JP2007092942A - Motor device with gear, toilet lid, and toilet seat opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a motor device with a gear capable of being miniaturized in the direction of face and to provide a toilet lid and a toilet seat opening and closing device provided with this motor device with the gear. <P>SOLUTION: A second planetary gear mechanism 27B has a small diameter part 31B formed on a driving side carrier pinion 28B and having smaller diameter than outside diameter of an external tooth 30B meshing with one side of a toilet lid output gear 18B, and a toilet seat output gear 18A opposes to the small diameter part 31B. Consequently, the toilet seat output gear 18A can be arranged on an inner side in the radial direction more than the outside diameter of the external tooth 30B. By arranging the toilet seat output gear 18A on the inner side in the radial direction more than the outside diameter of the external tooth 30B in this way, the toilet seat output gear 18A and the external tooth 30B are overlapped in the radial direction. As a result, this motor device with the gear can be miniaturized in the direction of faces of the toilet lid and the toilet seat opening and closing device 1 by amount of overlapping. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a motor device with a gear for transmitting a driving force of a motor through a power transmission wheel train, and a toilet lid / toilet seat opening / closing device provided with the motor device with a gear.

A toilet lid / toilet seat opening / closing device that electrically opens and closes the toilet seat and toilet lid of a Western-style toilet has been proposed. In such a toilet lid / toilet seat opening / closing device, the driving force from two motors is a power transmission train consisting of two series. The motor device with gears that decelerates is transmitted to the rotating shaft of the toilet seat and toilet lid arranged coaxially (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 11-284

In the geared motor device used in such a toilet lid / toilet seat opening / closing device, the power transmission wheel train is composed of a plurality of spur gears. In addition, a power transmission wheel train is not provided in the gap between the two output gears of the toilet seat and the toilet lid rotation shaft arranged on the same axis, which is a so-called dead space. There is a problem of becoming an obstacle.

In view of the above problems, an object of the present invention is to provide a geared motor device that can be made compact in the surface direction, and a toilet lid / toilet seat opening / closing device including the geared motor device.

  In order to solve the above-described problems, in the present invention, two motors and two series of gears that transmit the driving force from the two motors to output gears respectively formed on two output shafts arranged coaxially. In the geared motor device having a power transmission wheel train, the power transmission wheel train is constituted by a planetary gear mechanism, and is formed on a planetary holder that holds the planetary gear of the planetary gear mechanism, and is on one side of the output gear. The other side of the output gear is opposed to a small-diameter portion having a smaller diameter than the outer diameter of the final gear meshing with the gear.

  In the present invention, it has the other planetary gear mechanism having the other planetary holder formed with the other final gear meshing with the other side of the output gear, the one side of the output gear and the other side of the output gear It is preferable to form each outer diameter substantially the same. In this way, if the outer diameters of the one side and the other side of the output gear are substantially the same, the planetary gear mechanism and the second planetary gear can be used if the loads applied to the two output shafts are substantially the same. The gear mechanism can be configured substantially the same. Therefore, it is possible to share most parts constituting the planetary gear mechanism and the second planetary gear mechanism, and the number of parts can be reduced.

  In the present invention, both of the two series of power transmission wheel trains are constituted by the planetary gear mechanism, and the two motors are arranged in such a manner that output portions are respectively output in the output direction of the output shaft and overlapped in the axial direction. When the front end side of the output shaft is the output side of the output shaft, one side of the output gear and the other side of the output gear are disposed on the base end side of the output shaft, and the output shaft It is preferable that they are arranged adjacent to each other in this order from the tip side to the other side of the output gear and one side of the output gear. If comprised in this way, since two series of power transmission wheel trains are comprised by the planetary gear mechanism, the dead space of a planar direction can be reduced compared with the reduction gear train by expansion | deployment of a spur gear. Further, each output portion is output in the output direction of the output shaft, and when the tip end side of the output shaft is the output side of the output shaft, one side of the output gear and the other side of the output gear are arranged on the base end side of the output shaft. Therefore, by arranging the base end side of the output shaft in substantially the same plane as the bottom portion of the motor case, two series of planetary gear mechanisms can be arranged overlapping with the two motors in the axial direction. In this case, in the planetary holder, the small-diameter portion may be formed between a support portion where the planetary gear is supported on one end side thereof and the final gear formed on the outer wall on the other end side. preferable. If comprised in this way, two motors, an output shaft, and two series planetary gear mechanisms can be efficiently arrange | positioned in an axial direction, and shortening to the axial direction of a motor apparatus with a gear can be achieved.

