KR20170142436A - Laundry treating apparatus - Google Patents

Abstract

The present invention relates to a laundry treatment apparatus capable of inhibiting a drum from being pushed to a rear side. According to the present invention, the laundry treatment apparatus comprises: a cabinet having an entry/exit formed therein; a tub having a front opening part corresponding to the entry/exit and fixated inside the cabinet; the drum disposed inside the tub; a drum support unit including a bearing housing connected to a rear end of the tub to support the drum with respect to a base of the cabinet to be able to rotate; a drum driving motor connected to the bearing housing and rotating the drum; and a rear pushing inhibition part to inhibit the drum from being pushed to the rear side. The rear pushing inhibition part includes: a first stopper installed in the bearing housing; and a second stopper disposed in a rear region of the cabinet to be in contact with the first stopper when a preset load is applied to the drum. Accordingly, the drum is inhibited from being pushed to the rear part to prevent clothes from being caught in a front region.

Description

[0001] LAUNDRY TREATING APPARATUS [0002]

The present invention relates to a laundry processing apparatus.

As is well known, the laundry processing apparatus is one type of apparatus for treating (washing) clothing or laundry through a washing process and a rinsing process.

The laundry means not only clothes but also washable articles such as bedclothes such as futons, curtains, stuffed toys and the like.

The laundry processing apparatus is provided with a dehydrating function for removing moisture by rotating the laundry or laundry at a preset speed.

Some of the laundry processing apparatuses may be provided with a drying function for supplying heated laundry to laundry or laundry and drying the laundry.

Some of the laundry processing apparatuses having the washing function and the drying function include a water tank, a circulating flow path for drawing the air of the water tank out of the water tank, treating the air outside the water tank, and then re- And a drying module provided therein.

Some of the drying modules include a heat pump and a circulating fan for promoting the movement of air.

The laundry processing apparatus includes a cabinet, a tub disposed inside the cabinet for receiving the washing water, and a drum provided inside the tub and rotating.

Some of the laundry processing apparatuses are provided with a door for opening and closing the door and a door for opening and closing laundry in and out of the front of the cabinet, and a so-called front rod type door having a front opening corresponding to the door, (front load type) laundry processing device.

The front rod type laundry processing apparatus includes a so-called "fork " type in which a front opening portion of the drum is opened during operation so that laundry in the drum flows out to the outside through a front opening portion of the drum, "Phenomenon occurs.

Damage to the laundry and peripheral components may occur if the snare occurs.

In addition, the laundry (a part of the laundry) flowing out to the outside through the front opening of the drum strikes the surrounding component parts while rotating together with the drum, resulting in striking noise or stunning contact noise.

In consideration of such a problem, a part of the laundry is installed in a lower area of the front opening of the tub so that laundry can be prevented from being caught between the tub and the gasket while the laundry is discharged to the outside of the drum during the washing operation. Prevention device "is disclosed in Korean Patent Laid-Open Publication No. 10-2007-0064000.

However, in the apparatus for preventing the laundry from being jammed in the drum washing machine, the prevention plate is provided in the lower region of the tub, so that the leakage of laundry from the upper portion can not be suppressed.

In addition, since a driving motor for driving the prevention plate is provided, there is a disadvantage that electric power is required.

In addition, a portion of the gasket provided in the front opening portion of the tub is provided with an anti-crease preventing device for tightening and loosening around the gasket, if necessary, to prevent a place where the laundry is caught by a gap between the door glass and the gasket. A device for preventing the jamming of a drum washing machine gasket "is disclosed in Korean Patent Laid-Open Publication No. 10-2006-0004368.

In the apparatus for preventing jamming of the drum type washing machine gasket, it is possible to install the apparatus in a laundry processing apparatus having a gasket connecting an entrance of a cabinet and a front opening of the tub. The tub is fixed to a cabinet, There is a problem that it is difficult to apply the present invention to a laundry processing apparatus in which the distance between the front openings of the drum is varied, i.e., the tub is fixed and the drum is supported so as to be relatively movable.

In addition, in the apparatus for preventing jamming of the drum washing machine gasket, it is required to include a driving device for driving the jamming clamp which is provided so as to be able to tighten and loosen around the gasket, so that the structure is complicated, .

In addition, unlike the laundry processing apparatus in which the tub is fixed to the cabinet and the drum is supported so as to be relatively movable inside the tub, the rear end of the drum There is a problem in that the backward pivoting phenomenon of the drum is added to the specific load amount of the laundry to be introduced into the drum, thereby increasing the phenomenon of the forward region being pinched.

KR 1020070064000 A (2007.06.20. open) KR 1020060004368 A (2006.01.12. open) KR 1020090112186 A (Oct. open)

Accordingly, it is an object of the present invention to provide a laundry processing apparatus capable of suppressing rearward pivoting of a drum.

It is another object of the present invention to provide a laundry processing apparatus capable of suppressing backward pivoting of the drum and suppressing the occurrence of jamming in the front region.

It is still another object of the present invention to provide a laundry processing apparatus capable of selectively suppressing backward pivoting of a drum by selectively acting on a specific load.

In order to achieve the above object, the present invention provides a cabinet comprising: a cabinet having a door formed therein; A tub secured to the inside of the cabinet and having a front opening corresponding to the doorway; A drum disposed inside the tub; A drum supporting unit having a bearing housing connected to a rear end of the tub to support the drum rotatably with respect to the base of the cabinet; A drum driving motor connected to the bearing housing for rotating the drum; And a rear pivot restraining part for restricting rearward pivoting of the drum, wherein the rear pivot restraining part comprises: a first stopper provided on the bearing housing; And a second stopper disposed in a rear region of the cabinet so as to be in contact with the first stopper during a predetermined load of the drum.

In an embodiment, the predetermined load of the drum may be a pull load of the drum.

In one embodiment, the cabinet may include a safety bolt through which a bolt inserted into the bearing housing may be inserted, and a safety cover may be integrally formed on one side of the first stopper to block the bolt hole .

In an embodiment, the first stopper may be configured to have a cross section whose width gradually decreases along the projecting direction.

In an embodiment, the first stopper may have a bottom surface inclined upward along the protruding direction, and the second stopper may have a top surface inclined downward along the protruding direction.

