JP2018042704A - Drum type washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drum type washing machine which has excellent cleanability of a detergent lid, and in which opening/closing failure due to dimensional variation of the surroundings hardly occurs.SOLUTION: A detergent input part 10 includes a detergent input case into which a detergent is put, and a detergent lid 30 for opening/closing the detergent input case. The detergent lid 30 includes a latch assembly 60 which comes into a lock state by pressing and operating the detergent lid 30, and which cancels the lock state by pressing and operating the detergent lid next. The latch assembly 60 is provided at a tip side of the detergent lid 30 on the opposite side of shaft parts 45c, 51e of the detergent lid 30.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a drum type washing machine.

  Patent Document 1 describes a drum-type washing machine in which a detergent lid is provided on the upper surface side of a housing. This drum type washing machine has a mechanism for opening the detergent lid upward by releasing the lock of the open / close lock knob provided on the front end side (near side) of the detergent lid.

JP 2013-48699 A

  However, in the drum-type washing machine described in Patent Document 1, since the opening / closing lock knob is provided on the detergent lid, a parting line for parts enters the top surface of the detergent lid. For this reason, there is a risk that dust may enter the gaps between the divided portions. In addition, the housing for receiving the open / close lock knob and fixing the detergent lid also requires unevenness in appearance, which makes it difficult to clean. Furthermore, due to the dimensional variation of the entire detergent lid, the open / close lock knob cannot be engaged with the housing and may not be fixed.

  An object of the present invention is to provide a drum-type washing machine that is excellent in cleanability of a detergent lid and is less likely to cause opening and closing problems due to dimensional variations around it.

  The present invention includes a housing, an outer tub elastically supported in the housing, a rotating drum rotatably supported in the outer tub, and a detergent throwing unit for pouring detergent into the upper portion of the housing, The detergent charging unit includes a detergent charging case into which detergent is charged, and a detergent lid that opens and closes the detergent charging case, and the detergent lid is brought into a locked state by pressing the detergent lid. Then, a lock / unlock mechanism that releases the locked state by pressing the detergent lid is provided.

  ADVANTAGE OF THE INVENTION According to this invention, it is excellent in the cleaning property of a detergent lid | cover, and can provide the drum type washing machine with which the malfunction of an opening and shutting by the surrounding dimensional dispersion does not occur easily.

It is an external appearance perspective view which shows the drum type washing machine of this embodiment. It is a longitudinal section showing the drum type washing machine of this embodiment. It is a perspective view which shows a detergent charging case. It is a disassembled perspective view which shows a detergent lid | cover. It is a perspective view which shows the back surface of a detergent lid cover. The packing provided in a detergent lid | cover is shown, (a) is when it sees from the front upper side, (b) is when it sees from the back lower side. It is a longitudinal cross-sectional view when a detergent lid | cover is closed. It is a disassembled perspective view which shows the hinge assembly of a detergent lid | cover. It is a right view of a detergent lid. It is sectional drawing which shows the hinge of a detergent lid | cover, and its periphery. It is a left view of a detergent lid. It is a disassembled perspective view which shows a latch assembly. The latch assembly is shown, (a) is a top view of the rotating disk, (b) a side view of the rotating disk, (c) is a bottom view of the rotating disk, (d) is a sectional view taken along line AA in (a), (E) is a side view of the state which assembled | attached the upper rod and the lower rod. It is a partially cutaway perspective view of a rotating disk. It is a top view which shows the detergent lid base to which a latch assembly is attached. It is a perspective view when the detergent lid | cover which attached the latch assembly is seen from the back side. The operation | movement explanatory drawing from the locked state of a latch assembly to unlocking is shown, (a) is a locked state, (b) is a state in the middle of unlocking, (c) is an unlocked state. The operation | movement explanatory drawing from the unlocking | release of a latch assembly to a locked state is shown, (a) is a lock release state, (b) is a state in the middle of a lock | rock, (c) is a lock state. It is an external appearance perspective view when a detergent lid | cover is closed. It is a top view which shows the state of a hinge assembly when a detergent lid | cover is closed. It is an external appearance perspective view when the detergent cover is pushed. It is a top view which shows the state of a hinge assembly when the detergent lid | cover is pushed. It is an external appearance perspective view when a detergent lid | cover is fully open. It is a top view which shows the state of a hinge assembly when a detergent lid | cover is fully open. The damper mechanism of a hinge assembly is shown, (a) is a state where the detergent lid is fully closed, (b) is a state where the detergent lid is being opened, and (c) is a state where the detergent lid is fully opened.

  Hereinafter, modes for carrying out the present invention (hereinafter referred to as “embodiments”) will be described in detail with reference to the drawings as appropriate.

FIG. 1 is an external perspective view showing the drum type washing machine of the present embodiment.
As shown in FIG. 1, the drum type washing machine 1 includes a door 3 that is opened and closed when the laundry is taken in and out of the front surface of the housing 2. The housing 2 includes a base B made of synthetic resin, a front panel 4, a right side panel 5, a left side panel (not shown), a back panel 6 (see FIG. 2), and an upper panel (top panel) 7. Configured.

  The front panel 4 includes an upper panel 8 on which the door 3 is provided, and an under panel 9 smaller than the upper panel 8. The top panel 7 is provided with a detergent charging part 10 on the left front side, and an operation panel 11 on the right side of the detergent charging part 10.

FIG. 2 is a longitudinal sectional view showing the drum type washing machine of the present embodiment.
As shown in FIG. 2, the drum-type washing machine 1 includes an outer tub 13 that is elastically supported in the housing 2 via a damper 12, and a rotary drum 14 that is rotatably supported in the outer tub 13. I have.

  The outer tub 13 has a cylindrical shape, includes the rotating drum 14 coaxially, and has an open front surface. Further, a rubber bellows 15 is provided at the opening on the front surface of the outer tub 13, and the outer tub 13 is sealed with water by closing the door 3.

  The rotating drum 14 is a cylindrical washing and dewatering tub that is rotatably supported, and has a large number of through holes (not shown) for water flow and ventilation on the outer peripheral wall thereof. An opening 14a is provided for taking in and out things. A fluid balancer 14b that rotates integrally with the rotary drum 14 is provided on the outer peripheral side of the opening 14a. Further, a lifter 14c is provided on the inner peripheral wall of the rotating drum 14 for lifting the laundry during the washing operation and the drying operation. Note that the rotation center axis of the rotary drum 14 is inclined so as to be substantially horizontal or higher on the opening 14a side.

  The drum type washing machine 1 includes a blower unit 16 that functions when performing a drying operation. The blower unit 16 includes a blower 16a and a heater 16b, and is fixed to a reinforcing material (not shown) provided in the housing 2. The blower 16a includes a driving motor (not shown), a fan impeller (not shown), and a fan case 16c. The fan case 16c incorporates a heater 16b and heats air sent from the fan impeller. The heater 16b is composed of a PTC (Positive Temperature Coefficient) heater or the like.

  Further, the downstream side of the blower unit 16 communicates with the inside of the rotary drum 14 via the hot air duct 17. The upstream side of the blower unit 16 is connected to the bottom of the back surface of the outer tub 13 via a drying duct 18 provided between the back panel 6 and the outer tub 13. The hot air ducts 17 and 18 are provided with bellows-like pipes 17 a and 18 a on the way, and are configured to absorb vibration of the outer tub 13.

  For example, in the drying process, when the blower unit 16 is operated while rotating the rotating drum 14 in the forward and reverse directions, the air in the outer tub 13 is sucked into the drying duct 18 and passes through the drying duct 18. Then, it is cooled and dehumidified by a known water-cooled dehumidifying mechanism (not shown). The dehumidified air is heated by the heater 16 b and blown toward the laundry in the rotary drum 14 through the hot air duct 17. In addition, as a drying means, it is not limited to the structure which combined the heater 16b and the water cooling dehumidification mechanism (not shown), You may use a heat pump.

FIG. 3 is a perspective view showing a detergent charging case. FIG. 3 shows a state where the detergent lid 30 is removed.
As shown in FIG. 3, the detergent charging case (detergent box) 20 is a container into which detergents are charged. For example, a powder detergent charging chamber into which powder detergent is charged and a liquid detergent charging into which liquid detergent is charged. It is divided into a chamber and a softener charging chamber into which the softener is charged. In FIG. 3, illustration of the charging chambers of the powder detergent charging chamber, the liquid detergent charging chamber, and the softener charging chamber is omitted.

