JP5065536B1 - Float ship - Google Patents

Abstract

A float type ship having a center float and a pair of left and right side floats, having high hull stability and high turning performance.
A pair of left and right side floats 1L, 1R, a center float 2 disposed between the left and right side floats 1L, 1R in front view and positioned in front of the side floats 1L, 1R, and the three floats In a float type ship provided with a main body frame 3 for connecting 1L, 1R, and 2 and extending in the front-rear direction and fixed to a lower surface side of the hull with the left and right sides protruding, the stabilizer 6 is attached to the hull. The stabilizer 6 is disposed at a position lower than the center float 2 on the front side, and the stabilizer 6 is formed in a reverse taper shape in which the left and right widths gradually increase toward the front.
[Selection] Figure 5

Description

  The present invention relates to a float type ship.

  A float shown in Patent Document 1 including a pair of left and right side floats, a center float disposed between the left and right side floats in front view and positioned in front of the side floats, and a main body frame connecting the three floats Type vessels are known.

  Further, a float type ship shown in Patent Document 2 in which a flat stabilizer extending in the front-rear direction is attached and fixed to the lower surface of the hull with both left and right sides protruding is also known.

JP 2009-101752 A Japanese Utility Model Publication No. 53-126288

The float type ship of the above-mentioned patent document 2 has a stabilization plate that protrudes on both the left and right sides at the center of the hull bottom surface, and the left and right shaking due to waves and the like is reduced, while the hull stability is improved when stopping or going straight. There is a problem that the float provided to secure the buoyancy of the steel becomes resistance and the turning performance is low.
An object of the present invention is to provide a float type ship that includes a center float and a pair of left and right side floats, has high hull stability, and high turning performance.

  In order to solve the above problems, first, a center float that is disposed between a pair of left and right side floats 1L and 1R and the left and right side floats 1L and 1R in front view and is located in front of the side floats 1L and 1R. 2 and a main body frame 3 for connecting the three floats 1L, 1R, 2 to each other, and a plate-shaped stabilizer 6 extending in the front-rear direction is attached and fixed to the lower surface of the hull with both left and right sides protruding. The stabilizing plate 6 is arranged at a position lower than the center float 2 on the front side of the hull, and the stabilizing plate 6 is formed in a reverse taper shape in which the left and right widths gradually increase toward the front.

  Second, stabilizing plates 4L and 4R are provided at the left and right positions on the rear side of the hull and lower than the side floats 1L and 1R, respectively, and the left and right stabilizing plates 4L and 4R are directed forward in the lateral width. It is characterized by being formed into a tapered shape that becomes gradually narrower.

  Thirdly, the left and right stabilizing plates 4L and 4R are respectively inclined downward inward in the left-right direction when viewed from the back.

  Fourthly, the left and right stabilizing plates 4L and 4R are each inclined inward in the left-right direction toward the front in a plan view.

  Fifth, it is characterized in that protective plates 13 and 16 having both surfaces facing up and down are arranged in front of the floats 1L, 1R and 2.

  Sixth, the protective plate 13 positioned in front of the center float 2 is inclined obliquely upward and forward, and the protective plate 16 positioned in front of the side floats 1L and 1R is formed in the horizontal direction. Yes.

  Seventh, the riding part 7 is installed at a rearward position on the main body frame 3, and an attachment part 17 for attaching the outboard motor 8 is formed at the rear end part of the riding part 7. The anti-theft cover 23 is provided on the side of the attaching portion 17 to cover at least a part of the attaching portion to the anti-theft and prevent theft.

  Eighth, a fixing bolt 31 and a fixing nut 32 for fixing the anti-theft cover 23 to the mounting portion 17 are provided, and a lock nut 33 for locking the fixing bolt 31 and the fixing nut 32 in a tightened state is fixed. The bolt 31 is provided on the side of the fixing nut 32 engaged.

  Ninth, the stabilizers 4L, 4R, 6 are fixedly attached to the lower end of the support member 12 extending downward from the lower surface of the main body frame 3, and the arrangement hole 12a is formed in the support member 12. The feature is that the floats 1L, 1R, and 2 are arranged in the space in 12a.

