JPH035198Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a sail device, and particularly to a sail device suitable for small ships.

(Prior Art) In recent years, various ships using sails have been proposed from the viewpoint of energy conservation.

By the way, sails can be broadly divided into soft sails and hard sails, but in either case, the sails must be retracted during strong winds. For soft sails, this method is used to wrap the sail around the inside or outside of the mast, while for hard sails, it is divided into a number of small sails, and each of the small sails is How to slide along the frame (JP-A-55-25644, JP-A-Showa
56-116593, etc.), or similarly, there is a method of dividing a hard sail into small sails and rotating the small sails like a window blind (Japanese Patent Application Laid-Open No. 57-47296, etc.), but none of them work. The structure becomes quite complex.

In addition, in order to improve the aerodynamic characteristics of the sail, for example, in the case of soft sails, hard sails are combined at both ends of the sail, and the yard is curved forward (see
57-58594, Japanese Unexamined Patent Publication No. 56-63595), on the other hand, hard sails are constructed by curving the shape of the hard sail itself into a predetermined curved surface, but in any case, these This costs a considerable amount of money.

Although the convenience of using a sail and an engine in common is recognized even in small vessels such as fishing boats, the method or method already proposed above can be easily applied to sails from the viewpoint of structure and cost. It's not a thing. For this reason, the inventors have conducted intensive research to develop sails that can be sufficiently applied to small ships. As a result, with conventional sails, too much consideration has been given to aerodynamic characteristics, and a fixed idea has developed that the shape of the sail itself must be curved into a predetermined curved surface. In order to fulfill its role as a curved surface, it is not necessarily necessary to make it a curved surface.
In short, they concluded that any shape that could harness the power of the wind would be sufficient.

(Problems to be solved by the invention) This invention was made based on the above-mentioned actual situation and research results, and the problem to be solved by the invention is that even if the structure is simple, it can sufficiently fulfill its role. Our goal is to provide sails that can. and,
The objective is to provide a sail that can be applied as is even to small vessels already in use.

(Means for Solving the Problems) In order to solve the above problems, the means adopted by the present invention is to fix the upper and lower sides horizontally to the mast and bend them in a straight line at the bending points. A frame body of the sail is formed by a rod, a holding column that is rotatably supported by the horizontal rods at the bending point and holds a part of the deployed sail, and support columns arranged and fixed at both left and right ends of the horizontal rod. each of the support columns is made rotatable with respect to the horizontal rod and is assembled so as to be prevented from rotating by a stopper means, one end of the sail is connected to one of these support columns, and the support column is This sail device is characterized in that a winding member connected to the other edge of the sail is connected to the other end of the sail.

This means will be explained below according to a specific example shown in the drawings.

FIG. 1 shows a front view of a sail device 100 according to the present invention, and this sail device 100 includes a frame 10 fixed to the upper side of a mast 31, and a sail 20 attached to this frame 10. 3, and is attached to a mast 31 of a ship 30, as shown in FIG. The mast 31 of this ship 30 is divided into two parts, upper and lower, and the upper side of the mast 31 can be rotated by an appropriate angle by a rotation device 32 provided on the lower side of the mast 31. And the sail device 100
By appropriately rotating the upper side of the mast 31, the mast 31 can be placed at the most efficient position relative to the direction of the wind. In addition, this sail device 10
The zero rotation may be performed by remote control in the steering room, or may be performed directly by the operator using the rotation device 32.

The frame body 10 mainly consists of horizontal rods 11, holding columns 12, and support columns 13, and there are one pair of each horizontal rod 11, one holding column 12, and one support column 13. As shown in FIG. 2, each horizontal rod 11 is bent at two bending points 11a in the middle, and is otherwise completely straight. That is, each of the horizontal rods 11 is constructed by cutting commercially available bars or pipes into appropriate lengths and connecting them to each other by appropriate means, and this connecting part is the bending point. 11a. Further, the horizontal rod 11 is fixed horizontally to the mast 31 by a support rod 11b and a connecting rod 11c fixed to the upper part of the mast 31, so that it can be held at a predetermined position relative to the mast 31. I have kept it.

As shown in FIG. 4, FIG. 7, and FIG. 8, each holding column 12 has a sleeve 11d interposed at the bending point 11a of each horizontal rod 11, and the support shaft of the holding column 12 is inserted into the sleeve 11d. 12a is fixed. The support shaft 12a and the sleeve 12b coupled to the holding column 12 are capable of vertical movement and rotation relative to each other. However, this sleeve 12b is prevented from moving up and down with respect to the support shaft 12a using a spacer, etc., so that each holding column 1
2 is designed to be able to freely rotate at a constant position with respect to each horizontal rod 11 located above and below it.

Each support column 13 basically corresponds to each of the above-mentioned holding columns 1.
2, and is connected to a support shaft 13a provided at both ends of each horizontal rod 11, and a support column 13 that is spline-fitted and supported by the support shaft 13a and rotates integrally with the support shaft 13a. sleeve 13
It consists of b. A gear box 14 disposed below the horizontal rod 11 is connected to each support shaft 13a located below each support column 13.

The gearbox 14 has its output shaft supported by a support column 13.
When the user rotates the handle 15, the support shaft 13a is connected to the support shaft 13a.
a, thereby rotating the sleeve 13b. Also, this gear box 1
4 has a gear stopper 16 which is a stopper means, and when the gear stopper 16 operates, the rotation of the gear in the gear box 14 is stopped, and thereby the support shaft 13a of the support column 13, that is, the sleeve 13b is prevented from rotating.