  The detergent charging case 20 has an edge portion 21 that is formed one step lower than the surface of the top panel 7 of the housing 2. The edge portion 21 is formed so as to surround the periphery of the opening of the concave portion 22 constituting each charging chamber (not shown). The edge portion 21 is entirely located on the same plane, and extends in the left-right direction on the back side (rear side) of the recess 22 and in the left-right direction on the front side (front side) of the recess 22. And a planar portion 21c, 21d extending in the front-rear direction on the left and right sides of the recess 22. Further, the edge portion 21 has a plane portion 21e having a substantially triangular shape in plan view at a corner portion on the right front side in the drawing.

  In addition, bearings 23 and 24 that pivotally support the detergent lid 30 are provided on the left and right ends of the rear side (rear side) of the edge portion 21. The bearing 23 is formed at the right end of the flat surface portion 21 a of the edge portion 21, and the bearing 24 is formed at the left end of the flat surface portion 21 a of the edge portion 21.

  Further, the detergent charging case 20 is formed with a lock hole 25 into which a rotating disk 61 (see FIG. 12), which will be described later, is inserted so as to be able to advance and retreat in a side wall 21f that stands upward with respect to the flat surface portion 21d. The lock hole 25 is elongated in the front-rear direction, and is located on the right side of the flat portion 21e in the figure.

  The drum type washing machine 1 is provided with a water supply unit (not shown) for supplying water to the detergent charging case 20 in the upper panel 7 behind the detergent charging unit 10.

FIG. 4 is an exploded perspective view showing the detergent lid.
The detergent lid 30 includes a detergent lid cover 31, a detergent lid base 32, a detergent lid bottom 33, a packing 34, a hinge assembly 40, a hinge 50, and a latch assembly 60.

  The detergent lid cover 31 is formed of a synthetic resin material, has a shape that can close the entire opening 20a (see FIG. 3) of the detergent charging case 20, and has a flat and gentle shape with no irregularities on the surface. ing. In addition, when the detergent lid cover 31 is fully closed, the surface 31a of the detergent lid cover 31 is such that the upper surface panel 7 (see FIG. 2) and the operation panel 11 (see FIG. 2) of the housing 2. It is configured to be flush with each other. In other words, the surface 31 a of the detergent lid cover 31 is not formed with a shape that divides the detergent lid cover 31.

  The detergent lid base 32 is attached with a detergent lid cover 31 and a detergent lid bottom (detergent lower case) 33 via a packing 34. The detergent lid base 32 is made of a synthetic resin and has a substantially square frame shape, and a substantially rectangular opening (through hole) 32a is formed on the bottom surface. An edge 32b extending along the circumferential direction is formed at the periphery of the opening 32a. The edge portion 32b has a hook shape projecting inward and is formed over the entire periphery of the opening portion 32a.

  The detergent lid base 32 has peripheral walls 32c, 32d, 32e, and 32f extending upward from the outer periphery of the edge portion 32b. The peripheral wall 32c extends in the left-right direction (width direction) behind the opening 32a, and the peripheral wall 32d extends in the left-right direction (width direction) in front of the opening 32a. The peripheral wall 32e extends in the front-rear direction on the left side of the opening 32a, and the peripheral wall 32f extends in the front-rear direction on the right side of the opening 32a.

  Protrusions 32c1, 32c1, 32c1, and 32c1 are formed on the inner wall surface of the peripheral wall 32c at intervals in the circumferential direction. Protrusions 32d1, 32d1, 32d1 (see FIG. 20) are formed on the inner wall surface of the peripheral wall 32d at intervals in the circumferential direction. A protrusion 32e1 is formed on the upper part of the inner wall surface of the peripheral wall 32e. Protrusions 32f1 and 32f1 (see FIG. 20) are formed on the inner wall surface of the peripheral wall 32f at intervals in the circumferential direction.

  In addition, the detergent lid base 32 has a hinge housing portion 32g for housing the hinge assembly 40 and the hinge 50 integrally formed with resin at the rear (back side) of the peripheral wall 32c.

  The hinge housing portion 32g includes a peripheral wall 32c, a side wall 32h arranged in parallel to the peripheral wall 32c at a predetermined interval rearward from the peripheral wall 32c, and a bottom wall 32i that connects the lower ends of the peripheral wall 32c and the side wall 32h (see FIG. 7). ).

  Further, the hinge accommodating portion 32g includes an end wall 32j that connects one end in the longitudinal direction (left and right direction) of the side wall 32h and the peripheral wall 32c, and an end wall that connects the other end in the longitudinal direction (left and right direction) of the side wall 32h and the peripheral wall 32c. 32k. Accordingly, the hinge accommodating portion 32g has a concave shape whose upper surface is opened by the peripheral wall 32c, the side wall 32h, the bottom wall 32i, and the end walls 32j and 32k. A bearing 32m that pivotally supports the hinge 50 is formed on the end wall 32j, and a bearing 32n that pivotally supports the hinge assembly 40 is formed on the end wall 32k.

  Claw portions 32h1, 32h1, 32h1, and 32h1 for hooking and fixing the detergent lid cover 31 are formed on the upper portion of the inner wall surface of the side wall 32h at intervals in the circumferential direction (left-right direction).

  In addition, the detergent lid base 32 has a latch assembly installation portion 32q in which the latch assembly 60 is installed at a corner portion formed by the peripheral wall 32d and the peripheral wall 32f.

  The peripheral wall 32f of the detergent lid base 32 is formed with a notch 32s on the right side of the latch assembly 60. The cutout holes 32s are formed at positions corresponding to the lock holes 25 (see FIG. 3) (positions that overlap each other).

  Further, the detergent lid base 32 is formed with a flange-shaped extending portion 32p protruding forward from the upper end of the peripheral wall 32d. Claw portions 32p1, 32p1, 32p1 for hooking and fixing the detergent lid cover 31 are formed in the extension portion 32p with a space in the left-right direction.

  The detergent lid bottom (detergent lid bottom case) 33 has a shape along the detergent lid base 32 and can be accommodated from above the detergent lid base 32. In FIG. 4, the lower detergent lid 33 is illustrated below the detergent lid base 32, but actually, the lower detergent lid 33 is inserted and assembled from above the detergent lid base 32.

  The lower detergent lid 33 has a peripheral wall 33c disposed along the inner surface of the peripheral wall 32c and a peripheral wall 33d disposed along the inner surface of the peripheral wall 32d. The detergent lid 33 has a peripheral wall 33e disposed along the inner surface of the peripheral wall 32e and a peripheral wall 33f disposed along the inner surface of the peripheral wall 32f. Thus, the detergent lid lower part 33 is inserted and attached from the upper side of the detergent lid base 32. The detergent lid lower 33 has a bottom wall 33g, and has a projecting surface portion 33h that protrudes downward so that the bottom wall 33g fits into the opening 32a of the detergent lid base 32. The peripheral edge of the bottom wall 33g is formed in a substantially square frame shape as a pressing portion 33g1 for pressing the packing 34.

  The peripheral wall 33c is formed with a locking portion 33c1 to which the above-described protrusion 32c1 is locked with a gap in the circumferential direction (left-right direction in the drawing).

  The peripheral wall 33d is formed with a locking portion 33d1 for locking the above-described protrusion 32d1 (see FIG. 20) with an interval in the circumferential direction (left-right direction in the drawing). Further, a latching portion 33d2 for hooking and fixing the detergent lid cover 31 is formed on the inner wall surface of the circumferential wall 33d with a gap in the circumferential direction (left-right direction in the drawing).

  The peripheral wall 33e is formed with a locking portion 33e1 (see FIG. 20) where the protruding portion 32e1 is locked. Moreover, the protrusion part 33e2 is formed in the inner wall surface of the surrounding wall 33e at intervals in the circumferential direction.

  On the peripheral wall 33f, locking portions 33f1 to which the above-described protrusions 32f1 (see FIG. 20) are locked are formed at intervals in the circumferential direction (the front-rear direction in the drawing). Further, a protrusion 33f2 (see FIG. 20) is formed on the inner wall surface of the peripheral wall 33f.

FIG. 5 is a perspective view of the detergent lid cover as viewed from the back side.
As shown in FIG. 5, the back surface of the detergent lid cover 31 is formed with a locking portion 31 b along which the claw portion 32 h 1 (see FIG. 4) is locked along the rear (rear) edge. Has been. Further, on the back surface of the detergent lid cover 31, a locking portion 31 c is formed along the front (front) edge portion to which the claw portion 32 p 1 (see FIG. 4) is locked.