In an embodiment, the upper surface of the second stopper may be inclined so as to be in surface contact with the lower surface of the first stopper.

The drum support unit may include a pair of support brackets extending downward along the radial direction of the bearing housing and extending forwardly, a first support member disposed in front of the support brackets, A second support member disposed at a rear side of the bracket, and a third support member disposed at a lower portion of the bearing housing, wherein the rotation axis of the drum may be arranged to be inclined upward forward.

In one embodiment, a sound absorbing material may be provided on any one or both of mutual contact surfaces of the first stopper and the second stopper.

In one embodiment of the present invention, any one of the first stopper and the second stopper may include a movable projection that can be retreated upon mutual contact and a movable projection supporting portion that supports the movable projection.

In an exemplary embodiment, the movable protrusion may further include an elastic member that exerts an elastic force to protrude.

In an embodiment, a sound absorbing material may be provided on a contact area between the moving projection and the moving projection supporting part.

In an exemplary embodiment, the moving protrusion may further include a buffer member contacting the moving protrusion when the moving protrusion is retracted.

In an exemplary embodiment, the moving protrusion may further include an elastic member that exerts an elastic force so that the moving protrusion protrudes, and a buffer member that contacts the moving protrusion when the moving protrusion retracts.

According to another aspect of the present invention, there is provided a cabinet comprising: a cabinet having an entrance and a door for opening and closing the entrance; A tub secured to the inside of the cabinet and having a front opening corresponding to the doorway; A drum disposed inside the tub, the drum having a front opening protruding forward corresponding to the front opening; A drum supporting unit having a bearing housing connected to a rear end of the tub to support the drum rotatably with respect to the base of the cabinet; A drum driving motor connected to the bearing housing for rotating the drum; Preventing ribs inserted into the front opening of the tub and interposed between the door and the front opening and inserted into the front opening of the drum to guide the laundry into the drum when the drum rotates A front gasket provided thereto; And a rear pivot restraining portion for restricting rearward pivoting of the drum so that the pivot preventing rib is not separated from the drum, wherein the rear pivot restraining portion includes: a first stopper provided on the bearing housing; And a second stopper disposed in a rear area of the cabinet so as to be in contact with the first stopper in a predetermined load of the drum.

In an embodiment, the second stopper may be disposed at a position where the second stopper can contact the first stopper when the drum is full loaded.

In one embodiment of the present invention, the engagement preventing rib is disposed between a front end and a rear end of the front opening portion of the drum, and the to-be-jam preventing rib is provided at an inner front end of the front opening portion of the drum when the first stopper and the second stopper come into contact As shown in FIG.

In an embodiment, the drum supporting unit includes: a pair of support brackets extending downward along the radial direction of the bearing housing and extending forwardly; A first support member disposed in front of each of the support brackets; A second support member disposed behind each of the support brackets; And a third support member disposed at a lower portion of the bearing housing. The drum may be configured such that the rotation axis thereof is inclined upward in the forward direction.

As described above, according to an embodiment of the present invention, a first stopper connected to a rear end (bearing housing) of a drum and a second stopper connected to a rear end of the cabinet so as to be able to contact the first stopper upon a predetermined load of the drum It is possible to suppress the phenomenon that the backward pivoting of the drum is increased at the time of a specific load.

Thereby, the tub can be remarkably suppressed from being incurred in the front region of the drum due to the backward pivoting of the drum in the laundry processing apparatus in such a manner that the tub is fixed to the cabinet and the drum is supported movably relative to the tub.

In particular, in a laundry processing apparatus in which the above-described drum is supported so as to be able to move relative to the tub, it is possible to suppress backward pivoting of the drum, which is weighted at full load of the drum, Generation can be selectively suppressed.

A first stopper is provided at the front opening of the drum. The first stopper is connected to the rear end (bearing housing) of the drum. The first stopper is provided at the rear end of the cabinet so as to be able to contact the first stopper. The provision of the second stopper prevents an increase in the backward pounce at a specific load of the drum and an increase in the posture of the front region of the drum.

In addition, by providing the sound absorbing material in the mutual contact area of the first stopper and the second stopper, it is possible to suppress the occurrence of a shock noise at the time of contacting the supporter.

In addition, by providing the buffer member between the first stopper and the second stopper, the impact force upon contact between the first stopper and the second stopper can be alleviated.

1 is a perspective view of a laundry processing apparatus according to an embodiment of the present invention;
FIG. 2 is a perspective view showing the inside of the laundry processing apparatus of FIG. 1,
FIG. 3 is a perspective view showing a combined state of the tub and the drum supporting unit of FIG. 2,
Fig. 4 is a rear view of the tub of Fig. 3,
Fig. 5 is a rear view of the front tub of Fig. 3,
Fig. 6 is a rear perspective view of the front gasket of Fig. 3,
7 is a cross-sectional view of a water supply portion taken along line VII-VII in FIG. 5,
Figure 8 is a perspective view of the water supply region of Figure 5,
Fig. 9 is a perspective view seen from another direction of the water supply region of Fig. 5,
Fig. 10 is a side view of the tub and drum supporting unit of Fig. 2,
11 is a perspective view of the drum supporting unit of Fig. 10, Fig.
FIG. 12 is a rear perspective view of the bearing housing of FIG. 11,
FIG. 13 is a view showing the positional relationship between the first stopper and the second stopper when the drum of FIG. 2 is not loaded,
FIG. 14 is a view showing the positional relationship between the first stopper and the second stopper when the drum of FIG.
Fig. 15 is a perspective view of the first stopper of Fig. 13,
16 is a perspective view of the second stopper of Fig. 13,
FIG. 17 is a view showing the contact of the first stopper and the second stopper when the drum of FIG. 14 is loaded full,
FIG. 18 is a view showing a change in the distance between the rear end of the drum during full load and the cabinet of the laundry treatment apparatus of FIG. 1;
19 and 20 are modifications of the first stopper and the second stopper of the laundry processing apparatus according to another embodiment of the present invention, respectively.

Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings. In this specification, the same or similar reference numerals are given to the same or similar components in different embodiments, and the description thereof is replaced with the first explanation. As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. In addition, it should be noted that the attached drawings are only for easy understanding of the embodiments disclosed in the present specification, and should not be construed as limiting the technical idea disclosed in the present specification by the attached drawings.

