JP2000000186A - Hinge for opening seat and cover of western style toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge for opening a seat or cover of toilet bowl wherein the feeling of opening/closure of the seat or lid of toilet bowl can be finely adjusted by adjusting the torque of a rotation shaft. SOLUTION: In a torque adjusting means comprising a rotation shaft 10 rotatably provided in a hinge case 12, a fixed cam member 20 fixed to a partition wall provided in the hinge case, a rotation, sliding cam member 21 which is provided so as to be slidable on and rotatable with the rotation shaft 10, and an elastic means 22 which urges the member 21 toward the member 20, the torque adjusting means is comprised of an adjusting screw 17 which is inserted into a through hole provided in the axial direction of the rotation shaft so that it can be rotated by means of a screwdriver from the side of a deformation mount axis part 10b and a spring holder 18 which is threadedly mounted to a part protruding from the rotation shaft of the adjusting screw in the hinge case so as to be brought into contact with an end of the elastic means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing hinge which is particularly suitable for opening / closing a toilet seat or a lid of a Western-style toilet.

[0002]

2. Description of the Related Art Conventionally, as a hinge for opening and closing a toilet seat and a toilet lid of a Western-style toilet bowl, a hinge in which a cam mechanism having a compression spring acts on a rotary shaft supporting the toilet seat and the toilet lid, and a specific rotation of the rotary shaft. And those using a torsion spring acting in the direction of canceling the rotational torque in the direction, and those in which a fluid damper acts on the rotating shaft.

[0003] Conventionally known ones in which only a cam mechanism having a compression spring is applied to a rotating shaft has the advantage that the generated torque can be easily adjusted to the rotating moment of a toilet seat or a toilet lid. If this is the case, there is a disadvantage that the device must be made large.

[0004] Further, a conventional type in which only a torsion spring is applied to a rotating shaft has an advantage that a large rotating torque can be generated even with a small size. However, since a rotating torque that increases or decreases linearly is created, a sine curve is formed. There are drawbacks in that it is difficult to match the rotational moment of the toilet seat and the toilet lid to be drawn, and it is difficult to adjust the details to the rotational moment of the toilet seat and the toilet lid, and to add an accent to the operation.

[0005] In addition, a known type using only a fluid damper alone is used only for fine adjustment and accent when opening and closing a toilet seat and a toilet lid, for example, stopping and holding the toilet seat at an intermediate angle, braking from a predetermined opening angle. There is a drawback that it is difficult to apply an action or the like.

[0006] In order to control the rotational moment of the opening / closing member such as a toilet seat or a toilet lid, and to perform a soft closing operation, the present inventors have designed a rotating shaft rotatably provided in a hinge case. And a fixed cam member fixed in the rotating shaft while inserting the rotating shaft into the center, and slidable while rotating the rotating shaft through the center and provided to rotate together with the rotating shaft. A rotating sliding cam member and elastic means for pressing the rotating sliding cam member in the direction of the fixed cam member, wherein the rotating sliding cam member is fitted to the rotating shaft in order to control the rotation of the rotating shaft. A damper ring interposed between the hinge case and a damper means made of viscous oil applied between an outer periphery of the damper ring and the inside of the hinge case; Proposed closing hinge of the toilet seat and toilet lid of toilet made by acting on the rotation shaft.

[0007]

In the above-mentioned proposal, the rotational torque of the rotary shaft can be adjusted by adjusting the pressure at which the damper ring of the damper means is pressed against the inner periphery of the hinge case. Although it was configured as described above, there was a drawback that it could not be applied to those without damper ring.

