JP2004113658A - Bath - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bath in which a caregiver can easily put in and out a bathing person and personnel expenditure when washing the body can be resolved by a simple mechanism. <P>SOLUTION: A box-shaped outside tub 1 opened on the upper part side and an approximately tetrahedral inner tub, in which the upper part as well as the front part side are opened as a port for the bathing person, are included, a lift drive mechanism 3, which raises the inner tub 2 from the inside bottom of the outside tub 1 to the inside upper part of the tub or lowers the inner tub from the inside upper part to the inside bottom of the tub, and a forward-backward drive mechanism 4, which advances the inner tub 2 until the front bottom of the inner tub 2 located in the upper part of the outside tub 1 is built over to a front flange 10a of the outside tub 1 or retreats the inner tub from the forward position to the inside upper part of the outside tub 1, are attached between the tubs . <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bathtub mainly used for bathing of a care recipient.
[0002]
[Prior art]
The existing bathtub is formed in a box shape having a predetermined height with an upper part opened as an entrance for a bather. In the bathtub, when taking care of a person who needs care such as an elderly person or a disabled person (hereinafter simply referred to as “bather”), the caregiver holds the bather and puts it in the bathtub and takes it out of the bathtub That has become hard work.
[0003]
Conventionally, in order to use the bathtub, an opening / closing door is attached to the front wall of the bathtub so as to be freely accessible (Patent Document 1). At the upper end formed lower (Patent Literature 2), with a raising / lowering drive mechanism for moving a bather between a bathtub and a washing place (Patent Literature 3), and a two-layer front wall of the bathtub A device that separates and adjusts the height of a front wall according to a bather (Patent Document 4) has been proposed.
[0004]
[Patent Document 1]
JP-A-3-26221 [Patent Document 2]
Japanese Patent Application Laid-Open No. 7-241251 [Patent Document 3]
JP-A-10-328263 [Patent Document 4]
JP-A-11-76351
In the proposed bath tub, first warm the body, then wash the body, and then bathe again to warm the body. However, the effort to go in and out with bathers cannot be saved. In addition, it is generally complicated mechanically and large in equipment.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide a bathtub which is mainly used for bathing a care recipient, and in which a nursing work such as a caregiver holding a bather in and out of the bathtub can be omitted with a simple mechanism.
[0007]
In addition, an object of the present invention is to provide a bathtub that is easy for a caregiver to perform a care work such as washing out the body of the care recipient.
[0008]
In addition, another object of the present invention is to provide a bathtub which can be operated mechanically stably and smoothly, and which is easy to maintain equipment such as maintenance and inspection.
[0009]
[Means for Solving the Problems]
The bathtub according to claim 1 of the present invention includes a box-shaped outer tub whose upper side is open, and a substantially tetrahedral inner tub whose upper and front sides are open as entrances for bathers. An up-down drive mechanism that moves the inner tank up or down from the tank bottom to the tank top and moves the inner tank down from the tank top to the tank bottom, and removes the front bottom of the inner tank located at the top of the outer tank. It is constituted by assembling between the tanks an advancing / retracting drive mechanism for moving the inner tank forward until it is bridged over the front flange of the tank or retreating the inner tank from the advance position to the upper part of the outer tank in the tank.
[0010]
In the bathtub according to claim 2 of the present invention, a first reversible motor having a rotating drum is provided on a rear flange of the outer tub, and a plurality of suspending wires are divided into relative positions on the circumference of the rotating drum of the reversible motor. Each one wire end is connected at a time, and the relative suspended wire is pulled out separately on the left and right sides of the rear flange, and the wires are guided from the side flanges to the inside of the outer tank from the side flanges via pulleys. This suspend wire is connected to the side bottom of the inner tank with equal balance in the right and left at the other wire ends, and the inner tank is connected to the outer tank by winding or rewinding the suspend wire by turning the first reversible motor. It is configured by assembling a lifting drive mechanism that moves up and down in the tank.
[0011]
The bathtub according to claim 3 of the present invention is provided with an undertray for receiving and placing the inner tub, a suspend wire drawn from the first reversible motor is connected to the undertray at a wire end, and the inner tub is connected to the undertray. It is configured to be mounted and mounted so as to be able to move up or down in the outer tank.
