(57) Serial printer frame constituted by a basement (1C) and by two side plates (1A,1B)
identical each other.
The side plates are provided with dihedral shaped housings (7A,7B,8A,8B) for the ends
of the platen (3) and at least a carriage guiding bar and provide fortheir precise
positioning and parallelism.
The platen and guiding bar ends are restrained in the dihedrals by means of clamping
riders (11A,11B,21A,21B) which perform on them a force directed towards the dihedral
apex.
The riders are fixed to the side plates by means of tapered head screws (13A,14A,13B,14B,24A,24B)
perpendicular to the side plates.
The screws perform a trasversal pull on the riders owing to the tapered head action
on a corresponding tapered housing of the riders suitably arranged.
|
|
