JP3339775B2 - Toilet seat lifting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for raising and lowering a toilet seat with respect to a toilet body, and more particularly to a device for raising and lowering a toilet seat based on an inflation / deflation operation of a fluid bag.

[0002]

2. Description of the Related Art When a person sits down on a toilet seat of a Western-style toilet bowl or stands up from the toilet seat after using the toilet bowl, a heavy load is applied to the legs. Therefore, it is difficult for a person with weak legs, such as the elderly, the sick, and the physically handicapped, to sit on the toilet seat or stand up from the toilet seat. In view of the above, a toilet seat lifting / lowering device for facilitating a seating operation on a toilet seat or an operation of rising from a toilet seat has been conventionally proposed.

FIGS. 11 and 12 show an example.
Among them, the one shown in FIG. 11 separates the toilet seat 200 from the toilet bowl body 202, attaches it to the frame 204, and supports the toilet seat 200 by the frame 204. The upper frame 206 is made rotatable with respect to the lower frame 208, and an elevating cylinder 210 is connected to the upper frame 206.
Is rotated to move the toilet seat 200 up and down.

[0004] However, in the case of this toilet seat elevating device, there is a problem that the equipment becomes large-scale, the structure is complicated and the cost is high. In addition, the frame 204, the cylinder 210 and the like are exposed to the outside, so that the appearance around the toilet is improved. In addition, it is good to use the toilet by a person with weak legs, but there is a problem that an ordinary person cannot avoid feeling uncomfortable when using the toilet. In addition, there is a problem that great difficulty is involved in installing such a toilet seat elevating device on an existing toilet.

On the other hand, in the apparatus shown in FIG. 12, an airbag 212 is attached between a toilet main body 202 and a toilet seat 200, and the toilet seat 200 is raised and lowered based on the inflation / deflation operation of the airbag 212. In the case of this elevating device, the device can be prevented from becoming large, and when the toilet seat 200 is seated, the airbag 21
There is an advantage that the seat can be softly seated on the toilet seat 200 based on the shock absorbing action of (2). However, in the case of this toilet seat elevating device, there is a problem that the airbag 212 is easily contaminated, and there is a problem that when the airbag 212 is contaminated, maintenance work including cleaning thereof is difficult.

[0006]

The invention of the present application has been made to solve such a problem. Thus, according to the invention of the present application, a bag that expands and contracts due to the inflow and discharge of fluid into the interior is inserted between the toilet seat and the toilet body, and the toilet seat is raised and lowered by the inflating and contracting action of the bag. In the toilet seat elevating device, the bag is configured as a separate member separate from the toilet seat-side mounting member and the toilet body-side mounting member having a rising end defined, and the bag is placed at the lower end portion of the toilet bowl. detachably to the mounting member of the main body side and the upper end portion and detachably secured to the mounting member該便seat side, and the bag as the form to be inclined forward when inflated, the lower end portion and the front side of the bag In the above ( 1 ) , it is fixed to a mounting member on the toilet body side (Claim 1 ).

According to another aspect of the present invention, in the first aspect , the bag is fixed to the mounting member on the toilet seat side at an upper end portion and a rear portion (claim).
2 ).

According to still another aspect of the present invention, in the first or second aspect , a non-bag-shaped and sheet-shaped lower end side mounting piece is provided at a lower end of the bag so as to extend forward. In the attachment piece, the bag is fixed to the attachment member on the toilet body side (Claim 3 ).

According to still another aspect of the present invention, in the second or third aspect , a non-bag-shaped upper-side mounting piece is provided at the upper end of the bag so as to extend rearward. The bag is fixed to the mounting member on the toilet seat side (Claim 4 ).

[0010] Still another invention of the present application is characterized in that, in claim 4 , the upper end side mounting piece forms a fixing band that is wound around and fixed to a rod as a fixing portion (claim 5 ). .

In still another aspect of the present invention, in any one of claims 1 to 4 , a through hole is provided on the side of the bag, and a projection is provided on the mounting member on the toilet body side or the toilet seat side. The bag is fixed to the mounting member based on the insertion of the projection into the mounting hole (Claim 6 ).