Tenth, is characterized by installing the riding section 7 in the position deviation after on the body frame 3, the float 1L, 1R, 2 and provided with a storage mechanism for folding the riding section 7 side to the upper pivot .

  A stabilizing plate for improving the stability of the hull is arranged at a position on the front side of the hull and lower than the center float, and the stabilizing plate is formed in a reverse taper shape in which the left and right widths gradually increase toward the front. The shape stabilizing plate acts so as to assist the quick turning of the hull, so that the turning performance is improved.

  In addition, a stabilizer is provided at each of the left and right positions on the rear side of the hull and lower than the side float, and the left and right stabilizers are formed into a tapered shape in which the left and right widths gradually narrow toward the front. Accordingly, straight running performance is ensured by the left and right tapered stabilizers disposed on the rear side.

  Further, when the left and right stabilizing plates are inclined downward toward the inner side in the left-right direction when viewed from the rear, the hull is tilted in the turning direction when turning, and the turning performance is further improved.

  Further, when the left and right stabilizers are inclined inward in the left-right direction toward the front in a plan view, the straight running performance is further improved by the left and right stabilizers.

  In addition, according to what arrange | positioned the protection plate which both surfaces faced up and down ahead of the float, damage to a float is prevented and durability improves.

  In addition, the protective plate located in front of the center float is inclined forward and obliquely upward, and the protective plate located in front of each side float is formed in the horizontal direction. The stability is improved by the left and right protection plates on the rear side. Since the protective plate for protecting the float also serves as a member for adding the running characteristics of the hull, the number of parts is reduced and the configuration is simplified.

  Further, the boarding portion is installed at a rearward position on the main body frame, an attachment portion for attaching the outboard motor to the rear end portion of the riding portion is formed, and at least a part of the attachment portion to the attachment portion of the outboard motor is formed. The anti-theft of the outboard motor can be efficiently prevented by providing the anti-theft cover for preventing theft by covering the cover.

It is a rear view which shows the structure of the float type ship to which this invention is applied. It is a top view which shows the structure of the float type ship to which this invention is applied. It is a side view which shows the structure of the float type ship to which this invention is applied. (A), (B) is the side view and front view which respectively show the attachment structure of a float. It is a top view which shows the structure of three stabilizers provided in the hull. It is a side view which shows the principal part structure of a boarding part and an outboard motor. It is a plane sectional view of an antitheft cover. It is a sectional side view of an antitheft cover. It is a rear view of an antitheft cover. (A), (B) is the side view and front view which show the structure of a lock nut. (A), (B) is the top view and back view which show another embodiment of this invention.

  1 to 3 are a rear view, a plan view, and a side view showing a configuration of a float type ship to which the present invention is applied. The illustrated float type ship includes a pair of left and right side floats 1L and 1R, a center float 2 disposed between the left and right side floats 1L and 1R in front view, and positioned in front of the side floats 1L and 1R, On the main body frame 3, a plate-shaped main body frame 3 that connects the three floats 1L, 1R, 2, a plurality of plate-shaped stabilizers (stabilizing plates) 4L, 4R, 6 disposed on the lower surface side of the hull. It is equipped with the installed boarding part 7, and it drives the hull of the launch state which floated in water by three floats 1L, 1R, 2 by driving the outboard motor 8 (refer FIG. 6) by the boarding part 7 side. Let

  The main body frame 3 includes a left and right frame portion 3a that protrudes to the left and right sides, and a front and rear frame portion 3b that protrudes forward from the central portion in the left and right direction of the left and right frame portion 3a. It is formed in a left-right symmetric shape having a T shape in plan view. The main body frame 3 is composed of a metal reinforced frame, but a synthetic resin such as FRP or wood may be used as a material as long as a certain level of strength can be maintained.

