Clothing processing apparatus and method for manufacturing tub

Abstract

Provided are a clothing processing apparatus and a method for manufacturing a tub. The clothing processing apparatus comprises: a tub; a drum rotatably provided inside the tub; a rotary shaft connected to the drum; and a bearing housing configured to support the rotary shaft. The tub includes a tub back provided on a rear surface of the tub and coupled to the bearing housing. The bearing housing includes a hub for supporting the rotary shaft to extend through the tub back, a flange extending from the hub toward an outer circumferential surface of the tub back and inserted into the tub back, and a holder provided on an outer circumference of the flange and having a holder groove. The outer circumferential surface of the tub back covers at least a portion of the holder.

Description

Method for manufacturing a clothing treatment device and tub

[0001] The present disclosure relates to a garment treatment device and a method for manufacturing a tub.

[0002] A garment treatment device is a device for treating and / or managing garments. The garment treatment device may include a washing machine and a dryer. The washing machine may include a combined washing machine and dryer.

[0003] A washing machine with a dryer is a device that uses the driving force of a motor to mix laundry, water, and detergent inside a tub together, thereby washing through friction between them.

[0004] The cycles performed by a washing machine with a dryer may include a washing cycle in which detergent and water are supplied to a tub containing laundry and the drum is rotated to wash the laundry, a rinsing cycle in which water is supplied to the tub and the drum is rotated to rinse the laundry, and a dehydration cycle in which water is discharged from the tub and the drum is rotated to remove moisture from the laundry.

[0005] The cycle performed by a washing machine with a dryer may include a drying cycle in which heat generated by a drying device is blown into a space containing laundry to dry laundry. The washing machine with a dryer may include a drying device to perform the drying cycle.

[0006] One aspect of the present disclosure provides an improved garment treatment device and method of manufacturing a tub to prevent deformation of a bearing housing when injection molding the tub.

[0007] One aspect of the present disclosure provides a garment treatment device and a method of manufacturing a tub to prevent the tub bag from being incompletely formed due to deformation of the bearing housing.

[0008] One aspect of the present disclosure provides an improved garment treatment device and method of manufacturing a tub to prevent a decrease in strength or rigidity of a tub bag.

[0009] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0010] A garment treatment device according to one embodiment of the present disclosure may include a tub, a drum rotatably provided inside the tub, a rotary shaft connected to the drum, and a bearing housing configured to support the rotary shaft. The tub may include a tub back provided at a rear side of the tub and to which the bearing housing is coupled. The bearing housing may include a hub that supports the rotary shaft and penetrates the tub back, a flange that extends from the hub toward an outer circumference of the tub back and is inserted into the tub back, and a holder that is provided on an outer circumference of the flange and has a holder groove (130a). The outer circumference of the tub back may cover at least a portion of the holder.

[0011] A method for manufacturing a tub of a clothing treatment device according to one embodiment of the present disclosure may include a method for manufacturing a tub for injection molding a tub of a clothing treatment device, the method including engaging a holder core of an injection mold with a holder provided on an outer periphery of a flange of a bearing housing provided to be coupled to a rear wall of the tub, and injecting an injection material into the injection mold into which the bearing housing is inserted.

[0012] A garment treatment device according to one embodiment of the present disclosure may include a tub including a tub opening formed at a front side and a tub back formed at a rear side, a drum rotatably provided inside the tub, a rotation shaft connected to the drum, and a bearing housing coupled to the tub back and supporting the rotation shaft. The tub back may include a tub groove formed on an outer circumferential surface of the tub back, and a groove wall formed around the tub groove and protruding from the outer circumferential surface of the tub back. The bearing housing may include a hub penetrating the tub back, a flange inserted into the tub back and extending from the hub toward the outer circumferential surface of the tub back, and a holder groove formed at a position corresponding to the tub groove, protruding from the outer circumferential surface of the flange, and covered by the outer circumferential surface of the tub back.

[0013] FIG. 1 is a perspective view illustrating a garment treatment device according to one embodiment of the present disclosure.

[0014] FIG. 2 is a cross-sectional view of a garment treatment device according to one embodiment of the present disclosure.

[0015] FIG. 3 is a drawing illustrating a part of a configuration arranged inside a garment treatment device according to one embodiment of the present disclosure.

[0016] FIG. 4 is a drawing illustrating a part of a configuration arranged inside a garment treatment device according to one embodiment of the present disclosure.

[0017] FIG. 5 is an exploded view showing a partial configuration of a garment treatment device according to one embodiment of the present disclosure.

[0018] FIG. 6 is a drawing illustrating a tub back and bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0019] FIG. 7 is an enlarged view of a tub home provided in a tub back of a garment treatment device according to one embodiment of the present disclosure.

[0020] FIG. 8 is an enlarged view of a holder provided in a bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0021] FIG. 9 is a drawing illustrating a tub home and holder of a garment treatment device according to one embodiment of the present disclosure.

[0022] FIG. 10 is a drawing illustrating a tub home and holder of a garment treatment device according to one embodiment of the present disclosure.

[0023] FIG. 11 is a drawing illustrating an injection mold for injection molding a bearing housing and a tub of a garment treatment device according to one embodiment of the present disclosure.

[0024] FIG. 12 is a drawing showing a state in which a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0025] FIG. 13 is a cross-sectional view showing a state in which a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0026] FIG. 14 is a schematic drawing showing a holder core of an injection mold engaged with a holder provided in a bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0027] FIG. 15 is a schematic drawing illustrating an example of a state in which a portion of a bearing housing is deformed while a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0028] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0029] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0030] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0031] In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" may include any one of the items listed together in that phrase, or all possible combinations thereof.

[0032] The term “and / or” includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0033] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0034] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0035] The terms “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0036] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0037] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0038] Washing machines according to various embodiments can perform washing, rinsing, spin-drying, and drying processes. A washing machine is an example of a clothing treatment device, and the term "clothing treatment device" encompasses devices that wash clothing (laundry items, drying items), devices that dry clothing, and devices that can perform both washing and drying of clothing.

[0039] Washing machines according to various embodiments may include top-loading washing machines in which the laundry inlet for loading or removing laundry is provided facing upward, or front-loading washing machines in which the laundry inlet is provided facing forward. Washing machines according to various embodiments may include washing machines of other loading methods other than top-loading washing machines and front-loading washing machines.

[0040] In the case of a top-loading washing machine, laundry can be washed using a water current generated by a rotating body such as a pulsator. In the case of a front-loading washing machine, laundry can be washed by rotating the drum to repeatedly raise and lower the laundry. The front-loading washing machine may include a washing machine with a dryer that can dry the laundry contained inside the drum. The washing machine with a dryer may include a hot air supply device for supplying high-temperature air into the drum and a condensing device for removing moisture from the air discharged from the drum. For example, the washing machine with a dryer may include a heat pump device. The washing machine according to various embodiments may include a washing machine with a washing method other than the washing method described above.

[0041] Washing machines according to various embodiments may include a housing that accommodates various components therein. The housing may be provided in the form of a box with a laundry inlet formed on one side.

[0042] A washing machine may include a door for opening and closing the laundry compartment. The door may be rotatably mounted to the housing by a hinge. At least a portion of the door may be transparent or translucent to allow the interior of the housing to be viewed.

[0043] A washing machine may include a tub provided within a housing to store water. The tub may be provided in a generally cylindrical shape with a tub opening formed on one side, and may be positioned within the housing such that the tub opening corresponds to a laundry inlet.

[0044] The tub may be connected to the housing by a damper. The damper can absorb vibrations generated when the drum rotates, thereby reducing the vibrations transmitted to the housing.

[0045] A washing machine may include a drum configured to accommodate laundry.

[0046] The drum may be positioned within the tub such that the drum opening provided on one side corresponds to the laundry inlet and the tub opening. Laundry may be sequentially passed through the laundry inlet, the tub opening, and the drum opening to be accommodated within the drum or taken out from the drum.

[0047] The drum rotates within the tub and can perform each of the washing, rinsing, and / or dehydration operations. The cylindrical wall of the drum is formed with a number of perforations, allowing water stored in the tub to flow into or out of the drum.

[0048] A washing machine may include a drive device configured to rotate a drum. The drive device may include a drive motor and a rotating shaft for transmitting driving force generated by the drive motor to the drum. The rotating shaft may be connected to the drum by penetrating the tub.

[0049] The driving device can rotate the drum forward or backward to perform each operation according to the washing, rinsing, and / or dehydration, or drying cycle.

[0050] A washing machine may include a water supply device configured to supply water to a tub. The water supply device may include a water supply pipe and a water supply valve provided on the water supply pipe. The water supply pipe may be connected to an external water source. The water supply pipe may extend from the external water source to a detergent supply device and / or the tub. Water may be supplied to the tub via the detergent supply device. Water may be supplied to the tub without passing through the detergent supply device.

[0051] The water supply valve can open or close the water supply pipe in response to an electrical signal from the control unit. The water supply valve can allow or block the supply of water to the tub from an external water source. The water supply valve may include, for example, a solenoid valve that opens and closes in response to an electrical signal.

