JP2008230440A - Side type diving fin - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance walking ability on a ground and a sea bottom and propulsion force at swimming of a diving fin. <P>SOLUTION: A fin portion of the conventional type diving fin is moved from a position of a distal end portion of shoes or the like until now to an outer side of a body between knee and ankle, and the optimum strength and the shape are adopted again. Thereby, the side type diving fin functioned at the performance equal to or more of the conventional diving fin without totally causing trouble on walking on the ground and the sea bottom is devised. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention is generally used to assist the movement by swimming when swimming in the sea by a method such as scuba diving or skin diving, or engaged in underwater work such as fishing, underwater civil engineering work, professional underwater photographer, etc. Related to the diving fins used

Conventionally, diving fins have a shape in which the fin body and the attachment part to the shoe or sandal foot are integrated, and most of the fins are formed in the tip direction from the part such as shoes. It was.
Such conventional shapes are very difficult to walk on the sea floor or on land, and until now, the solution has been to fold mainly at the center of the fins or near the base and point the tip up. Although it has been devised, it has not been spread in reality, and it still remains a difficult problem to solve.

  When engaging in underwater work such as underwater civil engineering and underwater photography at a port, conventional diving fins may interfere with work such as transporting heavy objects underwater or may not be worn. Although wearing fins, in precision work such as underwater photography, it was an unexpected situation such as obstructing work or inadvertently picking up sand or the like.

  In underwater harbor construction, it is often necessary to swim when moving underwater, and when an operator wears only shoes without fins and dives due to restrictions due to work contents, the movement speed due to swimming There were many problems from the viewpoint of ensuring safety as well as work efficiency such as being slow and exhausting physical strength.

  When diving fins are worn on land or on a ship, walking and moving are very difficult, not only the work efficiency is significantly reduced, but also the risk of an accident due to a fall etc. is particularly high on a rocky place or a swaying ship. .

In many cases, it is necessary to operate a foot fin, which has a large load for propulsion, with an ankle with relatively weak muscle strength at the tip of the foot, and sufficient thrust cannot be secured for users with weak physical strength such as women In some cases, problems such as

When diving workers wearing diving fins return to the mother ship, etc., they often use a swimming ladder, but they may climb the ladder while wearing conventional diving fins. Since it was difficult, it was necessary to remove the fins underwater, which often caused various troubles.

The shape of the diving fin extends from the knees to the vicinity of the ankles and protrudes to the outside of both legs of the body, ensuring work and actions by walking on land and on the seabed, and underwater as necessary. Swimming ability at will be greatly improved.

By using the present invention, both walking on the ground and the seabed and swimming in the water are sufficiently possible, and safety and work efficiency in the land walking and diving work are greatly improved.

  Underwater photography by a photographer can greatly avoid cases where the sand is rolled up by fin movement due to inadvertent behavior that is unavoidable, or the posture is disturbed by the reaction to miss a photo opportunity.

  If it is necessary to move by walking in rocky areas such as shallows, both shoes and diving fins have been required to protect the foot, but if you use the side-type diving fins, Is not necessary, and the work of carrying the diving fins is also omitted, and the transportation of the equipment is made more efficient.

By subtracting the diving fins that were conventionally worn on the tip of the foot from the tip of the foot to the vicinity of the knee and using the method to bend and stretch the knee, the effect on the muscle strength is greatly reduced. It is expected to significantly reduce fatigue and improve safety when swimming for a long time or long distance.

The side-type diving fins are fixed and worn on both left and right feet just before diving, and both knee joints are bent and stretched alternately when swimming in the water, resulting in lighter muscle strength than conventional fins. Can be obtained at

By making the cross section of the fin a wedge shape, when pushing out water etc. backward, the angle of the plane on the side where the fin comes in contact with water etc. becomes larger compared to the flat plate shape, As a result, a greater driving force can be obtained.

FIG. 1 shows an embodiment in which the fin of the present invention is attached to the left foot, and assumes a function in which drifting objects, seaweeds and the like are not easily entangled during swimming by assuming that the shape of the fin is a triangle whose upper part is gradually narrowed.

FIG. 2 shows an embodiment in which emphasis is placed on enhancing the performance of the fin by making the shape of the fin close to a quadrilateral.

In addition to sports diving, diving work in fisheries and underwater work in port construction are highly likely to be used as optimal equipment.

Side-type diving fin wearing situation and external view example-1 Same as above Example-2 External view of side diving fins seen from the side Cross-sectional view from above of side-type diving fins

Claims (5)

A wedge-shaped side-type diving fin with a cross-section that sharpens toward the tip of the foot, with a shape that extends outside the legs of the body from near the knees to the ankles of divers. The side-type diving according to claim 1, wherein the base of the fin on the body side is fixed to a shoe or sandal footwear, and the upper end of the fin on the body side is fixed to a corresponding leg using a belt or a fixture. For fins The fin of claim 1 is connected to the outer edge of the footwear of the shoe or the sandal base to prevent the fin far from the body from swinging back and forth due to water resistance during propulsion. Welding, combining or combining the body side edges of the fin to the top near the knee and from the top to the top of the fin through the outer edge farthest from the body to the bottom of the fin. The side type diving fin according to claim 1, wherein the side type diving fin is reinforced by a strong material integrated by a method such as bolt fixing. In order to ensure the vertical mobility of the ankle, the horizontal part in contact with the shoe part and the connection part of the upward reinforcement connected to the upper part of the reinforcing material can be moved at an angle about the vertical movable range of the ankle. The side-type diving fin according to claim 1, wherein the side-type diving fin has a structure that ensures the property. Rectification protrusions to prevent the propulsion force from diminishing due to the outward flow of water captured by the fin, from the top near the knee of the fin to the outer edge to the lower end and the central part of the entire fin to the center of the lower end. The side-type diving fin according to claim 1 provided with

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