JPS5848956Y2 - Pivot type center board attachment/detachment device for yachts - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pivot type centerboard attachment/detachment device for a yacht.

Usually, small yachts are equipped with a centerboard to ensure safety by preventing the hull from drifting sideways.

However, most yachts today have a double bottom structure, so even if they are pivot type, the centerboard cannot be freely removed.

For this reason, during use, it was extremely difficult to handle when transporting it by mounting it on a cart or the like, or when pulling it up on land and storing it.

In addition, even if the centerboard is a pivot type, simply hooking the centerboard to the bolts will not work, and if the centerboard is made of wood or resin with a low specific gravity, the centerboard may become damaged due to buoyancy or water resistance during sailing. In view of the above-mentioned drawbacks, the present invention aims to provide a pivot type centerboard which is removable and securely installed.

Hereinafter, embodiments of the present invention will be explained in detail with reference to FIGS. 1 to 3.

Reference numeral 1 designates an opening in the center of the bottom of the ship, and a bolt 2 is installed horizontally at one end of the opening, and a detachable centerboard 3 is attached to the bolt 2.

A board bracket 4, which is a pivot portion made of two synthetic resin plates, is fixed to the shoulder portion of the center board 3.

A key-shaped guide groove 5 for guiding the bolt 2 is provided at one end of the board bracket 4, and an entrance for installing and removing the bolt 2 is formed in this guide groove 5, and a locking surface 6 for the bolt 2 is formed in the inner part of the entrance. are doing.

Furthermore, this boat bracket 4 is formed with a cylindrical hole 7 that communicates with the guide groove 5, and a bracket pin 8 is inserted into the hole through a spring 9 to close the locking surface 6 of the guide groove 5. Arranged so that it can be closed for swords.

The wire rope 1 is attached to the rear end of the bracket pin 8.
0 and insert one end into the hole made in the shoulder of the center board 3.

Since the present invention has such a structure, the center board 3
When the board bracket 40 is attached to the opening 1 in the bottom of the boat, the bolt 2 is fitted into the locking surface 6 at the inner part of the board bracket 40 in the guide groove 5 against the spring 9 of the bracket pin 8.

After this bolt 2 is fitted into the locking surface 6, the bracket pin 8 is pushed out again by the spring 9 and the guide groove is closed.

Next, when removing the center board 3, the wire rope 10 tied to the rear end of the bracket pin 8 is pulled, the bracket pin 8 that has closed the guide groove 5 is pulled up, and the port 2 is released from the locking surface 6.

As described above, according to the present invention, in order to close the opening of the guide groove with the bracket pin provided in the guide groove when the centerboard is installed, a wooden or resin-made concrete structure that swings due to buoyancy or water resistance is used. This prevents the lightweight centerboard from coming off the support shaft, maintains a secure attachment/detachment state, and maintains the function of the centerboard.

Usually, one end of a wire rope is connected to the rear end of the bracket pin, and this wire rope is inserted into a hole drilled in the upper shoulder of the centerboard, so the wire rope acts as a handle to pull the bracket pin back. This allows the guide groove to be opened, which has the advantage of making it easier to attach and detach the centerboard from the support shaft.

[Brief explanation of the drawing]

Fig. 1 is a side view of a yacht equipped with a pivot type centerboard showing an embodiment of the present invention, Fig. 2 is a cross-sectional view showing the main part of Fig. 1 and showing the state in which the centerboard is installed. FIG. 3 is a cross-sectional view showing a detached state of the centerboard. 1... Opening, 2... Support shaft (bolt), 3... Center board, 4... Pivotal part (board bracket),
5... Guide groove, 8... Bracket pin, 9... Spring, 10... Wire rope.

Claims (1)

[Scope of utility model registration request] A support shaft is installed horizontally at the seven ends of an opening provided in the center of the bottom of the ship, and a guide groove is provided for guiding the support shaft to a pivot portion of a centerboard that is rotatably supported on the support shaft, The center board is made of wood or synthetic resin, and the guide groove is provided with a bracket pin that can move forward and backward to open and close the opening of the guide groove, and is always pressed in the closing direction by a spring, so that the rear end of the bracket pin A pivot-type centerboard attachment/detachment device for a yacht, in which one end of a wire rope that serves as a handle for retracting a bracket pin is connected to the bracket pin, and the wire rope is inserted into a hole drilled in the upper shoulder of the centerboard.