Toilet device

Abstract

Provided is a toilet device having an electric opening and closing unit with reduced sliding resistance. A toilet device is provided with an electric opening and closing unit having a transmission mechanism that transmits the rotation of a motor to a toilet seat or a toilet cover, the transmission mechanism having an internal gear, a first transmission portion that transmits the rotational force of the motor, and a second transmission portion that transmits the rotational force of the first transmission portion, the first transmission portion having a first planetary gear that is transmitted the rotational force of the motor and a first planetary support, and the second transmission portion having a second planetary gear that is transmitted the rotational force of the first planetary support, a second planetary support, and a shaft portion that revolves around the axis of rotation of the second planetary gear and revolves around the axis of rotation of the second planetary gear, the first planetary support having a convex portion that extends along the orbit of revolution of the shaft portion, the shaft portion being in contact with the convex portion, and a gap being formed between the shaft portion and a portion of the first planetary support other than the convex portion.

Description

Technical Field

[0001] The present invention generally relates to toilet devices. Background Technology

[0002] There exists a toilet device that includes an electric opening and closing unit for electrically opening and closing at least one of the toilet seat and toilet lid. The electric opening and closing unit opens and closes the toilet seat or toilet lid using the rotational force of an electric motor. Furthermore, in the electric opening and closing unit, a planetary gear mechanism, comprising a support member (sun gear), planetary gears, and an internal gear, is sometimes used as the transmission mechanism for transmitting the rotational force of the electric motor.

[0003] Patent Document 1: Japanese Patent No. 4574168

[0004] In transmission mechanisms, sliding resistance is sometimes generated along with the rotation of support components and planetary gears. Therefore, the transmission efficiency of the motor's rotational force may be reduced. Summary of the Invention

[0005] This invention is based on the understanding of this issue, and its purpose is to provide an electric opening and closing unit that can reduce sliding resistance.

[0006] The first invention is a toilet device, characterized by having an electrically operated opening and closing unit capable of opening and closing at least one of a toilet seat or a toilet lid. The electrically operated opening and closing unit includes a motor and a transmission mechanism that transmits the rotational force of the motor to either the toilet seat or the toilet lid. The transmission mechanism includes: a cylindrical internal gear with teeth on its inner circumferential surface; a first transmission part housed in the internal gear and transmitting the rotational force of the motor; and a second transmission part housed in the internal gear and transmitting the rotational force of the first transmission part. The first transmission part includes: a first planetary gear, which receives the rotational force of the motor and rotates on its own axis while revolving around a rotation axis about the inner circumferential surface of the internal gear; The first planetary support member, which rotates about the rotation axis in conjunction with the rotation and revolution of the first planetary gear, and the second transmission part includes: a second planetary gear, which is transmitted by the rotational force of the first planetary support member, and rotates about the rotation axis along the inner circumferential surface of the internal gear while rotating; a second planetary support member, which rotates about the rotation axis in conjunction with the rotation and revolution of the second planetary gear; and a shaft portion, which includes the rotation axis of the second planetary gear and revolves about the rotation axis, the first planetary support member having a protrusion extending along the revolution track of the shaft portion, the shaft portion contacting the protrusion, and forming a gap between the shaft portion and a portion of the first planetary support member other than the protrusion.

[0007] According to this toilet device, by providing a protrusion on the first planetary support member, the contact area of ​​the shaft portions of the first and second planetary supports can be reduced. This reduces the sliding resistance of the first and second planetary supports. Consequently, rotational force can be transmitted efficiently.

[0008] The second invention is a toilet device, characterized in that, in the first invention, the protrusion includes a convex curved surface that contacts the shaft portion.

[0009] According to this toilet device, the convex surface of the protrusion can contact the shaft portion of the second planetary support. This further reduces the contact area between the protrusion on the first planetary support and the shaft portion of the second planetary support, thereby further reducing sliding resistance.

[0010] The third invention is a toilet device, characterized in that, in the first or second invention, the shaft portion includes a convex curved surface that contacts the protrusion.

[0011] According to this toilet device, the convex curved surface of the shaft can contact the convex part of the first planetary support. This further reduces the contact area between the convex part of the first planetary support and the shaft of the second planetary support, thereby further reducing sliding resistance.

[0012] The effects of the invention

[0013] According to the present invention, a toilet device having an electrically operated opening and closing unit capable of reducing sliding resistance is provided. Attached Figure Description

[0014] Figure 1 This is a perspective view of the toilet apparatus according to an illustrative embodiment.

[0015] Figure 2 This is a top view of a portion of the toilet apparatus according to an illustrative embodiment.

[0016] Figure 3 This is a cross-sectional view of the electrically operated opening and closing unit according to an illustrative embodiment.

[0017] Figure 4 This is a cross-sectional view of the transmission mechanism of the electrically operated opening and closing unit according to an illustrative embodiment.

[0018] Figure 5 This is an exploded view of the transmission mechanism of the electrically operated opening and closing unit according to the illustrative embodiment.

[0019] Figure 6 (a)~ Figure 6 (c) is a perspective view and a top view of the planetary support member of the electrically operated opening and closing unit according to the illustrative embodiment.

[0020] Figure 7 This is a cross-sectional view of the planetary support member of the electrically operated opening and closing unit according to an illustrative embodiment.

[0021] Figure 8 (a) and Figure 8 (b) is a top view and a cross-sectional view of the planetary gear of the electric opening and closing unit according to the illustrative embodiment.

[0022] Figure 9 (a)~ Figure 9 (c) is a perspective view and a top view of the planetary support member of the electrically operated opening and closing unit according to the illustrative embodiment.

[0023] Figure 10 This is a cross-sectional view of the planetary support member of the electrically operated opening and closing unit according to an illustrative embodiment.

[0024] Figure 11 (a) and Figure 11 (b) is a top view and a cross-sectional view of the planetary gear of the electric opening and closing unit according to the illustrative embodiment.

[0025] Figure 12 (a)~ Figure 12 (c) is a perspective view and a top view of the planetary support member of the electrically operated opening and closing unit according to the illustrative embodiment.

[0026] Figure 13 This is a cross-sectional view of the planetary support member of the electrically operated opening and closing unit according to an illustrative embodiment.

