JPS58211997A - Wind propulsion device - Google Patents

Abstract

PURPOSE:To make the wing foldable when not using, by coupling the spreader dismountably while constructing the mutual coupling section of bone members such that the angle between each bone member is variable. CONSTITUTION:When coupling each coupling section 6, 7, 8, it will produce predetermined cubic shape. When not using, a bolt 9 is withdrawn at any one coupling section 8 to decouple the spreader 4 and the coupling tool 82 while loosen the stopper member 73 and screwed section 76 at the coupling section 7. Then the coupling tools 71, 72 are moved along the keel 2 and folded resulting in a compact rod.

Description

[Detailed description of the invention] This invention relates to improvements in wind propulsion devices.

Recently, people have been riding on boards that glide on water and have wings.
A device has been proposed that propels the vehicle by receiving wind from its wings. This device is characterized by its compact structure, but since the wing is assembled three-dimensionally by the keel, spar, strut, and spreader, it becomes bulky and difficult to handle during transportation or storage. In addition, it has a thin frame structure to reduce weight, which has the disadvantage of being easily broken when handled.

This invention has been made to solve these conventional drawbacks, and has a compact structure that can be folded up when not in use, making it convenient to handle and eliminating the risk of damage during handling. be. That is, in this invention, the spreader is removably connected, and the mutually connecting portions of the bone members are configured so that the angle between each member can be changed, so that the wings can be folded when not in use by kneading. It is something.

Embodiments of the present invention will be described below with reference to the drawings. 1st
The figure shows the state of use of the device, with a person 1 riding on the board 11.
0 is gliding on the water with wing 1 catching the wind. Part 1 includes triangular campuses 21 and 22 extending out on both sides of the keel 2, a pair of spars 6 that are connected to one end of the keel 2 and hold one side of each campus 21 and 22, and a pair of spars 6 between the two spars. N6 so as to keep the angle constant.
- It consists of a spreader 4 connected between the spar 3 and the keel 2, and a strut 5 connected to both the spars 3 and the keel 2 so as to keep the angle between them constant.

If the keel 2, spar 6, spreader 4, and strut 5 constituting the bone members are each made of carbon or glass fiber reinforced plastic or aluminum pipes, the bone members can be made lightweight and have high rigidity.

The person 10 grips the keel 2 at two places and operates the keel 2 in a direction perpendicular to the axis, but does not restrict rotation around the axis. Therefore, when the canvas 22 receives the wind, the wing 1 rotates around the keel 2, and the tip side of the canvas 21 moves down, but as a result, the campus 21 receives the wind, and this force is applied around the axis of the keel 2 in the opposite direction. This will provide rotational force. Therefore, the rotational force due to the campus 22 and the rotational force due to the campus 21 are kept balanced, and the rotational force due to the campus 22 is maintained.
Thrust is obtained by the wind pressure applied to the campus 21, and lift is obtained by the wind pressure applied to the campus 21. This lifting force absorbs part of the weight of the wing 1, allowing the person 10 to lightly support the wing 1. In addition, if there is sufficient wind, the lift force will be greater than the weight of R1, and in this case, the person 10 will support the wing 1 in a way that it hangs from the wing 1.

The campuses 21 and 22 are kept at a constant angle by the spreader 4, and the spar 6 and the keel 2 are connected to the strut 5.
Since the blade 1 is kept at a constant angle, the blade 1 has a three-dimensional shape, but when not in use, it can be folded like a bat umbrella to form a compact rod-like structure as shown in FIG. Therefore, the connecting portion of each bone member has a structure that allows such folding.

As shown in FIGS. 3 and 4, the coupling part 6 includes a pair of connectors 61 and 62 that are fitted onto the end of the keel 2, and an end member 60 that is fitted into the end of the keel 2 and has a spherical part at the tip. The connectors 61 and 62 are formed with a hole 20 through which the fidget keel 2 passes and a hole 90 for the locking bolt 9, and the locking ring 29 of the connector 61 is fixedly attached to the keel 2. There is.

