Laundry treating apparatus

Abstract

A laundry treating apparatus includes a drum having a drum body providing a space to store laundry, a front cover forming a front face of the drum body, a rear cover forming a rear face of the drum body, a drum inlet passing through the front cover, and a rear cover through-hole passing through the rear cover; a motor having a stator forming a rotating magnetic field and a rotor rotated by the rotating magnetic field; a fixed panel between the rear cover and the motor; a fixed panel through-hole passing through the fixed panel; a power transmission part having a housing fixed to the fixed panel and fixing the stator, an input shaft having one end fixed to the rotor and the other end inside the housing, an output shaft having one end inserted into the fixed panel through-hole and the other end inside the housing, and a gear unit inside the housing and transmitting a rotational motion of the input shaft to the output shaft; a shaft fastening part fixed to the rear cover and closing the rear cover through-hole; a fastening part through-hole passing through the shaft fastening part for one end of the output shaft to be inserted; and a nut coupled to one end of the output shaft passing through the fastening part through-hole and fixing the output shaft to the shaft fastening part.

Description

Technical Field

[0001] This application relates to a garment processing device. Background Technology

[0002] Clothing handling equipment is a general term for washing machines that wash clothes (objects to be washed or objects to be dried), dryers that dry clothes, and other devices that can perform the washing and drying of clothes.

[0003] Generally, a washing machine includes: an outer tub for storing water; a washing drum disposed inside the outer tub for storing clothes; and a drive unit (washing drive unit) for rotating the washing drum. A dryer includes: a drying drum for storing clothes; a drive unit (drying drive unit) for rotating the drying drum; and a heat exchange unit for removing moisture from the clothes by supplying air to the drying drum.

[0004] Generally, the washing drive unit includes: a stator fixed to the outer tub to form a rotating magnetic field; a rotor that rotates by the rotating magnetic field; and a rotating shaft that passes through the outer tub and connects the washing drum and the rotor. On the other hand, the drying drive unit includes: a motor; a pulley fixed to the rotating shaft of the motor; and a belt (power transmission unit) that transmits the rotational motion of the pulley to the drying drum.

[0005] The washing drive unit is configured such that the motor's rotating shaft connects the washing drum and the rotor. For washing or spin-drying clothes, the washing drive unit needs to control the washing drum's rotation speed or change its rotation direction. If the motor's rotating shaft is directly connected to the washing drum and the rotor, it allows for easy control of both the washing drum's rotation speed and direction.

[0006] On the other hand, existing drying drive units typically have a structure that connects the drying drum and the rotating shaft of the motor via a power transmission mechanism such as a belt. This is because, for a dryer, the necessity to maintain a high rotation speed of the drying drum or to change the rotation direction of the drying drum is relatively low, so the drying drum can be rotated via a power transmission mechanism such as a belt. However, if the rotation speed and rotation direction of the drying drum can be changed, the movement of the clothes inside the drying drum can be controlled, and therefore, the dryer can be expected to have a shorter drying time and improved drying performance.

[0007] Existing dryers include a drying drive unit (Publication No. 10-2020-0065931) that connects the rotor and the drying drum via a reducer (power transmission unit). This drying drive unit is configured such that the input shaft connected to the rotor and the output shaft connected to the drying drum are coaxial, which can be expected to shorten drying time or improve drying performance. However, it has drawbacks such as difficulty in assembling the drying drum and the reducer's output shaft, and the potential reduction in the durability of the reducer or drying drum during assembly (damage to bolts on the reducer, damage to the output shaft, damage to the drying drum, etc.).

[0008] In addition, existing dryers can relatively easily control the vibration of the rear side of the drying drum, which is fixed to the output shaft of the reducer, but additional devices are required to control the vibration of the front side of the drying drum, which has a drum inlet. Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] The problem to be solved by this application is to provide a garment handling device that is easy to assemble with the output shaft and roller of the power transmission section.

[0011] In addition, the problem to be solved by this application is to provide a garment processing device that can prevent the durability of the power transmission part and the roller from decreasing when they are combined.

[0012] In addition, the problem to be solved by this application is to provide a garment handling device that can minimize the displacement of the roller in the circumferential direction of the output shaft.

[0013] Technical solutions to the problem

[0014] This application relates to a garment handling device, comprising: a roller having a roller body, a front cover, a rear cover, a roller inlet, and a rear cover through hole; the roller body providing space for storing garments; the front cover forming the front of the roller body; the rear cover forming the rear of the roller body; the roller inlet penetrating the front cover; and the rear cover through hole penetrating the rear cover; a motor having a stator and a rotor; the stator forming a rotating magnetic field; the rotor being rotated by the rotating magnetic field; a fixed panel located between the rear cover and the motor; and a fixed panel through hole penetrating the fixed panel; and a power transmission unit having a cover, an input shaft, and an output shaft. The enclosure includes a gear unit, a cover fixed to the fixed panel and fixing the stator, one end of the input shaft fixed to the rotor and the other end located inside the enclosure, one end of the output shaft inserted into the through hole of the fixed panel and the other end located inside the enclosure, the gear unit located inside the enclosure and transmitting the rotational motion of the input shaft to the output shaft; a shaft fastening part fixed to the rear cover and closing the through hole of the rear cover; a fastening part through hole penetrating the shaft fastening part for inserting one end of the output shaft; and a nut engaged with one end of the output shaft passing through the through hole of the fastening part, fixing the output shaft to the shaft fastening part.