1 and 2, a laundry processing apparatus according to an embodiment of the present invention includes a cabinet 110 having an entrance 112 formed therein; A tub 130 having a front opening corresponding to the entrance 112 and fixed inside the cabinet 110; A drum 170 disposed inside the tub 130; A drum supporting unit 190 having a bearing housing 192 connected to a rear end of the tub 130 to rotatably support the drum 170 with respect to the base of the cabinet 110; A drum driving motor 220 connected to the bearing housing 192 for rotating the drum 170; And a rear pivot restraining part 450 for restricting rearward pivoting of the drum 170. The rear pivot restraining part 450 includes a first stopper 460 provided on the bearing housing 192; And a second stopper 480 disposed in a rear region of the cabinet 110 so as to be in contact with the first stopper 460 in a predetermined load of the drum 170 (see FIG. 10).

The cabinet 110 may be formed in a substantially rectangular parallelepiped shape.

The cabinet 110 is provided with an entrance 112 for allowing laundry to enter and exit the front of the cabinet 110.

A door 115 may be provided on one side of the doorway 112 to open and close the doorway 112.

For example, the door 115 can be pivotally opened and closed about a pivot shaft that is vertically disposed on one side of the entrance 112.

For example, the door 115 may be provided with a sight glass (door glass) so as to observe the interior thereof.

In the cabinet 110, a tub 130 may be provided to receive wash water.

The tub 130 may have, for example, a cylindrical shape with one side opened.

The tub 130 may have a front opening 136 corresponding to the entrance 112.

The tub 130 may be fixed to the cabinet 110, for example.

As a result, the space between the cabinet 110 and the tub 130 can be reduced, and the capacity of the tub 130 (drum 170) can be remarkably increased without increasing the size of the cabinet 110 .

The tub 130 may be fixedly coupled to the front and rear surfaces of the cabinet 110, for example.

For example, the tub 130 may be installed such that its front surface is slightly inclined rearward at a predetermined inclination angle.

A front fixing part 151 may be formed around the front opening 136 of the tub 130 so as to be fixed to the cabinet 110.

Although the front fixing part 151 is illustrated as being three in the present embodiment, this is only an example, and the number of the front fixing parts 151 can be appropriately adjusted.

A rear fixing part 155 may be provided at a rear end of the tub 130 so as to be coupled to a rear surface of the cabinet 110.

The tub 130 includes a front tub 132 having the front opening 136 and a front tub 132 coupled to the rear of the front tub 132 to house the front tub 132 with the front tub 132, And a rear tub 160 which forms the rear tub 160.

The front tub 132 may be embodied as a cylindrical shape having a radially reduced front surface 134 for forming the front opening 136, for example.

The rear tub 160 may be formed in a cylindrical shape such that a front region is formed to be hermetically coupled to the rear of the front tub 132 and a rear region is formed to have a rear opening 162 .

The rear opening portion 162 of the rear tub 160 includes a disc-like turbobac 164 having a reduced outer diameter as compared with the rear opening portion 162, and a rear-side opening portion 162 connecting the turbobac 164 and the rear opening portion 162 And a rear gasket 165 which is provided on the rear side of the rear case.

The rear gasket 165 may be formed of, for example, a waterproof member of a flexible material capable of vibration insulation and hermetically blocking the rear opening portion 162. [

The rear gasket 165 may be formed of, for example, a rubber member.

A drum 170 may be provided in the tub 130.

The drum 170 may have a cylindrical shape with one side opened.

A front opening 173 may be formed in the front region of the drum 170 to correspond to the front opening 136 of the tub 130.

7, the drum 170 is provided with a drum center 174 having a cylindrical shape, a drum 174 disposed at the front end of the drum center 174, A drum front 172 having a front opening 173 of a reduced size as compared with the center 174 and a drum front 172 provided at a rear end of the drum center 174 to form a laundry receiving space therein, And a drum back 176 (see FIG. 14).

The drum 170 may be provided with a plurality of through holes 177 so that the drum 170 can communicate with the inside and outside.

The drum 170 may be provided with a lifter 178 for moving laundry and / or washing water upward.

The drum 170 may be supported by, for example, a drum supporting unit 190. [

The drum support unit 190 includes a bearing housing 192 and a support bracket 195 extending downward from the bearing housing 192 and a bearing housing 192, And a plurality of support members 201 for supporting the support brackets 195.

The bearing housing 192 may be coupled to the rear end of the tub 130.

The bearing housing 192 may be coupled to the turbine back 164.

The support bracket 195 may include, for example, a radial bracket 196 extending radially to the bearing housing 192 and a horizontal bracket 197 extending horizontally from the lower end of the radial bracket 196. [ As shown in FIG.

The radial bracket 196 may be configured as a pair extending downwardly obliquely outwardly in a direction approximately 45 degrees from the bearing housing 192 when viewed from the front.

The horizontal bracket 197 may be formed as a pair of, for example, bent from the lower ends of the respective radial brackets 196 and extending forward in the horizontal direction.

4, each of the plurality of support members 201 includes a pair of first support members 191a and 191b vertically arranged on the front end of the support bracket 195 (horizontal bracket 197) A pair of second support members 205 arranged to be inclined downwardly from the substantially center of the support bracket 195 (horizontal bracket 197) rearwardly and a pair of second support members 205 vertically arranged at approximately the center of the bearing housing 192 And a third support member 207 disposed to extend downward.

Each of the support members 203, 205 and 207 may be configured to include, for example, a spring and a damper, a spring damper, or both.

The bearing housing 192 may be provided with a drum driving motor 220 for rotating the drum 170, for example.

The drum driving motor 220 includes a stator 222 coupled to the bearing housing 192 and a rotor 224 coupled to the rotating shaft of the drum 170 and rotating relative to the stator 222. [ (See Fig. 13).

The rotor 224 may, for example, be connected to the rotating shaft of the drum 170.

The drum driving motor 220 may be constituted by a so-called outer rotor type motor in which the rotor 224 is rotated from the outside of the stator 222, for example.

In the cabinet 110, for example, a drying module 240 for providing heated air to the inside of the tub 130 may be provided.

