JP5407286B2 - Toilet seat device - Google Patents

Description

  The present invention relates to a toilet seat device that can be attached to a Western-style toilet and can remove a toilet seat and a toilet lid.

  In recent years, Western-style toilets equipped with toilet seat devices with toilet seat / toilet lid opening / closing mechanisms are increasing. When cleaning a toilet seat device or the like in such a Western-style toilet, it is necessary to remove or attach the toilet seat and the toilet lid, so it is desirable that the toilet seat and toilet lid can be easily attached and detached. Therefore, a toilet seat device provided with a mechanism that can easily attach and detach the toilet seat and toilet lid has been proposed (see, for example, Patent Document 1).

  As shown in FIGS. 10 and 11, the toilet seat device 50 described in Patent Document 1 is capable of lying down and standing on the front side of the main body 50 a installed on the rear upper surface of the western-style toilet (not shown). And a toilet seat 51 and a toilet lid 52 attached to the toilet seat. A hinge pin 54R for driving the toilet seat 51 to open and close is projected from the right side surface of the main body 50a, and a hinge pin 54L for projecting to open and close the toilet lid 52 is projected from the left side of the main body 50a. . The hinge pin 54R is provided in a state protruding from the right drive mechanism storage portion 53a of the main body 50a, and the hinge pin 54L is provided in a state of protruding from the left drive mechanism storage 53b of the main body 50a. The tip portions 54a of the hinge pins 54L and 54R are both T-shaped.

  As shown in FIG. 11 (corresponding to FIG. 2 of Patent Document 1), the toilet lid hinge portion 52A provided at the proximal end portion 52a of the toilet lid 52 is attached to the distal end portion 54a of the hinge pin 54R on the right side of the main body portion 50a. The hinge pin holding portion 51b provided on the toilet seat hinge portion 51B of the toilet seat 51 is attached to the distal end portion 54a of the hinge pin 54L on the left side of the main body portion 50a. Further, a notch groove 51c is provided in the right toilet seat hinge portion 51A of the toilet seat 51, a notch groove 51d is provided in the left toilet seat hinge portion 51B, and a notch groove is provided in the right toilet lid hinge portion 52A of the toilet lid 52. 52c is provided. The notch grooves 51c and 52c are for inserting and removing the hinge pin 54R, and the notch groove 51d is for inserting and removing the hinge pin 54L. Further, the cutout groove 51d of the toilet seat hinge 51B on the left side of the toilet seat 51 and the cutout groove 52c of the toilet lid hinge part 52A on the right side of the toilet lid 52 are respectively closed by a slidable holding body 56.

  Furthermore, as shown in FIGS. 10 to 13, it is located on the side of the other (right side) hinge portion 51 </ b> A of the toilet seat 51 and is usually hidden by the proximal end portion 52 a of the toilet lid 52 attached to the hinge pin 54 </ b> R. The restricting piece 51e is projected at the position. Thus, normally, the toilet lid hinge portion 52A does not come off the hinge pin 54R. However, if the holder 56 is manually slid and the base end portion 52a is removed from the hinge pin 54R, the toilet lid 52, The toilet seat 51 can be removed from the main body 50a.

JP 2007-11111 A

  The toilet seat device described in Patent Document 1 is excellent in that the toilet seat / toilet lid can be easily attached / detached. However, as shown in FIG. 11, the toilet seat hinge portion on the right side of the toilet seat 51 described above is structurally shown. A gap S exists between the periphery of the restricting piece 51e of 51A and the base end portion 52a of the toilet lid 52. Moreover, as shown in FIGS. 11-13, since the notch groove 51c of the toilet seat hinge part 51A is formed so as to cover a part of the regulating piece 51e, the toilet seat hinge part 51A and the regulating piece 51e are provided with the toilet lid. It is movable in the direction of coming out of the driving hinge pin 54R. For this reason, when the toilet seat 51 is opened and closed, the vicinity of the toilet seat hinge portion 51 </ b> A on the right side of the toilet seat 51 within the gap S may be rattled.