[0027] Figure 14 (a) and Figure 14 (b) is a top view and a cross-sectional view of the planetary gear of the electric opening and closing unit according to the illustrative embodiment.

[0028] Figure 15 This is a cross-sectional view showing a modified example of the planetary support member of the electrically operated opening and closing unit according to the embodiment.

[0029] Figure 16 This is a cross-sectional view showing a modified example of the planetary support member of the electrically operated opening and closing unit according to the embodiment.

[0030] Figure 17 This is a cross-sectional view showing a modified example of the planetary support member of the electrically operated opening and closing unit according to the embodiment. Detailed Implementation

[0031] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, in the drawings, the same structural elements are labeled with the same reference numerals, and detailed descriptions are appropriately omitted.

[0032] Figure 1This is a perspective view of the toilet apparatus according to an illustrative embodiment.

[0033] like Figure 1 As shown, the toilet device 100 (toilet device) according to the embodiment has a housing 10, a toilet seat 30 for the user to sit on, and a toilet lid 50 covering the toilet seat 30. The toilet seat 30 and the toilet lid 50 are each rotatably supported relative to the housing 10. In other words, the toilet seat 30 and the toilet lid 50 are each axially supported so as to be freely openable and closable. Figure 1 The toilet seat 30 is in the closed state (lowered state), and the toilet lid 50 is in the open state (raised state). When the toilet lid 50 is closed, it covers the upper surface of the outer casing 10 and the toilet seat 30 from above.

[0034] The outer casing 10 contains a body washing function that washes specific areas of the user's body (such as the buttocks) when seated on the toilet seat 30. For example, a washing nozzle 70 and a control circuit that controls the operation of the washing nozzle 70 are installed inside the outer casing 10. When the user sits on the toilet seat 30, the washing nozzle 70 extends forward from inside the outer casing 10 and sprays washing water towards the user's area. Furthermore, the outer casing 10 is appropriately equipped with various mechanisms such as a "warm air drying function," a "deodorizing unit," and an "indoor heating unit" that blow warm air towards the user's buttocks and other areas while seated on the toilet seat 30 to dry them.

[0035] like Figure 1 As shown, the outer casing 10 has an upper surface 15. A pair of stepped portions (first stepped portion 19a and second stepped portion 19b) arranged in the left-right direction are provided in front of the upper surface 15.

[0036] The toilet seat 50 has a pair of toilet seat folding portions (first toilet seat folding portion 61 and second toilet seat folding portion 62) arranged in a left-right direction. The toilet seat folding portions are located on the inside of the toilet seat. The first toilet seat folding portion 61 is disposed on the first step portion 19a. The second toilet seat folding portion 62 is disposed on the second step portion 19b. The toilet seat 50 is rotatably supported by the first toilet seat folding portion 61 and the second toilet seat folding portion 62. The toilet seat 50 is provided as needed and can be omitted.

[0037] The toilet seat 30 has a pair of toilet seat folding portions (first toilet seat folding portion 31 and second toilet seat folding portion 32) arranged in a left-right direction. The first toilet seat folding portion 31 is disposed on the first step portion 19a. The second toilet seat folding portion 32 is disposed on the second step portion 19b. The toilet seat 30 is rotatably supported by the first toilet seat folding portion 31 and the second toilet seat folding portion 32.

[0038] Figure 2This is a top view of a portion of the toilet apparatus according to an illustrative embodiment.

[0039] Figure 2 The illustration shows the outer casing 10 viewed from above with the toilet seat 30 closed. The toilet lid 50 has been omitted from the illustration for ease of observation.

[0040] like Figure 2 As shown, the toilet unit 100 includes an electrically operated opening and closing unit 80 (electric opening and closing device). The electrically operated opening and closing unit 80 is capable of opening and closing at least one of the toilet seat 30 and the toilet lid 50. In this example, the electrically operated opening and closing unit 80 includes a toilet seat opening and closing unit 80a capable of opening and closing the toilet seat 30 and a toilet lid opening and closing unit 80b capable of opening and closing the toilet lid 50. At least a portion of each electrically operated opening and closing unit 80 is disposed inside the housing 10. The electrically operated opening and closing unit 80 includes a drive unit such as an electric motor, and the toilet seat 30 or the toilet lid 50 is opened and closed by the driving force of the drive unit. The electrically operated opening and closing unit 80 only needs to include at least one of the toilet seat opening and closing unit 80a and the toilet lid opening and closing unit 80b. That is, one of the toilet seat opening and closing unit 80a and the toilet lid opening and closing unit 80b can be omitted.

[0041] For example, the output shaft 85 of the toilet seat opening and closing unit 80a protrudes from the side of the housing 10 in the first step portion 19a and is directly or indirectly connected to the toilet seat 30. In this example, the output shaft 85 of the toilet seat opening and closing unit 80a engages with the first toilet seat folding portion 31. The output shaft 85 of the toilet seat opening and closing unit 80a rotates due to the torque of the motor, thereby rotating the first toilet seat folding portion 31 and causing the toilet seat 30 to rotate. Alternatively, the toilet seat opening and closing unit 80a may also be provided on the side of the second toilet seat folding portion 32.

[0042] Similarly, the output shaft 85 of the toilet seat opening and closing unit 80b protrudes from the side of the housing 10 in the first step portion 19a and is directly or indirectly connected to the toilet seat 50. In this example, the output shaft 85 of the toilet seat opening and closing unit 80b engages with the first toilet seat folding portion 61. The output shaft 85 of the toilet seat opening and closing unit 80b rotates due to the torque of the motor, thereby rotating the first toilet seat folding portion 61 and causing the toilet seat 50 to rotate. Alternatively, the toilet seat opening and closing unit 80b may also be located on the side of the second toilet seat folding portion 62.

[0043] Figure 3 This is a cross-sectional view of the electrically operated opening and closing unit according to an illustrative embodiment.

[0044] like Figure 3 As shown, the electric opening and closing unit 80 has a housing 81, a motor 82, a transmission mechanism 83, a shaft 84, an output shaft 85, and a spring 86.

[0045] In this example, the housing 81 has a first housing component 81a and a second housing component 81b. The first housing component 81a and the second housing component 81b are combined to form a cylindrical housing 81. As described above, the housing 81 can be composed of multiple components or formed from a single component. The housing 81 is fixed to the outer casing 10 by any fixing unit such as screws or bolts.

