| 摘要 |
The invention relates to a device for righting a boat or other wafer vessel following a capsize. The device (50) comprises an inflatable body (51) which can be stowed in a collapsed state when un-inflated. A source of compressed gas (78, 80) is provided to inflate the body following a capsize. The inflatable body has a flexible skin which forms at least first and second inflatable chambers (91, 95), A valve arrangement is provided which causes the chambers to be inflated in a predetermined sequence. Specifically, the first chamber is inflated before the second. The first chamber is provided with means for securely mounting it upon the vessel. The second chamber is coupled to the first, to be supported by the first chamber when the device is deployed. Due to its buoyancy when submerged,, the second chamber Is able to apply a righting moment to the vessel. The first chamber serves to transmit this moment to the vessel. The staged inflation of the body alleviates its natural tendency to "pop up" to the surface before it is adequately inflated. |
