JPH0655993U - Plate floating body - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a water ski that can be easily operated and slid by human power. [Structure] A pair of slide plates are arranged in parallel in the plate width direction and are connected by a slidable connection mechanism capable of relatively shifting in the length direction to restrain the distance between the two slide plates, and at least one slide plate On the lower surface, the opening and closing rowing members whose projected areas on the plane perpendicular to the transition direction are different on the outgoing path and the returning path should be mounted, and the foot straps should be mounted on the upper surface of each slide plate.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water ski that glides on the surface of water by human power.

[0002]

[Prior art]

 Conventional water skis cannot be used without a motorboat because they are towed by a motorboat.

[0003]

[Problems to be solved by the device]

 It is an object of the present invention to provide a water ski that can be easily operated and slid by human power.

[0004]

[Means for Solving the Problems]

 The present invention is configured as follows. (1) A pair of slide plates are arranged in parallel in the plate width direction, and they are connected by a slidable connecting mechanism that can relatively move in the length direction to restrain the distance between the two slide plates. A plate-like floating body is provided on the lower surface with opening and closing rowing members whose projected areas on the plane perpendicular to the transition direction differ between the forward and return paths, and the foot straps are mounted on the upper surface of each slide plate.

(2) Fixing two or more ropes to the side ends of the same slide plate and slidably connecting the rope between the fixed parts to the side ends of other slide plates. The plate-like floating body according to item (1), having a plurality of slidable connecting mechanisms at different positions in the front-rear direction of the slide plate.

(3) The plate-like floating body according to the item (1), which has a connecting mechanism that connects a pair of slide plates in a sliding manner by the frame board substantially at the center of the frame board.

[0007]

In the present invention, as shown in FIGS. 1 to 6, a pair of slide plates 1 and 2 arranged side by side in the plate width direction are connected by a slidable connection mechanism that can relatively move in the length direction. Constrain the space between the two and either or both of them so that they can be easily slid back and forth by human power. Since the opening and closing row members 3 having different projected areas on the plane perpendicular to the transition direction on the forward path and the return path are attached to the lower surface of at least one of the slide plates, the water flow resistance differs depending on the sliding direction of the slide plate. A person uses this to reciprocate the slide plate to move in one direction. That is, the open / close row members are connected by a butterfly plate as shown in FIGS. 2, 5 and 6. The open / close row members open due to the water flow resistance to further increase the water flow resistance. Close by water flow resistance to reduce water flow resistance. As shown in FIGS. 2, 5 and 6, this open / close row member has a structure in which the angle can be freely changed within approximately 90 degrees between the lengthwise direction and the vertical direction, and although not shown, a bat umbrella or frog is also shown. Like limbs, it can be composed of aggregate and membrane material. A footrest belt 4 is attached to the upper surface of each slide plate so that the user can put his / her foot on this to paddle or slide the slide plate back and forth easily. A large propulsive force can be easily obtained by relatively shifting the pair of slide plates while keeping them parallel to each other, and when rowing with only one slide plate, choose a posture in which both slide plates are slightly closed forward rather than parallel and go straight. Since it has the effect of being able to do so, it is advisable to configure the parallelism of both slide plates so that they can be adjusted as necessary.

[0008]

Embodiment 1 As shown in FIGS. 1 and 2, two or more places of a rope 5 are fixed to side ends of the same slide plate 2 which is a floating body, and the rope 5 between the fixed portions is fixed to another slide plate. Slidably connected to the side end of 1. This slidable connection mechanism has a plurality of slide plates at different positions in the front-rear direction and maintains the mutual postures of the slide plates. The connecting mechanism 6 is an example in which the rope 5 is slidably passed through an annular member fixed to the side portion of the slide plate. In this example, the point of the connecting mechanism 6 of the slide plate 1 draws an elliptical orbit with the fixed points on both sides of the rope of the slide plate 2 as the center of the ellipse, so the change in the distance between both slide plates is smaller than when drawing a circular orbit. And a great driving force can be obtained. By having a plurality of slidable connecting mechanisms at different positions in the front-rear direction of the slide plates, both slide plates can be maintained substantially parallel. The parallelism of both slide plates can be easily adjusted by changing one length of the rope 5, changing the rope end stop position, or changing the position of the connecting mechanism.

[0009]

[Embodiment 2] As shown in FIGS. 1 and 2, two or more places of the rope 5 are fixed to the side end portions of the same slide plate 2 which is a floating body, and are connected to the side portions of the slide plate so that the gap between them is large. Fix the bisecting point of the rope to the member that constrains and slides. A plurality of slidable coupling mechanisms for slidably coupling to the side ends of the other slide plates 1 are provided at different positions in the front-back direction of the slide plate. In this example, the ropes are stretched in a triangular chevron shape and the slide plates can move in parallel with each other while maintaining the maximum distance, and a large propulsive force can be obtained. By providing a plurality of slidable coupling mechanisms at different positions in the front-rear direction of the slide plates, both slide plates can be maintained substantially parallel to each other. Further, the parallelism of both slide plates can be easily adjusted by changing the length of one of the ropes 5, changing the rope end stop position, or changing the position of the connecting mechanism.