[0012]
The bathtub according to claim 4 of the present invention is provided with left and right slide plates movable in the front-rear direction along side flanges of the outer tub, and engages with the upward movement of the inner tub, and A connection plate that engages and disengages with the downward movement of the inner tank is disposed between the side bottom of the inner tank and the slide plate,
A second reversible motor having a rotating drum is provided on the rear flange of the outer tub, and one suspend wire is displaced by a distance equivalent to the moving stroke of the slide plate and is wrapped around the circumference of the rotating drum so as to be movable. Guide the wiring from the left and right side flanges to the rear flange by turning it at the left and right front corners of the outer tank, and slide the different strips inside and outside the suspended wire turning from the left and right front corners of the outer tank. It is constructed by assembling an advance / retreat drive mechanism that moves the inner tank located above the outer tank with the slide plate forward or backward by sliding the suspending wire due to the rotation of the second reversible motor. Have been.
[0013]
In the bathtub according to claim 5 of the present invention, at least a pair of front and rear wheels are attached to at least the left and right sides of the outer bottom surface of the inner tub, and guide rails for running the respective wheels are laid on the under tray, and are positioned above the outer tub. The inner tub is provided so as to be able to move forward or backward with wheels along the guide rail.
[0014]
In the bathtub according to claim 6 of the present invention, the rear side is inclined uphill toward the forward direction of the inner tub, and the underrail is provided with a guide rail with the front side inclined downhill. At the position, it is configured to be able to receive and install by the front flange of the outer tub on the front descent.
[0015]
In the bathtub according to claim 7 of the present invention, semicircular grooves for receiving and locking the wheels are provided near the rear and front portions of the guide rail, and the inner bath is moved forward and forward in the outer bath. It is configured by being provided so that positioning can be stopped at the retracted position.
[0016]
In the bathtub according to claim 8 of the present invention, a stopper that engages at the forward position of the inner bath and disengages with the retreat of the inner bath is provided between the front bottom of the inner bath and the front flange of the outer bath. It is constituted by being provided between.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Referring to the accompanying drawings, a bathtub according to the illustrated embodiment has a horizontally elongated outer tank 1 having an open upper side as shown in FIGS. 1 and 2, and a bath at the upper and front sides. A tank having a substantially tetrahedral inner tank 2 opened as an entrance for a person and an under tray 3 for receiving and placing the inner tank 2 as a tank base, and the inner tank 2 is a tank of the outer tank 1 based on the under tray 3 The inner tank 2 located above the outer tank 1 can be moved up and down.
[0018]
The outer tank 1 is provided with an overhang flange 10 provided around the open side circumference. The overhanging flange 10 is applied as a mounting base of each mechanism described later by reinforcing it with a frame plate 11 made of an angle member having an L-shaped cross section. The under tray 3 is provided in a substantially quadrangular plate frame shape corresponding to the bottom area of the inner tank 2 (see the dotted line in FIG. 1) in order to maintain rigidity and reduce the weight. I have.
[0019]
Using the frame plate 11 of the outer tank 1 as a mounting base, the entire inner tank 2 including the under tray 3 is moved upward from the inner bottom of the outer tank 1 to the upper part of the inner tank or from the upper part of the outer tank to the inner bottom of the tank. An elevating drive mechanism 4 that moves down is assembled. Further, the inner tank 2 is moved forward until the front bottom of the inner tank 2 located at the upper part of the outer tank 1 is bridged over the front flange 10a of the outer tank 1, or the inner tank 2 is moved back from the advanced position to the upper part of the outer layer 1 in the tank. The reciprocating drive mechanism 5 is assembled. Each of the mechanisms 4 and 5 is assembled with left and right common members (hereinafter, common members are indicated with “′” attached to one side) with a reversible motor described later as a base point.
