KR20210131757A - Laundry treating apparatus - Google Patents

Abstract

Disclosed is a clothes treatment apparatus. In accordance with one embodiment of the present invention, the clothes treatment apparatus includes a housing, a tub, a drum, a storage unit and a fixing unit. The storage unit includes a withdrawal limit bar and a withdrawal limit protrusion. The fixing unit includes: a stopper protruding toward the storage unit, and coming in contact with the withdrawal limit protrusion during the withdrawal procedure of the storage unit to limit the forward movement of the withdrawal limit protrusion; and a pre-pressing part spaced apart to the rear side of the stopper, and protruding toward the storage unit to press the withdrawal limit protrusion away from the fixing unit during the withdrawal procedure. The withdrawal limit protrusion limits the forward movement by selectively coming in contact with the stopper in accordance with the speed of withdrawal while kept pressed by the pre-pressing part during the withdrawal procedure. Therefore, the present invention is capable of effectively improving durability and having robustness against damage and breakage.

Description

Clothes processing equipment {LAUNDRY TREATING APPARATUS}

The present invention relates to a laundry treatment apparatus, and to a laundry treatment apparatus including a detergent supply apparatus.

A laundry treatment device is a device that removes contamination from laundry by putting clothes, bedding, etc. (hereinafter referred to as laundry) into the drum. The laundry treatment apparatus can perform processes such as washing, rinsing, dehydration, and drying, and the laundry treatment apparatus can perform a top loading method and a front loading method based on a method of putting laundry into a drum. can be distinguished.

The laundry treatment apparatus may include a housing that forms an exterior, a tub accommodated in the housing, a drum rotatably mounted inside the tub and into which laundry is put, and a detergent supply device that supplies detergent to the inside of the drum.

When the drum rotates by the motor in a state in which wash water is supplied to the laundry accommodated in the drum, the laundry may be removed from dirt due to friction between the drum and the wash water.

The detergent supply device has a detergent supply function to enhance the washing effect. Here, the detergent refers to a material that enhances the washing effect, such as a textile detergent, a fabric softener, and a fabric bleach. As the detergent, a powder (powder) type detergent or a liquid (liquid) type detergent may be used.

On the other hand, published document KR 10-2018-0090003 A1 discloses a detergent supply device included in a laundry treatment apparatus. The laundry treatment apparatus may be used while the storage unit of the detergent supply apparatus is drawn in or withdrawn by the user.

However, when the storage unit is pulled out to be completely separated from the laundry treatment apparatus whenever the storage unit is used, it is necessary for the user to properly couple the storage unit to the laundry treatment apparatus again, which may reduce usability.

In addition, it may be advantageous to improve usability of the storage unit in that the storage unit can be completely separated from the laundry treatment apparatus according to a user's needs, for example, for washing after separation of the storage unit.

Accordingly, to appropriately adjust the withdrawal distance of the storage unit according to a user's intention is an important task in the present technical field for improving the usability of the laundry treatment apparatus.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus including a storage unit capable of effectively adjusting a withdrawal distance according to a user's intention.

In addition, embodiments of the present invention are intended to provide a laundry treatment apparatus that is strong against damage and breakage during use and can effectively improve durability.

A laundry treatment apparatus according to an embodiment of the present invention includes a storage unit whose withdrawal distance can be adjusted. An embodiment of the present invention includes a fixed unit facing the storage unit drawn into the housing, and the fixed unit includes a stopper that limits the withdrawal distance of the storage unit to a set withdrawal distance that can be designally determined.

The storage unit is provided with a withdrawal-limiting protrusion that selectively restricts movement by the stopper, and when the withdrawal-limiting protrusion is restricted from moving forward by the stopper, the storage unit can also be withdrawn forward by restricting the movement of the withdrawal-limiting protrusion. By being limited, only the set withdrawal distance can be withdrawn during the withdrawal process.

In addition, the fixed unit may be provided with a pre-pressurizing unit, and the withdrawal limiting protrusion may be pressed by the pre-pressurizing unit while passing through the pre-pressurizing unit prior to the stopper in the process of withdrawing the storage unit.

The position of the withdrawal-limiting protrusion pressed by the pre-pressurizing unit is changed, and in this state, it may be determined whether the withdrawal-limiting protrusion is in contact with the stopper by the user's withdrawal speed.

For example, in one embodiment of the present invention, the reference withdrawal speed may be determined in consideration of the height of the stopper, the height of the withdrawal-limiting projection, the height of the pre-pressurizing portion, the distance between the stopper and the pre-pressing portion, the restoration speed of the withdrawal-limiting projection, etc. have.

In other words, an embodiment of the present invention may determine the position restoring force of the withdrawal limiting protrusion or the distance between the stopper and the pre-pressurizing unit to meet a predetermined reference withdrawal speed.

In the process of withdrawing the storage unit, when the user withdraws the storage unit at a speed higher than the withdrawal reference speed, the withdrawal limiting projection whose position has been changed by being pressed by the pre-pressurizing unit passes through the stopper before being restored to the original position, and accordingly, the storage unit The withdrawal distance is not limited by the silver stopper and can be completely withdrawn.

On the other hand, when the user withdraws the storage unit at less than the reference speed for withdrawal, the withdrawal limiting projection whose position has been changed by the pre-pressurizing unit is restored to its original position before reaching the stopper, and accordingly, the withdrawal limiting projection comes into contact with the stopper. The forward movement is restricted, and thus the withdrawal distance of the storage unit may be limited by the set withdrawal distance determined by the stopper.

As described above, according to an embodiment of the present invention, the user can effectively determine whether to completely withdraw the storage unit as needed, so that the convenience of use can be improved.

Furthermore, when the movement of the object is restricted by physical contact like the stopper presented in an embodiment of the present invention, when the user withdraws the storage unit with excessive force or speed, the withdrawal limiting protrusion, etc. collides with the stopper may be damaged or damaged, and thus the full use of the storage unit may become impossible.

Therefore, according to an embodiment of the present invention, by changing the position of the withdrawal limiting protrusion prior to the stopper through the pre-pressurizing unit, even if the storage unit is withdrawn by excessive withdrawal speed or force, damage and damage to the withdrawal limiting projection, etc. can be effectively prevented. Thus, durability can be effectively improved.

As described above, the laundry treatment apparatus according to an embodiment of the present invention may include a housing, a tub, and a drum. An opening is provided in the front of the housing, the tub is installed inside the housing, and the drum is rotatably installed inside the tub.

In addition, the laundry treatment apparatus according to an embodiment of the present invention is drawn into and withdrawn from the inside of the housing through the opening, a storage unit for storing detergent therein, and a storage unit fixed inside the housing and introduced into the housing. and a fixing unit provided to selectively limit the withdrawal distance of the storage unit.

The storage unit includes at least a portion of the withdrawal limiting bar provided so that a distance from the fixing unit is variable by elastic deformation, and a withdrawal limiting protrusion protruding from the withdrawal limiting bar toward the fixing unit.

The fixing unit protrudes toward the storage unit, comes in contact with the withdrawal limiting protrusion in the process of withdrawing the storage unit, and is spaced apart from the stopper and the stopper provided to limit the forward movement of the withdrawal limiting protrusion, and the storage unit and a pre-pressurizing part protruding toward and pressing the withdrawal limiting protrusion in a direction away from the fixing unit during the withdrawal process.

The withdrawal limiting protrusion is selectively contacted with the stopper according to the withdrawal speed in a state in which it is pressed by the pre-pressurizing unit during the withdrawal process, thereby limiting forward movement.

The pre-pressurizing unit may include a rear inclined surface provided to press the withdrawal limiting protrusion in the extraction process so as to increase the protruding height toward the front.

In the withdrawal process, the withdrawal limiting projection is pressed by the rear inclined surface to move from the first position to the second position, and the withdrawal limiting projection at the first position overlaps the stopper along the front and rear directions, and the second The withdrawal limiting protrusion at the position may deviate from the stopper along the front-rear direction.

The withdrawal limiting protrusion is moved to the first position and comes into contact with the stopper when the withdrawal speed is less than the reference withdrawal speed while being positioned at the second position, and returns to the first position when the withdrawal speed is greater than or equal to the reference withdrawal speed. It may be moved forward past the stopper before being moved.

The pre-pressurizing part may have a protrusion height greater than or equal to a protrusion height of the stopper.

The withdrawal-limiting protrusion may include a front surface of the projection extending vertically from the withdrawal-limiting bar and selectively contacting the stopper and a rear surface of the projection provided to be inclined so that the height protruding from the withdrawal-limiting bar decreases as it goes toward the rear. have.

The pre-pressurizing part may include a front inclined surface that is positioned in front of the rear inclined surface, and is provided to increase a protruding height toward the rear.

The withdrawal limiting bar may have a rear end fixed to the storage unit, a front end forming a free end, and elastically deformable by being pressed by the pre-pressurizing portion through the withdrawal limiting protrusion.

