JP3466356B2 - Document loading table - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document table on which a part of a document is fixed and placed.

[0002]

2. Description of the Related Art As a conventional document placing table of this type, for example, JP-A-61-1 is used.
The document mounting table disclosed in Japanese Patent No. 84527 can be mentioned.
This document placing table has a problem that the document is merely placed on the document placing table and the document is likely to be displaced during reading. If the original document moves during reading, expansion and contraction of the image occur, and a problem arises in that an accurate read image cannot be obtained.

Therefore, according to the present invention, the original document is simply and steadily fixed to the original table by one action or one operation, and the releasing and taking out of the original document is also one action or one operation in a short time. An object of the present invention is to provide a small-sized and highly reliable reading stand for the original document.

[0004]

According to a first aspect of the present invention, there is provided a document placing table according to claim 1, which achieves the above-mentioned object and which can be easily attached and detached by one action or one operation. In order to provide a placing table, a document placing table on which a part of the original document is fixed and placed, the original document table, a pressing member for fixing the original document to the original document table, and one end of a side surface of the pressing member. A rotation support member for rotatably coupling the vicinity and one end of the side surface of the document table, and a fixing member for fixing the other end of the side surface of the pressing member near the other end of the side surface of the document table, The fixing member is
A horizontally movable shaft having an end protruding from the side surface of the platen, a spring biasing the shaft in one direction, and a lock member attached to the side surface of the pressing member so as to engage with the shaft, Releasing the engagement between the shaft and the lock member,
Release means with operating lever and free rotation on the above-mentioned document table
A link member which is pivotally supported on, Tona is, the shaft is the phosphorus
Engaging one end of the link member to release the link member from the release means.
By rotating the shaft and the locking member
It is characterized in that the engagement with is released .

The document placing table according to the second aspect achieves the above-mentioned object, and even if the thickness of the main document to be clamped is changed, an appropriate clamping force can be obtained according to the thickness, and the fixing member is provided. In order to provide a document placing table that can securely fix the original document even when the size is reduced, when the shaft and the lock member are engaged,
The lock member is provided with an inclined portion so that the position of the shaft is uniquely determined by the size of the gap formed between the platen and the pressing member. The holding force with the pressing member can be automatically adjusted.

[0006] document table according to the third aspect, to achieve the above objects, and to improve operability, for ease of use, the release means supported on the side surface of the pressing member together with the operating lever, The shaft is horizontally moved against the spring force of the spring by the rotating operation of the operation lever, and the engagement between the shaft and the lock member is released.

The document table according to the fourth aspect of the present invention achieves the above-mentioned object, improves the operability by reducing the operating range, and effectively uses the space and downsizes the document table. In addition, the rotational movement direction of the operation lever at the time of disengagement operation is opposite to the rotational movement direction of the release operation of the document table and the pressing member.

In order to achieve the above-mentioned object and to provide a small-sized, lightweight and inexpensive original placing table, the original placing table according to the fifth aspect is such that the releasing means is rotatably supported by the releasing means.
Has a rotating member that is rotated to rotate the link member.
When releasing the engagement between the shaft and the lock member,
The rolling member abuts against the link member and pushes it.

The original placing table according to the sixth aspect of the present invention achieves the above object and provides the original placing table capable of releasing the original document with a light operating force, in order to provide the releasing means and the rotating portion.
The material is arranged inside the pressing member .

[0010]

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a document placing table according to the present invention will be described below with reference to the drawings. FIG. 1 is an overall view of an embodiment of a document placing table according to the present invention. The document placing table 1 is composed of a rectangular upper surface and left and right side surfaces of a rectangular shape having a low height. The side surfaces of the document placing table 1 are bent downward at right angles from the left and right edges of the upper surface of the document placing table 1. There is.
On the other hand, the pressing plate 7 also has a substantially rectangular upper surface and left and right side surfaces of a substantially rectangular or triangular shape having a low height, and the side surfaces are bent downward at right angles from the left and right end sides of the upper surface. Then, one end of the side of the document placing table 1 and the pressing plate 7
One end of the side surface is rotatably connected by an opening / closing fulcrum 15, and the pressing plate 7 can be opened / closed with respect to the document table 1 with a light operating force.

