JP2600263B2 - Opening and closing device for toilet seat and toilet lid in toilet bowl - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to an opening / closing device for automatically opening and closing a toilet seat and a toilet lid used in a toilet bowl by a drive unit.

(Prior Art) In a conventional toilet, a user opens and closes a toilet seat and a toilet lid with fingers. However, touching the toilet seat or lid directly with your fingers
It is not hygienic. In particular, toilets installed in places used by an unspecified number of people, such as hospitals, schools, and buildings, are not hygienic and cause discomfort and dirtyness to users. Therefore, in recent years, an opening / closing device that automatically opens and closes a toilet seat and a toilet lid with a drive motor has been developed. This opening and closing device has greatly contributed to hygiene, up-grade toilets, and ease of use for physically handicapped persons.

By the way, there is known an opening / closing device for automatically opening and closing both the toilet seat and the toilet lid described above, which is disclosed in Japanese Patent Application Laid-Open No. 55-91331. In this opening and closing device, as shown in FIG. 6, one shaft 101 is rotatably mounted on the toilet 100, and the toilet seat 102 and the toilet lid 103 are rotatably supported on the single shaft 101, An electromagnetic clutch member 1 dedicated to the toilet seat between the rear end of the toilet seat 102 and the shaft 101.
05, an electromagnetic clutch member 106 dedicated to the toilet lid is provided between the rear end of the toilet lid 103 and the shaft 101, and the drive motor 1
The motor shaft 108 is disposed parallel to the shaft 100, and a speed reduction mechanism 109 is interposed between the shaft 100 and the motor shaft 108.

In the opening / closing device described above, when the drive motor 107 is driven, the shaft 100 rotates through a predetermined angle via the motor shaft 108 and the speed reduction mechanism 109. At this time, if the electromagnetic clutch member 105 dedicated to the toilet seat is turned on and operated, the toilet seat 102 and the shaft
Because the toilet seat 102 is connected to the toilet seat 102, the toilet seat 102 rotates. On the other hand, if the electromagnetic clutch member 106 dedicated to the toilet lid is turned on and operated, the toilet lid 103 and the shaft 100 are connected.
103 rotates.

(Problem to be Solved by the Invention) In the opening / closing device according to the above-mentioned Japanese Patent Application Laid-Open No. 55-91331, the toilet seat 102 and the toilet lid 103 are rotatably supported on one shaft 100 by one shaft. Only 100 rotations, toilet seat 10
2. The power is transmitted to both the toilet lid 103.

The present invention is different from the conventional opening / closing device employing a single shaft system in which both the toilet seat and the toilet lid are rotated by one shaft as described above, and the shaft for the toilet seat and the shaft for the toilet lid are coaxially arranged. The opening and closing of the toilet seat and the toilet lid in a toilet that can automatically open and close the toilet seat and the toilet lid via a transmission member by adopting a double shaft system that is separately and independently rotatably arranged It is an object to provide a device.

[Means for Solving the Problems] An opening / closing device for a toilet seat and a toilet lid in a toilet according to the present invention includes a base having a shaft hole provided in the toilet, and an output shaft provided in the base. A driving unit, a hollow first shaft disposed on one of a toilet seat or a toilet lid and rotatably fitted in a shaft hole of a base and having both axial ends open, and disposed on the other of the toilet seat and the toilet lid A second shaft disposed coaxially in the hollow portion of the first shaft and rotatably with respect to the first shaft; and an output shaft interposed between the first shaft, the second shaft, and an output shaft of the drive unit. And a transmission member capable of transmitting the rotational force of the first shaft and the second shaft to one or both of the first shaft and the second shaft. The transmission member is fixed to one of the first shaft and the second shaft and is movable with the one. Coil and one side A first suction unit fixed and magnetized by the movable coil, a fixed coil fixed to the base, a second suction unit magnetized by the fixed coil, a rotor unit rotated by the output shaft, and held by the rotor unit A rotor-side adsorber that is adsorbed by the first adsorbing portion and connects the rotor portion to one of the rotor portions; And a shaft-side adsorber that connects the two.

In the switchgear according to the present invention, the base is provided on the toilet. The base can be, for example, a box or bracket held on the toilet bowl. A shaft hole is formed in the base.

The drive has an output shaft. The output shaft can be the motor shaft of a normal drive motor.

The first shaft has a hollow shape whose both ends in the axial direction are open, and is rotatably fitted in a shaft hole of the base. The first shaft is provided on one of the toilet seat and the toilet lid. The first shaft may have a structure integrally formed on one of the toilet seat and the toilet lid, or may have a structure in which a separate member is stopped by a stopper or the like.