[0015] The shaft fastening part may include: a first fastening body fixed to the rear cover; a second fastening body located inside the roller and having a through hole for the fastening part; and a connecting body connecting the first fastening body and the second fastening body and inserted into the through hole of the rear cover.

[0016] The diameter of the connecting body can be set such that it decreases from the first fastening body toward the second fastening body.

[0017] The output shaft may include: a fastening shaft located inside the cover and connected to the gear unit; a fixing shaft extending from the fastening shaft and inserted into the through hole of the fastening part; and a thread provided on the circumferential surface of the fixing shaft for engagement by the nut.

[0018] The garment processing device may further include: a fastening part serrated blade protruding from the edge of the fastening part through hole toward the center of the fastening part through hole; and an output shaft serrated blade disposed on the circumferential surface of the fastening shaft and engaged with the fastening part serrated blade.

[0019] The diameter of the fastening shaft can be set to be the same as the diameter of the through hole of the fastening part, and the diameter of the fixing shaft can be set to be shorter than the diameter of the fastening shaft.

[0020] The garment handling device may further include an inclined surface that connects the circumferential surface of the fixed shaft and the circumferential surface of the fastening shaft.

[0021] The garment handling device may further include a fastening cover located inside the drum, which closes the through hole of the rear cover to prevent the shaft fastening part from being exposed into the drum.

[0022] The garment processing device may include: a through hole through which the fastening cover passes; a fastening groove disposed on the output shaft; and a bolt inserted into the through hole and fixed in the fastening groove to fix the fastening cover to the output shaft.

[0023] The gear unit may include: a ring-shaped ring gear fixed to the cover; a driving gear fixed to the input shaft and located inside the cover; a retainer fixed to the output shaft and rotatable inside the cover; and a driven gear rotatably fixed to the retainer and connecting the driving gear and the ring gear.

[0024] The garment handling device may further include: a first output shaft bearing for rotatably fixing the output shaft to the cover; and a second output shaft bearing for rotatably fixing the output shaft to the cover at a position spaced apart from the first output shaft bearing.

[0025] Invention Effects

[0026] This application provides a garment handling device that facilitates the assembly of the output shaft and roller of the power transmission section.

[0027] In addition, this application provides a garment processing device that can prevent the durability of the power transmission part and the roller from decreasing when they are combined.

[0028] In addition, this application provides a garment handling apparatus that minimizes the displacement of the roller in the circumferential direction of the output shaft. Attached Figure Description

[0029] Figure 1 An example of a garment handling device is shown.

[0030] Figure 2 An example of the structure of the enclosure and the supporting panel is shown.

[0031] Figure 3 An example of a roller is shown.

[0032] Figure 4 An example of a drying section is shown.

[0033] Figure 5 An example of a fixed panel is shown.

[0034] Figure 6 and Figure 7An example of a power transmission unit is shown.

[0035] Figure 8 An example of the combined structure of the roller, fixed panel, and power transmission unit is shown.

[0036] Figure 9 , Figure 10 as well as Figure 11 Another embodiment of the combined structure of the roller and the output shaft is shown.

[0037] Figure 12 An example of a sealing part is shown.

[0038] Figure 13 and Figure 14 An embodiment of a displacement limiting part that restricts the displacement of the roller inlet is shown. Detailed Implementation

[0039] Hereinafter, embodiments of the garment handling apparatus will be described in detail with reference to the accompanying drawings.

[0040] Figure 1 This figure illustrates an example of a garment handling device 100, which may include: a housing 1; and a drum 2, rotatably disposed inside the housing, providing space for storing garments (items to be washed or dried). Figure 2 As shown, a drying section 3 can be provided inside the housing 1. The drying section 3 removes moisture from the clothes by supplying high-temperature dry air (air with a temperature higher than room temperature and a dryness level higher than indoor air) to the drum 2.

[0041] like Figure 2 As shown, the housing 1 includes: a front panel 11, forming the front surface of the garment handling device; and a base panel 17, forming the bottom surface of the garment handling device. The front panel 11 may have an inlet 111 communicating with the roller 2, and the inlet 111 may be configured to be closed by a door 113.

[0042] A control panel 115 may be provided on the front panel 11. The control panel 115 may include an input section for receiving control commands from the user and a display section for outputting user-selectable control commands and other information. The input section may include: a power request section for requesting power to the garment handling device; a process input section for allowing the user to select a desired process from a plurality of processes; and an execution request section for requesting the start of the user-selected process.

[0043] The roller 2 can have a hollow cylindrical shape. For example... Figure 3As shown, the roller 2 may include a cylindrical roller body 21 with open front and rear sides, a front cover 22 forming the front side of the roller body 21, and a rear cover 23 forming the rear side of the roller body 21.

[0044] The front cover 22 may have a roller inlet 221 that connects the inside of the roller body 21 to the outside, and the rear cover 23 may have an air inlet 233 that allows outside air to flow into the roller body 21.

[0045] The drum body 21 may also include a lifter 24. The lifter 24 is a device that causes clothes to rise and fall repeatedly inside the drum. The lifter 24 may be provided with a board extending from the front cover 22 toward the rear cover 23, the board protruding from the drum body 21 toward the rotation center of the drum 2 (protruding from the circumferential surface of the drum toward the rotation center of the drum).

