JP2524048Y2 - Printer paper guide - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a paper guide device for a printer.

(Prior art) In order to print on either cut sheet or continuous paper, printers usually use a paper guide plate that is inclined up to the back side to form a paper feed tray when cut paper is used. When using continuous paper, the paper guide plate is laid down and its lower surface is used as a guide surface, and when the continuous paper is loaded, the paper guide plate is removed.

Japanese Unexamined Utility Model Publication No. 62-154853 also relates to this type of printer, in which two pins provided on both sides of the base end of a paper guide plate are provided on one side of an inverted V-shaped groove provided on a side plate of the main body. Alternatively, the paper guide plate can be applied to both cut sheet and continuous paper by being locked or removed from each other, but in this device, the paper guide plate is In addition to the inconvenience of having to remove and change the direction, there is also the inconvenience that the paper guide plate cannot always be connected and held as one unit of the printer body.

(Problem to be Solved by the Invention) The present invention has been made in view of such a problem, and its purpose is to use a cut sheet used simply by rotating the printer without removing it from the printer body. An object of the present invention is to provide a paper guide device of a new printer which can easily correspond to continuous paper.

(Means for Solving the Problems) In other words, the present invention provides a paper guide device for a printer for achieving the above object, which includes a long locking projection in a direction substantially parallel to the paper guide plate on both sides of a base end of the paper guide plate. In addition, an engaging recess for receiving the locking projection is formed at the paper guide plate pivoting position of the printer body side plate, and the engaging recess is provided at the upper part on the back side. The upper part is formed in a substantially fan shape having an opening narrower than the length of the locking protrusion, and one side edge on the back side is formed between the oblique posture holding portion and the oblique posture holding portion and the separation preventing protrusion. The rear end pivotal support portion and the other side edge of the locking projection are formed as arc-shaped portions for guiding the tip of the locking projection, and the lower end of the engagement concave portion is provided with some clearance so that the locking projection is formed. To form a recess that supports the tip of
This allows the user to change between the lying posture, the oblique posture, and the standing posture without removing the paper guide plate.

Embodiment An embodiment of the present invention will be described below.

FIGS. 1 to 3 show one embodiment of the present invention, which is shown in a state of being applied to cut paper and continuous paper.

In the figure, reference numeral 1 denotes a paper guide plate. On both sides of a base end portion of the paper guide plate 1, engagement protrusions 2 having a rectangular cross section, which are long in the longitudinal direction and have rounded ends, are integrally formed. Have been.

On the other hand, reference numeral 4 in the drawing denotes a printer main body, and the paper guide plate is engaged with the engagement projection 2 of the paper guide plate 1 at the pivotal position of the side plate 5 so that the paper guide plate 5 is in each position. An engaging recess 6 to be held is provided in a recessed manner.

The engaging recess 6 is formed in a substantially fan shape having an opening 6a whose upper portion is narrower than the length of the engaging protrusion 2 by a detachment preventing protrusion 6c extending from the upper rear side. As shown in FIG. 2 (a), the back side, that is, the side edge on the right side of the figure is formed as an oblique posture holding portion 6b which abuts the side surface of the engaging projection 2 and supports the paper guide plate 1 obliquely. In addition, between the upper end of the oblique posture holding portion 6b and the above-mentioned detachment preventing projection 6c, one of the pivotal support portions 6d for supporting the rear end 2a of the engaging projection 2 and standing up the paper guide plate 1 is provided. Further, at the lower end of the oblique posture holding portion 6b, there is formed a concave portion 6e for receiving the tip 2b of the engaging projection 2 and supporting this portion.
As shown in FIG. 3 (a), the boundary between the oblique attitude holding portion 6b and the oblique attitude holding portion 6b serves as a support portion 6f for supporting the side surface of the tip 2b of the engaging projection 2 when the paper guide plate 1 is erected. Is formed.

