WO2018193663A1

WO2018193663A1 - Vessel

Info

Publication number: WO2018193663A1
Application number: PCT/JP2017/044057
Authority: WO
Inventors: 浜口　弘睦
Original assignee: 浜口ウレタン株式会社
Priority date: 2017-04-19
Filing date: 2017-12-07
Publication date: 2018-10-25
Also published as: JPWO2018193663A1

Abstract

Provided is a vessel of high maneuverability that is suitable for use in rescue situations. A vessel 10 comprises a hull 12, a wheel unit 16, two anchoring parts 18 provided on the lower surface of a bilge part 24, and a coupling part 20 coupling the two anchoring parts 18. The wheel unit 16 comprises a support member 44 extending in the vertical direction, a wheel 46 provided on the lower end of the support member 44, and a mounting plate 48 provided on the upper end of the support member 44. The anchoring parts 18 comprise accommodating parts 54 that accommodate the mounting plate 48, and an opening 56 for inserting and removing the mounting plate 48 into and out of the accommodating parts 54. The opening 56 opens toward the bow side (forward), which is in a direction parallel to the lower surface of the bilge part 24. The mounting plate 48 is formed in a plate shape so as to be parallel to the lower surface of the bilge part 24.

Description

Ship

The present invention relates to a boat provided with wheels for land transportation provided on a hull.

Conventionally, there is a boat equipped with wheels for land transportation, and an example thereof is disclosed in Patent Document 1 below. The boat disclosed in Patent Document 1 includes a front support body located on the bow side and a rear support body located on the stern side. The front support has a pair of stays provided on the outer surfaces of the port and starboard, and each stay is provided with a tire. The rear support has a pair of stays provided on the outer surfaces of the port and starboard, and tires are provided on each stay.

No. 7-23356

However, in the boat disclosed in Patent Document 1, the pair of front stays and the pair of rear stays are provided so as to protrude outward from the outer surfaces of the port and starboard. The size was getting bigger. For this reason, it was not suitable for use in disaster relief sites where navigation during navigation was difficult and the route was restricted by floating objects.

The present invention has been made to cope with the above-described problems, and has an object to provide a boat that has a high turnability and is suitable for use at a disaster rescue site.

In order to achieve the above object, the characteristics of a boat according to the present invention are provided on a hull having a bottom part, a bow part, a port part, a starboard part and a stern part, a wheel unit, and a bottom surface of the ship bottom part. The wheel unit includes a support extending in the vertical direction, a wheel provided at the lower end of the support, and a plate-like mounting plate provided at the upper end of the support. The fixing portion has a housing portion for housing the mounting plate, and an opening portion that opens in a direction parallel to the lower surface of the bottom of the ship and allows the mounting plate to be taken in and out of the housing portion. There is in doing.

In this configuration, since the fixing portion for fixing the wheel unit is provided on the lower surface of the bottom of the ship, the wheel unit and the fixing portion do not protrude outward from the outer surfaces of the port and starboard portions. Therefore, since the size of the ship in the left-right direction is not increased and the turning ability is high, it is suitable for use at a disaster rescue site. Since the opening of the fixed part is opened in a direction parallel to the lower surface of the ship bottom, the attachment plate can be easily put in and out of the opening.

Another feature of the boat according to the present invention is that the opening is opened toward the bow side.

When a boat sails on the water with the wheel unit fixed to the bottom of the ship, water pressure acts on the wheel unit from the front in the traveling direction (that is, the bow side). In the above configuration, since the opening is opened toward the bow, when the water pressure is applied to the wheel unit from the front, the mounting plate is pushed to the opposite side of the opening and is detached from the housing. hard.

Another feature of the boat according to the present invention is that the mounting plate is formed in a square flat plate shape.

