JPH07322018A - Document reader - Google Patents

Abstract

(57) [Summary] [Purpose] To stably hold the non-reading surface of a book or the like during reading. A document holding plate 10 supported at a document holding position by two leg pieces 21 and 28 pivotally supported so that it can flexibly extend and retract is attached to one side of a reference side of a scanner body 1 so as to be able to rise and fall, and a book is read during a reading period. And the like, and when an excessive force is applied to the document holding plate 10 during the reading period, the two leg pieces 21 and 28 are separated to move downward to the document holding plate 10. The one that allows the rotation of.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document reading device,
More specifically, the present invention relates to a holding mechanism that stably holds a document when reading.

[0002]

2. Description of the Related Art A document reading device, which is a so-called scanner used for reading a document image with an image scanner and reproducing it, has a size close to the maximum readable document size from the viewpoint of reducing the occupied space as much as possible. It is configured.

Therefore, when the original image is to be read from a sheet or book larger than the original table, the other half of the sheet or book placed on the original glass protrudes to the side surface of the original table with one side as a reference. Therefore, it is necessary to perform the reading operation while holding this portion by hand, which causes inconvenience of making the reading unstable.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and its object is to:
An object of the present invention is to provide a new document reading device capable of stably holding a document such as a book during the reading period.

[0005]

That is, according to the present invention, as an original reading apparatus for achieving such an object, an original holding position is provided on at least one side surface of a scanner body by two leg pieces pivotably supported. A document holding member supported by the above is attached so as to be able to rise and fall so as to stably hold a document such as a book during a reading period.

[0006]

Embodiments Now, the embodiments shown in the drawings will be described. Each of the drawings shows an embodiment of the present invention.

First, the outline of this scanner will be described with reference to FIG. 5. In the main body 1 in which the optical equipment of the image scanner is arranged, a cover 3 for covering the original glass 2 is provided at one longitudinal end of the upper surface thereof. The side wall 4 on the reference side of the original glass 2 is pivotally supported so as to be openable and closable, and a storage portion 5 having a length corresponding to the effective length of the original glass 2 is provided therein. A document holding plate 10 which is held by the supporting legs 20 so as to be flush with the surface of the document glass 2 is pivotally supported so as to be up and down.

On the other hand, FIG. 1 shows a state in which the original holding plate 5 is expanded, FIGS. 2 and 3 show a state in which the original holding plate 5 is stored, and FIG. 4 shows an excessive force applied. In this state, the support leg 20 is separated.

The storage portion 5 is provided with U-shaped shaft insertion portions 6 above the inner surfaces of both sides thereof, and here, the shaft portions 11 projecting from both sides of the original holding plate 10 on the base end side are provided. Is rotatably fitted and held, and a projecting piece 7 provided with a locking portion 7a is erected on a part of the lower end of the storage portion 5 and is provided on a rib 12 on the outer periphery of the document holding plate. The document holding plate 10 is configured to be housed and held in the housing portion 5 by engaging with the locking portion 12a.

On the other hand, reference numeral 20 in the drawing is a support leg for holding the holding plate 10 in an expanded position, and the support leg 20 is composed of an inner leg 21 and an outer leg which are rotatably supported at the center. ing.

Of these, the inner leg 21 is a leg piece on the main body side which is accommodated in the central recess 8 of the accommodating portion 5 when folded, and on both sides of the base end side thereof, as shown in FIG. Slit 22,
Thin projecting pieces 23, 23 formed via 22 are provided, and a shaft portion 24 projecting outside of the projecting piece 23 is inserted into a shaft hole 9 provided at the base end side of the recess 8 from the inside. By doing so, the shaft portion 24 is configured to separate from the shaft hole 9 via the elastically deformed projecting piece 23 when a strong external force is applied.

On the other hand, the outer leg 28 is a leg piece whose inner end is connected to the free end of the inner leg 21 and whose outer end is connected to the free end of the document holding plate 10, respectively. The thin protrusions 30, 30 formed on both sides have shaft portions 31, 31
Is fitted in the free end side shaft hole 25 of the inner leg 21, and the shaft portion is attached to the thin wall projecting pieces 34, 34 formed on both sides of the outer end through the slits 33, 33. Three
5 and 35 are provided in a protruding manner, and these shaft portions 35 and 35 are provided on the back surface of the document holding plate 10.
By being fitted in 4, it is constructed as a kind of link that separates when an excessive force acts.

Reference numeral 26 in the drawing denotes a pressing piece provided at the tip of the inner leg 21 in order to support the back surface of the outer leg 28 and take a reliable supporting posture when the document holding plate 10 is expanded. Further, reference numeral 36 denotes a contact edge provided on the outer end of the outer leg 28 for abutting against the corner portion 15 of the rib 13 provided on the document holding plate 10 when the document holding plate 10 is expanded to hold the document holding plate 10 more securely. There is.

