JPH0577481U - Speed governor such as toilet bowl - Google Patents

Abstract

(57) [Abstract] [Purpose] A desired braking effect can be obtained even with a small mechanical damper. [Configuration] In a speed governor such as a toilet bowl that controls the rotational speed of the rotating body 12, it is integrated with the rotating body 12. Rotating input shaft 9
An input gear 6 that rotates integrally with the input shaft 9, and an input gear 6
Of the worm shaft 26 that meshes with the final stage 32 of the speed increasing train 28, the first braking means 27 that brakes the rotation of the worm shaft 26, and the rotation of the input shaft. And a second braking means 17 for braking.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speed control device such as a toilet bowl that controls the rotation of a rotating body such as a toilet lid or a toilet seat in the toilet bowl.

[0002]

[Prior Art]

 Means for controlling the rotation of the toilet seat or the toilet lid of the toilet bowl, as described in Japanese Utility Model Publication No. Sho 64-3901 and Japanese Utility Model Publication No. 1-86891, is twisted along the axis of rotation of the rotating body. A coil spring is provided and a rotating body that rotates in a closing direction generates a torque in a direction opposite to the closing direction to brake the rotation of the rotating body, or is described in Japanese Patent Application No. 3-62982. As described above, it has been proposed to use a mechanical damper including a friction plate and a braking peripheral wall to brake the rotation of the rotating body.

[0003]

[Problems to be solved by the device]

 The method using the above-mentioned torsion coil spring has a feature that the structure is relatively simple, but has a problem that the followability to the weight change of the toilet seat and the toilet lid is low. For example, when the toilet seat cover is attached to the toilet seat, the rotating torque of the toilet seat fluctuates, and the desired damping effect cannot be obtained. Further, the method using the mechanical damper has an advantage that a constant braking effect can be obtained even if the temperature changes or the mass of the rotating body changes, but in order to cope with a large torque of the rotating body, The problem remains that it has to be made larger.

Therefore, an object of the present invention is to provide a speed governor such as a toilet bowl that can obtain a desired braking effect even with a small mechanical damper.

[0005]

[Means for Solving the Problems]

 A speed governor such as a toilet bowl of the present invention comprises an input shaft that rotates integrally with a rotating body, an input gear that rotates integrally with the input shaft, a speed increasing train wheel that increases the rotation of the input gear, and a speed increasing mechanism. It is characterized in that it is provided with a worm shaft meshing with the final stage of the train wheel, a first braking means for braking the rotation of the worm shaft, and a second braking means for braking the rotation of the input shaft.

[0006]

[Action]

 When the rotating body rotates, the input shaft rotates. The rotation of the input shaft is braked by the second braking means, and the rotation of the rotating body is braked. Further, the rotation of the input shaft causes the input gear to rotate integrally, and the rotation of this gear is accelerated by the speed increasing gear train to rotate the worm shaft. The rotation of the worm shaft is braked by the first braking means, and the rotation of the input shaft, that is, the rotating body integrated with the input shaft is braked.

[0007]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

1 to 5, the speed governor 1 includes a train wheel and braking means housed in a first case 2 and a second case 3. The first case 2 and the second case 3 are fixed to each other by the fixing screw 4 after being overlapped with each other. The fixing screw 4 penetrates the second case 3 and is screwed into the screw hole 2a of the first case 2 (see FIGS. 8, 10, and 11).

The second case 3 has a window hole 3a through which the input shaft is inserted. A shaft bearing 2b is formed in the first case 2 so as to face the window hole 3a and rotatably supports the shaft 5a of the first input gear 5. The first input gear 5 is formed in a cylindrical shape with a bottom, and a tooth portion 5b is formed on the outer periphery of the first input gear 5 over about half the circumference.