[0046] When the clothing processing device 100 is used only for drying clothes, the roller 2 may not be provided with a roller through hole that connects the inside of the roller to the outside of the roller body 21.

[0047] like Figure 4 As shown, the roller 2 described above can be rotatably fixed to at least one of the main body first support portion 12 and the main body second support portion 15. Figure 4 The diagram shows an example in which the rear cover 23 is rotatably fixed to the second support portion 15 of the main body via the power transmission portion 6 described later, and the front cover 22 is rotatably connected to the first support portion 12 of the main body.

[0048] The main body first support 12 can be a support panel 121, which is fixed to the housing 1 and located between the front panel 11 and the front cover 22. The support panel 121 can also be fixed to the base panel 17, thus located between the front panel 11 and the front cover 22. In this case, the rear side (facing the support panel) of the front panel 11 can be fixed to the support panel 121, and the lower end can be fixed to the base panel 17.

[0049] The support panel 121 may include: a support panel through hole 122; a roller connecting body 123 connecting the support panel through hole 122 and the roller inlet 221; and a panel connecting body 125 connecting the support panel through hole 122 and the inlet 111. The support panel through hole 122 penetrates the support panel 121 and serves as a means of connecting the inlet 111 and the roller inlet 221.

[0050] The roller connecting body 123 can be a tube fixed to the rear side (the side facing the roller inlet in the space provided by the support panel 121). One end of the roller connecting body 123 can be configured to surround the through hole 122 of the support panel, and the free end of the roller connecting body 123 can be configured to support the front cover 22. That is, the free end of the roller connecting body 123 can be inserted into the roller inlet 221, or it can contact the free end (edge ​​of the roller inlet) of the front cover 22 forming the roller inlet 221. Figure 4 An example is shown where the free end of the roller connecting body 123 is in contact with the free end of the front cover 22.

[0051] The panel connecting body 125 may be a tube fixed to the front side (the side facing forward in the space provided by the support panel) of the support panel 121. One end of the panel connecting body 125 may be configured to surround the through hole 122 of the support panel, and the other end may be configured to be connected to the inlet 111. Therefore, clothing supplied through the inlet 111 can move to the roller body 21 through the panel connecting body 125, the through hole 122 of the support panel, the roller connecting body 123, and the roller inlet 221.

[0052] The support panel 121 is provided with an exhaust port 126 for discharging air from inside the roller 2 to the outside of the roller, and a filter 127 can be detachably fixed to the exhaust port 126. The filter 127 can also be any structure capable of filtering foreign objects in the air moving from the roller 2 to the exhaust port 126.

[0053] The support panel 121 may also be provided with a roller support portion 128 to prevent the roller 2 from sinking. The roller support portion may be a roller, which is fixed to the support panel 121 to support the roller 2 so that it can rotate. Figure 4 The illustration shows the roller support 128 supporting the front cover 22, but the roller support 128 can also support the circumferential surface of the roller body 21.

[0054] The main body second support 15 may be a fixed panel 151 fixed to the box body 1 in a position spaced apart from the rear cover 23. Figure 5 An example is shown in which the fixing panel 151 is fixed to the base panel 17 to form the rear side (rear side of the housing) of the garment handling device 100.

[0055] The mounting panel 151 may have a drive unit mounting groove 152 that provides space for mounting the motor 5. The drive unit mounting groove 152 may be a groove formed by bending the mounting panel 151 inward toward the rear cover 23 of the roller. The mounting panel 151 may have a mounting panel through hole 153 through which the shaft (output shaft) for rotating the roller 2 passes, and the mounting panel through hole 153 may be located inside the drive unit mounting groove 152.

[0056] As described above, if the roller 2 includes a roller body 21, a front cover 22 fixed to the roller body, and a rear cover 23 fixed to the roller body, then compared to a structure where the open front and rear sides of the roller body 21 are rotatably connected to the support panel 121 and the fixed panel 151 respectively, the roller has higher rigidity. Higher roller rigidity minimizes the deformation of the roller body 21 during rotation, thus minimizing the problems of clothing getting caught in the space between the roller body and the support panel, and between the roller body and the fixed panel when the roller body 21 deforms (and thus minimizing the motor load).

[0057] like Figure 4 As shown, the drying unit 3 may include: an exhaust flow path 31 connected to the exhaust port 126; a supply flow path 32 that guides the air supplied from the exhaust flow path 31 to the drum body 21; and a heat exchange unit 34 disposed inside the exhaust flow path 31, which sequentially performs air dehumidification and heating.

[0058] The exhaust flow path 31 may include a first pipe 311 connected to the exhaust port 126, a second pipe 312 connected to the supply flow path 32, and a third pipe 313 connecting the first pipe 311 and the second pipe 312. The third pipe 313 may be fixed to the base panel 17.

[0059] The heat exchange section 34 can be any device capable of sequentially dehumidifying and heating the air flowing into the exhaust flow path 31. Figure 4 This illustrates an example where the heat exchange section 34 is a heat pump. Specifically, the heat exchange section 34 includes: a first heat exchanger (heat absorber) 341, which removes moisture from the air flowing into the exhaust passage 31; a second heat exchanger (heat generator) 343, disposed inside the exhaust passage 31, which heats the air passing through the heat absorber 341; and a fan 349, which directs the air discharged from the drum 2 through the heat absorber and the heat generator sequentially to the supply pipe 32.

