JPH0270625A - Office equipment with automatic paper feeder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Fields The present invention is applicable to copying machines, image scanners, printers,
It relates to office equipment equipped with automatic paper feeding devices, such as word processors and printing machines.

Conventional technology In recent years, there has been a remarkable development in office equipment.In particular, the number of equipment that uses paper, such as reading manuscripts or copying documents or images on paper, has increased dramatically. It is starting to be seen as important.

A page printer shown in FIG. 6 is considered as a conventional office equipment equipped with an automatic paper feeder.

In FIG. 5, 2 is the main body of the device, and its lower main body 2
An upper body 1 is supported in the upper half so as to be rotatable in the direction of the arrow around a shaft 3, and the upper body 1 is rotated during repairs and inspections to inspect the inside. has been done. Note that 4 is a paper feed tray provided in the lower main body 2.

Problem to be Solved by the Invention However, in the above configuration, when a paper jam occurs, if the entire device is downsized, it is difficult to replace or replenish parts. Since only the main body 1 is rotated, it is inconvenient to fully inspect the details of the device.

Means for Solving the Problems In order to solve the above problems, an office machine equipped with an automatic paper feeder according to the present invention is provided with a paper feed tray on the upper main body so that the paper loading surface has a predetermined angle, Means is provided for rotating the paper feed tray so that the angle becomes smaller in sequence in conjunction with the rotation of the upper main body.

According to the present invention, the paper feed tray provided in the upper body rotates in conjunction with the opening of the upper body, so there is no fear that the sheets loaded on the paper feed tray will fall off when the upper body is opened or closed. Additionally, since the opening angle of the upper body can be made larger due to the mechanism, it is possible to easily inspect and maintain the equipment in detail, and the space at the rear of the equipment is also reduced, increasing the work space.

Example An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 4, this device is divided into an upper main body 1 mainly incorporating an automatic paper feeder and a lower main body 2 mainly incorporating an electrophotographic processing device. It is rotatably connected in the direction of the arrow by a support shaft 3 installed at.

A paper feed tray 4 is rotatably attached to the upper main body 1 with a configuration described later, on which paper is stacked in an inclined manner so that one end of the paper is directed downward.

The specific configuration thereof will be explained below using FIGS. 1 to 3.

In FIGS. 1 to 3, 5 is a rotating shaft rotatably supported by both side plates sa and eb of the upper main body 1, and the paper feed tray 4 is rotatable around this rotating shaft 6. Supported. Reference numeral 7 denotes a first sector gear rotatably supported by the rotating shaft 6, and an engagement pin 8 implanted on the side surface of the paper feed tray 4 passes through the first sector gear 7 to It is slidably engaged with an arc-shaped guide hole 9 formed in the side plate 6a.

That is, the paper feed tray 4 and the first fan-shaped gear 7 are attached to the upper main body 1 so as to be rotatable in the range regulated by the guide hole 9. Reference numeral 1o denotes a second fan-shaped gear fixed to the lower body 2 side by a metal fitting 11, and is installed in a semicircular arc shape with the support shaft 3 as the center.

An intermediate gear 12 is rotatably supported around a shaft 13 provided on the side plate θB, and meshes with the first and second fan-shaped gears 7 and 10.

Next, this operation will be explained.

In the normal usage state shown in FIG. 4, the intermediate gear 12 is meshed with the first and second sector gears 7.1o in the state shown in FIG. 1, and the paper loading surface 4a of the paper feed tray 4 is It is stable in a state where it is tilted at a predetermined angle θ with respect to the upper body 1.

From this state, when the upper main body 1 is rotated in the direction of arrow A during repair or inspection, along with this rotation.

The intermediate gear 12 is moved while rotating on the sector gear 1o shown in FIG. As the gear 12 rotates, the first sector gear 7 is rotated in the direction of arrow C, and the paper feed tray 4 is rotated in a direction that reduces the angle θ with respect to the upper main body 1.

That is, even if the upper main body 1 is rotated in the direction of arrow A, the angle of the paper stacking surface 4a of the paper feeding tray 4 with respect to the lower main body 2 does not change significantly.

Therefore, even if the upper main body 1 is rotated, the paper feed tray 4
The sheets loaded on the paper will not fall off.

FIG. 2 shows an example of a state in which the upper body 1 is rotated to the maximum predetermined angle by the guide hole 9, and when the upper body 1 is rotated from this state to the original state shown in FIG. performs the opposite operation to that described above.

In addition, 14 in FIG. 3 is a paper feeding roller fixed to the rotating shaft 6, and the rotating shaft 5 receives the rotational force of a motor (not shown) through a transmission mechanism (not shown), and when feeding paper, the rotational force is transmitted to the rotating shaft 5. It is configured to be rotationally driven.

Effects of the Invention As described above, according to the present invention, since the angle of the paper feed tray attached to the upper body changes as the upper body opens and closes,
There is no fear that the paper loaded on the paper feed tray will slip when the upper body is opened and closed, the opening angle of the upper body can be made larger due to the mechanism, and the space at the rear of the device is also reduced, increasing the space for operating the device.

[Brief explanation of the drawing]

Fig. 1 is a side view of the main parts showing the configuration of office equipment equipped with an automatic paper feeder according to an embodiment of the present invention, Fig. 2 is a side view of the main parts with the upper main body opened, and Fig. 3 is A partially cutaway perspective view of the upper body in a closed state, and FIGS. 4 and 5 are side views showing office equipment equipped with a conventional automatic paper feeder. 1... Upper body, 2... Lower body, 3
......Spindle, 4...Paper feed tray, 5...
... Rotating shaft, 6a... Left side plate, 6b...
...Right side plate, 7...First sector gear, 8...
・Engagement pin, 9... Guide hole, 10...
Second sector gear, 11... Mounting is with metal fittings, 12...
...Intermediate gear, 13...Idler shaft, 14.
...Paper feeding roller. Name of agent: Patent attorney Shigetaka Awano and 1 other person
・-Yoja main body 2...Lower f1 piece 3・-Support shaft 4・-■ Stable tray S-・-Rotation axis '7. IQ---Fan-shaped *car 12- Medium car ~ O- Figure

Claims (1)

[Claims] a lower main body, an upper main body rotatably supported on the lower main body, a paper feed tray provided on the upper main body so that a paper loading surface has a predetermined angle with respect to the upper main body; Office equipment comprising an automatic paper feeder comprising means for rotating the paper feed tray so that the angle becomes smaller in conjunction with the rotation of the upper main body.