EP3342913A1 - Washing machine - Google Patents
Washing machine Download PDFInfo
- Publication number
- EP3342913A1 EP3342913A1 EP16838583.9A EP16838583A EP3342913A1 EP 3342913 A1 EP3342913 A1 EP 3342913A1 EP 16838583 A EP16838583 A EP 16838583A EP 3342913 A1 EP3342913 A1 EP 3342913A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotating
- rotation
- threaded shaft
- sensor
- nut member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry
- D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and rotating or oscillating about an inclined axis
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/02—Rotary receptacles, e.g. drums
Definitions
- the present invention relates to a washing machine.
- an outer drum part assembled with a rotating drum part with washings thrown therein is supported by a rotation supporting plate by means of an inclined rotation supporting shaft.
- the rotation supporting plate is supported by an outer frame of the clothes washing and drying machine by means of a hoisting rod.
- the outer drum part is provided with a rotation operating rope installing part, and an operating rope connected to the rotation operating rope installing part is coiled on a drum arranged on an inclined rotation motor of the outer frame. With the rotation of the inclined rotation motor, the operating rope moves upwards or downwards.
- the outer drum part obliquely rotates around the inclined rotation supporting shaft.
- the outer drum part is transversely inclined when the washings are thrown into the rotating drum part, and the outer drum part is erected along a perpendicular direction during washing, rinse and dewatering.
- the rotation operating rope installing part, the operating rope and other structures may freely move when a member of a driving mechanism for rotating the outer drum part is configured to assemble the driving mechanism, thereby colliding with surrounding members and damaging the surrounding members.
- Patent Literature 1 Japan specifically disclosed No. 4-166196 Bulletin
- the present invention is based on the background, and aims to provide a washing machine which can prevent a situation of damaging surrounding members due to a member of a driving mechanism for rotating a washing drum, wherein the washing drum can rotate in a manner of intersecting a perpendicular direction.
- the present invention provides a washing machine, including: a washing drum, accommodating washings and is rotatable in a manner of intersecting a perpendicular direction; a rotating part, connected to the washing drum in a manner of integral rotation; a threaded shaft; a motor for rotating the threaded shaft; a nut member, forming threaded connection with the threaded shaft and connected to the rotating part, and moving along an axial direction of the threaded shaft along with rotation of the threaded shaft, so that the rotating part rotates; a supporting part, for supporting the threaded shaft in a manner of rotation; a base part, fixed with the supporting part; a detected part, arranged on the nut member and configured to detect a rotating angle of the rotating part; a rotation-stopping protrusion, arranged on the nut member; a sensor, for detecting the detected part; and a limiting part, formed on the base part, extending along the axial direction in a shape of a straight line and incorporating the rotation-stopping pro
- the limiting part is formed in a shape of a groove; and part of the base part for overlocking an end part of the limiting part in the axial direction is configured in a position in contact with the rotation-stopping protrusion in the axial direction before the nut member comes into contact with the supporting part.
- the base part includes a longitudinal wall and a transverse wall which extends transversely from the longitudinal wall and is provided with the sensor, and the base part is configured on the washing drum in transverse arrangement.
- the senor is a non-contact sensor for detecting the detected part in a non-contact manner.
- the threaded shaft, the motor and the nut member forming threaded connection with the threaded shaft and connected to the rotating part form a driving mechanism for rotating the washing drum.
- the driving mechanism when the motor rotates the threaded shaft, the nut member moves along the axial direction of the threaded shaft so that the rotating part and the washing drum rotate.
- the sensor detects the detected part arranged on the nut member, thereby detecting a rotating angle of the rotating part.
- the limiting part extending along the axial direction in the shape of the straight line is formed on the base part fixed with the supporting part for supporting the threaded shaft rotatably, and the rotation-stopping protrusion arranged on the nut member is incorporated into the limiting part.
- movement of the rotation-stopping protrusion is limited by the limiting part of the base part, and thus the nut member cannot rotate around the threaded shaft. Therefore, a situation that the detected part is collided with the sensor can be prevented from occurring. As a result, a situation that the sensor is damaged due to the detected part can be prevented from occurring.
- the limiting part is formed in a shape of a groove.
- part of the base part for overlocking an end part of the limiting part in the axial direction is configured in a position in contact with the rotation-stopping protrusion in the axial direction before the nut member comes into contact with the supporting part, a situation that the supporting part is damaged due to collision between the nut member and the supporting part can be prevented.
- the base part configured on the washing drum in transverse arrangement is provided with the sensor on the transverse wall extending from the longitudinal wall to the transverse direction.
- front end parts of screws and other fasteners for installing the sensor on the transverse wall are exposed from the transverse wall to an upper side or a lower side.
- the front end parts of the fasteners are not extended from the longitudinal wall to the transverse direction. Therefore, the front end parts of the fasteners can be prevented from contacting the washing drum, thereby realizing transverse spacing saving.
- a situation that the sensor is damaged due to the detected part can be prevented from occurring.
- Fig. 1 is a schematic three-dimensional diagram illustrating a washing machine 1 in an embodiment of the present invention.
- An up-down direction in Fig. 1 is called as an up-down direction Z of the washing machine 1;
- a left-right direction in Fig. 1 is called as a front-rear direction Y of the washing machine 1; and
- a transverse direction approximately orthogonal to paper of Fig. 1 is called as a left-right direction X.
- the up-down direction Z is also a perpendicular direction.
- an upper side is called as an upper side Z1; and a lower side is called as a lower side Z2.
- a right side in Fig. 1 is called as a front side Y1; and a left side in Fig. 1 is called as a rear side Y2.
- a left side in Fig. 1 is called as a rear side Y2.
- an outer side of the paper of Fig. 1 is called as a left side X1; and an inner side of the paper of Fig. 1 is called as a right side X2.
- the washing machine 1 although the washing machine 1 also includes a clothes washing and drying machine with a clothes drying function, the washing machine 1 is described by taking a washing machine which only executes washing operation without explaining the clothes drying function as an example below.
- the washing operation includes a washing process, a rinsing process and a dewatering process.
- the washing machine 1 includes: a housing 2, a washing drum 3 configured in the housing 2, a supporting frame 4, a hoisting rod 5, a rotating part 6, an unlocking mechanism 7 and a driving mechanism 8.
- the housing 2 is, for example, made of metal, and is formed in a shape of a box.
- a connecting surface 2C for connecting a front surface 2A and an upper surface 2B is arranged on the housing 2.
- the connecting surface 2C is, for example, an inclined surface which drops towards the front side Y1.
- An outlet-inlet (not shown) for throwing in and taking out washings from the washing machine 1 is formed in a manner of bridging the front surface 2A and the connecting surface 2C.
- the washing drum 3 includes an outer drum 10 and an inner drum 11.
- the outer drum 10 is, for example, made of resin, and is formed in a bottomed cylindrical shape.
- An imaginary straight line passing through a center of a circle of the outer drum 10 is a central shaft J of the outer drum 10.
- a circular opening 10A through which the washings thrown in and taken out from the washing machine 1 pass is formed in an upper end part of the outer drum 10 on an opposite side of a bottom wall (not shown).
- Metal rotating shafts 12 protruding to an outer side of the left-right direction X are arranged one by one on left and right side surfaces of the outer drum 10.
- Fig. 1 only shows the rotating shaft 12 on the left side X1.
- the pair of left and right rotating shafts 12 are configured in a same position when observed from the left-right direction X.
- the inner drum 11 is, for example, made of metal, and is formed in a bottomed cylindrical shape smaller than the outer drum 10 by one circle.
- the washings are accommodated into the inner drum 11.
- a circular opening 11A through which the washings accommodated into the inner drum 11 pass is formed in an upper end part of the inner drum 11 on an opposite side of a bottom wall (not shown).
- the inner drum 11 is coaxially accommodated into the outer drum 10. Therefore, the central shaft of the inner drum 11 is the above central shaft J.
- an opening 11A of the inner drum 11 is located at an inner side of an opening 10A of the outer drum 10.
- the opening 10A and the opening 11A are opposite to the outlet-inlet (not shown) of the housing 2.
- washings can be thrown in and taken out of the inner drum 11.
- a plurality of through holes 11C are formed in a circumferential wall 11B and a bottom wall of the inner drum 11; and water in the outer drum 10 can pass between the outer drum 10 and the inner drum 11 via the through holes 11C. Therefore, a water level in the outer drum 10 is consistent with a water level in the inner drum 11.
- the inner drum 11 rotates around the central shaft J by accepting a driving force from a motor (not shown) arranged in the housing 2.
- the supporting frame 4 is made of metal, and includes a pair of left and right side plates 13 and a beam member 14 erected between lower end parts of the pair of side plates 13.
- Each side plate 13 is formed in an approximately rectangular shape when observed from the left-right direction X, and is thin in the left-right direction X.
- a washing drum 3 is configured between the pair of side plates 13.
- the rotating shaft 12 protruding to the left side X1 penetrates through the side plate 13 on the left side X1, and is supported rotatably by the side plate 13 on the left side X1 via a bearing (not shown).
- the rotating shaft 12 (not shown) protruding to the right side X2 penetrates through the side plate 13 on the right side X2, and is supported rotatably by the side plate 13 on the right side X2 via a bearing (not shown).
- the washing drum 3 is supported by the supporting frame 4, and can rotate around the rotating shaft 12 in a manner of intersecting the up-down direction Z.
- the central shaft J of the outer drum 10 and the inner drum 11 is inclined to the front-rear direction Y relative to the up-down direction Z.
- a rotating direction of the washing drum 3 is called as a rotating direction K.
- a crossing angle at a sharp angle between an imaginary reference shaft L extending along the up-down direction Z and the central shaft J is a rotating angle ⁇ of the washing drum 3 relative to the reference shaft L.
- the smaller the rotating angle ⁇ the closer to an erecting posture by the washing drum 3.
- the larger the rotating angle ⁇ is, the more inclined to the front side Y1 the washing drum 3 is in such a manner that the opening 10A of the outer drum 10 and the opening 11A of the inner drum 11 face the front side Y1.
- the rotating angle ⁇ can be changed at, for example, five levels of 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees.
