JP2019218839A - Electric operating device - Google Patents

Abstract

To provide an electric operating device capable of manually switching a drain port from an open state to a closed state at the time of a power failure or the like while improving the degree of freedom related to installation.SOLUTION: An electric operating device 3 includes: a first transmission piece 3331 having a locking portion and a second transmission piece 3332 having a locked portion; and the plug cover moves up and down by a force applied from the locking portion to the locked portion, and the open/closed state of the drain port is switched. Further, by the clutch mechanism, when a relatively large load is applied from the plug cover side to the second transmission piece 3332, the locking of the locking portion with respect to the locked portion becomes insufficient, and the second transmission piece 3332 can be operated independently with respect to the first transmission piece 3331. Thus, by applying a downward force to the plug cover when the drain port is open, the second transmission piece 3332 operates independently while the locking of the locking portion with respect to the locked portion is in an insufficient state. Thus the plug cover can be moved downward.SELECTED DRAWING: Figure 9

Description

  TECHNICAL FIELD The present invention relates to an electric operation device for remotely controlling a stopper provided at a drain port of a tank body by a motor operated by energization.

  2. Description of the Related Art Conventionally, an operating device that opens and closes a drain port by remotely operating a stopper provided at a drain port of a tub body (for example, a bathtub or a washbasin) (operating at a location away from the lid) has been known. I have.

  As the operation device, for example, a manual operation device including a reciprocally operable operation button to be manually operated by a user, and a transmission body for transmitting a driving force by the operation of the operation button to the plug lid side It has been known. In such a manual operation device, operating the operation button moves the transmission body along the longitudinal direction, and as a result, the stopper lid moves up and down to switch the open / close state of the drain port.

  In recent years, an electric operating device that switches the open / close state of a drain port by moving a stopper lid up and down electrically has been proposed (for example, see Patent Document 1). The electric operation device is provided with a drive source (for example, a motor or the like) that is energized, and is particularly different from a manual operation device in that the transmission body is operated by the operation of the drive source.

  Further, in the electric operating device, from the viewpoint of reduction of power consumption and safety, power is supplied to the driving source only when the stopper is moved up and down, and the stopper is maintained in the upwardly moved state (that is, It is desirable to eliminate the need for power supply for maintaining the drain port open). Thus, for example, in the technique described in Patent Document 1 described above, the thrust lock mechanism is used, so that the plug lid can be maintained in an up state without supplying power. In this document, the provision of a shock absorber (spring member) that contracts when a downward force is applied to the upwardly moving stopper lid prevents damage to the transmission body, the drive source, and the like. .

JP 2003-247254 A

  By the way, in the above-mentioned technology, if a power failure or a failure of the drive source occurs while the drain port is in an open state (a state in which the stopper is moved upward), the drive source cannot be operated normally, and the drain port is It will be kept open. However, in view of the fact that there may arise a demand for storing water in the tank body at the time of a power failure due to a disaster, for example, it is desirable that at least the drain port can be manually switched from the open state to the closed state. In this regard, in the above-described technology, in order to be able to manually switch the open / close state of the drain port, a reciprocating operation button to be manually operated and a driving force due to displacement of the operation button are transmitted to the plug lid side. (For example, a manual operation shaft) is provided, but if an operation button or the above-mentioned mechanism is provided, the size of the operation device will be increased, and as a result, the degree of freedom related to the installation of the operation device will decrease. There is a possibility that it will.

  Furthermore, even if the operation button is provided, if the user exclusively uses the opening and closing of the lid by electric operation, the user forgets the significance of the operation button (that is, the drain button is closed from the open state by the operation button). State can be manually switched to the state).

  In addition, when the user forgets the significance of the operation buttons, or when the operation buttons are not provided in the first place, the user side should consider closing the drain port by pressing the stopper lid downward. Although it is natural, usually the lid is hardly moved even if it is pushed downward, and if such a lid is forcibly pressed downward, various parts such as the transmission body may be damaged or damaged. This may result in deformation, which may hinder normal use after restoration from a power failure. When a shock absorber is provided, even if the stopper is pressed downward, the shock absorber is simply compressed, and the drain port cannot be switched from the open state to the closed state.

  The present invention has been made in view of the above circumstances, and an object thereof is to manually switch a drain port from an open state to a closed state at the time of a power failure or the like while improving the degree of freedom related to installation. An object of the present invention is to provide a motor-operated operating device that can be used.

  Hereinafter, each means suitable for solving the above-mentioned object will be described separately. In addition, the function and effect peculiar to the corresponding means will be added as necessary.

Means 1. An electric operation device for remotely controlling a stopper for opening and closing a drain port formed in a tank body,
A motor having a shaft portion rotatable by energization,
A transmission body that transmits a driving force due to rotation of the shaft to the stopper side.
The transmitter is
A first transmission piece having a predetermined locking portion and operating with rotation of the shaft,
The locking portion has a locked portion to be locked, and a force is applied from the locking portion to the locked portion during operation of the first transmission piece portion so that the first transmission piece portion It is operable in the forward direction or the reverse direction according to the operation direction, and by operating in the forward direction, the stopper is moved upward to open the drain port, while operating in the reverse direction. It is possible to close the drain port by lowering the stopper, and when a downward load is applied to the stopper at least in a state where the stopper is moved upward, the stopper side A second transmission piece configured to apply a load from
While allowing the operation of the first transmission piece and the second transmission piece with the rotation of the shaft, when the load applied to the second transmission piece from the stopper side is a predetermined amount or less. A stopper mechanism that regulates the operation of the first transmission piece and the second transmission piece according to the load,
When a load exceeding the predetermined amount is applied from the stopper side to the second transmission piece, the locking of the locking portion with respect to the locked portion is in an insufficient state, and the operation by the stopper mechanism is performed. A clutch mechanism that enables the second transmission piece to operate independently of the restricted first transmission piece,
When the stopper is moved upward and the drain port is in an open state, a load exceeding the predetermined amount is applied to the stopper from the stopper side by applying a downward force to the stopper. In addition, while the clutch mechanism makes the locking of the locking portion to the locked portion insufficient, the second transmission piece is restricted to the first transmission piece whose operation is regulated by the stopper mechanism. The electric operating device is characterized in that the parts are operated independently in the reverse direction, and thus the stopper is movable downward.

  In addition, "the locking state of the locking portion with respect to the locked portion is insufficient" means, for example, that the locking portion is in contact with the locked portion, but the locking portion with respect to the locked portion. Is not enough, and when the locked part is moved by operating the second transmission piece, only the locked part moves with little or no movement of the locked part. (For example, a state in which the locked portion moves over the locking portion).

  According to the above-mentioned means 1, when the load applied from the stopper side to the second transmission piece is not more than a predetermined amount, the stopper mechanism causes the first transmission piece and the second transmission piece to operate according to the load. Can be regulated. Therefore, by stopping the second transmission piece in the state of being moved in the forward direction by the stopper mechanism, the stopper is moved upward while the motor is not energized (that is, the state in which the drain port is opened). Can be maintained). As a result, electric power for maintaining the drain port in the open state can be made unnecessary, and power consumption can be reduced and safety can be effectively improved.

  Further, according to the means 1, when a load exceeding the predetermined amount is applied to the second transmission piece from the stopper side, the clutch mechanism causes the second transmission piece to be locked to the locked portion provided on the second transmission piece. The locking of the locking portion provided on one transmission piece can be in an insufficient state. As a result, the second transmission piece is independent of the first transmission piece whose operation is restricted by the stopper mechanism. Can be operated. For example, when the first transmission piece and the second transmission piece each rotate, the second transmission piece idles with respect to the first transmission piece whose rotation is restricted by the stopper mechanism. be able to. Therefore, when the stopper is moved upward and the drain port is in an open state, a second force is applied to the stopper so that a load exceeding the predetermined amount is applied to the second transmission piece, whereby the second transmission is performed. The pieces can be operated independently in opposite directions, and thus the closure can be moved down manually. Therefore, even if the power operation of the stopper is disabled due to a power failure, a motor failure, or the like, the drain port can be manually switched from the open state to the closed state. Note that the manual switching of the drain port from the open state to the closed state is performed by removing the stopper from a vertically movable support shaft for supporting the stopper, as in means 3 described later, and then supporting the stopper shaft. May be configured to be pressed downward, or may be configured to be performed only by pressing the stopper, as in the means 2 described below.

  Further, according to the above-described means 1, even if the user does not know or forget that the stopper can be manually moved down, the stopper is pressed downward. It is very convenient for the user to understand that the stopper can be moved down manually by simply taking an action that is naturally easy to think of when closing the mouth.

  Further, when a downward force is applied to the stopper to apply a load to the second transmission piece, the second transmission piece operates independently of the first transmission piece (for example, idles), It is possible to more reliably prevent damage and deformation of components such as a motor and a transmission body due to application of a load. Therefore, even when the drain port is manually closed, normal use is not hindered after restoration from power failure.

  In addition, it is not necessary to provide an operation button or the like as disclosed in Patent Document 1 in order to manually close the drain port. Therefore, the size of the operating device can be reduced, and the degree of freedom related to the installation of the operating device can be improved.

  Means 2. When the stopper is moved upward and the outlet is in an open state, the stopper is configured to be capable of closing the outlet by only applying a downward force to the stopper. 2. The electric operating device according to claim 1, wherein

  According to the above means 2, the drain port can be manually closed only by applying a downward force to the stopper. Therefore, the user can intuitively switch the drain port from the open state to the closed state by simply taking an action which is naturally conceivable when trying to close the drain port by pressing the stopper lid downward. Can be. Also, even if the user does not know or forgets that the drain port can be manually switched to the closed state by pressing the stopper, as described above, the user can naturally come up with an action that is easy to come up with. By taking this, the drain can be closed manually, which is very convenient for the user.

