WO2021103933A1 - 洗衣机 - Google Patents

洗衣机 Download PDF

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Publication number
WO2021103933A1
WO2021103933A1 PCT/CN2020/125449 CN2020125449W WO2021103933A1 WO 2021103933 A1 WO2021103933 A1 WO 2021103933A1 CN 2020125449 W CN2020125449 W CN 2020125449W WO 2021103933 A1 WO2021103933 A1 WO 2021103933A1
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WO
WIPO (PCT)
Prior art keywords
door
rotation
operating member
handle
locked position
Prior art date
Application number
PCT/CN2020/125449
Other languages
English (en)
French (fr)
Inventor
西野雅文
森典之
Original Assignee
青岛海尔洗衣机有限公司
Aqua株式会社
海尔智家股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 青岛海尔洗衣机有限公司, Aqua株式会社, 海尔智家股份有限公司 filed Critical 青岛海尔洗衣机有限公司
Priority to CN202080076616.0A priority Critical patent/CN114698382A/zh
Publication of WO2021103933A1 publication Critical patent/WO2021103933A1/zh

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Classifications

    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/28—Doors; Security means therefor
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B3/00—Fastening knobs or handles to lock or latch parts

Definitions

  • the present invention relates to a washing machine having a door that opens and closes a clothes inlet formed in a box.
  • a circular door that opens laterally is provided on the front of the drum-type washing machine.
  • a handle for opening and closing the door is provided on the left hand side of the door. The handle is free to rotate about 1/4 of a turn. In a horizontal state, the door can be opened. When it is rotated 1/4 turn to the right, the door is locked.
  • a through hole for inserting a door lock lever that rotates integrally with the handle is formed, and an appropriate position above the through hole is provided so as to protrude upward and downward. And the back stop pin.
  • the door lock lever inserted into the through hole is approximately vertical.
  • the stop pin protrudes to the inner side of the rotation trajectory of the door lock lever, the rotation of the door lock lever in the leftward rotation direction is blocked by the stop pin, and the door is locked.
  • the stopper pin is retracted to the outside of the rotation trajectory of the door lock lever, so the door lock is released and the handle rotates in the left rotation direction.
  • Patent Document 1 Japanese Patent Laid-Open No. 11-42390
  • an object of the present invention is to provide a washing machine that can prevent the door latch unit from being damaged even when an excessive force is applied to the door handle in the door locked state.
  • the washing machine of the present invention is characterized by comprising: a door provided in the box body to open and close the clothes input port facing the opening of the drum; a door latch unit for prohibiting an opening operation of the door; and an operating member , Provided in the door, and operated to rotate when the door is opened and closed; a rotating shaft that rotates integrally with the door lock lever that can be prevented from rotating by the door latch unit; and a connecting mechanism that connects the operating member Connected to the rotating shaft, the operating member can be rotated within an operable range from the open position to open the door to the locked position to lock the door, and to face the operating member located in the open position
  • the connecting mechanism rotates the rotation shaft corresponding to the rotation of the operating member, and aligns the door lock lever in the state where the door lock lever is prevented from rotating by the door latch unit
  • rotating the rotating shaft corresponding to the rotation of the operating member means that the amount of rotation of the operating member is the same as the amount of rotation of the rotating shaft, and not rotating the rotating shaft corresponding to the rotation of the operating member refers to the amount of rotation of the operating member The amount of rotation is greater than the rotation axis.
  • connection mechanism has a return spring that causes a rotational force toward the locked position to act on the operating member, and when the door lock lever is blocked by the door latch unit When the operating member located at the locked position is no longer rotated in the open position in the rotated state, the operating member is reset to the locked position by the return spring.
  • connection mechanism has a rotation transmission switching unit disposed between the operating member and the rotation shaft, and the door lock lever is prevented from rotating by the door latch unit.
  • the rotation transmission switching unit switches to idle the operating member with respect to the rotating shaft.
  • connection mechanism has a rotation restricting unit, and when the operation member is rotated from the open position toward the locked position, and when the operation is performed When the member is rotated from the locked position toward the open position, the rotation restricting unit restricts the operation member to rotate without exceeding an operable range.
  • the operating member is a long door handle formed of resin, and the operating member is formed such that the door lock lever is prevented from rotating by the door latch unit.
  • the operating member located at the locked position is rotated toward the open position in the state, the operating member is damaged before the door latch unit is damaged.
  • the rotating shaft and the operating member are not rotated Correspondingly rotate, thereby preventing damage to the door latch unit.
  • the operating member at the locked position is no longer rotated toward the open position, the operating member is automatically reset to the locked position, so the operability of the operating member is improved.
  • the operating member when the door lock lever is prevented from rotating by the door latch unit, when the operating member at the locked position is no longer rotated toward the open position, the operating member can be easily automatically operated by the return spring. Reset the ground to the locked position.
  • the operating member at the locked position is rotated toward the open position.
  • the shaft rotates idly, so it can be easily switched to not transmit the rotation of the operating member to the rotating shaft.
  • the operating member can be prevented that when the operating member is rotated from the open position to the locked position, and when the operating member is rotated from the locked position to the open position, the operating member can be prevented from exceeding the limit. Rotate in the operating range.
  • the operating member at the locked position is rotated toward the open position, even if the operating member is due to When the excessive force is rotated beyond the operable range, the operating member is also damaged before the door latch unit is damaged, so it is possible to prevent the door latch unit from being damaged.
  • the repair work compared with repair work when the door latch unit is damaged, when the operating member is damaged, it is only necessary to replace the damaged operating member, and the repair work is easy.
  • Fig. 1 is a perspective view of a washing machine 1 according to an embodiment of the present invention.
  • Fig. 2 is a side sectional view showing the structure of the washing machine 1 of Fig. 1.
  • Fig. 3 is a partial perspective view of the washing machine 1 in a state where the door 8 is opened.
  • Fig. 4(a) is a front view of the handle device 50
  • Fig. 4(b) is a cross-sectional view taken along line aa of Fig. 4(a).
  • FIG. 5 is an exploded perspective view of the handle device 50.
  • Fig. 6(a) is a front view of the handle device 50 in a door open state
  • Fig. 6(b) is a cross-sectional view taken along line aa of Fig. 6(a).
  • FIG. 7 (a) shows the open state of the door handle device 50 in a side view
  • FIG. 7 (b) is a sectional view of a 1 -a 1 line in FIG. 7 (a)
  • FIG. 7 (c) of FIG. 7 A cross-sectional view of the a 2-a 2 line of (a).
  • Fig. 8(a) is a front view of the handle device 50 in the door locked state
  • Fig. 8(b) is a cross-sectional view taken along line aa of Fig. 8(a).
  • FIG. 9 (a) is a side view of the door handle device 50 in the locked state
  • FIG. 9 (b) is a sectional view of a 1 -a 1 line in FIG. 9 (a)
  • FIG. 9 (c) of FIG. 9 A cross-sectional view of the a 2-a 2 line of (a).
  • Fig. 10(a) is a front view of the handle device 50 in a door pry open state
  • Fig. 10(b) is a cross-sectional view taken along the line aa of Fig. 10(a).
  • FIG. 11 (a) is a side view of the door handle device 50 is forced open state
  • FIG. 11 (b) is a sectional view of a 1 -a 1 line of FIG. 11 (a) of FIG. 11 (c) of FIG. a cross-sectional view of a 2 -a 2 line 11 of (a).
  • Fig. 12 is a perspective view of a washing machine according to a modification of the embodiment of the present invention.
  • Fig. 1 is a perspective view of a washing machine 1 according to an embodiment of the present invention.
  • Fig. 2 is a side sectional view showing the structure of the washing machine 1 of Fig. 1.
  • the washing machine 1 of this embodiment is a washing machine that can perform a washing process, a rinsing process, and a dehydration process.
  • the washing machine 1 has a box-shaped box body 2.
  • an outer tube 3 having a substantially cylindrical inner peripheral surface is arranged.
  • the main shaft 5 extending in the direction pivotally supports a drum 4 having a substantially cylindrical inner peripheral surface for accommodating laundry.
  • a clothing input port 6 opposed to the opening 4 a formed at the front end of the drum 4 is formed on the front surface of the box 2 .
  • the box 2 is provided with a door 8 that opens and closes the clothing input port 6.
  • the clothing input port 6 is opened and closed by the door 8, and the laundry can be injected into the drum 4 with the door 8 opened.
  • the inner peripheral surface of the drum 4 is perforated with many water passage holes. The water supplied to the outer tub 3 during washing and rinsing flows into the drum 4 through the water passage holes, and is discharged from the laundry in the drum 4 during centrifugal dehydration. The water passes through the water-passing hole and scatters toward the outer tube 3 side.
  • the main shaft 5 is rotatably supported by a bearing 5a attached to the back wall of the outer cylinder 3, and further, a main pulley 10 is attached to the top end of the main shaft 5 protruding rearward.
  • a motor 11 is provided at the bottom of the box 2, a motor pulley 12 is mounted on the rotating shaft of the motor 11, and the rotational power of the motor pulley 12 is transmitted to the main pulley 10 via a timing belt 16.
  • the drum 4 rotates with the main shaft 5 as the center.
  • a water supply pipe 30 provided with a water supply valve 30a is connected to the upper part of the back wall of the outer cylinder 3.
  • the drain port provided at the bottom of the outer cylinder 3 is connected to a drain pipe 31 provided with a drain valve 31a in the middle.