The withdrawal limiting protrusion may be positioned between the front end and the rear end of the withdrawal limiting bar, and the front end may be exposed in front of the opening while the withdrawal limiting protrusion is in contact with the stopper.

The fixing unit may further include a guide rib protruding from the fixing unit and extending rearward from the stopper to prevent the front end of the withdrawal limiting bar from coming into contact with the stopper.

The guide rib is provided such that the protrusion height of the front end is greater than or equal to the protrusion height of the stopper, and the protrusion height decreases toward the rear. An open area may be formed along the direction to avoid the guide ribs.

The guide rib is disposed at the center of the stopper with respect to the lateral direction of the fixing unit, the pre-pressurizing part is provided on both sides of the guide rib in the lateral direction, and the withdrawal limiting protrusion is located at the center of the open area can be

The storage unit further includes a storage frame in which the detergent is stored, the withdrawal-limiting bar is provided at the rear end of the withdrawal-limiting bar, includes a hook projection, and extends toward the storage frame to store the storage unit It may include a hook coupling part inserted and coupled to the frame and an insertion coupling part provided at the rear end of the withdrawal limiting bar, extending toward the storage frame and inserted into the storage frame.

The insertion coupling part is provided in plurality, and at least one of the plurality of insertion coupling parts is extended longer than the rest and includes a guide extension part inserted into the storage frame, and the guide extension part determines the coupling position of the rest and the hook coupling part. It may be provided to guide.

It may further include a coupling support part protruding from the insertion coupling part in a direction transverse to the extending direction of the insertion coupling part and supported on the storage frame.

The insertion coupling portion extends downward from the withdrawal limiting bar, has a length parallel to the front and rear direction, the coupling support portion is provided in plurality, and the plurality of coupling support portions are first coupled protruding forward from the insertion coupling portion. It may include a support and a second coupling support protruding laterally from the insertion coupling portion.

SUMMARY Embodiments of the present invention provide a laundry treatment apparatus including a storage unit capable of effectively adjusting a withdrawal distance according to a user's intention.

In addition, embodiments of the present invention are intended to provide a laundry treatment apparatus that is strong against damage and breakage during use and can effectively improve durability.

1 is a view showing a clothes treatment apparatus according to an embodiment of the present invention.
2 is a view showing an exploded state of the detergent supply device in the laundry treatment device according to an embodiment of the present invention.
3 is a view illustrating a storage unit withdrawn from a housing in the laundry treatment apparatus according to an embodiment of the present invention.
4 is a view illustrating a withdrawal limiting bar and a withdrawal limiting protrusion provided in a storage unit in the laundry treatment apparatus according to an embodiment of the present invention.
5 is a view showing a stopper and a pre-pressurizing unit provided in a fixing unit in the laundry treatment apparatus according to an embodiment of the present invention.
6 is a view illustrating a state in which the withdrawal limiting protrusion is moved from a first position to a second position in the process of withdrawing the storage unit in the laundry treatment apparatus according to an embodiment of the present invention.
7 is a view showing a state in which the storage unit is moved in FIG. 6 and the withdrawal limiting projection is in contact with the stopper.
8 is a view showing a state in which the storage unit is moved in FIG. 6 and the withdrawal limiting protrusion passes through the stopper.
9 is a view schematically showing a state in which the withdrawal limiting protrusion is viewed from the rear in the laundry treatment apparatus according to an embodiment of the present invention.
10 is a view showing a withdrawal restriction bar separated from a storage frame in the laundry treatment apparatus according to an embodiment of the present invention.
11 is a perspective view of the withdrawal restriction bar of FIG. 10 as viewed from the rear.
12 is a view showing a storage frame from which a withdrawal restriction bar is separated in the laundry treatment apparatus according to an embodiment of the present invention.
13 is a cross-sectional view showing a side view of a withdrawal restriction bar coupled to a storage frame in the laundry treatment apparatus according to an embodiment of the present invention.
14 is a view showing a cross-section of the withdrawal limit bar coupled to the storage frame in the laundry treatment apparatus according to an embodiment of the present invention as viewed from the rear.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them.

However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

In the present specification, duplicate descriptions of the same components will be omitted.

Also, in this specification, when it is mentioned that a certain element is 'connected' or 'connected' to another element, it may be directly connected or connected to the other element, but another element in the middle. It should be understood that there may be On the other hand, in this specification, when it is mentioned that a certain element is 'directly connected' or 'directly connected' to another element, it should be understood that the other element does not exist in the middle.

In addition, the terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention.

Also, in this specification, the singular expression may include the plural expression unless the context clearly dictates otherwise.

Also in this specification, terms such as 'include' or 'have' are only intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, and one or more It should be understood that the existence or addition of other features, numbers, steps, operations, components, parts or combinations thereof is not precluded in advance.

Also in this specification, the term 'and/or' includes a combination of a plurality of listed items or any of a plurality of listed items. In this specification, 'A or B' may include 'A', 'B', or 'both A and B'.

FIG. 1 is a perspective view of a laundry treatment apparatus 1 according to an embodiment of the present invention, and FIG. 2 is an exploded view of a detergent supply apparatus 100 provided in the laundry treatment apparatus 1 .

Referring to FIGS. 1 and 2 , the laundry treatment apparatus 1 according to an embodiment of the present invention includes a housing 10 having an opening 15 in the front thereof, and a tub 20 installed in the housing 10 . , a drum 30 rotatably installed inside the tub 20 and a detergent supply device 100 installed in the opening 15 .

The laundry treatment apparatus 1 may include a washing machine in which a cloth is inserted into the washing tub to perform washing, rinsing and dehydration, or a dryer in which a wet cloth is inserted to perform drying.

The laundry treatment apparatus 1 may be divided into a top-loading type and a front-loading type. 1 shows a front-loading type laundry treatment apparatus 1, which is for convenience of explanation only. Since the present invention is not applied only to a front-loaded washing machine, it may also be applied to a top-loaded washing machine. .

As shown in FIG. 1 , the laundry treatment apparatus 1 includes a housing 10 that forms an exterior. The housing 10 may be provided with a manipulation unit having a display unit that receives various control commands from a user and displays information on an operating state.

In addition, the housing 10 may have a door 40 installed on the front part. The door 40 is rotatably provided in the housing 10 to control the laundry entering and leaving the drum 30 .

The housing 10 forms the exterior of the laundry treatment apparatus 1 , and a space in which various components constituting the laundry treatment apparatus 1 can be accommodated may be formed in the housing 10 . A drum 30 for accommodating laundry input through the door 40 may be installed inside the housing 10 .

Specifically, a tub 20 containing washing water and a drum 30 rotatably provided inside the tub 20 to accommodate laundry may be provided inside the housing 10 . A balancer for compensating for eccentricity generated by rotation may be installed on one side of the drum 30 .

The operation unit may include various keys for operating the operation state of the laundry treatment apparatus 1 and a display for displaying the operation state of the laundry treatment apparatus 1 . The door 40 may include a transparent member such as tempered glass so that the inside of the housing 10 or the drum 30 can be visually confirmed.

Meanwhile, as shown in FIG. 1 , in an embodiment of the present invention, the laundry treatment apparatus 1 may include an opening 15 at the front, and a detergent at the rear of the opening 15 inside the housing 10 . A supply device 100 may be provided.

The position and shape of the opening 15 may vary. 1 shows an opening 15 that is opened forward from the front part of the housing 10 , and the opening 15 is a corner area on the front side of the housing 10 , for example, at the upper end side of the front part, on one side, and on the side with the operation part. direction may be positioned side by side.

The detergent supply device 100 may be located in the rear of the opening 15 that may be provided on one upper side of the housing 10 inside the housing 10 . The detergent supply device 100 includes a storage unit 300 capable of storing detergent, a dispenser unit positioned above the storage unit 300 to supply water to the storage unit 300 , and introduced into the housing 10 . It may include a supply case 400 in which the storage unit 300 is accommodated.

The detergent supply device 100 serves to automatically supply the detergent stored in the storage unit 300 to the inside of the drum 30 in the washing step. Detergent means a material capable of enhancing the washing effect of laundry, and may include a powder or liquid fabric detergent and a liquid fabric softener.

2 shows a disassembled state of the detergent supply device 100 . The detergent supply device 100 may include a dispenser unit, a storage unit 300 and a supply case 400 from above as shown in FIG. 2 .

The dispenser unit may receive water from the outside and supply the supplied water back to the storage unit 300 or the supply case 400 . The storage unit 300 stores the detergent used in the washing process, etc., and the supply case 400 accommodates the storage unit 300 and is seated therein, and water discharged from the dispenser unit or the storage unit 300 . At least a portion of the detergent stored in the tub may be received and supplied to the tub 20 or the like.

The storage unit 300 stores detergent and may be drawn into or drawn out from the inside of the housing 10 through the opening 15 along the front-rear direction. The storage unit 300 may include a front handle portion 305 , a storage frame 340 , and a detergent storage container 306 and a detergent cup seated on the storage frame 340 .

