JP2020172216A - boat - Google Patents

Abstract

To provide a boat capable of having a wheelchair easily moved between floor surface in bottom and ground surface or water surface.SOLUTION: A boat 10 includes a plate state bottom 20 having a floor surface 30 of a size capable having a wheelchair 12 loaded on it. In addition, the boat 10 has a passage surface 38 with width capable of having the wheelchair 12 pass as well as a plate state 1st inclination unit 22a and a 2nd inclination unit 22b inclining obliquely upward from the bottom 20 in a state with a passage surface 38 connected to the floor surface 30. Furthermore, the boat 10 includes a first side wall unit 24a and a second side wall unit 24b provided to protrude upward from the floor surface 30. A space in between the first side wall unit 24a and the second side wall unit 24b is set to be slightly longer than width W of the wheelchair 12. A wheel 70 for rolling on the ground G is provided on a bottom surface 32 in the bottom 20. Axle 70a of a wheel 70 is arranged extending in the direction orthogonal to the direction the floor surface 30 and the passage surface 38 continue.SELECTED DRAWING: Figure 1

Description

The present invention relates to a boat that can be used for rescue of a person requiring rescue or leisure in a flood or water accident.

Conventionally, a boat has been proposed in which several people can board and carry out rescue activities in the event of a flood or water accident. For example, Patent Document 1 below discloses a ship in which the bottom of the ship constituting the floor surface and the float body surrounding the bottom of the ship are made of hard urethane foam.

JP-A-2015-155266

However, in the ship described in Patent Document 1, since the ship bottom is surrounded by a high float body and a hull plate, the wheelchair existing on the ground or water surface is moved to the floor surface of the ship bottom. In addition, there is a problem that it is difficult to move the wheelchair existing on the floor surface of the ship bottom to the ground or water surface.

The present invention has been made to address the above problems and an object of the present invention is to provide a boat capable of easily moving a wheelchair between the ground or water surface and the floor surface of the bottom of the ship.

In order to achieve the above object, the features of the present invention are a plate-shaped hull having a floor surface large enough to accommodate a wheelchair, a passage surface having a width that allows a wheelchair to pass through, and the passage surface being a floor. It is provided so as to project upward from the floor surface except for the plate-shaped inclined portion that is connected to the surface and is inclined diagonally upward from the bottom of the ship and the portion of the peripheral edge of the ship that is provided with the inclined portion. It is to be provided with a side wall portion.

According to this configuration, since the inclined portion is inclined obliquely upward from the bottom of the ship, the tip portion of the inclined portion can be brought closer to the ground or the water surface by tilting the boat on the ground or the water surface. Further, since the passage surface of the inclined portion is formed so as to be connected to the floor surface of the ship bottom with a width that allows the wheelchair to pass through, the wheelchair can be moved between the passage surface and the floor surface of the ship bottom. Therefore, a wheelchair existing on the ground or water surface can be easily moved to the floor surface of the bottom of the ship through the passage surface. In addition, the wheelchair existing on the floor surface of the ship bottom can be easily moved to the ground or water surface through the passage surface.

Further, the inclined portion is formed in a plate shape that inclines diagonally upward from the bottom of the ship, and the side wall portion is provided so as to project upward from the floor surface of the bottom of the ship, so that it exists on the floor surface of the bottom of the ship. The movement of the wheelchair can be suppressed by the inclined portion and the side wall portion.

Another feature of the present invention is that the inclined portion includes a first inclined portion provided in a first portion which is a part of a peripheral portion of the ship bottom and a second portion opposite to the first portion of the peripheral portion of the ship bottom. It is to have a second inclined portion provided in.

According to this configuration, since the first inclined portion and the second inclined portion are provided on the opposite sides of the peripheral edge portion of the ship bottom, the first inclined portion and the second inclined portion are passed through the passage surface of the first inclined portion to the floor surface of the ship bottom. The mounted wheelchair can be passed through the passage surface of the second inclined portion and lowered to the ground or water surface. Therefore, it is not necessary to reverse the direction of the wheelchair inside the boat, and even when the user is sitting on the wheelchair, the wheelchair can be easily lowered to the ground or the surface of the water.

Another feature of the present invention is that the side wall portion has a first side wall portion and a second side wall portion facing each other across the floor surface, and the distance between the first side wall portion and the second side wall portion is a wheelchair. It is slightly longer than the width of.

According to this configuration, the distance between the first side wall portion and the second side wall portion is slightly longer than the width of the wheelchair, so that the distance from the wheelchair to the first side wall portion and the second side wall portion is small. Therefore, the movement of the wheelchair existing on the floor surface of the bottom of the ship can be effectively suppressed by the first side wall portion and the second side wall portion.

Another feature of the present invention is that when the portion of the inclined portion connected to the bottom of the ship is the base end portion and the portion on the opposite side thereof is the tip portion, the width of the passage surface at the tip portion is the width of the passage surface at the base end portion. It is to be wider than the width.

According to this configuration, the width of the passage surface at the tip of the inclined portion is wider than the width of the passage surface at the base end of the inclined portion, so that a wheelchair existing on the ground or water surface is passed through the passage surface to the bottom of the ship. It is easy to pass the wheelchair through the passage surface when moving it to the floor surface.