Means 3. Driving force by the rotation of the shaft portion is transmitted to the lid side through the transmission body and a vertically movable support shaft that supports the lid at the top,
The drain lid is configured to be in a closed state by the stopper being disposed at a predetermined closed position,
When the support shaft moves upward and the drain port is in an open state, a load exceeding the predetermined amount is applied from the support shaft side to the second transmission piece by applying a downward force to the support shaft. In addition, while the clutch mechanism makes the locking of the locking portion to the locked portion insufficient, the second transmission piece is restricted to the first transmission piece whose operation is regulated by the stopper mechanism. The parts are independently operated in the opposite direction, and thus the support shaft is configured to be able to move downward,
When the support shaft is moved upward and the drain port is open, the stopper is removed from the support shaft and a downward force is applied to the support shaft to close the stopper. 2. The electric operating device according to claim 1, wherein the supporting shaft can be moved down to a position where the supporting shaft can be arranged.

  The “closed position” refers to a position where the drain port can be closed by disposing the stopper.

  Depending on the structure of the clutch mechanism, if the downward force is released after the downward movement of the support shaft by applying a downward force to the support shaft, the support shaft may return slightly (upwardly move). . For this reason, a downward force is applied to the stopper in a state where the stopper is supported by the support shaft, and the stopper is brought into contact with a predetermined contact object (so that the stopper is in contact when the drain port is closed). (Set one), and then, when the application of force to the stopper is released, the stopper and the support shaft slightly move upward, and the drain port cannot be closed. Things can happen.

  In this regard, according to the means 3, the stopper shaft is removed from the support shaft and then a downward force is applied to the support shaft to lower the support shaft to a position where the stopper can be arranged to the closed position. be able to. Therefore, even if the support shaft slightly returns after the downward movement, the drain shaft can be more reliably closed by sufficiently lowering the support shaft. Further, since the support shaft is moved down after removing the stopper, the stopper does not come into contact with the contact object, and the support shaft can be easily moved down sufficiently.

Means 4. Equipped with an operated part that can be operated manually,
A load generated by manually operating the operated portion is configured to be applied to the second transmission piece without passing through the first transmission piece,
By manually operating the operated portion and applying a load exceeding the predetermined amount to the second transmission piece portion, the clutch mechanism makes the engagement of the engagement portion to the engagement portion in an insufficient state. Means 1, wherein the second transmission piece can be independently operated in the forward direction or the reverse direction with respect to the first transmission piece whose operation is restricted by the stopper mechanism. 4. The electric operating device according to any one of claims 1 to 3.

  According to the above means 4, by manually operating the operated portion and applying a load exceeding the predetermined amount to the second transmission piece, the second transmission piece is restricted by the stopper mechanism to the second transmission piece. The transmission pieces can be independently operated in the forward or reverse direction. Therefore, not only can the second transmission piece be operated in the reverse direction to close the drain, but also the second transmission piece can be operated in the forward direction to open the drain, At the time of a power failure or the like, the open / close state of the drain port can be freely switched manually. Thereby, the convenience for the user can be improved.

  The operated part may be rotated by a manual operation. In this case, the electric operating device can be made smaller in comparison with the case where the operated portion that can reciprocate in the linear direction is provided, and thus the degree of freedom in installing the device is sufficiently improved. Can be done.

Means 5. The stopper mechanism includes:
A worm attached to the shaft,
The electric operating device according to any one of means 1 to 4, wherein the electric operating device is configured by a self-locking mechanism including a gear meshed with the worm.

  According to the means 5, the stopper mechanism can be realized by the self-locking effect provided by the worm and the gear meshed with the worm. Therefore, the stopper mechanism can be simplified, and the complexity of the apparatus and the increase in manufacturing cost can be more reliably prevented.

Means 6. While moving with the operation of the second transmission piece, the second transmission piece is disposed at a predetermined first position when the second transmission piece moves in the forward direction and the stopper is moved upward. A displacement movement unit disposed at a second position different from the first position when the second transmission piece operates in the reverse direction and the stopper is moved downward,
The electric operating device according to any one of claims 1 to 5, wherein a rotation direction of the shaft is controlled based on information from a position detection sensor that detects an arrangement position of the displacement motion unit.

  Note that examples of the “displacement moving unit” include a unit that reciprocates and a unit that rotates in both directions.

  When switching the open / close state of the drain port by energizing the motor, it is necessary to grasp the open / close state of the drain port and rotate the shaft in an appropriate direction. Here, as a method of grasping the opening / closing state of the drain port, a method of grasping the opening / closing state of the drain port according to the rotation angle of the shaft portion can be considered. However, in the above-mentioned means 1 and the like, the shaft does not rotate when the drain port is manually switched from the open state to the closed state. Therefore, if the above method is used, the open / close state of the drain port will be erroneously grasped. Would. As a result, when the open / close state of the drain port is to be switched by electric power, the shaft portion tends to rotate in the wrong direction, which may result in damage to the components.

  In this regard, according to the means 6, the displacement movement unit that moves in accordance with the operation of the second transmission piece unit is provided, and the axis is determined based on information from a position detection sensor that detects the position of the displacement movement unit. The direction of rotation of the part is controlled. Here, the displacement motion unit is disposed at the first position or the second position according to a change in the position of the second transmission piece, and thus the position of the stopper. That is, the displacement motion unit is disposed at the first position or the second position according to the open / closed state of the drain port. Therefore, by detecting the position of the displacement motion section, the actual open / closed state of the drain port can be grasped. Therefore, when the open / close state of the drain port is switched by electric power, the shaft portion can be rotated in an appropriate direction according to the actual open / close state of the drain port. Thus, it is possible to more reliably prevent damage to components due to an incorrect rotation direction of the shaft. Further, after the drain port is manually closed, normal use is possible without taking any special measures, and the convenience for the user can be further enhanced.

Means 7. The first transmission piece and the second transmission piece are gears that rotate on the same rotation shaft, respectively.
The locked portion is formed on the inner periphery of the second transmission piece,
The locking portion is provided at a portion of the first transmission piece that is inserted into the second transmission piece, and is locked to the locked portion,
The electric operating device according to any one of claims 1 to 6, wherein the clutch mechanism includes a bending portion that elastically deforms the locking portion along a direction orthogonal to the rotation axis.

  According to the means (7), the clutch mechanism includes the bending portion that allows the locking portion to be elastically deformable, and deforms the bending portion to elastically deform (move) the locking portion toward the rotation shaft. Thus, the locking of the locking portion to the locked portion can be made in an insufficient state. Therefore, the clutch mechanism can be realized with a very simple configuration, and the complexity of the device and increase in manufacturing cost can be suppressed more effectively.

Means 8. The first transmission piece and the second transmission piece are gears that rotate on the same rotation shaft, respectively.
The locking portion is formed on the inner periphery of the first transmission piece portion,
The locked portion is provided at a portion of the second transmission piece that is inserted into the first transmission piece, and the locking portion is locked,
The electric operating device according to any one of claims 1 to 6, wherein the clutch mechanism includes a bending portion that elastically deforms the locked portion along a direction orthogonal to the rotation axis. .

  In the above-described means 7, the locked portion is provided on the inner periphery of the second transmission piece portion, and the locking portion is provided in a portion of the first transmission piece portion that is inserted into the second transmission piece portion. According to the means 8, the locking portion is provided on the inner periphery of the first transmission piece portion, and the locked portion is provided at a portion of the second transmission piece portion inserted through the first transmission piece portion. ing. Therefore, according to the above-mentioned means 8, by deforming the bending deformation portion and elastically deforming (moving) the locked portion toward the rotating shaft, the locking of the locking portion with respect to the locked portion is in an insufficient state. can do. Therefore, similarly to the means 7, the clutch mechanism can be realized with a very simple configuration, and the complexity of the apparatus and the increase in manufacturing cost can be suppressed more effectively.

It is a schematic diagram of an electric drain cock operation system and the like. It is a perspective schematic diagram of a bathroom unit etc. It is a perspective schematic diagram of the bathroom unit etc. in the state which removed the apron. FIG. 4 is a partially cutaway front view of a drain plug device and the like when a drain port is closed. FIG. 4 is a partially cutaway front view of a drainage plug device and the like when a drainage port is opened. It is a partially broken front view of an electric operation device, a guide cylinder, and the like. FIG. 3 is a schematic perspective view of the electric operating device. It is an exploded perspective view of an electric operation device. It is an exploded perspective view of an electric operation device. It is a perspective view of a gear with a clutch mechanism. It is an exploded perspective view of the gear with a clutch mechanism. It is a top view of the gear with a clutch mechanism for showing the locking part locked by the locked part. It is a perspective view of a 2nd transmission piece part. FIG. 4 is a partially cutaway front view of the drainage plug device and the like when a force is applied to a support shaft from which a plug lid is removed in order to manually switch a drainage port from an open state to a closed state. In another embodiment, it is a partially broken front view of a drainage plug device etc. at the time of applying a force to a plug lid in order to switch a drainage port from an open state to a closed state manually. It is an exploded perspective view of a gear with a clutch mechanism in another embodiment. It is a perspective view of the second transmission piece part in another embodiment. It is an exploded perspective view of a gear with a clutch mechanism in another embodiment. It is a partially broken perspective view of the 1st transmission piece part in another embodiment.

  Hereinafter, an embodiment will be described with reference to the drawings. FIG. 1 is a simplified view of a bathroom unit 110 constituting a bathroom, a room 120 other than the bathroom (for example, a kitchen), and an electric drain cock operation system 1 provided corresponding to the bathroom unit 110 and the room 120. It is a figure which shows typically. Prior to the description of the electric drain cock operation system 1, first, a schematic configuration of a bathroom unit 110 and a bathtub 100 as a tank disposed in the bathroom unit 110 will be described.

  As shown in FIGS. 2 and 3, the bathroom unit 110 includes a plurality of side walls (only two side walls are shown in FIGS. 2 and 3) surrounding four sides and a ceiling 111 provided above each side wall. These form the bathroom. The ceiling 111 is provided with an inspection port 112 for inspecting various components and the like arranged behind the ceiling 111. The inspection port 112 is normally closed by the cover 113, but the cover 113 can be removed from the inspection port 112 by pushing the cover 113 upward.

