WO2022270040A1

WO2022270040A1 - Washing and drying machine

Info

Publication number: WO2022270040A1
Application number: PCT/JP2022/011051
Authority: WO
Inventors: 聡凜佐々木; 和寛塚本; 重幸佐々木; 哲也山本; 龍之介山口; 啓太秋山
Original assignee: 日立グローバルライフソリューションズ株式会社
Priority date: 2021-06-24
Filing date: 2022-03-11
Publication date: 2022-12-29

Abstract

The purpose of the present invention is to minimize adhesion of lint to a bellows while reducing branching air volume.　This washing and drying machine comprises: an outer tub 3 provided with an opening 3s for loading and unloading laundry, and also provided with an outer tub body 3a and an outer tub cover 3b; a washing tub 4 that is rotatably supported in the outer tub 3, that is rotationally driven by a motor, and that accommodates laundry; a door glass 25 for opening and closing the opening 3s in the outer tub 3; and a bellows 70 provided in the opening 3s in the outer tub 3, the bellows 70 having formed therein a recess 71 that is recessed from the outer-tub 3 side toward the door-glass 25 side. The outer tub 3 has a main discharge port 42 for discharging air into the washing tub 4, and an auxiliary discharge port 52 for discharging air toward the recess 71 in the bellows 70.

Description

Washing and drying machine

The present invention relates to washing and drying machines.

Techniques described in, for example, Patent Documents 1 and 2 have been proposed as a channel structure for preventing lint (thread waste) from accumulating in the space between the door glass and the bellows in a drum-type washer/dryer. ing.

Japanese Patent Application Laid-Open No. 2020-31693 JP 2019-97720 A

The invention described in Patent Document 1 describes a flow path structure in which a nozzle for blowing air toward between the door glass and the bellows is provided in the outer tank cover. However, in the flow path described in Patent Document 1, it is necessary to provide a flow path separate from the flow path for drying the clothes, which complicates the structure.

The invention described in Patent Document 2 describes a channel structure that branches the wind of the channel for drying clothes and blows the wind toward the door glass and bellows. However, in the flow path structure described in Patent Document 2, the wind is blown only to a part of the bellows, and the wind is not blown to the curved structure part where the lint tends to accumulate, preventing the lint from accumulating. Insufficient effect.

An object of the present invention is to solve the above problems and to provide a washing and drying machine that reduces the amount of branched air while suppressing adhesion of lint to the bellows.

To achieve the above object, the present invention provides an outer tub having an opening for loading and unloading laundry, an outer tub main body and an outer tub cover, and an outer tub rotatably supported in the outer tub and driven to rotate by a motor. a washing tub for accommodating laundry, a door for opening and closing an opening of the outer tub, and a recess provided in the opening of the outer tub and recessed from the outer tub side toward the door side. and a bellows, wherein the outer tub includes a main outlet for discharging air into the washing tub and a secondary outlet for discharging air toward the recess of the bellows. characterized by

According to the present invention, it is possible to provide a washing and drying machine that reduces the amount of branched air while suppressing adhesion of lint to the bellows.

1 is an exploded perspective view of a drum-type washing and drying machine according to an embodiment of the present invention; FIG. 1 is an external perspective view of a drum-type washing and drying machine according to an embodiment of the present invention; FIG. FIG. 3 is a perspective view of the outer tub cover 3b according to the embodiment of the present invention when viewed from the rear side of the drum-type washing and drying machine 1; Fig. 2 is a front view of the outer tub cover 3b according to the embodiment of the present invention when viewed from the front side of the drum-type washing and drying machine 1; 5 is an enlarged view around the duct nozzle 40 of FIG. 4. FIG. It is the figure which looked at the ventilation cover 50 which concerns on the Example of this invention from the rear side of the drum type washing-drying machine 1. FIG. It is the figure which looked at the ventilation cover 50 which concerns on the Example of this invention from the front side of the drum-type washing-drying machine 1. FIG. FIG. 7 is a perspective view of FIG. 6; FIG. 8 is a perspective view of FIG. 7; 3 is an exploded perspective view of an outer tank cover 3b, a bellows 70, and a door glass 25 according to an embodiment of the invention; FIG. Fig. 10 is a front view of the outer tank cover 3b, the bellows 70, and the door glass 25 during assembly according to the embodiment of the present invention; FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 11; 13 is an enlarged view of the vicinity of the blower cover of FIG. 12; FIG. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an external perspective view showing a drum-type washing and drying machine according to Embodiment 1 of the present invention with a door opened; BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the drum-type washing-drying machine which concerns on Example 1 of this invention in the state which opened the door. BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing which looked at the internal structure of the drum-type washing-drying machine which concerns on Example 1 of this invention from the side in the state which opened the door. 17 is an enlarged view of part A in FIG. 16; FIG. FIG. 18 is a diagram showing a state in which a lighting unit (LED light) is removed from FIG. 17;

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. Similar components are denoted by similar reference numerals, and similar descriptions are not repeated.

The various constituent elements of the present invention do not necessarily have to be independent entities, and one constituent element may consist of a plurality of members, a plurality of constituent elements may consist of one member, a certain constituent element may part of a component, part of one component overlaps part of another component, and so on.

