CN117242218A - Washing and drying machine - Google Patents

Abstract

The invention aims to reduce branch air quantity and inhibit lint from adhering to a corrugated pipe. The washing dryer of the invention comprises: an outer tub (3) provided with an opening (3 s) for taking out and putting in laundry, and provided with an outer tub main body (3 a) and an outer tub cover (3 b); a washing tank (4) rotatably supported in the outer tank (3), driven by a motor to rotate, and accommodating laundry; a door glass (25) that opens and closes the opening (3 s) of the outer tank (3); and a bellows (70) which is provided in the opening (3 s) of the outer groove (3) and which has a concave portion (71) recessed from the outer groove (3) side toward the door glass (25) side. The outer tank (3) is provided with a main outlet (42) for discharging wind into the washing tank (4) and a sub outlet (52) for discharging wind toward the concave part (71) of the bellows (70).

Description

Washing and drying machine

Technical Field

The invention relates to a washing dryer.

Background

In a drum type washing and drying machine, as a flow path structure for preventing lint (thread ends) from accumulating in a space between a door glass and a bellows, for example, techniques described in patent document 1 and patent document 2 have been proposed.

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open No. 2020-31693

Patent document 2: japanese patent application laid-open No. 2019-97720

Disclosure of Invention

Problems to be solved by the invention

The invention described in patent document 1 describes a flow path structure in which a nozzle for blowing air toward between a door glass and a bellows is provided in an outer tank cover. However, the flow path described in patent document 1 needs to be provided with a flow path independent of a flow path for drying laundry, and has a problem that the structure becomes complicated.

The invention described in patent document 2 describes a flow path structure in which a wind of a flow path for drying clothes is branched and blown toward door glass and bellows. However, in the flow path structure described in patent document 2, the air is blown only to a part of the bellows, and is not blown to the bent structure portion where lint is easily accumulated, and the effect of preventing accumulation of lint is insufficient.

The present invention aims to provide a washing dryer which solves the problems, reduces branch air quantity and inhibits lint from adhering to a corrugated pipe.

Means for solving the problems

In order to achieve the above object, a washing dryer of the present invention comprises: an outer tank having an opening for taking out and putting in the laundry, and having an outer tank main body and an outer tank cover; a washing tank rotatably supported in the outer tank, driven to rotate by a motor, and accommodating laundry; a door for opening and closing the opening of the outer groove; and a bellows provided in an opening of the outer tub, the bellows having a concave portion recessed from the outer tub toward the door, wherein the outer tub includes a main discharge port for discharging air into the washing tub and a sub discharge port for discharging air toward the concave portion of the bellows.

The effects of the invention are as follows.

According to the present invention, it is possible to provide a washing and drying machine that reduces the branching air quantity and suppresses the adhesion of lint to the bellows.

Drawings

Fig. 1 is an exploded perspective view of a drum type washing and drying machine according to an embodiment of the present invention.

Fig. 2 is an external perspective view of a drum type washing and drying machine according to an embodiment of the present invention.

Fig. 3 is a perspective view of the outer tub cover 3b according to the embodiment of the present invention, as seen from the rear side of the drum type washing dryer 1.

Fig. 4 is a front view of the tub cover 3b according to the embodiment of the present invention as seen from the front side of the drum type washing dryer 1.

Fig. 5 is an enlarged view of the periphery of the channel nozzle 40 of fig. 4.

Fig. 6 is a view of the blower cover 50 of the embodiment of the present invention as seen from the rear side of the drum type washing dryer 1.

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 washing and drying machine 1.

Fig. 8 is a perspective view of fig. 6.

Fig. 9 is a perspective view of fig. 7.

Fig. 10 is an exploded perspective view of the outer tub cover 3b, the bellows 70, and the 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 according to the embodiment of the present invention when assembled.

Fig. 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 housing of fig. 12.

Fig. 14 is an external perspective view showing a drum type washing and drying machine of embodiment 1 of the present invention in a state where a door is opened.

Fig. 15 is a front view showing a drum type washing and drying machine of embodiment 1 of the present invention in a state where a door is opened.

Fig. 16 is a sectional view of the internal structure of the drum type washing and drying machine of embodiment 1 of the present invention as seen from the side in a state where the door is opened.

Fig. 17 is an enlarged view of a portion a of fig. 16.

Fig. 18 is a view showing a state after the lighting unit (LED lamp) is removed from fig. 17.

Detailed Description

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same components, and the same description will not be repeated.

The various components of the present invention need not necessarily be independent of each other, and it is permissible that one component is constituted by a plurality of members, a plurality of components are constituted by one member, a certain component is a part of other components, a part of a certain component is overlapped with a part of other components, and the like.

Fig. 1 is an exploded perspective view of a drum type washing and drying machine according to an embodiment of the present invention. In the present embodiment, the main board unit for controlling the washing machine, circulation means (piping and pump) for circulating the washing water, and drying means and piping for circulating the drying air for drying the object (laundry) are omitted.

