JPH0781673A - One line reef system - Google Patents

Abstract

PURPOSE:To provide a one line reef device by which reef of a sail of a yacht or the like can be carried out simply by drawing in a single line and with which even a small boat can be equipped without enlarging a cross-sectional structure of a boom. CONSTITUTION:One line reef system is formed in such a way that a reef line 3 lowered after one end is fixed to a reef tack 2 of a sail 1, is passed round one pulley 71 of two pulleys 71 and 72 whose base ends are juxtaposed with each other in a boom 6 through a constant pulley on a mast 4. The reef line 3 is derived from the tip side of the boom 6, and is passed round a pulley 10 installed removably freely on a reef screw 9 through a guide member 8, and after it is passed round the other pulley 72 of the two pulleys 71 and 72 whose base ends are juxtaposed with each other in the boom 6 through a pulley 11 in the tip of the boom 6, it is derived outside of the boom 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for reducing sails of sailboats such as yachts.

[0002]

2. Description of the Related Art A halyard line (no reference numeral) for suspending a conventional mainsail 1 of a yacht or the like is drawn out from a lower side hole of the mast 4 through the mast 4 and extends when the mainsail 1 is stretched. The main sail 1 is provided with leaf tacks 2 formed of a plurality of holes at the mast side edge of the mainsail 1, and the rear claw 9 of the main sail 1 is also formed of a plurality of holes. Is provided, the clew out hole 12 is installed at the tip of the lower edge, the gooseneck 13 is installed at the lower end of the mast, and the boom 6 is horizontally fixed to the mast 4 below the mast 4, The leaf line 3 whose base end is led to the outside of the boom 6 via pulleys 7 and 11 arranged at the front and rear ends in the boom 6 passes through the pulley 7 at the rear end of the boom 6 and further passes through a leaf clew 9. The back side of the mainsail 1 is guided downward, of a fixed structure in the boom 6 were of basic type Te. (See Conventional Example 1 and FIG. 3.) As another type, the leaf line 3 having one end tied to the boom 6 rises and descends through the leaf clew 9, and the tip pulley 11 and the rear of the boom 6 and the rear side. One that is drawn out from the boom 6 via an end pulley 7 (mast side pulley) and is pulled or loosened through a hole of the leaf tack 2 via a pulley 14 at the lower end of the mast 4 (conventional example 2). ,
See FIG. ) Furthermore, in another type, one end of the leaf line 3 tied to the gooseneck 13 rises, passes through the leaf tack 2, and then descends on the back side of the mainsail 1 to move to the two pulleys of the boom 6. It is constructed such that it is led out of the boom 6 through 7, 11 and descends through the hole of the leaf clew 9 and is pulled and loosened through the guide roller and the pulley 14 at the lower end of the mast 4 (conventional example 3 , Fig. 5
Running block 15 to the leaf line 3 are connected within the boom 6 central portion of one end as a reference) Another type fixed to the boom 6 tip _1, 15 one running block 15 ₁ and the boom 6 in the tip of the ₂ It is guided to the outside of the boom 6 through the fixed pulley 11 of the above, and is raised, passed through the leaf clew 9 and lowered, and then is tied to the boom 6, while one end is attached to the leaf tack 2
The line 3 ₃ fixed to the lower part is lowered along the mast 4, and the boom is moved through the constant pulley 7 in the boom 6, the other movable pulley 15 ₂ connected at the center, and the mast side constant pulley 7 in the boom 6. There is a structure (conventional example 4, see FIG. 6) in which it is led out to the outside and wound up and unwound via a pulley 14.