Another feature of the present invention is that when the portion connected to the bottom of the inclined portion is the base end portion and the portion on the opposite side thereof is the tip portion, the tip portion protrudes outward from the end portion of the side wall portion. It is to be formed.

According to this configuration, the tip of the inclined portion is formed so as to project outward from the end of the side wall portion, so that when the boat is tilted, the tip of the inclined portion comes into contact with the ground or the water surface. Easy to make.

Another feature of the present invention is that when the portion of the inclined portion connected to the bottom of the ship is the base end portion and the portion on the opposite side thereof is the tip portion, the tip portion is formed in a wedge shape that gradually becomes thinner toward the tip. It is to be done.

According to this configuration, the tip of the inclined portion is formed in a wedge shape that gradually becomes thinner toward the tip. Therefore, when the tip of the inclined portion is brought into contact with the ground, the ground and the passage surface are formed. It is possible to reduce the level difference between the two, and it is easy to move the wheelchair.

Another feature of the present invention is that the length of the bottom of the ship and the length and angle of the slope allow an assistant who assists the movement of the wheelchair to lift one end of the main body including the bottom, slope and side wall. When the tip of the inclined portion constituting the other end of the main body is brought into contact with the ground, the height of one end is set to be lower than the height of the eyes of an assistant standing upright on the ground. To be there.

According to this configuration, when the tip of the inclined portion is brought into contact with the ground, the height of one end of the main body is lower than the height of the eyes of the assistant standing upright on the ground. , It is easy to visually check the wheelchair when moving the wheelchair between the ground and the floor of the bottom of the ship.

Another feature of the present invention is that the bottom surface of the bottom of the ship is provided with wheels that roll on the ground, and the axes of the wheels are arranged so as to extend in a direction orthogonal to the direction in which the floor surface and the passage surface are continuous. Is to be.

According to this configuration, after a wheelchair existing on the ground or water surface is placed on the passage surface, the main body portion including the ship bottom, the inclined portion and the side wall portion can be easily provided by utilizing the principle of leverage with the wheel shaft as the fulcrum. Can be level. Further, the wheelchair existing on the passage surface can be moved to the floor surface of the bottom of the ship by utilizing the inclination of the inclined portion when the main body portion is horizontal.

Another feature of the present invention is that the side wall portion has a first side wall portion and a second side wall portion facing each other across the floor surface, and the wheelchair has a seat and a drive provided on both sides in the width direction of the seat. It has a ring, and the vertical lengths of the first side wall portion and the second side wall portion are shorter than the distance from the seat of the wheelchair placed on the floor surface to the floor surface.

According to this configuration, the vertical lengths of the first side wall portion and the second side wall portion are shorter than the distance from the wheelchair seat placed on the floor surface to the floor surface, so that the user puts the wheelchair on the floor. Even when the user puts it on a surface and gets off the boat, the user can easily get over the first side wall portion and the second side wall portion and get off.

Another feature of the present invention is that the bottom of the ship and the inclined portion are made of a hard urethane foam.

According to this configuration, since the ship bottom and the inclined portion are formed by using the hard urethane foam, it is possible to give buoyancy to the ship bottom and the inclined portion and suppress the sinking. As a result, the height of the side wall can be kept low, so that the assistant can easily assist the movement of the wheelchair from the outside of the boat. In addition, since the rigidity of the bottom of the ship can be increased as compared with a rubber boat using air, the wheelchair can be stabilized on the floor of the bottom of the ship. Further, even if the ship bottom and the inclined portion are damaged, the buoyancy of the ship bottom and the inclined portion is not easily lost, and the damaged portion can be easily repaired.

Another feature of the present invention is that the bottom of the ship and the inclined portion are formed in a color different from that of the side wall portion.

According to this configuration, the bottom and the inclined portion are formed in a different color from the side wall portion, so that when the wheelchair existing on the ground or the water surface is moved through the passage surface of the inclined portion to the floor surface of the ship bottom. , Wheelchair users and assistants can easily grasp the position of the slope and the bottom of the ship.

It is a perspective view which shows the structure of the boat which concerns on embodiment of this invention. It is a top view which shows the structure of the boat shown in FIG. It is a bottom view which shows the structure of the boat shown in FIG. It is a side view which shows the structure of the boat shown in FIG. (A) is a front view showing the structure of the wheel unit, and (B) is the bottom view showing the structure of the wheel unit. (A) is a side view showing a step of placing a wheelchair existing on the ground on the passage surface of the inclined portion, and (B) is a side view showing a stage of moving the wheelchair existing on the passage surface to the floor surface of the bottom of the ship. C) is a side view showing a stage of moving a wheelchair existing on the floor surface of the bottom of the ship to the ground. It is a side view which shows the structure of the boat which concerns on other embodiment of this invention.

Hereinafter, embodiments of the boat according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a configuration of a boat 10 according to an embodiment of the present invention. FIG. 2 is a plan view showing the configuration of the boat 10. FIG. 3 is a bottom view showing the configuration of the boat 10. FIG. 4 is a side view showing the configuration of the boat 10. Note that FIGS. 2 and 4 show a state in which the wheelchair 12 is placed on the floor surface 30 of the bottom 20 of the ship.