FIG. 1 is an exploded perspective view of a drum-type washing and drying machine according to an embodiment of the present invention. In this embodiment, the main board unit for controlling the washing machine, the circulation means (piping, pump) for circulating the washing water, the drying means for circulating the drying air for drying the object (clothing), and the piping The illustration of other configurations is omitted.

As shown in FIG. 1, the drum-type washing and drying machine 1 includes an outer tub 3 that is elastically supported and stores water, and a washing tub 4 (rotating drum) that is rotatably supported in the outer tub 3 and driven to rotate by a motor. , and a housing 10 that accommodates the outer tub 3 and the washing tub 4 .

The outer tub 3 is made of synthetic resin and has a cylindrical shape, and coaxially encloses the washing tub 4 . The outer tank 3 is composed of a bottomed cylindrical outer tank body 3a having an opening 3s and an outer tank cover 3b attached to the front opening of the outer tank body 3a. A rubber bellows 70 (see FIG. 10) is attached to the opening 3s of the outer tank 3 (outer tank cover 3b) so that the outer tank 3 is water-sealed by closing the door glass 25 (door). It has become. Also, the outer tub 3 is elastically supported via a damper 5 .

The washing tub 4 is a rotatably supported cylindrical washing and dehydrating tub, and has a large number of through holes 4a formed in its outer peripheral wall for water flow and ventilation. An opening 4b is formed for this purpose. A fluid balancer (not shown) that rotates together with the washing tub 4 is provided on the outer peripheral side of the opening 4b. A lifter 4c is provided on the inner peripheral wall of the washing tub 4 to lift the laundry during the washing operation and the drying operation.

The housing 10 includes a front panel (front panel) 11 arranged on the front side and side panels (side panels) 14A and 14B arranged on the left and right sides by pressing sheet metal (metal, color steel sheet) or the like. have. Further, the housing 10 includes a rear panel (back plate) 16 arranged on the rear side, which is formed in a substantially U shape when viewed from the top, by pressing a sheet metal or the like, and a base arranged on the bottom side of the outer tank 3. 17 and an upper panel (upper plate, top panel) 18 arranged above the outer tub 3 .

The front panel 11 has a front upper panel 12 arranged at the front upper part and a front lower panel 13 arranged at the front lower part. The front upper panel 12 is formed of a single sheet metal, and has a flat portion 12a facing the front side and

curved portions

12b and 12c curved on both left and right sides of the flat portion 12a. The front lower panel 13 is formed of a single sheet metal, is formed vertically shorter than the front upper panel 12, and has a flat portion 13a facing the front side and curved portions 13b curved on both left and right sides of the flat portion 13a. 13c and.

The

curved portions

12b and 12c are formed to have similar curved shapes from the upper end to the lower end of the front upper panel 12. As shown in FIG. The

curved portions

13b and 13c are formed to exhibit similar curved shapes from the upper end to the lower end of the front lower panel 13. As shown in FIG. Further, the

curved portions

12b, 12c and the

curved portions

13b, 13c have the same curved shape. As a result, when the front upper panel 12 and the front lower panel 13 are stacked vertically, the surface of the flat portion 12a and the surfaces of the

curved portions

12b and 12c and the surface of the flat portion 13a and the surfaces of the

curved portions

13b and 13c are formed. are configured to be flush with each other.

A door glass 25 is attached to the flat portion 12a of the upper front panel 12 via a hinge. A flat portion 13a of the lower front panel 13 is provided with a lid 13d for inserting and removing a filter member of a lint filter (not shown).

The side panel 14A is formed by pressing sheet metal or the like, and is formed to have the same height as the front panel 11. A curved portion 14a that curves inward is formed at the rear end of the side panel 14A. . The curved portion 14a is formed to exhibit a similar curved shape from the upper end to the lower end. Further, the side panel 14A is formed with a plurality of handle portions 14b used during transportation, and a plurality of recesses 14c for reinforcement.

The side panel 14B is formed by pressing sheet metal or the like, and has a symmetrical shape with the side panel 14A. A handle portion 14b and a concave portion 14c are formed.

The rear panel 16 is formed by pressing sheet metal or the like, and is composed of an upper rear panel 16A provided on the upper rear surface and a lower rear panel 16B provided from the center of the rear surface to the bottom. Further,

curved portions

16a and 16b that curve toward the

side panels

14A and 14B are formed at the left and right ends of the upper rear panel 16A and the lower rear panel 16B.

The base 17 is made of synthetic resin, for example, and is reinforced with grid-like ribs formed inside. Further, the lower ends of the

side panels

14A and 14B are fixed to the base 17 with screws or the like.

The top panel 18 is formed by molding synthetic resin, for example, and is formed in a substantially rectangular shape when viewed from above. The top panel 18 is formed in a single plate shape and is configured to close the top opening formed by connecting the front panel 11, the

side panels

14A and 14B, and the rear panel 16 together.

Also, on the top panel 18, a detergent input section 20 is attached to the front left side in the front-rear direction, and an operation panel 22 is attached to the front right side.

