JP2012006561A - Foldable cascade sail for wind ship, and wind ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foldable cascade sail for a wind ship whose sail can be folded in the shape of a rod, and to provide a wind ship with the cascade sail.SOLUTION: The sail includes: a mast 1; a pair of link frames 3 which is link-connected to the mast 1; the sails 10a and 10b formed by attaching a large number of wings 2 to each of the link frames 3 in cascade in parallel; a sail driver 4 which is located between the sail and the mast to fold and expand the sail; and a turning seat 5 which turnably supports the mast.

Description

  The present invention relates to a fold-type sail for a foldable sailing ship and a sailing ship.

In order to realize CO ₂ reduction and energy saving effect for preventing global warming, a sailing ship or a steaming ship (hereinafter collectively referred to as a “sailing ship”) has attracted attention. The sailing ship uses wind power as propulsion power, and can achieve CO ₂ reduction and energy saving effect. Also, in general, an auxiliary engine such as an engine is mounted for navigation in the case of no wind or bad weather.
In such a sailing ship, one provided with a manual mast raising / lowering device (for example, refer to Patent Document 1), or one in which a cylindrical hard sail is configured to be nested so that the sail can be expanded and contracted in the vertical direction (for example, And Patent Document 2) have been proposed.

Japanese Utility Model Publication No. 5-71090 JP 2009-214633 A

As described above, when a sail is equipped on a ship, the wind pressure resistance of the ship increases when the sail is not used, or the mast or sail is damaged or the ship itself overturns due to the wind force applied to the mast or sail during stormy weather. Cause damage. In addition, masts and sails may obstruct the operation of cargo handling equipment such as cargo handling cranes. In addition, masts and sails obstruct the view from the ship's bridge and obstruct the view when maneuvering.
Also, to reduce these obstacles, if you drop the sail on the deck or drop it below the deck, a large deck occupying area is required to collapse the big wing row as it is or store it under the deck, A large opening and hatch cover are required on the deck.

  In view of the above-described problems, an object of the present invention is to provide a foldable sail for a sailboat capable of folding a sail in a rod shape and a sailing ship provided with the cascade sail.

  The invention of claim 1 includes a mast, a pair of link frames coupled to the mast in a link manner, a sail in which a plurality of wings are attached in parallel in each of the link frames, and a sail and a mast. A foldable sail for a foldable sailing ship comprising sail driving means disposed between them and capable of folding and deploying a sail and a swivel seat that supports the mast so as to be able to swivel.

  The invention of claim 2 is provided with mast raising and lowering means for allowing the mast to be raised and lowered, wherein the swivel seat is rotatably installed on the deck, and the folded sail is stored under the deck through the swivel seat. It is characterized by doing.

  The invention of claim 3 is characterized in that, in claim 1 or 2, the sail is folded in a rod shape along the mast upward.

  A fourth aspect of the invention is a sailing ship comprising the foldable sail for a folding sailing ship according to any one of the first to third aspects.

  The fold-type sail for a folding sailboat according to the present invention is configured as described above, and can be folded into a rod shape along the mast when it is necessary to store the sail. Further, the sail can be stored under the deck with a small storage occupation area without requiring a large opening or a large hatch cover on the deck.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the folding sailboat cascade sail in one Embodiment of this invention, (a) is a front view of the state which expanded the sail body, (b) is AA arrow sectional drawing of (a). (C) is a top view of a swivel seat. It is an enlarged view of the B section and the C section of FIG. It is a schematic diagram which shows the state which folded sail. It is a schematic diagram which shows the storage state of sail, (a) is a front view, (b) is a top view. It is explanatory drawing of a mast raising / lowering mechanism, (a) is a mast raising state, (b) is a figure which shows a mast lowering state. It is an enlarged view of a mast raising / lowering mechanism, (a) is a rod expansion | extension state, (b) is a figure which shows a rod contraction state.

