JP4183269B2 - Bathtub - Google Patents

Description

  The present invention relates to a bathtub in which a part of a wall portion is moved up and down in the vertical direction and the height of an upper edge can be changed.

In general, the size and shape of a bathtub are determined based on healthy adults.
For this reason, there is a problem that it is difficult to use when used by a non-healthy person or an infant.
For example, in the case of a non-healthy person who needs an assistant for bathing, the assistant needs to wash the bather's body that has entered the bathtub by reaching into the bathtub over the upper edge of the bathtub.

For this reason, the assistant has to bend in front of the middle waist, and the physical burden is very large, and there is a problem that the assistant may hurt the waist and the like.
In addition, bathers need to straddle the upper edge of the bathtub, but for non-healthy people, supporting one's body while balancing with one foot is dangerous and can cause a fall accident. there were.
In addition, even when the height is low, such as a child, it is not easy to get over the bathtub wall according to the adult's physique.

In addition, in the case of infants, hold on the upper edge of the outer wall and stand outside the tub and look inside the tub, or conversely, from the inside of the tub, look down the bathroom floor and lose balance and fall from the head There was a problem that the accident was likely to occur.
Moreover, when the height is low like an infant, it may be dangerous because it may climb on the outer wall of the bathtub and fall into and out of the bathtub.
In addition, infant drowning accidents due to falling into a bathtub are positioned at the top of the cause of death accidents occurring in the home, and it is urgent to reduce such falling accidents.

In order to solve the above problem, the depth of the bathtub may be reduced.
However, a bathtub having a low upper edge has a large bottom area, requires a large space for installation, and is difficult for a healthy person to use.
Moreover, in a general household, it is impossible to simultaneously provide a bathtub for a healthy person and a bathtub for a non-healthy person or a bathtub for an infant.

In order to solve the above problem, Japanese Patent Application Laid-Open No. 2004-49845 has a suggestion regarding a wall surface that slides up and down a part of the peripheral wall of the bathtub.
In order to make the wall surface which slides a part of peripheral wall of a bathtub, the water stop between a bathtub and a slide wall surface is very important.
However, in this patent document, only a movable wall surface by an open / close door via a hinge is disclosed as an example, and a specific structure of the slide wall surface and water stop means having both slide performance and water stop performance are disclosed. It was not done and could not be implemented realistically.

JP 2004-49845 A

  An object of the present invention is to provide a bathtub that can be used safely and comfortably by a healthy person, a non-healthy person, or an infant.

The above purpose is
In a bathtub having a wall surface on which at least one or a part of the peripheral wall of the bathtub slides up and down,
A cutout extending in a substantially rectangular shape in the floor direction is provided from at least a part of the upper edge of the bathtub,
Both corners on the floor side of the notch are rounded into a curve,
Packing is provided on the outer surface side of the bathtub and along the periphery of the notch,
A pair of substantially parallel guide rails extending from the upper edge of the bathtub to the bottom surface of the bathtub floor along both sides of the notch and along the outer surface of the bathtub,
A bathtub guided by a guide rail, supported so as to be movable in the vertical direction along the outer surface of the bathtub, and having a smooth inner surface on the bathtub side, in close contact with the packing, and provided with a bellows-shaped shutter on the outer surface side There,
A plate-like packing mounting wall portion is provided along the peripheral outer surface side of the notch of the bathtub through the outer surface of the bathtub and a predetermined gap from the outer surface of the bathtub in the opening direction of the notch.
The packing is a long resin member,
A substantially U-shaped sandwiching portion having a pair of sandwiching walls opposed to each other in a cross section perpendicular to the longitudinal direction of the packing;
On the outer surface side of one sandwiching wall, an elastic dome that covers the outer surface and is provided so as to form a hollow with the outer surface,
By fitting the packing mounting wall part in the gap between the packing sandwiching parts, the packing is attached to the packing mounting wall part,
The dome portion of the packing is achieved by a bathtub closely contacting the inner surface of the shutter guided by the guide rail.