[0046] The electric motor 82 is housed in the housing 81. More specifically, at least a portion of the electric motor 82 is housed in the first housing component 81a, and the rotation shaft 82a of the electric motor 82 protrudes toward the second housing component 81b.

[0047] The transmission mechanism 83 is housed in the second housing component 81b of the housing 81. The transmission mechanism 83 is connected to the rotation shaft 82a of the motor 82, and transmits the rotation of the motor 82 directly or indirectly to the output shaft 85. In this example, the rotation of the motor 82 is transmitted to the output shaft 85 via the shaft portion 84.

[0048] The transmission mechanism 83 is, for example, a reduction mechanism, which in this case is a planetary gear mechanism. More specifically, regarding Figure 4 and Figure 5 It will be described later.

[0049] The shaft portion 84 is housed in the second housing component 81b of the housing 81 and is directly or indirectly connected to the planetary support member 43 of the transmission mechanism 83. The shaft portion 84 rotates along with the planetary support member 43. A torque limiter may be provided in the shaft portion 84, for example.

[0050] At least a portion of the output shaft 85 protrudes from the housing 81. In this example, one end of the output shaft 85 protrudes from the second housing member 81b, and the other end of the output shaft 85 is received in the second housing member 81b and connected to the shaft portion 84. The output shaft 85 is rotatable relative to the housing 81 as the rotation shaft 82a of the motor 82 rotates. Thus, the output shaft 85 outputs the rotational force of the motor 82 transmitted via the transmission mechanism 83 to the toilet seat 30 or toilet lid 50. That is, the electric opening and closing unit 80 opens and closes the toilet seat 30 or toilet lid 50 by transmitting the rotation of the motor 82 to the output shaft 85.

[0051] Spring 86 is housed in the second housing component 81b of housing 81. Spring 86 is, for example, a torsion coil spring. One end of spring 86 is connected to transmission mechanism 83, and the other end of spring 86 is connected to output shaft 85. Spring 86 applies force to output shaft 85 in the direction of rotation of output shaft 85. That is, the elastic force of spring 86 is transmitted to toilet seat 30 or toilet lid 50 via output shaft 85. For example, spring 86 applies force to toilet seat 30 or toilet lid 50 in the opening direction. By providing spring 86, the opening and closing of toilet seat 30 and toilet lid 50 can be assisted.

[0052] A shaft portion 84 is disposed inside the spring 86. For example, the rotating shaft 82a of the motor 82, each planetary support (each sun gear) of the transmission mechanism 83, the shaft portion 84, the output shaft 85, and each central shaft (rotation shaft) of the spring 86 are arranged in a manner consistent with each other. Furthermore, the consistency of the central shafts (rotation shafts) does not only mean that the central shafts are strictly located in a straight line, but also includes cases where there is a slight offset within a range due to manufacturing fluctuations, design clearances, etc. The spring 86 is configured, for example, not to contact the outer component (housing 81) of the spring 86 or the inner component (shaft portion 84) of the spring 86.

[0053] Figure 4 This is a cross-sectional view of the transmission mechanism of the electrically operated opening and closing unit according to an illustrative embodiment.

[0054] Figure 5 This is an exploded view of the transmission mechanism of the electrically operated opening and closing unit according to the illustrative embodiment.

[0055] like Figure 4 and Figure 5 As shown, the transmission mechanism 83 includes a sun gear 20, a transmission section T1 (e.g., a first transmission section), a transmission section T2 (e.g., a second transmission section), a transmission section T3 (e.g., a third transmission section), and an internal gear 24 (housing). The sun gear 20 and the transmission sections T1, T2, and T3 are housed within the internal gear 24. Furthermore, as... Figure 4 As shown, a plate-shaped housing component 25 is provided.

[0056] The transmission unit T1 has a planetary gear 21 (e.g., a first planetary gear) and a planetary support member 41 (e.g., a first planetary support member) that engages with the planetary gear 21. The transmission unit T1 transmits the rotational force of the electric motor 82 to the transmission unit T2.

[0057] The transmission unit T2 has a planetary gear 22 (e.g., a second planetary gear) and a planetary support member 42 (e.g., a second planetary support member) that engages with the planetary gear 22. The transmission unit T2 transmits the rotational force of the transmission unit T1 to the transmission unit T3.

[0058] The transmission unit T3 has a planetary gear 23 (e.g., a third planetary gear) and a planetary support member 43 (e.g., a third planetary support member) that engages with the planetary gear 23. The transmission unit T3 transmits the rotational force of the transmission unit T2 to the output shaft 85 via the shaft portion 84.

[0059] Furthermore, the transmission of rotation (force) is not limited to the case where the force is transmitted directly through direct contact between components, but can also include the case where the force is transmitted indirectly through other components arranged between the components.

[0060] The internal gear 24 is cylindrical, with teeth 24g on its inner circumferential surface 24f that engage with planetary gears 21, 22, and 23. In this example, the internal gear 24 is such that it is relatively fixed relative to the housing 81 and will not rotate even if the output shaft 85 is rotated by the rotating shaft 82a of the motor 82. The sun gear 20, planetary gear 21, planetary support member 41, planetary gear 22, planetary support member 42, planetary gear 23, and planetary support member 43 are housed within the internal gear 24.

[0061] The sun gear 20 engages with the rotating shaft 82a of the motor 82. This transmits the rotational force of the motor 82 to the sun gear 20. The sun gear 20 rotates about its own axis Ax, which is aligned with the rotating shaft of the motor 82.

[0062] In this example, three planetary gears 21 are arranged around the sun gear 20. The planetary gears 21 engage with the sun gear 20. Therefore, the rotational force of the sun gear 20, i.e., the rotational force of the motor, is transmitted to the planetary gears 21. In addition, as mentioned above, the planetary gears 21 engage with the teeth 24g of the internal gear 24. Thus, the planetary gears 21 rotate on their own axis and revolve around the rotation axis Ax along the inner circumferential surface 24f of the internal gear 24, accompanying the rotation of the motor 82.