In this configuration, even when the wheel unit is rotated 90 degrees, 180 degrees, and 270 degrees around the axis of the support body, the appearance of the mounting plate does not change, and the mounting plate is accommodated at each of these angles. Can be accommodated in a part. Therefore, for example, when it is desired to switch the rolling direction of the wheel from the “front-rear direction” to the “left-right direction”, it can be easily handled by rotating the wheel unit by 90 degrees or 270 degrees.

Another feature of the boat according to the present invention is that the fixing portion includes a first state in which the attachment plate is prevented from moving toward the opening and a second state in which the attachment plate is allowed to move toward the opening. It is in having a movement prevention part constituted so that it can take selectively.

In this configuration, when the movement blocking portion is in the first state, it is possible to prevent the mounting plate from being detached from the housing portion, and it is possible to prevent the wheel unit from being detached from the ship bottom. On the other hand, when the movement blocking portion is in the second state, the mounting plate can be detached from the housing portion, and the wheel unit can be removed from the ship bottom.

Another feature of the boat according to the present invention is that the housing portion has a base portion that faces the mounting plate from above and a plate receiving portion that faces the mounting plate from below, and the movement blocking portion is a male screw. And a screw hole formed in the mounting plate, and the tip of the male screw portion screwed into the screw hole from below is pressed against the base, whereby the lower surface of the mounting plate is brought into contact with the plate receiving portion. It is to be pressed.

In this configuration, the movement blocking portion can be easily configured by the male screw portion and the screw hole. In the first state, the male screw portion is screwed into the screw hole of the mounting plate from below, and the distal end portion of the male screw portion is pressed against the base portion. Thereby, the lower surface of the mounting plate is pressed against the plate receiving portion, and the mounting plate cannot move to the opening side. When the male screw part is loosened from the first state, the state of the movement blocking part is switched to the second state. That is, the distal end portion of the male screw portion is separated from the base portion, and the force that presses the lower surface of the mounting plate against the plate receiving portion is released.

Another feature of the boat according to the present invention is that the housing portion has a base portion that faces the mounting plate from above and a plate receiving portion that faces the mounting plate from below, and the movement blocking portion is a male screw. Part, a first screw hole formed in the mounting plate, and a second screw hole formed in the base, and the male screw part screwed into the first screw hole from below is the second screw hole. It is to be screwed.

In this configuration, the movement blocking portion can be easily configured by the male screw portion, the first screw hole, and the second screw hole. In the first state, the male screw portion is screwed into the first screw hole from below and is further screwed into the second screw hole. Therefore, the male screw portion can be held by the two screw holes, and the male screw portion is difficult to drop off. When the male screw part is loosened from the first state, the male screw part is detached from the second screw hole, and the state of the movement blocking part is switched to the second state.

Another feature of the boat according to the present invention is that it includes a connecting portion that extends in the left-right direction on the lower surface of the bottom of the ship, and one of the two fixing portions is provided at the left end of the connecting portion. The other of the two fixed parts is that it is provided at the right end of the connecting part.

In this configuration, since the two fixing portions are connected by the connecting portion, the positioning operation of each fixing portion is easy, and the two fixing portions can be easily attached to the lower surface of the ship bottom portion. In addition, since the bottom of the ship can be reinforced by the connecting portion, the bottom of the ship is not easily deformed even when the ship is transported on land with a sick person or an injured person on the ship.

FIG. 1A is a perspective view illustrating a configuration of a boat according to an embodiment of the present invention, and FIG. 1B is a front view illustrating a configuration of a boat according to an embodiment of the present invention. 2A is a front view showing the configuration of the transport unit, FIG. 2B is a plan view showing the configuration of the transport unit, and FIG. 2C is a bottom view showing the configuration of the transport unit. FIG. It is a disassembled perspective view which shows the structure of a wheel unit and a fixing | fixed part. It is the elements on larger scale which show the structure of a movement prevention part. It is a disassembled perspective view which shows the method of changing the direction where a wheel rolls. It is a top view which shows the structure of another conveyance unit. FIG. 7A is a partial enlarged view showing the configuration of another movement blocking unit, and FIG. 7B is a partial enlarged view showing the configuration of still another movement blocking unit, and FIG. These are bottom views which show the structure of the further another movement prevention part. FIG. 8 (A) is a front view showing the configuration of a boat according to another embodiment of the present invention, and FIG. 8 (B) is a plan view showing the configuration of a boat according to another embodiment of the present invention. FIG.