  The bathtub 100 is installed in the bathroom unit 110, and includes a bottom wall portion 101 constituting a bottom surface thereof, and a side wall portion 102 extending upward from an outer edge of the bottom wall portion 101. A drain port 103 (see FIGS. 4 and 5) is formed through the bottom wall portion 101. Further, an apron 104 is provided so as to cover the side wall portion 102 located on the washing room 114 side of the bathroom unit 110, and the drive device 30 of the electric operating device 3 described later is always hidden by the apron 104. It has been. However, by removing the apron 104, the drive device 30 can be handled from the washing place 114 side (see FIG. 3). A waterproof pan 105 (see FIG. 1, not shown in FIGS. 2 and 3) is arranged below the bathtub 100.

  Next, the electric drain cock operation system 1 will be described. The electric drain cock operating system 1 includes a drain cock device 2, an electric operating device 3, and an input device 4, as shown in FIG.

  First, the drain plug device 2 will be described. As shown in FIG. 4, the drain plug device 2 includes a drain port member 21, a pipe 22, an attachment member 23, a support shaft mechanism 24, and a plug lid 25.

  The drain port member 21 is formed in a cylindrical shape, and is inserted into the drain port 103 with the center axis of the drain port member 103 and the center axis of the drain port 103 substantially aligned. The drain port member 21 includes a flange portion 211 formed at the upper end thereof so as to protrude radially outward, and a male screw portion 212 formed on the outer periphery below the flange portion 211.

  The pipe 22 includes a cylindrical main body pipe 221 extending in the vertical direction, and a connecting pipe 222 extending in the horizontal direction while being branched from the main body pipe 221.

  The main body pipe 221 is provided to correspond to the drain port 103 and is a part that forms a flow path of drain water flowing through the drain port 103. The main body tube 221 is provided with a female screw portion 221A on the inner periphery of one end (upper end) to which the male screw portion 212 can be screwed. The male screw portion 212 is screwed into the female screw portion 221A, and the bottom wall portion 101 is sandwiched between the flange portion 211 and the upper end surface of the pipe 22, so that the drain port member 21 and the pipe 22 are connected, Both are attached to bathtub 100. On the other hand, although not shown, the other end of the main body tube 221 is connected to the waterproof pan 105.

  In the present embodiment, between the upper surface of the bathtub 100 (bottom wall portion 101) and the drain member 21 (flange portion 211), and the upper end surface of the pipe 22 and the lower surface of the bathtub 100 (bottom wall portion 101). An annular seal member 26 formed of an elastically deformable material (for example, resin or rubber) and having a U-shaped cross section is disposed so as to be interposed therebetween. The sealing member 26 prevents water leakage from between the drain port member 21 and the pipe 22 and the bathtub 100.

  The connection pipe 222 is a portion to which a guide cylinder 61 for guiding a release wire 62 described later from the electric operating device 3 side to the drain plug device 2 side is connected. Note that one end of the guide cylinder 61 is connected to the connection pipe 222 in a watertight manner by fitting the connection pipe 222 to the inner periphery thereof. On the other hand, a rubber bush 63 having a through hole at the center is fitted into the other end of the guide cylinder 61, and the through hole of the rubber bush 63 is close to a driving device 30 of the release wire 62 which will be described later. The located portion (the portion that has come out of the driving device 30) is inserted (see FIG. 6). The rubber bush 63 and the release wire 62 are in close contact with each other without any gap, and as a result, the other end of the guide cylinder 61 is closed by the rubber bush 63 and the release wire 62 in a watertight manner.

  The portion of the release wire 62 distant from the drive device 30 may be inserted into the through hole of the rubber bush 63 by shortening the guide cylinder 61, for example. That is, the length of the release wire 62 between the driving device 30 and the rubber bush 63 may be longer. In this case, the handling of the driving device 30 is improved, and the degree of freedom relating to the installation position of the driving device 30 and the workability relating to the installation can be further improved.

  The attachment member 23 is for holding the support shaft mechanism 24 at the center of the internal space of the drain port member 21 and the pipe 22 (the main pipe 221), that is, at the center of the drain channel. The attachment member 23 includes a cylindrical holding portion 231 located inside, a cylindrical outer ring portion 232 provided concentrically with the holding portion 231 outside the holding portion 231, a holding portion 231 and an outer ring. And a plurality of connecting portions 233 for connecting the portions 232. The holding unit 231 holds the support shaft mechanism 24 with the support shaft mechanism 24 inserted through the inner periphery thereof. Further, the outer ring portion 232 is a portion to be attached to the drain port member 21, and the outer ring portion 232 is fixed to the inner periphery of the drain port member 21, so that the holding portion 231 and thus the support shaft held by the same A mechanism 24 is located at the center of the drain passage.

  The support shaft mechanism 24 is for moving the stopper 25 up and down, and includes a tubular portion 241 and a support shaft 242. The cylindrical portion 241 has a cylindrical shape and is held by the holding portion 231 in a state in which it cannot move up and down. The support shaft 242 supports the stopper 25 at its upper part, is disposed on the inner periphery of the tubular portion 241, and is capable of moving up and down with respect to the tubular portion 241. Further, the support shaft 242 does not have a special mechanism for absorbing a load applied to a second transmission piece portion 3332 described later when a downward force is applied to the stopper 25 in the upwardly moved state. It has been. The “special mechanism” refers to a mechanism exclusively provided for a purpose of absorbing a load, such as a shock absorber having a spring.

  In addition, one end of a release wire 62 is connected to the support shaft mechanism 24. More specifically, the release wire 62 includes a long tubular outer tube 621 and an inner wire 622 provided on the inner periphery of the outer tube 621 and made of, for example, a metal core coil or a stranded wire. . Then, one end of the outer tube 621 is fixed to the cylindrical portion 241, and one end of the inner wire 622 can be in contact with the lower portion of the support shaft 242. A flange-shaped flare (not shown) is provided at the other end of the outer tube 621, and the flare is attached to the drive device 30 described later.

  Further, a cylindrical stopper member (not shown) is fixed to the other end of the inner wire 622, and the stopper prevents the other end of the inner wire 622 from being displaced by a displacement movement section 35 described later. Is connected to The inner wire 622 is configured to reciprocate with respect to the outer tube 621 in accordance with the displacement of the displacement movement unit 35, and the support shaft 242 is configured to move up and down with the reciprocal movement of the inner wire 622. . Specifically, when the inner wire 622 moves forward (moves from the driving device 30 side to the drain plug device 2 side), the support shaft 242 moves upward so as to be pushed up by the inner wire 622. On the other hand, when the inner wire 622 moves back in this state, the support shaft 242 moves down by its own weight. Note that one end of the inner wire 622 may be connected to the support shaft 242 so that when the inner wire 622 moves back, the support shaft 242 is moved downward by being pulled by the inner wire 622. .

  The plug lid 25 includes a disk-shaped plug lid main body 251, and an annular packing portion 252 provided on the outside of the back side of the plug lid main body 251. The cap 25 is attached to the support shaft 242 by inserting and locking the tip of the support shaft 242 into a cylindrical portion provided at the center of the back side of the cap body 251. The stopper 25 can be detached from the support shaft 242 by applying a force in a direction of pulling out the support shaft 242 from the cylindrical portion. That is, the stopper lid 25 can be relatively easily attached to and detached from the support shaft 242 without using a special tool or the like.

  The packing portion 252 is formed of an elastically deformable material (e.g., rubber or resin), and is separated from the drain port member 21 when the support shaft 242 is moved upward. As a result, the drain port 103 is opened (see FIG. 5). On the other hand, when the support shaft 242 is moved down, the stopper 25 is located at a predetermined closed position, and the entire outer periphery of the packing portion 252 contacts the drain port member 21. As a result, the drain port 103 is closed (see FIG. 4).

  Next, the electric operation device 3 will be described. The electric operation device 3 is a device that can be energized to remotely control the stopper 25. More specifically, the electric operating device 3 applies a driving force generated by energization to the support shaft 242 and the stopper lid via the inner wire 622. This device is provided to the side 25 to move the stopper 25 up and down.

  The electric operation device 3 includes a drive device 30 and a control device 39 (see FIGS. 1 and 3). In the present embodiment, the driving device 30 is attached to a fixed member (not shown) provided between the side wall portion 102 of the bathtub 100 and the apron 104, and a later-described operated portion 341A faces the apron 104 side. It is arranged in a state. 6 to 9, the drive device 30 includes a case 31, a motor 32, a transmission body 33, a manual operation corresponding unit 34, a displacement movement unit 35, and a first magnetic sensor 361 as a position detection sensor. And a second magnetic sensor 362.

  The case 31 holds the motor 32, the transmission body 33, the displacement motion section 35, and the like, and functions as an attachment section when attaching the drive device 30 to the fixed member. The case 31 includes a first case component 311, a second case component 312, and a third case component 313, and is formed by assembling the case components 311 to 313.

  The first case component 311 includes a base 311A having a flat plate shape as a whole, a motor housing wall 311B that is erected on the base 311A and the motor 32 is housed therein, and a erected on the base 311A. A transmission body housing wall 311C for housing the transmission body 33, and a sensor housing wall 311D recessed in the base 311A and housing the first magnetic sensor 361 and the second magnetic sensor 362 therein are provided.

  A hole 311E (see FIG. 9) through which a gear 333 with a clutch mechanism described later is inserted is formed in a portion of the base 311A located inside the transmission body housing wall 311C. The housing space of the motor 32 in the motor housing wall portion 311B and the housing space of the transmission body 33 in the transmission body housing wall portion 311C are in communication with each other. And the first gear 332A are in a meshed state. Further, the sensor housing wall portion 311D is configured to be arranged on the side of the displacement movement section 35.