  Therefore, the problem to be solved by the present invention is to suppress rattling during the opening / closing operation of the toilet seat.

The toilet seat device of the present invention includes a casing, a pair of hinge pins protruding outward from the left and right side surfaces of the casing, a toilet seat having a pair of left and right toilet seat hinges that are detachably attached to the pair of hinge pins, Removable with respect to both of the pair of hinge pins or with respect to one hinge pin of the pair of hinge pins and a protrusion projecting from the side of the toilet seat hinge portion attached to the other hinge pin. In a toilet seat device comprising a toilet lid having a pair of left and right toilet lid hinges to be mounted,
At least one of the pair of left and right toilet seat hinges is provided with a notch groove in which the hinge pin can be taken in and out in a direction perpendicular to the axial direction,
A base end portion of the toilet lid having the pair of left and right toilet lid hinge portions is provided so as to cover a part of the toilet seat hinge portion attached to the hinge pins along the axial direction of the hinge pins.
At least one of the pair of left and right toilet lid hinges is attached to the hinge pin so as to cover a part of the toilet seat hinge attached to the hinge pin,
A regulating member disposed in a gap formed between the toilet seat hinge part and a base end part of the toilet lid provided with the one toilet lid hinge part in a direction orthogonal to the axial direction of the hinge pin; It is attached to the base end part of the said toilet lid provided with one toilet lid hinge part.

  With such a configuration, the gap between the toilet seat hinge part and the toilet lid hinge part is filled with the regulating member, and the toilet seat hinge part is immovable with respect to the hinge pin in a direction perpendicular to the axial direction thereof. Therefore, rattling when opening and closing the toilet seat can be suppressed.

Here, the notch groove is provided in one of the pair of left and right toilet seat hinges, and the hole into which the tip of the hinge pin is inserted is provided in the other,
One of the pair of left and right toilet lid hinges is provided with a groove that allows the hinge pin to be taken in and out in a direction perpendicular to the axial direction,
And disposing the regulating member between the proximal end of the flight lid the one toilet lid hinge section and the one of the toilet seat hinge portion is provided,
Providing a holding member that closes the concave groove to prevent the hinge pin from coming off,
It is desirable to provide an operation unit that moves the holding member in a direction to release the block of the concave groove by the holding member.

  With such a configuration, it is possible to release the closure of the concave groove by a simple operation of operating the operating portion and moving the holding member, and thus the toilet lid and the toilet seat can be easily removed.

In this case, the restriction member is provided at a position aligned with the concave groove, and has a groove portion capable of taking in and out a part of the toilet seat hinge portion,
It is desirable that a part of the toilet seat hinge portion is rotatably fitted in the groove portion, and the toilet lid hinge portion is held by the hinge pin and the toilet seat hinge portion.

  With such a configuration, the load on the toilet lid is supported by both the hinge pin and the toilet seat hinge portion, and the load applied to the hinge pin can be reduced. It can be avoided.

Next, the toilet seat device of the present invention includes a casing, a toilet seat and a toilet lid that are rotatable with respect to the casing, a toilet seat rotation adjusting unit that is built in the casing and adjusts the rotation of the toilet seat, and the casing. A toilet lid rotation adjustment unit that adjusts rotation of the toilet lid, a toilet seat drive hinge pin connected to the toilet seat rotation adjustment unit, and a toilet lid drive connected to the toilet lid rotation adjustment unit A hinge pin for
A pair of toilet seat hinges is provided at a proximal end portion of the toilet seat provided along the axial direction of the hinge pin, and one toilet seat hinge of the pair of toilet seat hinges is used as the toilet lid driving hinge pin. The toilet seat is mounted so that the other toilet seat hinge portion cannot rotate with respect to the toilet seat drive hinge pin.
A pair of toilet lid hinges is provided at a proximal end of the toilet lid, and one toilet lid hinge of the pair of toilet lid hinges is not rotatable with respect to the toilet lid driving hinge pin, and the other Attach the toilet lid so that the toilet lid hinge portion can be rotated with respect to the protruding portion protruding from the side of the other toilet seat hinge portion,
A guide portion extending along the toilet lid driving hinge pin protrudes from a side of the one toilet seat hinge portion,
A regulating member that fills a gap formed between the guide portion and a base end portion of the toilet lid provided with the one toilet lid hinge portion in a direction orthogonal to an axial direction of the toilet lid driving hinge pin; It is attached to the base end part of the said toilet lid provided with one toilet lid hinge part.

