JPS6039596B2 - sailboat mast support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a mast support device in a sailboat.

As is well known, the lower end of the mast of a sailboat is fixed to the hull, but conventional mast support means fix a support member of a separate structure to the hull, and this support member supports the lower part of the mast. It had become.

However, such a structure not only requires a support member as a special separate item, but also requires means such as screws to fix this support member to the ship's hull, for example, the deck, which requires assembly time. Moreover, since a large load is applied to this support member from the mast, there is a concern about the installation strength if the deck has low mechanical strength. This made the structure complicated. The object of the present invention is to provide a mast support device for a sailboat that does not require special support members or reinforcing means for attachment, and can simply support the mast.

An embodiment of this invention will be described below.
The explanation will be based on a drawing of a sailboat made by R.P.

1 in the figure is the hull that constitutes the hull section, and is
It is integrally formed.

The upper surface of the hull 1 is covered with a deck member 2 made of F.R.P. The deck section 2 integrally includes a bow deck 3, side decks 4, 4, and these bow decks 3,
It is surrounded by side decks 4, 4 and has an integral cockpit 5. A center case 6 is formed protrudingly within the cockpit 5, and a center board 7 is inserted into the center case 6 in a removable and removable manner. The inserted center board 7 is projected into the water from the bottom surface of the hull 1. Therefore, at the boundary between the cockpit 5 and the bow deck 3 of the deck member 2, a rising wall 8 is integrally formed to separate them and rise from the bottom surface of the cockpit 5. This rising wall 8 is provided so that its upper part is inclined toward the rear of the hull and covers the inside of the cockpit 5. In addition, the front end surface of the center case 6 and the stern rising wall 5a facing the rising wall 8 inclined in this manner are substantially parallel to this rising wall 8, and when integrally molded by F.R.P. , the mold can be smoothly removed diagonally backward (towards the stern). However, such a rising wall 8 is integrally formed with a support groove 9 located approximately on the center line of the hull and extending vertically. The support groove 9 is open on the rear side of the hull and extends substantially vertically. Therefore, since the rising wall 8 is inclined, there is substantially no support groove 9 at the bottom of the cockpit 5. Such a support groove 9
A mast 10 is vertically supported, and the mast 10 is made of a light metal such as aluminum or a light alloy. The lower end of the mast 10 is swingably fixed via a pin 12 to a mounting portion, for example, a mounting bracket 11 fixed to the bottom surface of the cockpit 5 directly below the support groove 9 . In this case, a plurality of pin insertion holes 13 are formed in the mounting bracket 11 along the longitudinal direction of the hull, and these pin insertion holes 13.
The mounting position of the mast 10 can be changed by selectively inserting the pin 12 into the... The mast 10 with its lower end fixed in this manner is located within the support groove 9. Since the horizontal dimension of the mast 10 substantially matches the dimension in the same direction of the support groove 9, the lower part of the mast 10 is restrained in the horizontal direction by the support groove 9. Also,
The front side of the mast 10 and the back side of the support tube 9, that is, the hull 1
The required number of backing plates 1 are placed between the front part and the abutment surface.
4... are selectively inserted. As shown in FIG. 5, the backing plates 14 have protrusions 15, 15 on the left and right sides of the upper end, and the center portion thereof forms an insertion portion 16 projecting downward. Then, when the insertion part 16 is inserted into the support groove 9 from above the bow deck 3, the locking protrusions 15, 1
5 is adapted to be hooked onto the upper surface of the bow deck 3 and engaged. Therefore, the lower end of the mast 10 is attached to the mounting bracket 11.
After selecting and installing the abutment plates 14 into the pin insertion holes 13 of When inserted, the upright posture of the mast 10 is selected, and when the mast 10 is fixed to the hull with a rope (not shown), the degree of bending of the mast 10 can be selected as necessary. . In the figure, 17 shows the boom attached to the Masto riverboat, 18 shows the main sail, 19 shows the jib sail, 20 shows the rudder, 21 shows the tailor, and 22 shows the paddle. Further, 23 indicates an adhesive for fixing the deck member 2 to the hull 1. The operation of this embodiment will be explained.

