JPH07236594A - Opening and closing device for western style toilet cover and toilet seat - Google Patents

Abstract

PURPOSE:To enable lightly opening a toilet cover and a toilet seat and to prevent the rapid drop of the toilet cover and the toilet seat at the time of closing by providing the cover and the seat with a one-way damper function having a valve. CONSTITUTION:At the time of opening a toilet cover 5, a mounting part 5a of the toilet cover 5 is fitted. A blade part 7b of a rotation drum 7 is rotated counterclockwise in cylinder parts 25a and 25b and a bulb valve 23 is oscillated in a long groove 19 and release the close for a long hole 15. Thus, viscous liquid 26 moves from the cylinder part 25a to the 25b and from the cylinder part 25b to the 25a and the toilet cover 5 is opened lightly. On the other hand, when the toilet cover 5 is closed, the bulb valve 23 is oscillated at the side of the 2nd bulb chip 22 to clog the long hole 15 and the flow of the viscous liquid 26 flows only through a circular groove 18a. Thus, the damper function is operated and the toilet cover 5 does not drop rapidly and it is closed quietly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device suitable for opening / closing a toilet lid, a toilet seat or the like of a Western style toilet bowl.

[0002]

2. Description of the Related Art Conventionally, as this type of opening / closing device, a hinge pin is attached to a bracket fixed on the toilet body in order to hold the toilet lid, toilet seat, etc. in a stable stop state and not to drop suddenly when closed. It is known that a torsion spring is elastically wound around a hinge pin between the above-mentioned bracket and a toilet lid or toilet seat attached via the spring.

[0003]

Since the torsion spring itself has a variation in torque and the torque linearly increases and decreases, it is necessary to correct this variation in torque and the torque of the torsion spring is strong. There was a problem that the closed state of the toilet seat etc. was not enough and became slightly floating, and if the torque was weak, the self-supporting state was not stable in the opened state.

The object of the present invention is to open the toilet lid, toilet seat, etc. of a Western-style toilet bowl by removing or minimizing the damper action and opening it lightly, so that it can be stably held in an independent state.
The purpose of the invention is to provide a switchgear that is designed so that it can be closed softly by the damper action when it is closed, and that the damper mechanism is not destroyed by overload.

[0005]

In order to achieve the above-mentioned object, the present invention relates to a shaft having a structure in which one end is attached to a bracket attached to a toilet body, and a shaft for holding a toilet lid or a toilet seat. The shaft is inserted in the axial direction so that it can be slid slightly in the axial direction and is attached so as to be rotatable, and it is elastically installed between the shaft and the rotary drum while being wound around the shaft. It comprises a compression spring for biasing the rotary drum to slide in one direction, and a damper mechanism having a valve provided between the shaft and the rotary drum.

At this time, the present invention can control the rotation of the rotary drum by providing a cam mechanism utilizing the elastic force of the compression spring.

Further, according to the present invention, a pair of valves having a damper mechanism provided on a shaft, a cylinder portion housed in the valve and provided inside a rotary drum, and a space between the cylinder portion and the valve are filled. The viscous fluid and the blades that are erected from inside the rotating drum and reach the surface of the shaft through the inside of the cylinder part, or attach the cam mechanism to the shaft so that it can slide freely. A slide member, a compression spring elastically installed to urge both the slide member and the rotary drum to slide in one direction, a concave portion or a convex portion provided on one end surface side of the slide member, and the concave portion or the convex portion. It can be configured with a concave portion or a convex portion provided on the rotating drum side so as to be fitted depending on the rotation angle.

Further, according to the present invention, the shaft has a flange portion, the portion protruding from one end of the flange portion is fixed to the bracket side, and the portion protruding from the other end of the flange portion is housed in the rotary drum. Each of the pair of first valve pieces and second valves each having a first shaft portion and a second shaft portion connected and fixed in the axial direction of the first shaft portion, or a valve protruding from the shaft. A first valve piece and a second valve piece having a first cutout provided in the first valve piece, a long hole provided in the second valve piece, and a second cutout that substantially matches the first cutout. And a valve valve housed in a long groove provided in the axial direction between and, and an arcuate groove provided in a portion of the partition wall provided on the rotary drum, which is in contact with the valve side portion. .

