JPS62812B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paper setting mechanism for a device that feeds originals to a facsimile or the like, and is suitable for use in a paper setting mechanism for a facsimile or the like that has a function of reading marks for partial electronic transmission of originals, for example. It is.

For facsimile, for example, if the document to be sent by electronic mail is smaller than B4 size, sending the entire B4 version by electronic mail will take time, and the recording paper will be wasted. , a function to electronically transmit only parts of various sizes such as B4 size or A4 size has become necessary. As a means of such partial transmission, a mark is provided on one side of a transparent sheet to control partial transmission according to the document size (for example, A3, B4, A4, etc.), and the document is fed by sandwiching it between the transparent sheets. There is. Figure 1 shows this relationship. In the same figure, 1
is a transparent sheet, 2 is a document to be clamped on this transparent sheet 1, and the width W of transparent sheet 1 is the width of the document.
control space with w ₁ and partial transmission control mark
The width is the combined width of w ₂ . To perform partial electrical transmission using this transparent sheet 1, move the left guide plate 4L on the paper feed table 3 to the leftmost end as shown in FIG. 2A, align the left end of the transparent sheet 1 with this, and then Align the right guide plate 4R with the right end of 1. When the left guide plate 4L is moved to the leftmost end, a section _L2 several mm to the right from the guide plate is a partial electric transmission control range that matches the control space _w2 of the transparent sheet 1,
Therefore, by reading the partial transmission control mark, the original within the original reading range _L1 is read. On the other hand, Fig. 2B shows an example of setting a plain paper document 2 that is not sandwiched between transparent _sheets in the case of full-surface electronic transmission. The left and right guide plates 4L and 4R are brought into contact. The reason for the left and right distribution is that the document cannot be read in the partial transmission control range _L2 .

However, the conventional left and right guide plates 4L on the paper feed tray 3,
4R, as shown in FIG. 3, was capable of sliding independently along sliding guide holes 5L and 5R formed in the paper feed tray 3. In this conventional device, the left and right guide plates 4L and 4R can be moved freely, which is convenient for the above-mentioned partial transmission, but since the movements of the left and right guide plates are not related, it is difficult to set the document in the center. In case, left and right guide plates 4L, 4R
It is cumbersome to have to move each page separately according to the paper size, and the center position is 1.
There is a drawback that cannot be determined by the operation. Another conventional device is known in which the left and right guide plates are linked so that they always move symmetrically using a symmetrical movement mechanism. However, in the case of partial transmission, if the left guide plate is moved to the leftmost edge, the right guide plate will move to the rightmost edge, making it impossible to align the right guide plate with the right edge of the document.

The present invention eliminates these drawbacks of conventional devices, and in the case of full-scale electric transmission, the left and right guide plates on the paper feed table move in conjunction so that they are distributed in the center, and in the case of partial electric transmission, the left and right guide plates are moved independently. This paper proposes a paper setting mechanism that can move the paper by moving it.A pair of sliding blocks that are always moved symmetrically by a symmetrical movement mechanism are arranged at the bottom of the paper feed tray, and one of the sliding blocks is An auxiliary sliding block is provided on the outside of the block, and a detachment mechanism is provided between this block and the above-mentioned one sliding block to integrate or separate both blocks, and a pair of left and right guide plates are connected to the above-mentioned auxiliary sliding block. , and the other sliding block which does not have an attachment/detachment mechanism.

The invention will now be described with reference to the illustrated embodiments. In FIGS. 4 to 6, the paper feed tray 3, the left and right guide plates 4L, 4R, and the sliding guide hole 5L are in the third position.
The components are the same as those of the conventional device shown in the figure. Paper feed tray 3
A sliding guide rod 6 facing in the same direction as the moving direction of the guide plates 4L, 4R is disposed at the bottom of the guide plate 4L, 4R.
A pair of left and right sliding blocks 7L, 7R and an auxiliary sliding block 8 located outside the left sliding block 7L are slidably fitted into this guide rod 6. The above pair of left and right guide plates 4L, 4R
are fixed to the auxiliary sliding block 8 and the sliding block 7R through sliding guide holes 5L and 5R, respectively.

