JP3159027B2 - 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 toilet seat elevating device, and more particularly, to a toilet seat elevating device which inflates a bag by supplying a fluid such as air into the bag, thereby lifting the toilet seat.

[0002]

2. Description of the Related Art A toilet seat lifting / lowering device which raises a toilet seat by supplying a fluid into a bag is disclosed in Japanese Unexamined Utility Model Publication No. 1-15599.
And Japanese Utility Model Laid-Open Publication No. Hei 7-24322, Utility Model Registration Publication No. 3007794, and the like.

[0003]

In the above-mentioned conventional toilet seat elevating device, in order to discharge fluid from the inside of the bag and lower the toilet seat, it is necessary to operate a valve to communicate the inside of the bag to the outside. is there. For this reason, for users who are not familiar with how to use, the toilet seat cannot be lowered,
A situation may occur in which the toilet seat cannot be used in a normal (falling) state.

[0004] It is an object of the present invention to provide a toilet seat elevating device in which the raised toilet seat is automatically lowered without any special operation.

Further, the present invention allows this toilet seat lowering operation to be performed only by a relatively simple mechanical structure without using a special automatic control device (for example, comprising a human body detection sensor and an electric valve). With the goal.

[0006]

SUMMARY OF THE INVENTION A toilet seat lifting device according to the present invention comprises a bag for pushing up a toilet seat, a pressure source for supplying fluid to the bag and inflating the bag, and a flow source for communicating the bag with the pressure source. A first port connected to a pressure source, a second port connected to the bag, and a third port for releasing fluid from the second port in the middle of the flow path. A three-way valve device having the following configuration. The three-way valve device transmits the pressurized fluid from the pressure source to the first
A check portion for pushing up a toilet seat for transmitting a fluid from a port to a second port and preventing a backflow of fluid from the second port to the first port; and a second port by the pressurized fluid pressure when the pressurized fluid is supplied from the pressure source. Side and cut off the communication between the second port and the third port. When the supply of the pressurized fluid from the pressure source is stopped, the residual pressure in the bag moves to the first port side to move to the first port side. And a pressure-responsive switching unit for communicating the two ports with the third port.

In such a toilet seat elevating device, when the operation of a pressure source such as a pump is stopped, the pressure in the bag naturally flows out from the second port through the third port, and the toilet seat gradually descends.

The three-way valve device is separated from the cavity by a partition having one end communicating with the first port and the other end communicating with the second port, and is separated from the cavity by the partition. A tertiary chamber communicated with the cavity through an inner hole of the protruding cylindrical portion, and is seated removably at the tip of the cylindrical portion, and an outer peripheral portion is in contact with an inner surface of the hollow portion. A valve body which is a releasable soft portion, wherein the interior of the cavity is partitioned into a first chamber on the first port side and a secondary chamber on the second port side by the valve body. During operation of the pressure source, the fluid pressure from the first port seats on the distal end of the tubular portion to cut off communication between the second port and the third port, and the outer peripheral portion of the valve body is Deflected to the secondary chamber side and separated from the inner surface of the cavity to communicate the first port and the second port. And unseated from the tubular tip by residual pressure in the bag that is introduced from the port the second port and the third
It is preferable that the port communicates with the port, and that the outer peripheral portion of the valve body is in close contact with the inner surface of the hollow portion to block communication between the first port and the second port.

By providing a noise reduction member in the tertiary chamber, noise when fluid (especially air) flows out can be reduced.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. 1 (a) and 1 (b) are perspective views of a Western-style toilet 10 provided with a toilet seat elevating device according to an embodiment, FIG. 2 is a side view thereof, FIGS. 3 and 4 are exploded perspective views thereof, and FIG. The figure is an overall configuration diagram, and FIG. 6 is a sectional view of a three-way valve device. In FIG. 2, the illustration of the toilet seat support plate is omitted.

A fixed base 12 is provided on the rear upper surface of the Western style toilet 10.
Are fixed by bolts 14 and nuts 16.
The bolt 14 is inserted into a toilet seat mounting bolt insertion hole 18 of the Western style toilet 10.

A movable base 24 is connected to the side surface 12a of the fixed base 12 by links 20 and 22 so as to be able to move up and down. Links 20 and 22 are Western style toilets 1
0 are disposed on both the left and right sides. The link 20 on the front side of the Western-style toilet is shorter in length than the link 22, so that when the links 20, 22 rotate upward, the movable base 24 assumes a forwardly inclined posture.

A toilet seat support plate 26 is provided on the movable base 24, and a toilet seat box 28 on which a toilet seat 30 is pivotably mounted so that the toilet seat 30 can be turned upside down. The toilet seat box 28 and the plate 26 are provided with bolts (not shown) projecting from the lower surface of the toilet seat box 28 by bolt holes 32 and 34 of the plate 26 and the movable base 24.
And fixed to the movable base 24 by tightening the nut.