[0009]

In the case of claims 1 and 2, the one-way type damper function is created by the damper mechanism having the valve, so that the toilet lid and the toilet seat are lightly opened at the time of opening and abruptly dropped at the time of closing. It is closed quietly and smoothly without causing so-called floating in the closed state. If the switchgear is overloaded due to a sudden opening / closing operation such as a strong pressing with your hand, or for any other reason, the viscous fluid in the rotating drum slides axially against the elastic force of the compression spring, It is possible to increase the volume of the viscous fluid to facilitate the further movement of the viscous fluid.

In the fourth and second aspects, particularly when the toilet seat is opened, the stable holding state of the toilet seat can be maintained by the cam mechanism between the opening angle of 80 ° and 110 °.

In the third aspect, the valve is opened and closed by the viscous fluid pushed by the vanes that rotate together with the rotary drum, and a one-way damper function is created.

According to the present invention, the concave portion or the convex portion provided on the rotary drum and the convex portion or the concave portion of the slide member which is biased to slide in one direction by the compression spring are fitted according to the rotation angle of the rotary drum. And a stable click stop state is created.

According to the present invention, the first shaft portion and the second shaft portion can be members made of different materials.

According to the sixth aspect of the present invention, the viscous fluid pushed by the blades by the rotating direction of the rotary drum causes
The one-way damper function is created by vibrating the viscous fluid passage or closing it by closing or opening the long hole by swinging the valve valve.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of the present invention. In FIGS. 1 and 2, 1 is a toilet body and 2 is a water tank. A pair of brackets 3 are provided on both sides behind the upper part of the toilet body 1,
3 is fixed, and the toilet lid 5 and the toilet seat 6 are openably and closably attached to the toilet body via a pair of opening / closing devices 4a and 4b whose one ends are fixed to the brackets 3 and 3. That is, the attachment portions 5a, 5b, 6a, 6 of the toilet lid 5 and the toilet seat 6
The respective ones 5a and 6b of b are ridges 7a and 8a protrudingly provided on the outer circumferences of rotary drums 7 and 8, which will be described later, as shown in FIG.
Are locked and fixed to the rotary drums 7 and 8 by engaging with the respective lock grooves 5c and 6c, but the other mounting portions 5b and 6a are rotatably supported by the rotary drums 8 and 7. ing. As a result, when the toilet lid 5 or the toilet seat 6 is opened or closed, the rotating drums 7 and 8 of one of the pair of opening / closing devices 4a and 4b rotate and operate.

3 to 9 show the internal structure and function of the opening / closing device 4a for the toilet lid. The opening / closing device 4a on the left side of FIG. 2 will be described below, but the opening / closing device 4b for the toilet lid on the right side is the same except for a part of the structure as described later.

In the drawing, reference numeral 9 is a shaft, which is composed of a first shaft portion 10 and a second shaft portion 12, and the first shaft portion 10 has a deformation hole 3a formed in the bracket 3 and a cross section of the deformation hole 3a. Are fixed to the bracket 3 by inserting the mounting portions 10a having the same shape. The second shaft portion 12 is one end portion of which is fitted into the bearing hole 10d provided in the axial direction of the first shaft portion 10 and fixed by the mounting screw 10c. The first shaft portion 10 further includes a flange portion 10b and an insertion portion 10e, which are sequentially provided in the axial direction subsequent to the mounting portion 10a. The insertion portion 10e inserted into the rotary drum 7 and the inner peripheral wall of the rotary drum 7 are provided. The space between them is sealed by seal members 11 and 13 such as O-rings.