An object of the present invention is to apply not only to a device using a damper ring but also to a device not using a damper ring, and to adjust the rotation torque of a rotating shaft so that a subtle opening and closing of a toilet seat and a toilet lid can be achieved. An object of the present invention is to provide a hinge for opening and closing a toilet seat and a toilet lid of a Western-style toilet, which can adjust the feeling.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a rotating shaft provided with a deformable mounting shaft protruding from a hinge case and rotatably provided in the hinge case. A fixed cam member fixed to a partition wall provided in the hinge case while being inserted into the center portion, and a rotation provided so as to be slidable while being inserted into the center portion of the rotary shaft and to rotate together with the rotary shaft. A torque adjusting device comprising a sliding cam member and elastic means for pressing the rotating sliding cam member in the direction of the fixed cam member, wherein the elastic force of the elastic means is adjusted to adjust the rotational torque of the rotary shaft. Means, and the torque adjusting means is inserted into a through hole provided in the axial direction of the rotary shaft, and can be rotated with a screwdriver from the side of the deformed mounting shaft portion. And a spring holder, which is screwed to a portion of the adjusting screw protruding from the rotary shaft in the hinge case and is in contact with one end of the elastic means. .

According to the present invention, there is also provided a rotary shaft rotatably provided in the hinge case by projecting a deformable mounting shaft portion from the hinge case, and provided in the hinge case while inserting the rotary shaft through the center portion. A fixed cam member fixed to the partition wall, a rotating sliding cam member provided so as to be slidable and rotate with the rotating shaft while inserting the rotating shaft through the center, and the rotating sliding cam member. Elastic means for pressing in the direction of the fixed cam member, wherein torque adjusting means for adjusting the elasticity of the elastic means to adjust the rotational torque of the rotary shaft is provided. An adjusting screw, which is inserted into a through hole provided in the axial direction of the hinge case so as to be rotatable from the side of the deformable mounting shaft, and adjusts in the hinge case. A spring holder screwed to a portion of the screw protruding from the rotary shaft and abutting against one end of the elastic means, and the adjusting screw attached to a portion of the adjusting screw protruding from the deformable mounting shaft is rotated. It is characterized in that it is composed of knobs.

In this case, the present invention is configured such that a damper ring is fitted to an outer peripheral portion of the rotary shaft inside the hinge case, and the damper ring contacts the inner wall of the hinge case in the presence of viscous oil. Alternatively, the spring holder is configured to rotate together with the rotary shaft, and a damper ring is fitted to an outer peripheral portion of the spring holder so that the damper ring contacts an inner wall of the hinge case in the presence of viscous oil. can do.

According to the present invention, a cap can be attached to one end of the hinge case.

[0013]

1 to 13 show an embodiment of the present invention, wherein 1 is a toilet body of a Western-style toilet, 2 is a holder, and 3 and 4 are detachably mounted inside the holder 2. This is a hinge for opening and closing the toilet seat 5 and the toilet lid 6.

The holder 2 is provided with an opening 7b at its lower side and through holes 7c at both ends, and a case body 7 of a synthetic resin molded product having a substantially kamaboko shape in appearance. A pair of mounting portions 8, 8 protruding from one outer side,
Locking pieces 9 are provided on one side inside the case body 7 so as to be close to the insertion holes 7c at both ends.

A pair of opening and closing hinges 3 and 4 are inserted into the case body 7 of the holder 2 from the lower opening 7b.
The rotating shafts 10, 11 are made to protrude outside through the insertion holes 7c, 7c provided at both ends, and the locking pieces 9, 9
Legs 12a, 12b, 13a, 13b projecting below hinge cases 12, 13 of these opening / closing hinges 3, 4
Of these, each leg 12a, 13a is fixed by locking. At this time, the insertion holes 7c at both ends,
The inner diameter of 7c is the same as or smaller than the outer diameter of the hinge cases 12, 13 of the opening / closing hinges 3, 4 housed inside, and both side plates 7d, 7d are formed in the case body 7. Since it is provided, the hinges 3 and 4 for opening and closing housed in the case body 7 do not fall out of the insertion holes 7c and 7c at both ends in the axial direction.

