Laundry treating apparatus

Abstract

A laundry treating apparatus includes a drum having a drum main body providing a space to store laundry, a front cover forming a front face of the drum main body, a rear cover forming a rear face of the drum main body, and a rear cover through-hole provided to penetrate the rear cover, a fixing plate provided at a position spaced apart from the rear cover, a power transmission part having a housing fixed to the fixing plate, an input shaft having one end located outside the housing and the other end located inside the housing, an output shaft having one end penetrating the fixing plate and fixed to the rear cover and the other end located inside the housing, and a gear unit located inside the housing and transmitting a rotational motion of the input shaft to the output shaft, a motor having a stator fixed to the fixing plate or the housing and forming a rotating field, and a rotor fixed to one end of the input shaft and rotated by the rotating field, a support plate provided at a position spaced apart from the front cover, a drop inlet provided to penetrate the support plate, a drum connection main body protruding from the support plate toward the front cover and inserted into the drum drop inlet, and provided to surround the drop inlet, and a displacement restriction part provided to the drum connection main body and restricting displacement of the drum drop inlet in a radial direction of the drop inlet.

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 (washed items or dried items), dryers that dry clothes, and other devices that can perform both washing and drying of clothes.

[0003] Typically, a washing machine is configured to include: 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] Typically, the washing drive unit includes: a stator fixed to the outer tub and forming 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; while the drying drive unit includes: a motor; a pulley fixed to the rotating shaft of the motor; and a transmission belt (power transmission unit) that connects the rotational motion of the pulley to the drying drum.

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

[0006] On the other hand, existing drying drive units generally employ a structure where the drying drum and the motor's rotating shaft are connected by a power transmission component such as a drive belt. This is because, in dryers, the necessity of maintaining a high rotational speed of the drying drum or changing its rotation direction is relatively low, so rotating the drying drum via a power transmission component such as a drive belt is acceptable. However, if the rotational speed and direction of the drying drum could be changed, the movement of clothes inside the drum could be controlled, thus potentially leading to shorter drying times and improved drying performance.

[0007] There is an existing dryer that has a drying drive unit (Korean Patent Application Publication No. 10-2020-0065931) that connects the rotor and the drying drum via a reducer (power transmission unit). The 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, thus potentially reducing drying time or improving drying performance. However, it suffers from drawbacks such as difficulty in assembling the drying drum and the reducer's output shaft, and the potential decrease 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, while the vibration of the rear of the drying drum, which is fixed to the output shaft of the reducer, can be relatively easily controlled in existing dryers, additional components are required to control the vibration of the front of the drying drum formed at the drum inlet. Summary of the Invention

[0009] The problem to be solved

[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 of the power transmission unit and the roller.

[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 unit and the roller from decreasing when they are combined.

[0012] In addition, the problem to be solved by this application is to provide a method 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 provides a garment processing device, comprising: a roller having a roller body, a front cover, a rear cover, 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; and the rear cover through hole penetrating the rear cover; a fixing plate disposed at a position spaced apart from the rear cover; and a power transmission unit having an outer cover, an input shaft, an output shaft, and a gear unit; the outer cover being fixed to the fixing plate; one end of the input shaft being located outside the outer cover and the other end being located inside the outer cover; and one end of the output shaft penetrating the fixing plate and fixed to the rear cover, while the other end being located... Inside the outer casing, the gear unit is located inside the outer casing and transmits the rotational motion of the input shaft to the output shaft; the motor has a stator fixed to the fixed plate or the outer casing and forming a rotating magnetic field, and a rotor fixed to one end of the input shaft and rotating through the rotating magnetic field; a support plate is disposed at a position spaced apart from the front cover; an inlet is configured to penetrate the support plate; a roller connecting body protrudes from the support plate toward the front cover and is inserted into the roller inlet, and is configured to surround the inlet; and a displacement limiting part is disposed on the roller connecting body and limits the displacement of the roller inlet in the radial direction of the inlet.

[0015] The displacement limiting part can be configured as a protrusion extending from the roller connecting body toward the roller inlet.

[0016] 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 as the center.

[0017] The displacement limiting part 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 as the center.

[0018] Any one of the first limiting part, the second limiting part, and the third limiting part can be configured to contact the uppermost end of the roller inlet.

[0019] The first limiting part, the second limiting part, and the third limiting part may be formed of the same material as the support plate.

[0020] The front cover may be made of metal, and the displacement limiting part may be made of a material with a hardness lower than that of the front cover.

[0021] The displacement limiting part can be configured as a protrusion extending from the roller inlet toward the roller connecting body.

