JPS58139961A - Extensile tray for paper accumulation - Google Patents

Abstract

PURPOSE:To make effective use of the space around a duplicating machine or the like by inserting the top part of an extensile tray between the floor surface of a fixed tray and projected lower rims for making the size of the tray extensible easily in accordance with the change of the size of papers. CONSTITUTION:A fixed tray 2 is fast fixed on a paper supply port or the like of a duplicating machine 1 and others, and on its both side walls 4, plate-shaped projections 5 are provided to face to each other. Meanwhile, an extensile tray 6 with an outer surface to be closely attached to the inner surface of the fixed tray 2 is prepared to be provided with staged gains so that the width of top parts 8 of its side walls 7 may be equalized with the interval between the floor face of the fixed tray 2 and undersides of plate-shaped projections 5 only within a fixed range of the length of the top parts 8. The side wall top parts 8 of the extensile tray 6 are inserted to be extensible between a bottom plate 3 of the fixed tray 2 and the undersides of the plate-shaped projections 5. This construction permits to extend and contract sizes of trays 2 and 6 in accordance with the change of the paper size for making effective use of the space around the machine.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is directed to a tray for stacking paper in a printer, a copying machine, a facsimile machine, etc., and in particular, when the stacked paper has a large k in the transport direction, the paper can be prevented from falling from the tray. Regarding extension trays to prevent this.

2. Description of the Related Art Paper stacking trays in printers, photographic machines, and the like often have a telescoping mechanism so that they can quickly adapt to the size of the paper being used. However, this was the only equipment available to anyone other than Nakajima @Shin, who had plenty of space, and it had the disadvantage of being expensive.

For this reason, when using small and inexpensive paper aξC, if large-sized paper is used, a fixed tray 2IC1 fixedly attached to the frame as shown in FIGS. 1 and 2. Attachment and detachment of the extended tray 6, such as fixing it with screws 9, etc., was time-consuming and tedious.

The present invention has been made in order to eliminate the above-mentioned drawbacks of the conventional paper stacking tray, and the present invention has been made to eliminate the above-mentioned drawbacks of the conventional paper stacking tray. tζ, protrusions of appropriate shapes are projected so as to face each other, and the inner lll1 part 6ζl of the fixed tray is made.
An extension tray having an outer and inner cross section is prepared, and the height of both 141411 apical parts of the long tray is substantially equal to the distance between the AIJ period fixed foot fixing tray surface and the lower edge of the protrusion over a predetermined yoke 6C. Insert the tip of the tray between the ItJ period fixation tray surface and the lower edge of the protrusion according to the requirement by making a wavy notch so that the values are equal [→ value] The purpose is to provide an extension tray for paper stacking.

Is this invention really true? 11 will be described in detail based on the drawings.

FIG. 3 is a plan view showing an embodiment of the present invention, and FIG. 4 is a plan view showing an embodiment of the present invention.
FIG. 4 is a diagram showing the A-mu mwr plane of FIG. 3;

Copy machine or printer etc.! A fixed tray 2 (b) is added to the SSi2 paper supply or discharge port in an unillustrated extra step. As is clear from the figure, the IJi facing W tray 2 is located at the l11i! of the floorboard 3. - is unreasonable ^ 1111
It has 1 dragon and 4.

The material of the (ildW tray 2, !1i output) is, when the machine l of the present invention is, for example, an electrophotographic copying machine, the material of the paper tray 2, ! It is preferable to miss 1 ftm.Also, Ail machine 1 is preferable.

If you have a heat-sensitive printer (such as an optical impact printer), a plastic one may be fine.

Now, 111 m*) IC plate-shaped protrusions 5.5 are provided at appropriate positions on the upper edge of the inner wall 4 of the relay 2 so as to face each other IC,
This is used as a fixing member for an extension tray, which will be described later.

On the other hand, an extension tray 6 having an outer circumferential surface that closely contacts the inner circumferential surface of the fixed tray 2 is prepared. The height of the extension tray 6 is such that the height of the tips of both pots 7, 7, -8,8σ) is between the floor surface of the fixed tray 2 and the F surface of the plate-like protrusion 5.5 only in a predetermined range. The notches are provided in steps so that the intervals are approximately equal to each other. And parts other than the above tt
M11111i4 of Sm period fixed tray 2, configured to be equivalent to or somewhat better than bird 4.