- the rotating angle ⁇ is set as 45 degrees in such a manner that throwing of the washings becomes easy; and then, under a condition of detecting a load of the washings or supplying water to the washing drum 3, the rotating angle ⁇ is set as 5 degrees. Then, in the washing process and the rinsing process, to promote position alternation of the washings in the inner drum 11 to realize efficient washing and rinsing, the rotating angle ⁇ is set to change between 5 degrees and 60 degrees.
- An opening 13A penetrating through the side plate 13 along the left-right direction X is formed in a region that the side plate 13 on the left side X1 is closer to the lower side Z2 than the rotating shaft 12.
- the opening 13A is formed in an approximately rectangular shape which is long in the front-rear direction Y.
- An accepting part 15 protruding to an outer side in the front-rear direction Y is arranged at a front end edge and a rear end edge of each side plate 13.
- the accepting part 15 can be formed integrally with the side plate 13, and can also be installed as, for example, another component made of resin, on the side plate 13.
- Hoisting rods 5 are formed in a shape of a rod having a friction damper 16 at the lower end part. Four hoisting rods 5 are arranged, and one hoisting rod is respectively configured at four corners in the housing 2 when observed from top from the upper side Z1. The hoisting rods 5 are in a suspended state from the upper part of the housing 2, and specifically from a metal outer frame (not shown) forming part of the housing 2.
- a lower end part of the hoisting rod 5 on the front side Y1 is connected with the accepting part 15 at the front side Y1 of the side plate 13 on the left side X1
- a lower end part of the hoisting rod 5 on the rear side Y2 is connected with the accepting part 15 at the rear side Y2 of the side plate 13 on the left side X1.
- a lower end part of the hoisting rod 5 on the front side Y1 is connected with the accepting part 15 at the front side Y1 of the side plate 13 on the right side X2
- a lower end part of the hoisting rod 5 (not shown) on the rear side Y2 is connected with the accepting part 15 (not shown) at the rear side Y2 of the side plate 13 on the right side X2.
- the supporting frame 4 having the side plates 13, the washing drum 3 supported by the supporting frame 4, and the motor (not shown) for rotating the inner drum 11 are elastically supported by the housing 2 via the hoisting rods 5.
- the rotating part 6 is an approximately fan-shaped metal plate which is thin in the left-right direction X and protrudes to the front side Y1 when observed from the left-right direction X.
- the rotating part 6 has an outer circumferential edge 6A which is formed in a circular arc shape along the rotating direction K and protrudes to the front side Y1.
- a through hole 6B penetrating through the rotating part 6 along the left-right direction X is formed in a position on the rotating part 6 consistent with a center of curvature of the outer circumferential edge 6A.
- a plurality of concave parts 6C are formed in the outer circumferential edge 6A, and five concave parts 6C are formed herein.
- the concave parts 6C are sunken towards the through hole 6B, penetrate through the rotating part 6 along the left-right direction X, and are configured in arrangement along the rotating direction K.
- a spacing between adjacent concave parts 6C can be fixed or different due to the position of the rotating part 6.
- two concave parts 6C located on a rear-most side Y2 and an adjacent position are spaced by 10 degrees in the rotating direction K, i.e., in the circumferential direction using the through hole 6B as a center; and the spacing between other adjacent concave parts 6C is fixed as 15 degrees.
- the rotating part 6 is configured to be closer to the left side X1 than the side plate 13 on the left side X1.
- the rotating shaft 12 of the outer drum 10 of the washing drum 3 protruding to the left side X1 and penetrating through the side plate 13 on the left side X1, is inserted into the through hole 6B of the rotating part 6, and is fixed to the rotating part 6.
- the rotating part 6 is connected to the washing drum 3 in a manner of integral rotation via the rotating shaft 12.
- an extending part 6D protruding to the lower side Z2 and specifically protruding to the outer side of a radial direction R of the rotating part 6 using the through hole 6B as a center is integrally arranged.
- the extending part 6D is formed in a shape of a plate which is long in the radial direction R and thin in the left-right direction X.
- a guiding hole 6E which is long in the radial direction R and penetrates through the extending part 6D along the left-right direction X is formed in the extending part 6D. Both ends of a long edge direction of the guiding hole 6E are in a blocked state.
- the guiding hole 6E in the up-down direction Z is located in the same position as the opening 13A of the side plate 13 on the left side X1. Regardless of a value of the rotating angle ⁇ from 5 degrees to 60 degrees, the guiding hole 6E is always opposite to the opening 13A from the left side X1.
- the unlocking mechanism 7 is fixed to a left side surface of the side plate 13 on the left side X1.
- the unlocking mechanism 7 includes a body part 17 and a locking part 18.
- An actuator (not shown) composed of a solenoid and the like is arranged on the body part 17.
- the locking part 18 is formed in a shape of a protrusion protruding from the body part 17 to the rear side Y2, and strictly protruding to the rear upper side, and is supported by the body part 17 in a manner of sliding to the front-rear direction Y.
- the actuator of the body part 17 is operated, so that the locking part 18 slides between an entering position for entering to the rear-most side Y2 and an exiting position for exiting to a front-most side Y1.
- the locking part 18 in Fig. 1 is in the entering position. Under a condition that any concave part 6C of the rotating part 6 is in the same position as the locking part 18 in the rotating direction K, the locking part 18 enters the entering position, thereby being embedded into the concave part 6C in the same position in the rotating direction K. Thus, rotation of the rotating part 6 and the washing drum 3 is locked. In this state, when the locking part 18 exits to the exiting position, since the locking part 18 leaves the concave part 6C, the rotating part 6 and the washing drum 3 are unlocked.
- the locking part 18 in the entering position is in a state of being embedded into the concave part 6C located at the upper-most side Z1 and the front-most side Y1.
- the rotating angle ⁇ is 60 degrees
- the rotation of the rotating part 6 and the washing drum 3 is locked.
- the concave part 6C into which the locking part 18 is embedded becomes another concave part 6C located at the rear side Y2, the rotating angle ⁇ is decreased; and in a state that the locking part 18 is embedded into the concave part 6C at the rear-most side Y2, the rotating angle ⁇ is 5 degrees. In this state, the rotation of the rotating part 6 and the washing drum 3 is locked.
- Fig. 2 is a three-dimensional diagram illustrating the driving mechanism 8. with reference to Fig. 2 , the driving mechanism 8 includes a base part 30, a supporting part 31, a threaded shaft 32, a motor 33, a coupling 34, a nut member 35 and a sensor 36.
- the base part 30 is formed by, for example, bending a metal plate, and integrally includes a longitudinal wall 37 and a pair of upper and lower transverse walls 38.
- the longitudinal wall 37 is formed in a shape of a rectangular plate which is thin in the left-right direction X and long in the front-rear direction Y.
- Each transverse wall 38 is formed in a shape of a rectangular plate which is thin in the up-down direction Z and long in the front-rear direction Y.
- the transverse wall 38 on the upper side Z1 is continuous from an entire region of the upper end of the longitudinal wall 37 and extends to the left side X1
- the transverse wall 38 on the lower side Z2 is continuous from an almost entire region of the lower end of the longitudinal wall 37 and extends to the left side X1.
- each transverse wall 38 serves as a flange part 38A and is formed in a manner of being bent into an approximately right angle to the outer side of the up-down direction Z of the entire region throughout the front-rear direction Y.
- the flange part 38A of the transverse wall 38 on the upper side Z1 is formed in a manner of bending to the upper side Z1
- the flange part 38A of the transverse wall 38 on the lower side Z2 is formed in a manner of bending to the lower side Z2.
- a threaded hole 38B is formed in each flange part 38A.
- An accommodating space 30A encircled by the longitudinal wall 37 and a pair of upper and lower transverse walls 38 is formed on the base part 30.
- the supporting part 31, the threaded shaft 32, the coupling 34, the nut member 35 and the sensor 36 are accommodated in the accommodating space 30A.
- a limiting part 38C is formed on a part of the transverse wall 38 on the upper side Z1 closer to the right side X2 than the flange part 38A.
- the limiting part 38C is formed in a shape of a groove slenderly extending along the front-rear direction Y in a shape of a straight line. Therefore, a long edge direction of the limiting part 38C is the front-rear direction Y, and a short edge direction of the limiting part 38C is the left-right direction X.
- the limiting part 38C is formed by penetrating through the transverse wall 38 on the upper side Z1 along the up-down direction Z in the present embodiment, but can also be a concave part sunk to the upper side Z1 without penetrating through the transverse wall 38.
- the base part 30 has an opening 30B formed by continuously cutting away a part to enable the transverse wall 38 of the upper side Z1 to be closer to the right side X2 than the limiting part 38C and the upper end part of the longitudinal wall 37. Since part of the base part 30 is removed through the opening 30B, integral light weight of the base part 30 can be realized.
- the base part 30 is configured between the side plate 13 on the left side X1 and the washing drum 3 in a manner of being parallel to the washing drum 3 along the left-right direction X, and a pair of upper and lower flange parts 38A are configured oppositely from circumferential parts of the openings 13A of the side plates 13 on the right side X2 and the left side X1 (with reference to Fig. 1 ). Screws 39 (with reference to Fig. 1 ) assembled on the side plate 13 on the left side X1 are also assembled on the threaded hole 38B of each flange part 38A.
- the base part 30 is fixed to the side plate 13 on the left side X1.
- the accommodating space 30A of the base part 30 is exposed from the side plate 13 on the left side X1 to the left side X1 via the opening 13A (with reference to Fig. 1 ).
- a pair of supporting parts 31 are arranged separately along the front-rear direction Y.
- the supporting part 31 on the front side Y1 is configured on the front end part of the longitudinal wall 37 of the base part 30, and the supporting part 31 on the rear side Y2 is configured on the rear end part of the longitudinal wall 37.
- Each supporting part 31 is formed by, for example, bending the metal plate.
- Each supporting part 31 integrally includes a body part 40 and a base part 41.
- the body part 40 is in a shape of a plate which is thin in the front-rear direction Y, and is configured to protrude from the left side surface of the longitudinal wall 37 of the base part 30 to the left side X1.
- a bearing 42 which is annular when observed from the front-rear direction Y is installed on the body part 40 in a manner of penetrating through the body part 40 along the front-rear direction Y.
- the base part 41 is in a shape of a plate which is thin in the left-right direction X.
