JPH09201311A - Toilet seat lifting device - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a toilet seat lifting device for automatically raising a raised seat without any special operation. This toilet seat descent operation,
Only a comparatively simple mechanical structure is used without using a special automatic control device. SOLUTION: When a pump 70 is operated, an airbag 50 inflates and a toilet seat 30 rises. When the pump 70 is operating, the air flows only from the first port 74 to the second port 76 of the three-way valve device 66. When the pump 70 stops after the toilet seat 30 rises, the residual pressure in the airbag 50 causes the valve body 90 to separate from the tubular portion 84, and the residual air in the airbag 50 moves from the second port 76 to the third port. 78
It is discharged to the atmosphere via As a result, the toilet seat 30 descends to the lower limit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet seat raising / lowering device, and more particularly to a toilet seat raising / lowering device for supplying a fluid such as air to the bag to inflate the bag and thereby lifting the toilet seat.

[0002]

2. Description of the Related Art A toilet seat lifting device for supplying a fluid into a bag to lift a toilet seat is disclosed in Japanese Utility Model Laid-Open Publication No. 1-15599.
It is publicly known from, for example, Japanese Utility Model Publication No. 7-24322, Utility Model Registration Publication No. 3007774, and the like.

[0003]

In the above conventional toilet seat lifting device, in order to discharge the fluid from the inside of the bag and lower the toilet seat, it is necessary to operate the valve to communicate the inside of the bag to the outside. is there. Therefore, for users who are not familiar with how to use it, they cannot lower the toilet seat,
There may be a situation where the toilet seat cannot be used in a normal (lowered) state.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a toilet seat raising / lowering device in which a raised toilet seat automatically descends without any special operation.

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

[0006]

A toilet seat lifting device according to the present invention comprises a bag for pushing up the toilet seat, a pressure source for inflating the bag by sending fluid into the bag, and a flow for connecting the bag and the pressure source. In a toilet seat lifting device having a passage, a first port communicating with a pressure source, a second port communicating with the bag, and a third port for releasing fluid from the second port in the middle of the flow passage. And a three-way valve device having a first pressurized fluid from the pressure source.
A toilet seat push-up check unit that transmits the fluid from the port to the second port and prevents the reverse flow of the fluid from the second port to the first port; and the second port by the pressurized fluid pressure when the pressurized fluid is supplied from the pressure source. To the first port side due to the residual pressure in the bag when the supply of the pressurized fluid from the pressure source is stopped. A pressure-responsive switching unit that connects the second port and the third port to each other is provided.

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

This three-way valve device is separated from the cavity by a cavity and a cavity having one end communicating with the first port and the other end communicating with the second port, and from the partition to the cavity side. A tertiary chamber that communicates with the hollow portion through an inner hole of the protruding tubular portion and a distal end of the tubular portion are detachably seated, and the outer peripheral portion contacts the inner surface of the hollow portion. A valve body that is a separable soft portion, and the inside of the cavity is partitioned by the valve body into a primary chamber on the side of the first port and a secondary chamber on the side of the second port. When the pressure source is in operation, the fluid pressure from the first port is seated on the tip of the tubular portion to block the communication between the second port and the third port, and the outer peripheral portion of the valve body is When the pressure source is stopped, the first port and the second port communicate with each other by bending toward the secondary chamber side and separating from the inner surface of the cavity. 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 valve body, and the outer peripheral portion of the valve body comes into close contact with the inner surface of the cavity to block the communication between the first port and the second port.

By providing a sound deadening member in the tertiary chamber, noise when the 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 bowl 10 equipped with a toilet seat lifting device according to the embodiment, FIG. 2 is a side view thereof, and FIGS. 3 and 4 are exploded perspective views thereof. The figure is an overall configuration diagram, and FIG. 6 is a sectional view of a three-way valve device. Note that the illustration of the toilet seat support plate is omitted in FIG.