One end of a tubular portion 6 a of the second input gear 6 is fitted into the tubular portion 5 c of the first input gear 5 via a seal ring 7 so as to be relatively rotatable. The other end of the second input gear 6 is rotatably supported by a bearing portion 3b formed on the second case 3 via a seal ring 8. A tooth portion 6b is formed on the outer circumference of the second input gear 6 over about half a circumference.

As shown in FIGS. 4 and 6, one end 9 a of the first input shaft 9 is inserted through the first input gear 5. One end 9a of the first input shaft 9 is cut off at a symmetrical position on the outer peripheral surface, and is fitted into a cylindrical hole 5d of the first input gear 5 having a complementary sectional shape. Therefore, the first input shaft 9 and the first input gear 5 rotate integrally with each other.

As shown in FIGS. 4 and 7, a cylindrical second input shaft 11 is fitted in the first input shaft 9. The second input shaft 11 is killed at a symmetrical position on the outer peripheral surface of the one end 11a thereof, and is fitted into the cylindrical hole 6c of the second input gear 6 having a complementary sectional shape. That is, the second input shaft 11 and the second input gear 6 rotate integrally. At the other end of the second input shaft 11 protruding from the second case 3, a killing portion 11b is formed as a rotation transmitting portion. The hinge portion 12a of the toilet lid 12 as the second rotating body is fitted into the killing portion 12a. Therefore, the toilet lid 12 and the second input shaft 6 rotate integrally. In FIG. 1, reference numeral C2 indicates a position where the toilet lid 12 covers an opening of the toilet body (not shown), that is, a closed position, and reference numeral O2 indicates a position where the toilet lid 12 is opened (standing position). Shows.

As shown in FIG. 4, the other end 9b of the first input shaft 9 is projected from the second input shaft 11, and the hinge portion 13a of the toilet seat 13 as the first rotating body is fitted therein. There is. The outer peripheral surface of the other end 9b of the first input shaft is cut off as a rotation transmitting portion, and the toilet seat 13 and the shaft 9 are integrated with each other by being fitted into the hinge portion 13a having a complementary sectional shape. Rotate. In FIG. 5, the symbol C1 indicates the position where the toilet seat 13 is in contact with the toilet body, that is, the closed position, and the symbol O1 indicates the position where the toilet seat 13 is open (the standing position).

As shown in FIG. 2, the first torsion coil spring 14 is wound from the outer circumference of the first input gear 5 to the outer circumference of the second input gear 6. The spring 14 constitutes the second braking means of the toilet seat 13, and has one end 14a locked to the locking portion 5e (see FIG. 5) of the first input gear 5 that rotates integrally with the first input shaft 9. The other end 14b is locked to the spring locking portion 3c (see FIG. 4) of the second case 3 as an immovable member. The first torsion coil spring 14 acts to generate torque when the toilet seat 13 rotates from the open position O1 toward the closed position C1.

In FIG. 2, a shaft portion 2c and a shaft portion 3d are formed at opposing positions of the first case 2 and the second case 3, and the second transmission gear 15 has both ends 15a and 15b of its cylindrical portion. It is rotatably supported by. As shown in FIG. 1, the tooth portion 15c of the second transmission gear 15 always meshes with the tooth portion 6b of the second input gear 6. The cylindrical portion 15d of the second transmission gear 15 is rotatably supported by the first transmission gear 16 with the cylindrical portion 15d as the center of rotation. The tooth portion 16a of the second transmission gear 16 always meshes with the tooth portion 5b of the first input gear 5 as shown in FIG.

In FIGS. 1 and 2, a second torsion coil spring 17 which constitutes a second braking means of the toilet lid 12 is housed in the tubular portion 15 d of the second transmission gear 15. Second Torsion One end 17a of the coil spring 17 is locked to the locking portion 15e formed at one end of the second transmission gear 15, and the other end 17b is locked to the second case 3 as a stationary member. It is locked to the portion 3e. When the toilet lid 12 rotates from the open position O2 toward the closed position C2, the second torsion coil spring 17 generates torque in a direction in which the second input shaft 11 that rotates integrally with the toilet lid 12 is braked.