- the supporting part 31 on the front side Y1 is configured in such a manner that the base part 41 extends from the lower end of the body part 40 to the front side Y1, and is overlapped with the front end part of the longitudinal wall 37 when observed from the left side X1.
- the supporting part 31 on the rear side Y2 is configured in such a manner that the base part 41 extends from the lower end of the body part 40 to the rear side Y2, and is overlapped with the rear end part of the longitudinal wall 37 when observed from the left side X1.
- each supporting part 31 is fixed to the base part 30.
- the threaded shaft 32 is formed in a cylindrical shape slenderly extending along the front-rear direction Y, and a screw thread 32A which extends helically is formed on an almost entire region of the outer circumferential surface. It should be noted that in each figure except Fig. 2 , to facilitate illustration, a figure of the screw thread 32A of the threaded shaft 32 is omitted.
- the rear end part of the threaded shaft 32 is inserted into the annular bearing 42 of the supporting part 31 on the rear side Y2. In this state, the threaded shaft 32 is supported on both ends by a pair of front and rear supporting parts 31 in a manner of rotation.
- the motor 33 is an ordinary electric motor, and has an output shaft 44 protruding to the rear side Y2 and configured coaxially with the threaded shaft 32.
- the motor 33 is provided with a platy bracket 45 which is thin in the front-rear direction Y, from the rear side Y2.
- the output shaft 44 is exposed from the bracket 45 to the rear side Y2.
- the output shaft 44 is opposite, from the front side Y1, to part of the front end part of the threaded shaft 32 extending further to the front side Y1 than the body part 40 of the supporting part 31 on the front side Y1.
- An upper end part and a lower end part of a left end part of the bracket 45 serve as a pair of upper and lower flange parts 45A, and is bent into an approximately right angle to the rear side Y2.
- a threaded hole 45B is formed in each flange part 45A.
- the motor 33 is configured between the side plate 13 on the left side X1 and the washing drum 3 in a position closer to the front side Y1 than the base part 30, the flange parts 45A of the bracket 45 are configured oppositely from circumferential parts of the openings 13A of the side plates 13 on the right side X2 and the left side X1 (with reference to Fig. 1 ).
- the motor 33 is fixed to the side plate 13 on the left side X1 via the bracket 45.
- the motor 33 in this state is exposed from the side plate 13 on the left side X1 to the left side X1 via the opening 13A (with reference to Fig. 1 ).
- the coupling 34 includes: a cylindrical output part 47 externally embedded into a rear end part of the output shaft 44 of the motor 33 in a manner of integral rotation, a cylindrical input part 48 externally embedded into a front end part of the threaded shaft 32 in a manner of integral rotation, and a buffer part 49 configured between the output part 47 and the input part 48.
- the cylindrical output part 47 has a plurality of protrusion parts 47A arranged along the circumferential direction and protruding to the rear side Y2.
- the cylindrical input part 48 has a plurality of protrusion parts 48A arranged along the circumferential direction and protruding to the front side Y1.
- the protrusion part 47A and the protrusion part 48A are in a state of being arranged alternately one by one in the circumferential directions of the output part 47 and the input part 48.
- the buffer part 49 is configured between the adjacent protrusion part 47A and the protrusion part 48A.
- the buffer part 49 is composed of rubber, a spring and other elastic bodies.
- the output shaft 44 and the threaded shaft 32 are connected via the coupling 34 in a manner of integral connection. 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 part 50, a connecting part 51 and a detected part 52.
- the body part 50 is formed on an annular nut having a screw thread 50A (with reference to Fig. 4 below) which extends helically on the inner circumferential surface, and is externally embedded into the threaded shaft 32 in such a manner that the screw thread 50A and the screw thread 32A of the threaded shaft 32 are in mutual threaded connection.
- the nut member 35 integrally moves along the axial direction of the threaded shaft 32, i.e., the front-rear direction Y along with rotation of the threaded shaft 32.
- the connecting part 51 is formed, for example, by bending a metal plate, and integrally includes a first part 51A, a second part 51B and a third part 51C.
- the first part 51A is formed in a shape of a plate which is thin in the front-rear direction Y and extends to the up-down direction Z, and is fixed to the body part 50 through the screws 53.
- a rotation-stopping protrusion 51D protruding to the upper side Z1 is integrally arranged, and the rotation-stopping protrusion 51D is incorporated into the limiting part 38C (with reference to Fig. 4 ) of the transverse wall 38 of the upper side Z1 of the base part 30.
- the second part 51B is formed in a shape of a plate which is thin in the left-right direction X and extends to the up-down direction Z, protrudes from the left end edge of the first part 51A to the front side Y1, is configured to extend from the accommodating space 30A of the base part 30 to the left side X1, and is opposite to the body part 50 from the left side X1 (with reference to Fig. 4 ).
- a through hole 51E penetrating through the second part 51B along the left-right direction X is formed in the second part 51B.
- the second part 51B is opposite to the extending part 6D of the rotating part 6 from the right side X2.
- a connecting pin 54 (with reference to Fig. 1 ) of the guiding hole 6E inserted into the extending part 6D from the left side X1 is inserted into the through hole 51E.
- the connecting pin 54 cannot be taken out of each through hole 51E and guiding hole 6E.
- the nut member 35 is connected with the rotating part 6 via the connecting pin 54. Therefore, when the nut member 35 moves along the front-rear direction Y along with rotation of the threaded shaft 32, the rotating part 6 is pulled to the front-rear direction Y by the nut member 35, so as to rotate with the washing drum 3.
- the third part 51C is formed in a shape of a plate which is thin in the up-down direction Z, protrudes from the lower end edge of the first part 51A to the front side Y1, and is opposite to the body part 50 from the lower side Z2.
- the detected part 52 is formed in a shape of a plate which is thin in the left-right direction X, and integrally includes a fixing part 52A and a front end part 52B.
- the fixing part 52A is configured in a manner of overlapping with the third part 51C of the connecting part 51 from the lower side Z2, and is fixed to the third part 51C through the screws 55.
- the front end part 52B is also called as a limiting part, and is formed in a shape of a rod extending from the front end part of the fixing part 52A to the right side X2.
- the sensor 36 is a sensor for detecting the rotating angle ⁇ of the washing drum 3 according to a position of the nut member 35 in the front-rear direction Y, and as a sensor 36, can be selected from an optical sensor and other optical non-contact sensors.
- a groove 36A sunken to the right side X2 and penetrating through the sensor 36 along the front-rear direction Y is formed in the left side surface of the sensor 36.
- the sensor 36 is in such a state that light transects the groove 36A along the up-down direction Z.
- the quantity of the sensors 36 is the same as the quantity of the concave parts 6C of the rotating part 6.
- each groove 36A is configured in a lower region of the longitudinal wall 37 of the base part 30 in arrangement along the front-rear direction Y in a manner of overlapping when observed from the front-rear direction Y.
- Each sensor 36 is fixed to the longitudinal wall 37 through the screw 56.
- the front end part 56A of the screw 56 is configured to extend from the longitudinal wall 37 to the right side X2 (with reference to Fig. 4 ).
- the spacing between adjacent sensors 36 is set correspondingly to the spacing between adjacent concave parts 6C. Therefore, in the present embodiment, although the spacing between the adjacent sensors 36 in the four sensors 36 on the rear side Y2 is fixed, the spacing between two sensors 36 located on the front-most side Y1 and the rear adjacent position is narrower than the spacing between other adjacent sensors 36.
- the front end part 52B of the detected part 52 arranged on the nut member 35 penetrates through the groove 36A of each sensor 36. Although detection light of the groove 36A is blocked by the front end part 52B in a state that the front end part 52B is embedded into the groove 36A, the front end part 52B does not contact the sensor 36 when penetrating through the groove 36A.
- the above locking part 18 is located at the upper-most side Z1 and is in the same position as the concave part 6C on the front-most side Y1 in the rotating direction K; and the rotating angle ⁇ of the washing drum 3 is 60 degrees (with reference to Fig. 1 ).
- the locking part 18 is in the same position as the concave part 6C on the rear-most side Y2 in Fig.
- the rotating angle ⁇ of the washing drum 3 is 5 degrees.
- the rotating angle ⁇ is any angle of 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees
- the front end part 52B of the detected part 52 is in a state of being embedded into the groove 36A of a certain sensor 36. Therefore, five sensors 36 uniformly detect the detected part 52 on the nut member 35 in a non-contact manner, thereby detecting the rotating angle ⁇ from 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees.
- each sensor 36 includes a groove bottom 36B and a pair of groove side surfaces 36C, wherein the groove bottom 36B is divided into a groove 36A from the right side X2, and a pair of groove side surfaces 36C extend parallelly from the groove bottom 36B to the left side X1.
- the groove bottom 36B is erected between right end edges of the pair of groove side surfaces 36C, an outline of the groove 36A when observed from the front-rear direction Y is formed by the groove bottom 36B and the pair of groove side surfaces 36C.
- the front end part 52B of the detected part 52 in a state of being embedded into the groove 36A from the left side X1 is configured away from both of the groove bottom 36B and the groove side surfaces 36C.
- a clearance between each of the groove bottom 36B and the groove side surfaces 36C and the front end part 52B is called as a clearance 60.
- the rotation-stopping protrusion 51D is inserted into the limiting part 38C of the transverse wall 38 of the upper side Z1 of the base part 30 from the lower side Z2 in a manner of having a slight backlash in the short edge direction of the limiting part 38C, i.e., the left-right direction X.
- a clearance 61 is set between a left side circumferential part 38D of the transverse wall 38 for overlocking the limiting part 38C from the left side X1 and the rotation-stopping protrusion 51D; a clearance 62 is set between a right side circumferential part 38E of the transverse wall 38 for overlocking the limiting part 38C from the right side X2 and the rotation-stopping protrusion 51D; and the clearance 61 and the clearance 62 are smaller than the clearance 60.
- a backlash of the rotation-stopping protrusion 51D in the short edge direction of the limiting part 38C is smaller than a backlash of the detected part 52 in the groove 36A of the sensor 36.
- dimensions of the clearance 61 and the clearance 62 in the left-right direction X are smaller than the clearance 60 between the groove bottom 36B and the front end part 52B in the left-right direction X, and smaller than a dimension of the clearance 60 between the groove side surfaces 36C and the front end part 52B in the up-down direction Z.