  • the drain valve 31a is opened, the water in the outer cylinder 3 is discharged through the drain pipe 31 to the outside of the machine.
  • a handle device 50 for opening and closing the door 8 is mounted on the left side of the door 8.
  • FIG. 1 the figure shows a state where the door 8 locks the clothing input port 6, and the door handle 52 is located at a locked position inclined at 45 degrees to the right and diagonally downward with respect to the horizontal.
  • the door handle 52 in this state is rotated 90 degrees in the left rotation direction and moved to an open position inclined 45 degrees to the right and diagonally upward with respect to the horizontal, and the door 3 is opened, the clothes inlet 6 is opened.
  • Fig. 3 is a partial perspective view of the washing machine 1 in a state where the door 8 is opened.
  • a door latch unit 80 as a door locking device is arranged in a portion corresponding to the door handle 50 on the front surface of the box body 2.
  • the door latch unit 80 has a substantially circular fitting hole 81 into which the door lock lever 53a that rotates integrally with the door handle 52 when the door 8 is locked.
  • the diameter of the fitting hole 81 is larger than the length of the door lock lever 53a, so the door lock lever 53a can be rotated in the fitting hole 81.
  • the front end of the fitting hole 81 is blocked by the plate member 82.
  • the plate member 82 is formed with an opening 83 having a substantially circular shape smaller than the diameter of the mounting hole 81, and a part of the opening 83 has a long radial length, and becomes an insertion portion 84 into which the door lock lever 53a is inserted.
  • the longitudinal direction of the insertion portion 84 coincides with the longitudinal direction of the door lock lever 53a in a state where the door handle 52 is in the open position.
  • the diameter of the opening 83 is smaller than the length of the door lock lever 53a, and the length of the insertion portion 84 is longer than the length of the door lock lever 53a in the longitudinal direction.
  • the door lock lever 53a is inserted into the insertion portion 84 and the door handle 52 is rotated to the locked position, the door lock lever 53a is hooked on the outer part of the opening 83 of the plate member 82, The door is maintained in a locked state.
  • the door latch unit 80 has a lock pin 85 provided so as to protrude and retreat with respect to a position capable of preventing the rotation of the door lock lever 53 a inserted into the fitting hole 81.
  • the door lock lever 53a inserted from the insertion portion 84 extends in a substantially vertical direction.
  • the lock pin 85 protrudes to the inside of the rotation trajectory of the door lock lever 53a in the fitting hole 81
  • the rotation of the door lock lever 53a in the leftward rotation direction (the direction in which the door handle 52 rotates from the locked position to the open position) is rotated
  • the locking pin 85 blocks, and the door 8 is locked.
  • the lock pin 85 is retracted to the outside of the rotation trajectory of the door lock lever 53a, so the door lock is released, and the door handle 52 can be rotated in the left rotation direction.
  • FIG. 4(a) is a front view of the handle device 50
  • Fig. 4(b) is a cross-sectional view taken along line aa of Fig. 4(a).
  • FIG. 5 is an exploded perspective view of the handle device 50.
  • the handle device 50 has a rotating shaft sleeve 51 fitted to the door frame 2a of the box 2, a door handle 52 that is rotated when the door 8 is opened and closed, and a rotating shaft having a door lock lever 53a inserted into the door latch unit 80 53. And a connecting mechanism T connecting the door handle 52 and the rotating shaft 53.
  • the rotating shaft sleeve 51 is a member for mounting the handle device 50 to the mounting portion 2a1 of the door frame 2a.
  • the rotating shaft sleeve 51 is fitted to the fitting portion 2a1 of the door frame 2a by screws 51t.
  • the door handle 52 is formed of resin, and has a cylindrical portion 52a and a handle portion 52b.
  • the cylindrical portion 52a is a portion that becomes a rotation axis of the door handle 52
  • the handle portion 52b is a portion that is rotated when the door 8 is opened and closed.
  • the cylindrical portion 52 a of the door handle 52 is arranged so as to cover the rotating shaft sleeve 51.
  • the root portion 52A of the handle portion 52b of the door handle 52 is designed to have a thinner thickness and the weakest strength. That is, it is designed such that when the door handle 52 is rotated by an excessive force, the root portion 52A of the handle portion 52b is easily damaged.
  • the handle sleeve 54 is a member that rotates integrally with the door handle 52 and is arranged inside the cylindrical portion 52 a of the door handle 52.
  • the door handle 52 is assembled to one end of the handle sleeve 54 by a door handle fixing screw 52t. Therefore, the handle shaft sleeve 54 connects the door handle 52 with the rotating shaft 53.
  • a substantially cylindrical protrusion 54 a is formed at the other end of the handle sleeve 54, and the protrusion 54 a is arranged in a hole 51 a formed on the tip surface of the rotating shaft sleeve 51.
  • the hole 51 a has a circular cross section, and the protrusion 54 a of the handle sleeve 54 is rotatably arranged in the hole 51 a of the rotating shaft sleeve 51 via the bearing member 55.
  • the rotating shaft 53 is a member that fixes the door latch unit 80 and the door 8, and a T-shaped door lock lever 53 a that rotates integrally with the rotating shaft 53 is formed at the top end thereof.
  • the door lock lever 53a is a part that is prevented from rotating by the door latch unit 80 when the door 8 is in the locked state.
  • the rotating shaft 53 is rotatably arranged in a through hole 51 b penetrating the rotating shaft sleeve 51 via two bearing members 56.
  • the ratchet mechanism 60 is arranged between the inner peripheral surface of the cylindrical portion 52a of the door handle 52 and the rotating shaft 53, and is for transmitting the rotation of the door handle 52 to the rotating shaft 53 and not transmitting the rotation of the door handle 52 to the rotating shaft.
  • 53 is the idling state to switch the rotation transmission switching unit.
  • Fig. 6(a) is a front view of the handle device 50 in a door open state
  • Fig. 6(b) is a cross-sectional view taken along the line aa of Fig. 6(a).
  • 7 (a) shows the open state of the door handle device 50 in a side view
  • FIG. 7 (b) is a sectional view of a 1 -a 1 line in FIG. 7 (a)
  • FIG. 7 (c) of FIG. 7 A cross-sectional view of the a 2-a 2 line of (a).
  • Fig. 8(a) is a front view of the handle device 50 in the door locked state
  • Fig. 8(b) is a cross-sectional view taken along the line aa of Fig. 8(a).
  • 9 (a) is a side view of the door handle device 50 in the locked state
  • FIG. 9 (b) of FIG. 9 (a) is a cross-sectional view of a 1 -a 1 line in FIG. 9 (c) of FIG. 9 a cross-sectional view of a 2 -a 2 line (a) of.
  • Fig. 10(a) is a front view of the handle device 50 in the door pry-open state
  • Fig. 10(b) is a cross-sectional view taken along the line aa of Fig. 10(a).
  • 11 (a) is a side view of the door handle device 50 is forced open state
  • FIG. 11 (b) is 11 (a) is a cross-sectional view of a 1 -a 1 line of FIG. 11 (c) of FIG. 11 ( a 2 -a 2 a sectional view of line a) is.
  • the ratchet mechanism 60 has a ratchet boss 61, three ratchet springs 62, and three ratchet balls 63.
  • the ratchet sleeve 61 is a circular plate with grooves for idling the door handle 52. As shown in Figure 7(b), Figure 9(b) and Figure 11(b), the ratchet bushing 61 is arranged in the circular recess 54b of the handle bushing 54 and is fitted to it by a nut 61t ⁇ 53 ⁇ Rotating shaft 53. Therefore, the ratchet sleeve 61 and the rotating shaft 53 rotate integrally. Three grooves 61a are formed on the outer periphery of the ratchet sleeve 61 at intervals of 120 degrees. The groove 61 a is formed along the outer shape of the ratchet ball 63.
  • the handle sleeve 54 has a circular recess 54b in which the ratchet sleeve 61 is arranged, and has three through holes 54c penetrating from the substantially cylindrical side surface to the inner peripheral surface of the circular recess 54b.
  • the three through holes 54c are arranged at intervals of 120 degrees.
  • the three ratchet springs 62 are respectively arranged in the three through holes 54 c of the handle sleeve 54. Therefore, the ratchet spring 62 is arranged along the radial direction of the handle sleeve 54.
  • the radially outer end of the ratchet spring 62 is fitted to the radially outer end of the through hole 54 c of the handle sleeve 54 by a fastener 64.
  • the fastener 64 is arranged in the through hole 54 c of the handle sleeve 54.
  • the three ratchet balls 63 are respectively assembled on the radially inner ends of the three ratchet springs 62.
  • the ratchet ball 63 is arranged in the outer peripheral portion of the ratchet sleeve 61 arranged in the circular recess 54b of the handle sleeve 54
  • the ratchet spring 62 is urged toward the radially inner side.
  • the ratchet spring 62 is a spring for pressing the ratchet ball 63 to the ratchet sleeve 61.
  • the state in which the ratchet ball 63 is arranged in the groove 61 a of the ratchet sleeve 61 is a transmission state in which the rotation of the door handle 52 is transmitted to the rotating shaft 53. That is, when the door handle 52 rotates, its rotation is transmitted to the ratchet sleeve 61 via the ratchet spring 62 and the ratchet ball 63. Therefore, the rotation shaft 53 equipped with the ratchet sleeve 61 rotates corresponding to the rotation of the door handle 52.
