VERKTOEY FOR ROTASJONSMESSIG INNDRIVING AV EN FESTEINNRETNING I ET ARBEIDSSTYKKE

摘要

Case 3805DRIVE TOOL WITH SPRING-BIASED TORQUEA B S T R A C TA tool having a torque-limiting recess of variable axialdimension biased to its longest position by a rigid spring.Under normal drive conditions, the rigid spring will maintainthe torque-limiting recess at its maximum length position. Inthe event the operator wishes to apply additional torque to thefastener head, he merely leans on the tool applying an extraor-dinary axial load which collapses the rigid spring and enablesthe operator to reengage the tool with the fastener head.