As for the pair of opening and closing hinges 3 and 4 housed in the case body 7 of the holder 2, the one on the left side in FIG. 5 is for the toilet seat 5 and the one on the right side is for the toilet lid 6. . The internal structure is basically different from that of the toilet seat 5 and the toilet lid 6 only in that the elasticity of the elastic means composed of the compression spring and the shape of the cam portion of the cam member, which will be described later, are different, mainly due to the difference in weight. Is the same.

Therefore, the structure of the hinge 3 for opening and closing the toilet seat will be described below.

At the lower side of the cylindrical hinge cases 12, 13, a pair of legs 12 is provided at a predetermined interval as described above.
a, 12b, 13a, and 13b are protrudingly provided, and one end 12a, 13a of each of the pair of legs 12a, 12b, 13a, 13b is a case body 7 of the holder 2.
When the opening / closing hinges 3 and 4 are housed therein, they engage with the locking pieces 9 and 9 provided therein to prevent the opening / closing hinges 3 and 4 from moving in the axial direction in the case body 7. Is what you do. The pair of legs 12a, 12b, 13
The lower end surfaces of the opening and closing hinges 3 and
4 is configured to be flush with the lower end face of the case body 7 when the case body 4 is housed.

A partition 14 is provided inside the hinge case 12 of the opening / closing hinge 3 near the left entrance.
The rotating shaft 10 is inserted in the inner axial direction of the hinge case 12 and penetrates through the bearing hole 14a provided in the housing 4 so as to be rotatable. The rotary shaft 10 is provided with a stepped through hole 16 in the longitudinal direction of the shaft core portion.
6, an adjusting screw 17 is attached, and a head 17 a of the adjusting screw 17 is locked to a large diameter portion 16 a of the through hole 16. The free end side of the adjusting screw 17 in the case body 7 protrudes from the end of the rotating shaft 10, and is engaged with a nut 17 b screwed to the protruding portion, and a spring holder 18 is attached. . Incidentally, 17
c is a washer. The spring holder 18 has a flange portion 18a at one end portion which is in contact with the inner periphery of the hinge case 12, and a deformation engagement hole 1 provided in the axial direction of the shaft core portion on the other side.
8b engages with the deformed small diameter portion 10a of the rotating shaft 10 and can rotate with the rotating shaft, but can slide in the hinge case 12 in the axial direction. 18c is a small hole through which the adjusting screw 17 is inserted. A hinge case 12 is provided on the side of the mounting shaft 10b where the outside of the rotating shaft 10 is deformed.
A large diameter portion 10c having an outer diameter substantially the same as the inner diameter of the large diameter portion is provided, and a peripheral groove 10d in which a rubber damper ring 19 is fitted is provided on the outside of the large diameter portion 10c. The damper ring 19 has a plurality of circumferential grooves 19 a on the outer circumference, and a viscous oil (not shown) is filled between the outer circumference and the inner circumference of the hinge case 12.

In particular, as shown in FIGS. 4 and 5, in the hinge case 12, a plurality of projections 20a provided at one end thereof are inserted and locked into a plurality of locking holes 14b provided in the partition wall 14. Thus, a fixed cam member 20 is provided. The fixed small-diameter portion 1 of the rotary shaft 10 is inserted into a circular insertion hole 20 b having a circular cross section provided in the axial direction of the shaft portion of the fixed cam member 20.
0a is rotatably inserted. This fixed cam member 2
A deformed insertion hole 21a provided in the axial direction of the center portion thereof in opposition to the cam portion 20e including the convex portion 20c and the concave portion 20d.
Deformed small diameter portion 1 of rotary shaft 10 of rotary shaft 10
The rotary sliding cam member 21 is attached so that the rotary shaft 10a can be inserted and engaged with the rotary shaft 10 to rotate with the rotary shaft 10, but can slide in the axial direction of the rotary shaft 10. The portion of the rotary sliding cam member 21 facing the cam portion 20e of the fixed cam member 20 is also provided with a convex portion 21b and a concave portion 2e.
A cam portion 21d made of 1c is provided. The rotary sliding cam member 21 and the flange 18 of the spring holder 18
a, elastic means 22 composed of, for example, a compression spring is elastically provided around the deformed small diameter portion 10a and the outer periphery of the spring holder 18 so that the rotary sliding cam member 21 is located on the side of the fixed cam member 20. Is urged to slide.