  • the ball 63 overcomes the urging force of the ratchet spring 62 and moves to the radially outer side, disengages from the groove 61 a of the ratchet sleeve 61, and moves into the through hole 54 c of the handle sleeve 54.
  • the state where the ratchet ball 63 is disengaged from the groove 61 a of the ratchet sleeve 61 is an idling state in which the rotation of the door handle 52 is not transmitted to the rotating shaft 53. That is, even if the door handle 52 rotates, its rotation is not transmitted to the ratchet sleeve 61 via the ratchet spring 62 and the ratchet ball 63. Therefore, the door handle 52 rotates idly with respect to the ratchet sleeve 61, and the rotation shaft 53 equipped with the ratchet sleeve 61 does not rotate corresponding to the rotation of the door handle 52.
  • a rotating rod 65 is attached to the center portion of the rotating shaft 53 in the longitudinal direction via a nut 65t.
  • the rotation lever 65 is a member for restricting the operation rotation range of the door handle 52.
  • the rotating rod 65 has a circular plate portion 65a and a protruding plate that protrudes outward from the outer peripheral portion of the circular plate portion 65a ⁇ 65b.
  • the center of the circular plate portion 65 a coincides with the center axis of the rotating shaft 53.
  • Both ends of the protruding plate portion 65b are arranged at an interval of 90 degrees.
  • the rotating rod 65 is arranged in a recess 51 c formed on the bottom surface of the hole 51 a of the rotating shaft sleeve 51. Both ends of the recessed portion 51c are arranged at an interval of 270 degrees. That is, on the bottom surface of the hole 51a of the rotating shaft sleeve 51, a stepped portion 51d is arranged in a portion where the recessed portion 51c is not formed. Both ends of the stepped portion 51d are arranged at a 90-degree interval.
  • a rotation restricting portion 54 d On the front end surface of the protruding portion 54 a of the handle sleeve 54, there is formed a rotation restricting portion 54 d arranged on the same surface as the rotating rod 65 and the step portion 51 d of the rotating shaft sleeve 51. Both ends of the rotation restricting portion 54d are arranged at an interval of 90 degrees.
  • the operation rotation range of the door handle 52 is restricted to a range of 90 degrees by the shape of the recessed portion 51c of the rotating shaft sleeve 51, the rotation restricting portion 54d of the handle sleeve 54 and the rotation lever 65.
  • the rotation restricting unit N that restricts the door handle 52 from rotating beyond the operable range includes a recessed portion 51c (step portion 51d) of the rotation shaft sleeve 51, a rotation restricting portion 54d of the handle sleeve 54 and a rotation The protruding plate portion 65b of the rod 65.
  • the ratchet ball 63 in order to prevent the ratchet ball 63 from being detached from the groove 61a of the ratchet sleeve 61, it is arranged in the groove 61a on the downstream side of the original groove 61a in the rotation direction.
  • the interval (120 degrees) of the groove 61a of the ratchet sleeve 61 is longer than that of the door handle.
  • the pivotable range of 52 (90 degrees) is large.
  • a groove 54e having a circular cross section is formed on the tip surface of the protrusion 54a of the handle sleeve 54.
  • a handle return spring 66 is arranged in the groove portion 54e of the handle sleeve 54.
  • the handle return spring 66 is a torsion coil spring, and the handle return spring 66 is a spring for applying a rotational force toward the locked position to the door handle 52 to return the idling door handle 52 to the original locked position.
  • One end of the handle return spring 66 is fitted to the inner peripheral surface of the groove portion 54 e of the handle sleeve 54, and the other end is fitted to the rotating rod 65 fitted to the rotating shaft 53.
  • a handle open position holding spring 68 is arranged between the lower surface of the rotating shaft sleeve 51 and the outer peripheral protrusion 53 b protruding from the outer peripheral portion of the rotating shaft 53.
  • the handle open position maintaining spring 68 is a spring for keeping the door handle 52 in the open position when the door 8 is in the open state.
  • the connecting mechanism T connecting the door handle 52 and the rotating shaft 53 includes a rotating shaft sleeve 51, a handle sleeve 54, a ratchet mechanism 60 (ratchet shaft sleeve 61, three ratchet springs 62 and Three ratchet balls 63), a rotating rod 65, a handle return spring 66, and a handle open position retention spring 68.
  • the protruding plate portion 65 b of the rotating rod 65 is arranged at a position opposed to the stepped portion 51 d of the rotating shaft sleeve 51.
  • a gap of 90 degrees is formed, and the rotation restricting portion 54d of the handle sleeve 54 faces Rotation in the right rotation direction is not restricted. Therefore, the rotation of the door handle 52 in the right rotation direction is not restricted by the rotation restricting unit N.
  • the ratchet mechanism 60 is a transmission state that transmits the rotation of the door handle 52 to the rotating shaft 53.
  • each of the three ratchet balls 63 is in a state of being urged inward in the radial direction by the ratchet spring 62 in a state of being arranged in the groove 61 a of the ratchet sleeve 61.
  • the left end of the protruding plate portion 65b of the rotating rod 65 is in contact with the lower end of the stepped portion 51d of the rotating shaft sleeve 51, and the lower end of the rotation restricting portion 54d of the handle sleeve 54 is in contact with the protruding plate of the rotating rod 65
  • the right end of the portion 65b abuts, whereby the rotation of the rotation restriction portion 54d of the handle sleeve 54 in the right rotation direction is restricted. Therefore, the rotation of the door handle 52 in the right rotation direction is restricted by the rotation restriction unit N.
  • the protruding plate portion 65b of the rotating rod 65 is arranged at a position near the lower end of the stepped portion 51d of the rotating shaft sleeve 51 .
  • a gap of 90 degrees is formed, and the rotation restricting portion 54d of the handle sleeve 54 Rotation in the left rotation direction is not restricted. Therefore, the rotation of the door handle 52 in the left rotation direction is not restricted by the rotation restricting unit N.
  • the door lock lever 53 a located at the top end of the rotating shaft 53 is inserted into the fitting hole 81 of the door latch unit 80.
  • the door lock is released, the rotation of the door lock lever 53a inserted into the mounting hole 81 is not blocked by the lock pin 85, and the rotation restricting portion 54d of the handle sleeve 54 rotates to the left.
  • the rotation of is not restricted by the door latch unit 80. Therefore, the rotation of the door handle 52 in the left rotation direction is not restricted by the door latch unit 80.
  • the ratchet mechanism 60 is a transmission state that transmits the rotation of the door handle 52 to the rotating shaft 53.
  • each of the three ratchet balls 63 is in a state of being urged inward in the radial direction by the ratchet spring 62 in a state of being arranged in the groove 61 a of the ratchet sleeve 61.
  • the door When the washing machine 1 is operated, the door is locked, and the rotation of the door handle 52 in the leftward rotation direction is restricted by the door latch unit 80. In this state, when an excessive force to pry open is applied to the door handle 52 located in the locked position toward the open position, the ratchet mechanism 60 switches from the transmission state of transmitting the rotation of the door handle 52 to the rotating shaft 53 to not turning the door. The rotation of the handle 52 is transmitted to the idling state of the rotating shaft 53.
  • the ratchet mechanism 60 exerts an excessive force on the door handle 52 toward the open position, and the ratchet ball 63 disposed in the groove 61a of the ratchet bushing 61 overcomes the urging force of the ratchet spring 62 and moves radially outward, when it moves from the ratchet shaft
  • the groove 61 a of the sleeve 61 is disengaged, it is switched to an idling state in which the rotation of the door handle 52 is not transmitted to the ratchet sleeve 61 via the ratchet spring 62 and the ratchet ball 63.
  • the left end of the rotation restricting portion 54d of the handle sleeve 54 abuts on the upper end of the step portion 51d of the rotating shaft sleeve 51, whereby the rotation of the rotation restricting portion 54d of the handle sleeve 54 in the leftward rotation direction is restricted. . Therefore, the rotation of the door handle 52 in the left rotation direction is restricted by the rotation restriction unit N, which prevents the ratchet ball 63 detached from the groove 61a of the ratchet sleeve 61 from being disposed in the groove 61a downstream of the original groove 61a in the rotation direction.
  • the washing machine 1 of the present embodiment includes: a door 8 provided in the cabinet 2 for opening and closing the clothing inlet 6 facing the opening 4a of the drum 4; a door latch unit 80 that prohibits the opening of the door 8; and a door handle 52 , Is provided in the door 8, and is operated to rotate when the door 8 is opened and closed; the rotating shaft 53, which rotates integrally with the door lock lever 53a that can be prevented from rotating by the door latch unit 80; and the connecting mechanism T, which connects the door handle 52 with the rotating shaft 53 is connected, the door handle 52 can be rotated within the operable range from the open position of the open door 8 to the locked position of the closed door 8.
  • the washing machine 1 of the present embodiment even if the door handle 52 at the locked position is rotated toward the open position in a state where the door lock lever 53a is prevented from being rotated by the door latch unit 80, it does not The rotation shaft 53 is rotated corresponding to the rotation of the door handle 52, thereby preventing the door latch unit 80 from being damaged.
  • the door handle 52 at the locked position is no longer rotated toward the open position, the door handle 52 is automatically reset to the locked position, so the operability of the door handle 52 is improved.
  • the link mechanism T has a handle return spring 66 as a return spring for applying a rotating force toward the locked position to the door handle 52.
