JP2514743B2 - Speed governor such as toilet bowl - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a speed governing device such as a toilet bowl for controlling the speed of two members such as a seat and a lid of a toilet bowl that are opened and closed in the same direction.

(Prior Art) A technique has been already proposed in which a seat and a lid provided on a toilet bowl are opened and closed slowly by using independent speed governors. One of them is that the seat and the lid are slidably provided on the toilet body and have different diameters on the seat and the lid, respectively, and the seat and the lid are opened and closed with a virtual fulcrum of each arm as a rotation center. Proposed. The arcuate arm of the seat is rotatably coupled to the braking means for the seat, and the arcuate arm of the lid is rotatably coupled to the braking means for the lid, and the seat and the lid are subjected to a braking action by independent braking means. The speed in the closing direction has been adjusted.

(Problems to be Solved by the Invention) The arc-shaped arm is used as a hinge of a seat or a lid,
When using this arm as the input means of the braking means,
The gear ratio to the braking means varies depending on the diameter of the arcuate arm. Therefore, the braking means (damper unit) having different braking force must be separately provided for the seat and the lid, which causes a problem of increasing the cost of the device. The difference in the braking force occurs even in the case of the hinge mechanism that does not use the arcuate arm and also due to the difference in the mass of the lid and the seat.

Also, when closing the seat and lid of the toilet bowl at the same time, it is desirable that both are closed at approximately the same speed.Therefore, it is necessary to make adjustments so that braking force is generated according to the weight of the seat and lid. There is a problem that it is extremely difficult to adjust to.

Therefore, an object of the present invention is to provide a speed governing device such as a toilet bowl that can adjust the speed of a seat and a lid without using a dedicated braking means and can close the seat and the lid at the same speed.

(Means for Solving the Problem) A speed governor such as a toilet bowl according to the present invention includes a first input unit that interlocks with the rotation of a lid, a second input unit that interlocks with the rotation of a seat, and the first input. A first braking means for braking the rotation of the lid in the closing direction by a rotation braking portion rotated by means, and a rotation braking portion rotated by the second input means for rotating the seat in the closing direction. A second braking means, a first one-way clutch provided between the rotational braking component of the first braking means and the first input means, a rotational braking portion of the second braking means, and the second input. A second one-way clutch provided between the first braking means and the second braking means, and a rotational coupling means for rotationally coupling the rotational braking portions of the first braking means and the second braking means with each other.

(Operation) When the lid and the sheet that are respectively opened are closed at the same time, if the braking force on the lid is insufficient, the lid is closed at a speed that follows the closing speed of the sheet, so that they overlap and rotate.

On the other hand, when the braking force on the seat is insufficient, the seat tries to close earlier than the lid. The seat rotates the rotation braking part of the second braking means via the second input means, and the lid rotates the rotation braking part of the first braking means via the first input means. Further, since both rotary braking portions are rotationally coupled via the rotational coupling means, the rotational braking portion of the first braking means that is rotating slower is the rotational braking portion of the second braking means that is rotating faster. The rotation is transmitted by the rotation coupling means, and is quickly rotated by the action of the first one-way clutch to release the braking force applied to the lid. The lid that is no longer subjected to the braking force has a higher rotational speed, overlaps with the sheet, and rotates together in the closing direction.

(Examples) Hereinafter, the present invention will be described in detail based on the illustrated examples.

First, the outline of the toilet 1 will be described with reference to FIG. The toilet bowl 1 has a toilet bowl body 2, a lid 4 and a seat 3 which are provided on the top of the toilet bowl so as to be opened and closed. The seat 3 and the lid 4 are rotatably supported by a hinge mechanism provided inside the flusher operation unit case 5 installed in the rear portion of the toilet body 2.