[0010]

[Embodiment 3] As shown in FIGS. 2 to 3, two or more places of a rope are fixed to the side end portions of the same slide plate that is a floating body, and the rope between the fixed portions is attached to the side end portions of other slide plates. The plate-like floating body having a plurality of connecting mechanisms for slidingly connecting to each other at different positions in the front-back direction of the slide plate. As can be seen from the comparison between FIG. 1 and FIG. 3, the point different from the case of Example 1 or 2 is that the fixation of both sides of the rope is not biased to one slide plate but to the other slide plate. The effect is the same as in the case of Example 1 or 2. It should be noted that the composite type of FIG. 1 and FIG. 3 is included in the present invention.

[0011]

Example 4 According to the example shown in FIGS. 1 to 3, one slide plate is smaller than the other, and the row member is attached to the lower surface of the small slide plate. It is a floating body. In this case, the opening / closing row member is always mounted under the small slide plate, and the opening / closing row member can be omitted on the larger slide plate. This small slide plate is moved in the length direction to obtain a large propulsion force with a small rowing force.

[0012]

[Embodiment 5] As shown in FIGS. 4 to 5, the plate-like member having a connecting mechanism for slidably connecting a pair of slide plates 1 and 2 to a substantially central portion of a frame board 7 which is a floating body. Floating body. The slide plates 1 and 2 are connected by a frame board 7 and are restrained from moving. In this case, in order to restore the slide plate to the reference position and reduce water leakage, the gap between the slide plates 1 and 2 and the frame board 7 is closed before or after the slide plate or both as shown in the figure. In addition, it is preferable that both are connected by a rubber band 12 so that the slide plate has a restoring force to the reference position. Further, in order to stabilize the body and make it easier to apply force, it is desirable to attach a grip bar 9 and to construct an inclined footboard portion 10.

[0013]

[Embodiment 6] As shown in FIG. 6, a seat board 11 on which a person can sit down is mounted on a frame board 7 which is a floating body in a substantially central portion thereof so as not to interfere with the sliding of a pair of slide plates 1 and 2. Plate-like floating body. Also in this case, in order to restore the slide plate to the reference position and reduce water leakage, the gap between the slide plates 1 and 2 and the frame board 7 should be closed before and / or after the slide plate as shown in the figure. It is better to connect both with a rubber band so that the slide plate has a restoring force to the reference position. In addition, it is desirable to attach the grip bar 9 to the seat board and to construct the inclined step board portion 10 in order to stabilize the body and facilitate the force.

[0014]

Seventh Embodiment As shown in FIGS. 1 to 6, the plate-like floating body according to the first to sixth embodiments, in which the grip rope 8 is attached to the slide plates 1 and 2 or the frame board 7. You can stabilize your body by gripping this gripping rope with your hand.

[0015]

[Embodiment 8] The plate-like floating body according to any one of Embodiments 1 to 7, wherein the opening and closing row member is composed of an aggregate and a film material like a bat umbrella or a frog limb.

[0016]

[Effect of device]

 By configuring the present invention as described above, it is possible to provide a water ski that can be easily operated and slid by human power.

[Brief description of drawings]

FIG. 1 is a plan view of a plate-like floating body of the present invention.

FIG. 2 is a vertical cross-sectional view of the plate-like floating body of FIG. 1 or 3 including the open / close row member of the present invention.

FIG. 3 is a plan view of the plate-like floating body of the present invention.

FIG. 4 is a plan view of the plate-like floating body of the present invention.

5 is a vertical cross-sectional view of the plate-like floating body of FIG. 4 including the open / close row member.

FIG. 6 is a vertical cross-sectional view including an open / close row member of a plate-like floating body having a seat board of the present invention.

[Explanation of symbols]

 1 slide plate 2 slide plate 3 open / close rowing member 4 foot belt 5 rope 6 slidable connection mechanism 7 frame board 8 gripping rope 9 grip bar 10 inclined footboard 11 seat board 12 rubber band

Claims (3)

[Scope of utility model registration request] 1. A pair of slide plates are arranged in parallel in the plate width direction and are connected by a slidable connecting mechanism capable of relatively shifting in the length direction to restrain the gap between the two slide plates and at least one slide. On the lower surface of the plate, the opening and closing rowing member whose projected area on the plane perpendicular to the transition direction is different on the outward path and the return path,
A plate-like floating body with a foot belt attached to the top of each slide plate. 2. A rope is fixed at two or more places to the side end of the same slide plate, and the rope between the fixed parts is slidably connected to the side end of another slide plate, and this slide is free. The plate-like floating body according to claim 1, wherein a plurality of connecting mechanisms are provided at different positions in the front-rear direction of the slide plate. 3. The plate-like floating body according to claim 1, further comprising a connecting mechanism that slidably connects a pair of slide plates by the frame board at a substantially central portion of the frame board.