  The second case component 312 functions as a cover for covering the internal spaces of the above-described housing walls 311B to 311D by being attached to the base 311A. In the present embodiment, the second case component 312 is configured to be screwed and fixed to the first case component 311. However, the first case component 312 is formed by another method (for example, snap fit). It may be configured to be attached to the unit 311.

  The third case component portion 313 holds the manual operation corresponding portion 34 and the displacement movement portion 35, and functions as a portion to be attached to the other end of the outer tube 621. The third case component 313 includes a base 313A having a through-hole 313D into which the manual operation corresponding part 34 is inserted and installed, and a plurality of flat or curved plate-shaped members erected on the base 313A. It has a displacement motion housing wall 313B made of a wall, and a concave tube mounting portion 313C provided at the other end of the outer tube 621 and in which the flare portion is arranged.

  A step 313E is formed in a portion of the base 313A where the through hole 313D is formed, and a C ring 343 described later of the manual operation corresponding section 34 is locked to the step 313E. . This prevents the manual operation corresponding portion 34 from coming off from the third case component 313.

  In addition, the displacement movement section housing wall 313B houses therein the displacement movement section 35 in a reciprocating manner. Further, a pinion 341C and a gear 333 with a clutch mechanism, which will be described later, are accommodated in the displacement motion housing wall 313B, respectively, and pinion 341C arranged coaxially with the central axis of through hole 313D is sandwiched. The displacement motion part 35 and the gear 333 with a clutch mechanism are arranged in a positional relationship.

  Further, the third case component 313 can be attached to the first case component 311. By setting the third case component 313 to be attached to the first case component 311, the portion where the displacement motion part 35 and the like are arranged in the displacement motion part housing wall 313 </ b> B is in a state where the lid is covered. . In addition, the third case component 313 is attached to the first case component 311 to prevent the other end (the flare portion) of the outer tube 621 disposed on the tube attached portion 313C from dropping off. Thus, the outer tube 621 can be connected to the case 31 in a stable state.

  The motor 32 is a drive source for electrically opening and closing the drain 103. The motor 32 includes a rotatable rod-shaped shaft portion 321, and a flat cable 64 (see FIGS. 6 and 7; a non-flat cable in a power supply (not shown) provided integrally with the control device 39. (Not shown in FIGS. 8 and 9). The motor 32 can rotate the shaft 321 bidirectionally by power supply from the power supply. The cable 64 includes a power supply line (not shown) for supplying power to the motor 32 from the power supply, and a signal line (not shown) for transmitting signals from the magnetic sensors 361 and 362 to the control device 39. Things.

  The transmission body 33 is a mechanism for transmitting the driving force due to the rotation of the shaft 321 to the stopper 25, and includes a worm 331, a reduction gear group 332, and a gear 333 with a clutch mechanism.

  The worm 331 is configured by a cylindrical worm, and is fixed to the shaft 321. The worm 331 rotates together with the shaft 321.

  The reduction gear group 332 is for transmitting the driving force generated by the rotation of the shaft portion 321 to the clutch mechanism-equipped gear 333 while reducing the number of rotations. In the present embodiment, the reduction gear group 332 is a first gear constituted by two-stage gears (two gears having different numbers of teeth are arranged along the rotation axis direction of the gears). 332A, a second gear 332B, a third gear 332C, and a fourth gear 332D. In the present embodiment, the first gear 332A corresponds to a “gear meshed with the worm 331”.

  The first gear 332 </ b> A and the third gear 332 </ b> C are coaxially arranged, and are supported by a rod-shaped first shaft 371 in a freely rotatable state. Both ends of the first shaft portion 371 are provided with a receiving portion (not shown) provided on the second case component 312 and a receiving member (not shown) fixed at a predetermined position of the third case component 313. Not supported by the receiver.

  The second gear 332 </ b> B and the fourth gear 332 </ b> D are coaxially arranged, and are supported by a rod-shaped second shaft 372 in a freely rotatable state. The second shaft portion 372 is supported by a receiving portion (not shown) provided on the second case component 312 and a receiving portion (not shown) provided on the base 311A of the first case component 311.

  In the first gear 332A, the larger gear is meshed with the worm 331, and the smaller gear is meshed with the larger gear in the second gear 332B. In the second gear 332B, the third gear 332C, and the fourth gear 332D, the gears are meshed so that the driving force from the motor 32 is transmitted in this order. From the gear to the larger gear. For example, the driving force is transmitted from the smaller gear in the second gear 332B to the larger gear in the third gear 332C meshed with this gear.

  Further, in the present embodiment, the stopper mechanism 38 is configured by a self-lock mechanism including the worm 331 and the first gear 332A meshed with the worm 331. According to the stopper mechanism 38, while the first gear 332A can be rotated by rotating the shaft portion 321, the rotation of the first gear 332A due to the force applied from the second gear 332B side can be restricted.

  The gear with a clutch mechanism 333 has an appearance like a two-stage gear like the gears 332A to 332D, is arranged coaxially with the first gear 332A and the third gear 332C, and has the first shaft portion 371. Supported in a freely rotatable state. The gear 333 with the clutch mechanism is in a state in which the smaller gear of the fourth gear 332D is meshed with the larger gear, and a pinion 341C described later is meshed with the smaller gear. The detailed configuration of the gear 333 with a clutch mechanism will be described later.

  The manual operation corresponding section 34 includes a rotating section 341, a cylindrical outer cylinder section 342, and a C-ring 343. The rotating section 341 includes an operated section 341A, an intermediate section 341B, and a pinion 341C, and these are arranged coaxially in this order.

  The operated part 341A is a part to be manually operated when the stopper 25 is to be moved up and down when an abnormality such as a power failure or a failure occurs. The operated portion 341A is provided at one end of the rotating portion 341 and has a disk shape. Further, as described above, the operated portion 341A is arranged so as to face the apron 104 side, and when the apron 104 is removed, it faces the washing place 114 side. Therefore, by removing the apron 104, the operated portion 341A can be easily manually operated from the washing place 114 side. In the present embodiment, a protruding knob is provided on the operated portion 341A in order to make the manual operation easier.

  In addition, a load generated by manually operating the operated portion 341A is configured to be applied to a later-described second transmission piece portion 3332 via a pinion 341C without passing through a later-described first transmission piece portion 3331. ing.

  The intermediate portion 341B has a column shape with a smaller diameter than the operated portion 341A, and is inserted through the outer cylindrical portion 342.

  The pinion 341C has a function of transmitting the driving force from the motor 32 and the driving force generated by manually operating the operated portion 341A to the displacement movement portion 35. The pinion 341 </ b> C is provided at the other end of the rotating part 341, and includes a plurality of teeth provided on the outer periphery of the rotating part 341. The pinion 341C is meshed with a tooth 351 described later provided on the displacement movement section 35.

  The C-ring 343 is fitted in a groove located between the intermediate portion 341B and the pinion 341C with the intermediate portion 341B inserted through the outer cylindrical portion 342. As a result, the rotating portion 341, the outer cylindrical portion 342, and the C-ring 343 are put together without being separated.

  The displacement movement section 35 is configured by a rack including a plurality of teeth 351 directly meshed with the pinion 341C. By the rotation of the pinion 341C, the displacement motion section 35 reciprocates between a predetermined first position and a predetermined second position.

  In addition, a cylindrical magnet 352 is attached to the displacement motion section 35. The position of the magnet 352 changes in accordance with the displacement of the displacement motion section 35.

  Further, as described above, the other end of the inner wire 622 is connected to the displacement movement section 35, and the forward movement of the displacement movement section 35 causes the inner wire 622 to move forward, and the displacement movement section 35 returns. The movement causes the inner wire 622 to return.

  The first magnetic sensor 361 and the second magnetic sensor 362 are sensors for detecting magnetism generated by the magnet 352, and include, for example, a Hall element. The first magnetic sensor 361 and the second magnetic sensor 362 are fixed to the sensor housing wall 311D on the side of the displacement movement unit 35 at a predetermined interval along the reciprocating movement direction of the displacement movement unit 35. I have. The two magnetic sensors 361 and 362 are connected to the control device 39 via the signal lines of the cable 64, respectively, and detect the magnetism generated by the magnets 352, so that the position of the displacement motion unit 35 and thus the drain port The open / closed state of 103 is detected.

  In the present embodiment, when the drain port 103 is in the open state and the displacement motion section 35 is located at the first position, the magnetism of the magnet 352 is detected by the first magnetic sensor 361, On the other hand, the magnetism of the magnet 352 is detected by the second magnetic sensor 362 when the drain port 103 is closed and the displacement motion section 35 is located at the second position. When detecting the magnetism of the magnet 352, the first magnetic sensor 361 and the second magnetic sensor 362 output a magnetic detection signal to the control device 39 via the signal line. Note that the magnetic detection signal is output to the control device 39 every fixed short time.

  Next, prior to the description of the control device 39, the input device 4 will be described first. The input device 4 is operated by a user when the drain port 103 is opened and closed by electric power. In the present embodiment, as shown in FIG. 1, the input device 4 is provided in a room 120 other than the bathroom, and is electrically connected to a water heater 130 for supplying hot water to the bathtub 100. The location of the input device 4 is not particularly limited, and may be provided in a bathroom or the like. Further, the input device 4 may be a portable device, or a plurality of the input devices 4 may be provided.

  Further, the input device 4 includes a display unit for displaying various information such as a liquid crystal and an input unit for information such as a push button. On the display unit, for example, information on the current open / close state of the drain port 103, the temperature of hot water discharged to the bathtub 100, and the like can be displayed. Note that the input unit and the display unit may be configured by a touch panel, and both may be integrated.

  The input unit includes a closing input unit that is operated (for example, pressed) when the drain port 103 is closed, and an opening input unit that is operated when the drain port 103 is opened. Are provided. The closing input unit is configured by, for example, a push button provided with characters such as “closed” or a graphic indicating that the drain 103 is closed. On the other hand, the opening input unit is configured by, for example, a push button provided with characters such as “open” or a graphic indicating that the drain port 103 is in an open state.