  • a handle return spring 66 as a return spring for applying a rotating force toward the locked position to the door handle 52.
  • the handle 52 at the locked position is no longer rotated toward the open position, the handle can be used
  • the reset spring 66 easily resets the door handle 52 to the locked position automatically.
  • the link mechanism T has a ratchet mechanism 60 as a rotation transmission switching unit arranged between the door handle 52 and the rotating shaft 53, and the door lock lever 53a is prevented from rotating by the door latch unit 80.
  • the ratchet mechanism 60 switches to idle the door handle 52 with respect to the rotating shaft 53.
  • the door handle 52 at the locked position when the door handle 52 at the locked position is rotated toward the open position in a state where the door lock lever 53a is prevented from being rotated by the door latch unit 80, the door handle 52 Since it rotates idly with respect to the rotating shaft 53, it can be easily switched not to transmit the rotation of the door handle 52 to the rotating shaft 53.
  • the link mechanism T has a rotation restricting unit N, and when the door handle 52 is rotated from the open position to the locked position, and when the door handle 52 is rotated from the locked position to the open position In the case of operation, the rotation restricting unit N restricts the door handle 52 to rotate without exceeding the operable range.
  • the washing machine 1 of the present embodiment it is possible to prevent the case where the door handle 52 is rotated from the open position to the locked position, and the door handle 52 is rotated from the locked position to the open position. , The door handle 52 rotates beyond the operable range.
  • the door handle 52 is a long door handle formed of resin, and the door handle 52 is formed to oppose the door lock lever 53a in the locked position when the door lock lever 53a is prevented from rotating by the door latch unit 80.
  • the door handle 52 is rotated toward the open position, the door handle 52 is damaged before the door latch unit 80 is damaged.
  • the door handle 52 at the locked position is rotated toward the open position, even when the door When the handle 52 is rotated beyond the operable range due to excessive force, the root 52A of the door handle 52 will also be damaged before the door latch unit 80 is damaged, so the door latch unit 80 can be prevented from being damaged.
  • the repair work when the door latch unit 80 is damaged, when the door handle 52 is damaged, it is only necessary to replace the damaged door handle 52, and the repair work is easy.
  • the connecting mechanism T connecting the door handle 52 and the rotating shaft 53 includes a rotating shaft sleeve 51, a handle sleeve 54, a ratchet mechanism 60 (ratchet shaft sleeve 61, three ratchet springs 62, and three ratchet wheels).
  • the link mechanism T may not include the ratchet mechanism 60 as a rotation transmission switching unit that switches the transmission state of transmitting the rotation of the door handle 52 to the rotating shaft 53 and the idling state that does not transmit the rotation of the door handle 52 to the rotating shaft 53. Even in the case where the connection mechanism T has a rotation transmission switching unit, the rotation transmission switching unit is not limited to the ratchet mechanism 60.
  • the door handle 52 and the rotating shaft 53 are connected by the handle return spring 66.
  • the door handle 52 at the locked position is rotated toward the open position, and the door handle 52 rotates idly with respect to the rotating shaft 53 Turn toward the open position.
  • the door handle 52 is rotated against the rotating force of the handle return spring 66, which is a torsion coil spring, toward the locked position. Therefore, when the door handle 52 is no longer rotated toward the open position, the door handle 52 is reset to the locked position. position. Even in this case, the door handle 52 is restricted by the rotation restricting unit N to rotate within the operable range, so that the handle return spring 66 is prevented from being damaged.
  • the structure of the ratchet mechanism 60 is arbitrary. That is, in the ratchet mechanism 60 of the above embodiment, there are three grooves 61a of the ratchet sleeve 61, the ratchet spring 62, and the ratchet ball 63, but the number of grooves 61a of the ratchet sleeve 61, the ratchet spring 62, and the ratchet ball 63 It can also be one, two, or more than four.
  • connection mechanism T may not have the rotation transmission switching unit. It should be noted that in the present invention, the arrangement of the rotation transmission switching unit between the door handle 52 and the rotation shaft 53 refers to the case where the rotation transmission switching unit is connected to the door handle 52 and the rotation shaft 53 via other members, respectively.
  • the rotation restricting unit N that restricts the door handle 52 to rotate without exceeding the operable range includes the recessed portion 51c (step portion 51d) of the rotation shaft sleeve 51, the rotation restricting portion 54d of the handle sleeve 54 and the rotation The protruding plate portion 65b of the rod 65, but the structure of the rotation restricting unit N is arbitrary.
  • the handle when the door lock lever 53a is prevented from rotating by the door latch unit 80, when the door handle 52 at the locked position is no longer rotated toward the open position, the handle is used as a torsion coil spring for resetting.
  • the spring 66 resets the door handle 52 to the locked position, but the structure for resetting the door handle 52 to the locked position is arbitrary.
  • the operating member is the door handle 52 having the elongated handle portion 52b, but the shape of the operating member is arbitrary.
  • it may be an operating member 153 having a symmetrical shape.
  • the door latch unit 80 has the lock pin 85 provided to protrude and retreat with respect to the position where the rotation of the door lock lever 53a can be prevented, but the structure of the door latch unit 80 is arbitrary.
  • the door handle 52 is operated within a 90-degree operating range between the locked position inclined to the right and diagonally downward by 45 degrees with respect to the horizontal and the open position inclined to the right and diagonally upward by 45 degrees with respect to the horizontal. Perform a rotating operation, but it is not limited to this.
  • the locked position of the door handle 52 may be a position other than the locked position inclined by 45 degrees to the right and diagonally downward with respect to the horizontal.
  • the open position of the door handle 52 may be a position other than the open position that is inclined upwardly to the right by 45 degrees with respect to the horizontal.
  • the operable range of the door handle 52 may be a range other than 90 degrees.
  • the door handle 52 as an operating member is designed so that the thickness of the root portion 52A of the handle portion 52b is reduced, and the strength is the weakest.
  • the root portion 52A of the door handle 52 is damaged before the door latch unit is damaged, but the damaged portion of the door handle 52 is not limited to the handle 52b.
  • the root 52A in order to weaken the strength of the root portion 52A of the handle portion 52b of the door handle 52, the thickness of the root portion 52A is reduced.
  • a notch may be formed in the root portion 52A of the handle portion 52b to weaken the strength of the root portion 52A.
  • the washing machine 1 that can implement the washing process, the rinsing process, and the dehydration process has been described, but the present invention can also be applied to a washing machine that can implement at least one of the washing process, the rinsing process, and the dehydration process. It can be applied to a washer-dryer that can implement at least one of a washing process, a rinsing process, and a dehydration process and can implement a drying process.