The drying module 240 may not be installed in the case of a laundry processing apparatus having no drying function.

Hereinafter, a case where the drying module 240 is provided will be described in the present embodiment.

The drying module 240 may be provided on the upper side of the tub 130, for example.

The drying module 240 includes a case 242 having one side connected to the rear of the tub 130 and the other side connected to the front of the tub 130 and having an air flow path formed therein, A heat pump including a condenser and a compressor 244 for compressing the refrigerant, and a fan 246 for promoting the flow of air.

When the fan 246 is rotated, the air in the tub 130 is drawn out along the inner air flow path of the case 242, and is heat-exchanged by the evaporator and the condenser to remove moisture, The air can be introduced into the tub 130 through the air.

A storage container 252 for supplying a liquid detergent into the tub 130 may be provided in the cabinet 110.

The storage container 252 may be provided on the lower side of the tub 130, for example.

The storage container 252 may have a rectangular parallelepiped shape, for example.

The storage container 252 can be drawn out and stored in the front-rear direction of the cabinet 110.

A storage unit 250 for storing the storage container 252 may be formed at a lower portion of the cabinet 110.

A cover 255 for opening and closing the storage unit 250 may be provided on the front surface of the storage unit 250.

A liquid detergent pump (not shown) may be provided in the rear area of the storage container 252, for example, to pump the liquid detergent.

The liquid detergent pump may be configured to supply the liquid detergent into the circulation pipe 274, which will be described later, for example.

In this embodiment, the liquid detergent is configured to be supplied to the inside of the tub 130. However, the detergent supply device may be configured to supply a conventional detergent.

The tub 130 may be provided with a circulation channel 270 to allow the washing water in the tub 130 to be drawn out and circulated.

3, the circulation flow passage 270 includes a bellows 272 connected to the bottom of the tub 130, one end connected to the bellows 272, A circulation pump 275 connected to the filter case 278 and a circulation pump 285 connected to the filter case 278 are connected to the discharge side of the circulation pump 285 and the front opening 136 of the tub 130 And a circulating feeding inlet 276 connected thereto.

The filter case 278 may be provided with a filter that can be detachably pulled forward.

The filter may be inserted into the filter case 278 and may be provided with a handle 280 of the filter on the outside of the filter case 278.

A drain pump 286 may be provided on the other side of the filter case 278 to discharge wash water to the outside.

The circulation pump 285 may be provided on the upper surface of the filter case 278.

The drain pump 286 may be provided on a side surface (right side in the figure) of the filter case 278.

The drain pump 286 is not specifically shown in the drawing, but a drain pipe may be connected thereto.

The drain pipe can be realized as a normal corrugated pipe.

A front gasket 310 is installed in the front opening 136 of the tub 130 to block the gap between the door 115 and the front opening 136 of the tub 130 .

The front tub 132 includes a cylindrical body 133, a front surface 134 formed on one side (front region) of the body 133 to be reduced along the radial direction of the body 133, And a front opening 136 protruding forward from the front surface 134 and having an opening formed therein.

The front opening 136 may have a rim 137 protruding forward from the front surface 134, as shown in Fig.

The front end of the rim portion 137 may be disposed substantially vertically with respect to the bottom surface (base 117), for example, since the front portion of the tub 130 is arranged to be inclined rearward at a higher height than the rear portion thereof have.

The rim portion 137 may be formed, for example, such that the upper region protrudes more than the lower region.

The lower region of the rim portion 137 may not protrude substantially from the front surface 134.

A gasket coupling portion 139 may be formed in the front opening portion 136 to allow the front gasket 310 to be coupled.

The gasket coupling portion 139 includes a vertical section 141 protruding toward the center along the radial direction at the front end of the rim section 137 and a horizontal section 141 projecting forward from the vertical section 141, And an interval section 143.

For example, the horizontal section 143 may be provided with an inclined rib 145 protruding outwardly and extending along the circumferential direction.

5 and 7, the front gasket 310 may be formed of an elastic member so as to hermetically seal the gap between the door 115 and the tub 130 .

The front gasket 310 may be formed of, for example, a rubber member.

The front gasket 310 may be formed in a substantially ring shape so as to be coupled along the front edge of the rim portion 137, for example, as shown in Fig.

The front gasket 310 may include a ring-shaped front gasket body 312.

The front gasket body 312 may include a blocking rib 314 contacting the door 115 to block a gap between the door 115 and the front opening 136 of the tub 130.

The blocking rib 314 may protrude radially inwardly (toward the center) from the inner surface of the front gasket body 312 and extend along the circumferential direction.

An engaging portion 315 may be provided between the front gasket 310 and the tub 130 so that the front gasket 310 and the tub 130 can be engaged with each other.

The engaging portion 315 may include a locking hole 316 formed through the front gasket 310 and a locking ring 317 inserted into the locking hole 316.

The front gasket 310 may include a hot air inflow portion 320 through which hot air flows into the tub 130.

The hot air inflow portion 320 may be formed in a substantially rectangular parallelepiped shape, for example.

The hot air inflow part 320 may be configured to have a shape of a duct having a rectangular cross section, for example.

The hot air inflow part 320 may protrude outward along the radial direction of the front gasket body 312.

The hot air inflow part 320 may be disposed at an upper left area of the tub 130 when viewed from the front of the cabinet 110. [

For example, the drying module 240 may be connected to the hot air inflow part 320.

The front gasket 310 may be provided with a water supply unit 330 to allow the washing water or the circulating water to flow into the tub 130.

The water supply part 330 may be spaced apart from the hot air inflow part 320 by a predetermined distance along the circumferential direction of the front gasket 310, for example.

Thus, damage or deformation of the water supply part 330 due to high temperature of hot air flowing into the hot air inflow part 320 can be suppressed.

The water supply unit 330 includes a first water supply unit 330a connected to a washing water supply pipe 372 connected to a water supply source and a circulation channel 270 for circulating the washing water of the tub 130, And a second water supply unit 330b to which the inlet 276 is connected.

The water supply unit 330 (the first water supply unit 330a and the second water supply unit 330b) may include a washing water inflow unit 332 and a washing water inflow unit 332, And a washing water guide portion 334 for guiding the washing water passed through the drum 170 to the inside of the drum 170.