In the present invention, the definition of the front and rear may be defined based on the position of the opening 15 in the housing 10 . For example, a direction from the inside of the housing 10 toward the opening 15 may correspond to the front, and the opposite direction may be defined as the rear.

In other words, a direction from the inside of the housing 10 toward the outside of the housing 10 through the opening 15 may be defined as a front, and a direction from the opening 15 to the inside of the housing 10 may be defined as a rearward.

That is, in the present invention, even when the door 40 and the opening 15 are provided on different surfaces of the housing 10 , the front and the rear may be defined based on the opening 15 .

A dispenser unit and a supply case 400 may be installed at the rear of the opening 15 in the housing 10 , and the storage unit 300 may be drawn into or withdrawn into the housing 10 through the opening 15 . can

3 shows the storage unit 300 drawn out of the housing 10 through the opening 15 as viewed from the outside of the housing 10 . The storage unit 300 of FIG. 3 may correspond to a shape that is retrieved by a preset retrieval distance by design, as will be described later.

In a state in which the storage unit 300 is drawn into the housing 10 through the opening 15 , the user grips the handle 305 provided in the front of the storage unit 300 and exposed to the outside of the housing 10 . After pulling, the storage unit 300 in the state drawn into the opening 15 is moved forward from the stacked state with the dispenser unit and the supply case 400 and pulled out to be exposed to the outside of the housing 10 . can

Similarly, when the user pushes the handle portion 305 to the rear side, the storage unit 300 may be inserted into the opening 15 while sliding.

2 and 3 , in an embodiment of the present invention, the storage unit 300 may be withdrawn by a set withdrawal distance determined by design by a stopper 210 to be described later. However, this limitation of the withdrawal distance is optional, and the user may withdraw the storage unit 300 as much as the set withdrawal distance or completely withdraw the storage unit 300 as needed.

In an embodiment of the present invention, the storage unit 300 may include a storage frame 340 , a detergent storage container 306 , and a detergent receiving area 307 . A detergent accommodating part and a detergent cup may be provided in the detergent accommodating area 307 .

The storage frame 340 may be drawn in and out of the housing 10 through the opening 15 in a state in which the detergent storage container 306 or the detergent cup is installed. The storage frame 340 may have a length extending in the front-rear direction, and may have an open upper surface so that a user can easily install the detergent storage container 306 and the detergent cup.

A movement method for the storage frame 340 to be drawn into or drawn out of the housing 10 through the opening 15 may be varied. For example, the supply case 400 may be provided with a sliding rail on which the storage frame 340 slides, and the storage frame 340 may be supported on the sliding rail and may be drawn in and out while being slid by a user.

In addition, a handle 305 may be provided in front of the storage frame 340 . The handle portion 305 may be provided so that the cross section viewed from the front is larger than the storage frame 340 to shield the opening 15 and not be exposed to the outside.

The detergent storage container 306 may have a storage space in which detergent is stored. The detergent storage container 306 is detachably installed in the storage frame 340 , and the user can separate the detergent storage container 306 to wash or exchange it as needed.

The detergent storage bin 306 may be installed on the storage frame 340 through the open upper surface of the storage frame 340 , and the number of the detergent storage bins 306 may vary as needed. 2 and 3 show a state in which two detergent storage containers 306 are provided and installed on the storage frame 340 according to an embodiment of the present invention.

On the other hand, the storage frame 340 may be provided with a detergent receiving area 307 in which the detergent is accommodated. A detergent accommodating part may be provided in the detergent accommodating area 307 , and the detergent accommodating part may be provided as a part of the storage frame 340 . For example, the detergent accommodating part may have a space in which the detergent is accommodated by the detergent accommodating wall protruding from the bottom surface of the storage frame 340 .

Detergent is accommodated in the detergent accommodating part separately from the detergent reservoir 306. For convenience of explanation, the detergent stored in the detergent reservoir 306 is divided into a first detergent, and in the detergent accommodating area 307, the detergent accommodating part is The stored detergent may be divided into a second detergent, and the detergent accommodated in the detergent cup in the detergent accommodating area 307 may be divided into a third detergent.

The first detergent, the second detergent, and the third detergent are only classified according to the object to be stored, and may not necessarily have different characteristics. An embodiment of the present invention has a plurality of areas in which detergents can be stored, so that a user can use various detergents.

The detergent accommodating part has an open upper surface so that detergent can be introduced therein. In a state in which the storage unit 300 is withdrawn from the housing 10, for example, in a state in which the storage unit 300 is withdrawn by a set withdrawal distance as shown in FIG. can

Meanwhile, the detergent cup may be installed in the storage frame 340 to be detachably disposed in the detergent receiving area 307 . The detergent accommodating area 307 may be divided into a detergent cup and a detergent accommodating part by installing a detergent cup.

The detergent cup has an open top surface so that detergent can be introduced. The detergent input to the detergent cup may be defined as a third detergent for classification, and the user may input and use the same or different detergents into the detergent storage container 306 , the detergent accommodating unit, and the detergent cup, respectively, as needed.

For example, a liquid detergent may be put into the detergent storage container 306 , a powdered detergent may be put into the detergent accommodating part, and a fabric softener may be put into the detergent cup as a type of detergent.

However, as described above, the first detergent, the second detergent, and the third detergent do not necessarily have to be different detergents, so the user may use the first, second, and third detergents of the same type, and the detergent storage container (306). ), the detergent accommodating part and the detergent cup may be stored in only one of the cups.

The detergent cup may be positioned adjacent to the detergent accommodating part. As the detergent accommodating part with the open upper surface and the detergent cup are positioned adjacent to each other, the user can conveniently separate the detergent accommodating part and the detergent cup without using the unnecessarily spaced detergent accommodating area 307 .

In addition, even if the storage unit 300 is not completely withdrawn as shown in FIG. 3 , the detergent cup adjacent to the detergent accommodating part is easily exposed to the outside of the housing 10 together with the detergent accommodating part, and the user can conveniently put detergent in. there can be an advantage

On the other hand, as described above, an embodiment of the present invention provides a housing 10 having an opening 15 provided at the front, a tub 20 installed inside the housing 10, and rotation inside the tub 20 . It includes a drum 30 that is possibly installed.

In addition, the storage unit 300 is drawn in and out of the housing 10 through the opening 15, and the detergent is stored therein. Meanwhile, an embodiment of the present invention may further include a fixing unit 200 .

The fixing unit 200 is fixed inside the housing 10 and may be provided to selectively limit a withdrawal distance of the storage unit 300 drawn into the housing 10 .

Unlike the storage unit 300 , the fixing unit 200 may have a fixed position inside the housing 10 , and may be provided to selectively limit the withdrawal distance of the storage unit 300 . Restriction of the withdrawal distance may be made through the stopper 210 as will be described later.

The fixing unit 200 may correspond to one configuration of the detergent supply device 100 . For example, the fixed unit 200 may be a dispenser unit or a supply case 400 , and may have a configuration coupled to the dispenser unit or the supply case 400 , and may be distinguished from the dispenser unit and the supply case 400 . It may be of a different configuration.

Hereinafter, for convenience of explanation, in an embodiment of the present invention, the fixing unit 200 is located above the storage unit 300 in the detergent supply device 100 to supply water to the storage unit 300 . It will be described as applicable to the dispenser unit.

However, the present invention is not necessarily limited thereto, and the fixed unit 200 may have a configuration other than the dispenser unit. The storage unit 300 may selectively limit the withdrawal distance by the fixing unit 200 .

Meanwhile, FIG. 4 shows a withdrawal limiting bar 310 and a withdrawal limiting protrusion 320 provided in the storage unit 300 according to an embodiment of the present invention, and in FIG. 5 according to an embodiment of the present invention. A stopper 210 and a pre-pressurizing unit 220 provided in the fixing unit 200 are shown. In addition, FIG. 6 shows the withdrawal limiting protrusion 320 pressed by the pre-pressurizing unit 220 during the withdrawal process.

4 to 6 , in an embodiment of the present invention, the storage unit 300 may include a withdrawal limiting bar 310 and a withdrawal limiting protrusion 320 . At least a portion of the withdrawal limiting bar 310 is provided such that the distance from the fixing unit 200 is variable by elastic deformation, and the withdrawal limiting protrusion 320 is moved from the withdrawal limiting bar 310 to the fixing unit 200 . can protrude toward the

The withdrawal limit bar 310 may be provided in various positions of the storage unit 300 . In an embodiment of the present invention, the withdrawal-limiting bar 310 may be provided to be exposed upwardly inside the storage frame 340 , and the withdrawal-limiting bar 310 may be located in the detergent receiving area 307 .

The withdrawal-limiting bar 310 may be provided so that the distance from the fixing unit 200 varies according to elastic deformation. That is, when the withdrawal limit bar 310 is pressed by the pre-pressurizing part 220 of the fixing unit 200, it is elastically deformed away from the fixing unit 200, and when the pressure is removed, it is restored and returned to its original position. can be returned

The material of the withdrawal limit bar 310 may be various. For example, the withdrawal limit bar 310 may be made of a metal or plastic material, or may be made of a composite material including a plurality of materials.