1 to 3 and 5, the tooth portion 18a of the second drive gear 18 meshes with the first transmission gear 16, and the tooth portion 19a of the second drive gear 19 meshes with the second transmission gear 15. Matching. Both drive gears 18, 19 are rotatably supported by a support shaft 21 supported by the first case 2 and the second case 3. A large-diameter driven gear 22 is rotatably supported on the support shaft 21 so as to be sandwiched between both drive gears. The tooth portions 18a and 19a of the drive gears 18 and 19 are formed only on substantially half circumferences.

A metal cup 18c is integrally fitted to the tubular portion 18b of the first drive gear 18 made of synthetic resin, and one end of a coil spring 18d is locked. The coil spring 18d is tightly wound around the outer peripheral surface of the sleeve 22a of the driven gear 22. The spring 18d is loosened from the sleeve 22a when the toilet seat 13 is opened in a direction in which the spring 18d is wound around the sleeve 22a by the rotation of the first drive gear 18 when the toilet seat 13 is rotated in the closing direction and rotates the driven gear 22. It is wound in the direction. That is, the first drive gear 18, the coil spring 18d, and the driven gear 22 constitute the first one-way clutch 23.

A metal cup 19c is integrally fitted to the tubular portion 19b of the second drive gear 19 made of synthetic resin, and one end of the coil spring 19d is locked. The coil spring 19d is relatively tightly wound around the outer peripheral surface of the sleeve 22b of the driven gear 22. This spring 19d is wound around the sleeve 22b by the rotation of the second drive gear 19 when the toilet lid 12 is rotated in the closing direction, and rotates the driven gear 22. It is wound in a direction that loosens from. That is, the second drive gear 19, the coil spring 19d, and the driven gear 22 constitute the second one-way clutch 24.

In FIG. 5, a protrusion 18 f is formed on the non-toothed portion 18 e of the first drive gear 18. On the other hand, the first case 2 is provided with a holding mechanism 25 that holds the toilet seat 13 in the open position (upright position). The mechanism 25 is composed of a slider 25b which is urged toward the moving region of the protrusion 18f by an extensible spring 25a and a case 25c which accommodates the slider 25b. The case 25c is screwed after being fitted to the holding portion 2d formed on the first case 2.

1 and 3, reference numeral 26 indicates a worm shaft. The worm shaft 26 has one end 26a rotatably supported by a bearing 26b engaged with the engaging portion 2e of the first case 2, and the other end 26c rotatably supported by a bearing hole 27a. The bearing hole 27a is formed in the bottom portion of the braking cup 27b engaged with the engaging portion 2f (see FIG. 8) of the first case 2. A braking rotating body 27c, which is made of an elastic body such as rubber and has a portion elastically deformed by centrifugal force, is press-fitted to the other end of the worm shaft 26. When the worm shaft 26 rotates and the rotating body 27c elastically deforms in the centrifugal direction, the rotation of the worm shaft is braked by rubbing the inner peripheral wall of the braking cup 27b. The worm shaft 26, the braking cup 27b and the braking rotator 27c constitute the first braking means 27 which is a well-known contact type mechanical damper.

The first braking means 27 is not limited to the contact type, but may be a well-known eddy current type non-contact damper composed of a combination of a magnet and a copper plate or the like.

As shown in FIG. 1 and FIG. 3, a speed increasing gear train 28 is arranged between the worm shaft 26 and the transmission gears 15 and 16. The train wheel 28 includes a first drive gear 18 that meshes with the first transmission gear 16, a driven gear 22, a small-diameter tooth portion 29a that meshes with a tooth portion 22c of the gear 22, and a large-diameter tooth portion 29b. The two-stage gear 29, a small-diameter gear 31 that meshes with the large-diameter tooth portion 29b, and a worm wheel 32 that meshes with the gear 31 and rotates substantially integrally with the gear 31 to constantly mesh with the worm shaft 26.

