JPH05281800A - Image forming device - Google Patents

Abstract

PURPOSE:To easily attach/detach an image forming process device to/from an upper part main body, and further, to easily and surely hold the image forming process device on the upper part main body. CONSTITUTION:An image forming device 1 has a lower part main body 3 mainly, incorporating the mechanism part 2 of a paper carrying device, etc., and the upper part main body 5 mainly, incorporating the mechanism part 4 of the image forming process device 9, etc., and the upper part main body 5 can be opened/closed with respect to the lower part main body 3, by using a supporting shaft 11 as a supporting point, and the image forming process device 9 can be attached/detached to/from the upper part main body 5 via a guiding rail 15, from this opening side. The guiding rail 15 is composed of a fixing rail part 16 attached to the nonopening side of the upper part main body 5, and holding the image forming process device 9, in parallel, and a rocking rail part 18 pivotally supported so as to vertically rock, by the fixing rail part 16, and extending toward the opening side of the upper part main body 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus such as an upper and lower two-division type copying machine or printer.

[0002]

2. Description of the Related Art For example, image forming apparatuses such as copiers and printers, which are mainly used for office work, are used very frequently and are often handled by users unfamiliar with them. It is desired that the user can easily perform troubles such as a paper jam and simple repair / inspection and cleaning of each part of the mechanism.

For such a purpose, the main body of the image forming apparatus is divided into two blocks, a lower main body mainly including a mechanical section such as a paper conveying apparatus and an upper main body mainly including a mechanical section such as an image forming process apparatus. Then, the upper main body can be hingedly opened from the lower main body as necessary, and the image forming process device can be detachably attached to the upper main body through the guide rail from the opening side. It is provided.

[0004]

By the way, in such an image forming apparatus, maintenance of the image forming process apparatus is sometimes performed. In this case, the image forming process apparatus is detached from the upper main body. Since the attachment / detachment is performed with the upper main body open, it is inserted into the guide rails of the upper main body at a downward slope from above, and pulled out from the guide rails of the upper main body at an upward slope from below. It takes effort to attach and detach.

Therefore, for example, JP-A-60-2055
As disclosed in Japanese Patent Laid-Open No. 63-63, there is an upper main body which pivotally supports a guide rail so as to be vertically swingable. However, since the entire guide rail swings, the attachment / detachment work of the image forming process apparatus is unstable. In addition, it is difficult to securely hold the upper body even when the upper body is closed to form an image.

The present invention has been made in view of the above circumstances, and an image in which the image forming process apparatus can be easily attached to and detached from the upper main body and the image forming process apparatus can be easily and surely held in the upper main body. It is intended to provide a forming apparatus.

[0007]

In order to solve the above-mentioned problems, the invention according to claim 1 has a lower main body mainly containing a mechanical part such as a paper conveying device and a mechanical part mainly including an image forming process device. An upper main body incorporated therein, the upper main body can be opened and closed on the lower main body with a support shaft as a fulcrum, and the image forming process device can be attached to and detached from the upper main body via a guide rail from the open side. In the image forming apparatus, the guide rail is attached to a non-open side of the upper main body, and a fixed rail portion for holding the image forming process apparatus in parallel, and a pivotal support vertically swingable on the fixed rail portion. And a swing rail portion extending to the open side of the upper body.

According to a second aspect of the present invention, in the image forming apparatus according to the first aspect, there is provided a stopper for holding the oscillating rail portion of the guide rail in a substantially horizontal state when the upper body is open. The feature is that it is provided.

[0009]

According to the first aspect of the present invention, the image forming process device is attachable to and detachable from the upper body via the guide rail. The fixed rail portion of the guide rail is attached to the non-open side of the upper body. The fixed rail portion holds the image forming process device in parallel with the upper main body. When the image forming process device is attached / detached, the swing rail part pivotally supported by the fixed rail part of the guide rail swings in the vertical direction, so that the image forming process device is attached / detached from the substantially horizontal direction with the upper body opened. can do.

According to the second aspect of the invention, the swing rail portion of the guide rail is a stopper, which is held substantially horizontally when the upper main body is open, so that the image forming process apparatus can be easily attached and detached.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the image forming apparatus of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the image forming apparatus,
2 is a right side view of the image forming apparatus, FIG. 3 is a right side view showing a guide rail of the image forming apparatus in cross section, FIG. 4 is a right side view showing the opened state of the image forming apparatus, and FIG. Right side view showing the drawn-out state of the image forming process device of
FIG. 6 is a right side view showing a state in which the image forming process apparatus of the image forming apparatus is pulled out.

The image forming apparatus 1 has a lower main body 3 containing a mechanical section 2 and an upper main body 5 containing a mechanical section 4. The mechanical section 2 of the lower main body 3 is mainly composed of a paper conveying device 7 for the transfer paper supplied from the paper feeding cassette 6, and the transfer paper taken out from the paper feeding cassette 6 is conveyed from the right side of the lower main body 3 by the conveying device. The sheet is conveyed to the left at 7, and a sheet conveying path 8 is formed in the lateral direction. The mechanical section 4 of the upper main body 5 is mainly composed of an image forming process device 9 including a photosensitive drum, and an original pressing cover 10 is provided on the upper part of the upper main body 5.