The plate 26 and the movable base 24 are both substantially U-shaped along the inner hole of the toilet seat 30.

On the upper surface of the plate 26, a convex portion 36 for positioning (preventing forward movement) of the toilet seat box 28 is provided. The upper surface of the distal end portion of the plate 26 is in contact with the lower surface of the toilet seat 30 in a lying posture (a portion of the lower surface of the toilet seat 30 other than the leg portion) to transmit a seating load on the toilet seat 30 to the plate 26. A part 38 is provided.

A warm water cleaning device (not shown) for cleaning the buttocks of a human body with warm water is incorporated in the toilet seat box 28.

On the side surface 12a of the fixed base 12, a stopper 40 for regulating the rotation range of the link 22 is provided. The stopper 40 is in the shape of a long and slender plate, and the tip is a locking portion 40 a bent in an L-shape. The locking portion 40 a can be engaged with the link 22. An L-shaped slit 42 is formed in the rear end of the stopper 40. A pin 44 fixed to the fixed base side surface 12a is inserted through the slit 42.

The airbag 5 is provided on the rear upper surface of the fixed base 12.
The 0 ear 52 is attached by a screw 54.
The airbag 50 has a configuration in which small bags 56 extending in the left-right width direction of the Western-style toilet 10 are stacked so that the insides of the small bags communicate with each other. The ear portion 52 is provided in the small bag 56 at the lowermost stage. A belt 58 is provided in the uppermost small bag 56. The belt 58 is connected to a bar 60 provided on the rear side of the plate 26.

As shown in FIG. 5, compressed air can be introduced from a pump 70 to an air port 62 of the lowermost small bag 56 via an air hose 64, a three-way valve device 66 and an air hose 68.

As shown in FIG. 6, a first port 74 communicating with the pump 70 is provided in a casing 72 of the three-way valve device 66.
And a second port 76 communicating with the airbag 50 and a third port 78 communicating with the outside air.

One end of the casing 72 has a first end.
A hollow portion 80 communicating with the port 74 and having the other end communicating with the second port 76; and a cylindrical portion 84 separated from the hollow portion 80 by a partition wall 82 and protruding from the partition wall 82 toward the hollow portion 80 side. And a tertiary chamber 88 which communicates with the cavity 80 through an inner hole 86.

In this hollow portion 80, a valve body is seated at the tip of the cylindrical portion 84 so as to be detachable, and the outer peripheral portion is a soft portion which can be brought into contact with and separated from the inner surface of the hollow portion 80. 90 are provided. The interior of the cavity 80 is formed by the valve element 90 and the primary chamber 94 on the first port 74 side and the secondary chamber 9 on the second port 76 side.
6 are divided.

When the pump 70 operates, the valve body 90 is actuated by air pressure from the first port 74.
4 and cut off the communication between the second port 76 and the third port 78, and the outer peripheral portion of the valve body 90 is bent toward the secondary chamber 96 and separated from the inner surface of the hollow portion 80. Then, the first port 74 and the second port 76 are communicated. When the pump 70 is stopped, the valve body 90 is separated from the distal end of the cylindrical portion 84 by the residual pressure in the airbag 50 introduced from the second port 76, and the second port 76 and the third port 78 are separated. The communication between the first port 74 and the second port 76 is interrupted by the outer peripheral portion of the valve body 90 being in close contact with the inner surface of the hollow portion 80.

A small hole 100 for communicating the primary chamber 94 with the outside is provided, and a needle valve 102 is provided in the small hole 98.

In the tertiary chamber 88, a baffle plate 104 is provided and a porous material (not shown) such as a sponge is inserted so as to reduce noise at the time of exhaust.

In the toilet seat elevating device for a Western-style toilet constructed as described above, a switch (not shown) is pressed to
0, the airbag 50 is inflated and the toilet seat 30
Rises. The pump 70 is operated for a specified time by a timer, and automatically stops when the timer is up. The discharge port of the pump 70 is provided with a relief valve (not shown).

When the pump 70 operates, air flows only from the first port 74 of the three-way valve device 66 to the second port 76. Since the valve body 90 is in close contact with the cylindrical portion 84, no air flows to the third port.

With the airbag 50 inflated and the toilet seat 30 raised to the upper limit, a person who is about to sit on the toilet seat 30 can easily put his buttocks on the toilet seat 30 simply by bending down a little. In addition, the person who has been sitting on the toilet seat 30 can stand up easily because the waist can be lifted.

When the pump 70 stops after the toilet seat 30 is raised, the valve body 90 is separated from the cylindrical portion 84 by the residual pressure in the airbag 50, and the residual air in the airbag 50 is discharged from the second port 76. The gas is discharged to the atmosphere via the third port 78. (At this time, since the interior of the primary chamber 94 communicates with the atmosphere through the small holes 100 and the interior of the primary chamber 94 is at atmospheric pressure, the valve body 90 As a result, the toilet seat 30 is lowered to the lower limit. Therefore, if a person is sitting on the toilet seat 30, the waist of the person will gradually decrease to the toilet posture while sitting on the toilet seat 30.