As shown in FIGS. 5 and 6, the rotating shaft 10 on the side of the opening / closing hinge 3 for the toilet seat,
The mounting portion 5a of the rotary shaft 10
When the toilet seat 5 is opened and closed by being inserted and engaged with the deformed mounting shaft portion 10b, the rotary shaft 10 is mounted so as to rotate together. This rotating shaft 10
The mounting shaft 6b of the toilet lid 6 is further inserted through the mounting shaft 10b into the circular mounting hole 6c of the mounting shaft 10b. It is supported so as not to rotate with the shaft 10.

On the other hand, a deformed mounting hole 6b provided in the mounting portion 6a of the toilet lid 6 is inserted and engaged with the deformed mounting portion 11b of the rotating shaft 11 of the opening / closing hinge 4 for the right toilet lid 6. The mounting portion 5a of the toilet seat 5 bears the circular mounting hole 5c. Therefore, this left-hand opening / closing hinge 4
The rotary shaft 11 rotates with the opening and closing operation of the toilet lid 6 but does not rotate when the toilet seat 5 is opened and closed.

Next, as in the present embodiment, the mounting portion 5
If the a, 5a, 6a, 6a is integral with the toilet seat 5 or the toilet lid 6, the deformed mounting holes 5b, 6b and the circular mounting holes 5c, 6c of the mounting portions 5a, 5a, 6a, 6a are previously set in the holder. In the axial direction of the insertion holes 7c, 7c provided at both ends of the case body 7, the opening / closing hinges 3, 4 are opened first with one of the opening / closing hinges 3, 4. 7b is inserted into the case body 7. The hinges 3 and 4 for opening and closing are inserted into the case body 7 through the opening 7 b of the case body 7.
In the case of the opening / closing hinge 3, the opening / closing hinge 3 is inserted through the opening 7 b on the lower side of the case body 7 of the holder 2, and is displaced in the axial direction as it is so that the rotation shaft 10 is inserted through the end of the case body 7. The rotary shaft 10 is projected from the hole 7c so that the leg 12a is locked to the locking piece 9, and the rotary shaft 10 is connected to one of the mounting portions 5a, 6a of the toilet seat 5 and the toilet lid 6, respectively.
b and the circular mounting hole 6c. Next, the other opening / closing hinge 4 is similarly inserted from the lower opening of the case body 7, and is displaced in the axial direction as it is so that the rotating shaft 11 projects from the insertion hole 7 c at the other end of the case body 2. Then, while the leg 13a is locked to the locking piece 9, the rotating shaft 11 is connected to the other mounting portion 5a of the toilet seat 5 or the toilet lid 6,
6a is inserted into the circular mounting hole 5c and the modified mounting hole 6b.

Then, the holder 2 is placed at the mounting position of the toilet body 1, and the mounting portions 8, 8 are fixed to the toilet body 1 with mounting bolts 23, 23.

When the toilet seat 5 is opened and closed after being attached in this manner, the rotary shaft 10 rotates together and the toilet seat 5 is opened.
In the closed position, the cam portion 20e of the fixed cam member 20
And the cam portion 21d of the rotary sliding cam member 21
Is pressed by the elastic force of the elastic means 22, but when the toilet seat 5 is opened, the rotating sliding cam member 21 rotates together with the rotating shaft 10 and the convex portion 21b moves to the concave portion 20d of the fixed cam member 20. Perform a depressed action. The maximum opening angle (110 °) is when the convex portion 21b falls completely into the concave portion 20d. Next, when the operation of closing the opened toilet seat 5 is performed, the convex portion 21b of the cam portion 21d attempts to shift from the concave portion 20d of the cam portion 20e to the convex portion 20c side against the elasticity of the elastic means 22. Is closed quietly, without sudden closing. At that time, the damper ring 19 has a function of buffering the rotation of the rotating shaft 10.

