KR0167128B1 - Automatic open-close device for toilet seat or toilet cover in a western toilet - Google Patents

Abstract

The present invention is a configuration that can reduce the cost than the conventional configuration of toilet seats that can reliably alleviate the impact at the time of complete closure and completely open without reducing the opening and closing speed of the toilet seat or toilet lid To provide a seat and toilet lid automatic opening and closing device, and a toilet seat and toilet lid automatic opening and closing device of the toilet seat that can suppress the wave phenomenon at the start of opening and closing operation of the toilet seat and toilet lid. For the purpose of

In the automatic opening and closing of the toilet seat or the toilet lid by using a motor, an electric rotation speed retarding means capable of dropping the rotational speed of the motor at a position slightly before the toilet seat and / or the toilet lid is completely opened and closed. Mechanical torque control means using a spring for controlling the opening and closing torque of the toilet seat and / or toilet lid during opening and closing operation of the toilet seat and / or toilet lid, and when the motor is inactive and the toilet seat and / or toilet lid The mechanical clutch device provided in the driving force transmission means is combined so that the transmission of the driving force from the motor to the toilet seat and / or toilet lid when the external force is applied during the opening and closing operation is stopped. In addition to these configurations, friction means provided in part of the means for transmitting the driving force from the motor to the toilet seat and / or toilet lid are combined.

Description

Toilet seat and toilet lid automatic opening and closing device in toilet

1 is a perspective view of a toilet using an automatic opening and closing device according to the present invention.

2 to 4 are explanatory cross-sectional views for explaining the structure and operation of the automatic switching device according to the present invention.

5 is a plan view of the automatic switchgear according to the present invention.

6 is a cross-sectional view taken along the line A-A of FIG.

7 is an explanatory cross-sectional view for explaining when the toilet seat in the open state in the automatic opening and closing device according to the present invention.

8 to 9 are side and sectional views for explaining the planetary gear mechanism (clutch device).

10 is a partial cross-sectional view of the friction means.

11 is an explanatory diagram for explaining the relationship between the actuator and the microswitch.

12 to 13 are explanatory views for explaining the operation of the electric rotational speed delay means and the mechanical torque control means.

* Explanation of symbols for main parts of the drawings

A: Automatic opening and closing device 1: toilet body

4: toilet seat 5: toilet lid

6: device case 7: motor

9: Worm Gear Mechanism 10: Worm Gear

11: Worm wheel 12: Planetary gear mechanism (clutch device)

13: sun gear 15: swing arm

15a: Planetary gear 16: Friction gear

17,18: bracket 19: compression spring

20: rotating shaft 20a: change hole

20b: crank portion 20c: slot

20d: protrusion 21: actuator

22,23: micro switch 30a: friction plate

30b: support shaft 31a: friction plate

31b: spring washer 32: friction means

33,34: micro switch 35: torque control means

36: first spring receiving means 37: second spring receiving means

38: compression spring 39: rotational speed delay means

[Industrial use]

This invention relates in particular to an automatic opening and closing device suitable for use in automatically opening and closing the toilet seat or toilet lid of a toilet.

[Prior art]

Conventionally, as a device that can be opened and closed hygienically without touching the toilet seat and the toilet lid of the toilet bowl, there is a variety of automatic opening and closing device configured to automatically open and close the toilet seat or toilet lid using the driving force of the motor Known.

In the automatic opening and closing device, the toilet seat or the toilet lid collides with the toilet body or the low tank or the toilet seat or the toilet lid at the end of the opening / closing operation, but there is a problem that an impulsive sound is generated at this time. Occasionally, a problem arises that it may be broken.

Therefore, in order to solve this problem, various studies have been made to slow down the opening and closing speed of the toilet seat or the toilet lid. Among them, the toilet seat and the toilet lid have a lower voltage than when they are opened when the valve is closed in consideration of the fact that the load of the toilet seat and the toilet lid is applied, especially when the toilet seat is closed. By driving the method of slowing down the closing speed of the toilet seat or the toilet lid was attempted, but when the toilet seat or the toilet lid is closed, a problem occurs that it takes more time than when opened.