Locking mechanisms 16 and 17 are arranged at the front and rear at the other end of one side surface (left side surface in FIG. 1) of the document placing table 1 and the pressing plate 7, respectively.
Is closed with respect to the pressing plate 7, the locking mechanisms 16 and 17
Engage. The release mechanism 8 is attached to the lock mechanism 17 of the pressing plate 7, and when the release lever 9 of the release mechanism 8 is manually pushed, the engagement between the lock mechanisms 16 and 17 can be easily released.

FIG. 2 shows a lock mechanism 1 of the document table 1 shown in FIG.
6 is a perspective view, and FIG. 3 is a schematic view thereof. A round bar-shaped lock shaft 5 is arranged so as to penetrate through an oval slide groove 2 opened near the other end of each side plate of the document placing table 1 and to project both ends thereof. In addition, a round bar-shaped fulcrum shaft 4
Are rotatably supported on respective side plates of the document placing table 1, and near one ends of the fulcrum shafts 4 are fixed near one ends of the ellipsoidal links 3, respectively. On the other hand, an oval through hole is formed near the other end of each link 3. The lock shaft 5 passes through the through hole of the link 3. Further, two springs 6 are provided below the upper surface of the document placing table 1.
Are arranged, one end of each spring 6 is attached to the document table 1, and the other end of each spring 6 is engaged with the lock shaft 5. The lock shaft 5 is always urged by the spring 6 toward the center of the document table 1 (to the right in FIG. 3).

FIG. 4 is a block diagram of the lock mechanism 17 and the release mechanism 8 of the pressing plate 7 of the document placing table 1 of FIG. The locking mechanism 1 projects downward near the other ends of both sides of the pressing plate 7.
7 is provided. The lock mechanism 17 of the pressing plate 7 mainly includes a smooth curved guide portion 13 protruding in the other end direction and a notch-shaped lock portion 12. The guide unit 13 guides the lock shaft 5 of the document placing table 1 to the lock unit 12 while moving the lock shaft 5 toward the end of the document placing table 1. Also, the document table 1
The lock portion 12 of the pressing plate 7 is a portion where the lock shaft 5 of the document placing table 1 stops when the pressing plate 7 is closed and locked.

The release mechanism 8 is mounted inside the lock mechanism 17, and one end of the rotary plate 10 of the release mechanism 8 is rotatably supported by the lock mechanism 17 via the rotary shaft 14. Since the release mechanism 8 is attached to the inside of the lock mechanism 17, the operator can prevent injury without touching it during operation.

In FIG. 4, a long rod-shaped release lever 9 is attached to the right end of the rotary plate 10, and a release roller 11 is rotatably supported at the left end. When the release lever 9 is gripped and moved to the left, the rotary plate 10 rotates counterclockwise around the rotary shaft 14, and the release roller 11 moves to the left to come into contact with the link 3 and further move the link 3 Moving to the left, the lock shaft 5 engaged with the lock portion 12 of the lock mechanism 17 is moved to the left to release the lock.

5A and 5B are explanatory views showing an operation of closing and locking the pressing plate 7 with respect to the document placing table 1 and an operation of releasing the lock and opening the pressing plate 7, and FIG. 5A shows the pressing plate 7.
Shows a state in which the document is started to be closed with respect to the document placing table 1, and the guide portion 13 of the pressing plate 7 is starting to contact the lock shaft 5 of the document placing table 1. When the pressing plate 7 is pushed down, it is pushed by the guide portion 13 of the pressing plate 7 and the lock shaft 5 of the document placing table 1 resists the spring force toward the end of the document placing table 1 (left in FIG. 5A). Direction), and the state shown in FIG.

When the pressing plate 7 is further pushed down, as shown in FIG.
As shown in (C), the lock shaft 5 reaches the boundary between the guide portion 13 and the lock portion 12. Beyond this boundary, the lock shaft 5 is urged by the spring force to engage with the lock portion 11 and a clamping force is generated between the document table 1 and the pressing plate 7. That is, at this time, the spring 6 pulls the lock shaft 5 to the right, and the inclined portion of the lock portion 12 exerts a holding force that pushes the pressing plate 7 downward.