When the peripheral groove 19a is provided on the outer periphery of the damper ring 19, the viscous oil spreads all over the outer periphery of the damper ring 19 and the oil does not run out.

In order to adjust the rotational torque of the rotating shaft 10, without removing the opening / closing hinge 3 from the holder 2, use a screwdriver to adjust the adjusting screw 17 from one end of the mounting shaft 10 b of the rotating shaft 10. , The spring holder 18 moves left and right,
The elasticity of the elastic means 22 can be adjusted by increasing or decreasing the effective length of the elastic means 22, so that the rotational torque of the rotary shaft 10 can be arbitrarily adjusted even after the opening / closing hinge 3 is assembled. This adjustment work,
The same is true for the opening / closing hinge 4 on the right side.

FIGS. 14 to 23 show another embodiment of the opening / closing hinge. According to the drawings, a pair of opening / closing hinges 32 and 33 according to this embodiment are the same as those of the previous embodiment. In addition, it is not attached to a dedicated holder, but is attached to the toilet body 31 by itself. Therefore, the mounting portions 36, 37 are protruded from the hinge cases 40, 41 of the opening / closing hinges 32, 33. The opening / closing hinges 32 and 33 are paired on the left and right, the left one 32 is for a toilet seat, and the right one 33 is for a toilet lid. The internal structure is the same except that the cam shape of the cam member and the elasticity of the elastic means are different, and the basic structure is symmetrical and the same. Therefore, the configuration of the opening / closing hinge 33 for the right toilet lid will be described below. I do.

In the hinge case 40 of the opening / closing hinge 33, a partition 43 is provided near the right entrance, and the rotary shaft 44 passes through a bearing hole 43a provided in the partition 43.
Are rotatably mounted through the hinge case 40 in the axial direction. The rotating shaft 44 is provided with a through hole 44d in the longitudinal direction of the shaft core portion.
Is passed in the axial direction, and an adjustment screw 47 is attached. Both ends of the adjusting screw 47 protrude from both ends of the rotary shaft 44, and the head 47 a penetrates through the spring holder 46 and is locked by the spring holder 46. The rotating shaft 44 includes a large-diameter portion 44c having an outer diameter substantially matching the inner diameter of the hinge case 40 at one end of the hinge case 40, and a deformed mounting shaft portion 44b protruding outside from the hinge case 40. And a peripheral groove 44e in which an O-ring 45 is fitted is provided on the outer periphery of the large diameter portion 44c. The other end of the adjusting screw 47 projects from the mounting shaft 44b of the rotary shaft 44 to form a knob mounting portion 47c, and a nut 47b is screwed. A knob 39 is attached to the knob mounting portion 47f. Reference numeral 42 denotes a knob for the left opening / closing hinge 32. The spring holder 46 has a flange 46a at one end which is in contact with the inner periphery of the hinge case 40, and a deformation engagement hole 46c provided at the other side.
4, is rotatable with the rotating shaft 44, and is movable in the hinge case 40 in the axial direction. A peripheral groove 46d is provided on the outer periphery of the flange 46a of the spring holder 46. A rubber damper ring 52 is fitted into the peripheral groove 46d, and a peripheral groove provided on the outer periphery of the damper ring 52. A viscous oil (not shown) is applied to 52a. Reference numeral 46b denotes a small circular hole through which the adjusting screw 47 is inserted.
6c and the shaft core are commonly connected.

