JPH07313400A - Braking device for toilet seat and lid - Google Patents

Abstract

PURPOSE:To provide a braking device for toilet seat and lid that restrains increase of the internal pressure of the braking device, provides smooth pivoting of the seat and lid and quick response to an operating force, and achieves good mountability. CONSTITUTION:A braking device comprises an input shaft 8 for supporting toilet seat and cover to a casing 12 filled with viscous fluid 13, a retainer 9 that rotates together with the input shaft 8, a pressure receiving part 14 connected to the retainer 9 and being pivotable in the viscous fluid 13, and elastic members 15, 16 that engage with the pressure receiving part 14 when the seat or lid is pivoted in the lowering direction C. A viscous fluid passage 17 extends in the directions of the pivoting of the seat and lid such that the cross section thereof decreases in accordance with the pivot angle of the pressure receiving part 14 as the seat and lid are pivoted in the lowering direction. The pressure receiving part 14 has a release valve 1 that is opened by the pivoting of the seat and lid in the rising direction O, and a pressure reducer 19 that elastically deforms when the seat and lid are excessively pivoted. A pressure absorber 21 is provided in a chamber 20 formed in the casing 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braking device which applies braking when a toilet seat or a toilet lid rotatably supported is rotated in one direction.

[0002]

2. Description of the Related Art A braking device that applies a brake when a rotatably supported toilet seat or toilet lid is rotated in the closing direction is widely known. For example, a shearing type braking device that rotates a rotating member that rotates integrally with a support shaft of a toilet seat or a toilet lid in grease or oil to generate a braking force by its resistance, or an orifice is provided in the rotating member. , When rotating in the tilting direction, the orifice is closed and braking force is generated by the resistance of the oil passing through the gap between the rotating member and the case. When rotating in the standing direction, the orifice is opened and the braking force in the standing direction. There is an orifice type braking device that reduces the above.

[0003]

By the way, in a braking device using a viscous fluid such as oil, oil leakage, that is, sealing performance is the most problematic, and it is preferable that the internal pressure in the case for enclosing the oil is low. . However,
In the above-mentioned orifice type, since the braking force applied to the rotating member is controlled only by the gap between the rotating member and the case,
There is no problem in that the rotating member rotates at a constant speed, but if an excessive force is applied to increase the rotating speed, the pressure inside the case may rapidly increase, causing oil leakage. On the other hand, in the shearing type, since the braking force is substantially determined by the viscosity of oil or grease, a highly viscous material is required to obtain a certain braking force. It leaves a problem that it leads to a feeling of rotation of the seat and the lid of the toilet and a decrease in the starting property.

[0004]

In view of the above, according to the first aspect of the present invention, an input shaft for supporting a toilet seat and a toilet lid in a case body in which a viscous fluid is sealed so as to be able to rise and fall, and an integral rotation with the input shaft. A pressure receiving portion provided on the holding member for rotating in the viscous fluid, an elastic member engaging with the pressure receiving portion when the toilet seat and the toilet lid rotate in the tilting direction, and a rotation of the toilet seat and the toilet lid. A viscous fluid flow path that is formed in the moving direction and whose cross-sectional area decreases according to the rotation angle of the pressure receiving portion when the toilet seat and the toilet lid rotate in the falling direction, and the pressure receiving portion. ,
An open valve that opens when the toilet seat and the toilet lid rotate in the upright direction, and a decompression portion and a viscous fluid that are provided in the pressure receiving portion and that elastically deform when the toilet seat and the toilet lid excessively rotate in the tilting direction. A pressure absorbing member is provided in a vacant chamber provided in a case body in which is enclosed. In the invention according to claim 2, the elastic member is constituted by a spring that is not coaxial with the input shaft, and in the invention according to claim 3, a plurality of the springs are provided, and a partition portion separating the compression springs is provided in the pressure receiving portion. . In the invention according to claim 4, a fixing hole formed in the case body and a lid body corresponding to the fixing hole and communicating with the case body at a portion deviating from a corresponding portion of the fixing hole. A hole is provided, and after the viscous fluid is injected into the case body, the fixing hole and the hole are placed at positions deviated from each other to bring the lid body and the case body into close contact with each other. According to a fifth aspect of the invention, a toilet bowl is formed by forming a concavo-convex portion on the outer periphery of the case body, and accommodating the case body in a mounting member having an interior formed in a shape matching the outer periphery of the case body having the concavo-convex portion. Fixed to.