The sail 20 is made of flexible cloth or the like, and one longitudinal edge of the sail 20 is connected to each sleeve 13 described above.
It is fixed to either side of b. Further, a plurality of winding members 21 are connected to the other edge of the sail 20, and the free end of each winding member 21 is connected to the other sleeve 13b.

(Mode of use and operation) The operation of the sail device 100 configured as above will be explained below.

first. The sail device 100 is manufactured in a factory or the like, transported to a port or the like where a ship that requires the sail device 100 is located, and installed on the ship at that location. In this case, in the case of a ship, the mast 31 may be provided in advance on the deck or the like.

When the assembled sail device 100 is not used, the sail 20 is wound up on one support column 13 side, and is in a so-called folded state. That is, the frame body 10 is designed to allow sufficient wind to pass through, and each winding member 21 connected to the other support column 13 is in a fully extended state. In addition, the gear pawl 16 of each gear box 14
is in a locked state to stop the rotation of the gear.

When it is desired to extend the sail device 100 from this state, the gear pawls 16 of both gearboxes 14 are released. Next, the handle 15 of the gearbox 14 on the side to which the winding member 21 is attached is rotated to wind up each winding member 21 onto its support column 13. As a result, the sail 20 is sequentially unrolled from its support column 13 and expanded.
When the sail 20 is fully extended, the gear pawls 16 of each gear box 14 are brought into a locked state with a predetermined tension applied to the sail 20. Thereby, the sail 20 is fixed in the expanded state. At this time, each holding column 12 guides the winding member 21 and the sail 20 so that the sail 20 can be expanded smoothly.

When the sail 20 is extended in this way, each horizontal rod 11 is bent at its bending point 11a even though it is straight between each holding column 12 and the supporting column 13 and between both holding columns 12. Since it is held by each holding column 12 fixed to that part, it forms a surface that produces predetermined aerodynamic characteristics. Furthermore, since the sail 20 is supported with a predetermined tension applied to both its left and right edges, it can maintain its fully expanded state even if it is not supported by its upper and lower edges. be.

Further, when a ship equipped with the sail device 100 is under strong wind and the sail 20 is desired to be retracted, the operation opposite to that described above may be performed.

Furthermore, in this sail device 100, even if all the members constituting the frame plate 10 are made of straight members, the force of the wind can be fully utilized. This is based on the conclusion obtained through experiments by the inventors that in order to obtain sufficient aerodynamic characteristics, there is no need for the planar shape of the sail 20 to be a curved surface like the cross section of an airplane wing; This is based on the fact that it is sufficient to have a shape that is sufficient to receive it. Therefore,
Since this sail device 100 can have its frame 10 made of a straight material, it can be easily manufactured as having the required aerodynamic characteristics.

(Embodiment) FIG. 9 shows rotation of each support column 13 of the sail device 100 and other stopper means 4 for preventing this.
0 configuration is shown. In this example, a spline groove 41 is formed in each horizontal rod 11, and spline teeth 42 formed at the lower end of each support shaft 13a are spline-fitted into the spline groove 41. As a result, each support shaft 13a and sleeve 13b can slide in the vertical direction, but are prevented from rotating relative to each other.
Further, a handle 43 is provided at the lower end of the support shaft 13a, and by lifting this handle 43, the spline fitting between the spline groove 41 and the spline tooth 42 is released, and by rotating this handle 43, the spline fitting between the spline groove 41 and the spline tooth 42 is released. Thus, the support shaft 13a and the sleeve 13b can be rotated.

In addition, when rotating the handle 43, if the locking member 45 provided on a part of the horizontal rod 11 is locked in the locking groove 44 formed in a part of the handle 43, the handle 43 can be rotated. This design eliminates the need to constantly hold the wheel up when rotating. This example is suitable for the sail device 100 applied to a relatively small vessel because the rotation of the handle 43 is directly transmitted to each support shaft 13a.

(Effect of the invention) As explained above, the sail device 100 according to the invention
Not only can this be used to sufficiently assist the navigation of small ships, but it can also be constructed using straight members, making it extremely easy to manufacture. be. Therefore, the manufacturing cost can be reduced, and this type of sail device 100 can be sufficiently applied to small vessels such as fishing boats.

Moreover, since this sail device 100 has a simple configuration, only the sail device 100 is manufactured at a factory, and transported to a port where a ship that needs it is anchored, and then It only needs to be installed on a ship, and it can be fully applied to ships that are already in use.

[Brief explanation of the drawing]

Figure 1 is a front view of the sail device according to the present invention, Figure 2 is a plan view of the same, Figure 3 is a perspective view showing the sail device applied to a ship, and Figure 4 is the main part of Figure 1. 5 is a partially enlarged front view of the lined portion in FIG. 4, FIG. 6 is a plan view of the same, FIG. 7 is a partially enlarged front view of the lined portion of FIG. 4, and FIG. The plan view and FIG. 9 are partially enlarged front views corresponding to FIG. 5 showing another embodiment. Explanation of symbols, 100...Sail device, 10...Frame body, 11...Horizontal rod, 11a...Break point, 12...
Holding column, 13... Support column, 16... Stopper means, 20... Sail, 21... Winding member, 30...
...vessel, 31...mast, 40...stopper means.

Claims (1)

[Scope of utility model registration request] Upper and lower horizontal rods fixed horizontally to the mast and bent linearly at the bending points, and retainers that are rotatably supported by these horizontal rods at the bending points to hold a part of the deployed sail. The frame body of the sail is constituted by the columns and support columns arranged and fixed at both left and right ends of the horizontal rod, and each of the support columns is made rotatable with respect to the horizontal rod, and the rotation thereof is stopped by a stopper means. A sail device characterized in that one end of the sail is connected to one of these support columns, and a winding member connected to the other end edge of the sail is connected to the other support column.