- the nut member 35 When the driving mechanism 8 is assembled, the nut member 35 is sometimes in a free state relative to the threaded shaft 32. In this case, it can be contemplated that in a state that the detected part 52 is embedded into the groove 36A of the sensor 36, the nut member 35 rotates freely around the threaded shaft 32. In addition, it can be contemplated that in the washing operation process of the washing machine 1, especially in the dewatering process, the nut member 35 rotates around the threaded shaft 32 due to vibration.
- the front end part 52B of the detected part 52 which sways in the up-down direction Z with the rotation of the nut member 35 may collide with the groove bottom 36B and the groove side surfaces 36C of the sensor 36, thereby damaging the sensor 36 located around the detected part 52.
- the rotation-stopping protrusion 51D arranged on the nut member 35 is incorporated into the limiting part 38C formed on the base part 30 and extending along the front-rear direction Y in a shape of a straight line; and the backlash of the rotation-stopping protrusion 51D in the short edge direction of the limiting part 38C is set to be smaller than the backlash of the detected part 52 in the groove 36A of the sensor 36.
- the rotation-stopping protrusion 51D before the detected part 52 collides with the sensor 36, the rotation-stopping protrusion 51D firstly contacts the circumferential part of the limiting part 38C of the base part 30, i.e., the above left side circumferential part 38D and the right side circumferential part 38E.
- Fig. 5 is a top view illustrating the driving mechanism 8.
- a part of the transverse wall 38 of the upper side Z1 of the base part 30 for overlocking the end part of the limiting part 38C in the front-rear direction Y includes: a front side circumferential part 38F for overlocking the front end of the limiting part 38C and a rear side circumferential part 38G for overlocking the rear end of the limiting part 38C.
- the front side circumferential part 38F is configured in a position in contact with the rotation-stopping protrusion 51D from the front side Y1 firstly before the nut member 35 comes into contact with the supporting part 31 (with reference to Fig. 2 ) on the front side Y1.
- the rear side circumferential part 38G is configured in a position in contact with the rotation-stopping protrusion 51D from the rear side Y2 firstly before the nut member 35 comes into contact with the supporting part 31 (with reference to Fig. 2 ) on the rear side Y2. Therefore, the front side circumferential part 38F is located in a position at least closer to the rear side Y2 than the body part 40 (with reference to Fig. 2 ) of the supporting part 31 on the front side Y1, and the rear side circumferential part 38G is located in a position at least closer to the front side Y1 than the body part 40 (with reference to Fig. 2 ) of the supporting part 31 on the rear side Y2.
- the supporting part 31 can be prevented from being deformed or the bearing 42 (with reference to Fig. 2 ) arranged on the supporting part 31 can be prevented from being damaged due to collision between the nut member 35 and the supporting part 31.
- Fig. 6 is a left view illustrating the driving mechanism 8 in a variation example.
- Fig. 7 is a B-B sectional view of Fig. 6 .
- a same reference numeral is given to a same part as a described part in Fig. 1 to Fig. 5 , and illustration of the part is omitted.
- the sensor 36 is installed on the longitudinal wall 37 in above embodiments, the sensor 36 can be installed on one of the pair of upper and lower transverse walls 38 like variation examples shown in Fig. 6 and Fig. 7 .
- the sensor 36 is installed on the transverse wall 38 on the lower side Z2 from the upper side Z1 in a posture of enabling the groove 36A to face the upper side Z1.
- the front end part 56A of the screw 56 used for installing the sensor 36 on the transverse wall 38 penetrates through the sensor 36 and the transverse wall 38 on the lower side Z2 from the upper side Z1, and is exposed from the transverse wall 38 to the lower side Z2.
- the front end part 56A of the screw 56 does not extend from the longitudinal wall 37 to the left-right direction X. Therefore, the front end part 56A of the screw 56 can be prevented from contacting the washing drum 3, thereby realizing spacing saving in the left-right direction X.
- the front end part 56A of the screw 56 used for installing the sensor 36 on the transverse wall 38 on the upper side Z1 is exposed from the transverse wall 38 on the upper side Z1 to the upper side Z1.
- the senor 36 is not limited to the above-mentioned non-contact sensor, and can also be a contact sensor. Under a condition that the sensor is the contact sensor, as mentioned above, the rotation of the nut member 35 around the threaded shaft 32 is limited. Therefore, a damaged degree of the sensor 36 due to contact between the detected part 52 of the nut member 35 and the sensor 36 can be prevented.
- the limiting part 38C, which is incorporated into the rotation-stopping protrusion 51D of the nut member 35, of the base part 30 may not be formed on the above transverse wall 38 on the upper side Z1, and can be formed on the transverse wall 38 on the lower side Z2, and can also be formed on the longitudinal wall 37.
- the detected part 52 may not be installed on the third part 51C of the connecting part 51 of the nut member 35, and the third part 51C performs a function of the detected part 52.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
- The present invention relates to a washing machine.
- In a clothes washing and drying machine described in a following
patent literature 1, an outer drum part assembled with a rotating drum part with washings thrown therein is supported by a rotation supporting plate by means of an inclined rotation supporting shaft. The rotation supporting plate is supported by an outer frame of the clothes washing and drying machine by means of a hoisting rod. The outer drum part is provided with a rotation operating rope installing part, and an operating rope connected to the rotation operating rope installing part is coiled on a drum arranged on an inclined rotation motor of the outer frame. With the rotation of the inclined rotation motor, the operating rope moves upwards or downwards. Thus, the outer drum part obliquely rotates around the inclined rotation supporting shaft. Thus, the outer drum part is transversely inclined when the washings are thrown into the rotating drum part, and the outer drum part is erected along a perpendicular direction during washing, rinse and dewatering. - In the clothes washing and drying machine described in the
patent literature 1, the rotation operating rope installing part, the operating rope and other structures may freely move when a member of a driving mechanism for rotating the outer drum part is configured to assemble the driving mechanism, thereby colliding with surrounding members and damaging the surrounding members. - Patent Literature 1: Japan specifically disclosed No.
4-166196 - The present invention is based on the background, and aims to provide a washing machine which can prevent a situation of damaging surrounding members due to a member of a driving mechanism for rotating a washing drum, wherein the washing drum can rotate in a manner of intersecting a perpendicular direction.
- The present invention provides a washing machine, including: a washing drum, accommodating washings and is rotatable in a manner of intersecting a perpendicular direction; a rotating part, connected to the washing drum in a manner of integral rotation; a threaded shaft; a motor for rotating the threaded shaft; a nut member, forming threaded connection with the threaded shaft and connected to the rotating part, and moving along an axial direction of the threaded shaft along with rotation of the threaded shaft, so that the rotating part rotates; a supporting part, for supporting the threaded shaft in a manner of rotation; a base part, fixed with the supporting part; a detected part, arranged on the nut member and configured to detect a rotating angle of the rotating part; a rotation-stopping protrusion, arranged on the nut member; a sensor, for detecting the detected part; and a limiting part, formed on the base part, extending along the axial direction in a shape of a straight line and incorporating the rotation-stopping protrusion.
- In addition, in the present invention, the limiting part is formed in a shape of a groove; and part of the base part for overlocking an end part of the limiting part in the axial direction is configured in a position in contact with the rotation-stopping protrusion in the axial direction before the nut member comes into contact with the supporting part.
- In addition, in the present invention, the base part includes a longitudinal wall and a transverse wall which extends transversely from the longitudinal wall and is provided with the sensor, and the base part is configured on the washing drum in transverse arrangement.
- In addition, in the present invention, the sensor is a non-contact sensor for detecting the detected part in a non-contact manner.
- According to the present invention, in the washing machine in which the rotating part is connected to the washing drum, which can rotate in a manner of intersecting a perpendicular direction, in a manner of integral rotation, the threaded shaft, the motor and the nut member forming threaded connection with the threaded shaft and connected to the rotating part form a driving mechanism for rotating the washing drum. For the driving mechanism, when the motor rotates the threaded shaft, the nut member moves along the axial direction of the threaded shaft so that the rotating part and the washing drum rotate. The sensor detects the detected part arranged on the nut member, thereby detecting a rotating angle of the rotating part.
- When the nut member freely rotates around the threaded shaft in a state that the sensor is located around the detected part, the detected part may be collided with the sensor, thereby damaging the sensor. Therefore, the limiting part extending along the axial direction in the shape of the straight line is formed on the base part fixed with the supporting part for supporting the threaded shaft rotatably, and the rotation-stopping protrusion arranged on the nut member is incorporated into the limiting part. In this case, movement of the rotation-stopping protrusion is limited by the limiting part of the base part, and thus the nut member cannot rotate around the threaded shaft. Therefore, a situation that the detected part is collided with the sensor can be prevented from occurring. As a result, a situation that the sensor is damaged due to the detected part can be prevented from occurring.
- In addition, according to the present invention, the limiting part is formed in a shape of a groove. In this case, since part of the base part for overlocking an end part of the limiting part in the axial direction is configured in a position in contact with the rotation-stopping protrusion in the axial direction before the nut member comes into contact with the supporting part, a situation that the supporting part is damaged due to collision between the nut member and the supporting part can be prevented.
- In addition, according to the present invention, the base part configured on the washing drum in transverse arrangement is provided with the sensor on the transverse wall extending from the longitudinal wall to the transverse direction. In this case, front end parts of screws and other fasteners for installing the sensor on the transverse wall are exposed from the transverse wall to an upper side or a lower side. Thus, the front end parts of the fasteners are not extended from the longitudinal wall to the transverse direction. Therefore, the front end parts of the fasteners can be prevented from contacting the washing drum, thereby realizing transverse spacing saving.
- In addition, according to the present invention, under a condition that the sensor is the non-contact sensor, a situation that the sensor is damaged due to the detected part can be prevented from occurring.