The boat 10 shown in FIG. 1 is a boat that can be used for rescue and leisure of a person requiring rescue in a flood and a water accident, and is configured to be able to carry the wheelchair 12 shown in FIG. The wheelchair 12 has a seat 14 on which the user U sits and two drive wheels 16 provided on both sides of the seat 14 in the width direction. Each of the two drive wheels 16 has a tire 16a and a hand rim 16b. The user U sitting on the seat 14 can advance the wheelchair 12 in any direction by manually rotating the hand rim 16b of the drive wheel 16 to rotate the tire 16a. As shown in FIGS. 6A, 6B, and 6C, when the wheelchair 12 existing on the ground G or the water surface (not shown) is placed on or off the boat 10, the wheelchair 12 is used. Needs the help of assistant X to assist in the movement of the boat. When the wheelchair 12 is present on the surface of the water, a buoyancy body (not shown) for giving buoyancy to the wheelchair 12 is used.

(Structure of boat 10)
As shown in FIG. 1, the boat 10 includes a ship bottom 20, an inclined portion 22, a side wall portion 24 and two wheel units 26, and the main body portion 28 is composed of the ship bottom 20, the inclined portion 22 and the side wall portion 24. There is. The bottom 20 is a rectangular plate-shaped portion in a plan view having a floor surface 30 large enough to accommodate the wheelchair 12 shown in FIG. The surface of the ship bottom 20 facing upward is the floor surface 30, and the surface of the ship bottom 20 facing downward is the bottom surface 32 (FIG. 3).

As shown in FIG. 1, the inclined portion 22 is opposite to the first inclined portion 22a provided in the first portion 20a which is a part of the peripheral portion of the ship bottom 20 and the first portion 20a of the peripheral portion of the ship bottom 20. It has a second inclined portion 22b provided on the second portion 20b on the side. In the present embodiment, one end in the longitudinal direction of the bottom 20 is the first portion 20a, and the other end in the longitudinal direction of the bottom 20 is the second portion 20b. The first inclined portion 22a and the second inclined portion 22b are configured to be symmetrical with each other in the longitudinal direction of the main body portion 28.

As shown in FIG. 1, the first inclined portion 22a is a rectangular plate-shaped portion in a plan view having a passage surface 38 having a width through which the wheelchair 12 shown in FIG. 2 can pass. As shown in FIG. 2, the surface facing upward of the first inclined portion 22a is the passage surface 38, and as shown in FIG. 3, the surface facing downward of the first inclined portion 22a is the bottom surface 40. ing.

As shown in FIG. 1, the first inclined portion 22a is configured in a plate shape so as to incline diagonally upward from the bottom 20 of the ship with the passage surface 38 connected to the floor surface 30. The passage surface 38 and the bottom surface 40 (FIG. 3) of the first inclined portion 22a are formed on a gentle curved surface curved in an arc shape having a center of curvature inside them. When the portion of the first inclined portion 22a connected to the ship bottom 20 is the base end portion 42 and the portion on the opposite side thereof is the tip portion 44, the tip portion 44 gradually becomes thicker from the base end portion 42 toward the tip. It is formed in a wedge shape that becomes thin. Further, the tip portion 44 is formed in a wedge shape in which the thickness becomes thinner from the straight portion of the tip portion 44, not from the base end portion 42, which facilitates getting on and off the wheelchair 12 and the rigidity of the first inclined portion 22a. Can be easily secured. In these cases, the first inclined portion 22a is formed so that the thickness of the tip portion 44 is thin so that the tip portion 44 is easily deformed according to the shape of the installation surface, so that the wheelchair 12 can get on and off easily. Further, the tip portion 44 is formed on a rounded curved surface from the passage surface 38 to the bottom surface 40 (FIG. 3).

The shapes of the ship bottom 20 and the first inclined portion 22a are not limited to this embodiment, and may be changed as appropriate. For example, the floor surface 30 and the bottom surface 32 (FIG. 3) of the ship bottom 20 may be formed on a gentle curved surface. Further, the passage surface 38 and the bottom surface 40 (FIG. 3) of the first inclined portion 22a may be formed on a flat surface that is not curved, and the tip portions 44 thereof are formed with a constant thickness toward the tip end. May be done.

As shown in FIG. 2, the minimum width W1 of the passage surface 38 is wider than the width W of the wheelchair 12 so that the wheelchair 12 can pass through. Further, the width W2 of the passage surface 38 at the tip end portion 44 of the first inclined portion 22a is wider than the width (minimum width) W1 of the passage surface 38 at the base end portion 42 of the first inclined portion 22a. Therefore, when the wheelchair 12 existing on the ground G or the water surface is passed through the passage surface 38 and moved to the floor surface 30 of the ship bottom 20, the wheelchair 12 is easily passed through the passage surface 38.

As shown in FIG. 1, since the second inclined portion 22b is configured symmetrically with the first inclined portion 22a in the longitudinal direction of the main body portion 28, each portion of the second inclined portion 22b shown in the drawing is provided with each portion. The same signs as the corresponding parts of the first inclined portion 22a are added, and detailed description thereof will be omitted.

The ship bottom 20, the first inclined portion 22a, and the second inclined portion 22b shown in FIG. 1 are configured by using a hard urethane foam (not shown). That is, these are formed into a single rectangular plate in a plan view as a whole by filling the inside of the bag M made of polyvinyl chloride with a hard urethane foam. The overall plan view shape of the ship bottom 20, the first inclined portion 22a, and the second inclined portion 22b is not limited to a rectangle, and may be formed into a square, a circle, an ellipse, or the like, or a pentagon or an ellipse. It may be formed into a polygon such as a hexagon.