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

A movable base 24 is movably connected to the side surface 12a of the fixed base 12 by links 20, 22. Links 20 and 22 are Western-style toilets 1
It is arranged on both left and right sides of 0. The link 20 on the front side of the Western-style toilet has a shorter length than the link 22. Therefore, when the links 20 and 22 rotate upward, the movable base 24 takes a forward tilted posture.

A toilet seat support plate 26 is installed on the movable base 24, and a toilet seat box 28 on which a toilet seat 30 is pivotally mounted so as to be tilted up and down is installed on the plate 26. The toilet seat box 28 and the plate 26 have bolts (not shown) projecting from the lower surface of the toilet seat box 28 and bolt holes 32, 34 of the plate 26 and the movable base 24.
It is fixed to the movable base 24 by passing it through and 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.

A convex portion 36 for positioning (preventing forward movement) of the toilet seat box 28 is provided on the upper surface of the plate 26. The upper surface of the tip portion of the plate 26 is in contact with the lower surface of the toilet seat 30 in the lying position (a portion of the lower surface of the toilet seat 30 other than the legs), and is a protrusion for transmitting the seating load on the toilet seat 30 to the plate 26. A section 38 is provided.

A hot water washing device (not shown) for washing the human buttocks with hot water is incorporated in the toilet seat box 28.

A stopper 40 is provided on the side surface 12a of the fixed base 12 to regulate the range of rotation of the link 22. The stopper 40 is in the form of an elongated plate, and has a locking portion 40a bent at an end in an L shape, and the locking portion 40a can be engaged with the link 22. An L-shaped slit 42 is formed at the rear end of the stopper 40. A pin 44 fixed to the fixed base side surface 12a is inserted into the slit 42.

The airbag 5 is provided on the rear upper surface of the fixed base 12.
0 ears 52 are attached by screws 54.
The airbag 50 has a structure 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 on the lowermost small bag 56. A belt 58 is provided on the uppermost small bag 56. The belt 58 is tied to a bar 60 provided on the rear side of the plate 26.

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

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

Inside the casing 72, one end side is first
A hollow portion 80, which is communicated with the port 74 and has the other end thereof communicated with the second port 76, is separated from the hollow portion 80 by a partition wall 82, and a cylindrical portion 84 protruding from the partition wall 82 toward the hollow portion 80. And a tertiary chamber 88 that communicates with the cavity 80 through the inner hole 86.

A valve body is seated inside the hollow portion 80 so as to be separable at the tip of the tubular portion 84, and the outer peripheral portion is a soft portion that can be brought into contact with and separated from the inner surface of the hollow portion 80. 90 is provided. The valve body 90 allows the interior of the cavity 80 to have a primary chamber 94 on the first port 74 side and a secondary chamber 9 on the second port 76 side.
It is divided into 6 and 6.

When the pump 70 is in operation, the valve body 90 is acted upon by the air pressure from the first port 74 to cause the tubular portion 8 to move.
4 is seated at the front end of the valve 4 to block 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 side and separated from the inner surface of the cavity 80. Then, the first port 74 and the second port 76 are connected. Further, when the pump 70 is stopped, the valve body 90 is separated from the tip of the tubular portion 84 by the residual pressure in the airbag 50 introduced from the second port 76, so that the second port 76 and the third port 78 are separated from each other. The valve body 90 is made to communicate with each other, and the outer peripheral portion of the valve body 90 is in close contact with the inner surface of the hollow portion 80 to block the communication between the first port 74 and the second port 76.

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

A baffle plate 104 is provided in the tertiary chamber 88, and a porous material (not shown) such as a sponge is inserted to reduce noise during exhaust.

In the toilet seat lifting device for a Western-style toilet constructed as described above, a pump (not shown) is pushed to push the pump 7.
When 0 is operated, the airbag 50 is inflated and the toilet seat 30
Rises. The pump 70 is operated by a timer for a specified time, and automatically stops when the timer is up. A relief valve (not shown) is provided at the discharge port of the pump 70.

