JP2003253725A - Wash-water feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wash-water feeder, in which a speed setting means can be replaced easily, in the wash-water feeder having the speed setting means utilizing electromotive force (an eddy current) generated in a rotor rotated in a magnetic field. <P>SOLUTION: In the wash-water feeder with a mechanism section composed of a spring in which the operation of a user is stored as energy, a cam rotated by energy stored in the spring, a valve driven by the cam and used for opening and closing a supply flow path for wash water and a step-up gear row connected to the cam and the speed setting means having the rotor rotated in the magnetic field by a connection to the step-up gear row and setting the rotary speed of the cam by utilizing electromotive force generated in the rotor, the speed setting means and the mechanism section are formed in separate bodies. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning water supply device that manages the supply time of cleaning water without using electricity.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 6-20576 discloses a valve switching timer unit for switching the operating time of a plurality of valve mechanisms for opening and closing a fluid passage, and a spring when a stored spring is released, as shown in FIG. Of the eddy current governor that regulates the rotation of the hoisting shaft and the rotation of the hoisting shaft that is rotated by the release force of the spring are respectively transmitted, and each has a cam shape corresponding to the operating time of the plurality of valve mechanisms. A switching timer unit for manual operation is disclosed which comprises a cam.

With the above structure, the operating time of a plurality of valve mechanisms can be controlled without using electricity, and the device becomes energy-saving and environmentally friendly. Especially for the flush water supply device for toilet bowls, which does not operate at the time of power failure and disrupts the user's life, a separate device that can operate at the time of power failure is required despite the electric type. However, since it is a manual type, it does not require such a device and has a simple structure.

[0004]

The eddy current type governor mechanism is a rotor made of a metal plate such as aluminum or copper and two annular magnets in which S poles and N poles sandwiching the rotor are alternately arranged in the circumferential direction. It consists of a plate, and a gear is connected to one end of the rotor shaft, and the spring torque of the mechanism is transmitted to the rotor via a speed increasing gear that meshes with this gear.The mechanism and the eddy current type governor mechanism are integrated. Has become
If the eddy current governor is damaged, the eddy current governor mechanism alone cannot be replaced.

The present invention has been made in view of the problems of the prior art, and it is easy to provide a cleaning water supply device having a speed setting means utilizing an electromotive force (eddy current) generated in a rotor rotating in a magnetic field. It is an object of the present invention to provide a cleaning water supply device in which the speed setting means can be replaced.

[0006]

According to a first aspect of the present invention, there is provided a spring for storing a user's operation as energy,
A mechanical unit including a cam that rotates by the energy stored in the spring, a valve that is driven by the cam to open and close a supply path of wash water, and a speed-up gear train that is connected to the cam. And a speed setting unit that has a rotor that is connected to the speed increasing gear train to rotate in a magnetic field, and that uses the electromotive force generated in the rotor to set the rotation speed of the cam. In the water supply device, the speed setting means and the mechanism portion are provided separately, and when the speed setting means is damaged, only the speed setting means can be replaced. Further, the cleaning water supply time can be easily changed by replacing the cleaning water supply device with a speed setting means having a different braking force, which is also a preferable mode for unitizing the cleaning water supply device.

According to another aspect of the present invention, the speed setting means is attached to the mechanical portion, and the rotor shaft and the final stage gear shaft of the speed increasing gear train are substantially connected by elastic connecting means. Since they are connected so as to be on the same line, even if the shaft centers of the rotor shaft and the gear shaft are slightly deviated from each other, the elastic body can absorb the deviation and suppress damage to the bearing portions of the rotor shaft and the gear shaft. It is possible to suppress the fluctuation of the braking force of the speed setting means and the fluctuation of the gear loss due to the damage of the bearing portion, and it is possible to maintain sufficient reliability even if the speed setting means and the mechanism portion are provided separately.

In the third aspect, the connecting means is a tube made of an elastic body, and the connecting means is realized with a simple structure.

According to a fourth aspect of the present invention, the connecting means is composed of a joint portion that fits the rotor shaft and the final stage gear shaft, and an elastic portion that connects the joint portions and absorbs misalignment. It can be said that this is a preferable mode in order to increase the choices of the shape and material of the elastic portion, and to maintain sufficient reliability even if the speed setting means and the mechanism portion are provided separately. Further, even when the rotor shaft and the gear shaft have different diameters, they can be easily attached, and the versatility is improved even when the speed setting means having different braking forces are replaced.