[0022] The garment handling device may further include: a mounting groove disposed on the support plate and formed by an annular groove surrounding the roller connecting body; and a sealing portion disposed in the mounting groove and in contact with the edge of the roller inlet.

[0023] The sealing part may include: a damper fixed to the mounting groove; and an annular sealing body fixed to the damper and in contact with the edge of the roller inlet.

[0024] The displacement limiting part can be formed of felt fixed to the roller connecting body and located between the circumferential surface of the roller connecting body and the roller inlet.

[0025] The sealing body and the displacement limiting part can be made of the same material.

[0026] Invention Effects

[0027] This application provides a garment handling device that is easy to assemble with the output shaft and roller of the power transmission section.

[0028] In addition, this application provides a garment processing apparatus that can prevent the durability of the power transmission unit and the roller from decreasing when they are combined.

[0029] In addition, this application provides a garment handling apparatus that can minimize the displacement of the roller in the circumferential direction of the output shaft. Attached Figure Description

[0030] Figure 1 This is a diagram showing an example of a garment handling device.

[0031] Figure 2 This is a diagram showing an example of the structure of the box and the support plate.

[0032] Figure 3 This is a diagram showing an example of a roller.

[0033] Figure 4 This is a diagram showing an example of a drying section.

[0034] Figure 5 This is a diagram showing an example of a fixing plate.

[0035] Figure 6 and Figure 7 This is a diagram showing an example of a power transmission unit.

[0036] Figure 8 This is a diagram showing an example of the combined structure of the roller, the fixed plate, and the power transmission unit.

[0037] Figure 9 , Figure 10 as well as Figure 11This is a diagram illustrating another embodiment of the combined structure of the roller and the output shaft.

[0038] Figure 12 This is a diagram showing an example of a sealing part.

[0039] Figure 13 and Figure 14 This is a diagram illustrating an embodiment of a displacement limiting part that restricts the displacement of the roller inlet. Detailed Implementation

[0040] Hereinafter, embodiments of the garment handling apparatus will be described in detail with reference to the accompanying drawings.

[0041] Figure 1 This is a diagram illustrating an example of a garment handling device 100, which may be configured to include a housing 1 and a drum 2 rotatably disposed inside the housing and providing space for storing garments (items to be washed or dried). Figure 2 As shown, a drying section 3 can be installed inside the housing 1 to remove moisture from clothing by supplying high-temperature dry air (air with a temperature higher than room temperature and a dryness level higher than indoor air) to the roller 2.

[0042] like Figure 2 As shown, the housing 1 includes a front plate 11 forming the front surface of the garment handling device and a bottom plate 17 forming the bottom surface of the garment handling device. An inlet 111 communicating with the roller 2 can be provided on the front plate 11, and the inlet 111 is configured to be locked by a door 113.

[0043] A control board 115 can be provided on the front panel 11. The control board 115 has an input section for receiving control commands from the user and a display section for outputting information such as control commands selectable by the user. The input section can be configured to include: a power supply 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 process selected by the user.

[0044] The roller 2 can be formed from a hollow cylindrical shape. For example... Figure 3 As shown, the roller 2 can be configured to include: a roller body 21, with the front and rear sides being open cylindrical shapes; 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.

[0045] A roller inlet 221 that connects the inside of the roller body 21 to the outside can be provided on the front cover 22, and an air inlet 233 that allows external gas to flow into the roller body 21 can be provided on the rear cover 23.

[0046] A lifter 24 may also be provided on the drum body 21. The lifter 24 is a component for repeatedly raising and lowering clothes inside the drum. The lifter 24 may be configured as a board extending from the front cover 22 toward the rear cover 23, formed by protruding from the drum body 21 toward the rotation center of the drum 2 (protruding on the circumferential surface of the drum toward the rotation center of the drum).

[0047] If the clothing processing device 100 is configured as a device for drying clothes only, the roller through hole may not be provided in the roller 2. The roller through hole is configured to penetrate the roller body 21 to connect the inside of the roller with the outside of the roller.

[0048] like Figure 4 As shown, the roller 2 described above can be rotatably fixed to at least one of the first support portion 12 and the second support portion 15 of the main body. Figure 4 An example is shown in which the rear cover 23 is rotatably fixed to the second support portion 15 of the main body via the power transmission unit 6 described later, and the front cover 22 is rotatably connected to the first support portion 12 of the main body.