The second shaft is rotatably disposed in the hollow portion of the first shaft coaxially with the first shaft with respect to the first shaft. The second shaft is provided on the other of the toilet seat and the toilet lid. The second shaft may have a structure integrally formed with the other of the toilet seat and the toilet lid, or may have a structure in which a separate member is stopped with a stopper or the like.

The transmission member is disposed between the output shaft of the drive unit and the first shaft and the second shaft. The transmission member connects the output shaft of the drive unit and the first shaft only, or connects the output shaft of the drive unit and the second shaft only, or the output shaft of the drive unit and the first shaft and the first shaft. It is a power transmission member having a function of connecting the two shafts. The transmission member includes a movable coil fixed to one of the first shaft and the second shaft and rotating together with the one of the first shaft and the second shaft, a first adsorption unit fixed to one side and magnetized by the movable coil, and a fixed coil fixed to the base. A rotor portion having a second attracting portion magnetized by a fixed coil and being rotated by an output shaft;
A rotor-side adsorber that is adsorbed by the adsorbing portion and connects the rotor portion to one of the rotor portions; And a shaft side adsorber to be connected. The transmission member may be configured such that the transmission member for the toilet seat and the transmission member for the toilet lid are brought into close proximity to each other and integrally formed as a unit. The transmission member unitized in this way is
For example, it can be arranged at one end side in the axial direction of the first shaft or the second shaft.

(Operation) In the case where the transmission member connects the output shaft and only the first shaft, when the driving unit is driven, the rotational force of the output shaft is transmitted only to the first shaft. Therefore, the first shaft rotates independently of the second shaft in the shaft hole.
Therefore, only one of the toilet seat and the toilet lid connected to the first shaft is opened and closed about the first shaft.

On the other hand, when the transmission member connects only the output shaft and the second shaft, when the driving unit is driven, the rotational force of the output shaft is transmitted only to the second shaft. Therefore, the second shaft rotates independently of the first shaft. Therefore,
Only the other of the toilet seat and the toilet lid disposed on the second shaft is opened and closed about the second shaft.

Further, when the transmission member connects the output shaft to both the first shaft and the second shaft, when the driving unit is driven, the rotational force of the output shaft is simultaneously transmitted to both the first shaft and the second shaft. Then, both the toilet seat and the toilet lid are simultaneously opened and closed.

(Embodiment) Hereinafter, an embodiment of the opening / closing device of the present invention will be described with reference to FIGS.

(Configuration of Example) FIG. 4 shows the entire toilet 1. As shown in FIG. 4, a toilet seat 2 on which a user sits is disposed on the toilet bowl 1,
A toilet lid 3 is arranged so as to cover the upper part of the toilet seat 2. A box as a base is disposed at the rear end of the toilet 1.
The inside of the box part 4 is shown in FIG. As shown in FIG. 3, a shaft hole 7 is formed in one side of the opposing wall of the box portion 4 so as to penetrate in the horizontal direction, and a shaft hole 8 is formed in the other side of the opposing wall of the box portion 4 in the horizontal direction. And is formed so as to face the shaft hole 7. 1 and 2 show the inside of the box portion 4. FIG. As shown in FIG. 1, a motor 11 as a driving unit is fixed to the motor mounting unit 9 of the box unit 4 by bolts 10. The motor 11 is provided with a motor shaft 12 as an output shaft.

To the rear end 3a of the toilet lid 3, a hollow short toilet lid shaft 14 as a first shaft is prevented from rotating by a fastener 14c and is integrally connected. The toilet lid shaft 14 is formed by a small-diameter tubular portion 15 having an insertion hole 14a that is open at both ends in the axial direction, and a large-diameter portion 16 provided at one end of the small-diameter tubular portion 15.

A short toilet seat shaft 18 made of SUM23 (JIS) is used as a second shaft at the rear end 2a of the toilet seat 2 on which the user sits.
19 is detented and connected. Toilet seat shaft 18
A spline portion 20 is formed at one end of the. The toilet seat shaft 18 is rotatably fitted into the insertion hole 14a of the toilet lid shaft 14 with respect to the toilet lid shaft 14, and an axial end of the toilet seat shaft 18 projects from the insertion hole 14a.

