JPS6123143B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an auxiliary table in a sheet feeding device. It is desirable for so-called office equipment such as copying machines and facsimile machines to require as little installation space as possible, and for the shape of the main body to not interfere with operator operation or passage. However, in the case of devices such as copying machines and facsimile machines that are equipped with a feeding tray (sheet loading table) for sheets or originals, the overall size of the device needs to be reduced in order to increase installation space and improve operator operability. As a result, the above-mentioned tray has a structure that protrudes from the outside of the apparatus main body, and this tray may serve as a barrier to operator operations and traffic. In order to solve this problem,
Conventionally, devices are known in which the above-mentioned 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, by making the tray removable in this manner, it becomes necessary to attach and detach the tray during and after use, which causes trouble for the operator.

In consideration of these points, for example, as shown in FIG. It was proposed to consist of a possible auxiliary table 3.

This auxiliary table 3 is configured to be foldable with respect to the main body 1 of the apparatus, so when in use it can be extended to the position shown by the solid line in FIG. By folding, it is possible to increase the operating space for the operator, reduce the area occupied by the entire device, improve the balance of its shape and strength, and make it extremely easy to handle. It has the effect of

However, since the above-mentioned auxiliary table 3 has a writing desk shape as shown in FIG.
The operator often makes notes or aligns the leading edges of sheets on this auxiliary table 3.

Here, if the length of the auxiliary table 3 is assumed to be the length of the auxiliary table 3, and if a load of xg is applied to the rear end of this auxiliary table 3, then the load (rotational torque) will be x・g・cm, and if a 1Kg load is applied to the length If the load is applied at a point of 10 cm, the load will be 10 Kgcm, so if the hinge part of the auxiliary table 3 is made of a small, common type, there is a risk that it will be deformed or destroyed. According to experiments, the auxiliary table 3 was
It has been confirmed that when using the auxiliary table 3, a load of around 5 kg is applied to the auxiliary table 3. Therefore,
Auxiliary table 3, which is usually formed to a length of about 15cm
In this case, a load of 75 kg cm will be applied to the joint (hinge part), and the joint designed to support the auxiliary table itself and the sheets placed on it will not be able to break or deform. It's unavoidable. Furthermore, if the user inadvertently rests his or her hand or elbow on the auxiliary table, or bumps his/her back against the auxiliary table, deformation or destruction of the joint is unavoidable.

In view of the above-mentioned points, the inventor of the present application proposed, for example, the hinge portion 3 of the auxiliary table 3 as shown in FIG.
a is formed into a lattice shape, and is structured to be elastically fitted to a support shaft 4 horizontally suspended at the upper end of the sheet mounting table 2, so that the auxiliary table 3 can be attached to the main body 1 of the apparatus.
An auxiliary table that is foldable and detachably supported is provided. This auxiliary table 3 has a hinge part 3
By forming a into a crab-like shape,
The hinge part 3a is configured to separate from the support shaft 4 when a load xg exceeding a predetermined value (a load greater than the weight of the auxiliary table itself plus the weight of the seat placed on it) is applied. be. Therefore, according to this auxiliary table, when an overload is applied, the auxiliary table is detached from the main body of the apparatus, thereby eliminating the possibility of the hinge portion being destroyed or deformed. However, the auxiliary table described above (see Figure 2) is structured so that the auxiliary table 3 itself falls off from the main body 1 when an overload is applied. This has the disadvantage that the auxiliary table itself may be damaged due to a collision.

The present invention has been made in view of the above-mentioned points, and its object is to make the auxiliary table protruding from the device body foldable with respect to the device body, thereby improving operability and strength balance. Our goal is to provide good equipment.

Another object of the present invention is to provide an auxiliary table that can be detached from the main body of the apparatus in the event of an overload.

Still another object of the present invention is to provide an auxiliary table configured such that when an overload is applied to the auxiliary table, the hinge part of the auxiliary table separates from the end of the sheet placement table, but the auxiliary table itself does not fall off from the main body of the apparatus. It is about providing.

That is, in this invention, a support shaft is pivotally provided at the base of the auxiliary table, and this support shaft is rotatably and removably supported by a support provided at the end of the sheet mounting table, and is detachable from this support. A holding portion for holding the supporting shaft is formed at the end of the sheet mounting table.

The present invention will be explained below with reference to an illustrated embodiment. In FIGS. 3 to 6, reference numeral 10 indicates the main body of the apparatus, 20 indicates a sheet mounting table, and 30 indicates an auxiliary table.

The auxiliary table 30 is provided as an extension of the sheet mounting table 20 formed in the apparatus main body 10, and is normally used as a mounting table for sheets (not shown) to be fed to the apparatus main body 10.

As shown in FIGS. 3 to 6, a pair of ear pieces 3 are provided on both sides of the upper part of the base 30a of the auxiliary table 30.
1 and 32 are formed facing each other (see FIG. 4). Each of these ear pieces 31 and 32 pivotally supports each end of the support shaft 40 of the auxiliary table 30. Note that since the support shaft 40 is placed inside the end 20a of the sheet mounting table 20 and is pivotally supported by each of the above-mentioned ears 31 and 32, is an opening 21 through which each end of the support shaft 40 extends to the side of the sheet mounting table 20;
22 (see FIGS. 4 and 6).

The support shaft 40 is attached to and detached from a support portion that is composed of a pair of engaging members indicated by numerals 51 and 52 and a pair of locking members indicated by numerals 61 and 62 in FIGS. 3 to 6. It is held so that it can rotate upwards.

