JPS63104044U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic side view showing the internal structure of a printer incorporating the present invention, with the direction of arrow A being shown in the upper position of the printer in order to make the structure easier to understand in relation to FIG. figure. FIG. 2 is a cross-sectional view of the printer shown in FIG. 1 taken along a bent chain line BB when viewed in the opposite direction to arrow A. FIG. 3 is a schematic side view similar to FIG. 1 showing the structure of the print head and platen. FIG. 4 is a sectional view similar to FIG. 2, showing the portion shown in FIG. 3; FIG. 5 is an exploded perspective view of the thermal head support mechanism. 1...Machine frame, 3, 4...Magazine guide bearing A
, B, 3b, 4b... shaft support recess, 3c, 4c...
Guide grooves, 7, 8...head push plates A, B, 10...
...Platen magazine support assembly, 11, 12...
...Platen magazine support plates A, B, 13, 14
...Magazine guides A, B, 13a, 14a... Guide groove, 17, 18... Platen bearing, 1
9...Platen, 21...Head operating plate, 22...
...Head mounting plate A, 23...Head holding plate, 2
3b...Thermal head, 24...Head mounting plate B, 25...Connecting pin, 26...Top cover, 27...
... Spring, 28 ... Connection link, 31 ... Head pressing spring, 32, 33 ... Head support plates A, B, 3
2a, 33a...Positioning recess, 34...Printing paper, 35...Paper magazine assembly, 36
, 37...Paper cylinder support A, B, 36a, 37
a... Pivot support protrusion, 38... Release lever, 40...
Hedlock lever, 41...Headlock operating plate, 42...Top lid lock lever, 43...Top lid lock shaft, 45...Spool cylinder, 51...Cylinder body, 5
2...Adjustment screw.

Claims (1)

[Scope of utility model registration request] A magazine guide of a platen/magazine support assembly that is pivotable between a printing operation position and a printing non-operation position and that supports the platen is pivotally supported by a bearing fixed to the machine frame. A paper magazine assembly accommodating portion is provided inside the magazine support assembly, and the magazine guide is formed with a shaft support recess that receives the shaft support protrusion of the paper magazine assembly and positions it in a position aligned with the bearing axis. A guide groove is formed that extends in the radial direction and is connected to the shaft support projection and slides into engagement with the shaft support projection to guide the projection into the shaft support recess, and the bearing has a platen and a guide groove extending in the radial direction.
A guide groove is formed that aligns with the guide groove of the magazine guide when the magazine support assembly is pivoted to the print non-operation position and guides the pivot protrusion to a position aligned with the pivot recess; A paper magazine assembly can be removably mounted in the storage section at the holder, and the guide groove of the magazine guide and the guide of the bearing can be moved by pivoting the platen/magazine support assembly to the printing operation position. The paper magazine assembly is prevented from falling off from the platen/magazine support assembly by shifting the angular position with respect to the groove, thereby making it possible to correctly hold the paper magazine assembly in a position aligned with the bearing axis. A paper magazine holding device in a printer.