JPH0127825Y2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Industrial Application Field This invention relates to a sectional surfboard used for surfing or windsurfing.

(2) Conventional technology Conventional surfboards were integrally molded products made by polishing a reinforced plastic boat-shaped board, laminating and fixing glass cloth with a synthetic resin solution.

(3) Problems that the invention aims to solve However, this surfboard is long and bulky, and is usually transported by being fixed to a carrier bar attached to the roof of a passenger car.
During the season, the roads leading to the coast are congested with traffic, and it takes a lot of time to go back and forth.Therefore, there is a demand for something that can be disassembled, reduced in bulk, stored in a handbag, and carried on the train, for example. It had been.

(4) Means for solving the problems In order to solve the problems mentioned above, this invention has a hull body formed by butting together multiple plate blocks, and a structure that can be freely attached to and removed from the hull body. The hull body has floating bladder holding parts on both sides of the deck and is open at the bottom. A protrusion or groove is provided to allow the swim bladder to have a protrusion or a groove, and a bag portion with opposing openings is provided at both front and rear ends of the swim bladder, and both ends of the hull body are inserted into the bag portions, and the contraction elasticity of the swim bladder causes the hull body to tighten. It is an assembly type that is fixed in place.

(5) Function In the assembled surfboard of this invention, each board block is connected by the swim bladder without a stopper and has the necessary buoyancy.When the air in the swim bladder is deflated, it disassembles into multiple board blocks and becomes bulky. The height is so low that it can be stored in a carry case.

(6) Embodiments Hereinafter, embodiments of this invention will be described based on the attached drawings. As shown in FIGS. 1 to 3, the assembled surfboard of this invention includes a nose plate block 1, a middle front plate block 2, a middle and rear plate block 3, which are made of reinforced plastic and have approximately the same length.
A combination of a hull body 5 formed by separably abutting four blocks of the tail plate block 4, and a rubber boat-shaped floating bladder 6 that is detachably attached to and supports the hull body 5. The hull body 5 consists of:
On both sides of the deck 7 there is a C-shaped cross section swim bladder holding part 8 (fourth
(see figure details) are arranged in series, and the bottom surface is open, and each plate block 1, 2, 3,
4 is provided with a fitting protrusion or groove (details will be described later), and at both front and rear ends of the swim bladder 6 are planar triangular bag portions 10 with opposing openings 9.
are connected to each other, and both front and rear ends of the hull 5 are inserted into the bag portion 10, and the hull 5 is fixed by the contraction elastic force of the swim bladder 6.

The nose plate block 1 and the tail plate block 4
is approximately triangular in plan view, the swim bladder holding part 8 is omitted from the bag insertion part at the tip, and there are a pair of pot-shaped through holes 11 arranged horizontally in the center of the deck 7 (details in Figure 6). ) is provided. A joining groove 12 is provided on the outer peripheral edge of the rear end of the nose plate block 1, and a joining protrusion 1 is provided on the outer peripheral edge of the front end of the tail plate block 4.
3, and a rectangular recess 15 in which a horizontal plate having a T-shaped cross section fin 14 (see details in FIGS. 1 and 4) is fitted is provided in the central longitudinal direction.

The middle front plate block 3 and the middle rear plate block 4
is approximately trapezoidal in plan view with gentle curves on both sides, and has a pair of side-by-side bell-shaped through holes 11 in the center of the deck 7, which are joined to the outer peripheral edge of the front end of the middle front plate block 3. A protrusion 13 is provided on the outer periphery of the rear end, and a joining groove 12 is provided on the outer periphery of the rear end, and a protrusion 13 is provided on the outer periphery of the front end of the middle and rear plate block 4, and a groove 12 is provided on the outer periphery of the rear end. .

The swim bladder 6 has an opening 9 of the bag portion 10 facing upward, and is smaller than the hull body 5 when in a deflated state, and when a required amount of air is injected, it expands laterally and is closely inscribed in the swim bladder holding portion 8, and also extends longitudinally. The plate blocks forming the hull body 5 are strongly compressed. This swim bladder 6 is provided with an air port 18 with a stopper at a key point in the center of the bottom surface, and on the top surface, a plurality of pairs of air holes are provided at positions corresponding to the small holes of the bell-shaped through holes 11 of each plate block. T-shaped cross section protrusion 17 (seventh
(see details in the figure) are arranged in series, and a vertical through hole 19 for fin insertion is provided in the center of the rear part.

This prefabricated surfboard has bag portions 10 of a swim bladder 6 inserted into both front and rear ends of a hull 5, and through-holes 11.
The hull body 5 and the floating bladder 6 are connected by fitting the protruding piece 17 into the small hole of the bell-shaped through hole 11 and fitting the protruding piece 17 into the small hole to prevent it from coming off. In addition, Finn 1
4 is attached to the hull body 5 in advance and is brought into pressure contact with the recess 15 of the deck 7 by the inflated floating bladder 6.

The assembled surfboard of the present invention for windsurfing uses a board block equipped with sail pole holes. In addition, this surfboard, similar to conventional products for both surf-in and windsurf-in use, is formed into the required curved surface from the nose to the tail, and can be manufactured with various designs such as nose and tail shapes, overall lengths, and thicknesses. be able to.

(7) Effects As described above, according to the assembled surfboard of this invention, it has a swim bladder inside and has the necessary buoyancy, making it easy to ride, and the bottom of the board body is open, making it easy to insert the swim bladder. In addition, it is easy to assemble and disassemble as it does not use any fasteners such as bolts, and when disassembled it has a very low bulk.
You can put it in a handbag and carry it, for example, on the train, which has the effect of allowing you to arrive at your destination faster by train, avoiding traffic jams during the season.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional side view showing one embodiment of this invention, Figs. 2 and 3 are top and bottom views of the same, and Figs. 4 and 5 are taken along the line from Fig. 1. 1, and FIGS. 6 and 7 are a plan view and a longitudinal sectional view of the connecting portion. 5... Hull body, 6... Swimming bladder, 7... Deck, 8...
...Swim bladder holding part, 10...Bag part, 14...Fin.

Claims (1)

[Scope of utility model registration request] It consists of a hull formed by butting together a plurality of plate blocks, and a boat-shaped swim bladder that is removably attached to and supports the hull, and the hull has swim bladders on both sides of the deck. The abutting portions of each plate block are provided with fitting protrusions or grooves, and the front and rear ends of the swim bladder are provided with:
A prefabricated surfboard in which bag parts with opposite openings are arranged in series, both ends of the hull body are inserted into the bag parts, and the hull body is fixed by the contraction elasticity of the swim bladder.