  In the present invention, the planetary holder is divided in the axial direction between the support portion and the final gear, and the other side of the output gear is disposed radially inward from the outer diameter of the final gear. Is preferred. If comprised in this way, even if it is a case where the other side of an output gear is arrange | positioned radially inside from the outer diameter of a final gear, after dropping the other side of an output gear, dropping a final gear from an axial direction Thus, the geared motor device can be easily assembled.

  In the present invention, it is preferable that the power supply terminals of the two motors respectively protrude from the bottom of the motor case opposite to the output direction of the output unit and be electrically connected to the same planar substrate. If comprised in this way, the number of parts can be reduced by supplying electric power to two motors by the same board | substrate. In addition, by using this substrate, it is possible to dispose position detectors linked to the two output shafts on the substrate. In this case, since the two position detection devices can be arranged by being overlapped in the axial direction, shortening in the axial direction can be achieved.

The motor device with gears according to the present invention can be used for applications such as rotating and driving at least one of a toilet lid and a toilet seat in a toilet lid / toilet seat opening / closing device, for example.

  In the present invention, the planetary gear mechanism as the power transmission wheel train has a small-diameter portion smaller than the outer diameter of the final gear meshed with one side of the output gear, which is formed in the planetary holder that holds the planetary gear. The other side of the output gear faces the small diameter portion. Therefore, the other side of the output gear can be disposed radially inward from the outer diameter of the final gear. Therefore, by arranging the other side of the output gear radially inward from the outer diameter of the final gear, the other side of the output gear and the final gear are superposed in the radial direction. The device can be made compact in the surface direction.

Hereinafter, a geared motor device to which the present invention is applied and a toilet lid / toilet seat opening / closing device including the geared motor device will be described with reference to the accompanying drawings.

(overall structure)
FIG. 1 is an explanatory diagram showing a configuration of a toilet lid / toilet seat opening / closing device provided with a geared motor device according to Embodiment 1 of the present invention. 2A and 2B are a plan view and a bottom view, respectively, showing a layout of a main part of the toilet lid / toilet seat opening / closing device shown in FIG. 1 corresponds to a cross-sectional view taken along line XX ′ in FIG.

1 and 2 (a) and 2 (b), a toilet lid / toilet seat opening / closing device 1 according to this embodiment is for electrically opening and closing a toilet lid (not shown) and a toilet seat (not shown) of a Western-style toilet. The case 6 is constituted by the first case body 61, the second case body 62, and the third case body 63, and the toilet lid shaft 4 for rotationally driving the toilet lid is driven from the inside of the case 6. The distal end side and the distal end side of the toilet seat shaft 5 for rotationally driving the toilet seat protrude. On the other hand, toilet lid shaft 4
The proximal end side of the toilet seat shaft 5 and the proximal end side of the toilet seat shaft 5 are respectively an upper output gear 18A as an upper output gear disposed on the upper side in the axial direction (+ Z direction described later), and the lower side in the axial direction (described later). A toilet lid output gear 18B is formed as a lower output gear disposed in the −Z direction. The toilet seat output gear 18A and the toilet lid output gear 18B are disposed close to each other in the axial direction.

