Shaft coupling support member, rotary drive device, and dryer

Abstract

To provide a shaft coupling support member and the like capable of achieving thinning by suppressing reduction in strength and a local load.SOLUTION: The shaft coupling support member (20) includes a first fixing portion (21) capable of fixing the rotating shaft (15), a plurality of support portions (22) extending from the first fixing portion in a radial direction of the rotating shaft, and a second fixing portion (23) provided on an outer side of each of the plurality of support portions in the radial direction and capable of being fixed to the rotating body. The support portion includes a support plate (221) having a main surface facing the rotating body, and a reinforcing rib (222) protruding from the support plate in an axial direction of the rotating shaft and connecting the first fixing portion and the second fixing portion.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a shaft coupling support member, a rotary drive device, and a dryer. [Background technology]

[0002] In recent years, attention has been focused on biomimetics, a technology that mimics and utilizes the diverse functions of living organisms. Nature Technology (registered trademark) is known as an example of a manufacturing company that uses biomimetic technology in electrical products and other products.

[0003] Conventionally, drum-type washer-dryers have been known in which a rotating drum housed inside a washing tub is rotated relative to the washing tub, and air is sent into the rotating drum to wash and dry the clothes inside the rotating drum. The rotating drum is placed horizontally inside the washing tub with the bottom of the rotating drum facing the back of the drum-type washer-dryer. A rotating shaft 2 is fixedly connected to the rear bottom of the rotating drum via a shaft connecting support member, and the drive unit for the rotating shaft is provided outside the washing tub (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-113399 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, there has been a demand for larger rotating drums relative to the washing tub, thereby increasing the capacity of washing machines without changing the size of the washing machine itself. One solution to this problem is to thin the shaft connection support member. The thickness of the shaft connection support member is the dimension of the shaft connection support member in the axial direction of the rotating shaft. By reducing the thickness of the shaft connection support member, it becomes possible to increase the size of the rotating drum, thereby increasing the capacity.

[0006] However, simply making the shaft connection support member thinner reduces its strength. Also, in a rotating body that rotates while containing contents, such as a rotating drum, uneven weight balance occurs due to the contents being unevenly distributed. Therefore, if the rotating drum is enlarged, the uneven weight balance becomes more pronounced, and a heavy load may be placed on a part of the shaft connection support member.

[0007] An object of the present disclosure is to provide a shaft connection support member and the like that can suppress a decrease in strength and localized loads, thereby achieving a thinner structure. [Means for solving the problem]

[0008] In order to solve the above problems, a shaft connecting support member according to one embodiment of the present disclosure comprises a first fixing portion capable of fixing a rotating shaft, a plurality of support portions extending radially from the first fixing portion of the rotating shaft, and a second fixing portion provided radially outside each of the plurality of support portions and capable of fixing to the rotating body, wherein the support portion comprises a support plate having a main surface facing the rotating body, and a reinforcing rib protruding from the support plate in the axial direction of the rotating shaft and connecting the first fixing portion and the second fixing portion.

[0009] In order to solve the above problem, a rotational drive device according to one embodiment of the present disclosure includes a shaft connecting support member according to one embodiment of the present disclosure, a rotating shaft fixed to the first fixed part, a first container which is a hollow rotating body having the second fixed part fixed to its bottom and which is open on the side of the rotating shaft opposite the bottom in the axial direction, and a drive part which drives the rotating shaft to rotate.

[0010] In order to solve the above problem, a dryer according to one embodiment of the present disclosure includes a rotary drive device according to one embodiment of the present disclosure, a second container having an internal space that accommodates the first container, an outlet through which air flows out of the internal space, and an inlet through which air flows into the internal space, an air passage that connects the outlet and the inlet and guides the air that flows out of the outlet to the inlet, a blower that circulates air through the air passage from the outlet toward the inlet, and a heating section that heats the air circulating through the air passage. [Effects of the Invention]