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Fig. 1 is a schematic three-dimensional diagram illustrating a washing machine in an embodiment of the present invention; -
Fig. 2 is a three-dimensional diagram illustrating a driving mechanism included in a washing machine; -
Fig. 3 is a left view illustrating the driving mechanism; -
Fig. 4 is an A-A sectional view ofFig. 3 ; -
Fig. 5 is a top view illustrating the driving mechanism; -
Fig. 6 is a left view illustrating a driving mechanism in a variation example; and -
Fig. 7 is a B-B sectional view ofFig. 6 . - 1: Washing machine; 3: Washing drum; 6: Rotating part; 30: Base part; 31: Supporting part; 32: Threaded shaft; 33: Motor; 35: Nut member; 36: Sensor; 37: Longitudinal wall; 38: Transverse wall; 38C: Limiting part; 38F: Front circumferential part; 38G: Rear circumferential part; 51D: Rotation-stopping protrusion; 52: Detected part; X: Left-right direction; Y: Front-rear direction; Z: Up-down direction; θ: Rotating angle.
- Embodiments of the present invention are specifically described below with reference to drawings.
Fig. 1 is a schematic three-dimensional diagram illustrating awashing machine 1 in an embodiment of the present invention. An up-down direction inFig. 1 is called as an up-down direction Z of thewashing machine 1; a left-right direction inFig. 1 is called as a front-rear direction Y of thewashing machine 1; and a transverse direction approximately orthogonal to paper ofFig. 1 is called as a left-right direction X. The up-down direction Z is also a perpendicular direction. In the up-down direction Z, an upper side is called as an upper side Z1; and a lower side is called as a lower side Z2. In the front-rear direction Y, a right side inFig. 1 is called as a front side Y1; and a left side inFig. 1 is called as a rear side Y2. In the left-right direction X, an outer side of the paper ofFig. 1 is called as a left side X1; and an inner side of the paper ofFig. 1 is called as a right side X2. - In the
washing machine 1, although thewashing machine 1 also includes a clothes washing and drying machine with a clothes drying function, thewashing machine 1 is described by taking a washing machine which only executes washing operation without explaining the clothes drying function as an example below. The washing operation includes a washing process, a rinsing process and a dewatering process. Thewashing machine 1 includes: ahousing 2, awashing drum 3 configured in thehousing 2, a supportingframe 4, a hoistingrod 5, a rotating part 6, anunlocking mechanism 7 and adriving mechanism 8. - The
housing 2 is, for example, made of metal, and is formed in a shape of a box. A connectingsurface 2C for connecting afront surface 2A and anupper surface 2B is arranged on thehousing 2. The connectingsurface 2C is, for example, an inclined surface which drops towards the front side Y1. An outlet-inlet (not shown) for throwing in and taking out washings from thewashing machine 1 is formed in a manner of bridging thefront surface 2A and the connectingsurface 2C. - The
washing drum 3 includes anouter drum 10 and aninner drum 11. Theouter drum 10 is, for example, made of resin, and is formed in a bottomed cylindrical shape. An imaginary straight line passing through a center of a circle of theouter drum 10 is a central shaft J of theouter drum 10. In the washing process or the rinsing process, water is stored in theouter drum 10. Acircular opening 10A through which the washings thrown in and taken out from thewashing machine 1 pass is formed in an upper end part of theouter drum 10 on an opposite side of a bottom wall (not shown).Metal rotating shafts 12 protruding to an outer side of the left-right direction X are arranged one by one on left and right side surfaces of theouter drum 10.Fig. 1 only shows the rotatingshaft 12 on the left side X1. The pair of left and rightrotating shafts 12 are configured in a same position when observed from the left-right direction X. - The
inner drum 11 is, for example, made of metal, and is formed in a bottomed cylindrical shape smaller than theouter drum 10 by one circle. The washings are accommodated into theinner drum 11. Acircular opening 11A through which the washings accommodated into theinner drum 11 pass is formed in an upper end part of theinner drum 11 on an opposite side of a bottom wall (not shown). Theinner drum 11 is coaxially accommodated into theouter drum 10. Therefore, the central shaft of theinner drum 11 is the above central shaft J. In a state that theinner drum 11 is accommodated into theouter drum 10, anopening 11A of theinner drum 11 is located at an inner side of anopening 10A of theouter drum 10. Theopening 10A and theopening 11A are opposite to the outlet-inlet (not shown) of thehousing 2. Thus, the washings can be thrown in and taken out of theinner drum 11. A plurality of throughholes 11C are formed in acircumferential wall 11B and a bottom wall of theinner drum 11; and water in theouter drum 10 can pass between theouter drum 10 and theinner drum 11 via the throughholes 11C. Therefore, a water level in theouter drum 10 is consistent with a water level in theinner drum 11. In washing operation, theinner drum 11 rotates around the central shaft J by accepting a driving force from a motor (not shown) arranged in thehousing 2. - The supporting
frame 4 is made of metal, and includes a pair of left andright side plates 13 and abeam member 14 erected between lower end parts of the pair ofside plates 13. Eachside plate 13 is formed in an approximately rectangular shape when observed from the left-right direction X, and is thin in the left-right direction X. Awashing drum 3 is configured between the pair ofside plates 13. - For the
outer drum 10 of thewashing drum 3, the rotatingshaft 12 protruding to the left side X1 penetrates through theside plate 13 on the left side X1, and is supported rotatably by theside plate 13 on the left side X1 via a bearing (not shown). For theouter drum 10, the rotating shaft 12 (not shown) protruding to the right side X2 penetrates through theside plate 13 on the right side X2, and is supported rotatably by theside plate 13 on the right side X2 via a bearing (not shown). Thus, thewashing drum 3 is supported by the supportingframe 4, and can rotate around the rotatingshaft 12 in a manner of intersecting the up-down direction Z. Specifically, with rotation of thewashing drum 3, the central shaft J of theouter drum 10 and theinner drum 11 is inclined to the front-rear direction Y relative to the up-down direction Z. A rotating direction of thewashing drum 3 is called as a rotating direction K. - A crossing angle at a sharp angle between an imaginary reference shaft L extending along the up-down direction Z and the central shaft J is a rotating angle θ of the
washing drum 3 relative to the reference shaft L. The smaller the rotating angle θ, the closer to an erecting posture by thewashing drum 3. The larger the rotating angle θ is, the more inclined to the front side Y1 thewashing drum 3 is in such a manner that theopening 10A of theouter drum 10 and theopening 11A of theinner drum 11 face the front side Y1. The rotating angle θ can be changed at, for example, five levels of 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees. In this case, as an example of application in thewashing machine 1, when the washings are thrown in thewashing drum 3 at the beginning of the washing operation, the rotating angle θ is set as 45 degrees in such a manner that throwing of the washings becomes easy; and then, under a condition of detecting a load of the washings or supplying water to thewashing drum 3, the rotating angle θ is set as 5 degrees. Then, in the washing process and the rinsing process, to promote position alternation of the washings in theinner drum 11 to realize efficient washing and rinsing, the rotating angle θ is set to change between 5 degrees and 60 degrees. - An
opening 13A penetrating through theside plate 13 along the left-right direction X is formed in a region that theside plate 13 on the left side X1 is closer to the lower side Z2 than the rotatingshaft 12. Theopening 13A is formed in an approximately rectangular shape which is long in the front-rear direction Y. An acceptingpart 15 protruding to an outer side in the front-rear direction Y is arranged at a front end edge and a rear end edge of eachside plate 13. The acceptingpart 15 can be formed integrally with theside plate 13, and can also be installed as, for example, another component made of resin, on theside plate 13. - Hoisting
rods 5 are formed in a shape of a rod having afriction damper 16 at the lower end part. Four hoistingrods 5 are arranged, and one hoisting rod is respectively configured at four corners in thehousing 2 when observed from top from the upper side Z1. The hoistingrods 5 are in a suspended state from the upper part of thehousing 2, and specifically from a metal outer frame (not shown) forming part of thehousing 2. In twohoisting rods 5 arranged front and back on the left side X1, a lower end part of the hoistingrod 5 on the front side Y1 is connected with the acceptingpart 15 at the front side Y1 of theside plate 13 on the left side X1, and a lower end part of the hoistingrod 5 on the rear side Y2 is connected with the acceptingpart 15 at the rear side Y2 of theside plate 13 on the left side X1. In twohoisting rods 5 arranged front and back on the right side X2, a lower end part of the hoistingrod 5 on the front side Y1 is connected with the acceptingpart 15 at the front side Y1 of theside plate 13 on the right side X2, and a lower end part of the hoisting rod 5 (not shown) on the rear side Y2 is connected with the accepting part 15 (not shown) at the rear side Y2 of theside plate 13 on the right side X2. Thus, the supportingframe 4 having theside plates 13, thewashing drum 3 supported by the supportingframe 4, and the motor (not shown) for rotating theinner drum 11 are elastically supported by thehousing 2 via the hoistingrods 5. - The rotating part 6 is an approximately fan-shaped metal plate which is thin in the left-right direction X and protrudes to the front side Y1 when observed from the left-right direction X. The rotating part 6 has an outer
circumferential edge 6A which is formed in a circular arc shape along the rotating direction K and protrudes to the front side Y1. A throughhole 6B penetrating through the rotating part 6 along the left-right direction X is formed in a position on the rotating part 6 consistent with a center of curvature of the outercircumferential edge 6A. A plurality ofconcave parts 6C are formed in the outercircumferential edge 6A, and fiveconcave parts 6C are formed herein. Theconcave parts 6C are sunken towards the throughhole 6B, penetrate through the rotating part 6 along the left-right direction X, and are configured in arrangement along the rotating direction K. A spacing between adjacentconcave parts 6C can be fixed or different due to the position of the rotating part 6. In the present embodiment, corresponding to the rotating angle θ set as 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees, in the rotating part 6 under a posture inFig. 1 , twoconcave parts 6C located on a rear-most side Y2 and an adjacent position are spaced by 10 degrees in the rotating direction K, i.e., in the circumferential direction using the throughhole 6B as a center; and the spacing between other adjacentconcave parts 6C is fixed as 15 degrees. - The rotating part 6 is configured to be closer to the left side X1 than the