[0003]

Of the above-mentioned conventional reduced sailing systems for sails, the one referred to as a slab leaf shown in FIG. 3 is the most basic system, and although there are few troubles, a leaf tack is a gooseneck. There was a minimum of three people who needed to fix the metal fittings, draw the reef line, and release the halyard line. Also, the one-line leaf shown in FIG. 4 as an improved version is 35
It is often used for boats up to the ft position, but if the timing to release the halyard is incorrect, it will not be able to properly reduce the sails, and the stronger the wind, the more likely it is that the reef will fail. Furthermore, the one line leaf shown in FIG. 5 has the same idea as that shown in FIG. 4, and the leaf line is first guided to the leaf clew, then returned to the tack and fixed at the gooseneck. However, it also has the same drawbacks as those shown in FIG.

The one shown in FIG. 6 is similar to that shown in FIG. 4, but there are two movable pulleys in the boom, which separate the action of drawing the leaf line and the leaf clew. , Therefore, the clew will be pulled in at a speed twice as fast as the tack, and both will fall onto the boom and be folded at almost the same time, which is convenient, but since the movable pulley must be provided in the boom, However, there is a problem that it is difficult to operate such a structure with a small boat (35 ft or less). The present invention was devised in order to solve the above-mentioned problems, and can easily perform a leaf of a sail such as a yacht (retracted sail) by pulling in one line, and a cross-sectional structure of a boom. It is an object of the present invention to provide a one-line leaf device that can be equipped on a small boat without increasing the size.

[0005]

In order to achieve the above object, in the one-line leaf system of the present invention, a leaf line which is fixed at one end to a leaf tack of a sail and then lowered is provided with a guide member on a mast. Via the guide member provided at the base end of the boom, pass through the inside of the boom, hang around the guide member provided at the tip of the boom, and lead out from the boom upward and installed on the leaf clew. A guide member provided at the tip of the boom, passed through the inside of the boom, hung over the guide member provided at the base end of the boom, and pulled out from the boom. There is provided one characterized in that the sail is adjusted by pulling the leaf line.

[0006]

[Action] When the one-line leaf system configured as described above wind becomes stronger, pulling the end line 3 ₄ leading to the winding 16 of the leaf line 3 in order to reduce the area of the sail, one end The leaf 3 ₃ fixed to the leaf tack 2 is pulled downward, and the boom 6
The pulley is further pulled through the inner pulley 7 ₁ , the leaf line 3 ₁ is pulled downward through the guide member 8 and the pulley 10, and the pulley 11 in the boom 6 is hung around the leaf line 3 ₂ . The leaf tack 2 is pulled, further pulled through the pulley 7 ₂ on the base end side of the boom 6, and the leaf tack 2 is lowered, so that the gooseneck 13 is hooked. Needless to say, at that time, the leaf clew 9 is also lowered almost at the same time. In this way, the tack and clew can be drawn in with a good balance by lowering the boom tip side and the base end side of the sail in a well-balanced manner. In addition, since it is not necessary to provide a moving pulley inside the boom as in the conventional type one-line leaf system, the boom can be made thin, so that it can be mounted on a small boat.

[0007]

EXAMPLES Examples will be described below with reference to the drawings. Although not mentioned here, it should be added that the same members are described with the same reference numerals in the description of the specification. FIG. 1 is an overall structural view of a yacht equipped with the one-line leaf system of the present invention, FIG. 2 (a) is the one-line leaf system of the present invention, and FIG. 2 (b) is an explanation of the force exerted on the sail. 3 to 6 are views showing the leaf devices of Conventional Examples 1 to 4. 1, 1 is a mainsail, 2 is a leaf tack, 3 is a leaf line, 4 is a mast, 9 is a leaf clew, 13 is a gooseneck, 17 is a jib sail, and 18 is a yacht. In the one-line leaf system of the present invention in FIG. 2, a leaf tack 2 is provided on the mast 4 side of the lower portion of the mainsail 1 and a leaf clew 9 is provided on the opposite side edge, and the line is fixed to the leaf tack 2. 3 ₃ extends downward, is hung around the pulley 7 ₁ at the base end of the boom 6 via the pulley 5 at the lower end of the mast 4, is led out near the tip of the boom 6, and is guided through the guide member 8. Becomes a line 3 ₁ , and the line 3 ₂ is hung around a pulley 11 at the tip in the boom 6 as a leaf line 3 via a pulley 10 suspended from a leaf clew 9 and another pulley 7 ₂ at the base end. Through the boom 6 via
Guiding pulleys 14 through line 3 becomes _4, is wound by the winding device 16 is configured to be pulled.

