JP2005212684A - Towing type small boat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a towing type small boat that can select the carrying time of the hull and the sailing time and has a travelling wheel usable for rolling moderation of the hull when it slowly sails on the sea and is moored on the sea. <P>SOLUTION: The travelling wheel has a metal wheel and an airless tire mounted to the wheel, and has a specific gravity of submerging. A mounting section 18 of a rope extending from the hull 2 so that the travelling wheel is suspended horizontally undersea is disposed in the center shaft section of the wheel or around it, and the wheel 14 has an opening for passing seawater to moderate rolling of the hull. By a rocking arm mounted to the outside of the right and left walls of the hull, it is liftably supported at a carrying time position for grounding the travelling wheel 11 on the road surface and a sailing time position for storing the travelling wheel in the upper part of the hull. Thus, the travelling wheel is kept to be stored in the upper part of the hull during sailing, so that a problem wherein the travelling wheel does not fulfill the other specific effective role in the stored state of the travelling wheel in the upper part of the hull is solved. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tow-type small boat provided with wheels to facilitate transportation on land.

In order to transport a small ship on land, there is one provided with wheels that can be moved up and down outside the left and right walls of the hull. This wheel is supported by a swing arm attached to the hull so as to be able to move up and down at a transporting position where the wheel contacts the road surface and at a sailing position where the wheel is stored in the upper part of the hull. (For example, refer to Patent Document 1).
Japanese Patent Laid-Open No. 2002-225793

  Although the thing of this patent document 1 is convenient because it can choose between the time of conveyance of a hull and the time of sailing by rotation of a rocking arm, since a wheel is still stored in the upper part of a ship at the time of sailing. In the state that the wheel is stored in the upper part of the hull, the wheel does not play any other special role. Also, in the state of being stored in the upper part of the hull, the wheels sometimes get in the way. In view of such points, the present invention can be used not only to select the time of transportation and navigation of the hull, but also to reduce rolling of the hull when slowly sailing on the sea or when anchoring at sea. The present invention provides a tow-type small ship equipped with wheels.

  1st invention is supported by the wheel support apparatus so that it can move to the state at the time of conveyance which the wheel protruded below the hull, and the stowed state pulled up to the upper part of the above-mentioned hull on both right and left sides of the hull, The wheel comprises a wheel and an airless tire attached to the wheel, has a specific gravity that is submerged in water, is detachable from the wheel support device, and the wheel extends from the hull so that the wheel is suspended in the sea. A rope attachment portion is provided, and a state in which the wheel is attached to the wheel support device and a state in which the wheel is suspended in the sea by the rope can be selected.

  The second invention is supported by a wheel support device on both left and right sides of the hull so as to be movable between a transporting state in which the wheels protrude downward from the hull and a retracted state in which the wheels are pulled up to the upper portion of the hull. Is equipped with a wheel and an airless tire attached to the wheel, has a specific gravity that is submerged in water, and is detachable from the wheel support device. An attachment portion of a rope extending from the hull is provided so as to be suspended in the sea, and an opening is formed in the wheel to relax the rolling of the hull when seawater comes and goes when suspended in the sea. And

  In the first invention, since the wheel for carrying the towed small ship on land is used as a weight when the towed small ship is floated on the sea, the towed small ship is stabilized on the sea. be able to. Also, when the wheel is stored in the upper part of the hull, the wheel sometimes gets in the way, but if it can be used to suspend the wheel in the sea and ease the weight and shaking of the hull, the wheel will not get in the way. Effective use of wheels. Further, since the airless tire cushions the wheels to reduce the impact from the road surface to the hull, there is no hindrance to the transportation of the hull.

  In addition to the effects of the first invention, in the second invention, when the wheel is suspended in the sea, when the seawater comes and goes through the opening, the wheel slowly moves up and down due to the wave. Therefore, the action effect of the weight is increased, and the swinging of the hull can be mitigated, and the shaking of the hull can be mitigated when fishing. For this reason, by attaching the wheel according to the size of the small ship, etc., the wheel can be used to obtain the rolling relaxation effect of the hull at sea.