As shown in FIG. 3, the two-stage gear 29 is rotatably supported by a support shaft 33 supported by both cases 2 and 3. One end of the support shaft 33 is fitted in the bearing portion 2h of the first case 2.

As shown in FIG. 3, the small-diameter gear 31 includes a tooth portion 31a, a flange 31b, a cylindrical boss portion 31c, and a spring locking portion 31d formed on the flange. It is rotatably supported by the supported support shaft 35.

The worm wheel 32 is rotatably inserted into and supported by the boss portion 31 c of the small diameter gear 31. The tooth portion 32a of the worm wheel 32 meshes with the tooth portion 26d of the worm shaft 26 formed with a large lead angle to rotationally drive the shaft.

A coil spring 34 acting as a torque limiter is wound around the outer periphery of the boss portion 32b of the worm wheel 32 relatively tightly. One end 34a of this spring is locked to the spring locking portion 31d of the small-diameter gear 31, and when the toilet seat 13 and the toilet lid 12 rotate, when an excessive torque is generated in the train wheel, the one end 34a is engaged with the boss portion 32b. It acts so as to cut off the rotation transmission with the worm wheel 32 by sliding.

The operation of the embodiment configured as described above will be described. First, the opening and closing of the toilet lid 12 will be described. In FIG. 1, when the toilet lid is placed in the closed position C2, the second input gear 6 is in the position shown in the drawing, and the starting end 6ba of the tooth portion 6b is meshed with the second transmission gear 15. .. Further, the second drive gear 19 has the toothed start end 19aa thereof meshed with the second transmission gear 15.

When the toilet lid 12 placed at the closed position C2 is rotated toward the open position O2, the second input gear 6 is rotated clockwise via the second input shaft 9. The rotation of the second input gear 6 1 is transmitted to the second drive gear 19 via the second transmission gear 15 to rotate the gear 19 1 clockwise. When the second transmission gear 15 rotates, the second torsion coil spring 17 rotates in the unwinding direction.

When the second drive gear 19 rotates clockwise, the coil spring 19d of the second one-way clutch 24 is wound and loosened, and slips between the spring and the sleeve 22b. Therefore, the rotation of the second drive gear 19 is not transmitted to the driven gear 22, and the rotation transmission of the toilet lid 12 is interrupted by the second one-way clutch 24. Therefore, when the toilet lid 12 is opened, the braking force by the first braking means 27 and the second braking means (second torsion coil spring) 17 does not act.

Now, when the toilet lid 12 placed in the open position O2 is rotated toward the closed position C2, that is, the toilet lid 12 in the standing position is rotated to a position where it is rotated by its own weight. Then, the second input shaft 9 rotates integrally with the second input shaft 9 to rotate the second input gear 6 counterclockwise. The rotating second input gear 6 rotates the second transmission gear 15 clockwise and further rotates the second drive gear 19 counterclockwise. When the second transmission gear 15 rotates, the second torsion coil spring 17 whose one end 17a is locked is wound around the second transmission gear 15 to generate a torque in the direction opposite to the rotation direction. Therefore, a torque from the second torsion coil spring 17 acts on the toilet lid 12, and the first stage braking force is applied to the downward rotation of the toilet lid 12.

When the second drive gear 19 rotates, the second coil spring 19d is tightened and wound around the sleeve 22b of the driven gear 22, that is, the one-way clutch is brought into contact to rotate the gear 22 in the same direction. The rotation of the driven gear 22 is accelerated and transmitted to the small diameter gear 31 via the two-step gear 29. The rotation of the small diameter gear 31 is transmitted to the worm wheel 32 via the torque limiter (34). The worm wheel 32 rotates the worm shaft 26 at a high speed.