Hereinafter, an embodiment of a boat according to the present invention will be described with reference to the drawings. In the following description, the width direction of the boat is “left-right direction”, and the direction orthogonal to “left-right direction” is “front-rear direction”. These directions coincide with the directions indicated by arrows in the drawing.

(Configuration of boat 10)
FIG. 1A is a perspective view showing the configuration of the boat 10 according to the embodiment of the present invention, and FIG. 1B is a front view showing the configuration of the boat 10. A boat 10 shown in FIGS. 1 (A) and 1 (B) is a rowing boat used by a fire department or police at a disaster rescue site, and includes a hull 12, a wheel unit 16, a fixing portion 18, And a connecting portion 20.

As shown in FIGS. 1 (A) and 1 (B), the hull 12 includes a ship bottom 24, a bow 26 and a stern 28 that constitute the “bottom”, “bow”, and “stern” of the boat 10; The boat 10 has a port part 30 and a starboard part 32 constituting the “port” and “starboard”. In the present embodiment, the bow portion 26 and the stern portion 28 are formed in substantially the same shape, and the hull 12 from which the wheel unit 16 is removed can be used without being aware of the front-rear direction.

Each of the ship bottom portion 24, the bow portion 26 and the stern portion 28 is rectangular in a plan view by filling a foam material made of hard urethane or the like between two sheet-like skin materials made of polyvinyl chloride or the like. It is formed as a single continuous plate. The bow portion 26 is formed to extend obliquely upward from the bow-side end portion of the ship bottom portion 24, and the stern portion 28 is formed to extend obliquely upward from the stern-side end portion of the boat bottom portion 24.

Each of the port part 30 and the starboard part 32 is formed in a cylindrical shape extending in the front-rear direction by filling a foam material made of hard urethane or the like inside a bag-like skin material made of polyvinyl chloride or the like. The port part 30 is bonded to the port side ends of the ship bottom part 24, the bow part 26 and the stern part 28, and the starboard part 32 is a starboard part of the ship bottom part 24, the bow part 26 and the stern part 28, respectively. Bonded to the side edge. In addition, each of the ship bottom part 24, the bow part 26, the stern part 28, the port part 30, and the starboard part 32 can be replaced with a foam material and can be configured. Further, the hull 12 can be entirely made of a resin material such as FRP (fiber reinforced plastic) or a metal material.

As shown in FIGS. 1A and 1B, a handle 34, a rope 36, a hook 38, and an all attachment part 40 are provided on the port part 30 and the starboard part 32, respectively. All 42 is detachably held on the inner part of the portion 32. The handle 34, the rope 36, and the hook 38 are parts that are used by being gripped or hooked when the boat 10 is used. The all attaching part 40 is a part for attaching the all 42 when rowing the boat 10 using the all 42. The all 42 is a tool used when rowing the boat 10.

2A is a front view showing the configuration of the transport unit 22, FIG. 2B is a plan view showing the configuration of the transport unit 22, and FIG. 2C is the configuration of the transport unit 22. FIG. FIG. 3 is an exploded perspective view showing the configuration of the wheel unit 16 and the fixed portion 18.

1 is provided with two wheel units 16 and two fixed portions 18. As shown in FIGS. 2A, 2 </ b> B, and 2 </ b> C, in this embodiment, the transport unit 22 is configured by the two wheel units 16, the two fixing portions 18, and the connecting portion 20. Yes. Below, each said component which comprises the conveyance unit 22 is demonstrated in detail.

