| 摘要 |
PROBLEM TO BE SOLVED: To provide a log member coupling device which makes effective use of log members such as thinnings different in diameter and shape, binds the log members together at any crossing angles mechanically firmly without forming any coupling holes or slots in the log members, and exerts a function of a forest conservation structure over a long period of time. SOLUTION: The log member coupling device functions to couple at least two log members (A, B) to each other, and it is formed of (a) angle setting fittings (11, 12) arranged between the log members (A, B), for setting a crossing angle (θ) between the log members (A, B), and (b) support fittings (21, 22) connected to the respective angle setting fittings (11, 12), for gripping the log members (A, B) depending on the diameter and shape of the log members (A, B). COPYRIGHT: (C)2005,JPO&NCIPI
|