In addition, the housing 10 is reinforced by an upper front reinforcing plate 31 , a lower front reinforcing plate 32 , an upper reinforcing plate 35 , and an upper connecting reinforcing portion 36 .

The front upper reinforcing plate 31 spans the

side panels

14A and 14B, and connects the upper ends of the front sides of the

side panels

14A and 14B. That is, the front upper reinforcing plate 31 is formed by pressing a sheet metal or the like. and bending

portions

31b and 31c. A notch portion 31d is formed in the plate portion 31a so that the plate portion 31a and the opening portion 4b do not overlap in the front-rear direction.

The front lower reinforcing plate 32 spans the

side panels

14A and 14B and connects the lower front sides of the

side panels

14A and 14B. That is, the front lower reinforcing plate 32 is formed by pressing a sheet metal or the like. and

bent portions

32b and 32c. A notch portion 32d is formed in the plate portion 32a so that the plate portion 32a and the opening portion 4b do not overlap in the front-rear direction.

Also, the front lower reinforcing plate 32 is connected by lower reinforcing

support plates

33 and 34 . The lower reinforcing support plate 33 has an upper connecting portion 33 a connected to the bent portion 32 b of the lower front reinforcing plate 32 and a lower connecting portion 33 b fixed to the base 17 . The lower reinforcing support plate 34 has an upper connecting portion 34 a connected to the bent portion 32 c of the lower front reinforcing plate 32 and a lower connecting portion 34 b fixed to the base 17 .

The upper reinforcing plate 35 spans the

side panels

14A and 14B and connects the upper edges of the

side panels

14A and 14B. That is, the upper reinforcing plate 35 is formed by pressing a sheet metal or the like. and bending

portions

35b and 35c. Further, the plate portion 35a is formed by bending a portion of the plate portion 35a into a concave shape as an attachment portion for attaching a main board unit (not shown).

The upper connection reinforcing portion 36 connects the upper reinforcing plate 35 and the rear panel 16 . Further, the upper connection reinforcing portion 36 is molded from a synthetic resin, and connects the upper reinforcing plate 35 and the rear panel 16 via screws (not shown). In addition, the upper connection reinforcing portion 36 extends in the front-rear direction and is arranged so as to be positioned at the central portion in the left-right direction.

A water supply unit (not shown), a dry filter unit 37, and the like are attached to the left and right sides of the upper connection reinforcing portion 36. The water supply unit (not shown) includes a water supply pipe (not shown), a detergent water supply electromagnetic valve connected to a water supply hose connection port 18f (see FIG. 2) and a bath water hose connection port 18g (see FIG. 2), a pump for sucking bath water, and the like. is.

FIG. 2 is an external perspective view of a drum-type washing and drying machine according to an embodiment of the present invention. As shown in FIG. 2, the curved portion 12b of the front upper panel 12 and the curved portion 13b of the front lower panel 13 are curved from the right end position of the door glass 25 toward the side panel 14A. Further, the curved portion 12c of the front upper panel 12 and the curved portion 13c of the front lower panel 13 are curved from the left end position of the door glass 25 toward the side panel 14B (see FIG. 1). As described above, in the drum-type washing and drying machine 1 of this embodiment, the front panel 11 has a shape that is greatly curved (left and right) from the width of the door glass 25 toward the

side panels

14A and 14B. ing.

Also, the top panel 18 closes the top opening formed when the front panel 11, the side panel 14A, the side panel 14B (see FIG. 1), and the rear panel 16 (see FIG. 1) are joined together. It has a shape that allows The outer peripheral edge of the top panel 18 includes the top edge of the front panel 11, the top edge of the side panel 14A, the top edge of the side panel 14B (see FIG. 1), and the top edge of the back panel 16. and are configured to overlap.

It should be noted that the drum-type washing and drying machine 1 has a blower unit (not shown) below the dry filter unit 37 . The blower unit is composed of a driving fan motor (not shown), an impeller (not shown), and a fan case (not shown). A fan heater (not shown) is incorporated in this fan case, and this fan heater (not shown) heats the air sent from the impeller to produce dry air A (see FIG. 3).

FIG. 3 is a perspective view of the outer tub cover 3b according to the embodiment of the present invention when viewed from the rear side of the drum-type washing/drying machine 1. FIG. The outer tub cover 3b has a duct nozzle 40 that guides the dry air A generated by the blower unit into the washing tub 4 (see FIG. 1). The duct nozzle 40 forms a dry flow path 43 together with the blower cover 50, and has a suction opening 41 as an inlet for the dry air A generated by the blower unit and a main outlet 42 as an outlet for the dry air A.

FIG. 4 is a front view of the outer tub cover 3b according to the embodiment of the present invention when viewed from the front side of the drum-type washing/drying machine 1. FIG. FIG. 5 is an enlarged view around the duct nozzle 40 of FIG. The duct nozzle 40 is provided with a blower cover 50 that branches the dry air A toward the door glass 25 (the front side of the drum type washing/drying machine 1), forming a drying flow path 43 (see FIG. 3). . The blower cover 50 is provided with a sub-discharge port 52, and the dry air A passing through the drying flow path 43 flows through the sub-discharge port 52, thereby enabling the branching of the dry air A in the direction of the door glass 25. there is The secondary discharge port 52 is composed of an upper discharge port 54 , a middle discharge port 55 , and a lower discharge port 56 in this order from the side of the duct nozzle 40 near the suction opening 41 .