[0020]
The lifting drive mechanism 4 includes a first reversible motor 40 having a rotating drum 40a attached to a motor shaft 40b on a rear flange 10b of the outer tub 1 and has one wire end wired to the left and right from the disposition position of the reversible motor 40. It is assembled with about two suspended wires 41a, 41b, 41a ', 41b' for connecting to the rotating drum 40a of the reversible motor 40 and connecting the other wire end to the under tray 3. As the suspend wires 41a, 41b, 41a ', 41b', a torsion wire of a thin metal wire having excellent tensile rigidity can be used.
[0021]
The suspending wires 41a, 41b, 41a ', 41b' should be connected to the rotating drum 40a of the reversible motor 40 at a relative position on the circumference in units of left and right as shown in FIG. The wire is pulled out to the left and right of the rear flange 10 and is wired toward the side flanges 10c and 10d on both sides via pulleys 42 and 42 'provided at the rear left and right corners of the outer tub 1. The pulleys 42 and 42 'are provided with a two-stage wire receiving groove or a longitudinal type having three-stage wire receiving grooves including a suspending wire of an advance / retreat driving mechanism described later.
[0022]
The suspended wires 41a, 41b, 41a ', 41b' are respectively guided from the side flanges 11, 12 toward the inside of the outer tank 1 by the respective horizontal axis pulleys 43a, 43b, 43a ', 43b'. The wiring is connected to the under tray 3 at the other wire end while maintaining the left and right equal balance by wiring (see FIG. 2). Thereby, the suspend wires 41a, 41b, 41a ', 41b' are assembled to the reversible motor 40 so that when the rotating drum 40a rotates forward or backward, the left and right sides are simultaneously wound or unwound by the rotating drum 40a. I have.
[0023]
Left and right slide plates 50, 50 'movable in the front-rear direction are provided on the side flanges 10c, 10d of the outer tank 1 in order to provide the advance / retreat drive mechanism 5 for the inner tank 2 (see FIG. 1). As the slide plates 50, 50 ', a pair of long holes 50a, 50b, 50a', 50b 'extending in the front-rear direction of the outer tank 1 are provided on the plate surface, and as shown in FIG. An inverted L-shaped cross section is provided.
[0024]
The slide plates 50, 50 'are placed on the plate surfaces of base plates 44, 44' serving as installation bases for the pulleys 43a, 43b, 43a ', 43b'. In addition, slide guides can be provided by inserting support pins 44a, 44b, 44a ', 44b' planted on the plate surfaces of the base plates 44, 44 'into the slots 50a, 50b, 50a', 50b '. Installed.
[0025]
A connection between the slide plates 50, 50 ′ and the bottom of the side of the inner tank 2 that engages with the upward movement of the inner tank 2 and engages and disengages with the downward movement of the inner tank 2. Plates 51, 52, 51 ', 52' are provided. As shown in FIG. 4 (only one is shown), the connection plates 51, 52, 51 ′, and 52 ′ are formed by mounting a bracket plate 51 b provided with planting pins 51 a on the plate surface from the bottom of the side of the inner tank 2. And a bracket plate 51d provided with a receiving hole 51c on the plate surface is mounted to protrude inward from the slide plate 50, and the planting pin 51a and the receiving hole 51c are engaged with the ascending movement of the inner tank 2. They are attached so that they are integrated.
[0026]
The slide tanks 50, 50 'and the connection plates 51, 52, 51', 52 'are provided, and the inner tank advance / retreat drive mechanism 5 has a rotary drum 53a attached to a motor shaft 53b as shown in FIG. The reversible motor 53 is provided on the rear flange 10b of the outer tub 1 and is assembled by inductively wiring one suspend wire 54 from the rear flange 10b to the left and right side flanges 10c and 10d. As the suspend wire 54, a torsion wire of a thin metal wire having the same excellent tensile rigidity as the above-described suspend wires 41a, 41b, 41a ', 41b' can be used.
[0027]
The suspending wire 54 has its ends fixed to the same position on the rotating drum 53a, and the rotating drum 54a can be alternately displaced from the end of each wire by the moving stroke of the slide plates 50, 50 '. It is wound right and left around the circumference of 53a. In addition, the outer tub 1 is guided to the left and right side flanges 10c, 10d from the rear left and right corners of the outer tub 1 via vertical pulleys 55, 55 ', and the outer tub 1 is connected via the vertical pulleys 56, 56'. Are wired from the left and right front corners, and are guided from the left and right side flanges 10c and 10d to the rear flange 10b by also using the above-described pulleys 42 and 42 '.
