JPS6123144B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sheet mounting table.

It is desirable for office equipment such as copying machines and facsimile machines to occupy a small amount of space and to have a body shape that does not obstruct operator operation or passage. Various proposals have been made to enable the use of .

However, in the case of a device such as a copying machine or a facsimile machine that is equipped with a so-called sheet platform on which sheets or originals are placed, it is possible to reduce the size of the entire device by using the sheet platform described above. has a structure that protrudes outward from the device body,
Not only does the appearance and strength of the device become unbalanced, but the protruding sheet mounting platform may obstruct operator operations and traffic. In order to solve this problem, conventionally, an auxiliary stand is stored at the bottom of the sheet placing stand, and when the auxiliary stand is used, the auxiliary stand is pulled out and extended to the end of the sheet holding stand, or the above-mentioned auxiliary stand is used. It is known that the tray is configured to be detachable from the apparatus main body, and the tray is inserted into the apparatus main body only when the tray is used.

However, with the former type of auxiliary stand, if the operator accidentally touches it while it is pulled out and the auxiliary stand becomes deformed, it may become impossible to store it or it may not be possible to store it smoothly. - In order to obtain the pull-out operation, it becomes necessary to use a parallel link mechanism, etc., which may lead to an increase in the bulk of the sheet mounting table.

In addition, since the latter auxiliary stand is detachable from the main body of the device, it becomes necessary to attach and detach it each time it is used and after use, which causes trouble to the operator. This results in

As mentioned above, the sheet mounting table extending from the main body of the machine forms a nice writing desk shape, so the operator often uses it as a desk, so it is necessary to align the sheet heads,
When taking notes or taking notes, the device would tilt and its base (hinge) would become damaged or deformed.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to make it possible to fold the sheet mounting table extending from the apparatus main body upwardly and downwardly with respect to the apparatus main body, and to disable the sheet mounting table from being used. A simple, inexpensive, and easy-to-handle sheet mounting system that is sometimes stored above the device body, and when an overload is applied to it, it is retracted and rotated to the bottom of the device body before it is deformed or destroyed. The purpose is to provide a stand.

That is, the sheet loading table of the present invention is a sheet loading table of a device such as a copying machine or a facsimile machine that receives so-called sheet feeding, and the sheet loading table is formed substantially integrally with the main body of the device. It is divided into two mounting tables: a fixed mounting table, which mainly places the front half of the sheet, and a movable mounting table, which serves as an extension of this fixed loading table, and which mainly places the rear half of the sheet. The mounting table is configured to be able to rotate in two directions, upward and downward, relative to the above-mentioned fixed mounting table.

The present invention will be explained below with reference to an illustrated embodiment.

1 and 2 show a side view and a plan view, respectively, of a sheet mounting table according to a first embodiment of the present invention.

In FIGS. 1 and 2, reference numeral 1 indicates the fixed mounting table, and reference numeral 2 indicates the movable mounting table. The fixed mounting table 1 is attached to the main body of the device (not shown).
A U-shaped bracket 1a is formed at the extending end (right side in FIG. 1) of the bracket.

The movable placing table 2 is disposed at the end of the fixed placing table 1 as an extension thereof, and as shown in FIG. Guide boards 2b, 2c on the side of the seat
, a stopper 2d for preventing the placed sheet from falling, and an opening 2e for facilitating the placement and removal of the sheet. A pair of guide substrates 2b and 2c are shown in FIGS.
As shown in the figure, a first support shaft 3 for rotatably disposing the movable mounting table 2 at the end of the fixed mounting table 1
It also serves as a support plate for the second support shaft 4, and has holes 2b-
1, 2c-1 is the support hole of the first support shaft 3, hole 2b-
2 and 2c-2 are support holes for the second support shaft 4. 1st
The support shaft 3 and the second support shaft 4 are provided approximately parallel to the end of the fixed mounting table 1 at a distance that allows them to fit inside the end of the fixed mounting table 1. In the state of being used as an extension part (the state shown in FIG. 1), it is placed in each of the recesses 1b and 1c formed at the end of the side plate of the fixed mounting table 2, respectively. Each support shaft 3, 4 fixed in each of these recesses 1b, 1c
is fixed by a first plate spring 5 that elastically locks the first support shaft 3 in the recess 1b and a second plate spring 6 that elastically locks the second support shaft 4 in the recess 1c. Mounting table 1
are removably supported at the ends of each.

The first plate spring 5 has a hole 5a bored in its center.
(see FIG. 4) is inserted into a short shaft 7 fixedly planted on the lower surface of the fixed mounting table 1 and supported by a nut 8 (see FIG. 1).

On the other hand, the second plate spring 6 is inserted into a U-shaped plate nut by inserting a screw 9 inserted from below into the bracket 1a into a hole 6a (see FIG. 5) drilled in the rear part of the second plate spring 6. 10 (see Figure 6). Note that holes 5b and 6b (see FIGS. 4 and 5) formed at the rear end of each leaf spring 5 and 6 are connected to each pin 11 fixed to the lower surface of the fixed mounting table 1 and the bracket 1a. , 12 so that they do not move blindly relative to the fixed mounting table 1.

In the movable mounting table 2 configured as described above, by lifting it upward as shown in FIG. The seventh
As shown in the figure, the device body (not shown) is folded and stored. Note that the pin indicated by reference numeral 13 in FIG. 7 is for keeping the movable mounting table 2 stationary at the above-mentioned storage position, and is provided at an appropriate position on the main body of the apparatus.

