| 摘要 |
FIELD: aeronautics equipment. ^ SUBSTANCE: proposed device has case wherefrom cylindrical locking neck 1 is mainly protruding. This locking neck 1 has fine thread 13 on its outer periphery to receive nut and carries radially protruding thrust flange 6 at certain distance from its end on case side. This flange functions to hold device in locked position where locking neck 1 runs through fixing hole or fixing drilling 14 of wall member or panel 15 and tightened therein by means of nut turned onto fine thread 13 to thrust flange 6. Locking neck 1 is, essentially, separate built integral plastic part. It has threadless, mainly cylindrical, shank section 17 between its threaded end and thrust flange 6 coaxial to locking neck 1 whose outer diameter 18 equals inner diameter of fine thread 13, and its end facing thrust flange turns through quadrant arc describing fillet 19 into thrust flange 6. Radius of this fillet 19 coincides with difference between rated radius of fine thread 13 and half the outer diameter 18 of shank threadless section. ^ EFFECT: enhanced reliability of device locking in position. ^ 6 cl, 9 dwg |