  With such a configuration, when the toilet seat is opened and closed, the peripheral surface of the toilet seat guide portion rotates while contacting the regulating member attached to the toilet lid, so that rattling when the toilet seat is opened and closed is suppressed. Can do.

Here, in the one toilet lid hinge portion, a concave groove is provided in which the toilet lid driving hinge pin can be taken in and out in a direction perpendicular to the axial direction, and the concave groove is closed to prevent the toilet lid hinge pin from coming off. Providing a holding member to prevent,
It is desirable to provide an operation unit that moves the holding member in a direction to release the block of the concave groove by the holding member.

  With such a configuration, the closure of the concave groove can be released by a simple operation of operating the operation portion and moving the holding member, so that the toilet lid can be easily removed.

In this case, the restricting member has a groove portion that is provided at a position aligned with the concave groove and takes the guide portion in and out.
It is desirable that the guide portion is rotatably fitted in the groove portion, and the toilet lid is held by the toilet lid driving hinge pin and the guide portion.

  With such a configuration, since the load on the toilet lid is supported by both the toilet lid driving hinge pin and the guide portion, the load applied to the toilet lid rotation adjusting portion can be reduced. Can be prevented.

  According to the present invention, it is possible to provide a toilet seat device capable of suppressing rattling during a toilet seat opening / closing operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view showing a toilet seat device according to an embodiment of the present invention, FIG. 2 is a partially omitted sectional view taken along line AA of FIG. 1, and FIG. 3 is a partially enlarged view of a right side portion of FIG. 4 is a cross-sectional view showing a state in which the holding portion is moved in FIG. 3, and FIG. 5 is a partially omitted cross-sectional view taken along the line BB in FIG.

  As shown in FIGS. 1 to 4, the toilet seat device 10 of the present embodiment is configured to rotate around the casing 10 b and a casing 10 b that form an outer shape of a main body 10 a that is installed on the rear upper surface of a western-style toilet (not shown). A toilet seat 11 and a toilet lid 12 that are detachably mounted are provided. The casing 10b incorporates a toilet seat rotation adjusting unit 13b for adjusting the rotation of the toilet seat 11 and a toilet lid rotation adjusting unit 13a for adjusting the rotation of the toilet lid 12. A toilet seat driving hinge pin 14L connected to the toilet seat rotation adjusting portion 13b protrudes on the left side of the casing 10b, and a toilet lid driving hinge pin 14R connected to the toilet lid rotation adjusting portion 13a protrudes on the right side of the casing 10b. Has been.

  At the tips of the hinge pins 14L, 14R, there are provided T-shaped tips 14a for holding the toilet seat hinge 11B and the toilet lid hinge 12A so as to engage with each other. In addition, as the toilet lid rotation adjusting unit 13a and the toilet seat rotation adjusting unit 13b, for example, an electric opening / closing device that opens and closes the toilet lid 12 and the toilet seat 11 by using a driving force of a motor, and a loose closing that adjusts a closing speed. An apparatus can be used.

  A pair of toilet seat hinge portions 11A and 11B are provided at the left and right proximal end portions of the toilet seat 11, and the right toilet seat hinge portion 11A (one toilet seat hinge portion) of the pair of toilet seat hinge portions 11A and 11B is a toilet lid. The left toilet seat hinge part 11B (the other toilet seat hinge part) is attached so as to be unrotatable with respect to the front end of the toilet seat drive hinge pin 14L. ing. Thereby, the toilet seat 11 is supported by the main body part 10a so that it can stand up and fall. The toilet seat hinge portion 11B on the left side is a hole into which the tip of the toilet seat drive hinge pin 14L is inserted.