Pulleys 11 and 12 are also supported by shafts 9 and 10 at both left and right end positions in the lower part of the paper feed table 3, and an endless belt 13 is wound between these pulleys. On the other hand, the pair of sliding blocks 7L and 7R
have mounting brackets 14 and 1 on their undersides, respectively.
5, and these mounting brackets 14 and 15 are attached to the inner and outer parts of an endless belt 13 which is stretched between pulleys 11 and 12 and is parallel to each other. Therefore, a pair of sliding blocks 7L,
The movement of 7R is restrained by the endless belt 13 so that it always moves to a symmetrical position.

The attachment and detachment mechanism between the sliding block 7L and the auxiliary sliding block 8 is such that the auxiliary sliding block 8 is provided with a lock pin 16 that projects downward, and a locking hook 1 that engages and disengages with the lock pin 16 is provided on the lower surface of the sliding block 7L.
7 is pivotally connected by a pin 18, and this locking hook 17 is biased by a spring 23 in a direction to cause its locking groove 19 to engage with the lock pin 16. When the auxiliary sliding block 8, that is, the left guide plate 4L, is moved in the outermost direction, 20 comes into contact with the arm 21 of the locking hook 17 and turns the locking hook to a position where it does not engage with the lock pin. This is a lock release member that can be moved and is provided on a fixed part of the paper feed table 3.

Therefore, the present device according to the above configuration is as shown in FIG. 6A.
When the locking hook 17 and the pin 16 are engaged and the sliding block 7L and the auxiliary sliding block 8 are integrated as shown in FIG. Even if the right guide plate 4R, which is integrated with the sliding block 4R, is moved, both guide plates 4L and 4R always move to almost symmetrical positions with respect to the center of the paper feed table 3. becomes. In this way, it is possible to obtain the function of moving the guide plate symmetrically in the case of full-plane electric transmission.

On the other hand, when the left guide plate 4L is moved outward beyond a certain position, the arm 21 of the locking hook 17 comes into contact with the lock release member 20, and the locking hook 17
and the lock pin 16, and the connection between the sliding block 7L and the auxiliary sliding block 8 is severed.
Therefore, the left and right guide plates 4L, 4R can move freely. When the right guide plate 4R is now at the rightmost end, the left guide plate 4L can move an additional distance to the left, for example, about 15 mm,
It will be understood that if the connection between blocks 7L and 8 is broken while the guide plate 4L is moving this additional distance, the independent operation of the guide plates 4L and 4R for partial electric transmission is possible. . In other words, move the left guide plate 4L to the leftmost edge, place the partial transmission transparent sheet 1 on the paper feed tray 3, and then slide the right guide plate 4R from the right edge toward the center to match it. It can be placed on the right edge of the sheet.

Moreover, in order to interlock the left and right guide plates 4L and 4R again so as to move symmetrically, it is sufficient to simply move the guide plate 4L to the right. When the auxiliary sliding block 8 integrated with the guide 4L moves to the right, the lock pin 16 hits the expansion guide slope 22 at the most extreme end of the locking hook 17, so the hook 17 rotates to open against the force of the spring 23. do. Furthermore, sliding block 7
When L ₁ moves to the right, the locking groove 19 of the hook 17 engages with the lock pin 16, and the sliding piece blocks 7L and 8
are connected to each other.

FIGS. 7 and 8 show examples of other attachment/detachment mechanisms between the sliding block 7L and the auxiliary sliding block 8. In FIG. 7, a locking projection 24 is provided on the auxiliary sliding block 8 side, and a roller catch 25 is provided on the sliding block 7L side for holding this locking projection 24 from both sides. Therefore, normally the blocks 7L and 8 move together, but after the regulating plate 26 of the sliding block 7L engages with the movement regulating member 20, the block 8, that is, the left guide plate 4L, is moved outward. If they are moved, the two will be separated. Further, in FIG. 8, magnets 28 and 29 which attract each other are used in place of the locking protrusion 24 and roller catch 25. It is clear that the same effect as in the above embodiment can be obtained with both of these mechanisms.

Further, in the above embodiment, a pair of left and right sliding blocks 7
In order to move L and 7R symmetrically, an endless belt 13 was used, but as shown in FIG.
A left-right symmetrical movement mechanism can also be obtained by the central link 31 connecting these links. Further, the guide plates 4L, 4R are connected to the auxiliary sliding block 8 and the sliding block 7R by a U-shaped connecting member 32 extending from both sides of the upper part of the paper feed tray 3, as shown in FIG. Good too.