  Further, on the back surface of the detergent lid cover 31, locking claws 31 d (four in this embodiment) are formed on the inner side of the locking portion 31 c along the alignment direction of the locking portions 31 c. The locking claw 31d is formed so as to stand up from the back surface of the detergent lid cover 31, and the claw portion 31d1 is formed so as to face outward at the tip. Further, a locking claw 31e is formed on the right edge of the back surface of the detergent lid cover 31. The locking claw 31e is formed upright from the back surface of the detergent lid cover 31 similarly to the locking claw 31d, and is formed so that the claw portion 31e1 faces the outside at the tip. Further, on the back surface of the detergent lid cover 31, locking claws 31f and 31f are formed along the left edge. This locking claw 31f is formed upright from the back surface of the detergent lid cover 31 similarly to the locking claw 31d, and is formed so that the claw portion 31f1 faces the outside at the tip.

  The locking claw 31d is hooked and fixed to the hooking portion 33d2 (see FIG. 4). The locking claw 31e is hooked and fixed on the protrusion 33f2. The locking claw 31f is hooked and fixed to the protrusion 33f2. Thereby, the detergent lid cover 31 is firmly fixed to the detergent lid base 32 and the detergent lid bottom 33.

  Further, on the back surface of the detergent lid cover 31, a spring support portion 31g that supports one end of a coil spring 64 (see FIG. 4) attached to the latch assembly 60 (see FIG. 4) is formed to protrude.

FIG. 6 shows the packing provided on the detergent lid, where (a) is viewed from the front upper side, and (b) is viewed from the rear lower side.
As shown in FIGS. 6A and 6B, the packing 34 seals (water seals) the gap between the detergent charging case 20 (see FIG. 3) and the detergent lid 30 when the detergent lid 30 is closed. It is made of an elastic material such as silicon. Further, the packing 34 has a shape along the pressing portion 33g1 (see FIG. 4) of the detergent lid 33. The packing 34 has a bellows shape that expands and contracts in the vertical direction (the pressing direction of the detergent lid 30), and has an upper end 32b (see FIG. 4) of the detergent lid base 32 and a pressing portion 33g1 (see FIG. 4) of the detergent lid lower 33. 4), the clamped portion 34a is clamped. The sandwiched portion 34a is formed to be thicker than the lower side of the packing 34 (see FIG. 7). As a result, the packing 34 can be stably held without being detached by the detergent lid base 32 and the detergent lid bottom 33.

  Moreover, the packing 34 has the contact | adherence part 34b closely_contact | adhered to the edge part 21 (plane part 21a, 21b, 21c, 21d) of the detergent charging case 20 in a lower end. In the packing 34, a plurality of through holes 34c are formed at positions on the back side with a gap in the left-right direction (width direction). The through hole 34c prevents the packing 34 from adsorbing to the edge 21 when the detergent lid 30 is closed, and can prevent the opening operation of the detergent lid 30 from being impaired.

  Note that the position of the through hole 34c is not limited to the position shown in FIGS. 6A and 6B, and any position that can prevent the packing 34 from being adsorbed is shown in FIG. 6A. It may be on the left side and can be selected as appropriate. Further, the shape of the through hole 34c is not limited to an elongated shape, and may be other shapes such as a circle and a triangle as long as the shape can prevent the packing 34 from being adsorbed. Further, the number of through holes 34c is not limited to three, and may be two or less and four or more as long as the adsorption of the packing 34 can be prevented.

  Further, the packing 34 has an escape portion 34d for positioning the above-described latch assembly installation portion 32q (see FIG. 4) outside the packing 34.

FIG. 7 is a longitudinal sectional view when the detergent lid is closed.
As shown in FIG. 7, in the detergent charging part 10, when the detergent charging case 20 is closed by the detergent lid 30, the packing 34 is in close contact with the edge 21 of the detergent charging case 20 in a state where the packing 34 is contracted in the vertical direction. Thereby, it is possible to prevent water or the like supplied to the detergent charging case 20 during operation from leaking outside through the gap between the detergent lid 30 and the detergent charging case 20.

  Further, when the detergent lid 30 is closed (when fully closed), the surface 31a of the detergent lid 30 is formed flush with the surface 7a of the top panel 7 of the drum type washing machine 1, and therefore the detergent lid 30 The surface 31a of the (detergent lid cover 31) is a surface without unevenness. Therefore, the conventional split shape (a dent formed when connecting parts) is not formed in the detergent lid 30. Therefore, the cleaning property of the surface 31a of the detergent lid 30 is improved, and since there is no dividing line (dividing shape), it is possible to prevent dust and the like from accumulating.

FIG. 8 is an exploded perspective view showing the hinge assembly of the detergent lid.
As shown in FIG. 8, the hinge assembly 40 is configured by combining a spring case 41, a hinge spring 42, a damper cover 43, a damper 44, a damper case 45, and a hinge fitting 46.

  The spring case 41 is formed of a synthetic resin or the like, and has an approximately quadrangular prism shape whose outer shape is elongated in the left-right direction (width direction). A spring accommodating portion 41 a that accommodates the hinge spring 42 is formed on one side of the spring case 41. The spring accommodating portion 41a is configured such that the hinge spring 42 is inserted from the side surface of one end in the longitudinal direction (left-right direction). A screw hole 41 b for fixing the spring case 41 to the hinge metal fitting 46 is formed on the other side of the spring case 41.

  In addition, guide holes 41 c and 41 c for guiding the damper cover 43 in the axial direction (the left-right direction in the drawing) are formed on both side surfaces of the spring case 41.

  The hinge spring 42 is constituted by a coil spring and is accommodated in the spring case 41. Further, the hinge spring 42 is externally fitted and supported by a columnar protrusion (not shown) formed in the spring accommodating portion 41a.

  The damper cover 43 is formed of a synthetic resin or the like, and has a columnar base portion 43 a that is larger than the outer diameter of the hinge spring 42. On the side of the hinge spring 42 of the base portion 43a, a cylindrical spring insertion portion 43b inserted into the hinge spring 42 is formed extending in the axial direction.

  Further, on the side of the base portion 43a opposite to the spring insertion portion 43b, a cam portion 43c in which a cylinder is cut out in a spiral shape is formed. The cam portion 43c is configured by alternately forming linear portions 43c1 extending in the axial direction and helical portions 43c2 extending spirally with respect to the axial direction in the circumferential direction. In the present embodiment, three sets of linear portions 43c1 and helical portions 43c2 are formed.

  A protrusion 43a1 that is guided by the guide hole 41c is formed on the side surface of the base portion 43a. In FIG. 8, only one is shown. The base portion 43a is formed with a guide portion 43a2 that is guided by a hinge fitting 46 described later.

  The damper 44 is for opening the detergent lid 30 while attenuating it, and includes a cylinder part 44a filled with silicon oil and the like, and a rod part 44b inserted from the cylinder part 44a to the damper cover 43 side so as to freely advance and retract. have. The cylinder portion 44a has a cylindrical shape extending in the axial direction, and a receiving portion 44c that receives the damper cover 43 is formed at the tip of the rod portion 44b.

  The damper case 45 is formed of a synthetic resin or the like, and has a base portion 45 a having the same diameter as the base portion 43 a of the damper cover 43. A cam portion 45b is formed on one side in the axial direction of the base portion 45a. The cam portion 45b is formed by cutting a cylinder that can be fitted into the cam portion 43c into a spiral shape. The cam portion 45b has a linear portion 45b1 extending linearly in the axial direction and a helical portion 45b2 extending spirally in the axial direction and sliding with the helical portion 43c2.

  The hinge fitting 46 is made of a metal material such as iron and has a base portion 46a on which the spring case 41 is placed. The base portion 46a has a guide portion 46b that is elongated in the axial direction and rises upward from both ends in the short direction.

  Further, a screw fixing portion 46c is formed at one end of the base portion 46a in the axial direction. The screw fixing portion 46c has an extending portion 46c1 that extends upward in the vertical direction at one end of the base portion 46a and extends in the horizontal direction on one end side in the axial direction and is formed in an L shape. Further, a screw hole 46c2 that is screwed together with the spring case 41 is formed in the horizontal portion of the extending portion 46c1.