Further, a circulation hole 63, which is a substantially rectangular through hole for allowing water and air to flow from the door glass 25 side, is provided in the lower portion of the opening 3s of the outer tank cover 3b.

The blower cover 50 is on the side of the door glass 25, and when the center O of the opening 3s is used as a reference, an inner blower cover rib 58 having an arc-shaped protrusion provided on the inside and an arc-shaped protrusion provided on the outside. has an outer blower cover rib 59 having a projection shape.

The outer tub cover 3b is on the side of the door glass 25, and when the center of the opening 3s is taken as a reference, the inner outer tub cover rib 61, which is an arcuate protrusion provided on the inside, and the rib 61 provided on the outside. It has an outer outer tank cover rib 62 having an arcuate projection shape.

The inner blower cover rib 58 and the inner outer tank cover rib 61 are connected and formed on the same circular arc, and together form a projection shape formed by one circular arc. Similarly, the outer blower cover rib 59 and the outer outer tank cover rib 62 are connected and formed in the same circular arc shape, and together form a projecting shape formed by one circular arc. That is, the inner fan cover rib 58 and the inner outer tank cover rib 61, the outer fan cover rib 59 and the outer outer tank cover rib 62 are formed over the entire circumference of the outer tank 3, and the air discharged from the sub-discharge port 52 is distributed over the entire bellows 70. It functions as a guide portion that guides to a concave portion 71 (FIG. 13) formed over the circumference. Due to the shape of these projections, the branched dry air A is guided to the flow holes 63 without diffusing to other parts.

FIG. 6 is a view of the blower cover 50 according to the embodiment of the present invention as seen from the rear side of the drum-type washing and drying machine 1. FIG. FIG. 7 is a view of the blower cover 50 according to the embodiment of the present invention as seen from the front side of the drum-type washer/dryer 1. As shown in FIG. 8 is a perspective view of FIG. 6. FIG. 9 is a perspective view of FIG. 7. FIG.

The blower cover 50 has a washing tub side surface 53 forming the drying channel 43 and a door glass side surface 57 that is the back side of the washing tub side surface 53 . The side surface 53 of the washing tub has a secondary discharge port 52 that is a through hole extending from the side surface 53 of the washing tub to the side surface 57 of the door glass. The sub-discharge port 52 is composed of six through-holes, which are composed of an upper-stage discharge port 54, a middle-stage discharge port 55, and a lower-stage discharge port 56 from the side near the suction opening 41 of the duct nozzle 40. there is A plurality of upper discharge ports 54, middle discharge ports 55, and lower discharge ports 56 are provided side by side in the circumferential direction.

The upper discharge port 54 and the middle discharge port 55 are formed so that the opening on the side surface 53 of the washing tub is larger than the opening on the side surface 57 of the door glass. That is, the opening is provided so as to be larger on the inlet side than on the outlet side of the dry air A. This suppresses flow separation when the dry air A flows through the upper discharge port 54 and the middle discharge port 55 .

In addition, the interval between the openings of the upper discharge ports 54 adjacent in the circumferential direction is formed so that the side surface 57 of the door glass is wider than the side surface 53 of the washing tub. Similarly, the interval between the openings of the adjacent middle outlets 55 is formed so that the side surface 57 of the door glass is wider than the side surface 53 of the washing tub. As a result, the branched dry air A is turned in the circumferential direction, so that the dry air A can easily flow around the door glass 25 and the bellows 70 (see FIG. 10).

In this embodiment, the secondary discharge port 52 is provided with two openings in each step. A step may have one opening. In this case, lint deposition can be prevented with a smaller amount of air. However, since the lint often accumulates over the entire circumference, it is desirable to provide a plurality of openings in each stage so that branched flows flow over the entire circumference, as in this embodiment.

Further, on the side surface 57 of the door glass, an inner fan cover rib 58 having an arcuate projection shape and provided between the lower discharge port 56 and the middle discharge port 55 and an arcuate projection shape of the middle discharge port are provided. 55 and the upper discharge port 54 is provided with an outer blower cover rib 59 . The inner blower cover rib 58 and the outer blower cover rib 59 protrude toward the door aragus 25 side.

FIG. 10 is an exploded perspective view of the outer tub cover 3b, bellows 70, and door glass 25 according to the embodiment of the present invention. FIG. 11 is a front view of the outer tub cover 3b, the bellows 70, and the door glass 25 during assembly according to the embodiment of the present invention. 12 is a cross-sectional view taken along line XII-XII in FIG. 11. FIG. 13 is an enlarged view of the periphery of the blower cover in FIG. 12. FIG.

The bellows 70 is an annular rubber component, and is provided between the outer tub cover 3b and the door glass 25 for sealing so that the fluid does not flow out of the drum-type washing/drying machine 1.