[0063] The planetary support 41 serves as the rotation axis for the planetary gear 21 and as the sun gear for the subsequent planetary gear 22. Specifically, the planetary support 41 has a shaft portion 41a and a sun gear portion 41s (see reference). Figure 4 The shaft portion 41a is supported in such a way that the planetary gear 21 passes through it. The planetary gear 21 is rotatable relative to the shaft portion 41a. That is, the shaft portion 41a includes the rotation axis x1 of the planetary gear 21, and the planetary gear 21 is able to rotate about the shaft portion 41a (rotation axis x1). The direction of the rotation axis x1 (the direction in which the shaft portion 41a extends) is substantially parallel to the rotation axis Ax. In this example, three shaft portions 41a are provided, and the planetary gear 21 is mounted on each shaft portion 41a. The rotational force of the planetary gear 21 is transmitted to the shaft portion 41a. That is, the shaft portion 41a revolves about the rotation axis Ax along with the rotation and revolution of the planetary gear 21. As a result, the planetary support member 41 rotates about the rotation axis Ax. That is, the sun gear portion 41s rotates about the rotation axis Ax.

[0064] In this example, three planetary gears 22 are arranged around the sun gear section 41s. The planetary gears 22 engage with the sun gear section 41s. Therefore, the rotational force of the planetary support member 41 is transmitted to the planetary gears 22. In addition, as mentioned above, the planetary gears 22 engage with the teeth 24g of the internal gear 24. Thus, the planetary gears 22 rotate on their own axis and revolve around the inner circumferential surface 24f of the internal gear 24 as the planetary support member 41 rotates.

[0065] The planetary support 42 serves as the rotation axis for the planetary gear 22 and as the sun gear for the subsequent planetary gear 23. Specifically, the planetary support 42 has a shaft portion 42a and a sun gear portion 42s (see reference). Figure 4 The shaft portion 42a is supported in such a way that the planetary gear 22 passes through it. The planetary gear 22 is rotatable relative to the shaft portion 42a. That is, the shaft portion 42a includes the rotation axis x2 of the planetary gear 22, and the planetary gear 22 is able to rotate about the shaft portion 42a (rotation axis x2). The direction of the rotation axis x2 (the direction in which the shaft portion 42a extends) is substantially parallel to the rotation axis Ax. In this example, three shaft portions 42a are provided, and the planetary gear 22 is mounted on each shaft portion 42a. The rotational force of the planetary gear 22 is transmitted to the shaft portion 42a. That is, the shaft portion 42a revolves about the rotation axis Ax along with the rotation and revolution of the planetary gear 22. As a result, the planetary support member 42 rotates about the rotation axis Ax. That is, the sun gear portion 42s rotates about the rotation axis Ax.

[0066] In this example, three planetary gears 23 are arranged around the sun gear section 42s. The planetary gears 23 engage with the sun gear section 42s. Therefore, the rotational force of the planetary support member 42 is transmitted to the planetary gears 23. In addition, as mentioned above, the planetary gears 23 engage with the teeth 24g of the internal gear 24. Thus, the planetary gears 23 rotate on their own axis and revolve around the inner circumferential surface 24f of the internal gear 24 as the planetary support member 42 rotates.

[0067] The planetary support 43 serves as the rotation axis of the planetary gear 23 and as a gear that engages with the shaft portion 84 of the subsequent stage. Specifically, the planetary support 43 has a shaft portion 43a and a gear portion 43s (see reference). Figure 4The shaft portion 43a is supported in such a way that the planetary gear 23 passes through it. The planetary gear 23 is rotatable relative to the shaft portion 43a. That is, the shaft portion 43a includes the rotation axis x3 of the planetary gear 23, and the planetary gear 23 is able to rotate about the shaft portion 43a (rotation axis x3). The rotation axis x3 (the direction in which the shaft portion 43a extends) is substantially parallel to the rotation axis Ax. In this example, three shaft portions 43a are provided, and the planetary gear 23 is mounted on each shaft portion 43a. The rotational force of the planetary gear 23 is transmitted to the shaft portion 43a. That is, the shaft portion 43a revolves about the rotation axis Ax along with the rotation and revolution of the planetary gear 23. As a result, the planetary support member 43 rotates about the rotation axis Ax. That is, the gear portion 43s rotates about the rotation axis Ax.

[0068] The gear part 43s engages with the shaft part 84. As a result, the rotational force of the planetary support 43 is transmitted to the shaft part 84.

[0069] Next, the details of each component of the transmission units T1, T2, and T3 will be explained.

[0070] (Regarding Transmission Department T1)

[0071] Figure 6 (a)~ Figure 6 (c) is a perspective view and a top view of the planetary support member of the electrically operated opening and closing unit according to the illustrative embodiment.

[0072] Figure 7 This is a cross-sectional view of the planetary support member of the electrically operated opening and closing unit according to an illustrative embodiment.

[0073] Figure 6 (a) is an oblique view of the planetary support 41. Figure 6 (b) is a top view of the planetary support 41 viewed from the output side. Figure 6 (c) is a top view of the planetary support 41 as seen from the input side. Furthermore, the output side, when viewed from the transmission mechanism 83, is in the direction of the output shaft 85, and the input side, when viewed from the transmission mechanism 83, is in the direction of the motor 82. Figure 7 express Figure 6 The A-A line profile shown in (b)

[0074] The planetary support 41 has a base 41b. The base 41b is, for example, circular. The base 41b has an input side 41p and an output side 41q opposite to the input side 41p. The input side 41p and the output side 41q extend along a plane perpendicular to the rotation axis Ax and are circular when viewed from above. However, the base 41b does not necessarily have to be circular when viewed from above.

[0075] Shaft portion 41a extends from the input side surface 41p of base portion 41b toward the input side. Shaft portion 41a is cylindrical. Multiple shaft portions 41a have the same shape. For example... Figure 6 As shown in (c), the plurality of shaft portions 41a are arranged isotropically (i.e., in units of approximately 120°) when viewed from the rotation axis Ax. For example, as Figure 7 As shown, the central axis of the shaft 41a corresponds to the rotation axis x1 of the planetary gear 21.