[0060] The heat-absorbing part 341 and the heat-generating part 343 are arranged sequentially along the direction of air movement and are connected to each other by a refrigerant pipe 348 that forms a refrigerant circulation path. The refrigerant is moved along the refrigerant pipe 348 by a compressor 345 located outside the exhaust path 31, and a pressure regulator 347 for adjusting the pressure of the refrigerant is provided in the refrigerant pipe 348.

[0061] like Figure 5 As shown, the air inlet 233 of the rear cover 23 of the roller can be configured such that a plurality of holes surround the center of the rear cover 23 (the rotation center of the roller). In this case, the supply flow path 32 may include: a supply pipe 321 disposed on the fixed panel 151, forming a movement path for air discharged from the second pipe 312; a first flow path forming part 323 and a second flow path forming part 324, which guide the air inside the supply pipe 321 to the air inlet 233.

[0062] The supply pipe 321 can be bent in a direction away from the rear cover 23 by the fixed panel 151 to form a flow path (air movement path). In addition, the supply pipe 321 may have an annular shape surrounding the drive unit mounting groove 152, and the outlet of the second pipe 312 may be connected to the circumferential surface of the supply pipe 321.

[0063] The first flow path forming part 323 may be configured to surround the outer circumferential surface of the ring formed by the plurality of air inlets 233 (the circumferential surface with the longer diameter among the two circumferential surfaces of the ring), and the second flow path forming part 324 may be configured to surround the inner circumferential surface of the ring formed by the plurality of air inlets 233 (the circumferential surface with the shorter diameter among the two circumferential surfaces of the ring).

[0064] The first flow path forming part 323 and the second flow path forming part 324 can be fixed to the rear cover 23 or to the supply pipe 321. Figure 5 This illustrates an example of a plurality of the flow path forming portions 323, 324 being fixed to the rear cover 23.

[0065] exist Figure 5 In this case, the free end of the first flow path forming portion 323 is configured to surround the outer circumferential surface of the flow path (annular flow path) formed by the supply pipe 321, and the free end of the second flow path forming portion 324 surrounds the inner circumferential surface of the flow path formed by the supply pipe 321. The first flow path forming portion 323 and the second flow path forming portion 324 may be made of rubber or felt, etc.

[0066] The motor 5 that generates the power required to rotate the roller 2 includes: a stator 51 located in the drive unit mounting slot 152, forming a rotating magnetic field; and a rotor 52 that rotates by the rotating magnetic field. The rotational motion of the rotor 52 is transmitted to the roller 2 through a power transmission unit 6 fixed to the fixed panel 151, and the stator 51 is fixed to at least one of the fixed panel 151 or the power transmission unit 6.

[0067] If the stator 51 is fixed to the power transmission unit 6, it has the effect of maintaining the coaxiality of the input shaft 64 and the output shaft 65 provided in the power transmission unit 6 (which can minimize the vibration of the garment handling device when the drum rotates and minimize the reduction in the durability of the power transmission unit).

[0068] To prevent the motor 5 located in the drive unit mounting slot 512 from being exposed to the outside (improving motor durability and preventing safety accidents by preventing motor exposure to the external environment), a cover panel 19 may also be provided on the mounting panel 151 to prevent the motor 5 from being exposed to the outside. Furthermore, the cover panel 19 may have a shape that prevents the supply pipe 321 from being exposed to the outside (a shape that surrounds the supply pipe). This is not only to minimize heat loss to the outside of the supply pipe 321, but also to prevent safety accidents that may occur when a person comes into contact with the supply pipe 321.

[0069] The stator 51 includes: a ring-shaped core 511 having a through hole (core through hole) at the center; a plurality of support bars 513 radiating outward from the outer circumferential surface of the core 511; an insulator 512 insulating the core and the support bars; and a coil 514 surrounding the support bars 513.

[0070] The rotor 52 may include: a rotor body 521 having a disc shape; a rotor circumferential surface 522 extending from the edge of the rotor body 521 toward the fixed panel 515 to form a space for accommodating the stator 51; and a plurality of permanent magnets 523 fixed to the rotor circumferential surface 522 in a manner that alternately exposes the N pole and the S pole.

[0071] Figure 6 An example of a power transmission section 6 connecting the rotor 52 and the rear cover 23 of the drum is shown.

[0072] The power transmission unit 6 includes: a cover H, fixed to the fixed panel 151; an input shaft 64, rotatably fixed to the bottom surface (facing the rotor) of the cover H; an output shaft 65, rotatably fixed to the upper surface (facing the fixed panel) of the cover H; and a gear unit G, disposed inside the cover, for transmitting the rotational motion of the input shaft 64 to the output shaft 65.

[0073] The input shaft 64 can be a shaft with one end fixed to the rotor 52 and the other end located inside the cover H, and the output shaft 65 can be a shaft with one end fixed to the rear cover 23 and the other end located inside the cover H. The gear unit G is configured to connect one end of the input shaft 64 located inside the cover H and one end of the output shaft 65 located inside the cover.