The bag body M is formed by joining two peripheral portions of polyvinyl chloride sheet materials (not shown) arranged so as to face each other. A large number of threads made of polyester or glass fiber are provided between the two sheet materials, and the two sheet materials are connected to each other by these threads. Further, an injection port P for filling the hard urethane foam is provided in a portion of the bag body M that constitutes the floor surface 30 of the ship bottom 20. The outer surface of the bag M, which faces at least upward, is formed as a rough surface in order to prevent the wheelchair 12 (FIG. 2) from slipping.

When manufacturing the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b, a mold (not shown) having a cavity having the same shape as these is prepared, and then a bag body is provided inside the cavity. Place M. After that, the inside of the bag M is filled with a hard urethane foam from the injection port P. Then, the two sheet materials constituting the bag body M are pressed against the inner surface of the cavity by the pressure of the hard urethane foam, and the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b are obtained.

The rigid urethane foam filled inside the bag M is a plastic foam in which closed cells are aggregated, and is a polyisocyanate having two or more NCO (isocyanate) groups and a polyol having two or more OH (hydroxyl) groups. Is mixed with a catalyst (for example, an amine compound), a foaming agent (for example, water or fluorocarbon), a foam stabilizer (for example, silicone oil), etc., and a foaming reaction and a resinification reaction occur at the same time. Will be done. The rigid urethane foam of the present embodiment is configured to have a compressive strength (10% compression) of at least 2.0 kgf / cm2 or more.

The side wall portion 24 shown in FIG. 1 is a portion for giving buoyancy to the boat 10 and preventing water from entering the floor surface 30, and the first side wall portion 24a facing each other across the floor surface 30 and the side wall portion 24a. It has a second side wall portion 24b. The first side wall portion 24a and the second side wall portion 24b are configured to be symmetrical with each other in the width direction of the main body portion 28. As shown in FIG. 2, the distance W3 between the first side wall portion 24a and the second side wall portion 24b is slightly longer than the width W of the wheelchair 12.

As shown in FIG. 1, the first side wall portion 24a includes a first portion 20a provided with a first inclined portion 22a on the peripheral edge portion of the ship bottom 20 and a second portion 20b provided with a second inclined portion 22b. The removed portion is provided so as to project upward from the floor surface 30. In the present embodiment, since the entire bottom 20, the first inclined portion 22a, and the second inclined portion 22b are formed in a rectangular plate shape in a plan view, the first side wall portion 24a is the length of one of the whole. It is formed in a rod shape along the sides.

The lower portion 46a of the first side wall portion 24a is formed in a shape along each of the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b, and the upper portion 46b of the first side wall portion 24a is substantially It is formed so as to extend in the horizontal direction. Further, the one end portion 46c in the longitudinal direction of the first side wall portion 24a is formed in a sharp shape at a position not reaching the tip portion 44 of the first inclined portion 22a, and the other end portion in the longitudinal direction of the first side wall portion 24a. The 46d is formed in a sharp shape at a position not reaching the tip end portion 44 of the second inclined portion 22b. Therefore, the respective tip portions 44 of the first inclined portion 22a and the second inclined portion 22b described above are formed so as to project outward from the ends 46c and 46d of the first side wall portion 24a. As shown in FIG. 4, the vertical length L1 of the first side wall portion 24a is shorter than the distance L2 from the floor surface 30 to the seat 14 of the wheelchair 12 mounted on the floor surface 30.

As shown in FIG. 2, since the second side wall portion 24b is configured symmetrically with the first side wall portion 24a in the width direction of the main body portion 28, each portion of the second side wall portion 24b shown in the drawing may have a portion. The same reference numerals as those of the corresponding portions of the first side wall portion 24a are added, and detailed description thereof will be omitted.

Each of the first side wall portion 24a and the second side wall portion 24b shown in FIG. 1 has a rod-like shape with sharp ends by filling the inside of the bag body N made of polyvinyl chloride with a hard urethane foam (not shown). Is formed in. When manufacturing the first side wall portion 24a, a mold (not shown) having a cavity having the same shape as the shape is prepared, and then the bag body N is arranged inside the cavity. After that, the inside of the bag body N is filled with a hard urethane foam from an injection port (not shown). Then, the sheet material constituting the bag body N is pressed against the inner surface of the cavity by the pressure of the hard urethane foam, and the first side wall portion 24a is obtained. The second side wall portion 24b is also manufactured in the same manner. Then, the completed first side wall portion 24a and the second side wall portion 24b are joined to the ship bottom 20, the first inclined portion 22a, and the second inclined portion 22b by using an adhesive (not shown) and an adhesive tape 50.

As shown in FIG. 1, a handle 52, a rope 54, a hook 56, and an all mounting portion 58 are provided on the upper portions of the first side wall portion 24a and the second side wall portion 24b, respectively. Further, an all-support portion 60 is provided on the inner side surfaces of each of the first side wall portion 24a and the second side wall portion 24b. The handle 52, the rope 54, and the hook 56 are parts that the user U and the assistant X grab by hand or hook a tool when using the boat 10. The all mounting portion 58 is a portion to which the all 62 is mounted when the propulsive force is obtained by the all 62. The all support portion 60 is a portion that supports the all 62 when the all 62 is not used. As a means for obtaining the propulsive force of the boat 10, a screw type outboard motor powered by a prime mover or an electric motor may be used instead of the all 62.

