| 摘要 |
An apparatus (1) for pivotal fastening of an active surface, in particular a spoiler (3) on a wind tunnel model of an aircraft, comprising a bearing block (2) and a strip (22) accommodated pivotally thereon on a shaft (21), wherein the strip (22) is connected to the active surface, characterized in that the strip (22) is operatively connected to a clamping block (10) and the clamping block (10) can be connected to the bearing block (2) for locking the active surface in an arbitrary angular position (28, 29) of the spoiler (3) between -10° and +45°. Since the operative connection is preferably formed with a ring gear segment (23) disposed underneath the strip (22), which is continuously intermeshed with a rack (19) formed on the clamping block (10), a highly precise adjustment of the angular position (28, 29) of the spoiler (3) is possible. An angular position (28, 29), once set, can be locked very securely against uncontrolled adjustments by fixing the clamping block (10) in the bearing block (2) by means of at least two fastening means, in particular with screws. The lack of sensitivity to undesirable adjustment movements of the spoiler (3) is obtained in particular from the self-inhibiting configuration of the toothing. As a result of the comprehensive adjustability of the apparatus (1), a comprehensive storage of aerodynamic active surfaces with individual adjustment angles is superfluous and at the same time, the retrofitting expenditure is reduced.
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