According to still another aspect of the present invention, there is provided the method according to any one of the first to sixth aspects, wherein the bags are stacked in a plurality of stages up and down, and the bags are adhered to each other at a mating surface. It is a bellows-shaped body in a state where the bodies are in communication with each other,
And lowermost bag body on which are formed smaller than the bag of its upper side, characterized in that it is superimposed at the back of the bag body of the upper (claim 7).

Still another aspect of the present invention is characterized in that, in any one of claims 1 to 7 , the bag is an airbag which expands and contracts by inflow and discharge of air (claim 8 ).

[0014]

As described above, according to the first aspect of the present invention, the fluid bag which expands and contracts due to the inflow and discharge of the fluid into and from the toilet seat-side mounting member and the toilet body-side mounting member. According to the present invention, the upper and lower portions, which are configured as separate members in a separated form, are fixed so that the lower end portion and the upper end portion can be detachably attached to the mounting members on the toilet body side and the toilet seat side, respectively. When dirty, it can be easily removed from the toilet seat and the toilet body to perform cleaning or other maintenance work. After that, it can be easily mounted between the toilet body and the toilet seat.

[0015] The present invention also provides the bag inclined forward when inflated and upper forward Specifically, after having a form as bottom positioned relatively rearward, which in and the front portion thereof lower end the forms to secure the mounting member of the toilet bowl main body. When the bag is inclined forward when inflated in this manner, that is, when the upper portion is positioned relatively forward with respect to the lower portion, for example, when this is disposed at the rear portion between the toilet seat and the toilet body, The toilet seat can be efficiently and smoothly raised and tilted forward by the inflation action of the bag, and the toilet seat can be smoothly returned to the original position when deflated. A force that pushes this backward is exerted.

In the present invention, since the lower end of the bag is fixed to the mounting member on the toilet body side at the front side, the lower end of the bag is displaced rearward by the action of the backward pushing force. And the posture is prevented from being collapsed, and the bag can favorably support the load from the toilet seat.

On the other hand, a force is exerted on the upper end of the bag to push it forward, contrary to the lower end. Here, in the invention of claim 2 , the upper end of the bag is fixed to the mounting member on the toilet seat side at the rear side portion. By doing so,
The upper end of the bag is prevented from being displaced forward by the force applied to the bag from the toilet seat, and the posture of the bag itself is prevented from being lost.

According to a third aspect of the present invention, a non-bag-shaped and sheet-shaped mounting piece is provided at the lower end of the bag so as to extend forward, and the mounting piece is fixed to a mounting member on the toilet body side. By doing so, the lower end of the bag can be firmly fixed to the mounting member, and the fixing force can be effectively exerted on the lower end of the bag by the pulling action of the mounting piece, so that the lower end of the bag faces rearward to the lower end of the bag. This can be firmly supported even if the pushing force of the function works.

According to a fourth aspect of the present invention, a non-bag-shaped upper-side mounting piece is provided at the upper end of the bag so as to extend rearward,
Then, this is fixed to the mounting member on the toilet seat side. In this way, the upper end of the bag can be firmly fixed to the mounting member on the toilet seat side, and the front end of the bag faces forward relative to the upper end of the bag. This can be firmly supported when the pushing force acts.

In this case, the upper end side mounting piece is
A fixed band that is wound around and fixed to a rod as a fixed portion can be provided (claim 5) . In this case, the upper end of the bag can be easily fixed or released.

According to a sixth aspect of the present invention, a projection is provided on the mounting member, and a through-hole is provided on the side of the bag, and the bag is fixed based on the insertion of the projection into the mounting hole. In this case, the bag can be attached and detached very easily.

According to a seventh aspect of the present invention, the bag is formed in a bellows shape in which a plurality of bags are vertically stacked, and the lowermost bag is formed smaller than the upper bag to form a rear portion. In this case, the bag is placed on the upper bag, and in this case, the entire bag can be effectively inclined forward by the inflating action of the small bag at the bottom.