According to a fifth aspect of the present invention, the cross section of the rotor shaft and the gear shaft of the final stage and the cross section of the joint portion of the connecting means have a shape that restrains the rotation direction. It is possible to suppress the slippage of the joint part of the, and it is possible to reliably transmit the energy stored in the spring to the speed setting means, and maintain sufficient reliability even if the speed setting means and the mechanism part are separated. Therefore, it can be said that it is a preferable form.

According to a sixth aspect of the present invention, the washing water supply device includes a pilot valve provided in a washing water supply passage and a pilot passage communicating with a back pressure chamber of the pilot valve. Since the passage is opened and closed by the valve and the water supply flow passage is opened and closed by utilizing the energy of water pressure, the amount of energy given by the user during operation can be reduced, and the flow rate is relatively large. Thus, the flush water supply device of the present invention can be provided for washing flush toilets, bathtubs, and bathrooms that require cleaning.

According to a seventh aspect of the present invention, there is provided a flush toilet bowl which is equipped with the flush water supply apparatus according to the sixth aspect and which supplies tap water supplied from a water pipe to a toilet bowl for a predetermined time based on a user's operation. It is possible to manage the supply time of the toilet flush water without the need of supplying electricity. Like a toilet bowl
As for the electric washing water supply means, a device that can operate at the time of power failure is required separately for things that do not operate at the time of power failure and cause confusion to users' lives, but such a device is not necessary and simple. It becomes possible to provide a flush toilet with various configurations.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view of a cleaning water supply device 20 in this embodiment. 2 is a block diagram of the second cam, FIG. 3 is a block diagram of the clutch, FIG. 4 is a block diagram of the first cam, and FIG. 5 is a block diagram of the third cam. The flush water supply device 20 is provided with an opening / closing valve 7 and a switching valve 4. Cleaning water is supplied to the opening / closing valve 7 from the water inlet 9, and the opening / closing valve 7 is formed by the valve 6 of the movable body and the valve seat 23 facing the movable body 7. When the opening / closing valve 7 is opened / closed, the cleaning water is discharged from the water outlet 8. To do. Similarly, the switching valve 4 is supplied with washing water from the water inlet 2 and forms the switching valve 4 with the valve 3 of the movable body and the valve seat 22 facing the movable body 4. When the switching valve 4 is opened / closed, the washing water is discharged from the water outlet 5. It is designed to be discharged. The on-off valve 7 and the switching valve 4 are provided with valves 3 and 6 so that they are closed by the water supply pressure when not operating.
Located on the upstream side of 2 and 23, there is no need to set the valve drive energy in anticipation of the site where the water supply pressure is high, the energy required for valve opening can be reduced, and the operating force becomes lighter. . Since the water pressure is applied to the on-off valve 7,
It has a structure that improves pressure resistance.

Next, the operation of the wash water supply device 20 will be described. When the operation unit 19 is rotated clockwise or a pressing operation is performed, the first gear 18 and the first cam 17 directly connected to the operation unit 19 rotate. When the valve 6 is not operated, the valve 6 is pressed against the opposing valve seat 22 by the water pressure, and the open / close valve 7 is closed. The first cam 17 drives the valve 6 in the opening direction with the rotation of the operation unit 19. The valve 6 is gradually driven to reduce the peak value of the operating force, and when the predetermined rotation angle is reached, the on-off valve 7 is fully opened. In synchronization with this, the first gear 18 also rotates, causing the second gear 15 to rotate counterclockwise. The clutch 14 is directly connected to the second gear 15,
Further, since the coil spring 24, which is the drive source, is directly connected, the clutch 14 is disengaged while the second gear 15 is rotating in the counterclockwise direction, the operating force is transmitted only to the coil spring 24, and the drive energy is accumulated.