[0005]

According to the first aspect of the present invention, when the toilet seat and the toilet lid rotate in the tilting direction, the pressure receiving portion of the holding member which rotates integrally with the input shaft is rotated in the viscous fluid to change the cross-sectional area of the orifice. It engages with the elastic member while gradually decreasing, and braking is applied to the rotation of the toilet seat and the toilet lid. When the toilet seat and the toilet lid rotate in the upright direction, the opening valve provided in the pressure receiving portion opens, and the pressure applied to the pressure receiving portion is reduced when the toilet seat and the toilet lid rotate in the upright direction. According to the second aspect of the invention, when the toilet seat and the toilet lid rotate in the tilting direction, the rotation in that direction is buffered by the viscous fluid and the spring that are not coaxial with the input shaft.
According to the invention of claim 3, a plurality of springs are provided,
Since the partition is formed by the partition formed in the pressure receiving portion, they do not interfere with each other during expansion and contraction. According to the invention as set forth in claim 4, the fixing hole formed in the case body and the hole formed in the lid body are placed at positions deviated from each other to bring the lid body and the case body into close contact with each other. Excess air or oil in the case escapes from the part, and in that state, the lid is rotated and the fixing hole and the hole are aligned and screwed to fix the internal pressure in the case. . According to the invention described in claim 5, since the case body is fixed to the toilet bowl by accommodating the case body in a mounting member having an inside formed in a shape matching the outer periphery of the case body having the uneven portion, the toilet seat and the toilet lid are opened and closed. Even so, the internal shape of the mounting member restricts the rotation of the case body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a braking device 1 which supports a toilet lid 3 and a toilet seat 4 of a toilet 2 so as to be able to be tilted up and down and applies a brake to a rotation in a tilting direction. The braking device 1 is mounted in a cover 5 as a mounting member, and a flange portion 5 a formed on the cover is screwed to a nut portion 6 provided on the toilet bowl 2.
It is fastened to A and attached to the upper end of the toilet bowl 2. Here, the separate braking device 1 is used for the toilet lid 3 and the toilet seat 4, but since they have the same configuration, the description will be continued by taking the braking device 1 located on the left side in FIG. 2 as an example.

As shown in FIG. 3, a hinge 7 attached to a toilet seat 4 is supported by a braking device 1 located on the left side by an input shaft 8 so as to be able to move up and down. The input shaft 8 is provided with a cut-off portion 8a on its tip side and is press-fitted into a support hole 9a of a rotating body 9 as a holding member provided in the braking device 1. The toilet lid 3 is rotatably supported by a support shaft 10 provided on the side surface of the cover body 5B via a hinge 11, but is not affected by the braking device 1 here. Toilet lid 3
1 and the toilet seat 4 from the fully open position indicated by the symbol E in FIG.
It is rotated up to the closed position indicated by. This fully open position is 1
It is set at 35 °. In the braking device 1 located on the right side of FIG. 2, the hinge 7 of the toilet seat 4 has the support shaft 10
The hinge 11 of the toilet lid 3 is supported by the rotating body 9 of the braking device by the input shaft 8.

The cover 5 includes a cover body 5B and a cover lid 5.
It is composed of A. The inside of the cover body 5B is formed in substantially the same shape as the external shape of the case 12 that constitutes the exterior of the braking device 1, and by housing the braking device 1, the rotation of the device is stopped. On the opening surface of the cover body 5B,
A plurality of small holes 5b and screw holes 5c are formed. The cover lid 5A has a hole 5C into which the input shaft 8 is inserted, and a mounting hole 5 corresponding to the projection 5d and the screw hole 5c inserted into the small hole 5b.
e are formed respectively, and after the braking device 1 is housed inside the main body, the projection 5d is inserted into the small hole 5b, the cover main body 5B and the cover lid 5A are aligned, and a screw (not shown) is screwed through the mounting hole 5e. It is united by screwing it into 5c. Here, the cover main body 5B and the cover lid 5A are separate bodies, but the cover main body 5B may be attached to the cover main body 5B by a hinge or the like so as to be openable and closable so as to be integrated with each other.