At this time, the pair of guide rails are substantially U-shaped in cross section perpendicular to the longitudinal direction, and are provided on the outer surface side of the bathtub so that the opening sides face each other,
The shutter
A flexible sheet disposed along the outer surface of the bathtub between a pair of guide rails, and at least the inner surface of the bathtub side is smooth,
Consisting of a plurality of long bellows on the outer surface side of the waterproof sheet along the direction perpendicular to the guide rail and adjacent to each other, it can be bent with the border of the adjacent bellows as a fold line A bellows layer provided in
It is recommended that the outer surface of the plate portion of the bellows layer be composed of a reinforcing member provided along the longitudinal direction of the bellows material.

  In addition, at least one of the side surfaces near the upper edge of the shutter always protrudes sideways, and when necessary, the movable shaft that is immersed in the shutter and the guide rails that are close to and face the side surface of the shutter are required. It is recommended to provide at least one stop hole where the protruding movable shaft can be fitted at a position, and to provide a stopper function that prevents the shutter from moving up and down by fitting the movable shaft into the stop hole.

When the bathtub according to the present invention is used, the height of the upper edge of the bathtub can be changed by raising and lowering the shutter. Therefore, the height of the shutter is adjusted according to the use environment of the bather, and it is comfortable and safe. You can take a bath.
In addition, when an assistant is required for bathing, if the shutter height is lowered, the assistant can wash the body of the assistant in a comfortable posture without bending down.
Moreover, the fall accident of an infant can be prevented, As a result, the drowning accident by fall can also be prevented.

Hereinafter, the present invention will be described in detail with reference to the drawings.
1 is a front view of a first embodiment of a bathtub according to the present invention, FIG. 2 is a top view of FIG. 1, FIG. 3 is a right side view of FIG. 1, and FIG. 4 is a state in which the shutter shown in FIG. 5 is a cross-sectional enlarged view taken along the line AA ′ of FIG. 1, FIG. 6 is a partial cross-sectional explanatory view of FIG. 3, and FIG. 7 is a partial cross-sectional enlarged view of the vicinity of the handshake of the shutter shown in FIG. 8 is an enlarged end view of the packing shown in FIG. 4, FIG. 9 is a partial sectional explanatory view showing a state where the shutter of FIG. 6 is lowered, FIG. 10 is a front view of FIG. 9, and FIG. FIG. 12 is a front view of FIG. 11, FIG. 13 is a front view of the shutter shown in FIGS. 11 and 12, and FIG. 14 is a cross-sectional view taken along line BB 'of FIG. FIG. 15 is an explanatory sectional view showing a state where the stopper of FIG. 13 is released.

First, based on FIG. 1 thru | or FIG. 4, the 1st Example of the bathtub concerning this invention is described.
In the figure, 1 is a bathtub according to the present invention, 10 is a bathtub body, 10a is a notch, 11 and 12 are guide rails, and 13 is a shutter.
The bathtub body 10 is the same as a general bathtub except that it has a notch 10a to be described later, and is made of, for example, fiber reinforced plastic, stainless steel, or wood.
In addition, although the description was abbreviate | omitted about the member which supports the bathtub 1 in the figure, this bathtub 1 is mounted and fixed horizontally on a floor surface by the method usually considered.
As shown in FIG. 4, the notch 10 a is an opening that extends in a strip shape in the floor direction from a part of the upper edge of one long wall surface of the bathtub.
Further, both corners on the floor side of the notch 10a are cut into an arc shape.

Next, based on FIG.5 and FIG.6, the guide rails 11 and 12 are demonstrated.
In the figure, reference numerals 110 and 120 denote retaining members.
The guide rails 11 and 12 are a pair of long rails, and are located on both sides of the notch 10a of the bathtub body 10 and along the outer surface of the bathtub body 10 from the vicinity of the upper edge of the bathtub, and the floor of the bathtub body 10. It is provided to extend to the surface side.
The pair of guide rails 11 and 12 have a substantially U-shaped cross section, and their opening sides are arranged to face each other.

Moreover, as shown in FIG. 5, along the edge of the inward surface on the side away from the bathtub body 10 among the opposing surfaces forming the U-shape of the guide rails 11 and 12, a shutter 13 described later and A protrusion is provided to reduce the contact surface. By this protrusion, the friction between the shutter 13 and the guide rails 11 and 12 is reduced, and the shutter 13 can be raised and lowered smoothly.
At the upper ends of the upper ends of the guide rails 11 and 12, retaining members 110 and 120 for closing the upper ends of the guide rails 11 and 12 are provided.
The upper surfaces of the retainers 110 and 120 can be flush with the upper edge of the bathtub body 10.
The retaining members 110 and 120 are detachably locked to the side surface of the upper edge of the bathtub body 10 by locking means (not shown).