As shown in FIG. 3, the wheel unit 16 includes a support body 44 extending in the vertical direction, a wheel 46 provided at a lower end portion of the support body 44, and a ship bottom portion 24 (see FIG. )) And a flat mounting plate 48 provided so as to be parallel to the lower surface.

The support body 44 shown in FIG. 3 is a cylindrical bar made of a metal such as stainless steel, and a through hole 44 a through which the shaft 46 a of the wheel 46 is inserted is formed at the lower end of the support body 44. It is formed to extend in a direction orthogonal to the length direction (vertical direction). The cross-sectional shape of the support body 44 is not particularly limited, and may be formed in a square shape, other polygonal shapes, or the like. However, since the resistance in water can be reduced, it is desirable to form a circle or an ellipse.

3 has a shaft 46a and a tire 46b that is rotatably supported by the shaft 46a. The shaft 46a is a “cantilever shaft” whose one end is fixed to the support body 44, and is difficult to catch underwater dust and the like. The tire 46b is a puncture tire filled with a rubber material. The tire unit 46b may be filled with urethane resin or air, and the wheel unit 16 may be configured to float on water as a whole. In this case, the buoyancy of the boat 10 can be improved, and the wheel unit 16 can be easily recovered even when the wheel unit 16 falls off the boat 10 in water.

The mounting plate 48 shown in FIG. 3 is a flat plate member made of a metal such as stainless steel, and is orthogonal to the two

sides

48 a and 48 b extending in a direction parallel to the shaft 46 a of the wheel 46 and the shaft 46 a of the wheel 46. It is formed in a square shape having two

sides

48c and 48d extending in the direction. The mounting plate 48 is formed with four screw holes 50a to 50d penetrating in the thickness direction. Each of the four screw holes 50a to 50d is disposed at a position slightly separated from the center of each of the four sides 48 to 48d toward the central axis.

As shown in FIG. 3, the mounting plate 48 is joined to the upper end surface of the support body 44 by welding or the like so that the center axis thereof coincides with the center axis of the support body 44. Therefore, even when the support body 44 is rotated by 90 degrees, 180 degrees, and 270 degrees around its central axis, the appearance of the mounting plate 48 does not change.

3 includes an accommodation portion 54 for accommodating the attachment plate 48, an opening portion 56 for inserting / removing the attachment plate 48 into / from the accommodation portion 54, and an attachment plate 48 accommodated in the accommodation portion 54. And a movement preventing portion 58 that can prevent movement toward the 56 side.

The accommodating portion 54 includes a base portion 60 facing the mounting plate 48 from above and three

side wall portions

62a and 62b provided in a U shape on the lower surface of the base portion 60 so as to face each of the three end surfaces of the mounting plate 48. , 62c and two

plate receiving portions

64a, 64b facing the mounting plate 48 from below.

The base 60 is a flat plate member made of a metal such as stainless steel and is larger than the mounting plate 48. Each of the three

side wall portions

62a, 62b, 62c is a rod-like or plate-like member made of a metal such as stainless steel, and is joined to the lower surface of the base portion 60 by welding or the like. Each of the two

side wall portions

62b and 62c arranged to face each other has a protruding portion that protrudes inside the accommodating portion 54 at the lower end portion thereof, and these protruding portions are

plate receiving portions

64a and 64b. It has become. That is, in the present embodiment, the

side wall portions

62b and 62c and the

plate receiving portions

64a and 64b are integrally formed as a member having an L-shaped cross section.

As shown in FIG. 3, the opening 56 is formed by the ship bottom portion 24 (FIG. 1A) by the front end portions of the two

side wall portions

62 b and 62 c and the front end portions of the two plate receiving portions 64 a and 64 b. ) To open in a direction parallel to the lower surface. In this embodiment, it is comprised so that it may open toward the bow part 26 (FIG. 1 (A)) side.