  In the present embodiment, transmission and reception of signals between the control device 39 and the water heater 130 are enabled. When the closing input unit is operated (pressed), control is performed from the input device 4 via the water heater 130. A predetermined closing request signal is output to the device 39. On the other hand, when the opening input unit is operated (pressed), a predetermined opening request signal is output from the input device 4 to the control device 39 via the water heater 130. Note that signals may be directly transmitted and received between the input device 4 and the control device 39 without passing through the water heater 130.

  Further, the input unit is provided with a hot water supply input unit that is operated when hot water is supplied to bathtub 100. By operating the input unit at the time of hot water supply, a hot water supply request signal is output from the input device 4 to the water heater 130, so that hot water is supplied from the water heater 130 to the bathtub 100.

  Next, the control device 39 will be described. The control device 39 is a device for controlling the operation of the drive device 30. The control device 39 is arranged on the back side of the ceiling 111, and in the present embodiment, is arranged near the inspection port 112 (within the reach of the inspection port 112) (see FIGS. 2 and 3). Thereby, it is possible to easily perform the installation work of the control device 39 and the repair at the time of failure.

  The control device 39 is configured by, for example, a microcomputer or the like, and grasps the open / closed state of the drain port 103 and controls the operation of the motor 32 according to various types of information input thereto. More specifically, when a magnetic detection signal is input from the first magnetic sensor 361, the control device 39 informs a predetermined storage means (for example, a memory) that the state is “open state” as information regarding the open / close state of the drain port 103. Remember. On the other hand, when the magnetic detection signal is input from the second magnetic sensor 362, the control device 39 stores in the storage means that the drain port 103 is in the “closed state” as information on the open / closed state of the drain port 103. The information on the open / close state of the drain 103 is updated and stored each time a magnetic detection signal is input. Further, information on the open / close state of the drain 103 is input from the control device 39 to the input device 4 via the water heater 130, and the input device 4 outputs information on the open / close state of the drain 103 based on the input information. Is displayed on the display unit.

  Further, when the opening request signal or the closing request signal is input from the input device 4 via the water heater 130, the control device 39 controls the operation of the motor 32 according to the current open / close state of the drain 103. . In other words, when the opening request signal is input, when the control unit 39 determines that the drain port 103 is in the closed state from the information in the storage unit, the control unit 39 moves the shaft 321 from the power source to the motor 32 on one side. To supply power for rotation. Then, after starting the power supply to the motor 32, the control device 39 recognizes that the magnetic detection signal is input from the first magnetic sensor 361 and that the drain 103 has been switched to the open state, and the power supply to the motor 32 from the power source is performed. Is stopped, and the operation of the motor 32 is stopped. As a result, the drain port 103 switches from the closed state to the open state. On the other hand, when the opening request signal is input, the control device 39 causes the power source to supply power to the motor 32 when it is determined from the information in the storage unit that the drain port 103 is already open. Instead, the drain 103 is kept open.

  Further, when the closing request signal is input, when the control unit 39 determines that the drain port 103 is in the open state from the information in the storage unit, the control unit 39 moves the shaft portion 321 to the motor 32 from the power source on the other side. To supply power for rotation. Then, after the power supply to the motor 32 is started, the control device 39 recognizes that the magnetic detection signal is input from the second magnetic sensor 362 and that the drain 103 has been switched to the closed state. The power supply is stopped, and the operation of the motor 32 is stopped. As a result, the drain 103 is switched from the open state to the closed state. On the other hand, when the closing request signal is input, the control device 39 causes the power source to supply power to the motor 32 when it is determined from the information in the storage unit that the drain port 103 is already closed. Instead, the drain 103 is maintained in the closed state.

  As described above, in the control device 39, the rotation direction of the shaft 321 is controlled based on information from the first magnetic sensor 361 and the second magnetic sensor 362 that detect the arrangement position of the displacement motion unit 35.

  In the above description, the power supply to the motor 32 is stopped based on the magnetic detection signal input from the magnetic sensors 361 and 362 when the open / close state of the drain port 103 is switched. The power supply to the motor 32 may be stopped in accordance with the elapsed time and the rotation speed of the shaft portion 321. In the above description, the control device 39 is configured to store the open / closed state of the drain 103 in advance, and to control the operation of the motor 32 based on the stored information when a closing request signal or an opening request signal is input. However, the configuration may be such that when a closing request signal or an opening request signal is input, a magnetic detection signal is received from the magnetic sensors 361 and 362, and the operation of the motor 32 is controlled based on the received content. That is, even when the control device 39 grasps the open / closed state of the drain port 103 in response to the input of the close request signal or the open request signal, the control device 39 controls the operation of the motor 32 based on the grasped open / closed state. Good.

  Next, a detailed configuration of the clutch mechanism-equipped gear 333 will be described. As shown in FIGS. 10 and 11, the clutch-equipped gear 333 is formed by assembling a first transmission piece 3331 and a second transmission piece 3332 that rotate on the same rotation shaft. More specifically, a shaft 3331A provided with a projection 3331B at the tip is provided at the center of the first transmission piece 3331, and the shaft 3331A is formed at the center of the second transmission piece 3332. The first transmission piece 3331 and the second transmission piece 3332 are coaxially assembled by inserting the 3331A and engaging the projection 3331B with the second transmission piece 3332. The first transmission piece 3331 and the second transmission piece 3332 are gears, respectively, and are coaxially arranged, so that the clutch-equipped gear 333 has an appearance like a two-stage gear. .

  The first transmission piece 3331 is meshed with a smaller gear of the fourth gear 332D, and is configured to rotate with the rotation of the shaft 321.

  In addition, the first transmission piece 3331 has a clutch mechanism 3331C outside the shaft 3331A on the root side. The clutch mechanism 3331C is provided with two semicircular arc-shaped bending deformation portions 3331D. The two bending deformation portions 3331D surround the shaft 3331A at a slight distance from the outer peripheral surface of the shaft 3331A. Are provided symmetrically.

  In addition, both the bending deformation portions 3331D have one end connected to the shaft 3331A, while the other end is not particularly supported. As a result, in the direction in which the bending deformation portion 3331D extends (the circumferential direction of the shaft 3331A). At least the central part of the bent portion 3331D is elastically deformed in the radial direction of the shaft 3331A, that is, in the direction orthogonal to the rotation axis of the first transmission piece 3331 and the second transmission piece 3332. In addition, a locking portion 3331E that protrudes outward along a direction perpendicular to the rotation axis is provided corresponding to the central portion of each of the bending deformation portions 3331D.

  The locking portion 3331E is elastically deformable along a direction orthogonal to the rotation axis due to the presence of the bending deformation portion 3331D. The locking portion 3331E is provided at a portion of the first transmission piece 3331 that is inserted into the second transmission piece 3332, and as shown in FIG. Locked to the locked portion 3332B. FIG. 12 is a plan view of the clutch-equipped gear 333 shown in FIG. 10 when viewed from above. In order to facilitate understanding, a dotted pattern is attached to the clutch mechanism 3331C and the engaging portion 3331E. The locked portion 3332B has a diagonal lattice pattern.

  An outer peripheral portion of the second transmission piece portion 3332 is meshed with the pinion 341C, and an inner peripheral portion of the second transmission piece portion 3332 is provided with a locked portion 3332B to which the locking portion 3331E is locked. As illustrated in FIG. 13, the locked portion 3332 </ b> B is configured such that a plurality of depressions that are recessed along a direction orthogonal to the rotation axis of the second transmission piece 3332 are arranged along the rotation direction of the second transmission piece 3332. It has the appearance formed. Usually, the locking portion 3331E is arranged in the depression, and when the first transmission piece portion 3331 rotates with the rotation of the shaft portion 321, a force is applied from the locking portion 3331E to the locked portion 3332B. . Accordingly, the second transmission piece 3332 rotates in the forward or reverse direction according to the operation direction of the first transmission piece 3331. At this time, the stopper mechanism 38 allows the rotation of the first transmission piece 3331 and the second transmission piece 3332 due to the rotation of the shaft 321.

  In the present embodiment, when the drain port 103 is in the closed state, the pinion 341C rotates to one side by rotating the second transmission piece portion 3332 in the positive direction, and the displacement motion portion 35 moves forward. . On the other hand, when the drain port 103 is in the open state, the pinion 341C rotates to the other side by rotating the second transmission piece portion 3332 in the opposite direction, and the displacement motion portion 35 is returned.

  In addition, when a downward load is applied to the stopper 25 at least in a state where the stopper 25 is moved upward (when the drain port 103 is in an open state), the second transmission piece portion 3332 is configured to support the support shaft 242, Through the inner wire 622, the displacement motion section 35, and the pinion 341C, a load in a direction of rotating the self in the reverse direction is applied from the stopper 25 side.

  Here, when a load is applied from the stopper lid 25 to the second transmission piece 3332, the rotation of the first gear 332 </ b> A is restricted by the stopper mechanism 38, and thus the rotation of the first transmission piece 3331 is restricted. You. Therefore, a load is applied to the second transmission piece 3332 in the direction in which the first transmission piece 3331 rotates in the opposite direction to the first transmission piece 3331. As a result, the clutch mechanism 3331C (deflection) is engaged via the locking portion 3331E. A force is applied to the deformed portion 3331D) in a direction of bending and deforming radially inward, that is, a force in a direction in which the locking portion 3331E is not sufficiently locked with the locked portion 3332B. In addition, “the locking portion 3331E is not sufficiently locked with the locked portion 3332B” means, for example, that the locking portion 3331E is in contact with the locked portion 3332B, When the second transmission piece portion 3332 is operated to move the locked portion 3332B, the locking portion 3331E does not move almost or not at all, and the amount of engagement of the locking portion 3331E with the 3332B is not sufficient. This refers to a state in which only the stopping portion 3332B moves (for example, a state in which the locked portion 3332B moves over the locking portion 3331E).