[0076] The sun gear section 41s extends from the output side 41q of the base 41b toward the output side. The sun gear section 41s is provided with a plurality of teeth 41g protruding in a direction perpendicular to the rotation axis Ax. Additionally, for example... Figure 7 As shown, a through hole p1 is provided in the planetary support member 41. The through hole p1 extends in a direction parallel to the rotation axis Ax and passes through the center of the base 41b and the sun gear part 41s. A circular protrusion 41r surrounding the through hole p1 is provided at the output side end of the sun gear part 41s.

[0077] Additionally, the planetary support 41 has a protrusion 41t that protrudes from the output side 41q toward the output side. The protrusion 41t extends along the orbital path of the shaft portion 42a of the planetary support 42. That is, the protrusion 41t is a circular rib that is equal in circumference to the shaft portion 42a revolving about the rotation axis Ax. For example, in the direction extending from the rotation axis Ax, at least a portion of the protrusion 41t overlaps with at least a portion of the orbital path of the shaft portion 42a of the planetary support 42. The center position of the circular protrusion 41t coincides with the position of the rotation axis Ax. The protrusion 41t is, for example, a bearing for the shaft portion 42a.

[0078] Figure 8 (a) and Figure 8 (b) is a top view and a cross-sectional view of the planetary gear of the electric opening and closing unit according to the illustrative embodiment.

[0079] Figure 8 (a) is a top view of planetary gear 21 viewed from the output side. Figure 8 (b) indicates Figure 8 The B-B line profile shown in (a)

[0080] The planetary gear 21, when viewed from above, is roughly circular in shape, with multiple teeth 21g protruding in a direction perpendicular to the rotation axis x1 on its outer periphery. Additionally, a through hole p2 is provided in the planetary gear 21. The through hole p2 extends in a direction parallel to the rotation axis x1, passing through the center of the planetary gear 21. The shaft portion 41a is inserted into the through hole p2.

[0081] Furthermore, a circular protrusion 21r is provided on the output side 21q of the planetary gear 21. The protrusion 21r surrounds the through hole p2. By providing the protrusion 21r, the contact area between the planetary gear 21 and the planetary support member 41 can be reduced. Similarly, a circular protrusion 21u is provided on the input side 21p of the planetary gear 21. The protrusion 21u surrounds the through hole p2. By providing the protrusion 21u, the contact area between the planetary gear 21 and the housing member 25 can be reduced.

[0082] Furthermore, in this example, as described above, the shaft portion 41a and the sun gear portion 41s are part of the planetary support member 41. For example, the shaft portion 41a and the sun gear portion 41s are integrally formed with the base portion 41b of the planetary support member 41. However, this is not a limitation; the shaft portion 41a and the sun gear portion 41s can also be separate from the base portion 41b and appropriately combined. The shaft portion 41a is connected to the planetary gear 21, and the planetary gear 21 can rotate about the shaft portion 41a as its axis of rotation. Thus, the rotational force of the planetary gear 21 can be transmitted to the sun gear portion 41s. For example, the shaft portion 41a can be integrally fixed to the planetary gear 21 and rotatably connected relative to the base portion 41b.

[0083] (Regarding Transmission Department T2)

[0084] Figure 9 (a)~ Figure 9 (c) is a perspective view and a top view of the planetary support member of the electrically operated opening and closing unit according to the illustrative embodiment.

[0085] Figure 10 This is a cross-sectional view of the planetary support member of the electrically operated opening and closing unit according to an illustrative embodiment.

[0086] Figure 9 (a) is an oblique view of the planetary support 42. Figure 9 (b) is a top view of the planetary support 42 from the output side. Figure 9 (c) is a top view of the planetary support 42 as seen from the input side. Figure 10 express Figure 9 The C-C line profile shown in (b)

[0087] The planetary support 42 has a base 42b. The base 42b is, for example, circular. The base 42b has an input side 42p and an output side 42q opposite to the input side 42p. The input side 42p and the output side 42q extend along a plane perpendicular to the rotation axis Ax and are circular when viewed from above. However, the base 42b does not necessarily have to be circular when viewed from above.

[0088] Shaft portion 42a extends from the input side surface 42p of base portion 42b toward the input side. Shaft portion 42a is cylindrical. Multiple shaft portions 42a have the same shape. For example... Figure 9 As shown in (c), the plurality of shaft portions 42a are arranged isotropically (i.e., in units of approximately 120°) when viewed from the rotation axis Ax. For example, as Figure 10 As shown, the central axis of the shaft 42a corresponds to the rotation axis x2 of the planetary gear 22.

[0089] The sun gear section 42s extends from the output side 42q of the base 42b toward the output side. Multiple teeth 42g protruding in a direction perpendicular to the rotation axis Ax are provided in the sun gear section 42s. Additionally, for example... Figure 10 As shown, a through hole p3 is provided in the planetary support member 42. The through hole p3 extends in a direction parallel to the rotation axis Ax and passes through the center of the base 42b and the sun gear part 42s. A circular protrusion 42r surrounding the through hole p3 is provided at the output side end of the sun gear part 42s.

[0090] Additionally, the planetary support 42 has a protrusion 42t that protrudes from the output side 42q toward the output side. The protrusion 42t extends along the orbital path of the shaft portion 43a of the planetary support 43. That is, the protrusion 42t is a circular rib with the same circumference as the shaft portion 43a revolves around the rotation axis Ax. For example, in the direction extending from the rotation axis Ax, at least a portion of the protrusion 42t overlaps with at least a portion of the orbital path of the shaft portion 43a of the planetary support 43. The center position of the circular protrusion 42t coincides with the position of the rotation axis Ax. The protrusion 42t is, for example, a bearing for the shaft portion 43a.

[0091] Figure 11 (a) and Figure 11 (b) is a top view and a cross-sectional view of the planetary gear of the electric opening and closing unit according to the illustrative embodiment.

[0092] Figure 11 (a) is a top view of planetary gear 22 viewed from the output side. Figure 11 (b) indicates Figure 11 The D-D line profile shown in (a) is shown.

[0093] The planetary gear 22, when viewed from above, is roughly circular in shape, with multiple teeth 22g protruding from its outer periphery in a direction perpendicular to the rotation axis x2. Additionally, a through hole p4 is provided in the planetary gear 22. The through hole p4 extends in a direction parallel to the rotation axis x2, passing through the center of the planetary gear 22. A shaft portion 42a is inserted into the through hole p4.