Here, a technique for lowering the supply voltage to the motor at a predetermined position when the toilet seat and the toilet lid are closed and rotating it in the reverse direction has been developed. However, the circuit configuration becomes complicated, resulting in a problem of high production cost.

Next, techniques have been developed to lower the supply voltage to the motor and slow down the closing or opening speed of the toilet seat or toilet lid in the immediate opening or closing of the toilet seat or toilet lid. However, this method is particularly difficult when the toilet seat or the toilet lid is closed, and since the load of the toilet seat or the toilet lid is applied in addition to the inertia as described above, it is not easy in practice and a large motor is not used to achieve effectiveness. In addition to compromising the compactness of the apparatus, the price is more than twice that of the conventional motor, resulting in a problem that the manufacturing cost increases.

[Problem to Solve Invention]

The object of the present invention is to consider such a point, and it is possible to reduce the cost compared to the conventional one, and at the time of complete closure and complete opening without lowering the opening and closing speed of the toilet seat or toilet lid as much as possible. The purpose of the present invention is to provide a toilet seat and toilet lid of the toilet lid which can reduce the impact reliably.

The following object of the present invention is that of the toilet seat and the toilet lid of the toilet seat that can suppress the phenomena at the time of the opening and closing operation of the toilet seat and the toilet lid in the state in which the foregoing object is achieved. It is to provide an automatic switchgear.

[Means for solving the problem]

In order to achieve the above object, the present invention is to automatically open and close the toilet seat or toilet lid by using a motor, the rotational speed of the motor to slightly open and closed position of the toilet seat and / or toilet lid Mechanical torque control means using an electric rotation speed retarding means dropping from the front position, and a spring for controlling opening and closing torque of the toilet seat and / or toilet lid during opening and closing operation of the toilet seat and / or toilet lid; Incorporating a mechanical clutch device that stops transmission of the driving force from the motor to the toilet seat and / or toilet lid when external force is applied during non-operation of the motor and during opening and closing of the toilet seat and / or toilet lid. will be.

In this case, the present invention further combines the above-described means with friction means provided on a part of the means for transmitting the driving force from the motor to the toilet seat and / or the toilet lid.

Further, in any of the above devices, in constructing the mechanical torque control means using the spring, the first spring is rotatably fixed to the toilet seat, the rotary shaft attached to the toilet lid, and the crank portion provided on the rotary shaft. A receiving member, a second spring receiving member slidably mounted at an opposite position of the first spring receiving member, and a spring elastically installed between the second spring receiving member and the first spring receiving member. Can be.

The present invention further provides a first spring receiving member in which the mechanical torque control means using the spring is rotatably fixed to the rotary shaft provided with the toilet seat and the toilet lid and the crank portion provided on the rotary shaft. And a second spring receiving member rotatably mounted at an opposite position of the first spring receiving member, a spring elastically provided between the second spring receiving member and the first spring receiving member, and the rotary shaft. It may be configured as a projection in contact with the first spring receiving member at a slightly forward rotational position of the toilet seat and the toilet lid installed in the toilet seat.

In this case, in the case where the first spring receiving member is rotatably fixed to the crank portion, it can be rotatably fixed to the slot provided in the crank portion.

The present invention is also configured to transmit the driving force to the next gear with the planetary gear interposed therebetween, by using a planetary gear mechanism configured to axially fasten a bracket that swings in one direction to the mechanical clutch device in any of the above devices, Alternatively, a worm gear mechanism is used for the driving force transmission means from the motor, and a mechanical clutch mechanism using the planetary gear mechanism according to claim 6 is installed among the driving force transmission means in front of the worm gear mechanism, and the toilet seat and the toilet bowl are installed. When the lid is moved to the fully open position or the fully closed position, the motor may be rotated slightly in the opposite direction to release engagement between the planetary gear of the planetary gear mechanism and the next gear.