  The present invention, on the left and right sides of the hull, provided with wheels that are detachably attached to the wheel support device so as to be movable between a transported state protruding downward from the hull and a retracted state pulled up to the top of the hull, This wheel is constructed to have a specific gravity that is submerged in water and is suspended in the sea to form a weight of a hull, and an embodiment thereof will be described below.

  An embodiment of the present invention will be described with reference to the drawings. Each figure shows the embodiment of the reinforcing structure of the boat according to the present invention, FIG. 1 is a perspective view of the state of the tow type small boat according to the present invention during transportation, and FIG. 2 is a state in which the wheels are suspended in the sea. FIG. 3 is an explanatory view of the retracted state of the tow type small ship wheel according to the present invention, and FIG. 4 is a sectional view of the retracted state of the tow type small ship wheel according to the present invention. FIGS. 5A to 5D are explanatory diagrams showing a state in which the tow type small boat wheel according to the present invention is moved from the retracted state to the transported state, and FIG. 6 is a tow type small boat wheel according to the present invention. It is explanatory drawing of the rocking | fluctuation effect of the hull of the state suspended in the sea.

  Reference numeral 1 denotes a tow-type small boat according to the present invention. A hull 2 includes a bottom wall 3, left and right side walls 4, 5 and a rear wall 6 integrally formed of FRP (fiber reinforced plastics). This FRP (fiber reinforced plastics) has a structure in which an epoxy resin is impregnated between glass fibers. On the inside of the hull 2 made of FRP, it extends in the direction of the left and right side walls 4 and 5 of the hull 2 inside the hull 2 at positions slightly closer to the front and rear, respectively, Reinforcing walls 7A and 7B made of FRP (fiber reinforced plastics) joined to the left and right side walls 4 and 5 are provided. On the back side of the reinforcing walls 7A and 7B, a synthetic resin foam material that adheres to the reinforcing walls 7A and 7B is provided by an in-situ foaming method. The strength of the reinforcing walls 7A, 7B and the bottom wall 3 of the hull 2 is increased by assembling the synthetic resin foam material in contact with the bottom wall 3 of the hull 2. The reinforcing walls 7A and 7B integrally form a seat portion 40, and a cushion 40A is attached thereon. Reference numeral 40B denotes a sacrifice part formed integrally with the reinforcing wall 7A adjacent to the seat part 40.

  In the present invention, on both left and right sides of the hull 2, wheels 11 attached to the wheel support device 10 so as to be movable between a transporting state protruding downward from the hull 2 and a retracted state pulled up above the hull 2. I have. The wheel 11 includes a wheel 14 on which a central shaft portion 13 is rotatably supported by a shaft support portion 12 of the wheel support device 10 and an airless tire 16 attached to a rim portion 15 on the outer periphery of the wheel 14. The wheel 11 is suspended from the hull 2 by a rope 17 and has a weight that sinks in water, that is, a specific gravity as a whole in order to act as a weight for stabilizing the hull 2 at sea. Therefore, the wheel 14 can be made of a metal such as aluminum or other materials in consideration of appearance. The central shaft portion 13 or its peripheral portion includes an attachment portion 18 for attaching the other end side of the rope 17 attached to the hull 2 at one end side so that the wheel 11 is suspended in the sea in a horizontal state. The attachment portion 18 is formed by a hole through which the rope 17 extending from 2 is inserted.

  In the wheel 14, when the wheel 11 is suspended in the sea, the seawater comes and goes and the opening 20 that relaxes rolling of the hull 2 is evenly spaced between the central shaft portion 13 and the rim portion 15 in the circumferential direction. Is formed. In the form in which the wheel 14 is connected to the central shaft portion 13 and the rim portion 15 by the disk portion 19, openings 20 having the same diameter are equally spaced from the central shaft portion 13 to the disk portion 19 on the circumference of a certain radius. Form.