The operation unit 19 is provided with a stopper (not shown), and is configured so that the operation of the operation unit 19 is restricted when a predetermined rotation angle β or a predetermined operation amount is reached and no further operation is possible. ing. The drive energy accumulated in the coil spring 24 reaches the maximum when the stopper is reached, and when the operating portion 19 is opened at this time, the clutch 14 is engaged and the drive force of the coil spring 24 is transmitted to the second cam 13. It should be noted that the clutch 14 does not engage when the operating portion 19 is not operated for a predetermined rotation angle α or more than a predetermined amount, and the second cam 13 is not driven even if the operating portion 19 is opened and the operating portion is not operated. 19, the first gear 18, the first cam 17, and the valve 6 are returned to the initial position as they are.

The clutch 14 changes the rotation angle θ of the operating portion 19 by α
It is configured to engage with each other when set to a position of <θ ≦ β and opened. In this case, there is an idle running section in which the second cam 13 is not driven by (θ-α). The third gear 12 and the third cam 10 are directly connected to the second cam 13. Both the first cam 17 and the second cam 13 are configured to be able to drive the valve 6, and when the clutch 14 is engaged and the second cam 13 is driven, the first cam 17 rotates counterclockwise. Valve 6
Is driven in the closing direction, but the valve 6 is
7 to the second cam 13 and maintain the position of the valve 6. The second cam 13 has a shape that keeps the opening amount of the opening / closing valve 7 substantially constant until the flush water supply device 20 stops operating. The third gear 12 meshes with the fourth gear 25 connected to the rotation shaft of the speed setting means 11, drives the speed setting means, and causes the cam rotating body 21 and the first cam 17 to move by the braking force generated by the speed setting means 11. Drive at a substantially constant speed.

The cam rotating body 21 is composed of a second cam 13, a third gear 12, and a third cam 10. Third cam 1
0 drives the valve 3 and controls the opening and closing of the switching valve 4. As the cam rotor 21 is driven, the third cam 10 drives the switching valve 4 into an open state to start water flow after a predetermined time has passed, and after a predetermined time, the switching valve 4 is closed to stop water flow. After a predetermined time, the second cam 13 closes the open / close valve 7 to stop all water flow. The cam rotor 21 continues to run idle for a predetermined time even after the on-off valve 7 is closed, for the purpose of ensuring water shutoff in consideration of mechanical tolerances and design tolerances. When the coil spring 24 returns to the initial position, the wash water supply device 20 stops and enters the initial state.

In the claims, the valve indicates the opening / closing valve 7, the cam indicates the second cam 17 and the first cam 17 of the cam rotating body 21, and the speed increasing gear train includes the third gear 12 and the fourth gear 2.
Equivalent to 5.

FIG. 6 is a relationship diagram showing the relationship between the rotation angle of the operating portion 19 and the opening amount of the valve 6 in this embodiment. When the operation portion 19 is rotated clockwise, the valve 6 is driven in the opening direction along the curve of the first cam 17 shown in FIG. When the rotation angle of the operating portion 19 is rotated to α or more and opened, the operating portion 19 rotates counterclockwise and the valve 6 is driven in the closing direction along the curve of the first cam 17. When the rotation angle of the operating portion 19 reaches the position α, the clutch is engaged and the first cam 1
7 and the second cam 13 start rotating counterclockwise at a substantially constant speed by the speed setting means 11. When the valve 6 is further driven in the closing direction and reaches a predetermined opening amount, the valve 6 transfers from the first cam 17 to the second cam 13 and reaches a predetermined angle along the curve of the second cam 13 shown in FIG. The open state is maintained, and the valve 6 is suddenly driven in the closing direction at a predetermined rotation angle.

By directly driving the valve 6 in the opening direction by the first cam 17, the energy accumulated in the coil spring 24 is required only after the valve is opened, and the set load value of the coil spring 24 can be reduced. Therefore, the operating force can be reduced. Further, even if the water supply pressure is high, the on-off valve 7 can be reliably driven to open.

The drive accumulated in the coil spring 24 in this way
Based on the kinetic energy, the cam rotating body 21 has a substantially constant speed.
The second cam 13 and the third cam are adjusted and driven.
Precise timing predetermined by 10 structures
The on / off valve 7 and the switching valve 4 are opened and closed by
Reliable water flow control by the valve 7 and the switching valve 4 is realized.
Note that, here, the open / close valve 7 is opened for a predetermined time T₁later,
The switching valve 4 is driven to open, and then the predetermined time T_TwoSwitch later
The valve 4 is driven to be closed, and a predetermined time T_ThreeThe on-off valve 7 later
It is driven closed. That is, when the on-off valve 7 and the switching valve 4 are in full operation
The interval T is T = T ₁+ T_Two+ T_ThreeRepresented by T, T₁, T
_Two, T_Three2nd cam 13 and 3rd cam 1
Accurately controlled and controlled by 0 shape and speed setting means 11.
Controlled.