The braking device 1 is, as shown in FIGS. 4 and 5,
A pressure receiving portion 14 provided on the rotating body 9 into which the input shaft 8 is inserted, and an input shaft that engages with the pressure receiving portion 14 when the toilet seat 4 is turned in the tilt direction shown by the arrow C in a case 12 that constitutes the exterior thereof. Compression coil springs 15 and 16 as elastic members, which are not arranged coaxially with 8, and are formed in the rotating direction of the toilet seat 4,
When the toilet seat 4 rotates in the tilting direction, the volume of the viscous fluid flow path 17 is reduced according to the rotation angle of the pressure receiving portion 14, the pressure receiving portion 14 is provided with the viscous fluid flow path 17, and the toilet seat 4 stands up. Opening valve 18 that opens by turning in the direction, a safety valve 19 provided in the pressure receiving portion 14 as a pressure reducing portion that is elastically deformed when the toilet seat 4 excessively turns in the tilting direction, the rotating body 9 and the case 12 A space 20 formed by the peripheral surface 12a and into which the oil 13 as a viscous fluid is injected, and a pressure absorbing member 21 provided in the space are provided. In case 12,
The lid 22 is fixed with a plurality of screws 23.

The case 12 is, as shown in FIGS. 5 and 7,
It is formed in a bottomed cylindrical shape, and on its outer peripheral surface, a plurality of inflated portions 12c are formed as concavo-convex portions having screw holes 12b into which screws 23 are screwed. The inside of the cover body 5B is formed in a shape that matches the external shape of the case 12 provided with the inflating portion 12c. A circumferential groove 24 is formed on the upper surface of the case 12, and an O-ring 25 made of a rubber material is attached to the groove 24. Case 1
As shown in FIG. 6, a concave portion 12d and a viscous fluid flow path 17 are formed in the bottom portion of 2. The viscous fluid flow path 17 is an arcuate groove extending in the rotating direction of the toilet seat 4, and is formed such that the depth thereof gradually decreases as it advances in the direction of arrow C, as shown in FIG. ing.

The starting end 17a of the viscous fluid flow path 17 is
It is provided at the position of the pressure receiving portion 14 when the opening angle α of the toilet seat 4 shown in FIG. 1 is located near 90 ° (see FIG. 17b). As shown in FIGS. 4 and 6, a protrusion 12D having a U-shaped space 20 is formed toward the inner surface of the inner peripheral surface 12a of the case. The protruding portion 12D is provided with a screw hole 26 as a fixing hole. One side of protrusion 12D 1
The pressure absorbing member 21 is disposed and fixed on the 2Da side. The pressure absorbing member 21 is a sponge-like rubber material, and when the oil 13 in the space 20 expands due to heat, it contracts and absorbs the expansion of the oil 13.

The lid 22 is formed in substantially the same shape as the shape of the case 12, and as shown in FIGS. 5, 9 and 10, a mounting hole 22b and a screw hole 26 are formed at a portion facing the screw hole 12b. Holes 27 are formed in the opposing portions of the above. The hole 27 is arranged so as to be positioned in the space 20 when the lid 22 is displaced and joined to the case 12. An opening 22 a is formed in the center of the lid 22, and a circumferential projection 22 c that engages with the circumferential groove 24 is formed on the lower surface of the lid 22 in the case 1.
It is formed toward 2.