[0074] The cover H is preferably fixed to the fixed panel 151 and located in a space separate from the space where the roller 2 is located (the internal space of the box) (the external space of the box). This is to improve the durability of the power transmission part 6 by minimizing the amount of heat (heat released from the roller or drying section) inside the box transferred to the interior of the cover H.

[0075] The input shaft 64 can be coupled to the rotor body 521 via the shaft fixing part 54. The shaft fixing part 54 may include a shaft fixing hole 543 for fixing one end of the input shaft 64.

[0076] The output shaft 65 is inserted into the through hole 153 of the fixed panel and connected to the rear cover 23. The rear cover 23 may be provided with a shaft fastening part 25 to fix the output shaft 65. This is to distribute the stress acting on the center of the rear cover 23 when the output shaft 65 rotates. The specific structure of the shaft fastening part 25 will be described later.

[0077] In order to minimize the deformation of the fixed panel 151, the cover H can be fixed to the fixed panel 151 by means of the transfer bracket 61 and the cover fastening part 612.

[0078] like Figure 5 As shown, the transfer bracket 61 may have a bracket through hole 611 through which the output shaft 65 passes, and the cover fastener 612 may be a bolt connecting the cover H and the transfer bracket 61. The transfer bracket 61 may be formed of the same material as the fixing panel 151, or it may be formed of a material with higher rigidity than the fixing panel 151.

[0079] like Figure 6As shown, the cover H may include: a cover body 62 having a hollow cylindrical shape and an open hole on the side facing the fixing body 151; and a cover 63 fixed to the cover body 62 and closing the open hole.

[0080] The main body 62 of the cover can form a receiving space 621 for mounting the gear unit G. The receiving space 621 can be formed by a cover base 62a for fixing the input shaft 64 and a cover circumferential surface 62b extending from the edge of the cover base 62a toward the cover cover 63.

[0081] like Figure 7 As shown, the cover body 62 is provided with an input shaft support portion 625 extending from the cover base 62a toward the rotor 52. The input shaft support portion 625 may be a tube surrounding the input shaft through hole 626 that passes through the cover body 62.

[0082] The input shaft 64, inserted into the input shaft through hole 626, is rotatably fixed to the input shaft support 625 via input shaft bearings 628 and 629. The input shaft bearings may include: a first input shaft bearing 628, fixed to the input shaft support 625; and a second input shaft bearing 629, fixed inside the input shaft through hole 626, located between the first input shaft bearing 628 and the rotor 52.

[0083] The cover 63 can have any shape that allows it to open and close the opening provided in the cover body 62. Figure 7 This illustrates an example where the cover 63 is configured as a disc-shaped cover body 631. The cover 63 can be fixed to the cover body 62 by a cover fixing plate 623 provided on the circumferential surface 62b of the cover body.

[0084] The cover 63 may include: an output shaft through hole 632 that penetrates the cover body 631; and a tubular output shaft support 635 that extends from the cover body 631 toward the fixed panel 151 and surrounds the output shaft through hole 632.

[0085] The output shaft support portion 635 may be provided with output shaft bearings 638 and 639 for rotatably fixing the output shaft 65 to the output shaft through hole 632.

[0086] The output shaft bearing may include a first output shaft bearing 638 and a second output shaft bearing 639, which are fixed to the output shaft support 635 and located inside the output shaft through hole 631.

[0087] The cover 63 is provided with a mounting portion 637 for fixing the stator 51. A plurality of mounting portions 637 may be provided along the circumferential surface of the cover body 631, and the stator 51 may be fixed to the cover H by bolts connecting the insulator 512 and the mounting portion 637.

[0088] As previously described, the cover H is fixed to the fixed panel 151 by the cover fastening part 612, the stator 51 is fixed to the cover H by the mounting part 637, and the rotor 52 is fixed to the cover H by the input shaft 64. Since the stator 51 and the rotor 52 are fixed to the cover H (because the stator and rotor vibrate together with the cover), the degree of decrease in coaxiality between the input shaft 64 and the output shaft 65 can be minimized.

[0089] The gear unit G may include: a ring gear 66, fixed to the circumferential surface 62b of the cover and located in the receiving space 621; a driving gear 69, fixed to the input shaft 64 and located inside the receiving space 621; a retainer 67, located inside the receiving space 622, with the other end of the output shaft 65 fixed to the retainer 67; and a driven gear 68, rotatably fixed to the retainer 67, connecting the driving gear 69 and the ring gear 66.

[0090] The ring gear 66 may include: a gear body 661, fixed to the circumferential surface 62b of the cover; a gear body through hole 663, penetrating the gear body; and gear teeth 665, arranged along the inner circumferential surface of the gear body.

[0091] The retainer 67 may include: a first base 671 located inside the gear body through hole 663, one end of the output shaft 65 being fixed to the first base 671; a second base 672 located inside the gear body through hole 663, having a base through hole 673 in the center; and a connecting shaft 675 connecting the first base and the second base to form the rotation shaft of the driven gear 68. Since the output shaft 65 is fixed to the first base 671, whether the output shaft 65 rotates is determined by whether the retainer 67 rotates.

[0092] The driven gear 68 may have a plurality of gears rotatably fixed to the connecting shaft 675. The figure shows an example of a case in which the driven gear includes a first driven gear 681, a second driven gear 682, and a third driven gear 683.

