Sectional boat structures

Claim 2

A boat structure having longitudinally extending body means which includes a first body section having a first mating end portion at its rear end, a second body section having a second mating end portion at its front end, said first and second body section having at the respective mating end portions abutting peripheral edge means which are in abutting engagement with each other when the body means is assembled, said abutting peripheral edge means on the first and second body sections having mutually engagable groove means and projection means, first connecting member means in the first body section and extending substantially radially inwardly from the peripheral edge means thereof, second connecting member means in the second body section and extending substantially radially inwardly from the peripheral edge means thereof, said first and second connecting member means being axially offset from the abutting peripheral edge means in the first and second mating end portions, respectively, so that the first and second connecting member means are spaced from each other when the abutting edge means of the first and second mating end portions are put into abutting engagement with each other, and means for connecting said connecting member means together.

Claim 3

A boat structure in accordance with claim 1 in which said connecting means is a bolt secured to one of said first and second connecting member means, and a nut for engagement with the bolt.

Claim 4

A boat structure in accordance with claim 1 in which one of the first and second connecting member means is inclined axially inwardly from the peripheral edge means of the associated body section, and the other connecting member means axially outwardly, the first and second connecting member means being connected by a single connecting bolt and a cooperating nut at substantially the centers of the connecting member means.

Claim 5

A boat structure in accordance with claim 3 in which each of said connecting member means is of concave longitudinal sectional configuration.

Claim 6

A boat structure in accordance with claim 3 in which the axial offset of the center of each connecting member means from the periphery thereof is between 0.3 and 0.6 times the diametrical dimension thereof.

Claim 7

A boat structure in accordance with claim 1 in which each of said first and second connecting member means comprises a solid partition wall whereby water is prevented from entering the inside of the associated body section.

Claim 8

A boat structure having longitudinally extending body means which includes a first body section having a first mating end portion at its rear end, a second body section having a second mating end portion at its front end, said first and second body sections having at the respective mating end portions abutting peripheral edge means which are in abutting engagement with each other when the body means is assembled, said abutting peripheral edge means on the first and second body sections being of substantially U-shaped configuration, relief grooves formed above the upper edges to define longitudinally extending upper flanges above the relief grooves, first connecting member means in the first body section and extending substantially radially inwardly from the peripheral edge means thereof, second connecting member means in the second body section and extending substantially radially inwardly from the peripheral edge means thereof, said first and second connecting member means being axially offset from the abutting peripheral edge means in the first and second mating end portions, respectively, so that the first and second connecting member means are spaced from each other when the abutting edge means of the first and second mating end portions are put into abutting engagement with each other, and means for connecting said connecting member means together.

Claim 9

A boat structure having longitudinally extending body means which includes a first body section having a first mating end portion at its rear end, a second body section having a second mating end portion at its front end, said first and second body sections having at the respective mating end portions abutting peripheral edge means which are in abutting engagement with each other when the body means is assembled, said abutting peripheral edge means on the first and second body sections being of substantially U-shaped configuration, relief grooves formed above the upper edges to define longitudinally extending upper flanges above the relief grooves, first connecting member means in the first body section and extending substantially radially inwardly from the peripheral edge means thereof, second connecting member means in the second body section and extending substantially radially inwardly from the peripheral edge means thereof, said first and second connecting member means being axially offset from the abutting peripheral edge means in the first and second mating end portions, respectively, so that the first and second connecting member means are spaced from each other when the abutting edge means of the first and second mating end portions are put into abutting engagement with each other, and means for connecting said connecting member means together.

Claim 10

A boat structure in accordance with claim 7 in which said connecting means is a bolt secured to one of said first and second connecting member means, and a nut for engagement with the bolt.

Claim 11

A boat structure in accordance with claim 7 in which said abutting peripheral edge means of the first and second body sections are provided with mutually engagable groove means and projection means.

Claim 12

A boat structure in accordance with claim 7 in which one of the first and second connecting member means is inclined axially inwardly from the peripheral edge means of the associated body section, and the other connecting member means axially outwardly, the first and second connecting member means being connected by a single connecting bolt and a co-operating nut at substantially the centers of the connecting member means.

Claim 13

A boat structure in accordance with claim 10 in which each of said connecting member means is of concave longitudinal sectional configuration.

Claim 14

A boat structure in accordance with claim 10 in which the axial offset of the center of each connecting member means from the periphery thereof is between 0.3 and 0.6 times the diametrical dimension thereof.

Claim 15

A boat structure in accordance with claim 7 in which each of said first and second connecting member means comprises a solid partition wall whereby water is prevented from entering the inside of the associated body section.