KR900008552Y1 - Improved speaker cabinet print ribbon driving apparatus - Google Patents

Abstract

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Description

Ribbon Drive of Thermal Typewriter

1 is a plan view of the assembled state of the present invention.

2 is a cross-sectional view taken along the line F-F in FIG.

3 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for main parts of the drawings

2: rail shaft 3: head

4: guide head pressure welding 5: head pressure welding

6: Carriage body 7, 7 ', 7 ": Pinion gear

8, 8 ': guide groove 9, 9': guide jaw

10: guide gear 11: wire

12: guide 13: compression spring

14 pulley 15 rack gear

The present invention relates to a ribbon type driving device of a thermal typewriter, which is able to obtain a precise factor without stressing the pressure point angle and the pressure force in a thermal typewriter. .

In the conventional thermal typewriter, two pinion gears having a fixed distance between shafts are inserted and installed in a carriage, one of which is fixed with a spool (SPOOL) for winding a ribbon, and the other has a head with a plastic head. Since it was configured to engage with the rack gear installed on the lower part of the platen when pressed against the ten, the ribbon movement was not constant due to the degree of engagement between the rack gear and the pinion gear and the time difference or the dust or foreign matter generated from the paper. In addition, there was a lot of difficulties in the construction, and when the entire carriage body was driven at the same angle when forming the pressing angle, the ribbon feed gear was engaged with the rack gear, which required excessive force in the pressing force, causing an error. There was this.

The present invention has been devised to solve such a conventional drawback and the construction and operation effects by the accompanying drawings are as follows.

Ordinary platen (1) is mounted and the rail shaft (2) is fixed to the front part, the head (3) is attached to the rail shaft (2) and the guide head pressure welding (4) is attached to the front end The head presser 5 and the carriage body 6 are inserted and fixed, and the pinion gears 7, 7 ′, 7 ″ are respectively installed on the carriage body 6, but the pinion gear 7 is a carriage body ( The guide jaw 9, 9 'protruding from the upper and lower surfaces into the guide grooves 8 and 8' formed on the upper and lower surfaces of 6) is inserted into and fixed to the inserted guide gear 10 and The wire 11 connected to the center part passes through the compression spring 13 between the guide gear 10 and the guide piece 12 through the groove of the through guide piece 12 and passes through the pulley 14 to the head pressure receiving member 5. ), And the pinion gear (7 ") is configured to be rotated in engagement with the rack gear (15). Reference numerals 16, 16 'are ribbon spools, 17 is an axis, 18 is Wending Spool And, 19 is a ribbon.

Referring to the effect of the present invention configured as described above are as follows.

As described above, the guide head presser 4 as shown in FIG. 3 corresponds to a printing method in which the printing thermal head is printed while the carriage is transported in a state in which the printing thermal head is in close contact with the polarene. At the same time as the centering angle (2) and rotates in the G direction, the head pressure contact (5) connected to it is also rotated in the G 'direction, wherein the head (3) elastically attached to the head pressure reception (5) As shown in FIG. 3, the lower end of the head pressure receiving table 5 is rotated by the Q angle in the H direction to be pressed against the platen 1 and the head 3 is pressed against the platen 1. As shown in FIG. 2, the position of the wire 11, which is enclosed in, moves from L to L 'parallel to the outer diameter of the pulley 14, wherein the compression spring compressed by the wire 11 is moved. (13) is guided while the guide piece 12 is compressed to the collar As the gear 10 is pushed in the direction B ′ as shown in FIG. 1, the guide jaws 9, 9 ′ of the guide gear 10 are driven through the guide grooves 8, 8 ′. Direction pinion gear (7) moved in the direction and fixed to the guide gear (10) is also pushed in the direction B 'and connected to the pinion gear (7') (7 "), the pinion gear (7) (7 ') (7" Pinion gear 7 ", which is always engaged with the rack gear 15, is rotated in the C direction by the right-hand movement of the carriage machine, and the pinion which is engaged with the pinion gear 7". The gear 7 rotates in the E direction and the pinion gear 7 'engaged with the pinion gear 7 rotates in the D direction. As shown in FIGS. 1 and 2, the pinion gear 7' The wendling spool 18 fixed to the upper side 17 of the crankshaft also rotates in the D direction, and the winding ribbon spool 16 inserted therein also rotates in the D direction and the ribbon 19 It is to be moved in the right direction, and the ribbon is moved smoothly by the above-mentioned driving, and printing is performed, and once printing is completed, the pinion gear 7 is released in the reverse order when printing as described above. As shown in FIG. 3, the guide head presser 4 driven in the G 'direction rotates in the G direction, and the head 3 that is pressed in the platen 1 also rotates in the H direction. .

Here, the driving of the pressure welding table 4 is driven by a command output from the typewriter by a separate device.

In addition, as shown in FIG. 2, the wire 11 at the point L 'is returned to the point L and at the same time, the compression spring 13, which is tensioned, is compressed again by the positional change of the wire 11, In addition, the guide gear 10 and the pinion gear 7 are transported in the B direction as shown in FIG. 1 to release the pinion gears 7 'and 7 "which are connected to each other, and at the same time, the pinion gear 7 ') Stops the rotation and transfer of the ribbon 19 is stopped, and the carriage control of such carriage is controlled by a command according to the circuit configuration of the typewriter, and when the carriage machine is moved to the right, the head 3 is driven. Since only the pinion gear 7 "is idled in the C direction by the rack gear 15, the present invention not only obtains beautiful parameters by accurate and fine feed force but also prevents unnecessary ribbon consumption. It is.

Claims (1)

The head presser 5 to which the head 3 and the guide head presser 4 are attached, and the carriage body 6 are inserted into and fixed to the rail shaft 2 mounted to the front part, and the carriage body 6 Guide pins (7) (7 ') (7 ") are installed, but the pinion gear (7) is guide jaws (9) (9') inserted into guide grooves (8) (8 ') formed in the carriage body (6). The wire 11 fixed in the guide gear 10 formed therein and connected to the central portion of the guide gear 10 passes through the compression spring 13 and simultaneously passes through the groove of the guide piece 12. Gina is connected to the head pressure receiving (5) and the pinion gear (7 ') is a ribbon drive device of the thermal typewriter, characterized in that mounted to rotate in engagement with the rack gear (15).