  A shaft insertion portion 46d through which the shaft portion 45c of the damper case 45 is inserted is formed at the other end in the axial direction of the base portion 46a so as to extend upward in the vertical direction from the base portion 46a.

  The hinge metal fitting 46 holds the assembly of the spring case 41, the hinge spring 42, the damper cover 43, the damper 44 and the damper case 45. That is, the hinge spring 42 is inserted in a compressed state into the spring accommodating portion 41 a of the spring case 41, and a part of the damper cover 43 (base portion 43 a and spring inserting portion 43 b) is accommodated in the spring accommodating portion 41 a of the spring case 41. Then, the damper 44 is compressed to a state where it is fitted to the hinge metal fitting 46 while being sandwiched between the damper cover 43 and the damper case 45. At this time, the shaft part 45c of the damper case 45 is attached to the hinge metal part 46 so as to be inserted into the hole (not indicated) of the shaft insertion part 46d of the hinge metal part 46. Then, the screw holes 41b and 46c2 are aligned vertically and screwed together using a screw 47 (see FIG. 20), and further screwed into a screw boss (not shown) formed in the hinge housing portion 32g (see FIG. 4). Thereby, the hinge assembly 40 is fixed to a predetermined position of the detergent lid base 32.

  The hinge assembly 40 assembled in this way is arranged on the right side of the hinge accommodating portion 32g (see FIG. 4). That is, in the hinge assembly 40, the shaft portion 45 c of the damper case 45 is inserted into the bearing 32 n of the detergent lid base 32. Further, the shaft portion 45c protruding outward from the bearing 32n of the detergent lid base 32 is inserted into a bearing 23 (see FIG. 3) formed in the detergent charging case 20. The hole of the bearing 23 through which the shaft portion 45c is inserted has a quadrangular shape into which the shaft portion 45c is fitted, so that the shaft portion 45c (damper case 45) does not rotate.

FIG. 9 is a right side view of the detergent lid. FIG. 9 shows a state where the detergent lid cover 31 and the latch assembly 60 are removed from the detergent lid 30.
As shown in FIG. 9, a recess 32f3 that is recessed inward in the axial direction is formed at the rear end of the peripheral wall 32f (when the detergent lid 30 is closed). The bearing 23 (see FIG. 3) is disposed in the recess 32f3.

  A circular through hole 32f2 into which the shaft portion 45c is inserted is formed in the recess portion 32f3. The shaft 45c has a quadrangular shape (square) when viewed from the axial direction. The shape of the shaft portion 45c is not limited to a square when viewed from the axial direction (sectional view), and other shapes such as a D shape in cross section can be used as long as the shaft portion 45c can be made non-rotatable. It may be.

  Further, the cutout hole 32s formed in the peripheral wall 32f has a shape along the rotary disk 61 (see FIG. 12) of the latch assembly 60 described later. That is, the cutout hole 32s is formed in a substantially trapezoidal shape, the upper side portion 32s1 is formed longer than the lower side portion 32s2, and the width is narrowed by the inclined portions 32s3 and 32s4 from the upper side portion 32s1 toward the lower side portion 32s2. .

FIG. 10 is a cross-sectional view showing the hinge of the detergent lid and its periphery. FIG. 10 is a cross-sectional view schematically showing a state in which the hinge 50 is attached to the hinge accommodating portion 32g.
As shown in FIG. 10, the hinge 50 has a main body portion 51 formed in a substantially U shape in the cross-sectional view shown in the figure, and is accommodated in the hinge accommodating portion 32 g with the U shape of the main body portion 51 turned sideways. ing. That is, the main body 51 includes a linear plate portion 51a positioned on the upper side (opening side of the hinge accommodating portion 32g), a linear plate portion 51b positioned on the bottom wall 32i side of the hinge accommodating portion 32g, and a plate portion. 51a and a curved portion 51c that connects the ends of the plate portion 51b. Thereby, the plate part 51b of the main body part 51 can be bent and deformed in the vertical direction in the figure.

  Further, the hinge 50 is formed with a bent portion 51d in which the tip of the plate portion 51a is formed longer than the tip of the plate portion 51b and is bent from the tip of the plate portion 51a toward the bottom wall 32i. A cylindrical shaft portion 51e is formed on the outer surface of the bent portion 51d. This shaft portion 51e is inserted into and supported by the through hole 32e2 of the bearing 32m. The hinge 50 is held by ribs 32g1 and 32g2 (see FIG. 20) so as not to move into the hinge housing portion 32g. The hinge 50 can be moved in the horizontal direction in the figure. Although not shown, the shaft portion 51e is rotatably supported by a bearing 24 (see FIG. 3) formed in the detergent charging case 20 (see FIG. 3). As a result, the detergent lid 30 is rotatably supported by the detergent charging case 20.

  Further, the hinge 50 is formed with a bent portion 51f formed by bending from the tip of the plate portion 51b toward the bottom wall 32i. The tip of the bent portion 51f is disposed so as to be exposed from the opening 32i1 formed in the bottom wall 32i.

  Further, a projection 51g having a right triangle shape in cross section is formed on the surface of the plate portion 51b facing the bottom wall 32i. The protrusion 51g has a surface 51g1 extending perpendicularly to the bottom wall 32i and an inclined surface 51g2 extending inclined from the lower end (tip) of the surface 51g1 toward the bent portion 51f.

  On the other hand, a projection 32t is formed on the bottom wall 32i on the surface facing the projection 51g. The protrusion 32t extends perpendicularly to the bottom wall 32i and is disposed to face the surface 51g1, and is inclined from the upper end (tip) of the surface 32t1 to the side opposite to the bent portion 51f. And an inclined surface 32t2.

FIG. 11 is a left side view of the detergent lid.
As shown in FIG. 11, a recess 32 e 3 that is recessed in the axial direction is formed at the rear end (rotation shaft side) of the peripheral wall 32 e that is the left side surface of the detergent lid base 32. A bearing 24 (see FIG. 3) formed in the detergent charging case 20 is disposed in the recess 32e3.

  Further, in the hollow portion 32e1, a bearing 32m is formed at a deep position in the axial direction, and a circular through hole 32e2 is formed in the bearing 32m. Although not shown, the shaft portion 51e (see FIG. 10) of the hinge 50 protrudes from the through hole 32e2. The shaft portion 51 e has a circular shape when viewed from the axial direction, and is configured to rotate together with the rotation of the detergent lid 30.

  The state shown in FIG. 10 is a state in which the hinge 50 is held by the hinge accommodating portion 32g, and the tip (lower end) of the bent portion 51f protrudes (or is exposed) from the opening 32i1. The hinge 50 is disposed so that the surface 51g1 of the protrusion 51g and the surface 32t1 of the protrusion 32t are opposed to each other (actually, the surface 51g1 and the surface 32t1 are in contact), and the shaft portion 51e of the hinge 50 is the bearing 32m. It is designed not to get out of it.

  In the state shown in FIG. 10, the engagement state between the protrusion 51g and the protrusion 32t is released by pushing the tip (lower end) of the bent part 51f into the opening 32i1 (X direction in FIG. 10). Then, by sliding the hinge 50 in the illustrated right direction (Y direction in FIG. 10) with the bending portion 51f pushed in, the shaft portion 51e comes out of the bearing 24 (see FIG. 3) of the detergent charging case 20. After the shaft portion 51e is removed from the bearing 24, the detergent cover 30 can be removed from the detergent charging case 20 by pulling out the opposite shaft portion 45c (see FIG. 8) from the bearing 23 (see FIG. 3). The lid 30 can be cleaned.

  In addition, when the removed detergent lid 30 is attached to the detergent charging case 20, the right shaft 45c (see FIG. 8) is inserted into the bearing 23 (see FIG. 3), and the shaft 51e and the bearing 24 (see FIG. 3). ) Is positioned to face each other. Then, by sliding the hinge 50 toward the bearing 24, the inclined surface 51g2 of the protrusion 51g slides while sliding on the inclined surface 32t2 of the protrusion 32t, and the shaft portion 51e moves toward the bearing 24. When the shaft portion 51e is pivotally supported by the bearing 24, the projection 51g gets over the projection 32t and is deformed by the elastic restoring force of the plate portion 51a, and the projection 51g and the projection 32t are engaged. Thereby, the hinge 50 is locked in the hinge accommodating part 32g.

FIG. 12 is an exploded perspective view showing the latch assembly.
As shown in FIG. 12, the latch assembly 60 (lock / unlock mechanism) is configured by combining a rotating disk 61, an upper rod 62 and a lower rod 63, and a coil spring 64 (see FIG. 4).