[0052] A washing machine may include a detergent supply device configured to supply detergent to a tub. The detergent supply device may include a manual detergent supply device that requires a user to add detergent for each wash cycle, and an automatic detergent supply device that stores a large amount of detergent and automatically supplies a predetermined amount of detergent during a wash cycle. The detergent supply device may include a detergent compartment for storing detergent. The detergent supply device may be configured to supply detergent into the tub during a water supply process. Water supplied through a water supply pipe may be mixed with detergent via the detergent supply device. The water mixed with detergent may be supplied into the tub. Detergent is used as a comprehensive term for pre-wash detergent, main wash detergent, fabric softener, bleach, etc., and the detergent compartment may be divided into a pre-wash detergent storage area, a main wash detergent storage area, a fabric softener storage area, and a bleach storage area.

[0053] A washing machine may include a drainage device configured to discharge water contained in a tub to the outside. The drainage device may include a drain pipe extending from the bottom of the tub to the outside of the housing, a drain valve provided in the drain pipe to open and close the drain pipe, and a pump provided on the drain pipe. The pump may pump water in the drain pipe to the outside of the housing.

[0054] The washing machine may include a control panel positioned on one side of the housing. The control panel may provide a user interface for a user to interact with the washing machine. The user interface may include at least one input interface and at least one output interface.

[0055] At least one input interface can convert sensory information received from a user into an electrical signal.

[0056] At least one input interface may include a power button, an operation button, a course selection dial (or a course selection button), and a wash / rinse / spin setting button. The at least one input interface may include, for example, a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and / or a microphone.

[0057] At least one output interface can visually or audibly convey information related to the operation of the washing machine to the user.

[0058] For example, at least one output interface may transmit information related to the washing cycle and operating time of the washing machine, as well as washing / rinsing / spin settings to the user. Information related to the operation of the washing machine may be output via a screen, indicator, voice, etc. At least one output interface may include, for example, a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, a speaker, etc.

[0059] The washing machine may include a communication module for communicating with external devices via wires and / or wirelessly.

[0060] The communication module may include at least one of a short-range communication module or a long-range communication module.

[0061] The communication module can transmit data to or receive data from external devices (e.g., a server, a user device, and / or a home appliance). For example, the communication module can establish communication with a server, a user device, and / or a home appliance, and transmit and receive various data.

[0062] To this end, the communication module may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between external devices, and the performance of communication through the established communication channel. According to one embodiment, the communication module may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with the external device via a first network (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips).

[0063] The short-range wireless communication module may include, but is not limited to, a Bluetooth communication module, a BLE (Bluetooth Low Energy) communication module, a near field communication module, a WLAN (Wi-Fi) communication module, a Zigbee communication module, an infrared (IrDA, infrared Data Association) communication module, a WFD (Wi-Fi Direct) communication module, an UWB (ultrawideband) communication module, an Ant+ communication module, a microwave (uWave) communication module, etc.

[0064] The long-distance communication module may include a communication module that performs various types of long-distance communication and may include a mobile communication unit. The mobile communication unit transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network.

[0065] In one embodiment, the communication module can communicate with external devices such as a server, a user device, and other home appliances through a peripheral access point (AP). The access point (AP) can connect a local area network (LAN) to which the washing machine or the user device is connected to a wide area network (WAN) to which the server is connected. The washing machine or the user device can be connected to the server through the wide area network (WAN). The control unit can control various components of the washing machine, such as a drive motor and a water inlet valve. The control unit can control various components of the washing machine to perform at least one cycle, including water supply, washing, rinsing, and / or spin-drying, according to a user input. For example, the control unit can control the drive motor to adjust the rotation speed of the drum, or control the water inlet valve of the water supply device to supply water to the tub.

[0066] The control unit may include hardware such as a CPU or memory, and software such as a control program. For example, the control unit may include an algorithm for controlling the operation of components within the washing machine, at least one memory storing program-type data, and at least one processor performing the aforementioned operation using data stored in the at least one memory. The memory and the processor may each be implemented as separate chips. The processor may include one or more processor chips or one or more processing cores. The memory may include one or more memory chips or one or more memory blocks. Additionally, the memory and the processor may be implemented as a single chip.

[0067] Hereinafter, various embodiments of a garment treatment device will be specifically described with reference to the attached drawings. While a washing machine / dryer is described as an example of a garment treatment device, the concepts of the present disclosure are not limited to washing machines / dryers, and can be applied to various devices for treating and / or managing garments.

[0068] In describing various embodiments of the present disclosure with reference to FIGS. 1 to 15, the terms “upper,” “lower,” “front,” “rear,” “left,” “right,” etc. used in the following description are defined based on the drawings, and the shape and position of each component are not limited by these terms. For example, the terms “upper” and “lower” below may mean upper in the Z direction and lower in the Z direction, respectively, based on the drawings. The terms “front” and “rear” below may mean front and rear in the X direction, respectively, based on the drawings. The terms “left” and “right” below may mean left in the Y direction and right in the Y direction, respectively, based on the drawings.

[0069] FIG. 1 is a perspective view illustrating a garment treatment device according to one embodiment of the present disclosure. FIG. 2 is a cross-sectional view of a garment treatment device according to one embodiment of the present disclosure. FIG. 3 is a diagram illustrating a portion of a component arranged inside a garment treatment device according to one embodiment of the present disclosure. FIG. 4 is a diagram illustrating a portion of a component arranged inside a garment treatment device according to one embodiment of the present disclosure. FIG. 5 is an exploded view illustrating a portion of a component of a garment treatment device according to one embodiment of the present disclosure.

[0070] Referring to FIGS. 1 to 5, a garment treatment device (1) according to one embodiment of the present disclosure may include a housing (10) provided to accommodate various components of the garment treatment device (1).

[0071] The housing (10) may form the exterior of the garment treatment device (1). For example, the housing (10) may be provided in an approximately hexahedral shape. For example, the housing (10) may be provided in an approximately box shape. The housing (10) may include frames (10a, 10b, 10c, 10d, 10e). The frames (10a, 10b, 10c, 10d, 10e) may each include an upper frame (10a) forming the upper surface of the housing (10), a front frame (10b) forming the front surface of the housing (10), a rear frame (10c) forming the rear surface of the housing (10), a side frame (10d) connecting the front frame (10b) and the rear frame (10c) and forming the side surface of the housing (10), and a lower frame (10e) connecting the front frame (10b) and the rear frame (10c) and forming the lower surface of the housing (10).

[0072] A laundry inlet (12) for loading laundry into the drum (30) or removing laundry from the drum (30) may be formed on the front frame (10b) of the housing (10). The laundry inlet (12) may be opened and closed by a door (13) installed on the front frame (10b) of the housing (10).

[0073] The garment treatment device (1) may include a door (13). The door (13) may be configured to open and close the laundry inlet (12). The door (13) may be rotatably mounted to the housing (10) by a hinge. At least a portion of the door (13) may be transparent or translucent to allow the interior of the housing (10) to be visible. For example, the door (13) may include tempered glass.

[0074] The garment treatment device (1) may include a lower door (18) configured to provide access to a lower detergent supply device (95a). For example, the lower door (18) may be coupled to the lower portion of the front frame (10b) of the housing (10).

[0075] The garment treatment device (1) may include an upper door (19) configured to provide access to the upper detergent supply device (95b) and the filter (81). For example, the upper door (19) may be coupled to the upper portion of the front frame (10b) of the housing (10).

[0076] A control panel (11) for controlling the operation of the garment treatment device (1) may be provided on the front frame (10b) of the housing (10). For example, the control panel (11) may be provided on the upper portion of the front frame (10b). The control panel (11) may provide a user interface for interaction between a user and the garment treatment device (1). An input unit for inputting the operation of the garment treatment device (1) may be provided on the control panel (11). A display for displaying various types of information regarding the garment treatment device (1) may be provided on the control panel (11). For example, the control panel (11) may include a display panel capable of touch input. However, the present invention is not limited thereto, and the control panel (11) may include various types of input units and displays.

[0077] The clothing treatment device (1) may include a tub (20). The tub (20) may be provided to store water to be used in a washing process or a rinsing process, etc. The tub (20) may be placed inside the housing (10).

[0078] The tub (20) may include a tub opening formed on one side. The tub opening may be provided so that laundry may be fed into the tub (20). The tub opening may be provided so as to face approximately the front of the clothes treatment device (1). The tub opening may be arranged to correspond to the laundry inlet (12). The tub opening may be arranged inside the housing (10). The tub (20) may have a cylindrical shape with the tub opening formed on approximately one side.

[0079] The tub (20) may include a tub body (21). The tub body (21) may form an outer surface of the tub (20). The tub body (21) may form a cylindrical outer surface of the tub (20). A tub opening may be provided on the front of the tub body (21).

[0080] The tub (20) may include a tub back (200). The tub back (200) may form the rear of the tub (20). The tub back (200) may be provided on the rear of the tub body (21). The tub back (200) may cover the rear of the tub body (21). The tub back (200) may be provided on the side opposite to the tub opening of the tub (20).

[0081] A detailed description of the components included in the tub (20) will be described later.

[0082] The clothing treatment device (1) may include a water supply device (90) configured to supply water to the tub (20). For example, the water supply device (90) may be placed on the upper portion of the tub (20). For example, the water supply device (90) may be placed at the rear of the drying device (70) described below.

[0083] The clothes treatment device (1) may include a detergent supply device (95) for supplying detergent to the tub (20). The detergent supply device (95) may include an upper detergent supply device (95b) and a lower detergent supply device (95a). The upper detergent supply device (95b) may be arranged at the lower portion of the tub (20). The lower detergent supply device (95a) may be arranged at the upper portion of the tub (20). The term "detergent" may be used as a comprehensive term for pre-wash detergent, main wash detergent, fabric softener, bleach, etc.

