| 摘要 |
An extension arm (1) is provided, especially a pivotal and adjustable-tilt extension arm for a supporting system, for the suspended fixing of preferably medial devices (2-5) through a joining element (6-9) fastened to a fixing piece (17) of the extension arm (1). The extension arm includes a securing element (34), which is guided through an opening (35) of the fixing piece (17) and secures the fastening of the joining element (6-9) to the fixing piece (17) by engaging inside a groove (36) of the joining element (6-9). The extension arm also includes a securing bush (26), which at least partially surrounds the fixing piece (17) and the joining element (6-9) and which secures the securing element (34) through the use of a spring element (40). |
