JPH09110182A - Automatic paper feed tray - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic paper feed tray in which the size can be changed according to the size of a paper sheet so as to be able to miniaturize a printer. SOLUTION: This tray is constituted of a tray main body 1, a slider part 2 capable of being slided right and left against the tray main body, and a cover part 3 fitted to the slider part 2 capably of being opened/closed. The tray main body 1 is formed with recessed parts 15, 16 on the upper part of the side plate, and formed with engaging recessed parts 17, 18 for supplementally fixing the slider part 2 in case of a standard size and a wide size. Both side plates of the slider part 2 are formed with claw parts 6 for supplementally fixing, and engaging projecting parts are formed on the inside. The cover part 3 is provided with a fit projecting part 5, and this is fitted in the fit recessed part of the tray main body 1 so as to fix the slider part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic paper feed tray used in a video printer or the like for containing and supplying printing paper.

[0002]

2. Description of the Related Art There are several sizes of printing paper used in a printer, and an automatic paper feed tray for supplying each paper to the printer is adapted to the paper size. FIG. 10 shows a conventional automatic paper feed tray. In this automatic paper feeding tray, a partition plate 103 is provided in the tray main body 101 so as to support two kinds of paper sizes, and a lid 102 is attached to the upper part of the tray main body 101 so as to be openable and closable in order to prevent dust and the like from adhering. Yes, the partition plate 103 is arranged at the length position of a small size sheet. When accommodating a small size sheet, the partition plate 103 is set up and the printing sheet is accommodated. When accommodating a large-sized sheet, the partition plate 103 is tilted to increase the accommodating size of the sheet.

[0003]

However, for this type of paper tray, the tray size must always be the maximum size of paper used. Therefore, this has been an obstacle to reducing the size of the printer that accommodates the paper feed tray.

An object of the present invention is to provide an automatic paper feed tray capable of reducing the size of the printer by changing the size according to the paper size.

[0005]

SUMMARY OF THE INVENTION The present invention is an automatic paper feed tray that stores printing paper and supplies it to a printer, and a tray main body and a paper storage portion that slides from the tray main body according to the paper size. A slider portion that can be enlarged and a lid portion that is openably and closably attached to the slider portion are provided, and one of the upper portion of the tray body and the lower portion of the lid portion has a convex portion and the other has a concave portion, and the lid portion is closed. The convex portion and the concave portion are fitted to each other to fix the slider portion at the time.

Further, the slider portion is formed with a claw for auxiliary fixing, the claw is formed with a convex portion or a concave portion on a side contacting with the tray body, and the tray body is positioned at a position corresponding to a size of printing paper. And a concave portion or a convex portion for auxiliary fixing the slider portion is formed, and the slider portion is auxiliary fixed by sliding the slider portion to engage the convex portion and the concave portion.

In the case where a protruding portion is provided at an upper end portion of the lid portion and a front cover which is vertically openable and closable is placed in an accommodation portion of an automatic paper feed tray of a printer from which printed sheets are discharged. Further, when the slider portion is pulled out to enlarge the paper storage portion, the front cover comes into contact with the projecting portion and is not completely closed.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing an embodiment of an automatic paper feed tray according to the present invention. (A) is a top view, (B) is a side view, and (C) is a side view of the tray body. This automatic paper feed tray can store two sizes of paper, standard size and wide size. This tray is composed of a tray body 1, a slider portion 2 slidable with respect to the tray body, and a lid portion 3 attached to the slider portion 2 so as to be openable and closable.

The tray body 1 is shown in FIGS. 1A and 1C.
As shown in FIG. 3, the rectangular bottom plate is provided with side plates vertically on opposite ends thereof. Fitting recesses 15 and 16 are formed in the upper portion of the side plate, and the slider portion 2 is provided outside the side plate.
A rail portion is formed so that the can be slid. The rail portion is formed by projecting outward in parallel with the side plate in the vertical direction. Further, the side plates are formed with engagement recesses 17 and 18 for auxiliary fixing the slider portion 2 in a standard size and a wide size. A fixing portion 13 that is fixed when the printer body is accommodated in the printer body is formed in the lower portion thereof.