Next, the shutter 13 will be described with reference to FIG.
In the figure, 13 is a shutter, 130 is a waterproof sheet, 130a is a surface layer, 130b is a base layer, 131 is a bellows layer, 131a is a bellows material, 132 is a reinforcing member, and 133 is a handshake.
The shutter 13 includes a water stop sheet 130, a bellows layer 131, a reinforcing member 132, and a handshake 133.
The water-stop sheet 130 is composed of two layers, a surface layer 130a and a base layer 130b.
The surface layer 130a is a soft and smooth thin resin sheet.
The foundation layer 130b is a flexible resin sheet and is laminated on one surface of the surface layer 130a.
The width of the water stop sheet 130 is substantially the same as the interval between the guide rail 11 and the guide rail 12 that are opposed to each other on the inner wall surfaces.

The bellows layer 131 is composed of a plurality of elongated plate-like bellows members 131a.
The bellows 131a is a resin member having a substantially trapezoidal cross section perpendicular to the longitudinal direction.
The bellows member 131 a is attached so that the trapezoidal bottom surface side of the cross section is in close contact with the base layer 130 b of the water-stop sheet 130 and is adjacent to each other along the width direction of the water-stop sheet 130.
The water-stop sheet 130 can be bent with the contact edges of the plurality of bellows members 131a as fold lines.

Further, the bellows layer 131 is provided so as to cover one surface of the water-stop sheet 130 while leaving a region for attaching a handshake 133 described later.
The reinforcing member 132 is an aluminum prism pipe and is provided on the outer flat surface of the bellows member 131a along the longitudinal direction of the bellows member 131a to reinforce the shutter 13 so as not to be distorted.
The handshake 133 is provided along the edge serving as the upper edge of the water stop sheet 130 when the shutter 13 is fitted to the guide rails 11 and 12.

Next, the water stop mechanism 14 is demonstrated based on FIG.4, FIG.5 and FIG.8.
In the figure, 10a is a notch, 14 is a water stop mechanism, 1400 is a base, 1401 is a packing, 1401a is a clamping part, 1401b is a dome part, and 1402 is a seal.
The water stop mechanism 14 is a wall outer surface of the bathtub main body 10 and is provided along the periphery of the notch 10a of the bathtub main body 10, and a part of the water stop mechanism 14 is a guide rail 11 as shown in FIGS. , 12 through.
As shown in FIG. 5, the base 1400 is a three-layer plate having the same thickness. In the guide rails 11 and 12, the base 1400 is provided on the inner surface of the bathtub body 10 on the wall surface side. 11 and 12, the guide rails 11 and 12 are attached to the bathtub main body 10 via the base plate 1400 a (FIG. 6) having the same thickness as the structure portion that is in close contact with the bathtub main body 10.

Of the three layers of plates constituting the base 1400, the edge of the center layer on the side of the notch 10a projects to substantially the same position as the opening edges of the guide rails 11 and 12 to form a packing mounting wall.
Further, the edge of the layer laminated on both sides of the central layer terminates at the same position inside the guide rails 11 and 12 from the opening edge of the guide rails 11 and 12.
For this reason, a groove is formed between the central layer of the base 1400 and the bathtub body 10 side.

The packing 1401 is a long resin member. As this resin, an elastomer is mentioned, for example.
The packing 1401 has a substantially U-shaped sandwiching portion 1401a having a pair of sandwiching walls opposed to each other, and the outer surface of one sandwiching wall covers the outer surface of the packing 1401 and the outer surface. And an elastic dome portion 1401b that forms a hollow therebetween.
The width of the gap of the holding portion 1401a and the thickness of the holding wall are substantially the same as the thickness of the plate of the base 1400.
As shown in FIG. 5, the packing 1401 is attached to the base 1400 so that the dome part 1401b faces outward and the packing attachment wall part of the base 1400 fits inside the clamping part 1401a.
Further, a seal 1402 for preventing water leakage is filled between the packing 1401 and the outer wall surface of the bathtub body 10.