  However, in the present embodiment, by adjusting the elastic modulus of the bending deformation portion 3331D and the shapes of the locking portion 3331E and the locked portion 3332B (for example, the depth of the recess in the locked portion 3332B) and the like, Unless a relatively large load is applied to the stopper 25, the locking of the locking portion 3331E with the locked portion 3332B does not become insufficient. Therefore, the load applied from the stopper lid 25 side to the second transmission piece portion 3332 side is a predetermined amount (for example, the maximum downward load that can be applied from the stored water to the stopper lid 25 when water is stored in the bathtub 100). When the amount is equal to or less than the amount, the locking portion 3331E is maintained in a state in which the locking portion 3331E is sufficiently locked to the locked portion 3332B. Accordingly, the rotation operation of the second transmission piece 3332 is restricted. Therefore, at normal times, it is possible to maintain the stopper lid 38 in a state where the stopper lid 25 is moved upward. The predetermined amount can be appropriately changed according to various conditions such as the amount of water that can be stored in the bathtub 100.

  On the other hand, when the stopper 25 or the support shaft 242 in the upwardly moving state is strongly pushed downward, a load exceeding the predetermined amount is applied from the stopper 25 or the support shaft 242 side to the second transmission piece 3332 side. When it is applied, the clutch mechanism 3331C (the flexure deforming portion 3331D) flexes and deforms relatively large inward in the radial direction, and the latching portion 3331E is not sufficiently latched with the latched portion 3332B. As a result, the second transmission piece 3332 is independent of the first transmission piece 3331 in a state where the rotation is restricted by the stopper mechanism 38 so that the locking portion 3331E gets over the locked portion 3332B. (In the present embodiment, idle in the opposite direction).

  In the clutch mechanism 3331C configured as described above, after a relatively large downward force is applied to the stopper 25 and the support shaft 242 to forcibly lower the stopper 25 and the support shaft 242, the force is reduced. Is released, the support shaft 242 may return slightly (upward).

  Next, the operation in the case where the operation for switching the open / close state of the drain port 103 by electric power is performed in the electric drain cock operation system 1 configured as described above will be described.

  When the drain port 103 is in the closed state, information indicating that the drain port 103 is to be opened is input to the input device 4, and an open request signal is input to the control device 39. Electric power is supplied from the power supply to the motor 32, and the shaft 321 rotates to one side. Thereby, the driving force of the shaft portion 321 is transmitted to the displacement movement portion 35 via the transmission body 33 and the pinion 341C, and the displacement movement portion 35 moves forward from the second position to the first position. Also, at this time, the first transmission piece 3331 rotates, and a force is applied from the locking part 3331E to the locked part 3332B, whereby the second transmission piece 3332 rotates in the forward direction. Then, as the inner wire 622 moves forward together with the displacement movement section 35, the support shaft 242 and the stopper 25 move upward. As described above, the driving force due to the rotation of the shaft 321 is transmitted to the stopper 25 via the transmission body 33 and the support shaft 242. In addition, since the displacement motion section 35 moves forward and is disposed at the first position, the first magnetic sensor 361 outputs a magnetic detection signal. Then, when a magnetic detection signal is input from the first magnetic sensor 361, the control device 39 stops supplying power to the motor 32 from the power supply. As a result, the drain port 103 is switched from the closed state to the open state. The open state of the drain 103 is maintained by the stopper mechanism 38 without supplying power to the motor 32.

  On the other hand, when the drain port 103 is in the open state, information indicating that the drain port 103 is to be closed is input to the input device 4, and a closing request signal is input to the control device 39. As a result, power is supplied from the power supply to the motor 32, and the shaft 321 rotates to the other side. Thereby, the driving force of the shaft portion 321 is transmitted to the displacement movement portion 35 via the transmission body 33 and the pinion 341C, and the displacement movement portion 35 returns from the first position to the second position. At this time, the first transmission piece 3331 rotates, and a force is applied from the locking part 3331E to the locked part 3332B, so that the second transmission piece 3332 rotates in the opposite direction. Then, when the inner wire 622 moves backward together with the displacement movement section 35, the support shaft 242 and the stopper 25 move downward. In addition, the displacement detection section 35 is moved back and is disposed at the second position, so that the second magnetic sensor 362 outputs a magnetic detection signal. Then, when a magnetic detection signal is input from the second magnetic sensor 362, the control device 39 stops supplying power to the motor 32 from the power supply. As a result, the drain port 103 is switched from the open state to the closed state.

  As described above, in the electric drain cock operation system 1 described above, basically, the open / close state of the drain outlet 103 can be switched by the electric operation of the stopper lid 25. On the other hand, as described above, the electric drain cock operating system 1 applies a downward force to the stopper 25 and the support shaft 242 when the stopper 25 and the support shaft 242 move upward and the drain port 103 is in the open state. By applying a load exceeding the predetermined amount from the stopper 25 or the support shaft 242 side to the second transmission piece portion 3332, the locking of the locking portion 3331E with the locked portion 3332B by the clutch mechanism 3331C is prevented. The second transmission piece 3332 can be independently operated in the reverse direction with respect to the first transmission piece 3331 whose operation is restricted by the stopper mechanism 38 while being in a sufficient state, and thus the stopper 25 and the support shaft 242 can be operated. Can be moved downward. Therefore, by using this configuration, it is possible to manually switch the drain port 103 from the open state to the closed state when an abnormality such as a power failure or failure occurs.

  In other words, if an abnormality occurs when the stopper lid 25 is moved upward and the drain port 103 is in the open state, and it becomes impossible to close the drain port 103 by electric operation, the state shown in FIG. As described above, after removing the stopper 25 from the support shaft 242, a relatively large downward force is applied to the support shaft 242 to move the stopper 25 to the second transmission piece 3332 from the stopper 25 side (the support shaft 242 side). And a load exceeding the predetermined amount is applied. As a result, the clutch mechanism 3331C (the bending portion 3331D) is bent and deformed, and the locking of the locking portion 3331E with the locked portion 3332B is in an insufficient state, and the operation of the first transmission piece is restricted by the stopper mechanism 38. The second transmission piece portion 3332 operates independently (idle) in the opposite direction with respect to 3331. As a result, the support shaft 242 moves down to a position where the stopper 25 can be placed in the closed position. The stopper 25 is detached from the support shaft 242 in advance in order to prevent a situation where the support shaft 242 does not move down sufficiently due to the stopper 25 coming into contact with the drain member 21 or the like. After that, the drain lid 103 can be switched from the open state to the closed state by reattaching the stopper 25 to the lowered support shaft 242 and disposing the stopper to the closed position. In addition, with the rotation of the second transmission piece portion 3332, the displacement movement portion 35 moves from the first position to the second position. Therefore, when recovery from a power failure or a failure state, a magnetic detection signal is input from the second magnetic sensor 362 to the control device 39, and the control device 39 correctly grasps that the drain 103 is in the closed state. can do.

  Further, in the present embodiment, it is possible to manually switch the open / close state of the drain port 103 by operating the operated section 341A. That is, when the drain port 103 is in the closed state, a load is applied to the operated portion 341A in a direction of rotating the operated portion 341A to one side. At this time, a load is applied to the second transmission piece 3332 meshed with the pinion 341C, but by applying a load exceeding the predetermined amount to the second transmission piece 3332, the clutch mechanism 3331C causes The locking portion 3331E is not sufficiently locked with the locked portion 3332B, and the second transmission piece 3332 is independently moved in the forward direction with respect to the first transmission piece 3331 whose operation is restricted by the stopper mechanism 38. Rotate (slip). Then, the rotation of the second transmission piece portion 3332 causes the pinion 341C to rotate, and the displacement motion portion 35 and the inner wire 622 move forward. As a result, the drain shaft 103 can be switched from the closed state to the open state by moving the support shaft 242 and the stopper 25 upward. Note that, with the rotation of the second transmission piece portion 3332, the displacement movement portion 35 moves from the second position to the first position. Therefore, when recovery from a power failure or a failure state, a magnetic detection signal is input from the first magnetic sensor 361 to the control device 39, and the control device 39 correctly grasps that the drain 103 is in the open state. can do.

  On the other hand, when the drain port 103 is in the open state, a load is applied to the operated part 341A in a direction to rotate the operated part 341A to the other side. At this time, a load is applied to the second transmission piece 3332 meshed with the pinion 341C, but by applying a load exceeding the predetermined amount to the second transmission piece 3332, the clutch mechanism 3331C causes The locking of the locking portion 3331E with the locked portion 3332B is in an insufficient state, and the second transmission piece 3332 is independent of the first transmission piece 3331 whose operation is restricted by the stopper mechanism 38 in the reverse direction. Rotate (slip). Then, the rotation of the second transmission piece portion 3332 causes the pinion 341C to rotate, and the displacement motion portion 35 and the inner wire 622 move back. As a result, the drain shaft 103 can be switched from the open state to the closed state by lowering the support shaft 242 and the stopper 25. In addition, since the displacement motion part 35 moves from the first position to the second position, when recovery from a power failure or a failure state, a magnetic detection signal is input from the second magnetic sensor 362 to the control device 39, The control device 39 can accurately grasp that the drain port 103 is in the closed state.

  As described in detail above, according to the present embodiment, when the load applied from the plug lid 25 to the second transmission piece 3332 is equal to or less than a predetermined amount, the first transmission associated with the load is performed by the stopper mechanism 38. The movement of the piece 3331 and the second transmission piece 3332 can be restricted. Accordingly, by stopping the second transmission piece portion 3332 in the forward direction by the stopper mechanism 38, the stopper lid 25 is moved upward while the motor 32 is not energized. 103 is left open). Therefore, electric power for maintaining the drain 103 in the open state can be made unnecessary, and power consumption can be reduced and safety can be effectively improved.