As shown in FIGS. 4 and 5, the rotating body 9 has an upper end 9b in an opening 22a of the lid and a recess 12d of the case.
And the lower end 9c are rotatably supported. As shown in FIGS. 11 and 12, a recess 9d is formed in the upper end 9b, and a rubber O-ring 28 is mounted in the recess 9d as shown in FIG. Secured. Further, the rotating body 9 is formed in a cylindrical shape so that the outer peripheral surface 9A thereof can be slidably contacted with the protrusion 12D in the case.

The outer peripheral surface 9A is provided with a pressure receiving portion 14 protruding toward the inner peripheral surface 2a and a rib 29 as a partition portion separating the compression coil springs 15 and 16. The outer periphery 14a of the pressure receiving portion 14 is formed in an arc shape that is in sliding contact with the inner peripheral surface 2a with a slight gap, and divides the space 20 into an oil chamber 20A and an oil chamber 20B (Fig. 4, FIG. 11).

When the toilet seat 4 is in the open position E, the pressure receiving portion 14 interferes with the pressure absorbing member 21 on one side 14b thereof and is placed at a position away from the viscous fluid flow passage 17.
The rotation limit position of the toilet seat 4 in the opening direction is regulated by the interference with the pressure absorbing member 21. The pressure receiving portion 14 has two spaces 30 and 31 extending in the axial direction and communicating with each other. A flow path 30A communicating with the space 30 is provided on one side 14b.
However, the other side 14c has a flow path 30B communicating with the space 31.
Are provided in parallel in the axial direction. The flow paths 30A and 30B are set so that the flow rate of oil passing through the rotary body 9 during rotation is larger than that in the viscous fluid flow path 17.

As shown in FIGS. 13 and 14, the safety valve 19 has a U-shaped cross section, and a main body 19a is provided with a long hole opening 19b which is opened and closed by the opening valve 18 so as to penetrate in the thickness direction thereof. In the vicinity of the long hole opening 19b, the opening valve 1
A curved surface is formed in the longitudinal direction so as to match with the outer circumference of 8. Side portions 19c and 1 integrally formed with the main body 19a
9d is formed to be curved toward the side facing the open valve 18, and a gap is formed between the 9d and the main body 19a. That is, the semi-circular opening 32 is formed on both sides of the main body 19a together with the long hole opening 19b. This safety valve 19 is made of an elastic material with high oil resistance,
As shown in FIGS. 4 and 5, the curved side portions 19c and 19d are lightly press-fitted into the space 30 so as to face the flow path 30A.

The open valve 18 is a pin longer than the long hole opening 19b, and is arranged on the convex portion 34 which is loosely fitted in the space 31 and formed at the bottom of the space. The convex portion 34 is shown in FIG.
As shown in FIG.
It extends to a pair of guide pieces 33 formed between the guide pieces 33 and 1, and the height h thereof is set lower than the position of the long hole opening 19b when the safety valve 19 is located in the space 30. Further, the width L is formed to be narrower than the interval L1 of the guide piece 33, and the flow path R connected to the interval L1 is formed on both sides of the convex portion 34.

The guide piece 33 serves as a safety valve 19 for the release valve 18.
The movement of the safety valve 19 is restricted and the opening 32 of the safety valve 19 is normally closed. Further, the side portions 19c and 19d of the safety valve 19 are pushed by the opening valve 18 to separate the safety valve 19 from the guide piece 33 when the toilet seat 4 is overloaded when the toilet seat 4 is rotated in the tilting direction. It is elastically deformable.

The compression coil springs 15 and 16 are shown in FIG.
As shown in, the oil chamber 20B located on the tilting direction C side of the pressure receiving portion 14 is provided so that the winding direction thereof is the same direction. Compression coil spring 15,1
One ends 15a and 16a of 6 are locked to the other side surface 14Db of the protrusion 14 located in the falling direction C, and the other ends 15b and 16b are between the other side surface 14Db and the other side 14c of the pressure receiving portion 14. It is slidable with. The other ends 15b and 16b of the compression ill spring are set to have a length capable of contacting the pressure receiving portion 14 when the opening angle α of the toilet seat 4 shown in FIG. 1 is about 45 °.