[0049] The main body first support 12 can be configured as a support plate 121 fixed to the housing 1 and located between the front plate 11 and the front cover 22. The support plate 121 can be configured to be located between the front plate 11 and the front cover 22 by being fixed to the bottom plate 17. In this case, the rear side (the side facing the support plate) of the front plate 11 can be fixed to the support plate 121, and the lower end can be fixed to the bottom plate 17.

[0050] The support plate 121 may be configured to include: a support plate through hole 122; a roller connecting body 123 connecting the support plate through hole 122 and the roller inlet 221; and a plate connecting body 125 connecting the support plate through hole 122 and the inlet 111. The support plate through hole 122 is a component configured to penetrate the support plate 121 and communicate the inlet 111 with the roller inlet 221.

[0051] The roller connecting body 123 can be formed by a tube fixed to the rear side (the side facing the roller inlet in the space provided by the support plate 121). One end of the roller connecting body 123 can be configured to surround the through hole 122 of the support plate, 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 configured to be inserted into the roller inlet 221, or it can be configured to contact the free end (edge ​​of the roller inlet) of the front cover 22 forming the roller inlet 221. Figure 4The figure is shown as an example of a situation where the free end of the roller connecting body 123 is in contact with the free end of the front cover 22.

[0052] The plate connecting body 125 can be formed by a tube fixed to the front side (the side facing the front plate in the space provided by the support plate) of the support plate 121. One end of the plate connecting body 125 can be configured to surround the through hole 122 of the support plate, and the other end of the plate connecting body 125 can be configured to connect to the inlet 111. Therefore, clothing supplied to the inlet 111 can be moved to the roller body 21 through the plate connecting body 125, the through hole 122 of the support plate, the roller connecting body 123, and the roller inlet 221.

[0053] An exhaust port 126 can be provided on the support plate 121 to discharge the air 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 be configured to filter foreign objects from the air that moves from the roller 2 to the exhaust port 126.

[0054] A roller support portion 128 can also be provided on the support plate 121 to prevent the roller 2 from sagging. The roller support portion can be formed by a roller fixed to the support plate 121 and rotatably supporting the roller 2. Although Figure 4 The figure shows the case where the roller support 128 is configured to support the front cover 22, but the roller support 128 can also be configured to support the circumferential surface of the roller body 21.

[0055] The main body second support 15 can be configured to be fixed to the box body 1 in a position spaced apart from the rear cover 23 by a fixing plate 151. Figure 5 The figure shows an example of a case where the fixing plate 151 is fixed to the base plate 17 and forms the rear side (rear side of the box) of the clothing handling device 100.

[0056] A drive unit mounting groove 152 can be provided in the fixing plate 151 to provide space for mounting the motor 5. The drive unit mounting groove 152 can be configured as a groove that is recessed and bent from the fixing plate 151 toward the rear cover 23 of the roller. A fixing plate through hole 153 can be provided in the fixing plate 151 to pass through the shaft (output shaft) that rotates the roller 2, and the fixing plate through hole 153 is located inside the drive unit mounting groove 152.

[0057] As described above, if the roller 2 is formed by a roller body 21, a front cover 22 fixed to the roller body, and a rear cover 23 fixed to the roller body, the rigidity of the roller will be higher than that of a structure where the open front and rear sides of the roller body 21 are rotatably connected to the support plate 121 and the fixing plate 151, respectively. If the rigidity of the roller is increased, the deformation of the roller body 21 can be minimized when the roller rotates. This minimizes the problem of clothing being trapped in the space between the roller body and the support plate, and between the roller body and the fixing plate, when the roller body 21 deforms (and minimizes the load on the motor).

[0058] like Figure 4 As shown, the drying unit 3 may be configured to 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 and sequentially dehumidifying and heating the air.

[0059] The exhaust flow path 31 may be configured to 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 connected to the first pipe 311 and the second pipe 312. The third pipe 313 may be fixed to the base plate 17.

[0060] The heat exchange section 34 can be formed by various devices that can sequentially dehumidify and heat the air flowing into the exhaust flow path 31. Figure 4 The diagram illustrates, as an example, the heat exchange section 34 formed by a heat pump. Specifically, the heat exchange section 34 includes: a first heat exchanger 341 (heat absorption section) that removes moisture from the air flowing into the exhaust passage 31; a second heat exchanger 343 (heat generation section) disposed inside the exhaust passage 31 and heating the air passing through the heat absorption section 341; and a fan 349 that moves the air discharged from the drum 2 to the supply passage 32 after it has passed sequentially through the heat absorption section and the heat generation section.

[0061] 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 moves along the refrigerant pipe 348 through 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.