[0084] The clothing treatment device (1) may include a drainage device (93) configured to discharge water contained in the tub (20) to the outside. The drainage device (93) may be arranged at the bottom of the tub (20). The drainage device (93) may include a drainage pump (93a) for discharging water inside the tub (20) to the outside of the housing (10), a connection hose (93b) for connecting the tub (20) and the drainage pump (93a) so that water inside the tub (20) can flow into the drainage pump (93a), and a drainage hose for guiding water pumped by the drainage pump (93a) to the outside of the housing (10).

[0085] The tub (20) can be supported by a damper (16). The tub (20) can be connected to the housing (10) by the damper (16). The damper (16) can connect the lower frame (10e) of the housing (10) and the outer surface of the tub (20). In addition to the lower frame of the housing (10), the damper (16) can be positioned on the upper side, left and right sides to support the tub (20). The damper (16) can absorb vibration generated when the drum (30) rotates and attenuate vibration transmitted to the housing (10).

[0086] The garment treatment device (1) may include a drum (30). The drum (30) may be configured to accommodate laundry. The drum (30) may be placed inside the housing (10). The drum (30) may be placed inside the tub (20).

[0087] The drum (30) may be provided to be rotatable within the tub (20). The drum (30) may be provided to be rotatable within the tub (20) by receiving power from the driving device (40). The drum (30) may perform each operation according to the washing, rinsing, and / or dehydration process while rotating within the tub (20). A plurality of holes (32a) are formed in the cylindrical wall of the drum (30) so that water stored in the tub (20) may flow into the inside of the drum (30) or flow out from the outside of the drum (30).

[0088] The drum (30) may include a drum opening formed on one side. The drum opening may be provided so that laundry may be fed into the drum (30). The drum opening may be provided so as to face approximately the front of the clothes treatment device (1). The drum opening may be arranged to correspond to the laundry inlet (12) and the tub opening. The drum opening may be arranged inside the housing (10). The drum opening may be arranged inside the tub (20). The drum (30) may have a cylindrical shape with the drum opening formed on approximately one side.

[0089] The drum (30) may include a drum body (32). The drum body (32) may form an outer circumferential surface of the drum (30). The drum body (32) may form a cylindrical outer circumferential surface of the drum (30). The drum body (32) may be formed in a substantially cylindrical shape with open front and rear ends and a hollow space. A plurality of holes (32a) are formed in the drum body (32) so that water stored in the tub (20) may flow into the drum (30) or be discharged to the outside of the drum (30). At least one lifter (33) may be installed on the inner circumferential surface of the drum body (32) so that laundry may rise and fall when the drum (30) rotates.

[0090] The drum (30) may include a drum front (31). The drum front (31) may form the front of the drum (30). The drum front (31) may be arranged at the front end of the drum body (32). The drum front (31) may be formed with a drum opening that opens forward so that laundry may be fed into the drum (30). The drum front (31) may be provided to correspond to the front opening of the drum body (32).

[0091] The drum (30) may include a drum back (34). The drum back (34) may form a rear wall of the drum (30). The drum back (34) may be positioned at the rear end of the drum body (32). The drum back (34) may be provided to correspond to the rear opening of the drum body (32).

[0092] The drum bag (34) can cover the rear opening of the drum body (32). The drum bag (34) can have a roughly circular shape. In one embodiment, the drum bag (34) can have a plurality of holes formed therein to allow air to circulate well from the inside to the outside of the drum.

[0093] The garment treatment device (1) may include a driving device (40) configured to rotate a drum (30). The driving device (40) may include a driving motor (42) configured to generate power. The driving device (40) may be arranged on the outside of the tub (20). For example, the driving motor (42) may be arranged at the rear of the tub (20).

[0094] The driving motor (42) may include a stator fixed to the outside of the tub back (200) and a rotor rotatably provided and connected to a rotating shaft (41). The stator may electromagnetically interact with the rotor to convert rotational electrical power into mechanical rotational power. When the rotor rotates, the rotational power may be transmitted to the drum (30) through the rotating shaft (41) connected to the rotor.

[0095] The driving device (40) may include a rotating shaft (41). The rotating shaft (41) may be provided to transmit power generated from a driving motor (42) to the drum (30). The rotating shaft (41) may be connected to the drum (30). The rotating shaft (41) may form a rotational axis of the drum (30). The rotating shaft (41) may extend in a direction parallel to the rotational axis of the drum (30). The drum (30) may rotate within the tub (20) about the rotational axis by the rotational force transmitted through the rotating shaft (41).

[0096] A rotating shaft (41) can connect a drum (30) and a driving motor (42). The rotating shaft (41) can be arranged between the drum (30) and the driving motor (42). One end of the rotating shaft (41) can be connected to a drum back (34), and the other end of the rotating shaft (41) can extend outside the tub back (200) to be connected to the driving motor (42). For example, the rotating shaft (41) can be connected to the drum back (34) of the drum (30).

[0097] The garment treatment device (1) may include a shaft flange (60) connecting the drum bag (34) of the drum (30) and the rotating shaft (41). The shaft flange (60) may be coupled to the rotating shaft (41) and the drum bag (34), respectively. The shaft flange (60) may be provided to transmit power from the driving motor (42) to the drum (30). By means of the shaft flange (60), power from the driving motor (42) may be transmitted to the drum (30) more efficiently and stably.

[0098] The garment treatment device (1) may include a bearing housing (100) configured to support a rotating shaft (41). The bearing housing (100) may rotatably support the rotating shaft (41). The bearing housing (100) may be coupled to a tub (20). The bearing housing (100) may be fixed to the tub (20).

[0099] The rotating shaft (41) can penetrate the bearing housing (100). The rotating shaft (41) can penetrate the hub through hole (111, see FIG. 6) formed in the center of the bearing housing (100).

[0100] Bearings (50) may be installed in the bearing housing (100) so that the rotary shaft (41) can rotate smoothly. The bearings (50) may be accommodated in the bearing housing (100). The bearings (50) may contact the circumference of the rotary shaft (41). The bearings (50) may be arranged between the bearing housing (100) and the rotary shaft (41). The bearings (50) may be arranged inside the hub through hole (111). The rotary shaft (41) may pass through the tub back (200) of the tub (20) and be rotatably supported by the bearings (50) and the bearing housing (100).

[0101] A detailed description of the structure of the bearing housing (100) will be described later.

[0102] The clothes treatment device (1) may include a drying device (70). The drying device (70) may be configured to dry laundry accommodated inside the drum (30). The drying device (70) may be provided to heat air and supply it to the inside of the tub (20). The drying device (70) may be configured to dry and heat air discharged from the tub (20) and circulate the dried and heated air into the inside of the tub (20) to dry laundry inside the drum (30). The drying device (70) according to various embodiments may be arranged on the upper portion of the tub (20).

[0103] The drying device (70) may include a drying case (70a) in which a heat pump may be installed. The drying case (70a) may include a drying base (70b) and a drying cover (70c) that is coupled to the drying base (70b) to form a path through which air may move. The drying cover (70c) may cover the open upper surface of the drying base (70b).

[0104] A drying device (70) according to various embodiments may be configured as a heat pump. The drying device (70) may include a compressor (71), a condenser (72), an evaporator (73), an expansion valve, and a refrigerant pipe (75) configured to allow refrigerant to circulate and exchange heat. The compressor (71), condenser (72), evaporator (73), etc., which constitute the heat pump, may be placed in a drying case (70a). For example, the drying device (70) may be mounted on a clothing treatment device (1) as a single module.

[0105] The compressor (71) can compress the refrigerant, and the compressed high-temperature, high-pressure refrigerant can be moved to the condenser (72). The condenser (72) can cool the refrigerant to heat the surrounding air. The heated air can be introduced into the drum (30) to dry the laundry. The refrigerant can be expanded while passing through the expansion valve, and the expanded refrigerant can absorb heat in the evaporator (73) and cool the surrounding air. That is, the evaporator (73) can cool the humid air that has passed through the inside of the drum (30) to remove moisture. The air from which moisture has been removed passes through the condenser (72) and can be heated again while exchanging heat with the refrigerant in the condenser (72). That is, the condenser (72) can heat the air that has passed through the evaporator (73). The condenser (72) and the evaporator (73) may be referred to as a heat exchanger.

[0106] Additionally, the drying device (70) may further include a heater (80) in addition to the heat pump to increase drying efficiency. Without being limited thereto, the drying device (70) may include only the heat pump or only the heater (80).

[0107] A heater (80) can heat air introduced into a drying device (70). The heater (80) can be placed in a heating path (77). The heater (80) can be placed downstream of a condenser (72). In addition, the heater (80) can be provided in a small size so as to minimize path resistance. For example, the heater (80) can be a sheath heater.

[0108] The drying device (70) may be provided with an inlet passage (76) through which air discharged from the tub (20) is introduced. The drying device (70) may be provided with a heating passage (77) through which air introduced into the drying device (70) through the inlet passage (76) is heat-exchanged. The drying device (70) may be provided with a supply passage (78) through which air that has passed through the heating passage (77) and has undergone heat exchange is supplied to the tub (20).

[0109] An inlet passage (76) may be provided so that air passing through the inside of the tub (20) may be introduced into the drying device (70). The inlet passage (76) may be located on the upper side of the tub (20). The inlet passage (76) may be connected to an exhaust passage (P) formed at the rear of the tub (20).