According to the invention of claim 8 , the bag is an airbag which expands and contracts by inflow and discharge of air. According to the present invention, the toilet seat elevating device can have a simple equipment configuration. . That is, it is conceivable that such a bag is inflated and contracted by inflow and discharge of a fluid such as water or oil. In this case, a tank for water or oil is separately required. However, if this is an airbag, such a tank is not required,
The equipment configuration can be simplified, and the bag can be quickly expanded and contracted. That is, the toilet seat can be raised or lowered quickly. In addition, a good cushioning effect can be provided when sitting on the toilet seat.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 3, reference numeral 10 denotes a toilet body of a Western-style toilet, reference numeral 11 denotes a flush water tank, and reference numeral 12 denotes a toilet seat. Here, the toilet body 10 and the toilet seat 12 have openings 14 and 1 respectively.
6 (FIG. 3). Reference numeral 18 denotes a local cleaning device for cleaning a human body part, reference numeral 20 denotes a main body box thereof, and reference numeral 22 denotes an operation unit.

In this embodiment, the toilet seat 12 is rotatably (openable and closable) held by the main body box 20 at the base end side. That is, in this example, the main body box 20
Constitute a holder for the toilet seat 12. It should be noted that the nozzle for jetting the washing water and the toilet lid in the local washing device 18 are omitted in FIG.

2 is provided between the toilet seat 12 and the toilet body 10.
As shown in FIG. 3, the toilet seat side plate 24, the toilet body side plate 26, and the airbag 2 as a lifting / lowering means.
8. A lifting unit 32 having a link mechanism 30 as a connecting means as a component is mounted, and the toilet seat 12 can be moved up and down a predetermined distance from the toilet main body 10 by the operation of the lifting unit 32. A decorative cover member 34 is disposed between the elevating unit 32 and the toilet seat 12.

As is clearly shown in FIG. 5, the toilet seat side plate 24 is separate from the toilet seat 12 and the main body box 20 as a holding body thereof, and is detachable from the main body box 20. The body-side plate 26 is also separate from and detachable from the toilet body 10.

The toilet seat-side plate 24 and the toilet body-side plate 26 have a pair of side portions 36 and 38 extending in the front-rear direction, respectively, and a rear portion 4 connecting them at the rear portion.
0, 42, and has a generally U-shape corresponding to the shape of the rear half of the toilet seat 12 and the toilet body 10 as a whole, and corresponds to the opening 16 of the toilet seat 12 and the opening 14 of the toilet body 10, respectively. Openings 44 and 46 are provided.

The toilet seat side plate 24 and the toilet body side plate 26 are provided with fixing holes 48, 50 at the rear portions 40, 42, respectively.
Are fixed to the body box 20 or the toilet body 10 with bolts 104 and 102 (see FIG. 4).

The toilet seat side plate 24 and the toilet body side plate 26 are formed with downward bent portions 52 and 54 at both side portions 36 and 38, respectively. Further, the lower toilet body side plate 26 is formed with an extension portion 56 in which the bent portion 54 is further partially extended downward, and the extended portion 56 and the bent portion of the toilet seat side plate 24 are formed. 52, the upper end and the lower end of a pair of front and rear link bars 60 and 62 constituting the link mechanism 30 are rotatably connected.

The toilet seat side plate 24 is moved up or down based on the rotation of the link bars 60 and 62 while maintaining the state of being connected to the toilet body side plate 26 by the link mechanism 30.

In this embodiment, the front link bar 60 is used.
The link bar 62 on the rear side is longer than the link bar 62 on the rear side. As a result, the toilet seat side plate 24 is simultaneously projected forward when ascending and takes a forwardly inclined posture (see FIG. 2).

An extension 56 of the toilet body side plate 26
, A projecting piece 66 projects obliquely rearward, and a stop bar 68 is formed on the projecting piece 66 by an L-shaped hook-shaped groove 7.
At 0, it is rotatably attached by a screw member 72.

The stop bar 68 has an engaging portion 74 which is bent outward at the distal end thereof.
Is engaged with the link bar 62 on the rear side, thereby defining the rotation end thereof, that is, the rising end of the toilet seat side plate 24. The pair of link bars 62 on the rear side
Are connected to each other left and right by a connecting rod 64 at the upper end.

The decorative cover member 34 covers the toilet seat side plate 24 of the lifting unit 32. The toilet seat side plate 24 and the toilet body side plate 26 are made of stainless steel, whereas the decorative cover member 34 is made of resin. It is made.

The decorative cover member 34 has an upper cover 75 and a side cover 76 as shown in FIG. The upper surface cover portion 75 has the same planar shape as the toilet seat side plate 24, that is, a pair of side portions 77 extending in the front-rear direction.
And a rear part 78 connecting them at the rear part, and have a substantially U-shape as a whole.