  As an embodiment of one wheel 11, the outer diameter of the airless tire 16 is 290 mm, the outer diameter of the rim portion 15 is 258 mm, the outer diameter of the central shaft portion 13 is 25 mm, the thickness of the spoke portion 21 is 6 mm, and the spoke portion An opening formed in a flat disk portion 19 formed between 21 is a circular hole having a diameter of 60 mm, a wheel 14 is made of aluminum, and an airless tire 16 is formed of a rubber tire. As a result, the objects and operational effects of the present invention are achieved. In addition, the hole of the attachment part 18 of the rope 17 is a form formed in the spoke part 21.

  The wheel support device 10 includes a fixing plate 23 fixed in the vertical direction to the hull 2 by fixing means 24 using bolts and nuts in an attachment portion 22 formed by recessing in the rear portions of the left and right sides of the hull 2, and the fixing plate. And a wheel support member 25 coupled to the shaft 23 by a shaft coupling portion 26 so as to be vertically rotatable. The fixing plate 23 forms a wall 23A fixed to the hull 2 by fixing means 24 and parallel walls 23B rising in parallel on both sides of the wall 23A, and the wheel support member 25 is interposed between the parallel walls 23B. Combined with loose fit.

  The shaft coupling portion 26 is formed with a horizontal shaft 27 fixed so as to extend over the left and right parallel walls 23B of the fixed plate 23 and a long hole 28 into which the shaft 27 can be moved up and down. Further, the fixed plate 23 includes locking portions 30 and 31 which are recessed at the upper end portion and the lower end portion of the parallel wall 23B, respectively. The intermediate portions of the wheel support member 25 are connected to the locking portions 30 and 31. A shaft-like locking projection 32 protruding in the horizontal direction is provided so as to be selectively locked. As the shaft coupling portion 26, a long hole 28 is formed in the left and right parallel walls 23 </ b> B of the fixed plate 23, and a horizontal shaft 27 that is vertically movable and rotatable in the long hole 28 is provided in the wheel support member 25. It may be configured.

  The other end portion of the wheel support member 25 is provided with a cylindrical or columnar shaft support portion 12 projecting in the horizontal direction, and a central shaft portion 13 of the wheel 11 is rotatably supported on the shaft support portion 12. Yes. In this case, a bearing or a bearing may be provided as appropriate for smooth rotation of the wheel 11. The wheel 11 is configured so that it can be easily attached to and detached from the shaft support portion 12, one side of the wheel 11 faces the wheel support member 25, and axial movement is restricted, and the other side of the wheel 11 supports the wheel 11. It is hold | maintained by the holding | maintenance apparatus 50 hold | maintained at the part 12 so that attachment or detachment is possible. In the configuration shown in the drawing, the holding device 50 is held in a retaining state by a nut 50 </ b> A that is detachably screwed to a threaded portion at the tip of the shaft support portion 12. Is a structure that can be easily detached from the shaft support portion 12.

  Note that the holding device 50 for holding the wheel 11 so as to be detachable from the shaft support portion 12 may employ other means, for example, a lock pin in a hole formed in the tip portion of the shaft support portion 12. May be configured to be detachably inserted.

  In such a configuration, in a state where the towed small boat 1 is sailed on the sea, the wheels 11 are in a retracted state in which the wheels 11 are pulled up to the upper portion of the hull 2 as indicated by a two-dot chain line in FIG. This retracted state is a state in which the locking protrusion 32 of the wheel support member 25 is fitted to the locking portion 30 at the upper end of the fixed plate 23 as shown in FIG. In this state, the shaft 27 is located closer to the upper end of the long hole 28.

  When pulling and pulling the tow type small ship 1 to the land, as shown in FIG. 5B, the wheel 11 is lifted, and the locking projection of the wheel support member 25 from the locking part 30 at the upper end of the fixed plate 23. In a state where the wheel 32 is detached, the wheel support member 25 is rotated together with the wheel 11 so that the wheel 11 is lowered about the shaft 27. Then, the wheel 11 is rotated until it protrudes downward from the hull 2, and the locking protrusion 32 of the wheel support member 25 is engaged with the locking portion 31 at the lower end of the fixing plate 23 as shown in FIG. 5D, the locking protrusion 32 of the wheel support member 25 is fitted into the locking portion 31 at the lower end of the fixed plate 23 as shown in FIG. In this state, the wheels 11 protrude downward from the hull, and the tow-type small boat 1 is in a state during transportation that can be towed on land.