The shutter 13 is a guide rail so that the reinforcing member 132 faces the outside of the bathtub 1 from the edge opposite to the side to which the handshake 133 is attached when the retaining members 110 and 120 are removed. 11 and 12 are inserted.
At this time, since the shutter 13 is pressed in the direction of the bathtub body 10 by the opposing surfaces of the guide rails 11 and 12, the water-stop sheet 130 of the shutter 13 crushes the dome part 1401 b of the packing 1410 and adheres closely. Then, the water is stopped between the water stop mechanism 14 and the shutter 13.
When the shutter 13 inserted between the guide rails 11 and 12 is pushed downward and the upper surface of the handshake 133 is lowered from the upper edge of the bathtub body 10, the retaining members 110 and 120 are disposed above the guide rails 11 and 12. Install.

When the retaining members 110 and 120 are attached, as shown in FIG. 1, the maximum rising position of the upper surface of the handshake 133 of the shutter 13 is restricted to a configuration surface including the upper edge of the bathtub body 10.
When the shutter 13 is pushed downward, the shutter 13 is lowered to the position shown in FIGS.
When lowered to this position, the lowering of the shutter 13 is restricted by a stopper (not shown).

Since the bathtub according to the present invention is configured as described above, the height of the upper edge of the bathtub 1 can be changed by raising and lowering the shutter 13 according to the present invention.
At this time, the space between the shutter 13 and the packing 1401 is tightly sealed by the packing 1401, so that water does not leak even if hot water is accumulated in the bathtub 1.
It is also possible to raise and lower the shutter 13 with hot water remaining.

When using this bathtub 1, in the case of a user who has difficulty climbing over the wall of a normal bathtub by raising his / her legs, the user can enter the bathtub 1 without pushing the shutter 13 down and lifting the legs high. it can.
At this time, it is recommended to keep hot water in the bathtub 1 to the vicinity of the upper edge of the pressed shutter 13.

After the user sits in the bathtub 1, the bathing caregiver grasps the handshake 133 of the shutter 13 and raises the shutter 13 to a desired position.
At this time, the shutter 13 may be pulled up to the full upper edge. In particular, when the bathing caregiver is washing the user's body, the bathing caregiver is greatly reduced if the shutter 13 is lifted halfway. The user's body can be washed in an easy posture without bending.

In addition, since the shutter 13 can be moved up and down as described above, it can be used in the same manner as a normal bathtub if it is used in the uppermost position. Therefore, even when a normal person uses it in a general home. There is no inconvenience and it can be used as a general household bathtub.
For this reason, by raising and lowering the shutter 13 according to the physical ability and demand of the user, comfortable bathing becomes possible, and QOL can be dramatically increased.
In addition, when the child is bathed or watering, the user can easily use the shutter 13 by lowering the shutter 13.

Furthermore, even when a newborn is bathed, by lowering the shutter 13, the bathing work can be performed at a position where the child can be easily supported, and the burden on the parent or the like can be greatly reduced.
In addition, by lowering the shutter 13 and using it, it is possible to prevent a child from peeping into or climbing down the inside and outside of the bathtub through a high outer wall, preventing a fall accident, and a drowning accident caused by the fall accident. Can be prevented.

Next, based on FIG. 11 thru | or FIG. 15, 2nd Example of the bathtub which concerns on this invention is described.
11 is a partially enlarged side view of the vicinity of the handshake of the shutter according to the second embodiment, FIG. 12 is a front view of the shutter shown in FIG. 11, and FIG. 13 is a front view showing an insertion state of the shutter shown in FIG. FIG. 14 is a cross-sectional view taken along the line BB ′ of FIG. 13 and FIG. 15 is a cross-sectional view showing a state where the movable shaft of FIG. 14 is operated.
Since the second embodiment is the same as the first embodiment except for the shutter and its peripheral structure, the differences will be mainly described and the description overlapping with the first embodiment will be omitted.
11 to 15, 2 is a shutter, 20 is a water stop sheet, 20 a is a groove, 21 is a reinforcing member, 210 is a sealing member, 22 is a stopper unit, 220 is a housing, 221 is a movable shaft, and 222 is an operator. 223 is an elastic body, 23 is a handshake, 30 and 31 are guide rails, 40 and 41 are subrails, and 5 is a packing.