As shown in fig. 1, the drum-type washing and drying machine 1 includes an outer tub 3 elastically supported and storing water, a washing tub 4 (rotary drum) rotatably supported in the outer tub 3 and driven to rotate by a motor, and a casing 10 housing the outer tub 3 and the washing tub 4.

The outer tank 3 is formed in a cylindrical shape from a synthetic resin, and a washing tank 4 is coaxially provided therein. The outer tank 3 is composed of a cylindrical outer tank body 3a having an opening 3s and having a bottom, and an outer tank cover 3b attached to the front surface of the outer tank body 3a and having an opening. A bellows 70 made of rubber (see fig. 10) is attached to the opening 3s of the outer tank 3 (outer tank cover 3 b), and the door glass 25 (door) is closed to seal the outer tank 3. The outer groove 3 is elastically supported via a damper 5.

The washing tub 4 is a cylindrical washing/dehydrating tub rotatably supported, and has a plurality of through holes 4a formed in an outer peripheral wall thereof for water passage and ventilation, and an opening 4b formed in a front end surface thereof for taking out and putting in laundry. A fluid balancer (not shown) that rotates integrally with the washing tub 4 is provided on the outer peripheral side of the opening 4b. Further, a lifter 4c for lifting the laundry during the washing operation and the drying operation is provided on the inner peripheral wall of the washing tub 4.

The case 10 has a front panel (front plate) 11 disposed on the front surface and side panels (side plates) 14A and 14B disposed on the left and right side surfaces by press working or the like on a metal plate (metal, color steel plate). The case 10 is formed by press working a metal plate or the like to have a back panel (back plate) 16 formed in a substantially "コ" shape and disposed on the back surface in a plan view, a base 17 disposed on the bottom side of the outer tub 3, and an upper surface panel (upper plate, top panel) 18 disposed above the outer tub 3.

The front panel 11 includes a front upper panel 12 disposed at an upper portion of the front surface and a front lower panel 13 disposed at a lower portion of the front surface. The front upper panel 12 is formed of a single metal plate, and has a flat portion 12a facing the front side and curved portions 12b and 12c curved on the left and right sides of the flat portion 12 a. The front lower panel 13 is formed of one metal plate, is formed shorter in the up-down direction than the front upper panel 12, and has a flat portion 13a facing the front side and curved portions 13b, 13c curved on the left and right sides of the flat portion 13 a.

The bent portions 12b, 12c are formed to have the same bent shape from the upper end toward the lower end of the front upper panel 12. The bent portions 13b and 13c are formed to have the same bent shape from the upper end toward the lower end of the front lower panel 13. The bent portions 12b and 12c and the bent portions 13b and 13c are formed in the same bent shape. Thus, when the front upper panel 12 and the front lower panel 13 are vertically overlapped, 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 configured to be flush with each other.

A door glass 25 is attached to the flat portion 12a of the front upper panel 12 via a hinge. A cover 13d for taking out and putting in a filter member of a thread end filter, not shown, is attached to the flat portion 13a of the front lower panel 13.

The side panel 14A is formed by press working a metal plate or the like, and is formed to have the same height as the front panel 11, and a curved portion 14A that is curved inward is formed at the rear end of the side panel 14A. The curved portion 14a is formed to have the same curved shape from the upper end toward the lower end. The side panel 14A is formed with a plurality of upper and lower portions with a handle portion 14b for use in transportation and a plurality of reinforcing recesses 14c.

The side panel 14B is formed by press working a metal plate or the like, and has a shape symmetrical to the side panel 14A, and the curved portion 14A, the grip portion 14B, and the recess 14c are formed in the same manner as the curved portion 14A, the grip portion 14B, and the recess 14c of the side panel 14A.

The rear panel 16 is formed by press working a metal plate or the like, and is configured to include a rear upper panel 16A provided on the upper portion of the rear surface and a rear lower panel 16B provided from the center to the bottom of the rear surface. The rear upper panel 16A and the rear lower panel 16B are formed with bent portions 16A and 16B at both left and right ends, which are bent toward the side panels 14A and 14B.

The base 17 is made of, for example, synthetic resin, and is reinforced by forming ribs in a square shape on the inner side. The lower ends of the side panels 14A and 14B are fixed to the base 17 by screws or the like.

The upper panel 18 is formed by molding synthetic resin, for example, and is formed in a substantially rectangular shape in a plan view. The upper panel 18 is formed in a single plate shape, and is configured to close an upper opening formed by connecting the front panel 11, the side panels 14A, 14B, and the rear panel 16.

The upper panel 18 has a detergent dispenser 20 mounted on the front left side in the front-rear direction, and an operation panel 22 mounted on the front right side.

The case 10 is reinforced by a front upper reinforcing plate 31, a front lower reinforcing plate 32, an upper reinforcing plate 35, and an upper connecting reinforcing portion 36.

The front upper reinforcing plate 31 is provided to the side panels 14A and 14B, and connects the upper ends of the front surfaces of the side panels 14A and 14B to each other. That is, the front upper reinforcing plate 31 is formed by press working or the like on a metal plate, and includes a plate portion 31a located on the front surface and extending straight, and bent portions 31b and 31c formed by bending both left and right ends of the plate portion 31a toward the outer tub 3. A cutout 31d is formed in the plate 31a so that the plate 31a and the opening 4b do not overlap in the front-rear direction.