And this invention can install a friction means in a gear after a planetary gear transmits a driving force, or can use a spring washer as a friction means.

[Action]

When configured as claimed in claim 1, even if a motor having a large torque is not used, the electric rotational speed delay means and the mechanical torque control means of this motor are effectively combined, and the toilet seat and the toilet lid by the synergistic effect thereof. Even if the opening and closing operation is performed at a high speed, the gear is slowly decelerated at the position slightly in front of the fully open or closed position, so that it does not suddenly collide with the toilet, the low tank, the toilet seat or the toilet lid.

In addition, even if the toilet seat or the toilet lid is operated manually or pressed or pushed by hand during opening and closing operation, external force can be applied to the device by effectively distributing the additional load by a mechanical clutch device. No obstacles arise.

When configured as in claim 2, the same action as in claim 1 can be obtained, and at the same time, the friction gear does not rotate due to weak torque, and only rotates when certain torque is applied. Done.

When configured as claimed in claim 3, the front axle is stretched and stretched between the cranks in the rotational direction of the rotary shaft, and a torque balance like a two-axis hinge is produced.

When configured as in Claims 4 and 5, the same effect as in Claim 3 can be obtained, and at the same time, the first spring receiving part is located slightly ahead of the complete opening position of the toilet seat or the toilet lid. The protrusion in contact with the member generates torque in the opposite direction, thereby reducing the opening speed of the toilet seat and the toilet lid.

When configured as in claim 6, the planetary gear is normally engaged with the next gear that transmits the driving force by the pressing force applied to the bracket, but when the toilet seat or the toilet lid is exerted with an external force, Resisting and swinging, swinging back, break the engagement with the next gear.

When configured as in claim 7, the same operation as in claim 6 can be obtained and at the same time, when the automatic opening device is not operated, part of the driving force cutting means is always disconnected by the clutch device. Even if the toilet seat or the toilet lid is opened and closed by manual operation, the rotational driving force in this case is not transmitted to the motor and also to the worm gear.

With the configuration of claims 8 and 9, the driving force from the planetary gear is in a state of being firmly engaged with the next friction gear, so that the friction gear rotates only when a certain driving force is transmitted, and the driving force is transferred to the next gear. Will be delivered.

EXAMPLE

1 shows a toilet using an automatic opening and closing device of a toilet seat or a toilet lid according to the present invention, and a casing 2 and a low tank 3 of a hot water cleaning device are installed at the rear of the toilet body 1. The toilet seat 4 is provided between the protrusions 2a and 2a protruding from both ends of the casing 2, with an automatic opening and closing device (not shown) accommodated in the A and B mark portions of the protrusions 2a and 2a. ) And the toilet lid is freely mounted on the toilet seat (1). The automatic opening and closing device is provided with one pair from side to side, and the toilet seat is opened and closed on one side of the toilet seat.

Hereinafter, only the automatic opening and closing operation (A) of the toilet seat will be described, but the automatic opening and closing device of the toilet lid is also slightly different in structure and basically the same structure. Therefore, the description is omitted.

2 to 1, a drive motor 7 is provided on the side of the apparatus case 6 accommodated in the casing 2.

In this connection, a small and inexpensive DC micromotor that can be used in a worm gear is used as the motor 7.

The rotational driving force of the motor 7 is transmitted to the worm gear 10 of the worm gear mechanism 9 with the synchro belt 8 interposed therebetween. Then, the worm wheel 11 engaged with the worm gear 10 rotates, and this rotation driving force is transmitted to the friction gear 16 with a mechanical clutch device composed of the planetary gear mechanism 12 interposed therebetween. That is, by the pin 15b on the swing arm 15 pivotally supported by the shaft 14 supporting the worm wheel 11 with the sun gear 13 rotating together with the worm wheel 11. It is transmitted to the planetary geared gear 15a, and this driving force is transmitted to the friction gear 16 which meshes with the planetary gear 15a.