[0028]
The suspend wires 54 are guided from the left and right corners of the outer tub 1 to the side flanges 10c and 10d, and are turned from the left and right front corners of the outer tub 1 to be wired to the left and right side flanges 10c and 10d. Of the line portions 54b, 54c, 54b ', 54c', the inner and outer different line portions 54c, 54b 'are divided into left and right slide plates 50, 50' and fastened by holding bolts 45, 45 '. The left and right slide plates 50, 50 'are connected in synchronization with each other by the rotation of the reversible motor 53 so as to move in the front-rear direction.
[0029]
As shown in FIG. 1, at least a pair of front and rear wheels 6a, 6b, 6a ', and 6b' are used for the inner tank 2 so that the inner tank 2 can be smoothly advanced or retracted in the front-rear direction at the upper position of the outer tank 1. And a pair of front and rear guide rails 7a, 7b, 7a ', 7b' for running on the wheels 6a, 6b, 6a ', 6b' are laid on the under tray 3 to guide rails. The wheels 6a, 6b, 6a ', 6b' are provided so as to be able to travel along the wheels 7a, 7b, 7a ', 7b'.
[0030]
As shown in FIG. 4 (only one is shown), large-diameter retaining flanges 60 and 61 are attached to the left and right sides of the roller body 62 so that the traveling motion by the wheels 6a, 6b, 6a 'and 6b' of the inner tank 2 can be performed stably. Is provided. Further, a guide rail 7a provided with a rail portion 70 with which the roller body 62 contacts and with step portions 71, 72 with which the stopper flanges 60, 61 contact is provided. The pair of wheels and guide rails can be increased so that one pair is further disposed at the center position, and the design of the guide rails can be changed so that the front and rear pairs are laid on one lane.
[0031]
As shown in FIG. 2 (only one pair is shown), as the guide rails 7a and 7b, those 7a which are inclined upward in the forward direction of the inner tub 2 are arranged on the rear side and the front side. Is provided with a slope 7b inclined downward. Thereby, the inner tank 2 is provided so as to be able to be received and installed by the front flange 10a of the outer tank 1 at the forward position at the forward position.
[0032]
As shown in FIG. 6 (only one is shown), the guide rails 7a and 7b are provided with semicircular concave grooves 73a and 73b for receiving and locking the wheel 6a near the rear and the front. Thus, the inner tank 2 is provided so as to be capable of positioning and stopping not only when it is positioned in the tank of the outer tank 1 but also when it moves forward or backward on the upper side of the outer tank 1.
[0033]
In addition, a stopper 8 is engaged between the front bottom of the inner tub 2 and the front flange 10a of the outer tub 1 at the forward position of the inner tub 2 and is disengaged with the retreat of the inner tub 2. , 8 'are provided at least on the left and right. As shown in FIG. 7 (only one is shown), the stoppers 8 and 8 'are dowel projections 8a provided on the front bottom of the inner tub 2 and dowels 8b provided on the front flange 10a of the outer tub 1. It is equipped with one that fits into the hole.
[0034]
The water stopcock 12 is provided on the bottom of the outer tub 1 like a normal bathtub as shown in FIG. Each mechanism is provided so as to be housed in an upper cover 9a (see a dotted line in the first example) which covers the side flanges 10c and 10d from the rear flange 10b of the outer tank 1. An operation panel 9b with operation buttons for driving or stopping the first and second reversible motors 40 and 53 (see the dotted line in the first example) is provided at one front portion of the upper cover 9a.
[0035]
In addition, a slit-like access hole (not shown) for reducing resistance due to hot water is provided at the bottom corner of the inner tank 2. Further, the reversible motors 40 and 53 are provided so as to be able to operate or stop by application of a stepping motor or the like or a predetermined circuit design.