Abstract

一种洗衣机，其防止在被进行了门锁定的状态下对位于闭锁位置的门拉手（52）朝向打开位置进行了转动操作的情况下，门闩锁单元（80）损坏。该洗衣机（1）具备门拉手（52）、旋转轴（53）以及将门拉手（52）与旋转轴（53）连接的连接机构（T），在对位于打开位置的门拉手（52）朝向闭锁位置进行了转动操作的情况下，以及在门锁定杆（53a）未被门闩锁单元（80）阻止旋转的状态下对位于闭锁位置的门拉手（52）朝向打开位置进行了转动操作的情况下，连接机构（T）使旋转轴（53）与门拉手（52）的旋转对应地旋转，并且，在门锁定杆（53a）被门闩锁单元（80）阻止了旋转的状态下对位于闭锁位置的门拉手（52）朝向打开位置进行了转动操作的情况下，连接机构（T）不使旋转轴（53）与门拉手（52）的旋转对应地旋转，并且当不再进行该操作时使门拉手（52）复位至闭锁位置。

Description

洗衣机 技术领域
本发明涉及一种具有对形成于箱体的衣服投入口进行开闭的门的洗衣机。
背景技术
如专利文献1的图3所示，在滚筒式洗衣机的正面设置有横向打开的圆形的门。在门的左手侧设置有用于对门进行开闭的把手。该把手自由旋转约1/4周，在水平状态下，门能打开，当向右旋转方向旋转1/4周时，门被闭锁。
这种洗衣机中，如果在清洗、漂洗时门被打开，则蓄在外筒内的水会溅到外面。此外，因为脱水时滚筒高速旋转，如果门被打开则非常危险。因此，一旦开始运转，则自动地进行所谓的门锁定，以便即使为了打开门而操作把手，门也不会打开。
在以往使用的门闩锁单元中，如专利文献1的图4所示，形成有供与把手一体转动的门锁定杆插入的贯通孔，在贯通孔的上方的适当的位置具有被设置为沿上下突出和后退的止挡销。
当门被关闭而把手被旋转为垂直时，插入贯通孔的门锁定杆大致垂直。这时，当止挡销突出至门锁定杆的旋转轨迹的内侧时，门锁定杆向左旋转方向的旋转被止挡销阻止，门被锁定。然后，当运转结束时，止挡销被退避至门锁定杆的旋转轨迹的外侧，所以门锁定被解除，把手向左旋转方向转动。
现有技术文献
专利文献
专利文献1：日本特开平11－42390号公报
在面向自助洗衣店的商用滚筒式洗衣机和商用滚筒式洗干一体机中，存在如下问题：尽管运转中处于门锁定状态，但是如果想要强行开门而对门拉手施加过剩的力，门闩锁单元就会损坏。例如，在专利文献1的滚筒式洗衣机中， 在门锁定杆的旋转被止挡销阻止的状态下，如果想要通过过剩的力使把手旋转，则过剩的推压力从门锁定杆作用于止挡销，从而止挡销损坏。
发明内容
因此，本发明的目的在于，提供一种洗衣机，其即使在门锁定状态下对门拉手施加了过剩的力的情况下，也能防止门闩锁单元损坏。
用于解决问题的方案
即，本发明的洗衣机的特征在于，具备：门，设置于箱体，对与滚筒的开口对置的衣服投入口进行开闭；门闩锁单元，用于禁止所述门的打开动作；操作构件，设置于所述门，在对所述门进行开闭时被进行转动操作；旋转轴，与能被所述门闩锁单元阻止旋转的门锁定杆一体旋转；以及连接机构，将所述操作构件与所述旋转轴连接，所述操作构件能在从打开所述门的打开位置到闭锁所述门的闭锁位置为止的可操作范围内转动，在对位于所述打开位置的所述操作构件朝向所述闭锁位置进行了转动操作的情况下，以及在所述门锁定杆未被所述门闩锁单元阻止旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述连接机构使所述旋转轴与所述操作构件的旋转对应地旋转，并且，在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述连接机构不使所述旋转轴与所述操作构件的旋转对应地旋转，并且当不再进行该操作时使所述操作构件复位至所述闭锁位置。需要说明的是，使旋转轴与操作构件的旋转对应地旋转是指操作构件的旋转量与旋转轴的旋转量相同，不使旋转轴与操作构件的旋转对应地旋转是指操作构件的旋转量比旋转轴的旋转量大。
在本发明的洗衣机中，优选的是，所述连接机构具有使朝向所述闭锁位置的旋转力作用于所述操作构件的复位用弹簧，当在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下不再对位于所述闭锁位置的所述操作构件朝向所述打开位置进行转动操作时，通过所述复位用弹簧使所述操作构件复位至所述闭锁位置。
在本发明的洗衣机中，优选的是，所述连接机构具有配置于所述操作构件与所述旋转轴之间的旋转传递切换单元，在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述旋转传递切换单元切换为使所述操作构件相对于所述旋转轴空转。
在本发明的洗衣机中，优选的是，所述连接机构具有转动限制单元，在对所述操作构件从所述打开位置朝向所述闭锁位置进行了转动操作的情况下，以及在对所述操作构件从所述闭锁位置朝向所述打开位置进行了转动操作的情况下，所述转动限制单元限制为所述操作构件不超过可操作范围地转动。
在本发明的洗衣机中，优选的是，所述操作构件是由树脂形成的长条的门拉手，所述操作构件被形成为：在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述操作构件在所述门闩锁单元损坏之前损坏。
发明效果
在本发明的洗衣机中，即使在门锁定杆被门闩锁单元阻止了旋转的状态下对位于闭锁位置的操作构件朝向打开位置进行了转动操作的情况下，也不使旋转轴与操作构件的旋转对应地旋转，由此能防止门闩锁单元损坏。此外，当不再对位于闭锁位置的操作构件朝向打开位置进行转动操作时，操作构件自动地复位至闭锁位置，所以操作构件的操作性提高。
在本发明的洗衣机中，当在门锁定杆被门闩锁单元阻止了旋转的状态下不再对位于闭锁位置的操作构件朝向打开位置进行转动操作时，能通过复位用弹簧容易地使操作构件自动地复位至闭锁位置。
在本发明的洗衣机中，在操作构件位于闭锁位置并且门锁定杆被门闩锁单元阻止了旋转的状态下对位于闭锁位置的操作构件朝向打开位置进行了转动操作的情况下，操作构件相对于旋转轴空转，所以能容易地切换为不将操作构件的旋转传递给旋转轴。
在本发明的洗衣机中，能防止在对操作构件从打开位置朝向闭锁位置进行了转动操作的情况下，以及在对操作构件从闭锁位置朝向打开位置进行了转动 操作的情况下，操作构件超过可操作范围地转动。
在本发明的洗衣机中，在操作构件位于闭锁位置并且门锁定杆被门闩锁单元阻止了旋转的状态下对位于闭锁位置的操作构件朝向打开位置进行了转动操作的情况下，即使在操作构件因过剩的力而超过可操作范围地被进行了转动操作时，操作构件也会在门闩锁单元损坏之前损坏，所以能防止门闩锁单元损坏。此外，与门闩锁单元发生了损坏的情况下的修理工作相比，在操作构件发生了损坏的情况下，只要更换发生了损坏的操作构件即可，修理工作容易。
附图说明
图1是本发明的实施方式的洗衣机1的立体图。
图2是表示图1的洗衣机1的结构的侧剖图。
图3是门8被打开后的状态的洗衣机1的局部立体图。
图4的(a)是拉手装置50的主视图，图4的(b)是图4的(a)的a－a线的剖视图。
图5是拉手装置50的分解立体图。
图6的(a)是门打开状态的拉手装置50的主视图，图6的(b)是图6的(a)的a－a线的剖视图。
图7的(a)是门打开状态的拉手装置50的侧视图，图7的(b)是图7的(a)的a 1－a 1线的剖视图，图7的(c)是图7的(a)的a 2－a 2线的剖视图。
图8的(a)是门闭锁状态的拉手装置50的主视图，图8的(b)是图8的(a)的a－a线的剖视图。
图9的(a)是门闭锁状态的拉手装置50的侧视图，图9的(b)是图9的(a)的a 1－a 1线的剖视图，图9的(c)是图9的(a)的a 2－a 2线的剖视图。
图10的(a)是门撬开状态的拉手装置50的主视图，图10的(b)是图10的(a)的a－a线的剖视图。
图11的(a)是门撬开状态的拉手装置50的侧视图，图11的(b)是图11 的(a)的a 1－a 1线的剖视图，图11的(c)是图11的(a)的a 2－a 2线的剖视图。
图12是本发明的实施方式的变形例的洗衣机的立体图。
附图标记说明
1：洗衣机；2：箱体；3：外筒；4：滚筒；4a：开口；6：衣服投入口；8：门；52：门拉手(操作构件)；53：旋转轴；53a：门锁定杆；54：拉手轴套(handle boss)；60：棘轮机构(旋转传递切换单元)；66：拉手复位用弹簧(复位用弹簧)；80：门闩锁单元；152：操作构件；T：连接机构；N：转动限制单元。
具体实施方式
以下，参照附图对本发明的实施方式的洗衣机1进行说明。图1是本发明的实施方式的洗衣机1的立体图。图2是表示图1的洗衣机1的结构的侧剖图。
本实施方式的洗衣机1是能实施洗涤过程、漂洗过程以及脱水过程的洗衣机。如图1和图2所示，洗衣机1具有箱形的箱体2，在箱体2的内部配置有具有大致圆筒形状的内周面的外筒3，在外筒3的内部，通过沿前后方向延伸的主轴5轴支承有用于收容洗涤物的具有大致圆筒形状的内周面的滚筒4。
在箱体2的前表面，形成有与形成于滚筒4的前端的开口4a对置的衣服投入口6。在箱体2设置有对衣服投入口6进行开闭的门8，衣服投入口6由门8开闭，能在门8被打开的状态下向滚筒4内投取洗涤物。在滚筒4的内周面穿设有许多通水孔，在清洗、漂洗时供给至外筒3内的水穿过通水孔流入滚筒4内，离心脱水时在滚筒4内从洗涤物排出的水穿过该通水孔向外筒3侧飞散。