Next, the damper mechanism 16 will be described. The second shaft portion 12 is provided with a pair of valves 17 and 17 standing upright in a substantially central portion of the second shaft portion 12, facing each other.
Reference numerals 7 and 17 denote the inner peripheral wall of the rotary drum 7 and the first shaft portion 10.
Is in contact with the end of the insertion portion 10e on the side thereof and the partition wall 18 projecting inside the rotary drum 7. As shown in FIG. 4, the valves 17 and 17 have a long groove 1 provided in the central axial direction.
First valve pieces 20, 20 partitioned by 9, 19 and second valve pieces 22, 22 and valve valves 23, 23 accommodated in the long grooves 19, 19, and an arcuate groove 18 a provided in the partition wall 18. , 18a, and the first valve piece 2
The first notches 21 and 21 are provided on the outer side of the valves 0 and 20, and the second valve pieces 22 and 22 on the other side are provided with the elongated holes 15 and 15 extending in the axial direction and the valve valves 23 and 23.
The second notch 2 having the same size as the first notches 21, 21
4, 24 are provided. Valve 1 of rotating drum 7
In a pair of cylinder parts 25a, 25b which are partitioned by the valves 17, 17 in a portion accommodating 7, 17, a pair of vane parts 7b, 7b are projectingly provided from an inner peripheral wall, and through the cylinder parts 25a, 25b. It is in contact with the surface of the second shaft portion 12. The cylinder portions 25a and 25b are filled with a viscous fluid 26 such as silicone oil. Both ends of the blade portions 7b, 7b are also in contact with the partition wall 18 and the end surface of the insertion portion 10e of the first shaft portion 10.

The outer periphery of the second shaft portion 12 and the partition wall 18 are sealed with a seal member 27 such as an O-ring, and a spring receiving member 28 is attached to the end portion of the second shaft portion 12. The small diameter portion 12a, which is fixed via a screw 29 and faces the spring receiving member 28,
The slide member 30 is attached in a slidable and non-rotatable state. The spring receiving member 28 and the slide member 30
A compression spring 31 is elastically provided between and between and while being wound around the small diameter portion 12a. Further, a plug 32 is fitted to the end of the rotary drum 7, and the plug 32
A seal member 33 seals between the rotary drum 7 and the rotary drum 7.

Therefore, since the rotary drum 7 of the opening / closing device 4a only rotatably supports the mounting portion 6a of the toilet seat 6 when the toilet seat 6 is opened / closed.
It only functions as a bearing.

However, when the toilet lid 5 is opened and closed, its mounting portion 5a is locked and fixed to the rotary drum 7, so that the rotary drum 7 is attached to the shaft 9 as the toilet lid 5 is opened and closed. It will rotate around. First, during the opening operation, the blade portions 7b, 7b are moved to the cylinder portion 25.
Since the insides of a and 25b rotate counterclockwise from the state shown in FIG. 5, the valve valves 23, 23 move in the long grooves 19, 19 from the first valve piece 22, 22 side to the second valve piece 20, 2, 2.
Since it oscillates to the 0 side and uncloses the long holes 15 and 15, the passage of the viscous fluid 26 is formed from the long holes 15 and 15 through the second notches 24 and 24 and the first notches 21 and 21.
The viscous fluid 26 flows from one cylinder part 25a to the other cylinder part 25b and the other cylinder part 2
It moves smoothly from 5b to 25a and either the damper function does not work or it shows only a very weak damper function.
The toilet lid 5 is opened without encountering much resistance. Toilet lid 5
When closing the valve, from the state shown in FIG.
Since 23 oscillates toward the second valve pieces 22, 22 in the opposite direction to the previous direction and the valve valves 23, 23 close the elongated holes 15, 15, the flow of the viscous fluid 26 passes only through the arcuate grooves 18a, 18a. In that case, the damper function will work,
The toilet lid 5 can be closed gently without dropping suddenly. Since the damper mechanism 16 does not have the ability to bias the toilet lid 5 in the opening direction, the closed toilet lid 5 does not float in the closed state.