The front lower reinforcing plate 32 is provided to the side panels 14A and 14B, and connects the lower portions of the front surfaces of the side panels 14A and 14B to each other. That is, the front lower reinforcing plate 32 is formed by press working or the like on a metal plate, and includes a plate portion 32a located on the front surface and extending straight, and bent portions 32b and 32c formed by bending both left and right ends of the plate portion 32a toward the outer tub 3. A cutout 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.

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

The upper reinforcing plate 35 is provided on the side panels 14A and 14B, and connects the upper edges of the side panels 14A and 14B to each other. That is, the upper reinforcing plate 35 is formed by press working or the like on a metal plate, and includes a plate portion 35a located on the upper surface and extending linearly, and bent portions 35b and 35c formed by bending both left and right ends of the plate portion 35a toward the outer tub 3. The mounting portion of the plate portion 35a for mounting a main board unit, not shown, is formed by bending a part of the plate portion 35a into a concave shape.

The upper connection reinforcement 36 connects the upper reinforcement plate 35 and the back panel 16. The upper connection reinforcement 36 is formed of synthetic resin, and the upper reinforcement plate 35 and the back panel 16 are coupled via screws, not shown. The upper connection reinforcing portion 36 is disposed so as to extend in the front-rear direction and is located at the center in the left-right direction.

A water supply unit (not shown), a drying filter unit 37, and the like are attached to the left and right of the upper connection reinforcement 36. The water supply means (not shown) is a detergent water supply solenoid valve, a pump for drawing bath water, or the like connected to a water supply pipe (not shown), a water supply pipe connection port 18f (see fig. 2), and a bath water connection port 18g (see fig. 2).

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 bent portion 12b of the front upper panel 12 and the bent portion 13b of the front lower panel 13 are formed to be bent from the right end position of the door glass 25 toward the side panel 14A. The bent portion 12c of the front upper panel 12 and the bent portion 13c of the front lower panel 13 are formed to be bent 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 the present embodiment, the front panel 11 has a shape that is greatly curved from the position of the width of the door glass 25 toward the side panels 14A and 14B (toward the left and right).

The upper panel 18 has a shape capable of closing an upper 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. The outer peripheral edge of the upper panel 18 is configured such that the upper edge of the front panel 11, the upper edge of the side panel 14A, the upper edge of the side panel 14B (see fig. 1), and the upper edge of the rear panel 16 overlap.

The drum-type washing and drying machine 1 further includes an air blowing unit (not shown) below the drying and filtering unit 37. The blower unit is composed of a fan motor (not shown) for driving, an impeller (not shown), and a fan housing (not shown). A fan heater (not shown) is incorporated in the fan housing, and the fan heater (not shown) heats air sent from the impeller to generate a drying 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, as seen from the rear side of the drum type washing dryer 1. The outer tub cover 3b has a duct nozzle 40 for guiding the drying air a generated by the blower unit into the washing tub 4 (see fig. 1). The duct nozzle 40 and the blower cover 50 together form a drying flow path 43, and the duct nozzle 40 includes a suction opening 41 as an inlet of the drying air a generated by the blower unit and a main ejection opening 42 as an outlet of the drying air a.

Fig. 4 is a front view of the tub cover 3b according to the embodiment of the present invention as seen from the front side of the drum type washing dryer 1. Fig. 5 is an enlarged view of the periphery of the channel nozzle 40 of fig. 4. The duct nozzle 40 is provided with a blower cover 50 for branching the drying air a toward the door glass 25 side (front side of the drum-type washing and drying machine 1), and a drying flow path 43 (see fig. 3) is formed. The blower cover 50 is provided with a sub-outlet 52, and the drying air a passing through the drying passage 43 can be branched in the door glass 25 direction by flowing through the sub-outlet 52. The sub-ejection port 52 is constituted by an upper-layer ejection port 54, a middle-layer ejection port 55, and a lower-layer ejection port 56 from the side closer to the suction opening 41 of the passage nozzle 40.

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

When the center O of the opening 3s is set as a reference on the door glass 25 side, the blower cover 50 has an inner blower cover rib 58 having an arcuate projection shape provided on the inner side and an outer blower cover rib 59 having an arcuate projection shape provided on the outer side.

When the center of the opening 3s is set as a reference on the door glass 25 side, the outer tub cover 3b includes an inner outer tub cover rib 61 having an arcuate projection shape provided on the inner side and an outer tub cover rib 62 having an arcuate projection shape provided on the outer side.