  The rotating disk 61 includes a cylindrical portion 61a whose upper and lower sides in the drawing are axial directions, and a substantially triangular rotating disk 61b that protrudes radially from the cylindrical portion 61a. The upper portion of the cylindrical portion 61a is formed to have a smaller diameter than the inner diameter, and an upper opening 61a1 penetrating in the axial direction is formed. A coil spring 64 (see FIG. 4) described later is inserted into the upper opening 61a1.

  The upper rod 62 includes a cylindrical portion 62a having a smaller diameter than the cylindrical portion 61a extending in the axial direction, and an upper guide member 62b formed integrally with the upper portion of the cylindrical portion 62a. The upper rod 62 has a connecting portion 62 c that protrudes downward in the axial direction from the cylindrical portion 62 a and is connected to the lower rod 63.

  The upper guide member 62b is formed with protruding portions 62b1 that protrude radially outward from the outer peripheral wall surface of the cylindrical portion 61a in the circumferential direction. A trough 62b2 formed by two inclined surfaces 62b3 and 62b4 is formed between the protrusion 62b1 and the protrusion 62b1.

  The upper guide member 62b has a notch groove 62b5 penetrating in the vertical direction. The cutout grooves 62b5 are formed at equal intervals of 120 degrees. That is, the two protrusions 62b1 are configured to be positioned between the notch groove 62b5 and the notch groove 62b5 that are adjacent in the circumferential direction.

  The connecting part 62c has a substantially columnar protruding part 62c1 extending downward in the axial direction from the lower surface of the cylindrical part 62a. The protrusion 62c1 has leg portions 62c2 and 62c2 formed in a bifurcated shape. A claw 62c3 is formed on each leg portion 62c2 so as to face outward in opposite directions. Thereby, in the connection part 62c, the leg parts 62c2 and 62c2 can be bent and deformed in a direction approaching each other.

  The lower rod 63 includes a cylindrical portion 63a having the same diameter as the cylindrical portion 62a extending in the axial direction, and a lower guide member 63c integrally formed on the upper portion of the cylindrical portion 63a.

  The cylindrical portion 63a is formed with a connecting hole 63b on the upper surface in the axial direction to which the connecting portion 62c is inserted and connected. The connection hole 63b has a substantially racetrack shape in a plan view, and is formed in a straight line and is opposed to a pair of straight line parts 63b1 and 63b1, and curved lines 63b2 and 63b2 that are formed in a curved line and are opposed to each other. ,have. By inserting the connecting portion 62c described above into the connecting hole 63b, the leg portions 62c2 bend in a direction approaching each other, and the connecting portion 62c can be inserted into the connecting hole 63b. When the claw 62c3 gets over the straight portion 63b1 and enters the cylindrical portion 63a, each leg portion 62c2 is elastically restored in the cylindrical portion 63a, and the lower surface of the cylindrical portion 62a and the upper surface of the cylindrical portion 63a are in contact with each other. Connected.

  The lower guide member 63c is formed with protrusions 63c1 protruding in the radial direction from the outer peripheral wall surface of the cylindrical portion 63a in the circumferential direction. Between the protrusion 63c1 and the protrusion 63c1, a valley 63c2 is formed by two inclined surfaces 63c3 and 63c4. Further, a notch groove 63d penetrating in the axial direction is formed at the bottom of each valley portion 63c2.

13A and 13B show a latch assembly, in which FIG. 13A is a top view of the rotating disk, FIG. 13B is a side view of the rotating disk, FIG. 13C is a bottom view of the rotating disk, and FIG. Line sectional drawing, (e) is a side view of the state which assembled | attached the upper rod and the lower rod.
As shown in FIG. 13A, the rotating disk 61b has a substantially equilateral triangular shape when viewed from above in the axial direction. Further, each corner of the rotating disk 61b is a chamfered portion 61b1 from which a sharp portion is removed. Thus, by forming the chamfered portion 61b1, the rotation locus of the rotary disk 61b can be reduced, and the latch assembly 60 can be configured compactly.

  As shown in FIG. 13B, the rotating disk 61b has a thin disk-shaped disk part 61c and a cylindrical part 61d extending in the axial direction from the lower surface of the disk part 61c and having a larger diameter than the cylindrical part 61a. doing. The rotating disc 61b has a side surface portion 61e that extends downward from the outer peripheral edge of the disc portion 61c. As shown in FIG. 13B, the side surface 61e is formed on one side (the left side in the drawing) with respect to the center in the axial direction when one side of the rotating disk 61b is viewed from the front. The side surface portion 61e extends downward to the same height as the cylindrical portion 61d. Further, the side surface portion 61e is formed with a taper 61f from the lower end toward the upper end.

  As shown in FIG. 13C, the rotating disk 61b has the above-described side surface portions 61e provided on the respective sides of the triangle. A circular lower opening 61g having a diameter larger than that of the upper opening 61a1 is formed on the lower surface of the cylindrical portion 61a.

  In addition, three guide protrusions 61h are formed at equal intervals (every 120 degrees) in the circumferential direction on the inner peripheral wall surface of the cylindrical portion 61a. The guide protrusion 61h is formed at a position P (see FIG. 13B) that substantially opposes the center in the width direction of one side of the disk portion 61c.

  As shown in FIG. 13D, the guide protrusion 61h is formed at substantially the same position as the height position of the rotary disk 61b. The guide protrusion 61h has a width that allows the notch groove 62b5 (see FIG. 12) of the upper rod 62 to pass therethrough.

  FIG. 13E shows a state in which the upper rod 62 and the lower rod 63 are connected. A groove 63a1 extending along the axial direction is formed in the cylindrical portion 63a of the lower rod 63. The groove 63a1 is formed downward from the lower surface of the lower guide member 63c. Further, a locking hole 63a2 penetrating the inside is formed at the upper end of the groove 63a1. When the upper rod 62 and the lower rod 63 are connected, the claw 62c3 of the upper rod 62 protrudes into the locking hole 63a2, so that the upper rod 62 and the lower rod 63 are locked so as not to drop off from each other.

  Further, when the upper rod 62 and the lower rod 63 are connected, the upper guide member 62b and the lower guide member 63c are arranged in a state of being separated in the axial direction. The guide protrusion 61h moves up and down between the upper guide member 62b and the lower guide member 63c, so that the rotary disk 61 rotates.

FIG. 14 is a partially cutaway perspective view of the rotating disk.
As shown in FIG. 14, the guide protrusion 61h has a trapezoidal shape when viewed from the axial center side, and has a vertical surface portion 61h1 extending in the vertical direction and a vertical surface formed shorter in the vertical direction than the vertical surface portion 61h1. A surface portion 61h2, an inclined surface portion 61h3 extending from the upper end portion of the vertical surface portion 61h1 toward the upper end portion of the vertical surface portion 61h2, and an inclined surface portion 61h4 extending from the lower end portion of the vertical surface portion 61h1 toward the lower end portion of the vertical surface portion 61h2. doing. The vertical surface portions 61h1 and 61h2 and the inclined surface portions 61h3 and 61h4 are formed not in the radial center but in the circumferential direction. Accordingly, the inclined surface portions 61h3 and 61h4 can be disposed to face the inclined surfaces 62b3 and 62b4 of the upper guide member 62b and the inclined surfaces 63c3 and 63c4 of the lower guide member 63c. In FIG. 14, only one guide protrusion 61h is shown, but the other two guide protrusions 61h are also formed in the same shape and in the same direction.

  In the latch assembly 60 configured as described above, after the upper rod 62 and the lower rod 63 are assembled as shown in FIG. 13 (e) to form a rod assembly (hereinafter referred to as reference numeral 65), the rotating disc The rod assembly 65 is inserted from the lower opening 61g on the lower side of 61. At this time, three guide protrusions 61h are formed in the cylindrical portion 61a of the rotary disk 61. By aligning the positions of the three notch grooves 62b5 and the three guide protrusions 61h in the axial direction, the upper guide The member 62b can be moved above the guide protrusion 61h.

FIG. 15 is a plan view showing the detergent lid base to which the latch assembly is attached. FIG. 15 shows a state where the detergent lid base 33 is attached to the detergent lid base 32.
As shown in FIG. 15, a latch assembly setting portion 32 q to which the above-described latch assembly 60 is attached is provided at a corner portion on the right front side of the detergent lid base 32. The latch assembly installation portion 32q is formed with a flat portion 32r formed in a triangular shape in plan view.