[0062] like Figure 5As shown, the air inlet 233 provided on the rear cover 23 of the roller can be formed by arranging a plurality of holes around the center of the rear cover 23 (the rotation center of the roller). In this case, the supply flow path 32 can be configured to include: a supply pipe 321, provided on the fixed plate 151 and forming a movement path for air discharged from the second pipe 312; a first flow path forming part 323, which guides the air inside the supply pipe 321 to the air inlet 233; and a second flow path forming part 324.

[0063] The supply pipe 321 can be configured to form a flow path (air movement path) by bending the fixing plate 151 in a direction away from the rear cover 23. In addition, the supply pipe 321 can be configured to be annular in shape surrounding the drive unit mounting groove 152, and the outlet of the second pipe 312 can be configured to be connected to the circumferential surface of the supply pipe 321.

[0064] The first flow path forming part 323 can be configured to surround the outer circumferential surface of the ring formed by the air inlet 233 (the circumferential surface with the longer diameter of the two circumferential surfaces of the ring), and the second flow path forming part 324 can be configured to surround the inner circumferential surface of the ring formed by the air inlet 233 (the circumferential surface with the shorter diameter of the two circumferential surfaces of the ring).

[0065] 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 The figure shows an example of the case where the flow path forming parts 323 and 324 are fixed to the rear cover 23.

[0066] exist Figure 5 In this case, the free end of the first flow path forming portion 323 is configured as the outer circumferential surface surrounding the flow path (annular flow path) formed by the supply pipe 321, and the free end of the second flow path forming portion 324 is configured as the inner circumferential surface surrounding the flow path formed by the supply pipe 321. The first flow path forming portion 323 and the second flow path forming portion 324 can be formed of rubber or felt, etc.

[0067] The power motor 5 required to generate the rotation of the roller 2 is configured to include: a stator 51 located in the drive unit mounting slot 152 and 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 plate 151, and the stator 51 is fixed to at least one of the fixed plate 151 or the power transmission unit 6.

[0068] If the stator 51 is fixed to the power transmission unit 6, it has the advantage of maintaining the coaxiality of the input shaft 64 and the output shaft 65 provided in the power transmission unit 6 (when the drum rotates, the vibration of the garment handling device can be minimized and the decrease in the durability of the power transmission unit can be minimized).

[0069] To prevent the motor 5 located in the drive unit mounting slot 512 from being exposed to the outside (preventing the motor from being exposed to the external environment, thereby improving the motor's durability and preventing safety accidents), a cover plate 19 for preventing the motor 5 from being exposed to the outside can also be provided on the fixing plate 151. Furthermore, the cover plate 19 can be configured to also prevent 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.

[0070] The stator 51 is configured to include: a ring-shaped core 511 having a through hole (core through hole) at the center; a plurality of support bars 513 that radiate outward from the outer circumferential surface of the core 511; an insulator 512 that insulates the core and the support bars; and a coil 514 configured to surround the support bars 513.

[0071] The rotor 52 may be configured to include: a disc-shaped rotor body 521; a rotor circumferential surface 522 extending from the edge of the rotor body 521 toward the fixing plate 151 and forming a space to accommodate the stator 51; and a plurality of permanent magnets 523 fixed to the rotor circumferential surface 522 in such a way that the N pole and the S pole are exposed alternately.

[0072] Figure 6 This is a diagram showing an example of a power transmission unit 6 that connects the rotor 52 and the rear cover 23 of the drum.

[0073] The power transmission unit 6 is configured to include: an outer cover H, fixed to the fixing plate 151; an input shaft 64, rotatably fixed to the bottom surface (facing the rotor) of the outer cover H; an output shaft 65, rotatably fixed to the upper surface (facing the fixing plate) of the outer cover H; and a gear unit G, disposed inside the outer cover and transmitting the rotational motion of the input shaft 64 to the output shaft 65.

[0074] The input shaft 64 can be formed by a shaft with one end fixed to the rotor 52 and the other end located inside the outer cover H, and the output shaft 65 can be formed by a shaft with one end fixed to the rear cover 23 and the other end located inside the outer cover H. The gear unit G is configured to connect one end of the input shaft 64 located inside the outer cover H and one end of the output shaft 65 located inside the outer cover H.

[0075] Preferably, the outer cover H is fixed to the fixing plate 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 minimize the transfer of heat from inside the box (heat released from the roller or drying section) to the interior of the outer cover H, thereby improving the durability of the power transmission unit 6.

[0076] The input shaft 64 can be coupled to the rotor body 521 via the shaft fixing part 54. The shaft fixing part 54 can be configured to include a shaft fixing hole 541 for fixing one end of the input shaft 64.