2 to 5, a hinge 10 with a speed adjusting mechanism is shown.
The structure of will be described. The hinge 10 is a case 11 attached to the toilet body 2, and a cover fixed to the case by superposition.
12 and the first that is rotatably guided by this case and cover
It is composed of an arcuate arm 13 and a second arcuate arm 16. The case 11 is fixed to the toilet body by fixing screws (not shown) inserted through the mounting portions 11g and 11h. The case 11 has a first arcuate guide groove 11a having the same shape as the first arcuate arm 13 and having an arcuate shape centered on the point O1.
The first arcuate arm 13 has its base end portion 13a engaged with an engagement portion 4a formed near the rotation fulcrum on the base end side of the lid 4, and then fixed by a fixing screw 17. The circular arc portion 13b of the first circular arc arm 13 is slidably inserted in the first circular arc guide groove 11a. The case 11 is formed with a second arc-shaped guide groove 11d that constitutes a hinge of the seat 3, and a second arc-shaped arm 16 of substantially the same shape is slidably inserted therein. The arc center of the guide groove 11d and the arm 16 is the point O2. A base end portion 16a of the second arcuate arm 16 is engaged with an engagement portion 3a formed near the rotation fulcrum of the seat 3 and then fixed by a fixing screw 19. The arcuate portion 16b of the second arcuate arm 16 is
It is slidably inserted in the arc-shaped guide groove 11d. Case in which the first arcuate arm 13 and the second arcuate arm 16 are inserted
After the cover 12 is superposed on the cover 11, the cover 12 is integrated with the fixing screws 20 and 20. In FIG. 4, when the lid 4 is rotated between the closed position shown by the solid line and the open position shown by the chain line, the first arcuate arm 13 is rotated around the virtual fulcrum O1. Similarly, the seat 3 is rotated about the virtual fulcrum O2. In FIG. 2, reference numerals 5b and 5c
Shows a hole for arm entry and exit formed in the operation unit case 5.

In FIG. 2, in the vicinity of the first arc-shaped guide groove 11a,
A pinion storage portion 11b that stores the first pinion 14, and a first
Each of the storage portions 11c that stores the braking means 15 is formed. An arcuate rack 13c that meshes with the first pinion 14 is formed on the inner edge of the arcuate portion of the first arcuate arm 13. The first pinion 14 meshes with the first input gear 15a. The first arcuate arm 13, the first pinion 14, and the first input gear 15 constitute a first input means and rotate in conjunction with the rotation of the lid 4. In addition, in the vicinity of the second arc-shaped guide groove 11d, a pinion housing portion 11e housing the second pinion 18 is provided.
And a storage portion 11f that stores the second braking means 21 is formed. An arcuate crack 16c that meshes with the second pinion 18 is formed on the inner edge of the arcuate portion of the second arcuate arm 16. The second pinion 18 meshes with the second input gear 21a. Second arcuate arm 16, second pinion 18
The second input gear 21a constitutes a second input means and rotates in conjunction with the rotation of the seat 3.

An example of the structure of the first braking means 15 will be described with reference to FIGS. 3 and 5. The shaft portion 15aa of the first input gear 15a is rotatably inserted through the center hole of the braking case 15b. The braking case 15b is formed in a double tubular shape, and the tubular portion 15ca of the first rotation braking portion 15c is fitted between these tubular portions so as to form a circumferential gap. Then, the circumferential space formed by the cylindrical portion is filled with a highly viscous material 15d such as grease. The braking case 15b is fixed to the case 11. The shaft portion 15ca of the first rotation braking portion 15c is arranged on the same axis as the shaft portion 15aa of the first input gear 15a, and the first one-way clutch 15e, which is a spring clutch, is relatively rigid on both shaft portions. It is wrapped around. The direction in which the spring is wound is such that only the rotation of the first input gear 15a when the lid 4 is closed is transmitted to the first rotation braking portion 15c.

The first braking means 15 is composed of the above-described braking case 15b, first rotation braking portion 15c, and highly viscous body 15d. When the first rotation braking portion 15c rotates, the braking force by the shear resistance of the highly viscous body 15d. Occurs.