  The boarding portion 7 is a hollow box having an open top, and the entire shape thereof is formed in a symmetrical rectangular parallelepiped box that is long in the front-rear direction, and is disposed at the rear of the upper surface of the main body frame 3. Yes. Specifically, the front-rear position of the rear end portion of the riding portion 7 substantially coincides with the rear end portion of the main body frame 3, and the front-rear length of the riding portion 7 is set longer than the front-rear width of the left and right frame portions 3a. The left and right width of the riding part 7 is set wider than the left and right widths of the front and rear frame parts 3 b, and the left and right center of the riding part 7 coincides with the left and right center of the main body frame 3.

  For this reason, the left and right side portions of the front portion of the lower surface of the riding portion 7 are exposed from the main body frame 3 in a bottom view, and circular insertion holes 7a and 7a are formed in the left and right exposed portions, respectively. ing. An operator or an operator in the boarding section 7 can visually observe the water surface M from the left and right insertion holes 7a. Incidentally, a storage bag 9 (see FIG. 6) described later is installed in the insertion hole 7a. Details will be described later.

  Each of the three floats 1L, 1R, 2 is a cylindrical floating body extending in the front-rear direction, and the front and rear ends of the floats 1L, 1R, 2 are rounded into a rounded shape. Each of the floats 1L, 1R, 2 is formed in a hollow shape so as to generate buoyancy in water, or is made of a material having a very low specific gravity compared to water such as foamed polystyrene.

  The center float 2 is arranged at the front part of the front and rear frame part 3 b in the main body frame 3, and the side floats 1 L and 1 R are arranged on the left and right sides of the left and right frame part 3 a in the main body frame 3, respectively. Specifically, the left and right positions of the center line S2 (see FIG. 5) of the center float 3a are made to coincide with the left and right centers of the main body frame 3, and the pair of side floats 1L and 1R are made to the center line S2 of the center float 2 Are arranged at symmetrical positions. Incidentally, in the illustrated example, the height of the center float 2 and the side floats 1L and 1R are set to be substantially the same.

  4A and 4B are a side view and a front view, respectively, showing a float mounting structure. The floats 1L, 1R, 2 are detachably bolted to the lower surface side of the main body frame 3 by U-shaped bolts 11 along the peripheral surfaces of the floats 1L, 1R, 2. One float 1L, 1R, 2 is fixedly attached to the main body frame 3 by a plurality of U-shaped bolts 11 arranged in parallel in the front-rear direction. The floats 1L, 1R, 2 may be attached and fixed to the main body frame 3 by wires (not shown) that are curved along the periphery of the floats 1L, 1R, 2.

  The stabilizers 4L, 4R, and 6 are flat metal plates extending in the front-rear direction with the left and right edges projecting to the left and right sides. The stabilizers 4L, 4R, and 6 are the hull front side and the hull rear side. Are provided individually at the left and right side positions. The stabilizers 4L, 4R, and 6 may be made of synthetic resin such as FRP, wood, or the like, instead of metal, as long as a certain level of strength can be maintained.

  FIG. 5 is a plan view showing a configuration of three stabilizers provided in the hull. As shown in FIGS. 1 to 3 and 5, the center stabilizer 6, which is a stabilizer on the front side of the hull, is positioned lower than the center float 2 and on the center line S 2 of the center float 2 (more specifically, the center (Just below the float 2).

  On the other hand, the side stabilizers 4L and 4R, which are the stabilizers on the left and right sides of the hull, are positioned lower than the side floats 1L and 1R and the rear position of the center stabilizer 6 on the center line S1 of the side floats 1L and 1R (more specifically, In other words, the pair of side stabilizers 4L and 4R are symmetrically arranged with respect to the center line S2 in the front-rear direction of the center float 2 respectively. Has been placed.

  The stabilizers 4L, 4R, 6 are fixed to the main body frame 3 by a support frame (support member) 12 made of the same material as the stabilizers 4L, 4R, 6.

  The support frame 12 is a rectangular plate-like member whose both surfaces are directed left and right and long in the front-rear direction, and extends downward from the main body frame 3. Among the four corners of the support frame 12, the front and lower corners are obliquely cut and formed, and the support frame 12 is provided with square-shaped arrangement holes 12a.