The transmission member 22 is a unit type electromagnetic brake type, and is arranged on one side in the box portion 4 described above. The transmission member 22 is, as shown in FIG.
A movable coil 27 for opening and closing the toilet lid 3 which is fixed in a movable coil chamber 26 of a movable housing 25 fixed to a stop 16a and connected to a lead wire 27a, and a first part which forms a part of the movable housing 25. A fixed coil 29 for opening and closing the toilet seat 2 which is fixed to a fixed coil chamber 28 of a fixed housing 76 fixed to the box portion 4 via a not-shown stopper and connected to a conducting wire 29a.
And a sleeve in the rotor hole 30 in the center of the fixed housing 76.
A rotor part 32 rotatably held via a base ring 31 and a stop ring 31a and having a second suction part 32a; and a rotor side adsorber held at a tip part 32b of the rotor part 32 so as to be movable in the axial direction of the rotor part 32. Ring shaped armature 33 as
And an armature 34 as a shaft side adsorber which has a spline hole 34a and is provided in the spline portion 20 of the toilet seat shaft 18 so as to be movable in the axial direction of the toilet seat shaft 18. Here, the armatures 33 and 34 function as movable pieces. The armature 33 is locked with the rotor section 32 and rotates integrally with the rotor section 32. The rotor part 32 cannot move in the axial direction due to the stop ring 31a. Rotor part 32
A motor shaft insertion hole 36 is formed in the center of the motor shaft 11. The motor shaft 12 of the motor 11 is inserted through the motor shaft insertion hole 36, and is fixed by a stopper 37. Therefore motor 11
When the rotor rotates, the rotor section 32 rotates. The movable housing 25, the armature 33, the armature 34, the rotor
32 is made of steel having high magnetic permeability. Movable housing
An insertion hole 38 is formed at the center of the fixed housing 76 so as to face the rotor hole 30 of the fixed housing 76, and the toilet seat shaft 18 is rotatably inserted into the insertion hole 38 via a sleeve 39. In this embodiment, when the toilet lid shaft 14 rotates, the movable housing 25 and the movable coil 27 rotate together with the toilet lid shaft 14. Further, even if the rotor part 32, the toilet lid shaft 14, and the toilet seat shaft 18 rotate, the fixed housing 76, the fixed coil 29
Is a fixed state.

In this embodiment, the motor shaft 12, the rotor portion 32, the toilet lid shaft 14, and the toilet seat shaft 18 are arranged on the same axis.

Further, the other shaft hole 8 will be described. As shown in FIG. 3, the other short toilet lid shaft 40 is rotatably inserted into the shaft hole 8, and the other toilet lid shaft 40 has an insertion hole 41 that is open at both ends in the axial direction.
Is formed, and the other short toilet seat shaft 47 is inserted into the insertion hole 41.
Are rotatably inserted coaxially with the toilet lid shaft 40. An auxiliary spring 42 for assisting torque when opening and closing the toilet lid 3 is interposed between the bearing 42a and the toilet lid rotating plate 44 on the other toilet lid shaft 40. Auxiliary spring 43 assists torque when opening and closing the bearing
It is interposed between 43a and the toilet seat rotating plate 48. Further, a toilet lid rotating plate 44 is integrally provided with a key 44 on the toilet lid shaft 40.
The toilet lid opening / stopping switch 45 and the toilet lid closing / stopping switch 46, which are held via a and are operated by being pressed by the toilet lid rotating plate 44, are held in the box portion 4. The toilet lid opening stop switch 45 is a normally-closed limit switch, and is a switch for stopping the opening operation of the toilet lid 3 by being pushed off by the toilet lid rotating plate 44. The toilet lid close stop switch 46 is
It is a normally-closed limit switch which is turned off by being pushed by the toilet lid rotating plate 44 to stop the closing operation of the toilet lid 3. Further, a toilet seat rotating plate 48 is integrally held on the toilet seat shaft 18 via a key 48a, and a toilet seat opening / stopping switch 49 and a toilet seat closing / stopping switch 50 which are pressed and operated by the toilet seat rotating plate 48 are provided in a box. It is held in the part 4. The toilet seat opening stop switch 49 is a normally closed limit switch, and is a switch for being turned off by being pushed by the toilet seat rotating plate 48 and stopping the opening operation of the toilet seat 2. The toilet seat close stop switch 50 is a limit switch that is normally closed, and is turned off by being pushed by the toilet seat rotating plate 48 to stop the closing operation of the toilet seat 2.

Now, as shown in FIG.
55 are provided. The control unit 55 is provided with a toilet lid open switch 56 for opening the toilet lid 3, a toilet seat toilet lid close switch 57 for closing the toilet seat 2 and the toilet lid 3, and a toilet seat open switch 58 for opening the toilet seat 2. I have. FIG. 5 shows an electric circuit diagram of the control unit 55. As shown in FIG.
A transformer 64, a rectifier 62, a motor switch 63, and the motor 11 are connected to 60. Here, the motor changeover switch 63
When the switch piece 63a is closed, the motor 11 rotates reversely, and when the switch piece 63a is opened, the motor 11 rotates forward. Further, an open / close switch 65 for the toilet seat toilet lid is connected in series to the movable coil 27 and the fixed coil 29. Further, the opening / closing switch 65 for the toilet seat lid has a
6.The toilet lid open / close switch 45, the toilet seat close / stop switch 50, and the toilet seat open / stop switch 49 are connected in series, respectively.
Further, a toilet seat opening selection switch 66 is connected in series with the toilet seat opening stop switch 49.