The shutter 2 includes a water stop sheet 20, a reinforcing member 21, a sealing member 210, a stopper unit 22, and a handshake 23.
The waterproof sheet 20 is made of polyethylene and has a thickness of 8 mm, and the width thereof is substantially the same as the interval between the mutually opposing inner wall surfaces of guide rails 30 and 31 described later, as in the first embodiment. It is.
A plurality of V-shaped grooves 20 a are provided in parallel on one surface of the water-stop sheet 20.
The groove 20a has an opening width of 7 mm and a depth of 7.5 mm, and an interval between opening edges of grooves provided in parallel is 13 mm.

The water-stop sheet 20 can be bent along the groove 20a and curved in a bellows shape.
The reinforcing member 21 is a prismatic pipe having a square cross section perpendicular to the axis and an outer dimension of one side of the square of 13 mm. The length of the reinforcing member 21 is shorter than the width of the water blocking sheet 20.
Further, both ends of the reinforcing member 21 are sealed by a sealing member 210 except for one end to which a stopper unit 22 described later is attached.
The reinforcing members 21 are respectively attached to the centers of the planar regions sandwiched between the grooves 20a of the water blocking sheet 20.

As a method of attaching the reinforcing member 21 to the water stop sheet 20, for example, a plurality of fixing pins are driven into the surface of the water stopping sheet 20 to which the reinforcing member 21 is attached, and the fixing pin of the reinforcing member 21 is fixed. A receiving hole is provided in the abutting region, an adhesive is applied to the contact surface of the reinforcing member 21 with the water-stop sheet 20, and the fixing pin is engaged with the receiving hole and attached by caulking.
Further, among the reinforcing members 21, the reinforcing member 21 to which a stopper unit 22 described later is attached is provided with a single through-hole for allowing an operator 222 described later to pass therethrough.
The stopper unit 22 includes a housing 220, a movable shaft 221, an operation element 222, and an elastic body 223.

The housing 220 is a rectangular parallelepiped hollow case that can be tightly inserted into one end of the reinforcing member 21.
One end surface of the housing 220 is provided with a circular hole through which a distal end of a movable shaft 221 to be described later can protrude.
Further, on the side surface of the housing 220, a single through hole through which an operation element 222 described later passes is provided.

The movable shaft 221 is a round bar whose diameter is slightly smaller than the diameter of the circular hole of the housing 220, and has a flange 221a in the vicinity of one end.
The flange 221 a has a rectangular shape that can be accommodated in the housing 220.
The operation element 222 is attached to the cylindrical surface of the movable shaft 221 so as to protrude.
The elastic body 223 is a compression coil spring.

The movable shaft 221 is housed inside the housing 220 so that the tip of the movable shaft 221 protrudes from a circular hole provided in the end surface of the housing, and the movable shaft 221 can reciprocate along the longitudinal direction of the housing 220.
The operating element 222 is attached to the movable shaft 221 through the movable shaft 221 accommodated in the housing 220 through a single through-hole provided in the side surface of the housing 220.
The elastic body 223 is accommodated between the end of the movable shaft 221 in the housing 220 and the inner surface of the end surface of the housing 220 facing the end, and the flange 221a of the movable shaft 221 and the inner surface of the housing 220 In the meantime, the movable shaft 221 acts to push out the housing 220.

The tip of the movable shaft 221 normally protrudes outward of the housing 220 due to the action of the elastic body 223, but by operating the operating element 222 in the direction in which the elastic body 223 is compressed, the housing 220 Can be moved inward.
The stopper unit 22 is attached to one end of the reinforcing member 21 closest to the handshake 23 of the shutter 2.
When attaching the stopper unit 22, the stopper unit 22 is tightly pushed into the reinforcing member 21 and fixed so that the tip of the movable shaft 221 protrudes outward from the reinforcing member 21 with the operation element 222 removed.

At this time, the through hole for passing the operation element 222 of the housing 220 and the through hole of the reinforcing member 21 are combined so that the through holes overlap.
After the stopper unit 22 is fixed to the reinforcing member 21, the operation element 222 is inserted from the through hole and attached to the movable shaft 221.
When the stopper unit 22 is attached to the reinforcing member 21, the tip of the movable shaft 221 protrudes from the end of the reinforcing member 21 as shown in FIG. 12.