As shown in FIG. 8, for example, the rim portion 137 may be formed with a washing and drinking cavity 362 through which washing water of the washing water supply pipe 372 can be introduced.

A circulation feeding hole 363 may be formed in one side of the washing and feeding hole 362 of the rim portion 137 so that circulating water (washing water) of the circulating feeding inlet 276 may be introduced.

At one side of the washing water supply pipe 372, for example, an atomizing nozzle 350 connected to a water supply source to atomize tap water into the drum 170 may be provided.

As shown in FIG. 9, for example, the front gasket 310 may include a washing water supply pipe coupling portion 365 to which the washing water supply pipe 372 is coupled.

A circulation receiving portion 366 may be provided at one side of the washing water supply pipe coupling portion 365 to which the circulation receiving portion 276 is coupled.

The atomizing nozzle 350 may include a nozzle body 352 for atomizing the washing water and a guide portion 354 for guiding the washing water atomized by the nozzle body 352 have.

The atomizing nozzle 350 may be connected to a water supply source by, for example, a water supply pipe 374. [

The atomizing nozzle 350 may be integrally formed with the tub 130 (the front tub 132).

The washing water supply pipe 372 and the water supply pipe 374 may be provided with an opening / closing valve 377 for opening and closing the respective flow paths.

An atomizing nozzle coupling portion 340 to which the atomizing nozzle 350 is coupled may be integrally formed on one side of the water supply portion 330 of the front gasket 310. [

Side inclined portions 341 and 342 may be provided on one side of the water supply portion 330 and on the side surface of the atomizing nozzle coupling portion 340, respectively.

Each of the side slopes 341 and 342 may be formed so as to face the center of rotation of the front opening 173 of the drum 170, for example.

The laundry to be rotated during the rotation of the drum 170 can be guided toward the rotation center side of the front opening portion 173 of the drum 170 by the side slope portions 341 and 342.

The front gasket 310 protrudes to the inside of the front opening 173 of the drum 170 to guide laundry to the inside (rear) of the drum 170 when the drum 170 rotates. Prevention ribs 390 may be provided.

The jam preventing ribs 390 may be spaced apart from the hot air inflow part 320 by a predetermined distance, for example.

More specifically, the jaw-protecting ribs 390 may be formed in the water supply part 330.

Thus, deformation or damage of the jaw-protecting ribs 390 due to the high temperature of the hot air introduced into the drum 170 through the hot-air inflow portion 320 can be suppressed.

The to-be-caught ribs 390 may include, for example, a side surface 392 protruding downward from the lower end (bottom surface) of the water supply part 330, (Upper surface) 394 extending from the washing water guide surface (see FIG. 7).

The jam preventing ribs 390 may have a bottom surface 396 extending horizontally from the lower end of the side surface to the inside of the drum 170.

The jaw-protecting ribs 390 may include laundry guide surfaces 399a and 399b formed on both sides of the drum 170 in the direction of rotation of the drum 170 so as to be inclined toward the inside of the drum 170 .

Accordingly, the laundry in contact with the laundry guide surfaces 399a and 399b can be guided to the inner side (rear side) of the drum 170 when the drum 170 rotates.

The jam preventing rib 390 may include an end guide surface 398 extending upward from the bottom surface 396 toward the inside of the drum 170.

Accordingly, not only the contact resistance with the laundry moving upward during the rotation of the drum 170 can be reduced, but also the laundry can be guided to be moved to the upper space above the drum 170.

11 and 12, a front surface of the bearing housing 192 may have a turbine coupling surface 193a to which the turbine back 164 is coupled.

The upper end of the bearing housing 192 may be provided with an upper extension 193b protruding upward along the radial direction of the bearing housing 192.

The lower portion of the bearing housing 192 may be formed with an inclined extension portion 193c extending obliquely to both sides.

The upper extension 193b may extend upwardly along the vertical centerline of the bearing housing 192, for example.

A transit bolt coupling portion 410 is formed in the upper end portion of the bearing housing 192 so that a transit bolt (not shown) can be threaded through the rear surface of the cabinet 110 .

The transfix bolt coupling part 410 may be formed with a female screw part 413 so that a bolt inserted through the cabinet 110 can be screwed.

The fixing portion passing through the safety cover 430 may be screwed to the transit bolt coupling portion 410,

Each of the slant extension portions 193c is provided with a transit bolt fastening portion 412 so that a transit bolt inserted through the cabinet 110 corresponding to the slant extension portion 193c can be fastened .

A stator coupling surface 193d may be formed on the rear surface of the bearing housing 192. [

And a third support portion recombination portion 193e to which the third support member 207 is coupled may be provided between the inclined extension portions 193c.

A bearing engagement portion 193f may be formed at the center of the bearing housing 192 so that a bearing (not shown) may be coupled.

A transit bolt insertion hole (not shown) may be formed in the rear portion (cabinet bag) 118 of the cabinet 110 so that the transit bolt can be inserted therethrough.

The relative movement of the drum 170 and the bearing housing 192 with respect to the cabinet 110 when the bearing housing 192 is integrally coupled to the cabinet 110 and moves (transports and transports) ) Can be suppressed.

The transit bolt coupling part 410 may be formed to protrude rearward from the rear surface of the upper extension part 193b, for example.

The transit bolt coupling part 410 may be provided with a female screw part 413 so that the male screw part of the transit bolt can be screwed.

A rotor 224 of the drum driving motor 220 may be rotatably mounted on the inner side of the transit bolt coupling part 410 (the lower side of the transit bolt coupling part 410 in the figure).

It is possible to prevent the foreign body or the finger or the like from being inserted into the transit bolt coupling part 410 through the transit bolt insertion hole formed through the rear part 118 of the cabinet 110 to contact with the rotatable rotor 224 A safety cover 430 may be provided.

The safety cover 430 may be disposed between the female screw portion 413 and the rotor 224.

In the rear region of the drum 170, a backward padding restrainer 450 may be provided to prevent backward pivoting of the drum 170.

The rear pivot restraining part 450 includes, for example, a first stopper 460 provided on the bearing housing 192; And a second stopper (480) disposed in a rear region of the cabinet (110) so as to be in contact with the first stopper (460) during a predetermined load of the drum (170) to inhibit rearward pivoting of the drum (170). As shown in FIG.