[0093] The input shaft 64 is inserted into the through hole 673 of the base and forms a coaxial structure with the output shaft 65. The gear teeth of the driving gear 69 are located in the space formed between the plurality of driven gears and mesh with the gear teeth of the plurality of driven gears 682, 682, 683.

[0094] The operation of the power transmission unit 6 described above is as follows: When the rotor 52 rotates, the input shaft 64 rotates. If the driving gear 69 rotates through the input shaft 64, the plurality of driven gears 681, 682, and 683 meshing with the driving gear 69 also rotate. The plurality of driven gears 681, 682, and 683 are in a state of meshing with the ring gear 66 fixed to the cover body 62. Therefore, when the driven gear 68 rotates, the cage 67 and the output shaft 65 rotate, and the roller 2 fixed to the output shaft 65 will also rotate.

[0095] As previously mentioned, in order to distribute the stress acting on the center of the rear cover 23 when the output shaft 65 rotates (in order to minimize the reduction in the durability of the rear cover), the output shaft 65 is connected to the rear cover 23 of the roller via the shaft fastener 25.

[0096] That is, such as Figure 8 As shown, the rear cover 23 has a rear cover through hole 231, and the shaft fastening part 25 can be fixed to the rear cover 23 to close the rear cover through hole 231.

[0097] The shaft fastening part 25 may include: a fastening body (first fastening body) 251, fixed to the rear cover 23; a connecting body 253, extending from the fastening body 251 and inserted into the through hole 231 of the rear cover; and a fastening tube 257, fixed to the connecting body 253 and located inside the roller 2.

[0098] The fastening tube 257 may be a tube into which one end of the output shaft 65 is inserted. Inside the fastening tube 257 is a fixing plate 258 that contacts one end of the output shaft 65. The fixing plate 258 has a fixing plate through hole 259. The fixing plate through hole 259 is connected to a fastening groove 654 provided on the output shaft 65.

[0099] On the other hand, in order to prevent the fastening tube 257 from being exposed into the drum (in order to prevent the durability of the output shaft from being reduced), the fastening cover 27 can be fixed to the rear cover 23.

[0100] The fastening cover 27 can be any shape that closes the rear cover through hole 231 and prevents the shaft fastening part 25 from being exposed to the inside of the roller. Figure 8 An example is shown where the fastening cover 27 has a conical shape.

[0101] The fastening cover 27 has a cover through hole 271 that communicates with the through hole 259 of the fixing plate and the fastening groove 654. Therefore, if the roller fastening part 275 is inserted into the cover through hole 271 and the through hole 259 of the fixing plate and fixed in the fastening groove 654, the fastening cover 27 and the output shaft 65 can be completely fixed to the shaft fastening part 25.

[0102] In order to combine the output shaft 65 of the above structure with the shaft fastening part 25, the operator needs to adjust the position of the roller 2 to insert the output shaft 65 into the fastening tube 257. However, since the diameter of the fastening tube 257 is small, there is a disadvantage that it takes a long time to insert the output shaft 65 into the fastening tube 257.

[0103] If the output shaft 65 is inserted into the fastening tube 257, the operator needs to insert the roller fastening part 275 into the cover through hole 271 and the fixing plate through hole 259 and then fix it into the fastening groove 654. That is, in order to engage the roller fastening part 275 into the fastening groove 654, the roller 2 needs to be kept resting on the output shaft 65. However, if the fixing plate through hole 259 and the fastening groove 654 are not aligned, the assembly time may be increased when fastening the roller fastening part 275.

[0104] Furthermore, if the roller 2 continues to rest on the output shaft 65, there is a risk of reduced durability of the power transmission unit 6. This is because, if the roller 2 rests on the output shaft 65, the external force caused by the load of the roller 2 is transmitted to the output shaft 65 through the fastening tube 257, and the external force transmitted to the output shaft 65 is transmitted to the gear unit G, including the output shaft bearings 638 and 639.

[0105] To address the aforementioned problems that may occur during the assembly of the roller and the output shaft, the shaft fastening part 25 and the output shaft 65 may have... Figures 9 to 10 The structure.

[0106] The characteristic is that, Figure 9 The shaft fastening part 25 prevents the durability of the power transmission part 6 from being reduced by minimizing the magnitude of the external force input to the output shaft 65, and the output shaft 65 and the shaft fastening part 25 can be connected by the nut 256, thereby shortening the assembly time.

[0107] The shaft fastening part 25 of this embodiment may include: a first fastening body 251, fixed to the rear cover 23; a connecting body 255, extending from the first fastening body 251 and inserted into the through hole 231 of the rear cover; and a second fastening body 252, fixed to the connecting body 255 and located inside the roller 2. The second fastening body 252 has a fastening through hole 253 for the output shaft 65 to be inserted.

[0108] like Figure 10 As shown, the output shaft 65 includes: a fastening shaft 651 located inside the cover H and fixed to the retainer 67; and a fixing shaft 652 extending from the fastening shaft 651 and inserted into the fastening part through hole 253.

[0109] The circumferential surface of the fixed shaft 652 has a thread 653. Therefore, the nut 256 engages with one end 652 of the output shaft through the through hole 253 of the fastening part, thereby fixing the output shaft 65 and the shaft fastening part 25.

