Guest editorial: Introduction to the special issue on PerCom 2005

A utensil handle including a handle member of plastic having a front opening recess for receiving a bolt adapted to be secured on the utensil, whereby the cross section of the recess in the handle member and the one of the bolt conform to one another and both have a polygonal cross section and the bolt is provided with a notch which has a sloped surface and the bolt and the handle member are held together frictionally with a spring which is held on said handle member and acts onto the sloped surface of the bolt. In order that the utensil handle can be manufactured inexpensively and can be mounted easily, a simply formed spring is provided which acts onto the bolt through large lever arms, brings about a relatively large tolerance balance, permits an all around guide for the bolt in the handle and permits the mounting of the handle to the utensil. The spring has a back which extends in insertion direction in the recess. The spring is pivotally supported about its bearing points on the handle member. The spring has in insertion direction support points for the bolt which are spaced from one another. A tensioning of the spring occurs only when both support points rest on the bolt. The spring is thereby guided perpendicularly with respect to the insertion direction of the bolt.