Tensioner for imposing voltage to circulating cam chain for driving camshafts in engine, has locking element release mechanism for releasing engagement of locking teeth of locking element, where locking element has tool engagement area

摘要

The tensioner (100) has a locking element (150) and a locking element release mechanism for releasing an engagement of the locking teeth of the locking element in the gear rack teeth of a plunger piston (120). A tool engagement area is provided at the plunger piston-sided front end area of the locking element, to be in contact and engagement with an edge area of a pin-shaped tool. A pin insertion hole is provided in a housing (110) to introduce the pin-shaped tool in the direction of the tool engagement area.