On the other hand, when the toilet seat side plate 24 is lowered, the side surface cover portion 76 hanging down from the both side portions 77 connects the side surface of the toilet body side plate 26 to the link mechanism 30.
Together with the shape and length to cover the inside. In addition, 80
Is an opening having a shape corresponding to the opening 16 of the toilet seat 12.

A fixing hole 48 is formed in a rear portion 78 of the upper surface cover portion 75. In the fixing hole 48, the decorative cover member 34 is attached to the main body box 20 as a toilet seat holder by bolts 104 (FIG. 4). Is fixed.

An abutting support portion 82 having an upwardly projecting shape is provided at the tip of a pair of side portions 77 of the upper surface cover portion 75, and the abutting support portion 82 abuts on the lower surface of the toilet seat 12. The contact makes it possible to stably support the toilet seat 12.

Further, as shown in FIG. 2, when the toilet seat side plate 24 is raised, the decorative cover member 34 allows the side cover 76 to close the gap between the toilet seat side plate 24 and the toilet body side plate 26. The shape and length are hidden.

As shown in FIGS. 4 and 6, the airbag 28 has independent bags 28A, 28B, 28C,
28D are vertically stacked in multiple stages (four stages in this example), and they are adhered to each other at an adhesive surface 86 (see FIG. 7). Each of the bags 28A, 28B, 28C, 28D has a communication hole 8
8 are in communication with each other. Further, an air injection / discharge port 90 is provided in the lowermost bag body 28D, and an air hose 92 is connected thereto. The other end of the air hose 92 is connected to an air pump (not shown).

Here, the lowermost bag 28D is smaller than the upper bag 28C as shown in FIG. 4, and is overlapped with the bag 28C at the rear side of the bag 28C. I have. As a result, when the airbag 28 is inflated by the injection (inflow) of air, the airbag 28 assumes a forwardly inclined posture.

The second and third stages of the bag body 28 from below.
As shown in FIG. 6, C and 28B are formed with forwardly extending portions 93 and 95 at both ends in the left-right direction, respectively. These extending portions 93 and 95, together with the bag body 28D when the airbag 28 is inflated, function to keep the airbag 28 in a favorable inclined position forward and prevent the airbag 28 from falling forward. In some cases, a forward extending portion may be provided only in the second-stage bag body 28C from the bottom.

Further, as shown in FIG. 7, in this embodiment, the dimension a of the portion of each of the bags 28a, 28b, 28c, 28d on the rear side of the bonding surface 86 is changed to the dimension b on the front side.
Is larger than the airbag 2
When the airbag 8 is inflated, the airbag 28 is brought into a forwardly inclined posture.

The airbag 28 is provided with a non-bag-like, ie, sheet-like, mounting piece 94 extending forward at the lowermost portion. These mounting pieces 94, extension portions 93 and 9
Numerals 5 are formed at positions that partially overlap each other vertically.

As shown in FIG. 6, a mounting hole 96 is formed in the mounting piece 94, and is fixed to the projection 98 of the toilet body side plate 26 in the mounting hole 96. In addition, as shown in FIG. 8A, the protrusion 98 is formed of a screw member in this example.

As shown in FIG. 8, in this example, the diameter of the mounting hole 96 is slightly larger than the head of the projection 98, and the mounting hole 96 is formed so as to pass through the head of the projection 98. After being fitted to 98, it is fixed to the toilet body main plate 26 by applying a pulling force rearward.

It should be noted that other various fixing forms other than the above can be adopted. FIG. 8B shows an example. In the drawing, reference numeral 106 denotes a mounting hole, which is composed of a fixing portion 108 as a hole main body and a slit 110 following the fixing portion 108. The fixing portion 108 has a smaller diameter than the head of the projection 98.

In the case of this example, the mounting hole 106 can be fitted to the projection 98 so as to push and expand the periphery of the slit 110. When the pushing force is released after the fitting, the mounting hole 106 returns to the original shape, and the fixing portion 108 of the mounting hole 106 and the shaft of the projection 98 are fitted.

On the other hand, a fixed band 100 in the form of a button is provided on the uppermost and rear side of the airbag 28, and the fixed band 100 is wound around the connecting rod 64 and fixed.