In particular, as shown in FIG. 2, the planetary gear 15a pivots together with the swing arm 15 and is located at a position away from the friction gear 16 to be transmitted next. However, the motor 7 is turned on. And the rotational driving force is transmitted with the worm wheel 11 and the sun gear 13 interposed therebetween, turning with the swing arm 15 clockwise about half a turn, in particular as shown in FIG. Engages with and rotates the friction gear 16 that transmits the driving force. This engagement direction is rotated clockwise to open along the opening and closing direction of the toilet seat 4 to engage with the upper side of the friction gear 16, and when closed it is turned counterclockwise, in particular as shown in FIG. Meshes with the lower side of the friction gear 16. Wherever engaged, the swingable brackets 17 and 18, which have grasped the planetary gear 15a for each shaft 14, are pressed by the compression spring 19 in one direction, that is, toward the friction gear 16. The engagement becomes firm.

When the toilet seat 4 is completely open or completely closed, as shown in FIG. 11, the micro switches 22 and 23 detecting the actuator 21 mounted on the rotary shaft 20 are interposed therebetween. Since a reverse current of about 0.5 seconds flows to the motor 7 and rotates in the reverse direction, the planetary gear 15a meshed with the friction gear 16 returns to the standby state with the swing arm 15. Therefore, there is no fear that an improper state such as worm gear mechanism 9 is broken when the toilet seat 4 is manually opened and closed. In addition, when the toilet seat 4 is pressed by hand or a pressurized external force is applied during opening / closing of the toilet seat 4, an abnormal state in which the rotation of the friction gear 16 is stopped or accelerated occurs. Done. Then, the planetary gear 15a swings clockwise for every bracket 17 and 18 hung on the support shaft 17a against the elasticity of the compression spring 19, and clockwise or together with the swing arm 15. It rotates counterclockwise to exit the friction gear 16, and turns once to engage the friction gear 16 again. Moreover, this turning direction varies depending on the opening and closing direction of the toilet seat 4. In this way, the mechanical clutch device composed of the planetary gear mechanism 12 makes it possible to open and close the toilet seat easily and manually at the time of non-operation of the automatic switching device A, and at the same time, at the time of operation of the automatic switching device. Even if an external force is applied to the toilet seat 4, the parts of the apparatus, including the worm gear mechanism 9, are not exerted or impaired at all. The rotational driving force transmitted from the planetary gear 15a to the friction gear 16 is fixed to the rotary shaft 20 with the reduction gears 16a, 24 to 28 supported by the support shafts 30a and 30b interposed therebetween. Slowly transmitted to the gear 29, the toilet seat 4 mounted with the mounting portion 4a is opened and closed by the deformation hole 20a provided in the axial direction of the revolving shaft 20. The friction gear 16 is fixed to the support shaft 30a so as to be frictionally rotated with a friction means 32 composed of a friction plate 31a, a spring washer 31b, and a washer 31c interposed therebetween. In addition, the friction means 32 is not limited to the embodiment, there may be a method of caulking the end of the support shaft (30a), and furthermore, a hinge having a known friction function in the usage of the washer and the type of spring washer, etc. Various forms available for use are contemplated.

The fully closed position of the toilet seat 4 is detected by the microswitches 22 and 23 operated by the actuator 21 provided in the rotary shaft 20, and the supply of current to the motor 7 is stopped. Furthermore, in this invention, after the toilet seat 4 is left in the fully open position or the fully closed position, the motor 7 is rotated in the opposite direction by about 0.5 seconds by the microswitches 22 and 23. As described above.

In addition, the automatic switching device A according to the present invention, the rotation speed delay means 39 for lowering the supply voltage to the motor 7 than the rated voltage immediately before the fully open position or the fully closed position of the toilet seat 4. The rotation speed of the toilet seat 4 is reduced, and thus the opening and closing speed of the toilet seat 4 is adopted. Therefore, the detection of the opening / closing position of the toilet seat 4 is also arranged around the same actuator 21. It is made by one microswitch (33, 34). Originally, this can be done using a rotary encoder or using something like a photosensor.