The structure of the second braking means 21 will be described with reference to FIGS. 4 and 5. The second input gear 21a meshing with the second pinion 18 has its shaft portion 21aa rotatably inserted into the center hole of the braking case 21b. The braking case 21b is formed in a double cylindrical shape, and the cylindrical portion 21ca of the second rotation braking portion 21c is fitted between these cylindrical portions so as to form a clearance. Then, a highly viscous body 21d such as grease is filled in the circumferential space formed by both the cylindrical portions. Braking case 21b
Is fixed to the case 11. The shaft portion 21ca of the second rotation braking portion 21c is arranged on the same axis as the shaft portion 21aa of the second input gear 21a, and the second one-way clutch 21e, which is a spring clutch, is relatively rigid on both shaft portions. It is wrapped around. The direction in which the spring is wound is such that only the rotation of the second input gear 21a when the seat 3 is trapped is transmitted to the second rotation braking portion 21c.

The second braking means 21 for braking the rotation of the seat 3 includes the above-described braking case 21b, the first rotation braking portion 21c, and the highly viscous body 21d.
And the second rotation braking portion 21c rotates,
The braking force is generated by the shear resistance of the high-viscosity body 21d.

As shown in FIG. 3, the other shaft portions 15ac and 21ac of the first rotation braking portion 15c and the second rotation braking portion 21c are the case 11
It is supported by a bearing cover 22 which is fixedly overlapped with. An idle gear 23 is rotatably supported by the bearing cover 22 and the cover 11, and the gear 23 is the first rotation braking unit.
The tooth portion 15f formed on 15 and the tooth portion 21f formed on the second rotation braking portion 21c mesh with each other. Idle gear 23, each tooth
Reference numerals 15f and 21f constitute rotary coupling means for rotationally coupling the first braking means 15 and the second braking means 21, and mutually transmit the rotations of the rotary braking portions 15c and 21c of both braking means. .

 The operation of the embodiment configured as described above will be described.

In FIG. 2, the lid 4 opened as shown by the chain line.
Is rotated in the closing direction, the first arcuate arm 13 is rotated clockwise about the virtual fulcrum O1. As shown in FIG. 3, the rotation of the arm 13 causes the first input gear 15a to rotate via the first pinion 14 meshing with the arm 13, and the first one-way clutch 15e to be tightened to perform the first rotational braking. The part 15c is rotated. When the first rotation braking portion 15c rotates, a braking force is generated by the high-viscosity body 15d filled between the cylinder portion of the first rotation braking portion 15c and the cylinder portion of the braking case 15b, and the lid 4 that rotates in the closing direction is braked. Hang

Further, as shown in FIG. 5, the rotation of the first rotation braking unit 15c is transmitted to the second rotation braking unit 21c via the idle gear 23, and the braking force by the high-viscosity body 21d of the first braking means 21 is transmitted. Withdraw. The rotation of the second rotation braking portion 21c is not transmitted to the second input gear 21a (see FIG. 4) by the action of the second one-way clutch 21e. Thus, when the lid 4 is closed, the two braking forces by the first braking means 15 and the second braking means 21 act.

On the other hand, when the seat 3 is closed, as shown in FIG. 4, the second rotation braking portion 21c is moved through the second arcuate arm 16, the second pinion 18, the second input gear 21a, and the second one-way clutch 21e. When the seat rotates, a braking force is generated by the high-viscosity body 21d to brake the rotation of the seat. Also in this case, the rotation of the second rotation braking portion 21c is transmitted to the first rotation braking portion 15c by the idle gear 23 and the braking force by the first braking means 15 is drawn out, so that the braking forces of both braking means act. It will be.

Here, the gear ratio of the tooth portion 15f of the first rotation braking portion 15c and the tooth portion 21f of the second rotation braking portion 21c is nA: nB, and the teeth of the first arc-shaped arm 13 and the second arc-shaped arm 16 are respectively. Assuming that the numbers are NA and NB, the first input gear 15a and the second input gear 21a have the same number of teeth N, and the braking forces of the first and second braking means 15 and 21 are the same, the first input means (First arcuate arm 13) and second
The braking force obtained when each of the input means (second arcuate arm 16) rotates is the first arcuate arm; (1 + nA / nB) × NA / N the second arcuate arm; (1 + nB / nA) × NB / N.

As shown in the example, the number of teeth of the first arcuate arm 13 is structurally different.
If the NA is smaller than the number of teeth NB of the second arc-shaped arm 16, the lid 4 attached to the first arc-shaped arm may be lighter than the sheet 3 attached to the second arc-shaped arm, but the lid is a decorative cover. When the weight is equal to or heavier than that of the seat, as in the state in which the brake is applied, it is effective to apply both braking means to increase the braking force.