FIG. 4 is a partially enlarged view showing the configuration of the movement prevention unit 58. 3 and 4 includes a male screw portion 70 and a screw hole 50a formed in the attachment plate 48, and prevents the attachment plate 48 from moving to the opening 56 side. The first state (FIG. 4) and the second state (FIG. 3) allowing the movement of the mounting plate 48 toward the opening 56 are selectively configured.

As shown in FIG. 4, in the first state, the male screw portion 70 of the movement preventing portion 58 is screwed into the screw hole 50 a of the mounting plate 48 from below, and the distal end portion 70 a of the male screw portion 70 is the base portion 60. It is pressed against. Thereby, the lower surface of the mounting plate 48 is pressed against the

plate receiving portions

64a and 64b, and the mounting plate 48 cannot move to the opening 56 side. When the male screw part 70 is loosened from the first state, the state of the movement blocking part 58 is switched to the second state. That is, the distal end portion 70a of the male screw portion 70 is separated from the base portion 60, and the force that presses the lower surface of the mounting plate 48 against the

plate receiving portions

64a and 64b is released.

2 (A), 2 (B), and 2 (C) connect the two fixing portions 18 with an interval in the left-right direction, and the bottom portion 24 (FIG. 1 (A)) is connected. The lower surface is provided extending in the left-right direction. One of the two fixing portions 18 is provided at the left end portion of the connecting portion 20, and the other of the two fixing portions 18 is provided at the right end portion of the connecting portion 20.

The connecting portion 20 of the present embodiment has two connecting

plates

20a and 20b made of metal such as stainless steel. Each of the two connecting

plates

20a, 20b extends in the left-right direction, and is provided at an interval in the front-rear direction. One of the two fixing portions 18 is joined to the lower surface of the left end of each of the two connecting

plates

20a and 20b by welding or the like, and the other of the two fixing portions 18 is the two connecting

plates

20a and 20b. It is joined to the lower surface of each right end part of this by welding etc.

When the transport unit 22 shown in FIGS. 2A, 2B, and 2C is attached to the lower surface of the ship bottom 24 shown in FIG. 1A, first, a connecting portion provided with two fixing portions 18 is provided. 20 is positioned on the lower surface of the ship bottom 24, and the upper surfaces of the two connecting

plates

20a and 20b are bonded to the lower surface of the ship bottom 24 (FIG. 1A). Further, the peripheral edge portions of the two connecting

plates

20a and 20b and the peripheral edge portions of the two fixing portions 18 (FIG. 3) are attached to the ship bottom portion 24 (FIG. 1A) using an adhesive tape (not shown). ). Subsequently, the mounting plates 48 of the two wheel units 16 are inserted into the receiving portions 54 of the two fixing portions 18 from the openings 56, and then the movement preventing portion 58 is set to the first state (FIG. 4). The separation of the plate 48 is prevented. In addition, although the attachment position of the wheel unit 16, the fixing | fixed part 18, and the connection part 20 with respect to the ship bottom part 24 (FIG. 1 (A)) is not specifically limited, it is back (or the front-back direction center part of the hull 12 (or). By attaching to the front side, it becomes easy to load and unload the load on land, and to make the boat 10 run as a wheelbarrow, and it is possible to suppress catching of underwater dust and the like during navigation on the water.

(Operation of boat 10)
When the boat 10 shown in FIGS. 1A and 1B is used, the user or the like lifts and pulls the bow 26 to roll the two wheels 46 to transport the boat 10 on the ground. The boat 10 is thrown on the water surface such as a disaster rescue site. As shown in FIG. 1 (B), in the boat 10, since the wheel unit 16 and the fixed portion 18 do not protrude outward from the outer surfaces of the port portion 30 and the starboard portion 32, there are floating substances on the water surface. Even in these cases, these do not interfere with navigation. When replacing an injured person or the like who has been rescued by the ship 10 with an ambulance or the like waiting on the land, the user or the like lifts and pulls the bow 26 to roll the two wheels 46 to roll the ship 10. Raise the to the land and run on land.