In FIG. 4, reference numerals 102 and 104 denote bolts for fixing the toilet body side plate 26 and the toilet seat side plate 24 of the lifting unit 32 to the toilet body 10 and the body box 20, respectively.

The airbag 28 can be made of a curtain material in which both sides of a woven fabric made of polyamide, polyester, aramid fiber or the like are coated with a thermoplastic resin such as polyurethane or polyvinyl chloride. However, this is only an example, and other forms are possible.

The airbag 28 of this example has a thickness of about 1 cm in a state in which all the air is discharged, that is, in a contracted state, but has a thickness of 1 cm in an inflated state in which the air is injected.
It is configured to maintain a height of about 0 to 30 cm.

In the toilet seat elevating device of this embodiment, when air is injected into the airbag 28 by an air pump (not shown) and inflated, the toilet seat side plate 24 of the elevating unit 32 6
It moves upward while rotating 0,62. As a result, the toilet seat 12 is lifted upward by a predetermined distance together with the main body box 20 of the local cleaning device 18 which is the holder.

In this embodiment, as described above, the rear link bar 62 of the pair of front and rear link bars 60 and 62 is used.
Is longer, and as a result, the toilet seat side plate 24 and the toilet seat 12 assume a forwardly inclined posture while protruding forward by a certain distance during the upward movement.

Therefore, the toilet user can easily stand up by the upward and forward movement of the toilet seat 12 and the forward tilting movement of the toilet seat 12. Conversely, toilet seat 12
When sitting down (when sitting), the toilet seat 1 in the raised state
2 can be easily seated. By exhausting the air inside the airbag 28 through a predetermined exhaust valve or the like in this state, the toilet seat 12 can be lowered slowly and gently and smoothly, and the toilet seat 12 can be placed above the toilet body 10. .

As described above, in this embodiment, the airbag 28 is detachably mounted. According to this embodiment, when the airbag 28 becomes dirty, the airbag 28 can be easily removed.
2 and can be removed from the toilet body 10 for cleaning or other maintenance work. After that, it can be easily mounted between the toilet body 10 and the toilet seat 12.

In this embodiment, since the airbag 28 is in the forwardly inclined position when inflated, the toilet seat 12 can be efficiently and smoothly raised or in the forwardly inclined position.
Can be smoothly returned to the original position. At this time, a force for pushing the lower end portion backward and a force for pushing the upper end portion forward act on the airbag 28. In this example, the mounting pieces 9 on the front side of the lower end portion of the airbag 28 act.
In FIG. 4, since this is fixed to the toilet body side plate 26, the airbag 28
Is prevented from causing a rearward misalignment of the lower end portion and a collapse of the posture.

Further, since the upper end of the airbag 28 is fixed to the connecting rod 64 of the toilet seat side plate 24 by the fixing band 100 at the rear side, the upper end of the airbag 28 is displaced forward, and Airbag 2
8 is prevented from being distorted.

At the lower end of the airbag 28, a sheet-like mounting piece 94 is provided so as to extend forward, and the mounting piece 94 is fixed to the toilet body side plate 26. The part can be firmly fixed to the toilet body side plate 26 and the mounting piece 94
, The fixing force can be effectively exerted on the bag body of the airbag 28.

Further, a fixing band 100 is provided at the upper end of the airbag 28 so as to extend rearward, and is fixed to the connecting rod 64 of the toilet seat side plate 24. Can be firmly fixed to the toilet seat side plate 24 and the airbag 28
Can be firmly supported when a force is applied to the upper end of the front end to push the front end forward. Also, the upper end of the airbag 28 can be easily fixed or released.

In this example, the projection 98 is provided on the toilet seat side plate 26.
Mounting holes 96 (10
6) is provided, and the airbag 28 is fixed based on the insertion of the projection 98 into the mounting hole 96 (106), so that the airbag 28 can be attached and detached extremely easily.

FIGS. 9 and 10 show another embodiment of the present invention. As shown in the figure, in this example, a non-bag-shaped and sheet-shaped mounting piece 112 extending rearward is provided at the upper end of the airbag 28, and a pair of mounting holes 96 are provided near the left and right ends of the mounting piece 112. The upper end of the airbag 28 is fixed by fitting the mounting hole 96 to a projection 98 provided on the toilet seat side plate 24. Here, the mounting hole 96 can be formed in various forms as in the above embodiment. Also, the projection 98 can be made of a screw member.