Next, the operation when the lid 4 and the sheet 3 which are both open are closed at the same time will be described. In this case, three modes can be envisioned.

The first is a case where both are closed at the same rotation speed.
In this case, the rotation speed of the first input gear 15a is N / NA,
The rotation speed of the second input gear 21a is N / NB, and the gear ratio n of the first rotation braking portion 15c and the second rotation braking portion 21c meshing with each other is n.
When the condition of N / NA × nB / nA = N / NB is satisfied by A: nB, the one-way clutch 1 that connects each input gear 15a, 21a and each rotation braking unit 15c, 21c respectively
Since 5e and 21e do not idle, the first arc-shaped arm 13 (lid 4)
And the braking force applied to the second arcuate arm 16 (seat 3) becomes the first arcuate arm; NA / N the second arcuate arm; NB / N, and when the lid and the seat rotate independently, respectively. Compared with this, the braking force is reduced. Therefore, the polymer of the lid 4 and the sheet will be closed rather quickly.

The second is when the braking force on the lid 4 is weak. In this case, the first arcuate arm 13 rotated by the lid 4 tends to rotate faster than the second arcuate arm 16. However, since the lid 4 is placed higher than the sheet 3, it cannot overtake the sheet, and the two overlap and rotate in the closing direction.

The third is that the braking force on the seat 3 is small and the lid 4
This is the case where the seat 3 rotates faster than the seat 3. In this case, the second arcuate arm 16 rotates faster than the first arcuate arm 13. This rotation of the arm 16 is performed by the second pinion 1
8, the second one-way clutch 21e, the second rotation braking portion 21c is rotated to be braked by the second control means 21. At the same time, the rotation of the rotation braking portion 21c is first rotated by the idle gear 23.
It is transmitted to the rotation braking unit 15c to rotate it. At this time, the first rotation braking portion 15c is rotated by the first input gear 15a rotated by the lid 4, and the rotation speed by this is transmitted through the idle gear 23. It is slower than the speed of the second rotation control unit 21c. Therefore,
The first rotation braking unit 15c idles the first one-way clutch 15e and rotates faster than the first input gear 15a. Therefore, the braking force by the first braking means 15 is applied to the seat 3 which rotates in advance, and the closing speed thereof becomes slow.

On the other hand, when the first one-way clutch 15e idles, the braking force does not act on the first input gear 15a, that is, the first arcuate arm 13 that rotates the first input gear 15a, and the lid 4 rotates without braking. Begin to. The lid 4 on which the braking force does not act,
Since the speed is high, it immediately catches up with the seat 3, and the seat 3 is superposed on the seat 3 to rotate together in the closing direction.

The third state is that the movements of the lid and the seat are not integrated when they are closed at the same time, but in the third state, the rotation of the second braking means 21 is transmitted to the first braking means 15 by the idle gear. Then, the braking action of the braking means 15 is released and the lid 4 is swung quickly, so that the sheet and the lid are superposed and simultaneously swung. In this case, if the gear ratio of the tooth portions 15f, 21f and the idle gear 23, which constitute the rotational coupling means, is optimally selected, it is possible to shorten the time until the stacking of the lid and the sheet. When the weight of the seat is particularly heavier than that of the lid, it is effective to increase the braking force on the seat side and decrease the braking force on the lid side.

Therefore, as shown in FIG.
Incorporating the one-way clutch 100, the second braking means 21
The rotation on the side is transmitted to the first braking means 15 side, but the rotation in the opposite direction is not transmitted. That is, when only the lid 4 rotates, the braking force of the first braking means 15 is received,
When only the seat 3 is rotated, the braking force by the second braking means 21 and the first braking means 15 is received, and when the lid and the seat are simultaneously rotated, the braking of each of the braking means is performed, but the rotation of the seat is rotated. When the moving speed is fast, the third one-way clutch is operated so as to release the braking force of the lid and stack the lid and the sheet. By doing so, it is possible to reduce the time difference between the three modes when the lid and the sheet rotate simultaneously, when only the lid rotates, and when only the sheet rotates.