FIG. 5 is an exploded perspective view showing a method of changing the direction in which the wheel 46 rolls. As shown in FIG. 3, since the mounting plate 48 is formed in a square flat plate shape, the mounting plate 48 can be mounted even when the wheel unit 16 is rotated 90 degrees, 180 degrees, and 270 degrees about the axis of the support body 44. The appearance state of the plate 48 does not change, and the mounting plate 48 can be accommodated in the accommodating portion 54 even at each of these angles. Therefore, for example, when it is desired to switch the rolling direction of the wheel 46 from the “front / rear direction” shown in FIG. 3 to the “left / right direction”, the wheel unit 16 is rotated 90 degrees or 270 degrees as shown in FIG. Can be easily handled. Further, the boat 10 can be used in a state where it is detached from the fixed portion 18 when the wheel unit 16 is not necessary.

(Effect of embodiment)
According to the present embodiment, the following effects can be achieved by the above configuration. That is, as shown in FIG. 1 (B), since the fixing portion 18 for fixing the wheel unit 16 is provided on the lower surface of the ship bottom portion 24, the wheel unit 16 and the fixing portion 18 include the port portion 30 and the starboard portion 32. Do not protrude outward from the outer surface of each. Accordingly, the size of the boat 10 in the left-right direction is not increased and the turning ability is high, which is suitable for use at a disaster rescue site.

As shown in FIG. 4, since the opening 56 of the fixed portion 18 is opened in a direction parallel to the lower surface of the ship bottom 24, it is easy to put the mounting plate 48 in and out of the opening 56.

As shown in FIG. 3, since the opening portion 56 is opened toward the bow portion 26 side (forward), even when water pressure acts on the wheel unit 16 from the front, the mounting plate 48 is different from the opening portion 56. It will be pushed to the opposite side (rear) and will not easily be detached from the accommodating portion 54.

As shown in FIGS. 2 (A), (B), and (C), since the two fixing portions 18 are connected by the connecting portion 20, positioning work of each fixing portion 18 is easy, and the ship bottom portion 24 ( Two fixing portions 18 can be easily attached to the lower surface of FIG. Moreover, since the ship bottom part 24 can be reinforced by the connecting part 20, the ship bottom part 24 is not easily deformed even when the ship 10 is transported on land with a sick person or an injured person on the ship.

(Modification)
In carrying out the present invention, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention. FIG. 6 is a plan view showing the configuration of another transport unit 76. FIG. 7A is a partial enlarged view showing the configuration of another movement blocking unit 86, and FIG. 7B is a bottom view showing the configuration of still another movement blocking unit 98.

As shown in FIG. 3, in the transport unit 22 (FIG. 2B) of the above-described embodiment, the opening 56 of the fixed portion 18 is configured to open toward the bow portion 26 side (forward). 6, the opening 80 of the fixing portion 78 may be configured to open toward the outside in the left-right direction (the port side or the starboard side). In this case, an occupant on the boat 10 can easily attach and detach the wheel unit 16. Further, the opening 80 of the fixing portion 78 may be configured to open toward the stern side (the rear side of the boat 10). In this case, when an obstacle is caught on the wheel unit 16 during the navigation of the boat 10, the wheel unit 16 can be easily detached from the fixed portion 18, and the hindrance to the navigation of the boat 10 can be solved. .

As shown in FIG. 4, in the fixing portion 18 of the above embodiment, the movement preventing portion 58 has a male screw portion 70 and a screw hole 50 a formed in the mounting plate 48. ), The movement preventing portion 86 has a male screw portion 88, a first screw hole 90 a formed in the mounting plate 90, and a second screw hole 92 a formed in the base portion 92. Good. In the movement blocking portion 86, the male screw portion 88 screwed from below into the first screw hole 90a is screwed into the second screw hole 92a. Therefore, the male screw portion 88 can be held by the two

screw holes

90a and 92a, and the male screw portion 88 is difficult to drop off.