(Operation of Embodiment) The operation of this embodiment will be described with reference to FIGS. First, a case where only the toilet lid 3 is opened will be described. In this case, only the movable coil 27 is energized via the conductive wire 27a to excite the movable coil 27. Then, the first suction part 75 of the movable housing 25 is magnetized, and the armature
33 is sucked by the first suction portion 75, and both are brought into surface contact to be integrated. In this state, the toilet lid shaft 14 and the rotor part 32 are in a state where they can rotate integrally. At this time, when the motor 11 is energized, the rotor portion 32 is rotated by the motor shaft 12 as an output shaft. As a result, the toilet lid shaft 14 is moved in the circumferential direction of the toilet cover shaft 14 through the armature 33 and the first suction portion 75. It rotates about 120 to 130 degrees together with 25 and the movable coil 27, so that a rotational force is transmitted to the toilet lid 3, and the toilet lid 3 is opened. At this time, the rotation of the toilet lid shaft 40 forming a pair with the toilet lid shaft 14 is promoted by the elastic force of the auxiliary spring 42. When the opening of the toilet lid 3 is completed, the motor is turned on with the movable coil 27 being excited.
When the rotation of 11 is reversed, the motor shaft 12, the rotor section 32, and the toilet lid shaft 14 rotate in the reverse direction, so that the toilet lid 3 is closed. Since the conductive member 27a connected to the movable coil 27 is loose, there is no problem even if the movable coil 27 rotates.

Next, a case where the toilet seat 2 is opened and closed will be described. In this case, only the fixed coil 29 is energized through the conducting wire 29a to excite the fixed coil 29. Then, the second attraction portion 32a of the rotor portion 32 is magnetized, so that the armature 34 is attracted to the second attraction portion 32a of the rotor portion 32 and the armature 3
4 spline hole 34a moves along the spline portion 20,
As a result, the armature 34 and the rotor section 32 come into surface contact with each other and become integrated. In this state, the rotor section 32 and the toilet seat shaft
18 is in a state where it can be integrally rotated via a spline section 20. At this time, when the motor 11 is energized, the rotor portion 32 rotates while the fixed coil 29 is fixed, and the toilet seat shaft 18 rotates via the armature 34 and the spline portion 20. As a result, a rotational force is transmitted to the toilet seat 2, and the toilet seat 2 is rotated. 2 is released.
At this time, the rotation of the toilet seat shaft 47 forming a pair with the toilet seat shaft 18 is promoted by the elastic force of the auxiliary spring 43. Toilet seat 2
Is completed, when the motor 11 is rotated in the reverse direction while the fixed coil 29 is excited, the toilet seat 2 closes because the motor shaft 12, the rotor section 32, and the toilet seat shaft 18 rotate in the reverse direction.

When the movable coil 27 is excited as described above, the toilet lid shaft 14 and the toilet lid 3 are opened and closed while the toilet seat shaft 18 is not rotating.
Is excited, the toilet seat shaft 18 and the toilet seat 2 are opened and closed.

Next, a case where both the toilet lid 3 and the toilet seat 2 are simultaneously opened and closed will be described. In this case, both the movable coil 27 and the fixed coil 29 are energized simultaneously to excite the movable coil 27 and the fixed coil. Then, the armature 33 is sucked by the first suction portion 75 and integrated therewith, the spline hole 34a of the armature 34 moves along the spline portion 20, and the armature 34 is sucked and integrated by the second suction portion 32a of the rotor portion 32. Becomes At this time, when the motor 11 is energized,
Since the rotor portion 32 rotates integrally with the motor shaft 12 of the motor 11, the toilet lid shaft 14 rotates through the armature 33 and the movable housing 25, and the rotational force is transmitted to the toilet lid 3, and the toilet lid 3
Is released. At the same time, the armature 34 is sucked and integrated with the second suction portion 32a of the rotor portion 32, so that the rotational force is transmitted to the toilet seat shaft 18 via the armature 34, the toilet seat shaft 18 rotates, and the toilet seat 2 rotates. . When the motor 11 is rotated in reverse while the movable coil 27 and the fixed coil 29 are excited, the motor shaft 12 and the rotor 32 rotate in reverse, so that both the toilet lid 3 and the toilet seat 2 are closed.