The bellows 70 has a bellows structure so as not to transmit displacement due to sinking of the outer tub 3 and vibration of the outer tub 3 to the housing. With this bellows structure, the bellows 70 has a convex portion 72 close to the outer tank cover 3b and a concave portion 71 far from the outer tank cover 3b. That is, the concave portion 71 is recessed from the outer tub 3 side toward the door glass 25 side, and the convex portion 72 is formed protruding from the door glass 25 side toward the outer tub 3 side as viewed from the outer tub 3 side. there is Moreover, while the convex part 72 is formed over the perimeter of the bellows 70, multiple formation is carried out so that the recessed part 71 may be pinched|interposed in the radial direction.

Also, the inner blower cover rib 58 , the outer blower cover rib 59 , the inner outer tank cover rib 61 , and the outer outer tank cover rib 62 are provided so as to face the plurality of protrusions 72 of the bellows 70 . As a result, the distance between the convex portion 72 and the outer tank cover 3 b is shortened, and the air discharged from the sub-discharge port 52 is guided to the concave portion 71 .

Further, the door glass 25 has a recessed shape when viewed from the front side of the drum-type washer/dryer 1, and a narrow portion 73 is formed around a portion that contacts the bellows 70.

The upper discharge port 54 and the middle discharge port 55 of the blower cover 50 are provided at positions corresponding to the recesses 71 of the bellows 70, respectively, and the lower discharge port 56 is provided at a position corresponding to the narrow portion 73 of the door glass 25. ing.

In addition, in this embodiment, the blower cover 50 is configured as a separate part that can be attached and detached from the outer tank cover 3b, but it may be integrally molded with the outer tank cover 3b. In that case, the number of parts can be reduced, and the production cost can be reduced.

The effect of this configuration will be explained using FIG. When the clothes in the tub are agitated by the rotation of the washing tub 4 during the drying operation, the clothes are rubbed against each other and a large amount of lint is generated. This lint tends to accumulate in areas where the flow is stagnant in the tank interior space. In particular, the recessed portion 71 of the bellows 70 and the narrowed portion 73 of the door glass 25 are areas where the space is narrow and the flow tends to stagnate, and lint tends to accumulate.

Part of the drying air A flowing through the drying flow path 43 is branched from the sub-discharge port 52 of the blower cover 50. At this time, the sub-discharge port 52 (upper discharge port 54, middle discharge port 55, lower discharge Since the outlets 56 ) are provided at positions corresponding to the recessed portion 71 and the narrowed portion 73 , the branched flow of the drying air A flows toward the recessed portion 71 and the narrowed portion 73 .

As a result, the drying air A flows through the concave portion 71 and the narrow portion 73, which are areas where the flow tends to stagnate and lint tends to accumulate, so that the stagnation of the flow can be reduced, and the lint generated during the drying operation can be reduced. It becomes possible to prevent deposition.

In this embodiment, since there are two concave portions 71 and one narrow portion 73, the sub-ejection port 52 is composed of three stages: an upper ejection port 54, a middle ejection port 55, and a lower ejection port 56. However, for example, in the case where there is one recessed portion 71 and one narrowed portion 73, the sub-ejection port 52 corresponds to that, and has an ejection port corresponding to the recessed portion 71 and an ejection port corresponding to the narrowed portion 73. You may make it comprise two steps of an exit. In that case, lint deposition can be prevented with a smaller amount of air.

In addition, the inner blower cover rib 58 and the outer blower cover rib 59 are provided at positions corresponding to the protrusions 72 , respectively, and form regions 74 that are close to the protrusions 72 . This prevents the branched flow from the sub-discharge port 52 from circulating through the region 74 and diffusing to other parts, making it possible to guide the flow to the recess 71 with a small amount of air.

In addition, the upper discharge port 54 and the middle discharge port 55 are provided with larger openings on the drying channel 43 side than on the door glass 25 side. As a result, when the dry air A flows through the upper discharge port 54 and the middle discharge port 55 , separation of the flow is suppressed within the through holes, and the flow is easily guided to the concave portion 71 of the bellows 70 .

Further, the interval between the openings of the upper ejection port 54 and the middle ejection port 55 on the door glass 25 side is set wider than the interval between the openings on the drying flow path 43 side. As a result, the branched dry air A is turned in the circumferential direction, so that the dry air A can easily flow over the entire circumference of the door glass 25 and the bellows 70 .

Furthermore, the inner blower cover rib 58, the outer blower cover rib 59, the inner outer tank cover rib 61, and the outer outer tank cover rib 62 form a region 74 close to the projection 72 over substantially the entire circumference. As a result, the branched flow led to the recess 71 from the sub-discharge port 52 flows through the region 74 and is suppressed from diffusing to other parts, and the deposition of lint on the recess 71 is suppressed over the entire circumference with a small amount of air flow. can do.

In this embodiment, the protrusions formed by the inner fan cover rib 58 and the inner outer tank cover rib 61, and the outer fan cover rib 59 and the outer outer tank cover rib 62 are perfect circles formed by one circular arc. This is because the shape of the convex portion 72 of the bellows 70 is also a perfect circle. Thereby, corresponding to the shape of the convex part 72, the area|region 74 with a short distance with the convex part 72 can be provided in the perimeter.