[0011] According to one aspect of the present disclosure, it is possible to provide a shaft connection support member or the like that can suppress a decrease in strength and localized loads, thereby achieving a thinner structure. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic cross-sectional side view of a washer-dryer as an example of a dryer, which includes a rotation drive device having a shaft connection support member according to the present embodiment. [Figure 2] 3 is a perspective view showing a rotary drum as an example of a rotary body and the shaft connection support member in the washer / dryer. FIG. [Figure 3] FIG. 2 is a perspective view of the shaft connection support member with the side attached to the rotating drum facing upward. [Figure 4] FIG. 2 is a perspective view of the shaft connection support member with the side on which the drive motor is disposed facing upward. [Figure 5] 1A is a front view of the shaft connection support member, with the side attached to the rotary drum facing forward, FIG. 1B is a side view, and FIG. 1C is a top view. [Figure 6] FIG. 6 is a cross-sectional view taken along the line AA in FIG. 5. [Figure 7] FIG. 6 is a cross-sectional view taken along the line BB in FIG. 5. [Figure 8] FIG. 6 is an enlarged view of region D in FIG. 5. [Figure 9] 10 is a diagram showing a main part of a shaft connection support member provided with reinforcing ribs including a re-branched rib; FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] [Embodiment] An embodiment of the present disclosure will be described in detail below.

[0014] (General configuration of a washer / dryer) Fig. 1 is a schematic cross-sectional side view of a washer-dryer 100 as an example of a dryer, which is equipped with a rotation drive device having a shaft connection support member 20 according to this embodiment. Fig. 2 is a perspective view showing a rotating drum as an example of a rotating body and the shaft connection support member in the washer-dryer 100.

[0015] As shown in FIG. 1, the washer-dryer 100 of this embodiment includes an outer case 1, a washing tub (second container) 2 arranged in the outer case 1, a rotating drum (rotating body, first container) 3 rotatably arranged in the washing tub 2, and a drive motor (drive unit) 4 that drives the rotating drum 3 to rotate around a central axis J.

[0016] Door 5 is provided on outer box 1, and washing tub 2 and rotating drum 3 are open on the door 5 side. By closing door 5, washing tub 2 is kept watertight and airtight.

[0017] Washing tub 2 has an outlet 6 through which air flows out of the interior space that houses rotating drum 3, and an inlet 7 through which air flows into the interior space. Outlet 6 and inlet 7 are connected via air circulation duct 8. Air circulation duct 8 forms a circulation path for circulating air inside washing tub 2. In other words, air circulation duct 8 connects outlet 6 and inlet 7, and forms an air passage that guides air flowing out from outlet 6 to inlet 7.

[0018] Along the way, the air circulation duct 8 is equipped with a filter device 9 that collects lint and other debris, a heat pump unit 10 as an example of a heating device (heating section) that heats the air circulating through the air passage, and a blower (blower section) that circulates air from the outlet 6 toward the inlet 7.

[0019] 2, a shaft connection support member 20 according to this embodiment is attached to the bottom 3B of the rotating drum 3. The shaft connection support member 20 is a member that connects the rotating drum 3 and the rotating shaft 15, and will be described in detail later.

[0020] The rotation shaft 15 fixed to the rotating drum 3 may be the rotation drive shaft of the drive motor 4, or may be a shaft member connected to the rotation drive shaft of the drive motor 4. The rotation shaft 15 fixed to the rotating drum 3 using the shaft connection support member 20 will be simply referred to as the rotation shaft 15 of the rotating drum 3. The rotation shaft 15 of the rotating drum 3 has its center on the central axis J of the rotating drum 3 (see Figure 1).

[0021] The rotating drum 3 is a hollow rotating body that is open on the side opposite to the bottom 3B in the axial direction of the rotating shaft. The shaft connection support member 20, the rotating shaft, the rotating drum 3, and the drive motor 4 constitute a rotation drive device.

[0022] A plurality of through holes 12 are formed on the peripheral surface 3A of the rotating drum 3 to allow water and air to circulate between the rotating drum 3 and the inside of the washing tub 2. In addition, an air inlet hole (container through hole) 13 that communicates with the inlet 7 of the washing tub 2 and introduces air is formed on the bottom 3B of the rotating drum 3. The air inlet hole 13 is a through hole that penetrates the bottom 3B of the rotating drum 3 in the axial direction of the rotation shaft 15.

[0023] In this embodiment, there are provided a plurality of air introduction holes 13. In this embodiment, the air introduction hole 13 is formed in the center of the bottom part 3B of the rotating drum 3, and a fixing part through hole 212 (described later) is provided in the shaft connection support member 20 so as to correspond to the air introduction hole 13.