The first stopper 460 may be provided in the bearing housing 192, for example.

More specifically, for example, the first stopper 460 may be integrally formed with the safety cover 430.

The first stopper 460 may be integrally formed on one side of the safety cover 430 (on the right side of the back surface of the tub 130).

15, the safety cover 430 includes a bearing housing coupling portion 432 coupled to the bearing housing 192 and a bearing housing coupling portion 432 projecting from the bearing housing coupling portion 432, And a blocking unit 434 for blocking the upper region of the motor 220.

The blocking portion 434 may protrude from the lower end of the bearing housing coupling portion 432 in a direction substantially perpendicular to the bearing housing coupling portion 432, for example.

The bearing housing coupling part 432 and the blocking part 434 may be provided with reinforcing ribs 436 at the same time.

A fixing member insertion hole 438 may be formed in the safety cover 430 so that a fixing member coupled to the bearing housing 192 can be inserted.

The fixing member may be a fixing bolt that is screwed to the bearing housing 192.

The fixing member insertion hole may be formed through the bearing housing coupling portion 432.

The first stopper 460 may be configured such that its outer width gradually decreases along a protruding direction, for example.

The first stopper 460 includes a top surface 462 projecting horizontally, two side surfaces 464 disposed on both sides of the top surface 462, A sloping bottom surface 466 formed upwardly inclined and a contact end surface 468 formed vertically at the ends thereof.

On the rear surface of the first stopper 460, for example, a support portion 469 may be formed.

14 and 17, when the drum 170 is fully loaded and the drum 170 is moved backward (pushed), the second stopper 480 is rotated in the reverse direction And can be disposed at a position where it can be in contact with the first stopper 460.

Here, the full load of the drum 170 may be the maximum allowable (100%) capacity that can be accommodated in the drum 170 to be washable (dried). The pull load of the drum 170 is not a capacity for actual washing, but may be excessively set to exceed a normal load (degree) in order to measure (test) a jaw and / or a noise.

When the rotational speed of the drum 170 is increased for dewatering when the drum 170 is fully loaded, the laundry can be closely attached to the inner surface of the drum 170 by the centrifugal force. When the drum 170 is full-loaded in the process of raising the speed of the drum 170, the laundry is pushed out to the front region of the drum 170, So that the phenomenon of so-called catching between the tub 115 and the tub 130 can be further increased.

The second stopper 480 is provided at the rear end of the drum 170 so as not to be detached from the drum 170 when the drum 170 is pulled out, . ≪ / RTI >

When the to-be-jam preventing ribs 390 are detached from the front opening 173 of the drum 170, a guide for guiding the laundry in the drum 170 to the inner (rear) region of the drum 170 So that the laundry in the drum 170 flows out to the outside through the front opening 173 of the drum 170, which may increase the jamming phenomenon.

The bearing housing 192 can be moved downward a little (about 10 mm) in accordance with an increase in load amount (bulk amount) due to the structural characteristics of the drum supporting unit 190 when the drum 170 is fully loaded.

The tip end of the jam preventing rib 390 may be disposed at the rear end of the front opening portion 173 of the drum 170 when the drum 170 is loaded in a full load state.

Here, when the drum 170 is fully loaded, a so-called backward pushing phenomenon may occur, in which the drum 170 is pushed backward due to unevenness in the amount of the drum 170 stored in the drum 170 or the like.

The drum 170 can be supported without causing backward bending by the drum supporting unit 190 in the case of a normal load (for example, about 60% to 80% of the full load).

Prevention ribs 390 can guide the laundry inside the front opening portion 173 of the drum 170 to the inside (rear) region of the drum 170 when the drum 170 rotates have.

As a result, laundry in the drum 170 can be prevented from flowing out to the outside through the front opening 173 of the drum 170.

16, the second stopper 480 includes a cabinet engaging portion 482 coupled to the cabinet 110 and a second stopper protruding from the cabinet engaging portion 482, And a contact support portion 484 that contacts the first stopper 460 and supports the first stopper 460.

The second stopper 480 may be coupled to a rear portion (cabinet bag) 118 of the cabinet 110.

The rear portion 118 of the cabinet 110 may be provided with a depression 119 depressed rearward to correspond to the region of the drum driving motor 220.

The second stopper 480 may be provided in the depression 119 of the cabinet 110.

The cabinet coupling portion 482 of the second stopper 480 is coupled to the rear portion 118 of the cabinet 110 so that a fixing member, The fixing unit reuniting unit 485 can be formed.

The rear end of the tub 130 (the rear tub 160) may be fixedly coupled to the rear fixing part 155 formed on the upper side of the depression 119 in the cabinet 110.

The cabinet coupling portion 482 of the second stopper 480 may have a shape having a step corresponding to the shape of the cabinet 110.

The contact support portion 484 of the second stopper 480 includes a bottom surface 496 protruding horizontally, two side surfaces 494 vertically disposed on both sides of the bottom surface 496, And an inclined upper surface 492 formed on the upper side of the both side surfaces 494 and inclined downward along the projecting direction and a contact end surface 498 formed perpendicularly to the end portions thereof.

The inclined bottom surface 466 of the first stopper 460 and the inclined upper surface 492 of the second stopper 480 may be configured to have the same inclination angle so as to be in surface contact with each other .

The support portion 469 may be formed on the back surface of the first stopper 460.

The support portion 469 may be formed to have a shape corresponding to, for example, the structure of the bearing housing 192 or the parts to be coupled.

13, the first stopper 460 can be moved backward and upward by the elastic force of the respective support members 201 (springs) when the drum 170 is not loaded, for example, have.

More specifically, when the drum 170 is not loaded, the first stopper 460 is positioned on the upper side of the second stopper 480 on the bearing characteristics of the bearing housing 192 and the support brackets 195 But can be moved backward a little (e.g., about 10 mm or so).

The first stopper 460 and the second stopper 480 are configured to inhibit the drum 170 from being pushed rearward by a predetermined distance or more during a full load operation of the drum 170 So that they can be in contact with each other.

