| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem that a conventional boat made of FRP weighted from 40 to 70 kg, easily carried and used as a portable boat is sometimes damaged on a bottom or springs a leak in the bottom by actions such as unloading the boat from a car after reaching a beach and towing the boat to float the boat on a sea, unloading the boat from the car and pulling a bow thereof to carry the boat to the sea and float the boat on the sea, or towing the boat from the sea to move the boat to the beach after the usage. SOLUTION: In this bottom structure for the boat, an aluminum ball as a hard member is provided on a part of a bottom 100 of the boat 1 mainly consisted by the FRP. Thus, by forming an abrasion resistant part on a part of the bottom of the boat, this bottom structure for the boat is useful for preventing the bottom of the boat from being worn out, for improving the durability, and for preventing secondary pollution and damage of appearance by a scraped boat.
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