The shape of the withdrawal limiting bar 310 may vary. 4 shows a withdrawal limiting bar 310 provided in a plate shape extending along the front and rear directions according to an embodiment of the present invention.

The fixed unit 200 corresponding to the above-described dispenser unit may be disposed to face the upper surface, the side surface, or the lower surface of the storage unit 300 , and the fixed unit 200 is the storage unit 300 as shown in FIG. 6 . When positioned above, the withdrawal limiting bar 310 may extend in the front-rear direction and may be moved downward by being pressed by the pre-pressurizing unit 220 .

The withdrawal-limiting protrusion 320 may protrude from the withdrawal-limiting bar 310 toward the fixing unit 200 . 6, the fixing unit 200 is provided above the storage unit 300 according to an embodiment of the present invention, and the withdrawal limiting protrusion 320 protruding upward from the withdrawal limiting bar 310 is shown.

Meanwhile, the fixing unit 200 may include a stopper 210 and a pre-pressurizing unit 220 . The stopper 210 protrudes toward the storage unit 300 and comes into contact with the withdrawal limiting protrusion 320 in the process of withdrawing the storage unit 300 to limit the forward movement of the withdrawal limiting protrusion 320 . can be

The pre-pressurizing part 220 is spaced apart from the rear of the stopper 210 , and protrudes toward the storage unit 300 to move the withdrawal limiting protrusion 320 away from the fixing unit 200 during the withdrawal process. can be pressurized.

The withdrawal limiting protrusion 320 may selectively contact the stopper 210 according to the withdrawal speed in a state in which it is pressed by the pre-pressurizing unit 220 during the withdrawal process, thereby limiting the forward movement.

Specifically, the stopper 210 may protrude from the fixing unit 200 toward the storage unit 300 . The position and shape of the stopper 210 may vary. The stopper 210 may be provided on one surface from the fixed unit 200 toward the storage unit 300, and the one surface has a stepped shape so that the height is different in the front-rear direction, so that the step portion is the one of the present invention. It may be provided as a stopper 210 according to an embodiment. The stopper 210 may be provided in the form of a protrusion protruding from the fixing unit 200 .

The stopper 210 can limit the movement of the withdrawal limiting protrusion 320 by contacting the withdrawal limiting protrusion 320 of the storage unit 300 in the process of withdrawing the storage unit 300 and limiting the withdrawal limiting protrusion 320 . By restricting the movement of the storage unit 300 may be limited to the withdrawal distance.

For example, the storage unit 300 may be drawn into or withdrawn from the inside of the housing 10 through the opening 15 of the housing 10 in the front-rear direction. In the storage unit 300 fully retracted into the housing 10 , the withdrawal limiting protrusion 320 may be located at the rear of the stopper 210 .

In this case, the separation distance between the stopper 210 and the withdrawal limiting protrusion 320 may correspond to a set withdrawal distance of the storage unit 300 determined by design in an embodiment of the present invention. That is, in the process of withdrawing the storage unit 300 , the withdrawal limiting protrusion 320 moved forward may contact the stopper 210 , and the forward movement may be restricted by the stopper 210 .

In one embodiment of the present invention, the set withdrawal distance of the storage unit 300 can be effectively determined through the stopper 210 of the fixed unit 200 and the withdrawal limiting projection 320 of the storage unit 300, and the user can save By allowing the unit 300 to be withdrawn and used by a set withdrawal distance, it is possible to effectively improve the usability.

Meanwhile, the pre-pressurizing unit 220 may be located at the rear of the stopper 210 . That is, in a state in which the storage unit 300 is fully retracted, it is located in the pre-pressurizing unit 220 at the rear of the stopper 210 , and the withdrawal limiting protrusion 320 may be located in the rear of the pre-pressing unit 220 . . At least a portion of the stopper 210 , the pre-pressurizing unit 220 and the withdrawal limiting protrusion 320 may be provided to overlap in the front-rear direction.

Like the stopper 210 , the pre-pressurizing unit 220 may be provided to protrude from the fixing unit 200 toward the storage unit 300 . In addition, the pre-pressurizing unit 220 may be provided to press the withdrawal limiting protrusion 320 away from the fixing unit 200 in the process of withdrawing the storage unit 300 .

For example, referring to FIG. 6 , the lower end of the pre-pressurizing portion 220 may protrude so that the lower end is positioned lower than the upper end of the withdrawal-limiting protrusion 320 , and accordingly, the withdrawal-limiting protrusion 320 is formed by the pre-pressing unit 220 . It may be pressed in a direction away from the fixing unit 200 while in contact with, that is, downward in FIG. 6 .

The withdrawal-limiting protrusion 320 is provided on the withdrawal-limiting bar 310 , and since the withdrawal-limiting bar 310 is elastically deformed by pressure, the pre-pressurizing unit 220 limits the withdrawal by pressing the withdrawal-limiting projection 320 . The bar 310 may be elastically deformed. As the withdrawal-limiting bar 310 is elastically deformed, the position of the withdrawal-limiting protrusion 320 changes.

On the other hand, FIG. 6 shows the withdrawal limiting protrusion 320 whose position is changed by being pressed by the pre-pressurizing unit 220 in the process of withdrawing the storage unit 300 . 7 shows a state in which the withdrawal limiting projection 320 of FIG. 6 is moved forward and in contact with the stopper 210, and in FIG. 8, the withdrawal limiting projection 320 of FIG. 6 avoids the stopper 210, It is shown moving forward.

6 to 8, the withdrawal limiting protrusion 320 is selectively contacted with the stopper 210 according to the withdrawal speed in a state pressurized by the pre-pressurizing unit 220 during the withdrawal process to prevent forward movement. may be limited.

Specifically, in one embodiment of the present invention, the stopper 210 may be positioned in front of the withdrawal limiting projection 320 to limit the forward movement of the withdrawal limiting projection 320 . On the other hand, the withdrawal limiting protrusion 320 may be positioned so as to leave the stopper 210 in the front-rear direction in a state in which it is pressed by the pre-pressurizing unit 220 .

6 shows a state in which the withdrawal limiting protrusion 320 is moved downward from its original position by being pressed downward by the pre-pressurizing unit 220 . The withdrawal limiting protrusion 320 moved downward may be located below the stopper 210 . That is, the withdrawal limiting protrusion 320 may have a position deviated from the stopper 210 in the front-rear direction.

6 , the storage unit 300 may selectively limit the withdrawal distance by the stopper 210 according to the withdrawal speed. 7 shows a state in which the withdrawal distance is limited by the stopper 210 as the storage unit 300 is withdrawn at less than a reference withdrawal speed to be described later.

When the storage unit 300 of FIG. 6 is moved forward, the withdrawal-limiting bar 310 is restored and the withdrawal-limiting protrusion 320 returns to its original position. At this time, if the position of the withdrawal-limiting projection 320 is restored before the withdrawal-limiting projection 320 moves forward than the stopper 210, the contact between the stopper 210 and the withdrawal-limiting projection 320 is reduced as shown in FIG. can happen

In addition, if the withdrawal-limiting projection 320 is moved to the front side of the stopper 210 faster than the position restoration of the withdrawal-limiting projection 320, the contact between the withdrawal-limiting projection 320 and the stopper 210 is not made, as shown in FIG. The forward movement of the withdrawal limiting protrusion 320 is possible.

In FIG. 7 , the contact between the withdrawal-limiting protrusion 320 and the stopper 210 is possible even in a state in which the position of the withdrawal-limiting protrusion 320 is not completely restored. For example, if a portion of the withdrawal-limiting protrusion 320 is overlapped with the stopper 210 in the front-rear direction, the forward movement of the stopper 210 may be restricted in the withdrawal-limiting protrusion 320 as shown in FIG. 7 .

A reference withdrawal speed, which is a reference for limiting the contact between the withdrawal-limiting protrusion 320 and the stopper 210 and the forward movement of the withdrawal-limiting projection 320, may be determined by design. For example, the reference withdrawal speed may be determined by design according to the elastic force of the withdrawal-limiting bar 310 , the height of the pre-pressurizing unit 220 , the height of the stopper 210 , and the height of the withdrawal-limiting protrusion 320 .

In an embodiment of the present invention, the reference withdrawal speed may be determined statistically by repeatedly experimenting with the extraction process of the storage unit 300 , or may be determined in consideration of the strength of breakage of the withdrawal limiting protrusion 320 .

For example, when damage or breakage of the withdrawal-limiting protrusion 320 or the withdrawal-limiting bar 310 is observed as a result of repeated experiments at a specific speed and force, the withdrawal-limiting projection 320 or the withdrawal-limiting bar 310 is damaged. The retrieval speed of the storage unit 300 at which this may occur may be determined as a reference retrieval speed.