Next, the operation of the electric circuit of the control unit 55 will be further described with reference to FIGS. 4 and 5 in each of the following cases (A), (B), (C), (D) and (E). Add.

(A) When the toilet lid 3 and the toilet seat 2 are both closed, the following (1), (2), and (3) will be described separately.

(1) First, a case where only the toilet lid 3 is opened from the state of FIG. In this case, the toilet lid open switch 56 of the control unit 55 shown in FIG. 4 is operated. Then, in conjunction with this, the switch piece 63a of the motor changeover switch 63 enters the open side, that is, the forward rotation side of the motor 11, as shown by the solid line in FIG.
The switch piece 65a of the open / close switch 65 also enters the toilet seat open and toilet lid open side as shown by the solid line in FIG. However, since the switch piece 66a of the toilet seat opening selection switch 66 is open and turned off, the fixed coil 29 is not energized, and the movable coil 27 and the motor 11 are energized. Movable coil 27 energized by this
Is excited and the motor 11 rotates forward, and only the toilet lid 3 starts to open as described above. When the opening of the toilet lid 3 is completed and the toilet lid rotating plate 44 presses the toilet lid open / close switch 45 (a normally closed limit switch) to turn off the switch piece 45a, the movable coil 27 is demagnetized. The toilet lid 3 stops.

(2) The side for opening the toilet seat 2 in the state (A) will be described. In this case, the toilet seat open switch 58 of the control unit 55 shown in FIG. 4 is operated. Then, in conjunction with this, the switch piece 63a of the motor changeover switch 63 enters the open side, ie, forward rotation of the motor 11, as shown by the solid line in FIG. 5, and the switch piece 65a of the open / close changeover switch 65 also becomes a solid line in FIG. As shown, enter the toilet seat open and toilet lid open side. Then, the switch piece 66a of the toilet seat opening selection switch 66 is turned on. Thereby, the fixed coil 29, the movable coil 27, and the motor 11 are energized. As a result, both the fixed coil 29 and the movable coil 27 are excited and the motor 11 rotates forward, so that the toilet lid 3 and the toilet seat 2 are rotated.
And both begin to open. When the opening of the toilet lid 3 is completed and the toilet lid rotating plate 44 pushes the toilet lid open stop switch 45 (a normally closed limit switch) to turn off the switch piece 45a, the movable coil 27 is demagnetized and the toilet lid 3 stops. I do. Further, when the opening of the toilet seat 2 is completed, the toilet seat rotation plate 48 is
(Normally closed limit switch) and press switch piece 49a
Is turned off, the fixed coil 29 is demagnetized, and the toilet seat 2 stops.

(3) In the state of (A), when the toilet seat / close switch 57 of the control unit 55 shown in FIG. 4 is operated, the switch piece 65a of the open / close switch 65 is interlocked with the operation as shown by a broken line in FIG. To the close side and the motor changeover switch 63
The switch piece 63a is also switched to the closed side, that is, the reverse rotation side of the motor 11, as shown by the broken line in FIG. However, in this case, as described in (A), both the toilet lid 3 and the toilet seat 2 are closed, and the toilet lid rotating plate 44 pushes the toilet lid closing / stopping switch 46 (a normally closed limit switch) to switch the switch. Since 46 is turned off, the movable coil 27 is demagnetized, and the toilet lid 3 does not operate. Also, the toilet seat rotating plate 48 is a toilet seat close stop switch 50.
Since the switch piece 50a is turned off by pressing the (normally closed limit switch), the fixed coil 29 is also demagnetized, so that the toilet seat is operated in the same manner as the toilet lid 3 even though the toilet seat lid close switch 57 is operated. 2 does not work.

(B) When the toilet lid 3 and the toilet seat 2 are both open,
The following (1), (2), and (3) will be described separately.

(1) When the toilet lid 3 and the toilet seat 2 are both closed in the state of (B), the toilet seat toilet lid closing switch 57 of the control unit 55 shown in FIG. 4 is operated in this case. Then, in conjunction with this, switch piece 63a of motor changeover switch 63
Is switched to the closed side, that is, the reverse rotation side of the motor 11, as shown by the broken line in FIG. 5, and the switch piece 65a of the open / close switch 65 is switched to the closed side as shown by the broken line in FIG.
Since the toilet seat 2 and the toilet lid 3 are already open as described in (B), the switch piece 46a of the toilet lid close / stop switch 46 and the switch piece 50a of the toilet seat close / stop switch 50 are on, and the movable coil 27, the fixed coil 29 and the motor 11 are energized, so that the movable coil 27 and the fixed coil 29 are excited,
At the same time, the motor 11 rotates in the opposite direction, so that both the toilet lid 3 and the toilet seat 2 start closing. At this time, when the closing of the toilet lid 3 is completed and the toilet lid rotating plate 44 presses the toilet lid closing stop switch 46 (a normally closed limit switch) to turn off the switch piece 46a, the movable coil 27 is demagnetized, and the toilet lid 3 is demagnetized. Stops. When the closing of the toilet seat 2 is completed, the toilet seat rotating plate 48 is
Press 50 (normally closed limit switch) and press 50
When a is turned off, the fixed coil 29 is demagnetized, and the toilet seat 2 stops.