The original holding plate 10 thus constructed is
Usually, as shown in FIG. 2, the inner leg 21 and the outer leg 28 are folded, and the support leg 20 is fitted into a recess 8 provided in the central portion of the side wall 4 of the main body 1 and then provided on the document holding plate 10. By engaging the locking portion 7a with the locking portion 12a on the main body 1 side, the document holding plate 10 is stored and held in the storage portion 5.

In this state, in order to make the scanner read the original image of the book, the original holding plate 1 from the side wall 4 of the main body.
When 0 is pulled out and is pulled up so as to be flush with the original glass 2 as shown in FIG. 1, an outer leg 28 whose outer end is pivotally supported on the free end side of the original holding plate 10 and a base. The inner leg 21 whose end is pivotally supported by the lower end of the side wall 4 is expanded with the shaft portion 31 as a fulcrum, and the original holding plate 10 is held at this position while being held in a single plate shape by the degree determining piece 26. Hold on.

Therefore, if the non-reading surface of the book is placed on the original holding plate 10 in this state, the surface to be read can be read in a stable state, and when the reading is completed, the inner leg 21 and When the supporting leg 20 is folded by applying an upward force from the lower side in the figure to the pivotal support portion of the outer leg 28, the document holding plate 10 rotates downward about the shaft portion 11 as a fulcrum and is stored in the storage portion 5. It

On the other hand, in the expanded state, if a shocking force is applied to the document holding plate 10 from above for some reason, the document holding plate 10 rotates downward with the shaft portion 11 as a fulcrum. , With this, the inner leg 21 and the outer leg 2
A force acting in the direction opposite to the folding direction acts on 8, and an abnormal force is applied to the main body 1 and the document holding plate 10 and the shaft portions 24, 31, 35 connecting the legs 21, 28 to each other.

However, as described above, each of the shaft portions 24, 31, 35 has slits 22, 2 respectively.
Thin-walled projection pieces 23, 30, 3 formed separately through 9, 33
4, the force acting on the shaft portions 24, 31, 35 is applied to any one of the protruding pieces 23, 30, 34.
The outer leg 28, as shown in FIG. 3, for example.
The thin protrusions 30 on both sides of the inner end are bent to disengage the shaft portion 31 from the shaft hole 25 so that the inner leg 21 and the outer leg 28 are separated without any damage, and the thin protrusions 30 are moved to the lower side of the document holding plate 10. Is allowed to rotate.

By the way, the present invention has been described above with reference to the embodiment in which the original holding plate 10 is provided on one side of the original glass 2 on the reference side. However, the present invention has been described above in order to stably hold a larger original. The document holding plates 10 supported by the support legs 20 may be arranged on both side surfaces of the scanner body.

[0020]

As described above, according to the present invention, since the document holding member is attached to at least one side surface of the scanner body so as to be capable of undulating, when reading a document image from a large-sized document or a book, By holding the non-reading surface on this holding member, it is possible to stably and easily read the image.

Moreover, thin protrusions are formed on both sides of the two leg pieces supporting the original holding member via slits,
Since the leg piece is connected to the main body, the document holding member, or the leg piece of the other side through the pivot portion formed on the projecting piece, even if a large force acts on the image holding member while the document is held. By deforming the thin projection piece, the pivotally-attached portion can be detached, and the document holding member can be stably tilted down without damaging these members.

[Brief description of drawings]

FIG. 1 is a side view of an apparatus according to an embodiment of the present invention shown in a document holding state.

FIG. 2 is a side view of the same device shown in a stored state.

FIG. 3 is a front view of the same device in the stored state.

FIG. 4 is a front view of the same apparatus showing a state in which the supporting legs are separated due to an excessive force.

FIG. 5 is a perspective view showing the whole of the scanner body.

[Explanation of symbols]

 1 Scanner Main Body 5 Storage Section 10 Document Holding Plate 14 Shaft Hole 20 Support Leg 21 Inner Leg 22 Slit 23 Thin Protrusion 24 Shaft 28 Outer Leg 29 Slit 30 Thin Protrusion 31 Shaft 33 Slit 34 Thin Protrusion 35 Shaft

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H04N 1/04

Claims (2)

[Claims] 1. A document reading apparatus comprising a document body, and a document holding member which is supported at a document holding position by two leg pieces pivotally supported so as to be able to extend and retract at least on one side surface of the scanner body. 2. A thin-walled projecting piece is formed on both sides of the leg pieces via slits, and the leg pieces are attached to the scanner body, the document holding member and the mating side via a pivotal support portion on the projecting piece. The document reading device according to claim 1, wherein the document reading device is connected to each of the leg pieces.