The worm shaft 26 that rotates at a high speed rotates the braking rotor 27c that is fixed to the worm shaft 26. The worm shaft 26, which is rotated at a high speed by transmitting the rotation of the toilet lid 12 at an increased speed, spreads the braking rotating body 27c in the centrifugal direction and rubs the inner peripheral surface of the braking cup 27b. The rotation of the shaft 26 is braked. The braking force applied to the worm shaft 26 acts as a second-stage braking force on the toilet lid 12 that is rotationally driven, so that the rotation of the lid 12 in the closing direction is slowly adjusted. Become.

Next, the operation of rotating the toilet seat 13 will be described. At this time, the toilet lid 12 is assumed to be placed at the open position (upright position) indicated by reference numeral O2 in FIG. In FIG. 5, when the toilet seat is placed in the closed position C1, the first input gear 5 is at the position shown in the drawing, and the starting end 5bb of the tooth portion 5b is meshed with the first transmission gear 16. Further, the first drive gear 18 meshes the starting ends 18ab of its teeth with the first transmission gear 16.

When the toilet seat 13 placed at the closed position C1 is rotated toward the open position O1, the first input gear 5 is rotated clockwise via the first input shaft 11. The rotation of the first input gear 5 is transmitted to the first drive gear 18 via the first transmission gear 16 to rotate the gear 18 clockwise. When the first input gear 5 rotates, the first torsion coil spring 14 rotates in the unwinding direction. The energy stored in the spring 14 will be described later.

When the first drive gear 18 rotates clockwise, the coil spring 18d of the first one-way clutch 23 is wound and loosened, and slips between the spring and the sleeve 22a. Therefore, the rotation of the first drive gear 18 is not transmitted to the driven gear 22, and the rotation of the toilet seat 13 is interrupted by the first one-way clutch 23. Therefore, when the toilet seat 13 is opened, the braking force by the first braking means 27 and the second braking means (first torsion coil spring) 14 does not act.

When the toilet seat 13 is rotated in the opening direction, the first drive gear 18 rotates clockwise, and the projection 18f formed on the first drive gear 18 also rotates. When the toilet seat 13 is rotated and raised to a position of about 90 degrees, the protrusion 18f is located in front of the slider 25b. When the toilet seat 13 is rotated by more than 90 degrees, the protrusion 18f slides and retracts the slider 25b against the elasticity of the spring 25a. When the toilet seat rotates to the upright position (O1) of approximately 120 degrees, the slider 25b returns and prevents the projection 18f from rotating counterclockwise. Therefore, the toilet seat 13, which is rotatably connected to the first drive gear 18 by the gear train, is held upright in the open position O1. The resistance force when the projection 18f gets over the slider 25b is recognized as a moderation feeling when the toilet seat is placed at the open position.

Now, when the toilet seat 13 placed in the open position O2 is rotated toward the closed position C1, that is, until the position of the toilet seat 13 in the standing position is lifted and the toilet seat 13 rotates by its own weight. When it is rotated, the first input shaft 11 is integrally rotated to rotate the first input gear 5 counterclockwise. When the first input gear 5 rotates, the first torsion coil spring 14 whose one end 14a is locked is wound around the first input gear 5, and the first stage braking force acts on the downward rotation of the toilet seat 13.

The rotating first input gear 5 rotates the first transmission gear 16 clockwise and further rotates the first drive gear 18 counterclockwise. When the first drive gear 18 rotates, the first coil spring 18d is wound around and wound around the sleeve 22a of the driven gear 22, that is, the one-way clutch is brought into contact to rotate the gear 22 in the same direction. As shown in FIG. 1, the rotation of the driven gear 22 is increased in speed and transmitted to the small diameter gear 31 via the two-stage gear 29. The rotation of the small diameter gear 31 is transmitted to the worm wheel 32 via the torque limiter (34). The worm wheel 32 rotates the worm shaft 26 at high speed.