[0094] Furthermore, a circular protrusion 22r is provided on the output side 22q of the planetary gear 22. The protrusion 22r surrounds the through hole p4. By providing the protrusion 22r, the contact area between the planetary gear 22 and the planetary support member 42 can be reduced. Similarly, a circular protrusion 22u is provided on the input side 22p of the planetary gear 22. The protrusion 22u surrounds the through hole p4. By providing the protrusion 22u, the contact area between the planetary gear 22 and the planetary support member 41 can be reduced.

[0095] Furthermore, in this example, as described above, the shaft portion 42a and the sun gear portion 42s are part of the planetary support member 42. For example, the shaft portion 42a and the sun gear portion 42s are integrally formed with the base portion 42b of the planetary support member 42. However, this is not a limitation; the shaft portion 42a and the sun gear portion 42s can also be separate from the base portion 42b and appropriately combined. The shaft portion 42a is connected to the planetary gear 22, and the planetary gear 22 can rotate about the shaft portion 42a as its axis of rotation. Thus, the rotational force of the planetary gear 22 can be transmitted to the sun gear portion 42s. For example, the shaft portion 42a can be integrally fixed to the planetary gear 22 and rotatably connected relative to the base portion 42b.

[0096] (Regarding Transmission Department T3)

[0097] Figure 12 (a)~ Figure 12 (c) is a perspective view and a top view of the planetary support member of the electrically operated opening and closing unit according to the illustrative embodiment.

[0098] Figure 13 This is a cross-sectional view of the planetary support member of the electrically operated opening and closing unit according to an illustrative embodiment.

[0099] Figure 12 (a) is an oblique view of planetary support 43. Figure 12 (b) is a top view of the planetary support 43 from the output side. Figure 12 (c) is a top view of the planetary support 43 viewed from the input side. Figure 13 express Figure 12 The E-E line profile shown in (b)

[0100] The planetary support 43 has a base 43b. The base 43b is, for example, circular. The base 43b has an input side 43p and an output side 43q opposite to the input side 43p. The input side 43p and the output side 43q extend along a plane perpendicular to the rotation axis Ax and are circular when viewed from above. However, the base 43b does not necessarily have to be circular when viewed from above.

[0101] Shaft portion 43a extends from the input side surface 43p of base portion 43b toward the input side. Shaft portion 43a is cylindrical. Multiple shaft portions 43a have the same shape. For example... Figure 12 As shown in (c), the plurality of shaft portions 43a are arranged isotropically (i.e., in units of approximately 120°) when viewed from the rotation axis Ax. For example, as Figure 13 As shown, the central axis of the shaft 43a corresponds to the rotation axis x3 of the planetary gear 23.

[0102] The gear section 43s extends from the output side 43q of the base 43b toward the output side. Multiple teeth 43g are provided in the gear section 43s, protruding in a direction perpendicular to the rotation axis Ax. Additionally, for example... Figure 13 As shown, a through hole p5 is provided in the planetary support member 43. The through hole p5 extends in a direction parallel to the rotation axis Ax and passes through the center of the base 43b and the gear part 43s.

[0103] Additionally, the planetary support member 43 has a protrusion 43t that protrudes from the output side 43q toward the output side. The protrusion 43t is a circular rib that extends in a manner that surrounds the gear part 43s. For example, the center position of the circular protrusion 43t coincides with the position of the rotation axis Ax.

[0104] Figure 14 (a) and Figure 14 (b) is a top view and a cross-sectional view of the planetary gear of the electric opening and closing unit according to the illustrative embodiment.

[0105] Figure 14 (a) is a top view of planetary gear 22 viewed from the output side. Figure 14 (b) indicates Figure 14 The F-F line profile shown in (a)

[0106] The planetary gear 23, when viewed from above, is roughly circular in shape, with multiple teeth 23g protruding from its outer periphery in a direction perpendicular to the rotation axis x3. Furthermore, a through hole p6 is provided in the planetary gear 23. The through hole p6 extends in a direction parallel to the rotation axis x3, passing through the center of the planetary gear 23. The shaft portion 43a is inserted into the through hole p6.

[0107] Furthermore, a circular protrusion 23r is provided on the output side 23q of the planetary gear 23. The protrusion 23r surrounds the through hole p6. By providing the protrusion 23r, the contact area between the planetary gear 23 and the planetary support member 43 can be reduced. Similarly, a circular protrusion 23u is provided on the input side 23p of the planetary gear 23. The protrusion 23u surrounds the through hole p6. By providing the protrusion 23u, the contact area between the planetary gear 23 and the planetary support member 42 can be reduced.

[0108] Furthermore, in this example, as described above, the shaft portion 43a and the gear portion 43s are part of the planetary support member 43. For example, the shaft portion 43a and the gear portion 43s are integrally formed with the base portion 43b of the planetary support member 43. However, this is not a limitation; the shaft portion 43a and the gear portion 43s can also be separate from the base portion 43b and appropriately combined. The shaft portion 43a is connected to the planetary gear 23, and the planetary gear 23 can rotate about the shaft portion 43a as its axis of rotation. Thus, the rotational force of the planetary gear 23 can be transmitted to the gear portion 43s. For example, the shaft portion 43a can be integrally fixed to the planetary gear 23 and rotatably connected relative to the base portion 43b.

[0109] In one embodiment, the shaft portion of the second transmission unit contacts the protrusion of the first planetary support member, and is located away from the first planetary support member except for the protrusion. A gap is formed between the shaft portion of the second transmission unit and a portion of the first planetary support member excluding the protrusion. Specifically, as... Figure 4 As shown, the input-side end of the shaft portion 42a contacts the output-side end of the protrusion 41t. When the shaft portion 42a revolves around the rotation axis Ax, it slides on the circular protrusion 41t. At this time, the shaft portion 42a moves away from the planetary support member 41 outside the protrusion 41t. That is, the shaft portion 42a moves away from the output side 41q of the planetary support member 41. A gap G1 is provided between the input-side end of the shaft portion 42a and the output side 41q. This reduces the contact area between the shaft portion 42a and the planetary support member 41, thereby reducing the sliding resistance between the shaft portion 42a and the planetary support member 41.