As shown in FIG. 3, each of the two wheel units 26 has two wheel portions 64 and a fixing portion 66 for fixing the two wheel portions 64 to the bottom surface 32 of the ship bottom 20. FIG. 5A is a front view showing the configuration of the wheel unit 26, and FIG. 5B is a bottom view showing the configuration of the wheel unit 26. As shown in FIGS. 5A and 5B, each of the two wheel portions 64 of the wheel unit 26 has a rod-shaped support portion 68 extending in the vertical direction and a wheel 70 attached to the lower end portion of the support portion 68. And a plate-shaped mounting plate 72 attached to the upper end of the support portion 68. The wheel 70 has an axle 70a that is cantilevered with respect to the support portion 68 and a tire 70b that is rotatably attached to the axle 70a. The tire 70b is a puncture-less tire whose inside is filled with a rubber material.

A double-sided structure may be used as the support structure of the axle 70a with respect to the support portion 68. However, a cantilever structure is desirable because it is difficult for dust in the water to get caught. Further, as the tire 70b, one filled with urethane resin or air in order to give buoyancy to the wheel portion 64 may be used. When the tire 70b is used, the buoyancy of the boat 10 is increased, and the wheel portion 64 that has fallen off in water can be easily recovered.

The fixing portion 66 is a plate-shaped connecting portion 76 that connects the two accommodating portions 74 accommodating the mounting plate 72 of the wheel portion 64 and the two accommodating portions 74 in the width direction of the ship bottom 20 (FIG. 3) at intervals. And a male screw member 78 that prevents the mounting plate 72 housed in the housing portion 74 from coming off. The accommodating portion 74 has an opening 74a for inserting and removing the mounting plate 72 from the bottom surface 32 (FIG. 3) of the ship bottom 20 in a parallel direction. The male screw member 78 is for fixing the mounting plate 72 to the accommodating portion 74, and is screwed into a female screw (not shown) formed on the mounting plate 72. As shown in FIG. 3, the fixing portions 66 of the two wheel units 26 are spaced apart from each other in the length direction of the ship bottom 20 so that the connecting portion 76 extends in the width direction of the bottom surface 32 of the ship bottom 20. Are arranged. Then, each fixing portion 66 is fixed to the bottom surface 32 by using an adhesive and an adhesive tape (not shown).

As shown in FIG. 4, when the wheel portion 64 is attached to the fixed portion 66 joined to the bottom surface 32 of the ship bottom 20, the axle 70a of the wheel 70 is the floor surface 30 of the ship bottom 20, the first inclined portion 22a, and the second. The inclined portion 22b is arranged so as to extend in a direction orthogonal to the continuous direction of each of the passage surfaces 38, that is, in the width direction of the ship bottom 20. Therefore, when the main body 28 is rotated around the axle 70a as a fulcrum, the first inclined portion 22a and the second inclined portion 22b constituting the end of the main body 28 are in the direction of approaching or separating from the ground G or the water surface. Move to.

As shown in FIGS. 6A and 6C, the position of each wheel unit 26 in the length direction of the bottom 20 is the first inclined portion 22a when the main body portion 28 is rotated around the axle 70a as a fulcrum. Alternatively, the tip 44 of the second inclined portion 22b is in contact with the ground G, and the passage surface 38 is defined to be continuous with the ground G on a gentle inclined surface or a horizontal plane.

The boat 10 of the present embodiment is formed in a size and weight of about 2700 mm in total length, about 1100 mm in total width, about 400 mm in height, and about 40 kg in weight. The first side wall portion 24a and the second side wall portion 24b of the boat 10 are formed so that the diameter of the thickest portion in the central portion in the longitudinal direction is about 250 mm. Further, the inclination angle α (FIG. 4) of the first inclined portion 22a and the second inclined portion 22b with respect to the horizontal plane is set to about 35 degrees.

Further, each of the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b is formed in a color different from that of the first side wall portion 24a and the second side wall portion 24b. For example, when the bottom 20, the first inclined portion 22a and the second inclined portion 22b are formed in a white (light color) color, the first side wall portion 24a and the second side wall portion 24b are red, green or the like. It is formed in the dark colors of.

(Operation of boat 10)
Next, a method will be described in which an assistant (that is, a rescuer) X who performs rescue activities in a flooded area rescues a user (that is, a rescuer) U who uses a wheelchair 12 by using a boat 10. FIG. 6A is a side view showing a stage in which the wheelchair 12 existing on the ground G is placed on the passage surface 38 of the first inclined portion 22a. FIG. 6B is a side view showing a step of moving the wheelchair 12 existing on the passage surface 38 to the floor surface 30 of the ship bottom 20. FIG. 6C is a side view showing a step of moving the wheelchair 12 existing on the floor surface 30 of the ship bottom 20 to the ground G.