Here, the toilet lid shaft 4 is a shaft body, and a cylindrical receiving portion 64 formed in the first case body 61 is fitted inside the cylindrical portion 41 on the proximal end side of the toilet lid shaft 4. On the other hand, the toilet seat shaft 5 is a cylindrical body that is coaxially fitted to the outside of the toilet lid shaft 4, and is fitted inside a cylindrical portion 65 formed in the third case body 63. Therefore, the toilet seat shaft 5 and the toilet lid shaft 4 are in a state in which each can independently rotate about the axis.

In the toilet lid / toilet seat opening / closing apparatus 1 configured as described above, the first geared motor device 10A is configured as a driving device for the toilet lid shaft 4, and the first driving device is configured as the driving device for the toilet seat shaft 5. Two geared motor devices 10B are configured, and the configuration of these geared motor devices 10A and 10B will be described below. As shown in FIG. 1, the first motor 11A and the second motor 11B are arranged so as to overlap in the axial direction so that the vertical direction is the same in the axial direction. That is, the first motor 11A and the second motor 11B are arranged such that the rotary shafts 12A and 12B as the output portions thereof are in the same vertical direction in the axial direction. At this time, the direction in which the toilet seat shaft 5 and the toilet lid shaft 4 protrude is defined as the + Z direction in the axial direction, and the opposite side is defined as the −Z direction.

(Configuration of First Geared Motor Device 10A)
FIG. 3 is a cross-sectional view of a torque limiter incorporated in a toilet lid / toilet seat opening / closing device equipped with a geared motor device to which the present invention is applied.

First, the first geared motor apparatus 10A includes a rotating shaft 12 as an output portion of the motor 11A.
A first motor 11A fixed in the case with A facing in the + Z direction, and the first motor 1
The first power transmission wheel train 9 </ b> A for decelerating and transmitting the driving force from 1 </ b> A to the toilet seat output gear 18 </ b> A formed on the proximal end side of the toilet seat shaft 5. The first power transmission wheel train 9A includes a pinion gear 13A fixed to the rotating shaft 12A of the first motor 11A, an idler 14A meshing with the pinion gear 13A, and a first wheel with a large-diameter gear meshing with the idler 14A. 15A, No. 2 wheel 16A in which the large diameter gear meshes with the small diameter gear of the No. 1 wheel 15A, No. 3 wheel 17A in which the large diameter gear meshes with the small diameter gear of the No. 2 wheel 16A, and No. 3 wheel 17A The first planetary gear mechanism 27A as a speed reduction mechanism with which the small-diameter gear meshes, and in this first planetary gear mechanism 27A, the external teeth 30A of the carrier pinion 25A as the planetary holder are connected to the toilet seat output gear 18A. Meshed. As shown in FIG. 1, a potentiometer gear 40 </ b> A meshes with the external teeth 30 </ b> A, and a potentiometer 41 </ b> A that detects the rotational position via the potentiometer gear 40 </ b> A is disposed on the planar substrate 37. ing. The substrate 37 is electrically connected to a power supply terminal 38A that protrudes from the bottom of the motor case of the first motor 11A opposite to the output direction of the rotary shaft 12A.

  Again, in FIG. 1 and FIGS. 2A and 2B, the first planetary gear mechanism 27A is composed of a sun gear 21A and a planetary gear portion 26A. The sun gear 21A includes a drive-side sun gear body 19A that meshes with the small-diameter gear of the third wheel 17A, and a driven-side sun gear body 20A that is disposed in the −Z direction with respect to the drive-side sun gear 19A. .

  On the other hand, the planetary gear portion 26A is an outer peripheral side of an extended gear 22A extending in the −Z direction from the driven-side sun gear body 20A, and includes a fixed internal gear 23A fixed to the case 6 and an extended gear. 22A, a plurality of planetary gears 24A that mesh with the fixed internal gear 23A, and a plurality of planetary gears 24A, each of which is rotatably supported by a carrier pinion 25A.

  In this embodiment, the first motor 11A and the first planetary gear mechanism 27A are superposed in the axial direction.