When the first stopper 460 and the second stopper 480 are brought into contact with each other due to the backward pivoting of the drum 170 when the drum 170 is loaded in a full load, the rear end of the bearing housing 192 And the rear portion 118 of the cabinet 110 may be maintained at a predetermined distance.

The interval between the bearing housing 192 and the rear portion 118 of the cabinet 110 is set such that the jaw preventing ribs 390 are not separated from the front opening portion 173 of the drum 170 As shown in FIG.

When the first stopper 460 and the second stopper 480 are in contact with the first stopper 460 and the second stopper 480, The laundry can be prevented from being detached from the position where the laundry can be guided to the inside of the drum 170 by being disposed inside the front opening portion 173.

When the first stopper 460 and the second stopper 480 are in contact with each other, the jaw-protecting ribs 390 may be disposed inside the front opening portion 173 of the drum 170.

The jaw preventing ribs 390 are disposed inside the front opening portion 173 of the drum 170 to guide the rotating laundry into the drum 170, Can be prevented from flowing out to the outside through the front opening (173) of the drum (170).

When the first stopper 460 and the second stopper 480 are brought into contact with each other due to the backward pivoting of the drum 170 when the drum 170 is fully loaded, The distance between the rear portions 118 of the cabinet 110 may be set to, for example, 30 mm.

The first stopper 460 and the second stopper 480 are brought into contact with each other when the drum 170 is pushed rearward when the drum 170 is loaded in a full load state, The tub 130 and the drum supporting unit 130 may be separated from each other by a distance of 30 mm between the drum 192 and the rear portion 118 of the cabinet 110. However, 190). ≪ / RTI >

Meanwhile, the contact between the first stopper 460 and the second stopper 480 may occur periodically when the drum 170 is fully loaded.

The first stopper 460 and the second stopper 480 may be contacted approximately once every minute when the drum 170 is loaded full.

More specifically, for example, as shown in FIG. 18, when the drum 170 is fully loaded, the laundry processing apparatus (shown in dark black) of the present embodiment is connected to the bearing housing 192 and the cabinet 110 are maintained at a predetermined distance (30 mm) or more with respect to the rear portion 118 of the housing 110.

On the contrary, in the comparative example (shown in gray) in which the first stopper 460 and the second stopper 480 are not provided, the bearing housing 192 and the rear portion 118 of the cabinet 110 ) Is relatively narrowed.

The front opening portion 173 of the drum 170 is detached from the front opening portion 136 of the tub 130 in the front region of the drum 170 and the tub 130, And it is confirmed that the phenomenon of jumping is increased.

 As shown in FIG. 19, for example, a buffer member 501 may be provided in a mutual contact area between the first stopper 460 and the second stopper 480.

Accordingly, the amount of impact when the first stopper 460 and the second stopper 480 are in contact with each other can be reduced.

The buffer member 501 may be embodied as a rubber member, for example.

The buffer member 501 may be provided on the contact end face 468 of the first stopper 460 or the contact end face 498 of the second stopper 480, for example.

The first stopper 460 and the second stopper 480 may be configured to include a sound absorbing material 511 in mutual contact areas, for example.

Thus, it is possible to suppress the occurrence of a shock noise when the first stopper 460 and the second stopper 480 are in contact with each other.

The sound absorbing material 511 may be provided on both side surfaces 464, the inclined bottom surface 466, and the end contact surface 468 of the first stopper 460, for example.

The sound absorbing material 511 may be provided on both side surfaces 494, the inclined upper surface 492 and the contact end surface 498 of the second stopper 480, for example.

The cushioning member 501 is provided on at least one side of the contact end faces 468 and 498 of the first stopper 460 and the second stopper 480 and both side faces 464 and 464 of the first stopper 460 The inclined lower surface 466 of the second stopper 480 and both side surfaces 494 and the inclined upper surface 492 of the second stopper 480 may be respectively provided with a sound absorbing material 511.

According to such a configuration, laundry is introduced into the drum 170, and when the washing water is supplied in accordance with the laundry amount, the drum 170 is washed in forward and reverse rotations.

The laundry in the drum 170 can be moved upward when the drum 170 is rotated forward or backward.

The laundry moved to the inside of the front opening portion 173 of the drum 170 of the laundry which is moved upward by the rotation of the drum 170 is discharged to the inside of the water supply portion 330 and the atomizing nozzle coupling portion 340 Can be guided to the center side of the front opening (173) of the drum (170) by the side inclined portions (341, 342).

The laundry in the inner area of the front opening 173 of the drum 170 can be guided to the inner side (rear side) of the drum 170 by the jamming prevention ribs 390.

The laundry inside the drum 170 is discharged to the outside and is caught in the front opening 136 of the door 130 and the front opening 173 of the drum 170 It is possible to suppress the occurrence of the jamming phenomenon.

The laundry is moved to the inner (rear) area of the drum 170 by the guiding action of the jam preventing ribs 390 so that the laundry in the drum 170 is discharged to the front side of the drum 170 So that the occurrence of a so-called collapse phenomenon in which the laundry in the front opening area of the drum 170 is struck against the to-be-caught ribs 390, the door 115 and the like can be suppressed.

The drum 170 can be moved to the front lower side of the cabinet 110 when the maximum allowable amount of laundry is loaded into the drum 170, that is, when the drum 170 is loaded.

The bearing housing 192 is relatively moved forward and downward relative to the rear portion 118 of the cabinet 110 so that the first stopper 460 contacts the contact support portion 484 of the second stopper 480, As shown in Fig.

The rearward movement of the drum 170 may be generated depending on the distribution of the laundry in the drum 170 during the rotation of the drum 170. [

When the drum 170 is pushed rearward, the first stopper 460 comes into contact with the second supporter 480 so that the backward pivoting of the drum 170 can be suppressed.

The front opening portion 173 of the drum 170 is maintained within a predetermined distance from the front opening portion 136 of the tub 130 so that the front opening portion 136 of the tub 130 The occurrence can be suppressed.

Since the front opening 173 of the drum 170 is spaced apart from the front opening 136 of the tub 130 within a predetermined distance, the to-be-caught prevention ribs 390 are spaced apart from the drum 170 Can be stably maintained in the state of being inserted into the inside of the front opening (173)

Accordingly, the guiding action of the jam preventing ribs 390 for guiding the laundry, which is moved to the inside of the front opening portion 173 of the drum 170, to the inner rear region of the drum 170 is smoothly maintained, It is possible to remarkably suppress the occurrence of jamming.