The operation of the braking device 1 will be described separately for the falling direction and the standing direction. (Operation in the falling direction) First, when the toilet seat 4 is manually rotated from the fully open position indicated by the reference sign E in FIG. 1 to the closed position indicated by the reference sign F, the support shaft 8 is rotated and the rotating body 9 is moved as shown in FIG. (A)
It rotates in the tilt direction C from the position shown in. Then, the pressure receiving portion 14 moves in the space 20 in the tilting direction C, and as shown in FIG. 17, the release valve 18 is moved by the pressure from the oil chamber 20B in the direction of closing the long hole opening 19b of the safety valve. . This state continues because the toilet seat 4 is in the closed position. Therefore, the oil 13 located in the oil chamber 20B
However, it flows toward the oil chamber 20A through the viscous fluid flow passage 17 until the pressure receiving portion 14 and the viscous fluid flow passage 17 are engaged.

Next, when the toilet seat 4 exceeds the opening angle of 90 °, the toilet seat 4 falls down by its own weight, and the pressure receiving portion 14 in the state shown in FIG. 16 (b) rotates toward FIG. 16 (c). In this section, since the pressure receiving portion 14 engages with the viscous fluid flow passage 17, the flow passage cross section becomes smaller as the rotation in the tilting direction progresses, so that the passage amount of the oil 13 accompanying the movement of the pressure receiving portion 14 gradually decreases. The pressure in the case 12 rises, and the pressure of the received pressure brakes the rotation of the toilet seat 4.

As the rotation of the toilet seat 4 shown in FIG.
The pressure receiving portion 14 in the state shown in FIG.
In this section that rotates toward the closed position shown in (d),
The viscous fluid flow path 17 has already been closed, and the pressure receiving portion 14 has already been closed.
The other ends 15b, 16 of the compression coil springs 15, 16
Since b comes into contact with the coil springs 15 and 16 and is rotated while pressing them, the oil 13 flows only through a slight gap between the inner peripheral surface 12a of the case and the pressure receiving portion 14, and the pressure receiving portion 14 has high resistance. The elastic force of the coil springs 15 and 16 is applied,
Further braking is applied to the turning movement.

Therefore, in the turning section from FIG. 16 (a) to FIG. 16 (b) which is the initial turning stage of the toilet seat 4 shown in FIG. 1, the toilet seat 4 is braked only by the resistance of the oil 13, so that the toilet seat 4 is tilted. Good startability to C. In addition, FIG. 16 showing the middle rotation period.
In the rotation section from (b) to FIG. 16 (c), the oil resistance due to the viscous fluid flow path 17 increases, and further, the rotation from FIG. 16 (c) to FIG. In the section,
By applying the elastic force of the coil springs 15 and 16 to the resistance of the oil 13, a high braking force can be secured. Therefore, it is possible to reduce the viscosity of the oil 13 as compared with a shearing type braking device that relies only on the viscosity of oil or grease, and it is possible to suppress an increase in the pressure inside the case 12.

When the toilet seat 4 is excessively rotated, for example, when the toilet seat 4 is forcibly rotated from the standing position E toward the closed position F, the resistance of the oil 13 applied to the pressure receiving portion 14 increases. When this resistance, that is, the internal pressure in the case 12 exceeds a certain level, as shown in FIG.
Will press the safety valve 19 further. Then, the side portions 19c and 19d of the safety valve 19 are elastically deformed, and a space X is formed between the guide piece 33 and the safety valve 19 to form the flow path R.
And the opening 32 are communicated with each other. Therefore, the oil 13 in the oil chamber 20B located in the falling direction C flows into the oil chamber 20A from the flow passage 30B, the flow passage R, and the opening 32 through the flow passage 30A, and an increase in internal pressure at the time of load is suppressed.

