JPH079650Y2 - Paper regulation mechanism of printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a paper regulating mechanism for guiding a paper to an arbitrary position when the paper is loaded in a printing mechanism.

[Conventional technology]

A conventional sheet regulation mechanism is a mechanism for loading a single-cut sheet with the sheet width determining member being moved to a predetermined position.

[Problems to be solved by the device]

In the prior art, when setting a single-cut sheet in the printing device, it is usually used with one side of the sheet width determining member aligned with a predetermined position, so that the sheet can be taken to an arbitrary position. However, there was a big problem in accuracy when printing at that position. In addition, when it is desired to change the printing position without changing the paper position, it is necessary to perform an operation on software, which is considered to be very troublesome.

Therefore, the present invention solves such a problem, and an object of the present invention is to easily change the printing position even when setting a paper of an arbitrary size. The purpose is to provide a paper regulating mechanism that is structurally simple and has excellent positioning accuracy.

[Means for Solving the Problems]

The paper regulation mechanism of the printing device according to the present invention is provided with a paper guide plate for guiding the cut paper to the paper insertion portion of the printing device and a position movable in the width direction of the paper guide plate so as to move the cut paper in the width direction. A pair of paper width determining members for restricting is provided, and an uneven portion having a pitch a is provided in the width direction of the paper guide plate. Further, the paper width determining member flexes and independently engages with the uneven portion. A plurality of matching engaging portions are provided in the width direction at intervals of a non-integer multiple of the pitch a.

〔Example〕

Hereinafter, the present invention will be described in detail based on embodiments.

FIG. 1 is a diagram of a paper regulating mechanism in an embodiment of the present invention, which is composed of a paper guide plate 1 and paper width determining members 2 and 3 mounted slidably in a lateral direction. FIG.

FIG. 2 shows an embodiment of the paper guide plate 1 described above, in which convex / concave portions 11 that engage with the paper width determining members 2 and 3 are formed parallel to the width direction.

FIG. 3 is a view showing an embodiment of the above-mentioned paper width determining members 2 and 3, and is a bent portion 21, 2 having the thickness of the paper guide plate 1.
2, 23 are formed on the upper side and the lower side. Further, the bent portion on the upper side is divided into two, and when mounted on the paper guide plate, one of the two divided into the convex and concave portions 11 of the guide plate is an engaging portion so as to elastically engage with each other. Convex 25,25 '
Are formed.

On the other hand, the second sheet width determining member 3 whose position is adjusted according to the width of the sheet is formed in a shape symmetrical with the first sheet width determining member 2 described above.

FIG. 4 shows that a series of convex and concave portions 11 and bending portions 21 and 22 which are divided into two in the paper direction are formed so that the convex and concave portions 11 are brought into contact with each other and the convex portions 25 divided into two are engaged with each other. ,
The position of the paper width determining member is restricted. In addition, if the other convex part is to be fitted, the convex parts 25,2
Since the pitch of the unevenness which is continuous with the pitch of 5'is formed with only one unevenness, the sheet width deciding member can be slid and the position can be regulated by the operation of 1 / 2a pitch.

FIG. 5 shows another embodiment of the paper width determining member, in which a series of convex and concave portions 11 and three-divided convex portions 25 are formed so as to engage with each other at only one position in the 1 / 3a pitch. Fine movement is possible, and position regulation becomes easier.

Also, the folded portion of the paper width determining member is divided into two, three, and four.
Fine positioning is possible by dividing.

In the present embodiment, the engagement of the convex and concave portions of the paper guide plate 1 and the paper width determining member 2 is a combination of triangular shape and triangular shape (Fig. 4), triangular shape and trapezoidal shape (Fig. 5). However, any configuration may be adopted as long as they are engaged with each other, such as an arc shape and a trapezoid, and an arc shape and an arc shape.

Further, by partially changing the size and shape of the series of convex and concave portions 11 of the paper guide plate 1, it becomes easy to set the paper width determining member at a predetermined position.

[Effect of device]

The paper regulating mechanism of the printing apparatus according to the present invention is provided movably in the width direction of the paper guide plate and includes a pair of paper width determining members for regulating the position of the cut sheet in the width direction. An uneven portion having a pitch a is provided, and a plurality of engaging portions that bend and independently engage with the uneven portion are provided on the sheet width determining member at intervals of a non-integer multiple of the pitch a in the width direction. Since the one engaging portion engages with the concave-convex portion and the paper width determining member is positioned with a fine precision equal to or smaller than the pitch a, the paper width determining member allows the paper of any size to be placed at almost any position. Can guide stably.

[Brief description of drawings]

1 (a) and 1 (b) are a plan view and a right side view in which a paper width determining member is attached to a paper guide plate according to an embodiment of the present invention. 2 (a), (b), and (c) are a side view, a rear view, and a bottom view of a paper guide plate having a mechanism similar to that of FIG. 3 (a) and 3 (b) are a side view and a back view showing the paper regulating plate. FIG. 4 is a detailed view showing a state in which the sheet width determining member is attached to the sheet guide plate and is in alignment therewith. 5 and 6 are detailed views showing another embodiment. 1 …… Paper guide plate 2 …… Paper width determining member 3 …… Paper width determining member 11 …… Convex concave portion 21 …… Upper bent portion 22 …… Upper bent portion 23 …… Lower bent portion 25 …… Convex portion Joint part)

Claims (1)

[Scope of utility model registration request] 1. A paper guide plate for guiding a single-cut sheet to a paper insertion section of a printing device, and a pair of papers movably installed in the width direction of the paper guide plate to regulate the position of the single-cut sheet in the width direction. A width determining member is provided, and an uneven portion having a pitch a is provided in the width direction of the paper guide plate, and the paper width determining member has an engaging portion that flexes and independently engages with the uneven portion. A plurality of paper regulating mechanisms for a printing device, wherein a plurality of them are provided in the width direction at intervals of a non-integer multiple of the pitch a.