[0077] The output shaft 65 is inserted into the through hole 153 of the fixing plate and connected to the rear cover 23. A shaft fastening part 25 for fixing the output shaft 65 can be provided on the rear cover 23. 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.

[0078] To minimize deformation of the fixing plate 151, the outer cover H can be fixed to the fixing plate 151 by means of the transfer bracket 61 and the outer cover fastening part 612.

[0079] like Figure 5 As shown, a through hole 611 for the output shaft 65 to pass through can be provided in the conveyor bracket 61, and the outer cover fastening part 612 can be configured as a bolt connecting the outer cover H and the conveyor bracket 61. The conveyor bracket 61 can also be formed of the same material as the fixing plate 151, or it can be formed of a material with higher strength than the fixing plate 151.

[0080] like Figure 6 As shown, the outer cover H can be configured to include: an outer cover body 62, which is configured to be a hollow cylindrical shape and has an opening on the side facing the fixed body 151; and an outer cover 63, which is fixed to the outer cover body 62 and closes the opening.

[0081] The outer cover body 62 can be configured to form a receiving space 621 for mounting the gear unit G. The receiving space 621 can be formed by an outer cover base 62a that fixes the input shaft 64 and an outer cover circumferential surface 62b that extends from the edge of the outer cover base 62a toward the outer cover cover 63.

[0082] like Figure 7 As shown, an input shaft support portion 625 extending from the outer cover base 62a toward the rotor 52 can be provided on the outer cover body 62. The input shaft support portion 625 can be configured as a tube surrounding the input shaft through hole 626 that passes through the outer cover body 62.

[0083] The input shaft 64, inserted into the input shaft through hole 626, is rotatably fixed to the input shaft support 625 by input shaft bearings 628 and 629. The input shaft bearings may be configured to 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 and located between the first input shaft bearing 628 and the rotor 52.

[0084] The outer cover 63 can be configured to be any shape that can be opened and closed and is located at the opening of the outer cover body 62. Figure 7 The figure shows an example of the case where the outer cover 63 is configured as a disc-shaped cover body 631. The outer cover 63 can be configured to be fixed to the outer cover body 62 by a cover fixing plate 623 provided on the circumferential surface 62b of the outer cover.

[0085] The outer cover 63 may be configured to include: an output shaft through hole 632, configured to penetrate the cover body 631; and a tubular output shaft support portion 635, extending from the cover body 631 toward the fixing plate 151 and surrounding the output shaft through hole 632.

[0086] Output shaft bearings 638 and 639 can be provided in the output shaft support 635 to rotatably fix the output shaft 65 to the output shaft through hole 632.

[0087] The output shaft bearing may be configured to 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 632.

[0088] The outer cover 63 is provided with a mounting part 637 for fixing the stator 51. The mounting part 637 can be set in multiples according to the circumferential surface of the cover body 631, and the stator 51 can be fixed to the outer cover 637 by bolts connecting the insulator 512 and the mounting part 637.

[0089] As described above, the outer casing H is fixed to the fixing plate 151 by the outer casing fastening part 612, the stator 51 is fixed to the outer casing H by the mounting part 637, and the rotor 52 is fixed to the outer casing H by the input shaft 64. Since the stator 51 and rotor 52 are fixed to the outer casing H (the stator and rotor vibrate together with the outer casing), the decrease in coaxiality of the input shaft 64 and the output shaft 65 can be minimized.

[0090] The gear unit G may be configured to include: a gear ring 66, fixed to the outer casing circumferential surface 62b 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 cage 67, located inside the receiving space 621 and fixing the other end of the output shaft 65; and a driven gear 68, rotatably fixed to the cage 67 and connecting the driving gear 69 and the gear ring 66.

[0091] The ring gear 66 may be configured to include: a gear body 661, fixed to the outer cover circumferential surface 62b; a gear body through hole 663, configured to penetrate the gear body; and gear teeth 665, disposed along the inner circumferential surface of the gear body.

[0092] The retainer 67 may be configured to include: a first base 671, located inside the gear body through hole 663 and fixing one end of the output shaft 65; a second base 672, located inside the gear body through hole 663 and having a base through hole 673 in the center; and a connecting shaft 675, connecting the first base and the second base and forming 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 depends on whether the retainer 67 rotates.

[0093] The driven gear 68 can be formed by a plurality of gears rotatably fixed to the connecting shaft 675. The attached figure is an example of the driven gear being formed by a first driven gear 681, a second driven gear 682, and a third driven gear 683.

