| 摘要 |
<p>At least three beams, 2, 4, 6, are connected in at least two planes by means of a cruciform member 8. Rivets 30 are used to locate the joint while a bonding agent, which may be a structural adhesive or cold solder, sets. Cruciform arms 10 may be at ninety degree intervals; at least one arm may be deformed into, or extruded at, an alternative angle. The beams may be of aluminium; other metal; plastic, or composite material. More than one cruciform may be used in one joint (Figures 2, 3); arms 10 may be abbreviated to reduce the joint's bulk and mass. Plates 12, 14 may be used in opposition to a cruciform to strengthen and balance joints. The bonded joint may be used in the frame of a vehicle, particularly an amphibious vehicle. The cruciform member provides broad planar surfaces for a strong bonded joint, which is unlikely to peel. <IMAGE></p> |