主轴5以自由旋转的方式由装接于外筒3的背面壁的轴承5a支承，进而，在向后方突出的主轴5的顶端装配有主带轮10。在箱体2的底部设置有马达11，在马达11的旋转轴装配有马达带轮12，马达带轮12的旋转动力经由同步带16传递至主带轮10。由此，当马达11被驱动时，滚筒4以主轴5为中心进行旋转。
在外筒3的背面壁的上部连接有中途设置有供水阀30a的供水管30，当供 水阀30a被打开时，从外部供给的水经由供水管30供向外筒3。设置于外筒3的底部的排水口与中途设置有排水阀31a的排水管31连接，当排水阀31a被打开时，外筒3内的水穿过排水管31排出到机外。
在门8的左侧装配有用于对门8进行开闭操作的拉手装置50。在图1中，图示出门8将衣服投入口6闭锁的状态，门拉手52位于相对于水平向右斜下方向倾斜45度的闭锁位置。当使这个状态的门拉手52向左旋转方向转动90度，移动至相对于水平向右斜上方向倾斜45度的打开位置，拉开门3时，衣服投入口6被打开。
图3是门8被打开后的状态的洗衣机1的局部立体图。如图3所示，在箱体2的前表面中与门拉手50对应的部分，配置有作为门锁定装置的门闩锁单元80。门闩锁单元80具有供在对门8进行闭锁时与门拉手52一体转动的门锁定杆53a插入的大致圆形状的装配孔81。装配孔81的直径比门锁定杆53a的长度大，所以能使门锁定杆53a在装配孔81内旋转。
装配孔81的前端部被板构件82堵住。在板构件82形成有比装配孔81的直径小的大致圆形状的开口83，开口83的局部的径向长度长，成为供门锁定杆53a插入的插入部84。插入部84的长尺寸方向与门拉手52位于打开位置的状态下的门锁定杆53a的长尺寸方向一致。开口83的直径比门锁定杆53a的长度小，并且插入部84的长度比门锁定杆53a的长尺寸方向长度长。因此，如果在门拉手52位于打开位置的状态下，将门锁定杆53a插入插入部84，使门拉手52转动至闭锁位置时，门锁定杆53a钩挂于板构件82的开口83的外侧部分，被维持在门闭锁状态。
此外，在门闭锁状态下，门闩锁单元80具有以相对于能阻止插入装配孔81的门锁定杆53a的旋转的位置进行突出和后退的方式设置的锁定销85。
当门8被关闭且门拉手52被从打开位置转动到闭锁位置时，如图3中单点划线所示，从插入部84插入的门锁定杆53a沿大致上下方向延伸。这时，当锁定销85在装配孔81内突出至门锁定杆53a的旋转轨迹的内侧时，门锁定杆53a向左旋转方向(门拉手52从闭锁位置朝向打开位置转动的方向)的旋转被锁定销85阻止，门8被锁定。然后，当运转结束时，锁定销85退避至门锁定杆53a的旋转轨迹的外侧，所以门锁定被解除，门拉手52能向左旋转方向旋转。
图4的(a)是拉手装置50的主视图，图4的(b)是图4的(a)的a－a线的剖视图。图5是拉手装置50的分解立体图。
拉手装置50具有装配于箱体2的门框2a的旋转轴轴套51、在对门8进行开闭时被进行转动操作的门拉手52、具有插入门闩锁单元80内的门锁定杆53a的旋转轴53、以及将门拉手52与旋转轴53连接的连接机构T。
旋转轴轴套51是将拉手装置50装配于门框2a的装配部2a1的构件。旋转轴轴套51通过螺钉51t装配于门框2a的装配部2a1。
门拉手52由树脂形成，具有筒状部52a和把手部52b。筒状部52a是成为门拉手52的旋转轴的部分，把手部52b是在对门8进行开闭时被进行转动操作的部分。门拉手52的筒状部52a以覆盖旋转轴轴套51的方式配置。
门拉手52的把手部52b的根部52A被设计为厚度变薄、强度最弱。即，被设计为：在通过过剩的力对门拉手52进行了转动操作的情况下，把手部52b的根部52A容易损坏。
拉手轴套54为与门拉手52一体旋转的构件，配置于门拉手52的筒状部52a的内部。门拉手52通过门拉手固定螺钉52t装配于拉手轴套54的一端部。因此，拉手轴套54将门拉手52与旋转轴53连接。
在拉手轴套54的另一端部形成有大致圆柱状的突出部54a，该突出部54a配置于形成在旋转轴轴套51的顶端面的孔部51a内。孔部51a具有圆形截面，拉手轴套54的突出部54a经由轴承构件55可旋转地配置于旋转轴轴套51的孔部51a内。
旋转轴53为对门闩锁单元80和门8进行固定的构件，在其顶端形成有与旋转轴53一体旋转的T形的门锁定杆53a。门锁定杆53a是在门8为锁定状态的情况下被门闩锁单元80阻止旋转的部分。旋转轴53经由两个轴承构件56可旋转地配置于贯通旋转轴轴套51的贯通孔51b内。
棘轮机构60配置于门拉手52的筒状部52a的内周面与旋转轴53之间，是对将门拉手52的旋转传递给旋转轴53的传递状态和不将门拉手52的旋转传递给旋转轴53的空转状态进行切换的旋转传递切换单元。
图6的(a)是门打开状态的拉手装置50的主视图，图6的(b)是图6(a) 的a－a线的剖视图。图7的(a)是门打开状态的拉手装置50的侧视图，图7的(b)是图7的(a)的a 1－a 1线的剖视图，图7的(c)是图7的(a)的a 2－a 2线的剖视图。
图8的(a)是门闭锁状态的拉手装置50的主视图，图8的(b)是图8的(a)的a－a线的剖视图。图9的(a)是门闭锁状态的拉手装置50的侧视图，图9的(b)是图9(a)的a 1－a 1线的剖视图，图9的(c)是图9的(a)的a 2－a 2线的剖视图。
图10的(a)是门撬开状态的拉手装置50的主视图，图10的(b)是图10(a)的a－a线的剖视图。图11的(a)是门撬开状态的拉手装置50的侧视图，图11(b)是图11(a)的a 1－a 1线的剖视图，图11的(c)是图11(a)的a 2－a 2线的剖视图。
棘轮机构60具有棘轮轴套(ratchet boss)61、三个棘轮弹簧62、以及三个棘轮球63。
棘轮轴套61是用于使门拉手52空转的带槽的圆板。如图7的(b)、图9的(b)以及图11的(b)所示，棘轮轴套61在配置于拉手轴套54的圆形凹部54b内的状态下，通过螺母61t装配于旋转轴53。因此，棘轮轴套61与旋转轴53一体旋转。在棘轮轴套61的外周部，间隔120度地形成有三个槽61a。槽61a沿着棘轮球63的外形形成。
拉手轴套54具有供棘轮轴套61配置的圆形凹部54b，并具有从其大致圆柱状的侧面贯通至圆形凹部54b的内周面的三个贯通孔54c。三个贯通孔54c间隔120度地配置。
三个棘轮弹簧62分别配置于拉手轴套54的三个贯通孔54c内。因此，棘轮弹簧62沿拉手轴套54的径向配置。棘轮弹簧62的径向外侧端部通过紧固件64装配于拉手轴套54的贯通孔54c的径向外侧端部。紧固件64配置于拉手轴套54的贯通孔54c内。
三个棘轮球63分别装配于三个棘轮弹簧62的径向内侧端部。在图7的(b)的门打开状态以及图9的(b)的门闭锁状态下，棘轮球63在配置于拉手轴套54的圆形凹部54b内所配置的棘轮轴套61的外周部的槽61a内的状态下，被棘 轮弹簧62朝向径向内侧推压。棘轮弹簧62是用于将棘轮球63推压至棘轮轴套61的弹簧。
棘轮球63配置于棘轮轴套61的槽61a内的状态是将门拉手52的旋转传递给旋转轴53的传递状态。即，当门拉手52转动时，其旋转经由棘轮弹簧62和棘轮球63传递至棘轮轴套61。因此，装配有棘轮轴套61的旋转轴53与门拉手52的旋转对应地旋转。
与此相对，在门8被锁定的状态下，在棘轮球63配置于棘轮轴套61的槽61a内的状态下，旋转轴53的门锁定杆53a被门闩锁单元80阻止了旋转。在这种状态下，当门拉手52通过过剩的力而从闭锁位置朝向打开位置转动时，在图11的(b)的门撬开状态下，配置于棘轮轴套61的槽61a内的棘轮球63克服棘轮弹簧62的推压力而向径向外侧移动，从棘轮轴套61的槽61a脱离，从而向拉手轴套54的贯通孔54c内移动。
这样，棘轮球63从棘轮轴套61的槽61a脱离的状态是不将门拉手52的旋转传递给旋转轴53的空转状态。即，即使门拉手52转动，其旋转也不会经由棘轮弹簧62和棘轮球63传递至棘轮轴套61。因此，门拉手52相对于棘轮轴套61空转，装配有棘轮轴套61的旋转轴53不会与门拉手52的旋转对应地旋转。
此外，在旋转轴53的长尺寸方向中央部通过螺母65t装配有旋转杆65。旋转杆65是用于限制门拉手52的操作转动范围的构件。
如图7的(c)、图9的(c)以及图11的(c)所示，旋转杆65具有圆形板部65a、以及从圆形板部65a的外周部朝向外侧突出的突出板部65b。圆形板部65a的中心与旋转轴53的中心轴一致。突出板部65b的两端部间隔90度地配置。
旋转杆65配置在形成于旋转轴轴套51的孔部51a的底面的凹部51c内。凹部51c的两端部间隔270度地配置。即，在旋转轴轴套51的孔部51a的底面，在未形成凹部51c的部分配置有阶梯部51d。阶梯部51d的两端部间隔90度地配置。
在拉手轴套54的突出部54a的顶端面，形成有与旋转杆65和旋转轴轴套51的阶梯部51d配置在同一面上的旋转限制部54d。旋转限制部54d的两端部 间隔90度地配置。
由此，通过旋转轴轴套51的凹部51c、拉手轴套54的旋转限制部54d、旋转杆65的形状，门拉手52的操作转动范围被限制在90度的范围内。在本实施方式中，限制为门拉手52不超过可操作范围地转动的转动限制单元N包括旋转轴轴套51的凹部51c(阶梯部51d)、拉手轴套54的旋转限制部54d、以及旋转杆65的突出板部65b。
需要说明的是，当在棘轮球63从棘轮轴套61的槽61a脱离的状态下，转动门拉手52时，门拉手52相对于棘轮轴套61空转地转动，但当门拉手52转动了120度时，从棘轮轴套61的槽61a脱离的棘轮球63配置在比原来的槽61a靠旋转方向下游侧的槽61a内。因此，为了防止从棘轮轴套61的槽61a脱离的棘轮球63配置在比原来的槽61a靠旋转方向下游侧的槽61a内，棘轮轴套61的槽61a的间隔(120度)比门拉手52的可转动范围(90度)大。
