JP2592596Y2 - Pinch roller device of recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a pinch roller device of a recording device, and particularly to a pinch roller device of a recording device using a recording pen.

(Prior art)

FIG. 5 shows a conventional recording apparatus using a recording pen, 1 is a recording pen, 2 is a platen, 3 is recording paper placed on the platen 2, 4 is a driving roller thereof, and 5 is a cooperating with the driving roller 4. A pinch roller for moving the recording paper 3 relative to the platen 2 in the X-axis direction;
Reference numeral 7 denotes a carriage shaft that guides the pen carriage 6 in the Y direction.

As the recording paper 3 on the platen 2, various standards are used. For example, even in the same A3 size, the width W and length L are different between ANSI standard and ISO as follows.

Therefore, for example, in the case of an apparatus conforming to ANSI standard recording paper, when using ISO standard recording paper, it is necessary to change the position of the pinch roller 5 located on one side on the platen 2 each time.

Therefore, conventionally, the length of the support shaft 8 for rotatably supporting the pinch roller 5 is made sufficiently long, and when the recording paper 3 conforms to the ANSI standard, the cylindrical spacer 9 is connected to the base of the support shaft 8 as shown in FIG. And the pinch roller 5, the pinch roller 5 is positioned at the tip of the support shaft 8, and when the recording paper 3 conforms to the ISO standard, the spacer 9 is attached to the tip of the support shaft 8 as shown in FIG. The pinch roller 5 is interposed between the support shafts 5 so as to be positioned at the base of the support shaft 8.

[Problems to be solved by the invention]

As described above, in the conventional pinch roller apparatus of the recording apparatus, an extremely troublesome operation of removing the pinch roller 5 and the spacer 9 from the support shaft 8 every time the standard of the recording paper 3 is changed, changing the positions thereof, and attaching the spacer again is necessary. There were drawbacks.

The pinch roller device of the recording apparatus according to the present invention eliminates the above-mentioned disadvantages.

[Means for solving the problem]

The pinch roller device of the recording apparatus according to the present invention has a hollow support shaft having a sufficient length, a detent groove formed on the outer peripheral surface of the support shaft so as to extend in the axial direction, and intersects the detent groove. Position stop grooves formed on the outer periphery of the support shaft at a plurality of locations spaced apart in the axial direction, and the support shaft has an axial direction.
And an elastic pinch roller that is movably fitted to the roller.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

In the present invention, as shown in FIGS. 1 to 4, instead of using the conventional cylindrical spacer 9, an axial detent groove 10 is formed on the support shaft 8 over its entire length, and the ANSI standard and IS
Position stopper grooves 11 and 12 are formed on the outer periphery at positions corresponding to the O standard, and a rubber roller as the pinch roller 5 is fitted on the outer periphery of the support shaft 8.

The support shaft 8 is hollow as shown in FIG. 3 and FIG.

[Effect of the invention]

Since the pinch roller device of the recording apparatus according to the present invention has the above-described configuration, the pinch roller 5 is moved axially along the detent groove 10 on the support shaft 8 so that the position stop grooves 11 and 12 of the support shaft 8 are moved. In this case, it is possible to very easily cope with a change in the standard of the recording paper.

In this case, the rubber roller as the pinch roller 5 fitted to the support shaft 8 has an inner peripheral surface elastically deformed as shown in FIG. The pinch roller 5 is forcibly moved in the axial direction along the detent groove 10 and
As shown in the figure, when the position of the positioning groove 11 or 12 formed on the outer peripheral surface of the support shaft 8 is set, the inner diameter portion of the rubber roller is further elastically deformed and the groove 11 or 12 is formed in addition to the groove 10. In this position, a convex portion is formed on the inner peripheral surface of the pinch roller 5 so as to be fitted in a cross-shaped groove formed by the position-stop groove 11 or 12 and the rotation-stop groove 10. .

Therefore, the pinch roller 5 is securely stopped at the position where the positioning groove 11 or 12 is formed, and does not move out of this position without any notice. This has great advantages such as easy positioning.

[Brief description of the drawings]

FIG. 1 is a front view of a support shaft in a pinch roller device of the recording apparatus of the present invention, FIG. 2 is a front view of a state in which a pinch roller is fitted to the support shaft, FIG.
FIG. 4 is a longitudinal sectional side view, FIG. 5 is a perspective view of a conventional recording apparatus, and FIGS. 6 and 7 are explanatory views of a conventional pinch roller apparatus. 1 ... Recording pen, 2 ... Platen, 3 ... Recording paper, 4 ...
… Drive roller, 5… pinch roller, 6… pen carriage, 7… carriage shaft, 8… support shaft, 9…
... Cylindrical spacer, 10 ... Detent groove, 11,12 ... Position stop groove.

 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-60-178098 (JP, A) JP-A 62-77163 (JP, U) JP-A 62-22374 (JP, Y2)

Claims (1)

(57) [Scope of request for utility model registration] 1. A hollow support shaft having a sufficient length, a detent groove formed on an outer peripheral surface of the support shaft so as to extend in an axial direction, and an axial direction of the support shaft intersecting the detent groove. A pinch roller device for a recording apparatus, comprising: positioning stopper grooves formed in the outer periphery at a plurality of locations spaced apart from each other; and an elastic pinch roller fitted movably in the axial direction to the support shaft.