  Then, the support frame 12 is arranged such that the floats 1L, 1R, and 2 are accommodated in the arrangement holes 12a in a side view, and the center axes S1 and S2 of the floats 1L, 1R, and 2 are aligned with the forming direction of the support frame 12 in a plan view. 12 and the floats 1L, 1R, and 2 are arranged and configured. In other words, the floats 1L, 1R, and 2 are expanded in the direction of the support frame 12 from the support frame 12 in a plan view. It is positioned and fixed to the main body frame 3 so as to extend.

  Further, the stabilizers 4L, 4R, 6 are integrally formed on the lower edge of the support frame 12 so that the center line passing through the center in the width direction of the stabilizers 4L, 4R, 6 matches the forming direction of the support frame 12. The stabilizers 4L, 4R, and 6 are formed so as to protrude from the lower end portion of the support frame 12 to the left and right sides. In other words, the stabilizers 4L, 4R, 6 and the support frame 12 and the floats 1L, 1R, 2 just above the same are attached and fixed to the main body frame 3 side in a state of being directed in the same direction in plan view. .

  The center stabilizer 6 is set in the left-right position so that the center in the width direction is located on the center line S2 of the center float 2, and its width gradually increases toward the front side in the full length direction. It is molded in a symmetrical shape (reverse taper shape). In other words, the left and right side edges of the center stabilizer 6 have the same inclination angle (reverse taper angle) θ1 with respect to the center line S2 (straight direction of the hull) of the center float 2 passing through the center in the width direction thereof. Have. Further, the center stabilizer 6 is formed in a horizontal plane.

  In addition, a pair of upper and lower protective plates 13 and 13 that face each other with their both surfaces facing up and down are disposed near the front of the center float 2, and a resistance plate 14 extends from the front end of the center stabilizer 6. Yes.

  The resistance plate 14 is inclined upward from the front end side of the center stabilizer 6 to the front so as to follow the notched inclined surface of the support frame 12 in a side view. The left and right edges extending in the direction are formed in a shape in which the width gradually increases toward the front so as to be continuous from both the left and right edges of the center stabilizer 6 in plan view. Incidentally, the resistance plate 14 is fixed to the front end or the side surface of the support frame 12.

  The protection plate 13 is positioned further forward of the resistance plate 14 and is fixedly attached to the front end portion of the support frame 12 in a state of being inclined so as to incline upward in a side view. The upper and lower protection plates 13, 13 are parallel to each other, and the inclination angle (upward inclination angle) θ2 with respect to the horizontal direction is set to 40 to 50 °.

  The protection plate 13 protrudes from the support frame 12 to the left and right sides in a plan view, and is formed into a shape in which the left and right widths gradually increase toward the front so as to continue from the left and right edges of the center stabilizer 6. .

  The side stabilizers 4L and 4R have a widthwise center located on the center line S1 of the upper side floats 1L and 1R, and the width of the side stabilizers 4L and 4R gradually decreases toward the front in the full length direction (triangular shape in plan view). Tapered). In other words, the left and right side edges of the side stabilizers 4L and 4R have the same inclination angle (positive taper angle) θ3 with respect to the center line S1 of the side floats 1L and 1R passing through the center in the width direction thereof. The shape is symmetrical with respect to the center line S1.

  Further, the left and right side stabilizers 4L and 4R are integrally provided on the lower end side of the corresponding support frame 12 in a state where the left and right side stabilizers 4L and 4R are inclined downward toward each other in the rear view. An inclination angle (left-right inclination angle) θ4 that is inclined downward is set to 25 to 35 °.

  Also, the left and right side stabilizers 4L and 4R are inclined in a direction approaching each other toward the front in a plan view in a state of being symmetrical with respect to the center line S2 of the center float 2, and the support frame 12 and the side float 1R. , 1L is fixed to the main body frame 3 in a state in which the left and right sides are inclined. In other words, the center line S1 of the side floats 1L, 1R passing through the center in the width direction of the side stabilizers 4L, 4R is: It has an inclination angle (front-rear inclination angle) θ5 with respect to the straight direction of the hull.