The inner blower cover rib 58 and the inner outer tub cover rib 61 are connected to each other and formed on the same circular arc, and collectively have a protruding shape formed by one circular arc. Similarly, the outer blower cover rib 59 and the outer duct cover rib 62 are connected to each other to form the same circular arc shape, and together form a protruding shape formed by one circular arc. That is, the inner blower cover rib 58 and the inner outer tub cover rib 61, the outer blower cover rib 59, and the outer tub cover rib 62 are formed over the entire circumference of the outer tub 3, and function as guide portions for guiding the wind ejected from the sub ejection port 52 to the concave portions 71 (fig. 13) formed over the entire circumference of the bellows 70. With the above-described protruding shape, the branched drying air a is guided to the flow hole 63 without being spread to other portions.

Fig. 6 is a view of the blower cover 50 of the embodiment of the present invention as seen from the rear side of the drum type washing dryer 1. 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 washing and drying machine 1. Fig. 8 is a perspective view of fig. 6. Fig. 9 is a perspective view of fig. 7.

The blower cover 50 has a washing tub side surface 53 forming the drying flow path 43 and a door glass side surface 57 as a back side surface of the washing tub side surface 53. The washing tub side 53 has a sub-discharge port 52, and the sub-discharge port 52 is a through hole extending from the washing tub side 53 to the door glass side 57. The sub-discharge port 52 is formed of six through-holes, and is formed of a through-hole of the upper layer discharge port 54, the middle layer discharge port 55, and the lower layer discharge port 56 from the side closer to the suction opening 41 of the channel nozzle 40. The upper layer discharge port 54, the middle layer discharge port 55, and the lower layer discharge port 56 are each arranged in a plurality in the circumferential direction.

The upper layer discharge port 54 and the middle layer discharge port 55 are formed such that the opening of the washing tub side surface 53 is larger than the opening of the door glass side surface 57. That is, the opening is provided larger on the inflow side than on the ejection side of the drying air a. Thus, when the drying air a flows through the upper layer discharge port 54 and the middle layer discharge port 55, the occurrence of peeling of the flow is suppressed.

Further, the gap between the openings of the upper-layer discharge ports 54 adjacent to each other in the circumferential direction is formed so that the door glass side surface 57 is wider than the washing tub side surface 53. Similarly, the gap between the openings of the adjacent middle-layer discharge ports 55 is formed so that the door glass side surface 57 is wider than the washing tub side surface 53. As a result, the branched drying air a turns in the circumferential direction, and the drying air a easily flows over the entire circumference of the door glass 25 and the bellows 70 (see fig. 10).

In the present embodiment, the sub-discharge ports 52 are provided with two openings in each layer, but in the case where the positions where lint is deposited are not the entire circumference of the door glass 25 and the bellows 70, but a part of them, one opening may be provided in each layer. In this case, the lint accumulation can be prevented with a smaller air volume. However, since the lint is often deposited over the entire circumference, it is preferable to provide a plurality of openings in each layer and flow the branching flow over the entire circumference as in the present embodiment.

The door glass side surface 57 has an inner air supply cover rib 58 having an arc-shaped projection shape and provided between the lower layer discharge port 56 and the middle layer discharge port 55, and an outer air supply cover rib 59 having an arc-shaped projection shape and provided between the middle layer discharge port 55 and the upper layer discharge port 54. The inner air-blowing cover rib 58 and the outer air-blowing cover rib 59 protrude toward the door glass 25 side.

Fig. 10 is an exploded perspective view of the outer tub cover 3b, the bellows 70, and the 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 according to the embodiment of the present invention when assembled. Fig. 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 housing of fig. 12.

The bellows 70 is an annular rubber member, and is provided between the outer tub cover 3b and the door glass 25 so as not to allow fluid to flow out of the drum-type washing dryer 1, thereby sealing the same.

The bellows 70 has a bellows structure so as not to transmit displacement caused by sinking of the outer tank 3 and vibration of the outer tank 3 to the case. With this bellows 70, the bellows has a convex portion 72 closer to the outer tank cover 3b and a concave portion 71 farther from the outer tank cover 3b. That is, the concave portion 71 is formed to be concave from the outer groove 3 side toward the door glass 25 side, and the convex portion 72 is formed to protrude from the door glass 25 side toward the outer groove 3 side when viewed from the outer groove 3 side. The protruding portions 72 are formed over the entire circumference of the bellows 70, and a plurality of protruding portions are formed radially across the recessed portions 71.

The inner blower cover rib 58, the outer blower cover rib 59, the inner outer tub cover rib 61, and the outer tub cover rib 62 are provided so as to face the plurality of protruding portions 72 of the bellows 70, respectively. This shortens the distance between the protruding portion 72 and the outer casing 3b, and guides the wind ejected from the sub-ejection port 52 to the recessed portion 71.

In addition, the door glass 25 has a concave shape when viewed from the front side of the drum-type washing and drying machine 1, and a narrow portion 73 is formed around the portion contacting the bellows 70.

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

In the present embodiment, the blower cover 50 is configured as another member that is detachable from the outer casing 3b, but may be integrally formed with the outer casing 3b. In this case, the number of components can be reduced, and the production cost can be reduced.