The pulling force of the spring 6 varies depending on the position of the lock shaft 5, but when a thick document is placed on the document table 1 by the holding plate 7, the lock shaft 5 is located at the left side position and the spring 6 pulls with a great force, and the clamping force increases. On the other hand, when a thin original is sandwiched by the placing plate 7 on the original placing table 1, the lock shaft is moved to the right side and the spring 6 is pulled with a small force, so that the sandwiching force is reduced. In the present embodiment, the spring 6 and the inclined portion of the lock portion 12 automatically adjust to a stable and appropriate clamping force according to the thickness of the document.

Next, as shown in FIG. 6 (A), when the release lever 9 is lifted up, the rotary plate 10 rotates counterclockwise around the rotary shaft 14 and the release roller 11 moves to the link 3. Abut. Further, when the release lever 9 is lifted, the link 3 is moved to the left and the connected lock shaft 5 is moved to the left, and the state shown in FIG. 6B is obtained. At this time, the rotary motion of the link 3 and the rotary motion of the rotary plate 10 do not match,
Although the abutting portion is displaced, the releasing roller 11 is freely rotated, so that the sliding load is reduced and the releasing lever can be pulled up with a light operating force.

As shown in FIG. 6 (C), when the lock shaft 5 reaches the boundary between the guide portion 13 and the lock portion 12, the pressing plate 7 rotates to the right in the opposite direction to the release lever 9 and presses it. The plate 7 floats above the document table 1. When the lock shaft 5 crosses the boundary, the lock is released, and when the release lever 9 is lifted as it is, the pressing plate 7 is continuously and smoothly released as shown in FIG. 6 (D). At this time, the lock shaft 5 has the spring 6
Is back on the right.

[0022]

According to the document table according to the first aspect of the invention, the document table, the pressing member for fixing the original document to the document table, the side surface of the pressing member and the side surface of the document table are close to one end. A rotation supporting member that is rotatably coupled and a fixing member that fixes the other end of the side surface of the pressing member to the other end of the side surface of the document table are provided, and the fixing member projects the end portion from the side surface of the document table. A horizontally movable shaft, a spring that biases the shaft in one direction, a lock member that engages with the shaft and that is attached to the side surface of the pressing member, and the engagement between the shaft and the lock member is released.
The release means with an operating lever and
Since the link member is rotatably supported , the original document can be easily attached and detached by one action, and the operation load of the operator can be lightened. Further, since the document fixing member has a simple structure, there is an effect that the apparatus can be downsized. Furthermore, since the end of the moving shaft is configured to project from the side surface of the document placing table, the pressing member can be made lightweight,
This has the effect of improving operability. And the contract
According to the document placing table according to claim 1, the shaft rotates on the document table.
The link member is engaged with one end of the link member that is pivotally supported.
The release means to rotate the shaft and lock
In addition to the above common effects, the engagement with the
Yes, the two fixing members can be connected as a rotary motion to release them.
It has the effect that it can be configured with one step, and the machine is small
There is an effect that it can be reduced in weight and weight, and can be provided at a low price.

According to the document placing table of the second aspect, when the shaft and the lock member are engaged, the position of the shaft is uniquely determined by the size of the gap formed between the document table and the pressing member. As the lock member is provided with an inclined portion so that the clamping force between the document table and the pressing member is automatically adjusted depending on the position of the shaft, in addition to the common effects described above, the thickness of the document to be clamped is changed. However, there is an effect that an appropriate clamping force can be obtained according to the thickness, and the fixing member can be surely fixed even if the fixing member is downsized. Further, the structure is simple and the cost of the machine can be reduced. There is.

According to the document placing table of the third aspect, there is provided a releasing means for releasing the engagement between the shaft and the lock member, and the releasing means is supported on the side surface of the pressing member together with the operation lever,
By the rotation operation, the shaft is horizontally moved against the spring force of the spring, and the engagement between the shaft and the lock member is released.
In addition to the common effects described above, the operability is improved by operating the operating lever instead of directly operating the shaft, and there is an effect that it is easy to use.In addition, the operating lever is also released from the original placing table together with the holding member after being released. Has the effect of being able to hold.

