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The present invention relates generally to a swimming equipment improvement, simplifying the structure and saving cost while conforming with human engineering of kicking swim fins, easily assembled and portable, and unlikely to be broken by the diver, and more particularly to the swim fin shoe body, holder, assembling slot and straight swim fin board of the swimming equipment improvement.
The known long-board swim fin is usually assembled of a swim fin shoe body (or shoe cover) and a bending swim fin board (or long board). The traditional bending swim fin boards comprise plastic board, glass fiber board and carbon fiber board. As shown in
However, when the known bending swim fin board 2a is equipped with the bending section 23a, the overall length is increased, and the bending section 23a has a tilt angle, it is relatively difficult to produce the bending swim fin board 2a. Furthermore, the known combination of swim fin shoe body 1 and bending swim fin board 2a is influenced by the tilt angle between them, the assembly is difficult. Therefore in general condition, when the swim fin shoe body 1 and bending swim fin board 2a are assembled, they are not to be disassembled, so that the overall length of the swim fin shoe body 1 and bending swim fin board 2a is very large, leading to low portability. In addition, when the swim fin shoe body 1 and bending swim fin board 2a are assembled, the bending section 23a of the bending swim fin board 2a is usually under the diver's sole (sole 102). This type of bending swim fin board 2a made of glass fiber or carbon fiber material is very brittle, very likely to be broken by the diver himself.
In view of this, the inventor accumulated related studies and practical experience over years, and created a swimming equipment improvement, so as to remedy the deficiencies in said known techniques.
The primary objective of the present invention is to provide a swimming equipment improvement, comprising a swim fin shoe body with a tip end and a heel end; the tip of the swim fin shoe body tilts and extends towards the front and underside of the swim fin shoe body to form a holder, and there is an assembling slot in the front end of the holder; and a straight swim fin board, provided with a paddling section on both ends respectively, and a detachable assembling section assembled in the assembling slot. The assembling section and paddling section form a straight pattern, so that the straight swim fin board tilts towards the front and underside of the swim fin shoe body along with the holder. The tilt angle between the straight swim fin board and swim fin shoe body conforms with human engineering of kicking swim fin, and the structure of the straight swim fin board is simplified, the cost is reduced, and it is easy to assemble the swim fin shoe body and straight swim fin board, multiple straight swim fin boards can be carried and assembled on site. In addition, the straight swim fin board is assembled in the front of the diver's sole, not trampled under the sole, so it is unlikely to be broken, remedying the deficiencies in the known bending swim fin board, such as difficult production and assembly, low portability, and the bending section of the known bending swim fin board is under the sole, very easy to be broken.
According to said main structural features, the assembling slot opens towards the front of the holder, the assembling slot is provided with a wall towards the underside of the holder; or the assembling slot opens towards the front and underside of the holder.
According to said main structural features, the holder and straight swim fin board are separated from the sole of the swim fin shoe body at 5 to 30°.
In order to disclose the present invention clearly and completely, the preferred implementation is illustrated, so as to expound the implementation mode.
In the preferred embodiment adopted, the tip 103 of the swim fin shoe body 1 tilts and extends towards the front and underside of the swim fin shoe body 1 to form the holder 11, and the front end of the holder 11 is provided with the assembling slot 12, so that the included angle from the holder 11 and assembling slot 12 to the sole 102 of the swim fin shoe body 1 is 5 to 30°, and the slot opening 121 of the assembling slot 12 opens towards the front of the holder 11. Two ends of the straight swim fin board 2 are provided with a paddling section 21 and a detachable assembling section 22 assembled in the assembling slot 12 respectively. The assembling section 22 and paddling section 21 form a straight pattern jointly.
The assembling section 22 of the straight swim fin board 2 can be inserted in the assembling slot 12 through the slot opening 121 at the front end of the holder 11, and the assembling section 22 of the straight swim fin board 2 is fixed to the assembling slot 12 of swim fin shoe body 1 with screws, tenons or similar structures, so that the straight swim fin board 2 tilts towards the front and underside of the swim fin shoe body 1 along with the holder 11, the included angle between the straight swim fin board 2 and the sole 102 of the swim fin shoe body 1 is 5 to 30°. Therefore, the tilt angle between the straight swim fin board 2 and swim fin shoe body 1 conforms with human engineering of kicking swim fin, and the structure of the straight swim fin board 2 is simplified, saving the production cost, and it is easy to assemble the swim fin shoe body 1 and straight swim fin board 2, favorable for carrying multiple straight swim fin boards 2 to the diving site. In addition, the straight swim fin board 2 is assembled in the front of the diver's sole, not trampled under the sole, it is unlikely to be broken. When the straight swim fin board 2 is to be changed by another material, the assembling section 22 of the straight swim fin board 2 can be drawn out of the assembling slot 12 easily, so as to disassemble the straight swim fin board 2 rapidly.
In comparison to previous techniques, the present invention has the following advantages.
First, the holder 11 and assembling slot 12 are located in the front end of tip 103 of the swim fin shoe body 1 at an angle, so that the straight swim fin board 2 is free of the bending section of the known bending swim fin board, the overall length of the straight swim fin board 2 can be shorter than the known bending swim fin board, enhancing portability.
Next, as the straight swim fin board 2 is a straight form composed of the assembling section 22 and paddling section 21, the overall structure is flat and simple, the structural complexity is reduced a lot, and the production cost is reduced.
Next, it is easy to assemble the straight swim fin board 2 with the assembling slot 12 of holder 11, the straight swim fin board 2 can be assembled or disassembled easily, favorable for trips.
Next, as the straight swim fin board 2 and swim fin shoe body 1 can be assembled easily, multiple straight swim fin boards 2 of different materials (e.g. plastic, glass fiber and carbon fiber boards) and rigidities can be carried simultaneously, so as to choose the straight swim fin board 2 of any material and rigidity according to the flow intensity on the diving site (e.g. lakeside, seaside), and the assembly can be done rapidly on the diving site.
Finally, as the assembling section 22 of the straight swim fin board 2 is located in the front end of tip 103 of the swim fin shoe body 1, whereas the bending section of the known bending swim fin board is located under the diver's sole, if the straight swim fin board 2 made of glass fiber or carbon fiber material is used, the straight swim fin board 2 and assembling section 22 will not be broken by trampling.
The above is only the preferred embodiment of the present invention, it may not limit the applicable range of the present invention, any changes and modifications which can be done apparently by the persons familiar with this industry shall be regarded as substantial content not departing from the present invention.
Number | Name | Date | Kind |
---|---|---|---|
3178738 | La Trell | Apr 1965 | A |
3302222 | Ferraro | Feb 1967 | A |
3521312 | Ganev | Jul 1970 | A |
3922741 | Semeia | Dec 1975 | A |