Furthermore, when an overload is applied to the movable mounting table 2 in the use position (the position shown in FIG. It separates from the recess 1b against the elasticity of
The second support shaft 4 is the center of rotation, and as shown in FIG. 8, it rotates downward relative to the fixed mounting table 1 to prevent it or the fixed mounting table 1 from deforming or breaking due to overload. Then, the fixed mounting table 1 is evacuated.

Note that the first leaf spring 5 is designed to withstand a downward impact load applied to the movable mounting table 2 when a sheet (not shown) is set on the movable mounting table 2, or even if the sheet is touched by the hand. The first support shaft 3 has a relatively strong elasticity to the extent that it does not separate from the support recess 1b due to force, and the elasticity is adjusted by rotating the nut 8. In addition, Natsuto 8
The rotation is performed through a hole 1d made in the bracket 1a. On the other hand, the elasticity of the second leaf spring 6 is
The second support shaft 4 is very weak compared to that of the first plate spring 5, and as shown in FIG. It is set to such an extent that it does not come off from the recess 1c, and the adjustment is made by rotating the screw 9 (see FIG. 1).

9 and 10 are a side view and a plan view of a sheet mounting table in a second embodiment of the present invention.

In FIG. 9 and FIG. 10, reference numeral 100 is a fixed mounting table similar to the above, 200 is a movable mounting table,
300 represents a first support shaft, and 400 represents a second support shaft. The sheet placing table in this second embodiment is different from the fixed placing table 100 in that it has a movable placing table 2.
00 is arranged through a pair of side plates 500 (one not shown), and the first support shaft 300 rotatably supports the side plate 500 with respect to the fixed mounting table 100. The two supporting shafts 400 rotatably support the movable mounting table 200 with respect to the side plate 500.

The pair of side plates 500 also serve as guide plates for the side portions of the seat, and are opposed to the bent portions 600a formed on both sides of the locking stay 600 that abuts the end of the fixed mounting table 100. Fixed.

A magnetic catch 700 is fixed at a suitable position on the locking stay 600, and the movable mounting table 20
0, magnetic piece 700 of magnetic catch 700
At the location corresponding to a, there is a suction plate 80 made of an iron piece.
0 is fixed.

The movable mounting table 200 connects the suction plate 800 with the magnetic piece 7
00a, the locking stay 600 is brought into contact with the end of the fixed mounting table 100 for use. When the movable mounting table 200 in this used state is lifted upward in FIG. It is rotated upward with respect to the fixed mounting table 100, and as shown in FIG. 11, its abdomen is brought into contact with a pin 130 provided at an appropriate position on the main body of the apparatus (not shown), and the apparatus is stored.

Further, when an overload is applied to the movable mounting table 200 in the above-mentioned state of use, the suction plate 800 comes off from the magnetic piece 700a, and the movable mounting table 200 is moved to the second position.
As shown in FIG. 12, the support shaft 400 is used as the center of rotation to rotate downward relative to the fixed mounting table 100, and is retracted to prevent deformation and damage of the movable mounting table 200 due to overload.

Note that the movable mounting table 2 in the second embodiment described above
00, unlike the first embodiment, the movable mounting table 200 does not hang down at a substantially right angle to the fixed mounting table, but as shown in FIG. ), the pair of side plates 500
is blocked by a stopper portion 500a formed at the right end in the figure.

In this way, reducing the retracting rotation of the movable mounting table 200 prevents the sheets placed on it from falling, the apparatus main body, or the like during the retracting rotation.
This position is extremely effective in preventing collisions with the paper ejection tray inserted therein.

In addition, in the first embodiment, as described above, in order to reduce the retracting rotation of the movable mounting table, the first support shaft 3 detached from the recess 1b is rotated greatly, as shown in FIG. 13, for example. A stopper 1 of the first support shaft 3 is attached to the end of the side plate of the fixed mounting table 1 to prevent it from moving.
What is necessary is to form e.

As described above, the sheet placing table according to the present invention is configured such that the portion extending from the main body of the device can be folded as a movable placing table and can be rotated to retreat in response to an overload, so that the sheet placing table is not in use. Since it can be stored inside the main body of the device and is not damaged by overload, various problems that occur as the main body of the device becomes smaller can be solved.

[Brief explanation of the drawing]

FIG. 1 shows a first sheet mounting table according to the present invention.
FIG. 2 is a partial plan view of the first embodiment, FIG. 3 is a perspective view of the movable mounting table in the first embodiment, and FIG. 4 is a partial plan view of the first embodiment. FIG. 5 is a perspective view of the second leaf spring, FIG. 6 is a perspective view of a leaf nut supporting the second leaf spring, and FIGS. 7 and 8 are the same as the first leaf spring.
FIG. 9 is a side view of the second embodiment of the sheet mounting table according to the present invention, and FIG. 10 is a side view of the second embodiment of the sheet mounting table according to the present invention. A partial plan view, FIGS. 11 and 12 are side views showing the upward and downward rotation states of the movable mounting table in the second embodiment, and FIG.
FIG. 3 is a side view showing a modification of the first embodiment. 1,100...Fixed mounting table, 2,200...Movable mounting table, 3,300...First support shaft, 4,400...Second
Support shaft, 5...first leaf spring, 700...magnetic catch.

Claims (1)

[Claims] 1. A fixed mounting table for placing the sheet formed on the apparatus main body, a movable mounting table rotatably arranged as an extension of this fixed mounting table, and a movable mounting table that is placed on the fixed mounting table. a first support shaft that forms the center of rotation of the movable mounting table when rotating at the upper position;
When the movable mounting table rotates at a lower position relative to the fixed mounting table, the second
A sheet mounting table comprising a support shaft and means for restraining downward rotation of the movable mounting table about the second support shaft until the load applied to the movable mounting table reaches an overload.