Next, when the rotary drum 7 is overloaded due to a sudden opening / closing operation or some other reason, it is pushed by the blade portions 7b, 7b and suddenly from one cylinder portion to the other cylinder portion. Hall-shaped grooves 18a, 18a of the partition wall 18
The viscous fluid 26 moving through the rotary drum 7 slides leftward against the elastic force of the compression spring 31 in the state shown in FIG. 3 to increase the volume of each cylinder portion 25a, 25b. As a result of the pressure of the viscous fluid 26 in each cylinder portion weakening, the damper mechanism 16 can be prevented from being broken. The rotating drum 7 thus moved to the left in the axial direction slides to the right due to the elasticity of the compression spring 31 when the overload is removed, and returns to the original state.

FIG. 15 shows a moment curve when the toilet lid is opened and closed by using the opening / closing device 4a according to the present invention. The toilet lid becomes an independent state from the opening angle of 80 ° and is opened by pushing to 110 °. . When the toilet lid is closed, it falls from 80 ° independence to 40 ° in about 1 second.
It takes a further 2 seconds and relatively slowly falls smoothly to 0 °.

10 to 14 show the internal structure of the opening / closing device 4b for the toilet seat 6 shown in FIG. 2, and most of the structure is the same as the opening / closing device 4a of the toilet lid 5 shown in FIG. However, the difference is that the cam mechanism 40 is provided.
This cam structure 40, as shown in particular in FIG.
A pair of convex portions 41a, 41a provided on one side of the partition wall 41 of the rotary drum 8 with the shaft 42 interposed therebetween, and the shaft 4
2 is a slide member 43 which is non-rotatably and slidably inserted into the shaft.
The recesses 43a, 43a provided in the shaft 42 and the shaft 42 for pressing the slide member 43 toward the partition wall 41.
A compression spring 45 elastically mounted between a spring receiving member 44 fixed to the end of the shaft 42 while being wound around the shaft 42, and an opening angle of 80 ° to 110 that requires a stable self-supporting state of the toilet seat 6. At °, the convex portions 41a, 4
1a is recessed 43a, 43a of the slide member 43 attached to the shaft 42 so as to be non-rotatable and slidable
It falls inside and keeps a stable self-sustaining state. Other structures and functions are the opening / closing device 4a for the toilet lid 5 described above.
It is possible to prevent the rotating drum 8 from sliding slightly to the right in FIG. 10 and damaging the damper mechanism 46 when an overload is applied to the rotating drum 8.

FIG. 16 shows a moment curve when the toilet seat 6 is opened / closed using the opening / closing device 4b according to the present invention. The toilet seat 6 becomes independent from an angle of 80 ° and is opened up to 110 °, but the cam mechanism 40 is used. As a result, a rotation restraining force exceeding the torque is obtained, so that the self-supporting state becomes extremely stable. When the toilet seat 6 is closed, it falls from the self-supporting state of 80 ° to 40 ° in a little quicker in about 1 second, and further slowly falls to 0 ° slowly in 2 seconds.

[0026]

Since the present invention is constructed as described above,
The following effects can be achieved.

According to the first aspect of the invention, the damper mechanism having the valve causes the damper function to move only when the toilet lid is closed, so that the opening operation is easy and the rotating drum is overloaded by the abrupt operation. When it is applied, the rotary drum slides in the axial direction to increase the volume of the cylinder part and create an escape path for oil, so it is possible to effectively prevent the damper mechanism from being destroyed by overload. It is a thing.

According to the second aspect of the invention, in addition to the effect of the above-mentioned first aspect, the same compression spring can be used to perform the function of stably stopping and holding the toilet seat at the self-standing angle. Is.

According to the third aspect of the invention, the valve can effectively function with a simple structure.

According to the fourth aspect of the invention, the toilet seat can be maintained in a stable and self-supporting state with a simple structure, and the projection and the recess can be fitted and removed smoothly without any difficulty.

According to the fifth aspect, the first shaft portion and the second shaft portion can be made of materials suitable for their respective purposes.

According to the sixth aspect of the invention, the valve can be made to function with a simple structure, and the opening / closing operation of the toilet lid or the toilet seat can be made more reasonable and smooth.

[Brief description of drawings]

FIG. 1 is a plan view of a Western style toilet according to the present invention.