The slider portion 2 has side plates vertically provided on opposite end sides of a rectangular bottom plate. A front plate 2a is attached to the front end portions of both side plates, and a shaft 7 that pivotally supports the lid portion 3 is formed at the rear end portions. Further, on the upper rear end of the side plate, the lid 3
Is formed with an engaging protrusion 9 that engages when the lid 3 is opened, and the engaging protrusion 1 that engages when the lid 3 is closed is provided on the front upper portion of the side plate.
1 is formed. Claws 6 for auxiliary fixing on both side plates
Is formed, and an engaging convex portion (not shown) is formed inside thereof, and engages with the engaging concave portions 17 and 18 of the side plate of the tray body 1.

The lid portion 3 is rotatably supported by the shaft 7 of the slider portion 2 and is provided with an engagement hole 8 at its rear end.
When is opened, the engaging projection 9 is engaged and fixed in the engaging hole 8. An engaging hole 10 that engages with an engaging protrusion 11 of the slider portion 2 when the lid 3 is closed is provided in the lower portion of the side plate, and a fitting protrusion 5 is further provided, so that the tray main body 1 has The slider portion 2 is fixed by fitting in the fitting recesses 15 and 16.

Here, the fitting projections 5 and the fitting recesses, the fitting recesses 15 and 16 to the fitting projections, the engaging projections 18 and 19 to the engaging recesses, and the engaging projections of the claws 6. May be formed in the engaging recess.

The operation of the automatic paper feed tray loaded with standard size paper will be described. FIG. 2 is a side view of an automatic paper feed tray for loading standard size paper, and FIG.
It is a top view except. When using standard size paper, the front plate 2a of the slider portion 2 is brought into contact with the end portion of the tray body 1. The engaging protrusion of the claw 6 of the slider portion 2 engages with the engaging recess 17 of the tray body 1, and the slider portion 2 is auxiliary fixed to the tray body 1. The lid 3 is opened, the engaging hole 8 is engaged with the engaging projection 9, and the lid 3 is temporarily fixed.
By doing this, the slider unit 2 is attached to the tray body 1.
The lid 3 is supplementarily fixed and the paper can be stored easily. In this state, the standard size paper 19 is mounted on the tray body 1 and the lid 3 is closed. The fitting convex portion 5 of the lid portion 3 is fitted into the fitting concave portion 15, and further, the engaging convex portion 1 of the slider portion 2
The engaging hole 10 of the lid portion 3 is engaged with 1 to be fixed. In this way, the slider portion 2 is completely fixed to the tray body 1.

FIG. 4 is a side view of an automatic paper feed tray for loading wide size paper, and FIG. 5 is a top view without the lid 3. When using wide size paper, the user pulls out the front plate 2a of the slider portion 2. The engaging protrusion of the claw of the slider portion 2 engages with the engaging recess 18 of the tray body, and the slider portion 2 is auxiliary fixed to the tray body 1. The lid 3 is opened, the engaging hole 8 is engaged with the engaging projection 9, and the lid 3 is temporarily fixed. By doing so, the slider portion 2 and the lid portion 3 are auxiliary fixed to the tray body 1, and the storage of sheets becomes easy. In this state, the wide size paper 20 is mounted on the tray body 1 and the lid 3 is closed. The fitting convex portion 5 of the lid portion 3 is fitted into the fitting concave portion 16, and the engaging convex portion 11 of the slider portion 2 is further fitted to the engaging hole 10 of the lid portion 3.
Are engaged and fixed. In this way, the slider portion 2 is completely fixed to the tray body 1 (see FIG. 6).

FIG. 7 is a sectional view showing the principal part of the printer main body when the automatic paper feed tray is set in the printer main body. This printer body has an automatic paper feed tray 30
There is a housing part for housing the. When the automatic paper feed tray 30 is accommodated in this accommodating portion, an openable / closable front cover 31 is arranged on the upper portion thereof. The front cover 31 is rotatably supported by the shaft 32 of the printer main body at the rear end portions of both ends, and a projection 33 is provided below the shaft 32. As shown in the figure, the protrusion 33 is biased by a leaf spring 34 in the closing direction when the front cover is below a certain angle with respect to the horizontal direction, and in the opening direction when the front cover is above the certain angle. . Although not shown, the speed of opening and closing the front cover is moderated by an oil damper. The paper fed from the automatic paper feed tray 30 is printed inside the printer and discharged onto the upper portion of the lid portion 3 of the automatic paper feed tray 30.