In this case, as shown in FIG. 7B, the base 92 may form a drill hole 92b instead of the second screw hole 92a. The drill hole 92 b is a through hole having an inner diameter larger than the outer diameter of the male screw portion 88. In the movement blocking portion 86, the tip end portion of the male screw portion 88 enters the drill hole 92b, so that the displacement of the mounting plate 90 with respect to the base portion 92 can be prevented in the same manner as the second screw hole 92a. . In this case, the distal end portion of the male screw portion 88 may or may not be in contact with the base portion 88. Further, a drill hole (not shown) similar to the drill hole 92 b may be formed in the connecting portion 20 so as to hit or enter the ship bottom portion 24.

As shown in FIG. 7C, the movement preventing portion 98 has a screw hole 104 formed in a portion corresponding to the opening 102 of the base portion 100 and a male screw portion 106 screwed into the screw hole 104. May be. In the movement preventing portion 98, the male screw portion 106 screwed into the screw hole 104 can serve as a stopper to prevent the attachment plate 108 from moving toward the opening portion 102.

In the above embodiment, the two wheels 46 are provided on the hull 12 using the two wheel units 16 and the two fixed portions 18, but the number thereof is not particularly limited. For example, the four wheels 46 may be provided on the hull 12 using the four wheel units 16 and the four fixing portions 18. Further, the connecting portion 20 can be provided at the center in the front-rear direction of the hull 12. That is, the attachment position and the number of attachments of the fixed part 18 can be freely set. In this case, by providing five or more fixing portions 18 at different positions on the ship bottom 24, it is possible to attach and use an optimal number of wheel units 16 at an optimal position according to the situation at the site of use. it can.

In the above embodiment, a “cantilever shaft” is used as the shaft 46a of the wheel 46, but a “both shaft” may be used instead. Further, the connecting portion 20 that connects the two fixing portions 18 may be omitted. In addition to the cylindrical member, the support body 44 may be formed in a columnar shape, a prismatic shape, or a plate shape.

In the above embodiment, the mounting plate 48 is formed in a square shape. However, the attachment plate 48 only needs to be formed in a plate shape, and can be formed in various shapes such as a shape other than a square, a rectangle, and a triangle. When the attachment plate 48 is formed in a triangular shape, the side wall 62a can be omitted by providing the

side walls

62b and 62c in a V shape.

FIG. 8 (A) is a front view showing the configuration of a boat 110 according to another embodiment of the present invention, and FIG. 8 (B) is a plan view showing the configuration of the boat 110. In the boat 10 according to the embodiment shown in FIGS. 1A and 1B, the hull 12 is configured as a rowing boat. For example, the boat shown in FIGS. 8A and 8B. Like 110, the hull 112 may be configured as a boat to which the propulsion device 114 can be mounted.

8A and 8B, the boat 110 includes a hull 112, a propulsion device 114, a wheel unit 16, a fixed portion 18, and a connecting portion 20. The two wheel units 16, the two fixing portions 18, and the connecting portion 20 constitute a transport unit 22. In addition, since the wheel unit 16, the fixing | fixed part 18, the connection part 20, and the conveyance unit 22 are comprised similarly to the said embodiment, these description is abbreviate | omitted by attaching | subjecting the same reference number.

As shown in FIGS. 8A and 8B, the hull 112 includes a plate-shaped ship bottom portion 124 that constitutes the “ship bottom” of the boat 110, the “bow”, “port”, and “starboard” of the boat 110. , And a plate-shaped stern portion 132 constituting a “stern” of the boat 110.

The ship bottom portion 124 is formed in a rectangular plate shape in plan view by filling a foam material (not shown) made of hard urethane or the like between two sheet-like skin materials made of polyvinyl chloride or the like. Yes. Each of the bow part 126, the port part 128 and the starboard part 130 is filled with a foam material (not shown) made of hard urethane or the like inside a bag-like skin material made of polyvinyl chloride or the like. It is formed in a cylindrical shape extending along the peripheral edge. The stern part 132 is formed in a flat plate shape with synthetic resin, metal, or the like. In addition, the ship bottom part 124, the bow part 126, the port part 128, and the starboard part 130 can be configured by putting air in place of the foam material. Further, the hull 112 can be entirely made of a resin material such as FRP (fiber reinforced plastic) or a metal material.