  When towing the towed small ship 1 on land, the front lower portion of the hull 2 is supported by a hitch member (connecting mechanism) 54 having wheels 53 and the hitch member (connecting mechanism) 54 is connected to a towing vehicle. Towable. Further, the hitch member (connection mechanism) 54 may be pulled by pulling it manually.

  In this state, a bolt that penetrates the wheel support member 25 and the fixing plate 23 and a bolt that penetrates the wheel support member 25 and the fixing plate 23 can be easily turned by hand for stabilization when towing the tow type small boat 1 on land. A coupling device such as a fastening means composed of a wing nut may be added.

  In order to change the tow type small ship 1 from a state where it can be towed on land to a state in which the tow type small ship 1 sails on the sea, as shown in FIG. The wheel support member 25 is rotated together with the wheel 11 about the shaft 27 so that the wheel 11 is raised in a state where the lock protrusion 32 of the wheel support member 25 is detached from the lock portion 31 of the wheel 11. In a state where the wheel 11 is turned to the upper part of the hull and the locking projection 32 of the wheel support member 25 is made to correspond to the locking portion 30 at the upper end of the fixing plate 23 as shown in FIG. As shown in (A), the locking protrusion 32 of the wheel support member 25 is fitted into the locking portion 30 at the upper end of the fixing plate 23. In this state, the wheel 11 is stored in the upper part of the hull.

  In addition, in the above-mentioned storage state and transportation state, in order to maintain the fitting between the locking protrusion 32 of the wheel support member 25 and the locking portion 30 at the upper end portion and the locking portion 31 at the lower end portion of the fixing plate 23, It can also be set as the structure which added the tension | pulling spring between the wheel support member 25 and the stationary plate 23. FIG. In this case, in the operation from the retracted state to the transported state and from the transported state to the retracted state, the locking protrusion 32 is connected to the locking portion 30 at the upper end portion and the locking portion 31 at the lower end portion of the fixing plate 23. When it is removed or fitted, it is necessary to perform an operation for urging the wheel support member 25 against the tension spring force.

  Further, the wheel 11 can be easily detached from the shaft support portion 12 by removing the holding device 50 in the retracted state. The removed wheel 11 can be suspended in the sea with one end of the rope 17 attached to the left and right sides of the rear part of the hull 2 attached to the attachment part 18. In this suspended state, the attachment portions 18 are formed in an even arrangement so that the wheels 11 are suspended in the sea in a horizontal state. Since the seawater comes and goes through the opening 20 in the state suspended in the sea, the movement of the wheel 11 accompanying the movement of the seawater becomes slow, and the wheel 11 exerts the role of the weight of the hull 2 to roll the hull 2. To ease.

  Regarding the rolling of the hull 2, as shown in FIG. 6, when the wheel 11 is not suspended, it becomes like A, and when the wheel 11 is suspended, the swing angle may be small like B. .

  In the form in which the wheel 14 is not provided with the disk portion 19 and the central shaft portion 13 and the rim portion 15 are connected by the spoke portions 21 simply provided at equiangular intervals, the spoke portions 21 are formed at equal intervals. The opening 20 may be used. The shape of the opening 20 is not limited to a circle, and may be any state as long as it is arranged at equal intervals on the same circumference.

  The towing-type small boat 1 travels with an all-lock member 51 attached to the upper ends of the left and right side walls 4 and 5 of the hull 2 and with an outboard motor 52 attached to the rear wall 6 of the hull 2. You can choose the case. Even when the wheels 11 are stored, the mounting portions 22 of the wheel support device 10 are provided near the intersections of the left and right side walls 4, 5 and the rear wall 6 so as to be arranged on both sides of the rear part of the hull 2. It is hard to get in the way of people who do fishing, fishing, rowing all.