[0110] The drying device (70) may include an inlet guide (76a) connected to the tub (20). The inlet guide (76a) may guide air discharged from the tub (20) to an inlet passage (76). The inlet passage (76) may be communicated with an exhaust passage (P) formed in the tub (20) through the inlet guide (76a). Air passing through the exhaust passage (P) may be introduced into the inlet passage (76) of the drying device (70) through the inlet guide (76a).

[0111] A filter (81) may be provided in the inlet passage (76) to filter out foreign substances such as lint contained in the air flowing in through the exhaust passage (P) from the tub (20). The air flowing in through the inlet passage (76) may flow to the heating passage (77) through the filter (81).

[0112] A condenser (72) and an evaporator (73) may be placed in the heating passage (77). The introduced air may be humid as it has passed through the inside of the tub (20). The humid air may be cooled in the evaporator (73) placed in the heating passage (77) to remove moisture. Thereafter, the air may be reheated by passing through the condenser (72).

[0113] The supply path (78) can supply heated air back into the tub (20) through the condenser (72). The supply path (78) is connected to the heating path (77) and can extend downward to discharge heated air toward the air inlet (26) of the tub (20).

[0114] The drying device (70) may include a blower fan (78a) for causing air to flow into the interior of the tub (20). In one embodiment, the blower fan (78a) may be disposed in the supply passage (78). The blower fan (78a) may be disposed on a front side of the drying base (70b). The blower fan (78a) may cause air of the heating passage (77) and the supply passage (78) to flow into the interior of the drum (30). For example, the blower fan (78a) may include a sirocco fan.

[0115] The clothing treatment device (1) may have a supply path (78) formed so that air moves downward from below the blower fan (78a) positioned in front of the drying base (70b). The supply path (78) may extend downward from the blower fan (78a) to connect the blower fan (78a) and the air inlet (26) of the tub (20).

[0116] By the above configuration, air passing through the heating path (77) is introduced into the supply path (78) by the blower fan (78a), moves downward of the blower fan (78a) along the supply path (78), and can then be discharged into the tub (20) through the air inlet (26).

[0117] The clothing treatment device (1) may include a diaphragm (23) connecting the tub opening of the tub (20) and the laundry inlet (12) of the housing (10). The diaphragm (23) may include a duct section (24) provided to be connected to a supply duct (78b) forming a supply path (78).

[0118] The clothing treatment device (1) may include an exhaust path (P) for allowing air discharged from the tub (20) to flow to the drying device (70). The exhaust path (P) may be provided to guide air inside the tub (20) to the drying device (70). The exhaust path (P) may be connected to an inlet path (76) of the drying device (70).

[0119] The exhaust path (P) may be provided to discharge moist air discharged from the inside of the drum (30) to the tub (20) to the outside of the tub (20). For example, the exhaust path (P) may be provided at the rear of the tub (20).

[0120] The tub (20) may include a tub exhaust port (250) formed in the tub back (200) so that the internal air of the tub (20) is discharged to the rear of the tub (20). The air discharged through the tub exhaust port (250) may flow along the exhaust path (P) to the inlet path (76).

[0121] The heated air in the drying device (70) can be introduced into the tub (20) and then supplied into the drum (30). At this time, it is necessary to secure an area where the heated air supplied into the drum (30) comes into contact with the laundry. The longer the distance and time that the heated air flows inside the drum (30), the more it can come into contact with the laundry. To this end, the tub exhaust port (250) can be formed at a position opposite to the air inlet (26) through which the heated air in the drying device (70) is introduced into the tub (20).

[0122] In a garment treatment device (1) according to one embodiment, an exhaust path (P) can be formed by combining a duct cover (25) with a tub back (200). The exhaust path (P) can be formed by combining a duct cover (25) with a tub duct (260) to be described later.

[0123] The tub (20) may include a tub duct (260). The tub duct (260) may be provided to guide air inside the tub (20) to a drying device (70). The tub duct (260) may be provided to guide air discharged from the tub (20) through the tub exhaust port (250) to the drying device (70). The tub duct (260) may be connected to an inlet guide (76a) of the drying device (70).

[0124] The tub duct (260) may be formed on the rear side of the tub back (200). The tub duct (260) may be positioned on the exterior of the tub back (200) and may be formed on the rear side of the tub back (200) opposite to the side facing the interior of the tub (20).

[0125] The clothing treatment device (1) may include a duct cover (25) coupled to the tub (20) to cover the tub duct (260). The duct cover (25) may cover one open side of the tub duct (260). An exhaust path (P) may be formed by the duct cover (25) covering one open side of the tub duct (260).

[0126] By this configuration, the clothing treatment device (1) according to one embodiment of the present disclosure can be arranged so that air discharged to the rear of the tub (20) is introduced into the inlet passage (76) of the drying device (70) located on the upper side of the tub (20) through the exhaust passage (P), and then sequentially passes through the heating passage (77) and the supply passage (78), and is then supplied back into the interior of the tub (20).

[0127] The clothing treatment device (1) described above with reference to FIGS. 1 to 5 is only one embodiment of the present disclosure, and the clothing treatment device according to various embodiments of the present disclosure may include various configurations for treating and / or managing laundry.

[0128] FIG. 6 is a drawing illustrating a tub back and bearing housing of a garment treatment device according to one embodiment of the present disclosure.

[0129] Referring to FIG. 6, a garment treatment device (1) according to one embodiment of the present disclosure may include a tub (20) including a tub back (200), and a bearing housing (100) coupled to the tub back (200) and provided to rotatably support a rotation shaft (41).

[0130] The tub back (200) may be arranged opposite the tub opening. The tub back (200) may be provided at the rear of the tub (20). The tub back (200) may form a rear wall of the tub (20). The tub back (200) may be connected to the rear end of the tub body (21). For example, the tub back (200) may be formed integrally with the tub body (21). For example, the tub (20) including the tub body (21) and the tub back (200) may be formed integrally by injection molding. The tub body (21) and the tub back (200) may be formed through a molding process of injecting a plastic resin.

[0131] The tub back (200) may be penetrated by a rotating shaft (41). The tub back (200) may include a tub through hole (210) through which the rotating shaft (41) passes. The tub through hole (210) may be penetrated by a hub (110) of the bearing housing (100) described below. The tub through hole (210) may be located approximately at the center of the tub back (200).

[0132] For example, the tub back (200) may have a circular shape with a constant thickness centered on the tub penetration hole (210). The inner circumferential surface of the tub penetration hole (210) may have a constant thickness.

[0133] The tub back (200) may include a tub exhaust port (250) that is provided to allow air inside the tub (20) to be discharged from the tub (20). The tub exhaust port (250) may connect the exhaust path (P) and the interior of the tub (20). The tub exhaust port (250) may be formed at the rear side of the tub (20). The tub exhaust port (250) may be arranged on one side of the tub back (200) with respect to the tub through hole (210).

[0134] For example, the tub exhaust port (250) may be formed in multiple forms. The multiple tub exhaust ports (250) may be positioned spaced apart from each other. In FIG. 6, three tub exhaust ports (250) are illustrated, but the number is not limited thereto. The shape, number, and arrangement of the tub exhaust ports (250) may be provided in various forms. For example, the tub exhaust port (250) may have a form in which small holes are densely arranged, a mesh, or a grille form. Alternatively, the tub exhaust port (250) may have a single exhaust port form that extends along the longitudinal direction of the exhaust passage.

[0135] The tub back (200) may include a tub duct (260) configured to guide air discharged through the tub exhaust port (250) to the drying device (70). The tub duct (260) may be formed on the rear side of the tub back (200). The rear side of the tub back (200) may be an outer surface of the tub back (200) opposite to the inner surface of the tub back (200) facing the inside of the tub (20). For example, the tub duct (260) may have a shape that is sunken from the rear side of the tub back (200) toward the front. The aforementioned tub exhaust port (250) may be arranged on the inner side of the tub duct (260). The tub exhaust port (250) may be arranged on the inner side of the sunken portion of the tub duct (260).

[0136] The tub duct (260) may be placed on one side of the tub back (200) with respect to the tub penetration hole (210). For example, the tub duct (260) may be placed at a position adjacent to the outer periphery of the tub back (200).

[0137] The bearing housing (100) may be coupled to the tub back (200). The bearing housing (100) may be provided to support the tub back (200). The bearing housing (100) may be provided to support the tub back (200) from the inside of the tub back (200). The bearing housing (100) may be coupled to the tub back (200) to reinforce the strength of the tub back (200). At least a portion of the bearing housing (100) may be disposed on the inside of the tub back (200). At least a portion of the bearing housing (100) may be inserted into the tub back (200). For example, in a process of injection molding a tub (20), the tub (20) may be injected while the bearing housing (100) is inserted into an injection mold (M, see FIG. 11, etc.), and at least a portion of the bearing housing (100) may be inserted into the injected tub back (200). At least a portion of the bearing housing (100) may be embedded inside the tub back (200).

[0138] The bearing housing (100) may include a material having a higher strength than the material of the tub (20). For example, the tub (20) may include a plastic material, and the bearing housing (100) may include a metal material. For example, the bearing housing (100) may include aluminum die casting (ALDC) or stainless steel. However, the material of the bearing housing (100) is not limited thereto and may include various materials.

[0139] The load caused by water and laundry contained inside the drum (30) can be transmitted to the tub bag (200) through the rotating shaft (41) and bearing (50). To withstand this load, a bearing housing (100) may be provided on the inside of the tub bag (200) to reinforce the strength of the tub bag (200).

