JPH01317892A - Automatic expansion sail device of fore and aft rigged vessel - Google Patents

Abstract

PURPOSE:To automatically expand and contract a sail without damaging a fine sight of a sailing vessel by mounting a sail support consisting of a gaff, mast and bearings swingably to the mast erected on a deck to rotate a sail take-up pipe provided near the bearing and drive a sail expanding wire. CONSTITUTION:A sail support integrally formed of upper, intermediate and lower bearings 3a-3c, a gaff 5 and a boom 6 is mounted swingably to a mast 1 erected on a deck with a turning drive motor 15. A sail take-up pipe 7 rotated by a sail take-up motor 18 is provided near the respective bearings 3a-3c to take up sails 11a, 11b and connect sail expanding wires 12a-12c to ends of respective sails 11a, 11b. By the rotation of the sail take-up pipe 7 and the drive of sail expanding wires 12a-12c are expanded and contracted the sails. Compared with prior rigid sails, the sails can be automatically expanded and contracted without damaging a fine sight of a sailing vessel.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an automatic sail expansion and retraction device for a vertical sailing ship.

(Prior Art) As an automatic sail expanding and retracting device, a horizontal sail type device as shown in FIGS. 6 to 8 is known. This has a mast fixing part d on the upper deck a, a mast rotating part erected above this which can be rotated by a hydraulic motor C, and an expandable sail e attached to this mast rotating part. be. And on the sail e, a ma frame g with a canvas stretched over it is installed symmetrically.

Each sail can be retracted by a hinge f as shown in Fig. 8. h is a hydraulic cylinder for expanding and retracting sails.

By operating this, the sail e is extended and retracted via the sail extension lever i.

In this type of sail spreading device, l) Since the mast and sail rotate as a unit, it is not possible to attach supporting materials such as stays, and the diameter and thickness of the members are large, resulting in a large sail weight. It had become. Therefore, the driving horsepower required to rotate the mast was naturally large. Furthermore, the area of the sail is 1/
Since the wind pressure was only about 2, the wind pressure resistance when the sails were retracted was large.

Moreover, it was inferior in beauty, which is the most important requirement for a sailing ship.

Further, as another example, a sailing device as shown in FIGS. 9 and 10 is also known. As shown in Fig. 9, this has a fixed mast j erected, a rotating pipe k installed obliquely to the mast j, and a triangular sail rigging wound around the rotating pipe k. .

The spreading sail is made by stretching a sail spreading wire n through a pulley provided at the tip of a swing boom m provided on the deck, and tying the tip to the apex of the sail rig.

With this structure, the angle of attack can be adjusted by rotating the swing boom m, but the area of the sail that receives the wind is small, and therefore the efficiency of the sail is poor.

(Problems to be Solved by the Invention) In view of the prior art, to provide an automatic expansion and contraction device that can reduce the labor involved in sailing operations, is aesthetically pleasing, and can be applied to passenger ships. This is what I am trying to do.

(Means for Solving the Problems by the Invention) It consists of a fixed part consisting of a mast that is erected and fixed on the deck, and a swing part that is rotatably supported by a swing part drive motor with respect to the fixed part, and the swing part is connected to the mast by a shaft. It has an upper bearing part, an intermediate bearing part, and a lower bearing part to be supported, and a gaff is provided to project laterally from the intermediate bearing part, and a boom is provided to project laterally from the lower bearing part, and further between the upper bearing part and the lower bearing part A sail winding pipe is rotatably supported by a winding motor, and the sail attached to the sail winding pipe can be spread by a spreading/sail wire connected to a sail spreading winch.

Further, a sail winding motor is separately provided on the gaff to drive the upper and lower sail winding pipes separately.

(Function) The swivel part can be freely swiveled with respect to the fixed part of the mast by the swivel part drive motor, so that the angle of attack can be adjusted. In addition, the winding pipe of the swivel part can be driven by the sail winding motor, so
The sail can be automatically furled, and by pulling the spreading wire attached to the end of the sail with a winch, it has become possible to automate the spreading of the sail as well.

(Example) An explanation will be given based on FIGS. 1 and 2. 1 is a mast that constitutes a fixed part and is erected on the deck. Reference numeral 2 denotes a rotating part that is rotatably supported on the mast 1. The rotating part 2 is the second
As shown in the figure, the mast 1 has three bearing parts 3a, 3b, and 3c, an upper part, an intermediate part, and a lower part, which are pivotally supported by the mast 1, and each bearing part is integrally connected by a rotating part reinforcing member 4. Note that the intermediate bearing portion 3b may be omitted or may be increased depending on the height of the mast 1. Also, a gaff 5 and a boom 6 are integrally provided laterally protruding from the intermediate bearing portion 3b and from the lower bearing portion 3c. 7 is a sail winding pipe rotatably attached between the upper bearing part 3a and the lower bearing part 3c.

As shown in FIG. 2, the intermediate bearing portion 3b has a pipe through hole 8.
is provided.

9 is a fixed wire stretched between the upper bearing portion 3a and the tip of the gaff 5; 10 is a fixed wire stretched between the tip of the gaff 5 and the tip of the boom 6.