[0094] 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 driven gears and mesh with the gear teeth of the driven gears 681, 682, and 683.

[0095] The operation of the power transmission unit 6 described above will now be explained. The input shaft 64 rotates when the rotor 52 rotates. If the drive gear 69 rotates via the input shaft 64, the driven gears 681, 682, and 683 meshing with the drive gear 69 also rotate. Since the driven gears 681, 682, and 683 are in a state of meshing with the gear ring 66 fixed to the outer casing body 62, 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 also rotates.

[0096] As described above, in order to disperse the stress acting on the center of the rear cover 23 when the output shaft 65 is rotated (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 fastening part 25.

[0097] That is, such as Figure 8 As shown, a rear cover through hole 231 can be provided in the rear cover 23, and the shaft fastening part 25 is fixed to the rear cover 23 and configured to close the rear cover through hole 231.

[0098] The shaft fastening part 25 may be configured to include: a fastening body 251 (first fastening body) fixed to the rear cover 23; a connecting body 255 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 255 and located inside the roller 2.

[0099] The fastening tube 257 can be configured as a tube into which one end of the output shaft 65 is inserted. A fixing plate 258 is provided inside the fastening tube 257, which 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 configured to connect with a fastening groove 654 provided on the output shaft 65.

[0100] On the other hand, in order to prevent the fastening tube 257 from being exposed inside the drum (in order to prevent a reduction in the durability of the output shaft), a fastening cover 27 can be provided on the rear cover 23.

[0101] The fastening cover 27 can be configured to not only close the rear cover through hole 231, but also prevent the shaft fastening part 25 from being exposed inside the drum in any shape. Figure 8 The figure shows an example of the case where the fastening cover 27 is set in a cone shape.

[0102] The fastening cover 27 is provided with a cover through hole 271 that communicates with the fixing plate through hole 259 and the fastening groove 654. Therefore, if the roller fastening part 275 is inserted into the cover through hole 271 and the fixing plate through hole 259 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.

[0103] If the output shaft 65 of the above structure is combined with the shaft fastening part 25, the operator needs to adjust the position of the roller 2 so that the output shaft 65 is inserted into the fastening tube 257. However, since the diameter of the fastening tube 257 is small, it takes a long time to insert the output shaft 65 into the fastening tube 257.

[0104] 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, if the roller fastening part 275 is engaged with the fastening groove 654, the roller 2 needs to be placed on the output shaft 65. However, if the fixing plate through hole 259 and the fastening groove 654 are not aligned, the assembly time will be increased when fastening the roller fastening part 275.

[0105] Furthermore, if the roller 2 continues to be placed 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 is placed on the output shaft 65, the external force caused by the load of the roller 2 will be transmitted to the output shaft 65 through the fastening tube 257, and the external force transmitted to the output shaft 65 will be transmitted to the gear unit G, including the output shaft bearings 638 and 639.

[0106] To address the aforementioned problems that occur during the assembly of the roller and output shaft, the shaft fastener 25 and the output shaft 65 can be configured as follows: Figures 9 to 10 The structure.

[0107] Figure 9 The shaft fastening part 25 is characterized in that it can minimize the magnitude of the external force input to the output shaft 65, thereby preventing the reduction of the durability of the power transmission part 6, and the output shaft 65 and the shaft fastening part 25 are connected by a nut 256, thereby shortening the assembly time.

[0108] In this embodiment, the shaft fastening part 25 can be configured to 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 is provided with a fastening through hole 253 for the output shaft 65 to be inserted.

[0109] like Figure 10 As shown, the output shaft 65 is configured to include: a fastening shaft 651, located inside the outer cover H and fixed to the retainer 67; and a fixing shaft 652, extending from the fastening shaft 651 and inserted into the fastening through hole 253.

[0110] A thread 653 is provided on the circumferential surface of the fixed shaft 652. Therefore, the nut 256 engages with one end of the output shaft through the fastening hole 253 and fixes the output shaft 65 and the shaft fastening part 25.

[0111] The assembly of the roller 2 and the output shaft 65 is performed through the following process: fixing the fixing plate 151 on which the power transmission part 6 is installed to the base plate 17; inserting the output shaft 65 into the fastening part through hole 253; fixing the position of the front cover 22 by fixing the support plate 121 to the base plate 17; and connecting the output shaft 65 and the shaft fastening part 25 by the nut 256.

