| 摘要 |
PROBLEM TO BE SOLVED: To provide a barrier joint group assembly capable of building a barrier line even if the ground placing a movable road-barrier is irregular in some degree and preventing the barrier line from unauthorized opening by locking the joint after being joined. SOLUTION: This joint aggregate for the movable road-barrier is fitted with each standing member (1, 2) of an adjacent barrier; and includes a pair of joints (3, 4) equipped with a jaw which compensates incompleteness relative to coplanarity and/or parallelism of the standing member caused by the shape of the ground where the barrier is placed by an elastic joint (5). The joint can be locked with a key device (16) after being joined, to prevent unauthorized opening. COPYRIGHT: (C)2004,JPO |
