JPH0745488Y2 - Roll paper holder to prevent color development - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a roll paper holder of a recording apparatus using a roll-shaped thermal recording paper.

(Prior Art) Conventionally, in a facsimile machine or the like using a roll-shaped thermal recording paper, there are (i) roll paper direct placement system and (ii) spool system as roll paper holder systems. FIG. 3 shows the structure of a holder for directly placing the roll paper,
Fig. 3 (a) is a schematic view, Fig. 3 (b) is a longitudinal sectional view,
Figure (c) is a cross-sectional view. In FIG. 3, reference numeral 11 is a sliding member such as high-molecular polyethylene or Teflon for preventing streaky color development, 12 is roll recording paper, and 13 is a holder.

Further, FIG. 4 shows a spool system. Fourth
In the figure, 12 is roll recording paper, and 14 is a spool.

In the roll paper direct placement method, a sliding member is used to reduce the paper pulling force, that is, the friction between the roll wire and the holder, and to prevent streaky coloration when the color development surface is on the outside. Further, in the spool system, the spool 14 is fitted into the paper core of the roll recording paper 12, and the roll paper is placed together with the spool in the holder as shown in FIG. 4 (b).

(Problems to be solved by the invention) However, in the conventional holder system, the roll paper direct placement system is shown in FIG.
As shown in (b) and (b), burrs are often generated in the processing of the sliding member 11, and there is a problem in that the recording paper is colored with burrs and has a black streak.

In the spool method, the outer surface of the roll paper does not rub directly with the holder, so that the color does not bleed, but there are problems such as increased cost and difficulty in replacing the roll paper compared to the direct placement method.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a roll paper holder that prevents color development due to scratches while maintaining low cost and ease of roll paper replacement.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a roll paper holder with a convex portion and attaches a sliding member larger than the convex portion so as to cover all the convex portions. It is the one.

(Operation) Therefore, according to the present invention, since the edges of the sliding member and the roll paper do not directly cause the scraping, it is possible to prevent the coloring due to the scraping.

(Embodiment) FIG. 1 shows the structure of a roll paper holder for preventing color development due to streaks in an embodiment of the present invention. FIG. 1 (a) is a longitudinal section and FIG. 1 (b) is FIG. 1 (c) is an enlarged cross-sectional view of the portion A in FIG. 1 (a). In FIG. 1, 1 is a sliding member, 2 is roll recording paper, and 3 is a holder.

As shown in FIG. 1 (c), the protrusion is projected from the holder 3,
Use a sliding member that exceeds the width of the protrusion to attach it so that it covers the entire protrusion. By doing this,
Since the edge of the sliding member 1 and the outer surface (coloring surface) of the roll paper do not directly touch, coloration due to burrs can be prevented.

FIG. 2 shows another embodiment of the present invention. Second
In the case of the drawing, the sliding member 1 is provided on the lateral surface of the convex portion protruding from the holder 3.
It is the one that is bent and pasted. In this case, the bending amount 1 is set so that peeling does not occur.

In the above embodiment, the case where the convex portion is integrated with the holder 3 has been described. However, the convex portion may not be integral with the holder 3 and may be a different structure.

(Effects of the Invention) As is apparent from the above-described embodiment, the present invention does not cause the edge of the sliding member and the roll paper to directly stick to each other. Therefore, the advantages of the direct placement method are low cost and the roll paper can be easily replaced. In addition, it has an effect that it is possible to prevent the color development due to the cosmetic.

[Brief description of drawings]

FIG. 1 is a structural diagram of a roll paper holder for preventing color development due to streaks in one embodiment of the present invention, FIG. 2 is a structural diagram of a sliding member and a convex portion of a holder in another embodiment of the present invention, and FIG. Structure diagram of conventional holder for direct placement of roll paper, No. 4
The figure shows the structure of the conventional spool system, and FIG. 5 shows A of FIG.
It is an enlarged view of a part. 1,11 ... Sliding member, 2,12 ... Roll recording paper, 3,13 ... Holder, 14 ... Spool.

Claims (1)

[Scope of utility model registration request] 1. A recording apparatus using roll-shaped thermal recording paper, wherein a roll paper holder is provided with a convex portion, and a sliding member larger than the convex portion is attached so as to cover all of the convex portion. Roll paper holder that prevents Kosure color development.