A support portion 3a is formed on the inner side of the lower main body 3, and an upper main body 5 is provided on the support portion 3a so as to be openable and closable around a support shaft 11 parallel to the paper transport path 8 as a fulcrum. A buffer member such as a gas spring (not shown) is attached between the main body 3 and the upper main body 5 to buffer and support the upper main body 5. Further, on the front side of the lower body 3 opposite to the support shaft 11, a front door 13 that covers the mechanism portions 2 and 4 of the lower body 3 and the upper body 5 is provided by a hinge 14 so as to be opened and closed. In this image forming apparatus 1, in order to maintain the image forming function, the upper main body 3 and the lower main body 5 are integrally locked by a lock mechanism (not shown), and the front door 13 is also closed to lower the lower main body. 3 and the mechanical parts 2 and 4 of the upper main body 5 are covered.

The image forming process device 9 is detachable from the open side of the upper body 5 to the upper body 5 through a guide rail 15. The guide rail 15 is attached to the non-open side of the upper main body 5 and is attached to the image forming process unit 9.
And a swinging rail portion 18 that is supported by the fixed rail portion 16 via a support pin 17 so as to swing vertically and extends toward the open side of the upper main body 5.
It consists of and. The fixed rail portion 16 is formed to have an L-shaped cross section, and the fixed rail portions 16 are attached at a predetermined interval. The swing rail portion 18 is also formed in an L-shaped cross section, and the swing rail portion 18 is fixed rail portion 1.
6 side, the connecting portion 18a is fixed rail portion 16
The image forming process device 9 can be smoothly inserted into the fixed rail portion 16 by extending to the side.

The swing rail portion 18 of the guide rail 15
Is held substantially horizontally by the stopper 19 in a state where the upper body 5 is opened. One end 19a of the stopper 19 is pivotally supported by the support pin 20 on the upper body 5.
The long groove 21 formed in the other end portion 19b is formed in the swing rail portion 18
It is provided by being inserted into the support pin 22 of the above, and this allows the swing rail portion 18 to swing in the vertical direction.

Therefore, when the front door 13 is opened and the upper main body 5 is opened upward as shown in FIG. 4, the image forming process device 9 can be pulled out from the guide rail 15 of the upper main body 5. Since the upper main body 5 of the image forming process apparatus 9 is opened, the image forming process apparatus 9 is pulled out from the guide rail 15 of the upper main body 5 in an upward slope from below. By the way, when the image forming process device 9 is pulled out in this state as shown in FIG. 5, the rear end of the image forming process device 9 is fixed to the fixed rail portion 16.
When it comes off, the swing rail portion 18 can swing in the vertical direction. Therefore, as shown in FIG.
8 is swung downward and supported by the stopper 19, whereby the image forming process apparatus 9 can be pulled out from the swing rail portion 18 in a substantially horizontal state. Therefore, the image forming process device 9 can be easily attached and detached, and can be easily and surely attached.

FIG. 7 is a right side view of another embodiment showing the opened state of the image forming apparatus. In this embodiment, a stopper 23 is provided on the swing rail portion 18 of the guide rail 15,
When the image forming process device 9 is attached or detached, the stopper 23 comes into contact with the fixed rail portion 16 to restrict the rotation of the swing rail portion 18, and holds the swing rail portion 18 in a substantially horizontal state.

[0018]

As described above, according to the first aspect of the present invention, the image forming process device is attachable to and detachable from the upper main body through the guide rail. The guide rail is a fixed rail portion and a swing rail. Since the fixed rail portion is attached to the non-open side of the upper main body, the fixed rail portion holds the image forming process device in parallel with the upper main body. Further, when the image forming process apparatus is attached or detached, the swing rail portion pivotally supported by the fixed rail portion of the guide rail swings in the vertical direction. Therefore, the image forming process apparatus is attached or detached from the substantially horizontal direction with the upper main body opened. Therefore, the image forming process apparatus can be easily attached and detached, and can be easily and surely attached.

According to the second aspect of the present invention, the swing rail portion of the guide rail has a simple structure with a stopper, and the upper body can be reliably held substantially horizontally in the opened state.
The image forming process device can be easily attached and detached.

[Brief description of drawings]

FIG. 1 is a front view of an image forming apparatus.

FIG. 2 is a right side view of the image forming apparatus.

FIG. 3 is a right side view showing a cross section of a guide rail of the image forming apparatus.

FIG. 4 is a right side view showing an opened state of the image forming apparatus.

FIG. 5 is a right side view showing a pulled-out state of the image forming process apparatus of the image forming apparatus.

FIG. 6 is a right side view showing a state in which the image forming process apparatus of the image forming apparatus is pulled out.

FIG. 7 is a right side view of another embodiment showing an open state of the image forming apparatus.

[Explanation of symbols]

 1 Image Forming Device 3 Lower Body 5 Upper Body 7 Paper Conveying Path 9 Image Forming Process Device 11 Support Shaft 13 Front Door 15 Guide Rail 16 Fixed Rail Part 18 Swing Rail Part

Claims (2)

[Claims] 1. A lower main body mainly containing a mechanical section such as a paper conveying device, and an upper main body mainly containing a mechanical section such as an image forming process apparatus. The lower main body has a supporting shaft. In an image forming apparatus that can be opened and closed as a fulcrum, and the image forming process apparatus can be attached to and detached from the open side of the upper body via a guide rail, the guide rail is attached to a non-open side of the upper body. A fixed rail portion that holds the image forming process device in parallel, and a swing rail portion that is axially supported by the fixed rail portion so as to be swingable in the vertical direction and extends toward the open side of the upper main body. A characteristic image forming apparatus. 2. The image forming apparatus according to claim 1, further comprising a stopper for holding the swing rail portion of the guide rail in a substantially horizontal state when the upper body is open. Forming equipment.