Machine and ribbon spool for thermal transfer printing
OwnerGiovanni Tabassoinventor
Life of this patent
Estimating the term…
Abstract
The machine (M) comprises at least one rotating spindle (1, 2; 1′, 2′), and at least one ribbon spool (30) mounted on the said spindle (1, 2; 1′, 2′) and having an axial passage (31) in which a transversely projecting locating formation (33a) is defined, and at least one transversely re-entrant connecting formation (35, 36). The or each spindle (1, 2; 1′, 2′) comprises an axial portion (15) on which a ribbon spool (30) is designed to be mounted, and which has a stop shoulder (25) against which the locating formation (33a) of the ribbon spool (30), and at least one transversely projecting element (18a, 19a) able to engage in the connecting formation (35, 36) of the ribbon spool (30), are designed to abut in such a way that the spindle and the spool (30) rotate together.
Claims15
Thermal transfer printing machine (M) comprising
- at least one rotating spindle (1, 2;
- 1′, 2′), and
- at least one ribbon spool (30) mounted on the said spindle (1, 2;
- 1′, 2′) and having an axial passage (31) in which a transversely projecting locating formation (33a) is de-fined, and at least one transversely re-entrant connecting formation (35, 36);
- the spindle (1, 2;
- 1′, 2′) comprising
- an axial portion (15) on which a ribbon spool (30) is designed to be mounted;
- the said axial portion (15) of the spindle having a stop shoulder (25) against which the locating formation (33a) of the ribbon spool (30) is designed to abut;
- and
- at least one transversely projecting element (18a, 19a) able to engage in the connecting formation (35, 36) of the ribbon spool (30) in such a way that the spindle and the spool (30) rotate together;
- the arrangement of the locating (33a) and connecting (35, 36) formations of the spool (30), and of the stop shoulder (25) and of the projecting element (18a, 19a) of the spindle being such that the ribbon spool (30) is connectable to the spindle simply by inserting the spindle through a pre-determined end (31a) of the axial passage (31) of the ribbon spool (30).
Ribbon spool (30) for connection to a spindle (1, 2;
- 1′, 2′) of a thermal transfer printing machine (M), comprising
- an essentially cylindrical tubular supporting element (32, 33), through which an internal axial passage (31) runs to accommodate the spindle;
- a variation of cross section being produced in an axially intermediate portion of the said passage (31) to define a transverse locating formation (33a), against which a reference and stop shoulder (25) on the spindle is designed to abut;
- at least one connecting formation (35, 36) being produced in an axial portion (31b) of the said passage (31) and able to connect prismatically with a portion (18a, 19a) of the spindle, in such a way that they rotate together;
- the connecting formation (35, 36) and the locating formation (33a) being produced in such a way that the said sup-porting element (32, 33) is connectable to the spindle purely by inserting the spindle through a predetermined end (31a) of the said axial passage (31).
Dependencies are inferred from the claim text.