  A circular through hole 32u is formed in the flat portion 32r, and a pair of protrusions 32w are formed so as to face the wall surface of the through hole 32u. A fitting rib 32x is formed around the through hole 32u so as to fit the cylindrical portion 61a of the latch assembly 60 in a substantially concentric shape. As a result, it is possible to prevent an unreasonable force from acting on the rod assembly 65 having a thin shape and causing a malfunction in the operation of the rod assembly 65.

  The detergent lid 33 is formed with a peripheral wall 33i that avoids (escapes from) contact of the latch assembly 60 when the latch assembly 60 rotates. The peripheral wall 33i is formed in an arc shape so that the concave surface faces the latch assembly installation portion 32q.

FIG. 16 is a perspective view of the detergent lid with the latch assembly attached as viewed from the back side.
As shown in FIG. 16, the lower rod 63 of the latch assembly 60 is inserted into the through hole 32u. At this time, the protrusions 32w and 32w formed in the through hole 32u are fitted into the grooves 63a1 and 63a1 formed in the lower rod 63 so that the lower rod 63 does not rotate on the latch assembly installation portion 32q. It has become. That is, the latch assembly 60 is configured such that the rotating disk 61 rotates.

  FIGS. 17A and 17B are operation explanatory views from the locked state to the unlocked state of the latch assembly, where FIG. 17A shows the locked state, FIG. 17B shows the state in the middle of unlocking, and FIG. 17C shows the unlocked state. 17A, 17B, and 17C, the left diagram shows the positional relationship between the rotary disk 61 and the top panel 7, and the central diagram shows the rod assembly 65 of the latch assembly 60. The positional relationship with the guide protrusion 61h of the rotating disk 61 is shown, and the right figure shows a simplified state by developing the central figure.

  First, after the latch assembly 60 is installed in the latch assembly installation portion 32q of the detergent lid base 32, one end (lower end) of the coil spring 64 (see FIG. 4) is inserted into the upper opening 61a1 of the rotating disk 61. The other end (upper end) of the coil spring 64 is attached so as to be fitted on a spring support portion 31g (see FIG. 5) formed on the back surface of the detergent lid cover 31. Accordingly, the latch assembly 60 is held in the detergent lid 30 while the rod assembly 65 is always pressed.

  As shown in the left diagram of FIG. 17A, when the detergent lid 30 is closed (locked), one corner C1 of the latch assembly 60 is formed in the cutout hole 32s of the detergent lid 30 (see FIG. 4). ) And is inserted into the lock hole 25 (see FIG. 3) of the top panel 7. At this time, as shown in the central view of FIG. 17A, the latch assembly 60 is separated from the flat portion 21e of the edge portion 21 formed in the detergent charging case 20 (see FIG. 3). The rod assembly 65 is pressed by a coil spring 64 (see FIG. 4), and the guide protrusion 61h is in contact with the upper guide member 62b.

  Further, as shown in the right diagram of FIG. 17A, the rod assembly 65 is formed such that a trough 62b2 of the upper rod 62 and a trough 63c2 of the lower rod 63 are out of phase in the circumferential direction. . That is, the inclined surface 63c3 of the valley portion 63c2 is positioned below the bottom (point P1) of the valley portion 62b2, and the inclined surface 62b3 of the valley portion 62b2 is positioned above the bottom (point P2) of the valley portion 63c2. doing.

  As shown in the right diagram of FIG. 17A, when the detergent lid 30 is closed (locked), the inclined surface portion 61h3 of the guide protrusion 61h is in contact with the inclined surface 62b3. At this time, the rod assembly 65 is pressed downward by the coil spring 64 (see FIG. 4), but the rod projection 65 is further lowered by the guide protrusion 61h coming into contact with the bottom (point P1) of the valley portion 62b2. Is restricted from moving to.

  In the state shown in FIG. 17A, when the detergent lid 30 is pressed, the lower end (tip) of the lower rod 63 comes into contact with the flat surface portion 21e as shown in the central view of FIG. 17B. The rod assembly 65 is pushed upward in the vertical direction while receiving the biasing force of the coil spring 64 (see FIG. 4). At this time, as shown in the right view of FIG. 17B, the guide protrusion 61h comes into contact with the inclined surface 63c3 of the valley portion 63c2, and thereafter, the inclined surface portion 61h4 of the guide protrusion 61h slides on the inclined surface 63c3 of the lower rod 63. Slide down while moving. When the inclined surface portion 61h4 of the guide protrusion 61h slides on the inclined surface 63c3, the rotary disk 61 rotates in the clockwise direction.

  As described above, when the rod assembly 65 operates, the rotating disk 61 rotates in the clockwise direction from the state shown in the left diagram of FIG. 17A to the state shown in the left diagram of FIG. To. In this state, the rotating disk 61 protrudes from the cutout hole 32 s and is inserted into the lock hole 25. Since the groove 63a1 of the lower rod 63 is fitted in the protrusion 32w (see FIG. 16) of the detergent lid base 32, the rod assembly 65 does not rotate and the rotating disk 61 rotates. It has become.

  Then, the detergent lid 30 is rotated upward from the state shown in FIG. 17B, so that the rod assembly 65 moves in a direction protruding from the rotating disk 61 by the biasing force of the coil spring 64. At this time, the rod assembly 65 moves in the direction protruding from the rotary disk 61, whereby the guide protrusion 61h moves upward in the vertical direction from the state shown in the right figure of FIG. 17B, and the inclined surface portion 61h3 is the upper rod. Then, the inclined surface portion 61h3 moves to the bottom (point P3) of the valley portion 62b2 while sliding on the inclined surface 62b3. When the inclined surface portion 61h3 of the guide protrusion 61h slides on the inclined surface 62b3, the rotating disk 61 further rotates in the clockwise direction.

  Thus, by operating the rod assembly 65, the rotating disk 61 further rotates clockwise from the state shown in the left figure of FIG. 17B, and the state shown in the left figure of FIG. 17C. To. In this state, the rotating disk 61 has come out of the lock hole 25 and is accommodated in the notch hole 32s.

FIGS. 18A and 18B are diagrams for explaining the operation of the latch assembly from the unlocked state to the locked state. FIG. 18A shows the unlocked state, FIG. 18B shows the locked state, and FIG. 18C shows the locked state. 18A to 18C are the same as FIGS. 17A to 17C.
As shown in the left diagram of FIG. 18A, when the detergent lid 30 is opened (unlocked state), the rotating disk 61 of the latch assembly 60 comes out of the lock hole 25, and the inside of the cutout hole 32s. Is in the range. Further, in the latch assembly 60, the rod assembly 65 is pressed by the coil spring 64 (see FIG. 4), and as shown in the right view of FIG. 18A, the inclined surface portion 61h3 of the guide protrusion 61h is formed by the upper guide member 62b. It is in contact with the inclined surface 63b3.

  Then, from the state of FIG. 18A, the detergent lid 30 is closed, and the lower end (tip) of the lower rod 63 comes into contact with the flat portion 21e (FIG. 23), whereby the rod assembly 65 is turned into the coil spring 64 (FIG. 4). It is pushed upward in the vertical direction while receiving the urging force of (see). In addition, the detergent lid 30 is pressed until it is pushed slightly inward from the surface 7a (see FIG. 7) of the top panel 7 (see FIG. 21). At this time, as shown in the right figure of FIG. 18B, the inclined surface portion 61h4 of the guide protrusion 61h abuts on the inclined surface 63c3 of the lower rod 63, and then slides on the inclined surface 63c3 while bottoming the valley portion 63c2. Move to (point P4). As described above, the guide protrusion 61h slides down the inclined surface 63c3, whereby the rotating disk 61 rotates in the clockwise direction to reach the state shown in the left diagram of FIG.

  Then, by releasing the hand from the detergent lid 30 from the state shown in FIG. 18B, the detergent lid 30 is brought into the initial state (the detergent absent 30 state) by the biasing force of the hinge spring 42 (see FIG. 8) of the hinge assembly 40. The surface 31a and the surface 7a of the top panel 7 return to the same position). At this time, the rod assembly 65 is moved by the coil spring 64 in a direction in which the rod assembly 65 protrudes from the rotary disk 61, so that the inclined surface portion 61h3 of the guide protrusion 61h is inclined to the upper rod 62 as shown in the right view of FIG. Then, the inclined surface portion 61h3 moves to the bottom (point P5) of the valley portion 62b2 while sliding on the inclined surface 62b3. As described above, the guide protrusion 61h slides on the inclined surface 62b3, whereby the rotating disk 61 further rotates in the clockwise direction to reach the state shown in the left diagram of FIG.