When the pump 70 is in operation, air flows only from the first port 74 to the second port 76 of the three-way valve device 66. Air does not flow to the third port because the valve body 90 is in close contact with the tubular portion 84.

Since the airbag 50 is inflated and the toilet seat 30 is raised to the upper limit, a person who is about to sit on the toilet seat 30 can easily put the buttocks on the toilet seat 30 by bending down a little. Further, the person who has been sitting on the toilet seat 30 can lift up his / her waist so that he / she can easily stand up.

When the pump 70 stops after the toilet seat 30 rises, the valve body 90 is separated from the tubular 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. It is discharged to the atmosphere through the third port 78. (At this time, since the inside of the primary chamber 94 communicates with the atmosphere through the small hole 100 and the inside of the primary chamber 94 is at the atmospheric pressure, the valve body 90 has a residual pressure in the airbag 50. 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 is gradually lowered to the toilet posture while sitting on the toilet seat 30.

As described above, in this toilet seat lifting device, when the pump 70 is stopped, the toilet seat 30 naturally descends gradually without any operation. This toilet seat 30
Is due to the operation according to the pressure of the three-way valve device 66, and no sensor or electric drive mechanism is required.
It's extremely simple.

Although the above-mentioned embodiment is of air drive type, it may be of hydraulic drive type or water pressure drive type. In this 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 and the cost is low. An excellent toilet seat lifting device is provided.

[Brief description of drawings]

FIG. 1 is a perspective view of a Western-style toilet equipped with a toilet seat lifting device according to an embodiment, (a) showing a toilet seat descending and (b) showing a toilet seat rising.

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

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

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

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

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

[Explanation of symbols]

 10 Western-style toilet 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 82 Partition wall 84 Cylindrical body 88 3rd chamber 90 Valve body 94 1st chamber 96 2nd chamber

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikihiko Morimoto 1-8 Yokokawa-shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Molten (72) Inventor Hideto Tamai 1-8 Yokokawa-shinmachi, Nishi-ku, Hiroshima-shi, Hiroshima In the molten

Claims (3)

[Claims] 1. A toilet seat lifting device including a bag for pushing up a toilet seat, a pressure source for inflating the bag by sending a fluid to the bag, and a flow path for connecting the bag and the pressure source to each other. 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 passage, The three-way valve device transmits a pressurized fluid from the pressure source to the second port from the first port, and prevents a backflow of the fluid from the second port to the first port; When the pressurized fluid from the pressure source is supplied, the fluid moves to the second port side due to the pressurized fluid pressure to block the communication between the second port and the third port, and when the pressurized fluid supply from the pressure source is stopped, Transferred to the 1st 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; and a cylindrical portion separated from the hollow portion by a partition wall and projecting from the partition wall toward the hollow portion. A tertiary chamber communicating with the cavity through a hole is seated on the distal end of the tubular portion so as to be separable, and an outer peripheral portion is a soft portion that can be brought into contact with and separated from the inner surface of the cavity. A valve body, and the interior of the cavity is partitioned by the valve body into a primary chamber on the side of the first port and a secondary chamber on the side of the second port, and the valve body, when operating the pressure source, The fluid pressure from the first port seats on the tip of the tubular portion to block the communication between the second port and the third port, and the outer peripheral portion of the valve element bends toward the secondary chamber to cause the cavity. When the pressure source is stopped, the first port and the second port are communicated with each other by separating from the inner surface of the section.
The residual pressure in the bag introduced from the second port causes the second port and the third port to communicate with each other by separating from the distal end of the tubular portion, and the outer peripheral portion of the valve element is in close contact with the inner surface of the hollow portion. And, the toilet seat lifting device is characterized in that the communication between the first port and the second port is blocked. 3. The toilet seat lifting device according to claim 2, wherein a sound deadening member is provided in the tertiary chamber.