The worm shaft 26 that rotates at high speed rotates the braking rotor 27c that is fixed to the worm shaft 26. The worm shaft 26, which rotates at a high speed by transmitting the rotation of the toilet seat 13 at an increased speed, spreads the braking rotating body 27c in the centrifugal direction and rubs the inner peripheral surface of the braking cup 27b. Brakes the rotation of the shaft 26. The braking force applied to the worm shaft 26 acts as a second-stage braking force on the toilet seat 13 that is rotationally driven, and adjusts the rotation of the toilet seat in the closing direction slowly.

The torque for lowering the toilet seat 13 is related to the weight of the toilet seat. For example, when a cover is attached to the toilet seat, the rotational torque thereof increases and the burden on the first braking means 27 increases. However, in addition to the braking action by the first braking means 27 when the toilet seat 13 is closed, the braking action by the second braking means (torsion coil spring) 14 also operates, so the load on the first braking means 27, which is a mechanical damper, is reduced. To be done. Therefore, the braking means 27 need only be small in size.

Next, the toilet lid or the toilet seat is normally lowered and rotated by its own weight, but there are cases where these are forced to be lowered. For example, when the braking force by the first braking means 27 and the second braking means 14 is operating and the slowly descending toilet seat 13 is pressed by hand and lowered, the toilet seat body, the gear train, and the first braking means 27. Etc. will be overloaded. When the toilet seat is forcibly rotated and the braking means 27 is operated to the maximum extent and the load applied to the speed increasing gear train 28 becomes excessive, the torque limiter 34 shown in FIG. 3 operates. When the small-diameter gear 31 is rotated at an excessive speed, the rotating body 27c presses against the inner surface of the peripheral wall 27b so as to suppress the rotation, and the rotation of the worm shaft 26 is stopped or is lowered to the stop. Then, the coil spring 34 whose one end 34a is locked to the small-diameter gear 31 slips on the peripheral surface of the sleeve 32b of the worm wheel 32 to cut off the rotation transmission of the speed increasing gear train. Therefore, when the toilet seat is forcibly lowered, the torque limiter operates and allows this, so that damage to the toilet seat, its hinge, gear train, braking means, etc. can be avoided.

When a torsion coil spring is used as the second braking means, it can be housed inside one gear in the gear train or around the shaft portion. Therefore, in addition to the first braking means 27, the structure is provided even if the second braking means is provided. No new space needed.

8 to 10, reference numeral 2k indicates one of attachment pieces for attaching the speed governor 1 to the toilet body (not shown), and reference numeral 2m indicates one end of the support shaft 21. 2n indicates a hole into which one end of the support shaft 35 is fitted.

[0045]

[Effect of the device]

 As described above, according to the present invention, since the first braking means for braking the worm shaft is adopted, the stable braking force can be obtained without changing the braking characteristic due to the temperature change. In addition to the first braking means, the second braking means for braking the input shaft is also used to reduce the load applied to the first braking means. Therefore, the first braking means is compact and saves space. The thing of what is enough.

Further, since the rotations of the plurality of rotating bodies are taken in by the double-structured input shaft, a single speed governing device can be used for speed control of both the toilet seat and the toilet lid at one end of the hinge.

[Submission date] March 9, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction content]

[0018] The cylindrical portion 18b of the first driving gear 18 made of synthetic resin, metal cup 18 c is that have been fitted together. The coil spring 18d have been engaged at one end to the sleeves 22a of the driven gear 22, and is relatively tightly wound. The spring 18d rotates from the sleeve 22a when the toilet seat 13 is opened when the toilet seat 13 is opened because the spring 18d is wound around the sleeve 22a by the rotation of the first drive gear 18 when the toilet seat 13 is rotated so as to rotate the driven gear 22. It is wound in a loosening direction. That is, the first drive gear 18, the coil spring 18d , the metallic cup 18c, and the driven gear 22 constitute the first one-way clutch 23.