  Further, a pair of upper and lower protective plates 16 are disposed in the vicinity of the front of the side floats 1L and 1R so that both surfaces thereof face upward and downward and face each other. The protection plate 16 is formed in the front-rear direction in a horizontal state in a side view, and is attached and fixed to the front end portion of the support frame 12. The protection plate 16 protrudes from the support frame 12 to the left and right sides, and is formed in a trapezoidal shape in which the left and right widths gradually increase toward the front in plan view.

  The protective plates 13 and 16 and the resistance plate 14 may be made of metal, but may be made of synthetic resin such as FRP or wood as long as a certain level of strength can be maintained.

  Next, based on FIG. 6, the structure of the boarding part 7 and the outboard motor 8 is demonstrated.

  FIG. 6 is a side view showing the main configuration of the boarding section and the outboard motor. The rear wall (rear end portion) of the boarding portion 7 constitutes an attachment portion 17 to which the outboard motor 8 is attached. On the other hand, the outboard motor 8 is provided with a fixture 18 for attaching the outboard motor 8 to the rear wall 17 of the riding section 7, and around the axis of the vertical rotation shaft 19 formed immediately behind the fixture 18. The operation handle 21 is configured to be horizontally rotatable and can be steered by an operation handle 21 protruding forward.

  By fixing the attachment 18 of the outboard motor 8 to the rear wall 17 of the riding section 7 in a detachable manner, the outboard motor 8 is mounted on the hull while the propeller 22 of the outboard motor 8 is immersed in water. It is installed detachably. At this time, the anti-theft cover 23 covering the bolt fixing portion of the attached portion 18 is attached to the rear wall 17, and the anti-theft cover 23 is locked so that it cannot be removed from the riding portion 7. The removal of the outboard motor 8 is also restricted, thereby preventing the expensive outboard motor 8 from being stolen.

  Further, the storage bag 9 is suspended from the lower surface of the riding part 7, and its upper end is fixed to the insertion hole 7 a of the riding part 7 by the ring-shaped attachment 24, and the interior of the storage bag 9 extends from the attachment 24. Seafood such as fish is stored in the exposed storage bag 24.

  Next, the configuration of the anti-theft cover 23 will be described in detail with reference to FIGS.

  7 to 9 are a plan sectional view, a side sectional view, and a rear view of the antitheft cover. The fixture 18 is provided at a fixture main body 24 bent in a U-shape when viewed from the side, a front-rear mounting screw 26 inserted into the front piece 24 a side of the fixture main body 24, and a front end portion of the mounting screw 26. And an operation handle 27 extending from the mounting screw 26 in the orthogonal direction, and a contact plate 28 provided at the rear end portion of the mounting screw 26 and having the front and back surfaces directed front and rear.

  The outboard motor 8 is provided with a pair of left and right mounting tools 18, and each mounting tool 18 is mounted on the rear wall 17 so that the mounting body 24 sandwiches the rear wall 17 from the front and rear from the upper end side. By tightening the mounting screw 26 by 27, the contact plate 28 contacts the front side of the rear wall 17 and is fixed to the rear wall 17 of the outboard motor 8, while the mounting screw 26 is released by tightening. Unfixing from the rear wall 17 of the outboard motor 8 is performed.

  The above-described anti-theft cover 23 is a box body formed in a rectangular parallelepiped shape, and is detachably bolted along the front surface of the rear wall 17. An opening 29 that exposes the inside of the antitheft cover 23 is formed in a range from the rear surface of the antitheft cover 23 to the front end portion of the upper surface.

  Through this opening 29, a part of each fixture 18 protrudes upward from the upper surface of the anti-theft cover 23, and the rear half of the mounting screw 26, the upper side of the operation handle 27, both sides, The front is covered with an anti-theft cover 23 and the rear is covered with the front surface of the fixture body 24. For this reason, when the anti-theft cover 23 is attached and fixed to the rear wall 17, the outboard motor 8 cannot be detached from the hull.

  The mounting and fixing means of the anti-theft cover 23 will be described in detail. Bolt insertion holes 23a are formed in the left and right symmetrical positions with the opening 29 on the rear surface of the anti-theft cover 23, while the rear wall The fixing holes 17a are also formed in the positions where the left and right bolt insertion holes 23a in FIG.