The backward pivoting of the drum 170 is suppressed by the mutual contact of the first stopper 460 and the second stopper 480 and the to- The laundry can be positioned and held on the inner side of the drum 170 even when the speed of the drum 170 rises.

The foregoing has been shown and described with respect to specific embodiments of the invention. However, the present invention may be embodied in various forms without departing from the spirit or essential characteristics thereof, so that the above-described embodiments should not be limited by the details of the detailed description.

Further, even when the embodiments not listed in the detailed description have been described, it should be interpreted broadly within the scope of the technical idea defined in the appended claims. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

110: cabinet 115: door
130: a tub 132: a front tub
136, 173: front opening portion 160: rear tub
170: Drum 190: Drum support unit
192: bearing housing 195: support bracket
196: Radial bracket 197: Horizontal bracket
201: support member 220: drum drive motor
222: stator 224: rotor
240: Drying module 252: Storage container
255: cover 270: circulation channel
272: Bellows 274: Circulation piping
276: Circulating feeding inlet 278: Filter case
285: Circulation pump 286: Drain pump
310: front gasket 312: front gasket body
314: cut-off rib 330:
332: washing water inflow part 334: washing water guide part
340: Atomizing nozzle coupling portion 341, 342: Side inclined portion
350: Atomizing nozzle 370: Water supply pipe
390: anti-jamming ribs 392: side
394: Washing water guide surface 399a, 399b: Laundry guide surface
410: Transit bolt coupling part 430: Safety cover
432: Bearing housing coupling portion 434:
450: rear anti-slide member 460: first stopper
466: inclined bottom face 480: second stopper
492: inclined upper surface 501: buffer member
511: Sound absorbing material

Claims (17)

A cabinet formed with a doorway;
A tub secured to the inside of the cabinet and having a front opening corresponding to the doorway;
A drum disposed inside the tub;
A drum supporting unit having a bearing housing connected to a rear end of the tub to support the drum rotatably with respect to the base of the cabinet;
A drum driving motor connected to the bearing housing for rotating the drum; And
And a backward jam restraining portion for restricting rearward jumping of the drum,
Wherein the backrest limiting portion includes: a first stopper provided on the bearing housing; And
And a second stopper disposed in a rear region of the cabinet so as to be in contact with the first stopper when a predetermined load of the drum is loaded. The method according to claim 1,
Wherein the predetermined load of the drum is a full load of the drum. The method according to claim 1,
Wherein the cabinet is formed with a transit bolt hole through which a transit bolt coupled to the bearing housing is inserted,
Wherein a safety cover for blocking the trench bolt is integrally formed on one side of the first stopper. The method according to claim 1,
Wherein the first stopper has a section that gradually decreases in width along the projecting direction. The method according to claim 1,
Wherein the first stopper has a bottom surface inclined upward along the protruding direction, and the second stopper has a top surface inclined downward along the protruding direction. 6. The method of claim 5,
Wherein the upper surface of the second stopper is inclined to be in surface contact with the lower surface of the first stopper. 7. The method according to any one of claims 1 to 6,
The drum supporting unit includes: a pair of supporting brackets extending downward along the radial direction of the bearing housing and bent forward;
A first support member disposed in front of each of the support brackets;
A second support member disposed behind each of the support brackets; And
And a third support member disposed at a lower portion of the bearing housing,
Wherein the drum is disposed such that a rotation axis of the drum is inclined upward in a forward direction. 7. The method according to any one of claims 1 to 6,
Wherein a sound absorbing material is provided on any one or both of mutual contact surfaces of the first stopper and the second stopper. 7. The method according to any one of claims 1 to 6,
Wherein one of the first stopper and the second stopper includes a moving projection capable of being retracted when the first stopper and the second stopper are in contact with each other and a moving projection supporting portion for supporting the moving projection. 10. The method of claim 9,
Further comprising an elastic member that applies an elastic force such that the moving projection protrudes. 10. The method of claim 9,
And a sound absorbing material is provided at a contact area between the moving projection and the moving projection supporting part. 10. The method of claim 9,
And a buffer member contacting the moving projection when the moving projection is retracted. 10. The method of claim 9,
Further comprising: an elastic member which exerts an elastic force so that the moving protrusion protrudes; and a buffer member that contacts the moving protrusion when the moving protrusion retreats. A cabinet having an entrance and a door for opening and closing the entrance;
A tub secured to the inside of the cabinet and having a front opening corresponding to the doorway;
A drum disposed inside the tub, the drum having a front opening protruding forward corresponding to the front opening;
A drum supporting unit having a bearing housing connected to a rear end of the tub to support the drum rotatably with respect to the base of the cabinet;
A drum driving motor connected to the bearing housing for rotating the drum;
Preventing ribs inserted into the front opening of the tub and interposed between the door and the front opening and inserted into the front opening of the drum to guide the laundry into the drum when the drum rotates A front gasket provided thereto; And
And a rear pivot restraining portion for restricting rearward pivoting of the drum so that the engagement preventing rib is not separated from the drum,
Wherein the backrest limiting portion includes: a first stopper provided on the bearing housing; And
And a second stopper disposed in a rear region of the cabinet so as to be in contact with the first stopper when a predetermined load of the drum is loaded. 15. The method of claim 14,
Wherein the second stopper is disposed at a position where the second stopper can contact the first stopper when the drum is loaded full. 15. The method of claim 14,
Wherein the jaw-protecting rib is disposed between a leading end and a trailing end of a front opening portion of the drum,
Wherein the to-be-engaged prevention rib is located at an inner front end of the front opening of the drum when the first stopper and the second stopper come in contact with each other. 17. The method according to any one of claims 14 to 16,
The drum supporting unit includes: a pair of supporting brackets extending downward along the radial direction of the bearing housing and bent forward;
A first support member disposed in front of each of the support brackets;
A second support member disposed behind each of the support brackets; And
And a third support member disposed at a lower portion of the bearing housing,
Wherein the drum is disposed such that a rotation axis of the drum is inclined upward in a forward direction.

Images