JPS6194886A - Device for collapsing mast on sailing boat - Google Patents

Abstract

PURPOSE:To maintain the widthwise stability of a sailing boat when a mast erected on a deck collapsible is collapsed, by connecting an adjusting cable having one end coupled with the deck to the pivotable center line of the lower end of the mast on the way of both side shrouds for supporting the mast. CONSTITUTION:The lower end of a mast 1 is pivotably supported on a mast step 2 on a deck 11 and the mast 1 is supported from both sides by shrouds 4 coupled on one ends with the deck 11. To the pivotal center line position of the lower end of the mast on the way of these shrouds 4 on both sides is connected an adjusting cable 7 coupled on one end with the deck 11. In the erecting and collapsing the mast 1 the adjusting cable 7 is drawn out or taken up so that the mast 1 can be maintained widthwise at stable condition through the shrouds 4 at both sides.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) This invention relates to a raising and lowering device that can easily raise and lower the mast of a sailing ship.

(Prior Art) The masts of sailing ships such as cruiser yachts are long and heavy, so it is necessary to use a device such as a crane to raise and lower the masts. Therefore, if it becomes necessary to lower the mast in order to pass over a bridge while sailing, it is necessary to take appropriate measures.
For this reason, there were restrictions on shipping routes.

(Purpose of the Invention) This invention was made in order to eliminate such conventional drawbacks, and provides a mast raising and lowering device that allows the mast to be easily raised and lowered without using a crane or the like. It is intended to provide the following.

(Structure of the Invention) The present invention provides a sailboat in which the lower end of the mast is rotatably supported by a mast dip on deck 1, and the mast is supported from both sides by a shroud whose one end is connected to the deck. Adjustment cables each having one end connected to the deck are connected to the middle of the shroud, and the part where the adjustment cables connect to the shroud is located at the rotation center axis -[ of the lower end of the mast. It is. Therefore, when raising and lowering the mast, the mast is supported from both sides by the shield 1, and therefore, the mast can be easily raised and lowered by simply loosening or retracting the mast stay.

(Example) In FIGS. 1 to 3, the lower end of the mast 1 is connected to the hull 10.
It is supported by the mast step 2 attached to the deck ILI:. The mast 1 is supported by a 7-or stay 14 and a back stay 13 from the front and back, and is also supported by a lower shroud 4J5 and an upper shroud 5 from the left and right. The lower ends of the lower shroud 4 and the upper shroud 5 are connected to a chain plate 40 of the deck 111. Further, a subine force ball 3 is attached to the mast 1, and a bracket 9 is detachably attached to the tip end 31 of the subine force ball 3.

A first connecting tool 6 is disposed in the middle of the lower shroud 4, and terminal fittings 41 are connected to holes at both ends of the connecting tool 6 with bolts 61, and a hole in the center of the first connecting tool 6 A second connector 60 is removably connected to.

A first adjustment cable 7 and a second adjustment cable 8 are connected to the second connector 60, and the other end t of the first adjustment cable 7 is connected to the take lever 0 on the differential 1. is connected to.

The other end of the second adjustment cable 8 is connected to a bracket 9 attached to the end 31 of the Subine force ball 3. Also, a second teakle 90 is connected to the end 31 of the spinnaker ball 3, which is connected to the deck so that the end 31 of the spinnaker ball 3 can be pulled downward. There is. Further, the halyard 30 is detachably connected to the bracket 9.

The lower end of the mast 1 is constructed as shown in FIG. That is, a hole 22 through which a bolt 20 passes is formed in the U-shaped mast step 2 fixed to the deck 11-L. Lower end 16
The mast 1 is configured to be able to rotate around the bolt 20 by passing through the through hole 17 of the bolt 20. It may also be configured to have a smaller size as shown in FIG. In other words, must-do step 2
3 A protrusion 27 is formed on the LL flat plate, and the protrusion 2
7 is formed with a hole 24 through which a bolt 20 passes.

On the other hand, a pair of grooves 15 are formed on the lower end portion 18 of the mast 1 to sandwich the protrusion 27, and the bolt 20 is inserted into the hole 19.
．． By penetrating the bolt 24, the mast 1 can rotate around the bolt 20.