As described above, in the toilet seat elevating device, when the pump 70 is stopped, the toilet seat 30 naturally descends without any operation. This toilet seat 30
Is caused by the operation according to the pressure of the three-way valve device 66, and no sensor or electric drive mechanism is required.
Very simple.

Although the above embodiment is of the air-driven type, it may be of a hydraulic type or a hydraulic type, in which case a reservoir tank may be connected to the third port 78.

[0032]

As described above, according to the present invention, the toilet seat can be gradually lowered naturally without using a special sensor or an electric drive mechanism, and the structure is simple, the cost is low, and practicality is reduced. An excellent toilet seat elevating device is provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a Western style toilet provided with a toilet seat elevating device according to an embodiment, where (a) shows the toilet seat when it is lowered, and (b) shows the toilet seat when it is raised.

FIG. 2 is a side view of the Western-style toilet of FIG. 1 when the toilet is raised.

FIG. 3 is an exploded perspective view of a main part of the toilet seat elevating device.

FIG. 4 is an exploded perspective view of a main part of the toilet seat elevating device.

FIG. 5 is an overall system diagram of the toilet seat lifting device.

FIG. 6 is a sectional view of a three-way valve device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Western-style toilet bowl 12 Fixed base 20,22 link 24 Movable base 26 Toilet seat support plate 28 Toilet seat box 30 Toilet seat 40 Stopper 50 Airbag 66 Three-way valve device 74 First port 76 Second port 78 Third port 80 Cavity part 82 Partition wall 84 Cylindrical body 88 Tertiary chamber 90 Valve element 94 Primary chamber 96 Secondary chamber

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mikihiko Morimoto 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture Inside of Morten Co., Ltd. (72) Inventor Hideto Tamai 1-8 Yokokawa Shinmachi, Nishi-ku, Hiroshima City, Hiroshima Prefecture (56) References JP-A-63-111827 (JP, A) JP-A-8-196475 (JP, A) JP-A-8-266447 (JP, A) JP-A-9-94184 (JP, A) JP-A-9-51862 (JP, A) JP-A 7-24322 (JP, U) JP-A 64-19424 (JP, U) JP-A 64-15599 (JP, U) JP-A 63-144097 (JP, U) Japanese Utility Model Showa 63-167999 (JP, U) Japanese Patent Publication No. 6-61350 (JP, B2) Registered Utility Model 3007794 (JP, U) International Publication 89/8437 (WO, A1) ( 58) Surveyed field (Int.Cl. ⁷ , DB name) A47K 13/10

Claims (3)

(57) [Claims] 1. A toilet seat lifting / lowering device comprising: a bag for pushing up a toilet seat; a pressure source for feeding a fluid into the bag to inflate the bag; and a flow path communicating the bag with the pressure source. A three-way valve device having a first port communicating with the pressure source, a second port communicating with the bag, and a third port for releasing fluid from the second port is provided in the middle of the path, A three-way valve device for transmitting a pressurized fluid from the pressure source from a first port to a second port and preventing a reverse flow of the fluid from the second port to the first port; When the pressurized fluid is supplied from the pressure source, the pressurized fluid pressure moves to the second port side to cut off the communication between the second port and the third port. Transfer to the first port side due to residual pressure in the bag Toilet seat lifting apparatus and the second port and the switching unit of the pressure-responsive type for communicating the third port, characterized in that it comprises a by. 2. The three-way valve device according to claim 1,
A hollow portion having one end communicating with the first port and the other end communicating with the second port; a hollow portion separated from the hollow portion by a partition wall and projecting from the partition wall toward the hollow portion; A tertiary chamber that communicates with the cavity through the hole, and is separably seated at the distal end of the cylindrical portion, and an outer peripheral portion is a soft portion that can contact and separate from the inner surface of the cavity. A valve body, wherein the interior of the cavity is partitioned into a primary chamber on the first port side and a secondary chamber on the second port side by the valve body, and the valve body is configured to be operated when the pressure source is operated. The fluid pressure from the first port seats on the distal end of the cylindrical portion to cut off communication between the second port and the third port, and the outer peripheral portion of the valve body bends toward the secondary chamber to form the cavity. The first port and the second port communicate with each other away from the inner surface of the portion, and when the pressure source is stopped,
The second port and the third port are separated from the tip of the cylindrical portion by the residual pressure in the bag introduced from the second port to communicate with the second port, and the outer peripheral portion of the valve body is in close contact with the inner surface of the hollow portion A toilet port elevating device, wherein communication between the first port and the second port is interrupted. 3. The toilet seat elevating device according to claim 2, wherein a muffling member is provided in the tertiary chamber.