(Operation in the upright direction) When the toilet seat 4 is rotated from the closed position F shown in FIG. 1 toward the fully opened position E, the pressure receiving portion 14 moves from FIG. 16 (d) to FIG. 16 (a). That is, while rotating in the upright direction O, the compression coil springs 15 and 16 also expand accordingly. Pressure receiving part 1
When 4 rotates in the upright direction O, the pressure of the oil chamber 20A located in the upright direction O increases, as shown in FIG.
The open valve 18 is moved in a direction away from the safety valve elongated hole opening 19b to open the safety valve 19. Then, the oil 13 flows from the flow path 30A into the space 31 from the elongated hole opening 19b, flows into the oil chamber 20B via the flow path 30B, and the resistance to the pressure receiving portion 14 due to the rotation in the standing direction O is reduced. .

That is, the open valve 18 is easily opened by turning in the standing direction, and the flow rate of oil passing through the flow path 30A at the time of turning is larger than that of the viscous fluid flow path 17. Since the oil 13 is drained from the oil chamber 20A located in the upright direction at 30B, the rotation resistance of the toilet seat 5 in the upright direction is smaller than that in the falling direction, and the toilet seat 4 can be moved smoothly and smoothly to the open position. Can be returned.

As described above, since the pivotal braking of the toilet seat 4 in the tilting direction is generated by the oil 13 and the compression coil springs 15 and 16, the combination of the viscosity of the oil 13 and the spring force of the coil springs 15 and 16 controls it. The power can be adjusted, and it is not necessary to use the oil 13 having high viscosity. Further, when the pressure absorbing member 21 is arranged on the oil chamber 20A side and the pressure receiving portion 14 is in the standing position of the toilet seat 4.
When the pressure inside the case 12 rises due to the temperature rise of the oil 13, it deforms and absorbs the increased pressure, so that the rise in the pressure inside the case 12 can be prevented and the toilet seat 4 that has reached the fully open position can be prevented. The turning force can be absorbed, and the toilet seat 4 can be held in the fully open position without flapping. In this embodiment, the toilet seat 4 is located on the left side in FIG.
Since the description has been given using the braking device 1 that supports the hinge 7 of
Although only the raising / lowering movement of the toilet seat 4 is shown, the same effect is not produced even in the raising / lowering movement of the toilet lid 3 supported by the braking device 1 located on the right side in FIG. There is no change.

Further, in this embodiment, the open valve 18 is formed in a pin shape, but as shown in FIG. 20, a block open valve 180 having a contact surface 180a longer than the elongated hole opening 19b of the safety valve 19 is provided. You can also do it. In this case, the convex portion 180A formed with the contact surface 180a is connected to the guide piece 3
3 is formed into a space L1 that can be loosely fitted and inserted, and extends from the convex portion 180A toward the flow path 30B.
U-shaped arms 180B wider than 0A are provided in the longitudinal direction. In this case, when the safety valve 19 is opened, the flow of oil flows from the elongated hole opening 19b to the projection 180.
It passes through the side surface 180C of the convex portion located between B and 180B to become the flow path 30B.

The braking device 1 in this embodiment has an input shaft 8
The support shaft 10 and the support shaft 10 are separately provided as shown in FIG. 2, but as shown in FIG. 21, the rotary shaft 9 and the case 12 may be penetrated to insert the input shaft 8 ′ into a single shaft. it can. At this time, the lower surface of the case 12 that is opened has the same configuration as the upper surface side, and the bottom lid 22 ′ having the same configuration as the lid 23a is attached to the screw 2
It is fastened to the lower surface of the case 12 at 3 '. Further, an O-ring 28 'is attached between the opening 22'a supporting the lower end 9b of the rotating body 9 and the lower end 9b, and an O-ring 25' is also attached between the bottom cover 23 'and the lower surface of the case 12. To secure the sealing property.
Further, in the present embodiment, the braking device 1 is mounted on the toilet bowl 2, but it may be mounted on the cleaning unit in the toilet bowl having the automatic cleaning function.

Here, an example of an assembling procedure of the braking device 1 will be described with reference to FIGS. 4 and 5.