此外，在拉手轴套54的突出部54a的顶端面，形成有具有圆形截面的槽部54e。在拉手轴套54的槽部54e内配置有拉手复位用弹簧66。拉手复位用弹簧66是扭转螺旋弹簧，拉手复位用弹簧66是用于使朝向闭锁位置的旋转力作用于门拉手52从而使空转的门拉手52复位至原来的闭锁位置的弹簧。拉手复位用弹簧66的一端装配于拉手轴套54的槽部54e的内周面，其另一端装配在装配于旋转轴53的旋转杆65。
在旋转轴轴套51的下表面与从旋转轴53的外周部突出的外周突部53b之间配置有拉手打开位置保持弹簧68。拉手打开位置保持弹簧68是用于在门8为打开状态时使门拉手52保持在打开位置的弹簧。
需要说明的是，在本实施方式中，将门拉手52与旋转轴53连接的连接机构T包括旋转轴轴套51、拉手轴套54、棘轮机构60(棘轮轴套61、三个棘轮弹簧62以及三个棘轮球63)、旋转杆65、拉手复位用弹簧66、以及拉手打开位置保持弹簧68。
(门打开状态)
基于图6～图7对门拉手52位于打开位置的状态进行说明。
当门拉手52朝向打开位置向左旋转方向转动时，如图7的(c)所示，拉 手轴套54的旋转限制部54d与门拉手52成为一体地向左旋转方向旋转，在形成于旋转轴轴套51的孔部51a的底面的凹部51c内，配置于旋转轴轴套51的阶梯部51d的上端部附近的位置。这时，拉手轴套54的旋转限制部54d的左端部与旋转轴轴套51的阶梯部51d的上端部抵接，由此拉手轴套54的旋转限制部54d向左旋转方向的旋转被限制。因此，门拉手52向左旋转方向的旋转被转动限制单元N限制。
与此相对，如图7的(c)所示，在旋转轴轴套51的凹部51c内，旋转杆65的突出板部65b配置于与旋转轴轴套51的阶梯部51d对置的位置。这时，在旋转杆65的突出板部65b的下端部与旋转轴轴套51的阶梯部51d的下端部之间，形成有90度旋转量的空隙，拉手轴套54的旋转限制部54d向右旋转方向的旋转不被限制。因此，门拉手52向右旋转方向的旋转不被转动限制单元N限制。
在门拉手52位于打开位置的状态下，如图7的(b)所示，棘轮机构60是将门拉手52的旋转传递给旋转轴53的传递状态。具体而言，三个棘轮球63分别为在配置于棘轮轴套61的槽61a内的状态下被棘轮弹簧62朝向径向内侧推压的状态。
即，在对位于打开位置的门拉手52朝向闭锁位置进行了转动操作的情况下，门拉手52从打开位置朝向闭锁位置转动。这时，旋转轴53的门锁定杆53a与门拉手52的旋转对应地旋转。
需要说明的是，在门拉手52位于打开位置的状态下，门拉手52通过拉手打开位置保持弹簧68被保持在打开位置。
(门闭锁状态)
基于图8～图9对门拉手52从打开位置转动至闭锁位置从而门拉手52位于闭锁位置的状态进行说明。
当门拉手52从打开位置朝向闭锁位置向右旋转方向转动时，如图9的(c)所示，拉手轴套54的旋转限制部54d与门拉手52成为一体地向右旋转方向旋转，在旋转轴轴套51的凹部51c内，配置于与旋转轴轴套51的阶梯部51d对置的位置。这时，旋转杆65的突出板部65b的左端部与旋转轴轴套51的阶梯 部51d的下端部抵接，并且拉手轴套54的旋转限制部54d的下端部与旋转杆65的突出板部65b的右端部抵接，由此拉手轴套54的旋转限制部54d向右旋转方向的旋转被限制。因此，门拉手52向右旋转方向的旋转被转动限制单元N限制。
与此相对，如图9的(c)所示，在旋转轴轴套51的凹部51c内，旋转杆65的突出板部65b配置于旋转轴轴套51的阶梯部51d的下端部附近的位置。这时，在拉手轴套54的旋转限制部54d的上端部与旋转轴轴套51的阶梯部51d的上端部之间，形成有90度旋转量的空隙，拉手轴套54的旋转限制部54d向左旋转方向的旋转不被限制。因此，门拉手52向左旋转方向的旋转不被转动限制单元N限制。
在门拉手52位于闭锁位置的状态下，位于旋转轴53的顶端的门锁定杆53a插入门闩锁单元80的装配孔81。在未进行洗衣机1的运转的情况下，门锁定被解除，插入装配孔81的门锁定杆53a的旋转是未被锁定销85阻止的状态，拉手轴套54的旋转限制部54d向左旋转方向的旋转不被门闩锁单元80限制。因此，门拉手52向左旋转方向的旋转不被门闩锁单元80限制。
在门拉手52位于闭锁位置的状态下，如图9的(b)所示，棘轮机构60是将门拉手52的旋转传递给旋转轴53的传递状态。具体而言，三个棘轮球63分别为在配置于棘轮轴套61的槽61a内的状态下被棘轮弹簧62朝向径向内侧推压的状态。
即，在门锁定杆53a未被门闩锁单元80阻止旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，门拉手52从闭锁位置朝向打开位置转动。这时，旋转轴53的门锁定杆53a与门拉手52的旋转对应地旋转。
与此相对，在进行洗衣机1的运转的情况下，门被锁定，插入装配孔81的门锁定杆53a的旋转是被锁定销85阻止的状态，拉手轴套54的旋转限制部54d向左旋转方向的旋转被门闩锁单元80限制。因此，门拉手52向左旋转方向的旋转被门闩锁单元80限制。
即，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，如图9的(b)所示，棘 轮机构60是将门拉手52的旋转传递给旋转轴53的传递状态，但门锁定杆53a的旋转是被锁定销85阻止的状态，门拉手52不从闭锁位置朝向打开位置转动。
(门撬开状态)
基于图10～图11对在门锁定状态下门拉手52从位于闭锁位置的状态被撬开且门拉手52被转动至打开位置的状态进行说明。
在进行洗衣机1的运转的情况下，门被锁定，门拉手52向左旋转方向的旋转被门闩锁单元80限制。在这种状态下对位于闭锁位置的门拉手52朝向打开位置作用想要撬开的过剩的力的情况下，棘轮机构60从将门拉手52的旋转传递给旋转轴53的传递状态切换为不将门拉手52的旋转传递给旋转轴53的空转状态。具体而言，棘轮机构60对门拉手52朝向打开位置作用过剩的力，配置于棘轮轴套61的槽61a内的棘轮球63克服棘轮弹簧62的推压力而向径向外侧移动，当从棘轮轴套61的槽61a脱离时，切换为不经由棘轮弹簧62和棘轮球63将门拉手52的旋转传递给棘轮轴套61的空转状态。
即，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，门拉手52从闭锁位置朝向打开位置转动，但门拉手52相对于旋转轴53空转，旋转轴53不与门拉手52的旋转对应地旋转。因此，插入装配孔81的门锁定杆53a不旋转，所以不会从门锁定杆53a对锁定销85作用过剩的推压力。
然后，进一步地，当门拉手52在空转状态下朝向打开位置向左旋转方向转动时，如图11的(c)所示，拉手轴套54的旋转限制部54d与门拉手52成为一体地向左旋转方向旋转，在旋转轴轴套51的凹部51c内，配置于旋转轴轴套51的阶梯部51d的上端部附近的位置。这时，拉手轴套54的旋转限制部54d的左端部与旋转轴轴套51的阶梯部51d的上端部抵接，由此拉手轴套54的旋转限制部54d向左旋转方向的旋转被限制。因此，门拉手52向左旋转方向的旋转被转动限制单元N限制，会防止从棘轮轴套61的槽61a脱离的棘轮球63配置于比原来的槽61a靠旋转方向下游侧的槽61a内。
这时，在拉手轴套54的旋转限制部54d的右端部与旋转杆65的突出板部65b的右端部之间，形成有90度旋转量的空隙，拉手轴套54的旋转限制部54d 向右旋转方向的旋转不被限制。因此，门拉手52向右旋转方向的旋转不被转动限制单元N限制。因此，当门拉手52向左旋转方向以空转状态转动之后，不再对门拉手52进行操作时，门拉手52通过拉手复位用弹簧66复位至原来的闭锁位置。
本实施方式的洗衣机1具备：门8，设置于箱体2，对与滚筒4的开口4a对置的衣服投入口6进行开闭；门闩锁单元80，禁止门8的打开动作；门拉手52，设置于门8，在对门8进行开闭时被进行转动操作；旋转轴53，与能被门闩锁单元80阻止旋转的门锁定杆53a一体旋转；以及连接机构T，将门拉手52与旋转轴53连接，门拉手52能在从打开门8的打开位置到闭锁门8的闭锁位置为止的可操作范围内转动，在对位于打开位置的门拉手52朝向闭锁位置进行了转动操作的情况下，以及在门锁定杆53a未被门闩锁单元80阻止旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，连接机构T使旋转轴53与门拉手52的旋转对应地旋转，并且，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，连接机构T不使旋转轴53与门拉手52的旋转对应地旋转，并且当不再进行该操作时使门拉手52复位至闭锁位置。
由此，在本实施方式的洗衣机1中，即使在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，也不使旋转轴53与门拉手52的旋转对应地旋转，由此能防止门闩锁单元80损坏。此外，当不再对位于闭锁位置的门拉手52朝向打开位置进行转动操作时，门拉手52自动地复位至闭锁位置，所以门拉手52的操作性提高。
本实施方式的洗衣机1中，连接机构T具有作为使朝向闭锁位置的旋转力作用于门拉手52的复位用弹簧的拉手复位用弹簧66，当在门锁定杆53a被门闩锁单元80阻止了旋转的状态下不再对位于闭锁位置的门拉手52朝向打开位置进行转动操作时，通过拉手复位用弹簧66使门拉手52复位至闭锁位置。