Next, the operation of this device will be explained. During normal sailing, the lower shroud 4 is stretched with the first connector 6 interposed, and the second connector 60 is not connected to the first connector 6. The second connector 60, the first adjustment cable 7, the second adjustment cable 8, the take lure 0.90, and the bracket 9 are stored at appropriate positions. If it becomes necessary to raise and lower mast 1, such as when passing under a bridge, the second mast
While connecting the connecting tool 60 to the first connecting tool 6,
The take lure 0 connected to the second connector 60 via the first adjustment cable 7 is coupled to a predetermined position on the deck. Then, tension the adjustment cable 7 with the take lure 0, and as shown in FIG.
Move the connector 6 so that it is located on the axis of

As a result, the first connector 6 is pulled from three sides and fixed on the rotation center shaft 21, so that the mast 1 is
Even when the mast 1 rotates, it is always supported by the lower shroud 4 from both sides, and the mast 1 is prevented from falling in the left-right direction.

Also, a bracket 9 connected via the second adjustment cable 8 is connected to the end 31 of the Subine force ball 3, and this bracket 9 has a teakle 90 and a halyard 30 whose lower end is connected to the differential 1. Avoid combining. This prevents the spinay force ball 3 from swinging when the mast '1 is tilted, and the teakle 90 provides a forward and backward rotational force (tilting force) to the mast 1 via the spinay force pole 3.
can be granted.

In this state, remove the 7-or stay 14 and gradually loosen the teakle 90, and the mast 1 will incline and fall backward as shown by the imaginary line in FIG. At this time, the lower shroud 4, which supports the mast 1 from both sides, is tilted about the first connector 6 located at the center of rotation of the mast 1 at its lower part, so that it is prevented from falling in the left-right direction. In other words, the first
, if the second adjustment cable 7.8 is not used, the lower shroud 4 and upper shroud 5 will loosen due to the inclination of the mast 1, making it impossible to support the lower shroud 4 in the lateral direction. If the lower part is fixed at the center of rotation of the mast 1, the supporting force from the right will always be applied regardless of the inclination angle of the mast 1.

When raising the mast 1, the operation is the reverse of the above, that is, the lobe is retracted by operating the teakle 90, and the seven ore stay 14 is tensioned.

In this case as well, the mast 1 is supported from the left and right by the lower shroud 4, so it can be raised and lowered stably.

Note that when the mast 1 is close to the horizontal state, the rotational force relative to the mast 1 is applied from the cheekle 90 via the Subine force ball 3, and therefore the mast 1 is provided with the Subine force ball 3.
It is necessary to have it installed. However, if the mast 1 is relatively small, it is possible to raise it from a horizontal position to a certain level using human power. , thereby applying a rotational force to the mast 1 (1
It is also possible to give Therefore, in that case, the second adjustment cable 8 is not necessary.

Further, in the above embodiment, the position 1.ru)11! is located at the center of rotation. Although we have shown an example in which the knot 6 is provided only on the lower shroud 4,
The connection 6 may be connected to the upper shroud 5, or the connection 6 may be connected only to the upper shroud 5.
It would be better to set it up.

The structure of the connector 6.60 is not limited to the one shown in the above embodiment, but various other structures can be adopted.

(Effects of the Invention) As explained above, in this invention, the shroud that supports the mass 1- from both sides is configured to be inclined about the central axis of the rotation U at the end of the mast, and the mast is tilted. Some masts are always stably supported in the left and right directions, so the mast can be easily raised and lowered without using large equipment such as a crane.

[Brief explanation of drawings]

Fig. 1 is a side view of an embodiment of the invention, Fig. 2 is a perspective view thereof, Fig. 3 is an exploded perspective view, Fig. 4 is an exploded perspective view of the lower end of the mast, and Fig. 5 is an exploded perspective view of the mast end. A perspective view showing another example, and FIG. 6 is a partial cross-sectional view of FIG. 1. 1... mast, 2... spring depth, 3...
Spinnaker ball, 4...lower shroud, 5...
・Upper seat” loud, 6...first connector, 7...
-First adjustment cable, 11...Deck, 21...Rotation center axis, 90...Cheekle.

Claims (1)

[Claims] 1. In a sailing ship in which the lower end of the mast is rotatably supported by a mast step on the deck, and the mast is supported from both sides by shrouds that are connected at one end to the deck, there is one end in the middle of both shrouds. A mast raising and lowering system for a sailing ship, characterized in that an adjustment cable is connected to the deck, and the joint between the adjustment cable and the shroud is located on the rotation center axis of the lower end of the mast. Device.