(2) In the state (B), the control unit 55 shown in FIG.
When the toilet lid open switch 56 is pressed,
Switch piece of open / close switch 65 in conjunction with switch 56
The switch 65a is switched to the open side as shown by the solid line in FIG. 5, and the switch piece 63a of the motor changeover switch 63 is also switched to the open side, that is, the forward rotation side of the motor 11, as shown by the solid line in FIG. Then, the switch piece 66a of the toilet seat open selection switch 66 is open and off as shown by a solid line in FIG. 5, and only the movable coil 27 and the motor 11 are energized. In this case, (B) As described above, since the toilet lid 3 has already been opened and the toilet lid rotating plate 44 has pressed the toilet lid open / close switch 45 (a normally closed limit switch) to turn off the switch piece 45a, the movable coil 27 is in a demagnetized state. Therefore, even if the toilet lid open switch 56 of the control unit 55 is operated as described above, the toilet lid 3 does not operate.

(3) When the toilet seat 2 and the toilet lid 3 are both open (B), the toilet seat open switch 58 of the control unit 55 shown in FIG.
Pressing the open / close switch 65
The switch piece 65a of the motor changeover switch 63 is switched to the open side as shown by the solid line in FIG.
a is also switched to the open side as shown by the solid line in FIG. Then, the movable coil 27, the fixed coil 29, and the motor 11 are energized. At this time, as shown in FIG.
And the toilet seat 2 have already been opened, the toilet lid rotating plate 44 has pressed the toilet lid open / stop switch 45 (a normally closed limit switch), and the switch piece 45a of the toilet lid open / stop switch 45 is off. Is in a demagnetized state, and the toilet lid 3 does not operate. Also, the toilet seat rotating plate 48 pushes the toilet seat open / close switch 49 (a normally closed limit switch), and the switch piece 49
Since a is off, the fixed coil 29 is in a demagnetized state,
Therefore, even if the toilet seat open switch 58 is operated as described above, the toilet seat 2 does not operate.

(C) When the toilet lid 3 is open and the toilet seat 2 is closed, the following (1), (2), and (3) will be described separately.

(1) When the toilet lid open switch 56 of the control unit 55 shown in FIG. 4 is pressed, the content is the same as that described in the above (B) (2).

(2) When the toilet seat open switch 58 of the control unit 55 shown in FIG. 4 is pressed in order to open the toilet seat 2 from the state shown in FIG. 4C, the switch piece 65a of the open / close switch 65 is shown by a solid line in FIG. Switch to the open side as shown in FIG.
The switch piece 63a is also switched to the open side as shown by the solid line in FIG. 5, and the toilet seat selection switch 66 is also turned on. Then, the movable coil 27, the fixed coil 29 and the motor 11 are energized, but the toilet lid 3 has already been opened and the toilet lid rotating plate 44 stops opening the toilet lid as described in FIG. Since switch 45 is turned off by pressing switch 45, moving coil 2
7 is demagnetized, while only the toilet seat 2 is opened by the excitation of the fixed coil 29. When the toilet seat 2 is completely opened, the toilet seat rotating plate 48 presses the toilet seat open / close switch 49 (a normally closed limit switch) to turn off the switch piece 49a, so that the fixed coil 29 is demagnetized and the toilet seat 2 stops.

(3) In the state of (C), when the toilet seat / close switch 57 of the control unit 55 shown in FIG. 4 is pressed, the switch piece 65a of the open / close switch 65 is closed as shown by the broken line in FIG. And the switch piece 63a of the motor changeover switch 63 is also closed as shown by the broken line in FIG.
Switch to 1 rotation side. However, since the toilet seat 2 is already closed as shown in (C), the toilet seat rotating plate 48 pushes the toilet seat close stop switch 50 to turn off the switch piece 50a, so that the fixed coil 29 is in a demagnetized state and the toilet seat 2 is Does not work,
On the other hand, since the movable coil 27 is in the excited state, only the toilet lid 3 is closed. When the closing of the toilet lid 3 is completed, the toilet lid rotating plate
Since the switch 44 presses the toilet lid closing stop switch 46 (a normally closed limit switch) to turn off the switch piece 46a, the movable coil 27 is demagnetized and the toilet lid 3 stops.

