JPH03111832A - Document fixing device - Google Patents

Abstract

PURPOSE:To easily fix an original and to prevent the original from deviating or jumping owing to the opening/closing operation of a pressure plate by using the pressure plate which is movable and can be stored and fixing the original on an original platen. CONSTITUTION:The original 3 is set on original glass 4 and the movable pressure plate 1 is rotated around a hinge 2 to fix the original 3 on the glass 4. After use, the pressure plate 1 is rotated around the hinge 2 and stored to its original position. Further, the pressure plate 1 can be slid in a groove 9 to fix the original 3.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a device for fixing a document on a document glass using a movable presser plate in a document reading device, and is capable of preventing displacement and flying of the document. It is intended to prevent

[Prior art] ・Two-fold document pressure bonding plate (Conventional example 1) As shown in FIG. 6, this is a pressure bonding plate composed of two parts 7.8 and an intermediate hinge, The original was fixed at part 7 and closed at 8 to prevent the original from shifting.

・Put the ribs on the back side. (Conventional Example 2) By creating a wall with ribs on the back side of the document table, the document was prevented from flying away due to the wind pressure when the pressure bonding plate was raised.

[Problem to be solved by the invention] However, in Conventional Example 1.

In FIG. 5, when the document is fixed at l, the document position index is hidden and cannot be seen.

・Since the crimp plate is large and heavy, the movement becomes large and delicate adjustments are difficult.

・When opening the crimp plate, the document cannot be held down completely, causing the document to slip or fly out.

In conventional example 2, ・It has no effect on misalignment of the original.

[Means for Solving the Problems (and Effects)] According to the present invention, by providing a movable and retractable presser plate on the document table, it is possible to easily fix the document in one position.
This prevents the document from shifting and flying when the pressure bonding plate is opened and closed.

[Embodiment] FIGS. 1 and 2 are drawings showing a first embodiment of the present invention and best representing the features of the present invention. In the figure, 1 is a movable holding plate for holding down the original, and 2 is a hinge for rotating the holding plate, which is positioned on the reading reference side of the original. 3 is the manuscript.

4 is the document table glass, 5 is the document pressure plate, and 6 is the document reading device.

In the above configuration, the original 3 is set on the original glass 4,
When the movable holding plate l is rotated around the hinge 2, the document 3 is pressed and fixed to the document table glass 4 by the holding plate l (Fig. 2), and after use, the holding plate l is rotated around the hinge 2. 2
Rotate it around the center and store it in its original position (Figure 1). FIG. 3 is a diagram showing an example of a hinge structure.

As for the effects of Example 1.

- Since the hinge part 2 is located on the reading reference side of the original, it is possible to fix the original diagonally from the original reading reference position, and it is possible to prevent the original from shifting and flying for all paper sizes.

- Since the presser plate l is movable, it can be stored when it is not needed, and it does not interfere with operation when the presser plate is not needed.

[Example 2] FIG. 4 shows a second embodiment of the invention.

In the figure, reference numeral 1 denotes a document holding plate that slides and moves on a groove 9 for holding down the document, 3 is the document, 4 is the document table glass, 5 is the document pressure plate, and 6 is the main body of the document reading device.

In the above configuration, the original 3 is set on the original glass 4,
Slide the sliding original holding plate l to fix the IX original.

FIG. 5 shows an example of the structure of the slide section.

This second embodiment is effective in contrast to the first embodiment described above when the document reading reference is at the center on the left side or the center on the right side.

[Effects of the invention] - Accurate document positioning is possible without being affected by opening and closing of the document pressure plate.

- Since it is movable and can be stored, it does not become an obstacle during normal operation (when a presser plate is not required) or when an automatic document feeder is installed.

- Compared to the conventional two-fold crimp plate, it has a lower cost, more accurate document position fixing, and more reliable document fly prevention effect.

[Brief explanation of drawings]

1 and 2 are perspective views showing the configuration of Example 1, FIG. 3 is a sectional view showing an example of the hinge structure of Example 1, and FIG. 4 is a perspective view showing the configuration of Example 2. FIG. 5 is a sectional view showing an example of the structure of the slide portion of the second embodiment, and FIGS. 6 and 7 are perspective views showing a conventional example. 1 is the document holding plate 2, and its rotating hinge 9 is a guide groove for sliding the document holding plate.

Claims (1)

[Claims] By using a movable presser plate with spring properties,
A document fixing device that fixes a document on a document table and is capable of storing the document.