A fixed cam member 48 is provided in the hinge case 40 by inserting and locking a plurality of projections 48a provided at one end thereof into a plurality of locking holes 43b provided in the partition wall 43. The rotary shaft 44 is inserted into a circular insertion hole 48 b having a circular cross section provided in the longitudinal direction of the shaft core portion of the fixed cam member 48.
Is rotatably inserted. The fixed small diameter member 44a of the rotating shaft 44 is inserted into a deformation insertion hole 49a provided in the axial direction of the center of the fixed cam member 48 so as to face a cam portion 48e formed of a projection 48c and a recess 48d.
Is inserted and engaged with the rotary shaft 44, and the rotary slide cam member 49 is provided so as to be slidable in the axial direction of the rotary shaft 44. The cam portion 48e of the fixed cam member 48 of the rotary sliding cam member 49
Is provided with a cam portion 49d including a convex portion 49b and a concave portion 49c. Between the rotary sliding cam member 49 and the flange 46a of the spring holder 46, there is a deformed small diameter portion 44a and the spring holder 46.
An elastic means 50 composed of a compression spring is elastically provided around the outer periphery of the portion other than the flange portion 46a, and the rotary sliding cam member 49 is slidably biased toward the fixed cam member 48 side.

As shown in FIGS. 13, 14 and 16, the rotating shaft 44 on the side of the opening / closing hinge 33 for the right toilet seat has a modified mounting hole (not shown) for the mounting portion 34 a of the toilet lid 34. Deformed mounting shaft 44b of rotary shaft 44
The rotating shaft 44 is attached so that when the toilet lid 34 is opened and closed, the rotary shaft 44 rotates together. A mounting portion 35a of the toilet seat 35 is further inserted into the mounting shaft portion 44b of the rotary shaft 44 so that the mounting shaft portion 44b is inserted into a circular mounting hole (not shown).
When the shutter 5 is opened and closed, it rotates about the rotation shaft 44 and is supported so as not to rotate with the rotation shaft 44.

On the other hand, the opening / closing hinge 3 for the left toilet seat 35
A modified mounting hole (not shown) provided in the mounting portion 35a of the toilet seat 35 is inserted into and engaged with the deformed mounting shaft portion of the rotary shaft 2 (not shown), and the mounting portion 34a of the toilet lid 34 is inserted.
Has a circular mounting hole (not shown). Therefore, the rotation shaft of the left opening / closing hinge 32 rotates with the opening / closing operation of the toilet seat 35, but does not rotate at the time of opening / closing the toilet lid 34.

When the toilet lid 34 is opened and closed, the rotating shaft 4
4 rotate together, and at the closed position of the toilet lid 34, the convex portion 48c of the cam portion 48e of the fixed cam member 48 and the convex portion 49b of the cam portion 49d of the rotary sliding cam member 49 Although it is in pressure contact with elasticity, when the toilet lid 34 is opened,
While the rotary sliding cam member 49 rotates together with the rotary shaft 44, the convex portion 49b becomes the concave portion 48d of the fixed cam member 48.
Perform the operation of falling into The maximum opening angle (110 °) is when the projection 49b is completely dropped into the recess 48d.
It is.

Next, when the operation of closing the opened toilet lid 34 is performed, the convex portion 49b of the cam portion 49d is pushed from the concave portion 48d of the cam portion 48e against the pressing force by the elastic means 50.
The toilet lid 34 is closed quietly without abruptly closing because it is about to move to the side. At this time, the damper ring 52 has a function of buffering the rotation of the rotary shaft 44 and thus the closing operation of the toilet lid 34.

When the peripheral groove 52a is provided on the outer periphery of the damper ring 52, the viscous oil spreads all over the outer periphery of the damper ring 52 and the oil does not run out.

When adjusting the rotating torque of the rotating shaft 44, the knob 39 is turned in either direction.
The spring holder 46 moves left and right, and the elastic means 50
Since the effective length of the opening and closing can be adjusted, the pressing force of the rotating sliding cam member 49 against the fixed cam member 48 changes, and the rotating torque of the rotating shaft 44 is reduced by the opening / closing hinge 33 of the toilet bowl. It can be adjusted arbitrarily even after attachment to the main body 31. In the case of the opening / closing hinge 32 on the left side, the rotational torque of the rotary shaft can be adjusted in the same manner by rotating the knob 42 in either direction.