[0140] The bearing housing (100) may include a hub (110). The hub (110) may be penetrated by a rotary shaft (41). The hub (110) may include a hub through hole (111) formed to allow the rotary shaft (41) to penetrate therethrough. The hub (110) may rotatably support the rotary shaft (41). A bearing (50) may be mounted on the hub (110). In order to mount the bearing (50) and support the rotary shaft (41), the inner circumferential surface of the hub (110) may have a predetermined thickness.

[0141] The hub (110) may be provided approximately at the center of the bearing housing (100). The bearing housing (100) may have a circular shape with a certain thickness, approximately centered around the hub (110) and the hub through hole (111).

[0142] The hub (110) may extend in a direction parallel to the extension direction of the rotating shaft (41). The hub (110) may extend in a direction parallel to the extension direction of the rotating shaft (41) from a flange (120) to be described later. The hub (110) may extend rearward from the flange (120).

[0143] The hub (110) may be positioned at least partially inside the tub back (200). The hub (110) may be inserted at least partially into the inside of the tub back (200). The hub (110) may be positioned at a position corresponding to the position of the tub through-hole (210) of the tub back (200) and may be positioned inside the tub through-hole (210). The hub (110) may extend from the inside to the outside of the tub back (200).

[0144] The hub (110) can penetrate the tub back (200). The hub (110) can penetrate the tub penetration hole (210). At least a portion of the hub (110) disposed inside the tub back (200) can contact the inner circumferential surface of the tub penetration hole (210). The hub (110) can penetrate the tub penetration hole (210) and be coupled to the tub back (200). For example, the front portion of the hub (110) can be disposed inside the tub back (200), and the rear portion of the hub (110) can extend rearward from the front portion and be disposed rearward of the tub back (200).

[0145] The bearing housing (100) may include a flange (120). The flange (120) may be connected to the hub (110). The flange (120) may extend outwardly from the hub (110). The flange (120) may extend from the hub (110) toward the outer circumference of the tub back (200). For example, the flange (120) may extend from the front end of the hub (110) toward the outer circumference of the tub back (200).

[0146] A flange (120) can be inserted into a tub back (200). The flange (120) can be embedded in the interior of the tub back (200). The flange (120) can be arranged on the inside of the tub back (200). The flange (120) can be positioned radially inward from the outer circumference of the tub back (200). The flange (120) can be provided to support the tub back (200) on the inside of the tub back (200). For example, the tub back (200) can be injection-molded with the flange (120) inserted. The tub (20) can be formed by injecting molten resin with the flange (120) inserted into an injection mold (M, see FIG. 11).

[0147] The flange (120) may be arranged approximately parallel to the tub back (200). For example, the flange (120) may be formed in an approximately circular shape.

[0148] The flange (120) may include a housing exhaust port (122) provided to allow air inside the tub (20) to be discharged to the tub duct (260). The housing exhaust port (122) may be provided at a position corresponding to the position of the tub exhaust port (250). The housing exhaust port (122) may be arranged on one side of the flange (120) with respect to the hub (110). The number of housing exhaust ports (122) may correspond to the number of tub exhaust ports (250).

[0149] The flange (120) may include a duct support (121) formed at a position corresponding to the tub duct (260). The duct support (121) may be provided to support the tub duct (260). The duct support (121) may be formed on the rear surface of the flange (120). For example, the duct support (121) may have a shape that is sunken from the rear surface of the flange (120) toward the front. The housing exhaust port (122) described above may be arranged on the inside of the duct support (121). The housing exhaust port (122) may be arranged on the inside of the sunken portion of the duct support (121).

[0150] The duct support (121) may be positioned on one side of the flange (120) with respect to the hub (110). For example, the duct support (121) may be positioned adjacent to the outer periphery of the flange (120).

[0151] The duct support (121) may have a reduced strength or rigidity due to the housing exhaust port (122) being provided. Alternatively, the duct support (121) may be provided at a position adjacent to the outer periphery of the flange (120), which may have a reduced strength or rigidity. Therefore, in order to reinforce the strength or rigidity of the duct support (121), the duct support (121) may include ribs (121a, 121b) provided along the periphery of the duct support (121). The ribs (121a, 121b) may be provided along the periphery of the sunken portion of the duct support (121). For example, the ribs (121a, 121b) may protrude rearward from the sunken portion of the duct support (121).

[0152] For example, the duct support (121) may include an outer rib (121a) provided along a portion of the outer circumference of the duct support (121). For example, the duct support (121) may include an inner rib (121b) provided along a portion of the inner circumference of the duct support (121). The outer rib (121a) and the outer rib (121b) may be connected to each other.

[0153] For example, the outer rib (121a) may form a portion of the outer perimeter of the flange (120). For example, the outer rib (121a) may have a higher height (i.e., a thickness in the X direction) on the flange (120) than other portions of the outer perimeter of the flange (120).

[0154] However, in contrast, the outer rib (121a) may not form part of the outer perimeter of the flange (120), and may be positioned radially inward from the outer perimeter of the flange (120).

[0155] As described above, the tub (20) can be integrally formed by injection molding with the flange (120) of the bearing housing (100) inserted into the inside of the tub back (200). For example, as illustrated in FIG. 11, the tub (20) can be formed by inserting the bearing housing (100) into an injection mold (M) and injecting an injection material such as a molten resin into the injection mold (M). When such an injection molding process is performed, there is a possibility that the bearing housing (100) may move or be deformed due to the high temperature or injection pressure of the injection material injected into the injection mold (M). In particular, the duct support (121) of the bearing housing (100) has relatively weak strength or rigidity due to its shape and position, and thus is highly likely to be deformed during injection molding. In addition, when the size of the bearing housing (100) increases due to the design of the product, the possibility that the bearing housing (100) may move or be deformed may further increase. This problem of movement or deformation may be more problematic in the area adjacent to the outer periphery of the bearing housing (100). If the bearing housing (100) moves or deforms in this way, a part of the tub back (200) may be incompletely formed, or a part of the bearing housing (100) may penetrate the tub back (200) and protrude to the outside. In this case, the strength or rigidity of the tub back (200) may be reduced, which may cause damage to the part, and there is a risk of moisture infiltration through the area where the defect occurs.

[0156] Accordingly, according to one embodiment, a structure may be provided that allows the bearing housing (100) to be supported and / or fixed inside the injection mold (M) during injection molding of the tub (20). According to one embodiment, the bearing housing (100) may include a holder (130). The holder (130) may be provided to be supported by the holder core (Ch2, see FIG. 13) of the injection mold (M) during injection molding of the tub (20). The holder (130) may be provided to prevent movement and / or deformation beyond a predetermined length by the holder core (Ch2) of the injection mold (M). As a result, deformation of the bearing housing (100) during injection molding of the tub (20) can be more efficiently prevented.

[0157] The holder (130) may be provided on the outer periphery of the bearing housing (100). The holder (130) may be provided on the outer periphery of the flange (120). That is, the holder (130) may be provided on the outer peripheral surface of the flange (120). For example, the holder (130) may protrude outward from the outer periphery of the flange (120).

[0158] The holder (130) may include a holder groove (130a). The holder groove (130a) may have a shape that is sunken toward the inside of the flange (120). The holder groove (130a) may be sunken from the outer end of the holder (130) toward the inside of the flange (120). When the tub (20) is injection molded, the holder core (Ch2) of the injection mold (M) may support the holder (130) by engaging the holder groove (130a) of the holder (130).

[0159] The holder (130) can be placed on the inner side of the outer surface of the tub back (200) when the injection molding of the tub (20) is completed. The holder (130) can be embedded in the inner side of the tub back (200). The tub back (200) can be injection molded with the holder (130) inserted.

[0160] Since the tub (20) is injection-molded with the bearing housing (100) including the holder (130) inserted therein, the holder (130) can be covered by the outer surface of the tub back (200). The outer surface of the tub back (200) can cover at least a portion of the holder (130). The holder (130) can support a portion of the outer surface of the tub back (200) from the inside of the tub back (200).

[0161] For example, the tub back (200) may include a tub groove (230). The tub groove (230) may be formed on the outer surface of the tub back (200). The tub groove (230) may have a concave shape on the outer surface of the tub back (200). The tub groove (230) may cover at least a portion of the holder (130) from the outside. The tub groove (230) may be formed on a portion of the outer surface of the tub back (200) that covers the holder (130). The tub groove (230) may be formed when an injection material injected into an injection mold (M) is solidified on the outer surface of the holder (130) (particularly, the surface of the holder groove (130a)). The holder (130) may support the tub groove (230).

[0162] The tub groove (230) may be formed at a position corresponding to the holder groove (130a). The tub groove (230) may be formed in a shape corresponding to the holder groove (130a). The tub groove (230) may be provided on the outer side of the holder groove (130a).

[0163] The tub back (200) may include a groove wall (240) provided around the tub groove (230). The groove wall (240) may form the tub groove (230). The groove wall (240) may be provided on the outer surface of the tub back (200). For example, the groove wall (240) may protrude from the outer surface of the tub back (200). The tub back (200) may include a flange contact portion (220) that contacts the outer surface of the flange (120), and the groove wall (240) may protrude outward from the flange contact portion (220). The flange contact portion (220) may be provided on a portion of the outer surface of the tub back (200).