[0036]
In the bathtub configured as described above, when the first reversible motor 40 is operated by operating the button on the operation panel 9b, the rotating drum 40a winds up the suspend wires 41a, 41b, 41a ', and 41b', and as shown in FIG. As shown, the inner tank 2 is raised to the upper part of the outer tank 1 and stopped at a predetermined upper position. As the inner tank 2 moves upward, the planting pins 51a of the bracket plate 51b fit into the receiving holes 51c of the bracket plate 51d as shown in FIG. And 50 are integrally combined by a connection plate 51.
[0037]
During the ascent, the wheels 6a, 6b, 6a ', 6b' are received and locked by semicircular concave grooves 73a, 73b provided near the rear and front of the guide rails 7a, 7b. 2 is positioned and stopped stably in the outer tank 1.
[0038]
When the second reversible motor 53 is operated by another button operation after the inner tank 2 is raised, the rotating drum 53a shifts the suspend wire 54, thereby synchronizing the left and right slide plates 50, 50 'to move forward. Move the slide. Due to the sliding movement of the slide plates 50, 50 ', the inner tank 2 moves forward until the front bottom is put on the front flange 10a of the outer tank 1 as shown in FIG.
[0039]
At the forward position of the inner tank 2, the rear guide rail 7a is inclined upward in the forward direction of the inner tank 2, and the front slide rail 7b is inclined downward in the forward direction of the inner tank 2, as shown in FIG. Therefore, the inner tank 2 is received and installed by the front flange 10a of the outer tank 1 at the forward position at the forward position at the forward position.
[0040]
At the same time, the wheels 6a, 6b, 6a ', 6b' are received and locked by semicircular concave grooves 73a, 73b provided near the rear and front of the guide rails 7a, 7b. Since the dowel projection 8a provided on the front bottom is fitted with the dowel hole of the receiving seat 8b provided on the front flange 10a of the outer tub 1, the inner tub 2 is stably installed on the front flange 10a of the outer tub 1. Is done.
[0041]
When the inner tub 2 is raised and advanced, the caregiver can take the bather in and out of the inner tub 2 while keeping the bather in a substantially standing posture as shown in FIG. Rinse your body up to. At this time, the washing water is received and installed by the front flange 10a of the outer tub 1 at the forward position of the inner tub 2 at the forward position, so that it can be poured out into a normal washing place and prevented from entering the inside of the outer tub 1.
[0042]
In bathing, first, warm the body, then wash the body, and then bathe again so as to warm the body, once the bather is put on the inner tub 2 as described above, first warm the body Then, the inner tub 2 may be retracted and lowered by being driven in reverse order from the second reversible motor 53 to the first reversible motor 40, and if the inner tub 2 is raised as described above, This can be performed inside the inner tub 2 without having to go to the washing place. This saves the caregiver from having to take the bather in and out.
[0043]
In maintenance and inspection including washing of the inside of the tank, the inner tank 2 is merely placed on the under tray 3. Therefore, if the upper cover 9 a is removed, the inner tank 2 can be taken out and the under tray 3 is included. The inside of the outer tub 1 can be easily maintained and inspected.
[0044]
In the above-described embodiment, the care recipient is mainly described. However, if a person takes a bath with the inner tub 2 lowered, an ordinary person can also use the care recipient in an ordinary household.
[0045]
【The invention's effect】
As described above, according to the bathtub according to claim 1 of the present invention, a box-shaped outer tank whose upper side is opened, and a substantially tetrahedral inner tank whose upper and front sides are opened as doors for bathers. A lifting drive mechanism for moving the inner tank upward from the bottom of the outer tank to the upper part of the tank or moving the inner tank downward from the upper part of the tank to the inner part of the tank, and an inner tank located at the upper part of the outer tank By moving the inner tank forward until the front bottom of the outer tank is bridged over the front flange of the outer tank or assembling between the tanks with an advance / retreat drive mechanism for retracting the inner tank from the advanced position to the upper part of the outer tank. It can be configured so as to be used for bathing of a care recipient, and a care mechanism such as a caregiver holding and taking a bather in and out of the bathtub can be omitted with a simple mechanism.