In addition, the entire circumference of the laundry inlet on the front of the washing machine is usually covered with a rubber door bellows that connects the housing and the outer tub. It has an elastic part with one bent part between the movable side), and the elastic part expands and contracts according to the movement of the outer tank, thereby absorbing and reducing vibration during operation. However, if an attempt is made to increase the size of the outer tub while keeping the size of the housing substantially unchanged, the space that can be allocated to the door bellows in the longitudinal direction of the washing machine will decrease.

At this time, if the front-to-rear dimension of the door bellows is shortened while maintaining the stretchable shape having one bending portion as in the patent documents (Japanese Patent Application Laid-Open No. 2015-19840, Japanese Patent Application Laid-Open No. 2006-218195), the door bellows stretches and contracts. There is a problem that the door bellows may be perforated due to repeated rubbing between parts during operation.

The present invention has been made in view of the above points, and its object is to prevent the door bellows from rubbing against other parts during operation and to prevent the door bellows from being punctured. To provide a type washing and drying machine.

In order to achieve the above object, the present invention provides a housing, an outer tub provided in the housing, a drum having an inlet inserted into the outer tub for loading laundry, and the drum. A driving device that rotates, a door that is openable and closable at the loading port into which laundry is loaded, and when the door is closed, contacts the door to watertightly seal the door and the outer tub. The door bellows has an elastic part that expands and contracts according to the movement of the outer tub, wherein the elastic part of the door bellows has a plurality of bends. It is characterized by being composed of parts.

Specifically, the expansion and contraction portion of the door bellows is composed of at least two first and second bending portions arranged in the vertical direction, and the second bending portion is below the first and second bending portions. The position of the apex of the second bent portion is the same in the vertical direction as the position of the apex of the first bent portion, or the vertex of the first bent portion is arranged so that the bent portion is positioned. is positioned closer to the outer tank than the position of .

As a result, the elastic part of the door bellows does not rub against other parts during driving, and it is possible to prevent holes in the door bellows.

FIG. 14 is an external perspective view showing a drum type washing/drying machine 1100 according to an embodiment of the present invention with the door 12 opened, and FIG. FIG. 16 is a front view showing a state in which the door 12 is opened, FIG. 16 is a cross-sectional view of the internal structure of the drum-type washing and drying machine 1100 according to the embodiment of the present invention, viewed from the side with the door 12 opened, FIG. [Fig. 17] is an enlarged view of part A in Fig. 16;

The configuration of the drum type washing/drying machine 1100 of this embodiment will be described below with reference to FIGS. 14, 15, 16 and 17. FIG.

In FIG. 14, the housing 11 constituting the outside of the drum-type washer/dryer 1100 of this embodiment includes a housing main body 11b in which both side surfaces and the rear surface are integrally formed of a steel plate, and a housing body 11b below the housing main body 11b. It is composed of an underplate (not shown) arranged at the bottom, a front cover 11a covering the front surface of the housing body 11b, and a top cover 11c arranged at the top. A door 12 that can be opened and closed is arranged on the front surface of the housing 11 .

A water supply hose connection port for supplying water from a water faucet to the drum-type washing and drying machine 1100 is provided on the upper back of the housing 11 . The door 12 is supported by a hinge provided on the front cover 11a so that it can be opened and closed. When the door opening handle 120a is pulled, the locking mechanism is disengaged and opened forward, pressing the door 12 against the front cover 11a. It is locked by closing.

In addition, the front cover 11a has a circular opening concentrically with the opening of the outer tub 110 for loading and unloading clothes.

In addition, the door 12 is provided with an operation unit in which operation switches and the like are arranged. connected to. A drain hose for draining water is attached to the rear surface of the housing 11 .

Further, inside the housing 11 of the drum-type washing and drying machine 1100 of this embodiment, an outer tub 110 for storing water is provided. is inserted. The outer tank 110 is suspended from the housing 11 via a spring, and the center of gravity of the outer tank 110 is suspended from the left and right. Supported.

A rotating shaft 14 connected to the drum 111 is provided behind the outer tub 110, a pulley 150 is connected to the rotating shaft 14, and a motor 113 is connected to the pulley 150 via a belt 160. there is The motor 113 rotates the drum 111 through the belt 160 , the pulley 150 and the rotating shaft 14 .

Also, the control unit controls the number of rotations of the motor 113, and this control unit acquires the sensor value of the vibration sensor provided in the drum-type washing/drying machine 1100.

During the dehydration process in the drum-type washing/drying machine 1100 of the present embodiment, if the vibration amplitude of the outer tub 110 detected by the vibration sensor exceeds a preset threshold value due to unbalance of the clothes put into the drum 111, the dehydration process is started. After temporarily stopping the drum 111, the drum 111 is rotated forward and backward to correct the imbalance of the clothes, and then the dewatering process is redone. When the motor 113 is driven, the drum 111 is rotated in both forward and reverse directions.

Further, on the inner peripheral surface of the drum 111, a plurality of dewatering holes 111a for draining the washing water in the drum 111 to the outer tub 110 are arranged at intervals in the circumferential direction of the drum 111. A plurality of lifters 114 are provided for lifting the clothes thrown into. The lifter 114 is installed so as to extend in the longitudinal direction of the drum 111 .