In this embodiment, when the first geared motor device 10A is operated, the driving force of the rotating shaft 12A is the pinion gear 13A, the idler 14A, the first wheel 15A, the second wheel 16A, the third wheel 17A, the first planet. This is transmitted to the toilet seat output gear 18A via the sun gear 21A, the planetary gear 24A, and the carrier pinion 25A of the gear mechanism 27A, the toilet seat shaft 4 rotates around the axis, and the toilet seat is driven in the opening direction or the closing direction.

Here, in the sun gear 21A of the first planetary gear mechanism 27A, the first torque limiter 50A shown in FIG. 3 is configured between the driving-side sun gear body 19A and the driven-side sun gear body 20A. Transmission of driving force from the driving side sun gear body 19A to the driven side sun gear body 20A is performed via the first torque limiter 50A.

As such a first torque limiter 50A, in this embodiment, the driven-side sun gear body 20A is used.
Is formed with a cylindrical portion 201 that protrudes toward the driving-side sun gear body 19A, and this cylindrical portion 201 is an outer periphery of the cylindrical portion 191 that protrudes from the driving-side sun gear body 19A toward the driven-side sun gear body 20A. It is slidably fitted on the side. Three through-holes 54 penetrating in the radial direction are formed in the cylindrical portion 201, and six grooves 51 (concave portions) are formed on the outer peripheral surface of the cylindrical portion 191. The three through-holes 54 are formed at positions opposite to every other six grooves 51, and the three roller pins 52 (engaging members / rotating members) are formed between the through-holes 54 and the grooves 51. It is arranged so as to straddle both. A coil spring 53 is disposed outside the cylindrical portion 201 and urges the roller pin 52 toward the bottom of the groove 51. Therefore, when the output side is within the normal load range, the roller pin 52 is disposed so as to straddle both, so that the driving force of the driving side sun gear body 19A can be transmitted to the driven side gear body 20A, and the output side When excessive torque is applied to the roller pin 52, the roller pin 52 escapes from the groove 51 against the urging force of the coil spring 53, so that the driving force of the driving side sun gear body 19A is cut off and is not transmitted to the driven side sun gear body 20A.

(Configuration of Second Geared Motor Device 10B)
In the toilet lid / toilet seat opening / closing device 1 of the present embodiment, the second in parallel with the first geared motor device 10A.
The second geared motor device 10B is fixed in the case 6 with the rotation shaft 12B serving as the output portion of the motor 11B facing the + Z direction. 11B and a second power transmission wheel train 9B for decelerating and transmitting the driving force from the second motor 11B to the toilet lid output gear 18B formed on the proximal end side of the toilet lid shaft 4 ing. The second power transmission wheel train 9B includes a pinion gear 13B fixed to the rotating shaft 12B of the second motor 11B, an idler 14B meshing with the pinion gear 13B, and a first gear with a large-diameter gear meshing with the idler 14B. Car 15B, No. 2 wheel 16B in which the large diameter gear meshes with the small diameter gear of this No. 1 wheel 15B, No. 3 wheel 17B in which the large diameter gear meshes with the small diameter gear of this No. 2 wheel 16B, and this No. 3 car And a second planetary gear mechanism 27B as a speed reduction mechanism that meshes with a small-diameter gear of 17B, and a carrier pinion 25B as a planet holder of the second planetary gear mechanism 27B meshes with the toilet lid output gear 18B. Yes.

As shown in FIG. 1, a potentiometer gear 40B meshes with the external teeth 30B, and a potentiometer 41B that detects the rotational position via the potentiometer gear 40B is disposed on the planar substrate 37. ing. The substrate 37 is electrically connected to a power supply terminal 38B that protrudes from the bottom of the motor case of the second motor 11B opposite to the output direction of the rotary shaft 12B. In the case of this embodiment, the power supply terminal 38A and the power supply terminal 38B are both electrically connected to the same substrate 37.
The end of the auxiliary spring 8 mounted around the cylindrical portion of the toilet seat output gear 18A is connected to the toilet seat output gear 18A and the third case body 63, and the auxiliary spring 8 is connected to the toilet seat shaft. 5 is urged in the opening direction.