side plate 13 on the left side X1. The rotatingshaft 12 of theouter drum 10 of thewashing drum 3, protruding to the left side X1 and penetrating through theside plate 13 on the left side X1, is inserted into the throughhole 6B of the rotating part 6, and is fixed to the rotating part 6. Thus, the rotating part 6 is connected to thewashing drum 3 in a manner of integral rotation via the rotatingshaft 12. - In the rotating part 6 under the posture in
Fig. 1 , at the rear end of the outercircumferential edge 6A, an extendingpart 6D protruding to the lower side Z2 and specifically protruding to the outer side of a radial direction R of the rotating part 6 using the throughhole 6B as a center is integrally arranged. The extendingpart 6D is formed in a shape of a plate which is long in the radial direction R and thin in the left-right direction X. A guidinghole 6E which is long in the radial direction R and penetrates through the extendingpart 6D along the left-right direction X is formed in the extendingpart 6D. Both ends of a long edge direction of the guidinghole 6E are in a blocked state. The guidinghole 6E in the up-down direction Z is located in the same position as theopening 13A of theside plate 13 on the left side X1. Regardless of a value of the rotating angle θ from 5 degrees to 60 degrees, the guidinghole 6E is always opposite to theopening 13A from the left side X1. - The unlocking
mechanism 7 is fixed to a left side surface of theside plate 13 on the left side X1. The unlockingmechanism 7 includes abody part 17 and a lockingpart 18. An actuator (not shown) composed of a solenoid and the like is arranged on thebody part 17. The lockingpart 18 is formed in a shape of a protrusion protruding from thebody part 17 to the rear side Y2, and strictly protruding to the rear upper side, and is supported by thebody part 17 in a manner of sliding to the front-rear direction Y. The actuator of thebody part 17 is operated, so that the lockingpart 18 slides between an entering position for entering to the rear-most side Y2 and an exiting position for exiting to a front-most side Y1. - The locking
part 18 inFig. 1 is in the entering position. Under a condition that anyconcave part 6C of the rotating part 6 is in the same position as the lockingpart 18 in the rotating direction K, the lockingpart 18 enters the entering position, thereby being embedded into theconcave part 6C in the same position in the rotating direction K. Thus, rotation of the rotating part 6 and thewashing drum 3 is locked. In this state, when the lockingpart 18 exits to the exiting position, since the lockingpart 18 leaves theconcave part 6C, the rotating part 6 and thewashing drum 3 are unlocked. - In
Fig. 1 , the lockingpart 18 in the entering position is in a state of being embedded into theconcave part 6C located at the upper-most side Z1 and the front-most side Y1. At this moment, in a state that the rotating angle θ is 60 degrees, the rotation of the rotating part 6 and thewashing drum 3 is locked. As theconcave part 6C into which the lockingpart 18 is embedded becomes anotherconcave part 6C located at the rear side Y2, the rotating angle θ is decreased; and in a state that the lockingpart 18 is embedded into theconcave part 6C at the rear-most side Y2, the rotating angle θ is 5 degrees. In this state, the rotation of the rotating part 6 and thewashing drum 3 is locked. -
Fig. 2 is a three-dimensional diagram illustrating thedriving mechanism 8. with reference toFig. 2 , thedriving mechanism 8 includes abase part 30, a supportingpart 31, a threadedshaft 32, amotor 33, acoupling 34, anut member 35 and asensor 36. - The
base part 30 is formed by, for example, bending a metal plate, and integrally includes alongitudinal wall 37 and a pair of upper and lowertransverse walls 38. Thelongitudinal wall 37 is formed in a shape of a rectangular plate which is thin in the left-right direction X and long in the front-rear direction Y. Eachtransverse wall 38 is formed in a shape of a rectangular plate which is thin in the up-down direction Z and long in the front-rear direction Y. In a pair oftransverse walls 38, thetransverse wall 38 on the upper side Z1 is continuous from an entire region of the upper end of thelongitudinal wall 37 and extends to the left side X1, and thetransverse wall 38 on the lower side Z2 is continuous from an almost entire region of the lower end of thelongitudinal wall 37 and extends to the left side X1. - The left end part of each
transverse wall 38 serves as aflange part 38A and is formed in a manner of being bent into an approximately right angle to the outer side of the up-down direction Z of the entire region throughout the front-rear direction Y. Theflange part 38A of thetransverse wall 38 on the upper side Z1 is formed in a manner of bending to the upper side Z1, and theflange part 38A of thetransverse wall 38 on the lower side Z2 is formed in a manner of bending to the lower side Z2. A threadedhole 38B is formed in eachflange part 38A. Anaccommodating space 30A encircled by thelongitudinal wall 37 and a pair of upper and lowertransverse walls 38 is formed on thebase part 30. The supportingpart 31, the threadedshaft 32, thecoupling 34, thenut member 35 and thesensor 36 are accommodated in theaccommodating space 30A. - A limiting
part 38C is formed on a part of thetransverse wall 38 on the upper side Z1 closer to the right side X2 than theflange part 38A. The limitingpart 38C is formed in a shape of a groove slenderly extending along the front-rear direction Y in a shape of a straight line. Therefore, a long edge direction of the limitingpart 38C is the front-rear direction Y, and a short edge direction of the limitingpart 38C is the left-right direction X. The limitingpart 38C is formed by penetrating through thetransverse wall 38 on the upper side Z1 along the up-down direction Z in the present embodiment, but can also be a concave part sunk to the upper side Z1 without penetrating through thetransverse wall 38. Thebase part 30 has anopening 30B formed by continuously cutting away a part to enable thetransverse wall 38 of the upper side Z1 to be closer to the right side X2 than the limitingpart 38C and the upper end part of thelongitudinal wall 37. Since part of thebase part 30 is removed through theopening 30B, integral light weight of thebase part 30 can be realized. - The
base part 30 is configured between theside plate 13 on the left side X1 and thewashing drum 3 in a manner of being parallel to thewashing drum 3 along the left-right direction X, and a pair of upper andlower flange parts 38A are configured oppositely from circumferential parts of theopenings 13A of theside plates 13 on the right side X2 and the left side X1 (with reference toFig. 1 ). Screws 39 (with reference toFig. 1 ) assembled on theside plate 13 on the left side X1 are also assembled on the threadedhole 38B of eachflange part 38A. Thus, thebase part 30 is fixed to theside plate 13 on the left side X1. Theaccommodating space 30A of thebase part 30 is exposed from theside plate 13 on the left side X1 to the left side X1 via theopening 13A (with reference toFig. 1 ). - A pair of supporting
parts 31 are arranged separately along the front-rear direction Y. The supportingpart 31 on the front side Y1 is configured on the front end part of thelongitudinal wall 37 of thebase part 30, and the supportingpart 31 on the rear side Y2 is configured on the rear end part of thelongitudinal wall 37. Each supportingpart 31 is formed by, for example, bending the metal plate. Each supportingpart 31 integrally includes abody part 40 and abase part 41. Thebody part 40 is in a shape of a plate which is thin in the front-rear direction Y, and is configured to protrude from the left side surface of thelongitudinal wall 37 of thebase part 30 to the left side X1. A bearing 42 which is annular when observed from the front-rear direction Y is installed on thebody part 40 in a manner of penetrating through thebody part 40 along the front-rear direction Y. Thebase part 41 is in a shape of a plate which is thin in the left-right direction X. The supportingpart 31 on the front side Y1 is configured in such a manner that thebase part 41 extends from the lower end of thebody part 40 to the front side Y1, and is overlapped with the front end part of thelongitudinal wall 37 when observed from the left side X1. The supportingpart 31 on the rear side Y2 is configured in such a manner that thebase part 41 extends from the lower end of thebody part 40 to the rear side Y2, and is overlapped with the rear end part of thelongitudinal wall 37 when observed from the left side X1. By assembling thescrews 43 on thebase part 41 and thelongitudinal wall 37, each supportingpart 31 is fixed to thebase part 30. - The threaded
shaft 32 is formed in a cylindrical shape slenderly extending along the front-rear direction Y, and ascrew thread 32A which extends helically is formed on an almost entire region of the outer circumferential surface. It should be noted that in each figure exceptFig. 2 , to facilitate illustration, a figure of thescrew thread 32A of the threadedshaft 32 is omitted. The rear end part of the threadedshaft 32 is inserted into theannular bearing 42 of the supportingpart 31 on the rear side Y2. In this state, the threadedshaft 32 is supported on both ends by a pair of front and rear supportingparts 31 in a manner of rotation. - The
motor 33 is an ordinary electric motor, and has anoutput shaft 44 protruding to the rear side Y2 and configured coaxially with the threadedshaft 32. Themotor 33 is provided with aplaty bracket 45 which is thin in the front-rear direction Y, from the rear side Y2. Theoutput shaft 44 is exposed from thebracket 45 to the rear side Y2. Theoutput shaft 44 is opposite, from the front side Y1, to part of the front end part of the threadedshaft 32 extending further to the front side Y1 than thebody part 40 of the supportingpart 31 on the front side Y1. An upper end part and a lower end part of a left end part of thebracket 45 serve as a pair of upper andlower flange parts 45A, and is bent into an approximately right angle to the rear side Y2. A threadedhole 45B is formed in eachflange part 45A. - The
motor 33 is configured between theside plate 13 on the left side X1 and thewashing drum 3 in a position closer to the front side Y1 than thebase part 30, theflange parts 45A of thebracket 45 are configured oppositely from circumferential parts of theopenings 13A of theside plates 13 on the right side X2 and the left side X1 (with reference toFig. 1 ). By assembling screws 46 (with reference toFig. 1 ) assembled on theside plate 13 on the left side X1 to the threadedhole 45B of eachflange part 45A, themotor 33 is fixed to theside plate 13 on the left side X1 via thebracket 45. Themotor 33 in this state is exposed from theside plate 13 on the left side X1 to the left side X1 via theopening 13A (with reference toFig. 1 ). - The