[0024] As shown in Fig. 1, by driving the blower 11, air is sucked in from the heat pump unit 10 side. Dry, heated air supplied from the heat pump unit 10 via the blower 11 passes through the air circulation duct 8 and, as shown by arrow Y in Fig. 1, is introduced into the rotating drum 3 through the inlet 7, the fixing part through-hole 212, and the air introduction hole 13 (see Fig. 2).

[0025] The heated air introduced into the rotating drum 3 removes moisture from the items M to be dried, such as clothes, contained in the rotating drum 3. The heated air containing moisture escapes from the through-holes 12 in the peripheral surface 3A of the rotating drum 3 into the washing tub 2, passes through the air circulation duct 8 from the outlet 6 of the washing tub 2 as shown by the arrow Z in FIG. 1, enters the filter device 9, and is introduced into the heat pump unit 10 again.

[0026] (Configuration of shaft connection support member) Next, the shaft connection support member 20 attached to the bottom of the rotating drum 3 will be described with reference to Fig. 2 and Figs. 3 to 8. Fig. 3 is a perspective view of the shaft connection support member 20 with the side attached to the rotating drum 3 facing upward. Fig. 4 is a perspective view of the shaft connection support member 20 with the side on which the drive motor 4 is disposed facing upward. Fig. 5(a) is a front view of the shaft connection support member 20 with the side attached to the rotating drum 3 facing forward, Fig. 5(b) is a side view, and Fig. 5(c) is a top view. Fig. 5(b) is a side view as seen from the direction of arrow X1, and Fig. 5(c) is a top view as seen from the direction of arrow X2. Fig. 6 is a cross-sectional view taken along line AA in Fig. 5. Fig. 7 is a cross-sectional view taken along line BB in Fig. 5. Fig. 8 is an enlarged view of region D in Fig. 5.

[0027] As shown in Figures 2 to 7, the shaft connecting support member 20 comprises a first fixing portion 21 to which the rotating shaft 15 can be fixed, a plurality of support portions 22 extending from the first fixing portion 21 in the radial direction of the rotating shaft 15, and second fixing portions 23 provided radially outside each of the plurality of support portions 22 and capable of being fixed to the rotating drum 3.

[0028] The first fixed portion 21 is located in the center (central) part of the shaft connection support member 20. The first fixed portion 21 is disk-shaped and is formed to have a thick wall such that the thickness, which is the dimension in the axial direction of the rotating shaft 15 (see FIG. 2), is greater than that of other parts of the shaft connection support member 20 (see FIG. 6 in particular).

[0029] A shaft hole 211 into which the rotating shaft 15 is fitted is formed in the center of the first fixed part 21 (the same as the center of the shaft connection support member 20). When the rotating shaft 15 is attached to the shaft hole 211, the shaft connection support member 20 rotates integrally with the rotating shaft 15.

[0030] Furthermore, first fixed portion 21 is formed with fixed portion through-hole 212, which is a through-hole that passes through first fixed portion 21 in the axial direction of rotary shaft 15. Fixed portion through-hole 212 connects air inlet 13 (see FIG. 2), which is formed in bottom portion 3B of rotary drum 3, with inlet 7 (see FIG. 1) of washing tub 2. Air that flows into washing tub 2 via inlet 7 passes through fixed portion through-hole 212 and air inlet 13 and flows into rotary drum 3.

[0031] In this embodiment, a plurality of fixing portion through holes 212 are formed around the axial hole 211 so as to surround the axial hole 211 .

[0032] 2, it is preferable that the fixing portion through-hole 212 formed in the first fixing portion 21 and the air inlet hole 13 formed in the bottom portion 3B of the rotating drum 3 overlap in the axial direction of the rotating shaft 15. With this configuration, air can be smoothly introduced into the rotating drum 3 from the inlet 7.

[0033] In this embodiment, three support portions 22 are formed in three directions from the outer edge of the first fixed portion. The three support portions 22 have the same shape and are evenly spaced around the shaft hole 211 (see particularly reference numeral 1001 in FIG. 5).

