other. Each sensor 36 is secured to the vertical wall 37 by bolts 56. The intervals of the sensors 36 adjacent to each other are set to correspond to the intervals of the concave portions 6C adjacent to each other. Therefore, in this embodiment, although the distance between the sensors 36 adjacent to each other in the four sensors 36 on the rear side Y2 is fixed, the two sensors on the most front side Y1 and the rear side thereof (36) is narrower than the interval between the sensors (36) adjacent to each other.

When the nut member 35 moves in the forward and backward directions Y in accordance with the rotation of the threaded shaft 32, the front end portion 52B of the sensor portion 52 provided on the nut member 35 is engaged with the front end portion 52B of the sensor 36 And passes through the groove 36A. In the state in which the front end portion 52B is inserted into the groove 36A, the detection light of the groove 36A is obscured by the front end portion 52B.

4, in a state in which the front end portion 52B of the to-be-sensed portion 52 is inserted into the groove 36A of the sensor 36 at the rearmost position Y2, And is at the same position as the concave portion 6C at the foremost position Y1 in the rotation direction K and the rotation angle? Of the washing tub 3 is 60 degrees (see FIG. On the other hand, in a state in which the front end portion 52B of the to-be-sensed portion 52 is inserted into the groove 36A of the sensor 36 at the foremost position Y1, And the rotational angle [theta] of the washing tub 3 is 5 [deg.]. The front end portion 52B of the subject sensing portion 52 is positioned at a position corresponding to the groove 64A of the arbitrary sensor 36 when the rotational angle [theta] is any one of 5 degrees, 15 degrees, 30 degrees, 45 degrees, As shown in Fig. Therefore, the five sensors 36 integrally detect the portion 52 of the nut member 35 in a noncontact manner, so that the rotation angle [theta] is 5 degrees, 15 degrees, 30 degrees, 45 degrees, 60 degrees Which is the angle of the vehicle.

Fig. 5 is a left side view of the support member 13 and the drive mechanism 8 on the left side X1, and Fig. 6 is a cross-sectional view taken along the line A-A in Fig. In Fig. 6, the front bent portion 13G is shown by a chain line for convenience of explanation. 6, although the second portion 51B of the connection portion 51 is arranged so as to extend further to the left X1 than the support member 13 of the left X1 in the drive mechanism 8, Almost all of the mechanism 8 is disposed inside the support member 13 on the left X1 side, that is, between the support member 13 and the washing tub 3. Specifically, almost all of the driving mechanism 8 except for the second portion 51B has a front bent portion 13G and a rear bent portion 13G of the supporting member 13 on the left side X1, And is arranged to be accommodated within a range defined by the contour of the portion 13H. Since the drive mechanism 8 is not disposed so as to protrude outside the support member 13 but is disposed between the support member 13 and the washing tub 3 in this way, the downsizing of the washing machine in the lateral direction X can be realized . Thus, the installation space of the washing machine 1 can be reduced.

Fig. 7 is a perspective view of the washing machine 1 according to a modified example observed from the lower side Z2. In the embodiment described above, the support frame 4 includes a pair of support members 13 and a columnar beam member 14 interposed between the pair of support members 13 (see Fig. 3 ). Instead, as shown in Fig. 7, the support frame 4 may be an integral member of a "U" -shaped shape, and may be provided between a pair of support members 13 and a lower end of the pair of support members 13 Shaped bottom member 60 to be formed integrally therewith. The integral support frame 4 realizes the improvement of the rigidity of each support member 13 and the improvement of the rigidity of the whole support frame 4. [ Therefore, since the twisting between the pair of support members 13 can be suppressed, it is possible to restrain the rotation shaft 12 of the washing tub 3 from being burdened by the twisting.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims.

If the movement of the nut member 35 in the front-rear direction Y, that is, the rotation of the washing tub 3, can be restricted when the drive of the motor 33 is stopped, the release mechanism 7 and the rotation unit 6 The concave portion 6C may be omitted. Thereby, the rotation angle [theta] can be steplessly adjusted.

1: Washing machine; 3: washing tub; 4: support frame; 5: elastic support member; 8: drive mechanism; 13: support member; 13F: bent portion; 14: beam member; 30: base portion; 60: bottom member; Z: Up and down direction

Claims (5)

A washing tub which accommodates laundry and is rotatable in a manner intersecting with a vertical direction;
A support member disposed outside the washing tub and supporting the washing tub to be rotatable;
A bent portion provided on the support member and bent toward the washing tub; And
An elastic supporting member mounted on the bent portion and elastically supporting the supporting member; . The method according to claim 1,
And a driving mechanism disposed between the supporting member and the washing tub to rotate the washing tub. 3. The method of claim 2,
The drive mechanism includes:
And a base portion formed to bend the local portion and mounted on the support member. 4. The method according to any one of claims 1 to 3,
A pair of the support members are installed so that the washing tub is inserted,
And a beam member interposed between the pair of support members. 4. The method according to any one of claims 1 to 3,
A pair of the support members are installed so that the washing tub is inserted,
And a support frame which is an integral support frame integrally provided with a bottom member that is interposed between a pair of the support members and the lower ends of the pair of support members.

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