35 shows a mechanical torque control means. This allows the toilet seat 4 and the toilet lid 5 to be opened and closed even when a small low-power motor is used, and at the same time the toilet seat 4 or the toilet lid 5 can be opened due to the pressing force caused by its own load, especially when the toilet seat 4 or the toilet lid 5 is closed. Considering the strong impact on the toilet seat and the toilet seat, the mechanical torque control means 35 is an arc-shaped slot 20c provided in the crank portion 20b of the rotary shaft 20, as shown in the figure. And the first spring receiving member 36 engaged with the pin 36a therebetween, the second spring receiving member 37 slidably hung on the pin 37a at an opposite position thereof, and the first spring receiving member 36. It consists of a compression spring 38 elastically installed between the member 36 and the second spring receiving member 37, wherein the rotary shaft 20 is located just before the vortex opening position of the toilet seat 4, in particular a third As shown in FIG. 4 and FIG. 4, the first spring receiving member 36 is in contact with the first spring receiving member 36. Has projections (20d) with the rotation of the rotary dial to the brake shaft 20 is installed.

12 and 13 are diagrams for explaining the operation method of the electric rotational speed delay means and the torque curve diagram of the mechanical torque control means. According to the drawing, an opening time indicated by ⓛ and a closed area indicated by ③ according to the drawing. In this case, the rotation of the motor is rotated to the rated voltage to open and close the toilet seat quickly, but in the areas of ② and ④, which are slightly ahead of the fully open and closed positions, respectively, the motor is supplied with a voltage lower than the rated voltage, It will drop and open the toilet seat slowly.

On the other hand, the torque generated by the compression spring 38 during the opening and closing operation of the toilet seat generally falls below the automatic moment of the toilet seat 4, but at the time of converting the motor rotational speed by the electric rotational speed delay means, the compression spring The deceleration operation can be made gentle by causing the torque of (38) to exceed the self-weight moment.

[Effects of the Invention]

When configured as claimed in claim 1, even when a large motor is not used, the toilet seat or the toilet lid can be opened and closed at a high speed, and at the same time, a strong impact or impact sound is prevented from being generated at its fully open or closed position. In addition, by employing a mechanical clutch mechanism, it is possible to prevent the gears from becoming excessive during operation, so that a gear made of resin that can be manufactured at low cost can be used for the gear, and By being able to adopt, it is possible to use a cheap DC micro coater, which can significantly reduce the manufacturing cost.

When configured as in claim 2, the same effect as in claim 1 can be obtained, and the opening and closing operation of the toilet seat or the toilet lid is performed only when a certain torque is applied to the friction gear. The so-called wave phenomenon at the time of automatic opening and closing can be suppressed.

When configured as claimed in claim 3, the opening and closing operation of the toilet seat and the toilet lid is controlled by a torque balance such as a two-axis hinge generated by a mechanical torque control means, and thus, a large expensive motor having a large torque. Even if you don't use it, you can open and close smoothly with a cheap small motor, and decelerate at a position slightly ahead of the toilet seat or the toilet lid, or close the toilet seat. It becomes possible.

When configured as in claims 4 and 5, the same effect as in claim 3 can be obtained, and at the same time, the deceleration at the position slightly ahead of the toilet seat or the toilet lid, especially in the completely open position, is more gentle. You can be sure.

According to claim 6, when excessive force is applied to the toilet seat or the toilet lid during opening / closing of the toilet seat or the toilet lid, the clutch device is automatically disconnected and automatically connected again. It is possible to prevent the group from failing or breaking.

When configured as in claim 7, the same effect as in claim 6 can be obtained, and when the automatic switchgear is not operated, the toilet seat or the toilet lid can be opened and closed manually, thereby further damaging the worm gear mechanism. You can certainly prevent it from happening.