The handshake 23 is the same as that of the first embodiment, and is attached to the center of the upper edge of the shutter 2 as shown in FIGS.
The width of the handshake 23 is substantially the same as the length of the reinforcing member 21.
The guide rails 30 and 31 are provided along the outer surfaces on both sides of the notch of the bathtub body as in the first embodiment.
The guide rails 30 and 31 have an H-shaped cross section, and as shown in FIG. 14, the openings on one of the U-shaped guide rails 30 and 31 are arranged to face each other.

A packing 5 is provided in the opening of the guide rails 30 and 31 facing each other as in the first embodiment.
The sub rails 40 and 41 are provided along the outer plane portions of the guide rails 30 and 31 attached to the bathtub body.
The sub rails 40 and 41 are composed of flat portions 40a and 41a that contact the guide rails 30 and 31, and protective walls 40b and 41b that rise vertically from the edges of the flat portions 40a and 41a on the notch side of the bathtub body. It is a long member having an L-shaped cross section.
As shown in FIGS. 13 and 15, the sub rails 40 and 41 are fixed to the guide rails 30 and 31 with a plurality of bolts and nuts.

When the shutter 2 is mounted, a stop hole through which the tip of the movable shaft 221 of the stopper unit 22 can pass is provided in one of the sub rails 40 on the side where the stopper unit 22 faces.
When the handshake 23 of the shutter 2 reaches the same height as the upper edge of the bathtub main body, this stop hole is located at one position in contact with the tip of the movable shaft 221 and when the shutter 2 is pushed down to the lowest level. In addition, it is provided at one place at the portion that similarly contacts, and further, at one or more, preferably at two places at an appropriate interval between the upper and lower stop holes.

Next, how to operate the shutter 2 will be described.
As in the case of the first embodiment, the shutter 2 shown as the second embodiment is different from the handshake 23 so that the flat surface of the waterproof sheet 20 is in close contact with the packing 5 between the guide rails 30 and 31. Inserted from the opposite edge.

At this time, the reinforcing member 21 is accommodated between the protective walls 40a and 40b of the sub rails 40 and 41 through a minute gap.
When the shutter 2 is pushed down, the tip of the movable shaft 221 protruding from the stopper unit 22 is hooked on the upper edge of the sub rail 40. Therefore, the operator 221 is pushed toward the center of the shutter 2 with a finger and the movable shaft 221 is pulled. In this state, press the shutter 2 down.

As a result, the tip of the reinforcing member 21 movable shaft 221 provided with the stopper unit 22 fits between the protective walls 40b and 41b. In this state, when the operator 222 is released, the elastic body 223 acts. The tip of the movable shaft 221 is pressed against the sub rail 40.
Further, when the shutter 2 is pushed down, when the movable shaft 221 comes into contact with the uppermost stop hole of the subrail 40, it is pushed out to the stop hole, the movable shaft 221 penetrates the subrail 40, and the shutter 2 is moved up and down. Fixed impossible.

When it is desired to change the height of the shutter 2, the operator 222 is pushed and retracted to retract the movable shaft 221, and the shutter 2 is pushed down or pushed up. Release your hand and move the shutter 2.
When the movable shaft 221 comes into contact with the stop hole by moving the shutter 2, the movable shaft 221 fits into the click and the stop hole, and the shutter 2 is fixed.

In the second embodiment described above, the shutter 2 can be fixed at a desired position by the stopper unit 22. For example, even if the handshake 23 is inadvertently touched by shaking, the shutter 2 is slipped. It does not go down and is safe.
Further, with the stopper unit 22 described above, the fixation can be released by simply hooking a finger on the operation element 222 at the start of movement, and the shutter 2 can be fixed without touching the operation element 222 after the release.

In addition, this invention is not limited to said Example.
In the above embodiment, the shutter is provided on the wall surface on the long side of the bathtub. However, the shutter may be provided on the wall surface on the short side. A plurality of shutters may be attached.
In addition, the shutter structure is deformed along the wall surface of the bathtub as it is raised and lowered, and when water or hot water is accumulated in the bathtub, it is deflected too much by water pressure and does not leak from between the packing. As long as it has the strength, it may be anything.

  Further, in the above embodiment, the shutter reinforcing member is an aluminum pipe, but the material of the rectangular column pipe is not limited to this, for example, stainless steel, nylon coated steel, fiber Reinforced plastic etc. can be used, and the shape should be such that when the water is stored inside the bathtub, the shutter is distorted by the water pressure, so that there is no gap between it and the packing. For example, it is not limited to a rectangular pipe.