Again, in FIGS. 1 and 2 (a) and 2 (b), the second planetary gear mechanism 27B is constituted by a sun gear 21B and a planetary gear portion 26B, and the sun gear 21B is the same as that of the third wheel 17B. A drive-side sun gear body 19B meshing with the small-diameter gear and a driven-side sun gear body 20B disposed in the −Z direction with respect to the drive-side sun gear 19B are provided.

  On the other hand, the planetary gear portion 26B is an outer peripheral side of an extended gear 22B extending in the −Z direction from the driven-side sun gear body 20B, and includes a fixed internal gear 23B fixed to the case 6 and an extended gear. 22B, a plurality of planetary gears 24B meshing with the fixed internal gear 23B, and a plurality of planetary gears 24B are each constituted by a carrier pinion 25B that is rotatably supported.

  In the planetary gear portion 26B, the carrier pinion 25B is divided in the axial direction, and receives a side surface of the planetary gear 24B and a drive-side carrier pinion body 28B formed with a support portion 32B on which the planetary gear 24B is rotatably supported. And a driven carrier pinion body 29B on which external teeth 30B are formed as final gears. The drive-side carrier pinion body 28B extends from the support portion 32B side to the −Z direction side, and has a small-diameter portion 31B having a smaller diameter and a shaft shape than the support portion 32B. A recess 35B is formed on the tip surface. The driven-side carrier pinion body 29B has a shaft portion 36B extending from the external tooth 30B side to the + Z direction side. By engaging this shaft portion 36B with the recess 35B, the drive-side carrier pinion body 29B is provided. The body 28B and the driven carrier pinion body 29B can rotate together. At this time, the tip surface of the small diameter portion 31B is in contact with the side surface of the external tooth 30B. Further, the small diameter portion 31B is formed to have a smaller diameter than the outer shape of the external tooth 30B. Therefore, the small diameter portion 31B is formed between the support portion 32B and the external teeth 30B, and the toilet seat output gear 18A is disposed between the support portion 32B and the external teeth 30B so as to face the small diameter portion 31B. ing. Accordingly, the output gear 18A is superposed in the radial direction with respect to the support portion 32B and the external teeth 30B.

Here, in the sun gear 21B of the second planetary gear mechanism 27B, the second torque limiter 50B is configured between the drive-side sun gear body 19B and the driven-side sun gear body 20B, and the drive-side sun gear body. The driving force is transmitted from 19B to the driven sun gear body 20B through the second torque limiter 50B.

  As such a first torque limiter 50B, in the present embodiment, as shown in FIG. 3, the driven-side sun gear body 20B protrudes toward the drive-side sun gear body 19B, as in the first torque limiter 50A. The cylindrical portion 201 is slidably fitted to the outer peripheral side of the cylindrical portion 191 that protrudes from the driving-side sun gear body 19B toward the driven-side sun gear body 20B. Three through-holes 54 penetrating in the radial direction are formed in the cylindrical portion 201, and six grooves 51 (concave portions) are formed on the outer peripheral surface of the cylindrical portion 191. The three through-holes 54 are formed at positions opposite to every other six grooves 51, and the three roller pins 52 (engaging members / rotating members) are formed between the through-holes 54 and the grooves 51. It is arranged so as to straddle both. A coil spring 53 is disposed outside the cylindrical portion 201 and urges the roller pin 52 toward the bottom of the groove 51. Therefore, when the output side is within the normal load range, the roller pin 52 is disposed so as to straddle both, so that the driving force of the driving side sun gear body 19B can be transmitted to the driven side gear body 20B, and the output side When excessive torque is applied to the roller spring 52, the roller pin 52 escapes from the groove 51 against the urging force of the coil spring 53, so that the driving force of the driving side sun gear body 19B is cut off and is not transmitted to the driven side sun gear body 20B.