  Further, as shown in FIG. 3, the right toilet seat hinge portion 11A is held by the toilet lid driving hinge pin 14R, and can also be held by the right upper surface 10c of the casing 10b. That is, the load on the toilet seat 11 is dispersed and supported by the pair of left and right hinge pins 14R and 14L and the casing 10b.

  A pair of toilet lid hinges 12A and 12B are provided on the left and right base ends 12a and 12b of the toilet lid 12, and the right toilet lid hinge 12A (one of the pair of toilet lid hinges 12A and 12B) The toilet lid hinge portion) is non-rotatably attached to the toilet lid driving hinge pin 14R, and the left toilet lid hinge portion 12B (the other toilet seat hinge portion) protrudes laterally of the toilet seat hinge portion 11B. It is rotatably attached to the part 11c. Thereby, the toilet lid 12 is supported by the main body part 10a so that it can stand up and fall.

  As shown in FIGS. 3 to 5, a guide portion 11 d extending along the toilet lid driving hinge pin 14 </ b> R protrudes from the side of the right toilet seat hinge portion 11 </ b> A. A notch groove 11e for inserting / removing the toilet lid driving hinge pin 14R in a direction orthogonal to the axial direction of the toilet lid driving hinge pin 14R is formed in a part of the guide portion 11d. In addition, a regulating member 15 that fills a gap formed between the guide portion 11d and the base end portion 12a of the toilet lid 12 in a direction orthogonal to the axial direction of the toilet lid driving hinge pin 14R is attached in the base end portion 12a. It has been.

  Here, based on FIGS. 6 to 9, the structure, function, and the like in the vicinity of the right base end portion 12 a of the toilet lid 12 will be described. 6 is a perspective view showing the vicinity of the right base end portion of the toilet lid of the toilet seat device shown in FIG. 1, and FIG. 7 is a perspective view showing a state where the right base end portion of the toilet lid shown in FIG. 6 is detached from the hinge pin. 8 is a perspective view showing a state in which the regulating member is removed from the base end portion on the right side of the toilet lid shown in FIG. 7, FIG. 9A is a front view showing the regulating member, and FIG. 8B shows the regulating member. The side view to show and the said (c) are the rear views which show the said control member.

  As shown in FIGS. 6 to 8, a toilet lid driving hinge pin 14 </ b> R (see FIGS. 3 to 5) is provided on the toilet lid hinge portion 12 </ b> A disposed in the proximal end portion 12 a of the toilet lid 12. A U-shaped groove 12c that can be taken in and out in an orthogonal direction is provided, and a holding member 16 that prevents the toilet lid driving hinge pin 14R from coming off by closing the open end of the groove 12c so as to be openable and closable is provided. Yes. The holding member 16 is movable in the axial direction of the hinge pin 14R for driving the toilet lid (in the direction of the arrow X in FIG. 3), and the holding member 16 is normally rotated by the spring 16b to close the concave groove 12c. It is urged toward the dynamic adjustment unit 13a. Thereby, as shown in FIG. 6, the toilet lid hinge portion 12A of the right base end portion 12a of the toilet lid 12 is held by the toilet lid driving hinge pin 14R (see FIGS. 3 to 5).

  As shown in FIG. 7, the restricting member 15 has a U-shaped groove 15a for taking in and out the guide portion 11d (see FIGS. 3 and 5) of the toilet seat hinge portion 11A, and a recess in the toilet lid hinge portion 12A. It is provided at a position aligned with the groove 12c. Further, the guide portion 11 d of the toilet seat hinge portion 11 </ b> A is rotatably fitted in the groove portion 15 a of the restriction member 15. The toilet lid hinge 12A is held so as to engage with the tip of the toilet lid driving hinge pin 14R. Therefore, the toilet lid 12 is held by the toilet lid driving hinge pin 14R and the guide portion 11d.