Further, the water-stop sheet of the shutter is made of resin in the above embodiment, but is not limited to resin as long as it is flexible and can form a smooth surface. A sheet may be used.
Moreover, in said 1st Example, although the water stop sheet | seat is a two-layer lamination sheet, you may use the lamination sheet of a single layer or three layers or more.
The packing is made of a resin, but the resin is not limited to a synthetic resin, and may be a naturally derived resin such as natural rubber.
Moreover, the seal | sticker provided between a packing and a bathtub main body is unnecessary when the water stop between a packing and a bathtub main body is high.

In addition, the base for attaching the packing may be anything as long as the packing shown in the embodiment can be attached, and is not limited to the above embodiment.
In the above embodiment, the shape of the corner of the notch to which the packing is attached is cut into a large arc shape, but the diameter may be small, and the packing should be adapted to the base to which the packing is attached. If possible, the shape is not limited to the above embodiment.

Further, the protrusion provided along the inner edge of the guide rail may not be provided depending on the material selected, or may be provided with a plurality of protrusions. Any shape can be used.
However, if the frictional force is lost too much, even if the handshake is lightly held, the shutter may be pushed down, leading to an unexpected accident. Therefore, consideration should be given so that a certain amount of frictional force can be obtained.

In addition, a stopper that controls the raising / lowering of the shutter may be attached so that the shutter cannot be pushed down when the shutter is accidentally touched.
In this case, the second embodiment is illustrated as a specific example of the stopper, but the stopper mechanism is not limited to the illustrated one, and any mechanism can be used as long as the shutter can be fixed at a desired height. There may be.
In the above embodiment, the bathtub body is exposed on both sides of the shutter, but this portion is covered with a decorative board or the like, and an apron is formed.

In the first embodiment, the guide rail may be sandwiched except for the reinforcing member.
In addition, the shape and size of the bathtub body and the material of the bathtub body and each part can be freely changed in design within the scope of the present invention.
In particular, the members constituting the flexible sheet of the shutter can be appropriately selected as long as the material is excellent in water resistance, heat resistance, wear resistance, smoothness, and workability, and can be molded and engaged. The processing method such as adhesion can be changed according to the employed material.
Moreover, the thickness of the water stop sheet | seat in 2nd Example, the shape of a groove | channel, and a space | interval can be freely changed in design according to the magnitude | size and shape of a bathtub main body.

In the first and second embodiments described above, the guide rails are provided in parallel, and in principle, it is desirable to make them parallel, but depending on the specifications and design, they may not be strictly parallel.
Specifically, when the shutter is made of a flexible material, for example, the guide rail may be narrowed as it goes downward, and may be bent as the shutter approaches downward, On the contrary, the upper part may be narrowed and the upper part may be bent.
In this case, the guide direction of the guide rail may be twisted according to the deflection of the shutter.

  In addition, if the width of a part of the guide rail holding the shutter is widened so as to cover the vicinity of both sides of the outer surface of the shutter, at least one of the guide rails is within the range where the shutter does not come off from the guide rail. You may make it incline with respect to the other, and when the shape of the bathtub is a curved surface, the guide rail shape | molded according to the shape is used.

Since the bathtub according to the present invention has a shutter that can be moved up and down at least at a part of the wall portion, the height of the upper edge of the bathtub can be lowered according to the user's request, and the bathtub can be entered and exited. Makes it easier and safer to bathe.
Moreover, since it becomes unnecessary to straddle the upper edge of a bathtub greatly at the time of entering / exiting a bathtub, the fall accident by breaking a balance in the middle of one leg stand can be prevented.
Moreover, the fall accident by the infant and the drowning accident resulting from the fall accident can be prevented.

Also, for bathing assistants, when a person requiring assistance crosses the wall of the bathtub, the time to stand on one foot can be reduced as much as possible, and the physical burden can be reduced, The bather's body can be washed with a comfortable posture by keeping the shutter height low during bathing.
In addition, newborns can be easily bathed.
Moreover, since it can be used similarly to a normal bathtub, even a healthy person can use it without trouble, and it becomes possible to provide an easy-to-use bathtub according to the situation of the user.