On the other hand, the other side of the locking recess 6, that is, the side edge on the left side in the figure, has a guide arc surface 6 g for guiding the tip 2 b of the locking projection 2 when raising the paper guide plate 1 with the pivot 6 d as a fulcrum. Formed as
The lower end of the guide arc surface 6g continues to the recess 6b described above, and the protrusion at this boundary is located slightly above the opposite supporting portion 6f, as shown in FIG. 3 (a). And paper guide board 1
The tip 2b of the locking projection 2 that has fallen into the recess 6e when the
Is formed as a fulcrum portion 6h that supports the support portion 6f together with the support portion 6f.

In the embodiment configured as described above, when printing on continuous paper such as fanfold paper, the third
As shown in FIG. 7A, when the paper guide plate 1 is rotated counterclockwise in the figure with the concave portion 6e as a fulcrum, the paper guide plate 1 at the end of the rotation uses the fulcrum portion 6h as a fulcrum. In other words, it is supported by the opposite supporting portion 6f so as to fall to the left side in the figure, and is held in the standing posture shown in FIG.

Therefore, when the continuous paper S is loaded into the printer in this state, and then the paper guide plate 1 is slightly lifted and lowered to the back side,
As shown in FIG. 1 (a), the locking projection 2 has a rear end.
2a is positioned in the pivot 6d, and the leading end 2b is slid in contact with the guide arc surface 6g while being restrained between the two to fall without falling off, and the continuous paper as shown in FIG. It is held in the guiding posture.

On the other hand, when printing on cut paper, the pivot 6d
(A), or the paper guide plate 1 is rotated clockwise from the standing position shown in FIG. 3 with the concave portion 6e as a fulcrum. And the second
The oblique posture shown in FIG.

As a result, the side surface of the locking projection 2 comes into contact with the oblique posture holding portion 6b of the locking concave portion 6, and the tip 2b falls into the concave portion 6e, so that the paper guide plate 1 is in this oblique posture. It is held and serves as a cut sheet insertion guide surface.

Further, when it is necessary to remove the paper guide plate 1, if the paper guide plate 1 is pulled up in a state of standing upright, the paper guide plate 1 can be removed without any restraint.

(Effects of the Invention) As described above, according to the present invention, the paper guide plate is provided with a long locking projection parallel to the base end thereof, while the paper guide plate is formed to project inward from the printer body. An opening that is narrower than the locking projection is provided by the separation preventing projection, and one side is fitted with the oblique attitude holding section, the other side is fitted with the guide arc surface for preventing disengagement, and the lower end is fitted with the tip of the locking projection. Since the holding recess is provided, simply turning the paper guide plate while the engaging projection is engaged with the engaging recess allows the standing paper for the continuous paper loading from an oblique posture to the cut sheet. The paper guide plate can be freely displaced and held up to the position posture and the lying posture for guidance, and the paper guide plate can be attached and detached as necessary.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are views showing a main part and an overall image of a lying posture according to an embodiment of the present invention, and FIGS. 2 (a) and (b) are diagrams showing an oblique posture as in the first embodiment. 3 (a) and 3 (b) show the same standing posture. DESCRIPTION OF SYMBOLS 1 ... Paper guide plate, 2 ... Locking protrusion 5 ... Body side plate, 6 ... Engaging recess

Claims (1)

(57) [Scope of request for utility model registration] A long locking projection is formed on both sides of a base end portion of the paper guide plate so as to extend substantially in parallel with the paper guide plate. An engagement recess for receiving the projection is formed, and the upper portion of the engagement recess is narrower than the length of the locking projection by a detachment preventing projection that protrudes inward from an upper portion on the back side. Formed in a substantially fan shape having an opening, one side edge of the back side is an oblique posture holding portion,
A rear end pivot portion of the locking projection is formed between the oblique posture holding portion and the separation preventing projection, and an other side edge is formed as an arc-shaped portion for guiding a tip of the locking projection. A paper guide device for a printer, wherein a lower end of the mating recess is provided with a recess for supporting the tip of the locking projection with a margin.