  Further, in the present embodiment, when the stopper 25 moves upward and the drain port 103 is in the open state, the stopper 25 is directed downward toward the stopper 25 so that a load exceeding the predetermined amount is applied to the second transmission piece 3332. By applying a force, the second transmission piece portion 3332 can be independently operated in the opposite direction (in the present embodiment, idle). Therefore, by using this configuration, the stopper 25 can be manually moved down. Therefore, even if the power operation of the plug lid 25 becomes impossible due to a power failure, a failure of the motor 32, or the like, the drain port 103 can be manually switched from the open state to the closed state.

  Also, even if the user does not know or forget that the stopper 25 can be moved down manually, when the stopper 103 is pressed downward, the drain 103 is naturally closed. It is very convenient for the user because it is possible to understand that the stopper 25 can be moved down manually by simply taking an action that is easy to come up with.

  Further, when a downward force is applied to the stopper lid 25 to apply a load to the second transmission piece 3332, the second transmission piece 3332 operates independently (idle) with respect to the first transmission piece 3331. Therefore, breakage and deformation of components such as the motor 32 and the transmission body 33 due to the application of the load can be more reliably prevented. Therefore, even when the drain port 103 is manually closed, normal use is not hindered after restoration from a power failure.

  Also, by removing the stopper 25 from the support shaft 242 and applying a downward force to the support shaft 242, the support shaft 242 can be moved down to a position where the stopper 25 can be arranged to the closed position. . Therefore, even if the support shaft 242 slightly returns after the downward movement, the support shaft 242 can be sufficiently moved downward to more reliably close the drain port 103. Further, since the support shaft 242 is moved down after the stopper 25 is removed, the stopper 25 does not come into contact with the drain member 21 and the support shaft 242 can be easily moved down sufficiently. Become.

  In addition, in the present embodiment, by manually operating the operated part 341A and applying a load exceeding the predetermined amount to the second transmission piece 3332, the operation of the first transmission piece is restricted by the stopper mechanism 38. The second transmission piece 3332 can be independently operated in the forward or reverse direction with respect to the 3331. Therefore, not only is the second transmission piece 3332 operated in the reverse direction to close the drain port 103, but also the second transmission piece section 3332 is operated in the normal direction to open the drain port 103. It is also possible to freely switch the open / close state of the drain 103 manually at the time of a power failure or the like. Thereby, the convenience for the user can be improved.

  In addition, since the operated portion 341A is rotated by manual operation, the electric operation device 3 should be sufficiently small in comparison with a case where an operated portion capable of reciprocating in a linear direction is provided. Can be. As a result, the degree of freedom related to the installation of the electric operation device 3 can be sufficiently improved.

  Further, the stopper mechanism 38 can be realized by the self-locking effect provided by the worm 331 and the first gear 332A meshed with the worm 331. Therefore, the stopper mechanism 38 can be simplified, and the electric operating device 3 can be more reliably prevented from becoming complicated and increasing the manufacturing cost.

  Further, since the displacement movement unit 35 is disposed at the first position or the second position according to the open / close state of the drain port 103, the actual position of the drain port 103 is detected by detecting the position of the displacement movement unit 35. The open / closed state can be accurately grasped. Therefore, when the open / close state of the drain port 103 is switched by electric power, the shaft portion 321 can be rotated in an appropriate direction according to the actual open / close state of the drain port 103. Thus, it is possible to more reliably prevent damage to components due to an incorrect rotation direction of the shaft portion 321. Further, after the drain port 103 is manually closed, normal use is possible without taking any special measures, and the convenience for the user can be further enhanced.

  Further, the clutch mechanism 3331C includes a bending portion 3331D that allows the locking portion 3331E to be elastically deformable. The clutch mechanism 3331C deforms the bending portion 3331D to change the locking portion 3331E to the rotation shaft side of the first transmission piece portion 3331 and the like. By elastically deforming (moving) the locking part 3331E with respect to the locked part 3332B, the locking state can be made insufficient. Therefore, the clutch mechanism 3331C can be realized with a very simple configuration, and the complexity of the electric operating device 3 and the increase in manufacturing cost can be suppressed more effectively.

  Further, the support shaft 242 does not include a special mechanism for absorbing a load applied to the second transmitting piece 3332 when a downward force is applied to the stopper 25 in the upwardly moved state. That is, the support shaft 242 does not include a shock absorber or the like. Therefore, increase in manufacturing cost can be more effectively suppressed. Further, it is possible to prevent an increase in the diameter of the support shaft 242 due to the provision of the special mechanism, and as a result, it is possible to secure a larger water flow area in the flow path of the drainage provided with the support shaft 242.

  Further, even if a special mechanism such as a shock absorber is not provided, when the overload is applied to the stopper lid 25 by the clutch mechanism 3331C, the second transmission piece 3332 rotates independently in the opposite direction, so that the transmission is performed. Breakage and deformation of the body 33, the motor 32, and the like can be more reliably prevented.

  Note that the present invention is not limited to the content described in the above embodiment, and may be implemented as follows, for example. Of course, other application examples and modifications not illustrated below are naturally possible.

  (A) In the above embodiment, when the drain port 103 is manually switched from the open state to the closed state at the time of an abnormality such as a power failure, the cap 25 is removed from the support shaft 242 and a force is applied to the support shaft 242. An example of addition is shown. On the other hand, when the stopper 25 is moved upward and the outlet 103 is open, the outlet 103 can be manually closed only by applying a downward force to the stopper 25. May be configured. This configuration adjusts, for example, the shapes of the cap main body 251 and the packing part 252, and adjusts the relative positional relationship between the cap 25 and a member located around the cap 25 such as the drain port member 21. This can be realized by configuring the support shaft 242 to sufficiently move downward when a downward force is applied to the stopper 25.

  In this configuration, when the drain port 103 is manually switched from the open state to the closed state, a relatively large downward force is applied to the stopper 25 as shown in FIG. A load exceeding the predetermined amount is applied to the transmission piece 3332 (see FIGS. 8, 9, 11, and 12). As a result, similarly to the above-described embodiment, the clutch mechanism 3331C (the bending portion 3331D) is bent and deformed, and the locking of the locking portion 3331E with respect to the locked portion 3332B is insufficient, and the operation is restricted by the stopper mechanism 38. The second transmission piece portion 3332 operates independently (idle) in the reverse direction with respect to the first transmission piece portion 3331 that is performed. As a result, the water outlet 103 can be switched from the open state to the closed state by moving the stopper lid 25 downward.

  According to this configuration, the user presses the stopper lid 25 downward, that is, by simply taking an action that can be easily conceived when trying to close the drain port 103, thereby changing the drain port 103 from the open state to the closed state. Can be switched intuitively. Further, even if the user does not know or forgets that the drain port 103 can be manually switched to the closed state by pressing the stopper 25, as described above, it is naturally easy to come up with an idea. By taking an action, the drain 103 can be manually closed, which is very convenient for the user.

  (B) In the gear 333 with the clutch mechanism in the above embodiment, a locked portion 3332B is provided on the inner periphery of the second transmission piece 3332, and is inserted into the second transmission piece 3332 of the first transmission piece 3331. It is configured such that a locking portion 3331E is provided at the part to be locked. On the other hand, as shown in FIGS. 16 and 17, in the gear 333 with the clutch mechanism, a locking portion 3333E is provided on the inner periphery of the first transmission piece 3333, and the first transmission piece 3334 of the second transmission piece 3334 is provided. A locked portion 3334B to which the locking portion 3333E is locked may be provided at a portion inserted through the piece portion 3333. The locked portion 3334B is formed to project outward, and the locked portion 3334B can be elastically deformed along a direction orthogonal to the rotation axis of the first transmission piece 3333 and the second transmission piece 3334. A clutch mechanism 3334C is constituted by two bending deformation portions 3334D provided on the second transmission piece 3334, and when a relatively large load is applied to the second transmission piece 3334 from the stopper 25, When the locking portion 3333E is not sufficiently locked with the locked portion 3334B due to the bending deformation of the mechanism 3334C (the bending deformation portion 3334D), the second transmission piece portion 3334 is moved relative to the first transmission piece portion 3333. You may comprise so that it may operate independently (idle).

  In this case, similarly to the above embodiment, the clutch mechanism 3334C can be realized with a very simple configuration, and the complexity of the electric operating device 3 and the increase in manufacturing cost can be suppressed more effectively. .

  (C) In the above embodiment, the clutch mechanism 3331C is provided on the gear 333 with a clutch mechanism, but the object on which the clutch mechanism is provided may be changed as appropriate. For example, a clutch mechanism according to the same technical idea as in the above embodiment may be provided in any of the first gear 332A to the fourth gear 332D.

  (D) In the above embodiment, the first transmission piece 3331 and the second transmission piece 3332 are configured to rotate, but the first transmission piece and the second transmission piece may reciprocate. You may comprise. Further, one of the first transmission piece and the second transmission piece may be configured to rotate (for example, a gear), and the other may be configured to reciprocate the other (for example, a rack in which the gear meshes). .

  (E) In the above embodiment, the clutch mechanism 3331C constituted by the bending deformation portion 3331D is described, but the clutch mechanism is not limited to this. Therefore, for example, while the locking portion is always pressed against the locked portion, it is compressed and deformed when a relatively large load is applied from the stopper 25 to the second transmitting piece. Alternatively, the clutch mechanism may be configured by a spring member that makes the locking of the locking portion to the locked portion insufficient. More specifically, as shown in FIGS. 18 and 19, in the gear 333 with the clutch mechanism, a portion of the first transmission piece 3335 that is inserted into the second transmission piece 3332 has a bottomed hole. 3335F is provided, and at the hole 3335F, a columnar engagement member is engaged with a locked portion 3332B (see FIG. 13) provided on the second transmission piece portion 3332 (see FIGS. 11 and 13). The stop portion 3335E is inserted and installed, and a clutch mechanism 3335C is configured by a spring member 3335D provided between the bottom of the hole 3335F and the locking portion 3335E, and the first transmission is performed by the clutch mechanism 3335C (spring member 3335D). The locking portion 3335E may be configured to be elastically deformable along a direction orthogonal to the rotation axis of the piece 3335 or the second transmission piece 3332.