The arrows shown in FIGS. 2A, 3, 4, and 5 indicate the respective rotation directions after the operating portion 19 is opened. Note that FIG. 2B shows the engagement groove of the second cam 13 that engages with the clutch 14 depending on the rotation direction.

FIG. 7 shows an exploded view of the speed setting means 11. The permanent magnets 72, 73 are formed on the inner surface of the case 71 made of zinc steel plate.
Are physically fixed, and case covers 74 and 75 made of resin or metal are integrated with the case 71. The case covers 74 and 75 are provided with bearings 76 and 77 that are integrated by press fitting or the like, and the rotors 78 are installed by the bearings 76 and 77 so as to be rotatable while maintaining a predetermined distance from the permanent magnets 72 and 73. There is. The bearings 76 and 77 are made of copper-based porous metal having a relatively low hardness impregnated with lubricating oil, and have excellent slidability and wear resistance. The rotor 78 includes a rotating shaft 79 made of stainless steel, an iron core 81 around which a copper wire 80 is wound, and a commutator 82 to which both ends of the copper wire 80 are connected, and the end portion 83 of the rotating shaft 79 is rotated. Electromagnetic conversion is performed and electromotive force is generated in the commutator 82. In order to take out electric power from the commutator 82, brushes 84 and 85 made of silver-based or copper-based metal having a low electric resistance value are in contact with each other. The brushes 84 and 85 are fixed at one end while being insulated from the case cover 75, and use the elasticity of metal to maintain a constant contact surface pressure with the commutator. Further, the brushes 84 and 85 are connected to the output terminals 86 and 87 which are insulated and fixed to the case cover 75, and the output terminals 86 and 87 may be opened or short-circuited or used with a predetermined electric power. You may connect a dynamic load. By changing the electric load, the speed setting means 1
Since the braking force of No. 1 is changed, the driving speed of the cam rotating body 21 can be easily set.

Cleaning water supply time ≈ valve opening time (T)
Is the effective operating angle of the cam: θ and the average angular velocity of the cam (ω)
Determined by The angular velocity (ω) of the cam is proportional to the total resistance value sum (R) of the resistance value (r) of the coil which is an electric conductor of the speed adjusting means 11 and the resistance values (Ra) connected to the output terminals 86 and 87. There is a relationship, and the cleaning water supply time (T) is
It can be calculated by the following approximate formula. T = θ / ω = α × θ / R = α × θ / (r + Ra) α: constant Therefore, by connecting the variable resistor 91 to the output terminals 86 and 87 and changing the resistance value (Ra), it is easy. Although it is possible to change the cleaning water supply time, there is a limit to changing the angular velocity of the cam. To further reduce the angular velocity of the cam, it is necessary to change the unique constant (α) of the speed setting means 11, and the speed adjusting means. Eleven replacements are needed.

The speed setting means 11 includes an opening / closing valve 7, a coil spring 24, a clutch 14, a cam rotor 21, and a third gear 12.
The mechanism case 97 and the flange portion 98 of the speed setting means 11 are attached by screws as a separate body from the speed setting means 11, so that even if the speed setting means 11 is damaged, only the speed setting means 11 can be easily installed. Can be exchanged. Further, the speed setting means 11 having a different braking force can be easily replaced, and the cleaning water supply time can be significantly changed, which is also a preferable mode for unitizing the cleaning water supply device 20.