When rescuing the user U in the flooded area, the assistant X first brings the boat 10 to the site of the flooded area. At this time, since the boat 10 is provided with four wheels 70 that roll on the ground G, the boat 10 can be easily carried even in a place where there is no water or a place where the water depth is shallow. At the site, the assistant X puts the wheelchair 12 on the passage surface 38 in the first stage shown in FIG. 6 (A). Subsequently, in the second step shown in FIG. 6B, the wheelchair 12 is moved to the floor surface 30. Then, after moving the boat 10 to a safe place, the wheelchair 12 is lowered to the ground G in the third stage shown in FIG. 6 (C).

In the first stage shown in FIG. 6A, the assistant X lifts one end 28a of the main body 28 and centers the axle 70a of the two wheels 70 arranged in the width direction of the main body 28. The part 28 is rotated. As a result, the tip portion 44 of the second inclined portion 22b constituting the other end portion 28b of the main body portion 28 is brought into contact with the ground G. Then, the passage surface 38 of the second inclined portion 22b becomes a gently inclined surface or a horizontal plane and is continuous with the ground G. Therefore, the user U himself / herself rotates the drive wheel 16 or, with the assistance of another assistant, moves the wheelchair 12 from the ground G to the passage surface 38.

In the present embodiment, the length of the bottom 20 and the length and inclination angle α of the first inclined portion 22a and the second inclined portion 22b are determined by the assistant X lifting one end portion 28a of the main body portion 28 and determining the main body portion 28. When the tip 44 of the second inclined portion 22b constituting the other end 28b is brought into contact with the ground G, the height H of the one end 28a is equal to the eye height of the assistant X standing upright on the ground G. Is also set to be low. Therefore, the assistant X can easily visually confirm the wheelchair 12 when moving the wheelchair 12 between the ground G and the floor surface 30 of the ship bottom 20. In the present embodiment, the first inclined portion 22a and the second inclined portion 22b are configured to be symmetrical with each other in the longitudinal direction of the main body portion 28, so that the assistant X uses the other end portion 28b of the main body portion 28. The same effect can be obtained when lifting.

In the second stage shown in FIG. 6B, the assistant X uses the principle of leverage with the axle 70a of the two wheels 70 arranged in the width direction of the main body 28 as a fulcrum, and the main body 28 is inclined. Return to horizontal. At this time, the wheelchair 12 is placed on the passage surface 38 of the second inclined portion 22b, but since the principle of leverage is used, the main body portion 28 can be easily returned to the horizontal position. When the inclined main body 28 is returned to the horizontal position, the inclination angle α (FIG. 4) of the second inclined portion 22b with respect to the horizontal plane becomes steep, so that the wheelchair 12 moves down the passage surface 38 to the floor surface 30 of the ship bottom 20. To do.

Since the boat 10 is stable when the wheelchair 12 is placed on the floor surface 30 of the bottom 20, the assistant X can easily move the boat 10 by rolling the four wheels 70. When the boat 10 is floated on the surface of the water and moved, the assistant X may board the boat 10 and row all 62, or may pull the boat 10 with a rope 54 while walking.

In the third step shown in FIG. 6C, the assistant X lifts the other end 28b of the main body 28 and lifts the tip 44 of the first inclined portion 22a constituting the one end 28a of the main body 28. It is brought into contact with the ground G. Then, the passage surface 38 of the first inclined portion 22a becomes a gently inclined surface or a horizontal plane and is continuous with the ground G. Therefore, the user U rotates the drive wheels 16 to move the wheelchair 12 existing on the floor surface 30 of the ship bottom 20 to the ground G through the passage surface 38.

(Effect of boat 10)
According to the present embodiment, the following effects can be achieved by the above configuration. That is, as shown in FIG. 1, since the first inclined portion 22a and the second inclined portion 22b are inclined obliquely upward from the bottom 20 of the ship, the tips of the first inclined portion 22a and the second inclined portion 22b are tilted by tilting the boat 10 on the ground G or the water surface. The portion 44 can be brought close to the ground G or the water surface. Further, since the passage surface 38 of the first inclined portion 22a and the second inclined portion 22b is formed so as to be connected to the floor surface 30 of the ship bottom 20 with a width that allows the wheelchair 12 to pass through, the passage surface 38 and the ship bottom 20 are formed. The wheelchair 12 can be moved to and from the floor surface 30. Therefore, the wheelchair 12 existing on the ground G or the water surface can be easily moved to the floor surface 30 of the ship bottom 20 through the passage surface 38. Further, the wheelchair 12 existing on the floor surface 30 of the ship bottom 20 can be easily moved to the ground G or the water surface through the passage surface 38.

As shown in FIG. 1, the first inclined portion 22a and the second inclined portion 22b are formed in a plate shape inclined obliquely upward from the bottom 20 of the ship, and the first side wall portion 24a and the second side wall portion 24b are formed. Since the wheelchair 12 is provided so as to project upward from the floor surface 30 of the ship bottom 20, the movement of the wheelchair 12 existing on the floor surface 30 of the ship bottom 20 can be moved by the first inclined portion 22a, the second inclined portion 22b, and the first side wall portion. It can be suppressed by the 24a and the second side wall portion 24b.

As shown in FIGS. 6A, 6B, and 6C, the wheelchair 12 mounted on the floor surface 30 of the bottom 20 is passed through the passage surface 38 of the second inclined portion 22b and passed through the first inclined portion 22a. It can be passed through the road surface 38 and lowered to the ground G or the water surface. Therefore, it is not necessary to reverse the direction of the wheelchair 12 inside the boat 10, and even when the user U is sitting on the wheelchair 12, the wheelchair 12 can be easily lowered to the ground G or the water surface.

