PROTECTIVE DEVICE FOR OPENING-TYPE STRUCTURAL MEMBER Russian patent published in 2004 - IPC

FIELD: space engineering; opening-type structural members of solar batteries and antennae.

SUBSTANCE: proposed protective device has body which is engageable with part of structural member by means of transfer part. Device is provided with drum arranged in body and fitted with hub and jaws; it is mounted for rotation about shaft which is coaxial relative to transfer part and kinematically linked with it at one end. Other end of device is connected with wheel engageable with slots of disk by means of projections made on its outer surface in parallel with shaft axis; disk is narrower than wheel. Disks are mounted for displacement on projections of said wheel. End surfaces of wheel are engageable with friction inserts smoothly distributed over circumference of cover secured on drum jaw and in plungers. Plungers provided with compression springs are mounted in through holes of hub in parallel with drum axis; drum is provided with blocks smoothly distributed inside jaws for rotation in them. Each block has insert for friction engagement with inner surface of body. Pin projecting beyond drum jaw is movable relative to axis of rotation of block in radial slot of synchronizer which is made in form of plate located on free outer end surface of drum jaw for rotation relative to drum axis. Provision is made for adjustment of pressing the plunger inserts to end surface of disk. Radial slots of synchronizer are made at similar angular displacement relative to one another.

EFFECT: enhanced reliability; extended operational capabilities.

4 dwg