8 and 9 are configuration diagrams showing the connection configuration of the speed setting means 11 and the speed increasing gear train. FIG. 8 is a configuration diagram in which the rubber tube 99 is connected so as to be substantially on the same line. Show. The fourth gear 25 uses a part of the mechanism case 97 as a bearing, and the shaft 100 of the fourth gear 25 and the rotating shaft 79 of the speed setting means 11 are connected by a rubber tube 99. An opening 105 is provided in the mechanism case 97 in consideration of workability when connecting the rubber tubes 99. There is a method of closing the opening 105 with tape or the like in order to prevent dust from entering the opening 105 after attachment, but a door (not shown) that can be opened and closed is attached. The speed setting means 11 is fixed to the mechanism part case 97 with a screw by a flange part 98 (not shown). However, the speed setting means 11 has a cylindrical fitting part 101, which has a relatively strict dimensional accuracy, and a mechanical part case. The shaft 100 of the fourth gear 25 and the rotating shaft 79 of the speed setting means 11 are less misaligned with each other. However, even with this configuration, misalignment occurs due to variations in the bearing portion dimensions of the fourth gear 25, variations in the speed setting means 11 fitting portion 101 dimensions, and mechanism portion case 79 dimensions. If there is a misalignment, an excessive radial load is applied to the bearing portion of the speed setting means 11, which may cause a change in the wash water supply time or a malfunction due to a change in the braking force of the speed setting means 11.

By connecting the speed setting means 11 and the speed increasing gear train to an elastic body such as a rubber tube 99, the misalignment can be absorbed with a simple structure, and the above-mentioned problems can be suppressed. Even if the speed setting means 11 and the mechanism section are provided separately, sufficient reliability can be maintained.
There is a method of connecting with a coupling or the like instead of the rubber tube 99, but the connecting portion becomes large and the structure is not simple.

FIG. 9 is a diagram showing a construction in which the joining means 103 and 104 made of resin and the elastic portion 102 made of rubber are connected so as to be substantially on the same line. This connecting means is integrated when the rubber elastic portion is formed after the resin joint portions 103 and 104 are formed. Also, the resin joint 10
Slits 3 and 104 are provided with slits (not shown) and are connected to the shaft 100 of the fourth gear 25 and the rotating shaft 79 of the speed setting means 11 by utilizing the elasticity of the resin. Compared to the rubber tube 99, the connection with the shafts 79 and 100 can be made stronger, and the rubber elastic portion 102 can absorb the misalignment, so that the reliability of the connecting means can be improved. . Further, even when the shaft 100 of the fourth gear 25 and the rotating shaft 79 of the speed setting means 11 have different diameters, they can be easily attached, and versatility is improved even when the speed setting means 11 having different braking force is replaced. .

Here, the connecting means in which resin and rubber are combined is shown, but the combination is not limited to this. It goes without saying that the same effect can be obtained by dividing the connecting means into the joint portions 103 and 104 that functionally fit to the shaft and the elastic portion 102 that absorbs the misalignment and integrally forming them. The elastic portion 102 may be made of resin or metal as long as it is more easily deformed than the joint portions 103 and 104 and can absorb the misalignment.

FIG. 10 shows a joint cross section of the shafts 79 and 100 and the connecting means. Shaft 7 as shown in FIGS. 10 (a) and 10 (b)
By providing a shape in which the connecting means is meshed with the connecting means to restrict the rotation direction, the connection with the shafts 79 and 100 can be further strengthened. It is possible to reliably transmit the energy stored in the coil spring 24 to the speed setting means 11, and it can be said that this is a preferable form in order to maintain sufficient reliability even if the speed setting means 11 and the mechanism section are separated.

FIG. 11 is a sectional view of a valve body 151 comprising a main valve portion 152 and a switching valve portion 156 of the pilot-operated wash water supply device 20, and FIG. 12 is a diagram showing its operating principle. In this case, the flush water supply device 20 includes the open / close valve 7 of FIG.
And the switching valve 4 is used as a pilot valve of the valve body 151. With this configuration, since the energy of tap water is used to open and close the on-off valve 7 and the switching valve 4, the operating force can be significantly reduced. Therefore, the flush water supply device of the present invention can be provided for washing a flush toilet, which requires a relatively large flow rate, and for washing a bathtub and / or a bathroom. The valve body 151 is composed of a main valve portion 152 that operates by opening and closing the on-off valve 7, and a switching valve portion 156 that operates by opening and closing the switching valve 4, and is fixed by a snap fit at a fastening portion 155. The main valve portion 152 is composed of a main valve 154 and a water supply port 153. The switching valve unit 156 includes the first switching valve 15
9, second switching valve 165, vacuum breaker 163
It consists of and. A constant flow valve 172 that controls the flow rate to be substantially constant regardless of the water supply pressure is inserted in the fastening portion 155. The main valve 154 and the first switching valve 159 are equipped with a pilot port 171 and a pilot port 160, respectively. Note that the constant flow valve 172 may be inserted in the flow passage inside the water supply port 153. The constant flow valve 172 is composed of a substantially trapezoidal coil spring, and the void area of the coil spring changes depending on the front-back pressure difference. When the pressure difference is large, the amount of displacement of the coil spring is large and the air gap area is small, and when the pressure difference is small, the amount of displacement of the coil spring is small and the air gap area is large. Since it passes through the void at a flow velocity proportional to the square root of the pressure difference, the spring constant and the structure of the coil spring are determined so that the void area is inversely proportional to the square root of the pressure difference.

