JPH106569A - Printer for recording medium of continuous length - Google Patents

Abstract

PROBLEM TO BE SOLVED: To position the center of each width of recording mediums of continuous lengths with a plurality of kinds of widths at the center of the upper and lower sides of a printing head in a printer for the recording medium of continuous lengths which prints the recording mediums of continuous lengths with a plurality of kinds of widths. SOLUTION: A lower guide 7 for supporting a recording medium 2 of continuous lengths from the lower side on a carrying path 8 for the recording medium of continuous length on both sides of a printing head 1 and an upper guide 9 for pressing the recording medium 2 of continuous lengths from the upper side on the upstream side of the carrying path 8 for the recording medium of continuous lengths from the printing head 1 are respectively provided so as to be freely rocked and a cam member 16 with two cam faces 16a and 16b being hooked respectively on the lower guide 7 and the upper guide 9 and the lower guide 7 and the upper guide 9 are rocked by moving the cam member 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer for a long recording medium in the form of a tape such as a terminal board nameplate or a label tape, and more particularly, to print the center of each width of a plurality of types of long recording media. The present invention relates to a technique for positioning the head at the upper and lower centers.

[0002]

2. Description of the Related Art Heretofore, as this type of apparatus, the vertical position has been adjusted by, for example, changing the vertical dimension of a label tape cassette.

[0003]

Without using a cassette, the center of each width of a tape-shaped long recording medium such as a terminal plate nameplate or a label tape having a plurality of widths is centered on the top and bottom of the print head. The task is to position them.

[0004]

According to the present invention, there is provided a long recording medium printer for printing a plurality of types of long recording media.
A lower guide that supports the long recording medium from below on the long recording medium conveyance path on both sides of the print head, and an upper guide that presses the long recording medium from above on the long recording medium conveyance path upstream from the print head. A cam member having two cam surfaces engaged with each of the lower guide and the upper guide is provided so as to be swingable, and the lower guide and the upper guide swing by the movement of the cam member.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Of the two cam surfaces provided on a cam member, one cam surface is engaged with a lower guide and the other cam surface is engaged with an upper guide. When positioning the center of a narrow long recording medium at the center,
By moving the cam member forward, the lower guide swings upward and the upper guide swings downward. When the center of the wide elongate recording medium is positioned at the upper and lower centers of the print head, the movement of the cam member is reversed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention. 1 is a thermal print head (hereinafter referred to as a print head). 2 is a tape-shaped long recording medium (hereinafter referred to as a recording medium) such as a terminal plate nameplate or a label tape. Reference numeral 3 denotes a platen, 4 denotes a ribbon guide, and 5 denotes a recording medium transport roller (hereinafter, referred to as a transport roller). The transport roller 5 is driven by a motor (not shown). Reference numeral 6 denotes an idle roller, and the idle roller 6 is configured as a pair with the transport roller 5, and the transport roller 5 and the idle roller 6 constitute transport means for the recording medium 2.

Reference numeral 7 denotes a lower guide, which supports the recording medium 2 from below, and constitutes a lower portion of a conveyance path 8 for the recording medium 2. The lower guide 7 has the print head 1 as a starting point. In addition to the above, a hole 7 in which an upstream guide surface 7a on the upstream side of the transport path 8 and a downstream guide surface 7b on the downstream side are formed.
c and a projection 7d are formed so as to be swingable with respect to the printer main body, and a cam receiving portion 7e is further formed.

Reference numeral 9 denotes an upper guide, which is composed of an upper guide body 10 and an upper guide support 11. The upper guide body 10 is located above the upstream guide surface 7a, and is formed with the upper guide surfaces 10a, 10a and the support shaft 10b. At the center of the upper guide support 11, the support shaft 1 is provided.
A hole 11a pivotally connected to the upper guide body 10 is formed.
Is adapted to swing about the support shaft 10b with respect to the upper guide holder 11, and the upper guide support 11
A pair of shafts 12a provided on the printer body 12 itself,
It swings through the holes 11b and 11c with the fulcrum 12b as a fulcrum, and further has a cam receiving portion 11f below and in addition to a spring receiving portion 12e provided at the distal end 11d. Reference numeral 13 denotes an elastic body composed of a leaf spring. The elastic body 13 is formed in a substantially U-shape.
Thus, the recording medium 2 is prevented from floating at the position of the print head because the width of the upper guide is small. Reference numeral 15 denotes a coil spring. The coil spring 15 is located below the spring receiving portion 11e, and the elasticity of the coil guide 15 causes the upper guide 9 to move the recording medium 2
And the urging means for urging the recording medium 2 horizontally at the printing position.

Reference numeral 16 denotes a cam member.
Has a cam surface 16a which engages with the cam receiving portion 7e of the lower guide 7.
And a cam surface 16b which engages with the cam receiving portion 11f of the upper guide support 11, and a long hole 16c and a long hole 16d are formed so as to be movable back and forth. A child 16e is formed. Although not shown, pins protrude from the printer body 12 in the long holes 16c and 16d.

With such a configuration, the present invention is implemented as described in the embodiments of the invention.

If a member for guiding the upper surface of the recording medium 2 is provided downstream of the print head 1 in the recording medium transport path 8, it becomes difficult to remove the recording medium 2 when the recording medium 2 is jammed. Therefore, a member for guiding the upper surface of the recording medium 2 is not provided downstream of the print head 1. Reference numeral 17 denotes an ink ribbon, and reference numeral 18 denotes a ribbon cassette.

[0012]

As described above, the present invention relates to a recording medium printer for printing recording media having a plurality of types of widths, and a lower guide for supporting the recording medium from below on transport paths on both sides of a print head; An upper guide for pressing the recording medium from above is provided on the upstream side of the transport path from the head so as to be swingable, and a cam member having two cam surfaces engaging with the lower guide and the upper guide is provided. The lower guide and upper guide are made to oscillate by the movement of the print head. And a good-looking printed recording medium can be provided. Also,
The upper guide is composed of an upper guide support that swings by the movement of the cam member and an upper guide body that swings by pressing the recording medium in the width direction, so that the upper guide body holds the recording medium in a well-balanced manner. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a perspective view of a main part of the present invention.

FIG. 3 is a perspective view when the main parts of the present invention are engaged.

FIG. 4 is a perspective view of the main part of the present invention when engaged with a state different from that of FIG. 3;

FIG. 5 is a plan view of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Print head 2 Recording medium 3 Platen 4 Ribbon guide 5 Transport roller 6 Idle roller 7 Lower guide 8 Transport path 9 Upper guide 10 Upper guide main body 11 Upper guide support 12 Printer main body 13 Elastic body 14 Screw 15 Coil spring 16 Cam member 17 Ink ribbon 18 Ribbon cassette

Claims (2)

[Claims] 1. A long recording medium printer for printing a plurality of types of long recording media, comprising: a lower guide for supporting the long recording medium from below on a long recording medium conveyance path on both sides of a print head; An upper guide that presses the long recording medium from above is provided on the upstream side of the long recording medium transport path from the print head so as to be swingable, and has two cam surfaces that engage with each of the lower guide and the upper guide. A long recording medium printer comprising a cam member, wherein a lower guide and an upper guide swing by movement of the cam member. 2. The long recording medium printer according to claim 1, wherein the upper guide swings by the movement of the cam member, and an upper guide body that swings by pressing the width direction of the long recording medium. And a printer for a long recording medium.