  As shown in FIG. 4, when the operation part 16a is operated with the toilet lid 12 opened, and the holding member 16 is moved in the direction of the arrow X1 (direction opposite to the toilet lid rotation adjusting part 13a), Since the open end of 12c is opened and the blockage is released, in this state, when the base end portion 12a on the right side of the toilet lid 12 is lifted, the concave groove 12c forms the toilet lid drive hinge pin 14R (see FIGS. 3 to 5). The groove 15a of the restricting member 15 is disengaged from the guide portion 11d and the proximal end portion 12a of the toilet lid 12 is detached from the toilet lid driving hinge pin 14R as shown in FIG. Further, if the operation opposite to that described above is performed, the base end portion 12a of the toilet lid 12 can be attached to the toilet lid driving hinge pin 14R.

  Here, based on FIG. 8, FIG. 9, the shape, function, etc. of the control member 15 are demonstrated. As shown in FIG. 8, the regulating member 15 is attached in a rib 12 r formed in the proximal end portion 12 a of the toilet lid 12. As shown in FIG. 9, the regulating member 15 is a substantially C-shaped member, and protrudes from the front surface to the rear surface through the screw hole 15b, the U-shaped groove portion 15a described above, and the outer peripheral surface in the diameter-enlarging direction. 15d, and a rotation stopper 15c projecting in parallel with the axial direction of the screw hole 15b from the back side.

  As shown in FIG. 8, a reinforcing rib 12r, a screw hole 12d, and a recess 12f are provided in the proximal end portion 12a of the toilet lid 12, and a corner portion is formed at the boundary between the proximal end portion 12a and the lower surface of the toilet lid 12a. 12e is provided. A toilet lid hinge portion 12A is fitted between the ribs 12r in the base end portion 12a, and a restricting member 15 is disposed so as to partially overlap the toilet lid hinge portion 12A, and the small hole 15b of the restricting member 15 is inserted into the screw hole 12d. The restriction member 15 is fixed in the base end portion 12a by screwing a screw (not shown).

  At this time, the rotation stopper 15c of the regulating member 15 is fitted into the recess 12f, and the locking portion 15d is fitted into the corner portion 12e, whereby the regulating member 15 is placed in the base end portion 12a as shown in FIG. It is fixed integrally. In the state shown in FIG. 7, the recessed groove 12c of the toilet lid hinge portion 12A and the U-shaped groove portion 15a of the regulating member 15 are arranged in the same phase.

  As described above, in the toilet seat device 10, the regulating member 15 that fills the gap formed between the guide portion 11d and the base end portion 12a of the toilet lid 12 in the direction orthogonal to the axial direction of the toilet lid driving hinge pin 14R. Is attached in the proximal end portion 12 a of the toilet lid 12. Since the toilet lid 12 is engaged with the distal end portion 14a of the toilet lid driving hinge pin 14R, it does not wobble with respect to the toilet lid driving hinge pin 14R. As shown in FIG. 5, when the toilet seat 12 is opened and closed, the outer peripheral surface of the guide portion 11 d of the toilet seat 11 is the inner peripheral surface of the groove portion 15 a of the regulating member 15 attached to the proximal end portion 12 a of the toilet lid 12. Therefore, the guide portion 11d does not wobble around the toilet lid drive hinge pin 14R during the rotation of the toilet seat 11, and the rattling when the toilet seat 11 is opened and closed can be suppressed.

  Further, the toilet lid hinge portion 12A is provided with a U-shaped concave groove 12c into which the toilet lid driving hinge pin 14R (see FIGS. 3 to 5) can be taken in and out in a direction orthogonal to the axial direction. A holding member 16 that closes the open end so as to be openable and prevents the toilet lid driving hinge pin 14R from coming off is provided. Therefore, since the closure of the concave groove 12c can be released by a simple operation of operating the operation portion 16a to move the holding member 16, the toilet lid 12 can be easily removed.