Next, another embodiment of the present invention will be described with reference to FIG. This embodiment relates to a system in which devices for adjusting the rotation of the lid 4 are arranged on both sides of the lid 4 and the hinge of the seat 3. The seat 3 is openably / closably supported by a hinge mechanism (not shown). The seat 3 has a first input shaft 130 as a first input means integrally connected to the hole 3a, and the rotation of the shaft is input to the first braking means 150.
The first input shaft 130 and the first braking means 150 rotate freely.
The lid 4 is adapted to be braked by the second braking means 210 via the second input shaft 160 integrally connected thereto. The second input shaft 160 and the seat 3 rotate freely in the hole 3b. The first and second braking means 150, 210 may be the same as the system shown in the above-described embodiment or may be another type of braking means, but inside thereof, the first and second one-way clutches described above may be provided. It is essential that a clutch having the same function as is built in. Gears 60 and 62 that are integrally formed with or rotated by the respective rotary braking units of the first braking unit 150 and the second braking unit 210 are gears 61 and 63 that mesh with each other and a connecting shaft 64 that connects them. Are rotationally connected by a rotary connecting means. The operation of this embodiment is the same as that of the above-mentioned embodiment, and therefore its explanation is omitted.

In the embodiments described above, the first and second braking means have the same configuration for convenience. Using the braking means of the same structure has the effect of cost reduction,
The present invention does not necessarily use the braking means having the same structure. Further, since the braking force of each braking means can be made to interact with each other by the rotational coupling means, it does not matter if there is a slight difference in the braking force of each braking means.

Further, although the present invention has been described by taking the toilet bowl as an example, it is needless to say that the present invention can be applied to a device having a member that independently rotates instead of the lid or the sheet.

(Effects of the Invention) As described above, according to the present invention, since the braking forces of the two braking means can be used mutually, it is not necessary to prepare braking means having different braking forces, and a low-cost speed governor can be provided. can get. In addition, members such as the lid and the sheet that are required to be overlapped and rotated can be rotated at the same speed with a simple configuration.

Further, when the one-way clutch is provided in the rotary coupling means, the braking force of the other braking means can be added to the braking means having the insufficient braking force.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a toilet bowl as a device to which the present invention is applied, and FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention,
FIG. 3 is a plan sectional view showing the first braking means and the first input means of the same, FIG. 4 is a plan sectional view showing the second braking means, the second input means and the rotational coupling means of the same, and FIG. First braking means,
FIG. 6 is a vertical sectional view showing a mutual positional relationship between the second braking means and the rotary coupling means, and FIG. 6 is a partial sectional schematic plan view showing another embodiment of the present invention. 1 ... Toilet bowl, 2 ... Toilet bowl body, 3 ... Sheet, 4 ... Lid, 11 ...
… Case, 13 …… First arcuate arm, 14 …… First pinion, 15 …… First braking means, 15a …… First input gear, 15b ……
Braking case, 15c ...... First rotation braking part, 15e ...... First one-way clutch, 16 ...... Second arcuate arm, 18 ...... Second pinion, 21 ...... Second braking means, 21a ...... Second input Gear, 21b ...
… Braking case, 21c …… Second rotation braking part, 21e …… Second one-way clutch, 15f, 21f …… Tooth part, 23 …… Idle gear,
100 …… Third one-way clutch.

Claims (2)

(57) [Claims] 1. A first input means interlocked with the rotation of a lid, a second input means interlocked with the rotation of a seat, and a rotation braking portion rotated by the first input means for closing the lid. Rotation of the first braking means, first braking means for applying braking to the rotation, second braking means for applying rotation to the rotation of the seat in the closing direction by the rotation braking part rotated by the second input means, A first one-way clutch provided between the braking portion and the first input means, a second one-way clutch provided between the rotary braking portion of the second braking means and the second input means, A speed governing device such as a toilet bowl, which is provided with a rotary coupling means for rotationally coupling the rotary braking portions of the first braking means and the second braking means to each other. 2. A speed governor for a toilet bowl or the like according to claim 1, characterized in that a third one-way clutch is provided in the rotary coupling means.