  With the positions of the left and right bolt insertion holes 23a, 23a aligned with the positions of the corresponding fixing holes 17a, 17a, the fixing bolts 31, 31 are connected to the left and right fixing holes 17a, 17a from the rear side of the rear wall 17. And the bolt insertion holes 23a and 23a are inserted, respectively, and the front ends of the left and right fixing bolts 31 and 31 are protruded inside the antitheft cover 23. The anti-theft cover 23 is detachably bolted to the rear wall 17 by screwing a fixing nut 32 to the tip of each fixing bolt 31 protruding into the anti-theft cover 23 and tightening.

  Incidentally, since the bolt head 31a and the fixing nut 32 of the fixing bolt 31 have a regular hexagonal cross-sectional shape, the fixing bolt 31 and the fixing nut 32 are tightened and released by ISO (registered trademark) or the like. It can be easily performed using a standardized wrench, spanner or the like. However, a lock nut 33 that is a lock member that locks the fixing bolt 31 and the fixing nut 32 in a state where the anti-theft cover 23 is fixed to the rear wall 17 is provided.

  10A and 10B are a side view and a front view showing the configuration of the lock nut. A lock nut 33 is mounted in a screw-engaged manner at the tip of a fixing bolt 31 protruding further forward from the fixing nut 32. The lock nut 33 is formed in a pentagonal shape (more specifically, a regular pentagon) when the fixing bolt 31 is viewed in the axial direction, and the diameter of the circle circumscribing the lock nut 33 is larger than the diameter of the circle circumscribing the fixing nut 32. The lock nut 33 is set to be short, and the thickness of the lock nut 33 is set to be much thinner than the thickness of the fixed nut 32 to form a plate shape.

  The lock nut 33 is tightened and released by a dedicated wrench punched and formed in the same shape as the outer shape of the lock nut 33, and is tightened and released by a standardized wrench or spanner. Can not be. Further, since the lock nut 33 is thin, it cannot be tightened and released using a tool such as a ply. Since the fixing nut 32 cannot be released unless the lock nut 33 is tightened, the lock nut 33 can lock the antitheft cover 23 in a fixed state.

  The lock nut 33 is locked / unlocked and the fixing bolt 31 and the fixing nut 32 are fixed / unlocked through the opening 29 described above.

  According to the float type ship configured as described above, the watercraft M is moved forward while the water surface M is positioned in the middle of the vertical width of each of the floats 1L and 1R (about half in the illustrated example). When the direction of drainage by the outboard motor 8 is tilted to the left and right direction turning side with respect to the straight direction of the hull during operation, the stern is swung to the opposite side to the turning side, and the left and right side stabilizers 4L and 4R The left and right inclination angle θ4 causes the hull to incline toward the turning side so that the turning side sinks and the opposite side of the turning surface rises. Is completed promptly.

  Further, the stabilizers 4L, 4R, 6 projecting to the left and right sides act to stabilize the hull when the wave is rough, etc. In addition, the front and rear inclination angles θ5 and the positive taper angle θ3 of the left and right side stabilizers 4L, 4R are provided. As a result, the water sorting performance during forward traveling is also improved, and the straight traveling performance is also improved.

  Next, a different point from the example mentioned above about another embodiment of the present invention is explained based on FIG.

  FIGS. 11A and 11B are a plan view and a rear view showing another embodiment of the present invention. The portions of the main body frame 3 that protrude from the boarding portion 7 to the left and right sides are respectively turned to the side folding frame portion 36 that is turned upward and folded with respect to the riding portion 7 side (main frame portion 34) of the main body frame 3. At the same time, the portion of the main body frame 3 that protrudes forward from the riding portion 7 becomes a front folding frame portion 37 that is rotated upward and folded with respect to the main frame portion 34.

  The folding frame portions 36 and 37 are attached to and supported by the main frame portion 34 via hinges 38 and are rotated upward to a position where the upper surface side comes into contact with the peripheral wall portion of the riding portion 7. , 37, the floats 1L, 1R, 2 are folded and stored on the riding section 7 side, and the front and rear lengths and the left and right widths become compact, making it easy to carry and store.