[0046]
According to the bathtub according to the second aspect of the present invention, the first reversible motor having the rotating drum is provided on the rear flange of the outer tub, and the suspending wire is wound or unwound by the rotation of the reversible motor. In order to assemble an elevating drive mechanism that moves the tank up or down in the outer tank, the inner tank can be configured to move up or down by a simple mechanism.
[0047]
According to the bathtub according to the third aspect of the present invention, the undertub is provided with an under tray for receiving and placing the inner bath, a suspending wire drawn from the first reversible motor is connected to the under tray at a wire end, and the inner bath is under lowered. By mounting it on a tray so that it can move up and down in the outer tank, the inner tank can be easily taken out and the maintenance and inspection of each mechanism attached to the outer tank including the under tray can be easily performed. It can be configured to:
[0048]
According to the bathtub according to claim 4 of the present invention, the bathtub includes left and right slide plates movable in the front-rear direction along the side flanges of the outer bath, and engages with the upward movement of the inner bath, and A connecting plate that engages and disengages with the downward movement of the inner tank is disposed between the side bottom of the inner tank and the slide plate, and a second reversible motor having a rotating drum is provided on a rear flange of the outer tank. One suspending wire is displaced by an amount corresponding to the moving stroke of the slide plate and is wound around the circumference of the rotating drum so as to be displaceable, and is positioned at the upper part of the outer tank by the displacing movement of the suspending wire due to the rotation of the second reversible motor. Since the reciprocating drive mechanism for moving the inner tank forward or backward with the slide plate is assembled, the inner tank can be configured to move forward or backward with a simple mechanism.
[0049]
According to the bathtub according to claim 5 of the present invention, at least a pair of front and rear wheels are attached to at least left and right of the outer bottom surface of the inner tub, and guide rails for running the respective wheels are laid on the under tray, and Is provided so as to be able to advance or retreat with wheels along the guide rail, so that the inner tank can be smoothly advanced or retracted.
[0050]
According to the bathtub according to claim 6 of the present invention, a guide rail having a rear side inclined upward and a front side inclined downward is provided on the under tray in the forward direction of the inner tank. In the forward position, the front side of the outer tub can be received and installed by the front flange of the outer tub so that the bather can be easily taken in and out of the inner tub, and the hot water can be reliably poured into the washing place.
[0051]
According to the bathtub according to claim 7 of the present invention, since the semicircular grooves for receiving and locking the wheels are provided near the rear and front portions of the guide rail, the inner bath is arranged inside the inner bath. It can be configured to surely stop positioning at the forward or backward position.
[0052]
According to the bathtub according to claim 8 of the present invention, the stopper which engages at the forward position of the inner tank and disengages with the retreat of the inner tank is provided at the front bottom of the inner tank and the front part of the outer tank. By providing the inner tank with the flange, the inner tank can be stably installed at the forward position.
[Brief description of the drawings]
FIG. 1 is a plan view showing a bathtub according to the present invention.
FIG. 2 is a side sectional view showing the bathtub of FIG.
FIG. 3 is a plan view mainly showing an elevation drive mechanism of an inner tub provided in the bath tub of FIG. 1;
FIG. 4 is a side sectional view mainly showing a connecting plate provided in the bathtub of FIG. 1;
FIG. 5 is a plan view mainly showing an advance / retreat driving mechanism of an inner tub provided in the bath tub of FIG. 1;
FIG. 6 is a side view mainly showing a guide rail provided in the bathtub of FIG. 1;
FIG. 7 is a side view mainly showing a stopper provided in the bathtub of FIG. 1;
FIG. 8 is a side sectional view showing the bathtub of FIG. 1 in a state where an inner tub is raised.
FIG. 9 is a side sectional view showing the connecting plate of FIG. 4 in an engaged state.
FIG. 10 is a plan view showing the bathtub of FIG. 1 in an advanced state of an inner bath.
FIG. 11 is a side sectional view showing the bathtub of FIG. 1 in an advanced state of an inner bath.