As shown in FIG. 8 (B), the bow portion 126, the port portion 128 and the starboard portion 130 are integrally formed so as to be U-shaped in a plan view, and these are the peripheral edges of the ship bottom portion 124. Bonded to the part. The stern portion 132 is disposed between the rear end portions of the port portion 128 and the starboard portion 130 so as to be perpendicular to the front-rear direction. The left end portion 132 a of the stern portion 132 is bonded to the port portion 128, and the right end portion 132 b of the stern portion 132 is bonded to the starboard portion 130.

The propulsion device 114 shown in FIGS. 8A and 8B is a device that generates the propulsive force of the boat 110. As shown in FIG. 8A, the water suction port 136, the injection nozzle 138, and the impeller (Not shown) and an engine 140 for rotating the impeller. The propulsion device 114 is attached to the stern part 132. Note that an electric motor may be used as a power unit of the propulsion device 114 instead of the engine 140.

In the boat 110 shown in FIGS. 8A and 8B, since the propulsion device 114 is attached to the stern portion 132, in order to receive the load of the propulsion device 114 by the wheel unit 16 efficiently, It is desirable to provide the wheel unit 16, the fixed portion 18, and the connecting portion 20 in a portion near the stern portion 132.

DESCRIPTION OF SYMBOLS 10 ... Ship, 12 ... Hull, 16 ... Wheel unit, 18 ... Fixed part, 20 ... Connection part,
24 ... Ship bottom portion, 26 ... Bow portion, 28 ... Stern portion, 30 ... Port side portion, 32 ... Starboard portion, 44 ... Support, 46 ... Wheel, 48 ... Mounting plate, 54 ... Housing portion, 56 ... Opening portion

Claims

A hull having a bottom part, a bow part, a port part, a starboard part and a stern part;
A wheel unit,
Provided on the lower surface of the bottom of the ship, comprising a fixing portion for fixing the wheel unit to the bottom of the ship,
The wheel unit has a support extending in the vertical direction, a wheel provided at the lower end of the support, and a flat mounting plate provided at the upper end of the support,
The fixing portion includes a housing portion that houses the mounting plate, and an opening portion that opens in a direction parallel to the lower surface of the bottom portion of the ship and that allows the mounting plate to be taken in and out of the housing portion. A boat.
The boat according to claim 1, wherein the opening is opened toward the bow side.
The boat according to claim 1 or 2, wherein the mounting plate is formed in a square flat plate shape.
The fixing portion can selectively take a first state in which the attachment plate is prevented from moving toward the opening and a second state in which the attachment plate is allowed to move toward the opening. The boat according to any one of claims 1 to 3, further comprising a configured movement preventing portion.
The housing portion includes a base portion facing the mounting plate from above, and a plate receiving portion facing the mounting plate from below,
The movement prevention part has a male screw part and a screw hole formed in the mounting plate,
The boat according to claim 4, wherein a lower surface of the mounting plate is pressed against the plate receiving portion by pressing a distal end portion of the male screw portion screwed into the screw hole from below into the base portion.
The housing portion includes a base portion facing the mounting plate from above, and a plate receiving portion facing the mounting plate from below,
The movement blocking part has a male screw part, a first screw hole formed in the mounting plate, and a second screw hole formed in the base part,
The boat according to claim 4, wherein the male screw portion screwed into the first screw hole from below is screwed into the second screw hole.
A connecting portion provided in the left and right direction on the bottom surface of the bottom of the ship,
One of the two fixed parts is provided at the left end of the connecting part,
The boat according to any one of claims 1 to 6, wherein the other of the two fixed portions is provided at a right end portion of the connecting portion.