The wash water supplied from the water supply port 153 to the main valve portion 152 is controlled by the main valve 154 to stop and flow.
After passing through the constant flow valve 172, it flows into the switching valve unit 156. Since the pilot port 160 is normally closed and the first switching valve 159 is closed, the inflowing cleaning water passes through the second inflow passage 157 and pushes up the second switching valve 165 to the second outflow passage 162. Flowing. Next, when the pilot port 160 is opened, a part of the washing water passes through the first inflow passage 158 and the small hole portion 173 formed in the first switching valve 159, and then the pilot port 160.
Is discharged from the outside. Since the pressure decreases when passing through the small hole portion 173, the back pressure of the first switching valve 159 decreases and the wash water is driven to the open state, and the wash water flows to the first outflow passage 161. If there is water flowing into the first outflow passage 161, the first outflow passage 16
1 communicating with the downstream side of the first outflow path 1 by a load (not shown)
The pressure of 61 increases, and this pressure raises the back pressure of the second switching valve 165 via the communication port 164. When the predetermined back pressure is reached, the second switching valve 165 is driven to the closed state and the flow to the second outflow passage 162 is stopped. By controlling the opening / closing of the pilot port 160 in this manner, the switching valve unit 156 causes the first outflow passage 161 and the second outflow passage 162 to operate.
Is selectively switched to pass water to the outside. Main valve section 152
The same applies to the above, and by controlling the open / closed state of the pilot port 171 and passing through the small hole portion 166, the back pressure changes, and the opening / closing of the main valve 154 can be controlled. The vacuum breaker 163 is provided when the valve body 151 is in a non-operating state and water flow is stopped, or when the first water passage 16 is provided.
1 and / or the second water passage 162 is opened to the atmosphere when it is in a negative pressure state, and a predetermined air gap is provided to the first outflow passage 161, the second outflow passage 162, and a water passage (not shown) communicating with these passages. Set up.

Next, the operation of the pilot-operated wash water supply device 20 will be described. The water inlet 9 communicates with the pilot port 171, and the water inlet 2 communicates with the pilot port 160. Both the water outlet 5 and the water outlet 8 are open to the atmosphere. As a result, the main valve 154 is opened and closed by opening and closing the on-off valve 7.
Is driven to open and close, and the first switching valve 1 is opened and closed by opening and closing the switching valve 4.
59 is opened and closed. That is, by applying a predetermined operation to the operating portion 19, the first cam 17 drives the open / close valve 7 to open, and in conjunction with this, the main valve 154 is opened and the wash water flows out from the second outflow passage. . When the user releases his / her hand from the operation section 19, the first gear 18 is reversed by the coil spring 24, and the clutch 14 is engaged. The cam rotating body 21 is
The braking force by the speed setting means 11 and the load of the coil spring 24 balance each other, and the rotational driving is performed at a predetermined speed. The open state of the on-off valve 7 is maintained by the second cam 13 of the cam rotating body 21. The third cam 10 of the cam rotating body 21 drives the valve body 4 to open after a predetermined time T ₁ , and in conjunction with this, the first switching valve 15
Since 9 is in the open state and the second switching valve 165 is in the closed state, the outflow from the second outflow passage 162 is stopped, and the water is outflowed from the first outflow passage 161 instead. Next, a predetermined time T ₂
Later, the third cam 10 drives the valve body 4 to close, and the outflow passage is switched to the second outflow passage 162 in the same manner. Further the second cam 13 is on-off valve 7 is closed the drive after a predetermined time T _3, the main valve 15
By closing 4 all the water flow is stopped. Finally, the cam rotor 21 runs idle for a predetermined time and stops its operation.