FIG. 1 is a schematic view of a fold-type sail for a folding sailboat according to an embodiment of the present invention. FIG. 1 (a) is a front view of a state in which a sail is unfolded, and FIG. 1 (b) is an AA view of FIG. An arrow sectional view, (c) is a top view of a swivel seat.
In FIG. 1, reference numeral 10 denotes a sailing wing cascade sail, and a pair of sails 10 a and 10 b are arranged on both sides of the mast 1. Each of the sails 10a and 10b has the same configuration, and a plurality of wings 2 having an arc-shaped cross section are fixedly attached in parallel to a substantially rectangular link frame 3 connected in a link manner in a cascade manner. .
The link frame 3 includes an upper arm 31, a lower arm 32, and a vertical frame 33, and has a configuration in which links are connected at square corners. That is, the base ends of the upper arm 31 and the lower arm 32 are hinged to the mast 1, and the other ends of the arms 31 and 32 are hinged to the upper and lower ends of the vertical frame 33, respectively. Frame 3 is configured. Between the left and right upper arms 31 and 31 and the mast 1, sail driving means 4 is provided that allows the sails 10a and 10b to be folded and unfolded. The sail driving means 4 is a hydraulic cylinder 4a, 4b. Both ends of the hydraulic cylinders 4a and 4b are hinged to the mast 1 and the upper arms 31 and 31. The shape of the link frame 3 is not limited to a substantially square shape. A trapezoidal shape or a triangular shape may be used.

  The mast 1 is vertically supported through a swivel seat 5 that is rotatably installed on a deck 100. The mast 1 is provided with a pair of guide keys 11 extending in the axial direction. By engaging the guide keys 11 with the key grooves 51 of the swivel seat 5, the mast 1 can be guided and prevented from rotating in the vertical direction. Yes. A space provided between each of the semicircular portions 52 provided with the key grooves 51 serves as a passage 53 for storing the folded sails 10 a and 10 b under the deck 100.

  Further, although illustration of the driving means for the swivel seat 5 is omitted, for example, the swivel seat 5 may have a worm gear mechanism, and the worm gear mechanism may be rotationally driven by a hydraulic motor or the like.

  The mast 1 is raised and lowered by an elevating mechanism 6 (mast elevating means) described later. A lid 12 that closes the opening of the swivel seat 5 is attached to the upper end of the mast 1 when the sails 10a and 10b are stored.

FIG. 2 is an enlarged view of a portion B and a portion C in FIG. 1 and shows an example of a method for attaching the blade 2. In FIG. 2, 31 is an upper arm, 32 is a lower arm, 33 is a vertical frame, and 34 is a link joint.
The upper end of the wing 2 is coupled to the central portion of the arc-shaped cross section by the upper arm 31 and the projection shaft 21, and both ends (string end portions) of the arc-shaped cross section are coupled to the lower arm 32 and the projection shaft 22 at the lower end. . Thereby, since the wing | blade 2 is supported by each arm 31 and 32 by three points | pieces of an upper-lower end, it is attached in a fixed state.

FIG. 3 is a schematic view showing a state in which the sails 10a and 10b are folded, and FIG. 4 is a schematic view showing a state in which the sails 10a and 10b are further stored under the deck 100.
When the sails 10a and 10b are folded, the rods of the hydraulic cylinders 4a and 4b, which are the sail drive means 4, are reduced as shown in FIG. As a result, the upper arms 31, 31 are pulled upward, so that the sails 10 a, 10 b attached to the link frames 3, 3 are also folded upward together with the link frames 3, 3. Thus, the sails 10a and 10b and the link frames 3 and 3 are folded along the mast 1 into a bar shape or an I shape. In addition, if the rods of the hydraulic cylinders 4a and 4b are extended, the sails 10a and 10b can be deployed as they are.

  Next, when storing the sails 10a and 10b, if the mast 1 is lowered by the lifting mechanism 6 (see FIGS. 5 to 6), the sails 10a and 10b are stored from the state of FIG. 3 to the state of FIG. Can do. At this time, the sails 10 a and 10 b are stored through a passage 53 provided between the semicircular portions 52 and 52 in the swivel seat 5. When the sails 10a and 10b are stored, the lid 12 attached to the upper end of the mast 1 closes the opening of the swivel seat 5 to prevent inundation of seawater or the like.

  There are two methods for folding the sail: folding the sail upwards and folding the sail downwards. The former method is desirable because there is no risk of rushing.