[0112] Before fixing the support plate 121 to the base plate 17, the output shaft 65 remains inserted into the fastening through hole 253. However, this embodiment can maintain the tilt angle of the roller at a greater angle than the embodiment with the fastening tube 257. That is, in Figure 8 In some embodiments, the front cover 22 of the roller cannot be positioned on the upper surface of the exhaust flow path 31 or the bottom plate 17 due to the fastening tube 257. Instead, the embodiments can maintain the front cover 22 positioned on the upper surface of the exhaust flow path 31 or the bottom plate 17. Therefore, Figure 10 The garment handling device with the shaft fastening part 25 shown in the figure can minimize the reduction in the durability of the power transmission part 6.

[0113] On the other hand, the diameter of the connecting body 255 in this embodiment is set to gradually decrease from the first fastening body 251 toward the second fastening body 252. If the shape of the connecting body 255 is set as described above, the fixing shaft 652 can be guided along the surface of the connecting body 255 to the fastening through hole 253. Therefore, this embodiment can shorten the time required to insert the fixing shaft 652 into the fastening through hole 253.

[0114] To securely connect the shaft fastening part 25 and the output shaft 65, fastening part serrations can also be provided on the shaft fastening part 25 and output shaft serrations can be provided on the output shaft 65.

[0115] like Figure 11 As shown, the fastening part sawtooth 254 can be configured as a protrusion protruding 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 657 can be configured as a groove provided on the circumferential surface of the fastening shaft 651 and engaging with the fastening part sawtooth 254.

[0116] To facilitate the engagement of the fastening sawtooth 254 and the output shaft sawtooth 657, a connection can be provided on the output shaft 65 to the fastening shaft 651 and the fixing shaft 652, and to guide the fastening sawtooth 254 to the inclined surface of the output shaft sawtooth 657.

[0117] That is, the diameter of the fastening shaft 651 can be set to be the same as the diameter of the through hole 253 of the fastening part, the diameter of the fixing shaft 652 can be set to be smaller than the diameter of the fastening shaft 651, and the inclined surface can be set to connect the circumferential surface of the fixing shaft 652 and the circumferential surface of the fastening shaft 651.

[0118] To prevent the shaft fastening part 25 from being exposed inside the roller 2, this embodiment may also provide a fastening part cover 27. The fastening part cover 27 may be configured in any shape that can close the rear cover through hole 231 and prevent the shaft fastening part 25 from being exposed.

[0119] like Figure 10 As shown, the fastening cover 27 can be configured to be fixed to the output shaft 65 by bolts 273 inserted into the cover through hole 271 and fixed to the fastening groove 654 of the fixed shaft 652.

[0120] The garment handling apparatus 100 with the above-described structure has the possibility that air supplied to the drum 3 through the drying section 3 may be discharged to the outside of the drum through the drum inlet 221. To minimize the above-described disadvantages, a sealing section 7 that minimizes air leakage through the drum inlet 221 may also be provided in the garment handling apparatus 100.

[0121] like Figure 12 As shown, the sealing part 7 can be disposed on the support plate 121.

[0122] An annular mounting groove 129 surrounding the roller connecting body 123 can be provided on the support plate 121, and the sealing part 7 is disposed in the mounting groove 129. That is, the sealing part 7 can be formed by an annular sealing body 71 fixed to the mounting groove 129 and in contact with the edge of the roller inlet 221.

[0123] The sealing body 71 can be formed of felt (felt, compressed fibers, etc.). This is to seal the roller inlet 221 while minimizing the friction between the roller and the sealing body 71.

[0124] On the other hand, in order to reduce 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 is configured as a ring. In this case, the sealing body 71 needs to be fixed to the damper 73.

[0125] In the garment handling apparatus 100 with the above-described structure, the roller inlet 221 can vibrate radially along the through hole 122 of the support plate when the roller 2 rotates. In order to limit the vibration range of the roller inlet 221 in the radial direction of the through hole of the support plate, a displacement limiting part can also be provided in the garment handling apparatus 100.

[0126] like Figure 13 As shown, the displacement limiting part 13 can be formed by a protrusion 131 protruding from the roller connecting body 123 toward the roller input port 221. Although not shown, the displacement limiting part 13 can also be provided on the front cover 22. That is, the displacement limiting part can also be formed by a protrusion protruding from the roller input port 221 toward the roller connecting body 123.

[0127] The displacement limiting part 13 can be configured as a plurality of parts. That is, the displacement limiting part 13 can be formed by a plurality of limiting parts 13a, 13b, 13c that are centered on the through hole 122 of the support plate and spaced apart from each other at the same angle.