Further, the opening of the outer tub 110 and the inlet of the housing 11 are connected by a door bellows 115 having an extendable portion 115a that expands and contracts according to the movement of the outer tub 110. The door bellows 115 is an annular elastic member. and the drum 111 is water-sealed by closing the door 12. - 特許庁That is, when the door 12 is closed, the door bellows 115 comes into contact with the door 12 to seal the door 12 and the outer tub 110 watertightly. have.

In addition, the inlet of the housing 11, the opening of the outer tub 110, and the opening of the drum 111 communicate with each other, and by opening the door 12, it is possible to take clothes in and out of the drum 111.

In addition, a water supply unit equipped with a water supply valve is provided in the upper part of the housing 11 and in front of the water supply hose connection port.

This water supply unit has a detergent storage section for storing detergent and a finishing agent storage section for storing finishing agent. It is connected. The water supply unit can be pulled out to the front side, and the user puts detergent and finishing agent into the detergent storage section and the finishing agent storage section while the water supply unit is pulled out.

Also, during washing in the drum-type washer/dryer 1100 of this embodiment, when the water supply valve is opened, water flows in from the water supply hose connection port and is supplied to the outer tub 110 through the detergent storage section. Detergent is stored in advance in the detergent storage unit, and the detergent is put into the outer tub 110 together with the supplied water. The finishing agent is put into the outer tank 110 from the container.

In addition, a drainage pump is provided in the drainage path of the drainage hose provided at the bottom of the outer tub 110, and when the drainage pump is not operated, the water supplied to the outer tub 110 accumulates in the outer tub 110, When the drain pump is operated, the washing water in the outer tub 110 is drained out of the drum-type washing/drying machine 1100 through the drain hose.

A drying unit for drying clothes is provided in the upper part of the housing 11 (outer tub 110). and a blower fan for blowing the air.

In addition, the drying unit generates circulating air during the drying process to dry the laundry. That is, the air blown out from the blower fan of the drying unit is supplied to the drum 111 after being warmed by the downstream heating section. The air supplied to the drum 111 heats the wet laundry accommodated in the drum 111 to remove moisture, and then flows out to the space between the drum 111 and the outer tub 110 through the outer peripheral hole of the drum 111 . , to a duct portion connecting the drying unit and the outer tub 110 .

The air that has flowed into this duct part absorbs moisture from the laundry, increasing the humidity. The air is dehumidified and the dried air after dehumidification is returned to the blower fan of the drying unit.

In this way, the drying unit supplies hot dry air to the wet laundry in the drum 111 to accelerate the drying of the laundry.

Next, the door bellows 115 employed in the drum-type washer/dryer 1100 of this embodiment will be described with reference to FIGS. 17 and 18. FIG. 18 is a diagram showing a state in which an illumination unit (LED light) 117, which will be described later, is removed from FIG. 17. As shown in FIG.

As described above, when the door 12 is closed, the door bellows 115 comes into contact with the door 12 to seal the door 12 and the outer tub 110 in a water-tight manner. 115a, but in this embodiment, the expansion/contraction part 115a of the door bellows 115 extends from a plurality of bends (in this embodiment, two of a first bend 115a1 and a second bend 115a2). It is configured.

Specifically, the expandable portion 115a of the door bellows 115 of this embodiment is composed of at least two vertically arranged first bent portions 115a1 and second bent portions 115a2. The second bent portion 115a2 is positioned below the first bent portion 115a1, and the position 115a2' of the vertex of the second bent portion 115a2 is positioned horizontally from the position of the vertex 115a1' of the first bent portion 115a1. shifted to the right. In other words, the position 115a2' of the vertex of the second bent portion 115a2 is located on the back side (back side) of the position of the vertex 115a1' of the first bent portion 115a1.

The position 115a2' of the vertex of the second bent portion 115a2 may be the same position in the vertical direction as the position of the vertex 115a1' of the first bent portion 115a1.

Further, in this embodiment, a space 116 (see FIG. 18) is formed between the expansion/contraction portion 115a of the door bellows 115 and the housing 11, and the space 116 is provided with a lighting unit (for example, a LED light) 117 is installed.

As described above, according to this embodiment, the expansion/contraction portion 115a of the door bellows 115 is composed of a plurality of bending portions (the first bending portion 115a1 and the second bending portion 115a2). , the bending part can be made smaller than the conventional bent part, and the expansion and contraction part of the door bellows 115 does not rub against other parts during operation, and the door bellows 115 can be prevented from being perforated.

In addition, as in the present embodiment, by connecting a plurality of bent portions (two of the first bent portion 115a1 and the second bent portion 115a2), the original shape can be stretched by the same amount as the original shape. is possible, and the original function of vibration absorption and reduction is not reduced.

In addition, since the expansion/contraction portion 115a of the door bellows 115 is composed of a plurality of bending portions (the first bending portion 115a1 and the second bending portion 115a2), the door bellows 115 can be can be reduced, and a reduction in size (thickness) in the front-rear direction (left-right direction) of the door bellows 115 can be realized.