FIGS. 5A and 5B are explanatory diagrams of the mast elevating mechanism 6, in which FIG. 5A shows a mast rising state, and FIG. 5B shows a mast lowering state. In addition, the figure which looked at the mast raising / lowering mechanism 6 from the side is described beside each figure of (a), (b). FIG. 6 is an enlarged view showing the hydraulic cylinder 61 and pulley double speed mechanism constituting the mast elevating mechanism 6, wherein (a) is a rod extended state and (b) is a rod reduced state.
The mast elevating mechanism 6 includes a hydraulic cylinder 61, a plurality of movable pulleys 62 attached to the tip of the rod, a plurality of fixed pulleys 63, a guide pulley 64, and a plurality of times between these movable pulleys 62 and the fixed pulleys 63. The wire 65 is wound and has one end 65a fixed to the lower end of the mast 1 and the other end (not shown) fixed to the movable pulley mounting portion 62a. Further, as shown in FIG. 5, the base end of the hydraulic cylinder 61 is hinged in the swivel seat 5, and the rod tip is hinged to the movable pulley mounting portion 62a. The wire 65 is wound between the movable pulley 62 and the fixed pulley 63, and one end 65 a is fixed to the lower end of the mast 1 through the guide pulley 64. The fixed pulley 63 and the guide pulley 64 are mounted inside the swivel seat 5 at locations that do not interfere with the stored sails 10a and 10b.

When the mast 1 is raised on the deck 100, the rod of the hydraulic cylinder 61 is contracted (retracted) as shown in FIGS. 5 (a) and 6 (b). Then, the mast 1 can be rapidly projected and raised on the deck 100 by the pulley double speed mechanism in which the wire 65 is wound between the movable pulley 62 and the fixed pulley 63. As a result, the retracted sails 10a and 10b can be raised on the deck 100 (see FIG. 3).
On the contrary, when the mast 1 is lowered, if the pressure oil in the hydraulic cylinder 61 is released while controlling the speed, the rod extends through the wire 65 due to its own weight such as the mast 1 and the sails 10a and 10b (FIG. 5 ( b), see FIG. Thus, the folded sails 10a and 10b can be stored under the deck 100 through the swivel seat 5 (see FIG. 4).

Since the sailboat wing cascade sail 10 of the present embodiment is configured as described above, the following effects are obtained.
(1) Since the sails 10a and 10b can be folded in a rod shape along the mast 1, the wind pressure resistance of the ship can be reduced by folding the sail when the sail is not used.
(2) By folding the sail during stormy weather, the wind power received by the mast and the sail can be reduced, and damage such as damage to the mast and the sail, or overturning of the ship itself can be prevented.
(3) By storing the sail under the deck, it is possible to prevent the mast and the sail from obstructing the operation of the cargo handling device such as a cargo handling crane.
(4) By folding the sail or storing it under the deck, the view from the bridge of the ship is not obstructed and the view during maneuvering is expanded.
(5) When storing the sail under the deck, a large area opening or a large hatch cover is not required on the deck.
(6) The storage occupation area of the sail can be reduced as compared with the method of raising and lowering the mast.

DESCRIPTION OF SYMBOLS 1 Mast 2 Wing 3 Link frame 4 Sail drive means 5 Turning seat 6 Elevating mechanism (mast elevating means)
4a, 4b Hydraulic cylinder 10 Sailing vessel cascade sail 10a, 10b Sail 11 Guide key 12 Lid 21, 22 Projection shaft 31 Upper arm 32 Lower arm 33 Vertical frame 34 Link coupling part 51 Key groove 52 Semicircular part 53 Passage 61 Hydraulic cylinder 62 Moving pulley 63 Fixed pulley 64 Guide pulley 65 Wire 100 Deck

Claims (4)

With the mast,
A set of link frames coupled in a link manner to the mast;
A sail in which a plurality of wings are attached in parallel in each of the link frames in cascade;
A sail drive means disposed between the sail and the mast and capable of folding and unfolding the sail;
A pivot seat for pivotally supporting the mast;
A wing-type sail for a foldable sailing ship.   The mast raising / lowering means for allowing the mast to move up and down is provided, the swivel seat is rotatably installed on the deck, and the folded sail is stored under the deck through the swivel seat. The fold-type sail for a folding sailboat according to 1.   The fold-type sail for a folding sailboat according to claim 1 or 2, wherein the sail is folded in a rod shape along the mast upward.   A sailing ship comprising the foldable sail for a foldable sailing ship according to any one of claims 1 to 3.

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