As shown in FIG. 2, since the distance W3 between the first side wall portion 24a and the second side wall portion 24b is slightly longer than the width W of the wheelchair 12, the wheelchair 12 to the first side wall portion 24a and the second side wall portion 24a and the second side wall portion 24a. The distance to the side wall portion 24b is small, and the movement of the wheelchair 12 existing on the floor surface 30 of the ship bottom 20 can be effectively suppressed by the first side wall portion 24a and the second side wall portion 24b.

As shown in FIG. 2, the width W2 of the passage surface 38 at the tip end portion 44 of the first inclined portion 22a and the second inclined portion 22b is the passage surface 38 at the base end portion 42 of the first inclined portion 22a and the second inclined portion 22b. Since the width W1 is wider than the width W1, when the wheelchair 12 existing on the ground G or the water surface is passed through the passage surface 38 and moved to the floor surface 30 of the ship bottom 20, the wheelchair 12 can be easily passed through the passage surface 38.

As shown in FIG. 2, the tip ends 44 of the first inclined portion 22a and the second inclined portion 22b are formed so as to project outward from the ends 46c and 46d of the first side wall portion 24a and the second side wall portion 24b. Therefore, when the boat 10 is tilted, the tip portion 44 is likely to come into contact with the ground G or the water surface. Further, since the tip portion 44 of the first inclined portion 22a and the second inclined portion 22b is formed in a wedge shape that gradually becomes thinner toward the tip, when the tip portion 44 is brought into contact with the ground G, it is formed. The step generated between the ground G and the passage surface 38 can be reduced, and the wheelchair 12 can be easily moved.

As shown in FIG. 6A, when the tip portion 44 of the second inclined portion 22b is brought into contact with the ground G, the height H of one end portion 28a of the main body portion 28 is an assistant standing upright on the ground G. Since it is lower than the eye height of X, the assistant X can easily visually confirm the wheelchair 12 when moving the wheelchair 12 between the ground G and the floor surface 30 of the ship bottom 20.

As shown in FIG. 6B, after the wheelchair 12 existing on the ground G or the water surface is placed on the passage surface 38, the main body 28 can be easily operated by utilizing the principle of leverage with the axle 70a of the wheel 70 as a fulcrum. Can be leveled. Further, the wheelchair 12 existing on the passage surface 38 can be moved to the floor surface 30 of the ship bottom 20 by utilizing the inclination of the second inclined portion 22b when the main body portion 28 is horizontal.

As shown in FIG. 4, the vertical length L1 of the first side wall portion 24a and the second side wall portion 24b is from the distance L2 from the seat 14 of the wheelchair 12 mounted on the floor surface 30 of the ship bottom 20 to the floor surface 30. Even when the wheelchair 12 is placed on the floor surface 30 and only the user U gets off the boat 10, the user U can easily get over the first side wall portion 24a and the second side wall portion 24b.

Since the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b shown in FIG. 1 are made of hard urethane foam, buoyancy can be given to them to suppress subduction. As a result, the heights of the first side wall portion 24a and the second side wall portion 24b can be kept low, so that the assistant X can easily assist the movement of the wheelchair 12 from the outside of the boat 10. Further, since the rigidity of the bottom 20 can be increased as compared with a rubber boat using air, the wheelchair 12 can be stabilized on the floor surface 30 of the bottom 20. Further, even if the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b are damaged, the buoyancy of these is unlikely to be lost, and the damaged portions can be easily repaired.

The bottom 20 and the inclined portion 22 (the first inclined portion 22a and the second inclined portion 22b) shown in FIG. 1 are formed in a different color from the side wall portion 24 (the first side wall portion 24a and the second side wall portion 24b). Therefore, when the wheelchair 12 existing on the ground G or the water surface is moved to the floor surface 30 of the ship bottom 20 through the passage surface 38, the user U and the assistant X can easily grasp the positions of the ship bottom 20 and the inclined portion 22. ..

(Modification example)
The implementation of the present invention is not limited to the above-described embodiment, and various changes can be made as long as the object of the present invention is not deviated. That is, in the above embodiment, the first inclined portion 22a and the second inclined portion 22b constituting the inclined portion 22 are configured symmetrically with each other, but the first inclined portion 22a and the second inclined portion 22b are configured asymmetrically. You may. Further, either one of the first inclined portion 22a and the second inclined portion 22b may be omitted, or one or a plurality of other inclined portions may be added.

In the above embodiment, the first side wall portion 24a and the second side wall portion 24b constituting the side wall portion 24 are formed in a rod shape so as to be along the entire long side of the ship bottom 20, the first inclined portion 22a and the second inclined portion 22b. However, the first side wall portion 24a and the second side wall portion 24b may be provided only on the peripheral edge portion of the ship bottom 20. That is, the side wall portion 24 may be omitted at the peripheral edges of the first inclined portion 22a and the second inclined portion 22b. In this case, it is desirable that the main body 28 has sufficient buoyancy in order to prevent water from entering the floor surface 30.

In the above embodiment, the ship bottom 20, the first inclined portion 22a, the second inclined portion 22b, the first side wall portion 24a, and the second side wall portion 24b are configured by using a hard urethane foam. At least one may be composed of other plastic materials, wood and FRP (fiber reinforced plastic), or may be composed of a metal material such as aluminum.