[0110] The assembly of the roller 2 and the output shaft 65 is performed through the following process: the process of fixing the fixing panel 151 of the power transmission part 6 to the base panel 17, the process of inserting the output shaft 65 into the through hole 253 of the fastening part, the process of fixing the support panel 121 to the base panel 17 to fix the position of the front cover 22, and the process of connecting the output shaft 65 and the shaft fastening part 25 by means of the nut 256.

[0111] Before the support panel 121 is fixed to the base panel 17, the output shaft 65 remains inserted into the through hole 253 of the fastening part. However, compared to the embodiment with the fastening tube 257, this embodiment can maintain a greater tilt angle of the roller. That is, in Figure 8 In the previous embodiment, because of the fastening tube 257, it was impossible to place the front cover 22 of the roller onto the upper surface of the exhaust flow path 31 or the base 17, etc. However, in this embodiment, the front cover 22 can be placed onto the upper surface of the exhaust flow path 31 or the base panel 17, etc. Therefore, it has Figure 10 The garment handling device of the shaft fastening part 25 shown can minimize the reduction in durability of the power transmission part 6.

[0112] On the other hand, in this embodiment, the diameter of the connecting body 255 decreases from the first fastening body 251 toward the second fastening body 252. If the shape of the connecting body 255 is as described above, the fixing shaft 652 is guided along the surface of the connecting body 255 to the fastening portion through hole 253. Therefore, in this embodiment, the time required to insert the fixing shaft 652 into the fastening portion through hole 253 can be shortened.

[0113] In order to securely connect the shaft fastening part 25 and the output shaft 65, a fastening part serration may be provided on the shaft fastening part 25, and an output shaft serration may also be provided on the output shaft 65.

[0114] like Figure 11 As shown, the fastening part sawtooth blade 254 can be a protrusion that protrudes from the edge of the fastening part through hole 253 toward the center of the fastening part through hole 253, and the output shaft sawtooth blade 657 can be a groove provided on the circumferential surface of the fastening shaft 651 and engaged with the fastening part sawtooth blade 254.

[0115] To facilitate the engagement of the fastening serrated edge 254 and the output shaft serrated edge 657, the output shaft 65 may also have an inclined surface 655, which connects the fastening shaft 651 and the fixing shaft 652, guiding the fastening serrated edge 254 to the output shaft serrated edge 657.

[0116] That is, the diameter of the fastening shaft 651 is set to be the same as the diameter of the through hole 253 of the fastening part, the diameter of the fixing shaft 652 is set to be shorter than the diameter of the fastening shaft 651, and the inclined surface 655 can connect the circumferential surface of the fixing shaft 652 and the circumferential surface of the fastening shaft 651.

[0117] To prevent the shaft fastening part 25 from being exposed into the roller 2, this embodiment may also have a fastening part cover 27. The fastening part cover 27 may be any shape that closes the rear cover through hole 231 and prevents the shaft fastening part 25 from being exposed.

[0118] like Figure 10 As shown, the fastening cover 27 can be fixed to the output shaft 65 by bolts 273. The bolts 273 are inserted into the cover through hole 271 and fixed to the fastening groove 654 of the fixed shaft 652.

[0119] In the garment processing apparatus 100 with the above-described structure, the air supplied to the drum 3 via the drying section 3 may be discharged to the outside of the drum through the drum inlet 221. To minimize the disadvantages described above, the garment processing apparatus 100 may also include a sealing section 7 to minimize the amount of air leakage through the drum inlet 221.

[0120] like Figure 12 As shown, the sealing part 7 can be disposed on the support panel 121.

[0121] The support panel 121 may be provided with an annular mounting groove 129 surrounding the roller connecting body 123, and the sealing part 7 may be provided in the mounting groove 129. That is, the sealing part 7 may be an annular sealing body 71 fixed to the mounting groove 129 and in contact with the edge of the roller inlet 221.

[0122] The sealing body 71 may be made of felt (compressed fibers, etc.). This is to minimize the friction between the roller and the sealing body 71 while sealing the roller inlet 221.

[0123] On the other hand, in order to attenuate the vibration of the roller 2 when it vibrates along the length direction (Z-axis direction) of the housing, a damper 73 can also be provided in the mounting groove 129. The damper 73 can be made of a material with high elasticity, such as rubber, and has a ring shape. In this case, the sealing body 71 needs to be fixed to the damper 73.

[0124] In the garment handling apparatus 100 with the above-described structure, when the roller 2 rotates, the roller inlet 221 can vibrate radially along the inlet 122. In order to limit the vibration range of the roller inlet 221 in the radial direction of the inlet, the garment handling apparatus 100 may also have a displacement limiting part.

[0125] like Figure 13 As shown, the displacement limiting part 13 may be a protrusion 131 protruding from the roller connecting body 123 toward the roller input port 221. Although not shown, the displacement limiting part 13 may also be provided on the front cover 22. That is, the displacement limiting part may also be a protrusion protruding from the roller input port 221 toward the roller connecting body 123.

[0126] The displacement limiting part 13 may have a plurality of parts. That is, the displacement limiting part 13 may include a plurality of limiting parts 13a, 13b, 13c that are spaced apart from each other at the same angle with the inlet 122 as the center.