[0164] The home wall (240) can cover at least a portion of the holder (130) from the outside. The home wall (240) can be formed at a position corresponding to the holder (130). The home wall (240) can be formed when the injection material injected into the injection mold (M) solidifies on the outer surface of the holder (130). The holder (130) can be provided to support the home wall (240) from the inside of the tub back (200).

[0165] As described above, the strength or rigidity of the bearing housing (100) may be relatively weak in a portion adjacent to the duct support (121), and it may be important to support and reinforce this portion. Therefore, the holder (130) may be provided at a position adjacent to the duct support (121). The holder (130) may be arranged on the side of the hub (110) adjacent to the housing exhaust port (122). For example, the holder (130) may be provided on an outer rib (121a) forming a portion of the outer periphery of the flange (120). For example, the holder (130) may protrude outward from the outer rib (121a).

[0166] In response to this, the tub home (230) may be arranged on the side adjacent to the tub duct (260). For example, the tub home (230) may be arranged on the side adjacent to the tub exhaust port (250) with respect to the tub through hole (210).

[0167] A plurality of holders (130) may be provided. In Fig. 6, an example is shown in which two holders (130) are provided, but the number of holders (130) is not limited thereto.

[0168] The plurality of holders (130) may be arranged to be spaced apart from each other. For example, the plurality of spaced apart holders (130) may be arranged on a side of the hub (110) adjacent to the housing exhaust port (122), respectively. Alternatively, for example, some of the plurality of holders (130) may be arranged on a side of the hub (110) adjacent to the housing exhaust port (122), while others may be arranged on a side opposite thereto. Alternatively, for example, the plurality of holders (130) may be arranged on a side of the hub (110) opposite the housing exhaust port (122).

[0169] Alternatively, only one holder (130) may be provided in the bearing housing (100).

[0170] The tub home (230) and home wall (240) may be provided in a number corresponding to the number of holders (130). The tub home (230) and home wall (240) may be formed at a position corresponding to the position of each of a single or multiple holders (130).

[0171] Hereinafter, the structure of the holder (130), the tub home (230), and the home wall (240) will be described in more detail with reference to FIGS. 7 to 10.

[0172] FIG. 7 is an enlarged view of a tub groove provided in a tub back of a garment treatment device according to one embodiment of the present disclosure. FIG. 8 is an enlarged view of a holder provided in a bearing housing of a garment treatment device according to one embodiment of the present disclosure. FIG. 9 is a view illustrating a tub groove and a holder of a garment treatment device according to one embodiment of the present disclosure. FIG. 10 is a view illustrating a tub groove and a holder of a garment treatment device according to one embodiment of the present disclosure.

[0173] Referring to FIGS. 7 to 10, the holder (130) provided in the bearing housing (100) of the garment treatment device (1) according to one embodiment of the present disclosure, and the tub groove (230) and groove wall (240) provided in the tub back (200) may be positioned at corresponding positions and may have corresponding shapes.

[0174] The tub groove (230) and the groove wall (240) may be provided on the outside of the holder (130). The tub groove (230) may be provided at a position corresponding to the holder groove (130a) of the holder (130). The groove wall (240) may be provided at a position corresponding to the holder walls (131, 132, 133) of the holder (130).

[0175] The groove wall (240) may cover at least a portion of the holder (130) from the outside. For example, the groove wall (240) may cover the entire outer surface of the holder (130). Alternatively, when the holder (130) moves during the injection molding process of the tub (20) and comes into contact with the holder core (Ch2) of the injection mold (M), the groove wall (240) may cover only a portion of the holder (130), and another portion of the holder (130) may be exposed to the outside (see FIG. 15). A detailed description thereof will be provided later.

[0176] The holder (130) can be embedded in the inner side of the home wall (240). The holder (130) can be inserted into the inner side of the home wall (240). The holder (130) can be placed between one side of the home wall (240) facing the inner side of the tub home (230) and the other side of the home wall (240) opposite thereto. The holder (130) can be surrounded by one side of the home wall (240) facing the inner side of the tub home (230) and the other side of the home wall (240) opposite thereto.

[0177] Examples of a holder (130), a tub home (230) and a home wall (240) are described.

[0178] For example, the holder (130) may include a first holder wall (131), a second holder wall (132) facing the first holder wall (131), and a third holder wall (133) connecting the first holder wall (131) and the second holder wall (132). The first holder wall (131), the second holder wall (132), and the third holder wall (133) may be provided along at least a portion of a perimeter of a holder groove (130a). The holder groove (130a) may be formed between the first holder wall (131), the second holder wall (132), and the third holder wall (133). The first holder wall (131), the second holder wall (132), and the third holder wall (133) may surround at least a portion of the holder groove (130a). When a tub groove (230) is formed on the outer surface of the holder (130), the first holder wall (131), the second holder wall (132), and the third holder wall (133) can surround at least a portion of the tub groove (230).

[0179] The first holder wall (131) and the second holder wall (132) may extend in parallel with each other or in a direction substantially similar to each other. For example, as shown in the drawings, the first holder wall (131) and the second holder wall (132) may extend in a direction approximately in the forward-backward direction (X) or in an inclined direction at a small angle with respect to the forward-backward direction.

[0180] The third holder wall (133) can connect the ends of each of the first holder wall (131) and the second holder wall (132). For example, as shown in the drawings, the third holder wall (133) can connect the rear end of the first holder wall (131) and the rear end of the second holder wall (132). Alternatively, the third holder wall (133) can connect the front end of the first holder wall (131) and the front end of the second holder wall (132).

[0181] The first holder wall (131), the second holder wall (132), and the third holder wall (133) can each protrude from the outer periphery of the flange (120).

[0182] For example, the home wall (240) may include a first home wall (241), a second home wall (242) facing the first home wall (241), and a third home wall (243) connecting the first home wall (241) and the second home wall (242). The first home wall (241), the second home wall (242), and the third home wall (243) may be provided along at least a portion of the perimeter of the tub groove (230). The tub groove (230) may be formed between the first home wall (241), the second home wall (242), and the third home wall (243).

[0183] The first groove wall (241) can cover at least a portion of the first holder wall (131). The first holder wall (131) can support the first groove wall (241) from the inside. The second groove wall (242) can cover at least a portion of the second holder wall (132). The second holder wall (132) can support the second groove wall (242) from the inside. The third groove wall (243) can cover at least a portion of the third holder wall (133). The third holder wall (133) can support the third groove wall (243) from the inside.

[0184] The first groove wall (241) and the second groove wall (242) may extend in parallel with each other or in a direction substantially similar to each other. For example, as shown in the drawings, the first groove wall (241) and the second groove wall (242) may extend in a direction approximately in the forward-backward direction (X) or in an inclined direction at a small angle with respect to the forward-backward direction.

[0185] The third groove wall (243) can connect the ends of each of the first groove wall (241) and the second groove wall (242). For example, as shown in the drawings, the third groove wall (243) can connect the rear end of the first groove wall (241) and the rear end of the second groove wall (242). Alternatively, the third groove wall (243) can connect the front end of the first groove wall (241) and the front end of the second groove wall (242).

[0186] Referring to FIGS. 9 and 10, the holder (130) can support the tub groove (230) in a first direction (D1). In addition, the holder (130) can support the tub groove (230) in a second direction (D2) different from the first direction (D1). The holder (130) can support the groove wall (240) in the first direction (D1). In addition, the holder (130) can support the groove wall (240) in a second direction (D2) different from the first direction (D1).

[0187] A part of the holder (130) (e.g., the first holder wall (241), the second holder wall (242)) can contact the home wall (240) in a first direction (D1), and another part of the holder (130) (e.g., the third holder wall (243)) can contact the home wall (240) in a second direction (D2) different from the first direction (D1).

[0188] For example, the first direction (D1) and the second direction (D2) may be perpendicular to each other, but are not limited thereto.

[0189] The first direction (D1) and the second direction (D2) may be different from the radial direction of the flange (120). In other words, the first direction (D1) and the second direction (D2) may be different from the radial direction of the hub (110). In other words, the first direction (D1) and the second direction (D2) may be different from the radial direction of the rotating shaft (41). For example, the first direction (D1) and the second direction (D2) may be perpendicular to the radial direction of the flange (120).

[0190] Meanwhile, the tub home (230) and the home wall (240) can cover the holder (130) on the radially outer side of the tub back (200), and thus the tub home (230) and the home wall (240) can also contact the holder (130) in the radial direction.

[0191] In addition to the embodiments illustrated in FIGS. 7 to 10, according to various embodiments, the holder (130) may have various shapes configured to support the tub groove (230) by contacting it in different first directions (D1) and second directions (D2), and the tub groove (230) and groove wall (240) may have various shapes corresponding to the holder (130).

[0192] For example, unlike the embodiment shown in the drawings, the holder (130) may include a first holder wall and a second holder wall that each extend in a direction substantially parallel to the circumferential direction of the tub back (200) and face each other, and a third holder wall that connects the first holder wall and the second holder wall and extends in a direction substantially parallel to the axial direction (i.e., the extension direction of the rotating shaft (41)) (front-back direction (X)) of the tub back (200).

[0193] By these configurations, the holder (130) can support the tub groove (230) and the groove wall (240) on the inside of the tub back (200). In addition, by these configurations, the holder (130) can be supported by the holder core (Ch2, see FIG. 13) in the step of manufacturing the tub (20) by injection molding, thereby preventing and / or reducing deformation of the bearing housing (100).

[0194] Hereinafter, with reference to FIGS. 11 to 15, a method for manufacturing a tub (20) of a clothing treatment device (1) according to one embodiment of the present disclosure will be described.