FIG. 2 is a cross-sectional view for explaining a mounting state of an opening / closing device such as a toilet lid and a toilet seat of a Western-style toilet according to the present invention.

FIG. 3 is a transverse cross-sectional view showing a mounting state of the toilet lid opening / closing device.

FIG. 4 is a cross-sectional view of the opening / closing device in a state in which the toilet lid is fully opened in order to explain the damper mechanism, as seen at a cross-sectional position along the line AA in FIG. 3.

5 is a cross-sectional view of the opening / closing device in a state in which the toilet lid is closed to explain the damper mechanism, as seen at a cross-sectional position along the line AA in FIG. 3. FIG.

FIG. 6 is a transverse sectional view of a first shaft portion.

7 is a cross-sectional view taken along the line BB of FIG.

FIG. 8 is a front view of a second shaft portion.

9 is a cross-sectional view taken along the line CC of FIG.

FIG. 10 is a transverse cross-sectional view showing a mounted state of the toilet seat opening / closing device.

FIG. 11 is a cross-sectional view of the opening / closing device in a fully opened state of the toilet seat, taken along line D-D in FIG. 10, for explaining the damper mechanism.

FIG. 12 is a cross-sectional view of the opening / closing device in a fully opened state of the toilet seat, taken along line EE in FIG. 10 for explaining the cam function.

FIG. 13 is a perspective view of a slide member that constitutes a cam mechanism.

12 is a plan view of the slide member shown in FIG.

FIG. 15 is a moment curve diagram when the toilet lid is closed.

FIG. 16 is a moment curve diagram when the toilet seat is closed.

[Explanation of symbols]

 1 Toilet body 3 Bracket 4a Opening / closing device 4b Opening / closing device 5 Toilet lid 6 Toilet seat 7 Rotating drum 8 Rotating drum 10 First shaft portion 10a Mounting portion 10b Flange portion 10c Mounting screw 10d Bearing hole 10e Inserting portion 12 Second shaft portion 15 Long hole 16 damper mechanism 17 valve 18 partition wall 18a arcuate groove 19 long groove 20 first valve piece 21 first notch 22 second valve piece 23 valve valve 24 second notch 25a cylinder portion 25b cylinder portion 26 viscous fluid 28, 44 spring receiving member 30 , 43 Slide member 31, 45 Compression spring 40 Cam mechanism 41 Partition wall 41a Projection 42 Shaft 43a Recess

[Procedure amendment]

[Submission date] July 4, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a plan view of a Western style toilet according to the present invention.

FIG. 2 is a cross-sectional view for explaining a mounting state of an opening / closing device such as a toilet lid and a toilet seat of a Western-style toilet according to the present invention.

FIG. 3 is a transverse cross-sectional view showing a mounting state of the toilet lid opening / closing device.

FIG. 4 is a cross-sectional view of the opening / closing device in a state in which the toilet lid is fully opened in order to explain the damper mechanism, as seen at a cross-sectional position along the line AA in FIG. 3.

5 is a cross-sectional view of the opening / closing device in a state in which the toilet lid is closed to explain the damper mechanism, as seen at a cross-sectional position along the line AA in FIG. 3. FIG.

FIG. 6 is a transverse sectional view of a first shaft portion.

7 is a cross-sectional view taken along the line BB of FIG.

FIG. 8 is a front view of a second shaft portion.

9 is a cross-sectional view taken along the line CC of FIG.

FIG. 10 is a transverse cross-sectional view showing a mounted state of the toilet seat opening / closing device.

FIG. 11 is a cross-sectional view of the opening / closing device in a fully opened state of the toilet seat, taken along line D-D in FIG. 10, for explaining the damper mechanism.

FIG. 12 is a cross-sectional view of the opening / closing device in a fully opened state of the toilet seat, taken along line EE in FIG. 10 for explaining the cam function.

FIG. 13 is a perspective view of a slide member that constitutes a cam mechanism.

14 is a plan view of the slide member shown in FIG.

FIG. 15 is a moment curve diagram when the toilet lid is closed.

