JPS60166961A - Open-close type image forming device - Google Patents

Abstract

PURPOSE:To control the opening angle in accordance with operation details and to enhance operation efficiency by dividing an apparatus into 2 parts, pivotally and upward openably supporting the upper part, and rendering the pivot point of a support member movable. CONSTITUTION:A photosensitive body, etc. are pivotally supported in the upper frame 2a of a main body 1 divided into upper and lower frames 2a, 2b by using a paper conveying route as a border face. The frame 2a is freely opened or closed around a supporting pivot 5. The frame 2a is opened and closed with a supporting member 17 engaged with the upper frame 2a and the lower frame 2b, and when the locking mechanism is released from the closing position, the member 17 is extended with the force of a spring inside a cylinder 17a to open the frame 2a at a comparatively small angle, but it is wide enough to remote jammed paper. When further the turning member 20 is turned clockwise on a pivot 21, an opening angle is enlarged, and the maintenance operation of the inside of the apparatus can be carried out. Therefore, the opening angle can be controlled by changing the pivot position of the support member 17 to adapt it to the operation details, and its operation efficiency can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application In the present invention, a latent image is formed on an electrostatic recording medium on a photoreceptor, and this is developed.1. In image forming apparatuses such as photocopiers, facsimile machines, printers, printers, etc., which can accommodate the required image shape on image forming materials such as paper, it is used as a boundary between the image forming material's extension path and allows the machine to be opened and closed vertically. This relates to a device that is divided into two parts.

Conventional technology Image forming apparatus such as a copying machine VC1. Easy removal of paper generated inside the device and maintenance of the device.

In order to make maintenance easier, for example,
Publication No. 7-4061 or JP-A-57-146265
As stated in the publication, 5.
``There was a conventional image forming apparatus W furnace that was pivoted near one end of the C2C2 divided passageway so that it could be opened and closed vertically.

In such an image forming apparatus, a spring is installed between the upper half of the machine and the upper half of the machine, for example, between a spring and a piston, or a spring is interposed between them. ＝ is filled with air KV in the space between the cylinder and the piston, and a telescopic support member such as a so-called gas spring is installed, and this support member biases the upper half of the machine toward the open position and opens it. Support it in position. Open position of the upper half of the machine -
is determined by the extension length of the support member, so that the upper half of the machine is fixedly supported only in the two positions rC and τ, the open position 1 and the closed position. In other words, the opening angle of the image forming apparatus is fixed at a constant angle.

However, as mentioned above, there are many different types of work that must be carried out with the door open; for example, tasks such as removing jammed paper do not require a very large opening angle, but it is difficult to open the door during maintenance or assembly. Many of these tasks are difficult to do without a large opening angle. Therefore, set the τ opening angle to a small value for maintenance.

If the inside of the machine can be heard during maintenance or assembly, the upper half of the machine should not be left wide open even when the machine is being used to remove paper.

There are problems such as unnecessary labor and time expenditure.

Purpose of the Invention Does the invention address the above-mentioned problems with conventional devices? The purpose is to provide an image storage device that can be opened and closed in such a way that the opening angle can be changed to the optimum angle according to the work required.

Structure of the Invention 6 In the present invention, the machine is divided into two as a boundary between the passages of the image forming material, and the surface divided portions are pivoted so as to be able to open and close relatively up and down. In the constant image forming apparatus, the fixed image forming apparatus is provided with an extendable and retractable support member pivotally supported at each end of each of the divided parts, so that the pivot point of the support member with respect to at least one of the divided parts 1c can be moved.

According to the present invention, the opening angle when the supporting member is extended is changed by changing the pivot point position of the supporting member, so that the box can be stopped and supported at the opening of the upper divided part, Various types of work can be easily and efficiently carried out in a furnace by setting the appropriate opening angle according to the contents.

EXAMPLES Below, the illustrated embodiments of the present invention applied to a dry type electrophotographic dream copying machine will be described.

1 and 2 are regular sectional views showing the layout of the main parts inside the main body 1 of the Enoki copying machine.
The machine frame 2a for the upper and lower parts of the machine frame 2b for the lower part MS is penetrated to the paper feed side of the paper 3, and the five fixed support shafts are centered on the upper and lower parts of the machine frame 2b for the lower part MS. It is pivoted so that it can swing freely.

Inside the upper machine frame 2a, a drum-shaped sensing body 6 is rotatably supported, and around the outer periphery of the drum-shaped sensing body 6, there is a WE shell.
c Clockwise: cleaner 7, charger 8° focusing source transmitter 9, dew source lamp 10. A developing device 11 and a paper feeding device r upper half 12α are disposed n, and a lower machine frame 2h is provided with 1 in Figure 1.
℃, cassette tray 13, paper feeder lower half 12b2, rotating corotron 14. A vacuum transformer I5 and a fixed slider 16 are installed. Both the upper and lower machine frames 2a and 2h are normally in the closed position shown in FIG. 1, and the above-mentioned parts work together to perform the self-photographing work. When removing jammed paper due to a paper jam or performing maintenance and maintenance 9 assembly of the device, the upper machine frame 2a is swung upward around the support 1 [1] 5 to the open state shown in FIG.
The support member 17 shown in FIGS. 2.3 to 5 is held in this position by the support member shown below. The support member 17 shown in FIGS. ), and the cylinder 17α has a spring or 7 interposed between it and the piston 17h.
: The enclosed gas furnace is kept in storage. The upper end of the piston 17a is pivoted to the side wall of the upper machine frame 2a by means of a pot shaft 8, and the lower end of the piston 17h is pivoted. There is a rotatable pivot δrL't at the end of the rotary rotary member.The rotary member 2
The other end of the piston 17A is pivoted to the light/dark side of the lower machine frame 26 via the pivot 212, so the pivot point 19 of the piston 17A is connected to the rotation member 20 (force) - the pivot shaft 21. When it rotates, it moves along with the second rotation.

