Patent ID: 8157531

Claim:
A closing assembly for closing a remaining intermediate space between a first blade and a last blade that are inserted in a circumferential groove of turbomachine blade ring, comprising: a first part having a projection; a second part having a projection opposite the first part projection wherein the first and second parts are constructed and arranged to each be hooked by the opposite projections that form an undercut on the circumferential groove; and a rotatably mounted key shaped securing element arranged between the first and second parts, the securing element having a key head and a plate like key bit, wherein the securing element secures the first and second parts against falling out of the circumferential groove and the securing element is rotates about a longitudinal axis of the securing element, the securing element is positionable between a first position and a second position by rotation only of the securing element, such that in the first position, for fitting the assembly on the blade ring, the first and second parts are inserted at the same time into the circumferential groove by pivoting with respect to one another between the opposite projections on the circumferential groove and are then be spread apart from one another, and in the second position, for securing the first and second parts, against pivoting with respect to one another in their installed position, where the key bit is placed on at least one side surface of one of the spread parts.