According to the document placing table of the fourth aspect, since the rotational movement direction of the operation lever at the time of the engagement releasing operation is opposite to the rotational movement direction of the releasing operation of the document table and the pressing member, the above-mentioned common arrangement is possible. In addition to the effect, the way of holding the operation lever after releasing becomes natural, and there is an effect that the pressing member can be released by lifting it up as it is even after releasing,
Compared with the case where the rotation directions are the same, the substantial operating range of the operating portion becomes smaller, and there is an effect that the space can be effectively used and the machine can be downsized.

According to the document table according to claim 5, and the shaft
Rotate the link member to release the engagement with the lock member
The rotating part is rotatably supported by the releasing means when
Since the material abuts against the link member and pushes it, in addition to the common effects described above , the deviation of the circular motion trajectory of the link member and the releasing means
Can be converted into sliding motion by the member that abuts on
Has the effect that the release operation can be performed.
To convert the sliding motion into rolling motion.
Thus, the releasing force can be reduced, and the releasing force can be released with a light operating force .

According to the document table according to the sixth aspect, the release is performed.
The means and the rotating member are configured inside the pressing member.
In addition to the above common effects, the operation part is hidden,
May cause injury or malfunction due to objects being pinched.
There is an effect that can be prevented .

[0028]

[Brief description of drawings]

FIG. 1 is an overall view of an embodiment of a document placing table according to the present invention.

FIG. 2 is a perspective view of a lock mechanism of the document placing table of FIG.

FIG. 3 is a schematic view of a lock mechanism of the document placing table of FIG.

FIG. 4 is a configuration diagram of a lock mechanism and a release mechanism of a pressing plate of the document placing table of FIG.

5 is a diagram showing an operation of closing and locking the pressing plate of the document placing table of FIG. 1 with respect to the document placing table.

FIG. 6 is a diagram showing an operation of unlocking and opening the pressing plate of the document placing table of FIG.

[Explanation of symbols]

1 Document placing table 2 slide groove 3 links 4 fulcrum axis 5 lock shaft 6 springs 7 Press plate 8 Release mechanism 9 Release lever 10 rotating plate 11 Release roller 12 Lock part 13 Induction part 14 rotation axis 15 Opening and closing fulcrum 16 Lock mechanism 17 Lock mechanism

Claims (6)

(57) [Claims] 1. An original placing table on which a part of the original document is fixed and placed, the original document table, a pressing member for fixing the original document to the original plate, and one end of a side surface of the pressing member and The fixing member includes a rotation support member that rotatably connects one end of the document table near one end thereof, and a fixing member that fixes the other end of the side surface of the pressing member near the other end of the side surface of the document table. Is a horizontally movable shaft whose end projects from the side surface of the platen, a spring for urging the shaft in one direction, and a lock member attached to the side surface of the pressing member so as to engage with the shaft. And the operation lever for releasing the engagement between the shaft and the lock member.
And a link member rotatably supported on the platen.
Ri, the shaft is engaged with one end of said link member, said link portion
The shaft is rotated by rotating the material by the releasing means.
An original placing table , wherein the engagement between the lock member and the lock member is released . 2. The position of the shaft is uniquely determined by the size of the gap formed between the platen and the pressing member when the shaft and the lock member are engaged with each other. 2. The document placing table according to claim 1, wherein the lock member is provided with an inclined portion so that the clamping force between the document table and the pressing member can be automatically adjusted by the position of the shaft. The method according to claim 3 wherein said release means supported on the side surface of the pressing member together with the operating lever, the shaft by rotation of the operation lever is moved horizontally against the spring force of the spring, the shaft and the lock The document placing table according to claim 1, wherein the engagement with the member is released. 4. The document placing table according to claim 3, wherein the rotational movement direction of the operation lever at the time of disengagement operation is opposite to the rotation direction of the releasing operation of the document table and the pressing member. . 5. The releasing means is rotatably supported by the releasing means.
It has a rotation member, and the shaft and the locking member by rotating the link member
When releasing the engagement of the
The document placing table according to claim 1 , wherein the document placing table abuts on the material and pushes it. 6. The pressing means for pressing the releasing means and the rotating member.
The document placing table according to claim 5, wherein the document placing table is arranged inside the holding member.