By making the door bellows 115 thinner, the outer tub 110 can be made larger without changing the size of the casing 11, or conversely, the casing 11 can be made thinner without changing the size of the outer tub 110. .

In addition, a space 116 is secured between the housing 11 side and the door bellows 115 by reducing the gap G (see FIG. 18) between the housing 11 and the door bellows 115 without changing the size of the door bellows 115. A lighting unit 117 such as an LED lamp for illuminating the inside of the outer tank 110 can be mounted in this space 116 .

In addition, the first bent portion 115a1 and the second bent portion 115a2 of the expansion/contraction portion 115a of the door bellows 115 are portions where lint and the like generated during operation tend to accumulate. As a result, it can be expected that the amount of lint remaining there is reduced.

That is, when there is one bent portion in the conventional art, since the pocket portion formed by the curved surface becomes large, the amount of lint accumulated in the pocket portion increases. 115a is composed of a plurality of bent portions (two of a first bent portion 115a1 and a second bent portion 115a2). It can be expected that the amount of lint remaining in the lint will be reduced compared to the conventional method.

It should be noted that the present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments have been described in detail to facilitate understanding of the present invention, and are not necessarily limited to those having all the described configurations. Also, it is possible to replace part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Moreover, it is possible to add, delete, or replace a part of the configuration of each embodiment with another configuration.

DESCRIPTION OF SYMBOLS 1... Drum type washing dryer, 3... Outer tub, 3b... Outer tub cover, 3s... Opening, 4... Washing tub, 25... Door glass, 40... Duct nozzle, 41... Suction opening, 42... Main outlet, 43... Drying channel, 50... Blower cover, 52... Secondary outlet, 53... Side of washing tub, 54... Upper outlet, 55... Middle outlet, 56... Lower outlet, 57... Door glass side, 58... Inside Blower cover rib 59 Outer blower cover rib 61 Inner outer tank cover rib 62 Outer outer tank cover rib 70 Bellows 71 Concave portion 72 Convex portion 73 Narrow portion A Dry wind O Opening center of 3s

Claims

an outer tub having an opening for loading and unloading laundry, and including an outer tub main body and an outer tub cover; a washing tub that is rotatably supported in the outer tub, is driven to rotate by a motor, and accommodates the laundry; A washing and drying machine comprising: a door that opens and closes an opening of the outer tub; and a bellows that is provided at the opening of the outer tub and has a recess recessed from the outer tub side toward the door side. There is
The washer/dryer, wherein the outer tub has a main outlet for blowing air into the washing tub and a secondary outlet for blowing air toward the concave portion of the bellows.
The washing and drying machine according to claim 1,
The washer/dryer, wherein the opening of the sub-discharge port is formed so that the opening on the side of the washing tub is larger than the opening on the side of the door.
The washing and drying machine according to claim 1,
A plurality of the sub-discharge ports are provided side by side in the circumferential direction,
A washing and drying machine according to claim 1, wherein an interval between openings of the plurality of sub-discharge ports adjacent in a circumferential direction is formed so as to be wider on the door side than on the washing tub side.
The washing and drying machine according to claim 1,
The washer/dryer according to claim 1, wherein the outer tub includes a guide portion projecting from the outer tub side toward the door side and guiding air discharged from the sub-discharge port to the recessed portion.
The washing and drying machine according to claim 4,
The bellows is formed with a plurality of protrusions that sandwich the recesses and protrude from the door side toward the outer tank side as viewed from the outer tank side,
The washer/dryer, wherein a plurality of the guide portions are provided so as to face the plurality of protrusions.
In claim 5,
The washing/drying machine, wherein the concave portion and the convex portion are formed along the entire circumference of the bellows.
In claim 6,
The washer/dryer, wherein the guide part is formed along the entire circumference of the outer tub.
A housing, an outer tub provided in the housing, a drum provided with an inlet inserted into the outer tub for loading laundry, a driving device for rotating the drum, and loading the laundry. A door that is openable and closable at the inlet, and a door bellows that contacts the door and seals the door and the outer tank in a watertight manner when the door is closed, wherein the door bellows: A drum-type washing and drying machine having an elastic part that expands and contracts according to the movement of the outer tub,
The drum-type washer/dryer, wherein the expansion/contraction portion of the door bellows is composed of a plurality of bending portions.
The drum-type washing and drying machine according to claim 8,
The expansion and contraction part of the door bellows is composed of at least two first bending parts and second bending parts arranged in the vertical direction, and the second bending part is positioned below the first bending part. and the position of the apex of the second bent portion is the same in the vertical direction as the position of the apex of the first bent portion, or is more horizontally than the position of the apex of the first bent portion. A drum-type washing and drying machine characterized in that the direction is deviated to the right.
The drum-type washing and drying machine according to claim 9,
A drum-type washing and drying machine, wherein a space is formed between the expandable portion of the door bellows and the housing, and a lighting unit for illuminating the inside of the outer tub is installed in the space.
The drum-type washing and drying machine according to claim 10,
The drum-type washing and drying machine, wherein the lighting unit is an LED light.