[0127] Although not shown, the displacement limiting part may include a first limiting part and a second limiting part that are 180 degrees apart from each other with the inlet 122 as the center, or it may include a first limiting part, a second limiting part and a third limiting part that are 120 degrees apart from each other with the inlet 122 as the center.

[0128] In any case, one of the plurality of limiting parts 13a, 13b, 13c is preferably positioned to contact the uppermost end of the roller inlet 221. When the output shaft 65 is arranged parallel to the base 17, the front cover sinks towards the base 17 due to its own weight. Therefore, if one of the limiting parts is positioned as described above, the displacement of the roller inlet caused by the sinking of the roller can be minimized.

[0129] When the displacement limiting part 13 includes a protrusion 131 provided on the support panel 121, the material of the protrusion 131 is preferably set to be the same as the material of the support panel 121. This is to ensure ease of manufacturing.

[0130] In addition, in order to minimize the friction caused by the displacement limiting part 13, preferably, the front cover 22 is made of metal, and the displacement limiting part 13 is made of a material (such as plastic) with a lower hardness than the front cover 22.

[0131] Figure 14 The illustration shows a displacement limiting part 14 comprising an annular felt fixed to the roller connecting body 123. Specifically, in this embodiment, the felt is fixed to the roller connecting body 123 and located between the circumferential surface of the roller connecting body 123 and the roller inlet 221.

[0132] The displacement limiting part 14 can be formed by bending the lower end of the sealing body 71, or by providing an additional felt separate from the sealing body 71 to the lower end of the sealing body 71.

[0133] The above-described garment processing device can be implemented in various forms, and the scope of this application is not limited to the above embodiments.

Claims

1. A garment processing device, characterized in that, include: A roller has a roller body, a front cover, a rear cover, a roller inlet, and a through hole in the rear cover. The roller body provides space for storing clothes. The front cover forms the front of the roller body, and the rear cover forms the rear of the roller body. The roller inlet passes through the front cover, and the through hole in the rear cover passes through the rear cover. A motor having a stator and a rotor, the stator forming a rotating magnetic field, and the rotor being rotated by the rotating magnetic field; A fixed panel is located between the rear cover and the motor; A through hole in the fixed panel, penetrating the fixed panel; The power transmission unit includes a cover, an input shaft, an output shaft, and a gear unit. The cover is fixed to the fixed panel and fixes the stator. One end of the input shaft is fixed to the rotor and the other end is located inside the cover. One end of the output shaft is inserted into the through hole of the fixed panel and the other end is located inside the cover. The gear unit is located inside the cover and transmits the rotational motion of the input shaft to the output shaft. The shaft fastening part is fixed to the rear cover and closes the through hole of the rear cover; A fastening cover is located inside the roller and seals the through hole of the rear cover to prevent the shaft fastening part from being exposed into the roller. A through hole for fastening the shaft, through which one end of the output shaft is inserted; and A nut is attached to one end of the output shaft through the through hole of the fastening part to fix the output shaft to the shaft fastening part.

2. The garment processing device according to claim 1, characterized in that, The shaft fastening part includes: The first fastening body is fixed to the rear cover; The second fastening body is located inside the roller and has the through hole of the fastening part; and The connecting body connects the first fastening body and the second fastening body and is inserted into the through hole of the rear cover.

3. The garment processing device according to claim 2, characterized in that, The diameter of the connecting body is set such that it decreases from the first fastening body toward the second fastening body.

4. The garment processing device according to claim 3, characterized in that, The output shaft includes: The fastening shaft is located inside the cover and is connected to the gear unit; A fixed shaft extends from the fastening shaft and is inserted into the through hole of the fastening part; and A thread is provided on the circumferential surface of the fixed shaft for engagement with the nut.

5. The garment processing apparatus according to claim 4, characterized in that, Also includes: The serrated edge of the fastening part protrudes from the edge of the through hole of the fastening part toward the center of the through hole of the fastening part; as well as The output shaft sawtooth blade is disposed on the circumferential surface of the fastening shaft and is engaged with the sawtooth blade of the fastening part.

6. The garment processing apparatus according to claim 5, characterized in that, The diameter of the fastening shaft is set to be the same as the diameter of the through hole of the fastening part. The diameter of the fixed shaft is set to be shorter than the diameter of the fastening shaft.

7. The garment processing apparatus according to claim 6, characterized in that, It also includes an inclined surface that connects the circumferential surface of the fixed shaft and the circumferential surface of the fastening shaft.

8. The garment processing apparatus according to claim 1, characterized in that, include: The cover has a through hole that passes through the fastening cover; A fastening groove is provided on the output shaft; as well as Bolts are inserted into the through hole of the cover and fixed in the fastening groove to fix the fastening cover to the output shaft.

9. The garment handling apparatus according to any one of claims 1 to 7, characterized in that, The gear unit includes: A ring-shaped ring gear is fixed to the cover. The drive gear is fixed to the input shaft and located inside the cover. A retainer, fixed to the output shaft, is rotatable within the housing; and The driven gear is rotatably fixed to the cage and connects the driving gear and the ring gear.

10. The garment processing apparatus according to claim 9, characterized in that, Also includes: A first bearing for the output shaft rotatably secures the output shaft to the housing; and The output shaft second bearing rotatably fixes the output shaft to the cover, and fixes it at a position spaced apart from the output shaft first bearing.

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