  As described above, according to the present invention, the wheel 11 for transporting the towed small ship 1 on the ground is used as a weight when the towed small ship 1 is floated on the sea. The ship 1 can be stabilized. In the state in which the wheel 11 is stored in the upper part of the hull 2, the wheel 11 sometimes gets in the way, but if the wheel 11 can be used to suspend the wheel 11 in the sea and reduce the weight and vibration of the hull 2, 11 becomes effective use of the wheel 11 without getting in the way. In addition, since the airless tire 16 cushions the wheels 11 to reduce the impact from the road surface to the hull 2, there is no hindrance to the transport of the towed small boat 1.

  In addition, when the wheel 11 is suspended in the sea, when the seawater comes and goes through the opening 20, it is slow that the wheel 11 moves up and down due to the wave, so that the action effect of the weight increases, and the hull 2 Swaying of the hull 2 when fishing, etc. can be mitigated. For this reason, by attaching the wheel 11 according to the size of the small ship, etc., the wheel 11 can be used to obtain the rolling relaxation effect of the hull 2 at sea.

  Within the scope of the technical idea of the present invention, the present invention is not limited to the above-described embodiments, and various types of tow-type small ship wheels and tow-type small ships can be provided.

It is a perspective view of the state at the time of transportation of the tow type small ship concerning the present invention. (Example 1) 1 is a perspective view of a towed small boat according to the present invention in a state where wheels are suspended in the sea. (Example 1) It is explanatory drawing of the retracted state of the tow type small ship wheel which concerns on this invention. (Example 1) It is explanatory drawing which shows the retracted state of the tow type small ship wheel which concerns on this invention in a cross section. (Example 1) (A)-(D) are explanatory drawings of the state moved to the state at the time of conveyance from the retracted state of the tow type small ship wheel which concerns on this invention. (Example 1) It is explanatory drawing of the rocking | fluctuation effect of the hull of the state which suspended the tow type small ship wheel which concerns on this invention in the sea. (Example 1)

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Tow type small ship 2 ... Hull 3 ... Bottom wall of hull 4 ... Left side wall of hull 5 ... Right side wall of hull 6 ... Rear of hull Wall 7A: Front side reinforcing wall 7B: Rear side reinforcing wall 10 ... Wheel support device 11 ... Wheel 12 ... Shaft support part 13 ... Center shaft part 14 ... Wheel 15 ... -Rim part 16 ... Airless tire 17 ... Rope 18 ... Rope attachment part 19 ... Disc part 20 ... Opening 21 ... Spoke part 22 ... Attachment part 23 ... Fixed plate 25 ... wheel support member 26 ... shaft coupling portion 27 ... shaft 28 ... long hole 29 ... coil spring 30, 31 ... locking portion 32 ... locking projection

Claims (2)

  The left and right sides of the hull are supported by a wheel support device so as to be able to move between a transporting state in which the wheels protrude downward from the hull and a retracted state in which the wheels are pulled up to the top of the hull. An airless tire attached to the vehicle, having a specific gravity that is submerged in water and detachable from the wheel support device, the wheel having a rope attachment portion extending from the hull so that the wheel is suspended in the sea A tow-type small ship configured to be selectable between a state in which the wheel is attached to the wheel support device and a state in which the wheel is suspended in the sea by the rope.   It is supported on both the left and right sides of the hull by a wheel support device so that the wheel can move between a transporting state in which the wheels protrude downward from the hull and a retracted state in which the wheels are pulled up to the upper part of the hull. It is equipped with an attached airless tire, has a specific gravity that immerses in water, and is detachable from the wheel support device, so that the wheel is suspended in the sea in a horizontal state at the central shaft portion of the wheel or its peripheral portion. A tow-type small boat characterized in that an attachment portion of a rope extending from the hull is provided on the wheel, and an opening is formed in the wheel to relax the rolling of the hull when seawater comes and goes when suspended in the sea. .

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