When configured as in claims 8 and 9, the driving force from the planetary gear is simply transmitted to the friction gear only when a predetermined torque is applied while being firmly engaged with the friction gear. When the toilet lid is automatically opened and closed, the so-called wave phenomenon can be suppressed more reliably.

Claims (9)

In the toilet seat or toilet lid automatic opening and closing device of the toilet seat for automatically opening and closing the toilet seat or toilet lid using a motor, the rotational speed of the motor is slightly changed to the full opening and closing position of the toilet seat and / or the toilet lid Mechanical torque control means using an electric rotation speed delay means capable of reducing the front position, and a spring for controlling the opening and closing torque of the toilet seat and / or toilet lid during opening and closing operation of the toilet seat and / or toilet lid; Mechanical clutch device installed in the driving force transmission means to stop the transmission of the driving force from the motor to the toilet seat and / or toilet lid when external force is applied when the motor is inactive and when the toilet seat and / or toilet lid is opened or closed. Toilet seat and toilet lid automatic opening and closing device of the toilet characterized in that combined. 2. The toilet seat or toilet lid automatic opening and closing of the toilet according to claim 1, wherein the mechanical clutch device is combined with friction means installed on a part of the means for transmitting the driving force from the motor to the toilet seat and / or the toilet lid. Device. The first spring receiving member according to claim 1 or 2, wherein the mechanical torque control means using the spring is rotatably fixed to the rotating shaft on which the toilet seat and the toilet lid are mounted, and the crank portion provided on the rotating shaft, A second spring receiving member rotatably mounted at an opposite position of the first spring receiving member, and a compression spring elastically installed between the second spring receiving member and the first spring receiving member. Toilet seat and toilet lid automatic opening and closing device of toilet. The mechanical torque control means using a spring includes: a rotating shaft on which a toilet seat and a toilet lid are mounted; and a first spring receiving member rotatably fixed to a crank portion provided on the rotating shaft. And a second spring receiving member mounted so as to be swingable at an opposite position of the first spring receiving member, a compression spring elastically installed between the second spring receiving member and the first spring receiving member, and the toilet bowl. Toilet seat and toilet lid automatic opening and closing device of the toilet seat characterized in that it consists of a projection installed on the rotating shaft in contact with the first spring receiving member in a slightly forward rotational position of the seat and / or the toilet lid completely open position . 3. A mechanical torque control means using a spring, a rotary shaft equipped with a toilet seat or toilet lid, and a first spring receiving member rotatably fixed to a crank portion provided in the rotary shaft. And a second spring receiving member swingably mounted at an opposite position of the first spring receiving member, and a compression spring elastically installed between the second spring receiving member and the first spring member, wherein the crank In the rotatably fixing the first spring receiving member to the portion, the toilet seat and the toilet lid of the toilet seat, characterized in that the rotatably fixed to the slot installed in the crank portion. 3. The mechanical clutch device according to claim 1 or 2, wherein the mechanical clutch device is configured to transmit the driving force to the next gear with the planetary gear interposed therebetween by using the planetary gear mechanism axially attached to the bracket applied with the swing in one direction. Toilet seat and toilet lid automatic opening device of the toilet. The toilet seat according to claim 1 or 2, wherein a worm gear mechanism is used for the driving force transmission means from the motor, and a mechanical clutch device using the planetary gear mechanism according to claim 6 is installed from the worm gear mechanism in front of the driving force transmission means. (B) When the toilet lid is moved to the fully open position or the fully closed position, the motor is rotated in a slightly opposite direction, so that the planetary gear of the planetary gear mechanism is released by engaging with the next gear transmitting the driving force. Toilet seat or toilet lid automatic opening and closing device. 3. The toilet seat and toilet lid automatic opening and closing device according to claim 2, wherein the friction means is installed on the next gear to which the planetary gear transmits driving force. The toilet seat and toilet lid automatic opening and closing device of claim 8, wherein a spring washer is used as the friction means.