[0037]

According to the first aspect of the present invention, a deformed mounting shaft portion for mounting a mounting portion integrally formed from a toilet seat or a toilet lid protrudes in the axial direction of the rotating shaft of the opening / closing hinge. An adjustment screw for adjusting the rotational torque of the rotary shaft is rotatably penetrated from the end of the mounting shaft in the axial direction of the rotary shaft, and the head of the adjustment screw is rotated from the end of the deformed mounting shaft. Thus, since the elasticity of the elastic means with respect to the rotary sliding cam member pressed against the fixed cam member can be adjusted, after the toilet seat or the toilet lid is attached to the toilet body, the rotation shaft of each opening / closing hinge is adjusted. The rotational torque of the motor can be adjusted. Since the head of the adjusting screw is not exposed to the outside and does not rotate unless a screwdriver is used, there is an advantage that there is no risk of tampering.

According to a second aspect of the present invention, a deformed mounting shaft for mounting a mounting unit integrally formed from a toilet seat or a toilet lid is provided in the axial direction of the rotating shaft of the opening / closing hinge to project from the mounting shaft. An adjusting screw for adjusting the rotating torque of the rotating shaft is rotatably inserted from the end of the rotating shaft in the axial direction of the rotating shaft, and a nut screwed to the adjusting screw is rotated by rotating a knob to rotate the adjusting means. Since the elasticity can be adjusted, the rotational torque of the rotating shaft of each opening / closing hinge can be adjusted after the toilet seat or the toilet lid is attached to the toilet body.

According to the third and fourth aspects, the rotation of the rotary shaft can be buffered by the damper ring, and the rotation torque of the rotary shaft can be adjusted more finely.

According to the fifth aspect, the cap can effectively prevent dust and moisture from entering the inside of the hinge case from the outside.

[Brief description of the drawings]

FIG. 1 is a plan view of a Western style toilet in which a hinge for opening and closing a toilet seat and a toilet lid according to the present invention is implemented.

FIG. 2 is a partially omitted side view of FIG. 1;

FIG. 3 is an exploded perspective view for explaining how to attach a hinge for opening and closing a toilet seat and a toilet lid according to the present invention to a holder.

FIG. 4 is a partially exploded front view of a hinge for opening and closing a toilet seat and a toilet lid according to the present invention.

FIG. 5 is a partially sectional front view of a hinge for opening and closing a toilet seat and a toilet lid according to the present invention.

FIG. 6 is a partial sectional front view for explaining the operation of the hinge for opening and closing the toilet seat and the toilet lid according to the present invention.

FIG. 7 is a right side view of a rotation shaft of the opening / closing hinge shown in FIGS. 1 to 6;

FIG. 8 is a left side view of the rotary sliding cam member.

FIG. 9 is an enlarged front view of a damper ring.

FIG. 10 is a left side view of a rotation shaft of the opening / closing hinge shown in FIGS. 1 to 6;

FIG. 11 is a development view of a cam portion of the fixed cam member.

FIG. 12 is a development of a cam portion of the rotary sliding cam member.

FIG. 13 is a left side view of the spring holder.

FIG. 14 is a front view showing another embodiment of the hinge for opening and closing a toilet seat and a toilet lid according to the present invention.

15 is a partial cross-sectional plan view of the right and left hinge of the opening / closing hinge shown in FIG. 14;

16 is a right side view corresponding to FIG. 15 of a right and left hinge of the opening / closing hinge shown in FIG. 14;

FIG. 17 is a partial cross-sectional plan view for explaining the operation of the opening / closing hinge shown in FIG.

18 is a right side view of the opening / closing hinge corresponding to FIG. 17;

19 is a right side view of the rotary sliding cam member of the opening / closing hinge shown in FIG.

20 is a right side view of a spring holder of the opening / closing hinge shown in FIG.

FIG. 21 is a left side view of the spring holder shown in FIG.