[0195] FIG. 11 is a drawing illustrating an injection mold for injection molding a bearing housing and a tub of a garment treatment device according to an embodiment of the present disclosure. FIG. 12 is a drawing illustrating a state in which a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to an embodiment of the present disclosure. FIG. 13 is a cross-sectional view illustrating a state in which a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to an embodiment of the present disclosure. FIG. 14 is a drawing schematically illustrating a state in which a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to an embodiment of the present disclosure. FIG. 15 is a drawing schematically illustrating an example in which a portion of a bearing housing is deformed in a state in which a holder core of an injection mold is engaged with a holder provided in a bearing housing of a garment treatment device according to an embodiment of the present disclosure.

[0196] Referring to FIGS. 11 to 15, the tub (20) of the garment treatment device (1) according to one embodiment of the present disclosure can be manufactured through injection molding. The step of injection molding the tub (20) can be performed using an injection mold (M). The injection molding of the tub (20) can be performed by inserting a bearing housing (100) into the injection mold (M) and injecting an injection material (e.g., molten resin, etc.). Through this, an integral tub (20) with the bearing housing (100) inserted into the interior of the tub back (200) can be manufactured.

[0197] The injection mold (M) can form an injection space corresponding to the shape of the tub (20) and into which an injection material is injected. For example, the injection mold (M) can include an outer core (C1) configured to form an outer surface of the tub (20) and an inner core (C2) configured to form an inner surface of the tub (20), and the injection space can be formed between the outer core (C1) and the inner core (C2). When the outer core (C1) and the inner core (C2) are interlocked with each other, an injection material can be injected into the injection space therebetween. For example, the inner core (C2) can be inserted into the inner side of the outer core (C1) and interlocked with the outer core (C1).

[0198] The bearing housing (100) can be inserted into the injection space between the outer core (C1) and the inner core (C2). The bearing housing (100) can be inserted into a portion of the injection space where the tub back (200) is to be formed.

[0199] The outer core (C1) may include an axial core (C11) configured to move axially with respect to the bearing housing (100) and form the tub (20), particularly the tub back (200), and a side core (C12) configured to move circumferentially inward or circumferentially outward with respect to the bearing housing (100) and form the tub back (200). The axial direction may be approximately parallel to the extension direction of the rotating shaft (41). The axial core (C11) may be configured to form the rear surface of the tub back (200). The side core (C12) may be configured to form at least a portion of the outer circumferential surface of the tub back (200).

[0200] In this way, by configuring the outer core (C1) not as a single piece but by dividing it into multiple mold cores such as an axial core (C11) and a side core (C12), the design and manufacturing of the mold can be made easier.

[0201] The injection mold (M) may include a hub penetration core (Ch1). The hub penetration core (Ch1) may be configured to penetrate the hub (110) of the bearing housing (100) during injection molding of the tub (20). The hub penetration core (Ch1) may be configured to support the hub (110) of the bearing housing (100) during injection molding of the tub (20). The hub penetration core (Ch1) may support the bearing housing (100) in a radial direction (of the bearing housing (100), or the hub (110), or the flange (120), or the tub back (200), or the rotating shaft (41)), thereby preventing the bearing housing (100) from moving radially within the injection mold (M).

[0202] For example, a hub penetrating core (Ch1) may be provided in an axial core (C11) of an outer core (C1).

[0203] In this way, by the step of penetrating the hub penetration core (Ch1) of the injection mold (M) into the hub (110), the bearing housing (100) can be prevented from moving radially within the injection mold (M).

[0204] The injection mold (M) may include a holder core (Ch2). The holder core (Ch2) may be configured to engage with the holder (130) of the bearing housing (100) during injection molding of the tub (20). The holder core (Ch2) may be configured to support the holder (130) during injection molding of the tub (20).

[0205] For example, the holder core (Ch2) may be provided on the side core (C12) of the outer core (C1). The holder core (Ch2) may be engaged with or separated from the holder (130) depending on the movement of the side core (C12). The holder core (Ch2) may be engaged with the holder (130) by moving the holder core (Ch2) in a radially inward direction of the flange (120). The holder core (Ch2) may be separated from the holder (130) by moving the holder core (Ch2) in an outward direction of the flange (120).

[0206] The holder core (Ch2) can support the holder (130) in a first direction (D1) and a second direction (D2) different from the first direction (D1) when engaged with the holder (130). The holder core (Ch2) can prevent the holder (130) from moving in the first direction (D1) by a predetermined first length or more when engaged with the holder (130). The holder core (Ch2) can prevent the holder (130) from moving in the second direction (D2) by a predetermined second length or more when engaged with the holder (130). Here, the first length and the second length may be the same or different. The first length and the second length may be appropriately set so that the tub back (200) can be smoothly injection-molded despite movement / deformation of the bearing housing (100), and may be set experimentally or empirically.

[0207] The first direction (D1) and the second direction (D2) may be different from the radial direction of the flange (120). For example, the first direction (D1) and the second direction (D2) may be perpendicular to the radial direction of the flange (120).

[0208] In one embodiment, the holder core (Ch2) may include a groove outer support portion (Ch21) and a groove inner support portion (Ch22). A separation space (s) may be formed between the groove outer support portion (Ch21) and the groove inner support portion (Ch22). The groove outer support portion (Ch21) may be configured to support the holder (130) on the outside of the holder groove (130a). The groove inner support portion (Ch22) may be configured to support the holder (130) on the inside of the holder groove (130a). As the holder core (Ch2) approaches the holder (130), the groove inner support portion (Ch22) may be inserted into the holder groove (130a). As the holder core (Ch2) approaches the holder (130), the groove inner support (Ch22) can cover the respective inner surfaces of the first holder wall (131), the second holder wall (132), and the third holder wall (133) facing inwardly of the holder groove (130a). As the holder core (Ch2) approaches the holder (130), the first holder wall (131), the second holder wall (132), and the third holder wall (133) can be inserted into the gap space (s) between the groove outer support (Ch21) and the groove inner support (Ch22), respectively. As the holder core (Ch2) approaches the holder (130), the groove outer support (Ch21) can cover the holder (130) from the outside. As a result, the holder (130) and the holder core (Ch2) can be engaged with each other. When the holder (130) and the holder core (Ch2) are engaged with each other, the first holder wall (131) and the second holder wall (132) of the holder (130) can be restricted from moving in the first direction (D1) by a predetermined first length or more by the groove outer support (Ch21) and the groove inner support (Ch22), respectively. When the holder (130) and the holder core (Ch2) are engaged with each other, the third holder wall (133) of the holder (130) can be restricted from moving in the second direction (D2) by a predetermined second length or more by the groove outer support (Ch21) and the groove inner support (Ch22), respectively.

[0209] As illustrated in Fig. 14, the holder core (Ch2) can be engaged with the holder (130) while being spaced apart from the holder (130). Even when the holder core (Ch2) is engaged with the holder (130), it can be spaced apart from the holder (130) before injecting the injection material into the injection mold (M).

[0210] For example, the holder core (Ch2) may be spaced apart from the holder (130) in a first direction (D1). The first holder wall (131) and the second holder wall (132) of the holder (130) may be spaced apart from the groove outer support (Ch21) and the groove inner support (Ch22) in the first direction (D1). Also, for example, the holder core (Ch2) may be spaced apart from the holder (130) in a second direction (D2). The third holder wall (133) of the holder (130) may be spaced apart from the groove outer support (Ch21) and the groove inner support (Ch22) in the second direction (D2).

[0211] For example, the cross-sectional area of ​​the holder groove (130a) may be larger than the cross-sectional area of ​​the groove inner support (Ch22). As a result, the groove inner support (Ch22) inserted into the holder groove (130a) may be spaced apart from the first holder wall (131), the second holder wall (132), and the third holder wall (133). In addition, for example, the cross-sectional area of ​​the separation space (s) between the groove outer support (Ch21) and the groove inner support (Ch22) may be larger than the cross-sectional areas of the first holder wall (131), the second holder wall (132), and the third holder wall (133). As a result, the first holder wall (131), the second holder wall (132), and the third holder wall (133) inserted into the separation space (s) may be spaced apart from the groove outer support (Ch21).

[0212] In this way, since the holder (130) and the holder core (Ch2) are interlocked while being spaced apart from each other, when the injection material is injected into the injection mold (M), the injection material can also be injected into the spaced space (s) and the inside of the holder groove (130a), and thus, a tub groove (230) and a groove wall (240) can be formed on the surface of the holder (130).

[0213] Referring to FIG. 13, the holder (130) may include an inclined surface (130b) provided on one surface facing inwardly of the holder groove (130a). For example, the inclined surface (130b) may extend obliquely so that the cross-sectional area of ​​the holder groove (130a) becomes narrower as it moves inwardly in the radially inward direction of the flange (120). The inclined surface (130b) may be provided on one surface facing inwardly of the holder groove (130a) of all or at least a portion of the first holder wall (131), the second holder wall (132), and the third holder wall (133). The inclined surface (130b) may be provided to guide the groove inner support portion (Ch22) of the holder core (Ch2) to be inserted into the holder groove (130a). As a result, the holder core (Ch2) may move in the radially inward direction of the flange (120) and more efficiently engage with the holder (130).