  After the toilet lid 12 is removed, the guide portion 11d of the toilet seat 11 is allowed to be removed from the toilet lid driving hinge pin 14R, so that the guide is guided from the toilet lid driving hinge pin 14R through the notch groove 11e (see FIG. 5). The toilet seat 11 can be removed from the pair of hinge pins 14R and 14L by pulling out the portion 11d and pulling out the right toilet seat hinge portion 11a and then pulling out the left toilet seat hinge portion 11b from the toilet seat drive hinge pin 14L.

  Further, the groove portion 15a of the restricting member 15 provided for inserting and removing the guide portion 11d is in a position aligned with the concave groove 12c of the toilet lid hinge portion 12A, and the guide portion 11 is rotatably fitted in the groove portion 15a. Further, the toilet lid 12 is held by the toilet lid driving hinge pin 14R and the guide portion 11d. As described above, since the load on the toilet seat 11 on which the guide portion 11d is formed is supported by the toilet lid driving hinge pin 14R and the casing 10b, the load on the toilet lid 12 is applied to both the toilet lid driving hinge pin 14R and the casing 10b. The load applied to the toilet lid rotation adjusting portion 13a can be reduced. Therefore, even when the toilet lid 12 is formed of a material having a large specific gravity, the failure of the toilet lid rotation adjusting portion 13a can be suppressed.

  Instead of the structure in which the toilet lid hinge portion 12A is fitted into the proximal end portion 12a of the toilet lid 12, the toilet lid hinge portion 12A can be integrated with the proximal end portion 12a of the toilet lid 12. Further, as shown in FIG. 2, the toilet lid hinge portion 12B is engaged with the protruding portion 11c of the toilet seat 11, but instead, the tip of the toilet seat drive hinge pin 14L is extended to extend the toilet seat hinge portion 11B. The toilet lid hinge portion 12B may be rotatably mounted on the toilet seat drive hinge pin 14L. In this case, the pair of left and right toilet lid hinge portions 12A and 12B of the toilet lid 12 are both attached to the hinge pins.

It is a perspective view which shows the toilet seat apparatus which is embodiment of this invention. FIG. 2 is a partially omitted cross-sectional view taken along line AA in FIG. 1. FIG. 3 is a partially enlarged view of a right side portion of FIG. 2. It is sectional drawing which shows the state which moved the holding | maintenance part in FIG. FIG. 4 is a partially omitted cross-sectional view taken along line BB in FIG. 3. It is a perspective view which shows the base end part vicinity of the right side of the toilet lid of the toilet seat apparatus shown in FIG. It is a perspective view which shows the state which made the base end part of the right side of the toilet lid shown in FIG. 6 remove | separated from the hinge pin. It is a perspective view which shows the state which removed the regulating member from the base end part of the right side of the toilet lid shown in FIG. (A) is a front view which shows a control member, (b) is a side view which shows the said control member, (c) is a rear view which shows the said control member. It is a perspective view which shows the conventional toilet seat apparatus. It is sectional drawing in the XX line of FIG. It is a partially-omission perspective view which shows the toilet seat apparatus shown in FIG. 10 in a toilet lid removal state. It is an enlarged view of the part shown by the arrow C of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Toilet seat apparatus 10a Main body part 10b Casing 10c, 11c Projection part 11 Toilet seat 11A, 11B Toilet seat hinge part 11d Guide part 12 Toilet lid 12A, 12B Toilet lid hinge part 12a, 12b Base end part 13a Toilet lid rotation adjustment part 13b Toilet seat rotation Dynamic adjustment portion 14a Tip portion 14L Toilet seat drive hinge pin 14R Toilet lid drive hinge pin 15 Restriction member

Claims (6)