[0034] Furthermore, the support portion 22 is formed so that the first fixed portion 21 side is wider than the second fixed portion 23 side when viewed from the axial direction of the rotation shaft 15 (see, in particular, reference numeral 1001 in FIG. 5). The number of support portions 22 may be three or more, or may be two.

[0035] Each of the multiple support portions 22 includes a support plate 221 having a main surface 221A facing the rotating drum 3, and a reinforcing rib 222 that protrudes from the support plate 221 in the axial direction of the rotating shaft 15 and connects the first fixed portion 21 and the second fixed portion 23.

[0036] Support plate 221 is formed in the shape of a plate that is thinner than first fixed portion 21 and second fixed portion 23. Reinforcing rib 222 is formed in the shape of a vertical wall that has a height that matches the thickness of first fixed portion 21 and second fixed portion 23. Reinforcing rib 222 connects first fixed portion 21 and second fixed portion 23 in a solid, solid state (see FIG. 7 in particular).

[0037] In addition, in this embodiment, the support plate 221 is located on the side of the shaft connection support member 20 where the drive motor 4 is arranged, and the reinforcing rib 222 is provided so as to rise toward the rotating drum 3 from the main surface 221A of the support plate 221 facing the rotating drum 3 (see particularly Figures 3, 5 and 6).

[0038] Furthermore, the support plate 221 is formed in a curved shape such that the radially outer side of the rotation shaft 15 approaches the rotary drum 3 in a side view perpendicular to the rotation shaft 15 (see FIG. 5 in particular).

[0039] The second fixed portion 23 is formed to be thicker than the support plate 221, although not as thick as the first fixed portion 21 (see FIG. 6 in particular). When viewed in the axial direction of the rotating shaft 15, the second fixed portion 23 is formed so that its circumferential dimension about the rotating shaft 15 is larger than that of the support portion 22. The second fixed portion 23 is fixed to the peripheral portion of the bottom 3B of the rotating drum 3 using screws or the like (see FIG. 2 in particular). With the second fixed portion 23 fixed, the rotating drum 3 rotates integrally with the shaft connection support member 20.

[0040] In the shaft connection support member 20 configured as described above, the reinforcing ribs 222 ensure the strength of the shaft connection support member 20. Furthermore, when the rotating drum 3 rotates, the force applied to each second fixing portion 23 can be transmitted to the first fixing portion 21 via the reinforcing ribs 222 in the support portion 22. This makes it possible to equalize the load on the rotating shaft 15 fitted in the shaft hole 211. Furthermore, because the support portion 22 is configured to include a plate-shaped support plate 221 and a vertical-wall-shaped reinforcing rib 222, the weight of the support portion 22 can be reduced, and therefore the weight of the shaft connection support member 20 can be reduced.

[0041] In this embodiment, two reinforcing ribs 222 are formed spaced apart along the outer edge of the support plate 221. By providing two reinforcing ribs 222, the strength of the support portion 22 can be ensured more than if there were only one reinforcing rib. Furthermore, since each of the two reinforcing ribs 222 connects the first fixed portion 21 and the second fixed portion 23, a closed space is formed surrounded by the first fixed portion 21, the second fixed portion 23, and the two reinforcing ribs 222, thereby increasing the strength. This makes it possible to improve the strength of the shaft connection support member 20 using less material.

[0042] <Branched rib> Furthermore, in this embodiment, as shown in Fig. 8, the reinforcing rib 222 in the support part 22 includes a plurality of branched ribs 222A branching from the first branched part P1. In the example of Fig. 8, a configuration is presented in which the reinforcing rib 222 is branched into two and includes two branched ribs 222A, but the reinforcing rib 222 may be branched into three or more branches.

[0043] By branching the reinforcing rib 222 to include multiple branch ribs 222A, the area of ​​the region where no ribs exist on the main surface 221A of the support plate 221 is reduced. The branch ribs 222A also form a closed space that improves strength. This allows the strength of the support part 22 to be increased compared to a configuration in which the reinforcing rib 222 does not include the branch ribs 222A.

[0044] 8, each of the branch ribs 222A is connected to the first fixing portion 21. Specifically, the tips of the two branch ribs 222A extending from the first branch portion P1 are connected to the first fixing portion 21.