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0019

[Correction method] Change

[Correction content]

[0019] The cylindrical portion 19b of the second driving gear 19 made of synthetic resin, metal cup 19 c is that have been fitted together. The coil spring 19d have engaged the end of the sleeves 22b of the driven gear 22, and is relatively tightly wound. When the toilet lid 12 is opened, the spring 19d is wound around the sleeve 22b by the rotation of the second drive gear 19 when the toilet lid 12 is rotated in the closing direction to rotate the driven gear 22. It is wound in a direction loosening from 22b. That is, the second drive gear 19, the coil spring 19d , the metallic cup 19c, and the driven gear 22 constitute the second one-way clutch 24.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] 0030

[Correction method] Change

[Correction content]

When the second drive gear 19 rotates clockwise, the coil spring 19d of the second one-way clutch 24 is wound and loosened, and slips between the spring and the metal cup 19c . Therefore, the rotation of the second drive gear 19 is not transmitted to the driven gear 22, and the rotation transmission of the toilet lid 12 is interrupted by the second one-way clutch 24. Therefore, when the toilet lid 12 is opened, the braking force by the first braking means 27 and the second braking means (second torsion coil spring) 17 does not act.

[Brief description of drawings]

FIG. 1 is a front sectional view of a speed governor such as a toilet bowl showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the above.

FIG. 3 is a sectional bottom view of the above.

FIG. 4 is a front cross-sectional view showing a relative relationship among a rotating body, an input shaft, and an input gear.

FIG. 5 is a front cross-sectional view showing a first input gear and a train wheel continuous with the first input gear.

FIG. 6 is an exploded sectional view showing a first input shaft and a first input gear.

FIG. 7 is an exploded sectional view showing a second input shaft and a second input gear.

FIG. 8 is a front view showing the first case.

9 is a cross-sectional view taken along the line AA in FIG.

10 is a sectional view taken along line BB in FIG.

11 is a cross-sectional view taken along the line DD in FIG.

12A is a plan view seen from the direction of arrow E in FIG. 9, and FIG. 12B is a front view seen from the direction of arrow E in FIG.

[Explanation of symbols]

 1 ... Speed control device 2 ... 1st case 3 ... 2nd case 5 ... 1st input gear 6 ... 2nd input gear 9 ... 1st input shaft 11 ... 2 input shaft 12 ... toilet lid 13 ... toilet seat 14 ... first torsion coil spring as second braking means 15 ... second transmission gear 16 ... first transmission gear 17 ... 2nd torsion coil spring as 2 braking means 18 ... 1st drive gear 19 ... 2nd drive gear 22 ... Driven gear 26 ... Worm shaft 27 ... Mechanical damper also as 1st braking means 28 ... Gear train

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[Procedure amendment]

[Submission date] March 9, 1993

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

Claims (3)

[Scope of utility model registration request] 1. A speed governing device, such as a toilet bowl, for controlling the rotational speed of a rotating body, wherein an input shaft that rotates integrally with the rotating body, an input gear that rotates integrally with the input shaft, and a rotation of the input gear are provided. A speed increasing wheel train, a worm shaft that meshes with a final stage of the speed increasing wheel train, a first braking unit that brakes the rotation of the worm shaft, and a second braking that brakes the rotation of the input shaft. A speed control device such as a toilet bowl, which is provided with: 2. A plurality of input shafts, which are coaxially provided and each have a rotation transmitting portion for transmitting to the rotating body, and rotations of the respective input shafts, which are provided between each input shaft and the speed increasing train wheel. 2. A speed control device for a toilet bowl or the like according to claim 1, further comprising a transmission gear for transmitting to the speed increasing train wheel, and second braking means for each of the input shaft and the transmission gear. 3. The first braking means is a torsion coil spring that generates torque by rotating the rotating body in one direction, the one end of which is locked to the input shaft and the other end of which is locked to the immovable member. 3. A speed control device for a toilet bowl or the like according to claim 2, comprising a coil spring and a second torsion coil spring having one end thereof fixed to the transmission gear and the other end fixed to a stationary member.