FIG. 22 is a plan view of the rotating shaft shown in FIGS. 15 and 17;

FIG. 23 is a right side view of the rotating shaft shown in FIG. 22.

[Explanation of symbols]

 1,31 toilet body 3,32 hinge for opening / closing (left) 4,33 hinge for opening / closing (right) 5,35 toilet seat 5a, 35a mounting part 6,34 toilet lid 6a, 34a mounting part 10 rotating shaft (left) 10a deformation Small diameter portion 10b Mounting shaft portion 10c Large diameter portion 10b Circumferential groove 11,44 Rotating shaft (right) 12,41 Hinge case (left) 13,40 Hinge case (right) 17,47 Adjusting screw 17a, 47a Head 18,46 Spring holder 19,52 Damper ring 20,48 Fixed cam member 21,49 Rotating sliding cam member 22,50 Elastic means (compression spring) 39,42 Knob

Claims (5)

[Claims] A rotary shaft provided in the hinge case so as to be rotatable by projecting a deformable mounting shaft portion from the hinge case; and a partition wall provided in the hinge case while the rotary shaft is inserted through a center portion. A fixed fixed cam member, a rotatable sliding cam member provided so as to be slidable and rotatable with the rotatable shaft while inserting the rotatable shaft through the center, and the rotatable sliding cam member as the fixed cam Elastic means for pressing in the direction of the member, wherein torque adjusting means for adjusting the elasticity of the elastic means to adjust the rotational torque of the rotating shaft is provided, and the torque adjusting means is provided in the axial direction of the rotating shaft. An adjusting screw that is inserted through the through hole provided so as to be rotatable using a screwdriver from the side of the deformed mounting shaft portion, and an inside of the hinge case. A hinge for opening and closing a toilet seat and a toilet lid of a Western-style toilet, wherein the adjusting screw comprises a spring holder which is screwed to a portion protruding from the rotary shaft and abuts on one end of the elastic means. 2. A rotary shaft provided in a hinge case so as to be rotatable by projecting a deformable mounting shaft from a hinge case, and a partition wall provided in the hinge case while the rotary shaft is inserted through a center portion. A fixed fixed cam member, a rotatable sliding cam member provided so as to be slidable and rotatable with the rotatable shaft while inserting the rotatable shaft through the center, and the rotatable sliding cam member as the fixed cam Elastic means for pressing in the direction of the member, wherein torque adjusting means for adjusting the elasticity of the elastic means to adjust the rotational torque of the rotating shaft is provided, and the torque adjusting means is provided in the axial direction of the rotating shaft. An adjusting screw which is inserted into a through hole provided in the hinge case so as to be rotatable from the side of the deformable mounting shaft, and the rotation of the adjusting screw in the hinge case. A spring holder which is screwed to a portion protruding from the shaft and abuts on one end of the elastic means, and a knob for rotating the adjusting screw attached to a portion of the adjusting screw projecting from the deformed mounting shaft portion. A hinge for opening and closing a toilet seat and a toilet lid of a Western-style toilet bowl. 3. A structure in which a damper ring is fitted to an outer peripheral portion of the rotary shaft in a hinge case, and the damper ring is configured to contact an inner wall of the hinge case in the presence of viscous oil. The hinge for opening and closing a toilet seat and a toilet lid of the Western-style toilet bowl according to any one of claims 1 and 2. 4. The spring holder is configured to rotate together with the rotary shaft, and a damper ring is fitted to an outer peripheral portion of the spring holder so that the damper ring contacts an inner wall of the hinge case in the presence of viscous oil. The hinge for opening and closing a toilet seat and a toilet lid of a Western-style toilet bowl according to claim 1, wherein the hinge is configured as follows. Hinges for opening and closing the toilet seat and toilet lid of a Western style toilet. 5. The hinge for opening and closing a toilet seat and a toilet lid of a Western-style toilet according to claim 1, wherein a cap is attached to one end of the hinge case.