The engaging members 51 and 52 are respectively fixed at positions on both sides of the lower end of the sheet mounting table 20, and each of the engaging members 51 and 52 hangs down at a substantially right angle to the sheet placing table 20. On each side edge of the hanging piece facing the auxiliary table 30, dogleg-shaped engaging portions 51a and 52a for engaging the support shaft 40 are formed, respectively (see FIGS. 5 and 6). ).

Each locking member 61, 62 is connected to the above-mentioned engaging portion 51.
a, 52a, each locking member 6
1 and 62 are elastically supported from below, each engagement member 5
1 and 52, it functions to rotatably and removably hold the support shaft 40.

Each of the locking members 61 and 62 is pivotably attached to each pin 71 and 72 implanted in the side of the sheet mounting table 20, respectively. These locking members 61,
Each arm end 61b, 62b of 62 is provided with a tightening burr 91, 92, one end of which is connected to one of several small holes drilled in each vertical piece 81, 82 of the base plate 80. The other ends are connected to each other. The springs 91, 9 can be adjusted by appropriately selecting each of the above-mentioned small holes.
The elasticity of 2 can be changed.

Each of the locking members 61 and 62 is connected to each of the springs 91 and 62 described above.
92, each tip 61
a, 62a are given the habit of approaching each engagement portion 51a, 52a of each engagement member 51, 52, respectively. Each locking member 61, 62 due to this habit
Each rotation of each of the above-mentioned tips 61
a, 62a are prevented by elastically abutting on the support shaft 40, respectively (see FIGS. 3 and 6). Therefore, the support shaft 40 is
A supporting portion composed of each engaging portion 51a, 52a and a tip portion 61a, 62a of each locking member has an elastic
That is, it is supported in a detachable and rotatable manner.
Although the support shaft 40 is rotatable with respect to the support part, as shown in FIG.
However, when the auxiliary table 30 is placed at the position 30A, the base end 30a of the auxiliary table 30 comes into contact with the sheet mounting table end 20a, thereby preventing its rotation. As a result, the auxiliary table 30 is
It is placed in a so-called use state in which its upper surface is located substantially on the same plane as that of the sheet mounting table 20.

Auxiliary table 30 configured as described above
When not in use, it is designated by the symbol 30 in Fig. 3.
It can be folded by pivoting around the support shaft 40 from the position in use shown by A to the position shown by reference numeral 30B. In addition, position 30A in the above-mentioned state of use
When an overload is applied to the auxiliary table 30 placed in the
are pushed aside against their respective habits and detached from their supporting parts, so that their hinge parts, i.e.
The support shaft 40, the ears 31, 32, etc. will not be deformed or destroyed.

As the support shaft 40 separates from the support portion, each of the locking members 61 and 62 rotates to the left in FIG. Engaging portions 51a, 5
2a, each of the locking members 61,
Each stopper piece 61c formed on the abdomen of 62,
62c contact the lower surface of the sheet mounting table 20 to prevent rotation of the respective locking members 61, 62, so that the respective tip portions 61a, 61b and the respective engaging portions 5
The support portion of the support shaft 40 formed by the support shaft 1a and 52a has a gap within a range that allows re-engagement of the support shaft 40 (see FIG. 5).

The support shaft 40 separated from the above-mentioned support part is attached to a holding part 100 formed by a lower edge part 20b that continues to the sheet mounting table end part 20a, and a protrusion piece 20c formed by bending the lower edge part 20b at an appropriate position. Therefore, it is held and the auxiliary table 30 is prevented from falling (see FIG. 5).

In addition, the auxiliary table 30 is shown in FIG.
As shown by reference numeral 30C, the device main body 10 is configured to be able to be folded upward (stored) even when the support shaft 40 is detached from its support portion.

In addition, the storage position of the auxiliary table 30 is as follows:
In addition to the position above the main body of the apparatus as described above, it may also be located at the position indicated by the reference numeral 30D in FIG.

Note that the detached auxiliary table 30 is attached to each spring 9 that gives the locking members 61 and 62 a rotational habit.
By inserting the support shaft 40 into the support portion against the elastic force of the support shafts 1 and 92, the support shaft 40 returns to the position shown in FIG.

As described above, since the auxiliary table according to the present invention can be folded upward and downward into the apparatus main body, the operator's movement space can be expanded, and even when overloaded, the auxiliary table can be folded upward and downward. Since the auxiliary table and the device main body are separated, the hinge part will not be deformed or destroyed, and even if it separates from the device main body,
Since the auxiliary table itself will not fall, it will not be damaged.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view showing an example of a device equipped with an auxiliary table, FIG. 2 is a side view of a conventional auxiliary table, FIG. 3 is a side view of an embodiment of the present invention, and FIG. 4 5 is a plan view of the above embodiment, FIG. 5 is a side view showing a modification of the above embodiment, and FIG. 6 is a partial perspective view of the above embodiment. 1, 10... Apparatus body, 2, 20... Sheet mounting table, 3, 30... Auxiliary table, 4, 40... Support shaft,
51, 52... Engaging member, 61, 62... Locking member,
100...Holding section.

Claims (1)

[Claims] 1. An auxiliary table provided as an extension of a sheet loading table formed on the main body of a sheet feeding device, in which the supporting part of the spindle provided at the base of the auxiliary table is connected to the end of the sheet loading table. and a locking member that elastically engages the support shaft with the engaging member, and the auxiliary table can be attached to and detached from the sheet mounting table and rotated upward. A holding part is formed at the end of the sheet mounting table to rotatably hold the support shaft in a state where the support shaft is detached from the support part, and the support shaft is attached to the support part. A sheet feeding device characterized in that the auxiliary table can be folded upward when inserted into the support table, and can be folded upward and downward when the support shaft is detached from its support portion. Auxiliary table in.