For both the casing, a pair of hinge pins projecting outward from the left and right side surfaces of the casing, a toilet seat having a pair of left and right toilet seat hinges detachably attached to the pair of hinge pins, and the pair of hinge pins Or a pair of left and right stool detachably attached to one hinge pin of the pair of hinge pins and a protrusion projecting from the side of the toilet seat hinge part attached to the other hinge pin In the toilet seat device provided with a toilet lid having a lid hinge part,
At least one of the pair of left and right toilet seat hinges is provided with a notch groove in which the hinge pin can be taken in and out in a direction perpendicular to the axial direction,
A base end portion of the toilet lid having the pair of left and right toilet lid hinge portions is provided so as to cover a part of the toilet seat hinge portion attached to the hinge pins along the axial direction of the hinge pins.
At least one of the pair of left and right toilet lid hinges is attached to the hinge pin so as to cover a part of the toilet seat hinge attached to the hinge pin,
A regulating member disposed in a gap formed between the toilet seat hinge part and a base end part of the toilet lid provided with the one toilet lid hinge part in a direction orthogonal to the axial direction of the hinge pin; A toilet seat device mounted on a base end portion of the toilet lid provided with one toilet lid hinge portion.
One of the pair of left and right toilet seat hinges is provided with the notch groove, and the other is provided with a hole into which the tip of the hinge pin is inserted,
One of the pair of left and right toilet lid hinges is provided with a groove that allows the hinge pin to be taken in and out in a direction perpendicular to the axial direction,
And disposing the regulating member between the proximal end of the flight lid the one toilet lid hinge section and the one of the toilet seat hinge portion is provided,
Providing a holding member that closes the concave groove to prevent the hinge pin from coming off,
The toilet seat device according to claim 1, further comprising an operation unit that moves the holding member in a direction to release the blockage of the concave groove by the holding member.
The restricting member is provided at a position aligned with the concave groove, and has a groove part capable of taking in and out a part of the toilet seat hinge part,
The toilet seat device according to claim 2, wherein a part of the toilet seat hinge portion is rotatably fitted in the groove portion, and the toilet lid hinge portion is held by the hinge pin and the toilet seat hinge portion. A casing, a toilet seat and a toilet lid that are rotatable with respect to the casing; a toilet seat rotation adjusting unit that is built in the casing and adjusts the rotation of the toilet seat; and a rotation of the toilet lid that is built in the casing. A toilet lid rotation adjusting unit to adjust, a toilet seat driving hinge pin connected to the toilet seat rotation adjusting unit, and a toilet lid driving hinge pin connected to the toilet lid rotation adjusting unit,
A pair of toilet seat hinges is provided at a proximal end portion of the toilet seat provided along the axial direction of the hinge pin, and one toilet seat hinge of the pair of toilet seat hinges is used as the toilet lid driving hinge pin. The toilet seat is mounted so that the other toilet seat hinge portion cannot rotate with respect to the toilet seat drive hinge pin.
A pair of toilet lid hinges is provided at a proximal end of the toilet lid, and one toilet lid hinge of the pair of toilet lid hinges is not rotatable with respect to the toilet lid driving hinge pin, and the other Attach the toilet lid so that the toilet lid hinge portion can be rotated with respect to the protruding portion protruding from the side of the other toilet seat hinge portion,
A guide portion extending along the toilet lid driving hinge pin protrudes from a side of the one toilet seat hinge portion,
A regulating member that fills a gap formed between the guide portion and a base end portion of the toilet lid provided with the one toilet lid hinge portion in a direction orthogonal to an axial direction of the toilet lid driving hinge pin; A toilet seat device mounted on a base end portion of the toilet lid provided with one toilet lid hinge portion.
The one toilet lid hinge portion is provided with a recessed groove that allows the toilet lid driving hinge pin to be taken in and out in a direction perpendicular to the axial direction, and the recessed groove is closed to prevent the toilet lid hinge pin from coming off. A member,
The toilet seat device according to claim 4, further comprising an operation unit that moves the holding member in a direction in which the blocking of the concave groove by the holding member is released. The restricting member has a groove portion that is provided at a position aligned with the concave groove and takes the guide portion in and out,
6. The toilet seat device according to claim 5, wherein the guide portion is rotatably fitted in the groove portion, and the toilet lid is held by the toilet lid driving hinge pin and the guide portion.

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