The extension tray 6 having the above-mentioned structure has its v4 mold tip 51
111 parts 8 and 8 are attached to the bottom plate 3 of the fixed tray 2 and the wall 4
．． If it is inserted between the downward # plate-like protrusions 5, 5 provided in 4, the vertical edge of the step part provided at 11@wall tips 8, 8 of III-recording tray 6 and the back Low G1 Upper edge force S By engaging with the rear edge and bottom m of the 411-shaped protrusions 5, 5 provided on the fixed tray 2, respectively, the depth (depth) of the broken tray is defined. At the same time, the Fuki Masanaga tray 6
mm in the vertical direction.

As described above, according to the present invention, when the mounting tray 6 is securely fixed to the fixed tray 2, it is extremely easy to attach and detach the ζC1jf1.

In addition, in the above-mentioned Example, although the protrusion for fixing an extension tray was plate-shaped, it does not necessarily need to be limited to this. That is, for example, as shown in FIG. Multiple sticks 9 with inner surface iζ erected
, 9... Even if the child is 0, it is obvious that the child is 1 year old.

Of course, in this case (1) the step-like notch of the -1111 leading edge portions 8, 8 of the extension tray 6 should be made with the corner part of a circle equal to the radius of the rod 9. m
Needless to say, arru F is more frank than A.

When the extension tray 2 is moved eastward to the ejected paper stacking section, the step at the front end of the bottom plate will bump into the front rut of the ejected paper.
This may cause the paper to curl or cause a jam in the machine.

In order to prevent such a situation, as shown in Figure 7, the end cross section 6 #l
It is desirable to provide a step 11 corresponding to the thickness of the bottom plate of the flame length tray 6 mainly in the overlapped portion with the mourning tray 6.

The present invention has the structure as described above, so that the copying fan can very easily extend or shorten the size of the paper stacking tray in response to changes in the paper size used in printers. When applied to a machine installed in a narrow space on bamboo, -ζ is one that can effectively utilize the nine walls around the machine and produce stable young fruits.

Furthermore, it goes without saying that the shapes and structures of the retaining portions of the fixed tray 2 and the pure quantity tray 6 may be interchanged. That is, even if the fixed tray 2 is formed into a stepped shape at the side 11 end and a retaining protrusion is provided on the side wall light leakage of the extension tray 6, exactly the same effect can be achieved.

[Brief explanation of the drawing]

FIG. 91 is a plan view of a conventional paper stacking extension tray, FIG. 2 is a front view thereof, FIG. 3 is a plan view showing an embodiment of the present invention, and FIG. Show @ direction # direction diagram, 5th
The figures are side sectional views showing another embodiment of the extension tray fixing protrusion of the present invention, and Figs. 6 and 7 are embodiments in which the contact state between the tip of the floor plate of the IJ extension tray and the fixed tray floor surface is improved. FIG. l...Tawara photo machine or printer, 2...fixed tray, 3
...Fixed tray floor, 4...Kutomi tray @*Q
, 9...Protrusion, 6...Extension tray, 7...Long tray @ song, 8...Stepped light leakage of extension tray noble wall Figure 1 O 2m L-,-,,-j O 6 Figure Off Figure <□-”

Claims (1)

[Claims] (1) One side wall that is provided on both sides of the floorboard and has a predetermined height, and protrusions of an excessively large shape that protrude from the upper edge of the inner wall at appropriate positions facing each other, and are equipped with a printer or a copying machine 41&amp; Go No.
and an extension tray formed into steps so that the distance between the floor surface of the fixed tray and the downward direction of the protrusion is substantially equal to the distance between the floor surface of the fixed tray and the downward direction of the protrusion over a predetermined range. A tray for paper stacking, characterized in that the tray is fixed by pushing the tip of the long tray between the floor surface of the fixed tray and the lower edge of the protrusion.