[0045] In this way, since each branch rib 222A is connected to the first fixed portion 21, the number of portions where the reinforcing rib 222 is connected to the first fixed portion 21, i.e., the number of portions where the branch rib 222A is connected to the first fixed portion 21, can be made greater than the number of portions where the second fixed portion 23 is connected to the reinforcing rib 222.

[0046] Because each branch rib 222A is connected to the first fixed portion 21, the force acting on the second fixed portion 23 during rotation of the rotating drum 3 can be transmitted to the first fixed portion 21 via each branch rib 222A. This makes it possible to more uniformly distribute the load on the rotating shaft 15 fitted in the shaft hole 211.

[0047] Furthermore, because each branch rib 222A is connected to the first fixed portion 21, each branch rib 222A receives the force from the first fixed portion 21 in a dispersed state and transmits it to the second fixed portion 23. This makes it possible to further distribute and equalize the load transmitted to the first fixed portion 21, and also to increase the strength of the support portion 22.

[0048] Furthermore, the branch rib 222A may be further branched. Fig. 9 is a diagram schematically showing a main part of the shaft connection support member 20 provided with the reinforcing rib 222 including the re-branch rib 222B. As shown in Fig. 9, the branch rib 222A may be configured to include a re-branch rib 222B branched again at the second branch portion P2, and the re-branch rib 222B may be connected to the first fixed portion 21.

[0049] By further branching the branch rib 222A to include multiple sub-branch ribs 222B, the area of ​​the region on the main surface 221A of the support plate 221 where no ribs exist can be further reduced. Furthermore, by further branching the branch rib 222A to include multiple sub-branch ribs 222B, the number of portions where the reinforcing rib 222 and the first fixing portion 21 are connected, i.e., the number of portions where the branch rib 222A and the first fixing portion 21 are connected, can be increased. This can further distribute and equalize the load transmitted to the first fixing portion 21, and can also increase the strength of the support portion 22. In the example of FIG. 9, the branch rib 222A is branched into two, but it may be branched into three or more.

[0050] 9, each of the re-branch ribs 222B may be connected to the first fixed portion 21. With this configuration, when the rotating drum 3 rotates, the force acting on the second fixed portion 23 can be transmitted to the first fixed portion 21 in a more dispersed state via each of the re-branch ribs 222B. This makes it possible to further uniformize the load on the rotating shaft 15 fitted in the shaft hole 211.

[0051] Furthermore, with this configuration, each re-branch rib 222B can receive force from the first fixed portion 21 in a more finely dispersed state and transmit it to the second fixed portion 23. This makes it possible to further distribute and equalize the load transmitted to the first fixed portion 21, and also to increase the strength of the support portion 22.

[0052] 9, the second branch portion P2 may be configured to be located more inward than the first branch portion P1 in the radial direction of the rotating shaft 15. With this configuration, the load applied to the first fixed portion 21 can be dispersed and equalized.

[0053] <Other Ribs> 3 and 8, the shaft connection support member 20 is further provided with outer edge ribs 223 that extend along the outer edges 22A of the support portions 22 that are adjacent in the rotation direction of the rotating shaft 15. Similar to the reinforcing ribs 222, the outer edge ribs 223 are formed to protrude from the support plate 221 in the axial direction of the rotating shaft 15, and have an arc shape when viewed from the axial direction of the rotating shaft 15. The outer edge ribs 223 also connect the first fixed portion 21 and the second fixed portion 23.

[0054] In this embodiment, a portion of the reinforcing rib 222 constitutes a portion of the outer edge rib 223. Specifically, as shown in Fig. 8, the reinforcing rib 222 branches at a third branch portion P3 located further outward in the radial direction of the rotation shaft 15 than the first branch portion P1, and the branched portion located on the outer edge 22A side of the support portion 22 constitutes the outer edge rib 223. The branched portion located on the outer edge 22A side passes beside the outer edge 21A of the first fixing portion 21 and is connected to a branched portion located on the outer edge 22A side of the adjacent support portion 22.

[0055] A recess 24 is formed on the outer edge 21A side of the first fixed part 21, recessed from the surface on the side where the drive motor 4 is arranged, and the bottom wall of this recess 24 is convex towards the rotating drum 3. As shown in Fig. 6, the support plate 221 is connected to the surface of the bottom wall of this recess 24 on the rotating drum 3 side, and outer edge ribs 223 are formed on the surface of this bottom wall on the rotating drum 3 side and on the main surface 221A of the support plate 221.