由此，在本实施方式的洗衣机1中，当在门锁定杆53a被门闩锁单元80阻止了旋转的状态下不再对位于闭锁位置的门拉手52朝向打开位置进行转动操作时，能通过拉手复位用弹簧66容易地使门拉手52自动地复位至闭锁位置。
本实施方式的洗衣机1中，连接机构T具有作为配置于门拉手52与旋转轴 53之间的旋转传递切换单元的棘轮机构60，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，棘轮机构60切换为使门拉手52相对于旋转轴53空转。
由此，在本实施方式的洗衣机1中，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，门拉手52相对于旋转轴53空转，所以能容易地切换为不将门拉手52的旋转传递给旋转轴53。
在本实施方式的洗衣机1中，连接机构T具有转动限制单元N，在对门拉手52从打开位置朝向闭锁位置进行了转动操作的情况下，以及在对门拉手52从闭锁位置朝向打开位置进行了转动操作的情况下，转动限制单元N限制为门拉手52不超过可操作范围地转动。
由此，在本实施方式的洗衣机1中，能防止在对门拉手52从打开位置朝向闭锁位置进行了转动操作的情况下，以及在对门拉手52从闭锁位置朝向打开位置进行了转动操作的情况下，门拉手52超过可操作范围地转动。
在本实施方式的洗衣机1中，门拉手52是由树脂形成的长条的门拉手，门拉手52被形成为在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，门拉手52在门闩锁单元80损坏之前损坏。
由此，在本实施方式的洗衣机1中，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，即使在门拉手52因过剩的力而超过可操作范围地被进行了转动操作时，门拉手52的根部52A也会在门闩锁单元80损坏之前损坏，所以能防止门闩锁单元80损坏。此外，与门闩锁单元80发生了损坏的情况下的修理工作相比，在门拉手52发生了损坏的情况下，只要更换发生了损坏的门拉手52即可，修理工作容易。
以上，对本发明的实施方式进行了说明，但各个部分的具体结构不仅局限于上述的实施方式。
例如，在上述实施方式中，将门拉手52与旋转轴53连接的连接机构T包 括旋转轴轴套51、拉手轴套54、棘轮机构60(棘轮轴套61、三个棘轮弹簧62以及三个棘轮球63)、旋转杆65、拉手复位用弹簧66、以及拉手打开位置保持弹簧68，但连接机构T的结构是任意的。
连接机构T可以不具有作为对将门拉手52的旋转传递给旋转轴53的传递状态和不将门拉手52的旋转传递给旋转轴53的空转状态进行切换的旋转传递切换单元的棘轮机构60。即使在连接机构T具有旋转传递切换单元的情况下，旋转传递切换单元也不局限于棘轮机构60。
例如，在上述实施方式的拉手装置50中，假设不具有棘轮机构60，则门拉手52和旋转轴53通过拉手复位用弹簧66连接。这种状态下，在门锁定杆53a被门闩锁单元80阻止了旋转的状态下对位于闭锁位置的门拉手52朝向打开位置进行了转动操作的情况下，门拉手52相对于旋转轴53空转地朝向打开位置转动。这时，门拉手52克服作为扭转螺旋弹簧的拉手复位用弹簧66的朝向闭锁位置的旋转力进行转动，所以，当之后不再对门拉手52朝向打开位置进行转动操作时，门拉手52复位至闭锁位置。即使在这种情况下，门拉手52也被转动限制单元N限制为不超过可操作范围地转动，所以会防止拉手复位用弹簧66损坏。
此外，即使在连接机构T具有作为旋转传递切换单元的棘轮机构60的情况下，棘轮机构60的结构也是任意的。即，在上述实施方式的棘轮机构60中，分别具有三个棘轮轴套61的槽61a、棘轮弹簧62以及棘轮球63，但棘轮轴套61的槽61a、棘轮弹簧62以及棘轮球63的数量也可以是一个、两个，四个以上。
连接机构T可以不具有旋转传递切换单元。需要说明的是，在本发明中，旋转传递切换单元配置于门拉手52与旋转轴53之间是指包括旋转传递切换单元经由其他构件分别与门拉手52和旋转轴53连接的情况。
在上述实施方式中，限制为门拉手52不超过可操作范围地转动的转动限制单元N包括旋转轴轴套51的凹部51c(阶梯部51d)、拉手轴套54的旋转限制部54d、以及旋转杆65的突出板部65b，但转动限制单元N的结构是任意的。
在上述实施方式中，当在门锁定杆53a被门闩锁单元80阻止了旋转的状态 下不再对位于闭锁位置的门拉手52朝向打开位置进行转动操作时，通过作为扭转螺旋弹簧的拉手复位用弹簧66使门拉手52复位至闭锁位置，但用于使门拉手52复位至闭锁位置的结构是任意的。
在上述实施方式中，操作构件是具有长条的把手部52b的门拉手52，但操作构件的形状是任意的。例如，如图12所示，可以是具有对称形状的操作构件153。
在上述实施方式中，门闩锁单元80具有被设置为相对于能阻止门锁定杆53a的旋转的位置进行突出和后退的锁定销85，但门闩锁单元80的结构是任意的。
在上述实施方式中，门拉手52在相对于水平向右斜下方向倾斜45度的闭锁位置与相对于水平向右斜上方向倾斜45度的打开位置之间的90度的可操作范围内被进行转动操作，但不局限于此。门拉手52的闭锁位置可以是相对于水平向右斜下方向倾斜45度的闭锁位置之外的位置。门拉手52的打开位置可以是相对于水平向右斜上方向倾斜45度的打开位置之外的位置。门拉手52的可操作范围可以是90度之外的范围。
在上述实施方式中，作为操作构件的门拉手52被设计为把手部52b的根部52A的厚度变薄，强度最弱。在门拉手52因过剩的力而超过可操作范围地被进行了转动操作时，门拉手52的根部52A在门闩锁单元损坏之前损坏，但门拉手52发生损坏的部分不局限于把手部52b的根部52A。此外，为了使门拉手52的把手部52b的根部52A的强度变弱而使根部52A的厚度变薄，但也可以在把手部52b的根部52A形成缺口，从而使根部52A的强度变弱。
在上述实施方式中，对能实施洗涤过程、漂洗过程以及脱水过程的洗衣机1进行了说明，但本发明也能应用于能实施洗涤过程、漂洗过程以及脱水过程中的至少一个过程的洗衣机，也能应用于能实施洗涤过程、漂洗过程以及脱水过程中的至少一个过程并且能实施烘干过程的洗干一体机。

Claims (5)

  1. 一种洗衣机，其特征在于，具备：
    门，设置于箱体，对与滚筒的开口对置的衣服投入口进行开闭；
    门闩锁单元，用于禁止所述门的打开动作；
    操作构件，设置于所述门，在对所述门进行开闭时被进行转动操作；
    旋转轴，与能被所述门闩锁单元阻止旋转的门锁定杆一体旋转；以及
    连接机构，将所述操作构件与所述旋转轴连接，
    所述操作构件能在从打开所述门的打开位置到闭锁所述门的闭锁位置为止的可操作范围内转动，
    在对位于所述打开位置的所述操作构件朝向所述闭锁位置进行了转动操作的情况下，以及在所述门锁定杆未被所述门闩锁单元阻止旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述连接机构使所述旋转轴与所述操作构件的旋转对应地旋转，
    并且，在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述连接机构不使所述旋转轴与所述操作构件的旋转对应地旋转，并且当不再进行该操作时使所述操作构件复位至所述闭锁位置。
  2. 根据权利要求1所述的洗衣机，其特征在于，
    所述连接机构具有使朝向所述闭锁位置的旋转力作用于所述操作构件的复位用弹簧，
    当在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下不再对位于所述闭锁位置的所述操作构件朝向所述打开位置进行转动操作时，通过所述复位用弹簧使所述操作构件复位至所述闭锁位置。
  3. 根据权利要求1或2所述的洗衣机，其特征在于，
    所述连接机构具有配置于所述操作构件与所述旋转轴之间的旋转传递切换 单元，
    在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述旋转传递切换单元切换为使所述操作构件相对于所述旋转轴空转。
  4. 根据权利要求1～3中任一项所述的洗衣机，其特征在于，
    所述连接机构具有转动限制单元，
    在对所述操作构件从所述打开位置朝向所述闭锁位置进行了转动操作的情况下，以及在对所述操作构件从所述闭锁位置朝向所述打开位置进行了转动操作的情况下，所述转动限制单元限制为所述操作构件不超过可操作范围地转动。
  5. 根据权利要求1～4中任一项所述的洗衣机，其特征在于，
    所述操作构件是由树脂形成的长条的门拉手，所述操作构件被形成为：在所述门锁定杆被所述门闩锁单元阻止了旋转的状态下对位于所述闭锁位置的所述操作构件朝向所述打开位置进行了转动操作的情况下，所述操作构件在所述门闩锁单元损坏之前损坏。
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CN206957366U (zh) * 2017-06-27 2018-02-02 宁波望通锁业有限公司 一种锁的手柄的离合机构
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