  Again, in FIGS. 1 and 2 (a) and 2 (b), when the second geared motor device 10B is operated, the driving force of the rotating shaft 12B is the pinion gear 13B, idler 14B, first wheel 15B, second. The wheel 16B, the third wheel 17B, the sun gear 21B of the first planetary gear mechanism 27B, the planetary gear 24B, and the carrier pinion 25B are transmitted to the toilet seat output gear 18B, and the toilet lid shaft 4 rotates around the axis line. The lid is driven in the opening direction or the closing direction.

(Effect of this embodiment)
As described above, in the present embodiment, a small diameter portion having a smaller diameter than the outer diameter of the external teeth 30B meshed with one side of the toilet lid output gear 18B formed on the drive side carrier pinion 28B of the second planetary gear mechanism 27B. The toilet seat output gear 18A faces 31B. Moreover, the toilet seat output gear 18A is disposed radially inward from the outer diameter of the outer teeth 30B. By disposing the toilet seat output gear 18A in the radial direction from the outer diameter of the outer teeth 30B in this manner, the toilet seat output gear 18A and the outer teeth 30B are polymerized in the radial direction. -The toilet seat opening / closing device 1 can be made compact in the surface direction.

  In the present embodiment, the outer diameters of the toilet seat output gear 18A and the toilet lid output gear 18B are formed to be the same, and the loads applied to the toilet seat shaft 5 and the toilet lid shaft 4 are substantially the same, so the first planetary gear mechanism 27A. And the second planetary gear mechanism 27B are configured substantially the same. Therefore, since most parts can be shared by the first planetary gear mechanism 27A and the second planetary gear mechanism 27B, the number of parts can be reduced.

  In this embodiment, the two series of power transmission wheel trains have a first planetary gear mechanism 27A and a second planetary gear mechanism 27B. Therefore, the dead space in the plane direction can be reduced as compared with the reduction gear train by the development of the spur gear. The first motor 11A and the second motor 11B are arranged such that the rotary shaft 12A and the rotary shaft 12B are output in the output direction of the toilet seat shaft 5 and the toilet lid shaft 4, respectively, and overlap in the axial direction. On the proximal end side of the toilet seat shaft 5 and the toilet lid shaft 4, a toilet seat output gear 18A and a toilet lid output gear 18B are disposed. With this configuration, the rotary shaft 12A and the toilet seat output gear 18A, and the rotary shaft 12B and the toilet lid output gear 18B are spaced apart from each other in the axial direction. The first planetary gear mechanism 27A can be disposed by using a separation portion between the second planetary gear mechanism 27B and the second planetary gear mechanism 27B by using a separation portion between the rotary shaft 12B and the toilet lid output gear 18B. it can. Further, the base end sides of the toilet seat shaft 5 and the toilet lid shaft 4 are arranged in substantially the same plane as the bottom of the motor case, and the planetary gear mechanism 27A and the second planetary gear mechanism 27B are connected to the two motors 11A and 11B in the axial direction. Since they are arranged in a superposed manner, the toilet lid / toilet seat opening / closing device 1 can be shortened in the axial direction.

  In this embodiment, the carrier pinion 25B includes a driving carrier pinion body 28B and a driven carrier pinion body 29B that are divided in the axial direction, and the toilet seat output gear 18A is arranged on the inner side in the radial direction from the outer diameter of the outer teeth 30B. It is installed. Therefore, despite the fact that the toilet seat output gear 18A is disposed radially inward from the outer diameter of the external tooth 30B, the toilet seat shaft 5 is dropped after the drive side carrier pinion body 28B is dropped, and then the driven By dropping the side carrier pinion body 29B and the toilet lid shaft 4, all these components can be dropped from the axial direction, and the toilet lid / toilet seat opening / closing device 1 can be easily assembled.