  That is, the hinge portion 38 constitutes a storage mechanism for storing the floats 1L, 1R, 2 and the folding frame portions 36, 36, 37 which are the support portions thereof.

  Each of the folding frame portions 36 and 37 has an unfolded posture (see FIG. 11 (A)) that is unfolded outward or laterally, and a retracted posture (see FIG. 11 (B)) that is folded to the riding portion 7 side. Each of which is fixed in position.

  In addition, a pair of left and right wheels 39 are installed at the front and rear positions of the lower surface of the main frame portion 34, respectively, by which the folding frame portions 36 and the floats 1L, 1R, 2 are folded into the riding portion 7 in a compact manner. The float type ship is easily transported on the ground in the folded state.

1L, 1R Side float (float)
2 Center float (float)
3 Body frame 4L, 4R Side stabilizer (stabilizer, stabilizer)
6 Center stabilizer (stabilizer, stabilizer)
7 Boarding part 8 Outboard motor 12 Support frame (support member)
12a Arrangement hole 13 Protection plate 16 Protection plate 17 Mounting part (rear wall)
23 Anti-theft cover

Claims (10)

  A pair of left and right side floats (1L, 1R) and a center float (2) disposed between the left and right side floats (1L, 1R) in front view and positioned in front of the side floats (1L, 1R); A float having a main body frame (3) for connecting the three floats (1L, 1R, 2), and mounting and fixing a flat stabilizer (6) extending in the front-rear direction to the lower surface of the hull with both left and right sides protruding. In the type ship, the stabilizer (6) is arranged at a position on the front side of the hull and lower than the center float (2), and the stabilizer (6) is formed in a reverse taper shape in which the left and right widths gradually increase toward the front. Molded float type ship.   Stabilization plates (4L, 4R) are provided at the left and right positions on the rear side of the hull and lower than the side floats (1L, 1R), and the left and right stabilization plates (4L, 4R) The float-type ship according to claim 1, wherein the float-type ship is formed into a tapered shape that gradually narrows toward the bottom.   The float type ship according to claim 2, wherein the left and right stabilizing plates (4L, 4R) are respectively inclined downward toward the inner side in the left-right direction when viewed from the rear.   4. The float type ship according to claim 2, wherein the left and right stabilizers (4 </ b> L, 4 </ b> R) are inclined inward in the left-right direction toward the front in a plan view. 5.   The float type ship according to any one of claims 1 to 4, wherein a protection plate (13, 16) having both surfaces facing up and down is arranged in front of the float (1L, 1R, 2).   The protective plate (13) located in front of the center float (2) is inclined forward and obliquely upward, and the protective plate (16) located in front of each side float (1L, 1R) is formed in the horizontal direction. The float type ship according to claim 5.   A boarding part (7) is installed at a rear position on the main body frame (3), and an attachment part (17) for attaching the outboard motor (8) is formed at the rear end of the boarding part (7). The anti-theft cover (23) for covering at least a part of the attachment portion of the outer unit (8) to the attachment portion (17) to prevent theft is provided on the attachment portion (17) side. The float type ship described in any one.   A fixing bolt (31) and a fixing nut (32) for fixing the anti-theft cover (23) to the mounting portion (17) are provided, and the fixing bolt (31) and the fixing nut (32) are tightened. The float type ship according to claim 7, wherein the lock nut (33) to be locked is provided on the side of the fixing bolt (31) engaged with the fixing nut (32).   The stabilizer (4L, 4R, 6) is fixedly attached to the lower end of the support member (12) extending downward from the lower surface of the main body frame (3), and the arrangement hole (12a) is drilled in the support member (12). The float type ship according to any one of claims 1 to 8, wherein the float (1L, 1R, 2) is disposed in a space in the arrangement hole (12a). It placed riding section in a position deviation after on the body frame (3) to (7), provided each float (1L, 1R, 2) the folded riding section with upward rotation (7) side storage mechanism according Item 10. The float type ship according to any one of Items 1 to 9.

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