[0110] In addition, for example, Figure 4 As shown, the input-side end of the shaft portion 43a contacts the output-side end of the protrusion 42t. When the shaft portion 43a revolves around the rotation axis Ax, it slides on the circular protrusion 42t. At this time, the shaft portion 43a moves away from the planetary support member 42 outside the protrusion 42t. That is, the shaft portion 43a moves away from the output side 42q of the planetary support member 42. A gap G2 is provided between the input-side end of the shaft portion 43a and the output side 42q. This reduces the contact area between the shaft portion 43a and the planetary support member 42, thereby reducing the sliding resistance between the shaft portion 43a and the planetary support member 42.

[0111] As described above, according to the embodiment, a protrusion is provided in the first planetary support member, thereby reducing the contact area of ​​the shaft portions of the first and second planetary supports. This reduces the sliding resistance of the first and second planetary supports. As a result, rotational force can be transmitted efficiently.

[0112] In addition, such as Figure 4As shown, the protrusion 43t of the planetary support 43 contacts the inner surface of the internal gear 24 (the surface opposite to the output side 43q of the planetary support 43). The output side 43q of the planetary support 43 moves away from the internal gear 24. A gap G3 is provided between the output side 43q and the inner surface of the internal gear 24. This reduces the contact area between the internal gear 24 and the planetary support 43, thereby reducing the sliding resistance between them.

[0113] For example, small irregularities (not shown) are sometimes formed on the output side 41q of the planetary support 41. These irregularities are, for example, burrs or shrinkage marks generated during the molding of the planetary support 41. More specifically, they are, for example, gate marks or protruding pin marks from injection molding. If the irregularities described above come into contact with the shaft portion 42a, resistance will be generated, resulting in a decrease in torque. Therefore, it is also conceivable to add a smooth circular plate between the output side 41q and the shaft portion 42a to prevent direct contact between the output side 41q and the shaft portion 42a and suppress resistance. However, in this case, the number of parts increases, and the manufacturing cost may increase. In contrast, according to the embodiment, by providing the protrusion 41t, the shaft portion 42a is moved away from the output side 41q. Therefore, it is possible to suppress the increase in the number of parts and suppress the increase in resistance caused by the irregularities of the output side 41q. For example, Figure 7 The height H1 (length along the direction of the rotation axis Ax) of the convex portion 41t shown is preferably higher than the height of the protrusions (burrs, etc.) on the output side 41q, for example, greater than or equal to 0.1 mm and less than or equal to 1.0 mm, approximately 0.5 mm. The same applies to the convex portions 42t and 43t.

[0114] For example, such as Figure 4 As shown, the width W41t (the length between the inner and outer circumferences in the radial direction) of the protrusion 41t is narrower than the width W42a (diameter) of the shaft portion 42a. By narrowing the width W41t of the protrusion 41t, the contact area between the shaft portion 42a and the planetary support member 41 can be further reduced.

[0115] Similarly, as Figure 4 As shown, the width W42t of the protrusion 42t is narrower than the width W43a of the shaft 43a. By narrowing the width W42t of the protrusion 42t, the contact area between the shaft 43a and the planetary support 42 can be further reduced.

[0116] In addition, Figure 4 In the example, the front end (input-side end) of the shaft portion 42a protrudes towards the input side compared to the planetary gear 22. For example, the front end of the shaft portion 42a is adjacent to the input side surface 21p or the protrusion 21u of the planetary gear 22 (see reference). Figure 8 (b) is located on the input side.

[0117] Similarly, in Figure 4 In the example, the front end (input-side end) of the shaft portion 43a protrudes towards the input side compared to the planetary gear 23. For example, the front end of the shaft portion 43a protrudes towards the input side 22p or the protrusion 22u of the planetary gear 23 (see reference). Figure 11 (b) is located on the input side.

[0118] For example, such as Figure 7 As shown, the protrusion 41t has a surface 41f at its output end. In this example, surface 41f is a plane perpendicular to the rotation axis Ax. The protrusion 41t contacts the shaft portion 42a of the planetary support 42 at surface 41f.

[0119] In addition, for example, Figure 7 As shown, the shaft portion 41a has a surface 41h at its input side end. In this example, surface 41h is a plane perpendicular to the rotation axis Ax. The shaft portion 41a is in contact with the housing component 25 at surface 41h.

[0120] In addition, for example, Figure 10 As shown, the protrusion 42t has a surface 42f at its output end. In this example, surface 42f is a plane perpendicular to the rotation axis Ax. The protrusion 42t contacts the shaft portion 43a of the planetary support 43 at surface 42f.

[0121] In addition, for example, Figure 10 As shown, the shaft portion 42a has a surface 42h at its input-side end. In this example, surface 42h is a plane perpendicular to the rotation axis Ax. The shaft portion 42a contacts the protrusion 41t of the planetary support member 41 at surface 42h.

[0122] In addition, for example, Figure 13 As shown, the protrusion 43t has a surface 43f at its output end. In this example, surface 43f is a plane perpendicular to the rotation axis Ax. The protrusion 43t engages with the internal gear 24 at surface 43f.

[0123] In addition, for example, Figure 13 As shown, the shaft portion 43a has a surface 43h at its input-side end. In this example, surface 43h is a plane perpendicular to the rotation axis Ax. The shaft portion 43a contacts the protrusion 42t of the first planetary support member 42 at surface 43h.

[0124] Figure 15 This is a cross-sectional view showing a modified example of the planetary support member of the electrically operated opening and closing unit according to the embodiment.

[0125] In this example, the surface 41f of the protrusion 41t of the planetary support 41 is a convex curved surface that protrudes towards the output side. This further reduces the contact area between the protrusion 41t and the shaft 42a, thereby further reducing sliding resistance. As described above, the output-side end of the protrusion 41t can be a curved surface, or it can be a plane or an angle as previously shown.

[0126] Furthermore, in this example, the surface 41h of the shaft portion 41a of the planetary support 41 is a convex curved surface protruding towards the input side. This further reduces the contact area between the shaft portion 41a and the housing component 25, thereby further reducing sliding resistance. As described above, the input-side end of the shaft portion 41a can be a curved surface, or it can be a plane or an angle as previously described.

[0127] Figure 16 This is a cross-sectional view showing a modified example of the planetary support member of the electrically operated opening and closing unit according to the embodiment.