(D) When the toilet lid 3 and the toilet seat 2 are being opened at the same time, the toilet seat toilet lid closing switch 57 of the control unit 55 shown in FIG.
When the button is pressed, the open / close switch 65
The switch piece 65a of the motor changeover switch 63 is switched to the closed side as shown by the broken line in FIG.
a is also switched to the closed side, that is, the reverse rotation side of the motor 11, as shown by the broken line in FIG. At this time, the switch piece 46a of the toilet lid closing / stopping switch 46 and the switch piece 50a of the toilet seat closing / stopping switch 50 are in the ON state because the door is being opened as described above. As a result, the movable coil 27 and the fixed coil 29 are excited, and both the toilet lid 3 and the toilet seat 2 start closing.

(E) When the toilet seat open switch 58 of the control unit 55 shown in FIG. 4 is operated while the toilet lid 3 and the toilet seat 2 are simultaneously closed, the switch piece 65a of the open / close switch 65 is shown by a solid line in FIG. As shown, the switch is switched to the open side, and the switch piece 63a of the motor changeover switch 63 is also switched to the open side as shown by the solid line in FIG. Thereby, the movable coil 27 and the fixed coil 29 are excited, and both the toilet lid 3 and the toilet seat 2 start to open. In the state (E), the control unit 55 shown in FIG.
When the toilet lid open switch 56 is pressed, the switch piece 65a of the open / close changeover switch 65 is switched to the open side as shown by the solid line in FIG. 5, and the switch piece 63a of the motor changeover switch 63 is also changed to the solid line in FIG. Switches to the open side as shown by
At this time, since the toilet seat open selection switch 66 is turned off as shown by the solid line in FIG. 5, only the movable coil 27 is excited,
The fixed coil 29 is in a demagnetized state, so that only the toilet lid 3 starts the opening operation.

(Effects of Embodiment) In this embodiment, the insertion hole 14a of the hollow toilet lid shaft 14 is provided.
The toilet seat shaft 18 is rotatably inserted therein, and the switching operation of the transmission member 22 causes only the toilet seat shaft 14 to rotate with respect to the toilet seat shaft 18 while keeping the toilet seat shaft 18 in a non-rotating state, thereby opening the toilet cover 3. Open and close, or toilet seat shaft
The toilet seat 2 can be opened and closed by rotating the toilet seat 18, or both the toilet seat shaft 14 and the toilet seat shaft 18 can be simultaneously rotated to open and close both the toilet seat 2 and the toilet cover 3.

In the present embodiment, the toilet seat shaft is
18 is a double shaft structure. Moreover, the toilet lid shaft 14 and the toilet seat shaft 18 are both short. Therefore, the shaft may not be provided in the middle part of the toilet seat 2 and the middle part of the toilet lid 3 (the part facing the person when urinating a man) shown in FIG. Therefore, unlike the conventional apparatus shown in FIG. 6, one long shaft 100 is connected to the toilet seat 102 and the toilet lid.
Because it penetrates between the 103s, the conventional long shaft 100, which is liable to splash small flights, can be omitted, which is advantageous in terms of sanitation. In addition, a long single shaft 10
0 can be omitted, so that the torque of the motor 11 can be smaller than that in the case of the above-mentioned Japanese Patent Application Laid-Open No. 55-91331, and the joint between the armature 33 and the first suction portion 75 on the movable housing 25 side can be further reduced. The force and the joining force between the armature 34 and the second suction portion 32a of the rotor portion 32 are also smaller than when a single shaft method is adopted, which tends to increase the weight because of its long length. Is advantageous. Furthermore, as described above, only one shaft hole 7 side, that is,
Since the transmission member 22 is provided only on one side of the box portion 4, a space for assembling other parts can be given, and the degree of freedom in setting can be increased.

Further, in this embodiment, since the transmission member 22 is located on the lateral side of the toilet seat 2 and the toilet lid 3, the transmission member 22 does not face the person who urinates, and is housed in the box portion 4. . Therefore, when the toilet 1 is used, urine splashes and the like are transmitted to the transmission member 22.
This is advantageous in minimizing spilling on the motor 11 side.

Further, in the present embodiment, even when the toilet seat 2 and the toilet lid 3 are gripped with fingers by mischief or erroneous operation while the motor 11 is being driven, the armature 33 and the first suction portion 75 that are in surface contact with each other are relatively positioned. Armatures that slide on
And the second suction part 32a of the rotor part 32 slides relatively,
The overload acting on the motor 11 can be suppressed.