In the above embodiment, the pulleys 5, 7 ₁ , 7 ₂ ,
The pulleys of the movable pulleys 15 ₁ and 15 ₂ may be any guide members made of, for example, nylon resin so that the rope slides. Needless to say, the pulleys need not be in the boom, and the pulleys 7 ₁ , 7 ₂ at the base end of the boom need not be in parallel. Furthermore, pulley 10 is suspended line 3 ₂ always a leaf clew 9 in the above
There is no need to go through. When setting this one-line leaf system, attach one end of line 3 ₃ to leaf tack 2
Pulley 10 and Leaf Clew 9
The assembly can be completed simply by attaching it to the ring.

Normally, when the mainsail 1 is exposed to wind, a force is mainly applied to three points A, B and C as shown in FIG. 2B, and A≈B> C. When considering a leaf system, if the same force is applied to B and C, only C will be drawn first, and B will not be drawn easily. Therefore, by using a pulley 10 (see FIG. 2 (a)) that halves the force on the clew side, less friction is required, and a tensile force is applied to the leaf clew 9 with a smaller force, and The leaf tack 2 can be balanced and pulled out. Of course, it has been halyard line loosened not shown when the leaf, not to mention pulling the line 3 ₄ winder 16, leaf lines 3,3 _{1-3 4} is tension as indicated by the arrow , The leaf ends.

[0010]

Since the present invention is constructed as described in detail above, it is not necessary to provide a moving pulley inside the boom as in the conventional one, and the boom can be made thin and the leaf mechanism can be simplified. In addition, since the pulley is used on the leaf clew side, the friction acting on that part is extremely reduced, and a tensile force can be reliably applied to the leaf clew with a smaller force. Furthermore, when the user sets the leaf line that has been removed, it is only necessary to attach the pulley on the leaf clew side to the ring of the leaf clew of the sail and tie the end of the leaf ring to the ring on the tack side. Is easy. And so on.

[Brief description of drawings]

FIG. 1 is an overall structural view of a yacht equipped with the one-line leaf system of the present invention.

FIG. 2A is a diagram showing a one-line leaf system of the present invention. (B) is an explanatory view of the force applied to the sail.

FIG. 3 is a diagram showing a leaf system of Conventional Example 1.

FIG. 4 is a diagram showing a one-line leaf system of Conventional Example 2.

FIG. 5 is a diagram showing a one-line leaf system of Conventional Example 3.

FIG. 6 is a diagram showing a one-line leaf system of Conventional Example 4.

[Explanation of symbols] 1 Mainsail 2 Leaf tack 3 Leaf line 4 Mast 5 Pulley 6 Boom 7 ₁ Pulley 7 ₂ Pulley 8 Guide member 9 Leaf clew 10 Pulley 11 Pulley 12 Clew out hole 13 Gooseneck 14 Guide pulley 15 ₁ Moving pulley 15 ₂ Pulley 16 Winder 17 Jib Sale 18 Yacht

Claims (1)

[Claims] 1. A leaf line, which is fixed at one end to a leaf tack of a sail and then lowered, is turned upward through a guide member on a mast, and is hung over a guide member provided at a base end of the boom to be installed in a boom. Through the guide member provided at the tip of the boom and led out upward from the boom, turned downward through the guide member provided at the leaf clew, and guided through the guide member provided at the tip of the boom. A one-line leaf characterized by passing through the inside of the boom, straddling a guide member provided at the base end of the boom, and being drawn out from the boom, and adjusting the reduced sail by pulling the leaf line. system.