As explained above, according to the present invention, when, for example, a normal original is to be electronically sent over its entire surface, the left and right guide plates on the paper feed table can be moved symmetrically to easily transfer the paper onto the paper feed table, regardless of the width of the paper. In addition, when performing partial transmission, it is possible to break the interlocking relationship between the left and right guide plates, quickly move one guide plate to the extreme end, and set the other guide plate to the width of the document. Therefore, there is an advantage that paper can be easily set up in a facsimile machine or similar equipment.

[Brief explanation of the drawing]

Figures 1A and B are a plan view and a side view showing the relationship between the electronic transmission document and the transparent sheet, Figures 2A and B are plan views showing examples of guide plate settings for partial transmission and full transmission, and Figure 3.
Figure 4 is a plan view of a conventional paper setting device, Figure 4 is a cutaway perspective view of the paper feed table showing an embodiment of the paper setting mechanism according to the present invention, and Figure 5 is a sliding block and an auxiliary sliding block. FIGS. 6A and 6B are rear views showing mutually different operating states of the above-mentioned attachment and detachment mechanism, and FIGS.
The figures are rear views showing examples of other attachment/detachment mechanisms, Figure 9 is a plan view of other examples of symmetrical movement mechanisms for a pair of sliding blocks, and Figures 10A and B are connections between guide plates and sliding blocks. It is a top view and a side view which show another example of a structure. 3...Paper feed stand, 4L, 4R...Guide plate, 7
L, 7R... Sliding block, 8... Auxiliary sliding block, 11, 12... Pulley, 13... Endless belt, 16... Lock pin, 17... Locking hook,
20... Lock release member, 24... Locking protrusion, 2
5...Roller catch, 26...Regulation plate,
28, 29...Magnet.

Claims (1)

[Scope of Claims] 1. A paper feed tray 3, a pair of left and right panels that are slidably disposed on the paper feed tray 3 and that can come into contact with both sides of the paper sheet on the paper feed tray 3 in the width direction. Guide plates 4L, 4R, a pair of left and right sliding blocks 7L, 7R disposed at the bottom of the paper feed tray 3 so as to be able to slide on the sliding guide rod 6 in the same direction as the guide plates 4L, 4R; A symmetrical movement mechanism that always moves the sliding blocks 7L and 7R symmetrically, the above-mentioned pair of sliding blocks 7
An auxiliary sliding block 8 is provided on the outside of one of the sliding blocks L and 7R so as to be able to slide on the sliding guide rod 6, and this auxiliary sliding block 8 and the one sliding block 7L are provided. The auxiliary sliding block 8 is provided with an attachment/detachment mechanism for attachment and detachment, and
A paper setting mechanism characterized in that the other sliding block 7 having no attachment/detachment mechanism is fixed to the pair of guide plates 4L and 4R, respectively. 2. The attachment/detachment mechanism between the auxiliary sliding block 8 and the sliding block 7L consists of a lock pin 16 protruding from one of the blocks, and a locking hook 17 pivotally attached to the other block, which engages and disconnects from the lock pin 16.
and a lock release member 20 that comes into contact with the locking hook 17 and moves the locking hook 17 to a position where it is not engaged with the lock pin 16 when the auxiliary sliding block 8 is moved outside the paper feed table 3. A paper setting mechanism according to claim 1, comprising: 3. The attachment/detachment mechanism between the auxiliary sliding block 8 and the sliding block 7L consists of a locking protrusion 24 protruding from one of the blocks, and a roller catch provided on the other block that holds the locking protrusion 24 from both sides. 25, and a sliding block movement end regulating member 20 that comes into contact with the sliding block 7L and releases the engagement between the roller catch 25 and the locking protrusion 24 when the auxiliary sliding block 8 is moved to the outside of the paper feed tray 3. A paper setting mechanism according to claim 1, comprising: 4 The attachment/detachment mechanism between the auxiliary sliding block 8 and the sliding block 7L includes magnets 28 and 29 that attract and attach both blocks, and the sliding block 7L when the auxiliary sliding block 8 is moved to the outside of the paper feed tray 3. 2. The paper setting mechanism according to claim 1, further comprising a sliding block moving end regulating member 20 which comes into contact with the sliding block to release the suction and adhesion of both blocks by the magnets 28 and 29.