coupling 34 includes: acylindrical output part 47 externally embedded into a rear end part of theoutput shaft 44 of themotor 33 in a manner of integral rotation, acylindrical input part 48 externally embedded into a front end part of the threadedshaft 32 in a manner of integral rotation, and abuffer part 49 configured between theoutput part 47 and theinput part 48. Thecylindrical output part 47 has a plurality ofprotrusion parts 47A arranged along the circumferential direction and protruding to the rear side Y2. Thecylindrical input part 48 has a plurality of protrusion parts 48A arranged along the circumferential direction and protruding to the front side Y1. Theprotrusion part 47A and the protrusion part 48A are in a state of being arranged alternately one by one in the circumferential directions of theoutput part 47 and theinput part 48. Thebuffer part 49 is configured between theadjacent protrusion part 47A and the protrusion part 48A. Thebuffer part 49 is composed of rubber, a spring and other elastic bodies. Theoutput shaft 44 and the threadedshaft 32 are connected via thecoupling 34 in a manner of integral connection. Therefore, when themotor 33 is driven to rotate theoutput shaft 44, the threadedshaft 32 and theoutput shaft 44 rotate integrally. - The
nut member 35 includes abody part 50, a connectingpart 51 and a detectedpart 52. Thebody part 50 is formed on an annular nut having ascrew thread 50A (with reference toFig. 4 below) which extends helically on the inner circumferential surface, and is externally embedded into the threadedshaft 32 in such a manner that thescrew thread 50A and thescrew thread 32A of the threadedshaft 32 are in mutual threaded connection. When the threadedshaft 32 rotates with the driving of themotor 33, thenut member 35 integrally moves along the axial direction of the threadedshaft 32, i.e., the front-rear direction Y along with rotation of the threadedshaft 32. - The connecting
part 51 is formed, for example, by bending a metal plate, and integrally includes afirst part 51A, asecond part 51B and athird part 51C. Thefirst part 51A is formed in a shape of a plate which is thin in the front-rear direction Y and extends to the up-down direction Z, and is fixed to thebody part 50 through thescrews 53. At an upper end edge of thefirst part 51A, a rotation-stoppingprotrusion 51D protruding to the upper side Z1 is integrally arranged, and the rotation-stoppingprotrusion 51D is incorporated into the limitingpart 38C (with reference toFig. 4 ) of thetransverse wall 38 of the upper side Z1 of thebase part 30. Thesecond part 51B is formed in a shape of a plate which is thin in the left-right direction X and extends to the up-down direction Z, protrudes from the left end edge of thefirst part 51A to the front side Y1, is configured to extend from theaccommodating space 30A of thebase part 30 to the left side X1, and is opposite to thebody part 50 from the left side X1 (with reference toFig. 4 ). A throughhole 51E penetrating through thesecond part 51B along the left-right direction X is formed in thesecond part 51B. - The
second part 51B is opposite to the extendingpart 6D of the rotating part 6 from the right side X2. A connecting pin 54 (with reference toFig. 1 ) of the guidinghole 6E inserted into the extendingpart 6D from the left side X1 is inserted into the throughhole 51E. The connecting pin 54 cannot be taken out of each throughhole 51E and guidinghole 6E. Thenut member 35 is connected with the rotating part 6 via the connecting pin 54. Therefore, when thenut member 35 moves along the front-rear direction Y along with rotation of the threadedshaft 32, the rotating part 6 is pulled to the front-rear direction Y by thenut member 35, so as to rotate with thewashing drum 3. When the rotating part 6 rotates, the connecting pin 54 moves along the long edge direction of the guidinghole 6E in the guidinghole 6E. Thethird part 51C is formed in a shape of a plate which is thin in the up-down direction Z, protrudes from the lower end edge of thefirst part 51A to the front side Y1, and is opposite to thebody part 50 from the lower side Z2. - The detected
part 52 is formed in a shape of a plate which is thin in the left-right direction X, and integrally includes a fixingpart 52A and afront end part 52B. The fixingpart 52A is configured in a manner of overlapping with thethird part 51C of the connectingpart 51 from the lower side Z2, and is fixed to thethird part 51C through thescrews 55. Thefront end part 52B is also called as a limiting part, and is formed in a shape of a rod extending from the front end part of the fixingpart 52A to the right side X2. - The
sensor 36 is a sensor for detecting the rotating angle θ of thewashing drum 3 according to a position of thenut member 35 in the front-rear direction Y, and as asensor 36, can be selected from an optical sensor and other optical non-contact sensors. When the optical sensor is used, agroove 36A sunken to the right side X2 and penetrating through thesensor 36 along the front-rear direction Y is formed in the left side surface of thesensor 36. Thesensor 36 is in such a state that light transects thegroove 36A along the up-down direction Z. The quantity of thesensors 36 is the same as the quantity of theconcave parts 6C of the rotating part 6. In other words, five sensors are arranged in the present embodiment, and eachgroove 36A is configured in a lower region of thelongitudinal wall 37 of thebase part 30 in arrangement along the front-rear direction Y in a manner of overlapping when observed from the front-rear direction Y. Eachsensor 36 is fixed to thelongitudinal wall 37 through thescrew 56. Thefront end part 56A of thescrew 56 is configured to extend from thelongitudinal wall 37 to the right side X2 (with reference toFig. 4 ). The spacing betweenadjacent sensors 36 is set correspondingly to the spacing between adjacentconcave parts 6C. Therefore, in the present embodiment, although the spacing between theadjacent sensors 36 in the foursensors 36 on the rear side Y2 is fixed, the spacing between twosensors 36 located on the front-most side Y1 and the rear adjacent position is narrower than the spacing between otheradjacent sensors 36. - When the
nut member 35 moves along the front-rear direction Y along with rotation of the threadedshaft 32, thefront end part 52B of the detectedpart 52 arranged on thenut member 35 penetrates through thegroove 36A of eachsensor 36. Although detection light of thegroove 36A is blocked by thefront end part 52B in a state that thefront end part 52B is embedded into thegroove 36A, thefront end part 52B does not contact thesensor 36 when penetrating through thegroove 36A. - As shown in
Fig. 2 , in a state that thefront end part 52B of the detectedpart 52 is embedded into thegroove 36A of thesensor 36 on the rear-most side Y2, the above lockingpart 18 is located at the upper-most side Z1 and is in the same position as theconcave part 6C on the front-most side Y1 in the rotating direction K; and the rotating angle θ of thewashing drum 3 is 60 degrees (with reference toFig. 1 ). In another aspect, in a state that thefront end part 52B of the detectedpart 52 is embedded into thegroove 36A of thesensor 36 on the front-most side Y1, the lockingpart 18 is in the same position as theconcave part 6C on the rear-most side Y2 inFig. 1 in the rotating direction K; and the rotating angle θ of thewashing drum 3 is 5 degrees. When the rotating angle θ is any angle of 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees, thefront end part 52B of the detectedpart 52 is in a state of being embedded into thegroove 36A of acertain sensor 36. Therefore, fivesensors 36 uniformly detect the detectedpart 52 on thenut member 35 in a non-contact manner, thereby detecting the rotating angle θ from 5 degrees, 15 degrees, 30 degrees, 45 degrees and 60 degrees. -
Fig. 3 is a left view illustrating thedriving mechanism 8.Fig. 4 is an A-A sectional view ofFig. 3 . With reference toFig. 4 , eachsensor 36 includes agroove bottom 36B and a pair of groove side surfaces 36C, wherein thegroove bottom 36B is divided into agroove 36A from the right side X2, and a pair of groove side surfaces 36C extend parallelly from thegroove bottom 36B to the left side X1. Thegroove bottom 36B is erected between right end edges of the pair of groove side surfaces 36C, an outline of thegroove 36A when observed from the front-rear direction Y is formed by thegroove bottom 36B and the pair of groove side surfaces 36C. Thefront end part 52B of the detectedpart 52 in a state of being embedded into thegroove 36A from the left side X1 is configured away from both of thegroove bottom 36B and the groove side surfaces 36C. Herein, a clearance between each of thegroove bottom 36B and the groove side surfaces 36C and thefront end part 52B is called as aclearance 60. - The rotation-stopping
protrusion 51D is inserted into the limitingpart 38C of thetransverse wall 38 of the upper side Z1 of thebase part 30 from the lower side Z2 in a manner of having a slight backlash in the short edge direction of the limitingpart 38C, i.e., the left-right direction X. Therefore, aclearance 61 is set between a left sidecircumferential part 38D of thetransverse wall 38 for overlocking the limitingpart 38C from the left side X1 and the rotation-stoppingprotrusion 51D; aclearance 62 is set between a right sidecircumferential part 38E of thetransverse wall 38 for overlocking the limitingpart 38C from the right side X2 and the rotation-stoppingprotrusion 51D; and theclearance 61 and theclearance 62 are smaller than theclearance 60. Namely, in a state that the rotation-stoppingprotrusion 51D is incorporated into the limitingpart 38C, a backlash of the rotation-stoppingprotrusion 51D in the short edge direction of the limitingpart 38C is smaller than a backlash of the detectedpart 52 in thegroove 36A of thesensor 36. Specifically, dimensions of theclearance 61 and theclearance 62 in the left-right direction X are smaller than theclearance 60 between thegroove bottom 36B and thefront end part 52B in the left-right direction X, and smaller than a dimension of theclearance 60 between the groove side surfaces 36C and thefront end part 52B in the up-down direction Z. - When the
driving mechanism 8 is assembled, thenut member 35 is sometimes in a free state relative to the threadedshaft 32. In this case, it can be contemplated that in a state that the detectedpart 52 is embedded into thegroove 36A of thesensor 36, thenut member 35 rotates freely around the threadedshaft 32. In addition, it can be contemplated that in the washing operation process of thewashing machine 1, especially in the dewatering process, thenut member 35 rotates around the threadedshaft 32 due to vibration. When thenut member 35 rotates, thefront end part 52B of the detectedpart 52 which sways in the up-down direction Z with the rotation of thenut member 35 may collide with thegroove bottom 36B and the groove side surfaces 36C of thesensor 36, thereby damaging thesensor 36 located around the detectedpart 52. - Therefore, as mentioned above, the rotation-stopping