  In the case of such a configuration, it is possible to make the clutch mechanism 3335C (the spring member 3335D) more unlikely to be damaged, and to more reliably prevent the failure of the electric operating device 3.

  (F) In the above embodiment, the operated part 341A is provided, but the operated part 341A may not be provided.

  In the above-described embodiment, the operated portion 341A is configured to be rotated, but for example, the operated portion may be reciprocated. For example, a reciprocally movable slide knob connected to the displacement movement unit 35 may be provided as an operated part, and the open / close state of the drain port 103 may be manually switched by manually reciprocating the slide knob. .

  (G) In the above embodiment, the displacement movement section 35 is configured to reciprocate, but the displacement movement section may be configured to be rotatable.

  (H) In the above embodiment, when the displacement movement section 35 moves and the rotating section 341 rotates at the time of the electric operation, the stopper lid 25 moves up and down due to the movement of the displacement movement section 35 and the drain port 103 is closed. The open / close state is configured to be switched. On the other hand, the opening / closing state of the drain port 103 may be switched by moving the stopper lid 25 up and down by turning the turning part 341. For example, a protrusion is provided near the outer periphery of the end surface of the rotating portion 341 (the surface corresponding to the operated portion 341A), and the protrusion is provided in the pipe 22 (drain passage) to directly or indirectly attach the stopper 25. The protrusion may be moved up and down by the rotation of the rotating part 341 to move the stopper 25 up and down to switch the open / close state of the drain port 103. . In addition, a rotating body having a projection installed in the pipe 22 (a drain passage) is provided separately from the rotating part 341, and a driving force due to the rotation of the rotating part 341 is transmitted to the rotating body. By rotating the rotating body, the protrusion may move up and down, and the stopper 25 directly or indirectly supported by the protrusion may move up and down.

  (I) The arrangement positions of the drive device 30 and the control device 39 in the above embodiment are merely examples, and the arrangement positions of the drive device 30 and the control device 39 may be changed as appropriate.

  (J) In the above embodiment, the stopper mechanism 38 includes the worm 331 and the first gear 332A meshed with the worm 331. However, the stopper mechanism can maintain the stopper 25 in a state where the stopper 25 is moved upward. At the same time, when a downward force exceeding the predetermined amount is applied to the stopper 25, the first transmission piece can be operated independently of the first transmission piece. What is necessary is just to be able to regulate movement of a part. Therefore, the configuration of the stopper mechanism is not limited to the configuration described in the above embodiment. For example, the configuration is provided on the transmission path of the driving force between the shaft portion and the first transmission piece portion so that the reduction ratio becomes sufficiently large. The stopper mechanism may be constituted by gears (reduction gear group, planetary gears, etc.) set to.

  (K) In the above embodiment, the stopper lid 25 is configured such that the distal end of the support shaft 242 is inserted into the cylindrical portion of the stopper lid main body 251 and locked, but the support shaft 242 is The stopper lid 25 may be configured so as to be simply placed on the tip end of the stopper (so that the support shaft 242 is not locked). In this case, attachment and detachment of the stopper 25 with respect to the support shaft 242 can be performed very easily, and the drain port 103 can be more easily manually closed.

  (L) In the above embodiment, when the drain port 103 is manually switched to the closed state, after the support shaft 242 is moved down, the stopper 25 is re-attached to the support shaft 242 and the closed position is set to the closed position. The stopper 25 is not necessarily attached to the support shaft 242 when the stopper 25 is arranged at the closed position. For example, when the stopper 25 is placed in the closed position, the stopper 25 is separated from the tip of the support shaft 242, or the stopper 25 is placed on the tip of the support shaft 242. May be configured.

  (M) In the above embodiment, the drain port 103 is closed by the stopper lid 25 (the packing part 252) contacting the drain port member 21, but the stopper lid 25 (the packing part 252). The drain port 103 may be closed by contacting the bottom wall part 101. That is, what is set so that the stopper 25 comes in contact with the drain port 103 when the drain port 103 is closed may be the drain port member 21 or the bottom wall 101. Good.

  (N) In the above embodiment, the bathtub 100 is illustrated as the bathtub, but the bathtub to which the technical idea of the present invention can be applied is not limited to the bathtub. Therefore, for example, the technical idea of the present invention may be applied to other tank bodies such as a washbasin and a kitchen sink.

  DESCRIPTION OF SYMBOLS 3 ... Electric operation device, 25 ... Pot lid, 32 ... Motor, 33 ... Transmission body, 35 ... Displacement movement part, 38 ... Stopper mechanism, 100 ... Bathtub (tank body), 103 ... Drain outlet, 242 ... Support shaft, 321, a shaft portion, 331, a worm, 332A, a first gear (gear meshed with the worm), 361, a first magnetic sensor (position detection sensor), 362, a second magnetic sensor (position detection sensor), 3331, 3333 , 3335... First transmission piece, 3332, 3334... Second transmission piece, 3331E, 3333E, 3335E... Locking part, 3332B, 3334B. ... Deflection deformation part.

Claims (8)

An electric operation device for remotely controlling a stopper for opening and closing a drain port formed in a tank body,
A motor having a shaft portion rotatable by energization,
A transmission body that transmits a driving force due to rotation of the shaft to the stopper side.
The transmitter is
A first transmission piece having a predetermined locking portion and operating with rotation of the shaft,
The locking portion has a locked portion to be locked, and a force is applied from the locking portion to the locked portion during operation of the first transmission piece portion so that the first transmission piece portion It is operable in the forward direction or the reverse direction according to the operation direction, and by operating in the forward direction, the stopper is moved upward to open the drain port, while operating in the reverse direction. It is possible to close the drain port by lowering the stopper, and when a downward load is applied to the stopper at least in a state where the stopper is moved upward, the stopper side A second transmission piece configured to apply a load from
While allowing the operation of the first transmission piece and the second transmission piece with the rotation of the shaft, when the load applied to the second transmission piece from the stopper side is a predetermined amount or less. A stopper mechanism that regulates the operation of the first transmission piece and the second transmission piece according to the load,
When a load exceeding the predetermined amount is applied from the stopper side to the second transmission piece, the locking of the locking portion with respect to the locked portion is in an insufficient state, and the operation by the stopper mechanism is performed. A clutch mechanism that enables the second transmission piece to operate independently of the restricted first transmission piece,
When the stopper is moved upward and the drain port is in an open state, a load exceeding the predetermined amount is applied to the stopper from the stopper side by applying a downward force to the stopper. In addition, while the clutch mechanism makes the locking of the locking portion to the locked portion insufficient, the second transmission piece is restricted to the first transmission piece whose operation is regulated by the stopper mechanism. The electric operating device is characterized in that the parts are operated independently in the reverse direction, and thus the stopper is movable downward.   When the stopper is moved upward and the outlet is in an open state, the stopper is configured to be capable of closing the outlet by only applying a downward force to the stopper. The electric operating device according to claim 1, wherein: Driving force by the rotation of the shaft portion is transmitted to the lid side through the transmission body and a vertically movable support shaft that supports the lid at the top,
The drain lid is configured to be in a closed state by the stopper being disposed at a predetermined closed position,
When the support shaft moves upward and the drain port is in an open state, a load exceeding the predetermined amount is applied from the support shaft side to the second transmission piece by applying a downward force to the support shaft. In addition, while the clutch mechanism makes the locking of the locking portion to the locked portion insufficient, the second transmission piece is restricted to the first transmission piece whose operation is regulated by the stopper mechanism. The parts are independently operated in the opposite direction, and thus the support shaft is configured to be able to move downward,
When the support shaft is moved upward and the drain port is open, the stopper is removed from the support shaft and a downward force is applied to the support shaft to close the stopper. The electric operating device according to claim 1, wherein the support shaft can be moved down to a position where the support shaft can be arranged at the position. Equipped with an operated part that can be operated manually,
A load generated by manually operating the operated portion is configured to be applied to the second transmission piece without passing through the first transmission piece,
By manually operating the operated portion and applying a load exceeding the predetermined amount to the second transmission piece portion, the clutch mechanism makes the engagement of the engagement portion to the engagement portion in an insufficient state. The second transmission piece can be independently operated in the forward direction or the reverse direction with respect to the first transmission piece whose operation is restricted by the stopper mechanism. The electric operating device according to any one of claims 1 to 3. The stopper mechanism includes:
A worm attached to the shaft,
The electric operating device according to claim 1, further comprising a self-locking mechanism including a gear meshed with the worm. While moving with the operation of the second transmission piece, the second transmission piece is disposed at a predetermined first position when the second transmission piece moves in the forward direction and the stopper is moved upward. A displacement movement unit disposed at a second position different from the first position when the second transmission piece operates in the reverse direction and the stopper is moved downward,
The electric operation according to claim 1, wherein a rotation direction of the shaft is controlled based on information from a position detection sensor that detects an arrangement position of the displacement motion unit. apparatus. The first transmission piece and the second transmission piece are gears that rotate on the same rotation shaft, respectively.
The locked portion is formed on the inner periphery of the second transmission piece,
The locking portion is provided at a portion of the first transmission piece that is inserted into the second transmission piece, and is locked to the locked portion,
The electric clutch according to any one of claims 1 to 6, wherein the clutch mechanism includes a bending portion that elastically deforms the locking portion along a direction orthogonal to the rotation axis. Operating device. The first transmission piece and the second transmission piece are gears that rotate on the same rotation shaft, respectively.
The locking portion is formed on the inner periphery of the first transmission piece portion,
The locked portion is provided at a portion of the second transmission piece that is inserted into the first transmission piece, and the locking portion is locked,
7. The electric motor according to claim 1, wherein the clutch mechanism includes a bending portion configured to elastically deform the locked portion along a direction orthogonal to the rotation axis. 8. Type operation device.

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