As shown in FIG. 8, standard size paper 19
When is mounted on the automatic paper feed tray 30, the front cover 31 can be completely closed. Even if the front cover 31 is closed, the internal size is a size capable of accommodating a standard size sheet, and thus the ejected sheet is directly mounted on the lid portion 3.

As shown in FIG. 9, wide size paper 2
When 0 is mounted on the automatic paper feeding tray 30, the slider 12 of the automatic paper feeding tray 1 is pulled out, so that the protruding portion 12 of the lid 3 is moved forward. Therefore, the lower front end portion of the front cover 31 comes into contact with the protruding portion 12 of the lid portion 3 and cannot be completely closed. The paper fed from the automatic paper feed tray 30 is printed and discharged to the upper part of the lid 3, but since the front cover 31 is not closed, the paper is mounted on the lid 3 as it is. If the front cover 31 is closed, the inside is fitted to the standard size paper, so if the wide size paper is used, the storage size will be insufficient and a paper jam will occur, but since the front cover 31 is open, A stable paper ejection operation that does not cause paper jams can be performed.

[0018]

According to the present invention, the tray main body and the slider portion are provided, and the slider portion can be slid to accommodate the paper size. Therefore, when the paper is small, the tray size can be made small, and the printer body can also be made small. Can be converted.
If the paper size is large, the slider can be pulled out as needed to handle the problem.

Further, by engaging the claws of the slider portion with the projections and depressions formed on the tray body, the slider portion and the tray body are supplementarily fixed, so that it becomes easy to accommodate the sheets.

Further, when the lid is attached to the slider and the protruding portion is provided on the upper portion of the slider, and when the slider is pulled out when making a wide size sheet, the protruding portion moves and the protruding portion is formed on the front cover. Since the front cover does not close by abutting, wide size paper is not jammed,
Can be discharged.

[Brief description of the drawings]

1A to 1C are configuration diagrams showing an embodiment of an automatic paper feed tray according to the present invention.

FIG. 2 is a side view for explaining how standard size sheets are stored in this automatic sheet feeding tray.

FIG. 3 is a top view of a tray body and a slider portion when standard size sheets are stored in the automatic sheet feeding tray.

FIG. 4 is a side view illustrating a case where wide size sheets are stored in the automatic sheet feeding tray.

FIG. 5 is a top view of a tray body and a slider portion when a wide size sheet is accommodated in this automatic sheet feeding tray.

FIG. 6 is a side view of a configuration after wide-sized sheets are accommodated in the automatic sheet feeding tray.

FIG. 7 is a cross-sectional configuration diagram of main parts of a printer main body that accommodates the automatic paper feed tray.

FIG. 8 is a cross-sectional configuration diagram of a main part of a printer body that accommodates an automatic paper feed tray on which standard size paper is mounted.

FIG. 9 is a cross-sectional configuration diagram of a main part of a printer body that accommodates an automatic paper feed tray on which wide size paper is mounted.

FIG. 10 is a configuration diagram showing an example of a conventional automatic paper feed tray.

[Explanation of symbols]

 1 Tray Main Body 2 Slider Part 3 Lid Part 5 Fitting Convex Part 6 Claw 12 Projecting Part 15, 16 Fitting Concave Part

Claims (3)

[Claims] 1. An automatic paper feed tray for storing printing paper and supplying the same to a printer, a tray main body, a slider portion that can be slid from the tray main body according to the paper size to enlarge the paper storage portion, and the slider portion. A lid part that is openably and closably attached, one of the upper part of the tray body and the lower part of the lid part is provided with a convex part and the other part is provided with a concave part, and the convex part and the concave part are fitted when the lid part is closed. An automatic paper feed tray characterized by fixing the matching slider part. 2. The slider part is formed with an auxiliary fixing claw, and the claw is formed with a convex part or a concave part on the side that comes into contact with the tray body, and the tray body has a position corresponding to the size of the printing paper. 2. A concave portion or a convex portion for auxiliary fixing the slider portion is formed by, the slider portion is slid to engage the convex portion and the concave portion, and the slider portion is auxiliary fixed. Automatic paper feed tray. 3. A case where a projecting portion is provided at an upper end portion of the lid portion, and a front cover that can be opened and closed vertically is provided to accommodate a printed sheet in an accommodation section of an automatic sheet feeding tray of a printer. 3. The automatic paper feeding tray according to claim 1, wherein when the slider portion is pulled out and the paper storage portion is enlarged, the front cover comes into contact with the protruding portion and is not completely closed.