FIG. 13 shows the relationship between the operation of the on-off valve 7 and the switching valve 4 and the flow of water from the valve body 151 in this embodiment. FIG. 13A shows a timing chart of water flow, in which the vertical axis represents the water flow rate and the horizontal axis represents time.
Further, the water flow rate indicates the water flow rate of the first outflow channel 161 and the water flow rate of the second outflow channel 162, and the total water flow rate which is the sum of both. FIG. 13B shows a timing chart of the opening degrees of the on-off valve 7 and the switching valve 4, and the vertical axis represents the opening degree and the horizontal axis represents time. In addition, the opening degrees indicate the opening degrees of the on-off valve 7 and the switching valve 4, respectively. t =
T _s represents the time when the operation unit 19 is opened after a predetermined amount of operation or more, and t = T _e represents the time when the wash water supply device 20 stops all operations. T _a and T _c are the times when the first switching valve 165 is in the open state and the first outflow passage 161 is in the water flow state, and T _b is in the second switching valve 166 is in the open state and the second outflow passage 162 is in the open state. Represents the time in water. T _x represents the time from when the switching valve 4 is driven to the open state until the first switching valve 165 is closed and the second switching valve 166 is opened, and T _y is the switching valve 4 driven to the closed state. After that, the first switching valve 165
Represents the time until the second switching valve 166 is opened and the second switching valve 166 is closed. T _g is the time from when the on-off valve 7 is driven to the closed state until the main valve 154 is closed and all water flow is stopped. Represents time. Each of T _x , T _y , and T _g represents the operation delay time of the valve body 151 controlled by the opening / closing operation of the opening / closing valve 7 and the switching valve 4. Since these operation delay times are peculiar times determined by the structure of the valve, etc., they can be grasped in advance, and the operation delay time is added to the desired water passage time, and the opening / closing valve 7 and the switching valve 4 are driven. Just set a time. Here,
_{T b} = T 2 _{-T x,} a _{T c = T 3 + T g} -T y. T
_z is an idle time provided in the wash water supply device 20,
The cleaning water supply device 20 stops all operations and returns to the initial position after T + T _z (t = T _e = T _s + T + T _z ) after t = T _{S when the} operation unit 19 is opened. In this way, even after the control of the on-off valve 7 and the switching valve 4 is completed, by providing a predetermined idling distance, it is possible to reliably stop the water even if the mechanical accuracy is deteriorated due to aging or the like.

FIG. 14 is a block diagram of a flush toilet 30 including the flush water supply device 20 in this embodiment. A valve body 151 including a pilot operated main valve portion 152 and a switching valve portion 156 is provided in the middle of the pipe 48 connected to the water pipe. The switching valve section 156 is arranged downstream of the main valve section 152. The main valve portion 152 opens and closes the flow path of the pipe 48, and the switching valve portion 156 opens and closes the inlet of the pipe 51 branched from the pipe 48. The downstream end of the pipe 48 communicates with a rim spout hole 53 that is formed toward the bottom of the rim portion of the toilet body 52, and the downstream end of the pipe 51 is trapped at the bottom of the bowl of the toilet body 52. It communicates with a jet water spouting nozzle 54 arranged to face the road. The opening / closing of the main valve portion 152 and the switching valve portion 156 is controlled by opening / closing the opening / closing valve 7 and the switching valve 4 which are pilot valves.

The supply time of toilet flush water can be controlled without using electricity. For toilets such as toilet bowls that do not operate at the time of a power outage that disrupts users' lives, a separate device that can operate during a power outage is required although it is an electric system, but it is a manual system. Therefore, it is possible to provide a flush toilet with a simple structure without the need for such a device.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a cleaning water supply device.

FIG. 2 is a configuration diagram of a second cam

FIG. 3 is a schematic diagram of a clutch

FIG. 4 is a block diagram of the first cam.

FIG. 5 is a configuration diagram of a third cam

FIG. 6 is a relationship diagram showing the relationship between the rotation angle of the operation unit and the valve position.