Accordingly, in one embodiment of the present invention, the user can effectively determine whether or not to limit the withdrawal of the storage unit 300 according to the reference withdrawal speed, and furthermore, the stopper 210 and the withdrawal limiting protrusion during the withdrawal process of the storage unit 300 Damage or breakage of the withdrawal limiting protrusion 320 and the like due to the collision of the 320 can be effectively prevented.

Meanwhile, in an embodiment of the present invention, the pre-pressurizing unit 220 may include a rear inclined surface 224 . The rear inclined surface 224 may be provided to increase the protruding height toward the front so as to press the withdrawal limiting protrusion 320 during the withdrawal process.

During the withdrawal process, the withdrawal limiting protrusion 320 is pressed by the rear inclined surface 224 to move from the first position to the second position, and the withdrawal limiting projection 320 at the first position is moved along the front-rear direction. The stopper 210 overlaps, and the withdrawal limiting protrusion 320 at the second position may be provided to escape the stopper 210 along the front-rear direction.

Specifically, the rear inclined surface 224 of the pre-pressurizing unit 220 may form the rear surface of the pre-pressing unit 220 . That is, in the storage unit 300 introduced into the housing 10 , the withdrawal limiting protrusion 320 may be located at the rear of the rear inclined surface 224 of the pre-pressurizing unit 220 .

The rear inclined surface 224 constitutes the rear surface of the pre-pressurizing unit 220 and is exposed to the rear, and in the process of withdrawing the storage unit 300 , the withdrawal limiting protrusion 320 is the rear inclined surface 224 of the pre-pressurizing unit 220 . can be pressurized by

The rear inclined surface 224 may be provided such that the height of the protrusion from the fixing unit 200 , for example, the dispenser unit, is gradually reduced toward the rear. The withdrawal limiting protrusion 320 may be pressed toward the storage unit 300 without being restricted from moving forward by the rear inclined surface 224 of the pre-pressurizing unit 220 .

The rear end of the rear inclined surface 224 may be provided so as not to protrude from the fixing unit 200 or to at least overlap the withdrawal limiting protrusion 320 in the front-rear direction so as not to obstruct the forward movement of the withdrawal limiting protrusion 320 .

When viewed from the side, the rear inclined surface 224 may have a straight and inclined shape, a curved and inclined shape, and may have a plurality of zones having different inclinations.

The rear inclined surface 224 increases the protrusion height from the fixing unit 200 toward the front from the rear, and accordingly, the withdrawal limiting projection 320 moves forward in the withdrawal process of the storage unit 300, the rear inclined surface ( 224) is increased, and the position may be changed so as to move away from the fixing unit 200 .

In an embodiment of the present invention, the original position of the withdrawal limiting protrusion 320 that is not pressed by the pre-pressurizing unit 220 may be defined as the first position, and the original position of the withdrawal-limiting protrusion 320 that is not pressed by the pre-pressurizing unit 220 can be defined as the first position, and the maximum changed by being pressed by the pre-pressing unit 220 . A location may be defined as a second location.

That is, the first position of the withdrawal limiting projection 320 may be a state in which the separation distance between the withdrawal limiting projection 320 and the fixing unit 200 is the minimum, and the second position of the withdrawal limiting projection 320 is the withdrawal limiting projection The separation distance between the 320 and the fixing unit 200 may be a maximum state.

In FIG. 6 , the withdrawal-limiting protrusion 320 at the first position is indicated by a dotted line, and the withdrawal-limiting protrusion 320 at the second position is indicated by a solid line. In FIG. 7 , the withdrawal limiting protrusion 320 in the second position is indicated by a dotted line, and the withdrawal limiting projection 320 in contact with the stopper 210 in the first position is indicated by a solid line.

The withdrawal-limiting protrusion 320 at the first position may at least partially overlap the stopper 210 along the front-rear direction, and the withdrawal-limiting protrusion 320 at the second position does not overlap the stopper 210 along the front-rear direction. may not be That is, the withdrawal limiting protrusion 320 at the second position may be positioned so as to leave the stopper 210 in the front-rear direction.

Also, the withdrawal limiting protrusion 320 at the first position may be positioned to overlap the pre-pressurizing unit 220 in the front-rear direction. Accordingly, as shown in FIG. 6 , the withdrawal limiting protrusion 320 at the first position is moved forward and the position is gradually changed by the rear inclined surface 224 of the pre-pressurizing unit 220 to move to the second position. have.

On the other hand, in an embodiment of the present invention, when the withdrawal limiting protrusion 320 is positioned at the second position and the withdrawal speed is less than the reference withdrawal speed, it is moved to the first position and comes into contact with the stopper 210 , , if the pull-out speed is equal to or greater than the reference pull-out speed, it may be moved forward past the stopper 210 before moving to the first position.

As described above, the reference pull-out speed may be determined in advance in the design stage, and the reference pull-out speed may be determined in consideration of user convenience or prevention of breakage and damage to the withdrawal limiting protrusion 320 or the like.

In the process of withdrawing the storage unit 300, the withdrawal limiting protrusion 320 is positioned at the second position before reaching the stopper 210 by the pre-pressurizing unit 220 as shown in FIG. 6, and at this time the storage unit 300 When the pull-out speed of is less than the reference pull-out speed, the pull-out limiting protrusion 320 is moved to the first position by elastic restoration of the pull-out limiting bar 310, and at least a portion of the pull-out limiting protrusion 320 moves before and after the stopper 210. direction can be overlapped.

When at least a portion of the withdrawal-limiting protrusion 320 contacts the stopper 210 in the front-rear direction, the withdrawal-limiting protrusion 320 is physically restricted from moving forward by the stopper 210 , and The forward movement of the storage unit 300 may also be restricted by the forward movement limitation.

As described above, the limited withdrawal distance of the storage unit 300 may correspond to the set withdrawal distance of the storage unit 300 according to an embodiment of the present invention. Even if the storage unit 300 is drawn out by the set withdrawal distance, the detergent inlet hole and the detergent receiving area 307 of the detergent storage container 306 may be exposed outside the opening 15 .

On the other hand, if the withdrawal speed of the storage unit 300 is equal to or greater than the reference withdrawal speed, after the pressurization of the pre-pressurizing unit 220 with respect to the withdrawal limiting projection 320 is finished, the withdrawal limiting projection 320 returns to the first position. In the process, before at least a portion of the withdrawal limiting projection 320 overlaps the stopper 210 in the overlapping direction, the withdrawal limiting projection 320 overlaps the stopper 210 in the vertical direction or is located in front of the stopper 210 . can be

In FIG. 8, the storage unit 300 is withdrawn at or above the reference withdrawal speed according to an embodiment of the present invention, and accordingly, the withdrawal limiting protrusion 320 of the second position indicated by the dotted line is moved to the position indicated by the solid line, and the stopper ( A state in which the withdrawal distance limitation of the storage unit 300 is not made is shown past 210).

Meanwhile, in an embodiment of the present invention, the pre-pressurizing unit 220 may have a protruding height greater than or equal to the protruding height of the stopper 210 . The withdrawal limiting protrusion 320 pressed by the pre-pressurizing unit 220 may be positioned so as not to overlap the stopper 210 in the front-rear direction at the second position.

The protrusion height of the pre-pressurizing unit 220 may be variously determined in relation to the height of the stopper 210 , the height of the withdrawal limiting protrusion 320 , the reference withdrawal speed, and the like, as described above.

Meanwhile, in an embodiment of the present invention, the withdrawal limiting projection 320 may include a front surface 322 of the projection and a rear surface 324 of the projection. 6 to 8, the projection front surface 322 and the projection rear surface 324 according to an embodiment of the present invention are shown.

The protrusion front surface 322 extends vertically from the withdrawal limiting bar 310 to selectively contact the stopper 210, and the protrusion rear surface 324 is the withdrawal limiting bar 310 toward the rear. It may be provided to be inclined so that the height protruding from it is reduced.

The protrusion front surface 322 may extend vertically from the withdrawal limiting bar 310 . One surface of the stopper 210 in contact with the protrusion front surface 322 may have an area and an inclination corresponding to the protrusion front surface 322 .

Accordingly, when the protrusion front surface 322 is in contact with the stopper 210, the withdrawal limiting protrusion 320 may be moved forward without moving in the vertical direction.

On the other hand, the protrusion rear surface 324 may be provided such that the height of the protrusion from the withdrawal limiting bar 310 decreases as it goes toward the rear. The protrusion rear surface 324 may be a plane having an inclination, a curved surface, or a plurality of planes having different inclinations, and the specific shape of the rear projection surface 324 may be variously determined.

The withdrawal limiting protrusion 320 can prevent a situation in which the rear movement is restricted by the stopper 210 and the pre-pressurizing unit 220 during the retraction of the storage unit 300 by the protrusion rear surface 324 having an inclined surface. .

For example, in an embodiment of the present invention, the stopper 210 may be provided to protrude from the fixing unit 200 by a predetermined distance along the front-rear direction, or may have a shape continuously protruding from the opening 15 .