[0056] By providing such outer edge ribs 223, the strength of the support portion 22 can be further increased, and therefore the strength of the shaft connection support member 20 can be increased.

[0057] <Positional relationship between air inlet holes and reinforcing ribs> 8, in this embodiment, the multiple fixed portion through holes 212 provided in the first fixed portion 21 are provided so that a portion 213 between two fixed portion through holes 212 adjacent to each other in the rotation direction of the rotating shaft 15 overlaps with a line segment L. The line segment L is a line connecting a portion 214 where the reinforcing rib 222 and the first fixed portion 21 are connected to the shaft hole 211 (the center of the shaft hole 211).

[0058] Because the first fixed portion 21 is a portion to which force from the rotating shaft 15 is applied, providing the fixed portion through hole 212 without any ingenuity reduces the strength of the first fixed portion 21, and therefore reduces the strength of the shaft connection support member. For example, in a configuration in which the fixed portion through hole 212 is located between the shaft hole 211 and the portion 214 where the reinforcing rib 222 and the first fixed portion 21 are connected, the force applied to the first fixed portion 21 is transmitted to the reinforcing rib 222 by going around the fixed portion through hole 212. This reduces the strength of the first fixed portion 21.

[0059] In contrast, with the above configuration, the force acting on the first fixed portion 21 is transmitted to the reinforcing rib 222 from the solid portion 213 between two adjacent fixed portion through holes 212. Therefore, even with a configuration in which the first fixed portion 21 is provided with the fixed portion through holes 212, a decrease in the strength of the first fixed portion 21 is suppressed, and the strength of the shaft connection support member 20 can be suppressed.

[0060] 8, in the present embodiment, at a portion 214 where two branch ribs 222A branching from one reinforcing rib 222 are connected to the first fixed portion 21, the opening area of ​​the fixed portion through hole 212 is increased so as to straddle the two portions 214. This makes it possible to increase the opening area of ​​the fixed portion through hole 212 and improve the air volume while maintaining the strength of the shaft connection support member (first fixed portion 21) 20.

[0061] 〔summary〕 According to a first aspect of the present disclosure, the shaft connecting support member comprises a first fixing portion capable of fixing a rotating shaft, a plurality of support portions extending radially from the first fixing portion of the rotating shaft, and a second fixing portion provided radially outside each of the plurality of support portions and capable of fixing to a rotating body, wherein the support portion comprises a support plate having a main surface facing the rotating body, and a reinforcing rib protruding from the support plate in the axial direction of the rotating shaft and connecting the first fixing portion and the second fixing portion.

[0062] A shaft connection support member according to a second aspect of the present disclosure is the shaft connection support member of the first aspect, wherein the reinforcing rib may include a plurality of branch ribs branching from the first branch portion.

[0063] A shaft connection support member according to a third aspect of the present disclosure is the shaft connection support member of the second aspect, wherein each of the branch ribs may be connected to the first fixing portion.

[0064] The shaft connecting support member according to aspect 4 of the present disclosure is the same as that of aspect 2 or 3 above, wherein the branched rib includes a sub-branched rib that further branches off from the second branched portion, and the sub-branched rib may be connected to the first fixed portion.

[0065] A shaft connection support member according to a fifth aspect of the present disclosure is related to the fourth aspect, and the second branched portion may be located radially inward of the first branched portion.

[0066] A rotational drive device according to aspect 6 of the present disclosure comprises a shaft connecting support member according to any one of aspects 1 to 5 above, a rotating shaft fixed to the first fixed part, a first container which is a hollow rotating body having the second fixed part fixed to its bottom and which is open on the side of the rotating shaft opposite the bottom in the axial direction, and a drive part which drives the rotating shaft to rotate.

[0067] A dryer according to aspect 7 of the present disclosure includes a rotary drive device according to aspect 6 above, a second container having an internal space for accommodating the first container, an outlet through which air flows out of the internal space, and an inlet through which air flows into the internal space, an air passage connecting the outlet and the inlet and directing the air flowing out of the outlet to the inlet, a blower that circulates air through the air passage from the outlet toward the inlet, and a heating unit that heats the air flowing through the air passage.