[0128] Although not shown in the figure, the displacement limiting part may be formed by a first limiting part and a second limiting part that are 180 degrees apart from each other with the through hole 122 of the support plate as the center, or it may be formed by a first limiting part, a second limiting part and a third limiting part that are 120 degrees apart from each other with the through hole 122 of the support plate as the center.

[0129] In either case, preferably, any one of the plurality of limiting parts 13a, 13b, and 13c is positioned to contact the uppermost end of the roller inlet 221. When the output shaft 65 is positioned parallel to the base plate 17, since the front cover will sag towards the base plate 17 due to its own weight, the displacement of the roller inlet caused by the roller sagging can be minimized when any one of the plurality of limiting parts is configured as described above.

[0130] When the displacement limiting part 13 is formed by a protrusion 131 provided on the support plate 121, preferably, the material of the protrusion 131 is set to be the same as the material of the support plate 121. This is to ensure ease of manufacturing.

[0131] 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 hardness lower than that of the front cover 22.

[0132] Figure 14 The figure shows the displacement limiting part 14 formed by a ring-shaped felt fixed to the roller connecting body 123. That is, the displacement limiting part 14 of this embodiment is characterized in that 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.

[0133] The displacement limiting part 14 can also be formed by bending the lower end of the sealing body 71, or by having additional felt separate from the sealing body 71 located at the lower end of the sealing body 71.

[0134] The above-described garment processing device can be implemented in various forms, therefore the scope of protection 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, and a rear cover through hole. The roller body provides space for storing clothes. The front cover forms the front of the roller body and is provided with a roller inlet that connects the inside of the roller body to the outside. The rear cover forms the rear of the roller body, and the rear cover through hole is configured to penetrate the rear cover. A fixing plate is positioned at a location spaced apart from the rear cover; The power transmission unit has an outer cover, an input shaft, an output shaft, and a gear unit. The outer cover is fixed to the fixing plate. One end of the input shaft is located outside the outer cover and the other end is located inside the outer cover. One end of the output shaft passes through the fixing plate and is fixed to the rear cover, while the other end is located inside the outer cover. The gear unit is located inside the outer cover and transmits the rotational motion of the input shaft to the output shaft. A motor having a stator fixed to the fixed plate or the outer casing and forming a rotating magnetic field, and a rotor fixed to one end of the input shaft and rotating through the rotating magnetic field; A support plate is positioned at a location spaced apart from the front cover; The support plate has a through hole, which is configured to penetrate the support plate. The roller connecting body protrudes from the support plate toward the front cover and inserts into the roller inlet, and is configured to surround the through hole of the support plate; and A displacement limiting part is provided on the roller connecting body and limits the displacement of the roller inlet in the radial direction of the through hole in the support plate.

2. The garment processing device according to claim 1, characterized in that, The displacement limiting part is configured as a protrusion that extends from the roller connecting body toward the roller inlet.

3. The garment processing device according to claim 2, characterized in that, The displacement limiting part includes a first limiting part and a second limiting part that are 180 degrees apart from each other with the through hole of the support plate as the center.

4. The garment processing device according to claim 2, characterized in that, The displacement limiting part includes a first limiting part, a second limiting part, and a third limiting part that are 120 degrees apart from each other with the through hole of the support plate as the center.

5. The garment processing apparatus according to claim 4, characterized in that, Any one of the first limiting part, the second limiting part, and the third limiting part is configured to contact the uppermost end of the roller inlet.

6. The garment processing apparatus according to claim 5, characterized in that, The first limiting part, the second limiting part, and the third limiting part are formed of the same material as the support plate.

7. The garment processing apparatus according to claim 6, characterized in that, The front cover is made of metal, and the displacement limiting part is made of a material with a lower hardness than the front cover.

8. The garment processing apparatus according to claim 1, characterized in that, The displacement limiting part is configured as a protrusion that extends from the roller inlet toward the roller connecting body.

9. The garment processing apparatus according to claim 1, characterized in that, Also includes: A mounting groove, disposed on the support plate and formed by an annular groove surrounding the roller connecting body; and A sealing part is provided in the mounting groove and contacts the edge of the roller inlet.

10. The garment processing apparatus according to claim 9, characterized in that, The sealing part includes: a damper fixed to the mounting groove; and an annular sealing body fixed to the damper and in contact with the edge of the roller inlet.

11. The garment processing apparatus according to claim 10, characterized in that, The displacement limiting part is formed of felt fixed to the roller connecting body and located between the circumferential surface of the roller connecting body and the roller inlet.

12. The garment processing apparatus according to claim 11, characterized in that, The sealing body and the displacement limiting part are made of the same material.

Images