  As described above, when the rod assembly 65 operates, the rotating disk 61 shifts from the state shown in the left figure of FIG. 18A to the state shown in the left figure of FIG. C2 protrudes from the cutout hole 32s, is inserted into the lock hole 25, and the detergent lid 30 is locked.

  Similarly, from the locked state of the detergent lid 30 shown in FIG. 18C, the corner C2 of the rotary disk 61 comes out of the lock hole 25 by pushing the surface 31a of the detergent lid 30 and releasing the hand. And it fits in the notch hole 32s, and the lock | rock of the detergent lid | cover 30 is cancelled | released. By pushing the detergent lid 30 again, the corner C3 of the rotating disk 61 protrudes from the cutout hole 32s, and the detergent lid 30 is locked. Thus, the detergent lid 30 can be repeatedly locked and unlocked simply by pressing the detergent lid 30, improving the operability and facilitating the loading operation of the detergent or the like.

  A case where the detergent lid 30 is closed while the rotating disk 61 is locked will be described. In this case, since the taper 61f is formed on the side surface portion 61e on the lower surface side of the rotary disk 61, the taper 61f hits the upper panel 7 when the detergent lid 30 is closed, so the rotary disk 61 is rotated in the clockwise direction. Thus, the rotating disk 61 is unlocked. Therefore, even if the detergent lid 30 is closed in such a state, the latch assembly 60 can be prevented from being damaged.

  FIG. 19 is an external perspective view showing when the detergent lid is closed, and FIG. 20 is a plan view showing a state of the hinge assembly when the detergent lid is closed. FIG. 19 shows only the top panel 7 provided with the detergent charging unit 10 and the operation panel 11 (the same applies to FIGS. 21 and 23). FIG. 20 shows a state where the detergent lid cover 31 is removed (the same applies to FIGS. 22 and 24). 19 and 20 correspond to the state of FIG.

  As shown in FIG. 19, the top panel 7 is provided with a detergent charging unit 10. The detergent lid 30 of the detergent charging unit 10 is formed in a substantially square shape with a substantially flat surface. The periphery of the detergent lid cover 31 of the detergent lid 30 is surrounded by the top panel 7. That is, a groove is not formed on the surface of the detergent charging unit 10, and a dividing line (divided shape) formed by connecting the components is not formed.

  Therefore, no other than the boundary line that becomes the boundary with the top panel 7 is formed around the detergent charging part 10. Therefore, dust or the like does not remain on the surface 31a of the detergent lid cover 31, and malfunction due to accumulation of dust or the like does not occur. Further, since the surface of the detergent lid 30 is not composed of two parts unlike the conventional open / close lock knob, an assembly error occurs, resulting in an assembly failure and a lock failure with the detergent case 20 (see FIG. 3). It does not cause any troubles.

  As shown in FIG. 20, when the detergent lid 30 is fully closed, as described above, the latch assembly 60 protrudes outward from the notch hole 32s (see FIG. 4) of the detergent lid base 32, and the lock hole 25 (see FIG. 20). 3), the detergent lid 30 is locked.

  Further, in the state where the detergent lid 30 is fully closed, the hinge assembly 40 is such that the straight portion 43c1 of the cam portion 43c of the damper cover 43 and the straight portion 45b1 of the cam portion 45b of the damper case 45 are spaced apart in the circumferential direction. . Further, the hinge assembly 40 is in a state where the spiral portions 43c2 of the cam portion 43c and the spiral portions 45b2 of the cam portion 45b are in contact with each other. In this state, the hinge spring 42 is more compressed than when the detergent lid 30 is opened, and the damper cover 43 is urged toward the damper case 45 side.

FIG. 21 is an external perspective view showing when the detergent lid is pushed, and FIG. 22 is a plan view showing a state of the hinge assembly when the detergent lid is pushed. 21 and 22 correspond to the state of FIG.
As shown in FIG. 21, the detergent lid 30 is pushed down by the hand (pressing operation) at the position indicated by the arrow (near side near the operation panel 11), so that the detergent lid 30 is more than the surface 7 a of the top panel 7. Pushed down (back side). At this time, since the detergent lid 30 is provided with the bellows-shaped packing 34 (see FIG. 6), even if the detergent lid 30 is pushed down as shown in FIG. 21, the detergent lid 30 can be further pushed in. . Further, since the latch assembly 60 (see FIG. 22) is located on the opposite side (the tip side of the detergent lid 30) from the rotation shaft (shaft portions 45c and 51e) of the detergent lid 30, the detergent lid 30 is pushed down. A sufficient depressing stroke can be ensured. Note that the position of the latch assembly 60 in the front-rear direction is preferably on the near side of half of the distance from the pivot shaft (shaft portions 45c, 51e) to the tip of the detergent lid 30.

  As shown in FIG. 22, during the unlocking of the detergent lid 30, as described above, the latch assembly 60 rotates in the clockwise direction in the drawing, and the corner C <b> 1 of the rotating disk 61 is formed in the notch hole 32 s of the detergent lid base 32. It protrudes from (refer FIG. 4), and is inserted in the lock hole 25 (refer FIG. 3). That is, in the state where the detergent lid 30 is pushed in in this way, the detergent lid 30 is not unlocked.

  Further, during the unlocking of the detergent lid 30, the hinge assembly 40 maintains the state in which the spiral portion 43c2 of the cam portion 43c and the spiral portion 45b2 of the cam portion 45b are in contact with each other, and the spiral portion 43c2 and the spiral portion 45b2. The contact range becomes shorter than that in FIG. However, the linear portion 43c1 of the cam portion 43c and the linear portion 45b1 of the cam portion 45b are positions where they do not overlap in the axial direction.

  That is, since the damper case 45 is supported (fixed) on the bearing 23 (see FIG. 3) of the detergent charging case 20 so as not to rotate, the damper cover 43 is rotated so that the spiral portion 43c2 and the spiral portion 45b2 The overlap allowance changes (shortens). That is, with the rotation of the damper cover 43, the spring case 41, the hinge spring 42, the hinge fitting 46, the detergent lid base 32, the detergent lid bottom 33, the packing 34, the hinge 50, and the latch assembly 60 rotate.

FIG. 23 is an external perspective view showing when the detergent lid is fully opened, and FIG. 24 is a plan view showing a state of the hinge assembly when the detergent lid is fully opened. FIG. 23 and FIG. 24 correspond to the state of FIG.
As shown in FIG. 23, when the detergent lid 30 is released from the pressed state (see FIG. 21), the detergent lid 30 is fully opened by the biasing force of the hinge spring 42 of the hinge assembly 40 (from the fully closed state). About 90 is opened and the tip of the detergent lid 30 is in an upward state).

  A part of the rod assembly 65 of the latch assembly 60 protrudes from the back side of the detergent lid 30 (detergent lid base 32). At this time, the tip of the rod assembly 65 is located outside the packing 34. As described above, the latch assembly 60 is disposed outside the packing 34 that surrounds the detergent inlet (opening of the recess 22), so that the detergent put into the detergent case 20 is inserted into the rod assembly 65. It is possible to prevent the detergent lid base 32 from entering through the gap between the holes and prevent the latch assembly 60 from malfunctioning.

  As shown in FIG. 24, in the unlocked state of the detergent lid 30, as described above, the latch assembly 60 further rotates in the clockwise direction in the figure, and the corner C1 of the rotating disk 61 is locked to the lock hole 25 (see FIG. ) And fits into the notch hole 32s (see FIG. 4) of the detergent lid base 32. Thereby, the lock | rock of the detergent lid | cover 30 is cancelled | released, and the detergent lid | cover 30 operate | moves in the direction automatically opened with the spring force which the hinge assembly 40 of the detergent lid | cover 30 has.