The effect of the present structure will be described with reference to fig. 13. During the drying operation, if the laundry in the washing tub 4 is agitated by the rotation of the washing tub, the laundry rubs against each other, and a large amount of lint is generated. The lint is easily accumulated in a region where the flow of the space in the tank stagnates. In particular, the recess 71 of the bellows 70 and the narrow portion 73 of the door glass 25 have a relatively narrow space, and are areas where the flow is likely to stagnate, and lint is likely to accumulate.

A part of the drying air a flowing through the drying flow path 43 branches from the sub-outlet 52 of the blower cover 50, but at this time, the sub-outlets 52 (the upper-layer outlet 54, the middle-layer outlet 55, and the lower-layer outlet 56) are provided at positions corresponding to the concave portion 71 and the narrow portion 73, respectively, so that the branched flow of the drying air a flows toward the concave portion 71 and the narrow portion 73.

By flowing the drying air a into the concave portion 71 and the narrow portion 73, which are areas where the flow is likely to stagnate and lint is likely to accumulate, stagnation of the flow can be reduced, and lint accumulation during the drying operation can be prevented.

In the present embodiment, since there are two concave portions 71 and one narrow portion 73, the sub-ejection port 52 is constituted by three layers of the upper layer ejection port 54, the middle layer ejection port 55, and the lower layer ejection port 56, but for example, in the case where there is one concave portion 71 and one narrow portion 73, the sub-ejection port 52 may be constituted by two layers of the ejection port corresponding to the concave portion 71 and the ejection port corresponding to the narrow portion 73, respectively. In this case, the lint accumulation can be prevented with a smaller air volume.

The inner blower cover rib 58 and the outer blower cover rib 59 are provided at positions corresponding to the protruding portions 72, respectively, and form regions 74 having a relatively short distance from the protruding portions 72. This suppresses the branched flow from the sub-discharge port 52 from flowing through the region 74 and diffusing to other portions, and can guide the flow to the concave portion 71 with a small amount of air.

The upper layer discharge port 54 and the middle layer discharge port 55 are formed so that the opening on the drying flow path 43 side is larger than the opening on the door glass 25 side. Thus, when the drying air a flows through the upper layer discharge port 54 and the middle layer discharge port 55, peeling of the flow is suppressed in the through hole, and the flow is easily guided to the concave portion 71 of the bellows 70.

The interval between the openings of the upper layer discharge port 54 and the middle layer discharge port 55 on the door glass 25 side is set to be wider than the interval between the openings of the drying flow path 43 side. Thus, the branched drying air a is turned circumferentially, and the drying air a easily flows to the entire circumference of the door glass 25 and the bellows 70.

Further, the inner blower cover rib 58, the outer blower cover rib 59, the inner outer tub cover rib 61, and the outer tub cover rib 62 form a region 74 having a relatively short distance from the protruding portion 72 over substantially the entire circumference. This can suppress the spread of the branched flow passing region 74 guided from the sub-discharge port 52 to the concave portion 71 to other portions, and can suppress the accumulation of lint in the concave portion 71 over the entire circumference with a small amount of air.

In the present embodiment, the protrusion shapes formed by the inner blower shroud rib 58 and the inner outer tub shroud rib 61, and the outer blower shroud rib 59 and the outer tub shroud rib 62 are perfect circles formed by one circular arc, but since the shape of the convex portion 72 of the bellows 70 is also perfect circles, for example, when the convex portion 72 is elliptical, the protrusion shape is also preferably elliptical. Thus, the region 74 having a relatively short distance from the convex portion 72 can be provided on the entire circumference in accordance with the shape of the convex portion 72.

In general, the entire periphery of the laundry inlet on the front surface of the washing machine is covered with a rubber door bellows connecting the casing and the outer tub, and the door bellows includes a bellows portion having one bending portion between the casing (fixed side) and the outer tub (movable side), and the bellows portion expands and contracts in accordance with the movement of the outer tub, thereby absorbing and reducing vibration during operation. However, if the outer tub is to be enlarged while maintaining the size of the cabinet substantially unchanged, the space allocated to the door bellows in the front-rear direction of the washing machine can be reduced.

In this case, if the front-rear dimension of the door bellows is reduced in the case of the telescopic shape having one bent portion in the patent documents (japanese patent application laid-open publication No. 2015-19840 and japanese patent application laid-open publication No. 2006-218195), there is a possibility that the telescopic portion of the door bellows is repeatedly rubbed against other portions during operation, and a problem of a hole occurs in the door bellows.

The present invention has been made in view of the above-described aspects, and an object thereof is to provide a drum type washing and drying machine in which a bellows portion of a door bellows of the drum type washing and drying machine does not rub against other portions during operation, and in which occurrence of holes in the bellows portion can be prevented.

In order to achieve the above object, a drum type washing and drying machine of the present invention comprises: a case; an outer tank provided in the case; a drum inserted in the outer tub and having an input port for inputting laundry; a driving device for driving the drum to rotate; a door which is provided in an openable and closable manner at the input port into which the laundry is input; and a door bellows which, when the door is closed, is in contact with the door to seal the door and the outer tub watertight, wherein the door bellows has a telescopic part which stretches and contracts in cooperation with the movement of the outer tub, and wherein the telescopic part of the door bellows is constituted by a plurality of buckling parts.

