JPS5855277A - Printer - Google Patents

Abstract

PURPOSE:To prevent the rolling-up of rolled paper with slack portion due to vibration or impaction into a platen roller during printing period by providing a partition plate between the platen roller and the rolled paper to the cover of the housing portion for the rolled paper. CONSTITUTION:In a printer having a housing case 5 for a rolled paper 3 and an easy-open cover 4 provided to the housing case 5, a partition plate 4a is provided to the cover 4, having a structure such that it partitions between the housing case 5 and a platen roller 2 when closing the cover 4 and also separates from the partition position when opening the cover 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a printer having a paper feed mechanism including roll paper, a roll paper storage case, and a platen roller, in which looseness of the roll paper caused by vibration impact is caught up in the platen roller. This song aims to prevent this from happening.

Conventionally, roll paper for printers has been widely used because it is advantageous in terms of storage when not in use and space saving during use. However, due to vibrations and shocks, the winding of the roll paper loosens, causing a gap or crease in the paper, so a partition is installed between the roll paper and the platen roller to prevent the loose part from getting caught by the opposing platen roller. A board was set up. however,
This partition plate is not removed every time the roll paper is replaced, but is retained semi-permanently, and becomes an obstacle to the operation of winding unused roll paper around the platen roller, making the operation difficult.

The present invention eliminates such conventional drawbacks and will be described below along with embodiments thereof. In Figures 1 to 5, 1 is the main body case, 1-IL is the printing pad cover, 1
-b is a roller that makes contact with the platen roller 2 to feed the paper, 3 is a roll paper, and the main body case 1
It is stored in the rear part of the. 4 is the storage lid for the roll paper 3, and on the back side there are the platen roller 2 and the roll paper 3.
A partition plate 4-1L is integrally formed to separate the two. Further, the lid 4 is attached so as to be openable and closable around rotational shafts 4-b implanted at both end corners thereof.

FIG. 2 is only intended to clearly show the positional relationship between the platen roller 2 and the roll paper 3. The tip of the roll paper 3 is normally wound up from the rear lower part of the platen roller 2. Reference numeral 6 denotes a roll paper storage case for storing roll paper, and is provided with a notch Sa for pivotally supporting the platen roller 3 and a guide curved plate 6 for guiding the roll paper. The roll paper 3 can freely rotate within the roll paper storage case.

FIG. 3 shows the inside of the roll storage case 6 from which the roll paper 3 shown in FIG. 2 has been removed, and 6 indicates the roll paper 3.
It is a cylindrical roller installed so that it can rotate on white objects.

FIG. 4 is a cross-sectional view of the roll paper storage case 6 cut along the plane shown in FIG. 2 so as to pass through the center of the cylindrical roller 6.

Next, a mechanism for preventing roll paper from getting caught will be explained.

As shown in FIG. 4, when the storage lid 4 is closed, the partition plate 4-a provided on the back side of the storage lid 4 prevents the roll paper 3 from becoming loose due to vibration impact. There is no need to worry about the paper being unnecessarily caught up in the platen roller 2, and there is no problem with the paper feeding mechanism. Next, when the storage lid 4 is open as shown by the dotted line 4, the partition plate 4-
a is located above the roll paper 3, and since there are no obstacles between the roll paper 3 and the platen roller 2,
The operation of winding unused roll paper onto a platen roller 2 can be completed easily and in a short time.

As is clear from the above description, according to the present invention, by providing a partition plate on the back side of the roll paper storage lid, when the storage lid is closed, it is possible to prevent the roll paper from being unnecessarily entangled, and when the storage lid is closed, it is possible to In this case, there is an advantage that normal winding of unused paper rolls can be completed easily and in a short period of time.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of a printer according to an embodiment of the present invention, Fig. 2 is a perspective view of the main parts, and Fig. 3 is a perspective view of other main parts. It is. ...Roll paper, 4...Roll paper storage lid b 4 a...Partition plate, 4-b...
・Rotating shaft, 6...Roll paper storage case.

Claims (1)

[Claims] A storage section that stores roll paper, a storage lid provided on this storage section that can be opened and closed, and a storage lid that is fixed to the storage lid and located between the platen roller and the rolled paper when the storage lid is closed. and a partition plate that separates from the position when the storage lid is opened.