  In the unlocked state of the detergent lid 30, the hinge assembly 40 moves in a direction in which the cam portion 43c approaches the cam portion 45b side while the spiral portion 43c2 slides with the spiral portion 45b2. That is, since the damper case 45 is supported so as not to rotate as described above, the damper cover 43 moves to the damper case 45 side by receiving the urging force of the hinge spring 42. At this time, since the spiral portions 43c2 and 45b2 are both formed in a spiral shape, when the damper cover 43 receives the biasing force of the hinge spring 42, the damper cover 43 moves to the damper case 45 side while rotating. . In the present embodiment, the helical portion 43c2 is formed in the damper cover 43, and the helical portion 45b2 is formed in the damper case 45 so as to be fitted to the helical portion 43c2. The hinge assembly excluding the case 45 rotates together with the detergent lid 30. Thus, when the detergent lid 30 is fully opened, the cam portion 43c of the damper cover 43 and the cam portion 45b of the damper case 45 are completely fitted. When the cam portion 43c and the cam portion 45b are completely fitted, the detergent lid 30 stops in a state where it is opened 90 degrees. Thus, when the detergent lid 30 is unlocked, the detergent lid 30 is automatically opened, so that the detergent can be easily put into the detergent case 20.

  25A and 25B show the damper mechanism of the hinge assembly, in which FIG. 25A shows a state in which the detergent lid is fully closed, FIG. 25B shows a state in which the detergent lid is being opened, and FIG. In addition, FIG. 25 is simplified and the illustration of the damper case 45 is omitted. The damper mechanism of the hinge assembly 40 prevents the detergent lid 30 from opening forcefully when the detergent lid 30 is opened from the fully closed state.

  As shown in FIG. 25A, when the detergent lid 30 is in the fully closed state, the contact surface 43s of the damper cover 43 and the receiving portion 44c of the damper 44 are separated from each other. The distance that separates the contact surface 43s and the receiving portion 44c is set to, for example, about half the stroke of the damper cover 43.

  When the detergent lid 30 is unlocked and opened, as shown in FIG. 25B, the damper cover 43 moves while rotating to the right in the figure, and comes into contact when the detergent lid 30 is opened about half. The surface 43s contacts the receiving portion 44c. That is, in the process from the state of FIG. 25A to FIG. 25B, the detergent lid 30 is quickly opened without receiving the damping force by the damper 44.

  Then, as shown in FIG. 25 (c), when the detergent lid 30 is further opened, the damper cover 43 moves while rotating to the right in the figure while the contact surface 43s pushes the receiving portion 44c. As a result, the damper cover 43 moves while rotating to the right in the figure while the operation of the damper cover 43 is attenuated by the damper 44. The distance that attenuates the damper cover 43 is set to a length that is about half the stroke of the damper cover 43.

  Thus, before the detergent lid 30 is fully opened, the detergent lid 30 is opened slowly while being attenuated by the damper 44, so that the detergent lid 30 is slowly opened. Therefore, it is possible to prevent inconveniences such as the detergent lid 30 opening with force, or the detergent lid 30 colliding with the top panel 7 and being damaged.

  Further, when the detergent lid 30 is in the fully closed state, the receiving portion 44c and the contact surface 43s are separated from each other (see FIG. 25A), thereby preventing the detergent lid 30 from opening while being attenuated from the initial stage. Thus, the time until the detergent lid 30 is fully opened can be prevented from becoming too long.

  As described above, the drum type washing machine 1 according to the present embodiment includes the detergent charging case 20 into which the detergent is charged in the detergent charging unit 10 and the detergent lid 30 that opens and closes the detergent charging case 20. A lock / unlock mechanism (latch assembly 60) is provided that presses the detergent lid 30 into a locked state and then releases the locked state by pressing the detergent lid 30. According to this, since parts such as a lock knob are not necessary on the surface of the detergent lid 30, the surface of the detergent lid 30 can be constituted by a substantially flat surface without dividing lines or irregularities, and the detergent lid 30 is cleaned. Can be improved. Further, since there is no need to configure the detergent lid 30 with a plurality of parts, opening and closing problems due to dimensional variations of the detergent lid 30 are unlikely to occur.

  Moreover, in this embodiment, the shaft parts 45c and 51e which pivotally support the detergent lid | cover 30 to the detergent addition case 20 are provided, and the shaft parts 45c and 51e which support the detergent lid | cover 30 rotatably are the opposite side (detergent lid | cover 30). A lock / unlock mechanism (latch assembly 60) is provided on the front side when the door is closed. According to this, it is possible to ensure a sufficient pressing stroke when the detergent lid 30 is pressed, and to reliably operate the latch assembly 60.

  Further, in the present embodiment, the packing 34 that seals the edge 21 of the detergent charging case 20 and the detergent lid 30 is provided, and the lock / unlock mechanism is disposed outside the packing 34. According to this, it is possible to prevent a detergent or the like from entering the latch assembly 60, and the latch assembly 60 can be operated stably.

  In the present embodiment, the packing 34 has a bellows shape. According to this, the edge 21 of the detergent charging case 20 and the detergent lid 30 can be sealed, and further, when the detergent lid 30 is pressed from the fully closed state, the detergent lid 30 can be easily pushed in.

  Moreover, in this embodiment, the through-hole 34c is formed in the packing 34 (refer FIG. 6 (a), (b)). According to this, when the detergent lid 30 is released from the closed state, the packing 34 can prevent the detergent lid 30 from opening or becoming difficult to open due to the action of the suction cup.

  In the present embodiment, the surface of the detergent lid 30 (the surface 31a of the detergent lid cover 31) has no irregularities and is a surface continuous with the surface 7a of the upper panel 7. According to this, while being able to emphasize the flat feeling on an external appearance, cleaning property can be improved more.

  In addition, this invention is not limited to above-described embodiment, In the range which does not change the range of this invention, it can change variously. In this embodiment, the shaft portions 45c and 51e are configured to face the back side of the detergent lid 30 (the side opposite to the front side of the drum type washing machine 1) and to the left and right directions. For example, the shaft portions 45c and 51e may have a left end (or right end) and a front-rear direction. Moreover, the structure provided with the axial part which the detergent lid | cover 30 divides | segments into right and left, and is open in the right and left both sides may be sufficient.

  In the present embodiment, the detergent charging unit 10 including the substantially rectangular detergent lid 30 has been described as an example, but a configuration including a triangular detergent lid may be used. In the present embodiment, the detergent lid 30 having a long shape on the left and right is described as an example, but a detergent lid having a long shape in the front-rear direction may be used.

  Further, in the present embodiment, the case where the latch assembly 60 and the hinge assembly 40 are arranged at different positions has been described as an example, but the lock / unlock mechanism is incorporated in the hinge assembly 40. There may be.

  In this embodiment, the drum type washing machine (washing and drying machine) 1 has been described as an example. However, the present invention may be applied to a vertical washing machine and a vertical washing machine (fully automatic washing machine). .

DESCRIPTION OF SYMBOLS 1 Drum type washing machine 2 Case 7 Upper surface panel 7a Surface 10 Detergent input part 13 Outer tank 14 Rotating drum 20 Detergent input case 30 Detergent lid 31 Detergent lid cover 31a Surface 32 Detergent lid base 33 Detergent lid under 34 Packing 34c Through-hole 40 Hinge assembly 41 Spring case 42 Hinge spring 43 Damper cover 44 Damper 45 Damper case 46 Hinge bracket 45c Shaft portion 50 Hinge 51e Shaft portion 60 Latch assembly (lock / unlock mechanism)
61 Rotating disc 62 Upper rod 63 Lower rod 64 Coil spring 65 Rod assembly

Claims (6)

A housing,
An outer tub elastically supported in the housing;
A rotating drum rotatably supported in the outer tub;
A detergent insertion part for introducing a detergent into the upper part of the housing;
The detergent charging unit includes a detergent charging case into which detergent is charged, and a detergent lid that opens and closes the detergent charging case,
The detergent lid is provided with a lock / unlock mechanism for bringing the detergent lid into a locked state by pressing the detergent lid and then releasing the locked state by pressing the detergent lid. Machine. A shaft portion that pivotally supports the detergent lid on the detergent charging case,
The drum type washing machine according to claim 1, wherein the detergent lid is provided with the lock / unlock mechanism on a side opposite to the shaft portion. Having a packing that seals the edge of the detergent charging case and the detergent lid;
The drum type washing machine according to claim 1 or 2, wherein the lock / unlock mechanism is disposed outside the packing.   The drum-type washing machine according to claim 3, wherein the packing has a bellows shape.   The drum-type washing machine according to claim 3 or 4, wherein a through hole is formed in the packing.   The surface of the detergent lid is configured so as not to be uneven and to be a surface continuous with the surface of the upper panel of the housing. Drum-type washing machine.