JPH0620970Y2 - Recorder pen device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a pen device of a recorder, and more particularly to a pen arm support structure.

[Conventional technology]

Conventionally, as a pen device of this type, for example, Japanese Patent Publication Sho 63
-4644, Japanese Utility Model 58-13699, Japanese Utility Model 58-42618
As disclosed in Japanese Laid-Open Patent Publication No. 57-22009 and Japanese Utility Model Laid-Open No. 57-22009, a carriage is slid on two guide shafts, and a pivot or the like is used to make the pen arm rotatable on the carriage. It had a shaft.

The movement of the pen device is pulled by a wire or the like fixed to one end of the carriage, reciprocates on the shaft, and recording is performed on the recording paper by the pen attached to the tip of the pen arm.

[Problems to be solved by the device]

However, in the pen device of the recorder configured as described above, when viewed from the viewpoint of recording accuracy, how faithfully the pen tip operates with respect to the movement of the wire becomes a problem. Since the pen tip has friction with the recording paper, the recording error is the amount of tilt caused by the play between the carriage and the shaft, and the play in the lateral direction of the pivot (the direction perpendicular to the flow direction of the recording paper) Is the total error with the amount of tilt of the pen arm.
Also, since the pivot part is sharp, it is weak against external force,
In many cases, play occurs when the pen is replaced.

[Means for Solving the Problems]

In order to solve such problems, the present invention provides a carriage, a pulley and a wire that are coupled to the carriage and drive the carriage in a first direction, and a main shaft that slides the carriage in the first direction. And a pen arm that is independent of the carriage and that rotates in a second direction that holds the pen and that intersects the first direction, and an engaging portion that is sandwiched by the carriage and that partially engages the pen arm. And a shaft for a pen lifter having.

[Action]

In the present invention, the pen arm is rotatably attached independently of the carriage, so that the error element from the wire to the pen tip is reduced.

〔Example〕

1 is a plan view showing an embodiment of a pen device of a recorder according to the present invention, FIG. 2 is a sectional view taken along line II-II 'of FIG. 1, and FIG. 3 is an arrow III of FIG. It is the top view seen from the direction. In these figures, 1 is a pen, 2 is a pen arm that holds the pen 1, 3 is an engaging portion that is sandwiched by a carriage 4 described later, and partly engages the pen arm 2 Shafts for pen lifters 4 for rotating in the AA 'direction) are carriages for supporting the pen arms 2 engaged via the shafts 3 and for moving them in the direction of arrow BB', and 6 is a carriage for moving the carriage 4 in the direction of arrow B. −
The main shaft 7 which slides in the B'direction and 7 are wires for connecting the carriage 4 and driving it in the direction of the arrow BB '.

In such a configuration, the pen arm 2 holding the pen 1 moves in the vertical direction (arrow A-A 'around the shaft 3).
Direction) and an up-down operation is performed, and a wire 7 connected to a carriage 4 for holding the shaft 3 is driven to move on the main shaft 6 by an arrow BB '.
Recording is carried out by sliding in the direction.

[Effect of device]

As described above, according to the present invention, since the pen arm is rotatably attached independently of the carriage, the error generating element from the pen tip to the wire and the error generation from the pen tip to the wire are generated. Since there is less rattling due to replacement of elements and pens, recording accuracy is improved, and a pen device of a recorder having high quality and reliability can be obtained, which is a very excellent effect.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a pen device for a recorder according to the present invention, and FIG. 2 is a sectional view taken along the line II-II 'in FIG.
FIG. 3 is a plan view seen from the direction of arrow III in FIG. 1 ... Pen, 2 ... Pen arm, 3 ... Shaft for pen lifter, 4 ... Carriage, 6 ... Main shaft, 7
...... Wire.

Claims (1)

[Scope of utility model registration request] 1. A carriage, coupled to said carriage, and said carriage being first.
, A main shaft for sliding the carriage in the first direction, and a second shaft which is independent of the carriage and holds the pen and intersects the first direction. A pen device for a recorder, comprising: a pen arm that pivots in a direction; and a pen lifter shaft that is sandwiched by the carriage and has an engaging portion that partially engages the pen arm.