FIG. 16 is a moment curve diagram when the toilet seat is closed.

[Explanation of Codes] 1 Toilet main body 3 Bracket 4a Opening / closing device 4b Opening / closing device 5 Toilet lid 6 Toilet seat 7 Rotating drum 8 Rotating drum 10 First shaft portion 10a Mounting portion 10b Flange portion 10c Mounting screw 10d Bearing hole 10e Inserting portion 12 Second Shaft part 15 Long hole 16 Damper mechanism 17 Valve 18 Partition wall 18a Arc groove 19 Long groove 20 First valve piece 21 First notch 22 Second valve piece 23 Valve valve 24 Second notch 25a Cylinder part 25b Cylinder part 26 Viscous fluid 28, 44 spring receiving member 30, 43 slide member 31, 45 compression spring 40 cam mechanism 41 partition wall 41a protrusion 42 shaft 43a recess

Claims (6)

[Claims] 1. A shaft having a structure in which one end is attached to a bracket mounted on a toilet body, and the shaft is inserted through the shaft in the axial direction to hold a toilet lid or a toilet seat, and is slightly slid in the axial direction. A rotatable drum that is rotatably and rotatably mounted, and a compression spring that energizes the rotating drum that is elastically wound between the shaft and the rotating drum in one direction while being wound around the shaft. And a damper mechanism having a valve provided between the shaft and the rotating drum, an opening / closing device for a toilet lid, a toilet seat, or the like of a Western-style toilet bowl. 2. A shaft having a structure in which one end is attached to a bracket mounted on a toilet body, and the shaft is inserted through the shaft in the axial direction to hold a toilet lid or a toilet seat, and is slightly slid in the axial direction. A rotatable drum that is rotatably and rotatably mounted, and a compression spring that energizes the rotating drum that is elastically wound between the shaft and the rotating drum in one direction while being wound around the shaft. And a cam mechanism that controls the rotation of the rotary drum by using the elastic force of the compression spring, and a damper mechanism that has a valve provided between the shaft and the rotary drum. Opening and closing devices for toilet lids, toilet seats, etc. 3. A damper mechanism comprising: a pair of valves provided on a shaft; a cylinder portion provided inside the rotary drum with the valves accommodated therein; and a space between the cylinder portion and the valve. 3. The toilet lid of a western-style toilet according to claim 1 or 2, wherein the viscous fluid is formed of a viscous fluid and a blade portion protruding from the inside of the rotating drum and contacting the surface of the shaft through the inside of the cylinder portion. Switchgear for toilets and toilet seats. 4. A slide member in which a cam mechanism is mounted on a shaft so as to be slidable from itself, and a compression elastically mounted so as to bias both the slide member and the rotary drum in one direction. A spring, a concave portion or a convex portion provided on one end surface side of the slide member, and a concave portion or a convex portion provided on the rotary drum side so as to be fitted to the concave portion or the convex portion at a rotation angle. And
An opening / closing device for a toilet lid, a toilet seat, or the like of the western-style toilet according to claim 2 or 3. 5. A shaft comprising a flange portion, a portion protruding from one end portion of the flange portion being fixed to the bracket side, and a portion protruding from the other end portion of the flange portion being housed in a rotary drum. 3. The Western-style model according to claim 1 or 2, characterized in that it comprises one shaft portion and a second shaft portion axially connected and fixed to a portion of the first shaft portion housed in the rotary drum. A device for opening and closing toilet lids and toilet seats. 6. A pair of a first valve piece and a second valve piece projecting a valve from a shaft, a first notch provided in the first valve piece, and a second valve piece provided in the second valve piece. A long hole, and a valve valve having a second notch that substantially coincides with the first notch and housed in a long groove axially provided between the first valve piece and the second valve piece, 6. A toilet lid, a toilet seat, etc. of a Western-style toilet according to claim 1, wherein the partition wall is provided with a partition wall provided with the rotary drum, and an arc-shaped groove provided in a portion in contact with a side portion of the valve. Switchgear.