JPS61174050A - Manual paper feeder - Google Patents

Abstract

PURPOSE:To make a temperature rise inside a copying machine body preventable, by installing an opening in a paper receiving surface of a tiltable manual paper feed guide member coupled with a recording device body through a hinge, in case of a copying machine or the like. CONSTITUTION:A lot of openings 20B are installed in a paper receiving surface 20A of a manual paper feed block 20, and if the manual paper feed block 20 is in a state of being housed at an upper position with an automatic paper feed mode, it is opposed to a lot of openings B installed in a side wall of a recording device body A and an opening 22B of a box body 22 housing a manual paper feeder. These openings B serve as an exhaust air port of a heating member inside the recording device A or a fresh air intake, or an air pressure regulating port when there is a moving member inside the recording device body A, and there is provided with a filter C. Thus, stable recording is performable without hindering air circulation through the recording device body.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a manual paper feeding device for manually feeding recording paper to a recording device such as a copying machine.

[Conventional technology]

Conventionally, recording devices such as copying machines and printers are generally configured to supply a sheet-like recording material such as paper outside the machine, transfer and record images such as characters onto it, and then take it out of the machine. There is.

For recording materials such as paper, prepare a large number of frequently used sizes and paper types, store them in a specially made paper feed cassette, and insert them into the recording device. The sheets are automatically pulled out one by one from the cassette and fed into the machine by a sheet feeding means such as a paper roller.

Although this automatic paper feeding method is suitable when you want to obtain a large number of records of the same size and paper quality, when you want to change the paper size, paper quality, etc. However, there are many inconveniences, such as having to replace the entire cassette and not being able to use non-standard sized paper that does not fit in the cassette.

In order to deal with these problems, various manual paper feeding systems have been proposed to manually feed paper, but most of them are complicated, such as having a separate manual feeding system and driving it separately from the automatic paper feeding system. Development of a simpler structure is underway.

For example, in Japanese Patent Application Laid-open No. 54-48559, a manual paper feed slot is provided with a movable paper feed guide plate for manually feeding paper above the paper feed cassette installation part, and when in use, the paper feed guide plate is pushed in. Accordingly, there has been disclosed a paper feeding device that enables manual paper feeding by releasing the pressure contact between the paper in the cassette and the feeding roller.

In this paper feeding device, the manual paper feeding guide plate includes a first guide plate that engages with a paper feeding roller in the copying machine main body, and a second guide plate that is hinged to the first guide plate and is foldable. It is composed of. The second guide plate is folded upward and stored in contact with the side wall of the main body of the copying machine when manual paper feeding is not performed.

[Problem that the invention seeks to solve]

The main body of the copying machine contains a thermal footing device, an exposure light source, an electric motor, and various electrical components and control circuits. The outside air intake and exhaust ports are provided on the side wall of the copying machine.

In the above paper feeding device, among the manual paper feeding guide plates,
When the rotatable second guide plate is not manually feeding paper, it is folded 9 times and brought into contact with the side wall of the copying machine body. It blocks the outside air intake and blocks air circulation.

As a result, the temperature of the copying machine body rises, causing a malfunction.

Means for Solving Problem C] The present invention aims to solve the above conventional problems,
To provide a manual sheet feeding device that can be stored in the exterior of a copying machine body and can prevent a rise in temperature inside the copying machine body.

The manual paper feeding device of the present invention which achieves the above object is characterized in that the paper tray of the manual paper feeding guide member which is hinged to the main body of the recording device and can be tilted up and down has an opening in its surface.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS The manual paper feeder of the present invention will be described in detail below with reference to illustrated embodiments.

1 and 2 are a side view and a sectional view of the paper feeding device according to the present invention during automatic paper feeding.

The paper feeding device includes a $1 paper feeding unit built into the main body of the recording device, and
A manual feeder that has an automatic paper feeder using a paper feed cassette 10 that accommodates a large number of sheets of paper, and a manual paper feeder that manually feeds sheets one by one separately from the automatic paper feeder to accommodate small amounts of different types of copies. It consists of a paper feeding means.

Inside the recording apparatus main body A, a first paper feed section is provided that feeds the paper sheets one by one to the second paper feed roller 1. @1
The paper feeding section includes a paper feeding roller 2. Paper feed belt 3. Tension roller 4. and a fixed roller 5 for preventing double feeding. The double feed prevention roller 5 is swingable,
When the paper feed cassette 10 is mounted on the paper feed table 6, it is pressed by the leading end of the paper feed cassette 10, swings up, and pushes up the paper feed belt 3.

Further, when the paper feed cassette 10 is mounted on the paper feed table 6, the push-up lever 7 is automatically or manually swung, the tip is flipped up, and the middle plate 8 inside the paper feed cassette 10 is pushed up.

As a result, the top layer of the paper P stacked on the intermediate plate 8 is pressed against the surface of the paper feed roller 2.

When a signal for copying is input, the paper feed roller 2 rotates and feeds out the upper layer of paper Pj among the stored paper sheets by friction. The paper P is fed by the paper feed belt 3, and the frictional restraining force of the double-feed prevention roller 5 reliably separates two or more stacked sheets of recording paper, until the topmost layer is separated. Only the sheet is conveyed to the second paper feed roller 1 side.

The above is the operation of the device when storing a large number of sheets of paper in the paper feed cassette 10 and automatically feeding them. Manually feed paper P. When performing manual paper feeding, the manual paper feeding stand is rotated clockwise about the support shaft 21 to open it.