FIG. 7 is an exploded view of the speed setting means

FIG. 8 is a configuration diagram of a connecting means including an elastic tube.

FIG. 9 is a configuration diagram of a connecting means including a joint portion and an elastic portion.

FIG. 10 is a cross-sectional view showing a joining cross section of the connecting means.

FIG. 11 is a sectional view of the valve body of the pilot-operated wash water supply device.

FIG. 12 is a diagram showing the same operation principle as above.

FIG. 13 is a timing chart of the operation of the opening / closing valve and the switching valve and water flow.

FIG. 14 is a configuration diagram of a flush toilet having a flush water supply device.

FIG. 15 is a schematic diagram of a conventional manual cleaning water supply device.

[Explanation of symbols]

2.9 Water inlet, 3.6 valves, 4 switching valve, 5 ・
8 water outlet, 7 open / close valve, 22/23 valve seat, 10 third cam, 11 speed setting means, 12 third gear, 1
3 2nd cam, 14 clutch, 15 2nd gear,
17 first cam, 18 first gear, 24
Coil spring, 19 operation part, 20 wash water supply device, 21 cam rotating body, 25 fourth gear, 30
Flush toilet, 31, 32 piping, 33 toilet body, 34 rim spout hole, 35 jet spout nozzle, 71 case, 72, 73 permanent magnet,
74, 75 case cover, 76, 77 bearing,
78 rotor, 79 rotating shaft,
80 copper wire, 81 iron core, 82 commutator, 83 end part, 84, 85 brush, 86, 87 output terminal, 90, 93, 94 fixed resistance, 91 variable resistor, 92, 95 rotary switch, 96 changeover switch, 97 Mechanism case, 98 flange, 99 rubber tube,
100 axis, 101 fitting part 102
Elastic part, 103, 104 joint part,
105 opening part, 151 valve body, 152 main valve part,
153 water inlet, 154 main valve, 155 fastening portion, 156 switching valve portion, 157 second inflow passage,
158 1st inflow path, 159 1st switching valve, 160/171 pilot port, 161 1st outflow path, 162 2nd outflow path, 163 vacuum breaker, 16
4 communication ports, 165 2nd switching valve, 1
66/173 small hole, 172 constant flow valve

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Akira Watanabe             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. F term (reference) 2D039 BB00 DA04 EA01 FC00                 5H607 BB02 BB04 BB14 BB26 CC03                       DD07 EE31 EE43 GG01 GG09                       GG10 KK08

Claims (7)

[Claims] 1. A spring that stores a user's operation as energy, a cam that rotates by the energy stored in the spring, and a valve that is driven by the cam to open and close a supply channel of washing water. The cam unit includes a mechanism unit including a speed increasing gear train connected to the cam, and a rotor connected to the speed increasing gear train to rotate in a magnetic field. The cam is generated by using an electromotive force generated in the rotor. And a speed setting means for setting the rotation speed of the cleaning water supply apparatus, wherein the speed setting means and the mechanism section are separate bodies. 2. The speed setting means is attached to the mechanism portion, and the rotor shaft and the final stage gear shaft of the speed increasing gear train are substantially on the same line by a connecting means having an elastic portion. The cleaning water supply device according to claim 1, wherein the cleaning water supply device is connected to. 3. The cleaning water supply device according to claim 2, wherein the connecting means is a pipe made of an elastic body. 4. The connecting means comprises a joint portion fitted to the rotor shaft and the gear shaft of the final stage, and an elastic portion for connecting the joint portions to absorb misalignment. 2. The washing water supply device according to 2. 5. The cross section of the rotor shaft and the gear shaft of the final stage and the cross section of the joint portion of the connecting means have a shape that restrains the rotation direction. The washing water supply device described. 6. The cleaning water supply device comprises a pilot valve provided in a cleaning water supply flow path, and a pilot flow path communicating with a back pressure chamber of the pilot valve, the pilot flow path being the valve. The cleaning water supply device according to any one of claims 1 to 5, wherein the cleaning water supply device is opened and closed by means of: 7. A flush toilet bowl, comprising the flush water supply device according to claim 6, wherein tap water supplied from a water pipe is supplied to a toilet bowl for a predetermined time based on a user's operation.