[0068] A dryer according to aspect 8 of the present disclosure may be such that, in aspect 7 above, the bottom of the first container is provided with a container through-hole that penetrates the bottom in the axial direction of the rotating shaft, and the first fixing part is provided with a fixing part through-hole that penetrates the first fixing part in the axial direction of the rotating shaft.

[0069] A ninth aspect of the present disclosure relates to the dryer of the eighth aspect, wherein the container through-hole and the fixing portion through-hole may overlap in the axial direction of the rotation shaft.

[0070] A dryer according to aspect 10 of the present disclosure is the dryer of aspect 8 or 9 above, wherein the first fixing portion has an axial hole to which the rotating shaft is fixed, and a plurality of fixing portion through holes are provided around the axial hole, and the portion between two fixing portion through holes adjacent to each other in the rotational direction of the rotating shaft overlaps with a line connecting the portion where the reinforcing rib and the first fixing portion are connected to the axial hole.

[0071] This disclosure includes a technical idea that focuses on the veins that support the large leaves of the giant bass and the strong bending rigidity of bamboo. In other words, this disclosure relates to biomimetics.

[0072] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present disclosure. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment. [Explanation of symbols]

[0073] 2 Washing tub (second container) 3 Rotating drum (rotating body, first container) 3B Bottom 4 Drive motor (drive unit) 6 Outlet 7 Inlet 8 Air circulation duct (air passage) 10 Heat pump unit (heating section) 11 Blower (blower section) 13 Air inlet hole (container through hole) 15 Rotation axis 20 Shaft connection support member 21 1st fixed part 22 Support part 23 Second fixed part 100 Washer / Dryer (Dryer) 211 Shaft hole 212 Fixed part through hole 221 Support plate 221A main surface 222 Reinforcing rib 222A Branch Rib 222B Rebranched Rib P1 First branch P2 Second branch

Claims

1. a first fixing portion capable of fixing the rotation shaft; a plurality of support portions extending from the first fixed portion in a radial direction of the rotation shaft; a second fixing portion provided on the radially outer side of each of the plurality of support portions and fixable to a rotating body; The support portion is a support plate having a main surface facing the rotor; a reinforcing rib that protrudes from the support plate in the axial direction of the rotating shaft and connects the first fixed portion and the second fixed portion;

2. The shaft connection support member according to claim 1 , wherein the reinforcing rib includes a plurality of branched ribs branching from a first branch portion.

3. The shaft connection support member according to claim 2 , wherein each of the branch ribs is connected to the first fixing portion.

4. The branched rib includes a second branched rib further branched from the second branched portion, The shaft connection support member according to claim 3 , wherein the second branch rib is connected to the first fixing portion.

5. The shaft connection support member according to claim 4 , wherein the second branch portion is located radially inward of the first branch portion.

6. A shaft connection support member according to any one of claims 1 to 5; The rotation shaft fixed to the first fixed portion; a first container which is the rotating body and has a bottom to which the second fixing portion is fixed and which is hollow and has an opening on the side opposite to the bottom in the axial direction of the rotation shaft; a drive unit that rotates the rotation shaft; A rotary drive device comprising:

7. The rotary drive device according to claim 6 ; a second container having an internal space for accommodating the first container, an outlet through which air in the internal space flows out, and an inlet through which air flows into the internal space; an air passage that connects the outlet and the inlet and guides the air flowing out from the outlet to the inlet; a blower that circulates air through the air passage from the outlet toward the inlet; a heating unit that heats the air flowing through the air passage; A dryer equipped with:

8. a container through-hole that penetrates the bottom of the first container in the axial direction of the rotation shaft; The dryer according to claim 7 , wherein the first fixing portion is provided with a fixing portion through-hole that passes through the first fixing portion in the axial direction of the rotary shaft.

9. The dryer according to claim 8 , wherein the container through-hole and the fixing portion through-hole overlap in the axial direction of the rotation shaft.

10. The first fixing portion has a shaft hole to which the rotating shaft is fixed, and a plurality of fixing portion through holes are provided around the shaft hole, The dryer according to claim 9, wherein the portion between two adjacent fixing portion through holes in the rotation direction of the rotating shaft overlaps with a line connecting the portion where the reinforcing rib and the first fixing portion are connected to the axial hole.

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