  In this embodiment, the power supply terminals 38A and 38B of the two motors 11A and 11B protrude from the bottom of the motor case opposite to the output direction of the toilet seat shaft 5 and the toilet lid shaft 4, and are electrically connected to the same flat substrate 37. It is connected. Therefore, the number of parts can be reduced by supplying power to the two motors 11A and 11B on the same substrate 37. In addition, since the potentiometers 41A and 41B respectively interlocked with the toilet seat shaft 5 and the toilet lid shaft 4 are arranged on the substrate 37 in an axial direction, the toilet lid / toilet seat opening / closing device 1 is shortened in the axial direction. be able to.

[Other embodiments]
The planetary gear mechanism 27A of the toilet lid / toilet seat opening / closing device 1 according to the above embodiment does not necessarily need to be a planetary gear mechanism, and may be composed of only a spur gear.

It is explanatory drawing which shows the structure of the toilet lid and toilet seat opening / closing apparatus provided with the motor apparatus with a gear which concerns on Embodiment 1 of this invention. ((A), (b) is the top view and bottom view which respectively show the layout of the principal part of the toilet lid / toilet seat opening / closing apparatus shown in FIG. It is sectional drawing of the torque limiter integrated in the toilet lid and toilet seat opening / closing apparatus provided with the motor apparatus with a gear to which this invention is applied.

Explanation of symbols

1 Toilet lid and toilet seat opening and closing device 4 Toilet lid shaft (output shaft)
5 Toilet seat shaft (output shaft)
9A, 9B Power transmission train wheel 10A, 10B Geared motor device 11A, 11B Motor 27A, 27B Planetary gear mechanism 18A Toilet seat output gear (output gear)
18B Toilet lid output gear (output gear)
24A, 24B Planetary gear 25A, 25B Carrier pinion (planet holder)
30A, 30B External teeth (final gear)
31B Small diameter portion 32B Support portion 37 Substrate 38A, 38B Power supply terminal

Claims (7)

In a geared motor apparatus having two motors and two series of power transmission wheel trains for transmitting driving forces from the two motors to output gears formed on two output shafts arranged coaxially ,
The power transmission wheel train is composed of a planetary gear mechanism, and is formed in a planetary holder that holds the planetary gear of the planetary gear mechanism, and has a smaller diameter portion that is smaller than the outer diameter of the final gear that meshes with one side of the output gear. Further, the other side of the output gear is opposed to the geared motor device.   The first planetary gear mechanism according to claim 1, comprising the other planetary gear mechanism having the other planetary holder formed with the other final gear meshing with the other side of the output gear, and one side of the output gear and the other side of the output gear. The geared motor device is characterized in that the outer diameters of the gears are substantially the same.   3. The power transmission gear train of claim 1 or 2, wherein both of the two series of power transmission trains are constituted by the planetary gear mechanism, and the two motors are output in the output direction of the output shaft and superposed in the axial direction. When the distal end side of the output shaft is the output side of the output shaft, one side of the output gear and the other side of the output gear are disposed on the base end side of the output shaft, and A geared motor device, wherein the motor device is disposed adjacent to the output shaft from the tip side in the order of the other side of the output gear and the one side of the output gear.   In Claim 3, the said small diameter part is formed in the said planetary holder between the support part by which the said planetary gear was supported by the one end side, and the said last gear formed in the outer wall of the other end side. A motor apparatus with gears.   5. The planetary holder according to claim 4, wherein the planetary holder is divided in an axial direction between the support portion and the final gear, and the other side of the output gear is disposed radially inward from the outer diameter of the final gear. A motor apparatus with gears.   6. The method according to claim 3, wherein the power supply terminals of the two motors protrude from the bottom of the motor case opposite to the output direction of the output unit and are electrically connected to the same planar substrate. A geared motor device. A toilet lid / toilet seat opening / closing device comprising a geared motor device as defined in any one of claims 1 to 6, wherein at least one of the toilet lid and the toilet seat is rotationally driven by the geared motor device. Toilet lid and toilet seat opening and closing device.

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