The glue copying machine main tree 1 is normally in the closed position shown in FIG.
However, since the elastic force of the spring or the enclosed gas acts on the gap between the nut L7h and the cylinder 17α, the support wJ material 17 is pushed into the upper machine. The frame 2 is biased to swing upwards on the support side 5, and the upper machine frame resists this biasing force and engages in a locking mechanism [, 1].
l: Locked in the closed & position shown in Figure 3. This locking mechanism and the frame 2α are assembled by the biasing force of the support member 17VC or by adding a slight force to the frame 2α.

The support member 17 also extends as it opens upwards.)
, when the position shown in FIG.
From 1C to 2 guns, use this support member ■7 and other supports 4 as necessary! l! It depends on the structure. During this time, the first moving member 20 is fixed at the position shown in the drawing, and sufficient operations such as taking out the ZIMAM paper can be carried out at a relatively small opening angle in this state.

In case of medical maintenance, maintenance, or assembly work inside the machine, if the opening angle is too wide or the opening angle is too wide, one rotating member should be rotated (as shown by arrow a in Fig. 5).
Center around 217g and rotate 1 clockwise. Then, the pivot axis or pivot point 19 of the piston 17h is at the fifth
As shown in the figure 19+ force) et 19? Since the support member 17 moves upward and closer to the support shaft 5, the opening angle becomes much larger for the same amount of extension of the support member 17. n, 23 regulates the rotation angle of the rotating member 200, and controls the rotation angle of the rotating member 20.
, it is also possible to provide it at an intermediate position r between 722223 fixed at the illustrated position so that the machine frame 2txt can be stopped and held at two or more open positions.

Although FIGS. 6 to 8 show other embodiments,
In this embodiment, the configuration of the support member 17 is exactly the same as that shown in FIGS. The pivot point of the piston 17b is not fixed to another member such as the rotating member in the embodiment described above, There is a free end of the piston 17b.

A guide groove 24 is provided in the lower keyaki frame 2h.
A notch 5.26 is provided at both ends of this guide groove 24.
These notches 5.2 are designed in the guide groove 24.
6, the notched portion cooperates with 26 to form a pivot point of the nTL support member 17 fixed to the lower machine frame 2hVC.

The open state of the main body 1 when the pivot shaft 19 engages with the notch is shown in FIG. 7, and the open state of the main body 1 when the pivot shaft 9 engages with the notch is shown in FIG. 8. As shown in the figure. As can be seen from the drawings of Konori et al., the notched portion is located closer to the support shaft 5 than the notched portion δ, so the opening angle of the direction force S in FIG. 8 becomes large. In this way, in this embodiment, the support member ■7
The pivot point 19 for the lower machine frame 2h
By moving the notch from the notch to the
The furnace opening angle can be changed in 22 steps. Of course, it is possible to install two or more °C cutouts along the guide groove, and to change the °C over the 22nd floor.

``f-1 guide groove 24 is provided with an inclined apex, and a notched portion 26 is installed at a position corresponding to the pivot point 19 in FIG. 5 at a position corresponding to the pivot point 19 in FIG. In this way, the opening angle becomes even larger when the pivot shaft 19 engages with the notch 26.

As described above, two embodiments of the present invention are shown and described.The present invention is not limited to these embodiments, and many modifications can be made within the scope of the present invention. For example, in each of the above embodiments, the pivot point 197Di of the support member 17 relative to the lower machine frame 2bvc is movable;
The pivot point for the upper machine frame 2 Q'VC and the lower machine frame 26 can also be made movable.

As described above, according to the present invention, by changing the pivot point position of the support member, the opening angle of the opening/closing type image forming apparatus can be easily changed, thereby eliminating the need for opening and closing the apparatus. When performing various types of work, the work can be performed at the most suitable opening angle according to the work content, making the work easier and improving work efficiency.

[Brief explanation of the drawing]

FIGS. 1 and 2 are side sectional views of the Enoki photocopier when the camera is closed and opened, and FIGS. 3 to 5 are side views showing the opening/closing mechanism at each opening/closing stage in an embodiment of the present invention. figure,
6 to 8 are similar drawings in other embodiments. 1... Tawara camera body, 2... Machine frame, 3... Paper 24
... Paper path 75 ... Support shaft, 6 ... Photoreceptor, 7
...Cleaner. 8... Charger, 9... Focusing source transmitter, 10...
Tsuyu Genjin 1.11...Developer, 12.Paper paper neck,
13--Cassette tray, 14--Transfer Flotron, 15--Vacuum transformer, 16--
Constant N device, 17... Support member, [8... Pivot shaft,
19... Pivot axis (pivot point), 20... Rotating member, 21... Pivot@222, O... Nutoppa, 2
4... Guide groove, 5.26... Notch floating part. Agent: Patent attorney Nozomi Ehara, 2 people

Claims (1)

[Claims] The machine is divided into two parts as a passage boundary for the image forming material. Image form 552.The image form 552. is pivoted to be able to open and close vertically relative to each other, and is provided with an extendable support member pivotally supported at each end of the section 1111. An opening/closing type image forming apparatus characterized in that the pivot point of the support member is movable in Y relative to at least one of the divisions in the gap.