To erect the mast 10, the lower end of the mast 10 is supported by the mounting bracket 11 via the pin 12, and the mast 10 is erected. At this time, a required number of backing plates 14 are interposed between the front surface of the mast 10 and the abutment surface of the support groove 9. Then, the bending of the mast 10 is adjusted by tensioning the upper part of the mast 10, the boom 17, and each of the lobes of the main sail 18 and jib sail 19. The mast 10 that has been erected in this way has its lower end attached to the mounting bracket 11 with the pin 12.
The upper part of the bracket is supported by the support groove 9, and the upper part is supported by tensioning each rope, so that the wind force applied to each sail 18, 19 can be reliably supported. In particular, since the lower part of the mast lo is attached to the support groove 9, the forces applied to the mast 10 in the lateral and forward directions are supported by the deck 2 via the support groove 9. At this time, since the support groove 9 is formed integrally with the rising wall 8 at the boundary between the cockpit 5 and the deck deck 3, no special support section is required, and no fastened parts such as screws are required. In addition, since the rising wall 8 is inclined toward the rear, it acts like a reinforcing rib against external forces applied to the hull along the left and right directions of the hull, and is a secondary reinforcement that does not require any special reinforcing material. There are also some effects. Furthermore, since the rising wall 8 is inclined rearward, the inside of the cockpit 5 directly below the support groove 9 becomes a substantially triangular space when viewed from the side. A space is formed by overhanging the mast 10, so that the lower end of the mast 10 can be attached to the mounting bracket 11.
The work of fixing the pin 12 or changing and adjusting the insertion position of the pin 12 can be performed smoothly. Of course, as mentioned above, by inserting the backing plate 14 between the front surface of the mast 10 and the abutting surface of the support groove 9, the forward force applied to the mast 10' can be absorbed by the backing plate 14. By inserting the backing plate 14, it is possible to prevent damage caused by wear on the abutment surface of the support groove 9, and if the number of backing plates 14 is selected, Since the bending of the mast 10 can be adjusted, the tension of the sails 18 and 19 can be selected depending on the sailing conditions. In addition, in the above embodiment, the rising wall 8 is inclined rearward as the mast support part, and the rising wall 8 is
Although the support groove 9 is formed in the support groove 9, the upright wall 8 is not limited to being inclined.

Further, in the case of the deck member 2 in which the bow deck 3 and cockpit 5 are integrally formed, the rising wall 8 can be molded integrally with the bow deck 3 and the cockpit 5, but in the case of a deck member 2 in which the bow deck 3 and the cockpit 5 are formed separately, the rising wall 8 can be formed integrally with the bow deck 3 and the cockpit 5. It is only necessary to integrally form a rising wall on either side with the cockpit 5.

In the present invention described in detail above, a mast support groove extending in the vertical direction is integrally provided in the rising wall provided between the cockpit and the bow deck, and a mounting portion for attaching the lower end of the mast is provided below the mast support groove. Therefore, the mast attached to this attachment part is held between both sides of the mast support groove, and the lower part of the mast is supported by the hull by the attachment part and the support groove.

Since such a mast support groove is provided integrally with the rising wall, there is no need for a special support section, and therefore parts such as screws for attaching the support section to the hull and reinforcing members for attachment are no longer required. This has the advantage that the mast can be supported with a simple structure.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view of a sailboat with the mast and sail omitted, Fig. 2 is a cross-sectional view taken along line 0-0 in Fig. 1, and Fig. 3 is a cross-sectional view of the FIG. 4 is a sectional view thereof, and FIG. 5 is a perspective view of the backing plate. 1...Hull, 2...Deck club, 3...Baudecki, 4, 4...Side deck, 5...Cockpit, 6..."Center case, 8...Rising wall , 9
...Support groove (support part), 10 ...Mast, 11 ...Mounting bracket, 12 ...Pin, 14 ...Passing plate . Figure 2 Figure 3 Figure 5 Figure 1 Figure 4

Claims (1)

[Claims] 1. A rising wall is formed between the top and bottom to separate them, and a mast support groove that extends approximately vertically and holds the mast is formed integrally with this wall, and below this mast support groove. A mast support device for a cell boat, characterized in that it is provided with an attachment part for attaching the lower end of the mast.