However, since the withdrawal limiting protrusion 320 has a protrusion rear surface 324, even if it comes into contact with the stopper 210, it is pressed away from the fixed unit 200 by the inclined surface to change the position and move backward. may not be

Similarly, even if the withdrawal limiting protrusion 320 comes into contact with the pre-pressurizing part 220 in the process of drawing in the storage unit 300, the withdrawal limiting protrusion 320 moves away from the fixing unit 200 by the rear surface 324 of the protrusion. It can be continuously moved backward as the position is changed so that the

Meanwhile, in one embodiment of the present invention, as shown in FIGS. 6 to 8 , the pre-pressurizing unit 220 may further include a front inclined surface 222 . The front inclined surface 222 is located in front of the rear inclined surface 224, and may be provided to increase the protruding height toward the rear.

The front inclined surface 222 may form the front surface of the pre-pressurizing part 220 , and may be located at the rear of the stopper 210 . The front inclined surface 222 may be positioned to face the rear surface of the stopper 210 , and may be disposed rearwardly spaced apart from the rear surface of the stopper 210 .

The front inclined surface 222 may be provided such that the protruding height from the fixing unit 200 increases from the front to the rear. The front inclined surface 222 may be a plane having an arbitrary inclination, may be a curved surface, or may be formed of a plurality of planes having different inclinations.

The withdrawal limiting protrusion 320 may be induced to be moved away from the fixing unit 200 by the front inclined surface 222 in the process of retracting the storage unit 300 . That is, the front inclined surface 222 may be provided to change the position of the withdrawal limiting projection 320 in the vertical direction without limiting the rear movement of the withdrawal limiting projection 320 .

In one embodiment of the present invention, unnecessary rear movement restriction of the withdrawal limiting protrusion 320 in the process of retracting the storage unit 300 by the front inclined surface 222 of the pre-pressurizing part 220 can be prevented. The front inclined surface 222 may be provided in a shape corresponding to the projection rear surface 324 of the withdrawal limiting projection 320 .

In addition, the spaced space between the rear surface of the stopper 210 and the front inclined surface 222 may provide a sufficient volume in which the withdrawal limiting protrusion 320 can be inserted. For example, in a state in which the rear surface of the stopper 210 and the front surface 322 of the withdrawal limiting projection 320 are in contact, the front inclined surface 222 of the pre-pressurizing unit 220 is in contact with the rear surface 324 of the projection or It may be located behind the projection rear surface (324).

On the other hand, in an embodiment of the present invention, the withdrawal limiting bar 310 has a rear end 314 fixed to the storage unit 300 , a front end 312 forming a free end, and the withdrawal limiting protrusion 320 . ) may be pressed by the pre-pressurizing unit 220 through the elastic deformation.

4 shows a withdrawal limiting bar 310 in which the rear end 314 is coupled to the storage frame 340 and the front end 312 forms a free end. 6 to 8 illustrate the drawing-limiting bar 310 in which the position of the front end 312 is changed while the rear end 314 is fixed.

The withdrawal limit bar 310 may be made of an elastic material. For example, the withdrawal limit bar 310 may be made of a material capable of elastic deformation and elastic restoration, such as rubber, metal, plastic, and the like.

When the withdrawal-limiting protrusion 320 is pressed by the pre-pressurizing unit 220, the withdrawal-limiting bar 310 is pressed by the pre-pressing unit 220 through the withdrawal-limiting protrusion 320 to be elastically deformed at least in part. can

When at least a portion of the withdrawal-limiting bar 310 is elastically deformed, the separation distance of the front end 312 forming the free end may be changed from the fixing unit 200 . For example, when the withdrawal-limiting protrusion 320 has a second position than when the withdrawal-limiting protrusion 320 has a first position, the front end 312 of the withdrawal-limiting bar 310 is removed from the fixing unit 200 . It can be located further away.

The position of the withdrawal-limiting protrusion 320 provided to protrude on the withdrawal-limiting bar 310 may be changed by elastic deformation of the withdrawal-limiting bar 310 . For example, when the front end 312 of the withdrawal-limiting bar 310 is elastically deformed to move away from the fixing unit 200, the position of the withdrawal-limiting protrusion 320 may also be changed to be further away from the fixing unit 200 than its original position. have.

The withdrawal limiting bar 310 may be provided with a deformation inducing portion 316 in which elastic deformation is induced between the front end 312 and the rear end 314 so as to be easily deformed by pressing as described above. The deformation inducing part 316 may be formed to have a higher amount of deformation due to pressing than the rest of the withdrawal limiting bar 310 .

6 to 8, the deformation inducing part 316, which is located in front of the rear end 314 and extends while being bent in the vertical direction, is provided to increase the amount of deformation under pressure according to an embodiment of the present invention is shown.

On the other hand, in an embodiment of the present invention, the withdrawal limiting projection 320 is located between the front end 312 and the rear end 314 of the withdrawal limiting bar 310, and the withdrawal limiting projection 320 is in contact with the stopper 210 , the front end 312 may be exposed in front of the opening 15 .

Specifically, the withdrawal limiting protrusion 320 may protrude upward, for example, toward the fixing unit 200 between the front end 312 and the rear end 314 of the withdrawal limiting bar 310, and the withdrawal limiting protrusion ( In a state in which the 320 is in contact with the stopper 210 , the front end 312 of the withdrawal limiting bar 310 may be exposed to the outside of the opening 15 .

That is, in an embodiment of the present invention, when the storage unit 300 is withdrawn by the set withdrawal distance, the front end 312 of the withdrawal limit bar 310 may be exposed to the outside and may be disposed to be pressurized by the user. .

The front end 312 of the withdrawal limit bar 310 may be provided with a button portion 318 that the user can press using a finger or the like. The button part 318 may correspond to the front end 312 itself of the withdrawal limiting bar 310 , or may include a groove provided in the front end 312 to facilitate pressurization by the user.

That is, the front end 312 of the withdrawal-limiting bar 310 may include a button portion 318 , and the withdrawal-limiting protrusion 320 is contacted by the stopper 210 so that the storage unit 300 sets the set withdrawal distance. When the amount is withdrawn, the user moves the position of the front end 312 of the withdrawal-limiting bar 310 by pressing the front end 312 of the withdrawal-limiting bar 310, that is, the button 318 as needed, and this By forcibly moving the position of the withdrawal limiting protrusion 320 through the stopper 210 so as not to overlap with the stopper 210 , the withdrawal distance limitation can be released by the stopper 210 .

As described above, in one embodiment of the present invention, the user can determine whether or not to limit the withdrawal distance of the storage unit 300 by adjusting the withdrawal speed, as well as limit the withdrawal distance of the storage unit 300 by the stopper 210 . Even in this case, it is possible to determine whether or not to limit the withdrawal distance of the storage unit 300 by pressing the button 318 formed on the front end 312 of the withdrawal limiting bar 310, thereby improving the convenience of use.

Meanwhile, in an embodiment of the present invention, the fixing unit 200 may further include a guide rib 330 . The guide rib 330 protrudes from the fixing unit 200 and extends rearward from the stopper 210 so that the front end 312 of the withdrawal limiting bar 310 is in contact with the stopper 210 . can be provided to prevent it.

5 shows a guide rib 330 disposed laterally adjacent to the pre-pressurizing unit 220 according to an embodiment of the present invention.

The guide rib 330 is provided to prevent a situation in which the front end 312 of the withdrawal limit bar 310 is in contact with the stopper 210 and the withdrawal distance of the storage unit 300 is limited at a distance shorter than the set withdrawal distance. .

In an embodiment of the present invention, the front end 312 of the withdrawal limiting bar 310 forming the free end may be in contact with the stopper 210 for various reasons depending on the usage situation. For example, the position of the front end 312 of the withdrawal restriction bar 310 may be changed to be closer to the fixed unit 200 due to an external shock or an unspecified shaking of the storage unit 300 during the withdrawal process, and in this case, the withdrawal restriction may be restricted. The front end 312 of the bar 310 may be in contact with the stopper 210 contrary to the design intention, thereby limiting the withdrawal distance of the storage unit 300 unnecessarily.

In one embodiment of the present invention, in order to prevent the situation in which the front end 312 of the withdrawal limiting bar 310 comes into contact with the stopper 210 as described above, the guide rib 330 extending backward from the stopper 210 is can be provided.

The guide rib 330 extending backward from the stopper 210 while protruding from the fixing unit 200 toward the storage unit 300 has the front end 312 of the withdrawal limiting bar 310 in contact with the stopper 210 . can be prevented in advance.

The guide rib 330 is provided such that the protrusion height of the front end is greater than or equal to the protrusion height of the stopper 210, and the protrusion height decreases toward the rear. An open area 326 open in the front-rear direction may be formed in a portion facing the guide rib 330 to avoid the guide rib 330 .

As the guide rib 330 is provided to increase the protrusion height from the rear toward the front, the front end 312 of the withdrawal limiting bar 310 that comes into contact with the guide rib 330 in the process of withdrawing the storage unit 300 . As it moves forward, a change in position may be induced toward the storage unit 300 .