Although the embodiment of the present invention has been described in detail, this is merely an example, and the present invention can be configured in variously modified forms without departing from the gist thereof.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a Western-style toilet with a toilet seat elevating device according to an embodiment of the present invention.

FIG. 2 is a view showing the toilet seat elevating device in FIG. 1 together with the toilet seat and the toilet body with the toilet seat raised.

FIG. 3 is an exploded perspective view showing the toilet seat elevating device in FIG. 1 disassembled into components.

FIG. 4 is a view showing the airbag in the toilet seat lifting device of the same embodiment together with its peripheral portion in an inflated state.

FIG. 5 is an enlarged perspective view showing the lifting unit in FIG. 3;

FIG. 6 is a perspective view showing the airbag in FIGS. 2, 3, and 4;

FIG. 7 is a diagram showing a planar shape of the airbag of FIG. 6;

FIG. 8 is an enlarged view of a main part of the airbag of FIG. 7;

FIG. 9 is a view showing an airbag according to another embodiment of the present invention in an inflated state together with a peripheral portion thereof.

FIG. 10 is a perspective view showing the airbag of FIG. 9;

FIG. 11 is a diagram showing an example of a conventional toilet seat elevating device.

FIG. 12 is a view showing an example of a conventional toilet seat elevating device different from FIG.

[Explanation of symbols]

 Reference Signs List 10 toilet body 12 toilet seat 20 body box 24 toilet seat side plate 26 toilet body side plate 28 airbag 28A, 28B, 28C, 28D bag body 32 elevating unit 64 connecting rod 86 bonding surface 88 communication hole 94, 112 mounting pieces 96, 106 mounting Hole 100 Fixed band

Continuation of front page (72) Inventor Hideto Tamai 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Co., Ltd. Molten Co., Ltd. (56) References Registered utility model 3007794 (JP, U) (58) Fields investigated (Int .Cl. ⁷ , DB name) A47K 13/10

Claims (8)

(57) [Claims] 1. A toilet seat elevating device in which a bag that expands and contracts by inflow and discharge of a fluid into the interior is inserted between a toilet seat and a toilet body, and the toilet seat is raised and lowered by an inflating and contracting action of the bag. In the apparatus, the bag is configured as a separate member separated from the mounting member on the toilet seat side and the mounting member on the toilet body side having a rising end defined, and the bag is mounted at the lower end on the toilet body side. removably to the member, also an upper portion and detachably secured to the mounting member該便seat side, and the bag as the form to be inclined forward when inflated, the toilet body at the lower end and the front side of the bag A toilet seat elevating device fixed to a mounting member on the side. 2. The toilet seat elevating device according to claim 1 , wherein the bag is fixed to an attachment member on the toilet seat side at an upper end portion and a rear side portion. 3. The method of claim 1 or 2, wherein and non bag shape and sheet-shaped lower end mounting piece to the lower end of the bag is provided in a state of extending out to the front, is the bag at the lower end attaching piece A toilet seat lifting device fixed to a mounting member on the toilet body side. 4. The method of claim 2 or 3, the upper end of the bag and non-pouched upper end mounting piece is provided in the state of extending out to the rear, the bag is the toilet seat side in the upper end mounting piece A toilet seat elevating device fixed to a mounting member of the toilet seat. 5. The toilet seat elevating device according to claim 4 , wherein the upper end side mounting piece forms a fixing band which is fixedly wound around a rod as a fixing portion. 6. The bag according to claim 1, wherein a through hole is provided on the side of the bag, and a protrusion is provided on a mounting member on the toilet body side or on the toilet seat side, and the protrusion is provided on the mounting hole. Wherein the bag is fixed to the mounting member based on insertion of the toilet seat. 7. The bag according to any one of claims 1 to 6 , wherein the bags are stacked in a plurality of stages up and down, and the bags are adhered to each other at a mating surface, and the bags are communicated with each other through a communication hole. Toilet seat elevating device, wherein the lowermost bag is formed smaller than the upper bag, and is stacked at the rear of the upper bag. . In any of 8. claims 1-7, toilet seat lifting device, wherein the bag is an air bag to expand and contract by introduction and discharge of air.