Reference numeral 11a denotes a triangular sail that can be wound up by the sail winding pipe 7, and is expanded by a spreading wire 12a with one end fixed to the apex of the triangle. The sail spreading wire 12a passes from the inside of the gaff 5 to the inside of the mast 1, and is wound and spread by a sail spreading winch 13a provided on the deck. llb is a rectangular sail stretched between the gaff 5 and the boom 6, and can be wound around the lower part of the winding pipe 7. The sail 11b is a square top and bottom 2
The sail is spread by spreading wires 12b and 12c fixed to the corners. The wire 12b is passed through the mast 1 from inside the gaff 5 and connected to a sail spreading winch 13b provided on the deck. Further, the wire 12c passes through the inside of the boom 6 and is also connected to the sail spreading winch 13b.

Mast support stays 14a, 14b, and 14c are tensioned by turnbuckles 15a, 15b, and 15c.

Reference numeral 15 is a rotating part drive motor, which is connected to the mast 1 as shown in Fig. 4.
The gear 16 and the sector gear 17 engage with each other to rotate the boom 6 as shown by the arrow in FIG. 2, thereby adjusting the optimal angle of attack against the wind. 18 is a winding motor that drives the winding pipe 7.

In addition, with the above configuration, if one more winding motor 18 is installed on the gaff 5, it is also possible to adjust the sail surface speed.

(Function) Angle of Attack Adjustment: When the swing section drive motor 15 is driven, the swing section 2 rotates via the boom 6, and the angle of attack relative to the wind can be adjusted.

Sail winding: When the sail winding wire 12 is set free and the sail winding motor 18 is driven to rotate the sail winding pipe 7, the sail is winded.

Spreading the sail: When the sail spreading winch 13a or 13bti-11i is operated to wind up the sail spreading wire 12, the sail is spread.

In this case, if a winding motor is provided on the gaff 5, the upper triangular sail 11a can be separately wound by this motor to finely adjust the sail surface speed.

(Effects) The mast was fixed upright on the deck, and the rotating part was pivoted to this fixed mast, making it possible to adjust the angle of attack against the wind.

A sail winding pipe is installed in the slewing section, and a wire for winding and winding the sails is installed, making it possible to automate the winding and winding of the sails.

Since the mast is fixed, the stays can be attached freely, making it possible to reduce the weight of the mast.

Since the swing section is driven separately from the mast, it is possible to reduce the horsepower required for the drive motor.

This was not possible with conventional vertical sails as shown in Figure 9, but
In the present invention, the sail can be wound horizontally using a sail winding pipe provided vertically.

Therefore, depending on the wind speed, it is possible to sail with partially unfurled sails rather than full sails.

In this way, it became possible to automate the expansion and retraction of sails without compromising the beauty of the sailing ship.

[Brief explanation of the drawing]

FIG. 1 shows an automatic sail expanding and retracting device according to the present invention. Figure 2 is a view taken along the ■-■ arrows in Figure 1. FIG. 3 is a side view of only the rotating section. FIG. 4 is a detailed view of the rotating part drive motor attachment part. Figure 5 is a view in the direction of the ■ arrow in Figure 4. FIG. 6 is a perspective view of a known automatic sail extension device for vertical sails. FIG. 7 is also a top view. FIG. 8 shows the thin-necked state. FIG. 9 shows another example of an automatic sail extension device for vertical sails. FIG. 10 is a detailed plan view of the rotating boom section. In the figure: 1 Mast 2 Swivel parts 3a, 3b, 3c Bearing part 4 Swivel part reinforcing member 5
Gaff 6 Boom 7 Sail winding pipe 8 Pipe through hole 9 Fixed wire 10 Fixed wire 11a, llb sail 12a, 12b, 12c Sail spreading wire 13a, 13
b Sail spreading winches 14a, 14b, 14c Mast support stay 15
Swivel part drive motors 15a, 15b, 15c Turnbuckle 16 Gear 17 Sector gear 18 Sail winding motor Applicant Sumitomo Heavy Industries, Ltd. Sub-Attorney Patent Attorney Isamu Ohashi Figure 1 Figure 2 Figure 3 Shimoda'! 6tfJ3c Figure 4 Figure 6, / Figure 7

Claims (1)

[Scope of Claims] 1) Consisting of a fixed part consisting of a mast erected and fixed on the deck, and a swing part supported so as to be able to swing relative to the fixed part by a swing part drive motor, the swing part is pivoted to the mast. It has an upper bearing part, an intermediate bearing part, and a lower bearing part to be supported, and a gaff is provided to project laterally from the intermediate bearing part, and a boom is provided to project laterally from the lower bearing part, and further between the upper bearing part and the lower bearing part A sail winding pipe is rotatably supported by a winding motor, and the sail attached to the sail winding pipe can be spread by a sail spreading wire connected to a sail spreading winch. Automatic sail expansion and retraction device for vertical sailing ships. 2) The automatic sail expanding and retracting device for a vertical sailing ship according to claim 1, wherein a sail winding motor is separately provided on the gaff to drive the upper and lower sail winding pipes separately.