By the way, in this embodiment, as shown in FIG.
A positive characteristic (PTC) thermistor 70 is connected in series. The positive temperature coefficient (PTC) thermistor 70 is a thermistor whose resistance increases at room temperature or higher. As a particularly preferable one, a type whose resistance rapidly increases in a predetermined temperature range above room temperature is preferable. In the present embodiment, when the motor 11 starts up when the load torque of the motor 11 is within the normal range, the PTC thermistor 70 connected in series with the motor 11 generates heat due to the motor drive current and increases in temperature. . However, since the opening and closing time of the toilet seat 2 and the toilet lid 3 is as short as a few seconds, the temperature rise and the resistance value of the positive temperature coefficient thermistor 70 fall within a certain range, and the voltage drop across the positive temperature coefficient thermistor 70 is It does not become a size that would hinder opening and closing of the toilet lid 3. But motor 11
When the load torque of the motor 11 is above the normal range, for example, when the toilet seat 2 or the toilet lid 3 is stopped by grasping the toilet seat 2 or the toilet lid 3 with fingers, the toilet seat 2 or the toilet lid 3 is restrained and the motor 11
Does not end in the above-mentioned short time but continues for a long time. Then, the temperature of the PTC thermistor 70 that generates heat due to the motor drive current continues to rise, and as a result, the resistance of the PTC thermistor 70 rapidly increases. The sudden increase in the resistance value of the PTC thermistor 70
The voltage applied to 11 is greatly reduced, eliminating the problem of overload torque.

[Effects of the Invention] According to the toilet seat and toilet lid opening / closing device of the toilet according to the present invention, a single shaft system in which both the toilet seat and the toilet lid are opened and closed with a single shaft as in the related art shown in FIG. Unlike the open / close device adopted, this is a double-shaft type open / close device in which a shaft for a toilet seat and a shaft for a toilet lid are coaxially and rotatably arranged so as to rotate independently of each other. And the toilet lid can open and close automatically.

[Brief description of the drawings]

1 is a side view showing the inside of the box, FIG. 2 is a plan view showing a cross section near the transmission member in the box, and FIG. 3 is a plan view showing the right and left sides of the box in cross section. FIG. 4 is a schematic perspective view of the entire toilet, and FIG. 5 is an electric circuit diagram of the control unit. FIG. 6 is a plan view of a conventional switchgear. In the figure, 1 is a toilet bowl, 2 is a toilet seat, 3 is a toilet lid, 4 is a box (base), 7 is one shaft hole, 11 is a motor (drive unit),
12 is a motor shaft (output shaft), 14 is a toilet lid shaft (one of the first shaft and the second shaft), 18 is a toilet seat shaft (the other of the first shaft and the second shaft), 22 is a transmission member, and 25 is a movable member. A housing, 27 is a movable coil, 29 is a fixed coil, 32 is a rotor part, 32a is a second suction part, 33 is an armature (rotor side suction part), 34 is an armature (shaft side suction part), and 75 is a first suction part. , 76 denote fixed housings, respectively.

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Michiharu Uwatari 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki Co., Ltd. (56) References JP-A-1-244729 (JP, A) JP-A Sho 64-107722 (JP, A) JP-A-52-33343 (JP, A) JP-A-62-66593 (JP, U)

Claims (1)

(57) [Claims] 1. A base having a shaft hole provided in a toilet bowl, a driving unit having an output shaft provided in the base, and being rotated in the shaft hole of the base provided in one of a toilet seat or a lid. A hollow first shaft which is freely fitted and whose both ends in the axial direction are open; and which is disposed on the other of the toilet seat and the toilet lid, coaxially in the hollow portion of the first shaft and with respect to the first shaft. A second shaft rotatably disposed between the first shaft and the second shaft, and interposed between the first shaft, the second shaft, and the output shaft of the drive unit, and rotating the output shaft between the first shaft and the second shaft. A transmission member that is capable of transmitting to one or both of the shafts, wherein the transmission member is fixed to one of the first shaft and the second shaft and rotates with the one; Fixed A rotor portion having a first attracting portion magnetized by the movable coil, a fixed coil fixed to the base portion, a second attracting portion magnetized by the fixed coil, rotated by the output shaft, and the rotor portion; A rotor-side adsorber that is held by the first adsorber and is adsorbed by the first adsorber to connect the rotor portion to the one;
And a shaft-side adsorber that is held on the other side of the shaft and the second shaft and is adsorbed by the second adsorbing portion of the rotor portion and connects the rotor portion and the other. A device for opening and closing a toilet seat and a toilet lid in a toilet bowl.