Also, a connecting tool O is attached to the end of the spar O, forming a spar O. Then, tighten the bolt 9 to the connecting tool 30°61.6
The end members 60 are connected to each other by passing through the holes 90 of the keel 2, and the end members 60 are fixed to the keel 2 by adhesive or other means. As a result, the coupling members 61 and 62 are prevented from moving in the axial direction by the end member 60 and the retaining ring 29, and can only rotate about the keel 2. Further, each of the spars 3 connected to the connectors 61 and 62 via the connector 60 can rotate around the bolt 9, so that the angle between the pair of spars 6 and the angle between the spar 3 and the keel 2 The angle formed by this can be changed arbitrarily.

As shown in FIGS. 5 and 6, the coupling portion 7 includes a holding member 74 that is fitted onto the intermediate portion of the keel 2 and fixed with an adhesive or the like, a connecting member 71, 72, and a stopper member 73. ing. The holding member 74 has a flange portion 75 formed at one end of the cylindrical portion and a threaded portion 76 formed at the other end. The connecting portions 71, 72 are connected to the connector 61.
62, and the hole 7 through which the holding member 74 passes
0 and holes 90 for fixing bolts 9 are formed respectively.

Then, by fitting the connecting tools 71 and 72 onto the holding member 74 and screwing the stopper member 7 to the threaded portion 76, the connecting tools 71 and 72 can only be rotated around the keel 2,
Connectors 71, 72 each have a connector 50 at the end of the strut 5 rotatably connected therearound by a bolt 9.

As shown in FIG. 7.8, the coupling part 8 includes a coupling tool 81, a coupling tool 82, and a stopper member 83, which are fitted onto the middle part of the spar 3 and fixed with an adhesive or the like. A cylindrical portion 84 is formed in the tool 81, and a threaded portion 85 is formed at the end thereof. Then, the connecting tool 82 is fitted onto the cylindrical portion 84 and the stopper 83 is screwed onto the threaded portion 85.
It is possible to only rotate around the spar. The connector 50 at the end of the strut 5 is connected to the connector 81, and the connector 40 at the end of the spreader 4 is rotatably connected to the connector 82 by bolts 9.

In the above configuration, when the respective coupling portions 6, 7, and 8 are coupled, a constant three-dimensional shape is maintained as shown in FIG. In addition, when not in use, either one of the connecting parts 8 is connected to the bolt 9.
is pulled out to disconnect the spreader 4 and the connecting tool 82, and at the same time, the screwing between the stopper member 73 and the threaded portion 76 at the connecting portion 7 is removed. By moving the connectors 71 and 72 along the keel 2 and folding them as shown in FIG. 2, a rod-like, continuous structure can be obtained. Further, when in use, the state shown in FIG. 1 can be easily restored by performing the reverse operation to that described above.

The above-mentioned wing is designed so that a person can hold it in his hand and obtain thrust by catching the wind, and it can be used not only as a device for gliding on water as shown in the above embodiment, but also for skiing, skating, and roller skating. It can also be used as a device for gliding on land by wearing it or using a board for gliding on snow or ice.

As explained above, the present invention is a wind propulsion device with a simple structure that can be folded into a compact structure when not in use, and is convenient for transportation and storage.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a device showing an embodiment of the present invention in use, Fig. 2 is a plan view of the wing in its folded state, Fig. 3 is an exploded perspective view of the keel tip, and Fig. 4 is its assembled state. A perspective view of
Figure 5 is an exploded perspective view of the keel strut attachment part, Figure 6
The figure is a sectional view of the assembled state, FIG. 7 is an exploded perspective view I of the connecting portion between the spar and the spreader, and FIG. 8 is a plan view of the assembled state. 1... wing, 2... keel, 6... spar, 4...
・Spreader, 5... Strut, 6, 7.8...
Joining part. Patent Applicant: Yamaha Motor Co., Ltd. Agent, Patent Attorney: Etsushi Kotani, 2<.

Claims (1)

[Claims] 1. A keel, a triangular canvas projecting on both sides of the keel, and a triangular canvas that is connected to one end of the keel to hold one side of each campus, keeping the angle between both threads constant. The wing consists of a spreader connected between both spars to maintain the same angle, and a strut connected to the spar and keel to maintain a constant angle between the spars and the keel.The spray soda and spar are detachable. possible to combine
The strut 7 is attached to the keel so that its position can be moved, and the strut and spar joint and the snow 5
11- A wind propulsion device characterized in that the connecting portion between the keel and the keel is configured such that the angle between the two can be changed. .