FIG. 12 is an explanatory view showing the bathtub of FIG. 1 in a used state.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer tank 10a Front flange 10a of outer tank 10a, rear flange 10c of outer tank 10d Side flange of outer tank 2 Inner tank 3 Under tray 4 Inner tank raising / lowering drive mechanism 40 First reversible motor 40a Rotary drum 41a, 41b , 41a ', 41b'
Suspend wires 42, 42 ', 43a, 43b, 43a', 43b '
Pulley 5 Inner tank forward / backward drive mechanism 50, 50 'Slide plate 51, 52, 51', 52 '
Connecting plate 53 Second reversible motor 53a Rotary drum 54 Suspend wires 55, 55 ', 56, 56'
Pulleys 6a, 6b, 6a ', 6b'
Wheels 7a, 7b, 7a ', 7b'
Guide rail 73a, 73b Guide rail concave groove 8, 8 'Stopper

Claims (8)

Equipped with a box-shaped outer tank with an open upper part, and a substantially tetrahedral inner tank with the upper and front sides opened as entrances for bathers, and the inner tank rises from the inner bottom of the outer tank to the upper part of the tank Moving or moving the inner tank down from the upper part of the tank to the inner bottom of the tank, and the inner tank until the front bottom of the inner tank located at the top of the outer tank is passed over the front flange of the outer tank. A bath tub comprising: an advancing / retracting drive mechanism for retreating an inner tub from an advancing position or an advanced position to an upper portion of the outer tub. A first reversible motor having a rotating drum is provided on the rear flange of the outer tub, and a plurality of suspending wires are connected to the rotating drum of the reversing motor at a relative position on a circumference and a plurality of the suspending wires are connected at each wire end. And pull out the suspend wire separately on the left and right sides of the rear flange, and conduct inductive wiring from the side flanges to the inside of the outer tank in units of wires via pulleys. Elevating drive which is connected to the bottom of the side at each other wire end and raises or lowers the inner tank in the outer tank by winding or rewinding the suspend wire by the rotation of the first reversible motor. The bathtub according to claim 1, wherein a mechanism is assembled. An under tray for receiving and placing the inner tank is provided, and a suspend wire drawn from the first reversible motor is connected to the under tray at a wire end, and the inner tank is placed on the under tray and moved up in the outer tank. The bathtub according to claim 2, wherein the bathtub is provided so as to be movable downward. A connection plate comprising left and right slide plates movable in the front-rear direction along side flanges of the outer tub, engaged with the ascending movement of the inner tub, and disengaged with the descending movement of the inner tub. Is disposed between the side bottom of the inner tank and the slide plate,
A second reversible motor having a rotating drum is provided on the rear flange of the outer tub, and one suspend wire is displaced by a distance equivalent to the moving stroke of the slide plate and is wrapped around the circumference of the rotating drum so as to be movable. Guide the wiring from the left and right side flanges to the rear flange by turning it at the left and right front corners of the outer tank, and slide the different strips inside and outside the suspended wire turning from the left and right front corners of the outer tank. A reciprocating drive mechanism for moving the inner tank located above the outer tank with a slide plate by moving the suspending wire by the rotation of the second reversible motor. A bathtub according to claim 1 or 3, characterized in that: At least a pair of front and rear wheels are attached to at least the left and right sides of the outer bottom surface of the inner tank, guide rails for running each wheel are laid on the under tray, and the inner tank located at the top of the outer tank is advanced by wheels along the guide rails The bathtub according to claim 4, wherein the bathtub is provided so as to be able to move or retreat. A guide rail with the rear side inclined uphill and the front side inclined downhill in the forward direction of the inner tank is provided on the under tray, and the inner tank is moved forward at the forward position by the front flange of the outer tank. The bathtub according to claim 5, wherein the bathtub is provided so as to be capable of receiving and installing. Semicircular grooves for receiving and locking wheels are provided near the rear and front of the guide rail, and the inner tank is provided so as to be able to stop positioning in the outer tank and in the forward or backward position. The bathtub according to claim 4, wherein A stopper which is engaged at a forward position of the inner tank and is disengaged with the retreat of the inner tank between the front bottom of the inner tank and the front flange of the outer tank. The bathtub according to any one of 4 to 6.

Images