Figure 3 and W! FIG. 14 is a side view and a sectional view of the paper feeding device showing a manual paper feeding state.

The manual paper feed device is located above the paper feed tray 6 of the paper feed cassette 10, and is provided in a housing n on the side of the person who uses the main body of the recording apparatus. The manual paper feeder consists of a fixed portion and a movable portion. An upper guide plate, a support shaft 21, a lower board, and a casing are fixed to the main body of the recording apparatus. A glass film 5 is attached to the lower surface of the upper guide plate, the part that contacts the ready-to-read paper, to improve the alignment of the manual paper P, so that even when curled paper P is manually fed, it is fed smoothly. It has become so.

An engaging member I is rotatably attached to the support shaft 21, and the engaging member I is integrated with the manual paper feeding stand.

The moss is a lower guide plate, and has a guide plate engaging member 4 with a retaining pin provided at the right end, and is slidably mounted on a lower substrate fixed to the recording apparatus main body 1.

When automatically feeding paper using the paper feed cassette 10, by rotating the manual paper feed stand counterclockwise to stand it up, the engaging members also rotate counterclockwise as one, and as shown in FIG. And as shown in FIG. 2, one cam-shaped surface 26A of the retaining member portion moves the retaining bottle portion toward the upper right, whereby the retaining member hole and the lower guide plate n are moved along the lower board. It slides and is pulled up to the upper right.

When manually feeding paper, by rotating the manual paper feed table I clockwise and tilting it down, the engaging members also rotate clockwise as one, as shown in @Figure 3 and Figure 4. The other cam-shaped surface 26B between the retaining members moves the retaining pin to the left, so that the lower guide plate n slides along the base plate and descends to the lower left, and the lower guide plate The left end of the bar enters between the recording paper P stored in the paper feed cassette 10Vc and the feed roller 2, comes into pressure contact with the feed roller 2, and similarly separates the paper PI from the feed roller 2.

The paper P, which is manually fed from above the manual paper feed stand, is inserted into the gap between the lower guide plate n and the upper guide plate c, and is fed in, reaching the contact point between the feed roller 2 and each lower guide plate. . When the recording device is started, the feeding roller 2 rotates and feeds paper in the same manner as automatic paper feeding.

Note that the lower guide plate I is provided with a widthwise movable space between the left and right paper width regulating plates, and the manual paper P is positioned and fed by the paper width regulating plates (9). .

On the other hand, a large number of openings B are formed in the side wall of the main body A of the recording apparatus to allow air to flow between the inside and outside of the main body A of the apparatus. This opening B is an air outlet or outside air intake for a heat generating member inside the recording apparatus main body, or an air pressure adjustment port when there is a movable member inside the recording apparatus main body. In addition, when this opening B is an outside air intake port, a filter C is provided in this opening B if there is a problem of dust and the like adhering to the built-in member.

The housing ρ in which the manual paper feeder is housed is provided with an opening 22B in a portion corresponding to the opening B in the side wall of the recording apparatus itself.

Next, the paper tray of the manual paper feeder has a plurality of openings 20B on the surface 2OA. Figure @5 is a perspective view of the main parts of the paper feeding device during manual paper feeding. The opening 20B is desirably large enough that a fingertip cannot fit therein, and the opening 20B is large enough to accommodate the manual feed paper P! Provided at as many locations as possible to the extent that it does not interfere with loading and feeding. This opening 20B is arranged to face the opening B and the opening 22BIC when the manual paper feed stand is in the stored state as shown in FIG.

Note that the paper tray of the manual paper feeder has a recess 20C in a part of the surface 20A, and this recess 20C is used as a finger hook when rotating the paper feeder to enter the manual paper feeding state. Also, this recess 20C becomes an air flow passage.

Further, the paper tray having the opening 20B as described above has the surface 20A.
Since the paper Pt does not come into full sliding contact with the manual paper Pt and has a small contact area, there is an advantage that the paper P is not electrostatically attracted and manual feeding is performed smoothly.

Although the structure and operation of the manual paper feeder according to the present invention have been described above, the embodiments of the present invention, such as the device and arrangement of members, are not limited thereto.

〔Effect of the invention〕

The manual paper feeder of the present invention has a simple structure and operates reliably, and is particularly useful when the manual paper feeder is stored inside and outside the printer main body when automatically feeding paper using a paper feed cassette. Recording can be performed stably without interfering with air circulation.

[Brief explanation of the drawing]

1 and 2 are a side view and a sectional view of the paper feeding device according to the present invention during automatic paper feeding. FIGS. 3 and 4 are a side view and a sectional view of the paper feeding device showing a manual paper feeding state. FIG. 5 is a perspective view of the main parts of the paper feeding device during manual paper feeding. A...Recording device main body, B...Aperture P,...
Paper (automatic paper feeding) P, ...Paper (manual paper feeding) 10.
...Feed, paper cassette addition...Manual paper feed tray 20A
... Paper tray is a surface 20B... Opening n... Housing 22B... Opening... Locking member

Claims (2)

[Claims] (1) A manual paper feed device characterized in that an opening is provided in the paper receiving surface of a tiltable manual paper feed guide member that is hingedly connected to the main body of the recording device. (2) The manual paper feed according to claim 1, characterized in that when the manual paper feed guide member is closed and stored, the opening is aligned with an air circulation opening of the main body of the recording apparatus. Device.