In addition, the guide rib 330 is provided such that the protrusion height of the front end positioned on the rear surface of the stopper 210 is greater than or equal to the protrusion height of the rear surface of the stopper 210 , so that the front end portion 312 of the withdrawal limiting bar 310 . may be able to completely escape the stopper 210 .

Meanwhile, in the withdrawal limiting protrusion 320 , an open region 326 may be formed in a region facing the guide rib 330 . The open area 326 of the withdrawal limiting protrusion 320 may have an open shape along the front-rear direction. That is, the withdrawal limiting protrusion 320 may be in the shape of a hole or groove through which the open area 326 passes in the front-rear direction.

Accordingly, in the process of withdrawing the storage unit 300 , the guide rib 330 faces the open area 326 of the withdrawal limiting projection 320 in the front and rear directions, and physical contact with the withdrawal limiting projection 320 is avoided. can be

Therefore, in an embodiment of the present invention, the front end 312 of the withdrawal limiting bar 310 can be prevented from contacting the stopper 210 by the guide rib 330, and the withdrawal limiting protrusion 320 is an open area. A contact with the guide rib 330 is avoided by 326 and may be selectively contacted with the stopper 210 .

The open area 326 of the withdrawal limiting protrusion 320 is opened toward the fixing unit 200 and may be an open space in the front-rear direction. The width of the open area 326 in the lateral direction of the fixing unit 200 may be greater than or equal to the width of the guide rib 330 .

Also, the depth of the open area 326 in the direction away from the fixing unit 200 may be greater than or equal to the maximum protrusion height of the guide rib 330 . 4 shows the withdrawal limiting bar 310 having the withdrawal limiting protrusion 320 in which the open area 326 is formed.

Meanwhile, in an embodiment of the present invention, the guide rib 330 is disposed at the center of the stopper 210 with respect to the lateral direction of the fixing unit 200 , and the pre-pressurizing part 220 is the guide rib It is provided on each of the lateral sides of the 330, the withdrawal limiting protrusion 320 may be located in the center of the open area 326.

In an embodiment of the present invention, the fixing unit 200 may be located above the storage unit 300 as shown in FIGS. 6 to 8 , and the guide rib 330 is located at the center of the rear side of the stopper 210 . It can be extended backwards.

In addition, as shown in FIG. 5 , the pre-pressurizing unit 220 may be provided as a pair and disposed on both sides of the guide rib 330 . The withdrawal limiting protrusion 320 may have an open area 326 formed on the central side thereof.

9 is a view showing the withdrawal limiting protrusion 320 viewed from the rear in a state in which the storage unit 300 is fully retracted according to an embodiment of the present invention. In FIG. 9 , the stopper 210 , the guide rib 330 , and the pre-pressurizing unit 220 are indicated by dotted lines or solid lines.

Referring to FIG. 9 , the stopper 210 , the pre-pressurizing unit 220 , and the withdrawal limiting protrusion 320 may be arranged such that at least a portion of each overlaps in the front-rear direction. An open area 326 that is opened in the front-rear direction may be formed in the center of the withdrawal-limiting protrusion 320 .

The open area 326 may be positioned to face the guide rib 330 . The depth and width of the open area 326 may be provided to be greater than the protruding height and width of the guide rib 330 to allow the guide rib 330 to pass therethrough.

The pre-pressurizing portions 220 disposed on both sides of the guide rib 330 may be provided to press portions located on both sides of the open area 326 in the withdrawal limiting protrusion 320 . That is, both ends of the withdrawal limiting protrusion 320 may be pressed by the pre-pressurizing unit 220 .

In addition, the withdrawal limiting protrusion 320 may be positioned so that both ends in the lateral direction face the stopper 210 in the front, and the forward movement may be restricted by being in contact with the stopper 210 .

Meanwhile, FIG. 10 shows the withdrawal limiting bar 310 separated from the storage frame 340 according to an embodiment of the present invention, and FIG. 11 shows the withdrawal limiting bar 310 of FIG. 10 as viewed from the rear side. This is shown.

10 and 11 , in an embodiment of the present invention, the storage unit 300 may further include a storage frame 340 in which detergent is stored, and the withdrawal limit bar 310 is a hook coupling part ( 350) and the insertion coupling part 360 may be further included. 12 shows a limiting bar coupling hole 342 into which the hook coupling part 350 and the insertion coupling part 360 are inserted in the storage frame 340 according to an embodiment of the present invention.

A hook coupling part 350 is provided on the rear end 314 of the withdrawal limiting bar 310 , includes a hook projection 352 , and extends toward the storage frame 340 to the storage frame 340 . can be inserted and bound to

That is, the hook coupling part 350 may extend along the coupling direction of the withdrawal limiting bar 310 , and the hook protrusion 352 may be inserted into the storage frame 340 to be fixed. 11 shows the hook coupling part 350 as viewed from the rear, and FIG. 13 is inserted into the storage frame 340 according to an embodiment of the present invention and the hook insertion part on which the hook protrusion 352 is hung from the side. The cross-section seen from is shown.

The hook coupling part 350 may extend from the rear end 314 of the withdrawal limiting bar 310 along the coupling direction of the withdrawal limiting bar 310 . For example, when the rear end 314 of the withdrawal limiting bar 310 is fastened to the storage frame 340 along the vertical direction as shown in FIG. 4 , the hook coupling part 350 is the rear end ( It extends downward from the 314 and may be inserted into the limit bar coupling hole 342 of the storage frame 340 .

On the other hand, the insertion coupling part 360 may be provided on the rear end 314 of the withdrawal limiting bar 310 , and extend toward the storage frame 340 to be inserted into the storage frame 340 . The insertion coupling part 360 and the hook coupling part 350 may be inserted into different limiting bar coupling holes 342 .

Referring to FIG. 4 , the insertion coupling unit 360 may extend from the withdrawal limiting bar 310 toward the storage frame 340 , and for example, the withdrawal limiting bar 310 is coupled to the storage frame 340 along the vertical direction. In this case, the insertion coupling portion 360 may extend downward from the rear end 314 of the withdrawal limiting bar 310 .

The position of the withdrawal limit bar 310 by the insertion coupling unit 360 may be fixed on the storage frame 340 , and the disconnection of the hook coupling unit 350 may be prevented, and the storage frame 340 . ) and the bond strength can be increased.

Specifically, the limit bar coupling hole 342 into which the insertion coupling part 360 is inserted in the storage frame 340 may be provided so that the cross section corresponds to the insertion coupling part 360, and the restriction bar coupling hole 342 ), the insertion coupling part 360 may contribute to fixing the rear end 314 of the withdrawal limiting bar 310 because the position movement is limited.

In addition, when the rotation of the withdrawal limit bar 310 occurs while the hook coupling part 350 is inserted and coupled to the storage frame 340 , there is room for the hook projection 352 to deviate from the storage frame 340 . . However, in one embodiment of the present invention, unnecessary positional movement or rotation of the withdrawal limiting bar 310 is restricted by the insertion coupling part 360 inserted into the storage frame 340 together with the hook coupling part 350, and thus The coupling of the hook coupling part 350 by the hook protrusion 352 can be effectively maintained.

10 and 11, the insertion coupling part 360 extending from the withdrawal limit bar 310 according to an embodiment of the present invention is shown, and in FIG. 14, the storage frame 340 according to an embodiment of the present invention is shown. A cross-section of the inserted insertion coupling part 360 as viewed from the rear is shown.

On the other hand, in an embodiment of the present invention, the insertion coupling part 360 is provided in plurality, and at least one of the plurality of insertion coupling parts 360 is extended longer than the other guide to be inserted into the storage frame 340 . It includes an extension part 362 , and the guide extension part 362 may be provided to guide the coupling position of the rest and the hook coupling part 350 .

10 and 11 show a withdrawal limiting bar 310 provided with a pair of insertion coupling parts 360 according to an embodiment of the present invention, and a guide extension is provided on one of the pair of insertion coupling parts 360 . A state in which the portion 362 is formed is shown.

Specifically, in one embodiment of the present invention, the insertion coupling portion 360 may be provided in plurality, the number may be variously determined as needed, and at least one of the insertion coupling portions 360 has a guide extension portion. (362) may be provided.

The insertion coupling portion 360 including the guide extension portion 362 may extend longer than the rest. That is, the insertion coupling portion 360 including the guide extension portion 362 may be provided with a longer length extending from the withdrawal limiting bar 310 than the rest.

A portion extending longer than the rest of the insertion coupling portion 360 including the guide extension portion 362 may correspond to the guide extension portion 362 . The guide extension part 362 may extend longer than the insertion coupling part 360 , and may be inserted into the storage frame 340 in preference to the insertion coupling part 360 .

In one embodiment of the present invention, at least a portion of the plurality of insertion coupling parts 360 may have a guide extension part 362 , and the guide extension part 362 may have an insertion coupling part 360 or a hook coupling part 350 . ) by being inserted into the storage frame 340 in preference to, it is possible to guide the coupling position of the remaining insertion coupling portion 360 and the hook coupling portion (350).