In the above embodiment, the inclination angle α (FIG. 4) of the first inclined portion 22a and the second inclined portion 22b with respect to the horizontal plane is set to about 35 degrees, but the inclination angle α may be changed as appropriate. However, if the inclination angle α is too small, water easily enters the floor surface 30, and if the inclination angle α is too large, it becomes difficult for the wheelchair 12 to move. Therefore, the inclination angle α is 20 to 45 degrees. It is desirable that it is within the range of.

As shown in FIG. 3, in the above embodiment, four wheels 70 are provided on the bottom surface 32 of the ship bottom 20, but the number of wheels 70 is not particularly limited, and one, two, or three. It may be one, or five or more. Further, the wheel 70 may be omitted. However, as shown in FIG. 6B, it is desirable that the boat 10 has three or more wheels 70 in order to move the boat 10 stably on the ground G. Further, as shown in FIGS. 6 (A) and 6 (C), in order to move the wheelchair 12 by rotating the main body 28 using the principle of leverage, at least two wheels 70 are used on the main body 28. It is desirable to arrange them side by side in the width direction.

FIG. 7 is a side view showing the configuration of the boat 90 according to another embodiment of the present invention. The boat 10 of the above embodiment is formed in a size and weight of a total length of about 2700 mm, a total width of about 1100 mm, a height of about 400 mm, and a weight of about 40 kg, but the size and weight of the boat 10 may be changed as appropriate. For example, like the boat 90 shown in FIG. 6, the total length may be shorter than that of the boat 10 of the above embodiment. The boat 90 shown in FIG. 6 has a total length of about 1760 mm, a total width of about 1210 mm, and a height of about 360 mm, and the wheels 70 are omitted.

G ... ground, U ... user, X ... assistant, 10 ... boat, 12 ... wheelchair, 20 ... bottom,
22 ... Inclined portion, 22a ... First inclined portion, 22b ... Second inclined portion, 24 ... Side wall portion,
24a ... 1st side wall, 24b ... 2nd side wall, 26 ... Wheel unit, 30 ... Floor surface,
32 ... bottom surface, 38 ... passage surface, 40 ... bottom surface, 42 ... base end, 44 ... tip, 70 ... wheels,
70a ... Axle, 70b ... Tire.

Claims (11)

A plate-shaped bottom with a floor large enough to hold a wheelchair,
A plate-shaped inclined portion that has a passage surface having a width through which the wheelchair can pass and that inclines diagonally upward from the bottom of the ship while the passage surface is connected to the floor surface.
A boat provided with a side wall portion provided so as to project upward from the floor surface in a portion of the peripheral edge portion of the bottom of the ship excluding the portion provided with the inclined portion. The inclined portion is
The first inclined portion provided in the first portion which is a part of the peripheral portion of the ship bottom, and
The boat according to claim 1, further comprising a second inclined portion provided on a second portion opposite to the first portion on the peripheral edge portion of the ship bottom. The side wall portion has a first side wall portion and a second side wall portion that face each other with the floor surface interposed therebetween.
The boat according to claim 1 or 2, wherein the distance between the first side wall portion and the second side wall portion is slightly longer than the width of the wheelchair. When the portion of the inclined portion connected to the bottom of the boat is used as the base end portion and the portion opposite to the base end portion is used as the tip end portion, the width of the passage surface at the tip end portion is larger than the width of the passage surface at the base end portion. The boat according to any one of claims 1 to 3, which is also widely used. When the portion of the inclined portion connected to the bottom of the ship is used as the base end portion and the portion on the opposite side thereof is used as the tip portion, the tip portion is formed so as to project outward from the end portion of the side wall portion. , The boat according to any one of claims 1 to 4. When the portion of the inclined portion connected to the bottom of the boat is used as the base end portion and the portion on the opposite side thereof is used as the tip portion, the tip portion is formed in a wedge shape gradually thinning toward the tip. The boat according to any one of items 1 to 5. The length of the ship bottom and the length and inclination angle of the inclined portion are determined by an assistant assisting the movement of the wheelchair by lifting one end of the main body including the bottom of the ship, the inclined portion and the side wall portion. When the tip of the inclined portion constituting the other end of the portion is brought into contact with the ground, the height of the one end is made lower than the height of the eyes of the assistant standing upright on the ground. The boat according to any one of claims 1 to 6, which is defined. Wheels that roll on the ground are provided on the bottom surface of the ship bottom.
The boat according to any one of claims 1 to 7, wherein the axis of the wheel extends in a direction orthogonal to the direction in which the floor surface and the passage surface are continuous. The side wall portion has a first side wall portion and a second side wall portion that face each other with the floor surface interposed therebetween.
The wheelchair has a seat and drive wheels provided on both sides of the seat in the width direction.
Any of claims 1 to 8, wherein the length of the first side wall portion and the second side wall portion in the vertical direction is shorter than the distance from the wheelchair seat placed on the floor surface to the floor surface. Or the boat described in item 1. The boat according to any one of claims 1 to 9, wherein the bottom of the boat and the inclined portion are made of a hard urethane foam. The boat according to any one of claims 1 to 10, wherein the bottom of the ship and the inclined portion are formed in a color different from that of the side wall portion.

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