It is a front view of the 1st example of the bathtub concerning the present invention. FIG. 2 is a top view of FIG. 1. It is a right view of FIG. It is a front view of the bathtub which shows the state which removed the shutter shown in FIG. FIG. 2 is an enlarged sectional view taken along line AA ′ in FIG. 1. FIG. 4 is a partial cross-sectional explanatory diagram of FIG. 3. FIG. 2 is an enlarged partial cross-sectional view in the vicinity of a handshake of the shutter shown in FIG. FIG. 5 is an enlarged end view of the packing shown in FIG. 4. FIG. 7 is a partial cross-sectional explanatory view showing a state where the shutter of FIG. 6 is lowered. FIG. 10 is a front view of FIG. 9. It is a partial enlarged side view of the vicinity of the handshake of the shutter according to the second embodiment. It is a front view of the shutter shown in FIG. It is a front view which shows the insertion state of the shutter shown in FIG. It is BB 'sectional drawing of FIG. It is sectional drawing which shows the state which operated the movable axis | shaft of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 10 Bath body 10a Notch 11 Guide rail 110 Retaining member 12 Guide rail 120 Retaining member 13 Shutter 130 Water stop sheet 130a Surface layer 130b Underlayer 131 Bellows layer 131a Bellows material 132 Reinforcement member 133 Handshake 14 Water stop mechanism 1400 Base 1400a Base plate 1401 Packing 1401a Nipping part 1401b Dome part 1402 Seal 2 Shutter 20 Water stop sheet 20a Groove 21 Reinforcement member 210 Sealing member 22 Stopper unit 220 Housing 221 Movable shaft 221a Flange 222 Operating element 223 Elastic body 23 Handshake 30 Guide rail 31 Guide rail 40 Sub rail 40a Plane portion 40b Protective wall 41 Sub rail 41a Plane portion 41b Protective wall 5 Packing

Claims (3)

In a bathtub having a wall surface on which at least one or a part of the peripheral wall of the bathtub slides up and down,
A cutout extending in a substantially rectangular shape in the floor direction is provided from at least a part of the upper edge of the bathtub,
Both corners on the floor side of the notch are rounded into a curve,
Packing is provided on the outer surface side of the bathtub and along the periphery of the notch,
A pair of substantially parallel guide rails extending from the upper edge of the bathtub to the bottom surface of the bathtub floor along both sides of the notch and along the outer surface of the bathtub,
A bathtub guided by a guide rail, supported so as to be movable in the vertical direction along the outer surface of the bathtub, and having a smooth inner surface on the bathtub side, in close contact with the packing, and provided with a bellows-shaped shutter on the outer surface side There,
A plate-like packing mounting wall portion is provided along the peripheral outer surface side of the notch of the bathtub through the outer surface of the bathtub and a predetermined gap from the outer surface of the bathtub in the opening direction of the notch.
The packing is a long resin member,
A substantially U-shaped sandwiching portion having a pair of sandwiching walls opposed to each other in a cross section perpendicular to the longitudinal direction of the packing;
On the outer surface side of one sandwiching wall, an elastic dome that covers the outer surface and is provided so as to form a hollow with the outer surface,
By fitting the packing mounting wall part in the gap between the packing sandwiching parts, the packing is attached to the packing mounting wall part,
A bathtub in which the dome part of the packing closely contacts the inner surface of the shutter guided by the guide rail. The pair of guide rails are substantially U-shaped in cross section perpendicular to the longitudinal direction, and are provided on the outer surface side of the bathtub so that the opening sides face each other,
The shutter
A flexible sheet disposed along the outer surface of the bathtub between a pair of guide rails, and at least the inner surface of the bathtub side is smooth,
Consisting of a plurality of long bellows on the outer surface side of the waterproof sheet along the direction perpendicular to the guide rail and adjacent to each other, it can be bent with the border of the adjacent bellows as a fold line A bellows layer provided in
The bathtub according to claim 1, comprising: a reinforcing member provided on the outer surface side surface of the bellows material of the bellows layer along the longitudinal direction of the bellows material.   At least one of the side surfaces near the upper edge of the shutter always protrudes sideways, and when necessary, the movable shaft that is immersed in the shutter and the guide rail near the side surface of the shutter and at the required position on the opposite member. The bathtub according to claim 1, wherein at least one stop hole into which the protruding movable shaft can be fitted is provided, and a stopper function is provided to prevent the shutter from moving up and down by fitting the movable shaft into the stop hole. .