First, the compression coil springs 15 and 16 are put in the space 20 of the case 12 so that the winding directions thereof are the same, and the pressure absorbing member 21 is placed on one side 12Da of the protrusion 14D.
Attach to. Next, the space 30 of the pressure receiving portion 14 of the rotating body 9,
The safety valve 19 and the release valve 18 are respectively dropped into 31 and inserted, and the O-ring 28 is attached to the step portion 9d, and then inserted into the case 12. At this time, the rib 29 formed on the rotating body 9
By arranging the compression coil springs 15 and 16 above and below, it is possible to prevent the springs from overlapping when expanding and contracting.

When the rotating body 9 enters the case 12, the O-ring 25 is mounted in the circumferential groove 24 and the oil 13 is put therein. Here, silicon oil having a low viscosity is injected into the empty chamber 20 of the case using a syringe-like instrument until the upper liquid surface of the O-ring 25 is reached. At this time, if the oil 13 contains a large amount of air bubbles, it is defoamed, and the lid 22 is placed on the screw hole 26 of the case 12 shown by the arrow A with the vent hole 27 being shifted, as shown in FIG. Push the lid 22 and case 1
Adhere to 2. Then, since the vent hole 27 is located above the oil chamber 20B in FIG. 4, excess oil 13 and air from the oil chamber pass through the vent hole 27 and the case 1
2 is discharged.

After removing the oil, the lid 22 at the position shown by the arrow A in FIG. 22 is rotated counterclockwise in the direction of the arrow B to align the screw holes, and the lid 22 is fastened to the case 12. Finally, wash to remove oil.

As described above, the safety valve 19 and the release valve 18 can be mounted on the rotating body 9 by dropping them into the openings 30 and 31, and at the same time, the excess oil 13 and air in the case 12 can be removed and the lid 22 can be put on the case 12. Since they are fastened, the repulsive force from the case 12 when fastening the lid 22 to the case 12 is reduced, and the assemblability is easy. Since the compression coil springs 15 and 16 are partitioned by the rib 29, the other end 15 of the spring
The b and 16b sides do not have to be fixed and the installation is good.

[0035]

As described above, according to the first and second aspects of the present invention, since the excessive pressure rise inside the case is suppressed, the risk of oil leakage of the braking device can be reduced, and at the same time, to the toilet seat and the toilet lid. The braking can be adjusted by a combination of a viscous fluid flow passage whose volume is reduced according to the tilting angle of the toilet seat and the toilet lid and a spring that is not coaxial with the input shaft. It is also possible to provide a braking device having excellent startability. According to the third aspect of the present invention, the spring is partitioned by the partition formed in the pressure receiving portion and does not interfere with each other during expansion and contraction, so that the spring can be easily attached to the case body and the spring support structure can be simplified. Therefore, the cost can be reduced. According to the invention described in claim 4, excess air and oil in the case are extracted from the vent hole communicating with the case body, and the lid body is rotated to fasten the lid and the case body. Can be reduced, and the lid can be easily attached to the case body, leading to improved workability. According to the invention of claim 5, since the case body is fixed to the toilet bowl by accommodating the case body in a mounting member having an inside formed in a shape matching the outer periphery of the case body having the uneven portion, the toilet seat and the toilet lid are opened and closed. Even so, the internal shape of the mounting member limits the rotation of the case body, and the braking device can be fixed stably.
It is possible to reduce clinging when opening and closing the toilet seat and the toilet lid.

[Brief description of drawings]

FIG. 1 is a side view showing an example of mounting a toilet seat and a lid of a braking device according to an embodiment of the present invention to a toilet bowl.

FIG. 2 is a plan view showing a mounting state of a braking device, a toilet lid and a toilet seat.

FIG. 3 is an exploded perspective view of a cover that houses a braking device.

FIG. 4 is a plan view showing a configuration of a braking device of the present invention.

5 is a cross-sectional view of the braking device shown in FIG.

FIG. 6 is a plan view showing a configuration of a case body.

7 is a cross-sectional view of the case body shown in FIG.

FIG. 8 is a development view of a viscous fluid flow path.

FIG. 9 is a plan view of a lid attached to the case body.

10 is a cross-sectional view of the lid shown in FIG.

FIG. 11 is a plan view showing a configuration of a holding member.