Specifically, the expansion and contraction portion of the door bellows is configured by at least two first buckling portions and a second buckling portion arranged in the up-down direction, the second buckling portion being arranged below the first buckling portion, and the position of the apex of the second buckling portion being located at the same position in the up-down direction as the position of the apex of the first buckling portion or at a position closer to the outer groove than the position of the apex of the first buckling portion.

Thus, the expansion and contraction part of the door bellows will not rub with other parts during operation, and the occurrence of holes in the door bellows can be prevented.

Fig. 14 is an external perspective view showing a drum type washing and drying machine 1100 of the embodiment of the present invention in a state where a door 12 is opened, fig. 15 is a front view showing the drum type washing and drying machine 1100 of the embodiment of the present invention in a state where the door 12 is opened, fig. 16 is a cross-sectional view of an internal structure of the drum type washing and drying machine 1100 of the embodiment of the present invention seen from a side in a state where the door 12 is opened, and fig. 17 is an enlarged view of a portion a of fig. 16.

Hereinafter, the structure of the drum type washing and drying machine 1100 of the present embodiment will be described with reference to fig. 14, 15, 16, and 17.

In fig. 14, the casing 11 constituting the outside of the drum-type washing and drying machine 1100 of the present embodiment is constituted by: the case body 11b, both side surfaces and back surfaces of which are formed of an integral steel plate; a bottom plate (not shown) disposed below the case body 11 b; a front surface cover 11a covering the front surface of the case main body 11 b; and an upper surface cover 11c disposed on the upper portion. A door 12 is arranged on the front surface of the case 11 to be openable and closable.

A water supply pipe connection port for supplying water from a faucet to the drum-type washing and drying machine 1100 is provided at an upper portion of the rear surface of the case 11. The door 12 is supported so as to be openable and closable by a hinge provided to the front cover 11a, and the door 12 is closed by releasing the lock mechanism by pulling the door opening handle 120a to open the door 12 toward the front side and by pressing the door 12 against the front cover 11a to lock the door.

The front cover 11a has a circular opening for taking out and putting in clothes, concentric with the opening of the outer tub 110.

The door 12 is provided with an operation portion configured with an operation switch or the like, and the operation portion is a glass touch panel type and is electrically connected to a control unit provided in the interior of the case 11. A drain pipe for draining water is attached to the back surface of the case 11.

The drum type washing and drying machine 1100 of the present embodiment includes an outer tub 110 for storing water in the interior of the cabinet 11, and a drum 111 for storing laundry is inserted into the outer tub 110. The outer tub 110 is suspended from the case 11 via a spring, so that the center of gravity of the outer tub 110 is suspended from the left and right, and the lower portion of the outer tub 110 is supported by a vibration-proof member 112 fixed to the case 11.

Further, a rotary shaft 14 connected to the drum 111 is provided behind the outer tub 110, a pulley 150 is connected to the rotary shaft 14, and a motor 113 is connected to the pulley 150 via a belt 160. The motor 113 drives the drum 111 to rotate via the belt 160, the pulley 150, and the rotation shaft 14.

In addition, the control unit controls the rotation number of the motor 113, and the control unit performs acquisition of a sensor value of a vibration sensor provided in the drum type washing and drying machine 1100.

In the dehydration step of the drum type washing and drying machine 1100 of the present embodiment, if the vibration amplitude of the outer tub 110 detected by the vibration sensor exceeds a predetermined threshold value due to unbalance of laundry put into the drum 111, the dehydration step is temporarily stopped, the drum 111 is rotated forward and backward, and the dehydration step is performed again after the unbalance of laundry is corrected. When the motor 113 is driven, the drum 111 is driven to rotate in both forward and reverse directions.

Further, the inner peripheral surface of the drum 111 includes a plurality of dewatering holes 111a for discharging the washing water in the drum 111 to the outer tub 110, and a plurality of lifters 114 arranged at intervals in the circumferential direction of the drum 111 for lifting the laundry put into the drum 111. The lifters 114 are provided to extend in the front-rear direction of the drum 111.

The opening of the outer tub 110 is connected to the inlet of the case 11 via a door bellows 115 having a telescopic portion 115a that stretches and contracts in accordance with the movement of the outer tub 110, and the door bellows 115 is formed of an annular elastic member, and the door 12 is closed to seal the drum 111. That is, the door bellows 115 is in contact with the door 12 when the door 12 is closed to watertight seal the door 12 and the outer tub 110, and has a telescopic portion 115a that expands and contracts in cooperation with the movement of the outer tub 110.

The inlet of the casing 11, the opening of the outer tub 110, and the opening of the drum 111 are communicated, and the door 12 is opened to allow laundry to be taken out of the drum 111.

A water supply unit having a water supply valve is provided at the upper portion of the housing 11 and at the front portion of the water supply pipe connection port.