[0128] In this example, the surface 42f of the protrusion 42t of the planetary support 42 is a convex curved surface that protrudes towards the output side. This further reduces the contact area between the protrusion 42t and the shaft 43a, thereby further reducing sliding resistance. As described above, the output-side end of the protrusion 42t can be a curved surface, or it can be a plane or an angle as previously shown.

[0129] Furthermore, in this example, the surface 42h of the shaft portion 42a of the planetary support 42 is a convex curved surface protruding towards the input side. This further reduces the contact area between the shaft portion 42a and the protrusion 41t, thereby further reducing sliding resistance. As described above, the input-side end of the shaft portion 42a can be a curved surface, or it can be a plane or an angle as previously described.

[0130] Figure 17 This is a cross-sectional view showing a modified example of the planetary support member of the electrically operated opening and closing unit according to the embodiment.

[0131] In this example, the surface 43f of the protrusion 43t of the planetary support 43 is a convex curved surface protruding towards the output side. This further reduces the contact area between the protrusion 43t and the internal gear 24, thereby further reducing sliding resistance. As described above, the output-side end of the protrusion 43t can be a curved surface, or it can be a plane or an angle as previously shown.

[0132] Furthermore, in this example, the surface 43h of the shaft portion 43a of the planetary support 43 is a convex curved surface protruding towards the input side. This further reduces the contact area between the shaft portion 43a and the protrusion 42t, thereby further reducing sliding resistance. As described above, the input-side end of the shaft portion 43a can be a curved surface, or it can be a plane or an angle as previously shown.

[0133] The embodiments of the present invention have been described above. However, the present invention is not limited to these descriptions. Those skilled in the art can appropriately incorporate design changes into the foregoing embodiments, and any modifications that possess the features of the present invention are also included within the scope of the present invention. For example, the shape, size, material, configuration, and installation method of the various elements of the toilet device are not limited to the examples and can be appropriately modified.

[0134] Furthermore, the elements of the aforementioned embodiments can be combined within the scope of technical feasibility, and the structure obtained by combining them is also included in the scope of the present invention as long as it contains the features of the present invention.

[0135] Explanation of the label

[0136] 10 casing

[0137] 15 Upper surface

[0138] 19a First step section

[0139] 19b, second step

[0140] 20 Sun Gears

[0141] 21 Planetary Gears

[0142] 21g teeth

[0143] 21p input side

[0144] 21q output side

[0145] 21r, 21u convex parts

[0146] 22 planetary gears

[0147] 22g teeth

[0148] 22p input side

[0149] 22q output side

[0150] 22r, 22u convex part

[0151] 23 planetary gears

[0152] 23g teeth

[0153] 23p input side

[0154] 23q output side

[0155] 23r, 23u convex parts

[0156] 24 internal gears

[0157] 24f inner circumferential surface

[0158] 24g teeth

[0159] 25 housing components

[0160] 30 toilet seat

[0161] 31. First toilet seat folding section

[0162] 32. Second toilet seat folding section

[0163] 41 Planetary Support

[0164] 41a Shaft

[0165] 41b base

[0166] 41f surface

[0167] 41g teeth

[0168] 41h face

[0169] 41p input side

[0170] 41q output side

[0171] 41r convex part

[0172] 41s Sun Gear Division

[0173] 41t convex part

[0174] 42 planetary support components

[0175] 42a shaft

[0176] 42b base

[0177] 42f face

[0178] 42g teeth

[0179] 42h face

[0180] 42p input side

[0181] 42q output side

[0182] 42r convex part

[0183] 42s Sun Gear

[0184] 42t convex part

[0185] 43 Planetary Support

[0186] 43a shaft section

[0187] 43b base

[0188] 43f side

[0189] 43g teeth

[0190] 43h face

[0191] 43p input side

[0192] 43q output side

[0193] 43s gear section

[0194] 43t convex part

[0195] 50 toilet seat

[0196] 61. First toilet seat folding section

[0197] 62. Second toilet seat folding section

[0198] 70 Cleaning Nozzle

[0199] 80 electric switching unit

[0200] 80a Toilet Seat Opening and Closing Unit

[0201] 80b Toilet Seat Opening and Closing Unit

[0202] 81 housing

[0203] 81a housing components

[0204] 81b housing component

[0205] 82 electric motor

[0206] 82a Rotary Shaft

[0207] 83 Transmission Mechanism

[0208] 84 shaft section

[0209] 85 output shaft

[0210] 86 spring

[0211] 100 toilet units

[0212] Ax rotation axis

[0213] G1, G2, G3 gaps

[0214] T1, T2, T3 Transmission Section

[0215] p1~p6 through holes

[0216] x1~x3 rotation axis

Claims

1. A toilet device, characterized in that, It has an electrically operated opening and closing unit capable of opening and closing at least one of the toilet seat or toilet lid. The electric opening and closing unit has an electric motor and a transmission mechanism that transmits the rotation of the electric motor to one of the toilet seat and the toilet lid. The transmission mechanism has: A cylindrical internal gear with teeth on its inner circumferential surface; The first transmission unit, housed in the internal gear, transmits the rotational force of the electric motor; and The second transmission unit, housed within the internal gear, transmits the rotational force of the first transmission unit. The first transmission unit has: The first planetary gear, which transmits the rotational force of the electric motor, rotates on its own axis while revolving around the inner circumference of the internal gear about the axis of rotation; and The first planetary support component, which rotates around the rotation axis in conjunction with the rotation and revolution of the first planetary gear, The second transmission unit has: The second planetary gear, which transmits the rotational force of the first planetary support, rotates on its own axis while revolving around the rotation axis along the inner circumferential surface of the internal gear. The second planetary support member, which rotates about the rotation axis in conjunction with the rotation and revolution of the second planetary gear; and The shaft portion, which includes the rotation axis of the second planetary gear, revolves about the rotation axis. The first planetary support has a protrusion extending along the orbital path of the axis portion. The shaft portion contacts the protrusion. A gap is formed between the shaft portion and a portion of the first planetary support member other than the protrusion.

2. The toilet apparatus according to claim 1, characterized in that, The protrusion includes a convex curved surface that contacts the shaft portion.

3. The toilet apparatus according to claim 1 or 2, characterized in that, The shaft portion includes a convex curved surface that contacts the protrusion.

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