12 is a cross-sectional view of the holding member shown in FIG.

FIG. 13 is a perspective view of an opening valve and a safety valve.

14 is a front view of the safety valve shown in FIG.

FIG. 15 is a partially cutaway perspective view showing a structure of a pressure receiving portion.

FIG. 16A is an operation diagram showing a state inside the braking device when the toilet lid and the toilet seat are in the fully open position, and FIG. 16B is a braking device when the toilet lid and the toilet seat are located near an opening angle of 90 °. Fig. 6 (c) is an operation view showing the state inside the toilet lid and seat with an opening angle of 45 °.
Operation diagram showing the state in the braking device when located in the vicinity,
(D) is an operation view showing a state in the braking device when the toilet lid and the toilet seat are located at the closed position.

FIG. 17 is an enlarged view showing the operations of the safety valve and the opening valve when the toilet lid and the toilet seat rotate in the tilting direction.

FIG. 18 is an enlarged view showing the operation of the safety valve and the opening valve when the toilet lid and the toilet seat are rotated in the upright direction.

FIG. 19 is an enlarged view showing the operation of the safety valve and the opening valve when an overload is applied to the rotation of the toilet lid and the toilet seat in the falling direction.

FIG. 20 is a perspective view showing a modified example of an open valve and a configuration of a safety valve.

FIG. 21 is a cross-sectional view showing a modified example of the case body.

FIG. 22 is a plan view showing an operation when draining oil from the case body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Braking device 2 Toilet bowl 3 Toilet seat 4 Toilet lid 5 Mounting member (cover) 8 Input shaft 9 Holding member (rotating body) 12 Case body 12c Concavo-convex part (expansion part) 13 Viscous fluid (oil) 14 Pressure receiving part 15 and 16 Elastic member (Compression coil spring) 17 Viscous fluid flow path 18 Opening valve 19 Pressure reducing part (safety valve) 19b Long hole opening 20 Vacancy (oil chamber) 21 Pressure absorbing member 26 Fixing hole (screw hole) 27 Vent hole 29 Partition part (rib) 32 Opening C Falling direction O Standing direction

Claims (5)

[Claims] 1. An input shaft for supporting a toilet seat and a toilet lid of a toilet in a case body in which a viscous fluid is sealed, and a holding member that rotates integrally with the input shaft, and A pressure receiving portion that rotates, an elastic member that engages with the pressure receiving portion when the toilet seat and the toilet lid rotate in the tilt direction, and a toilet seat and a toilet lid that are formed in the rotation direction of the toilet seat and the toilet lid. When rotating in the tilting direction, the viscous fluid flow passage whose cross-sectional area decreases according to the rotation angle of the pressure receiving portion, and the pressure receiving portion, which is provided in the pressure receiving portion, rotates in the upright direction of the toilet seat and the toilet lid. The open valve that opens by movement, the pressure reducing portion that is provided in the pressure receiving portion and that elastically deforms when the toilet seat and the toilet lid are excessively rotated in the tilting direction, and the pressure absorption in the empty space provided in the case body. And a seat lid braking device including a member. 2. The braking device for the toilet seat and the toilet lid according to claim 1, wherein the elastic member is a spring that is not coaxial with the input shaft. 3. The toilet seat and toilet lid braking device according to claim 2, wherein a plurality of springs that are not coaxial with the input shaft are provided, and a partition portion that separates the springs is provided in the pressure receiving portion. 4. A fixing hole formed in the case body, and a through hole formed in a lid body which corresponds to the fixing hole and is located outside a portion corresponding to the fixing hole and communicates with the case body. The lid body and the case body are brought into close contact with each other by disposing the fixing hole and the vent hole at positions displaced from each other after injecting the viscous fluid into the case body.
The toilet seat and toilet lid braking device described. 5. An uneven member is formed on the outer circumference of the case body, and the case body is housed in a mounting member having an inside formed in a shape matching the outer circumference of the case body having the unevenness formed and fixed to a toilet bowl. The toilet seat and toilet lid braking device according to claim 1.