The water supply unit includes a detergent storage portion for storing a detergent and a softener storage portion for storing a softener, and the detergent storage portion and the softener storage portion are connected to a water supply valve via a pipe. The water supply unit can be pulled out to the front side, and in the pulled-out state, the user puts the detergent and the softener into the detergent accommodating part and the softener accommodating part.

When the water supply valve is opened during washing in the drum-type washing and drying machine 1100 of the present embodiment, water flows in from the water supply pipe connection port and is supplied to the outer tub 110 via the detergent storage part. In the drum-type washing and drying machine 1100, detergent is placed in advance in the detergent storage part, and the detergent is put into the outer tub 110 together with the supplied water, and similarly, softener is put into the outer tub 110 together with the supplied water from the softener storage part during rinsing.

The drain path of the drain pipe provided at the lower portion of the outer tub 110 is provided with a drain pump, and when the drain pump is not operated, water supplied to the outer tub 110 is accumulated in the outer tub 110, and when the drain pump is operated, wash water in the outer tub 110 is discharged from the drain pipe to the outside of the drum-type washing dryer 1100.

A drying unit for drying laundry is provided at an upper portion of the casing 11 (the outer tub 110), and the drying unit includes a heating portion provided with a heater for heating air and a blower fan for feeding air to the heating portion.

And, the drying unit generates circulating air during the drying process to dry the washings. That is, the air blown from the blower fan of the drying unit is heated by the downstream heating unit and then supplied to the drum 111. The wind supplied to the drum 111 heats the wet laundry accommodated in the drum 111 to absorb 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, and reaches the duct portion connecting the drying unit and the outer tub 110.

Since the air flowing into the duct portion absorbs moisture from the laundry and has a high humidity, the cooling water is supplied from the upper portion of the duct portion to cool the high-humidity air, thereby condensing the water vapor, dehumidifying the air, and then returning the dehumidified and dried air to the blower fan of the drying unit.

In this way, the drying unit supplies high-temperature drying air to the wet laundry in the drum 111, and promotes drying of the laundry.

Next, a door bellows 115 used in the drum-type washing and drying machine 1100 of the present embodiment will be described with reference to fig. 17 and 18. Fig. 18 is a diagram showing a state in which a lighting unit (LED lamp) 117 described below is removed from fig. 17.

As described above, the door bellows 115 is in contact with the door 12 when the door 12 is closed to seal the door 12 and the outer tub 110 watertight, and has the expansion and contraction portion 115a that expands and contracts in accordance with the movement of the outer tub 110, but in the present embodiment, the expansion and contraction portion 115a of the door bellows 115 is constituted by a plurality of buckling portions (in the present embodiment, two of the first buckling portion 115a1 and the second buckling portion 115a 2).

Specifically, the expansion and contraction portion 115a of the door bellows 115 of the present embodiment is configured by at least two first buckling portions 115a1 and second buckling portions 115a2 arranged in the up-down direction, the second buckling portions 115a2 being arranged below the first buckling portions 115a1, and the position 115a2 'of the apex of the second buckling portions 115a2 being offset to the right side in the horizontal direction from the position of the apex 115a1' of the first buckling portions 115a 1. In other words, the position 115a2 'of the apex of the second buckling portion 115a2 is located on the inner side (back surface side) from the position of the apex 115a1' of the first buckling portion 115a 1.

The position 115a2 'of the apex of the second bending portion 115a2 may be located at the same position in the up-down direction as the position of the apex 115a1' of the first bending portion 115a 1.

In the present embodiment, a space 116 (see fig. 18) is formed between the expansion and contraction portion 115a of the door bellows 115 and the case 11, and a lighting unit (e.g., LED lamp) 117 for lighting the inside of the outer tub 110 is provided in the space 116.

As described above, according to the present embodiment, since the expansion and contraction portion 115a of the door bellows 115 is constituted by a plurality of buckling portions (two of the first buckling portion 115a1 and the second buckling portion 115a 2), miniaturization can be achieved compared to the conventional buckling portions, and the expansion and contraction portion of the door bellows 115 does not rub against other portions during operation, and occurrence of holes in the door bellows 115 can be prevented.

Further, as described in the present embodiment, by connecting the plurality of buckling portions (both the first buckling portion 115a1 and the second buckling portion 115a 2), the same amount of elongation as that of the original shape can be obtained, and the function of absorbing and reducing vibration that is originally provided is not reduced.

Further, by configuring the expansion and contraction portion 115a of the door bellows 115 with a plurality of buckling portions (both the first buckling portion 115a1 and the second buckling portion 115a 2), the size of the door bellows 115 in the front-rear direction (the left-right direction) can be reduced, and downsizing (thinning) of the door bellows 115 in the front-rear direction (the left-right direction) can be achieved.

By reducing the thickness of the door bellows 115, the outer tank 110 can be made larger without changing the size of the tank 11, or conversely, the tank 11 can be made thinner without changing the size of the outer tank 110.

Further, by making the gap G (see fig. 18) between the case 11 and the door bellows 115 smaller than in the conventional structure without changing the size of the door bellows 115, a space 116 can be ensured between the case 11 and the door bellows 115, and an illumination unit 117 such as an LED lamp for illuminating the inside of the outer tub 110 can be mounted in the space 116.