protrusion 51D arranged on thenut member 35 is incorporated into the limitingpart 38C formed on thebase part 30 and extending along the front-rear direction Y in a shape of a straight line; and the backlash of the rotation-stoppingprotrusion 51D in the short edge direction of the limitingpart 38C is set to be smaller than the backlash of the detectedpart 52 in thegroove 36A of thesensor 36. In this case, before the detectedpart 52 collides with thesensor 36, the rotation-stoppingprotrusion 51D firstly contacts the circumferential part of the limitingpart 38C of thebase part 30, i.e., the above left sidecircumferential part 38D and the right sidecircumferential part 38E. Therefore, movement of the rotation-stoppingprotrusion 51D in the short edge direction of the limitingpart 38C is limited. Thus, thenut member 35 cannot rotate around the threadedshaft 32. Therefore, the detectedpart 52 can be prevented from colliding with thesensor 36. As a result, a situation that thesensor 36 is damaged due to the detectedpart 52 can be prevented from occurring. -
Fig. 5 is a top view illustrating thedriving mechanism 8. With reference toFig. 5 , a part of thetransverse wall 38 of the upper side Z1 of thebase part 30 for overlocking the end part of the limitingpart 38C in the front-rear direction Y includes: a front sidecircumferential part 38F for overlocking the front end of the limitingpart 38C and a rear sidecircumferential part 38G for overlocking the rear end of the limitingpart 38C. The front sidecircumferential part 38F is configured in a position in contact with the rotation-stoppingprotrusion 51D from the front side Y1 firstly before thenut member 35 comes into contact with the supporting part 31 (with reference toFig. 2 ) on the front side Y1. The rear sidecircumferential part 38G is configured in a position in contact with the rotation-stoppingprotrusion 51D from the rear side Y2 firstly before thenut member 35 comes into contact with the supporting part 31 (with reference toFig. 2 ) on the rear side Y2. Therefore, the front sidecircumferential part 38F is located in a position at least closer to the rear side Y2 than the body part 40 (with reference toFig. 2 ) of the supportingpart 31 on the front side Y1, and the rear sidecircumferential part 38G is located in a position at least closer to the front side Y1 than the body part 40 (with reference toFig. 2 ) of the supportingpart 31 on the rear side Y2. - In this case, before the
nut member 35 comes into contact with the supportingpart 31, the front sidecircumferential part 38F and the rear sidecircumferential part 38G as stopping parts firstly come into contact with the rotation-stoppingprotrusion 51D. Therefore, the supportingpart 31 can be prevented from being deformed or the bearing 42 (with reference toFig. 2 ) arranged on the supportingpart 31 can be prevented from being damaged due to collision between thenut member 35 and the supportingpart 31. -
Fig. 6 is a left view illustrating thedriving mechanism 8 in a variation example.Fig. 7 is a B-B sectional view ofFig. 6 . InFig. 6 andFig. 7 , a same reference numeral is given to a same part as a described part inFig. 1 to Fig. 5 , and illustration of the part is omitted. Although thesensor 36 is installed on thelongitudinal wall 37 in above embodiments, thesensor 36 can be installed on one of the pair of upper and lowertransverse walls 38 like variation examples shown inFig. 6 andFig. 7 . InFig. 6 andFig. 7 , as an embodiment, thesensor 36 is installed on thetransverse wall 38 on the lower side Z2 from the upper side Z1 in a posture of enabling thegroove 36A to face the upper side Z1. In this case, as shown inFig. 7 , thefront end part 56A of thescrew 56 used for installing thesensor 36 on thetransverse wall 38 penetrates through thesensor 36 and thetransverse wall 38 on the lower side Z2 from the upper side Z1, and is exposed from thetransverse wall 38 to the lower side Z2. Thus, thefront end part 56A of thescrew 56 does not extend from thelongitudinal wall 37 to the left-right direction X. Therefore, thefront end part 56A of thescrew 56 can be prevented from contacting thewashing drum 3, thereby realizing spacing saving in the left-right direction X. It should be noted that under a condition that thesensor 36 is installed on thetransverse wall 38 on the upper side Z1 from the lower side Z2 in a posture of enabling thegroove 36A to face the lower side Z2, thefront end part 56A of thescrew 56 used for installing thesensor 36 on thetransverse wall 38 on the upper side Z1 is exposed from thetransverse wall 38 on the upper side Z1 to the upper side Z1. - The present invention is not limited to embodiment described above, and can be changed in various modes within a scope recorded in claims.
- For example, the
sensor 36 is not limited to the above-mentioned non-contact sensor, and can also be a contact sensor. Under a condition that the sensor is the contact sensor, as mentioned above, the rotation of thenut member 35 around the threadedshaft 32 is limited. Therefore, a damaged degree of thesensor 36 due to contact between the detectedpart 52 of thenut member 35 and thesensor 36 can be prevented. - In addition, the limiting
part 38C, which is incorporated into the rotation-stoppingprotrusion 51D of thenut member 35, of thebase part 30 may not be formed on the abovetransverse wall 38 on the upper side Z1, and can be formed on thetransverse wall 38 on the lower side Z2, and can also be formed on thelongitudinal wall 37. - In addition, the detected
part 52 may not be installed on thethird part 51C of the connectingpart 51 of thenut member 35, and thethird part 51C performs a function of the detectedpart 52. - In addition, the above screw can be replaced with rivets and other fasteners.
- In addition, as long as the movement of the
nut member 35 in the front-rear direction Y, i.e., the rotation of thewashing drum 3, can be limited when the driving of themotor 33 is stopped, the unlockingmechanism 7 and theconcave part 6C of the rotating part 6 can be omitted. Thus, stepless adjustment can be made to the rotating angle θ.
Claims (4)
- A washing machine, comprising:a washing drum, accommodating washings and is rotatable in a manner of intersecting a perpendicular direction;a rotating part, connected to the washing drum in a manner of integral rotation;a threaded shaft;a motor, for rotating the threaded shaft;a nut member, forming threaded connection with the threaded shaft and connected to the rotating part, and moving along an axial direction of the threaded shaft along with rotation of the threaded shaft, so that the rotating part rotates;a supporting part, for supporting the threaded shaft in a manner of rotation;a base part, fixed with the supporting part;a detected part, arranged on the nut member and configured to detect a rotating angle of the rotating part;a rotation-stopping protrusion, arranged on the nut member;a sensor, for detecting the detected part; anda limiting part, formed on the base part, extending along the axial direction in a shape of a straight line and incorporating the rotation-stopping protrusion.
- The washing machine according to claim 1, wherein
the limiting part is formed in a shape of a groove; and
part of the base part for overlocking an end part of the limiting part in the axial direction is configured in a position in contact with the rotation-stopping protrusion in the axial direction before the nut member comes into contact with the supporting part. - The washing machine according to claim 1 or 2, wherein
the base part comprises a longitudinal wall and a transverse wall which extends transversely from the longitudinal wall and is provided with the sensor, and the base part is configured on the washing drum in transverse arrangement. - The washing machine according to any one of claims 1-3, wherein
the sensor is a non-contact sensor for detecting the detected part in a non-contact manner.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015166226A JP6681107B2 (en) | 2015-08-25 | 2015-08-25 | Washing machine |
PCT/CN2016/096688 WO2017032325A1 (en) | 2015-08-25 | 2016-08-25 | Washing machine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3342913A1 true EP3342913A1 (en) | 2018-07-04 |
EP3342913A4 EP3342913A4 (en) | 2019-04-10 |
Family
ID=58099592
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16838583.9A Withdrawn EP3342913A4 (en) | 2015-08-25 | 2016-08-25 | Washing machine |
Country Status (6)
Country | Link |
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US (1) | US20180237974A1 (en) |
EP (1) | EP3342913A4 (en) |
JP (1) | JP6681107B2 (en) |
KR (1) | KR102090011B1 (en) |
CN (1) | CN107923100B (en) |
WO (1) | WO2017032325A1 (en) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2597759B2 (en) * | 1991-02-01 | 1997-04-09 | シャープ株式会社 | Drum type washing machine |
JPH0732832B2 (en) * | 1991-07-16 | 1995-04-12 | 株式会社金星社 | Combined washing machine with pulsator and drum |
KR950007848B1 (en) * | 1993-01-20 | 1995-07-20 | 엘지전자주식회사 | Tub rotation detector of complex washer and method thereof |
TW465610U (en) * | 1999-04-30 | 2001-11-21 | Sanyo Electric Co | Washing machine |
DE102004002585A1 (en) * | 2004-01-16 | 2005-08-04 | Herbert Kannegiesser Gmbh | Apparatus for the wet treatment of laundry |
JP2007167263A (en) * | 2005-12-21 | 2007-07-05 | Sanyo Electric Co Ltd | Drum-type washing machine |
CN101356309A (en) * | 2006-03-17 | 2009-01-28 | 三菱电机株式会社 | Washing machine |
JP4647561B2 (en) * | 2006-03-17 | 2011-03-09 | 三菱電機株式会社 | Washing machine |
JP4911605B2 (en) * | 2007-02-22 | 2012-04-04 | 三洋電機株式会社 | Washing machine |
JP5320229B2 (en) * | 2009-09-14 | 2013-10-23 | 日立アプライアンス株式会社 | Washing and drying machine |
CN201933310U (en) * | 2010-10-14 | 2011-08-17 | 吴尚哲 | Energy saving washing machine |
CN102505417A (en) * | 2011-09-26 | 2012-06-20 | 海尔集团公司 | Drum washing machine and inner barrel inclination adjusting device for same |
TW201425684A (en) * | 2012-12-18 | 2014-07-01 | Univ Chienkuo Technology | Linkage variable speed power mechanism |
CN204343050U (en) * | 2014-11-20 | 2015-05-20 | 惠而浦(中国)股份有限公司 | A kind of complex laundry |
-
2015
- 2015-08-25 JP JP2015166226A patent/JP6681107B2/en active Active
-
2016
- 2016-08-25 US US15/755,053 patent/US20180237974A1/en not_active Abandoned
- 2016-08-25 WO PCT/CN2016/096688 patent/WO2017032325A1/en active Application Filing
- 2016-08-25 CN CN201680047860.8A patent/CN107923100B/en active Active
- 2016-08-25 EP EP16838583.9A patent/EP3342913A4/en not_active Withdrawn
- 2016-08-25 KR KR1020187008139A patent/KR102090011B1/en active IP Right Grant
Also Published As
Publication number | Publication date |
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EP3342913A4 (en) | 2019-04-10 |
KR20180042382A (en) | 2018-04-25 |
CN107923100A (en) | 2018-04-17 |
US20180237974A1 (en) | 2018-08-23 |
WO2017032325A1 (en) | 2017-03-02 |
CN107923100B (en) | 2020-02-11 |
JP6681107B2 (en) | 2020-04-15 |
JP2017042326A (en) | 2017-03-02 |
KR102090011B1 (en) | 2020-03-18 |
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