That is, in one embodiment of the present invention, the guide extension part 362 is inserted into the storage frame 340 with the highest priority in the process in which the withdrawal limit bar 310 is coupled to the storage frame 340, so that the remaining insertion coupling parts 360 and The hook coupling part 350 may be positioned at the correct coupling position.

13 and 14, the length of the insertion coupling part 360 including the guide extension part 362 according to an embodiment of the present invention is shown to be longer than the rest.

On the other hand, an embodiment of the present invention may further include a coupling support (364). The coupling support part 364 may protrude from the insertion coupling part 360 in a direction transverse to the extending direction of the insertion coupling part 360 to be supported on the storage frame 340 .

For example, when the insertion coupling part 360 extends downward from the withdrawal limiting bar 310 , the coupling support part 364 may be provided to protrude from the insertion coupling part 360 in the front-rear direction or in the lateral direction.

The withdrawal limiting bar 310 may be supported on the storage frame 340 by the coupling support 364 provided in the insertion coupling part 360 . For example, referring to FIG. 13 , when the insertion coupling part 360 protrudes downward from the withdrawal limiting bar 310 , the withdrawal limiting bar 310 is formed by the hook projection 352 of the hook coupling part 350 . Separation is prevented upward, and the forward and backward and lateral movements may be restricted by the hook coupling part 350 and the insertion coupling part 360 , and the downward movement may be restricted by the coupling support part 364 .

Referring to FIG. 13 , in an embodiment of the present invention, the insertion coupling part 360 extends downward from the withdrawal limiting bar 310 and has a length parallel to the front-back direction, and the coupling support part 364 is Provided in plurality, the plurality of coupling support parts 364 are a first coupling support part 365 protruding forward from the insertion coupling part 360 and a second coupling support part protruding laterally from the insertion coupling part 360 . (366).

The insertion coupling portion 360 may extend downward from the lower surface of the rear end 314 of the withdrawal limiting bar 310 . The insertion coupling portion 360 may have a length extending in the front-rear direction. The hook coupling part 350 may extend downward like the insertion coupling part 360 , and may have a length extended along the lateral direction.

The hook coupling part 350 may be provided between a pair of insertion coupling parts 360 . Any one of the pair of insertion coupling parts 360 may include a guide extension part 362 . In addition, the insertion coupling part 360 may include a first coupling support part 365 and a second coupling support part 366 .

The first coupling support portion 365 may protrude from the insertion coupling portion 360 in the front-rear direction. 13 shows a first coupling support part 365 protruding forward from the front end of the insertion coupling part 360 according to an embodiment of the present invention.

The second coupling support portion 366 may protrude from the insertion coupling portion 360 in the lateral direction. 13 shows a second coupling support portion 366 protruding laterally from the side of the insertion coupling portion 360 according to an embodiment of the present invention. When a pair of insertion coupling parts 360 are provided, the second coupling support parts 366 provided in each of the pair of insertion coupling parts 360 may protrude in a direction facing each other.

The lower end of the coupling support 364 may be positioned on the upper surface of the storage frame 340 to be supported. Accordingly, the insertion coupling part 360 may be supported on the storage frame 340 , and the withdrawal limiting bar 310 may be supported and fixed on the storage frame 340 .

Although the present invention has been shown and described with reference to specific embodiments, it is within the art that the present invention can be variously improved and changed without departing from the spirit of the present invention provided by the following claims. It will be obvious to those of ordinary skill in the art.

1: clothes treatment device 10: housing
15: opening 20: tub
30: drum 40: door
100: detergent supply device 200: fixed unit
210: stopper 220: pre-pressurization part
222: front inclined surface 224: rear inclined surface
300: storage unit 305: handle part
306: detergent storage container 307: detergent receiving area
310: withdrawal limit bar 316: deformation inducing part
318: button portion 320: withdrawal limiting projection
322: front surface of projection 324: rear surface of projection
330: guide rib 340: storage frame
342: limit bar coupling hole 350: hook coupling part
352: hook projection 360: insertion coupling part
362: guide extension 364: coupling support
365: first coupling support 366: second coupling support
400: supply case

Claims (15)

a housing having an opening in the front;
a tub installed inside the housing;
a drum rotatably installed inside the tub;
a storage unit that is drawn into and withdrawn from the housing through the opening and stores detergent therein; and
A fixing unit fixed to the inside of the housing and provided to selectively limit a withdrawal distance of the storage unit introduced into the housing;
The storage unit is
At least a portion of the withdrawal limiting bar provided so that the distance to the fixing unit is variable by elastic deformation; and
Containing;
The fixed unit is
a stopper protruding toward the storage unit and provided to contact the withdrawal-limiting protrusion in the process of withdrawing the storage unit to limit the forward movement of the withdrawal-limiting protrusion; and
It includes; a pre-pressurizing part that is spaced apart from the rear of the stopper, protrudes toward the storage unit, and presses the withdrawal limiting protrusion in a direction away from the fixing unit during the withdrawal process.
The withdrawal limiting protrusion is selectively contacted with the stopper according to a withdrawal speed while being pressed by the pre-pressurizing unit during the withdrawal process to restrict forward movement. According to claim 1,
The pre-pressurizing unit,
It includes; a rear inclined surface provided to increase the protruding height toward the front and to press the withdrawal limiting protrusion during the withdrawal process;
In the withdrawal process, the withdrawal limiting projection is pressed by the rear inclined surface and moved from the first position to the second position,
The withdrawal-limiting protrusion at the first position overlaps the stopper along a front-rear direction, and the withdrawal-limiting protrusion at the second position deviates from the stopper along the front-rear direction. 3. The method of claim 2,
The withdrawal limiting protrusion is moved to the first position and in contact with the stopper when the withdrawal speed is less than the reference withdrawal speed while being positioned at the second position, and returns to the first position when the withdrawal speed is greater than or equal to the reference withdrawal speed. A laundry treatment apparatus that moves forward past the stopper before being moved. 3. The method of claim 2,
and the pre-pressurizing unit has a protrusion height greater than or equal to a protrusion height of the stopper. 3. The method of claim 2,
The withdrawal limiting projection,
a protrusion front surface extending vertically from the withdrawal limiting bar and selectively contacting the stopper; and
and a rear surface of the projection provided to be inclined so that the height protruding from the withdrawal-limiting bar decreases as it goes toward the rear. 6. The method of claim 5,
The pre-pressurizing unit,
and a front inclined surface positioned in front of the rear inclined surface and provided to increase a protruding height toward the rear. According to claim 1,
The withdrawal limiting bar has a rear end fixed to the storage unit, a front end forming a free end, and is elastically deformed by being pressed by the pre-pressurizing part through the withdrawal limiting protrusion. 8. The method of claim 7,
The withdrawal limiting protrusion is positioned between the front end and the rear end of the withdrawal limiting bar, and the front end is exposed in front of the opening while the withdrawal limiting protrusion is in contact with the stopper. 9. The method of claim 8,
The fixed unit is
and a guide rib protruding from the fixing unit and extending rearwardly from the stopper to prevent the front end of the withdrawal limiting bar from coming into contact with the stopper. 10. The method of claim 9,
The guide rib is provided such that the protrusion height of the front end is greater than the protrusion height of the stopper, and the protrusion height decreases toward the rear,
The withdrawal limiting protrusion is provided to avoid the guide rib by forming an open area in the front-rear direction at a portion facing the guide rib in the front-rear direction. 11. The method of claim 10,
The guide rib is disposed at the center of the stopper with respect to the lateral direction of the fixing unit,
The pre-pressurizing portion is provided on both sides of the guide rib in the lateral direction,
The withdrawal limiting protrusion is a laundry treatment apparatus in which the open area is located in the center. 8. The method of claim 7,
The storage unit is
It further includes; a storage frame in which the detergent is stored therein;
The withdrawal limit bar is,
a hook coupling part provided at the rear end of the withdrawal limiting bar, including a hook projection, extending toward the storage frame and inserted and coupled to the storage frame; and
and an insertion coupling part provided at the rear end of the withdrawal limit bar, extending toward the storage frame and inserted into the storage frame. 13. The method of claim 12,
The insertion coupling portion is provided in plurality,
At least one of the plurality of insertion coupling parts is extended longer than the rest and includes a guide extension part inserted into the storage frame,
The guide extension part is provided to guide a coupling position of the rest and the hook coupling part. 13. The method of claim 12,
and a coupling support part protruding from the insertion coupling part in a direction transverse to the extension direction of the insertion coupling part and supported on the storage frame. 15. The method of claim 14,
The insertion coupling portion extends downward from the withdrawal limiting bar,
It has a length parallel to the front-back direction,
The coupling support portion is provided in plurality,
The plurality of coupling support parts,
a first coupling support part protruding forward from the insertion coupling part; and
and a second coupling support part protruding laterally from the insertion coupling part.

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