Further, although the first buckling portion 115a1 and the second buckling portion 115a2 of the expansion and contraction portion 115a of the door bellows 115 are portions where the thread ends and the like occur during operation and are easily accumulated, it is expected to reduce the amount of thread ends remaining in the buckling portions by making the buckling portions smaller one by one.

That is, in the case where one conventional buckling portion is provided, the pocket portion formed by the curved surface is enlarged, and therefore the amount of the thread ends accumulated in the pocket portion is increased, but as in the present embodiment, by configuring the expansion and contraction portion 115a of the door bellows 115 by a plurality of buckling portions (two of the first buckling portion 115a1 and the second buckling portion 115a 2), the buckling portions are individually reduced, that is, the pocket portion is reduced, and thus it is possible to expect the amount of the thread ends remaining in the buckling portions to be reduced as compared with the conventional art.

The present invention is not limited to the above-described embodiments, and includes various modifications. For example, the above-described embodiments are described in detail for the purpose of easily understanding the present invention, and are not limited to the configuration in which all the described structures are necessarily provided. Further, a part of the structure of one embodiment may be replaced with the structure of another embodiment, and the structure of another embodiment may be added to the structure of one embodiment. Further, addition, deletion, and substitution of other structures can be performed on a part of the structures of the respective embodiments.

Description of symbols

1-drum washing and drying machine, 3-outer tub, 3 b-outer tub cover, 3 s-opening, 4-washing tub, 25-door glass, 40-channel nozzle, 41-suction opening, 42-main ejection port, 43-drying flow path, 50-air supply cover, 52-auxiliary ejection port, 53-washing tub side, 54-upper ejection port, 55-middle ejection port, 56-lower ejection port, 57-door glass side, 58-inner air supply cover rib, 59-outer air supply cover rib, 61-inner outer tub cover rib, 62-outer tub cover rib, 70-bellows, 71-concave portion, 72-convex portion, 73-narrow portion, a-drying air, O-opening 3s center.

Claims (11)

1. A washing and drying machine is provided with: an outer tank having an opening for taking out and putting in the laundry, and having an outer tank main body and an outer tank cover; a washing tank rotatably supported in the outer tank, driven to rotate by a motor, and accommodating laundry; a door for opening and closing the opening of the outer groove; and a bellows provided in an opening of the outer tub and having a concave portion recessed from the outer tub side toward the door side,

the above-mentioned washing and drying machine is characterized in that,

the outer tank includes a main outlet for discharging air into the washing tank and a sub outlet for discharging air into the recess of the bellows.

2. The washing and drying machine as claimed in claim 1, wherein,

the opening of the sub-discharge port is formed to be larger than the opening of the washing tub side.

3. The washing and drying machine as claimed in claim 1, wherein,

the sub-ejection ports are provided in plurality in a circumferential direction,

the openings in the plurality of sub-outlets adjacent to each other in the circumferential direction are formed at intervals such that the door side is wider than the washing tub side.

4. The washing and drying machine as claimed in claim 1, wherein,

the outer groove includes a guide portion protruding from the outer groove side toward the door side, and guides the wind ejected from the sub-ejection port to the recess.

5. The washing and drying machine as claimed in claim 4, wherein,

the bellows is formed with a plurality of convex portions formed so as to sandwich the concave portion and protruding from the door side toward the outer groove side when viewed from the outer groove side,

the guide portion includes a plurality of guide portions facing the plurality of protruding portions.

6. The washing and drying machine as claimed in claim 5, wherein,

the concave portion and the convex portion are formed over the entire circumference of the bellows.

7. The washing and drying machine as claimed in claim 6, wherein,

the guide portion is formed over the entire circumference of the outer groove.

8. A drum-type washing dryer is provided with: a case; an outer tank provided in the case; a drum inserted in the outer tub and having an input port for inputting laundry; a driving device for driving the drum to rotate; a door which is provided in an openable and closable manner at the input port into which the laundry is input; and a door bellows which, when the door is closed, is in contact with the door to seal the door and the outer tub watertight, the door bellows having a telescopic portion which is telescopic in accordance with the movement of the outer tub,

the drum type washing and drying machine is characterized in that,

the expansion and contraction part of the door bellows is composed of a plurality of buckling parts.

9. The drum type washing and drying machine as claimed in claim 8, wherein,

the expansion and contraction portion of the door bellows is configured by at least two first buckling portions and a second buckling portion arranged in the up-down direction, the second buckling portion is arranged below the first buckling portion, and the position of the peak of the second buckling portion is located at the same position in the up-down direction as the position of the peak of the first buckling portion or is deviated to the right side in the horizontal direction than the position of the peak of the first buckling portion.

10. The drum type washing and drying machine as claimed in claim 9, wherein,

a space is formed between the expansion and contraction part of the door bellows and the box body, and a lighting unit for lighting the outer groove is arranged in the space.

11. The drum type washing and drying machine as claimed in claim 10, wherein,

the lighting unit is an LED lamp.