[0214] In this way, by engaging the holder core (Ch2) of the injection mold (M) with the holder (130), it is possible to prevent all or part of the bearing housing (100) within the injection mold (M) from moving and / or deforming in a direction other than the radial direction (first direction (D1) or second direction (D2)) by a predetermined length or more.

[0215] Referring to Fig. 15, when the holder core (Ch2) and the holder (130) are engaged, the holder (130) may move and / or be deformed due to causes such as deformation of the bearing housing (100) due to high temperature or injection pressure of the injection material. Even in this case, since the holder (130) is engaged with the holder core (Ch2), movement or deformation beyond a certain length may be restricted. Meanwhile, there may be a case where the holder (130) comes into contact with the holder core (Ch2) as it moves or is deformed. For example, the holder (130) may come into contact with the groove outer support portion (Ch21) or the groove inner support portion (Ch22) as it moves or is deformed. The injection material may not flow into the contact surface (c) where a part of the holder (130) and the holder core (Ch2) come into contact, and thus the tub groove (230), groove wall (240), etc. may not be formed on the contact surface (c) of the holder (130). That is, the tub groove (230) or groove wall (240) may not cover the portion corresponding to the contact surface (c) of the holder (130), and the holder (130) may be exposed to the outside by the portion corresponding to the contact surface (c). Nevertheless, since the contact surface (c) has a relatively narrow area, there is little concern about a decrease in the strength or rigidity of the tub (20), and since it is located on the outside of the tub (20), it is expected that there will be little concern about moisture penetration, etc.

[0216] A garment treatment device according to one embodiment of the present disclosure may include a tub, a drum rotatably provided inside the tub, a rotary shaft connected to the drum, and a bearing housing configured to support the rotary shaft. The tub may include a tub back provided at a rear side of the tub and to which the bearing housing is coupled. The bearing housing may include a hub that supports the rotary shaft and penetrates the tub back, a flange that extends from the hub toward an outer circumference of the tub back and is inserted into the tub back, and a holder that is provided on an outer circumference of the flange and has a holder groove. The outer circumference of the tub back may cover at least a portion of the holder.

[0217] The above tub back may include a groove wall provided around the perimeter of the holder groove. The groove wall may cover at least a portion of the holder.

[0218] The holder may be positioned between a first surface of the groove wall facing the inside of the holder groove and a second surface of the groove wall opposite to the first surface.

[0219] A portion of the holder may contact the groove wall in a first direction. Another portion of the holder may contact the groove wall in a second direction different from the first direction.

[0220] The first direction and the second direction may be different from the radial direction of the flange.

[0221] The above tub back may further include a flange contact portion that contacts the outer surface of the flange. The groove wall may protrude outward from the flange contact portion.

[0222] The holder may protrude outwardly from the outer periphery of the flange.

[0223] The holder may include a first holder wall, a second holder wall facing the first holder wall, and a third holder wall connecting the first holder wall and the second holder wall. The first holder wall, the second holder wall, and the third holder wall may surround at least a portion of the holder groove.

[0224] The third holder wall can connect the rear end of the first holder wall and the rear end of the second holder wall.

[0225] The above tub back may include a tub groove that is recessed from the outer surface of the tub back. The tub groove may be formed at a position corresponding to the holder groove.

[0226] The above flange and the above holder can be embedded inside the tub bag.

[0227] The above tub back can be injection molded with the above flange and the above holder inserted.

[0228] The above-mentioned clothing treatment device may further include a drying device configured to remove moisture from air discharged from the tub and supply heated air to the tub. The tub bag may include a tub duct provided to guide air inside the tub to the drying device. The flange may include a housing exhaust port provided to discharge air inside the tub to the tub duct. The holder may be arranged on a side of the hub adjacent to the housing exhaust port.

[0229] A method for manufacturing a tub for injection molding a tub of a garment treatment device according to one embodiment of the present disclosure may include engaging a holder core of an injection mold with a holder provided on the outer periphery of a flange of a bearing housing provided to be coupled to a rear wall of the tub, and injecting an injection material into the injection mold into which the bearing housing is inserted.

[0230] The method for manufacturing the above tub may further include penetrating a hub penetration core of the injection mold into a hub of the bearing housing through which a rotating shaft for providing power to a drum of the garment treatment device is provided to penetrate.

[0231] Engaging the holder core with the holder may be accomplished by moving the holder core toward the radially inward direction of the flange.

[0232] The method for manufacturing the above tub can limit movement of the holder in a first direction by a predetermined first length or more by engaging the holder core with the holder, and limit movement of the holder in a second direction different from the first direction by a predetermined second length or more.

[0233] The engaging of the holder core with the holder may be such that the holder core engages with the holder while being spaced apart from the holder before injecting the injection material into the injection mold.

[0234] The above injection mold may include an outer core configured to form an outer surface of the tub and an inner core configured to form an inner surface of the tub. The holder core may be provided on the outer core. Injecting the injection material into the injection mold may be done by inserting the bearing housing into the injection space between the outer core and the inner core and injecting the injection material into the injection space.

[0235] A garment treatment device according to one embodiment of the present disclosure may include a tub including a tub opening formed at a front side and a tub back formed at a rear side, a drum rotatably provided inside the tub, a rotation shaft connected to the drum, and a bearing housing coupled to the tub back and supporting the rotation shaft. The tub back may include a tub groove formed on an outer circumferential surface of the tub back, and a groove wall formed around the tub groove and protruding from the outer circumferential surface of the tub back. The bearing housing may include a hub penetrating the tub back, a flange inserted into the tub back and extending from the hub toward the outer circumferential surface of the tub back, and a holder groove formed at a position corresponding to the tub groove, protruding from the outer circumferential surface of the flange, and covered by the outer circumferential surface of the tub back.

[0236] According to the invention of the present disclosure, the bearing housing of the garment treatment device includes a holder that is provided to be supported by a holder core of an injection mold, thereby preventing the tub from being deformed when injection molded.

[0237] According to the invention of the present disclosure, the bearing housing of a garment treatment device can reduce deformation when a tub is injection-molded using a holder, thereby preventing the tub bag from being incompletely molded.

[0238] According to the idea of ​​the present disclosure, the bearing housing of the garment treatment device is inserted into the inside of the tub bag to support the tub bag and prevent the tub bag from protruding outward due to deformation, thereby preventing the strength or rigidity of the tub bag from being reduced.

[0239] The effects according to the idea of ​​the present disclosure are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0240] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. Tub; A drum rotatably provided on the inside of the above tub; a rotating shaft connected to the drum; and A bearing housing configured to support the above rotating shaft; The above tub, A tub back is provided at the rear of the tub and includes the tub back to which the bearing housing is coupled; The above bearing housing, A hub supporting the above rotating shaft and penetrating the tub back; A flange extending from the hub toward the outer surface of the tub back and inserted into the tub back; and A holder provided on the outer circumference of the above flange and having a holder groove; A garment treatment device in which the outer surface of the tub bag covers at least a portion of the holder.

2. In paragraph 1, The above tub back includes a groove wall provided around the perimeter of the holder groove, A garment treatment device wherein the above home wall covers at least a portion of the holder.

3. In paragraph 2, The above holder, A garment treatment device disposed between a first surface of the groove wall facing the inside of the holder groove and a second surface of the groove wall opposite to the first surface.

4. In paragraph 2, A part of the holder is in contact with the home wall in the first direction, A garment treatment device in which another part of the holder contacts the home wall in a second direction different from the first direction.

5. In paragraph 4, A clothing treatment device wherein the first direction and the second direction are different from the radial direction of the flange.

6. In paragraph 2, The above tub back further includes a flange contact portion that contacts the outer surface of the flange, A garment treatment device in which the above home wall protrudes outward from the above flange contact portion.

7. In paragraph 1, The above holder is a garment treatment device that protrudes outward from the outer periphery of the above flange.

8. In paragraph 1, The above holder, 1st holder wall; a second holder wall facing the first holder wall; and a third holder wall connecting the first holder wall and the second holder wall; A garment treatment device wherein the first holder wall, the second holder wall, and the third holder wall surround at least a portion of the holder groove.

9. In paragraph 8, The third holder wall is a garment treatment device that connects the rear end of the first holder wall and the rear end of the second holder wall.

10. In paragraph 1, The above tub back includes a tub groove that is sunken from the outer surface of the above tub back, A clothing treatment device in which the above tub home is formed at a position corresponding to the above holder home.

11. In paragraph 1, A garment treatment device in which the above flange and the above holder are embedded inside the above tub bag.

12. In paragraph 11, The above tub bag is a garment treatment device that is injection-molded with the above flange and the above holder inserted.

13. In paragraph 1, Further comprising a drying device configured to remove moisture from air discharged from the tub and supply heated air to the tub; The above tub bag includes a tub duct provided to guide air inside the tub to the drying device, The above flange includes a housing exhaust port provided to allow air inside the tub to be discharged to the tub duct, The above holder is a clothing treatment device arranged on the side adjacent to the housing exhaust port with respect to the hub.

14. In a method for manufacturing a tub for injection molding a tub of a garment processing device, Engaging the holder core of the injection mold with the holder provided on the outer periphery of the flange of the bearing housing which is arranged to be coupled to the rear wall of the above tub; and A method for manufacturing a tub, comprising: injecting an injection material into the injection mold into which the bearing housing is inserted.

15. In paragraph 14, A method for manufacturing a tub, further comprising: penetrating a hub penetration core of the injection mold into the hub of the bearing housing, through which a rotating shaft for providing power to the drum of the garment treatment device is provided to penetrate;

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