| 摘要 |
A fastener installation tool for installing fasteners of the type in which a part of the fastener is broken off during the installation process, which fastener installation tool is provided with collection means for collecting broken-off fastener parts duri ng operation of the tool, the collection means being removably connected to the tool; whi ch tool is provided with resiliently urged shutter-means which, when the collection mea ns is connected to the tool, is held open against the resilient urging means to allow the passage of broken-off fastener parts from the tool into the collection means , and which, when the collection means is disconnected from the tool, closes under the action of the resilient urging means to prevent ejection of broken-off fastener parts from the tool; in which, when the collection means is connected to the tool, the shutter is held open by the action of air pressure, disconnection of the collection means removing the air pressure and allowing the shutter to close under the action of the resilient urging means. |
